?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
iwl: off by one bug
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / iwlwifi / iwl-4965.c
blob99331edd9d7523033811210586a513e999956cb7
1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
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 * Intel Linux Wireless <ilw@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/init.h>
30 #include <linux/pci.h>
31 #include <linux/dma-mapping.h>
32 #include <linux/delay.h>
33 #include <linux/sched.h>
34 #include <linux/skbuff.h>
35 #include <linux/netdevice.h>
36 #include <linux/wireless.h>
37 #include <net/mac80211.h>
38 #include <linux/etherdevice.h>
39 #include <asm/unaligned.h>
40
41 #include "iwl-eeprom.h"
42 #include "iwl-dev.h"
43 #include "iwl-core.h"
44 #include "iwl-io.h"
45 #include "iwl-helpers.h"
46 #include "iwl-calib.h"
47 #include "iwl-sta.h"
48
49 static int iwl4965_send_tx_power(struct iwl_priv *priv);
50 static int iwl4965_hw_get_temperature(struct iwl_priv *priv);
51
52 /* Highest firmware API version supported */
53 #define IWL4965_UCODE_API_MAX 2
54
55 /* Lowest firmware API version supported */
56 #define IWL4965_UCODE_API_MIN 2
57
58 #define IWL4965_FW_PRE "iwlwifi-4965-"
59 #define _IWL4965_MODULE_FIRMWARE(api) IWL4965_FW_PRE #api ".ucode"
60 #define IWL4965_MODULE_FIRMWARE(api) _IWL4965_MODULE_FIRMWARE(api)
61
62
63 /* module parameters */
64 static struct iwl_mod_params iwl4965_mod_params = {
65 .num_of_queues = IWL49_NUM_QUEUES,
66 .num_of_ampdu_queues = IWL49_NUM_AMPDU_QUEUES,
67 .amsdu_size_8K = 1,
68 .restart_fw = 1,
69 /* the rest are 0 by default */
70 };
71
72 /* check contents of special bootstrap uCode SRAM */
73 static int iwl4965_verify_bsm(struct iwl_priv *priv)
74 {
75 __le32 *image = priv->ucode_boot.v_addr;
76 u32 len = priv->ucode_boot.len;
77 u32 reg;
78 u32 val;
79
80 IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
81
82 /* verify BSM SRAM contents */
83 val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG);
84 for (reg = BSM_SRAM_LOWER_BOUND;
85 reg < BSM_SRAM_LOWER_BOUND + len;
86 reg += sizeof(u32), image++) {
87 val = iwl_read_prph(priv, reg);
88 if (val != le32_to_cpu(*image)) {
89 IWL_ERR(priv, "BSM uCode verification failed at "
90 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
91 BSM_SRAM_LOWER_BOUND,
92 reg - BSM_SRAM_LOWER_BOUND, len,
93 val, le32_to_cpu(*image));
94 return -EIO;
95 }
96 }
97
98 IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
99
100 return 0;
101 }
102
103 /**
104 * iwl4965_load_bsm - Load bootstrap instructions
105 *
106 * BSM operation:
107 *
108 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
109 * in special SRAM that does not power down during RFKILL. When powering back
110 * up after power-saving sleeps (or during initial uCode load), the BSM loads
111 * the bootstrap program into the on-board processor, and starts it.
112 *
113 * The bootstrap program loads (via DMA) instructions and data for a new
114 * program from host DRAM locations indicated by the host driver in the
115 * BSM_DRAM_* registers. Once the new program is loaded, it starts
116 * automatically.
117 *
118 * When initializing the NIC, the host driver points the BSM to the
119 * "initialize" uCode image. This uCode sets up some internal data, then
120 * notifies host via "initialize alive" that it is complete.
121 *
122 * The host then replaces the BSM_DRAM_* pointer values to point to the
123 * normal runtime uCode instructions and a backup uCode data cache buffer
124 * (filled initially with starting data values for the on-board processor),
125 * then triggers the "initialize" uCode to load and launch the runtime uCode,
126 * which begins normal operation.
127 *
128 * When doing a power-save shutdown, runtime uCode saves data SRAM into
129 * the backup data cache in DRAM before SRAM is powered down.
130 *
131 * When powering back up, the BSM loads the bootstrap program. This reloads
132 * the runtime uCode instructions and the backup data cache into SRAM,
133 * and re-launches the runtime uCode from where it left off.
134 */
135 static int iwl4965_load_bsm(struct iwl_priv *priv)
136 {
137 __le32 *image = priv->ucode_boot.v_addr;
138 u32 len = priv->ucode_boot.len;
139 dma_addr_t pinst;
140 dma_addr_t pdata;
141 u32 inst_len;
142 u32 data_len;
143 int i;
144 u32 done;
145 u32 reg_offset;
146 int ret;
147
148 IWL_DEBUG_INFO(priv, "Begin load bsm\n");
149
150 priv->ucode_type = UCODE_RT;
151
152 /* make sure bootstrap program is no larger than BSM's SRAM size */
153 if (len > IWL49_MAX_BSM_SIZE)
154 return -EINVAL;
155
156 /* Tell bootstrap uCode where to find the "Initialize" uCode
157 * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
158 * NOTE: iwl_init_alive_start() will replace these values,
159 * after the "initialize" uCode has run, to point to
160 * runtime/protocol instructions and backup data cache.
161 */
162 pinst = priv->ucode_init.p_addr >> 4;
163 pdata = priv->ucode_init_data.p_addr >> 4;
164 inst_len = priv->ucode_init.len;
165 data_len = priv->ucode_init_data.len;
166
167 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
168 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
169 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
170 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
171
172 /* Fill BSM memory with bootstrap instructions */
173 for (reg_offset = BSM_SRAM_LOWER_BOUND;
174 reg_offset < BSM_SRAM_LOWER_BOUND + len;
175 reg_offset += sizeof(u32), image++)
176 _iwl_write_prph(priv, reg_offset, le32_to_cpu(*image));
177
178 ret = iwl4965_verify_bsm(priv);
179 if (ret)
180 return ret;
181
182 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
183 iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
184 iwl_write_prph(priv, BSM_WR_MEM_DST_REG, IWL49_RTC_INST_LOWER_BOUND);
185 iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
186
187 /* Load bootstrap code into instruction SRAM now,
188 * to prepare to load "initialize" uCode */
189 iwl_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START);
190
191 /* Wait for load of bootstrap uCode to finish */
192 for (i = 0; i < 100; i++) {
193 done = iwl_read_prph(priv, BSM_WR_CTRL_REG);
194 if (!(done & BSM_WR_CTRL_REG_BIT_START))
195 break;
196 udelay(10);
197 }
198 if (i < 100)
199 IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
200 else {
201 IWL_ERR(priv, "BSM write did not complete!\n");
202 return -EIO;
203 }
204
205 /* Enable future boot loads whenever power management unit triggers it
206 * (e.g. when powering back up after power-save shutdown) */
207 iwl_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN);
208
209
210 return 0;
211 }
212
213 /**
214 * iwl4965_set_ucode_ptrs - Set uCode address location
215 *
216 * Tell initialization uCode where to find runtime uCode.
217 *
218 * BSM registers initially contain pointers to initialization uCode.
219 * We need to replace them to load runtime uCode inst and data,
220 * and to save runtime data when powering down.
221 */
222 static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv)
223 {
224 dma_addr_t pinst;
225 dma_addr_t pdata;
226 int ret = 0;
227
228 /* bits 35:4 for 4965 */
229 pinst = priv->ucode_code.p_addr >> 4;
230 pdata = priv->ucode_data_backup.p_addr >> 4;
231
232 /* Tell bootstrap uCode where to find image to load */
233 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
234 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
235 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
236 priv->ucode_data.len);
237
238 /* Inst byte count must be last to set up, bit 31 signals uCode
239 * that all new ptr/size info is in place */
240 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
241 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
242 IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
243
244 return ret;
245 }
246
247 /**
248 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
249 *
250 * Called after REPLY_ALIVE notification received from "initialize" uCode.
251 *
252 * The 4965 "initialize" ALIVE reply contains calibration data for:
253 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
254 * (3945 does not contain this data).
255 *
256 * Tell "initialize" uCode to go ahead and load the runtime uCode.
257 */
258 static void iwl4965_init_alive_start(struct iwl_priv *priv)
259 {
260 /* Check alive response for "valid" sign from uCode */
261 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
262 /* We had an error bringing up the hardware, so take it
263 * all the way back down so we can try again */
264 IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
265 goto restart;
266 }
267
268 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
269 * This is a paranoid check, because we would not have gotten the
270 * "initialize" alive if code weren't properly loaded. */
271 if (iwl_verify_ucode(priv)) {
272 /* Runtime instruction load was bad;
273 * take it all the way back down so we can try again */
274 IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
275 goto restart;
276 }
277
278 /* Calculate temperature */
279 priv->temperature = iwl4965_hw_get_temperature(priv);
280
281 /* Send pointers to protocol/runtime uCode image ... init code will
282 * load and launch runtime uCode, which will send us another "Alive"
283 * notification. */
284 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
285 if (iwl4965_set_ucode_ptrs(priv)) {
286 /* Runtime instruction load won't happen;
287 * take it all the way back down so we can try again */
288 IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
289 goto restart;
290 }
291 return;
292
293 restart:
294 queue_work(priv->workqueue, &priv->restart);
295 }
296
297 static bool is_ht40_channel(__le32 rxon_flags)
298 {
299 int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK)
300 >> RXON_FLG_CHANNEL_MODE_POS;
301 return ((chan_mod == CHANNEL_MODE_PURE_40) ||
302 (chan_mod == CHANNEL_MODE_MIXED));
303 }
304
305 /*
306 * EEPROM handlers
307 */
308 static u16 iwl4965_eeprom_calib_version(struct iwl_priv *priv)
309 {
310 return iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET);
311 }
312
313 /*
314 * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
315 * must be called under priv->lock and mac access
316 */
317 static void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask)
318 {
319 iwl_write_prph(priv, IWL49_SCD_TXFACT, mask);
320 }
321
322 static int iwl4965_apm_init(struct iwl_priv *priv)
323 {
324 int ret = 0;
325
326 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
327 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
328
329 /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
330 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
331 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
332
333 /* set "initialization complete" bit to move adapter
334 * D0U* --> D0A* state */
335 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
336
337 /* wait for clock stabilization */
338 ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
339 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
340 if (ret < 0) {
341 IWL_DEBUG_INFO(priv, "Failed to init the card\n");
342 goto out;
343 }
344
345 /* enable DMA */
346 iwl_write_prph(priv, APMG_CLK_CTRL_REG, APMG_CLK_VAL_DMA_CLK_RQT |
347 APMG_CLK_VAL_BSM_CLK_RQT);
348
349 udelay(20);
350
351 /* disable L1-Active */
352 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
353 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
354
355 out:
356 return ret;
357 }
358
359
360 static void iwl4965_nic_config(struct iwl_priv *priv)
361 {
362 unsigned long flags;
363 u16 radio_cfg;
364 u16 lctl;
365
366 spin_lock_irqsave(&priv->lock, flags);
367
368 lctl = iwl_pcie_link_ctl(priv);
369
370 /* HW bug W/A - negligible power consumption */
371 /* L1-ASPM is enabled by BIOS */
372 if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
373 /* L1-ASPM enabled: disable L0S */
374 iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
375 else
376 /* L1-ASPM disabled: enable L0S */
377 iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
378
379 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
380
381 /* write radio config values to register */
382 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX)
383 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
384 EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
385 EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
386 EEPROM_RF_CFG_DASH_MSK(radio_cfg));
387
388 /* set CSR_HW_CONFIG_REG for uCode use */
389 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
390 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
391 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
392
393 priv->calib_info = (struct iwl_eeprom_calib_info *)
394 iwl_eeprom_query_addr(priv, EEPROM_4965_CALIB_TXPOWER_OFFSET);
395
396 spin_unlock_irqrestore(&priv->lock, flags);
397 }
398
399 static int iwl4965_apm_stop_master(struct iwl_priv *priv)
400 {
401 unsigned long flags;
402
403 spin_lock_irqsave(&priv->lock, flags);
404
405 /* set stop master bit */
406 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
407
408 iwl_poll_direct_bit(priv, CSR_RESET,
409 CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
410
411 spin_unlock_irqrestore(&priv->lock, flags);
412 IWL_DEBUG_INFO(priv, "stop master\n");
413
414 return 0;
415 }
416
417 static void iwl4965_apm_stop(struct iwl_priv *priv)
418 {
419 unsigned long flags;
420
421 iwl4965_apm_stop_master(priv);
422
423 spin_lock_irqsave(&priv->lock, flags);
424
425 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
426
427 udelay(10);
428 /* clear "init complete" move adapter D0A* --> D0U state */
429 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
430 spin_unlock_irqrestore(&priv->lock, flags);
431 }
432
433 static int iwl4965_apm_reset(struct iwl_priv *priv)
434 {
435 int ret = 0;
436
437 iwl4965_apm_stop_master(priv);
438
439
440 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
441
442 udelay(10);
443
444 /* FIXME: put here L1A -L0S w/a */
445
446 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
447
448 ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
449 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
450 if (ret < 0)
451 goto out;
452
453 udelay(10);
454
455 /* Enable DMA and BSM Clock */
456 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT |
457 APMG_CLK_VAL_BSM_CLK_RQT);
458
459 udelay(10);
460
461 /* disable L1A */
462 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
463 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
464
465 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
466 wake_up_interruptible(&priv->wait_command_queue);
467
468 out:
469 return ret;
470 }
471
472 /* Reset differential Rx gains in NIC to prepare for chain noise calibration.
473 * Called after every association, but this runs only once!
474 * ... once chain noise is calibrated the first time, it's good forever. */
475 static void iwl4965_chain_noise_reset(struct iwl_priv *priv)
476 {
477 struct iwl_chain_noise_data *data = &(priv->chain_noise_data);
478
479 if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
480 struct iwl_calib_diff_gain_cmd cmd;
481
482 memset(&cmd, 0, sizeof(cmd));
483 cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
484 cmd.diff_gain_a = 0;
485 cmd.diff_gain_b = 0;
486 cmd.diff_gain_c = 0;
487 if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
488 sizeof(cmd), &cmd))
489 IWL_ERR(priv,
490 "Could not send REPLY_PHY_CALIBRATION_CMD\n");
491 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
492 IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n");
493 }
494 }
495
496 static void iwl4965_gain_computation(struct iwl_priv *priv,
497 u32 *average_noise,
498 u16 min_average_noise_antenna_i,
499 u32 min_average_noise)
500 {
501 int i, ret;
502 struct iwl_chain_noise_data *data = &priv->chain_noise_data;
503
504 data->delta_gain_code[min_average_noise_antenna_i] = 0;
505
506 for (i = 0; i < NUM_RX_CHAINS; i++) {
507 s32 delta_g = 0;
508
509 if (!(data->disconn_array[i]) &&
510 (data->delta_gain_code[i] ==
511 CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) {
512 delta_g = average_noise[i] - min_average_noise;
513 data->delta_gain_code[i] = (u8)((delta_g * 10) / 15);
514 data->delta_gain_code[i] =
515 min(data->delta_gain_code[i],
516 (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
517
518 data->delta_gain_code[i] =
519 (data->delta_gain_code[i] | (1 << 2));
520 } else {
521 data->delta_gain_code[i] = 0;
522 }
523 }
524 IWL_DEBUG_CALIB(priv, "delta_gain_codes: a %d b %d c %d\n",
525 data->delta_gain_code[0],
526 data->delta_gain_code[1],
527 data->delta_gain_code[2]);
528
529 /* Differential gain gets sent to uCode only once */
530 if (!data->radio_write) {
531 struct iwl_calib_diff_gain_cmd cmd;
532 data->radio_write = 1;
533
534 memset(&cmd, 0, sizeof(cmd));
535 cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
536 cmd.diff_gain_a = data->delta_gain_code[0];
537 cmd.diff_gain_b = data->delta_gain_code[1];
538 cmd.diff_gain_c = data->delta_gain_code[2];
539 ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
540 sizeof(cmd), &cmd);
541 if (ret)
542 IWL_DEBUG_CALIB(priv, "fail sending cmd "
543 "REPLY_PHY_CALIBRATION_CMD \n");
544
545 /* TODO we might want recalculate
546 * rx_chain in rxon cmd */
547
548 /* Mark so we run this algo only once! */
549 data->state = IWL_CHAIN_NOISE_CALIBRATED;
550 }
551 data->chain_noise_a = 0;
552 data->chain_noise_b = 0;
553 data->chain_noise_c = 0;
554 data->chain_signal_a = 0;
555 data->chain_signal_b = 0;
556 data->chain_signal_c = 0;
557 data->beacon_count = 0;
558 }
559
560 static void iwl4965_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
561 __le32 *tx_flags)
562 {
563 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
564 *tx_flags |= TX_CMD_FLG_RTS_MSK;
565 *tx_flags &= ~TX_CMD_FLG_CTS_MSK;
566 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
567 *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
568 *tx_flags |= TX_CMD_FLG_CTS_MSK;
569 }
570 }
571
572 static void iwl4965_bg_txpower_work(struct work_struct *work)
573 {
574 struct iwl_priv *priv = container_of(work, struct iwl_priv,
575 txpower_work);
576
577 /* If a scan happened to start before we got here
578 * then just return; the statistics notification will
579 * kick off another scheduled work to compensate for
580 * any temperature delta we missed here. */
581 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
582 test_bit(STATUS_SCANNING, &priv->status))
583 return;
584
585 mutex_lock(&priv->mutex);
586
587 /* Regardless of if we are associated, we must reconfigure the
588 * TX power since frames can be sent on non-radar channels while
589 * not associated */
590 iwl4965_send_tx_power(priv);
591
592 /* Update last_temperature to keep is_calib_needed from running
593 * when it isn't needed... */
594 priv->last_temperature = priv->temperature;
595
596 mutex_unlock(&priv->mutex);
597 }
598
599 /*
600 * Acquire priv->lock before calling this function !
601 */
602 static void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index)
603 {
604 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
605 (index & 0xff) | (txq_id << 8));
606 iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index);
607 }
608
609 /**
610 * iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
611 * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
612 * @scd_retry: (1) Indicates queue will be used in aggregation mode
613 *
614 * NOTE: Acquire priv->lock before calling this function !
615 */
616 static void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
617 struct iwl_tx_queue *txq,
618 int tx_fifo_id, int scd_retry)
619 {
620 int txq_id = txq->q.id;
621
622 /* Find out whether to activate Tx queue */
623 int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0;
624
625 /* Set up and activate */
626 iwl_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
627 (active << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
628 (tx_fifo_id << IWL49_SCD_QUEUE_STTS_REG_POS_TXF) |
629 (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_WSL) |
630 (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) |
631 IWL49_SCD_QUEUE_STTS_REG_MSK);
632
633 txq->sched_retry = scd_retry;
634
635 IWL_DEBUG_INFO(priv, "%s %s Queue %d on AC %d\n",
636 active ? "Activate" : "Deactivate",
637 scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
638 }
639
640 static const u16 default_queue_to_tx_fifo[] = {
641 IWL_TX_FIFO_AC3,
642 IWL_TX_FIFO_AC2,
643 IWL_TX_FIFO_AC1,
644 IWL_TX_FIFO_AC0,
645 IWL49_CMD_FIFO_NUM,
646 IWL_TX_FIFO_HCCA_1,
647 IWL_TX_FIFO_HCCA_2
648 };
649
650 static int iwl4965_alive_notify(struct iwl_priv *priv)
651 {
652 u32 a;
653 unsigned long flags;
654 int i, chan;
655 u32 reg_val;
656
657 spin_lock_irqsave(&priv->lock, flags);
658
659 /* Clear 4965's internal Tx Scheduler data base */
660 priv->scd_base_addr = iwl_read_prph(priv, IWL49_SCD_SRAM_BASE_ADDR);
661 a = priv->scd_base_addr + IWL49_SCD_CONTEXT_DATA_OFFSET;
662 for (; a < priv->scd_base_addr + IWL49_SCD_TX_STTS_BITMAP_OFFSET; a += 4)
663 iwl_write_targ_mem(priv, a, 0);
664 for (; a < priv->scd_base_addr + IWL49_SCD_TRANSLATE_TBL_OFFSET; a += 4)
665 iwl_write_targ_mem(priv, a, 0);
666 for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
667 iwl_write_targ_mem(priv, a, 0);
668
669 /* Tel 4965 where to find Tx byte count tables */
670 iwl_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR,
671 priv->scd_bc_tbls.dma >> 10);
672
673 /* Enable DMA channel */
674 for (chan = 0; chan < FH49_TCSR_CHNL_NUM ; chan++)
675 iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
676 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
677 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
678
679 /* Update FH chicken bits */
680 reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
681 iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
682 reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
683
684 /* Disable chain mode for all queues */
685 iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0);
686
687 /* Initialize each Tx queue (including the command queue) */
688 for (i = 0; i < priv->hw_params.max_txq_num; i++) {
689
690 /* TFD circular buffer read/write indexes */
691 iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(i), 0);
692 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
693
694 /* Max Tx Window size for Scheduler-ACK mode */
695 iwl_write_targ_mem(priv, priv->scd_base_addr +
696 IWL49_SCD_CONTEXT_QUEUE_OFFSET(i),
697 (SCD_WIN_SIZE <<
698 IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
699 IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
700
701 /* Frame limit */
702 iwl_write_targ_mem(priv, priv->scd_base_addr +
703 IWL49_SCD_CONTEXT_QUEUE_OFFSET(i) +
704 sizeof(u32),
705 (SCD_FRAME_LIMIT <<
706 IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
707 IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
708
709 }
710 iwl_write_prph(priv, IWL49_SCD_INTERRUPT_MASK,
711 (1 << priv->hw_params.max_txq_num) - 1);
712
713 /* Activate all Tx DMA/FIFO channels */
714 priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 6));
715
716 iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
717
718 /* Map each Tx/cmd queue to its corresponding fifo */
719 for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) {
720 int ac = default_queue_to_tx_fifo[i];
721 iwl_txq_ctx_activate(priv, i);
722 iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
723 }
724
725 spin_unlock_irqrestore(&priv->lock, flags);
726
727 return 0;
728 }
729
730 static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
731 .min_nrg_cck = 97,
732 .max_nrg_cck = 0, /* not used, set to 0 */
733
734 .auto_corr_min_ofdm = 85,
735 .auto_corr_min_ofdm_mrc = 170,
736 .auto_corr_min_ofdm_x1 = 105,
737 .auto_corr_min_ofdm_mrc_x1 = 220,
738
739 .auto_corr_max_ofdm = 120,
740 .auto_corr_max_ofdm_mrc = 210,
741 .auto_corr_max_ofdm_x1 = 140,
742 .auto_corr_max_ofdm_mrc_x1 = 270,
743
744 .auto_corr_min_cck = 125,
745 .auto_corr_max_cck = 200,
746 .auto_corr_min_cck_mrc = 200,
747 .auto_corr_max_cck_mrc = 400,
748
749 .nrg_th_cck = 100,
750 .nrg_th_ofdm = 100,
751 };
752
753 static void iwl4965_set_ct_threshold(struct iwl_priv *priv)
754 {
755 /* want Kelvin */
756 priv->hw_params.ct_kill_threshold =
757 CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY);
758 }
759
760 /**
761 * iwl4965_hw_set_hw_params
762 *
763 * Called when initializing driver
764 */
765 static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
766 {
767
768 if ((priv->cfg->mod_params->num_of_queues > IWL49_NUM_QUEUES) ||
769 (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
770 IWL_ERR(priv,
771 "invalid queues_num, should be between %d and %d\n",
772 IWL_MIN_NUM_QUEUES, IWL49_NUM_QUEUES);
773 return -EINVAL;
774 }
775
776 priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
777 priv->hw_params.dma_chnl_num = FH49_TCSR_CHNL_NUM;
778 priv->hw_params.scd_bc_tbls_size =
779 IWL49_NUM_QUEUES * sizeof(struct iwl4965_scd_bc_tbl);
780 priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
781 priv->hw_params.max_stations = IWL4965_STATION_COUNT;
782 priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID;
783 priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE;
784 priv->hw_params.max_inst_size = IWL49_RTC_INST_SIZE;
785 priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
786 priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ);
787
788 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
789
790 priv->hw_params.tx_chains_num = 2;
791 priv->hw_params.rx_chains_num = 2;
792 priv->hw_params.valid_tx_ant = ANT_A | ANT_B;
793 priv->hw_params.valid_rx_ant = ANT_A | ANT_B;
794 if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
795 priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
796
797 priv->hw_params.sens = &iwl4965_sensitivity;
798
799 return 0;
800 }
801
802 static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res)
803 {
804 s32 sign = 1;
805
806 if (num < 0) {
807 sign = -sign;
808 num = -num;
809 }
810 if (denom < 0) {
811 sign = -sign;
812 denom = -denom;
813 }
814 *res = 1;
815 *res = ((num * 2 + denom) / (denom * 2)) * sign;
816
817 return 1;
818 }
819
820 /**
821 * iwl4965_get_voltage_compensation - Power supply voltage comp for txpower
822 *
823 * Determines power supply voltage compensation for txpower calculations.
824 * Returns number of 1/2-dB steps to subtract from gain table index,
825 * to compensate for difference between power supply voltage during
826 * factory measurements, vs. current power supply voltage.
827 *
828 * Voltage indication is higher for lower voltage.
829 * Lower voltage requires more gain (lower gain table index).
830 */
831 static s32 iwl4965_get_voltage_compensation(s32 eeprom_voltage,
832 s32 current_voltage)
833 {
834 s32 comp = 0;
835
836 if ((TX_POWER_IWL_ILLEGAL_VOLTAGE == eeprom_voltage) ||
837 (TX_POWER_IWL_ILLEGAL_VOLTAGE == current_voltage))
838 return 0;
839
840 iwl4965_math_div_round(current_voltage - eeprom_voltage,
841 TX_POWER_IWL_VOLTAGE_CODES_PER_03V, &comp);
842
843 if (current_voltage > eeprom_voltage)
844 comp *= 2;
845 if ((comp < -2) || (comp > 2))
846 comp = 0;
847
848 return comp;
849 }
850
851 static s32 iwl4965_get_tx_atten_grp(u16 channel)
852 {
853 if (channel >= CALIB_IWL_TX_ATTEN_GR5_FCH &&
854 channel <= CALIB_IWL_TX_ATTEN_GR5_LCH)
855 return CALIB_CH_GROUP_5;
856
857 if (channel >= CALIB_IWL_TX_ATTEN_GR1_FCH &&
858 channel <= CALIB_IWL_TX_ATTEN_GR1_LCH)
859 return CALIB_CH_GROUP_1;
860
861 if (channel >= CALIB_IWL_TX_ATTEN_GR2_FCH &&
862 channel <= CALIB_IWL_TX_ATTEN_GR2_LCH)
863 return CALIB_CH_GROUP_2;
864
865 if (channel >= CALIB_IWL_TX_ATTEN_GR3_FCH &&
866 channel <= CALIB_IWL_TX_ATTEN_GR3_LCH)
867 return CALIB_CH_GROUP_3;
868
869 if (channel >= CALIB_IWL_TX_ATTEN_GR4_FCH &&
870 channel <= CALIB_IWL_TX_ATTEN_GR4_LCH)
871 return CALIB_CH_GROUP_4;
872
873 return -1;
874 }
875
876 static u32 iwl4965_get_sub_band(const struct iwl_priv *priv, u32 channel)
877 {
878 s32 b = -1;
879
880 for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) {
881 if (priv->calib_info->band_info[b].ch_from == 0)
882 continue;
883
884 if ((channel >= priv->calib_info->band_info[b].ch_from)
885 && (channel <= priv->calib_info->band_info[b].ch_to))
886 break;
887 }
888
889 return b;
890 }
891
892 static s32 iwl4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
893 {
894 s32 val;
895
896 if (x2 == x1)
897 return y1;
898 else {
899 iwl4965_math_div_round((x2 - x) * (y1 - y2), (x2 - x1), &val);
900 return val + y2;
901 }
902 }
903
904 /**
905 * iwl4965_interpolate_chan - Interpolate factory measurements for one channel
906 *
907 * Interpolates factory measurements from the two sample channels within a
908 * sub-band, to apply to channel of interest. Interpolation is proportional to
909 * differences in channel frequencies, which is proportional to differences
910 * in channel number.
911 */
912 static int iwl4965_interpolate_chan(struct iwl_priv *priv, u32 channel,
913 struct iwl_eeprom_calib_ch_info *chan_info)
914 {
915 s32 s = -1;
916 u32 c;
917 u32 m;
918 const struct iwl_eeprom_calib_measure *m1;
919 const struct iwl_eeprom_calib_measure *m2;
920 struct iwl_eeprom_calib_measure *omeas;
921 u32 ch_i1;
922 u32 ch_i2;
923
924 s = iwl4965_get_sub_band(priv, channel);
925 if (s >= EEPROM_TX_POWER_BANDS) {
926 IWL_ERR(priv, "Tx Power can not find channel %d\n", channel);
927 return -1;
928 }
929
930 ch_i1 = priv->calib_info->band_info[s].ch1.ch_num;
931 ch_i2 = priv->calib_info->band_info[s].ch2.ch_num;
932 chan_info->ch_num = (u8) channel;
933
934 IWL_DEBUG_TXPOWER(priv, "channel %d subband %d factory cal ch %d & %d\n",
935 channel, s, ch_i1, ch_i2);
936
937 for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) {
938 for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) {
939 m1 = &(priv->calib_info->band_info[s].ch1.
940 measurements[c][m]);
941 m2 = &(priv->calib_info->band_info[s].ch2.
942 measurements[c][m]);
943 omeas = &(chan_info->measurements[c][m]);
944
945 omeas->actual_pow =
946 (u8) iwl4965_interpolate_value(channel, ch_i1,
947 m1->actual_pow,
948 ch_i2,
949 m2->actual_pow);
950 omeas->gain_idx =
951 (u8) iwl4965_interpolate_value(channel, ch_i1,
952 m1->gain_idx, ch_i2,
953 m2->gain_idx);
954 omeas->temperature =
955 (u8) iwl4965_interpolate_value(channel, ch_i1,
956 m1->temperature,
957 ch_i2,
958 m2->temperature);
959 omeas->pa_det =
960 (s8) iwl4965_interpolate_value(channel, ch_i1,
961 m1->pa_det, ch_i2,
962 m2->pa_det);
963
964 IWL_DEBUG_TXPOWER(priv,
965 "chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, m,
966 m1->actual_pow, m2->actual_pow, omeas->actual_pow);
967 IWL_DEBUG_TXPOWER(priv,
968 "chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, m,
969 m1->gain_idx, m2->gain_idx, omeas->gain_idx);
970 IWL_DEBUG_TXPOWER(priv,
971 "chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, m,
972 m1->pa_det, m2->pa_det, omeas->pa_det);
973 IWL_DEBUG_TXPOWER(priv,
974 "chain %d meas %d T1=%d T2=%d T=%d\n", c, m,
975 m1->temperature, m2->temperature,
976 omeas->temperature);
977 }
978 }
979
980 return 0;
981 }
982
983 /* bit-rate-dependent table to prevent Tx distortion, in half-dB units,
984 * for OFDM 6, 12, 18, 24, 36, 48, 54, 60 MBit, and CCK all rates. */
985 static s32 back_off_table[] = {
986 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 20 MHz */
987 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 20 MHz */
988 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 40 MHz */
989 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 40 MHz */
990 10 /* CCK */
991 };
992
993 /* Thermal compensation values for txpower for various frequency ranges ...
994 * ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */
995 static struct iwl4965_txpower_comp_entry {
996 s32 degrees_per_05db_a;
997 s32 degrees_per_05db_a_denom;
998 } tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = {
999 {9, 2}, /* group 0 5.2, ch 34-43 */
1000 {4, 1}, /* group 1 5.2, ch 44-70 */
1001 {4, 1}, /* group 2 5.2, ch 71-124 */
1002 {4, 1}, /* group 3 5.2, ch 125-200 */
1003 {3, 1} /* group 4 2.4, ch all */
1004 };
1005
1006 static s32 get_min_power_index(s32 rate_power_index, u32 band)
1007 {
1008 if (!band) {
1009 if ((rate_power_index & 7) <= 4)
1010 return MIN_TX_GAIN_INDEX_52GHZ_EXT;
1011 }
1012 return MIN_TX_GAIN_INDEX;
1013 }
1014
1015 struct gain_entry {
1016 u8 dsp;
1017 u8 radio;
1018 };
1019
1020 static const struct gain_entry gain_table[2][108] = {
1021 /* 5.2GHz power gain index table */
1022 {
1023 {123, 0x3F}, /* highest txpower */
1024 {117, 0x3F},
1025 {110, 0x3F},
1026 {104, 0x3F},
1027 {98, 0x3F},
1028 {110, 0x3E},
1029 {104, 0x3E},
1030 {98, 0x3E},
1031 {110, 0x3D},
1032 {104, 0x3D},
1033 {98, 0x3D},
1034 {110, 0x3C},
1035 {104, 0x3C},
1036 {98, 0x3C},
1037 {110, 0x3B},
1038 {104, 0x3B},
1039 {98, 0x3B},
1040 {110, 0x3A},
1041 {104, 0x3A},
1042 {98, 0x3A},
1043 {110, 0x39},
1044 {104, 0x39},
1045 {98, 0x39},
1046 {110, 0x38},
1047 {104, 0x38},
1048 {98, 0x38},
1049 {110, 0x37},
1050 {104, 0x37},
1051 {98, 0x37},
1052 {110, 0x36},
1053 {104, 0x36},
1054 {98, 0x36},
1055 {110, 0x35},
1056 {104, 0x35},
1057 {98, 0x35},
1058 {110, 0x34},
1059 {104, 0x34},
1060 {98, 0x34},
1061 {110, 0x33},
1062 {104, 0x33},
1063 {98, 0x33},
1064 {110, 0x32},
1065 {104, 0x32},
1066 {98, 0x32},
1067 {110, 0x31},
1068 {104, 0x31},
1069 {98, 0x31},
1070 {110, 0x30},
1071 {104, 0x30},
1072 {98, 0x30},
1073 {110, 0x25},
1074 {104, 0x25},
1075 {98, 0x25},
1076 {110, 0x24},
1077 {104, 0x24},
1078 {98, 0x24},
1079 {110, 0x23},
1080 {104, 0x23},
1081 {98, 0x23},
1082 {110, 0x22},
1083 {104, 0x18},
1084 {98, 0x18},
1085 {110, 0x17},
1086 {104, 0x17},
1087 {98, 0x17},
1088 {110, 0x16},
1089 {104, 0x16},
1090 {98, 0x16},
1091 {110, 0x15},
1092 {104, 0x15},
1093 {98, 0x15},
1094 {110, 0x14},
1095 {104, 0x14},
1096 {98, 0x14},
1097 {110, 0x13},
1098 {104, 0x13},
1099 {98, 0x13},
1100 {110, 0x12},
1101 {104, 0x08},
1102 {98, 0x08},
1103 {110, 0x07},
1104 {104, 0x07},
1105 {98, 0x07},
1106 {110, 0x06},
1107 {104, 0x06},
1108 {98, 0x06},
1109 {110, 0x05},
1110 {104, 0x05},
1111 {98, 0x05},
1112 {110, 0x04},
1113 {104, 0x04},
1114 {98, 0x04},
1115 {110, 0x03},
1116 {104, 0x03},
1117 {98, 0x03},
1118 {110, 0x02},
1119 {104, 0x02},
1120 {98, 0x02},
1121 {110, 0x01},
1122 {104, 0x01},
1123 {98, 0x01},
1124 {110, 0x00},
1125 {104, 0x00},
1126 {98, 0x00},
1127 {93, 0x00},
1128 {88, 0x00},
1129 {83, 0x00},
1130 {78, 0x00},
1131 },
1132 /* 2.4GHz power gain index table */
1133 {
1134 {110, 0x3f}, /* highest txpower */
1135 {104, 0x3f},
1136 {98, 0x3f},
1137 {110, 0x3e},
1138 {104, 0x3e},
1139 {98, 0x3e},
1140 {110, 0x3d},
1141 {104, 0x3d},
1142 {98, 0x3d},
1143 {110, 0x3c},
1144 {104, 0x3c},
1145 {98, 0x3c},
1146 {110, 0x3b},
1147 {104, 0x3b},
1148 {98, 0x3b},
1149 {110, 0x3a},
1150 {104, 0x3a},
1151 {98, 0x3a},
1152 {110, 0x39},
1153 {104, 0x39},
1154 {98, 0x39},
1155 {110, 0x38},
1156 {104, 0x38},
1157 {98, 0x38},
1158 {110, 0x37},
1159 {104, 0x37},
1160 {98, 0x37},
1161 {110, 0x36},
1162 {104, 0x36},
1163 {98, 0x36},
1164 {110, 0x35},
1165 {104, 0x35},
1166 {98, 0x35},
1167 {110, 0x34},
1168 {104, 0x34},
1169 {98, 0x34},
1170 {110, 0x33},
1171 {104, 0x33},
1172 {98, 0x33},
1173 {110, 0x32},
1174 {104, 0x32},
1175 {98, 0x32},
1176 {110, 0x31},
1177 {104, 0x31},
1178 {98, 0x31},
1179 {110, 0x30},
1180 {104, 0x30},
1181 {98, 0x30},
1182 {110, 0x6},
1183 {104, 0x6},
1184 {98, 0x6},
1185 {110, 0x5},
1186 {104, 0x5},
1187 {98, 0x5},
1188 {110, 0x4},
1189 {104, 0x4},
1190 {98, 0x4},
1191 {110, 0x3},
1192 {104, 0x3},
1193 {98, 0x3},
1194 {110, 0x2},
1195 {104, 0x2},
1196 {98, 0x2},
1197 {110, 0x1},
1198 {104, 0x1},
1199 {98, 0x1},
1200 {110, 0x0},
1201 {104, 0x0},
1202 {98, 0x0},
1203 {97, 0},
1204 {96, 0},
1205 {95, 0},
1206 {94, 0},
1207 {93, 0},
1208 {92, 0},
1209 {91, 0},
1210 {90, 0},
1211 {89, 0},
1212 {88, 0},
1213 {87, 0},
1214 {86, 0},
1215 {85, 0},
1216 {84, 0},
1217 {83, 0},
1218 {82, 0},
1219 {81, 0},
1220 {80, 0},
1221 {79, 0},
1222 {78, 0},
1223 {77, 0},
1224 {76, 0},
1225 {75, 0},
1226 {74, 0},
1227 {73, 0},
1228 {72, 0},
1229 {71, 0},
1230 {70, 0},
1231 {69, 0},
1232 {68, 0},
1233 {67, 0},
1234 {66, 0},
1235 {65, 0},
1236 {64, 0},
1237 {63, 0},
1238 {62, 0},
1239 {61, 0},
1240 {60, 0},
1241 {59, 0},
1242 }
1243 };
1244
1245 static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
1246 u8 is_ht40, u8 ctrl_chan_high,
1247 struct iwl4965_tx_power_db *tx_power_tbl)
1248 {
1249 u8 saturation_power;
1250 s32 target_power;
1251 s32 user_target_power;
1252 s32 power_limit;
1253 s32 current_temp;
1254 s32 reg_limit;
1255 s32 current_regulatory;
1256 s32 txatten_grp = CALIB_CH_GROUP_MAX;
1257 int i;
1258 int c;
1259 const struct iwl_channel_info *ch_info = NULL;
1260 struct iwl_eeprom_calib_ch_info ch_eeprom_info;
1261 const struct iwl_eeprom_calib_measure *measurement;
1262 s16 voltage;
1263 s32 init_voltage;
1264 s32 voltage_compensation;
1265 s32 degrees_per_05db_num;
1266 s32 degrees_per_05db_denom;
1267 s32 factory_temp;
1268 s32 temperature_comp[2];
1269 s32 factory_gain_index[2];
1270 s32 factory_actual_pwr[2];
1271 s32 power_index;
1272
1273 /* tx_power_user_lmt is in dBm, convert to half-dBm (half-dB units
1274 * are used for indexing into txpower table) */
1275 user_target_power = 2 * priv->tx_power_user_lmt;
1276
1277 /* Get current (RXON) channel, band, width */
1278 IWL_DEBUG_TXPOWER(priv, "chan %d band %d is_ht40 %d\n", channel, band,
1279 is_ht40);
1280
1281 ch_info = iwl_get_channel_info(priv, priv->band, channel);
1282
1283 if (!is_channel_valid(ch_info))
1284 return -EINVAL;
1285
1286 /* get txatten group, used to select 1) thermal txpower adjustment
1287 * and 2) mimo txpower balance between Tx chains. */
1288 txatten_grp = iwl4965_get_tx_atten_grp(channel);
1289 if (txatten_grp < 0) {
1290 IWL_ERR(priv, "Can't find txatten group for channel %d.\n",
1291 channel);
1292 return -EINVAL;
1293 }
1294
1295 IWL_DEBUG_TXPOWER(priv, "channel %d belongs to txatten group %d\n",
1296 channel, txatten_grp);
1297
1298 if (is_ht40) {
1299 if (ctrl_chan_high)
1300 channel -= 2;
1301 else
1302 channel += 2;
1303 }
1304
1305 /* hardware txpower limits ...
1306 * saturation (clipping distortion) txpowers are in half-dBm */
1307 if (band)
1308 saturation_power = priv->calib_info->saturation_power24;
1309 else
1310 saturation_power = priv->calib_info->saturation_power52;
1311
1312 if (saturation_power < IWL_TX_POWER_SATURATION_MIN ||
1313 saturation_power > IWL_TX_POWER_SATURATION_MAX) {
1314 if (band)
1315 saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_24;
1316 else
1317 saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_52;
1318 }
1319
1320 /* regulatory txpower limits ... reg_limit values are in half-dBm,
1321 * max_power_avg values are in dBm, convert * 2 */
1322 if (is_ht40)
1323 reg_limit = ch_info->ht40_max_power_avg * 2;
1324 else
1325 reg_limit = ch_info->max_power_avg * 2;
1326
1327 if ((reg_limit < IWL_TX_POWER_REGULATORY_MIN) ||
1328 (reg_limit > IWL_TX_POWER_REGULATORY_MAX)) {
1329 if (band)
1330 reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_24;
1331 else
1332 reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_52;
1333 }
1334
1335 /* Interpolate txpower calibration values for this channel,
1336 * based on factory calibration tests on spaced channels. */
1337 iwl4965_interpolate_chan(priv, channel, &ch_eeprom_info);
1338
1339 /* calculate tx gain adjustment based on power supply voltage */
1340 voltage = le16_to_cpu(priv->calib_info->voltage);
1341 init_voltage = (s32)le32_to_cpu(priv->card_alive_init.voltage);
1342 voltage_compensation =
1343 iwl4965_get_voltage_compensation(voltage, init_voltage);
1344
1345 IWL_DEBUG_TXPOWER(priv, "curr volt %d eeprom volt %d volt comp %d\n",
1346 init_voltage,
1347 voltage, voltage_compensation);
1348
1349 /* get current temperature (Celsius) */
1350 current_temp = max(priv->temperature, IWL_TX_POWER_TEMPERATURE_MIN);
1351 current_temp = min(priv->temperature, IWL_TX_POWER_TEMPERATURE_MAX);
1352 current_temp = KELVIN_TO_CELSIUS(current_temp);
1353
1354 /* select thermal txpower adjustment params, based on channel group
1355 * (same frequency group used for mimo txatten adjustment) */
1356 degrees_per_05db_num =
1357 tx_power_cmp_tble[txatten_grp].degrees_per_05db_a;
1358 degrees_per_05db_denom =
1359 tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom;
1360
1361 /* get per-chain txpower values from factory measurements */
1362 for (c = 0; c < 2; c++) {
1363 measurement = &ch_eeprom_info.measurements[c][1];
1364
1365 /* txgain adjustment (in half-dB steps) based on difference
1366 * between factory and current temperature */
1367 factory_temp = measurement->temperature;
1368 iwl4965_math_div_round((current_temp - factory_temp) *
1369 degrees_per_05db_denom,
1370 degrees_per_05db_num,
1371 &temperature_comp[c]);
1372
1373 factory_gain_index[c] = measurement->gain_idx;
1374 factory_actual_pwr[c] = measurement->actual_pow;
1375
1376 IWL_DEBUG_TXPOWER(priv, "chain = %d\n", c);
1377 IWL_DEBUG_TXPOWER(priv, "fctry tmp %d, "
1378 "curr tmp %d, comp %d steps\n",
1379 factory_temp, current_temp,
1380 temperature_comp[c]);
1381
1382 IWL_DEBUG_TXPOWER(priv, "fctry idx %d, fctry pwr %d\n",
1383 factory_gain_index[c],
1384 factory_actual_pwr[c]);
1385 }
1386
1387 /* for each of 33 bit-rates (including 1 for CCK) */
1388 for (i = 0; i < POWER_TABLE_NUM_ENTRIES; i++) {
1389 u8 is_mimo_rate;
1390 union iwl4965_tx_power_dual_stream tx_power;
1391
1392 /* for mimo, reduce each chain's txpower by half
1393 * (3dB, 6 steps), so total output power is regulatory
1394 * compliant. */
1395 if (i & 0x8) {
1396 current_regulatory = reg_limit -
1397 IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION;
1398 is_mimo_rate = 1;
1399 } else {
1400 current_regulatory = reg_limit;
1401 is_mimo_rate = 0;
1402 }
1403
1404 /* find txpower limit, either hardware or regulatory */
1405 power_limit = saturation_power - back_off_table[i];
1406 if (power_limit > current_regulatory)
1407 power_limit = current_regulatory;
1408
1409 /* reduce user's txpower request if necessary
1410 * for this rate on this channel */
1411 target_power = user_target_power;
1412 if (target_power > power_limit)
1413 target_power = power_limit;
1414
1415 IWL_DEBUG_TXPOWER(priv, "rate %d sat %d reg %d usr %d tgt %d\n",
1416 i, saturation_power - back_off_table[i],
1417 current_regulatory, user_target_power,
1418 target_power);
1419
1420 /* for each of 2 Tx chains (radio transmitters) */
1421 for (c = 0; c < 2; c++) {
1422 s32 atten_value;
1423
1424 if (is_mimo_rate)
1425 atten_value =
1426 (s32)le32_to_cpu(priv->card_alive_init.
1427 tx_atten[txatten_grp][c]);
1428 else
1429 atten_value = 0;
1430
1431 /* calculate index; higher index means lower txpower */
1432 power_index = (u8) (factory_gain_index[c] -
1433 (target_power -
1434 factory_actual_pwr[c]) -
1435 temperature_comp[c] -
1436 voltage_compensation +
1437 atten_value);
1438
1439 /* IWL_DEBUG_TXPOWER(priv, "calculated txpower index %d\n",
1440 power_index); */
1441
1442 if (power_index < get_min_power_index(i, band))
1443 power_index = get_min_power_index(i, band);
1444
1445 /* adjust 5 GHz index to support negative indexes */
1446 if (!band)
1447 power_index += 9;
1448
1449 /* CCK, rate 32, reduce txpower for CCK */
1450 if (i == POWER_TABLE_CCK_ENTRY)
1451 power_index +=
1452 IWL_TX_POWER_CCK_COMPENSATION_C_STEP;
1453
1454 /* stay within the table! */
1455 if (power_index > 107) {
1456 IWL_WARN(priv, "txpower index %d > 107\n",
1457 power_index);
1458 power_index = 107;
1459 }
1460 if (power_index < 0) {
1461 IWL_WARN(priv, "txpower index %d < 0\n",
1462 power_index);
1463 power_index = 0;
1464 }
1465
1466 /* fill txpower command for this rate/chain */
1467 tx_power.s.radio_tx_gain[c] =
1468 gain_table[band][power_index].radio;
1469 tx_power.s.dsp_predis_atten[c] =
1470 gain_table[band][power_index].dsp;
1471
1472 IWL_DEBUG_TXPOWER(priv, "chain %d mimo %d index %d "
1473 "gain 0x%02x dsp %d\n",
1474 c, atten_value, power_index,
1475 tx_power.s.radio_tx_gain[c],
1476 tx_power.s.dsp_predis_atten[c]);
1477 } /* for each chain */
1478
1479 tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw);
1480
1481 } /* for each rate */
1482
1483 return 0;
1484 }
1485
1486 /**
1487 * iwl4965_send_tx_power - Configure the TXPOWER level user limit
1488 *
1489 * Uses the active RXON for channel, band, and characteristics (ht40, high)
1490 * The power limit is taken from priv->tx_power_user_lmt.
1491 */
1492 static int iwl4965_send_tx_power(struct iwl_priv *priv)
1493 {
1494 struct iwl4965_txpowertable_cmd cmd = { 0 };
1495 int ret;
1496 u8 band = 0;
1497 bool is_ht40 = false;
1498 u8 ctrl_chan_high = 0;
1499
1500 if (test_bit(STATUS_SCANNING, &priv->status)) {
1501 /* If this gets hit a lot, switch it to a BUG() and catch
1502 * the stack trace to find out who is calling this during
1503 * a scan. */
1504 IWL_WARN(priv, "TX Power requested while scanning!\n");
1505 return -EAGAIN;
1506 }
1507
1508 band = priv->band == IEEE80211_BAND_2GHZ;
1509
1510 is_ht40 = is_ht40_channel(priv->active_rxon.flags);
1511
1512 if (is_ht40 &&
1513 (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
1514 ctrl_chan_high = 1;
1515
1516 cmd.band = band;
1517 cmd.channel = priv->active_rxon.channel;
1518
1519 ret = iwl4965_fill_txpower_tbl(priv, band,
1520 le16_to_cpu(priv->active_rxon.channel),
1521 is_ht40, ctrl_chan_high, &cmd.tx_power);
1522 if (ret)
1523 goto out;
1524
1525 ret = iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd);
1526
1527 out:
1528 return ret;
1529 }
1530
1531 static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
1532 {
1533 int ret = 0;
1534 struct iwl4965_rxon_assoc_cmd rxon_assoc;
1535 const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
1536 const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
1537
1538 if ((rxon1->flags == rxon2->flags) &&
1539 (rxon1->filter_flags == rxon2->filter_flags) &&
1540 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1541 (rxon1->ofdm_ht_single_stream_basic_rates ==
1542 rxon2->ofdm_ht_single_stream_basic_rates) &&
1543 (rxon1->ofdm_ht_dual_stream_basic_rates ==
1544 rxon2->ofdm_ht_dual_stream_basic_rates) &&
1545 (rxon1->rx_chain == rxon2->rx_chain) &&
1546 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1547 IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
1548 return 0;
1549 }
1550
1551 rxon_assoc.flags = priv->staging_rxon.flags;
1552 rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
1553 rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
1554 rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
1555 rxon_assoc.reserved = 0;
1556 rxon_assoc.ofdm_ht_single_stream_basic_rates =
1557 priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
1558 rxon_assoc.ofdm_ht_dual_stream_basic_rates =
1559 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
1560 rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
1561
1562 ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
1563 sizeof(rxon_assoc), &rxon_assoc, NULL);
1564 if (ret)
1565 return ret;
1566
1567 return ret;
1568 }
1569
1570 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
1571 static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
1572 {
1573 int rc;
1574 u8 band = 0;
1575 bool is_ht40 = false;
1576 u8 ctrl_chan_high = 0;
1577 struct iwl4965_channel_switch_cmd cmd = { 0 };
1578 const struct iwl_channel_info *ch_info;
1579
1580 band = priv->band == IEEE80211_BAND_2GHZ;
1581
1582 ch_info = iwl_get_channel_info(priv, priv->band, channel);
1583
1584 is_ht40 = is_ht40_channel(priv->staging_rxon.flags);
1585
1586 if (is_ht40 &&
1587 (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
1588 ctrl_chan_high = 1;
1589
1590 cmd.band = band;
1591 cmd.expect_beacon = 0;
1592 cmd.channel = cpu_to_le16(channel);
1593 cmd.rxon_flags = priv->active_rxon.flags;
1594 cmd.rxon_filter_flags = priv->active_rxon.filter_flags;
1595 cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
1596 if (ch_info)
1597 cmd.expect_beacon = is_channel_radar(ch_info);
1598 else
1599 cmd.expect_beacon = 1;
1600
1601 rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_ht40,
1602 ctrl_chan_high, &cmd.tx_power);
1603 if (rc) {
1604 IWL_DEBUG_11H(priv, "error:%d fill txpower_tbl\n", rc);
1605 return rc;
1606 }
1607
1608 rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
1609 return rc;
1610 }
1611 #endif
1612
1613 /**
1614 * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
1615 */
1616 static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
1617 struct iwl_tx_queue *txq,
1618 u16 byte_cnt)
1619 {
1620 struct iwl4965_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
1621 int txq_id = txq->q.id;
1622 int write_ptr = txq->q.write_ptr;
1623 int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
1624 __le16 bc_ent;
1625
1626 WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
1627
1628 bc_ent = cpu_to_le16(len & 0xFFF);
1629 /* Set up byte count within first 256 entries */
1630 scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
1631
1632 /* If within first 64 entries, duplicate at end */
1633 if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
1634 scd_bc_tbl[txq_id].
1635 tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
1636 }
1637
1638 /**
1639 * sign_extend - Sign extend a value using specified bit as sign-bit
1640 *
1641 * Example: sign_extend(9, 3) would return -7 as bit3 of 1001b is 1
1642 * and bit0..2 is 001b which when sign extended to 1111111111111001b is -7.
1643 *
1644 * @param oper value to sign extend
1645 * @param index 0 based bit index (0<=index<32) to sign bit
1646 */
1647 static s32 sign_extend(u32 oper, int index)
1648 {
1649 u8 shift = 31 - index;
1650
1651 return (s32)(oper << shift) >> shift;
1652 }
1653
1654 /**
1655 * iwl4965_hw_get_temperature - return the calibrated temperature (in Kelvin)
1656 * @statistics: Provides the temperature reading from the uCode
1657 *
1658 * A return of <0 indicates bogus data in the statistics
1659 */
1660 static int iwl4965_hw_get_temperature(struct iwl_priv *priv)
1661 {
1662 s32 temperature;
1663 s32 vt;
1664 s32 R1, R2, R3;
1665 u32 R4;
1666
1667 if (test_bit(STATUS_TEMPERATURE, &priv->status) &&
1668 (priv->statistics.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)) {
1669 IWL_DEBUG_TEMP(priv, "Running HT40 temperature calibration\n");
1670 R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]);
1671 R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]);
1672 R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]);
1673 R4 = le32_to_cpu(priv->card_alive_init.therm_r4[1]);
1674 } else {
1675 IWL_DEBUG_TEMP(priv, "Running temperature calibration\n");
1676 R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]);
1677 R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]);
1678 R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]);
1679 R4 = le32_to_cpu(priv->card_alive_init.therm_r4[0]);
1680 }
1681
1682 /*
1683 * Temperature is only 23 bits, so sign extend out to 32.
1684 *
1685 * NOTE If we haven't received a statistics notification yet
1686 * with an updated temperature, use R4 provided to us in the
1687 * "initialize" ALIVE response.
1688 */
1689 if (!test_bit(STATUS_TEMPERATURE, &priv->status))
1690 vt = sign_extend(R4, 23);
1691 else
1692 vt = sign_extend(
1693 le32_to_cpu(priv->statistics.general.temperature), 23);
1694
1695 IWL_DEBUG_TEMP(priv, "Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt);
1696
1697 if (R3 == R1) {
1698 IWL_ERR(priv, "Calibration conflict R1 == R3\n");
1699 return -1;
1700 }
1701
1702 /* Calculate temperature in degrees Kelvin, adjust by 97%.
1703 * Add offset to center the adjustment around 0 degrees Centigrade. */
1704 temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2);
1705 temperature /= (R3 - R1);
1706 temperature = (temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET;
1707
1708 IWL_DEBUG_TEMP(priv, "Calibrated temperature: %dK, %dC\n",
1709 temperature, KELVIN_TO_CELSIUS(temperature));
1710
1711 return temperature;
1712 }
1713
1714 /* Adjust Txpower only if temperature variance is greater than threshold. */
1715 #define IWL_TEMPERATURE_THRESHOLD 3
1716
1717 /**
1718 * iwl4965_is_temp_calib_needed - determines if new calibration is needed
1719 *
1720 * If the temperature changed has changed sufficiently, then a recalibration
1721 * is needed.
1722 *
1723 * Assumes caller will replace priv->last_temperature once calibration
1724 * executed.
1725 */
1726 static int iwl4965_is_temp_calib_needed(struct iwl_priv *priv)
1727 {
1728 int temp_diff;
1729
1730 if (!test_bit(STATUS_STATISTICS, &priv->status)) {
1731 IWL_DEBUG_TEMP(priv, "Temperature not updated -- no statistics.\n");
1732 return 0;
1733 }
1734
1735 temp_diff = priv->temperature - priv->last_temperature;
1736
1737 /* get absolute value */
1738 if (temp_diff < 0) {
1739 IWL_DEBUG_POWER(priv, "Getting cooler, delta %d, \n", temp_diff);
1740 temp_diff = -temp_diff;
1741 } else if (temp_diff == 0)
1742 IWL_DEBUG_POWER(priv, "Same temp, \n");
1743 else
1744 IWL_DEBUG_POWER(priv, "Getting warmer, delta %d, \n", temp_diff);
1745
1746 if (temp_diff < IWL_TEMPERATURE_THRESHOLD) {
1747 IWL_DEBUG_POWER(priv, "Thermal txpower calib not needed\n");
1748 return 0;
1749 }
1750
1751 IWL_DEBUG_POWER(priv, "Thermal txpower calib needed\n");
1752
1753 return 1;
1754 }
1755
1756 static void iwl4965_temperature_calib(struct iwl_priv *priv)
1757 {
1758 s32 temp;
1759
1760 temp = iwl4965_hw_get_temperature(priv);
1761 if (temp < 0)
1762 return;
1763
1764 if (priv->temperature != temp) {
1765 if (priv->temperature)
1766 IWL_DEBUG_TEMP(priv, "Temperature changed "
1767 "from %dC to %dC\n",
1768 KELVIN_TO_CELSIUS(priv->temperature),
1769 KELVIN_TO_CELSIUS(temp));
1770 else
1771 IWL_DEBUG_TEMP(priv, "Temperature "
1772 "initialized to %dC\n",
1773 KELVIN_TO_CELSIUS(temp));
1774 }
1775
1776 priv->temperature = temp;
1777 iwl_tt_handler(priv);
1778 set_bit(STATUS_TEMPERATURE, &priv->status);
1779
1780 if (!priv->disable_tx_power_cal &&
1781 unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
1782 iwl4965_is_temp_calib_needed(priv))
1783 queue_work(priv->workqueue, &priv->txpower_work);
1784 }
1785
1786 /**
1787 * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
1788 */
1789 static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv,
1790 u16 txq_id)
1791 {
1792 /* Simply stop the queue, but don't change any configuration;
1793 * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
1794 iwl_write_prph(priv,
1795 IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
1796 (0 << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
1797 (1 << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
1798 }
1799
1800 /**
1801 * txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE
1802 * priv->lock must be held by the caller
1803 */
1804 static int iwl4965_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
1805 u16 ssn_idx, u8 tx_fifo)
1806 {
1807 if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
1808 (IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES <= txq_id)) {
1809 IWL_WARN(priv,
1810 "queue number out of range: %d, must be %d to %d\n",
1811 txq_id, IWL49_FIRST_AMPDU_QUEUE,
1812 IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES - 1);
1813 return -EINVAL;
1814 }
1815
1816 iwl4965_tx_queue_stop_scheduler(priv, txq_id);
1817
1818 iwl_clear_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
1819
1820 priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
1821 priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
1822 /* supposes that ssn_idx is valid (!= 0xFFF) */
1823 iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
1824
1825 iwl_clear_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id));
1826 iwl_txq_ctx_deactivate(priv, txq_id);
1827 iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
1828
1829 return 0;
1830 }
1831
1832 /**
1833 * iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue
1834 */
1835 static int iwl4965_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
1836 u16 txq_id)
1837 {
1838 u32 tbl_dw_addr;
1839 u32 tbl_dw;
1840 u16 scd_q2ratid;
1841
1842 scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
1843
1844 tbl_dw_addr = priv->scd_base_addr +
1845 IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
1846
1847 tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr);
1848
1849 if (txq_id & 0x1)
1850 tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
1851 else
1852 tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
1853
1854 iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw);
1855
1856 return 0;
1857 }
1858
1859
1860 /**
1861 * iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
1862 *
1863 * NOTE: txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE,
1864 * i.e. it must be one of the higher queues used for aggregation
1865 */
1866 static int iwl4965_txq_agg_enable(struct iwl_priv *priv, int txq_id,
1867 int tx_fifo, int sta_id, int tid, u16 ssn_idx)
1868 {
1869 unsigned long flags;
1870 u16 ra_tid;
1871
1872 if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
1873 (IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES <= txq_id)) {
1874 IWL_WARN(priv,
1875 "queue number out of range: %d, must be %d to %d\n",
1876 txq_id, IWL49_FIRST_AMPDU_QUEUE,
1877 IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES - 1);
1878 return -EINVAL;
1879 }
1880
1881 ra_tid = BUILD_RAxTID(sta_id, tid);
1882
1883 /* Modify device's station table to Tx this TID */
1884 iwl_sta_tx_modify_enable_tid(priv, sta_id, tid);
1885
1886 spin_lock_irqsave(&priv->lock, flags);
1887
1888 /* Stop this Tx queue before configuring it */
1889 iwl4965_tx_queue_stop_scheduler(priv, txq_id);
1890
1891 /* Map receiver-address / traffic-ID to this queue */
1892 iwl4965_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
1893
1894 /* Set this queue as a chain-building queue */
1895 iwl_set_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
1896
1897 /* Place first TFD at index corresponding to start sequence number.
1898 * Assumes that ssn_idx is valid (!= 0xFFF) */
1899 priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
1900 priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
1901 iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
1902
1903 /* Set up Tx window size and frame limit for this queue */
1904 iwl_write_targ_mem(priv,
1905 priv->scd_base_addr + IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id),
1906 (SCD_WIN_SIZE << IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
1907 IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
1908
1909 iwl_write_targ_mem(priv, priv->scd_base_addr +
1910 IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32),
1911 (SCD_FRAME_LIMIT << IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS)
1912 & IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
1913
1914 iwl_set_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id));
1915
1916 /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
1917 iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
1918
1919 spin_unlock_irqrestore(&priv->lock, flags);
1920
1921 return 0;
1922 }
1923
1924
1925 static u16 iwl4965_get_hcmd_size(u8 cmd_id, u16 len)
1926 {
1927 switch (cmd_id) {
1928 case REPLY_RXON:
1929 return (u16) sizeof(struct iwl4965_rxon_cmd);
1930 default:
1931 return len;
1932 }
1933 }
1934
1935 static u16 iwl4965_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
1936 {
1937 struct iwl4965_addsta_cmd *addsta = (struct iwl4965_addsta_cmd *)data;
1938 addsta->mode = cmd->mode;
1939 memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
1940 memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
1941 addsta->station_flags = cmd->station_flags;
1942 addsta->station_flags_msk = cmd->station_flags_msk;
1943 addsta->tid_disable_tx = cmd->tid_disable_tx;
1944 addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
1945 addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
1946 addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
1947 addsta->reserved1 = cpu_to_le16(0);
1948 addsta->reserved2 = cpu_to_le32(0);
1949
1950 return (u16)sizeof(struct iwl4965_addsta_cmd);
1951 }
1952
1953 static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
1954 {
1955 return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
1956 }
1957
1958 /**
1959 * iwl4965_tx_status_reply_tx - Handle Tx response for frames in aggregation queue
1960 */
1961 static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
1962 struct iwl_ht_agg *agg,
1963 struct iwl4965_tx_resp *tx_resp,
1964 int txq_id, u16 start_idx)
1965 {
1966 u16 status;
1967 struct agg_tx_status *frame_status = tx_resp->u.agg_status;
1968 struct ieee80211_tx_info *info = NULL;
1969 struct ieee80211_hdr *hdr = NULL;
1970 u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1971 int i, sh, idx;
1972 u16 seq;
1973 if (agg->wait_for_ba)
1974 IWL_DEBUG_TX_REPLY(priv, "got tx response w/o block-ack\n");
1975
1976 agg->frame_count = tx_resp->frame_count;
1977 agg->start_idx = start_idx;
1978 agg->rate_n_flags = rate_n_flags;
1979 agg->bitmap = 0;
1980
1981 /* num frames attempted by Tx command */
1982 if (agg->frame_count == 1) {
1983 /* Only one frame was attempted; no block-ack will arrive */
1984 status = le16_to_cpu(frame_status[0].status);
1985 idx = start_idx;
1986
1987 /* FIXME: code repetition */
1988 IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, StartIdx=%d idx=%d\n",
1989 agg->frame_count, agg->start_idx, idx);
1990
1991 info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
1992 info->status.rates[0].count = tx_resp->failure_frame + 1;
1993 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1994 info->flags |= iwl_is_tx_success(status) ?
1995 IEEE80211_TX_STAT_ACK : 0;
1996 iwl_hwrate_to_tx_control(priv, rate_n_flags, info);
1997 /* FIXME: code repetition end */
1998
1999 IWL_DEBUG_TX_REPLY(priv, "1 Frame 0x%x failure :%d\n",
2000 status & 0xff, tx_resp->failure_frame);
2001 IWL_DEBUG_TX_REPLY(priv, "Rate Info rate_n_flags=%x\n", rate_n_flags);
2002
2003 agg->wait_for_ba = 0;
2004 } else {
2005 /* Two or more frames were attempted; expect block-ack */
2006 u64 bitmap = 0;
2007 int start = agg->start_idx;
2008
2009 /* Construct bit-map of pending frames within Tx window */
2010 for (i = 0; i < agg->frame_count; i++) {
2011 u16 sc;
2012 status = le16_to_cpu(frame_status[i].status);
2013 seq = le16_to_cpu(frame_status[i].sequence);
2014 idx = SEQ_TO_INDEX(seq);
2015 txq_id = SEQ_TO_QUEUE(seq);
2016
2017 if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
2018 AGG_TX_STATE_ABORT_MSK))
2019 continue;
2020
2021 IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, txq_id=%d idx=%d\n",
2022 agg->frame_count, txq_id, idx);
2023
2024 hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx);
2025 if (!hdr) {
2026 IWL_ERR(priv,
2027 "BUG_ON idx doesn't point to valid skb"
2028 " idx=%d, txq_id=%d\n", idx, txq_id);
2029 return -1;
2030 }
2031
2032 sc = le16_to_cpu(hdr->seq_ctrl);
2033 if (idx != (SEQ_TO_SN(sc) & 0xff)) {
2034 IWL_ERR(priv,
2035 "BUG_ON idx doesn't match seq control"
2036 " idx=%d, seq_idx=%d, seq=%d\n",
2037 idx, SEQ_TO_SN(sc), hdr->seq_ctrl);
2038 return -1;
2039 }
2040
2041 IWL_DEBUG_TX_REPLY(priv, "AGG Frame i=%d idx %d seq=%d\n",
2042 i, idx, SEQ_TO_SN(sc));
2043
2044 sh = idx - start;
2045 if (sh > 64) {
2046 sh = (start - idx) + 0xff;
2047 bitmap = bitmap << sh;
2048 sh = 0;
2049 start = idx;
2050 } else if (sh < -64)
2051 sh = 0xff - (start - idx);
2052 else if (sh < 0) {
2053 sh = start - idx;
2054 start = idx;
2055 bitmap = bitmap << sh;
2056 sh = 0;
2057 }
2058 bitmap |= 1ULL << sh;
2059 IWL_DEBUG_TX_REPLY(priv, "start=%d bitmap=0x%llx\n",
2060 start, (unsigned long long)bitmap);
2061 }
2062
2063 agg->bitmap = bitmap;
2064 agg->start_idx = start;
2065 IWL_DEBUG_TX_REPLY(priv, "Frames %d start_idx=%d bitmap=0x%llx\n",
2066 agg->frame_count, agg->start_idx,
2067 (unsigned long long)agg->bitmap);
2068
2069 if (bitmap)
2070 agg->wait_for_ba = 1;
2071 }
2072 return 0;
2073 }
2074
2075 /**
2076 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
2077 */
2078 static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
2079 struct iwl_rx_mem_buffer *rxb)
2080 {
2081 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
2082 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
2083 int txq_id = SEQ_TO_QUEUE(sequence);
2084 int index = SEQ_TO_INDEX(sequence);
2085 struct iwl_tx_queue *txq = &priv->txq[txq_id];
2086 struct ieee80211_hdr *hdr;
2087 struct ieee80211_tx_info *info;
2088 struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
2089 u32 status = le32_to_cpu(tx_resp->u.status);
2090 int tid = MAX_TID_COUNT - 1;
2091 int sta_id;
2092 int freed;
2093 u8 *qc = NULL;
2094
2095 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
2096 IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
2097 "is out of range [0-%d] %d %d\n", txq_id,
2098 index, txq->q.n_bd, txq->q.write_ptr,
2099 txq->q.read_ptr);
2100 return;
2101 }
2102
2103 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
2104 memset(&info->status, 0, sizeof(info->status));
2105
2106 hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
2107 if (ieee80211_is_data_qos(hdr->frame_control)) {
2108 qc = ieee80211_get_qos_ctl(hdr);
2109 tid = qc[0] & 0xf;
2110 }
2111
2112 sta_id = iwl_get_ra_sta_id(priv, hdr);
2113 if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
2114 IWL_ERR(priv, "Station not known\n");
2115 return;
2116 }
2117
2118 if (txq->sched_retry) {
2119 const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
2120 struct iwl_ht_agg *agg = NULL;
2121
2122 WARN_ON(!qc);
2123
2124 agg = &priv->stations[sta_id].tid[tid].agg;
2125
2126 iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
2127
2128 /* check if BAR is needed */
2129 if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status))
2130 info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
2131
2132 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
2133 index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
2134 IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
2135 "%d index %d\n", scd_ssn , index);
2136 freed = iwl_tx_queue_reclaim(priv, txq_id, index);
2137 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
2138
2139 if (priv->mac80211_registered &&
2140 (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
2141 (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
2142 if (agg->state == IWL_AGG_OFF)
2143 iwl_wake_queue(priv, txq_id);
2144 else
2145 iwl_wake_queue(priv, txq->swq_id);
2146 }
2147 }
2148 } else {
2149 info->status.rates[0].count = tx_resp->failure_frame + 1;
2150 info->flags |= iwl_is_tx_success(status) ?
2151 IEEE80211_TX_STAT_ACK : 0;
2152 iwl_hwrate_to_tx_control(priv,
2153 le32_to_cpu(tx_resp->rate_n_flags),
2154 info);
2155
2156 IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) "
2157 "rate_n_flags 0x%x retries %d\n",
2158 txq_id,
2159 iwl_get_tx_fail_reason(status), status,
2160 le32_to_cpu(tx_resp->rate_n_flags),
2161 tx_resp->failure_frame);
2162
2163 freed = iwl_tx_queue_reclaim(priv, txq_id, index);
2164 if (qc && likely(sta_id != IWL_INVALID_STATION))
2165 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
2166
2167 if (priv->mac80211_registered &&
2168 (iwl_queue_space(&txq->q) > txq->q.low_mark))
2169 iwl_wake_queue(priv, txq_id);
2170 }
2171
2172 if (qc && likely(sta_id != IWL_INVALID_STATION))
2173 iwl_txq_check_empty(priv, sta_id, tid, txq_id);
2174
2175 if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
2176 IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
2177 }
2178
2179 static int iwl4965_calc_rssi(struct iwl_priv *priv,
2180 struct iwl_rx_phy_res *rx_resp)
2181 {
2182 /* data from PHY/DSP regarding signal strength, etc.,
2183 * contents are always there, not configurable by host. */
2184 struct iwl4965_rx_non_cfg_phy *ncphy =
2185 (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf;
2186 u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL49_AGC_DB_MASK)
2187 >> IWL49_AGC_DB_POS;
2188
2189 u32 valid_antennae =
2190 (le16_to_cpu(rx_resp->phy_flags) & IWL49_RX_PHY_FLAGS_ANTENNAE_MASK)
2191 >> IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET;
2192 u8 max_rssi = 0;
2193 u32 i;
2194
2195 /* Find max rssi among 3 possible receivers.
2196 * These values are measured by the digital signal processor (DSP).
2197 * They should stay fairly constant even as the signal strength varies,
2198 * if the radio's automatic gain control (AGC) is working right.
2199 * AGC value (see below) will provide the "interesting" info. */
2200 for (i = 0; i < 3; i++)
2201 if (valid_antennae & (1 << i))
2202 max_rssi = max(ncphy->rssi_info[i << 1], max_rssi);
2203
2204 IWL_DEBUG_STATS(priv, "Rssi In A %d B %d C %d Max %d AGC dB %d\n",
2205 ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4],
2206 max_rssi, agc);
2207
2208 /* dBm = max_rssi dB - agc dB - constant.
2209 * Higher AGC (higher radio gain) means lower signal. */
2210 return max_rssi - agc - IWL49_RSSI_OFFSET;
2211 }
2212
2213
2214 /* Set up 4965-specific Rx frame reply handlers */
2215 static void iwl4965_rx_handler_setup(struct iwl_priv *priv)
2216 {
2217 /* Legacy Rx frames */
2218 priv->rx_handlers[REPLY_RX] = iwl_rx_reply_rx;
2219 /* Tx response */
2220 priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
2221 }
2222
2223 static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
2224 {
2225 INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work);
2226 }
2227
2228 static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
2229 {
2230 cancel_work_sync(&priv->txpower_work);
2231 }
2232
2233 #define IWL4965_UCODE_GET(item) \
2234 static u32 iwl4965_ucode_get_##item(const struct iwl_ucode_header *ucode,\
2235 u32 api_ver) \
2236 { \
2237 return le32_to_cpu(ucode->u.v1.item); \
2238 }
2239
2240 static u32 iwl4965_ucode_get_header_size(u32 api_ver)
2241 {
2242 return UCODE_HEADER_SIZE(1);
2243 }
2244 static u32 iwl4965_ucode_get_build(const struct iwl_ucode_header *ucode,
2245 u32 api_ver)
2246 {
2247 return 0;
2248 }
2249 static u8 *iwl4965_ucode_get_data(const struct iwl_ucode_header *ucode,
2250 u32 api_ver)
2251 {
2252 return (u8 *) ucode->u.v1.data;
2253 }
2254
2255 IWL4965_UCODE_GET(inst_size);
2256 IWL4965_UCODE_GET(data_size);
2257 IWL4965_UCODE_GET(init_size);
2258 IWL4965_UCODE_GET(init_data_size);
2259 IWL4965_UCODE_GET(boot_size);
2260
2261 static struct iwl_hcmd_ops iwl4965_hcmd = {
2262 .rxon_assoc = iwl4965_send_rxon_assoc,
2263 .commit_rxon = iwl_commit_rxon,
2264 .set_rxon_chain = iwl_set_rxon_chain,
2265 };
2266
2267 static struct iwl_ucode_ops iwl4965_ucode = {
2268 .get_header_size = iwl4965_ucode_get_header_size,
2269 .get_build = iwl4965_ucode_get_build,
2270 .get_inst_size = iwl4965_ucode_get_inst_size,
2271 .get_data_size = iwl4965_ucode_get_data_size,
2272 .get_init_size = iwl4965_ucode_get_init_size,
2273 .get_init_data_size = iwl4965_ucode_get_init_data_size,
2274 .get_boot_size = iwl4965_ucode_get_boot_size,
2275 .get_data = iwl4965_ucode_get_data,
2276 };
2277 static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
2278 .get_hcmd_size = iwl4965_get_hcmd_size,
2279 .build_addsta_hcmd = iwl4965_build_addsta_hcmd,
2280 .chain_noise_reset = iwl4965_chain_noise_reset,
2281 .gain_computation = iwl4965_gain_computation,
2282 .rts_tx_cmd_flag = iwl4965_rts_tx_cmd_flag,
2283 .calc_rssi = iwl4965_calc_rssi,
2284 };
2285
2286 static struct iwl_lib_ops iwl4965_lib = {
2287 .set_hw_params = iwl4965_hw_set_hw_params,
2288 .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl,
2289 .txq_set_sched = iwl4965_txq_set_sched,
2290 .txq_agg_enable = iwl4965_txq_agg_enable,
2291 .txq_agg_disable = iwl4965_txq_agg_disable,
2292 .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
2293 .txq_free_tfd = iwl_hw_txq_free_tfd,
2294 .txq_init = iwl_hw_tx_queue_init,
2295 .rx_handler_setup = iwl4965_rx_handler_setup,
2296 .setup_deferred_work = iwl4965_setup_deferred_work,
2297 .cancel_deferred_work = iwl4965_cancel_deferred_work,
2298 .is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr,
2299 .alive_notify = iwl4965_alive_notify,
2300 .init_alive_start = iwl4965_init_alive_start,
2301 .load_ucode = iwl4965_load_bsm,
2302 .dump_nic_event_log = iwl_dump_nic_event_log,
2303 .dump_nic_error_log = iwl_dump_nic_error_log,
2304 .apm_ops = {
2305 .init = iwl4965_apm_init,
2306 .reset = iwl4965_apm_reset,
2307 .stop = iwl4965_apm_stop,
2308 .config = iwl4965_nic_config,
2309 .set_pwr_src = iwl_set_pwr_src,
2310 },
2311 .eeprom_ops = {
2312 .regulatory_bands = {
2313 EEPROM_REGULATORY_BAND_1_CHANNELS,
2314 EEPROM_REGULATORY_BAND_2_CHANNELS,
2315 EEPROM_REGULATORY_BAND_3_CHANNELS,
2316 EEPROM_REGULATORY_BAND_4_CHANNELS,
2317 EEPROM_REGULATORY_BAND_5_CHANNELS,
2318 EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS,
2319 EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS
2320 },
2321 .verify_signature = iwlcore_eeprom_verify_signature,
2322 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
2323 .release_semaphore = iwlcore_eeprom_release_semaphore,
2324 .calib_version = iwl4965_eeprom_calib_version,
2325 .query_addr = iwlcore_eeprom_query_addr,
2326 },
2327 .send_tx_power = iwl4965_send_tx_power,
2328 .update_chain_flags = iwl_update_chain_flags,
2329 .post_associate = iwl_post_associate,
2330 .config_ap = iwl_config_ap,
2331 .isr = iwl_isr_legacy,
2332 .temp_ops = {
2333 .temperature = iwl4965_temperature_calib,
2334 .set_ct_kill = iwl4965_set_ct_threshold,
2335 },
2336 };
2337
2338 static struct iwl_ops iwl4965_ops = {
2339 .ucode = &iwl4965_ucode,
2340 .lib = &iwl4965_lib,
2341 .hcmd = &iwl4965_hcmd,
2342 .utils = &iwl4965_hcmd_utils,
2343 };
2344
2345 struct iwl_cfg iwl4965_agn_cfg = {
2346 .name = "4965AGN",
2347 .fw_name_pre = IWL4965_FW_PRE,
2348 .ucode_api_max = IWL4965_UCODE_API_MAX,
2349 .ucode_api_min = IWL4965_UCODE_API_MIN,
2350 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
2351 .eeprom_size = IWL4965_EEPROM_IMG_SIZE,
2352 .eeprom_ver = EEPROM_4965_EEPROM_VERSION,
2353 .eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION,
2354 .ops = &iwl4965_ops,
2355 .mod_params = &iwl4965_mod_params,
2356 .use_isr_legacy = true,
2357 .ht_greenfield_support = false,
2358 .broken_powersave = true,
2359 };
2360
2361 /* Module firmware */
2362 MODULE_FIRMWARE(IWL4965_MODULE_FIRMWARE(IWL4965_UCODE_API_MAX));
2363
2364 module_param_named(antenna, iwl4965_mod_params.antenna, int, 0444);
2365 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
2366 module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, 0444);
2367 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
2368 module_param_named(
2369 disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, 0444);
2370 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
2371
2372 module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, 0444);
2373 MODULE_PARM_DESC(queues_num, "number of hw queues.");
2374 /* 11n */
2375 module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, 0444);
2376 MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
2377 module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, int, 0444);
2378 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
2379
2380 module_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, 0444);
2381 MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree