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iwlwifi: fix up command sending
[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / iwlwifi / iwl-3945.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/init.h>
30 #include <linux/pci.h>
31 #include <linux/dma-mapping.h>
32 #include <linux/delay.h>
33 #include <linux/skbuff.h>
34 #include <linux/netdevice.h>
35 #include <linux/wireless.h>
36 #include <linux/firmware.h>
37 #include <linux/etherdevice.h>
38 #include <asm/unaligned.h>
39 #include <net/mac80211.h>
40
41 #include "iwl-fh.h"
42 #include "iwl-3945-fh.h"
43 #include "iwl-commands.h"
44 #include "iwl-sta.h"
45 #include "iwl-3945.h"
46 #include "iwl-eeprom.h"
47 #include "iwl-helpers.h"
48 #include "iwl-core.h"
49 #include "iwl-agn-rs.h"
50
51 #define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
52 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
53 IWL_RATE_##r##M_IEEE, \
54 IWL_RATE_##ip##M_INDEX, \
55 IWL_RATE_##in##M_INDEX, \
56 IWL_RATE_##rp##M_INDEX, \
57 IWL_RATE_##rn##M_INDEX, \
58 IWL_RATE_##pp##M_INDEX, \
59 IWL_RATE_##np##M_INDEX, \
60 IWL_RATE_##r##M_INDEX_TABLE, \
61 IWL_RATE_##ip##M_INDEX_TABLE }
62
63 /*
64 * Parameter order:
65 * rate, prev rate, next rate, prev tgg rate, next tgg rate
66 *
67 * If there isn't a valid next or previous rate then INV is used which
68 * maps to IWL_RATE_INVALID
69 *
70 */
71 const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = {
72 IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
73 IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
74 IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
75 IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
76 IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
77 IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
78 IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
79 IWL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */
80 IWL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */
81 IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
82 IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
83 IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
84 };
85
86 /* 1 = enable the iwl3945_disable_events() function */
87 #define IWL_EVT_DISABLE (0)
88 #define IWL_EVT_DISABLE_SIZE (1532/32)
89
90 /**
91 * iwl3945_disable_events - Disable selected events in uCode event log
92 *
93 * Disable an event by writing "1"s into "disable"
94 * bitmap in SRAM. Bit position corresponds to Event # (id/type).
95 * Default values of 0 enable uCode events to be logged.
96 * Use for only special debugging. This function is just a placeholder as-is,
97 * you'll need to provide the special bits! ...
98 * ... and set IWL_EVT_DISABLE to 1. */
99 void iwl3945_disable_events(struct iwl_priv *priv)
100 {
101 int i;
102 u32 base; /* SRAM address of event log header */
103 u32 disable_ptr; /* SRAM address of event-disable bitmap array */
104 u32 array_size; /* # of u32 entries in array */
105 u32 evt_disable[IWL_EVT_DISABLE_SIZE] = {
106 0x00000000, /* 31 - 0 Event id numbers */
107 0x00000000, /* 63 - 32 */
108 0x00000000, /* 95 - 64 */
109 0x00000000, /* 127 - 96 */
110 0x00000000, /* 159 - 128 */
111 0x00000000, /* 191 - 160 */
112 0x00000000, /* 223 - 192 */
113 0x00000000, /* 255 - 224 */
114 0x00000000, /* 287 - 256 */
115 0x00000000, /* 319 - 288 */
116 0x00000000, /* 351 - 320 */
117 0x00000000, /* 383 - 352 */
118 0x00000000, /* 415 - 384 */
119 0x00000000, /* 447 - 416 */
120 0x00000000, /* 479 - 448 */
121 0x00000000, /* 511 - 480 */
122 0x00000000, /* 543 - 512 */
123 0x00000000, /* 575 - 544 */
124 0x00000000, /* 607 - 576 */
125 0x00000000, /* 639 - 608 */
126 0x00000000, /* 671 - 640 */
127 0x00000000, /* 703 - 672 */
128 0x00000000, /* 735 - 704 */
129 0x00000000, /* 767 - 736 */
130 0x00000000, /* 799 - 768 */
131 0x00000000, /* 831 - 800 */
132 0x00000000, /* 863 - 832 */
133 0x00000000, /* 895 - 864 */
134 0x00000000, /* 927 - 896 */
135 0x00000000, /* 959 - 928 */
136 0x00000000, /* 991 - 960 */
137 0x00000000, /* 1023 - 992 */
138 0x00000000, /* 1055 - 1024 */
139 0x00000000, /* 1087 - 1056 */
140 0x00000000, /* 1119 - 1088 */
141 0x00000000, /* 1151 - 1120 */
142 0x00000000, /* 1183 - 1152 */
143 0x00000000, /* 1215 - 1184 */
144 0x00000000, /* 1247 - 1216 */
145 0x00000000, /* 1279 - 1248 */
146 0x00000000, /* 1311 - 1280 */
147 0x00000000, /* 1343 - 1312 */
148 0x00000000, /* 1375 - 1344 */
149 0x00000000, /* 1407 - 1376 */
150 0x00000000, /* 1439 - 1408 */
151 0x00000000, /* 1471 - 1440 */
152 0x00000000, /* 1503 - 1472 */
153 };
154
155 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
156 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
157 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
158 return;
159 }
160
161 disable_ptr = iwl_read_targ_mem(priv, base + (4 * sizeof(u32)));
162 array_size = iwl_read_targ_mem(priv, base + (5 * sizeof(u32)));
163
164 if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) {
165 IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n",
166 disable_ptr);
167 for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++)
168 iwl_write_targ_mem(priv,
169 disable_ptr + (i * sizeof(u32)),
170 evt_disable[i]);
171
172 } else {
173 IWL_DEBUG_INFO(priv, "Selected uCode log events may be disabled\n");
174 IWL_DEBUG_INFO(priv, " by writing \"1\"s into disable bitmap\n");
175 IWL_DEBUG_INFO(priv, " in SRAM at 0x%x, size %d u32s\n",
176 disable_ptr, array_size);
177 }
178
179 }
180
181 static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
182 {
183 int idx;
184
185 for (idx = 0; idx < IWL_RATE_COUNT; idx++)
186 if (iwl3945_rates[idx].plcp == plcp)
187 return idx;
188 return -1;
189 }
190
191 #ifdef CONFIG_IWLWIFI_DEBUG
192 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
193
194 static const char *iwl3945_get_tx_fail_reason(u32 status)
195 {
196 switch (status & TX_STATUS_MSK) {
197 case TX_STATUS_SUCCESS:
198 return "SUCCESS";
199 TX_STATUS_ENTRY(SHORT_LIMIT);
200 TX_STATUS_ENTRY(LONG_LIMIT);
201 TX_STATUS_ENTRY(FIFO_UNDERRUN);
202 TX_STATUS_ENTRY(MGMNT_ABORT);
203 TX_STATUS_ENTRY(NEXT_FRAG);
204 TX_STATUS_ENTRY(LIFE_EXPIRE);
205 TX_STATUS_ENTRY(DEST_PS);
206 TX_STATUS_ENTRY(ABORTED);
207 TX_STATUS_ENTRY(BT_RETRY);
208 TX_STATUS_ENTRY(STA_INVALID);
209 TX_STATUS_ENTRY(FRAG_DROPPED);
210 TX_STATUS_ENTRY(TID_DISABLE);
211 TX_STATUS_ENTRY(FRAME_FLUSHED);
212 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
213 TX_STATUS_ENTRY(TX_LOCKED);
214 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
215 }
216
217 return "UNKNOWN";
218 }
219 #else
220 static inline const char *iwl3945_get_tx_fail_reason(u32 status)
221 {
222 return "";
223 }
224 #endif
225
226 /*
227 * get ieee prev rate from rate scale table.
228 * for A and B mode we need to overright prev
229 * value
230 */
231 int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate)
232 {
233 int next_rate = iwl3945_get_prev_ieee_rate(rate);
234
235 switch (priv->band) {
236 case IEEE80211_BAND_5GHZ:
237 if (rate == IWL_RATE_12M_INDEX)
238 next_rate = IWL_RATE_9M_INDEX;
239 else if (rate == IWL_RATE_6M_INDEX)
240 next_rate = IWL_RATE_6M_INDEX;
241 break;
242 case IEEE80211_BAND_2GHZ:
243 if (!(priv->sta_supp_rates & IWL_OFDM_RATES_MASK) &&
244 iwl_is_associated(priv)) {
245 if (rate == IWL_RATE_11M_INDEX)
246 next_rate = IWL_RATE_5M_INDEX;
247 }
248 break;
249
250 default:
251 break;
252 }
253
254 return next_rate;
255 }
256
257
258 /**
259 * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
260 *
261 * When FW advances 'R' index, all entries between old and new 'R' index
262 * need to be reclaimed. As result, some free space forms. If there is
263 * enough free space (> low mark), wake the stack that feeds us.
264 */
265 static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
266 int txq_id, int index)
267 {
268 struct iwl_tx_queue *txq = &priv->txq[txq_id];
269 struct iwl_queue *q = &txq->q;
270 struct iwl_tx_info *tx_info;
271
272 BUG_ON(txq_id == IWL_CMD_QUEUE_NUM);
273
274 for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
275 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
276
277 tx_info = &txq->txb[txq->q.read_ptr];
278 ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb[0]);
279 tx_info->skb[0] = NULL;
280 priv->cfg->ops->lib->txq_free_tfd(priv, txq);
281 }
282
283 if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) &&
284 (txq_id != IWL_CMD_QUEUE_NUM) &&
285 priv->mac80211_registered)
286 iwl_wake_queue(priv, txq_id);
287 }
288
289 /**
290 * iwl3945_rx_reply_tx - Handle Tx response
291 */
292 static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
293 struct iwl_rx_mem_buffer *rxb)
294 {
295 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
296 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
297 int txq_id = SEQ_TO_QUEUE(sequence);
298 int index = SEQ_TO_INDEX(sequence);
299 struct iwl_tx_queue *txq = &priv->txq[txq_id];
300 struct ieee80211_tx_info *info;
301 struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
302 u32 status = le32_to_cpu(tx_resp->status);
303 int rate_idx;
304 int fail;
305
306 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
307 IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
308 "is out of range [0-%d] %d %d\n", txq_id,
309 index, txq->q.n_bd, txq->q.write_ptr,
310 txq->q.read_ptr);
311 return;
312 }
313
314 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
315 ieee80211_tx_info_clear_status(info);
316
317 /* Fill the MRR chain with some info about on-chip retransmissions */
318 rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate);
319 if (info->band == IEEE80211_BAND_5GHZ)
320 rate_idx -= IWL_FIRST_OFDM_RATE;
321
322 fail = tx_resp->failure_frame;
323
324 info->status.rates[0].idx = rate_idx;
325 info->status.rates[0].count = fail + 1; /* add final attempt */
326
327 /* tx_status->rts_retry_count = tx_resp->failure_rts; */
328 info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ?
329 IEEE80211_TX_STAT_ACK : 0;
330
331 IWL_DEBUG_TX(priv, "Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
332 txq_id, iwl3945_get_tx_fail_reason(status), status,
333 tx_resp->rate, tx_resp->failure_frame);
334
335 IWL_DEBUG_TX_REPLY(priv, "Tx queue reclaim %d\n", index);
336 iwl3945_tx_queue_reclaim(priv, txq_id, index);
337
338 if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
339 IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
340 }
341
342
343
344 /*****************************************************************************
345 *
346 * Intel PRO/Wireless 3945ABG/BG Network Connection
347 *
348 * RX handler implementations
349 *
350 *****************************************************************************/
351
352 void iwl3945_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
353 {
354 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
355 IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
356 (int)sizeof(struct iwl3945_notif_statistics),
357 le32_to_cpu(pkt->len));
358
359 memcpy(&priv->statistics_39, pkt->u.raw, sizeof(priv->statistics_39));
360
361 iwl3945_led_background(priv);
362
363 priv->last_statistics_time = jiffies;
364 }
365
366 /******************************************************************************
367 *
368 * Misc. internal state and helper functions
369 *
370 ******************************************************************************/
371 #ifdef CONFIG_IWLWIFI_DEBUG
372
373 /**
374 * iwl3945_report_frame - dump frame to syslog during debug sessions
375 *
376 * You may hack this function to show different aspects of received frames,
377 * including selective frame dumps.
378 * group100 parameter selects whether to show 1 out of 100 good frames.
379 */
380 static void _iwl3945_dbg_report_frame(struct iwl_priv *priv,
381 struct iwl_rx_packet *pkt,
382 struct ieee80211_hdr *header, int group100)
383 {
384 u32 to_us;
385 u32 print_summary = 0;
386 u32 print_dump = 0; /* set to 1 to dump all frames' contents */
387 u32 hundred = 0;
388 u32 dataframe = 0;
389 __le16 fc;
390 u16 seq_ctl;
391 u16 channel;
392 u16 phy_flags;
393 u16 length;
394 u16 status;
395 u16 bcn_tmr;
396 u32 tsf_low;
397 u64 tsf;
398 u8 rssi;
399 u8 agc;
400 u16 sig_avg;
401 u16 noise_diff;
402 struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
403 struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
404 struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
405 u8 *data = IWL_RX_DATA(pkt);
406
407 /* MAC header */
408 fc = header->frame_control;
409 seq_ctl = le16_to_cpu(header->seq_ctrl);
410
411 /* metadata */
412 channel = le16_to_cpu(rx_hdr->channel);
413 phy_flags = le16_to_cpu(rx_hdr->phy_flags);
414 length = le16_to_cpu(rx_hdr->len);
415
416 /* end-of-frame status and timestamp */
417 status = le32_to_cpu(rx_end->status);
418 bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
419 tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
420 tsf = le64_to_cpu(rx_end->timestamp);
421
422 /* signal statistics */
423 rssi = rx_stats->rssi;
424 agc = rx_stats->agc;
425 sig_avg = le16_to_cpu(rx_stats->sig_avg);
426 noise_diff = le16_to_cpu(rx_stats->noise_diff);
427
428 to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
429
430 /* if data frame is to us and all is good,
431 * (optionally) print summary for only 1 out of every 100 */
432 if (to_us && (fc & ~cpu_to_le16(IEEE80211_FCTL_PROTECTED)) ==
433 cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
434 dataframe = 1;
435 if (!group100)
436 print_summary = 1; /* print each frame */
437 else if (priv->framecnt_to_us < 100) {
438 priv->framecnt_to_us++;
439 print_summary = 0;
440 } else {
441 priv->framecnt_to_us = 0;
442 print_summary = 1;
443 hundred = 1;
444 }
445 } else {
446 /* print summary for all other frames */
447 print_summary = 1;
448 }
449
450 if (print_summary) {
451 char *title;
452 int rate;
453
454 if (hundred)
455 title = "100Frames";
456 else if (ieee80211_has_retry(fc))
457 title = "Retry";
458 else if (ieee80211_is_assoc_resp(fc))
459 title = "AscRsp";
460 else if (ieee80211_is_reassoc_resp(fc))
461 title = "RasRsp";
462 else if (ieee80211_is_probe_resp(fc)) {
463 title = "PrbRsp";
464 print_dump = 1; /* dump frame contents */
465 } else if (ieee80211_is_beacon(fc)) {
466 title = "Beacon";
467 print_dump = 1; /* dump frame contents */
468 } else if (ieee80211_is_atim(fc))
469 title = "ATIM";
470 else if (ieee80211_is_auth(fc))
471 title = "Auth";
472 else if (ieee80211_is_deauth(fc))
473 title = "DeAuth";
474 else if (ieee80211_is_disassoc(fc))
475 title = "DisAssoc";
476 else
477 title = "Frame";
478
479 rate = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate);
480 if (rate == -1)
481 rate = 0;
482 else
483 rate = iwl3945_rates[rate].ieee / 2;
484
485 /* print frame summary.
486 * MAC addresses show just the last byte (for brevity),
487 * but you can hack it to show more, if you'd like to. */
488 if (dataframe)
489 IWL_DEBUG_RX(priv, "%s: mhd=0x%04x, dst=0x%02x, "
490 "len=%u, rssi=%d, chnl=%d, rate=%d, \n",
491 title, le16_to_cpu(fc), header->addr1[5],
492 length, rssi, channel, rate);
493 else {
494 /* src/dst addresses assume managed mode */
495 IWL_DEBUG_RX(priv, "%s: 0x%04x, dst=0x%02x, "
496 "src=0x%02x, rssi=%u, tim=%lu usec, "
497 "phy=0x%02x, chnl=%d\n",
498 title, le16_to_cpu(fc), header->addr1[5],
499 header->addr3[5], rssi,
500 tsf_low - priv->scan_start_tsf,
501 phy_flags, channel);
502 }
503 }
504 if (print_dump)
505 iwl_print_hex_dump(IWL_DL_RX, data, length);
506 }
507
508 static void iwl3945_dbg_report_frame(struct iwl_priv *priv,
509 struct iwl_rx_packet *pkt,
510 struct ieee80211_hdr *header, int group100)
511 {
512 if (iwl_debug_level & IWL_DL_RX)
513 _iwl3945_dbg_report_frame(priv, pkt, header, group100);
514 }
515
516 #else
517 static inline void iwl3945_dbg_report_frame(struct iwl_priv *priv,
518 struct iwl_rx_packet *pkt,
519 struct ieee80211_hdr *header, int group100)
520 {
521 }
522 #endif
523
524 /* This is necessary only for a number of statistics, see the caller. */
525 static int iwl3945_is_network_packet(struct iwl_priv *priv,
526 struct ieee80211_hdr *header)
527 {
528 /* Filter incoming packets to determine if they are targeted toward
529 * this network, discarding packets coming from ourselves */
530 switch (priv->iw_mode) {
531 case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */
532 /* packets to our IBSS update information */
533 return !compare_ether_addr(header->addr3, priv->bssid);
534 case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
535 /* packets to our IBSS update information */
536 return !compare_ether_addr(header->addr2, priv->bssid);
537 default:
538 return 1;
539 }
540 }
541
542 static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
543 struct iwl_rx_mem_buffer *rxb,
544 struct ieee80211_rx_status *stats)
545 {
546 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
547 #ifdef CONFIG_IWLWIFI_LEDS
548 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
549 #endif
550 struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
551 struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
552 short len = le16_to_cpu(rx_hdr->len);
553
554 /* We received data from the HW, so stop the watchdog */
555 if (unlikely((len + IWL39_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
556 IWL_DEBUG_DROP(priv, "Corruption detected!\n");
557 return;
558 }
559
560 /* We only process data packets if the interface is open */
561 if (unlikely(!priv->is_open)) {
562 IWL_DEBUG_DROP_LIMIT(priv,
563 "Dropping packet while interface is not open.\n");
564 return;
565 }
566
567 skb_reserve(rxb->skb, (void *)rx_hdr->payload - (void *)pkt);
568 /* Set the size of the skb to the size of the frame */
569 skb_put(rxb->skb, le16_to_cpu(rx_hdr->len));
570
571 if (!iwl3945_mod_params.sw_crypto)
572 iwl_set_decrypted_flag(priv,
573 (struct ieee80211_hdr *)rxb->skb->data,
574 le32_to_cpu(rx_end->status), stats);
575
576 #ifdef CONFIG_IWLWIFI_LEDS
577 if (ieee80211_is_data(hdr->frame_control))
578 priv->rxtxpackets += len;
579 #endif
580 memcpy(IEEE80211_SKB_RXCB(rxb->skb), stats, sizeof(*stats));
581 ieee80211_rx_irqsafe(priv->hw, rxb->skb);
582 rxb->skb = NULL;
583 }
584
585 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
586
587 static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
588 struct iwl_rx_mem_buffer *rxb)
589 {
590 struct ieee80211_hdr *header;
591 struct ieee80211_rx_status rx_status;
592 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
593 struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
594 struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
595 struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
596 int snr;
597 u16 rx_stats_sig_avg = le16_to_cpu(rx_stats->sig_avg);
598 u16 rx_stats_noise_diff = le16_to_cpu(rx_stats->noise_diff);
599 u8 network_packet;
600
601 rx_status.flag = 0;
602 rx_status.mactime = le64_to_cpu(rx_end->timestamp);
603 rx_status.freq =
604 ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel));
605 rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
606 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
607
608 rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate);
609 if (rx_status.band == IEEE80211_BAND_5GHZ)
610 rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
611
612 rx_status.antenna = le16_to_cpu(rx_hdr->phy_flags &
613 RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
614
615 /* set the preamble flag if appropriate */
616 if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
617 rx_status.flag |= RX_FLAG_SHORTPRE;
618
619 if ((unlikely(rx_stats->phy_count > 20))) {
620 IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
621 rx_stats->phy_count);
622 return;
623 }
624
625 if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR)
626 || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
627 IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
628 return;
629 }
630
631
632
633 /* Convert 3945's rssi indicator to dBm */
634 rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET;
635
636 /* Set default noise value to -127 */
637 if (priv->last_rx_noise == 0)
638 priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
639
640 /* 3945 provides noise info for OFDM frames only.
641 * sig_avg and noise_diff are measured by the 3945's digital signal
642 * processor (DSP), and indicate linear levels of signal level and
643 * distortion/noise within the packet preamble after
644 * automatic gain control (AGC). sig_avg should stay fairly
645 * constant if the radio's AGC is working well.
646 * Since these values are linear (not dB or dBm), linear
647 * signal-to-noise ratio (SNR) is (sig_avg / noise_diff).
648 * Convert linear SNR to dB SNR, then subtract that from rssi dBm
649 * to obtain noise level in dBm.
650 * Calculate rx_status.signal (quality indicator in %) based on SNR. */
651 if (rx_stats_noise_diff) {
652 snr = rx_stats_sig_avg / rx_stats_noise_diff;
653 rx_status.noise = rx_status.signal -
654 iwl3945_calc_db_from_ratio(snr);
655 rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal,
656 rx_status.noise);
657
658 /* If noise info not available, calculate signal quality indicator (%)
659 * using just the dBm signal level. */
660 } else {
661 rx_status.noise = priv->last_rx_noise;
662 rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal, 0);
663 }
664
665
666 IWL_DEBUG_STATS(priv, "Rssi %d noise %d qual %d sig_avg %d noise_diff %d\n",
667 rx_status.signal, rx_status.noise, rx_status.qual,
668 rx_stats_sig_avg, rx_stats_noise_diff);
669
670 header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
671
672 network_packet = iwl3945_is_network_packet(priv, header);
673
674 IWL_DEBUG_STATS_LIMIT(priv, "[%c] %d RSSI:%d Signal:%u, Noise:%u, Rate:%u\n",
675 network_packet ? '*' : ' ',
676 le16_to_cpu(rx_hdr->channel),
677 rx_status.signal, rx_status.signal,
678 rx_status.noise, rx_status.rate_idx);
679
680 /* Set "1" to report good data frames in groups of 100 */
681 iwl3945_dbg_report_frame(priv, pkt, header, 1);
682
683 if (network_packet) {
684 priv->last_beacon_time = le32_to_cpu(rx_end->beacon_timestamp);
685 priv->last_tsf = le64_to_cpu(rx_end->timestamp);
686 priv->last_rx_rssi = rx_status.signal;
687 priv->last_rx_noise = rx_status.noise;
688 }
689
690 iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
691 }
692
693 int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
694 struct iwl_tx_queue *txq,
695 dma_addr_t addr, u16 len, u8 reset, u8 pad)
696 {
697 int count;
698 struct iwl_queue *q;
699 struct iwl3945_tfd *tfd, *tfd_tmp;
700
701 q = &txq->q;
702 tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
703 tfd = &tfd_tmp[q->write_ptr];
704
705 if (reset)
706 memset(tfd, 0, sizeof(*tfd));
707
708 count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
709
710 if ((count >= NUM_TFD_CHUNKS) || (count < 0)) {
711 IWL_ERR(priv, "Error can not send more than %d chunks\n",
712 NUM_TFD_CHUNKS);
713 return -EINVAL;
714 }
715
716 tfd->tbs[count].addr = cpu_to_le32(addr);
717 tfd->tbs[count].len = cpu_to_le32(len);
718
719 count++;
720
721 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) |
722 TFD_CTL_PAD_SET(pad));
723
724 return 0;
725 }
726
727 /**
728 * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
729 *
730 * Does NOT advance any indexes
731 */
732 void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
733 {
734 struct iwl3945_tfd *tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
735 int index = txq->q.read_ptr;
736 struct iwl3945_tfd *tfd = &tfd_tmp[index];
737 struct pci_dev *dev = priv->pci_dev;
738 int i;
739 int counter;
740
741 /* sanity check */
742 counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
743 if (counter > NUM_TFD_CHUNKS) {
744 IWL_ERR(priv, "Too many chunks: %i\n", counter);
745 /* @todo issue fatal error, it is quite serious situation */
746 return;
747 }
748
749 /* Unmap tx_cmd */
750 if (counter)
751 pci_unmap_single(dev,
752 pci_unmap_addr(&txq->meta[index], mapping),
753 pci_unmap_len(&txq->meta[index], len),
754 PCI_DMA_TODEVICE);
755
756 /* unmap chunks if any */
757
758 for (i = 1; i < counter; i++) {
759 pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
760 le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE);
761 if (txq->txb[txq->q.read_ptr].skb[0]) {
762 struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[0];
763 if (txq->txb[txq->q.read_ptr].skb[0]) {
764 /* Can be called from interrupt context */
765 dev_kfree_skb_any(skb);
766 txq->txb[txq->q.read_ptr].skb[0] = NULL;
767 }
768 }
769 }
770 return ;
771 }
772
773 /**
774 * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
775 *
776 */
777 void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
778 struct iwl_device_cmd *cmd,
779 struct ieee80211_tx_info *info,
780 struct ieee80211_hdr *hdr,
781 int sta_id, int tx_id)
782 {
783 u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value;
784 u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT - 1);
785 u16 rate_mask;
786 int rate;
787 u8 rts_retry_limit;
788 u8 data_retry_limit;
789 __le32 tx_flags;
790 __le16 fc = hdr->frame_control;
791 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
792
793 rate = iwl3945_rates[rate_index].plcp;
794 tx_flags = tx->tx_flags;
795
796 /* We need to figure out how to get the sta->supp_rates while
797 * in this running context */
798 rate_mask = IWL_RATES_MASK;
799
800 if (tx_id >= IWL_CMD_QUEUE_NUM)
801 rts_retry_limit = 3;
802 else
803 rts_retry_limit = 7;
804
805 if (ieee80211_is_probe_resp(fc)) {
806 data_retry_limit = 3;
807 if (data_retry_limit < rts_retry_limit)
808 rts_retry_limit = data_retry_limit;
809 } else
810 data_retry_limit = IWL_DEFAULT_TX_RETRY;
811
812 if (priv->data_retry_limit != -1)
813 data_retry_limit = priv->data_retry_limit;
814
815 if (ieee80211_is_mgmt(fc)) {
816 switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
817 case cpu_to_le16(IEEE80211_STYPE_AUTH):
818 case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
819 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
820 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
821 if (tx_flags & TX_CMD_FLG_RTS_MSK) {
822 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
823 tx_flags |= TX_CMD_FLG_CTS_MSK;
824 }
825 break;
826 default:
827 break;
828 }
829 }
830
831 tx->rts_retry_limit = rts_retry_limit;
832 tx->data_retry_limit = data_retry_limit;
833 tx->rate = rate;
834 tx->tx_flags = tx_flags;
835
836 /* OFDM */
837 tx->supp_rates[0] =
838 ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
839
840 /* CCK */
841 tx->supp_rates[1] = (rate_mask & 0xF);
842
843 IWL_DEBUG_RATE(priv, "Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
844 "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
845 tx->rate, le32_to_cpu(tx->tx_flags),
846 tx->supp_rates[1], tx->supp_rates[0]);
847 }
848
849 u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate, u8 flags)
850 {
851 unsigned long flags_spin;
852 struct iwl_station_entry *station;
853
854 if (sta_id == IWL_INVALID_STATION)
855 return IWL_INVALID_STATION;
856
857 spin_lock_irqsave(&priv->sta_lock, flags_spin);
858 station = &priv->stations[sta_id];
859
860 station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
861 station->sta.rate_n_flags = cpu_to_le16(tx_rate);
862 station->sta.mode = STA_CONTROL_MODIFY_MSK;
863
864 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
865
866 iwl_send_add_sta(priv, &station->sta, flags);
867 IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n",
868 sta_id, tx_rate);
869 return sta_id;
870 }
871
872 static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
873 {
874 if (src == IWL_PWR_SRC_VAUX) {
875 if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
876 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
877 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
878 ~APMG_PS_CTRL_MSK_PWR_SRC);
879
880 iwl_poll_bit(priv, CSR_GPIO_IN,
881 CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
882 CSR_GPIO_IN_BIT_AUX_POWER, 5000);
883 }
884 } else {
885 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
886 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
887 ~APMG_PS_CTRL_MSK_PWR_SRC);
888
889 iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
890 CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */
891 }
892
893 return 0;
894 }
895
896 static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
897 {
898 iwl_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->dma_addr);
899 iwl_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0), rxq->rb_stts_dma);
900 iwl_write_direct32(priv, FH39_RCSR_WPTR(0), 0);
901 iwl_write_direct32(priv, FH39_RCSR_CONFIG(0),
902 FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
903 FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
904 FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
905 FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
906 (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
907 FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
908 (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
909 FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
910
911 /* fake read to flush all prev I/O */
912 iwl_read_direct32(priv, FH39_RSSR_CTRL);
913
914 return 0;
915 }
916
917 static int iwl3945_tx_reset(struct iwl_priv *priv)
918 {
919
920 /* bypass mode */
921 iwl_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
922
923 /* RA 0 is active */
924 iwl_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
925
926 /* all 6 fifo are active */
927 iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
928
929 iwl_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
930 iwl_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
931 iwl_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
932 iwl_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
933
934 iwl_write_direct32(priv, FH39_TSSR_CBB_BASE,
935 priv->shared_phys);
936
937 iwl_write_direct32(priv, FH39_TSSR_MSG_CONFIG,
938 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
939 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
940 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
941 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
942 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
943 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
944 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
945
946
947 return 0;
948 }
949
950 /**
951 * iwl3945_txq_ctx_reset - Reset TX queue context
952 *
953 * Destroys all DMA structures and initialize them again
954 */
955 static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
956 {
957 int rc;
958 int txq_id, slots_num;
959
960 iwl3945_hw_txq_ctx_free(priv);
961
962 /* Tx CMD queue */
963 rc = iwl3945_tx_reset(priv);
964 if (rc)
965 goto error;
966
967 /* Tx queue(s) */
968 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
969 slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ?
970 TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
971 rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
972 txq_id);
973 if (rc) {
974 IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
975 goto error;
976 }
977 }
978
979 return rc;
980
981 error:
982 iwl3945_hw_txq_ctx_free(priv);
983 return rc;
984 }
985
986 static int iwl3945_apm_init(struct iwl_priv *priv)
987 {
988 int ret;
989
990 iwl_power_initialize(priv);
991
992 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
993 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
994
995 /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
996 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
997 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
998
999 /* set "initialization complete" bit to move adapter
1000 * D0U* --> D0A* state */
1001 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
1002
1003 ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
1004 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
1005 if (ret < 0) {
1006 IWL_DEBUG_INFO(priv, "Failed to init the card\n");
1007 goto out;
1008 }
1009
1010 /* enable DMA */
1011 iwl_write_prph(priv, APMG_CLK_CTRL_REG, APMG_CLK_VAL_DMA_CLK_RQT |
1012 APMG_CLK_VAL_BSM_CLK_RQT);
1013
1014 udelay(20);
1015
1016 /* disable L1-Active */
1017 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
1018 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
1019
1020 out:
1021 return ret;
1022 }
1023
1024 static void iwl3945_nic_config(struct iwl_priv *priv)
1025 {
1026 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1027 unsigned long flags;
1028 u8 rev_id = 0;
1029
1030 spin_lock_irqsave(&priv->lock, flags);
1031
1032 /* Determine HW type */
1033 pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id);
1034
1035 IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id);
1036
1037 if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
1038 IWL_DEBUG_INFO(priv, "RTP type \n");
1039 else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
1040 IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n");
1041 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1042 CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
1043 } else {
1044 IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n");
1045 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1046 CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
1047 }
1048
1049 if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
1050 IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n");
1051 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1052 CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
1053 } else
1054 IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n");
1055
1056 if ((eeprom->board_revision & 0xF0) == 0xD0) {
1057 IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
1058 eeprom->board_revision);
1059 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1060 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
1061 } else {
1062 IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
1063 eeprom->board_revision);
1064 iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
1065 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
1066 }
1067
1068 if (eeprom->almgor_m_version <= 1) {
1069 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1070 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
1071 IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n",
1072 eeprom->almgor_m_version);
1073 } else {
1074 IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n",
1075 eeprom->almgor_m_version);
1076 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1077 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
1078 }
1079 spin_unlock_irqrestore(&priv->lock, flags);
1080
1081 if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
1082 IWL_DEBUG_RF_KILL(priv, "SW RF KILL supported in EEPROM.\n");
1083
1084 if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
1085 IWL_DEBUG_RF_KILL(priv, "HW RF KILL supported in EEPROM.\n");
1086 }
1087
1088 int iwl3945_hw_nic_init(struct iwl_priv *priv)
1089 {
1090 int rc;
1091 unsigned long flags;
1092 struct iwl_rx_queue *rxq = &priv->rxq;
1093
1094 spin_lock_irqsave(&priv->lock, flags);
1095 priv->cfg->ops->lib->apm_ops.init(priv);
1096 spin_unlock_irqrestore(&priv->lock, flags);
1097
1098 rc = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
1099 if (rc)
1100 return rc;
1101
1102 priv->cfg->ops->lib->apm_ops.config(priv);
1103
1104 /* Allocate the RX queue, or reset if it is already allocated */
1105 if (!rxq->bd) {
1106 rc = iwl_rx_queue_alloc(priv);
1107 if (rc) {
1108 IWL_ERR(priv, "Unable to initialize Rx queue\n");
1109 return -ENOMEM;
1110 }
1111 } else
1112 iwl3945_rx_queue_reset(priv, rxq);
1113
1114 iwl3945_rx_replenish(priv);
1115
1116 iwl3945_rx_init(priv, rxq);
1117
1118
1119 /* Look at using this instead:
1120 rxq->need_update = 1;
1121 iwl_rx_queue_update_write_ptr(priv, rxq);
1122 */
1123
1124 iwl_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7);
1125
1126 rc = iwl3945_txq_ctx_reset(priv);
1127 if (rc)
1128 return rc;
1129
1130 set_bit(STATUS_INIT, &priv->status);
1131
1132 return 0;
1133 }
1134
1135 /**
1136 * iwl3945_hw_txq_ctx_free - Free TXQ Context
1137 *
1138 * Destroy all TX DMA queues and structures
1139 */
1140 void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv)
1141 {
1142 int txq_id;
1143
1144 /* Tx queues */
1145 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
1146 if (txq_id == IWL_CMD_QUEUE_NUM)
1147 iwl_cmd_queue_free(priv);
1148 else
1149 iwl_tx_queue_free(priv, txq_id);
1150
1151 }
1152
1153 void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
1154 {
1155 int txq_id;
1156
1157 /* stop SCD */
1158 iwl_write_prph(priv, ALM_SCD_MODE_REG, 0);
1159
1160 /* reset TFD queues */
1161 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
1162 iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
1163 iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS,
1164 FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
1165 1000);
1166 }
1167
1168 iwl3945_hw_txq_ctx_free(priv);
1169 }
1170
1171 static int iwl3945_apm_stop_master(struct iwl_priv *priv)
1172 {
1173 int ret = 0;
1174 unsigned long flags;
1175
1176 spin_lock_irqsave(&priv->lock, flags);
1177
1178 /* set stop master bit */
1179 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
1180
1181 iwl_poll_direct_bit(priv, CSR_RESET,
1182 CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
1183
1184 if (ret < 0)
1185 goto out;
1186
1187 out:
1188 spin_unlock_irqrestore(&priv->lock, flags);
1189 IWL_DEBUG_INFO(priv, "stop master\n");
1190
1191 return ret;
1192 }
1193
1194 static void iwl3945_apm_stop(struct iwl_priv *priv)
1195 {
1196 unsigned long flags;
1197
1198 iwl3945_apm_stop_master(priv);
1199
1200 spin_lock_irqsave(&priv->lock, flags);
1201
1202 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
1203
1204 udelay(10);
1205 /* clear "init complete" move adapter D0A* --> D0U state */
1206 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
1207 spin_unlock_irqrestore(&priv->lock, flags);
1208 }
1209
1210 static int iwl3945_apm_reset(struct iwl_priv *priv)
1211 {
1212 iwl3945_apm_stop_master(priv);
1213
1214
1215 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
1216 udelay(10);
1217
1218 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
1219
1220 iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
1221 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
1222
1223 iwl_write_prph(priv, APMG_CLK_CTRL_REG,
1224 APMG_CLK_VAL_BSM_CLK_RQT);
1225
1226 iwl_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
1227 iwl_write_prph(priv, APMG_RTC_INT_STT_REG,
1228 0xFFFFFFFF);
1229
1230 /* enable DMA */
1231 iwl_write_prph(priv, APMG_CLK_EN_REG,
1232 APMG_CLK_VAL_DMA_CLK_RQT |
1233 APMG_CLK_VAL_BSM_CLK_RQT);
1234 udelay(10);
1235
1236 iwl_set_bits_prph(priv, APMG_PS_CTRL_REG,
1237 APMG_PS_CTRL_VAL_RESET_REQ);
1238 udelay(5);
1239 iwl_clear_bits_prph(priv, APMG_PS_CTRL_REG,
1240 APMG_PS_CTRL_VAL_RESET_REQ);
1241
1242 /* Clear the 'host command active' bit... */
1243 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
1244
1245 wake_up_interruptible(&priv->wait_command_queue);
1246
1247 return 0;
1248 }
1249
1250 /**
1251 * iwl3945_hw_reg_adjust_power_by_temp
1252 * return index delta into power gain settings table
1253 */
1254 static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
1255 {
1256 return (new_reading - old_reading) * (-11) / 100;
1257 }
1258
1259 /**
1260 * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range
1261 */
1262 static inline int iwl3945_hw_reg_temp_out_of_range(int temperature)
1263 {
1264 return ((temperature < -260) || (temperature > 25)) ? 1 : 0;
1265 }
1266
1267 int iwl3945_hw_get_temperature(struct iwl_priv *priv)
1268 {
1269 return iwl_read32(priv, CSR_UCODE_DRV_GP2);
1270 }
1271
1272 /**
1273 * iwl3945_hw_reg_txpower_get_temperature
1274 * get the current temperature by reading from NIC
1275 */
1276 static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
1277 {
1278 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1279 int temperature;
1280
1281 temperature = iwl3945_hw_get_temperature(priv);
1282
1283 /* driver's okay range is -260 to +25.
1284 * human readable okay range is 0 to +285 */
1285 IWL_DEBUG_INFO(priv, "Temperature: %d\n", temperature + IWL_TEMP_CONVERT);
1286
1287 /* handle insane temp reading */
1288 if (iwl3945_hw_reg_temp_out_of_range(temperature)) {
1289 IWL_ERR(priv, "Error bad temperature value %d\n", temperature);
1290
1291 /* if really really hot(?),
1292 * substitute the 3rd band/group's temp measured at factory */
1293 if (priv->last_temperature > 100)
1294 temperature = eeprom->groups[2].temperature;
1295 else /* else use most recent "sane" value from driver */
1296 temperature = priv->last_temperature;
1297 }
1298
1299 return temperature; /* raw, not "human readable" */
1300 }
1301
1302 /* Adjust Txpower only if temperature variance is greater than threshold.
1303 *
1304 * Both are lower than older versions' 9 degrees */
1305 #define IWL_TEMPERATURE_LIMIT_TIMER 6
1306
1307 /**
1308 * is_temp_calib_needed - determines if new calibration is needed
1309 *
1310 * records new temperature in tx_mgr->temperature.
1311 * replaces tx_mgr->last_temperature *only* if calib needed
1312 * (assumes caller will actually do the calibration!). */
1313 static int is_temp_calib_needed(struct iwl_priv *priv)
1314 {
1315 int temp_diff;
1316
1317 priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
1318 temp_diff = priv->temperature - priv->last_temperature;
1319
1320 /* get absolute value */
1321 if (temp_diff < 0) {
1322 IWL_DEBUG_POWER(priv, "Getting cooler, delta %d,\n", temp_diff);
1323 temp_diff = -temp_diff;
1324 } else if (temp_diff == 0)
1325 IWL_DEBUG_POWER(priv, "Same temp,\n");
1326 else
1327 IWL_DEBUG_POWER(priv, "Getting warmer, delta %d,\n", temp_diff);
1328
1329 /* if we don't need calibration, *don't* update last_temperature */
1330 if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) {
1331 IWL_DEBUG_POWER(priv, "Timed thermal calib not needed\n");
1332 return 0;
1333 }
1334
1335 IWL_DEBUG_POWER(priv, "Timed thermal calib needed\n");
1336
1337 /* assume that caller will actually do calib ...
1338 * update the "last temperature" value */
1339 priv->last_temperature = priv->temperature;
1340 return 1;
1341 }
1342
1343 #define IWL_MAX_GAIN_ENTRIES 78
1344 #define IWL_CCK_FROM_OFDM_POWER_DIFF -5
1345 #define IWL_CCK_FROM_OFDM_INDEX_DIFF (10)
1346
1347 /* radio and DSP power table, each step is 1/2 dB.
1348 * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
1349 static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
1350 {
1351 {251, 127}, /* 2.4 GHz, highest power */
1352 {251, 127},
1353 {251, 127},
1354 {251, 127},
1355 {251, 125},
1356 {251, 110},
1357 {251, 105},
1358 {251, 98},
1359 {187, 125},
1360 {187, 115},
1361 {187, 108},
1362 {187, 99},
1363 {243, 119},
1364 {243, 111},
1365 {243, 105},
1366 {243, 97},
1367 {243, 92},
1368 {211, 106},
1369 {211, 100},
1370 {179, 120},
1371 {179, 113},
1372 {179, 107},
1373 {147, 125},
1374 {147, 119},
1375 {147, 112},
1376 {147, 106},
1377 {147, 101},
1378 {147, 97},
1379 {147, 91},
1380 {115, 107},
1381 {235, 121},
1382 {235, 115},
1383 {235, 109},
1384 {203, 127},
1385 {203, 121},
1386 {203, 115},
1387 {203, 108},
1388 {203, 102},
1389 {203, 96},
1390 {203, 92},
1391 {171, 110},
1392 {171, 104},
1393 {171, 98},
1394 {139, 116},
1395 {227, 125},
1396 {227, 119},
1397 {227, 113},
1398 {227, 107},
1399 {227, 101},
1400 {227, 96},
1401 {195, 113},
1402 {195, 106},
1403 {195, 102},
1404 {195, 95},
1405 {163, 113},
1406 {163, 106},
1407 {163, 102},
1408 {163, 95},
1409 {131, 113},
1410 {131, 106},
1411 {131, 102},
1412 {131, 95},
1413 {99, 113},
1414 {99, 106},
1415 {99, 102},
1416 {99, 95},
1417 {67, 113},
1418 {67, 106},
1419 {67, 102},
1420 {67, 95},
1421 {35, 113},
1422 {35, 106},
1423 {35, 102},
1424 {35, 95},
1425 {3, 113},
1426 {3, 106},
1427 {3, 102},
1428 {3, 95} }, /* 2.4 GHz, lowest power */
1429 {
1430 {251, 127}, /* 5.x GHz, highest power */
1431 {251, 120},
1432 {251, 114},
1433 {219, 119},
1434 {219, 101},
1435 {187, 113},
1436 {187, 102},
1437 {155, 114},
1438 {155, 103},
1439 {123, 117},
1440 {123, 107},
1441 {123, 99},
1442 {123, 92},
1443 {91, 108},
1444 {59, 125},
1445 {59, 118},
1446 {59, 109},
1447 {59, 102},
1448 {59, 96},
1449 {59, 90},
1450 {27, 104},
1451 {27, 98},
1452 {27, 92},
1453 {115, 118},
1454 {115, 111},
1455 {115, 104},
1456 {83, 126},
1457 {83, 121},
1458 {83, 113},
1459 {83, 105},
1460 {83, 99},
1461 {51, 118},
1462 {51, 111},
1463 {51, 104},
1464 {51, 98},
1465 {19, 116},
1466 {19, 109},
1467 {19, 102},
1468 {19, 98},
1469 {19, 93},
1470 {171, 113},
1471 {171, 107},
1472 {171, 99},
1473 {139, 120},
1474 {139, 113},
1475 {139, 107},
1476 {139, 99},
1477 {107, 120},
1478 {107, 113},
1479 {107, 107},
1480 {107, 99},
1481 {75, 120},
1482 {75, 113},
1483 {75, 107},
1484 {75, 99},
1485 {43, 120},
1486 {43, 113},
1487 {43, 107},
1488 {43, 99},
1489 {11, 120},
1490 {11, 113},
1491 {11, 107},
1492 {11, 99},
1493 {131, 107},
1494 {131, 99},
1495 {99, 120},
1496 {99, 113},
1497 {99, 107},
1498 {99, 99},
1499 {67, 120},
1500 {67, 113},
1501 {67, 107},
1502 {67, 99},
1503 {35, 120},
1504 {35, 113},
1505 {35, 107},
1506 {35, 99},
1507 {3, 120} } /* 5.x GHz, lowest power */
1508 };
1509
1510 static inline u8 iwl3945_hw_reg_fix_power_index(int index)
1511 {
1512 if (index < 0)
1513 return 0;
1514 if (index >= IWL_MAX_GAIN_ENTRIES)
1515 return IWL_MAX_GAIN_ENTRIES - 1;
1516 return (u8) index;
1517 }
1518
1519 /* Kick off thermal recalibration check every 60 seconds */
1520 #define REG_RECALIB_PERIOD (60)
1521
1522 /**
1523 * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
1524 *
1525 * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
1526 * or 6 Mbit (OFDM) rates.
1527 */
1528 static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
1529 s32 rate_index, const s8 *clip_pwrs,
1530 struct iwl_channel_info *ch_info,
1531 int band_index)
1532 {
1533 struct iwl3945_scan_power_info *scan_power_info;
1534 s8 power;
1535 u8 power_index;
1536
1537 scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index];
1538
1539 /* use this channel group's 6Mbit clipping/saturation pwr,
1540 * but cap at regulatory scan power restriction (set during init
1541 * based on eeprom channel data) for this channel. */
1542 power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
1543
1544 /* further limit to user's max power preference.
1545 * FIXME: Other spectrum management power limitations do not
1546 * seem to apply?? */
1547 power = min(power, priv->tx_power_user_lmt);
1548 scan_power_info->requested_power = power;
1549
1550 /* find difference between new scan *power* and current "normal"
1551 * Tx *power* for 6Mb. Use this difference (x2) to adjust the
1552 * current "normal" temperature-compensated Tx power *index* for
1553 * this rate (1Mb or 6Mb) to yield new temp-compensated scan power
1554 * *index*. */
1555 power_index = ch_info->power_info[rate_index].power_table_index
1556 - (power - ch_info->power_info
1557 [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
1558
1559 /* store reference index that we use when adjusting *all* scan
1560 * powers. So we can accommodate user (all channel) or spectrum
1561 * management (single channel) power changes "between" temperature
1562 * feedback compensation procedures.
1563 * don't force fit this reference index into gain table; it may be a
1564 * negative number. This will help avoid errors when we're at
1565 * the lower bounds (highest gains, for warmest temperatures)
1566 * of the table. */
1567
1568 /* don't exceed table bounds for "real" setting */
1569 power_index = iwl3945_hw_reg_fix_power_index(power_index);
1570
1571 scan_power_info->power_table_index = power_index;
1572 scan_power_info->tpc.tx_gain =
1573 power_gain_table[band_index][power_index].tx_gain;
1574 scan_power_info->tpc.dsp_atten =
1575 power_gain_table[band_index][power_index].dsp_atten;
1576 }
1577
1578 /**
1579 * iwl3945_send_tx_power - fill in Tx Power command with gain settings
1580 *
1581 * Configures power settings for all rates for the current channel,
1582 * using values from channel info struct, and send to NIC
1583 */
1584 static int iwl3945_send_tx_power(struct iwl_priv *priv)
1585 {
1586 int rate_idx, i;
1587 const struct iwl_channel_info *ch_info = NULL;
1588 struct iwl3945_txpowertable_cmd txpower = {
1589 .channel = priv->active_rxon.channel,
1590 };
1591
1592 txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
1593 ch_info = iwl_get_channel_info(priv,
1594 priv->band,
1595 le16_to_cpu(priv->active_rxon.channel));
1596 if (!ch_info) {
1597 IWL_ERR(priv,
1598 "Failed to get channel info for channel %d [%d]\n",
1599 le16_to_cpu(priv->active_rxon.channel), priv->band);
1600 return -EINVAL;
1601 }
1602
1603 if (!is_channel_valid(ch_info)) {
1604 IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on "
1605 "non-Tx channel.\n");
1606 return 0;
1607 }
1608
1609 /* fill cmd with power settings for all rates for current channel */
1610 /* Fill OFDM rate */
1611 for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
1612 rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) {
1613
1614 txpower.power[i].tpc = ch_info->power_info[i].tpc;
1615 txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
1616
1617 IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
1618 le16_to_cpu(txpower.channel),
1619 txpower.band,
1620 txpower.power[i].tpc.tx_gain,
1621 txpower.power[i].tpc.dsp_atten,
1622 txpower.power[i].rate);
1623 }
1624 /* Fill CCK rates */
1625 for (rate_idx = IWL_FIRST_CCK_RATE;
1626 rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
1627 txpower.power[i].tpc = ch_info->power_info[i].tpc;
1628 txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
1629
1630 IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
1631 le16_to_cpu(txpower.channel),
1632 txpower.band,
1633 txpower.power[i].tpc.tx_gain,
1634 txpower.power[i].tpc.dsp_atten,
1635 txpower.power[i].rate);
1636 }
1637
1638 return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
1639 sizeof(struct iwl3945_txpowertable_cmd),
1640 &txpower);
1641
1642 }
1643
1644 /**
1645 * iwl3945_hw_reg_set_new_power - Configures power tables at new levels
1646 * @ch_info: Channel to update. Uses power_info.requested_power.
1647 *
1648 * Replace requested_power and base_power_index ch_info fields for
1649 * one channel.
1650 *
1651 * Called if user or spectrum management changes power preferences.
1652 * Takes into account h/w and modulation limitations (clip power).
1653 *
1654 * This does *not* send anything to NIC, just sets up ch_info for one channel.
1655 *
1656 * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
1657 * properly fill out the scan powers, and actual h/w gain settings,
1658 * and send changes to NIC
1659 */
1660 static int iwl3945_hw_reg_set_new_power(struct iwl_priv *priv,
1661 struct iwl_channel_info *ch_info)
1662 {
1663 struct iwl3945_channel_power_info *power_info;
1664 int power_changed = 0;
1665 int i;
1666 const s8 *clip_pwrs;
1667 int power;
1668
1669 /* Get this chnlgrp's rate-to-max/clip-powers table */
1670 clip_pwrs = priv->clip39_groups[ch_info->group_index].clip_powers;
1671
1672 /* Get this channel's rate-to-current-power settings table */
1673 power_info = ch_info->power_info;
1674
1675 /* update OFDM Txpower settings */
1676 for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
1677 i++, ++power_info) {
1678 int delta_idx;
1679
1680 /* limit new power to be no more than h/w capability */
1681 power = min(ch_info->curr_txpow, clip_pwrs[i]);
1682 if (power == power_info->requested_power)
1683 continue;
1684
1685 /* find difference between old and new requested powers,
1686 * update base (non-temp-compensated) power index */
1687 delta_idx = (power - power_info->requested_power) * 2;
1688 power_info->base_power_index -= delta_idx;
1689
1690 /* save new requested power value */
1691 power_info->requested_power = power;
1692
1693 power_changed = 1;
1694 }
1695
1696 /* update CCK Txpower settings, based on OFDM 12M setting ...
1697 * ... all CCK power settings for a given channel are the *same*. */
1698 if (power_changed) {
1699 power =
1700 ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
1701 requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
1702
1703 /* do all CCK rates' iwl3945_channel_power_info structures */
1704 for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
1705 power_info->requested_power = power;
1706 power_info->base_power_index =
1707 ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
1708 base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
1709 ++power_info;
1710 }
1711 }
1712
1713 return 0;
1714 }
1715
1716 /**
1717 * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
1718 *
1719 * NOTE: Returned power limit may be less (but not more) than requested,
1720 * based strictly on regulatory (eeprom and spectrum mgt) limitations
1721 * (no consideration for h/w clipping limitations).
1722 */
1723 static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info)
1724 {
1725 s8 max_power;
1726
1727 #if 0
1728 /* if we're using TGd limits, use lower of TGd or EEPROM */
1729 if (ch_info->tgd_data.max_power != 0)
1730 max_power = min(ch_info->tgd_data.max_power,
1731 ch_info->eeprom.max_power_avg);
1732
1733 /* else just use EEPROM limits */
1734 else
1735 #endif
1736 max_power = ch_info->eeprom.max_power_avg;
1737
1738 return min(max_power, ch_info->max_power_avg);
1739 }
1740
1741 /**
1742 * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature
1743 *
1744 * Compensate txpower settings of *all* channels for temperature.
1745 * This only accounts for the difference between current temperature
1746 * and the factory calibration temperatures, and bases the new settings
1747 * on the channel's base_power_index.
1748 *
1749 * If RxOn is "associated", this sends the new Txpower to NIC!
1750 */
1751 static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
1752 {
1753 struct iwl_channel_info *ch_info = NULL;
1754 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1755 int delta_index;
1756 const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
1757 u8 a_band;
1758 u8 rate_index;
1759 u8 scan_tbl_index;
1760 u8 i;
1761 int ref_temp;
1762 int temperature = priv->temperature;
1763
1764 /* set up new Tx power info for each and every channel, 2.4 and 5.x */
1765 for (i = 0; i < priv->channel_count; i++) {
1766 ch_info = &priv->channel_info[i];
1767 a_band = is_channel_a_band(ch_info);
1768
1769 /* Get this chnlgrp's factory calibration temperature */
1770 ref_temp = (s16)eeprom->groups[ch_info->group_index].
1771 temperature;
1772
1773 /* get power index adjustment based on current and factory
1774 * temps */
1775 delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
1776 ref_temp);
1777
1778 /* set tx power value for all rates, OFDM and CCK */
1779 for (rate_index = 0; rate_index < IWL_RATE_COUNT;
1780 rate_index++) {
1781 int power_idx =
1782 ch_info->power_info[rate_index].base_power_index;
1783
1784 /* temperature compensate */
1785 power_idx += delta_index;
1786
1787 /* stay within table range */
1788 power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
1789 ch_info->power_info[rate_index].
1790 power_table_index = (u8) power_idx;
1791 ch_info->power_info[rate_index].tpc =
1792 power_gain_table[a_band][power_idx];
1793 }
1794
1795 /* Get this chnlgrp's rate-to-max/clip-powers table */
1796 clip_pwrs = priv->clip39_groups[ch_info->group_index].clip_powers;
1797
1798 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
1799 for (scan_tbl_index = 0;
1800 scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
1801 s32 actual_index = (scan_tbl_index == 0) ?
1802 IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
1803 iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
1804 actual_index, clip_pwrs,
1805 ch_info, a_band);
1806 }
1807 }
1808
1809 /* send Txpower command for current channel to ucode */
1810 return priv->cfg->ops->lib->send_tx_power(priv);
1811 }
1812
1813 int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
1814 {
1815 struct iwl_channel_info *ch_info;
1816 s8 max_power;
1817 u8 a_band;
1818 u8 i;
1819
1820 if (priv->tx_power_user_lmt == power) {
1821 IWL_DEBUG_POWER(priv, "Requested Tx power same as current "
1822 "limit: %ddBm.\n", power);
1823 return 0;
1824 }
1825
1826 IWL_DEBUG_POWER(priv, "Setting upper limit clamp to %ddBm.\n", power);
1827 priv->tx_power_user_lmt = power;
1828
1829 /* set up new Tx powers for each and every channel, 2.4 and 5.x */
1830
1831 for (i = 0; i < priv->channel_count; i++) {
1832 ch_info = &priv->channel_info[i];
1833 a_band = is_channel_a_band(ch_info);
1834
1835 /* find minimum power of all user and regulatory constraints
1836 * (does not consider h/w clipping limitations) */
1837 max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info);
1838 max_power = min(power, max_power);
1839 if (max_power != ch_info->curr_txpow) {
1840 ch_info->curr_txpow = max_power;
1841
1842 /* this considers the h/w clipping limitations */
1843 iwl3945_hw_reg_set_new_power(priv, ch_info);
1844 }
1845 }
1846
1847 /* update txpower settings for all channels,
1848 * send to NIC if associated. */
1849 is_temp_calib_needed(priv);
1850 iwl3945_hw_reg_comp_txpower_temp(priv);
1851
1852 return 0;
1853 }
1854
1855 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
1856 {
1857 int rc = 0;
1858 struct iwl_rx_packet *res = NULL;
1859 struct iwl3945_rxon_assoc_cmd rxon_assoc;
1860 struct iwl_host_cmd cmd = {
1861 .id = REPLY_RXON_ASSOC,
1862 .len = sizeof(rxon_assoc),
1863 .flags = CMD_WANT_SKB,
1864 .data = &rxon_assoc,
1865 };
1866 const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
1867 const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
1868
1869 if ((rxon1->flags == rxon2->flags) &&
1870 (rxon1->filter_flags == rxon2->filter_flags) &&
1871 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1872 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1873 IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
1874 return 0;
1875 }
1876
1877 rxon_assoc.flags = priv->staging_rxon.flags;
1878 rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
1879 rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
1880 rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
1881 rxon_assoc.reserved = 0;
1882
1883 rc = iwl_send_cmd_sync(priv, &cmd);
1884 if (rc)
1885 return rc;
1886
1887 res = (struct iwl_rx_packet *)cmd.reply_skb->data;
1888 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1889 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
1890 rc = -EIO;
1891 }
1892
1893 priv->alloc_rxb_skb--;
1894 dev_kfree_skb_any(cmd.reply_skb);
1895
1896 return rc;
1897 }
1898
1899 /**
1900 * iwl3945_commit_rxon - commit staging_rxon to hardware
1901 *
1902 * The RXON command in staging_rxon is committed to the hardware and
1903 * the active_rxon structure is updated with the new data. This
1904 * function correctly transitions out of the RXON_ASSOC_MSK state if
1905 * a HW tune is required based on the RXON structure changes.
1906 */
1907 static int iwl3945_commit_rxon(struct iwl_priv *priv)
1908 {
1909 /* cast away the const for active_rxon in this function */
1910 struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
1911 struct iwl3945_rxon_cmd *staging_rxon = (void *)&priv->staging_rxon;
1912 int rc = 0;
1913 bool new_assoc =
1914 !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
1915
1916 if (!iwl_is_alive(priv))
1917 return -1;
1918
1919 /* always get timestamp with Rx frame */
1920 staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
1921
1922 /* select antenna */
1923 staging_rxon->flags &=
1924 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
1925 staging_rxon->flags |= iwl3945_get_antenna_flags(priv);
1926
1927 rc = iwl_check_rxon_cmd(priv);
1928 if (rc) {
1929 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
1930 return -EINVAL;
1931 }
1932
1933 /* If we don't need to send a full RXON, we can use
1934 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1935 * and other flags for the current radio configuration. */
1936 if (!iwl_full_rxon_required(priv)) {
1937 rc = iwl_send_rxon_assoc(priv);
1938 if (rc) {
1939 IWL_ERR(priv, "Error setting RXON_ASSOC "
1940 "configuration (%d).\n", rc);
1941 return rc;
1942 }
1943
1944 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1945
1946 return 0;
1947 }
1948
1949 /* If we are currently associated and the new config requires
1950 * an RXON_ASSOC and the new config wants the associated mask enabled,
1951 * we must clear the associated from the active configuration
1952 * before we apply the new config */
1953 if (iwl_is_associated(priv) && new_assoc) {
1954 IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
1955 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1956
1957 /*
1958 * reserved4 and 5 could have been filled by the iwlcore code.
1959 * Let's clear them before pushing to the 3945.
1960 */
1961 active_rxon->reserved4 = 0;
1962 active_rxon->reserved5 = 0;
1963 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
1964 sizeof(struct iwl3945_rxon_cmd),
1965 &priv->active_rxon);
1966
1967 /* If the mask clearing failed then we set
1968 * active_rxon back to what it was previously */
1969 if (rc) {
1970 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
1971 IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
1972 "configuration (%d).\n", rc);
1973 return rc;
1974 }
1975 }
1976
1977 IWL_DEBUG_INFO(priv, "Sending RXON\n"
1978 "* with%s RXON_FILTER_ASSOC_MSK\n"
1979 "* channel = %d\n"
1980 "* bssid = %pM\n",
1981 (new_assoc ? "" : "out"),
1982 le16_to_cpu(staging_rxon->channel),
1983 staging_rxon->bssid_addr);
1984
1985 /*
1986 * reserved4 and 5 could have been filled by the iwlcore code.
1987 * Let's clear them before pushing to the 3945.
1988 */
1989 staging_rxon->reserved4 = 0;
1990 staging_rxon->reserved5 = 0;
1991
1992 iwl_set_rxon_hwcrypto(priv, !iwl3945_mod_params.sw_crypto);
1993
1994 /* Apply the new configuration */
1995 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
1996 sizeof(struct iwl3945_rxon_cmd),
1997 staging_rxon);
1998 if (rc) {
1999 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
2000 return rc;
2001 }
2002
2003 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
2004
2005 iwl_clear_stations_table(priv);
2006
2007 /* If we issue a new RXON command which required a tune then we must
2008 * send a new TXPOWER command or we won't be able to Tx any frames */
2009 rc = priv->cfg->ops->lib->send_tx_power(priv);
2010 if (rc) {
2011 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
2012 return rc;
2013 }
2014
2015 /* Add the broadcast address so we can send broadcast frames */
2016 if (iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL) ==
2017 IWL_INVALID_STATION) {
2018 IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
2019 return -EIO;
2020 }
2021
2022 /* If we have set the ASSOC_MSK and we are in BSS mode then
2023 * add the IWL_AP_ID to the station rate table */
2024 if (iwl_is_associated(priv) &&
2025 (priv->iw_mode == NL80211_IFTYPE_STATION))
2026 if (iwl_add_station(priv, priv->active_rxon.bssid_addr,
2027 true, CMD_SYNC, NULL) == IWL_INVALID_STATION) {
2028 IWL_ERR(priv, "Error adding AP address for transmit\n");
2029 return -EIO;
2030 }
2031
2032 /* Init the hardware's rate fallback order based on the band */
2033 rc = iwl3945_init_hw_rate_table(priv);
2034 if (rc) {
2035 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
2036 return -EIO;
2037 }
2038
2039 return 0;
2040 }
2041
2042 /* will add 3945 channel switch cmd handling later */
2043 int iwl3945_hw_channel_switch(struct iwl_priv *priv, u16 channel)
2044 {
2045 return 0;
2046 }
2047
2048 /**
2049 * iwl3945_reg_txpower_periodic - called when time to check our temperature.
2050 *
2051 * -- reset periodic timer
2052 * -- see if temp has changed enough to warrant re-calibration ... if so:
2053 * -- correct coeffs for temp (can reset temp timer)
2054 * -- save this temp as "last",
2055 * -- send new set of gain settings to NIC
2056 * NOTE: This should continue working, even when we're not associated,
2057 * so we can keep our internal table of scan powers current. */
2058 void iwl3945_reg_txpower_periodic(struct iwl_priv *priv)
2059 {
2060 /* This will kick in the "brute force"
2061 * iwl3945_hw_reg_comp_txpower_temp() below */
2062 if (!is_temp_calib_needed(priv))
2063 goto reschedule;
2064
2065 /* Set up a new set of temp-adjusted TxPowers, send to NIC.
2066 * This is based *only* on current temperature,
2067 * ignoring any previous power measurements */
2068 iwl3945_hw_reg_comp_txpower_temp(priv);
2069
2070 reschedule:
2071 queue_delayed_work(priv->workqueue,
2072 &priv->thermal_periodic, REG_RECALIB_PERIOD * HZ);
2073 }
2074
2075 static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work)
2076 {
2077 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2078 thermal_periodic.work);
2079
2080 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2081 return;
2082
2083 mutex_lock(&priv->mutex);
2084 iwl3945_reg_txpower_periodic(priv);
2085 mutex_unlock(&priv->mutex);
2086 }
2087
2088 /**
2089 * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
2090 * for the channel.
2091 *
2092 * This function is used when initializing channel-info structs.
2093 *
2094 * NOTE: These channel groups do *NOT* match the bands above!
2095 * These channel groups are based on factory-tested channels;
2096 * on A-band, EEPROM's "group frequency" entries represent the top
2097 * channel in each group 1-4. Group 5 All B/G channels are in group 0.
2098 */
2099 static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv,
2100 const struct iwl_channel_info *ch_info)
2101 {
2102 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
2103 struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
2104 u8 group;
2105 u16 group_index = 0; /* based on factory calib frequencies */
2106 u8 grp_channel;
2107
2108 /* Find the group index for the channel ... don't use index 1(?) */
2109 if (is_channel_a_band(ch_info)) {
2110 for (group = 1; group < 5; group++) {
2111 grp_channel = ch_grp[group].group_channel;
2112 if (ch_info->channel <= grp_channel) {
2113 group_index = group;
2114 break;
2115 }
2116 }
2117 /* group 4 has a few channels *above* its factory cal freq */
2118 if (group == 5)
2119 group_index = 4;
2120 } else
2121 group_index = 0; /* 2.4 GHz, group 0 */
2122
2123 IWL_DEBUG_POWER(priv, "Chnl %d mapped to grp %d\n", ch_info->channel,
2124 group_index);
2125 return group_index;
2126 }
2127
2128 /**
2129 * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
2130 *
2131 * Interpolate to get nominal (i.e. at factory calibration temperature) index
2132 * into radio/DSP gain settings table for requested power.
2133 */
2134 static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv,
2135 s8 requested_power,
2136 s32 setting_index, s32 *new_index)
2137 {
2138 const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL;
2139 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
2140 s32 index0, index1;
2141 s32 power = 2 * requested_power;
2142 s32 i;
2143 const struct iwl3945_eeprom_txpower_sample *samples;
2144 s32 gains0, gains1;
2145 s32 res;
2146 s32 denominator;
2147
2148 chnl_grp = &eeprom->groups[setting_index];
2149 samples = chnl_grp->samples;
2150 for (i = 0; i < 5; i++) {
2151 if (power == samples[i].power) {
2152 *new_index = samples[i].gain_index;
2153 return 0;
2154 }
2155 }
2156
2157 if (power > samples[1].power) {
2158 index0 = 0;
2159 index1 = 1;
2160 } else if (power > samples[2].power) {
2161 index0 = 1;
2162 index1 = 2;
2163 } else if (power > samples[3].power) {
2164 index0 = 2;
2165 index1 = 3;
2166 } else {
2167 index0 = 3;
2168 index1 = 4;
2169 }
2170
2171 denominator = (s32) samples[index1].power - (s32) samples[index0].power;
2172 if (denominator == 0)
2173 return -EINVAL;
2174 gains0 = (s32) samples[index0].gain_index * (1 << 19);
2175 gains1 = (s32) samples[index1].gain_index * (1 << 19);
2176 res = gains0 + (gains1 - gains0) *
2177 ((s32) power - (s32) samples[index0].power) / denominator +
2178 (1 << 18);
2179 *new_index = res >> 19;
2180 return 0;
2181 }
2182
2183 static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
2184 {
2185 u32 i;
2186 s32 rate_index;
2187 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
2188 const struct iwl3945_eeprom_txpower_group *group;
2189
2190 IWL_DEBUG_POWER(priv, "Initializing factory calib info from EEPROM\n");
2191
2192 for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) {
2193 s8 *clip_pwrs; /* table of power levels for each rate */
2194 s8 satur_pwr; /* saturation power for each chnl group */
2195 group = &eeprom->groups[i];
2196
2197 /* sanity check on factory saturation power value */
2198 if (group->saturation_power < 40) {
2199 IWL_WARN(priv, "Error: saturation power is %d, "
2200 "less than minimum expected 40\n",
2201 group->saturation_power);
2202 return;
2203 }
2204
2205 /*
2206 * Derive requested power levels for each rate, based on
2207 * hardware capabilities (saturation power for band).
2208 * Basic value is 3dB down from saturation, with further
2209 * power reductions for highest 3 data rates. These
2210 * backoffs provide headroom for high rate modulation
2211 * power peaks, without too much distortion (clipping).
2212 */
2213 /* we'll fill in this array with h/w max power levels */
2214 clip_pwrs = (s8 *) priv->clip39_groups[i].clip_powers;
2215
2216 /* divide factory saturation power by 2 to find -3dB level */
2217 satur_pwr = (s8) (group->saturation_power >> 1);
2218
2219 /* fill in channel group's nominal powers for each rate */
2220 for (rate_index = 0;
2221 rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) {
2222 switch (rate_index) {
2223 case IWL_RATE_36M_INDEX_TABLE:
2224 if (i == 0) /* B/G */
2225 *clip_pwrs = satur_pwr;
2226 else /* A */
2227 *clip_pwrs = satur_pwr - 5;
2228 break;
2229 case IWL_RATE_48M_INDEX_TABLE:
2230 if (i == 0)
2231 *clip_pwrs = satur_pwr - 7;
2232 else
2233 *clip_pwrs = satur_pwr - 10;
2234 break;
2235 case IWL_RATE_54M_INDEX_TABLE:
2236 if (i == 0)
2237 *clip_pwrs = satur_pwr - 9;
2238 else
2239 *clip_pwrs = satur_pwr - 12;
2240 break;
2241 default:
2242 *clip_pwrs = satur_pwr;
2243 break;
2244 }
2245 }
2246 }
2247 }
2248
2249 /**
2250 * iwl3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
2251 *
2252 * Second pass (during init) to set up priv->channel_info
2253 *
2254 * Set up Tx-power settings in our channel info database for each VALID
2255 * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
2256 * and current temperature.
2257 *
2258 * Since this is based on current temperature (at init time), these values may
2259 * not be valid for very long, but it gives us a starting/default point,
2260 * and allows us to active (i.e. using Tx) scan.
2261 *
2262 * This does *not* write values to NIC, just sets up our internal table.
2263 */
2264 int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
2265 {
2266 struct iwl_channel_info *ch_info = NULL;
2267 struct iwl3945_channel_power_info *pwr_info;
2268 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
2269 int delta_index;
2270 u8 rate_index;
2271 u8 scan_tbl_index;
2272 const s8 *clip_pwrs; /* array of power levels for each rate */
2273 u8 gain, dsp_atten;
2274 s8 power;
2275 u8 pwr_index, base_pwr_index, a_band;
2276 u8 i;
2277 int temperature;
2278
2279 /* save temperature reference,
2280 * so we can determine next time to calibrate */
2281 temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
2282 priv->last_temperature = temperature;
2283
2284 iwl3945_hw_reg_init_channel_groups(priv);
2285
2286 /* initialize Tx power info for each and every channel, 2.4 and 5.x */
2287 for (i = 0, ch_info = priv->channel_info; i < priv->channel_count;
2288 i++, ch_info++) {
2289 a_band = is_channel_a_band(ch_info);
2290 if (!is_channel_valid(ch_info))
2291 continue;
2292
2293 /* find this channel's channel group (*not* "band") index */
2294 ch_info->group_index =
2295 iwl3945_hw_reg_get_ch_grp_index(priv, ch_info);
2296
2297 /* Get this chnlgrp's rate->max/clip-powers table */
2298 clip_pwrs = priv->clip39_groups[ch_info->group_index].clip_powers;
2299
2300 /* calculate power index *adjustment* value according to
2301 * diff between current temperature and factory temperature */
2302 delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
2303 eeprom->groups[ch_info->group_index].
2304 temperature);
2305
2306 IWL_DEBUG_POWER(priv, "Delta index for channel %d: %d [%d]\n",
2307 ch_info->channel, delta_index, temperature +
2308 IWL_TEMP_CONVERT);
2309
2310 /* set tx power value for all OFDM rates */
2311 for (rate_index = 0; rate_index < IWL_OFDM_RATES;
2312 rate_index++) {
2313 s32 uninitialized_var(power_idx);
2314 int rc;
2315
2316 /* use channel group's clip-power table,
2317 * but don't exceed channel's max power */
2318 s8 pwr = min(ch_info->max_power_avg,
2319 clip_pwrs[rate_index]);
2320
2321 pwr_info = &ch_info->power_info[rate_index];
2322
2323 /* get base (i.e. at factory-measured temperature)
2324 * power table index for this rate's power */
2325 rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr,
2326 ch_info->group_index,
2327 &power_idx);
2328 if (rc) {
2329 IWL_ERR(priv, "Invalid power index\n");
2330 return rc;
2331 }
2332 pwr_info->base_power_index = (u8) power_idx;
2333
2334 /* temperature compensate */
2335 power_idx += delta_index;
2336
2337 /* stay within range of gain table */
2338 power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
2339
2340 /* fill 1 OFDM rate's iwl3945_channel_power_info struct */
2341 pwr_info->requested_power = pwr;
2342 pwr_info->power_table_index = (u8) power_idx;
2343 pwr_info->tpc.tx_gain =
2344 power_gain_table[a_band][power_idx].tx_gain;
2345 pwr_info->tpc.dsp_atten =
2346 power_gain_table[a_band][power_idx].dsp_atten;
2347 }
2348
2349 /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
2350 pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
2351 power = pwr_info->requested_power +
2352 IWL_CCK_FROM_OFDM_POWER_DIFF;
2353 pwr_index = pwr_info->power_table_index +
2354 IWL_CCK_FROM_OFDM_INDEX_DIFF;
2355 base_pwr_index = pwr_info->base_power_index +
2356 IWL_CCK_FROM_OFDM_INDEX_DIFF;
2357
2358 /* stay within table range */
2359 pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index);
2360 gain = power_gain_table[a_band][pwr_index].tx_gain;
2361 dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
2362
2363 /* fill each CCK rate's iwl3945_channel_power_info structure
2364 * NOTE: All CCK-rate Txpwrs are the same for a given chnl!
2365 * NOTE: CCK rates start at end of OFDM rates! */
2366 for (rate_index = 0;
2367 rate_index < IWL_CCK_RATES; rate_index++) {
2368 pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
2369 pwr_info->requested_power = power;
2370 pwr_info->power_table_index = pwr_index;
2371 pwr_info->base_power_index = base_pwr_index;
2372 pwr_info->tpc.tx_gain = gain;
2373 pwr_info->tpc.dsp_atten = dsp_atten;
2374 }
2375
2376 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
2377 for (scan_tbl_index = 0;
2378 scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
2379 s32 actual_index = (scan_tbl_index == 0) ?
2380 IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
2381 iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
2382 actual_index, clip_pwrs, ch_info, a_band);
2383 }
2384 }
2385
2386 return 0;
2387 }
2388
2389 int iwl3945_hw_rxq_stop(struct iwl_priv *priv)
2390 {
2391 int rc;
2392
2393 iwl_write_direct32(priv, FH39_RCSR_CONFIG(0), 0);
2394 rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS,
2395 FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
2396 if (rc < 0)
2397 IWL_ERR(priv, "Can't stop Rx DMA.\n");
2398
2399 return 0;
2400 }
2401
2402 int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
2403 {
2404 int txq_id = txq->q.id;
2405
2406 struct iwl3945_shared *shared_data = priv->shared_virt;
2407
2408 shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
2409
2410 iwl_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0);
2411 iwl_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0);
2412
2413 iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id),
2414 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
2415 FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
2416 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
2417 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
2418 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
2419
2420 /* fake read to flush all prev. writes */
2421 iwl_read32(priv, FH39_TSSR_CBB_BASE);
2422
2423 return 0;
2424 }
2425
2426 /*
2427 * HCMD utils
2428 */
2429 static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len)
2430 {
2431 switch (cmd_id) {
2432 case REPLY_RXON:
2433 return sizeof(struct iwl3945_rxon_cmd);
2434 case POWER_TABLE_CMD:
2435 return sizeof(struct iwl3945_powertable_cmd);
2436 default:
2437 return len;
2438 }
2439 }
2440
2441
2442 static u16 iwl3945_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
2443 {
2444 struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data;
2445 addsta->mode = cmd->mode;
2446 memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
2447 memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
2448 addsta->station_flags = cmd->station_flags;
2449 addsta->station_flags_msk = cmd->station_flags_msk;
2450 addsta->tid_disable_tx = cpu_to_le16(0);
2451 addsta->rate_n_flags = cmd->rate_n_flags;
2452 addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
2453 addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
2454 addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
2455
2456 return (u16)sizeof(struct iwl3945_addsta_cmd);
2457 }
2458
2459
2460 /**
2461 * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table
2462 */
2463 int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
2464 {
2465 int rc, i, index, prev_index;
2466 struct iwl3945_rate_scaling_cmd rate_cmd = {
2467 .reserved = {0, 0, 0},
2468 };
2469 struct iwl3945_rate_scaling_info *table = rate_cmd.table;
2470
2471 for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) {
2472 index = iwl3945_rates[i].table_rs_index;
2473
2474 table[index].rate_n_flags =
2475 iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0);
2476 table[index].try_cnt = priv->retry_rate;
2477 prev_index = iwl3945_get_prev_ieee_rate(i);
2478 table[index].next_rate_index =
2479 iwl3945_rates[prev_index].table_rs_index;
2480 }
2481
2482 switch (priv->band) {
2483 case IEEE80211_BAND_5GHZ:
2484 IWL_DEBUG_RATE(priv, "Select A mode rate scale\n");
2485 /* If one of the following CCK rates is used,
2486 * have it fall back to the 6M OFDM rate */
2487 for (i = IWL_RATE_1M_INDEX_TABLE;
2488 i <= IWL_RATE_11M_INDEX_TABLE; i++)
2489 table[i].next_rate_index =
2490 iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
2491
2492 /* Don't fall back to CCK rates */
2493 table[IWL_RATE_12M_INDEX_TABLE].next_rate_index =
2494 IWL_RATE_9M_INDEX_TABLE;
2495
2496 /* Don't drop out of OFDM rates */
2497 table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
2498 iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
2499 break;
2500
2501 case IEEE80211_BAND_2GHZ:
2502 IWL_DEBUG_RATE(priv, "Select B/G mode rate scale\n");
2503 /* If an OFDM rate is used, have it fall back to the
2504 * 1M CCK rates */
2505
2506 if (!(priv->sta_supp_rates & IWL_OFDM_RATES_MASK) &&
2507 iwl_is_associated(priv)) {
2508
2509 index = IWL_FIRST_CCK_RATE;
2510 for (i = IWL_RATE_6M_INDEX_TABLE;
2511 i <= IWL_RATE_54M_INDEX_TABLE; i++)
2512 table[i].next_rate_index =
2513 iwl3945_rates[index].table_rs_index;
2514
2515 index = IWL_RATE_11M_INDEX_TABLE;
2516 /* CCK shouldn't fall back to OFDM... */
2517 table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
2518 }
2519 break;
2520
2521 default:
2522 WARN_ON(1);
2523 break;
2524 }
2525
2526 /* Update the rate scaling for control frame Tx */
2527 rate_cmd.table_id = 0;
2528 rc = iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
2529 &rate_cmd);
2530 if (rc)
2531 return rc;
2532
2533 /* Update the rate scaling for data frame Tx */
2534 rate_cmd.table_id = 1;
2535 return iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
2536 &rate_cmd);
2537 }
2538
2539 /* Called when initializing driver */
2540 int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
2541 {
2542 memset((void *)&priv->hw_params, 0,
2543 sizeof(struct iwl_hw_params));
2544
2545 priv->shared_virt =
2546 pci_alloc_consistent(priv->pci_dev,
2547 sizeof(struct iwl3945_shared),
2548 &priv->shared_phys);
2549
2550 if (!priv->shared_virt) {
2551 IWL_ERR(priv, "failed to allocate pci memory\n");
2552 mutex_unlock(&priv->mutex);
2553 return -ENOMEM;
2554 }
2555
2556 /* Assign number of Usable TX queues */
2557 priv->hw_params.max_txq_num = IWL39_NUM_QUEUES;
2558
2559 priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd);
2560 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_3K;
2561 priv->hw_params.max_pkt_size = 2342;
2562 priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
2563 priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
2564 priv->hw_params.max_stations = IWL3945_STATION_COUNT;
2565 priv->hw_params.bcast_sta_id = IWL3945_BROADCAST_ID;
2566
2567 priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
2568 priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL;
2569
2570 return 0;
2571 }
2572
2573 unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
2574 struct iwl3945_frame *frame, u8 rate)
2575 {
2576 struct iwl3945_tx_beacon_cmd *tx_beacon_cmd;
2577 unsigned int frame_size;
2578
2579 tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u;
2580 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
2581
2582 tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
2583 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2584
2585 frame_size = iwl3945_fill_beacon_frame(priv,
2586 tx_beacon_cmd->frame,
2587 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
2588
2589 BUG_ON(frame_size > MAX_MPDU_SIZE);
2590 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
2591
2592 tx_beacon_cmd->tx.rate = rate;
2593 tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
2594 TX_CMD_FLG_TSF_MSK);
2595
2596 /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
2597 tx_beacon_cmd->tx.supp_rates[0] =
2598 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2599
2600 tx_beacon_cmd->tx.supp_rates[1] =
2601 (IWL_CCK_BASIC_RATES_MASK & 0xF);
2602
2603 return sizeof(struct iwl3945_tx_beacon_cmd) + frame_size;
2604 }
2605
2606 void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv)
2607 {
2608 priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx;
2609 priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx;
2610 }
2611
2612 void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv)
2613 {
2614 INIT_DELAYED_WORK(&priv->thermal_periodic,
2615 iwl3945_bg_reg_txpower_periodic);
2616 }
2617
2618 void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv)
2619 {
2620 cancel_delayed_work(&priv->thermal_periodic);
2621 }
2622
2623 /* check contents of special bootstrap uCode SRAM */
2624 static int iwl3945_verify_bsm(struct iwl_priv *priv)
2625 {
2626 __le32 *image = priv->ucode_boot.v_addr;
2627 u32 len = priv->ucode_boot.len;
2628 u32 reg;
2629 u32 val;
2630
2631 IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
2632
2633 /* verify BSM SRAM contents */
2634 val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG);
2635 for (reg = BSM_SRAM_LOWER_BOUND;
2636 reg < BSM_SRAM_LOWER_BOUND + len;
2637 reg += sizeof(u32), image++) {
2638 val = iwl_read_prph(priv, reg);
2639 if (val != le32_to_cpu(*image)) {
2640 IWL_ERR(priv, "BSM uCode verification failed at "
2641 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
2642 BSM_SRAM_LOWER_BOUND,
2643 reg - BSM_SRAM_LOWER_BOUND, len,
2644 val, le32_to_cpu(*image));
2645 return -EIO;
2646 }
2647 }
2648
2649 IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
2650
2651 return 0;
2652 }
2653
2654
2655 /******************************************************************************
2656 *
2657 * EEPROM related functions
2658 *
2659 ******************************************************************************/
2660
2661 /*
2662 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
2663 * embedded controller) as EEPROM reader; each read is a series of pulses
2664 * to/from the EEPROM chip, not a single event, so even reads could conflict
2665 * if they weren't arbitrated by some ownership mechanism. Here, the driver
2666 * simply claims ownership, which should be safe when this function is called
2667 * (i.e. before loading uCode!).
2668 */
2669 static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
2670 {
2671 _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
2672 return 0;
2673 }
2674
2675
2676 static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv)
2677 {
2678 return;
2679 }
2680
2681 /**
2682 * iwl3945_load_bsm - Load bootstrap instructions
2683 *
2684 * BSM operation:
2685 *
2686 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
2687 * in special SRAM that does not power down during RFKILL. When powering back
2688 * up after power-saving sleeps (or during initial uCode load), the BSM loads
2689 * the bootstrap program into the on-board processor, and starts it.
2690 *
2691 * The bootstrap program loads (via DMA) instructions and data for a new
2692 * program from host DRAM locations indicated by the host driver in the
2693 * BSM_DRAM_* registers. Once the new program is loaded, it starts
2694 * automatically.
2695 *
2696 * When initializing the NIC, the host driver points the BSM to the
2697 * "initialize" uCode image. This uCode sets up some internal data, then
2698 * notifies host via "initialize alive" that it is complete.
2699 *
2700 * The host then replaces the BSM_DRAM_* pointer values to point to the
2701 * normal runtime uCode instructions and a backup uCode data cache buffer
2702 * (filled initially with starting data values for the on-board processor),
2703 * then triggers the "initialize" uCode to load and launch the runtime uCode,
2704 * which begins normal operation.
2705 *
2706 * When doing a power-save shutdown, runtime uCode saves data SRAM into
2707 * the backup data cache in DRAM before SRAM is powered down.
2708 *
2709 * When powering back up, the BSM loads the bootstrap program. This reloads
2710 * the runtime uCode instructions and the backup data cache into SRAM,
2711 * and re-launches the runtime uCode from where it left off.
2712 */
2713 static int iwl3945_load_bsm(struct iwl_priv *priv)
2714 {
2715 __le32 *image = priv->ucode_boot.v_addr;
2716 u32 len = priv->ucode_boot.len;
2717 dma_addr_t pinst;
2718 dma_addr_t pdata;
2719 u32 inst_len;
2720 u32 data_len;
2721 int rc;
2722 int i;
2723 u32 done;
2724 u32 reg_offset;
2725
2726 IWL_DEBUG_INFO(priv, "Begin load bsm\n");
2727
2728 /* make sure bootstrap program is no larger than BSM's SRAM size */
2729 if (len > IWL39_MAX_BSM_SIZE)
2730 return -EINVAL;
2731
2732 /* Tell bootstrap uCode where to find the "Initialize" uCode
2733 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
2734 * NOTE: iwl3945_initialize_alive_start() will replace these values,
2735 * after the "initialize" uCode has run, to point to
2736 * runtime/protocol instructions and backup data cache. */
2737 pinst = priv->ucode_init.p_addr;
2738 pdata = priv->ucode_init_data.p_addr;
2739 inst_len = priv->ucode_init.len;
2740 data_len = priv->ucode_init_data.len;
2741
2742 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
2743 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
2744 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
2745 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
2746
2747 /* Fill BSM memory with bootstrap instructions */
2748 for (reg_offset = BSM_SRAM_LOWER_BOUND;
2749 reg_offset < BSM_SRAM_LOWER_BOUND + len;
2750 reg_offset += sizeof(u32), image++)
2751 _iwl_write_prph(priv, reg_offset,
2752 le32_to_cpu(*image));
2753
2754 rc = iwl3945_verify_bsm(priv);
2755 if (rc)
2756 return rc;
2757
2758 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
2759 iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
2760 iwl_write_prph(priv, BSM_WR_MEM_DST_REG,
2761 IWL39_RTC_INST_LOWER_BOUND);
2762 iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
2763
2764 /* Load bootstrap code into instruction SRAM now,
2765 * to prepare to load "initialize" uCode */
2766 iwl_write_prph(priv, BSM_WR_CTRL_REG,
2767 BSM_WR_CTRL_REG_BIT_START);
2768
2769 /* Wait for load of bootstrap uCode to finish */
2770 for (i = 0; i < 100; i++) {
2771 done = iwl_read_prph(priv, BSM_WR_CTRL_REG);
2772 if (!(done & BSM_WR_CTRL_REG_BIT_START))
2773 break;
2774 udelay(10);
2775 }
2776 if (i < 100)
2777 IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
2778 else {
2779 IWL_ERR(priv, "BSM write did not complete!\n");
2780 return -EIO;
2781 }
2782
2783 /* Enable future boot loads whenever power management unit triggers it
2784 * (e.g. when powering back up after power-save shutdown) */
2785 iwl_write_prph(priv, BSM_WR_CTRL_REG,
2786 BSM_WR_CTRL_REG_BIT_START_EN);
2787
2788 return 0;
2789 }
2790
2791 #define IWL3945_UCODE_GET(item) \
2792 static u32 iwl3945_ucode_get_##item(const struct iwl_ucode_header *ucode,\
2793 u32 api_ver) \
2794 { \
2795 return le32_to_cpu(ucode->u.v1.item); \
2796 }
2797
2798 static u32 iwl3945_ucode_get_header_size(u32 api_ver)
2799 {
2800 return UCODE_HEADER_SIZE(1);
2801 }
2802 static u32 iwl3945_ucode_get_build(const struct iwl_ucode_header *ucode,
2803 u32 api_ver)
2804 {
2805 return 0;
2806 }
2807 static u8 *iwl3945_ucode_get_data(const struct iwl_ucode_header *ucode,
2808 u32 api_ver)
2809 {
2810 return (u8 *) ucode->u.v1.data;
2811 }
2812
2813 IWL3945_UCODE_GET(inst_size);
2814 IWL3945_UCODE_GET(data_size);
2815 IWL3945_UCODE_GET(init_size);
2816 IWL3945_UCODE_GET(init_data_size);
2817 IWL3945_UCODE_GET(boot_size);
2818
2819 static struct iwl_hcmd_ops iwl3945_hcmd = {
2820 .rxon_assoc = iwl3945_send_rxon_assoc,
2821 .commit_rxon = iwl3945_commit_rxon,
2822 };
2823
2824 static struct iwl_ucode_ops iwl3945_ucode = {
2825 .get_header_size = iwl3945_ucode_get_header_size,
2826 .get_build = iwl3945_ucode_get_build,
2827 .get_inst_size = iwl3945_ucode_get_inst_size,
2828 .get_data_size = iwl3945_ucode_get_data_size,
2829 .get_init_size = iwl3945_ucode_get_init_size,
2830 .get_init_data_size = iwl3945_ucode_get_init_data_size,
2831 .get_boot_size = iwl3945_ucode_get_boot_size,
2832 .get_data = iwl3945_ucode_get_data,
2833 };
2834
2835 static struct iwl_lib_ops iwl3945_lib = {
2836 .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd,
2837 .txq_free_tfd = iwl3945_hw_txq_free_tfd,
2838 .txq_init = iwl3945_hw_tx_queue_init,
2839 .load_ucode = iwl3945_load_bsm,
2840 .apm_ops = {
2841 .init = iwl3945_apm_init,
2842 .reset = iwl3945_apm_reset,
2843 .stop = iwl3945_apm_stop,
2844 .config = iwl3945_nic_config,
2845 .set_pwr_src = iwl3945_set_pwr_src,
2846 },
2847 .eeprom_ops = {
2848 .regulatory_bands = {
2849 EEPROM_REGULATORY_BAND_1_CHANNELS,
2850 EEPROM_REGULATORY_BAND_2_CHANNELS,
2851 EEPROM_REGULATORY_BAND_3_CHANNELS,
2852 EEPROM_REGULATORY_BAND_4_CHANNELS,
2853 EEPROM_REGULATORY_BAND_5_CHANNELS,
2854 EEPROM_REGULATORY_BAND_NO_FAT,
2855 EEPROM_REGULATORY_BAND_NO_FAT,
2856 },
2857 .verify_signature = iwlcore_eeprom_verify_signature,
2858 .acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
2859 .release_semaphore = iwl3945_eeprom_release_semaphore,
2860 .query_addr = iwlcore_eeprom_query_addr,
2861 },
2862 .send_tx_power = iwl3945_send_tx_power,
2863 .is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr,
2864 .post_associate = iwl3945_post_associate,
2865 .isr = iwl_isr_legacy,
2866 .config_ap = iwl3945_config_ap,
2867 };
2868
2869 static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
2870 .get_hcmd_size = iwl3945_get_hcmd_size,
2871 .build_addsta_hcmd = iwl3945_build_addsta_hcmd,
2872 };
2873
2874 static struct iwl_ops iwl3945_ops = {
2875 .ucode = &iwl3945_ucode,
2876 .lib = &iwl3945_lib,
2877 .hcmd = &iwl3945_hcmd,
2878 .utils = &iwl3945_hcmd_utils,
2879 };
2880
2881 static struct iwl_cfg iwl3945_bg_cfg = {
2882 .name = "3945BG",
2883 .fw_name_pre = IWL3945_FW_PRE,
2884 .ucode_api_max = IWL3945_UCODE_API_MAX,
2885 .ucode_api_min = IWL3945_UCODE_API_MIN,
2886 .sku = IWL_SKU_G,
2887 .eeprom_size = IWL3945_EEPROM_IMG_SIZE,
2888 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
2889 .ops = &iwl3945_ops,
2890 .mod_params = &iwl3945_mod_params,
2891 .use_isr_legacy = true
2892 };
2893
2894 static struct iwl_cfg iwl3945_abg_cfg = {
2895 .name = "3945ABG",
2896 .fw_name_pre = IWL3945_FW_PRE,
2897 .ucode_api_max = IWL3945_UCODE_API_MAX,
2898 .ucode_api_min = IWL3945_UCODE_API_MIN,
2899 .sku = IWL_SKU_A|IWL_SKU_G,
2900 .eeprom_size = IWL3945_EEPROM_IMG_SIZE,
2901 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
2902 .ops = &iwl3945_ops,
2903 .mod_params = &iwl3945_mod_params,
2904 .use_isr_legacy = true
2905 };
2906
2907 struct pci_device_id iwl3945_hw_card_ids[] = {
2908 {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)},
2909 {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)},
2910 {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)},
2911 {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)},
2912 {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)},
2913 {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)},
2914 {0}
2915 };
2916
2917 MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids);
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