diff -ruNpax '*.orig' linux-2.6.13-rc3-ieee80211/Documentation/networking/README.ipw2200 linux-2.6.13-rc3-ipw2200/Documentation/networking/README.ipw2200 --- linux-2.6.13-rc3-ieee80211/Documentation/networking/README.ipw2200 1970-01-01 08:00:00.000000000 +0800 +++ linux-2.6.13-rc3-ipw2200/Documentation/networking/README.ipw2200 2005-07-23 00:34:30.000000000 +0800 @@ -0,0 +1,360 @@ + +IPW2200 Driver for Linux in support of: + +Intel PRO/Wireless 2200BG Network Connection Adapter +Intel PRO/Wireless 2915ABG Network Connection Adapter + +Copyright (C) 2004-2005, Intel Corporation + +README.ipw2200 + +Version: +Date : July 13, 2005 + + +Index +----------------------------------------------- +1. Introduction +1.1. Overview of features +1.2. Module parameters +1.3. Wireless Extension Private Methods +1.4. Sysfs Helper Files +2. Ad-Hoc Networking +3. Interacting with Wireless Tools +3.1. iwconfig mode +4. About the Version Numbers +5. Support +6. License + + +1. Introduction +----------------------------------------------- +The following sections attempt to provide a brief introduction to using +the Intel(R) PRO/Wireless 2200BG/2915ABG Driver for Linux. + +This document is not meant to be a comprehensive manual on +understanding or using wireless technologies, but should be sufficient +to get you moving without wires on Linux. + +For information on building and installing the driver, see the INSTALL +file. + + +1.1. Overview of Features +----------------------------------------------- +The current release () supports the following features: + ++ BSS mode (Infrastructure, Managed) ++ IBSS mode (Ad-Hoc) ++ WEP (OPEN and SHARED KEY mode) ++ 802.1x EAP via wpa_supplicant and xsupplicant ++ Wireless Extension support ++ Full B and G rate support (2200 and 2915) ++ Full A rate support (2915 only) ++ Transmit power control ++ S state support (ACPI suspend/resume) + +The following features are currently enabled, but not officially +supported: + ++ WPA ++ long/short preamble support ++ Monitor mode (aka RFMon) + +The distinction between officially supported and enabled is a reflection +on the amount of validation and interoperability testing that has been +performed on a given feature. + + + +1.2. Command Line Parameters +----------------------------------------------- + +Like many modules used in the Linux kernel, the ipw2200 driver allows +certain configuration options to be provided as module parameters. The +most common way to specify a module parameter is via the command line. + +The general form is: + +% modprobe ipw2200 parameter=value + +Where the supported parameter are: + + associate + Set to 0 to disable the auto scan-and-associate functionality of the + driver. If disabled, the driver will not attempt to scan + for and associate to a network until it has been configured with + one or more properties for the target network, for example configuring + the network SSID. Default is 1 (auto-associate) + + Example: % modprobe ipw2200 associate=0 + + auto_create + Set to 0 to disable the auto creation of an Ad-Hoc network + matching the channel and network name parameters provided. + Default is 1. + + channel + channel number for association. The normal method for setting + the channel would be to use the standard wireless tools + (i.e. `iwconfig eth1 channel 10`), but it is useful sometimes + to set this while debugging. Channel 0 means 'ANY' + + debug + If using a debug build, this is used to control the amount of debug + info is logged. See the 'dvals' and 'load' script for more info on + how to use this (the dvals and load scripts are provided as part + of the ipw2200 development snapshot releases available from the + SourceForge project at http://ipw2200.sf.net) + + led + Can be used to turn on experimental LED code. + 0 = Off, 1 = On. Default is 0. + + mode + Can be used to set the default mode of the adapter. + 0 = Managed, 1 = Ad-Hoc, 2 = Monitor + + +1.3. Wireless Extension Private Methods +----------------------------------------------- + +As an interface designed to handle generic hardware, there are certain +capabilities not exposed through the normal Wireless Tool interface. As +such, a provision is provided for a driver to declare custom, or +private, methods. The ipw2200 defines several of these to configure +various settings. + +The general form of using the private wireless methods is: + + % iwpriv $IFNAME method parameters + +Where $IFNAME is the interface name the device is registered with +(typically eth1, customized via one of the various network interface +name managers, such as ifrename) + +The supported private methods are: + + get_mode + Can be used to report out which IEEE mode the driver is + configured to support. Example: + + % iwpriv eth1 get_mode + eth1 get_mode:802.11bg (6) + + set_mode + Can be used to configure which IEEE mode the driver will + support. + + Usage: + % iwpriv eth1 set_mode {mode} + Where {mode} is a number in the range 1-7: + 1 802.11a (2915 only) + 2 802.11b + 3 802.11ab (2915 only) + 4 802.11g + 5 802.11ag (2915 only) + 6 802.11bg + 7 802.11abg (2915 only) + + get_preamble + Can be used to report configuration of preamble length. + + set_preamble + Can be used to set the configuration of preamble length: + + Usage: + % iwpriv eth1 set_preamble {mode} + Where {mode} is one of: + 1 Long preamble only + 0 Auto (long or short based on connection) + + +1.4. Sysfs Helper Files: +----------------------------------------------- + +The Linux kernel provides a pseudo file system that can be used to +access various components of the operating system. The Intel(R) +PRO/Wireless 2200BG/2915ABG Driver for Linux exposes several configuration +parameters through this mechanism. + +An entry in the sysfs can support reading and/or writing. You can +typically query the contents of a sysfs entry through the use of cat, +and can set the contents via echo. For example: + +% cat /sys/bus/pci/drivers/ipw2200/debug_level + +Will report the current debug level of the driver's logging subsystem +(only available if CONFIG_IPW_DEBUG was configured when the driver was +built). + +You can set the debug level via: + +% echo $VALUE > /sys/bus/pci/drivers/ipw2200/debug_level + +Where $VALUE would be a number in the case of this sysfs entry. The +input to sysfs files does not have to be a number. For example, the +firmware loader used by hotplug utilizes sysfs entries for transfering +the firmware image from user space into the driver. + +The Intel(R) PRO/Wireless 2915ABG Driver for Linux exposes sysfs entries +at two levels -- driver level, which apply to all instances of the driver +(in the event that there are more than one device installed) and device +level, which applies only to the single specific instance. + + +1.4.1 Driver Level Sysfs Helper Files +----------------------------------------------- + +For the driver level files, look in /sys/bus/pci/drivers/ipw2200/ + + debug_level + + This controls the same global as the 'debug' module parameter + + + +1.4.2 Device Level Sysfs Helper Files +----------------------------------------------- + +For the device level files, look in + + /sys/bus/pci/drivers/ipw2200/{PCI-ID}/ + +For example: + /sys/bus/pci/drivers/ipw2200/0000:02:01.0 + +For the device level files, see /sys/bus/pci/drivers/ipw2200: + + rf_kill + read - + 0 = RF kill not enabled (radio on) + 1 = SW based RF kill active (radio off) + 2 = HW based RF kill active (radio off) + 3 = Both HW and SW RF kill active (radio off) + write - + 0 = If SW based RF kill active, turn the radio back on + 1 = If radio is on, activate SW based RF kill + + NOTE: If you enable the SW based RF kill and then toggle the HW + based RF kill from ON -> OFF -> ON, the radio will NOT come back on + + ucode + read-only access to the ucode version number + + led + read - + 0 = LED code disabled + 1 = LED code enabled + write - + 0 = Disable LED code + 1 = Enable LED code + + NOTE: The LED code has been reported to hang some systems when + running ifconfig and is therefore disabled by default. + + +2. Ad-Hoc Networking +----------------------------------------------- + +When using a device in an Ad-Hoc network, it is useful to understand the +sequence and requirements for the driver to be able to create, join, or +merge networks. + +The following attempts to provide enough information so that you can +have a consistent experience while using the driver as a member of an +Ad-Hoc network. + +2.1. Joining an Ad-Hoc Network +----------------------------------------------- + +The easiest way to get onto an Ad-Hoc network is to join one that +already exists. + +2.2. Creating an Ad-Hoc Network +----------------------------------------------- + +An Ad-Hoc networks is created using the syntax of the Wireless tool. + +For Example: +iwconfig eth1 mode ad-hoc essid testing channel 2 + +2.3. Merging Ad-Hoc Networks +----------------------------------------------- + + +3. Interaction with Wireless Tools +----------------------------------------------- + +3.1 iwconfig mode +----------------------------------------------- + +When configuring the mode of the adapter, all run-time configured parameters +are reset to the value used when the module was loaded. This includes +channels, rates, ESSID, etc. + + +4. About the Version Numbers +----------------------------------------------- + +Due to the nature of open source development projects, there are +frequently changes being incorporated that have not gone through +a complete validation process. These changes are incorporated into +development snapshot releases. + +Releases are numbered with a three level scheme: + + major.minor.development + +Any version where the 'development' portion is 0 (for example +1.0.0, 1.1.0, etc.) indicates a stable version that will be made +available for kernel inclusion. + +Any version where the 'development' portion is not a 0 (for +example 1.0.1, 1.1.5, etc.) indicates a development version that is +being made available for testing and cutting edge users. The stability +and functionality of the development releases are not know. We make +efforts to try and keep all snapshots reasonably stable, but due to the +frequency of their release, and the desire to get those releases +available as quickly as possible, unknown anomalies should be expected. + +The major version number will be incremented when significant changes +are made to the driver. Currently, there are no major changes planned. + +5. Support +----------------------------------------------- + +For direct support of the 1.0.0 version, you can contact +http://supportmail.intel.com, or you can use the open source project +support. + +For general information and support, go to: + + http://ipw2200.sf.net/ + + +6. License +----------------------------------------------- + + Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + James P. Ketrenos + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + diff -ruNpax '*.orig' linux-2.6.13-rc3-ieee80211/drivers/net/wireless/Kconfig linux-2.6.13-rc3-ipw2200/drivers/net/wireless/Kconfig --- linux-2.6.13-rc3-ieee80211/drivers/net/wireless/Kconfig 2005-07-23 00:19:55.000000000 +0800 +++ linux-2.6.13-rc3-ipw2200/drivers/net/wireless/Kconfig 2005-07-23 00:37:53.000000000 +0800 @@ -206,6 +206,73 @@ config IEEE80211_CRYPT_TKIP This can be compiled as a modules and it will be called "ieee80211_crypt_tkip.ko". +config IPW2200 + tristate "Intel PRO/Wireless 2200 802.11bg" + depends on NET_RADIO && PCI && IEEE80211 + select FW_LOADER + select CRYPTO + select CRYPTO_ARC4 + select CRC32 + ---help--- + A driver for the Intel PRO/Wireless 2200 802.11bg wireless + network adapter. + + See for + information on the capabilities currently enabled in this + driver and for tips for debugging issues and problems. + + In order to use this driver, you will need a firmware image for it. + You can obtain the firmware from + . See the above referenced README.ipw2200 + for information on where to install the firmare images. + + You will also very likely need the Wireless Tools in order to + configure your card: + + . + + If you want to compile the driver as a module ( = code which can be + inserted in and remvoed from the running kernel whenever you want), + say M here and read . The module + will be called ipw2200.ko. + + NOTE: The IPW2200 relies on the kernel crypto support + (CONFIG_CRYPTO) in order to support WEP. In addition to + requiring crypto support, you must have the ARC4 module + enabled, as well as the CRC library function. + +config IPW2200_MONITOR + bool "Enable monitor mode" + depends on IPW2200 + ---help--- + This option will enable monitor mode for the IPW2100. + +config IPW_DEBUG + bool "Enable full debugging output" + depends on IPW2200 + ---help--- + This option will enable debug tracing output for the IPW2100. + + This will result in the kernel module being ~100k larger. You can + control which debug output is sent to the kernel log by setting the + value in + + /sys/bus/pci/drivers/ipw2200/debug_level + + This entry will only exist if this option is enabled. For a list of + values you can assign to debug_level, simply perform: + + % . dvals + + From within drivers/net/wireless/ipw2200 + + To set a value, simply echo an 8-byte hex value to the same file: + + % echo 0x00000FFO > /sys/bus/pci/drivers/ipw2200/debug_level + + If you are not trying to debug or develop the IPW2200 driver, you + most likely want to say N here. + config AIRO tristate "Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards" depends on NET_RADIO && ISA && (PCI || BROKEN) diff -ruNpax '*.orig' linux-2.6.13-rc3-ieee80211/drivers/net/wireless/Makefile linux-2.6.13-rc3-ipw2200/drivers/net/wireless/Makefile --- linux-2.6.13-rc3-ieee80211/drivers/net/wireless/Makefile 2005-07-23 00:30:32.000000000 +0800 +++ linux-2.6.13-rc3-ipw2200/drivers/net/wireless/Makefile 2005-07-23 00:35:16.000000000 +0800 @@ -42,3 +42,5 @@ ieee80211-objs := \ ieee80211_rx.o \ ieee80211_wx.o \ ieee80211_geo.o + +obj-$(CONFIG_IPW2200) += ipw2200.o diff -ruNpax '*.orig' linux-2.6.13-rc3-ieee80211/drivers/net/wireless/ipw2200.c linux-2.6.13-rc3-ipw2200/drivers/net/wireless/ipw2200.c --- linux-2.6.13-rc3-ieee80211/drivers/net/wireless/ipw2200.c 1970-01-01 08:00:00.000000000 +0800 +++ linux-2.6.13-rc3-ipw2200/drivers/net/wireless/ipw2200.c 2005-07-23 00:34:08.000000000 +0800 @@ -0,0 +1,11008 @@ +/****************************************************************************** + + Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved. + + 802.11 status code portion of this file from ethereal-0.10.6: + Copyright 2000, Axis Communications AB + Ethereal - Network traffic analyzer + By Gerald Combs + Copyright 1998 Gerald Combs + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + James P. Ketrenos + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ + +#include "ipw2200.h" + +#define IPW2200_VERSION "1.0.6" +#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver" +#define DRV_COPYRIGHT "Copyright(c) 2003-2004 Intel Corporation" +#define DRV_VERSION IPW2200_VERSION + +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_VERSION(DRV_VERSION); +MODULE_AUTHOR(DRV_COPYRIGHT); +MODULE_LICENSE("GPL"); + +static int debug = 0; +static int channel = 0; +static int mode = 0; + +static u32 ipw_debug_level; +static int associate = 1; +static int auto_create = 1; +static int led = 0; +static int disable = 0; +static int hwcrypto = 1; +static const char ipw_modes[] = { + 'a', 'b', 'g', '?' +}; + +#ifdef CONFIG_IPW_QOS +static int qos_enable = 0; +static int qos_burst_enable = 0; +static int qos_no_ack_mask = 0; +static int burst_duration_CCK = 0; +static int burst_duration_OFDM = 0; + +static struct ieee80211_qos_parameters def_qos_parameters_OFDM = +{ + { QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM, QOS_TX3_CW_MIN_OFDM}, + { QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM, QOS_TX3_CW_MAX_OFDM}, + { QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, + { QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, + { QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM, QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM } +}; + +static struct ieee80211_qos_parameters def_qos_parameters_CCK = +{ + { QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK, QOS_TX3_CW_MIN_CCK}, + { QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK, QOS_TX3_CW_MAX_CCK}, + { QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, + { QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, + { QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK, QOS_TX3_TXOP_LIMIT_CCK } +}; + +static struct ieee80211_qos_parameters def_parameters_OFDM = +{ + { DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM, DEF_TX3_CW_MIN_OFDM}, + { DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM, DEF_TX3_CW_MAX_OFDM}, + { DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, + { DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, + { DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM, DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM} +}; + +static struct ieee80211_qos_parameters def_parameters_CCK = +{ + { DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK, DEF_TX3_CW_MIN_CCK}, + { DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK, DEF_TX3_CW_MAX_CCK}, + { DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, + { DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, + { DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK, DEF_TX3_TXOP_LIMIT_CCK} +}; + +static u8 qos_oui[QOS_OUI_LEN] = { 0x00 , 0x50 , 0xF2 }; + +static int from_priority_to_tx_queue[] = +{ + IPW_TX_QUEUE_1 , IPW_TX_QUEUE_2 , IPW_TX_QUEUE_2 , IPW_TX_QUEUE_1 , + IPW_TX_QUEUE_3 , IPW_TX_QUEUE_3 , IPW_TX_QUEUE_4 , IPW_TX_QUEUE_4 +}; + + +static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv); + +static int ipw_send_qos_params_command(struct ipw_priv *priv,struct ieee80211_qos_parameters *qos_param); +static int ipw_send_qos_info_command(struct ipw_priv *priv,struct ieee80211_qos_information_element *qos_param); +#endif /* CONFIG_IPW_QOS */ + +static void ipw_remove_current_network(struct ipw_priv *priv); +static void ipw_rx(struct ipw_priv *priv); +static int ipw_queue_tx_reclaim(struct ipw_priv *priv, + struct clx2_tx_queue *txq, int qindex); +static int ipw_queue_reset(struct ipw_priv *priv); + +static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf, + int len, int sync); + +static void ipw_tx_queue_free(struct ipw_priv *); + +static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *); +static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *); +static void ipw_rx_queue_replenish(void *); +static int ipw_up(struct ipw_priv *); +static void ipw_bg_up(void*); +static void ipw_down(struct ipw_priv *); +static void ipw_bg_down(void *); +static int ipw_config(struct ipw_priv *); +static int init_supported_rates(struct ipw_priv *priv, + struct ipw_supported_rates *prates); +static void ipw_set_hwcrypto_keys(struct ipw_priv *); +static void ipw_send_wep_keys(struct ipw_priv *, int ); + +static char *snprint_line(char *buf, size_t count, + const u8 *data, u32 len, u32 ofs) +{ + int out, i, j, l; + char c; + + out = snprintf(buf, count, "%08X", ofs); + + for (l = 0, i = 0; i < 2; i++) { + out += snprintf(buf + out, count - out, " "); + for (j = 0; j < 8 && l < len; j++, l++) + out += snprintf(buf + out, count - out, "%02X ", + data[(i * 8 + j)]); + for (; j < 8; j++) + out += snprintf(buf + out, count - out, " "); + } + + out += snprintf(buf + out, count - out, " "); + for (l = 0, i = 0; i < 2; i++) { + out += snprintf(buf + out, count - out, " "); + for (j = 0; j < 8 && l < len; j++, l++) { + c = data[(i * 8 + j)]; + if (!isascii(c) || !isprint(c)) + c = '.'; + + out += snprintf(buf + out, count - out, "%c", c); + } + + for (; j < 8; j++) + out += snprintf(buf + out, count - out, " "); + } + + return buf; +} + +static void printk_buf(int level, const u8 *data, u32 len) +{ + char line[81]; + u32 ofs = 0; + if (!(ipw_debug_level & level)) + return; + + while (len) { + printk(KERN_DEBUG "%s\n", + snprint_line(line, sizeof(line), &data[ofs], + min(len, 16U), ofs)); + ofs += 16; + len -= min(len, 16U); + } +} + +static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg); +#define ipw_read_reg32(a, b) _ipw_read_reg32(a, b) + +static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg); +#define ipw_read_reg8(a, b) _ipw_read_reg8(a, b) + +static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value); +static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c) +{ + IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c)); + _ipw_write_reg8(a, b, c); +} + +static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value); +static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c) +{ + IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c)); + _ipw_write_reg16(a, b, c); +} + +static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value); +static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c) +{ + IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(b), (u32)(c)); + _ipw_write_reg32(a, b, c); +} + +#define _ipw_write8(ipw, ofs, val) writeb((val), (ipw)->hw_base + (ofs)) +#define ipw_write8(ipw, ofs, val) \ + IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \ + _ipw_write8(ipw, ofs, val) + +#define _ipw_write16(ipw, ofs, val) writew((val), (ipw)->hw_base + (ofs)) +#define ipw_write16(ipw, ofs, val) \ + IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \ + _ipw_write16(ipw, ofs, val) + +#define _ipw_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs)) +#define ipw_write32(ipw, ofs, val) \ + IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \ + _ipw_write32(ipw, ofs, val) + +#define _ipw_read8(ipw, ofs) readb((ipw)->hw_base + (ofs)) +static inline u8 __ipw_read8(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) { + IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", f, l, (u32)(ofs)); + return _ipw_read8(ipw, ofs); +} +#define ipw_read8(ipw, ofs) __ipw_read8(__FILE__, __LINE__, ipw, ofs) + +#define _ipw_read16(ipw, ofs) readw((ipw)->hw_base + (ofs)) +static inline u16 __ipw_read16(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) { + IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", f, l, (u32)(ofs)); + return _ipw_read16(ipw, ofs); +} +#define ipw_read16(ipw, ofs) __ipw_read16(__FILE__, __LINE__, ipw, ofs) + +#define _ipw_read32(ipw, ofs) readl((ipw)->hw_base + (ofs)) +static inline u32 __ipw_read32(char *f, u32 l, struct ipw_priv *ipw, u32 ofs) { + IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", f, l, (u32)(ofs)); + return _ipw_read32(ipw, ofs); +} +#define ipw_read32(ipw, ofs) __ipw_read32(__FILE__, __LINE__, ipw, ofs) + +static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int); +#define ipw_read_indirect(a, b, c, d) \ + IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \ + _ipw_read_indirect(a, b, c, d) + +static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 *data, int num); +#define ipw_write_indirect(a, b, c, d) \ + IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \ + _ipw_write_indirect(a, b, c, d) + +/* indirect write s */ +static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, + u32 value) +{ + IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", + priv, reg, value); + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); + _ipw_write32(priv, IPW_INDIRECT_DATA, value); +} + + +static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value) +{ + IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK); + _ipw_write8(priv, IPW_INDIRECT_DATA, value); +} + +static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, + u16 value) +{ + IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK); + _ipw_write16(priv, IPW_INDIRECT_DATA, value); +} + +/* indirect read s */ + +static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg) +{ + u32 word; + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK); + IPW_DEBUG_IO(" reg = 0x%8X : \n", reg); + word = _ipw_read32(priv, IPW_INDIRECT_DATA); + return (word >> ((reg & 0x3)*8)) & 0xff; +} + +static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg) +{ + u32 value; + + IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg); + + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); + value = _ipw_read32(priv, IPW_INDIRECT_DATA); + IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value); + return value; +} + +/* iterative/auto-increment 32 bit reads and writes */ +static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, + int num) +{ + u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; + u32 dif_len = addr - aligned_addr; + u32 i; + + IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); + + if (num <= 0) + { + return; + } + + /* Read the first nibble byte by byte */ + if (unlikely(dif_len)) + { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + /* Start reading at aligned_addr + dif_len */ + for (i = dif_len; ((i < 4) && (num > 0)); i++, num--) + *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i); + aligned_addr += 4; + } + + _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); + for (;num >= 4; buf += 4, aligned_addr += 4, num -= 4) + *(u32*)buf = _ipw_read32(priv, IPW_AUTOINC_DATA); + + /* Copy the last nibble */ + if (unlikely(num)) + { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + for (i = 0; num > 0; i++, num--) + *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i); + } +} + + +static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, + int num) +{ + u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; + u32 dif_len = addr - aligned_addr; + u32 i; + + IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); + + if (num <= 0) + { + return; + } + + /* Write the first nibble byte by byte */ + if (unlikely(dif_len)) + { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + /* Start reading at aligned_addr + dif_len */ + for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++) + _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); + aligned_addr += 4; + } + + _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); + for (;num >= 4; buf += 4, aligned_addr += 4, num -= 4) + _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32*)buf); + + /* Copy the last nibble */ + if (unlikely(num)) + { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + for (i = 0; num > 0; i++, num--, buf++) + _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); + } +} + +static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf, + int num) +{ + memcpy_toio((priv->hw_base + addr), buf, num); +} + +static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask) +{ + ipw_write32(priv, reg, ipw_read32(priv, reg) | mask); +} + +static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask) +{ + ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask); +} + +static inline void ipw_enable_interrupts(struct ipw_priv *priv) +{ + if (priv->status & STATUS_INT_ENABLED) + return; + priv->status |= STATUS_INT_ENABLED; + ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL); +} + +static inline void ipw_disable_interrupts(struct ipw_priv *priv) +{ + if (!(priv->status & STATUS_INT_ENABLED)) + return; + priv->status &= ~STATUS_INT_ENABLED; + ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); +} + +static char *ipw_error_desc(u32 val) +{ + switch (val) { + case IPW_FW_ERROR_OK: + return "ERROR_OK"; + case IPW_FW_ERROR_FAIL: + return "ERROR_FAIL"; + case IPW_FW_ERROR_MEMORY_UNDERFLOW: + return "MEMORY_UNDERFLOW"; + case IPW_FW_ERROR_MEMORY_OVERFLOW: + return "MEMORY_OVERFLOW"; + case IPW_FW_ERROR_BAD_PARAM: + return "BAD_PARAM"; + case IPW_FW_ERROR_BAD_CHECKSUM: + return "BAD_CHECKSUM"; + case IPW_FW_ERROR_NMI_INTERRUPT: + return "NMI_INTERRUPT"; + case IPW_FW_ERROR_BAD_DATABASE: + return "BAD_DATABASE"; + case IPW_FW_ERROR_ALLOC_FAIL: + return "ALLOC_FAIL"; + case IPW_FW_ERROR_DMA_UNDERRUN: + return "DMA_UNDERRUN"; + case IPW_FW_ERROR_DMA_STATUS: + return "DMA_STATUS"; + case IPW_FW_ERROR_DINO_ERROR: + return "DINO_ERROR"; + case IPW_FW_ERROR_EEPROM_ERROR: + return "EEPROM_ERROR"; + case IPW_FW_ERROR_SYSASSERT: + return "SYSASSERT"; + case IPW_FW_ERROR_FATAL_ERROR: + return "FATAL_ERROR"; + default: + return "UNKNOWN_ERROR"; + } +} + +static void ipw_dump_nic_error_log(struct ipw_priv *priv) +{ + u32 desc, time, blink1, blink2, ilink1, ilink2, idata, i, count, base; + + base = ipw_read32(priv, IPWSTATUS_ERROR_LOG); + count = ipw_read_reg32(priv, base); + + if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { + IPW_ERROR("Start IPW Error Log Dump:\n"); + IPW_ERROR("Status: 0x%08X, Config: %08X\n", + priv->status, priv->config); + } + + for (i = ERROR_START_OFFSET; + i <= count * ERROR_ELEM_SIZE; + i += ERROR_ELEM_SIZE) { + desc = ipw_read_reg32(priv, base + i); + time = ipw_read_reg32(priv, base + i + 1*sizeof(u32)); + blink1 = ipw_read_reg32(priv, base + i + 2*sizeof(u32)); + blink2 = ipw_read_reg32(priv, base + i + 3*sizeof(u32)); + ilink1 = ipw_read_reg32(priv, base + i + 4*sizeof(u32)); + ilink2 = ipw_read_reg32(priv, base + i + 5*sizeof(u32)); + idata = ipw_read_reg32(priv, base + i + 6*sizeof(u32)); + + IPW_ERROR( + "%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", + ipw_error_desc(desc), time, blink1, blink2, + ilink1, ilink2, idata); + } +} + +static void ipw_dump_nic_event_log(struct ipw_priv *priv) +{ + u32 ev, time, data, i, count, base; + + base = ipw_read32(priv, IPW_EVENT_LOG); + count = ipw_read_reg32(priv, base); + + if (EVENT_START_OFFSET <= count * EVENT_ELEM_SIZE) + IPW_ERROR("Start IPW Event Log Dump:\n"); + + for (i = EVENT_START_OFFSET; + i <= count * EVENT_ELEM_SIZE; + i += EVENT_ELEM_SIZE) { + ev = ipw_read_reg32(priv, base + i); + time = ipw_read_reg32(priv, base + i + 1*sizeof(u32)); + data = ipw_read_reg32(priv, base + i + 2*sizeof(u32)); + +#ifdef CONFIG_IPW_DEBUG + IPW_ERROR("%i\t0x%08x\t%i\n", time, data, ev); +#endif + } +} + +static inline int ipw_is_init(struct ipw_priv *priv) +{ + return (priv->status & STATUS_INIT) ? 1 : 0; +} + +static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, + u32 *len) +{ + u32 addr, field_info, field_len, field_count, total_len; + + IPW_DEBUG_ORD("ordinal = %i\n", ord); + + if (!priv || !val || !len) { + IPW_DEBUG_ORD("Invalid argument\n"); + return -EINVAL; + } + + /* verify device ordinal tables have been initialized */ + if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) { + IPW_DEBUG_ORD("Access ordinals before initialization\n"); + return -EINVAL; + } + + switch (IPW_ORD_TABLE_ID_MASK & ord) { + case IPW_ORD_TABLE_0_MASK: + /* + * TABLE 0: Direct access to a table of 32 bit values + * + * This is a very simple table with the data directly + * read from the table + */ + + /* remove the table id from the ordinal */ + ord &= IPW_ORD_TABLE_VALUE_MASK; + + /* boundary check */ + if (ord > priv->table0_len) { + IPW_DEBUG_ORD("ordinal value (%i) longer then " + "max (%i)\n", ord, priv->table0_len); + return -EINVAL; + } + + /* verify we have enough room to store the value */ + if (*len < sizeof(u32)) { + IPW_DEBUG_ORD("ordinal buffer length too small, " + "need %zd\n", sizeof(u32)); + return -EINVAL; + } + + IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n", + ord, priv->table0_addr + (ord << 2)); + + *len = sizeof(u32); + ord <<= 2; + *((u32 *)val) = ipw_read32(priv, priv->table0_addr + ord); + break; + + case IPW_ORD_TABLE_1_MASK: + /* + * TABLE 1: Indirect access to a table of 32 bit values + * + * This is a fairly large table of u32 values each + * representing starting addr for the data (which is + * also a u32) + */ + + /* remove the table id from the ordinal */ + ord &= IPW_ORD_TABLE_VALUE_MASK; + + /* boundary check */ + if (ord > priv->table1_len) { + IPW_DEBUG_ORD("ordinal value too long\n"); + return -EINVAL; + } + + /* verify we have enough room to store the value */ + if (*len < sizeof(u32)) { + IPW_DEBUG_ORD("ordinal buffer length too small, " + "need %zd\n", sizeof(u32)); + return -EINVAL; + } + + *((u32 *)val) = ipw_read_reg32(priv, (priv->table1_addr + (ord << 2))); + *len = sizeof(u32); + break; + + case IPW_ORD_TABLE_2_MASK: + /* + * TABLE 2: Indirect access to a table of variable sized values + * + * This table consist of six values, each containing + * - dword containing the starting offset of the data + * - dword containing the lengh in the first 16bits + * and the count in the second 16bits + */ + + /* remove the table id from the ordinal */ + ord &= IPW_ORD_TABLE_VALUE_MASK; + + /* boundary check */ + if (ord > priv->table2_len) { + IPW_DEBUG_ORD("ordinal value too long\n"); + return -EINVAL; + } + + /* get the address of statistic */ + addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3)); + + /* get the second DW of statistics ; + * two 16-bit words - first is length, second is count */ + field_info = ipw_read_reg32(priv, priv->table2_addr + (ord << 3) + sizeof(u32)); + + /* get each entry length */ + field_len = *((u16 *)&field_info); + + /* get number of entries */ + field_count = *(((u16 *)&field_info) + 1); + + /* abort if not enought memory */ + total_len = field_len * field_count; + if (total_len > *len) { + *len = total_len; + return -EINVAL; + } + + *len = total_len; + if (!total_len) + return 0; + + IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, " + "field_info = 0x%08x\n", + addr, total_len, field_info); + ipw_read_indirect(priv, addr, val, total_len); + break; + + default: + IPW_DEBUG_ORD("Invalid ordinal!\n"); + return -EINVAL; + + } + + + return 0; +} + +static void ipw_init_ordinals(struct ipw_priv *priv) +{ + priv->table0_addr = IPW_ORDINALS_TABLE_LOWER; + priv->table0_len = ipw_read32(priv, priv->table0_addr); + + IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n", + priv->table0_addr, priv->table0_len); + + priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1); + priv->table1_len = ipw_read_reg32(priv, priv->table1_addr); + + IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n", + priv->table1_addr, priv->table1_len); + + priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2); + priv->table2_len = ipw_read_reg32(priv, priv->table2_addr); + priv->table2_len &= 0x0000ffff; /* use first two bytes */ + + IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n", + priv->table2_addr, priv->table2_len); + +} + +u32 ipw_register_toggle(u32 reg) +{ + reg &= ~IPW_START_STANDBY; + if (reg & IPW_GATE_ODMA) + reg &= ~IPW_GATE_ODMA; + if (reg & IPW_GATE_IDMA) + reg &= ~IPW_GATE_IDMA; + if (reg & IPW_GATE_ADMA) + reg &= ~IPW_GATE_ADMA; + return reg; +} + + +/* + * LED behavior: + * - On radio ON, turn on any LEDs that require to be on during start + * - On initialization, start unassociated blink + * - On association, disable unassociated blink + * - On disassociation, start unassociated blink + * - On radio OFF, turn off any LEDs started during radio on + * + */ +#define LD_TIME_LINK_ON 300 +#define LD_TIME_LINK_OFF 2700 +#define LD_TIME_ACT_ON 250 + +void ipw_led_link_on(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* If configured to not use LEDs, or nic_type is 1, + * then we don't toggle a LINK led */ + if (priv->config & CFG_NO_LED || + priv->nic_type == EEPROM_NIC_TYPE_1) + return; + + spin_lock_irqsave(&priv->lock, flags); + + if (!(priv->status & STATUS_RF_KILL_MASK) && + !(priv->status & STATUS_LED_LINK_ON)) { + IPW_DEBUG_LED("Link LED On\n"); + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led |= priv->led_association_on; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + priv->status |= STATUS_LED_LINK_ON; + + /* If we aren't associated, schedule turning the LED off */ + if (!(priv->status & STATUS_ASSOCIATED)) + queue_delayed_work(priv->workqueue, + &priv->led_link_off, + LD_TIME_LINK_ON); + } + + spin_unlock_irqrestore(&priv->lock, flags); +} + + +static void ipw_bg_led_link_on(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_led_link_on(data); + up(&priv->sem); +} + + + + +void ipw_led_link_off(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* If configured not to use LEDs, or nic type is 1, + * then we don't goggle the LINK led. */ + if (priv->config & CFG_NO_LED || + priv->nic_type == EEPROM_NIC_TYPE_1) + return; + + spin_lock_irqsave(&priv->lock, flags); + + if (priv->status & STATUS_LED_LINK_ON) { + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led &= priv->led_association_off; + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + IPW_DEBUG_LED("Link LED Off\n"); + + priv->status &= ~STATUS_LED_LINK_ON; + + /* If we aren't associated and the radio is on, schedule + * turning the LED on (blink while unassociated) */ + if (!(priv->status & STATUS_RF_KILL_MASK) && + !(priv->status & STATUS_ASSOCIATED)) + queue_delayed_work(priv->workqueue, &priv->led_link_on, + LD_TIME_LINK_OFF); + + } + + spin_unlock_irqrestore(&priv->lock, flags); +} + + +static void ipw_bg_led_link_off(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_led_link_off(data); + up(&priv->sem); +} + + + +static inline void __ipw_led_activity_on(struct ipw_priv *priv) +{ + u32 led; + + if (priv->config & CFG_NO_LED) + return; + + if (priv->status & STATUS_RF_KILL_MASK) + return; + + if (!(priv->status & STATUS_LED_ACT_ON)) { + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led |= priv->led_activity_on; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + IPW_DEBUG_LED("Activity LED On\n"); + + priv->status |= STATUS_LED_ACT_ON; + + cancel_delayed_work(&priv->led_act_off); + queue_delayed_work(priv->workqueue, &priv->led_act_off, + LD_TIME_ACT_ON); + } else { + /* Reschedule LED off for full time period */ + cancel_delayed_work(&priv->led_act_off); + queue_delayed_work(priv->workqueue, &priv->led_act_off, + LD_TIME_ACT_ON); + } +} + +void ipw_led_activity_on(struct ipw_priv *priv) +{ + unsigned long flags; + spin_lock_irqsave(&priv->lock, flags); + __ipw_led_activity_on(priv); + spin_unlock_irqrestore(&priv->lock, flags); +} + + +void ipw_led_activity_off(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + if (priv->config & CFG_NO_LED) + return; + + spin_lock_irqsave(&priv->lock, flags); + + if (priv->status & STATUS_LED_ACT_ON) { + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led &= priv->led_activity_off; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + IPW_DEBUG_LED("Activity LED Off\n"); + + priv->status &= ~STATUS_LED_ACT_ON; + } + + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_bg_led_activity_off(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_led_activity_off(data); + up(&priv->sem); +} + + +void ipw_led_band_on(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* Only nic type 1 supports mode LEDs */ + if (priv->config & CFG_NO_LED || + priv->nic_type != EEPROM_NIC_TYPE_1 || + !priv->assoc_network) + return; + + spin_lock_irqsave(&priv->lock, flags); + + led = ipw_read_reg32(priv, IPW_EVENT_REG); + if (priv->assoc_network->mode == IEEE_A) { + led |= priv->led_ofdm_on; + led &= priv->led_association_off; + IPW_DEBUG_LED("Mode LED On: 802.11a\n"); + } else if (priv->assoc_network->mode == IEEE_G) { + led |= priv->led_ofdm_on; + led |= priv->led_association_on; + IPW_DEBUG_LED("Mode LED On: 802.11g\n"); + } else { + led &= priv->led_ofdm_off; + led |= priv->led_association_on; + IPW_DEBUG_LED("Mode LED On: 802.11b\n"); + } + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + spin_unlock_irqrestore(&priv->lock, flags); +} + +void ipw_led_band_off(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* Only nic type 1 supports mode LEDs */ + if (priv->config & CFG_NO_LED || + priv->nic_type != EEPROM_NIC_TYPE_1) + return; + + spin_lock_irqsave(&priv->lock, flags); + + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led &= priv->led_ofdm_off; + led &= priv->led_association_off; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + spin_unlock_irqrestore(&priv->lock, flags); +} + +void ipw_led_radio_on(struct ipw_priv *priv) +{ + ipw_led_link_on(priv); +} + +void ipw_led_radio_off(struct ipw_priv *priv) +{ + ipw_led_activity_off(priv); + ipw_led_link_off(priv); +} + +void ipw_led_link_up(struct ipw_priv *priv) +{ + /* Set the Link Led on for all nic types */ + ipw_led_link_on(priv); +} + +void ipw_led_link_down(struct ipw_priv *priv) +{ + ipw_led_activity_off(priv); + ipw_led_link_off(priv); + + if (priv->status & STATUS_RF_KILL_MASK) + ipw_led_radio_off(priv); +} + +void ipw_led_init(struct ipw_priv *priv) +{ + priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE]; + + /* Set the default PINs for the link and activity leds */ + priv->led_activity_on = IPW_ACTIVITY_LED; + priv->led_activity_off = ~(IPW_ACTIVITY_LED); + + priv->led_association_on = IPW_ASSOCIATED_LED; + priv->led_association_off = ~(IPW_ASSOCIATED_LED); + + /* Set the default PINs for the OFDM leds */ + priv->led_ofdm_on = IPW_OFDM_LED; + priv->led_ofdm_off = ~(IPW_OFDM_LED); + + switch (priv->nic_type) { + case EEPROM_NIC_TYPE_1: + /* In this NIC type, the LEDs are reversed.... */ + priv->led_activity_on = IPW_ASSOCIATED_LED; + priv->led_activity_off = ~(IPW_ASSOCIATED_LED); + priv->led_association_on = IPW_ACTIVITY_LED; + priv->led_association_off = ~(IPW_ACTIVITY_LED); + + if (!(priv->config & CFG_NO_LED)) + ipw_led_band_on(priv); + + /* And we don't blink link LEDs for this nic, so + * just return here */ + return; + + case EEPROM_NIC_TYPE_3: + case EEPROM_NIC_TYPE_2: + case EEPROM_NIC_TYPE_4: + case EEPROM_NIC_TYPE_0: + break; + + default: + IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n", + priv->nic_type); + priv->nic_type = EEPROM_NIC_TYPE_0; + break; + } + + if (!(priv->config & CFG_NO_LED)) { + if (priv->status & STATUS_ASSOCIATED) + ipw_led_link_on(priv); + else + ipw_led_link_off(priv); + } +} + + +void ipw_led_shutdown(struct ipw_priv *priv) +{ + ipw_led_activity_off(priv); + ipw_led_link_off(priv); + ipw_led_band_off(priv); + cancel_delayed_work(&priv->led_link_on); + cancel_delayed_work(&priv->led_link_off); + cancel_delayed_work(&priv->led_act_off); +} + + +/* + * The following adds a new attribute to the sysfs representation + * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/) + * used for controling the debug level. + * + * See the level definitions in ipw for details. + */ +static ssize_t show_debug_level(struct device_driver *d, char *buf) +{ + return sprintf(buf, "0x%08X\n", ipw_debug_level); +} +static ssize_t store_debug_level(struct device_driver *d, const char *buf, + size_t count) +{ + char *p = (char *)buf; + u32 val; + + if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { + p++; + if (p[0] == 'x' || p[0] == 'X') + p++; + val = simple_strtoul(p, &p, 16); + } else + val = simple_strtoul(p, &p, 10); + if (p == buf) + printk(KERN_INFO DRV_NAME + ": %s is not in hex or decimal form.\n", buf); + else + ipw_debug_level = val; + + return strnlen(buf, count); +} + +static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, + show_debug_level, store_debug_level); + + +#define STAT_PRINT(b, x, y) sprintf(b, # x ": " y "\n", priv->x); + +static ssize_t show_stats(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + u32 len = 0; + len += STAT_PRINT(buf, last_rx_err, "%d"); + return len; +} +static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL); + + +static ssize_t show_scan_age(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "%d\n", priv->ieee->scan_age); +} + +static ssize_t store_scan_age(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); +#ifdef CONFIG_IPW_DEBUG + struct net_device *dev = priv->net_dev; +#endif + char buffer[] = "00000000"; + unsigned long len = + (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1; + unsigned long val; + char *p = buffer; + + IPW_DEBUG_INFO("enter\n"); + + strncpy(buffer, buf, len); + buffer[len] = 0; + + if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { + p++; + if (p[0] == 'x' || p[0] == 'X') + p++; + val = simple_strtoul(p, &p, 16); + } else + val = simple_strtoul(p, &p, 10); + if (p == buffer) { + IPW_DEBUG_INFO("%s: user supplied invalid value.\n", + dev->name); + } else { + priv->ieee->scan_age = val; + IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age); + } + + IPW_DEBUG_INFO("exit\n"); + return len; +} +static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age); + +static ssize_t show_led(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1); +} + +static ssize_t store_led(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + IPW_DEBUG_INFO("enter\n"); + + if (count == 0) + return 0; + + if (*buf == 0) { + IPW_DEBUG_LED("Disabling LED control.\n"); + priv->config |= CFG_NO_LED; + ipw_led_shutdown(priv); + } else { + IPW_DEBUG_LED("Enabling LED control.\n"); + priv->config &= ~CFG_NO_LED; + ipw_led_init(priv); + } + + IPW_DEBUG_INFO("exit\n"); + return count; +} +static DEVICE_ATTR(led, S_IWUSR|S_IRUGO, show_led, store_led); + + +static ssize_t show_status(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *p = (struct ipw_priv *)d->driver_data; + return sprintf(buf, "0x%08x\n", (int)p->status); +} +static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); + +static ssize_t show_cfg(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *p = (struct ipw_priv *)d->driver_data; + return sprintf(buf, "0x%08x\n", (int)p->config); +} +static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL); + +static ssize_t show_nic_type(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + return sprintf(buf, "TYPE: %d\n", priv->nic_type); +} +static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL); + +static ssize_t dump_error_log(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + char *p = (char *)buf; + + if (p[0] == '1') + ipw_dump_nic_error_log((struct ipw_priv*)d->driver_data); + + return strnlen(buf, count); +} +static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); + +static ssize_t dump_event_log(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + char *p = (char *)buf; + + if (p[0] == '1') + ipw_dump_nic_event_log((struct ipw_priv*)d->driver_data); + + return strnlen(buf, count); +} +static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); + +static ssize_t show_ucode_version(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u32 len = sizeof(u32), tmp = 0; + struct ipw_priv *p = (struct ipw_priv*)d->driver_data; + + if(ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len)) + return 0; + + return sprintf(buf, "0x%08x\n", tmp); +} +static DEVICE_ATTR(ucode_version, S_IWUSR|S_IRUGO, show_ucode_version, NULL); + +static ssize_t show_rtc(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u32 len = sizeof(u32), tmp = 0; + struct ipw_priv *p = (struct ipw_priv*)d->driver_data; + + if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len)) + return 0; + + return sprintf(buf, "0x%08x\n", tmp); +} +static DEVICE_ATTR(rtc, S_IWUSR|S_IRUGO, show_rtc, NULL); + +/* + * Add a device attribute to view/control the delay between eeprom + * operations. + */ +static ssize_t show_eeprom_delay(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + int n = ((struct ipw_priv*)d->driver_data)->eeprom_delay; + return sprintf(buf, "%i\n", n); +} +static ssize_t store_eeprom_delay(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *p = (struct ipw_priv*)d->driver_data; + sscanf(buf, "%i", &p->eeprom_delay); + return strnlen(buf, count); +} +static DEVICE_ATTR(eeprom_delay, S_IWUSR|S_IRUGO, + show_eeprom_delay, store_eeprom_delay); + +static ssize_t show_command_event_reg(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u32 reg = 0; + struct ipw_priv *p = (struct ipw_priv *)d->driver_data; + + reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT); + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t store_command_event_reg(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + u32 reg; + struct ipw_priv *p = (struct ipw_priv *)d->driver_data; + + sscanf(buf, "%x", ®); + ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg); + return strnlen(buf, count); +} +static DEVICE_ATTR(command_event_reg, S_IWUSR|S_IRUGO, + show_command_event_reg, store_command_event_reg); + +static ssize_t show_mem_gpio_reg(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u32 reg = 0; + struct ipw_priv *p = (struct ipw_priv *)d->driver_data; + + reg = ipw_read_reg32(p, 0x301100); + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t store_mem_gpio_reg(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + u32 reg; + struct ipw_priv *p = (struct ipw_priv *)d->driver_data; + + sscanf(buf, "%x", ®); + ipw_write_reg32(p, 0x301100, reg); + return strnlen(buf, count); +} +static DEVICE_ATTR(mem_gpio_reg, S_IWUSR|S_IRUGO, + show_mem_gpio_reg, store_mem_gpio_reg); + +static ssize_t show_indirect_dword(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u32 reg = 0; + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + if (priv->status & STATUS_INDIRECT_DWORD) + reg = ipw_read_reg32(priv, priv->indirect_dword); + else + reg = 0; + + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t store_indirect_dword(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + sscanf(buf, "%x", &priv->indirect_dword); + priv->status |= STATUS_INDIRECT_DWORD; + return strnlen(buf, count); +} +static DEVICE_ATTR(indirect_dword, S_IWUSR|S_IRUGO, + show_indirect_dword, store_indirect_dword); + +static ssize_t show_indirect_byte(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u8 reg = 0; + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + if (priv->status & STATUS_INDIRECT_BYTE) + reg = ipw_read_reg8(priv, priv->indirect_byte); + else + reg = 0; + + return sprintf(buf, "0x%02x\n", reg); +} +static ssize_t store_indirect_byte(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + sscanf(buf, "%x", &priv->indirect_byte); + priv->status |= STATUS_INDIRECT_BYTE; + return strnlen(buf, count); +} +static DEVICE_ATTR(indirect_byte, S_IWUSR|S_IRUGO, + show_indirect_byte, store_indirect_byte); + +static ssize_t show_direct_dword(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + u32 reg = 0; + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + if (priv->status & STATUS_DIRECT_DWORD) + reg = ipw_read32(priv, priv->direct_dword); + else + reg = 0; + + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t store_direct_dword(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + sscanf(buf, "%x", &priv->direct_dword); + priv->status |= STATUS_DIRECT_DWORD; + return strnlen(buf, count); +} +static DEVICE_ATTR(direct_dword, S_IWUSR|S_IRUGO, + show_direct_dword, store_direct_dword); + + +static inline int rf_kill_active(struct ipw_priv *priv) +{ + if (0 == (ipw_read32(priv, 0x30) & 0x10000)) + priv->status |= STATUS_RF_KILL_HW; + else + priv->status &= ~STATUS_RF_KILL_HW; + + return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0; +} + +static ssize_t show_rf_kill(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + /* 0 - RF kill not enabled + 1 - SW based RF kill active (sysfs) + 2 - HW based RF kill active + 3 - Both HW and SW baed RF kill active */ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) | + (rf_kill_active(priv) ? 0x2 : 0x0); + return sprintf(buf, "%i\n", val); +} + +static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio) +{ + if ((disable_radio ? 1 : 0) == + ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0)) + return 0 ; + + IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n", + disable_radio ? "OFF" : "ON"); + + if (disable_radio) { + priv->status |= STATUS_RF_KILL_SW; + + if (priv->workqueue) + cancel_delayed_work(&priv->request_scan); + queue_work(priv->workqueue, &priv->down); + } else { + priv->status &= ~STATUS_RF_KILL_SW; + if (rf_kill_active(priv)) { + IPW_DEBUG_RF_KILL("Can not turn radio back on - " + "disabled by HW switch\n"); + /* Make sure the RF_KILL check timer is running */ + cancel_delayed_work(&priv->rf_kill); + queue_delayed_work(priv->workqueue, &priv->rf_kill, + 2 * HZ); + } else + queue_work(priv->workqueue, &priv->up); + } + + return 1; +} + +static ssize_t store_rf_kill(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + + ipw_radio_kill_sw(priv, buf[0] == '1'); + + return count; +} +static DEVICE_ATTR(rf_kill, S_IWUSR|S_IRUGO, show_rf_kill, store_rf_kill); + +static ssize_t show_speed_scan(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + int pos = 0, len = 0; + if (priv->config & CFG_SPEED_SCAN) { + while (priv->speed_scan[pos] != 0) + len += sprintf(&buf[len], "%d ", + priv->speed_scan[pos++]); + return len + sprintf(&buf[len], "\n"); + } + + return sprintf(buf, "0\n"); +} + +static ssize_t store_speed_scan(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + int channel, pos = 0; + const char *p = buf; + + /* list of space separated channels to scan, optionally ending with 0 */ + while ((channel = simple_strtol(p, NULL, 0))) { + if (pos == MAX_SPEED_SCAN - 1) { + priv->speed_scan[pos] = 0; + break; + } + + if (ieee80211_is_valid_channel(priv->ieee, channel)) + priv->speed_scan[pos++] = channel; + else + IPW_WARNING("Skipping invalid channel request: %d\n", + channel); + p = strchr(p, ' '); + if (!p) + break; + while (*p == ' ' || *p == '\t') + p++; + } + + if (pos == 0) + priv->config &= ~CFG_SPEED_SCAN; + else { + priv->speed_scan_pos = 0; + priv->config |= CFG_SPEED_SCAN; + } + + return count; +} + +static DEVICE_ATTR(speed_scan, S_IWUSR|S_IRUGO, + show_speed_scan, store_speed_scan); + +static ssize_t show_net_stats(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + char *buf) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? + '1' : '0'); +} + +static ssize_t store_net_stats(struct device *d, +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12) + struct device_attribute *attr, +#endif + const char *buf, size_t count) +{ + struct ipw_priv *priv = (struct ipw_priv *)d->driver_data; + if (buf[0] == '1') + priv->config |= CFG_NET_STATS; + else + priv->config &= ~CFG_NET_STATS; + + return count; +} + +static DEVICE_ATTR(net_stats, S_IWUSR|S_IRUGO, + show_net_stats, store_net_stats); + +static void notify_wx_assoc_event(struct ipw_priv *priv) +{ + union iwreq_data wrqu; + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + if (priv->status & STATUS_ASSOCIATED) + memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN); + else + memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); + wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); +} + + +static void ipw_irq_tasklet(struct ipw_priv *priv) +{ + u32 inta, inta_mask, handled = 0; + unsigned long flags; + int rc = 0; + + spin_lock_irqsave(&priv->lock, flags); + + inta = ipw_read32(priv, IPW_INTA_RW); + inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); + inta &= (IPW_INTA_MASK_ALL & inta_mask); + + /* Add any cached INTA values that need to be handled */ + inta |= priv->isr_inta; + + /* handle all the justifications for the interrupt */ + if (inta & IPW_INTA_BIT_RX_TRANSFER) { + ipw_rx(priv); + handled |= IPW_INTA_BIT_RX_TRANSFER; + } + + if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) { + IPW_DEBUG_HC("Command completed.\n"); + rc = ipw_queue_tx_reclaim( priv, &priv->txq_cmd, -1); + priv->status &= ~STATUS_HCMD_ACTIVE; + wake_up_interruptible(&priv->wait_command_queue); + handled |= IPW_INTA_BIT_TX_CMD_QUEUE; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_1) { + IPW_DEBUG_TX("TX_QUEUE_1\n"); + rc = ipw_queue_tx_reclaim( priv, &priv->txq[0], 0); + handled |= IPW_INTA_BIT_TX_QUEUE_1; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_2) { + IPW_DEBUG_TX("TX_QUEUE_2\n"); + rc = ipw_queue_tx_reclaim( priv, &priv->txq[1], 1); + handled |= IPW_INTA_BIT_TX_QUEUE_2; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_3) { + IPW_DEBUG_TX("TX_QUEUE_3\n"); + rc = ipw_queue_tx_reclaim( priv, &priv->txq[2], 2); + handled |= IPW_INTA_BIT_TX_QUEUE_3; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_4) { + IPW_DEBUG_TX("TX_QUEUE_4\n"); + rc = ipw_queue_tx_reclaim( priv, &priv->txq[3], 3); + handled |= IPW_INTA_BIT_TX_QUEUE_4; + } + + if (inta & IPW_INTA_BIT_STATUS_CHANGE) { + IPW_WARNING("STATUS_CHANGE\n"); + handled |= IPW_INTA_BIT_STATUS_CHANGE; + } + + if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) { + IPW_WARNING("TX_PERIOD_EXPIRED\n"); + handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED; + } + + if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) { + IPW_WARNING("HOST_CMD_DONE\n"); + handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE; + } + + if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) { + IPW_WARNING("FW_INITIALIZATION_DONE\n"); + handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE; + } + + if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) { + IPW_WARNING("PHY_OFF_DONE\n"); + handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE; + } + + if (inta & IPW_INTA_BIT_RF_KILL_DONE) { + IPW_DEBUG_RF_KILL("RF_KILL_DONE\n"); + priv->status |= STATUS_RF_KILL_HW; + wake_up_interruptible(&priv->wait_command_queue); + priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); + cancel_delayed_work(&priv->request_scan); + schedule_work(&priv->link_down); + queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ); + handled |= IPW_INTA_BIT_RF_KILL_DONE; + } + + if (inta & IPW_INTA_BIT_FATAL_ERROR) { + IPW_ERROR("Firmware error detected. Restarting.\n"); +#ifdef CONFIG_IPW_DEBUG + if (ipw_debug_level & IPW_DL_FW_ERRORS) { + ipw_dump_nic_error_log(priv); + ipw_dump_nic_event_log(priv); + } +#endif + /* XXX: If hardware encryption is for WPA/WPA2, + * we have to notify the supplicant. */ + if (priv->ieee->sec.encrypt) { + priv->status &= ~STATUS_ASSOCIATED; + notify_wx_assoc_event(priv); + } + + /* Keep the restart process from trying to send host + * commands by clearing the INIT status bit */ + priv->status &= ~STATUS_INIT; + + /* Cancel currently queued command. */ + priv->status &= ~STATUS_HCMD_ACTIVE; + wake_up_interruptible(&priv->wait_command_queue); + + queue_work(priv->workqueue, &priv->adapter_restart); + handled |= IPW_INTA_BIT_FATAL_ERROR; + } + + if (inta & IPW_INTA_BIT_PARITY_ERROR) { + IPW_ERROR("Parity error\n"); + handled |= IPW_INTA_BIT_PARITY_ERROR; + } + + if (handled != inta) { + IPW_ERROR("Unhandled INTA bits 0x%08x\n", + inta & ~handled); + } + + /* enable all interrupts */ + ipw_enable_interrupts(priv); + + spin_unlock_irqrestore(&priv->lock, flags); +} + +#ifdef CONFIG_IPW_DEBUG +#define IPW_CMD(x) case IPW_CMD_ ## x : return #x +static char *get_cmd_string(u8 cmd) +{ + switch (cmd) { + IPW_CMD(HOST_COMPLETE); + IPW_CMD(POWER_DOWN); + IPW_CMD(SYSTEM_CONFIG); + IPW_CMD(MULTICAST_ADDRESS); + IPW_CMD(SSID); + IPW_CMD(ADAPTER_ADDRESS); + IPW_CMD(PORT_TYPE); + IPW_CMD(RTS_THRESHOLD); + IPW_CMD(FRAG_THRESHOLD); + IPW_CMD(POWER_MODE); + IPW_CMD(WEP_KEY); + IPW_CMD(TGI_TX_KEY); + IPW_CMD(SCAN_REQUEST); + IPW_CMD(SCAN_REQUEST_EXT); + IPW_CMD(ASSOCIATE); + IPW_CMD(SUPPORTED_RATES); + IPW_CMD(SCAN_ABORT); + IPW_CMD(TX_FLUSH); + IPW_CMD(QOS_PARAMETERS); + IPW_CMD(DINO_CONFIG); + IPW_CMD(RSN_CAPABILITIES); + IPW_CMD(RX_KEY); + IPW_CMD(CARD_DISABLE); + IPW_CMD(SEED_NUMBER); + IPW_CMD(TX_POWER); + IPW_CMD(COUNTRY_INFO); + IPW_CMD(AIRONET_INFO); + IPW_CMD(AP_TX_POWER); + IPW_CMD(CCKM_INFO); + IPW_CMD(CCX_VER_INFO); + IPW_CMD(SET_CALIBRATION); + IPW_CMD(SENSITIVITY_CALIB); + IPW_CMD(RETRY_LIMIT); + IPW_CMD(IPW_PRE_POWER_DOWN); + IPW_CMD(VAP_BEACON_TEMPLATE); + IPW_CMD(VAP_DTIM_PERIOD); + IPW_CMD(EXT_SUPPORTED_RATES); + IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT); + IPW_CMD(VAP_QUIET_INTERVALS); + IPW_CMD(VAP_CHANNEL_SWITCH); + IPW_CMD(VAP_MANDATORY_CHANNELS); + IPW_CMD(VAP_CELL_PWR_LIMIT); + IPW_CMD(VAP_CF_PARAM_SET); + IPW_CMD(VAP_SET_BEACONING_STATE); + IPW_CMD(MEASUREMENT); + IPW_CMD(POWER_CAPABILITY); + IPW_CMD(SUPPORTED_CHANNELS); + IPW_CMD(TPC_REPORT); + IPW_CMD(WME_INFO); + IPW_CMD(PRODUCTION_COMMAND); + default: + return "UNKNOWN"; + } +} +#endif + +#define HOST_COMPLETE_TIMEOUT HZ +static int ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd) +{ + int rc = 0; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + if (priv->status & STATUS_HCMD_ACTIVE) { + IPW_ERROR("Already sending a command\n"); + spin_unlock_irqrestore(&priv->lock, flags); + return -1; + } + + priv->status |= STATUS_HCMD_ACTIVE; + + IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n", + get_cmd_string(cmd->cmd), cmd->cmd, cmd->len, + priv->status); + printk_buf(IPW_DL_HOST_COMMAND, (u8*)cmd->param, cmd->len); + + rc = ipw_queue_tx_hcmd(priv, cmd->cmd, &cmd->param, cmd->len, 0); + if (rc) { + priv->status &= ~STATUS_HCMD_ACTIVE; + spin_unlock_irqrestore(&priv->lock, flags); + return rc; + } + spin_unlock_irqrestore(&priv->lock, flags); + + rc = wait_event_interruptible_timeout( + priv->wait_command_queue, !(priv->status & STATUS_HCMD_ACTIVE), + HOST_COMPLETE_TIMEOUT); + if (rc == 0) { + spin_lock_irqsave(&priv->lock, flags); + if (priv->status & STATUS_HCMD_ACTIVE) { + IPW_DEBUG_INFO("Command completion failed out after " + "%dms.\n", + 1000 * (HOST_COMPLETE_TIMEOUT / HZ)); + priv->status &= ~STATUS_HCMD_ACTIVE; + spin_unlock_irqrestore(&priv->lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&priv->lock, flags); + } + + if (priv->status & STATUS_RF_KILL_HW) { + IPW_DEBUG_INFO("Command aborted due to RF Kill Switch\n"); + return -EIO; + } + + return 0; +} + +static int ipw_send_host_complete(struct ipw_priv *priv) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_HOST_COMPLETE, + .len = 0 + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send HOST_COMPLETE command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_system_config(struct ipw_priv *priv, + struct ipw_sys_config *config) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SYSTEM_CONFIG, + .len = sizeof(*config) + }; + + if (!priv || !config) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, config, sizeof(*config)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SYSTEM_CONFIG command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_ssid(struct ipw_priv *priv, u8 *ssid, int len) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SSID, + .len = min(len, IW_ESSID_MAX_SIZE) + }; + + if (!priv || !ssid) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, ssid, cmd.len); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SSID command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_adapter_address(struct ipw_priv *priv, u8 *mac) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_ADAPTER_ADDRESS, + .len = ETH_ALEN + }; + + if (!priv || !mac) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + IPW_DEBUG_INFO("%s: Setting MAC to " MAC_FMT "\n", + priv->net_dev->name, MAC_ARG(mac)); + + memcpy(cmd.param, mac, ETH_ALEN); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send ADAPTER_ADDRESS command\n"); + return -1; + } + + return 0; +} + +/* + * NOTE: This must be executed from our workqueue as it results in udelay + * being called which may corrupt the keyboard if executed on default + * workqueue + */ +static void ipw_adapter_restart(void *adapter) +{ + struct ipw_priv *priv = adapter; + + if (priv->status & STATUS_RF_KILL_MASK) + return; + + ipw_down(priv); + + if (priv->assoc_network && + (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS)) + ipw_remove_current_network(priv); + + if (ipw_up(priv)) { + IPW_ERROR("Failed to up device\n"); + return; + } +} + +static void ipw_bg_adapter_restart(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_adapter_restart(data); + up(&priv->sem); +} + + + +#define IPW_SCAN_CHECK_WATCHDOG (5 * HZ) + +static void ipw_scan_check(void *data) +{ + struct ipw_priv *priv = data; + if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) { + IPW_DEBUG_SCAN("Scan completion watchdog resetting " + "adapter (%dms).\n", + IPW_SCAN_CHECK_WATCHDOG / 100); + queue_work(priv->workqueue, &priv->adapter_restart); + } +} + + +static void ipw_bg_scan_check(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_scan_check(data); + up(&priv->sem); +} + + +static int ipw_send_scan_request_ext(struct ipw_priv *priv, + struct ipw_scan_request_ext *request) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SCAN_REQUEST_EXT, + .len = sizeof(*request) + }; + + memcpy(cmd.param, request, sizeof(*request)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SCAN_REQUEST_EXT command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_scan_abort(struct ipw_priv *priv) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SCAN_ABORT, + .len = 0 + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SCAN_ABORT command\n"); + return -1; + } + + return 0; +} + +static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SENSITIVITY_CALIB, + .len = sizeof(struct ipw_sensitivity_calib) + }; + struct ipw_sensitivity_calib *calib = (struct ipw_sensitivity_calib *) + &cmd.param; + calib->beacon_rssi_raw = sens; + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SENSITIVITY CALIB command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_associate(struct ipw_priv *priv, + struct ipw_associate *associate) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_ASSOCIATE, + .len = sizeof(*associate) + }; + + struct ipw_associate tmp_associate; + memcpy(&tmp_associate, associate, sizeof(*associate)); + tmp_associate.policy_support = cpu_to_le16(tmp_associate.policy_support); + tmp_associate.assoc_tsf_msw = cpu_to_le32(tmp_associate.assoc_tsf_msw); + tmp_associate.assoc_tsf_lsw = cpu_to_le32(tmp_associate.assoc_tsf_lsw); + tmp_associate.capability = cpu_to_le16(tmp_associate.capability); + tmp_associate.listen_interval = cpu_to_le16(tmp_associate.listen_interval); + tmp_associate.beacon_interval = cpu_to_le16(tmp_associate.beacon_interval); + tmp_associate.atim_window = cpu_to_le16(tmp_associate.atim_window); + + if (!priv || !associate) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, &tmp_associate, sizeof(*associate)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send ASSOCIATE command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_supported_rates(struct ipw_priv *priv, + struct ipw_supported_rates *rates) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SUPPORTED_RATES, + .len = sizeof(*rates) + }; + + if (!priv || !rates) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, rates, sizeof(*rates)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SUPPORTED_RATES command\n"); + return -1; + } + + return 0; +} + +static int ipw_set_random_seed(struct ipw_priv *priv) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_SEED_NUMBER, + .len = sizeof(u32) + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + get_random_bytes(&cmd.param, sizeof(u32)); + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send SEED_NUMBER command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_CARD_DISABLE, + .len = sizeof(u32) + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + *((u32*)&cmd.param) = phy_off; + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send CARD_DISABLE command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_tx_power(struct ipw_priv *priv, + struct ipw_tx_power *power) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_TX_POWER, + .len = sizeof(*power) + }; + + if (!priv || !power) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, power, sizeof(*power)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send TX_POWER command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts) +{ + struct ipw_rts_threshold rts_threshold = { + .rts_threshold = rts, + }; + struct host_cmd cmd = { + .cmd = IPW_CMD_RTS_THRESHOLD, + .len = sizeof(rts_threshold) + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, &rts_threshold, sizeof(rts_threshold)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send RTS_THRESHOLD command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag) +{ + struct ipw_frag_threshold frag_threshold = { + .frag_threshold = frag, + }; + struct host_cmd cmd = { + .cmd = IPW_CMD_FRAG_THRESHOLD, + .len = sizeof(frag_threshold) + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, &frag_threshold, sizeof(frag_threshold)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send FRAG_THRESHOLD command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_POWER_MODE, + .len = sizeof(u32) + }; + u32 *param = (u32*)(&cmd.param); + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + /* If on battery, set to 3, if AC set to CAM, else user + * level */ + switch (mode) { + case IPW_POWER_BATTERY: + *param = IPW_POWER_INDEX_3; + break; + case IPW_POWER_AC: + *param = IPW_POWER_MODE_CAM; + break; + default: + *param = mode; + break; + } + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send POWER_MODE command\n"); + return -1; + } + + return 0; +} + +static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit) +{ + struct ipw_retry_limit retry_limit = { + .short_retry_limit = slimit, + .long_retry_limit = llimit + }; + struct host_cmd cmd = { + .cmd = IPW_CMD_RETRY_LIMIT, + .len = sizeof(retry_limit) + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, &retry_limit, sizeof(retry_limit)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send RETRY_LIMIT command\n"); + return -1; + } + + return 0; +} + +/* + * The IPW device contains a Microwire compatible EEPROM that stores + * various data like the MAC address. Usually the firmware has exclusive + * access to the eeprom, but during device initialization (before the + * device driver has sent the HostComplete command to the firmware) the + * device driver has read access to the EEPROM by way of indirect addressing + * through a couple of memory mapped registers. + * + * The following is a simplified implementation for pulling data out of the + * the eeprom, along with some helper functions to find information in + * the per device private data's copy of the eeprom. + * + * NOTE: To better understand how these functions work (i.e what is a chip + * select and why do have to keep driving the eeprom clock?), read + * just about any data sheet for a Microwire compatible EEPROM. + */ + +/* write a 32 bit value into the indirect accessor register */ +static inline void eeprom_write_reg(struct ipw_priv *p, u32 data) +{ + ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data); + + /* the eeprom requires some time to complete the operation */ + udelay(p->eeprom_delay); + + return; +} + +/* perform a chip select operation */ +static inline void eeprom_cs(struct ipw_priv* priv) +{ + eeprom_write_reg(priv,0); + eeprom_write_reg(priv,EEPROM_BIT_CS); + eeprom_write_reg(priv,EEPROM_BIT_CS|EEPROM_BIT_SK); + eeprom_write_reg(priv,EEPROM_BIT_CS); +} + +/* perform a chip select operation */ +static inline void eeprom_disable_cs(struct ipw_priv* priv) +{ + eeprom_write_reg(priv,EEPROM_BIT_CS); + eeprom_write_reg(priv,0); + eeprom_write_reg(priv,EEPROM_BIT_SK); +} + +/* push a single bit down to the eeprom */ +static inline void eeprom_write_bit(struct ipw_priv *p,u8 bit) +{ + int d = ( bit ? EEPROM_BIT_DI : 0); + eeprom_write_reg(p,EEPROM_BIT_CS|d); + eeprom_write_reg(p,EEPROM_BIT_CS|d|EEPROM_BIT_SK); +} + +/* push an opcode followed by an address down to the eeprom */ +static void eeprom_op(struct ipw_priv* priv, u8 op, u8 addr) +{ + int i; + + eeprom_cs(priv); + eeprom_write_bit(priv,1); + eeprom_write_bit(priv,op&2); + eeprom_write_bit(priv,op&1); + for ( i=7; i>=0; i-- ) { + eeprom_write_bit(priv,addr&(1<eeprom[EEPROM_MAC_ADDRESS], 6); +} + +/* + * Either the device driver (i.e. the host) or the firmware can + * load eeprom data into the designated region in SRAM. If neither + * happens then the FW will shutdown with a fatal error. + * + * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE + * bit needs region of shared SRAM needs to be non-zero. + */ +static void ipw_eeprom_init_sram(struct ipw_priv *priv) +{ + int i; + u16 *eeprom = (u16 *)priv->eeprom; + + IPW_DEBUG_TRACE(">>\n"); + + /* read entire contents of eeprom into private buffer */ + for ( i=0; i<128; i++ ) + eeprom[i] = le16_to_cpu(eeprom_read_u16(priv,(u8)i)); + + /* + If the data looks correct, then copy it to our private + copy. Otherwise let the firmware know to perform the operation + on it's own + */ + if ((priv->eeprom + EEPROM_VERSION) != 0) { + IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n"); + + /* write the eeprom data to sram */ + for( i=0; ieeprom[i]); + + /* Do not load eeprom data on fatal error or suspend */ + ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); + } else { + IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n"); + + /* Load eeprom data on fatal error or suspend */ + ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1); + } + + IPW_DEBUG_TRACE("<<\n"); +} + + +static inline void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count) +{ + count >>= 2; + if (!count) return; + _ipw_write32(priv, IPW_AUTOINC_ADDR, start); + while (count--) + _ipw_write32(priv, IPW_AUTOINC_DATA, 0); +} + +static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv) +{ + ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL, + CB_NUMBER_OF_ELEMENTS_SMALL * + sizeof(struct command_block)); +} + +static int ipw_fw_dma_enable(struct ipw_priv *priv) +{ /* start dma engine but no transfers yet*/ + + IPW_DEBUG_FW(">> : \n"); + + /* Start the dma */ + ipw_fw_dma_reset_command_blocks(priv); + + /* Write CB base address */ + ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL); + + IPW_DEBUG_FW("<< : \n"); + return 0; +} + +static void ipw_fw_dma_abort(struct ipw_priv *priv) +{ + u32 control = 0; + + IPW_DEBUG_FW(">> :\n"); + + //set the Stop and Abort bit + control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT; + ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); + priv->sram_desc.last_cb_index = 0; + + IPW_DEBUG_FW("<< \n"); +} + +static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index, struct command_block *cb) +{ + u32 address = IPW_SHARED_SRAM_DMA_CONTROL + (sizeof(struct command_block) * index); + IPW_DEBUG_FW(">> :\n"); + + ipw_write_indirect(priv, address, (u8*)cb, (int)sizeof(struct command_block)); + + IPW_DEBUG_FW("<< :\n"); + return 0; + +} + +static int ipw_fw_dma_kick(struct ipw_priv *priv) +{ + u32 control = 0; + u32 index=0; + + IPW_DEBUG_FW(">> :\n"); + + for (index = 0; index < priv->sram_desc.last_cb_index; index++) + ipw_fw_dma_write_command_block(priv, index, &priv->sram_desc.cb_list[index]); + + /* Enable the DMA in the CSR register */ + ipw_clear_bit(priv, IPW_RESET_REG,IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER); + + /* Set the Start bit. */ + control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START; + ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); + + IPW_DEBUG_FW("<< :\n"); + return 0; +} + +static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv) +{ + u32 address; + u32 register_value=0; + u32 cb_fields_address=0; + + IPW_DEBUG_FW(">> :\n"); + address = ipw_read_reg32(priv,IPW_DMA_I_CURRENT_CB); + IPW_DEBUG_FW_INFO("Current CB is 0x%x \n",address); + + /* Read the DMA Controlor register */ + register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL); + IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x \n",register_value); + + /* Print the CB values*/ + cb_fields_address = address; + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n",register_value); + + cb_fields_address += sizeof(u32); + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n",register_value); + + cb_fields_address += sizeof(u32); + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n", + register_value); + + cb_fields_address += sizeof(u32); + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n",register_value); + + IPW_DEBUG_FW(">> :\n"); +} + +static int ipw_fw_dma_command_block_index(struct ipw_priv *priv) +{ + u32 current_cb_address = 0; + u32 current_cb_index = 0; + + IPW_DEBUG_FW("<< :\n"); + current_cb_address= ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); + + current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL )/ + sizeof (struct command_block); + + IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n", + current_cb_index, current_cb_address ); + + IPW_DEBUG_FW(">> :\n"); + return current_cb_index; + +} + +static int ipw_fw_dma_add_command_block(struct ipw_priv *priv, + u32 src_address, + u32 dest_address, + u32 length, + int interrupt_enabled, + int is_last) +{ + + u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC | + CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG | + CB_DEST_SIZE_LONG; + struct command_block *cb; + u32 last_cb_element=0; + + IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n", + src_address, dest_address, length); + + if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL) + return -1; + + last_cb_element = priv->sram_desc.last_cb_index; + cb = &priv->sram_desc.cb_list[last_cb_element]; + priv->sram_desc.last_cb_index++; + + /* Calculate the new CB control word */ + if (interrupt_enabled ) + control |= CB_INT_ENABLED; + + if (is_last) + control |= CB_LAST_VALID; + + control |= length; + + /* Calculate the CB Element's checksum value */ + cb->status = control ^src_address ^dest_address; + + /* Copy the Source and Destination addresses */ + cb->dest_addr = dest_address; + cb->source_addr = src_address; + + /* Copy the Control Word last */ + cb->control = control; + + return 0; +} + +static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, + u32 src_phys, + u32 dest_address, + u32 length) +{ + u32 bytes_left = length; + u32 src_offset=0; + u32 dest_offset=0; + int status = 0; + IPW_DEBUG_FW(">> \n"); + IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n", + src_phys, dest_address, length); + while (bytes_left > CB_MAX_LENGTH) { + status = ipw_fw_dma_add_command_block( priv, + src_phys + src_offset, + dest_address + dest_offset, + CB_MAX_LENGTH, 0, 0); + if (status) { + IPW_DEBUG_FW_INFO(": Failed\n"); + return -1; + } else + IPW_DEBUG_FW_INFO(": Added new cb\n"); + + src_offset += CB_MAX_LENGTH; + dest_offset += CB_MAX_LENGTH; + bytes_left -= CB_MAX_LENGTH; + } + + /* add the buffer tail */ + if (bytes_left > 0) { + status = ipw_fw_dma_add_command_block( + priv, src_phys + src_offset, + dest_address + dest_offset, + bytes_left, 0, 0); + if (status) { + IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n"); + return -1; + } else + IPW_DEBUG_FW_INFO(": Adding new cb - the buffer tail\n"); + } + + + IPW_DEBUG_FW("<< \n"); + return 0; +} + +static int ipw_fw_dma_wait(struct ipw_priv *priv) +{ + u32 current_index = 0; + u32 watchdog = 0; + + IPW_DEBUG_FW(">> : \n"); + + current_index = ipw_fw_dma_command_block_index(priv); + IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%8X\n", + (int) priv->sram_desc.last_cb_index); + + while (current_index < priv->sram_desc.last_cb_index) { + udelay(50); + current_index = ipw_fw_dma_command_block_index(priv); + + watchdog++; + + if (watchdog > 400) { + IPW_DEBUG_FW_INFO("Timeout\n"); + ipw_fw_dma_dump_command_block(priv); + ipw_fw_dma_abort(priv); + return -1; + } + } + + ipw_fw_dma_abort(priv); + + /*Disable the DMA in the CSR register*/ + ipw_set_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER); + + IPW_DEBUG_FW("<< dmaWaitSync \n"); + return 0; +} + +static void ipw_remove_current_network(struct ipw_priv *priv) +{ + struct list_head *element, *safe; + struct ieee80211_network *network = NULL; + unsigned long flags; + + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_safe(element, safe, &priv->ieee->network_list) { + network = list_entry(element, struct ieee80211_network, list); + if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) { + list_del(element); + list_add_tail(&network->list, + &priv->ieee->network_free_list); + } + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); +} + +/** + * Check that card is still alive. + * Reads debug register from domain0. + * If card is present, pre-defined value should + * be found there. + * + * @param priv + * @return 1 if card is present, 0 otherwise + */ +static inline int ipw_alive(struct ipw_priv *priv) +{ + return ipw_read32(priv, 0x90) == 0xd55555d5; +} + +static inline int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask, + int timeout) +{ + int i = 0; + + do { + if ((ipw_read32(priv, addr) & mask) == mask) + return i; + mdelay(10); + i += 10; + } while (i < timeout); + + return -ETIME; +} + +/* These functions load the firmware and micro code for the operation of + * the ipw hardware. It assumes the buffer has all the bits for the + * image and the caller is handling the memory allocation and clean up. + */ + + +static int ipw_stop_master(struct ipw_priv * priv) +{ + int rc; + + IPW_DEBUG_TRACE(">> \n"); + /* stop master. typical delay - 0 */ + ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); + + rc = ipw_poll_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED, 100); + if (rc < 0) { + IPW_ERROR("stop master failed in 10ms\n"); + return -1; + } + + IPW_DEBUG_INFO("stop master %dms\n", rc); + + return rc; +} + +static void ipw_arc_release(struct ipw_priv *priv) +{ + IPW_DEBUG_TRACE(">> \n"); + mdelay(5); + + ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); + + /* no one knows timing, for safety add some delay */ + mdelay(5); +} + +struct fw_header { + u32 version; + u32 mode; +}; + +struct fw_chunk { + u32 address; + u32 length; +}; + +#define IPW_FW_MAJOR_VERSION 2 +#define IPW_FW_MINOR_VERSION 3 + +#define IPW_FW_MINOR(x) ((x & 0xff) >> 8) +#define IPW_FW_MAJOR(x) (x & 0xff) + +#define IPW_FW_VERSION ((IPW_FW_MINOR_VERSION << 8) | IPW_FW_MAJOR_VERSION) + +#define IPW_FW_PREFIX "ipw-" __stringify(IPW_FW_MAJOR_VERSION) \ +"." __stringify(IPW_FW_MINOR_VERSION) "-" + +#if IPW_FW_MAJOR_VERSION >= 2 && IPW_FW_MINOR_VERSION > 0 +#define IPW_FW_NAME(x) IPW_FW_PREFIX "" x ".fw" +#else +#define IPW_FW_NAME(x) "ipw2200_" x ".fw" +#endif + +static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, + size_t len) +{ + int rc = 0, i, addr; + u8 cr = 0; + u16 *image; + + image = (u16 *)data; + + IPW_DEBUG_TRACE(">> \n"); + + rc = ipw_stop_master(priv); + + if (rc < 0) + return rc; + +// spin_lock_irqsave(&priv->lock, flags); + + for (addr = IPW_SHARED_LOWER_BOUND; + addr < IPW_REGISTER_DOMAIN1_END; addr += 4) { + ipw_write32(priv, addr, 0); + } + + /* no ucode (yet) */ + memset(&priv->dino_alive, 0, sizeof(priv->dino_alive)); + /* destroy DMA queues */ + /* reset sequence */ + + ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET ,IPW_BIT_HALT_RESET_ON); + ipw_arc_release(priv); + ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF); + mdelay(1); + + /* reset PHY */ + ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN); + mdelay(1); + + ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0); + mdelay(1); + + /* enable ucode store */ + ipw_write_reg8(priv, DINO_CONTROL_REG, 0x0); + ipw_write_reg8(priv, DINO_CONTROL_REG, DINO_ENABLE_CS); + mdelay(1); + + /* write ucode */ + /** + * @bug + * Do NOT set indirect address register once and then + * store data to indirect data register in the loop. + * It seems very reasonable, but in this case DINO do not + * accept ucode. It is essential to set address each time. + */ + /* load new ipw uCode */ + for (i = 0; i < len / 2; i++) + ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE, + cpu_to_le16(image[i])); + + + /* enable DINO */ + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, + DINO_ENABLE_SYSTEM ); + + /* this is where the igx / win driver deveates from the VAP driver.*/ + + /* wait for alive response */ + for (i = 0; i < 100; i++) { + /* poll for incoming data */ + cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS); + if (cr & DINO_RXFIFO_DATA) + break; + mdelay(1); + } + + if (cr & DINO_RXFIFO_DATA) { + /* alive_command_responce size is NOT multiple of 4 */ + u32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4]; + + for (i = 0; i < ARRAY_SIZE(response_buffer); i++) + response_buffer[i] = + le32_to_cpu(ipw_read_reg32(priv, + IPW_BASEBAND_RX_FIFO_READ)); + memcpy(&priv->dino_alive, response_buffer, + sizeof(priv->dino_alive)); + if (priv->dino_alive.alive_command == 1 + && priv->dino_alive.ucode_valid == 1) { + rc = 0; + IPW_DEBUG_INFO( + "Microcode OK, rev. %d (0x%x) dev. %d (0x%x) " + "of %02d/%02d/%02d %02d:%02d\n", + priv->dino_alive.software_revision, + priv->dino_alive.software_revision, + priv->dino_alive.device_identifier, + priv->dino_alive.device_identifier, + priv->dino_alive.time_stamp[0], + priv->dino_alive.time_stamp[1], + priv->dino_alive.time_stamp[2], + priv->dino_alive.time_stamp[3], + priv->dino_alive.time_stamp[4]); + } else { + IPW_DEBUG_INFO("Microcode is not alive\n"); + rc = -EINVAL; + } + } else { + IPW_DEBUG_INFO("No alive response from DINO\n"); + rc = -ETIME; + } + + /* disable DINO, otherwise for some reason + firmware have problem getting alive resp. */ + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); + +// spin_unlock_irqrestore(&priv->lock, flags); + + return rc; +} + +static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, + size_t len) +{ + int rc = -1; + int offset = 0; + struct fw_chunk *chunk; + dma_addr_t shared_phys; + u8 *shared_virt; + + IPW_DEBUG_TRACE("<< : \n"); + shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys); + + if (!shared_virt) + return -ENOMEM; + + memmove(shared_virt, data, len); + + /* Start the Dma */ + rc = ipw_fw_dma_enable(priv); + + if (priv->sram_desc.last_cb_index > 0) { + /* the DMA is already ready this would be a bug. */ + BUG(); + goto out; + } + + do { + chunk = (struct fw_chunk *)(data + offset); + offset += sizeof(struct fw_chunk); + /* build DMA packet and queue up for sending */ + /* dma to chunk->address, the chunk->length bytes from data + + * offeset*/ + /* Dma loading */ + rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset, + le32_to_cpu(chunk->address), le32_to_cpu(chunk->length)); + if (rc) { + IPW_DEBUG_INFO("dmaAddBuffer Failed\n"); + goto out; + } + + offset += le32_to_cpu(chunk->length); + } while (offset < len); + + /* Run the DMA and wait for the answer*/ + rc = ipw_fw_dma_kick(priv); + if (rc) { + IPW_ERROR("dmaKick Failed\n"); + goto out; + } + + rc = ipw_fw_dma_wait(priv); + if (rc) { + IPW_ERROR("dmaWaitSync Failed\n"); + goto out; + } + out: + pci_free_consistent( priv->pci_dev, len, shared_virt, shared_phys); + return rc; +} + +/* stop nic */ +static int ipw_stop_nic(struct ipw_priv *priv) +{ + int rc = 0; + + /* stop*/ + ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); + + rc = ipw_poll_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED, 500); + if (rc < 0) { + IPW_ERROR("wait for reg master disabled failed\n"); + return rc; + } + + ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); + + return rc; +} + +static void ipw_start_nic(struct ipw_priv *priv) +{ + IPW_DEBUG_TRACE(">>\n"); + + /* prvHwStartNic release ARC*/ + ipw_clear_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED | + IPW_RESET_REG_STOP_MASTER | + CBD_RESET_REG_PRINCETON_RESET); + + /* enable power management */ + ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY); + + IPW_DEBUG_TRACE("<<\n"); +} + +static int ipw_init_nic(struct ipw_priv *priv) +{ + int rc; + + IPW_DEBUG_TRACE(">>\n"); + /* reset */ + /*prvHwInitNic */ + /* set "initialization complete" bit to move adapter to D0 state */ + ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); + + /* low-level PLL activation */ + ipw_write32(priv, IPW_READ_INT_REGISTER, + IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER); + + /* wait for clock stabilization */ + rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW, + IPW_GP_CNTRL_BIT_CLOCK_READY, 250); + if (rc < 0 ) + IPW_DEBUG_INFO("FAILED wait for clock stablization\n"); + + /* assert SW reset */ + ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET); + + udelay(10); + + /* set "initialization complete" bit to move adapter to D0 state */ + ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); + + IPW_DEBUG_TRACE(">>\n"); + return 0; +} + + +/* Call this function from process context, it will sleep in request_firmware. + * Probe is an ok place to call this from. + */ +static int ipw_reset_nic(struct ipw_priv *priv) +{ + int rc = 0; + unsigned long flags; + + IPW_DEBUG_TRACE(">>\n"); + + rc = ipw_init_nic(priv); + + spin_lock_irqsave(&priv->lock, flags); + /* Clear the 'host command active' bit... */ + priv->status &= ~STATUS_HCMD_ACTIVE; + wake_up_interruptible(&priv->wait_command_queue); + priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); + wake_up_interruptible(&priv->wait_state); + spin_unlock_irqrestore(&priv->lock, flags); + + IPW_DEBUG_TRACE("<<\n"); + return rc; +} + +static int ipw_get_fw(struct ipw_priv *priv, + const struct firmware **fw, const char *name) +{ + struct fw_header *header; + int rc; + + /* ask firmware_class module to get the boot firmware off disk */ + rc = request_firmware(fw, name, &priv->pci_dev->dev); + if (rc < 0) { + IPW_ERROR("%s load failed: Reason %d\n", name, rc); + return rc; + } + + header = (struct fw_header *)(*fw)->data; + if (IPW_FW_MAJOR(le32_to_cpu(header->version)) != IPW_FW_MAJOR_VERSION) { + IPW_ERROR("'%s' firmware version not compatible (%d != %d)\n", + name, + IPW_FW_MAJOR(le32_to_cpu(header->version)), IPW_FW_MAJOR_VERSION); + return -EINVAL; + } + + IPW_DEBUG_INFO("Loading firmware '%s' file v%d.%d (%zd bytes)\n", + name, + IPW_FW_MAJOR(le32_to_cpu(header->version)), + IPW_FW_MINOR(le32_to_cpu(header->version)), + (*fw)->size - sizeof(struct fw_header)); + return 0; +} + +#define IPW_RX_BUF_SIZE (3000) + +static inline void ipw_rx_queue_reset(struct ipw_priv *priv, + struct ipw_rx_queue *rxq) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&rxq->lock, flags); + + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { + /* In the reset function, these buffers may have been allocated + * to an SKB, so we need to unmap and free potential storage */ + if (rxq->pool[i].skb != NULL) { + pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr, + IPW_RX_BUF_SIZE, + PCI_DMA_FROMDEVICE); + dev_kfree_skb(rxq->pool[i].skb); + rxq->pool[i].skb = NULL; + } + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + } + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->processed = RX_QUEUE_SIZE - 1; + rxq->free_count = 0; + spin_unlock_irqrestore(&rxq->lock, flags); +} + +#ifdef CONFIG_PM +static int fw_loaded = 0; +static const struct firmware *bootfw = NULL; +static const struct firmware *firmware = NULL; +static const struct firmware *ucode = NULL; + +static void free_firmware(void) +{ + if (fw_loaded) { + release_firmware(bootfw); + release_firmware(ucode); + release_firmware(firmware); + bootfw = ucode = firmware = NULL; + fw_loaded = 0; + } +} +#else +#define free_firmware() do {} while (0) +#endif + + +static int ipw_load(struct ipw_priv *priv) +{ +#ifndef CONFIG_PM + const struct firmware *bootfw = NULL; + const struct firmware *firmware = NULL; + const struct firmware *ucode = NULL; +#endif + int rc = 0, retries = 3; + +#ifdef CONFIG_PM + if (!fw_loaded) { +#endif + rc = ipw_get_fw(priv, &bootfw, IPW_FW_NAME("boot")); + if (rc) + goto error; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + rc = ipw_get_fw(priv, &ucode, + IPW_FW_NAME("ibss_ucode")); + if (rc) + goto error; + + rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("ibss")); + break; + +#ifdef CONFIG_IPW2200_MONITOR + case IW_MODE_MONITOR: + rc = ipw_get_fw(priv, &ucode, + IPW_FW_NAME("sniffer_ucode")); + if (rc) + goto error; + + rc = ipw_get_fw(priv, &firmware, + IPW_FW_NAME("sniffer")); + break; +#endif + case IW_MODE_INFRA: + rc = ipw_get_fw(priv, &ucode, + IPW_FW_NAME("bss_ucode")); + if (rc) + goto error; + + rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("bss")); + break; + + default: + rc = -EINVAL; + } + + if (rc) + goto error; + +#ifdef CONFIG_PM + fw_loaded = 1; + } +#endif + + if (!priv->rxq) + priv->rxq = ipw_rx_queue_alloc(priv); + else + ipw_rx_queue_reset(priv, priv->rxq); + if (!priv->rxq) { + IPW_ERROR("Unable to initialize Rx queue\n"); + goto error; + } + + retry: + /* Ensure interrupts are disabled */ + ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); + priv->status &= ~STATUS_INT_ENABLED; + + /* ack pending interrupts */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); + + ipw_stop_nic(priv); + + rc = ipw_reset_nic(priv); + if (rc) { + IPW_ERROR("Unable to reset NIC\n"); + goto error; + } + + ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND, + IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND); + + /* DMA the initial boot firmware into the device */ + rc = ipw_load_firmware(priv, bootfw->data + sizeof(struct fw_header), + bootfw->size - sizeof(struct fw_header)); + if (rc < 0) { + IPW_ERROR("Unable to load boot firmware\n"); + goto error; + } + + /* kick start the device */ + ipw_start_nic(priv); + + /* wait for the device to finish it's initial startup sequence */ + rc = ipw_poll_bit(priv, IPW_INTA_RW, + IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); + if (rc < 0) { + IPW_ERROR("device failed to boot initial fw image\n"); + goto error; + } + IPW_DEBUG_INFO("initial device response after %dms\n", rc); + + /* ack fw init done interrupt */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); + + /* DMA the ucode into the device */ + rc = ipw_load_ucode(priv, ucode->data + sizeof(struct fw_header), + ucode->size - sizeof(struct fw_header)); + if (rc < 0) { + IPW_ERROR("Unable to load ucode\n"); + goto error; + } + + /* stop nic */ + ipw_stop_nic(priv); + + /* DMA bss firmware into the device */ + rc = ipw_load_firmware(priv, firmware->data + + sizeof(struct fw_header), + firmware->size - sizeof(struct fw_header)); + if (rc < 0 ) { + IPW_ERROR("Unable to load firmware\n"); + goto error; + } + + ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); + + rc = ipw_queue_reset(priv); + if (rc) { + IPW_ERROR("Unable to initialize queues\n"); + goto error; + } + + /* Ensure interrupts are disabled */ + ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); + /* ack pending interrupts */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); + + + /* kick start the device */ + ipw_start_nic(priv); + + if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) { + if (retries > 0) { + IPW_WARNING("Parity error. Retrying init.\n"); + retries--; + goto retry; + } + + IPW_ERROR("TODO: Handle parity error -- schedule restart?\n"); + rc = -EIO; + goto error; + } + + /* wait for the device */ + rc = ipw_poll_bit(priv, IPW_INTA_RW, + IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); + if (rc < 0) { + IPW_ERROR("device failed to start after 500ms\n"); + goto error; + } + IPW_DEBUG_INFO("device response after %dms\n", rc); + + /* ack fw init done interrupt */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); + + /* read eeprom data and initialize the eeprom region of sram */ + priv->eeprom_delay = 1; + ipw_eeprom_init_sram(priv); + + /* enable interrupts */ + ipw_enable_interrupts(priv); + + /* Ensure our queue has valid packets */ + ipw_rx_queue_replenish(priv); + + ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read); + + /* ack pending interrupts */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); + +#ifndef CONFIG_PM + release_firmware(bootfw); + release_firmware(ucode); + release_firmware(firmware); +#endif + return 0; + + error: + if (priv->rxq) { + ipw_rx_queue_free(priv, priv->rxq); + priv->rxq = NULL; + } + ipw_tx_queue_free(priv); + if (bootfw) + release_firmware(bootfw); + if (ucode) + release_firmware(ucode); + if (firmware) + release_firmware(firmware); +#ifdef CONFIG_PM + fw_loaded = 0; + bootfw = ucode = firmware = NULL; +#endif + + return rc; +} + +/** + * DMA services + * + * Theory of operation + * + * A queue is a circular buffers with 'Read' and 'Write' pointers. + * 2 empty entries always kept in the buffer to protect from overflow. + * + * For Tx queue, there are low mark and high mark limits. If, after queuing + * the packet for Tx, free space become < low mark, Tx queue stopped. When + * reclaiming packets (on 'tx done IRQ), if free space become > high mark, + * Tx queue resumed. + * + * The IPW operates with six queues, one receive queue in the device's + * sram, one transmit queue for sending commands to the device firmware, + * and four transmit queues for data. + * + * The four transmit queues allow for performing quality of service (qos) + * transmissions as per the 802.11 protocol. Currently Linux does not + * provide a mechanism to the user for utilizing prioritized queues, so + * we only utilize the first data transmit queue (queue1). + */ + +/** + * Driver allocates buffers of this size for Rx + */ + +static inline int ipw_queue_space(const struct clx2_queue *q) +{ + int s = q->last_used - q->first_empty; + if (s <= 0) + s += q->n_bd; + s -= 2; /* keep some reserve to not confuse empty and full situations */ + if (s < 0) + s = 0; + return s; +} + +static inline int ipw_queue_inc_wrap(int index, int n_bd) +{ + return (++index == n_bd) ? 0 : index; +} + +/** + * Initialize common DMA queue structure + * + * @param q queue to init + * @param count Number of BD's to allocate. Should be power of 2 + * @param read_register Address for 'read' register + * (not offset within BAR, full address) + * @param write_register Address for 'write' register + * (not offset within BAR, full address) + * @param base_register Address for 'base' register + * (not offset within BAR, full address) + * @param size Address for 'size' register + * (not offset within BAR, full address) + */ +static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q, + int count, u32 read, u32 write, + u32 base, u32 size) +{ + q->n_bd = count; + + q->low_mark = q->n_bd / 4; + if (q->low_mark < 4) + q->low_mark = 4; + + q->high_mark = q->n_bd / 8; + if (q->high_mark < 2) + q->high_mark = 2; + + q->first_empty = q->last_used = 0; + q->reg_r = read; + q->reg_w = write; + + ipw_write32(priv, base, q->dma_addr); + ipw_write32(priv, size, count); + ipw_write32(priv, read, 0); + ipw_write32(priv, write, 0); + + _ipw_read32(priv, 0x90); +} + +static int ipw_queue_tx_init(struct ipw_priv *priv, + struct clx2_tx_queue *q, + int count, u32 read, u32 write, + u32 base, u32 size) +{ + struct pci_dev *dev = priv->pci_dev; + + q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL); + if (!q->txb) { + IPW_ERROR("vmalloc for auxilary BD structures failed\n"); + return -ENOMEM; + } + + q->bd = pci_alloc_consistent(dev,sizeof(q->bd[0])*count, &q->q.dma_addr); + if (!q->bd) { + IPW_ERROR("pci_alloc_consistent(%zd) failed\n", + sizeof(q->bd[0]) * count); + kfree(q->txb); + q->txb = NULL; + return -ENOMEM; + } + + ipw_queue_init(priv, &q->q, count, read, write, base, size); + return 0; +} + +/** + * Free one TFD, those at index [txq->q.last_used]. + * Do NOT advance any indexes + * + * @param dev + * @param txq + */ +static void ipw_queue_tx_free_tfd(struct ipw_priv *priv, + struct clx2_tx_queue *txq) +{ + struct tfd_frame *bd = &txq->bd[txq->q.last_used]; + struct pci_dev *dev = priv->pci_dev; + int i; + + /* classify bd */ + if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE) + /* nothing to cleanup after for host commands */ + return; + + /* sanity check */ + if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) { + IPW_ERROR("Too many chunks: %i\n", le32_to_cpu(bd->u.data.num_chunks)); + /** @todo issue fatal error, it is quite serious situation */ + return; + } + + /* unmap chunks if any */ + for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) { + pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]), + le16_to_cpu(bd->u.data.chunk_len[i]), PCI_DMA_TODEVICE); + if (txq->txb[txq->q.last_used]) { + ieee80211_txb_free(txq->txb[txq->q.last_used]); + txq->txb[txq->q.last_used] = NULL; + } + } +} + +/** + * Deallocate DMA queue. + * + * Empty queue by removing and destroying all BD's. + * Free all buffers. + * + * @param dev + * @param q + */ +static void ipw_queue_tx_free(struct ipw_priv *priv, + struct clx2_tx_queue *txq) +{ + struct clx2_queue *q = &txq->q; + struct pci_dev *dev = priv->pci_dev; + + if (q->n_bd == 0) + return; + + /* first, empty all BD's */ + for (; q->first_empty != q->last_used; + q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { + ipw_queue_tx_free_tfd(priv, txq); + } + + /* free buffers belonging to queue itself */ + pci_free_consistent(dev, sizeof(txq->bd[0])*q->n_bd, txq->bd, + q->dma_addr); + kfree(txq->txb); + + /* 0 fill whole structure */ + memset(txq, 0, sizeof(*txq)); +} + + +/** + * Destroy all DMA queues and structures + * + * @param priv + */ +static void ipw_tx_queue_free(struct ipw_priv *priv) +{ + /* Tx CMD queue */ + ipw_queue_tx_free(priv, &priv->txq_cmd); + + /* Tx queues */ + ipw_queue_tx_free(priv, &priv->txq[0]); + ipw_queue_tx_free(priv, &priv->txq[1]); + ipw_queue_tx_free(priv, &priv->txq[2]); + ipw_queue_tx_free(priv, &priv->txq[3]); +} + +static void inline __maybe_wake_tx(struct ipw_priv *priv) +{ + if (netif_running(priv->net_dev)) { + switch (priv->port_type) { + case DCR_TYPE_MU_BSS: + case DCR_TYPE_MU_IBSS: + if (!(priv->status & STATUS_ASSOCIATED)) + return; + } + netif_wake_queue(priv->net_dev); + } + +} + +static inline void ipw_create_bssid(struct ipw_priv *priv, u8 *bssid) +{ + /* First 3 bytes are manufacturer */ + bssid[0] = priv->mac_addr[0]; + bssid[1] = priv->mac_addr[1]; + bssid[2] = priv->mac_addr[2]; + + /* Last bytes are random */ + get_random_bytes(&bssid[3], ETH_ALEN-3); + + bssid[0] &= 0xfe; /* clear multicast bit */ + bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */ +} + +static inline u8 ipw_add_station(struct ipw_priv *priv, u8 *bssid) +{ + struct ipw_station_entry entry; + int i; + + for (i = 0; i < priv->num_stations; i++) { + if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) { + /* Another node is active in network */ + priv->missed_adhoc_beacons = 0; + if (!(priv->config & CFG_STATIC_CHANNEL)) + /* when other nodes drop out, we drop out */ + priv->config &= ~CFG_ADHOC_PERSIST; + + return i; + } + } + + if (i == MAX_STATIONS) + return IPW_INVALID_STATION; + + IPW_DEBUG_SCAN("Adding AdHoc station: " MAC_FMT "\n", MAC_ARG(bssid)); + + entry.reserved = 0; + entry.support_mode = 0; + memcpy(entry.mac_addr, bssid, ETH_ALEN); + memcpy(priv->stations[i], bssid, ETH_ALEN); + ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry), + &entry, + sizeof(entry)); + priv->num_stations++; + + return i; +} + +static inline u8 ipw_find_station(struct ipw_priv *priv, u8 *bssid) +{ + int i; + + for (i = 0; i < priv->num_stations; i++) + if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) + return i; + + return IPW_INVALID_STATION; +} + +static void ipw_send_disassociate(struct ipw_priv *priv, int quiet) +{ + int err; + + if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))) { + IPW_DEBUG_ASSOC("Disassociating while not associated.\n"); + return; + } + + IPW_DEBUG_ASSOC("Disassocation attempt from " MAC_FMT " " + "on channel %d.\n", + MAC_ARG(priv->assoc_request.bssid), + priv->assoc_request.channel); + + priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED); + priv->status |= STATUS_DISASSOCIATING; + + if (quiet) + priv->assoc_request.assoc_type = HC_DISASSOC_QUIET; + else + priv->assoc_request.assoc_type = HC_DISASSOCIATE; + err = ipw_send_associate(priv, &priv->assoc_request); + if (err) { + IPW_DEBUG_HC("Attempt to send [dis]associate command " + "failed.\n"); + return; + } + +} + +static int ipw_disassociate(void *data) +{ + struct ipw_priv *priv = data; + if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) + return 0; + ipw_send_disassociate(data, 0); + return 1; +} + +static void ipw_bg_disassociate(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_disassociate(data); + up(&priv->sem); +} + +static void ipw_system_config(void *data) +{ + struct ipw_priv *priv = data; + ipw_send_system_config(priv, &priv->sys_config); +} + +struct ipw_status_code { + u16 status; + const char *reason; +}; + +static const struct ipw_status_code ipw_status_codes[] = { + {0x00, "Successful"}, + {0x01, "Unspecified failure"}, + {0x0A, "Cannot support all requested capabilities in the " + "Capability information field"}, + {0x0B, "Reassociation denied due to inability to confirm that " + "association exists"}, + {0x0C, "Association denied due to reason outside the scope of this " + "standard"}, + {0x0D, "Responding station does not support the specified authentication " + "algorithm"}, + {0x0E, "Received an Authentication frame with authentication sequence " + "transaction sequence number out of expected sequence"}, + {0x0F, "Authentication rejected because of challenge failure"}, + {0x10, "Authentication rejected due to timeout waiting for next " + "frame in sequence"}, + {0x11, "Association denied because AP is unable to handle additional " + "associated stations"}, + {0x12, "Association denied due to requesting station not supporting all " + "of the datarates in the BSSBasicServiceSet Parameter"}, + {0x13, "Association denied due to requesting station not supporting " + "short preamble operation"}, + {0x14, "Association denied due to requesting station not supporting " + "PBCC encoding"}, + {0x15, "Association denied due to requesting station not supporting " + "channel agility"}, + {0x19, "Association denied due to requesting station not supporting " + "short slot operation"}, + {0x1A, "Association denied due to requesting station not supporting " + "DSSS-OFDM operation"}, + {0x28, "Invalid Information Element"}, + {0x29, "Group Cipher is not valid"}, + {0x2A, "Pairwise Cipher is not valid"}, + {0x2B, "AKMP is not valid"}, + {0x2C, "Unsupported RSN IE version"}, + {0x2D, "Invalid RSN IE Capabilities"}, + {0x2E, "Cipher suite is rejected per security policy"}, +}; + +#ifdef CONFIG_IPW_DEBUG +static const char *ipw_get_status_code(u16 status) +{ + int i; + for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++) + if (ipw_status_codes[i].status == (status & 0xff)) + return ipw_status_codes[i].reason; + return "Unknown status value."; +} +#endif + +static void inline average_init(struct average *avg) +{ + memset(avg, 0, sizeof(*avg)); +} + +static void inline average_add(struct average *avg, s16 val) +{ + avg->sum -= avg->entries[avg->pos]; + avg->sum += val; + avg->entries[avg->pos++] = val; + if (unlikely(avg->pos == AVG_ENTRIES)) { + avg->init = 1; + avg->pos = 0; + } +} + +static s16 inline average_value(struct average *avg) +{ + if (!unlikely(avg->init)) { + if (avg->pos) + return avg->sum / avg->pos; + return 0; + } + + return avg->sum / AVG_ENTRIES; +} + +static void ipw_reset_stats(struct ipw_priv *priv) +{ + u32 len = sizeof(u32); + + priv->quality = 0; + + average_init(&priv->average_missed_beacons); + average_init(&priv->average_rssi); + average_init(&priv->average_noise); + + priv->last_rate = 0; + priv->last_missed_beacons = 0; + priv->last_rx_packets = 0; + priv->last_tx_packets = 0; + priv->last_tx_failures = 0; + + /* Firmware managed, reset only when NIC is restarted, so we have to + * normalize on the current value */ + ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, + &priv->last_rx_err, &len); + ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, + &priv->last_tx_failures, &len); + + /* Driver managed, reset with each association */ + priv->missed_adhoc_beacons = 0; + priv->missed_beacons = 0; + priv->tx_packets = 0; + priv->rx_packets = 0; + +} + + +static inline u32 ipw_get_max_rate(struct ipw_priv *priv) +{ + u32 i = 0x80000000; + u32 mask = priv->rates_mask; + /* If currently associated in B mode, restrict the maximum + * rate match to B rates */ + if (priv->assoc_request.ieee_mode == IPW_B_MODE) + mask &= IEEE80211_CCK_RATES_MASK; + + /* TODO: Verify that the rate is supported by the current rates + * list. */ + + while (i && !(mask & i)) i >>= 1; + switch (i) { + case IEEE80211_CCK_RATE_1MB_MASK: return 1000000; + case IEEE80211_CCK_RATE_2MB_MASK: return 2000000; + case IEEE80211_CCK_RATE_5MB_MASK: return 5500000; + case IEEE80211_OFDM_RATE_6MB_MASK: return 6000000; + case IEEE80211_OFDM_RATE_9MB_MASK: return 9000000; + case IEEE80211_CCK_RATE_11MB_MASK: return 11000000; + case IEEE80211_OFDM_RATE_12MB_MASK: return 12000000; + case IEEE80211_OFDM_RATE_18MB_MASK: return 18000000; + case IEEE80211_OFDM_RATE_24MB_MASK: return 24000000; + case IEEE80211_OFDM_RATE_36MB_MASK: return 36000000; + case IEEE80211_OFDM_RATE_48MB_MASK: return 48000000; + case IEEE80211_OFDM_RATE_54MB_MASK: return 54000000; + } + + if (priv->ieee->mode == IEEE_B) + return 11000000; + else + return 54000000; +} + +static u32 ipw_get_current_rate(struct ipw_priv *priv) +{ + u32 rate, len = sizeof(rate); + int err; + + if (!(priv->status & STATUS_ASSOCIATED)) + return 0; + + if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) { + err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate, + &len); + if (err) { + IPW_DEBUG_INFO("failed querying ordinals.\n"); + return 0; + } + } else + return ipw_get_max_rate(priv); + + switch (rate) { + case IPW_TX_RATE_1MB: return 1000000; + case IPW_TX_RATE_2MB: return 2000000; + case IPW_TX_RATE_5MB: return 5500000; + case IPW_TX_RATE_6MB: return 6000000; + case IPW_TX_RATE_9MB: return 9000000; + case IPW_TX_RATE_11MB: return 11000000; + case IPW_TX_RATE_12MB: return 12000000; + case IPW_TX_RATE_18MB: return 18000000; + case IPW_TX_RATE_24MB: return 24000000; + case IPW_TX_RATE_36MB: return 36000000; + case IPW_TX_RATE_48MB: return 48000000; + case IPW_TX_RATE_54MB: return 54000000; + } + + return 0; +} + +#define IPW_STATS_INTERVAL (2 * HZ) +static void ipw_gather_stats(struct ipw_priv *priv) +{ + u32 rx_err, rx_err_delta, rx_packets_delta; + u32 tx_failures, tx_failures_delta, tx_packets_delta; + u32 missed_beacons_percent, missed_beacons_delta; + u32 quality = 0; + u32 len = sizeof(u32); + s16 rssi; + u32 beacon_quality, signal_quality, tx_quality, rx_quality, + rate_quality; + u32 max_rate; + + if (!(priv->status & STATUS_ASSOCIATED)) { + priv->quality = 0; + return; + } + + /* Update the statistics */ + ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS, + &priv->missed_beacons, &len); + missed_beacons_delta = priv->missed_beacons - + priv->last_missed_beacons; + priv->last_missed_beacons = priv->missed_beacons; + if (priv->assoc_request.beacon_interval) { + missed_beacons_percent = missed_beacons_delta * + (HZ * priv->assoc_request.beacon_interval) / + (IPW_STATS_INTERVAL * 10); + } else { + missed_beacons_percent = 0; + } + average_add(&priv->average_missed_beacons, missed_beacons_percent); + + ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len); + rx_err_delta = rx_err - priv->last_rx_err; + priv->last_rx_err = rx_err; + + ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len); + tx_failures_delta = tx_failures - priv->last_tx_failures; + priv->last_tx_failures = tx_failures; + + rx_packets_delta = priv->rx_packets - priv->last_rx_packets; + priv->last_rx_packets = priv->rx_packets; + + tx_packets_delta = priv->tx_packets - priv->last_tx_packets; + priv->last_tx_packets = priv->tx_packets; + + /* Calculate quality based on the following: + * + * Missed beacon: 100% = 0, 0% = 70% missed + * Rate: 60% = 1Mbs, 100% = Max + * Rx and Tx errors represent a straight % of total Rx/Tx + * RSSI: 100% = > -50, 0% = < -80 + * Rx errors: 100% = 0, 0% = 50% missed + * + * The lowest computed quality is used. + * + */ +#define BEACON_THRESHOLD 5 + beacon_quality = 100 - missed_beacons_percent; + if (beacon_quality < BEACON_THRESHOLD) + beacon_quality = 0; + else + beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 / + (100 - BEACON_THRESHOLD); + IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n", + beacon_quality, missed_beacons_percent); + + priv->last_rate = ipw_get_current_rate(priv); + max_rate = ipw_get_max_rate(priv); + rate_quality = priv->last_rate * 40 / max_rate + 60; + IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n", + rate_quality, priv->last_rate / 1000000); + + if (rx_packets_delta > 100 && + rx_packets_delta + rx_err_delta) + rx_quality = 100 - (rx_err_delta * 100) / + (rx_packets_delta + rx_err_delta); + else + rx_quality = 100; + IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n", + rx_quality, rx_err_delta, rx_packets_delta); + + if (tx_packets_delta > 100 && + tx_packets_delta + tx_failures_delta) + tx_quality = 100 - (tx_failures_delta * 100) / + (tx_packets_delta + tx_failures_delta); + else + tx_quality = 100; + IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n", + tx_quality, tx_failures_delta, tx_packets_delta); + + rssi = average_value(&priv->average_rssi); + signal_quality = + (100 * + (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * + (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) - + (priv->ieee->perfect_rssi - rssi) * + (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) + + 62 * (priv->ieee->perfect_rssi - rssi))) / + ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * + (priv->ieee->perfect_rssi - priv->ieee->worst_rssi)); + if (signal_quality > 100) + signal_quality = 100; + else if (signal_quality < 1) + signal_quality = 0; + + IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n", + signal_quality, rssi); + + quality = min(beacon_quality, + min(rate_quality, + min(tx_quality, min(rx_quality, signal_quality)))); + if (quality == beacon_quality) + IPW_DEBUG_STATS( + "Quality (%d%%): Clamped to missed beacons.\n", + quality); + if (quality == rate_quality) + IPW_DEBUG_STATS( + "Quality (%d%%): Clamped to rate quality.\n", + quality); + if (quality == tx_quality) + IPW_DEBUG_STATS( + "Quality (%d%%): Clamped to Tx quality.\n", + quality); + if (quality == rx_quality) + IPW_DEBUG_STATS( + "Quality (%d%%): Clamped to Rx quality.\n", + quality); + if (quality == signal_quality) + IPW_DEBUG_STATS( + "Quality (%d%%): Clamped to signal quality.\n", + quality); + + priv->quality = quality; + + queue_delayed_work(priv->workqueue, &priv->gather_stats, + IPW_STATS_INTERVAL); +} + + +static void ipw_bg_gather_stats(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_gather_stats(data); + up(&priv->sem); +} + +static inline void ipw_handle_missed_beacon(struct ipw_priv *priv, + int missed_count) +{ + priv->notif_missed_beacons = missed_count; + + if (missed_count > priv->disassociate_threshold && + priv->status & STATUS_ASSOCIATED) { + /* If associated and we've hit the missed + * beacon threshold, disassociate, turn + * off roaming, and abort any active scans */ + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | + IPW_DL_STATE | IPW_DL_ASSOC, + "Missed beacon: %d - disassociate\n", + missed_count); + priv->status &= ~STATUS_ROAMING; + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | + IPW_DL_STATE, + "Aborting scan with missed beacon.\n"); + queue_work(priv->workqueue, &priv->abort_scan); + } + + queue_work(priv->workqueue, &priv->disassociate); + return; + } + + if (priv->status & STATUS_ROAMING) { + /* If we are currently roaming, then just + * print a debug statement... */ + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "Missed beacon: %d - roam in progress\n", + missed_count); + return; + } + + if (missed_count > priv->roaming_threshold) { + /* If we are not already roaming, set the ROAM + * bit in the status and kick off a scan */ + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "Missed beacon: %d - initiate " + "roaming\n", missed_count); + if (!(priv->status & STATUS_ROAMING)) { + priv->status |= STATUS_ROAMING; + if (!(priv->status & STATUS_SCANNING)) + queue_work(priv->workqueue, + &priv->request_scan); + } + return; + } + + if (priv->status & STATUS_SCANNING) { + /* Stop scan to keep fw from getting + * stuck (only if we aren't roaming -- + * otherwise we'll never scan more than 2 or 3 + * channels..) */ + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE, + "Aborting scan with missed beacon.\n"); + queue_work(priv->workqueue, &priv->abort_scan); + } + + IPW_DEBUG_NOTIF("Missed beacon: %d\n", + missed_count); + +} + + +/** + * Handle host notification packet. + * Called from interrupt routine + */ +static inline void ipw_rx_notification(struct ipw_priv* priv, + struct ipw_rx_notification *notif) +{ + notif->size = le16_to_cpu(notif->size); + + IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", + notif->subtype, notif->size); + + switch (notif->subtype) { + case HOST_NOTIFICATION_STATUS_ASSOCIATED: { + struct notif_association *assoc = ¬if->u.assoc; + + switch (assoc->state) { + case CMAS_ASSOCIATED: { + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "associated: '%s' " MAC_FMT " \n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + + switch (priv->ieee->iw_mode) { + case IW_MODE_INFRA: + memcpy(priv->ieee->bssid, priv->bssid, + ETH_ALEN); + break; + + case IW_MODE_ADHOC: + memcpy(priv->ieee->bssid, priv->bssid, + ETH_ALEN); + + /* clear out the station table */ + priv->num_stations = 0; + + IPW_DEBUG_ASSOC("queueing adhoc check\n"); + queue_delayed_work(priv->workqueue, + &priv->adhoc_check, + priv->assoc_request.beacon_interval); + break; + } + + priv->status &= ~STATUS_ASSOCIATING; + priv->status |= STATUS_ASSOCIATED; + queue_work(priv->workqueue, &priv->system_config); + +#ifdef CONFIG_IPW_QOS +#define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \ + le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_ctl)) + if ((priv->status & STATUS_AUTH) && + (IPW_GET_PACKET_STYPE(¬if->u.raw) == + IEEE80211_STYPE_ASSOC_RESP)) { + if ((sizeof(struct ieee80211_assoc_response_frame) <= notif->size) && + (notif->size <= 2314)) { + struct ieee80211_rx_stats stats = { + .len = notif->size - 1, + }; + + IPW_DEBUG_QOS("QoS Associate " + "size %d\n", notif->size); + ieee80211_rx_mgt( + priv->ieee, + (struct ieee80211_hdr *) + ¬if->u.raw, &stats); + } + } +#endif + + schedule_work(&priv->link_up); + + break; + } + + case CMAS_AUTHENTICATED: { + if (priv->status & (STATUS_ASSOCIATED | STATUS_AUTH)) { +#ifdef CONFIG_IPW_DEBUG + struct notif_authenticate *auth = ¬if->u.auth; + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "deauthenticated: '%s' " MAC_FMT ": (0x%04X) - %s \n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid), + ntohs(auth->status), + ipw_get_status_code(ntohs(auth->status))); +#endif + + priv->status &= ~(STATUS_ASSOCIATING | + STATUS_AUTH | + STATUS_ASSOCIATED); + + schedule_work(&priv->link_down); + break; + } + + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "authenticated: '%s' " MAC_FMT "\n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + break; + } + + case CMAS_INIT: { + if (priv->status & STATUS_AUTH) { + struct ieee80211_assoc_response_frame *resp; + resp = (struct ieee80211_assoc_response_frame *)¬if->u.raw; + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "association failed (0x%04X): %s\n", + ntohs(resp->status), + ipw_get_status_code(ntohs(resp->status))); + } + + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "disassociated: '%s' " MAC_FMT " \n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + + priv->status &= ~( + STATUS_DISASSOCIATING | + STATUS_ASSOCIATING | + STATUS_ASSOCIATED | + STATUS_AUTH); + if (priv->assoc_network && + (priv->assoc_network->capability & + WLAN_CAPABILITY_IBSS)) + ipw_remove_current_network(priv); + + schedule_work(&priv->link_down); + + break; + } + + case CMAS_RX_ASSOC_RESP: + break; + + default: + IPW_ERROR("assoc: unknown (%d)\n", + assoc->state); + break; + } + + break; + } + + case HOST_NOTIFICATION_STATUS_AUTHENTICATE: { + struct notif_authenticate *auth = ¬if->u.auth; + switch (auth->state) { + case CMAS_AUTHENTICATED: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "authenticated: '%s' " MAC_FMT " \n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + priv->status |= STATUS_AUTH; + break; + + case CMAS_INIT: + if (priv->status & STATUS_AUTH) { + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "authentication failed (0x%04X): %s\n", + ntohs(auth->status), + ipw_get_status_code(ntohs(auth->status))); + } + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "deauthenticated: '%s' " MAC_FMT "\n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + + priv->status &= ~(STATUS_ASSOCIATING | + STATUS_AUTH | + STATUS_ASSOCIATED); + + schedule_work(&priv->link_down); + break; + + case CMAS_TX_AUTH_SEQ_1: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUTH_SEQ_1\n"); + break; + case CMAS_RX_AUTH_SEQ_2: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUTH_SEQ_2\n"); + break; + case CMAS_AUTH_SEQ_1_PASS: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUTH_SEQ_1_PASS\n"); + break; + case CMAS_AUTH_SEQ_1_FAIL: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUTH_SEQ_1_FAIL\n"); + break; + case CMAS_TX_AUTH_SEQ_3: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUTH_SEQ_3\n"); + break; + case CMAS_RX_AUTH_SEQ_4: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "RX_AUTH_SEQ_4\n"); + break; + case CMAS_AUTH_SEQ_2_PASS: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUTH_SEQ_2_PASS\n"); + break; + case CMAS_AUTH_SEQ_2_FAIL: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "AUT_SEQ_2_FAIL\n"); + break; + case CMAS_TX_ASSOC: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "TX_ASSOC\n"); + break; + case CMAS_RX_ASSOC_RESP: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "RX_ASSOC_RESP\n"); + + break; + case CMAS_ASSOCIATED: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "ASSOCIATED\n"); + break; + default: + IPW_DEBUG_NOTIF("auth: failure - %d\n", auth->state); + break; + } + break; + } + + case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT: { + struct notif_channel_result *x = ¬if->u.channel_result; + + if (notif->size == sizeof(*x)) { + IPW_DEBUG_SCAN("Scan result for channel %d\n", + x->channel_num); + } else { + IPW_DEBUG_SCAN("Scan result of wrong size %d " + "(should be %zd)\n", + notif->size,sizeof(*x)); + } + break; + } + + case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED: { + struct notif_scan_complete* x = ¬if->u.scan_complete; + if (notif->size == sizeof(*x)) { + IPW_DEBUG_SCAN("Scan completed: type %d, %d channels, " + "%d status\n", + x->scan_type, + x->num_channels, + x->status); + } else { + IPW_ERROR("Scan completed of wrong size %d " + "(should be %zd)\n", + notif->size,sizeof(*x)); + } + + priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); + + wake_up_interruptible(&priv->wait_state); + cancel_delayed_work(&priv->scan_check); + + if (priv->status & STATUS_EXIT_PENDING) + break; + + priv->ieee->scans++; + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + priv->status |= STATUS_SCAN_FORCED; + queue_work(priv->workqueue, &priv->request_scan); + break; + } + priv->status &= ~STATUS_SCAN_FORCED; +#endif /* CONFIG_IPW2200_MONITOR */ + + if (!(priv->status & (STATUS_ASSOCIATED | + STATUS_ASSOCIATING | + STATUS_ROAMING | + STATUS_DISASSOCIATING))) + queue_work(priv->workqueue, &priv->associate); + else if (priv->status & STATUS_ROAMING) { + /* If a scan completed and we are in roam mode, then + * the scan that completed was the one requested as a + * result of entering roam... so, schedule the + * roam work */ + queue_work(priv->workqueue, &priv->roam); + } else if (priv->status & STATUS_SCAN_PENDING) + queue_work(priv->workqueue, &priv->request_scan); + else if (priv->config & CFG_BACKGROUND_SCAN && + priv->status & STATUS_ASSOCIATED) + queue_delayed_work(priv->workqueue, + &priv->request_scan, HZ); + break; + } + + case HOST_NOTIFICATION_STATUS_FRAG_LENGTH: { + struct notif_frag_length *x = ¬if->u.frag_len; + + if (notif->size == sizeof(*x)) + IPW_ERROR("Frag length: %d\n", + le16_to_cpu(x->frag_length)); + else + IPW_ERROR("Frag length of wrong size %d " + "(should be %zd)\n", + notif->size, sizeof(*x)); + break; + } + + case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION: { + struct notif_link_deterioration *x = + ¬if->u.link_deterioration; + + if (notif->size==sizeof(*x)) { + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "link deterioration: '%s' " MAC_FMT " \n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + memcpy(&priv->last_link_deterioration, x, sizeof(*x)); + } else { + IPW_ERROR("Link Deterioration of wrong size %d " + "(should be %zd)\n", + notif->size,sizeof(*x)); + } + break; + } + + case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE: { + IPW_ERROR("Dino config\n"); + if (priv->hcmd && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG) + IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n"); + + break; + } + + case HOST_NOTIFICATION_STATUS_BEACON_STATE: { + struct notif_beacon_state *x = ¬if->u.beacon_state; + if (notif->size != sizeof(*x)) { + IPW_ERROR("Beacon state of wrong size %d (should " + "be %zd)\n", notif->size, sizeof(*x)); + break; + } + + if (le32_to_cpu(x->state) == HOST_NOTIFICATION_STATUS_BEACON_MISSING) + ipw_handle_missed_beacon(priv, le32_to_cpu(x->number)); + + break; + } + + case HOST_NOTIFICATION_STATUS_TGI_TX_KEY: { + struct notif_tgi_tx_key *x = ¬if->u.tgi_tx_key; + if (notif->size==sizeof(*x)) { + IPW_ERROR("TGi Tx Key: state 0x%02x sec type " + "0x%02x station %d\n", + x->key_state,x->security_type, + x->station_index); + break; + } + + IPW_ERROR("TGi Tx Key of wrong size %d (should be %zd)\n", + notif->size,sizeof(*x)); + break; + } + + case HOST_NOTIFICATION_CALIB_KEEP_RESULTS: { + struct notif_calibration *x = ¬if->u.calibration; + + if (notif->size == sizeof(*x)) { + memcpy(&priv->calib, x, sizeof(*x)); + IPW_DEBUG_INFO("TODO: Calibration\n"); + break; + } + + IPW_ERROR("Calibration of wrong size %d (should be %zd)\n", + notif->size,sizeof(*x)); + break; + } + + case HOST_NOTIFICATION_NOISE_STATS: { + if (notif->size == sizeof(u32)) { + priv->last_noise = (u8)(le32_to_cpu(notif->u.noise.value) & 0xff); + average_add(&priv->average_noise, priv->last_noise); + break; + } + + IPW_ERROR("Noise stat is wrong size %d (should be %zd)\n", + notif->size, sizeof(u32)); + break; + } + + default: + IPW_ERROR("Unknown notification: " + "subtype=%d,flags=0x%2x,size=%d\n", + notif->subtype, notif->flags, notif->size); + } +} + +/** + * Destroys all DMA structures and initialise them again + * + * @param priv + * @return error code + */ +static int ipw_queue_reset(struct ipw_priv *priv) +{ + int rc = 0; + /** @todo customize queue sizes */ + int nTx = 64, nTxCmd = 8; + ipw_tx_queue_free(priv); + /* Tx CMD queue */ + rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd, + IPW_TX_CMD_QUEUE_READ_INDEX, + IPW_TX_CMD_QUEUE_WRITE_INDEX, + IPW_TX_CMD_QUEUE_BD_BASE, + IPW_TX_CMD_QUEUE_BD_SIZE); + if (rc) { + IPW_ERROR("Tx Cmd queue init failed\n"); + goto error; + } + /* Tx queue(s) */ + rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx, + IPW_TX_QUEUE_0_READ_INDEX, + IPW_TX_QUEUE_0_WRITE_INDEX, + IPW_TX_QUEUE_0_BD_BASE, + IPW_TX_QUEUE_0_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 0 queue init failed\n"); + goto error; + } + rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx, + IPW_TX_QUEUE_1_READ_INDEX, + IPW_TX_QUEUE_1_WRITE_INDEX, + IPW_TX_QUEUE_1_BD_BASE, + IPW_TX_QUEUE_1_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 1 queue init failed\n"); + goto error; + } + rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx, + IPW_TX_QUEUE_2_READ_INDEX, + IPW_TX_QUEUE_2_WRITE_INDEX, + IPW_TX_QUEUE_2_BD_BASE, + IPW_TX_QUEUE_2_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 2 queue init failed\n"); + goto error; + } + rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx, + IPW_TX_QUEUE_3_READ_INDEX, + IPW_TX_QUEUE_3_WRITE_INDEX, + IPW_TX_QUEUE_3_BD_BASE, + IPW_TX_QUEUE_3_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 3 queue init failed\n"); + goto error; + } + /* statistics */ + priv->rx_bufs_min = 0; + priv->rx_pend_max = 0; + return rc; + + error: + ipw_tx_queue_free(priv); + return rc; +} + +/** + * Reclaim Tx queue entries no more used by NIC. + * + * When FW adwances 'R' index, all entries between old and + * new 'R' index need to be reclaimed. As result, some free space + * forms. If there is enough free space (> low mark), wake Tx queue. + * + * @note Need to protect against garbage in 'R' index + * @param priv + * @param txq + * @param qindex + * @return Number of used entries remains in the queue + */ +static int ipw_queue_tx_reclaim(struct ipw_priv *priv, + struct clx2_tx_queue *txq, int qindex) +{ + u32 hw_tail; + int used; + struct clx2_queue *q = &txq->q; + + hw_tail = ipw_read32(priv, q->reg_r); + if (hw_tail >= q->n_bd) { + IPW_ERROR + ("Read index for DMA queue (%d) is out of range [0-%d)\n", + hw_tail, q->n_bd); + goto done; + } + for (; q->last_used != hw_tail; + q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { + ipw_queue_tx_free_tfd(priv, txq); + priv->tx_packets++; + } + done: + if (ipw_queue_space(q) > q->low_mark && qindex >= 0) + __maybe_wake_tx(priv); + used = q->first_empty - q->last_used; + if (used < 0) + used += q->n_bd; + + return used; +} + +static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf, + int len, int sync) +{ + struct clx2_tx_queue *txq = &priv->txq_cmd; + struct clx2_queue *q = &txq->q; + struct tfd_frame *tfd; + + if (ipw_queue_space(q) < (sync ? 1 : 2)) { + IPW_ERROR("No space for Tx\n"); + return -EBUSY; + } + + tfd = &txq->bd[q->first_empty]; + txq->txb[q->first_empty] = NULL; + + memset(tfd, 0, sizeof(*tfd)); + tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE; + tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; + priv->hcmd_seq++; + tfd->u.cmd.index = hcmd; + tfd->u.cmd.length = len; + memcpy(tfd->u.cmd.payload, buf, len); + q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); + ipw_write32(priv, q->reg_w, q->first_empty); + _ipw_read32(priv, 0x90); + + return 0; +} + + + +/* + * Rx theory of operation + * + * The host allocates 32 DMA target addresses and passes the host address + * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is + * 0 to 31 + * + * Rx Queue Indexes + * The host/firmware share two index registers for managing the Rx buffers. + * + * The READ index maps to the first position that the firmware may be writing + * to -- the driver can read up to (but not including) this position and get + * good data. + * The READ index is managed by the firmware once the card is enabled. + * + * The WRITE index maps to the last position the driver has read from -- the + * position preceding WRITE is the last slot the firmware can place a packet. + * + * The queue is empty (no good data) if WRITE = READ - 1, and is full if + * WRITE = READ. + * + * During initialization the host sets up the READ queue position to the first + * INDEX position, and WRITE to the last (READ - 1 wrapped) + * + * When the firmware places a packet in a buffer it will advance the READ index + * and fire the RX interrupt. The driver can then query the READ index and + * process as many packets as possible, moving the WRITE index forward as it + * resets the Rx queue buffers with new memory. + * + * The management in the driver is as follows: + * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When + * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled + * to replensish the ipw->rxq->rx_free. + * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the + * ipw->rxq is replenished and the READ INDEX is updated (updating the + * 'processed' and 'read' driver indexes as well) + * + A received packet is processed and handed to the kernel network stack, + * detached from the ipw->rxq. The driver 'processed' index is updated. + * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free + * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ + * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there + * were enough free buffers and RX_STALLED is set it is cleared. + * + * + * Driver sequence: + * + * ipw_rx_queue_alloc() Allocates rx_free + * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls + * ipw_rx_queue_restock + * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx + * queue, updates firmware pointers, and updates + * the WRITE index. If insufficient rx_free buffers + * are available, schedules ipw_rx_queue_replenish + * + * -- enable interrupts -- + * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the + * READ INDEX, detaching the SKB from the pool. + * Moves the packet buffer from queue to rx_used. + * Calls ipw_rx_queue_restock to refill any empty + * slots. + * ... + * + */ + +/* + * If there are slots in the RX queue that need to be restocked, + * and we have free pre-allocated buffers, fill the ranks as much + * as we can pulling from rx_free. + * + * This moves the 'write' index forward to catch up with 'processed', and + * also updates the memory address in the firmware to reference the new + * target buffer. + */ +static void ipw_rx_queue_restock(struct ipw_priv *priv) +{ + struct ipw_rx_queue *rxq = priv->rxq; + struct list_head *element; + struct ipw_rx_mem_buffer *rxb; + unsigned long flags; + int write; + + spin_lock_irqsave(&rxq->lock, flags); + write = rxq->write; + while ((rxq->write != rxq->processed) && (rxq->free_count)) { + element = rxq->rx_free.next; + rxb = list_entry(element, struct ipw_rx_mem_buffer, list); + list_del(element); + + ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE, + rxb->dma_addr); + rxq->queue[rxq->write] = rxb; + rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE; + rxq->free_count--; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + /* If the pre-allocated buffer pool is dropping low, schedule to + * refill it */ + if (rxq->free_count <= RX_LOW_WATERMARK) + queue_work(priv->workqueue, &priv->rx_replenish); + + /* If we've added more space for the firmware to place data, tell it */ + if (write != rxq->write) + ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write); +} + +/* + * Move all used packet from rx_used to rx_free, allocating a new SKB for each. + * Also restock the Rx queue via ipw_rx_queue_restock. + * + * This is called as a scheduled work item (except for during intialization) + */ +static void ipw_rx_queue_replenish(void *data) +{ + struct ipw_priv *priv = data; + struct ipw_rx_queue *rxq = priv->rxq; + struct list_head *element; + struct ipw_rx_mem_buffer *rxb; + unsigned long flags; + + spin_lock_irqsave(&rxq->lock, flags); + while (!list_empty(&rxq->rx_used)) { + element = rxq->rx_used.next; + rxb = list_entry(element, struct ipw_rx_mem_buffer, list); + rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC); + if (!rxb->skb) { + printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n", + priv->net_dev->name); + /* We don't reschedule replenish work here -- we will + * call the restock method and if it still needs + * more buffers it will schedule replenish */ + break; + } + list_del(element); + + rxb->rxb = (struct ipw_rx_buffer *)rxb->skb->data; + rxb->dma_addr = pci_map_single( + priv->pci_dev, rxb->skb->data, IPW_RX_BUF_SIZE, + PCI_DMA_FROMDEVICE); + + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + ipw_rx_queue_restock(priv); +} + +static void ipw_bg_rx_queue_replenish(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_rx_queue_replenish(data); + up(&priv->sem); +} + +/* Assumes that the skb field of the buffers in 'pool' is kept accurate. + * If an SKB has been detached, the POOL needs to have it's SKB set to NULL + * This free routine walks the list of POOL entries and if SKB is set to + * non NULL it is unmapped and freed + */ +static void ipw_rx_queue_free(struct ipw_priv *priv, + struct ipw_rx_queue *rxq) +{ + int i; + + if (!rxq) + return; + + for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { + if (rxq->pool[i].skb != NULL) { + pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr, + IPW_RX_BUF_SIZE, + PCI_DMA_FROMDEVICE); + dev_kfree_skb(rxq->pool[i].skb); + } + } + + kfree(rxq); +} + +static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv) +{ + struct ipw_rx_queue *rxq; + int i; + + rxq = (struct ipw_rx_queue *)kmalloc(sizeof(*rxq), GFP_KERNEL); + memset(rxq, 0, sizeof(*rxq)); + spin_lock_init(&rxq->lock); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->processed = RX_QUEUE_SIZE - 1; + rxq->free_count = 0; + + return rxq; +} + +static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate) +{ + rate &= ~IEEE80211_BASIC_RATE_MASK; + if (ieee_mode == IEEE_A) { + switch (rate) { + case IEEE80211_OFDM_RATE_6MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_9MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_12MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_18MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_24MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_36MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_48MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? + 1 : 0; + case IEEE80211_OFDM_RATE_54MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? + 1 : 0; + default: + return 0; + } + } + + /* B and G mixed */ + switch (rate) { + case IEEE80211_CCK_RATE_1MB: + return priv->rates_mask & IEEE80211_CCK_RATE_1MB_MASK ? 1 : 0; + case IEEE80211_CCK_RATE_2MB: + return priv->rates_mask & IEEE80211_CCK_RATE_2MB_MASK ? 1 : 0; + case IEEE80211_CCK_RATE_5MB: + return priv->rates_mask & IEEE80211_CCK_RATE_5MB_MASK ? 1 : 0; + case IEEE80211_CCK_RATE_11MB: + return priv->rates_mask & IEEE80211_CCK_RATE_11MB_MASK ? 1 : 0; + } + + /* If we are limited to B modulations, bail at this point */ + if (ieee_mode == IEEE_B) + return 0; + + /* G */ + switch (rate) { + case IEEE80211_OFDM_RATE_6MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_9MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_12MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_18MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_24MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_36MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_48MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0; + case IEEE80211_OFDM_RATE_54MB: + return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0; + } + + return 0; +} + +static int ipw_compatible_rates(struct ipw_priv *priv, + const struct ieee80211_network *network, + struct ipw_supported_rates *rates) +{ + int num_rates, i; + + memset(rates, 0, sizeof(*rates)); + num_rates = min(network->rates_len, (u8)IPW_MAX_RATES); + rates->num_rates = 0; + for (i = 0; i < num_rates; i++) { + if (!ipw_is_rate_in_mask(priv, network->mode, + network->rates[i])) { + + if (network->rates[i] & IEEE80211_BASIC_RATE_MASK) { + IPW_DEBUG_SCAN("Adding masked mandatory " + "rate %02X\n", + network->rates[i]); + rates->supported_rates[rates->num_rates++] = + network->rates[i]; + continue; + } + + IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", + network->rates[i], priv->rates_mask); + continue; + } + + rates->supported_rates[rates->num_rates++] = network->rates[i]; + } + + num_rates = min(network->rates_ex_len, + (u8)(IPW_MAX_RATES - num_rates)); + for (i = 0; i < num_rates; i++) { + if (!ipw_is_rate_in_mask(priv, network->mode, + network->rates_ex[i])) { + if (network->rates_ex[i] & IEEE80211_BASIC_RATE_MASK) { + IPW_DEBUG_SCAN("Adding masked mandatory " + "rate %02X\n", + network->rates_ex[i]); + rates->supported_rates[rates->num_rates++] = + network->rates[i]; + continue; + } + + IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", + network->rates_ex[i], priv->rates_mask); + continue; + } + + rates->supported_rates[rates->num_rates++] = + network->rates_ex[i]; + } + + return 1; +} + +static inline void ipw_copy_rates(struct ipw_supported_rates *dest, + const struct ipw_supported_rates *src) +{ + u8 i; + for (i = 0; i < src->num_rates; i++) + dest->supported_rates[i] = src->supported_rates[i]; + dest->num_rates = src->num_rates; +} + +/* TODO: Look at sniffed packets in the air to determine if the basic rate + * mask should ever be used -- right now all callers to add the scan rates are + * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */ +static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates, + u8 modulation, u32 rate_mask) +{ + u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ? + IEEE80211_BASIC_RATE_MASK : 0; + + if (rate_mask & IEEE80211_CCK_RATE_1MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; + + if (rate_mask & IEEE80211_CCK_RATE_2MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; + + if (rate_mask & IEEE80211_CCK_RATE_5MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + IEEE80211_CCK_RATE_5MB; + + if (rate_mask & IEEE80211_CCK_RATE_11MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + IEEE80211_CCK_RATE_11MB; +} + +static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates, + u8 modulation, u32 rate_mask) +{ + u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ? + IEEE80211_BASIC_RATE_MASK : 0; + + if (rate_mask & IEEE80211_OFDM_RATE_6MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + IEEE80211_OFDM_RATE_6MB; + + if (rate_mask & IEEE80211_OFDM_RATE_9MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_OFDM_RATE_9MB; + + if (rate_mask & IEEE80211_OFDM_RATE_12MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + IEEE80211_OFDM_RATE_12MB; + + if (rate_mask & IEEE80211_OFDM_RATE_18MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_OFDM_RATE_18MB; + + if (rate_mask & IEEE80211_OFDM_RATE_24MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + IEEE80211_OFDM_RATE_24MB; + + if (rate_mask & IEEE80211_OFDM_RATE_36MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_OFDM_RATE_36MB; + + if (rate_mask & IEEE80211_OFDM_RATE_48MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_OFDM_RATE_48MB; + + if (rate_mask & IEEE80211_OFDM_RATE_54MB_MASK) + rates->supported_rates[rates->num_rates++] = + IEEE80211_OFDM_RATE_54MB; +} + +struct ipw_network_match { + struct ieee80211_network *network; + struct ipw_supported_rates rates; +}; + + +static int ipw_find_adhoc_network(struct ipw_priv *priv, + struct ipw_network_match *match, + struct ieee80211_network *network, + int roaming) +{ + struct ipw_supported_rates rates; + + /* Verify that this network's capability is compatible with the + * current mode (AdHoc or Infrastructure) */ + if ((priv->ieee->iw_mode == IW_MODE_ADHOC && + !(network->capability & WLAN_CAPABILITY_IBSS))) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded due to " + "capability mismatch.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + /* If we do not have an ESSID for this AP, we can not associate with + * it */ + if (network->flags & NETWORK_EMPTY_ESSID) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of hidden ESSID.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + if (unlikely(roaming)) { + /* If we are roaming, then ensure check if this is a valid + * network to try and roam to */ + if ((network->ssid_len != match->network->ssid_len) || + memcmp(network->ssid, match->network->ssid, + network->ssid_len)) { + IPW_DEBUG_MERGE("Netowrk '%s (" MAC_FMT ")' excluded " + "because of non-network ESSID.\n", + escape_essid(network->ssid, + network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + } else { + /* If an ESSID has been configured then compare the broadcast + * ESSID to ours */ + if ((priv->config & CFG_STATIC_ESSID) && + ((network->ssid_len != priv->essid_len) || + memcmp(network->ssid, priv->essid, + min(network->ssid_len, priv->essid_len)))) { + char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; + + strncpy(escaped, escape_essid( + network->ssid, network->ssid_len), + sizeof(escaped)); + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of ESSID mismatch: '%s'.\n", + escaped, MAC_ARG(network->bssid), + escape_essid(priv->essid, + priv->essid_len)); + return 0; + } + } + + /* If the old network rate is better than this one, don't bother + * testing everything else. */ + + if (network->time_stamp[0] < match->network->time_stamp[0]) { + IPW_DEBUG_MERGE("Network '%s excluded because newer than " + "current network.\n", + escape_essid(match->network->ssid, + match->network->ssid_len)); + return 0; + } else if (network->time_stamp[1] < match->network->time_stamp[1]) { + IPW_DEBUG_MERGE("Network '%s excluded because newer than " + "current network.\n", + escape_essid(match->network->ssid, + match->network->ssid_len)); + return 0; + } + + + /* Now go through and see if the requested network is valid... */ + if (priv->ieee->scan_age != 0 && + time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of age: %lums.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + 1000 * (jiffies - network->last_scanned) / HZ); + return 0; + } + + if ((priv->config & CFG_STATIC_CHANNEL) && + (network->channel != priv->channel)) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of channel mismatch: %d != %d.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + network->channel, priv->channel); + return 0; + } + + /* Verify privacy compatability */ + if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != + ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of privacy mismatch: %s != %s.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + priv->capability & CAP_PRIVACY_ON ? "on":"off", + network->capability & + WLAN_CAPABILITY_PRIVACY ?"on" : "off"); + return 0; + } + + if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of the same BSSID match: "MAC_FMT".\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + MAC_ARG(priv->bssid)); + return 0; + } + + /* Filter out any incompatible freq / mode combinations */ + if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of invalid frequency/mode " + "combination.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + /* Ensure that the rates supported by the driver are compatible with + * this AP, including verification of basic rates (mandatory) */ + if (!ipw_compatible_rates(priv, network, &rates)) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because configured rate mask excludes " + "AP mandatory rate.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + if (rates.num_rates == 0) { + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded " + "because of no compatible rates.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + /* TODO: Perform any further minimal comparititive tests. We do not + * want to put too much policy logic here; intelligent scan selection + * should occur within a generic IEEE 802.11 user space tool. */ + + /* Set up 'new' AP to this network */ + ipw_copy_rates(&match->rates, &rates); + match->network = network; + IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' is a viable match.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + + return 1; +} + + +static void ipw_merge_adhoc_network(void *data) +{ + struct ipw_priv *priv = data; + struct ieee80211_network *network = NULL; + struct ipw_network_match match = { + .network = priv->assoc_network + }; + + if ((priv->status & STATUS_ASSOCIATED) && + (priv->ieee->iw_mode == IW_MODE_ADHOC)) { + /* First pass through ROAM process -- look for a better + * network */ + unsigned long flags; + + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_entry(network, &priv->ieee->network_list, list) { + if (network != priv->assoc_network) + ipw_find_adhoc_network(priv, &match, network,1); + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + if (match.network == priv->assoc_network) { + IPW_DEBUG_MERGE("No better ADHOC in this network to " + "merge to.\n"); + return; + } + + down(&priv->sem); + if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) { + IPW_DEBUG_MERGE("remove network %s\n", + escape_essid(priv->essid, + priv->essid_len)); + ipw_remove_current_network(priv); + } + + ipw_disassociate(priv); + priv->assoc_network = match.network; + up(&priv->sem); + return; + } +} + + +static int ipw_best_network(struct ipw_priv *priv, + struct ipw_network_match *match, + struct ieee80211_network *network, + int roaming) +{ + struct ipw_supported_rates rates; + + /* Verify that this network's capability is compatible with the + * current mode (AdHoc or Infrastructure) */ + if ((priv->ieee->iw_mode == IW_MODE_INFRA && + !(network->capability & WLAN_CAPABILITY_BSS)) || + (priv->ieee->iw_mode == IW_MODE_ADHOC && + !(network->capability & WLAN_CAPABILITY_IBSS))) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded due to " + "capability mismatch.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + /* If we do not have an ESSID for this AP, we can not associate with + * it */ + if (network->flags & NETWORK_EMPTY_ESSID) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of hidden ESSID.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + if (unlikely(roaming)) { + /* If we are roaming, then ensure check if this is a valid + * network to try and roam to */ + if ((network->ssid_len != match->network->ssid_len) || + memcmp(network->ssid, match->network->ssid, + network->ssid_len)) { + IPW_DEBUG_ASSOC("Netowrk '%s (" MAC_FMT ")' excluded " + "because of non-network ESSID.\n", + escape_essid(network->ssid, + network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + } else { + /* If an ESSID has been configured then compare the broadcast + * ESSID to ours */ + if ((priv->config & CFG_STATIC_ESSID) && + ((network->ssid_len != priv->essid_len) || + memcmp(network->ssid, priv->essid, + min(network->ssid_len, priv->essid_len)))) { + char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; + strncpy(escaped, escape_essid( + network->ssid, network->ssid_len), + sizeof(escaped)); + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of ESSID mismatch: '%s'.\n", + escaped, MAC_ARG(network->bssid), + escape_essid(priv->essid, priv->essid_len)); + return 0; + } + } + + /* If the old network rate is better than this one, don't bother + * testing everything else. */ + if (match->network && match->network->stats.rssi > + network->stats.rssi) { + char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; + strncpy(escaped, + escape_essid(network->ssid, network->ssid_len), + sizeof(escaped)); + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded because " + "'%s (" MAC_FMT ")' has a stronger signal.\n", + escaped, MAC_ARG(network->bssid), + escape_essid(match->network->ssid, + match->network->ssid_len), + MAC_ARG(match->network->bssid)); + return 0; + } + + /* If this network has already had an association attempt within the + * last 3 seconds, do not try and associate again... */ + if (network->last_associate && + time_after(network->last_associate + (HZ * 3UL), jiffies)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of storming (%lus since last " + "assoc attempt).\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + (jiffies - network->last_associate) / HZ); + return 0; + } + + /* Now go through and see if the requested network is valid... */ + if (priv->ieee->scan_age != 0 && + time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of age: %lums.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + 1000 * (jiffies - network->last_scanned) / HZ); + return 0; + } + + if ((priv->config & CFG_STATIC_CHANNEL) && + (network->channel != priv->channel)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of channel mismatch: %d != %d.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + network->channel, priv->channel); + return 0; + } + + /* Verify privacy compatability */ + if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != + ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of privacy mismatch: %s != %s.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + priv->capability & CAP_PRIVACY_ON ? "on" : + "off", + network->capability & + WLAN_CAPABILITY_PRIVACY ?"on" : "off"); + return 0; + } + + if ((priv->config & CFG_STATIC_BSSID) && + memcmp(network->bssid, priv->bssid, ETH_ALEN)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of BSSID mismatch: " MAC_FMT ".\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid), + MAC_ARG(priv->bssid)); + return 0; + } + + /* Filter out any incompatible freq / mode combinations */ + if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of invalid frequency/mode " + "combination.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + /* Ensure that the rates supported by the driver are compatible with + * this AP, including verification of basic rates (mandatory) */ + if (!ipw_compatible_rates(priv, network, &rates)) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because configured rate mask excludes " + "AP mandatory rate.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + if (rates.num_rates == 0) { + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded " + "because of no compatible rates.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + return 0; + } + + /* TODO: Perform any further minimal comparititive tests. We do not + * want to put too much policy logic here; intelligent scan selection + * should occur within a generic IEEE 802.11 user space tool. */ + + /* Set up 'new' AP to this network */ + ipw_copy_rates(&match->rates, &rates); + match->network = network; + + IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' is a viable match.\n", + escape_essid(network->ssid, network->ssid_len), + MAC_ARG(network->bssid)); + + return 1; +} + + +static void ipw_adhoc_create(struct ipw_priv *priv, + struct ieee80211_network *network) +{ + const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee); + int i; + + /* + * For the purposes of scanning, we can set our wireless mode + * to trigger scans across combinations of bands, but when it + * comes to creating a new ad-hoc network, we have tell the FW + * exactly which band to use. + * + * We also have the possibility of an invalid channel for the + * chossen band. Attempting to create a new ad-hoc network + * with an invalid channel for wireless mode will trigger a + * FW fatal error. + * + */ + switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) { + case IEEE80211_52GHZ_BAND: + network->mode = IEEE_A; + i = ieee80211_channel_to_index(priv->ieee, priv->channel); + if (i == -1) + BUG(); + if (geo->a[i].passive_only) { + IPW_WARNING("Overriding invalid channel\n"); + priv->channel = geo->a[0].channel; + } + break; + + case IEEE80211_24GHZ_BAND: + if (priv->ieee->mode & IEEE_G) + network->mode = IEEE_G; + else + network->mode = IEEE_B; + break; + + default: + IPW_WARNING("Overriding invalid channel\n"); + if (priv->ieee->mode & IEEE_A) { + network->mode = IEEE_A; + priv->channel = geo->a[0].channel; + } else if (priv->ieee->mode & IEEE_G) { + network->mode = IEEE_G; + priv->channel = geo->bg[0].channel; + } else { + network->mode = IEEE_B; + priv->channel = geo->bg[0].channel; + } + break; + } + + network->channel = priv->channel; + priv->config |= CFG_ADHOC_PERSIST; + ipw_create_bssid(priv, network->bssid); + network->ssid_len = priv->essid_len; + memcpy(network->ssid, priv->essid, priv->essid_len); + memset(&network->stats, 0, sizeof(network->stats)); + network->capability = WLAN_CAPABILITY_IBSS; + if (!(priv->config & CFG_PREAMBLE_LONG)) + network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE; + if (priv->capability & CAP_PRIVACY_ON) + network->capability |= WLAN_CAPABILITY_PRIVACY; + network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH); + memcpy(network->rates, priv->rates.supported_rates, + network->rates_len); + network->rates_ex_len = priv->rates.num_rates - network->rates_len; + memcpy(network->rates_ex, + &priv->rates.supported_rates[network->rates_len], + network->rates_ex_len); + network->last_scanned = 0; + network->flags = 0; + network->last_associate = 0; + network->time_stamp[0] = 0; + network->time_stamp[1] = 0; + network->beacon_interval = 100; /* Default */ + network->listen_interval = 10; /* Default */ + network->atim_window = 0; /* Default */ + network->wpa_ie_len = 0; + network->rsn_ie_len = 0; +} + +static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index) +{ + struct ipw_tgi_tx_key *key; + struct host_cmd cmd = { + .cmd = IPW_CMD_TGI_TX_KEY, + .len = sizeof(*key) + }; + + if (!(priv->ieee->sec.flags & (1 << index))) + return; + + key = (struct ipw_tgi_tx_key *)&cmd.param; + key->key_id = index; + memcpy(key->key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH); + key->security_type = type; + key->station_index = 0; /* always 0 for BSS */ + key->flags = 0; + /* 0 for new key; previous value of counter (after fatal error) */ + key->tx_counter[0] = 0; + key->tx_counter[1] = 0; + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send TGI_TX_KEY command\n"); + return; + } +} + +static void ipw_send_wep_keys(struct ipw_priv *priv, int type) +{ + struct ipw_wep_key *key; + int i; + struct host_cmd cmd = { + .cmd = IPW_CMD_WEP_KEY, + .len = sizeof(*key) + }; + + key = (struct ipw_wep_key *)&cmd.param; + key->cmd_id = DINO_CMD_WEP_KEY; + key->seq_num = 0; + + /* Note: AES keys cannot be set for multiple times. + * Only set it at the first time. */ + for (i = 0; i < 4; i++) { + key->key_index = i | type; + if (!(priv->ieee->sec.flags & (1 << i))) { + key->key_size = 0; + continue; + } + + key->key_size = priv->ieee->sec.key_sizes[i]; + memcpy(key->key, priv->ieee->sec.keys[i], key->key_size); + + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send WEP_KEY command\n"); + return; + } + } +} + +static void ipw_set_hwcrypto_keys(struct ipw_priv *priv) +{ + switch (priv->ieee->sec.level) { + case SEC_LEVEL_3: + if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) + ipw_send_tgi_tx_key(priv, + DCT_FLAG_EXT_SECURITY_CCM, + priv->ieee->sec.active_key); + + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM); + priv->sys_config.disable_unicast_decryption = 0; + priv->sys_config.disable_multicast_decryption = 0; + priv->ieee->host_decrypt = 0; + break; + case SEC_LEVEL_2: + if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) + ipw_send_tgi_tx_key(priv, + DCT_FLAG_EXT_SECURITY_TKIP, + priv->ieee->sec.active_key); + + priv->sys_config.disable_unicast_decryption = 1; + priv->sys_config.disable_multicast_decryption = 1; + priv->ieee->host_decrypt = 1; + break; + case SEC_LEVEL_1: + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); + priv->sys_config.disable_unicast_decryption = 0; + priv->sys_config.disable_multicast_decryption = 0; + priv->ieee->host_decrypt = 0; + break; + case SEC_LEVEL_0: + priv->sys_config.disable_unicast_decryption = 1; + priv->sys_config.disable_multicast_decryption = 1; + break; + default: + break; + } +} + +static void ipw_adhoc_check(void *data) +{ + struct ipw_priv *priv = data; + + if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold && + !(priv->config & CFG_ADHOC_PERSIST)) { + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | + IPW_DL_STATE | IPW_DL_ASSOC, + "Missed beacon: %d - disassociate\n", + priv->missed_adhoc_beacons); + ipw_remove_current_network(priv); + ipw_disassociate(priv); + return; + } + + queue_delayed_work(priv->workqueue, &priv->adhoc_check, + priv->assoc_request.beacon_interval); +} + +static void ipw_bg_adhoc_check(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_adhoc_check(data); + up(&priv->sem); +} + +#ifdef CONFIG_IPW_DEBUG +static void ipw_debug_config(struct ipw_priv *priv) +{ + IPW_DEBUG_INFO("Scan completed, no valid APs matched " + "[CFG 0x%08X]\n", priv->config); + if (priv->config & CFG_STATIC_CHANNEL) + IPW_DEBUG_INFO("Channel locked to %d\n", + priv->channel); + else + IPW_DEBUG_INFO("Channel unlocked.\n"); + if (priv->config & CFG_STATIC_ESSID) + IPW_DEBUG_INFO("ESSID locked to '%s'\n", + escape_essid(priv->essid, + priv->essid_len)); + else + IPW_DEBUG_INFO("ESSID unlocked.\n"); + if (priv->config & CFG_STATIC_BSSID) + IPW_DEBUG_INFO("BSSID locked to " MAC_FMT "\n", + MAC_ARG(priv->bssid)); + else + IPW_DEBUG_INFO("BSSID unlocked.\n"); + if (priv->capability & CAP_PRIVACY_ON) + IPW_DEBUG_INFO("PRIVACY on\n"); + else + IPW_DEBUG_INFO("PRIVACY off\n"); + IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask); +} +#else +#define ipw_debug_config(x) do {} while (0); +#endif + +static inline void ipw_set_fixed_rate(struct ipw_priv *priv, + int mode) +{ + /* TODO: Verify that this works... */ + struct ipw_fixed_rate fr = { + .tx_rates = priv->rates_mask + }; + u32 reg; + u16 mask = 0; + + /* Identify 'current FW band' and match it with the fixed + * Tx rates */ + + switch (priv->ieee->freq_band) { + case IEEE80211_52GHZ_BAND: /* A only */ + /* IEEE_A */ + if (priv->rates_mask & ~IEEE80211_OFDM_RATES_MASK) { + /* Invalid fixed rate mask */ + IPW_DEBUG_WX("invalid fixed rate mask in ipw_set_fixed_rate\n"); + fr.tx_rates = 0; + break; + } + + fr.tx_rates >>= IEEE80211_OFDM_SHIFT_MASK_A; + break; + + default: /* 2.4Ghz or Mixed */ + /* IEEE_B */ + if (mode == IEEE_B) { + if (fr.tx_rates & ~IEEE80211_CCK_RATES_MASK) { + /* Invalid fixed rate mask */ + IPW_DEBUG_WX("invalid fixed rate mask in ipw_set_fixed_rate\n"); + fr.tx_rates = 0; + } + break; + } + + /* IEEE_G */ + if (fr.tx_rates & ~(IEEE80211_CCK_RATES_MASK | + IEEE80211_OFDM_RATES_MASK)) { + /* Invalid fixed rate mask */ + IPW_DEBUG_WX("invalid fixed rate mask in ipw_set_fixed_rate\n"); + fr.tx_rates = 0; + break; + } + + if (IEEE80211_OFDM_RATE_6MB_MASK & fr.tx_rates) { + mask |= (IEEE80211_OFDM_RATE_6MB_MASK >> 1); + fr.tx_rates &= ~IEEE80211_OFDM_RATE_6MB_MASK; + } + + if (IEEE80211_OFDM_RATE_9MB_MASK & fr.tx_rates) { + mask |= (IEEE80211_OFDM_RATE_9MB_MASK >> 1); + fr.tx_rates &= ~IEEE80211_OFDM_RATE_9MB_MASK; + } + + if (IEEE80211_OFDM_RATE_12MB_MASK & fr.tx_rates) { + mask |= (IEEE80211_OFDM_RATE_12MB_MASK >> 1); + fr.tx_rates &= ~IEEE80211_OFDM_RATE_12MB_MASK; + } + + fr.tx_rates |= mask; + break; + } + + reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE); + ipw_write_reg32(priv, reg, *(u32*)&fr); +} + + +static void ipw_abort_scan(struct ipw_priv *priv) +{ + int err; + + if (priv->status & STATUS_SCAN_ABORTING) { + IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n"); + return; + } + priv->status |= STATUS_SCAN_ABORTING; + + err = ipw_send_scan_abort(priv); + if (err) + IPW_DEBUG_HC("Request to abort scan failed.\n"); +} + +static void ipw_add_scan_channels(struct ipw_priv *priv, + struct ipw_scan_request_ext *scan, + int scan_type) +{ + int channel_index = 0; + const struct ieee80211_geo *geo; + int i; + + geo = ieee80211_get_geo(priv->ieee); + + if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) { + int start = channel_index; + for (i = 0; i < geo->a_channels; i++) { + if ((priv->status & STATUS_ASSOCIATED) && + geo->a[i].channel == priv->channel) + continue; + channel_index++; + scan->channels_list[channel_index] = + geo->a[i].channel; + ipw_set_scan_type(scan, channel_index, scan_type); + } + + if (start != channel_index) { + scan->channels_list[start] = (u8)(IPW_A_MODE << 6) | + (channel_index - start); + channel_index++; + } + } + + if (priv->ieee->freq_band & IEEE80211_24GHZ_BAND) { + int start = channel_index; + if (priv->config & CFG_SPEED_SCAN) { + u8 channels[IEEE80211_24GHZ_CHANNELS] = { + /* nop out the list */ + [0] = 0 + }; + + u8 channel; + while (channel_index < IPW_SCAN_CHANNELS) { + channel =priv->speed_scan[priv->speed_scan_pos]; + if (channel == 0) { + priv->speed_scan_pos = 0; + channel = priv->speed_scan[0]; + } + if ((priv->status & STATUS_ASSOCIATED) && + channel == priv->channel) { + priv->speed_scan_pos++; + continue; + } + + /* If this channel has already been + * added in scan, break from loop + * and this will be the first channel + * in the next scan. + */ + if (channels[channel - 1] != 0) + break; + + channels[channel - 1] = 1; + priv->speed_scan_pos++; + channel_index++; + scan->channels_list[channel_index] = channel; + ipw_set_scan_type(scan, channel_index, + scan_type); + } + } else { + for (i = 0; i < geo->bg_channels; i++) { + if ((priv->status & STATUS_ASSOCIATED) && + geo->bg[i].channel == priv->channel) + continue; + channel_index++; + scan->channels_list[channel_index] = + geo->bg[i].channel; + ipw_set_scan_type(scan, channel_index, + scan_type); + } + } + + if (start != channel_index) { + scan->channels_list[start] = (u8)(IPW_B_MODE << 6) | + (channel_index - start); + } + } +} + +static int ipw_request_scan(struct ipw_priv *priv) +{ + struct ipw_scan_request_ext scan; + int err = 0, scan_type; + + if (!(priv->status & STATUS_INIT) || + (priv->status & STATUS_EXIT_PENDING)) + return 0; + + down(&priv->sem); + + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_HC("Concurrent scan requested. Ignoring.\n"); + priv->status |= STATUS_SCAN_PENDING; + goto done; + } + + if (!(priv->status & STATUS_SCAN_FORCED) && + (priv->status & STATUS_SCAN_ABORTING)) { + IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n"); + priv->status |= STATUS_SCAN_PENDING; + goto done; + } + + if (priv->status & STATUS_RF_KILL_MASK) { + IPW_DEBUG_HC("Aborting scan due to RF Kill activation\n"); + priv->status |= STATUS_SCAN_PENDING; + goto done; + } + + memset(&scan, 0, sizeof(scan)); + + if (priv->config & CFG_SPEED_SCAN) + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = + cpu_to_le16(30); + else + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = + cpu_to_le16(20); + + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = + cpu_to_le16(20); + scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(20); + + scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee)); + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + u8 channel; + u8 band = 0; + + switch (ieee80211_is_valid_channel(priv->ieee, + priv->channel)) { + case IEEE80211_52GHZ_BAND: + band = (u8)(IPW_A_MODE << 6) | 1; + channel = priv->channel; + break; + + case IEEE80211_24GHZ_BAND: + band = (u8)(IPW_B_MODE << 6) | 1; + channel = priv->channel; + break; + + default: + band = (u8)(IPW_B_MODE << 6) | 1; + channel = 9; + break; + } + + scan.channels_list[0] = band; + scan.channels_list[1] = channel; + ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN); + + /* NOTE: The card will sit on this channel for this time + * period. Scan aborts are timing sensitive and frequently + * result in firmware restarts. As such, it is best to + * set a small dwell_time here and just keep re-issuing + * scans. Otherwise fast channel hopping will not actually + * hop channels. + * + * TODO: Move SPEED SCAN support to all modes and bands */ + scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = + cpu_to_le16(2000); + } else { +#endif /* CONFIG_IPW2200_MONITOR */ + /* If we are roaming, then make this a directed scan for the + * current network. Otherwise, ensure that every other scan + * is a fast channel hop scan */ + if ((priv->status & STATUS_ROAMING) || ( + !(priv->status & STATUS_ASSOCIATED) && + (priv->config & CFG_STATIC_ESSID) && + (le32_to_cpu(scan.full_scan_index) % 2))) { + err = ipw_send_ssid(priv, priv->essid, + priv->essid_len); + if (err) { + IPW_DEBUG_HC("Attempt to send SSID command " + "failed.\n"); + goto done; + } + + scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; + } else { + scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN; + } + + ipw_add_scan_channels(priv, &scan, scan_type); +#ifdef CONFIG_IPW2200_MONITOR + } +#endif + + err = ipw_send_scan_request_ext(priv, &scan); + if (err) { + IPW_DEBUG_HC("Sending scan command failed: %08X\n", err); + goto done; + } + + priv->status |= STATUS_SCANNING; + priv->status &= ~STATUS_SCAN_PENDING; + queue_delayed_work(priv->workqueue, &priv->scan_check, + IPW_SCAN_CHECK_WATCHDOG); + done: + up(&priv->sem); + return err; +} + +static void ipw_bg_abort_scan(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_abort_scan(data); + up(&priv->sem); +} + +#if WIRELESS_EXT < 18 +/* Support for wpa_supplicant before WE-18, deprecated. */ + +/* following definitions must match definitions in driver_ipw.c */ + +#define IPW_IOCTL_WPA_SUPPLICANT SIOCIWFIRSTPRIV+30 + +#define IPW_CMD_SET_WPA_PARAM 1 +#define IPW_CMD_SET_WPA_IE 2 +#define IPW_CMD_SET_ENCRYPTION 3 +#define IPW_CMD_MLME 4 + +#define IPW_PARAM_WPA_ENABLED 1 +#define IPW_PARAM_TKIP_COUNTERMEASURES 2 +#define IPW_PARAM_DROP_UNENCRYPTED 3 +#define IPW_PARAM_PRIVACY_INVOKED 4 +#define IPW_PARAM_AUTH_ALGS 5 +#define IPW_PARAM_IEEE_802_1X 6 + +#define IPW_MLME_STA_DEAUTH 1 +#define IPW_MLME_STA_DISASSOC 2 + +#define IPW_CRYPT_ERR_UNKNOWN_ALG 2 +#define IPW_CRYPT_ERR_UNKNOWN_ADDR 3 +#define IPW_CRYPT_ERR_CRYPT_INIT_FAILED 4 +#define IPW_CRYPT_ERR_KEY_SET_FAILED 5 +#define IPW_CRYPT_ERR_TX_KEY_SET_FAILED 6 +#define IPW_CRYPT_ERR_CARD_CONF_FAILED 7 + +#define IPW_CRYPT_ALG_NAME_LEN 16 + +struct ipw_param { + u32 cmd; + u8 sta_addr[ETH_ALEN]; + union { + struct { + u8 name; + u32 value; + } wpa_param; + struct { + u32 len; + u8 reserved[32]; + u8 data[0]; + } wpa_ie; + struct{ + u32 command; + u32 reason_code; + } mlme; + struct { + u8 alg[IPW_CRYPT_ALG_NAME_LEN]; + u8 set_tx; + u32 err; + u8 idx; + u8 seq[8]; /* sequence counter (set: RX, get: TX) */ + u16 key_len; + u8 key[0]; + } crypt; + + } u; +}; + +/* end of driver_ipw.c code */ +#endif + +static int ipw_wpa_enable(struct ipw_priv *priv, int value) +{ + /* This is called when wpa_supplicant loads and closes the driver + * interface. */ + return 0; +} + +#if WIRELESS_EXT < 18 +#define IW_AUTH_ALG_OPEN_SYSTEM 0x1 +#define IW_AUTH_ALG_SHARED_KEY 0x2 +#endif + +static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value) +{ + struct ieee80211_device *ieee = priv->ieee; + struct ieee80211_security sec = { + .flags = SEC_AUTH_MODE, + }; + int ret = 0; + + if (value & IW_AUTH_ALG_SHARED_KEY) { + sec.auth_mode = WLAN_AUTH_SHARED_KEY; + ieee->open_wep = 0; + } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) { + sec.auth_mode = WLAN_AUTH_OPEN; + ieee->open_wep = 1; + } else + return -EINVAL; + + if (ieee->set_security) + ieee->set_security(ieee->dev, &sec); + else + ret = -EOPNOTSUPP; + + return ret; +} + +void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie, int wpa_ie_len) +{ + /* make sure WPA is enabled */ + ipw_wpa_enable(priv, 1); + + ipw_disassociate(priv); +} + +static int ipw_set_rsn_capa(struct ipw_priv *priv, + char *capabilities, int length) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_RSN_CAPABILITIES, + .len = length, + }; + + IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n"); + + memcpy(cmd.param, capabilities, length); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send HOST_CMD_RSN_CAPABILITIES command\n"); + return -1; + } + return 0; +} + +#if WIRELESS_EXT < 18 +static int ipw_wpa_set_param(struct net_device *dev, u8 name, u32 value) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int ret=0; + + switch (name) { + case IPW_PARAM_WPA_ENABLED: + ret = ipw_wpa_enable(priv, value); + break; + + case IPW_PARAM_TKIP_COUNTERMEASURES: + priv->ieee->tkip_countermeasures=value; + break; + + case IPW_PARAM_DROP_UNENCRYPTED: { + /* HACK: + * + * wpa_supplicant calls set_wpa_enabled when the driver + * is loaded and unloaded, regardless of if WPA is being + * used. No other calls are made which can be used to + * determine if encryption will be used or not prior to + * association being expected. If encryption is not being + * used, drop_unencrypted is set to false, else true -- we + * can use this to determine if the CAP_PRIVACY_ON bit should + * be set. + */ + struct ieee80211_security sec = { + .flags = SEC_ENABLED, + .enabled = value, + }; + priv->ieee->drop_unencrypted = value; + /* We only change SEC_LEVEL for open mode. Others + * are set by ipw_wpa_set_encryption. + */ + if (!value) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_0; + } + else { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; + } + if (priv->ieee->set_security) + priv->ieee->set_security(priv->ieee->dev, &sec); + break; + } + + case IPW_PARAM_PRIVACY_INVOKED: + priv->ieee->privacy_invoked=value; + break; + + case IPW_PARAM_AUTH_ALGS: + ret = ipw_wpa_set_auth_algs(priv, value); + break; + + case IPW_PARAM_IEEE_802_1X: + priv->ieee->ieee802_1x=value; + break; + + default: + IPW_ERROR("%s: Unknown WPA param: %d\n", + dev->name, name); + ret = -EOPNOTSUPP; + } + + return ret; +} + +static int ipw_wpa_mlme(struct net_device *dev, int command, int reason) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int ret = 0; + + switch (command) { + case IPW_MLME_STA_DEAUTH: + // silently ignore + break; + + case IPW_MLME_STA_DISASSOC: + ipw_disassociate(priv); + break; + + default: + IPW_ERROR("%s: Unknown MLME request: %d\n", + dev->name, command); + ret = -EOPNOTSUPP; + } + + return ret; +} + +static int ipw_wpa_set_wpa_ie(struct net_device *dev, + struct ipw_param *param, int plen) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee; + u8 *buf; + + if (param->u.wpa_ie.len > MAX_WPA_IE_LEN || + (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL)) + return -EINVAL; + + if (param->u.wpa_ie.len) { + buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len); + kfree(ieee->wpa_ie); + ieee->wpa_ie = buf; + ieee->wpa_ie_len = param->u.wpa_ie.len; + } else { + kfree(ieee->wpa_ie); + ieee->wpa_ie = NULL; + ieee->wpa_ie_len = 0; + } + + ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); + return 0; +} + +/* implementation borrowed from hostap driver */ + +static int ipw_wpa_set_encryption(struct net_device *dev, + struct ipw_param *param, int param_len) +{ + int ret = 0; + struct ipw_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee; + struct ieee80211_crypto_ops *ops; + struct ieee80211_crypt_data **crypt; + + struct ieee80211_security sec = { + .flags = 0, + }; + + param->u.crypt.err = 0; + param->u.crypt.alg[IPW_CRYPT_ALG_NAME_LEN - 1] = '\0'; + + if (param_len != + (int) ((char *) param->u.crypt.key - (char *) param) + + param->u.crypt.key_len) { + IPW_DEBUG_INFO("Len mismatch %d, %d\n", param_len, + param->u.crypt.key_len); + return -EINVAL; + } + if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && + param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && + param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { + if (param->u.crypt.idx >= WEP_KEYS) + return -EINVAL; + crypt = &ieee->crypt[param->u.crypt.idx]; + } else { + return -EINVAL; + } + + sec.flags |= SEC_ENABLED | SEC_ENCRYPT; + if (strcmp(param->u.crypt.alg, "none") == 0) { + if (crypt) { + sec.enabled = 0; + sec.encrypt = 0; + sec.level = SEC_LEVEL_0; + sec.flags |= SEC_LEVEL; + ieee80211_crypt_delayed_deinit(ieee, crypt); + } + goto done; + } + sec.enabled = 1; + sec.encrypt = 1; + + /* IPW HW cannot build TKIP MIC, host decryption still needed. */ + if (strcmp(param->u.crypt.alg, "TKIP") == 0) + ieee->host_encrypt_msdu = 1; + + if (!(ieee->host_encrypt || ieee->host_encrypt_msdu || + ieee->host_decrypt)) + goto skip_host_crypt; + + ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) { + request_module("ieee80211_crypt_wep"); + ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) { + request_module("ieee80211_crypt_tkip"); + ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) { + request_module("ieee80211_crypt_ccmp"); + ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + } + if (ops == NULL) { + IPW_DEBUG_INFO("%s: unknown crypto alg '%s'\n", + dev->name, param->u.crypt.alg); + param->u.crypt.err = IPW_CRYPT_ERR_UNKNOWN_ALG; + ret = -EINVAL; + goto done; + } + + if (*crypt == NULL || (*crypt)->ops != ops) { + struct ieee80211_crypt_data *new_crypt; + + ieee80211_crypt_delayed_deinit(ieee, crypt); + + new_crypt = (struct ieee80211_crypt_data *) + kmalloc(sizeof(*new_crypt), GFP_KERNEL); + if (new_crypt == NULL) { + ret = -ENOMEM; + goto done; + } + memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data)); + new_crypt->ops = ops; + if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) + new_crypt->priv = + new_crypt->ops->init(param->u.crypt.idx); + + if (new_crypt->priv == NULL) { + kfree(new_crypt); + param->u.crypt.err = IPW_CRYPT_ERR_CRYPT_INIT_FAILED; + ret = -EINVAL; + goto done; + } + + *crypt = new_crypt; + } + + if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key && + (*crypt)->ops->set_key(param->u.crypt.key, + param->u.crypt.key_len, param->u.crypt.seq, + (*crypt)->priv) < 0) { + IPW_DEBUG_INFO("%s: key setting failed\n", dev->name); + param->u.crypt.err = IPW_CRYPT_ERR_KEY_SET_FAILED; + ret = -EINVAL; + goto done; + } + + skip_host_crypt: + if (param->u.crypt.set_tx) { + ieee->tx_keyidx = param->u.crypt.idx; + sec.active_key = param->u.crypt.idx; + sec.flags |= SEC_ACTIVE_KEY; + } else + sec.flags &= ~SEC_ACTIVE_KEY; + + if (param->u.crypt.alg != NULL) { + memcpy(sec.keys[param->u.crypt.idx], + param->u.crypt.key, + param->u.crypt.key_len); + sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len; + sec.flags |= (1 << param->u.crypt.idx); + + if (strcmp(param->u.crypt.alg, "WEP") == 0) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; + } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_2; + } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_3; + } + } + done: + if (ieee->set_security) + ieee->set_security(ieee->dev, &sec); + + /* Do not reset port if card is in Managed mode since resetting will + * generate new IEEE 802.11 authentication which may end up in looping + * with IEEE 802.1X. If your hardware requires a reset after WEP + * configuration (for example... Prism2), implement the reset_port in + * the callbacks structures used to initialize the 802.11 stack. */ + if (ieee->reset_on_keychange && + ieee->iw_mode != IW_MODE_INFRA && + ieee->reset_port && + ieee->reset_port(dev)) { + IPW_DEBUG_INFO("%s: reset_port failed\n", dev->name); + param->u.crypt.err = IPW_CRYPT_ERR_CARD_CONF_FAILED; + return -EINVAL; + } + + return ret; +} + + +static int ipw_wpa_supplicant(struct net_device *dev, struct iw_point *p) +{ + struct ipw_param *param; + struct ipw_priv *priv = ieee80211_priv(dev); + int ret=0; + + IPW_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length); + + if (p->length < sizeof(struct ipw_param) || !p->pointer) + return -EINVAL; + + param = (struct ipw_param *)kmalloc(p->length, GFP_KERNEL); + if (param == NULL) + return -ENOMEM; + + if (copy_from_user(param, p->pointer, p->length)) { + kfree(param); + return -EFAULT; + } + + + down(&priv->sem); + switch (param->cmd) { + + case IPW_CMD_SET_WPA_PARAM: + ret = ipw_wpa_set_param(dev, param->u.wpa_param.name, + param->u.wpa_param.value); + break; + + case IPW_CMD_SET_WPA_IE: + ret = ipw_wpa_set_wpa_ie(dev, param, p->length); + break; + + case IPW_CMD_SET_ENCRYPTION: + ret = ipw_wpa_set_encryption(dev, param, p->length); + break; + + case IPW_CMD_MLME: + ret = ipw_wpa_mlme(dev, param->u.mlme.command, + param->u.mlme.reason_code); + break; + + default: + IPW_ERROR("%s: Unknown WPA supplicant request: %d\n", + dev->name, param->cmd); + ret = -EOPNOTSUPP; + } + + up (&priv->sem); + if (ret == 0 && copy_to_user(p->pointer, param, p->length)) + ret = -EFAULT; + + kfree(param); + return ret; +} +#else +/* + * WE-18 support + */ + +/* SIOCSIWGENIE */ +static int ipw_wx_set_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee; + u8 *buf; + int err = 0; + + if (wrqu->data.length > MAX_WPA_IE_LEN || + (wrqu->data.length && extra == NULL)) + return -EINVAL; + + //down(&priv->sem); + + //if (!ieee->wpa_enabled) { + // err = -EOPNOTSUPP; + // goto out; + //} + + if (wrqu->data.length) { + buf = kmalloc(wrqu->data.length, GFP_KERNEL); + if (buf == NULL) { + err = -ENOMEM; + goto out; + } + + memcpy(buf, extra, wrqu->data.length); + kfree(ieee->wpa_ie); + ieee->wpa_ie = buf; + ieee->wpa_ie_len = wrqu->data.length; + } else { + kfree(ieee->wpa_ie); + ieee->wpa_ie = NULL; + ieee->wpa_ie_len = 0; + } + + ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); +out: + //up(&priv->sem); + return err; +} + +/* SIOCGIWGENIE */ +static int ipw_wx_get_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee; + int err = 0; + + //down(&priv->sem); + + //if (!ieee->wpa_enabled) { + // err = -EOPNOTSUPP; + // goto out; + //} + + if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) { + wrqu->data.length = 0; + goto out; + } + + if (wrqu->data.length < ieee->wpa_ie_len) { + err = -E2BIG; + goto out; + } + + wrqu->data.length = ieee->wpa_ie_len; + memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len); + +out: + //up(&priv->sem); + return err; +} + +/* SIOCSIWAUTH */ +static int ipw_wx_set_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee; + struct iw_param *param = &wrqu->param; + int ret = 0; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * ipw2200 does not use these parameters + */ + break; + + case IW_AUTH_TKIP_COUNTERMEASURES: + ieee->tkip_countermeasures = param->value; + break; + + case IW_AUTH_DROP_UNENCRYPTED: { + /* HACK: + * + * wpa_supplicant calls set_wpa_enabled when the driver + * is loaded and unloaded, regardless of if WPA is being + * used. No other calls are made which can be used to + * determine if encryption will be used or not prior to + * association being expected. If encryption is not being + * used, drop_unencrypted is set to false, else true -- we + * can use this to determine if the CAP_PRIVACY_ON bit should + * be set. + */ + struct ieee80211_security sec = { + .flags = SEC_ENABLED, + .enabled = param->value, + }; + priv->ieee->drop_unencrypted = param->value; + /* We only change SEC_LEVEL for open mode. Others + * are set by ipw_wpa_set_encryption. + */ + if (!param->value) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_0; + } + else { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; + } + if (priv->ieee->set_security) + priv->ieee->set_security(priv->ieee->dev, &sec); + break; + } + + case IW_AUTH_80211_AUTH_ALG: + ret = ipw_wpa_set_auth_algs(priv, param->value); + break; + + case IW_AUTH_WPA_ENABLED: + ret = ipw_wpa_enable(priv, param->value); + break; + + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + ieee->ieee802_1x = param->value; + break; + + //case IW_AUTH_ROAMING_CONTROL: + case IW_AUTH_PRIVACY_INVOKED: + ieee->privacy_invoked = param->value; + break; + + default: + return -EOPNOTSUPP; + } + return ret; +} + +/* SIOCGIWAUTH */ +static int ipw_wx_get_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee; + struct iw_param *param = &wrqu->param; + int ret = 0; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * wpa_supplicant will control these internally + */ + ret = -EOPNOTSUPP; + break; + + case IW_AUTH_TKIP_COUNTERMEASURES: + param->value = ieee->tkip_countermeasures; + break; + + case IW_AUTH_DROP_UNENCRYPTED: + param->value = ieee->drop_unencrypted; + break; + + case IW_AUTH_80211_AUTH_ALG: + param->value = ieee->sec.auth_mode; + break; + + case IW_AUTH_WPA_ENABLED: + param->value = ieee->wpa_enabled; + break; + + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + param->value = ieee->ieee802_1x; + break; + + case IW_AUTH_ROAMING_CONTROL: + case IW_AUTH_PRIVACY_INVOKED: + param->value = ieee->privacy_invoked; + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} + +/* SIOCSIWENCODEEXT */ +static int ipw_wx_set_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + + if (hwcrypto) { + /* IPW HW can't build TKIP MIC, host decryption still needed*/ + if (ext->alg == IW_ENCODE_ALG_TKIP) { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 1; + priv->ieee->host_decrypt = 1; + } else { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 0; + priv->ieee->host_decrypt = 0; + } + } + + return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra); +} + +/* SIOCGIWENCODEEXT */ +static int ipw_wx_get_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra); +} + + +/* SIOCSIWMLME */ +static int ipw_wx_set_mlme(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct iw_mlme *mlme = (struct iw_mlme *)extra; + u16 reason; + + reason = cpu_to_le16(mlme->reason_code); + + switch (mlme->cmd) { + case IW_MLME_DEAUTH: + // silently ignore + break; + + case IW_MLME_DISASSOC: + ipw_disassociate(priv); + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} +#endif + +#ifdef CONFIG_IPW_QOS + +/* QoS */ +/* +* get the modulation type of the current network or +* the card current mode +*/ +u8 ipw_qos_current_mode(struct ipw_priv *priv) +{ + u8 mode = 0; + + if (priv->status & STATUS_ASSOCIATED){ + unsigned long flags; + + spin_lock_irqsave(&priv->ieee->lock, flags); + mode = priv->assoc_network->mode; + spin_unlock_irqrestore(&priv->ieee->lock, flags); + } + else { + mode = priv->ieee->mode; + } + IPW_DEBUG_QOS("QoS network/card mode %d \n", mode); + return mode; +} + + +/* +* Handle management frame beacon and probe response +*/ +static int ipw_qos_handle_probe_reponse(struct ipw_priv *priv, + int active_network, + struct ieee80211_network* network) +{ + u32 size = sizeof(struct ieee80211_qos_parameters); + + if (network->capability & WLAN_CAPABILITY_IBSS) + network->qos_data.active = network->qos_data.supported; + + if (network->flags & NETWORK_HAS_QOS_MASK) { + if (active_network && + (network->flags & NETWORK_HAS_QOS_PARAMETERS)) + network->qos_data.active = network->qos_data.supported; + + if ((network->qos_data.active == 1) && (active_network == 1) && + (network->flags & NETWORK_HAS_QOS_PARAMETERS) && + (network->qos_data.old_param_count != + network->qos_data.param_count)) { + network->qos_data.old_param_count = + network->qos_data.param_count; + schedule_work(&priv->qos_activate); + IPW_DEBUG_QOS("QoS parameters change call " + "qos_activate\n"); + } + } else { + if ((priv->ieee->mode == IEEE_B) || + (network->mode == IEEE_B)) + memcpy(&network->qos_data.parameters, + &def_parameters_CCK, size); + else + memcpy(&network->qos_data.parameters, + &def_parameters_OFDM, size); + + if ((network->qos_data.active == 1) && (active_network == 1)) { + IPW_DEBUG_QOS("QoS was disabled call qos_activate \n"); + schedule_work(&priv->qos_activate); + } + + network->qos_data.active = 0; + network->qos_data.supported = 0; + } + if ((priv->status & STATUS_ASSOCIATED) && + (priv->ieee->iw_mode == IW_MODE_ADHOC) && + (active_network == 0)) { + if (memcmp(network->bssid, priv->bssid, ETH_ALEN)) + if ((network->capability & WLAN_CAPABILITY_IBSS) && + !(network->flags & NETWORK_EMPTY_ESSID)) + if ((network->ssid_len == + priv->assoc_network->ssid_len) && + !memcmp(network->ssid, + priv->assoc_network->ssid, + network->ssid_len)) { + queue_work(priv->workqueue, + &priv->merge_networks); + } + } + + return 0; +} + +/* +* This function set up the firmware to support QoS. It sends +* IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO +*/ +static int ipw_qos_activate(struct ipw_priv *priv, struct ieee80211_qos_data *qos_network_data) +{ + int err; + struct ieee80211_qos_parameters qos_parameters[QOS_QOS_SETS]; + struct ieee80211_qos_parameters *active_one = NULL; + u32 size = sizeof(struct ieee80211_qos_parameters); + u32 burst_duration; + int i; + u8 type; + + type = ipw_qos_current_mode(priv); + + active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]); + memcpy(active_one , priv->qos_data.def_qos_parm_CCK, size); + active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]); + memcpy(active_one , priv->qos_data.def_qos_parm_OFDM, size); + + if (qos_network_data == NULL) { + if (type == IEEE_B) { + IPW_DEBUG_QOS("QoS activate network mode %d\n", type); + active_one = &def_parameters_CCK; + } else + active_one = &def_parameters_OFDM; + + memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); + burst_duration = ipw_qos_get_burst_duration (priv); + for (i = 0; i < QOS_QUEUE_NUM; i++) + qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] = + (u16)burst_duration; + } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + if (type == IEEE_B) { + IPW_DEBUG_QOS("QoS activate IBSS nework mode %d\n", + type); + if (priv->qos_data.qos_enable == 0) + active_one = &def_parameters_CCK; + else + active_one = priv->qos_data.def_qos_parm_CCK; + } else { + if (priv->qos_data.qos_enable == 0) + active_one = &def_parameters_OFDM; + else + active_one = priv->qos_data.def_qos_parm_OFDM; + } + memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); + } else { + unsigned long flags; + int active; + + spin_lock_irqsave(&priv->ieee->lock, flags); + active_one = &(qos_network_data->parameters); + qos_network_data->old_param_count = + qos_network_data->param_count; + memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); + active = qos_network_data->supported; + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + if (active == 0) { + burst_duration = ipw_qos_get_burst_duration(priv); + for (i = 0; i < QOS_QUEUE_NUM; i++) + qos_parameters[QOS_PARAM_SET_ACTIVE]. + tx_op_limit[i] = (u16) burst_duration; + } + } + + IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n"); + err = ipw_send_qos_params_command(priv, + (struct ieee80211_qos_parameters *)&(qos_parameters[0])); + if (err) + IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n"); + + return err; +} + + +/* +* send IPW_CMD_WME_INFO to the firmware +*/ +static int ipw_qos_set_info_element(struct ipw_priv *priv) +{ + int ret = 0; + struct ieee80211_qos_information_element qos_info; + + if(priv == NULL) + return -1; + + qos_info.elementID = QOS_ELEMENT_ID; + qos_info.length = sizeof(struct ieee80211_qos_information_element) -2; + + qos_info.version = QOS_VERSION_1; + qos_info.ac_info = 0; + + memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN); + qos_info.qui_type = QOS_OUI_TYPE; + qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE; + + ret = ipw_send_qos_info_command(priv,&qos_info); + if ( ret != 0){ + IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n"); + } + return ret; +} + + +/* +* Set the QoS parameter with the association request structure +*/ +static int ipw_qos_association(struct ipw_priv *priv, + struct ieee80211_network *network) + +{ + int err = 0; + struct ieee80211_qos_data *qos_data = NULL; + struct ieee80211_qos_data ibss_data = { + .supported = 1, + .active = 1, + }; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + if (!(network->capability & WLAN_CAPABILITY_IBSS)) + BUG(); + + qos_data = &ibss_data; + break; + + case IW_MODE_INFRA: + qos_data = &network->qos_data; + break; + + default: + BUG(); + break; + } + + err = ipw_qos_activate(priv, qos_data); + if (err) { + priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC; + return err; + } + + if (priv->qos_data.qos_enable && qos_data->supported) { + IPW_DEBUG_QOS("QoS will be enabled for this association\n"); + priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC; + return ipw_qos_set_info_element(priv); + } + + return 0; +} + +/* +* handling the beaconing responces. if we get different QoS setting +* of the network from the the associated setting adjust the QoS +* setting +*/ +static int ipw_qos_association_resp(struct ipw_priv *priv, struct ieee80211_network *network) +{ + int ret = 0; + unsigned long flags; + u32 size = sizeof(struct ieee80211_qos_parameters); + int set_qos_param = 0; + + if ((priv == NULL) || ( network == NULL) || + (priv->assoc_network == NULL)) + return ret; + + if (!(priv->status & STATUS_ASSOCIATED)) + return ret; + + if((priv->ieee->iw_mode != IW_MODE_INFRA)) + return ret; + + spin_lock_irqsave(&priv->ieee->lock, flags); + if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { + memcpy(&priv->assoc_network->qos_data, &network->qos_data, + sizeof(struct ieee80211_qos_data)); + priv->assoc_network->qos_data.active = 1; + if ((network->qos_data.old_param_count != + network->qos_data.param_count)){ + set_qos_param = 1; + network->qos_data.old_param_count = + network->qos_data.param_count; + } + + } else { + if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B)) + memcpy(&priv->assoc_network->qos_data.parameters, + &def_parameters_CCK, size); + else + memcpy(&priv->assoc_network->qos_data.parameters, + &def_parameters_OFDM, size); + priv->assoc_network->qos_data.active = 0; + priv->assoc_network->qos_data.supported = 0; + set_qos_param = 1; + } + + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + if (set_qos_param == 1) + schedule_work(&priv->qos_activate); + + return ret; +} + +static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv) +{ + u32 ret = 0; + + if ((priv == NULL)) + return 0; + + if (!(priv->ieee->modulation & IEEE80211_OFDM_MODULATION)) + ret = priv->qos_data.burst_duration_CCK; + else + ret = priv->qos_data.burst_duration_OFDM; + + return ret; +} + +/* +* Initialize the setting of QoS global +*/ +static void ipw_qos_init(struct ipw_priv *priv, int enable, + int burst_enable, u32 burst_duration_CCK, + u32 burst_duration_OFDM) +{ + priv->qos_data.qos_enable = enable; + + if (priv->qos_data.qos_enable) { + priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK; + priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM; + IPW_DEBUG_QOS("QoS is enabled\n"); + } else { + priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK; + priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM; + IPW_DEBUG_QOS("QoS is not enabled\n"); + } + + priv->qos_data.burst_enable = burst_enable; + + if (burst_enable) { + priv->qos_data.burst_duration_CCK = burst_duration_CCK; + priv->qos_data.burst_duration_OFDM = burst_duration_OFDM; + } else { + priv->qos_data.burst_duration_CCK = 0; + priv->qos_data.burst_duration_OFDM = 0; + } +} + +/* +* map the packet priority to the right TX Queue +*/ +static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority) +{ + if (priority > 7 || !priv->qos_data.qos_enable) + priority = 0; + + return from_priority_to_tx_queue[priority] - 1; +} + +/* +* add QoS parameter to the TX command +*/ +static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv, + u16 priority, + struct tfd_data *tfd, + u8 unicast) +{ + int ret = 0; + int tx_queue_id = 0; + struct ieee80211_qos_data *qos_data = NULL; + int active, supported; + unsigned long flags; + + if (!(priv->status & STATUS_ASSOCIATED)) + return 0; + + qos_data = &priv->assoc_network->qos_data; + + spin_lock_irqsave(&priv->ieee->lock, flags); + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + if (unicast == 0) + qos_data->active = 0; + else + qos_data->active = qos_data->supported; + } + + active = qos_data->active ; + supported = qos_data->supported; + + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d " + "unicast %d\n", + priv->qos_data.qos_enable, active, supported, unicast); + if (active && priv->qos_data.qos_enable) { + ret = from_priority_to_tx_queue[priority]; + tx_queue_id = ret - 1; + IPW_DEBUG_QOS("QoS packet priority is %d \n", priority); + if (priority <= 7) { + tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED; + tfd->tfd.tfd_26.mchdr.qos_ctrl = priority; + tfd->tfd.tfd_26.mchdr.frame_ctl |= + IEEE80211_STYPE_QOS_DATA; + + if (priv->qos_data.qos_no_ack_mask & + (1UL << tx_queue_id)) { + tfd->tx_flags &= ~DCT_FLAG_ACK_REQD; + tfd->tfd.tfd_26.mchdr.qos_ctrl |= + CTRL_QOS_NO_ACK; + } + } + } + + return ret; +} + +/* +* background support to run QoS activate functionality +*/ +static void ipw_bg_qos_activate(void *data) +{ + struct ipw_priv *priv = data; + + if (priv == NULL) + return; + + down(&priv->sem); + + if (priv->status & STATUS_ASSOCIATED) + ipw_qos_activate(priv, &(priv->assoc_network->qos_data)); + + up(&priv->sem); +} + +/* +* Handler for probe responce and beacon frame +*/ +static int ipw_handle_management_frame(struct net_device *dev, + struct ieee80211_network* network, + u16 type) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int active_network; + + if (priv->status & STATUS_ASSOCIATED && network == priv->assoc_network) + active_network = 1; + else + active_network = 0; + + switch (type) { + case IEEE80211_STYPE_PROBE_RESP: + case IEEE80211_STYPE_BEACON: + ipw_qos_handle_probe_reponse(priv , active_network, network); + break; + case IEEE80211_STYPE_ASSOC_RESP: + ipw_qos_association_resp(priv, network); + break; + default : + break; + } + + return 0; +} + +static int ipw_send_qos_params_command(struct ipw_priv *priv, + struct ieee80211_qos_parameters + *qos_param) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_QOS_PARAMETERS, + .len = (sizeof(struct ieee80211_qos_parameters) * 3) + }; + + if (!priv || !qos_param) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, qos_param, sizeof(*qos_param) * 3); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send IPW_CMD_QOS_PARAMETERS command\n"); + return -1; + } + + return 0; +} + + +static int ipw_send_qos_info_command(struct ipw_priv *priv,struct ieee80211_qos_information_element *qos_param) +{ + struct host_cmd cmd = { + .cmd = IPW_CMD_WME_INFO, + .len = sizeof(*qos_param) + }; + + if (!priv || !qos_param) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + memcpy(cmd.param, qos_param, sizeof(*qos_param)); + if (ipw_send_cmd(priv, &cmd)) { + IPW_ERROR("failed to send CMD_QOS_INFO command\n"); + return -1; + } + + return 0; +} + +#endif /* CONFIG_IPW_QOS */ + + +static int ipw_associate_network(struct ipw_priv *priv, + struct ieee80211_network *network, + struct ipw_supported_rates *rates, + int roaming) +{ + int err; + + if (priv->config & CFG_FIXED_RATE) + ipw_set_fixed_rate(priv, network->mode); + + if (!(priv->config & CFG_STATIC_ESSID)) { + priv->essid_len = min(network->ssid_len, + (u8)IW_ESSID_MAX_SIZE); + memcpy(priv->essid, network->ssid, priv->essid_len); + } + + network->last_associate = jiffies; + + memset(&priv->assoc_request, 0, sizeof(priv->assoc_request)); + priv->assoc_request.channel = network->channel; + if ((priv->capability & CAP_PRIVACY_ON) && + (priv->capability & CAP_SHARED_KEY)) { + priv->assoc_request.auth_type = AUTH_SHARED_KEY; + priv->assoc_request.auth_key = priv->ieee->sec.active_key; + + if ((priv->capability & CAP_PRIVACY_ON) && + (priv->ieee->sec.level == SEC_LEVEL_1) && + !(priv->ieee->host_encrypt || priv->ieee->host_decrypt)) + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); + } else { + priv->assoc_request.auth_type = AUTH_OPEN; + priv->assoc_request.auth_key = 0; + } + + if (priv->ieee->wpa_ie_len) { + priv->assoc_request.policy_support = 0x02; /* RSN active */ + ipw_set_rsn_capa(priv, priv->ieee->wpa_ie, priv->ieee->wpa_ie_len); + } + + /* + * It is valid for our ieee device to support multiple modes, but + * when it comes to associating to a given network we have to choose + * just one mode. + */ + if (network->mode & priv->ieee->mode & IEEE_A) + priv->assoc_request.ieee_mode = IPW_A_MODE; + else if (network->mode & priv->ieee->mode & IEEE_G) + priv->assoc_request.ieee_mode = IPW_G_MODE; + else if (network->mode & priv->ieee->mode & IEEE_B) + priv->assoc_request.ieee_mode = IPW_B_MODE; + + priv->assoc_request.capability = network->capability; + if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) + && !(priv->config & CFG_PREAMBLE_LONG)) { + priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE; + } else { + priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE; + + /* Clear the short preamble if we won't be supporting it */ + priv->assoc_request.capability &= + ~WLAN_CAPABILITY_SHORT_PREAMBLE; + } + + /* Clear capability bits that aren't used in Ad Hoc */ + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + priv->assoc_request.capability &= ~WLAN_CAPABILITY_SHORT_SLOT; + + IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, " + "802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n", + roaming ? "Rea" : "A", + escape_essid(priv->essid, priv->essid_len), + network->channel, + ipw_modes[priv->assoc_request.ieee_mode], + rates->num_rates, + (priv->assoc_request.preamble_length == + DCT_FLAG_LONG_PREAMBLE) ? "long" : "short", + network->capability & + WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long", + priv->capability & CAP_PRIVACY_ON ? "on " : "off", + priv->capability & CAP_PRIVACY_ON ? + (priv->capability & CAP_SHARED_KEY ? "(shared)" : + "(open)") : "", + priv->capability & CAP_PRIVACY_ON ? " key=" : "", + priv->capability & CAP_PRIVACY_ON ? + '1' + priv->ieee->sec.active_key : '.', + priv->capability & CAP_PRIVACY_ON ? + '.' : ' '); + + priv->assoc_request.beacon_interval = network->beacon_interval; + if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && + (network->time_stamp[0] == 0) && + (network->time_stamp[1] == 0)) { + priv->assoc_request.assoc_type = HC_IBSS_START; + priv->assoc_request.assoc_tsf_msw = 0; + priv->assoc_request.assoc_tsf_lsw = 0; + } else { + if (unlikely(roaming)) + priv->assoc_request.assoc_type = HC_REASSOCIATE; + else + priv->assoc_request.assoc_type = HC_ASSOCIATE; + priv->assoc_request.assoc_tsf_msw = network->time_stamp[1]; + priv->assoc_request.assoc_tsf_lsw = network->time_stamp[0]; + } + + memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN); + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN); + priv->assoc_request.atim_window = network->atim_window; + } else { + memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN); + priv->assoc_request.atim_window = 0; + } + + priv->assoc_request.listen_interval = network->listen_interval; + + err = ipw_send_ssid(priv, priv->essid, priv->essid_len); + if (err) { + IPW_DEBUG_HC("Attempt to send SSID command failed.\n"); + return err; + } + + rates->ieee_mode = priv->assoc_request.ieee_mode; + rates->purpose = IPW_RATE_CONNECT; + ipw_send_supported_rates(priv, rates); + + if (priv->assoc_request.ieee_mode == IPW_G_MODE) + priv->sys_config.dot11g_auto_detection = 1; + else + priv->sys_config.dot11g_auto_detection = 0; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + priv->sys_config.answer_broadcast_ssid_probe = 1; + else + priv->sys_config.answer_broadcast_ssid_probe = 0; + + err = ipw_send_system_config(priv, &priv->sys_config); + if (err) { + IPW_DEBUG_HC("Attempt to send sys config command failed.\n"); + return err; + } + + IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi); + err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM); + if (err) { + IPW_DEBUG_HC("Attempt to send associate command failed.\n"); + return err; + } + + /* + * If preemption is enabled, it is possible for the association + * to complete before we return from ipw_send_associate. Therefore + * we have to be sure and update our priviate data first. + */ + priv->channel = network->channel; + memcpy(priv->bssid, network->bssid, ETH_ALEN); + priv->status |= STATUS_ASSOCIATING; + priv->status &= ~STATUS_SECURITY_UPDATED; + + priv->assoc_network = network; + +#ifdef CONFIG_IPW_QOS + ipw_qos_association(priv, network); +#endif + + err = ipw_send_associate(priv, &priv->assoc_request); + if (err) { + IPW_DEBUG_HC("Attempt to send associate command failed.\n"); + return err; + } + + IPW_DEBUG(IPW_DL_STATE, "associating: '%s' " MAC_FMT " \n", + escape_essid(priv->essid, priv->essid_len), + MAC_ARG(priv->bssid)); + + return 0; +} + +static void ipw_roam(void *data) +{ + struct ipw_priv *priv = data; + struct ieee80211_network *network = NULL; + struct ipw_network_match match = { + .network = priv->assoc_network + }; + + /* The roaming process is as follows: + * + * 1. Missed beacon threshold triggers the roaming process by + * setting the status ROAM bit and requesting a scan. + * 2. When the scan completes, it schedules the ROAM work + * 3. The ROAM work looks at all of the known networks for one that + * is a better network than the currently associated. If none + * found, the ROAM process is over (ROAM bit cleared) + * 4. If a better network is found, a disassociation request is + * sent. + * 5. When the disassociation completes, the roam work is again + * scheduled. The second time through, the driver is no longer + * associated, and the newly selected network is sent an + * association request. + * 6. At this point ,the roaming process is complete and the ROAM + * status bit is cleared. + */ + + /* If we are no longer associated, and the roaming bit is no longer + * set, then we are not actively roaming, so just return */ + if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING))) + return; + + if (priv->status & STATUS_ASSOCIATED) { + /* First pass through ROAM process -- look for a better + * network */ + unsigned long flags; + u8 rssi = priv->assoc_network->stats.rssi; + priv->assoc_network->stats.rssi = -128; + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_entry(network, &priv->ieee->network_list, list) { + if (network != priv->assoc_network) + ipw_best_network(priv, &match, network, 1); + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); + priv->assoc_network->stats.rssi = rssi; + + if (match.network == priv->assoc_network) { + IPW_DEBUG_ASSOC("No better APs in this network to " + "roam to.\n"); + priv->status &= ~STATUS_ROAMING; + ipw_debug_config(priv); + return; + } + + ipw_send_disassociate(priv, 1); + priv->assoc_network = match.network; + + return; + } + + /* Second pass through ROAM process -- request association */ + ipw_compatible_rates(priv, priv->assoc_network, &match.rates); + ipw_associate_network(priv, priv->assoc_network, &match.rates, 1); + priv->status &= ~STATUS_ROAMING; +} + + +static void ipw_bg_roam(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_roam(data); + up(&priv->sem); +} + + +static int ipw_associate(void *data) +{ + struct ipw_priv *priv = data; + + struct ieee80211_network *network = NULL; + struct ipw_network_match match = { + .network = NULL + }; + struct ipw_supported_rates *rates; + struct list_head *element; + unsigned long flags; + + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n"); + return 0; + } + + if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { + IPW_DEBUG_ASSOC("Not attempting association (already in " + "progress)\n"); + return 0; + } + + if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) { + IPW_DEBUG_ASSOC("Not attempting association (scanning or not " + "initialized)\n"); + return 0; + } + + if (!(priv->config & CFG_ASSOCIATE) && + !(priv->config & (CFG_STATIC_ESSID | + CFG_STATIC_CHANNEL | + CFG_STATIC_BSSID))) { + IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n"); + return 0; + } + + /* Protect our use of the network_list */ + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_entry(network, &priv->ieee->network_list, list) + ipw_best_network(priv, &match, network, 0); + + network = match.network; + rates = &match.rates; + + if (network == NULL && + priv->ieee->iw_mode == IW_MODE_ADHOC && + priv->config & CFG_ADHOC_CREATE && + priv->config & CFG_STATIC_ESSID && + priv->config & CFG_STATIC_CHANNEL && + !list_empty(&priv->ieee->network_free_list)) { + element = priv->ieee->network_free_list.next; + network = list_entry(element, struct ieee80211_network, + list); + ipw_adhoc_create(priv, network); + rates = &priv->rates; + list_del(element); + list_add_tail(&network->list, &priv->ieee->network_list); + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + /* If we reached the end of the list, then we don't have any valid + * matching APs */ + if (!network) { + ipw_debug_config(priv); + + if (!(priv->status & STATUS_SCANNING)) { + if (!(priv->config & CFG_SPEED_SCAN)) + queue_delayed_work(priv->workqueue, + &priv->request_scan, + SCAN_INTERVAL); + else + queue_work(priv->workqueue, + &priv->request_scan); + } + + return 0; + } + + ipw_associate_network(priv, network, rates, 0); + + return 1; +} + +static void ipw_bg_associate(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_associate(data); + up(&priv->sem); +} + + +static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv, + struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr; + u16 fc; + + hdr = (struct ieee80211_hdr *)skb->data; + fc = le16_to_cpu(hdr->frame_ctl); + if (!(fc & IEEE80211_FCTL_WEP)) + return; + + fc &= ~IEEE80211_FCTL_WEP; + hdr->frame_ctl = cpu_to_le16(fc); + switch (priv->ieee->sec.level) { + case SEC_LEVEL_3: + /* Remove CCMP HDR */ + memmove(skb->data + IEEE80211_3ADDR_LEN, + skb->data + IEEE80211_3ADDR_LEN + 8, + skb->len - IEEE80211_3ADDR_LEN - 8); + if (fc & IEEE80211_FCTL_MOREFRAGS) + skb_trim(skb, skb->len - 16); /* 2*MIC */ + else + skb_trim(skb, skb->len - 8); /* MIC */ + break; + case SEC_LEVEL_2: + break; + case SEC_LEVEL_1: + /* Remove IV */ + memmove(skb->data + IEEE80211_3ADDR_LEN, + skb->data + IEEE80211_3ADDR_LEN + 4, + skb->len - IEEE80211_3ADDR_LEN - 4); + if (fc & IEEE80211_FCTL_MOREFRAGS) + skb_trim(skb, skb->len - 8); /* 2*ICV */ + else + skb_trim(skb, skb->len - 4); /* ICV */ + break; + case SEC_LEVEL_0: + break; + default: + printk(KERN_ERR "Unknow security level %d\n", + priv->ieee->sec.level); + break; + } +} + +static void ipw_handle_data_packet(struct ipw_priv *priv, + struct ipw_rx_mem_buffer *rxb, + struct ieee80211_rx_stats *stats) +{ + struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; + + /* We received data from the HW, so stop the watchdog */ + priv->net_dev->trans_start = jiffies; + + /* We only process data packets if the + * interface is open */ + if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > + skb_tailroom(rxb->skb))) { + priv->ieee->stats.rx_errors++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); + return; + } else if (unlikely(!netif_running(priv->net_dev))) { + priv->ieee->stats.rx_dropped++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); + return; + } + + /* Advance skb->data to the start of the actual payload */ + skb_reserve(rxb->skb, IPW_RX_FRAME_SIZE); + + /* Set the size of the skb to the size of the frame */ + skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length)); + + IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); + + /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */ + if (!priv->ieee->host_decrypt) + ipw_rebuild_decrypted_skb(priv, rxb->skb); + + if (!ieee80211_rx(priv->ieee, rxb->skb, stats)) + priv->ieee->stats.rx_errors++; + else {/* ieee80211_rx succeeded, so it now owns the SKB */ + rxb->skb = NULL; + __ipw_led_activity_on(priv); + } +} + +static inline int is_network_packet(struct ipw_priv *priv, + struct ieee80211_hdr *header) +{ + /* Filter incoming packets to determine if they are targetted toward + * this network, discarding packets coming from ourselves */ + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */ + /* packets from our adapter are dropped (echo) */ + if (!memcmp(header->addr2, priv->net_dev->dev_addr, ETH_ALEN)) + return 0; + + /* multicast packets to our IBSS go through */ + if (is_multicast_ether_addr(header->addr1)) + return !memcmp(header->addr3, priv->bssid, ETH_ALEN); + + /* packets to our adapter go through */ + return !memcmp(header->addr1, priv->net_dev->dev_addr, + ETH_ALEN); + + case IW_MODE_INFRA: /* Header: Dest. | AP{BSSID} | Source */ + /* packets from our adapter are dropped (echo) */ + if (!memcmp(header->addr3, priv->net_dev->dev_addr, ETH_ALEN)) + return 0; + + /* {broad,multi}cast packets to our IBSS go through */ + if (is_multicast_ether_addr(header->addr1)) + return !memcmp(header->addr2, priv->bssid, ETH_ALEN); + + /* packets to our adapter go through */ + return !memcmp(header->addr1, priv->net_dev->dev_addr, + ETH_ALEN); + } + + return 1; +} + +#define IPW_PACKET_RETRY_TIME HZ + +static inline int is_duplicate_packet(struct ipw_priv *priv, + struct ieee80211_hdr *header) +{ + u16 fc = le16_to_cpu(header->frame_ctl); + u16 sc = le16_to_cpu(header->seq_ctl); + u16 seq = WLAN_GET_SEQ_SEQ(sc); + u16 frag = WLAN_GET_SEQ_FRAG(sc); + u16 *last_seq, *last_frag; + unsigned long *last_time; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + { + struct list_head *p; + struct ipw_ibss_seq *entry = NULL; + u8 *mac = header->addr2; + int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE; + + __list_for_each(p, &priv->ibss_mac_hash[index]) { + entry = list_entry(p, struct ipw_ibss_seq, list); + if (!memcmp(entry->mac, mac, ETH_ALEN)) + break; + } + if (p == &priv->ibss_mac_hash[index]) { + entry = kmalloc(sizeof(*entry), GFP_ATOMIC); + if (!entry) { + IPW_ERROR("Cannot malloc new mac entry\n"); + return 0; + } + memcpy(entry->mac, mac, ETH_ALEN); + entry->seq_num = seq; + entry->frag_num = frag; + entry->packet_time = jiffies; + list_add(&entry->list, &priv->ibss_mac_hash[index]); + return 0; + } + last_seq = &entry->seq_num; + last_frag = &entry->frag_num; + last_time = &entry->packet_time; + break; + } + case IW_MODE_INFRA: + last_seq = &priv->last_seq_num; + last_frag = &priv->last_frag_num; + last_time = &priv->last_packet_time; + break; + default: + return 0; + } + if ((*last_seq == seq) && + time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) { + if (*last_frag == frag) + goto drop; + if (*last_frag + 1 != frag) + /* out-of-order fragment */ + goto drop; + } else + *last_seq = seq; + + *last_frag = frag; + *last_time = jiffies; + return 0; + +drop: + BUG_ON(!(fc & IEEE80211_FCTL_RETRY)); + return 1; +} + +static void ipw_handle_mgmt_packet(struct ipw_priv *priv, + struct ipw_rx_mem_buffer *rxb, + struct ieee80211_rx_stats *stats) +{ + struct sk_buff *skb = rxb->skb; + struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data; + struct ieee80211_hdr *header = (struct ieee80211_hdr *) + (skb->data + IPW_RX_FRAME_SIZE); + + ieee80211_rx_mgt(priv->ieee, header, stats); + + if (priv->ieee->iw_mode == IW_MODE_ADHOC && + ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == + IEEE80211_STYPE_PROBE_RESP) || + (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == + IEEE80211_STYPE_BEACON))) { + if (!memcmp(header->addr3, priv->bssid, ETH_ALEN)) + ipw_add_station(priv, header->addr2); + } + + if (priv->config & CFG_NET_STATS) { + IPW_DEBUG_HC("sending stat packet\n"); + + /* Set the size of the skb to the size of the full + * ipw header and 802.11 frame */ + skb_put(skb, le16_to_cpu(pkt->u.frame.length) + + IPW_RX_FRAME_SIZE); + + /* Advance past the ipw packet header to the 802.11 frame */ + skb_pull(skb, IPW_RX_FRAME_SIZE); + + /* Push the ieee80211_rx_stats before the 802.11 frame */ + memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats)); + + skb->dev = priv->ieee->dev; + + /* Point raw at the ieee80211_stats */ + skb->mac.raw = skb->data; + + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = __constant_htons(ETH_P_80211_STATS); + memset(skb->cb, 0, sizeof(rxb->skb->cb)); + netif_rx(skb); + rxb->skb = NULL; + } +} + + +/* + * Main entry function for recieving a packet with 80211 headers. This + * should be called when ever the FW has notified us that there is a new + * skb in the recieve queue. + */ +static void ipw_rx(struct ipw_priv *priv) +{ + struct ipw_rx_mem_buffer *rxb; + struct ipw_rx_packet *pkt; + struct ieee80211_hdr *header; + u32 r, w, i; + u8 network_packet; + + r = ipw_read32(priv, IPW_RX_READ_INDEX); + w = ipw_read32(priv, IPW_RX_WRITE_INDEX); + i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE; + + while (i != r) { + rxb = priv->rxq->queue[i]; +#ifdef CONFIG_IPW_DEBUG + if (unlikely(rxb == NULL)) { + printk(KERN_CRIT "Queue not allocated!\n"); + break; + } +#endif + priv->rxq->queue[i] = NULL; + + pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr, + IPW_RX_BUF_SIZE, + PCI_DMA_FROMDEVICE); + + pkt = (struct ipw_rx_packet *)rxb->skb->data; + IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n", + pkt->header.message_type, + pkt->header.rx_seq_num, + pkt->header.control_bits); + + switch (pkt->header.message_type) { + case RX_FRAME_TYPE: /* 802.11 frame */ { + struct ieee80211_rx_stats stats = { + .rssi = le16_to_cpu(pkt->u.frame.rssi_dbm) - + IPW_RSSI_TO_DBM, + .signal = le16_to_cpu(pkt->u.frame.signal), + .noise = le16_to_cpu(pkt->u.frame.noise), + .rate = pkt->u.frame.rate, + .mac_time = jiffies, + .received_channel = + pkt->u.frame.received_channel, + .freq = (pkt->u.frame.control & (1<<0)) ? + IEEE80211_24GHZ_BAND : IEEE80211_52GHZ_BAND, + .len = le16_to_cpu(pkt->u.frame.length), + }; + + if (stats.rssi != 0) + stats.mask |= IEEE80211_STATMASK_RSSI; + if (stats.signal != 0) + stats.mask |= IEEE80211_STATMASK_SIGNAL; + if (stats.noise != 0) + stats.mask |= IEEE80211_STATMASK_NOISE; + if (stats.rate != 0) + stats.mask |= IEEE80211_STATMASK_RATE; + + priv->rx_packets++; + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + ipw_handle_data_packet(priv, rxb, &stats); + break; + } +#endif + + header = (struct ieee80211_hdr *)(rxb->skb->data + + IPW_RX_FRAME_SIZE); + /* TODO: Check Ad-Hoc dest/source and make sure + * that we are actually parsing these packets + * correctly -- we should probably use the + * frame control of the packet and disregard + * the current iw_mode */ + + network_packet = is_network_packet(priv, header); + if (network_packet && priv->assoc_network) { + priv->assoc_network->stats.rssi = stats.rssi; + average_add(&priv->average_rssi, + stats.rssi); + priv->last_rx_rssi = stats.rssi; + } + + IPW_DEBUG_RX("Frame: len=%u\n", + le16_to_cpu(pkt->u.frame.length)); + + if (le16_to_cpu(pkt->u.frame.length) < + frame_hdr_len(header)) { + IPW_DEBUG_DROP("Received packet is too small. " + "Dropping.\n"); + priv->ieee->stats.rx_errors++; + priv->wstats.discard.misc++; + break; + } + + switch (WLAN_FC_GET_TYPE( + le16_to_cpu(header->frame_ctl))) { + + case IEEE80211_FTYPE_MGMT: + ipw_handle_mgmt_packet(priv, rxb, &stats); + break; + + case IEEE80211_FTYPE_CTL: + break; + + case IEEE80211_FTYPE_DATA: + if (unlikely(!network_packet || + is_duplicate_packet(priv, header))) { + IPW_DEBUG_DROP( + "Dropping: " MAC_FMT ", " + MAC_FMT ", " MAC_FMT "\n", + MAC_ARG(header->addr1), + MAC_ARG(header->addr2), + MAC_ARG(header->addr3)); + break; + } + + ipw_handle_data_packet(priv, rxb, &stats); + + break; + } + break; + } + + case RX_HOST_NOTIFICATION_TYPE: { + IPW_DEBUG_RX("Notification: subtype=%02X flags=%02X size=%d\n", + pkt->u.notification.subtype, + pkt->u.notification.flags, + pkt->u.notification.size); + ipw_rx_notification(priv, &pkt->u.notification); + break; + } + + default: + IPW_DEBUG_RX("Bad Rx packet of type %d\n", + pkt->header.message_type); + break; + } + + /* For now we just don't re-use anything. We can tweak this + * later to try and re-use notification packets and SKBs that + * fail to Rx correctly */ + if (rxb->skb != NULL) { + dev_kfree_skb_any(rxb->skb); + rxb->skb = NULL; + } + + pci_unmap_single(priv->pci_dev, rxb->dma_addr, + IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE); + list_add_tail(&rxb->list, &priv->rxq->rx_used); + + i = (i + 1) % RX_QUEUE_SIZE; + } + + /* Backtrack one entry */ + priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1; + + ipw_rx_queue_restock(priv); +} + +#define DEFAULT_RTS_THRESHOLD 2304U +#define MIN_RTS_THRESHOLD 1U +#define MAX_RTS_THRESHOLD 2304U +#define DEFAULT_BEACON_INTERVAL 100U +#define DEFAULT_SHORT_RETRY_LIMIT 7U +#define DEFAULT_LONG_RETRY_LIMIT 4U + + + +static int ipw_sw_reset(struct ipw_priv *priv, int init) +{ + int band, modulation; + int old_mode = priv->ieee->iw_mode; + + /* Initialize module parameter values here */ + priv->config = 0; + + /* We default to disabling the LED code as right now it causes + * too many systems to lock up... */ + if (!led) + priv->config |= CFG_NO_LED; + + if (associate) + priv->config |= CFG_ASSOCIATE; + else + IPW_DEBUG_INFO("Auto associate disabled.\n"); + + if (auto_create) + priv->config |= CFG_ADHOC_CREATE; + else + IPW_DEBUG_INFO("Auto adhoc creation disabled.\n"); + + if (disable) { + priv->status |= STATUS_RF_KILL_SW; + IPW_DEBUG_INFO("Radio disabled.\n"); + } + + if (channel != 0) { + priv->config |= CFG_STATIC_CHANNEL; + priv->channel = channel; + IPW_DEBUG_INFO("Bind to static channel %d\n", channel); + /* TODO: Validate that provided channel is in range */ + } + +#ifdef CONFIG_IPW_QOS + ipw_qos_init(priv, qos_enable, qos_burst_enable, + burst_duration_CCK, burst_duration_OFDM); +#endif /* CONFIG_IPW_QOS */ + + switch (mode) { + case 1: + priv->ieee->iw_mode = IW_MODE_ADHOC; + priv->net_dev->type = ARPHRD_ETHER; + + break; +#ifdef CONFIG_IPW2200_MONITOR + case 2: + priv->ieee->iw_mode = IW_MODE_MONITOR; + priv->net_dev->type = ARPHRD_IEEE80211; + break; +#endif + default: + case 0: + priv->net_dev->type = ARPHRD_ETHER; + priv->ieee->iw_mode = IW_MODE_INFRA; + break; + } + + if (hwcrypto) { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 0; + priv->ieee->host_decrypt = 0; + } + IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off"); + + if ((priv->pci_dev->device == 0x4223) || + (priv->pci_dev->device == 0x4224)) { + if (init) + printk(KERN_INFO DRV_NAME + ": Detected Intel PRO/Wireless 2915ABG Network " + "Connection\n"); + priv->ieee->abg_true = 1; + band = IEEE80211_52GHZ_BAND | IEEE80211_24GHZ_BAND; + modulation = IEEE80211_OFDM_MODULATION | + IEEE80211_CCK_MODULATION; + priv->adapter = IPW_2915ABG; + priv->ieee->mode = IEEE_A|IEEE_G|IEEE_B; + } else { + if (init) + printk(KERN_INFO DRV_NAME + ": Detected Intel PRO/Wireless 2200BG Network " + "Connection\n"); + + priv->ieee->abg_true = 0; + band = IEEE80211_24GHZ_BAND; + modulation = IEEE80211_OFDM_MODULATION | + IEEE80211_CCK_MODULATION; + priv->adapter = IPW_2200BG; + priv->ieee->mode = IEEE_G|IEEE_B; + } + + priv->ieee->freq_band = band; + priv->ieee->modulation = modulation; + priv->ieee->geography = IEEE80211_GEO_001; + + priv->rates_mask = IEEE80211_DEFAULT_RATES_MASK; + + priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; + priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; + + priv->rts_threshold = DEFAULT_RTS_THRESHOLD; + priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT; + priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT; + + /* If power management is turned on, default to AC mode */ + priv->power_mode = IPW_POWER_AC; + priv->tx_power = IPW_TX_POWER_DEFAULT; + + return old_mode == priv->ieee->mode; +} + + +/* + * This file defines the Wireless Extension handlers. It does not + * define any methods of hardware manipulation and relies on the + * functions defined in ipw_main to provide the HW interaction. + * + * The exception to this is the use of the ipw_get_ordinal() + * function used to poll the hardware vs. making unecessary calls. + * + */ + +static int ipw_wx_get_name(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + if (priv->status & STATUS_RF_KILL_MASK) + strcpy(wrqu->name, "radio off"); + else if (!(priv->status & STATUS_ASSOCIATED)) + strcpy(wrqu->name, "unassociated"); + else + snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11%c", + ipw_modes[priv->assoc_request.ieee_mode]); + IPW_DEBUG_WX("Name: %s\n", wrqu->name); + up(&priv->sem); + return 0; +} + +static int ipw_set_channel(struct ipw_priv *priv, u8 channel) +{ + if (channel == 0) { + IPW_DEBUG_INFO("Setting channel to ANY (0)\n"); + priv->config &= ~CFG_STATIC_CHANNEL; + IPW_DEBUG_ASSOC("Attempting to associate with new " + "parameters.\n"); + ipw_associate(priv); + return 0; + } + + priv->config |= CFG_STATIC_CHANNEL; + + if (priv->channel == channel) { + IPW_DEBUG_INFO( + "Request to set channel to current value (%d)\n", + channel); + return 0; + } + + IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel); + priv->channel = channel; + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + int i; + + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_SCAN("scan abort triggered due to " + "channel change.\n"); + ipw_abort_scan(priv); + } + + for (i = 1000; i && (priv->status & STATUS_SCANNING); i--) + udelay(10); + + if (priv->status & STATUS_SCANNING) + IPW_DEBUG_SCAN("Still scanning...\n"); + else + IPW_DEBUG_SCAN("Took %dms to abort current scan\n", 1000 - i); + + return 0; + } +#endif /* CONFIG_IPW2200_MONITOR */ + + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + return 0; +} + +static int ipw_wx_set_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee); + struct iw_freq *fwrq = &wrqu->freq; + int ret = 0, i; + u8 channel; + + if (fwrq->m == 0) { + IPW_DEBUG_WX("SET Freq/Channel -> any\n"); + down(&priv->sem); + ret = ipw_set_channel(priv, 0); + up(&priv->sem); + return ret; + } + /* if setting by freq convert to channel */ + if (fwrq->e == 1) { + channel = ieee80211_freq_to_channel(priv->ieee, fwrq->m); + if (channel == 0) + return -EINVAL; + } else + channel = fwrq->m; + + if (!ieee80211_is_valid_channel(priv->ieee, channel)) + return -EINVAL; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC && + priv->ieee->mode & IEEE_A) { + i = ieee80211_channel_to_index(priv->ieee, channel); + if (i == -1) + return -EINVAL; + if (geo->a[i].passive_only) { + IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n"); + return -EINVAL; + } + } + + IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m); + down(&priv->sem); + ret = ipw_set_channel(priv, channel); + up(&priv->sem); + return ret; +} + + +static int ipw_wx_get_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + wrqu->freq.e = 0; + + /* If we are associated, trying to associate, or have a statically + * configured CHANNEL then return that; otherwise return ANY */ + down(&priv->sem); + if (priv->config & CFG_STATIC_CHANNEL || + priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) + wrqu->freq.m = priv->channel; + else + wrqu->freq.m = 0; + + up(&priv->sem); + IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel); + return 0; +} + +static int ipw_wx_set_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int err = 0; + + IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode); + + switch (wrqu->mode) { +#ifdef CONFIG_IPW2200_MONITOR + case IW_MODE_MONITOR: +#endif + case IW_MODE_ADHOC: + case IW_MODE_INFRA: + break; + case IW_MODE_AUTO: + wrqu->mode = IW_MODE_INFRA; + break; + default: + return -EINVAL; + } + if (wrqu->mode == priv->ieee->iw_mode) + return 0; + + down(&priv->sem); + + ipw_sw_reset(priv, 0); + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) + priv->net_dev->type = ARPHRD_ETHER; + + if (wrqu->mode == IW_MODE_MONITOR) + priv->net_dev->type = ARPHRD_IEEE80211; +#endif /* CONFIG_IPW2200_MONITOR */ + + /* Free the existing firmware and reset the fw_loaded + * flag so ipw_load() will bring in the new firmawre */ + free_firmware(); + + priv->ieee->iw_mode = wrqu->mode; + + queue_work(priv->workqueue, &priv->adapter_restart); + up(&priv->sem); + return err; +} + +static int ipw_wx_get_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + wrqu->mode = priv->ieee->iw_mode; + IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode); + up(&priv->sem); + return 0; +} + + +/* Values are in microsecond */ +static const s32 timeout_duration[] = { + 350000, + 250000, + 75000, + 37000, + 25000, +}; + +static const s32 period_duration[] = { + 400000, + 700000, + 1000000, + 1000000, + 1000000 +}; + +static int ipw_wx_get_range(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct iw_range *range = (struct iw_range *)extra; + const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee); + int i = 0, j; + + wrqu->data.length = sizeof(*range); + memset(range, 0, sizeof(*range)); + + /* 54Mbs == ~27 Mb/s real (802.11g) */ + range->throughput = 27 * 1000 * 1000; + + range->max_qual.qual = 100; + /* TODO: Find real max RSSI and stick here */ + range->max_qual.level = 0; + range->max_qual.noise = priv->ieee->worst_rssi + 0x100; + range->max_qual.updated = 7; /* Updated all three */ + + range->avg_qual.qual = 70; + /* TODO: Find real 'good' to 'bad' threshol value for RSSI */ + range->avg_qual.level = 0; /* FIXME to real average level */ + range->avg_qual.noise = 0; + range->avg_qual.updated = 7; /* Updated all three */ + down(&priv->sem); + range->num_bitrates = min(priv->rates.num_rates, (u8)IW_MAX_BITRATES); + + for (i = 0; i < range->num_bitrates; i++) + range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) * + 500000; + + range->max_rts = DEFAULT_RTS_THRESHOLD; + range->min_frag = MIN_FRAG_THRESHOLD; + range->max_frag = MAX_FRAG_THRESHOLD; + + range->encoding_size[0] = 5; + range->encoding_size[1] = 13; + range->num_encoding_sizes = 2; + range->max_encoding_tokens = WEP_KEYS; + + /* Set the Wireless Extension versions */ + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 16; + + i = 0; + if (priv->ieee->mode & (IEEE_B | IEEE_G)) { + for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; + i++, j++) { + range->freq[i].i = geo->bg[j].channel; + range->freq[i].m = geo->bg[j].freq * 100000; + range->freq[i].e = 1; + } + } + + if (priv->ieee->mode & IEEE_A) { + for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; + i++, j++) { + range->freq[i].i = geo->a[j].channel; + range->freq[i].m = geo->a[j].freq * 100000; + range->freq[i].e = 1; + } + } + + range->num_channels = i; + range->num_frequency = i; + + up(&priv->sem); + IPW_DEBUG_WX("GET Range\n"); + return 0; +} + +static int ipw_wx_set_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + static const unsigned char any[] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff + }; + static const unsigned char off[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + + if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) + return -EINVAL; + down(&priv->sem); + if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) || + !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) { + /* we disable mandatory BSSID association */ + IPW_DEBUG_WX("Setting AP BSSID to ANY\n"); + priv->config &= ~CFG_STATIC_BSSID; + IPW_DEBUG_ASSOC("Attempting to associate with new " + "parameters.\n"); + ipw_associate(priv); + up(&priv->sem); + return 0; + } + + priv->config |= CFG_STATIC_BSSID; + if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) { + IPW_DEBUG_WX("BSSID set to current BSSID.\n"); + up(&priv->sem); + return 0; + } + + IPW_DEBUG_WX("Setting mandatory BSSID to " MAC_FMT "\n", + MAC_ARG(wrqu->ap_addr.sa_data)); + + memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + up(&priv->sem); + return 0; +} + +static int ipw_wx_get_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + /* If we are associated, trying to associate, or have a statically + * configured BSSID then return that; otherwise return ANY */ + down(&priv->sem); + if (priv->config & CFG_STATIC_BSSID || + priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { + wrqu->ap_addr.sa_family = ARPHRD_ETHER; + memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN); + } else + memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN); + + IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n", + MAC_ARG(wrqu->ap_addr.sa_data)); + up(&priv->sem); + return 0; +} + +static int ipw_wx_set_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + char *essid = ""; /* ANY */ + int length = 0; + down(&priv->sem); + if (wrqu->essid.flags && wrqu->essid.length) { + length = wrqu->essid.length - 1; + essid = extra; + } + if (length == 0) { + IPW_DEBUG_WX("Setting ESSID to ANY\n"); + if ((priv->config & CFG_STATIC_ESSID) && + !(priv->status & (STATUS_ASSOCIATED | + STATUS_ASSOCIATING))) { + IPW_DEBUG_ASSOC("Attempting to associate with new " + "parameters.\n"); + priv->config &= ~CFG_STATIC_ESSID; + ipw_associate(priv); + } + up(&priv->sem); + return 0; + } + + length = min(length, IW_ESSID_MAX_SIZE); + + priv->config |= CFG_STATIC_ESSID; + + if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) { + IPW_DEBUG_WX("ESSID set to current ESSID.\n"); + up(&priv->sem); + return 0; + } + + IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length), + length); + + priv->essid_len = length; + memcpy(priv->essid, essid, priv->essid_len); + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + up(&priv->sem); + return 0; +} + +static int ipw_wx_get_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + /* If we are associated, trying to associate, or have a statically + * configured ESSID then return that; otherwise return ANY */ + down(&priv->sem); + if (priv->config & CFG_STATIC_ESSID || + priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { + IPW_DEBUG_WX("Getting essid: '%s'\n", + escape_essid(priv->essid, priv->essid_len)); + memcpy(extra, priv->essid, priv->essid_len); + wrqu->essid.length = priv->essid_len; + wrqu->essid.flags = 1; /* active */ + } else { + IPW_DEBUG_WX("Getting essid: ANY\n"); + wrqu->essid.length = 0; + wrqu->essid.flags = 0; /* active */ + } + up(&priv->sem); + return 0; +} + +static int ipw_wx_set_nick(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + IPW_DEBUG_WX("Setting nick to '%s'\n", extra); + if (wrqu->data.length > IW_ESSID_MAX_SIZE) + return -E2BIG; + down(&priv->sem); + wrqu->data.length = min((size_t)wrqu->data.length, sizeof(priv->nick)); + memset(priv->nick, 0, sizeof(priv->nick)); + memcpy(priv->nick, extra, wrqu->data.length); + IPW_DEBUG_TRACE("<<\n"); + up(&priv->sem); + return 0; + +} + + +static int ipw_wx_get_nick(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + IPW_DEBUG_WX("Getting nick\n"); + down(&priv->sem); + wrqu->data.length = strlen(priv->nick) + 1; + memcpy(extra, priv->nick, wrqu->data.length); + wrqu->data.flags = 1; /* active */ + up(&priv->sem); + return 0; +} + +static int ipw_wx_set_rate(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* TODO: We should use semaphores or locks for access to priv */ + struct ipw_priv *priv = ieee80211_priv(dev); + u32 target_rate = wrqu->bitrate.value; + u32 fixed, mask; + + /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */ + /* value = X, fixed = 1 means only rate X */ + /* value = X, fixed = 0 means all rates lower equal X */ + + if (target_rate == -1) { + fixed = 0; + mask = IEEE80211_DEFAULT_RATES_MASK; + /* Now we should reassociate */ + goto apply; + } + + mask = 0; + fixed = wrqu->bitrate.fixed; + + if (target_rate == 1000000 || !fixed) + mask |= IEEE80211_CCK_RATE_1MB_MASK; + if (target_rate == 1000000) + goto apply; + + if (target_rate == 2000000 || !fixed) + mask |= IEEE80211_CCK_RATE_2MB_MASK; + if (target_rate == 2000000) + goto apply; + + if (target_rate == 5500000 || !fixed) + mask |= IEEE80211_CCK_RATE_5MB_MASK; + if (target_rate == 5500000) + goto apply; + + if (target_rate == 6000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_6MB_MASK; + if (target_rate == 6000000) + goto apply; + + if (target_rate == 9000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_9MB_MASK; + if (target_rate == 9000000) + goto apply; + + if (target_rate == 11000000 || !fixed) + mask |= IEEE80211_CCK_RATE_11MB_MASK; + if (target_rate == 11000000) + goto apply; + + if (target_rate == 12000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_12MB_MASK; + if (target_rate == 12000000) + goto apply; + + if (target_rate == 18000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_18MB_MASK; + if (target_rate == 18000000) + goto apply; + + if (target_rate == 24000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_24MB_MASK; + if (target_rate == 24000000) + goto apply; + + if (target_rate == 36000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_36MB_MASK; + if (target_rate == 36000000) + goto apply; + + if (target_rate == 48000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_48MB_MASK; + if (target_rate == 48000000) + goto apply; + + if (target_rate == 54000000 || !fixed) + mask |= IEEE80211_OFDM_RATE_54MB_MASK; + if (target_rate == 54000000) + goto apply; + + IPW_DEBUG_WX("invalid rate specified, returning error\n"); + return -EINVAL; + + apply: + IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n", + mask, fixed ? "fixed" : "sub-rates"); + down(&priv->sem); + if (mask == IEEE80211_DEFAULT_RATES_MASK) { + priv->config &= ~CFG_FIXED_RATE; + ipw_set_fixed_rate(priv, priv->ieee->mode); + } else + priv->config |= CFG_FIXED_RATE; + + + if (priv->rates_mask == mask) { + IPW_DEBUG_WX("Mask set to current mask.\n"); + up(&priv->sem); + return 0; + } + + priv->rates_mask = mask; + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + up(&priv->sem); + return 0; +} + +static int ipw_wx_get_rate(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv * priv = ieee80211_priv(dev); + down(&priv->sem); + wrqu->bitrate.value = priv->last_rate; + up(&priv->sem); + IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value); + return 0; +} + + +static int ipw_wx_set_rts(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + if (wrqu->rts.disabled) + priv->rts_threshold = DEFAULT_RTS_THRESHOLD; + else { + if (wrqu->rts.value < MIN_RTS_THRESHOLD || + wrqu->rts.value > MAX_RTS_THRESHOLD) { + up(&priv->sem); + return -EINVAL; + } + priv->rts_threshold = wrqu->rts.value; + } + + ipw_send_rts_threshold(priv, priv->rts_threshold); + up(&priv->sem); + IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold); + return 0; +} + +static int ipw_wx_get_rts(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + wrqu->rts.value = priv->rts_threshold; + wrqu->rts.fixed = 0; /* no auto select */ + wrqu->rts.disabled = + (wrqu->rts.value == DEFAULT_RTS_THRESHOLD); + up(&priv->sem); + IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value); + return 0; +} + + +static int ipw_wx_set_txpow(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee); + struct ipw_tx_power tx_power; + int i; + + down(&priv->sem); + if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) { + up(&priv->sem); + return -EINPROGRESS; + } + + if (!wrqu->power.fixed) + wrqu->power.value = IPW_TX_POWER_DEFAULT; + + if (wrqu->power.flags != IW_TXPOW_DBM) { + up(&priv->sem); + return -EINVAL; + } + + if ((wrqu->power.value > IPW_TX_POWER_MAX) || + (wrqu->power.value < IPW_TX_POWER_MIN)) { + up(&priv->sem); + return -EINVAL; + } + + priv->tx_power = wrqu->power.value; + + memset(&tx_power, 0, sizeof(tx_power)); + + /* configure device for 'G' band */ + tx_power.ieee_mode = IPW_G_MODE; + tx_power.num_channels = geo->bg_channels; + for (i = 0; i < geo->bg_channels; i++) { + int max_power = geo->bg[i].max_power; + + tx_power.channels_tx_power[i].channel_number = i + 1; + if (max_power != 0 && priv->tx_power > max_power) + tx_power.channels_tx_power[i].tx_power = max_power; + else + tx_power.channels_tx_power[i].tx_power = priv->tx_power; + } + if (ipw_send_tx_power(priv, &tx_power)) + goto error; + + /* configure device to also handle 'B' band */ + tx_power.ieee_mode = IPW_B_MODE; + if (ipw_send_tx_power(priv, &tx_power)) + goto error; + + /* configure device to also handle 'A' band */ + if (priv->ieee->abg_true) { + tx_power.ieee_mode = IPW_A_MODE; + tx_power.num_channels = geo->a_channels; + for (i = 0; i < geo->a_channels; i++) { + int max_power = geo->a[i].max_power; + + tx_power.channels_tx_power[i].channel_number = i + 1; + if (max_power != 0 && priv->tx_power > max_power) + tx_power.channels_tx_power[i].tx_power = max_power; + else + tx_power.channels_tx_power[i].tx_power = priv->tx_power; + } + if (ipw_send_tx_power(priv, &tx_power)) + goto error; + } + + up(&priv->sem); + return 0; + + error: + up(&priv->sem); + return -EIO; +} + + +static int ipw_wx_get_txpow(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + wrqu->power.value = priv->tx_power; + wrqu->power.fixed = 1; + wrqu->power.flags = IW_TXPOW_DBM; + wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0; + up(&priv->sem); + + IPW_DEBUG_WX("GET TX Power -> %s %d \n", + wrqu->power.disabled ? "ON" : "OFF", + wrqu->power.value); + + return 0; +} + +static int ipw_wx_set_frag(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + if (wrqu->frag.disabled) + priv->ieee->fts = DEFAULT_FTS; + else { + if (wrqu->frag.value < MIN_FRAG_THRESHOLD || + wrqu->frag.value > MAX_FRAG_THRESHOLD) { + up(&priv->sem); + return -EINVAL; + } + + priv->ieee->fts = wrqu->frag.value & ~0x1; + } + + ipw_send_frag_threshold(priv, wrqu->frag.value); + up(&priv->sem); + IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value); + return 0; +} + +static int ipw_wx_get_frag(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + wrqu->frag.value = priv->ieee->fts; + wrqu->frag.fixed = 0; /* no auto select */ + wrqu->frag.disabled = + (wrqu->frag.value == DEFAULT_FTS); + up(&priv->sem); + IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value); + + return 0; +} + +static int ipw_wx_set_retry(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + if (wrqu->retry.flags & IW_RETRY_LIFETIME || + wrqu->retry.disabled) + return -EINVAL; + + if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) + return 0; + + if (wrqu->retry.value < 0 || wrqu->retry.value > 255) + return -EINVAL; + + down(&priv->sem); + if (wrqu->retry.flags & IW_RETRY_MIN) + priv->short_retry_limit = (u8)wrqu->retry.value; + else if (wrqu->retry.flags & IW_RETRY_MAX) + priv->long_retry_limit = (u8)wrqu->retry.value; + else { + priv->short_retry_limit = (u8)wrqu->retry.value; + priv->long_retry_limit = (u8)wrqu->retry.value; + } + + ipw_send_retry_limit(priv, priv->short_retry_limit, + priv->long_retry_limit); + up(&priv->sem); + IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n", + priv->short_retry_limit, + priv->long_retry_limit); + return 0; +} + + +static int ipw_wx_get_retry(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + down(&priv->sem); + wrqu->retry.disabled = 0; + + if ((wrqu->retry.flags & IW_RETRY_TYPE) == + IW_RETRY_LIFETIME) { + up(&priv->sem); + return -EINVAL; + } + + if (wrqu->retry.flags & IW_RETRY_MAX) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + wrqu->retry.value = priv->long_retry_limit; + } else if (wrqu->retry.flags & IW_RETRY_MIN) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN; + wrqu->retry.value = priv->short_retry_limit; + } else { + wrqu->retry.flags = IW_RETRY_LIMIT; + wrqu->retry.value = priv->short_retry_limit; + } + up(&priv->sem); + + IPW_DEBUG_WX("GET retry -> %d \n", wrqu->retry.value); + + return 0; +} + +#if WIRELESS_EXT > 17 +static int ipw_request_direct_scan(struct ipw_priv *priv, char *essid, + int essid_len) +{ + struct ipw_scan_request_ext scan; + int err = 0, scan_type; + + down(&priv->sem); + + if (priv->status & STATUS_RF_KILL_MASK) { + IPW_DEBUG_HC("Aborting scan due to RF kill activation\n"); + priv->status |= STATUS_SCAN_PENDING; + goto done; + } + + IPW_DEBUG_HC("starting request direct scan!\n"); + + if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) { + err = wait_event_interruptible(priv->wait_state, + !(priv->status & (STATUS_SCANNING | + STATUS_SCAN_ABORTING))); + if (err) { + IPW_DEBUG_HC("aborting direct scan"); + goto done; + } + } + memset(&scan, 0, sizeof(scan)); + + if (priv->config & CFG_SPEED_SCAN) + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = + cpu_to_le16(30); + else + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = + cpu_to_le16(20); + + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = + cpu_to_le16(20); + scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(20); + scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20); + + scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee)); + + err = ipw_send_ssid(priv, essid, essid_len); + if (err) { + IPW_DEBUG_HC("Attempt to send SSID command failed\n"); + goto done; + } + scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; + + ipw_add_scan_channels(priv, &scan, scan_type); + + err = ipw_send_scan_request_ext(priv, &scan); + if (err) { + IPW_DEBUG_HC("Sending scan command failed: %08X\n", + err); + goto done; + } + + priv->status |= STATUS_SCANNING; + + done: + up(&priv->sem); + return err; +} +#endif /* WIRELESS_EXT > 17 */ + +static int ipw_wx_set_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); +#if WIRELESS_EXT > 17 + struct iw_scan_req *req = NULL; + if (wrqu->data.length && wrqu->data.length == sizeof(struct iw_scan_req)) { + req = (struct iw_scan_req *)extra; + if (wrqu->data.flags & IW_SCAN_THIS_ESSID) { + ipw_request_direct_scan(priv, req->essid, req->essid_len); + return 0; + } + } +#endif + IPW_DEBUG_WX("Start scan\n"); + + queue_work(priv->workqueue, &priv->request_scan); + + return 0; +} + +static int ipw_wx_get_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra); +} + +static int ipw_wx_set_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int ret; + + down(&priv->sem); + ret = ieee80211_wx_set_encode(priv->ieee, info, wrqu, key); + up(&priv->sem); + + return ret; +} + +static int ipw_wx_get_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key); +} + +static int ipw_wx_set_power(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int err; + down(&priv->sem); + if (wrqu->power.disabled) { + priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); + err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM); + if (err) { + IPW_DEBUG_WX("failed setting power mode.\n"); + up(&priv->sem); + return err; + } + IPW_DEBUG_WX("SET Power Management Mode -> off\n"); + up(&priv->sem); + return 0; + } + + switch (wrqu->power.flags & IW_POWER_MODE) { + case IW_POWER_ON: /* If not specified */ + case IW_POWER_MODE: /* If set all mask */ + case IW_POWER_ALL_R: /* If explicitely state all */ + break; + default: /* Otherwise we don't support it */ + IPW_DEBUG_WX("SET PM Mode: %X not supported.\n", + wrqu->power.flags); + up(&priv->sem); + return -EOPNOTSUPP; + } + + /* If the user hasn't specified a power management mode yet, default + * to BATTERY */ + if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC) + priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY; + else + priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; + err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); + if (err) { + IPW_DEBUG_WX("failed setting power mode.\n"); + up(&priv->sem); + return err; + } + + IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", + priv->power_mode); + up(&priv->sem); + return 0; +} + +static int ipw_wx_get_power(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + if (!(priv->power_mode & IPW_POWER_ENABLED)) + wrqu->power.disabled = 1; + else + wrqu->power.disabled = 0; + + up(&priv->sem); + IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode); + + return 0; +} + +static int ipw_wx_set_powermode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int mode = *(int *)extra; + int err; + down(&priv->sem); + if ((mode < 1) || (mode > IPW_POWER_LIMIT)) { + mode = IPW_POWER_AC; + priv->power_mode = mode; + } else { + priv->power_mode = IPW_POWER_ENABLED | mode; + } + + if (priv->power_mode != mode) { + err = ipw_send_power_mode(priv, mode); + + if (err) { + IPW_DEBUG_WX("failed setting power mode.\n"); + up(&priv->sem); + return err; + } + } + up(&priv->sem); + return 0; +} + +#define MAX_WX_STRING 80 +static int ipw_wx_get_powermode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int level = IPW_POWER_LEVEL(priv->power_mode); + char *p = extra; + + p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level); + + switch (level) { + case IPW_POWER_AC: + p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)"); + break; + case IPW_POWER_BATTERY: + p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)"); + break; + default: + p += snprintf(p, MAX_WX_STRING - (p - extra), + "(Timeout %dms, Period %dms)", + timeout_duration[level - 1] / 1000, + period_duration[level - 1] / 1000); + } + + if (!(priv->power_mode & IPW_POWER_ENABLED)) + p += snprintf(p, MAX_WX_STRING - (p - extra)," OFF"); + + wrqu->data.length = p - extra + 1; + + return 0; +} + +static int ipw_wx_set_wireless_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int mode = *(int *)extra; + u8 band = 0, modulation = 0; + + if (mode == 0 || mode & ~IEEE_MODE_MASK) { + IPW_WARNING("Attempt to set invalid wireless mode: %d\n", + mode); + return -EINVAL; + } + down(&priv->sem); + if (priv->adapter == IPW_2915ABG) { + priv->ieee->abg_true = 1; + if (mode & IEEE_A) { + band |= IEEE80211_52GHZ_BAND; + modulation |= IEEE80211_OFDM_MODULATION; + } else + priv->ieee->abg_true = 0; + } else { + if (mode & IEEE_A) { + IPW_WARNING("Attempt to set 2200BG into " + "802.11a mode\n"); + up(&priv->sem); + return -EINVAL; + } + + priv->ieee->abg_true = 0; + } + + if (mode & IEEE_B) { + band |= IEEE80211_24GHZ_BAND; + modulation |= IEEE80211_CCK_MODULATION; + } else + priv->ieee->abg_true = 0; + + if (mode & IEEE_G) { + band |= IEEE80211_24GHZ_BAND; + modulation |= IEEE80211_OFDM_MODULATION; + } else + priv->ieee->abg_true = 0; + + priv->ieee->mode = mode; + priv->ieee->freq_band = band; + priv->ieee->modulation = modulation; + init_supported_rates(priv, &priv->rates); + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n"); + if (!ipw_disassociate(priv)) { + ipw_send_supported_rates(priv, &priv->rates); + ipw_associate(priv); + } + + /* Update the band LEDs */ + ipw_led_band_on(priv); + + IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n", + mode & IEEE_A ? 'a' : '.', + mode & IEEE_B ? 'b' : '.', + mode & IEEE_G ? 'g' : '.'); + up(&priv->sem); + return 0; +} + +static int ipw_wx_get_wireless_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + switch (priv->ieee->mode) { + case IEEE_A: + strncpy(extra, "802.11a (1)", MAX_WX_STRING); + break; + case IEEE_B: + strncpy(extra, "802.11b (2)", MAX_WX_STRING); + break; + case IEEE_A|IEEE_B: + strncpy(extra, "802.11ab (3)", MAX_WX_STRING); + break; + case IEEE_G: + strncpy(extra, "802.11g (4)", MAX_WX_STRING); + break; + case IEEE_A|IEEE_G: + strncpy(extra, "802.11ag (5)", MAX_WX_STRING); + break; + case IEEE_B|IEEE_G: + strncpy(extra, "802.11bg (6)", MAX_WX_STRING); + break; + case IEEE_A|IEEE_B|IEEE_G: + strncpy(extra, "802.11abg (7)", MAX_WX_STRING); + break; + default: + strncpy(extra, "unknown", MAX_WX_STRING); + break; + } + + IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra); + + wrqu->data.length = strlen(extra) + 1; + up(&priv->sem); + + return 0; +} + + + +static int ipw_wx_set_preamble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int mode = *(int *)extra; + down(&priv->sem); + /* Switching from SHORT -> LONG requires a disassociation */ + if (mode == 1) { + if (!(priv->config & CFG_PREAMBLE_LONG)) { + priv->config |= CFG_PREAMBLE_LONG; + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to preamble change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + } + goto done; + } + + if (mode == 0) { + priv->config &= ~CFG_PREAMBLE_LONG; + goto done; + } + up(&priv->sem); + return -EINVAL; + + done: + up(&priv->sem); + return 0; +} + +static int ipw_wx_get_preamble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + if (priv->config & CFG_PREAMBLE_LONG) + snprintf(wrqu->name, IFNAMSIZ, "long (1)"); + else + snprintf(wrqu->name, IFNAMSIZ, "auto (0)"); + up(&priv->sem); + return 0; +} + + + +#ifdef CONFIG_IPW2200_MONITOR +static int ipw_wx_set_monitor(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int *parms = (int *)extra; + int enable = (parms[0] > 0); + down(&priv->sem); + IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]); + if (enable) { + if (priv->ieee->iw_mode != IW_MODE_MONITOR) { + priv->net_dev->type = ARPHRD_IEEE80211; + queue_work(priv->workqueue, &priv->adapter_restart); + } + + ipw_set_channel(priv, parms[1]); + } else { + if (priv->ieee->iw_mode != IW_MODE_MONITOR) { + up(&priv->sem); + return 0; + } + priv->net_dev->type = ARPHRD_ETHER; + queue_work(priv->workqueue, &priv->adapter_restart); + } + up(&priv->sem); + return 0; +} + +#endif /* CONFIG_IPW2200_MONITOR */ + +static int ipw_wx_reset(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + IPW_DEBUG_WX("RESET\n"); + queue_work(priv->workqueue, &priv->adapter_restart); + return 0; +} + + +static int ipw_wx_sw_reset(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + union iwreq_data wrqu_sec = { + .encoding = { + .flags = IW_ENCODE_DISABLED, + }, + }; + int ret; + + IPW_DEBUG_WX("SW_RESET\n"); + + down(&priv->sem); + + ret = ipw_sw_reset(priv, 0); + if (!ret) { + free_firmware(); + ipw_adapter_restart(priv); + } + + /* The SW reset bit might have been toggled on by the 'disable' + * module parameter, so take appropriate action */ + ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW); + + up(&priv->sem); + ieee80211_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL); + down(&priv->sem); + + if (!(priv->status & STATUS_RF_KILL_MASK)) { + /* Configuration likely changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to sw " + "reset.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + } + + up(&priv->sem); + + return 0; +} + +/* Rebase the WE IOCTLs to zero for the handler array */ +#define IW_IOCTL(x) [(x)-SIOCSIWCOMMIT] +static iw_handler ipw_wx_handlers[] = +{ + IW_IOCTL(SIOCGIWNAME) = ipw_wx_get_name, + IW_IOCTL(SIOCSIWFREQ) = ipw_wx_set_freq, + IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq, + IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode, + IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode, + IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range, + IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap, + IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap, + IW_IOCTL(SIOCSIWSCAN) = ipw_wx_set_scan, + IW_IOCTL(SIOCGIWSCAN) = ipw_wx_get_scan, + IW_IOCTL(SIOCSIWESSID) = ipw_wx_set_essid, + IW_IOCTL(SIOCGIWESSID) = ipw_wx_get_essid, + IW_IOCTL(SIOCSIWNICKN) = ipw_wx_set_nick, + IW_IOCTL(SIOCGIWNICKN) = ipw_wx_get_nick, + IW_IOCTL(SIOCSIWRATE) = ipw_wx_set_rate, + IW_IOCTL(SIOCGIWRATE) = ipw_wx_get_rate, + IW_IOCTL(SIOCSIWRTS) = ipw_wx_set_rts, + IW_IOCTL(SIOCGIWRTS) = ipw_wx_get_rts, + IW_IOCTL(SIOCSIWFRAG) = ipw_wx_set_frag, + IW_IOCTL(SIOCGIWFRAG) = ipw_wx_get_frag, + IW_IOCTL(SIOCSIWTXPOW) = ipw_wx_set_txpow, + IW_IOCTL(SIOCGIWTXPOW) = ipw_wx_get_txpow, + IW_IOCTL(SIOCSIWRETRY) = ipw_wx_set_retry, + IW_IOCTL(SIOCGIWRETRY) = ipw_wx_get_retry, + IW_IOCTL(SIOCSIWENCODE) = ipw_wx_set_encode, + IW_IOCTL(SIOCGIWENCODE) = ipw_wx_get_encode, + IW_IOCTL(SIOCSIWPOWER) = ipw_wx_set_power, + IW_IOCTL(SIOCGIWPOWER) = ipw_wx_get_power, + IW_IOCTL(SIOCSIWSPY) = iw_handler_set_spy, + IW_IOCTL(SIOCGIWSPY) = iw_handler_get_spy, + IW_IOCTL(SIOCSIWTHRSPY) = iw_handler_set_thrspy, + IW_IOCTL(SIOCGIWTHRSPY) = iw_handler_get_thrspy, +#if WIRELESS_EXT > 17 + IW_IOCTL(SIOCSIWGENIE) = ipw_wx_set_genie, + IW_IOCTL(SIOCGIWGENIE) = ipw_wx_get_genie, + IW_IOCTL(SIOCSIWMLME) = ipw_wx_set_mlme, + IW_IOCTL(SIOCSIWAUTH) = ipw_wx_set_auth, + IW_IOCTL(SIOCGIWAUTH) = ipw_wx_get_auth, + IW_IOCTL(SIOCSIWENCODEEXT) = ipw_wx_set_encodeext, + IW_IOCTL(SIOCGIWENCODEEXT) = ipw_wx_get_encodeext, +#endif +}; + +enum { + IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV, + IPW_PRIV_GET_POWER, + IPW_PRIV_SET_MODE, + IPW_PRIV_GET_MODE, + IPW_PRIV_SET_PREAMBLE, + IPW_PRIV_GET_PREAMBLE, + IPW_PRIV_RESET, + IPW_PRIV_SW_RESET, +#ifdef CONFIG_IPW2200_MONITOR + IPW_PRIV_SET_MONITOR, +#endif +}; + +static struct iw_priv_args ipw_priv_args[] = { + { + .cmd = IPW_PRIV_SET_POWER, + .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + .name = "set_power" + }, + { + .cmd = IPW_PRIV_GET_POWER, + .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, + .name = "get_power" + }, + { + .cmd = IPW_PRIV_SET_MODE, + .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + .name = "set_mode" + }, + { + .cmd = IPW_PRIV_GET_MODE, + .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, + .name = "get_mode" + }, + { + .cmd = IPW_PRIV_SET_PREAMBLE, + .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + .name = "set_preamble" + }, + { + .cmd = IPW_PRIV_GET_PREAMBLE, + .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, + .name = "get_preamble" + }, + { + IPW_PRIV_RESET, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset" + }, + { + IPW_PRIV_SW_RESET, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset" + }, +#ifdef CONFIG_IPW2200_MONITOR + { + IPW_PRIV_SET_MONITOR, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor" + }, +#endif /* CONFIG_IPW2200_MONITOR */ +}; + +static iw_handler ipw_priv_handler[] = { + ipw_wx_set_powermode, + ipw_wx_get_powermode, + ipw_wx_set_wireless_mode, + ipw_wx_get_wireless_mode, + ipw_wx_set_preamble, + ipw_wx_get_preamble, + ipw_wx_reset, + ipw_wx_sw_reset, +#ifdef CONFIG_IPW2200_MONITOR + ipw_wx_set_monitor, +#endif +}; + +static struct iw_handler_def ipw_wx_handler_def = +{ + .standard = ipw_wx_handlers, + .num_standard = ARRAY_SIZE(ipw_wx_handlers), + .num_private = ARRAY_SIZE(ipw_priv_handler), + .num_private_args = ARRAY_SIZE(ipw_priv_args), + .private = ipw_priv_handler, + .private_args = ipw_priv_args, +}; + + +/* + * Get wireless statistics. + * Called by /proc/net/wireless + * Also called by SIOCGIWSTATS + */ +static struct iw_statistics *ipw_get_wireless_stats(struct net_device * dev) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct iw_statistics *wstats; + + wstats = &priv->wstats; + + /* if hw is disabled, then ipw_get_ordinal() can't be called. + * netdev->get_wireless_stats seems to be called before fw is + * initialized. STATUS_ASSOCIATED will only be set if the hw is up + * and associated; if not associcated, the values are all meaningless + * anyway, so set them all to NULL and INVALID */ + if (!(priv->status & STATUS_ASSOCIATED)) { + wstats->miss.beacon = 0; + wstats->discard.retries = 0; + wstats->qual.qual = 0; + wstats->qual.level = 0; + wstats->qual.noise = 0; + wstats->qual.updated = 7; + wstats->qual.updated |= IW_QUAL_NOISE_INVALID | + IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; + return wstats; + } + + wstats->qual.qual = priv->quality; + wstats->qual.level = average_value(&priv->average_rssi); + wstats->qual.noise = average_value(&priv->average_noise); + wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | + IW_QUAL_NOISE_UPDATED; + + wstats->miss.beacon = average_value(&priv->average_missed_beacons); + wstats->discard.retries = priv->last_tx_failures; + wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable; + +/* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len)) + goto fail_get_ordinal; + wstats->discard.retries += tx_retry; */ + + return wstats; +} + + +/* net device stuff */ + +static inline void init_sys_config(struct ipw_sys_config *sys_config) +{ + memset(sys_config, 0, sizeof(struct ipw_sys_config)); + sys_config->bt_coexistence = 1; /* We may need to look into prvStaBtConfig */ + sys_config->answer_broadcast_ssid_probe = 0; + sys_config->accept_all_data_frames = 0; + sys_config->accept_non_directed_frames = 1; + sys_config->exclude_unicast_unencrypted = 0; + sys_config->disable_unicast_decryption = 1; + sys_config->exclude_multicast_unencrypted = 0; + sys_config->disable_multicast_decryption = 1; + sys_config->antenna_diversity = CFG_SYS_ANTENNA_BOTH; + sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */ + sys_config->dot11g_auto_detection = 0; + sys_config->enable_cts_to_self = 0; + sys_config->bt_coexist_collision_thr = 0; + sys_config->pass_noise_stats_to_host = 1; //1 -- fix for 256 +} + +static int ipw_net_open(struct net_device *dev) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + IPW_DEBUG_INFO("dev->open\n"); + /* we should be verifying the device is ready to be opened */ + down(&priv->sem); + if (!(priv->status & STATUS_RF_KILL_MASK) && + (priv->status & STATUS_ASSOCIATED)) + netif_start_queue(dev); + up(&priv->sem); + return 0; +} + +static int ipw_net_stop(struct net_device *dev) +{ + IPW_DEBUG_INFO("dev->close\n"); + netif_stop_queue(dev); + return 0; +} + +/* +todo: + +modify to send one tfd per fragment instead of using chunking. otherwise +we need to heavily modify the ieee80211_skb_to_txb. +*/ + +static inline void ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb, int pri) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) + txb->fragments[0]->data; + int i = 0; + struct tfd_frame *tfd; +#ifdef CONFIG_IPW_QOS + int tx_id = ipw_get_tx_queue_number(priv, pri); + struct clx2_tx_queue *txq = &priv->txq[tx_id]; +#else + struct clx2_tx_queue *txq = &priv->txq[0]; +#endif /* CONFIG_IPW_QOS */ + struct clx2_queue *q = &txq->q; + u8 id, hdr_len, unicast; + u16 remaining_bytes; + int fc; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + hdr_len = IEEE80211_3ADDR_LEN; + unicast = !is_multicast_ether_addr(hdr->addr1); + id = ipw_find_station(priv, hdr->addr1); + if (id == IPW_INVALID_STATION) { + id = ipw_add_station(priv, hdr->addr1); + if (id == IPW_INVALID_STATION) { + IPW_WARNING("Attempt to send data to " + "invalid cell: " MAC_FMT "\n", + MAC_ARG(hdr->addr1)); + goto drop; + } + } + break; + + case IW_MODE_INFRA: + default: + unicast = !is_multicast_ether_addr(hdr->addr3); + hdr_len = IEEE80211_3ADDR_LEN; + id = 0; + break; + } + + tfd = &txq->bd[q->first_empty]; + txq->txb[q->first_empty] = txb; + memset(tfd, 0, sizeof(*tfd)); + tfd->u.data.station_number = id; + + tfd->control_flags.message_type = TX_FRAME_TYPE; + tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; + + tfd->u.data.cmd_id = DINO_CMD_TX; + tfd->u.data.len = cpu_to_le16(txb->payload_size); + remaining_bytes = txb->payload_size; + + if (priv->assoc_request.ieee_mode == IPW_B_MODE) + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK; + else + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM; + + if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE) + tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE; + + fc = le16_to_cpu(hdr->frame_ctl); + hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS); + + memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len); + + if (likely(unicast)) + tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; + + if (txb->encrypted && !priv->ieee->host_encrypt) { + switch (priv->ieee->sec.level) { + case SEC_LEVEL_3: + tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= + IEEE80211_FCTL_WEP; + /* XXX: ACK flag must be set for CCMP even if it + * is a multicast/broadcast packet, because CCMP + * group communication encrypted by GTK is + * actually done by the AP. */ + if (!unicast) + tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; + + tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM; + tfd->u.data.key_index = 0; + tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE; + break; + case SEC_LEVEL_2: + tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= + IEEE80211_FCTL_WEP; + tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP; + tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE; + break; + case SEC_LEVEL_1: + tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= + IEEE80211_FCTL_WEP; + tfd->u.data.key_index = priv->ieee->tx_keyidx; + if (priv->ieee->sec.key_sizes[priv->ieee->tx_keyidx] <= + 40) + tfd->u.data.key_index |= DCT_WEP_KEY_64Bit; + else + tfd->u.data.key_index |= DCT_WEP_KEY_128Bit; + break; + case SEC_LEVEL_0: + break; + default: + printk(KERN_ERR "Unknow security level %d\n", + priv->ieee->sec.level); + break; + } + } else + /* No hardware encryption */ + tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP; + +#ifdef CONFIG_IPW_QOS + ipw_qos_set_tx_queue_command(priv, pri,&(tfd->u.data) , unicast); +#endif /* CONFIG_IPW_QOS */ + + /* payload */ + tfd->u.data.num_chunks = cpu_to_le32(min((u8)(NUM_TFD_CHUNKS - 2), + txb->nr_frags)); + IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n", + txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks)); + for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) { + IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n", + i, le32_to_cpu(tfd->u.data.num_chunks), + txb->fragments[i]->len - hdr_len); + IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n", + i, tfd->u.data.num_chunks, + txb->fragments[i]->len - hdr_len); + printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len, + txb->fragments[i]->len - hdr_len); + + tfd->u.data.chunk_ptr[i] = cpu_to_le32( + pci_map_single( + priv->pci_dev, + txb->fragments[i]->data + hdr_len, + txb->fragments[i]->len - hdr_len, + PCI_DMA_TODEVICE)); + tfd->u.data.chunk_len[i] = cpu_to_le16( + txb->fragments[i]->len - hdr_len); + } + + if (i != txb->nr_frags) { + struct sk_buff *skb; + u16 remaining_bytes = 0; + int j; + + for (j = i; j < txb->nr_frags; j++) + remaining_bytes += txb->fragments[j]->len - hdr_len; + + printk(KERN_INFO "Trying to reallocate for %d bytes\n", + remaining_bytes); + skb = alloc_skb(remaining_bytes, GFP_ATOMIC); + if (skb != NULL) { + tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes); + for (j = i; j < txb->nr_frags; j++) { + int size = txb->fragments[j]->len - hdr_len; + + printk(KERN_INFO "Adding frag %d %d...\n", + j, size); + memcpy(skb_put(skb, size), + txb->fragments[j]->data + hdr_len, size); + } + dev_kfree_skb_any(txb->fragments[i]); + txb->fragments[i] = skb; + tfd->u.data.chunk_ptr[i] = cpu_to_le32(pci_map_single( + priv->pci_dev, skb->data, + tfd->u.data.chunk_len[i], PCI_DMA_TODEVICE)); + + tfd->u.data.num_chunks = cpu_to_le32( + le32_to_cpu(tfd->u.data.num_chunks) + 1); + } + } + + /* kick DMA */ + q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); + ipw_write32(priv, q->reg_w, q->first_empty); + + if (ipw_queue_space(q) < q->high_mark) + netif_stop_queue(priv->net_dev); + + return; + + drop: + IPW_DEBUG_DROP("Silently dropping Tx packet.\n"); + ieee80211_txb_free(txb); +} + +static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb, + struct net_device *dev, int pri) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + unsigned long flags; + + IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size); + spin_lock_irqsave(&priv->lock, flags); + + if (!(priv->status & STATUS_ASSOCIATED)) { + IPW_DEBUG_INFO("Tx attempt while not associated.\n"); + priv->ieee->stats.tx_carrier_errors++; + netif_stop_queue(dev); + goto fail_unlock; + } + + ipw_tx_skb(priv, txb, pri); + __ipw_led_activity_on(priv); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; + + fail_unlock: + spin_unlock_irqrestore(&priv->lock, flags); + return 1; +} + +static struct net_device_stats *ipw_net_get_stats(struct net_device *dev) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + + priv->ieee->stats.tx_packets = priv->tx_packets; + priv->ieee->stats.rx_packets = priv->rx_packets; + return &priv->ieee->stats; +} + +static void ipw_net_set_multicast_list(struct net_device *dev) +{ + +} + +static int ipw_net_set_mac_address(struct net_device *dev, void *p) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + struct sockaddr *addr = p; + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + down(&priv->sem); + priv->config |= CFG_CUSTOM_MAC; + memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); + printk(KERN_INFO "%s: Setting MAC to " MAC_FMT "\n", + priv->net_dev->name, MAC_ARG(priv->mac_addr)); + queue_work(priv->workqueue, &priv->adapter_restart); + up(&priv->sem); + return 0; +} + +static void ipw_ethtool_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct ipw_priv *p = ieee80211_priv(dev); + char vers[64]; + char date[32]; + u32 len; + + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + + len = sizeof(vers); + ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len); + len = sizeof(date); + ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len); + + snprintf(info->fw_version, sizeof(info->fw_version),"%s (%s)", + vers, date); + strcpy(info->bus_info, pci_name(p->pci_dev)); + info->eedump_len = IPW_EEPROM_IMAGE_SIZE; +} + +static u32 ipw_ethtool_get_link(struct net_device *dev) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + return (priv->status & STATUS_ASSOCIATED) != 0; +} + +static int ipw_ethtool_get_eeprom_len(struct net_device *dev) +{ + return IPW_EEPROM_IMAGE_SIZE; +} + +static int ipw_ethtool_get_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct ipw_priv *p = ieee80211_priv(dev); + + if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) + return -EINVAL; + down(&p->sem); + memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len); + up(&p->sem); + return 0; +} + +static int ipw_ethtool_set_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct ipw_priv *p = ieee80211_priv(dev); + int i; + + if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) + return -EINVAL; + down(&p->sem); + memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len); + for (i = IPW_EEPROM_DATA; + i < IPW_EEPROM_DATA + IPW_EEPROM_IMAGE_SIZE; + i++) + ipw_write8(p, i, p->eeprom[i]); + up(&p->sem); + return 0; +} + +static struct ethtool_ops ipw_ethtool_ops = { + .get_link = ipw_ethtool_get_link, + .get_drvinfo = ipw_ethtool_get_drvinfo, + .get_eeprom_len = ipw_ethtool_get_eeprom_len, + .get_eeprom = ipw_ethtool_get_eeprom, + .set_eeprom = ipw_ethtool_set_eeprom, +}; + +static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs) +{ + struct ipw_priv *priv = data; + u32 inta, inta_mask; + + if (!priv) + return IRQ_NONE; + + spin_lock(&priv->lock); + + if (!(priv->status & STATUS_INT_ENABLED)) { + /* Shared IRQ */ + goto none; + } + + inta = ipw_read32(priv, IPW_INTA_RW); + inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); + + if (inta == 0xFFFFFFFF) { + /* Hardware disappeared */ + IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n"); + goto none; + } + + if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) { + /* Shared interrupt */ + goto none; + } + + /* tell the device to stop sending interrupts */ + ipw_disable_interrupts(priv); + + /* ack current interrupts */ + inta &= (IPW_INTA_MASK_ALL & inta_mask); + ipw_write32(priv, IPW_INTA_RW, inta); + + /* Cache INTA value for our tasklet */ + priv->isr_inta = inta; + + tasklet_schedule(&priv->irq_tasklet); + + spin_unlock(&priv->lock); + + return IRQ_HANDLED; + none: + spin_unlock(&priv->lock); + return IRQ_NONE; +} + +static void ipw_rf_kill(void *adapter) +{ + struct ipw_priv *priv = adapter; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + + if (rf_kill_active(priv)) { + IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n"); + if (priv->workqueue) + queue_delayed_work(priv->workqueue, + &priv->rf_kill, 2 * HZ); + goto exit_unlock; + } + + /* RF Kill is now disabled, so bring the device back up */ + + if (!(priv->status & STATUS_RF_KILL_MASK)) { + IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting " + "device\n"); + + /* we can not do an adapter restart while inside an irq lock */ + queue_work(priv->workqueue, &priv->adapter_restart); + } else + IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still " + "enabled\n"); + + exit_unlock: + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_bg_rf_kill(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_rf_kill(data); + up(&priv->sem); +} + + +void ipw_link_up(struct ipw_priv *priv) +{ + priv->last_seq_num = -1; + priv->last_frag_num = -1; + priv->last_packet_time = 0; + + netif_carrier_on(priv->net_dev); + if (netif_queue_stopped(priv->net_dev)) { + IPW_DEBUG_NOTIF("waking queue\n"); + netif_wake_queue(priv->net_dev); + } else { + IPW_DEBUG_NOTIF("starting queue\n"); + netif_start_queue(priv->net_dev); + } + + cancel_delayed_work(&priv->request_scan); + ipw_reset_stats(priv); + /* Ensure the rate is updated immediately */ + priv->last_rate = ipw_get_current_rate(priv); + ipw_gather_stats(priv); + ipw_led_link_up(priv); + notify_wx_assoc_event(priv); + + if (priv->config & CFG_BACKGROUND_SCAN) + queue_delayed_work(priv->workqueue, &priv->request_scan, HZ); +} + +static void ipw_bg_link_up(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_link_up(data); + up(&priv->sem); +} + + +void ipw_link_down(struct ipw_priv *priv) +{ + ipw_led_link_down(priv); + netif_carrier_off(priv->net_dev); + netif_stop_queue(priv->net_dev); + notify_wx_assoc_event(priv); + + /* Cancel any queued work ... */ + cancel_delayed_work(&priv->request_scan); + cancel_delayed_work(&priv->adhoc_check); + cancel_delayed_work(&priv->gather_stats); + + ipw_reset_stats(priv); + + if (!(priv->status & STATUS_EXIT_PENDING)) { + /* Queue up another scan... */ + queue_work(priv->workqueue, &priv->request_scan); + } +} + + + +static void ipw_bg_link_down(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_link_down(data); + up(&priv->sem); +} + +static int ipw_setup_deferred_work(struct ipw_priv *priv) +{ + int ret = 0; + +#ifdef PF_SYNCTHREAD + priv->workqueue = create_workqueue(DRV_NAME, 0); +#else + priv->workqueue = create_workqueue(DRV_NAME); +#endif + init_waitqueue_head(&priv->wait_command_queue); + init_waitqueue_head(&priv->wait_state); + + INIT_WORK(&priv->adhoc_check, ipw_bg_adhoc_check, priv); + INIT_WORK(&priv->associate, ipw_bg_associate, priv); + INIT_WORK(&priv->disassociate, ipw_bg_disassociate, priv); + INIT_WORK(&priv->system_config, ipw_system_config, priv); + INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish, priv); + INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart, priv); + INIT_WORK(&priv->rf_kill, ipw_bg_rf_kill, priv); + INIT_WORK(&priv->up, (void (*)(void *))ipw_bg_up, priv); + INIT_WORK(&priv->down, (void (*)(void *))ipw_bg_down, priv); + INIT_WORK(&priv->request_scan, + (void (*)(void *))ipw_request_scan, priv); + INIT_WORK(&priv->gather_stats, + (void (*)(void *))ipw_bg_gather_stats, priv); + INIT_WORK(&priv->abort_scan, (void (*)(void *))ipw_bg_abort_scan, priv); + INIT_WORK(&priv->roam, ipw_bg_roam, priv); + INIT_WORK(&priv->scan_check, ipw_bg_scan_check, priv); + INIT_WORK(&priv->link_up, (void (*)(void *))ipw_bg_link_up, priv); + INIT_WORK(&priv->link_down, (void (*)(void *))ipw_bg_link_down, priv); + INIT_WORK(&priv->led_link_on, (void (*)(void *))ipw_bg_led_link_on, priv); + INIT_WORK(&priv->led_link_off, (void (*)(void *))ipw_bg_led_link_off, priv); + INIT_WORK(&priv->led_act_off, (void (*)(void *))ipw_bg_led_activity_off, priv); + INIT_WORK(&priv->merge_networks, (void (*)(void *))ipw_merge_adhoc_network, priv); + +#ifdef CONFIG_IPW_QOS + INIT_WORK(&priv->qos_activate, (void (*)(void *))ipw_bg_qos_activate, priv); +#endif /* CONFIG_IPW_QOS */ + + tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) + ipw_irq_tasklet, (unsigned long)priv); + + return ret; +} + + +static void shim__set_security(struct net_device *dev, + struct ieee80211_security *sec) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + int i; + for (i = 0; i < 4; i++) { + if (sec->flags & (1 << i)) { + priv->ieee->sec.encode_alg[i] = sec->encode_alg[i]; + priv->ieee->sec.key_sizes[i] = sec->key_sizes[i]; + if (sec->key_sizes[i] == 0) + priv->ieee->sec.flags &= ~(1 << i); + else { + memcpy(priv->ieee->sec.keys[i], sec->keys[i], + sec->key_sizes[i]); + priv->ieee->sec.flags |= (1 << i); + } + priv->status |= STATUS_SECURITY_UPDATED; + } else if (sec->level != SEC_LEVEL_1) + priv->ieee->sec.flags &= ~(1 << i); + } + + if (sec->flags & SEC_ACTIVE_KEY) { + if (sec->active_key <= 3) { + priv->ieee->sec.active_key = sec->active_key; + priv->ieee->sec.flags |= SEC_ACTIVE_KEY; + } else + priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; + priv->status |= STATUS_SECURITY_UPDATED; + } else + priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; + + if ((sec->flags & SEC_AUTH_MODE) && + (priv->ieee->sec.auth_mode != sec->auth_mode)) { + priv->ieee->sec.auth_mode = sec->auth_mode; + priv->ieee->sec.flags |= SEC_AUTH_MODE; + if (sec->auth_mode == WLAN_AUTH_SHARED_KEY) + priv->capability |= CAP_SHARED_KEY; + else + priv->capability &= ~CAP_SHARED_KEY; + priv->status |= STATUS_SECURITY_UPDATED; + } + + if (sec->flags & SEC_ENABLED && + priv->ieee->sec.enabled != sec->enabled) { + priv->ieee->sec.flags |= SEC_ENABLED; + priv->ieee->sec.enabled = sec->enabled; + priv->status |= STATUS_SECURITY_UPDATED; + if (sec->enabled) + priv->capability |= CAP_PRIVACY_ON; + else + priv->capability &= ~CAP_PRIVACY_ON; + } + + if (sec->flags & SEC_ENCRYPT) + priv->ieee->sec.encrypt = sec->encrypt; + + if (sec->flags & SEC_LEVEL && + priv->ieee->sec.level != sec->level) { + priv->ieee->sec.level = sec->level; + priv->ieee->sec.flags |= SEC_LEVEL; + priv->status |= STATUS_SECURITY_UPDATED; + + if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT)) + ipw_set_hwcrypto_keys(priv); + } + + /* To match current functionality of ipw2100 (which works well w/ + * various supplicants, we don't force a disassociate if the + * privacy capability changes ... */ +#if 0 + if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) && + (((priv->assoc_request.capability & + WLAN_CAPABILITY_PRIVACY) && !sec->enabled) || + (!(priv->assoc_request.capability & + WLAN_CAPABILITY_PRIVACY) && sec->enabled))) { + IPW_DEBUG_ASSOC("Disassociating due to capability " + "change.\n"); + ipw_disassociate(priv); + } +#endif +} + +static int init_supported_rates(struct ipw_priv *priv, + struct ipw_supported_rates *rates) +{ + /* TODO: Mask out rates based on priv->rates_mask */ + + memset(rates, 0, sizeof(*rates)); + /* configure supported rates */ + switch (priv->ieee->freq_band) { + case IEEE80211_52GHZ_BAND: + rates->ieee_mode = IPW_A_MODE; + rates->purpose = IPW_RATE_CAPABILITIES; + ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION, + IEEE80211_OFDM_DEFAULT_RATES_MASK); + break; + + default: /* Mixed or 2.4Ghz */ + rates->ieee_mode = IPW_G_MODE; + rates->purpose = IPW_RATE_CAPABILITIES; + ipw_add_cck_scan_rates(rates, IEEE80211_CCK_MODULATION, + IEEE80211_CCK_DEFAULT_RATES_MASK); + if (priv->ieee->modulation & IEEE80211_OFDM_MODULATION) { + ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION, + IEEE80211_OFDM_DEFAULT_RATES_MASK); + } + break; + } + + return 0; +} + +static int ipw_config(struct ipw_priv *priv) +{ + int i; + struct ipw_tx_power tx_power; + + memset(&priv->sys_config, 0, sizeof(priv->sys_config)); + memset(&tx_power, 0, sizeof(tx_power)); + + /* This is only called from ipw_up, which resets/reloads the firmware + so, we don't need to first disable the card before we configure + it */ + + /* configure device for 'G' band */ + tx_power.ieee_mode = IPW_G_MODE; + tx_power.num_channels = 11; + for (i = 0; i < 11; i++) { + tx_power.channels_tx_power[i].channel_number = i + 1; + tx_power.channels_tx_power[i].tx_power = priv->tx_power; + } + if (ipw_send_tx_power(priv, &tx_power)) + goto error; + + /* configure device to also handle 'B' band */ + tx_power.ieee_mode = IPW_B_MODE; + if (ipw_send_tx_power(priv, &tx_power)) + goto error; + + /* initialize adapter address */ + if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr)) + goto error; + + /* set basic system config settings */ + init_sys_config(&priv->sys_config); + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + priv->sys_config.answer_broadcast_ssid_probe = 1; + else + priv->sys_config.answer_broadcast_ssid_probe = 0; + + if (ipw_send_system_config(priv, &priv->sys_config)) + goto error; + + init_supported_rates(priv, &priv->rates); + if (ipw_send_supported_rates(priv, &priv->rates)) + goto error; + + /* Set request-to-send threshold */ + if (priv->rts_threshold) { + if (ipw_send_rts_threshold(priv, priv->rts_threshold)) + goto error; + } + +#ifdef CONFIG_IPW_QOS + IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n"); + ipw_qos_activate(priv, NULL); +#endif /* CONFIG_IPW_QOS */ + + if (ipw_set_random_seed(priv)) + goto error; + + /* final state transition to the RUN state */ + if (ipw_send_host_complete(priv)) + goto error; + + /* If configured to try and auto-associate, kick off a scan */ + if (priv->config & CFG_ASSOCIATE) + queue_work(priv->workqueue, &priv->request_scan); + + return 0; + + error: + return -EIO; +} + +#define MAX_HW_RESTARTS 5 +static int ipw_up(struct ipw_priv *priv) +{ + int rc, i; + + if (priv->status & STATUS_EXIT_PENDING) + return -EIO; + + for (i = 0; i < MAX_HW_RESTARTS; i++ ) { + /* Load the microcode, firmware, and eeprom. + * Also start the clocks. */ + rc = ipw_load(priv); + if (rc) { + IPW_ERROR("Unable to load firmware: 0x%08X\n", + rc); + return rc; + } + + ipw_init_ordinals(priv); + if (!(priv->config & CFG_CUSTOM_MAC)) + eeprom_parse_mac(priv, priv->mac_addr); + memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN); + + memcpy(priv->country, &priv->eeprom[EEPROM_COUNTRY_CODE], 3); + priv->country[3] = '\0'; + switch (priv->country[2]) { + case 'A': + priv->ieee->geography = IEEE80211_GEO_001; + break; + case 'E': + priv->ieee->geography = IEEE80211_GEO_002; + break; + case 'H': + case 'J': + default: + priv->ieee->geography = IEEE80211_GEO_000; + break; + } + + IPW_DEBUG_INFO("Geography %03d [%s] detected.\n", + priv->ieee->geography, + priv->country); + + if (priv->status & STATUS_RF_KILL_SW) { + IPW_WARNING("Radio disabled by module parameter.\n"); + return 0; + } else if (rf_kill_active(priv)) { + IPW_WARNING("Radio Frequency Kill Switch is On:\n" + "Kill switch must be turned off for " + "wireless networking to work.\n"); + queue_delayed_work(priv->workqueue, &priv->rf_kill, + 2 * HZ); + return 0; + } + + rc = ipw_config(priv); + if (!rc) { + IPW_DEBUG_INFO("Configured device on count %i\n", i); + ipw_led_init(priv); + ipw_led_radio_on(priv); + priv->notif_missed_beacons = 0; + priv->status |= STATUS_INIT; + + /* Set hardware WEP key if it is configured. */ + if ((priv->capability & CAP_PRIVACY_ON) && + (priv->ieee->sec.level == SEC_LEVEL_1) && + !(priv->ieee->host_encrypt || + priv->ieee->host_decrypt)) + ipw_set_hwcrypto_keys(priv); + + return 0; + } + + IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc); + IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n", + i, MAX_HW_RESTARTS); + + /* We had an error bringing up the hardware, so take it + * all the way back down so we can try again */ + ipw_down(priv); + } + + /* tried to restart and config the device for as long as our + * patience could withstand */ + IPW_ERROR("Unable to initialize device after %d attempts.\n",i); + + return -EIO; +} + + +static void ipw_bg_up(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_up(data); + up(&priv->sem); +} + +static void ipw_deinit(struct ipw_priv *priv) +{ + int i; + + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_INFO("Aborting scan during shutdown.\n"); + ipw_abort_scan(priv); + } + + if (priv->status & STATUS_ASSOCIATED) { + IPW_DEBUG_INFO("Disassociating during shutdown.\n"); + ipw_disassociate(priv); + } + + ipw_led_shutdown(priv); + + /* Wait up to 1s for status to change to not scanning and not + * associated (disassociation can take a while for a ful 802.11 + * exchange */ + for (i = 1000; i && (priv->status & + (STATUS_DISASSOCIATING | + STATUS_ASSOCIATED | + STATUS_SCANNING)); i--) + udelay(10); + + if (priv->status & (STATUS_DISASSOCIATING | + STATUS_ASSOCIATED | + STATUS_SCANNING)) + IPW_DEBUG_INFO("Still associated or scanning...\n"); + else + IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i); + + /* Attempt to disable the card */ + ipw_send_card_disable(priv, 0); + + priv->status &= ~STATUS_INIT; +} + +static void ipw_down(struct ipw_priv *priv) +{ + int exit_pending = priv->status & STATUS_EXIT_PENDING; + + priv->status |= STATUS_EXIT_PENDING; + + if (ipw_is_init(priv)) + ipw_deinit(priv); + + /* Wipe out the EXIT_PENDING status bit if we are not actually + * exiting the module */ + if (!exit_pending) + priv->status &= ~STATUS_EXIT_PENDING; + + /* tell the device to stop sending interrupts */ + ipw_disable_interrupts(priv); + + /* Clear all bits but the RF Kill */ + priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING; + netif_carrier_off(priv->net_dev); + netif_stop_queue(priv->net_dev); + + ipw_stop_nic(priv); + + ipw_led_radio_off(priv); +} + +static void ipw_bg_down(void *data) +{ + struct ipw_priv *priv = data; + down(&priv->sem); + ipw_down(data); + up(&priv->sem); +} + +#if WIRELESS_EXT < 18 +static int ipw_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct iwreq *wrq = (struct iwreq *) rq; + int ret=-1; + switch (cmd) { + case IPW_IOCTL_WPA_SUPPLICANT: + ret = ipw_wpa_supplicant(dev, &wrq->u.data); + return ret; + + default: + return -EOPNOTSUPP; + } + + return -EOPNOTSUPP; +} +#endif + +/* Called by register_netdev() */ +static int ipw_net_init(struct net_device *dev) +{ + struct ipw_priv *priv = ieee80211_priv(dev); + down(&priv->sem); + + if (ipw_up(priv)) { + up(&priv->sem); + return -EIO; + } + + up(&priv->sem); + return 0; +} + +/* PCI driver stuff */ +static struct pci_device_id card_ids[] = { + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x104f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x4220, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */ + {PCI_VENDOR_ID_INTEL, 0x4221, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */ + {PCI_VENDOR_ID_INTEL, 0x4223, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */ + {PCI_VENDOR_ID_INTEL, 0x4224, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */ + + /* required last entry */ + {0,} +}; + +MODULE_DEVICE_TABLE(pci, card_ids); + +static struct attribute *ipw_sysfs_entries[] = { + &dev_attr_rf_kill.attr, + &dev_attr_direct_dword.attr, + &dev_attr_indirect_byte.attr, + &dev_attr_indirect_dword.attr, + &dev_attr_mem_gpio_reg.attr, + &dev_attr_command_event_reg.attr, + &dev_attr_nic_type.attr, + &dev_attr_status.attr, + &dev_attr_cfg.attr, + &dev_attr_dump_errors.attr, + &dev_attr_dump_events.attr, + &dev_attr_eeprom_delay.attr, + &dev_attr_ucode_version.attr, + &dev_attr_rtc.attr, + &dev_attr_scan_age.attr, + &dev_attr_led.attr, + &dev_attr_stats.attr, + &dev_attr_speed_scan.attr, + &dev_attr_net_stats.attr, + NULL +}; + +static struct attribute_group ipw_attribute_group = { + .name = NULL, /* put in device directory */ + .attrs = ipw_sysfs_entries, +}; + +static int ipw_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int err = 0; + struct net_device *net_dev; + void __iomem *base; + u32 length, val; + struct ipw_priv *priv; + int i; + + net_dev = alloc_ieee80211(sizeof(struct ipw_priv)); + if (net_dev == NULL) { + err = -ENOMEM; + goto out; + } + + priv = ieee80211_priv(net_dev); + priv->ieee = netdev_priv(net_dev); + + priv->net_dev = net_dev; + priv->pci_dev = pdev; +#ifdef CONFIG_IPW_DEBUG + ipw_debug_level = debug; +#endif + spin_lock_init(&priv->lock); + for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) + INIT_LIST_HEAD(&priv->ibss_mac_hash[i]); + + init_MUTEX(&priv->sem); + if (pci_enable_device(pdev)) { + err = -ENODEV; + goto out_free_ieee80211; + } + + pci_set_master(pdev); + +#define PCI_DMA_32BIT 0x00000000ffffffffULL + err = pci_set_dma_mask(pdev, PCI_DMA_32BIT); + if (!err) + err = pci_set_consistent_dma_mask(pdev, PCI_DMA_32BIT); + if (err) { + printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); + goto out_pci_disable_device; + } + + pci_set_drvdata(pdev, priv); + + err = pci_request_regions(pdev, DRV_NAME); + if (err) + goto out_pci_disable_device; + + /* We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state */ + pci_read_config_dword(pdev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); + + length = pci_resource_len(pdev, 0); + priv->hw_len = length; + + base = ioremap_nocache(pci_resource_start(pdev, 0), length); + if (!base) { + err = -ENODEV; + goto out_pci_release_regions; + } + + priv->hw_base = base; + IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length); + IPW_DEBUG_INFO("pci_resource_base = %p\n", base); + + err = ipw_setup_deferred_work(priv); + if (err) { + IPW_ERROR("Unable to setup deferred work\n"); + goto out_iounmap; + } + + ipw_sw_reset(priv, 1); + + err = request_irq(pdev->irq, ipw_isr, SA_SHIRQ, DRV_NAME, priv); + if (err) { + IPW_ERROR("Error allocating IRQ %d\n", pdev->irq); + goto out_destroy_workqueue; + } + + SET_MODULE_OWNER(net_dev); + SET_NETDEV_DEV(net_dev, &pdev->dev); + + down(&priv->sem); + + priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit; + priv->ieee->set_security = shim__set_security; + +#ifdef CONFIG_IPW_QOS + priv->ieee->handle_management_frame = ipw_handle_management_frame; +#endif /* CONFIG_IPW_QOS */ + + priv->ieee->perfect_rssi = -20; + priv->ieee->worst_rssi = -85; + + net_dev->open = ipw_net_open; + net_dev->stop = ipw_net_stop; + net_dev->init = ipw_net_init; +#if WIRELESS_EXT < 18 + net_dev->do_ioctl = ipw_ioctl; +#endif + net_dev->get_stats = ipw_net_get_stats; + net_dev->set_multicast_list = ipw_net_set_multicast_list; + net_dev->set_mac_address = ipw_net_set_mac_address; + net_dev->get_wireless_stats = ipw_get_wireless_stats; + ipw_wx_handler_def.spy_offset = offsetof(struct ieee80211_device, + spy_data); + net_dev->wireless_handlers = &ipw_wx_handler_def; + net_dev->ethtool_ops = &ipw_ethtool_ops; + net_dev->irq = pdev->irq; + net_dev->base_addr = (unsigned long )priv->hw_base; + net_dev->mem_start = pci_resource_start(pdev, 0); + net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1; + + err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group); + if (err) { + IPW_ERROR("failed to create sysfs device attributes\n"); + up(&priv->sem); + goto out_release_irq; + } + + up(&priv->sem); + err = register_netdev(net_dev); + if (err) { + IPW_ERROR("failed to register network device\n"); + goto out_remove_sysfs; + } + return 0; + + out_remove_sysfs: + sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); + out_release_irq: + free_irq(pdev->irq, priv); + out_destroy_workqueue: + destroy_workqueue(priv->workqueue); + priv->workqueue = NULL; + out_iounmap: + iounmap(priv->hw_base); + out_pci_release_regions: + pci_release_regions(pdev); + out_pci_disable_device: + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + out_free_ieee80211: + free_ieee80211(priv->net_dev); + out: + return err; +} + +static void ipw_pci_remove(struct pci_dev *pdev) +{ + struct ipw_priv *priv = pci_get_drvdata(pdev); + struct list_head *p, *q; + int i; + + if (!priv) + return; + + down(&priv->sem); + + priv->status |= STATUS_EXIT_PENDING; + ipw_down(priv); + sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); + + up(&priv->sem); + + unregister_netdev(priv->net_dev); + + if (priv->rxq) { + ipw_rx_queue_free(priv, priv->rxq); + priv->rxq = NULL; + } + ipw_tx_queue_free(priv); + + /* ipw_down will ensure that there is no more pending work + * in the workqueue's, so we can safely remove them now. */ + cancel_delayed_work(&priv->adhoc_check); + cancel_delayed_work(&priv->gather_stats); + cancel_delayed_work(&priv->request_scan); + cancel_delayed_work(&priv->rf_kill); + cancel_delayed_work(&priv->scan_check); + destroy_workqueue(priv->workqueue); + priv->workqueue = NULL; + + /* Free MAC hash list for ADHOC */ + for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) { + list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { + kfree(list_entry(p, struct ipw_ibss_seq, list)); + list_del(p); + } + } + + free_irq(pdev->irq, priv); + iounmap(priv->hw_base); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + free_ieee80211(priv->net_dev); + free_firmware(); +} + + +#ifdef CONFIG_PM +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) +static int ipw_pci_suspend(struct pci_dev *pdev, u32 state) +#else +static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state) +#endif +{ + struct ipw_priv *priv = pci_get_drvdata(pdev); + struct net_device *dev = priv->net_dev; + + printk(KERN_INFO "%s: Going into suspend...\n", dev->name); + + /* Take down the device; powers it off, etc. */ + ipw_down(priv); + + /* Remove the PRESENT state of the device */ + netif_device_detach(dev); + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) + pci_save_state(pdev, priv->pm_state); +#else + pci_save_state(pdev); +#endif + pci_disable_device(pdev); + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) + pci_set_power_state(pdev, state); +#else + pci_set_power_state(pdev, PCI_D3hot); +#endif + + return 0; +} + +static int ipw_pci_resume(struct pci_dev *pdev) +{ + struct ipw_priv *priv = pci_get_drvdata(pdev); + struct net_device *dev = priv->net_dev; + u32 val; + + printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name); + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) + pci_set_power_state(pdev, 0); +#else + pci_set_power_state(pdev, PCI_D0); +#endif + pci_enable_device(pdev); +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) + pci_restore_state(pdev, priv->pm_state); +#else + pci_restore_state(pdev); +#endif + /* + * Suspend/Resume resets the PCI configuration space, so we have to + * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries + * from interfering with C3 CPU state. pci_restore_state won't help + * here since it only restores the first 64 bytes pci config header. + */ + pci_read_config_dword(pdev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); + + /* Set the device back into the PRESENT state; this will also wake + * the queue of needed */ + netif_device_attach(dev); + + /* Bring the device back up */ + queue_work(priv->workqueue, &priv->up); + + return 0; +} +#endif + +/* driver initialization stuff */ +static struct pci_driver ipw_driver = { + .name = DRV_NAME, + .id_table = card_ids, + .probe = ipw_pci_probe, + .remove = __devexit_p(ipw_pci_remove), +#ifdef CONFIG_PM + .suspend = ipw_pci_suspend, + .resume = ipw_pci_resume, +#endif +}; + +static int __init ipw_init(void) +{ + int ret; + + printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); + printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); + + ret = pci_module_init(&ipw_driver); + if (ret) { + IPW_ERROR("Unable to initialize PCI module\n"); + return ret; + } + + ret = driver_create_file(&ipw_driver.driver, + &driver_attr_debug_level); + if (ret) { + IPW_ERROR("Unable to create driver sysfs file\n"); + pci_unregister_driver(&ipw_driver); + return ret; + } + + return ret; +} + +static void __exit ipw_exit(void) +{ + driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level); + pci_unregister_driver(&ipw_driver); +} + +module_param(disable, int, 0444); +MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); + +module_param(associate, int, 0444); +MODULE_PARM_DESC(associate, "auto associate when scanning (default on)"); + +module_param(auto_create, int, 0444); +MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)"); + +module_param(led, int, 0444); +MODULE_PARM_DESC(led, "enable led control on some systems (default 0 off)\n"); + +module_param(debug, int, 0444); +MODULE_PARM_DESC(debug, "debug output mask"); + +module_param(channel, int, 0444); +MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])"); + +#ifdef CONFIG_IPW_QOS +module_param(qos_enable, int, 0444); +MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis"); + +module_param(qos_burst_enable, int, 0444); +MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode"); + +module_param(qos_no_ack_mask, int, 0444); +MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack"); + +module_param(burst_duration_CCK, int, 0444); +MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value"); + +module_param(burst_duration_OFDM, int, 0444); +MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value"); +#endif /* CONFIG_IPW_QOS */ + +#ifdef CONFIG_IPW2200_MONITOR +module_param(mode, int, 0444); +MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)"); +#else +module_param(mode, int, 0444); +MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)"); +#endif + +module_param(hwcrypto, int, 0444); +MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default on)"); + +module_exit(ipw_exit); +module_init(ipw_init); diff -ruNpax '*.orig' linux-2.6.13-rc3-ieee80211/drivers/net/wireless/ipw2200.h linux-2.6.13-rc3-ipw2200/drivers/net/wireless/ipw2200.h --- linux-2.6.13-rc3-ieee80211/drivers/net/wireless/ipw2200.h 1970-01-01 08:00:00.000000000 +0800 +++ linux-2.6.13-rc3-ipw2200/drivers/net/wireless/ipw2200.h 2005-07-23 00:34:08.000000000 +0800 @@ -0,0 +1,1987 @@ +/****************************************************************************** + + Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved. + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + James P. Ketrenos + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ + +#ifndef __ipw2200_h__ +#define __ipw2200_h__ + +#define WEXT_USECHANNELS 1 + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#define DRV_NAME "ipw2200" + +#include + +#ifndef IRQ_NONE +typedef void irqreturn_t; +#define IRQ_NONE +#define IRQ_HANDLED +#define IRQ_RETVAL(x) +#endif + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9) ) +#define __iomem +#endif + +#if !defined(CONFIG_SOFTWARE_SUSPEND2_BUILTIN) && \ + (defined(CONFIG_SUSPEND2) || \ + defined(CONFIG_SOFTWARE_SUSPEND2) || \ + defined(CONFIG_SOFTWARE_SUSPEND2_MODULE)) +#define CONFIG_SOFTWARE_SUSPEND2_BUILTIN +#endif + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) ) +#define pci_dma_sync_single_for_cpu pci_dma_sync_single +#define pci_dma_sync_single_for_device pci_dma_sync_single +#endif + +#ifndef HAVE_FREE_NETDEV +#define free_netdev(x) kfree(x) +#endif + +/* Authentication and Association States */ +enum connection_manager_assoc_states +{ + CMAS_INIT = 0, + CMAS_TX_AUTH_SEQ_1, + CMAS_RX_AUTH_SEQ_2, + CMAS_AUTH_SEQ_1_PASS, + CMAS_AUTH_SEQ_1_FAIL, + CMAS_TX_AUTH_SEQ_3, + CMAS_RX_AUTH_SEQ_4, + CMAS_AUTH_SEQ_2_PASS, + CMAS_AUTH_SEQ_2_FAIL, + CMAS_AUTHENTICATED, + CMAS_TX_ASSOC, + CMAS_RX_ASSOC_RESP, + CMAS_ASSOCIATED, + CMAS_LAST +}; + + +#define IPW_NORMAL 0 +#define IPW_NOWAIT 0 +#define IPW_WAIT (1<<0) +#define IPW_QUIET (1<<1) +#define IPW_ROAMING (1<<2) + +#define IPW_POWER_MODE_CAM 0x00 //(always on) +#define IPW_POWER_INDEX_1 0x01 +#define IPW_POWER_INDEX_2 0x02 +#define IPW_POWER_INDEX_3 0x03 +#define IPW_POWER_INDEX_4 0x04 +#define IPW_POWER_INDEX_5 0x05 +#define IPW_POWER_AC 0x06 +#define IPW_POWER_BATTERY 0x07 +#define IPW_POWER_LIMIT 0x07 +#define IPW_POWER_MASK 0x0F +#define IPW_POWER_ENABLED 0x10 +#define IPW_POWER_LEVEL(x) ((x) & IPW_POWER_MASK) + +#define IPW_CMD_HOST_COMPLETE 2 +#define IPW_CMD_POWER_DOWN 4 +#define IPW_CMD_SYSTEM_CONFIG 6 +#define IPW_CMD_MULTICAST_ADDRESS 7 +#define IPW_CMD_SSID 8 +#define IPW_CMD_ADAPTER_ADDRESS 11 +#define IPW_CMD_PORT_TYPE 12 +#define IPW_CMD_RTS_THRESHOLD 15 +#define IPW_CMD_FRAG_THRESHOLD 16 +#define IPW_CMD_POWER_MODE 17 +#define IPW_CMD_WEP_KEY 18 +#define IPW_CMD_TGI_TX_KEY 19 +#define IPW_CMD_SCAN_REQUEST 20 +#define IPW_CMD_ASSOCIATE 21 +#define IPW_CMD_SUPPORTED_RATES 22 +#define IPW_CMD_SCAN_ABORT 23 +#define IPW_CMD_TX_FLUSH 24 +#define IPW_CMD_QOS_PARAMETERS 25 +#define IPW_CMD_SCAN_REQUEST_EXT 26 +#define IPW_CMD_DINO_CONFIG 30 +#define IPW_CMD_RSN_CAPABILITIES 31 +#define IPW_CMD_RX_KEY 32 +#define IPW_CMD_CARD_DISABLE 33 +#define IPW_CMD_SEED_NUMBER 34 +#define IPW_CMD_TX_POWER 35 +#define IPW_CMD_COUNTRY_INFO 36 +#define IPW_CMD_AIRONET_INFO 37 +#define IPW_CMD_AP_TX_POWER 38 +#define IPW_CMD_CCKM_INFO 39 +#define IPW_CMD_CCX_VER_INFO 40 +#define IPW_CMD_SET_CALIBRATION 41 +#define IPW_CMD_SENSITIVITY_CALIB 42 +#define IPW_CMD_RETRY_LIMIT 51 +#define IPW_CMD_IPW_PRE_POWER_DOWN 58 +#define IPW_CMD_VAP_BEACON_TEMPLATE 60 +#define IPW_CMD_VAP_DTIM_PERIOD 61 +#define IPW_CMD_EXT_SUPPORTED_RATES 62 +#define IPW_CMD_VAP_LOCAL_TX_PWR_CONSTRAINT 63 +#define IPW_CMD_VAP_QUIET_INTERVALS 64 +#define IPW_CMD_VAP_CHANNEL_SWITCH 65 +#define IPW_CMD_VAP_MANDATORY_CHANNELS 66 +#define IPW_CMD_VAP_CELL_PWR_LIMIT 67 +#define IPW_CMD_VAP_CF_PARAM_SET 68 +#define IPW_CMD_VAP_SET_BEACONING_STATE 69 +#define IPW_CMD_MEASUREMENT 80 +#define IPW_CMD_POWER_CAPABILITY 81 +#define IPW_CMD_SUPPORTED_CHANNELS 82 +#define IPW_CMD_TPC_REPORT 83 +#define IPW_CMD_WME_INFO 84 +#define IPW_CMD_PRODUCTION_COMMAND 85 +#define IPW_CMD_LINKSYS_EOU_INFO 90 + +#define RFD_SIZE 4 +#define NUM_TFD_CHUNKS 6 + +#define TX_QUEUE_SIZE 32 +#define RX_QUEUE_SIZE 32 + +#define DINO_CMD_WEP_KEY 0x08 +#define DINO_CMD_TX 0x0B +#define DCT_ANTENNA_A 0x01 +#define DCT_ANTENNA_B 0x02 + +#define IPW_A_MODE 0 +#define IPW_B_MODE 1 +#define IPW_G_MODE 2 + +/* + * TX Queue Flag Definitions + */ + +/* tx wep key definition */ +#define DCT_WEP_KEY_NOT_IMMIDIATE 0x00 +#define DCT_WEP_KEY_64Bit 0x40 +#define DCT_WEP_KEY_128Bit 0x80 +#define DCT_WEP_KEY_128bitIV 0xC0 +#define DCT_WEP_KEY_SIZE_MASK 0xC0 + +#define DCT_WEP_KEY_INDEX_MASK 0x0F +#define DCT_WEP_INDEX_USE_IMMEDIATE 0x20 + +/* abort attempt if mgmt frame is rx'd */ +#define DCT_FLAG_ABORT_MGMT 0x01 + +/* require CTS */ +#define DCT_FLAG_CTS_REQUIRED 0x02 + +/* use short preamble */ +#define DCT_FLAG_LONG_PREAMBLE 0x00 +#define DCT_FLAG_SHORT_PREAMBLE 0x04 + +/* RTS/CTS first */ +#define DCT_FLAG_RTS_REQD 0x08 + +/* dont calculate duration field */ +#define DCT_FLAG_DUR_SET 0x10 + +/* even if MAC WEP set (allows pre-encrypt) */ +#define DCT_FLAG_NO_WEP 0x20 + +/* overwrite TSF field */ +#define DCT_FLAG_TSF_REQD 0x40 + +/* ACK rx is expected to follow */ +#define DCT_FLAG_ACK_REQD 0x80 + +/* TX flags extention */ +#define DCT_FLAG_EXT_MODE_CCK 0x01 +#define DCT_FLAG_EXT_MODE_OFDM 0x00 + +#define DCT_FLAG_EXT_SECURITY_WEP 0x00 +#define DCT_FLAG_EXT_SECURITY_NO DCT_FLAG_EXT_SECURITY_WEP +#define DCT_FLAG_EXT_SECURITY_CKIP 0x04 +#define DCT_FLAG_EXT_SECURITY_CCM 0x08 +#define DCT_FLAG_EXT_SECURITY_TKIP 0x0C +#define DCT_FLAG_EXT_SECURITY_MASK 0x0C + +#define DCT_FLAG_EXT_QOS_SUPPORT 0x10 + +#define DCT_FLAG_EXT_HC_NO_SIFS_PIFS 0x00 +#define DCT_FLAG_EXT_HC_SIFS 0x20 +#define DCT_FLAG_EXT_HC_PIFS 0x40 + + +#define TX_RX_TYPE_MASK 0xFF +#define TX_FRAME_TYPE 0x00 +#define TX_HOST_COMMAND_TYPE 0x01 +#define RX_FRAME_TYPE 0x09 +#define RX_HOST_NOTIFICATION_TYPE 0x03 +#define RX_HOST_CMD_RESPONSE_TYPE 0x04 +#define RX_TX_FRAME_RESPONSE_TYPE 0x05 +#define TFD_NEED_IRQ_MASK 0x04 + +#define HOST_CMD_DINO_CONFIG 30 + +#define HOST_NOTIFICATION_STATUS_ASSOCIATED 10 +#define HOST_NOTIFICATION_STATUS_AUTHENTICATE 11 +#define HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT 12 +#define HOST_NOTIFICATION_STATUS_SCAN_COMPLETED 13 +#define HOST_NOTIFICATION_STATUS_FRAG_LENGTH 14 +#define HOST_NOTIFICATION_STATUS_LINK_DETERIORATION 15 +#define HOST_NOTIFICATION_DINO_CONFIG_RESPONSE 16 +#define HOST_NOTIFICATION_STATUS_BEACON_STATE 17 +#define HOST_NOTIFICATION_STATUS_TGI_TX_KEY 18 +#define HOST_NOTIFICATION_TX_STATUS 19 +#define HOST_NOTIFICATION_CALIB_KEEP_RESULTS 20 +#define HOST_NOTIFICATION_MEASUREMENT_STARTED 21 +#define HOST_NOTIFICATION_MEASUREMENT_ENDED 22 +#define HOST_NOTIFICATION_CHANNEL_SWITCHED 23 +#define HOST_NOTIFICATION_RX_DURING_QUIET_PERIOD 24 +#define HOST_NOTIFICATION_NOISE_STATS 25 +#define HOST_NOTIFICATION_S36_MEASUREMENT_ACCEPTED 30 +#define HOST_NOTIFICATION_S36_MEASUREMENT_REFUSED 31 + +#define HOST_NOTIFICATION_STATUS_BEACON_MISSING 1 +#define IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT 9 +#define IPW_MB_ROAMING_THRESHOLD_DEFAULT 8 +#define IPW_REAL_RATE_RX_PACKET_THRESHOLD 300 + +#define MACADRR_BYTE_LEN 6 + +#define DCR_TYPE_AP 0x01 +#define DCR_TYPE_WLAP 0x02 +#define DCR_TYPE_MU_ESS 0x03 +#define DCR_TYPE_MU_IBSS 0x04 +#define DCR_TYPE_MU_PIBSS 0x05 +#define DCR_TYPE_SNIFFER 0x06 +#define DCR_TYPE_MU_BSS DCR_TYPE_MU_ESS + +/* QoS definitions */ + +#define CW_MIN_OFDM 15 +#define CW_MAX_OFDM 1023 +#define CW_MIN_CCK 31 +#define CW_MAX_CCK 1023 + +#define QOS_TX0_CW_MIN_OFDM CW_MIN_OFDM +#define QOS_TX1_CW_MIN_OFDM CW_MIN_OFDM +#define QOS_TX2_CW_MIN_OFDM ( (CW_MIN_OFDM + 1) / 2 - 1 ) +#define QOS_TX3_CW_MIN_OFDM ( (CW_MIN_OFDM + 1) / 4 - 1 ) + +#define QOS_TX0_CW_MIN_CCK CW_MIN_CCK +#define QOS_TX1_CW_MIN_CCK CW_MIN_CCK +#define QOS_TX2_CW_MIN_CCK ( (CW_MIN_CCK + 1) / 2 - 1 ) +#define QOS_TX3_CW_MIN_CCK ( (CW_MIN_CCK + 1) / 4 - 1 ) + +#define QOS_TX0_CW_MAX_OFDM CW_MAX_OFDM +#define QOS_TX1_CW_MAX_OFDM CW_MAX_OFDM +#define QOS_TX2_CW_MAX_OFDM CW_MIN_OFDM +#define QOS_TX3_CW_MAX_OFDM ( (CW_MIN_OFDM + 1) / 2 - 1 ) + +#define QOS_TX0_CW_MAX_CCK CW_MAX_CCK +#define QOS_TX1_CW_MAX_CCK CW_MAX_CCK +#define QOS_TX2_CW_MAX_CCK CW_MIN_CCK +#define QOS_TX3_CW_MAX_CCK ( (CW_MIN_CCK + 1) / 2 - 1 ) + +#define QOS_TX0_AIFS (3 - QOS_AIFSN_MIN_VALUE) +#define QOS_TX1_AIFS (7 - QOS_AIFSN_MIN_VALUE) +#define QOS_TX2_AIFS (2 - QOS_AIFSN_MIN_VALUE) +#define QOS_TX3_AIFS (2 - QOS_AIFSN_MIN_VALUE) + +#define QOS_TX0_ACM 0 +#define QOS_TX1_ACM 0 +#define QOS_TX2_ACM 0 +#define QOS_TX3_ACM 0 + +#define QOS_TX0_TXOP_LIMIT_CCK 0 +#define QOS_TX1_TXOP_LIMIT_CCK 0 +#define QOS_TX2_TXOP_LIMIT_CCK 6016 +#define QOS_TX3_TXOP_LIMIT_CCK 3264 + +#define QOS_TX0_TXOP_LIMIT_OFDM 0 +#define QOS_TX1_TXOP_LIMIT_OFDM 0 +#define QOS_TX2_TXOP_LIMIT_OFDM 3008 +#define QOS_TX3_TXOP_LIMIT_OFDM 1504 + + +#define DEF_TX0_CW_MIN_OFDM CW_MIN_OFDM +#define DEF_TX1_CW_MIN_OFDM CW_MIN_OFDM +#define DEF_TX2_CW_MIN_OFDM CW_MIN_OFDM +#define DEF_TX3_CW_MIN_OFDM CW_MIN_OFDM + +#define DEF_TX0_CW_MIN_CCK CW_MIN_CCK +#define DEF_TX1_CW_MIN_CCK CW_MIN_CCK +#define DEF_TX2_CW_MIN_CCK CW_MIN_CCK +#define DEF_TX3_CW_MIN_CCK CW_MIN_CCK + +#define DEF_TX0_CW_MAX_OFDM CW_MAX_OFDM +#define DEF_TX1_CW_MAX_OFDM CW_MAX_OFDM +#define DEF_TX2_CW_MAX_OFDM CW_MAX_OFDM +#define DEF_TX3_CW_MAX_OFDM CW_MAX_OFDM + +#define DEF_TX0_CW_MAX_CCK CW_MAX_CCK +#define DEF_TX1_CW_MAX_CCK CW_MAX_CCK +#define DEF_TX2_CW_MAX_CCK CW_MAX_CCK +#define DEF_TX3_CW_MAX_CCK CW_MAX_CCK + +#define DEF_TX0_AIFS 0 +#define DEF_TX1_AIFS 0 +#define DEF_TX2_AIFS 0 +#define DEF_TX3_AIFS 0 + +#define DEF_TX0_ACM 0 +#define DEF_TX1_ACM 0 +#define DEF_TX2_ACM 0 +#define DEF_TX3_ACM 0 + + +#define DEF_TX0_TXOP_LIMIT_CCK 0 +#define DEF_TX1_TXOP_LIMIT_CCK 0 +#define DEF_TX2_TXOP_LIMIT_CCK 0 +#define DEF_TX3_TXOP_LIMIT_CCK 0 + +#define DEF_TX0_TXOP_LIMIT_OFDM 0 +#define DEF_TX1_TXOP_LIMIT_OFDM 0 +#define DEF_TX2_TXOP_LIMIT_OFDM 0 +#define DEF_TX3_TXOP_LIMIT_OFDM 0 + +#define QOS_QOS_SETS 3 +#define QOS_PARAM_SET_ACTIVE 0 +#define QOS_PARAM_SET_DEF_CCK 1 +#define QOS_PARAM_SET_DEF_OFDM 2 + +#define CTRL_QOS_NO_ACK (0x0020) +#define DCT_FLAG_EXT_QOS_ENABLED (0x10) + + + +#define IPW_TX_QUEUE_1 1 +#define IPW_TX_QUEUE_2 2 +#define IPW_TX_QUEUE_3 3 +#define IPW_TX_QUEUE_4 4 + +/* QoS sturctures */ +struct ipw_qos_info{ + int qos_enable; + struct ieee80211_qos_parameters *def_qos_parm_OFDM; + struct ieee80211_qos_parameters *def_qos_parm_CCK; + u32 burst_duration_CCK; + u32 burst_duration_OFDM; + u16 qos_no_ack_mask; + int burst_enable; +}; + + +/**************************************************************/ +/** + * Generic queue structure + * + * Contains common data for Rx and Tx queues + */ +struct clx2_queue { + int n_bd; /**< number of BDs in this queue */ + int first_empty; /**< 1-st empty entry (index) */ + int last_used; /**< last used entry (index) */ + u32 reg_w; /**< 'write' reg (queue head), addr in domain 1 */ + u32 reg_r; /**< 'read' reg (queue tail), addr in domain 1 */ + dma_addr_t dma_addr; /**< physical addr for BD's */ + int low_mark; /**< low watermark, resume queue if free space more than this */ + int high_mark; /**< high watermark, stop queue if free space less than this */ +} __attribute__ ((packed)); + +struct machdr32 +{ + u16 frame_ctl; + u16 duration; // watch out for endians! + u8 addr1[ MACADRR_BYTE_LEN ]; + u8 addr2[ MACADRR_BYTE_LEN ]; + u8 addr3[ MACADRR_BYTE_LEN ]; + u16 seq_ctrl; // more endians! + u8 addr4[ MACADRR_BYTE_LEN ]; + u16 qos_ctrl; +} __attribute__ ((packed)) ; + +struct machdr30 +{ + u16 frame_ctl; + u16 duration; // watch out for endians! + u8 addr1[ MACADRR_BYTE_LEN ]; + u8 addr2[ MACADRR_BYTE_LEN ]; + u8 addr3[ MACADRR_BYTE_LEN ]; + u16 seq_ctrl; // more endians! + u8 addr4[ MACADRR_BYTE_LEN ]; +} __attribute__ ((packed)) ; + +struct machdr26 +{ + u16 frame_ctl; + u16 duration; // watch out for endians! + u8 addr1[ MACADRR_BYTE_LEN ]; + u8 addr2[ MACADRR_BYTE_LEN ]; + u8 addr3[ MACADRR_BYTE_LEN ]; + u16 seq_ctrl; // more endians! + u16 qos_ctrl; +} __attribute__ ((packed)) ; + +struct machdr24 +{ + u16 frame_ctl; + u16 duration; // watch out for endians! + u8 addr1[ MACADRR_BYTE_LEN ]; + u8 addr2[ MACADRR_BYTE_LEN ]; + u8 addr3[ MACADRR_BYTE_LEN ]; + u16 seq_ctrl; // more endians! +} __attribute__ ((packed)) ; + +// TX TFD with 32 byte MAC Header +struct tx_tfd_32 +{ + struct machdr32 mchdr; // 32 + u32 uivplaceholder[2]; // 8 +} __attribute__ ((packed)) ; + +// TX TFD with 30 byte MAC Header +struct tx_tfd_30 +{ + struct machdr30 mchdr; // 30 + u8 reserved[2]; // 2 + u32 uivplaceholder[2]; // 8 +} __attribute__ ((packed)) ; + +// tx tfd with 26 byte mac header +struct tx_tfd_26 +{ + struct machdr26 mchdr; // 26 + u8 reserved1[2]; // 2 + u32 uivplaceholder[2]; // 8 + u8 reserved2[4]; // 4 +} __attribute__ ((packed)) ; + +// tx tfd with 24 byte mac header +struct tx_tfd_24 +{ + struct machdr24 mchdr; // 24 + u32 uivplaceholder[2]; // 8 + u8 reserved[8]; // 8 +} __attribute__ ((packed)) ; + + +#define DCT_WEP_KEY_FIELD_LENGTH 16 + +struct tfd_command +{ + u8 index; + u8 length; + u16 reserved; + u8 payload[0]; +} __attribute__ ((packed)) ; + +struct tfd_data { + /* Header */ + u32 work_area_ptr; + u8 station_number; /* 0 for BSS */ + u8 reserved1; + u16 reserved2; + + /* Tx Parameters */ + u8 cmd_id; + u8 seq_num; + u16 len; + u8 priority; + u8 tx_flags; + u8 tx_flags_ext; + u8 key_index; + u8 wepkey[DCT_WEP_KEY_FIELD_LENGTH]; + u8 rate; + u8 antenna; + u16 next_packet_duration; + u16 next_frag_len; + u16 back_off_counter; //////txop; + u8 retrylimit; + u16 cwcurrent; + u8 reserved3; + + /* 802.11 MAC Header */ + union + { + struct tx_tfd_24 tfd_24; + struct tx_tfd_26 tfd_26; + struct tx_tfd_30 tfd_30; + struct tx_tfd_32 tfd_32; + } tfd; + + /* Payload DMA info */ + u32 num_chunks; + u32 chunk_ptr[NUM_TFD_CHUNKS]; + u16 chunk_len[NUM_TFD_CHUNKS]; +} __attribute__ ((packed)); + +struct txrx_control_flags +{ + u8 message_type; + u8 rx_seq_num; + u8 control_bits; + u8 reserved; +} __attribute__ ((packed)); + +#define TFD_SIZE 128 +#define TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH (TFD_SIZE - sizeof(struct txrx_control_flags)) + +struct tfd_frame +{ + struct txrx_control_flags control_flags; + union { + struct tfd_data data; + struct tfd_command cmd; + u8 raw[TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH]; + } u; +} __attribute__ ((packed)) ; + +typedef void destructor_func(const void*); + +/** + * Tx Queue for DMA. Queue consists of circular buffer of + * BD's and required locking structures. + */ +struct clx2_tx_queue { + struct clx2_queue q; + struct tfd_frame* bd; + struct ieee80211_txb **txb; +}; + +/* + * RX related structures and functions + */ +#define RX_FREE_BUFFERS 32 +#define RX_LOW_WATERMARK 8 + +#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 +#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 +#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 + +// Used for passing to driver number of successes and failures per rate +struct rate_histogram +{ + union { + u32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; + u32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; + u32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; + } success; + union { + u32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; + u32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; + u32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; + } failed; +} __attribute__ ((packed)); + +/* statistics command response */ +struct ipw_cmd_stats { + u8 cmd_id; + u8 seq_num; + u16 good_sfd; + u16 bad_plcp; + u16 wrong_bssid; + u16 valid_mpdu; + u16 bad_mac_header; + u16 reserved_frame_types; + u16 rx_ina; + u16 bad_crc32; + u16 invalid_cts; + u16 invalid_acks; + u16 long_distance_ina_fina; + u16 dsp_silence_unreachable; + u16 accumulated_rssi; + u16 rx_ovfl_frame_tossed; + u16 rssi_silence_threshold; + u16 rx_ovfl_frame_supplied; + u16 last_rx_frame_signal; + u16 last_rx_frame_noise; + u16 rx_autodetec_no_ofdm; + u16 rx_autodetec_no_barker; + u16 reserved; +} __attribute__ ((packed)); + +struct notif_channel_result { + u8 channel_num; + struct ipw_cmd_stats stats; + u8 uReserved; +} __attribute__ ((packed)); + +struct notif_scan_complete { + u8 scan_type; + u8 num_channels; + u8 status; + u8 reserved; +} __attribute__ ((packed)); + +struct notif_frag_length { + u16 frag_length; + u16 reserved; +} __attribute__ ((packed)); + +struct notif_beacon_state { + u32 state; + u32 number; +} __attribute__ ((packed)); + +struct notif_tgi_tx_key { + u8 key_state; + u8 security_type; + u8 station_index; + u8 reserved; +} __attribute__ ((packed)); + +struct notif_link_deterioration { + struct ipw_cmd_stats stats; + u8 rate; + u8 modulation; + struct rate_histogram histogram; + u8 reserved1; + u16 reserved2; +} __attribute__ ((packed)); + +struct notif_association { + u8 state; +} __attribute__ ((packed)); + +struct notif_authenticate { + u8 state; + struct machdr24 addr; + u16 status; +} __attribute__ ((packed)); + +struct temperature +{ + s32 measured; + s32 active; +} __attribute__ ((packed)); + +struct notif_calibration { + u8 data[104]; +} __attribute__ ((packed)); + +struct notif_noise { + u32 value; +} __attribute__ ((packed)); + +struct ipw_rx_notification { + u8 reserved[8]; + u8 subtype; + u8 flags; + u16 size; + union { + struct notif_association assoc; + struct notif_authenticate auth; + struct notif_channel_result channel_result; + struct notif_scan_complete scan_complete; + struct notif_frag_length frag_len; + struct notif_beacon_state beacon_state; + struct notif_tgi_tx_key tgi_tx_key; + struct notif_link_deterioration link_deterioration; + struct notif_calibration calibration; + struct notif_noise noise; + u8 raw[0]; + } u; +} __attribute__ ((packed)); + +struct ipw_rx_frame { + u32 reserved1; + u8 parent_tsf[4]; // fw_use[0] is boolean for OUR_TSF_IS_GREATER + u8 received_channel; // The channel that this frame was received on. + // Note that for .11b this does not have to be + // the same as the channel that it was sent. + // Filled by LMAC + u8 frameStatus; + u8 rate; + u8 rssi; + u8 agc; + u8 rssi_dbm; + u16 signal; + u16 noise; + u8 antennaAndPhy; + u8 control; // control bit should be on in bg + u8 rtscts_rate; // rate of rts or cts (in rts cts sequence rate + // is identical) + u8 rtscts_seen; // 0x1 RTS seen ; 0x2 CTS seen + u16 length; + u8 data[0]; +} __attribute__ ((packed)); + +struct ipw_rx_header { + u8 message_type; + u8 rx_seq_num; + u8 control_bits; + u8 reserved; +} __attribute__ ((packed)); + +struct ipw_rx_packet +{ + struct ipw_rx_header header; + union { + struct ipw_rx_frame frame; + struct ipw_rx_notification notification; + } u; +} __attribute__ ((packed)); + +#define IPW_RX_NOTIFICATION_SIZE sizeof(struct ipw_rx_header) + 12 +#define IPW_RX_FRAME_SIZE (unsigned int)(sizeof(struct ipw_rx_header) + \ + sizeof(struct ipw_rx_frame)) + +struct ipw_rx_mem_buffer { + dma_addr_t dma_addr; + struct ipw_rx_buffer *rxb; + struct sk_buff *skb; + struct list_head list; +}; /* Not transferred over network, so not __attribute__ ((packed)) */ + +struct ipw_rx_queue { + struct ipw_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; + struct ipw_rx_mem_buffer *queue[RX_QUEUE_SIZE]; + u32 processed; /* Internal index to last handled Rx packet */ + u32 read; /* Shared index to newest available Rx buffer */ + u32 write; /* Shared index to oldest written Rx packet */ + u32 free_count;/* Number of pre-allocated buffers in rx_free */ + /* Each of these lists is used as a FIFO for ipw_rx_mem_buffers */ + struct list_head rx_free; /* Own an SKBs */ + struct list_head rx_used; /* No SKB allocated */ + spinlock_t lock; +}; /* Not transferred over network, so not __attribute__ ((packed)) */ + + +struct alive_command_responce { + u8 alive_command; + u8 sequence_number; + u16 software_revision; + u8 device_identifier; + u8 reserved1[5]; + u16 reserved2; + u16 reserved3; + u16 clock_settle_time; + u16 powerup_settle_time; + u16 reserved4; + u8 time_stamp[5]; /* month, day, year, hours, minutes */ + u8 ucode_valid; +} __attribute__ ((packed)); + +#define IPW_MAX_RATES 12 + +struct ipw_rates { + u8 num_rates; + u8 rates[IPW_MAX_RATES]; +} __attribute__ ((packed)); + +struct command_block +{ + unsigned int control; + u32 source_addr; + u32 dest_addr; + unsigned int status; +} __attribute__ ((packed)); + +#define CB_NUMBER_OF_ELEMENTS_SMALL 64 +struct fw_image_desc +{ + unsigned long last_cb_index; + unsigned long current_cb_index; + struct command_block cb_list[CB_NUMBER_OF_ELEMENTS_SMALL]; + void * v_addr; + unsigned long p_addr; + unsigned long len; +}; + +struct ipw_sys_config +{ + u8 bt_coexistence; + u8 reserved1; + u8 answer_broadcast_ssid_probe; + u8 accept_all_data_frames; + u8 accept_non_directed_frames; + u8 exclude_unicast_unencrypted; + u8 disable_unicast_decryption; + u8 exclude_multicast_unencrypted; + u8 disable_multicast_decryption; + u8 antenna_diversity; + u8 pass_crc_to_host; + u8 dot11g_auto_detection; + u8 enable_cts_to_self; + u8 enable_multicast_filtering; + u8 bt_coexist_collision_thr; + u8 reserved2; + u8 accept_all_mgmt_bcpr; + u8 accept_all_mgtm_frames; + u8 pass_noise_stats_to_host; + u8 reserved3; +} __attribute__ ((packed)); + +struct ipw_multicast_addr +{ + u8 num_of_multicast_addresses; + u8 reserved[3]; + u8 mac1[6]; + u8 mac2[6]; + u8 mac3[6]; + u8 mac4[6]; +} __attribute__ ((packed)); + +#define DCW_WEP_KEY_INDEX_MASK 0x03 /* bits [0:1] */ +#define DCW_WEP_KEY_SEC_TYPE_MASK 0x30 /* bits [4:5] */ + +#define DCW_WEP_KEY_SEC_TYPE_WEP 0x00 +#define DCW_WEP_KEY_SEC_TYPE_CCM 0x20 +#define DCW_WEP_KEY_SEC_TYPE_TKIP 0x30 + +#define DCW_WEP_KEY_INVALID_SIZE 0x00 /* 0 = Invalid key */ +#define DCW_WEP_KEY64Bit_SIZE 0x05 /* 64-bit encryption */ +#define DCW_WEP_KEY128Bit_SIZE 0x0D /* 128-bit encryption */ +#define DCW_CCM_KEY128Bit_SIZE 0x10 /* 128-bit key */ +//#define DCW_WEP_KEY128BitIV_SIZE 0x10 /* 128-bit key and 128-bit IV */ + +struct ipw_wep_key +{ + u8 cmd_id; + u8 seq_num; + u8 key_index; + u8 key_size; + u8 key[16]; +} __attribute__ ((packed)); + +struct ipw_tgi_tx_key +{ + u8 key_id; + u8 security_type; + u8 station_index; + u8 flags; + u8 key[16]; + u32 tx_counter[2]; +} __attribute__ ((packed)); + +#define IPW_SCAN_CHANNELS 54 + +struct ipw_scan_request +{ + u8 scan_type; + u16 dwell_time; + u8 channels_list[IPW_SCAN_CHANNELS]; + u8 channels_reserved[3]; +} __attribute__ ((packed)); + +enum { + IPW_SCAN_PASSIVE_TILL_FIRST_BEACON_SCAN = 0, + IPW_SCAN_PASSIVE_FULL_DWELL_SCAN, + IPW_SCAN_ACTIVE_DIRECT_SCAN, + IPW_SCAN_ACTIVE_BROADCAST_SCAN, + IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN, + IPW_SCAN_TYPES +}; + +struct ipw_scan_request_ext +{ + u32 full_scan_index; + u8 channels_list[IPW_SCAN_CHANNELS]; + u8 scan_type[IPW_SCAN_CHANNELS / 2]; + u8 reserved; + u16 dwell_time[IPW_SCAN_TYPES]; +} __attribute__ ((packed)); + +extern inline u8 ipw_get_scan_type(struct ipw_scan_request_ext *scan, u8 index) +{ + if (index % 2) + return scan->scan_type[index / 2] & 0x0F; + else + return (scan->scan_type[index / 2] & 0xF0) >> 4; +} + +extern inline void ipw_set_scan_type(struct ipw_scan_request_ext *scan, + u8 index, u8 scan_type) +{ + if (index % 2) + scan->scan_type[index / 2] = + (scan->scan_type[index / 2] & 0xF0) | + (scan_type & 0x0F); + else + scan->scan_type[index / 2] = + (scan->scan_type[index / 2] & 0x0F) | + ((scan_type & 0x0F) << 4); +} + +struct ipw_associate +{ + u8 channel; + u8 auth_type:4, + auth_key:4; + u8 assoc_type; + u8 reserved; + u16 policy_support; + u8 preamble_length; + u8 ieee_mode; + u8 bssid[ETH_ALEN]; + u32 assoc_tsf_msw; + u32 assoc_tsf_lsw; + u16 capability; + u16 listen_interval; + u16 beacon_interval; + u8 dest[ETH_ALEN]; + u16 atim_window; + u8 smr; + u8 reserved1; + u16 reserved2; +} __attribute__ ((packed)); + +struct ipw_supported_rates +{ + u8 ieee_mode; + u8 num_rates; + u8 purpose; + u8 reserved; + u8 supported_rates[IPW_MAX_RATES]; +} __attribute__ ((packed)); + +struct ipw_rts_threshold +{ + u16 rts_threshold; + u16 reserved; +} __attribute__ ((packed)); + +struct ipw_frag_threshold +{ + u16 frag_threshold; + u16 reserved; +} __attribute__ ((packed)); + +struct ipw_retry_limit +{ + u8 short_retry_limit; + u8 long_retry_limit; + u16 reserved; +} __attribute__ ((packed)); + +struct ipw_dino_config +{ + u32 dino_config_addr; + u16 dino_config_size; + u8 dino_response; + u8 reserved; +} __attribute__ ((packed)); + +struct ipw_aironet_info +{ + u8 id; + u8 length; + u16 reserved; +} __attribute__ ((packed)); + +struct ipw_rx_key +{ + u8 station_index; + u8 key_type; + u8 key_id; + u8 key_flag; + u8 key[16]; + u8 station_address[6]; + u8 key_index; + u8 reserved; +} __attribute__ ((packed)); + +struct ipw_country_channel_info +{ + u8 first_channel; + u8 no_channels; + s8 max_tx_power; +} __attribute__ ((packed)); + +struct ipw_country_info +{ + u8 id; + u8 length; + u8 country_str[3]; + struct ipw_country_channel_info groups[7]; +} __attribute__ ((packed)); + +struct ipw_channel_tx_power +{ + u8 channel_number; + s8 tx_power; +} __attribute__ ((packed)); + +#define SCAN_ASSOCIATED_INTERVAL (HZ) +#define SCAN_INTERVAL (HZ / 10) +#define MAX_A_CHANNELS 37 +#define MAX_B_CHANNELS 14 + +struct ipw_tx_power +{ + u8 num_channels; + u8 ieee_mode; + struct ipw_channel_tx_power channels_tx_power[MAX_A_CHANNELS]; +} __attribute__ ((packed)); + +struct ipw_rsn_capabilities +{ + u8 id; + u8 length; + u16 version; +} __attribute__ ((packed)); + +struct ipw_sensitivity_calib +{ + u16 beacon_rssi_raw; + u16 reserved; +} __attribute__ ((packed)); + +/** + * Host command structure. + * + * On input, the following fields should be filled: + * - cmd + * - len + * - status_len + * - param (if needed) + * + * On output, + * - \a status contains status; + * - \a param filled with status parameters. + */ +struct ipw_cmd { + u32 cmd; /**< Host command */ + u32 status; /**< Status */ + u32 status_len; /**< How many 32 bit parameters in the status */ + u32 len; /**< incoming parameters length, bytes */ + /** + * command parameters. + * There should be enough space for incoming and + * outcoming parameters. + * Incoming parameters listed 1-st, followed by outcoming params. + * nParams=(len+3)/4+status_len + */ + u32 param[0]; +} __attribute__ ((packed)); + +#define STATUS_HCMD_ACTIVE (1<<0) /**< host command in progress */ + +#define STATUS_INT_ENABLED (1<<1) +#define STATUS_RF_KILL_HW (1<<2) +#define STATUS_RF_KILL_SW (1<<3) +#define STATUS_RF_KILL_MASK (STATUS_RF_KILL_HW | STATUS_RF_KILL_SW) + +#define STATUS_INIT (1<<5) +#define STATUS_AUTH (1<<6) +#define STATUS_ASSOCIATED (1<<7) +#define STATUS_STATE_MASK (STATUS_INIT | STATUS_AUTH | STATUS_ASSOCIATED) + +#define STATUS_ASSOCIATING (1<<8) +#define STATUS_DISASSOCIATING (1<<9) +#define STATUS_ROAMING (1<<10) +#define STATUS_EXIT_PENDING (1<<11) +#define STATUS_DISASSOC_PENDING (1<<12) +#define STATUS_STATE_PENDING (1<<13) + +#define STATUS_SCAN_PENDING (1<<20) +#define STATUS_SCANNING (1<<21) +#define STATUS_SCAN_ABORTING (1<<22) +#define STATUS_SCAN_FORCED (1<<23) + +#define STATUS_LED_LINK_ON (1<<24) +#define STATUS_LED_ACT_ON (1<<25) + +#define STATUS_INDIRECT_BYTE (1<<28) /* sysfs entry configured for access */ +#define STATUS_INDIRECT_DWORD (1<<29) /* sysfs entry configured for access */ +#define STATUS_DIRECT_DWORD (1<<30) /* sysfs entry configured for access */ + +#define STATUS_SECURITY_UPDATED (1<<31) /* Security sync needed */ + +#define CFG_STATIC_CHANNEL (1<<0) /* Restrict assoc. to single channel */ +#define CFG_STATIC_ESSID (1<<1) /* Restrict assoc. to single SSID */ +#define CFG_STATIC_BSSID (1<<2) /* Restrict assoc. to single BSSID */ +#define CFG_CUSTOM_MAC (1<<3) +#define CFG_PREAMBLE_LONG (1<<4) +#define CFG_ADHOC_PERSIST (1<<5) +#define CFG_ASSOCIATE (1<<6) +#define CFG_FIXED_RATE (1<<7) +#define CFG_ADHOC_CREATE (1<<8) +#define CFG_NO_LED (1<<9) +#define CFG_BACKGROUND_SCAN (1<<10) +#define CFG_SPEED_SCAN (1<<11) +#define CFG_NET_STATS (1<<12) + +#define CAP_SHARED_KEY (1<<0) /* Off = OPEN */ +#define CAP_PRIVACY_ON (1<<1) /* Off = No privacy */ + +#define MAX_STATIONS 32 +#define IPW_INVALID_STATION (0xff) + +struct ipw_station_entry { + u8 mac_addr[ETH_ALEN]; + u8 reserved; + u8 support_mode; +}; + +#define AVG_ENTRIES 8 +struct average { + s16 entries[AVG_ENTRIES]; + u8 pos; + u8 init; + s32 sum; +}; + + +#define MAX_SPEED_SCAN 100 +#define IPW_IBSS_MAC_HASH_SIZE 31 + +struct ipw_ibss_seq { + u8 mac[ETH_ALEN]; + u16 seq_num; + u16 frag_num; + unsigned long packet_time; + struct list_head list; +}; + +struct ipw_priv { + /* ieee device used by generic ieee processing code */ + struct ieee80211_device *ieee; + + /* spinlock */ + spinlock_t lock; + struct semaphore sem; + + /* basic pci-network driver stuff */ + struct pci_dev *pci_dev; + struct net_device *net_dev; + + /* pci hardware address support */ + void __iomem *hw_base; + unsigned long hw_len; + + struct fw_image_desc sram_desc; + + /* result of ucode download */ + struct alive_command_responce dino_alive; + + wait_queue_head_t wait_command_queue; + wait_queue_head_t wait_state; + + /* Rx and Tx DMA processing queues */ + struct ipw_rx_queue *rxq; + struct clx2_tx_queue txq_cmd; + struct clx2_tx_queue txq[4]; + u32 status; + u32 config; + u32 capability; + + u8 last_rx_rssi; + u8 last_noise; + struct average average_missed_beacons; + struct average average_rssi; + struct average average_noise; + u32 port_type; + int rx_bufs_min; /**< minimum number of bufs in Rx queue */ + int rx_pend_max; /**< maximum pending buffers for one IRQ */ + u32 hcmd_seq; /**< sequence number for hcmd */ + u32 disassociate_threshold; + u32 roaming_threshold; + + struct ipw_associate assoc_request; + struct ieee80211_network *assoc_network; + + unsigned long ts_scan_abort; + struct ipw_supported_rates rates; + struct ipw_rates phy[3]; /**< PHY restrictions, per band */ + struct ipw_rates supp; /**< software defined */ + struct ipw_rates extended; /**< use for corresp. IE, AP only */ + + struct notif_link_deterioration last_link_deterioration; /** for statistics */ + struct ipw_cmd* hcmd; /**< host command currently executed */ + + wait_queue_head_t hcmd_wq; /**< host command waits for execution */ + u32 tsf_bcn[2]; /**< TSF from latest beacon */ + + struct notif_calibration calib; /**< last calibration */ + + /* ordinal interface with firmware */ + u32 table0_addr; + u32 table0_len; + u32 table1_addr; + u32 table1_len; + u32 table2_addr; + u32 table2_len; + + /* context information */ + u8 essid[IW_ESSID_MAX_SIZE]; + u8 essid_len; + u8 nick[IW_ESSID_MAX_SIZE]; + u16 rates_mask; + u8 channel; + struct ipw_sys_config sys_config; + u32 power_mode; + u8 bssid[ETH_ALEN]; + u16 rts_threshold; + u8 mac_addr[ETH_ALEN]; + u8 num_stations; + u8 stations[MAX_STATIONS][ETH_ALEN]; + u8 short_retry_limit; + u8 long_retry_limit; + + u32 notif_missed_beacons; + + /* Statistics and counters normalized with each association */ + u32 last_missed_beacons; + u32 last_tx_packets; + u32 last_rx_packets; + u32 last_tx_failures; + u32 last_rx_err; + u32 last_rate; + + u32 missed_adhoc_beacons; + u32 missed_beacons; + u32 rx_packets; + u32 tx_packets; + u32 quality; + + u8 speed_scan[MAX_SPEED_SCAN]; + u8 speed_scan_pos; + + u16 last_seq_num; + u16 last_frag_num; + unsigned long last_packet_time; + struct list_head ibss_mac_hash[IPW_IBSS_MAC_HASH_SIZE]; + + /* eeprom */ + u8 eeprom[0x100]; /* 256 bytes of eeprom */ + u8 country[4]; + int eeprom_delay; + + struct iw_statistics wstats; + + struct workqueue_struct *workqueue; + + struct work_struct adhoc_check; + struct work_struct associate; + struct work_struct disassociate; + struct work_struct system_config; + struct work_struct rx_replenish; + struct work_struct request_scan; + struct work_struct adapter_restart; + struct work_struct rf_kill; + struct work_struct up; + struct work_struct down; + struct work_struct gather_stats; + struct work_struct abort_scan; + struct work_struct roam; + struct work_struct scan_check; + struct work_struct link_up; + struct work_struct link_down; + + struct tasklet_struct irq_tasklet; + + /* LED related variables and work_struct */ + u8 nic_type; + u32 led_activity_on; + u32 led_activity_off; + u32 led_association_on; + u32 led_association_off; + u32 led_ofdm_on; + u32 led_ofdm_off; + + struct work_struct led_link_on; + struct work_struct led_link_off; + struct work_struct led_act_off; + + struct work_struct merge_networks; + +#define IPW_2200BG 1 +#define IPW_2915ABG 2 + u8 adapter; + + s8 tx_power; + +#ifdef CONFIG_PM + u32 pm_state[16]; +#endif + + /* network state */ + + /* Used to pass the current INTA value from ISR to Tasklet */ + u32 isr_inta; + + /* QoS */ + struct ipw_qos_info qos_data; + struct work_struct qos_activate; + /*********************************/ + + /* debugging info */ + u32 indirect_dword; + u32 direct_dword; + u32 indirect_byte; +}; /*ipw_priv */ + + +/* debug macros */ + +#ifdef CONFIG_IPW_DEBUG +#define IPW_DEBUG(level, fmt, args...) \ +do { if (ipw_debug_level & (level)) \ + printk(KERN_DEBUG DRV_NAME": %c %s " fmt, \ + in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) +#else +#define IPW_DEBUG(level, fmt, args...) do {} while (0) +#endif /* CONFIG_IPW_DEBUG */ + +/* + * To use the debug system; + * + * If you are defining a new debug classification, simply add it to the #define + * list here in the form of: + * + * #define IPW_DL_xxxx VALUE + * + * shifting value to the left one bit from the previous entry. xxxx should be + * the name of the classification (for example, WEP) + * + * You then need to either add a IPW_xxxx_DEBUG() macro definition for your + * classification, or use IPW_DEBUG(IPW_DL_xxxx, ...) whenever you want + * to send output to that classification. + * + * To add your debug level to the list of levels seen when you perform + * + * % cat /proc/net/ipw/debug_level + * + * you simply need to add your entry to the ipw_debug_levels array. + * + * If you do not see debug_level in /proc/net/ipw then you do not have + * CONFIG_IPW_DEBUG defined in your kernel configuration + * + */ + +#define IPW_DL_ERROR (1<<0) +#define IPW_DL_WARNING (1<<1) +#define IPW_DL_INFO (1<<2) +#define IPW_DL_WX (1<<3) +#define IPW_DL_HOST_COMMAND (1<<5) +#define IPW_DL_STATE (1<<6) + +#define IPW_DL_NOTIF (1<<10) +#define IPW_DL_SCAN (1<<11) +#define IPW_DL_ASSOC (1<<12) +#define IPW_DL_DROP (1<<13) +#define IPW_DL_IOCTL (1<<14) + +#define IPW_DL_MANAGE (1<<15) +#define IPW_DL_FW (1<<16) +#define IPW_DL_RF_KILL (1<<17) +#define IPW_DL_FW_ERRORS (1<<18) + +#define IPW_DL_LED (1<<19) + + +#define IPW_DL_ORD (1<<20) + +#define IPW_DL_FRAG (1<<21) +#define IPW_DL_WEP (1<<22) +#define IPW_DL_TX (1<<23) +#define IPW_DL_RX (1<<24) +#define IPW_DL_ISR (1<<25) +#define IPW_DL_FW_INFO (1<<26) +#define IPW_DL_IO (1<<27) +#define IPW_DL_TRACE (1<<28) + +#define IPW_DL_STATS (1<<29) +#define IPW_DL_MERGE (1<<30) +#define IPW_DL_QOS (1<<31) + +#define IPW_ERROR(f, a...) printk(KERN_ERR DRV_NAME ": " f, ## a) +#define IPW_WARNING(f, a...) printk(KERN_WARNING DRV_NAME ": " f, ## a) +#define IPW_DEBUG_INFO(f, a...) IPW_DEBUG(IPW_DL_INFO, f, ## a) + +#define IPW_DEBUG_WX(f, a...) IPW_DEBUG(IPW_DL_WX, f, ## a) +#define IPW_DEBUG_SCAN(f, a...) IPW_DEBUG(IPW_DL_SCAN, f, ## a) +#define IPW_DEBUG_STATUS(f, a...) IPW_DEBUG(IPW_DL_STATUS, f, ## a) +#define IPW_DEBUG_TRACE(f, a...) IPW_DEBUG(IPW_DL_TRACE, f, ## a) +#define IPW_DEBUG_RX(f, a...) IPW_DEBUG(IPW_DL_RX, f, ## a) +#define IPW_DEBUG_TX(f, a...) IPW_DEBUG(IPW_DL_TX, f, ## a) +#define IPW_DEBUG_ISR(f, a...) IPW_DEBUG(IPW_DL_ISR, f, ## a) +#define IPW_DEBUG_MANAGEMENT(f, a...) IPW_DEBUG(IPW_DL_MANAGE, f, ## a) +#define IPW_DEBUG_LED(f, a...) IPW_DEBUG(IPW_DL_LED, f, ## a) +#define IPW_DEBUG_WEP(f, a...) IPW_DEBUG(IPW_DL_WEP, f, ## a) +#define IPW_DEBUG_HC(f, a...) IPW_DEBUG(IPW_DL_HOST_COMMAND, f, ## a) +#define IPW_DEBUG_FRAG(f, a...) IPW_DEBUG(IPW_DL_FRAG, f, ## a) +#define IPW_DEBUG_FW(f, a...) IPW_DEBUG(IPW_DL_FW, f, ## a) +#define IPW_DEBUG_RF_KILL(f, a...) IPW_DEBUG(IPW_DL_RF_KILL, f, ## a) +#define IPW_DEBUG_DROP(f, a...) IPW_DEBUG(IPW_DL_DROP, f, ## a) +#define IPW_DEBUG_IO(f, a...) IPW_DEBUG(IPW_DL_IO, f, ## a) +#define IPW_DEBUG_ORD(f, a...) IPW_DEBUG(IPW_DL_ORD, f, ## a) +#define IPW_DEBUG_FW_INFO(f, a...) IPW_DEBUG(IPW_DL_FW_INFO, f, ## a) +#define IPW_DEBUG_NOTIF(f, a...) IPW_DEBUG(IPW_DL_NOTIF, f, ## a) +#define IPW_DEBUG_STATE(f, a...) IPW_DEBUG(IPW_DL_STATE | IPW_DL_ASSOC | IPW_DL_INFO, f, ## a) +#define IPW_DEBUG_ASSOC(f, a...) IPW_DEBUG(IPW_DL_ASSOC | IPW_DL_INFO, f, ## a) +#define IPW_DEBUG_STATS(f, a...) IPW_DEBUG(IPW_DL_STATS, f, ## a) +#define IPW_DEBUG_MERGE(f, a...) IPW_DEBUG(IPW_DL_MERGE, f, ## a) +#define IPW_DEBUG_QOS(f, a...) IPW_DEBUG(IPW_DL_QOS, f, ## a) + +#include + +/* +* Register bit definitions +*/ + +/* Dino control registers bits */ + +#define DINO_ENABLE_SYSTEM 0x80 +#define DINO_ENABLE_CS 0x40 +#define DINO_RXFIFO_DATA 0x01 +#define DINO_CONTROL_REG 0x00200000 + +#define IPW_INTA_RW 0x00000008 +#define IPW_INTA_MASK_R 0x0000000C +#define IPW_INDIRECT_ADDR 0x00000010 +#define IPW_INDIRECT_DATA 0x00000014 +#define IPW_AUTOINC_ADDR 0x00000018 +#define IPW_AUTOINC_DATA 0x0000001C +#define IPW_RESET_REG 0x00000020 +#define IPW_GP_CNTRL_RW 0x00000024 + +#define IPW_READ_INT_REGISTER 0xFF4 + +#define IPW_GP_CNTRL_BIT_INIT_DONE 0x00000004 + +#define IPW_REGISTER_DOMAIN1_END 0x00001000 +#define IPW_SRAM_READ_INT_REGISTER 0x00000ff4 + +#define IPW_SHARED_LOWER_BOUND 0x00000200 +#define IPW_INTERRUPT_AREA_LOWER_BOUND 0x00000f80 + +#define IPW_NIC_SRAM_LOWER_BOUND 0x00000000 +#define IPW_NIC_SRAM_UPPER_BOUND 0x00030000 + +#define IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER (1 << 29) +#define IPW_GP_CNTRL_BIT_CLOCK_READY 0x00000001 +#define IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY 0x00000002 + +/* + * RESET Register Bit Indexes + */ +#define CBD_RESET_REG_PRINCETON_RESET (1<<0) +#define IPW_START_STANDBY (1<<2) +#define IPW_ACTIVITY_LED (1<<4) +#define IPW_ASSOCIATED_LED (1<<5) +#define IPW_OFDM_LED (1<<6) +#define IPW_RESET_REG_SW_RESET (1<<7) +#define IPW_RESET_REG_MASTER_DISABLED (1<<8) +#define IPW_RESET_REG_STOP_MASTER (1<<9) +#define IPW_GATE_ODMA (1<<25) +#define IPW_GATE_IDMA (1<<26) +#define IPW_ARC_KESHET_CONFIG (1<<27) +#define IPW_GATE_ADMA (1<<29) + +#define IPW_CSR_CIS_UPPER_BOUND 0x00000200 +#define IPW_DOMAIN_0_END 0x1000 +#define CLX_MEM_BAR_SIZE 0x1000 + +#define IPW_BASEBAND_CONTROL_STATUS 0X00200000 +#define IPW_BASEBAND_TX_FIFO_WRITE 0X00200004 +#define IPW_BASEBAND_RX_FIFO_READ 0X00200004 +#define IPW_BASEBAND_CONTROL_STORE 0X00200010 + +#define IPW_INTERNAL_CMD_EVENT 0X00300004 +#define IPW_BASEBAND_POWER_DOWN 0x00000001 + +#define IPW_MEM_HALT_AND_RESET 0x003000e0 + +/* defgroup bits_halt_reset MEM_HALT_AND_RESET register bits */ +#define IPW_BIT_HALT_RESET_ON 0x80000000 +#define IPW_BIT_HALT_RESET_OFF 0x00000000 + +#define CB_LAST_VALID 0x20000000 +#define CB_INT_ENABLED 0x40000000 +#define CB_VALID 0x80000000 +#define CB_SRC_LE 0x08000000 +#define CB_DEST_LE 0x04000000 +#define CB_SRC_AUTOINC 0x00800000 +#define CB_SRC_IO_GATED 0x00400000 +#define CB_DEST_AUTOINC 0x00080000 +#define CB_SRC_SIZE_LONG 0x00200000 +#define CB_DEST_SIZE_LONG 0x00020000 + + +/* DMA DEFINES */ + +#define DMA_CONTROL_SMALL_CB_CONST_VALUE 0x00540000 +#define DMA_CB_STOP_AND_ABORT 0x00000C00 +#define DMA_CB_START 0x00000100 + + +#define IPW_SHARED_SRAM_SIZE 0x00030000 +#define IPW_SHARED_SRAM_DMA_CONTROL 0x00027000 +#define CB_MAX_LENGTH 0x1FFF + +#define IPW_HOST_EEPROM_DATA_SRAM_SIZE 0xA18 +#define IPW_EEPROM_IMAGE_SIZE 0x100 + + +/* DMA defs */ +#define IPW_DMA_I_CURRENT_CB 0x003000D0 +#define IPW_DMA_O_CURRENT_CB 0x003000D4 +#define IPW_DMA_I_DMA_CONTROL 0x003000A4 +#define IPW_DMA_I_CB_BASE 0x003000A0 + +#define IPW_TX_CMD_QUEUE_BD_BASE 0x00000200 +#define IPW_TX_CMD_QUEUE_BD_SIZE 0x00000204 +#define IPW_TX_QUEUE_0_BD_BASE 0x00000208 +#define IPW_TX_QUEUE_0_BD_SIZE (0x0000020C) +#define IPW_TX_QUEUE_1_BD_BASE 0x00000210 +#define IPW_TX_QUEUE_1_BD_SIZE 0x00000214 +#define IPW_TX_QUEUE_2_BD_BASE 0x00000218 +#define IPW_TX_QUEUE_2_BD_SIZE (0x0000021C) +#define IPW_TX_QUEUE_3_BD_BASE 0x00000220 +#define IPW_TX_QUEUE_3_BD_SIZE 0x00000224 +#define IPW_RX_BD_BASE 0x00000240 +#define IPW_RX_BD_SIZE 0x00000244 +#define IPW_RFDS_TABLE_LOWER 0x00000500 + +#define IPW_TX_CMD_QUEUE_READ_INDEX 0x00000280 +#define IPW_TX_QUEUE_0_READ_INDEX 0x00000284 +#define IPW_TX_QUEUE_1_READ_INDEX 0x00000288 +#define IPW_TX_QUEUE_2_READ_INDEX (0x0000028C) +#define IPW_TX_QUEUE_3_READ_INDEX 0x00000290 +#define IPW_RX_READ_INDEX (0x000002A0) + +#define IPW_TX_CMD_QUEUE_WRITE_INDEX (0x00000F80) +#define IPW_TX_QUEUE_0_WRITE_INDEX (0x00000F84) +#define IPW_TX_QUEUE_1_WRITE_INDEX (0x00000F88) +#define IPW_TX_QUEUE_2_WRITE_INDEX (0x00000F8C) +#define IPW_TX_QUEUE_3_WRITE_INDEX (0x00000F90) +#define IPW_RX_WRITE_INDEX (0x00000FA0) + +/* + * EEPROM Related Definitions + */ + +#define IPW_EEPROM_DATA_SRAM_ADDRESS (IPW_SHARED_LOWER_BOUND + 0x814) +#define IPW_EEPROM_DATA_SRAM_SIZE (IPW_SHARED_LOWER_BOUND + 0x818) +#define IPW_EEPROM_LOAD_DISABLE (IPW_SHARED_LOWER_BOUND + 0x81C) +#define IPW_EEPROM_DATA (IPW_SHARED_LOWER_BOUND + 0x820) +#define IPW_EEPROM_UPPER_ADDRESS (IPW_SHARED_LOWER_BOUND + 0x9E0) + +#define IPW_STATION_TABLE_LOWER (IPW_SHARED_LOWER_BOUND + 0xA0C) +#define IPW_STATION_TABLE_UPPER (IPW_SHARED_LOWER_BOUND + 0xB0C) +#define IPW_REQUEST_ATIM (IPW_SHARED_LOWER_BOUND + 0xB0C) +#define IPW_ATIM_SENT (IPW_SHARED_LOWER_BOUND + 0xB10) +#define IPW_WHO_IS_AWAKE (IPW_SHARED_LOWER_BOUND + 0xB14) +#define IPW_DURING_ATIM_WINDOW (IPW_SHARED_LOWER_BOUND + 0xB18) + + +#define MSB 1 +#define LSB 0 +#define WORD_TO_BYTE(_word) ((_word) * sizeof(u16)) + +#define GET_EEPROM_ADDR(_wordoffset,_byteoffset) \ + ( WORD_TO_BYTE(_wordoffset) + (_byteoffset) ) + +/* EEPROM access by BYTE */ +#define EEPROM_PME_CAPABILITY (GET_EEPROM_ADDR(0x09,MSB)) /* 1 byte */ +#define EEPROM_MAC_ADDRESS (GET_EEPROM_ADDR(0x21,LSB)) /* 6 byte */ +#define EEPROM_VERSION (GET_EEPROM_ADDR(0x24,MSB)) /* 1 byte */ +#define EEPROM_NIC_TYPE (GET_EEPROM_ADDR(0x25,LSB)) /* 1 byte */ +#define EEPROM_SKU_CAPABILITY (GET_EEPROM_ADDR(0x25,MSB)) /* 1 byte */ +#define EEPROM_COUNTRY_CODE (GET_EEPROM_ADDR(0x26,LSB)) /* 3 bytes */ +#define EEPROM_IBSS_CHANNELS_BG (GET_EEPROM_ADDR(0x28,LSB)) /* 2 bytes */ +#define EEPROM_IBSS_CHANNELS_A (GET_EEPROM_ADDR(0x29,MSB)) /* 5 bytes */ +#define EEPROM_BSS_CHANNELS_BG (GET_EEPROM_ADDR(0x2c,LSB)) /* 2 bytes */ +#define EEPROM_HW_VERSION (GET_EEPROM_ADDR(0x72,LSB)) /* 2 bytes */ + +/* NIC type as found in the one byte EEPROM_NIC_TYPE offset*/ +#define EEPROM_NIC_TYPE_0 0 +#define EEPROM_NIC_TYPE_1 1 +#define EEPROM_NIC_TYPE_2 2 +#define EEPROM_NIC_TYPE_3 3 +#define EEPROM_NIC_TYPE_4 4 + +#define FW_MEM_REG_LOWER_BOUND 0x00300000 +#define FW_MEM_REG_EEPROM_ACCESS (FW_MEM_REG_LOWER_BOUND + 0x40) +#define IPW_EVENT_REG (FW_MEM_REG_LOWER_BOUND + 0x04) +#define EEPROM_BIT_SK (1<<0) +#define EEPROM_BIT_CS (1<<1) +#define EEPROM_BIT_DI (1<<2) +#define EEPROM_BIT_DO (1<<4) + +#define EEPROM_CMD_READ 0x2 + +/* Defines a single bit in a by bit number (0-31) */ + +/* Interrupts masks */ +#define IPW_INTA_NONE 0x00000000 + +#define IPW_INTA_BIT_RX_TRANSFER 0x00000002 +#define IPW_INTA_BIT_STATUS_CHANGE 0x00000010 +#define IPW_INTA_BIT_BEACON_PERIOD_EXPIRED 0x00000020 + +//Inta Bits for CF +#define IPW_INTA_BIT_TX_CMD_QUEUE 0x00000800 +#define IPW_INTA_BIT_TX_QUEUE_1 0x00001000 +#define IPW_INTA_BIT_TX_QUEUE_2 0x00002000 +#define IPW_INTA_BIT_TX_QUEUE_3 0x00004000 +#define IPW_INTA_BIT_TX_QUEUE_4 0x00008000 + +#define IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE 0x00010000 + +#define IPW_INTA_BIT_PREPARE_FOR_POWER_DOWN 0x00100000 +#define IPW_INTA_BIT_POWER_DOWN 0x00200000 + +#define IPW_INTA_BIT_FW_INITIALIZATION_DONE 0x01000000 +#define IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE 0x02000000 +#define IPW_INTA_BIT_RF_KILL_DONE 0x04000000 +#define IPW_INTA_BIT_FATAL_ERROR 0x40000000 +#define IPW_INTA_BIT_PARITY_ERROR 0x80000000 + +/* Interrupts enabled at init time. */ +#define IPW_INTA_MASK_ALL \ + (IPW_INTA_BIT_TX_QUEUE_1 | \ + IPW_INTA_BIT_TX_QUEUE_2 | \ + IPW_INTA_BIT_TX_QUEUE_3 | \ + IPW_INTA_BIT_TX_QUEUE_4 | \ + IPW_INTA_BIT_TX_CMD_QUEUE | \ + IPW_INTA_BIT_RX_TRANSFER | \ + IPW_INTA_BIT_FATAL_ERROR | \ + IPW_INTA_BIT_PARITY_ERROR | \ + IPW_INTA_BIT_STATUS_CHANGE | \ + IPW_INTA_BIT_FW_INITIALIZATION_DONE | \ + IPW_INTA_BIT_BEACON_PERIOD_EXPIRED | \ + IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE | \ + IPW_INTA_BIT_PREPARE_FOR_POWER_DOWN | \ + IPW_INTA_BIT_POWER_DOWN | \ + IPW_INTA_BIT_RF_KILL_DONE ) + + +/* FW event log definitions */ +#define EVENT_ELEM_SIZE (3 * sizeof(u32)) +#define EVENT_START_OFFSET (1 * sizeof(u32) + 2 * sizeof(u16)) + +/* FW error log definitions */ +#define ERROR_ELEM_SIZE (7 * sizeof(u32)) +#define ERROR_START_OFFSET (1 * sizeof(u32)) + +/* TX power level (dbm) */ +#define IPW_TX_POWER_MIN -12 +#define IPW_TX_POWER_MAX 20 +#define IPW_TX_POWER_DEFAULT IPW_TX_POWER_MAX + +enum { + IPW_FW_ERROR_OK = 0, + IPW_FW_ERROR_FAIL, + IPW_FW_ERROR_MEMORY_UNDERFLOW, + IPW_FW_ERROR_MEMORY_OVERFLOW, + IPW_FW_ERROR_BAD_PARAM, + IPW_FW_ERROR_BAD_CHECKSUM, + IPW_FW_ERROR_NMI_INTERRUPT, + IPW_FW_ERROR_BAD_DATABASE, + IPW_FW_ERROR_ALLOC_FAIL, + IPW_FW_ERROR_DMA_UNDERRUN, + IPW_FW_ERROR_DMA_STATUS, + IPW_FW_ERROR_DINO_ERROR, + IPW_FW_ERROR_EEPROM_ERROR, + IPW_FW_ERROR_SYSASSERT, + IPW_FW_ERROR_FATAL_ERROR +}; + +#define AUTH_OPEN 0 +#define AUTH_SHARED_KEY 1 +#define AUTH_IGNORE 3 + +#define HC_ASSOCIATE 0 +#define HC_REASSOCIATE 1 +#define HC_DISASSOCIATE 2 +#define HC_IBSS_START 3 +#define HC_IBSS_RECONF 4 +#define HC_DISASSOC_QUIET 5 + +#define HC_QOS_SUPPORT_ASSOC 0x01 + +#define IPW_RATE_CAPABILITIES 1 +#define IPW_RATE_CONNECT 0 + + +/* + * Rate values and masks + */ +#define IPW_TX_RATE_1MB 0x0A +#define IPW_TX_RATE_2MB 0x14 +#define IPW_TX_RATE_5MB 0x37 +#define IPW_TX_RATE_6MB 0x0D +#define IPW_TX_RATE_9MB 0x0F +#define IPW_TX_RATE_11MB 0x6E +#define IPW_TX_RATE_12MB 0x05 +#define IPW_TX_RATE_18MB 0x07 +#define IPW_TX_RATE_24MB 0x09 +#define IPW_TX_RATE_36MB 0x0B +#define IPW_TX_RATE_48MB 0x01 +#define IPW_TX_RATE_54MB 0x03 + +#define IPW_ORD_TABLE_ID_MASK 0x0000FF00 +#define IPW_ORD_TABLE_VALUE_MASK 0x000000FF + +#define IPW_ORD_TABLE_0_MASK 0x0000F000 +#define IPW_ORD_TABLE_1_MASK 0x0000F100 +#define IPW_ORD_TABLE_2_MASK 0x0000F200 +#define IPW_ORD_TABLE_3_MASK 0x0000F300 +#define IPW_ORD_TABLE_4_MASK 0x0000F400 +#define IPW_ORD_TABLE_5_MASK 0x0000F500 +#define IPW_ORD_TABLE_6_MASK 0x0000F600 +#define IPW_ORD_TABLE_7_MASK 0x0000F700 + +/* + * Table 0 Entries (all entries are 32 bits) + */ +enum { + IPW_ORD_STAT_TX_CURR_RATE = IPW_ORD_TABLE_0_MASK + 1, + IPW_ORD_STAT_FRAG_TRESHOLD, + IPW_ORD_STAT_RTS_THRESHOLD, + IPW_ORD_STAT_TX_HOST_REQUESTS, + IPW_ORD_STAT_TX_HOST_COMPLETE, + IPW_ORD_STAT_TX_DIR_DATA, + IPW_ORD_STAT_TX_DIR_DATA_B_1, + IPW_ORD_STAT_TX_DIR_DATA_B_2, + IPW_ORD_STAT_TX_DIR_DATA_B_5_5, + IPW_ORD_STAT_TX_DIR_DATA_B_11, + /* Hole */ + + + + + + + + IPW_ORD_STAT_TX_DIR_DATA_G_1 = IPW_ORD_TABLE_0_MASK + 19, + IPW_ORD_STAT_TX_DIR_DATA_G_2, + IPW_ORD_STAT_TX_DIR_DATA_G_5_5, + IPW_ORD_STAT_TX_DIR_DATA_G_6, + IPW_ORD_STAT_TX_DIR_DATA_G_9, + IPW_ORD_STAT_TX_DIR_DATA_G_11, + IPW_ORD_STAT_TX_DIR_DATA_G_12, + IPW_ORD_STAT_TX_DIR_DATA_G_18, + IPW_ORD_STAT_TX_DIR_DATA_G_24, + IPW_ORD_STAT_TX_DIR_DATA_G_36, + IPW_ORD_STAT_TX_DIR_DATA_G_48, + IPW_ORD_STAT_TX_DIR_DATA_G_54, + IPW_ORD_STAT_TX_NON_DIR_DATA, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_1, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_2, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_5_5, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_11, + /* Hole */ + + + + + + + + IPW_ORD_STAT_TX_NON_DIR_DATA_G_1 = IPW_ORD_TABLE_0_MASK + 44, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_2, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_5_5, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_6, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_9, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_11, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_12, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_18, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_24, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_36, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_48, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_54, + IPW_ORD_STAT_TX_RETRY, + IPW_ORD_STAT_TX_FAILURE, + IPW_ORD_STAT_RX_ERR_CRC, + IPW_ORD_STAT_RX_ERR_ICV, + IPW_ORD_STAT_RX_NO_BUFFER, + IPW_ORD_STAT_FULL_SCANS, + IPW_ORD_STAT_PARTIAL_SCANS, + IPW_ORD_STAT_TGH_ABORTED_SCANS, + IPW_ORD_STAT_TX_TOTAL_BYTES, + IPW_ORD_STAT_CURR_RSSI_RAW, + IPW_ORD_STAT_RX_BEACON, + IPW_ORD_STAT_MISSED_BEACONS, + IPW_ORD_TABLE_0_LAST +}; + +#define IPW_RSSI_TO_DBM 112 + +/* Table 1 Entries + */ +enum { + IPW_ORD_TABLE_1_LAST = IPW_ORD_TABLE_1_MASK | 1, +}; + +/* + * Table 2 Entries + * + * FW_VERSION: 16 byte string + * FW_DATE: 16 byte string (only 14 bytes used) + * UCODE_VERSION: 4 byte version code + * UCODE_DATE: 5 bytes code code + * ADDAPTER_MAC: 6 byte MAC address + * RTC: 4 byte clock + */ +enum { + IPW_ORD_STAT_FW_VERSION = IPW_ORD_TABLE_2_MASK | 1, + IPW_ORD_STAT_FW_DATE, + IPW_ORD_STAT_UCODE_VERSION, + IPW_ORD_STAT_UCODE_DATE, + IPW_ORD_STAT_ADAPTER_MAC, + IPW_ORD_STAT_RTC, + IPW_ORD_TABLE_2_LAST +}; + +/* Table 3 */ +enum { + IPW_ORD_STAT_TX_PACKET = IPW_ORD_TABLE_3_MASK | 0, + IPW_ORD_STAT_TX_PACKET_FAILURE, + IPW_ORD_STAT_TX_PACKET_SUCCESS, + IPW_ORD_STAT_TX_PACKET_ABORTED, + IPW_ORD_TABLE_3_LAST +}; + +/* Table 4 */ +enum { + IPW_ORD_TABLE_4_LAST = IPW_ORD_TABLE_4_MASK +}; + +/* Table 5 */ +enum { + IPW_ORD_STAT_AVAILABLE_AP_COUNT = IPW_ORD_TABLE_5_MASK, + IPW_ORD_STAT_AP_ASSNS, + IPW_ORD_STAT_ROAM, + IPW_ORD_STAT_ROAM_CAUSE_MISSED_BEACONS, + IPW_ORD_STAT_ROAM_CAUSE_UNASSOC, + IPW_ORD_STAT_ROAM_CAUSE_RSSI, + IPW_ORD_STAT_ROAM_CAUSE_LINK_QUALITY, + IPW_ORD_STAT_ROAM_CAUSE_AP_LOAD_BALANCE, + IPW_ORD_STAT_ROAM_CAUSE_AP_NO_TX, + IPW_ORD_STAT_LINK_UP, + IPW_ORD_STAT_LINK_DOWN, + IPW_ORD_ANTENNA_DIVERSITY, + IPW_ORD_CURR_FREQ, + IPW_ORD_TABLE_5_LAST +}; + +/* Table 6 */ +enum { + IPW_ORD_COUNTRY_CODE = IPW_ORD_TABLE_6_MASK, + IPW_ORD_CURR_BSSID, + IPW_ORD_CURR_SSID, + IPW_ORD_TABLE_6_LAST +}; + +/* Table 7 */ +enum { + IPW_ORD_STAT_PERCENT_MISSED_BEACONS = IPW_ORD_TABLE_7_MASK, + IPW_ORD_STAT_PERCENT_TX_RETRIES, + IPW_ORD_STAT_PERCENT_LINK_QUALITY, + IPW_ORD_STAT_CURR_RSSI_DBM, + IPW_ORD_TABLE_7_LAST +}; + +#define IPWSTATUS_ERROR_LOG (IPW_SHARED_LOWER_BOUND + 0x410) +#define IPW_EVENT_LOG (IPW_SHARED_LOWER_BOUND + 0x414) +#define IPW_ORDINALS_TABLE_LOWER (IPW_SHARED_LOWER_BOUND + 0x500) +#define IPW_ORDINALS_TABLE_0 (IPW_SHARED_LOWER_BOUND + 0x180) +#define IPW_ORDINALS_TABLE_1 (IPW_SHARED_LOWER_BOUND + 0x184) +#define IPW_ORDINALS_TABLE_2 (IPW_SHARED_LOWER_BOUND + 0x188) +#define IPW_MEM_FIXED_OVERRIDE (IPW_SHARED_LOWER_BOUND + 0x41C) + +struct ipw_fixed_rate { + u16 tx_rates; + u16 reserved; +} __attribute__ ((packed)); + +#define IPW_INDIRECT_ADDR_MASK (~0x3ul) + +struct host_cmd { + u8 cmd; + u8 len; + u16 reserved; + u32 param[TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH]; +} __attribute__ ((packed)); + +#define CFG_BT_COEXISTENCE_MIN 0x00 +#define CFG_BT_COEXISTENCE_DEFER 0x02 +#define CFG_BT_COEXISTENCE_KILL 0x04 +#define CFG_BT_COEXISTENCE_WME_OVER_BT 0x08 +#define CFG_BT_COEXISTENCE_OOB 0x10 +#define CFG_BT_COEXISTENCE_MAX 0xFF +#define CFG_BT_COEXISTENCE_DEF 0x80 /* read Bt from EEPROM*/ + +#define CFG_CTS_TO_ITSELF_ENABLED_MIN 0x0 +#define CFG_CTS_TO_ITSELF_ENABLED_MAX 0x1 +#define CFG_CTS_TO_ITSELF_ENABLED_DEF CFG_CTS_TO_ITSELF_ENABLED_MIN + +#define CFG_SYS_ANTENNA_BOTH 0x000 +#define CFG_SYS_ANTENNA_A 0x001 +#define CFG_SYS_ANTENNA_B 0x003 + +/* + * The definitions below were lifted off the ipw2100 driver, which only + * supports 'b' mode, so I'm sure these are not exactly correct. + * + * Somebody fix these!! + */ +#define REG_MIN_CHANNEL 0 +#define REG_MAX_CHANNEL 14 + +#define REG_CHANNEL_MASK 0x00003FFF +#define IPW_IBSS_11B_DEFAULT_MASK 0x87ff + +#define IPW_MAX_CONFIG_RETRIES 10 + +static inline u32 frame_hdr_len(struct ieee80211_hdr *hdr) +{ + u32 retval; + u16 fc; + + retval = sizeof(struct ieee80211_hdr); + fc = le16_to_cpu(hdr->frame_ctl); + + /* + * Function ToDS FromDS + * IBSS 0 0 + * To AP 1 0 + * From AP 0 1 + * WDS (bridge) 1 1 + * + * Only WDS frames use Address4 among them. --YZ + */ + if (!(fc & IEEE80211_FCTL_TODS) || !(fc & IEEE80211_FCTL_FROMDS)) + retval -= ETH_ALEN; + + return retval; +} + +#endif /* __ipw2200_h__ */