1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
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.
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
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
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/dma-mapping.h>
33 #include <linux/delay.h>
34 #include <linux/sched.h>
35 #include <linux/skbuff.h>
36 #include <linux/netdevice.h>
37 #include <linux/wireless.h>
38 #include <linux/firmware.h>
39 #include <linux/etherdevice.h>
40 #include <asm/unaligned.h>
41 #include <net/mac80211.h>
44 #include "iwl-3945-fh.h"
45 #include "iwl-commands.h"
48 #include "iwl-eeprom.h"
50 #include "iwl-helpers.h"
52 #include "iwl-3945-led.h"
53 #include "iwl-3945-debugfs.h"
54 #include "iwl-legacy.h"
56 #define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
57 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
58 IWL_RATE_##r##M_IEEE, \
59 IWL_RATE_##ip##M_INDEX, \
60 IWL_RATE_##in##M_INDEX, \
61 IWL_RATE_##rp##M_INDEX, \
62 IWL_RATE_##rn##M_INDEX, \
63 IWL_RATE_##pp##M_INDEX, \
64 IWL_RATE_##np##M_INDEX, \
65 IWL_RATE_##r##M_INDEX_TABLE, \
66 IWL_RATE_##ip##M_INDEX_TABLE }
70 * rate, prev rate, next rate, prev tgg rate, next tgg rate
72 * If there isn't a valid next or previous rate then INV is used which
73 * maps to IWL_RATE_INVALID
76 const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = {
77 IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
78 IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
79 IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
80 IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
81 IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
82 IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
83 IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
84 IWL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */
85 IWL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */
86 IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
87 IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
88 IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
91 static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
93 u8 rate = iwl3945_rates[rate_index].prev_ieee;
95 if (rate == IWL_RATE_INVALID)
100 /* 1 = enable the iwl3945_disable_events() function */
101 #define IWL_EVT_DISABLE (0)
102 #define IWL_EVT_DISABLE_SIZE (1532/32)
105 * iwl3945_disable_events - Disable selected events in uCode event log
107 * Disable an event by writing "1"s into "disable"
108 * bitmap in SRAM. Bit position corresponds to Event # (id/type).
109 * Default values of 0 enable uCode events to be logged.
110 * Use for only special debugging. This function is just a placeholder as-is,
111 * you'll need to provide the special bits! ...
112 * ... and set IWL_EVT_DISABLE to 1. */
113 void iwl3945_disable_events(struct iwl_priv *priv)
116 u32 base; /* SRAM address of event log header */
117 u32 disable_ptr; /* SRAM address of event-disable bitmap array */
118 u32 array_size; /* # of u32 entries in array */
119 static const u32 evt_disable[IWL_EVT_DISABLE_SIZE] = {
120 0x00000000, /* 31 - 0 Event id numbers */
121 0x00000000, /* 63 - 32 */
122 0x00000000, /* 95 - 64 */
123 0x00000000, /* 127 - 96 */
124 0x00000000, /* 159 - 128 */
125 0x00000000, /* 191 - 160 */
126 0x00000000, /* 223 - 192 */
127 0x00000000, /* 255 - 224 */
128 0x00000000, /* 287 - 256 */
129 0x00000000, /* 319 - 288 */
130 0x00000000, /* 351 - 320 */
131 0x00000000, /* 383 - 352 */
132 0x00000000, /* 415 - 384 */
133 0x00000000, /* 447 - 416 */
134 0x00000000, /* 479 - 448 */
135 0x00000000, /* 511 - 480 */
136 0x00000000, /* 543 - 512 */
137 0x00000000, /* 575 - 544 */
138 0x00000000, /* 607 - 576 */
139 0x00000000, /* 639 - 608 */
140 0x00000000, /* 671 - 640 */
141 0x00000000, /* 703 - 672 */
142 0x00000000, /* 735 - 704 */
143 0x00000000, /* 767 - 736 */
144 0x00000000, /* 799 - 768 */
145 0x00000000, /* 831 - 800 */
146 0x00000000, /* 863 - 832 */
147 0x00000000, /* 895 - 864 */
148 0x00000000, /* 927 - 896 */
149 0x00000000, /* 959 - 928 */
150 0x00000000, /* 991 - 960 */
151 0x00000000, /* 1023 - 992 */
152 0x00000000, /* 1055 - 1024 */
153 0x00000000, /* 1087 - 1056 */
154 0x00000000, /* 1119 - 1088 */
155 0x00000000, /* 1151 - 1120 */
156 0x00000000, /* 1183 - 1152 */
157 0x00000000, /* 1215 - 1184 */
158 0x00000000, /* 1247 - 1216 */
159 0x00000000, /* 1279 - 1248 */
160 0x00000000, /* 1311 - 1280 */
161 0x00000000, /* 1343 - 1312 */
162 0x00000000, /* 1375 - 1344 */
163 0x00000000, /* 1407 - 1376 */
164 0x00000000, /* 1439 - 1408 */
165 0x00000000, /* 1471 - 1440 */
166 0x00000000, /* 1503 - 1472 */
169 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
170 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
171 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
175 disable_ptr = iwl_read_targ_mem(priv, base + (4 * sizeof(u32)));
176 array_size = iwl_read_targ_mem(priv, base + (5 * sizeof(u32)));
178 if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) {
179 IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n",
181 for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++)
182 iwl_write_targ_mem(priv,
183 disable_ptr + (i * sizeof(u32)),
187 IWL_DEBUG_INFO(priv, "Selected uCode log events may be disabled\n");
188 IWL_DEBUG_INFO(priv, " by writing \"1\"s into disable bitmap\n");
189 IWL_DEBUG_INFO(priv, " in SRAM at 0x%x, size %d u32s\n",
190 disable_ptr, array_size);
195 static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
199 for (idx = 0; idx < IWL_RATE_COUNT_3945; idx++)
200 if (iwl3945_rates[idx].plcp == plcp)
205 #ifdef CONFIG_IWLWIFI_DEBUG
206 #define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x
208 static const char *iwl3945_get_tx_fail_reason(u32 status)
210 switch (status & TX_STATUS_MSK) {
211 case TX_3945_STATUS_SUCCESS:
213 TX_STATUS_ENTRY(SHORT_LIMIT);
214 TX_STATUS_ENTRY(LONG_LIMIT);
215 TX_STATUS_ENTRY(FIFO_UNDERRUN);
216 TX_STATUS_ENTRY(MGMNT_ABORT);
217 TX_STATUS_ENTRY(NEXT_FRAG);
218 TX_STATUS_ENTRY(LIFE_EXPIRE);
219 TX_STATUS_ENTRY(DEST_PS);
220 TX_STATUS_ENTRY(ABORTED);
221 TX_STATUS_ENTRY(BT_RETRY);
222 TX_STATUS_ENTRY(STA_INVALID);
223 TX_STATUS_ENTRY(FRAG_DROPPED);
224 TX_STATUS_ENTRY(TID_DISABLE);
225 TX_STATUS_ENTRY(FRAME_FLUSHED);
226 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
227 TX_STATUS_ENTRY(TX_LOCKED);
228 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
234 static inline const char *iwl3945_get_tx_fail_reason(u32 status)
241 * get ieee prev rate from rate scale table.
242 * for A and B mode we need to overright prev
245 int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate)
247 int next_rate = iwl3945_get_prev_ieee_rate(rate);
249 switch (priv->band) {
250 case IEEE80211_BAND_5GHZ:
251 if (rate == IWL_RATE_12M_INDEX)
252 next_rate = IWL_RATE_9M_INDEX;
253 else if (rate == IWL_RATE_6M_INDEX)
254 next_rate = IWL_RATE_6M_INDEX;
256 case IEEE80211_BAND_2GHZ:
257 if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
258 iwl_is_associated(priv, IWL_RXON_CTX_BSS)) {
259 if (rate == IWL_RATE_11M_INDEX)
260 next_rate = IWL_RATE_5M_INDEX;
273 * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
275 * When FW advances 'R' index, all entries between old and new 'R' index
276 * need to be reclaimed. As result, some free space forms. If there is
277 * enough free space (> low mark), wake the stack that feeds us.
279 static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
280 int txq_id, int index)
282 struct iwl_tx_queue *txq = &priv->txq[txq_id];
283 struct iwl_queue *q = &txq->q;
284 struct iwl_tx_info *tx_info;
286 BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM);
288 for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
289 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
291 tx_info = &txq->txb[txq->q.read_ptr];
292 ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb);
294 priv->cfg->ops->lib->txq_free_tfd(priv, txq);
297 if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0) &&
298 (txq_id != IWL39_CMD_QUEUE_NUM) &&
299 priv->mac80211_registered)
300 iwl_wake_queue(priv, txq);
304 * iwl3945_rx_reply_tx - Handle Tx response
306 static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
307 struct iwl_rx_mem_buffer *rxb)
309 struct iwl_rx_packet *pkt = rxb_addr(rxb);
310 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
311 int txq_id = SEQ_TO_QUEUE(sequence);
312 int index = SEQ_TO_INDEX(sequence);
313 struct iwl_tx_queue *txq = &priv->txq[txq_id];
314 struct ieee80211_tx_info *info;
315 struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
316 u32 status = le32_to_cpu(tx_resp->status);
320 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
321 IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
322 "is out of range [0-%d] %d %d\n", txq_id,
323 index, txq->q.n_bd, txq->q.write_ptr,
328 txq->time_stamp = jiffies;
329 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
330 ieee80211_tx_info_clear_status(info);
332 /* Fill the MRR chain with some info about on-chip retransmissions */
333 rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate);
334 if (info->band == IEEE80211_BAND_5GHZ)
335 rate_idx -= IWL_FIRST_OFDM_RATE;
337 fail = tx_resp->failure_frame;
339 info->status.rates[0].idx = rate_idx;
340 info->status.rates[0].count = fail + 1; /* add final attempt */
342 /* tx_status->rts_retry_count = tx_resp->failure_rts; */
343 info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ?
344 IEEE80211_TX_STAT_ACK : 0;
346 IWL_DEBUG_TX(priv, "Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
347 txq_id, iwl3945_get_tx_fail_reason(status), status,
348 tx_resp->rate, tx_resp->failure_frame);
350 IWL_DEBUG_TX_REPLY(priv, "Tx queue reclaim %d\n", index);
351 iwl3945_tx_queue_reclaim(priv, txq_id, index);
353 if (status & TX_ABORT_REQUIRED_MSK)
354 IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
359 /*****************************************************************************
361 * Intel PRO/Wireless 3945ABG/BG Network Connection
363 * RX handler implementations
365 *****************************************************************************/
366 #ifdef CONFIG_IWLWIFI_DEBUGFS
368 * based on the assumption of all statistics counter are in DWORD
369 * FIXME: This function is for debugging, do not deal with
370 * the case of counters roll-over.
372 static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
378 u32 *delta, *max_delta;
380 prev_stats = (__le32 *)&priv->_3945.statistics;
381 accum_stats = (u32 *)&priv->_3945.accum_statistics;
382 delta = (u32 *)&priv->_3945.delta_statistics;
383 max_delta = (u32 *)&priv->_3945.max_delta;
385 for (i = sizeof(__le32); i < sizeof(struct iwl3945_notif_statistics);
386 i += sizeof(__le32), stats++, prev_stats++, delta++,
387 max_delta++, accum_stats++) {
388 if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
389 *delta = (le32_to_cpu(*stats) -
390 le32_to_cpu(*prev_stats));
391 *accum_stats += *delta;
392 if (*delta > *max_delta)
397 /* reset accumulative statistics for "no-counter" type statistics */
398 priv->_3945.accum_statistics.general.temperature =
399 priv->_3945.statistics.general.temperature;
400 priv->_3945.accum_statistics.general.ttl_timestamp =
401 priv->_3945.statistics.general.ttl_timestamp;
405 void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
406 struct iwl_rx_mem_buffer *rxb)
408 struct iwl_rx_packet *pkt = rxb_addr(rxb);
410 IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
411 (int)sizeof(struct iwl3945_notif_statistics),
412 le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
413 #ifdef CONFIG_IWLWIFI_DEBUGFS
414 iwl3945_accumulative_statistics(priv, (__le32 *)&pkt->u.raw);
416 iwl_recover_from_statistics(priv, pkt);
418 memcpy(&priv->_3945.statistics, pkt->u.raw, sizeof(priv->_3945.statistics));
421 void iwl3945_reply_statistics(struct iwl_priv *priv,
422 struct iwl_rx_mem_buffer *rxb)
424 struct iwl_rx_packet *pkt = rxb_addr(rxb);
425 __le32 *flag = (__le32 *)&pkt->u.raw;
427 if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) {
428 #ifdef CONFIG_IWLWIFI_DEBUGFS
429 memset(&priv->_3945.accum_statistics, 0,
430 sizeof(struct iwl3945_notif_statistics));
431 memset(&priv->_3945.delta_statistics, 0,
432 sizeof(struct iwl3945_notif_statistics));
433 memset(&priv->_3945.max_delta, 0,
434 sizeof(struct iwl3945_notif_statistics));
436 IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
438 iwl3945_hw_rx_statistics(priv, rxb);
442 /******************************************************************************
444 * Misc. internal state and helper functions
446 ******************************************************************************/
448 /* This is necessary only for a number of statistics, see the caller. */
449 static int iwl3945_is_network_packet(struct iwl_priv *priv,
450 struct ieee80211_hdr *header)
452 /* Filter incoming packets to determine if they are targeted toward
453 * this network, discarding packets coming from ourselves */
454 switch (priv->iw_mode) {
455 case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */
456 /* packets to our IBSS update information */
457 return !compare_ether_addr(header->addr3, priv->bssid);
458 case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
459 /* packets to our IBSS update information */
460 return !compare_ether_addr(header->addr2, priv->bssid);
466 static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
467 struct iwl_rx_mem_buffer *rxb,
468 struct ieee80211_rx_status *stats)
470 struct iwl_rx_packet *pkt = rxb_addr(rxb);
471 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
472 struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
473 struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
474 u16 len = le16_to_cpu(rx_hdr->len);
476 __le16 fc = hdr->frame_control;
478 /* We received data from the HW, so stop the watchdog */
479 if (unlikely(len + IWL39_RX_FRAME_SIZE >
480 PAGE_SIZE << priv->hw_params.rx_page_order)) {
481 IWL_DEBUG_DROP(priv, "Corruption detected!\n");
485 /* We only process data packets if the interface is open */
486 if (unlikely(!priv->is_open)) {
487 IWL_DEBUG_DROP_LIMIT(priv,
488 "Dropping packet while interface is not open.\n");
492 skb = dev_alloc_skb(128);
494 IWL_ERR(priv, "dev_alloc_skb failed\n");
498 if (!iwl3945_mod_params.sw_crypto)
499 iwl_set_decrypted_flag(priv,
500 (struct ieee80211_hdr *)rxb_addr(rxb),
501 le32_to_cpu(rx_end->status), stats);
503 skb_add_rx_frag(skb, 0, rxb->page,
504 (void *)rx_hdr->payload - (void *)pkt, len);
506 iwl_update_stats(priv, false, fc, len);
507 memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
509 ieee80211_rx(priv->hw, skb);
510 priv->alloc_rxb_page--;
514 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
516 static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
517 struct iwl_rx_mem_buffer *rxb)
519 struct ieee80211_hdr *header;
520 struct ieee80211_rx_status rx_status;
521 struct iwl_rx_packet *pkt = rxb_addr(rxb);
522 struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
523 struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
524 struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
525 u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg);
526 u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff);
530 rx_status.mactime = le64_to_cpu(rx_end->timestamp);
531 rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
532 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
534 ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel),
537 rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate);
538 if (rx_status.band == IEEE80211_BAND_5GHZ)
539 rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
541 rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) &
542 RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
544 /* set the preamble flag if appropriate */
545 if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
546 rx_status.flag |= RX_FLAG_SHORTPRE;
548 if ((unlikely(rx_stats->phy_count > 20))) {
549 IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
550 rx_stats->phy_count);
554 if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR)
555 || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
556 IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
562 /* Convert 3945's rssi indicator to dBm */
563 rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET;
565 IWL_DEBUG_STATS(priv, "Rssi %d sig_avg %d noise_diff %d\n",
566 rx_status.signal, rx_stats_sig_avg,
567 rx_stats_noise_diff);
569 header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
571 network_packet = iwl3945_is_network_packet(priv, header);
573 IWL_DEBUG_STATS_LIMIT(priv, "[%c] %d RSSI:%d Signal:%u, Rate:%u\n",
574 network_packet ? '*' : ' ',
575 le16_to_cpu(rx_hdr->channel),
576 rx_status.signal, rx_status.signal,
579 iwl_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len), header);
581 if (network_packet) {
582 priv->_3945.last_beacon_time =
583 le32_to_cpu(rx_end->beacon_timestamp);
584 priv->_3945.last_tsf = le64_to_cpu(rx_end->timestamp);
585 priv->_3945.last_rx_rssi = rx_status.signal;
588 iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
591 int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
592 struct iwl_tx_queue *txq,
593 dma_addr_t addr, u16 len, u8 reset, u8 pad)
597 struct iwl3945_tfd *tfd, *tfd_tmp;
600 tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
601 tfd = &tfd_tmp[q->write_ptr];
604 memset(tfd, 0, sizeof(*tfd));
606 count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
608 if ((count >= NUM_TFD_CHUNKS) || (count < 0)) {
609 IWL_ERR(priv, "Error can not send more than %d chunks\n",
614 tfd->tbs[count].addr = cpu_to_le32(addr);
615 tfd->tbs[count].len = cpu_to_le32(len);
619 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) |
620 TFD_CTL_PAD_SET(pad));
626 * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
628 * Does NOT advance any indexes
630 void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
632 struct iwl3945_tfd *tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
633 int index = txq->q.read_ptr;
634 struct iwl3945_tfd *tfd = &tfd_tmp[index];
635 struct pci_dev *dev = priv->pci_dev;
640 counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
641 if (counter > NUM_TFD_CHUNKS) {
642 IWL_ERR(priv, "Too many chunks: %i\n", counter);
643 /* @todo issue fatal error, it is quite serious situation */
649 pci_unmap_single(dev,
650 dma_unmap_addr(&txq->meta[index], mapping),
651 dma_unmap_len(&txq->meta[index], len),
654 /* unmap chunks if any */
656 for (i = 1; i < counter; i++)
657 pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
658 le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE);
664 skb = txq->txb[txq->q.read_ptr].skb;
666 /* can be called from irqs-disabled context */
668 dev_kfree_skb_any(skb);
669 txq->txb[txq->q.read_ptr].skb = NULL;
675 * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
678 void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
679 struct iwl_device_cmd *cmd,
680 struct ieee80211_tx_info *info,
681 struct ieee80211_hdr *hdr,
682 int sta_id, int tx_id)
684 u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value;
685 u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT_3945);
691 __le16 fc = hdr->frame_control;
692 struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
694 rate = iwl3945_rates[rate_index].plcp;
695 tx_flags = tx_cmd->tx_flags;
697 /* We need to figure out how to get the sta->supp_rates while
698 * in this running context */
699 rate_mask = IWL_RATES_MASK_3945;
701 /* Set retry limit on DATA packets and Probe Responses*/
702 if (ieee80211_is_probe_resp(fc))
703 data_retry_limit = 3;
705 data_retry_limit = IWL_DEFAULT_TX_RETRY;
706 tx_cmd->data_retry_limit = data_retry_limit;
708 if (tx_id >= IWL39_CMD_QUEUE_NUM)
713 if (data_retry_limit < rts_retry_limit)
714 rts_retry_limit = data_retry_limit;
715 tx_cmd->rts_retry_limit = rts_retry_limit;
718 tx_cmd->tx_flags = tx_flags;
721 tx_cmd->supp_rates[0] =
722 ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
725 tx_cmd->supp_rates[1] = (rate_mask & 0xF);
727 IWL_DEBUG_RATE(priv, "Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
728 "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
729 tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags),
730 tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]);
733 static u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate)
735 unsigned long flags_spin;
736 struct iwl_station_entry *station;
738 if (sta_id == IWL_INVALID_STATION)
739 return IWL_INVALID_STATION;
741 spin_lock_irqsave(&priv->sta_lock, flags_spin);
742 station = &priv->stations[sta_id];
744 station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
745 station->sta.rate_n_flags = cpu_to_le16(tx_rate);
746 station->sta.mode = STA_CONTROL_MODIFY_MSK;
747 iwl_send_add_sta(priv, &station->sta, CMD_ASYNC);
748 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
750 IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n",
755 static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
758 * (for documentation purposes)
759 * to set power to V_AUX, do
761 if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
762 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
763 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
764 ~APMG_PS_CTRL_MSK_PWR_SRC);
766 iwl_poll_bit(priv, CSR_GPIO_IN,
767 CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
768 CSR_GPIO_IN_BIT_AUX_POWER, 5000);
772 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
773 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
774 ~APMG_PS_CTRL_MSK_PWR_SRC);
776 iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
777 CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */
780 static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
782 iwl_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
783 iwl_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0), rxq->rb_stts_dma);
784 iwl_write_direct32(priv, FH39_RCSR_WPTR(0), 0);
785 iwl_write_direct32(priv, FH39_RCSR_CONFIG(0),
786 FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
787 FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
788 FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
789 FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
790 (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
791 FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
792 (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
793 FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
795 /* fake read to flush all prev I/O */
796 iwl_read_direct32(priv, FH39_RSSR_CTRL);
801 static int iwl3945_tx_reset(struct iwl_priv *priv)
805 iwl_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
808 iwl_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
810 /* all 6 fifo are active */
811 iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
813 iwl_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
814 iwl_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
815 iwl_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
816 iwl_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
818 iwl_write_direct32(priv, FH39_TSSR_CBB_BASE,
819 priv->_3945.shared_phys);
821 iwl_write_direct32(priv, FH39_TSSR_MSG_CONFIG,
822 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
823 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
824 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
825 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
826 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
827 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
828 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
835 * iwl3945_txq_ctx_reset - Reset TX queue context
837 * Destroys all DMA structures and initialize them again
839 static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
842 int txq_id, slots_num;
844 iwl3945_hw_txq_ctx_free(priv);
846 /* allocate tx queue structure */
847 rc = iwl_alloc_txq_mem(priv);
852 rc = iwl3945_tx_reset(priv);
857 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
858 slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ?
859 TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
860 rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
863 IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
871 iwl3945_hw_txq_ctx_free(priv);
877 * Start up 3945's basic functionality after it has been reset
878 * (e.g. after platform boot, or shutdown via iwl_apm_stop())
879 * NOTE: This does not load uCode nor start the embedded processor
881 static int iwl3945_apm_init(struct iwl_priv *priv)
883 int ret = iwl_apm_init(priv);
885 /* Clear APMG (NIC's internal power management) interrupts */
886 iwl_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
887 iwl_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
889 /* Reset radio chip */
890 iwl_set_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
892 iwl_clear_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
897 static void iwl3945_nic_config(struct iwl_priv *priv)
899 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
901 u8 rev_id = priv->pci_dev->revision;
903 spin_lock_irqsave(&priv->lock, flags);
905 /* Determine HW type */
906 IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id);
908 if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
909 IWL_DEBUG_INFO(priv, "RTP type\n");
910 else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
911 IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n");
912 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
913 CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
915 IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n");
916 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
917 CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
920 if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
921 IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n");
922 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
923 CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
925 IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n");
927 if ((eeprom->board_revision & 0xF0) == 0xD0) {
928 IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
929 eeprom->board_revision);
930 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
931 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
933 IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
934 eeprom->board_revision);
935 iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
936 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
939 if (eeprom->almgor_m_version <= 1) {
940 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
941 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
942 IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n",
943 eeprom->almgor_m_version);
945 IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n",
946 eeprom->almgor_m_version);
947 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
948 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
950 spin_unlock_irqrestore(&priv->lock, flags);
952 if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
953 IWL_DEBUG_RF_KILL(priv, "SW RF KILL supported in EEPROM.\n");
955 if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
956 IWL_DEBUG_RF_KILL(priv, "HW RF KILL supported in EEPROM.\n");
959 int iwl3945_hw_nic_init(struct iwl_priv *priv)
963 struct iwl_rx_queue *rxq = &priv->rxq;
965 spin_lock_irqsave(&priv->lock, flags);
966 priv->cfg->ops->lib->apm_ops.init(priv);
967 spin_unlock_irqrestore(&priv->lock, flags);
969 iwl3945_set_pwr_vmain(priv);
971 priv->cfg->ops->lib->apm_ops.config(priv);
973 /* Allocate the RX queue, or reset if it is already allocated */
975 rc = iwl_rx_queue_alloc(priv);
977 IWL_ERR(priv, "Unable to initialize Rx queue\n");
981 iwl3945_rx_queue_reset(priv, rxq);
983 iwl3945_rx_replenish(priv);
985 iwl3945_rx_init(priv, rxq);
988 /* Look at using this instead:
989 rxq->need_update = 1;
990 iwl_rx_queue_update_write_ptr(priv, rxq);
993 iwl_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7);
995 rc = iwl3945_txq_ctx_reset(priv);
999 set_bit(STATUS_INIT, &priv->status);
1005 * iwl3945_hw_txq_ctx_free - Free TXQ Context
1007 * Destroy all TX DMA queues and structures
1009 void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv)
1015 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num;
1017 if (txq_id == IWL39_CMD_QUEUE_NUM)
1018 iwl_cmd_queue_free(priv);
1020 iwl_tx_queue_free(priv, txq_id);
1022 /* free tx queue structure */
1023 iwl_free_txq_mem(priv);
1026 void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
1031 iwl_write_prph(priv, ALM_SCD_MODE_REG, 0);
1032 iwl_write_prph(priv, ALM_SCD_TXFACT_REG, 0);
1034 /* reset TFD queues */
1035 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
1036 iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
1037 iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS,
1038 FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
1042 iwl3945_hw_txq_ctx_free(priv);
1046 * iwl3945_hw_reg_adjust_power_by_temp
1047 * return index delta into power gain settings table
1049 static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
1051 return (new_reading - old_reading) * (-11) / 100;
1055 * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range
1057 static inline int iwl3945_hw_reg_temp_out_of_range(int temperature)
1059 return ((temperature < -260) || (temperature > 25)) ? 1 : 0;
1062 int iwl3945_hw_get_temperature(struct iwl_priv *priv)
1064 return iwl_read32(priv, CSR_UCODE_DRV_GP2);
1068 * iwl3945_hw_reg_txpower_get_temperature
1069 * get the current temperature by reading from NIC
1071 static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
1073 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1076 temperature = iwl3945_hw_get_temperature(priv);
1078 /* driver's okay range is -260 to +25.
1079 * human readable okay range is 0 to +285 */
1080 IWL_DEBUG_INFO(priv, "Temperature: %d\n", temperature + IWL_TEMP_CONVERT);
1082 /* handle insane temp reading */
1083 if (iwl3945_hw_reg_temp_out_of_range(temperature)) {
1084 IWL_ERR(priv, "Error bad temperature value %d\n", temperature);
1086 /* if really really hot(?),
1087 * substitute the 3rd band/group's temp measured at factory */
1088 if (priv->last_temperature > 100)
1089 temperature = eeprom->groups[2].temperature;
1090 else /* else use most recent "sane" value from driver */
1091 temperature = priv->last_temperature;
1094 return temperature; /* raw, not "human readable" */
1097 /* Adjust Txpower only if temperature variance is greater than threshold.
1099 * Both are lower than older versions' 9 degrees */
1100 #define IWL_TEMPERATURE_LIMIT_TIMER 6
1103 * is_temp_calib_needed - determines if new calibration is needed
1105 * records new temperature in tx_mgr->temperature.
1106 * replaces tx_mgr->last_temperature *only* if calib needed
1107 * (assumes caller will actually do the calibration!). */
1108 static int is_temp_calib_needed(struct iwl_priv *priv)
1112 priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
1113 temp_diff = priv->temperature - priv->last_temperature;
1115 /* get absolute value */
1116 if (temp_diff < 0) {
1117 IWL_DEBUG_POWER(priv, "Getting cooler, delta %d,\n", temp_diff);
1118 temp_diff = -temp_diff;
1119 } else if (temp_diff == 0)
1120 IWL_DEBUG_POWER(priv, "Same temp,\n");
1122 IWL_DEBUG_POWER(priv, "Getting warmer, delta %d,\n", temp_diff);
1124 /* if we don't need calibration, *don't* update last_temperature */
1125 if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) {
1126 IWL_DEBUG_POWER(priv, "Timed thermal calib not needed\n");
1130 IWL_DEBUG_POWER(priv, "Timed thermal calib needed\n");
1132 /* assume that caller will actually do calib ...
1133 * update the "last temperature" value */
1134 priv->last_temperature = priv->temperature;
1138 #define IWL_MAX_GAIN_ENTRIES 78
1139 #define IWL_CCK_FROM_OFDM_POWER_DIFF -5
1140 #define IWL_CCK_FROM_OFDM_INDEX_DIFF (10)
1142 /* radio and DSP power table, each step is 1/2 dB.
1143 * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
1144 static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
1146 {251, 127}, /* 2.4 GHz, highest power */
1223 {3, 95} }, /* 2.4 GHz, lowest power */
1225 {251, 127}, /* 5.x GHz, highest power */
1302 {3, 120} } /* 5.x GHz, lowest power */
1305 static inline u8 iwl3945_hw_reg_fix_power_index(int index)
1309 if (index >= IWL_MAX_GAIN_ENTRIES)
1310 return IWL_MAX_GAIN_ENTRIES - 1;
1314 /* Kick off thermal recalibration check every 60 seconds */
1315 #define REG_RECALIB_PERIOD (60)
1318 * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
1320 * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
1321 * or 6 Mbit (OFDM) rates.
1323 static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
1324 s32 rate_index, const s8 *clip_pwrs,
1325 struct iwl_channel_info *ch_info,
1328 struct iwl3945_scan_power_info *scan_power_info;
1332 scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index];
1334 /* use this channel group's 6Mbit clipping/saturation pwr,
1335 * but cap at regulatory scan power restriction (set during init
1336 * based on eeprom channel data) for this channel. */
1337 power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
1339 /* further limit to user's max power preference.
1340 * FIXME: Other spectrum management power limitations do not
1341 * seem to apply?? */
1342 power = min(power, priv->tx_power_user_lmt);
1343 scan_power_info->requested_power = power;
1345 /* find difference between new scan *power* and current "normal"
1346 * Tx *power* for 6Mb. Use this difference (x2) to adjust the
1347 * current "normal" temperature-compensated Tx power *index* for
1348 * this rate (1Mb or 6Mb) to yield new temp-compensated scan power
1350 power_index = ch_info->power_info[rate_index].power_table_index
1351 - (power - ch_info->power_info
1352 [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
1354 /* store reference index that we use when adjusting *all* scan
1355 * powers. So we can accommodate user (all channel) or spectrum
1356 * management (single channel) power changes "between" temperature
1357 * feedback compensation procedures.
1358 * don't force fit this reference index into gain table; it may be a
1359 * negative number. This will help avoid errors when we're at
1360 * the lower bounds (highest gains, for warmest temperatures)
1363 /* don't exceed table bounds for "real" setting */
1364 power_index = iwl3945_hw_reg_fix_power_index(power_index);
1366 scan_power_info->power_table_index = power_index;
1367 scan_power_info->tpc.tx_gain =
1368 power_gain_table[band_index][power_index].tx_gain;
1369 scan_power_info->tpc.dsp_atten =
1370 power_gain_table[band_index][power_index].dsp_atten;
1374 * iwl3945_send_tx_power - fill in Tx Power command with gain settings
1376 * Configures power settings for all rates for the current channel,
1377 * using values from channel info struct, and send to NIC
1379 static int iwl3945_send_tx_power(struct iwl_priv *priv)
1382 const struct iwl_channel_info *ch_info = NULL;
1383 struct iwl3945_txpowertable_cmd txpower = {
1384 .channel = priv->contexts[IWL_RXON_CTX_BSS].active.channel,
1388 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
1389 "TX Power requested while scanning!\n"))
1392 chan = le16_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.channel);
1394 txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
1395 ch_info = iwl_get_channel_info(priv, priv->band, chan);
1398 "Failed to get channel info for channel %d [%d]\n",
1403 if (!is_channel_valid(ch_info)) {
1404 IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on "
1405 "non-Tx channel.\n");
1409 /* fill cmd with power settings for all rates for current channel */
1410 /* Fill OFDM rate */
1411 for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
1412 rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) {
1414 txpower.power[i].tpc = ch_info->power_info[i].tpc;
1415 txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
1417 IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
1418 le16_to_cpu(txpower.channel),
1420 txpower.power[i].tpc.tx_gain,
1421 txpower.power[i].tpc.dsp_atten,
1422 txpower.power[i].rate);
1424 /* Fill CCK rates */
1425 for (rate_idx = IWL_FIRST_CCK_RATE;
1426 rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
1427 txpower.power[i].tpc = ch_info->power_info[i].tpc;
1428 txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
1430 IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
1431 le16_to_cpu(txpower.channel),
1433 txpower.power[i].tpc.tx_gain,
1434 txpower.power[i].tpc.dsp_atten,
1435 txpower.power[i].rate);
1438 return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
1439 sizeof(struct iwl3945_txpowertable_cmd),
1445 * iwl3945_hw_reg_set_new_power - Configures power tables at new levels
1446 * @ch_info: Channel to update. Uses power_info.requested_power.
1448 * Replace requested_power and base_power_index ch_info fields for
1451 * Called if user or spectrum management changes power preferences.
1452 * Takes into account h/w and modulation limitations (clip power).
1454 * This does *not* send anything to NIC, just sets up ch_info for one channel.
1456 * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
1457 * properly fill out the scan powers, and actual h/w gain settings,
1458 * and send changes to NIC
1460 static int iwl3945_hw_reg_set_new_power(struct iwl_priv *priv,
1461 struct iwl_channel_info *ch_info)
1463 struct iwl3945_channel_power_info *power_info;
1464 int power_changed = 0;
1466 const s8 *clip_pwrs;
1469 /* Get this chnlgrp's rate-to-max/clip-powers table */
1470 clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
1472 /* Get this channel's rate-to-current-power settings table */
1473 power_info = ch_info->power_info;
1475 /* update OFDM Txpower settings */
1476 for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
1477 i++, ++power_info) {
1480 /* limit new power to be no more than h/w capability */
1481 power = min(ch_info->curr_txpow, clip_pwrs[i]);
1482 if (power == power_info->requested_power)
1485 /* find difference between old and new requested powers,
1486 * update base (non-temp-compensated) power index */
1487 delta_idx = (power - power_info->requested_power) * 2;
1488 power_info->base_power_index -= delta_idx;
1490 /* save new requested power value */
1491 power_info->requested_power = power;
1496 /* update CCK Txpower settings, based on OFDM 12M setting ...
1497 * ... all CCK power settings for a given channel are the *same*. */
1498 if (power_changed) {
1500 ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
1501 requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
1503 /* do all CCK rates' iwl3945_channel_power_info structures */
1504 for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
1505 power_info->requested_power = power;
1506 power_info->base_power_index =
1507 ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
1508 base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
1517 * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
1519 * NOTE: Returned power limit may be less (but not more) than requested,
1520 * based strictly on regulatory (eeprom and spectrum mgt) limitations
1521 * (no consideration for h/w clipping limitations).
1523 static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info)
1528 /* if we're using TGd limits, use lower of TGd or EEPROM */
1529 if (ch_info->tgd_data.max_power != 0)
1530 max_power = min(ch_info->tgd_data.max_power,
1531 ch_info->eeprom.max_power_avg);
1533 /* else just use EEPROM limits */
1536 max_power = ch_info->eeprom.max_power_avg;
1538 return min(max_power, ch_info->max_power_avg);
1542 * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature
1544 * Compensate txpower settings of *all* channels for temperature.
1545 * This only accounts for the difference between current temperature
1546 * and the factory calibration temperatures, and bases the new settings
1547 * on the channel's base_power_index.
1549 * If RxOn is "associated", this sends the new Txpower to NIC!
1551 static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
1553 struct iwl_channel_info *ch_info = NULL;
1554 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1556 const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
1562 int temperature = priv->temperature;
1564 if (priv->disable_tx_power_cal ||
1565 test_bit(STATUS_SCANNING, &priv->status)) {
1566 /* do not perform tx power calibration */
1569 /* set up new Tx power info for each and every channel, 2.4 and 5.x */
1570 for (i = 0; i < priv->channel_count; i++) {
1571 ch_info = &priv->channel_info[i];
1572 a_band = is_channel_a_band(ch_info);
1574 /* Get this chnlgrp's factory calibration temperature */
1575 ref_temp = (s16)eeprom->groups[ch_info->group_index].
1578 /* get power index adjustment based on current and factory
1580 delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
1583 /* set tx power value for all rates, OFDM and CCK */
1584 for (rate_index = 0; rate_index < IWL_RATE_COUNT_3945;
1587 ch_info->power_info[rate_index].base_power_index;
1589 /* temperature compensate */
1590 power_idx += delta_index;
1592 /* stay within table range */
1593 power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
1594 ch_info->power_info[rate_index].
1595 power_table_index = (u8) power_idx;
1596 ch_info->power_info[rate_index].tpc =
1597 power_gain_table[a_band][power_idx];
1600 /* Get this chnlgrp's rate-to-max/clip-powers table */
1601 clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
1603 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
1604 for (scan_tbl_index = 0;
1605 scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
1606 s32 actual_index = (scan_tbl_index == 0) ?
1607 IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
1608 iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
1609 actual_index, clip_pwrs,
1614 /* send Txpower command for current channel to ucode */
1615 return priv->cfg->ops->lib->send_tx_power(priv);
1618 int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
1620 struct iwl_channel_info *ch_info;
1625 if (priv->tx_power_user_lmt == power) {
1626 IWL_DEBUG_POWER(priv, "Requested Tx power same as current "
1627 "limit: %ddBm.\n", power);
1631 IWL_DEBUG_POWER(priv, "Setting upper limit clamp to %ddBm.\n", power);
1632 priv->tx_power_user_lmt = power;
1634 /* set up new Tx powers for each and every channel, 2.4 and 5.x */
1636 for (i = 0; i < priv->channel_count; i++) {
1637 ch_info = &priv->channel_info[i];
1638 a_band = is_channel_a_band(ch_info);
1640 /* find minimum power of all user and regulatory constraints
1641 * (does not consider h/w clipping limitations) */
1642 max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info);
1643 max_power = min(power, max_power);
1644 if (max_power != ch_info->curr_txpow) {
1645 ch_info->curr_txpow = max_power;
1647 /* this considers the h/w clipping limitations */
1648 iwl3945_hw_reg_set_new_power(priv, ch_info);
1652 /* update txpower settings for all channels,
1653 * send to NIC if associated. */
1654 is_temp_calib_needed(priv);
1655 iwl3945_hw_reg_comp_txpower_temp(priv);
1660 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv,
1661 struct iwl_rxon_context *ctx)
1664 struct iwl_rx_packet *pkt;
1665 struct iwl3945_rxon_assoc_cmd rxon_assoc;
1666 struct iwl_host_cmd cmd = {
1667 .id = REPLY_RXON_ASSOC,
1668 .len = sizeof(rxon_assoc),
1669 .flags = CMD_WANT_SKB,
1670 .data = &rxon_assoc,
1672 const struct iwl_rxon_cmd *rxon1 = &ctx->staging;
1673 const struct iwl_rxon_cmd *rxon2 = &ctx->active;
1675 if ((rxon1->flags == rxon2->flags) &&
1676 (rxon1->filter_flags == rxon2->filter_flags) &&
1677 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1678 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1679 IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
1683 rxon_assoc.flags = ctx->staging.flags;
1684 rxon_assoc.filter_flags = ctx->staging.filter_flags;
1685 rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
1686 rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
1687 rxon_assoc.reserved = 0;
1689 rc = iwl_send_cmd_sync(priv, &cmd);
1693 pkt = (struct iwl_rx_packet *)cmd.reply_page;
1694 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
1695 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
1699 iwl_free_pages(priv, cmd.reply_page);
1705 * iwl3945_commit_rxon - commit staging_rxon to hardware
1707 * The RXON command in staging_rxon is committed to the hardware and
1708 * the active_rxon structure is updated with the new data. This
1709 * function correctly transitions out of the RXON_ASSOC_MSK state if
1710 * a HW tune is required based on the RXON structure changes.
1712 int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1714 /* cast away the const for active_rxon in this function */
1715 struct iwl3945_rxon_cmd *active_rxon = (void *)&ctx->active;
1716 struct iwl3945_rxon_cmd *staging_rxon = (void *)&ctx->staging;
1718 bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK);
1720 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1723 if (!iwl_is_alive(priv))
1726 /* always get timestamp with Rx frame */
1727 staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
1729 /* select antenna */
1730 staging_rxon->flags &=
1731 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
1732 staging_rxon->flags |= iwl3945_get_antenna_flags(priv);
1734 rc = iwl_check_rxon_cmd(priv, ctx);
1736 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
1740 /* If we don't need to send a full RXON, we can use
1741 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1742 * and other flags for the current radio configuration. */
1743 if (!iwl_full_rxon_required(priv, &priv->contexts[IWL_RXON_CTX_BSS])) {
1744 rc = iwl_send_rxon_assoc(priv,
1745 &priv->contexts[IWL_RXON_CTX_BSS]);
1747 IWL_ERR(priv, "Error setting RXON_ASSOC "
1748 "configuration (%d).\n", rc);
1752 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1757 /* If we are currently associated and the new config requires
1758 * an RXON_ASSOC and the new config wants the associated mask enabled,
1759 * we must clear the associated from the active configuration
1760 * before we apply the new config */
1761 if (iwl_is_associated(priv, IWL_RXON_CTX_BSS) && new_assoc) {
1762 IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
1763 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1766 * reserved4 and 5 could have been filled by the iwlcore code.
1767 * Let's clear them before pushing to the 3945.
1769 active_rxon->reserved4 = 0;
1770 active_rxon->reserved5 = 0;
1771 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
1772 sizeof(struct iwl3945_rxon_cmd),
1773 &priv->contexts[IWL_RXON_CTX_BSS].active);
1775 /* If the mask clearing failed then we set
1776 * active_rxon back to what it was previously */
1778 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
1779 IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
1780 "configuration (%d).\n", rc);
1783 iwl_clear_ucode_stations(priv,
1784 &priv->contexts[IWL_RXON_CTX_BSS]);
1785 iwl_restore_stations(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1788 IWL_DEBUG_INFO(priv, "Sending RXON\n"
1789 "* with%s RXON_FILTER_ASSOC_MSK\n"
1792 (new_assoc ? "" : "out"),
1793 le16_to_cpu(staging_rxon->channel),
1794 staging_rxon->bssid_addr);
1797 * reserved4 and 5 could have been filled by the iwlcore code.
1798 * Let's clear them before pushing to the 3945.
1800 staging_rxon->reserved4 = 0;
1801 staging_rxon->reserved5 = 0;
1803 iwl_set_rxon_hwcrypto(priv, ctx, !iwl3945_mod_params.sw_crypto);
1805 /* Apply the new configuration */
1806 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
1807 sizeof(struct iwl3945_rxon_cmd),
1810 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
1814 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1817 iwl_clear_ucode_stations(priv,
1818 &priv->contexts[IWL_RXON_CTX_BSS]);
1819 iwl_restore_stations(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1822 /* If we issue a new RXON command which required a tune then we must
1823 * send a new TXPOWER command or we won't be able to Tx any frames */
1824 rc = iwl_set_tx_power(priv, priv->tx_power_next, true);
1826 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
1830 /* Init the hardware's rate fallback order based on the band */
1831 rc = iwl3945_init_hw_rate_table(priv);
1833 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
1841 * iwl3945_reg_txpower_periodic - called when time to check our temperature.
1843 * -- reset periodic timer
1844 * -- see if temp has changed enough to warrant re-calibration ... if so:
1845 * -- correct coeffs for temp (can reset temp timer)
1846 * -- save this temp as "last",
1847 * -- send new set of gain settings to NIC
1848 * NOTE: This should continue working, even when we're not associated,
1849 * so we can keep our internal table of scan powers current. */
1850 void iwl3945_reg_txpower_periodic(struct iwl_priv *priv)
1852 /* This will kick in the "brute force"
1853 * iwl3945_hw_reg_comp_txpower_temp() below */
1854 if (!is_temp_calib_needed(priv))
1857 /* Set up a new set of temp-adjusted TxPowers, send to NIC.
1858 * This is based *only* on current temperature,
1859 * ignoring any previous power measurements */
1860 iwl3945_hw_reg_comp_txpower_temp(priv);
1863 queue_delayed_work(priv->workqueue,
1864 &priv->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ);
1867 static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work)
1869 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1870 _3945.thermal_periodic.work);
1872 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1875 mutex_lock(&priv->mutex);
1876 iwl3945_reg_txpower_periodic(priv);
1877 mutex_unlock(&priv->mutex);
1881 * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
1884 * This function is used when initializing channel-info structs.
1886 * NOTE: These channel groups do *NOT* match the bands above!
1887 * These channel groups are based on factory-tested channels;
1888 * on A-band, EEPROM's "group frequency" entries represent the top
1889 * channel in each group 1-4. Group 5 All B/G channels are in group 0.
1891 static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv,
1892 const struct iwl_channel_info *ch_info)
1894 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1895 struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
1897 u16 group_index = 0; /* based on factory calib frequencies */
1900 /* Find the group index for the channel ... don't use index 1(?) */
1901 if (is_channel_a_band(ch_info)) {
1902 for (group = 1; group < 5; group++) {
1903 grp_channel = ch_grp[group].group_channel;
1904 if (ch_info->channel <= grp_channel) {
1905 group_index = group;
1909 /* group 4 has a few channels *above* its factory cal freq */
1913 group_index = 0; /* 2.4 GHz, group 0 */
1915 IWL_DEBUG_POWER(priv, "Chnl %d mapped to grp %d\n", ch_info->channel,
1921 * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
1923 * Interpolate to get nominal (i.e. at factory calibration temperature) index
1924 * into radio/DSP gain settings table for requested power.
1926 static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv,
1928 s32 setting_index, s32 *new_index)
1930 const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL;
1931 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1933 s32 power = 2 * requested_power;
1935 const struct iwl3945_eeprom_txpower_sample *samples;
1940 chnl_grp = &eeprom->groups[setting_index];
1941 samples = chnl_grp->samples;
1942 for (i = 0; i < 5; i++) {
1943 if (power == samples[i].power) {
1944 *new_index = samples[i].gain_index;
1949 if (power > samples[1].power) {
1952 } else if (power > samples[2].power) {
1955 } else if (power > samples[3].power) {
1963 denominator = (s32) samples[index1].power - (s32) samples[index0].power;
1964 if (denominator == 0)
1966 gains0 = (s32) samples[index0].gain_index * (1 << 19);
1967 gains1 = (s32) samples[index1].gain_index * (1 << 19);
1968 res = gains0 + (gains1 - gains0) *
1969 ((s32) power - (s32) samples[index0].power) / denominator +
1971 *new_index = res >> 19;
1975 static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
1979 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1980 const struct iwl3945_eeprom_txpower_group *group;
1982 IWL_DEBUG_POWER(priv, "Initializing factory calib info from EEPROM\n");
1984 for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) {
1985 s8 *clip_pwrs; /* table of power levels for each rate */
1986 s8 satur_pwr; /* saturation power for each chnl group */
1987 group = &eeprom->groups[i];
1989 /* sanity check on factory saturation power value */
1990 if (group->saturation_power < 40) {
1991 IWL_WARN(priv, "Error: saturation power is %d, "
1992 "less than minimum expected 40\n",
1993 group->saturation_power);
1998 * Derive requested power levels for each rate, based on
1999 * hardware capabilities (saturation power for band).
2000 * Basic value is 3dB down from saturation, with further
2001 * power reductions for highest 3 data rates. These
2002 * backoffs provide headroom for high rate modulation
2003 * power peaks, without too much distortion (clipping).
2005 /* we'll fill in this array with h/w max power levels */
2006 clip_pwrs = (s8 *) priv->_3945.clip_groups[i].clip_powers;
2008 /* divide factory saturation power by 2 to find -3dB level */
2009 satur_pwr = (s8) (group->saturation_power >> 1);
2011 /* fill in channel group's nominal powers for each rate */
2012 for (rate_index = 0;
2013 rate_index < IWL_RATE_COUNT_3945; rate_index++, clip_pwrs++) {
2014 switch (rate_index) {
2015 case IWL_RATE_36M_INDEX_TABLE:
2016 if (i == 0) /* B/G */
2017 *clip_pwrs = satur_pwr;
2019 *clip_pwrs = satur_pwr - 5;
2021 case IWL_RATE_48M_INDEX_TABLE:
2023 *clip_pwrs = satur_pwr - 7;
2025 *clip_pwrs = satur_pwr - 10;
2027 case IWL_RATE_54M_INDEX_TABLE:
2029 *clip_pwrs = satur_pwr - 9;
2031 *clip_pwrs = satur_pwr - 12;
2034 *clip_pwrs = satur_pwr;
2042 * iwl3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
2044 * Second pass (during init) to set up priv->channel_info
2046 * Set up Tx-power settings in our channel info database for each VALID
2047 * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
2048 * and current temperature.
2050 * Since this is based on current temperature (at init time), these values may
2051 * not be valid for very long, but it gives us a starting/default point,
2052 * and allows us to active (i.e. using Tx) scan.
2054 * This does *not* write values to NIC, just sets up our internal table.
2056 int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
2058 struct iwl_channel_info *ch_info = NULL;
2059 struct iwl3945_channel_power_info *pwr_info;
2060 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
2064 const s8 *clip_pwrs; /* array of power levels for each rate */
2067 u8 pwr_index, base_pwr_index, a_band;
2071 /* save temperature reference,
2072 * so we can determine next time to calibrate */
2073 temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
2074 priv->last_temperature = temperature;
2076 iwl3945_hw_reg_init_channel_groups(priv);
2078 /* initialize Tx power info for each and every channel, 2.4 and 5.x */
2079 for (i = 0, ch_info = priv->channel_info; i < priv->channel_count;
2081 a_band = is_channel_a_band(ch_info);
2082 if (!is_channel_valid(ch_info))
2085 /* find this channel's channel group (*not* "band") index */
2086 ch_info->group_index =
2087 iwl3945_hw_reg_get_ch_grp_index(priv, ch_info);
2089 /* Get this chnlgrp's rate->max/clip-powers table */
2090 clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
2092 /* calculate power index *adjustment* value according to
2093 * diff between current temperature and factory temperature */
2094 delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
2095 eeprom->groups[ch_info->group_index].
2098 IWL_DEBUG_POWER(priv, "Delta index for channel %d: %d [%d]\n",
2099 ch_info->channel, delta_index, temperature +
2102 /* set tx power value for all OFDM rates */
2103 for (rate_index = 0; rate_index < IWL_OFDM_RATES;
2105 s32 uninitialized_var(power_idx);
2108 /* use channel group's clip-power table,
2109 * but don't exceed channel's max power */
2110 s8 pwr = min(ch_info->max_power_avg,
2111 clip_pwrs[rate_index]);
2113 pwr_info = &ch_info->power_info[rate_index];
2115 /* get base (i.e. at factory-measured temperature)
2116 * power table index for this rate's power */
2117 rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr,
2118 ch_info->group_index,
2121 IWL_ERR(priv, "Invalid power index\n");
2124 pwr_info->base_power_index = (u8) power_idx;
2126 /* temperature compensate */
2127 power_idx += delta_index;
2129 /* stay within range of gain table */
2130 power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
2132 /* fill 1 OFDM rate's iwl3945_channel_power_info struct */
2133 pwr_info->requested_power = pwr;
2134 pwr_info->power_table_index = (u8) power_idx;
2135 pwr_info->tpc.tx_gain =
2136 power_gain_table[a_band][power_idx].tx_gain;
2137 pwr_info->tpc.dsp_atten =
2138 power_gain_table[a_band][power_idx].dsp_atten;
2141 /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
2142 pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
2143 power = pwr_info->requested_power +
2144 IWL_CCK_FROM_OFDM_POWER_DIFF;
2145 pwr_index = pwr_info->power_table_index +
2146 IWL_CCK_FROM_OFDM_INDEX_DIFF;
2147 base_pwr_index = pwr_info->base_power_index +
2148 IWL_CCK_FROM_OFDM_INDEX_DIFF;
2150 /* stay within table range */
2151 pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index);
2152 gain = power_gain_table[a_band][pwr_index].tx_gain;
2153 dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
2155 /* fill each CCK rate's iwl3945_channel_power_info structure
2156 * NOTE: All CCK-rate Txpwrs are the same for a given chnl!
2157 * NOTE: CCK rates start at end of OFDM rates! */
2158 for (rate_index = 0;
2159 rate_index < IWL_CCK_RATES; rate_index++) {
2160 pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
2161 pwr_info->requested_power = power;
2162 pwr_info->power_table_index = pwr_index;
2163 pwr_info->base_power_index = base_pwr_index;
2164 pwr_info->tpc.tx_gain = gain;
2165 pwr_info->tpc.dsp_atten = dsp_atten;
2168 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
2169 for (scan_tbl_index = 0;
2170 scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
2171 s32 actual_index = (scan_tbl_index == 0) ?
2172 IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
2173 iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
2174 actual_index, clip_pwrs, ch_info, a_band);
2181 int iwl3945_hw_rxq_stop(struct iwl_priv *priv)
2185 iwl_write_direct32(priv, FH39_RCSR_CONFIG(0), 0);
2186 rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS,
2187 FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
2189 IWL_ERR(priv, "Can't stop Rx DMA.\n");
2194 int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
2196 int txq_id = txq->q.id;
2198 struct iwl3945_shared *shared_data = priv->_3945.shared_virt;
2200 shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
2202 iwl_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0);
2203 iwl_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0);
2205 iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id),
2206 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
2207 FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
2208 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
2209 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
2210 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
2212 /* fake read to flush all prev. writes */
2213 iwl_read32(priv, FH39_TSSR_CBB_BASE);
2221 static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len)
2225 return sizeof(struct iwl3945_rxon_cmd);
2226 case POWER_TABLE_CMD:
2227 return sizeof(struct iwl3945_powertable_cmd);
2234 static u16 iwl3945_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
2236 struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data;
2237 addsta->mode = cmd->mode;
2238 memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
2239 memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
2240 addsta->station_flags = cmd->station_flags;
2241 addsta->station_flags_msk = cmd->station_flags_msk;
2242 addsta->tid_disable_tx = cpu_to_le16(0);
2243 addsta->rate_n_flags = cmd->rate_n_flags;
2244 addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
2245 addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
2246 addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
2248 return (u16)sizeof(struct iwl3945_addsta_cmd);
2251 static int iwl3945_add_bssid_station(struct iwl_priv *priv,
2252 const u8 *addr, u8 *sta_id_r)
2254 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2257 unsigned long flags;
2260 *sta_id_r = IWL_INVALID_STATION;
2262 ret = iwl_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
2264 IWL_ERR(priv, "Unable to add station %pM\n", addr);
2271 spin_lock_irqsave(&priv->sta_lock, flags);
2272 priv->stations[sta_id].used |= IWL_STA_LOCAL;
2273 spin_unlock_irqrestore(&priv->sta_lock, flags);
2277 static int iwl3945_manage_ibss_station(struct iwl_priv *priv,
2278 struct ieee80211_vif *vif, bool add)
2280 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2284 ret = iwl3945_add_bssid_station(priv, vif->bss_conf.bssid,
2285 &vif_priv->ibss_bssid_sta_id);
2289 iwl3945_sync_sta(priv, vif_priv->ibss_bssid_sta_id,
2290 (priv->band == IEEE80211_BAND_5GHZ) ?
2291 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP);
2292 iwl3945_rate_scale_init(priv->hw, vif_priv->ibss_bssid_sta_id);
2297 return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,
2298 vif->bss_conf.bssid);
2302 * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table
2304 int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
2306 int rc, i, index, prev_index;
2307 struct iwl3945_rate_scaling_cmd rate_cmd = {
2308 .reserved = {0, 0, 0},
2310 struct iwl3945_rate_scaling_info *table = rate_cmd.table;
2312 for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) {
2313 index = iwl3945_rates[i].table_rs_index;
2315 table[index].rate_n_flags =
2316 iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0);
2317 table[index].try_cnt = priv->retry_rate;
2318 prev_index = iwl3945_get_prev_ieee_rate(i);
2319 table[index].next_rate_index =
2320 iwl3945_rates[prev_index].table_rs_index;
2323 switch (priv->band) {
2324 case IEEE80211_BAND_5GHZ:
2325 IWL_DEBUG_RATE(priv, "Select A mode rate scale\n");
2326 /* If one of the following CCK rates is used,
2327 * have it fall back to the 6M OFDM rate */
2328 for (i = IWL_RATE_1M_INDEX_TABLE;
2329 i <= IWL_RATE_11M_INDEX_TABLE; i++)
2330 table[i].next_rate_index =
2331 iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
2333 /* Don't fall back to CCK rates */
2334 table[IWL_RATE_12M_INDEX_TABLE].next_rate_index =
2335 IWL_RATE_9M_INDEX_TABLE;
2337 /* Don't drop out of OFDM rates */
2338 table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
2339 iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
2342 case IEEE80211_BAND_2GHZ:
2343 IWL_DEBUG_RATE(priv, "Select B/G mode rate scale\n");
2344 /* If an OFDM rate is used, have it fall back to the
2347 if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
2348 iwl_is_associated(priv, IWL_RXON_CTX_BSS)) {
2350 index = IWL_FIRST_CCK_RATE;
2351 for (i = IWL_RATE_6M_INDEX_TABLE;
2352 i <= IWL_RATE_54M_INDEX_TABLE; i++)
2353 table[i].next_rate_index =
2354 iwl3945_rates[index].table_rs_index;
2356 index = IWL_RATE_11M_INDEX_TABLE;
2357 /* CCK shouldn't fall back to OFDM... */
2358 table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
2367 /* Update the rate scaling for control frame Tx */
2368 rate_cmd.table_id = 0;
2369 rc = iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
2374 /* Update the rate scaling for data frame Tx */
2375 rate_cmd.table_id = 1;
2376 return iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
2380 /* Called when initializing driver */
2381 int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
2383 memset((void *)&priv->hw_params, 0,
2384 sizeof(struct iwl_hw_params));
2386 priv->_3945.shared_virt =
2387 dma_alloc_coherent(&priv->pci_dev->dev,
2388 sizeof(struct iwl3945_shared),
2389 &priv->_3945.shared_phys, GFP_KERNEL);
2390 if (!priv->_3945.shared_virt) {
2391 IWL_ERR(priv, "failed to allocate pci memory\n");
2395 /* Assign number of Usable TX queues */
2396 priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
2398 priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd);
2399 priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_3K);
2400 priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
2401 priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
2402 priv->hw_params.max_stations = IWL3945_STATION_COUNT;
2403 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWL3945_BROADCAST_ID;
2405 priv->sta_key_max_num = STA_KEY_MAX_NUM;
2407 priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
2408 priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL;
2409 priv->hw_params.beacon_time_tsf_bits = IWL3945_EXT_BEACON_TIME_POS;
2414 unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
2415 struct iwl3945_frame *frame, u8 rate)
2417 struct iwl3945_tx_beacon_cmd *tx_beacon_cmd;
2418 unsigned int frame_size;
2420 tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u;
2421 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
2423 tx_beacon_cmd->tx.sta_id =
2424 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id;
2425 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2427 frame_size = iwl3945_fill_beacon_frame(priv,
2428 tx_beacon_cmd->frame,
2429 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
2431 BUG_ON(frame_size > MAX_MPDU_SIZE);
2432 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
2434 tx_beacon_cmd->tx.rate = rate;
2435 tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
2436 TX_CMD_FLG_TSF_MSK);
2438 /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
2439 tx_beacon_cmd->tx.supp_rates[0] =
2440 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2442 tx_beacon_cmd->tx.supp_rates[1] =
2443 (IWL_CCK_BASIC_RATES_MASK & 0xF);
2445 return sizeof(struct iwl3945_tx_beacon_cmd) + frame_size;
2448 void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv)
2450 priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx;
2451 priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx;
2454 void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv)
2456 INIT_DELAYED_WORK(&priv->_3945.thermal_periodic,
2457 iwl3945_bg_reg_txpower_periodic);
2460 void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv)
2462 cancel_delayed_work(&priv->_3945.thermal_periodic);
2465 /* check contents of special bootstrap uCode SRAM */
2466 static int iwl3945_verify_bsm(struct iwl_priv *priv)
2468 __le32 *image = priv->ucode_boot.v_addr;
2469 u32 len = priv->ucode_boot.len;
2473 IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
2475 /* verify BSM SRAM contents */
2476 val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG);
2477 for (reg = BSM_SRAM_LOWER_BOUND;
2478 reg < BSM_SRAM_LOWER_BOUND + len;
2479 reg += sizeof(u32), image++) {
2480 val = iwl_read_prph(priv, reg);
2481 if (val != le32_to_cpu(*image)) {
2482 IWL_ERR(priv, "BSM uCode verification failed at "
2483 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
2484 BSM_SRAM_LOWER_BOUND,
2485 reg - BSM_SRAM_LOWER_BOUND, len,
2486 val, le32_to_cpu(*image));
2491 IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
2497 /******************************************************************************
2499 * EEPROM related functions
2501 ******************************************************************************/
2504 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
2505 * embedded controller) as EEPROM reader; each read is a series of pulses
2506 * to/from the EEPROM chip, not a single event, so even reads could conflict
2507 * if they weren't arbitrated by some ownership mechanism. Here, the driver
2508 * simply claims ownership, which should be safe when this function is called
2509 * (i.e. before loading uCode!).
2511 static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
2513 _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
2518 static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv)
2524 * iwl3945_load_bsm - Load bootstrap instructions
2528 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
2529 * in special SRAM that does not power down during RFKILL. When powering back
2530 * up after power-saving sleeps (or during initial uCode load), the BSM loads
2531 * the bootstrap program into the on-board processor, and starts it.
2533 * The bootstrap program loads (via DMA) instructions and data for a new
2534 * program from host DRAM locations indicated by the host driver in the
2535 * BSM_DRAM_* registers. Once the new program is loaded, it starts
2538 * When initializing the NIC, the host driver points the BSM to the
2539 * "initialize" uCode image. This uCode sets up some internal data, then
2540 * notifies host via "initialize alive" that it is complete.
2542 * The host then replaces the BSM_DRAM_* pointer values to point to the
2543 * normal runtime uCode instructions and a backup uCode data cache buffer
2544 * (filled initially with starting data values for the on-board processor),
2545 * then triggers the "initialize" uCode to load and launch the runtime uCode,
2546 * which begins normal operation.
2548 * When doing a power-save shutdown, runtime uCode saves data SRAM into
2549 * the backup data cache in DRAM before SRAM is powered down.
2551 * When powering back up, the BSM loads the bootstrap program. This reloads
2552 * the runtime uCode instructions and the backup data cache into SRAM,
2553 * and re-launches the runtime uCode from where it left off.
2555 static int iwl3945_load_bsm(struct iwl_priv *priv)
2557 __le32 *image = priv->ucode_boot.v_addr;
2558 u32 len = priv->ucode_boot.len;
2568 IWL_DEBUG_INFO(priv, "Begin load bsm\n");
2570 /* make sure bootstrap program is no larger than BSM's SRAM size */
2571 if (len > IWL39_MAX_BSM_SIZE)
2574 /* Tell bootstrap uCode where to find the "Initialize" uCode
2575 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
2576 * NOTE: iwl3945_initialize_alive_start() will replace these values,
2577 * after the "initialize" uCode has run, to point to
2578 * runtime/protocol instructions and backup data cache. */
2579 pinst = priv->ucode_init.p_addr;
2580 pdata = priv->ucode_init_data.p_addr;
2581 inst_len = priv->ucode_init.len;
2582 data_len = priv->ucode_init_data.len;
2584 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
2585 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
2586 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
2587 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
2589 /* Fill BSM memory with bootstrap instructions */
2590 for (reg_offset = BSM_SRAM_LOWER_BOUND;
2591 reg_offset < BSM_SRAM_LOWER_BOUND + len;
2592 reg_offset += sizeof(u32), image++)
2593 _iwl_write_prph(priv, reg_offset,
2594 le32_to_cpu(*image));
2596 rc = iwl3945_verify_bsm(priv);
2600 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
2601 iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
2602 iwl_write_prph(priv, BSM_WR_MEM_DST_REG,
2603 IWL39_RTC_INST_LOWER_BOUND);
2604 iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
2606 /* Load bootstrap code into instruction SRAM now,
2607 * to prepare to load "initialize" uCode */
2608 iwl_write_prph(priv, BSM_WR_CTRL_REG,
2609 BSM_WR_CTRL_REG_BIT_START);
2611 /* Wait for load of bootstrap uCode to finish */
2612 for (i = 0; i < 100; i++) {
2613 done = iwl_read_prph(priv, BSM_WR_CTRL_REG);
2614 if (!(done & BSM_WR_CTRL_REG_BIT_START))
2619 IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
2621 IWL_ERR(priv, "BSM write did not complete!\n");
2625 /* Enable future boot loads whenever power management unit triggers it
2626 * (e.g. when powering back up after power-save shutdown) */
2627 iwl_write_prph(priv, BSM_WR_CTRL_REG,
2628 BSM_WR_CTRL_REG_BIT_START_EN);
2633 static struct iwl_hcmd_ops iwl3945_hcmd = {
2634 .rxon_assoc = iwl3945_send_rxon_assoc,
2635 .commit_rxon = iwl3945_commit_rxon,
2636 .send_bt_config = iwl_send_bt_config,
2639 static struct iwl_lib_ops iwl3945_lib = {
2640 .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd,
2641 .txq_free_tfd = iwl3945_hw_txq_free_tfd,
2642 .txq_init = iwl3945_hw_tx_queue_init,
2643 .load_ucode = iwl3945_load_bsm,
2644 .dump_nic_event_log = iwl3945_dump_nic_event_log,
2645 .dump_nic_error_log = iwl3945_dump_nic_error_log,
2647 .init = iwl3945_apm_init,
2648 .config = iwl3945_nic_config,
2651 .regulatory_bands = {
2652 EEPROM_REGULATORY_BAND_1_CHANNELS,
2653 EEPROM_REGULATORY_BAND_2_CHANNELS,
2654 EEPROM_REGULATORY_BAND_3_CHANNELS,
2655 EEPROM_REGULATORY_BAND_4_CHANNELS,
2656 EEPROM_REGULATORY_BAND_5_CHANNELS,
2657 EEPROM_REGULATORY_BAND_NO_HT40,
2658 EEPROM_REGULATORY_BAND_NO_HT40,
2660 .acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
2661 .release_semaphore = iwl3945_eeprom_release_semaphore,
2662 .query_addr = iwlcore_eeprom_query_addr,
2664 .send_tx_power = iwl3945_send_tx_power,
2665 .is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr,
2667 .isr = iwl_isr_legacy,
2671 .rx_stats_read = iwl3945_ucode_rx_stats_read,
2672 .tx_stats_read = iwl3945_ucode_tx_stats_read,
2673 .general_stats_read = iwl3945_ucode_general_stats_read,
2677 static const struct iwl_legacy_ops iwl3945_legacy_ops = {
2678 .post_associate = iwl3945_post_associate,
2679 .config_ap = iwl3945_config_ap,
2680 .manage_ibss_station = iwl3945_manage_ibss_station,
2683 static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
2684 .get_hcmd_size = iwl3945_get_hcmd_size,
2685 .build_addsta_hcmd = iwl3945_build_addsta_hcmd,
2686 .tx_cmd_protection = iwl_legacy_tx_cmd_protection,
2687 .request_scan = iwl3945_request_scan,
2688 .post_scan = iwl3945_post_scan,
2691 static const struct iwl_ops iwl3945_ops = {
2692 .lib = &iwl3945_lib,
2693 .hcmd = &iwl3945_hcmd,
2694 .utils = &iwl3945_hcmd_utils,
2695 .led = &iwl3945_led_ops,
2696 .legacy = &iwl3945_legacy_ops,
2697 .ieee80211_ops = &iwl3945_hw_ops,
2700 static struct iwl_base_params iwl3945_base_params = {
2701 .eeprom_size = IWL3945_EEPROM_IMG_SIZE,
2702 .num_of_queues = IWL39_NUM_QUEUES,
2703 .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
2706 .use_isr_legacy = true,
2707 .led_compensation = 64,
2708 .broken_powersave = true,
2709 .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
2710 .wd_timeout = IWL_DEF_WD_TIMEOUT,
2711 .max_event_log_size = 512,
2712 .tx_power_by_driver = true,
2715 static struct iwl_cfg iwl3945_bg_cfg = {
2717 .fw_name_pre = IWL3945_FW_PRE,
2718 .ucode_api_max = IWL3945_UCODE_API_MAX,
2719 .ucode_api_min = IWL3945_UCODE_API_MIN,
2721 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
2722 .ops = &iwl3945_ops,
2723 .mod_params = &iwl3945_mod_params,
2724 .base_params = &iwl3945_base_params,
2725 .led_mode = IWL_LED_BLINK,
2728 static struct iwl_cfg iwl3945_abg_cfg = {
2730 .fw_name_pre = IWL3945_FW_PRE,
2731 .ucode_api_max = IWL3945_UCODE_API_MAX,
2732 .ucode_api_min = IWL3945_UCODE_API_MIN,
2733 .sku = IWL_SKU_A|IWL_SKU_G,
2734 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
2735 .ops = &iwl3945_ops,
2736 .mod_params = &iwl3945_mod_params,
2737 .base_params = &iwl3945_base_params,
2738 .led_mode = IWL_LED_BLINK,
2741 DEFINE_PCI_DEVICE_TABLE(iwl3945_hw_card_ids) = {
2742 {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)},
2743 {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)},
2744 {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)},
2745 {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)},
2746 {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)},
2747 {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)},
2751 MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids);