]>
Commit | Line | Data |
---|---|---|
b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
21 | * Contact Information: | |
22 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | *****************************************************************************/ | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/version.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/dma-mapping.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/skbuff.h> | |
35 | #include <linux/netdevice.h> | |
36 | #include <linux/wireless.h> | |
37 | #include <net/mac80211.h> | |
b481de9c | 38 | #include <linux/etherdevice.h> |
12342c47 | 39 | #include <asm/unaligned.h> |
b481de9c | 40 | |
6bc913bd | 41 | #include "iwl-eeprom.h" |
3e0d4cb1 | 42 | #include "iwl-dev.h" |
fee1247a | 43 | #include "iwl-core.h" |
3395f6e9 | 44 | #include "iwl-io.h" |
b481de9c | 45 | #include "iwl-helpers.h" |
f0832f13 | 46 | #include "iwl-calib.h" |
b481de9c | 47 | |
1ea87396 AK |
48 | /* module parameters */ |
49 | static struct iwl_mod_params iwl4965_mod_params = { | |
038669e4 | 50 | .num_of_queues = IWL49_NUM_QUEUES, |
1ea87396 AK |
51 | .enable_qos = 1, |
52 | .amsdu_size_8K = 1, | |
3a1081e8 | 53 | .restart_fw = 1, |
1ea87396 AK |
54 | /* the rest are 0 by default */ |
55 | }; | |
56 | ||
fe01b477 RR |
57 | #ifdef CONFIG_IWL4965_HT |
58 | ||
59 | static const u16 default_tid_to_tx_fifo[] = { | |
60 | IWL_TX_FIFO_AC1, | |
61 | IWL_TX_FIFO_AC0, | |
62 | IWL_TX_FIFO_AC0, | |
63 | IWL_TX_FIFO_AC1, | |
64 | IWL_TX_FIFO_AC2, | |
65 | IWL_TX_FIFO_AC2, | |
66 | IWL_TX_FIFO_AC3, | |
67 | IWL_TX_FIFO_AC3, | |
68 | IWL_TX_FIFO_NONE, | |
69 | IWL_TX_FIFO_NONE, | |
70 | IWL_TX_FIFO_NONE, | |
71 | IWL_TX_FIFO_NONE, | |
72 | IWL_TX_FIFO_NONE, | |
73 | IWL_TX_FIFO_NONE, | |
74 | IWL_TX_FIFO_NONE, | |
75 | IWL_TX_FIFO_NONE, | |
76 | IWL_TX_FIFO_AC3 | |
77 | }; | |
78 | ||
79 | #endif /*CONFIG_IWL4965_HT */ | |
80 | ||
57aab75a TW |
81 | /* check contents of special bootstrap uCode SRAM */ |
82 | static int iwl4965_verify_bsm(struct iwl_priv *priv) | |
83 | { | |
84 | __le32 *image = priv->ucode_boot.v_addr; | |
85 | u32 len = priv->ucode_boot.len; | |
86 | u32 reg; | |
87 | u32 val; | |
88 | ||
89 | IWL_DEBUG_INFO("Begin verify bsm\n"); | |
90 | ||
91 | /* verify BSM SRAM contents */ | |
92 | val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG); | |
93 | for (reg = BSM_SRAM_LOWER_BOUND; | |
94 | reg < BSM_SRAM_LOWER_BOUND + len; | |
95 | reg += sizeof(u32), image++) { | |
96 | val = iwl_read_prph(priv, reg); | |
97 | if (val != le32_to_cpu(*image)) { | |
98 | IWL_ERROR("BSM uCode verification failed at " | |
99 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", | |
100 | BSM_SRAM_LOWER_BOUND, | |
101 | reg - BSM_SRAM_LOWER_BOUND, len, | |
102 | val, le32_to_cpu(*image)); | |
103 | return -EIO; | |
104 | } | |
105 | } | |
106 | ||
107 | IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n"); | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | /** | |
113 | * iwl4965_load_bsm - Load bootstrap instructions | |
114 | * | |
115 | * BSM operation: | |
116 | * | |
117 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program | |
118 | * in special SRAM that does not power down during RFKILL. When powering back | |
119 | * up after power-saving sleeps (or during initial uCode load), the BSM loads | |
120 | * the bootstrap program into the on-board processor, and starts it. | |
121 | * | |
122 | * The bootstrap program loads (via DMA) instructions and data for a new | |
123 | * program from host DRAM locations indicated by the host driver in the | |
124 | * BSM_DRAM_* registers. Once the new program is loaded, it starts | |
125 | * automatically. | |
126 | * | |
127 | * When initializing the NIC, the host driver points the BSM to the | |
128 | * "initialize" uCode image. This uCode sets up some internal data, then | |
129 | * notifies host via "initialize alive" that it is complete. | |
130 | * | |
131 | * The host then replaces the BSM_DRAM_* pointer values to point to the | |
132 | * normal runtime uCode instructions and a backup uCode data cache buffer | |
133 | * (filled initially with starting data values for the on-board processor), | |
134 | * then triggers the "initialize" uCode to load and launch the runtime uCode, | |
135 | * which begins normal operation. | |
136 | * | |
137 | * When doing a power-save shutdown, runtime uCode saves data SRAM into | |
138 | * the backup data cache in DRAM before SRAM is powered down. | |
139 | * | |
140 | * When powering back up, the BSM loads the bootstrap program. This reloads | |
141 | * the runtime uCode instructions and the backup data cache into SRAM, | |
142 | * and re-launches the runtime uCode from where it left off. | |
143 | */ | |
144 | static int iwl4965_load_bsm(struct iwl_priv *priv) | |
145 | { | |
146 | __le32 *image = priv->ucode_boot.v_addr; | |
147 | u32 len = priv->ucode_boot.len; | |
148 | dma_addr_t pinst; | |
149 | dma_addr_t pdata; | |
150 | u32 inst_len; | |
151 | u32 data_len; | |
152 | int i; | |
153 | u32 done; | |
154 | u32 reg_offset; | |
155 | int ret; | |
156 | ||
157 | IWL_DEBUG_INFO("Begin load bsm\n"); | |
158 | ||
159 | /* make sure bootstrap program is no larger than BSM's SRAM size */ | |
160 | if (len > IWL_MAX_BSM_SIZE) | |
161 | return -EINVAL; | |
162 | ||
163 | /* Tell bootstrap uCode where to find the "Initialize" uCode | |
164 | * in host DRAM ... host DRAM physical address bits 35:4 for 4965. | |
165 | * NOTE: iwl4965_initialize_alive_start() will replace these values, | |
166 | * after the "initialize" uCode has run, to point to | |
167 | * runtime/protocol instructions and backup data cache. */ | |
168 | pinst = priv->ucode_init.p_addr >> 4; | |
169 | pdata = priv->ucode_init_data.p_addr >> 4; | |
170 | inst_len = priv->ucode_init.len; | |
171 | data_len = priv->ucode_init_data.len; | |
172 | ||
173 | ret = iwl_grab_nic_access(priv); | |
174 | if (ret) | |
175 | return ret; | |
176 | ||
177 | iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); | |
178 | iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
179 | iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); | |
180 | iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); | |
181 | ||
182 | /* Fill BSM memory with bootstrap instructions */ | |
183 | for (reg_offset = BSM_SRAM_LOWER_BOUND; | |
184 | reg_offset < BSM_SRAM_LOWER_BOUND + len; | |
185 | reg_offset += sizeof(u32), image++) | |
186 | _iwl_write_prph(priv, reg_offset, le32_to_cpu(*image)); | |
187 | ||
188 | ret = iwl4965_verify_bsm(priv); | |
189 | if (ret) { | |
190 | iwl_release_nic_access(priv); | |
191 | return ret; | |
192 | } | |
193 | ||
194 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ | |
195 | iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0); | |
196 | iwl_write_prph(priv, BSM_WR_MEM_DST_REG, RTC_INST_LOWER_BOUND); | |
197 | iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); | |
198 | ||
199 | /* Load bootstrap code into instruction SRAM now, | |
200 | * to prepare to load "initialize" uCode */ | |
201 | iwl_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START); | |
202 | ||
203 | /* Wait for load of bootstrap uCode to finish */ | |
204 | for (i = 0; i < 100; i++) { | |
205 | done = iwl_read_prph(priv, BSM_WR_CTRL_REG); | |
206 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) | |
207 | break; | |
208 | udelay(10); | |
209 | } | |
210 | if (i < 100) | |
211 | IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i); | |
212 | else { | |
213 | IWL_ERROR("BSM write did not complete!\n"); | |
214 | return -EIO; | |
215 | } | |
216 | ||
217 | /* Enable future boot loads whenever power management unit triggers it | |
218 | * (e.g. when powering back up after power-save shutdown) */ | |
219 | iwl_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN); | |
220 | ||
221 | iwl_release_nic_access(priv); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
f3ccc08c EG |
226 | /** |
227 | * iwl4965_set_ucode_ptrs - Set uCode address location | |
228 | * | |
229 | * Tell initialization uCode where to find runtime uCode. | |
230 | * | |
231 | * BSM registers initially contain pointers to initialization uCode. | |
232 | * We need to replace them to load runtime uCode inst and data, | |
233 | * and to save runtime data when powering down. | |
234 | */ | |
235 | static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv) | |
236 | { | |
237 | dma_addr_t pinst; | |
238 | dma_addr_t pdata; | |
239 | unsigned long flags; | |
240 | int ret = 0; | |
241 | ||
242 | /* bits 35:4 for 4965 */ | |
243 | pinst = priv->ucode_code.p_addr >> 4; | |
244 | pdata = priv->ucode_data_backup.p_addr >> 4; | |
245 | ||
246 | spin_lock_irqsave(&priv->lock, flags); | |
247 | ret = iwl_grab_nic_access(priv); | |
248 | if (ret) { | |
249 | spin_unlock_irqrestore(&priv->lock, flags); | |
250 | return ret; | |
251 | } | |
252 | ||
253 | /* Tell bootstrap uCode where to find image to load */ | |
254 | iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); | |
255 | iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
256 | iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
257 | priv->ucode_data.len); | |
258 | ||
259 | /* Inst bytecount must be last to set up, bit 31 signals uCode | |
260 | * that all new ptr/size info is in place */ | |
261 | iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, | |
262 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); | |
263 | iwl_release_nic_access(priv); | |
264 | ||
265 | spin_unlock_irqrestore(&priv->lock, flags); | |
266 | ||
267 | IWL_DEBUG_INFO("Runtime uCode pointers are set.\n"); | |
268 | ||
269 | return ret; | |
270 | } | |
271 | ||
272 | /** | |
273 | * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received | |
274 | * | |
275 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
276 | * | |
277 | * The 4965 "initialize" ALIVE reply contains calibration data for: | |
278 | * Voltage, temperature, and MIMO tx gain correction, now stored in priv | |
279 | * (3945 does not contain this data). | |
280 | * | |
281 | * Tell "initialize" uCode to go ahead and load the runtime uCode. | |
282 | */ | |
283 | static void iwl4965_init_alive_start(struct iwl_priv *priv) | |
284 | { | |
285 | /* Check alive response for "valid" sign from uCode */ | |
286 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
287 | /* We had an error bringing up the hardware, so take it | |
288 | * all the way back down so we can try again */ | |
289 | IWL_DEBUG_INFO("Initialize Alive failed.\n"); | |
290 | goto restart; | |
291 | } | |
292 | ||
293 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
294 | * This is a paranoid check, because we would not have gotten the | |
295 | * "initialize" alive if code weren't properly loaded. */ | |
296 | if (iwl_verify_ucode(priv)) { | |
297 | /* Runtime instruction load was bad; | |
298 | * take it all the way back down so we can try again */ | |
299 | IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); | |
300 | goto restart; | |
301 | } | |
302 | ||
303 | /* Calculate temperature */ | |
304 | priv->temperature = iwl4965_get_temperature(priv); | |
305 | ||
306 | /* Send pointers to protocol/runtime uCode image ... init code will | |
307 | * load and launch runtime uCode, which will send us another "Alive" | |
308 | * notification. */ | |
309 | IWL_DEBUG_INFO("Initialization Alive received.\n"); | |
310 | if (iwl4965_set_ucode_ptrs(priv)) { | |
311 | /* Runtime instruction load won't happen; | |
312 | * take it all the way back down so we can try again */ | |
313 | IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n"); | |
314 | goto restart; | |
315 | } | |
316 | return; | |
317 | ||
318 | restart: | |
319 | queue_work(priv->workqueue, &priv->restart); | |
320 | } | |
321 | ||
b481de9c ZY |
322 | static int is_fat_channel(__le32 rxon_flags) |
323 | { | |
324 | return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) || | |
325 | (rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK); | |
326 | } | |
327 | ||
17744ff6 TW |
328 | int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags) |
329 | { | |
330 | int idx = 0; | |
331 | ||
332 | /* 4965 HT rate format */ | |
333 | if (rate_n_flags & RATE_MCS_HT_MSK) { | |
334 | idx = (rate_n_flags & 0xff); | |
335 | ||
fde0db31 GC |
336 | if (idx >= IWL_RATE_MIMO2_6M_PLCP) |
337 | idx = idx - IWL_RATE_MIMO2_6M_PLCP; | |
17744ff6 TW |
338 | |
339 | idx += IWL_FIRST_OFDM_RATE; | |
340 | /* skip 9M not supported in ht*/ | |
341 | if (idx >= IWL_RATE_9M_INDEX) | |
342 | idx += 1; | |
343 | if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) | |
344 | return idx; | |
345 | ||
346 | /* 4965 legacy rate format, search for match in table */ | |
347 | } else { | |
348 | for (idx = 0; idx < ARRAY_SIZE(iwl4965_rates); idx++) | |
349 | if (iwl4965_rates[idx].plcp == (rate_n_flags & 0xFF)) | |
350 | return idx; | |
351 | } | |
352 | ||
353 | return -1; | |
354 | } | |
355 | ||
4c424e4c RR |
356 | /** |
357 | * translate ucode response to mac80211 tx status control values | |
358 | */ | |
c79dd5b5 | 359 | void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, |
4c424e4c RR |
360 | struct ieee80211_tx_control *control) |
361 | { | |
362 | int rate_index; | |
363 | ||
364 | control->antenna_sel_tx = | |
fde0db31 | 365 | ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); |
4c424e4c RR |
366 | if (rate_n_flags & RATE_MCS_HT_MSK) |
367 | control->flags |= IEEE80211_TXCTL_OFDM_HT; | |
368 | if (rate_n_flags & RATE_MCS_GF_MSK) | |
369 | control->flags |= IEEE80211_TXCTL_GREEN_FIELD; | |
370 | if (rate_n_flags & RATE_MCS_FAT_MSK) | |
371 | control->flags |= IEEE80211_TXCTL_40_MHZ_WIDTH; | |
372 | if (rate_n_flags & RATE_MCS_DUP_MSK) | |
373 | control->flags |= IEEE80211_TXCTL_DUP_DATA; | |
374 | if (rate_n_flags & RATE_MCS_SGI_MSK) | |
375 | control->flags |= IEEE80211_TXCTL_SHORT_GI; | |
376 | /* since iwl4965_hwrate_to_plcp_idx is band indifferent, we always use | |
377 | * IEEE80211_BAND_2GHZ band as it contains all the rates */ | |
378 | rate_index = iwl4965_hwrate_to_plcp_idx(rate_n_flags); | |
379 | if (rate_index == -1) | |
380 | control->tx_rate = NULL; | |
381 | else | |
382 | control->tx_rate = | |
383 | &priv->bands[IEEE80211_BAND_2GHZ].bitrates[rate_index]; | |
384 | } | |
17744ff6 | 385 | |
c79dd5b5 | 386 | int iwl4965_hw_rxq_stop(struct iwl_priv *priv) |
b481de9c ZY |
387 | { |
388 | int rc; | |
389 | unsigned long flags; | |
390 | ||
391 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 392 | rc = iwl_grab_nic_access(priv); |
b481de9c ZY |
393 | if (rc) { |
394 | spin_unlock_irqrestore(&priv->lock, flags); | |
395 | return rc; | |
396 | } | |
397 | ||
8b6eaea8 | 398 | /* stop Rx DMA */ |
3395f6e9 TW |
399 | iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0); |
400 | rc = iwl_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG, | |
b481de9c ZY |
401 | (1 << 24), 1000); |
402 | if (rc < 0) | |
403 | IWL_ERROR("Can't stop Rx DMA.\n"); | |
404 | ||
3395f6e9 | 405 | iwl_release_nic_access(priv); |
b481de9c ZY |
406 | spin_unlock_irqrestore(&priv->lock, flags); |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
8614f360 TW |
411 | /* |
412 | * EEPROM handlers | |
413 | */ | |
414 | ||
415 | static int iwl4965_eeprom_check_version(struct iwl_priv *priv) | |
416 | { | |
417 | u16 eeprom_ver; | |
418 | u16 calib_ver; | |
419 | ||
420 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); | |
421 | ||
422 | calib_ver = iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET); | |
423 | ||
424 | if (eeprom_ver < EEPROM_4965_EEPROM_VERSION || | |
425 | calib_ver < EEPROM_4965_TX_POWER_VERSION) | |
426 | goto err; | |
427 | ||
428 | return 0; | |
429 | err: | |
430 | IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", | |
431 | eeprom_ver, EEPROM_4965_EEPROM_VERSION, | |
432 | calib_ver, EEPROM_4965_TX_POWER_VERSION); | |
433 | return -EINVAL; | |
434 | ||
435 | } | |
079a2533 | 436 | int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) |
b481de9c | 437 | { |
d8609652 | 438 | int ret; |
b481de9c ZY |
439 | unsigned long flags; |
440 | ||
441 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 442 | ret = iwl_grab_nic_access(priv); |
d8609652 | 443 | if (ret) { |
b481de9c | 444 | spin_unlock_irqrestore(&priv->lock, flags); |
d8609652 | 445 | return ret; |
b481de9c ZY |
446 | } |
447 | ||
6f4083aa | 448 | if (src == IWL_PWR_SRC_VAUX) { |
b481de9c | 449 | u32 val; |
d8609652 | 450 | ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE, |
6f4083aa | 451 | &val); |
b481de9c | 452 | |
6f4083aa | 453 | if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) { |
3395f6e9 | 454 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
6f4083aa TW |
455 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, |
456 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
457 | } | |
458 | } else { | |
3395f6e9 | 459 | iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
6f4083aa TW |
460 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, |
461 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
462 | } | |
b481de9c | 463 | |
3395f6e9 | 464 | iwl_release_nic_access(priv); |
b481de9c ZY |
465 | spin_unlock_irqrestore(&priv->lock, flags); |
466 | ||
d8609652 | 467 | return ret; |
b481de9c ZY |
468 | } |
469 | ||
5a676bbe RR |
470 | static int iwl4965_disable_tx_fifo(struct iwl_priv *priv) |
471 | { | |
472 | unsigned long flags; | |
473 | int ret; | |
474 | ||
475 | spin_lock_irqsave(&priv->lock, flags); | |
476 | ||
477 | ret = iwl_grab_nic_access(priv); | |
478 | if (unlikely(ret)) { | |
479 | IWL_ERROR("Tx fifo reset failed"); | |
480 | spin_unlock_irqrestore(&priv->lock, flags); | |
481 | return ret; | |
482 | } | |
483 | ||
484 | iwl_write_prph(priv, IWL49_SCD_TXFACT, 0); | |
485 | iwl_release_nic_access(priv); | |
486 | spin_unlock_irqrestore(&priv->lock, flags); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
91238714 | 491 | static int iwl4965_apm_init(struct iwl_priv *priv) |
b481de9c | 492 | { |
91238714 | 493 | int ret = 0; |
b481de9c | 494 | |
3395f6e9 | 495 | iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
91238714 | 496 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); |
b481de9c | 497 | |
91238714 TW |
498 | /* set "initialization complete" bit to move adapter |
499 | * D0U* --> D0A* state */ | |
3395f6e9 | 500 | iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
b481de9c | 501 | |
91238714 TW |
502 | /* wait for clock stabilization */ |
503 | ret = iwl_poll_bit(priv, CSR_GP_CNTRL, | |
504 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, | |
505 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
506 | if (ret < 0) { | |
507 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
508 | goto out; | |
b481de9c ZY |
509 | } |
510 | ||
91238714 TW |
511 | ret = iwl_grab_nic_access(priv); |
512 | if (ret) | |
513 | goto out; | |
b481de9c | 514 | |
91238714 | 515 | /* enable DMA */ |
3395f6e9 TW |
516 | iwl_write_prph(priv, APMG_CLK_CTRL_REG, |
517 | APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT); | |
b481de9c ZY |
518 | |
519 | udelay(20); | |
520 | ||
3395f6e9 | 521 | iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, |
91238714 | 522 | APMG_PCIDEV_STT_VAL_L1_ACT_DIS); |
b481de9c | 523 | |
3395f6e9 | 524 | iwl_release_nic_access(priv); |
91238714 | 525 | out: |
91238714 TW |
526 | return ret; |
527 | } | |
528 | ||
694cc56d TW |
529 | |
530 | static void iwl4965_nic_config(struct iwl_priv *priv) | |
91238714 TW |
531 | { |
532 | unsigned long flags; | |
91238714 | 533 | u32 val; |
694cc56d TW |
534 | u16 radio_cfg; |
535 | u8 val_link; | |
6f4083aa | 536 | |
b481de9c ZY |
537 | spin_lock_irqsave(&priv->lock, flags); |
538 | ||
b661c819 | 539 | if ((priv->rev_id & 0x80) == 0x80 && (priv->rev_id & 0x7f) < 8) { |
b481de9c ZY |
540 | pci_read_config_dword(priv->pci_dev, PCI_REG_WUM8, &val); |
541 | /* Enable No Snoop field */ | |
542 | pci_write_config_dword(priv->pci_dev, PCI_REG_WUM8, | |
543 | val & ~(1 << 11)); | |
544 | } | |
545 | ||
b481de9c ZY |
546 | pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link); |
547 | ||
548 | /* disable L1 entry -- workaround for pre-B1 */ | |
549 | pci_write_config_byte(priv->pci_dev, PCI_LINK_CTRL, val_link & ~0x02); | |
550 | ||
694cc56d | 551 | radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG); |
b481de9c | 552 | |
694cc56d TW |
553 | /* write radio config values to register */ |
554 | if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX) | |
555 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, | |
556 | EEPROM_RF_CFG_TYPE_MSK(radio_cfg) | | |
557 | EEPROM_RF_CFG_STEP_MSK(radio_cfg) | | |
558 | EEPROM_RF_CFG_DASH_MSK(radio_cfg)); | |
b481de9c | 559 | |
694cc56d | 560 | /* set CSR_HW_CONFIG_REG for uCode use */ |
3395f6e9 | 561 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
a395b920 TW |
562 | CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | |
563 | CSR_HW_IF_CONFIG_REG_BIT_MAC_SI); | |
b481de9c | 564 | |
694cc56d TW |
565 | priv->calib_info = (struct iwl_eeprom_calib_info *) |
566 | iwl_eeprom_query_addr(priv, EEPROM_4965_CALIB_TXPOWER_OFFSET); | |
567 | ||
568 | spin_unlock_irqrestore(&priv->lock, flags); | |
569 | } | |
570 | ||
c79dd5b5 | 571 | int iwl4965_hw_nic_stop_master(struct iwl_priv *priv) |
b481de9c ZY |
572 | { |
573 | int rc = 0; | |
574 | u32 reg_val; | |
575 | unsigned long flags; | |
576 | ||
577 | spin_lock_irqsave(&priv->lock, flags); | |
578 | ||
579 | /* set stop master bit */ | |
3395f6e9 | 580 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); |
b481de9c | 581 | |
3395f6e9 | 582 | reg_val = iwl_read32(priv, CSR_GP_CNTRL); |
b481de9c ZY |
583 | |
584 | if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE == | |
585 | (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE)) | |
586 | IWL_DEBUG_INFO("Card in power save, master is already " | |
587 | "stopped\n"); | |
588 | else { | |
3395f6e9 | 589 | rc = iwl_poll_bit(priv, CSR_RESET, |
b481de9c ZY |
590 | CSR_RESET_REG_FLAG_MASTER_DISABLED, |
591 | CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); | |
592 | if (rc < 0) { | |
593 | spin_unlock_irqrestore(&priv->lock, flags); | |
594 | return rc; | |
595 | } | |
596 | } | |
597 | ||
598 | spin_unlock_irqrestore(&priv->lock, flags); | |
599 | IWL_DEBUG_INFO("stop master\n"); | |
600 | ||
601 | return rc; | |
602 | } | |
603 | ||
8b6eaea8 BC |
604 | /** |
605 | * iwl4965_hw_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory | |
606 | */ | |
c79dd5b5 | 607 | void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv) |
b481de9c ZY |
608 | { |
609 | ||
610 | int txq_id; | |
611 | unsigned long flags; | |
612 | ||
8b6eaea8 | 613 | /* Stop each Tx DMA channel, and wait for it to be idle */ |
5425e490 | 614 | for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { |
b481de9c | 615 | spin_lock_irqsave(&priv->lock, flags); |
3395f6e9 | 616 | if (iwl_grab_nic_access(priv)) { |
b481de9c ZY |
617 | spin_unlock_irqrestore(&priv->lock, flags); |
618 | continue; | |
619 | } | |
620 | ||
3395f6e9 | 621 | iwl_write_direct32(priv, |
4b52c39d EG |
622 | FH_TCSR_CHNL_TX_CONFIG_REG(txq_id), 0x0); |
623 | iwl_poll_direct_bit(priv, FH_TSSR_TX_STATUS_REG, | |
624 | FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE | |
3395f6e9 TW |
625 | (txq_id), 200); |
626 | iwl_release_nic_access(priv); | |
b481de9c ZY |
627 | spin_unlock_irqrestore(&priv->lock, flags); |
628 | } | |
629 | ||
8b6eaea8 | 630 | /* Deallocate memory for all Tx queues */ |
1053d35f | 631 | iwl_hw_txq_ctx_free(priv); |
b481de9c ZY |
632 | } |
633 | ||
c79dd5b5 | 634 | int iwl4965_hw_nic_reset(struct iwl_priv *priv) |
b481de9c ZY |
635 | { |
636 | int rc = 0; | |
637 | unsigned long flags; | |
638 | ||
bb8c093b | 639 | iwl4965_hw_nic_stop_master(priv); |
b481de9c ZY |
640 | |
641 | spin_lock_irqsave(&priv->lock, flags); | |
642 | ||
3395f6e9 | 643 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); |
b481de9c ZY |
644 | |
645 | udelay(10); | |
646 | ||
3395f6e9 TW |
647 | iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
648 | rc = iwl_poll_bit(priv, CSR_RESET, | |
b481de9c ZY |
649 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, |
650 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25); | |
651 | ||
652 | udelay(10); | |
653 | ||
3395f6e9 | 654 | rc = iwl_grab_nic_access(priv); |
b481de9c | 655 | if (!rc) { |
3395f6e9 TW |
656 | iwl_write_prph(priv, APMG_CLK_EN_REG, |
657 | APMG_CLK_VAL_DMA_CLK_RQT | | |
658 | APMG_CLK_VAL_BSM_CLK_RQT); | |
b481de9c ZY |
659 | |
660 | udelay(10); | |
661 | ||
3395f6e9 TW |
662 | iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, |
663 | APMG_PCIDEV_STT_VAL_L1_ACT_DIS); | |
b481de9c | 664 | |
3395f6e9 | 665 | iwl_release_nic_access(priv); |
b481de9c ZY |
666 | } |
667 | ||
668 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
669 | wake_up_interruptible(&priv->wait_command_queue); | |
670 | ||
671 | spin_unlock_irqrestore(&priv->lock, flags); | |
672 | ||
673 | return rc; | |
674 | ||
675 | } | |
676 | ||
677 | #define REG_RECALIB_PERIOD (60) | |
678 | ||
679 | /** | |
680 | * iwl4965_bg_statistics_periodic - Timer callback to queue statistics | |
681 | * | |
49ea8596 | 682 | * This callback is provided in order to send a statistics request. |
b481de9c ZY |
683 | * |
684 | * This timer function is continually reset to execute within | |
685 | * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION | |
686 | * was received. We need to ensure we receive the statistics in order | |
49ea8596 | 687 | * to update the temperature used for calibrating the TXPOWER. |
b481de9c ZY |
688 | */ |
689 | static void iwl4965_bg_statistics_periodic(unsigned long data) | |
690 | { | |
c79dd5b5 | 691 | struct iwl_priv *priv = (struct iwl_priv *)data; |
b481de9c | 692 | |
b481de9c ZY |
693 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
694 | return; | |
695 | ||
49ea8596 | 696 | iwl_send_statistics_request(priv, CMD_ASYNC); |
b481de9c ZY |
697 | } |
698 | ||
c79dd5b5 | 699 | void iwl4965_rf_kill_ct_config(struct iwl_priv *priv) |
b481de9c | 700 | { |
bb8c093b | 701 | struct iwl4965_ct_kill_config cmd; |
b481de9c | 702 | unsigned long flags; |
857485c0 | 703 | int ret = 0; |
b481de9c ZY |
704 | |
705 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 706 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
b481de9c ZY |
707 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
708 | spin_unlock_irqrestore(&priv->lock, flags); | |
709 | ||
099b40b7 | 710 | cmd.critical_temperature_R = |
b73cdf27 EG |
711 | cpu_to_le32(priv->hw_params.ct_kill_threshold); |
712 | ||
857485c0 TW |
713 | ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
714 | sizeof(cmd), &cmd); | |
715 | if (ret) | |
b481de9c ZY |
716 | IWL_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n"); |
717 | else | |
b73cdf27 EG |
718 | IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded, " |
719 | "critical temperature is %d\n", | |
720 | cmd.critical_temperature_R); | |
b481de9c ZY |
721 | } |
722 | ||
f0832f13 | 723 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
b481de9c ZY |
724 | |
725 | /* Reset differential Rx gains in NIC to prepare for chain noise calibration. | |
726 | * Called after every association, but this runs only once! | |
727 | * ... once chain noise is calibrated the first time, it's good forever. */ | |
f0832f13 | 728 | static void iwl4965_chain_noise_reset(struct iwl_priv *priv) |
b481de9c | 729 | { |
f0832f13 | 730 | struct iwl_chain_noise_data *data = &(priv->chain_noise_data); |
b481de9c | 731 | |
3109ece1 | 732 | if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) { |
bb8c093b | 733 | struct iwl4965_calibration_cmd cmd; |
b481de9c ZY |
734 | |
735 | memset(&cmd, 0, sizeof(cmd)); | |
736 | cmd.opCode = PHY_CALIBRATE_DIFF_GAIN_CMD; | |
737 | cmd.diff_gain_a = 0; | |
738 | cmd.diff_gain_b = 0; | |
739 | cmd.diff_gain_c = 0; | |
f0832f13 EG |
740 | if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, |
741 | sizeof(cmd), &cmd)) | |
742 | IWL_ERROR("Could not send REPLY_PHY_CALIBRATION_CMD\n"); | |
b481de9c ZY |
743 | data->state = IWL_CHAIN_NOISE_ACCUMULATE; |
744 | IWL_DEBUG_CALIB("Run chain_noise_calibrate\n"); | |
745 | } | |
b481de9c ZY |
746 | } |
747 | ||
f0832f13 EG |
748 | static void iwl4965_gain_computation(struct iwl_priv *priv, |
749 | u32 *average_noise, | |
750 | u16 min_average_noise_antenna_i, | |
751 | u32 min_average_noise) | |
b481de9c | 752 | { |
f0832f13 EG |
753 | int i, ret; |
754 | struct iwl_chain_noise_data *data = &priv->chain_noise_data; | |
b481de9c | 755 | |
f0832f13 | 756 | data->delta_gain_code[min_average_noise_antenna_i] = 0; |
b481de9c | 757 | |
f0832f13 EG |
758 | for (i = 0; i < NUM_RX_CHAINS; i++) { |
759 | s32 delta_g = 0; | |
b481de9c | 760 | |
f0832f13 EG |
761 | if (!(data->disconn_array[i]) && |
762 | (data->delta_gain_code[i] == | |
b481de9c | 763 | CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) { |
f0832f13 EG |
764 | delta_g = average_noise[i] - min_average_noise; |
765 | data->delta_gain_code[i] = (u8)((delta_g * 10) / 15); | |
766 | data->delta_gain_code[i] = | |
767 | min(data->delta_gain_code[i], | |
768 | (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); | |
769 | ||
770 | data->delta_gain_code[i] = | |
771 | (data->delta_gain_code[i] | (1 << 2)); | |
772 | } else { | |
773 | data->delta_gain_code[i] = 0; | |
b481de9c | 774 | } |
b481de9c | 775 | } |
f0832f13 EG |
776 | IWL_DEBUG_CALIB("delta_gain_codes: a %d b %d c %d\n", |
777 | data->delta_gain_code[0], | |
778 | data->delta_gain_code[1], | |
779 | data->delta_gain_code[2]); | |
b481de9c | 780 | |
f0832f13 EG |
781 | /* Differential gain gets sent to uCode only once */ |
782 | if (!data->radio_write) { | |
783 | struct iwl4965_calibration_cmd cmd; | |
784 | data->radio_write = 1; | |
b481de9c | 785 | |
f0832f13 EG |
786 | memset(&cmd, 0, sizeof(cmd)); |
787 | cmd.opCode = PHY_CALIBRATE_DIFF_GAIN_CMD; | |
788 | cmd.diff_gain_a = data->delta_gain_code[0]; | |
789 | cmd.diff_gain_b = data->delta_gain_code[1]; | |
790 | cmd.diff_gain_c = data->delta_gain_code[2]; | |
791 | ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, | |
792 | sizeof(cmd), &cmd); | |
793 | if (ret) | |
794 | IWL_DEBUG_CALIB("fail sending cmd " | |
795 | "REPLY_PHY_CALIBRATION_CMD \n"); | |
796 | ||
797 | /* TODO we might want recalculate | |
798 | * rx_chain in rxon cmd */ | |
799 | ||
800 | /* Mark so we run this algo only once! */ | |
801 | data->state = IWL_CHAIN_NOISE_CALIBRATED; | |
b481de9c | 802 | } |
f0832f13 EG |
803 | data->chain_noise_a = 0; |
804 | data->chain_noise_b = 0; | |
805 | data->chain_noise_c = 0; | |
806 | data->chain_signal_a = 0; | |
807 | data->chain_signal_b = 0; | |
808 | data->chain_signal_c = 0; | |
809 | data->beacon_count = 0; | |
b481de9c ZY |
810 | } |
811 | ||
812 | static void iwl4965_bg_sensitivity_work(struct work_struct *work) | |
813 | { | |
c79dd5b5 | 814 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
b481de9c ZY |
815 | sensitivity_work); |
816 | ||
817 | mutex_lock(&priv->mutex); | |
818 | ||
819 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
820 | test_bit(STATUS_SCANNING, &priv->status)) { | |
821 | mutex_unlock(&priv->mutex); | |
822 | return; | |
823 | } | |
824 | ||
825 | if (priv->start_calib) { | |
f0832f13 EG |
826 | iwl_chain_noise_calibration(priv, &priv->statistics); |
827 | ||
828 | iwl_sensitivity_calibration(priv, &priv->statistics); | |
b481de9c ZY |
829 | } |
830 | ||
831 | mutex_unlock(&priv->mutex); | |
832 | return; | |
833 | } | |
f0832f13 | 834 | #endif /*CONFIG_IWL4965_RUN_TIME_CALIB*/ |
b481de9c ZY |
835 | |
836 | static void iwl4965_bg_txpower_work(struct work_struct *work) | |
837 | { | |
c79dd5b5 | 838 | struct iwl_priv *priv = container_of(work, struct iwl_priv, |
b481de9c ZY |
839 | txpower_work); |
840 | ||
841 | /* If a scan happened to start before we got here | |
842 | * then just return; the statistics notification will | |
843 | * kick off another scheduled work to compensate for | |
844 | * any temperature delta we missed here. */ | |
845 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || | |
846 | test_bit(STATUS_SCANNING, &priv->status)) | |
847 | return; | |
848 | ||
849 | mutex_lock(&priv->mutex); | |
850 | ||
851 | /* Regardless of if we are assocaited, we must reconfigure the | |
852 | * TX power since frames can be sent on non-radar channels while | |
853 | * not associated */ | |
bb8c093b | 854 | iwl4965_hw_reg_send_txpower(priv); |
b481de9c ZY |
855 | |
856 | /* Update last_temperature to keep is_calib_needed from running | |
857 | * when it isn't needed... */ | |
858 | priv->last_temperature = priv->temperature; | |
859 | ||
860 | mutex_unlock(&priv->mutex); | |
861 | } | |
862 | ||
863 | /* | |
864 | * Acquire priv->lock before calling this function ! | |
865 | */ | |
c79dd5b5 | 866 | static void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index) |
b481de9c | 867 | { |
3395f6e9 | 868 | iwl_write_direct32(priv, HBUS_TARG_WRPTR, |
b481de9c | 869 | (index & 0xff) | (txq_id << 8)); |
12a81f60 | 870 | iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index); |
b481de9c ZY |
871 | } |
872 | ||
8b6eaea8 BC |
873 | /** |
874 | * iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue | |
875 | * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed | |
876 | * @scd_retry: (1) Indicates queue will be used in aggregation mode | |
877 | * | |
878 | * NOTE: Acquire priv->lock before calling this function ! | |
b481de9c | 879 | */ |
c79dd5b5 | 880 | static void iwl4965_tx_queue_set_status(struct iwl_priv *priv, |
16466903 | 881 | struct iwl_tx_queue *txq, |
b481de9c ZY |
882 | int tx_fifo_id, int scd_retry) |
883 | { | |
884 | int txq_id = txq->q.id; | |
8b6eaea8 BC |
885 | |
886 | /* Find out whether to activate Tx queue */ | |
b481de9c ZY |
887 | int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0; |
888 | ||
8b6eaea8 | 889 | /* Set up and activate */ |
12a81f60 | 890 | iwl_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id), |
038669e4 EG |
891 | (active << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) | |
892 | (tx_fifo_id << IWL49_SCD_QUEUE_STTS_REG_POS_TXF) | | |
893 | (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_WSL) | | |
894 | (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) | | |
895 | IWL49_SCD_QUEUE_STTS_REG_MSK); | |
b481de9c ZY |
896 | |
897 | txq->sched_retry = scd_retry; | |
898 | ||
899 | IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n", | |
8b6eaea8 | 900 | active ? "Activate" : "Deactivate", |
b481de9c ZY |
901 | scd_retry ? "BA" : "AC", txq_id, tx_fifo_id); |
902 | } | |
903 | ||
904 | static const u16 default_queue_to_tx_fifo[] = { | |
905 | IWL_TX_FIFO_AC3, | |
906 | IWL_TX_FIFO_AC2, | |
907 | IWL_TX_FIFO_AC1, | |
908 | IWL_TX_FIFO_AC0, | |
038669e4 | 909 | IWL49_CMD_FIFO_NUM, |
b481de9c ZY |
910 | IWL_TX_FIFO_HCCA_1, |
911 | IWL_TX_FIFO_HCCA_2 | |
912 | }; | |
913 | ||
c79dd5b5 | 914 | static inline void iwl4965_txq_ctx_activate(struct iwl_priv *priv, int txq_id) |
b481de9c ZY |
915 | { |
916 | set_bit(txq_id, &priv->txq_ctx_active_msk); | |
917 | } | |
918 | ||
c79dd5b5 | 919 | static inline void iwl4965_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) |
b481de9c ZY |
920 | { |
921 | clear_bit(txq_id, &priv->txq_ctx_active_msk); | |
922 | } | |
923 | ||
c79dd5b5 | 924 | int iwl4965_alive_notify(struct iwl_priv *priv) |
b481de9c ZY |
925 | { |
926 | u32 a; | |
927 | int i = 0; | |
928 | unsigned long flags; | |
857485c0 | 929 | int ret; |
b481de9c ZY |
930 | |
931 | spin_lock_irqsave(&priv->lock, flags); | |
932 | ||
f0832f13 | 933 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
b481de9c | 934 | memset(&(priv->sensitivity_data), 0, |
f0832f13 | 935 | sizeof(struct iwl_sensitivity_data)); |
b481de9c | 936 | memset(&(priv->chain_noise_data), 0, |
f0832f13 | 937 | sizeof(struct iwl_chain_noise_data)); |
b481de9c ZY |
938 | for (i = 0; i < NUM_RX_CHAINS; i++) |
939 | priv->chain_noise_data.delta_gain_code[i] = | |
940 | CHAIN_NOISE_DELTA_GAIN_INIT_VAL; | |
f0832f13 | 941 | #endif /* CONFIG_IWL4965_RUN_TIME_CALIB*/ |
3395f6e9 | 942 | ret = iwl_grab_nic_access(priv); |
857485c0 | 943 | if (ret) { |
b481de9c | 944 | spin_unlock_irqrestore(&priv->lock, flags); |
857485c0 | 945 | return ret; |
b481de9c ZY |
946 | } |
947 | ||
8b6eaea8 | 948 | /* Clear 4965's internal Tx Scheduler data base */ |
12a81f60 | 949 | priv->scd_base_addr = iwl_read_prph(priv, IWL49_SCD_SRAM_BASE_ADDR); |
038669e4 EG |
950 | a = priv->scd_base_addr + IWL49_SCD_CONTEXT_DATA_OFFSET; |
951 | for (; a < priv->scd_base_addr + IWL49_SCD_TX_STTS_BITMAP_OFFSET; a += 4) | |
3395f6e9 | 952 | iwl_write_targ_mem(priv, a, 0); |
038669e4 | 953 | for (; a < priv->scd_base_addr + IWL49_SCD_TRANSLATE_TBL_OFFSET; a += 4) |
3395f6e9 | 954 | iwl_write_targ_mem(priv, a, 0); |
5425e490 | 955 | for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4) |
3395f6e9 | 956 | iwl_write_targ_mem(priv, a, 0); |
b481de9c | 957 | |
8b6eaea8 | 958 | /* Tel 4965 where to find Tx byte count tables */ |
12a81f60 | 959 | iwl_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR, |
059ff826 | 960 | (priv->shared_phys + |
bb8c093b | 961 | offsetof(struct iwl4965_shared, queues_byte_cnt_tbls)) >> 10); |
8b6eaea8 BC |
962 | |
963 | /* Disable chain mode for all queues */ | |
12a81f60 | 964 | iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0); |
b481de9c | 965 | |
8b6eaea8 | 966 | /* Initialize each Tx queue (including the command queue) */ |
5425e490 | 967 | for (i = 0; i < priv->hw_params.max_txq_num; i++) { |
8b6eaea8 BC |
968 | |
969 | /* TFD circular buffer read/write indexes */ | |
12a81f60 | 970 | iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(i), 0); |
3395f6e9 | 971 | iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); |
8b6eaea8 BC |
972 | |
973 | /* Max Tx Window size for Scheduler-ACK mode */ | |
3395f6e9 | 974 | iwl_write_targ_mem(priv, priv->scd_base_addr + |
038669e4 EG |
975 | IWL49_SCD_CONTEXT_QUEUE_OFFSET(i), |
976 | (SCD_WIN_SIZE << | |
977 | IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) & | |
978 | IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK); | |
8b6eaea8 BC |
979 | |
980 | /* Frame limit */ | |
3395f6e9 | 981 | iwl_write_targ_mem(priv, priv->scd_base_addr + |
038669e4 EG |
982 | IWL49_SCD_CONTEXT_QUEUE_OFFSET(i) + |
983 | sizeof(u32), | |
984 | (SCD_FRAME_LIMIT << | |
985 | IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & | |
986 | IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK); | |
b481de9c ZY |
987 | |
988 | } | |
12a81f60 | 989 | iwl_write_prph(priv, IWL49_SCD_INTERRUPT_MASK, |
5425e490 | 990 | (1 << priv->hw_params.max_txq_num) - 1); |
b481de9c | 991 | |
8b6eaea8 | 992 | /* Activate all Tx DMA/FIFO channels */ |
12a81f60 | 993 | iwl_write_prph(priv, IWL49_SCD_TXFACT, |
b481de9c ZY |
994 | SCD_TXFACT_REG_TXFIFO_MASK(0, 7)); |
995 | ||
996 | iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); | |
8b6eaea8 BC |
997 | |
998 | /* Map each Tx/cmd queue to its corresponding fifo */ | |
b481de9c ZY |
999 | for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) { |
1000 | int ac = default_queue_to_tx_fifo[i]; | |
1001 | iwl4965_txq_ctx_activate(priv, i); | |
1002 | iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0); | |
1003 | } | |
1004 | ||
3395f6e9 | 1005 | iwl_release_nic_access(priv); |
b481de9c ZY |
1006 | spin_unlock_irqrestore(&priv->lock, flags); |
1007 | ||
49ea8596 EG |
1008 | /* Ask for statistics now, the uCode will send statistics notification |
1009 | * periodically after association */ | |
1010 | iwl_send_statistics_request(priv, CMD_ASYNC); | |
857485c0 | 1011 | return ret; |
b481de9c ZY |
1012 | } |
1013 | ||
f0832f13 EG |
1014 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
1015 | static struct iwl_sensitivity_ranges iwl4965_sensitivity = { | |
1016 | .min_nrg_cck = 97, | |
1017 | .max_nrg_cck = 0, | |
1018 | ||
1019 | .auto_corr_min_ofdm = 85, | |
1020 | .auto_corr_min_ofdm_mrc = 170, | |
1021 | .auto_corr_min_ofdm_x1 = 105, | |
1022 | .auto_corr_min_ofdm_mrc_x1 = 220, | |
1023 | ||
1024 | .auto_corr_max_ofdm = 120, | |
1025 | .auto_corr_max_ofdm_mrc = 210, | |
1026 | .auto_corr_max_ofdm_x1 = 140, | |
1027 | .auto_corr_max_ofdm_mrc_x1 = 270, | |
1028 | ||
1029 | .auto_corr_min_cck = 125, | |
1030 | .auto_corr_max_cck = 200, | |
1031 | .auto_corr_min_cck_mrc = 200, | |
1032 | .auto_corr_max_cck_mrc = 400, | |
1033 | ||
1034 | .nrg_th_cck = 100, | |
1035 | .nrg_th_ofdm = 100, | |
1036 | }; | |
1037 | #endif | |
1038 | ||
8b6eaea8 | 1039 | /** |
5425e490 | 1040 | * iwl4965_hw_set_hw_params |
8b6eaea8 BC |
1041 | * |
1042 | * Called when initializing driver | |
1043 | */ | |
5425e490 | 1044 | int iwl4965_hw_set_hw_params(struct iwl_priv *priv) |
b481de9c | 1045 | { |
316c30d9 | 1046 | |
038669e4 | 1047 | if ((priv->cfg->mod_params->num_of_queues > IWL49_NUM_QUEUES) || |
1ea87396 | 1048 | (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) { |
316c30d9 | 1049 | IWL_ERROR("invalid queues_num, should be between %d and %d\n", |
038669e4 | 1050 | IWL_MIN_NUM_QUEUES, IWL49_NUM_QUEUES); |
059ff826 | 1051 | return -EINVAL; |
316c30d9 | 1052 | } |
b481de9c | 1053 | |
5425e490 | 1054 | priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues; |
099b40b7 | 1055 | priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto; |
5425e490 TW |
1056 | priv->hw_params.tx_cmd_len = sizeof(struct iwl4965_tx_cmd); |
1057 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; | |
1058 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
1ea87396 | 1059 | if (priv->cfg->mod_params->amsdu_size_8K) |
5425e490 | 1060 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; |
9ee1ba47 | 1061 | else |
5425e490 TW |
1062 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; |
1063 | priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; | |
1064 | priv->hw_params.max_stations = IWL4965_STATION_COUNT; | |
1065 | priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID; | |
3e82a822 | 1066 | |
099b40b7 RR |
1067 | priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE; |
1068 | priv->hw_params.max_inst_size = IWL49_RTC_INST_SIZE; | |
1069 | priv->hw_params.max_bsm_size = BSM_SRAM_SIZE; | |
1070 | priv->hw_params.fat_channel = BIT(IEEE80211_BAND_5GHZ); | |
1071 | ||
ec35cf2a TW |
1072 | priv->hw_params.tx_chains_num = 2; |
1073 | priv->hw_params.rx_chains_num = 2; | |
fde0db31 GC |
1074 | priv->hw_params.valid_tx_ant = ANT_A | ANT_B; |
1075 | priv->hw_params.valid_rx_ant = ANT_A | ANT_B; | |
099b40b7 RR |
1076 | priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD); |
1077 | ||
f0832f13 EG |
1078 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
1079 | priv->hw_params.sens = &iwl4965_sensitivity; | |
1080 | #endif | |
3e82a822 | 1081 | |
059ff826 | 1082 | return 0; |
b481de9c ZY |
1083 | } |
1084 | ||
5da4b55f MA |
1085 | /* set card power command */ |
1086 | static int iwl4965_set_power(struct iwl_priv *priv, | |
1087 | void *cmd) | |
1088 | { | |
1089 | int ret = 0; | |
1090 | ||
1091 | ret = iwl_send_cmd_pdu_async(priv, POWER_TABLE_CMD, | |
1092 | sizeof(struct iwl4965_powertable_cmd), | |
1093 | cmd, NULL); | |
1094 | return ret; | |
1095 | } | |
c79dd5b5 | 1096 | int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power) |
b481de9c | 1097 | { |
bb8c093b | 1098 | IWL_ERROR("TODO: Implement iwl4965_hw_reg_set_txpower!\n"); |
b481de9c ZY |
1099 | return -EINVAL; |
1100 | } | |
1101 | ||
1102 | static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res) | |
1103 | { | |
1104 | s32 sign = 1; | |
1105 | ||
1106 | if (num < 0) { | |
1107 | sign = -sign; | |
1108 | num = -num; | |
1109 | } | |
1110 | if (denom < 0) { | |
1111 | sign = -sign; | |
1112 | denom = -denom; | |
1113 | } | |
1114 | *res = 1; | |
1115 | *res = ((num * 2 + denom) / (denom * 2)) * sign; | |
1116 | ||
1117 | return 1; | |
1118 | } | |
1119 | ||
8b6eaea8 BC |
1120 | /** |
1121 | * iwl4965_get_voltage_compensation - Power supply voltage comp for txpower | |
1122 | * | |
1123 | * Determines power supply voltage compensation for txpower calculations. | |
1124 | * Returns number of 1/2-dB steps to subtract from gain table index, | |
1125 | * to compensate for difference between power supply voltage during | |
1126 | * factory measurements, vs. current power supply voltage. | |
1127 | * | |
1128 | * Voltage indication is higher for lower voltage. | |
1129 | * Lower voltage requires more gain (lower gain table index). | |
1130 | */ | |
b481de9c ZY |
1131 | static s32 iwl4965_get_voltage_compensation(s32 eeprom_voltage, |
1132 | s32 current_voltage) | |
1133 | { | |
1134 | s32 comp = 0; | |
1135 | ||
1136 | if ((TX_POWER_IWL_ILLEGAL_VOLTAGE == eeprom_voltage) || | |
1137 | (TX_POWER_IWL_ILLEGAL_VOLTAGE == current_voltage)) | |
1138 | return 0; | |
1139 | ||
1140 | iwl4965_math_div_round(current_voltage - eeprom_voltage, | |
1141 | TX_POWER_IWL_VOLTAGE_CODES_PER_03V, &comp); | |
1142 | ||
1143 | if (current_voltage > eeprom_voltage) | |
1144 | comp *= 2; | |
1145 | if ((comp < -2) || (comp > 2)) | |
1146 | comp = 0; | |
1147 | ||
1148 | return comp; | |
1149 | } | |
1150 | ||
bf85ea4f | 1151 | static const struct iwl_channel_info * |
c79dd5b5 | 1152 | iwl4965_get_channel_txpower_info(struct iwl_priv *priv, |
8318d78a | 1153 | enum ieee80211_band band, u16 channel) |
b481de9c | 1154 | { |
bf85ea4f | 1155 | const struct iwl_channel_info *ch_info; |
b481de9c | 1156 | |
8622e705 | 1157 | ch_info = iwl_get_channel_info(priv, band, channel); |
b481de9c ZY |
1158 | |
1159 | if (!is_channel_valid(ch_info)) | |
1160 | return NULL; | |
1161 | ||
1162 | return ch_info; | |
1163 | } | |
1164 | ||
1165 | static s32 iwl4965_get_tx_atten_grp(u16 channel) | |
1166 | { | |
1167 | if (channel >= CALIB_IWL_TX_ATTEN_GR5_FCH && | |
1168 | channel <= CALIB_IWL_TX_ATTEN_GR5_LCH) | |
1169 | return CALIB_CH_GROUP_5; | |
1170 | ||
1171 | if (channel >= CALIB_IWL_TX_ATTEN_GR1_FCH && | |
1172 | channel <= CALIB_IWL_TX_ATTEN_GR1_LCH) | |
1173 | return CALIB_CH_GROUP_1; | |
1174 | ||
1175 | if (channel >= CALIB_IWL_TX_ATTEN_GR2_FCH && | |
1176 | channel <= CALIB_IWL_TX_ATTEN_GR2_LCH) | |
1177 | return CALIB_CH_GROUP_2; | |
1178 | ||
1179 | if (channel >= CALIB_IWL_TX_ATTEN_GR3_FCH && | |
1180 | channel <= CALIB_IWL_TX_ATTEN_GR3_LCH) | |
1181 | return CALIB_CH_GROUP_3; | |
1182 | ||
1183 | if (channel >= CALIB_IWL_TX_ATTEN_GR4_FCH && | |
1184 | channel <= CALIB_IWL_TX_ATTEN_GR4_LCH) | |
1185 | return CALIB_CH_GROUP_4; | |
1186 | ||
1187 | IWL_ERROR("Can't find txatten group for channel %d.\n", channel); | |
1188 | return -1; | |
1189 | } | |
1190 | ||
c79dd5b5 | 1191 | static u32 iwl4965_get_sub_band(const struct iwl_priv *priv, u32 channel) |
b481de9c ZY |
1192 | { |
1193 | s32 b = -1; | |
1194 | ||
1195 | for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) { | |
073d3f5f | 1196 | if (priv->calib_info->band_info[b].ch_from == 0) |
b481de9c ZY |
1197 | continue; |
1198 | ||
073d3f5f TW |
1199 | if ((channel >= priv->calib_info->band_info[b].ch_from) |
1200 | && (channel <= priv->calib_info->band_info[b].ch_to)) | |
b481de9c ZY |
1201 | break; |
1202 | } | |
1203 | ||
1204 | return b; | |
1205 | } | |
1206 | ||
1207 | static s32 iwl4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2) | |
1208 | { | |
1209 | s32 val; | |
1210 | ||
1211 | if (x2 == x1) | |
1212 | return y1; | |
1213 | else { | |
1214 | iwl4965_math_div_round((x2 - x) * (y1 - y2), (x2 - x1), &val); | |
1215 | return val + y2; | |
1216 | } | |
1217 | } | |
1218 | ||
8b6eaea8 BC |
1219 | /** |
1220 | * iwl4965_interpolate_chan - Interpolate factory measurements for one channel | |
1221 | * | |
1222 | * Interpolates factory measurements from the two sample channels within a | |
1223 | * sub-band, to apply to channel of interest. Interpolation is proportional to | |
1224 | * differences in channel frequencies, which is proportional to differences | |
1225 | * in channel number. | |
1226 | */ | |
c79dd5b5 | 1227 | static int iwl4965_interpolate_chan(struct iwl_priv *priv, u32 channel, |
073d3f5f | 1228 | struct iwl_eeprom_calib_ch_info *chan_info) |
b481de9c ZY |
1229 | { |
1230 | s32 s = -1; | |
1231 | u32 c; | |
1232 | u32 m; | |
073d3f5f TW |
1233 | const struct iwl_eeprom_calib_measure *m1; |
1234 | const struct iwl_eeprom_calib_measure *m2; | |
1235 | struct iwl_eeprom_calib_measure *omeas; | |
b481de9c ZY |
1236 | u32 ch_i1; |
1237 | u32 ch_i2; | |
1238 | ||
1239 | s = iwl4965_get_sub_band(priv, channel); | |
1240 | if (s >= EEPROM_TX_POWER_BANDS) { | |
1241 | IWL_ERROR("Tx Power can not find channel %d ", channel); | |
1242 | return -1; | |
1243 | } | |
1244 | ||
073d3f5f TW |
1245 | ch_i1 = priv->calib_info->band_info[s].ch1.ch_num; |
1246 | ch_i2 = priv->calib_info->band_info[s].ch2.ch_num; | |
b481de9c ZY |
1247 | chan_info->ch_num = (u8) channel; |
1248 | ||
1249 | IWL_DEBUG_TXPOWER("channel %d subband %d factory cal ch %d & %d\n", | |
1250 | channel, s, ch_i1, ch_i2); | |
1251 | ||
1252 | for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) { | |
1253 | for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) { | |
073d3f5f | 1254 | m1 = &(priv->calib_info->band_info[s].ch1. |
b481de9c | 1255 | measurements[c][m]); |
073d3f5f | 1256 | m2 = &(priv->calib_info->band_info[s].ch2. |
b481de9c ZY |
1257 | measurements[c][m]); |
1258 | omeas = &(chan_info->measurements[c][m]); | |
1259 | ||
1260 | omeas->actual_pow = | |
1261 | (u8) iwl4965_interpolate_value(channel, ch_i1, | |
1262 | m1->actual_pow, | |
1263 | ch_i2, | |
1264 | m2->actual_pow); | |
1265 | omeas->gain_idx = | |
1266 | (u8) iwl4965_interpolate_value(channel, ch_i1, | |
1267 | m1->gain_idx, ch_i2, | |
1268 | m2->gain_idx); | |
1269 | omeas->temperature = | |
1270 | (u8) iwl4965_interpolate_value(channel, ch_i1, | |
1271 | m1->temperature, | |
1272 | ch_i2, | |
1273 | m2->temperature); | |
1274 | omeas->pa_det = | |
1275 | (s8) iwl4965_interpolate_value(channel, ch_i1, | |
1276 | m1->pa_det, ch_i2, | |
1277 | m2->pa_det); | |
1278 | ||
1279 | IWL_DEBUG_TXPOWER | |
1280 | ("chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, m, | |
1281 | m1->actual_pow, m2->actual_pow, omeas->actual_pow); | |
1282 | IWL_DEBUG_TXPOWER | |
1283 | ("chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, m, | |
1284 | m1->gain_idx, m2->gain_idx, omeas->gain_idx); | |
1285 | IWL_DEBUG_TXPOWER | |
1286 | ("chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, m, | |
1287 | m1->pa_det, m2->pa_det, omeas->pa_det); | |
1288 | IWL_DEBUG_TXPOWER | |
1289 | ("chain %d meas %d T1=%d T2=%d T=%d\n", c, m, | |
1290 | m1->temperature, m2->temperature, | |
1291 | omeas->temperature); | |
1292 | } | |
1293 | } | |
1294 | ||
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | /* bit-rate-dependent table to prevent Tx distortion, in half-dB units, | |
1299 | * for OFDM 6, 12, 18, 24, 36, 48, 54, 60 MBit, and CCK all rates. */ | |
1300 | static s32 back_off_table[] = { | |
1301 | 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 20 MHz */ | |
1302 | 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 20 MHz */ | |
1303 | 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 40 MHz */ | |
1304 | 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 40 MHz */ | |
1305 | 10 /* CCK */ | |
1306 | }; | |
1307 | ||
1308 | /* Thermal compensation values for txpower for various frequency ranges ... | |
1309 | * ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */ | |
bb8c093b | 1310 | static struct iwl4965_txpower_comp_entry { |
b481de9c ZY |
1311 | s32 degrees_per_05db_a; |
1312 | s32 degrees_per_05db_a_denom; | |
1313 | } tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = { | |
1314 | {9, 2}, /* group 0 5.2, ch 34-43 */ | |
1315 | {4, 1}, /* group 1 5.2, ch 44-70 */ | |
1316 | {4, 1}, /* group 2 5.2, ch 71-124 */ | |
1317 | {4, 1}, /* group 3 5.2, ch 125-200 */ | |
1318 | {3, 1} /* group 4 2.4, ch all */ | |
1319 | }; | |
1320 | ||
1321 | static s32 get_min_power_index(s32 rate_power_index, u32 band) | |
1322 | { | |
1323 | if (!band) { | |
1324 | if ((rate_power_index & 7) <= 4) | |
1325 | return MIN_TX_GAIN_INDEX_52GHZ_EXT; | |
1326 | } | |
1327 | return MIN_TX_GAIN_INDEX; | |
1328 | } | |
1329 | ||
1330 | struct gain_entry { | |
1331 | u8 dsp; | |
1332 | u8 radio; | |
1333 | }; | |
1334 | ||
1335 | static const struct gain_entry gain_table[2][108] = { | |
1336 | /* 5.2GHz power gain index table */ | |
1337 | { | |
1338 | {123, 0x3F}, /* highest txpower */ | |
1339 | {117, 0x3F}, | |
1340 | {110, 0x3F}, | |
1341 | {104, 0x3F}, | |
1342 | {98, 0x3F}, | |
1343 | {110, 0x3E}, | |
1344 | {104, 0x3E}, | |
1345 | {98, 0x3E}, | |
1346 | {110, 0x3D}, | |
1347 | {104, 0x3D}, | |
1348 | {98, 0x3D}, | |
1349 | {110, 0x3C}, | |
1350 | {104, 0x3C}, | |
1351 | {98, 0x3C}, | |
1352 | {110, 0x3B}, | |
1353 | {104, 0x3B}, | |
1354 | {98, 0x3B}, | |
1355 | {110, 0x3A}, | |
1356 | {104, 0x3A}, | |
1357 | {98, 0x3A}, | |
1358 | {110, 0x39}, | |
1359 | {104, 0x39}, | |
1360 | {98, 0x39}, | |
1361 | {110, 0x38}, | |
1362 | {104, 0x38}, | |
1363 | {98, 0x38}, | |
1364 | {110, 0x37}, | |
1365 | {104, 0x37}, | |
1366 | {98, 0x37}, | |
1367 | {110, 0x36}, | |
1368 | {104, 0x36}, | |
1369 | {98, 0x36}, | |
1370 | {110, 0x35}, | |
1371 | {104, 0x35}, | |
1372 | {98, 0x35}, | |
1373 | {110, 0x34}, | |
1374 | {104, 0x34}, | |
1375 | {98, 0x34}, | |
1376 | {110, 0x33}, | |
1377 | {104, 0x33}, | |
1378 | {98, 0x33}, | |
1379 | {110, 0x32}, | |
1380 | {104, 0x32}, | |
1381 | {98, 0x32}, | |
1382 | {110, 0x31}, | |
1383 | {104, 0x31}, | |
1384 | {98, 0x31}, | |
1385 | {110, 0x30}, | |
1386 | {104, 0x30}, | |
1387 | {98, 0x30}, | |
1388 | {110, 0x25}, | |
1389 | {104, 0x25}, | |
1390 | {98, 0x25}, | |
1391 | {110, 0x24}, | |
1392 | {104, 0x24}, | |
1393 | {98, 0x24}, | |
1394 | {110, 0x23}, | |
1395 | {104, 0x23}, | |
1396 | {98, 0x23}, | |
1397 | {110, 0x22}, | |
1398 | {104, 0x18}, | |
1399 | {98, 0x18}, | |
1400 | {110, 0x17}, | |
1401 | {104, 0x17}, | |
1402 | {98, 0x17}, | |
1403 | {110, 0x16}, | |
1404 | {104, 0x16}, | |
1405 | {98, 0x16}, | |
1406 | {110, 0x15}, | |
1407 | {104, 0x15}, | |
1408 | {98, 0x15}, | |
1409 | {110, 0x14}, | |
1410 | {104, 0x14}, | |
1411 | {98, 0x14}, | |
1412 | {110, 0x13}, | |
1413 | {104, 0x13}, | |
1414 | {98, 0x13}, | |
1415 | {110, 0x12}, | |
1416 | {104, 0x08}, | |
1417 | {98, 0x08}, | |
1418 | {110, 0x07}, | |
1419 | {104, 0x07}, | |
1420 | {98, 0x07}, | |
1421 | {110, 0x06}, | |
1422 | {104, 0x06}, | |
1423 | {98, 0x06}, | |
1424 | {110, 0x05}, | |
1425 | {104, 0x05}, | |
1426 | {98, 0x05}, | |
1427 | {110, 0x04}, | |
1428 | {104, 0x04}, | |
1429 | {98, 0x04}, | |
1430 | {110, 0x03}, | |
1431 | {104, 0x03}, | |
1432 | {98, 0x03}, | |
1433 | {110, 0x02}, | |
1434 | {104, 0x02}, | |
1435 | {98, 0x02}, | |
1436 | {110, 0x01}, | |
1437 | {104, 0x01}, | |
1438 | {98, 0x01}, | |
1439 | {110, 0x00}, | |
1440 | {104, 0x00}, | |
1441 | {98, 0x00}, | |
1442 | {93, 0x00}, | |
1443 | {88, 0x00}, | |
1444 | {83, 0x00}, | |
1445 | {78, 0x00}, | |
1446 | }, | |
1447 | /* 2.4GHz power gain index table */ | |
1448 | { | |
1449 | {110, 0x3f}, /* highest txpower */ | |
1450 | {104, 0x3f}, | |
1451 | {98, 0x3f}, | |
1452 | {110, 0x3e}, | |
1453 | {104, 0x3e}, | |
1454 | {98, 0x3e}, | |
1455 | {110, 0x3d}, | |
1456 | {104, 0x3d}, | |
1457 | {98, 0x3d}, | |
1458 | {110, 0x3c}, | |
1459 | {104, 0x3c}, | |
1460 | {98, 0x3c}, | |
1461 | {110, 0x3b}, | |
1462 | {104, 0x3b}, | |
1463 | {98, 0x3b}, | |
1464 | {110, 0x3a}, | |
1465 | {104, 0x3a}, | |
1466 | {98, 0x3a}, | |
1467 | {110, 0x39}, | |
1468 | {104, 0x39}, | |
1469 | {98, 0x39}, | |
1470 | {110, 0x38}, | |
1471 | {104, 0x38}, | |
1472 | {98, 0x38}, | |
1473 | {110, 0x37}, | |
1474 | {104, 0x37}, | |
1475 | {98, 0x37}, | |
1476 | {110, 0x36}, | |
1477 | {104, 0x36}, | |
1478 | {98, 0x36}, | |
1479 | {110, 0x35}, | |
1480 | {104, 0x35}, | |
1481 | {98, 0x35}, | |
1482 | {110, 0x34}, | |
1483 | {104, 0x34}, | |
1484 | {98, 0x34}, | |
1485 | {110, 0x33}, | |
1486 | {104, 0x33}, | |
1487 | {98, 0x33}, | |
1488 | {110, 0x32}, | |
1489 | {104, 0x32}, | |
1490 | {98, 0x32}, | |
1491 | {110, 0x31}, | |
1492 | {104, 0x31}, | |
1493 | {98, 0x31}, | |
1494 | {110, 0x30}, | |
1495 | {104, 0x30}, | |
1496 | {98, 0x30}, | |
1497 | {110, 0x6}, | |
1498 | {104, 0x6}, | |
1499 | {98, 0x6}, | |
1500 | {110, 0x5}, | |
1501 | {104, 0x5}, | |
1502 | {98, 0x5}, | |
1503 | {110, 0x4}, | |
1504 | {104, 0x4}, | |
1505 | {98, 0x4}, | |
1506 | {110, 0x3}, | |
1507 | {104, 0x3}, | |
1508 | {98, 0x3}, | |
1509 | {110, 0x2}, | |
1510 | {104, 0x2}, | |
1511 | {98, 0x2}, | |
1512 | {110, 0x1}, | |
1513 | {104, 0x1}, | |
1514 | {98, 0x1}, | |
1515 | {110, 0x0}, | |
1516 | {104, 0x0}, | |
1517 | {98, 0x0}, | |
1518 | {97, 0}, | |
1519 | {96, 0}, | |
1520 | {95, 0}, | |
1521 | {94, 0}, | |
1522 | {93, 0}, | |
1523 | {92, 0}, | |
1524 | {91, 0}, | |
1525 | {90, 0}, | |
1526 | {89, 0}, | |
1527 | {88, 0}, | |
1528 | {87, 0}, | |
1529 | {86, 0}, | |
1530 | {85, 0}, | |
1531 | {84, 0}, | |
1532 | {83, 0}, | |
1533 | {82, 0}, | |
1534 | {81, 0}, | |
1535 | {80, 0}, | |
1536 | {79, 0}, | |
1537 | {78, 0}, | |
1538 | {77, 0}, | |
1539 | {76, 0}, | |
1540 | {75, 0}, | |
1541 | {74, 0}, | |
1542 | {73, 0}, | |
1543 | {72, 0}, | |
1544 | {71, 0}, | |
1545 | {70, 0}, | |
1546 | {69, 0}, | |
1547 | {68, 0}, | |
1548 | {67, 0}, | |
1549 | {66, 0}, | |
1550 | {65, 0}, | |
1551 | {64, 0}, | |
1552 | {63, 0}, | |
1553 | {62, 0}, | |
1554 | {61, 0}, | |
1555 | {60, 0}, | |
1556 | {59, 0}, | |
1557 | } | |
1558 | }; | |
1559 | ||
c79dd5b5 | 1560 | static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel, |
b481de9c | 1561 | u8 is_fat, u8 ctrl_chan_high, |
bb8c093b | 1562 | struct iwl4965_tx_power_db *tx_power_tbl) |
b481de9c ZY |
1563 | { |
1564 | u8 saturation_power; | |
1565 | s32 target_power; | |
1566 | s32 user_target_power; | |
1567 | s32 power_limit; | |
1568 | s32 current_temp; | |
1569 | s32 reg_limit; | |
1570 | s32 current_regulatory; | |
1571 | s32 txatten_grp = CALIB_CH_GROUP_MAX; | |
1572 | int i; | |
1573 | int c; | |
bf85ea4f | 1574 | const struct iwl_channel_info *ch_info = NULL; |
073d3f5f TW |
1575 | struct iwl_eeprom_calib_ch_info ch_eeprom_info; |
1576 | const struct iwl_eeprom_calib_measure *measurement; | |
b481de9c ZY |
1577 | s16 voltage; |
1578 | s32 init_voltage; | |
1579 | s32 voltage_compensation; | |
1580 | s32 degrees_per_05db_num; | |
1581 | s32 degrees_per_05db_denom; | |
1582 | s32 factory_temp; | |
1583 | s32 temperature_comp[2]; | |
1584 | s32 factory_gain_index[2]; | |
1585 | s32 factory_actual_pwr[2]; | |
1586 | s32 power_index; | |
1587 | ||
1588 | /* Sanity check requested level (dBm) */ | |
1589 | if (priv->user_txpower_limit < IWL_TX_POWER_TARGET_POWER_MIN) { | |
1590 | IWL_WARNING("Requested user TXPOWER %d below limit.\n", | |
1591 | priv->user_txpower_limit); | |
1592 | return -EINVAL; | |
1593 | } | |
1594 | if (priv->user_txpower_limit > IWL_TX_POWER_TARGET_POWER_MAX) { | |
1595 | IWL_WARNING("Requested user TXPOWER %d above limit.\n", | |
1596 | priv->user_txpower_limit); | |
1597 | return -EINVAL; | |
1598 | } | |
1599 | ||
1600 | /* user_txpower_limit is in dBm, convert to half-dBm (half-dB units | |
1601 | * are used for indexing into txpower table) */ | |
1602 | user_target_power = 2 * priv->user_txpower_limit; | |
1603 | ||
1604 | /* Get current (RXON) channel, band, width */ | |
1605 | ch_info = | |
8318d78a | 1606 | iwl4965_get_channel_txpower_info(priv, priv->band, channel); |
b481de9c ZY |
1607 | |
1608 | IWL_DEBUG_TXPOWER("chan %d band %d is_fat %d\n", channel, band, | |
1609 | is_fat); | |
1610 | ||
1611 | if (!ch_info) | |
1612 | return -EINVAL; | |
1613 | ||
1614 | /* get txatten group, used to select 1) thermal txpower adjustment | |
1615 | * and 2) mimo txpower balance between Tx chains. */ | |
1616 | txatten_grp = iwl4965_get_tx_atten_grp(channel); | |
1617 | if (txatten_grp < 0) | |
1618 | return -EINVAL; | |
1619 | ||
1620 | IWL_DEBUG_TXPOWER("channel %d belongs to txatten group %d\n", | |
1621 | channel, txatten_grp); | |
1622 | ||
1623 | if (is_fat) { | |
1624 | if (ctrl_chan_high) | |
1625 | channel -= 2; | |
1626 | else | |
1627 | channel += 2; | |
1628 | } | |
1629 | ||
1630 | /* hardware txpower limits ... | |
1631 | * saturation (clipping distortion) txpowers are in half-dBm */ | |
1632 | if (band) | |
073d3f5f | 1633 | saturation_power = priv->calib_info->saturation_power24; |
b481de9c | 1634 | else |
073d3f5f | 1635 | saturation_power = priv->calib_info->saturation_power52; |
b481de9c ZY |
1636 | |
1637 | if (saturation_power < IWL_TX_POWER_SATURATION_MIN || | |
1638 | saturation_power > IWL_TX_POWER_SATURATION_MAX) { | |
1639 | if (band) | |
1640 | saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_24; | |
1641 | else | |
1642 | saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_52; | |
1643 | } | |
1644 | ||
1645 | /* regulatory txpower limits ... reg_limit values are in half-dBm, | |
1646 | * max_power_avg values are in dBm, convert * 2 */ | |
1647 | if (is_fat) | |
1648 | reg_limit = ch_info->fat_max_power_avg * 2; | |
1649 | else | |
1650 | reg_limit = ch_info->max_power_avg * 2; | |
1651 | ||
1652 | if ((reg_limit < IWL_TX_POWER_REGULATORY_MIN) || | |
1653 | (reg_limit > IWL_TX_POWER_REGULATORY_MAX)) { | |
1654 | if (band) | |
1655 | reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_24; | |
1656 | else | |
1657 | reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_52; | |
1658 | } | |
1659 | ||
1660 | /* Interpolate txpower calibration values for this channel, | |
1661 | * based on factory calibration tests on spaced channels. */ | |
1662 | iwl4965_interpolate_chan(priv, channel, &ch_eeprom_info); | |
1663 | ||
1664 | /* calculate tx gain adjustment based on power supply voltage */ | |
073d3f5f | 1665 | voltage = priv->calib_info->voltage; |
b481de9c ZY |
1666 | init_voltage = (s32)le32_to_cpu(priv->card_alive_init.voltage); |
1667 | voltage_compensation = | |
1668 | iwl4965_get_voltage_compensation(voltage, init_voltage); | |
1669 | ||
1670 | IWL_DEBUG_TXPOWER("curr volt %d eeprom volt %d volt comp %d\n", | |
1671 | init_voltage, | |
1672 | voltage, voltage_compensation); | |
1673 | ||
1674 | /* get current temperature (Celsius) */ | |
1675 | current_temp = max(priv->temperature, IWL_TX_POWER_TEMPERATURE_MIN); | |
1676 | current_temp = min(priv->temperature, IWL_TX_POWER_TEMPERATURE_MAX); | |
1677 | current_temp = KELVIN_TO_CELSIUS(current_temp); | |
1678 | ||
1679 | /* select thermal txpower adjustment params, based on channel group | |
1680 | * (same frequency group used for mimo txatten adjustment) */ | |
1681 | degrees_per_05db_num = | |
1682 | tx_power_cmp_tble[txatten_grp].degrees_per_05db_a; | |
1683 | degrees_per_05db_denom = | |
1684 | tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom; | |
1685 | ||
1686 | /* get per-chain txpower values from factory measurements */ | |
1687 | for (c = 0; c < 2; c++) { | |
1688 | measurement = &ch_eeprom_info.measurements[c][1]; | |
1689 | ||
1690 | /* txgain adjustment (in half-dB steps) based on difference | |
1691 | * between factory and current temperature */ | |
1692 | factory_temp = measurement->temperature; | |
1693 | iwl4965_math_div_round((current_temp - factory_temp) * | |
1694 | degrees_per_05db_denom, | |
1695 | degrees_per_05db_num, | |
1696 | &temperature_comp[c]); | |
1697 | ||
1698 | factory_gain_index[c] = measurement->gain_idx; | |
1699 | factory_actual_pwr[c] = measurement->actual_pow; | |
1700 | ||
1701 | IWL_DEBUG_TXPOWER("chain = %d\n", c); | |
1702 | IWL_DEBUG_TXPOWER("fctry tmp %d, " | |
1703 | "curr tmp %d, comp %d steps\n", | |
1704 | factory_temp, current_temp, | |
1705 | temperature_comp[c]); | |
1706 | ||
1707 | IWL_DEBUG_TXPOWER("fctry idx %d, fctry pwr %d\n", | |
1708 | factory_gain_index[c], | |
1709 | factory_actual_pwr[c]); | |
1710 | } | |
1711 | ||
1712 | /* for each of 33 bit-rates (including 1 for CCK) */ | |
1713 | for (i = 0; i < POWER_TABLE_NUM_ENTRIES; i++) { | |
1714 | u8 is_mimo_rate; | |
bb8c093b | 1715 | union iwl4965_tx_power_dual_stream tx_power; |
b481de9c ZY |
1716 | |
1717 | /* for mimo, reduce each chain's txpower by half | |
1718 | * (3dB, 6 steps), so total output power is regulatory | |
1719 | * compliant. */ | |
1720 | if (i & 0x8) { | |
1721 | current_regulatory = reg_limit - | |
1722 | IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION; | |
1723 | is_mimo_rate = 1; | |
1724 | } else { | |
1725 | current_regulatory = reg_limit; | |
1726 | is_mimo_rate = 0; | |
1727 | } | |
1728 | ||
1729 | /* find txpower limit, either hardware or regulatory */ | |
1730 | power_limit = saturation_power - back_off_table[i]; | |
1731 | if (power_limit > current_regulatory) | |
1732 | power_limit = current_regulatory; | |
1733 | ||
1734 | /* reduce user's txpower request if necessary | |
1735 | * for this rate on this channel */ | |
1736 | target_power = user_target_power; | |
1737 | if (target_power > power_limit) | |
1738 | target_power = power_limit; | |
1739 | ||
1740 | IWL_DEBUG_TXPOWER("rate %d sat %d reg %d usr %d tgt %d\n", | |
1741 | i, saturation_power - back_off_table[i], | |
1742 | current_regulatory, user_target_power, | |
1743 | target_power); | |
1744 | ||
1745 | /* for each of 2 Tx chains (radio transmitters) */ | |
1746 | for (c = 0; c < 2; c++) { | |
1747 | s32 atten_value; | |
1748 | ||
1749 | if (is_mimo_rate) | |
1750 | atten_value = | |
1751 | (s32)le32_to_cpu(priv->card_alive_init. | |
1752 | tx_atten[txatten_grp][c]); | |
1753 | else | |
1754 | atten_value = 0; | |
1755 | ||
1756 | /* calculate index; higher index means lower txpower */ | |
1757 | power_index = (u8) (factory_gain_index[c] - | |
1758 | (target_power - | |
1759 | factory_actual_pwr[c]) - | |
1760 | temperature_comp[c] - | |
1761 | voltage_compensation + | |
1762 | atten_value); | |
1763 | ||
1764 | /* IWL_DEBUG_TXPOWER("calculated txpower index %d\n", | |
1765 | power_index); */ | |
1766 | ||
1767 | if (power_index < get_min_power_index(i, band)) | |
1768 | power_index = get_min_power_index(i, band); | |
1769 | ||
1770 | /* adjust 5 GHz index to support negative indexes */ | |
1771 | if (!band) | |
1772 | power_index += 9; | |
1773 | ||
1774 | /* CCK, rate 32, reduce txpower for CCK */ | |
1775 | if (i == POWER_TABLE_CCK_ENTRY) | |
1776 | power_index += | |
1777 | IWL_TX_POWER_CCK_COMPENSATION_C_STEP; | |
1778 | ||
1779 | /* stay within the table! */ | |
1780 | if (power_index > 107) { | |
1781 | IWL_WARNING("txpower index %d > 107\n", | |
1782 | power_index); | |
1783 | power_index = 107; | |
1784 | } | |
1785 | if (power_index < 0) { | |
1786 | IWL_WARNING("txpower index %d < 0\n", | |
1787 | power_index); | |
1788 | power_index = 0; | |
1789 | } | |
1790 | ||
1791 | /* fill txpower command for this rate/chain */ | |
1792 | tx_power.s.radio_tx_gain[c] = | |
1793 | gain_table[band][power_index].radio; | |
1794 | tx_power.s.dsp_predis_atten[c] = | |
1795 | gain_table[band][power_index].dsp; | |
1796 | ||
1797 | IWL_DEBUG_TXPOWER("chain %d mimo %d index %d " | |
1798 | "gain 0x%02x dsp %d\n", | |
1799 | c, atten_value, power_index, | |
1800 | tx_power.s.radio_tx_gain[c], | |
1801 | tx_power.s.dsp_predis_atten[c]); | |
1802 | }/* for each chain */ | |
1803 | ||
1804 | tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw); | |
1805 | ||
1806 | }/* for each rate */ | |
1807 | ||
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | /** | |
bb8c093b | 1812 | * iwl4965_hw_reg_send_txpower - Configure the TXPOWER level user limit |
b481de9c ZY |
1813 | * |
1814 | * Uses the active RXON for channel, band, and characteristics (fat, high) | |
1815 | * The power limit is taken from priv->user_txpower_limit. | |
1816 | */ | |
c79dd5b5 | 1817 | int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv) |
b481de9c | 1818 | { |
bb8c093b | 1819 | struct iwl4965_txpowertable_cmd cmd = { 0 }; |
857485c0 | 1820 | int ret; |
b481de9c ZY |
1821 | u8 band = 0; |
1822 | u8 is_fat = 0; | |
1823 | u8 ctrl_chan_high = 0; | |
1824 | ||
1825 | if (test_bit(STATUS_SCANNING, &priv->status)) { | |
1826 | /* If this gets hit a lot, switch it to a BUG() and catch | |
1827 | * the stack trace to find out who is calling this during | |
1828 | * a scan. */ | |
1829 | IWL_WARNING("TX Power requested while scanning!\n"); | |
1830 | return -EAGAIN; | |
1831 | } | |
1832 | ||
8318d78a | 1833 | band = priv->band == IEEE80211_BAND_2GHZ; |
b481de9c ZY |
1834 | |
1835 | is_fat = is_fat_channel(priv->active_rxon.flags); | |
1836 | ||
1837 | if (is_fat && | |
1838 | (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK)) | |
1839 | ctrl_chan_high = 1; | |
1840 | ||
1841 | cmd.band = band; | |
1842 | cmd.channel = priv->active_rxon.channel; | |
1843 | ||
857485c0 | 1844 | ret = iwl4965_fill_txpower_tbl(priv, band, |
b481de9c ZY |
1845 | le16_to_cpu(priv->active_rxon.channel), |
1846 | is_fat, ctrl_chan_high, &cmd.tx_power); | |
857485c0 TW |
1847 | if (ret) |
1848 | goto out; | |
b481de9c | 1849 | |
857485c0 TW |
1850 | ret = iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd); |
1851 | ||
1852 | out: | |
1853 | return ret; | |
b481de9c ZY |
1854 | } |
1855 | ||
7e8c519e TW |
1856 | static int iwl4965_send_rxon_assoc(struct iwl_priv *priv) |
1857 | { | |
1858 | int ret = 0; | |
1859 | struct iwl4965_rxon_assoc_cmd rxon_assoc; | |
1860 | const struct iwl4965_rxon_cmd *rxon1 = &priv->staging_rxon; | |
1861 | const struct iwl4965_rxon_cmd *rxon2 = &priv->active_rxon; | |
1862 | ||
1863 | if ((rxon1->flags == rxon2->flags) && | |
1864 | (rxon1->filter_flags == rxon2->filter_flags) && | |
1865 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
1866 | (rxon1->ofdm_ht_single_stream_basic_rates == | |
1867 | rxon2->ofdm_ht_single_stream_basic_rates) && | |
1868 | (rxon1->ofdm_ht_dual_stream_basic_rates == | |
1869 | rxon2->ofdm_ht_dual_stream_basic_rates) && | |
1870 | (rxon1->rx_chain == rxon2->rx_chain) && | |
1871 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
1872 | IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); | |
1873 | return 0; | |
1874 | } | |
1875 | ||
1876 | rxon_assoc.flags = priv->staging_rxon.flags; | |
1877 | rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; | |
1878 | rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; | |
1879 | rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; | |
1880 | rxon_assoc.reserved = 0; | |
1881 | rxon_assoc.ofdm_ht_single_stream_basic_rates = | |
1882 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates; | |
1883 | rxon_assoc.ofdm_ht_dual_stream_basic_rates = | |
1884 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates; | |
1885 | rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain; | |
1886 | ||
1887 | ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC, | |
1888 | sizeof(rxon_assoc), &rxon_assoc, NULL); | |
1889 | if (ret) | |
1890 | return ret; | |
1891 | ||
1892 | return ret; | |
1893 | } | |
1894 | ||
1895 | ||
c79dd5b5 | 1896 | int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) |
b481de9c ZY |
1897 | { |
1898 | int rc; | |
1899 | u8 band = 0; | |
1900 | u8 is_fat = 0; | |
1901 | u8 ctrl_chan_high = 0; | |
bb8c093b | 1902 | struct iwl4965_channel_switch_cmd cmd = { 0 }; |
bf85ea4f | 1903 | const struct iwl_channel_info *ch_info; |
b481de9c | 1904 | |
8318d78a | 1905 | band = priv->band == IEEE80211_BAND_2GHZ; |
b481de9c | 1906 | |
8622e705 | 1907 | ch_info = iwl_get_channel_info(priv, priv->band, channel); |
b481de9c ZY |
1908 | |
1909 | is_fat = is_fat_channel(priv->staging_rxon.flags); | |
1910 | ||
1911 | if (is_fat && | |
1912 | (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK)) | |
1913 | ctrl_chan_high = 1; | |
1914 | ||
1915 | cmd.band = band; | |
1916 | cmd.expect_beacon = 0; | |
1917 | cmd.channel = cpu_to_le16(channel); | |
1918 | cmd.rxon_flags = priv->active_rxon.flags; | |
1919 | cmd.rxon_filter_flags = priv->active_rxon.filter_flags; | |
1920 | cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time); | |
1921 | if (ch_info) | |
1922 | cmd.expect_beacon = is_channel_radar(ch_info); | |
1923 | else | |
1924 | cmd.expect_beacon = 1; | |
1925 | ||
1926 | rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_fat, | |
1927 | ctrl_chan_high, &cmd.tx_power); | |
1928 | if (rc) { | |
1929 | IWL_DEBUG_11H("error:%d fill txpower_tbl\n", rc); | |
1930 | return rc; | |
1931 | } | |
1932 | ||
857485c0 | 1933 | rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd); |
b481de9c ZY |
1934 | return rc; |
1935 | } | |
1936 | ||
1937 | #define RTS_HCCA_RETRY_LIMIT 3 | |
1938 | #define RTS_DFAULT_RETRY_LIMIT 60 | |
1939 | ||
c79dd5b5 | 1940 | void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv, |
857485c0 | 1941 | struct iwl_cmd *cmd, |
b481de9c ZY |
1942 | struct ieee80211_tx_control *ctrl, |
1943 | struct ieee80211_hdr *hdr, int sta_id, | |
1944 | int is_hcca) | |
1945 | { | |
87e4f7df | 1946 | struct iwl4965_tx_cmd *tx = &cmd->cmd.tx; |
b481de9c ZY |
1947 | u8 rts_retry_limit = 0; |
1948 | u8 data_retry_limit = 0; | |
b481de9c | 1949 | u16 fc = le16_to_cpu(hdr->frame_control); |
87e4f7df TW |
1950 | u8 rate_plcp; |
1951 | u16 rate_flags = 0; | |
8318d78a | 1952 | int rate_idx = min(ctrl->tx_rate->hw_value & 0xffff, IWL_RATE_COUNT - 1); |
b481de9c | 1953 | |
87e4f7df | 1954 | rate_plcp = iwl4965_rates[rate_idx].plcp; |
b481de9c ZY |
1955 | |
1956 | rts_retry_limit = (is_hcca) ? | |
1957 | RTS_HCCA_RETRY_LIMIT : RTS_DFAULT_RETRY_LIMIT; | |
1958 | ||
87e4f7df TW |
1959 | if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE)) |
1960 | rate_flags |= RATE_MCS_CCK_MSK; | |
1961 | ||
1962 | ||
b481de9c ZY |
1963 | if (ieee80211_is_probe_response(fc)) { |
1964 | data_retry_limit = 3; | |
1965 | if (data_retry_limit < rts_retry_limit) | |
1966 | rts_retry_limit = data_retry_limit; | |
1967 | } else | |
1968 | data_retry_limit = IWL_DEFAULT_TX_RETRY; | |
1969 | ||
1970 | if (priv->data_retry_limit != -1) | |
1971 | data_retry_limit = priv->data_retry_limit; | |
1972 | ||
87e4f7df TW |
1973 | |
1974 | if (ieee80211_is_data(fc)) { | |
1975 | tx->initial_rate_index = 0; | |
1976 | tx->tx_flags |= TX_CMD_FLG_STA_RATE_MSK; | |
1977 | } else { | |
b481de9c ZY |
1978 | switch (fc & IEEE80211_FCTL_STYPE) { |
1979 | case IEEE80211_STYPE_AUTH: | |
1980 | case IEEE80211_STYPE_DEAUTH: | |
1981 | case IEEE80211_STYPE_ASSOC_REQ: | |
1982 | case IEEE80211_STYPE_REASSOC_REQ: | |
87e4f7df TW |
1983 | if (tx->tx_flags & TX_CMD_FLG_RTS_MSK) { |
1984 | tx->tx_flags &= ~TX_CMD_FLG_RTS_MSK; | |
1985 | tx->tx_flags |= TX_CMD_FLG_CTS_MSK; | |
b481de9c ZY |
1986 | } |
1987 | break; | |
1988 | default: | |
1989 | break; | |
1990 | } | |
87e4f7df TW |
1991 | |
1992 | /* Alternate between antenna A and B for successive frames */ | |
1993 | if (priv->use_ant_b_for_management_frame) { | |
1994 | priv->use_ant_b_for_management_frame = 0; | |
1995 | rate_flags |= RATE_MCS_ANT_B_MSK; | |
1996 | } else { | |
1997 | priv->use_ant_b_for_management_frame = 1; | |
1998 | rate_flags |= RATE_MCS_ANT_A_MSK; | |
1999 | } | |
b481de9c ZY |
2000 | } |
2001 | ||
87e4f7df TW |
2002 | tx->rts_retry_limit = rts_retry_limit; |
2003 | tx->data_retry_limit = data_retry_limit; | |
2004 | tx->rate_n_flags = iwl4965_hw_set_rate_n_flags(rate_plcp, rate_flags); | |
b481de9c ZY |
2005 | } |
2006 | ||
d67f5489 | 2007 | static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv) |
b481de9c | 2008 | { |
059ff826 TW |
2009 | struct iwl4965_shared *s = priv->shared_virt; |
2010 | return le32_to_cpu(s->rb_closed) & 0xFFF; | |
b481de9c ZY |
2011 | } |
2012 | ||
c79dd5b5 | 2013 | int iwl4965_hw_get_temperature(struct iwl_priv *priv) |
b481de9c ZY |
2014 | { |
2015 | return priv->temperature; | |
2016 | } | |
2017 | ||
c79dd5b5 | 2018 | unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, |
bb8c093b | 2019 | struct iwl4965_frame *frame, u8 rate) |
b481de9c | 2020 | { |
bb8c093b | 2021 | struct iwl4965_tx_beacon_cmd *tx_beacon_cmd; |
b481de9c ZY |
2022 | unsigned int frame_size; |
2023 | ||
2024 | tx_beacon_cmd = &frame->u.beacon; | |
2025 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); | |
2026 | ||
5425e490 | 2027 | tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
2028 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
2029 | ||
bb8c093b | 2030 | frame_size = iwl4965_fill_beacon_frame(priv, |
b481de9c | 2031 | tx_beacon_cmd->frame, |
bb8c093b | 2032 | iwl4965_broadcast_addr, |
b481de9c ZY |
2033 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); |
2034 | ||
2035 | BUG_ON(frame_size > MAX_MPDU_SIZE); | |
2036 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); | |
2037 | ||
2038 | if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP)) | |
2039 | tx_beacon_cmd->tx.rate_n_flags = | |
bb8c093b | 2040 | iwl4965_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK); |
b481de9c ZY |
2041 | else |
2042 | tx_beacon_cmd->tx.rate_n_flags = | |
bb8c093b | 2043 | iwl4965_hw_set_rate_n_flags(rate, 0); |
b481de9c ZY |
2044 | |
2045 | tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK | | |
2046 | TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK); | |
2047 | return (sizeof(*tx_beacon_cmd) + frame_size); | |
2048 | } | |
2049 | ||
c79dd5b5 | 2050 | int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr, |
b481de9c ZY |
2051 | dma_addr_t addr, u16 len) |
2052 | { | |
2053 | int index, is_odd; | |
1053d35f | 2054 | struct iwl_tfd_frame *tfd = ptr; |
b481de9c ZY |
2055 | u32 num_tbs = IWL_GET_BITS(*tfd, num_tbs); |
2056 | ||
8b6eaea8 | 2057 | /* Each TFD can point to a maximum 20 Tx buffers */ |
b481de9c ZY |
2058 | if ((num_tbs >= MAX_NUM_OF_TBS) || (num_tbs < 0)) { |
2059 | IWL_ERROR("Error can not send more than %d chunks\n", | |
2060 | MAX_NUM_OF_TBS); | |
2061 | return -EINVAL; | |
2062 | } | |
2063 | ||
2064 | index = num_tbs / 2; | |
2065 | is_odd = num_tbs & 0x1; | |
2066 | ||
2067 | if (!is_odd) { | |
2068 | tfd->pa[index].tb1_addr = cpu_to_le32(addr); | |
2069 | IWL_SET_BITS(tfd->pa[index], tb1_addr_hi, | |
6a218f6f | 2070 | iwl_get_dma_hi_address(addr)); |
b481de9c ZY |
2071 | IWL_SET_BITS(tfd->pa[index], tb1_len, len); |
2072 | } else { | |
2073 | IWL_SET_BITS(tfd->pa[index], tb2_addr_lo16, | |
2074 | (u32) (addr & 0xffff)); | |
2075 | IWL_SET_BITS(tfd->pa[index], tb2_addr_hi20, addr >> 16); | |
2076 | IWL_SET_BITS(tfd->pa[index], tb2_len, len); | |
2077 | } | |
2078 | ||
2079 | IWL_SET_BITS(*tfd, num_tbs, num_tbs + 1); | |
2080 | ||
2081 | return 0; | |
2082 | } | |
2083 | ||
399f4900 RR |
2084 | static int iwl4965_alloc_shared_mem(struct iwl_priv *priv) |
2085 | { | |
2086 | priv->shared_virt = pci_alloc_consistent(priv->pci_dev, | |
2087 | sizeof(struct iwl4965_shared), | |
2088 | &priv->shared_phys); | |
2089 | if (!priv->shared_virt) | |
2090 | return -ENOMEM; | |
2091 | ||
2092 | memset(priv->shared_virt, 0, sizeof(struct iwl4965_shared)); | |
2093 | ||
d67f5489 RR |
2094 | priv->rb_closed_offset = offsetof(struct iwl4965_shared, rb_closed); |
2095 | ||
399f4900 RR |
2096 | return 0; |
2097 | } | |
2098 | ||
2099 | static void iwl4965_free_shared_mem(struct iwl_priv *priv) | |
2100 | { | |
2101 | if (priv->shared_virt) | |
2102 | pci_free_consistent(priv->pci_dev, | |
2103 | sizeof(struct iwl4965_shared), | |
2104 | priv->shared_virt, | |
2105 | priv->shared_phys); | |
2106 | } | |
2107 | ||
8b6eaea8 | 2108 | /** |
e2a722eb | 2109 | * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array |
8b6eaea8 | 2110 | */ |
e2a722eb | 2111 | static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv, |
16466903 | 2112 | struct iwl_tx_queue *txq, |
e2a722eb | 2113 | u16 byte_cnt) |
b481de9c ZY |
2114 | { |
2115 | int len; | |
2116 | int txq_id = txq->q.id; | |
059ff826 | 2117 | struct iwl4965_shared *shared_data = priv->shared_virt; |
b481de9c | 2118 | |
b481de9c ZY |
2119 | len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; |
2120 | ||
8b6eaea8 | 2121 | /* Set up byte count within first 256 entries */ |
b481de9c | 2122 | IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. |
fc4b6853 | 2123 | tfd_offset[txq->q.write_ptr], byte_cnt, len); |
b481de9c | 2124 | |
8b6eaea8 | 2125 | /* If within first 64 entries, duplicate at end */ |
038669e4 | 2126 | if (txq->q.write_ptr < IWL49_MAX_WIN_SIZE) |
b481de9c | 2127 | IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. |
038669e4 | 2128 | tfd_offset[IWL49_QUEUE_SIZE + txq->q.write_ptr], |
b481de9c | 2129 | byte_cnt, len); |
b481de9c ZY |
2130 | } |
2131 | ||
b481de9c ZY |
2132 | /** |
2133 | * sign_extend - Sign extend a value using specified bit as sign-bit | |
2134 | * | |
2135 | * Example: sign_extend(9, 3) would return -7 as bit3 of 1001b is 1 | |
2136 | * and bit0..2 is 001b which when sign extended to 1111111111111001b is -7. | |
2137 | * | |
2138 | * @param oper value to sign extend | |
2139 | * @param index 0 based bit index (0<=index<32) to sign bit | |
2140 | */ | |
2141 | static s32 sign_extend(u32 oper, int index) | |
2142 | { | |
2143 | u8 shift = 31 - index; | |
2144 | ||
2145 | return (s32)(oper << shift) >> shift; | |
2146 | } | |
2147 | ||
2148 | /** | |
2149 | * iwl4965_get_temperature - return the calibrated temperature (in Kelvin) | |
2150 | * @statistics: Provides the temperature reading from the uCode | |
2151 | * | |
2152 | * A return of <0 indicates bogus data in the statistics | |
2153 | */ | |
c79dd5b5 | 2154 | int iwl4965_get_temperature(const struct iwl_priv *priv) |
b481de9c ZY |
2155 | { |
2156 | s32 temperature; | |
2157 | s32 vt; | |
2158 | s32 R1, R2, R3; | |
2159 | u32 R4; | |
2160 | ||
2161 | if (test_bit(STATUS_TEMPERATURE, &priv->status) && | |
2162 | (priv->statistics.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK)) { | |
2163 | IWL_DEBUG_TEMP("Running FAT temperature calibration\n"); | |
2164 | R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]); | |
2165 | R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]); | |
2166 | R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]); | |
2167 | R4 = le32_to_cpu(priv->card_alive_init.therm_r4[1]); | |
2168 | } else { | |
2169 | IWL_DEBUG_TEMP("Running temperature calibration\n"); | |
2170 | R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]); | |
2171 | R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]); | |
2172 | R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]); | |
2173 | R4 = le32_to_cpu(priv->card_alive_init.therm_r4[0]); | |
2174 | } | |
2175 | ||
2176 | /* | |
8b6eaea8 | 2177 | * Temperature is only 23 bits, so sign extend out to 32. |
b481de9c ZY |
2178 | * |
2179 | * NOTE If we haven't received a statistics notification yet | |
2180 | * with an updated temperature, use R4 provided to us in the | |
8b6eaea8 BC |
2181 | * "initialize" ALIVE response. |
2182 | */ | |
b481de9c ZY |
2183 | if (!test_bit(STATUS_TEMPERATURE, &priv->status)) |
2184 | vt = sign_extend(R4, 23); | |
2185 | else | |
2186 | vt = sign_extend( | |
2187 | le32_to_cpu(priv->statistics.general.temperature), 23); | |
2188 | ||
2189 | IWL_DEBUG_TEMP("Calib values R[1-3]: %d %d %d R4: %d\n", | |
2190 | R1, R2, R3, vt); | |
2191 | ||
2192 | if (R3 == R1) { | |
2193 | IWL_ERROR("Calibration conflict R1 == R3\n"); | |
2194 | return -1; | |
2195 | } | |
2196 | ||
2197 | /* Calculate temperature in degrees Kelvin, adjust by 97%. | |
2198 | * Add offset to center the adjustment around 0 degrees Centigrade. */ | |
2199 | temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2); | |
2200 | temperature /= (R3 - R1); | |
2201 | temperature = (temperature * 97) / 100 + | |
2202 | TEMPERATURE_CALIB_KELVIN_OFFSET; | |
2203 | ||
2204 | IWL_DEBUG_TEMP("Calibrated temperature: %dK, %dC\n", temperature, | |
2205 | KELVIN_TO_CELSIUS(temperature)); | |
2206 | ||
2207 | return temperature; | |
2208 | } | |
2209 | ||
2210 | /* Adjust Txpower only if temperature variance is greater than threshold. */ | |
2211 | #define IWL_TEMPERATURE_THRESHOLD 3 | |
2212 | ||
2213 | /** | |
2214 | * iwl4965_is_temp_calib_needed - determines if new calibration is needed | |
2215 | * | |
2216 | * If the temperature changed has changed sufficiently, then a recalibration | |
2217 | * is needed. | |
2218 | * | |
2219 | * Assumes caller will replace priv->last_temperature once calibration | |
2220 | * executed. | |
2221 | */ | |
c79dd5b5 | 2222 | static int iwl4965_is_temp_calib_needed(struct iwl_priv *priv) |
b481de9c ZY |
2223 | { |
2224 | int temp_diff; | |
2225 | ||
2226 | if (!test_bit(STATUS_STATISTICS, &priv->status)) { | |
2227 | IWL_DEBUG_TEMP("Temperature not updated -- no statistics.\n"); | |
2228 | return 0; | |
2229 | } | |
2230 | ||
2231 | temp_diff = priv->temperature - priv->last_temperature; | |
2232 | ||
2233 | /* get absolute value */ | |
2234 | if (temp_diff < 0) { | |
2235 | IWL_DEBUG_POWER("Getting cooler, delta %d, \n", temp_diff); | |
2236 | temp_diff = -temp_diff; | |
2237 | } else if (temp_diff == 0) | |
2238 | IWL_DEBUG_POWER("Same temp, \n"); | |
2239 | else | |
2240 | IWL_DEBUG_POWER("Getting warmer, delta %d, \n", temp_diff); | |
2241 | ||
2242 | if (temp_diff < IWL_TEMPERATURE_THRESHOLD) { | |
2243 | IWL_DEBUG_POWER("Thermal txpower calib not needed\n"); | |
2244 | return 0; | |
2245 | } | |
2246 | ||
2247 | IWL_DEBUG_POWER("Thermal txpower calib needed\n"); | |
2248 | ||
2249 | return 1; | |
2250 | } | |
2251 | ||
2252 | /* Calculate noise level, based on measurements during network silence just | |
2253 | * before arriving beacon. This measurement can be done only if we know | |
2254 | * exactly when to expect beacons, therefore only when we're associated. */ | |
c79dd5b5 | 2255 | static void iwl4965_rx_calc_noise(struct iwl_priv *priv) |
b481de9c ZY |
2256 | { |
2257 | struct statistics_rx_non_phy *rx_info | |
2258 | = &(priv->statistics.rx.general); | |
2259 | int num_active_rx = 0; | |
2260 | int total_silence = 0; | |
2261 | int bcn_silence_a = | |
2262 | le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER; | |
2263 | int bcn_silence_b = | |
2264 | le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER; | |
2265 | int bcn_silence_c = | |
2266 | le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER; | |
2267 | ||
2268 | if (bcn_silence_a) { | |
2269 | total_silence += bcn_silence_a; | |
2270 | num_active_rx++; | |
2271 | } | |
2272 | if (bcn_silence_b) { | |
2273 | total_silence += bcn_silence_b; | |
2274 | num_active_rx++; | |
2275 | } | |
2276 | if (bcn_silence_c) { | |
2277 | total_silence += bcn_silence_c; | |
2278 | num_active_rx++; | |
2279 | } | |
2280 | ||
2281 | /* Average among active antennas */ | |
2282 | if (num_active_rx) | |
2283 | priv->last_rx_noise = (total_silence / num_active_rx) - 107; | |
2284 | else | |
2285 | priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE; | |
2286 | ||
2287 | IWL_DEBUG_CALIB("inband silence a %u, b %u, c %u, dBm %d\n", | |
2288 | bcn_silence_a, bcn_silence_b, bcn_silence_c, | |
2289 | priv->last_rx_noise); | |
2290 | } | |
2291 | ||
a55360e4 TW |
2292 | void iwl4965_hw_rx_statistics(struct iwl_priv *priv, |
2293 | struct iwl_rx_mem_buffer *rxb) | |
b481de9c | 2294 | { |
db11d634 | 2295 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2296 | int change; |
2297 | s32 temp; | |
2298 | ||
2299 | IWL_DEBUG_RX("Statistics notification received (%d vs %d).\n", | |
2300 | (int)sizeof(priv->statistics), pkt->len); | |
2301 | ||
2302 | change = ((priv->statistics.general.temperature != | |
2303 | pkt->u.stats.general.temperature) || | |
2304 | ((priv->statistics.flag & | |
2305 | STATISTICS_REPLY_FLG_FAT_MODE_MSK) != | |
2306 | (pkt->u.stats.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK))); | |
2307 | ||
2308 | memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics)); | |
2309 | ||
2310 | set_bit(STATUS_STATISTICS, &priv->status); | |
2311 | ||
2312 | /* Reschedule the statistics timer to occur in | |
2313 | * REG_RECALIB_PERIOD seconds to ensure we get a | |
2314 | * thermal update even if the uCode doesn't give | |
2315 | * us one */ | |
2316 | mod_timer(&priv->statistics_periodic, jiffies + | |
2317 | msecs_to_jiffies(REG_RECALIB_PERIOD * 1000)); | |
2318 | ||
2319 | if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) && | |
2320 | (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) { | |
2321 | iwl4965_rx_calc_noise(priv); | |
f0832f13 | 2322 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
b481de9c ZY |
2323 | queue_work(priv->workqueue, &priv->sensitivity_work); |
2324 | #endif | |
2325 | } | |
2326 | ||
ab53d8af MA |
2327 | iwl_leds_background(priv); |
2328 | ||
b481de9c ZY |
2329 | /* If the hardware hasn't reported a change in |
2330 | * temperature then don't bother computing a | |
2331 | * calibrated temperature value */ | |
2332 | if (!change) | |
2333 | return; | |
2334 | ||
2335 | temp = iwl4965_get_temperature(priv); | |
2336 | if (temp < 0) | |
2337 | return; | |
2338 | ||
2339 | if (priv->temperature != temp) { | |
2340 | if (priv->temperature) | |
2341 | IWL_DEBUG_TEMP("Temperature changed " | |
2342 | "from %dC to %dC\n", | |
2343 | KELVIN_TO_CELSIUS(priv->temperature), | |
2344 | KELVIN_TO_CELSIUS(temp)); | |
2345 | else | |
2346 | IWL_DEBUG_TEMP("Temperature " | |
2347 | "initialized to %dC\n", | |
2348 | KELVIN_TO_CELSIUS(temp)); | |
2349 | } | |
2350 | ||
2351 | priv->temperature = temp; | |
2352 | set_bit(STATUS_TEMPERATURE, &priv->status); | |
2353 | ||
2354 | if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) && | |
2355 | iwl4965_is_temp_calib_needed(priv)) | |
2356 | queue_work(priv->workqueue, &priv->txpower_work); | |
2357 | } | |
2358 | ||
c79dd5b5 | 2359 | static void iwl4965_add_radiotap(struct iwl_priv *priv, |
12342c47 ZY |
2360 | struct sk_buff *skb, |
2361 | struct iwl4965_rx_phy_res *rx_start, | |
2362 | struct ieee80211_rx_status *stats, | |
2363 | u32 ampdu_status) | |
2364 | { | |
566bfe5a | 2365 | s8 signal = stats->signal; |
12342c47 | 2366 | s8 noise = 0; |
8318d78a | 2367 | int rate = stats->rate_idx; |
12342c47 | 2368 | u64 tsf = stats->mactime; |
a0b484fe | 2369 | __le16 antenna; |
12342c47 ZY |
2370 | __le16 phy_flags_hw = rx_start->phy_flags; |
2371 | struct iwl4965_rt_rx_hdr { | |
2372 | struct ieee80211_radiotap_header rt_hdr; | |
2373 | __le64 rt_tsf; /* TSF */ | |
2374 | u8 rt_flags; /* radiotap packet flags */ | |
2375 | u8 rt_rate; /* rate in 500kb/s */ | |
2376 | __le16 rt_channelMHz; /* channel in MHz */ | |
2377 | __le16 rt_chbitmask; /* channel bitfield */ | |
2378 | s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ | |
2379 | s8 rt_dbmnoise; | |
2380 | u8 rt_antenna; /* antenna number */ | |
2381 | } __attribute__ ((packed)) *iwl4965_rt; | |
2382 | ||
2383 | /* TODO: We won't have enough headroom for HT frames. Fix it later. */ | |
2384 | if (skb_headroom(skb) < sizeof(*iwl4965_rt)) { | |
2385 | if (net_ratelimit()) | |
2386 | printk(KERN_ERR "not enough headroom [%d] for " | |
01c20986 | 2387 | "radiotap head [%zd]\n", |
12342c47 ZY |
2388 | skb_headroom(skb), sizeof(*iwl4965_rt)); |
2389 | return; | |
2390 | } | |
2391 | ||
2392 | /* put radiotap header in front of 802.11 header and data */ | |
2393 | iwl4965_rt = (void *)skb_push(skb, sizeof(*iwl4965_rt)); | |
2394 | ||
2395 | /* initialise radiotap header */ | |
2396 | iwl4965_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
2397 | iwl4965_rt->rt_hdr.it_pad = 0; | |
2398 | ||
2399 | /* total header + data */ | |
2400 | put_unaligned(cpu_to_le16(sizeof(*iwl4965_rt)), | |
2401 | &iwl4965_rt->rt_hdr.it_len); | |
2402 | ||
2403 | /* Indicate all the fields we add to the radiotap header */ | |
2404 | put_unaligned(cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) | | |
2405 | (1 << IEEE80211_RADIOTAP_FLAGS) | | |
2406 | (1 << IEEE80211_RADIOTAP_RATE) | | |
2407 | (1 << IEEE80211_RADIOTAP_CHANNEL) | | |
2408 | (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | | |
2409 | (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | | |
2410 | (1 << IEEE80211_RADIOTAP_ANTENNA)), | |
2411 | &iwl4965_rt->rt_hdr.it_present); | |
2412 | ||
2413 | /* Zero the flags, we'll add to them as we go */ | |
2414 | iwl4965_rt->rt_flags = 0; | |
2415 | ||
2416 | put_unaligned(cpu_to_le64(tsf), &iwl4965_rt->rt_tsf); | |
2417 | ||
2418 | iwl4965_rt->rt_dbmsignal = signal; | |
2419 | iwl4965_rt->rt_dbmnoise = noise; | |
2420 | ||
2421 | /* Convert the channel frequency and set the flags */ | |
2422 | put_unaligned(cpu_to_le16(stats->freq), &iwl4965_rt->rt_channelMHz); | |
2423 | if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) | |
2424 | put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | | |
2425 | IEEE80211_CHAN_5GHZ), | |
2426 | &iwl4965_rt->rt_chbitmask); | |
2427 | else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) | |
2428 | put_unaligned(cpu_to_le16(IEEE80211_CHAN_CCK | | |
2429 | IEEE80211_CHAN_2GHZ), | |
2430 | &iwl4965_rt->rt_chbitmask); | |
2431 | else /* 802.11g */ | |
2432 | put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | | |
2433 | IEEE80211_CHAN_2GHZ), | |
2434 | &iwl4965_rt->rt_chbitmask); | |
2435 | ||
12342c47 ZY |
2436 | if (rate == -1) |
2437 | iwl4965_rt->rt_rate = 0; | |
2438 | else | |
2439 | iwl4965_rt->rt_rate = iwl4965_rates[rate].ieee; | |
2440 | ||
2441 | /* | |
2442 | * "antenna number" | |
2443 | * | |
2444 | * It seems that the antenna field in the phy flags value | |
2445 | * is actually a bitfield. This is undefined by radiotap, | |
2446 | * it wants an actual antenna number but I always get "7" | |
2447 | * for most legacy frames I receive indicating that the | |
2448 | * same frame was received on all three RX chains. | |
2449 | * | |
2450 | * I think this field should be removed in favour of a | |
2451 | * new 802.11n radiotap field "RX chains" that is defined | |
2452 | * as a bitmask. | |
2453 | */ | |
a0b484fe JB |
2454 | antenna = phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK; |
2455 | iwl4965_rt->rt_antenna = le16_to_cpu(antenna) >> 4; | |
12342c47 ZY |
2456 | |
2457 | /* set the preamble flag if appropriate */ | |
2458 | if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) | |
2459 | iwl4965_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; | |
2460 | ||
2461 | stats->flag |= RX_FLAG_RADIOTAP; | |
2462 | } | |
2463 | ||
19758bef TW |
2464 | static void iwl_update_rx_stats(struct iwl_priv *priv, u16 fc, u16 len) |
2465 | { | |
2466 | /* 0 - mgmt, 1 - cnt, 2 - data */ | |
2467 | int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2; | |
2468 | priv->rx_stats[idx].cnt++; | |
2469 | priv->rx_stats[idx].bytes += len; | |
2470 | } | |
2471 | ||
3ec47732 EG |
2472 | /* |
2473 | * returns non-zero if packet should be dropped | |
2474 | */ | |
2475 | static int iwl4965_set_decrypted_flag(struct iwl_priv *priv, | |
2476 | struct ieee80211_hdr *hdr, | |
2477 | u32 decrypt_res, | |
2478 | struct ieee80211_rx_status *stats) | |
2479 | { | |
2480 | u16 fc = le16_to_cpu(hdr->frame_control); | |
2481 | ||
2482 | if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) | |
2483 | return 0; | |
2484 | ||
2485 | if (!(fc & IEEE80211_FCTL_PROTECTED)) | |
2486 | return 0; | |
2487 | ||
2488 | IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); | |
2489 | switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2490 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2491 | /* The uCode has got a bad phase 1 Key, pushes the packet. | |
2492 | * Decryption will be done in SW. */ | |
2493 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2494 | RX_RES_STATUS_BAD_KEY_TTAK) | |
2495 | break; | |
2496 | ||
2497 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2498 | RX_RES_STATUS_BAD_ICV_MIC) { | |
2499 | /* bad ICV, the packet is destroyed since the | |
2500 | * decryption is inplace, drop it */ | |
2501 | IWL_DEBUG_RX("Packet destroyed\n"); | |
2502 | return -1; | |
2503 | } | |
2504 | case RX_RES_STATUS_SEC_TYPE_WEP: | |
2505 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2506 | if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == | |
2507 | RX_RES_STATUS_DECRYPT_OK) { | |
2508 | IWL_DEBUG_RX("hw decrypt successfully!!!\n"); | |
2509 | stats->flag |= RX_FLAG_DECRYPTED; | |
2510 | } | |
2511 | break; | |
2512 | ||
2513 | default: | |
2514 | break; | |
2515 | } | |
2516 | return 0; | |
2517 | } | |
2518 | ||
bf403db8 | 2519 | static u32 iwl4965_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in) |
17e476b8 EG |
2520 | { |
2521 | u32 decrypt_out = 0; | |
2522 | ||
2523 | if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) == | |
2524 | RX_RES_STATUS_STATION_FOUND) | |
2525 | decrypt_out |= (RX_RES_STATUS_STATION_FOUND | | |
2526 | RX_RES_STATUS_NO_STATION_INFO_MISMATCH); | |
2527 | ||
2528 | decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK); | |
2529 | ||
2530 | /* packet was not encrypted */ | |
2531 | if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == | |
2532 | RX_RES_STATUS_SEC_TYPE_NONE) | |
2533 | return decrypt_out; | |
2534 | ||
2535 | /* packet was encrypted with unknown alg */ | |
2536 | if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == | |
2537 | RX_RES_STATUS_SEC_TYPE_ERR) | |
2538 | return decrypt_out; | |
2539 | ||
2540 | /* decryption was not done in HW */ | |
2541 | if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) != | |
2542 | RX_MPDU_RES_STATUS_DEC_DONE_MSK) | |
2543 | return decrypt_out; | |
2544 | ||
2545 | switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) { | |
2546 | ||
2547 | case RX_RES_STATUS_SEC_TYPE_CCMP: | |
2548 | /* alg is CCM: check MIC only */ | |
2549 | if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK)) | |
2550 | /* Bad MIC */ | |
2551 | decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; | |
2552 | else | |
2553 | decrypt_out |= RX_RES_STATUS_DECRYPT_OK; | |
2554 | ||
2555 | break; | |
2556 | ||
2557 | case RX_RES_STATUS_SEC_TYPE_TKIP: | |
2558 | if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) { | |
2559 | /* Bad TTAK */ | |
2560 | decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK; | |
2561 | break; | |
2562 | } | |
2563 | /* fall through if TTAK OK */ | |
2564 | default: | |
2565 | if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK)) | |
2566 | decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; | |
2567 | else | |
2568 | decrypt_out |= RX_RES_STATUS_DECRYPT_OK; | |
2569 | break; | |
2570 | }; | |
2571 | ||
2572 | IWL_DEBUG_RX("decrypt_in:0x%x decrypt_out = 0x%x\n", | |
2573 | decrypt_in, decrypt_out); | |
2574 | ||
2575 | return decrypt_out; | |
2576 | } | |
2577 | ||
c79dd5b5 | 2578 | static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data, |
b481de9c | 2579 | int include_phy, |
a55360e4 | 2580 | struct iwl_rx_mem_buffer *rxb, |
b481de9c ZY |
2581 | struct ieee80211_rx_status *stats) |
2582 | { | |
db11d634 | 2583 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2584 | struct iwl4965_rx_phy_res *rx_start = (include_phy) ? |
2585 | (struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) : NULL; | |
2586 | struct ieee80211_hdr *hdr; | |
2587 | u16 len; | |
2588 | __le32 *rx_end; | |
2589 | unsigned int skblen; | |
2590 | u32 ampdu_status; | |
17e476b8 | 2591 | u32 ampdu_status_legacy; |
b481de9c ZY |
2592 | |
2593 | if (!include_phy && priv->last_phy_res[0]) | |
2594 | rx_start = (struct iwl4965_rx_phy_res *)&priv->last_phy_res[1]; | |
2595 | ||
2596 | if (!rx_start) { | |
2597 | IWL_ERROR("MPDU frame without a PHY data\n"); | |
2598 | return; | |
2599 | } | |
2600 | if (include_phy) { | |
2601 | hdr = (struct ieee80211_hdr *)((u8 *) & rx_start[1] + | |
2602 | rx_start->cfg_phy_cnt); | |
2603 | ||
2604 | len = le16_to_cpu(rx_start->byte_count); | |
2605 | ||
2606 | rx_end = (__le32 *) ((u8 *) & pkt->u.raw[0] + | |
2607 | sizeof(struct iwl4965_rx_phy_res) + | |
2608 | rx_start->cfg_phy_cnt + len); | |
2609 | ||
2610 | } else { | |
2611 | struct iwl4965_rx_mpdu_res_start *amsdu = | |
2612 | (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw; | |
2613 | ||
2614 | hdr = (struct ieee80211_hdr *)(pkt->u.raw + | |
2615 | sizeof(struct iwl4965_rx_mpdu_res_start)); | |
2616 | len = le16_to_cpu(amsdu->byte_count); | |
2617 | rx_start->byte_count = amsdu->byte_count; | |
2618 | rx_end = (__le32 *) (((u8 *) hdr) + len); | |
2619 | } | |
4419e39b AK |
2620 | /* In monitor mode allow 802.11 ACk frames (10 bytes) */ |
2621 | if (len > priv->hw_params.max_pkt_size || | |
2622 | len < ((priv->iw_mode == IEEE80211_IF_TYPE_MNTR) ? 10 : 16)) { | |
12342c47 | 2623 | IWL_WARNING("byte count out of range [16,4K] : %d\n", len); |
b481de9c ZY |
2624 | return; |
2625 | } | |
2626 | ||
2627 | ampdu_status = le32_to_cpu(*rx_end); | |
2628 | skblen = ((u8 *) rx_end - (u8 *) & pkt->u.raw[0]) + sizeof(u32); | |
2629 | ||
17e476b8 EG |
2630 | if (!include_phy) { |
2631 | /* New status scheme, need to translate */ | |
2632 | ampdu_status_legacy = ampdu_status; | |
bf403db8 | 2633 | ampdu_status = iwl4965_translate_rx_status(priv, ampdu_status); |
17e476b8 EG |
2634 | } |
2635 | ||
b481de9c ZY |
2636 | /* start from MAC */ |
2637 | skb_reserve(rxb->skb, (void *)hdr - (void *)pkt); | |
2638 | skb_put(rxb->skb, len); /* end where data ends */ | |
2639 | ||
2640 | /* We only process data packets if the interface is open */ | |
2641 | if (unlikely(!priv->is_open)) { | |
2642 | IWL_DEBUG_DROP_LIMIT | |
2643 | ("Dropping packet while interface is not open.\n"); | |
2644 | return; | |
2645 | } | |
2646 | ||
b481de9c ZY |
2647 | stats->flag = 0; |
2648 | hdr = (struct ieee80211_hdr *)rxb->skb->data; | |
2649 | ||
3ec47732 | 2650 | /* in case of HW accelerated crypto and bad decryption, drop */ |
099b40b7 | 2651 | if (!priv->hw_params.sw_crypto && |
3ec47732 EG |
2652 | iwl4965_set_decrypted_flag(priv, hdr, ampdu_status, stats)) |
2653 | return; | |
b481de9c | 2654 | |
12342c47 ZY |
2655 | if (priv->add_radiotap) |
2656 | iwl4965_add_radiotap(priv, rxb->skb, rx_start, stats, ampdu_status); | |
2657 | ||
19758bef | 2658 | iwl_update_rx_stats(priv, le16_to_cpu(hdr->frame_control), len); |
b481de9c ZY |
2659 | ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); |
2660 | priv->alloc_rxb_skb--; | |
2661 | rxb->skb = NULL; | |
b481de9c ZY |
2662 | } |
2663 | ||
2664 | /* Calc max signal level (dBm) among 3 possible receivers */ | |
bf403db8 EK |
2665 | static int iwl4965_calc_rssi(struct iwl_priv *priv, |
2666 | struct iwl4965_rx_phy_res *rx_resp) | |
b481de9c ZY |
2667 | { |
2668 | /* data from PHY/DSP regarding signal strength, etc., | |
2669 | * contents are always there, not configurable by host. */ | |
2670 | struct iwl4965_rx_non_cfg_phy *ncphy = | |
2671 | (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy; | |
2672 | u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL_AGC_DB_MASK) | |
2673 | >> IWL_AGC_DB_POS; | |
2674 | ||
2675 | u32 valid_antennae = | |
2676 | (le16_to_cpu(rx_resp->phy_flags) & RX_PHY_FLAGS_ANTENNAE_MASK) | |
2677 | >> RX_PHY_FLAGS_ANTENNAE_OFFSET; | |
2678 | u8 max_rssi = 0; | |
2679 | u32 i; | |
2680 | ||
2681 | /* Find max rssi among 3 possible receivers. | |
2682 | * These values are measured by the digital signal processor (DSP). | |
2683 | * They should stay fairly constant even as the signal strength varies, | |
2684 | * if the radio's automatic gain control (AGC) is working right. | |
2685 | * AGC value (see below) will provide the "interesting" info. */ | |
2686 | for (i = 0; i < 3; i++) | |
2687 | if (valid_antennae & (1 << i)) | |
2688 | max_rssi = max(ncphy->rssi_info[i << 1], max_rssi); | |
2689 | ||
2690 | IWL_DEBUG_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n", | |
2691 | ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4], | |
2692 | max_rssi, agc); | |
2693 | ||
2694 | /* dBm = max_rssi dB - agc dB - constant. | |
2695 | * Higher AGC (higher radio gain) means lower signal. */ | |
2696 | return (max_rssi - agc - IWL_RSSI_OFFSET); | |
2697 | } | |
2698 | ||
c79dd5b5 | 2699 | static void iwl4965_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
b481de9c ZY |
2700 | { |
2701 | unsigned long flags; | |
2702 | ||
2703 | spin_lock_irqsave(&priv->sta_lock, flags); | |
2704 | priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; | |
2705 | priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; | |
2706 | priv->stations[sta_id].sta.sta.modify_mask = 0; | |
2707 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
2708 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
2709 | ||
133636de | 2710 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
b481de9c ZY |
2711 | } |
2712 | ||
c79dd5b5 | 2713 | static void iwl4965_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr) |
b481de9c ZY |
2714 | { |
2715 | /* FIXME: need locking over ps_status ??? */ | |
947b13a7 | 2716 | u8 sta_id = iwl_find_station(priv, addr); |
b481de9c ZY |
2717 | |
2718 | if (sta_id != IWL_INVALID_STATION) { | |
2719 | u8 sta_awake = priv->stations[sta_id]. | |
2720 | ps_status == STA_PS_STATUS_WAKE; | |
2721 | ||
2722 | if (sta_awake && ps_bit) | |
2723 | priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP; | |
2724 | else if (!sta_awake && !ps_bit) { | |
2725 | iwl4965_sta_modify_ps_wake(priv, sta_id); | |
2726 | priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE; | |
2727 | } | |
2728 | } | |
2729 | } | |
0a6857e7 | 2730 | #ifdef CONFIG_IWLWIFI_DEBUG |
17744ff6 TW |
2731 | |
2732 | /** | |
2733 | * iwl4965_dbg_report_frame - dump frame to syslog during debug sessions | |
2734 | * | |
2735 | * You may hack this function to show different aspects of received frames, | |
2736 | * including selective frame dumps. | |
2737 | * group100 parameter selects whether to show 1 out of 100 good frames. | |
2738 | * | |
2739 | * TODO: This was originally written for 3945, need to audit for | |
2740 | * proper operation with 4965. | |
2741 | */ | |
c79dd5b5 | 2742 | static void iwl4965_dbg_report_frame(struct iwl_priv *priv, |
db11d634 | 2743 | struct iwl_rx_packet *pkt, |
17744ff6 TW |
2744 | struct ieee80211_hdr *header, int group100) |
2745 | { | |
2746 | u32 to_us; | |
2747 | u32 print_summary = 0; | |
2748 | u32 print_dump = 0; /* set to 1 to dump all frames' contents */ | |
2749 | u32 hundred = 0; | |
2750 | u32 dataframe = 0; | |
2751 | u16 fc; | |
2752 | u16 seq_ctl; | |
2753 | u16 channel; | |
2754 | u16 phy_flags; | |
2755 | int rate_sym; | |
2756 | u16 length; | |
2757 | u16 status; | |
2758 | u16 bcn_tmr; | |
2759 | u32 tsf_low; | |
2760 | u64 tsf; | |
2761 | u8 rssi; | |
2762 | u8 agc; | |
2763 | u16 sig_avg; | |
2764 | u16 noise_diff; | |
2765 | struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); | |
2766 | struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); | |
2767 | struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt); | |
2768 | u8 *data = IWL_RX_DATA(pkt); | |
2769 | ||
bf403db8 | 2770 | if (likely(!(priv->debug_level & IWL_DL_RX))) |
17744ff6 TW |
2771 | return; |
2772 | ||
2773 | /* MAC header */ | |
2774 | fc = le16_to_cpu(header->frame_control); | |
2775 | seq_ctl = le16_to_cpu(header->seq_ctrl); | |
2776 | ||
2777 | /* metadata */ | |
2778 | channel = le16_to_cpu(rx_hdr->channel); | |
2779 | phy_flags = le16_to_cpu(rx_hdr->phy_flags); | |
2780 | rate_sym = rx_hdr->rate; | |
2781 | length = le16_to_cpu(rx_hdr->len); | |
2782 | ||
2783 | /* end-of-frame status and timestamp */ | |
2784 | status = le32_to_cpu(rx_end->status); | |
2785 | bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp); | |
2786 | tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff; | |
2787 | tsf = le64_to_cpu(rx_end->timestamp); | |
2788 | ||
2789 | /* signal statistics */ | |
2790 | rssi = rx_stats->rssi; | |
2791 | agc = rx_stats->agc; | |
2792 | sig_avg = le16_to_cpu(rx_stats->sig_avg); | |
2793 | noise_diff = le16_to_cpu(rx_stats->noise_diff); | |
2794 | ||
2795 | to_us = !compare_ether_addr(header->addr1, priv->mac_addr); | |
2796 | ||
2797 | /* if data frame is to us and all is good, | |
2798 | * (optionally) print summary for only 1 out of every 100 */ | |
2799 | if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) == | |
2800 | (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) { | |
2801 | dataframe = 1; | |
2802 | if (!group100) | |
2803 | print_summary = 1; /* print each frame */ | |
2804 | else if (priv->framecnt_to_us < 100) { | |
2805 | priv->framecnt_to_us++; | |
2806 | print_summary = 0; | |
2807 | } else { | |
2808 | priv->framecnt_to_us = 0; | |
2809 | print_summary = 1; | |
2810 | hundred = 1; | |
2811 | } | |
2812 | } else { | |
2813 | /* print summary for all other frames */ | |
2814 | print_summary = 1; | |
2815 | } | |
2816 | ||
2817 | if (print_summary) { | |
2818 | char *title; | |
2819 | int rate_idx; | |
2820 | u32 bitrate; | |
2821 | ||
2822 | if (hundred) | |
2823 | title = "100Frames"; | |
2824 | else if (fc & IEEE80211_FCTL_RETRY) | |
2825 | title = "Retry"; | |
2826 | else if (ieee80211_is_assoc_response(fc)) | |
2827 | title = "AscRsp"; | |
2828 | else if (ieee80211_is_reassoc_response(fc)) | |
2829 | title = "RasRsp"; | |
2830 | else if (ieee80211_is_probe_response(fc)) { | |
2831 | title = "PrbRsp"; | |
2832 | print_dump = 1; /* dump frame contents */ | |
2833 | } else if (ieee80211_is_beacon(fc)) { | |
2834 | title = "Beacon"; | |
2835 | print_dump = 1; /* dump frame contents */ | |
2836 | } else if (ieee80211_is_atim(fc)) | |
2837 | title = "ATIM"; | |
2838 | else if (ieee80211_is_auth(fc)) | |
2839 | title = "Auth"; | |
2840 | else if (ieee80211_is_deauth(fc)) | |
2841 | title = "DeAuth"; | |
2842 | else if (ieee80211_is_disassoc(fc)) | |
2843 | title = "DisAssoc"; | |
2844 | else | |
2845 | title = "Frame"; | |
2846 | ||
2847 | rate_idx = iwl4965_hwrate_to_plcp_idx(rate_sym); | |
2848 | if (unlikely(rate_idx == -1)) | |
2849 | bitrate = 0; | |
2850 | else | |
2851 | bitrate = iwl4965_rates[rate_idx].ieee / 2; | |
2852 | ||
2853 | /* print frame summary. | |
2854 | * MAC addresses show just the last byte (for brevity), | |
2855 | * but you can hack it to show more, if you'd like to. */ | |
2856 | if (dataframe) | |
2857 | IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, " | |
2858 | "len=%u, rssi=%d, chnl=%d, rate=%u, \n", | |
2859 | title, fc, header->addr1[5], | |
2860 | length, rssi, channel, bitrate); | |
2861 | else { | |
2862 | /* src/dst addresses assume managed mode */ | |
2863 | IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, " | |
2864 | "src=0x%02x, rssi=%u, tim=%lu usec, " | |
2865 | "phy=0x%02x, chnl=%d\n", | |
2866 | title, fc, header->addr1[5], | |
2867 | header->addr3[5], rssi, | |
2868 | tsf_low - priv->scan_start_tsf, | |
2869 | phy_flags, channel); | |
2870 | } | |
2871 | } | |
2872 | if (print_dump) | |
bf403db8 | 2873 | iwl_print_hex_dump(priv, IWL_DL_RX, data, length); |
17744ff6 TW |
2874 | } |
2875 | #else | |
c79dd5b5 | 2876 | static inline void iwl4965_dbg_report_frame(struct iwl_priv *priv, |
db11d634 | 2877 | struct iwl_rx_packet *pkt, |
17744ff6 TW |
2878 | struct ieee80211_hdr *header, |
2879 | int group100) | |
2880 | { | |
2881 | } | |
2882 | #endif | |
2883 | ||
b481de9c | 2884 | |
7878a5a4 | 2885 | |
857485c0 | 2886 | /* Called for REPLY_RX (legacy ABG frames), or |
b481de9c | 2887 | * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */ |
c79dd5b5 | 2888 | static void iwl4965_rx_reply_rx(struct iwl_priv *priv, |
a55360e4 | 2889 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 2890 | { |
17744ff6 TW |
2891 | struct ieee80211_hdr *header; |
2892 | struct ieee80211_rx_status rx_status; | |
db11d634 | 2893 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
2894 | /* Use phy data (Rx signal strength, etc.) contained within |
2895 | * this rx packet for legacy frames, | |
2896 | * or phy data cached from REPLY_RX_PHY_CMD for HT frames. */ | |
857485c0 | 2897 | int include_phy = (pkt->hdr.cmd == REPLY_RX); |
b481de9c ZY |
2898 | struct iwl4965_rx_phy_res *rx_start = (include_phy) ? |
2899 | (struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) : | |
2900 | (struct iwl4965_rx_phy_res *)&priv->last_phy_res[1]; | |
2901 | __le32 *rx_end; | |
2902 | unsigned int len = 0; | |
b481de9c | 2903 | u16 fc; |
b481de9c ZY |
2904 | u8 network_packet; |
2905 | ||
17744ff6 | 2906 | rx_status.mactime = le64_to_cpu(rx_start->timestamp); |
dc92e497 TW |
2907 | rx_status.freq = |
2908 | ieee80211_frequency_to_channel(le16_to_cpu(rx_start->channel)); | |
17744ff6 TW |
2909 | rx_status.band = (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? |
2910 | IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; | |
dc92e497 TW |
2911 | rx_status.rate_idx = |
2912 | iwl4965_hwrate_to_plcp_idx(le32_to_cpu(rx_start->rate_n_flags)); | |
17744ff6 TW |
2913 | if (rx_status.band == IEEE80211_BAND_5GHZ) |
2914 | rx_status.rate_idx -= IWL_FIRST_OFDM_RATE; | |
2915 | ||
2916 | rx_status.antenna = 0; | |
2917 | rx_status.flag = 0; | |
2918 | ||
b481de9c | 2919 | if ((unlikely(rx_start->cfg_phy_cnt > 20))) { |
dc92e497 TW |
2920 | IWL_DEBUG_DROP("dsp size out of range [0,20]: %d/n", |
2921 | rx_start->cfg_phy_cnt); | |
b481de9c ZY |
2922 | return; |
2923 | } | |
17744ff6 | 2924 | |
b481de9c ZY |
2925 | if (!include_phy) { |
2926 | if (priv->last_phy_res[0]) | |
2927 | rx_start = (struct iwl4965_rx_phy_res *) | |
2928 | &priv->last_phy_res[1]; | |
2929 | else | |
2930 | rx_start = NULL; | |
2931 | } | |
2932 | ||
2933 | if (!rx_start) { | |
2934 | IWL_ERROR("MPDU frame without a PHY data\n"); | |
2935 | return; | |
2936 | } | |
2937 | ||
2938 | if (include_phy) { | |
2939 | header = (struct ieee80211_hdr *)((u8 *) & rx_start[1] | |
2940 | + rx_start->cfg_phy_cnt); | |
2941 | ||
2942 | len = le16_to_cpu(rx_start->byte_count); | |
17744ff6 | 2943 | rx_end = (__le32 *)(pkt->u.raw + rx_start->cfg_phy_cnt + |
b481de9c ZY |
2944 | sizeof(struct iwl4965_rx_phy_res) + len); |
2945 | } else { | |
2946 | struct iwl4965_rx_mpdu_res_start *amsdu = | |
2947 | (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw; | |
2948 | ||
2949 | header = (void *)(pkt->u.raw + | |
2950 | sizeof(struct iwl4965_rx_mpdu_res_start)); | |
2951 | len = le16_to_cpu(amsdu->byte_count); | |
2952 | rx_end = (__le32 *) (pkt->u.raw + | |
2953 | sizeof(struct iwl4965_rx_mpdu_res_start) + len); | |
2954 | } | |
2955 | ||
2956 | if (!(*rx_end & RX_RES_STATUS_NO_CRC32_ERROR) || | |
2957 | !(*rx_end & RX_RES_STATUS_NO_RXE_OVERFLOW)) { | |
2958 | IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n", | |
2959 | le32_to_cpu(*rx_end)); | |
2960 | return; | |
2961 | } | |
2962 | ||
2963 | priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp); | |
2964 | ||
b481de9c | 2965 | /* Find max signal strength (dBm) among 3 antenna/receiver chains */ |
566bfe5a | 2966 | rx_status.signal = iwl4965_calc_rssi(priv, rx_start); |
b481de9c ZY |
2967 | |
2968 | /* Meaningful noise values are available only from beacon statistics, | |
2969 | * which are gathered only when associated, and indicate noise | |
2970 | * only for the associated network channel ... | |
2971 | * Ignore these noise values while scanning (other channels) */ | |
3109ece1 | 2972 | if (iwl_is_associated(priv) && |
b481de9c | 2973 | !test_bit(STATUS_SCANNING, &priv->status)) { |
17744ff6 | 2974 | rx_status.noise = priv->last_rx_noise; |
566bfe5a | 2975 | rx_status.qual = iwl4965_calc_sig_qual(rx_status.signal, |
17744ff6 | 2976 | rx_status.noise); |
b481de9c | 2977 | } else { |
17744ff6 | 2978 | rx_status.noise = IWL_NOISE_MEAS_NOT_AVAILABLE; |
566bfe5a | 2979 | rx_status.qual = iwl4965_calc_sig_qual(rx_status.signal, 0); |
b481de9c ZY |
2980 | } |
2981 | ||
2982 | /* Reset beacon noise level if not associated. */ | |
3109ece1 | 2983 | if (!iwl_is_associated(priv)) |
b481de9c ZY |
2984 | priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE; |
2985 | ||
17744ff6 TW |
2986 | /* Set "1" to report good data frames in groups of 100 */ |
2987 | /* FIXME: need to optimze the call: */ | |
2988 | iwl4965_dbg_report_frame(priv, pkt, header, 1); | |
2989 | ||
2990 | IWL_DEBUG_STATS_LIMIT("Rssi %d, noise %d, qual %d, TSF %llu\n", | |
566bfe5a | 2991 | rx_status.signal, rx_status.noise, rx_status.signal, |
06501d29 | 2992 | (unsigned long long)rx_status.mactime); |
b481de9c | 2993 | |
4419e39b AK |
2994 | |
2995 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
2996 | iwl4965_handle_data_packet(priv, 1, include_phy, | |
2997 | rxb, &rx_status); | |
2998 | return; | |
2999 | } | |
3000 | ||
bb8c093b | 3001 | network_packet = iwl4965_is_network_packet(priv, header); |
b481de9c | 3002 | if (network_packet) { |
566bfe5a | 3003 | priv->last_rx_rssi = rx_status.signal; |
b481de9c ZY |
3004 | priv->last_beacon_time = priv->ucode_beacon_time; |
3005 | priv->last_tsf = le64_to_cpu(rx_start->timestamp); | |
3006 | } | |
3007 | ||
3008 | fc = le16_to_cpu(header->frame_control); | |
3009 | switch (fc & IEEE80211_FCTL_FTYPE) { | |
3010 | case IEEE80211_FTYPE_MGMT: | |
b481de9c ZY |
3011 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) |
3012 | iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM, | |
3013 | header->addr2); | |
17744ff6 | 3014 | iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &rx_status); |
b481de9c ZY |
3015 | break; |
3016 | ||
3017 | case IEEE80211_FTYPE_CTL: | |
9ab46173 | 3018 | #ifdef CONFIG_IWL4965_HT |
b481de9c ZY |
3019 | switch (fc & IEEE80211_FCTL_STYPE) { |
3020 | case IEEE80211_STYPE_BACK_REQ: | |
3021 | IWL_DEBUG_HT("IEEE80211_STYPE_BACK_REQ arrived\n"); | |
3022 | iwl4965_handle_data_packet(priv, 0, include_phy, | |
17744ff6 | 3023 | rxb, &rx_status); |
b481de9c ZY |
3024 | break; |
3025 | default: | |
3026 | break; | |
3027 | } | |
3028 | #endif | |
b481de9c ZY |
3029 | break; |
3030 | ||
0795af57 JP |
3031 | case IEEE80211_FTYPE_DATA: { |
3032 | DECLARE_MAC_BUF(mac1); | |
3033 | DECLARE_MAC_BUF(mac2); | |
3034 | DECLARE_MAC_BUF(mac3); | |
3035 | ||
b481de9c ZY |
3036 | if (priv->iw_mode == IEEE80211_IF_TYPE_AP) |
3037 | iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM, | |
3038 | header->addr2); | |
3039 | ||
3040 | if (unlikely(!network_packet)) | |
3041 | IWL_DEBUG_DROP("Dropping (non network): " | |
0795af57 JP |
3042 | "%s, %s, %s\n", |
3043 | print_mac(mac1, header->addr1), | |
3044 | print_mac(mac2, header->addr2), | |
3045 | print_mac(mac3, header->addr3)); | |
bb8c093b | 3046 | else if (unlikely(iwl4965_is_duplicate_packet(priv, header))) |
0795af57 JP |
3047 | IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n", |
3048 | print_mac(mac1, header->addr1), | |
3049 | print_mac(mac2, header->addr2), | |
3050 | print_mac(mac3, header->addr3)); | |
b481de9c ZY |
3051 | else |
3052 | iwl4965_handle_data_packet(priv, 1, include_phy, rxb, | |
17744ff6 | 3053 | &rx_status); |
b481de9c | 3054 | break; |
0795af57 | 3055 | } |
b481de9c ZY |
3056 | default: |
3057 | break; | |
3058 | ||
3059 | } | |
3060 | } | |
3061 | ||
3062 | /* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD). | |
3063 | * This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */ | |
c79dd5b5 | 3064 | static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv, |
a55360e4 | 3065 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 3066 | { |
db11d634 | 3067 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
3068 | priv->last_phy_res[0] = 1; |
3069 | memcpy(&priv->last_phy_res[1], &(pkt->u.raw[0]), | |
3070 | sizeof(struct iwl4965_rx_phy_res)); | |
3071 | } | |
c79dd5b5 | 3072 | static void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv, |
a55360e4 | 3073 | struct iwl_rx_mem_buffer *rxb) |
b481de9c ZY |
3074 | |
3075 | { | |
f0832f13 | 3076 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
db11d634 | 3077 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 3078 | struct iwl4965_missed_beacon_notif *missed_beacon; |
b481de9c ZY |
3079 | |
3080 | missed_beacon = &pkt->u.missed_beacon; | |
3081 | if (le32_to_cpu(missed_beacon->consequtive_missed_beacons) > 5) { | |
3082 | IWL_DEBUG_CALIB("missed bcn cnsq %d totl %d rcd %d expctd %d\n", | |
3083 | le32_to_cpu(missed_beacon->consequtive_missed_beacons), | |
3084 | le32_to_cpu(missed_beacon->total_missed_becons), | |
3085 | le32_to_cpu(missed_beacon->num_recvd_beacons), | |
3086 | le32_to_cpu(missed_beacon->num_expected_beacons)); | |
f0832f13 EG |
3087 | if (!test_bit(STATUS_SCANNING, &priv->status)) |
3088 | iwl_init_sensitivity(priv); | |
b481de9c | 3089 | } |
f0832f13 | 3090 | #endif /*CONFIG_IWL4965_RUN_TIME_CALIB*/ |
b481de9c | 3091 | } |
c8b0e6e1 | 3092 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 3093 | |
8b6eaea8 BC |
3094 | /** |
3095 | * iwl4965_sta_modify_enable_tid_tx - Enable Tx for this TID in station table | |
3096 | */ | |
c79dd5b5 | 3097 | static void iwl4965_sta_modify_enable_tid_tx(struct iwl_priv *priv, |
b481de9c ZY |
3098 | int sta_id, int tid) |
3099 | { | |
3100 | unsigned long flags; | |
3101 | ||
8b6eaea8 | 3102 | /* Remove "disable" flag, to enable Tx for this TID */ |
b481de9c ZY |
3103 | spin_lock_irqsave(&priv->sta_lock, flags); |
3104 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; | |
3105 | priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); | |
3106 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
3107 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
3108 | ||
133636de | 3109 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
b481de9c ZY |
3110 | } |
3111 | ||
8b6eaea8 BC |
3112 | /** |
3113 | * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack | |
3114 | * | |
3115 | * Go through block-ack's bitmap of ACK'd frames, update driver's record of | |
3116 | * ACK vs. not. This gets sent to mac80211, then to rate scaling algo. | |
3117 | */ | |
c79dd5b5 | 3118 | static int iwl4965_tx_status_reply_compressed_ba(struct iwl_priv *priv, |
6def9761 | 3119 | struct iwl_ht_agg *agg, |
bb8c093b | 3120 | struct iwl4965_compressed_ba_resp* |
b481de9c ZY |
3121 | ba_resp) |
3122 | ||
3123 | { | |
3124 | int i, sh, ack; | |
fe01b477 RR |
3125 | u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl); |
3126 | u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); | |
3127 | u64 bitmap; | |
3128 | int successes = 0; | |
3129 | struct ieee80211_tx_status *tx_status; | |
b481de9c ZY |
3130 | |
3131 | if (unlikely(!agg->wait_for_ba)) { | |
3132 | IWL_ERROR("Received BA when not expected\n"); | |
3133 | return -EINVAL; | |
3134 | } | |
8b6eaea8 BC |
3135 | |
3136 | /* Mark that the expected block-ack response arrived */ | |
b481de9c | 3137 | agg->wait_for_ba = 0; |
fe01b477 | 3138 | IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl); |
8b6eaea8 BC |
3139 | |
3140 | /* Calculate shift to align block-ack bits with our Tx window bits */ | |
fe01b477 | 3141 | sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl>>4); |
01ebd063 | 3142 | if (sh < 0) /* tbw something is wrong with indices */ |
b481de9c ZY |
3143 | sh += 0x100; |
3144 | ||
8b6eaea8 | 3145 | /* don't use 64-bit values for now */ |
fe01b477 | 3146 | bitmap = le64_to_cpu(ba_resp->bitmap) >> sh; |
b481de9c ZY |
3147 | |
3148 | if (agg->frame_count > (64 - sh)) { | |
3149 | IWL_DEBUG_TX_REPLY("more frames than bitmap size"); | |
3150 | return -1; | |
3151 | } | |
3152 | ||
3153 | /* check for success or failure according to the | |
8b6eaea8 | 3154 | * transmitted bitmap and block-ack bitmap */ |
fe01b477 | 3155 | bitmap &= agg->bitmap; |
b481de9c | 3156 | |
8b6eaea8 BC |
3157 | /* For each frame attempted in aggregation, |
3158 | * update driver's record of tx frame's status. */ | |
b481de9c | 3159 | for (i = 0; i < agg->frame_count ; i++) { |
fe01b477 RR |
3160 | ack = bitmap & (1 << i); |
3161 | successes += !!ack; | |
b481de9c | 3162 | IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n", |
fe01b477 RR |
3163 | ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff, |
3164 | agg->start_idx + i); | |
3165 | } | |
3166 | ||
3167 | tx_status = &priv->txq[scd_flow].txb[agg->start_idx].status; | |
3168 | tx_status->flags = IEEE80211_TX_STATUS_ACK; | |
99556438 RR |
3169 | tx_status->flags |= IEEE80211_TX_STATUS_AMPDU; |
3170 | tx_status->ampdu_ack_map = successes; | |
3171 | tx_status->ampdu_ack_len = agg->frame_count; | |
4c424e4c RR |
3172 | iwl4965_hwrate_to_tx_control(priv, agg->rate_n_flags, |
3173 | &tx_status->control); | |
fe01b477 | 3174 | |
f868f4e1 | 3175 | IWL_DEBUG_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap); |
fe01b477 RR |
3176 | |
3177 | return 0; | |
3178 | } | |
3179 | ||
3180 | /** | |
3181 | * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration | |
3182 | */ | |
c79dd5b5 | 3183 | static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv, |
fe01b477 RR |
3184 | u16 txq_id) |
3185 | { | |
3186 | /* Simply stop the queue, but don't change any configuration; | |
3187 | * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ | |
3395f6e9 | 3188 | iwl_write_prph(priv, |
12a81f60 | 3189 | IWL49_SCD_QUEUE_STATUS_BITS(txq_id), |
038669e4 EG |
3190 | (0 << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE)| |
3191 | (1 << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); | |
fe01b477 | 3192 | } |
b481de9c | 3193 | |
fe01b477 RR |
3194 | /** |
3195 | * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID | |
b095d03a | 3196 | * priv->lock must be held by the caller |
fe01b477 | 3197 | */ |
c79dd5b5 | 3198 | static int iwl4965_tx_queue_agg_disable(struct iwl_priv *priv, u16 txq_id, |
fe01b477 RR |
3199 | u16 ssn_idx, u8 tx_fifo) |
3200 | { | |
b095d03a RR |
3201 | int ret = 0; |
3202 | ||
fe01b477 RR |
3203 | if (IWL_BACK_QUEUE_FIRST_ID > txq_id) { |
3204 | IWL_WARNING("queue number too small: %d, must be > %d\n", | |
3205 | txq_id, IWL_BACK_QUEUE_FIRST_ID); | |
3206 | return -EINVAL; | |
b481de9c ZY |
3207 | } |
3208 | ||
3395f6e9 | 3209 | ret = iwl_grab_nic_access(priv); |
b095d03a RR |
3210 | if (ret) |
3211 | return ret; | |
3212 | ||
fe01b477 RR |
3213 | iwl4965_tx_queue_stop_scheduler(priv, txq_id); |
3214 | ||
12a81f60 | 3215 | iwl_clear_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id)); |
fe01b477 RR |
3216 | |
3217 | priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); | |
3218 | priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); | |
3219 | /* supposes that ssn_idx is valid (!= 0xFFF) */ | |
3220 | iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx); | |
3221 | ||
12a81f60 | 3222 | iwl_clear_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id)); |
fe01b477 RR |
3223 | iwl4965_txq_ctx_deactivate(priv, txq_id); |
3224 | iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); | |
3225 | ||
3395f6e9 | 3226 | iwl_release_nic_access(priv); |
b095d03a | 3227 | |
fe01b477 RR |
3228 | return 0; |
3229 | } | |
b481de9c | 3230 | |
c79dd5b5 | 3231 | int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id, |
fe01b477 RR |
3232 | u8 tid, int txq_id) |
3233 | { | |
3234 | struct iwl4965_queue *q = &priv->txq[txq_id].q; | |
3235 | u8 *addr = priv->stations[sta_id].sta.sta.addr; | |
6def9761 | 3236 | struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid]; |
fe01b477 RR |
3237 | |
3238 | switch (priv->stations[sta_id].tid[tid].agg.state) { | |
3239 | case IWL_EMPTYING_HW_QUEUE_DELBA: | |
3240 | /* We are reclaiming the last packet of the */ | |
3241 | /* aggregated HW queue */ | |
3242 | if (txq_id == tid_data->agg.txq_id && | |
3243 | q->read_ptr == q->write_ptr) { | |
3244 | u16 ssn = SEQ_TO_SN(tid_data->seq_number); | |
3245 | int tx_fifo = default_tid_to_tx_fifo[tid]; | |
3246 | IWL_DEBUG_HT("HW queue empty: continue DELBA flow\n"); | |
3247 | iwl4965_tx_queue_agg_disable(priv, txq_id, | |
3248 | ssn, tx_fifo); | |
3249 | tid_data->agg.state = IWL_AGG_OFF; | |
3250 | ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, addr, tid); | |
3251 | } | |
3252 | break; | |
3253 | case IWL_EMPTYING_HW_QUEUE_ADDBA: | |
3254 | /* We are reclaiming the last packet of the queue */ | |
3255 | if (tid_data->tfds_in_queue == 0) { | |
3256 | IWL_DEBUG_HT("HW queue empty: continue ADDBA flow\n"); | |
3257 | tid_data->agg.state = IWL_AGG_ON; | |
3258 | ieee80211_start_tx_ba_cb_irqsafe(priv->hw, addr, tid); | |
3259 | } | |
3260 | break; | |
3261 | } | |
b481de9c ZY |
3262 | return 0; |
3263 | } | |
3264 | ||
8b6eaea8 BC |
3265 | /** |
3266 | * iwl4965_queue_dec_wrap - Decrement queue index, wrap back to end if needed | |
3267 | * @index -- current index | |
3268 | * @n_bd -- total number of entries in queue (s/b power of 2) | |
3269 | */ | |
bb8c093b | 3270 | static inline int iwl4965_queue_dec_wrap(int index, int n_bd) |
b481de9c ZY |
3271 | { |
3272 | return (index == 0) ? n_bd - 1 : index - 1; | |
3273 | } | |
3274 | ||
8b6eaea8 BC |
3275 | /** |
3276 | * iwl4965_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA | |
3277 | * | |
3278 | * Handles block-acknowledge notification from device, which reports success | |
3279 | * of frames sent via aggregation. | |
3280 | */ | |
c79dd5b5 | 3281 | static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv, |
a55360e4 | 3282 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 3283 | { |
db11d634 | 3284 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
bb8c093b | 3285 | struct iwl4965_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba; |
b481de9c | 3286 | int index; |
16466903 | 3287 | struct iwl_tx_queue *txq = NULL; |
6def9761 | 3288 | struct iwl_ht_agg *agg; |
fe01b477 | 3289 | DECLARE_MAC_BUF(mac); |
8b6eaea8 BC |
3290 | |
3291 | /* "flow" corresponds to Tx queue */ | |
fe01b477 | 3292 | u16 scd_flow = le16_to_cpu(ba_resp->scd_flow); |
8b6eaea8 BC |
3293 | |
3294 | /* "ssn" is start of block-ack Tx window, corresponds to index | |
3295 | * (in Tx queue's circular buffer) of first TFD/frame in window */ | |
b481de9c ZY |
3296 | u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn); |
3297 | ||
dfe7d458 | 3298 | if (scd_flow >= priv->hw_params.max_txq_num) { |
b481de9c ZY |
3299 | IWL_ERROR("BUG_ON scd_flow is bigger than number of queues"); |
3300 | return; | |
3301 | } | |
3302 | ||
fe01b477 | 3303 | txq = &priv->txq[scd_flow]; |
b481de9c | 3304 | agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg; |
8b6eaea8 BC |
3305 | |
3306 | /* Find index just before block-ack window */ | |
bb8c093b | 3307 | index = iwl4965_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd); |
b481de9c | 3308 | |
01ebd063 | 3309 | /* TODO: Need to get this copy more safely - now good for debug */ |
fe01b477 | 3310 | |
0795af57 JP |
3311 | IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d]Received from %s, " |
3312 | "sta_id = %d\n", | |
b481de9c | 3313 | agg->wait_for_ba, |
0795af57 | 3314 | print_mac(mac, (u8*) &ba_resp->sta_addr_lo32), |
b481de9c | 3315 | ba_resp->sta_id); |
fe01b477 | 3316 | IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = " |
b481de9c ZY |
3317 | "%d, scd_ssn = %d\n", |
3318 | ba_resp->tid, | |
fe01b477 | 3319 | ba_resp->seq_ctl, |
0310ae72 | 3320 | (unsigned long long)le64_to_cpu(ba_resp->bitmap), |
b481de9c ZY |
3321 | ba_resp->scd_flow, |
3322 | ba_resp->scd_ssn); | |
fe01b477 | 3323 | IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx \n", |
b481de9c | 3324 | agg->start_idx, |
f868f4e1 | 3325 | (unsigned long long)agg->bitmap); |
8b6eaea8 BC |
3326 | |
3327 | /* Update driver's record of ACK vs. not for each frame in window */ | |
b481de9c | 3328 | iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp); |
8b6eaea8 BC |
3329 | |
3330 | /* Release all TFDs before the SSN, i.e. all TFDs in front of | |
3331 | * block-ack window (we assume that they've been successfully | |
3332 | * transmitted ... if not, it's too late anyway). */ | |
fe01b477 | 3333 | if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) { |
0d0b2c1c RR |
3334 | /* calculate mac80211 ampdu sw queue to wake */ |
3335 | int ampdu_q = | |
3336 | scd_flow - IWL_BACK_QUEUE_FIRST_ID + priv->hw->queues; | |
fe01b477 RR |
3337 | int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index); |
3338 | priv->stations[ba_resp->sta_id]. | |
3339 | tid[ba_resp->tid].tfds_in_queue -= freed; | |
3340 | if (iwl4965_queue_space(&txq->q) > txq->q.low_mark && | |
3341 | priv->mac80211_registered && | |
3342 | agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
0d0b2c1c | 3343 | ieee80211_wake_queue(priv->hw, ampdu_q); |
fe01b477 RR |
3344 | iwl4965_check_empty_hw_queue(priv, ba_resp->sta_id, |
3345 | ba_resp->tid, scd_flow); | |
3346 | } | |
b481de9c ZY |
3347 | } |
3348 | ||
8b6eaea8 BC |
3349 | /** |
3350 | * iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue | |
3351 | */ | |
c79dd5b5 | 3352 | static int iwl4965_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, |
b481de9c ZY |
3353 | u16 txq_id) |
3354 | { | |
3355 | u32 tbl_dw_addr; | |
3356 | u32 tbl_dw; | |
3357 | u16 scd_q2ratid; | |
3358 | ||
038669e4 | 3359 | scd_q2ratid = ra_tid & IWL49_SCD_QUEUE_RA_TID_MAP_RATID_MSK; |
b481de9c ZY |
3360 | |
3361 | tbl_dw_addr = priv->scd_base_addr + | |
038669e4 | 3362 | IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); |
b481de9c | 3363 | |
3395f6e9 | 3364 | tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr); |
b481de9c ZY |
3365 | |
3366 | if (txq_id & 0x1) | |
3367 | tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); | |
3368 | else | |
3369 | tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); | |
3370 | ||
3395f6e9 | 3371 | iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw); |
b481de9c ZY |
3372 | |
3373 | return 0; | |
3374 | } | |
3375 | ||
fe01b477 | 3376 | |
b481de9c | 3377 | /** |
8b6eaea8 BC |
3378 | * iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue |
3379 | * | |
3380 | * NOTE: txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID, | |
3381 | * i.e. it must be one of the higher queues used for aggregation | |
b481de9c | 3382 | */ |
c79dd5b5 | 3383 | static int iwl4965_tx_queue_agg_enable(struct iwl_priv *priv, int txq_id, |
b481de9c ZY |
3384 | int tx_fifo, int sta_id, int tid, |
3385 | u16 ssn_idx) | |
3386 | { | |
3387 | unsigned long flags; | |
3388 | int rc; | |
3389 | u16 ra_tid; | |
3390 | ||
3391 | if (IWL_BACK_QUEUE_FIRST_ID > txq_id) | |
3392 | IWL_WARNING("queue number too small: %d, must be > %d\n", | |
3393 | txq_id, IWL_BACK_QUEUE_FIRST_ID); | |
3394 | ||
3395 | ra_tid = BUILD_RAxTID(sta_id, tid); | |
3396 | ||
8b6eaea8 | 3397 | /* Modify device's station table to Tx this TID */ |
bb8c093b | 3398 | iwl4965_sta_modify_enable_tid_tx(priv, sta_id, tid); |
b481de9c ZY |
3399 | |
3400 | spin_lock_irqsave(&priv->lock, flags); | |
3395f6e9 | 3401 | rc = iwl_grab_nic_access(priv); |
b481de9c ZY |
3402 | if (rc) { |
3403 | spin_unlock_irqrestore(&priv->lock, flags); | |
3404 | return rc; | |
3405 | } | |
3406 | ||
8b6eaea8 | 3407 | /* Stop this Tx queue before configuring it */ |
b481de9c ZY |
3408 | iwl4965_tx_queue_stop_scheduler(priv, txq_id); |
3409 | ||
8b6eaea8 | 3410 | /* Map receiver-address / traffic-ID to this queue */ |
b481de9c ZY |
3411 | iwl4965_tx_queue_set_q2ratid(priv, ra_tid, txq_id); |
3412 | ||
8b6eaea8 | 3413 | /* Set this queue as a chain-building queue */ |
12a81f60 | 3414 | iwl_set_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id)); |
b481de9c | 3415 | |
8b6eaea8 BC |
3416 | /* Place first TFD at index corresponding to start sequence number. |
3417 | * Assumes that ssn_idx is valid (!= 0xFFF) */ | |
fc4b6853 TW |
3418 | priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); |
3419 | priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); | |
b481de9c ZY |
3420 | iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx); |
3421 | ||
8b6eaea8 | 3422 | /* Set up Tx window size and frame limit for this queue */ |
3395f6e9 | 3423 | iwl_write_targ_mem(priv, |
038669e4 EG |
3424 | priv->scd_base_addr + IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id), |
3425 | (SCD_WIN_SIZE << IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) & | |
3426 | IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK); | |
b481de9c | 3427 | |
3395f6e9 | 3428 | iwl_write_targ_mem(priv, priv->scd_base_addr + |
038669e4 EG |
3429 | IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32), |
3430 | (SCD_FRAME_LIMIT << IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) | |
3431 | & IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK); | |
b481de9c | 3432 | |
12a81f60 | 3433 | iwl_set_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id)); |
b481de9c | 3434 | |
8b6eaea8 | 3435 | /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ |
b481de9c ZY |
3436 | iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1); |
3437 | ||
3395f6e9 | 3438 | iwl_release_nic_access(priv); |
b481de9c ZY |
3439 | spin_unlock_irqrestore(&priv->lock, flags); |
3440 | ||
3441 | return 0; | |
3442 | } | |
3443 | ||
c8b0e6e1 | 3444 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c ZY |
3445 | |
3446 | /** | |
3447 | * iwl4965_add_station - Initialize a station's hardware rate table | |
3448 | * | |
8b6eaea8 | 3449 | * The uCode's station table contains a table of fallback rates |
b481de9c ZY |
3450 | * for automatic fallback during transmission. |
3451 | * | |
8b6eaea8 BC |
3452 | * NOTE: This sets up a default set of values. These will be replaced later |
3453 | * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of | |
3454 | * rc80211_simple. | |
b481de9c | 3455 | * |
8b6eaea8 BC |
3456 | * NOTE: Run REPLY_ADD_STA command to set up station table entry, before |
3457 | * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, | |
3458 | * which requires station table entry to exist). | |
b481de9c | 3459 | */ |
c79dd5b5 | 3460 | void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
3461 | { |
3462 | int i, r; | |
66c73db7 | 3463 | struct iwl_link_quality_cmd link_cmd = { |
b481de9c ZY |
3464 | .reserved1 = 0, |
3465 | }; | |
3466 | u16 rate_flags; | |
3467 | ||
8b6eaea8 BC |
3468 | /* Set up the rate scaling to start at selected rate, fall back |
3469 | * all the way down to 1M in IEEE order, and then spin on 1M */ | |
b481de9c ZY |
3470 | if (is_ap) |
3471 | r = IWL_RATE_54M_INDEX; | |
8318d78a | 3472 | else if (priv->band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
3473 | r = IWL_RATE_6M_INDEX; |
3474 | else | |
3475 | r = IWL_RATE_1M_INDEX; | |
3476 | ||
3477 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { | |
3478 | rate_flags = 0; | |
3479 | if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) | |
3480 | rate_flags |= RATE_MCS_CCK_MSK; | |
3481 | ||
8b6eaea8 | 3482 | /* Use Tx antenna B only */ |
fde0db31 | 3483 | rate_flags |= RATE_MCS_ANT_B_MSK; /*FIXME:RS*/ |
8b6eaea8 | 3484 | |
b481de9c | 3485 | link_cmd.rs_table[i].rate_n_flags = |
bb8c093b CH |
3486 | iwl4965_hw_set_rate_n_flags(iwl4965_rates[r].plcp, rate_flags); |
3487 | r = iwl4965_get_prev_ieee_rate(r); | |
b481de9c ZY |
3488 | } |
3489 | ||
3490 | link_cmd.general_params.single_stream_ant_msk = 2; | |
3491 | link_cmd.general_params.dual_stream_ant_msk = 3; | |
3492 | link_cmd.agg_params.agg_dis_start_th = 3; | |
3493 | link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000); | |
3494 | ||
3495 | /* Update the rate scaling for control frame Tx to AP */ | |
5425e490 | 3496 | link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id; |
b481de9c | 3497 | |
e5472978 TW |
3498 | iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD, |
3499 | sizeof(link_cmd), &link_cmd, NULL); | |
b481de9c ZY |
3500 | } |
3501 | ||
c8b0e6e1 | 3502 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 3503 | |
c79dd5b5 | 3504 | void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index, |
67d62035 | 3505 | struct ieee80211_ht_info *sta_ht_inf) |
b481de9c ZY |
3506 | { |
3507 | __le32 sta_flags; | |
e53cfe0e | 3508 | u8 mimo_ps_mode; |
b481de9c | 3509 | |
67d62035 | 3510 | if (!sta_ht_inf || !sta_ht_inf->ht_supported) |
b481de9c ZY |
3511 | goto done; |
3512 | ||
e53cfe0e TW |
3513 | mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2; |
3514 | ||
b481de9c ZY |
3515 | sta_flags = priv->stations[index].sta.station_flags; |
3516 | ||
e53cfe0e TW |
3517 | sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); |
3518 | ||
3519 | switch (mimo_ps_mode) { | |
3520 | case WLAN_HT_CAP_MIMO_PS_STATIC: | |
3521 | sta_flags |= STA_FLG_MIMO_DIS_MSK; | |
3522 | break; | |
3523 | case WLAN_HT_CAP_MIMO_PS_DYNAMIC: | |
b481de9c | 3524 | sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
e53cfe0e TW |
3525 | break; |
3526 | case WLAN_HT_CAP_MIMO_PS_DISABLED: | |
3527 | break; | |
3528 | default: | |
3529 | IWL_WARNING("Invalid MIMO PS mode %d", mimo_ps_mode); | |
3530 | break; | |
3531 | } | |
b481de9c ZY |
3532 | |
3533 | sta_flags |= cpu_to_le32( | |
67d62035 | 3534 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); |
b481de9c ZY |
3535 | |
3536 | sta_flags |= cpu_to_le32( | |
67d62035 | 3537 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); |
b481de9c | 3538 | |
47c5196e | 3539 | if (iwl_is_fat_tx_allowed(priv, sta_ht_inf)) |
b481de9c | 3540 | sta_flags |= STA_FLG_FAT_EN_MSK; |
67d62035 | 3541 | else |
e53cfe0e | 3542 | sta_flags &= ~STA_FLG_FAT_EN_MSK; |
67d62035 | 3543 | |
b481de9c ZY |
3544 | priv->stations[index].sta.station_flags = sta_flags; |
3545 | done: | |
3546 | return; | |
3547 | } | |
3548 | ||
fe07aa7a RR |
3549 | static int iwl4965_rx_agg_start(struct iwl_priv *priv, |
3550 | const u8 *addr, int tid, u16 ssn) | |
b481de9c ZY |
3551 | { |
3552 | unsigned long flags; | |
fe07aa7a RR |
3553 | int sta_id; |
3554 | ||
3555 | sta_id = iwl_find_station(priv, addr); | |
3556 | if (sta_id == IWL_INVALID_STATION) | |
3557 | return -ENXIO; | |
b481de9c ZY |
3558 | |
3559 | spin_lock_irqsave(&priv->sta_lock, flags); | |
3560 | priv->stations[sta_id].sta.station_flags_msk = 0; | |
3561 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; | |
3562 | priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid; | |
3563 | priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); | |
3564 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
3565 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
3566 | ||
133636de | 3567 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, |
fe07aa7a | 3568 | CMD_ASYNC); |
b481de9c ZY |
3569 | } |
3570 | ||
fe07aa7a RR |
3571 | static int iwl4965_rx_agg_stop(struct iwl_priv *priv, |
3572 | const u8 *addr, int tid) | |
b481de9c ZY |
3573 | { |
3574 | unsigned long flags; | |
fe07aa7a RR |
3575 | int sta_id; |
3576 | ||
3577 | sta_id = iwl_find_station(priv, addr); | |
3578 | if (sta_id == IWL_INVALID_STATION) | |
3579 | return -ENXIO; | |
b481de9c ZY |
3580 | |
3581 | spin_lock_irqsave(&priv->sta_lock, flags); | |
3582 | priv->stations[sta_id].sta.station_flags_msk = 0; | |
3583 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; | |
3584 | priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid; | |
3585 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
3586 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
3587 | ||
133636de | 3588 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, |
fe07aa7a | 3589 | CMD_ASYNC); |
b481de9c ZY |
3590 | } |
3591 | ||
8b6eaea8 BC |
3592 | /* |
3593 | * Find first available (lowest unused) Tx Queue, mark it "active". | |
3594 | * Called only when finding queue for aggregation. | |
3595 | * Should never return anything < 7, because they should already | |
3596 | * be in use as EDCA AC (0-3), Command (4), HCCA (5, 6). | |
3597 | */ | |
c79dd5b5 | 3598 | static int iwl4965_txq_ctx_activate_free(struct iwl_priv *priv) |
b481de9c ZY |
3599 | { |
3600 | int txq_id; | |
3601 | ||
5425e490 | 3602 | for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) |
b481de9c ZY |
3603 | if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk)) |
3604 | return txq_id; | |
3605 | return -1; | |
3606 | } | |
3607 | ||
fe07aa7a RR |
3608 | static int iwl4965_tx_agg_start(struct ieee80211_hw *hw, const u8 *ra, |
3609 | u16 tid, u16 *start_seq_num) | |
b481de9c | 3610 | { |
c79dd5b5 | 3611 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3612 | int sta_id; |
3613 | int tx_fifo; | |
3614 | int txq_id; | |
3615 | int ssn = -1; | |
b095d03a | 3616 | int ret = 0; |
b481de9c | 3617 | unsigned long flags; |
6def9761 | 3618 | struct iwl_tid_data *tid_data; |
0795af57 | 3619 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
3620 | |
3621 | if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo))) | |
3622 | tx_fifo = default_tid_to_tx_fifo[tid]; | |
3623 | else | |
3624 | return -EINVAL; | |
3625 | ||
fe07aa7a RR |
3626 | IWL_WARNING("%s on ra = %s tid = %d\n", |
3627 | __func__, print_mac(mac, ra), tid); | |
b481de9c | 3628 | |
fe07aa7a | 3629 | sta_id = iwl_find_station(priv, ra); |
b481de9c ZY |
3630 | if (sta_id == IWL_INVALID_STATION) |
3631 | return -ENXIO; | |
3632 | ||
fe01b477 RR |
3633 | if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) { |
3634 | IWL_ERROR("Start AGG when state is not IWL_AGG_OFF !\n"); | |
3635 | return -ENXIO; | |
3636 | } | |
3637 | ||
bb8c093b | 3638 | txq_id = iwl4965_txq_ctx_activate_free(priv); |
b481de9c ZY |
3639 | if (txq_id == -1) |
3640 | return -ENXIO; | |
3641 | ||
3642 | spin_lock_irqsave(&priv->sta_lock, flags); | |
3643 | tid_data = &priv->stations[sta_id].tid[tid]; | |
3644 | ssn = SEQ_TO_SN(tid_data->seq_number); | |
3645 | tid_data->agg.txq_id = txq_id; | |
3646 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
3647 | ||
3648 | *start_seq_num = ssn; | |
b095d03a RR |
3649 | ret = iwl4965_tx_queue_agg_enable(priv, txq_id, tx_fifo, |
3650 | sta_id, tid, ssn); | |
3651 | if (ret) | |
3652 | return ret; | |
b481de9c | 3653 | |
b095d03a | 3654 | ret = 0; |
fe01b477 RR |
3655 | if (tid_data->tfds_in_queue == 0) { |
3656 | printk(KERN_ERR "HW queue is empty\n"); | |
3657 | tid_data->agg.state = IWL_AGG_ON; | |
fe07aa7a | 3658 | ieee80211_start_tx_ba_cb_irqsafe(hw, ra, tid); |
fe01b477 RR |
3659 | } else { |
3660 | IWL_DEBUG_HT("HW queue is NOT empty: %d packets in HW queue\n", | |
3661 | tid_data->tfds_in_queue); | |
3662 | tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA; | |
3663 | } | |
b095d03a | 3664 | return ret; |
fe01b477 | 3665 | } |
b481de9c | 3666 | |
fe07aa7a | 3667 | static int iwl4965_tx_agg_stop(struct ieee80211_hw *hw, const u8 *ra, u16 tid) |
b481de9c | 3668 | { |
c79dd5b5 | 3669 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3670 | int tx_fifo_id, txq_id, sta_id, ssn = -1; |
6def9761 | 3671 | struct iwl_tid_data *tid_data; |
b095d03a | 3672 | int ret, write_ptr, read_ptr; |
fe01b477 | 3673 | unsigned long flags; |
0795af57 JP |
3674 | DECLARE_MAC_BUF(mac); |
3675 | ||
fe07aa7a RR |
3676 | if (!ra) { |
3677 | IWL_ERROR("ra = NULL\n"); | |
b481de9c ZY |
3678 | return -EINVAL; |
3679 | } | |
3680 | ||
3681 | if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo))) | |
3682 | tx_fifo_id = default_tid_to_tx_fifo[tid]; | |
3683 | else | |
3684 | return -EINVAL; | |
3685 | ||
fe07aa7a | 3686 | sta_id = iwl_find_station(priv, ra); |
b481de9c ZY |
3687 | |
3688 | if (sta_id == IWL_INVALID_STATION) | |
3689 | return -ENXIO; | |
3690 | ||
fe01b477 RR |
3691 | if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_ON) |
3692 | IWL_WARNING("Stopping AGG while state not IWL_AGG_ON\n"); | |
3693 | ||
b481de9c ZY |
3694 | tid_data = &priv->stations[sta_id].tid[tid]; |
3695 | ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4; | |
3696 | txq_id = tid_data->agg.txq_id; | |
fe01b477 RR |
3697 | write_ptr = priv->txq[txq_id].q.write_ptr; |
3698 | read_ptr = priv->txq[txq_id].q.read_ptr; | |
3699 | ||
3700 | /* The queue is not empty */ | |
3701 | if (write_ptr != read_ptr) { | |
3702 | IWL_DEBUG_HT("Stopping a non empty AGG HW QUEUE\n"); | |
3703 | priv->stations[sta_id].tid[tid].agg.state = | |
3704 | IWL_EMPTYING_HW_QUEUE_DELBA; | |
3705 | return 0; | |
3706 | } | |
3707 | ||
fe07aa7a | 3708 | IWL_DEBUG_HT("HW queue is empty\n"); |
fe01b477 | 3709 | priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF; |
b481de9c | 3710 | |
fe01b477 | 3711 | spin_lock_irqsave(&priv->lock, flags); |
b095d03a | 3712 | ret = iwl4965_tx_queue_agg_disable(priv, txq_id, ssn, tx_fifo_id); |
fe01b477 RR |
3713 | spin_unlock_irqrestore(&priv->lock, flags); |
3714 | ||
b095d03a RR |
3715 | if (ret) |
3716 | return ret; | |
b481de9c | 3717 | |
fe07aa7a | 3718 | ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, ra, tid); |
8114fcf1 | 3719 | |
8114fcf1 RR |
3720 | return 0; |
3721 | } | |
3722 | ||
3723 | int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw, | |
3724 | enum ieee80211_ampdu_mlme_action action, | |
3725 | const u8 *addr, u16 tid, u16 *ssn) | |
3726 | { | |
c79dd5b5 | 3727 | struct iwl_priv *priv = hw->priv; |
8114fcf1 RR |
3728 | DECLARE_MAC_BUF(mac); |
3729 | ||
fe07aa7a RR |
3730 | IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n", |
3731 | print_mac(mac, addr), tid); | |
3732 | ||
8114fcf1 RR |
3733 | switch (action) { |
3734 | case IEEE80211_AMPDU_RX_START: | |
3735 | IWL_DEBUG_HT("start Rx\n"); | |
fe07aa7a | 3736 | return iwl4965_rx_agg_start(priv, addr, tid, *ssn); |
8114fcf1 RR |
3737 | case IEEE80211_AMPDU_RX_STOP: |
3738 | IWL_DEBUG_HT("stop Rx\n"); | |
fe07aa7a | 3739 | return iwl4965_rx_agg_stop(priv, addr, tid); |
8114fcf1 RR |
3740 | case IEEE80211_AMPDU_TX_START: |
3741 | IWL_DEBUG_HT("start Tx\n"); | |
fe07aa7a | 3742 | return iwl4965_tx_agg_start(hw, addr, tid, ssn); |
8114fcf1 RR |
3743 | case IEEE80211_AMPDU_TX_STOP: |
3744 | IWL_DEBUG_HT("stop Tx\n"); | |
fe07aa7a | 3745 | return iwl4965_tx_agg_stop(hw, addr, tid); |
8114fcf1 RR |
3746 | default: |
3747 | IWL_DEBUG_HT("unknown\n"); | |
3748 | return -EINVAL; | |
3749 | break; | |
3750 | } | |
3751 | return 0; | |
3752 | } | |
c8b0e6e1 | 3753 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c | 3754 | |
133636de TW |
3755 | |
3756 | static u16 iwl4965_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) | |
3757 | { | |
3758 | struct iwl4965_addsta_cmd *addsta = (struct iwl4965_addsta_cmd *)data; | |
3759 | addsta->mode = cmd->mode; | |
3760 | memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); | |
3761 | memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo)); | |
3762 | addsta->station_flags = cmd->station_flags; | |
3763 | addsta->station_flags_msk = cmd->station_flags_msk; | |
3764 | addsta->tid_disable_tx = cmd->tid_disable_tx; | |
3765 | addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; | |
3766 | addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; | |
3767 | addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; | |
3768 | addsta->reserved1 = __constant_cpu_to_le16(0); | |
3769 | addsta->reserved2 = __constant_cpu_to_le32(0); | |
3770 | ||
3771 | return (u16)sizeof(struct iwl4965_addsta_cmd); | |
3772 | } | |
b481de9c | 3773 | /* Set up 4965-specific Rx frame reply handlers */ |
d4789efe | 3774 | static void iwl4965_rx_handler_setup(struct iwl_priv *priv) |
b481de9c ZY |
3775 | { |
3776 | /* Legacy Rx frames */ | |
857485c0 | 3777 | priv->rx_handlers[REPLY_RX] = iwl4965_rx_reply_rx; |
b481de9c ZY |
3778 | |
3779 | /* High-throughput (HT) Rx frames */ | |
3780 | priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl4965_rx_reply_rx_phy; | |
3781 | priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl4965_rx_reply_rx; | |
3782 | ||
3783 | priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = | |
3784 | iwl4965_rx_missed_beacon_notif; | |
3785 | ||
c8b0e6e1 | 3786 | #ifdef CONFIG_IWL4965_HT |
b481de9c | 3787 | priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba; |
c8b0e6e1 | 3788 | #endif /* CONFIG_IWL4965_HT */ |
b481de9c ZY |
3789 | } |
3790 | ||
c79dd5b5 | 3791 | void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
3792 | { |
3793 | INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work); | |
f0832f13 | 3794 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
b481de9c ZY |
3795 | INIT_WORK(&priv->sensitivity_work, iwl4965_bg_sensitivity_work); |
3796 | #endif | |
b481de9c ZY |
3797 | init_timer(&priv->statistics_periodic); |
3798 | priv->statistics_periodic.data = (unsigned long)priv; | |
3799 | priv->statistics_periodic.function = iwl4965_bg_statistics_periodic; | |
3800 | } | |
3801 | ||
c79dd5b5 | 3802 | void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c ZY |
3803 | { |
3804 | del_timer_sync(&priv->statistics_periodic); | |
3805 | ||
3806 | cancel_delayed_work(&priv->init_alive_start); | |
3807 | } | |
3808 | ||
3c424c28 TW |
3809 | |
3810 | static struct iwl_hcmd_ops iwl4965_hcmd = { | |
7e8c519e | 3811 | .rxon_assoc = iwl4965_send_rxon_assoc, |
3c424c28 TW |
3812 | }; |
3813 | ||
857485c0 TW |
3814 | static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = { |
3815 | .enqueue_hcmd = iwl4965_enqueue_hcmd, | |
133636de | 3816 | .build_addsta_hcmd = iwl4965_build_addsta_hcmd, |
f0832f13 EG |
3817 | #ifdef CONFIG_IWL4965_RUN_TIME_CALIB |
3818 | .chain_noise_reset = iwl4965_chain_noise_reset, | |
3819 | .gain_computation = iwl4965_gain_computation, | |
3820 | #endif | |
857485c0 TW |
3821 | }; |
3822 | ||
6bc913bd | 3823 | static struct iwl_lib_ops iwl4965_lib = { |
5425e490 | 3824 | .set_hw_params = iwl4965_hw_set_hw_params, |
399f4900 RR |
3825 | .alloc_shared_mem = iwl4965_alloc_shared_mem, |
3826 | .free_shared_mem = iwl4965_free_shared_mem, | |
d67f5489 | 3827 | .shared_mem_rx_idx = iwl4965_shared_mem_rx_idx, |
e2a722eb | 3828 | .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl, |
5a676bbe | 3829 | .disable_tx_fifo = iwl4965_disable_tx_fifo, |
d4789efe | 3830 | .rx_handler_setup = iwl4965_rx_handler_setup, |
57aab75a TW |
3831 | .is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr, |
3832 | .alive_notify = iwl4965_alive_notify, | |
f3ccc08c | 3833 | .init_alive_start = iwl4965_init_alive_start, |
57aab75a | 3834 | .load_ucode = iwl4965_load_bsm, |
6f4083aa | 3835 | .apm_ops = { |
91238714 | 3836 | .init = iwl4965_apm_init, |
694cc56d | 3837 | .config = iwl4965_nic_config, |
6f4083aa TW |
3838 | .set_pwr_src = iwl4965_set_pwr_src, |
3839 | }, | |
6bc913bd | 3840 | .eeprom_ops = { |
073d3f5f TW |
3841 | .regulatory_bands = { |
3842 | EEPROM_REGULATORY_BAND_1_CHANNELS, | |
3843 | EEPROM_REGULATORY_BAND_2_CHANNELS, | |
3844 | EEPROM_REGULATORY_BAND_3_CHANNELS, | |
3845 | EEPROM_REGULATORY_BAND_4_CHANNELS, | |
3846 | EEPROM_REGULATORY_BAND_5_CHANNELS, | |
3847 | EEPROM_4965_REGULATORY_BAND_24_FAT_CHANNELS, | |
3848 | EEPROM_4965_REGULATORY_BAND_52_FAT_CHANNELS | |
3849 | }, | |
6bc913bd AK |
3850 | .verify_signature = iwlcore_eeprom_verify_signature, |
3851 | .acquire_semaphore = iwlcore_eeprom_acquire_semaphore, | |
3852 | .release_semaphore = iwlcore_eeprom_release_semaphore, | |
8614f360 | 3853 | .check_version = iwl4965_eeprom_check_version, |
073d3f5f | 3854 | .query_addr = iwlcore_eeprom_query_addr, |
6bc913bd | 3855 | }, |
ad97edd2 | 3856 | .radio_kill_sw = iwl4965_radio_kill_sw, |
5da4b55f MA |
3857 | .set_power = iwl4965_set_power, |
3858 | .update_chain_flags = iwl4965_update_chain_flags, | |
6bc913bd AK |
3859 | }; |
3860 | ||
3861 | static struct iwl_ops iwl4965_ops = { | |
3862 | .lib = &iwl4965_lib, | |
3c424c28 | 3863 | .hcmd = &iwl4965_hcmd, |
857485c0 | 3864 | .utils = &iwl4965_hcmd_utils, |
6bc913bd AK |
3865 | }; |
3866 | ||
fed9017e | 3867 | struct iwl_cfg iwl4965_agn_cfg = { |
82b9a121 | 3868 | .name = "4965AGN", |
4bf775cd | 3869 | .fw_name = "iwlwifi-4965" IWL4965_UCODE_API ".ucode", |
82b9a121 | 3870 | .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, |
073d3f5f | 3871 | .eeprom_size = IWL4965_EEPROM_IMG_SIZE, |
6bc913bd | 3872 | .ops = &iwl4965_ops, |
1ea87396 | 3873 | .mod_params = &iwl4965_mod_params, |
82b9a121 TW |
3874 | }; |
3875 | ||
1ea87396 AK |
3876 | module_param_named(antenna, iwl4965_mod_params.antenna, int, 0444); |
3877 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); | |
3878 | module_param_named(disable, iwl4965_mod_params.disable, int, 0444); | |
3879 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); | |
fcc76c6b EG |
3880 | module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, 0444); |
3881 | MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])\n"); | |
1ea87396 AK |
3882 | module_param_named(debug, iwl4965_mod_params.debug, int, 0444); |
3883 | MODULE_PARM_DESC(debug, "debug output mask"); | |
3884 | module_param_named( | |
3885 | disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, 0444); | |
3886 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); | |
3887 | ||
3888 | module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, 0444); | |
3889 | MODULE_PARM_DESC(queues_num, "number of hw queues."); | |
3890 | ||
3891 | /* QoS */ | |
3892 | module_param_named(qos_enable, iwl4965_mod_params.enable_qos, int, 0444); | |
3893 | MODULE_PARM_DESC(qos_enable, "enable all QoS functionality"); | |
3894 | module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, int, 0444); | |
3895 | MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); | |
3a1081e8 EK |
3896 | module_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, 0444); |
3897 | MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error"); |