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iwlwifi: map sw and hw ampdu queues
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-5000.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2007-2008 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 Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
23 *
24 *****************************************************************************/
25
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/version.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/skbuff.h>
34 #include <linux/netdevice.h>
35 #include <linux/wireless.h>
36 #include <net/mac80211.h>
37 #include <linux/etherdevice.h>
38 #include <asm/unaligned.h>
39
40 #include "iwl-eeprom.h"
41 #include "iwl-dev.h"
42 #include "iwl-core.h"
43 #include "iwl-io.h"
44 #include "iwl-helpers.h"
45 #include "iwl-5000-hw.h"
46
47 #define IWL5000_UCODE_API "-1"
48
49 static const u16 iwl5000_default_queue_to_tx_fifo[] = {
50 IWL_TX_FIFO_AC3,
51 IWL_TX_FIFO_AC2,
52 IWL_TX_FIFO_AC1,
53 IWL_TX_FIFO_AC0,
54 IWL50_CMD_FIFO_NUM,
55 IWL_TX_FIFO_HCCA_1,
56 IWL_TX_FIFO_HCCA_2
57 };
58
59 /* FIXME: same implementation as 4965 */
60 static int iwl5000_apm_stop_master(struct iwl_priv *priv)
61 {
62 int ret = 0;
63 unsigned long flags;
64
65 spin_lock_irqsave(&priv->lock, flags);
66
67 /* set stop master bit */
68 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
69
70 ret = iwl_poll_bit(priv, CSR_RESET,
71 CSR_RESET_REG_FLAG_MASTER_DISABLED,
72 CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
73 if (ret < 0)
74 goto out;
75
76 out:
77 spin_unlock_irqrestore(&priv->lock, flags);
78 IWL_DEBUG_INFO("stop master\n");
79
80 return ret;
81 }
82
83
84 static int iwl5000_apm_init(struct iwl_priv *priv)
85 {
86 int ret = 0;
87
88 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
89 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
90
91 /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
92 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
93 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
94
95 iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
96
97 /* set "initialization complete" bit to move adapter
98 * D0U* --> D0A* state */
99 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
100
101 /* wait for clock stabilization */
102 ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
103 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
104 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
105 if (ret < 0) {
106 IWL_DEBUG_INFO("Failed to init the card\n");
107 return ret;
108 }
109
110 ret = iwl_grab_nic_access(priv);
111 if (ret)
112 return ret;
113
114 /* enable DMA */
115 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
116
117 udelay(20);
118
119 /* disable L1-Active */
120 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
121 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
122
123 iwl_release_nic_access(priv);
124
125 return ret;
126 }
127
128 /* FIXME: this is indentical to 4965 */
129 static void iwl5000_apm_stop(struct iwl_priv *priv)
130 {
131 unsigned long flags;
132
133 iwl5000_apm_stop_master(priv);
134
135 spin_lock_irqsave(&priv->lock, flags);
136
137 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
138
139 udelay(10);
140
141 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
142
143 spin_unlock_irqrestore(&priv->lock, flags);
144 }
145
146
147 static int iwl5000_apm_reset(struct iwl_priv *priv)
148 {
149 int ret = 0;
150 unsigned long flags;
151
152 iwl5000_apm_stop_master(priv);
153
154 spin_lock_irqsave(&priv->lock, flags);
155
156 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
157
158 udelay(10);
159
160
161 /* FIXME: put here L1A -L0S w/a */
162
163 iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
164
165 /* set "initialization complete" bit to move adapter
166 * D0U* --> D0A* state */
167 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
168
169 /* wait for clock stabilization */
170 ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
171 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
172 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
173 if (ret < 0) {
174 IWL_DEBUG_INFO("Failed to init the card\n");
175 goto out;
176 }
177
178 ret = iwl_grab_nic_access(priv);
179 if (ret)
180 goto out;
181
182 /* enable DMA */
183 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
184
185 udelay(20);
186
187 /* disable L1-Active */
188 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
189 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
190
191 iwl_release_nic_access(priv);
192
193 out:
194 spin_unlock_irqrestore(&priv->lock, flags);
195
196 return ret;
197 }
198
199
200 static void iwl5000_nic_config(struct iwl_priv *priv)
201 {
202 unsigned long flags;
203 u16 radio_cfg;
204 u8 val_link;
205
206 spin_lock_irqsave(&priv->lock, flags);
207
208 pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
209
210 /* L1 is enabled by BIOS */
211 if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN)
212 /* diable L0S disabled L1A enabled */
213 iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
214 else
215 /* L0S enabled L1A disabled */
216 iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
217
218 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
219
220 /* write radio config values to register */
221 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) < EEPROM_5000_RF_CFG_TYPE_MAX)
222 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
223 EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
224 EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
225 EEPROM_RF_CFG_DASH_MSK(radio_cfg));
226
227 /* set CSR_HW_CONFIG_REG for uCode use */
228 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
229 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
230 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
231
232 spin_unlock_irqrestore(&priv->lock, flags);
233 }
234
235
236
237 /*
238 * EEPROM
239 */
240 static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address)
241 {
242 u16 offset = 0;
243
244 if ((address & INDIRECT_ADDRESS) == 0)
245 return address;
246
247 switch (address & INDIRECT_TYPE_MSK) {
248 case INDIRECT_HOST:
249 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST);
250 break;
251 case INDIRECT_GENERAL:
252 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL);
253 break;
254 case INDIRECT_REGULATORY:
255 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY);
256 break;
257 case INDIRECT_CALIBRATION:
258 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION);
259 break;
260 case INDIRECT_PROCESS_ADJST:
261 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST);
262 break;
263 case INDIRECT_OTHERS:
264 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS);
265 break;
266 default:
267 IWL_ERROR("illegal indirect type: 0x%X\n",
268 address & INDIRECT_TYPE_MSK);
269 break;
270 }
271
272 /* translate the offset from words to byte */
273 return (address & ADDRESS_MSK) + (offset << 1);
274 }
275
276 static int iwl5000_eeprom_check_version(struct iwl_priv *priv)
277 {
278 u16 eeprom_ver;
279 struct iwl_eeprom_calib_hdr {
280 u8 version;
281 u8 pa_type;
282 u16 voltage;
283 } *hdr;
284
285 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
286
287 hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
288 EEPROM_5000_CALIB_ALL);
289
290 if (eeprom_ver < EEPROM_5000_EEPROM_VERSION ||
291 hdr->version < EEPROM_5000_TX_POWER_VERSION)
292 goto err;
293
294 return 0;
295 err:
296 IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
297 eeprom_ver, EEPROM_5000_EEPROM_VERSION,
298 hdr->version, EEPROM_5000_TX_POWER_VERSION);
299 return -EINVAL;
300
301 }
302
303 static void iwl5000_gain_computation(struct iwl_priv *priv,
304 u32 average_noise[NUM_RX_CHAINS],
305 u16 min_average_noise_antenna_i,
306 u32 min_average_noise)
307 {
308 int i;
309 s32 delta_g;
310 struct iwl_chain_noise_data *data = &priv->chain_noise_data;
311
312 /* Find Gain Code for the antennas B and C */
313 for (i = 1; i < NUM_RX_CHAINS; i++) {
314 if ((data->disconn_array[i])) {
315 data->delta_gain_code[i] = 0;
316 continue;
317 }
318 delta_g = (1000 * ((s32)average_noise[0] -
319 (s32)average_noise[i])) / 1500;
320 /* bound gain by 2 bits value max, 3rd bit is sign */
321 data->delta_gain_code[i] =
322 min(abs(delta_g), CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
323
324 if (delta_g < 0)
325 /* set negative sign */
326 data->delta_gain_code[i] |= (1 << 2);
327 }
328
329 IWL_DEBUG_CALIB("Delta gains: ANT_B = %d ANT_C = %d\n",
330 data->delta_gain_code[1], data->delta_gain_code[2]);
331
332 if (!data->radio_write) {
333 struct iwl5000_calibration_chain_noise_gain_cmd cmd;
334 memset(&cmd, 0, sizeof(cmd));
335
336 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD;
337 cmd.delta_gain_1 = data->delta_gain_code[1];
338 cmd.delta_gain_2 = data->delta_gain_code[2];
339 iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD,
340 sizeof(cmd), &cmd, NULL);
341
342 data->radio_write = 1;
343 data->state = IWL_CHAIN_NOISE_CALIBRATED;
344 }
345
346 data->chain_noise_a = 0;
347 data->chain_noise_b = 0;
348 data->chain_noise_c = 0;
349 data->chain_signal_a = 0;
350 data->chain_signal_b = 0;
351 data->chain_signal_c = 0;
352 data->beacon_count = 0;
353 }
354
355 static void iwl5000_chain_noise_reset(struct iwl_priv *priv)
356 {
357 struct iwl_chain_noise_data *data = &priv->chain_noise_data;
358
359 if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
360 struct iwl5000_calibration_chain_noise_reset_cmd cmd;
361
362 memset(&cmd, 0, sizeof(cmd));
363 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD;
364 if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
365 sizeof(cmd), &cmd))
366 IWL_ERROR("Could not send REPLY_PHY_CALIBRATION_CMD\n");
367 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
368 IWL_DEBUG_CALIB("Run chain_noise_calibrate\n");
369 }
370 }
371
372 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
373 .min_nrg_cck = 95,
374 .max_nrg_cck = 0,
375 .auto_corr_min_ofdm = 90,
376 .auto_corr_min_ofdm_mrc = 170,
377 .auto_corr_min_ofdm_x1 = 120,
378 .auto_corr_min_ofdm_mrc_x1 = 240,
379
380 .auto_corr_max_ofdm = 120,
381 .auto_corr_max_ofdm_mrc = 210,
382 .auto_corr_max_ofdm_x1 = 155,
383 .auto_corr_max_ofdm_mrc_x1 = 290,
384
385 .auto_corr_min_cck = 125,
386 .auto_corr_max_cck = 200,
387 .auto_corr_min_cck_mrc = 170,
388 .auto_corr_max_cck_mrc = 400,
389 .nrg_th_cck = 95,
390 .nrg_th_ofdm = 95,
391 };
392
393 static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
394 size_t offset)
395 {
396 u32 address = eeprom_indirect_address(priv, offset);
397 BUG_ON(address >= priv->cfg->eeprom_size);
398 return &priv->eeprom[address];
399 }
400
401 /*
402 * Calibration
403 */
404 static int iwl5000_send_Xtal_calib(struct iwl_priv *priv)
405 {
406 u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL);
407
408 struct iwl5000_calibration cal_cmd = {
409 .op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD,
410 .data = {
411 (u8)xtal_calib[0],
412 (u8)xtal_calib[1],
413 }
414 };
415
416 return iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
417 sizeof(cal_cmd), &cal_cmd);
418 }
419
420 static int iwl5000_send_calib_results(struct iwl_priv *priv)
421 {
422 int ret = 0;
423
424 struct iwl_host_cmd hcmd = {
425 .id = REPLY_PHY_CALIBRATION_CMD,
426 .meta.flags = CMD_SIZE_HUGE,
427 };
428
429 if (priv->calib_results.lo_res) {
430 hcmd.len = priv->calib_results.lo_res_len;
431 hcmd.data = priv->calib_results.lo_res;
432 ret = iwl_send_cmd_sync(priv, &hcmd);
433
434 if (ret)
435 goto err;
436 }
437
438 if (priv->calib_results.tx_iq_res) {
439 hcmd.len = priv->calib_results.tx_iq_res_len;
440 hcmd.data = priv->calib_results.tx_iq_res;
441 ret = iwl_send_cmd_sync(priv, &hcmd);
442
443 if (ret)
444 goto err;
445 }
446
447 if (priv->calib_results.tx_iq_perd_res) {
448 hcmd.len = priv->calib_results.tx_iq_perd_res_len;
449 hcmd.data = priv->calib_results.tx_iq_perd_res;
450 ret = iwl_send_cmd_sync(priv, &hcmd);
451
452 if (ret)
453 goto err;
454 }
455
456 return 0;
457 err:
458 IWL_ERROR("Error %d\n", ret);
459 return ret;
460 }
461
462 static int iwl5000_send_calib_cfg(struct iwl_priv *priv)
463 {
464 struct iwl5000_calib_cfg_cmd calib_cfg_cmd;
465 struct iwl_host_cmd cmd = {
466 .id = CALIBRATION_CFG_CMD,
467 .len = sizeof(struct iwl5000_calib_cfg_cmd),
468 .data = &calib_cfg_cmd,
469 };
470
471 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
472 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
473 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
474 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
475 calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL;
476
477 return iwl_send_cmd(priv, &cmd);
478 }
479
480 static void iwl5000_rx_calib_result(struct iwl_priv *priv,
481 struct iwl_rx_mem_buffer *rxb)
482 {
483 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
484 struct iwl5000_calib_hdr *hdr = (struct iwl5000_calib_hdr *)pkt->u.raw;
485 int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK;
486
487 iwl_free_calib_results(priv);
488
489 /* reduce the size of the length field itself */
490 len -= 4;
491
492 switch (hdr->op_code) {
493 case IWL5000_PHY_CALIBRATE_LO_CMD:
494 priv->calib_results.lo_res = kzalloc(len, GFP_ATOMIC);
495 priv->calib_results.lo_res_len = len;
496 memcpy(priv->calib_results.lo_res, pkt->u.raw, len);
497 break;
498 case IWL5000_PHY_CALIBRATE_TX_IQ_CMD:
499 priv->calib_results.tx_iq_res = kzalloc(len, GFP_ATOMIC);
500 priv->calib_results.tx_iq_res_len = len;
501 memcpy(priv->calib_results.tx_iq_res, pkt->u.raw, len);
502 break;
503 case IWL5000_PHY_CALIBRATE_TX_IQ_PERD_CMD:
504 priv->calib_results.tx_iq_perd_res = kzalloc(len, GFP_ATOMIC);
505 priv->calib_results.tx_iq_perd_res_len = len;
506 memcpy(priv->calib_results.tx_iq_perd_res, pkt->u.raw, len);
507 break;
508 default:
509 IWL_ERROR("Unknown calibration notification %d\n",
510 hdr->op_code);
511 return;
512 }
513 }
514
515 static void iwl5000_rx_calib_complete(struct iwl_priv *priv,
516 struct iwl_rx_mem_buffer *rxb)
517 {
518 IWL_DEBUG_INFO("Init. calibration is completed, restarting fw.\n");
519 queue_work(priv->workqueue, &priv->restart);
520 }
521
522 /*
523 * ucode
524 */
525 static int iwl5000_load_section(struct iwl_priv *priv,
526 struct fw_desc *image,
527 u32 dst_addr)
528 {
529 int ret = 0;
530 unsigned long flags;
531
532 dma_addr_t phy_addr = image->p_addr;
533 u32 byte_cnt = image->len;
534
535 spin_lock_irqsave(&priv->lock, flags);
536 ret = iwl_grab_nic_access(priv);
537 if (ret) {
538 spin_unlock_irqrestore(&priv->lock, flags);
539 return ret;
540 }
541
542 iwl_write_direct32(priv,
543 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
544 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
545
546 iwl_write_direct32(priv,
547 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
548
549 iwl_write_direct32(priv,
550 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
551 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
552
553 /* FIME: write the MSB of the phy_addr in CTRL1
554 * iwl_write_direct32(priv,
555 IWL_FH_TFDIB_CTRL1_REG(IWL_FH_SRVC_CHNL),
556 ((phy_addr & MSB_MSK)
557 << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_count);
558 */
559 iwl_write_direct32(priv,
560 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), byte_cnt);
561 iwl_write_direct32(priv,
562 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
563 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
564 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
565 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
566
567 iwl_write_direct32(priv,
568 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
569 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
570 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL |
571 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
572
573 iwl_release_nic_access(priv);
574 spin_unlock_irqrestore(&priv->lock, flags);
575 return 0;
576 }
577
578 static int iwl5000_load_given_ucode(struct iwl_priv *priv,
579 struct fw_desc *inst_image,
580 struct fw_desc *data_image)
581 {
582 int ret = 0;
583
584 ret = iwl5000_load_section(
585 priv, inst_image, RTC_INST_LOWER_BOUND);
586 if (ret)
587 return ret;
588
589 IWL_DEBUG_INFO("INST uCode section being loaded...\n");
590 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
591 priv->ucode_write_complete, 5 * HZ);
592 if (ret == -ERESTARTSYS) {
593 IWL_ERROR("Could not load the INST uCode section due "
594 "to interrupt\n");
595 return ret;
596 }
597 if (!ret) {
598 IWL_ERROR("Could not load the INST uCode section\n");
599 return -ETIMEDOUT;
600 }
601
602 priv->ucode_write_complete = 0;
603
604 ret = iwl5000_load_section(
605 priv, data_image, RTC_DATA_LOWER_BOUND);
606 if (ret)
607 return ret;
608
609 IWL_DEBUG_INFO("DATA uCode section being loaded...\n");
610
611 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
612 priv->ucode_write_complete, 5 * HZ);
613 if (ret == -ERESTARTSYS) {
614 IWL_ERROR("Could not load the INST uCode section due "
615 "to interrupt\n");
616 return ret;
617 } else if (!ret) {
618 IWL_ERROR("Could not load the DATA uCode section\n");
619 return -ETIMEDOUT;
620 } else
621 ret = 0;
622
623 priv->ucode_write_complete = 0;
624
625 return ret;
626 }
627
628 static int iwl5000_load_ucode(struct iwl_priv *priv)
629 {
630 int ret = 0;
631
632 /* check whether init ucode should be loaded, or rather runtime ucode */
633 if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) {
634 IWL_DEBUG_INFO("Init ucode found. Loading init ucode...\n");
635 ret = iwl5000_load_given_ucode(priv,
636 &priv->ucode_init, &priv->ucode_init_data);
637 if (!ret) {
638 IWL_DEBUG_INFO("Init ucode load complete.\n");
639 priv->ucode_type = UCODE_INIT;
640 }
641 } else {
642 IWL_DEBUG_INFO("Init ucode not found, or already loaded. "
643 "Loading runtime ucode...\n");
644 ret = iwl5000_load_given_ucode(priv,
645 &priv->ucode_code, &priv->ucode_data);
646 if (!ret) {
647 IWL_DEBUG_INFO("Runtime ucode load complete.\n");
648 priv->ucode_type = UCODE_RT;
649 }
650 }
651
652 return ret;
653 }
654
655 static void iwl5000_init_alive_start(struct iwl_priv *priv)
656 {
657 int ret = 0;
658
659 /* Check alive response for "valid" sign from uCode */
660 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
661 /* We had an error bringing up the hardware, so take it
662 * all the way back down so we can try again */
663 IWL_DEBUG_INFO("Initialize Alive failed.\n");
664 goto restart;
665 }
666
667 /* initialize uCode was loaded... verify inst image.
668 * This is a paranoid check, because we would not have gotten the
669 * "initialize" alive if code weren't properly loaded. */
670 if (iwl_verify_ucode(priv)) {
671 /* Runtime instruction load was bad;
672 * take it all the way back down so we can try again */
673 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
674 goto restart;
675 }
676
677 iwlcore_clear_stations_table(priv);
678 ret = priv->cfg->ops->lib->alive_notify(priv);
679 if (ret) {
680 IWL_WARNING("Could not complete ALIVE transition: %d\n", ret);
681 goto restart;
682 }
683
684 iwl5000_send_calib_cfg(priv);
685 return;
686
687 restart:
688 /* real restart (first load init_ucode) */
689 queue_work(priv->workqueue, &priv->restart);
690 }
691
692 static void iwl5000_set_wr_ptrs(struct iwl_priv *priv,
693 int txq_id, u32 index)
694 {
695 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
696 (index & 0xff) | (txq_id << 8));
697 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(txq_id), index);
698 }
699
700 static void iwl5000_tx_queue_set_status(struct iwl_priv *priv,
701 struct iwl_tx_queue *txq,
702 int tx_fifo_id, int scd_retry)
703 {
704 int txq_id = txq->q.id;
705 int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0;
706
707 iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id),
708 (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
709 (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) |
710 (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) |
711 IWL50_SCD_QUEUE_STTS_REG_MSK);
712
713 txq->sched_retry = scd_retry;
714
715 IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
716 active ? "Activate" : "Deactivate",
717 scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
718 }
719
720 static int iwl5000_send_wimax_coex(struct iwl_priv *priv)
721 {
722 struct iwl_wimax_coex_cmd coex_cmd;
723
724 memset(&coex_cmd, 0, sizeof(coex_cmd));
725
726 return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD,
727 sizeof(coex_cmd), &coex_cmd);
728 }
729
730 static int iwl5000_alive_notify(struct iwl_priv *priv)
731 {
732 u32 a;
733 int i = 0;
734 unsigned long flags;
735 int ret;
736
737 spin_lock_irqsave(&priv->lock, flags);
738
739 ret = iwl_grab_nic_access(priv);
740 if (ret) {
741 spin_unlock_irqrestore(&priv->lock, flags);
742 return ret;
743 }
744
745 priv->scd_base_addr = iwl_read_prph(priv, IWL50_SCD_SRAM_BASE_ADDR);
746 a = priv->scd_base_addr + IWL50_SCD_CONTEXT_DATA_OFFSET;
747 for (; a < priv->scd_base_addr + IWL50_SCD_TX_STTS_BITMAP_OFFSET;
748 a += 4)
749 iwl_write_targ_mem(priv, a, 0);
750 for (; a < priv->scd_base_addr + IWL50_SCD_TRANSLATE_TBL_OFFSET;
751 a += 4)
752 iwl_write_targ_mem(priv, a, 0);
753 for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
754 iwl_write_targ_mem(priv, a, 0);
755
756 iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR,
757 (priv->shared_phys +
758 offsetof(struct iwl5000_shared, queues_byte_cnt_tbls)) >> 10);
759 iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL,
760 IWL50_SCD_QUEUECHAIN_SEL_ALL(
761 priv->hw_params.max_txq_num));
762 iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0);
763
764 /* initiate the queues */
765 for (i = 0; i < priv->hw_params.max_txq_num; i++) {
766 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(i), 0);
767 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
768 iwl_write_targ_mem(priv, priv->scd_base_addr +
769 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
770 iwl_write_targ_mem(priv, priv->scd_base_addr +
771 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i) +
772 sizeof(u32),
773 ((SCD_WIN_SIZE <<
774 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
775 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
776 ((SCD_FRAME_LIMIT <<
777 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
778 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
779 }
780
781 iwl_write_prph(priv, IWL50_SCD_INTERRUPT_MASK,
782 IWL_MASK(0, priv->hw_params.max_txq_num));
783
784 /* Activate all Tx DMA/FIFO channels */
785 priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
786
787 iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
788 /* map qos queues to fifos one-to-one */
789 for (i = 0; i < ARRAY_SIZE(iwl5000_default_queue_to_tx_fifo); i++) {
790 int ac = iwl5000_default_queue_to_tx_fifo[i];
791 iwl_txq_ctx_activate(priv, i);
792 iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
793 }
794 /* TODO - need to initialize those FIFOs inside the loop above,
795 * not only mark them as active */
796 iwl_txq_ctx_activate(priv, 4);
797 iwl_txq_ctx_activate(priv, 7);
798 iwl_txq_ctx_activate(priv, 8);
799 iwl_txq_ctx_activate(priv, 9);
800
801 iwl_release_nic_access(priv);
802 spin_unlock_irqrestore(&priv->lock, flags);
803
804
805 iwl5000_send_wimax_coex(priv);
806
807 iwl5000_send_Xtal_calib(priv);
808
809 if (priv->ucode_type == UCODE_RT) {
810 iwl5000_send_calib_results(priv);
811 set_bit(STATUS_READY, &priv->status);
812 priv->is_open = 1;
813 }
814
815 return 0;
816 }
817
818 static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
819 {
820 if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
821 (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
822 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
823 IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES);
824 return -EINVAL;
825 }
826
827 priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
828 priv->hw_params.first_ampdu_q = IWL50_FIRST_AMPDU_QUEUE;
829 priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
830 priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
831 priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
832 if (priv->cfg->mod_params->amsdu_size_8K)
833 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
834 else
835 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
836 priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
837 priv->hw_params.max_stations = IWL5000_STATION_COUNT;
838 priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
839 priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE;
840 priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE;
841 priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
842 priv->hw_params.fat_channel = BIT(IEEE80211_BAND_2GHZ) |
843 BIT(IEEE80211_BAND_5GHZ);
844 priv->hw_params.sens = &iwl5000_sensitivity;
845
846 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
847 case CSR_HW_REV_TYPE_5100:
848 case CSR_HW_REV_TYPE_5150:
849 priv->hw_params.tx_chains_num = 1;
850 priv->hw_params.rx_chains_num = 2;
851 /* FIXME: move to ANT_A, ANT_B, ANT_C enum */
852 priv->hw_params.valid_tx_ant = ANT_A;
853 priv->hw_params.valid_rx_ant = ANT_AB;
854 break;
855 case CSR_HW_REV_TYPE_5300:
856 case CSR_HW_REV_TYPE_5350:
857 priv->hw_params.tx_chains_num = 3;
858 priv->hw_params.rx_chains_num = 3;
859 priv->hw_params.valid_tx_ant = ANT_ABC;
860 priv->hw_params.valid_rx_ant = ANT_ABC;
861 break;
862 }
863
864 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
865 case CSR_HW_REV_TYPE_5100:
866 case CSR_HW_REV_TYPE_5300:
867 /* 5X00 wants in Celsius */
868 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
869 break;
870 case CSR_HW_REV_TYPE_5150:
871 case CSR_HW_REV_TYPE_5350:
872 /* 5X50 wants in Kelvin */
873 priv->hw_params.ct_kill_threshold =
874 CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
875 break;
876 }
877
878 return 0;
879 }
880
881 static int iwl5000_alloc_shared_mem(struct iwl_priv *priv)
882 {
883 priv->shared_virt = pci_alloc_consistent(priv->pci_dev,
884 sizeof(struct iwl5000_shared),
885 &priv->shared_phys);
886 if (!priv->shared_virt)
887 return -ENOMEM;
888
889 memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared));
890
891 priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed);
892
893 return 0;
894 }
895
896 static void iwl5000_free_shared_mem(struct iwl_priv *priv)
897 {
898 if (priv->shared_virt)
899 pci_free_consistent(priv->pci_dev,
900 sizeof(struct iwl5000_shared),
901 priv->shared_virt,
902 priv->shared_phys);
903 }
904
905 static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv)
906 {
907 struct iwl5000_shared *s = priv->shared_virt;
908 return le32_to_cpu(s->rb_closed) & 0xFFF;
909 }
910
911 /**
912 * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
913 */
914 static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
915 struct iwl_tx_queue *txq,
916 u16 byte_cnt)
917 {
918 struct iwl5000_shared *shared_data = priv->shared_virt;
919 int txq_id = txq->q.id;
920 u8 sec_ctl = 0;
921 u8 sta = 0;
922 int len;
923
924 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
925
926 if (txq_id != IWL_CMD_QUEUE_NUM) {
927 sta = txq->cmd[txq->q.write_ptr].cmd.tx.sta_id;
928 sec_ctl = txq->cmd[txq->q.write_ptr].cmd.tx.sec_ctl;
929
930 switch (sec_ctl & TX_CMD_SEC_MSK) {
931 case TX_CMD_SEC_CCM:
932 len += CCMP_MIC_LEN;
933 break;
934 case TX_CMD_SEC_TKIP:
935 len += TKIP_ICV_LEN;
936 break;
937 case TX_CMD_SEC_WEP:
938 len += WEP_IV_LEN + WEP_ICV_LEN;
939 break;
940 }
941 }
942
943 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
944 tfd_offset[txq->q.write_ptr], byte_cnt, len);
945
946 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
947 tfd_offset[txq->q.write_ptr], sta_id, sta);
948
949 if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) {
950 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
951 tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr],
952 byte_cnt, len);
953 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
954 tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr],
955 sta_id, sta);
956 }
957 }
958
959 static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
960 struct iwl_tx_queue *txq)
961 {
962 int txq_id = txq->q.id;
963 struct iwl5000_shared *shared_data = priv->shared_virt;
964 u8 sta = 0;
965
966 if (txq_id != IWL_CMD_QUEUE_NUM)
967 sta = txq->cmd[txq->q.read_ptr].cmd.tx.sta_id;
968
969 shared_data->queues_byte_cnt_tbls[txq_id].tfd_offset[txq->q.read_ptr].
970 val = cpu_to_le16(1 | (sta << 12));
971
972 if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) {
973 shared_data->queues_byte_cnt_tbls[txq_id].
974 tfd_offset[IWL50_QUEUE_SIZE + txq->q.read_ptr].
975 val = cpu_to_le16(1 | (sta << 12));
976 }
977 }
978
979 static u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
980 {
981 u16 size = (u16)sizeof(struct iwl_addsta_cmd);
982 memcpy(data, cmd, size);
983 return size;
984 }
985
986
987 /*
988 * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask
989 * must be called under priv->lock and mac access
990 */
991 static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask)
992 {
993 iwl_write_prph(priv, IWL50_SCD_TXFACT, mask);
994 }
995
996
997 static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp)
998 {
999 __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status +
1000 tx_resp->frame_count);
1001 return le32_to_cpu(*scd_ssn) & MAX_SN;
1002
1003 }
1004
1005 static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv,
1006 struct iwl_ht_agg *agg,
1007 struct iwl5000_tx_resp *tx_resp,
1008 u16 start_idx)
1009 {
1010 u16 status;
1011 struct agg_tx_status *frame_status = &tx_resp->status;
1012 struct ieee80211_tx_info *info = NULL;
1013 struct ieee80211_hdr *hdr = NULL;
1014 int i, sh;
1015 int txq_id, idx;
1016 u16 seq;
1017
1018 if (agg->wait_for_ba)
1019 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
1020
1021 agg->frame_count = tx_resp->frame_count;
1022 agg->start_idx = start_idx;
1023 agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1024 agg->bitmap = 0;
1025
1026 /* # frames attempted by Tx command */
1027 if (agg->frame_count == 1) {
1028 /* Only one frame was attempted; no block-ack will arrive */
1029 status = le16_to_cpu(frame_status[0].status);
1030 seq = le16_to_cpu(frame_status[0].sequence);
1031 idx = SEQ_TO_INDEX(seq);
1032 txq_id = SEQ_TO_QUEUE(seq);
1033
1034 /* FIXME: code repetition */
1035 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
1036 agg->frame_count, agg->start_idx, idx);
1037
1038 info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
1039 info->status.retry_count = tx_resp->failure_frame;
1040 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1041 info->flags |= iwl_is_tx_success(status)?
1042 IEEE80211_TX_STAT_ACK : 0;
1043 iwl4965_hwrate_to_tx_control(priv,
1044 le32_to_cpu(tx_resp->rate_n_flags),
1045 info);
1046 /* FIXME: code repetition end */
1047
1048 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
1049 status & 0xff, tx_resp->failure_frame);
1050 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
1051 iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags));
1052
1053 agg->wait_for_ba = 0;
1054 } else {
1055 /* Two or more frames were attempted; expect block-ack */
1056 u64 bitmap = 0;
1057 int start = agg->start_idx;
1058
1059 /* Construct bit-map of pending frames within Tx window */
1060 for (i = 0; i < agg->frame_count; i++) {
1061 u16 sc;
1062 status = le16_to_cpu(frame_status[i].status);
1063 seq = le16_to_cpu(frame_status[i].sequence);
1064 idx = SEQ_TO_INDEX(seq);
1065 txq_id = SEQ_TO_QUEUE(seq);
1066
1067 if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
1068 AGG_TX_STATE_ABORT_MSK))
1069 continue;
1070
1071 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
1072 agg->frame_count, txq_id, idx);
1073
1074 hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx);
1075
1076 sc = le16_to_cpu(hdr->seq_ctrl);
1077 if (idx != (SEQ_TO_SN(sc) & 0xff)) {
1078 IWL_ERROR("BUG_ON idx doesn't match seq control"
1079 " idx=%d, seq_idx=%d, seq=%d\n",
1080 idx, SEQ_TO_SN(sc),
1081 hdr->seq_ctrl);
1082 return -1;
1083 }
1084
1085 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
1086 i, idx, SEQ_TO_SN(sc));
1087
1088 sh = idx - start;
1089 if (sh > 64) {
1090 sh = (start - idx) + 0xff;
1091 bitmap = bitmap << sh;
1092 sh = 0;
1093 start = idx;
1094 } else if (sh < -64)
1095 sh = 0xff - (start - idx);
1096 else if (sh < 0) {
1097 sh = start - idx;
1098 start = idx;
1099 bitmap = bitmap << sh;
1100 sh = 0;
1101 }
1102 bitmap |= (1 << sh);
1103 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
1104 start, (u32)(bitmap & 0xFFFFFFFF));
1105 }
1106
1107 agg->bitmap = bitmap;
1108 agg->start_idx = start;
1109 agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1110 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
1111 agg->frame_count, agg->start_idx,
1112 (unsigned long long)agg->bitmap);
1113
1114 if (bitmap)
1115 agg->wait_for_ba = 1;
1116 }
1117 return 0;
1118 }
1119
1120 static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
1121 struct iwl_rx_mem_buffer *rxb)
1122 {
1123 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1124 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1125 int txq_id = SEQ_TO_QUEUE(sequence);
1126 int index = SEQ_TO_INDEX(sequence);
1127 struct iwl_tx_queue *txq = &priv->txq[txq_id];
1128 struct ieee80211_tx_info *info;
1129 struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
1130 u32 status = le16_to_cpu(tx_resp->status.status);
1131 int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION;
1132 u16 fc;
1133 struct ieee80211_hdr *hdr;
1134 u8 *qc = NULL;
1135
1136 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
1137 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
1138 "is out of range [0-%d] %d %d\n", txq_id,
1139 index, txq->q.n_bd, txq->q.write_ptr,
1140 txq->q.read_ptr);
1141 return;
1142 }
1143
1144 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
1145 memset(&info->status, 0, sizeof(info->status));
1146
1147 hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
1148 fc = le16_to_cpu(hdr->frame_control);
1149 if (ieee80211_is_qos_data(fc)) {
1150 qc = ieee80211_get_qos_ctrl(hdr, ieee80211_get_hdrlen(fc));
1151 tid = qc[0] & 0xf;
1152 }
1153
1154 sta_id = iwl_get_ra_sta_id(priv, hdr);
1155 if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
1156 IWL_ERROR("Station not known\n");
1157 return;
1158 }
1159
1160 if (txq->sched_retry) {
1161 const u32 scd_ssn = iwl5000_get_scd_ssn(tx_resp);
1162 struct iwl_ht_agg *agg = NULL;
1163
1164 if (!qc)
1165 return;
1166
1167 agg = &priv->stations[sta_id].tid[tid].agg;
1168
1169 iwl5000_tx_status_reply_tx(priv, agg, tx_resp, index);
1170
1171 if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) {
1172 /* TODO: send BAR */
1173 }
1174
1175 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
1176 int freed, ampdu_q;
1177 index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
1178 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
1179 "%d index %d\n", scd_ssn , index);
1180 freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1181 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1182
1183 if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
1184 txq_id >= 0 && priv->mac80211_registered &&
1185 agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) {
1186 /* calculate mac80211 ampdu sw queue to wake */
1187 ampdu_q = txq_id - IWL50_FIRST_AMPDU_QUEUE +
1188 priv->hw->queues;
1189 if (agg->state == IWL_AGG_OFF)
1190 ieee80211_wake_queue(priv->hw, txq_id);
1191 else
1192 ieee80211_wake_queue(priv->hw, ampdu_q);
1193 }
1194 iwl_txq_check_empty(priv, sta_id, tid, txq_id);
1195 }
1196 } else {
1197 info->status.retry_count = tx_resp->failure_frame;
1198 info->flags =
1199 iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0;
1200 iwl4965_hwrate_to_tx_control(priv,
1201 le32_to_cpu(tx_resp->rate_n_flags),
1202 info);
1203
1204 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags "
1205 "0x%x retries %d\n", txq_id,
1206 iwl_get_tx_fail_reason(status),
1207 status, le32_to_cpu(tx_resp->rate_n_flags),
1208 tx_resp->failure_frame);
1209
1210 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
1211 if (index != -1) {
1212 int freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1213 if (tid != MAX_TID_COUNT)
1214 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1215 if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
1216 (txq_id >= 0) && priv->mac80211_registered)
1217 ieee80211_wake_queue(priv->hw, txq_id);
1218 if (tid != MAX_TID_COUNT)
1219 iwl_txq_check_empty(priv, sta_id, tid, txq_id);
1220 }
1221 }
1222
1223 if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
1224 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
1225 }
1226
1227 /* Currently 5000 is the supperset of everything */
1228 static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len)
1229 {
1230 return len;
1231 }
1232
1233 static void iwl5000_setup_deferred_work(struct iwl_priv *priv)
1234 {
1235 /* in 5000 the tx power calibration is done in uCode */
1236 priv->disable_tx_power_cal = 1;
1237 }
1238
1239 static void iwl5000_rx_handler_setup(struct iwl_priv *priv)
1240 {
1241 /* init calibration handlers */
1242 priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
1243 iwl5000_rx_calib_result;
1244 priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] =
1245 iwl5000_rx_calib_complete;
1246 priv->rx_handlers[REPLY_TX] = iwl5000_rx_reply_tx;
1247 }
1248
1249
1250 static int iwl5000_hw_valid_rtc_data_addr(u32 addr)
1251 {
1252 return (addr >= RTC_DATA_LOWER_BOUND) &&
1253 (addr < IWL50_RTC_DATA_UPPER_BOUND);
1254 }
1255
1256 static int iwl5000_send_rxon_assoc(struct iwl_priv *priv)
1257 {
1258 int ret = 0;
1259 struct iwl5000_rxon_assoc_cmd rxon_assoc;
1260 const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
1261 const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
1262
1263 if ((rxon1->flags == rxon2->flags) &&
1264 (rxon1->filter_flags == rxon2->filter_flags) &&
1265 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1266 (rxon1->ofdm_ht_single_stream_basic_rates ==
1267 rxon2->ofdm_ht_single_stream_basic_rates) &&
1268 (rxon1->ofdm_ht_dual_stream_basic_rates ==
1269 rxon2->ofdm_ht_dual_stream_basic_rates) &&
1270 (rxon1->ofdm_ht_triple_stream_basic_rates ==
1271 rxon2->ofdm_ht_triple_stream_basic_rates) &&
1272 (rxon1->acquisition_data == rxon2->acquisition_data) &&
1273 (rxon1->rx_chain == rxon2->rx_chain) &&
1274 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1275 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1276 return 0;
1277 }
1278
1279 rxon_assoc.flags = priv->staging_rxon.flags;
1280 rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
1281 rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
1282 rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
1283 rxon_assoc.reserved1 = 0;
1284 rxon_assoc.reserved2 = 0;
1285 rxon_assoc.reserved3 = 0;
1286 rxon_assoc.ofdm_ht_single_stream_basic_rates =
1287 priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
1288 rxon_assoc.ofdm_ht_dual_stream_basic_rates =
1289 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
1290 rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
1291 rxon_assoc.ofdm_ht_triple_stream_basic_rates =
1292 priv->staging_rxon.ofdm_ht_triple_stream_basic_rates;
1293 rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data;
1294
1295 ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
1296 sizeof(rxon_assoc), &rxon_assoc, NULL);
1297 if (ret)
1298 return ret;
1299
1300 return ret;
1301 }
1302
1303 static struct iwl_hcmd_ops iwl5000_hcmd = {
1304 .rxon_assoc = iwl5000_send_rxon_assoc,
1305 };
1306
1307 static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
1308 .get_hcmd_size = iwl5000_get_hcmd_size,
1309 .build_addsta_hcmd = iwl5000_build_addsta_hcmd,
1310 .gain_computation = iwl5000_gain_computation,
1311 .chain_noise_reset = iwl5000_chain_noise_reset,
1312 };
1313
1314 static struct iwl_lib_ops iwl5000_lib = {
1315 .set_hw_params = iwl5000_hw_set_hw_params,
1316 .alloc_shared_mem = iwl5000_alloc_shared_mem,
1317 .free_shared_mem = iwl5000_free_shared_mem,
1318 .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx,
1319 .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
1320 .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
1321 .txq_set_sched = iwl5000_txq_set_sched,
1322 .rx_handler_setup = iwl5000_rx_handler_setup,
1323 .setup_deferred_work = iwl5000_setup_deferred_work,
1324 .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
1325 .load_ucode = iwl5000_load_ucode,
1326 .init_alive_start = iwl5000_init_alive_start,
1327 .alive_notify = iwl5000_alive_notify,
1328 .apm_ops = {
1329 .init = iwl5000_apm_init,
1330 .reset = iwl5000_apm_reset,
1331 .stop = iwl5000_apm_stop,
1332 .config = iwl5000_nic_config,
1333 .set_pwr_src = iwl4965_set_pwr_src,
1334 },
1335 .eeprom_ops = {
1336 .regulatory_bands = {
1337 EEPROM_5000_REG_BAND_1_CHANNELS,
1338 EEPROM_5000_REG_BAND_2_CHANNELS,
1339 EEPROM_5000_REG_BAND_3_CHANNELS,
1340 EEPROM_5000_REG_BAND_4_CHANNELS,
1341 EEPROM_5000_REG_BAND_5_CHANNELS,
1342 EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
1343 EEPROM_5000_REG_BAND_52_FAT_CHANNELS
1344 },
1345 .verify_signature = iwlcore_eeprom_verify_signature,
1346 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
1347 .release_semaphore = iwlcore_eeprom_release_semaphore,
1348 .check_version = iwl5000_eeprom_check_version,
1349 .query_addr = iwl5000_eeprom_query_addr,
1350 },
1351 };
1352
1353 static struct iwl_ops iwl5000_ops = {
1354 .lib = &iwl5000_lib,
1355 .hcmd = &iwl5000_hcmd,
1356 .utils = &iwl5000_hcmd_utils,
1357 };
1358
1359 static struct iwl_mod_params iwl50_mod_params = {
1360 .num_of_queues = IWL50_NUM_QUEUES,
1361 .enable_qos = 1,
1362 .amsdu_size_8K = 1,
1363 .restart_fw = 1,
1364 /* the rest are 0 by default */
1365 };
1366
1367
1368 struct iwl_cfg iwl5300_agn_cfg = {
1369 .name = "5300AGN",
1370 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1371 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1372 .ops = &iwl5000_ops,
1373 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1374 .mod_params = &iwl50_mod_params,
1375 };
1376
1377 struct iwl_cfg iwl5100_agn_cfg = {
1378 .name = "5100AGN",
1379 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1380 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1381 .ops = &iwl5000_ops,
1382 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1383 .mod_params = &iwl50_mod_params,
1384 };
1385
1386 struct iwl_cfg iwl5350_agn_cfg = {
1387 .name = "5350AGN",
1388 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1389 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1390 .ops = &iwl5000_ops,
1391 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1392 .mod_params = &iwl50_mod_params,
1393 };
1394
1395 module_param_named(disable50, iwl50_mod_params.disable, int, 0444);
1396 MODULE_PARM_DESC(disable50,
1397 "manually disable the 50XX radio (default 0 [radio on])");
1398 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
1399 MODULE_PARM_DESC(swcrypto50,
1400 "using software crypto engine (default 0 [hardware])\n");
1401 module_param_named(debug50, iwl50_mod_params.debug, int, 0444);
1402 MODULE_PARM_DESC(debug50, "50XX debug output mask");
1403 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
1404 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
1405 module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
1406 MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
1407 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
1408 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
1409 module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444);
1410 MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error");
Linux kernel - Deliverables
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