1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 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) 2003-2008 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,
95 /* the rest are 0 by default */
98 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
101 * Theory of operation
103 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
104 * of buffer descriptors, each of which points to one or more data buffers for
105 * the device to read from or fill. Driver and device exchange status of each
106 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
107 * entries in each circular buffer, to protect against confusing empty and full
110 * The device reads or writes the data in the queues via the device's several
111 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
113 * For Tx queue, there are low mark and high mark limits. If, after queuing
114 * the packet for Tx, free space become < low mark, Tx queue stopped. When
115 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
118 * The 3945 operates with six queues: One receive queue, one transmit queue
119 * (#4) for sending commands to the device firmware, and four transmit queues
120 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
121 ***************************************************/
124 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
126 static int iwl3945_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
127 int count, int slots_num, u32 id)
130 q->n_window = slots_num;
133 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
134 * and iwl_queue_dec_wrap are broken. */
135 BUG_ON(!is_power_of_2(count));
137 /* slots_num must be power-of-two size, otherwise
138 * get_cmd_index is broken. */
139 BUG_ON(!is_power_of_2(slots_num));
141 q->low_mark = q->n_window / 4;
145 q->high_mark = q->n_window / 8;
146 if (q->high_mark < 2)
149 q->write_ptr = q->read_ptr = 0;
155 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
157 static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
158 struct iwl_tx_queue *txq, u32 id)
160 struct pci_dev *dev = priv->pci_dev;
162 /* Driver private data, only for Tx (not command) queues,
163 * not shared with device. */
164 if (id != IWL_CMD_QUEUE_NUM) {
165 txq->txb = kmalloc(sizeof(txq->txb[0]) *
166 TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
168 IWL_ERR(priv, "kmalloc for auxiliary BD "
169 "structures failed\n");
175 /* Circular buffer of transmit frame descriptors (TFDs),
176 * shared with device */
177 txq->tfds39 = pci_alloc_consistent(dev,
178 sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX,
182 IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n",
183 sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX);
198 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
200 int iwl3945_tx_queue_init(struct iwl_priv *priv,
201 struct iwl_tx_queue *txq, int slots_num, u32 txq_id)
207 * Alloc buffer array for commands (Tx or other types of commands).
208 * For the command queue (#4), allocate command space + one big
209 * command for scan, since scan command is very huge; the system will
210 * not have two scans at the same time, so only one is needed.
211 * For data Tx queues (all other queues), no super-size command
214 len = sizeof(struct iwl_cmd);
215 for (i = 0; i <= slots_num; i++) {
216 if (i == slots_num) {
217 if (txq_id == IWL_CMD_QUEUE_NUM)
218 len += IWL_MAX_SCAN_SIZE;
223 txq->cmd[i] = kmalloc(len, GFP_KERNEL);
228 /* Alloc driver data array and TFD circular buffer */
229 rc = iwl3945_tx_queue_alloc(priv, txq, txq_id);
233 txq->need_update = 0;
235 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
236 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
237 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
239 /* Initialize queue high/low-water, head/tail indexes */
240 iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
242 /* Tell device where to find queue, enable DMA channel. */
243 iwl3945_hw_tx_queue_init(priv, txq);
247 for (i = 0; i < slots_num; i++) {
252 if (txq_id == IWL_CMD_QUEUE_NUM) {
253 kfree(txq->cmd[slots_num]);
254 txq->cmd[slots_num] = NULL;
260 * iwl3945_tx_queue_free - Deallocate DMA queue.
261 * @txq: Transmit queue to deallocate.
263 * Empty queue by removing and destroying all BD's.
265 * 0-fill, but do not free "txq" descriptor structure.
267 void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
269 struct iwl_queue *q = &txq->q;
270 struct pci_dev *dev = priv->pci_dev;
276 /* first, empty all BD's */
277 for (; q->write_ptr != q->read_ptr;
278 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
279 iwl3945_hw_txq_free_tfd(priv, txq);
281 len = sizeof(struct iwl_cmd) * q->n_window;
282 if (q->id == IWL_CMD_QUEUE_NUM)
283 len += IWL_MAX_SCAN_SIZE;
285 /* De-alloc array of command/tx buffers */
286 for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
289 /* De-alloc circular buffer of TFDs */
291 pci_free_consistent(dev, sizeof(struct iwl3945_tfd) *
292 txq->q.n_bd, txq->tfds39, txq->q.dma_addr);
294 /* De-alloc array of per-TFD driver data */
298 /* 0-fill queue descriptor structure */
299 memset(txq, 0, sizeof(*txq));
302 /*************** STATION TABLE MANAGEMENT ****
303 * mac80211 should be examined to determine if sta_info is duplicating
304 * the functionality provided here
307 /**************************************************************/
308 #if 0 /* temporary disable till we add real remove station */
310 * iwl3945_remove_station - Remove driver's knowledge of station.
312 * NOTE: This does not remove station from device's station table.
314 static u8 iwl3945_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
316 int index = IWL_INVALID_STATION;
320 spin_lock_irqsave(&priv->sta_lock, flags);
324 else if (is_broadcast_ether_addr(addr))
325 index = priv->hw_params.bcast_sta_id;
327 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
328 if (priv->stations_39[i].used &&
329 !compare_ether_addr(priv->stations_39[i].sta.sta.addr,
335 if (unlikely(index == IWL_INVALID_STATION))
338 if (priv->stations_39[index].used) {
339 priv->stations_39[index].used = 0;
340 priv->num_stations--;
343 BUG_ON(priv->num_stations < 0);
346 spin_unlock_irqrestore(&priv->sta_lock, flags);
352 * iwl3945_clear_stations_table - Clear the driver's station table
354 * NOTE: This does not clear or otherwise alter the device's station table.
356 static void iwl3945_clear_stations_table(struct iwl_priv *priv)
360 spin_lock_irqsave(&priv->sta_lock, flags);
362 priv->num_stations = 0;
363 memset(priv->stations_39, 0, sizeof(priv->stations_39));
365 spin_unlock_irqrestore(&priv->sta_lock, flags);
369 * iwl3945_add_station - Add station to station tables in driver and device
371 u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags)
374 int index = IWL_INVALID_STATION;
375 struct iwl3945_station_entry *station;
376 unsigned long flags_spin;
379 spin_lock_irqsave(&priv->sta_lock, flags_spin);
382 else if (is_broadcast_ether_addr(addr))
383 index = priv->hw_params.bcast_sta_id;
385 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
386 if (!compare_ether_addr(priv->stations_39[i].sta.sta.addr,
392 if (!priv->stations_39[i].used &&
393 index == IWL_INVALID_STATION)
397 /* These two conditions has the same outcome but keep them separate
398 since they have different meaning */
399 if (unlikely(index == IWL_INVALID_STATION)) {
400 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
404 if (priv->stations_39[index].used &&
405 !compare_ether_addr(priv->stations_39[index].sta.sta.addr, addr)) {
406 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
410 IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index, addr);
411 station = &priv->stations_39[index];
413 priv->num_stations++;
415 /* Set up the REPLY_ADD_STA command to send to device */
416 memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd));
417 memcpy(station->sta.sta.addr, addr, ETH_ALEN);
418 station->sta.mode = 0;
419 station->sta.sta.sta_id = index;
420 station->sta.station_flags = 0;
422 if (priv->band == IEEE80211_BAND_5GHZ)
423 rate = IWL_RATE_6M_PLCP;
425 rate = IWL_RATE_1M_PLCP;
427 /* Turn on both antennas for the station... */
428 station->sta.rate_n_flags =
429 iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK);
431 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
433 /* Add station to device's station table */
434 iwl3945_send_add_station(priv, &station->sta, flags);
440 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
442 #define IWL_CMD(x) case x: return #x
443 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
446 * iwl3945_enqueue_hcmd - enqueue a uCode command
447 * @priv: device private data point
448 * @cmd: a point to the ucode command structure
450 * The function returns < 0 values to indicate the operation is
451 * failed. On success, it turns the index (> 0) of command in the
454 static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
456 struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
457 struct iwl_queue *q = &txq->q;
458 struct iwl3945_tfd *tfd;
459 struct iwl_cmd *out_cmd;
461 u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
462 dma_addr_t phys_addr;
467 /* If any of the command structures end up being larger than
468 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
469 * we will need to increase the size of the TFD entries */
470 BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
471 !(cmd->meta.flags & CMD_SIZE_HUGE));
474 if (iwl_is_rfkill(priv)) {
475 IWL_DEBUG_INFO("Not sending command - RF KILL");
479 if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
480 IWL_ERR(priv, "No space for Tx\n");
484 spin_lock_irqsave(&priv->hcmd_lock, flags);
486 tfd = &txq->tfds39[q->write_ptr];
487 memset(tfd, 0, sizeof(*tfd));
489 idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
490 out_cmd = txq->cmd[idx];
492 out_cmd->hdr.cmd = cmd->id;
493 memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
494 memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
496 /* At this point, the out_cmd now has all of the incoming cmd
499 out_cmd->hdr.flags = 0;
500 out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
501 INDEX_TO_SEQ(q->write_ptr));
502 if (out_cmd->meta.flags & CMD_SIZE_HUGE)
503 out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
505 len = (idx == TFD_CMD_SLOTS) ?
506 IWL_MAX_SCAN_SIZE : sizeof(struct iwl_cmd);
508 phys_addr = pci_map_single(priv->pci_dev, out_cmd,
509 len, PCI_DMA_TODEVICE);
510 pci_unmap_addr_set(&out_cmd->meta, mapping, phys_addr);
511 pci_unmap_len_set(&out_cmd->meta, len, len);
512 phys_addr += offsetof(struct iwl_cmd, hdr);
514 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
516 pad = U32_PAD(cmd->len);
517 tfd->control_flags |= cpu_to_le32(TFD_CTL_PAD_SET(pad));
519 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
520 "%d bytes at %d[%d]:%d\n",
521 get_cmd_string(out_cmd->hdr.cmd),
522 out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
523 fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
525 txq->need_update = 1;
527 /* Increment and update queue's write index */
528 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
529 ret = iwl3945_tx_queue_update_write_ptr(priv, txq);
531 spin_unlock_irqrestore(&priv->hcmd_lock, flags);
532 return ret ? ret : idx;
535 static int iwl3945_send_cmd_async(struct iwl_priv *priv,
536 struct iwl_host_cmd *cmd)
540 BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
542 /* An asynchronous command can not expect an SKB to be set. */
543 BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
545 /* An asynchronous command MUST have a callback. */
546 BUG_ON(!cmd->meta.u.callback);
548 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
551 ret = iwl3945_enqueue_hcmd(priv, cmd);
554 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
555 get_cmd_string(cmd->id), ret);
561 static int iwl3945_send_cmd_sync(struct iwl_priv *priv,
562 struct iwl_host_cmd *cmd)
567 BUG_ON(cmd->meta.flags & CMD_ASYNC);
569 /* A synchronous command can not have a callback set. */
570 BUG_ON(cmd->meta.u.callback != NULL);
572 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) {
574 "Error sending %s: Already sending a host command\n",
575 get_cmd_string(cmd->id));
580 set_bit(STATUS_HCMD_ACTIVE, &priv->status);
582 if (cmd->meta.flags & CMD_WANT_SKB)
583 cmd->meta.source = &cmd->meta;
585 cmd_idx = iwl3945_enqueue_hcmd(priv, cmd);
589 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
590 get_cmd_string(cmd->id), ret);
594 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
595 !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
596 HOST_COMPLETE_TIMEOUT);
598 if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
599 IWL_ERR(priv, "Error sending %s: time out after %dms\n",
600 get_cmd_string(cmd->id),
601 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
603 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
609 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
610 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
611 get_cmd_string(cmd->id));
615 if (test_bit(STATUS_FW_ERROR, &priv->status)) {
616 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
617 get_cmd_string(cmd->id));
621 if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
622 IWL_ERR(priv, "Error: Response NULL in '%s'\n",
623 get_cmd_string(cmd->id));
632 if (cmd->meta.flags & CMD_WANT_SKB) {
633 struct iwl_cmd *qcmd;
635 /* Cancel the CMD_WANT_SKB flag for the cmd in the
636 * TX cmd queue. Otherwise in case the cmd comes
637 * in later, it will possibly set an invalid
638 * address (cmd->meta.source). */
639 qcmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
640 qcmd->meta.flags &= ~CMD_WANT_SKB;
643 if (cmd->meta.u.skb) {
644 dev_kfree_skb_any(cmd->meta.u.skb);
645 cmd->meta.u.skb = NULL;
648 clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status);
652 int iwl3945_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
654 if (cmd->meta.flags & CMD_ASYNC)
655 return iwl3945_send_cmd_async(priv, cmd);
657 return iwl3945_send_cmd_sync(priv, cmd);
660 int iwl3945_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
662 struct iwl_host_cmd cmd = {
668 return iwl3945_send_cmd_sync(priv, &cmd);
671 static int __must_check iwl3945_send_cmd_u32(struct iwl_priv *priv, u8 id, u32 val)
673 struct iwl_host_cmd cmd = {
679 return iwl3945_send_cmd_sync(priv, &cmd);
682 int iwl3945_send_statistics_request(struct iwl_priv *priv)
684 return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
688 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
689 * @band: 2.4 or 5 GHz band
690 * @channel: Any channel valid for the requested band
692 * In addition to setting the staging RXON, priv->band is also set.
694 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
695 * in the staging RXON flag structure based on the band
697 static int iwl3945_set_rxon_channel(struct iwl_priv *priv,
698 enum ieee80211_band band,
701 if (!iwl3945_get_channel_info(priv, band, channel)) {
702 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
707 if ((le16_to_cpu(priv->staging39_rxon.channel) == channel) &&
708 (priv->band == band))
711 priv->staging39_rxon.channel = cpu_to_le16(channel);
712 if (band == IEEE80211_BAND_5GHZ)
713 priv->staging39_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
715 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
719 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band);
725 * iwl3945_check_rxon_cmd - validate RXON structure is valid
727 * NOTE: This is really only useful during development and can eventually
728 * be #ifdef'd out once the driver is stable and folks aren't actively
731 static int iwl3945_check_rxon_cmd(struct iwl_priv *priv)
735 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
737 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
738 error |= le32_to_cpu(rxon->flags &
739 (RXON_FLG_TGJ_NARROW_BAND_MSK |
740 RXON_FLG_RADAR_DETECT_MSK));
742 IWL_WARN(priv, "check 24G fields %d | %d\n",
745 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
746 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
748 IWL_WARN(priv, "check 52 fields %d | %d\n",
750 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
752 IWL_WARN(priv, "check 52 CCK %d | %d\n",
755 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
757 IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
759 /* make sure basic rates 6Mbps and 1Mbps are supported */
760 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
761 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
763 IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
765 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
767 IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
769 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
770 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
772 IWL_WARN(priv, "check CCK and short slot %d | %d\n",
775 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
776 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
778 IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
781 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
782 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
784 IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
787 if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
788 error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK |
789 RXON_FLG_ANT_A_MSK)) == 0);
791 IWL_WARN(priv, "check antenna %d %d\n", counter++, error);
794 IWL_WARN(priv, "Tuning to channel %d\n",
795 le16_to_cpu(rxon->channel));
798 IWL_ERR(priv, "Not a valid rxon_assoc_cmd field values\n");
805 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
806 * @priv: staging_rxon is compared to active_rxon
808 * If the RXON structure is changing enough to require a new tune,
809 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
810 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
812 static int iwl3945_full_rxon_required(struct iwl_priv *priv)
815 /* These items are only settable from the full RXON command */
816 if (!(iwl3945_is_associated(priv)) ||
817 compare_ether_addr(priv->staging39_rxon.bssid_addr,
818 priv->active39_rxon.bssid_addr) ||
819 compare_ether_addr(priv->staging39_rxon.node_addr,
820 priv->active39_rxon.node_addr) ||
821 compare_ether_addr(priv->staging39_rxon.wlap_bssid_addr,
822 priv->active39_rxon.wlap_bssid_addr) ||
823 (priv->staging39_rxon.dev_type != priv->active39_rxon.dev_type) ||
824 (priv->staging39_rxon.channel != priv->active39_rxon.channel) ||
825 (priv->staging39_rxon.air_propagation !=
826 priv->active39_rxon.air_propagation) ||
827 (priv->staging39_rxon.assoc_id != priv->active39_rxon.assoc_id))
830 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
831 * be updated with the RXON_ASSOC command -- however only some
832 * flag transitions are allowed using RXON_ASSOC */
834 /* Check if we are not switching bands */
835 if ((priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
836 (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK))
839 /* Check if we are switching association toggle */
840 if ((priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
841 (priv->active39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
847 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
850 struct iwl_rx_packet *res = NULL;
851 struct iwl3945_rxon_assoc_cmd rxon_assoc;
852 struct iwl_host_cmd cmd = {
853 .id = REPLY_RXON_ASSOC,
854 .len = sizeof(rxon_assoc),
855 .meta.flags = CMD_WANT_SKB,
858 const struct iwl3945_rxon_cmd *rxon1 = &priv->staging39_rxon;
859 const struct iwl3945_rxon_cmd *rxon2 = &priv->active39_rxon;
861 if ((rxon1->flags == rxon2->flags) &&
862 (rxon1->filter_flags == rxon2->filter_flags) &&
863 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
864 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
865 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
869 rxon_assoc.flags = priv->staging39_rxon.flags;
870 rxon_assoc.filter_flags = priv->staging39_rxon.filter_flags;
871 rxon_assoc.ofdm_basic_rates = priv->staging39_rxon.ofdm_basic_rates;
872 rxon_assoc.cck_basic_rates = priv->staging39_rxon.cck_basic_rates;
873 rxon_assoc.reserved = 0;
875 rc = iwl3945_send_cmd_sync(priv, &cmd);
879 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
880 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
881 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
885 priv->alloc_rxb_skb--;
886 dev_kfree_skb_any(cmd.meta.u.skb);
892 * iwl3945_commit_rxon - commit staging_rxon to hardware
894 * The RXON command in staging_rxon is committed to the hardware and
895 * the active_rxon structure is updated with the new data. This
896 * function correctly transitions out of the RXON_ASSOC_MSK state if
897 * a HW tune is required based on the RXON structure changes.
899 static int iwl3945_commit_rxon(struct iwl_priv *priv)
901 /* cast away the const for active_rxon in this function */
902 struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active39_rxon;
905 if (!iwl_is_alive(priv))
908 /* always get timestamp with Rx frame */
909 priv->staging39_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
912 priv->staging39_rxon.flags &=
913 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
914 priv->staging39_rxon.flags |= iwl3945_get_antenna_flags(priv);
916 rc = iwl3945_check_rxon_cmd(priv);
918 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
922 /* If we don't need to send a full RXON, we can use
923 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
924 * and other flags for the current radio configuration. */
925 if (!iwl3945_full_rxon_required(priv)) {
926 rc = iwl3945_send_rxon_assoc(priv);
928 IWL_ERR(priv, "Error setting RXON_ASSOC "
929 "configuration (%d).\n", rc);
933 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
938 /* If we are currently associated and the new config requires
939 * an RXON_ASSOC and the new config wants the associated mask enabled,
940 * we must clear the associated from the active configuration
941 * before we apply the new config */
942 if (iwl3945_is_associated(priv) &&
943 (priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
944 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
945 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
947 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
948 sizeof(struct iwl3945_rxon_cmd),
949 &priv->active39_rxon);
951 /* If the mask clearing failed then we set
952 * active_rxon back to what it was previously */
954 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
955 IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
956 "configuration (%d).\n", rc);
961 IWL_DEBUG_INFO("Sending RXON\n"
962 "* with%s RXON_FILTER_ASSOC_MSK\n"
965 ((priv->staging39_rxon.filter_flags &
966 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
967 le16_to_cpu(priv->staging39_rxon.channel),
968 priv->staging_rxon.bssid_addr);
970 /* Apply the new configuration */
971 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
972 sizeof(struct iwl3945_rxon_cmd), &priv->staging39_rxon);
974 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
978 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
980 iwl3945_clear_stations_table(priv);
982 /* If we issue a new RXON command which required a tune then we must
983 * send a new TXPOWER command or we won't be able to Tx any frames */
984 rc = iwl3945_hw_reg_send_txpower(priv);
986 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
990 /* Add the broadcast address so we can send broadcast frames */
991 if (iwl3945_add_station(priv, iwl_bcast_addr, 0, 0) ==
992 IWL_INVALID_STATION) {
993 IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
997 /* If we have set the ASSOC_MSK and we are in BSS mode then
998 * add the IWL_AP_ID to the station rate table */
999 if (iwl3945_is_associated(priv) &&
1000 (priv->iw_mode == NL80211_IFTYPE_STATION))
1001 if (iwl3945_add_station(priv, priv->active39_rxon.bssid_addr, 1, 0)
1002 == IWL_INVALID_STATION) {
1003 IWL_ERR(priv, "Error adding AP address for transmit\n");
1007 /* Init the hardware's rate fallback order based on the band */
1008 rc = iwl3945_init_hw_rate_table(priv);
1010 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
1017 static int iwl3945_send_bt_config(struct iwl_priv *priv)
1019 struct iwl_bt_cmd bt_cmd = {
1027 return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG,
1028 sizeof(bt_cmd), &bt_cmd);
1031 static int iwl3945_send_scan_abort(struct iwl_priv *priv)
1034 struct iwl_rx_packet *res;
1035 struct iwl_host_cmd cmd = {
1036 .id = REPLY_SCAN_ABORT_CMD,
1037 .meta.flags = CMD_WANT_SKB,
1040 /* If there isn't a scan actively going on in the hardware
1041 * then we are in between scan bands and not actually
1042 * actively scanning, so don't send the abort command */
1043 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
1044 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1048 rc = iwl3945_send_cmd_sync(priv, &cmd);
1050 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1054 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1055 if (res->u.status != CAN_ABORT_STATUS) {
1056 /* The scan abort will return 1 for success or
1057 * 2 for "failure". A failure condition can be
1058 * due to simply not being in an active scan which
1059 * can occur if we send the scan abort before we
1060 * the microcode has notified us that a scan is
1062 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
1063 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1064 clear_bit(STATUS_SCAN_HW, &priv->status);
1067 dev_kfree_skb_any(cmd.meta.u.skb);
1072 static int iwl3945_add_sta_sync_callback(struct iwl_priv *priv,
1073 struct iwl_cmd *cmd, struct sk_buff *skb)
1075 struct iwl_rx_packet *res = NULL;
1078 IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
1082 res = (struct iwl_rx_packet *)skb->data;
1083 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1084 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1089 switch (res->u.add_sta.status) {
1090 case ADD_STA_SUCCESS_MSK:
1096 /* We didn't cache the SKB; let the caller free it */
1100 int iwl3945_send_add_station(struct iwl_priv *priv,
1101 struct iwl3945_addsta_cmd *sta, u8 flags)
1103 struct iwl_rx_packet *res = NULL;
1105 struct iwl_host_cmd cmd = {
1106 .id = REPLY_ADD_STA,
1107 .len = sizeof(struct iwl3945_addsta_cmd),
1108 .meta.flags = flags,
1112 if (flags & CMD_ASYNC)
1113 cmd.meta.u.callback = iwl3945_add_sta_sync_callback;
1115 cmd.meta.flags |= CMD_WANT_SKB;
1117 rc = iwl3945_send_cmd(priv, &cmd);
1119 if (rc || (flags & CMD_ASYNC))
1122 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1123 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1124 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1130 switch (res->u.add_sta.status) {
1131 case ADD_STA_SUCCESS_MSK:
1132 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1136 IWL_WARN(priv, "REPLY_ADD_STA failed\n");
1141 priv->alloc_rxb_skb--;
1142 dev_kfree_skb_any(cmd.meta.u.skb);
1147 static int iwl3945_update_sta_key_info(struct iwl_priv *priv,
1148 struct ieee80211_key_conf *keyconf,
1151 unsigned long flags;
1152 __le16 key_flags = 0;
1154 switch (keyconf->alg) {
1156 key_flags |= STA_KEY_FLG_CCMP;
1157 key_flags |= cpu_to_le16(
1158 keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
1159 key_flags &= ~STA_KEY_FLG_INVALID;
1166 spin_lock_irqsave(&priv->sta_lock, flags);
1167 priv->stations_39[sta_id].keyinfo.alg = keyconf->alg;
1168 priv->stations_39[sta_id].keyinfo.keylen = keyconf->keylen;
1169 memcpy(priv->stations_39[sta_id].keyinfo.key, keyconf->key,
1172 memcpy(priv->stations_39[sta_id].sta.key.key, keyconf->key,
1174 priv->stations_39[sta_id].sta.key.key_flags = key_flags;
1175 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1176 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1178 spin_unlock_irqrestore(&priv->sta_lock, flags);
1180 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1181 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
1185 static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
1187 unsigned long flags;
1189 spin_lock_irqsave(&priv->sta_lock, flags);
1190 memset(&priv->stations_39[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key));
1191 memset(&priv->stations_39[sta_id].sta.key, 0,
1192 sizeof(struct iwl4965_keyinfo));
1193 priv->stations_39[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
1194 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1195 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1196 spin_unlock_irqrestore(&priv->sta_lock, flags);
1198 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1199 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
1203 static void iwl3945_clear_free_frames(struct iwl_priv *priv)
1205 struct list_head *element;
1207 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1208 priv->frames_count);
1210 while (!list_empty(&priv->free_frames)) {
1211 element = priv->free_frames.next;
1213 kfree(list_entry(element, struct iwl3945_frame, list));
1214 priv->frames_count--;
1217 if (priv->frames_count) {
1218 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
1219 priv->frames_count);
1220 priv->frames_count = 0;
1224 static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
1226 struct iwl3945_frame *frame;
1227 struct list_head *element;
1228 if (list_empty(&priv->free_frames)) {
1229 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
1231 IWL_ERR(priv, "Could not allocate frame!\n");
1235 priv->frames_count++;
1239 element = priv->free_frames.next;
1241 return list_entry(element, struct iwl3945_frame, list);
1244 static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
1246 memset(frame, 0, sizeof(*frame));
1247 list_add(&frame->list, &priv->free_frames);
1250 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
1251 struct ieee80211_hdr *hdr,
1255 if (!iwl3945_is_associated(priv) || !priv->ibss_beacon ||
1256 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
1257 (priv->iw_mode != NL80211_IFTYPE_AP)))
1260 if (priv->ibss_beacon->len > left)
1263 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
1265 return priv->ibss_beacon->len;
1268 static u8 iwl3945_rate_get_lowest_plcp(struct iwl_priv *priv)
1274 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1275 rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
1277 rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
1279 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
1280 i = iwl3945_rates[i].next_ieee) {
1281 if (rate_mask & (1 << i))
1282 return iwl3945_rates[i].plcp;
1285 /* No valid rate was found. Assign the lowest one */
1286 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1287 return IWL_RATE_1M_PLCP;
1289 return IWL_RATE_6M_PLCP;
1292 static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
1294 struct iwl3945_frame *frame;
1295 unsigned int frame_size;
1299 frame = iwl3945_get_free_frame(priv);
1302 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
1307 rate = iwl3945_rate_get_lowest_plcp(priv);
1309 frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
1311 rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
1314 iwl3945_free_frame(priv, frame);
1319 /******************************************************************************
1321 * EEPROM related functions
1323 ******************************************************************************/
1325 static void get_eeprom_mac(struct iwl_priv *priv, u8 *mac)
1327 memcpy(mac, priv->eeprom39.mac_address, 6);
1331 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1332 * embedded controller) as EEPROM reader; each read is a series of pulses
1333 * to/from the EEPROM chip, not a single event, so even reads could conflict
1334 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1335 * simply claims ownership, which should be safe when this function is called
1336 * (i.e. before loading uCode!).
1338 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
1340 _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
1345 * iwl3945_eeprom_init - read EEPROM contents
1347 * Load the EEPROM contents from adapter into priv->eeprom39
1349 * NOTE: This routine uses the non-debug IO access functions.
1351 int iwl3945_eeprom_init(struct iwl_priv *priv)
1353 u16 *e = (u16 *)&priv->eeprom39;
1354 u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
1355 int sz = sizeof(priv->eeprom39);
1359 /* The EEPROM structure has several padding buffers within it
1360 * and when adding new EEPROM maps is subject to programmer errors
1361 * which may be very difficult to identify without explicitly
1362 * checking the resulting size of the eeprom map. */
1363 BUILD_BUG_ON(sizeof(priv->eeprom39) != IWL_EEPROM_IMAGE_SIZE);
1365 if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
1366 IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
1370 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1371 ret = iwl3945_eeprom_acquire_semaphore(priv);
1373 IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
1377 /* eeprom is an array of 16bit values */
1378 for (addr = 0; addr < sz; addr += sizeof(u16)) {
1381 _iwl_write32(priv, CSR_EEPROM_REG,
1382 CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
1383 _iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
1384 ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
1385 CSR_EEPROM_REG_READ_VALID_MSK,
1386 IWL_EEPROM_ACCESS_TIMEOUT);
1388 IWL_ERR(priv, "Time out reading EEPROM[%d]\n", addr);
1392 r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
1393 e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
1399 static void iwl3945_unset_hw_params(struct iwl_priv *priv)
1401 if (priv->shared_virt)
1402 pci_free_consistent(priv->pci_dev,
1403 sizeof(struct iwl3945_shared),
1409 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1411 * return : set the bit for each supported rate insert in ie
1413 static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate,
1414 u16 basic_rate, int *left)
1416 u16 ret_rates = 0, bit;
1421 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
1422 if (bit & supported_rate) {
1424 rates[*cnt] = iwl3945_rates[i].ieee |
1425 ((bit & basic_rate) ? 0x80 : 0x00);
1429 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
1438 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1440 static u16 iwl3945_fill_probe_req(struct iwl_priv *priv,
1441 struct ieee80211_mgmt *frame,
1446 u16 active_rates, ret_rates, cck_rates;
1448 /* Make sure there is enough space for the probe request,
1449 * two mandatory IEs and the data */
1455 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
1456 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
1457 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
1458 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
1459 frame->seq_ctrl = 0;
1461 /* fill in our indirect SSID IE */
1468 pos = &(frame->u.probe_req.variable[0]);
1469 *pos++ = WLAN_EID_SSID;
1472 /* fill in supported rate */
1478 /* ... fill it in... */
1479 *pos++ = WLAN_EID_SUPP_RATES;
1482 priv->active_rate = priv->rates_mask;
1483 active_rates = priv->active_rate;
1484 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
1486 cck_rates = IWL_CCK_RATES_MASK & active_rates;
1487 ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates,
1488 priv->active_rate_basic, &left);
1489 active_rates &= ~ret_rates;
1491 ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates,
1492 priv->active_rate_basic, &left);
1493 active_rates &= ~ret_rates;
1497 if (active_rates == 0)
1500 /* fill in supported extended rate */
1505 /* ... fill it in... */
1506 *pos++ = WLAN_EID_EXT_SUPP_RATES;
1508 iwl3945_supported_rate_to_ie(pos, active_rates,
1509 priv->active_rate_basic, &left);
1520 static int iwl3945_send_qos_params_command(struct iwl_priv *priv,
1521 struct iwl_qosparam_cmd *qos)
1524 return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM,
1525 sizeof(struct iwl_qosparam_cmd), qos);
1528 static void iwl3945_activate_qos(struct iwl_priv *priv, u8 force)
1530 unsigned long flags;
1532 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1535 spin_lock_irqsave(&priv->lock, flags);
1536 priv->qos_data.def_qos_parm.qos_flags = 0;
1538 if (priv->qos_data.qos_cap.q_AP.queue_request &&
1539 !priv->qos_data.qos_cap.q_AP.txop_request)
1540 priv->qos_data.def_qos_parm.qos_flags |=
1541 QOS_PARAM_FLG_TXOP_TYPE_MSK;
1543 if (priv->qos_data.qos_active)
1544 priv->qos_data.def_qos_parm.qos_flags |=
1545 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
1547 spin_unlock_irqrestore(&priv->lock, flags);
1549 if (force || iwl3945_is_associated(priv)) {
1550 IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n",
1551 priv->qos_data.qos_active);
1553 iwl3945_send_qos_params_command(priv,
1554 &(priv->qos_data.def_qos_parm));
1559 * Power management (not Tx power!) functions
1561 #define MSEC_TO_USEC 1024
1564 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1565 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1566 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1567 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1568 __constant_cpu_to_le32(X1), \
1569 __constant_cpu_to_le32(X2), \
1570 __constant_cpu_to_le32(X3), \
1571 __constant_cpu_to_le32(X4)}
1573 /* default power management (not Tx power) table values */
1575 static struct iwl_power_vec_entry range_0[IWL39_POWER_AC] = {
1576 {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1577 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1578 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1579 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1580 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1581 {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1585 static struct iwl_power_vec_entry range_1[IWL39_POWER_AC] = {
1586 {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1587 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1588 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1589 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1590 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1591 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1592 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1593 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1594 {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1595 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1598 int iwl3945_power_init_handle(struct iwl_priv *priv)
1601 struct iwl3945_power_mgr *pow_data;
1602 int size = sizeof(struct iwl_power_vec_entry) * IWL39_POWER_AC;
1605 IWL_DEBUG_POWER("Initialize power \n");
1607 pow_data = &(priv->power_data_39);
1609 memset(pow_data, 0, sizeof(*pow_data));
1611 pow_data->active_index = IWL_POWER_RANGE_0;
1612 pow_data->dtim_val = 0xffff;
1614 memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
1615 memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
1617 rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
1621 struct iwl_powertable_cmd *cmd;
1623 IWL_DEBUG_POWER("adjust power command flags\n");
1625 for (i = 0; i < IWL39_POWER_AC; i++) {
1626 cmd = &pow_data->pwr_range_0[i].cmd;
1629 cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
1631 cmd->flags |= IWL_POWER_PCI_PM_MSK;
1637 static int iwl3945_update_power_cmd(struct iwl_priv *priv,
1638 struct iwl_powertable_cmd *cmd, u32 mode)
1643 struct iwl_power_vec_entry *range;
1645 struct iwl3945_power_mgr *pow_data;
1647 if (mode > IWL_POWER_INDEX_5) {
1648 IWL_DEBUG_POWER("Error invalid power mode \n");
1651 pow_data = &(priv->power_data_39);
1653 if (pow_data->active_index == IWL_POWER_RANGE_0)
1654 range = &pow_data->pwr_range_0[0];
1656 range = &pow_data->pwr_range_1[1];
1658 memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd));
1660 #ifdef IWL_MAC80211_DISABLE
1661 if (priv->assoc_network != NULL) {
1662 unsigned long flags;
1664 period = priv->assoc_network->tim.tim_period;
1666 #endif /*IWL_MAC80211_DISABLE */
1667 skip = range[mode].no_dtim;
1676 cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
1678 __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
1679 max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
1680 cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
1683 for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
1684 if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
1685 cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
1688 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
1689 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
1690 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
1691 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1692 le32_to_cpu(cmd->sleep_interval[0]),
1693 le32_to_cpu(cmd->sleep_interval[1]),
1694 le32_to_cpu(cmd->sleep_interval[2]),
1695 le32_to_cpu(cmd->sleep_interval[3]),
1696 le32_to_cpu(cmd->sleep_interval[4]));
1701 static int iwl3945_send_power_mode(struct iwl_priv *priv, u32 mode)
1703 u32 uninitialized_var(final_mode);
1705 struct iwl_powertable_cmd cmd;
1707 /* If on battery, set to 3,
1708 * if plugged into AC power, set to CAM ("continuously aware mode"),
1709 * else user level */
1711 case IWL39_POWER_BATTERY:
1712 final_mode = IWL_POWER_INDEX_3;
1714 case IWL39_POWER_AC:
1715 final_mode = IWL_POWER_MODE_CAM;
1722 iwl3945_update_power_cmd(priv, &cmd, final_mode);
1724 /* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
1725 rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD,
1726 sizeof(struct iwl3945_powertable_cmd), &cmd);
1728 if (final_mode == IWL_POWER_MODE_CAM)
1729 clear_bit(STATUS_POWER_PMI, &priv->status);
1731 set_bit(STATUS_POWER_PMI, &priv->status);
1737 * iwl3945_scan_cancel - Cancel any currently executing HW scan
1739 * NOTE: priv->mutex is not required before calling this function
1741 static int iwl3945_scan_cancel(struct iwl_priv *priv)
1743 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
1744 clear_bit(STATUS_SCANNING, &priv->status);
1748 if (test_bit(STATUS_SCANNING, &priv->status)) {
1749 if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1750 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1751 set_bit(STATUS_SCAN_ABORTING, &priv->status);
1752 queue_work(priv->workqueue, &priv->abort_scan);
1755 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1757 return test_bit(STATUS_SCANNING, &priv->status);
1764 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
1765 * @ms: amount of time to wait (in milliseconds) for scan to abort
1767 * NOTE: priv->mutex must be held before calling this function
1769 static int iwl3945_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
1771 unsigned long now = jiffies;
1774 ret = iwl3945_scan_cancel(priv);
1776 mutex_unlock(&priv->mutex);
1777 while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
1778 test_bit(STATUS_SCANNING, &priv->status))
1780 mutex_lock(&priv->mutex);
1782 return test_bit(STATUS_SCANNING, &priv->status);
1788 #define MAX_UCODE_BEACON_INTERVAL 1024
1789 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1791 static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
1794 u16 beacon_factor = 0;
1797 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
1798 / MAX_UCODE_BEACON_INTERVAL;
1799 new_val = beacon_val / beacon_factor;
1801 return cpu_to_le16(new_val);
1804 static void iwl3945_setup_rxon_timing(struct iwl_priv *priv)
1806 u64 interval_tm_unit;
1808 unsigned long flags;
1809 struct ieee80211_conf *conf = NULL;
1812 conf = ieee80211_get_hw_conf(priv->hw);
1814 spin_lock_irqsave(&priv->lock, flags);
1815 priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
1816 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
1818 tsf = priv->timestamp;
1820 beacon_int = priv->beacon_int;
1821 spin_unlock_irqrestore(&priv->lock, flags);
1823 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
1824 if (beacon_int == 0) {
1825 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
1826 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
1828 priv->rxon_timing.beacon_interval =
1829 cpu_to_le16(beacon_int);
1830 priv->rxon_timing.beacon_interval =
1831 iwl3945_adjust_beacon_interval(
1832 le16_to_cpu(priv->rxon_timing.beacon_interval));
1835 priv->rxon_timing.atim_window = 0;
1837 priv->rxon_timing.beacon_interval =
1838 iwl3945_adjust_beacon_interval(conf->beacon_int);
1839 /* TODO: we need to get atim_window from upper stack
1840 * for now we set to 0 */
1841 priv->rxon_timing.atim_window = 0;
1845 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
1846 result = do_div(tsf, interval_tm_unit);
1847 priv->rxon_timing.beacon_init_val =
1848 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
1851 ("beacon interval %d beacon timer %d beacon tim %d\n",
1852 le16_to_cpu(priv->rxon_timing.beacon_interval),
1853 le32_to_cpu(priv->rxon_timing.beacon_init_val),
1854 le16_to_cpu(priv->rxon_timing.atim_window));
1857 static int iwl3945_scan_initiate(struct iwl_priv *priv)
1859 if (!iwl_is_ready_rf(priv)) {
1860 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1864 if (test_bit(STATUS_SCANNING, &priv->status)) {
1865 IWL_DEBUG_SCAN("Scan already in progress.\n");
1869 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1870 IWL_DEBUG_SCAN("Scan request while abort pending. "
1875 IWL_DEBUG_INFO("Starting scan...\n");
1876 if (priv->cfg->sku & IWL_SKU_G)
1877 priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ);
1878 if (priv->cfg->sku & IWL_SKU_A)
1879 priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ);
1880 set_bit(STATUS_SCANNING, &priv->status);
1881 priv->scan_start = jiffies;
1882 priv->scan_pass_start = priv->scan_start;
1884 queue_work(priv->workqueue, &priv->request_scan);
1889 static int iwl3945_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
1891 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
1894 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
1896 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
1901 static void iwl3945_set_flags_for_phymode(struct iwl_priv *priv,
1902 enum ieee80211_band band)
1904 if (band == IEEE80211_BAND_5GHZ) {
1905 priv->staging39_rxon.flags &=
1906 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1907 | RXON_FLG_CCK_MSK);
1908 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1910 /* Copied from iwl3945_bg_post_associate() */
1911 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1912 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1914 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1916 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1917 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1919 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1920 priv->staging39_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1921 priv->staging39_rxon.flags &= ~RXON_FLG_CCK_MSK;
1926 * initialize rxon structure with default values from eeprom
1928 static void iwl3945_connection_init_rx_config(struct iwl_priv *priv,
1931 const struct iwl_channel_info *ch_info;
1933 memset(&priv->staging39_rxon, 0, sizeof(priv->staging39_rxon));
1936 case NL80211_IFTYPE_AP:
1937 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_AP;
1940 case NL80211_IFTYPE_STATION:
1941 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_ESS;
1942 priv->staging39_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1945 case NL80211_IFTYPE_ADHOC:
1946 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1947 priv->staging39_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1948 priv->staging39_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1949 RXON_FILTER_ACCEPT_GRP_MSK;
1952 case NL80211_IFTYPE_MONITOR:
1953 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
1954 priv->staging39_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
1955 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
1958 IWL_ERR(priv, "Unsupported interface type %d\n", mode);
1963 /* TODO: Figure out when short_preamble would be set and cache from
1965 if (!hw_to_local(priv->hw)->short_preamble)
1966 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1968 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1971 ch_info = iwl3945_get_channel_info(priv, priv->band,
1972 le16_to_cpu(priv->active39_rxon.channel));
1975 ch_info = &priv->channel_info[0];
1978 * in some case A channels are all non IBSS
1979 * in this case force B/G channel
1981 if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info)))
1982 ch_info = &priv->channel_info[0];
1984 priv->staging39_rxon.channel = cpu_to_le16(ch_info->channel);
1985 if (is_channel_a_band(ch_info))
1986 priv->band = IEEE80211_BAND_5GHZ;
1988 priv->band = IEEE80211_BAND_2GHZ;
1990 iwl3945_set_flags_for_phymode(priv, priv->band);
1992 priv->staging39_rxon.ofdm_basic_rates =
1993 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1994 priv->staging39_rxon.cck_basic_rates =
1995 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1998 static int iwl3945_set_mode(struct iwl_priv *priv, int mode)
2000 if (mode == NL80211_IFTYPE_ADHOC) {
2001 const struct iwl_channel_info *ch_info;
2003 ch_info = iwl3945_get_channel_info(priv,
2005 le16_to_cpu(priv->staging39_rxon.channel));
2007 if (!ch_info || !is_channel_ibss(ch_info)) {
2008 IWL_ERR(priv, "channel %d not IBSS channel\n",
2009 le16_to_cpu(priv->staging39_rxon.channel));
2014 iwl3945_connection_init_rx_config(priv, mode);
2015 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2017 iwl3945_clear_stations_table(priv);
2019 /* don't commit rxon if rf-kill is on*/
2020 if (!iwl_is_ready_rf(priv))
2023 cancel_delayed_work(&priv->scan_check);
2024 if (iwl3945_scan_cancel_timeout(priv, 100)) {
2025 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
2026 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2030 iwl3945_commit_rxon(priv);
2035 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
2036 struct ieee80211_tx_info *info,
2037 struct iwl_cmd *cmd,
2038 struct sk_buff *skb_frag,
2041 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
2042 struct iwl3945_hw_key *keyinfo =
2043 &priv->stations_39[info->control.hw_key->hw_key_idx].keyinfo;
2045 switch (keyinfo->alg) {
2047 tx->sec_ctl = TX_CMD_SEC_CCM;
2048 memcpy(tx->key, keyinfo->key, keyinfo->keylen);
2049 IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
2054 tx->sec_ctl = TX_CMD_SEC_TKIP;
2057 memcpy(tx->tkip_mic.byte, skb_frag->tail - 8,
2060 memset(tx->tkip_mic.byte, 0, 8);
2065 tx->sec_ctl = TX_CMD_SEC_WEP |
2066 (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
2068 if (keyinfo->keylen == 13)
2069 tx->sec_ctl |= TX_CMD_SEC_KEY128;
2071 memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen);
2073 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2074 "with key %d\n", info->control.hw_key->hw_key_idx);
2078 IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
2084 * handle build REPLY_TX command notification.
2086 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
2087 struct iwl_cmd *cmd,
2088 struct ieee80211_tx_info *info,
2089 struct ieee80211_hdr *hdr, u8 std_id)
2091 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
2092 __le32 tx_flags = tx->tx_flags;
2093 __le16 fc = hdr->frame_control;
2094 u8 rc_flags = info->control.rates[0].flags;
2096 tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2097 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
2098 tx_flags |= TX_CMD_FLG_ACK_MSK;
2099 if (ieee80211_is_mgmt(fc))
2100 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2101 if (ieee80211_is_probe_resp(fc) &&
2102 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
2103 tx_flags |= TX_CMD_FLG_TSF_MSK;
2105 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
2106 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2109 tx->sta_id = std_id;
2110 if (ieee80211_has_morefrags(fc))
2111 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
2113 if (ieee80211_is_data_qos(fc)) {
2114 u8 *qc = ieee80211_get_qos_ctl(hdr);
2115 tx->tid_tspec = qc[0] & 0xf;
2116 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
2118 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2121 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
2122 tx_flags |= TX_CMD_FLG_RTS_MSK;
2123 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
2124 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
2125 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
2126 tx_flags |= TX_CMD_FLG_CTS_MSK;
2129 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
2130 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
2132 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
2133 if (ieee80211_is_mgmt(fc)) {
2134 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
2135 tx->timeout.pm_frame_timeout = cpu_to_le16(3);
2137 tx->timeout.pm_frame_timeout = cpu_to_le16(2);
2139 tx->timeout.pm_frame_timeout = 0;
2140 #ifdef CONFIG_IWL3945_LEDS
2141 priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
2145 tx->driver_txop = 0;
2146 tx->tx_flags = tx_flags;
2147 tx->next_frame_len = 0;
2151 * iwl3945_get_sta_id - Find station's index within station table
2153 static int iwl3945_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
2156 u16 fc = le16_to_cpu(hdr->frame_control);
2158 /* If this frame is broadcast or management, use broadcast station id */
2159 if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
2160 is_multicast_ether_addr(hdr->addr1))
2161 return priv->hw_params.bcast_sta_id;
2163 switch (priv->iw_mode) {
2165 /* If we are a client station in a BSS network, use the special
2166 * AP station entry (that's the only station we communicate with) */
2167 case NL80211_IFTYPE_STATION:
2170 /* If we are an AP, then find the station, or use BCAST */
2171 case NL80211_IFTYPE_AP:
2172 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
2173 if (sta_id != IWL_INVALID_STATION)
2175 return priv->hw_params.bcast_sta_id;
2177 /* If this frame is going out to an IBSS network, find the station,
2178 * or create a new station table entry */
2179 case NL80211_IFTYPE_ADHOC: {
2180 /* Create new station table entry */
2181 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
2182 if (sta_id != IWL_INVALID_STATION)
2185 sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
2187 if (sta_id != IWL_INVALID_STATION)
2190 IWL_DEBUG_DROP("Station %pM not in station map. "
2191 "Defaulting to broadcast...\n",
2193 iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
2194 return priv->hw_params.bcast_sta_id;
2196 /* If we are in monitor mode, use BCAST. This is required for
2197 * packet injection. */
2198 case NL80211_IFTYPE_MONITOR:
2199 return priv->hw_params.bcast_sta_id;
2202 IWL_WARN(priv, "Unknown mode of operation: %d\n",
2204 return priv->hw_params.bcast_sta_id;
2209 * start REPLY_TX command process
2211 static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
2213 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
2214 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2215 struct iwl3945_tfd *tfd;
2216 struct iwl3945_tx_cmd *tx;
2217 struct iwl_tx_queue *txq = NULL;
2218 struct iwl_queue *q = NULL;
2219 struct iwl_cmd *out_cmd = NULL;
2220 dma_addr_t phys_addr;
2221 dma_addr_t txcmd_phys;
2222 int txq_id = skb_get_queue_mapping(skb);
2223 u16 len, idx, len_org, hdr_len;
2230 u8 wait_write_ptr = 0;
2232 unsigned long flags;
2235 spin_lock_irqsave(&priv->lock, flags);
2236 if (iwl_is_rfkill(priv)) {
2237 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2241 if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
2242 IWL_ERR(priv, "ERROR: No TX rate available.\n");
2246 unicast = !is_multicast_ether_addr(hdr->addr1);
2249 fc = hdr->frame_control;
2251 #ifdef CONFIG_IWL3945_DEBUG
2252 if (ieee80211_is_auth(fc))
2253 IWL_DEBUG_TX("Sending AUTH frame\n");
2254 else if (ieee80211_is_assoc_req(fc))
2255 IWL_DEBUG_TX("Sending ASSOC frame\n");
2256 else if (ieee80211_is_reassoc_req(fc))
2257 IWL_DEBUG_TX("Sending REASSOC frame\n");
2260 /* drop all data frame if we are not associated */
2261 if (ieee80211_is_data(fc) &&
2262 (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */
2263 (!iwl3945_is_associated(priv) ||
2264 ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
2265 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2269 spin_unlock_irqrestore(&priv->lock, flags);
2271 hdr_len = ieee80211_hdrlen(fc);
2273 /* Find (or create) index into station table for destination station */
2274 sta_id = iwl3945_get_sta_id(priv, hdr);
2275 if (sta_id == IWL_INVALID_STATION) {
2276 IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
2281 IWL_DEBUG_RATE("station Id %d\n", sta_id);
2283 if (ieee80211_is_data_qos(fc)) {
2284 qc = ieee80211_get_qos_ctl(hdr);
2285 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
2286 seq_number = priv->stations_39[sta_id].tid[tid].seq_number &
2288 hdr->seq_ctrl = cpu_to_le16(seq_number) |
2290 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
2294 /* Descriptor for chosen Tx queue */
2295 txq = &priv->txq[txq_id];
2298 spin_lock_irqsave(&priv->lock, flags);
2300 /* Set up first empty TFD within this queue's circular TFD buffer */
2301 tfd = &txq->tfds39[q->write_ptr];
2302 memset(tfd, 0, sizeof(*tfd));
2303 idx = get_cmd_index(q, q->write_ptr, 0);
2305 /* Set up driver data for this TFD */
2306 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
2307 txq->txb[q->write_ptr].skb[0] = skb;
2309 /* Init first empty entry in queue's array of Tx/cmd buffers */
2310 out_cmd = txq->cmd[idx];
2311 tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
2312 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
2313 memset(tx, 0, sizeof(*tx));
2316 * Set up the Tx-command (not MAC!) header.
2317 * Store the chosen Tx queue and TFD index within the sequence field;
2318 * after Tx, uCode's Tx response will return this value so driver can
2319 * locate the frame within the tx queue and do post-tx processing.
2321 out_cmd->hdr.cmd = REPLY_TX;
2322 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
2323 INDEX_TO_SEQ(q->write_ptr)));
2325 /* Copy MAC header from skb into command buffer */
2326 memcpy(tx->hdr, hdr, hdr_len);
2329 * Use the first empty entry in this queue's command buffer array
2330 * to contain the Tx command and MAC header concatenated together
2331 * (payload data will be in another buffer).
2332 * Size of this varies, due to varying MAC header length.
2333 * If end is not dword aligned, we'll have 2 extra bytes at the end
2334 * of the MAC header (device reads on dword boundaries).
2335 * We'll tell device about this padding later.
2337 len = sizeof(struct iwl3945_tx_cmd) +
2338 sizeof(struct iwl_cmd_header) + hdr_len;
2341 len = (len + 3) & ~3;
2348 /* Physical address of this Tx command's header (not MAC header!),
2349 * within command buffer array. */
2350 txcmd_phys = pci_map_single(priv->pci_dev,
2351 out_cmd, sizeof(struct iwl_cmd),
2353 pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
2354 pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd));
2355 /* Add buffer containing Tx command and MAC(!) header to TFD's
2357 txcmd_phys += offsetof(struct iwl_cmd, hdr);
2359 /* Add buffer containing Tx command and MAC(!) header to TFD's
2361 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
2363 if (info->control.hw_key)
2364 iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0);
2366 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2367 * if any (802.11 null frames have no payload). */
2368 len = skb->len - hdr_len;
2370 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
2371 len, PCI_DMA_TODEVICE);
2372 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
2376 /* If there is no payload, then we use only one Tx buffer */
2377 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(1));
2379 /* Else use 2 buffers.
2380 * Tell 3945 about any padding after MAC header */
2381 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(2) |
2382 TFD_CTL_PAD_SET(U32_PAD(len)));
2384 /* Total # bytes to be transmitted */
2385 len = (u16)skb->len;
2386 tx->len = cpu_to_le16(len);
2388 /* TODO need this for burst mode later on */
2389 iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
2391 /* set is_hcca to 0; it probably will never be implemented */
2392 iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
2394 tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
2395 tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
2397 if (!ieee80211_has_morefrags(hdr->frame_control)) {
2398 txq->need_update = 1;
2400 priv->stations_39[sta_id].tid[tid].seq_number = seq_number;
2403 txq->need_update = 0;
2406 iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
2408 iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
2409 ieee80211_hdrlen(fc));
2411 /* Tell device the write index *just past* this latest filled TFD */
2412 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
2413 rc = iwl3945_tx_queue_update_write_ptr(priv, txq);
2414 spin_unlock_irqrestore(&priv->lock, flags);
2419 if ((iwl_queue_space(q) < q->high_mark)
2420 && priv->mac80211_registered) {
2421 if (wait_write_ptr) {
2422 spin_lock_irqsave(&priv->lock, flags);
2423 txq->need_update = 1;
2424 iwl3945_tx_queue_update_write_ptr(priv, txq);
2425 spin_unlock_irqrestore(&priv->lock, flags);
2428 ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
2434 spin_unlock_irqrestore(&priv->lock, flags);
2439 static void iwl3945_set_rate(struct iwl_priv *priv)
2441 const struct ieee80211_supported_band *sband = NULL;
2442 struct ieee80211_rate *rate;
2445 sband = iwl_get_hw_mode(priv, priv->band);
2447 IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
2451 priv->active_rate = 0;
2452 priv->active_rate_basic = 0;
2454 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2455 sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5");
2457 for (i = 0; i < sband->n_bitrates; i++) {
2458 rate = &sband->bitrates[i];
2459 if ((rate->hw_value < IWL_RATE_COUNT) &&
2460 !(rate->flags & IEEE80211_CHAN_DISABLED)) {
2461 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2462 rate->hw_value, iwl3945_rates[rate->hw_value].plcp);
2463 priv->active_rate |= (1 << rate->hw_value);
2467 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2468 priv->active_rate, priv->active_rate_basic);
2471 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2472 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2475 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
2476 priv->staging39_rxon.cck_basic_rates =
2477 ((priv->active_rate_basic &
2478 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
2480 priv->staging39_rxon.cck_basic_rates =
2481 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
2483 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
2484 priv->staging39_rxon.ofdm_basic_rates =
2485 ((priv->active_rate_basic &
2486 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
2487 IWL_FIRST_OFDM_RATE) & 0xFF;
2489 priv->staging39_rxon.ofdm_basic_rates =
2490 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2493 static void iwl3945_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
2495 unsigned long flags;
2497 if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
2500 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2501 disable_radio ? "OFF" : "ON");
2503 if (disable_radio) {
2504 iwl3945_scan_cancel(priv);
2505 /* FIXME: This is a workaround for AP */
2506 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2507 spin_lock_irqsave(&priv->lock, flags);
2508 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2509 CSR_UCODE_SW_BIT_RFKILL);
2510 spin_unlock_irqrestore(&priv->lock, flags);
2511 iwl_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
2512 set_bit(STATUS_RF_KILL_SW, &priv->status);
2517 spin_lock_irqsave(&priv->lock, flags);
2518 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2520 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2521 spin_unlock_irqrestore(&priv->lock, flags);
2526 spin_lock_irqsave(&priv->lock, flags);
2527 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2528 if (!iwl_grab_nic_access(priv))
2529 iwl_release_nic_access(priv);
2530 spin_unlock_irqrestore(&priv->lock, flags);
2532 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
2533 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2534 "disabled by HW switch\n");
2539 queue_work(priv->workqueue, &priv->restart);
2543 void iwl3945_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
2544 u32 decrypt_res, struct ieee80211_rx_status *stats)
2547 le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
2549 if (priv->active39_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
2552 if (!(fc & IEEE80211_FCTL_PROTECTED))
2555 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
2556 switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
2557 case RX_RES_STATUS_SEC_TYPE_TKIP:
2558 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2559 RX_RES_STATUS_BAD_ICV_MIC)
2560 stats->flag |= RX_FLAG_MMIC_ERROR;
2561 case RX_RES_STATUS_SEC_TYPE_WEP:
2562 case RX_RES_STATUS_SEC_TYPE_CCMP:
2563 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2564 RX_RES_STATUS_DECRYPT_OK) {
2565 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2566 stats->flag |= RX_FLAG_DECRYPTED;
2575 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2577 #include "iwl-spectrum.h"
2579 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2580 #define BEACON_TIME_MASK_HIGH 0xFF000000
2581 #define TIME_UNIT 1024
2584 * extended beacon time format
2585 * time in usec will be changed into a 32-bit value in 8:24 format
2586 * the high 1 byte is the beacon counts
2587 * the lower 3 bytes is the time in usec within one beacon interval
2590 static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
2594 u32 interval = beacon_interval * 1024;
2596 if (!interval || !usec)
2599 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
2600 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
2602 return (quot << 24) + rem;
2605 /* base is usually what we get from ucode with each received frame,
2606 * the same as HW timer counter counting down
2609 static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
2611 u32 base_low = base & BEACON_TIME_MASK_LOW;
2612 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
2613 u32 interval = beacon_interval * TIME_UNIT;
2614 u32 res = (base & BEACON_TIME_MASK_HIGH) +
2615 (addon & BEACON_TIME_MASK_HIGH);
2617 if (base_low > addon_low)
2618 res += base_low - addon_low;
2619 else if (base_low < addon_low) {
2620 res += interval + base_low - addon_low;
2625 return cpu_to_le32(res);
2628 static int iwl3945_get_measurement(struct iwl_priv *priv,
2629 struct ieee80211_measurement_params *params,
2632 struct iwl_spectrum_cmd spectrum;
2633 struct iwl_rx_packet *res;
2634 struct iwl_host_cmd cmd = {
2635 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
2636 .data = (void *)&spectrum,
2637 .meta.flags = CMD_WANT_SKB,
2639 u32 add_time = le64_to_cpu(params->start_time);
2641 int spectrum_resp_status;
2642 int duration = le16_to_cpu(params->duration);
2644 if (iwl3945_is_associated(priv))
2646 iwl3945_usecs_to_beacons(
2647 le64_to_cpu(params->start_time) - priv->last_tsf,
2648 le16_to_cpu(priv->rxon_timing.beacon_interval));
2650 memset(&spectrum, 0, sizeof(spectrum));
2652 spectrum.channel_count = cpu_to_le16(1);
2654 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
2655 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
2656 cmd.len = sizeof(spectrum);
2657 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
2659 if (iwl3945_is_associated(priv))
2660 spectrum.start_time =
2661 iwl3945_add_beacon_time(priv->last_beacon_time,
2663 le16_to_cpu(priv->rxon_timing.beacon_interval));
2665 spectrum.start_time = 0;
2667 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
2668 spectrum.channels[0].channel = params->channel;
2669 spectrum.channels[0].type = type;
2670 if (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK)
2671 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
2672 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
2674 rc = iwl3945_send_cmd_sync(priv, &cmd);
2678 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
2679 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
2680 IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
2684 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
2685 switch (spectrum_resp_status) {
2686 case 0: /* Command will be handled */
2687 if (res->u.spectrum.id != 0xff) {
2688 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2689 res->u.spectrum.id);
2690 priv->measurement_status &= ~MEASUREMENT_READY;
2692 priv->measurement_status |= MEASUREMENT_ACTIVE;
2696 case 1: /* Command will not be handled */
2701 dev_kfree_skb_any(cmd.meta.u.skb);
2707 static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
2708 struct iwl_rx_mem_buffer *rxb)
2710 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2711 struct iwl_alive_resp *palive;
2712 struct delayed_work *pwork;
2714 palive = &pkt->u.alive_frame;
2716 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2718 palive->is_valid, palive->ver_type,
2719 palive->ver_subtype);
2721 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
2722 IWL_DEBUG_INFO("Initialization Alive received.\n");
2723 memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
2724 sizeof(struct iwl_alive_resp));
2725 pwork = &priv->init_alive_start;
2727 IWL_DEBUG_INFO("Runtime Alive received.\n");
2728 memcpy(&priv->card_alive, &pkt->u.alive_frame,
2729 sizeof(struct iwl_alive_resp));
2730 pwork = &priv->alive_start;
2731 iwl3945_disable_events(priv);
2734 /* We delay the ALIVE response by 5ms to
2735 * give the HW RF Kill time to activate... */
2736 if (palive->is_valid == UCODE_VALID_OK)
2737 queue_delayed_work(priv->workqueue, pwork,
2738 msecs_to_jiffies(5));
2740 IWL_WARN(priv, "uCode did not respond OK.\n");
2743 static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
2744 struct iwl_rx_mem_buffer *rxb)
2746 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2748 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
2752 static void iwl3945_rx_reply_error(struct iwl_priv *priv,
2753 struct iwl_rx_mem_buffer *rxb)
2755 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2757 IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
2758 "seq 0x%04X ser 0x%08X\n",
2759 le32_to_cpu(pkt->u.err_resp.error_type),
2760 get_cmd_string(pkt->u.err_resp.cmd_id),
2761 pkt->u.err_resp.cmd_id,
2762 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2763 le32_to_cpu(pkt->u.err_resp.error_info));
2766 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2768 static void iwl3945_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
2770 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2771 struct iwl3945_rxon_cmd *rxon = (void *)&priv->active39_rxon;
2772 struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
2773 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2774 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
2775 rxon->channel = csa->channel;
2776 priv->staging39_rxon.channel = csa->channel;
2779 static void iwl3945_rx_spectrum_measure_notif(struct iwl_priv *priv,
2780 struct iwl_rx_mem_buffer *rxb)
2782 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2783 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2784 struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
2786 if (!report->state) {
2787 IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
2788 "Spectrum Measure Notification: Start\n");
2792 memcpy(&priv->measure_report, report, sizeof(*report));
2793 priv->measurement_status |= MEASUREMENT_READY;
2797 static void iwl3945_rx_pm_sleep_notif(struct iwl_priv *priv,
2798 struct iwl_rx_mem_buffer *rxb)
2800 #ifdef CONFIG_IWL3945_DEBUG
2801 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2802 struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
2803 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2804 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2808 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
2809 struct iwl_rx_mem_buffer *rxb)
2811 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2812 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2813 "notification for %s:\n",
2814 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
2815 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw,
2816 le32_to_cpu(pkt->len));
2819 static void iwl3945_bg_beacon_update(struct work_struct *work)
2821 struct iwl_priv *priv =
2822 container_of(work, struct iwl_priv, beacon_update);
2823 struct sk_buff *beacon;
2825 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2826 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
2829 IWL_ERR(priv, "update beacon failed\n");
2833 mutex_lock(&priv->mutex);
2834 /* new beacon skb is allocated every time; dispose previous.*/
2835 if (priv->ibss_beacon)
2836 dev_kfree_skb(priv->ibss_beacon);
2838 priv->ibss_beacon = beacon;
2839 mutex_unlock(&priv->mutex);
2841 iwl3945_send_beacon_cmd(priv);
2844 static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
2845 struct iwl_rx_mem_buffer *rxb)
2847 #ifdef CONFIG_IWL3945_DEBUG
2848 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2849 struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
2850 u8 rate = beacon->beacon_notify_hdr.rate;
2852 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2853 "tsf %d %d rate %d\n",
2854 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
2855 beacon->beacon_notify_hdr.failure_frame,
2856 le32_to_cpu(beacon->ibss_mgr_status),
2857 le32_to_cpu(beacon->high_tsf),
2858 le32_to_cpu(beacon->low_tsf), rate);
2861 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
2862 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
2863 queue_work(priv->workqueue, &priv->beacon_update);
2866 /* Service response to REPLY_SCAN_CMD (0x80) */
2867 static void iwl3945_rx_reply_scan(struct iwl_priv *priv,
2868 struct iwl_rx_mem_buffer *rxb)
2870 #ifdef CONFIG_IWL3945_DEBUG
2871 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2872 struct iwl_scanreq_notification *notif =
2873 (struct iwl_scanreq_notification *)pkt->u.raw;
2875 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
2879 /* Service SCAN_START_NOTIFICATION (0x82) */
2880 static void iwl3945_rx_scan_start_notif(struct iwl_priv *priv,
2881 struct iwl_rx_mem_buffer *rxb)
2883 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2884 struct iwl_scanstart_notification *notif =
2885 (struct iwl_scanstart_notification *)pkt->u.raw;
2886 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
2887 IWL_DEBUG_SCAN("Scan start: "
2889 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2891 notif->band ? "bg" : "a",
2893 notif->tsf_low, notif->status, notif->beacon_timer);
2896 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2897 static void iwl3945_rx_scan_results_notif(struct iwl_priv *priv,
2898 struct iwl_rx_mem_buffer *rxb)
2900 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2901 struct iwl_scanresults_notification *notif =
2902 (struct iwl_scanresults_notification *)pkt->u.raw;
2904 IWL_DEBUG_SCAN("Scan ch.res: "
2906 "(TSF: 0x%08X:%08X) - %d "
2907 "elapsed=%lu usec (%dms since last)\n",
2909 notif->band ? "bg" : "a",
2910 le32_to_cpu(notif->tsf_high),
2911 le32_to_cpu(notif->tsf_low),
2912 le32_to_cpu(notif->statistics[0]),
2913 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
2914 jiffies_to_msecs(elapsed_jiffies
2915 (priv->last_scan_jiffies, jiffies)));
2917 priv->last_scan_jiffies = jiffies;
2918 priv->next_scan_jiffies = 0;
2921 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2922 static void iwl3945_rx_scan_complete_notif(struct iwl_priv *priv,
2923 struct iwl_rx_mem_buffer *rxb)
2925 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2926 struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
2928 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2929 scan_notif->scanned_channels,
2930 scan_notif->tsf_low,
2931 scan_notif->tsf_high, scan_notif->status);
2933 /* The HW is no longer scanning */
2934 clear_bit(STATUS_SCAN_HW, &priv->status);
2936 /* The scan completion notification came in, so kill that timer... */
2937 cancel_delayed_work(&priv->scan_check);
2939 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2940 (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ?
2942 jiffies_to_msecs(elapsed_jiffies
2943 (priv->scan_pass_start, jiffies)));
2945 /* Remove this scanned band from the list of pending
2946 * bands to scan, band G precedes A in order of scanning
2947 * as seen in iwl3945_bg_request_scan */
2948 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ))
2949 priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ);
2950 else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ))
2951 priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ);
2953 /* If a request to abort was given, or the scan did not succeed
2954 * then we reset the scan state machine and terminate,
2955 * re-queuing another scan if one has been requested */
2956 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2957 IWL_DEBUG_INFO("Aborted scan completed.\n");
2958 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
2960 /* If there are more bands on this scan pass reschedule */
2961 if (priv->scan_bands > 0)
2965 priv->last_scan_jiffies = jiffies;
2966 priv->next_scan_jiffies = 0;
2967 IWL_DEBUG_INFO("Setting scan to off\n");
2969 clear_bit(STATUS_SCANNING, &priv->status);
2971 IWL_DEBUG_INFO("Scan took %dms\n",
2972 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
2974 queue_work(priv->workqueue, &priv->scan_completed);
2979 priv->scan_pass_start = jiffies;
2980 queue_work(priv->workqueue, &priv->request_scan);
2983 /* Handle notification from uCode that card's power state is changing
2984 * due to software, hardware, or critical temperature RFKILL */
2985 static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
2986 struct iwl_rx_mem_buffer *rxb)
2988 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2989 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
2990 unsigned long status = priv->status;
2992 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2993 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
2994 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
2996 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2997 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2999 if (flags & HW_CARD_DISABLED)
3000 set_bit(STATUS_RF_KILL_HW, &priv->status);
3002 clear_bit(STATUS_RF_KILL_HW, &priv->status);
3005 if (flags & SW_CARD_DISABLED)
3006 set_bit(STATUS_RF_KILL_SW, &priv->status);
3008 clear_bit(STATUS_RF_KILL_SW, &priv->status);
3010 iwl3945_scan_cancel(priv);
3012 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
3013 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
3014 (test_bit(STATUS_RF_KILL_SW, &status) !=
3015 test_bit(STATUS_RF_KILL_SW, &priv->status)))
3016 queue_work(priv->workqueue, &priv->rf_kill);
3018 wake_up_interruptible(&priv->wait_command_queue);
3022 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3024 * Setup the RX handlers for each of the reply types sent from the uCode
3027 * This function chains into the hardware specific files for them to setup
3028 * any hardware specific handlers as well.
3030 static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
3032 priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
3033 priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
3034 priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error;
3035 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa;
3036 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
3037 iwl3945_rx_spectrum_measure_notif;
3038 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif;
3039 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
3040 iwl3945_rx_pm_debug_statistics_notif;
3041 priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
3044 * The same handler is used for both the REPLY to a discrete
3045 * statistics request from the host as well as for the periodic
3046 * statistics notifications (after received beacons) from the uCode.
3048 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
3049 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
3051 priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan;
3052 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif;
3053 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
3054 iwl3945_rx_scan_results_notif;
3055 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
3056 iwl3945_rx_scan_complete_notif;
3057 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
3059 /* Set up hardware specific Rx handlers */
3060 iwl3945_hw_rx_handler_setup(priv);
3064 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3065 * When FW advances 'R' index, all entries between old and new 'R' index
3066 * need to be reclaimed.
3068 static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv,
3069 int txq_id, int index)
3071 struct iwl_tx_queue *txq = &priv->txq[txq_id];
3072 struct iwl_queue *q = &txq->q;
3075 if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
3076 IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
3077 "is out of range [0-%d] %d %d.\n", txq_id,
3078 index, q->n_bd, q->write_ptr, q->read_ptr);
3082 for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
3083 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
3085 IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", index,
3086 q->write_ptr, q->read_ptr);
3087 queue_work(priv->workqueue, &priv->restart);
3096 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3097 * @rxb: Rx buffer to reclaim
3099 * If an Rx buffer has an async callback associated with it the callback
3100 * will be executed. The attached skb (if present) will only be freed
3101 * if the callback returns 1
3103 static void iwl3945_tx_cmd_complete(struct iwl_priv *priv,
3104 struct iwl_rx_mem_buffer *rxb)
3106 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
3107 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
3108 int txq_id = SEQ_TO_QUEUE(sequence);
3109 int index = SEQ_TO_INDEX(sequence);
3110 int huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
3112 struct iwl_cmd *cmd;
3114 BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
3116 cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
3117 cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
3119 /* Input error checking is done when commands are added to queue. */
3120 if (cmd->meta.flags & CMD_WANT_SKB) {
3121 cmd->meta.source->u.skb = rxb->skb;
3123 } else if (cmd->meta.u.callback &&
3124 !cmd->meta.u.callback(priv, cmd, rxb->skb))
3127 iwl3945_cmd_queue_reclaim(priv, txq_id, index);
3129 if (!(cmd->meta.flags & CMD_ASYNC)) {
3130 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3131 wake_up_interruptible(&priv->wait_command_queue);
3135 /************************** RX-FUNCTIONS ****************************/
3137 * Rx theory of operation
3139 * The host allocates 32 DMA target addresses and passes the host address
3140 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3144 * The host/firmware share two index registers for managing the Rx buffers.
3146 * The READ index maps to the first position that the firmware may be writing
3147 * to -- the driver can read up to (but not including) this position and get
3149 * The READ index is managed by the firmware once the card is enabled.
3151 * The WRITE index maps to the last position the driver has read from -- the
3152 * position preceding WRITE is the last slot the firmware can place a packet.
3154 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3157 * During initialization, the host sets up the READ queue position to the first
3158 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3160 * When the firmware places a packet in a buffer, it will advance the READ index
3161 * and fire the RX interrupt. The driver can then query the READ index and
3162 * process as many packets as possible, moving the WRITE index forward as it
3163 * resets the Rx queue buffers with new memory.
3165 * The management in the driver is as follows:
3166 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3167 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3168 * to replenish the iwl->rxq->rx_free.
3169 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3170 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3171 * 'processed' and 'read' driver indexes as well)
3172 * + A received packet is processed and handed to the kernel network stack,
3173 * detached from the iwl->rxq. The driver 'processed' index is updated.
3174 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3175 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3176 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3177 * were enough free buffers and RX_STALLED is set it is cleared.
3182 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3183 * iwl3945_rx_queue_restock
3184 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3185 * queue, updates firmware pointers, and updates
3186 * the WRITE index. If insufficient rx_free buffers
3187 * are available, schedules iwl3945_rx_replenish
3189 * -- enable interrupts --
3190 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
3191 * READ INDEX, detaching the SKB from the pool.
3192 * Moves the packet buffer from queue to rx_used.
3193 * Calls iwl3945_rx_queue_restock to refill any empty
3200 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3202 static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
3203 dma_addr_t dma_addr)
3205 return cpu_to_le32((u32)dma_addr);
3209 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3211 * If there are slots in the RX queue that need to be restocked,
3212 * and we have free pre-allocated buffers, fill the ranks as much
3213 * as we can, pulling from rx_free.
3215 * This moves the 'write' index forward to catch up with 'processed', and
3216 * also updates the memory address in the firmware to reference the new
3219 static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
3221 struct iwl_rx_queue *rxq = &priv->rxq;
3222 struct list_head *element;
3223 struct iwl_rx_mem_buffer *rxb;
3224 unsigned long flags;
3227 spin_lock_irqsave(&rxq->lock, flags);
3228 write = rxq->write & ~0x7;
3229 while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
3230 /* Get next free Rx buffer, remove from free list */
3231 element = rxq->rx_free.next;
3232 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
3235 /* Point to Rx buffer via next RBD in circular buffer */
3236 rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
3237 rxq->queue[rxq->write] = rxb;
3238 rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
3241 spin_unlock_irqrestore(&rxq->lock, flags);
3242 /* If the pre-allocated buffer pool is dropping low, schedule to
3244 if (rxq->free_count <= RX_LOW_WATERMARK)
3245 queue_work(priv->workqueue, &priv->rx_replenish);
3248 /* If we've added more space for the firmware to place data, tell it.
3249 * Increment device's write pointer in multiples of 8. */
3250 if ((write != (rxq->write & ~0x7))
3251 || (abs(rxq->write - rxq->read) > 7)) {
3252 spin_lock_irqsave(&rxq->lock, flags);
3253 rxq->need_update = 1;
3254 spin_unlock_irqrestore(&rxq->lock, flags);
3255 rc = iwl_rx_queue_update_write_ptr(priv, rxq);
3264 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3266 * When moving to rx_free an SKB is allocated for the slot.
3268 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3269 * This is called as a scheduled work item (except for during initialization)
3271 static void iwl3945_rx_allocate(struct iwl_priv *priv)
3273 struct iwl_rx_queue *rxq = &priv->rxq;
3274 struct list_head *element;
3275 struct iwl_rx_mem_buffer *rxb;
3276 unsigned long flags;
3277 spin_lock_irqsave(&rxq->lock, flags);
3278 while (!list_empty(&rxq->rx_used)) {
3279 element = rxq->rx_used.next;
3280 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
3282 /* Alloc a new receive buffer */
3284 alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC);
3286 if (net_ratelimit())
3287 IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
3288 /* We don't reschedule replenish work here -- we will
3289 * call the restock method and if it still needs
3290 * more buffers it will schedule replenish */
3294 /* If radiotap head is required, reserve some headroom here.
3295 * The physical head count is a variable rx_stats->phy_count.
3296 * We reserve 4 bytes here. Plus these extra bytes, the
3297 * headroom of the physical head should be enough for the
3298 * radiotap head that iwl3945 supported. See iwl3945_rt.
3300 skb_reserve(rxb->skb, 4);
3302 priv->alloc_rxb_skb++;
3305 /* Get physical address of RB/SKB */
3306 rxb->real_dma_addr =
3307 pci_map_single(priv->pci_dev, rxb->skb->data,
3308 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3309 list_add_tail(&rxb->list, &rxq->rx_free);
3312 spin_unlock_irqrestore(&rxq->lock, flags);
3316 * this should be called while priv->lock is locked
3318 static void __iwl3945_rx_replenish(void *data)
3320 struct iwl_priv *priv = data;
3322 iwl3945_rx_allocate(priv);
3323 iwl3945_rx_queue_restock(priv);
3327 void iwl3945_rx_replenish(void *data)
3329 struct iwl_priv *priv = data;
3330 unsigned long flags;
3332 iwl3945_rx_allocate(priv);
3334 spin_lock_irqsave(&priv->lock, flags);
3335 iwl3945_rx_queue_restock(priv);
3336 spin_unlock_irqrestore(&priv->lock, flags);
3339 /* Convert linear signal-to-noise ratio into dB */
3340 static u8 ratio2dB[100] = {
3341 /* 0 1 2 3 4 5 6 7 8 9 */
3342 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3343 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3344 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3345 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3346 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3347 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3348 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3349 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3350 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3351 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3354 /* Calculates a relative dB value from a ratio of linear
3355 * (i.e. not dB) signal levels.
3356 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3357 int iwl3945_calc_db_from_ratio(int sig_ratio)
3359 /* 1000:1 or higher just report as 60 dB */
3360 if (sig_ratio >= 1000)
3363 /* 100:1 or higher, divide by 10 and use table,
3364 * add 20 dB to make up for divide by 10 */
3365 if (sig_ratio >= 100)
3366 return 20 + (int)ratio2dB[sig_ratio/10];
3368 /* We shouldn't see this */
3372 /* Use table for ratios 1:1 - 99:1 */
3373 return (int)ratio2dB[sig_ratio];
3376 #define PERFECT_RSSI (-20) /* dBm */
3377 #define WORST_RSSI (-95) /* dBm */
3378 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3380 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3381 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3382 * about formulas used below. */
3383 int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
3386 int degradation = PERFECT_RSSI - rssi_dbm;
3388 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3389 * as indicator; formula is (signal dbm - noise dbm).
3390 * SNR at or above 40 is a great signal (100%).
3391 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3392 * Weakest usable signal is usually 10 - 15 dB SNR. */
3394 if (rssi_dbm - noise_dbm >= 40)
3396 else if (rssi_dbm < noise_dbm)
3398 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
3400 /* Else use just the signal level.
3401 * This formula is a least squares fit of data points collected and
3402 * compared with a reference system that had a percentage (%) display
3403 * for signal quality. */
3405 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
3406 (15 * RSSI_RANGE + 62 * degradation)) /
3407 (RSSI_RANGE * RSSI_RANGE);
3411 else if (sig_qual < 1)
3418 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3420 * Uses the priv->rx_handlers callback function array to invoke
3421 * the appropriate handlers, including command responses,
3422 * frame-received notifications, and other notifications.
3424 static void iwl3945_rx_handle(struct iwl_priv *priv)
3426 struct iwl_rx_mem_buffer *rxb;
3427 struct iwl_rx_packet *pkt;
3428 struct iwl_rx_queue *rxq = &priv->rxq;
3431 unsigned long flags;
3435 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3436 * buffer that the driver may process (last buffer filled by ucode). */
3437 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
3440 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
3442 /* Rx interrupt, but nothing sent from uCode */
3444 IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
3447 rxb = rxq->queue[i];
3449 /* If an RXB doesn't have a Rx queue slot associated with it,
3450 * then a bug has been introduced in the queue refilling
3451 * routines -- catch it here */
3452 BUG_ON(rxb == NULL);
3454 rxq->queue[i] = NULL;
3456 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->real_dma_addr,
3458 PCI_DMA_FROMDEVICE);
3459 pkt = (struct iwl_rx_packet *)rxb->skb->data;
3461 /* Reclaim a command buffer only if this packet is a response
3462 * to a (driver-originated) command.
3463 * If the packet (e.g. Rx frame) originated from uCode,
3464 * there is no command buffer to reclaim.
3465 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3466 * but apparently a few don't get set; catch them here. */
3467 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
3468 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
3469 (pkt->hdr.cmd != REPLY_TX);
3471 /* Based on type of command response or notification,
3472 * handle those that need handling via function in
3473 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3474 if (priv->rx_handlers[pkt->hdr.cmd]) {
3475 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3476 "r = %d, i = %d, %s, 0x%02x\n", r, i,
3477 get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
3478 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
3480 /* No handling needed */
3481 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3482 "r %d i %d No handler needed for %s, 0x%02x\n",
3483 r, i, get_cmd_string(pkt->hdr.cmd),
3488 /* Invoke any callbacks, transfer the skb to caller, and
3489 * fire off the (possibly) blocking iwl3945_send_cmd()
3490 * as we reclaim the driver command queue */
3491 if (rxb && rxb->skb)
3492 iwl3945_tx_cmd_complete(priv, rxb);
3494 IWL_WARN(priv, "Claim null rxb?\n");
3497 /* For now we just don't re-use anything. We can tweak this
3498 * later to try and re-use notification packets and SKBs that
3499 * fail to Rx correctly */
3500 if (rxb->skb != NULL) {
3501 priv->alloc_rxb_skb--;
3502 dev_kfree_skb_any(rxb->skb);
3506 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
3507 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3508 spin_lock_irqsave(&rxq->lock, flags);
3509 list_add_tail(&rxb->list, &priv->rxq.rx_used);
3510 spin_unlock_irqrestore(&rxq->lock, flags);
3511 i = (i + 1) & RX_QUEUE_MASK;
3512 /* If there are a lot of unused frames,
3513 * restock the Rx queue so ucode won't assert. */
3518 __iwl3945_rx_replenish(priv);
3524 /* Backtrack one entry */
3526 iwl3945_rx_queue_restock(priv);
3530 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
3532 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
3533 struct iwl_tx_queue *txq)
3537 int txq_id = txq->q.id;
3539 if (txq->need_update == 0)
3542 /* if we're trying to save power */
3543 if (test_bit(STATUS_POWER_PMI, &priv->status)) {
3544 /* wake up nic if it's powered down ...
3545 * uCode will wake up, and interrupt us again, so next
3546 * time we'll skip this part. */
3547 reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
3549 if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
3550 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
3551 iwl_set_bit(priv, CSR_GP_CNTRL,
3552 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
3556 /* restore this queue's parameters in nic hardware. */
3557 rc = iwl_grab_nic_access(priv);
3560 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
3561 txq->q.write_ptr | (txq_id << 8));
3562 iwl_release_nic_access(priv);
3564 /* else not in power-save mode, uCode will never sleep when we're
3565 * trying to tx (during RFKILL, we're not trying to tx). */
3567 iwl_write32(priv, HBUS_TARG_WRPTR,
3568 txq->q.write_ptr | (txq_id << 8));
3570 txq->need_update = 0;
3575 #ifdef CONFIG_IWL3945_DEBUG
3576 static void iwl3945_print_rx_config_cmd(struct iwl_priv *priv,
3577 struct iwl3945_rxon_cmd *rxon)
3579 IWL_DEBUG_RADIO("RX CONFIG:\n");
3580 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
3581 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
3582 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
3583 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3584 le32_to_cpu(rxon->filter_flags));
3585 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
3586 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3587 rxon->ofdm_basic_rates);
3588 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
3589 IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr);
3590 IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
3591 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
3595 static void iwl3945_enable_interrupts(struct iwl_priv *priv)
3597 IWL_DEBUG_ISR("Enabling interrupts\n");
3598 set_bit(STATUS_INT_ENABLED, &priv->status);
3599 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
3603 /* call this function to flush any scheduled tasklet */
3604 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
3606 /* wait to make sure we flush pending tasklet*/
3607 synchronize_irq(priv->pci_dev->irq);
3608 tasklet_kill(&priv->irq_tasklet);
3612 static inline void iwl3945_disable_interrupts(struct iwl_priv *priv)
3614 clear_bit(STATUS_INT_ENABLED, &priv->status);
3616 /* disable interrupts from uCode/NIC to host */
3617 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
3619 /* acknowledge/clear/reset any interrupts still pending
3620 * from uCode or flow handler (Rx/Tx DMA) */
3621 iwl_write32(priv, CSR_INT, 0xffffffff);
3622 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
3623 IWL_DEBUG_ISR("Disabled interrupts\n");
3626 static const char *desc_lookup(int i)
3634 return "BAD_CHECKSUM";
3636 return "NMI_INTERRUPT";
3640 return "FATAL_ERROR";
3646 #define ERROR_START_OFFSET (1 * sizeof(u32))
3647 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3649 static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
3652 u32 desc, time, count, base, data1;
3653 u32 blink1, blink2, ilink1, ilink2;
3656 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
3658 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3659 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
3663 rc = iwl_grab_nic_access(priv);
3665 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3669 count = iwl_read_targ_mem(priv, base);
3671 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
3672 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
3673 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
3674 priv->status, count);
3677 IWL_ERR(priv, "Desc Time asrtPC blink2 "
3678 "ilink1 nmiPC Line\n");
3679 for (i = ERROR_START_OFFSET;
3680 i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
3681 i += ERROR_ELEM_SIZE) {
3682 desc = iwl_read_targ_mem(priv, base + i);
3684 iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
3686 iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
3688 iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
3690 iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
3692 iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
3694 iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
3697 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
3698 desc_lookup(desc), desc, time, blink1, blink2,
3699 ilink1, ilink2, data1);
3702 iwl_release_nic_access(priv);
3706 #define EVENT_START_OFFSET (6 * sizeof(u32))
3709 * iwl3945_print_event_log - Dump error event log to syslog
3711 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3713 static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
3714 u32 num_events, u32 mode)
3717 u32 base; /* SRAM byte address of event log header */
3718 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
3719 u32 ptr; /* SRAM byte address of log data */
3720 u32 ev, time, data; /* event log data */
3722 if (num_events == 0)
3725 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3728 event_size = 2 * sizeof(u32);
3730 event_size = 3 * sizeof(u32);
3732 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
3734 /* "time" is actually "data" for mode 0 (no timestamp).
3735 * place event id # at far right for easier visual parsing. */
3736 for (i = 0; i < num_events; i++) {
3737 ev = iwl_read_targ_mem(priv, ptr);
3739 time = iwl_read_targ_mem(priv, ptr);
3743 IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
3745 data = iwl_read_targ_mem(priv, ptr);
3747 IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
3752 static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
3755 u32 base; /* SRAM byte address of event log header */
3756 u32 capacity; /* event log capacity in # entries */
3757 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
3758 u32 num_wraps; /* # times uCode wrapped to top of log */
3759 u32 next_entry; /* index of next entry to be written by uCode */
3760 u32 size; /* # entries that we'll print */
3762 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3763 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3764 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
3768 rc = iwl_grab_nic_access(priv);
3770 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3774 /* event log header */
3775 capacity = iwl_read_targ_mem(priv, base);
3776 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
3777 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
3778 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
3780 size = num_wraps ? capacity : next_entry;
3782 /* bail out if nothing in log */
3784 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
3785 iwl_release_nic_access(priv);
3789 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
3792 /* if uCode has wrapped back to top of log, start at the oldest entry,
3793 * i.e the next one that uCode would fill. */
3795 iwl3945_print_event_log(priv, next_entry,
3796 capacity - next_entry, mode);
3798 /* (then/else) start at top of log */
3799 iwl3945_print_event_log(priv, 0, next_entry, mode);
3801 iwl_release_nic_access(priv);
3805 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
3807 static void iwl3945_irq_handle_error(struct iwl_priv *priv)
3809 /* Set the FW error flag -- cleared on iwl3945_down */
3810 set_bit(STATUS_FW_ERROR, &priv->status);
3812 /* Cancel currently queued command. */
3813 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3815 #ifdef CONFIG_IWL3945_DEBUG
3816 if (priv->debug_level & IWL_DL_FW_ERRORS) {
3817 iwl3945_dump_nic_error_log(priv);
3818 iwl3945_dump_nic_event_log(priv);
3819 iwl3945_print_rx_config_cmd(priv, &priv->staging39_rxon);
3823 wake_up_interruptible(&priv->wait_command_queue);
3825 /* Keep the restart process from trying to send host
3826 * commands by clearing the INIT status bit */
3827 clear_bit(STATUS_READY, &priv->status);
3829 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3830 IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
3831 "Restarting adapter due to uCode error.\n");
3833 if (iwl3945_is_associated(priv)) {
3834 memcpy(&priv->recovery39_rxon, &priv->active39_rxon,
3835 sizeof(priv->recovery39_rxon));
3836 priv->error_recovering = 1;
3838 queue_work(priv->workqueue, &priv->restart);
3842 static void iwl3945_error_recovery(struct iwl_priv *priv)
3844 unsigned long flags;
3846 memcpy(&priv->staging39_rxon, &priv->recovery39_rxon,
3847 sizeof(priv->staging39_rxon));
3848 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3849 iwl3945_commit_rxon(priv);
3851 iwl3945_add_station(priv, priv->bssid, 1, 0);
3853 spin_lock_irqsave(&priv->lock, flags);
3854 priv->assoc_id = le16_to_cpu(priv->staging39_rxon.assoc_id);
3855 priv->error_recovering = 0;
3856 spin_unlock_irqrestore(&priv->lock, flags);
3859 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
3861 u32 inta, handled = 0;
3863 unsigned long flags;
3864 #ifdef CONFIG_IWL3945_DEBUG
3868 spin_lock_irqsave(&priv->lock, flags);
3870 /* Ack/clear/reset pending uCode interrupts.
3871 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
3872 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
3873 inta = iwl_read32(priv, CSR_INT);
3874 iwl_write32(priv, CSR_INT, inta);
3876 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
3877 * Any new interrupts that happen after this, either while we're
3878 * in this tasklet, or later, will show up in next ISR/tasklet. */
3879 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3880 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
3882 #ifdef CONFIG_IWL3945_DEBUG
3883 if (priv->debug_level & IWL_DL_ISR) {
3884 /* just for debug */
3885 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3886 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3887 inta, inta_mask, inta_fh);
3891 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
3892 * atomic, make sure that inta covers all the interrupts that
3893 * we've discovered, even if FH interrupt came in just after
3894 * reading CSR_INT. */
3895 if (inta_fh & CSR39_FH_INT_RX_MASK)
3896 inta |= CSR_INT_BIT_FH_RX;
3897 if (inta_fh & CSR39_FH_INT_TX_MASK)
3898 inta |= CSR_INT_BIT_FH_TX;
3900 /* Now service all interrupt bits discovered above. */
3901 if (inta & CSR_INT_BIT_HW_ERR) {
3902 IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
3904 /* Tell the device to stop sending interrupts */
3905 iwl3945_disable_interrupts(priv);
3907 iwl3945_irq_handle_error(priv);
3909 handled |= CSR_INT_BIT_HW_ERR;
3911 spin_unlock_irqrestore(&priv->lock, flags);
3916 #ifdef CONFIG_IWL3945_DEBUG
3917 if (priv->debug_level & (IWL_DL_ISR)) {
3918 /* NIC fires this, but we don't use it, redundant with WAKEUP */
3919 if (inta & CSR_INT_BIT_SCD)
3920 IWL_DEBUG_ISR("Scheduler finished to transmit "
3921 "the frame/frames.\n");
3923 /* Alive notification via Rx interrupt will do the real work */
3924 if (inta & CSR_INT_BIT_ALIVE)
3925 IWL_DEBUG_ISR("Alive interrupt\n");
3928 /* Safely ignore these bits for debug checks below */
3929 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
3931 /* Error detected by uCode */
3932 if (inta & CSR_INT_BIT_SW_ERR) {
3933 IWL_ERR(priv, "Microcode SW error detected. "
3934 "Restarting 0x%X.\n", inta);
3935 iwl3945_irq_handle_error(priv);
3936 handled |= CSR_INT_BIT_SW_ERR;
3939 /* uCode wakes up after power-down sleep */
3940 if (inta & CSR_INT_BIT_WAKEUP) {
3941 IWL_DEBUG_ISR("Wakeup interrupt\n");
3942 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
3943 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]);
3944 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]);
3945 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]);
3946 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]);
3947 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]);
3948 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]);
3950 handled |= CSR_INT_BIT_WAKEUP;
3953 /* All uCode command responses, including Tx command responses,
3954 * Rx "responses" (frame-received notification), and other
3955 * notifications from uCode come through here*/
3956 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
3957 iwl3945_rx_handle(priv);
3958 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
3961 if (inta & CSR_INT_BIT_FH_TX) {
3962 IWL_DEBUG_ISR("Tx interrupt\n");
3964 iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
3965 if (!iwl_grab_nic_access(priv)) {
3966 iwl_write_direct32(priv, FH39_TCSR_CREDIT
3967 (FH39_SRVC_CHNL), 0x0);
3968 iwl_release_nic_access(priv);
3970 handled |= CSR_INT_BIT_FH_TX;
3973 if (inta & ~handled)
3974 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
3976 if (inta & ~CSR_INI_SET_MASK) {
3977 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
3978 inta & ~CSR_INI_SET_MASK);
3979 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
3982 /* Re-enable all interrupts */
3983 /* only Re-enable if disabled by irq */
3984 if (test_bit(STATUS_INT_ENABLED, &priv->status))
3985 iwl3945_enable_interrupts(priv);
3987 #ifdef CONFIG_IWL3945_DEBUG
3988 if (priv->debug_level & (IWL_DL_ISR)) {
3989 inta = iwl_read32(priv, CSR_INT);
3990 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3991 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3992 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
3993 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
3996 spin_unlock_irqrestore(&priv->lock, flags);
3999 static irqreturn_t iwl3945_isr(int irq, void *data)
4001 struct iwl_priv *priv = data;
4002 u32 inta, inta_mask;
4007 spin_lock(&priv->lock);
4009 /* Disable (but don't clear!) interrupts here to avoid
4010 * back-to-back ISRs and sporadic interrupts from our NIC.
4011 * If we have something to service, the tasklet will re-enable ints.
4012 * If we *don't* have something, we'll re-enable before leaving here. */
4013 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
4014 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
4016 /* Discover which interrupts are active/pending */
4017 inta = iwl_read32(priv, CSR_INT);
4018 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
4020 /* Ignore interrupt if there's nothing in NIC to service.
4021 * This may be due to IRQ shared with another device,
4022 * or due to sporadic interrupts thrown from our NIC. */
4023 if (!inta && !inta_fh) {
4024 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4028 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
4029 /* Hardware disappeared */
4030 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
4034 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4035 inta, inta_mask, inta_fh);
4037 inta &= ~CSR_INT_BIT_SCD;
4039 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4040 if (likely(inta || inta_fh))
4041 tasklet_schedule(&priv->irq_tasklet);
4043 spin_unlock(&priv->lock);
4048 /* re-enable interrupts here since we don't have anything to service. */
4049 /* only Re-enable if disabled by irq */
4050 if (test_bit(STATUS_INT_ENABLED, &priv->status))
4051 iwl3945_enable_interrupts(priv);
4052 spin_unlock(&priv->lock);
4056 /************************** EEPROM BANDS ****************************
4058 * The iwl3945_eeprom_band definitions below provide the mapping from the
4059 * EEPROM contents to the specific channel number supported for each
4062 * For example, iwl3945_priv->eeprom39.band_3_channels[4] from the band_3
4063 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4064 * The specific geography and calibration information for that channel
4065 * is contained in the eeprom map itself.
4067 * During init, we copy the eeprom information and channel map
4068 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4070 * channel_map_24/52 provides the index in the channel_info array for a
4071 * given channel. We have to have two separate maps as there is channel
4072 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4075 * A value of 0xff stored in the channel_map indicates that the channel
4076 * is not supported by the hardware at all.
4078 * A value of 0xfe in the channel_map indicates that the channel is not
4079 * valid for Tx with the current hardware. This means that
4080 * while the system can tune and receive on a given channel, it may not
4081 * be able to associate or transmit any frames on that
4082 * channel. There is no corresponding channel information for that
4085 *********************************************************************/
4088 static const u8 iwl3945_eeprom_band_1[14] = {
4089 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4093 static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */
4094 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4097 static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */
4098 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4101 static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */
4102 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4105 static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */
4106 145, 149, 153, 157, 161, 165
4109 static void iwl3945_init_band_reference(const struct iwl_priv *priv, int band,
4110 int *eeprom_ch_count,
4111 const struct iwl_eeprom_channel
4113 const u8 **eeprom_ch_index)
4116 case 1: /* 2.4GHz band */
4117 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1);
4118 *eeprom_ch_info = priv->eeprom39.band_1_channels;
4119 *eeprom_ch_index = iwl3945_eeprom_band_1;
4121 case 2: /* 4.9GHz band */
4122 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2);
4123 *eeprom_ch_info = priv->eeprom39.band_2_channels;
4124 *eeprom_ch_index = iwl3945_eeprom_band_2;
4126 case 3: /* 5.2GHz band */
4127 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3);
4128 *eeprom_ch_info = priv->eeprom39.band_3_channels;
4129 *eeprom_ch_index = iwl3945_eeprom_band_3;
4131 case 4: /* 5.5GHz band */
4132 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4);
4133 *eeprom_ch_info = priv->eeprom39.band_4_channels;
4134 *eeprom_ch_index = iwl3945_eeprom_band_4;
4136 case 5: /* 5.7GHz band */
4137 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5);
4138 *eeprom_ch_info = priv->eeprom39.band_5_channels;
4139 *eeprom_ch_index = iwl3945_eeprom_band_5;
4148 * iwl3945_get_channel_info - Find driver's private channel info
4150 * Based on band and channel number.
4152 const struct iwl_channel_info *
4153 iwl3945_get_channel_info(const struct iwl_priv *priv,
4154 enum ieee80211_band band, u16 channel)
4159 case IEEE80211_BAND_5GHZ:
4160 for (i = 14; i < priv->channel_count; i++) {
4161 if (priv->channel_info[i].channel == channel)
4162 return &priv->channel_info[i];
4166 case IEEE80211_BAND_2GHZ:
4167 if (channel >= 1 && channel <= 14)
4168 return &priv->channel_info[channel - 1];
4170 case IEEE80211_NUM_BANDS:
4177 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4181 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4183 static int iwl3945_init_channel_map(struct iwl_priv *priv)
4185 int eeprom_ch_count = 0;
4186 const u8 *eeprom_ch_index = NULL;
4187 const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
4189 struct iwl_channel_info *ch_info;
4191 if (priv->channel_count) {
4192 IWL_DEBUG_INFO("Channel map already initialized.\n");
4196 if (priv->eeprom39.version < 0x2f) {
4197 IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
4198 priv->eeprom39.version);
4202 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4204 priv->channel_count =
4205 ARRAY_SIZE(iwl3945_eeprom_band_1) +
4206 ARRAY_SIZE(iwl3945_eeprom_band_2) +
4207 ARRAY_SIZE(iwl3945_eeprom_band_3) +
4208 ARRAY_SIZE(iwl3945_eeprom_band_4) +
4209 ARRAY_SIZE(iwl3945_eeprom_band_5);
4211 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
4213 priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
4214 priv->channel_count, GFP_KERNEL);
4215 if (!priv->channel_info) {
4216 IWL_ERR(priv, "Could not allocate channel_info\n");
4217 priv->channel_count = 0;
4221 ch_info = priv->channel_info;
4223 /* Loop through the 5 EEPROM bands adding them in order to the
4224 * channel map we maintain (that contains additional information than
4225 * what just in the EEPROM) */
4226 for (band = 1; band <= 5; band++) {
4228 iwl3945_init_band_reference(priv, band, &eeprom_ch_count,
4229 &eeprom_ch_info, &eeprom_ch_index);
4231 /* Loop through each band adding each of the channels */
4232 for (ch = 0; ch < eeprom_ch_count; ch++) {
4233 ch_info->channel = eeprom_ch_index[ch];
4234 ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
4235 IEEE80211_BAND_5GHZ;
4237 /* permanently store EEPROM's channel regulatory flags
4238 * and max power in channel info database. */
4239 ch_info->eeprom = eeprom_ch_info[ch];
4241 /* Copy the run-time flags so they are there even on
4242 * invalid channels */
4243 ch_info->flags = eeprom_ch_info[ch].flags;
4245 if (!(is_channel_valid(ch_info))) {
4246 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4250 is_channel_a_band(ch_info) ?
4256 /* Initialize regulatory-based run-time data */
4257 ch_info->max_power_avg = ch_info->curr_txpow =
4258 eeprom_ch_info[ch].max_power_avg;
4259 ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
4260 ch_info->min_power = 0;
4262 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4263 " %ddBm): Ad-Hoc %ssupported\n",
4265 is_channel_a_band(ch_info) ?
4267 CHECK_AND_PRINT(VALID),
4268 CHECK_AND_PRINT(IBSS),
4269 CHECK_AND_PRINT(ACTIVE),
4270 CHECK_AND_PRINT(RADAR),
4271 CHECK_AND_PRINT(WIDE),
4272 CHECK_AND_PRINT(DFS),
4273 eeprom_ch_info[ch].flags,
4274 eeprom_ch_info[ch].max_power_avg,
4275 ((eeprom_ch_info[ch].
4276 flags & EEPROM_CHANNEL_IBSS)
4277 && !(eeprom_ch_info[ch].
4278 flags & EEPROM_CHANNEL_RADAR))
4281 /* Set the user_txpower_limit to the highest power
4282 * supported by any channel */
4283 if (eeprom_ch_info[ch].max_power_avg >
4284 priv->user_txpower_limit)
4285 priv->user_txpower_limit =
4286 eeprom_ch_info[ch].max_power_avg;
4292 /* Set up txpower settings in driver for all channels */
4293 if (iwl3945_txpower_set_from_eeprom(priv))
4300 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4302 static void iwl3945_free_channel_map(struct iwl_priv *priv)
4304 kfree(priv->channel_info);
4305 priv->channel_count = 0;
4308 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4309 * sending probe req. This should be set long enough to hear probe responses
4310 * from more than one AP. */
4311 #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
4312 #define IWL_ACTIVE_DWELL_TIME_52 (20)
4314 #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
4315 #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
4317 /* For faster active scanning, scan will move to the next channel if fewer than
4318 * PLCP_QUIET_THRESH packets are heard on this channel within
4319 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4320 * time if it's a quiet channel (nothing responded to our probe, and there's
4321 * no other traffic).
4322 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4323 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4324 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
4326 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4327 * Must be set longer than active dwell time.
4328 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4329 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4330 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4331 #define IWL_PASSIVE_DWELL_BASE (100)
4332 #define IWL_CHANNEL_TUNE_TIME 5
4334 #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1)))
4336 static inline u16 iwl3945_get_active_dwell_time(struct iwl_priv *priv,
4337 enum ieee80211_band band,
4340 if (band == IEEE80211_BAND_5GHZ)
4341 return IWL_ACTIVE_DWELL_TIME_52 +
4342 IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
4344 return IWL_ACTIVE_DWELL_TIME_24 +
4345 IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
4348 static u16 iwl3945_get_passive_dwell_time(struct iwl_priv *priv,
4349 enum ieee80211_band band)
4351 u16 passive = (band == IEEE80211_BAND_2GHZ) ?
4352 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
4353 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
4355 if (iwl3945_is_associated(priv)) {
4356 /* If we're associated, we clamp the maximum passive
4357 * dwell time to be 98% of the beacon interval (minus
4358 * 2 * channel tune time) */
4359 passive = priv->beacon_int;
4360 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
4361 passive = IWL_PASSIVE_DWELL_BASE;
4362 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
4368 static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
4369 enum ieee80211_band band,
4370 u8 is_active, u8 n_probes,
4371 struct iwl3945_scan_channel *scan_ch)
4373 const struct ieee80211_channel *channels = NULL;
4374 const struct ieee80211_supported_band *sband;
4375 const struct iwl_channel_info *ch_info;
4376 u16 passive_dwell = 0;
4377 u16 active_dwell = 0;
4380 sband = iwl_get_hw_mode(priv, band);
4384 channels = sband->channels;
4386 active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes);
4387 passive_dwell = iwl3945_get_passive_dwell_time(priv, band);
4389 if (passive_dwell <= active_dwell)
4390 passive_dwell = active_dwell + 1;
4392 for (i = 0, added = 0; i < sband->n_channels; i++) {
4393 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
4396 scan_ch->channel = channels[i].hw_value;
4398 ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel);
4399 if (!is_channel_valid(ch_info)) {
4400 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4405 scan_ch->active_dwell = cpu_to_le16(active_dwell);
4406 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
4407 /* If passive , set up for auto-switch
4408 * and use long active_dwell time.
4410 if (!is_active || is_channel_passive(ch_info) ||
4411 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
4412 scan_ch->type = 0; /* passive */
4413 if (IWL_UCODE_API(priv->ucode_ver) == 1)
4414 scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
4416 scan_ch->type = 1; /* active */
4419 /* Set direct probe bits. These may be used both for active
4420 * scan channels (probes gets sent right away),
4421 * or for passive channels (probes get se sent only after
4422 * hearing clear Rx packet).*/
4423 if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
4425 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4427 /* uCode v1 does not allow setting direct probe bits on
4428 * passive channel. */
4429 if ((scan_ch->type & 1) && n_probes)
4430 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4433 /* Set txpower levels to defaults */
4434 scan_ch->tpc.dsp_atten = 110;
4435 /* scan_pwr_info->tpc.dsp_atten; */
4437 /*scan_pwr_info->tpc.tx_gain; */
4438 if (band == IEEE80211_BAND_5GHZ)
4439 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
4441 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
4442 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4444 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4448 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4450 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
4451 (scan_ch->type & 1) ?
4452 active_dwell : passive_dwell);
4458 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
4462 static void iwl3945_init_hw_rates(struct iwl_priv *priv,
4463 struct ieee80211_rate *rates)
4467 for (i = 0; i < IWL_RATE_COUNT; i++) {
4468 rates[i].bitrate = iwl3945_rates[i].ieee * 5;
4469 rates[i].hw_value = i; /* Rate scaling will work on indexes */
4470 rates[i].hw_value_short = i;
4472 if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
4474 * If CCK != 1M then set short preamble rate flag.
4476 rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
4477 0 : IEEE80211_RATE_SHORT_PREAMBLE;
4483 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4485 static int iwl3945_init_geos(struct iwl_priv *priv)
4487 struct iwl_channel_info *ch;
4488 struct ieee80211_supported_band *sband;
4489 struct ieee80211_channel *channels;
4490 struct ieee80211_channel *geo_ch;
4491 struct ieee80211_rate *rates;
4494 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
4495 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
4496 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4497 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4501 channels = kzalloc(sizeof(struct ieee80211_channel) *
4502 priv->channel_count, GFP_KERNEL);
4506 rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
4513 /* 5.2GHz channels start after the 2.4GHz channels */
4514 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4515 sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)];
4517 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
4518 sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
4520 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4521 sband->channels = channels;
4523 sband->bitrates = rates;
4524 sband->n_bitrates = IWL_RATE_COUNT;
4526 priv->ieee_channels = channels;
4527 priv->ieee_rates = rates;
4529 iwl3945_init_hw_rates(priv, rates);
4531 for (i = 0; i < priv->channel_count; i++) {
4532 ch = &priv->channel_info[i];
4534 /* FIXME: might be removed if scan is OK*/
4535 if (!is_channel_valid(ch))
4538 if (is_channel_a_band(ch))
4539 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4541 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4543 geo_ch = &sband->channels[sband->n_channels++];
4545 geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel);
4546 geo_ch->max_power = ch->max_power_avg;
4547 geo_ch->max_antenna_gain = 0xff;
4548 geo_ch->hw_value = ch->channel;
4550 if (is_channel_valid(ch)) {
4551 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
4552 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
4554 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
4555 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
4557 if (ch->flags & EEPROM_CHANNEL_RADAR)
4558 geo_ch->flags |= IEEE80211_CHAN_RADAR;
4560 if (ch->max_power_avg > priv->max_channel_txpower_limit)
4561 priv->max_channel_txpower_limit =
4564 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
4567 /* Save flags for reg domain usage */
4568 geo_ch->orig_flags = geo_ch->flags;
4570 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4571 ch->channel, geo_ch->center_freq,
4572 is_channel_a_band(ch) ? "5.2" : "2.4",
4573 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
4574 "restricted" : "valid",
4578 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
4579 priv->cfg->sku & IWL_SKU_A) {
4580 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
4581 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
4582 priv->pci_dev->device, priv->pci_dev->subsystem_device);
4583 priv->cfg->sku &= ~IWL_SKU_A;
4586 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4587 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
4588 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
4590 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
4591 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4592 &priv->bands[IEEE80211_BAND_2GHZ];
4593 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
4594 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4595 &priv->bands[IEEE80211_BAND_5GHZ];
4597 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4603 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
4605 static void iwl3945_free_geos(struct iwl_priv *priv)
4607 kfree(priv->ieee_channels);
4608 kfree(priv->ieee_rates);
4609 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
4612 /******************************************************************************
4614 * uCode download functions
4616 ******************************************************************************/
4618 static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
4620 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
4621 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
4622 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4623 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
4624 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4625 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
4629 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
4630 * looking at all data.
4632 static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
4639 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4641 rc = iwl_grab_nic_access(priv);
4645 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4646 IWL39_RTC_INST_LOWER_BOUND);
4649 for (; len > 0; len -= sizeof(u32), image++) {
4650 /* read data comes through single port, auto-incr addr */
4651 /* NOTE: Use the debugless read so we don't flood kernel log
4652 * if IWL_DL_IO is set */
4653 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4654 if (val != le32_to_cpu(*image)) {
4655 IWL_ERR(priv, "uCode INST section is invalid at "
4656 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4657 save_len - len, val, le32_to_cpu(*image));
4665 iwl_release_nic_access(priv);
4668 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
4675 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
4676 * using sample data 100 bytes apart. If these sample points are good,
4677 * it's a pretty good bet that everything between them is good, too.
4679 static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
4686 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4688 rc = iwl_grab_nic_access(priv);
4692 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
4693 /* read data comes through single port, auto-incr addr */
4694 /* NOTE: Use the debugless read so we don't flood kernel log
4695 * if IWL_DL_IO is set */
4696 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4697 i + IWL39_RTC_INST_LOWER_BOUND);
4698 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4699 if (val != le32_to_cpu(*image)) {
4700 #if 0 /* Enable this if you want to see details */
4701 IWL_ERR(priv, "uCode INST section is invalid at "
4702 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4712 iwl_release_nic_access(priv);
4719 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
4720 * and verify its contents
4722 static int iwl3945_verify_ucode(struct iwl_priv *priv)
4729 image = (__le32 *)priv->ucode_boot.v_addr;
4730 len = priv->ucode_boot.len;
4731 rc = iwl3945_verify_inst_sparse(priv, image, len);
4733 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
4737 /* Try initialize */
4738 image = (__le32 *)priv->ucode_init.v_addr;
4739 len = priv->ucode_init.len;
4740 rc = iwl3945_verify_inst_sparse(priv, image, len);
4742 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
4746 /* Try runtime/protocol */
4747 image = (__le32 *)priv->ucode_code.v_addr;
4748 len = priv->ucode_code.len;
4749 rc = iwl3945_verify_inst_sparse(priv, image, len);
4751 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
4755 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
4757 /* Since nothing seems to match, show first several data entries in
4758 * instruction SRAM, so maybe visual inspection will give a clue.
4759 * Selection of bootstrap image (vs. other images) is arbitrary. */
4760 image = (__le32 *)priv->ucode_boot.v_addr;
4761 len = priv->ucode_boot.len;
4762 rc = iwl3945_verify_inst_full(priv, image, len);
4767 static void iwl3945_nic_start(struct iwl_priv *priv)
4769 /* Remove all resets to allow NIC to operate */
4770 iwl_write32(priv, CSR_RESET, 0);
4774 * iwl3945_read_ucode - Read uCode images from disk file.
4776 * Copy into buffers for card to fetch via bus-mastering
4778 static int iwl3945_read_ucode(struct iwl_priv *priv)
4780 struct iwl_ucode *ucode;
4781 int ret = -EINVAL, index;
4782 const struct firmware *ucode_raw;
4783 /* firmware file name contains uCode/driver compatibility version */
4784 const char *name_pre = priv->cfg->fw_name_pre;
4785 const unsigned int api_max = priv->cfg->ucode_api_max;
4786 const unsigned int api_min = priv->cfg->ucode_api_min;
4790 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
4792 /* Ask kernel firmware_class module to get the boot firmware off disk.
4793 * request_firmware() is synchronous, file is in memory on return. */
4794 for (index = api_max; index >= api_min; index--) {
4795 sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
4796 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
4798 IWL_ERR(priv, "%s firmware file req failed: %d\n",
4805 if (index < api_max)
4806 IWL_ERR(priv, "Loaded firmware %s, "
4807 "which is deprecated. "
4808 " Please use API v%u instead.\n",
4810 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
4811 buf, ucode_raw->size);
4819 /* Make sure that we got at least our header! */
4820 if (ucode_raw->size < sizeof(*ucode)) {
4821 IWL_ERR(priv, "File size way too small!\n");
4826 /* Data from ucode file: header followed by uCode images */
4827 ucode = (void *)ucode_raw->data;
4829 priv->ucode_ver = le32_to_cpu(ucode->ver);
4830 api_ver = IWL_UCODE_API(priv->ucode_ver);
4831 inst_size = le32_to_cpu(ucode->inst_size);
4832 data_size = le32_to_cpu(ucode->data_size);
4833 init_size = le32_to_cpu(ucode->init_size);
4834 init_data_size = le32_to_cpu(ucode->init_data_size);
4835 boot_size = le32_to_cpu(ucode->boot_size);
4837 /* api_ver should match the api version forming part of the
4838 * firmware filename ... but we don't check for that and only rely
4839 * on the API version read from firware header from here on forward */
4841 if (api_ver < api_min || api_ver > api_max) {
4842 IWL_ERR(priv, "Driver unable to support your firmware API. "
4843 "Driver supports v%u, firmware is v%u.\n",
4845 priv->ucode_ver = 0;
4849 if (api_ver != api_max)
4850 IWL_ERR(priv, "Firmware has old API version. Expected %u, "
4851 "got %u. New firmware can be obtained "
4852 "from http://www.intellinuxwireless.org.\n",
4855 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
4856 IWL_UCODE_MAJOR(priv->ucode_ver),
4857 IWL_UCODE_MINOR(priv->ucode_ver),
4858 IWL_UCODE_API(priv->ucode_ver),
4859 IWL_UCODE_SERIAL(priv->ucode_ver));
4861 IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
4863 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
4864 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size);
4865 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size);
4866 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size);
4867 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size);
4870 /* Verify size of file vs. image size info in file's header */
4871 if (ucode_raw->size < sizeof(*ucode) +
4872 inst_size + data_size + init_size +
4873 init_data_size + boot_size) {
4875 IWL_DEBUG_INFO("uCode file size %d too small\n",
4876 (int)ucode_raw->size);
4881 /* Verify that uCode images will fit in card's SRAM */
4882 if (inst_size > IWL39_MAX_INST_SIZE) {
4883 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
4889 if (data_size > IWL39_MAX_DATA_SIZE) {
4890 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
4895 if (init_size > IWL39_MAX_INST_SIZE) {
4896 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
4901 if (init_data_size > IWL39_MAX_DATA_SIZE) {
4902 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
4907 if (boot_size > IWL39_MAX_BSM_SIZE) {
4908 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
4914 /* Allocate ucode buffers for card's bus-master loading ... */
4916 /* Runtime instructions and 2 copies of data:
4917 * 1) unmodified from disk
4918 * 2) backup cache for save/restore during power-downs */
4919 priv->ucode_code.len = inst_size;
4920 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
4922 priv->ucode_data.len = data_size;
4923 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
4925 priv->ucode_data_backup.len = data_size;
4926 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4928 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
4929 !priv->ucode_data_backup.v_addr)
4932 /* Initialization instructions and data */
4933 if (init_size && init_data_size) {
4934 priv->ucode_init.len = init_size;
4935 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
4937 priv->ucode_init_data.len = init_data_size;
4938 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4940 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
4944 /* Bootstrap (instructions only, no data) */
4946 priv->ucode_boot.len = boot_size;
4947 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
4949 if (!priv->ucode_boot.v_addr)
4953 /* Copy images into buffers for card's bus-master reads ... */
4955 /* Runtime instructions (first block of data in file) */
4956 src = &ucode->data[0];
4957 len = priv->ucode_code.len;
4958 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
4959 memcpy(priv->ucode_code.v_addr, src, len);
4960 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
4961 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
4963 /* Runtime data (2nd block)
4964 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
4965 src = &ucode->data[inst_size];
4966 len = priv->ucode_data.len;
4967 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
4968 memcpy(priv->ucode_data.v_addr, src, len);
4969 memcpy(priv->ucode_data_backup.v_addr, src, len);
4971 /* Initialization instructions (3rd block) */
4973 src = &ucode->data[inst_size + data_size];
4974 len = priv->ucode_init.len;
4975 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
4977 memcpy(priv->ucode_init.v_addr, src, len);
4980 /* Initialization data (4th block) */
4981 if (init_data_size) {
4982 src = &ucode->data[inst_size + data_size + init_size];
4983 len = priv->ucode_init_data.len;
4984 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
4986 memcpy(priv->ucode_init_data.v_addr, src, len);
4989 /* Bootstrap instructions (5th block) */
4990 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
4991 len = priv->ucode_boot.len;
4992 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
4994 memcpy(priv->ucode_boot.v_addr, src, len);
4996 /* We have our copies now, allow OS release its copies */
4997 release_firmware(ucode_raw);
5001 IWL_ERR(priv, "failed to allocate pci memory\n");
5003 iwl3945_dealloc_ucode_pci(priv);
5006 release_firmware(ucode_raw);
5014 * iwl3945_set_ucode_ptrs - Set uCode address location
5016 * Tell initialization uCode where to find runtime uCode.
5018 * BSM registers initially contain pointers to initialization uCode.
5019 * We need to replace them to load runtime uCode inst and data,
5020 * and to save runtime data when powering down.
5022 static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
5027 unsigned long flags;
5029 /* bits 31:0 for 3945 */
5030 pinst = priv->ucode_code.p_addr;
5031 pdata = priv->ucode_data_backup.p_addr;
5033 spin_lock_irqsave(&priv->lock, flags);
5034 rc = iwl_grab_nic_access(priv);
5036 spin_unlock_irqrestore(&priv->lock, flags);
5040 /* Tell bootstrap uCode where to find image to load */
5041 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
5042 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
5043 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
5044 priv->ucode_data.len);
5046 /* Inst byte count must be last to set up, bit 31 signals uCode
5047 * that all new ptr/size info is in place */
5048 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
5049 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
5051 iwl_release_nic_access(priv);
5053 spin_unlock_irqrestore(&priv->lock, flags);
5055 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5061 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5063 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5065 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5067 static void iwl3945_init_alive_start(struct iwl_priv *priv)
5069 /* Check alive response for "valid" sign from uCode */
5070 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
5071 /* We had an error bringing up the hardware, so take it
5072 * all the way back down so we can try again */
5073 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5077 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5078 * This is a paranoid check, because we would not have gotten the
5079 * "initialize" alive if code weren't properly loaded. */
5080 if (iwl3945_verify_ucode(priv)) {
5081 /* Runtime instruction load was bad;
5082 * take it all the way back down so we can try again */
5083 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5087 /* Send pointers to protocol/runtime uCode image ... init code will
5088 * load and launch runtime uCode, which will send us another "Alive"
5090 IWL_DEBUG_INFO("Initialization Alive received.\n");
5091 if (iwl3945_set_ucode_ptrs(priv)) {
5092 /* Runtime instruction load won't happen;
5093 * take it all the way back down so we can try again */
5094 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5100 queue_work(priv->workqueue, &priv->restart);
5105 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw,
5106 struct sk_buff *skb);
5109 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5110 * from protocol/runtime uCode (initialization uCode's
5111 * Alive gets handled by iwl3945_init_alive_start()).
5113 static void iwl3945_alive_start(struct iwl_priv *priv)
5116 int thermal_spin = 0;
5119 IWL_DEBUG_INFO("Runtime Alive received.\n");
5121 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
5122 /* We had an error bringing up the hardware, so take it
5123 * all the way back down so we can try again */
5124 IWL_DEBUG_INFO("Alive failed.\n");
5128 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5129 * This is a paranoid check, because we would not have gotten the
5130 * "runtime" alive if code weren't properly loaded. */
5131 if (iwl3945_verify_ucode(priv)) {
5132 /* Runtime instruction load was bad;
5133 * take it all the way back down so we can try again */
5134 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5138 iwl3945_clear_stations_table(priv);
5140 rc = iwl_grab_nic_access(priv);
5142 IWL_WARN(priv, "Can not read RFKILL status from adapter\n");
5146 rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
5147 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
5148 iwl_release_nic_access(priv);
5151 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5152 /* if RFKILL is not on, then wait for thermal
5153 * sensor in adapter to kick in */
5154 while (iwl3945_hw_get_temperature(priv) == 0) {
5160 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5163 set_bit(STATUS_RF_KILL_HW, &priv->status);
5165 /* After the ALIVE response, we can send commands to 3945 uCode */
5166 set_bit(STATUS_ALIVE, &priv->status);
5168 /* Clear out the uCode error bit if it is set */
5169 clear_bit(STATUS_FW_ERROR, &priv->status);
5171 if (iwl_is_rfkill(priv))
5174 ieee80211_wake_queues(priv->hw);
5176 priv->active_rate = priv->rates_mask;
5177 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
5179 iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
5181 if (iwl3945_is_associated(priv)) {
5182 struct iwl3945_rxon_cmd *active_rxon =
5183 (struct iwl3945_rxon_cmd *)(&priv->active39_rxon);
5185 memcpy(&priv->staging39_rxon, &priv->active39_rxon,
5186 sizeof(priv->staging39_rxon));
5187 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5189 /* Initialize our rx_config data */
5190 iwl3945_connection_init_rx_config(priv, priv->iw_mode);
5191 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
5194 /* Configure Bluetooth device coexistence support */
5195 iwl3945_send_bt_config(priv);
5197 /* Configure the adapter for unassociated operation */
5198 iwl3945_commit_rxon(priv);
5200 iwl3945_reg_txpower_periodic(priv);
5202 iwl3945_led_register(priv);
5204 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5205 set_bit(STATUS_READY, &priv->status);
5206 wake_up_interruptible(&priv->wait_command_queue);
5208 if (priv->error_recovering)
5209 iwl3945_error_recovery(priv);
5211 /* reassociate for ADHOC mode */
5212 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
5213 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
5216 iwl3945_mac_beacon_update(priv->hw, beacon);
5222 queue_work(priv->workqueue, &priv->restart);
5225 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
5227 static void __iwl3945_down(struct iwl_priv *priv)
5229 unsigned long flags;
5230 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
5231 struct ieee80211_conf *conf = NULL;
5233 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
5235 conf = ieee80211_get_hw_conf(priv->hw);
5238 set_bit(STATUS_EXIT_PENDING, &priv->status);
5240 iwl3945_led_unregister(priv);
5241 iwl3945_clear_stations_table(priv);
5243 /* Unblock any waiting calls */
5244 wake_up_interruptible_all(&priv->wait_command_queue);
5246 /* Wipe out the EXIT_PENDING status bit if we are not actually
5247 * exiting the module */
5249 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5251 /* stop and reset the on-board processor */
5252 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
5254 /* tell the device to stop sending interrupts */
5255 spin_lock_irqsave(&priv->lock, flags);
5256 iwl3945_disable_interrupts(priv);
5257 spin_unlock_irqrestore(&priv->lock, flags);
5258 iwl_synchronize_irq(priv);
5260 if (priv->mac80211_registered)
5261 ieee80211_stop_queues(priv->hw);
5263 /* If we have not previously called iwl3945_init() then
5264 * clear all bits but the RF Kill and SUSPEND bits and return */
5265 if (!iwl_is_init(priv)) {
5266 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
5268 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
5270 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
5271 STATUS_GEO_CONFIGURED |
5272 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
5274 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
5275 STATUS_EXIT_PENDING;
5279 /* ...otherwise clear out all the status bits but the RF Kill and
5280 * SUSPEND bits and continue taking the NIC down. */
5281 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
5283 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
5285 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
5286 STATUS_GEO_CONFIGURED |
5287 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
5289 test_bit(STATUS_FW_ERROR, &priv->status) <<
5291 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
5292 STATUS_EXIT_PENDING;
5294 spin_lock_irqsave(&priv->lock, flags);
5295 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
5296 spin_unlock_irqrestore(&priv->lock, flags);
5298 iwl3945_hw_txq_ctx_stop(priv);
5299 iwl3945_hw_rxq_stop(priv);
5301 spin_lock_irqsave(&priv->lock, flags);
5302 if (!iwl_grab_nic_access(priv)) {
5303 iwl_write_prph(priv, APMG_CLK_DIS_REG,
5304 APMG_CLK_VAL_DMA_CLK_RQT);
5305 iwl_release_nic_access(priv);
5307 spin_unlock_irqrestore(&priv->lock, flags);
5311 priv->cfg->ops->lib->apm_ops.reset(priv);
5313 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
5315 if (priv->ibss_beacon)
5316 dev_kfree_skb(priv->ibss_beacon);
5317 priv->ibss_beacon = NULL;
5319 /* clear out any free frames */
5320 iwl3945_clear_free_frames(priv);
5323 static void iwl3945_down(struct iwl_priv *priv)
5325 mutex_lock(&priv->mutex);
5326 __iwl3945_down(priv);
5327 mutex_unlock(&priv->mutex);
5329 iwl3945_cancel_deferred_work(priv);
5332 #define MAX_HW_RESTARTS 5
5334 static int __iwl3945_up(struct iwl_priv *priv)
5338 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5339 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
5343 if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
5344 IWL_WARN(priv, "Radio disabled by SW RF kill (module "
5349 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
5350 IWL_ERR(priv, "ucode not available for device bring up\n");
5354 /* If platform's RF_KILL switch is NOT set to KILL */
5355 if (iwl_read32(priv, CSR_GP_CNTRL) &
5356 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
5357 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5359 set_bit(STATUS_RF_KILL_HW, &priv->status);
5360 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
5361 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
5366 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5368 rc = iwl3945_hw_nic_init(priv);
5370 IWL_ERR(priv, "Unable to int nic\n");
5374 /* make sure rfkill handshake bits are cleared */
5375 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5376 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
5377 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
5379 /* clear (again), then enable host interrupts */
5380 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5381 iwl3945_enable_interrupts(priv);
5383 /* really make sure rfkill handshake bits are cleared */
5384 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5385 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5387 /* Copy original ucode data image from disk into backup cache.
5388 * This will be used to initialize the on-board processor's
5389 * data SRAM for a clean start when the runtime program first loads. */
5390 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
5391 priv->ucode_data.len);
5393 /* We return success when we resume from suspend and rf_kill is on. */
5394 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
5397 for (i = 0; i < MAX_HW_RESTARTS; i++) {
5399 iwl3945_clear_stations_table(priv);
5401 /* load bootstrap state machine,
5402 * load bootstrap program into processor's memory,
5403 * prepare to load the "initialize" uCode */
5404 priv->cfg->ops->lib->load_ucode(priv);
5408 "Unable to set up bootstrap uCode: %d\n", rc);
5412 /* start card; "initialize" will load runtime ucode */
5413 iwl3945_nic_start(priv);
5415 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
5420 set_bit(STATUS_EXIT_PENDING, &priv->status);
5421 __iwl3945_down(priv);
5422 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5424 /* tried to restart and config the device for as long as our
5425 * patience could withstand */
5426 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
5431 /*****************************************************************************
5433 * Workqueue callbacks
5435 *****************************************************************************/
5437 static void iwl3945_bg_init_alive_start(struct work_struct *data)
5439 struct iwl_priv *priv =
5440 container_of(data, struct iwl_priv, init_alive_start.work);
5442 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5445 mutex_lock(&priv->mutex);
5446 iwl3945_init_alive_start(priv);
5447 mutex_unlock(&priv->mutex);
5450 static void iwl3945_bg_alive_start(struct work_struct *data)
5452 struct iwl_priv *priv =
5453 container_of(data, struct iwl_priv, alive_start.work);
5455 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5458 mutex_lock(&priv->mutex);
5459 iwl3945_alive_start(priv);
5460 mutex_unlock(&priv->mutex);
5463 static void iwl3945_bg_rf_kill(struct work_struct *work)
5465 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
5467 wake_up_interruptible(&priv->wait_command_queue);
5469 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5472 mutex_lock(&priv->mutex);
5474 if (!iwl_is_rfkill(priv)) {
5475 IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
5476 "HW and/or SW RF Kill no longer active, restarting "
5478 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
5479 queue_work(priv->workqueue, &priv->restart);
5482 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
5483 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5484 "disabled by SW switch\n");
5486 IWL_WARN(priv, "Radio Frequency Kill Switch is On:\n"
5487 "Kill switch must be turned off for "
5488 "wireless networking to work.\n");
5491 mutex_unlock(&priv->mutex);
5492 iwl3945_rfkill_set_hw_state(priv);
5495 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5497 static void iwl3945_bg_scan_check(struct work_struct *data)
5499 struct iwl_priv *priv =
5500 container_of(data, struct iwl_priv, scan_check.work);
5502 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5505 mutex_lock(&priv->mutex);
5506 if (test_bit(STATUS_SCANNING, &priv->status) ||
5507 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5508 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
5509 "Scan completion watchdog resetting adapter (%dms)\n",
5510 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
5512 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
5513 iwl3945_send_scan_abort(priv);
5515 mutex_unlock(&priv->mutex);
5518 static void iwl3945_bg_request_scan(struct work_struct *data)
5520 struct iwl_priv *priv =
5521 container_of(data, struct iwl_priv, request_scan);
5522 struct iwl_host_cmd cmd = {
5523 .id = REPLY_SCAN_CMD,
5524 .len = sizeof(struct iwl3945_scan_cmd),
5525 .meta.flags = CMD_SIZE_HUGE,
5528 struct iwl3945_scan_cmd *scan;
5529 struct ieee80211_conf *conf = NULL;
5531 enum ieee80211_band band;
5532 DECLARE_SSID_BUF(ssid);
5534 conf = ieee80211_get_hw_conf(priv->hw);
5536 mutex_lock(&priv->mutex);
5538 if (!iwl_is_ready(priv)) {
5539 IWL_WARN(priv, "request scan called when driver not ready.\n");
5543 /* Make sure the scan wasn't canceled before this queued work
5544 * was given the chance to run... */
5545 if (!test_bit(STATUS_SCANNING, &priv->status))
5548 /* This should never be called or scheduled if there is currently
5549 * a scan active in the hardware. */
5550 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
5551 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5552 "Ignoring second request.\n");
5557 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5558 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5562 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5563 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5567 if (iwl_is_rfkill(priv)) {
5568 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5572 if (!test_bit(STATUS_READY, &priv->status)) {
5573 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5577 if (!priv->scan_bands) {
5578 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5582 if (!priv->scan39) {
5583 priv->scan39 = kmalloc(sizeof(struct iwl3945_scan_cmd) +
5584 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
5585 if (!priv->scan39) {
5590 scan = priv->scan39;
5591 memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
5593 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
5594 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
5596 if (iwl3945_is_associated(priv)) {
5599 u32 suspend_time = 100;
5600 u32 scan_suspend_time = 100;
5601 unsigned long flags;
5603 IWL_DEBUG_INFO("Scanning while associated...\n");
5605 spin_lock_irqsave(&priv->lock, flags);
5606 interval = priv->beacon_int;
5607 spin_unlock_irqrestore(&priv->lock, flags);
5609 scan->suspend_time = 0;
5610 scan->max_out_time = cpu_to_le32(200 * 1024);
5612 interval = suspend_time;
5614 * suspend time format:
5615 * 0-19: beacon interval in usec (time before exec.)
5617 * 24-31: number of beacons (suspend between channels)
5620 extra = (suspend_time / interval) << 24;
5621 scan_suspend_time = 0xFF0FFFFF &
5622 (extra | ((suspend_time % interval) * 1024));
5624 scan->suspend_time = cpu_to_le32(scan_suspend_time);
5625 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5626 scan_suspend_time, interval);
5629 /* We should add the ability for user to lock to PASSIVE ONLY */
5630 if (priv->one_direct_scan) {
5632 ("Kicking off one direct scan for '%s'\n",
5633 print_ssid(ssid, priv->direct_ssid,
5634 priv->direct_ssid_len));
5635 scan->direct_scan[0].id = WLAN_EID_SSID;
5636 scan->direct_scan[0].len = priv->direct_ssid_len;
5637 memcpy(scan->direct_scan[0].ssid,
5638 priv->direct_ssid, priv->direct_ssid_len);
5641 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
5643 /* We don't build a direct scan probe request; the uCode will do
5644 * that based on the direct_mask added to each channel entry */
5645 scan->tx_cmd.len = cpu_to_le16(
5646 iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
5647 IWL_MAX_SCAN_SIZE - sizeof(*scan)));
5648 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
5649 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
5650 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
5652 /* flags + rate selection */
5654 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
5655 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
5656 scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
5657 scan->good_CRC_th = 0;
5658 band = IEEE80211_BAND_2GHZ;
5659 } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
5660 scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
5661 scan->good_CRC_th = IWL_GOOD_CRC_TH;
5662 band = IEEE80211_BAND_5GHZ;
5664 IWL_WARN(priv, "Invalid scan band count\n");
5668 /* select Rx antennas */
5669 scan->flags |= iwl3945_get_antenna_flags(priv);
5671 if (priv->iw_mode == NL80211_IFTYPE_MONITOR)
5672 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
5674 scan->channel_count =
5675 iwl3945_get_channels_for_scan(priv, band, 1, /* active */
5677 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
5679 if (scan->channel_count == 0) {
5680 IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
5684 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
5685 scan->channel_count * sizeof(struct iwl3945_scan_channel);
5687 scan->len = cpu_to_le16(cmd.len);
5689 set_bit(STATUS_SCAN_HW, &priv->status);
5690 rc = iwl3945_send_cmd_sync(priv, &cmd);
5694 queue_delayed_work(priv->workqueue, &priv->scan_check,
5695 IWL_SCAN_CHECK_WATCHDOG);
5697 mutex_unlock(&priv->mutex);
5701 /* can not perform scan make sure we clear scanning
5702 * bits from status so next scan request can be performed.
5703 * if we dont clear scanning status bit here all next scan
5706 clear_bit(STATUS_SCAN_HW, &priv->status);
5707 clear_bit(STATUS_SCANNING, &priv->status);
5709 /* inform mac80211 scan aborted */
5710 queue_work(priv->workqueue, &priv->scan_completed);
5711 mutex_unlock(&priv->mutex);
5714 static void iwl3945_bg_up(struct work_struct *data)
5716 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
5718 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5721 mutex_lock(&priv->mutex);
5723 mutex_unlock(&priv->mutex);
5724 iwl3945_rfkill_set_hw_state(priv);
5727 static void iwl3945_bg_restart(struct work_struct *data)
5729 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
5731 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5735 queue_work(priv->workqueue, &priv->up);
5738 static void iwl3945_bg_rx_replenish(struct work_struct *data)
5740 struct iwl_priv *priv =
5741 container_of(data, struct iwl_priv, rx_replenish);
5743 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5746 mutex_lock(&priv->mutex);
5747 iwl3945_rx_replenish(priv);
5748 mutex_unlock(&priv->mutex);
5751 #define IWL_DELAY_NEXT_SCAN (HZ*2)
5753 static void iwl3945_post_associate(struct iwl_priv *priv)
5756 struct ieee80211_conf *conf = NULL;
5758 if (priv->iw_mode == NL80211_IFTYPE_AP) {
5759 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
5764 IWL_DEBUG_ASSOC("Associated as %d to: %pM\n",
5765 priv->assoc_id, priv->active39_rxon.bssid_addr);
5767 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5770 if (!priv->vif || !priv->is_open)
5773 iwl3945_scan_cancel_timeout(priv, 200);
5775 conf = ieee80211_get_hw_conf(priv->hw);
5777 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5778 iwl3945_commit_rxon(priv);
5780 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
5781 iwl3945_setup_rxon_timing(priv);
5782 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
5783 sizeof(priv->rxon_timing), &priv->rxon_timing);
5785 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
5786 "Attempting to continue.\n");
5788 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
5790 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
5792 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
5793 priv->assoc_id, priv->beacon_int);
5795 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
5796 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
5798 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
5800 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
5801 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
5802 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
5804 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5806 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
5807 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5811 iwl3945_commit_rxon(priv);
5813 switch (priv->iw_mode) {
5814 case NL80211_IFTYPE_STATION:
5815 iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
5818 case NL80211_IFTYPE_ADHOC:
5821 iwl3945_add_station(priv, priv->bssid, 0, 0);
5822 iwl3945_sync_sta(priv, IWL_STA_ID,
5823 (priv->band == IEEE80211_BAND_5GHZ) ?
5824 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
5826 iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
5827 iwl3945_send_beacon_cmd(priv);
5832 IWL_ERR(priv, "%s Should not be called in %d mode\n",
5833 __func__, priv->iw_mode);
5837 iwl3945_activate_qos(priv, 0);
5839 /* we have just associated, don't start scan too early */
5840 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
5843 static void iwl3945_bg_abort_scan(struct work_struct *work)
5845 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
5847 if (!iwl_is_ready(priv))
5850 mutex_lock(&priv->mutex);
5852 set_bit(STATUS_SCAN_ABORTING, &priv->status);
5853 iwl3945_send_scan_abort(priv);
5855 mutex_unlock(&priv->mutex);
5858 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
5860 static void iwl3945_bg_scan_completed(struct work_struct *work)
5862 struct iwl_priv *priv =
5863 container_of(work, struct iwl_priv, scan_completed);
5865 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
5867 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5870 if (test_bit(STATUS_CONF_PENDING, &priv->status))
5871 iwl3945_mac_config(priv->hw, 0);
5873 ieee80211_scan_completed(priv->hw);
5875 /* Since setting the TXPOWER may have been deferred while
5876 * performing the scan, fire one off */
5877 mutex_lock(&priv->mutex);
5878 iwl3945_hw_reg_send_txpower(priv);
5879 mutex_unlock(&priv->mutex);
5882 /*****************************************************************************
5884 * mac80211 entry point functions
5886 *****************************************************************************/
5888 #define UCODE_READY_TIMEOUT (2 * HZ)
5890 static int iwl3945_mac_start(struct ieee80211_hw *hw)
5892 struct iwl_priv *priv = hw->priv;
5895 IWL_DEBUG_MAC80211("enter\n");
5897 if (pci_enable_device(priv->pci_dev)) {
5898 IWL_ERR(priv, "Fail to pci_enable_device\n");
5901 pci_restore_state(priv->pci_dev);
5902 pci_enable_msi(priv->pci_dev);
5904 ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED,
5907 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
5908 goto out_disable_msi;
5911 /* we should be verifying the device is ready to be opened */
5912 mutex_lock(&priv->mutex);
5914 memset(&priv->staging39_rxon, 0, sizeof(struct iwl3945_rxon_cmd));
5915 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
5916 * ucode filename and max sizes are card-specific. */
5918 if (!priv->ucode_code.len) {
5919 ret = iwl3945_read_ucode(priv);
5921 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
5922 mutex_unlock(&priv->mutex);
5923 goto out_release_irq;
5927 ret = __iwl3945_up(priv);
5929 mutex_unlock(&priv->mutex);
5931 iwl3945_rfkill_set_hw_state(priv);
5934 goto out_release_irq;
5936 IWL_DEBUG_INFO("Start UP work.\n");
5938 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
5941 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
5942 * mac80211 will not be run successfully. */
5943 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
5944 test_bit(STATUS_READY, &priv->status),
5945 UCODE_READY_TIMEOUT);
5947 if (!test_bit(STATUS_READY, &priv->status)) {
5949 "Wait for START_ALIVE timeout after %dms.\n",
5950 jiffies_to_msecs(UCODE_READY_TIMEOUT));
5952 goto out_release_irq;
5957 IWL_DEBUG_MAC80211("leave\n");
5961 free_irq(priv->pci_dev->irq, priv);
5963 pci_disable_msi(priv->pci_dev);
5964 pci_disable_device(priv->pci_dev);
5966 IWL_DEBUG_MAC80211("leave - failed\n");
5970 static void iwl3945_mac_stop(struct ieee80211_hw *hw)
5972 struct iwl_priv *priv = hw->priv;
5974 IWL_DEBUG_MAC80211("enter\n");
5976 if (!priv->is_open) {
5977 IWL_DEBUG_MAC80211("leave - skip\n");
5983 if (iwl_is_ready_rf(priv)) {
5984 /* stop mac, cancel any scan request and clear
5985 * RXON_FILTER_ASSOC_MSK BIT
5987 mutex_lock(&priv->mutex);
5988 iwl3945_scan_cancel_timeout(priv, 100);
5989 mutex_unlock(&priv->mutex);
5994 flush_workqueue(priv->workqueue);
5995 free_irq(priv->pci_dev->irq, priv);
5996 pci_disable_msi(priv->pci_dev);
5997 pci_save_state(priv->pci_dev);
5998 pci_disable_device(priv->pci_dev);
6000 IWL_DEBUG_MAC80211("leave\n");
6003 static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
6005 struct iwl_priv *priv = hw->priv;
6007 IWL_DEBUG_MAC80211("enter\n");
6009 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
6010 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
6012 if (iwl3945_tx_skb(priv, skb))
6013 dev_kfree_skb_any(skb);
6015 IWL_DEBUG_MAC80211("leave\n");
6016 return NETDEV_TX_OK;
6019 static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
6020 struct ieee80211_if_init_conf *conf)
6022 struct iwl_priv *priv = hw->priv;
6023 unsigned long flags;
6025 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
6028 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6032 spin_lock_irqsave(&priv->lock, flags);
6033 priv->vif = conf->vif;
6034 priv->iw_mode = conf->type;
6036 spin_unlock_irqrestore(&priv->lock, flags);
6038 mutex_lock(&priv->mutex);
6040 if (conf->mac_addr) {
6041 IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr);
6042 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
6045 if (iwl_is_ready(priv))
6046 iwl3945_set_mode(priv, conf->type);
6048 mutex_unlock(&priv->mutex);
6050 IWL_DEBUG_MAC80211("leave\n");
6055 * iwl3945_mac_config - mac80211 config callback
6057 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6058 * be set inappropriately and the driver currently sets the hardware up to
6059 * use it whenever needed.
6061 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed)
6063 struct iwl_priv *priv = hw->priv;
6064 const struct iwl_channel_info *ch_info;
6065 struct ieee80211_conf *conf = &hw->conf;
6066 unsigned long flags;
6069 mutex_lock(&priv->mutex);
6070 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
6072 if (!iwl_is_ready(priv)) {
6073 IWL_DEBUG_MAC80211("leave - not ready\n");
6078 if (unlikely(!iwl3945_mod_params.disable_hw_scan &&
6079 test_bit(STATUS_SCANNING, &priv->status))) {
6080 IWL_DEBUG_MAC80211("leave - scanning\n");
6081 set_bit(STATUS_CONF_PENDING, &priv->status);
6082 mutex_unlock(&priv->mutex);
6086 spin_lock_irqsave(&priv->lock, flags);
6088 ch_info = iwl3945_get_channel_info(priv, conf->channel->band,
6089 conf->channel->hw_value);
6090 if (!is_channel_valid(ch_info)) {
6091 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
6092 conf->channel->hw_value, conf->channel->band);
6093 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6094 spin_unlock_irqrestore(&priv->lock, flags);
6099 iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value);
6101 iwl3945_set_flags_for_phymode(priv, conf->channel->band);
6103 /* The list of supported rates and rate mask can be different
6104 * for each phymode; since the phymode may have changed, reset
6105 * the rate mask to what mac80211 lists */
6106 iwl3945_set_rate(priv);
6108 spin_unlock_irqrestore(&priv->lock, flags);
6110 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6111 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
6112 iwl3945_hw_channel_switch(priv, conf->channel);
6117 iwl3945_radio_kill_sw(priv, !conf->radio_enabled);
6119 if (!conf->radio_enabled) {
6120 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6124 if (iwl_is_rfkill(priv)) {
6125 IWL_DEBUG_MAC80211("leave - RF kill\n");
6130 iwl3945_set_rate(priv);
6132 if (memcmp(&priv->active39_rxon,
6133 &priv->staging39_rxon, sizeof(priv->staging39_rxon)))
6134 iwl3945_commit_rxon(priv);
6136 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6138 IWL_DEBUG_MAC80211("leave\n");
6141 clear_bit(STATUS_CONF_PENDING, &priv->status);
6142 mutex_unlock(&priv->mutex);
6146 static void iwl3945_config_ap(struct iwl_priv *priv)
6150 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
6153 /* The following should be done only at AP bring up */
6154 if (!(iwl3945_is_associated(priv))) {
6156 /* RXON - unassoc (to set timing command) */
6157 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6158 iwl3945_commit_rxon(priv);
6161 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
6162 iwl3945_setup_rxon_timing(priv);
6163 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
6164 sizeof(priv->rxon_timing), &priv->rxon_timing);
6166 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
6167 "Attempting to continue.\n");
6169 /* FIXME: what should be the assoc_id for AP? */
6170 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
6171 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
6172 priv->staging39_rxon.flags |=
6173 RXON_FLG_SHORT_PREAMBLE_MSK;
6175 priv->staging39_rxon.flags &=
6176 ~RXON_FLG_SHORT_PREAMBLE_MSK;
6178 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
6179 if (priv->assoc_capability &
6180 WLAN_CAPABILITY_SHORT_SLOT_TIME)
6181 priv->staging39_rxon.flags |=
6182 RXON_FLG_SHORT_SLOT_MSK;
6184 priv->staging39_rxon.flags &=
6185 ~RXON_FLG_SHORT_SLOT_MSK;
6187 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
6188 priv->staging39_rxon.flags &=
6189 ~RXON_FLG_SHORT_SLOT_MSK;
6191 /* restore RXON assoc */
6192 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
6193 iwl3945_commit_rxon(priv);
6194 iwl3945_add_station(priv, iwl_bcast_addr, 0, 0);
6196 iwl3945_send_beacon_cmd(priv);
6198 /* FIXME - we need to add code here to detect a totally new
6199 * configuration, reset the AP, unassoc, rxon timing, assoc,
6200 * clear sta table, add BCAST sta... */
6203 static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
6204 struct ieee80211_vif *vif,
6205 struct ieee80211_if_conf *conf)
6207 struct iwl_priv *priv = hw->priv;
6213 if (priv->vif != vif) {
6214 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6218 /* handle this temporarily here */
6219 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
6220 conf->changed & IEEE80211_IFCC_BEACON) {
6221 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
6224 mutex_lock(&priv->mutex);
6225 rc = iwl3945_mac_beacon_update(hw, beacon);
6226 mutex_unlock(&priv->mutex);
6231 if (!iwl_is_alive(priv))
6234 mutex_lock(&priv->mutex);
6237 IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid);
6240 * very dubious code was here; the probe filtering flag is never set:
6242 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6243 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6246 if (priv->iw_mode == NL80211_IFTYPE_AP) {
6248 conf->bssid = priv->mac_addr;
6249 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
6250 IWL_DEBUG_MAC80211("bssid was set to: %pM\n",
6253 if (priv->ibss_beacon)
6254 dev_kfree_skb(priv->ibss_beacon);
6256 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
6259 if (iwl_is_rfkill(priv))
6262 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
6263 !is_multicast_ether_addr(conf->bssid)) {
6264 /* If there is currently a HW scan going on in the background
6265 * then we need to cancel it else the RXON below will fail. */
6266 if (iwl3945_scan_cancel_timeout(priv, 100)) {
6267 IWL_WARN(priv, "Aborted scan still in progress "
6269 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6270 mutex_unlock(&priv->mutex);
6273 memcpy(priv->staging39_rxon.bssid_addr, conf->bssid, ETH_ALEN);
6275 /* TODO: Audit driver for usage of these members and see
6276 * if mac80211 deprecates them (priv->bssid looks like it
6277 * shouldn't be there, but I haven't scanned the IBSS code
6278 * to verify) - jpk */
6279 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
6281 if (priv->iw_mode == NL80211_IFTYPE_AP)
6282 iwl3945_config_ap(priv);
6284 rc = iwl3945_commit_rxon(priv);
6285 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
6286 iwl3945_add_station(priv,
6287 priv->active39_rxon.bssid_addr, 1, 0);
6291 iwl3945_scan_cancel_timeout(priv, 100);
6292 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6293 iwl3945_commit_rxon(priv);
6297 IWL_DEBUG_MAC80211("leave\n");
6298 mutex_unlock(&priv->mutex);
6303 static void iwl3945_configure_filter(struct ieee80211_hw *hw,
6304 unsigned int changed_flags,
6305 unsigned int *total_flags,
6306 int mc_count, struct dev_addr_list *mc_list)
6308 struct iwl_priv *priv = hw->priv;
6309 __le32 *filter_flags = &priv->staging39_rxon.filter_flags;
6311 IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n",
6312 changed_flags, *total_flags);
6314 if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
6315 if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))
6316 *filter_flags |= RXON_FILTER_PROMISC_MSK;
6318 *filter_flags &= ~RXON_FILTER_PROMISC_MSK;
6320 if (changed_flags & FIF_ALLMULTI) {
6321 if (*total_flags & FIF_ALLMULTI)
6322 *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK;
6324 *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK;
6326 if (changed_flags & FIF_CONTROL) {
6327 if (*total_flags & FIF_CONTROL)
6328 *filter_flags |= RXON_FILTER_CTL2HOST_MSK;
6330 *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK;
6332 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
6333 if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
6334 *filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
6336 *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK;
6339 /* We avoid iwl_commit_rxon here to commit the new filter flags
6340 * since mac80211 will call ieee80211_hw_config immediately.
6341 * (mc_list is not supported at this time). Otherwise, we need to
6342 * queue a background iwl_commit_rxon work.
6345 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
6346 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
6349 static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
6350 struct ieee80211_if_init_conf *conf)
6352 struct iwl_priv *priv = hw->priv;
6354 IWL_DEBUG_MAC80211("enter\n");
6356 mutex_lock(&priv->mutex);
6358 if (iwl_is_ready_rf(priv)) {
6359 iwl3945_scan_cancel_timeout(priv, 100);
6360 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6361 iwl3945_commit_rxon(priv);
6363 if (priv->vif == conf->vif) {
6365 memset(priv->bssid, 0, ETH_ALEN);
6367 mutex_unlock(&priv->mutex);
6369 IWL_DEBUG_MAC80211("leave\n");
6372 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
6374 static void iwl3945_bss_info_changed(struct ieee80211_hw *hw,
6375 struct ieee80211_vif *vif,
6376 struct ieee80211_bss_conf *bss_conf,
6379 struct iwl_priv *priv = hw->priv;
6381 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
6383 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
6384 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6385 bss_conf->use_short_preamble);
6386 if (bss_conf->use_short_preamble)
6387 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
6389 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
6392 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
6393 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
6394 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
6395 priv->staging39_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
6397 priv->staging39_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
6400 if (changes & BSS_CHANGED_ASSOC) {
6401 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
6402 /* This should never happen as this function should
6403 * never be called from interrupt context. */
6404 if (WARN_ON_ONCE(in_interrupt()))
6406 if (bss_conf->assoc) {
6407 priv->assoc_id = bss_conf->aid;
6408 priv->beacon_int = bss_conf->beacon_int;
6409 priv->timestamp = bss_conf->timestamp;
6410 priv->assoc_capability = bss_conf->assoc_capability;
6411 priv->next_scan_jiffies = jiffies +
6412 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
6413 mutex_lock(&priv->mutex);
6414 iwl3945_post_associate(priv);
6415 mutex_unlock(&priv->mutex);
6418 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
6420 } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) {
6421 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
6422 iwl3945_send_rxon_assoc(priv);
6427 static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
6430 unsigned long flags;
6431 struct iwl_priv *priv = hw->priv;
6432 DECLARE_SSID_BUF(ssid_buf);
6434 IWL_DEBUG_MAC80211("enter\n");
6436 mutex_lock(&priv->mutex);
6437 spin_lock_irqsave(&priv->lock, flags);
6439 if (!iwl_is_ready_rf(priv)) {
6441 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6445 /* we don't schedule scan within next_scan_jiffies period */
6446 if (priv->next_scan_jiffies &&
6447 time_after(priv->next_scan_jiffies, jiffies)) {
6451 /* if we just finished scan ask for delay for a broadcast scan */
6452 if ((len == 0) && priv->last_scan_jiffies &&
6453 time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN,
6459 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6460 print_ssid(ssid_buf, ssid, len), (int)len);
6462 priv->one_direct_scan = 1;
6463 priv->direct_ssid_len = (u8)
6464 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
6465 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
6467 priv->one_direct_scan = 0;
6469 rc = iwl3945_scan_initiate(priv);
6471 IWL_DEBUG_MAC80211("leave\n");
6474 spin_unlock_irqrestore(&priv->lock, flags);
6475 mutex_unlock(&priv->mutex);
6480 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
6481 struct ieee80211_vif *vif,
6482 struct ieee80211_sta *sta,
6483 struct ieee80211_key_conf *key)
6485 struct iwl_priv *priv = hw->priv;
6489 static const u8 bcast_addr[ETH_ALEN] =
6490 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
6492 IWL_DEBUG_MAC80211("enter\n");
6494 if (iwl3945_mod_params.sw_crypto) {
6495 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6499 addr = sta ? sta->addr : bcast_addr;
6501 sta_id = iwl3945_hw_find_station(priv, addr);
6502 if (sta_id == IWL_INVALID_STATION) {
6503 IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
6508 mutex_lock(&priv->mutex);
6510 iwl3945_scan_cancel_timeout(priv, 100);
6514 rc = iwl3945_update_sta_key_info(priv, key, sta_id);
6516 iwl3945_set_rxon_hwcrypto(priv, 1);
6517 iwl3945_commit_rxon(priv);
6518 key->hw_key_idx = sta_id;
6519 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
6520 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
6524 rc = iwl3945_clear_sta_key_info(priv, sta_id);
6526 iwl3945_set_rxon_hwcrypto(priv, 0);
6527 iwl3945_commit_rxon(priv);
6528 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6535 IWL_DEBUG_MAC80211("leave\n");
6536 mutex_unlock(&priv->mutex);
6541 static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
6542 const struct ieee80211_tx_queue_params *params)
6544 struct iwl_priv *priv = hw->priv;
6545 unsigned long flags;
6548 IWL_DEBUG_MAC80211("enter\n");
6550 if (!iwl_is_ready_rf(priv)) {
6551 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6555 if (queue >= AC_NUM) {
6556 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
6560 q = AC_NUM - 1 - queue;
6562 spin_lock_irqsave(&priv->lock, flags);
6564 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
6565 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
6566 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
6567 priv->qos_data.def_qos_parm.ac[q].edca_txop =
6568 cpu_to_le16((params->txop * 32));
6570 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
6571 priv->qos_data.qos_active = 1;
6573 spin_unlock_irqrestore(&priv->lock, flags);
6575 mutex_lock(&priv->mutex);
6576 if (priv->iw_mode == NL80211_IFTYPE_AP)
6577 iwl3945_activate_qos(priv, 1);
6578 else if (priv->assoc_id && iwl3945_is_associated(priv))
6579 iwl3945_activate_qos(priv, 0);
6581 mutex_unlock(&priv->mutex);
6583 IWL_DEBUG_MAC80211("leave\n");
6587 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
6588 struct ieee80211_tx_queue_stats *stats)
6590 struct iwl_priv *priv = hw->priv;
6592 struct iwl_tx_queue *txq;
6593 struct iwl_queue *q;
6594 unsigned long flags;
6596 IWL_DEBUG_MAC80211("enter\n");
6598 if (!iwl_is_ready_rf(priv)) {
6599 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6603 spin_lock_irqsave(&priv->lock, flags);
6605 for (i = 0; i < AC_NUM; i++) {
6606 txq = &priv->txq[i];
6608 avail = iwl_queue_space(q);
6610 stats[i].len = q->n_window - avail;
6611 stats[i].limit = q->n_window - q->high_mark;
6612 stats[i].count = q->n_window;
6615 spin_unlock_irqrestore(&priv->lock, flags);
6617 IWL_DEBUG_MAC80211("leave\n");
6622 static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw)
6624 struct iwl_priv *priv = hw->priv;
6625 unsigned long flags;
6627 mutex_lock(&priv->mutex);
6628 IWL_DEBUG_MAC80211("enter\n");
6630 iwl_reset_qos(priv);
6632 spin_lock_irqsave(&priv->lock, flags);
6634 priv->assoc_capability = 0;
6635 priv->call_post_assoc_from_beacon = 0;
6637 /* new association get rid of ibss beacon skb */
6638 if (priv->ibss_beacon)
6639 dev_kfree_skb(priv->ibss_beacon);
6641 priv->ibss_beacon = NULL;
6643 priv->beacon_int = priv->hw->conf.beacon_int;
6644 priv->timestamp = 0;
6645 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
6646 priv->beacon_int = 0;
6648 spin_unlock_irqrestore(&priv->lock, flags);
6650 if (!iwl_is_ready_rf(priv)) {
6651 IWL_DEBUG_MAC80211("leave - not ready\n");
6652 mutex_unlock(&priv->mutex);
6656 /* we are restarting association process
6657 * clear RXON_FILTER_ASSOC_MSK bit
6659 if (priv->iw_mode != NL80211_IFTYPE_AP) {
6660 iwl3945_scan_cancel_timeout(priv, 100);
6661 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6662 iwl3945_commit_rxon(priv);
6665 /* Per mac80211.h: This is only used in IBSS mode... */
6666 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6668 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
6669 mutex_unlock(&priv->mutex);
6673 iwl3945_set_rate(priv);
6675 mutex_unlock(&priv->mutex);
6677 IWL_DEBUG_MAC80211("leave\n");
6681 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
6683 struct iwl_priv *priv = hw->priv;
6684 unsigned long flags;
6686 IWL_DEBUG_MAC80211("enter\n");
6688 if (!iwl_is_ready_rf(priv)) {
6689 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6693 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6694 IWL_DEBUG_MAC80211("leave - not IBSS\n");
6698 spin_lock_irqsave(&priv->lock, flags);
6700 if (priv->ibss_beacon)
6701 dev_kfree_skb(priv->ibss_beacon);
6703 priv->ibss_beacon = skb;
6707 IWL_DEBUG_MAC80211("leave\n");
6708 spin_unlock_irqrestore(&priv->lock, flags);
6710 iwl_reset_qos(priv);
6712 iwl3945_post_associate(priv);
6718 /*****************************************************************************
6722 *****************************************************************************/
6724 #ifdef CONFIG_IWL3945_DEBUG
6727 * The following adds a new attribute to the sysfs representation
6728 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
6729 * used for controlling the debug level.
6731 * See the level definitions in iwl for details.
6733 static ssize_t show_debug_level(struct device *d,
6734 struct device_attribute *attr, char *buf)
6736 struct iwl_priv *priv = d->driver_data;
6738 return sprintf(buf, "0x%08X\n", priv->debug_level);
6740 static ssize_t store_debug_level(struct device *d,
6741 struct device_attribute *attr,
6742 const char *buf, size_t count)
6744 struct iwl_priv *priv = d->driver_data;
6748 ret = strict_strtoul(buf, 0, &val);
6750 IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
6752 priv->debug_level = val;
6754 return strnlen(buf, count);
6757 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
6758 show_debug_level, store_debug_level);
6760 #endif /* CONFIG_IWL3945_DEBUG */
6762 static ssize_t show_temperature(struct device *d,
6763 struct device_attribute *attr, char *buf)
6765 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6767 if (!iwl_is_alive(priv))
6770 return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
6773 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
6775 static ssize_t show_tx_power(struct device *d,
6776 struct device_attribute *attr, char *buf)
6778 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6779 return sprintf(buf, "%d\n", priv->user_txpower_limit);
6782 static ssize_t store_tx_power(struct device *d,
6783 struct device_attribute *attr,
6784 const char *buf, size_t count)
6786 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6787 char *p = (char *)buf;
6790 val = simple_strtoul(p, &p, 10);
6792 IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
6794 iwl3945_hw_reg_set_txpower(priv, val);
6799 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
6801 static ssize_t show_flags(struct device *d,
6802 struct device_attribute *attr, char *buf)
6804 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6806 return sprintf(buf, "0x%04X\n", priv->active39_rxon.flags);
6809 static ssize_t store_flags(struct device *d,
6810 struct device_attribute *attr,
6811 const char *buf, size_t count)
6813 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6814 u32 flags = simple_strtoul(buf, NULL, 0);
6816 mutex_lock(&priv->mutex);
6817 if (le32_to_cpu(priv->staging39_rxon.flags) != flags) {
6818 /* Cancel any currently running scans... */
6819 if (iwl3945_scan_cancel_timeout(priv, 100))
6820 IWL_WARN(priv, "Could not cancel scan.\n");
6822 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6824 priv->staging39_rxon.flags = cpu_to_le32(flags);
6825 iwl3945_commit_rxon(priv);
6828 mutex_unlock(&priv->mutex);
6833 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
6835 static ssize_t show_filter_flags(struct device *d,
6836 struct device_attribute *attr, char *buf)
6838 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6840 return sprintf(buf, "0x%04X\n",
6841 le32_to_cpu(priv->active39_rxon.filter_flags));
6844 static ssize_t store_filter_flags(struct device *d,
6845 struct device_attribute *attr,
6846 const char *buf, size_t count)
6848 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6849 u32 filter_flags = simple_strtoul(buf, NULL, 0);
6851 mutex_lock(&priv->mutex);
6852 if (le32_to_cpu(priv->staging39_rxon.filter_flags) != filter_flags) {
6853 /* Cancel any currently running scans... */
6854 if (iwl3945_scan_cancel_timeout(priv, 100))
6855 IWL_WARN(priv, "Could not cancel scan.\n");
6857 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
6858 "0x%04X\n", filter_flags);
6859 priv->staging39_rxon.filter_flags =
6860 cpu_to_le32(filter_flags);
6861 iwl3945_commit_rxon(priv);
6864 mutex_unlock(&priv->mutex);
6869 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
6870 store_filter_flags);
6872 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
6874 static ssize_t show_measurement(struct device *d,
6875 struct device_attribute *attr, char *buf)
6877 struct iwl_priv *priv = dev_get_drvdata(d);
6878 struct iwl_spectrum_notification measure_report;
6879 u32 size = sizeof(measure_report), len = 0, ofs = 0;
6880 u8 *data = (u8 *)&measure_report;
6881 unsigned long flags;
6883 spin_lock_irqsave(&priv->lock, flags);
6884 if (!(priv->measurement_status & MEASUREMENT_READY)) {
6885 spin_unlock_irqrestore(&priv->lock, flags);
6888 memcpy(&measure_report, &priv->measure_report, size);
6889 priv->measurement_status = 0;
6890 spin_unlock_irqrestore(&priv->lock, flags);
6892 while (size && (PAGE_SIZE - len)) {
6893 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
6894 PAGE_SIZE - len, 1);
6896 if (PAGE_SIZE - len)
6900 size -= min(size, 16U);
6906 static ssize_t store_measurement(struct device *d,
6907 struct device_attribute *attr,
6908 const char *buf, size_t count)
6910 struct iwl_priv *priv = dev_get_drvdata(d);
6911 struct ieee80211_measurement_params params = {
6912 .channel = le16_to_cpu(priv->active39_rxon.channel),
6913 .start_time = cpu_to_le64(priv->last_tsf),
6914 .duration = cpu_to_le16(1),
6916 u8 type = IWL_MEASURE_BASIC;
6922 strncpy(buffer, buf, min(sizeof(buffer), count));
6923 channel = simple_strtoul(p, NULL, 0);
6925 params.channel = channel;
6928 while (*p && *p != ' ')
6931 type = simple_strtoul(p + 1, NULL, 0);
6934 IWL_DEBUG_INFO("Invoking measurement of type %d on "
6935 "channel %d (for '%s')\n", type, params.channel, buf);
6936 iwl3945_get_measurement(priv, ¶ms, type);
6941 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
6942 show_measurement, store_measurement);
6943 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
6945 static ssize_t store_retry_rate(struct device *d,
6946 struct device_attribute *attr,
6947 const char *buf, size_t count)
6949 struct iwl_priv *priv = dev_get_drvdata(d);
6951 priv->retry_rate = simple_strtoul(buf, NULL, 0);
6952 if (priv->retry_rate <= 0)
6953 priv->retry_rate = 1;
6958 static ssize_t show_retry_rate(struct device *d,
6959 struct device_attribute *attr, char *buf)
6961 struct iwl_priv *priv = dev_get_drvdata(d);
6962 return sprintf(buf, "%d", priv->retry_rate);
6965 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
6968 static ssize_t store_power_level(struct device *d,
6969 struct device_attribute *attr,
6970 const char *buf, size_t count)
6972 struct iwl_priv *priv = dev_get_drvdata(d);
6976 mode = simple_strtoul(buf, NULL, 0);
6977 mutex_lock(&priv->mutex);
6979 if (!iwl_is_ready(priv)) {
6984 if ((mode < 1) || (mode > IWL39_POWER_LIMIT) ||
6985 (mode == IWL39_POWER_AC))
6986 mode = IWL39_POWER_AC;
6988 mode |= IWL_POWER_ENABLED;
6990 if (mode != priv->power_mode) {
6991 rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode));
6993 IWL_DEBUG_MAC80211("failed setting power mode.\n");
6996 priv->power_mode = mode;
7002 mutex_unlock(&priv->mutex);
7006 #define MAX_WX_STRING 80
7008 /* Values are in microsecond */
7009 static const s32 timeout_duration[] = {
7016 static const s32 period_duration[] = {
7024 static ssize_t show_power_level(struct device *d,
7025 struct device_attribute *attr, char *buf)
7027 struct iwl_priv *priv = dev_get_drvdata(d);
7028 int level = IWL_POWER_LEVEL(priv->power_mode);
7031 p += sprintf(p, "%d ", level);
7033 case IWL_POWER_MODE_CAM:
7034 case IWL39_POWER_AC:
7035 p += sprintf(p, "(AC)");
7037 case IWL39_POWER_BATTERY:
7038 p += sprintf(p, "(BATTERY)");
7042 "(Timeout %dms, Period %dms)",
7043 timeout_duration[level - 1] / 1000,
7044 period_duration[level - 1] / 1000);
7047 if (!(priv->power_mode & IWL_POWER_ENABLED))
7048 p += sprintf(p, " OFF\n");
7050 p += sprintf(p, " \n");
7056 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
7059 static ssize_t show_channels(struct device *d,
7060 struct device_attribute *attr, char *buf)
7062 /* all this shit doesn't belong into sysfs anyway */
7066 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
7068 static ssize_t show_statistics(struct device *d,
7069 struct device_attribute *attr, char *buf)
7071 struct iwl_priv *priv = dev_get_drvdata(d);
7072 u32 size = sizeof(struct iwl3945_notif_statistics);
7073 u32 len = 0, ofs = 0;
7074 u8 *data = (u8 *)&priv->statistics_39;
7077 if (!iwl_is_alive(priv))
7080 mutex_lock(&priv->mutex);
7081 rc = iwl3945_send_statistics_request(priv);
7082 mutex_unlock(&priv->mutex);
7086 "Error sending statistics request: 0x%08X\n", rc);
7090 while (size && (PAGE_SIZE - len)) {
7091 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
7092 PAGE_SIZE - len, 1);
7094 if (PAGE_SIZE - len)
7098 size -= min(size, 16U);
7104 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
7106 static ssize_t show_antenna(struct device *d,
7107 struct device_attribute *attr, char *buf)
7109 struct iwl_priv *priv = dev_get_drvdata(d);
7111 if (!iwl_is_alive(priv))
7114 return sprintf(buf, "%d\n", priv->antenna);
7117 static ssize_t store_antenna(struct device *d,
7118 struct device_attribute *attr,
7119 const char *buf, size_t count)
7122 struct iwl_priv *priv = dev_get_drvdata(d);
7127 if (sscanf(buf, "%1i", &ant) != 1) {
7128 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7132 if ((ant >= 0) && (ant <= 2)) {
7133 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
7134 priv->antenna = (enum iwl3945_antenna)ant;
7136 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
7142 static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
7144 static ssize_t show_status(struct device *d,
7145 struct device_attribute *attr, char *buf)
7147 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
7148 if (!iwl_is_alive(priv))
7150 return sprintf(buf, "0x%08x\n", (int)priv->status);
7153 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
7155 static ssize_t dump_error_log(struct device *d,
7156 struct device_attribute *attr,
7157 const char *buf, size_t count)
7159 char *p = (char *)buf;
7162 iwl3945_dump_nic_error_log((struct iwl_priv *)d->driver_data);
7164 return strnlen(buf, count);
7167 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
7169 static ssize_t dump_event_log(struct device *d,
7170 struct device_attribute *attr,
7171 const char *buf, size_t count)
7173 char *p = (char *)buf;
7176 iwl3945_dump_nic_event_log((struct iwl_priv *)d->driver_data);
7178 return strnlen(buf, count);
7181 static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
7183 /*****************************************************************************
7185 * driver setup and tear down
7187 *****************************************************************************/
7189 static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
7191 priv->workqueue = create_workqueue(DRV_NAME);
7193 init_waitqueue_head(&priv->wait_command_queue);
7195 INIT_WORK(&priv->up, iwl3945_bg_up);
7196 INIT_WORK(&priv->restart, iwl3945_bg_restart);
7197 INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
7198 INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed);
7199 INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
7200 INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan);
7201 INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill);
7202 INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
7203 INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
7204 INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
7205 INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check);
7207 iwl3945_hw_setup_deferred_work(priv);
7209 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
7210 iwl3945_irq_tasklet, (unsigned long)priv);
7213 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
7215 iwl3945_hw_cancel_deferred_work(priv);
7217 cancel_delayed_work_sync(&priv->init_alive_start);
7218 cancel_delayed_work(&priv->scan_check);
7219 cancel_delayed_work(&priv->alive_start);
7220 cancel_work_sync(&priv->beacon_update);
7223 static struct attribute *iwl3945_sysfs_entries[] = {
7224 &dev_attr_antenna.attr,
7225 &dev_attr_channels.attr,
7226 &dev_attr_dump_errors.attr,
7227 &dev_attr_dump_events.attr,
7228 &dev_attr_flags.attr,
7229 &dev_attr_filter_flags.attr,
7230 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7231 &dev_attr_measurement.attr,
7233 &dev_attr_power_level.attr,
7234 &dev_attr_retry_rate.attr,
7235 &dev_attr_statistics.attr,
7236 &dev_attr_status.attr,
7237 &dev_attr_temperature.attr,
7238 &dev_attr_tx_power.attr,
7239 #ifdef CONFIG_IWL3945_DEBUG
7240 &dev_attr_debug_level.attr,
7245 static struct attribute_group iwl3945_attribute_group = {
7246 .name = NULL, /* put in device directory */
7247 .attrs = iwl3945_sysfs_entries,
7250 static struct ieee80211_ops iwl3945_hw_ops = {
7251 .tx = iwl3945_mac_tx,
7252 .start = iwl3945_mac_start,
7253 .stop = iwl3945_mac_stop,
7254 .add_interface = iwl3945_mac_add_interface,
7255 .remove_interface = iwl3945_mac_remove_interface,
7256 .config = iwl3945_mac_config,
7257 .config_interface = iwl3945_mac_config_interface,
7258 .configure_filter = iwl3945_configure_filter,
7259 .set_key = iwl3945_mac_set_key,
7260 .get_tx_stats = iwl3945_mac_get_tx_stats,
7261 .conf_tx = iwl3945_mac_conf_tx,
7262 .reset_tsf = iwl3945_mac_reset_tsf,
7263 .bss_info_changed = iwl3945_bss_info_changed,
7264 .hw_scan = iwl3945_mac_hw_scan
7267 static int iwl3945_init_drv(struct iwl_priv *priv)
7271 priv->retry_rate = 1;
7272 priv->ibss_beacon = NULL;
7274 spin_lock_init(&priv->lock);
7275 spin_lock_init(&priv->power_data.lock);
7276 spin_lock_init(&priv->sta_lock);
7277 spin_lock_init(&priv->hcmd_lock);
7279 INIT_LIST_HEAD(&priv->free_frames);
7281 mutex_init(&priv->mutex);
7283 /* Clear the driver's (not device's) station table */
7284 iwl3945_clear_stations_table(priv);
7286 priv->data_retry_limit = -1;
7287 priv->ieee_channels = NULL;
7288 priv->ieee_rates = NULL;
7289 priv->band = IEEE80211_BAND_2GHZ;
7291 priv->iw_mode = NL80211_IFTYPE_STATION;
7293 iwl_reset_qos(priv);
7295 priv->qos_data.qos_active = 0;
7296 priv->qos_data.qos_cap.val = 0;
7298 priv->rates_mask = IWL_RATES_MASK;
7299 /* If power management is turned on, default to AC mode */
7300 priv->power_mode = IWL_POWER_AC;
7301 priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
7303 ret = iwl3945_init_channel_map(priv);
7305 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
7309 ret = iwl3945_init_geos(priv);
7311 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
7312 goto err_free_channel_map;
7317 err_free_channel_map:
7318 iwl3945_free_channel_map(priv);
7323 static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
7326 struct iwl_priv *priv;
7327 struct ieee80211_hw *hw;
7328 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
7329 unsigned long flags;
7331 /***********************
7332 * 1. Allocating HW data
7333 * ********************/
7335 /* mac80211 allocates memory for this device instance, including
7336 * space for this driver's private structure */
7337 hw = iwl_alloc_all(cfg, &iwl3945_hw_ops);
7339 printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
7344 SET_IEEE80211_DEV(hw, &pdev->dev);
7346 if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
7347 (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
7349 "invalid queues_num, should be between %d and %d\n",
7350 IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
7356 * Disabling hardware scan means that mac80211 will perform scans
7357 * "the hard way", rather than using device's scan.
7359 if (iwl3945_mod_params.disable_hw_scan) {
7360 IWL_DEBUG_INFO("Disabling hw_scan\n");
7361 iwl3945_hw_ops.hw_scan = NULL;
7365 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7367 priv->pci_dev = pdev;
7369 #ifdef CONFIG_IWL3945_DEBUG
7370 priv->debug_level = iwl3945_mod_params.debug;
7371 atomic_set(&priv->restrict_refcnt, 0);
7373 hw->rate_control_algorithm = "iwl-3945-rs";
7374 hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
7376 /* Select antenna (may be helpful if only one antenna is connected) */
7377 priv->antenna = (enum iwl3945_antenna)iwl3945_mod_params.antenna;
7379 /* Tell mac80211 our characteristics */
7380 hw->flags = IEEE80211_HW_SIGNAL_DBM |
7381 IEEE80211_HW_NOISE_DBM;
7383 hw->wiphy->interface_modes =
7384 BIT(NL80211_IFTYPE_STATION) |
7385 BIT(NL80211_IFTYPE_ADHOC);
7387 hw->wiphy->fw_handles_regulatory = true;
7389 /* 4 EDCA QOS priorities */
7392 /***************************
7393 * 2. Initializing PCI bus
7394 * *************************/
7395 if (pci_enable_device(pdev)) {
7397 goto out_ieee80211_free_hw;
7400 pci_set_master(pdev);
7402 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7404 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
7406 IWL_WARN(priv, "No suitable DMA available.\n");
7407 goto out_pci_disable_device;
7410 pci_set_drvdata(pdev, priv);
7411 err = pci_request_regions(pdev, DRV_NAME);
7413 goto out_pci_disable_device;
7415 /***********************
7416 * 3. Read REV Register
7417 * ********************/
7418 priv->hw_base = pci_iomap(pdev, 0, 0);
7419 if (!priv->hw_base) {
7421 goto out_pci_release_regions;
7424 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7425 (unsigned long long) pci_resource_len(pdev, 0));
7426 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
7428 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7429 * PCI Tx retries from interfering with C3 CPU state */
7430 pci_write_config_byte(pdev, 0x41, 0x00);
7433 err = priv->cfg->ops->lib->apm_ops.init(priv);
7435 IWL_DEBUG_INFO("Failed to init APMG\n");
7439 /***********************
7441 * ********************/
7443 /* Read the EEPROM */
7444 err = iwl3945_eeprom_init(priv);
7446 IWL_ERR(priv, "Unable to init EEPROM\n");
7447 goto out_remove_sysfs;
7449 /* MAC Address location in EEPROM same for 3945/4965 */
7450 get_eeprom_mac(priv, priv->mac_addr);
7451 IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr);
7452 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
7454 /***********************
7455 * 5. Setup HW Constants
7456 * ********************/
7457 /* Device-specific setup */
7458 if (iwl3945_hw_set_hw_params(priv)) {
7459 IWL_ERR(priv, "failed to set hw settings\n");
7463 /***********************
7465 * ********************/
7467 err = iwl3945_init_drv(priv);
7469 IWL_ERR(priv, "initializing driver failed\n");
7473 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
7476 /***********************************
7477 * 7. Initialize Module Parameters
7478 * **********************************/
7480 /* Initialize module parameter values here */
7481 /* Disable radio (SW RF KILL) via parameter when loading driver */
7482 if (iwl3945_mod_params.disable) {
7483 set_bit(STATUS_RF_KILL_SW, &priv->status);
7484 IWL_DEBUG_INFO("Radio disabled.\n");
7488 /***********************
7490 * ********************/
7492 spin_lock_irqsave(&priv->lock, flags);
7493 iwl3945_disable_interrupts(priv);
7494 spin_unlock_irqrestore(&priv->lock, flags);
7496 err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7498 IWL_ERR(priv, "failed to create sysfs device attributes\n");
7499 goto out_release_irq;
7502 iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
7503 iwl3945_setup_deferred_work(priv);
7504 iwl3945_setup_rx_handlers(priv);
7506 /***********************
7508 * ********************/
7509 pci_save_state(pdev);
7510 pci_disable_device(pdev);
7512 /*********************************
7513 * 10. Setup and Register mac80211
7514 * *******************************/
7516 err = ieee80211_register_hw(priv->hw);
7518 IWL_ERR(priv, "Failed to register network device: %d\n", err);
7519 goto out_remove_sysfs;
7522 priv->hw->conf.beacon_int = 100;
7523 priv->mac80211_registered = 1;
7525 err = iwl3945_rfkill_init(priv);
7527 IWL_ERR(priv, "Unable to initialize RFKILL system. "
7528 "Ignoring error: %d\n", err);
7533 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7535 iwl3945_free_geos(priv);
7538 destroy_workqueue(priv->workqueue);
7539 priv->workqueue = NULL;
7540 iwl3945_unset_hw_params(priv);
7543 pci_iounmap(pdev, priv->hw_base);
7544 out_pci_release_regions:
7545 pci_release_regions(pdev);
7546 out_pci_disable_device:
7547 pci_disable_device(pdev);
7548 pci_set_drvdata(pdev, NULL);
7549 out_ieee80211_free_hw:
7550 ieee80211_free_hw(priv->hw);
7555 static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
7557 struct iwl_priv *priv = pci_get_drvdata(pdev);
7558 unsigned long flags;
7563 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7565 set_bit(STATUS_EXIT_PENDING, &priv->status);
7567 if (priv->mac80211_registered) {
7568 ieee80211_unregister_hw(priv->hw);
7569 priv->mac80211_registered = 0;
7574 /* make sure we flush any pending irq or
7575 * tasklet for the driver
7577 spin_lock_irqsave(&priv->lock, flags);
7578 iwl3945_disable_interrupts(priv);
7579 spin_unlock_irqrestore(&priv->lock, flags);
7581 iwl_synchronize_irq(priv);
7583 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7585 iwl3945_rfkill_unregister(priv);
7586 iwl3945_dealloc_ucode_pci(priv);
7589 iwl_rx_queue_free(priv, &priv->rxq);
7590 iwl3945_hw_txq_ctx_free(priv);
7592 iwl3945_unset_hw_params(priv);
7593 iwl3945_clear_stations_table(priv);
7595 /*netif_stop_queue(dev); */
7596 flush_workqueue(priv->workqueue);
7598 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
7599 * priv->workqueue... so we can't take down the workqueue
7601 destroy_workqueue(priv->workqueue);
7602 priv->workqueue = NULL;
7604 pci_iounmap(pdev, priv->hw_base);
7605 pci_release_regions(pdev);
7606 pci_disable_device(pdev);
7607 pci_set_drvdata(pdev, NULL);
7609 iwl3945_free_channel_map(priv);
7610 iwl3945_free_geos(priv);
7611 kfree(priv->scan39);
7612 if (priv->ibss_beacon)
7613 dev_kfree_skb(priv->ibss_beacon);
7615 ieee80211_free_hw(priv->hw);
7620 static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state)
7622 struct iwl_priv *priv = pci_get_drvdata(pdev);
7624 if (priv->is_open) {
7625 set_bit(STATUS_IN_SUSPEND, &priv->status);
7626 iwl3945_mac_stop(priv->hw);
7630 pci_set_power_state(pdev, PCI_D3hot);
7635 static int iwl3945_pci_resume(struct pci_dev *pdev)
7637 struct iwl_priv *priv = pci_get_drvdata(pdev);
7639 pci_set_power_state(pdev, PCI_D0);
7642 iwl3945_mac_start(priv->hw);
7644 clear_bit(STATUS_IN_SUSPEND, &priv->status);
7648 #endif /* CONFIG_PM */
7650 /*************** RFKILL FUNCTIONS **********/
7651 #ifdef CONFIG_IWL3945_RFKILL
7652 /* software rf-kill from user */
7653 static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state)
7655 struct iwl_priv *priv = data;
7661 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
7664 IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state);
7665 mutex_lock(&priv->mutex);
7668 case RFKILL_STATE_UNBLOCKED:
7669 if (iwl_is_rfkill_hw(priv)) {
7673 iwl3945_radio_kill_sw(priv, 0);
7675 case RFKILL_STATE_SOFT_BLOCKED:
7676 iwl3945_radio_kill_sw(priv, 1);
7679 IWL_WARN(priv, "received unexpected RFKILL state %d\n", state);
7683 mutex_unlock(&priv->mutex);
7688 int iwl3945_rfkill_init(struct iwl_priv *priv)
7690 struct device *device = wiphy_dev(priv->hw->wiphy);
7693 BUG_ON(device == NULL);
7695 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
7696 priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
7697 if (!priv->rfkill) {
7698 IWL_ERR(priv, "Unable to allocate rfkill device.\n");
7703 priv->rfkill->name = priv->cfg->name;
7704 priv->rfkill->data = priv;
7705 priv->rfkill->state = RFKILL_STATE_UNBLOCKED;
7706 priv->rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill;
7707 priv->rfkill->user_claim_unsupported = 1;
7709 priv->rfkill->dev.class->suspend = NULL;
7710 priv->rfkill->dev.class->resume = NULL;
7712 ret = rfkill_register(priv->rfkill);
7714 IWL_ERR(priv, "Unable to register rfkill: %d\n", ret);
7718 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7722 if (priv->rfkill != NULL)
7723 rfkill_free(priv->rfkill);
7724 priv->rfkill = NULL;
7727 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7731 void iwl3945_rfkill_unregister(struct iwl_priv *priv)
7734 rfkill_unregister(priv->rfkill);
7736 priv->rfkill = NULL;
7739 /* set rf-kill to the right state. */
7740 void iwl3945_rfkill_set_hw_state(struct iwl_priv *priv)
7746 if (iwl_is_rfkill_hw(priv)) {
7747 rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED);
7751 if (!iwl_is_rfkill_sw(priv))
7752 rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED);
7754 rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED);
7758 /*****************************************************************************
7760 * driver and module entry point
7762 *****************************************************************************/
7764 static struct pci_driver iwl3945_driver = {
7766 .id_table = iwl3945_hw_card_ids,
7767 .probe = iwl3945_pci_probe,
7768 .remove = __devexit_p(iwl3945_pci_remove),
7770 .suspend = iwl3945_pci_suspend,
7771 .resume = iwl3945_pci_resume,
7775 static int __init iwl3945_init(void)
7779 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
7780 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
7782 ret = iwl3945_rate_control_register();
7784 printk(KERN_ERR DRV_NAME
7785 "Unable to register rate control algorithm: %d\n", ret);
7789 ret = pci_register_driver(&iwl3945_driver);
7791 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
7792 goto error_register;
7798 iwl3945_rate_control_unregister();
7802 static void __exit iwl3945_exit(void)
7804 pci_unregister_driver(&iwl3945_driver);
7805 iwl3945_rate_control_unregister();
7808 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
7810 module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
7811 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
7812 module_param_named(disable, iwl3945_mod_params.disable, int, 0444);
7813 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
7814 module_param_named(hwcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
7815 MODULE_PARM_DESC(hwcrypto,
7816 "using hardware crypto engine (default 0 [software])\n");
7817 module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
7818 MODULE_PARM_DESC(debug, "debug output mask");
7819 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
7820 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
7822 module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444);
7823 MODULE_PARM_DESC(queues_num, "number of hw queues.");
7825 module_exit(iwl3945_exit);
7826 module_init(iwl3945_init);