drivers/net/wireless/iwlegacy/iwl-3945.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2011 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/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>
  42
  43 #include "iwl-fh.h"
  44 #include "iwl-3945-fh.h"
  45 #include "iwl-commands.h"
  46 #include "iwl-sta.h"
  47 #include "iwl-3945.h"
  48 #include "iwl-eeprom.h"
  49 #include "iwl-core.h"
  50 #include "iwl-helpers.h"
  51 #include "iwl-led.h"
  52 #include "iwl-3945-led.h"
  53 #include "iwl-3945-debugfs.h"
  54
  55 #define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np)    \
  56         [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP,   \
  57                                     IWL_RATE_##r##M_IEEE,   \
  58                                     IWL_RATE_##ip##M_INDEX, \
  59                                     IWL_RATE_##in##M_INDEX, \
  60                                     IWL_RATE_##rp##M_INDEX, \
  61                                     IWL_RATE_##rn##M_INDEX, \
  62                                     IWL_RATE_##pp##M_INDEX, \
  63                                     IWL_RATE_##np##M_INDEX, \
  64                                     IWL_RATE_##r##M_INDEX_TABLE, \
  65                                     IWL_RATE_##ip##M_INDEX_TABLE }
  66
  67 /*
  68  * Parameter order:
  69  *   rate, prev rate, next rate, prev tgg rate, next tgg rate
  70  *
  71  * If there isn't a valid next or previous rate then INV is used which
  72  * maps to IWL_RATE_INVALID
  73  *
  74  */
  75 const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = {
  76         IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2),    /*  1mbps */
  77         IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5),          /*  2mbps */
  78         IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11),        /*5.5mbps */
  79         IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18),      /* 11mbps */
  80         IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11),        /*  6mbps */
  81         IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11),       /*  9mbps */
  82         IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18),   /* 12mbps */
  83         IWL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24),   /* 18mbps */
  84         IWL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36),   /* 24mbps */
  85         IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48),   /* 36mbps */
  86         IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54),   /* 48mbps */
  87         IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
  88 };
  89
  90 static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
  91 {
  92         u8 rate = iwl3945_rates[rate_index].prev_ieee;
  93
  94         if (rate == IWL_RATE_INVALID)
  95                 rate = rate_index;
  96         return rate;
  97 }
  98
  99 /* 1 = enable the iwl3945_disable_events() function */
 100 #define IWL_EVT_DISABLE (0)
 101 #define IWL_EVT_DISABLE_SIZE (1532/32)
 102
 103 /**
 104  * iwl3945_disable_events - Disable selected events in uCode event log
 105  *
 106  * Disable an event by writing "1"s into "disable"
 107  *   bitmap in SRAM.  Bit position corresponds to Event # (id/type).
 108  *   Default values of 0 enable uCode events to be logged.
 109  * Use for only special debugging.  This function is just a placeholder as-is,
 110  *   you'll need to provide the special bits! ...
 111  *   ... and set IWL_EVT_DISABLE to 1. */
 112 void iwl3945_disable_events(struct iwl_priv *priv)
 113 {
 114         int i;
 115         u32 base;               /* SRAM address of event log header */
 116         u32 disable_ptr;        /* SRAM address of event-disable bitmap array */
 117         u32 array_size;         /* # of u32 entries in array */
 118         static const u32 evt_disable[IWL_EVT_DISABLE_SIZE] = {
 119                 0x00000000,     /*   31 -    0  Event id numbers */
 120                 0x00000000,     /*   63 -   32 */
 121                 0x00000000,     /*   95 -   64 */
 122                 0x00000000,     /*  127 -   96 */
 123                 0x00000000,     /*  159 -  128 */
 124                 0x00000000,     /*  191 -  160 */
 125                 0x00000000,     /*  223 -  192 */
 126                 0x00000000,     /*  255 -  224 */
 127                 0x00000000,     /*  287 -  256 */
 128                 0x00000000,     /*  319 -  288 */
 129                 0x00000000,     /*  351 -  320 */
 130                 0x00000000,     /*  383 -  352 */
 131                 0x00000000,     /*  415 -  384 */
 132                 0x00000000,     /*  447 -  416 */
 133                 0x00000000,     /*  479 -  448 */
 134                 0x00000000,     /*  511 -  480 */
 135                 0x00000000,     /*  543 -  512 */
 136                 0x00000000,     /*  575 -  544 */
 137                 0x00000000,     /*  607 -  576 */
 138                 0x00000000,     /*  639 -  608 */
 139                 0x00000000,     /*  671 -  640 */
 140                 0x00000000,     /*  703 -  672 */
 141                 0x00000000,     /*  735 -  704 */
 142                 0x00000000,     /*  767 -  736 */
 143                 0x00000000,     /*  799 -  768 */
 144                 0x00000000,     /*  831 -  800 */
 145                 0x00000000,     /*  863 -  832 */
 146                 0x00000000,     /*  895 -  864 */
 147                 0x00000000,     /*  927 -  896 */
 148                 0x00000000,     /*  959 -  928 */
 149                 0x00000000,     /*  991 -  960 */
 150                 0x00000000,     /* 1023 -  992 */
 151                 0x00000000,     /* 1055 - 1024 */
 152                 0x00000000,     /* 1087 - 1056 */
 153                 0x00000000,     /* 1119 - 1088 */
 154                 0x00000000,     /* 1151 - 1120 */
 155                 0x00000000,     /* 1183 - 1152 */
 156                 0x00000000,     /* 1215 - 1184 */
 157                 0x00000000,     /* 1247 - 1216 */
 158                 0x00000000,     /* 1279 - 1248 */
 159                 0x00000000,     /* 1311 - 1280 */
 160                 0x00000000,     /* 1343 - 1312 */
 161                 0x00000000,     /* 1375 - 1344 */
 162                 0x00000000,     /* 1407 - 1376 */
 163                 0x00000000,     /* 1439 - 1408 */
 164                 0x00000000,     /* 1471 - 1440 */
 165                 0x00000000,     /* 1503 - 1472 */
 166         };
 167
 168         base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
 169         if (!iwl3945_hw_valid_rtc_data_addr(base)) {
 170                 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
 171                 return;
 172         }
 173
 174         disable_ptr = iwl_legacy_read_targ_mem(priv, base + (4 * sizeof(u32)));
 175         array_size = iwl_legacy_read_targ_mem(priv, base + (5 * sizeof(u32)));
 176
 177         if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) {
 178                 IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n",
 179                                disable_ptr);
 180                 for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++)
 181                         iwl_legacy_write_targ_mem(priv,
 182                                            disable_ptr + (i * sizeof(u32)),
 183                                            evt_disable[i]);
 184
 185         } else {
 186                 IWL_DEBUG_INFO(priv, "Selected uCode log events may be disabled\n");
 187                 IWL_DEBUG_INFO(priv, "  by writing \"1\"s into disable bitmap\n");
 188                 IWL_DEBUG_INFO(priv, "  in SRAM at 0x%x, size %d u32s\n",
 189                                disable_ptr, array_size);
 190         }
 191
 192 }
 193
 194 static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
 195 {
 196         int idx;
 197
 198         for (idx = 0; idx < IWL_RATE_COUNT_3945; idx++)
 199                 if (iwl3945_rates[idx].plcp == plcp)
 200                         return idx;
 201         return -1;
 202 }
 203
 204 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
 205 #define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x
 206
 207 static const char *iwl3945_get_tx_fail_reason(u32 status)
 208 {
 209         switch (status & TX_STATUS_MSK) {
 210         case TX_3945_STATUS_SUCCESS:
 211                 return "SUCCESS";
 212                 TX_STATUS_ENTRY(SHORT_LIMIT);
 213                 TX_STATUS_ENTRY(LONG_LIMIT);
 214                 TX_STATUS_ENTRY(FIFO_UNDERRUN);
 215                 TX_STATUS_ENTRY(MGMNT_ABORT);
 216                 TX_STATUS_ENTRY(NEXT_FRAG);
 217                 TX_STATUS_ENTRY(LIFE_EXPIRE);
 218                 TX_STATUS_ENTRY(DEST_PS);
 219                 TX_STATUS_ENTRY(ABORTED);
 220                 TX_STATUS_ENTRY(BT_RETRY);
 221                 TX_STATUS_ENTRY(STA_INVALID);
 222                 TX_STATUS_ENTRY(FRAG_DROPPED);
 223                 TX_STATUS_ENTRY(TID_DISABLE);
 224                 TX_STATUS_ENTRY(FRAME_FLUSHED);
 225                 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
 226                 TX_STATUS_ENTRY(TX_LOCKED);
 227                 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
 228         }
 229
 230         return "UNKNOWN";
 231 }
 232 #else
 233 static inline const char *iwl3945_get_tx_fail_reason(u32 status)
 234 {
 235         return "";
 236 }
 237 #endif
 238
 239 /*
 240  * get ieee prev rate from rate scale table.
 241  * for A and B mode we need to overright prev
 242  * value
 243  */
 244 int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate)
 245 {
 246         int next_rate = iwl3945_get_prev_ieee_rate(rate);
 247
 248         switch (priv->band) {
 249         case IEEE80211_BAND_5GHZ:
 250                 if (rate == IWL_RATE_12M_INDEX)
 251                         next_rate = IWL_RATE_9M_INDEX;
 252                 else if (rate == IWL_RATE_6M_INDEX)
 253                         next_rate = IWL_RATE_6M_INDEX;
 254                 break;
 255         case IEEE80211_BAND_2GHZ:
 256                 if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
 257                     iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
 258                         if (rate == IWL_RATE_11M_INDEX)
 259                                 next_rate = IWL_RATE_5M_INDEX;
 260                 }
 261                 break;
 262
 263         default:
 264                 break;
 265         }
 266
 267         return next_rate;
 268 }
 269
 270
 271 /**
 272  * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
 273  *
 274  * When FW advances 'R' index, all entries between old and new 'R' index
 275  * need to be reclaimed. As result, some free space forms. If there is
 276  * enough free space (> low mark), wake the stack that feeds us.
 277  */
 278 static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
 279                                      int txq_id, int index)
 280 {
 281         struct iwl_tx_queue *txq = &priv->txq[txq_id];
 282         struct iwl_queue *q = &txq->q;
 283         struct iwl_tx_info *tx_info;
 284
 285         BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM);
 286
 287         for (index = iwl_legacy_queue_inc_wrap(index, q->n_bd);
 288                 q->read_ptr != index;
 289                 q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
 290
 291                 tx_info = &txq->txb[txq->q.read_ptr];
 292                 ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb);
 293                 tx_info->skb = NULL;
 294                 priv->cfg->ops->lib->txq_free_tfd(priv, txq);
 295         }
 296
 297         if (iwl_legacy_queue_space(q) > q->low_mark && (txq_id >= 0) &&
 298                         (txq_id != IWL39_CMD_QUEUE_NUM) &&
 299                         priv->mac80211_registered)
 300                 iwl_legacy_wake_queue(priv, txq);
 301 }
 302
 303 /**
 304  * iwl3945_rx_reply_tx - Handle Tx response
 305  */
 306 static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
 307                                 struct iwl_rx_mem_buffer *rxb)
 308 {
 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);
 317         int rate_idx;
 318         int fail;
 319
 320         if ((index >= txq->q.n_bd) || (iwl_legacy_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,
 324                           txq->q.read_ptr);
 325                 return;
 326         }
 327
 328         txq->time_stamp = jiffies;
 329         info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
 330         ieee80211_tx_info_clear_status(info);
 331
 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;
 336
 337         fail = tx_resp->failure_frame;
 338
 339         info->status.rates[0].idx = rate_idx;
 340         info->status.rates[0].count = fail + 1; /* add final attempt */
 341
 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;
 345
 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);
 349
 350         IWL_DEBUG_TX_REPLY(priv, "Tx queue reclaim %d\n", index);
 351         iwl3945_tx_queue_reclaim(priv, txq_id, index);
 352
 353         if (status & TX_ABORT_REQUIRED_MSK)
 354                 IWL_ERR(priv, "TODO:  Implement Tx ABORT REQUIRED!!!\n");
 355 }
 356
 357
 358
 359 /*****************************************************************************
 360  *
 361  * Intel PRO/Wireless 3945ABG/BG Network Connection
 362  *
 363  *  RX handler implementations
 364  *
 365  *****************************************************************************/
 366 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
 367 static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
 368                                             __le32 *stats)
 369 {
 370         int i;
 371         __le32 *prev_stats;
 372         u32 *accum_stats;
 373         u32 *delta, *max_delta;
 374
 375         prev_stats = (__le32 *)&priv->_3945.statistics;
 376         accum_stats = (u32 *)&priv->_3945.accum_statistics;
 377         delta = (u32 *)&priv->_3945.delta_statistics;
 378         max_delta = (u32 *)&priv->_3945.max_delta;
 379
 380         for (i = sizeof(__le32); i < sizeof(struct iwl3945_notif_statistics);
 381              i += sizeof(__le32), stats++, prev_stats++, delta++,
 382              max_delta++, accum_stats++) {
 383                 if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
 384                         *delta = (le32_to_cpu(*stats) -
 385                                 le32_to_cpu(*prev_stats));
 386                         *accum_stats += *delta;
 387                         if (*delta > *max_delta)
 388                                 *max_delta = *delta;
 389                 }
 390         }
 391
 392         /* reset accumulative statistics for "no-counter" type statistics */
 393         priv->_3945.accum_statistics.general.temperature =
 394                 priv->_3945.statistics.general.temperature;
 395         priv->_3945.accum_statistics.general.ttl_timestamp =
 396                 priv->_3945.statistics.general.ttl_timestamp;
 397 }
 398 #endif
 399
 400 void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
 401                 struct iwl_rx_mem_buffer *rxb)
 402 {
 403         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 404
 405         IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
 406                      (int)sizeof(struct iwl3945_notif_statistics),
 407                      le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
 408 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
 409         iwl3945_accumulative_statistics(priv, (__le32 *)&pkt->u.raw);
 410 #endif
 411
 412         memcpy(&priv->_3945.statistics, pkt->u.raw, sizeof(priv->_3945.statistics));
 413 }
 414
 415 void iwl3945_reply_statistics(struct iwl_priv *priv,
 416                               struct iwl_rx_mem_buffer *rxb)
 417 {
 418         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 419         __le32 *flag = (__le32 *)&pkt->u.raw;
 420
 421         if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) {
 422 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
 423                 memset(&priv->_3945.accum_statistics, 0,
 424                         sizeof(struct iwl3945_notif_statistics));
 425                 memset(&priv->_3945.delta_statistics, 0,
 426                         sizeof(struct iwl3945_notif_statistics));
 427                 memset(&priv->_3945.max_delta, 0,
 428                         sizeof(struct iwl3945_notif_statistics));
 429 #endif
 430                 IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
 431         }
 432         iwl3945_hw_rx_statistics(priv, rxb);
 433 }
 434
 435
 436 /******************************************************************************
 437  *
 438  * Misc. internal state and helper functions
 439  *
 440  ******************************************************************************/
 441
 442 /* This is necessary only for a number of statistics, see the caller. */
 443 static int iwl3945_is_network_packet(struct iwl_priv *priv,
 444                 struct ieee80211_hdr *header)
 445 {
 446         /* Filter incoming packets to determine if they are targeted toward
 447          * this network, discarding packets coming from ourselves */
 448         switch (priv->iw_mode) {
 449         case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source    | BSSID */
 450                 /* packets to our IBSS update information */
 451                 return !compare_ether_addr(header->addr3, priv->bssid);
 452         case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
 453                 /* packets to our IBSS update information */
 454                 return !compare_ether_addr(header->addr2, priv->bssid);
 455         default:
 456                 return 1;
 457         }
 458 }
 459
 460 static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
 461                                    struct iwl_rx_mem_buffer *rxb,
 462                                    struct ieee80211_rx_status *stats)
 463 {
 464         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 465         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
 466         struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
 467         struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
 468         u16 len = le16_to_cpu(rx_hdr->len);
 469         struct sk_buff *skb;
 470         __le16 fc = hdr->frame_control;
 471
 472         /* We received data from the HW, so stop the watchdog */
 473         if (unlikely(len + IWL39_RX_FRAME_SIZE >
 474                      PAGE_SIZE << priv->hw_params.rx_page_order)) {
 475                 IWL_DEBUG_DROP(priv, "Corruption detected!\n");
 476                 return;
 477         }
 478
 479         /* We only process data packets if the interface is open */
 480         if (unlikely(!priv->is_open)) {
 481                 IWL_DEBUG_DROP_LIMIT(priv,
 482                         "Dropping packet while interface is not open.\n");
 483                 return;
 484         }
 485
 486         skb = dev_alloc_skb(128);
 487         if (!skb) {
 488                 IWL_ERR(priv, "dev_alloc_skb failed\n");
 489                 return;
 490         }
 491
 492         if (!iwl3945_mod_params.sw_crypto)
 493                 iwl_legacy_set_decrypted_flag(priv,
 494                                        (struct ieee80211_hdr *)rxb_addr(rxb),
 495                                        le32_to_cpu(rx_end->status), stats);
 496
 497         skb_add_rx_frag(skb, 0, rxb->page,
 498                         (void *)rx_hdr->payload - (void *)pkt, len);
 499
 500         iwl_legacy_update_stats(priv, false, fc, len);
 501         memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
 502
 503         ieee80211_rx(priv->hw, skb);
 504         priv->alloc_rxb_page--;
 505         rxb->page = NULL;
 506 }
 507
 508 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
 509
 510 static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
 511                                 struct iwl_rx_mem_buffer *rxb)
 512 {
 513         struct ieee80211_hdr *header;
 514         struct ieee80211_rx_status rx_status;
 515         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 516         struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
 517         struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
 518         struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
 519         u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg);
 520         u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff);
 521         u8 network_packet;
 522
 523         rx_status.flag = 0;
 524         rx_status.mactime = le64_to_cpu(rx_end->timestamp);
 525         rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
 526                                 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
 527         rx_status.freq =
 528                 ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel),
 529                                                rx_status.band);
 530
 531         rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate);
 532         if (rx_status.band == IEEE80211_BAND_5GHZ)
 533                 rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
 534
 535         rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) &
 536                                         RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
 537
 538         /* set the preamble flag if appropriate */
 539         if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
 540                 rx_status.flag |= RX_FLAG_SHORTPRE;
 541
 542         if ((unlikely(rx_stats->phy_count > 20))) {
 543                 IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
 544                                 rx_stats->phy_count);
 545                 return;
 546         }
 547
 548         if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR)
 549             || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
 550                 IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
 551                 return;
 552         }
 553
 554
 555
 556         /* Convert 3945's rssi indicator to dBm */
 557         rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET;
 558
 559         IWL_DEBUG_STATS(priv, "Rssi %d sig_avg %d noise_diff %d\n",
 560                         rx_status.signal, rx_stats_sig_avg,
 561                         rx_stats_noise_diff);
 562
 563         header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
 564
 565         network_packet = iwl3945_is_network_packet(priv, header);
 566
 567         IWL_DEBUG_STATS_LIMIT(priv, "[%c] %d RSSI:%d Signal:%u, Rate:%u\n",
 568                               network_packet ? '*' : ' ',
 569                               le16_to_cpu(rx_hdr->channel),
 570                               rx_status.signal, rx_status.signal,
 571                               rx_status.rate_idx);
 572
 573         iwl_legacy_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len),
 574                                                 header);
 575
 576         if (network_packet) {
 577                 priv->_3945.last_beacon_time =
 578                         le32_to_cpu(rx_end->beacon_timestamp);
 579                 priv->_3945.last_tsf = le64_to_cpu(rx_end->timestamp);
 580                 priv->_3945.last_rx_rssi = rx_status.signal;
 581         }
 582
 583         iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
 584 }
 585
 586 int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 587                                      struct iwl_tx_queue *txq,
 588                                      dma_addr_t addr, u16 len, u8 reset, u8 pad)
 589 {
 590         int count;
 591         struct iwl_queue *q;
 592         struct iwl3945_tfd *tfd, *tfd_tmp;
 593
 594         q = &txq->q;
 595         tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
 596         tfd = &tfd_tmp[q->write_ptr];
 597
 598         if (reset)
 599                 memset(tfd, 0, sizeof(*tfd));
 600
 601         count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
 602
 603         if ((count >= NUM_TFD_CHUNKS) || (count < 0)) {
 604                 IWL_ERR(priv, "Error can not send more than %d chunks\n",
 605                           NUM_TFD_CHUNKS);
 606                 return -EINVAL;
 607         }
 608
 609         tfd->tbs[count].addr = cpu_to_le32(addr);
 610         tfd->tbs[count].len = cpu_to_le32(len);
 611
 612         count++;
 613
 614         tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) |
 615                                          TFD_CTL_PAD_SET(pad));
 616
 617         return 0;
 618 }
 619
 620 /**
 621  * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
 622  *
 623  * Does NOT advance any indexes
 624  */
 625 void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
 626 {
 627         struct iwl3945_tfd *tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
 628         int index = txq->q.read_ptr;
 629         struct iwl3945_tfd *tfd = &tfd_tmp[index];
 630         struct pci_dev *dev = priv->pci_dev;
 631         int i;
 632         int counter;
 633
 634         /* sanity check */
 635         counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
 636         if (counter > NUM_TFD_CHUNKS) {
 637                 IWL_ERR(priv, "Too many chunks: %i\n", counter);
 638                 /* @todo issue fatal error, it is quite serious situation */
 639                 return;
 640         }
 641
 642         /* Unmap tx_cmd */
 643         if (counter)
 644                 pci_unmap_single(dev,
 645                                 dma_unmap_addr(&txq->meta[index], mapping),
 646                                 dma_unmap_len(&txq->meta[index], len),
 647                                 PCI_DMA_TODEVICE);
 648
 649         /* unmap chunks if any */
 650
 651         for (i = 1; i < counter; i++)
 652                 pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
 653                          le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE);
 654
 655         /* free SKB */
 656         if (txq->txb) {
 657                 struct sk_buff *skb;
 658
 659                 skb = txq->txb[txq->q.read_ptr].skb;
 660
 661                 /* can be called from irqs-disabled context */
 662                 if (skb) {
 663                         dev_kfree_skb_any(skb);
 664                         txq->txb[txq->q.read_ptr].skb = NULL;
 665                 }
 666         }
 667 }
 668
 669 /**
 670  * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
 671  *
 672 */
 673 void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 674                                   struct iwl_device_cmd *cmd,
 675                                   struct ieee80211_tx_info *info,
 676                                   struct ieee80211_hdr *hdr,
 677                                   int sta_id, int tx_id)
 678 {
 679         u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value;
 680         u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT_3945);
 681         u16 rate_mask;
 682         int rate;
 683         u8 rts_retry_limit;
 684         u8 data_retry_limit;
 685         __le32 tx_flags;
 686         __le16 fc = hdr->frame_control;
 687         struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
 688
 689         rate = iwl3945_rates[rate_index].plcp;
 690         tx_flags = tx_cmd->tx_flags;
 691
 692         /* We need to figure out how to get the sta->supp_rates while
 693          * in this running context */
 694         rate_mask = IWL_RATES_MASK_3945;
 695
 696         /* Set retry limit on DATA packets and Probe Responses*/
 697         if (ieee80211_is_probe_resp(fc))
 698                 data_retry_limit = 3;
 699         else
 700                 data_retry_limit = IWL_DEFAULT_TX_RETRY;
 701         tx_cmd->data_retry_limit = data_retry_limit;
 702
 703         if (tx_id >= IWL39_CMD_QUEUE_NUM)
 704                 rts_retry_limit = 3;
 705         else
 706                 rts_retry_limit = 7;
 707
 708         if (data_retry_limit < rts_retry_limit)
 709                 rts_retry_limit = data_retry_limit;
 710         tx_cmd->rts_retry_limit = rts_retry_limit;
 711
 712         tx_cmd->rate = rate;
 713         tx_cmd->tx_flags = tx_flags;
 714
 715         /* OFDM */
 716         tx_cmd->supp_rates[0] =
 717            ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
 718
 719         /* CCK */
 720         tx_cmd->supp_rates[1] = (rate_mask & 0xF);
 721
 722         IWL_DEBUG_RATE(priv, "Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
 723                        "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
 724                        tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags),
 725                        tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]);
 726 }
 727
 728 static u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate)
 729 {
 730         unsigned long flags_spin;
 731         struct iwl_station_entry *station;
 732
 733         if (sta_id == IWL_INVALID_STATION)
 734                 return IWL_INVALID_STATION;
 735
 736         spin_lock_irqsave(&priv->sta_lock, flags_spin);
 737         station = &priv->stations[sta_id];
 738
 739         station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
 740         station->sta.rate_n_flags = cpu_to_le16(tx_rate);
 741         station->sta.mode = STA_CONTROL_MODIFY_MSK;
 742         iwl_legacy_send_add_sta(priv, &station->sta, CMD_ASYNC);
 743         spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
 744
 745         IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n",
 746                         sta_id, tx_rate);
 747         return sta_id;
 748 }
 749
 750 static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
 751 {
 752 /*
 753  * (for documentation purposes)
 754  * to set power to V_AUX, do
 755
 756                 if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
 757                         iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
 758                                         APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
 759                                         ~APMG_PS_CTRL_MSK_PWR_SRC);
 760
 761                         iwl_poll_bit(priv, CSR_GPIO_IN,
 762                                      CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
 763                                      CSR_GPIO_IN_BIT_AUX_POWER, 5000);
 764                 }
 765  */
 766
 767         iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
 768                         APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
 769                         ~APMG_PS_CTRL_MSK_PWR_SRC);
 770
 771         iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
 772                      CSR_GPIO_IN_BIT_AUX_POWER, 5000);  /* uS */
 773 }
 774
 775 static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
 776 {
 777         iwl_legacy_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
 778         iwl_legacy_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0),
 779                                         rxq->rb_stts_dma);
 780         iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), 0);
 781         iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0),
 782                 FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
 783                 FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
 784                 FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
 785                 FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
 786                 (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
 787                 FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
 788                 (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
 789                 FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
 790
 791         /* fake read to flush all prev I/O */
 792         iwl_legacy_read_direct32(priv, FH39_RSSR_CTRL);
 793
 794         return 0;
 795 }
 796
 797 static int iwl3945_tx_reset(struct iwl_priv *priv)
 798 {
 799
 800         /* bypass mode */
 801         iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
 802
 803         /* RA 0 is active */
 804         iwl_legacy_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
 805
 806         /* all 6 fifo are active */
 807         iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
 808
 809         iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
 810         iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
 811         iwl_legacy_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
 812         iwl_legacy_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
 813
 814         iwl_legacy_write_direct32(priv, FH39_TSSR_CBB_BASE,
 815                              priv->_3945.shared_phys);
 816
 817         iwl_legacy_write_direct32(priv, FH39_TSSR_MSG_CONFIG,
 818                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
 819                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
 820                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
 821                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
 822                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
 823                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
 824                 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
 825
 826
 827         return 0;
 828 }
 829
 830 /**
 831  * iwl3945_txq_ctx_reset - Reset TX queue context
 832  *
 833  * Destroys all DMA structures and initialize them again
 834  */
 835 static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
 836 {
 837         int rc;
 838         int txq_id, slots_num;
 839
 840         iwl3945_hw_txq_ctx_free(priv);
 841
 842         /* allocate tx queue structure */
 843         rc = iwl_legacy_alloc_txq_mem(priv);
 844         if (rc)
 845                 return rc;
 846
 847         /* Tx CMD queue */
 848         rc = iwl3945_tx_reset(priv);
 849         if (rc)
 850                 goto error;
 851
 852         /* Tx queue(s) */
 853         for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
 854                 slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ?
 855                                 TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
 856                 rc = iwl_legacy_tx_queue_init(priv, &priv->txq[txq_id],
 857                                                 slots_num, txq_id);
 858                 if (rc) {
 859                         IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
 860                         goto error;
 861                 }
 862         }
 863
 864         return rc;
 865
 866  error:
 867         iwl3945_hw_txq_ctx_free(priv);
 868         return rc;
 869 }
 870
 871
 872 /*
 873  * Start up 3945's basic functionality after it has been reset
 874  * (e.g. after platform boot, or shutdown via iwl_legacy_apm_stop())
 875  * NOTE:  This does not load uCode nor start the embedded processor
 876  */
 877 static int iwl3945_apm_init(struct iwl_priv *priv)
 878 {
 879         int ret = iwl_legacy_apm_init(priv);
 880
 881         /* Clear APMG (NIC's internal power management) interrupts */
 882         iwl_legacy_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
 883         iwl_legacy_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
 884
 885         /* Reset radio chip */
 886         iwl_legacy_set_bits_prph(priv, APMG_PS_CTRL_REG,
 887                                 APMG_PS_CTRL_VAL_RESET_REQ);
 888         udelay(5);
 889         iwl_legacy_clear_bits_prph(priv, APMG_PS_CTRL_REG,
 890                                 APMG_PS_CTRL_VAL_RESET_REQ);
 891
 892         return ret;
 893 }
 894
 895 static void iwl3945_nic_config(struct iwl_priv *priv)
 896 {
 897         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
 898         unsigned long flags;
 899         u8 rev_id = priv->pci_dev->revision;
 900
 901         spin_lock_irqsave(&priv->lock, flags);
 902
 903         /* Determine HW type */
 904         IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id);
 905
 906         if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
 907                 IWL_DEBUG_INFO(priv, "RTP type\n");
 908         else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
 909                 IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n");
 910                 iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 911                             CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
 912         } else {
 913                 IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n");
 914                 iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 915                             CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
 916         }
 917
 918         if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
 919                 IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n");
 920                 iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 921                             CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
 922         } else
 923                 IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n");
 924
 925         if ((eeprom->board_revision & 0xF0) == 0xD0) {
 926                 IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
 927                                eeprom->board_revision);
 928                 iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 929                             CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
 930         } else {
 931                 IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
 932                                eeprom->board_revision);
 933                 iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
 934                               CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
 935         }
 936
 937         if (eeprom->almgor_m_version <= 1) {
 938                 iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 939                             CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
 940                 IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n",
 941                                eeprom->almgor_m_version);
 942         } else {
 943                 IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n",
 944                                eeprom->almgor_m_version);
 945                 iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 946                             CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
 947         }
 948         spin_unlock_irqrestore(&priv->lock, flags);
 949
 950         if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
 951                 IWL_DEBUG_RF_KILL(priv, "SW RF KILL supported in EEPROM.\n");
 952
 953         if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
 954                 IWL_DEBUG_RF_KILL(priv, "HW RF KILL supported in EEPROM.\n");
 955 }
 956
 957 int iwl3945_hw_nic_init(struct iwl_priv *priv)
 958 {
 959         int rc;
 960         unsigned long flags;
 961         struct iwl_rx_queue *rxq = &priv->rxq;
 962
 963         spin_lock_irqsave(&priv->lock, flags);
 964         priv->cfg->ops->lib->apm_ops.init(priv);
 965         spin_unlock_irqrestore(&priv->lock, flags);
 966
 967         iwl3945_set_pwr_vmain(priv);
 968
 969         priv->cfg->ops->lib->apm_ops.config(priv);
 970
 971         /* Allocate the RX queue, or reset if it is already allocated */
 972         if (!rxq->bd) {
 973                 rc = iwl_legacy_rx_queue_alloc(priv);
 974                 if (rc) {
 975                         IWL_ERR(priv, "Unable to initialize Rx queue\n");
 976                         return -ENOMEM;
 977                 }
 978         } else
 979                 iwl3945_rx_queue_reset(priv, rxq);
 980
 981         iwl3945_rx_replenish(priv);
 982
 983         iwl3945_rx_init(priv, rxq);
 984
 985
 986         /* Look at using this instead:
 987         rxq->need_update = 1;
 988         iwl_legacy_rx_queue_update_write_ptr(priv, rxq);
 989         */
 990
 991         iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7);
 992
 993         rc = iwl3945_txq_ctx_reset(priv);
 994         if (rc)
 995                 return rc;
 996
 997         set_bit(STATUS_INIT, &priv->status);
 998
 999         return 0;
1000 }
1001
1002 /**
1003  * iwl3945_hw_txq_ctx_free - Free TXQ Context
1004  *
1005  * Destroy all TX DMA queues and structures
1006  */
1007 void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv)
1008 {
1009         int txq_id;
1010
1011         /* Tx queues */
1012         if (priv->txq)
1013                 for (txq_id = 0; txq_id < priv->hw_params.max_txq_num;
1014                      txq_id++)
1015                         if (txq_id == IWL39_CMD_QUEUE_NUM)
1016                                 iwl_legacy_cmd_queue_free(priv);
1017                         else
1018                                 iwl_legacy_tx_queue_free(priv, txq_id);
1019
1020         /* free tx queue structure */
1021         iwl_legacy_txq_mem(priv);
1022 }
1023
1024 void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
1025 {
1026         int txq_id;
1027
1028         /* stop SCD */
1029         iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0);
1030         iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0);
1031
1032         /* reset TFD queues */
1033         for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
1034                 iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
1035                 iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS,
1036                                 FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
1037                                 1000);
1038         }
1039
1040         iwl3945_hw_txq_ctx_free(priv);
1041 }
1042
1043 /**
1044  * iwl3945_hw_reg_adjust_power_by_temp
1045  * return index delta into power gain settings table
1046 */
1047 static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
1048 {
1049         return (new_reading - old_reading) * (-11) / 100;
1050 }
1051
1052 /**
1053  * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range
1054  */
1055 static inline int iwl3945_hw_reg_temp_out_of_range(int temperature)
1056 {
1057         return ((temperature < -260) || (temperature > 25)) ? 1 : 0;
1058 }
1059
1060 int iwl3945_hw_get_temperature(struct iwl_priv *priv)
1061 {
1062         return iwl_read32(priv, CSR_UCODE_DRV_GP2);
1063 }
1064
1065 /**
1066  * iwl3945_hw_reg_txpower_get_temperature
1067  * get the current temperature by reading from NIC
1068 */
1069 static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
1070 {
1071         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1072         int temperature;
1073
1074         temperature = iwl3945_hw_get_temperature(priv);
1075
1076         /* driver's okay range is -260 to +25.
1077          *   human readable okay range is 0 to +285 */
1078         IWL_DEBUG_INFO(priv, "Temperature: %d\n", temperature + IWL_TEMP_CONVERT);
1079
1080         /* handle insane temp reading */
1081         if (iwl3945_hw_reg_temp_out_of_range(temperature)) {
1082                 IWL_ERR(priv, "Error bad temperature value  %d\n", temperature);
1083
1084                 /* if really really hot(?),
1085                  *   substitute the 3rd band/group's temp measured at factory */
1086                 if (priv->last_temperature > 100)
1087                         temperature = eeprom->groups[2].temperature;
1088                 else /* else use most recent "sane" value from driver */
1089                         temperature = priv->last_temperature;
1090         }
1091
1092         return temperature;     /* raw, not "human readable" */
1093 }
1094
1095 /* Adjust Txpower only if temperature variance is greater than threshold.
1096  *
1097  * Both are lower than older versions' 9 degrees */
1098 #define IWL_TEMPERATURE_LIMIT_TIMER   6
1099
1100 /**
1101  * iwl3945_is_temp_calib_needed - determines if new calibration is needed
1102  *
1103  * records new temperature in tx_mgr->temperature.
1104  * replaces tx_mgr->last_temperature *only* if calib needed
1105  *    (assumes caller will actually do the calibration!). */
1106 static int iwl3945_is_temp_calib_needed(struct iwl_priv *priv)
1107 {
1108         int temp_diff;
1109
1110         priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
1111         temp_diff = priv->temperature - priv->last_temperature;
1112
1113         /* get absolute value */
1114         if (temp_diff < 0) {
1115                 IWL_DEBUG_POWER(priv, "Getting cooler, delta %d,\n", temp_diff);
1116                 temp_diff = -temp_diff;
1117         } else if (temp_diff == 0)
1118                 IWL_DEBUG_POWER(priv, "Same temp,\n");
1119         else
1120                 IWL_DEBUG_POWER(priv, "Getting warmer, delta %d,\n", temp_diff);
1121
1122         /* if we don't need calibration, *don't* update last_temperature */
1123         if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) {
1124                 IWL_DEBUG_POWER(priv, "Timed thermal calib not needed\n");
1125                 return 0;
1126         }
1127
1128         IWL_DEBUG_POWER(priv, "Timed thermal calib needed\n");
1129
1130         /* assume that caller will actually do calib ...
1131          *   update the "last temperature" value */
1132         priv->last_temperature = priv->temperature;
1133         return 1;
1134 }
1135
1136 #define IWL_MAX_GAIN_ENTRIES 78
1137 #define IWL_CCK_FROM_OFDM_POWER_DIFF  -5
1138 #define IWL_CCK_FROM_OFDM_INDEX_DIFF (10)
1139
1140 /* radio and DSP power table, each step is 1/2 dB.
1141  * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
1142 static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
1143         {
1144          {251, 127},            /* 2.4 GHz, highest power */
1145          {251, 127},
1146          {251, 127},
1147          {251, 127},
1148          {251, 125},
1149          {251, 110},
1150          {251, 105},
1151          {251, 98},
1152          {187, 125},
1153          {187, 115},
1154          {187, 108},
1155          {187, 99},
1156          {243, 119},
1157          {243, 111},
1158          {243, 105},
1159          {243, 97},
1160          {243, 92},
1161          {211, 106},
1162          {211, 100},
1163          {179, 120},
1164          {179, 113},
1165          {179, 107},
1166          {147, 125},
1167          {147, 119},
1168          {147, 112},
1169          {147, 106},
1170          {147, 101},
1171          {147, 97},
1172          {147, 91},
1173          {115, 107},
1174          {235, 121},
1175          {235, 115},
1176          {235, 109},
1177          {203, 127},
1178          {203, 121},
1179          {203, 115},
1180          {203, 108},
1181          {203, 102},
1182          {203, 96},
1183          {203, 92},
1184          {171, 110},
1185          {171, 104},
1186          {171, 98},
1187          {139, 116},
1188          {227, 125},
1189          {227, 119},
1190          {227, 113},
1191          {227, 107},
1192          {227, 101},
1193          {227, 96},
1194          {195, 113},
1195          {195, 106},
1196          {195, 102},
1197          {195, 95},
1198          {163, 113},
1199          {163, 106},
1200          {163, 102},
1201          {163, 95},
1202          {131, 113},
1203          {131, 106},
1204          {131, 102},
1205          {131, 95},
1206          {99, 113},
1207          {99, 106},
1208          {99, 102},
1209          {99, 95},
1210          {67, 113},
1211          {67, 106},
1212          {67, 102},
1213          {67, 95},
1214          {35, 113},
1215          {35, 106},
1216          {35, 102},
1217          {35, 95},
1218          {3, 113},
1219          {3, 106},
1220          {3, 102},
1221          {3, 95} },             /* 2.4 GHz, lowest power */
1222         {
1223          {251, 127},            /* 5.x GHz, highest power */
1224          {251, 120},
1225          {251, 114},
1226          {219, 119},
1227          {219, 101},
1228          {187, 113},
1229          {187, 102},
1230          {155, 114},
1231          {155, 103},
1232          {123, 117},
1233          {123, 107},
1234          {123, 99},
1235          {123, 92},
1236          {91, 108},
1237          {59, 125},
1238          {59, 118},
1239          {59, 109},
1240          {59, 102},
1241          {59, 96},
1242          {59, 90},
1243          {27, 104},
1244          {27, 98},
1245          {27, 92},
1246          {115, 118},
1247          {115, 111},
1248          {115, 104},
1249          {83, 126},
1250          {83, 121},
1251          {83, 113},
1252          {83, 105},
1253          {83, 99},
1254          {51, 118},
1255          {51, 111},
1256          {51, 104},
1257          {51, 98},
1258          {19, 116},
1259          {19, 109},
1260          {19, 102},
1261          {19, 98},
1262          {19, 93},
1263          {171, 113},
1264          {171, 107},
1265          {171, 99},
1266          {139, 120},
1267          {139, 113},
1268          {139, 107},
1269          {139, 99},
1270          {107, 120},
1271          {107, 113},
1272          {107, 107},
1273          {107, 99},
1274          {75, 120},
1275          {75, 113},
1276          {75, 107},
1277          {75, 99},
1278          {43, 120},
1279          {43, 113},
1280          {43, 107},
1281          {43, 99},
1282          {11, 120},
1283          {11, 113},
1284          {11, 107},
1285          {11, 99},
1286          {131, 107},
1287          {131, 99},
1288          {99, 120},
1289          {99, 113},
1290          {99, 107},
1291          {99, 99},
1292          {67, 120},
1293          {67, 113},
1294          {67, 107},
1295          {67, 99},
1296          {35, 120},
1297          {35, 113},
1298          {35, 107},
1299          {35, 99},
1300          {3, 120} }             /* 5.x GHz, lowest power */
1301 };
1302
1303 static inline u8 iwl3945_hw_reg_fix_power_index(int index)
1304 {
1305         if (index < 0)
1306                 return 0;
1307         if (index >= IWL_MAX_GAIN_ENTRIES)
1308                 return IWL_MAX_GAIN_ENTRIES - 1;
1309         return (u8) index;
1310 }
1311
1312 /* Kick off thermal recalibration check every 60 seconds */
1313 #define REG_RECALIB_PERIOD (60)
1314
1315 /**
1316  * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
1317  *
1318  * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
1319  * or 6 Mbit (OFDM) rates.
1320  */
1321 static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
1322                                s32 rate_index, const s8 *clip_pwrs,
1323                                struct iwl_channel_info *ch_info,
1324                                int band_index)
1325 {
1326         struct iwl3945_scan_power_info *scan_power_info;
1327         s8 power;
1328         u8 power_index;
1329
1330         scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index];
1331
1332         /* use this channel group's 6Mbit clipping/saturation pwr,
1333          *   but cap at regulatory scan power restriction (set during init
1334          *   based on eeprom channel data) for this channel.  */
1335         power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
1336
1337         power = min(power, priv->tx_power_user_lmt);
1338         scan_power_info->requested_power = power;
1339
1340         /* find difference between new scan *power* and current "normal"
1341          *   Tx *power* for 6Mb.  Use this difference (x2) to adjust the
1342          *   current "normal" temperature-compensated Tx power *index* for
1343          *   this rate (1Mb or 6Mb) to yield new temp-compensated scan power
1344          *   *index*. */
1345         power_index = ch_info->power_info[rate_index].power_table_index
1346             - (power - ch_info->power_info
1347                [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
1348
1349         /* store reference index that we use when adjusting *all* scan
1350          *   powers.  So we can accommodate user (all channel) or spectrum
1351          *   management (single channel) power changes "between" temperature
1352          *   feedback compensation procedures.
1353          * don't force fit this reference index into gain table; it may be a
1354          *   negative number.  This will help avoid errors when we're at
1355          *   the lower bounds (highest gains, for warmest temperatures)
1356          *   of the table. */
1357
1358         /* don't exceed table bounds for "real" setting */
1359         power_index = iwl3945_hw_reg_fix_power_index(power_index);
1360
1361         scan_power_info->power_table_index = power_index;
1362         scan_power_info->tpc.tx_gain =
1363             power_gain_table[band_index][power_index].tx_gain;
1364         scan_power_info->tpc.dsp_atten =
1365             power_gain_table[band_index][power_index].dsp_atten;
1366 }
1367
1368 /**
1369  * iwl3945_send_tx_power - fill in Tx Power command with gain settings
1370  *
1371  * Configures power settings for all rates for the current channel,
1372  * using values from channel info struct, and send to NIC
1373  */
1374 static int iwl3945_send_tx_power(struct iwl_priv *priv)
1375 {
1376         int rate_idx, i;
1377         const struct iwl_channel_info *ch_info = NULL;
1378         struct iwl3945_txpowertable_cmd txpower = {
1379                 .channel = priv->contexts[IWL_RXON_CTX_BSS].active.channel,
1380         };
1381         u16 chan;
1382
1383         if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
1384                       "TX Power requested while scanning!\n"))
1385                 return -EAGAIN;
1386
1387         chan = le16_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.channel);
1388
1389         txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
1390         ch_info = iwl_legacy_get_channel_info(priv, priv->band, chan);
1391         if (!ch_info) {
1392                 IWL_ERR(priv,
1393                         "Failed to get channel info for channel %d [%d]\n",
1394                         chan, priv->band);
1395                 return -EINVAL;
1396         }
1397
1398         if (!iwl_legacy_is_channel_valid(ch_info)) {
1399                 IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on "
1400                                 "non-Tx channel.\n");
1401                 return 0;
1402         }
1403
1404         /* fill cmd with power settings for all rates for current channel */
1405         /* Fill OFDM rate */
1406         for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
1407              rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) {
1408
1409                 txpower.power[i].tpc = ch_info->power_info[i].tpc;
1410                 txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
1411
1412                 IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
1413                                 le16_to_cpu(txpower.channel),
1414                                 txpower.band,
1415                                 txpower.power[i].tpc.tx_gain,
1416                                 txpower.power[i].tpc.dsp_atten,
1417                                 txpower.power[i].rate);
1418         }
1419         /* Fill CCK rates */
1420         for (rate_idx = IWL_FIRST_CCK_RATE;
1421              rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
1422                 txpower.power[i].tpc = ch_info->power_info[i].tpc;
1423                 txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
1424
1425                 IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
1426                                 le16_to_cpu(txpower.channel),
1427                                 txpower.band,
1428                                 txpower.power[i].tpc.tx_gain,
1429                                 txpower.power[i].tpc.dsp_atten,
1430                                 txpower.power[i].rate);
1431         }
1432
1433         return iwl_legacy_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
1434                                 sizeof(struct iwl3945_txpowertable_cmd),
1435                                 &txpower);
1436
1437 }
1438
1439 /**
1440  * iwl3945_hw_reg_set_new_power - Configures power tables at new levels
1441  * @ch_info: Channel to update.  Uses power_info.requested_power.
1442  *
1443  * Replace requested_power and base_power_index ch_info fields for
1444  * one channel.
1445  *
1446  * Called if user or spectrum management changes power preferences.
1447  * Takes into account h/w and modulation limitations (clip power).
1448  *
1449  * This does *not* send anything to NIC, just sets up ch_info for one channel.
1450  *
1451  * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
1452  *       properly fill out the scan powers, and actual h/w gain settings,
1453  *       and send changes to NIC
1454  */
1455 static int iwl3945_hw_reg_set_new_power(struct iwl_priv *priv,
1456                              struct iwl_channel_info *ch_info)
1457 {
1458         struct iwl3945_channel_power_info *power_info;
1459         int power_changed = 0;
1460         int i;
1461         const s8 *clip_pwrs;
1462         int power;
1463
1464         /* Get this chnlgrp's rate-to-max/clip-powers table */
1465         clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
1466
1467         /* Get this channel's rate-to-current-power settings table */
1468         power_info = ch_info->power_info;
1469
1470         /* update OFDM Txpower settings */
1471         for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
1472              i++, ++power_info) {
1473                 int delta_idx;
1474
1475                 /* limit new power to be no more than h/w capability */
1476                 power = min(ch_info->curr_txpow, clip_pwrs[i]);
1477                 if (power == power_info->requested_power)
1478                         continue;
1479
1480                 /* find difference between old and new requested powers,
1481                  *    update base (non-temp-compensated) power index */
1482                 delta_idx = (power - power_info->requested_power) * 2;
1483                 power_info->base_power_index -= delta_idx;
1484
1485                 /* save new requested power value */
1486                 power_info->requested_power = power;
1487
1488                 power_changed = 1;
1489         }
1490
1491         /* update CCK Txpower settings, based on OFDM 12M setting ...
1492          *    ... all CCK power settings for a given channel are the *same*. */
1493         if (power_changed) {
1494                 power =
1495                     ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
1496                     requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
1497
1498                 /* do all CCK rates' iwl3945_channel_power_info structures */
1499                 for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
1500                         power_info->requested_power = power;
1501                         power_info->base_power_index =
1502                             ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
1503                             base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
1504                         ++power_info;
1505                 }
1506         }
1507
1508         return 0;
1509 }
1510
1511 /**
1512  * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
1513  *
1514  * NOTE: Returned power limit may be less (but not more) than requested,
1515  *       based strictly on regulatory (eeprom and spectrum mgt) limitations
1516  *       (no consideration for h/w clipping limitations).
1517  */
1518 static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info)
1519 {
1520         s8 max_power;
1521
1522 #if 0
1523         /* if we're using TGd limits, use lower of TGd or EEPROM */
1524         if (ch_info->tgd_data.max_power != 0)
1525                 max_power = min(ch_info->tgd_data.max_power,
1526                                 ch_info->eeprom.max_power_avg);
1527
1528         /* else just use EEPROM limits */
1529         else
1530 #endif
1531                 max_power = ch_info->eeprom.max_power_avg;
1532
1533         return min(max_power, ch_info->max_power_avg);
1534 }
1535
1536 /**
1537  * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature
1538  *
1539  * Compensate txpower settings of *all* channels for temperature.
1540  * This only accounts for the difference between current temperature
1541  *   and the factory calibration temperatures, and bases the new settings
1542  *   on the channel's base_power_index.
1543  *
1544  * If RxOn is "associated", this sends the new Txpower to NIC!
1545  */
1546 static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
1547 {
1548         struct iwl_channel_info *ch_info = NULL;
1549         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1550         int delta_index;
1551         const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
1552         u8 a_band;
1553         u8 rate_index;
1554         u8 scan_tbl_index;
1555         u8 i;
1556         int ref_temp;
1557         int temperature = priv->temperature;
1558
1559         if (priv->disable_tx_power_cal ||
1560             test_bit(STATUS_SCANNING, &priv->status)) {
1561                 /* do not perform tx power calibration */
1562                 return 0;
1563         }
1564         /* set up new Tx power info for each and every channel, 2.4 and 5.x */
1565         for (i = 0; i < priv->channel_count; i++) {
1566                 ch_info = &priv->channel_info[i];
1567                 a_band = iwl_legacy_is_channel_a_band(ch_info);
1568
1569                 /* Get this chnlgrp's factory calibration temperature */
1570                 ref_temp = (s16)eeprom->groups[ch_info->group_index].
1571                     temperature;
1572
1573                 /* get power index adjustment based on current and factory
1574                  * temps */
1575                 delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
1576                                                               ref_temp);
1577
1578                 /* set tx power value for all rates, OFDM and CCK */
1579                 for (rate_index = 0; rate_index < IWL_RATE_COUNT_3945;
1580                      rate_index++) {
1581                         int power_idx =
1582                             ch_info->power_info[rate_index].base_power_index;
1583
1584                         /* temperature compensate */
1585                         power_idx += delta_index;
1586
1587                         /* stay within table range */
1588                         power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
1589                         ch_info->power_info[rate_index].
1590                             power_table_index = (u8) power_idx;
1591                         ch_info->power_info[rate_index].tpc =
1592                             power_gain_table[a_band][power_idx];
1593                 }
1594
1595                 /* Get this chnlgrp's rate-to-max/clip-powers table */
1596                 clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
1597
1598                 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
1599                 for (scan_tbl_index = 0;
1600                      scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
1601                         s32 actual_index = (scan_tbl_index == 0) ?
1602                             IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
1603                         iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
1604                                            actual_index, clip_pwrs,
1605                                            ch_info, a_band);
1606                 }
1607         }
1608
1609         /* send Txpower command for current channel to ucode */
1610         return priv->cfg->ops->lib->send_tx_power(priv);
1611 }
1612
1613 int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
1614 {
1615         struct iwl_channel_info *ch_info;
1616         s8 max_power;
1617         u8 a_band;
1618         u8 i;
1619
1620         if (priv->tx_power_user_lmt == power) {
1621                 IWL_DEBUG_POWER(priv, "Requested Tx power same as current "
1622                                 "limit: %ddBm.\n", power);
1623                 return 0;
1624         }
1625
1626         IWL_DEBUG_POWER(priv, "Setting upper limit clamp to %ddBm.\n", power);
1627         priv->tx_power_user_lmt = power;
1628
1629         /* set up new Tx powers for each and every channel, 2.4 and 5.x */
1630
1631         for (i = 0; i < priv->channel_count; i++) {
1632                 ch_info = &priv->channel_info[i];
1633                 a_band = iwl_legacy_is_channel_a_band(ch_info);
1634
1635                 /* find minimum power of all user and regulatory constraints
1636                  *    (does not consider h/w clipping limitations) */
1637                 max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info);
1638                 max_power = min(power, max_power);
1639                 if (max_power != ch_info->curr_txpow) {
1640                         ch_info->curr_txpow = max_power;
1641
1642                         /* this considers the h/w clipping limitations */
1643                         iwl3945_hw_reg_set_new_power(priv, ch_info);
1644                 }
1645         }
1646
1647         /* update txpower settings for all channels,
1648          *   send to NIC if associated. */
1649         iwl3945_is_temp_calib_needed(priv);
1650         iwl3945_hw_reg_comp_txpower_temp(priv);
1651
1652         return 0;
1653 }
1654
1655 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv,
1656                                    struct iwl_rxon_context *ctx)
1657 {
1658         int rc = 0;
1659         struct iwl_rx_packet *pkt;
1660         struct iwl3945_rxon_assoc_cmd rxon_assoc;
1661         struct iwl_host_cmd cmd = {
1662                 .id = REPLY_RXON_ASSOC,
1663                 .len = sizeof(rxon_assoc),
1664                 .flags = CMD_WANT_SKB,
1665                 .data = &rxon_assoc,
1666         };
1667         const struct iwl_legacy_rxon_cmd *rxon1 = &ctx->staging;
1668         const struct iwl_legacy_rxon_cmd *rxon2 = &ctx->active;
1669
1670         if ((rxon1->flags == rxon2->flags) &&
1671             (rxon1->filter_flags == rxon2->filter_flags) &&
1672             (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1673             (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1674                 IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC.  Not resending.\n");
1675                 return 0;
1676         }
1677
1678         rxon_assoc.flags = ctx->staging.flags;
1679         rxon_assoc.filter_flags = ctx->staging.filter_flags;
1680         rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
1681         rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
1682         rxon_assoc.reserved = 0;
1683
1684         rc = iwl_legacy_send_cmd_sync(priv, &cmd);
1685         if (rc)
1686                 return rc;
1687
1688         pkt = (struct iwl_rx_packet *)cmd.reply_page;
1689         if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
1690                 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
1691                 rc = -EIO;
1692         }
1693
1694         iwl_legacy_free_pages(priv, cmd.reply_page);
1695
1696         return rc;
1697 }
1698
1699 /**
1700  * iwl3945_commit_rxon - commit staging_rxon to hardware
1701  *
1702  * The RXON command in staging_rxon is committed to the hardware and
1703  * the active_rxon structure is updated with the new data.  This
1704  * function correctly transitions out of the RXON_ASSOC_MSK state if
1705  * a HW tune is required based on the RXON structure changes.
1706  */
1707 int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1708 {
1709         /* cast away the const for active_rxon in this function */
1710         struct iwl3945_rxon_cmd *active_rxon = (void *)&ctx->active;
1711         struct iwl3945_rxon_cmd *staging_rxon = (void *)&ctx->staging;
1712         int rc = 0;
1713         bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK);
1714
1715         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1716                 return -EINVAL;
1717
1718         if (!iwl_legacy_is_alive(priv))
1719                 return -1;
1720
1721         /* always get timestamp with Rx frame */
1722         staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
1723
1724         /* select antenna */
1725         staging_rxon->flags &=
1726             ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
1727         staging_rxon->flags |= iwl3945_get_antenna_flags(priv);
1728
1729         rc = iwl_legacy_check_rxon_cmd(priv, ctx);
1730         if (rc) {
1731                 IWL_ERR(priv, "Invalid RXON configuration.  Not committing.\n");
1732                 return -EINVAL;
1733         }
1734
1735         /* If we don't need to send a full RXON, we can use
1736          * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1737          * and other flags for the current radio configuration. */
1738         if (!iwl_legacy_full_rxon_required(priv,
1739                         &priv->contexts[IWL_RXON_CTX_BSS])) {
1740                 rc = iwl_legacy_send_rxon_assoc(priv,
1741                                          &priv->contexts[IWL_RXON_CTX_BSS]);
1742                 if (rc) {
1743                         IWL_ERR(priv, "Error setting RXON_ASSOC "
1744                                   "configuration (%d).\n", rc);
1745                         return rc;
1746                 }
1747
1748                 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1749
1750                 return 0;
1751         }
1752
1753         /* If we are currently associated and the new config requires
1754          * an RXON_ASSOC and the new config wants the associated mask enabled,
1755          * we must clear the associated from the active configuration
1756          * before we apply the new config */
1757         if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS) && new_assoc) {
1758                 IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
1759                 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1760
1761                 /*
1762                  * reserved4 and 5 could have been filled by the iwlcore code.
1763                  * Let's clear them before pushing to the 3945.
1764                  */
1765                 active_rxon->reserved4 = 0;
1766                 active_rxon->reserved5 = 0;
1767                 rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON,
1768                                       sizeof(struct iwl3945_rxon_cmd),
1769                                       &priv->contexts[IWL_RXON_CTX_BSS].active);
1770
1771                 /* If the mask clearing failed then we set
1772                  * active_rxon back to what it was previously */
1773                 if (rc) {
1774                         active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
1775                         IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
1776                                   "configuration (%d).\n", rc);
1777                         return rc;
1778                 }
1779                 iwl_legacy_clear_ucode_stations(priv,
1780                                          &priv->contexts[IWL_RXON_CTX_BSS]);
1781                 iwl_legacy_restore_stations(priv,
1782                                          &priv->contexts[IWL_RXON_CTX_BSS]);
1783         }
1784
1785         IWL_DEBUG_INFO(priv, "Sending RXON\n"
1786                        "* with%s RXON_FILTER_ASSOC_MSK\n"
1787                        "* channel = %d\n"
1788                        "* bssid = %pM\n",
1789                        (new_assoc ? "" : "out"),
1790                        le16_to_cpu(staging_rxon->channel),
1791                        staging_rxon->bssid_addr);
1792
1793         /*
1794          * reserved4 and 5 could have been filled by the iwlcore code.
1795          * Let's clear them before pushing to the 3945.
1796          */
1797         staging_rxon->reserved4 = 0;
1798         staging_rxon->reserved5 = 0;
1799
1800         iwl_legacy_set_rxon_hwcrypto(priv, ctx, !iwl3945_mod_params.sw_crypto);
1801
1802         /* Apply the new configuration */
1803         rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON,
1804                               sizeof(struct iwl3945_rxon_cmd),
1805                               staging_rxon);
1806         if (rc) {
1807                 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
1808                 return rc;
1809         }
1810
1811         memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1812
1813         if (!new_assoc) {
1814                 iwl_legacy_clear_ucode_stations(priv,
1815                                          &priv->contexts[IWL_RXON_CTX_BSS]);
1816                 iwl_legacy_restore_stations(priv,
1817                                         &priv->contexts[IWL_RXON_CTX_BSS]);
1818         }
1819
1820         /* If we issue a new RXON command which required a tune then we must
1821          * send a new TXPOWER command or we won't be able to Tx any frames */
1822         rc = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true);
1823         if (rc) {
1824                 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
1825                 return rc;
1826         }
1827
1828         /* Init the hardware's rate fallback order based on the band */
1829         rc = iwl3945_init_hw_rate_table(priv);
1830         if (rc) {
1831                 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
1832                 return -EIO;
1833         }
1834
1835         return 0;
1836 }
1837
1838 /**
1839  * iwl3945_reg_txpower_periodic -  called when time to check our temperature.
1840  *
1841  * -- reset periodic timer
1842  * -- see if temp has changed enough to warrant re-calibration ... if so:
1843  *     -- correct coeffs for temp (can reset temp timer)
1844  *     -- save this temp as "last",
1845  *     -- send new set of gain settings to NIC
1846  * NOTE:  This should continue working, even when we're not associated,
1847  *   so we can keep our internal table of scan powers current. */
1848 void iwl3945_reg_txpower_periodic(struct iwl_priv *priv)
1849 {
1850         /* This will kick in the "brute force"
1851          * iwl3945_hw_reg_comp_txpower_temp() below */
1852         if (!iwl3945_is_temp_calib_needed(priv))
1853                 goto reschedule;
1854
1855         /* Set up a new set of temp-adjusted TxPowers, send to NIC.
1856          * This is based *only* on current temperature,
1857          * ignoring any previous power measurements */
1858         iwl3945_hw_reg_comp_txpower_temp(priv);
1859
1860  reschedule:
1861         queue_delayed_work(priv->workqueue,
1862                            &priv->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ);
1863 }
1864
1865 static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work)
1866 {
1867         struct iwl_priv *priv = container_of(work, struct iwl_priv,
1868                                              _3945.thermal_periodic.work);
1869
1870         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1871                 return;
1872
1873         mutex_lock(&priv->mutex);
1874         iwl3945_reg_txpower_periodic(priv);
1875         mutex_unlock(&priv->mutex);
1876 }
1877
1878 /**
1879  * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
1880  *                                 for the channel.
1881  *
1882  * This function is used when initializing channel-info structs.
1883  *
1884  * NOTE: These channel groups do *NOT* match the bands above!
1885  *       These channel groups are based on factory-tested channels;
1886  *       on A-band, EEPROM's "group frequency" entries represent the top
1887  *       channel in each group 1-4.  Group 5 All B/G channels are in group 0.
1888  */
1889 static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv,
1890                                        const struct iwl_channel_info *ch_info)
1891 {
1892         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1893         struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
1894         u8 group;
1895         u16 group_index = 0;    /* based on factory calib frequencies */
1896         u8 grp_channel;
1897
1898         /* Find the group index for the channel ... don't use index 1(?) */
1899         if (iwl_legacy_is_channel_a_band(ch_info)) {
1900                 for (group = 1; group < 5; group++) {
1901                         grp_channel = ch_grp[group].group_channel;
1902                         if (ch_info->channel <= grp_channel) {
1903                                 group_index = group;
1904                                 break;
1905                         }
1906                 }
1907                 /* group 4 has a few channels *above* its factory cal freq */
1908                 if (group == 5)
1909                         group_index = 4;
1910         } else
1911                 group_index = 0;        /* 2.4 GHz, group 0 */
1912
1913         IWL_DEBUG_POWER(priv, "Chnl %d mapped to grp %d\n", ch_info->channel,
1914                         group_index);
1915         return group_index;
1916 }
1917
1918 /**
1919  * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
1920  *
1921  * Interpolate to get nominal (i.e. at factory calibration temperature) index
1922  *   into radio/DSP gain settings table for requested power.
1923  */
1924 static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv,
1925                                        s8 requested_power,
1926                                        s32 setting_index, s32 *new_index)
1927 {
1928         const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL;
1929         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1930         s32 index0, index1;
1931         s32 power = 2 * requested_power;
1932         s32 i;
1933         const struct iwl3945_eeprom_txpower_sample *samples;
1934         s32 gains0, gains1;
1935         s32 res;
1936         s32 denominator;
1937
1938         chnl_grp = &eeprom->groups[setting_index];
1939         samples = chnl_grp->samples;
1940         for (i = 0; i < 5; i++) {
1941                 if (power == samples[i].power) {
1942                         *new_index = samples[i].gain_index;
1943                         return 0;
1944                 }
1945         }
1946
1947         if (power > samples[1].power) {
1948                 index0 = 0;
1949                 index1 = 1;
1950         } else if (power > samples[2].power) {
1951                 index0 = 1;
1952                 index1 = 2;
1953         } else if (power > samples[3].power) {
1954                 index0 = 2;
1955                 index1 = 3;
1956         } else {
1957                 index0 = 3;
1958                 index1 = 4;
1959         }
1960
1961         denominator = (s32) samples[index1].power - (s32) samples[index0].power;
1962         if (denominator == 0)
1963                 return -EINVAL;
1964         gains0 = (s32) samples[index0].gain_index * (1 << 19);
1965         gains1 = (s32) samples[index1].gain_index * (1 << 19);
1966         res = gains0 + (gains1 - gains0) *
1967             ((s32) power - (s32) samples[index0].power) / denominator +
1968             (1 << 18);
1969         *new_index = res >> 19;
1970         return 0;
1971 }
1972
1973 static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
1974 {
1975         u32 i;
1976         s32 rate_index;
1977         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
1978         const struct iwl3945_eeprom_txpower_group *group;
1979
1980         IWL_DEBUG_POWER(priv, "Initializing factory calib info from EEPROM\n");
1981
1982         for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) {
1983                 s8 *clip_pwrs;  /* table of power levels for each rate */
1984                 s8 satur_pwr;   /* saturation power for each chnl group */
1985                 group = &eeprom->groups[i];
1986
1987                 /* sanity check on factory saturation power value */
1988                 if (group->saturation_power < 40) {
1989                         IWL_WARN(priv, "Error: saturation power is %d, "
1990                                     "less than minimum expected 40\n",
1991                                     group->saturation_power);
1992                         return;
1993                 }
1994
1995                 /*
1996                  * Derive requested power levels for each rate, based on
1997                  *   hardware capabilities (saturation power for band).
1998                  * Basic value is 3dB down from saturation, with further
1999                  *   power reductions for highest 3 data rates.  These
2000                  *   backoffs provide headroom for high rate modulation
2001                  *   power peaks, without too much distortion (clipping).
2002                  */
2003                 /* we'll fill in this array with h/w max power levels */
2004                 clip_pwrs = (s8 *) priv->_3945.clip_groups[i].clip_powers;
2005
2006                 /* divide factory saturation power by 2 to find -3dB level */
2007                 satur_pwr = (s8) (group->saturation_power >> 1);
2008
2009                 /* fill in channel group's nominal powers for each rate */
2010                 for (rate_index = 0;
2011                      rate_index < IWL_RATE_COUNT_3945; rate_index++, clip_pwrs++) {
2012                         switch (rate_index) {
2013                         case IWL_RATE_36M_INDEX_TABLE:
2014                                 if (i == 0)     /* B/G */
2015                                         *clip_pwrs = satur_pwr;
2016                                 else    /* A */
2017                                         *clip_pwrs = satur_pwr - 5;
2018                                 break;
2019                         case IWL_RATE_48M_INDEX_TABLE:
2020                                 if (i == 0)
2021                                         *clip_pwrs = satur_pwr - 7;
2022                                 else
2023                                         *clip_pwrs = satur_pwr - 10;
2024                                 break;
2025                         case IWL_RATE_54M_INDEX_TABLE:
2026                                 if (i == 0)
2027                                         *clip_pwrs = satur_pwr - 9;
2028                                 else
2029                                         *clip_pwrs = satur_pwr - 12;
2030                                 break;
2031                         default:
2032                                 *clip_pwrs = satur_pwr;
2033                                 break;
2034                         }
2035                 }
2036         }
2037 }
2038
2039 /**
2040  * iwl3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
2041  *
2042  * Second pass (during init) to set up priv->channel_info
2043  *
2044  * Set up Tx-power settings in our channel info database for each VALID
2045  * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
2046  * and current temperature.
2047  *
2048  * Since this is based on current temperature (at init time), these values may
2049  * not be valid for very long, but it gives us a starting/default point,
2050  * and allows us to active (i.e. using Tx) scan.
2051  *
2052  * This does *not* write values to NIC, just sets up our internal table.
2053  */
2054 int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
2055 {
2056         struct iwl_channel_info *ch_info = NULL;
2057         struct iwl3945_channel_power_info *pwr_info;
2058         struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
2059         int delta_index;
2060         u8 rate_index;
2061         u8 scan_tbl_index;
2062         const s8 *clip_pwrs;    /* array of power levels for each rate */
2063         u8 gain, dsp_atten;
2064         s8 power;
2065         u8 pwr_index, base_pwr_index, a_band;
2066         u8 i;
2067         int temperature;
2068
2069         /* save temperature reference,
2070          *   so we can determine next time to calibrate */
2071         temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
2072         priv->last_temperature = temperature;
2073
2074         iwl3945_hw_reg_init_channel_groups(priv);
2075
2076         /* initialize Tx power info for each and every channel, 2.4 and 5.x */
2077         for (i = 0, ch_info = priv->channel_info; i < priv->channel_count;
2078              i++, ch_info++) {
2079                 a_band = iwl_legacy_is_channel_a_band(ch_info);
2080                 if (!iwl_legacy_is_channel_valid(ch_info))
2081                         continue;
2082
2083                 /* find this channel's channel group (*not* "band") index */
2084                 ch_info->group_index =
2085                         iwl3945_hw_reg_get_ch_grp_index(priv, ch_info);
2086
2087                 /* Get this chnlgrp's rate->max/clip-powers table */
2088                 clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
2089
2090                 /* calculate power index *adjustment* value according to
2091                  *  diff between current temperature and factory temperature */
2092                 delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
2093                                 eeprom->groups[ch_info->group_index].
2094                                 temperature);
2095
2096                 IWL_DEBUG_POWER(priv, "Delta index for channel %d: %d [%d]\n",
2097                                 ch_info->channel, delta_index, temperature +
2098                                 IWL_TEMP_CONVERT);
2099
2100                 /* set tx power value for all OFDM rates */
2101                 for (rate_index = 0; rate_index < IWL_OFDM_RATES;
2102                      rate_index++) {
2103                         s32 uninitialized_var(power_idx);
2104                         int rc;
2105
2106                         /* use channel group's clip-power table,
2107                          *   but don't exceed channel's max power */
2108                         s8 pwr = min(ch_info->max_power_avg,
2109                                      clip_pwrs[rate_index]);
2110
2111                         pwr_info = &ch_info->power_info[rate_index];
2112
2113                         /* get base (i.e. at factory-measured temperature)
2114                          *    power table index for this rate's power */
2115                         rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr,
2116                                                          ch_info->group_index,
2117                                                          &power_idx);
2118                         if (rc) {
2119                                 IWL_ERR(priv, "Invalid power index\n");
2120                                 return rc;
2121                         }
2122                         pwr_info->base_power_index = (u8) power_idx;
2123
2124                         /* temperature compensate */
2125                         power_idx += delta_index;
2126
2127                         /* stay within range of gain table */
2128                         power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
2129
2130                         /* fill 1 OFDM rate's iwl3945_channel_power_info struct */
2131                         pwr_info->requested_power = pwr;
2132                         pwr_info->power_table_index = (u8) power_idx;
2133                         pwr_info->tpc.tx_gain =
2134                             power_gain_table[a_band][power_idx].tx_gain;
2135                         pwr_info->tpc.dsp_atten =
2136                             power_gain_table[a_band][power_idx].dsp_atten;
2137                 }
2138
2139                 /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
2140                 pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
2141                 power = pwr_info->requested_power +
2142                         IWL_CCK_FROM_OFDM_POWER_DIFF;
2143                 pwr_index = pwr_info->power_table_index +
2144                         IWL_CCK_FROM_OFDM_INDEX_DIFF;
2145                 base_pwr_index = pwr_info->base_power_index +
2146                         IWL_CCK_FROM_OFDM_INDEX_DIFF;
2147
2148                 /* stay within table range */
2149                 pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index);
2150                 gain = power_gain_table[a_band][pwr_index].tx_gain;
2151                 dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
2152
2153                 /* fill each CCK rate's iwl3945_channel_power_info structure
2154                  * NOTE:  All CCK-rate Txpwrs are the same for a given chnl!
2155                  * NOTE:  CCK rates start at end of OFDM rates! */
2156                 for (rate_index = 0;
2157                      rate_index < IWL_CCK_RATES; rate_index++) {
2158                         pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
2159                         pwr_info->requested_power = power;
2160                         pwr_info->power_table_index = pwr_index;
2161                         pwr_info->base_power_index = base_pwr_index;
2162                         pwr_info->tpc.tx_gain = gain;
2163                         pwr_info->tpc.dsp_atten = dsp_atten;
2164                 }
2165
2166                 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
2167                 for (scan_tbl_index = 0;
2168                      scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
2169                         s32 actual_index = (scan_tbl_index == 0) ?
2170                                 IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
2171                         iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
2172                                 actual_index, clip_pwrs, ch_info, a_band);
2173                 }
2174         }
2175
2176         return 0;
2177 }
2178
2179 int iwl3945_hw_rxq_stop(struct iwl_priv *priv)
2180 {
2181         int rc;
2182
2183         iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0), 0);
2184         rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS,
2185                         FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
2186         if (rc < 0)
2187                 IWL_ERR(priv, "Can't stop Rx DMA.\n");
2188
2189         return 0;
2190 }
2191
2192 int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
2193 {
2194         int txq_id = txq->q.id;
2195
2196         struct iwl3945_shared *shared_data = priv->_3945.shared_virt;
2197
2198         shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
2199
2200         iwl_legacy_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0);
2201         iwl_legacy_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0);
2202
2203         iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id),
2204                 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
2205                 FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
2206                 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
2207                 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
2208                 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
2209
2210         /* fake read to flush all prev. writes */
2211         iwl_read32(priv, FH39_TSSR_CBB_BASE);
2212
2213         return 0;
2214 }
2215
2216 /*
2217  * HCMD utils
2218  */
2219 static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len)
2220 {
2221         switch (cmd_id) {
2222         case REPLY_RXON:
2223                 return sizeof(struct iwl3945_rxon_cmd);
2224         case POWER_TABLE_CMD:
2225                 return sizeof(struct iwl3945_powertable_cmd);
2226         default:
2227                 return len;
2228         }
2229 }
2230
2231
2232 static u16 iwl3945_build_addsta_hcmd(const struct iwl_legacy_addsta_cmd *cmd,
2233                                                                 u8 *data)
2234 {
2235         struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data;
2236         addsta->mode = cmd->mode;
2237         memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
2238         memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
2239         addsta->station_flags = cmd->station_flags;
2240         addsta->station_flags_msk = cmd->station_flags_msk;
2241         addsta->tid_disable_tx = cpu_to_le16(0);
2242         addsta->rate_n_flags = cmd->rate_n_flags;
2243         addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
2244         addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
2245         addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
2246
2247         return (u16)sizeof(struct iwl3945_addsta_cmd);
2248 }
2249
2250 static int iwl3945_add_bssid_station(struct iwl_priv *priv,
2251                                      const u8 *addr, u8 *sta_id_r)
2252 {
2253         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2254         int ret;
2255         u8 sta_id;
2256         unsigned long flags;
2257
2258         if (sta_id_r)
2259                 *sta_id_r = IWL_INVALID_STATION;
2260
2261         ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
2262         if (ret) {
2263                 IWL_ERR(priv, "Unable to add station %pM\n", addr);
2264                 return ret;
2265         }
2266
2267         if (sta_id_r)
2268                 *sta_id_r = sta_id;
2269
2270         spin_lock_irqsave(&priv->sta_lock, flags);
2271         priv->stations[sta_id].used |= IWL_STA_LOCAL;
2272         spin_unlock_irqrestore(&priv->sta_lock, flags);
2273
2274         return 0;
2275 }
2276 static int iwl3945_manage_ibss_station(struct iwl_priv *priv,
2277                                        struct ieee80211_vif *vif, bool add)
2278 {
2279         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2280         int ret;
2281
2282         if (add) {
2283                 ret = iwl3945_add_bssid_station(priv, vif->bss_conf.bssid,
2284                                                 &vif_priv->ibss_bssid_sta_id);
2285                 if (ret)
2286                         return ret;
2287
2288                 iwl3945_sync_sta(priv, vif_priv->ibss_bssid_sta_id,
2289                                  (priv->band == IEEE80211_BAND_5GHZ) ?
2290                                  IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP);
2291                 iwl3945_rate_scale_init(priv->hw, vif_priv->ibss_bssid_sta_id);
2292
2293                 return 0;
2294         }
2295
2296         return iwl_legacy_remove_station(priv, vif_priv->ibss_bssid_sta_id,
2297                                   vif->bss_conf.bssid);
2298 }
2299
2300 /**
2301  * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table
2302  */
2303 int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
2304 {
2305         int rc, i, index, prev_index;
2306         struct iwl3945_rate_scaling_cmd rate_cmd = {
2307                 .reserved = {0, 0, 0},
2308         };
2309         struct iwl3945_rate_scaling_info *table = rate_cmd.table;
2310
2311         for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) {
2312                 index = iwl3945_rates[i].table_rs_index;
2313
2314                 table[index].rate_n_flags =
2315                         iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0);
2316                 table[index].try_cnt = priv->retry_rate;
2317                 prev_index = iwl3945_get_prev_ieee_rate(i);
2318                 table[index].next_rate_index =
2319                                 iwl3945_rates[prev_index].table_rs_index;
2320         }
2321
2322         switch (priv->band) {
2323         case IEEE80211_BAND_5GHZ:
2324                 IWL_DEBUG_RATE(priv, "Select A mode rate scale\n");
2325                 /* If one of the following CCK rates is used,
2326                  * have it fall back to the 6M OFDM rate */
2327                 for (i = IWL_RATE_1M_INDEX_TABLE;
2328                         i <= IWL_RATE_11M_INDEX_TABLE; i++)
2329                         table[i].next_rate_index =
2330                           iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
2331
2332                 /* Don't fall back to CCK rates */
2333                 table[IWL_RATE_12M_INDEX_TABLE].next_rate_index =
2334                                                 IWL_RATE_9M_INDEX_TABLE;
2335
2336                 /* Don't drop out of OFDM rates */
2337                 table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
2338                     iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
2339                 break;
2340
2341         case IEEE80211_BAND_2GHZ:
2342                 IWL_DEBUG_RATE(priv, "Select B/G mode rate scale\n");
2343                 /* If an OFDM rate is used, have it fall back to the
2344                  * 1M CCK rates */
2345
2346                 if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
2347                     iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
2348
2349                         index = IWL_FIRST_CCK_RATE;
2350                         for (i = IWL_RATE_6M_INDEX_TABLE;
2351                              i <= IWL_RATE_54M_INDEX_TABLE; i++)
2352                                 table[i].next_rate_index =
2353                                         iwl3945_rates[index].table_rs_index;
2354
2355                         index = IWL_RATE_11M_INDEX_TABLE;
2356                         /* CCK shouldn't fall back to OFDM... */
2357                         table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
2358                 }
2359                 break;
2360
2361         default:
2362                 WARN_ON(1);
2363                 break;
2364         }
2365
2366         /* Update the rate scaling for control frame Tx */
2367         rate_cmd.table_id = 0;
2368         rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
2369                               &rate_cmd);
2370         if (rc)
2371                 return rc;
2372
2373         /* Update the rate scaling for data frame Tx */
2374         rate_cmd.table_id = 1;
2375         return iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
2376                                 &rate_cmd);
2377 }
2378
2379 /* Called when initializing driver */
2380 int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
2381 {
2382         memset((void *)&priv->hw_params, 0,
2383                sizeof(struct iwl_hw_params));
2384
2385         priv->_3945.shared_virt =
2386                 dma_alloc_coherent(&priv->pci_dev->dev,
2387                                    sizeof(struct iwl3945_shared),
2388                                    &priv->_3945.shared_phys, GFP_KERNEL);
2389         if (!priv->_3945.shared_virt) {
2390                 IWL_ERR(priv, "failed to allocate pci memory\n");
2391                 return -ENOMEM;
2392         }
2393
2394         /* Assign number of Usable TX queues */
2395         priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
2396
2397         priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd);
2398         priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_3K);
2399         priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
2400         priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
2401         priv->hw_params.max_stations = IWL3945_STATION_COUNT;
2402         priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWL3945_BROADCAST_ID;
2403
2404         priv->sta_key_max_num = STA_KEY_MAX_NUM;
2405
2406         priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
2407         priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL;
2408         priv->hw_params.beacon_time_tsf_bits = IWL3945_EXT_BEACON_TIME_POS;
2409
2410         return 0;
2411 }
2412
2413 unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
2414                           struct iwl3945_frame *frame, u8 rate)
2415 {
2416         struct iwl3945_tx_beacon_cmd *tx_beacon_cmd;
2417         unsigned int frame_size;
2418
2419         tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u;
2420         memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
2421
2422         tx_beacon_cmd->tx.sta_id =
2423                 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id;
2424         tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2425
2426         frame_size = iwl3945_fill_beacon_frame(priv,
2427                                 tx_beacon_cmd->frame,
2428                                 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
2429
2430         BUG_ON(frame_size > MAX_MPDU_SIZE);
2431         tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
2432
2433         tx_beacon_cmd->tx.rate = rate;
2434         tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
2435                                       TX_CMD_FLG_TSF_MSK);
2436
2437         /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
2438         tx_beacon_cmd->tx.supp_rates[0] =
2439                 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2440
2441         tx_beacon_cmd->tx.supp_rates[1] =
2442                 (IWL_CCK_BASIC_RATES_MASK & 0xF);
2443
2444         return sizeof(struct iwl3945_tx_beacon_cmd) + frame_size;
2445 }
2446
2447 void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv)
2448 {
2449         priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx;
2450         priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx;
2451 }
2452
2453 void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv)
2454 {
2455         INIT_DELAYED_WORK(&priv->_3945.thermal_periodic,
2456                           iwl3945_bg_reg_txpower_periodic);
2457 }
2458
2459 void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv)
2460 {
2461         cancel_delayed_work(&priv->_3945.thermal_periodic);
2462 }
2463
2464 /* check contents of special bootstrap uCode SRAM */
2465 static int iwl3945_verify_bsm(struct iwl_priv *priv)
2466  {
2467         __le32 *image = priv->ucode_boot.v_addr;
2468         u32 len = priv->ucode_boot.len;
2469         u32 reg;
2470         u32 val;
2471
2472         IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
2473
2474         /* verify BSM SRAM contents */
2475         val = iwl_legacy_read_prph(priv, BSM_WR_DWCOUNT_REG);
2476         for (reg = BSM_SRAM_LOWER_BOUND;
2477              reg < BSM_SRAM_LOWER_BOUND + len;
2478              reg += sizeof(u32), image++) {
2479                 val = iwl_legacy_read_prph(priv, reg);
2480                 if (val != le32_to_cpu(*image)) {
2481                         IWL_ERR(priv, "BSM uCode verification failed at "
2482                                   "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
2483                                   BSM_SRAM_LOWER_BOUND,
2484                                   reg - BSM_SRAM_LOWER_BOUND, len,
2485                                   val, le32_to_cpu(*image));
2486                         return -EIO;
2487                 }
2488         }
2489
2490         IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
2491
2492         return 0;
2493 }
2494
2495
2496 /******************************************************************************
2497  *
2498  * EEPROM related functions
2499  *
2500  ******************************************************************************/
2501
2502 /*
2503  * Clear the OWNER_MSK, to establish driver (instead of uCode running on
2504  * embedded controller) as EEPROM reader; each read is a series of pulses
2505  * to/from the EEPROM chip, not a single event, so even reads could conflict
2506  * if they weren't arbitrated by some ownership mechanism.  Here, the driver
2507  * simply claims ownership, which should be safe when this function is called
2508  * (i.e. before loading uCode!).
2509  */
2510 static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
2511 {
2512         _iwl_legacy_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
2513         return 0;
2514 }
2515
2516
2517 static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv)
2518 {
2519         return;
2520 }
2521
2522  /**
2523   * iwl3945_load_bsm - Load bootstrap instructions
2524   *
2525   * BSM operation:
2526   *
2527   * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
2528   * in special SRAM that does not power down during RFKILL.  When powering back
2529   * up after power-saving sleeps (or during initial uCode load), the BSM loads
2530   * the bootstrap program into the on-board processor, and starts it.
2531   *
2532   * The bootstrap program loads (via DMA) instructions and data for a new
2533   * program from host DRAM locations indicated by the host driver in the
2534   * BSM_DRAM_* registers.  Once the new program is loaded, it starts
2535   * automatically.
2536   *
2537   * When initializing the NIC, the host driver points the BSM to the
2538   * "initialize" uCode image.  This uCode sets up some internal data, then
2539   * notifies host via "initialize alive" that it is complete.
2540   *
2541   * The host then replaces the BSM_DRAM_* pointer values to point to the
2542   * normal runtime uCode instructions and a backup uCode data cache buffer
2543   * (filled initially with starting data values for the on-board processor),
2544   * then triggers the "initialize" uCode to load and launch the runtime uCode,
2545   * which begins normal operation.
2546   *
2547   * When doing a power-save shutdown, runtime uCode saves data SRAM into
2548   * the backup data cache in DRAM before SRAM is powered down.
2549   *
2550   * When powering back up, the BSM loads the bootstrap program.  This reloads
2551   * the runtime uCode instructions and the backup data cache into SRAM,
2552   * and re-launches the runtime uCode from where it left off.
2553   */
2554 static int iwl3945_load_bsm(struct iwl_priv *priv)
2555 {
2556         __le32 *image = priv->ucode_boot.v_addr;
2557         u32 len = priv->ucode_boot.len;
2558         dma_addr_t pinst;
2559         dma_addr_t pdata;
2560         u32 inst_len;
2561         u32 data_len;
2562         int rc;
2563         int i;
2564         u32 done;
2565         u32 reg_offset;
2566
2567         IWL_DEBUG_INFO(priv, "Begin load bsm\n");
2568
2569         /* make sure bootstrap program is no larger than BSM's SRAM size */
2570         if (len > IWL39_MAX_BSM_SIZE)
2571                 return -EINVAL;
2572
2573         /* Tell bootstrap uCode where to find the "Initialize" uCode
2574         *   in host DRAM ... host DRAM physical address bits 31:0 for 3945.
2575         * NOTE:  iwl3945_initialize_alive_start() will replace these values,
2576         *        after the "initialize" uCode has run, to point to
2577         *        runtime/protocol instructions and backup data cache. */
2578         pinst = priv->ucode_init.p_addr;
2579         pdata = priv->ucode_init_data.p_addr;
2580         inst_len = priv->ucode_init.len;
2581         data_len = priv->ucode_init_data.len;
2582
2583         iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
2584         iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
2585         iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
2586         iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
2587
2588         /* Fill BSM memory with bootstrap instructions */
2589         for (reg_offset = BSM_SRAM_LOWER_BOUND;
2590              reg_offset < BSM_SRAM_LOWER_BOUND + len;
2591              reg_offset += sizeof(u32), image++)
2592                 _iwl_legacy_write_prph(priv, reg_offset,
2593                                           le32_to_cpu(*image));
2594
2595         rc = iwl3945_verify_bsm(priv);
2596         if (rc)
2597                 return rc;
2598
2599         /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
2600         iwl_legacy_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
2601         iwl_legacy_write_prph(priv, BSM_WR_MEM_DST_REG,
2602                                  IWL39_RTC_INST_LOWER_BOUND);
2603         iwl_legacy_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
2604
2605         /* Load bootstrap code into instruction SRAM now,
2606          *   to prepare to load "initialize" uCode */
2607         iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG,
2608                 BSM_WR_CTRL_REG_BIT_START);
2609
2610         /* Wait for load of bootstrap uCode to finish */
2611         for (i = 0; i < 100; i++) {
2612                 done = iwl_legacy_read_prph(priv, BSM_WR_CTRL_REG);
2613                 if (!(done & BSM_WR_CTRL_REG_BIT_START))
2614                         break;
2615                 udelay(10);
2616         }
2617         if (i < 100)
2618                 IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
2619         else {
2620                 IWL_ERR(priv, "BSM write did not complete!\n");
2621                 return -EIO;
2622         }
2623
2624         /* Enable future boot loads whenever power management unit triggers it
2625          *   (e.g. when powering back up after power-save shutdown) */
2626         iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG,
2627                 BSM_WR_CTRL_REG_BIT_START_EN);
2628
2629         return 0;
2630 }
2631
2632 static struct iwl_hcmd_ops iwl3945_hcmd = {
2633         .rxon_assoc = iwl3945_send_rxon_assoc,
2634         .commit_rxon = iwl3945_commit_rxon,
2635 };
2636
2637 static struct iwl_lib_ops iwl3945_lib = {
2638         .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd,
2639         .txq_free_tfd = iwl3945_hw_txq_free_tfd,
2640         .txq_init = iwl3945_hw_tx_queue_init,
2641         .load_ucode = iwl3945_load_bsm,
2642         .dump_nic_error_log = iwl3945_dump_nic_error_log,
2643         .apm_ops = {
2644                 .init = iwl3945_apm_init,
2645                 .config = iwl3945_nic_config,
2646         },
2647         .eeprom_ops = {
2648                 .regulatory_bands = {
2649                         EEPROM_REGULATORY_BAND_1_CHANNELS,
2650                         EEPROM_REGULATORY_BAND_2_CHANNELS,
2651                         EEPROM_REGULATORY_BAND_3_CHANNELS,
2652                         EEPROM_REGULATORY_BAND_4_CHANNELS,
2653                         EEPROM_REGULATORY_BAND_5_CHANNELS,
2654                         EEPROM_REGULATORY_BAND_NO_HT40,
2655                         EEPROM_REGULATORY_BAND_NO_HT40,
2656                 },
2657                 .acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
2658                 .release_semaphore = iwl3945_eeprom_release_semaphore,
2659         },
2660         .send_tx_power  = iwl3945_send_tx_power,
2661         .is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr,
2662
2663         .debugfs_ops = {
2664                 .rx_stats_read = iwl3945_ucode_rx_stats_read,
2665                 .tx_stats_read = iwl3945_ucode_tx_stats_read,
2666                 .general_stats_read = iwl3945_ucode_general_stats_read,
2667         },
2668 };
2669
2670 static const struct iwl_legacy_ops iwl3945_legacy_ops = {
2671         .post_associate = iwl3945_post_associate,
2672         .config_ap = iwl3945_config_ap,
2673         .manage_ibss_station = iwl3945_manage_ibss_station,
2674 };
2675
2676 static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
2677         .get_hcmd_size = iwl3945_get_hcmd_size,
2678         .build_addsta_hcmd = iwl3945_build_addsta_hcmd,
2679         .request_scan = iwl3945_request_scan,
2680         .post_scan = iwl3945_post_scan,
2681 };
2682
2683 static const struct iwl_ops iwl3945_ops = {
2684         .lib = &iwl3945_lib,
2685         .hcmd = &iwl3945_hcmd,
2686         .utils = &iwl3945_hcmd_utils,
2687         .led = &iwl3945_led_ops,
2688         .legacy = &iwl3945_legacy_ops,
2689         .ieee80211_ops = &iwl3945_hw_ops,
2690 };
2691
2692 static struct iwl_base_params iwl3945_base_params = {
2693         .eeprom_size = IWL3945_EEPROM_IMG_SIZE,
2694         .num_of_queues = IWL39_NUM_QUEUES,
2695         .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
2696         .set_l0s = false,
2697         .use_bsm = true,
2698         .led_compensation = 64,
2699         .wd_timeout = IWL_DEF_WD_TIMEOUT,
2700 };
2701
2702 static struct iwl_cfg iwl3945_bg_cfg = {
2703         .name = "3945BG",
2704         .fw_name_pre = IWL3945_FW_PRE,
2705         .ucode_api_max = IWL3945_UCODE_API_MAX,
2706         .ucode_api_min = IWL3945_UCODE_API_MIN,
2707         .sku = IWL_SKU_G,
2708         .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
2709         .ops = &iwl3945_ops,
2710         .mod_params = &iwl3945_mod_params,
2711         .base_params = &iwl3945_base_params,
2712         .led_mode = IWL_LED_BLINK,
2713 };
2714
2715 static struct iwl_cfg iwl3945_abg_cfg = {
2716         .name = "3945ABG",
2717         .fw_name_pre = IWL3945_FW_PRE,
2718         .ucode_api_max = IWL3945_UCODE_API_MAX,
2719         .ucode_api_min = IWL3945_UCODE_API_MIN,
2720         .sku = IWL_SKU_A|IWL_SKU_G,
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,
2726 };
2727
2728 DEFINE_PCI_DEVICE_TABLE(iwl3945_hw_card_ids) = {
2729         {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)},
2730         {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)},
2731         {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)},
2732         {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)},
2733         {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)},
2734         {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)},
2735         {0}
2736 };
2737
2738 MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids);