1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/ieee80211_radiotap.h>
44 #include <net/lib80211.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwl3945"
52 #include "iwl-3945-fh.h"
53 #include "iwl-commands.h"
55 #include "iwl-helpers.h"
59 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
60 struct iwl_tx_queue *txq);
63 * module name, copyright, version, etc.
66 #define DRV_DESCRIPTION \
67 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
69 #ifdef CONFIG_IWL3945_DEBUG
75 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
81 #define IWL39_VERSION "1.2.26k" VD VS
82 #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
83 #define DRV_AUTHOR "<ilw@linux.intel.com>"
84 #define DRV_VERSION IWL39_VERSION
87 MODULE_DESCRIPTION(DRV_DESCRIPTION);
88 MODULE_VERSION(DRV_VERSION);
89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
90 MODULE_LICENSE("GPL");
92 /* module parameters */
93 struct iwl_mod_params iwl3945_mod_params = {
94 .num_of_queues = IWL39_MAX_NUM_QUEUES,
96 /* the rest are 0 by default */
99 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
102 * Theory of operation
104 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
105 * of buffer descriptors, each of which points to one or more data buffers for
106 * the device to read from or fill. Driver and device exchange status of each
107 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
108 * entries in each circular buffer, to protect against confusing empty and full
111 * The device reads or writes the data in the queues via the device's several
112 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
114 * For Tx queue, there are low mark and high mark limits. If, after queuing
115 * the packet for Tx, free space become < low mark, Tx queue stopped. When
116 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
119 * The 3945 operates with six queues: One receive queue, one transmit queue
120 * (#4) for sending commands to the device firmware, and four transmit queues
121 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
122 ***************************************************/
125 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
127 static int iwl3945_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
128 int count, int slots_num, u32 id)
131 q->n_window = slots_num;
134 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
135 * and iwl_queue_dec_wrap are broken. */
136 BUG_ON(!is_power_of_2(count));
138 /* slots_num must be power-of-two size, otherwise
139 * get_cmd_index is broken. */
140 BUG_ON(!is_power_of_2(slots_num));
142 q->low_mark = q->n_window / 4;
146 q->high_mark = q->n_window / 8;
147 if (q->high_mark < 2)
150 q->write_ptr = q->read_ptr = 0;
156 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
158 static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
159 struct iwl_tx_queue *txq, u32 id)
161 struct pci_dev *dev = priv->pci_dev;
163 /* Driver private data, only for Tx (not command) queues,
164 * not shared with device. */
165 if (id != IWL_CMD_QUEUE_NUM) {
166 txq->txb = kmalloc(sizeof(txq->txb[0]) *
167 TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
169 IWL_ERR(priv, "kmalloc for auxiliary BD "
170 "structures failed\n");
176 /* Circular buffer of transmit frame descriptors (TFDs),
177 * shared with device */
178 txq->tfds39 = pci_alloc_consistent(dev,
179 sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX,
183 IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n",
184 sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX);
199 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
201 int iwl3945_tx_queue_init(struct iwl_priv *priv,
202 struct iwl_tx_queue *txq, int slots_num, u32 txq_id)
208 * Alloc buffer array for commands (Tx or other types of commands).
209 * For the command queue (#4), allocate command space + one big
210 * command for scan, since scan command is very huge; the system will
211 * not have two scans at the same time, so only one is needed.
212 * For data Tx queues (all other queues), no super-size command
215 len = sizeof(struct iwl_cmd);
216 for (i = 0; i <= slots_num; i++) {
217 if (i == slots_num) {
218 if (txq_id == IWL_CMD_QUEUE_NUM)
219 len += IWL_MAX_SCAN_SIZE;
224 txq->cmd[i] = kmalloc(len, GFP_KERNEL);
229 /* Alloc driver data array and TFD circular buffer */
230 rc = iwl3945_tx_queue_alloc(priv, txq, txq_id);
234 txq->need_update = 0;
236 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
237 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
238 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
240 /* Initialize queue high/low-water, head/tail indexes */
241 iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
243 /* Tell device where to find queue, enable DMA channel. */
244 iwl3945_hw_tx_queue_init(priv, txq);
248 for (i = 0; i < slots_num; i++) {
253 if (txq_id == IWL_CMD_QUEUE_NUM) {
254 kfree(txq->cmd[slots_num]);
255 txq->cmd[slots_num] = NULL;
261 * iwl3945_tx_queue_free - Deallocate DMA queue.
262 * @txq: Transmit queue to deallocate.
264 * Empty queue by removing and destroying all BD's.
266 * 0-fill, but do not free "txq" descriptor structure.
268 void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
270 struct iwl_queue *q = &txq->q;
271 struct pci_dev *dev = priv->pci_dev;
277 /* first, empty all BD's */
278 for (; q->write_ptr != q->read_ptr;
279 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
280 iwl3945_hw_txq_free_tfd(priv, txq);
282 len = sizeof(struct iwl_cmd) * q->n_window;
283 if (q->id == IWL_CMD_QUEUE_NUM)
284 len += IWL_MAX_SCAN_SIZE;
286 /* De-alloc array of command/tx buffers */
287 for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
290 /* De-alloc circular buffer of TFDs */
292 pci_free_consistent(dev, sizeof(struct iwl3945_tfd) *
293 txq->q.n_bd, txq->tfds39, txq->q.dma_addr);
295 /* De-alloc array of per-TFD driver data */
299 /* 0-fill queue descriptor structure */
300 memset(txq, 0, sizeof(*txq));
303 /*************** STATION TABLE MANAGEMENT ****
304 * mac80211 should be examined to determine if sta_info is duplicating
305 * the functionality provided here
308 /**************************************************************/
309 #if 0 /* temporary disable till we add real remove station */
311 * iwl3945_remove_station - Remove driver's knowledge of station.
313 * NOTE: This does not remove station from device's station table.
315 static u8 iwl3945_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
317 int index = IWL_INVALID_STATION;
321 spin_lock_irqsave(&priv->sta_lock, flags);
325 else if (is_broadcast_ether_addr(addr))
326 index = priv->hw_params.bcast_sta_id;
328 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
329 if (priv->stations_39[i].used &&
330 !compare_ether_addr(priv->stations_39[i].sta.sta.addr,
336 if (unlikely(index == IWL_INVALID_STATION))
339 if (priv->stations_39[index].used) {
340 priv->stations_39[index].used = 0;
341 priv->num_stations--;
344 BUG_ON(priv->num_stations < 0);
347 spin_unlock_irqrestore(&priv->sta_lock, flags);
353 * iwl3945_clear_stations_table - Clear the driver's station table
355 * NOTE: This does not clear or otherwise alter the device's station table.
357 static void iwl3945_clear_stations_table(struct iwl_priv *priv)
361 spin_lock_irqsave(&priv->sta_lock, flags);
363 priv->num_stations = 0;
364 memset(priv->stations_39, 0, sizeof(priv->stations_39));
366 spin_unlock_irqrestore(&priv->sta_lock, flags);
370 * iwl3945_add_station - Add station to station tables in driver and device
372 u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags)
375 int index = IWL_INVALID_STATION;
376 struct iwl3945_station_entry *station;
377 unsigned long flags_spin;
380 spin_lock_irqsave(&priv->sta_lock, flags_spin);
383 else if (is_broadcast_ether_addr(addr))
384 index = priv->hw_params.bcast_sta_id;
386 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
387 if (!compare_ether_addr(priv->stations_39[i].sta.sta.addr,
393 if (!priv->stations_39[i].used &&
394 index == IWL_INVALID_STATION)
398 /* These two conditions has the same outcome but keep them separate
399 since they have different meaning */
400 if (unlikely(index == IWL_INVALID_STATION)) {
401 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
405 if (priv->stations_39[index].used &&
406 !compare_ether_addr(priv->stations_39[index].sta.sta.addr, addr)) {
407 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
411 IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index, addr);
412 station = &priv->stations_39[index];
414 priv->num_stations++;
416 /* Set up the REPLY_ADD_STA command to send to device */
417 memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd));
418 memcpy(station->sta.sta.addr, addr, ETH_ALEN);
419 station->sta.mode = 0;
420 station->sta.sta.sta_id = index;
421 station->sta.station_flags = 0;
423 if (priv->band == IEEE80211_BAND_5GHZ)
424 rate = IWL_RATE_6M_PLCP;
426 rate = IWL_RATE_1M_PLCP;
428 /* Turn on both antennas for the station... */
429 station->sta.rate_n_flags =
430 iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK);
432 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
434 /* Add station to device's station table */
435 iwl3945_send_add_station(priv, &station->sta, flags);
441 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
443 #define IWL_CMD(x) case x: return #x
444 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
447 * iwl3945_enqueue_hcmd - enqueue a uCode command
448 * @priv: device private data point
449 * @cmd: a point to the ucode command structure
451 * The function returns < 0 values to indicate the operation is
452 * failed. On success, it turns the index (> 0) of command in the
455 static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
457 struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
458 struct iwl_queue *q = &txq->q;
459 struct iwl3945_tfd *tfd;
460 struct iwl_cmd *out_cmd;
462 u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
463 dma_addr_t phys_addr;
468 /* If any of the command structures end up being larger than
469 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
470 * we will need to increase the size of the TFD entries */
471 BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
472 !(cmd->meta.flags & CMD_SIZE_HUGE));
475 if (iwl_is_rfkill(priv)) {
476 IWL_DEBUG_INFO("Not sending command - RF KILL");
480 if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
481 IWL_ERR(priv, "No space for Tx\n");
485 spin_lock_irqsave(&priv->hcmd_lock, flags);
487 tfd = &txq->tfds39[q->write_ptr];
488 memset(tfd, 0, sizeof(*tfd));
490 idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
491 out_cmd = txq->cmd[idx];
493 out_cmd->hdr.cmd = cmd->id;
494 memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
495 memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
497 /* At this point, the out_cmd now has all of the incoming cmd
500 out_cmd->hdr.flags = 0;
501 out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
502 INDEX_TO_SEQ(q->write_ptr));
503 if (out_cmd->meta.flags & CMD_SIZE_HUGE)
504 out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
506 len = (idx == TFD_CMD_SLOTS) ?
507 IWL_MAX_SCAN_SIZE : sizeof(struct iwl_cmd);
509 phys_addr = pci_map_single(priv->pci_dev, out_cmd,
510 len, PCI_DMA_TODEVICE);
511 pci_unmap_addr_set(&out_cmd->meta, mapping, phys_addr);
512 pci_unmap_len_set(&out_cmd->meta, len, len);
513 phys_addr += offsetof(struct iwl_cmd, hdr);
515 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
517 pad = U32_PAD(cmd->len);
518 tfd->control_flags |= cpu_to_le32(TFD_CTL_PAD_SET(pad));
520 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
521 "%d bytes at %d[%d]:%d\n",
522 get_cmd_string(out_cmd->hdr.cmd),
523 out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
524 fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
526 txq->need_update = 1;
528 /* Increment and update queue's write index */
529 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
530 ret = iwl3945_tx_queue_update_write_ptr(priv, txq);
532 spin_unlock_irqrestore(&priv->hcmd_lock, flags);
533 return ret ? ret : idx;
536 static int iwl3945_send_cmd_async(struct iwl_priv *priv,
537 struct iwl_host_cmd *cmd)
541 BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
543 /* An asynchronous command can not expect an SKB to be set. */
544 BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
546 /* An asynchronous command MUST have a callback. */
547 BUG_ON(!cmd->meta.u.callback);
549 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
552 ret = iwl3945_enqueue_hcmd(priv, cmd);
555 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
556 get_cmd_string(cmd->id), ret);
562 static int iwl3945_send_cmd_sync(struct iwl_priv *priv,
563 struct iwl_host_cmd *cmd)
568 BUG_ON(cmd->meta.flags & CMD_ASYNC);
570 /* A synchronous command can not have a callback set. */
571 BUG_ON(cmd->meta.u.callback != NULL);
573 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) {
575 "Error sending %s: Already sending a host command\n",
576 get_cmd_string(cmd->id));
581 set_bit(STATUS_HCMD_ACTIVE, &priv->status);
583 if (cmd->meta.flags & CMD_WANT_SKB)
584 cmd->meta.source = &cmd->meta;
586 cmd_idx = iwl3945_enqueue_hcmd(priv, cmd);
590 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
591 get_cmd_string(cmd->id), ret);
595 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
596 !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
597 HOST_COMPLETE_TIMEOUT);
599 if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
600 IWL_ERR(priv, "Error sending %s: time out after %dms\n",
601 get_cmd_string(cmd->id),
602 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
604 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
610 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
611 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
612 get_cmd_string(cmd->id));
616 if (test_bit(STATUS_FW_ERROR, &priv->status)) {
617 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
618 get_cmd_string(cmd->id));
622 if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
623 IWL_ERR(priv, "Error: Response NULL in '%s'\n",
624 get_cmd_string(cmd->id));
633 if (cmd->meta.flags & CMD_WANT_SKB) {
634 struct iwl_cmd *qcmd;
636 /* Cancel the CMD_WANT_SKB flag for the cmd in the
637 * TX cmd queue. Otherwise in case the cmd comes
638 * in later, it will possibly set an invalid
639 * address (cmd->meta.source). */
640 qcmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
641 qcmd->meta.flags &= ~CMD_WANT_SKB;
644 if (cmd->meta.u.skb) {
645 dev_kfree_skb_any(cmd->meta.u.skb);
646 cmd->meta.u.skb = NULL;
649 clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status);
653 int iwl3945_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
655 if (cmd->meta.flags & CMD_ASYNC)
656 return iwl3945_send_cmd_async(priv, cmd);
658 return iwl3945_send_cmd_sync(priv, cmd);
661 int iwl3945_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
663 struct iwl_host_cmd cmd = {
669 return iwl3945_send_cmd_sync(priv, &cmd);
672 static int __must_check iwl3945_send_cmd_u32(struct iwl_priv *priv, u8 id, u32 val)
674 struct iwl_host_cmd cmd = {
680 return iwl3945_send_cmd_sync(priv, &cmd);
683 int iwl3945_send_statistics_request(struct iwl_priv *priv)
685 return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
689 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
690 * @band: 2.4 or 5 GHz band
691 * @channel: Any channel valid for the requested band
693 * In addition to setting the staging RXON, priv->band is also set.
695 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
696 * in the staging RXON flag structure based on the band
698 static int iwl3945_set_rxon_channel(struct iwl_priv *priv,
699 enum ieee80211_band band,
702 if (!iwl3945_get_channel_info(priv, band, channel)) {
703 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
708 if ((le16_to_cpu(priv->staging39_rxon.channel) == channel) &&
709 (priv->band == band))
712 priv->staging39_rxon.channel = cpu_to_le16(channel);
713 if (band == IEEE80211_BAND_5GHZ)
714 priv->staging39_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
716 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
720 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band);
726 * iwl3945_check_rxon_cmd - validate RXON structure is valid
728 * NOTE: This is really only useful during development and can eventually
729 * be #ifdef'd out once the driver is stable and folks aren't actively
732 static int iwl3945_check_rxon_cmd(struct iwl_priv *priv)
736 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
738 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
739 error |= le32_to_cpu(rxon->flags &
740 (RXON_FLG_TGJ_NARROW_BAND_MSK |
741 RXON_FLG_RADAR_DETECT_MSK));
743 IWL_WARN(priv, "check 24G fields %d | %d\n",
746 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
747 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
749 IWL_WARN(priv, "check 52 fields %d | %d\n",
751 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
753 IWL_WARN(priv, "check 52 CCK %d | %d\n",
756 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
758 IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
760 /* make sure basic rates 6Mbps and 1Mbps are supported */
761 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
762 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
764 IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
766 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
768 IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
770 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
771 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
773 IWL_WARN(priv, "check CCK and short slot %d | %d\n",
776 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
777 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
779 IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
782 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
783 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
785 IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
788 if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
789 error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK |
790 RXON_FLG_ANT_A_MSK)) == 0);
792 IWL_WARN(priv, "check antenna %d %d\n", counter++, error);
795 IWL_WARN(priv, "Tuning to channel %d\n",
796 le16_to_cpu(rxon->channel));
799 IWL_ERR(priv, "Not a valid rxon_assoc_cmd field values\n");
806 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
807 * @priv: staging_rxon is compared to active_rxon
809 * If the RXON structure is changing enough to require a new tune,
810 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
811 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
813 static int iwl3945_full_rxon_required(struct iwl_priv *priv)
816 /* These items are only settable from the full RXON command */
817 if (!(iwl3945_is_associated(priv)) ||
818 compare_ether_addr(priv->staging39_rxon.bssid_addr,
819 priv->active39_rxon.bssid_addr) ||
820 compare_ether_addr(priv->staging39_rxon.node_addr,
821 priv->active39_rxon.node_addr) ||
822 compare_ether_addr(priv->staging39_rxon.wlap_bssid_addr,
823 priv->active39_rxon.wlap_bssid_addr) ||
824 (priv->staging39_rxon.dev_type != priv->active39_rxon.dev_type) ||
825 (priv->staging39_rxon.channel != priv->active39_rxon.channel) ||
826 (priv->staging39_rxon.air_propagation !=
827 priv->active39_rxon.air_propagation) ||
828 (priv->staging39_rxon.assoc_id != priv->active39_rxon.assoc_id))
831 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
832 * be updated with the RXON_ASSOC command -- however only some
833 * flag transitions are allowed using RXON_ASSOC */
835 /* Check if we are not switching bands */
836 if ((priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
837 (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK))
840 /* Check if we are switching association toggle */
841 if ((priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
842 (priv->active39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
848 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
851 struct iwl_rx_packet *res = NULL;
852 struct iwl3945_rxon_assoc_cmd rxon_assoc;
853 struct iwl_host_cmd cmd = {
854 .id = REPLY_RXON_ASSOC,
855 .len = sizeof(rxon_assoc),
856 .meta.flags = CMD_WANT_SKB,
859 const struct iwl3945_rxon_cmd *rxon1 = &priv->staging39_rxon;
860 const struct iwl3945_rxon_cmd *rxon2 = &priv->active39_rxon;
862 if ((rxon1->flags == rxon2->flags) &&
863 (rxon1->filter_flags == rxon2->filter_flags) &&
864 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
865 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
866 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
870 rxon_assoc.flags = priv->staging39_rxon.flags;
871 rxon_assoc.filter_flags = priv->staging39_rxon.filter_flags;
872 rxon_assoc.ofdm_basic_rates = priv->staging39_rxon.ofdm_basic_rates;
873 rxon_assoc.cck_basic_rates = priv->staging39_rxon.cck_basic_rates;
874 rxon_assoc.reserved = 0;
876 rc = iwl3945_send_cmd_sync(priv, &cmd);
880 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
881 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
882 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
886 priv->alloc_rxb_skb--;
887 dev_kfree_skb_any(cmd.meta.u.skb);
893 * iwl3945_commit_rxon - commit staging_rxon to hardware
895 * The RXON command in staging_rxon is committed to the hardware and
896 * the active_rxon structure is updated with the new data. This
897 * function correctly transitions out of the RXON_ASSOC_MSK state if
898 * a HW tune is required based on the RXON structure changes.
900 static int iwl3945_commit_rxon(struct iwl_priv *priv)
902 /* cast away the const for active_rxon in this function */
903 struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active39_rxon;
906 if (!iwl_is_alive(priv))
909 /* always get timestamp with Rx frame */
910 priv->staging39_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
913 priv->staging39_rxon.flags &=
914 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
915 priv->staging39_rxon.flags |= iwl3945_get_antenna_flags(priv);
917 rc = iwl3945_check_rxon_cmd(priv);
919 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
923 /* If we don't need to send a full RXON, we can use
924 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
925 * and other flags for the current radio configuration. */
926 if (!iwl3945_full_rxon_required(priv)) {
927 rc = iwl3945_send_rxon_assoc(priv);
929 IWL_ERR(priv, "Error setting RXON_ASSOC "
930 "configuration (%d).\n", rc);
934 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
939 /* If we are currently associated and the new config requires
940 * an RXON_ASSOC and the new config wants the associated mask enabled,
941 * we must clear the associated from the active configuration
942 * before we apply the new config */
943 if (iwl3945_is_associated(priv) &&
944 (priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
945 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
946 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
948 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
949 sizeof(struct iwl3945_rxon_cmd),
950 &priv->active39_rxon);
952 /* If the mask clearing failed then we set
953 * active_rxon back to what it was previously */
955 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
956 IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
957 "configuration (%d).\n", rc);
962 IWL_DEBUG_INFO("Sending RXON\n"
963 "* with%s RXON_FILTER_ASSOC_MSK\n"
966 ((priv->staging39_rxon.filter_flags &
967 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
968 le16_to_cpu(priv->staging39_rxon.channel),
969 priv->staging_rxon.bssid_addr);
971 /* Apply the new configuration */
972 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
973 sizeof(struct iwl3945_rxon_cmd), &priv->staging39_rxon);
975 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
979 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
981 iwl3945_clear_stations_table(priv);
983 /* If we issue a new RXON command which required a tune then we must
984 * send a new TXPOWER command or we won't be able to Tx any frames */
985 rc = iwl3945_hw_reg_send_txpower(priv);
987 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
991 /* Add the broadcast address so we can send broadcast frames */
992 if (iwl3945_add_station(priv, iwl_bcast_addr, 0, 0) ==
993 IWL_INVALID_STATION) {
994 IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
998 /* If we have set the ASSOC_MSK and we are in BSS mode then
999 * add the IWL_AP_ID to the station rate table */
1000 if (iwl3945_is_associated(priv) &&
1001 (priv->iw_mode == NL80211_IFTYPE_STATION))
1002 if (iwl3945_add_station(priv, priv->active39_rxon.bssid_addr, 1, 0)
1003 == IWL_INVALID_STATION) {
1004 IWL_ERR(priv, "Error adding AP address for transmit\n");
1008 /* Init the hardware's rate fallback order based on the band */
1009 rc = iwl3945_init_hw_rate_table(priv);
1011 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
1018 static int iwl3945_send_bt_config(struct iwl_priv *priv)
1020 struct iwl_bt_cmd bt_cmd = {
1028 return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG,
1029 sizeof(bt_cmd), &bt_cmd);
1032 static int iwl3945_send_scan_abort(struct iwl_priv *priv)
1035 struct iwl_rx_packet *res;
1036 struct iwl_host_cmd cmd = {
1037 .id = REPLY_SCAN_ABORT_CMD,
1038 .meta.flags = CMD_WANT_SKB,
1041 /* If there isn't a scan actively going on in the hardware
1042 * then we are in between scan bands and not actually
1043 * actively scanning, so don't send the abort command */
1044 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
1045 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1049 rc = iwl3945_send_cmd_sync(priv, &cmd);
1051 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1055 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1056 if (res->u.status != CAN_ABORT_STATUS) {
1057 /* The scan abort will return 1 for success or
1058 * 2 for "failure". A failure condition can be
1059 * due to simply not being in an active scan which
1060 * can occur if we send the scan abort before we
1061 * the microcode has notified us that a scan is
1063 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
1064 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1065 clear_bit(STATUS_SCAN_HW, &priv->status);
1068 dev_kfree_skb_any(cmd.meta.u.skb);
1073 static int iwl3945_add_sta_sync_callback(struct iwl_priv *priv,
1074 struct iwl_cmd *cmd, struct sk_buff *skb)
1076 struct iwl_rx_packet *res = NULL;
1079 IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
1083 res = (struct iwl_rx_packet *)skb->data;
1084 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1085 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1090 switch (res->u.add_sta.status) {
1091 case ADD_STA_SUCCESS_MSK:
1097 /* We didn't cache the SKB; let the caller free it */
1101 int iwl3945_send_add_station(struct iwl_priv *priv,
1102 struct iwl3945_addsta_cmd *sta, u8 flags)
1104 struct iwl_rx_packet *res = NULL;
1106 struct iwl_host_cmd cmd = {
1107 .id = REPLY_ADD_STA,
1108 .len = sizeof(struct iwl3945_addsta_cmd),
1109 .meta.flags = flags,
1113 if (flags & CMD_ASYNC)
1114 cmd.meta.u.callback = iwl3945_add_sta_sync_callback;
1116 cmd.meta.flags |= CMD_WANT_SKB;
1118 rc = iwl3945_send_cmd(priv, &cmd);
1120 if (rc || (flags & CMD_ASYNC))
1123 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1124 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1125 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1131 switch (res->u.add_sta.status) {
1132 case ADD_STA_SUCCESS_MSK:
1133 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1137 IWL_WARN(priv, "REPLY_ADD_STA failed\n");
1142 priv->alloc_rxb_skb--;
1143 dev_kfree_skb_any(cmd.meta.u.skb);
1148 static int iwl3945_update_sta_key_info(struct iwl_priv *priv,
1149 struct ieee80211_key_conf *keyconf,
1152 unsigned long flags;
1153 __le16 key_flags = 0;
1155 switch (keyconf->alg) {
1157 key_flags |= STA_KEY_FLG_CCMP;
1158 key_flags |= cpu_to_le16(
1159 keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
1160 key_flags &= ~STA_KEY_FLG_INVALID;
1167 spin_lock_irqsave(&priv->sta_lock, flags);
1168 priv->stations_39[sta_id].keyinfo.alg = keyconf->alg;
1169 priv->stations_39[sta_id].keyinfo.keylen = keyconf->keylen;
1170 memcpy(priv->stations_39[sta_id].keyinfo.key, keyconf->key,
1173 memcpy(priv->stations_39[sta_id].sta.key.key, keyconf->key,
1175 priv->stations_39[sta_id].sta.key.key_flags = key_flags;
1176 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1177 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1179 spin_unlock_irqrestore(&priv->sta_lock, flags);
1181 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1182 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
1186 static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
1188 unsigned long flags;
1190 spin_lock_irqsave(&priv->sta_lock, flags);
1191 memset(&priv->stations_39[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key));
1192 memset(&priv->stations_39[sta_id].sta.key, 0,
1193 sizeof(struct iwl4965_keyinfo));
1194 priv->stations_39[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
1195 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1196 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1197 spin_unlock_irqrestore(&priv->sta_lock, flags);
1199 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1200 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
1204 static void iwl3945_clear_free_frames(struct iwl_priv *priv)
1206 struct list_head *element;
1208 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1209 priv->frames_count);
1211 while (!list_empty(&priv->free_frames)) {
1212 element = priv->free_frames.next;
1214 kfree(list_entry(element, struct iwl3945_frame, list));
1215 priv->frames_count--;
1218 if (priv->frames_count) {
1219 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
1220 priv->frames_count);
1221 priv->frames_count = 0;
1225 static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
1227 struct iwl3945_frame *frame;
1228 struct list_head *element;
1229 if (list_empty(&priv->free_frames)) {
1230 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
1232 IWL_ERR(priv, "Could not allocate frame!\n");
1236 priv->frames_count++;
1240 element = priv->free_frames.next;
1242 return list_entry(element, struct iwl3945_frame, list);
1245 static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
1247 memset(frame, 0, sizeof(*frame));
1248 list_add(&frame->list, &priv->free_frames);
1251 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
1252 struct ieee80211_hdr *hdr,
1256 if (!iwl3945_is_associated(priv) || !priv->ibss_beacon ||
1257 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
1258 (priv->iw_mode != NL80211_IFTYPE_AP)))
1261 if (priv->ibss_beacon->len > left)
1264 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
1266 return priv->ibss_beacon->len;
1269 static u8 iwl3945_rate_get_lowest_plcp(struct iwl_priv *priv)
1275 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1276 rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
1278 rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
1280 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
1281 i = iwl3945_rates[i].next_ieee) {
1282 if (rate_mask & (1 << i))
1283 return iwl3945_rates[i].plcp;
1286 /* No valid rate was found. Assign the lowest one */
1287 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1288 return IWL_RATE_1M_PLCP;
1290 return IWL_RATE_6M_PLCP;
1293 static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
1295 struct iwl3945_frame *frame;
1296 unsigned int frame_size;
1300 frame = iwl3945_get_free_frame(priv);
1303 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
1308 rate = iwl3945_rate_get_lowest_plcp(priv);
1310 frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
1312 rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
1315 iwl3945_free_frame(priv, frame);
1320 /******************************************************************************
1322 * EEPROM related functions
1324 ******************************************************************************/
1326 static void get_eeprom_mac(struct iwl_priv *priv, u8 *mac)
1328 memcpy(mac, priv->eeprom39.mac_address, 6);
1332 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1333 * embedded controller) as EEPROM reader; each read is a series of pulses
1334 * to/from the EEPROM chip, not a single event, so even reads could conflict
1335 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1336 * simply claims ownership, which should be safe when this function is called
1337 * (i.e. before loading uCode!).
1339 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
1341 _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
1346 * iwl3945_eeprom_init - read EEPROM contents
1348 * Load the EEPROM contents from adapter into priv->eeprom39
1350 * NOTE: This routine uses the non-debug IO access functions.
1352 int iwl3945_eeprom_init(struct iwl_priv *priv)
1354 u16 *e = (u16 *)&priv->eeprom39;
1355 u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
1356 int sz = sizeof(priv->eeprom39);
1360 /* The EEPROM structure has several padding buffers within it
1361 * and when adding new EEPROM maps is subject to programmer errors
1362 * which may be very difficult to identify without explicitly
1363 * checking the resulting size of the eeprom map. */
1364 BUILD_BUG_ON(sizeof(priv->eeprom39) != IWL_EEPROM_IMAGE_SIZE);
1366 if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
1367 IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
1371 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1372 ret = iwl3945_eeprom_acquire_semaphore(priv);
1374 IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
1378 /* eeprom is an array of 16bit values */
1379 for (addr = 0; addr < sz; addr += sizeof(u16)) {
1382 _iwl_write32(priv, CSR_EEPROM_REG,
1383 CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
1384 _iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
1385 ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
1386 CSR_EEPROM_REG_READ_VALID_MSK,
1387 IWL_EEPROM_ACCESS_TIMEOUT);
1389 IWL_ERR(priv, "Time out reading EEPROM[%d]\n", addr);
1393 r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
1394 e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
1400 static void iwl3945_unset_hw_params(struct iwl_priv *priv)
1402 if (priv->shared_virt)
1403 pci_free_consistent(priv->pci_dev,
1404 sizeof(struct iwl3945_shared),
1410 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1412 * return : set the bit for each supported rate insert in ie
1414 static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate,
1415 u16 basic_rate, int *left)
1417 u16 ret_rates = 0, bit;
1422 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
1423 if (bit & supported_rate) {
1425 rates[*cnt] = iwl3945_rates[i].ieee |
1426 ((bit & basic_rate) ? 0x80 : 0x00);
1430 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
1439 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1441 static u16 iwl3945_fill_probe_req(struct iwl_priv *priv,
1442 struct ieee80211_mgmt *frame,
1447 u16 active_rates, ret_rates, cck_rates;
1449 /* Make sure there is enough space for the probe request,
1450 * two mandatory IEs and the data */
1456 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
1457 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
1458 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
1459 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
1460 frame->seq_ctrl = 0;
1462 /* fill in our indirect SSID IE */
1469 pos = &(frame->u.probe_req.variable[0]);
1470 *pos++ = WLAN_EID_SSID;
1473 /* fill in supported rate */
1479 /* ... fill it in... */
1480 *pos++ = WLAN_EID_SUPP_RATES;
1483 priv->active_rate = priv->rates_mask;
1484 active_rates = priv->active_rate;
1485 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
1487 cck_rates = IWL_CCK_RATES_MASK & active_rates;
1488 ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates,
1489 priv->active_rate_basic, &left);
1490 active_rates &= ~ret_rates;
1492 ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates,
1493 priv->active_rate_basic, &left);
1494 active_rates &= ~ret_rates;
1498 if (active_rates == 0)
1501 /* fill in supported extended rate */
1506 /* ... fill it in... */
1507 *pos++ = WLAN_EID_EXT_SUPP_RATES;
1509 iwl3945_supported_rate_to_ie(pos, active_rates,
1510 priv->active_rate_basic, &left);
1521 static int iwl3945_send_qos_params_command(struct iwl_priv *priv,
1522 struct iwl_qosparam_cmd *qos)
1525 return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM,
1526 sizeof(struct iwl_qosparam_cmd), qos);
1529 static void iwl3945_activate_qos(struct iwl_priv *priv, u8 force)
1531 unsigned long flags;
1533 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1536 spin_lock_irqsave(&priv->lock, flags);
1537 priv->qos_data.def_qos_parm.qos_flags = 0;
1539 if (priv->qos_data.qos_cap.q_AP.queue_request &&
1540 !priv->qos_data.qos_cap.q_AP.txop_request)
1541 priv->qos_data.def_qos_parm.qos_flags |=
1542 QOS_PARAM_FLG_TXOP_TYPE_MSK;
1544 if (priv->qos_data.qos_active)
1545 priv->qos_data.def_qos_parm.qos_flags |=
1546 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
1548 spin_unlock_irqrestore(&priv->lock, flags);
1550 if (force || iwl3945_is_associated(priv)) {
1551 IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n",
1552 priv->qos_data.qos_active);
1554 iwl3945_send_qos_params_command(priv,
1555 &(priv->qos_data.def_qos_parm));
1560 * Power management (not Tx power!) functions
1562 #define MSEC_TO_USEC 1024
1565 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1566 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1567 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1568 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1569 __constant_cpu_to_le32(X1), \
1570 __constant_cpu_to_le32(X2), \
1571 __constant_cpu_to_le32(X3), \
1572 __constant_cpu_to_le32(X4)}
1574 /* default power management (not Tx power) table values */
1576 static struct iwl_power_vec_entry range_0[IWL39_POWER_AC] = {
1577 {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1578 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1579 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1580 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1581 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1582 {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1586 static struct iwl_power_vec_entry range_1[IWL39_POWER_AC] = {
1587 {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1588 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1589 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1590 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1591 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1592 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1593 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1594 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1595 {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1596 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1599 int iwl3945_power_init_handle(struct iwl_priv *priv)
1602 struct iwl3945_power_mgr *pow_data;
1603 int size = sizeof(struct iwl_power_vec_entry) * IWL39_POWER_AC;
1606 IWL_DEBUG_POWER("Initialize power \n");
1608 pow_data = &(priv->power_data_39);
1610 memset(pow_data, 0, sizeof(*pow_data));
1612 pow_data->active_index = IWL_POWER_RANGE_0;
1613 pow_data->dtim_val = 0xffff;
1615 memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
1616 memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
1618 rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
1622 struct iwl_powertable_cmd *cmd;
1624 IWL_DEBUG_POWER("adjust power command flags\n");
1626 for (i = 0; i < IWL39_POWER_AC; i++) {
1627 cmd = &pow_data->pwr_range_0[i].cmd;
1630 cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
1632 cmd->flags |= IWL_POWER_PCI_PM_MSK;
1638 static int iwl3945_update_power_cmd(struct iwl_priv *priv,
1639 struct iwl_powertable_cmd *cmd, u32 mode)
1644 struct iwl_power_vec_entry *range;
1646 struct iwl3945_power_mgr *pow_data;
1648 if (mode > IWL_POWER_INDEX_5) {
1649 IWL_DEBUG_POWER("Error invalid power mode \n");
1652 pow_data = &(priv->power_data_39);
1654 if (pow_data->active_index == IWL_POWER_RANGE_0)
1655 range = &pow_data->pwr_range_0[0];
1657 range = &pow_data->pwr_range_1[1];
1659 memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd));
1661 #ifdef IWL_MAC80211_DISABLE
1662 if (priv->assoc_network != NULL) {
1663 unsigned long flags;
1665 period = priv->assoc_network->tim.tim_period;
1667 #endif /*IWL_MAC80211_DISABLE */
1668 skip = range[mode].no_dtim;
1677 cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
1679 __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
1680 max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
1681 cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
1684 for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
1685 if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
1686 cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
1689 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
1690 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
1691 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
1692 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1693 le32_to_cpu(cmd->sleep_interval[0]),
1694 le32_to_cpu(cmd->sleep_interval[1]),
1695 le32_to_cpu(cmd->sleep_interval[2]),
1696 le32_to_cpu(cmd->sleep_interval[3]),
1697 le32_to_cpu(cmd->sleep_interval[4]));
1702 static int iwl3945_send_power_mode(struct iwl_priv *priv, u32 mode)
1704 u32 uninitialized_var(final_mode);
1706 struct iwl_powertable_cmd cmd;
1708 /* If on battery, set to 3,
1709 * if plugged into AC power, set to CAM ("continuously aware mode"),
1710 * else user level */
1712 case IWL39_POWER_BATTERY:
1713 final_mode = IWL_POWER_INDEX_3;
1715 case IWL39_POWER_AC:
1716 final_mode = IWL_POWER_MODE_CAM;
1723 iwl3945_update_power_cmd(priv, &cmd, final_mode);
1725 /* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
1726 rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD,
1727 sizeof(struct iwl3945_powertable_cmd), &cmd);
1729 if (final_mode == IWL_POWER_MODE_CAM)
1730 clear_bit(STATUS_POWER_PMI, &priv->status);
1732 set_bit(STATUS_POWER_PMI, &priv->status);
1737 #define MAX_UCODE_BEACON_INTERVAL 1024
1738 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1740 static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
1743 u16 beacon_factor = 0;
1746 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
1747 / MAX_UCODE_BEACON_INTERVAL;
1748 new_val = beacon_val / beacon_factor;
1750 return cpu_to_le16(new_val);
1753 static void iwl3945_setup_rxon_timing(struct iwl_priv *priv)
1755 u64 interval_tm_unit;
1757 unsigned long flags;
1758 struct ieee80211_conf *conf = NULL;
1761 conf = ieee80211_get_hw_conf(priv->hw);
1763 spin_lock_irqsave(&priv->lock, flags);
1764 priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
1765 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
1767 tsf = priv->timestamp;
1769 beacon_int = priv->beacon_int;
1770 spin_unlock_irqrestore(&priv->lock, flags);
1772 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
1773 if (beacon_int == 0) {
1774 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
1775 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
1777 priv->rxon_timing.beacon_interval =
1778 cpu_to_le16(beacon_int);
1779 priv->rxon_timing.beacon_interval =
1780 iwl3945_adjust_beacon_interval(
1781 le16_to_cpu(priv->rxon_timing.beacon_interval));
1784 priv->rxon_timing.atim_window = 0;
1786 priv->rxon_timing.beacon_interval =
1787 iwl3945_adjust_beacon_interval(conf->beacon_int);
1788 /* TODO: we need to get atim_window from upper stack
1789 * for now we set to 0 */
1790 priv->rxon_timing.atim_window = 0;
1794 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
1795 result = do_div(tsf, interval_tm_unit);
1796 priv->rxon_timing.beacon_init_val =
1797 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
1800 ("beacon interval %d beacon timer %d beacon tim %d\n",
1801 le16_to_cpu(priv->rxon_timing.beacon_interval),
1802 le32_to_cpu(priv->rxon_timing.beacon_init_val),
1803 le16_to_cpu(priv->rxon_timing.atim_window));
1806 static int iwl3945_scan_initiate(struct iwl_priv *priv)
1808 if (!iwl_is_ready_rf(priv)) {
1809 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1813 if (test_bit(STATUS_SCANNING, &priv->status)) {
1814 IWL_DEBUG_SCAN("Scan already in progress.\n");
1818 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1819 IWL_DEBUG_SCAN("Scan request while abort pending. "
1824 IWL_DEBUG_INFO("Starting scan...\n");
1825 if (priv->cfg->sku & IWL_SKU_G)
1826 priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ);
1827 if (priv->cfg->sku & IWL_SKU_A)
1828 priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ);
1829 set_bit(STATUS_SCANNING, &priv->status);
1830 priv->scan_start = jiffies;
1831 priv->scan_pass_start = priv->scan_start;
1833 queue_work(priv->workqueue, &priv->request_scan);
1838 static int iwl3945_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
1840 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
1843 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
1845 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
1850 static void iwl3945_set_flags_for_phymode(struct iwl_priv *priv,
1851 enum ieee80211_band band)
1853 if (band == IEEE80211_BAND_5GHZ) {
1854 priv->staging39_rxon.flags &=
1855 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1856 | RXON_FLG_CCK_MSK);
1857 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1859 /* Copied from iwl3945_bg_post_associate() */
1860 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1861 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1863 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1865 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1866 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1868 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1869 priv->staging39_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1870 priv->staging39_rxon.flags &= ~RXON_FLG_CCK_MSK;
1875 * initialize rxon structure with default values from eeprom
1877 static void iwl3945_connection_init_rx_config(struct iwl_priv *priv,
1880 const struct iwl_channel_info *ch_info;
1882 memset(&priv->staging39_rxon, 0, sizeof(priv->staging39_rxon));
1885 case NL80211_IFTYPE_AP:
1886 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_AP;
1889 case NL80211_IFTYPE_STATION:
1890 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_ESS;
1891 priv->staging39_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1894 case NL80211_IFTYPE_ADHOC:
1895 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1896 priv->staging39_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1897 priv->staging39_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1898 RXON_FILTER_ACCEPT_GRP_MSK;
1901 case NL80211_IFTYPE_MONITOR:
1902 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
1903 priv->staging39_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
1904 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
1907 IWL_ERR(priv, "Unsupported interface type %d\n", mode);
1912 /* TODO: Figure out when short_preamble would be set and cache from
1914 if (!hw_to_local(priv->hw)->short_preamble)
1915 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1917 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1920 ch_info = iwl3945_get_channel_info(priv, priv->band,
1921 le16_to_cpu(priv->active39_rxon.channel));
1924 ch_info = &priv->channel_info[0];
1927 * in some case A channels are all non IBSS
1928 * in this case force B/G channel
1930 if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info)))
1931 ch_info = &priv->channel_info[0];
1933 priv->staging39_rxon.channel = cpu_to_le16(ch_info->channel);
1934 if (is_channel_a_band(ch_info))
1935 priv->band = IEEE80211_BAND_5GHZ;
1937 priv->band = IEEE80211_BAND_2GHZ;
1939 iwl3945_set_flags_for_phymode(priv, priv->band);
1941 priv->staging39_rxon.ofdm_basic_rates =
1942 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1943 priv->staging39_rxon.cck_basic_rates =
1944 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1947 static int iwl3945_set_mode(struct iwl_priv *priv, int mode)
1949 if (mode == NL80211_IFTYPE_ADHOC) {
1950 const struct iwl_channel_info *ch_info;
1952 ch_info = iwl3945_get_channel_info(priv,
1954 le16_to_cpu(priv->staging39_rxon.channel));
1956 if (!ch_info || !is_channel_ibss(ch_info)) {
1957 IWL_ERR(priv, "channel %d not IBSS channel\n",
1958 le16_to_cpu(priv->staging39_rxon.channel));
1963 iwl3945_connection_init_rx_config(priv, mode);
1964 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1966 iwl3945_clear_stations_table(priv);
1968 /* don't commit rxon if rf-kill is on*/
1969 if (!iwl_is_ready_rf(priv))
1972 cancel_delayed_work(&priv->scan_check);
1973 if (iwl_scan_cancel_timeout(priv, 100)) {
1974 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
1975 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1979 iwl3945_commit_rxon(priv);
1984 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
1985 struct ieee80211_tx_info *info,
1986 struct iwl_cmd *cmd,
1987 struct sk_buff *skb_frag,
1990 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
1991 struct iwl3945_hw_key *keyinfo =
1992 &priv->stations_39[info->control.hw_key->hw_key_idx].keyinfo;
1994 switch (keyinfo->alg) {
1996 tx->sec_ctl = TX_CMD_SEC_CCM;
1997 memcpy(tx->key, keyinfo->key, keyinfo->keylen);
1998 IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
2003 tx->sec_ctl = TX_CMD_SEC_TKIP;
2006 memcpy(tx->tkip_mic.byte, skb_frag->tail - 8,
2009 memset(tx->tkip_mic.byte, 0, 8);
2014 tx->sec_ctl = TX_CMD_SEC_WEP |
2015 (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
2017 if (keyinfo->keylen == 13)
2018 tx->sec_ctl |= TX_CMD_SEC_KEY128;
2020 memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen);
2022 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2023 "with key %d\n", info->control.hw_key->hw_key_idx);
2027 IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
2033 * handle build REPLY_TX command notification.
2035 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
2036 struct iwl_cmd *cmd,
2037 struct ieee80211_tx_info *info,
2038 struct ieee80211_hdr *hdr, u8 std_id)
2040 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
2041 __le32 tx_flags = tx->tx_flags;
2042 __le16 fc = hdr->frame_control;
2043 u8 rc_flags = info->control.rates[0].flags;
2045 tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2046 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
2047 tx_flags |= TX_CMD_FLG_ACK_MSK;
2048 if (ieee80211_is_mgmt(fc))
2049 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2050 if (ieee80211_is_probe_resp(fc) &&
2051 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
2052 tx_flags |= TX_CMD_FLG_TSF_MSK;
2054 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
2055 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2058 tx->sta_id = std_id;
2059 if (ieee80211_has_morefrags(fc))
2060 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
2062 if (ieee80211_is_data_qos(fc)) {
2063 u8 *qc = ieee80211_get_qos_ctl(hdr);
2064 tx->tid_tspec = qc[0] & 0xf;
2065 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
2067 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2070 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
2071 tx_flags |= TX_CMD_FLG_RTS_MSK;
2072 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
2073 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
2074 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
2075 tx_flags |= TX_CMD_FLG_CTS_MSK;
2078 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
2079 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
2081 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
2082 if (ieee80211_is_mgmt(fc)) {
2083 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
2084 tx->timeout.pm_frame_timeout = cpu_to_le16(3);
2086 tx->timeout.pm_frame_timeout = cpu_to_le16(2);
2088 tx->timeout.pm_frame_timeout = 0;
2089 #ifdef CONFIG_IWL3945_LEDS
2090 priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
2094 tx->driver_txop = 0;
2095 tx->tx_flags = tx_flags;
2096 tx->next_frame_len = 0;
2100 * iwl3945_get_sta_id - Find station's index within station table
2102 static int iwl3945_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
2105 u16 fc = le16_to_cpu(hdr->frame_control);
2107 /* If this frame is broadcast or management, use broadcast station id */
2108 if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
2109 is_multicast_ether_addr(hdr->addr1))
2110 return priv->hw_params.bcast_sta_id;
2112 switch (priv->iw_mode) {
2114 /* If we are a client station in a BSS network, use the special
2115 * AP station entry (that's the only station we communicate with) */
2116 case NL80211_IFTYPE_STATION:
2119 /* If we are an AP, then find the station, or use BCAST */
2120 case NL80211_IFTYPE_AP:
2121 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
2122 if (sta_id != IWL_INVALID_STATION)
2124 return priv->hw_params.bcast_sta_id;
2126 /* If this frame is going out to an IBSS network, find the station,
2127 * or create a new station table entry */
2128 case NL80211_IFTYPE_ADHOC: {
2129 /* Create new station table entry */
2130 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
2131 if (sta_id != IWL_INVALID_STATION)
2134 sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
2136 if (sta_id != IWL_INVALID_STATION)
2139 IWL_DEBUG_DROP("Station %pM not in station map. "
2140 "Defaulting to broadcast...\n",
2142 iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
2143 return priv->hw_params.bcast_sta_id;
2145 /* If we are in monitor mode, use BCAST. This is required for
2146 * packet injection. */
2147 case NL80211_IFTYPE_MONITOR:
2148 return priv->hw_params.bcast_sta_id;
2151 IWL_WARN(priv, "Unknown mode of operation: %d\n",
2153 return priv->hw_params.bcast_sta_id;
2158 * start REPLY_TX command process
2160 static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
2162 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
2163 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2164 struct iwl3945_tfd *tfd;
2165 struct iwl3945_tx_cmd *tx;
2166 struct iwl_tx_queue *txq = NULL;
2167 struct iwl_queue *q = NULL;
2168 struct iwl_cmd *out_cmd = NULL;
2169 dma_addr_t phys_addr;
2170 dma_addr_t txcmd_phys;
2171 int txq_id = skb_get_queue_mapping(skb);
2172 u16 len, idx, len_org, hdr_len;
2179 u8 wait_write_ptr = 0;
2181 unsigned long flags;
2184 spin_lock_irqsave(&priv->lock, flags);
2185 if (iwl_is_rfkill(priv)) {
2186 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2190 if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
2191 IWL_ERR(priv, "ERROR: No TX rate available.\n");
2195 unicast = !is_multicast_ether_addr(hdr->addr1);
2198 fc = hdr->frame_control;
2200 #ifdef CONFIG_IWL3945_DEBUG
2201 if (ieee80211_is_auth(fc))
2202 IWL_DEBUG_TX("Sending AUTH frame\n");
2203 else if (ieee80211_is_assoc_req(fc))
2204 IWL_DEBUG_TX("Sending ASSOC frame\n");
2205 else if (ieee80211_is_reassoc_req(fc))
2206 IWL_DEBUG_TX("Sending REASSOC frame\n");
2209 /* drop all data frame if we are not associated */
2210 if (ieee80211_is_data(fc) &&
2211 (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */
2212 (!iwl3945_is_associated(priv) ||
2213 ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
2214 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2218 spin_unlock_irqrestore(&priv->lock, flags);
2220 hdr_len = ieee80211_hdrlen(fc);
2222 /* Find (or create) index into station table for destination station */
2223 sta_id = iwl3945_get_sta_id(priv, hdr);
2224 if (sta_id == IWL_INVALID_STATION) {
2225 IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
2230 IWL_DEBUG_RATE("station Id %d\n", sta_id);
2232 if (ieee80211_is_data_qos(fc)) {
2233 qc = ieee80211_get_qos_ctl(hdr);
2234 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
2235 seq_number = priv->stations_39[sta_id].tid[tid].seq_number &
2237 hdr->seq_ctrl = cpu_to_le16(seq_number) |
2239 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
2243 /* Descriptor for chosen Tx queue */
2244 txq = &priv->txq[txq_id];
2247 spin_lock_irqsave(&priv->lock, flags);
2249 /* Set up first empty TFD within this queue's circular TFD buffer */
2250 tfd = &txq->tfds39[q->write_ptr];
2251 memset(tfd, 0, sizeof(*tfd));
2252 idx = get_cmd_index(q, q->write_ptr, 0);
2254 /* Set up driver data for this TFD */
2255 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
2256 txq->txb[q->write_ptr].skb[0] = skb;
2258 /* Init first empty entry in queue's array of Tx/cmd buffers */
2259 out_cmd = txq->cmd[idx];
2260 tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
2261 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
2262 memset(tx, 0, sizeof(*tx));
2265 * Set up the Tx-command (not MAC!) header.
2266 * Store the chosen Tx queue and TFD index within the sequence field;
2267 * after Tx, uCode's Tx response will return this value so driver can
2268 * locate the frame within the tx queue and do post-tx processing.
2270 out_cmd->hdr.cmd = REPLY_TX;
2271 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
2272 INDEX_TO_SEQ(q->write_ptr)));
2274 /* Copy MAC header from skb into command buffer */
2275 memcpy(tx->hdr, hdr, hdr_len);
2278 * Use the first empty entry in this queue's command buffer array
2279 * to contain the Tx command and MAC header concatenated together
2280 * (payload data will be in another buffer).
2281 * Size of this varies, due to varying MAC header length.
2282 * If end is not dword aligned, we'll have 2 extra bytes at the end
2283 * of the MAC header (device reads on dword boundaries).
2284 * We'll tell device about this padding later.
2286 len = sizeof(struct iwl3945_tx_cmd) +
2287 sizeof(struct iwl_cmd_header) + hdr_len;
2290 len = (len + 3) & ~3;
2297 /* Physical address of this Tx command's header (not MAC header!),
2298 * within command buffer array. */
2299 txcmd_phys = pci_map_single(priv->pci_dev,
2300 out_cmd, sizeof(struct iwl_cmd),
2302 pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
2303 pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd));
2304 /* Add buffer containing Tx command and MAC(!) header to TFD's
2306 txcmd_phys += offsetof(struct iwl_cmd, hdr);
2308 /* Add buffer containing Tx command and MAC(!) header to TFD's
2310 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
2312 if (info->control.hw_key)
2313 iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0);
2315 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2316 * if any (802.11 null frames have no payload). */
2317 len = skb->len - hdr_len;
2319 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
2320 len, PCI_DMA_TODEVICE);
2321 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
2325 /* If there is no payload, then we use only one Tx buffer */
2326 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(1));
2328 /* Else use 2 buffers.
2329 * Tell 3945 about any padding after MAC header */
2330 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(2) |
2331 TFD_CTL_PAD_SET(U32_PAD(len)));
2333 /* Total # bytes to be transmitted */
2334 len = (u16)skb->len;
2335 tx->len = cpu_to_le16(len);
2337 /* TODO need this for burst mode later on */
2338 iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
2340 /* set is_hcca to 0; it probably will never be implemented */
2341 iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
2343 tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
2344 tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
2346 if (!ieee80211_has_morefrags(hdr->frame_control)) {
2347 txq->need_update = 1;
2349 priv->stations_39[sta_id].tid[tid].seq_number = seq_number;
2352 txq->need_update = 0;
2355 iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
2357 iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
2358 ieee80211_hdrlen(fc));
2360 /* Tell device the write index *just past* this latest filled TFD */
2361 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
2362 rc = iwl3945_tx_queue_update_write_ptr(priv, txq);
2363 spin_unlock_irqrestore(&priv->lock, flags);
2368 if ((iwl_queue_space(q) < q->high_mark)
2369 && priv->mac80211_registered) {
2370 if (wait_write_ptr) {
2371 spin_lock_irqsave(&priv->lock, flags);
2372 txq->need_update = 1;
2373 iwl3945_tx_queue_update_write_ptr(priv, txq);
2374 spin_unlock_irqrestore(&priv->lock, flags);
2377 ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
2383 spin_unlock_irqrestore(&priv->lock, flags);
2388 static void iwl3945_set_rate(struct iwl_priv *priv)
2390 const struct ieee80211_supported_band *sband = NULL;
2391 struct ieee80211_rate *rate;
2394 sband = iwl_get_hw_mode(priv, priv->band);
2396 IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
2400 priv->active_rate = 0;
2401 priv->active_rate_basic = 0;
2403 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2404 sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5");
2406 for (i = 0; i < sband->n_bitrates; i++) {
2407 rate = &sband->bitrates[i];
2408 if ((rate->hw_value < IWL_RATE_COUNT) &&
2409 !(rate->flags & IEEE80211_CHAN_DISABLED)) {
2410 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2411 rate->hw_value, iwl3945_rates[rate->hw_value].plcp);
2412 priv->active_rate |= (1 << rate->hw_value);
2416 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2417 priv->active_rate, priv->active_rate_basic);
2420 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2421 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2424 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
2425 priv->staging39_rxon.cck_basic_rates =
2426 ((priv->active_rate_basic &
2427 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
2429 priv->staging39_rxon.cck_basic_rates =
2430 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
2432 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
2433 priv->staging39_rxon.ofdm_basic_rates =
2434 ((priv->active_rate_basic &
2435 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
2436 IWL_FIRST_OFDM_RATE) & 0xFF;
2438 priv->staging39_rxon.ofdm_basic_rates =
2439 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2442 static void iwl3945_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
2444 unsigned long flags;
2446 if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
2449 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2450 disable_radio ? "OFF" : "ON");
2452 if (disable_radio) {
2453 iwl_scan_cancel(priv);
2454 /* FIXME: This is a workaround for AP */
2455 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2456 spin_lock_irqsave(&priv->lock, flags);
2457 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2458 CSR_UCODE_SW_BIT_RFKILL);
2459 spin_unlock_irqrestore(&priv->lock, flags);
2460 iwl_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
2461 set_bit(STATUS_RF_KILL_SW, &priv->status);
2466 spin_lock_irqsave(&priv->lock, flags);
2467 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2469 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2470 spin_unlock_irqrestore(&priv->lock, flags);
2475 spin_lock_irqsave(&priv->lock, flags);
2476 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2477 if (!iwl_grab_nic_access(priv))
2478 iwl_release_nic_access(priv);
2479 spin_unlock_irqrestore(&priv->lock, flags);
2481 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
2482 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2483 "disabled by HW switch\n");
2488 queue_work(priv->workqueue, &priv->restart);
2492 void iwl3945_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
2493 u32 decrypt_res, struct ieee80211_rx_status *stats)
2496 le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
2498 if (priv->active39_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
2501 if (!(fc & IEEE80211_FCTL_PROTECTED))
2504 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
2505 switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
2506 case RX_RES_STATUS_SEC_TYPE_TKIP:
2507 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2508 RX_RES_STATUS_BAD_ICV_MIC)
2509 stats->flag |= RX_FLAG_MMIC_ERROR;
2510 case RX_RES_STATUS_SEC_TYPE_WEP:
2511 case RX_RES_STATUS_SEC_TYPE_CCMP:
2512 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2513 RX_RES_STATUS_DECRYPT_OK) {
2514 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2515 stats->flag |= RX_FLAG_DECRYPTED;
2524 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2526 #include "iwl-spectrum.h"
2528 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2529 #define BEACON_TIME_MASK_HIGH 0xFF000000
2530 #define TIME_UNIT 1024
2533 * extended beacon time format
2534 * time in usec will be changed into a 32-bit value in 8:24 format
2535 * the high 1 byte is the beacon counts
2536 * the lower 3 bytes is the time in usec within one beacon interval
2539 static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
2543 u32 interval = beacon_interval * 1024;
2545 if (!interval || !usec)
2548 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
2549 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
2551 return (quot << 24) + rem;
2554 /* base is usually what we get from ucode with each received frame,
2555 * the same as HW timer counter counting down
2558 static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
2560 u32 base_low = base & BEACON_TIME_MASK_LOW;
2561 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
2562 u32 interval = beacon_interval * TIME_UNIT;
2563 u32 res = (base & BEACON_TIME_MASK_HIGH) +
2564 (addon & BEACON_TIME_MASK_HIGH);
2566 if (base_low > addon_low)
2567 res += base_low - addon_low;
2568 else if (base_low < addon_low) {
2569 res += interval + base_low - addon_low;
2574 return cpu_to_le32(res);
2577 static int iwl3945_get_measurement(struct iwl_priv *priv,
2578 struct ieee80211_measurement_params *params,
2581 struct iwl_spectrum_cmd spectrum;
2582 struct iwl_rx_packet *res;
2583 struct iwl_host_cmd cmd = {
2584 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
2585 .data = (void *)&spectrum,
2586 .meta.flags = CMD_WANT_SKB,
2588 u32 add_time = le64_to_cpu(params->start_time);
2590 int spectrum_resp_status;
2591 int duration = le16_to_cpu(params->duration);
2593 if (iwl3945_is_associated(priv))
2595 iwl3945_usecs_to_beacons(
2596 le64_to_cpu(params->start_time) - priv->last_tsf,
2597 le16_to_cpu(priv->rxon_timing.beacon_interval));
2599 memset(&spectrum, 0, sizeof(spectrum));
2601 spectrum.channel_count = cpu_to_le16(1);
2603 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
2604 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
2605 cmd.len = sizeof(spectrum);
2606 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
2608 if (iwl3945_is_associated(priv))
2609 spectrum.start_time =
2610 iwl3945_add_beacon_time(priv->last_beacon_time,
2612 le16_to_cpu(priv->rxon_timing.beacon_interval));
2614 spectrum.start_time = 0;
2616 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
2617 spectrum.channels[0].channel = params->channel;
2618 spectrum.channels[0].type = type;
2619 if (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK)
2620 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
2621 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
2623 rc = iwl3945_send_cmd_sync(priv, &cmd);
2627 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
2628 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
2629 IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
2633 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
2634 switch (spectrum_resp_status) {
2635 case 0: /* Command will be handled */
2636 if (res->u.spectrum.id != 0xff) {
2637 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2638 res->u.spectrum.id);
2639 priv->measurement_status &= ~MEASUREMENT_READY;
2641 priv->measurement_status |= MEASUREMENT_ACTIVE;
2645 case 1: /* Command will not be handled */
2650 dev_kfree_skb_any(cmd.meta.u.skb);
2656 static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
2657 struct iwl_rx_mem_buffer *rxb)
2659 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2660 struct iwl_alive_resp *palive;
2661 struct delayed_work *pwork;
2663 palive = &pkt->u.alive_frame;
2665 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2667 palive->is_valid, palive->ver_type,
2668 palive->ver_subtype);
2670 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
2671 IWL_DEBUG_INFO("Initialization Alive received.\n");
2672 memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
2673 sizeof(struct iwl_alive_resp));
2674 pwork = &priv->init_alive_start;
2676 IWL_DEBUG_INFO("Runtime Alive received.\n");
2677 memcpy(&priv->card_alive, &pkt->u.alive_frame,
2678 sizeof(struct iwl_alive_resp));
2679 pwork = &priv->alive_start;
2680 iwl3945_disable_events(priv);
2683 /* We delay the ALIVE response by 5ms to
2684 * give the HW RF Kill time to activate... */
2685 if (palive->is_valid == UCODE_VALID_OK)
2686 queue_delayed_work(priv->workqueue, pwork,
2687 msecs_to_jiffies(5));
2689 IWL_WARN(priv, "uCode did not respond OK.\n");
2692 static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
2693 struct iwl_rx_mem_buffer *rxb)
2695 #ifdef CONFIG_IWLWIFI_DEBUG
2696 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2699 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
2703 static void iwl3945_rx_reply_error(struct iwl_priv *priv,
2704 struct iwl_rx_mem_buffer *rxb)
2706 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2708 IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
2709 "seq 0x%04X ser 0x%08X\n",
2710 le32_to_cpu(pkt->u.err_resp.error_type),
2711 get_cmd_string(pkt->u.err_resp.cmd_id),
2712 pkt->u.err_resp.cmd_id,
2713 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2714 le32_to_cpu(pkt->u.err_resp.error_info));
2717 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2719 static void iwl3945_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
2721 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2722 struct iwl3945_rxon_cmd *rxon = (void *)&priv->active39_rxon;
2723 struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
2724 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2725 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
2726 rxon->channel = csa->channel;
2727 priv->staging39_rxon.channel = csa->channel;
2730 static void iwl3945_rx_spectrum_measure_notif(struct iwl_priv *priv,
2731 struct iwl_rx_mem_buffer *rxb)
2733 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2734 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2735 struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
2737 if (!report->state) {
2738 IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
2739 "Spectrum Measure Notification: Start\n");
2743 memcpy(&priv->measure_report, report, sizeof(*report));
2744 priv->measurement_status |= MEASUREMENT_READY;
2748 static void iwl3945_rx_pm_sleep_notif(struct iwl_priv *priv,
2749 struct iwl_rx_mem_buffer *rxb)
2751 #ifdef CONFIG_IWL3945_DEBUG
2752 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2753 struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
2754 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2755 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2759 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
2760 struct iwl_rx_mem_buffer *rxb)
2762 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2763 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2764 "notification for %s:\n",
2765 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
2766 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw,
2767 le32_to_cpu(pkt->len));
2770 static void iwl3945_bg_beacon_update(struct work_struct *work)
2772 struct iwl_priv *priv =
2773 container_of(work, struct iwl_priv, beacon_update);
2774 struct sk_buff *beacon;
2776 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2777 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
2780 IWL_ERR(priv, "update beacon failed\n");
2784 mutex_lock(&priv->mutex);
2785 /* new beacon skb is allocated every time; dispose previous.*/
2786 if (priv->ibss_beacon)
2787 dev_kfree_skb(priv->ibss_beacon);
2789 priv->ibss_beacon = beacon;
2790 mutex_unlock(&priv->mutex);
2792 iwl3945_send_beacon_cmd(priv);
2795 static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
2796 struct iwl_rx_mem_buffer *rxb)
2798 #ifdef CONFIG_IWL3945_DEBUG
2799 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2800 struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
2801 u8 rate = beacon->beacon_notify_hdr.rate;
2803 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2804 "tsf %d %d rate %d\n",
2805 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
2806 beacon->beacon_notify_hdr.failure_frame,
2807 le32_to_cpu(beacon->ibss_mgr_status),
2808 le32_to_cpu(beacon->high_tsf),
2809 le32_to_cpu(beacon->low_tsf), rate);
2812 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
2813 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
2814 queue_work(priv->workqueue, &priv->beacon_update);
2817 /* Service response to REPLY_SCAN_CMD (0x80) */
2818 static void iwl3945_rx_reply_scan(struct iwl_priv *priv,
2819 struct iwl_rx_mem_buffer *rxb)
2821 #ifdef CONFIG_IWL3945_DEBUG
2822 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2823 struct iwl_scanreq_notification *notif =
2824 (struct iwl_scanreq_notification *)pkt->u.raw;
2826 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
2830 /* Service SCAN_START_NOTIFICATION (0x82) */
2831 static void iwl3945_rx_scan_start_notif(struct iwl_priv *priv,
2832 struct iwl_rx_mem_buffer *rxb)
2834 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2835 struct iwl_scanstart_notification *notif =
2836 (struct iwl_scanstart_notification *)pkt->u.raw;
2837 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
2838 IWL_DEBUG_SCAN("Scan start: "
2840 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2842 notif->band ? "bg" : "a",
2844 notif->tsf_low, notif->status, notif->beacon_timer);
2847 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2848 static void iwl3945_rx_scan_results_notif(struct iwl_priv *priv,
2849 struct iwl_rx_mem_buffer *rxb)
2851 #ifdef CONFIG_IWLWIFI_DEBUG
2852 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2853 struct iwl_scanresults_notification *notif =
2854 (struct iwl_scanresults_notification *)pkt->u.raw;
2857 IWL_DEBUG_SCAN("Scan ch.res: "
2859 "(TSF: 0x%08X:%08X) - %d "
2860 "elapsed=%lu usec (%dms since last)\n",
2862 notif->band ? "bg" : "a",
2863 le32_to_cpu(notif->tsf_high),
2864 le32_to_cpu(notif->tsf_low),
2865 le32_to_cpu(notif->statistics[0]),
2866 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
2867 jiffies_to_msecs(elapsed_jiffies
2868 (priv->last_scan_jiffies, jiffies)));
2870 priv->last_scan_jiffies = jiffies;
2871 priv->next_scan_jiffies = 0;
2874 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2875 static void iwl3945_rx_scan_complete_notif(struct iwl_priv *priv,
2876 struct iwl_rx_mem_buffer *rxb)
2878 #ifdef CONFIG_IWLWIFI_DEBUG
2879 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2880 struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
2883 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2884 scan_notif->scanned_channels,
2885 scan_notif->tsf_low,
2886 scan_notif->tsf_high, scan_notif->status);
2888 /* The HW is no longer scanning */
2889 clear_bit(STATUS_SCAN_HW, &priv->status);
2891 /* The scan completion notification came in, so kill that timer... */
2892 cancel_delayed_work(&priv->scan_check);
2894 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2895 (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ?
2897 jiffies_to_msecs(elapsed_jiffies
2898 (priv->scan_pass_start, jiffies)));
2900 /* Remove this scanned band from the list of pending
2901 * bands to scan, band G precedes A in order of scanning
2902 * as seen in iwl3945_bg_request_scan */
2903 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ))
2904 priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ);
2905 else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ))
2906 priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ);
2908 /* If a request to abort was given, or the scan did not succeed
2909 * then we reset the scan state machine and terminate,
2910 * re-queuing another scan if one has been requested */
2911 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2912 IWL_DEBUG_INFO("Aborted scan completed.\n");
2913 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
2915 /* If there are more bands on this scan pass reschedule */
2916 if (priv->scan_bands > 0)
2920 priv->last_scan_jiffies = jiffies;
2921 priv->next_scan_jiffies = 0;
2922 IWL_DEBUG_INFO("Setting scan to off\n");
2924 clear_bit(STATUS_SCANNING, &priv->status);
2926 IWL_DEBUG_INFO("Scan took %dms\n",
2927 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
2929 queue_work(priv->workqueue, &priv->scan_completed);
2934 priv->scan_pass_start = jiffies;
2935 queue_work(priv->workqueue, &priv->request_scan);
2938 /* Handle notification from uCode that card's power state is changing
2939 * due to software, hardware, or critical temperature RFKILL */
2940 static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
2941 struct iwl_rx_mem_buffer *rxb)
2943 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2944 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
2945 unsigned long status = priv->status;
2947 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2948 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
2949 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
2951 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2952 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2954 if (flags & HW_CARD_DISABLED)
2955 set_bit(STATUS_RF_KILL_HW, &priv->status);
2957 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2960 if (flags & SW_CARD_DISABLED)
2961 set_bit(STATUS_RF_KILL_SW, &priv->status);
2963 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2965 iwl_scan_cancel(priv);
2967 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
2968 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
2969 (test_bit(STATUS_RF_KILL_SW, &status) !=
2970 test_bit(STATUS_RF_KILL_SW, &priv->status)))
2971 queue_work(priv->workqueue, &priv->rf_kill);
2973 wake_up_interruptible(&priv->wait_command_queue);
2977 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
2979 * Setup the RX handlers for each of the reply types sent from the uCode
2982 * This function chains into the hardware specific files for them to setup
2983 * any hardware specific handlers as well.
2985 static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
2987 priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
2988 priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
2989 priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error;
2990 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa;
2991 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
2992 iwl3945_rx_spectrum_measure_notif;
2993 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif;
2994 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
2995 iwl3945_rx_pm_debug_statistics_notif;
2996 priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
2999 * The same handler is used for both the REPLY to a discrete
3000 * statistics request from the host as well as for the periodic
3001 * statistics notifications (after received beacons) from the uCode.
3003 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
3004 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
3006 priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan;
3007 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif;
3008 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
3009 iwl3945_rx_scan_results_notif;
3010 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
3011 iwl3945_rx_scan_complete_notif;
3012 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
3014 /* Set up hardware specific Rx handlers */
3015 iwl3945_hw_rx_handler_setup(priv);
3019 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3020 * When FW advances 'R' index, all entries between old and new 'R' index
3021 * need to be reclaimed.
3023 static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv,
3024 int txq_id, int index)
3026 struct iwl_tx_queue *txq = &priv->txq[txq_id];
3027 struct iwl_queue *q = &txq->q;
3030 if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
3031 IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
3032 "is out of range [0-%d] %d %d.\n", txq_id,
3033 index, q->n_bd, q->write_ptr, q->read_ptr);
3037 for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
3038 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
3040 IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", index,
3041 q->write_ptr, q->read_ptr);
3042 queue_work(priv->workqueue, &priv->restart);
3051 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3052 * @rxb: Rx buffer to reclaim
3054 * If an Rx buffer has an async callback associated with it the callback
3055 * will be executed. The attached skb (if present) will only be freed
3056 * if the callback returns 1
3058 static void iwl3945_tx_cmd_complete(struct iwl_priv *priv,
3059 struct iwl_rx_mem_buffer *rxb)
3061 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
3062 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
3063 int txq_id = SEQ_TO_QUEUE(sequence);
3064 int index = SEQ_TO_INDEX(sequence);
3065 int huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
3067 struct iwl_cmd *cmd;
3069 BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
3071 cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
3072 cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
3074 /* Input error checking is done when commands are added to queue. */
3075 if (cmd->meta.flags & CMD_WANT_SKB) {
3076 cmd->meta.source->u.skb = rxb->skb;
3078 } else if (cmd->meta.u.callback &&
3079 !cmd->meta.u.callback(priv, cmd, rxb->skb))
3082 iwl3945_cmd_queue_reclaim(priv, txq_id, index);
3084 if (!(cmd->meta.flags & CMD_ASYNC)) {
3085 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3086 wake_up_interruptible(&priv->wait_command_queue);
3090 /************************** RX-FUNCTIONS ****************************/
3092 * Rx theory of operation
3094 * The host allocates 32 DMA target addresses and passes the host address
3095 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3099 * The host/firmware share two index registers for managing the Rx buffers.
3101 * The READ index maps to the first position that the firmware may be writing
3102 * to -- the driver can read up to (but not including) this position and get
3104 * The READ index is managed by the firmware once the card is enabled.
3106 * The WRITE index maps to the last position the driver has read from -- the
3107 * position preceding WRITE is the last slot the firmware can place a packet.
3109 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3112 * During initialization, the host sets up the READ queue position to the first
3113 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3115 * When the firmware places a packet in a buffer, it will advance the READ index
3116 * and fire the RX interrupt. The driver can then query the READ index and
3117 * process as many packets as possible, moving the WRITE index forward as it
3118 * resets the Rx queue buffers with new memory.
3120 * The management in the driver is as follows:
3121 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3122 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3123 * to replenish the iwl->rxq->rx_free.
3124 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3125 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3126 * 'processed' and 'read' driver indexes as well)
3127 * + A received packet is processed and handed to the kernel network stack,
3128 * detached from the iwl->rxq. The driver 'processed' index is updated.
3129 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3130 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3131 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3132 * were enough free buffers and RX_STALLED is set it is cleared.
3137 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3138 * iwl3945_rx_queue_restock
3139 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3140 * queue, updates firmware pointers, and updates
3141 * the WRITE index. If insufficient rx_free buffers
3142 * are available, schedules iwl3945_rx_replenish
3144 * -- enable interrupts --
3145 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
3146 * READ INDEX, detaching the SKB from the pool.
3147 * Moves the packet buffer from queue to rx_used.
3148 * Calls iwl3945_rx_queue_restock to refill any empty
3155 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3157 static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
3158 dma_addr_t dma_addr)
3160 return cpu_to_le32((u32)dma_addr);
3164 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3166 * If there are slots in the RX queue that need to be restocked,
3167 * and we have free pre-allocated buffers, fill the ranks as much
3168 * as we can, pulling from rx_free.
3170 * This moves the 'write' index forward to catch up with 'processed', and
3171 * also updates the memory address in the firmware to reference the new
3174 static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
3176 struct iwl_rx_queue *rxq = &priv->rxq;
3177 struct list_head *element;
3178 struct iwl_rx_mem_buffer *rxb;
3179 unsigned long flags;
3182 spin_lock_irqsave(&rxq->lock, flags);
3183 write = rxq->write & ~0x7;
3184 while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
3185 /* Get next free Rx buffer, remove from free list */
3186 element = rxq->rx_free.next;
3187 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
3190 /* Point to Rx buffer via next RBD in circular buffer */
3191 rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
3192 rxq->queue[rxq->write] = rxb;
3193 rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
3196 spin_unlock_irqrestore(&rxq->lock, flags);
3197 /* If the pre-allocated buffer pool is dropping low, schedule to
3199 if (rxq->free_count <= RX_LOW_WATERMARK)
3200 queue_work(priv->workqueue, &priv->rx_replenish);
3203 /* If we've added more space for the firmware to place data, tell it.
3204 * Increment device's write pointer in multiples of 8. */
3205 if ((write != (rxq->write & ~0x7))
3206 || (abs(rxq->write - rxq->read) > 7)) {
3207 spin_lock_irqsave(&rxq->lock, flags);
3208 rxq->need_update = 1;
3209 spin_unlock_irqrestore(&rxq->lock, flags);
3210 rc = iwl_rx_queue_update_write_ptr(priv, rxq);
3219 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3221 * When moving to rx_free an SKB is allocated for the slot.
3223 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3224 * This is called as a scheduled work item (except for during initialization)
3226 static void iwl3945_rx_allocate(struct iwl_priv *priv)
3228 struct iwl_rx_queue *rxq = &priv->rxq;
3229 struct list_head *element;
3230 struct iwl_rx_mem_buffer *rxb;
3231 unsigned long flags;
3232 spin_lock_irqsave(&rxq->lock, flags);
3233 while (!list_empty(&rxq->rx_used)) {
3234 element = rxq->rx_used.next;
3235 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
3237 /* Alloc a new receive buffer */
3239 alloc_skb(priv->hw_params.rx_buf_size,
3240 __GFP_NOWARN | GFP_ATOMIC);
3242 if (net_ratelimit())
3243 IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
3244 /* We don't reschedule replenish work here -- we will
3245 * call the restock method and if it still needs
3246 * more buffers it will schedule replenish */
3250 /* If radiotap head is required, reserve some headroom here.
3251 * The physical head count is a variable rx_stats->phy_count.
3252 * We reserve 4 bytes here. Plus these extra bytes, the
3253 * headroom of the physical head should be enough for the
3254 * radiotap head that iwl3945 supported. See iwl3945_rt.
3256 skb_reserve(rxb->skb, 4);
3258 priv->alloc_rxb_skb++;
3261 /* Get physical address of RB/SKB */
3262 rxb->real_dma_addr = pci_map_single(priv->pci_dev,
3264 priv->hw_params.rx_buf_size,
3265 PCI_DMA_FROMDEVICE);
3266 list_add_tail(&rxb->list, &rxq->rx_free);
3269 spin_unlock_irqrestore(&rxq->lock, flags);
3273 * this should be called while priv->lock is locked
3275 static void __iwl3945_rx_replenish(void *data)
3277 struct iwl_priv *priv = data;
3279 iwl3945_rx_allocate(priv);
3280 iwl3945_rx_queue_restock(priv);
3284 void iwl3945_rx_replenish(void *data)
3286 struct iwl_priv *priv = data;
3287 unsigned long flags;
3289 iwl3945_rx_allocate(priv);
3291 spin_lock_irqsave(&priv->lock, flags);
3292 iwl3945_rx_queue_restock(priv);
3293 spin_unlock_irqrestore(&priv->lock, flags);
3296 /* Convert linear signal-to-noise ratio into dB */
3297 static u8 ratio2dB[100] = {
3298 /* 0 1 2 3 4 5 6 7 8 9 */
3299 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3300 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3301 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3302 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3303 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3304 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3305 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3306 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3307 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3308 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3311 /* Calculates a relative dB value from a ratio of linear
3312 * (i.e. not dB) signal levels.
3313 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3314 int iwl3945_calc_db_from_ratio(int sig_ratio)
3316 /* 1000:1 or higher just report as 60 dB */
3317 if (sig_ratio >= 1000)
3320 /* 100:1 or higher, divide by 10 and use table,
3321 * add 20 dB to make up for divide by 10 */
3322 if (sig_ratio >= 100)
3323 return 20 + (int)ratio2dB[sig_ratio/10];
3325 /* We shouldn't see this */
3329 /* Use table for ratios 1:1 - 99:1 */
3330 return (int)ratio2dB[sig_ratio];
3333 #define PERFECT_RSSI (-20) /* dBm */
3334 #define WORST_RSSI (-95) /* dBm */
3335 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3337 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3338 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3339 * about formulas used below. */
3340 int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
3343 int degradation = PERFECT_RSSI - rssi_dbm;
3345 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3346 * as indicator; formula is (signal dbm - noise dbm).
3347 * SNR at or above 40 is a great signal (100%).
3348 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3349 * Weakest usable signal is usually 10 - 15 dB SNR. */
3351 if (rssi_dbm - noise_dbm >= 40)
3353 else if (rssi_dbm < noise_dbm)
3355 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
3357 /* Else use just the signal level.
3358 * This formula is a least squares fit of data points collected and
3359 * compared with a reference system that had a percentage (%) display
3360 * for signal quality. */
3362 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
3363 (15 * RSSI_RANGE + 62 * degradation)) /
3364 (RSSI_RANGE * RSSI_RANGE);
3368 else if (sig_qual < 1)
3375 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3377 * Uses the priv->rx_handlers callback function array to invoke
3378 * the appropriate handlers, including command responses,
3379 * frame-received notifications, and other notifications.
3381 static void iwl3945_rx_handle(struct iwl_priv *priv)
3383 struct iwl_rx_mem_buffer *rxb;
3384 struct iwl_rx_packet *pkt;
3385 struct iwl_rx_queue *rxq = &priv->rxq;
3388 unsigned long flags;
3392 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3393 * buffer that the driver may process (last buffer filled by ucode). */
3394 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
3397 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
3399 /* Rx interrupt, but nothing sent from uCode */
3401 IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
3404 rxb = rxq->queue[i];
3406 /* If an RXB doesn't have a Rx queue slot associated with it,
3407 * then a bug has been introduced in the queue refilling
3408 * routines -- catch it here */
3409 BUG_ON(rxb == NULL);
3411 rxq->queue[i] = NULL;
3413 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->real_dma_addr,
3414 priv->hw_params.rx_buf_size,
3415 PCI_DMA_FROMDEVICE);
3416 pkt = (struct iwl_rx_packet *)rxb->skb->data;
3418 /* Reclaim a command buffer only if this packet is a response
3419 * to a (driver-originated) command.
3420 * If the packet (e.g. Rx frame) originated from uCode,
3421 * there is no command buffer to reclaim.
3422 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3423 * but apparently a few don't get set; catch them here. */
3424 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
3425 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
3426 (pkt->hdr.cmd != REPLY_TX);
3428 /* Based on type of command response or notification,
3429 * handle those that need handling via function in
3430 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3431 if (priv->rx_handlers[pkt->hdr.cmd]) {
3432 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3433 "r = %d, i = %d, %s, 0x%02x\n", r, i,
3434 get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
3435 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
3437 /* No handling needed */
3438 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3439 "r %d i %d No handler needed for %s, 0x%02x\n",
3440 r, i, get_cmd_string(pkt->hdr.cmd),
3445 /* Invoke any callbacks, transfer the skb to caller, and
3446 * fire off the (possibly) blocking iwl3945_send_cmd()
3447 * as we reclaim the driver command queue */
3448 if (rxb && rxb->skb)
3449 iwl3945_tx_cmd_complete(priv, rxb);
3451 IWL_WARN(priv, "Claim null rxb?\n");
3454 /* For now we just don't re-use anything. We can tweak this
3455 * later to try and re-use notification packets and SKBs that
3456 * fail to Rx correctly */
3457 if (rxb->skb != NULL) {
3458 priv->alloc_rxb_skb--;
3459 dev_kfree_skb_any(rxb->skb);
3463 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
3464 priv->hw_params.rx_buf_size,
3465 PCI_DMA_FROMDEVICE);
3466 spin_lock_irqsave(&rxq->lock, flags);
3467 list_add_tail(&rxb->list, &priv->rxq.rx_used);
3468 spin_unlock_irqrestore(&rxq->lock, flags);
3469 i = (i + 1) & RX_QUEUE_MASK;
3470 /* If there are a lot of unused frames,
3471 * restock the Rx queue so ucode won't assert. */
3476 __iwl3945_rx_replenish(priv);
3482 /* Backtrack one entry */
3484 iwl3945_rx_queue_restock(priv);
3488 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
3490 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
3491 struct iwl_tx_queue *txq)
3495 int txq_id = txq->q.id;
3497 if (txq->need_update == 0)
3500 /* if we're trying to save power */
3501 if (test_bit(STATUS_POWER_PMI, &priv->status)) {
3502 /* wake up nic if it's powered down ...
3503 * uCode will wake up, and interrupt us again, so next
3504 * time we'll skip this part. */
3505 reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
3507 if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
3508 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
3509 iwl_set_bit(priv, CSR_GP_CNTRL,
3510 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
3514 /* restore this queue's parameters in nic hardware. */
3515 rc = iwl_grab_nic_access(priv);
3518 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
3519 txq->q.write_ptr | (txq_id << 8));
3520 iwl_release_nic_access(priv);
3522 /* else not in power-save mode, uCode will never sleep when we're
3523 * trying to tx (during RFKILL, we're not trying to tx). */
3525 iwl_write32(priv, HBUS_TARG_WRPTR,
3526 txq->q.write_ptr | (txq_id << 8));
3528 txq->need_update = 0;
3533 #ifdef CONFIG_IWL3945_DEBUG
3534 static void iwl3945_print_rx_config_cmd(struct iwl_priv *priv,
3535 struct iwl3945_rxon_cmd *rxon)
3537 IWL_DEBUG_RADIO("RX CONFIG:\n");
3538 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
3539 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
3540 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
3541 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3542 le32_to_cpu(rxon->filter_flags));
3543 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
3544 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3545 rxon->ofdm_basic_rates);
3546 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
3547 IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr);
3548 IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
3549 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
3553 static void iwl3945_enable_interrupts(struct iwl_priv *priv)
3555 IWL_DEBUG_ISR("Enabling interrupts\n");
3556 set_bit(STATUS_INT_ENABLED, &priv->status);
3557 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
3561 /* call this function to flush any scheduled tasklet */
3562 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
3564 /* wait to make sure we flush pending tasklet*/
3565 synchronize_irq(priv->pci_dev->irq);
3566 tasklet_kill(&priv->irq_tasklet);
3570 static inline void iwl3945_disable_interrupts(struct iwl_priv *priv)
3572 clear_bit(STATUS_INT_ENABLED, &priv->status);
3574 /* disable interrupts from uCode/NIC to host */
3575 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
3577 /* acknowledge/clear/reset any interrupts still pending
3578 * from uCode or flow handler (Rx/Tx DMA) */
3579 iwl_write32(priv, CSR_INT, 0xffffffff);
3580 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
3581 IWL_DEBUG_ISR("Disabled interrupts\n");
3584 static const char *desc_lookup(int i)
3592 return "BAD_CHECKSUM";
3594 return "NMI_INTERRUPT";
3598 return "FATAL_ERROR";
3604 #define ERROR_START_OFFSET (1 * sizeof(u32))
3605 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3607 static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
3610 u32 desc, time, count, base, data1;
3611 u32 blink1, blink2, ilink1, ilink2;
3614 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
3616 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3617 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
3621 rc = iwl_grab_nic_access(priv);
3623 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3627 count = iwl_read_targ_mem(priv, base);
3629 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
3630 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
3631 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
3632 priv->status, count);
3635 IWL_ERR(priv, "Desc Time asrtPC blink2 "
3636 "ilink1 nmiPC Line\n");
3637 for (i = ERROR_START_OFFSET;
3638 i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
3639 i += ERROR_ELEM_SIZE) {
3640 desc = iwl_read_targ_mem(priv, base + i);
3642 iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
3644 iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
3646 iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
3648 iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
3650 iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
3652 iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
3655 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
3656 desc_lookup(desc), desc, time, blink1, blink2,
3657 ilink1, ilink2, data1);
3660 iwl_release_nic_access(priv);
3664 #define EVENT_START_OFFSET (6 * sizeof(u32))
3667 * iwl3945_print_event_log - Dump error event log to syslog
3669 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3671 static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
3672 u32 num_events, u32 mode)
3675 u32 base; /* SRAM byte address of event log header */
3676 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
3677 u32 ptr; /* SRAM byte address of log data */
3678 u32 ev, time, data; /* event log data */
3680 if (num_events == 0)
3683 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3686 event_size = 2 * sizeof(u32);
3688 event_size = 3 * sizeof(u32);
3690 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
3692 /* "time" is actually "data" for mode 0 (no timestamp).
3693 * place event id # at far right for easier visual parsing. */
3694 for (i = 0; i < num_events; i++) {
3695 ev = iwl_read_targ_mem(priv, ptr);
3697 time = iwl_read_targ_mem(priv, ptr);
3701 IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
3703 data = iwl_read_targ_mem(priv, ptr);
3705 IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
3710 static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
3713 u32 base; /* SRAM byte address of event log header */
3714 u32 capacity; /* event log capacity in # entries */
3715 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
3716 u32 num_wraps; /* # times uCode wrapped to top of log */
3717 u32 next_entry; /* index of next entry to be written by uCode */
3718 u32 size; /* # entries that we'll print */
3720 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3721 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3722 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
3726 rc = iwl_grab_nic_access(priv);
3728 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3732 /* event log header */
3733 capacity = iwl_read_targ_mem(priv, base);
3734 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
3735 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
3736 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
3738 size = num_wraps ? capacity : next_entry;
3740 /* bail out if nothing in log */
3742 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
3743 iwl_release_nic_access(priv);
3747 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
3750 /* if uCode has wrapped back to top of log, start at the oldest entry,
3751 * i.e the next one that uCode would fill. */
3753 iwl3945_print_event_log(priv, next_entry,
3754 capacity - next_entry, mode);
3756 /* (then/else) start at top of log */
3757 iwl3945_print_event_log(priv, 0, next_entry, mode);
3759 iwl_release_nic_access(priv);
3763 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
3765 static void iwl3945_irq_handle_error(struct iwl_priv *priv)
3767 /* Set the FW error flag -- cleared on iwl3945_down */
3768 set_bit(STATUS_FW_ERROR, &priv->status);
3770 /* Cancel currently queued command. */
3771 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3773 #ifdef CONFIG_IWL3945_DEBUG
3774 if (priv->debug_level & IWL_DL_FW_ERRORS) {
3775 iwl3945_dump_nic_error_log(priv);
3776 iwl3945_dump_nic_event_log(priv);
3777 iwl3945_print_rx_config_cmd(priv, &priv->staging39_rxon);
3781 wake_up_interruptible(&priv->wait_command_queue);
3783 /* Keep the restart process from trying to send host
3784 * commands by clearing the INIT status bit */
3785 clear_bit(STATUS_READY, &priv->status);
3787 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3788 IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
3789 "Restarting adapter due to uCode error.\n");
3791 if (iwl3945_is_associated(priv)) {
3792 memcpy(&priv->recovery39_rxon, &priv->active39_rxon,
3793 sizeof(priv->recovery39_rxon));
3794 priv->error_recovering = 1;
3796 queue_work(priv->workqueue, &priv->restart);
3800 static void iwl3945_error_recovery(struct iwl_priv *priv)
3802 unsigned long flags;
3804 memcpy(&priv->staging39_rxon, &priv->recovery39_rxon,
3805 sizeof(priv->staging39_rxon));
3806 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3807 iwl3945_commit_rxon(priv);
3809 iwl3945_add_station(priv, priv->bssid, 1, 0);
3811 spin_lock_irqsave(&priv->lock, flags);
3812 priv->assoc_id = le16_to_cpu(priv->staging39_rxon.assoc_id);
3813 priv->error_recovering = 0;
3814 spin_unlock_irqrestore(&priv->lock, flags);
3817 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
3819 u32 inta, handled = 0;
3821 unsigned long flags;
3822 #ifdef CONFIG_IWL3945_DEBUG
3826 spin_lock_irqsave(&priv->lock, flags);
3828 /* Ack/clear/reset pending uCode interrupts.
3829 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
3830 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
3831 inta = iwl_read32(priv, CSR_INT);
3832 iwl_write32(priv, CSR_INT, inta);
3834 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
3835 * Any new interrupts that happen after this, either while we're
3836 * in this tasklet, or later, will show up in next ISR/tasklet. */
3837 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3838 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
3840 #ifdef CONFIG_IWL3945_DEBUG
3841 if (priv->debug_level & IWL_DL_ISR) {
3842 /* just for debug */
3843 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3844 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3845 inta, inta_mask, inta_fh);
3849 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
3850 * atomic, make sure that inta covers all the interrupts that
3851 * we've discovered, even if FH interrupt came in just after
3852 * reading CSR_INT. */
3853 if (inta_fh & CSR39_FH_INT_RX_MASK)
3854 inta |= CSR_INT_BIT_FH_RX;
3855 if (inta_fh & CSR39_FH_INT_TX_MASK)
3856 inta |= CSR_INT_BIT_FH_TX;
3858 /* Now service all interrupt bits discovered above. */
3859 if (inta & CSR_INT_BIT_HW_ERR) {
3860 IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
3862 /* Tell the device to stop sending interrupts */
3863 iwl3945_disable_interrupts(priv);
3865 iwl3945_irq_handle_error(priv);
3867 handled |= CSR_INT_BIT_HW_ERR;
3869 spin_unlock_irqrestore(&priv->lock, flags);
3874 #ifdef CONFIG_IWL3945_DEBUG
3875 if (priv->debug_level & (IWL_DL_ISR)) {
3876 /* NIC fires this, but we don't use it, redundant with WAKEUP */
3877 if (inta & CSR_INT_BIT_SCD)
3878 IWL_DEBUG_ISR("Scheduler finished to transmit "
3879 "the frame/frames.\n");
3881 /* Alive notification via Rx interrupt will do the real work */
3882 if (inta & CSR_INT_BIT_ALIVE)
3883 IWL_DEBUG_ISR("Alive interrupt\n");
3886 /* Safely ignore these bits for debug checks below */
3887 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
3889 /* Error detected by uCode */
3890 if (inta & CSR_INT_BIT_SW_ERR) {
3891 IWL_ERR(priv, "Microcode SW error detected. "
3892 "Restarting 0x%X.\n", inta);
3893 iwl3945_irq_handle_error(priv);
3894 handled |= CSR_INT_BIT_SW_ERR;
3897 /* uCode wakes up after power-down sleep */
3898 if (inta & CSR_INT_BIT_WAKEUP) {
3899 IWL_DEBUG_ISR("Wakeup interrupt\n");
3900 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
3901 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]);
3902 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]);
3903 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]);
3904 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]);
3905 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]);
3906 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]);
3908 handled |= CSR_INT_BIT_WAKEUP;
3911 /* All uCode command responses, including Tx command responses,
3912 * Rx "responses" (frame-received notification), and other
3913 * notifications from uCode come through here*/
3914 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
3915 iwl3945_rx_handle(priv);
3916 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
3919 if (inta & CSR_INT_BIT_FH_TX) {
3920 IWL_DEBUG_ISR("Tx interrupt\n");
3922 iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
3923 if (!iwl_grab_nic_access(priv)) {
3924 iwl_write_direct32(priv, FH39_TCSR_CREDIT
3925 (FH39_SRVC_CHNL), 0x0);
3926 iwl_release_nic_access(priv);
3928 handled |= CSR_INT_BIT_FH_TX;
3931 if (inta & ~handled)
3932 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
3934 if (inta & ~CSR_INI_SET_MASK) {
3935 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
3936 inta & ~CSR_INI_SET_MASK);
3937 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
3940 /* Re-enable all interrupts */
3941 /* only Re-enable if disabled by irq */
3942 if (test_bit(STATUS_INT_ENABLED, &priv->status))
3943 iwl3945_enable_interrupts(priv);
3945 #ifdef CONFIG_IWL3945_DEBUG
3946 if (priv->debug_level & (IWL_DL_ISR)) {
3947 inta = iwl_read32(priv, CSR_INT);
3948 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3949 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3950 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
3951 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
3954 spin_unlock_irqrestore(&priv->lock, flags);
3957 static irqreturn_t iwl3945_isr(int irq, void *data)
3959 struct iwl_priv *priv = data;
3960 u32 inta, inta_mask;
3965 spin_lock(&priv->lock);
3967 /* Disable (but don't clear!) interrupts here to avoid
3968 * back-to-back ISRs and sporadic interrupts from our NIC.
3969 * If we have something to service, the tasklet will re-enable ints.
3970 * If we *don't* have something, we'll re-enable before leaving here. */
3971 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
3972 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
3974 /* Discover which interrupts are active/pending */
3975 inta = iwl_read32(priv, CSR_INT);
3976 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3978 /* Ignore interrupt if there's nothing in NIC to service.
3979 * This may be due to IRQ shared with another device,
3980 * or due to sporadic interrupts thrown from our NIC. */
3981 if (!inta && !inta_fh) {
3982 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
3986 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
3987 /* Hardware disappeared */
3988 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
3992 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3993 inta, inta_mask, inta_fh);
3995 inta &= ~CSR_INT_BIT_SCD;
3997 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
3998 if (likely(inta || inta_fh))
3999 tasklet_schedule(&priv->irq_tasklet);
4001 spin_unlock(&priv->lock);
4006 /* re-enable interrupts here since we don't have anything to service. */
4007 /* only Re-enable if disabled by irq */
4008 if (test_bit(STATUS_INT_ENABLED, &priv->status))
4009 iwl3945_enable_interrupts(priv);
4010 spin_unlock(&priv->lock);
4014 /************************** EEPROM BANDS ****************************
4016 * The iwl3945_eeprom_band definitions below provide the mapping from the
4017 * EEPROM contents to the specific channel number supported for each
4020 * For example, iwl3945_priv->eeprom39.band_3_channels[4] from the band_3
4021 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4022 * The specific geography and calibration information for that channel
4023 * is contained in the eeprom map itself.
4025 * During init, we copy the eeprom information and channel map
4026 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4028 * channel_map_24/52 provides the index in the channel_info array for a
4029 * given channel. We have to have two separate maps as there is channel
4030 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4033 * A value of 0xff stored in the channel_map indicates that the channel
4034 * is not supported by the hardware at all.
4036 * A value of 0xfe in the channel_map indicates that the channel is not
4037 * valid for Tx with the current hardware. This means that
4038 * while the system can tune and receive on a given channel, it may not
4039 * be able to associate or transmit any frames on that
4040 * channel. There is no corresponding channel information for that
4043 *********************************************************************/
4046 static const u8 iwl3945_eeprom_band_1[14] = {
4047 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4051 static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */
4052 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4055 static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */
4056 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4059 static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */
4060 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4063 static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */
4064 145, 149, 153, 157, 161, 165
4067 static void iwl3945_init_band_reference(const struct iwl_priv *priv, int band,
4068 int *eeprom_ch_count,
4069 const struct iwl_eeprom_channel
4071 const u8 **eeprom_ch_index)
4074 case 1: /* 2.4GHz band */
4075 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1);
4076 *eeprom_ch_info = priv->eeprom39.band_1_channels;
4077 *eeprom_ch_index = iwl3945_eeprom_band_1;
4079 case 2: /* 4.9GHz band */
4080 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2);
4081 *eeprom_ch_info = priv->eeprom39.band_2_channels;
4082 *eeprom_ch_index = iwl3945_eeprom_band_2;
4084 case 3: /* 5.2GHz band */
4085 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3);
4086 *eeprom_ch_info = priv->eeprom39.band_3_channels;
4087 *eeprom_ch_index = iwl3945_eeprom_band_3;
4089 case 4: /* 5.5GHz band */
4090 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4);
4091 *eeprom_ch_info = priv->eeprom39.band_4_channels;
4092 *eeprom_ch_index = iwl3945_eeprom_band_4;
4094 case 5: /* 5.7GHz band */
4095 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5);
4096 *eeprom_ch_info = priv->eeprom39.band_5_channels;
4097 *eeprom_ch_index = iwl3945_eeprom_band_5;
4106 * iwl3945_get_channel_info - Find driver's private channel info
4108 * Based on band and channel number.
4110 const struct iwl_channel_info *
4111 iwl3945_get_channel_info(const struct iwl_priv *priv,
4112 enum ieee80211_band band, u16 channel)
4117 case IEEE80211_BAND_5GHZ:
4118 for (i = 14; i < priv->channel_count; i++) {
4119 if (priv->channel_info[i].channel == channel)
4120 return &priv->channel_info[i];
4124 case IEEE80211_BAND_2GHZ:
4125 if (channel >= 1 && channel <= 14)
4126 return &priv->channel_info[channel - 1];
4128 case IEEE80211_NUM_BANDS:
4135 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4139 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4141 static int iwl3945_init_channel_map(struct iwl_priv *priv)
4143 int eeprom_ch_count = 0;
4144 const u8 *eeprom_ch_index = NULL;
4145 const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
4147 struct iwl_channel_info *ch_info;
4149 if (priv->channel_count) {
4150 IWL_DEBUG_INFO("Channel map already initialized.\n");
4154 if (priv->eeprom39.version < 0x2f) {
4155 IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
4156 priv->eeprom39.version);
4160 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4162 priv->channel_count =
4163 ARRAY_SIZE(iwl3945_eeprom_band_1) +
4164 ARRAY_SIZE(iwl3945_eeprom_band_2) +
4165 ARRAY_SIZE(iwl3945_eeprom_band_3) +
4166 ARRAY_SIZE(iwl3945_eeprom_band_4) +
4167 ARRAY_SIZE(iwl3945_eeprom_band_5);
4169 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
4171 priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
4172 priv->channel_count, GFP_KERNEL);
4173 if (!priv->channel_info) {
4174 IWL_ERR(priv, "Could not allocate channel_info\n");
4175 priv->channel_count = 0;
4179 ch_info = priv->channel_info;
4181 /* Loop through the 5 EEPROM bands adding them in order to the
4182 * channel map we maintain (that contains additional information than
4183 * what just in the EEPROM) */
4184 for (band = 1; band <= 5; band++) {
4186 iwl3945_init_band_reference(priv, band, &eeprom_ch_count,
4187 &eeprom_ch_info, &eeprom_ch_index);
4189 /* Loop through each band adding each of the channels */
4190 for (ch = 0; ch < eeprom_ch_count; ch++) {
4191 ch_info->channel = eeprom_ch_index[ch];
4192 ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
4193 IEEE80211_BAND_5GHZ;
4195 /* permanently store EEPROM's channel regulatory flags
4196 * and max power in channel info database. */
4197 ch_info->eeprom = eeprom_ch_info[ch];
4199 /* Copy the run-time flags so they are there even on
4200 * invalid channels */
4201 ch_info->flags = eeprom_ch_info[ch].flags;
4203 if (!(is_channel_valid(ch_info))) {
4204 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4208 is_channel_a_band(ch_info) ?
4214 /* Initialize regulatory-based run-time data */
4215 ch_info->max_power_avg = ch_info->curr_txpow =
4216 eeprom_ch_info[ch].max_power_avg;
4217 ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
4218 ch_info->min_power = 0;
4220 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4221 " %ddBm): Ad-Hoc %ssupported\n",
4223 is_channel_a_band(ch_info) ?
4225 CHECK_AND_PRINT(VALID),
4226 CHECK_AND_PRINT(IBSS),
4227 CHECK_AND_PRINT(ACTIVE),
4228 CHECK_AND_PRINT(RADAR),
4229 CHECK_AND_PRINT(WIDE),
4230 CHECK_AND_PRINT(DFS),
4231 eeprom_ch_info[ch].flags,
4232 eeprom_ch_info[ch].max_power_avg,
4233 ((eeprom_ch_info[ch].
4234 flags & EEPROM_CHANNEL_IBSS)
4235 && !(eeprom_ch_info[ch].
4236 flags & EEPROM_CHANNEL_RADAR))
4239 /* Set the user_txpower_limit to the highest power
4240 * supported by any channel */
4241 if (eeprom_ch_info[ch].max_power_avg >
4242 priv->user_txpower_limit)
4243 priv->user_txpower_limit =
4244 eeprom_ch_info[ch].max_power_avg;
4250 /* Set up txpower settings in driver for all channels */
4251 if (iwl3945_txpower_set_from_eeprom(priv))
4258 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4260 static void iwl3945_free_channel_map(struct iwl_priv *priv)
4262 kfree(priv->channel_info);
4263 priv->channel_count = 0;
4266 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4267 * sending probe req. This should be set long enough to hear probe responses
4268 * from more than one AP. */
4269 #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
4270 #define IWL_ACTIVE_DWELL_TIME_52 (20)
4272 #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
4273 #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
4275 /* For faster active scanning, scan will move to the next channel if fewer than
4276 * PLCP_QUIET_THRESH packets are heard on this channel within
4277 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4278 * time if it's a quiet channel (nothing responded to our probe, and there's
4279 * no other traffic).
4280 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4281 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4282 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
4284 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4285 * Must be set longer than active dwell time.
4286 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4287 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4288 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4289 #define IWL_PASSIVE_DWELL_BASE (100)
4290 #define IWL_CHANNEL_TUNE_TIME 5
4292 #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1)))
4294 static inline u16 iwl3945_get_active_dwell_time(struct iwl_priv *priv,
4295 enum ieee80211_band band,
4298 if (band == IEEE80211_BAND_5GHZ)
4299 return IWL_ACTIVE_DWELL_TIME_52 +
4300 IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
4302 return IWL_ACTIVE_DWELL_TIME_24 +
4303 IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
4306 static u16 iwl3945_get_passive_dwell_time(struct iwl_priv *priv,
4307 enum ieee80211_band band)
4309 u16 passive = (band == IEEE80211_BAND_2GHZ) ?
4310 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
4311 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
4313 if (iwl3945_is_associated(priv)) {
4314 /* If we're associated, we clamp the maximum passive
4315 * dwell time to be 98% of the beacon interval (minus
4316 * 2 * channel tune time) */
4317 passive = priv->beacon_int;
4318 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
4319 passive = IWL_PASSIVE_DWELL_BASE;
4320 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
4326 static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
4327 enum ieee80211_band band,
4328 u8 is_active, u8 n_probes,
4329 struct iwl3945_scan_channel *scan_ch)
4331 const struct ieee80211_channel *channels = NULL;
4332 const struct ieee80211_supported_band *sband;
4333 const struct iwl_channel_info *ch_info;
4334 u16 passive_dwell = 0;
4335 u16 active_dwell = 0;
4338 sband = iwl_get_hw_mode(priv, band);
4342 channels = sband->channels;
4344 active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes);
4345 passive_dwell = iwl3945_get_passive_dwell_time(priv, band);
4347 if (passive_dwell <= active_dwell)
4348 passive_dwell = active_dwell + 1;
4350 for (i = 0, added = 0; i < sband->n_channels; i++) {
4351 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
4354 scan_ch->channel = channels[i].hw_value;
4356 ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel);
4357 if (!is_channel_valid(ch_info)) {
4358 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4363 scan_ch->active_dwell = cpu_to_le16(active_dwell);
4364 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
4365 /* If passive , set up for auto-switch
4366 * and use long active_dwell time.
4368 if (!is_active || is_channel_passive(ch_info) ||
4369 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
4370 scan_ch->type = 0; /* passive */
4371 if (IWL_UCODE_API(priv->ucode_ver) == 1)
4372 scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
4374 scan_ch->type = 1; /* active */
4377 /* Set direct probe bits. These may be used both for active
4378 * scan channels (probes gets sent right away),
4379 * or for passive channels (probes get se sent only after
4380 * hearing clear Rx packet).*/
4381 if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
4383 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4385 /* uCode v1 does not allow setting direct probe bits on
4386 * passive channel. */
4387 if ((scan_ch->type & 1) && n_probes)
4388 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4391 /* Set txpower levels to defaults */
4392 scan_ch->tpc.dsp_atten = 110;
4393 /* scan_pwr_info->tpc.dsp_atten; */
4395 /*scan_pwr_info->tpc.tx_gain; */
4396 if (band == IEEE80211_BAND_5GHZ)
4397 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
4399 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
4400 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4402 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4406 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4408 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
4409 (scan_ch->type & 1) ?
4410 active_dwell : passive_dwell);
4416 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
4420 static void iwl3945_init_hw_rates(struct iwl_priv *priv,
4421 struct ieee80211_rate *rates)
4425 for (i = 0; i < IWL_RATE_COUNT; i++) {
4426 rates[i].bitrate = iwl3945_rates[i].ieee * 5;
4427 rates[i].hw_value = i; /* Rate scaling will work on indexes */
4428 rates[i].hw_value_short = i;
4430 if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
4432 * If CCK != 1M then set short preamble rate flag.
4434 rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
4435 0 : IEEE80211_RATE_SHORT_PREAMBLE;
4441 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4443 static int iwl3945_init_geos(struct iwl_priv *priv)
4445 struct iwl_channel_info *ch;
4446 struct ieee80211_supported_band *sband;
4447 struct ieee80211_channel *channels;
4448 struct ieee80211_channel *geo_ch;
4449 struct ieee80211_rate *rates;
4452 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
4453 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
4454 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4455 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4459 channels = kzalloc(sizeof(struct ieee80211_channel) *
4460 priv->channel_count, GFP_KERNEL);
4464 rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
4471 /* 5.2GHz channels start after the 2.4GHz channels */
4472 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4473 sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)];
4475 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
4476 sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
4478 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4479 sband->channels = channels;
4481 sband->bitrates = rates;
4482 sband->n_bitrates = IWL_RATE_COUNT;
4484 priv->ieee_channels = channels;
4485 priv->ieee_rates = rates;
4487 iwl3945_init_hw_rates(priv, rates);
4489 for (i = 0; i < priv->channel_count; i++) {
4490 ch = &priv->channel_info[i];
4492 /* FIXME: might be removed if scan is OK*/
4493 if (!is_channel_valid(ch))
4496 if (is_channel_a_band(ch))
4497 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4499 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4501 geo_ch = &sband->channels[sband->n_channels++];
4503 geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel);
4504 geo_ch->max_power = ch->max_power_avg;
4505 geo_ch->max_antenna_gain = 0xff;
4506 geo_ch->hw_value = ch->channel;
4508 if (is_channel_valid(ch)) {
4509 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
4510 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
4512 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
4513 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
4515 if (ch->flags & EEPROM_CHANNEL_RADAR)
4516 geo_ch->flags |= IEEE80211_CHAN_RADAR;
4518 if (ch->max_power_avg > priv->max_channel_txpower_limit)
4519 priv->max_channel_txpower_limit =
4522 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
4525 /* Save flags for reg domain usage */
4526 geo_ch->orig_flags = geo_ch->flags;
4528 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4529 ch->channel, geo_ch->center_freq,
4530 is_channel_a_band(ch) ? "5.2" : "2.4",
4531 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
4532 "restricted" : "valid",
4536 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
4537 priv->cfg->sku & IWL_SKU_A) {
4538 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
4539 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
4540 priv->pci_dev->device, priv->pci_dev->subsystem_device);
4541 priv->cfg->sku &= ~IWL_SKU_A;
4544 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4545 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
4546 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
4548 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
4549 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4550 &priv->bands[IEEE80211_BAND_2GHZ];
4551 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
4552 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4553 &priv->bands[IEEE80211_BAND_5GHZ];
4555 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4561 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
4563 static void iwl3945_free_geos(struct iwl_priv *priv)
4565 kfree(priv->ieee_channels);
4566 kfree(priv->ieee_rates);
4567 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
4570 /******************************************************************************
4572 * uCode download functions
4574 ******************************************************************************/
4576 static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
4578 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
4579 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
4580 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4581 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
4582 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4583 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
4587 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
4588 * looking at all data.
4590 static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
4597 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4599 rc = iwl_grab_nic_access(priv);
4603 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4604 IWL39_RTC_INST_LOWER_BOUND);
4607 for (; len > 0; len -= sizeof(u32), image++) {
4608 /* read data comes through single port, auto-incr addr */
4609 /* NOTE: Use the debugless read so we don't flood kernel log
4610 * if IWL_DL_IO is set */
4611 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4612 if (val != le32_to_cpu(*image)) {
4613 IWL_ERR(priv, "uCode INST section is invalid at "
4614 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4615 save_len - len, val, le32_to_cpu(*image));
4623 iwl_release_nic_access(priv);
4626 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
4633 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
4634 * using sample data 100 bytes apart. If these sample points are good,
4635 * it's a pretty good bet that everything between them is good, too.
4637 static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
4644 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4646 rc = iwl_grab_nic_access(priv);
4650 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
4651 /* read data comes through single port, auto-incr addr */
4652 /* NOTE: Use the debugless read so we don't flood kernel log
4653 * if IWL_DL_IO is set */
4654 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4655 i + IWL39_RTC_INST_LOWER_BOUND);
4656 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4657 if (val != le32_to_cpu(*image)) {
4658 #if 0 /* Enable this if you want to see details */
4659 IWL_ERR(priv, "uCode INST section is invalid at "
4660 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4670 iwl_release_nic_access(priv);
4677 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
4678 * and verify its contents
4680 static int iwl3945_verify_ucode(struct iwl_priv *priv)
4687 image = (__le32 *)priv->ucode_boot.v_addr;
4688 len = priv->ucode_boot.len;
4689 rc = iwl3945_verify_inst_sparse(priv, image, len);
4691 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
4695 /* Try initialize */
4696 image = (__le32 *)priv->ucode_init.v_addr;
4697 len = priv->ucode_init.len;
4698 rc = iwl3945_verify_inst_sparse(priv, image, len);
4700 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
4704 /* Try runtime/protocol */
4705 image = (__le32 *)priv->ucode_code.v_addr;
4706 len = priv->ucode_code.len;
4707 rc = iwl3945_verify_inst_sparse(priv, image, len);
4709 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
4713 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
4715 /* Since nothing seems to match, show first several data entries in
4716 * instruction SRAM, so maybe visual inspection will give a clue.
4717 * Selection of bootstrap image (vs. other images) is arbitrary. */
4718 image = (__le32 *)priv->ucode_boot.v_addr;
4719 len = priv->ucode_boot.len;
4720 rc = iwl3945_verify_inst_full(priv, image, len);
4725 static void iwl3945_nic_start(struct iwl_priv *priv)
4727 /* Remove all resets to allow NIC to operate */
4728 iwl_write32(priv, CSR_RESET, 0);
4732 * iwl3945_read_ucode - Read uCode images from disk file.
4734 * Copy into buffers for card to fetch via bus-mastering
4736 static int iwl3945_read_ucode(struct iwl_priv *priv)
4738 struct iwl_ucode *ucode;
4739 int ret = -EINVAL, index;
4740 const struct firmware *ucode_raw;
4741 /* firmware file name contains uCode/driver compatibility version */
4742 const char *name_pre = priv->cfg->fw_name_pre;
4743 const unsigned int api_max = priv->cfg->ucode_api_max;
4744 const unsigned int api_min = priv->cfg->ucode_api_min;
4748 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
4750 /* Ask kernel firmware_class module to get the boot firmware off disk.
4751 * request_firmware() is synchronous, file is in memory on return. */
4752 for (index = api_max; index >= api_min; index--) {
4753 sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
4754 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
4756 IWL_ERR(priv, "%s firmware file req failed: %d\n",
4763 if (index < api_max)
4764 IWL_ERR(priv, "Loaded firmware %s, "
4765 "which is deprecated. "
4766 " Please use API v%u instead.\n",
4768 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
4769 buf, ucode_raw->size);
4777 /* Make sure that we got at least our header! */
4778 if (ucode_raw->size < sizeof(*ucode)) {
4779 IWL_ERR(priv, "File size way too small!\n");
4784 /* Data from ucode file: header followed by uCode images */
4785 ucode = (void *)ucode_raw->data;
4787 priv->ucode_ver = le32_to_cpu(ucode->ver);
4788 api_ver = IWL_UCODE_API(priv->ucode_ver);
4789 inst_size = le32_to_cpu(ucode->inst_size);
4790 data_size = le32_to_cpu(ucode->data_size);
4791 init_size = le32_to_cpu(ucode->init_size);
4792 init_data_size = le32_to_cpu(ucode->init_data_size);
4793 boot_size = le32_to_cpu(ucode->boot_size);
4795 /* api_ver should match the api version forming part of the
4796 * firmware filename ... but we don't check for that and only rely
4797 * on the API version read from firware header from here on forward */
4799 if (api_ver < api_min || api_ver > api_max) {
4800 IWL_ERR(priv, "Driver unable to support your firmware API. "
4801 "Driver supports v%u, firmware is v%u.\n",
4803 priv->ucode_ver = 0;
4807 if (api_ver != api_max)
4808 IWL_ERR(priv, "Firmware has old API version. Expected %u, "
4809 "got %u. New firmware can be obtained "
4810 "from http://www.intellinuxwireless.org.\n",
4813 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
4814 IWL_UCODE_MAJOR(priv->ucode_ver),
4815 IWL_UCODE_MINOR(priv->ucode_ver),
4816 IWL_UCODE_API(priv->ucode_ver),
4817 IWL_UCODE_SERIAL(priv->ucode_ver));
4819 IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
4821 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
4822 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size);
4823 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size);
4824 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size);
4825 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size);
4828 /* Verify size of file vs. image size info in file's header */
4829 if (ucode_raw->size < sizeof(*ucode) +
4830 inst_size + data_size + init_size +
4831 init_data_size + boot_size) {
4833 IWL_DEBUG_INFO("uCode file size %d too small\n",
4834 (int)ucode_raw->size);
4839 /* Verify that uCode images will fit in card's SRAM */
4840 if (inst_size > IWL39_MAX_INST_SIZE) {
4841 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
4847 if (data_size > IWL39_MAX_DATA_SIZE) {
4848 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
4853 if (init_size > IWL39_MAX_INST_SIZE) {
4854 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
4859 if (init_data_size > IWL39_MAX_DATA_SIZE) {
4860 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
4865 if (boot_size > IWL39_MAX_BSM_SIZE) {
4866 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
4872 /* Allocate ucode buffers for card's bus-master loading ... */
4874 /* Runtime instructions and 2 copies of data:
4875 * 1) unmodified from disk
4876 * 2) backup cache for save/restore during power-downs */
4877 priv->ucode_code.len = inst_size;
4878 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
4880 priv->ucode_data.len = data_size;
4881 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
4883 priv->ucode_data_backup.len = data_size;
4884 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4886 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
4887 !priv->ucode_data_backup.v_addr)
4890 /* Initialization instructions and data */
4891 if (init_size && init_data_size) {
4892 priv->ucode_init.len = init_size;
4893 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
4895 priv->ucode_init_data.len = init_data_size;
4896 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4898 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
4902 /* Bootstrap (instructions only, no data) */
4904 priv->ucode_boot.len = boot_size;
4905 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
4907 if (!priv->ucode_boot.v_addr)
4911 /* Copy images into buffers for card's bus-master reads ... */
4913 /* Runtime instructions (first block of data in file) */
4914 src = &ucode->data[0];
4915 len = priv->ucode_code.len;
4916 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
4917 memcpy(priv->ucode_code.v_addr, src, len);
4918 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
4919 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
4921 /* Runtime data (2nd block)
4922 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
4923 src = &ucode->data[inst_size];
4924 len = priv->ucode_data.len;
4925 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
4926 memcpy(priv->ucode_data.v_addr, src, len);
4927 memcpy(priv->ucode_data_backup.v_addr, src, len);
4929 /* Initialization instructions (3rd block) */
4931 src = &ucode->data[inst_size + data_size];
4932 len = priv->ucode_init.len;
4933 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
4935 memcpy(priv->ucode_init.v_addr, src, len);
4938 /* Initialization data (4th block) */
4939 if (init_data_size) {
4940 src = &ucode->data[inst_size + data_size + init_size];
4941 len = priv->ucode_init_data.len;
4942 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
4944 memcpy(priv->ucode_init_data.v_addr, src, len);
4947 /* Bootstrap instructions (5th block) */
4948 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
4949 len = priv->ucode_boot.len;
4950 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
4952 memcpy(priv->ucode_boot.v_addr, src, len);
4954 /* We have our copies now, allow OS release its copies */
4955 release_firmware(ucode_raw);
4959 IWL_ERR(priv, "failed to allocate pci memory\n");
4961 iwl3945_dealloc_ucode_pci(priv);
4964 release_firmware(ucode_raw);
4972 * iwl3945_set_ucode_ptrs - Set uCode address location
4974 * Tell initialization uCode where to find runtime uCode.
4976 * BSM registers initially contain pointers to initialization uCode.
4977 * We need to replace them to load runtime uCode inst and data,
4978 * and to save runtime data when powering down.
4980 static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
4985 unsigned long flags;
4987 /* bits 31:0 for 3945 */
4988 pinst = priv->ucode_code.p_addr;
4989 pdata = priv->ucode_data_backup.p_addr;
4991 spin_lock_irqsave(&priv->lock, flags);
4992 rc = iwl_grab_nic_access(priv);
4994 spin_unlock_irqrestore(&priv->lock, flags);
4998 /* Tell bootstrap uCode where to find image to load */
4999 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
5000 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
5001 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
5002 priv->ucode_data.len);
5004 /* Inst byte count must be last to set up, bit 31 signals uCode
5005 * that all new ptr/size info is in place */
5006 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
5007 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
5009 iwl_release_nic_access(priv);
5011 spin_unlock_irqrestore(&priv->lock, flags);
5013 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5019 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5021 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5023 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5025 static void iwl3945_init_alive_start(struct iwl_priv *priv)
5027 /* Check alive response for "valid" sign from uCode */
5028 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
5029 /* We had an error bringing up the hardware, so take it
5030 * all the way back down so we can try again */
5031 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5035 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5036 * This is a paranoid check, because we would not have gotten the
5037 * "initialize" alive if code weren't properly loaded. */
5038 if (iwl3945_verify_ucode(priv)) {
5039 /* Runtime instruction load was bad;
5040 * take it all the way back down so we can try again */
5041 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5045 /* Send pointers to protocol/runtime uCode image ... init code will
5046 * load and launch runtime uCode, which will send us another "Alive"
5048 IWL_DEBUG_INFO("Initialization Alive received.\n");
5049 if (iwl3945_set_ucode_ptrs(priv)) {
5050 /* Runtime instruction load won't happen;
5051 * take it all the way back down so we can try again */
5052 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5058 queue_work(priv->workqueue, &priv->restart);
5063 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw,
5064 struct sk_buff *skb);
5067 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5068 * from protocol/runtime uCode (initialization uCode's
5069 * Alive gets handled by iwl3945_init_alive_start()).
5071 static void iwl3945_alive_start(struct iwl_priv *priv)
5074 int thermal_spin = 0;
5077 IWL_DEBUG_INFO("Runtime Alive received.\n");
5079 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
5080 /* We had an error bringing up the hardware, so take it
5081 * all the way back down so we can try again */
5082 IWL_DEBUG_INFO("Alive failed.\n");
5086 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5087 * This is a paranoid check, because we would not have gotten the
5088 * "runtime" alive if code weren't properly loaded. */
5089 if (iwl3945_verify_ucode(priv)) {
5090 /* Runtime instruction load was bad;
5091 * take it all the way back down so we can try again */
5092 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5096 iwl3945_clear_stations_table(priv);
5098 rc = iwl_grab_nic_access(priv);
5100 IWL_WARN(priv, "Can not read RFKILL status from adapter\n");
5104 rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
5105 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
5106 iwl_release_nic_access(priv);
5109 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5110 /* if RFKILL is not on, then wait for thermal
5111 * sensor in adapter to kick in */
5112 while (iwl3945_hw_get_temperature(priv) == 0) {
5118 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5121 set_bit(STATUS_RF_KILL_HW, &priv->status);
5123 /* After the ALIVE response, we can send commands to 3945 uCode */
5124 set_bit(STATUS_ALIVE, &priv->status);
5126 /* Clear out the uCode error bit if it is set */
5127 clear_bit(STATUS_FW_ERROR, &priv->status);
5129 if (iwl_is_rfkill(priv))
5132 ieee80211_wake_queues(priv->hw);
5134 priv->active_rate = priv->rates_mask;
5135 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
5137 iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
5139 if (iwl3945_is_associated(priv)) {
5140 struct iwl3945_rxon_cmd *active_rxon =
5141 (struct iwl3945_rxon_cmd *)(&priv->active39_rxon);
5143 memcpy(&priv->staging39_rxon, &priv->active39_rxon,
5144 sizeof(priv->staging39_rxon));
5145 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5147 /* Initialize our rx_config data */
5148 iwl3945_connection_init_rx_config(priv, priv->iw_mode);
5149 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
5152 /* Configure Bluetooth device coexistence support */
5153 iwl3945_send_bt_config(priv);
5155 /* Configure the adapter for unassociated operation */
5156 iwl3945_commit_rxon(priv);
5158 iwl3945_reg_txpower_periodic(priv);
5160 iwl3945_led_register(priv);
5162 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5163 set_bit(STATUS_READY, &priv->status);
5164 wake_up_interruptible(&priv->wait_command_queue);
5166 if (priv->error_recovering)
5167 iwl3945_error_recovery(priv);
5169 /* reassociate for ADHOC mode */
5170 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
5171 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
5174 iwl3945_mac_beacon_update(priv->hw, beacon);
5180 queue_work(priv->workqueue, &priv->restart);
5183 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
5185 static void __iwl3945_down(struct iwl_priv *priv)
5187 unsigned long flags;
5188 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
5189 struct ieee80211_conf *conf = NULL;
5191 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
5193 conf = ieee80211_get_hw_conf(priv->hw);
5196 set_bit(STATUS_EXIT_PENDING, &priv->status);
5198 iwl3945_led_unregister(priv);
5199 iwl3945_clear_stations_table(priv);
5201 /* Unblock any waiting calls */
5202 wake_up_interruptible_all(&priv->wait_command_queue);
5204 /* Wipe out the EXIT_PENDING status bit if we are not actually
5205 * exiting the module */
5207 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5209 /* stop and reset the on-board processor */
5210 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
5212 /* tell the device to stop sending interrupts */
5213 spin_lock_irqsave(&priv->lock, flags);
5214 iwl3945_disable_interrupts(priv);
5215 spin_unlock_irqrestore(&priv->lock, flags);
5216 iwl_synchronize_irq(priv);
5218 if (priv->mac80211_registered)
5219 ieee80211_stop_queues(priv->hw);
5221 /* If we have not previously called iwl3945_init() then
5222 * clear all bits but the RF Kill and SUSPEND bits and return */
5223 if (!iwl_is_init(priv)) {
5224 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
5226 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
5228 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
5229 STATUS_GEO_CONFIGURED |
5230 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
5232 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
5233 STATUS_EXIT_PENDING;
5237 /* ...otherwise clear out all the status bits but the RF Kill and
5238 * SUSPEND bits and continue taking the NIC down. */
5239 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
5241 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
5243 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
5244 STATUS_GEO_CONFIGURED |
5245 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
5247 test_bit(STATUS_FW_ERROR, &priv->status) <<
5249 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
5250 STATUS_EXIT_PENDING;
5252 spin_lock_irqsave(&priv->lock, flags);
5253 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
5254 spin_unlock_irqrestore(&priv->lock, flags);
5256 iwl3945_hw_txq_ctx_stop(priv);
5257 iwl3945_hw_rxq_stop(priv);
5259 spin_lock_irqsave(&priv->lock, flags);
5260 if (!iwl_grab_nic_access(priv)) {
5261 iwl_write_prph(priv, APMG_CLK_DIS_REG,
5262 APMG_CLK_VAL_DMA_CLK_RQT);
5263 iwl_release_nic_access(priv);
5265 spin_unlock_irqrestore(&priv->lock, flags);
5269 priv->cfg->ops->lib->apm_ops.reset(priv);
5271 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
5273 if (priv->ibss_beacon)
5274 dev_kfree_skb(priv->ibss_beacon);
5275 priv->ibss_beacon = NULL;
5277 /* clear out any free frames */
5278 iwl3945_clear_free_frames(priv);
5281 static void iwl3945_down(struct iwl_priv *priv)
5283 mutex_lock(&priv->mutex);
5284 __iwl3945_down(priv);
5285 mutex_unlock(&priv->mutex);
5287 iwl3945_cancel_deferred_work(priv);
5290 #define MAX_HW_RESTARTS 5
5292 static int __iwl3945_up(struct iwl_priv *priv)
5296 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5297 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
5301 if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
5302 IWL_WARN(priv, "Radio disabled by SW RF kill (module "
5307 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
5308 IWL_ERR(priv, "ucode not available for device bring up\n");
5312 /* If platform's RF_KILL switch is NOT set to KILL */
5313 if (iwl_read32(priv, CSR_GP_CNTRL) &
5314 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
5315 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5317 set_bit(STATUS_RF_KILL_HW, &priv->status);
5318 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
5319 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
5324 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5326 rc = iwl3945_hw_nic_init(priv);
5328 IWL_ERR(priv, "Unable to int nic\n");
5332 /* make sure rfkill handshake bits are cleared */
5333 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5334 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
5335 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
5337 /* clear (again), then enable host interrupts */
5338 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5339 iwl3945_enable_interrupts(priv);
5341 /* really make sure rfkill handshake bits are cleared */
5342 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5343 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5345 /* Copy original ucode data image from disk into backup cache.
5346 * This will be used to initialize the on-board processor's
5347 * data SRAM for a clean start when the runtime program first loads. */
5348 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
5349 priv->ucode_data.len);
5351 /* We return success when we resume from suspend and rf_kill is on. */
5352 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
5355 for (i = 0; i < MAX_HW_RESTARTS; i++) {
5357 iwl3945_clear_stations_table(priv);
5359 /* load bootstrap state machine,
5360 * load bootstrap program into processor's memory,
5361 * prepare to load the "initialize" uCode */
5362 priv->cfg->ops->lib->load_ucode(priv);
5366 "Unable to set up bootstrap uCode: %d\n", rc);
5370 /* start card; "initialize" will load runtime ucode */
5371 iwl3945_nic_start(priv);
5373 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
5378 set_bit(STATUS_EXIT_PENDING, &priv->status);
5379 __iwl3945_down(priv);
5380 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5382 /* tried to restart and config the device for as long as our
5383 * patience could withstand */
5384 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
5389 /*****************************************************************************
5391 * Workqueue callbacks
5393 *****************************************************************************/
5395 static void iwl3945_bg_init_alive_start(struct work_struct *data)
5397 struct iwl_priv *priv =
5398 container_of(data, struct iwl_priv, init_alive_start.work);
5400 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5403 mutex_lock(&priv->mutex);
5404 iwl3945_init_alive_start(priv);
5405 mutex_unlock(&priv->mutex);
5408 static void iwl3945_bg_alive_start(struct work_struct *data)
5410 struct iwl_priv *priv =
5411 container_of(data, struct iwl_priv, alive_start.work);
5413 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5416 mutex_lock(&priv->mutex);
5417 iwl3945_alive_start(priv);
5418 mutex_unlock(&priv->mutex);
5421 static void iwl3945_bg_rf_kill(struct work_struct *work)
5423 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
5425 wake_up_interruptible(&priv->wait_command_queue);
5427 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5430 mutex_lock(&priv->mutex);
5432 if (!iwl_is_rfkill(priv)) {
5433 IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
5434 "HW and/or SW RF Kill no longer active, restarting "
5436 if (!test_bit(STATUS_EXIT_PENDING, &priv->status) &&
5437 test_bit(STATUS_ALIVE, &priv->status))
5438 queue_work(priv->workqueue, &priv->restart);
5441 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
5442 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5443 "disabled by SW switch\n");
5445 IWL_WARN(priv, "Radio Frequency Kill Switch is On:\n"
5446 "Kill switch must be turned off for "
5447 "wireless networking to work.\n");
5450 mutex_unlock(&priv->mutex);
5451 iwl3945_rfkill_set_hw_state(priv);
5454 static void iwl3945_rfkill_poll(struct work_struct *data)
5456 struct iwl_priv *priv =
5457 container_of(data, struct iwl_priv, rfkill_poll.work);
5458 unsigned long status = priv->status;
5460 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
5461 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5463 set_bit(STATUS_RF_KILL_HW, &priv->status);
5465 if (test_bit(STATUS_RF_KILL_HW, &status) != test_bit(STATUS_RF_KILL_HW, &priv->status))
5466 queue_work(priv->workqueue, &priv->rf_kill);
5468 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
5469 round_jiffies_relative(2 * HZ));
5473 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5475 static void iwl3945_bg_scan_check(struct work_struct *data)
5477 struct iwl_priv *priv =
5478 container_of(data, struct iwl_priv, scan_check.work);
5480 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5483 mutex_lock(&priv->mutex);
5484 if (test_bit(STATUS_SCANNING, &priv->status) ||
5485 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5486 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
5487 "Scan completion watchdog resetting adapter (%dms)\n",
5488 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
5490 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
5491 iwl3945_send_scan_abort(priv);
5493 mutex_unlock(&priv->mutex);
5496 static void iwl3945_bg_request_scan(struct work_struct *data)
5498 struct iwl_priv *priv =
5499 container_of(data, struct iwl_priv, request_scan);
5500 struct iwl_host_cmd cmd = {
5501 .id = REPLY_SCAN_CMD,
5502 .len = sizeof(struct iwl3945_scan_cmd),
5503 .meta.flags = CMD_SIZE_HUGE,
5506 struct iwl3945_scan_cmd *scan;
5507 struct ieee80211_conf *conf = NULL;
5509 enum ieee80211_band band;
5510 DECLARE_SSID_BUF(ssid);
5512 conf = ieee80211_get_hw_conf(priv->hw);
5514 mutex_lock(&priv->mutex);
5516 if (!iwl_is_ready(priv)) {
5517 IWL_WARN(priv, "request scan called when driver not ready.\n");
5521 /* Make sure the scan wasn't canceled before this queued work
5522 * was given the chance to run... */
5523 if (!test_bit(STATUS_SCANNING, &priv->status))
5526 /* This should never be called or scheduled if there is currently
5527 * a scan active in the hardware. */
5528 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
5529 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5530 "Ignoring second request.\n");
5535 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5536 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5540 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5541 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5545 if (iwl_is_rfkill(priv)) {
5546 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5550 if (!test_bit(STATUS_READY, &priv->status)) {
5551 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5555 if (!priv->scan_bands) {
5556 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5560 if (!priv->scan39) {
5561 priv->scan39 = kmalloc(sizeof(struct iwl3945_scan_cmd) +
5562 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
5563 if (!priv->scan39) {
5568 scan = priv->scan39;
5569 memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
5571 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
5572 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
5574 if (iwl3945_is_associated(priv)) {
5577 u32 suspend_time = 100;
5578 u32 scan_suspend_time = 100;
5579 unsigned long flags;
5581 IWL_DEBUG_INFO("Scanning while associated...\n");
5583 spin_lock_irqsave(&priv->lock, flags);
5584 interval = priv->beacon_int;
5585 spin_unlock_irqrestore(&priv->lock, flags);
5587 scan->suspend_time = 0;
5588 scan->max_out_time = cpu_to_le32(200 * 1024);
5590 interval = suspend_time;
5592 * suspend time format:
5593 * 0-19: beacon interval in usec (time before exec.)
5595 * 24-31: number of beacons (suspend between channels)
5598 extra = (suspend_time / interval) << 24;
5599 scan_suspend_time = 0xFF0FFFFF &
5600 (extra | ((suspend_time % interval) * 1024));
5602 scan->suspend_time = cpu_to_le32(scan_suspend_time);
5603 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5604 scan_suspend_time, interval);
5607 /* We should add the ability for user to lock to PASSIVE ONLY */
5608 if (priv->one_direct_scan) {
5610 ("Kicking off one direct scan for '%s'\n",
5611 print_ssid(ssid, priv->direct_ssid,
5612 priv->direct_ssid_len));
5613 scan->direct_scan[0].id = WLAN_EID_SSID;
5614 scan->direct_scan[0].len = priv->direct_ssid_len;
5615 memcpy(scan->direct_scan[0].ssid,
5616 priv->direct_ssid, priv->direct_ssid_len);
5619 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
5621 /* We don't build a direct scan probe request; the uCode will do
5622 * that based on the direct_mask added to each channel entry */
5623 scan->tx_cmd.len = cpu_to_le16(
5624 iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
5625 IWL_MAX_SCAN_SIZE - sizeof(*scan)));
5626 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
5627 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
5628 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
5630 /* flags + rate selection */
5632 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
5633 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
5634 scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
5635 scan->good_CRC_th = 0;
5636 band = IEEE80211_BAND_2GHZ;
5637 } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
5638 scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
5639 scan->good_CRC_th = IWL_GOOD_CRC_TH;
5640 band = IEEE80211_BAND_5GHZ;
5642 IWL_WARN(priv, "Invalid scan band count\n");
5646 /* select Rx antennas */
5647 scan->flags |= iwl3945_get_antenna_flags(priv);
5649 if (priv->iw_mode == NL80211_IFTYPE_MONITOR)
5650 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
5652 scan->channel_count =
5653 iwl3945_get_channels_for_scan(priv, band, 1, /* active */
5655 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
5657 if (scan->channel_count == 0) {
5658 IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
5662 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
5663 scan->channel_count * sizeof(struct iwl3945_scan_channel);
5665 scan->len = cpu_to_le16(cmd.len);
5667 set_bit(STATUS_SCAN_HW, &priv->status);
5668 rc = iwl3945_send_cmd_sync(priv, &cmd);
5672 queue_delayed_work(priv->workqueue, &priv->scan_check,
5673 IWL_SCAN_CHECK_WATCHDOG);
5675 mutex_unlock(&priv->mutex);
5679 /* can not perform scan make sure we clear scanning
5680 * bits from status so next scan request can be performed.
5681 * if we dont clear scanning status bit here all next scan
5684 clear_bit(STATUS_SCAN_HW, &priv->status);
5685 clear_bit(STATUS_SCANNING, &priv->status);
5687 /* inform mac80211 scan aborted */
5688 queue_work(priv->workqueue, &priv->scan_completed);
5689 mutex_unlock(&priv->mutex);
5692 static void iwl3945_bg_up(struct work_struct *data)
5694 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
5696 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5699 mutex_lock(&priv->mutex);
5701 mutex_unlock(&priv->mutex);
5702 iwl3945_rfkill_set_hw_state(priv);
5705 static void iwl3945_bg_restart(struct work_struct *data)
5707 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
5709 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5713 queue_work(priv->workqueue, &priv->up);
5716 static void iwl3945_bg_rx_replenish(struct work_struct *data)
5718 struct iwl_priv *priv =
5719 container_of(data, struct iwl_priv, rx_replenish);
5721 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5724 mutex_lock(&priv->mutex);
5725 iwl3945_rx_replenish(priv);
5726 mutex_unlock(&priv->mutex);
5729 #define IWL_DELAY_NEXT_SCAN (HZ*2)
5731 static void iwl3945_post_associate(struct iwl_priv *priv)
5734 struct ieee80211_conf *conf = NULL;
5736 if (priv->iw_mode == NL80211_IFTYPE_AP) {
5737 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
5742 IWL_DEBUG_ASSOC("Associated as %d to: %pM\n",
5743 priv->assoc_id, priv->active39_rxon.bssid_addr);
5745 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5748 if (!priv->vif || !priv->is_open)
5751 iwl_scan_cancel_timeout(priv, 200);
5753 conf = ieee80211_get_hw_conf(priv->hw);
5755 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5756 iwl3945_commit_rxon(priv);
5758 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
5759 iwl3945_setup_rxon_timing(priv);
5760 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
5761 sizeof(priv->rxon_timing), &priv->rxon_timing);
5763 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
5764 "Attempting to continue.\n");
5766 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
5768 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
5770 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
5771 priv->assoc_id, priv->beacon_int);
5773 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
5774 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
5776 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
5778 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
5779 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
5780 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
5782 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5784 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
5785 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5789 iwl3945_commit_rxon(priv);
5791 switch (priv->iw_mode) {
5792 case NL80211_IFTYPE_STATION:
5793 iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
5796 case NL80211_IFTYPE_ADHOC:
5799 iwl3945_add_station(priv, priv->bssid, 0, 0);
5800 iwl3945_sync_sta(priv, IWL_STA_ID,
5801 (priv->band == IEEE80211_BAND_5GHZ) ?
5802 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
5804 iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
5805 iwl3945_send_beacon_cmd(priv);
5810 IWL_ERR(priv, "%s Should not be called in %d mode\n",
5811 __func__, priv->iw_mode);
5815 iwl3945_activate_qos(priv, 0);
5817 /* we have just associated, don't start scan too early */
5818 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
5821 static void iwl3945_bg_abort_scan(struct work_struct *work)
5823 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
5825 if (!iwl_is_ready(priv))
5828 mutex_lock(&priv->mutex);
5830 set_bit(STATUS_SCAN_ABORTING, &priv->status);
5831 iwl3945_send_scan_abort(priv);
5833 mutex_unlock(&priv->mutex);
5836 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
5838 static void iwl3945_bg_scan_completed(struct work_struct *work)
5840 struct iwl_priv *priv =
5841 container_of(work, struct iwl_priv, scan_completed);
5843 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
5845 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5848 if (test_bit(STATUS_CONF_PENDING, &priv->status))
5849 iwl3945_mac_config(priv->hw, 0);
5851 ieee80211_scan_completed(priv->hw);
5853 /* Since setting the TXPOWER may have been deferred while
5854 * performing the scan, fire one off */
5855 mutex_lock(&priv->mutex);
5856 iwl3945_hw_reg_send_txpower(priv);
5857 mutex_unlock(&priv->mutex);
5860 /*****************************************************************************
5862 * mac80211 entry point functions
5864 *****************************************************************************/
5866 #define UCODE_READY_TIMEOUT (2 * HZ)
5868 static int iwl3945_mac_start(struct ieee80211_hw *hw)
5870 struct iwl_priv *priv = hw->priv;
5873 IWL_DEBUG_MAC80211("enter\n");
5875 /* we should be verifying the device is ready to be opened */
5876 mutex_lock(&priv->mutex);
5878 memset(&priv->staging39_rxon, 0, sizeof(struct iwl3945_rxon_cmd));
5879 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
5880 * ucode filename and max sizes are card-specific. */
5882 if (!priv->ucode_code.len) {
5883 ret = iwl3945_read_ucode(priv);
5885 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
5886 mutex_unlock(&priv->mutex);
5887 goto out_release_irq;
5891 ret = __iwl3945_up(priv);
5893 mutex_unlock(&priv->mutex);
5895 iwl3945_rfkill_set_hw_state(priv);
5898 goto out_release_irq;
5900 IWL_DEBUG_INFO("Start UP work.\n");
5902 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
5905 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
5906 * mac80211 will not be run successfully. */
5907 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
5908 test_bit(STATUS_READY, &priv->status),
5909 UCODE_READY_TIMEOUT);
5911 if (!test_bit(STATUS_READY, &priv->status)) {
5913 "Wait for START_ALIVE timeout after %dms.\n",
5914 jiffies_to_msecs(UCODE_READY_TIMEOUT));
5916 goto out_release_irq;
5920 /* ucode is running and will send rfkill notifications,
5921 * no need to poll the killswitch state anymore */
5922 cancel_delayed_work(&priv->rfkill_poll);
5925 IWL_DEBUG_MAC80211("leave\n");
5930 IWL_DEBUG_MAC80211("leave - failed\n");
5934 static void iwl3945_mac_stop(struct ieee80211_hw *hw)
5936 struct iwl_priv *priv = hw->priv;
5938 IWL_DEBUG_MAC80211("enter\n");
5940 if (!priv->is_open) {
5941 IWL_DEBUG_MAC80211("leave - skip\n");
5947 if (iwl_is_ready_rf(priv)) {
5948 /* stop mac, cancel any scan request and clear
5949 * RXON_FILTER_ASSOC_MSK BIT
5951 mutex_lock(&priv->mutex);
5952 iwl_scan_cancel_timeout(priv, 100);
5953 mutex_unlock(&priv->mutex);
5958 flush_workqueue(priv->workqueue);
5960 /* start polling the killswitch state again */
5961 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
5962 round_jiffies_relative(2 * HZ));
5964 IWL_DEBUG_MAC80211("leave\n");
5967 static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
5969 struct iwl_priv *priv = hw->priv;
5971 IWL_DEBUG_MAC80211("enter\n");
5973 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
5974 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
5976 if (iwl3945_tx_skb(priv, skb))
5977 dev_kfree_skb_any(skb);
5979 IWL_DEBUG_MAC80211("leave\n");
5980 return NETDEV_TX_OK;
5983 static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
5984 struct ieee80211_if_init_conf *conf)
5986 struct iwl_priv *priv = hw->priv;
5987 unsigned long flags;
5989 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
5992 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
5996 spin_lock_irqsave(&priv->lock, flags);
5997 priv->vif = conf->vif;
5998 priv->iw_mode = conf->type;
6000 spin_unlock_irqrestore(&priv->lock, flags);
6002 mutex_lock(&priv->mutex);
6004 if (conf->mac_addr) {
6005 IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr);
6006 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
6009 if (iwl_is_ready(priv))
6010 iwl3945_set_mode(priv, conf->type);
6012 mutex_unlock(&priv->mutex);
6014 IWL_DEBUG_MAC80211("leave\n");
6019 * iwl3945_mac_config - mac80211 config callback
6021 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6022 * be set inappropriately and the driver currently sets the hardware up to
6023 * use it whenever needed.
6025 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed)
6027 struct iwl_priv *priv = hw->priv;
6028 const struct iwl_channel_info *ch_info;
6029 struct ieee80211_conf *conf = &hw->conf;
6030 unsigned long flags;
6033 mutex_lock(&priv->mutex);
6034 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
6036 if (!iwl_is_ready(priv)) {
6037 IWL_DEBUG_MAC80211("leave - not ready\n");
6042 if (unlikely(!iwl3945_mod_params.disable_hw_scan &&
6043 test_bit(STATUS_SCANNING, &priv->status))) {
6044 IWL_DEBUG_MAC80211("leave - scanning\n");
6045 set_bit(STATUS_CONF_PENDING, &priv->status);
6046 mutex_unlock(&priv->mutex);
6050 spin_lock_irqsave(&priv->lock, flags);
6052 ch_info = iwl3945_get_channel_info(priv, conf->channel->band,
6053 conf->channel->hw_value);
6054 if (!is_channel_valid(ch_info)) {
6055 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
6056 conf->channel->hw_value, conf->channel->band);
6057 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6058 spin_unlock_irqrestore(&priv->lock, flags);
6063 iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value);
6065 iwl3945_set_flags_for_phymode(priv, conf->channel->band);
6067 /* The list of supported rates and rate mask can be different
6068 * for each phymode; since the phymode may have changed, reset
6069 * the rate mask to what mac80211 lists */
6070 iwl3945_set_rate(priv);
6072 spin_unlock_irqrestore(&priv->lock, flags);
6074 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6075 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
6076 iwl3945_hw_channel_switch(priv, conf->channel);
6081 iwl3945_radio_kill_sw(priv, !conf->radio_enabled);
6083 if (!conf->radio_enabled) {
6084 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6088 if (iwl_is_rfkill(priv)) {
6089 IWL_DEBUG_MAC80211("leave - RF kill\n");
6094 iwl3945_set_rate(priv);
6096 if (memcmp(&priv->active39_rxon,
6097 &priv->staging39_rxon, sizeof(priv->staging39_rxon)))
6098 iwl3945_commit_rxon(priv);
6100 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6102 IWL_DEBUG_MAC80211("leave\n");
6105 clear_bit(STATUS_CONF_PENDING, &priv->status);
6106 mutex_unlock(&priv->mutex);
6110 static void iwl3945_config_ap(struct iwl_priv *priv)
6114 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
6117 /* The following should be done only at AP bring up */
6118 if (!(iwl3945_is_associated(priv))) {
6120 /* RXON - unassoc (to set timing command) */
6121 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6122 iwl3945_commit_rxon(priv);
6125 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
6126 iwl3945_setup_rxon_timing(priv);
6127 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
6128 sizeof(priv->rxon_timing), &priv->rxon_timing);
6130 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
6131 "Attempting to continue.\n");
6133 /* FIXME: what should be the assoc_id for AP? */
6134 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
6135 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
6136 priv->staging39_rxon.flags |=
6137 RXON_FLG_SHORT_PREAMBLE_MSK;
6139 priv->staging39_rxon.flags &=
6140 ~RXON_FLG_SHORT_PREAMBLE_MSK;
6142 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
6143 if (priv->assoc_capability &
6144 WLAN_CAPABILITY_SHORT_SLOT_TIME)
6145 priv->staging39_rxon.flags |=
6146 RXON_FLG_SHORT_SLOT_MSK;
6148 priv->staging39_rxon.flags &=
6149 ~RXON_FLG_SHORT_SLOT_MSK;
6151 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
6152 priv->staging39_rxon.flags &=
6153 ~RXON_FLG_SHORT_SLOT_MSK;
6155 /* restore RXON assoc */
6156 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
6157 iwl3945_commit_rxon(priv);
6158 iwl3945_add_station(priv, iwl_bcast_addr, 0, 0);
6160 iwl3945_send_beacon_cmd(priv);
6162 /* FIXME - we need to add code here to detect a totally new
6163 * configuration, reset the AP, unassoc, rxon timing, assoc,
6164 * clear sta table, add BCAST sta... */
6167 static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
6168 struct ieee80211_vif *vif,
6169 struct ieee80211_if_conf *conf)
6171 struct iwl_priv *priv = hw->priv;
6177 if (priv->vif != vif) {
6178 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6182 /* handle this temporarily here */
6183 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
6184 conf->changed & IEEE80211_IFCC_BEACON) {
6185 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
6188 mutex_lock(&priv->mutex);
6189 rc = iwl3945_mac_beacon_update(hw, beacon);
6190 mutex_unlock(&priv->mutex);
6195 if (!iwl_is_alive(priv))
6198 mutex_lock(&priv->mutex);
6201 IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid);
6204 * very dubious code was here; the probe filtering flag is never set:
6206 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6207 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6210 if (priv->iw_mode == NL80211_IFTYPE_AP) {
6212 conf->bssid = priv->mac_addr;
6213 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
6214 IWL_DEBUG_MAC80211("bssid was set to: %pM\n",
6217 if (priv->ibss_beacon)
6218 dev_kfree_skb(priv->ibss_beacon);
6220 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
6223 if (iwl_is_rfkill(priv))
6226 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
6227 !is_multicast_ether_addr(conf->bssid)) {
6228 /* If there is currently a HW scan going on in the background
6229 * then we need to cancel it else the RXON below will fail. */
6230 if (iwl_scan_cancel_timeout(priv, 100)) {
6231 IWL_WARN(priv, "Aborted scan still in progress "
6233 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6234 mutex_unlock(&priv->mutex);
6237 memcpy(priv->staging39_rxon.bssid_addr, conf->bssid, ETH_ALEN);
6239 /* TODO: Audit driver for usage of these members and see
6240 * if mac80211 deprecates them (priv->bssid looks like it
6241 * shouldn't be there, but I haven't scanned the IBSS code
6242 * to verify) - jpk */
6243 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
6245 if (priv->iw_mode == NL80211_IFTYPE_AP)
6246 iwl3945_config_ap(priv);
6248 rc = iwl3945_commit_rxon(priv);
6249 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
6250 iwl3945_add_station(priv,
6251 priv->active39_rxon.bssid_addr, 1, 0);
6255 iwl_scan_cancel_timeout(priv, 100);
6256 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6257 iwl3945_commit_rxon(priv);
6261 IWL_DEBUG_MAC80211("leave\n");
6262 mutex_unlock(&priv->mutex);
6267 static void iwl3945_configure_filter(struct ieee80211_hw *hw,
6268 unsigned int changed_flags,
6269 unsigned int *total_flags,
6270 int mc_count, struct dev_addr_list *mc_list)
6272 struct iwl_priv *priv = hw->priv;
6273 __le32 *filter_flags = &priv->staging39_rxon.filter_flags;
6275 IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n",
6276 changed_flags, *total_flags);
6278 if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
6279 if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))
6280 *filter_flags |= RXON_FILTER_PROMISC_MSK;
6282 *filter_flags &= ~RXON_FILTER_PROMISC_MSK;
6284 if (changed_flags & FIF_ALLMULTI) {
6285 if (*total_flags & FIF_ALLMULTI)
6286 *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK;
6288 *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK;
6290 if (changed_flags & FIF_CONTROL) {
6291 if (*total_flags & FIF_CONTROL)
6292 *filter_flags |= RXON_FILTER_CTL2HOST_MSK;
6294 *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK;
6296 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
6297 if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
6298 *filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
6300 *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK;
6303 /* We avoid iwl_commit_rxon here to commit the new filter flags
6304 * since mac80211 will call ieee80211_hw_config immediately.
6305 * (mc_list is not supported at this time). Otherwise, we need to
6306 * queue a background iwl_commit_rxon work.
6309 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
6310 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
6313 static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
6314 struct ieee80211_if_init_conf *conf)
6316 struct iwl_priv *priv = hw->priv;
6318 IWL_DEBUG_MAC80211("enter\n");
6320 mutex_lock(&priv->mutex);
6322 if (iwl_is_ready_rf(priv)) {
6323 iwl_scan_cancel_timeout(priv, 100);
6324 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6325 iwl3945_commit_rxon(priv);
6327 if (priv->vif == conf->vif) {
6329 memset(priv->bssid, 0, ETH_ALEN);
6331 mutex_unlock(&priv->mutex);
6333 IWL_DEBUG_MAC80211("leave\n");
6336 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
6338 static void iwl3945_bss_info_changed(struct ieee80211_hw *hw,
6339 struct ieee80211_vif *vif,
6340 struct ieee80211_bss_conf *bss_conf,
6343 struct iwl_priv *priv = hw->priv;
6345 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
6347 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
6348 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6349 bss_conf->use_short_preamble);
6350 if (bss_conf->use_short_preamble)
6351 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
6353 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
6356 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
6357 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
6358 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
6359 priv->staging39_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
6361 priv->staging39_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
6364 if (changes & BSS_CHANGED_ASSOC) {
6365 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
6366 /* This should never happen as this function should
6367 * never be called from interrupt context. */
6368 if (WARN_ON_ONCE(in_interrupt()))
6370 if (bss_conf->assoc) {
6371 priv->assoc_id = bss_conf->aid;
6372 priv->beacon_int = bss_conf->beacon_int;
6373 priv->timestamp = bss_conf->timestamp;
6374 priv->assoc_capability = bss_conf->assoc_capability;
6375 priv->next_scan_jiffies = jiffies +
6376 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
6377 mutex_lock(&priv->mutex);
6378 iwl3945_post_associate(priv);
6379 mutex_unlock(&priv->mutex);
6382 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
6384 } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) {
6385 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
6386 iwl3945_send_rxon_assoc(priv);
6391 static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
6394 unsigned long flags;
6395 struct iwl_priv *priv = hw->priv;
6396 DECLARE_SSID_BUF(ssid_buf);
6398 IWL_DEBUG_MAC80211("enter\n");
6400 mutex_lock(&priv->mutex);
6401 spin_lock_irqsave(&priv->lock, flags);
6403 if (!iwl_is_ready_rf(priv)) {
6405 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6409 /* we don't schedule scan within next_scan_jiffies period */
6410 if (priv->next_scan_jiffies &&
6411 time_after(priv->next_scan_jiffies, jiffies)) {
6415 /* if we just finished scan ask for delay for a broadcast scan */
6416 if ((len == 0) && priv->last_scan_jiffies &&
6417 time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN,
6423 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6424 print_ssid(ssid_buf, ssid, len), (int)len);
6426 priv->one_direct_scan = 1;
6427 priv->direct_ssid_len = (u8)
6428 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
6429 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
6431 priv->one_direct_scan = 0;
6433 rc = iwl3945_scan_initiate(priv);
6435 IWL_DEBUG_MAC80211("leave\n");
6438 spin_unlock_irqrestore(&priv->lock, flags);
6439 mutex_unlock(&priv->mutex);
6444 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
6445 struct ieee80211_vif *vif,
6446 struct ieee80211_sta *sta,
6447 struct ieee80211_key_conf *key)
6449 struct iwl_priv *priv = hw->priv;
6454 IWL_DEBUG_MAC80211("enter\n");
6456 if (iwl3945_mod_params.sw_crypto) {
6457 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6461 addr = sta ? sta->addr : iwl_bcast_addr;
6462 sta_id = iwl3945_hw_find_station(priv, addr);
6463 if (sta_id == IWL_INVALID_STATION) {
6464 IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
6469 mutex_lock(&priv->mutex);
6471 iwl_scan_cancel_timeout(priv, 100);
6475 ret = iwl3945_update_sta_key_info(priv, key, sta_id);
6477 iwl3945_set_rxon_hwcrypto(priv, 1);
6478 iwl3945_commit_rxon(priv);
6479 key->hw_key_idx = sta_id;
6480 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
6481 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
6485 ret = iwl3945_clear_sta_key_info(priv, sta_id);
6487 iwl3945_set_rxon_hwcrypto(priv, 0);
6488 iwl3945_commit_rxon(priv);
6489 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6496 IWL_DEBUG_MAC80211("leave\n");
6497 mutex_unlock(&priv->mutex);
6502 static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
6503 const struct ieee80211_tx_queue_params *params)
6505 struct iwl_priv *priv = hw->priv;
6506 unsigned long flags;
6509 IWL_DEBUG_MAC80211("enter\n");
6511 if (!iwl_is_ready_rf(priv)) {
6512 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6516 if (queue >= AC_NUM) {
6517 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
6521 q = AC_NUM - 1 - queue;
6523 spin_lock_irqsave(&priv->lock, flags);
6525 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
6526 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
6527 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
6528 priv->qos_data.def_qos_parm.ac[q].edca_txop =
6529 cpu_to_le16((params->txop * 32));
6531 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
6532 priv->qos_data.qos_active = 1;
6534 spin_unlock_irqrestore(&priv->lock, flags);
6536 mutex_lock(&priv->mutex);
6537 if (priv->iw_mode == NL80211_IFTYPE_AP)
6538 iwl3945_activate_qos(priv, 1);
6539 else if (priv->assoc_id && iwl3945_is_associated(priv))
6540 iwl3945_activate_qos(priv, 0);
6542 mutex_unlock(&priv->mutex);
6544 IWL_DEBUG_MAC80211("leave\n");
6548 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
6549 struct ieee80211_tx_queue_stats *stats)
6551 struct iwl_priv *priv = hw->priv;
6553 struct iwl_tx_queue *txq;
6554 struct iwl_queue *q;
6555 unsigned long flags;
6557 IWL_DEBUG_MAC80211("enter\n");
6559 if (!iwl_is_ready_rf(priv)) {
6560 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6564 spin_lock_irqsave(&priv->lock, flags);
6566 for (i = 0; i < AC_NUM; i++) {
6567 txq = &priv->txq[i];
6569 avail = iwl_queue_space(q);
6571 stats[i].len = q->n_window - avail;
6572 stats[i].limit = q->n_window - q->high_mark;
6573 stats[i].count = q->n_window;
6576 spin_unlock_irqrestore(&priv->lock, flags);
6578 IWL_DEBUG_MAC80211("leave\n");
6583 static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw)
6585 struct iwl_priv *priv = hw->priv;
6586 unsigned long flags;
6588 mutex_lock(&priv->mutex);
6589 IWL_DEBUG_MAC80211("enter\n");
6591 iwl_reset_qos(priv);
6593 spin_lock_irqsave(&priv->lock, flags);
6595 priv->assoc_capability = 0;
6596 priv->call_post_assoc_from_beacon = 0;
6598 /* new association get rid of ibss beacon skb */
6599 if (priv->ibss_beacon)
6600 dev_kfree_skb(priv->ibss_beacon);
6602 priv->ibss_beacon = NULL;
6604 priv->beacon_int = priv->hw->conf.beacon_int;
6605 priv->timestamp = 0;
6606 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
6607 priv->beacon_int = 0;
6609 spin_unlock_irqrestore(&priv->lock, flags);
6611 if (!iwl_is_ready_rf(priv)) {
6612 IWL_DEBUG_MAC80211("leave - not ready\n");
6613 mutex_unlock(&priv->mutex);
6617 /* we are restarting association process
6618 * clear RXON_FILTER_ASSOC_MSK bit
6620 if (priv->iw_mode != NL80211_IFTYPE_AP) {
6621 iwl_scan_cancel_timeout(priv, 100);
6622 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6623 iwl3945_commit_rxon(priv);
6626 /* Per mac80211.h: This is only used in IBSS mode... */
6627 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6629 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
6630 mutex_unlock(&priv->mutex);
6634 iwl3945_set_rate(priv);
6636 mutex_unlock(&priv->mutex);
6638 IWL_DEBUG_MAC80211("leave\n");
6642 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
6644 struct iwl_priv *priv = hw->priv;
6645 unsigned long flags;
6647 IWL_DEBUG_MAC80211("enter\n");
6649 if (!iwl_is_ready_rf(priv)) {
6650 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6654 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6655 IWL_DEBUG_MAC80211("leave - not IBSS\n");
6659 spin_lock_irqsave(&priv->lock, flags);
6661 if (priv->ibss_beacon)
6662 dev_kfree_skb(priv->ibss_beacon);
6664 priv->ibss_beacon = skb;
6668 IWL_DEBUG_MAC80211("leave\n");
6669 spin_unlock_irqrestore(&priv->lock, flags);
6671 iwl_reset_qos(priv);
6673 iwl3945_post_associate(priv);
6679 /*****************************************************************************
6683 *****************************************************************************/
6685 #ifdef CONFIG_IWL3945_DEBUG
6688 * The following adds a new attribute to the sysfs representation
6689 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
6690 * used for controlling the debug level.
6692 * See the level definitions in iwl for details.
6694 static ssize_t show_debug_level(struct device *d,
6695 struct device_attribute *attr, char *buf)
6697 struct iwl_priv *priv = d->driver_data;
6699 return sprintf(buf, "0x%08X\n", priv->debug_level);
6701 static ssize_t store_debug_level(struct device *d,
6702 struct device_attribute *attr,
6703 const char *buf, size_t count)
6705 struct iwl_priv *priv = d->driver_data;
6709 ret = strict_strtoul(buf, 0, &val);
6711 IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
6713 priv->debug_level = val;
6715 return strnlen(buf, count);
6718 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
6719 show_debug_level, store_debug_level);
6721 #endif /* CONFIG_IWL3945_DEBUG */
6723 static ssize_t show_temperature(struct device *d,
6724 struct device_attribute *attr, char *buf)
6726 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6728 if (!iwl_is_alive(priv))
6731 return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
6734 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
6736 static ssize_t show_tx_power(struct device *d,
6737 struct device_attribute *attr, char *buf)
6739 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6740 return sprintf(buf, "%d\n", priv->user_txpower_limit);
6743 static ssize_t store_tx_power(struct device *d,
6744 struct device_attribute *attr,
6745 const char *buf, size_t count)
6747 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6748 char *p = (char *)buf;
6751 val = simple_strtoul(p, &p, 10);
6753 IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
6755 iwl3945_hw_reg_set_txpower(priv, val);
6760 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
6762 static ssize_t show_flags(struct device *d,
6763 struct device_attribute *attr, char *buf)
6765 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6767 return sprintf(buf, "0x%04X\n", priv->active39_rxon.flags);
6770 static ssize_t store_flags(struct device *d,
6771 struct device_attribute *attr,
6772 const char *buf, size_t count)
6774 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6775 u32 flags = simple_strtoul(buf, NULL, 0);
6777 mutex_lock(&priv->mutex);
6778 if (le32_to_cpu(priv->staging39_rxon.flags) != flags) {
6779 /* Cancel any currently running scans... */
6780 if (iwl_scan_cancel_timeout(priv, 100))
6781 IWL_WARN(priv, "Could not cancel scan.\n");
6783 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6785 priv->staging39_rxon.flags = cpu_to_le32(flags);
6786 iwl3945_commit_rxon(priv);
6789 mutex_unlock(&priv->mutex);
6794 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
6796 static ssize_t show_filter_flags(struct device *d,
6797 struct device_attribute *attr, char *buf)
6799 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6801 return sprintf(buf, "0x%04X\n",
6802 le32_to_cpu(priv->active39_rxon.filter_flags));
6805 static ssize_t store_filter_flags(struct device *d,
6806 struct device_attribute *attr,
6807 const char *buf, size_t count)
6809 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6810 u32 filter_flags = simple_strtoul(buf, NULL, 0);
6812 mutex_lock(&priv->mutex);
6813 if (le32_to_cpu(priv->staging39_rxon.filter_flags) != filter_flags) {
6814 /* Cancel any currently running scans... */
6815 if (iwl_scan_cancel_timeout(priv, 100))
6816 IWL_WARN(priv, "Could not cancel scan.\n");
6818 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
6819 "0x%04X\n", filter_flags);
6820 priv->staging39_rxon.filter_flags =
6821 cpu_to_le32(filter_flags);
6822 iwl3945_commit_rxon(priv);
6825 mutex_unlock(&priv->mutex);
6830 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
6831 store_filter_flags);
6833 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
6835 static ssize_t show_measurement(struct device *d,
6836 struct device_attribute *attr, char *buf)
6838 struct iwl_priv *priv = dev_get_drvdata(d);
6839 struct iwl_spectrum_notification measure_report;
6840 u32 size = sizeof(measure_report), len = 0, ofs = 0;
6841 u8 *data = (u8 *)&measure_report;
6842 unsigned long flags;
6844 spin_lock_irqsave(&priv->lock, flags);
6845 if (!(priv->measurement_status & MEASUREMENT_READY)) {
6846 spin_unlock_irqrestore(&priv->lock, flags);
6849 memcpy(&measure_report, &priv->measure_report, size);
6850 priv->measurement_status = 0;
6851 spin_unlock_irqrestore(&priv->lock, flags);
6853 while (size && (PAGE_SIZE - len)) {
6854 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
6855 PAGE_SIZE - len, 1);
6857 if (PAGE_SIZE - len)
6861 size -= min(size, 16U);
6867 static ssize_t store_measurement(struct device *d,
6868 struct device_attribute *attr,
6869 const char *buf, size_t count)
6871 struct iwl_priv *priv = dev_get_drvdata(d);
6872 struct ieee80211_measurement_params params = {
6873 .channel = le16_to_cpu(priv->active39_rxon.channel),
6874 .start_time = cpu_to_le64(priv->last_tsf),
6875 .duration = cpu_to_le16(1),
6877 u8 type = IWL_MEASURE_BASIC;
6883 strncpy(buffer, buf, min(sizeof(buffer), count));
6884 channel = simple_strtoul(p, NULL, 0);
6886 params.channel = channel;
6889 while (*p && *p != ' ')
6892 type = simple_strtoul(p + 1, NULL, 0);
6895 IWL_DEBUG_INFO("Invoking measurement of type %d on "
6896 "channel %d (for '%s')\n", type, params.channel, buf);
6897 iwl3945_get_measurement(priv, ¶ms, type);
6902 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
6903 show_measurement, store_measurement);
6904 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
6906 static ssize_t store_retry_rate(struct device *d,
6907 struct device_attribute *attr,
6908 const char *buf, size_t count)
6910 struct iwl_priv *priv = dev_get_drvdata(d);
6912 priv->retry_rate = simple_strtoul(buf, NULL, 0);
6913 if (priv->retry_rate <= 0)
6914 priv->retry_rate = 1;
6919 static ssize_t show_retry_rate(struct device *d,
6920 struct device_attribute *attr, char *buf)
6922 struct iwl_priv *priv = dev_get_drvdata(d);
6923 return sprintf(buf, "%d", priv->retry_rate);
6926 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
6929 static ssize_t store_power_level(struct device *d,
6930 struct device_attribute *attr,
6931 const char *buf, size_t count)
6933 struct iwl_priv *priv = dev_get_drvdata(d);
6937 mode = simple_strtoul(buf, NULL, 0);
6938 mutex_lock(&priv->mutex);
6940 if (!iwl_is_ready(priv)) {
6945 if ((mode < 1) || (mode > IWL39_POWER_LIMIT) ||
6946 (mode == IWL39_POWER_AC))
6947 mode = IWL39_POWER_AC;
6949 mode |= IWL_POWER_ENABLED;
6951 if (mode != priv->power_mode) {
6952 rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode));
6954 IWL_DEBUG_MAC80211("failed setting power mode.\n");
6957 priv->power_mode = mode;
6963 mutex_unlock(&priv->mutex);
6967 #define MAX_WX_STRING 80
6969 /* Values are in microsecond */
6970 static const s32 timeout_duration[] = {
6977 static const s32 period_duration[] = {
6985 static ssize_t show_power_level(struct device *d,
6986 struct device_attribute *attr, char *buf)
6988 struct iwl_priv *priv = dev_get_drvdata(d);
6989 int level = IWL_POWER_LEVEL(priv->power_mode);
6992 p += sprintf(p, "%d ", level);
6994 case IWL_POWER_MODE_CAM:
6995 case IWL39_POWER_AC:
6996 p += sprintf(p, "(AC)");
6998 case IWL39_POWER_BATTERY:
6999 p += sprintf(p, "(BATTERY)");
7003 "(Timeout %dms, Period %dms)",
7004 timeout_duration[level - 1] / 1000,
7005 period_duration[level - 1] / 1000);
7008 if (!(priv->power_mode & IWL_POWER_ENABLED))
7009 p += sprintf(p, " OFF\n");
7011 p += sprintf(p, " \n");
7017 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
7020 static ssize_t show_channels(struct device *d,
7021 struct device_attribute *attr, char *buf)
7023 /* all this shit doesn't belong into sysfs anyway */
7027 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
7029 static ssize_t show_statistics(struct device *d,
7030 struct device_attribute *attr, char *buf)
7032 struct iwl_priv *priv = dev_get_drvdata(d);
7033 u32 size = sizeof(struct iwl3945_notif_statistics);
7034 u32 len = 0, ofs = 0;
7035 u8 *data = (u8 *)&priv->statistics_39;
7038 if (!iwl_is_alive(priv))
7041 mutex_lock(&priv->mutex);
7042 rc = iwl3945_send_statistics_request(priv);
7043 mutex_unlock(&priv->mutex);
7047 "Error sending statistics request: 0x%08X\n", rc);
7051 while (size && (PAGE_SIZE - len)) {
7052 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
7053 PAGE_SIZE - len, 1);
7055 if (PAGE_SIZE - len)
7059 size -= min(size, 16U);
7065 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
7067 static ssize_t show_antenna(struct device *d,
7068 struct device_attribute *attr, char *buf)
7070 struct iwl_priv *priv = dev_get_drvdata(d);
7072 if (!iwl_is_alive(priv))
7075 return sprintf(buf, "%d\n", priv->antenna);
7078 static ssize_t store_antenna(struct device *d,
7079 struct device_attribute *attr,
7080 const char *buf, size_t count)
7083 struct iwl_priv *priv = dev_get_drvdata(d);
7088 if (sscanf(buf, "%1i", &ant) != 1) {
7089 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7093 if ((ant >= 0) && (ant <= 2)) {
7094 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
7095 priv->antenna = (enum iwl3945_antenna)ant;
7097 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
7103 static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
7105 static ssize_t show_status(struct device *d,
7106 struct device_attribute *attr, char *buf)
7108 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
7109 if (!iwl_is_alive(priv))
7111 return sprintf(buf, "0x%08x\n", (int)priv->status);
7114 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
7116 static ssize_t dump_error_log(struct device *d,
7117 struct device_attribute *attr,
7118 const char *buf, size_t count)
7120 char *p = (char *)buf;
7123 iwl3945_dump_nic_error_log((struct iwl_priv *)d->driver_data);
7125 return strnlen(buf, count);
7128 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
7130 static ssize_t dump_event_log(struct device *d,
7131 struct device_attribute *attr,
7132 const char *buf, size_t count)
7134 char *p = (char *)buf;
7137 iwl3945_dump_nic_event_log((struct iwl_priv *)d->driver_data);
7139 return strnlen(buf, count);
7142 static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
7144 /*****************************************************************************
7146 * driver setup and tear down
7148 *****************************************************************************/
7150 static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
7152 priv->workqueue = create_workqueue(DRV_NAME);
7154 init_waitqueue_head(&priv->wait_command_queue);
7156 INIT_WORK(&priv->up, iwl3945_bg_up);
7157 INIT_WORK(&priv->restart, iwl3945_bg_restart);
7158 INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
7159 INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed);
7160 INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
7161 INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan);
7162 INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill);
7163 INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
7164 INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
7165 INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
7166 INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check);
7167 INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll);
7169 iwl3945_hw_setup_deferred_work(priv);
7171 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
7172 iwl3945_irq_tasklet, (unsigned long)priv);
7175 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
7177 iwl3945_hw_cancel_deferred_work(priv);
7179 cancel_delayed_work_sync(&priv->init_alive_start);
7180 cancel_delayed_work(&priv->scan_check);
7181 cancel_delayed_work(&priv->alive_start);
7182 cancel_work_sync(&priv->beacon_update);
7185 static struct attribute *iwl3945_sysfs_entries[] = {
7186 &dev_attr_antenna.attr,
7187 &dev_attr_channels.attr,
7188 &dev_attr_dump_errors.attr,
7189 &dev_attr_dump_events.attr,
7190 &dev_attr_flags.attr,
7191 &dev_attr_filter_flags.attr,
7192 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7193 &dev_attr_measurement.attr,
7195 &dev_attr_power_level.attr,
7196 &dev_attr_retry_rate.attr,
7197 &dev_attr_statistics.attr,
7198 &dev_attr_status.attr,
7199 &dev_attr_temperature.attr,
7200 &dev_attr_tx_power.attr,
7201 #ifdef CONFIG_IWL3945_DEBUG
7202 &dev_attr_debug_level.attr,
7207 static struct attribute_group iwl3945_attribute_group = {
7208 .name = NULL, /* put in device directory */
7209 .attrs = iwl3945_sysfs_entries,
7212 static struct ieee80211_ops iwl3945_hw_ops = {
7213 .tx = iwl3945_mac_tx,
7214 .start = iwl3945_mac_start,
7215 .stop = iwl3945_mac_stop,
7216 .add_interface = iwl3945_mac_add_interface,
7217 .remove_interface = iwl3945_mac_remove_interface,
7218 .config = iwl3945_mac_config,
7219 .config_interface = iwl3945_mac_config_interface,
7220 .configure_filter = iwl3945_configure_filter,
7221 .set_key = iwl3945_mac_set_key,
7222 .get_tx_stats = iwl3945_mac_get_tx_stats,
7223 .conf_tx = iwl3945_mac_conf_tx,
7224 .reset_tsf = iwl3945_mac_reset_tsf,
7225 .bss_info_changed = iwl3945_bss_info_changed,
7226 .hw_scan = iwl3945_mac_hw_scan
7229 static int iwl3945_init_drv(struct iwl_priv *priv)
7233 priv->retry_rate = 1;
7234 priv->ibss_beacon = NULL;
7236 spin_lock_init(&priv->lock);
7237 spin_lock_init(&priv->power_data_39.lock);
7238 spin_lock_init(&priv->sta_lock);
7239 spin_lock_init(&priv->hcmd_lock);
7241 INIT_LIST_HEAD(&priv->free_frames);
7243 mutex_init(&priv->mutex);
7245 /* Clear the driver's (not device's) station table */
7246 iwl3945_clear_stations_table(priv);
7248 priv->data_retry_limit = -1;
7249 priv->ieee_channels = NULL;
7250 priv->ieee_rates = NULL;
7251 priv->band = IEEE80211_BAND_2GHZ;
7253 priv->iw_mode = NL80211_IFTYPE_STATION;
7255 iwl_reset_qos(priv);
7257 priv->qos_data.qos_active = 0;
7258 priv->qos_data.qos_cap.val = 0;
7260 priv->rates_mask = IWL_RATES_MASK;
7261 /* If power management is turned on, default to AC mode */
7262 priv->power_mode = IWL39_POWER_AC;
7263 priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
7265 ret = iwl3945_init_channel_map(priv);
7267 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
7271 ret = iwl3945_init_geos(priv);
7273 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
7274 goto err_free_channel_map;
7279 err_free_channel_map:
7280 iwl3945_free_channel_map(priv);
7285 static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
7288 struct iwl_priv *priv;
7289 struct ieee80211_hw *hw;
7290 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
7291 unsigned long flags;
7293 /***********************
7294 * 1. Allocating HW data
7295 * ********************/
7297 /* mac80211 allocates memory for this device instance, including
7298 * space for this driver's private structure */
7299 hw = iwl_alloc_all(cfg, &iwl3945_hw_ops);
7301 printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
7306 SET_IEEE80211_DEV(hw, &pdev->dev);
7308 if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
7309 (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
7311 "invalid queues_num, should be between %d and %d\n",
7312 IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
7318 * Disabling hardware scan means that mac80211 will perform scans
7319 * "the hard way", rather than using device's scan.
7321 if (iwl3945_mod_params.disable_hw_scan) {
7322 IWL_DEBUG_INFO("Disabling hw_scan\n");
7323 iwl3945_hw_ops.hw_scan = NULL;
7327 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7329 priv->pci_dev = pdev;
7331 #ifdef CONFIG_IWL3945_DEBUG
7332 priv->debug_level = iwl3945_mod_params.debug;
7333 atomic_set(&priv->restrict_refcnt, 0);
7335 hw->rate_control_algorithm = "iwl-3945-rs";
7336 hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
7338 /* Select antenna (may be helpful if only one antenna is connected) */
7339 priv->antenna = (enum iwl3945_antenna)iwl3945_mod_params.antenna;
7341 /* Tell mac80211 our characteristics */
7342 hw->flags = IEEE80211_HW_SIGNAL_DBM |
7343 IEEE80211_HW_NOISE_DBM;
7345 hw->wiphy->interface_modes =
7346 BIT(NL80211_IFTYPE_STATION) |
7347 BIT(NL80211_IFTYPE_ADHOC);
7349 hw->wiphy->fw_handles_regulatory = true;
7351 /* 4 EDCA QOS priorities */
7354 /***************************
7355 * 2. Initializing PCI bus
7356 * *************************/
7357 if (pci_enable_device(pdev)) {
7359 goto out_ieee80211_free_hw;
7362 pci_set_master(pdev);
7364 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7366 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
7368 IWL_WARN(priv, "No suitable DMA available.\n");
7369 goto out_pci_disable_device;
7372 pci_set_drvdata(pdev, priv);
7373 err = pci_request_regions(pdev, DRV_NAME);
7375 goto out_pci_disable_device;
7377 /***********************
7378 * 3. Read REV Register
7379 * ********************/
7380 priv->hw_base = pci_iomap(pdev, 0, 0);
7381 if (!priv->hw_base) {
7383 goto out_pci_release_regions;
7386 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7387 (unsigned long long) pci_resource_len(pdev, 0));
7388 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
7390 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7391 * PCI Tx retries from interfering with C3 CPU state */
7392 pci_write_config_byte(pdev, 0x41, 0x00);
7395 err = priv->cfg->ops->lib->apm_ops.init(priv);
7397 IWL_DEBUG_INFO("Failed to init APMG\n");
7401 /***********************
7403 * ********************/
7405 /* Read the EEPROM */
7406 err = iwl3945_eeprom_init(priv);
7408 IWL_ERR(priv, "Unable to init EEPROM\n");
7409 goto out_remove_sysfs;
7411 /* MAC Address location in EEPROM same for 3945/4965 */
7412 get_eeprom_mac(priv, priv->mac_addr);
7413 IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr);
7414 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
7416 /***********************
7417 * 5. Setup HW Constants
7418 * ********************/
7419 /* Device-specific setup */
7420 if (iwl3945_hw_set_hw_params(priv)) {
7421 IWL_ERR(priv, "failed to set hw settings\n");
7425 /***********************
7427 * ********************/
7429 err = iwl3945_init_drv(priv);
7431 IWL_ERR(priv, "initializing driver failed\n");
7435 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
7438 /***********************************
7439 * 7. Initialize Module Parameters
7440 * **********************************/
7442 /* Initialize module parameter values here */
7443 /* Disable radio (SW RF KILL) via parameter when loading driver */
7444 if (iwl3945_mod_params.disable) {
7445 set_bit(STATUS_RF_KILL_SW, &priv->status);
7446 IWL_DEBUG_INFO("Radio disabled.\n");
7450 /***********************
7452 * ********************/
7454 spin_lock_irqsave(&priv->lock, flags);
7455 iwl3945_disable_interrupts(priv);
7456 spin_unlock_irqrestore(&priv->lock, flags);
7458 pci_enable_msi(priv->pci_dev);
7460 err = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED,
7463 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
7464 goto out_disable_msi;
7467 err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7469 IWL_ERR(priv, "failed to create sysfs device attributes\n");
7470 goto out_release_irq;
7473 iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
7474 iwl3945_setup_deferred_work(priv);
7475 iwl3945_setup_rx_handlers(priv);
7477 /*********************************
7478 * 9. Setup and Register mac80211
7479 * *******************************/
7481 err = ieee80211_register_hw(priv->hw);
7483 IWL_ERR(priv, "Failed to register network device: %d\n", err);
7484 goto out_remove_sysfs;
7487 priv->hw->conf.beacon_int = 100;
7488 priv->mac80211_registered = 1;
7490 err = iwl3945_rfkill_init(priv);
7492 IWL_ERR(priv, "Unable to initialize RFKILL system. "
7493 "Ignoring error: %d\n", err);
7495 /* Start monitoring the killswitch */
7496 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
7502 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7504 iwl3945_free_geos(priv);
7507 free_irq(priv->pci_dev->irq, priv);
7508 destroy_workqueue(priv->workqueue);
7509 priv->workqueue = NULL;
7510 iwl3945_unset_hw_params(priv);
7512 pci_disable_msi(priv->pci_dev);
7514 pci_iounmap(pdev, priv->hw_base);
7515 out_pci_release_regions:
7516 pci_release_regions(pdev);
7517 out_pci_disable_device:
7518 pci_disable_device(pdev);
7519 pci_set_drvdata(pdev, NULL);
7520 out_ieee80211_free_hw:
7521 ieee80211_free_hw(priv->hw);
7526 static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
7528 struct iwl_priv *priv = pci_get_drvdata(pdev);
7529 unsigned long flags;
7534 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7536 set_bit(STATUS_EXIT_PENDING, &priv->status);
7538 if (priv->mac80211_registered) {
7539 ieee80211_unregister_hw(priv->hw);
7540 priv->mac80211_registered = 0;
7545 /* make sure we flush any pending irq or
7546 * tasklet for the driver
7548 spin_lock_irqsave(&priv->lock, flags);
7549 iwl3945_disable_interrupts(priv);
7550 spin_unlock_irqrestore(&priv->lock, flags);
7552 iwl_synchronize_irq(priv);
7554 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7556 iwl3945_rfkill_unregister(priv);
7557 cancel_delayed_work(&priv->rfkill_poll);
7559 iwl3945_dealloc_ucode_pci(priv);
7562 iwl_rx_queue_free(priv, &priv->rxq);
7563 iwl3945_hw_txq_ctx_free(priv);
7565 iwl3945_unset_hw_params(priv);
7566 iwl3945_clear_stations_table(priv);
7568 /*netif_stop_queue(dev); */
7569 flush_workqueue(priv->workqueue);
7571 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
7572 * priv->workqueue... so we can't take down the workqueue
7574 destroy_workqueue(priv->workqueue);
7575 priv->workqueue = NULL;
7577 free_irq(pdev->irq, priv);
7578 pci_disable_msi(pdev);
7580 pci_iounmap(pdev, priv->hw_base);
7581 pci_release_regions(pdev);
7582 pci_disable_device(pdev);
7583 pci_set_drvdata(pdev, NULL);
7585 iwl3945_free_channel_map(priv);
7586 iwl3945_free_geos(priv);
7587 kfree(priv->scan39);
7588 if (priv->ibss_beacon)
7589 dev_kfree_skb(priv->ibss_beacon);
7591 ieee80211_free_hw(priv->hw);
7596 static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state)
7598 struct iwl_priv *priv = pci_get_drvdata(pdev);
7600 if (priv->is_open) {
7601 set_bit(STATUS_IN_SUSPEND, &priv->status);
7602 iwl3945_mac_stop(priv->hw);
7605 pci_save_state(pdev);
7606 pci_disable_device(pdev);
7607 pci_set_power_state(pdev, PCI_D3hot);
7612 static int iwl3945_pci_resume(struct pci_dev *pdev)
7614 struct iwl_priv *priv = pci_get_drvdata(pdev);
7616 pci_set_power_state(pdev, PCI_D0);
7617 pci_enable_device(pdev);
7618 pci_restore_state(pdev);
7621 iwl3945_mac_start(priv->hw);
7623 clear_bit(STATUS_IN_SUSPEND, &priv->status);
7627 #endif /* CONFIG_PM */
7629 /*************** RFKILL FUNCTIONS **********/
7630 #ifdef CONFIG_IWL3945_RFKILL
7631 /* software rf-kill from user */
7632 static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state)
7634 struct iwl_priv *priv = data;
7640 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
7643 IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state);
7644 mutex_lock(&priv->mutex);
7647 case RFKILL_STATE_UNBLOCKED:
7648 if (iwl_is_rfkill_hw(priv)) {
7652 iwl3945_radio_kill_sw(priv, 0);
7654 case RFKILL_STATE_SOFT_BLOCKED:
7655 iwl3945_radio_kill_sw(priv, 1);
7658 IWL_WARN(priv, "received unexpected RFKILL state %d\n", state);
7662 mutex_unlock(&priv->mutex);
7667 int iwl3945_rfkill_init(struct iwl_priv *priv)
7669 struct device *device = wiphy_dev(priv->hw->wiphy);
7672 BUG_ON(device == NULL);
7674 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
7675 priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
7676 if (!priv->rfkill) {
7677 IWL_ERR(priv, "Unable to allocate rfkill device.\n");
7682 priv->rfkill->name = priv->cfg->name;
7683 priv->rfkill->data = priv;
7684 priv->rfkill->state = RFKILL_STATE_UNBLOCKED;
7685 priv->rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill;
7686 priv->rfkill->user_claim_unsupported = 1;
7688 priv->rfkill->dev.class->suspend = NULL;
7689 priv->rfkill->dev.class->resume = NULL;
7691 ret = rfkill_register(priv->rfkill);
7693 IWL_ERR(priv, "Unable to register rfkill: %d\n", ret);
7697 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7701 if (priv->rfkill != NULL)
7702 rfkill_free(priv->rfkill);
7703 priv->rfkill = NULL;
7706 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7710 void iwl3945_rfkill_unregister(struct iwl_priv *priv)
7713 rfkill_unregister(priv->rfkill);
7715 priv->rfkill = NULL;
7718 /* set rf-kill to the right state. */
7719 void iwl3945_rfkill_set_hw_state(struct iwl_priv *priv)
7725 if (iwl_is_rfkill_hw(priv)) {
7726 rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED);
7730 if (!iwl_is_rfkill_sw(priv))
7731 rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED);
7733 rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED);
7737 /*****************************************************************************
7739 * driver and module entry point
7741 *****************************************************************************/
7743 static struct pci_driver iwl3945_driver = {
7745 .id_table = iwl3945_hw_card_ids,
7746 .probe = iwl3945_pci_probe,
7747 .remove = __devexit_p(iwl3945_pci_remove),
7749 .suspend = iwl3945_pci_suspend,
7750 .resume = iwl3945_pci_resume,
7754 static int __init iwl3945_init(void)
7758 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
7759 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
7761 ret = iwl3945_rate_control_register();
7763 printk(KERN_ERR DRV_NAME
7764 "Unable to register rate control algorithm: %d\n", ret);
7768 ret = pci_register_driver(&iwl3945_driver);
7770 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
7771 goto error_register;
7777 iwl3945_rate_control_unregister();
7781 static void __exit iwl3945_exit(void)
7783 pci_unregister_driver(&iwl3945_driver);
7784 iwl3945_rate_control_unregister();
7787 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
7789 module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
7790 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
7791 module_param_named(disable, iwl3945_mod_params.disable, int, 0444);
7792 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
7793 module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
7794 MODULE_PARM_DESC(swcrypto,
7795 "using software crypto (default 1 [software])\n");
7796 module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
7797 MODULE_PARM_DESC(debug, "debug output mask");
7798 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
7799 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
7801 module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444);
7802 MODULE_PARM_DESC(queues_num, "number of hw queues.");
7804 module_exit(iwl3945_exit);
7805 module_init(iwl3945_init);