Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Atheros CARL9170 driver |
| 3 | * |
| 4 | * Driver specific definitions |
| 5 | * |
| 6 | * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> |
| 7 | * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; see the file COPYING. If not, see |
| 21 | * http://www.gnu.org/licenses/. |
| 22 | * |
| 23 | * This file incorporates work covered by the following copyright and |
| 24 | * permission notice: |
| 25 | * Copyright (c) 2007-2008 Atheros Communications, Inc. |
| 26 | * |
| 27 | * Permission to use, copy, modify, and/or distribute this software for any |
| 28 | * purpose with or without fee is hereby granted, provided that the above |
| 29 | * copyright notice and this permission notice appear in all copies. |
| 30 | * |
| 31 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 32 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 33 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 34 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 35 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 36 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 37 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 38 | */ |
| 39 | #ifndef __CARL9170_H |
| 40 | #define __CARL9170_H |
| 41 | |
| 42 | #include <linux/kernel.h> |
| 43 | #include <linux/firmware.h> |
| 44 | #include <linux/completion.h> |
| 45 | #include <linux/spinlock.h> |
Christian Lamparter | 00044f1 | 2011-08-15 20:09:54 +0200 | [diff] [blame] | 46 | #include <linux/hw_random.h> |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 47 | #include <net/cfg80211.h> |
| 48 | #include <net/mac80211.h> |
| 49 | #include <linux/usb.h> |
| 50 | #ifdef CONFIG_CARL9170_LEDS |
| 51 | #include <linux/leds.h> |
Hauke Mehrtens | 8e7ce89 | 2010-10-23 19:51:32 +0200 | [diff] [blame] | 52 | #endif /* CONFIG_CARL9170_LEDS */ |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 53 | #ifdef CONFIG_CARL9170_WPC |
| 54 | #include <linux/input.h> |
| 55 | #endif /* CONFIG_CARL9170_WPC */ |
| 56 | #include "eeprom.h" |
| 57 | #include "wlan.h" |
| 58 | #include "hw.h" |
| 59 | #include "fwdesc.h" |
| 60 | #include "fwcmd.h" |
| 61 | #include "../regd.h" |
| 62 | |
| 63 | #ifdef CONFIG_CARL9170_DEBUGFS |
| 64 | #include "debug.h" |
| 65 | #endif /* CONFIG_CARL9170_DEBUGFS */ |
| 66 | |
| 67 | #define CARL9170FW_NAME "carl9170-1.fw" |
| 68 | |
| 69 | #define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1) |
| 70 | |
Christian Lamparter | 85ee512 | 2011-06-30 20:27:47 +0200 | [diff] [blame] | 71 | static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 3, 2, 1, 0 }; |
| 72 | |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 73 | #define CARL9170_MAX_RX_BUFFER_SIZE 8192 |
| 74 | |
| 75 | enum carl9170_device_state { |
| 76 | CARL9170_UNKNOWN_STATE, |
| 77 | CARL9170_STOPPED, |
| 78 | CARL9170_IDLE, |
| 79 | CARL9170_STARTED, |
| 80 | }; |
| 81 | |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 82 | #define WME_BA_BMP_SIZE 64 |
| 83 | #define CARL9170_TX_USER_RATE_TRIES 3 |
| 84 | |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 85 | #define TID_TO_WME_AC(_tid) \ |
Christian Lamparter | 558925f | 2012-12-20 02:44:29 +0100 | [diff] [blame] | 86 | ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \ |
| 87 | (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \ |
| 88 | (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \ |
| 89 | IEEE80211_AC_VO) |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 90 | |
| 91 | #define SEQ_DIFF(_start, _seq) \ |
| 92 | (((_start) - (_seq)) & 0x0fff) |
| 93 | #define SEQ_PREV(_seq) \ |
| 94 | (((_seq) - 1) & 0x0fff) |
| 95 | #define SEQ_NEXT(_seq) \ |
| 96 | (((_seq) + 1) & 0x0fff) |
| 97 | #define BAW_WITHIN(_start, _bawsz, _seqno) \ |
| 98 | ((((_seqno) - (_start)) & 0xfff) < (_bawsz)) |
| 99 | |
| 100 | enum carl9170_tid_state { |
| 101 | CARL9170_TID_STATE_INVALID, |
| 102 | CARL9170_TID_STATE_KILLED, |
| 103 | CARL9170_TID_STATE_SHUTDOWN, |
| 104 | CARL9170_TID_STATE_SUSPEND, |
| 105 | CARL9170_TID_STATE_PROGRESS, |
| 106 | CARL9170_TID_STATE_IDLE, |
| 107 | CARL9170_TID_STATE_XMIT, |
| 108 | }; |
| 109 | |
| 110 | #define CARL9170_BAW_BITS (2 * WME_BA_BMP_SIZE) |
| 111 | #define CARL9170_BAW_SIZE (BITS_TO_LONGS(CARL9170_BAW_BITS)) |
| 112 | #define CARL9170_BAW_LEN (DIV_ROUND_UP(CARL9170_BAW_BITS, BITS_PER_BYTE)) |
| 113 | |
| 114 | struct carl9170_sta_tid { |
| 115 | /* must be the first entry! */ |
| 116 | struct list_head list; |
| 117 | |
| 118 | /* temporary list for RCU unlink procedure */ |
| 119 | struct list_head tmp_list; |
| 120 | |
| 121 | /* lock for the following data structures */ |
| 122 | spinlock_t lock; |
| 123 | |
| 124 | unsigned int counter; |
| 125 | enum carl9170_tid_state state; |
| 126 | u8 tid; /* TID number ( 0 - 15 ) */ |
| 127 | u16 max; /* max. AMPDU size */ |
| 128 | |
| 129 | u16 snx; /* awaiting _next_ frame */ |
| 130 | u16 hsn; /* highest _queued_ sequence */ |
| 131 | u16 bsn; /* base of the tx/agg bitmap */ |
| 132 | unsigned long bitmap[CARL9170_BAW_SIZE]; |
| 133 | |
| 134 | /* Preaggregation reorder queue */ |
| 135 | struct sk_buff_head queue; |
Christian Lamparter | 9ad86ed | 2013-06-12 21:35:39 +0200 | [diff] [blame] | 136 | |
| 137 | struct ieee80211_sta *sta; |
| 138 | struct ieee80211_vif *vif; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 139 | }; |
| 140 | |
| 141 | #define CARL9170_QUEUE_TIMEOUT 256 |
| 142 | #define CARL9170_BUMP_QUEUE 1000 |
| 143 | #define CARL9170_TX_TIMEOUT 2500 |
| 144 | #define CARL9170_JANITOR_DELAY 128 |
| 145 | #define CARL9170_QUEUE_STUCK_TIMEOUT 5500 |
Christian Lamparter | acf1771 | 2011-08-15 19:50:48 +0200 | [diff] [blame] | 146 | #define CARL9170_STAT_WORK 30000 |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 147 | |
| 148 | #define CARL9170_NUM_TX_AGG_MAX 30 |
| 149 | |
| 150 | /* |
| 151 | * Tradeoff between stability/latency and speed. |
| 152 | * |
| 153 | * AR9170_TXQ_DEPTH is devised by dividing the amount of available |
| 154 | * tx buffers with the size of a full ethernet frame + overhead. |
| 155 | * |
| 156 | * Naturally: The higher the limit, the faster the device CAN send. |
| 157 | * However, even a slight over-commitment at the wrong time and the |
| 158 | * hardware is doomed to send all already-queued frames at suboptimal |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 159 | * rates. This in turn leads to an enormous amount of unsuccessful |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 160 | * retries => Latency goes up, whereas the throughput goes down. CRASH! |
| 161 | */ |
| 162 | #define CARL9170_NUM_TX_LIMIT_HARD ((AR9170_TXQ_DEPTH * 3) / 2) |
| 163 | #define CARL9170_NUM_TX_LIMIT_SOFT (AR9170_TXQ_DEPTH) |
| 164 | |
| 165 | struct carl9170_tx_queue_stats { |
| 166 | unsigned int count; |
| 167 | unsigned int limit; |
| 168 | unsigned int len; |
| 169 | }; |
| 170 | |
| 171 | struct carl9170_vif { |
| 172 | unsigned int id; |
Pavel Roskin | 70126f6 | 2011-07-19 18:02:15 -0400 | [diff] [blame] | 173 | struct ieee80211_vif __rcu *vif; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 174 | }; |
| 175 | |
| 176 | struct carl9170_vif_info { |
| 177 | struct list_head list; |
| 178 | bool active; |
| 179 | unsigned int id; |
| 180 | struct sk_buff *beacon; |
| 181 | bool enable_beacon; |
| 182 | }; |
| 183 | |
| 184 | #define AR9170_NUM_RX_URBS 16 |
| 185 | #define AR9170_NUM_RX_URBS_MUL 2 |
| 186 | #define AR9170_NUM_TX_URBS 8 |
| 187 | #define AR9170_NUM_RX_URBS_POOL (AR9170_NUM_RX_URBS_MUL * AR9170_NUM_RX_URBS) |
| 188 | |
| 189 | enum carl9170_device_features { |
| 190 | CARL9170_WPS_BUTTON = BIT(0), |
| 191 | CARL9170_ONE_LED = BIT(1), |
| 192 | }; |
| 193 | |
| 194 | #ifdef CONFIG_CARL9170_LEDS |
| 195 | struct ar9170; |
| 196 | |
| 197 | struct carl9170_led { |
| 198 | struct ar9170 *ar; |
| 199 | struct led_classdev l; |
| 200 | char name[32]; |
| 201 | unsigned int toggled; |
| 202 | bool last_state; |
| 203 | bool registered; |
| 204 | }; |
| 205 | #endif /* CONFIG_CARL9170_LEDS */ |
| 206 | |
| 207 | enum carl9170_restart_reasons { |
| 208 | CARL9170_RR_NO_REASON = 0, |
| 209 | CARL9170_RR_FATAL_FIRMWARE_ERROR, |
| 210 | CARL9170_RR_TOO_MANY_FIRMWARE_ERRORS, |
| 211 | CARL9170_RR_WATCHDOG, |
| 212 | CARL9170_RR_STUCK_TX, |
Christian Lamparter | e4a668c | 2010-10-29 23:26:13 +0200 | [diff] [blame] | 213 | CARL9170_RR_UNRESPONSIVE_DEVICE, |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 214 | CARL9170_RR_COMMAND_TIMEOUT, |
| 215 | CARL9170_RR_TOO_MANY_PHY_ERRORS, |
| 216 | CARL9170_RR_LOST_RSP, |
| 217 | CARL9170_RR_INVALID_RSP, |
| 218 | CARL9170_RR_USER_REQUEST, |
| 219 | |
| 220 | __CARL9170_RR_LAST, |
| 221 | }; |
| 222 | |
| 223 | enum carl9170_erp_modes { |
| 224 | CARL9170_ERP_INVALID, |
| 225 | CARL9170_ERP_AUTO, |
| 226 | CARL9170_ERP_MAC80211, |
| 227 | CARL9170_ERP_OFF, |
| 228 | CARL9170_ERP_CTS, |
| 229 | CARL9170_ERP_RTS, |
| 230 | __CARL9170_ERP_NUM, |
| 231 | }; |
| 232 | |
| 233 | struct ar9170 { |
| 234 | struct ath_common common; |
| 235 | struct ieee80211_hw *hw; |
| 236 | struct mutex mutex; |
| 237 | enum carl9170_device_state state; |
| 238 | spinlock_t state_lock; |
| 239 | enum carl9170_restart_reasons last_reason; |
| 240 | bool registered; |
| 241 | |
| 242 | /* USB */ |
| 243 | struct usb_device *udev; |
| 244 | struct usb_interface *intf; |
| 245 | struct usb_anchor rx_anch; |
| 246 | struct usb_anchor rx_work; |
| 247 | struct usb_anchor rx_pool; |
| 248 | struct usb_anchor tx_wait; |
| 249 | struct usb_anchor tx_anch; |
| 250 | struct usb_anchor tx_cmd; |
| 251 | struct usb_anchor tx_err; |
| 252 | struct tasklet_struct usb_tasklet; |
| 253 | atomic_t tx_cmd_urbs; |
| 254 | atomic_t tx_anch_urbs; |
| 255 | atomic_t rx_anch_urbs; |
| 256 | atomic_t rx_work_urbs; |
| 257 | atomic_t rx_pool_urbs; |
| 258 | kernel_ulong_t features; |
Ronald Wahl | 671796d | 2014-08-07 14:15:50 +0200 | [diff] [blame] | 259 | bool usb_ep_cmd_is_bulk; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 260 | |
| 261 | /* firmware settings */ |
| 262 | struct completion fw_load_wait; |
| 263 | struct completion fw_boot_wait; |
| 264 | struct { |
| 265 | const struct carl9170fw_desc_head *desc; |
| 266 | const struct firmware *fw; |
| 267 | unsigned int offset; |
| 268 | unsigned int address; |
| 269 | unsigned int cmd_bufs; |
| 270 | unsigned int api_version; |
| 271 | unsigned int vif_num; |
| 272 | unsigned int err_counter; |
| 273 | unsigned int bug_counter; |
| 274 | u32 beacon_addr; |
| 275 | unsigned int beacon_max_len; |
| 276 | bool rx_stream; |
| 277 | bool tx_stream; |
Christian Lamparter | 5c89569 | 2010-09-28 23:00:59 +0200 | [diff] [blame] | 278 | bool rx_filter; |
Christian Lamparter | 7ccc83b | 2011-08-15 18:45:54 +0200 | [diff] [blame] | 279 | bool hw_counters; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 280 | unsigned int mem_blocks; |
| 281 | unsigned int mem_block_size; |
| 282 | unsigned int rx_size; |
Christian Lamparter | aa32452 | 2011-01-23 00:18:28 +0100 | [diff] [blame] | 283 | unsigned int tx_seq_table; |
Christian Lamparter | c9122c0 | 2012-07-07 21:13:59 +0200 | [diff] [blame] | 284 | bool ba_filter; |
Christian Lamparter | 7a5c730 | 2012-12-17 16:30:05 +0100 | [diff] [blame] | 285 | bool disable_offload_fw; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 286 | } fw; |
| 287 | |
Christian Lamparter | df64962 | 2011-05-14 02:42:38 +0200 | [diff] [blame] | 288 | /* interface configuration combinations */ |
| 289 | struct ieee80211_iface_limit if_comb_limits[1]; |
| 290 | struct ieee80211_iface_combination if_combs[1]; |
| 291 | |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 292 | /* reset / stuck frames/queue detection */ |
| 293 | struct work_struct restart_work; |
Christian Lamparter | e4a668c | 2010-10-29 23:26:13 +0200 | [diff] [blame] | 294 | struct work_struct ping_work; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 295 | unsigned int restart_counter; |
| 296 | unsigned long queue_stop_timeout[__AR9170_NUM_TXQ]; |
| 297 | unsigned long max_queue_stop_timeout[__AR9170_NUM_TXQ]; |
| 298 | bool needs_full_reset; |
Ronald Wahl | 5bcbc3f | 2012-10-08 14:17:07 +0200 | [diff] [blame] | 299 | bool force_usb_reset; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 300 | atomic_t pending_restarts; |
| 301 | |
| 302 | /* interface mode settings */ |
| 303 | struct list_head vif_list; |
| 304 | unsigned long vif_bitmap; |
| 305 | unsigned int vifs; |
| 306 | struct carl9170_vif vif_priv[AR9170_MAX_VIRTUAL_MAC]; |
| 307 | |
| 308 | /* beaconing */ |
| 309 | spinlock_t beacon_lock; |
| 310 | unsigned int global_pretbtt; |
| 311 | unsigned int global_beacon_int; |
Pavel Roskin | 70126f6 | 2011-07-19 18:02:15 -0400 | [diff] [blame] | 312 | struct carl9170_vif_info __rcu *beacon_iter; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 313 | unsigned int beacon_enabled; |
| 314 | |
| 315 | /* cryptographic engine */ |
| 316 | u64 usedkeys; |
| 317 | bool rx_software_decryption; |
| 318 | bool disable_offload; |
| 319 | |
| 320 | /* filter settings */ |
| 321 | u64 cur_mc_hash; |
| 322 | u32 cur_filter; |
| 323 | unsigned int filter_state; |
Christian Lamparter | 5c89569 | 2010-09-28 23:00:59 +0200 | [diff] [blame] | 324 | unsigned int rx_filter_caps; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 325 | bool sniffer_enabled; |
| 326 | |
| 327 | /* MAC */ |
| 328 | enum carl9170_erp_modes erp_mode; |
| 329 | |
| 330 | /* PHY */ |
| 331 | struct ieee80211_channel *channel; |
Christian Lamparter | acf1771 | 2011-08-15 19:50:48 +0200 | [diff] [blame] | 332 | unsigned int num_channels; |
Christian Lamparter | 9adc9e0 | 2010-09-17 22:42:37 +0200 | [diff] [blame] | 333 | int noise[4]; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 334 | unsigned int chan_fail; |
| 335 | unsigned int total_chan_fail; |
| 336 | u8 heavy_clip; |
Christian Lamparter | 7357611 | 2010-09-17 23:09:19 +0200 | [diff] [blame] | 337 | u8 ht_settings; |
Christian Lamparter | acf1771 | 2011-08-15 19:50:48 +0200 | [diff] [blame] | 338 | struct { |
| 339 | u64 active; /* usec */ |
| 340 | u64 cca; /* usec */ |
| 341 | u64 tx_time; /* usec */ |
| 342 | u64 rx_total; |
| 343 | u64 rx_overrun; |
| 344 | } tally; |
| 345 | struct delayed_work stat_work; |
| 346 | struct survey_info *survey; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 347 | |
| 348 | /* power calibration data */ |
| 349 | u8 power_5G_leg[4]; |
| 350 | u8 power_2G_cck[4]; |
| 351 | u8 power_2G_ofdm[4]; |
| 352 | u8 power_5G_ht20[8]; |
| 353 | u8 power_5G_ht40[8]; |
| 354 | u8 power_2G_ht20[8]; |
| 355 | u8 power_2G_ht40[8]; |
| 356 | |
| 357 | #ifdef CONFIG_CARL9170_LEDS |
| 358 | /* LED */ |
| 359 | struct delayed_work led_work; |
| 360 | struct carl9170_led leds[AR9170_NUM_LEDS]; |
| 361 | #endif /* CONFIG_CARL9170_LEDS */ |
| 362 | |
| 363 | /* qos queue settings */ |
| 364 | spinlock_t tx_stats_lock; |
| 365 | struct carl9170_tx_queue_stats tx_stats[__AR9170_NUM_TXQ]; |
| 366 | struct ieee80211_tx_queue_params edcf[5]; |
| 367 | struct completion tx_flush; |
| 368 | |
| 369 | /* CMD */ |
| 370 | int cmd_seq; |
| 371 | int readlen; |
| 372 | u8 *readbuf; |
| 373 | spinlock_t cmd_lock; |
| 374 | struct completion cmd_wait; |
| 375 | union { |
| 376 | __le32 cmd_buf[PAYLOAD_MAX + 1]; |
| 377 | struct carl9170_cmd cmd; |
| 378 | struct carl9170_rsp rsp; |
| 379 | }; |
| 380 | |
| 381 | /* statistics */ |
| 382 | unsigned int tx_dropped; |
| 383 | unsigned int tx_ack_failures; |
| 384 | unsigned int tx_fcs_errors; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 385 | unsigned int rx_dropped; |
| 386 | |
| 387 | /* EEPROM */ |
| 388 | struct ar9170_eeprom eeprom; |
| 389 | |
| 390 | /* tx queuing */ |
| 391 | struct sk_buff_head tx_pending[__AR9170_NUM_TXQ]; |
| 392 | struct sk_buff_head tx_status[__AR9170_NUM_TXQ]; |
| 393 | struct delayed_work tx_janitor; |
| 394 | unsigned long tx_janitor_last_run; |
| 395 | bool tx_schedule; |
| 396 | |
| 397 | /* tx ampdu */ |
| 398 | struct work_struct ampdu_work; |
| 399 | spinlock_t tx_ampdu_list_lock; |
Pavel Roskin | 70126f6 | 2011-07-19 18:02:15 -0400 | [diff] [blame] | 400 | struct carl9170_sta_tid __rcu *tx_ampdu_iter; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 401 | struct list_head tx_ampdu_list; |
| 402 | atomic_t tx_ampdu_upload; |
| 403 | atomic_t tx_ampdu_scheduler; |
| 404 | atomic_t tx_total_pending; |
| 405 | atomic_t tx_total_queued; |
| 406 | unsigned int tx_ampdu_list_len; |
| 407 | int current_density; |
| 408 | int current_factor; |
| 409 | bool tx_ampdu_schedule; |
| 410 | |
| 411 | /* internal memory management */ |
| 412 | spinlock_t mem_lock; |
| 413 | unsigned long *mem_bitmap; |
| 414 | atomic_t mem_free_blocks; |
| 415 | atomic_t mem_allocs; |
| 416 | |
| 417 | /* rxstream mpdu merge */ |
| 418 | struct ar9170_rx_head rx_plcp; |
| 419 | bool rx_has_plcp; |
| 420 | struct sk_buff *rx_failover; |
| 421 | int rx_failover_missing; |
Christian Lamparter | 33dd769 | 2012-07-31 21:12:16 +0000 | [diff] [blame] | 422 | u32 ampdu_ref; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 423 | |
Christian Lamparter | c9122c0 | 2012-07-07 21:13:59 +0200 | [diff] [blame] | 424 | /* FIFO for collecting outstanding BlockAckRequest */ |
| 425 | struct list_head bar_list[__AR9170_NUM_TXQ]; |
| 426 | spinlock_t bar_list_lock[__AR9170_NUM_TXQ]; |
| 427 | |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 428 | #ifdef CONFIG_CARL9170_WPC |
| 429 | struct { |
| 430 | bool pbc_state; |
| 431 | struct input_dev *pbc; |
| 432 | char name[32]; |
| 433 | char phys[32]; |
| 434 | } wps; |
| 435 | #endif /* CONFIG_CARL9170_WPC */ |
| 436 | |
| 437 | #ifdef CONFIG_CARL9170_DEBUGFS |
| 438 | struct carl9170_debug debug; |
| 439 | struct dentry *debug_dir; |
| 440 | #endif /* CONFIG_CARL9170_DEBUGFS */ |
| 441 | |
| 442 | /* PSM */ |
| 443 | struct work_struct ps_work; |
| 444 | struct { |
| 445 | unsigned int dtim_counter; |
| 446 | unsigned long last_beacon; |
| 447 | unsigned long last_action; |
| 448 | unsigned long last_slept; |
| 449 | unsigned int sleep_ms; |
| 450 | unsigned int off_override; |
| 451 | bool state; |
| 452 | } ps; |
Christian Lamparter | 00044f1 | 2011-08-15 20:09:54 +0200 | [diff] [blame] | 453 | |
| 454 | #ifdef CONFIG_CARL9170_HWRNG |
| 455 | # define CARL9170_HWRNG_CACHE_SIZE CARL9170_MAX_CMD_PAYLOAD_LEN |
| 456 | struct { |
| 457 | struct hwrng rng; |
| 458 | bool initialized; |
| 459 | char name[30 + 1]; |
| 460 | u16 cache[CARL9170_HWRNG_CACHE_SIZE / sizeof(u16)]; |
| 461 | unsigned int cache_idx; |
| 462 | } rng; |
| 463 | #endif /* CONFIG_CARL9170_HWRNG */ |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 464 | }; |
| 465 | |
| 466 | enum carl9170_ps_off_override_reasons { |
| 467 | PS_OFF_VIF = BIT(0), |
| 468 | PS_OFF_BCN = BIT(1), |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 469 | }; |
| 470 | |
Christian Lamparter | c9122c0 | 2012-07-07 21:13:59 +0200 | [diff] [blame] | 471 | struct carl9170_bar_list_entry { |
| 472 | struct list_head list; |
| 473 | struct rcu_head head; |
| 474 | struct sk_buff *skb; |
| 475 | }; |
| 476 | |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 477 | struct carl9170_ba_stats { |
| 478 | u8 ampdu_len; |
| 479 | u8 ampdu_ack_len; |
| 480 | bool clear; |
Christian Lamparter | 24047e2 | 2011-03-29 13:43:14 +0200 | [diff] [blame] | 481 | bool req; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 482 | }; |
| 483 | |
| 484 | struct carl9170_sta_info { |
| 485 | bool ht_sta; |
Christian Lamparter | caf1eae | 2011-04-24 17:44:19 +0200 | [diff] [blame] | 486 | bool sleeping; |
| 487 | atomic_t pending_frames; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 488 | unsigned int ampdu_max_len; |
Christian Lamparter | 558925f | 2012-12-20 02:44:29 +0100 | [diff] [blame] | 489 | struct carl9170_sta_tid __rcu *agg[IEEE80211_NUM_TIDS]; |
| 490 | struct carl9170_ba_stats stats[IEEE80211_NUM_TIDS]; |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 491 | }; |
| 492 | |
| 493 | struct carl9170_tx_info { |
| 494 | unsigned long timeout; |
| 495 | struct ar9170 *ar; |
| 496 | struct kref ref; |
| 497 | }; |
| 498 | |
| 499 | #define CHK_DEV_STATE(a, s) (((struct ar9170 *)a)->state >= (s)) |
| 500 | #define IS_INITIALIZED(a) (CHK_DEV_STATE(a, CARL9170_STOPPED)) |
| 501 | #define IS_ACCEPTING_CMD(a) (CHK_DEV_STATE(a, CARL9170_IDLE)) |
| 502 | #define IS_STARTED(a) (CHK_DEV_STATE(a, CARL9170_STARTED)) |
| 503 | |
| 504 | static inline void __carl9170_set_state(struct ar9170 *ar, |
| 505 | enum carl9170_device_state newstate) |
| 506 | { |
| 507 | ar->state = newstate; |
| 508 | } |
| 509 | |
| 510 | static inline void carl9170_set_state(struct ar9170 *ar, |
| 511 | enum carl9170_device_state newstate) |
| 512 | { |
| 513 | unsigned long flags; |
| 514 | |
| 515 | spin_lock_irqsave(&ar->state_lock, flags); |
| 516 | __carl9170_set_state(ar, newstate); |
| 517 | spin_unlock_irqrestore(&ar->state_lock, flags); |
| 518 | } |
| 519 | |
| 520 | static inline void carl9170_set_state_when(struct ar9170 *ar, |
| 521 | enum carl9170_device_state min, enum carl9170_device_state newstate) |
| 522 | { |
| 523 | unsigned long flags; |
| 524 | |
| 525 | spin_lock_irqsave(&ar->state_lock, flags); |
| 526 | if (CHK_DEV_STATE(ar, min)) |
| 527 | __carl9170_set_state(ar, newstate); |
| 528 | spin_unlock_irqrestore(&ar->state_lock, flags); |
| 529 | } |
| 530 | |
| 531 | /* exported interface */ |
| 532 | void *carl9170_alloc(size_t priv_size); |
| 533 | int carl9170_register(struct ar9170 *ar); |
| 534 | void carl9170_unregister(struct ar9170 *ar); |
| 535 | void carl9170_free(struct ar9170 *ar); |
| 536 | void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r); |
| 537 | void carl9170_ps_check(struct ar9170 *ar); |
| 538 | |
| 539 | /* USB back-end */ |
| 540 | int carl9170_usb_open(struct ar9170 *ar); |
| 541 | void carl9170_usb_stop(struct ar9170 *ar); |
| 542 | void carl9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb); |
| 543 | void carl9170_usb_handle_tx_err(struct ar9170 *ar); |
| 544 | int carl9170_exec_cmd(struct ar9170 *ar, const enum carl9170_cmd_oids, |
| 545 | u32 plen, void *payload, u32 rlen, void *resp); |
| 546 | int __carl9170_exec_cmd(struct ar9170 *ar, struct carl9170_cmd *cmd, |
| 547 | const bool free_buf); |
| 548 | int carl9170_usb_restart(struct ar9170 *ar); |
| 549 | void carl9170_usb_reset(struct ar9170 *ar); |
| 550 | |
| 551 | /* MAC */ |
| 552 | int carl9170_init_mac(struct ar9170 *ar); |
| 553 | int carl9170_set_qos(struct ar9170 *ar); |
| 554 | int carl9170_update_multicast(struct ar9170 *ar, const u64 mc_hast); |
| 555 | int carl9170_mod_virtual_mac(struct ar9170 *ar, const unsigned int id, |
| 556 | const u8 *mac); |
| 557 | int carl9170_set_operating_mode(struct ar9170 *ar); |
| 558 | int carl9170_set_beacon_timers(struct ar9170 *ar); |
| 559 | int carl9170_set_dyn_sifs_ack(struct ar9170 *ar); |
| 560 | int carl9170_set_rts_cts_rate(struct ar9170 *ar); |
| 561 | int carl9170_set_ampdu_settings(struct ar9170 *ar); |
| 562 | int carl9170_set_slot_time(struct ar9170 *ar); |
| 563 | int carl9170_set_mac_rates(struct ar9170 *ar); |
| 564 | int carl9170_set_hwretry_limit(struct ar9170 *ar, const u32 max_retry); |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 565 | int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac, |
| 566 | const u8 ktype, const u8 keyidx, const u8 *keydata, const int keylen); |
| 567 | int carl9170_disable_key(struct ar9170 *ar, const u8 id); |
Christian Lamparter | 67e43de | 2012-01-21 16:59:10 +0100 | [diff] [blame] | 568 | int carl9170_set_mac_tpc(struct ar9170 *ar, struct ieee80211_channel *channel); |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 569 | |
| 570 | /* RX */ |
| 571 | void carl9170_rx(struct ar9170 *ar, void *buf, unsigned int len); |
| 572 | void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len); |
| 573 | |
| 574 | /* TX */ |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 575 | void carl9170_op_tx(struct ieee80211_hw *hw, |
| 576 | struct ieee80211_tx_control *control, |
| 577 | struct sk_buff *skb); |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 578 | void carl9170_tx_janitor(struct work_struct *work); |
| 579 | void carl9170_tx_process_status(struct ar9170 *ar, |
| 580 | const struct carl9170_rsp *cmd); |
| 581 | void carl9170_tx_status(struct ar9170 *ar, struct sk_buff *skb, |
| 582 | const bool success); |
| 583 | void carl9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb); |
| 584 | void carl9170_tx_drop(struct ar9170 *ar, struct sk_buff *skb); |
| 585 | void carl9170_tx_scheduler(struct ar9170 *ar); |
| 586 | void carl9170_tx_get_skb(struct sk_buff *skb); |
| 587 | int carl9170_tx_put_skb(struct sk_buff *skb); |
Christian Lamparter | 943c339 | 2011-07-16 17:25:14 +0200 | [diff] [blame] | 588 | int carl9170_update_beacon(struct ar9170 *ar, const bool submit); |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 589 | |
| 590 | /* LEDs */ |
| 591 | #ifdef CONFIG_CARL9170_LEDS |
| 592 | int carl9170_led_register(struct ar9170 *ar); |
| 593 | void carl9170_led_unregister(struct ar9170 *ar); |
| 594 | #endif /* CONFIG_CARL9170_LEDS */ |
| 595 | int carl9170_led_init(struct ar9170 *ar); |
| 596 | int carl9170_led_set_state(struct ar9170 *ar, const u32 led_state); |
| 597 | |
| 598 | /* PHY / RF */ |
| 599 | int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, |
Christian Lamparter | 56771e5 | 2013-03-25 17:15:17 +0100 | [diff] [blame] | 600 | enum nl80211_channel_type bw); |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 601 | int carl9170_get_noisefloor(struct ar9170 *ar); |
| 602 | |
| 603 | /* FW */ |
| 604 | int carl9170_parse_firmware(struct ar9170 *ar); |
Christian Lamparter | fe8ee9a | 2010-09-06 00:48:55 +0200 | [diff] [blame] | 605 | |
| 606 | extern struct ieee80211_rate __carl9170_ratetable[]; |
| 607 | extern int modparam_noht; |
| 608 | |
| 609 | static inline struct ar9170 *carl9170_get_priv(struct carl9170_vif *carl_vif) |
| 610 | { |
| 611 | return container_of(carl_vif, struct ar9170, |
| 612 | vif_priv[carl_vif->id]); |
| 613 | } |
| 614 | |
| 615 | static inline struct ieee80211_hdr *carl9170_get_hdr(struct sk_buff *skb) |
| 616 | { |
| 617 | return (void *)((struct _carl9170_tx_superframe *) |
| 618 | skb->data)->frame_data; |
| 619 | } |
| 620 | |
| 621 | static inline u16 get_seq_h(struct ieee80211_hdr *hdr) |
| 622 | { |
| 623 | return le16_to_cpu(hdr->seq_ctrl) >> 4; |
| 624 | } |
| 625 | |
| 626 | static inline u16 carl9170_get_seq(struct sk_buff *skb) |
| 627 | { |
| 628 | return get_seq_h(carl9170_get_hdr(skb)); |
| 629 | } |
| 630 | |
| 631 | static inline u16 get_tid_h(struct ieee80211_hdr *hdr) |
| 632 | { |
| 633 | return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK; |
| 634 | } |
| 635 | |
| 636 | static inline u16 carl9170_get_tid(struct sk_buff *skb) |
| 637 | { |
| 638 | return get_tid_h(carl9170_get_hdr(skb)); |
| 639 | } |
| 640 | |
| 641 | static inline struct ieee80211_vif * |
| 642 | carl9170_get_vif(struct carl9170_vif_info *priv) |
| 643 | { |
| 644 | return container_of((void *)priv, struct ieee80211_vif, drv_priv); |
| 645 | } |
| 646 | |
| 647 | /* Protected by ar->mutex or RCU */ |
| 648 | static inline struct ieee80211_vif *carl9170_get_main_vif(struct ar9170 *ar) |
| 649 | { |
| 650 | struct carl9170_vif_info *cvif; |
| 651 | |
| 652 | list_for_each_entry_rcu(cvif, &ar->vif_list, list) { |
| 653 | if (cvif->active) |
| 654 | return carl9170_get_vif(cvif); |
| 655 | } |
| 656 | |
| 657 | return NULL; |
| 658 | } |
| 659 | |
| 660 | static inline bool is_main_vif(struct ar9170 *ar, struct ieee80211_vif *vif) |
| 661 | { |
| 662 | bool ret; |
| 663 | |
| 664 | rcu_read_lock(); |
| 665 | ret = (carl9170_get_main_vif(ar) == vif); |
| 666 | rcu_read_unlock(); |
| 667 | return ret; |
| 668 | } |
| 669 | |
| 670 | #endif /* __CARL9170_H */ |