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48f20d35 EG |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
4e318262 | 8 | * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved. |
48f20d35 EG |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * 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; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
25 | * in the file called LICENSE.GPL. | |
26 | * | |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
4e318262 | 33 | * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved. |
48f20d35 EG |
34 | * All rights reserved. |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in | |
44 | * the documentation and/or other materials provided with the | |
45 | * distribution. | |
46 | * * Neither the name Intel Corporation nor the names of its | |
47 | * contributors may be used to endorse or promote products derived | |
48 | * from this software without specific prior written permission. | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | #ifndef __iwl_shared_h__ | |
64 | #define __iwl_shared_h__ | |
65 | ||
a72b8b08 EG |
66 | #include <linux/types.h> |
67 | #include <linux/spinlock.h> | |
68 | #include <linux/mutex.h> | |
69 | #include <linux/gfp.h> | |
522376d2 | 70 | #include <linux/mm.h> /* for page_address */ |
ba562f71 | 71 | #include <net/mac80211.h> |
a72b8b08 | 72 | |
5f85a789 EG |
73 | #include "iwl-commands.h" |
74 | ||
21023e26 EG |
75 | /** |
76 | * DOC: shared area - role and goal | |
77 | * | |
78 | * The shared area contains all the data exported by the upper layer to the | |
79 | * other layers. Since the bus and transport layer shouldn't dereference | |
80 | * iwl_priv, all the data needed by the upper layer and the transport / bus | |
81 | * layer must be here. | |
82 | * The shared area also holds pointer to all the other layers. This allows a | |
83 | * layer to call a function from another layer. | |
84 | * | |
85 | * NOTE: All the layers hold a pointer to the shared area which must be shrd. | |
86 | * A few macros assume that (_m)->shrd points to the shared area no matter | |
87 | * what _m is. | |
88 | * | |
89 | * gets notifications about enumeration, suspend, resume. | |
90 | * For the moment, the bus layer is not a linux kernel module as itself, and | |
91 | * the module_init function of the driver must call the bus specific | |
92 | * registration functions. These functions are listed at the end of this file. | |
93 | * For the moment, there is only one implementation of this interface: PCI-e. | |
94 | * This implementation is iwl-pci.c | |
95 | */ | |
e6bb4c9c | 96 | |
cac988a6 | 97 | struct iwl_bus; |
48f20d35 | 98 | struct iwl_priv; |
ae6130fc | 99 | struct iwl_trans; |
d6189124 | 100 | struct iwl_sensitivity_ranges; |
e6bb4c9c | 101 | struct iwl_trans_ops; |
48f20d35 | 102 | |
3c607d27 | 103 | #define DRV_NAME "iwlwifi" |
332a4bad | 104 | #define IWLWIFI_VERSION "in-tree:" |
4e318262 | 105 | #define DRV_COPYRIGHT "Copyright(c) 2003-2012 Intel Corporation" |
332a4bad EG |
106 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
107 | ||
48f20d35 EG |
108 | extern struct iwl_mod_params iwlagn_mod_params; |
109 | ||
7428994d JB |
110 | #define IWL_DISABLE_HT_ALL BIT(0) |
111 | #define IWL_DISABLE_HT_TXAGG BIT(1) | |
112 | #define IWL_DISABLE_HT_RXAGG BIT(2) | |
113 | ||
e4ef84d9 WYG |
114 | /** |
115 | * struct iwl_mod_params | |
21023e26 EG |
116 | * |
117 | * Holds the module parameters | |
118 | * | |
e4ef84d9 WYG |
119 | * @sw_crypto: using hardware encryption, default = 0 |
120 | * @num_of_queues: number of tx queue, HW dependent | |
7428994d JB |
121 | * @disable_11n: disable 11n capabilities, default = 0, |
122 | * use IWL_DISABLE_HT_* constants | |
e4ef84d9 WYG |
123 | * @amsdu_size_8K: enable 8K amsdu size, default = 1 |
124 | * @antenna: both antennas (use diversity), default = 0 | |
125 | * @restart_fw: restart firmware, default = 1 | |
126 | * @plcp_check: enable plcp health check, default = true | |
127 | * @ack_check: disable ack health check, default = false | |
9995ffe5 | 128 | * @wd_disable: enable stuck queue check, default = 0 |
e4ef84d9 WYG |
129 | * @bt_coex_active: enable bt coex, default = true |
130 | * @led_mode: system default, default = 0 | |
131 | * @no_sleep_autoadjust: disable autoadjust, default = true | |
132 | * @power_save: disable power save, default = false | |
133 | * @power_level: power level, default = 1 | |
134 | * @debug_level: levels are IWL_DL_* | |
135 | * @ant_coupling: antenna coupling in dB, default = 0 | |
136 | * @bt_ch_announce: BT channel inhibition, default = enable | |
137 | * @wanted_ucode_alternative: ucode alternative to use, default = 1 | |
138 | * @auto_agg: enable agg. without check, default = true | |
139 | */ | |
48f20d35 | 140 | struct iwl_mod_params { |
e4ef84d9 WYG |
141 | int sw_crypto; |
142 | int num_of_queues; | |
7428994d | 143 | unsigned int disable_11n; |
e4ef84d9 WYG |
144 | int amsdu_size_8K; |
145 | int antenna; | |
146 | int restart_fw; | |
147 | bool plcp_check; | |
148 | bool ack_check; | |
9995ffe5 | 149 | int wd_disable; |
e4ef84d9 WYG |
150 | bool bt_coex_active; |
151 | int led_mode; | |
152 | bool no_sleep_autoadjust; | |
153 | bool power_save; | |
154 | int power_level; | |
155 | u32 debug_level; | |
48f20d35 | 156 | int ant_coupling; |
e4ef84d9 | 157 | bool bt_ch_announce; |
48f20d35 | 158 | int wanted_ucode_alternative; |
e4ef84d9 | 159 | bool auto_agg; |
48f20d35 EG |
160 | }; |
161 | ||
d6189124 EG |
162 | /** |
163 | * struct iwl_hw_params | |
21023e26 EG |
164 | * |
165 | * Holds the module parameters | |
166 | * | |
d6189124 | 167 | * @max_txq_num: Max # Tx queues supported |
fd656935 | 168 | * @num_ampdu_queues: num of ampdu queues |
21023e26 EG |
169 | * @tx_chains_num: Number of TX chains |
170 | * @rx_chains_num: Number of RX chains | |
171 | * @valid_tx_ant: usable antennas for TX | |
172 | * @valid_rx_ant: usable antennas for RX | |
21023e26 | 173 | * @ht40_channel: is 40MHz width possible: BIT(IEEE80211_BAND_XXX) |
21023e26 | 174 | * @sku: sku read from EEPROM |
fd656935 | 175 | * @rx_page_order: Rx buffer page order |
21023e26 EG |
176 | * @ct_kill_threshold: temperature threshold - in hw dependent unit |
177 | * @ct_kill_exit_threshold: when to reeable the device - in hw dependent unit | |
178 | * relevant for 1000, 6000 and up | |
f22be624 | 179 | * @wd_timeout: TX queues watchdog timeout |
d6189124 EG |
180 | * @struct iwl_sensitivity_ranges: range of sensitivity values |
181 | */ | |
182 | struct iwl_hw_params { | |
fd656935 EG |
183 | u8 max_txq_num; |
184 | u8 num_ampdu_queues; | |
d6189124 EG |
185 | u8 tx_chains_num; |
186 | u8 rx_chains_num; | |
187 | u8 valid_tx_ant; | |
188 | u8 valid_rx_ant; | |
d6189124 | 189 | u8 ht40_channel; |
fd656935 | 190 | bool shadow_reg_enable; |
fd656935 EG |
191 | u16 sku; |
192 | u32 rx_page_order; | |
21023e26 EG |
193 | u32 ct_kill_threshold; |
194 | u32 ct_kill_exit_threshold; | |
f22be624 EG |
195 | unsigned int wd_timeout; |
196 | ||
d6189124 EG |
197 | const struct iwl_sensitivity_ranges *sens; |
198 | }; | |
199 | ||
a96b724d DF |
200 | /** |
201 | * enum iwl_ucode_type | |
202 | * | |
203 | * The type of ucode currently loaded on the hardware. | |
204 | * | |
205 | * @IWL_UCODE_NONE: No ucode loaded | |
206 | * @IWL_UCODE_REGULAR: Normal runtime ucode | |
207 | * @IWL_UCODE_INIT: Initial ucode | |
208 | * @IWL_UCODE_WOWLAN: Wake on Wireless enabled ucode | |
209 | */ | |
210 | enum iwl_ucode_type { | |
211 | IWL_UCODE_NONE, | |
212 | IWL_UCODE_REGULAR, | |
213 | IWL_UCODE_INIT, | |
214 | IWL_UCODE_WOWLAN, | |
215 | }; | |
216 | ||
79e3b16b DF |
217 | /** |
218 | * struct iwl_notification_wait - notification wait entry | |
219 | * @list: list head for global list | |
220 | * @fn: function called with the notification | |
221 | * @cmd: command ID | |
222 | * | |
223 | * This structure is not used directly, to wait for a | |
224 | * notification declare it on the stack, and call | |
225 | * iwlagn_init_notification_wait() with appropriate | |
226 | * parameters. Then do whatever will cause the ucode | |
227 | * to notify the driver, and to wait for that then | |
228 | * call iwlagn_wait_notification(). | |
229 | * | |
230 | * Each notification is one-shot. If at some point we | |
231 | * need to support multi-shot notifications (which | |
232 | * can't be allocated on the stack) we need to modify | |
233 | * the code for them. | |
234 | */ | |
235 | struct iwl_notification_wait { | |
236 | struct list_head list; | |
237 | ||
ae6130fc | 238 | void (*fn)(struct iwl_trans *trans, struct iwl_rx_packet *pkt, |
79e3b16b DF |
239 | void *data); |
240 | void *fn_data; | |
241 | ||
242 | u8 cmd; | |
243 | bool triggered, aborted; | |
244 | }; | |
245 | ||
38622419 DF |
246 | /** |
247 | * enum iwl_pa_type - Power Amplifier type | |
248 | * @IWL_PA_SYSTEM: based on uCode configuration | |
249 | * @IWL_PA_INTERNAL: use Internal only | |
250 | */ | |
251 | enum iwl_pa_type { | |
252 | IWL_PA_SYSTEM = 0, | |
253 | IWL_PA_INTERNAL = 1, | |
254 | }; | |
255 | ||
256 | /* | |
257 | * LED mode | |
258 | * IWL_LED_DEFAULT: use device default | |
259 | * IWL_LED_RF_STATE: turn LED on/off based on RF state | |
260 | * LED ON = RF ON | |
261 | * LED OFF = RF OFF | |
262 | * IWL_LED_BLINK: adjust led blink rate based on blink table | |
42602dd4 | 263 | * IWL_LED_DISABLE: led disabled |
38622419 DF |
264 | */ |
265 | enum iwl_led_mode { | |
266 | IWL_LED_DEFAULT, | |
267 | IWL_LED_RF_STATE, | |
268 | IWL_LED_BLINK, | |
42602dd4 | 269 | IWL_LED_DISABLE, |
38622419 DF |
270 | }; |
271 | ||
272 | /** | |
273 | * struct iwl_cfg | |
274 | * @name: Offical name of the device | |
275 | * @fw_name_pre: Firmware filename prefix. The api version and extension | |
276 | * (.ucode) will be added to filename before loading from disk. The | |
277 | * filename is constructed as fw_name_pre<api>.ucode. | |
278 | * @ucode_api_max: Highest version of uCode API supported by driver. | |
279 | * @ucode_api_ok: oldest version of the uCode API that is OK to load | |
280 | * without a warning, for use in transitions | |
281 | * @ucode_api_min: Lowest version of uCode API supported by driver. | |
dae66d0d EG |
282 | * @max_inst_size: The maximal length of the fw inst section |
283 | * @max_data_size: The maximal length of the fw data section | |
38622419 DF |
284 | * @valid_tx_ant: valid transmit antenna |
285 | * @valid_rx_ant: valid receive antenna | |
286 | * @sku: sku information from EEPROM | |
287 | * @eeprom_ver: EEPROM version | |
288 | * @eeprom_calib_ver: EEPROM calibration version | |
289 | * @lib: pointer to the lib ops | |
290 | * @additional_nic_config: additional nic configuration | |
291 | * @base_params: pointer to basic parameters | |
292 | * @ht_params: point to ht patameters | |
293 | * @bt_params: pointer to bt parameters | |
294 | * @pa_type: used by 6000 series only to identify the type of Power Amplifier | |
295 | * @need_temp_offset_calib: need to perform temperature offset calibration | |
296 | * @no_xtal_calib: some devices do not need crystal calibration data, | |
297 | * don't send it to those | |
298 | * @scan_rx_antennas: available antenna for scan operation | |
299 | * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off) | |
300 | * @adv_pm: advance power management | |
301 | * @rx_with_siso_diversity: 1x1 device with rx antenna diversity | |
302 | * @internal_wimax_coex: internal wifi/wimax combo device | |
303 | * @iq_invert: I/Q inversion | |
304 | * @temp_offset_v2: support v2 of temperature offset calibration | |
305 | * | |
306 | * We enable the driver to be backward compatible wrt API version. The | |
307 | * driver specifies which APIs it supports (with @ucode_api_max being the | |
308 | * highest and @ucode_api_min the lowest). Firmware will only be loaded if | |
309 | * it has a supported API version. | |
310 | * | |
311 | * The ideal usage of this infrastructure is to treat a new ucode API | |
312 | * release as a new hardware revision. | |
313 | */ | |
314 | struct iwl_cfg { | |
315 | /* params specific to an individual device within a device family */ | |
316 | const char *name; | |
317 | const char *fw_name_pre; | |
318 | const unsigned int ucode_api_max; | |
319 | const unsigned int ucode_api_ok; | |
320 | const unsigned int ucode_api_min; | |
dae66d0d EG |
321 | const u32 max_data_size; |
322 | const u32 max_inst_size; | |
38622419 DF |
323 | u8 valid_tx_ant; |
324 | u8 valid_rx_ant; | |
325 | u16 sku; | |
326 | u16 eeprom_ver; | |
327 | u16 eeprom_calib_ver; | |
328 | const struct iwl_lib_ops *lib; | |
329 | void (*additional_nic_config)(struct iwl_priv *priv); | |
330 | /* params not likely to change within a device family */ | |
331 | struct iwl_base_params *base_params; | |
332 | /* params likely to change within a device family */ | |
333 | struct iwl_ht_params *ht_params; | |
334 | struct iwl_bt_params *bt_params; | |
335 | enum iwl_pa_type pa_type; /* if used set to IWL_PA_SYSTEM */ | |
336 | const bool need_temp_offset_calib; /* if used set to true */ | |
337 | const bool no_xtal_calib; | |
338 | u8 scan_rx_antennas[IEEE80211_NUM_BANDS]; | |
339 | enum iwl_led_mode led_mode; | |
340 | const bool adv_pm; | |
341 | const bool rx_with_siso_diversity; | |
342 | const bool internal_wimax_coex; | |
343 | const bool iq_invert; | |
344 | const bool temp_offset_v2; | |
345 | }; | |
346 | ||
cac988a6 EG |
347 | /** |
348 | * struct iwl_shared - shared fields for all the layers of the driver | |
349 | * | |
8f470ce3 EG |
350 | * @dbg_level_dev: dbg level set per device. Prevails on |
351 | * iwlagn_mod_params.debug_level if set (!= 0) | |
fd656935 | 352 | * @ucode_owner: IWL_OWNERSHIP_* |
cefeaa5f | 353 | * @cmd_queue: command queue number |
63013ae3 | 354 | * @status: STATUS_* |
23fd7b02 | 355 | * @wowlan: are we running wowlan uCode |
7a10e3e4 | 356 | * @valid_contexts: microcode/device supports multiple contexts |
cac988a6 | 357 | * @bus: pointer to the bus layer data |
38622419 | 358 | * @cfg: see struct iwl_cfg |
cac988a6 | 359 | * @priv: pointer to the upper layer data |
23fd7b02 | 360 | * @trans: pointer to the transport layer data |
b1c23d9e | 361 | * @nic: pointer to the nic data |
d6189124 | 362 | * @hw_params: see struct iwl_hw_params |
10b15e6f | 363 | * @lock: protect general shared data |
f39c95e8 EG |
364 | * @sta_lock: protects the station table. |
365 | * If lock and sta_lock are needed, lock must be acquired first. | |
6ac2f839 | 366 | * @mutex: |
23fd7b02 | 367 | * @wait_command_queue: the wait_queue for SYNC host command nad uCode load |
38622419 | 368 | * @eeprom: pointer to the eeprom/OTP image |
79e3b16b DF |
369 | * @ucode_type: indicator of loaded ucode image |
370 | * @notif_waits: things waiting for notification | |
371 | * @notif_wait_lock: lock protecting notification | |
372 | * @notif_waitq: head of notification wait queue | |
ae6130fc | 373 | * @device_pointers: pointers to ucode event tables |
cac988a6 EG |
374 | */ |
375 | struct iwl_shared { | |
8f470ce3 EG |
376 | #ifdef CONFIG_IWLWIFI_DEBUG |
377 | u32 dbg_level_dev; | |
378 | #endif /* CONFIG_IWLWIFI_DEBUG */ | |
379 | ||
fd656935 EG |
380 | #define IWL_OWNERSHIP_DRIVER 0 |
381 | #define IWL_OWNERSHIP_TM 1 | |
382 | u8 ucode_owner; | |
cefeaa5f | 383 | u8 cmd_queue; |
63013ae3 | 384 | unsigned long status; |
57210f7c | 385 | bool wowlan; |
7a10e3e4 | 386 | u8 valid_contexts; |
cefeaa5f | 387 | |
cac988a6 | 388 | struct iwl_bus *bus; |
38622419 | 389 | struct iwl_cfg *cfg; |
cac988a6 | 390 | struct iwl_priv *priv; |
e6bb4c9c | 391 | struct iwl_trans *trans; |
b1c23d9e | 392 | struct iwl_nic *nic; |
d6189124 | 393 | struct iwl_hw_params hw_params; |
74e28e44 | 394 | |
10b15e6f | 395 | spinlock_t lock; |
f39c95e8 | 396 | spinlock_t sta_lock; |
6ac2f839 | 397 | struct mutex mutex; |
5f85a789 | 398 | |
3e10caeb | 399 | wait_queue_head_t wait_command_queue; |
a96b724d | 400 | |
ab36eab2 DF |
401 | /* eeprom -- this is in the card's little endian byte order */ |
402 | u8 *eeprom; | |
403 | ||
a96b724d DF |
404 | /* ucode related variables */ |
405 | enum iwl_ucode_type ucode_type; | |
79e3b16b DF |
406 | |
407 | /* notification wait support */ | |
408 | struct list_head notif_waits; | |
409 | spinlock_t notif_wait_lock; | |
410 | wait_queue_head_t notif_waitq; | |
ae6130fc DF |
411 | |
412 | struct { | |
413 | u32 error_event_table; | |
414 | u32 log_event_table; | |
415 | } device_pointers; | |
416 | ||
cac988a6 EG |
417 | }; |
418 | ||
419 | /*Whatever _m is (iwl_trans, iwl_priv, iwl_bus, these macros will work */ | |
420 | #define priv(_m) ((_m)->shrd->priv) | |
38622419 | 421 | #define cfg(_m) ((_m)->shrd->cfg) |
cac988a6 | 422 | #define bus(_m) ((_m)->shrd->bus) |
b1c23d9e | 423 | #define nic(_m) ((_m)->shrd->nic) |
e6bb4c9c | 424 | #define trans(_m) ((_m)->shrd->trans) |
d6189124 | 425 | #define hw_params(_m) ((_m)->shrd->hw_params) |
cac988a6 | 426 | |
8f470ce3 EG |
427 | #ifdef CONFIG_IWLWIFI_DEBUG |
428 | /* | |
429 | * iwl_get_debug_level: Return active debug level for device | |
430 | * | |
431 | * Using sysfs it is possible to set per device debug level. This debug | |
432 | * level will be used if set, otherwise the global debug level which can be | |
433 | * set via module parameter is used. | |
434 | */ | |
435 | static inline u32 iwl_get_debug_level(struct iwl_shared *shrd) | |
436 | { | |
437 | if (shrd->dbg_level_dev) | |
438 | return shrd->dbg_level_dev; | |
439 | else | |
440 | return iwlagn_mod_params.debug_level; | |
441 | } | |
442 | #else | |
443 | static inline u32 iwl_get_debug_level(struct iwl_shared *shrd) | |
444 | { | |
445 | return iwlagn_mod_params.debug_level; | |
446 | } | |
447 | #endif | |
448 | ||
790428b6 EG |
449 | static inline void iwl_free_pages(struct iwl_shared *shrd, unsigned long page) |
450 | { | |
451 | free_pages(page, shrd->hw_params.rx_page_order); | |
452 | } | |
453 | ||
522376d2 EG |
454 | /** |
455 | * iwl_queue_inc_wrap - increment queue index, wrap back to beginning | |
456 | * @index -- current index | |
457 | * @n_bd -- total number of entries in queue (must be power of 2) | |
458 | */ | |
459 | static inline int iwl_queue_inc_wrap(int index, int n_bd) | |
460 | { | |
461 | return ++index & (n_bd - 1); | |
462 | } | |
463 | ||
464 | /** | |
465 | * iwl_queue_dec_wrap - decrement queue index, wrap back to end | |
466 | * @index -- current index | |
467 | * @n_bd -- total number of entries in queue (must be power of 2) | |
468 | */ | |
469 | static inline int iwl_queue_dec_wrap(int index, int n_bd) | |
470 | { | |
471 | return --index & (n_bd - 1); | |
472 | } | |
473 | ||
5a878bf6 EG |
474 | struct iwl_rx_mem_buffer { |
475 | dma_addr_t page_dma; | |
476 | struct page *page; | |
477 | struct list_head list; | |
478 | }; | |
479 | ||
480 | #define rxb_addr(r) page_address(r->page) | |
481 | ||
ba562f71 EG |
482 | /* |
483 | * mac80211 queues, ACs, hardware queues, FIFOs. | |
484 | * | |
485 | * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues | |
486 | * | |
487 | * Mac80211 uses the following numbers, which we get as from it | |
488 | * by way of skb_get_queue_mapping(skb): | |
489 | * | |
490 | * VO 0 | |
491 | * VI 1 | |
492 | * BE 2 | |
493 | * BK 3 | |
494 | * | |
495 | * | |
496 | * Regular (not A-MPDU) frames are put into hardware queues corresponding | |
497 | * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their | |
498 | * own queue per aggregation session (RA/TID combination), such queues are | |
499 | * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In | |
500 | * order to map frames to the right queue, we also need an AC->hw queue | |
501 | * mapping. This is implemented here. | |
502 | * | |
503 | * Due to the way hw queues are set up (by the hw specific modules like | |
504 | * iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity | |
505 | * mapping. | |
506 | */ | |
507 | ||
508 | static const u8 tid_to_ac[] = { | |
509 | IEEE80211_AC_BE, | |
510 | IEEE80211_AC_BK, | |
511 | IEEE80211_AC_BK, | |
512 | IEEE80211_AC_BE, | |
513 | IEEE80211_AC_VI, | |
514 | IEEE80211_AC_VI, | |
515 | IEEE80211_AC_VO, | |
516 | IEEE80211_AC_VO | |
517 | }; | |
518 | ||
288712a6 EG |
519 | static inline int get_ac_from_tid(u16 tid) |
520 | { | |
521 | if (likely(tid < ARRAY_SIZE(tid_to_ac))) | |
522 | return tid_to_ac[tid]; | |
523 | ||
524 | /* no support for TIDs 8-15 yet */ | |
525 | return -EINVAL; | |
526 | } | |
527 | ||
ba562f71 EG |
528 | enum iwl_rxon_context_id { |
529 | IWL_RXON_CTX_BSS, | |
530 | IWL_RXON_CTX_PAN, | |
531 | ||
532 | NUM_IWL_RXON_CTX | |
533 | }; | |
534 | ||
247c61d6 EG |
535 | struct iwl_device_cmd; |
536 | int __must_check iwl_rx_dispatch(struct iwl_priv *priv, | |
537 | struct iwl_rx_mem_buffer *rxb, | |
538 | struct iwl_device_cmd *cmd); | |
48f20d35 | 539 | |
522376d2 | 540 | int iwlagn_hw_valid_rtc_data_addr(u32 addr); |
3e10caeb | 541 | void iwl_set_hw_rfkill_state(struct iwl_priv *priv, bool state); |
7a10e3e4 | 542 | void iwl_nic_config(struct iwl_priv *priv); |
909e9b23 | 543 | void iwl_free_skb(struct iwl_priv *priv, struct sk_buff *skb); |
522376d2 EG |
544 | void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand); |
545 | const char *get_cmd_string(u8 cmd); | |
546 | bool iwl_check_for_ct_kill(struct iwl_priv *priv); | |
547 | ||
859cfb0a EG |
548 | void iwl_stop_sw_queue(struct iwl_priv *priv, u8 ac); |
549 | void iwl_wake_sw_queue(struct iwl_priv *priv, u8 ac); | |
550 | ||
79e3b16b DF |
551 | /* notification wait support */ |
552 | void iwl_abort_notification_waits(struct iwl_shared *shrd); | |
553 | void __acquires(wait_entry) | |
554 | iwl_init_notification_wait(struct iwl_shared *shrd, | |
555 | struct iwl_notification_wait *wait_entry, | |
556 | u8 cmd, | |
ae6130fc | 557 | void (*fn)(struct iwl_trans *trans, |
79e3b16b DF |
558 | struct iwl_rx_packet *pkt, |
559 | void *data), | |
560 | void *fn_data); | |
561 | int __must_check __releases(wait_entry) | |
562 | iwl_wait_notification(struct iwl_shared *shrd, | |
563 | struct iwl_notification_wait *wait_entry, | |
564 | unsigned long timeout); | |
565 | void __releases(wait_entry) | |
566 | iwl_remove_notification(struct iwl_shared *shrd, | |
567 | struct iwl_notification_wait *wait_entry); | |
568 | ||
522376d2 EG |
569 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
570 | void iwl_reset_traffic_log(struct iwl_priv *priv); | |
571 | #endif /* CONFIG_IWLWIFI_DEBUGFS */ | |
572 | ||
573 | #ifdef CONFIG_IWLWIFI_DEBUG | |
14991a9d EG |
574 | void iwl_print_rx_config_cmd(struct iwl_priv *priv, |
575 | enum iwl_rxon_context_id ctxid); | |
522376d2 | 576 | #else |
14991a9d EG |
577 | static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv, |
578 | enum iwl_rxon_context_id ctxid) | |
522376d2 EG |
579 | { |
580 | } | |
581 | #endif | |
582 | ||
583 | #define IWL_CMD(x) case x: return #x | |
584 | #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo)))) | |
288712a6 | 585 | |
7a10e3e4 EG |
586 | #define IWL_TRAFFIC_ENTRIES (256) |
587 | #define IWL_TRAFFIC_ENTRY_SIZE (64) | |
588 | ||
845a9c0d EG |
589 | /***************************************************** |
590 | * DRIVER STATUS FUNCTIONS | |
591 | ******************************************************/ | |
592 | #define STATUS_HCMD_ACTIVE 0 /* host command in progress */ | |
593 | /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */ | |
594 | #define STATUS_INT_ENABLED 2 | |
595 | #define STATUS_RF_KILL_HW 3 | |
596 | #define STATUS_CT_KILL 4 | |
597 | #define STATUS_INIT 5 | |
598 | #define STATUS_ALIVE 6 | |
599 | #define STATUS_READY 7 | |
600 | #define STATUS_TEMPERATURE 8 | |
601 | #define STATUS_GEO_CONFIGURED 9 | |
602 | #define STATUS_EXIT_PENDING 10 | |
603 | #define STATUS_STATISTICS 12 | |
604 | #define STATUS_SCANNING 13 | |
605 | #define STATUS_SCAN_ABORTING 14 | |
606 | #define STATUS_SCAN_HW 15 | |
607 | #define STATUS_POWER_PMI 16 | |
608 | #define STATUS_FW_ERROR 17 | |
609 | #define STATUS_DEVICE_ENABLED 18 | |
610 | #define STATUS_CHANNEL_SWITCH_PENDING 19 | |
84b1bec6 | 611 | #define STATUS_SCAN_COMPLETE 20 |
845a9c0d EG |
612 | |
613 | static inline int iwl_is_ready(struct iwl_shared *shrd) | |
614 | { | |
615 | /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are | |
616 | * set but EXIT_PENDING is not */ | |
617 | return test_bit(STATUS_READY, &shrd->status) && | |
618 | test_bit(STATUS_GEO_CONFIGURED, &shrd->status) && | |
619 | !test_bit(STATUS_EXIT_PENDING, &shrd->status); | |
620 | } | |
621 | ||
622 | static inline int iwl_is_alive(struct iwl_shared *shrd) | |
623 | { | |
624 | return test_bit(STATUS_ALIVE, &shrd->status); | |
625 | } | |
626 | ||
627 | static inline int iwl_is_init(struct iwl_shared *shrd) | |
628 | { | |
629 | return test_bit(STATUS_INIT, &shrd->status); | |
630 | } | |
631 | ||
632 | static inline int iwl_is_rfkill_hw(struct iwl_shared *shrd) | |
633 | { | |
634 | return test_bit(STATUS_RF_KILL_HW, &shrd->status); | |
635 | } | |
636 | ||
637 | static inline int iwl_is_rfkill(struct iwl_shared *shrd) | |
638 | { | |
639 | return iwl_is_rfkill_hw(shrd); | |
640 | } | |
641 | ||
642 | static inline int iwl_is_ctkill(struct iwl_shared *shrd) | |
643 | { | |
644 | return test_bit(STATUS_CT_KILL, &shrd->status); | |
645 | } | |
646 | ||
647 | static inline int iwl_is_ready_rf(struct iwl_shared *shrd) | |
648 | { | |
649 | if (iwl_is_rfkill(shrd)) | |
650 | return 0; | |
651 | ||
652 | return iwl_is_ready(shrd); | |
653 | } | |
654 | ||
48f20d35 | 655 | #endif /* #__iwl_shared_h__ */ |