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iwlwifi: memory allocation optimization
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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-sta.h"
45 #include "iwl-helpers.h"
46 #include "iwl-5000-hw.h"
47
48 #define IWL5000_UCODE_API  "-1"
49
50 static const u16 iwl5000_default_queue_to_tx_fifo[] = {
51         IWL_TX_FIFO_AC3,
52         IWL_TX_FIFO_AC2,
53         IWL_TX_FIFO_AC1,
54         IWL_TX_FIFO_AC0,
55         IWL50_CMD_FIFO_NUM,
56         IWL_TX_FIFO_HCCA_1,
57         IWL_TX_FIFO_HCCA_2
58 };
59
60 /* FIXME: same implementation as 4965 */
61 static int iwl5000_apm_stop_master(struct iwl_priv *priv)
62 {
63         int ret = 0;
64         unsigned long flags;
65
66         spin_lock_irqsave(&priv->lock, flags);
67
68         /* set stop master bit */
69         iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
70
71         ret = iwl_poll_bit(priv, CSR_RESET,
72                                   CSR_RESET_REG_FLAG_MASTER_DISABLED,
73                                   CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
74         if (ret < 0)
75                 goto out;
76
77 out:
78         spin_unlock_irqrestore(&priv->lock, flags);
79         IWL_DEBUG_INFO("stop master\n");
80
81         return ret;
82 }
83
84
85 static int iwl5000_apm_init(struct iwl_priv *priv)
86 {
87         int ret = 0;
88
89         iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
90                     CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
91
92         /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
93         iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
94                     CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
95
96         /* Set FH wait treshold to maximum (HW error during stress W/A) */
97         iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL);
98
99         /* enable HAP INTA to move device L1a -> L0s */
100         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
101                     CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
102
103         iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
104
105         /* set "initialization complete" bit to move adapter
106          * D0U* --> D0A* state */
107         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
108
109         /* wait for clock stabilization */
110         ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
111                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
112                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
113         if (ret < 0) {
114                 IWL_DEBUG_INFO("Failed to init the card\n");
115                 return ret;
116         }
117
118         ret = iwl_grab_nic_access(priv);
119         if (ret)
120                 return ret;
121
122         /* enable DMA */
123         iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
124
125         udelay(20);
126
127         /* disable L1-Active */
128         iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
129                           APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
130
131         iwl_release_nic_access(priv);
132
133         return ret;
134 }
135
136 /* FIXME: this is indentical to 4965 */
137 static void iwl5000_apm_stop(struct iwl_priv *priv)
138 {
139         unsigned long flags;
140
141         iwl5000_apm_stop_master(priv);
142
143         spin_lock_irqsave(&priv->lock, flags);
144
145         iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
146
147         udelay(10);
148
149         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
150
151         spin_unlock_irqrestore(&priv->lock, flags);
152 }
153
154
155 static int iwl5000_apm_reset(struct iwl_priv *priv)
156 {
157         int ret = 0;
158         unsigned long flags;
159
160         iwl5000_apm_stop_master(priv);
161
162         spin_lock_irqsave(&priv->lock, flags);
163
164         iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
165
166         udelay(10);
167
168
169         /* FIXME: put here L1A -L0S w/a */
170
171         iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
172
173         /* set "initialization complete" bit to move adapter
174          * D0U* --> D0A* state */
175         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
176
177         /* wait for clock stabilization */
178         ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
179                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
180                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
181         if (ret < 0) {
182                 IWL_DEBUG_INFO("Failed to init the card\n");
183                 goto out;
184         }
185
186         ret = iwl_grab_nic_access(priv);
187         if (ret)
188                 goto out;
189
190         /* enable DMA */
191         iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
192
193         udelay(20);
194
195         /* disable L1-Active */
196         iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
197                           APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
198
199         iwl_release_nic_access(priv);
200
201 out:
202         spin_unlock_irqrestore(&priv->lock, flags);
203
204         return ret;
205 }
206
207
208 static void iwl5000_nic_config(struct iwl_priv *priv)
209 {
210         unsigned long flags;
211         u16 radio_cfg;
212         u8 val_link;
213
214         spin_lock_irqsave(&priv->lock, flags);
215
216         pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
217
218         /* L1 is enabled by BIOS */
219         if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN)
220                 /* diable L0S disabled L1A enabled */
221                 iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
222         else
223                 /* L0S enabled L1A disabled */
224                 iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
225
226         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
227
228         /* write radio config values to register */
229         if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) < EEPROM_5000_RF_CFG_TYPE_MAX)
230                 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
231                             EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
232                             EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
233                             EEPROM_RF_CFG_DASH_MSK(radio_cfg));
234
235         /* set CSR_HW_CONFIG_REG for uCode use */
236         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
237                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
238                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
239
240         /* W/A : NIC is stuck in a reset state after Early PCIe power off
241          * (PCIe power is lost before PERST# is asserted),
242          * causing ME FW to lose ownership and not being able to obtain it back.
243          */
244          iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
245                                 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
246                                 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
247
248         spin_unlock_irqrestore(&priv->lock, flags);
249 }
250
251
252
253 /*
254  * EEPROM
255  */
256 static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address)
257 {
258         u16 offset = 0;
259
260         if ((address & INDIRECT_ADDRESS) == 0)
261                 return address;
262
263         switch (address & INDIRECT_TYPE_MSK) {
264         case INDIRECT_HOST:
265                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST);
266                 break;
267         case INDIRECT_GENERAL:
268                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL);
269                 break;
270         case INDIRECT_REGULATORY:
271                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY);
272                 break;
273         case INDIRECT_CALIBRATION:
274                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION);
275                 break;
276         case INDIRECT_PROCESS_ADJST:
277                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST);
278                 break;
279         case INDIRECT_OTHERS:
280                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS);
281                 break;
282         default:
283                 IWL_ERROR("illegal indirect type: 0x%X\n",
284                 address & INDIRECT_TYPE_MSK);
285                 break;
286         }
287
288         /* translate the offset from words to byte */
289         return (address & ADDRESS_MSK) + (offset << 1);
290 }
291
292 static int iwl5000_eeprom_check_version(struct iwl_priv *priv)
293 {
294         u16 eeprom_ver;
295         struct iwl_eeprom_calib_hdr {
296                 u8 version;
297                 u8 pa_type;
298                 u16 voltage;
299         } *hdr;
300
301         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
302
303         hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
304                                                         EEPROM_5000_CALIB_ALL);
305
306         if (eeprom_ver < EEPROM_5000_EEPROM_VERSION ||
307             hdr->version < EEPROM_5000_TX_POWER_VERSION)
308                 goto err;
309
310         return 0;
311 err:
312         IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
313                   eeprom_ver, EEPROM_5000_EEPROM_VERSION,
314                   hdr->version, EEPROM_5000_TX_POWER_VERSION);
315         return -EINVAL;
316
317 }
318
319 static void iwl5000_gain_computation(struct iwl_priv *priv,
320                 u32 average_noise[NUM_RX_CHAINS],
321                 u16 min_average_noise_antenna_i,
322                 u32 min_average_noise)
323 {
324         int i;
325         s32 delta_g;
326         struct iwl_chain_noise_data *data = &priv->chain_noise_data;
327
328         /* Find Gain Code for the antennas B and C */
329         for (i = 1; i < NUM_RX_CHAINS; i++) {
330                 if ((data->disconn_array[i])) {
331                         data->delta_gain_code[i] = 0;
332                         continue;
333                 }
334                 delta_g = (1000 * ((s32)average_noise[0] -
335                         (s32)average_noise[i])) / 1500;
336                 /* bound gain by 2 bits value max, 3rd bit is sign */
337                 data->delta_gain_code[i] =
338                         min(abs(delta_g), CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
339
340                 if (delta_g < 0)
341                         /* set negative sign */
342                         data->delta_gain_code[i] |= (1 << 2);
343         }
344
345         IWL_DEBUG_CALIB("Delta gains: ANT_B = %d  ANT_C = %d\n",
346                         data->delta_gain_code[1], data->delta_gain_code[2]);
347
348         if (!data->radio_write) {
349                 struct iwl5000_calibration_chain_noise_gain_cmd cmd;
350                 memset(&cmd, 0, sizeof(cmd));
351
352                 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD;
353                 cmd.delta_gain_1 = data->delta_gain_code[1];
354                 cmd.delta_gain_2 = data->delta_gain_code[2];
355                 iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD,
356                         sizeof(cmd), &cmd, NULL);
357
358                 data->radio_write = 1;
359                 data->state = IWL_CHAIN_NOISE_CALIBRATED;
360         }
361
362         data->chain_noise_a = 0;
363         data->chain_noise_b = 0;
364         data->chain_noise_c = 0;
365         data->chain_signal_a = 0;
366         data->chain_signal_b = 0;
367         data->chain_signal_c = 0;
368         data->beacon_count = 0;
369 }
370
371 static void iwl5000_chain_noise_reset(struct iwl_priv *priv)
372 {
373         struct iwl_chain_noise_data *data = &priv->chain_noise_data;
374
375         if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
376                 struct iwl5000_calibration_chain_noise_reset_cmd cmd;
377
378                 memset(&cmd, 0, sizeof(cmd));
379                 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD;
380                 if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
381                         sizeof(cmd), &cmd))
382                         IWL_ERROR("Could not send REPLY_PHY_CALIBRATION_CMD\n");
383                 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
384                 IWL_DEBUG_CALIB("Run chain_noise_calibrate\n");
385         }
386 }
387
388 static void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
389                         __le32 *tx_flags)
390 {
391         if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
392             (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT))
393                 *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK;
394         else
395                 *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK;
396 }
397
398 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
399         .min_nrg_cck = 95,
400         .max_nrg_cck = 0,
401         .auto_corr_min_ofdm = 90,
402         .auto_corr_min_ofdm_mrc = 170,
403         .auto_corr_min_ofdm_x1 = 120,
404         .auto_corr_min_ofdm_mrc_x1 = 240,
405
406         .auto_corr_max_ofdm = 120,
407         .auto_corr_max_ofdm_mrc = 210,
408         .auto_corr_max_ofdm_x1 = 155,
409         .auto_corr_max_ofdm_mrc_x1 = 290,
410
411         .auto_corr_min_cck = 125,
412         .auto_corr_max_cck = 200,
413         .auto_corr_min_cck_mrc = 170,
414         .auto_corr_max_cck_mrc = 400,
415         .nrg_th_cck = 95,
416         .nrg_th_ofdm = 95,
417 };
418
419 static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
420                                            size_t offset)
421 {
422         u32 address = eeprom_indirect_address(priv, offset);
423         BUG_ON(address >= priv->cfg->eeprom_size);
424         return &priv->eeprom[address];
425 }
426
427 /*
428  *  Calibration
429  */
430 static int iwl5000_send_Xtal_calib(struct iwl_priv *priv)
431 {
432         u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL);
433
434         struct iwl5000_calibration cal_cmd = {
435                 .op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD,
436                 .data = {
437                         (u8)xtal_calib[0],
438                         (u8)xtal_calib[1],
439                 }
440         };
441
442         return iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
443                                 sizeof(cal_cmd), &cal_cmd);
444 }
445
446 static int iwl5000_send_calib_results(struct iwl_priv *priv)
447 {
448         int ret = 0;
449
450         struct iwl_host_cmd hcmd = {
451                 .id = REPLY_PHY_CALIBRATION_CMD,
452                 .meta.flags = CMD_SIZE_HUGE,
453         };
454
455         if (priv->calib_results.lo_res) {
456                 hcmd.len = priv->calib_results.lo_res_len;
457                 hcmd.data = priv->calib_results.lo_res;
458                 ret = iwl_send_cmd_sync(priv, &hcmd);
459
460                 if (ret)
461                         goto err;
462         }
463
464         if (priv->calib_results.tx_iq_res) {
465                 hcmd.len = priv->calib_results.tx_iq_res_len;
466                 hcmd.data = priv->calib_results.tx_iq_res;
467                 ret = iwl_send_cmd_sync(priv, &hcmd);
468
469                 if (ret)
470                         goto err;
471         }
472
473         if (priv->calib_results.tx_iq_perd_res) {
474                 hcmd.len = priv->calib_results.tx_iq_perd_res_len;
475                 hcmd.data = priv->calib_results.tx_iq_perd_res;
476                 ret = iwl_send_cmd_sync(priv, &hcmd);
477
478                 if (ret)
479                         goto err;
480         }
481
482         return 0;
483 err:
484         IWL_ERROR("Error %d\n", ret);
485         return ret;
486 }
487
488 static int iwl5000_send_calib_cfg(struct iwl_priv *priv)
489 {
490         struct iwl5000_calib_cfg_cmd calib_cfg_cmd;
491         struct iwl_host_cmd cmd = {
492                 .id = CALIBRATION_CFG_CMD,
493                 .len = sizeof(struct iwl5000_calib_cfg_cmd),
494                 .data = &calib_cfg_cmd,
495         };
496
497         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
498         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
499         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
500         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
501         calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL;
502
503         return iwl_send_cmd(priv, &cmd);
504 }
505
506 static void iwl5000_rx_calib_result(struct iwl_priv *priv,
507                              struct iwl_rx_mem_buffer *rxb)
508 {
509         struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
510         struct iwl5000_calib_hdr *hdr = (struct iwl5000_calib_hdr *)pkt->u.raw;
511         int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK;
512
513         iwl_free_calib_results(priv);
514
515         /* reduce the size of the length field itself */
516         len -= 4;
517
518         switch (hdr->op_code) {
519         case IWL5000_PHY_CALIBRATE_LO_CMD:
520                 priv->calib_results.lo_res = kzalloc(len, GFP_ATOMIC);
521                 priv->calib_results.lo_res_len = len;
522                 memcpy(priv->calib_results.lo_res, pkt->u.raw, len);
523                 break;
524         case IWL5000_PHY_CALIBRATE_TX_IQ_CMD:
525                 priv->calib_results.tx_iq_res = kzalloc(len, GFP_ATOMIC);
526                 priv->calib_results.tx_iq_res_len = len;
527                 memcpy(priv->calib_results.tx_iq_res, pkt->u.raw, len);
528                 break;
529         case IWL5000_PHY_CALIBRATE_TX_IQ_PERD_CMD:
530                 priv->calib_results.tx_iq_perd_res = kzalloc(len, GFP_ATOMIC);
531                 priv->calib_results.tx_iq_perd_res_len = len;
532                 memcpy(priv->calib_results.tx_iq_perd_res, pkt->u.raw, len);
533                 break;
534         default:
535                 IWL_ERROR("Unknown calibration notification %d\n",
536                           hdr->op_code);
537                 return;
538         }
539 }
540
541 static void iwl5000_rx_calib_complete(struct iwl_priv *priv,
542                                struct iwl_rx_mem_buffer *rxb)
543 {
544         IWL_DEBUG_INFO("Init. calibration is completed, restarting fw.\n");
545         queue_work(priv->workqueue, &priv->restart);
546 }
547
548 /*
549  * ucode
550  */
551 static int iwl5000_load_section(struct iwl_priv *priv,
552                                 struct fw_desc *image,
553                                 u32 dst_addr)
554 {
555         int ret = 0;
556         unsigned long flags;
557
558         dma_addr_t phy_addr = image->p_addr;
559         u32 byte_cnt = image->len;
560
561         spin_lock_irqsave(&priv->lock, flags);
562         ret = iwl_grab_nic_access(priv);
563         if (ret) {
564                 spin_unlock_irqrestore(&priv->lock, flags);
565                 return ret;
566         }
567
568         iwl_write_direct32(priv,
569                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
570                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
571
572         iwl_write_direct32(priv,
573                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
574
575         iwl_write_direct32(priv,
576                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
577                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
578
579         /* FIME: write the MSB of the phy_addr in CTRL1
580          * iwl_write_direct32(priv,
581                 IWL_FH_TFDIB_CTRL1_REG(IWL_FH_SRVC_CHNL),
582                 ((phy_addr & MSB_MSK)
583                         << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_count);
584          */
585         iwl_write_direct32(priv,
586                 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), byte_cnt);
587         iwl_write_direct32(priv,
588                 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
589                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
590                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
591                 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
592
593         iwl_write_direct32(priv,
594                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
595                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE       |
596                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL |
597                 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
598
599         iwl_release_nic_access(priv);
600         spin_unlock_irqrestore(&priv->lock, flags);
601         return 0;
602 }
603
604 static int iwl5000_load_given_ucode(struct iwl_priv *priv,
605                 struct fw_desc *inst_image,
606                 struct fw_desc *data_image)
607 {
608         int ret = 0;
609
610         ret = iwl5000_load_section(
611                 priv, inst_image, RTC_INST_LOWER_BOUND);
612         if (ret)
613                 return ret;
614
615         IWL_DEBUG_INFO("INST uCode section being loaded...\n");
616         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
617                                 priv->ucode_write_complete, 5 * HZ);
618         if (ret == -ERESTARTSYS) {
619                 IWL_ERROR("Could not load the INST uCode section due "
620                         "to interrupt\n");
621                 return ret;
622         }
623         if (!ret) {
624                 IWL_ERROR("Could not load the INST uCode section\n");
625                 return -ETIMEDOUT;
626         }
627
628         priv->ucode_write_complete = 0;
629
630         ret = iwl5000_load_section(
631                 priv, data_image, RTC_DATA_LOWER_BOUND);
632         if (ret)
633                 return ret;
634
635         IWL_DEBUG_INFO("DATA uCode section being loaded...\n");
636
637         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
638                                 priv->ucode_write_complete, 5 * HZ);
639         if (ret == -ERESTARTSYS) {
640                 IWL_ERROR("Could not load the INST uCode section due "
641                         "to interrupt\n");
642                 return ret;
643         } else if (!ret) {
644                 IWL_ERROR("Could not load the DATA uCode section\n");
645                 return -ETIMEDOUT;
646         } else
647                 ret = 0;
648
649         priv->ucode_write_complete = 0;
650
651         return ret;
652 }
653
654 static int iwl5000_load_ucode(struct iwl_priv *priv)
655 {
656         int ret = 0;
657
658         /* check whether init ucode should be loaded, or rather runtime ucode */
659         if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) {
660                 IWL_DEBUG_INFO("Init ucode found. Loading init ucode...\n");
661                 ret = iwl5000_load_given_ucode(priv,
662                         &priv->ucode_init, &priv->ucode_init_data);
663                 if (!ret) {
664                         IWL_DEBUG_INFO("Init ucode load complete.\n");
665                         priv->ucode_type = UCODE_INIT;
666                 }
667         } else {
668                 IWL_DEBUG_INFO("Init ucode not found, or already loaded. "
669                         "Loading runtime ucode...\n");
670                 ret = iwl5000_load_given_ucode(priv,
671                         &priv->ucode_code, &priv->ucode_data);
672                 if (!ret) {
673                         IWL_DEBUG_INFO("Runtime ucode load complete.\n");
674                         priv->ucode_type = UCODE_RT;
675                 }
676         }
677
678         return ret;
679 }
680
681 static void iwl5000_init_alive_start(struct iwl_priv *priv)
682 {
683         int ret = 0;
684
685         /* Check alive response for "valid" sign from uCode */
686         if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
687                 /* We had an error bringing up the hardware, so take it
688                  * all the way back down so we can try again */
689                 IWL_DEBUG_INFO("Initialize Alive failed.\n");
690                 goto restart;
691         }
692
693         /* initialize uCode was loaded... verify inst image.
694          * This is a paranoid check, because we would not have gotten the
695          * "initialize" alive if code weren't properly loaded.  */
696         if (iwl_verify_ucode(priv)) {
697                 /* Runtime instruction load was bad;
698                  * take it all the way back down so we can try again */
699                 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
700                 goto restart;
701         }
702
703         iwl_clear_stations_table(priv);
704         ret = priv->cfg->ops->lib->alive_notify(priv);
705         if (ret) {
706                 IWL_WARNING("Could not complete ALIVE transition: %d\n", ret);
707                 goto restart;
708         }
709
710         iwl5000_send_calib_cfg(priv);
711         return;
712
713 restart:
714         /* real restart (first load init_ucode) */
715         queue_work(priv->workqueue, &priv->restart);
716 }
717
718 static void iwl5000_set_wr_ptrs(struct iwl_priv *priv,
719                                 int txq_id, u32 index)
720 {
721         iwl_write_direct32(priv, HBUS_TARG_WRPTR,
722                         (index & 0xff) | (txq_id << 8));
723         iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(txq_id), index);
724 }
725
726 static void iwl5000_tx_queue_set_status(struct iwl_priv *priv,
727                                         struct iwl_tx_queue *txq,
728                                         int tx_fifo_id, int scd_retry)
729 {
730         int txq_id = txq->q.id;
731         int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0;
732
733         iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id),
734                         (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
735                         (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) |
736                         (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) |
737                         IWL50_SCD_QUEUE_STTS_REG_MSK);
738
739         txq->sched_retry = scd_retry;
740
741         IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
742                        active ? "Activate" : "Deactivate",
743                        scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
744 }
745
746 static int iwl5000_send_wimax_coex(struct iwl_priv *priv)
747 {
748         struct iwl_wimax_coex_cmd coex_cmd;
749
750         memset(&coex_cmd, 0, sizeof(coex_cmd));
751
752         return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD,
753                                 sizeof(coex_cmd), &coex_cmd);
754 }
755
756 static int iwl5000_alive_notify(struct iwl_priv *priv)
757 {
758         u32 a;
759         int i = 0;
760         unsigned long flags;
761         int ret;
762
763         spin_lock_irqsave(&priv->lock, flags);
764
765         ret = iwl_grab_nic_access(priv);
766         if (ret) {
767                 spin_unlock_irqrestore(&priv->lock, flags);
768                 return ret;
769         }
770
771         priv->scd_base_addr = iwl_read_prph(priv, IWL50_SCD_SRAM_BASE_ADDR);
772         a = priv->scd_base_addr + IWL50_SCD_CONTEXT_DATA_OFFSET;
773         for (; a < priv->scd_base_addr + IWL50_SCD_TX_STTS_BITMAP_OFFSET;
774                 a += 4)
775                 iwl_write_targ_mem(priv, a, 0);
776         for (; a < priv->scd_base_addr + IWL50_SCD_TRANSLATE_TBL_OFFSET;
777                 a += 4)
778                 iwl_write_targ_mem(priv, a, 0);
779         for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
780                 iwl_write_targ_mem(priv, a, 0);
781
782         iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR,
783                 (priv->shared_phys +
784                  offsetof(struct iwl5000_shared, queues_byte_cnt_tbls)) >> 10);
785         iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL,
786                 IWL50_SCD_QUEUECHAIN_SEL_ALL(
787                         priv->hw_params.max_txq_num));
788         iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0);
789
790         /* initiate the queues */
791         for (i = 0; i < priv->hw_params.max_txq_num; i++) {
792                 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(i), 0);
793                 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
794                 iwl_write_targ_mem(priv, priv->scd_base_addr +
795                                 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
796                 iwl_write_targ_mem(priv, priv->scd_base_addr +
797                                 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i) +
798                                 sizeof(u32),
799                                 ((SCD_WIN_SIZE <<
800                                 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
801                                 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
802                                 ((SCD_FRAME_LIMIT <<
803                                 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
804                                 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
805         }
806
807         iwl_write_prph(priv, IWL50_SCD_INTERRUPT_MASK,
808                         IWL_MASK(0, priv->hw_params.max_txq_num));
809
810         /* Activate all Tx DMA/FIFO channels */
811         priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
812
813         iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
814         /* map qos queues to fifos one-to-one */
815         for (i = 0; i < ARRAY_SIZE(iwl5000_default_queue_to_tx_fifo); i++) {
816                 int ac = iwl5000_default_queue_to_tx_fifo[i];
817                 iwl_txq_ctx_activate(priv, i);
818                 iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
819         }
820         /* TODO - need to initialize those FIFOs inside the loop above,
821          * not only mark them as active */
822         iwl_txq_ctx_activate(priv, 4);
823         iwl_txq_ctx_activate(priv, 7);
824         iwl_txq_ctx_activate(priv, 8);
825         iwl_txq_ctx_activate(priv, 9);
826
827         iwl_release_nic_access(priv);
828         spin_unlock_irqrestore(&priv->lock, flags);
829
830
831         iwl5000_send_wimax_coex(priv);
832
833         iwl5000_send_Xtal_calib(priv);
834
835         if (priv->ucode_type == UCODE_RT)
836                 iwl5000_send_calib_results(priv);
837
838         return 0;
839 }
840
841 static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
842 {
843         if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
844             (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
845                 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
846                           IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES);
847                 return -EINVAL;
848         }
849
850         priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
851         priv->hw_params.first_ampdu_q = IWL50_FIRST_AMPDU_QUEUE;
852         priv->hw_params.max_stations = IWL5000_STATION_COUNT;
853         priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
854         priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE;
855         priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE;
856         priv->hw_params.max_bsm_size = 0;
857         priv->hw_params.fat_channel =  BIT(IEEE80211_BAND_2GHZ) |
858                                         BIT(IEEE80211_BAND_5GHZ);
859         priv->hw_params.sens = &iwl5000_sensitivity;
860
861         switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
862         case CSR_HW_REV_TYPE_5100:
863         case CSR_HW_REV_TYPE_5150:
864                 priv->hw_params.tx_chains_num = 1;
865                 priv->hw_params.rx_chains_num = 2;
866                 /* FIXME: move to ANT_A, ANT_B, ANT_C enum */
867                 priv->hw_params.valid_tx_ant = ANT_A;
868                 priv->hw_params.valid_rx_ant = ANT_AB;
869                 break;
870         case CSR_HW_REV_TYPE_5300:
871         case CSR_HW_REV_TYPE_5350:
872                 priv->hw_params.tx_chains_num = 3;
873                 priv->hw_params.rx_chains_num = 3;
874                 priv->hw_params.valid_tx_ant = ANT_ABC;
875                 priv->hw_params.valid_rx_ant = ANT_ABC;
876                 break;
877         }
878
879         switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
880         case CSR_HW_REV_TYPE_5100:
881         case CSR_HW_REV_TYPE_5300:
882                 /* 5X00 wants in Celsius */
883                 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
884                 break;
885         case CSR_HW_REV_TYPE_5150:
886         case CSR_HW_REV_TYPE_5350:
887                 /* 5X50 wants in Kelvin */
888                 priv->hw_params.ct_kill_threshold =
889                                 CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
890                 break;
891         }
892
893         return 0;
894 }
895
896 static int iwl5000_alloc_shared_mem(struct iwl_priv *priv)
897 {
898         priv->shared_virt = pci_alloc_consistent(priv->pci_dev,
899                                         sizeof(struct iwl5000_shared),
900                                         &priv->shared_phys);
901         if (!priv->shared_virt)
902                 return -ENOMEM;
903
904         memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared));
905
906         priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed);
907
908         return 0;
909 }
910
911 static void iwl5000_free_shared_mem(struct iwl_priv *priv)
912 {
913         if (priv->shared_virt)
914                 pci_free_consistent(priv->pci_dev,
915                                     sizeof(struct iwl5000_shared),
916                                     priv->shared_virt,
917                                     priv->shared_phys);
918 }
919
920 static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv)
921 {
922         struct iwl5000_shared *s = priv->shared_virt;
923         return le32_to_cpu(s->rb_closed) & 0xFFF;
924 }
925
926 /**
927  * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
928  */
929 static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
930                                             struct iwl_tx_queue *txq,
931                                             u16 byte_cnt)
932 {
933         struct iwl5000_shared *shared_data = priv->shared_virt;
934         int txq_id = txq->q.id;
935         u8 sec_ctl = 0;
936         u8 sta = 0;
937         int len;
938
939         len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
940
941         if (txq_id != IWL_CMD_QUEUE_NUM) {
942                 sta = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id;
943                 sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl;
944
945                 switch (sec_ctl & TX_CMD_SEC_MSK) {
946                 case TX_CMD_SEC_CCM:
947                         len += CCMP_MIC_LEN;
948                         break;
949                 case TX_CMD_SEC_TKIP:
950                         len += TKIP_ICV_LEN;
951                         break;
952                 case TX_CMD_SEC_WEP:
953                         len += WEP_IV_LEN + WEP_ICV_LEN;
954                         break;
955                 }
956         }
957
958         IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
959                        tfd_offset[txq->q.write_ptr], byte_cnt, len);
960
961         IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
962                        tfd_offset[txq->q.write_ptr], sta_id, sta);
963
964         if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) {
965                 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
966                         tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr],
967                         byte_cnt, len);
968                 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
969                         tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr],
970                         sta_id, sta);
971         }
972 }
973
974 static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
975                                            struct iwl_tx_queue *txq)
976 {
977         int txq_id = txq->q.id;
978         struct iwl5000_shared *shared_data = priv->shared_virt;
979         u8 sta = 0;
980
981         if (txq_id != IWL_CMD_QUEUE_NUM)
982                 sta = txq->cmd[txq->q.read_ptr]->cmd.tx.sta_id;
983
984         shared_data->queues_byte_cnt_tbls[txq_id].tfd_offset[txq->q.read_ptr].
985                                         val = cpu_to_le16(1 | (sta << 12));
986
987         if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) {
988                 shared_data->queues_byte_cnt_tbls[txq_id].
989                         tfd_offset[IWL50_QUEUE_SIZE + txq->q.read_ptr].
990                                 val = cpu_to_le16(1 | (sta << 12));
991         }
992 }
993
994 static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
995                                         u16 txq_id)
996 {
997         u32 tbl_dw_addr;
998         u32 tbl_dw;
999         u16 scd_q2ratid;
1000
1001         scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
1002
1003         tbl_dw_addr = priv->scd_base_addr +
1004                         IWL50_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
1005
1006         tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr);
1007
1008         if (txq_id & 0x1)
1009                 tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
1010         else
1011                 tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
1012
1013         iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw);
1014
1015         return 0;
1016 }
1017 static void iwl5000_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id)
1018 {
1019         /* Simply stop the queue, but don't change any configuration;
1020          * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
1021         iwl_write_prph(priv,
1022                 IWL50_SCD_QUEUE_STATUS_BITS(txq_id),
1023                 (0 << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
1024                 (1 << IWL50_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
1025 }
1026
1027 static int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
1028                                   int tx_fifo, int sta_id, int tid, u16 ssn_idx)
1029 {
1030         unsigned long flags;
1031         int ret;
1032         u16 ra_tid;
1033
1034         if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
1035             (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) {
1036                 IWL_WARNING("queue number out of range: %d, must be %d to %d\n",
1037                         txq_id, IWL50_FIRST_AMPDU_QUEUE,
1038                         IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1);
1039                 return -EINVAL;
1040         }
1041
1042         ra_tid = BUILD_RAxTID(sta_id, tid);
1043
1044         /* Modify device's station table to Tx this TID */
1045         iwl_sta_modify_enable_tid_tx(priv, sta_id, tid);
1046
1047         spin_lock_irqsave(&priv->lock, flags);
1048         ret = iwl_grab_nic_access(priv);
1049         if (ret) {
1050                 spin_unlock_irqrestore(&priv->lock, flags);
1051                 return ret;
1052         }
1053
1054         /* Stop this Tx queue before configuring it */
1055         iwl5000_tx_queue_stop_scheduler(priv, txq_id);
1056
1057         /* Map receiver-address / traffic-ID to this queue */
1058         iwl5000_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
1059
1060         /* Set this queue as a chain-building queue */
1061         iwl_set_bits_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, (1<<txq_id));
1062
1063         /* enable aggregations for the queue */
1064         iwl_set_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1<<txq_id));
1065
1066         /* Place first TFD at index corresponding to start sequence number.
1067          * Assumes that ssn_idx is valid (!= 0xFFF) */
1068         priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
1069         priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
1070         iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx);
1071
1072         /* Set up Tx window size and frame limit for this queue */
1073         iwl_write_targ_mem(priv, priv->scd_base_addr +
1074                         IWL50_SCD_CONTEXT_QUEUE_OFFSET(txq_id) +
1075                         sizeof(u32),
1076                         ((SCD_WIN_SIZE <<
1077                         IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
1078                         IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
1079                         ((SCD_FRAME_LIMIT <<
1080                         IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
1081                         IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
1082
1083         iwl_set_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id));
1084
1085         /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
1086         iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
1087
1088         iwl_release_nic_access(priv);
1089         spin_unlock_irqrestore(&priv->lock, flags);
1090
1091         return 0;
1092 }
1093
1094 static int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
1095                                    u16 ssn_idx, u8 tx_fifo)
1096 {
1097         int ret;
1098
1099         if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
1100             (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) {
1101                 IWL_WARNING("queue number out of range: %d, must be %d to %d\n",
1102                         txq_id, IWL50_FIRST_AMPDU_QUEUE,
1103                         IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1);
1104                 return -EINVAL;
1105         }
1106
1107         ret = iwl_grab_nic_access(priv);
1108         if (ret)
1109                 return ret;
1110
1111         iwl5000_tx_queue_stop_scheduler(priv, txq_id);
1112
1113         iwl_clear_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1 << txq_id));
1114
1115         priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
1116         priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
1117         /* supposes that ssn_idx is valid (!= 0xFFF) */
1118         iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx);
1119
1120         iwl_clear_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id));
1121         iwl_txq_ctx_deactivate(priv, txq_id);
1122         iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
1123
1124         iwl_release_nic_access(priv);
1125
1126         return 0;
1127 }
1128
1129 static u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
1130 {
1131         u16 size = (u16)sizeof(struct iwl_addsta_cmd);
1132         memcpy(data, cmd, size);
1133         return size;
1134 }
1135
1136
1137 /*
1138  * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask
1139  * must be called under priv->lock and mac access
1140  */
1141 static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask)
1142 {
1143         iwl_write_prph(priv, IWL50_SCD_TXFACT, mask);
1144 }
1145
1146
1147 static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp)
1148 {
1149         return le32_to_cpup((__le32 *)&tx_resp->status +
1150                             tx_resp->frame_count) & MAX_SN;
1151 }
1152
1153 static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv,
1154                                       struct iwl_ht_agg *agg,
1155                                       struct iwl5000_tx_resp *tx_resp,
1156                                       int txq_id, u16 start_idx)
1157 {
1158         u16 status;
1159         struct agg_tx_status *frame_status = &tx_resp->status;
1160         struct ieee80211_tx_info *info = NULL;
1161         struct ieee80211_hdr *hdr = NULL;
1162         u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1163         int i, sh, idx;
1164         u16 seq;
1165
1166         if (agg->wait_for_ba)
1167                 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
1168
1169         agg->frame_count = tx_resp->frame_count;
1170         agg->start_idx = start_idx;
1171         agg->rate_n_flags = rate_n_flags;
1172         agg->bitmap = 0;
1173
1174         /* # frames attempted by Tx command */
1175         if (agg->frame_count == 1) {
1176                 /* Only one frame was attempted; no block-ack will arrive */
1177                 status = le16_to_cpu(frame_status[0].status);
1178                 idx = start_idx;
1179
1180                 /* FIXME: code repetition */
1181                 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
1182                                    agg->frame_count, agg->start_idx, idx);
1183
1184                 info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
1185                 info->status.retry_count = tx_resp->failure_frame;
1186                 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1187                 info->flags |= iwl_is_tx_success(status)?
1188                         IEEE80211_TX_STAT_ACK : 0;
1189                 iwl_hwrate_to_tx_control(priv, rate_n_flags, info);
1190
1191                 /* FIXME: code repetition end */
1192
1193                 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
1194                                     status & 0xff, tx_resp->failure_frame);
1195                 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n", rate_n_flags);
1196
1197                 agg->wait_for_ba = 0;
1198         } else {
1199                 /* Two or more frames were attempted; expect block-ack */
1200                 u64 bitmap = 0;
1201                 int start = agg->start_idx;
1202
1203                 /* Construct bit-map of pending frames within Tx window */
1204                 for (i = 0; i < agg->frame_count; i++) {
1205                         u16 sc;
1206                         status = le16_to_cpu(frame_status[i].status);
1207                         seq  = le16_to_cpu(frame_status[i].sequence);
1208                         idx = SEQ_TO_INDEX(seq);
1209                         txq_id = SEQ_TO_QUEUE(seq);
1210
1211                         if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
1212                                       AGG_TX_STATE_ABORT_MSK))
1213                                 continue;
1214
1215                         IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
1216                                            agg->frame_count, txq_id, idx);
1217
1218                         hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx);
1219
1220                         sc = le16_to_cpu(hdr->seq_ctrl);
1221                         if (idx != (SEQ_TO_SN(sc) & 0xff)) {
1222                                 IWL_ERROR("BUG_ON idx doesn't match seq control"
1223                                           " idx=%d, seq_idx=%d, seq=%d\n",
1224                                           idx, SEQ_TO_SN(sc),
1225                                           hdr->seq_ctrl);
1226                                 return -1;
1227                         }
1228
1229                         IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
1230                                            i, idx, SEQ_TO_SN(sc));
1231
1232                         sh = idx - start;
1233                         if (sh > 64) {
1234                                 sh = (start - idx) + 0xff;
1235                                 bitmap = bitmap << sh;
1236                                 sh = 0;
1237                                 start = idx;
1238                         } else if (sh < -64)
1239                                 sh  = 0xff - (start - idx);
1240                         else if (sh < 0) {
1241                                 sh = start - idx;
1242                                 start = idx;
1243                                 bitmap = bitmap << sh;
1244                                 sh = 0;
1245                         }
1246                         bitmap |= 1ULL << sh;
1247                         IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%llx\n",
1248                                            start, (unsigned long long)bitmap);
1249                 }
1250
1251                 agg->bitmap = bitmap;
1252                 agg->start_idx = start;
1253                 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
1254                                    agg->frame_count, agg->start_idx,
1255                                    (unsigned long long)agg->bitmap);
1256
1257                 if (bitmap)
1258                         agg->wait_for_ba = 1;
1259         }
1260         return 0;
1261 }
1262
1263 static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
1264                                 struct iwl_rx_mem_buffer *rxb)
1265 {
1266         struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1267         u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1268         int txq_id = SEQ_TO_QUEUE(sequence);
1269         int index = SEQ_TO_INDEX(sequence);
1270         struct iwl_tx_queue *txq = &priv->txq[txq_id];
1271         struct ieee80211_tx_info *info;
1272         struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
1273         u32  status = le16_to_cpu(tx_resp->status.status);
1274         int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION;
1275         struct ieee80211_hdr *hdr;
1276         u8 *qc = NULL;
1277
1278         if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
1279                 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
1280                           "is out of range [0-%d] %d %d\n", txq_id,
1281                           index, txq->q.n_bd, txq->q.write_ptr,
1282                           txq->q.read_ptr);
1283                 return;
1284         }
1285
1286         info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
1287         memset(&info->status, 0, sizeof(info->status));
1288
1289         hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
1290         if (ieee80211_is_data_qos(hdr->frame_control)) {
1291                 qc = ieee80211_get_qos_ctl(hdr);
1292                 tid = qc[0] & 0xf;
1293         }
1294
1295         sta_id = iwl_get_ra_sta_id(priv, hdr);
1296         if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
1297                 IWL_ERROR("Station not known\n");
1298                 return;
1299         }
1300
1301         if (txq->sched_retry) {
1302                 const u32 scd_ssn = iwl5000_get_scd_ssn(tx_resp);
1303                 struct iwl_ht_agg *agg = NULL;
1304
1305                 if (!qc)
1306                         return;
1307
1308                 agg = &priv->stations[sta_id].tid[tid].agg;
1309
1310                 iwl5000_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
1311
1312                 /* check if BAR is needed */
1313                 if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status))
1314                         info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
1315
1316                 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
1317                         int freed, ampdu_q;
1318                         index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
1319                         IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
1320                                            "%d index %d\n", scd_ssn , index);
1321                         freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1322                         priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1323
1324                         if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
1325                             txq_id >= 0 && priv->mac80211_registered &&
1326                             agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) {
1327                                 /* calculate mac80211 ampdu sw queue to wake */
1328                                 ampdu_q = txq_id - IWL50_FIRST_AMPDU_QUEUE +
1329                                           priv->hw->queues;
1330                                 if (agg->state == IWL_AGG_OFF)
1331                                         ieee80211_wake_queue(priv->hw, txq_id);
1332                                 else
1333                                         ieee80211_wake_queue(priv->hw, ampdu_q);
1334                         }
1335                         iwl_txq_check_empty(priv, sta_id, tid, txq_id);
1336                 }
1337         } else {
1338                 info->status.retry_count = tx_resp->failure_frame;
1339                 info->flags =
1340                         iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0;
1341                 iwl_hwrate_to_tx_control(priv,
1342                                         le32_to_cpu(tx_resp->rate_n_flags),
1343                                         info);
1344
1345                 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags "
1346                              "0x%x retries %d\n", txq_id,
1347                                 iwl_get_tx_fail_reason(status),
1348                                 status, le32_to_cpu(tx_resp->rate_n_flags),
1349                                 tx_resp->failure_frame);
1350
1351                 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
1352                 if (index != -1) {
1353                     int freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1354                     if (tid != MAX_TID_COUNT)
1355                         priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1356                     if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
1357                         (txq_id >= 0) && priv->mac80211_registered)
1358                         ieee80211_wake_queue(priv->hw, txq_id);
1359                     if (tid != MAX_TID_COUNT)
1360                         iwl_txq_check_empty(priv, sta_id, tid, txq_id);
1361                 }
1362         }
1363
1364         if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
1365                 IWL_ERROR("TODO:  Implement Tx ABORT REQUIRED!!!\n");
1366 }
1367
1368 /* Currently 5000 is the supperset of everything */
1369 static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len)
1370 {
1371         return len;
1372 }
1373
1374 static void iwl5000_setup_deferred_work(struct iwl_priv *priv)
1375 {
1376         /* in 5000 the tx power calibration is done in uCode */
1377         priv->disable_tx_power_cal = 1;
1378 }
1379
1380 static void iwl5000_rx_handler_setup(struct iwl_priv *priv)
1381 {
1382         /* init calibration handlers */
1383         priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
1384                                         iwl5000_rx_calib_result;
1385         priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] =
1386                                         iwl5000_rx_calib_complete;
1387         priv->rx_handlers[REPLY_TX] = iwl5000_rx_reply_tx;
1388 }
1389
1390
1391 static int iwl5000_hw_valid_rtc_data_addr(u32 addr)
1392 {
1393         return (addr >= RTC_DATA_LOWER_BOUND) &&
1394                 (addr < IWL50_RTC_DATA_UPPER_BOUND);
1395 }
1396
1397 static int iwl5000_send_rxon_assoc(struct iwl_priv *priv)
1398 {
1399         int ret = 0;
1400         struct iwl5000_rxon_assoc_cmd rxon_assoc;
1401         const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
1402         const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
1403
1404         if ((rxon1->flags == rxon2->flags) &&
1405             (rxon1->filter_flags == rxon2->filter_flags) &&
1406             (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1407             (rxon1->ofdm_ht_single_stream_basic_rates ==
1408              rxon2->ofdm_ht_single_stream_basic_rates) &&
1409             (rxon1->ofdm_ht_dual_stream_basic_rates ==
1410              rxon2->ofdm_ht_dual_stream_basic_rates) &&
1411             (rxon1->ofdm_ht_triple_stream_basic_rates ==
1412              rxon2->ofdm_ht_triple_stream_basic_rates) &&
1413             (rxon1->acquisition_data == rxon2->acquisition_data) &&
1414             (rxon1->rx_chain == rxon2->rx_chain) &&
1415             (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1416                 IWL_DEBUG_INFO("Using current RXON_ASSOC.  Not resending.\n");
1417                 return 0;
1418         }
1419
1420         rxon_assoc.flags = priv->staging_rxon.flags;
1421         rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
1422         rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
1423         rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
1424         rxon_assoc.reserved1 = 0;
1425         rxon_assoc.reserved2 = 0;
1426         rxon_assoc.reserved3 = 0;
1427         rxon_assoc.ofdm_ht_single_stream_basic_rates =
1428             priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
1429         rxon_assoc.ofdm_ht_dual_stream_basic_rates =
1430             priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
1431         rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
1432         rxon_assoc.ofdm_ht_triple_stream_basic_rates =
1433                  priv->staging_rxon.ofdm_ht_triple_stream_basic_rates;
1434         rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data;
1435
1436         ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
1437                                      sizeof(rxon_assoc), &rxon_assoc, NULL);
1438         if (ret)
1439                 return ret;
1440
1441         return ret;
1442 }
1443 static int  iwl5000_send_tx_power(struct iwl_priv *priv)
1444 {
1445         struct iwl5000_tx_power_dbm_cmd tx_power_cmd;
1446
1447         /* half dBm need to multiply */
1448         tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);
1449         tx_power_cmd.flags = IWL50_TX_POWER_NO_CLOSED;
1450         tx_power_cmd.srv_chan_lmt = IWL50_TX_POWER_AUTO;
1451         return  iwl_send_cmd_pdu_async(priv, REPLY_TX_POWER_DBM_CMD,
1452                                        sizeof(tx_power_cmd), &tx_power_cmd,
1453                                        NULL);
1454 }
1455
1456 static void iwl5000_temperature(struct iwl_priv *priv)
1457 {
1458         /* store temperature from statistics (in Celsius) */
1459         priv->temperature = le32_to_cpu(priv->statistics.general.temperature);
1460 }
1461
1462 static struct iwl_hcmd_ops iwl5000_hcmd = {
1463         .rxon_assoc = iwl5000_send_rxon_assoc,
1464 };
1465
1466 static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
1467         .get_hcmd_size = iwl5000_get_hcmd_size,
1468         .build_addsta_hcmd = iwl5000_build_addsta_hcmd,
1469         .gain_computation = iwl5000_gain_computation,
1470         .chain_noise_reset = iwl5000_chain_noise_reset,
1471         .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag,
1472 };
1473
1474 static struct iwl_lib_ops iwl5000_lib = {
1475         .set_hw_params = iwl5000_hw_set_hw_params,
1476         .alloc_shared_mem = iwl5000_alloc_shared_mem,
1477         .free_shared_mem = iwl5000_free_shared_mem,
1478         .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx,
1479         .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
1480         .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
1481         .txq_set_sched = iwl5000_txq_set_sched,
1482         .txq_agg_enable = iwl5000_txq_agg_enable,
1483         .txq_agg_disable = iwl5000_txq_agg_disable,
1484         .rx_handler_setup = iwl5000_rx_handler_setup,
1485         .setup_deferred_work = iwl5000_setup_deferred_work,
1486         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
1487         .load_ucode = iwl5000_load_ucode,
1488         .init_alive_start = iwl5000_init_alive_start,
1489         .alive_notify = iwl5000_alive_notify,
1490         .send_tx_power = iwl5000_send_tx_power,
1491         .temperature = iwl5000_temperature,
1492         .update_chain_flags = iwl4965_update_chain_flags,
1493         .apm_ops = {
1494                 .init = iwl5000_apm_init,
1495                 .reset = iwl5000_apm_reset,
1496                 .stop = iwl5000_apm_stop,
1497                 .config = iwl5000_nic_config,
1498                 .set_pwr_src = iwl4965_set_pwr_src,
1499         },
1500         .eeprom_ops = {
1501                 .regulatory_bands = {
1502                         EEPROM_5000_REG_BAND_1_CHANNELS,
1503                         EEPROM_5000_REG_BAND_2_CHANNELS,
1504                         EEPROM_5000_REG_BAND_3_CHANNELS,
1505                         EEPROM_5000_REG_BAND_4_CHANNELS,
1506                         EEPROM_5000_REG_BAND_5_CHANNELS,
1507                         EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
1508                         EEPROM_5000_REG_BAND_52_FAT_CHANNELS
1509                 },
1510                 .verify_signature  = iwlcore_eeprom_verify_signature,
1511                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
1512                 .release_semaphore = iwlcore_eeprom_release_semaphore,
1513                 .check_version  = iwl5000_eeprom_check_version,
1514                 .query_addr = iwl5000_eeprom_query_addr,
1515         },
1516 };
1517
1518 static struct iwl_ops iwl5000_ops = {
1519         .lib = &iwl5000_lib,
1520         .hcmd = &iwl5000_hcmd,
1521         .utils = &iwl5000_hcmd_utils,
1522 };
1523
1524 static struct iwl_mod_params iwl50_mod_params = {
1525         .num_of_queues = IWL50_NUM_QUEUES,
1526         .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
1527         .enable_qos = 1,
1528         .amsdu_size_8K = 1,
1529         .restart_fw = 1,
1530         /* the rest are 0 by default */
1531 };
1532
1533
1534 struct iwl_cfg iwl5300_agn_cfg = {
1535         .name = "5300AGN",
1536         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1537         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1538         .ops = &iwl5000_ops,
1539         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1540         .mod_params = &iwl50_mod_params,
1541 };
1542
1543 struct iwl_cfg iwl5100_bg_cfg = {
1544         .name = "5100BG",
1545         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1546         .sku = IWL_SKU_G,
1547         .ops = &iwl5000_ops,
1548         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1549         .mod_params = &iwl50_mod_params,
1550 };
1551
1552 struct iwl_cfg iwl5100_abg_cfg = {
1553         .name = "5100ABG",
1554         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1555         .sku = IWL_SKU_A|IWL_SKU_G,
1556         .ops = &iwl5000_ops,
1557         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1558         .mod_params = &iwl50_mod_params,
1559 };
1560
1561 struct iwl_cfg iwl5100_agn_cfg = {
1562         .name = "5100AGN",
1563         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1564         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1565         .ops = &iwl5000_ops,
1566         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1567         .mod_params = &iwl50_mod_params,
1568 };
1569
1570 struct iwl_cfg iwl5350_agn_cfg = {
1571         .name = "5350AGN",
1572         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1573         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1574         .ops = &iwl5000_ops,
1575         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1576         .mod_params = &iwl50_mod_params,
1577 };
1578
1579 module_param_named(disable50, iwl50_mod_params.disable, int, 0444);
1580 MODULE_PARM_DESC(disable50,
1581                   "manually disable the 50XX radio (default 0 [radio on])");
1582 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
1583 MODULE_PARM_DESC(swcrypto50,
1584                   "using software crypto engine (default 0 [hardware])\n");
1585 module_param_named(debug50, iwl50_mod_params.debug, int, 0444);
1586 MODULE_PARM_DESC(debug50, "50XX debug output mask");
1587 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
1588 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
1589 module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
1590 MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
1591 module_param_named(11n_disable50, iwl50_mod_params.disable_11n, int, 0444);
1592 MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality");
1593 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
1594 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
1595 module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444);
1596 MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error");