| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jiri Slaby | 1837 | 40.70% | 2 | 1.71% |
| Nick Kossifidis | 1178 | 26.10% | 39 | 33.33% |
| Pavel Roskin | 622 | 13.78% | 8 | 6.84% |
| Felix Fietkau | 247 | 5.47% | 14 | 11.97% |
| Bruno Randolf | 233 | 5.16% | 23 | 19.66% |
| Sergey Ryazanov | 127 | 2.81% | 3 | 2.56% |
| Bob Copeland | 81 | 1.79% | 4 | 3.42% |
| Luis R. Rodriguez | 69 | 1.53% | 6 | 5.13% |
| Joe Perches | 32 | 0.71% | 2 | 1.71% |
| Lukáš Turek | 23 | 0.51% | 2 | 1.71% |
| Tobias Doerffel | 18 | 0.40% | 1 | 0.85% |
| Johannes Berg | 15 | 0.33% | 4 | 3.42% |
| Alina Friedrichsen | 12 | 0.27% | 1 | 0.85% |
| Mathy Vanhoef | 5 | 0.11% | 1 | 0.85% |
| Simon Wunderlich | 3 | 0.07% | 1 | 0.85% |
| Chun-Yeow Yeoh | 3 | 0.07% | 1 | 0.85% |
| Michal Kazior | 3 | 0.07% | 1 | 0.85% |
| Benoit Papillault | 2 | 0.04% | 1 | 0.85% |
| John W. Linville | 1 | 0.02% | 1 | 0.85% |
| Viresh Kumar | 1 | 0.02% | 1 | 0.85% |
| Rusty Russell | 1 | 0.02% | 1 | 0.85% |
| Total | 4513 | 117 |
/* * Copyright (c) 2004-2007 Reyk Floeter <reyk@openbsd.org> * Copyright (c) 2006-2007 Nick Kossifidis <mickflemm@gmail.com> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _ATH5K_H #define _ATH5K_H /* TODO: Clean up channel debugging (doesn't work anyway) and start * working on reg. control code using all available eeprom information * (rev. engineering needed) */ #define CHAN_DEBUG 0 #include <linux/io.h> #include <linux/interrupt.h> #include <linux/types.h> #include <linux/average.h> #include <linux/leds.h> #include <net/mac80211.h> #include <net/cfg80211.h> /* RX/TX descriptor hw structs * TODO: Driver part should only see sw structs */ #include "desc.h" /* EEPROM structs/offsets * TODO: Make a more generic struct (eg. add more stuff to ath5k_capabilities) * and clean up common bits, then introduce set/get functions in eeprom.c */ #include "eeprom.h" #include "debug.h" #include "../ath.h" #include "ani.h" /* PCI IDs */ #define PCI_DEVICE_ID_ATHEROS_AR5210 0x0007 /* AR5210 */ #define PCI_DEVICE_ID_ATHEROS_AR5311 0x0011 /* AR5311 */ #define PCI_DEVICE_ID_ATHEROS_AR5211 0x0012 /* AR5211 */ #define PCI_DEVICE_ID_ATHEROS_AR5212 0x0013 /* AR5212 */ #define PCI_DEVICE_ID_3COM_3CRDAG675 0x0013 /* 3CRDAG675 (Atheros AR5212) */ #define PCI_DEVICE_ID_3COM_2_3CRPAG175 0x0013 /* 3CRPAG175 (Atheros AR5212) */ #define PCI_DEVICE_ID_ATHEROS_AR5210_AP 0x0207 /* AR5210 (Early) */ #define PCI_DEVICE_ID_ATHEROS_AR5212_IBM 0x1014 /* AR5212 (IBM MiniPCI) */ #define PCI_DEVICE_ID_ATHEROS_AR5210_DEFAULT 0x1107 /* AR5210 (no eeprom) */ #define PCI_DEVICE_ID_ATHEROS_AR5212_DEFAULT 0x1113 /* AR5212 (no eeprom) */ #define PCI_DEVICE_ID_ATHEROS_AR5211_DEFAULT 0x1112 /* AR5211 (no eeprom) */ #define PCI_DEVICE_ID_ATHEROS_AR5212_FPGA 0xf013 /* AR5212 (emulation board) */ #define PCI_DEVICE_ID_ATHEROS_AR5211_LEGACY 0xff12 /* AR5211 (emulation board) */ #define PCI_DEVICE_ID_ATHEROS_AR5211_FPGA11B 0xf11b /* AR5211 (emulation board) */ #define PCI_DEVICE_ID_ATHEROS_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */ #define PCI_DEVICE_ID_ATHEROS_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */ #define PCI_DEVICE_ID_ATHEROS_AR5312_REV8 0x0058 /* AR5312 WMAC (AP43-030) */ #define PCI_DEVICE_ID_ATHEROS_AR5212_0014 0x0014 /* AR5212 compatible */ #define PCI_DEVICE_ID_ATHEROS_AR5212_0015 0x0015 /* AR5212 compatible */ #define PCI_DEVICE_ID_ATHEROS_AR5212_0016 0x0016 /* AR5212 compatible */ #define PCI_DEVICE_ID_ATHEROS_AR5212_0017 0x0017 /* AR5212 compatible */ #define PCI_DEVICE_ID_ATHEROS_AR5212_0018 0x0018 /* AR5212 compatible */ #define PCI_DEVICE_ID_ATHEROS_AR5212_0019 0x0019 /* AR5212 compatible */ #define PCI_DEVICE_ID_ATHEROS_AR2413 0x001a /* AR2413 (Griffin-lite) */ #define PCI_DEVICE_ID_ATHEROS_AR5413 0x001b /* AR5413 (Eagle) */ #define PCI_DEVICE_ID_ATHEROS_AR5424 0x001c /* AR5424 (Condor PCI-E) */ #define PCI_DEVICE_ID_ATHEROS_AR5416 0x0023 /* AR5416 */ #define PCI_DEVICE_ID_ATHEROS_AR5418 0x0024 /* AR5418 */ /****************************\ GENERIC DRIVER DEFINITIONS \****************************/ #define ATH5K_PRINTF(fmt, ...) \ pr_warn("%s: " fmt, __func__, ##__VA_ARGS__) void __printf(3, 4) _ath5k_printk(const struct ath5k_hw *ah, const char *level, const char *fmt, ...); #define ATH5K_PRINTK(_sc, _level, _fmt, ...) \ _ath5k_printk(_sc, _level, _fmt, ##__VA_ARGS__) #define ATH5K_PRINTK_LIMIT(_sc, _level, _fmt, ...) \ do { \ if (net_ratelimit()) \ ATH5K_PRINTK(_sc, _level, _fmt, ##__VA_ARGS__); \ } while (0) #define ATH5K_INFO(_sc, _fmt, ...) \ ATH5K_PRINTK(_sc, KERN_INFO, _fmt, ##__VA_ARGS__) #define ATH5K_WARN(_sc, _fmt, ...) \ ATH5K_PRINTK_LIMIT(_sc, KERN_WARNING, _fmt, ##__VA_ARGS__) #define ATH5K_ERR(_sc, _fmt, ...) \ ATH5K_PRINTK_LIMIT(_sc, KERN_ERR, _fmt, ##__VA_ARGS__) /* * AR5K REGISTER ACCESS */ /* Some macros to read/write fields */ /* First shift, then mask */ #define AR5K_REG_SM(_val, _flags) \ (((_val) << _flags##_S) & (_flags)) /* First mask, then shift */ #define AR5K_REG_MS(_val, _flags) \ (((_val) & (_flags)) >> _flags##_S) /* Some registers can hold multiple values of interest. For this * reason when we want to write to these registers we must first * retrieve the values which we do not want to clear (lets call this * old_data) and then set the register with this and our new_value: * ( old_data | new_value) */ #define AR5K_REG_WRITE_BITS(ah, _reg, _flags, _val) \ ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & ~(_flags)) | \ (((_val) << _flags##_S) & (_flags)), _reg) #define AR5K_REG_MASKED_BITS(ah, _reg, _flags, _mask) \ ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & \ (_mask)) | (_flags), _reg) #define AR5K_REG_ENABLE_BITS(ah, _reg, _flags) \ ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) | (_flags), _reg) #define AR5K_REG_DISABLE_BITS(ah, _reg, _flags) \ ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) & ~(_flags), _reg) /* Access QCU registers per queue */ #define AR5K_REG_READ_Q(ah, _reg, _queue) \ (ath5k_hw_reg_read(ah, _reg) & (1 << _queue)) \ #define AR5K_REG_WRITE_Q(ah, _reg, _queue) \ ath5k_hw_reg_write(ah, (1 << _queue), _reg) #define AR5K_Q_ENABLE_BITS(_reg, _queue) do { \ _reg |= 1 << _queue; \ } while (0) #define AR5K_Q_DISABLE_BITS(_reg, _queue) do { \ _reg &= ~(1 << _queue); \ } while (0) /* Used while writing initvals */ #define AR5K_REG_WAIT(_i) do { \ if (_i % 64) \ udelay(1); \ } while (0) /* * Some tunable values (these should be changeable by the user) * TODO: Make use of them and add more options OR use debug/configfs */ #define AR5K_TUNE_DMA_BEACON_RESP 2 #define AR5K_TUNE_SW_BEACON_RESP 10 #define AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF 0 #define AR5K_TUNE_MIN_TX_FIFO_THRES 1 #define AR5K_TUNE_MAX_TX_FIFO_THRES ((IEEE80211_MAX_FRAME_LEN / 64) + 1) #define AR5K_TUNE_REGISTER_TIMEOUT 20000 /* Register for RSSI threshold has a mask of 0xff, so 255 seems to * be the max value. */ #define AR5K_TUNE_RSSI_THRES 129 /* This must be set when setting the RSSI threshold otherwise it can * prevent a reset. If AR5K_RSSI_THR is read after writing to it * the BMISS_THRES will be seen as 0, seems hardware doesn't keep * track of it. Max value depends on hardware. For AR5210 this is just 7. * For AR5211+ this seems to be up to 255. */ #define AR5K_TUNE_BMISS_THRES 7 #define AR5K_TUNE_REGISTER_DWELL_TIME 20000 #define AR5K_TUNE_BEACON_INTERVAL 100 #define AR5K_TUNE_AIFS 2 #define AR5K_TUNE_AIFS_11B 2 #define AR5K_TUNE_AIFS_XR 0 #define AR5K_TUNE_CWMIN 15 #define AR5K_TUNE_CWMIN_11B 31 #define AR5K_TUNE_CWMIN_XR 3 #define AR5K_TUNE_CWMAX 1023 #define AR5K_TUNE_CWMAX_11B 1023 #define AR5K_TUNE_CWMAX_XR 7 #define AR5K_TUNE_NOISE_FLOOR -72 #define AR5K_TUNE_CCA_MAX_GOOD_VALUE -95 #define AR5K_TUNE_MAX_TXPOWER 63 #define AR5K_TUNE_DEFAULT_TXPOWER 25 #define AR5K_TUNE_TPC_TXPOWER false #define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 60000 /* 60 sec */ #define ATH5K_TUNE_CALIBRATION_INTERVAL_SHORT 10000 /* 10 sec */ #define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */ #define ATH5K_TX_COMPLETE_POLL_INT 3000 /* 3 sec */ #define AR5K_INIT_CARR_SENSE_EN 1 /*Swap RX/TX Descriptor for big endian archs*/ #if defined(__BIG_ENDIAN) #define AR5K_INIT_CFG ( \ AR5K_CFG_SWTD | AR5K_CFG_SWRD \ ) #else #define AR5K_INIT_CFG 0x00000000 #endif /* Initial values */ #define AR5K_INIT_CYCRSSI_THR1 2 /* Tx retry limit defaults from standard */ #define AR5K_INIT_RETRY_SHORT 7 #define AR5K_INIT_RETRY_LONG 4 /* Slot time */ #define AR5K_INIT_SLOT_TIME_TURBO 6 #define AR5K_INIT_SLOT_TIME_DEFAULT 9 #define AR5K_INIT_SLOT_TIME_HALF_RATE 13 #define AR5K_INIT_SLOT_TIME_QUARTER_RATE 21 #define AR5K_INIT_SLOT_TIME_B 20 #define AR5K_SLOT_TIME_MAX 0xffff /* SIFS */ #define AR5K_INIT_SIFS_TURBO 6 #define AR5K_INIT_SIFS_DEFAULT_BG 10 #define AR5K_INIT_SIFS_DEFAULT_A 16 #define AR5K_INIT_SIFS_HALF_RATE 32 #define AR5K_INIT_SIFS_QUARTER_RATE 64 /* Used to calculate tx time for non 5/10/40MHz * operation */ /* It's preamble time + signal time (16 + 4) */ #define AR5K_INIT_OFDM_PREAMPLE_TIME 20 /* Preamble time for 40MHz (turbo) operation (min ?) */ #define AR5K_INIT_OFDM_PREAMBLE_TIME_MIN 14 #define AR5K_INIT_OFDM_SYMBOL_TIME 4 #define AR5K_INIT_OFDM_PLCP_BITS 22 /* Rx latency for 5 and 10MHz operation (max ?) */ #define AR5K_INIT_RX_LAT_MAX 63 /* Tx latencies from initvals (5212 only but no problem * because we only tweak them on 5212) */ #define AR5K_INIT_TX_LAT_A 54 #define AR5K_INIT_TX_LAT_BG 384 /* Tx latency for 40MHz (turbo) operation (min ?) */ #define AR5K_INIT_TX_LAT_MIN 32 /* Default Tx/Rx latencies (same for 5211)*/ #define AR5K_INIT_TX_LATENCY_5210 54 #define AR5K_INIT_RX_LATENCY_5210 29 /* Tx frame to Tx data start delay */ #define AR5K_INIT_TXF2TXD_START_DEFAULT 14 #define AR5K_INIT_TXF2TXD_START_DELAY_10MHZ 12 #define AR5K_INIT_TXF2TXD_START_DELAY_5MHZ 13 /* We need to increase PHY switch and agc settling time * on turbo mode */ #define AR5K_SWITCH_SETTLING 5760 #define AR5K_SWITCH_SETTLING_TURBO 7168 #define AR5K_AGC_SETTLING 28 /* 38 on 5210 but shouldn't matter */ #define AR5K_AGC_SETTLING_TURBO 37 /*****************************\ * GENERIC CHIPSET DEFINITIONS * \*****************************/ /** * enum ath5k_version - MAC Chips * @AR5K_AR5210: AR5210 (Crete) * @AR5K_AR5211: AR5211 (Oahu/Maui) * @AR5K_AR5212: AR5212 (Venice) and newer */ enum ath5k_version { AR5K_AR5210 = 0, AR5K_AR5211 = 1, AR5K_AR5212 = 2, }; /** * enum ath5k_radio - PHY Chips * @AR5K_RF5110: RF5110 (Fez) * @AR5K_RF5111: RF5111 (Sombrero) * @AR5K_RF5112: RF2112/5112(A) (Derby/Derby2) * @AR5K_RF2413: RF2413/2414 (Griffin/Griffin-Lite) * @AR5K_RF5413: RF5413/5414/5424 (Eagle/Condor) * @AR5K_RF2316: RF2315/2316 (Cobra SoC) * @AR5K_RF2317: RF2317 (Spider SoC) * @AR5K_RF2425: RF2425/2417 (Swan/Nalla) */ enum ath5k_radio { AR5K_RF5110 = 0, AR5K_RF5111 = 1, AR5K_RF5112 = 2, AR5K_RF2413 = 3, AR5K_RF5413 = 4, AR5K_RF2316 = 5, AR5K_RF2317 = 6, AR5K_RF2425 = 7, }; /* * Common silicon revision/version values */ #define AR5K_SREV_UNKNOWN 0xffff #define AR5K_SREV_AR5210 0x00 /* Crete */ #define AR5K_SREV_AR5311 0x10 /* Maui 1 */ #define AR5K_SREV_AR5311A 0x20 /* Maui 2 */ #define AR5K_SREV_AR5311B 0x30 /* Spirit */ #define AR5K_SREV_AR5211 0x40 /* Oahu */ #define AR5K_SREV_AR5212 0x50 /* Venice */ #define AR5K_SREV_AR5312_R2 0x52 /* AP31 */ #define AR5K_SREV_AR5212_V4 0x54 /* ??? */ #define AR5K_SREV_AR5213 0x55 /* ??? */ #define AR5K_SREV_AR5312_R7 0x57 /* AP30 */ #define AR5K_SREV_AR2313_R8 0x58 /* AP43 */ #define AR5K_SREV_AR5213A 0x59 /* Hainan */ #define AR5K_SREV_AR2413 0x78 /* Griffin lite */ #define AR5K_SREV_AR2414 0x70 /* Griffin */ #define AR5K_SREV_AR2315_R6 0x86 /* AP51-Light */ #define AR5K_SREV_AR2315_R7 0x87 /* AP51-Full */ #define AR5K_SREV_AR5424 0x90 /* Condor */ #define AR5K_SREV_AR2317_R1 0x90 /* AP61-Light */ #define AR5K_SREV_AR2317_R2 0x91 /* AP61-Full */ #define AR5K_SREV_AR5413 0xa4 /* Eagle lite */ #define AR5K_SREV_AR5414 0xa0 /* Eagle */ #define AR5K_SREV_AR2415 0xb0 /* Talon */ #define AR5K_SREV_AR5416 0xc0 /* PCI-E */ #define AR5K_SREV_AR5418 0xca /* PCI-E */ #define AR5K_SREV_AR2425 0xe0 /* Swan */ #define AR5K_SREV_AR2417 0xf0 /* Nala */ #define AR5K_SREV_RAD_5110 0x00 #define AR5K_SREV_RAD_5111 0x10 #define AR5K_SREV_RAD_5111A 0x15 #define AR5K_SREV_RAD_2111 0x20 #define AR5K_SREV_RAD_5112 0x30 #define AR5K_SREV_RAD_5112A 0x35 #define AR5K_SREV_RAD_5112B 0x36 #define AR5K_SREV_RAD_2112 0x40 #define AR5K_SREV_RAD_2112A 0x45 #define AR5K_SREV_RAD_2112B 0x46 #define AR5K_SREV_RAD_2413 0x50 #define AR5K_SREV_RAD_5413 0x60 #define AR5K_SREV_RAD_2316 0x70 /* Cobra SoC */ #define AR5K_SREV_RAD_2317 0x80 #define AR5K_SREV_RAD_5424 0xa0 /* Mostly same as 5413 */ #define AR5K_SREV_RAD_2425 0xa2 #define AR5K_SREV_RAD_5133 0xc0 #define AR5K_SREV_PHY_5211 0x30 #define AR5K_SREV_PHY_5212 0x41 #define AR5K_SREV_PHY_5212A 0x42 #define AR5K_SREV_PHY_5212B 0x43 #define AR5K_SREV_PHY_2413 0x45 #define AR5K_SREV_PHY_5413 0x61 #define AR5K_SREV_PHY_2425 0x70 /* TODO add support to mac80211 for vendor-specific rates and modes */ /** * DOC: Atheros XR * * Some of this information is based on Documentation from: * * http://madwifi-project.org/wiki/ChipsetFeatures/SuperAG * * Atheros' eXtended Range - range enhancing extension is a modulation scheme * that is supposed to double the link distance between an Atheros XR-enabled * client device with an Atheros XR-enabled access point. This is achieved * by increasing the receiver sensitivity up to, -105dBm, which is about 20dB * above what the 802.11 specifications demand. In addition, new (proprietary) * data rates are introduced: 3, 2, 1, 0.5 and 0.25 MBit/s. * * Please note that can you either use XR or TURBO but you cannot use both, * they are exclusive. * * Also note that we do not plan to support XR mode at least for now. You can * get a mode similar to XR by using 5MHz bwmode. */ /** * DOC: Atheros SuperAG * * In addition to XR we have another modulation scheme called TURBO mode * that is supposed to provide a throughput transmission speed up to 40Mbit/s * -60Mbit/s at a 108Mbit/s signaling rate achieved through the bonding of two * 54Mbit/s 802.11g channels. To use this feature both ends must support it. * There is also a distinction between "static" and "dynamic" turbo modes: * * - Static: is the dumb version: devices set to this mode stick to it until * the mode is turned off. * * - Dynamic: is the intelligent version, the network decides itself if it * is ok to use turbo. As soon as traffic is detected on adjacent channels * (which would get used in turbo mode), or when a non-turbo station joins * the network, turbo mode won't be used until the situation changes again. * Dynamic mode is achieved by Atheros' Adaptive Radio (AR) feature which * monitors the used radio band in order to decide whether turbo mode may * be used or not. * * This article claims Super G sticks to bonding of channels 5 and 6 for * USA: * * http://www.pcworld.com/article/id,113428-page,1/article.html * * The channel bonding seems to be driver specific though. * * In addition to TURBO modes we also have the following features for even * greater speed-up: * * - Bursting: allows multiple frames to be sent at once, rather than pausing * after each frame. Bursting is a standards-compliant feature that can be * used with any Access Point. * * - Fast frames: increases the amount of information that can be sent per * frame, also resulting in a reduction of transmission overhead. It is a * proprietary feature that needs to be supported by the Access Point. * * - Compression: data frames are compressed in real time using a Lempel Ziv * algorithm. This is done transparently. Once this feature is enabled, * compression and decompression takes place inside the chipset, without * putting additional load on the host CPU. * * As with XR we also don't plan to support SuperAG features for now. You can * get a mode similar to TURBO by using 40MHz bwmode. */ /** * enum ath5k_driver_mode - PHY operation mode * @AR5K_MODE_11A: 802.11a * @AR5K_MODE_11B: 802.11b * @AR5K_MODE_11G: 801.11g * @AR5K_MODE_MAX: Used for boundary checks * * Do not change the order here, we use these as * array indices and it also maps EEPROM structures. */ enum ath5k_driver_mode { AR5K_MODE_11A = 0, AR5K_MODE_11B = 1, AR5K_MODE_11G = 2, AR5K_MODE_MAX = 3 }; /** * enum ath5k_ant_mode - Antenna operation mode * @AR5K_ANTMODE_DEFAULT: Default antenna setup * @AR5K_ANTMODE_FIXED_A: Only antenna A is present * @AR5K_ANTMODE_FIXED_B: Only antenna B is present * @AR5K_ANTMODE_SINGLE_AP: STA locked on a single ap * @AR5K_ANTMODE_SECTOR_AP: AP with tx antenna set on tx desc * @AR5K_ANTMODE_SECTOR_STA: STA with tx antenna set on tx desc * @AR5K_ANTMODE_DEBUG: Debug mode -A -> Rx, B-> Tx- * @AR5K_ANTMODE_MAX: Used for boundary checks * * For more infos on antenna control check out phy.c */ enum ath5k_ant_mode { AR5K_ANTMODE_DEFAULT = 0, AR5K_ANTMODE_FIXED_A = 1, AR5K_ANTMODE_FIXED_B = 2, AR5K_ANTMODE_SINGLE_AP = 3, AR5K_ANTMODE_SECTOR_AP = 4, AR5K_ANTMODE_SECTOR_STA = 5, AR5K_ANTMODE_DEBUG = 6, AR5K_ANTMODE_MAX, }; /** * enum ath5k_bw_mode - Bandwidth operation mode * @AR5K_BWMODE_DEFAULT: 20MHz, default operation * @AR5K_BWMODE_5MHZ: Quarter rate * @AR5K_BWMODE_10MHZ: Half rate * @AR5K_BWMODE_40MHZ: Turbo */ enum ath5k_bw_mode { AR5K_BWMODE_DEFAULT = 0, AR5K_BWMODE_5MHZ = 1, AR5K_BWMODE_10MHZ = 2, AR5K_BWMODE_40MHZ = 3 }; /****************\ TX DEFINITIONS \****************/ /** * struct ath5k_tx_status - TX Status descriptor * @ts_seqnum: Sequence number * @ts_tstamp: Timestamp * @ts_status: Status code * @ts_final_idx: Final transmission series index * @ts_final_retry: Final retry count * @ts_rssi: RSSI for received ACK * @ts_shortretry: Short retry count * @ts_virtcol: Virtual collision count * @ts_antenna: Antenna used * * TX status descriptor gets filled by the hw * on each transmission attempt. */ struct ath5k_tx_status { u16 ts_seqnum; u16 ts_tstamp; u8 ts_status; u8 ts_final_idx; u8 ts_final_retry; s8 ts_rssi; u8 ts_shortretry; u8 ts_virtcol; u8 ts_antenna; }; #define AR5K_TXSTAT_ALTRATE 0x80 #define AR5K_TXERR_XRETRY 0x01 #define AR5K_TXERR_FILT 0x02 #define AR5K_TXERR_FIFO 0x04 /** * enum ath5k_tx_queue - Queue types used to classify tx queues. * @AR5K_TX_QUEUE_INACTIVE: q is unused -- see ath5k_hw_release_tx_queue * @AR5K_TX_QUEUE_DATA: A normal data queue * @AR5K_TX_QUEUE_BEACON: The beacon queue * @AR5K_TX_QUEUE_CAB: The after-beacon queue * @AR5K_TX_QUEUE_UAPSD: Unscheduled Automatic Power Save Delivery queue */ enum ath5k_tx_queue { AR5K_TX_QUEUE_INACTIVE = 0, AR5K_TX_QUEUE_DATA, AR5K_TX_QUEUE_BEACON, AR5K_TX_QUEUE_CAB, AR5K_TX_QUEUE_UAPSD, }; #define AR5K_NUM_TX_QUEUES 10 #define AR5K_NUM_TX_QUEUES_NOQCU 2 /** * enum ath5k_tx_queue_subtype - Queue sub-types to classify normal data queues * @AR5K_WME_AC_BK: Background traffic * @AR5K_WME_AC_BE: Best-effort (normal) traffic * @AR5K_WME_AC_VI: Video traffic * @AR5K_WME_AC_VO: Voice traffic * * These are the 4 Access Categories as defined in * WME spec. 0 is the lowest priority and 4 is the * highest. Normal data that hasn't been classified * goes to the Best Effort AC. */ enum ath5k_tx_queue_subtype { AR5K_WME_AC_BK = 0, AR5K_WME_AC_BE, AR5K_WME_AC_VI, AR5K_WME_AC_VO, }; /** * enum ath5k_tx_queue_id - Queue ID numbers as returned by the hw functions * @AR5K_TX_QUEUE_ID_NOQCU_DATA: Data queue on AR5210 (no QCU available) * @AR5K_TX_QUEUE_ID_NOQCU_BEACON: Beacon queue on AR5210 (no QCU available) * @AR5K_TX_QUEUE_ID_DATA_MIN: Data queue min index * @AR5K_TX_QUEUE_ID_DATA_MAX: Data queue max index * @AR5K_TX_QUEUE_ID_CAB: Content after beacon queue * @AR5K_TX_QUEUE_ID_BEACON: Beacon queue * @AR5K_TX_QUEUE_ID_UAPSD: Urgent Automatic Power Save Delivery, * * Each number represents a hw queue. If hw does not support hw queues * (eg 5210) all data goes in one queue. */ enum ath5k_tx_queue_id { AR5K_TX_QUEUE_ID_NOQCU_DATA = 0, AR5K_TX_QUEUE_ID_NOQCU_BEACON = 1, AR5K_TX_QUEUE_ID_DATA_MIN = 0, AR5K_TX_QUEUE_ID_DATA_MAX = 3, AR5K_TX_QUEUE_ID_UAPSD = 7, AR5K_TX_QUEUE_ID_CAB = 8, AR5K_TX_QUEUE_ID_BEACON = 9, }; /* * Flags to set hw queue's parameters... */ #define AR5K_TXQ_FLAG_TXOKINT_ENABLE 0x0001 /* Enable TXOK interrupt */ #define AR5K_TXQ_FLAG_TXERRINT_ENABLE 0x0002 /* Enable TXERR interrupt */ #define AR5K_TXQ_FLAG_TXEOLINT_ENABLE 0x0004 /* Enable TXEOL interrupt -not used- */ #define AR5K_TXQ_FLAG_TXDESCINT_ENABLE 0x0008 /* Enable TXDESC interrupt -not used- */ #define AR5K_TXQ_FLAG_TXURNINT_ENABLE 0x0010 /* Enable TXURN interrupt */ #define AR5K_TXQ_FLAG_CBRORNINT_ENABLE 0x0020 /* Enable CBRORN interrupt */ #define AR5K_TXQ_FLAG_CBRURNINT_ENABLE 0x0040 /* Enable CBRURN interrupt */ #define AR5K_TXQ_FLAG_QTRIGINT_ENABLE 0x0080 /* Enable QTRIG interrupt */ #define AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE 0x0100 /* Enable TXNOFRM interrupt */ #define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0200 /* Disable random post-backoff */ #define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0300 /* Enable ready time expiry policy (?)*/ #define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0800 /* Enable backoff while bursting */ #define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x1000 /* Disable backoff while bursting */ #define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x2000 /* Enable hw compression -not implemented-*/ /** * struct ath5k_txq - Transmit queue state * @qnum: Hardware q number * @link: Link ptr in last TX desc * @q: Transmit queue (&struct list_head) * @lock: Lock on q and link * @setup: Is the queue configured * @txq_len:Number of queued buffers * @txq_max: Max allowed num of queued buffers * @txq_poll_mark: Used to check if queue got stuck * @txq_stuck: Queue stuck counter * * One of these exists for each hardware transmit queue. * Packets sent to us from above are assigned to queues based * on their priority. Not all devices support a complete set * of hardware transmit queues. For those devices the array * sc_ac2q will map multiple priorities to fewer hardware queues * (typically all to one hardware queue). */ struct ath5k_txq { unsigned int qnum; u32 *link; struct list_head q; spinlock_t lock; bool setup; int txq_len; int txq_max; bool txq_poll_mark; unsigned int txq_stuck; }; /** * struct ath5k_txq_info - A struct to hold TX queue's parameters * @tqi_type: One of enum ath5k_tx_queue * @tqi_subtype: One of enum ath5k_tx_queue_subtype * @tqi_flags: TX queue flags (see above) * @tqi_aifs: Arbitrated Inter-frame Space * @tqi_cw_min: Minimum Contention Window * @tqi_cw_max: Maximum Contention Window * @tqi_cbr_period: Constant bit rate period * @tqi_ready_time: Time queue waits after an event when RDYTIME is enabled */ struct ath5k_txq_info { enum ath5k_tx_queue tqi_type; enum ath5k_tx_queue_subtype tqi_subtype; u16 tqi_flags; u8 tqi_aifs; u16 tqi_cw_min; u16 tqi_cw_max; u32 tqi_cbr_period; u32 tqi_cbr_overflow_limit; u32 tqi_burst_time; u32 tqi_ready_time; }; /** * enum ath5k_pkt_type - Transmit packet types * @AR5K_PKT_TYPE_NORMAL: Normal data * @AR5K_PKT_TYPE_ATIM: ATIM * @AR5K_PKT_TYPE_PSPOLL: PS-Poll * @AR5K_PKT_TYPE_BEACON: Beacon * @AR5K_PKT_TYPE_PROBE_RESP: Probe response * @AR5K_PKT_TYPE_PIFS: PIFS * Used on tx control descriptor */ enum ath5k_pkt_type { AR5K_PKT_TYPE_NORMAL = 0, AR5K_PKT_TYPE_ATIM = 1, AR5K_PKT_TYPE_PSPOLL = 2, AR5K_PKT_TYPE_BEACON = 3, AR5K_PKT_TYPE_PROBE_RESP = 4, AR5K_PKT_TYPE_PIFS = 5, }; /* * TX power and TPC settings */ #define AR5K_TXPOWER_OFDM(_r, _v) ( \ ((0 & 1) << ((_v) + 6)) | \ (((ah->ah_txpower.txp_rates_power_table[(_r)]) & 0x3f) << (_v)) \ ) #define AR5K_TXPOWER_CCK(_r, _v) ( \ (ah->ah_txpower.txp_rates_power_table[(_r)] & 0x3f) << (_v) \ ) /****************\ RX DEFINITIONS \****************/ /** * struct ath5k_rx_status - RX Status descriptor * @rs_datalen: Data length * @rs_tstamp: Timestamp * @rs_status: Status code * @rs_phyerr: PHY error mask * @rs_rssi: RSSI in 0.5dbm units * @rs_keyix: Index to the key used for decrypting * @rs_rate: Rate used to decode the frame * @rs_antenna: Antenna used to receive the frame * @rs_more: Indicates this is a frame fragment (Fast frames) */ struct ath5k_rx_status { u16 rs_datalen; u16 rs_tstamp; u8 rs_status; u8 rs_phyerr; s8 rs_rssi; u8 rs_keyix; u8 rs_rate; u8 rs_antenna; u8 rs_more; }; #define AR5K_RXERR_CRC 0x01 #define AR5K_RXERR_PHY 0x02 #define AR5K_RXERR_FIFO 0x04 #define AR5K_RXERR_DECRYPT 0x08 #define AR5K_RXERR_MIC 0x10 #define AR5K_RXKEYIX_INVALID ((u8) -1) #define AR5K_TXKEYIX_INVALID ((u32) -1) /**************************\ BEACON TIMERS DEFINITIONS \**************************/ #define AR5K_BEACON_PERIOD 0x0000ffff #define AR5K_BEACON_ENA 0x00800000 /*enable beacon xmit*/ #define AR5K_BEACON_RESET_TSF 0x01000000 /*force a TSF reset*/ /* * TSF to TU conversion: * * TSF is a 64bit value in usec (microseconds). * TU is a 32bit value and defined by IEEE802.11 (page 6) as "A measurement of * time equal to 1024 usec", so it's roughly milliseconds (usec / 1024). */ #define TSF_TO_TU(_tsf) (u32)((_tsf) >> 10) /*******************************\ GAIN OPTIMIZATION DEFINITIONS \*******************************/ /** * enum ath5k_rfgain - RF Gain optimization engine state * @AR5K_RFGAIN_INACTIVE: Engine disabled * @AR5K_RFGAIN_ACTIVE: Probe active * @AR5K_RFGAIN_READ_REQUESTED: Probe requested * @AR5K_RFGAIN_NEED_CHANGE: Gain_F needs change */ enum ath5k_rfgain { AR5K_RFGAIN_INACTIVE = 0, AR5K_RFGAIN_ACTIVE, AR5K_RFGAIN_READ_REQUESTED, AR5K_RFGAIN_NEED_CHANGE, }; /** * struct ath5k_gain - RF Gain optimization engine state data * @g_step_idx: Current step index * @g_current: Current gain * @g_target: Target gain * @g_low: Low gain boundary * @g_high: High gain boundary * @g_f_corr: Gain_F correction * @g_state: One of enum ath5k_rfgain */ struct ath5k_gain { u8 g_step_idx; u8 g_current; u8 g_target; u8 g_low; u8 g_high; u8 g_f_corr; u8 g_state; }; /********************\ COMMON DEFINITIONS \********************/ #define AR5K_SLOT_TIME_9 396 #define AR5K_SLOT_TIME_20 880 #define AR5K_SLOT_TIME_MAX 0xffff /** * struct ath5k_athchan_2ghz - 2GHz to 5GHZ map for RF5111 * @a2_flags: Channel flags (internal) * @a2_athchan: HW channel number (internal) * * This structure is used to map 2GHz channels to * 5GHz Atheros channels on 2111 frequency converter * that comes together with RF5111 * TODO: Clean up */ struct ath5k_athchan_2ghz { u32 a2_flags; u16 a2_athchan; }; /** * enum ath5k_dmasize - DMA size definitions (2^(n+2)) * @AR5K_DMASIZE_4B: 4Bytes * @AR5K_DMASIZE_8B: 8Bytes * @AR5K_DMASIZE_16B: 16Bytes * @AR5K_DMASIZE_32B: 32Bytes * @AR5K_DMASIZE_64B: 64Bytes (Default) * @AR5K_DMASIZE_128B: 128Bytes * @AR5K_DMASIZE_256B: 256Bytes * @AR5K_DMASIZE_512B: 512Bytes * * These are used to set DMA burst size on hw * * Note: Some platforms can't handle more than 4Bytes * be careful on embedded boards. */ enum ath5k_dmasize { AR5K_DMASIZE_4B = 0, AR5K_DMASIZE_8B, AR5K_DMASIZE_16B, AR5K_DMASIZE_32B, AR5K_DMASIZE_64B, AR5K_DMASIZE_128B, AR5K_DMASIZE_256B, AR5K_DMASIZE_512B }; /******************\ RATE DEFINITIONS \******************/ /** * DOC: Rate codes * * Seems the ar5xxx hardware supports up to 32 rates, indexed by 1-32. * * The rate code is used to get the RX rate or set the TX rate on the * hardware descriptors. It is also used for internal modulation control * and settings. * * This is the hardware rate map we are aware of (html unfriendly): * * Rate code Rate (Kbps) * --------- ----------- * 0x01 3000 (XR) * 0x02 1000 (XR) * 0x03 250 (XR) * 0x04 - 05 -Reserved- * 0x06 2000 (XR) * 0x07 500 (XR) * 0x08 48000 (OFDM) * 0x09 24000 (OFDM) * 0x0A 12000 (OFDM) * 0x0B 6000 (OFDM) * 0x0C 54000 (OFDM) * 0x0D 36000 (OFDM) * 0x0E 18000 (OFDM) * 0x0F 9000 (OFDM) * 0x10 - 17 -Reserved- * 0x18 11000L (CCK) * 0x19 5500L (CCK) * 0x1A 2000L (CCK) * 0x1B 1000L (CCK) * 0x1C 11000S (CCK) * 0x1D 5500S (CCK) * 0x1E 2000S (CCK) * 0x1F -Reserved- * * "S" indicates CCK rates with short preamble and "L" with long preamble. * * AR5211 has different rate codes for CCK (802.11B) rates. It only uses the * lowest 4 bits, so they are the same as above with a 0xF mask. * (0xB, 0xA, 0x9 and 0x8 for 1M, 2M, 5.5M and 11M). * We handle this in ath5k_setup_bands(). */ #define AR5K_MAX_RATES 32 /* B */ #define ATH5K_RATE_CODE_1M 0x1B #define ATH5K_RATE_CODE_2M 0x1A #define ATH5K_RATE_CODE_5_5M 0x19 #define ATH5K_RATE_CODE_11M 0x18 /* A and G */ #define ATH5K_RATE_CODE_6M 0x0B #define ATH5K_RATE_CODE_9M 0x0F #define ATH5K_RATE_CODE_12M 0x0A #define ATH5K_RATE_CODE_18M 0x0E #define ATH5K_RATE_CODE_24M 0x09 #define ATH5K_RATE_CODE_36M 0x0D #define ATH5K_RATE_CODE_48M 0x08 #define ATH5K_RATE_CODE_54M 0x0C /* Adding this flag to rate_code on B rates * enables short preamble */ #define AR5K_SET_SHORT_PREAMBLE 0x04 /* * Crypto definitions */ #define AR5K_KEYCACHE_SIZE 8 extern bool ath5k_modparam_nohwcrypt; /***********************\ HW RELATED DEFINITIONS \***********************/ /* * Misc definitions */ #define AR5K_RSSI_EP_MULTIPLIER (1 << 7) #define AR5K_ASSERT_ENTRY(_e, _s) do { \ if (_e >= _s) \ return false; \ } while (0) /* * Hardware interrupt abstraction */ /** * enum ath5k_int - Hardware interrupt masks helpers * @AR5K_INT_RXOK: Frame successfully received * @AR5K_INT_RXDESC: Request RX descriptor/Read RX descriptor * @AR5K_INT_RXERR: Frame reception failed * @AR5K_INT_RXNOFRM: No frame received within a specified time period * @AR5K_INT_RXEOL: Reached "End Of List", means we need more RX descriptors * @AR5K_INT_RXORN: Indicates we got RX FIFO overrun. Note that Rx overrun is * not always fatal, on some chips we can continue operation * without resetting the card, that's why %AR5K_INT_FATAL is not * common for all chips. * @AR5K_INT_RX_ALL: Mask to identify all RX related interrupts * * @AR5K_INT_TXOK: Frame transmission success * @AR5K_INT_TXDESC: Request TX descriptor/Read TX status descriptor * @AR5K_INT_TXERR: Frame transmission failure * @AR5K_INT_TXEOL: Received End Of List for VEOL (Virtual End Of List). The * Queue Control Unit (QCU) signals an EOL interrupt only if a * descriptor's LinkPtr is NULL. For more details, refer to: * "http://www.freepatentsonline.com/20030225739.html" * @AR5K_INT_TXNOFRM: No frame was transmitted within a specified time period * @AR5K_INT_TXURN: Indicates we got TX FIFO underrun. In such case we should * increase the TX trigger threshold. * @AR5K_INT_TX_ALL: Mask to identify all TX related interrupts * * @AR5K_INT_MIB: Indicates the either Management Information Base counters or * one of the PHY error counters reached the maximum value and * should be read and cleared. * @AR5K_INT_SWI: Software triggered interrupt. * @AR5K_INT_RXPHY: RX PHY Error * @AR5K_INT_RXKCM: RX Key cache miss * @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a * beacon that must be handled in software. The alternative is if * you have VEOL support, in that case you let the hardware deal * with things. * @AR5K_INT_BRSSI: Beacon received with an RSSI value below our threshold * @AR5K_INT_BMISS: If in STA mode this indicates we have stopped seeing * beacons from the AP have associated with, we should probably * try to reassociate. When in IBSS mode this might mean we have * not received any beacons from any local stations. Note that * every station in an IBSS schedules to send beacons at the * Target Beacon Transmission Time (TBTT) with a random backoff. * @AR5K_INT_BNR: Beacon queue got triggered (DMA beacon alert) while empty. * @AR5K_INT_TIM: Beacon with local station's TIM bit set * @AR5K_INT_DTIM: Beacon with DTIM bit and zero DTIM count received * @AR5K_INT_DTIM_SYNC: DTIM sync lost * @AR5K_INT_GPIO: GPIO interrupt is used for RF Kill switches connected to * our GPIO pins. * @AR5K_INT_BCN_TIMEOUT: Beacon timeout, we waited after TBTT but got noting * @AR5K_INT_CAB_TIMEOUT: We waited for CAB traffic after the beacon but got * nothing or an incomplete CAB frame sequence. * @AR5K_INT_QCBRORN: A queue got it's CBR counter expired * @AR5K_INT_QCBRURN: A queue got triggered wile empty * @AR5K_INT_QTRIG: A queue got triggered * * @AR5K_INT_FATAL: Fatal errors were encountered, typically caused by bus/DMA * errors. Indicates we need to reset the card. * @AR5K_INT_GLOBAL: Used to clear and set the IER * @AR5K_INT_NOCARD: Signals the card has been removed * @AR5K_INT_COMMON: Common interrupts shared among MACs with the same * bit value * * These are mapped to take advantage of some common bits * between the MACs, to be able to set intr properties * easier. Some of them are not used yet inside hw.c. Most map * to the respective hw interrupt value as they are common among different * MACs. */ enum ath5k_int { AR5K_INT_RXOK = 0x00000001, AR5K_INT_RXDESC = 0x00000002, AR5K_INT_RXERR = 0x00000004, AR5K_INT_RXNOFRM = 0x00000008, AR5K_INT_RXEOL = 0x00000010, AR5K_INT_RXORN = 0x00000020, AR5K_INT_TXOK = 0x00000040, AR5K_INT_TXDESC = 0x00000080, AR5K_INT_TXERR = 0x00000100, AR5K_INT_TXNOFRM = 0x00000200, AR5K_INT_TXEOL = 0x00000400, AR5K_INT_TXURN = 0x00000800, AR5K_INT_MIB = 0x00001000, AR5K_INT_SWI = 0x00002000, AR5K_INT_RXPHY = 0x00004000, AR5K_INT_RXKCM = 0x00008000, AR5K_INT_SWBA = 0x00010000, AR5K_INT_BRSSI = 0x00020000, AR5K_INT_BMISS = 0x00040000, AR5K_INT_FATAL = 0x00080000, /* Non common */ AR5K_INT_BNR = 0x00100000, /* Non common */ AR5K_INT_TIM = 0x00200000, /* Non common */ AR5K_INT_DTIM = 0x00400000, /* Non common */ AR5K_INT_DTIM_SYNC = 0x00800000, /* Non common */ AR5K_INT_GPIO = 0x01000000, AR5K_INT_BCN_TIMEOUT = 0x02000000, /* Non common */ AR5K_INT_CAB_TIMEOUT = 0x04000000, /* Non common */ AR5K_INT_QCBRORN = 0x08000000, /* Non common */ AR5K_INT_QCBRURN = 0x10000000, /* Non common */ AR5K_INT_QTRIG = 0x20000000, /* Non common */ AR5K_INT_GLOBAL = 0x80000000, AR5K_INT_TX_ALL = AR5K_INT_TXOK | AR5K_INT_TXDESC | AR5K_INT_TXERR | AR5K_INT_TXNOFRM | AR5K_INT_TXEOL | AR5K_INT_TXURN, AR5K_INT_RX_ALL = AR5K_INT_RXOK | AR5K_INT_RXDESC | AR5K_INT_RXERR | AR5K_INT_RXNOFRM | AR5K_INT_RXEOL | AR5K_INT_RXORN, AR5K_INT_COMMON = AR5K_INT_RXOK | AR5K_INT_RXDESC | AR5K_INT_RXERR | AR5K_INT_RXNOFRM | AR5K_INT_RXEOL | AR5K_INT_RXORN | AR5K_INT_TXOK | AR5K_INT_TXDESC | AR5K_INT_TXERR | AR5K_INT_TXNOFRM | AR5K_INT_TXEOL | AR5K_INT_TXURN | AR5K_INT_MIB | AR5K_INT_SWI | AR5K_INT_RXPHY | AR5K_INT_RXKCM | AR5K_INT_SWBA | AR5K_INT_BRSSI | AR5K_INT_BMISS | AR5K_INT_GPIO | AR5K_INT_GLOBAL, AR5K_INT_NOCARD = 0xffffffff }; /** * enum ath5k_calibration_mask - Mask which calibration is active at the moment * @AR5K_CALIBRATION_FULL: Full calibration (AGC + SHORT) * @AR5K_CALIBRATION_SHORT: Short calibration (NF + I/Q) * @AR5K_CALIBRATION_NF: Noise Floor calibration * @AR5K_CALIBRATION_ANI: Adaptive Noise Immunity */ enum ath5k_calibration_mask { AR5K_CALIBRATION_FULL = 0x01, AR5K_CALIBRATION_SHORT = 0x02, AR5K_CALIBRATION_NF = 0x04, AR5K_CALIBRATION_ANI = 0x08, }; /** * enum ath5k_power_mode - Power management modes * @AR5K_PM_UNDEFINED: Undefined * @AR5K_PM_AUTO: Allow card to sleep if possible * @AR5K_PM_AWAKE: Force card to wake up * @AR5K_PM_FULL_SLEEP: Force card to full sleep (DANGEROUS) * @AR5K_PM_NETWORK_SLEEP: Allow to sleep for a specified duration * * Currently only PM_AWAKE is used, FULL_SLEEP and NETWORK_SLEEP/AUTO * are also known to have problems on some cards. This is not a big * problem though because we can have almost the same effect as * FULL_SLEEP by putting card on warm reset (it's almost powered down). */ enum ath5k_power_mode { AR5K_PM_UNDEFINED = 0, AR5K_PM_AUTO, AR5K_PM_AWAKE, AR5K_PM_FULL_SLEEP, AR5K_PM_NETWORK_SLEEP, }; /* * These match net80211 definitions (not used in * mac80211). * TODO: Clean this up */ #define AR5K_LED_INIT 0 /*IEEE80211_S_INIT*/ #define AR5K_LED_SCAN 1 /*IEEE80211_S_SCAN*/ #define AR5K_LED_AUTH 2 /*IEEE80211_S_AUTH*/ #define AR5K_LED_ASSOC 3 /*IEEE80211_S_ASSOC*/ #define AR5K_LED_RUN 4 /*IEEE80211_S_RUN*/ /* GPIO-controlled software LED */ #define AR5K_SOFTLED_PIN 0 #define AR5K_SOFTLED_ON 0 #define AR5K_SOFTLED_OFF 1 /* XXX: we *may* move cap_range stuff to struct wiphy */ struct ath5k_capabilities { /* * Supported PHY modes * (ie. AR5K_MODE_11A, AR5K_MODE_11B, ...) */ DECLARE_BITMAP(cap_mode, AR5K_MODE_MAX); /* * Frequency range (without regulation restrictions) */ struct { u16 range_2ghz_min; u16 range_2ghz_max; u16 range_5ghz_min; u16 range_5ghz_max; } cap_range; /* * Values stored in the EEPROM (some of them...) */ struct ath5k_eeprom_info cap_eeprom; /* * Queue information */ struct { u8 q_tx_num; } cap_queues; bool cap_has_phyerr_counters; bool cap_has_mrr_support; bool cap_needs_2GHz_ovr; }; /* size of noise floor history (keep it a power of two) */ #define ATH5K_NF_CAL_HIST_MAX 8 struct ath5k_nfcal_hist { s16 index; /* current index into nfval */ s16 nfval[ATH5K_NF_CAL_HIST_MAX]; /* last few noise floors */ }; #define ATH5K_LED_MAX_NAME_LEN 31 /* * State for LED triggers */ struct ath5k_led { char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */ struct ath5k_hw *ah; /* driver state */ struct led_classdev led_dev; /* led classdev */ }; /* Rfkill */ struct ath5k_rfkill { /* GPIO PIN for rfkill */ u16 gpio; /* polarity of rfkill GPIO PIN */ bool polarity; /* RFKILL toggle tasklet */ struct tasklet_struct toggleq; }; /* statistics */ struct ath5k_statistics { /* antenna use */ unsigned int antenna_rx[5]; /* frames count per antenna RX */ unsigned int antenna_tx[5]; /* frames count per antenna TX */ /* frame errors */ unsigned int rx_all_count; /* all RX frames, including errors */ unsigned int tx_all_count; /* all TX frames, including errors */ unsigned int rx_bytes_count; /* all RX bytes, including errored pkts * and the MAC headers for each packet */ unsigned int tx_bytes_count; /* all TX bytes, including errored pkts * and the MAC headers and padding for * each packet. */ unsigned int rxerr_crc; unsigned int rxerr_phy; unsigned int rxerr_phy_code[32]; unsigned int rxerr_fifo; unsigned int rxerr_decrypt; unsigned int rxerr_mic; unsigned int rxerr_proc; unsigned int rxerr_jumbo; unsigned int txerr_retry; unsigned int txerr_fifo; unsigned int txerr_filt; /* MIB counters */ unsigned int ack_fail; unsigned int rts_fail; unsigned int rts_ok; unsigned int fcs_error; unsigned int beacons; unsigned int mib_intr; unsigned int rxorn_intr; unsigned int rxeol_intr; }; /* * Misc defines */ #define AR5K_MAX_GPIO 10 #define AR5K_MAX_RF_BANKS 8 #if CHAN_DEBUG #define ATH_CHAN_MAX (26 + 26 + 26 + 200 + 200) #else #define ATH_CHAN_MAX (14 + 14 + 14 + 252 + 20) #endif #define ATH_RXBUF 40 /* number of RX buffers */ #define ATH_TXBUF 200 /* number of TX buffers */ #define ATH_BCBUF 4 /* number of beacon buffers */ #define ATH5K_TXQ_LEN_MAX (ATH_TXBUF / 4) /* bufs per queue */ #define ATH5K_TXQ_LEN_LOW (ATH5K_TXQ_LEN_MAX / 2) /* low mark */ DECLARE_EWMA(beacon_rssi, 10, 8) /* Driver state associated with an instance of a device */ struct ath5k_hw { struct ath_common common; struct pci_dev *pdev; struct device *dev; /* for dma mapping */ int irq; u16 devid; void __iomem *iobase; /* address of the device */ struct mutex lock; /* dev-level lock */ struct ieee80211_hw *hw; /* IEEE 802.11 common */ struct ieee80211_supported_band sbands[NUM_NL80211_BANDS]; struct ieee80211_channel channels[ATH_CHAN_MAX]; struct ieee80211_rate rates[NUM_NL80211_BANDS][AR5K_MAX_RATES]; s8 rate_idx[NUM_NL80211_BANDS][AR5K_MAX_RATES]; enum nl80211_iftype opmode; #ifdef CONFIG_ATH5K_DEBUG struct ath5k_dbg_info debug; /* debug info */ #endif /* CONFIG_ATH5K_DEBUG */ struct ath5k_buf *bufptr; /* allocated buffer ptr */ struct ath5k_desc *desc; /* TX/RX descriptors */ dma_addr_t desc_daddr; /* DMA (physical) address */ size_t desc_len; /* size of TX/RX descriptors */ DECLARE_BITMAP(status, 4); #define ATH_STAT_INVALID 0 /* disable hardware accesses */ #define ATH_STAT_LEDSOFT 2 /* enable LED gpio status */ #define ATH_STAT_STARTED 3 /* opened & irqs enabled */ #define ATH_STAT_RESET 4 /* hw reset */ unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */ unsigned int fif_filter_flags; /* Current FIF_* filter flags */ struct ieee80211_channel *curchan; /* current h/w channel */ u16 nvifs; enum ath5k_int imask; /* interrupt mask copy */ spinlock_t irqlock; bool rx_pending; /* rx tasklet pending */ bool tx_pending; /* tx tasklet pending */ u8 bssidmask[ETH_ALEN]; unsigned int led_pin, /* GPIO pin for driving LED */ led_on; /* pin setting for LED on */ struct work_struct reset_work; /* deferred chip reset */ struct work_struct calib_work; /* deferred phy calibration */ struct list_head rxbuf; /* receive buffer */ spinlock_t rxbuflock; u32 *rxlink; /* link ptr in last RX desc */ struct tasklet_struct rxtq; /* rx intr tasklet */ struct ath5k_led rx_led; /* rx led */ struct list_head txbuf; /* transmit buffer */ spinlock_t txbuflock; unsigned int txbuf_len; /* buf count in txbuf list */ struct ath5k_txq txqs[AR5K_NUM_TX_QUEUES]; /* tx queues */ struct tasklet_struct txtq; /* tx intr tasklet */ struct ath5k_led tx_led; /* tx led */ struct ath5k_rfkill rf_kill; spinlock_t block; /* protects beacon */ struct tasklet_struct beacontq; /* beacon intr tasklet */ struct list_head bcbuf; /* beacon buffer */ struct ieee80211_vif *bslot[ATH_BCBUF]; u16 num_ap_vifs; u16 num_adhoc_vifs; u16 num_mesh_vifs; unsigned int bhalq, /* SW q for outgoing beacons */ bmisscount, /* missed beacon transmits */ bintval, /* beacon interval in TU */ bsent; unsigned int nexttbtt; /* next beacon time in TU */ struct ath5k_txq *cabq; /* content after beacon */ bool assoc; /* associate state */ bool enable_beacon; /* true if beacons are on */ struct ath5k_statistics stats; struct ath5k_ani_state ani_state; struct tasklet_struct ani_tasklet; /* ANI calibration */ struct delayed_work tx_complete_work; struct survey_info survey; /* collected survey info */ enum ath5k_int ah_imr; struct ieee80211_channel *ah_current_channel; bool ah_iq_cal_needed; bool ah_single_chip; enum ath5k_version ah_version; enum ath5k_radio ah_radio; u32 ah_mac_srev; u16 ah_mac_version; u16 ah_phy_revision; u16 ah_radio_5ghz_revision; u16 ah_radio_2ghz_revision; #define ah_modes ah_capabilities.cap_mode #define ah_ee_version ah_capabilities.cap_eeprom.ee_version u8 ah_retry_long; u8 ah_retry_short; bool ah_use_32khz_clock; u8 ah_coverage_class; bool ah_ack_bitrate_high; u8 ah_bwmode; bool ah_short_slot; /* Antenna Control */ u32 ah_ant_ctl[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX]; u8 ah_ant_mode; u8 ah_tx_ant; u8 ah_def_ant; struct ath5k_capabilities ah_capabilities; struct ath5k_txq_info ah_txq[AR5K_NUM_TX_QUEUES]; u32 ah_txq_status; u32 ah_txq_imr_txok; u32 ah_txq_imr_txerr; u32 ah_txq_imr_txurn; u32 ah_txq_imr_txdesc; u32 ah_txq_imr_txeol; u32 ah_txq_imr_cbrorn; u32 ah_txq_imr_cbrurn; u32 ah_txq_imr_qtrig; u32 ah_txq_imr_nofrm; u32 ah_txq_isr_txok_all; u32 ah_txq_isr_txurn; u32 ah_txq_isr_qcborn; u32 ah_txq_isr_qcburn; u32 ah_txq_isr_qtrig; u32 *ah_rf_banks; size_t ah_rf_banks_size; size_t ah_rf_regs_count; struct ath5k_gain ah_gain; u8 ah_offset[AR5K_MAX_RF_BANKS]; struct { /* Temporary tables used for interpolation */ u8 tmpL[AR5K_EEPROM_N_PD_GAINS] [AR5K_EEPROM_POWER_TABLE_SIZE]; u8 tmpR[AR5K_EEPROM_N_PD_GAINS] [AR5K_EEPROM_POWER_TABLE_SIZE]; u8 txp_pd_table[AR5K_EEPROM_POWER_TABLE_SIZE * 2]; u16 txp_rates_power_table[AR5K_MAX_RATES]; u8 txp_min_idx; bool txp_tpc; /* Values in 0.25dB units */ s16 txp_min_pwr; s16 txp_max_pwr; s16 txp_cur_pwr; /* Values in 0.5dB units */ s16 txp_offset; s16 txp_ofdm; s16 txp_cck_ofdm_gainf_delta; /* Value in dB units */ s16 txp_cck_ofdm_pwr_delta; bool txp_setup; int txp_requested; /* Requested tx power in dBm */ } ah_txpower; struct ath5k_nfcal_hist ah_nfcal_hist; /* average beacon RSSI in our BSS (used by ANI) */ struct ewma_beacon_rssi ah_beacon_rssi_avg; /* noise floor from last periodic calibration */ s32 ah_noise_floor; /* Calibration timestamp */ unsigned long ah_cal_next_full; unsigned long ah_cal_next_short; unsigned long ah_cal_next_ani; /* Calibration mask */ u8 ah_cal_mask; /* * Function pointers */ int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *, unsigned int, unsigned int, int, enum ath5k_pkt_type, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int); int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *, struct ath5k_tx_status *); int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *, struct ath5k_rx_status *); }; struct ath_bus_ops { enum ath_bus_type ath_bus_type; void (*read_cachesize)(struct ath_common *common, int *csz); bool (*eeprom_read)(struct ath_common *common, u32 off, u16 *data); int (*eeprom_read_mac)(struct ath5k_hw *ah, u8 *mac); }; /* * Prototypes */ extern const struct ieee80211_ops ath5k_hw_ops; /* Initialization and detach functions */ int ath5k_hw_init(struct ath5k_hw *ah); void ath5k_hw_deinit(struct ath5k_hw *ah); int ath5k_sysfs_register(struct ath5k_hw *ah); void ath5k_sysfs_unregister(struct ath5k_hw *ah); /*Chip id helper functions */ int ath5k_hw_read_srev(struct ath5k_hw *ah); /* LED functions */ int ath5k_init_leds(struct ath5k_hw *ah); void ath5k_led_enable(struct ath5k_hw *ah); void ath5k_led_off(struct ath5k_hw *ah); void ath5k_unregister_leds(struct ath5k_hw *ah); /* Reset Functions */ int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, struct ieee80211_channel *channel); int ath5k_hw_on_hold(struct ath5k_hw *ah); int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode, struct ieee80211_channel *channel, bool fast, bool skip_pcu); int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val, bool is_set); /* Power management functions */ /* Clock rate related functions */ unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec); unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock); void ath5k_hw_set_clockrate(struct ath5k_hw *ah); /* DMA Related Functions */ void ath5k_hw_start_rx_dma(struct ath5k_hw *ah); u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah); int ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr); int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue); int ath5k_hw_stop_beacon_queue(struct ath5k_hw *ah, unsigned int queue); u32 ath5k_hw_get_txdp(struct ath5k_hw *ah, unsigned int queue); int ath5k_hw_set_txdp(struct ath5k_hw *ah, unsigned int queue, u32 phys_addr); int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase); /* Interrupt handling */ bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah); int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask); enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask); void ath5k_hw_update_mib_counters(struct ath5k_hw *ah); /* Init/Stop functions */ void ath5k_hw_dma_init(struct ath5k_hw *ah); int ath5k_hw_dma_stop(struct ath5k_hw *ah); /* EEPROM access functions */ int ath5k_eeprom_init(struct ath5k_hw *ah); void ath5k_eeprom_detach(struct ath5k_hw *ah); int ath5k_eeprom_mode_from_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel); /* Protocol Control Unit Functions */ /* Helpers */ int ath5k_hw_get_frame_duration(struct ath5k_hw *ah, enum nl80211_band band, int len, struct ieee80211_rate *rate, bool shortpre); unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah); unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah); int ath5k_hw_set_opmode(struct ath5k_hw *ah, enum nl80211_iftype opmode); void ath5k_hw_set_coverage_class(struct ath5k_hw *ah, u8 coverage_class); /* RX filter control*/ int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac); void ath5k_hw_set_bssid(struct ath5k_hw *ah); void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask); void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1); u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah); void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter); /* Receive (DRU) start/stop functions */ void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah); void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah); /* Beacon control functions */ u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah); void ath5k_hw_set_tsf64(struct ath5k_hw *ah, u64 tsf64); void ath5k_hw_reset_tsf(struct ath5k_hw *ah); void ath5k_hw_init_beacon_timers(struct ath5k_hw *ah, u32 next_beacon, u32 interval); bool ath5k_hw_check_beacon_timers(struct ath5k_hw *ah, int intval); /* Init function */ void ath5k_hw_pcu_init(struct ath5k_hw *ah, enum nl80211_iftype op_mode); /* Queue Control Unit, DFS Control Unit Functions */ int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue, struct ath5k_txq_info *queue_info); int ath5k_hw_set_tx_queueprops(struct ath5k_hw *ah, int queue, const struct ath5k_txq_info *queue_info); int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah, enum ath5k_tx_queue queue_type, struct ath5k_txq_info *queue_info); void ath5k_hw_set_tx_retry_limits(struct ath5k_hw *ah, unsigned int queue); u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue); void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue); int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue); int ath5k_hw_set_ifs_intervals(struct ath5k_hw *ah, unsigned int slot_time); /* Init function */ int ath5k_hw_init_queues(struct ath5k_hw *ah); /* Hardware Descriptor Functions */ int ath5k_hw_init_desc_functions(struct ath5k_hw *ah); int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc, u32 size, unsigned int flags); int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc, unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2, u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3); /* GPIO Functions */ void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state); int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio); int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio); u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio); int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val); void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio, u32 interrupt_level); /* RFkill Functions */ void ath5k_rfkill_hw_start(struct ath5k_hw *ah); void ath5k_rfkill_hw_stop(struct ath5k_hw *ah); /* Misc functions TODO: Cleanup */ int ath5k_hw_set_capabilities(struct ath5k_hw *ah); int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid, u16 assoc_id); int ath5k_hw_disable_pspoll(struct ath5k_hw *ah); /* Initial register settings functions */ int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel); /* PHY functions */ /* Misc PHY functions */ u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, enum nl80211_band band); int ath5k_hw_phy_disable(struct ath5k_hw *ah); /* Gain_F optimization */ enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah); int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah); /* PHY/RF channel functions */ bool ath5k_channel_ok(struct ath5k_hw *ah, struct ieee80211_channel *channel); /* PHY calibration */ void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah); int ath5k_hw_phy_calibrate(struct ath5k_hw *ah, struct ieee80211_channel *channel); void ath5k_hw_update_noise_floor(struct ath5k_hw *ah); /* Spur mitigation */ bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah, struct ieee80211_channel *channel); /* Antenna control */ void ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode); void ath5k_hw_set_antenna_switch(struct ath5k_hw *ah, u8 ee_mode); /* TX power setup */ int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower); /* Init function */ int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel, u8 mode, bool fast); /* * Functions used internally */ static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah) { return &ah->common; } static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah) { return &(ath5k_hw_common(ah)->regulatory); } #ifdef CONFIG_ATH5K_AHB #define AR5K_AR2315_PCI_BASE ((void __iomem *)0xb0100000) static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg) { /* On AR2315 and AR2317 the PCI clock domain registers * are outside of the WMAC register space */ if (unlikely((reg >= 0x4000) && (reg < 0x5000) && (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6))) return AR5K_AR2315_PCI_BASE + reg; return ah->iobase + reg; } static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg) { return ioread32(ath5k_ahb_reg(ah, reg)); } static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg) { iowrite32(val, ath5k_ahb_reg(ah, reg)); } #else static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg) { return ioread32(ah->iobase + reg); } static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg) { iowrite32(val, ah->iobase + reg); } #endif static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah) { return ath5k_hw_common(ah)->bus_ops->ath_bus_type; } static inline void ath5k_read_cachesize(struct ath_common *common, int *csz) { common->bus_ops->read_cachesize(common, csz); } static inline bool ath5k_hw_nvram_read(struct ath5k_hw *ah, u32 off, u16 *data) { struct ath_common *common = ath5k_hw_common(ah); return common->bus_ops->eeprom_read(common, off, data); } static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits) { u32 retval = 0, bit, i; for (i = 0; i < bits; i++) { bit = (val >> i) & 1; retval = (retval << 1) | bit; } return retval; } #endif
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