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"
51 #include "iwl-commands.h"
53 #include "iwl-3945-fh.h"
54 #include "iwl-helpers.h"
58 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
59 struct iwl3945_tx_queue *txq);
62 * module name, copyright, version, etc.
65 #define DRV_DESCRIPTION \
66 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
68 #ifdef CONFIG_IWL3945_DEBUG
74 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
80 #define IWL39_VERSION "1.2.26k" VD VS
81 #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
82 #define DRV_AUTHOR "<ilw@linux.intel.com>"
83 #define DRV_VERSION IWL39_VERSION
86 MODULE_DESCRIPTION(DRV_DESCRIPTION);
87 MODULE_VERSION(DRV_VERSION);
88 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
89 MODULE_LICENSE("GPL");
91 /* module parameters */
92 struct iwl_mod_params iwl3945_mod_params = {
93 .num_of_queues = IWL39_MAX_NUM_QUEUES,
94 /* the rest are 0 by default */
97 static const struct ieee80211_supported_band *iwl3945_get_band(
98 struct iwl_priv *priv, enum ieee80211_band band)
100 return priv->hw->wiphy->bands[band];
103 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
106 * Theory of operation
108 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
109 * of buffer descriptors, each of which points to one or more data buffers for
110 * the device to read from or fill. Driver and device exchange status of each
111 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
112 * entries in each circular buffer, to protect against confusing empty and full
115 * The device reads or writes the data in the queues via the device's several
116 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
118 * For Tx queue, there are low mark and high mark limits. If, after queuing
119 * the packet for Tx, free space become < low mark, Tx queue stopped. When
120 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
123 * The 3945 operates with six queues: One receive queue, one transmit queue
124 * (#4) for sending commands to the device firmware, and four transmit queues
125 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
126 ***************************************************/
128 int iwl3945_x2_queue_used(const struct iwl_queue *q, int i)
130 return q->write_ptr > q->read_ptr ?
131 (i >= q->read_ptr && i < q->write_ptr) :
132 !(i < q->read_ptr && i >= q->write_ptr);
136 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
138 static int iwl3945_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
139 int count, int slots_num, u32 id)
142 q->n_window = slots_num;
145 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
146 * and iwl_queue_dec_wrap are broken. */
147 BUG_ON(!is_power_of_2(count));
149 /* slots_num must be power-of-two size, otherwise
150 * get_cmd_index is broken. */
151 BUG_ON(!is_power_of_2(slots_num));
153 q->low_mark = q->n_window / 4;
157 q->high_mark = q->n_window / 8;
158 if (q->high_mark < 2)
161 q->write_ptr = q->read_ptr = 0;
167 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
169 static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
170 struct iwl3945_tx_queue *txq, u32 id)
172 struct pci_dev *dev = priv->pci_dev;
174 /* Driver private data, only for Tx (not command) queues,
175 * not shared with device. */
176 if (id != IWL_CMD_QUEUE_NUM) {
177 txq->txb = kmalloc(sizeof(txq->txb[0]) *
178 TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
180 IWL_ERR(priv, "kmalloc for auxiliary BD "
181 "structures failed\n");
187 /* Circular buffer of transmit frame descriptors (TFDs),
188 * shared with device */
189 txq->bd = pci_alloc_consistent(dev,
190 sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX,
194 IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n",
195 sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX);
210 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
212 int iwl3945_tx_queue_init(struct iwl_priv *priv,
213 struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id)
215 struct pci_dev *dev = priv->pci_dev;
220 * Alloc buffer array for commands (Tx or other types of commands).
221 * For the command queue (#4), allocate command space + one big
222 * command for scan, since scan command is very huge; the system will
223 * not have two scans at the same time, so only one is needed.
224 * For data Tx queues (all other queues), no super-size command
227 len = sizeof(struct iwl_cmd) * slots_num;
228 if (txq_id == IWL_CMD_QUEUE_NUM)
229 len += IWL_MAX_SCAN_SIZE;
230 txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
234 /* Alloc driver data array and TFD circular buffer */
235 rc = iwl3945_tx_queue_alloc(priv, txq, txq_id);
237 pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
241 txq->need_update = 0;
243 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
244 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
245 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
247 /* Initialize queue high/low-water, head/tail indexes */
248 iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
250 /* Tell device where to find queue, enable DMA channel. */
251 iwl3945_hw_tx_queue_init(priv, txq);
257 * iwl3945_tx_queue_free - Deallocate DMA queue.
258 * @txq: Transmit queue to deallocate.
260 * Empty queue by removing and destroying all BD's.
262 * 0-fill, but do not free "txq" descriptor structure.
264 void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl3945_tx_queue *txq)
266 struct iwl_queue *q = &txq->q;
267 struct pci_dev *dev = priv->pci_dev;
273 /* first, empty all BD's */
274 for (; q->write_ptr != q->read_ptr;
275 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
276 iwl3945_hw_txq_free_tfd(priv, txq);
278 len = sizeof(struct iwl_cmd) * q->n_window;
279 if (q->id == IWL_CMD_QUEUE_NUM)
280 len += IWL_MAX_SCAN_SIZE;
282 /* De-alloc array of command/tx buffers */
283 pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
285 /* De-alloc circular buffer of TFDs */
287 pci_free_consistent(dev, sizeof(struct iwl3945_tfd_frame) *
288 txq->q.n_bd, txq->bd, txq->q.dma_addr);
290 /* De-alloc array of per-TFD driver data */
294 /* 0-fill queue descriptor structure */
295 memset(txq, 0, sizeof(*txq));
298 /*************** STATION TABLE MANAGEMENT ****
299 * mac80211 should be examined to determine if sta_info is duplicating
300 * the functionality provided here
303 /**************************************************************/
304 #if 0 /* temporary disable till we add real remove station */
306 * iwl3945_remove_station - Remove driver's knowledge of station.
308 * NOTE: This does not remove station from device's station table.
310 static u8 iwl3945_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
312 int index = IWL_INVALID_STATION;
316 spin_lock_irqsave(&priv->sta_lock, flags);
320 else if (is_broadcast_ether_addr(addr))
321 index = priv->hw_params.bcast_sta_id;
323 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
324 if (priv->stations_39[i].used &&
325 !compare_ether_addr(priv->stations_39[i].sta.sta.addr,
331 if (unlikely(index == IWL_INVALID_STATION))
334 if (priv->stations_39[index].used) {
335 priv->stations_39[index].used = 0;
336 priv->num_stations--;
339 BUG_ON(priv->num_stations < 0);
342 spin_unlock_irqrestore(&priv->sta_lock, flags);
348 * iwl3945_clear_stations_table - Clear the driver's station table
350 * NOTE: This does not clear or otherwise alter the device's station table.
352 static void iwl3945_clear_stations_table(struct iwl_priv *priv)
356 spin_lock_irqsave(&priv->sta_lock, flags);
358 priv->num_stations = 0;
359 memset(priv->stations_39, 0, sizeof(priv->stations_39));
361 spin_unlock_irqrestore(&priv->sta_lock, flags);
365 * iwl3945_add_station - Add station to station tables in driver and device
367 u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags)
370 int index = IWL_INVALID_STATION;
371 struct iwl3945_station_entry *station;
372 unsigned long flags_spin;
375 spin_lock_irqsave(&priv->sta_lock, flags_spin);
378 else if (is_broadcast_ether_addr(addr))
379 index = priv->hw_params.bcast_sta_id;
381 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
382 if (!compare_ether_addr(priv->stations_39[i].sta.sta.addr,
388 if (!priv->stations_39[i].used &&
389 index == IWL_INVALID_STATION)
393 /* These two conditions has the same outcome but keep them separate
394 since they have different meaning */
395 if (unlikely(index == IWL_INVALID_STATION)) {
396 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
400 if (priv->stations_39[index].used &&
401 !compare_ether_addr(priv->stations_39[index].sta.sta.addr, addr)) {
402 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
406 IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index, addr);
407 station = &priv->stations_39[index];
409 priv->num_stations++;
411 /* Set up the REPLY_ADD_STA command to send to device */
412 memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd));
413 memcpy(station->sta.sta.addr, addr, ETH_ALEN);
414 station->sta.mode = 0;
415 station->sta.sta.sta_id = index;
416 station->sta.station_flags = 0;
418 if (priv->band == IEEE80211_BAND_5GHZ)
419 rate = IWL_RATE_6M_PLCP;
421 rate = IWL_RATE_1M_PLCP;
423 /* Turn on both antennas for the station... */
424 station->sta.rate_n_flags =
425 iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK);
427 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
429 /* Add station to device's station table */
430 iwl3945_send_add_station(priv, &station->sta, flags);
436 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
438 #define IWL_CMD(x) case x: return #x
439 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
442 * iwl3945_enqueue_hcmd - enqueue a uCode command
443 * @priv: device private data point
444 * @cmd: a point to the ucode command structure
446 * The function returns < 0 values to indicate the operation is
447 * failed. On success, it turns the index (> 0) of command in the
450 static int iwl3945_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
452 struct iwl3945_tx_queue *txq = &priv->txq39[IWL_CMD_QUEUE_NUM];
453 struct iwl_queue *q = &txq->q;
454 struct iwl3945_tfd_frame *tfd;
456 struct iwl_cmd *out_cmd;
458 u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
459 dma_addr_t phys_addr;
465 /* If any of the command structures end up being larger than
466 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
467 * we will need to increase the size of the TFD entries */
468 BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
469 !(cmd->meta.flags & CMD_SIZE_HUGE));
472 if (iwl_is_rfkill(priv)) {
473 IWL_DEBUG_INFO("Not sending command - RF KILL");
477 if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
478 IWL_ERR(priv, "No space for Tx\n");
482 spin_lock_irqsave(&priv->hcmd_lock, flags);
484 tfd = &txq->bd[q->write_ptr];
485 memset(tfd, 0, sizeof(*tfd));
487 control_flags = (u32 *) 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 phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
506 offsetof(struct iwl_cmd, hdr);
507 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
509 pad = U32_PAD(cmd->len);
510 count = TFD_CTL_COUNT_GET(*control_flags);
511 *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad);
513 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
514 "%d bytes at %d[%d]:%d\n",
515 get_cmd_string(out_cmd->hdr.cmd),
516 out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
517 fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
519 txq->need_update = 1;
521 /* Increment and update queue's write index */
522 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
523 ret = iwl3945_tx_queue_update_write_ptr(priv, txq);
525 spin_unlock_irqrestore(&priv->hcmd_lock, flags);
526 return ret ? ret : idx;
529 static int iwl3945_send_cmd_async(struct iwl_priv *priv,
530 struct iwl_host_cmd *cmd)
534 BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
536 /* An asynchronous command can not expect an SKB to be set. */
537 BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
539 /* An asynchronous command MUST have a callback. */
540 BUG_ON(!cmd->meta.u.callback);
542 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
545 ret = iwl3945_enqueue_hcmd(priv, cmd);
548 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
549 get_cmd_string(cmd->id), ret);
555 static int iwl3945_send_cmd_sync(struct iwl_priv *priv,
556 struct iwl_host_cmd *cmd)
561 BUG_ON(cmd->meta.flags & CMD_ASYNC);
563 /* A synchronous command can not have a callback set. */
564 BUG_ON(cmd->meta.u.callback != NULL);
566 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) {
568 "Error sending %s: Already sending a host command\n",
569 get_cmd_string(cmd->id));
574 set_bit(STATUS_HCMD_ACTIVE, &priv->status);
576 if (cmd->meta.flags & CMD_WANT_SKB)
577 cmd->meta.source = &cmd->meta;
579 cmd_idx = iwl3945_enqueue_hcmd(priv, cmd);
583 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
584 get_cmd_string(cmd->id), ret);
588 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
589 !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
590 HOST_COMPLETE_TIMEOUT);
592 if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
593 IWL_ERR(priv, "Error sending %s: time out after %dms\n",
594 get_cmd_string(cmd->id),
595 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
597 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
603 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
604 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
605 get_cmd_string(cmd->id));
609 if (test_bit(STATUS_FW_ERROR, &priv->status)) {
610 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
611 get_cmd_string(cmd->id));
615 if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
616 IWL_ERR(priv, "Error: Response NULL in '%s'\n",
617 get_cmd_string(cmd->id));
626 if (cmd->meta.flags & CMD_WANT_SKB) {
627 struct iwl_cmd *qcmd;
629 /* Cancel the CMD_WANT_SKB flag for the cmd in the
630 * TX cmd queue. Otherwise in case the cmd comes
631 * in later, it will possibly set an invalid
632 * address (cmd->meta.source). */
633 qcmd = &priv->txq39[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
634 qcmd->meta.flags &= ~CMD_WANT_SKB;
637 if (cmd->meta.u.skb) {
638 dev_kfree_skb_any(cmd->meta.u.skb);
639 cmd->meta.u.skb = NULL;
642 clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status);
646 int iwl3945_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
648 if (cmd->meta.flags & CMD_ASYNC)
649 return iwl3945_send_cmd_async(priv, cmd);
651 return iwl3945_send_cmd_sync(priv, cmd);
654 int iwl3945_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
656 struct iwl_host_cmd cmd = {
662 return iwl3945_send_cmd_sync(priv, &cmd);
665 static int __must_check iwl3945_send_cmd_u32(struct iwl_priv *priv, u8 id, u32 val)
667 struct iwl_host_cmd cmd = {
673 return iwl3945_send_cmd_sync(priv, &cmd);
676 int iwl3945_send_statistics_request(struct iwl_priv *priv)
678 return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
682 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
683 * @band: 2.4 or 5 GHz band
684 * @channel: Any channel valid for the requested band
686 * In addition to setting the staging RXON, priv->band is also set.
688 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
689 * in the staging RXON flag structure based on the band
691 static int iwl3945_set_rxon_channel(struct iwl_priv *priv,
692 enum ieee80211_band band,
695 if (!iwl3945_get_channel_info(priv, band, channel)) {
696 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
701 if ((le16_to_cpu(priv->staging39_rxon.channel) == channel) &&
702 (priv->band == band))
705 priv->staging39_rxon.channel = cpu_to_le16(channel);
706 if (band == IEEE80211_BAND_5GHZ)
707 priv->staging39_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
709 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
713 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band);
719 * iwl3945_check_rxon_cmd - validate RXON structure is valid
721 * NOTE: This is really only useful during development and can eventually
722 * be #ifdef'd out once the driver is stable and folks aren't actively
725 static int iwl3945_check_rxon_cmd(struct iwl_priv *priv)
729 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
731 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
732 error |= le32_to_cpu(rxon->flags &
733 (RXON_FLG_TGJ_NARROW_BAND_MSK |
734 RXON_FLG_RADAR_DETECT_MSK));
736 IWL_WARN(priv, "check 24G fields %d | %d\n",
739 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
740 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
742 IWL_WARN(priv, "check 52 fields %d | %d\n",
744 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
746 IWL_WARN(priv, "check 52 CCK %d | %d\n",
749 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
751 IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
753 /* make sure basic rates 6Mbps and 1Mbps are supported */
754 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
755 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
757 IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
759 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
761 IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
763 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
764 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
766 IWL_WARN(priv, "check CCK and short slot %d | %d\n",
769 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
770 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
772 IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
775 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
776 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
778 IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
781 if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
782 error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK |
783 RXON_FLG_ANT_A_MSK)) == 0);
785 IWL_WARN(priv, "check antenna %d %d\n", counter++, error);
788 IWL_WARN(priv, "Tuning to channel %d\n",
789 le16_to_cpu(rxon->channel));
792 IWL_ERR(priv, "Not a valid rxon_assoc_cmd field values\n");
799 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
800 * @priv: staging_rxon is compared to active_rxon
802 * If the RXON structure is changing enough to require a new tune,
803 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
804 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
806 static int iwl3945_full_rxon_required(struct iwl_priv *priv)
809 /* These items are only settable from the full RXON command */
810 if (!(iwl3945_is_associated(priv)) ||
811 compare_ether_addr(priv->staging39_rxon.bssid_addr,
812 priv->active39_rxon.bssid_addr) ||
813 compare_ether_addr(priv->staging39_rxon.node_addr,
814 priv->active39_rxon.node_addr) ||
815 compare_ether_addr(priv->staging39_rxon.wlap_bssid_addr,
816 priv->active39_rxon.wlap_bssid_addr) ||
817 (priv->staging39_rxon.dev_type != priv->active39_rxon.dev_type) ||
818 (priv->staging39_rxon.channel != priv->active39_rxon.channel) ||
819 (priv->staging39_rxon.air_propagation !=
820 priv->active39_rxon.air_propagation) ||
821 (priv->staging39_rxon.assoc_id != priv->active39_rxon.assoc_id))
824 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
825 * be updated with the RXON_ASSOC command -- however only some
826 * flag transitions are allowed using RXON_ASSOC */
828 /* Check if we are not switching bands */
829 if ((priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
830 (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK))
833 /* Check if we are switching association toggle */
834 if ((priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
835 (priv->active39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
841 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
844 struct iwl_rx_packet *res = NULL;
845 struct iwl3945_rxon_assoc_cmd rxon_assoc;
846 struct iwl_host_cmd cmd = {
847 .id = REPLY_RXON_ASSOC,
848 .len = sizeof(rxon_assoc),
849 .meta.flags = CMD_WANT_SKB,
852 const struct iwl3945_rxon_cmd *rxon1 = &priv->staging39_rxon;
853 const struct iwl3945_rxon_cmd *rxon2 = &priv->active39_rxon;
855 if ((rxon1->flags == rxon2->flags) &&
856 (rxon1->filter_flags == rxon2->filter_flags) &&
857 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
858 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
859 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
863 rxon_assoc.flags = priv->staging39_rxon.flags;
864 rxon_assoc.filter_flags = priv->staging39_rxon.filter_flags;
865 rxon_assoc.ofdm_basic_rates = priv->staging39_rxon.ofdm_basic_rates;
866 rxon_assoc.cck_basic_rates = priv->staging39_rxon.cck_basic_rates;
867 rxon_assoc.reserved = 0;
869 rc = iwl3945_send_cmd_sync(priv, &cmd);
873 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
874 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
875 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
879 priv->alloc_rxb_skb--;
880 dev_kfree_skb_any(cmd.meta.u.skb);
886 * iwl3945_commit_rxon - commit staging_rxon to hardware
888 * The RXON command in staging_rxon is committed to the hardware and
889 * the active_rxon structure is updated with the new data. This
890 * function correctly transitions out of the RXON_ASSOC_MSK state if
891 * a HW tune is required based on the RXON structure changes.
893 static int iwl3945_commit_rxon(struct iwl_priv *priv)
895 /* cast away the const for active_rxon in this function */
896 struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active39_rxon;
899 if (!iwl_is_alive(priv))
902 /* always get timestamp with Rx frame */
903 priv->staging39_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
906 priv->staging39_rxon.flags &=
907 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
908 priv->staging39_rxon.flags |= iwl3945_get_antenna_flags(priv);
910 rc = iwl3945_check_rxon_cmd(priv);
912 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
916 /* If we don't need to send a full RXON, we can use
917 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
918 * and other flags for the current radio configuration. */
919 if (!iwl3945_full_rxon_required(priv)) {
920 rc = iwl3945_send_rxon_assoc(priv);
922 IWL_ERR(priv, "Error setting RXON_ASSOC "
923 "configuration (%d).\n", rc);
927 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
932 /* If we are currently associated and the new config requires
933 * an RXON_ASSOC and the new config wants the associated mask enabled,
934 * we must clear the associated from the active configuration
935 * before we apply the new config */
936 if (iwl3945_is_associated(priv) &&
937 (priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
938 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
939 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
941 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
942 sizeof(struct iwl3945_rxon_cmd),
943 &priv->active39_rxon);
945 /* If the mask clearing failed then we set
946 * active_rxon back to what it was previously */
948 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
949 IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
950 "configuration (%d).\n", rc);
955 IWL_DEBUG_INFO("Sending RXON\n"
956 "* with%s RXON_FILTER_ASSOC_MSK\n"
959 ((priv->staging39_rxon.filter_flags &
960 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
961 le16_to_cpu(priv->staging39_rxon.channel),
962 priv->staging_rxon.bssid_addr);
964 /* Apply the new configuration */
965 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
966 sizeof(struct iwl3945_rxon_cmd), &priv->staging39_rxon);
968 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
972 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
974 iwl3945_clear_stations_table(priv);
976 /* If we issue a new RXON command which required a tune then we must
977 * send a new TXPOWER command or we won't be able to Tx any frames */
978 rc = iwl3945_hw_reg_send_txpower(priv);
980 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
984 /* Add the broadcast address so we can send broadcast frames */
985 if (iwl3945_add_station(priv, iwl_bcast_addr, 0, 0) ==
986 IWL_INVALID_STATION) {
987 IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
991 /* If we have set the ASSOC_MSK and we are in BSS mode then
992 * add the IWL_AP_ID to the station rate table */
993 if (iwl3945_is_associated(priv) &&
994 (priv->iw_mode == NL80211_IFTYPE_STATION))
995 if (iwl3945_add_station(priv, priv->active39_rxon.bssid_addr, 1, 0)
996 == IWL_INVALID_STATION) {
997 IWL_ERR(priv, "Error adding AP address for transmit\n");
1001 /* Init the hardware's rate fallback order based on the band */
1002 rc = iwl3945_init_hw_rate_table(priv);
1004 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
1011 static int iwl3945_send_bt_config(struct iwl_priv *priv)
1013 struct iwl_bt_cmd bt_cmd = {
1021 return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG,
1022 sizeof(bt_cmd), &bt_cmd);
1025 static int iwl3945_send_scan_abort(struct iwl_priv *priv)
1028 struct iwl_rx_packet *res;
1029 struct iwl_host_cmd cmd = {
1030 .id = REPLY_SCAN_ABORT_CMD,
1031 .meta.flags = CMD_WANT_SKB,
1034 /* If there isn't a scan actively going on in the hardware
1035 * then we are in between scan bands and not actually
1036 * actively scanning, so don't send the abort command */
1037 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
1038 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1042 rc = iwl3945_send_cmd_sync(priv, &cmd);
1044 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1048 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1049 if (res->u.status != CAN_ABORT_STATUS) {
1050 /* The scan abort will return 1 for success or
1051 * 2 for "failure". A failure condition can be
1052 * due to simply not being in an active scan which
1053 * can occur if we send the scan abort before we
1054 * the microcode has notified us that a scan is
1056 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
1057 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
1058 clear_bit(STATUS_SCAN_HW, &priv->status);
1061 dev_kfree_skb_any(cmd.meta.u.skb);
1066 static int iwl3945_card_state_sync_callback(struct iwl_priv *priv,
1067 struct iwl_cmd *cmd,
1068 struct sk_buff *skb)
1076 * Use: Sets the device's internal card state to enable, disable, or halt
1078 * When in the 'enable' state the card operates as normal.
1079 * When in the 'disable' state, the card enters into a low power mode.
1080 * When in the 'halt' state, the card is shut down and must be fully
1081 * restarted to come back on.
1083 static int iwl3945_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
1085 struct iwl_host_cmd cmd = {
1086 .id = REPLY_CARD_STATE_CMD,
1089 .meta.flags = meta_flag,
1092 if (meta_flag & CMD_ASYNC)
1093 cmd.meta.u.callback = iwl3945_card_state_sync_callback;
1095 return iwl3945_send_cmd(priv, &cmd);
1098 static int iwl3945_add_sta_sync_callback(struct iwl_priv *priv,
1099 struct iwl_cmd *cmd, struct sk_buff *skb)
1101 struct iwl_rx_packet *res = NULL;
1104 IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
1108 res = (struct iwl_rx_packet *)skb->data;
1109 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1110 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1115 switch (res->u.add_sta.status) {
1116 case ADD_STA_SUCCESS_MSK:
1122 /* We didn't cache the SKB; let the caller free it */
1126 int iwl3945_send_add_station(struct iwl_priv *priv,
1127 struct iwl3945_addsta_cmd *sta, u8 flags)
1129 struct iwl_rx_packet *res = NULL;
1131 struct iwl_host_cmd cmd = {
1132 .id = REPLY_ADD_STA,
1133 .len = sizeof(struct iwl3945_addsta_cmd),
1134 .meta.flags = flags,
1138 if (flags & CMD_ASYNC)
1139 cmd.meta.u.callback = iwl3945_add_sta_sync_callback;
1141 cmd.meta.flags |= CMD_WANT_SKB;
1143 rc = iwl3945_send_cmd(priv, &cmd);
1145 if (rc || (flags & CMD_ASYNC))
1148 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
1149 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
1150 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1156 switch (res->u.add_sta.status) {
1157 case ADD_STA_SUCCESS_MSK:
1158 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1162 IWL_WARN(priv, "REPLY_ADD_STA failed\n");
1167 priv->alloc_rxb_skb--;
1168 dev_kfree_skb_any(cmd.meta.u.skb);
1173 static int iwl3945_update_sta_key_info(struct iwl_priv *priv,
1174 struct ieee80211_key_conf *keyconf,
1177 unsigned long flags;
1178 __le16 key_flags = 0;
1180 switch (keyconf->alg) {
1182 key_flags |= STA_KEY_FLG_CCMP;
1183 key_flags |= cpu_to_le16(
1184 keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
1185 key_flags &= ~STA_KEY_FLG_INVALID;
1192 spin_lock_irqsave(&priv->sta_lock, flags);
1193 priv->stations_39[sta_id].keyinfo.alg = keyconf->alg;
1194 priv->stations_39[sta_id].keyinfo.keylen = keyconf->keylen;
1195 memcpy(priv->stations_39[sta_id].keyinfo.key, keyconf->key,
1198 memcpy(priv->stations_39[sta_id].sta.key.key, keyconf->key,
1200 priv->stations_39[sta_id].sta.key.key_flags = key_flags;
1201 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1202 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1204 spin_unlock_irqrestore(&priv->sta_lock, flags);
1206 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1207 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
1211 static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
1213 unsigned long flags;
1215 spin_lock_irqsave(&priv->sta_lock, flags);
1216 memset(&priv->stations_39[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key));
1217 memset(&priv->stations_39[sta_id].sta.key, 0,
1218 sizeof(struct iwl4965_keyinfo));
1219 priv->stations_39[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
1220 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1221 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1222 spin_unlock_irqrestore(&priv->sta_lock, flags);
1224 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1225 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
1229 static void iwl3945_clear_free_frames(struct iwl_priv *priv)
1231 struct list_head *element;
1233 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1234 priv->frames_count);
1236 while (!list_empty(&priv->free_frames)) {
1237 element = priv->free_frames.next;
1239 kfree(list_entry(element, struct iwl3945_frame, list));
1240 priv->frames_count--;
1243 if (priv->frames_count) {
1244 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
1245 priv->frames_count);
1246 priv->frames_count = 0;
1250 static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
1252 struct iwl3945_frame *frame;
1253 struct list_head *element;
1254 if (list_empty(&priv->free_frames)) {
1255 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
1257 IWL_ERR(priv, "Could not allocate frame!\n");
1261 priv->frames_count++;
1265 element = priv->free_frames.next;
1267 return list_entry(element, struct iwl3945_frame, list);
1270 static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
1272 memset(frame, 0, sizeof(*frame));
1273 list_add(&frame->list, &priv->free_frames);
1276 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
1277 struct ieee80211_hdr *hdr,
1281 if (!iwl3945_is_associated(priv) || !priv->ibss_beacon ||
1282 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
1283 (priv->iw_mode != NL80211_IFTYPE_AP)))
1286 if (priv->ibss_beacon->len > left)
1289 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
1291 return priv->ibss_beacon->len;
1294 static u8 iwl3945_rate_get_lowest_plcp(struct iwl_priv *priv)
1300 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1301 rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
1303 rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
1305 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
1306 i = iwl3945_rates[i].next_ieee) {
1307 if (rate_mask & (1 << i))
1308 return iwl3945_rates[i].plcp;
1311 /* No valid rate was found. Assign the lowest one */
1312 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1313 return IWL_RATE_1M_PLCP;
1315 return IWL_RATE_6M_PLCP;
1318 static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
1320 struct iwl3945_frame *frame;
1321 unsigned int frame_size;
1325 frame = iwl3945_get_free_frame(priv);
1328 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
1333 rate = iwl3945_rate_get_lowest_plcp(priv);
1335 frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
1337 rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
1340 iwl3945_free_frame(priv, frame);
1345 /******************************************************************************
1347 * EEPROM related functions
1349 ******************************************************************************/
1351 static void get_eeprom_mac(struct iwl_priv *priv, u8 *mac)
1353 memcpy(mac, priv->eeprom39.mac_address, 6);
1357 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1358 * embedded controller) as EEPROM reader; each read is a series of pulses
1359 * to/from the EEPROM chip, not a single event, so even reads could conflict
1360 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1361 * simply claims ownership, which should be safe when this function is called
1362 * (i.e. before loading uCode!).
1364 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
1366 _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
1371 * iwl3945_eeprom_init - read EEPROM contents
1373 * Load the EEPROM contents from adapter into priv->eeprom39
1375 * NOTE: This routine uses the non-debug IO access functions.
1377 int iwl3945_eeprom_init(struct iwl_priv *priv)
1379 u16 *e = (u16 *)&priv->eeprom39;
1380 u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
1381 int sz = sizeof(priv->eeprom39);
1385 /* The EEPROM structure has several padding buffers within it
1386 * and when adding new EEPROM maps is subject to programmer errors
1387 * which may be very difficult to identify without explicitly
1388 * checking the resulting size of the eeprom map. */
1389 BUILD_BUG_ON(sizeof(priv->eeprom39) != IWL_EEPROM_IMAGE_SIZE);
1391 if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
1392 IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
1396 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1397 ret = iwl3945_eeprom_acquire_semaphore(priv);
1399 IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
1403 /* eeprom is an array of 16bit values */
1404 for (addr = 0; addr < sz; addr += sizeof(u16)) {
1407 _iwl_write32(priv, CSR_EEPROM_REG,
1408 CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
1409 _iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
1410 ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
1411 CSR_EEPROM_REG_READ_VALID_MSK,
1412 IWL_EEPROM_ACCESS_TIMEOUT);
1414 IWL_ERR(priv, "Time out reading EEPROM[%d]\n", addr);
1418 r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
1419 e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
1425 static void iwl3945_unset_hw_params(struct iwl_priv *priv)
1427 if (priv->shared_virt)
1428 pci_free_consistent(priv->pci_dev,
1429 sizeof(struct iwl3945_shared),
1435 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1437 * return : set the bit for each supported rate insert in ie
1439 static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate,
1440 u16 basic_rate, int *left)
1442 u16 ret_rates = 0, bit;
1447 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
1448 if (bit & supported_rate) {
1450 rates[*cnt] = iwl3945_rates[i].ieee |
1451 ((bit & basic_rate) ? 0x80 : 0x00);
1455 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
1464 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1466 static u16 iwl3945_fill_probe_req(struct iwl_priv *priv,
1467 struct ieee80211_mgmt *frame,
1472 u16 active_rates, ret_rates, cck_rates;
1474 /* Make sure there is enough space for the probe request,
1475 * two mandatory IEs and the data */
1481 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
1482 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
1483 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
1484 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
1485 frame->seq_ctrl = 0;
1487 /* fill in our indirect SSID IE */
1494 pos = &(frame->u.probe_req.variable[0]);
1495 *pos++ = WLAN_EID_SSID;
1498 /* fill in supported rate */
1504 /* ... fill it in... */
1505 *pos++ = WLAN_EID_SUPP_RATES;
1508 priv->active_rate = priv->rates_mask;
1509 active_rates = priv->active_rate;
1510 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
1512 cck_rates = IWL_CCK_RATES_MASK & active_rates;
1513 ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates,
1514 priv->active_rate_basic, &left);
1515 active_rates &= ~ret_rates;
1517 ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates,
1518 priv->active_rate_basic, &left);
1519 active_rates &= ~ret_rates;
1523 if (active_rates == 0)
1526 /* fill in supported extended rate */
1531 /* ... fill it in... */
1532 *pos++ = WLAN_EID_EXT_SUPP_RATES;
1534 iwl3945_supported_rate_to_ie(pos, active_rates,
1535 priv->active_rate_basic, &left);
1546 static int iwl3945_send_qos_params_command(struct iwl_priv *priv,
1547 struct iwl_qosparam_cmd *qos)
1550 return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM,
1551 sizeof(struct iwl_qosparam_cmd), qos);
1554 static void iwl3945_activate_qos(struct iwl_priv *priv, u8 force)
1556 unsigned long flags;
1558 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1561 spin_lock_irqsave(&priv->lock, flags);
1562 priv->qos_data.def_qos_parm.qos_flags = 0;
1564 if (priv->qos_data.qos_cap.q_AP.queue_request &&
1565 !priv->qos_data.qos_cap.q_AP.txop_request)
1566 priv->qos_data.def_qos_parm.qos_flags |=
1567 QOS_PARAM_FLG_TXOP_TYPE_MSK;
1569 if (priv->qos_data.qos_active)
1570 priv->qos_data.def_qos_parm.qos_flags |=
1571 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
1573 spin_unlock_irqrestore(&priv->lock, flags);
1575 if (force || iwl3945_is_associated(priv)) {
1576 IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n",
1577 priv->qos_data.qos_active);
1579 iwl3945_send_qos_params_command(priv,
1580 &(priv->qos_data.def_qos_parm));
1585 * Power management (not Tx power!) functions
1587 #define MSEC_TO_USEC 1024
1590 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1591 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1592 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1593 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1594 __constant_cpu_to_le32(X1), \
1595 __constant_cpu_to_le32(X2), \
1596 __constant_cpu_to_le32(X3), \
1597 __constant_cpu_to_le32(X4)}
1599 /* default power management (not Tx power) table values */
1601 static struct iwl_power_vec_entry range_0[IWL39_POWER_AC] = {
1602 {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1603 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1604 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1605 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1606 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1607 {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1611 static struct iwl_power_vec_entry range_1[IWL39_POWER_AC] = {
1612 {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1613 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1614 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1615 {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1616 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1617 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1618 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1619 {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1620 {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1621 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1624 int iwl3945_power_init_handle(struct iwl_priv *priv)
1627 struct iwl3945_power_mgr *pow_data;
1628 int size = sizeof(struct iwl_power_vec_entry) * IWL39_POWER_AC;
1631 IWL_DEBUG_POWER("Initialize power \n");
1633 pow_data = &(priv->power_data_39);
1635 memset(pow_data, 0, sizeof(*pow_data));
1637 pow_data->active_index = IWL_POWER_RANGE_0;
1638 pow_data->dtim_val = 0xffff;
1640 memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
1641 memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
1643 rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
1647 struct iwl_powertable_cmd *cmd;
1649 IWL_DEBUG_POWER("adjust power command flags\n");
1651 for (i = 0; i < IWL39_POWER_AC; i++) {
1652 cmd = &pow_data->pwr_range_0[i].cmd;
1655 cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
1657 cmd->flags |= IWL_POWER_PCI_PM_MSK;
1663 static int iwl3945_update_power_cmd(struct iwl_priv *priv,
1664 struct iwl_powertable_cmd *cmd, u32 mode)
1669 struct iwl_power_vec_entry *range;
1671 struct iwl3945_power_mgr *pow_data;
1673 if (mode > IWL_POWER_INDEX_5) {
1674 IWL_DEBUG_POWER("Error invalid power mode \n");
1677 pow_data = &(priv->power_data_39);
1679 if (pow_data->active_index == IWL_POWER_RANGE_0)
1680 range = &pow_data->pwr_range_0[0];
1682 range = &pow_data->pwr_range_1[1];
1684 memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd));
1686 #ifdef IWL_MAC80211_DISABLE
1687 if (priv->assoc_network != NULL) {
1688 unsigned long flags;
1690 period = priv->assoc_network->tim.tim_period;
1692 #endif /*IWL_MAC80211_DISABLE */
1693 skip = range[mode].no_dtim;
1702 cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
1704 __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
1705 max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
1706 cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
1709 for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
1710 if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
1711 cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
1714 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
1715 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
1716 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
1717 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1718 le32_to_cpu(cmd->sleep_interval[0]),
1719 le32_to_cpu(cmd->sleep_interval[1]),
1720 le32_to_cpu(cmd->sleep_interval[2]),
1721 le32_to_cpu(cmd->sleep_interval[3]),
1722 le32_to_cpu(cmd->sleep_interval[4]));
1727 static int iwl3945_send_power_mode(struct iwl_priv *priv, u32 mode)
1729 u32 uninitialized_var(final_mode);
1731 struct iwl_powertable_cmd cmd;
1733 /* If on battery, set to 3,
1734 * if plugged into AC power, set to CAM ("continuously aware mode"),
1735 * else user level */
1737 case IWL39_POWER_BATTERY:
1738 final_mode = IWL_POWER_INDEX_3;
1740 case IWL39_POWER_AC:
1741 final_mode = IWL_POWER_MODE_CAM;
1748 iwl3945_update_power_cmd(priv, &cmd, final_mode);
1750 /* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
1751 rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD,
1752 sizeof(struct iwl3945_powertable_cmd), &cmd);
1754 if (final_mode == IWL_POWER_MODE_CAM)
1755 clear_bit(STATUS_POWER_PMI, &priv->status);
1757 set_bit(STATUS_POWER_PMI, &priv->status);
1763 * iwl3945_scan_cancel - Cancel any currently executing HW scan
1765 * NOTE: priv->mutex is not required before calling this function
1767 static int iwl3945_scan_cancel(struct iwl_priv *priv)
1769 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
1770 clear_bit(STATUS_SCANNING, &priv->status);
1774 if (test_bit(STATUS_SCANNING, &priv->status)) {
1775 if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1776 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1777 set_bit(STATUS_SCAN_ABORTING, &priv->status);
1778 queue_work(priv->workqueue, &priv->abort_scan);
1781 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1783 return test_bit(STATUS_SCANNING, &priv->status);
1790 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
1791 * @ms: amount of time to wait (in milliseconds) for scan to abort
1793 * NOTE: priv->mutex must be held before calling this function
1795 static int iwl3945_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
1797 unsigned long now = jiffies;
1800 ret = iwl3945_scan_cancel(priv);
1802 mutex_unlock(&priv->mutex);
1803 while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
1804 test_bit(STATUS_SCANNING, &priv->status))
1806 mutex_lock(&priv->mutex);
1808 return test_bit(STATUS_SCANNING, &priv->status);
1814 #define MAX_UCODE_BEACON_INTERVAL 1024
1815 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1817 static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
1820 u16 beacon_factor = 0;
1823 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
1824 / MAX_UCODE_BEACON_INTERVAL;
1825 new_val = beacon_val / beacon_factor;
1827 return cpu_to_le16(new_val);
1830 static void iwl3945_setup_rxon_timing(struct iwl_priv *priv)
1832 u64 interval_tm_unit;
1834 unsigned long flags;
1835 struct ieee80211_conf *conf = NULL;
1838 conf = ieee80211_get_hw_conf(priv->hw);
1840 spin_lock_irqsave(&priv->lock, flags);
1841 priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
1842 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
1844 tsf = priv->timestamp;
1846 beacon_int = priv->beacon_int;
1847 spin_unlock_irqrestore(&priv->lock, flags);
1849 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
1850 if (beacon_int == 0) {
1851 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
1852 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
1854 priv->rxon_timing.beacon_interval =
1855 cpu_to_le16(beacon_int);
1856 priv->rxon_timing.beacon_interval =
1857 iwl3945_adjust_beacon_interval(
1858 le16_to_cpu(priv->rxon_timing.beacon_interval));
1861 priv->rxon_timing.atim_window = 0;
1863 priv->rxon_timing.beacon_interval =
1864 iwl3945_adjust_beacon_interval(conf->beacon_int);
1865 /* TODO: we need to get atim_window from upper stack
1866 * for now we set to 0 */
1867 priv->rxon_timing.atim_window = 0;
1871 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
1872 result = do_div(tsf, interval_tm_unit);
1873 priv->rxon_timing.beacon_init_val =
1874 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
1877 ("beacon interval %d beacon timer %d beacon tim %d\n",
1878 le16_to_cpu(priv->rxon_timing.beacon_interval),
1879 le32_to_cpu(priv->rxon_timing.beacon_init_val),
1880 le16_to_cpu(priv->rxon_timing.atim_window));
1883 static int iwl3945_scan_initiate(struct iwl_priv *priv)
1885 if (!iwl_is_ready_rf(priv)) {
1886 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1890 if (test_bit(STATUS_SCANNING, &priv->status)) {
1891 IWL_DEBUG_SCAN("Scan already in progress.\n");
1895 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1896 IWL_DEBUG_SCAN("Scan request while abort pending. "
1901 IWL_DEBUG_INFO("Starting scan...\n");
1902 if (priv->cfg->sku & IWL_SKU_G)
1903 priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ);
1904 if (priv->cfg->sku & IWL_SKU_A)
1905 priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ);
1906 set_bit(STATUS_SCANNING, &priv->status);
1907 priv->scan_start = jiffies;
1908 priv->scan_pass_start = priv->scan_start;
1910 queue_work(priv->workqueue, &priv->request_scan);
1915 static int iwl3945_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
1917 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
1920 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
1922 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
1927 static void iwl3945_set_flags_for_phymode(struct iwl_priv *priv,
1928 enum ieee80211_band band)
1930 if (band == IEEE80211_BAND_5GHZ) {
1931 priv->staging39_rxon.flags &=
1932 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1933 | RXON_FLG_CCK_MSK);
1934 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1936 /* Copied from iwl3945_bg_post_associate() */
1937 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1938 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1940 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1942 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1943 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1945 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1946 priv->staging39_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1947 priv->staging39_rxon.flags &= ~RXON_FLG_CCK_MSK;
1952 * initialize rxon structure with default values from eeprom
1954 static void iwl3945_connection_init_rx_config(struct iwl_priv *priv,
1957 const struct iwl_channel_info *ch_info;
1959 memset(&priv->staging39_rxon, 0, sizeof(priv->staging39_rxon));
1962 case NL80211_IFTYPE_AP:
1963 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_AP;
1966 case NL80211_IFTYPE_STATION:
1967 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_ESS;
1968 priv->staging39_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1971 case NL80211_IFTYPE_ADHOC:
1972 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1973 priv->staging39_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1974 priv->staging39_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1975 RXON_FILTER_ACCEPT_GRP_MSK;
1978 case NL80211_IFTYPE_MONITOR:
1979 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
1980 priv->staging39_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
1981 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
1984 IWL_ERR(priv, "Unsupported interface type %d\n", mode);
1989 /* TODO: Figure out when short_preamble would be set and cache from
1991 if (!hw_to_local(priv->hw)->short_preamble)
1992 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1994 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1997 ch_info = iwl3945_get_channel_info(priv, priv->band,
1998 le16_to_cpu(priv->active39_rxon.channel));
2001 ch_info = &priv->channel_info[0];
2004 * in some case A channels are all non IBSS
2005 * in this case force B/G channel
2007 if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info)))
2008 ch_info = &priv->channel_info[0];
2010 priv->staging39_rxon.channel = cpu_to_le16(ch_info->channel);
2011 if (is_channel_a_band(ch_info))
2012 priv->band = IEEE80211_BAND_5GHZ;
2014 priv->band = IEEE80211_BAND_2GHZ;
2016 iwl3945_set_flags_for_phymode(priv, priv->band);
2018 priv->staging39_rxon.ofdm_basic_rates =
2019 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2020 priv->staging39_rxon.cck_basic_rates =
2021 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
2024 static int iwl3945_set_mode(struct iwl_priv *priv, int mode)
2026 if (mode == NL80211_IFTYPE_ADHOC) {
2027 const struct iwl_channel_info *ch_info;
2029 ch_info = iwl3945_get_channel_info(priv,
2031 le16_to_cpu(priv->staging39_rxon.channel));
2033 if (!ch_info || !is_channel_ibss(ch_info)) {
2034 IWL_ERR(priv, "channel %d not IBSS channel\n",
2035 le16_to_cpu(priv->staging39_rxon.channel));
2040 iwl3945_connection_init_rx_config(priv, mode);
2041 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2043 iwl3945_clear_stations_table(priv);
2045 /* don't commit rxon if rf-kill is on*/
2046 if (!iwl_is_ready_rf(priv))
2049 cancel_delayed_work(&priv->scan_check);
2050 if (iwl3945_scan_cancel_timeout(priv, 100)) {
2051 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
2052 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2056 iwl3945_commit_rxon(priv);
2061 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
2062 struct ieee80211_tx_info *info,
2063 struct iwl_cmd *cmd,
2064 struct sk_buff *skb_frag,
2067 struct iwl3945_hw_key *keyinfo =
2068 &priv->stations_39[info->control.hw_key->hw_key_idx].keyinfo;
2070 switch (keyinfo->alg) {
2072 cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
2073 memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
2074 IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
2079 cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
2082 memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
2085 memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
2090 cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP |
2091 (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
2093 if (keyinfo->keylen == 13)
2094 cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
2096 memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen);
2098 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2099 "with key %d\n", info->control.hw_key->hw_key_idx);
2103 IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
2109 * handle build REPLY_TX command notification.
2111 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
2112 struct iwl_cmd *cmd,
2113 struct ieee80211_tx_info *info,
2114 struct ieee80211_hdr *hdr,
2115 int is_unicast, u8 std_id)
2117 __le16 fc = hdr->frame_control;
2118 __le32 tx_flags = cmd->cmd.tx.tx_flags;
2119 u8 rc_flags = info->control.rates[0].flags;
2121 cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2122 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
2123 tx_flags |= TX_CMD_FLG_ACK_MSK;
2124 if (ieee80211_is_mgmt(fc))
2125 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2126 if (ieee80211_is_probe_resp(fc) &&
2127 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
2128 tx_flags |= TX_CMD_FLG_TSF_MSK;
2130 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
2131 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2134 cmd->cmd.tx.sta_id = std_id;
2135 if (ieee80211_has_morefrags(fc))
2136 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
2138 if (ieee80211_is_data_qos(fc)) {
2139 u8 *qc = ieee80211_get_qos_ctl(hdr);
2140 cmd->cmd.tx.tid_tspec = qc[0] & 0xf;
2141 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
2143 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
2146 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
2147 tx_flags |= TX_CMD_FLG_RTS_MSK;
2148 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
2149 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
2150 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
2151 tx_flags |= TX_CMD_FLG_CTS_MSK;
2154 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
2155 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
2157 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
2158 if (ieee80211_is_mgmt(fc)) {
2159 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
2160 cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
2162 cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
2164 cmd->cmd.tx.timeout.pm_frame_timeout = 0;
2165 #ifdef CONFIG_IWL3945_LEDS
2166 priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
2170 cmd->cmd.tx.driver_txop = 0;
2171 cmd->cmd.tx.tx_flags = tx_flags;
2172 cmd->cmd.tx.next_frame_len = 0;
2176 * iwl3945_get_sta_id - Find station's index within station table
2178 static int iwl3945_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
2181 u16 fc = le16_to_cpu(hdr->frame_control);
2183 /* If this frame is broadcast or management, use broadcast station id */
2184 if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
2185 is_multicast_ether_addr(hdr->addr1))
2186 return priv->hw_params.bcast_sta_id;
2188 switch (priv->iw_mode) {
2190 /* If we are a client station in a BSS network, use the special
2191 * AP station entry (that's the only station we communicate with) */
2192 case NL80211_IFTYPE_STATION:
2195 /* If we are an AP, then find the station, or use BCAST */
2196 case NL80211_IFTYPE_AP:
2197 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
2198 if (sta_id != IWL_INVALID_STATION)
2200 return priv->hw_params.bcast_sta_id;
2202 /* If this frame is going out to an IBSS network, find the station,
2203 * or create a new station table entry */
2204 case NL80211_IFTYPE_ADHOC: {
2205 /* Create new station table entry */
2206 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
2207 if (sta_id != IWL_INVALID_STATION)
2210 sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
2212 if (sta_id != IWL_INVALID_STATION)
2215 IWL_DEBUG_DROP("Station %pM not in station map. "
2216 "Defaulting to broadcast...\n",
2218 iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
2219 return priv->hw_params.bcast_sta_id;
2221 /* If we are in monitor mode, use BCAST. This is required for
2222 * packet injection. */
2223 case NL80211_IFTYPE_MONITOR:
2224 return priv->hw_params.bcast_sta_id;
2227 IWL_WARN(priv, "Unknown mode of operation: %d\n",
2229 return priv->hw_params.bcast_sta_id;
2234 * start REPLY_TX command process
2236 static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
2238 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
2239 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2240 struct iwl3945_tfd_frame *tfd;
2242 int txq_id = skb_get_queue_mapping(skb);
2243 struct iwl3945_tx_queue *txq = NULL;
2244 struct iwl_queue *q = NULL;
2245 dma_addr_t phys_addr;
2246 dma_addr_t txcmd_phys;
2247 struct iwl_cmd *out_cmd = NULL;
2248 u16 len, idx, len_org, hdr_len;
2255 u8 wait_write_ptr = 0;
2257 unsigned long flags;
2260 spin_lock_irqsave(&priv->lock, flags);
2261 if (iwl_is_rfkill(priv)) {
2262 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2266 if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
2267 IWL_ERR(priv, "ERROR: No TX rate available.\n");
2271 unicast = !is_multicast_ether_addr(hdr->addr1);
2274 fc = hdr->frame_control;
2276 #ifdef CONFIG_IWL3945_DEBUG
2277 if (ieee80211_is_auth(fc))
2278 IWL_DEBUG_TX("Sending AUTH frame\n");
2279 else if (ieee80211_is_assoc_req(fc))
2280 IWL_DEBUG_TX("Sending ASSOC frame\n");
2281 else if (ieee80211_is_reassoc_req(fc))
2282 IWL_DEBUG_TX("Sending REASSOC frame\n");
2285 /* drop all data frame if we are not associated */
2286 if (ieee80211_is_data(fc) &&
2287 (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */
2288 (!iwl3945_is_associated(priv) ||
2289 ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
2290 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2294 spin_unlock_irqrestore(&priv->lock, flags);
2296 hdr_len = ieee80211_hdrlen(fc);
2298 /* Find (or create) index into station table for destination station */
2299 sta_id = iwl3945_get_sta_id(priv, hdr);
2300 if (sta_id == IWL_INVALID_STATION) {
2301 IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
2306 IWL_DEBUG_RATE("station Id %d\n", sta_id);
2308 if (ieee80211_is_data_qos(fc)) {
2309 qc = ieee80211_get_qos_ctl(hdr);
2310 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
2311 seq_number = priv->stations_39[sta_id].tid[tid].seq_number &
2313 hdr->seq_ctrl = cpu_to_le16(seq_number) |
2315 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
2319 /* Descriptor for chosen Tx queue */
2320 txq = &priv->txq39[txq_id];
2323 spin_lock_irqsave(&priv->lock, flags);
2325 /* Set up first empty TFD within this queue's circular TFD buffer */
2326 tfd = &txq->bd[q->write_ptr];
2327 memset(tfd, 0, sizeof(*tfd));
2328 control_flags = (u32 *) tfd;
2329 idx = get_cmd_index(q, q->write_ptr, 0);
2331 /* Set up driver data for this TFD */
2332 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info));
2333 txq->txb[q->write_ptr].skb[0] = skb;
2335 /* Init first empty entry in queue's array of Tx/cmd buffers */
2336 out_cmd = &txq->cmd[idx];
2337 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
2338 memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
2341 * Set up the Tx-command (not MAC!) header.
2342 * Store the chosen Tx queue and TFD index within the sequence field;
2343 * after Tx, uCode's Tx response will return this value so driver can
2344 * locate the frame within the tx queue and do post-tx processing.
2346 out_cmd->hdr.cmd = REPLY_TX;
2347 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
2348 INDEX_TO_SEQ(q->write_ptr)));
2350 /* Copy MAC header from skb into command buffer */
2351 memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
2354 * Use the first empty entry in this queue's command buffer array
2355 * to contain the Tx command and MAC header concatenated together
2356 * (payload data will be in another buffer).
2357 * Size of this varies, due to varying MAC header length.
2358 * If end is not dword aligned, we'll have 2 extra bytes at the end
2359 * of the MAC header (device reads on dword boundaries).
2360 * We'll tell device about this padding later.
2362 len = sizeof(struct iwl3945_tx_cmd) +
2363 sizeof(struct iwl_cmd_header) + hdr_len;
2366 len = (len + 3) & ~3;
2373 /* Physical address of this Tx command's header (not MAC header!),
2374 * within command buffer array. */
2375 txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx +
2376 offsetof(struct iwl_cmd, hdr);
2378 /* Add buffer containing Tx command and MAC(!) header to TFD's
2380 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
2382 if (info->control.hw_key)
2383 iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0);
2385 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2386 * if any (802.11 null frames have no payload). */
2387 len = skb->len - hdr_len;
2389 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
2390 len, PCI_DMA_TODEVICE);
2391 iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
2395 /* If there is no payload, then we use only one Tx buffer */
2396 *control_flags = TFD_CTL_COUNT_SET(1);
2398 /* Else use 2 buffers.
2399 * Tell 3945 about any padding after MAC header */
2400 *control_flags = TFD_CTL_COUNT_SET(2) |
2401 TFD_CTL_PAD_SET(U32_PAD(len));
2403 /* Total # bytes to be transmitted */
2404 len = (u16)skb->len;
2405 out_cmd->cmd.tx.len = cpu_to_le16(len);
2407 /* TODO need this for burst mode later on */
2408 iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, unicast, sta_id);
2410 /* set is_hcca to 0; it probably will never be implemented */
2411 iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
2413 out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
2414 out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
2416 if (!ieee80211_has_morefrags(hdr->frame_control)) {
2417 txq->need_update = 1;
2419 priv->stations_39[sta_id].tid[tid].seq_number = seq_number;
2422 txq->need_update = 0;
2425 iwl_print_hex_dump(priv, IWL_DL_TX, out_cmd->cmd.payload,
2426 sizeof(out_cmd->cmd.tx));
2428 iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
2429 ieee80211_hdrlen(fc));
2431 /* Tell device the write index *just past* this latest filled TFD */
2432 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
2433 rc = iwl3945_tx_queue_update_write_ptr(priv, txq);
2434 spin_unlock_irqrestore(&priv->lock, flags);
2439 if ((iwl_queue_space(q) < q->high_mark)
2440 && priv->mac80211_registered) {
2441 if (wait_write_ptr) {
2442 spin_lock_irqsave(&priv->lock, flags);
2443 txq->need_update = 1;
2444 iwl3945_tx_queue_update_write_ptr(priv, txq);
2445 spin_unlock_irqrestore(&priv->lock, flags);
2448 ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
2454 spin_unlock_irqrestore(&priv->lock, flags);
2459 static void iwl3945_set_rate(struct iwl_priv *priv)
2461 const struct ieee80211_supported_band *sband = NULL;
2462 struct ieee80211_rate *rate;
2465 sband = iwl3945_get_band(priv, priv->band);
2467 IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
2471 priv->active_rate = 0;
2472 priv->active_rate_basic = 0;
2474 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2475 sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5");
2477 for (i = 0; i < sband->n_bitrates; i++) {
2478 rate = &sband->bitrates[i];
2479 if ((rate->hw_value < IWL_RATE_COUNT) &&
2480 !(rate->flags & IEEE80211_CHAN_DISABLED)) {
2481 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2482 rate->hw_value, iwl3945_rates[rate->hw_value].plcp);
2483 priv->active_rate |= (1 << rate->hw_value);
2487 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2488 priv->active_rate, priv->active_rate_basic);
2491 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2492 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2495 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
2496 priv->staging39_rxon.cck_basic_rates =
2497 ((priv->active_rate_basic &
2498 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
2500 priv->staging39_rxon.cck_basic_rates =
2501 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
2503 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
2504 priv->staging39_rxon.ofdm_basic_rates =
2505 ((priv->active_rate_basic &
2506 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
2507 IWL_FIRST_OFDM_RATE) & 0xFF;
2509 priv->staging39_rxon.ofdm_basic_rates =
2510 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2513 static void iwl3945_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
2515 unsigned long flags;
2517 if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
2520 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2521 disable_radio ? "OFF" : "ON");
2523 if (disable_radio) {
2524 iwl3945_scan_cancel(priv);
2525 /* FIXME: This is a workaround for AP */
2526 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2527 spin_lock_irqsave(&priv->lock, flags);
2528 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2529 CSR_UCODE_SW_BIT_RFKILL);
2530 spin_unlock_irqrestore(&priv->lock, flags);
2531 iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
2532 set_bit(STATUS_RF_KILL_SW, &priv->status);
2537 spin_lock_irqsave(&priv->lock, flags);
2538 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2540 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2541 spin_unlock_irqrestore(&priv->lock, flags);
2546 spin_lock_irqsave(&priv->lock, flags);
2547 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2548 if (!iwl_grab_nic_access(priv))
2549 iwl_release_nic_access(priv);
2550 spin_unlock_irqrestore(&priv->lock, flags);
2552 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
2553 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2554 "disabled by HW switch\n");
2559 queue_work(priv->workqueue, &priv->restart);
2563 void iwl3945_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
2564 u32 decrypt_res, struct ieee80211_rx_status *stats)
2567 le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
2569 if (priv->active39_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
2572 if (!(fc & IEEE80211_FCTL_PROTECTED))
2575 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
2576 switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
2577 case RX_RES_STATUS_SEC_TYPE_TKIP:
2578 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2579 RX_RES_STATUS_BAD_ICV_MIC)
2580 stats->flag |= RX_FLAG_MMIC_ERROR;
2581 case RX_RES_STATUS_SEC_TYPE_WEP:
2582 case RX_RES_STATUS_SEC_TYPE_CCMP:
2583 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2584 RX_RES_STATUS_DECRYPT_OK) {
2585 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2586 stats->flag |= RX_FLAG_DECRYPTED;
2595 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2597 #include "iwl-spectrum.h"
2599 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2600 #define BEACON_TIME_MASK_HIGH 0xFF000000
2601 #define TIME_UNIT 1024
2604 * extended beacon time format
2605 * time in usec will be changed into a 32-bit value in 8:24 format
2606 * the high 1 byte is the beacon counts
2607 * the lower 3 bytes is the time in usec within one beacon interval
2610 static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
2614 u32 interval = beacon_interval * 1024;
2616 if (!interval || !usec)
2619 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
2620 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
2622 return (quot << 24) + rem;
2625 /* base is usually what we get from ucode with each received frame,
2626 * the same as HW timer counter counting down
2629 static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
2631 u32 base_low = base & BEACON_TIME_MASK_LOW;
2632 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
2633 u32 interval = beacon_interval * TIME_UNIT;
2634 u32 res = (base & BEACON_TIME_MASK_HIGH) +
2635 (addon & BEACON_TIME_MASK_HIGH);
2637 if (base_low > addon_low)
2638 res += base_low - addon_low;
2639 else if (base_low < addon_low) {
2640 res += interval + base_low - addon_low;
2645 return cpu_to_le32(res);
2648 static int iwl3945_get_measurement(struct iwl_priv *priv,
2649 struct ieee80211_measurement_params *params,
2652 struct iwl_spectrum_cmd spectrum;
2653 struct iwl_rx_packet *res;
2654 struct iwl_host_cmd cmd = {
2655 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
2656 .data = (void *)&spectrum,
2657 .meta.flags = CMD_WANT_SKB,
2659 u32 add_time = le64_to_cpu(params->start_time);
2661 int spectrum_resp_status;
2662 int duration = le16_to_cpu(params->duration);
2664 if (iwl3945_is_associated(priv))
2666 iwl3945_usecs_to_beacons(
2667 le64_to_cpu(params->start_time) - priv->last_tsf,
2668 le16_to_cpu(priv->rxon_timing.beacon_interval));
2670 memset(&spectrum, 0, sizeof(spectrum));
2672 spectrum.channel_count = cpu_to_le16(1);
2674 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
2675 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
2676 cmd.len = sizeof(spectrum);
2677 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
2679 if (iwl3945_is_associated(priv))
2680 spectrum.start_time =
2681 iwl3945_add_beacon_time(priv->last_beacon_time,
2683 le16_to_cpu(priv->rxon_timing.beacon_interval));
2685 spectrum.start_time = 0;
2687 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
2688 spectrum.channels[0].channel = params->channel;
2689 spectrum.channels[0].type = type;
2690 if (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK)
2691 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
2692 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
2694 rc = iwl3945_send_cmd_sync(priv, &cmd);
2698 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
2699 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
2700 IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
2704 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
2705 switch (spectrum_resp_status) {
2706 case 0: /* Command will be handled */
2707 if (res->u.spectrum.id != 0xff) {
2708 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2709 res->u.spectrum.id);
2710 priv->measurement_status &= ~MEASUREMENT_READY;
2712 priv->measurement_status |= MEASUREMENT_ACTIVE;
2716 case 1: /* Command will not be handled */
2721 dev_kfree_skb_any(cmd.meta.u.skb);
2727 static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
2728 struct iwl_rx_mem_buffer *rxb)
2730 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2731 struct iwl_alive_resp *palive;
2732 struct delayed_work *pwork;
2734 palive = &pkt->u.alive_frame;
2736 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2738 palive->is_valid, palive->ver_type,
2739 palive->ver_subtype);
2741 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
2742 IWL_DEBUG_INFO("Initialization Alive received.\n");
2743 memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
2744 sizeof(struct iwl_alive_resp));
2745 pwork = &priv->init_alive_start;
2747 IWL_DEBUG_INFO("Runtime Alive received.\n");
2748 memcpy(&priv->card_alive, &pkt->u.alive_frame,
2749 sizeof(struct iwl_alive_resp));
2750 pwork = &priv->alive_start;
2751 iwl3945_disable_events(priv);
2754 /* We delay the ALIVE response by 5ms to
2755 * give the HW RF Kill time to activate... */
2756 if (palive->is_valid == UCODE_VALID_OK)
2757 queue_delayed_work(priv->workqueue, pwork,
2758 msecs_to_jiffies(5));
2760 IWL_WARN(priv, "uCode did not respond OK.\n");
2763 static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
2764 struct iwl_rx_mem_buffer *rxb)
2766 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2768 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
2772 static void iwl3945_rx_reply_error(struct iwl_priv *priv,
2773 struct iwl_rx_mem_buffer *rxb)
2775 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2777 IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
2778 "seq 0x%04X ser 0x%08X\n",
2779 le32_to_cpu(pkt->u.err_resp.error_type),
2780 get_cmd_string(pkt->u.err_resp.cmd_id),
2781 pkt->u.err_resp.cmd_id,
2782 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2783 le32_to_cpu(pkt->u.err_resp.error_info));
2786 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2788 static void iwl3945_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
2790 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2791 struct iwl3945_rxon_cmd *rxon = (void *)&priv->active39_rxon;
2792 struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
2793 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2794 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
2795 rxon->channel = csa->channel;
2796 priv->staging39_rxon.channel = csa->channel;
2799 static void iwl3945_rx_spectrum_measure_notif(struct iwl_priv *priv,
2800 struct iwl_rx_mem_buffer *rxb)
2802 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2803 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2804 struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
2806 if (!report->state) {
2807 IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
2808 "Spectrum Measure Notification: Start\n");
2812 memcpy(&priv->measure_report, report, sizeof(*report));
2813 priv->measurement_status |= MEASUREMENT_READY;
2817 static void iwl3945_rx_pm_sleep_notif(struct iwl_priv *priv,
2818 struct iwl_rx_mem_buffer *rxb)
2820 #ifdef CONFIG_IWL3945_DEBUG
2821 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2822 struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
2823 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2824 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2828 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
2829 struct iwl_rx_mem_buffer *rxb)
2831 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2832 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2833 "notification for %s:\n",
2834 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
2835 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw,
2836 le32_to_cpu(pkt->len));
2839 static void iwl3945_bg_beacon_update(struct work_struct *work)
2841 struct iwl_priv *priv =
2842 container_of(work, struct iwl_priv, beacon_update);
2843 struct sk_buff *beacon;
2845 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2846 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
2849 IWL_ERR(priv, "update beacon failed\n");
2853 mutex_lock(&priv->mutex);
2854 /* new beacon skb is allocated every time; dispose previous.*/
2855 if (priv->ibss_beacon)
2856 dev_kfree_skb(priv->ibss_beacon);
2858 priv->ibss_beacon = beacon;
2859 mutex_unlock(&priv->mutex);
2861 iwl3945_send_beacon_cmd(priv);
2864 static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
2865 struct iwl_rx_mem_buffer *rxb)
2867 #ifdef CONFIG_IWL3945_DEBUG
2868 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2869 struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
2870 u8 rate = beacon->beacon_notify_hdr.rate;
2872 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2873 "tsf %d %d rate %d\n",
2874 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
2875 beacon->beacon_notify_hdr.failure_frame,
2876 le32_to_cpu(beacon->ibss_mgr_status),
2877 le32_to_cpu(beacon->high_tsf),
2878 le32_to_cpu(beacon->low_tsf), rate);
2881 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
2882 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
2883 queue_work(priv->workqueue, &priv->beacon_update);
2886 /* Service response to REPLY_SCAN_CMD (0x80) */
2887 static void iwl3945_rx_reply_scan(struct iwl_priv *priv,
2888 struct iwl_rx_mem_buffer *rxb)
2890 #ifdef CONFIG_IWL3945_DEBUG
2891 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2892 struct iwl_scanreq_notification *notif =
2893 (struct iwl_scanreq_notification *)pkt->u.raw;
2895 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
2899 /* Service SCAN_START_NOTIFICATION (0x82) */
2900 static void iwl3945_rx_scan_start_notif(struct iwl_priv *priv,
2901 struct iwl_rx_mem_buffer *rxb)
2903 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2904 struct iwl_scanstart_notification *notif =
2905 (struct iwl_scanstart_notification *)pkt->u.raw;
2906 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
2907 IWL_DEBUG_SCAN("Scan start: "
2909 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2911 notif->band ? "bg" : "a",
2913 notif->tsf_low, notif->status, notif->beacon_timer);
2916 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2917 static void iwl3945_rx_scan_results_notif(struct iwl_priv *priv,
2918 struct iwl_rx_mem_buffer *rxb)
2920 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2921 struct iwl_scanresults_notification *notif =
2922 (struct iwl_scanresults_notification *)pkt->u.raw;
2924 IWL_DEBUG_SCAN("Scan ch.res: "
2926 "(TSF: 0x%08X:%08X) - %d "
2927 "elapsed=%lu usec (%dms since last)\n",
2929 notif->band ? "bg" : "a",
2930 le32_to_cpu(notif->tsf_high),
2931 le32_to_cpu(notif->tsf_low),
2932 le32_to_cpu(notif->statistics[0]),
2933 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
2934 jiffies_to_msecs(elapsed_jiffies
2935 (priv->last_scan_jiffies, jiffies)));
2937 priv->last_scan_jiffies = jiffies;
2938 priv->next_scan_jiffies = 0;
2941 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2942 static void iwl3945_rx_scan_complete_notif(struct iwl_priv *priv,
2943 struct iwl_rx_mem_buffer *rxb)
2945 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2946 struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
2948 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2949 scan_notif->scanned_channels,
2950 scan_notif->tsf_low,
2951 scan_notif->tsf_high, scan_notif->status);
2953 /* The HW is no longer scanning */
2954 clear_bit(STATUS_SCAN_HW, &priv->status);
2956 /* The scan completion notification came in, so kill that timer... */
2957 cancel_delayed_work(&priv->scan_check);
2959 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2960 (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ?
2962 jiffies_to_msecs(elapsed_jiffies
2963 (priv->scan_pass_start, jiffies)));
2965 /* Remove this scanned band from the list of pending
2966 * bands to scan, band G precedes A in order of scanning
2967 * as seen in iwl3945_bg_request_scan */
2968 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ))
2969 priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ);
2970 else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ))
2971 priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ);
2973 /* If a request to abort was given, or the scan did not succeed
2974 * then we reset the scan state machine and terminate,
2975 * re-queuing another scan if one has been requested */
2976 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2977 IWL_DEBUG_INFO("Aborted scan completed.\n");
2978 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
2980 /* If there are more bands on this scan pass reschedule */
2981 if (priv->scan_bands > 0)
2985 priv->last_scan_jiffies = jiffies;
2986 priv->next_scan_jiffies = 0;
2987 IWL_DEBUG_INFO("Setting scan to off\n");
2989 clear_bit(STATUS_SCANNING, &priv->status);
2991 IWL_DEBUG_INFO("Scan took %dms\n",
2992 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
2994 queue_work(priv->workqueue, &priv->scan_completed);
2999 priv->scan_pass_start = jiffies;
3000 queue_work(priv->workqueue, &priv->request_scan);
3003 /* Handle notification from uCode that card's power state is changing
3004 * due to software, hardware, or critical temperature RFKILL */
3005 static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
3006 struct iwl_rx_mem_buffer *rxb)
3008 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
3009 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
3010 unsigned long status = priv->status;
3012 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3013 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
3014 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
3016 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
3017 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
3019 if (flags & HW_CARD_DISABLED)
3020 set_bit(STATUS_RF_KILL_HW, &priv->status);
3022 clear_bit(STATUS_RF_KILL_HW, &priv->status);
3025 if (flags & SW_CARD_DISABLED)
3026 set_bit(STATUS_RF_KILL_SW, &priv->status);
3028 clear_bit(STATUS_RF_KILL_SW, &priv->status);
3030 iwl3945_scan_cancel(priv);
3032 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
3033 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
3034 (test_bit(STATUS_RF_KILL_SW, &status) !=
3035 test_bit(STATUS_RF_KILL_SW, &priv->status)))
3036 queue_work(priv->workqueue, &priv->rf_kill);
3038 wake_up_interruptible(&priv->wait_command_queue);
3042 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3044 * Setup the RX handlers for each of the reply types sent from the uCode
3047 * This function chains into the hardware specific files for them to setup
3048 * any hardware specific handlers as well.
3050 static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
3052 priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
3053 priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
3054 priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error;
3055 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa;
3056 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
3057 iwl3945_rx_spectrum_measure_notif;
3058 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif;
3059 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
3060 iwl3945_rx_pm_debug_statistics_notif;
3061 priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
3064 * The same handler is used for both the REPLY to a discrete
3065 * statistics request from the host as well as for the periodic
3066 * statistics notifications (after received beacons) from the uCode.
3068 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
3069 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
3071 priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan;
3072 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif;
3073 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
3074 iwl3945_rx_scan_results_notif;
3075 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
3076 iwl3945_rx_scan_complete_notif;
3077 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
3079 /* Set up hardware specific Rx handlers */
3080 iwl3945_hw_rx_handler_setup(priv);
3084 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3085 * When FW advances 'R' index, all entries between old and new 'R' index
3086 * need to be reclaimed.
3088 static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv,
3089 int txq_id, int index)
3091 struct iwl3945_tx_queue *txq = &priv->txq39[txq_id];
3092 struct iwl_queue *q = &txq->q;
3095 if ((index >= q->n_bd) || (iwl3945_x2_queue_used(q, index) == 0)) {
3096 IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
3097 "is out of range [0-%d] %d %d.\n", txq_id,
3098 index, q->n_bd, q->write_ptr, q->read_ptr);
3102 for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
3103 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
3105 IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", index,
3106 q->write_ptr, q->read_ptr);
3107 queue_work(priv->workqueue, &priv->restart);
3116 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3117 * @rxb: Rx buffer to reclaim
3119 * If an Rx buffer has an async callback associated with it the callback
3120 * will be executed. The attached skb (if present) will only be freed
3121 * if the callback returns 1
3123 static void iwl3945_tx_cmd_complete(struct iwl_priv *priv,
3124 struct iwl_rx_mem_buffer *rxb)
3126 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
3127 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
3128 int txq_id = SEQ_TO_QUEUE(sequence);
3129 int index = SEQ_TO_INDEX(sequence);
3130 int huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
3132 struct iwl_cmd *cmd;
3134 BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
3136 cmd_index = get_cmd_index(&priv->txq39[IWL_CMD_QUEUE_NUM].q, index, huge);
3137 cmd = &priv->txq39[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
3139 /* Input error checking is done when commands are added to queue. */
3140 if (cmd->meta.flags & CMD_WANT_SKB) {
3141 cmd->meta.source->u.skb = rxb->skb;
3143 } else if (cmd->meta.u.callback &&
3144 !cmd->meta.u.callback(priv, cmd, rxb->skb))
3147 iwl3945_cmd_queue_reclaim(priv, txq_id, index);
3149 if (!(cmd->meta.flags & CMD_ASYNC)) {
3150 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3151 wake_up_interruptible(&priv->wait_command_queue);
3155 /************************** RX-FUNCTIONS ****************************/
3157 * Rx theory of operation
3159 * The host allocates 32 DMA target addresses and passes the host address
3160 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3164 * The host/firmware share two index registers for managing the Rx buffers.
3166 * The READ index maps to the first position that the firmware may be writing
3167 * to -- the driver can read up to (but not including) this position and get
3169 * The READ index is managed by the firmware once the card is enabled.
3171 * The WRITE index maps to the last position the driver has read from -- the
3172 * position preceding WRITE is the last slot the firmware can place a packet.
3174 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3177 * During initialization, the host sets up the READ queue position to the first
3178 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3180 * When the firmware places a packet in a buffer, it will advance the READ index
3181 * and fire the RX interrupt. The driver can then query the READ index and
3182 * process as many packets as possible, moving the WRITE index forward as it
3183 * resets the Rx queue buffers with new memory.
3185 * The management in the driver is as follows:
3186 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3187 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3188 * to replenish the iwl->rxq->rx_free.
3189 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3190 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3191 * 'processed' and 'read' driver indexes as well)
3192 * + A received packet is processed and handed to the kernel network stack,
3193 * detached from the iwl->rxq. The driver 'processed' index is updated.
3194 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3195 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3196 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3197 * were enough free buffers and RX_STALLED is set it is cleared.
3202 * iwl3945_rx_queue_alloc() Allocates rx_free
3203 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3204 * iwl3945_rx_queue_restock
3205 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3206 * queue, updates firmware pointers, and updates
3207 * the WRITE index. If insufficient rx_free buffers
3208 * are available, schedules iwl3945_rx_replenish
3210 * -- enable interrupts --
3211 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
3212 * READ INDEX, detaching the SKB from the pool.
3213 * Moves the packet buffer from queue to rx_used.
3214 * Calls iwl3945_rx_queue_restock to refill any empty
3221 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3223 static int iwl3945_rx_queue_space(const struct iwl_rx_queue *q)
3225 int s = q->read - q->write;
3228 /* keep some buffer to not confuse full and empty queue */
3236 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3238 int iwl3945_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q)
3242 unsigned long flags;
3244 spin_lock_irqsave(&q->lock, flags);
3246 if (q->need_update == 0)
3249 /* If power-saving is in use, make sure device is awake */
3250 if (test_bit(STATUS_POWER_PMI, &priv->status)) {
3251 reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
3253 if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
3254 iwl_set_bit(priv, CSR_GP_CNTRL,
3255 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
3259 rc = iwl_grab_nic_access(priv);
3263 /* Device expects a multiple of 8 */
3264 iwl_write_direct32(priv, FH39_RSCSR_CHNL0_WPTR,
3266 iwl_release_nic_access(priv);
3268 /* Else device is assumed to be awake */
3270 /* Device expects a multiple of 8 */
3271 iwl_write32(priv, FH39_RSCSR_CHNL0_WPTR, q->write & ~0x7);
3277 spin_unlock_irqrestore(&q->lock, flags);
3282 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3284 static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
3285 dma_addr_t dma_addr)
3287 return cpu_to_le32((u32)dma_addr);
3291 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3293 * If there are slots in the RX queue that need to be restocked,
3294 * and we have free pre-allocated buffers, fill the ranks as much
3295 * as we can, pulling from rx_free.
3297 * This moves the 'write' index forward to catch up with 'processed', and
3298 * also updates the memory address in the firmware to reference the new
3301 static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
3303 struct iwl_rx_queue *rxq = &priv->rxq;
3304 struct list_head *element;
3305 struct iwl_rx_mem_buffer *rxb;
3306 unsigned long flags;
3309 spin_lock_irqsave(&rxq->lock, flags);
3310 write = rxq->write & ~0x7;
3311 while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
3312 /* Get next free Rx buffer, remove from free list */
3313 element = rxq->rx_free.next;
3314 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
3317 /* Point to Rx buffer via next RBD in circular buffer */
3318 rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
3319 rxq->queue[rxq->write] = rxb;
3320 rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
3323 spin_unlock_irqrestore(&rxq->lock, flags);
3324 /* If the pre-allocated buffer pool is dropping low, schedule to
3326 if (rxq->free_count <= RX_LOW_WATERMARK)
3327 queue_work(priv->workqueue, &priv->rx_replenish);
3330 /* If we've added more space for the firmware to place data, tell it.
3331 * Increment device's write pointer in multiples of 8. */
3332 if ((write != (rxq->write & ~0x7))
3333 || (abs(rxq->write - rxq->read) > 7)) {
3334 spin_lock_irqsave(&rxq->lock, flags);
3335 rxq->need_update = 1;
3336 spin_unlock_irqrestore(&rxq->lock, flags);
3337 rc = iwl3945_rx_queue_update_write_ptr(priv, rxq);
3346 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3348 * When moving to rx_free an SKB is allocated for the slot.
3350 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3351 * This is called as a scheduled work item (except for during initialization)
3353 static void iwl3945_rx_allocate(struct iwl_priv *priv)
3355 struct iwl_rx_queue *rxq = &priv->rxq;
3356 struct list_head *element;
3357 struct iwl_rx_mem_buffer *rxb;
3358 unsigned long flags;
3359 spin_lock_irqsave(&rxq->lock, flags);
3360 while (!list_empty(&rxq->rx_used)) {
3361 element = rxq->rx_used.next;
3362 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
3364 /* Alloc a new receive buffer */
3366 alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC);
3368 if (net_ratelimit())
3369 IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
3370 /* We don't reschedule replenish work here -- we will
3371 * call the restock method and if it still needs
3372 * more buffers it will schedule replenish */
3376 /* If radiotap head is required, reserve some headroom here.
3377 * The physical head count is a variable rx_stats->phy_count.
3378 * We reserve 4 bytes here. Plus these extra bytes, the
3379 * headroom of the physical head should be enough for the
3380 * radiotap head that iwl3945 supported. See iwl3945_rt.
3382 skb_reserve(rxb->skb, 4);
3384 priv->alloc_rxb_skb++;
3387 /* Get physical address of RB/SKB */
3388 rxb->real_dma_addr =
3389 pci_map_single(priv->pci_dev, rxb->skb->data,
3390 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3391 list_add_tail(&rxb->list, &rxq->rx_free);
3394 spin_unlock_irqrestore(&rxq->lock, flags);
3398 * this should be called while priv->lock is locked
3400 static void __iwl3945_rx_replenish(void *data)
3402 struct iwl_priv *priv = data;
3404 iwl3945_rx_allocate(priv);
3405 iwl3945_rx_queue_restock(priv);
3409 void iwl3945_rx_replenish(void *data)
3411 struct iwl_priv *priv = data;
3412 unsigned long flags;
3414 iwl3945_rx_allocate(priv);
3416 spin_lock_irqsave(&priv->lock, flags);
3417 iwl3945_rx_queue_restock(priv);
3418 spin_unlock_irqrestore(&priv->lock, flags);
3421 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3422 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3423 * This free routine walks the list of POOL entries and if SKB is set to
3424 * non NULL it is unmapped and freed
3426 static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
3429 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
3430 if (rxq->pool[i].skb != NULL) {
3431 pci_unmap_single(priv->pci_dev,
3432 rxq->pool[i].real_dma_addr,
3433 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3434 dev_kfree_skb(rxq->pool[i].skb);
3438 pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
3443 int iwl3945_rx_queue_alloc(struct iwl_priv *priv)
3445 struct iwl_rx_queue *rxq = &priv->rxq;
3446 struct pci_dev *dev = priv->pci_dev;
3449 spin_lock_init(&rxq->lock);
3450 INIT_LIST_HEAD(&rxq->rx_free);
3451 INIT_LIST_HEAD(&rxq->rx_used);
3453 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3454 rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
3458 /* Fill the rx_used queue with _all_ of the Rx buffers */
3459 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
3460 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3462 /* Set us so that we have processed and used all buffers, but have
3463 * not restocked the Rx queue with fresh buffers */
3464 rxq->read = rxq->write = 0;
3465 rxq->free_count = 0;
3466 rxq->need_update = 0;
3470 void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
3472 unsigned long flags;
3474 spin_lock_irqsave(&rxq->lock, flags);
3475 INIT_LIST_HEAD(&rxq->rx_free);
3476 INIT_LIST_HEAD(&rxq->rx_used);
3477 /* Fill the rx_used queue with _all_ of the Rx buffers */
3478 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3479 /* In the reset function, these buffers may have been allocated
3480 * to an SKB, so we need to unmap and free potential storage */
3481 if (rxq->pool[i].skb != NULL) {
3482 pci_unmap_single(priv->pci_dev,
3483 rxq->pool[i].real_dma_addr,
3484 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3485 priv->alloc_rxb_skb--;
3486 dev_kfree_skb(rxq->pool[i].skb);
3487 rxq->pool[i].skb = NULL;
3489 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3492 /* Set us so that we have processed and used all buffers, but have
3493 * not restocked the Rx queue with fresh buffers */
3494 rxq->read = rxq->write = 0;
3495 rxq->free_count = 0;
3496 spin_unlock_irqrestore(&rxq->lock, flags);
3499 /* Convert linear signal-to-noise ratio into dB */
3500 static u8 ratio2dB[100] = {
3501 /* 0 1 2 3 4 5 6 7 8 9 */
3502 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3503 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3504 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3505 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3506 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3507 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3508 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3509 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3510 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3511 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3514 /* Calculates a relative dB value from a ratio of linear
3515 * (i.e. not dB) signal levels.
3516 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3517 int iwl3945_calc_db_from_ratio(int sig_ratio)
3519 /* 1000:1 or higher just report as 60 dB */
3520 if (sig_ratio >= 1000)
3523 /* 100:1 or higher, divide by 10 and use table,
3524 * add 20 dB to make up for divide by 10 */
3525 if (sig_ratio >= 100)
3526 return 20 + (int)ratio2dB[sig_ratio/10];
3528 /* We shouldn't see this */
3532 /* Use table for ratios 1:1 - 99:1 */
3533 return (int)ratio2dB[sig_ratio];
3536 #define PERFECT_RSSI (-20) /* dBm */
3537 #define WORST_RSSI (-95) /* dBm */
3538 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3540 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3541 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3542 * about formulas used below. */
3543 int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
3546 int degradation = PERFECT_RSSI - rssi_dbm;
3548 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3549 * as indicator; formula is (signal dbm - noise dbm).
3550 * SNR at or above 40 is a great signal (100%).
3551 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3552 * Weakest usable signal is usually 10 - 15 dB SNR. */
3554 if (rssi_dbm - noise_dbm >= 40)
3556 else if (rssi_dbm < noise_dbm)
3558 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
3560 /* Else use just the signal level.
3561 * This formula is a least squares fit of data points collected and
3562 * compared with a reference system that had a percentage (%) display
3563 * for signal quality. */
3565 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
3566 (15 * RSSI_RANGE + 62 * degradation)) /
3567 (RSSI_RANGE * RSSI_RANGE);
3571 else if (sig_qual < 1)
3578 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3580 * Uses the priv->rx_handlers callback function array to invoke
3581 * the appropriate handlers, including command responses,
3582 * frame-received notifications, and other notifications.
3584 static void iwl3945_rx_handle(struct iwl_priv *priv)
3586 struct iwl_rx_mem_buffer *rxb;
3587 struct iwl_rx_packet *pkt;
3588 struct iwl_rx_queue *rxq = &priv->rxq;
3591 unsigned long flags;
3595 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3596 * buffer that the driver may process (last buffer filled by ucode). */
3597 r = iwl3945_hw_get_rx_read(priv);
3600 if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
3602 /* Rx interrupt, but nothing sent from uCode */
3604 IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
3607 rxb = rxq->queue[i];
3609 /* If an RXB doesn't have a Rx queue slot associated with it,
3610 * then a bug has been introduced in the queue refilling
3611 * routines -- catch it here */
3612 BUG_ON(rxb == NULL);
3614 rxq->queue[i] = NULL;
3616 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->real_dma_addr,
3618 PCI_DMA_FROMDEVICE);
3619 pkt = (struct iwl_rx_packet *)rxb->skb->data;
3621 /* Reclaim a command buffer only if this packet is a response
3622 * to a (driver-originated) command.
3623 * If the packet (e.g. Rx frame) originated from uCode,
3624 * there is no command buffer to reclaim.
3625 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3626 * but apparently a few don't get set; catch them here. */
3627 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
3628 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
3629 (pkt->hdr.cmd != REPLY_TX);
3631 /* Based on type of command response or notification,
3632 * handle those that need handling via function in
3633 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3634 if (priv->rx_handlers[pkt->hdr.cmd]) {
3635 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3636 "r = %d, i = %d, %s, 0x%02x\n", r, i,
3637 get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
3638 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
3640 /* No handling needed */
3641 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3642 "r %d i %d No handler needed for %s, 0x%02x\n",
3643 r, i, get_cmd_string(pkt->hdr.cmd),
3648 /* Invoke any callbacks, transfer the skb to caller, and
3649 * fire off the (possibly) blocking iwl3945_send_cmd()
3650 * as we reclaim the driver command queue */
3651 if (rxb && rxb->skb)
3652 iwl3945_tx_cmd_complete(priv, rxb);
3654 IWL_WARN(priv, "Claim null rxb?\n");
3657 /* For now we just don't re-use anything. We can tweak this
3658 * later to try and re-use notification packets and SKBs that
3659 * fail to Rx correctly */
3660 if (rxb->skb != NULL) {
3661 priv->alloc_rxb_skb--;
3662 dev_kfree_skb_any(rxb->skb);
3666 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
3667 IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3668 spin_lock_irqsave(&rxq->lock, flags);
3669 list_add_tail(&rxb->list, &priv->rxq.rx_used);
3670 spin_unlock_irqrestore(&rxq->lock, flags);
3671 i = (i + 1) & RX_QUEUE_MASK;
3672 /* If there are a lot of unused frames,
3673 * restock the Rx queue so ucode won't assert. */
3678 __iwl3945_rx_replenish(priv);
3684 /* Backtrack one entry */
3686 iwl3945_rx_queue_restock(priv);
3690 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
3692 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv *priv,
3693 struct iwl3945_tx_queue *txq)
3697 int txq_id = txq->q.id;
3699 if (txq->need_update == 0)
3702 /* if we're trying to save power */
3703 if (test_bit(STATUS_POWER_PMI, &priv->status)) {
3704 /* wake up nic if it's powered down ...
3705 * uCode will wake up, and interrupt us again, so next
3706 * time we'll skip this part. */
3707 reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
3709 if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
3710 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
3711 iwl_set_bit(priv, CSR_GP_CNTRL,
3712 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
3716 /* restore this queue's parameters in nic hardware. */
3717 rc = iwl_grab_nic_access(priv);
3720 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
3721 txq->q.write_ptr | (txq_id << 8));
3722 iwl_release_nic_access(priv);
3724 /* else not in power-save mode, uCode will never sleep when we're
3725 * trying to tx (during RFKILL, we're not trying to tx). */
3727 iwl_write32(priv, HBUS_TARG_WRPTR,
3728 txq->q.write_ptr | (txq_id << 8));
3730 txq->need_update = 0;
3735 #ifdef CONFIG_IWL3945_DEBUG
3736 static void iwl3945_print_rx_config_cmd(struct iwl_priv *priv,
3737 struct iwl3945_rxon_cmd *rxon)
3739 IWL_DEBUG_RADIO("RX CONFIG:\n");
3740 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
3741 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
3742 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
3743 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3744 le32_to_cpu(rxon->filter_flags));
3745 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
3746 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3747 rxon->ofdm_basic_rates);
3748 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
3749 IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr);
3750 IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
3751 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
3755 static void iwl3945_enable_interrupts(struct iwl_priv *priv)
3757 IWL_DEBUG_ISR("Enabling interrupts\n");
3758 set_bit(STATUS_INT_ENABLED, &priv->status);
3759 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
3763 /* call this function to flush any scheduled tasklet */
3764 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
3766 /* wait to make sure we flush pending tasklet*/
3767 synchronize_irq(priv->pci_dev->irq);
3768 tasklet_kill(&priv->irq_tasklet);
3772 static inline void iwl3945_disable_interrupts(struct iwl_priv *priv)
3774 clear_bit(STATUS_INT_ENABLED, &priv->status);
3776 /* disable interrupts from uCode/NIC to host */
3777 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
3779 /* acknowledge/clear/reset any interrupts still pending
3780 * from uCode or flow handler (Rx/Tx DMA) */
3781 iwl_write32(priv, CSR_INT, 0xffffffff);
3782 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
3783 IWL_DEBUG_ISR("Disabled interrupts\n");
3786 static const char *desc_lookup(int i)
3794 return "BAD_CHECKSUM";
3796 return "NMI_INTERRUPT";
3800 return "FATAL_ERROR";
3806 #define ERROR_START_OFFSET (1 * sizeof(u32))
3807 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3809 static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
3812 u32 desc, time, count, base, data1;
3813 u32 blink1, blink2, ilink1, ilink2;
3816 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
3818 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3819 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
3823 rc = iwl_grab_nic_access(priv);
3825 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3829 count = iwl_read_targ_mem(priv, base);
3831 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
3832 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
3833 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
3834 priv->status, count);
3837 IWL_ERR(priv, "Desc Time asrtPC blink2 "
3838 "ilink1 nmiPC Line\n");
3839 for (i = ERROR_START_OFFSET;
3840 i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
3841 i += ERROR_ELEM_SIZE) {
3842 desc = iwl_read_targ_mem(priv, base + i);
3844 iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
3846 iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
3848 iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
3850 iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
3852 iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
3854 iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
3857 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
3858 desc_lookup(desc), desc, time, blink1, blink2,
3859 ilink1, ilink2, data1);
3862 iwl_release_nic_access(priv);
3866 #define EVENT_START_OFFSET (6 * sizeof(u32))
3869 * iwl3945_print_event_log - Dump error event log to syslog
3871 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3873 static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
3874 u32 num_events, u32 mode)
3877 u32 base; /* SRAM byte address of event log header */
3878 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
3879 u32 ptr; /* SRAM byte address of log data */
3880 u32 ev, time, data; /* event log data */
3882 if (num_events == 0)
3885 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3888 event_size = 2 * sizeof(u32);
3890 event_size = 3 * sizeof(u32);
3892 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
3894 /* "time" is actually "data" for mode 0 (no timestamp).
3895 * place event id # at far right for easier visual parsing. */
3896 for (i = 0; i < num_events; i++) {
3897 ev = iwl_read_targ_mem(priv, ptr);
3899 time = iwl_read_targ_mem(priv, ptr);
3903 IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
3905 data = iwl_read_targ_mem(priv, ptr);
3907 IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
3912 static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
3915 u32 base; /* SRAM byte address of event log header */
3916 u32 capacity; /* event log capacity in # entries */
3917 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
3918 u32 num_wraps; /* # times uCode wrapped to top of log */
3919 u32 next_entry; /* index of next entry to be written by uCode */
3920 u32 size; /* # entries that we'll print */
3922 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3923 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3924 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
3928 rc = iwl_grab_nic_access(priv);
3930 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3934 /* event log header */
3935 capacity = iwl_read_targ_mem(priv, base);
3936 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
3937 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
3938 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
3940 size = num_wraps ? capacity : next_entry;
3942 /* bail out if nothing in log */
3944 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
3945 iwl_release_nic_access(priv);
3949 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
3952 /* if uCode has wrapped back to top of log, start at the oldest entry,
3953 * i.e the next one that uCode would fill. */
3955 iwl3945_print_event_log(priv, next_entry,
3956 capacity - next_entry, mode);
3958 /* (then/else) start at top of log */
3959 iwl3945_print_event_log(priv, 0, next_entry, mode);
3961 iwl_release_nic_access(priv);
3965 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
3967 static void iwl3945_irq_handle_error(struct iwl_priv *priv)
3969 /* Set the FW error flag -- cleared on iwl3945_down */
3970 set_bit(STATUS_FW_ERROR, &priv->status);
3972 /* Cancel currently queued command. */
3973 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3975 #ifdef CONFIG_IWL3945_DEBUG
3976 if (priv->debug_level & IWL_DL_FW_ERRORS) {
3977 iwl3945_dump_nic_error_log(priv);
3978 iwl3945_dump_nic_event_log(priv);
3979 iwl3945_print_rx_config_cmd(priv, &priv->staging39_rxon);
3983 wake_up_interruptible(&priv->wait_command_queue);
3985 /* Keep the restart process from trying to send host
3986 * commands by clearing the INIT status bit */
3987 clear_bit(STATUS_READY, &priv->status);
3989 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3990 IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
3991 "Restarting adapter due to uCode error.\n");
3993 if (iwl3945_is_associated(priv)) {
3994 memcpy(&priv->recovery39_rxon, &priv->active39_rxon,
3995 sizeof(priv->recovery39_rxon));
3996 priv->error_recovering = 1;
3998 queue_work(priv->workqueue, &priv->restart);
4002 static void iwl3945_error_recovery(struct iwl_priv *priv)
4004 unsigned long flags;
4006 memcpy(&priv->staging39_rxon, &priv->recovery39_rxon,
4007 sizeof(priv->staging39_rxon));
4008 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4009 iwl3945_commit_rxon(priv);
4011 iwl3945_add_station(priv, priv->bssid, 1, 0);
4013 spin_lock_irqsave(&priv->lock, flags);
4014 priv->assoc_id = le16_to_cpu(priv->staging39_rxon.assoc_id);
4015 priv->error_recovering = 0;
4016 spin_unlock_irqrestore(&priv->lock, flags);
4019 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
4021 u32 inta, handled = 0;
4023 unsigned long flags;
4024 #ifdef CONFIG_IWL3945_DEBUG
4028 spin_lock_irqsave(&priv->lock, flags);
4030 /* Ack/clear/reset pending uCode interrupts.
4031 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4032 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4033 inta = iwl_read32(priv, CSR_INT);
4034 iwl_write32(priv, CSR_INT, inta);
4036 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4037 * Any new interrupts that happen after this, either while we're
4038 * in this tasklet, or later, will show up in next ISR/tasklet. */
4039 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
4040 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
4042 #ifdef CONFIG_IWL3945_DEBUG
4043 if (priv->debug_level & IWL_DL_ISR) {
4044 /* just for debug */
4045 inta_mask = iwl_read32(priv, CSR_INT_MASK);
4046 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4047 inta, inta_mask, inta_fh);
4051 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4052 * atomic, make sure that inta covers all the interrupts that
4053 * we've discovered, even if FH interrupt came in just after
4054 * reading CSR_INT. */
4055 if (inta_fh & CSR39_FH_INT_RX_MASK)
4056 inta |= CSR_INT_BIT_FH_RX;
4057 if (inta_fh & CSR39_FH_INT_TX_MASK)
4058 inta |= CSR_INT_BIT_FH_TX;
4060 /* Now service all interrupt bits discovered above. */
4061 if (inta & CSR_INT_BIT_HW_ERR) {
4062 IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
4064 /* Tell the device to stop sending interrupts */
4065 iwl3945_disable_interrupts(priv);
4067 iwl3945_irq_handle_error(priv);
4069 handled |= CSR_INT_BIT_HW_ERR;
4071 spin_unlock_irqrestore(&priv->lock, flags);
4076 #ifdef CONFIG_IWL3945_DEBUG
4077 if (priv->debug_level & (IWL_DL_ISR)) {
4078 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4079 if (inta & CSR_INT_BIT_SCD)
4080 IWL_DEBUG_ISR("Scheduler finished to transmit "
4081 "the frame/frames.\n");
4083 /* Alive notification via Rx interrupt will do the real work */
4084 if (inta & CSR_INT_BIT_ALIVE)
4085 IWL_DEBUG_ISR("Alive interrupt\n");
4088 /* Safely ignore these bits for debug checks below */
4089 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
4091 /* Error detected by uCode */
4092 if (inta & CSR_INT_BIT_SW_ERR) {
4093 IWL_ERR(priv, "Microcode SW error detected. "
4094 "Restarting 0x%X.\n", inta);
4095 iwl3945_irq_handle_error(priv);
4096 handled |= CSR_INT_BIT_SW_ERR;
4099 /* uCode wakes up after power-down sleep */
4100 if (inta & CSR_INT_BIT_WAKEUP) {
4101 IWL_DEBUG_ISR("Wakeup interrupt\n");
4102 iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq);
4103 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[0]);
4104 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[1]);
4105 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[2]);
4106 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[3]);
4107 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[4]);
4108 iwl3945_tx_queue_update_write_ptr(priv, &priv->txq39[5]);
4110 handled |= CSR_INT_BIT_WAKEUP;
4113 /* All uCode command responses, including Tx command responses,
4114 * Rx "responses" (frame-received notification), and other
4115 * notifications from uCode come through here*/
4116 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
4117 iwl3945_rx_handle(priv);
4118 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
4121 if (inta & CSR_INT_BIT_FH_TX) {
4122 IWL_DEBUG_ISR("Tx interrupt\n");
4124 iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
4125 if (!iwl_grab_nic_access(priv)) {
4126 iwl_write_direct32(priv, FH39_TCSR_CREDIT
4127 (FH39_SRVC_CHNL), 0x0);
4128 iwl_release_nic_access(priv);
4130 handled |= CSR_INT_BIT_FH_TX;
4133 if (inta & ~handled)
4134 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
4136 if (inta & ~CSR_INI_SET_MASK) {
4137 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
4138 inta & ~CSR_INI_SET_MASK);
4139 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
4142 /* Re-enable all interrupts */
4143 /* only Re-enable if disabled by irq */
4144 if (test_bit(STATUS_INT_ENABLED, &priv->status))
4145 iwl3945_enable_interrupts(priv);
4147 #ifdef CONFIG_IWL3945_DEBUG
4148 if (priv->debug_level & (IWL_DL_ISR)) {
4149 inta = iwl_read32(priv, CSR_INT);
4150 inta_mask = iwl_read32(priv, CSR_INT_MASK);
4151 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
4152 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4153 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
4156 spin_unlock_irqrestore(&priv->lock, flags);
4159 static irqreturn_t iwl3945_isr(int irq, void *data)
4161 struct iwl_priv *priv = data;
4162 u32 inta, inta_mask;
4167 spin_lock(&priv->lock);
4169 /* Disable (but don't clear!) interrupts here to avoid
4170 * back-to-back ISRs and sporadic interrupts from our NIC.
4171 * If we have something to service, the tasklet will re-enable ints.
4172 * If we *don't* have something, we'll re-enable before leaving here. */
4173 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
4174 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
4176 /* Discover which interrupts are active/pending */
4177 inta = iwl_read32(priv, CSR_INT);
4178 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
4180 /* Ignore interrupt if there's nothing in NIC to service.
4181 * This may be due to IRQ shared with another device,
4182 * or due to sporadic interrupts thrown from our NIC. */
4183 if (!inta && !inta_fh) {
4184 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4188 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
4189 /* Hardware disappeared */
4190 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
4194 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4195 inta, inta_mask, inta_fh);
4197 inta &= ~CSR_INT_BIT_SCD;
4199 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4200 if (likely(inta || inta_fh))
4201 tasklet_schedule(&priv->irq_tasklet);
4203 spin_unlock(&priv->lock);
4208 /* re-enable interrupts here since we don't have anything to service. */
4209 /* only Re-enable if disabled by irq */
4210 if (test_bit(STATUS_INT_ENABLED, &priv->status))
4211 iwl3945_enable_interrupts(priv);
4212 spin_unlock(&priv->lock);
4216 /************************** EEPROM BANDS ****************************
4218 * The iwl3945_eeprom_band definitions below provide the mapping from the
4219 * EEPROM contents to the specific channel number supported for each
4222 * For example, iwl3945_priv->eeprom39.band_3_channels[4] from the band_3
4223 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4224 * The specific geography and calibration information for that channel
4225 * is contained in the eeprom map itself.
4227 * During init, we copy the eeprom information and channel map
4228 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4230 * channel_map_24/52 provides the index in the channel_info array for a
4231 * given channel. We have to have two separate maps as there is channel
4232 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4235 * A value of 0xff stored in the channel_map indicates that the channel
4236 * is not supported by the hardware at all.
4238 * A value of 0xfe in the channel_map indicates that the channel is not
4239 * valid for Tx with the current hardware. This means that
4240 * while the system can tune and receive on a given channel, it may not
4241 * be able to associate or transmit any frames on that
4242 * channel. There is no corresponding channel information for that
4245 *********************************************************************/
4248 static const u8 iwl3945_eeprom_band_1[14] = {
4249 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4253 static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */
4254 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4257 static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */
4258 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4261 static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */
4262 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4265 static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */
4266 145, 149, 153, 157, 161, 165
4269 static void iwl3945_init_band_reference(const struct iwl_priv *priv, int band,
4270 int *eeprom_ch_count,
4271 const struct iwl_eeprom_channel
4273 const u8 **eeprom_ch_index)
4276 case 1: /* 2.4GHz band */
4277 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1);
4278 *eeprom_ch_info = priv->eeprom39.band_1_channels;
4279 *eeprom_ch_index = iwl3945_eeprom_band_1;
4281 case 2: /* 4.9GHz band */
4282 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2);
4283 *eeprom_ch_info = priv->eeprom39.band_2_channels;
4284 *eeprom_ch_index = iwl3945_eeprom_band_2;
4286 case 3: /* 5.2GHz band */
4287 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3);
4288 *eeprom_ch_info = priv->eeprom39.band_3_channels;
4289 *eeprom_ch_index = iwl3945_eeprom_band_3;
4291 case 4: /* 5.5GHz band */
4292 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4);
4293 *eeprom_ch_info = priv->eeprom39.band_4_channels;
4294 *eeprom_ch_index = iwl3945_eeprom_band_4;
4296 case 5: /* 5.7GHz band */
4297 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5);
4298 *eeprom_ch_info = priv->eeprom39.band_5_channels;
4299 *eeprom_ch_index = iwl3945_eeprom_band_5;
4308 * iwl3945_get_channel_info - Find driver's private channel info
4310 * Based on band and channel number.
4312 const struct iwl_channel_info *
4313 iwl3945_get_channel_info(const struct iwl_priv *priv,
4314 enum ieee80211_band band, u16 channel)
4319 case IEEE80211_BAND_5GHZ:
4320 for (i = 14; i < priv->channel_count; i++) {
4321 if (priv->channel_info[i].channel == channel)
4322 return &priv->channel_info[i];
4326 case IEEE80211_BAND_2GHZ:
4327 if (channel >= 1 && channel <= 14)
4328 return &priv->channel_info[channel - 1];
4330 case IEEE80211_NUM_BANDS:
4337 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4341 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4343 static int iwl3945_init_channel_map(struct iwl_priv *priv)
4345 int eeprom_ch_count = 0;
4346 const u8 *eeprom_ch_index = NULL;
4347 const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
4349 struct iwl_channel_info *ch_info;
4351 if (priv->channel_count) {
4352 IWL_DEBUG_INFO("Channel map already initialized.\n");
4356 if (priv->eeprom39.version < 0x2f) {
4357 IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
4358 priv->eeprom39.version);
4362 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4364 priv->channel_count =
4365 ARRAY_SIZE(iwl3945_eeprom_band_1) +
4366 ARRAY_SIZE(iwl3945_eeprom_band_2) +
4367 ARRAY_SIZE(iwl3945_eeprom_band_3) +
4368 ARRAY_SIZE(iwl3945_eeprom_band_4) +
4369 ARRAY_SIZE(iwl3945_eeprom_band_5);
4371 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
4373 priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
4374 priv->channel_count, GFP_KERNEL);
4375 if (!priv->channel_info) {
4376 IWL_ERR(priv, "Could not allocate channel_info\n");
4377 priv->channel_count = 0;
4381 ch_info = priv->channel_info;
4383 /* Loop through the 5 EEPROM bands adding them in order to the
4384 * channel map we maintain (that contains additional information than
4385 * what just in the EEPROM) */
4386 for (band = 1; band <= 5; band++) {
4388 iwl3945_init_band_reference(priv, band, &eeprom_ch_count,
4389 &eeprom_ch_info, &eeprom_ch_index);
4391 /* Loop through each band adding each of the channels */
4392 for (ch = 0; ch < eeprom_ch_count; ch++) {
4393 ch_info->channel = eeprom_ch_index[ch];
4394 ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
4395 IEEE80211_BAND_5GHZ;
4397 /* permanently store EEPROM's channel regulatory flags
4398 * and max power in channel info database. */
4399 ch_info->eeprom = eeprom_ch_info[ch];
4401 /* Copy the run-time flags so they are there even on
4402 * invalid channels */
4403 ch_info->flags = eeprom_ch_info[ch].flags;
4405 if (!(is_channel_valid(ch_info))) {
4406 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4410 is_channel_a_band(ch_info) ?
4416 /* Initialize regulatory-based run-time data */
4417 ch_info->max_power_avg = ch_info->curr_txpow =
4418 eeprom_ch_info[ch].max_power_avg;
4419 ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
4420 ch_info->min_power = 0;
4422 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4423 " %ddBm): Ad-Hoc %ssupported\n",
4425 is_channel_a_band(ch_info) ?
4427 CHECK_AND_PRINT(VALID),
4428 CHECK_AND_PRINT(IBSS),
4429 CHECK_AND_PRINT(ACTIVE),
4430 CHECK_AND_PRINT(RADAR),
4431 CHECK_AND_PRINT(WIDE),
4432 CHECK_AND_PRINT(DFS),
4433 eeprom_ch_info[ch].flags,
4434 eeprom_ch_info[ch].max_power_avg,
4435 ((eeprom_ch_info[ch].
4436 flags & EEPROM_CHANNEL_IBSS)
4437 && !(eeprom_ch_info[ch].
4438 flags & EEPROM_CHANNEL_RADAR))
4441 /* Set the user_txpower_limit to the highest power
4442 * supported by any channel */
4443 if (eeprom_ch_info[ch].max_power_avg >
4444 priv->user_txpower_limit)
4445 priv->user_txpower_limit =
4446 eeprom_ch_info[ch].max_power_avg;
4452 /* Set up txpower settings in driver for all channels */
4453 if (iwl3945_txpower_set_from_eeprom(priv))
4460 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4462 static void iwl3945_free_channel_map(struct iwl_priv *priv)
4464 kfree(priv->channel_info);
4465 priv->channel_count = 0;
4468 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4469 * sending probe req. This should be set long enough to hear probe responses
4470 * from more than one AP. */
4471 #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
4472 #define IWL_ACTIVE_DWELL_TIME_52 (20)
4474 #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
4475 #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
4477 /* For faster active scanning, scan will move to the next channel if fewer than
4478 * PLCP_QUIET_THRESH packets are heard on this channel within
4479 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4480 * time if it's a quiet channel (nothing responded to our probe, and there's
4481 * no other traffic).
4482 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4483 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4484 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
4486 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4487 * Must be set longer than active dwell time.
4488 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4489 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4490 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4491 #define IWL_PASSIVE_DWELL_BASE (100)
4492 #define IWL_CHANNEL_TUNE_TIME 5
4494 #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1)))
4496 static inline u16 iwl3945_get_active_dwell_time(struct iwl_priv *priv,
4497 enum ieee80211_band band,
4500 if (band == IEEE80211_BAND_5GHZ)
4501 return IWL_ACTIVE_DWELL_TIME_52 +
4502 IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
4504 return IWL_ACTIVE_DWELL_TIME_24 +
4505 IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
4508 static u16 iwl3945_get_passive_dwell_time(struct iwl_priv *priv,
4509 enum ieee80211_band band)
4511 u16 passive = (band == IEEE80211_BAND_2GHZ) ?
4512 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
4513 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
4515 if (iwl3945_is_associated(priv)) {
4516 /* If we're associated, we clamp the maximum passive
4517 * dwell time to be 98% of the beacon interval (minus
4518 * 2 * channel tune time) */
4519 passive = priv->beacon_int;
4520 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
4521 passive = IWL_PASSIVE_DWELL_BASE;
4522 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
4528 static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
4529 enum ieee80211_band band,
4530 u8 is_active, u8 n_probes,
4531 struct iwl3945_scan_channel *scan_ch)
4533 const struct ieee80211_channel *channels = NULL;
4534 const struct ieee80211_supported_band *sband;
4535 const struct iwl_channel_info *ch_info;
4536 u16 passive_dwell = 0;
4537 u16 active_dwell = 0;
4540 sband = iwl3945_get_band(priv, band);
4544 channels = sband->channels;
4546 active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes);
4547 passive_dwell = iwl3945_get_passive_dwell_time(priv, band);
4549 if (passive_dwell <= active_dwell)
4550 passive_dwell = active_dwell + 1;
4552 for (i = 0, added = 0; i < sband->n_channels; i++) {
4553 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
4556 scan_ch->channel = channels[i].hw_value;
4558 ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel);
4559 if (!is_channel_valid(ch_info)) {
4560 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4565 scan_ch->active_dwell = cpu_to_le16(active_dwell);
4566 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
4567 /* If passive , set up for auto-switch
4568 * and use long active_dwell time.
4570 if (!is_active || is_channel_passive(ch_info) ||
4571 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
4572 scan_ch->type = 0; /* passive */
4573 if (IWL_UCODE_API(priv->ucode_ver) == 1)
4574 scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
4576 scan_ch->type = 1; /* active */
4579 /* Set direct probe bits. These may be used both for active
4580 * scan channels (probes gets sent right away),
4581 * or for passive channels (probes get se sent only after
4582 * hearing clear Rx packet).*/
4583 if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
4585 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4587 /* uCode v1 does not allow setting direct probe bits on
4588 * passive channel. */
4589 if ((scan_ch->type & 1) && n_probes)
4590 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4593 /* Set txpower levels to defaults */
4594 scan_ch->tpc.dsp_atten = 110;
4595 /* scan_pwr_info->tpc.dsp_atten; */
4597 /*scan_pwr_info->tpc.tx_gain; */
4598 if (band == IEEE80211_BAND_5GHZ)
4599 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
4601 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
4602 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4604 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4608 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4610 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
4611 (scan_ch->type & 1) ?
4612 active_dwell : passive_dwell);
4618 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
4622 static void iwl3945_init_hw_rates(struct iwl_priv *priv,
4623 struct ieee80211_rate *rates)
4627 for (i = 0; i < IWL_RATE_COUNT; i++) {
4628 rates[i].bitrate = iwl3945_rates[i].ieee * 5;
4629 rates[i].hw_value = i; /* Rate scaling will work on indexes */
4630 rates[i].hw_value_short = i;
4632 if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
4634 * If CCK != 1M then set short preamble rate flag.
4636 rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
4637 0 : IEEE80211_RATE_SHORT_PREAMBLE;
4643 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4645 static int iwl3945_init_geos(struct iwl_priv *priv)
4647 struct iwl_channel_info *ch;
4648 struct ieee80211_supported_band *sband;
4649 struct ieee80211_channel *channels;
4650 struct ieee80211_channel *geo_ch;
4651 struct ieee80211_rate *rates;
4654 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
4655 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
4656 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4657 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4661 channels = kzalloc(sizeof(struct ieee80211_channel) *
4662 priv->channel_count, GFP_KERNEL);
4666 rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
4673 /* 5.2GHz channels start after the 2.4GHz channels */
4674 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4675 sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)];
4677 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
4678 sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
4680 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4681 sband->channels = channels;
4683 sband->bitrates = rates;
4684 sband->n_bitrates = IWL_RATE_COUNT;
4686 priv->ieee_channels = channels;
4687 priv->ieee_rates = rates;
4689 iwl3945_init_hw_rates(priv, rates);
4691 for (i = 0; i < priv->channel_count; i++) {
4692 ch = &priv->channel_info[i];
4694 /* FIXME: might be removed if scan is OK*/
4695 if (!is_channel_valid(ch))
4698 if (is_channel_a_band(ch))
4699 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4701 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4703 geo_ch = &sband->channels[sband->n_channels++];
4705 geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel);
4706 geo_ch->max_power = ch->max_power_avg;
4707 geo_ch->max_antenna_gain = 0xff;
4708 geo_ch->hw_value = ch->channel;
4710 if (is_channel_valid(ch)) {
4711 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
4712 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
4714 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
4715 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
4717 if (ch->flags & EEPROM_CHANNEL_RADAR)
4718 geo_ch->flags |= IEEE80211_CHAN_RADAR;
4720 if (ch->max_power_avg > priv->max_channel_txpower_limit)
4721 priv->max_channel_txpower_limit =
4724 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
4727 /* Save flags for reg domain usage */
4728 geo_ch->orig_flags = geo_ch->flags;
4730 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4731 ch->channel, geo_ch->center_freq,
4732 is_channel_a_band(ch) ? "5.2" : "2.4",
4733 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
4734 "restricted" : "valid",
4738 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
4739 priv->cfg->sku & IWL_SKU_A) {
4740 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
4741 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
4742 priv->pci_dev->device, priv->pci_dev->subsystem_device);
4743 priv->cfg->sku &= ~IWL_SKU_A;
4746 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4747 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
4748 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
4750 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
4751 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4752 &priv->bands[IEEE80211_BAND_2GHZ];
4753 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
4754 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4755 &priv->bands[IEEE80211_BAND_5GHZ];
4757 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4763 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
4765 static void iwl3945_free_geos(struct iwl_priv *priv)
4767 kfree(priv->ieee_channels);
4768 kfree(priv->ieee_rates);
4769 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
4772 /******************************************************************************
4774 * uCode download functions
4776 ******************************************************************************/
4778 static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
4780 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
4781 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
4782 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4783 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
4784 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4785 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
4789 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
4790 * looking at all data.
4792 static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
4799 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4801 rc = iwl_grab_nic_access(priv);
4805 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4806 IWL39_RTC_INST_LOWER_BOUND);
4809 for (; len > 0; len -= sizeof(u32), image++) {
4810 /* read data comes through single port, auto-incr addr */
4811 /* NOTE: Use the debugless read so we don't flood kernel log
4812 * if IWL_DL_IO is set */
4813 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4814 if (val != le32_to_cpu(*image)) {
4815 IWL_ERR(priv, "uCode INST section is invalid at "
4816 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4817 save_len - len, val, le32_to_cpu(*image));
4825 iwl_release_nic_access(priv);
4828 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
4835 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
4836 * using sample data 100 bytes apart. If these sample points are good,
4837 * it's a pretty good bet that everything between them is good, too.
4839 static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
4846 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4848 rc = iwl_grab_nic_access(priv);
4852 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
4853 /* read data comes through single port, auto-incr addr */
4854 /* NOTE: Use the debugless read so we don't flood kernel log
4855 * if IWL_DL_IO is set */
4856 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4857 i + IWL39_RTC_INST_LOWER_BOUND);
4858 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4859 if (val != le32_to_cpu(*image)) {
4860 #if 0 /* Enable this if you want to see details */
4861 IWL_ERR(priv, "uCode INST section is invalid at "
4862 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4872 iwl_release_nic_access(priv);
4879 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
4880 * and verify its contents
4882 static int iwl3945_verify_ucode(struct iwl_priv *priv)
4889 image = (__le32 *)priv->ucode_boot.v_addr;
4890 len = priv->ucode_boot.len;
4891 rc = iwl3945_verify_inst_sparse(priv, image, len);
4893 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
4897 /* Try initialize */
4898 image = (__le32 *)priv->ucode_init.v_addr;
4899 len = priv->ucode_init.len;
4900 rc = iwl3945_verify_inst_sparse(priv, image, len);
4902 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
4906 /* Try runtime/protocol */
4907 image = (__le32 *)priv->ucode_code.v_addr;
4908 len = priv->ucode_code.len;
4909 rc = iwl3945_verify_inst_sparse(priv, image, len);
4911 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
4915 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
4917 /* Since nothing seems to match, show first several data entries in
4918 * instruction SRAM, so maybe visual inspection will give a clue.
4919 * Selection of bootstrap image (vs. other images) is arbitrary. */
4920 image = (__le32 *)priv->ucode_boot.v_addr;
4921 len = priv->ucode_boot.len;
4922 rc = iwl3945_verify_inst_full(priv, image, len);
4927 static void iwl3945_nic_start(struct iwl_priv *priv)
4929 /* Remove all resets to allow NIC to operate */
4930 iwl_write32(priv, CSR_RESET, 0);
4934 * iwl3945_read_ucode - Read uCode images from disk file.
4936 * Copy into buffers for card to fetch via bus-mastering
4938 static int iwl3945_read_ucode(struct iwl_priv *priv)
4940 struct iwl_ucode *ucode;
4941 int ret = -EINVAL, index;
4942 const struct firmware *ucode_raw;
4943 /* firmware file name contains uCode/driver compatibility version */
4944 const char *name_pre = priv->cfg->fw_name_pre;
4945 const unsigned int api_max = priv->cfg->ucode_api_max;
4946 const unsigned int api_min = priv->cfg->ucode_api_min;
4950 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
4952 /* Ask kernel firmware_class module to get the boot firmware off disk.
4953 * request_firmware() is synchronous, file is in memory on return. */
4954 for (index = api_max; index >= api_min; index--) {
4955 sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
4956 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
4958 IWL_ERR(priv, "%s firmware file req failed: %d\n",
4965 if (index < api_max)
4966 IWL_ERR(priv, "Loaded firmware %s, "
4967 "which is deprecated. "
4968 " Please use API v%u instead.\n",
4970 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
4971 buf, ucode_raw->size);
4979 /* Make sure that we got at least our header! */
4980 if (ucode_raw->size < sizeof(*ucode)) {
4981 IWL_ERR(priv, "File size way too small!\n");
4986 /* Data from ucode file: header followed by uCode images */
4987 ucode = (void *)ucode_raw->data;
4989 priv->ucode_ver = le32_to_cpu(ucode->ver);
4990 api_ver = IWL_UCODE_API(priv->ucode_ver);
4991 inst_size = le32_to_cpu(ucode->inst_size);
4992 data_size = le32_to_cpu(ucode->data_size);
4993 init_size = le32_to_cpu(ucode->init_size);
4994 init_data_size = le32_to_cpu(ucode->init_data_size);
4995 boot_size = le32_to_cpu(ucode->boot_size);
4997 /* api_ver should match the api version forming part of the
4998 * firmware filename ... but we don't check for that and only rely
4999 * on the API version read from firware header from here on forward */
5001 if (api_ver < api_min || api_ver > api_max) {
5002 IWL_ERR(priv, "Driver unable to support your firmware API. "
5003 "Driver supports v%u, firmware is v%u.\n",
5005 priv->ucode_ver = 0;
5009 if (api_ver != api_max)
5010 IWL_ERR(priv, "Firmware has old API version. Expected %u, "
5011 "got %u. New firmware can be obtained "
5012 "from http://www.intellinuxwireless.org.\n",
5015 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
5016 IWL_UCODE_MAJOR(priv->ucode_ver),
5017 IWL_UCODE_MINOR(priv->ucode_ver),
5018 IWL_UCODE_API(priv->ucode_ver),
5019 IWL_UCODE_SERIAL(priv->ucode_ver));
5021 IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
5023 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
5024 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size);
5025 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size);
5026 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size);
5027 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size);
5030 /* Verify size of file vs. image size info in file's header */
5031 if (ucode_raw->size < sizeof(*ucode) +
5032 inst_size + data_size + init_size +
5033 init_data_size + boot_size) {
5035 IWL_DEBUG_INFO("uCode file size %d too small\n",
5036 (int)ucode_raw->size);
5041 /* Verify that uCode images will fit in card's SRAM */
5042 if (inst_size > IWL39_MAX_INST_SIZE) {
5043 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5049 if (data_size > IWL39_MAX_DATA_SIZE) {
5050 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5055 if (init_size > IWL39_MAX_INST_SIZE) {
5056 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5061 if (init_data_size > IWL39_MAX_DATA_SIZE) {
5062 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5067 if (boot_size > IWL39_MAX_BSM_SIZE) {
5068 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5074 /* Allocate ucode buffers for card's bus-master loading ... */
5076 /* Runtime instructions and 2 copies of data:
5077 * 1) unmodified from disk
5078 * 2) backup cache for save/restore during power-downs */
5079 priv->ucode_code.len = inst_size;
5080 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
5082 priv->ucode_data.len = data_size;
5083 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
5085 priv->ucode_data_backup.len = data_size;
5086 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
5088 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
5089 !priv->ucode_data_backup.v_addr)
5092 /* Initialization instructions and data */
5093 if (init_size && init_data_size) {
5094 priv->ucode_init.len = init_size;
5095 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
5097 priv->ucode_init_data.len = init_data_size;
5098 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
5100 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
5104 /* Bootstrap (instructions only, no data) */
5106 priv->ucode_boot.len = boot_size;
5107 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
5109 if (!priv->ucode_boot.v_addr)
5113 /* Copy images into buffers for card's bus-master reads ... */
5115 /* Runtime instructions (first block of data in file) */
5116 src = &ucode->data[0];
5117 len = priv->ucode_code.len;
5118 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
5119 memcpy(priv->ucode_code.v_addr, src, len);
5120 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5121 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
5123 /* Runtime data (2nd block)
5124 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5125 src = &ucode->data[inst_size];
5126 len = priv->ucode_data.len;
5127 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
5128 memcpy(priv->ucode_data.v_addr, src, len);
5129 memcpy(priv->ucode_data_backup.v_addr, src, len);
5131 /* Initialization instructions (3rd block) */
5133 src = &ucode->data[inst_size + data_size];
5134 len = priv->ucode_init.len;
5135 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5137 memcpy(priv->ucode_init.v_addr, src, len);
5140 /* Initialization data (4th block) */
5141 if (init_data_size) {
5142 src = &ucode->data[inst_size + data_size + init_size];
5143 len = priv->ucode_init_data.len;
5144 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5146 memcpy(priv->ucode_init_data.v_addr, src, len);
5149 /* Bootstrap instructions (5th block) */
5150 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
5151 len = priv->ucode_boot.len;
5152 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5154 memcpy(priv->ucode_boot.v_addr, src, len);
5156 /* We have our copies now, allow OS release its copies */
5157 release_firmware(ucode_raw);
5161 IWL_ERR(priv, "failed to allocate pci memory\n");
5163 iwl3945_dealloc_ucode_pci(priv);
5166 release_firmware(ucode_raw);
5174 * iwl3945_set_ucode_ptrs - Set uCode address location
5176 * Tell initialization uCode where to find runtime uCode.
5178 * BSM registers initially contain pointers to initialization uCode.
5179 * We need to replace them to load runtime uCode inst and data,
5180 * and to save runtime data when powering down.
5182 static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
5187 unsigned long flags;
5189 /* bits 31:0 for 3945 */
5190 pinst = priv->ucode_code.p_addr;
5191 pdata = priv->ucode_data_backup.p_addr;
5193 spin_lock_irqsave(&priv->lock, flags);
5194 rc = iwl_grab_nic_access(priv);
5196 spin_unlock_irqrestore(&priv->lock, flags);
5200 /* Tell bootstrap uCode where to find image to load */
5201 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
5202 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
5203 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
5204 priv->ucode_data.len);
5206 /* Inst byte count must be last to set up, bit 31 signals uCode
5207 * that all new ptr/size info is in place */
5208 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
5209 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
5211 iwl_release_nic_access(priv);
5213 spin_unlock_irqrestore(&priv->lock, flags);
5215 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5221 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5223 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5225 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5227 static void iwl3945_init_alive_start(struct iwl_priv *priv)
5229 /* Check alive response for "valid" sign from uCode */
5230 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
5231 /* We had an error bringing up the hardware, so take it
5232 * all the way back down so we can try again */
5233 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5237 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5238 * This is a paranoid check, because we would not have gotten the
5239 * "initialize" alive if code weren't properly loaded. */
5240 if (iwl3945_verify_ucode(priv)) {
5241 /* Runtime instruction load was bad;
5242 * take it all the way back down so we can try again */
5243 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5247 /* Send pointers to protocol/runtime uCode image ... init code will
5248 * load and launch runtime uCode, which will send us another "Alive"
5250 IWL_DEBUG_INFO("Initialization Alive received.\n");
5251 if (iwl3945_set_ucode_ptrs(priv)) {
5252 /* Runtime instruction load won't happen;
5253 * take it all the way back down so we can try again */
5254 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5260 queue_work(priv->workqueue, &priv->restart);
5265 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw,
5266 struct sk_buff *skb);
5269 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5270 * from protocol/runtime uCode (initialization uCode's
5271 * Alive gets handled by iwl3945_init_alive_start()).
5273 static void iwl3945_alive_start(struct iwl_priv *priv)
5276 int thermal_spin = 0;
5279 IWL_DEBUG_INFO("Runtime Alive received.\n");
5281 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
5282 /* We had an error bringing up the hardware, so take it
5283 * all the way back down so we can try again */
5284 IWL_DEBUG_INFO("Alive failed.\n");
5288 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5289 * This is a paranoid check, because we would not have gotten the
5290 * "runtime" alive if code weren't properly loaded. */
5291 if (iwl3945_verify_ucode(priv)) {
5292 /* Runtime instruction load was bad;
5293 * take it all the way back down so we can try again */
5294 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5298 iwl3945_clear_stations_table(priv);
5300 rc = iwl_grab_nic_access(priv);
5302 IWL_WARN(priv, "Can not read RFKILL status from adapter\n");
5306 rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
5307 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
5308 iwl_release_nic_access(priv);
5311 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5312 /* if RFKILL is not on, then wait for thermal
5313 * sensor in adapter to kick in */
5314 while (iwl3945_hw_get_temperature(priv) == 0) {
5320 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5323 set_bit(STATUS_RF_KILL_HW, &priv->status);
5325 /* After the ALIVE response, we can send commands to 3945 uCode */
5326 set_bit(STATUS_ALIVE, &priv->status);
5328 /* Clear out the uCode error bit if it is set */
5329 clear_bit(STATUS_FW_ERROR, &priv->status);
5331 if (iwl_is_rfkill(priv))
5334 ieee80211_wake_queues(priv->hw);
5336 priv->active_rate = priv->rates_mask;
5337 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
5339 iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
5341 if (iwl3945_is_associated(priv)) {
5342 struct iwl3945_rxon_cmd *active_rxon =
5343 (struct iwl3945_rxon_cmd *)(&priv->active39_rxon);
5345 memcpy(&priv->staging39_rxon, &priv->active39_rxon,
5346 sizeof(priv->staging39_rxon));
5347 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5349 /* Initialize our rx_config data */
5350 iwl3945_connection_init_rx_config(priv, priv->iw_mode);
5351 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
5354 /* Configure Bluetooth device coexistence support */
5355 iwl3945_send_bt_config(priv);
5357 /* Configure the adapter for unassociated operation */
5358 iwl3945_commit_rxon(priv);
5360 iwl3945_reg_txpower_periodic(priv);
5362 iwl3945_led_register(priv);
5364 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5365 set_bit(STATUS_READY, &priv->status);
5366 wake_up_interruptible(&priv->wait_command_queue);
5368 if (priv->error_recovering)
5369 iwl3945_error_recovery(priv);
5371 /* reassociate for ADHOC mode */
5372 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
5373 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
5376 iwl3945_mac_beacon_update(priv->hw, beacon);
5382 queue_work(priv->workqueue, &priv->restart);
5385 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
5387 static void __iwl3945_down(struct iwl_priv *priv)
5389 unsigned long flags;
5390 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
5391 struct ieee80211_conf *conf = NULL;
5393 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
5395 conf = ieee80211_get_hw_conf(priv->hw);
5398 set_bit(STATUS_EXIT_PENDING, &priv->status);
5400 iwl3945_led_unregister(priv);
5401 iwl3945_clear_stations_table(priv);
5403 /* Unblock any waiting calls */
5404 wake_up_interruptible_all(&priv->wait_command_queue);
5406 /* Wipe out the EXIT_PENDING status bit if we are not actually
5407 * exiting the module */
5409 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5411 /* stop and reset the on-board processor */
5412 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
5414 /* tell the device to stop sending interrupts */
5415 spin_lock_irqsave(&priv->lock, flags);
5416 iwl3945_disable_interrupts(priv);
5417 spin_unlock_irqrestore(&priv->lock, flags);
5418 iwl_synchronize_irq(priv);
5420 if (priv->mac80211_registered)
5421 ieee80211_stop_queues(priv->hw);
5423 /* If we have not previously called iwl3945_init() then
5424 * clear all bits but the RF Kill and SUSPEND bits and return */
5425 if (!iwl_is_init(priv)) {
5426 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
5428 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
5430 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
5431 STATUS_GEO_CONFIGURED |
5432 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
5434 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
5435 STATUS_EXIT_PENDING;
5439 /* ...otherwise clear out all the status bits but the RF Kill and
5440 * SUSPEND bits and continue taking the NIC down. */
5441 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
5443 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
5445 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
5446 STATUS_GEO_CONFIGURED |
5447 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
5449 test_bit(STATUS_FW_ERROR, &priv->status) <<
5451 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
5452 STATUS_EXIT_PENDING;
5454 spin_lock_irqsave(&priv->lock, flags);
5455 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
5456 spin_unlock_irqrestore(&priv->lock, flags);
5458 iwl3945_hw_txq_ctx_stop(priv);
5459 iwl3945_hw_rxq_stop(priv);
5461 spin_lock_irqsave(&priv->lock, flags);
5462 if (!iwl_grab_nic_access(priv)) {
5463 iwl_write_prph(priv, APMG_CLK_DIS_REG,
5464 APMG_CLK_VAL_DMA_CLK_RQT);
5465 iwl_release_nic_access(priv);
5467 spin_unlock_irqrestore(&priv->lock, flags);
5471 iwl3945_hw_nic_stop_master(priv);
5472 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
5473 iwl3945_hw_nic_reset(priv);
5476 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
5478 if (priv->ibss_beacon)
5479 dev_kfree_skb(priv->ibss_beacon);
5480 priv->ibss_beacon = NULL;
5482 /* clear out any free frames */
5483 iwl3945_clear_free_frames(priv);
5486 static void iwl3945_down(struct iwl_priv *priv)
5488 mutex_lock(&priv->mutex);
5489 __iwl3945_down(priv);
5490 mutex_unlock(&priv->mutex);
5492 iwl3945_cancel_deferred_work(priv);
5495 #define MAX_HW_RESTARTS 5
5497 static int __iwl3945_up(struct iwl_priv *priv)
5501 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5502 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
5506 if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
5507 IWL_WARN(priv, "Radio disabled by SW RF kill (module "
5512 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
5513 IWL_ERR(priv, "ucode not available for device bring up\n");
5517 /* If platform's RF_KILL switch is NOT set to KILL */
5518 if (iwl_read32(priv, CSR_GP_CNTRL) &
5519 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
5520 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5522 set_bit(STATUS_RF_KILL_HW, &priv->status);
5523 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
5524 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
5529 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5531 rc = iwl3945_hw_nic_init(priv);
5533 IWL_ERR(priv, "Unable to int nic\n");
5537 /* make sure rfkill handshake bits are cleared */
5538 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5539 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
5540 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
5542 /* clear (again), then enable host interrupts */
5543 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5544 iwl3945_enable_interrupts(priv);
5546 /* really make sure rfkill handshake bits are cleared */
5547 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5548 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5550 /* Copy original ucode data image from disk into backup cache.
5551 * This will be used to initialize the on-board processor's
5552 * data SRAM for a clean start when the runtime program first loads. */
5553 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
5554 priv->ucode_data.len);
5556 /* We return success when we resume from suspend and rf_kill is on. */
5557 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
5560 for (i = 0; i < MAX_HW_RESTARTS; i++) {
5562 iwl3945_clear_stations_table(priv);
5564 /* load bootstrap state machine,
5565 * load bootstrap program into processor's memory,
5566 * prepare to load the "initialize" uCode */
5567 priv->cfg->ops->lib->load_ucode(priv);
5571 "Unable to set up bootstrap uCode: %d\n", rc);
5575 /* start card; "initialize" will load runtime ucode */
5576 iwl3945_nic_start(priv);
5578 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
5583 set_bit(STATUS_EXIT_PENDING, &priv->status);
5584 __iwl3945_down(priv);
5585 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5587 /* tried to restart and config the device for as long as our
5588 * patience could withstand */
5589 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
5594 /*****************************************************************************
5596 * Workqueue callbacks
5598 *****************************************************************************/
5600 static void iwl3945_bg_init_alive_start(struct work_struct *data)
5602 struct iwl_priv *priv =
5603 container_of(data, struct iwl_priv, init_alive_start.work);
5605 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5608 mutex_lock(&priv->mutex);
5609 iwl3945_init_alive_start(priv);
5610 mutex_unlock(&priv->mutex);
5613 static void iwl3945_bg_alive_start(struct work_struct *data)
5615 struct iwl_priv *priv =
5616 container_of(data, struct iwl_priv, alive_start.work);
5618 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5621 mutex_lock(&priv->mutex);
5622 iwl3945_alive_start(priv);
5623 mutex_unlock(&priv->mutex);
5626 static void iwl3945_bg_rf_kill(struct work_struct *work)
5628 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
5630 wake_up_interruptible(&priv->wait_command_queue);
5632 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5635 mutex_lock(&priv->mutex);
5637 if (!iwl_is_rfkill(priv)) {
5638 IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
5639 "HW and/or SW RF Kill no longer active, restarting "
5641 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
5642 queue_work(priv->workqueue, &priv->restart);
5645 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
5646 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5647 "disabled by SW switch\n");
5649 IWL_WARN(priv, "Radio Frequency Kill Switch is On:\n"
5650 "Kill switch must be turned off for "
5651 "wireless networking to work.\n");
5654 mutex_unlock(&priv->mutex);
5655 iwl3945_rfkill_set_hw_state(priv);
5658 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5660 static void iwl3945_bg_scan_check(struct work_struct *data)
5662 struct iwl_priv *priv =
5663 container_of(data, struct iwl_priv, scan_check.work);
5665 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5668 mutex_lock(&priv->mutex);
5669 if (test_bit(STATUS_SCANNING, &priv->status) ||
5670 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5671 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
5672 "Scan completion watchdog resetting adapter (%dms)\n",
5673 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
5675 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
5676 iwl3945_send_scan_abort(priv);
5678 mutex_unlock(&priv->mutex);
5681 static void iwl3945_bg_request_scan(struct work_struct *data)
5683 struct iwl_priv *priv =
5684 container_of(data, struct iwl_priv, request_scan);
5685 struct iwl_host_cmd cmd = {
5686 .id = REPLY_SCAN_CMD,
5687 .len = sizeof(struct iwl3945_scan_cmd),
5688 .meta.flags = CMD_SIZE_HUGE,
5691 struct iwl3945_scan_cmd *scan;
5692 struct ieee80211_conf *conf = NULL;
5694 enum ieee80211_band band;
5695 DECLARE_SSID_BUF(ssid);
5697 conf = ieee80211_get_hw_conf(priv->hw);
5699 mutex_lock(&priv->mutex);
5701 if (!iwl_is_ready(priv)) {
5702 IWL_WARN(priv, "request scan called when driver not ready.\n");
5706 /* Make sure the scan wasn't canceled before this queued work
5707 * was given the chance to run... */
5708 if (!test_bit(STATUS_SCANNING, &priv->status))
5711 /* This should never be called or scheduled if there is currently
5712 * a scan active in the hardware. */
5713 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
5714 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5715 "Ignoring second request.\n");
5720 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5721 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5725 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5726 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5730 if (iwl_is_rfkill(priv)) {
5731 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5735 if (!test_bit(STATUS_READY, &priv->status)) {
5736 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5740 if (!priv->scan_bands) {
5741 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5745 if (!priv->scan39) {
5746 priv->scan39 = kmalloc(sizeof(struct iwl3945_scan_cmd) +
5747 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
5748 if (!priv->scan39) {
5753 scan = priv->scan39;
5754 memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
5756 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
5757 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
5759 if (iwl3945_is_associated(priv)) {
5762 u32 suspend_time = 100;
5763 u32 scan_suspend_time = 100;
5764 unsigned long flags;
5766 IWL_DEBUG_INFO("Scanning while associated...\n");
5768 spin_lock_irqsave(&priv->lock, flags);
5769 interval = priv->beacon_int;
5770 spin_unlock_irqrestore(&priv->lock, flags);
5772 scan->suspend_time = 0;
5773 scan->max_out_time = cpu_to_le32(200 * 1024);
5775 interval = suspend_time;
5777 * suspend time format:
5778 * 0-19: beacon interval in usec (time before exec.)
5780 * 24-31: number of beacons (suspend between channels)
5783 extra = (suspend_time / interval) << 24;
5784 scan_suspend_time = 0xFF0FFFFF &
5785 (extra | ((suspend_time % interval) * 1024));
5787 scan->suspend_time = cpu_to_le32(scan_suspend_time);
5788 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5789 scan_suspend_time, interval);
5792 /* We should add the ability for user to lock to PASSIVE ONLY */
5793 if (priv->one_direct_scan) {
5795 ("Kicking off one direct scan for '%s'\n",
5796 print_ssid(ssid, priv->direct_ssid,
5797 priv->direct_ssid_len));
5798 scan->direct_scan[0].id = WLAN_EID_SSID;
5799 scan->direct_scan[0].len = priv->direct_ssid_len;
5800 memcpy(scan->direct_scan[0].ssid,
5801 priv->direct_ssid, priv->direct_ssid_len);
5804 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
5806 /* We don't build a direct scan probe request; the uCode will do
5807 * that based on the direct_mask added to each channel entry */
5808 scan->tx_cmd.len = cpu_to_le16(
5809 iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
5810 IWL_MAX_SCAN_SIZE - sizeof(*scan)));
5811 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
5812 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
5813 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
5815 /* flags + rate selection */
5817 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
5818 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
5819 scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
5820 scan->good_CRC_th = 0;
5821 band = IEEE80211_BAND_2GHZ;
5822 } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
5823 scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
5824 scan->good_CRC_th = IWL_GOOD_CRC_TH;
5825 band = IEEE80211_BAND_5GHZ;
5827 IWL_WARN(priv, "Invalid scan band count\n");
5831 /* select Rx antennas */
5832 scan->flags |= iwl3945_get_antenna_flags(priv);
5834 if (priv->iw_mode == NL80211_IFTYPE_MONITOR)
5835 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
5837 scan->channel_count =
5838 iwl3945_get_channels_for_scan(priv, band, 1, /* active */
5840 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
5842 if (scan->channel_count == 0) {
5843 IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
5847 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
5848 scan->channel_count * sizeof(struct iwl3945_scan_channel);
5850 scan->len = cpu_to_le16(cmd.len);
5852 set_bit(STATUS_SCAN_HW, &priv->status);
5853 rc = iwl3945_send_cmd_sync(priv, &cmd);
5857 queue_delayed_work(priv->workqueue, &priv->scan_check,
5858 IWL_SCAN_CHECK_WATCHDOG);
5860 mutex_unlock(&priv->mutex);
5864 /* can not perform scan make sure we clear scanning
5865 * bits from status so next scan request can be performed.
5866 * if we dont clear scanning status bit here all next scan
5869 clear_bit(STATUS_SCAN_HW, &priv->status);
5870 clear_bit(STATUS_SCANNING, &priv->status);
5872 /* inform mac80211 scan aborted */
5873 queue_work(priv->workqueue, &priv->scan_completed);
5874 mutex_unlock(&priv->mutex);
5877 static void iwl3945_bg_up(struct work_struct *data)
5879 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
5881 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5884 mutex_lock(&priv->mutex);
5886 mutex_unlock(&priv->mutex);
5887 iwl3945_rfkill_set_hw_state(priv);
5890 static void iwl3945_bg_restart(struct work_struct *data)
5892 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
5894 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5898 queue_work(priv->workqueue, &priv->up);
5901 static void iwl3945_bg_rx_replenish(struct work_struct *data)
5903 struct iwl_priv *priv =
5904 container_of(data, struct iwl_priv, rx_replenish);
5906 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5909 mutex_lock(&priv->mutex);
5910 iwl3945_rx_replenish(priv);
5911 mutex_unlock(&priv->mutex);
5914 #define IWL_DELAY_NEXT_SCAN (HZ*2)
5916 static void iwl3945_post_associate(struct iwl_priv *priv)
5919 struct ieee80211_conf *conf = NULL;
5921 if (priv->iw_mode == NL80211_IFTYPE_AP) {
5922 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
5927 IWL_DEBUG_ASSOC("Associated as %d to: %pM\n",
5928 priv->assoc_id, priv->active39_rxon.bssid_addr);
5930 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5933 if (!priv->vif || !priv->is_open)
5936 iwl3945_scan_cancel_timeout(priv, 200);
5938 conf = ieee80211_get_hw_conf(priv->hw);
5940 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5941 iwl3945_commit_rxon(priv);
5943 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
5944 iwl3945_setup_rxon_timing(priv);
5945 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
5946 sizeof(priv->rxon_timing), &priv->rxon_timing);
5948 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
5949 "Attempting to continue.\n");
5951 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
5953 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
5955 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
5956 priv->assoc_id, priv->beacon_int);
5958 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
5959 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
5961 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
5963 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
5964 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
5965 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
5967 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5969 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
5970 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5974 iwl3945_commit_rxon(priv);
5976 switch (priv->iw_mode) {
5977 case NL80211_IFTYPE_STATION:
5978 iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
5981 case NL80211_IFTYPE_ADHOC:
5984 iwl3945_add_station(priv, priv->bssid, 0, 0);
5985 iwl3945_sync_sta(priv, IWL_STA_ID,
5986 (priv->band == IEEE80211_BAND_5GHZ) ?
5987 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
5989 iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
5990 iwl3945_send_beacon_cmd(priv);
5995 IWL_ERR(priv, "%s Should not be called in %d mode\n",
5996 __func__, priv->iw_mode);
6000 iwl3945_activate_qos(priv, 0);
6002 /* we have just associated, don't start scan too early */
6003 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
6006 static void iwl3945_bg_abort_scan(struct work_struct *work)
6008 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
6010 if (!iwl_is_ready(priv))
6013 mutex_lock(&priv->mutex);
6015 set_bit(STATUS_SCAN_ABORTING, &priv->status);
6016 iwl3945_send_scan_abort(priv);
6018 mutex_unlock(&priv->mutex);
6021 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
6023 static void iwl3945_bg_scan_completed(struct work_struct *work)
6025 struct iwl_priv *priv =
6026 container_of(work, struct iwl_priv, scan_completed);
6028 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
6030 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
6033 if (test_bit(STATUS_CONF_PENDING, &priv->status))
6034 iwl3945_mac_config(priv->hw, 0);
6036 ieee80211_scan_completed(priv->hw);
6038 /* Since setting the TXPOWER may have been deferred while
6039 * performing the scan, fire one off */
6040 mutex_lock(&priv->mutex);
6041 iwl3945_hw_reg_send_txpower(priv);
6042 mutex_unlock(&priv->mutex);
6045 /*****************************************************************************
6047 * mac80211 entry point functions
6049 *****************************************************************************/
6051 #define UCODE_READY_TIMEOUT (2 * HZ)
6053 static int iwl3945_mac_start(struct ieee80211_hw *hw)
6055 struct iwl_priv *priv = hw->priv;
6058 IWL_DEBUG_MAC80211("enter\n");
6060 if (pci_enable_device(priv->pci_dev)) {
6061 IWL_ERR(priv, "Fail to pci_enable_device\n");
6064 pci_restore_state(priv->pci_dev);
6065 pci_enable_msi(priv->pci_dev);
6067 ret = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED,
6070 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
6071 goto out_disable_msi;
6074 /* we should be verifying the device is ready to be opened */
6075 mutex_lock(&priv->mutex);
6077 memset(&priv->staging39_rxon, 0, sizeof(struct iwl3945_rxon_cmd));
6078 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6079 * ucode filename and max sizes are card-specific. */
6081 if (!priv->ucode_code.len) {
6082 ret = iwl3945_read_ucode(priv);
6084 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
6085 mutex_unlock(&priv->mutex);
6086 goto out_release_irq;
6090 ret = __iwl3945_up(priv);
6092 mutex_unlock(&priv->mutex);
6094 iwl3945_rfkill_set_hw_state(priv);
6097 goto out_release_irq;
6099 IWL_DEBUG_INFO("Start UP work.\n");
6101 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
6104 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6105 * mac80211 will not be run successfully. */
6106 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
6107 test_bit(STATUS_READY, &priv->status),
6108 UCODE_READY_TIMEOUT);
6110 if (!test_bit(STATUS_READY, &priv->status)) {
6112 "Wait for START_ALIVE timeout after %dms.\n",
6113 jiffies_to_msecs(UCODE_READY_TIMEOUT));
6115 goto out_release_irq;
6120 IWL_DEBUG_MAC80211("leave\n");
6124 free_irq(priv->pci_dev->irq, priv);
6126 pci_disable_msi(priv->pci_dev);
6127 pci_disable_device(priv->pci_dev);
6129 IWL_DEBUG_MAC80211("leave - failed\n");
6133 static void iwl3945_mac_stop(struct ieee80211_hw *hw)
6135 struct iwl_priv *priv = hw->priv;
6137 IWL_DEBUG_MAC80211("enter\n");
6139 if (!priv->is_open) {
6140 IWL_DEBUG_MAC80211("leave - skip\n");
6146 if (iwl_is_ready_rf(priv)) {
6147 /* stop mac, cancel any scan request and clear
6148 * RXON_FILTER_ASSOC_MSK BIT
6150 mutex_lock(&priv->mutex);
6151 iwl3945_scan_cancel_timeout(priv, 100);
6152 mutex_unlock(&priv->mutex);
6157 flush_workqueue(priv->workqueue);
6158 free_irq(priv->pci_dev->irq, priv);
6159 pci_disable_msi(priv->pci_dev);
6160 pci_save_state(priv->pci_dev);
6161 pci_disable_device(priv->pci_dev);
6163 IWL_DEBUG_MAC80211("leave\n");
6166 static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
6168 struct iwl_priv *priv = hw->priv;
6170 IWL_DEBUG_MAC80211("enter\n");
6172 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
6173 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
6175 if (iwl3945_tx_skb(priv, skb))
6176 dev_kfree_skb_any(skb);
6178 IWL_DEBUG_MAC80211("leave\n");
6179 return NETDEV_TX_OK;
6182 static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
6183 struct ieee80211_if_init_conf *conf)
6185 struct iwl_priv *priv = hw->priv;
6186 unsigned long flags;
6188 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
6191 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6195 spin_lock_irqsave(&priv->lock, flags);
6196 priv->vif = conf->vif;
6197 priv->iw_mode = conf->type;
6199 spin_unlock_irqrestore(&priv->lock, flags);
6201 mutex_lock(&priv->mutex);
6203 if (conf->mac_addr) {
6204 IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr);
6205 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
6208 if (iwl_is_ready(priv))
6209 iwl3945_set_mode(priv, conf->type);
6211 mutex_unlock(&priv->mutex);
6213 IWL_DEBUG_MAC80211("leave\n");
6218 * iwl3945_mac_config - mac80211 config callback
6220 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6221 * be set inappropriately and the driver currently sets the hardware up to
6222 * use it whenever needed.
6224 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed)
6226 struct iwl_priv *priv = hw->priv;
6227 const struct iwl_channel_info *ch_info;
6228 struct ieee80211_conf *conf = &hw->conf;
6229 unsigned long flags;
6232 mutex_lock(&priv->mutex);
6233 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
6235 if (!iwl_is_ready(priv)) {
6236 IWL_DEBUG_MAC80211("leave - not ready\n");
6241 if (unlikely(!iwl3945_mod_params.disable_hw_scan &&
6242 test_bit(STATUS_SCANNING, &priv->status))) {
6243 IWL_DEBUG_MAC80211("leave - scanning\n");
6244 set_bit(STATUS_CONF_PENDING, &priv->status);
6245 mutex_unlock(&priv->mutex);
6249 spin_lock_irqsave(&priv->lock, flags);
6251 ch_info = iwl3945_get_channel_info(priv, conf->channel->band,
6252 conf->channel->hw_value);
6253 if (!is_channel_valid(ch_info)) {
6254 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
6255 conf->channel->hw_value, conf->channel->band);
6256 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6257 spin_unlock_irqrestore(&priv->lock, flags);
6262 iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value);
6264 iwl3945_set_flags_for_phymode(priv, conf->channel->band);
6266 /* The list of supported rates and rate mask can be different
6267 * for each phymode; since the phymode may have changed, reset
6268 * the rate mask to what mac80211 lists */
6269 iwl3945_set_rate(priv);
6271 spin_unlock_irqrestore(&priv->lock, flags);
6273 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6274 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
6275 iwl3945_hw_channel_switch(priv, conf->channel);
6280 iwl3945_radio_kill_sw(priv, !conf->radio_enabled);
6282 if (!conf->radio_enabled) {
6283 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6287 if (iwl_is_rfkill(priv)) {
6288 IWL_DEBUG_MAC80211("leave - RF kill\n");
6293 iwl3945_set_rate(priv);
6295 if (memcmp(&priv->active39_rxon,
6296 &priv->staging39_rxon, sizeof(priv->staging39_rxon)))
6297 iwl3945_commit_rxon(priv);
6299 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6301 IWL_DEBUG_MAC80211("leave\n");
6304 clear_bit(STATUS_CONF_PENDING, &priv->status);
6305 mutex_unlock(&priv->mutex);
6309 static void iwl3945_config_ap(struct iwl_priv *priv)
6313 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
6316 /* The following should be done only at AP bring up */
6317 if (!(iwl3945_is_associated(priv))) {
6319 /* RXON - unassoc (to set timing command) */
6320 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6321 iwl3945_commit_rxon(priv);
6324 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
6325 iwl3945_setup_rxon_timing(priv);
6326 rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
6327 sizeof(priv->rxon_timing), &priv->rxon_timing);
6329 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
6330 "Attempting to continue.\n");
6332 /* FIXME: what should be the assoc_id for AP? */
6333 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
6334 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
6335 priv->staging39_rxon.flags |=
6336 RXON_FLG_SHORT_PREAMBLE_MSK;
6338 priv->staging39_rxon.flags &=
6339 ~RXON_FLG_SHORT_PREAMBLE_MSK;
6341 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
6342 if (priv->assoc_capability &
6343 WLAN_CAPABILITY_SHORT_SLOT_TIME)
6344 priv->staging39_rxon.flags |=
6345 RXON_FLG_SHORT_SLOT_MSK;
6347 priv->staging39_rxon.flags &=
6348 ~RXON_FLG_SHORT_SLOT_MSK;
6350 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
6351 priv->staging39_rxon.flags &=
6352 ~RXON_FLG_SHORT_SLOT_MSK;
6354 /* restore RXON assoc */
6355 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
6356 iwl3945_commit_rxon(priv);
6357 iwl3945_add_station(priv, iwl_bcast_addr, 0, 0);
6359 iwl3945_send_beacon_cmd(priv);
6361 /* FIXME - we need to add code here to detect a totally new
6362 * configuration, reset the AP, unassoc, rxon timing, assoc,
6363 * clear sta table, add BCAST sta... */
6366 static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
6367 struct ieee80211_vif *vif,
6368 struct ieee80211_if_conf *conf)
6370 struct iwl_priv *priv = hw->priv;
6376 if (priv->vif != vif) {
6377 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6381 /* handle this temporarily here */
6382 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
6383 conf->changed & IEEE80211_IFCC_BEACON) {
6384 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
6387 mutex_lock(&priv->mutex);
6388 rc = iwl3945_mac_beacon_update(hw, beacon);
6389 mutex_unlock(&priv->mutex);
6394 if (!iwl_is_alive(priv))
6397 mutex_lock(&priv->mutex);
6400 IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid);
6403 * very dubious code was here; the probe filtering flag is never set:
6405 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6406 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6409 if (priv->iw_mode == NL80211_IFTYPE_AP) {
6411 conf->bssid = priv->mac_addr;
6412 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
6413 IWL_DEBUG_MAC80211("bssid was set to: %pM\n",
6416 if (priv->ibss_beacon)
6417 dev_kfree_skb(priv->ibss_beacon);
6419 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
6422 if (iwl_is_rfkill(priv))
6425 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
6426 !is_multicast_ether_addr(conf->bssid)) {
6427 /* If there is currently a HW scan going on in the background
6428 * then we need to cancel it else the RXON below will fail. */
6429 if (iwl3945_scan_cancel_timeout(priv, 100)) {
6430 IWL_WARN(priv, "Aborted scan still in progress "
6432 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6433 mutex_unlock(&priv->mutex);
6436 memcpy(priv->staging39_rxon.bssid_addr, conf->bssid, ETH_ALEN);
6438 /* TODO: Audit driver for usage of these members and see
6439 * if mac80211 deprecates them (priv->bssid looks like it
6440 * shouldn't be there, but I haven't scanned the IBSS code
6441 * to verify) - jpk */
6442 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
6444 if (priv->iw_mode == NL80211_IFTYPE_AP)
6445 iwl3945_config_ap(priv);
6447 rc = iwl3945_commit_rxon(priv);
6448 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
6449 iwl3945_add_station(priv,
6450 priv->active39_rxon.bssid_addr, 1, 0);
6454 iwl3945_scan_cancel_timeout(priv, 100);
6455 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6456 iwl3945_commit_rxon(priv);
6460 IWL_DEBUG_MAC80211("leave\n");
6461 mutex_unlock(&priv->mutex);
6466 static void iwl3945_configure_filter(struct ieee80211_hw *hw,
6467 unsigned int changed_flags,
6468 unsigned int *total_flags,
6469 int mc_count, struct dev_addr_list *mc_list)
6471 struct iwl_priv *priv = hw->priv;
6472 __le32 *filter_flags = &priv->staging39_rxon.filter_flags;
6474 IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n",
6475 changed_flags, *total_flags);
6477 if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
6478 if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))
6479 *filter_flags |= RXON_FILTER_PROMISC_MSK;
6481 *filter_flags &= ~RXON_FILTER_PROMISC_MSK;
6483 if (changed_flags & FIF_ALLMULTI) {
6484 if (*total_flags & FIF_ALLMULTI)
6485 *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK;
6487 *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK;
6489 if (changed_flags & FIF_CONTROL) {
6490 if (*total_flags & FIF_CONTROL)
6491 *filter_flags |= RXON_FILTER_CTL2HOST_MSK;
6493 *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK;
6495 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
6496 if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
6497 *filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
6499 *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK;
6502 /* We avoid iwl_commit_rxon here to commit the new filter flags
6503 * since mac80211 will call ieee80211_hw_config immediately.
6504 * (mc_list is not supported at this time). Otherwise, we need to
6505 * queue a background iwl_commit_rxon work.
6508 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
6509 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
6512 static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
6513 struct ieee80211_if_init_conf *conf)
6515 struct iwl_priv *priv = hw->priv;
6517 IWL_DEBUG_MAC80211("enter\n");
6519 mutex_lock(&priv->mutex);
6521 if (iwl_is_ready_rf(priv)) {
6522 iwl3945_scan_cancel_timeout(priv, 100);
6523 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6524 iwl3945_commit_rxon(priv);
6526 if (priv->vif == conf->vif) {
6528 memset(priv->bssid, 0, ETH_ALEN);
6530 mutex_unlock(&priv->mutex);
6532 IWL_DEBUG_MAC80211("leave\n");
6535 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
6537 static void iwl3945_bss_info_changed(struct ieee80211_hw *hw,
6538 struct ieee80211_vif *vif,
6539 struct ieee80211_bss_conf *bss_conf,
6542 struct iwl_priv *priv = hw->priv;
6544 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
6546 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
6547 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6548 bss_conf->use_short_preamble);
6549 if (bss_conf->use_short_preamble)
6550 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
6552 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
6555 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
6556 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
6557 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
6558 priv->staging39_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
6560 priv->staging39_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
6563 if (changes & BSS_CHANGED_ASSOC) {
6564 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
6565 /* This should never happen as this function should
6566 * never be called from interrupt context. */
6567 if (WARN_ON_ONCE(in_interrupt()))
6569 if (bss_conf->assoc) {
6570 priv->assoc_id = bss_conf->aid;
6571 priv->beacon_int = bss_conf->beacon_int;
6572 priv->timestamp = bss_conf->timestamp;
6573 priv->assoc_capability = bss_conf->assoc_capability;
6574 priv->next_scan_jiffies = jiffies +
6575 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
6576 mutex_lock(&priv->mutex);
6577 iwl3945_post_associate(priv);
6578 mutex_unlock(&priv->mutex);
6581 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
6583 } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) {
6584 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
6585 iwl3945_send_rxon_assoc(priv);
6590 static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
6593 unsigned long flags;
6594 struct iwl_priv *priv = hw->priv;
6595 DECLARE_SSID_BUF(ssid_buf);
6597 IWL_DEBUG_MAC80211("enter\n");
6599 mutex_lock(&priv->mutex);
6600 spin_lock_irqsave(&priv->lock, flags);
6602 if (!iwl_is_ready_rf(priv)) {
6604 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6608 /* we don't schedule scan within next_scan_jiffies period */
6609 if (priv->next_scan_jiffies &&
6610 time_after(priv->next_scan_jiffies, jiffies)) {
6614 /* if we just finished scan ask for delay for a broadcast scan */
6615 if ((len == 0) && priv->last_scan_jiffies &&
6616 time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN,
6622 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6623 print_ssid(ssid_buf, ssid, len), (int)len);
6625 priv->one_direct_scan = 1;
6626 priv->direct_ssid_len = (u8)
6627 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
6628 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
6630 priv->one_direct_scan = 0;
6632 rc = iwl3945_scan_initiate(priv);
6634 IWL_DEBUG_MAC80211("leave\n");
6637 spin_unlock_irqrestore(&priv->lock, flags);
6638 mutex_unlock(&priv->mutex);
6643 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
6644 const u8 *local_addr, const u8 *addr,
6645 struct ieee80211_key_conf *key)
6647 struct iwl_priv *priv = hw->priv;
6651 IWL_DEBUG_MAC80211("enter\n");
6653 if (iwl3945_mod_params.sw_crypto) {
6654 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6658 if (is_zero_ether_addr(addr))
6659 /* only support pairwise keys */
6662 sta_id = iwl3945_hw_find_station(priv, addr);
6663 if (sta_id == IWL_INVALID_STATION) {
6664 IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
6669 mutex_lock(&priv->mutex);
6671 iwl3945_scan_cancel_timeout(priv, 100);
6675 rc = iwl3945_update_sta_key_info(priv, key, sta_id);
6677 iwl3945_set_rxon_hwcrypto(priv, 1);
6678 iwl3945_commit_rxon(priv);
6679 key->hw_key_idx = sta_id;
6680 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
6681 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
6685 rc = iwl3945_clear_sta_key_info(priv, sta_id);
6687 iwl3945_set_rxon_hwcrypto(priv, 0);
6688 iwl3945_commit_rxon(priv);
6689 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6696 IWL_DEBUG_MAC80211("leave\n");
6697 mutex_unlock(&priv->mutex);
6702 static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
6703 const struct ieee80211_tx_queue_params *params)
6705 struct iwl_priv *priv = hw->priv;
6706 unsigned long flags;
6709 IWL_DEBUG_MAC80211("enter\n");
6711 if (!iwl_is_ready_rf(priv)) {
6712 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6716 if (queue >= AC_NUM) {
6717 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
6721 q = AC_NUM - 1 - queue;
6723 spin_lock_irqsave(&priv->lock, flags);
6725 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
6726 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
6727 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
6728 priv->qos_data.def_qos_parm.ac[q].edca_txop =
6729 cpu_to_le16((params->txop * 32));
6731 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
6732 priv->qos_data.qos_active = 1;
6734 spin_unlock_irqrestore(&priv->lock, flags);
6736 mutex_lock(&priv->mutex);
6737 if (priv->iw_mode == NL80211_IFTYPE_AP)
6738 iwl3945_activate_qos(priv, 1);
6739 else if (priv->assoc_id && iwl3945_is_associated(priv))
6740 iwl3945_activate_qos(priv, 0);
6742 mutex_unlock(&priv->mutex);
6744 IWL_DEBUG_MAC80211("leave\n");
6748 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
6749 struct ieee80211_tx_queue_stats *stats)
6751 struct iwl_priv *priv = hw->priv;
6753 struct iwl3945_tx_queue *txq;
6754 struct iwl_queue *q;
6755 unsigned long flags;
6757 IWL_DEBUG_MAC80211("enter\n");
6759 if (!iwl_is_ready_rf(priv)) {
6760 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6764 spin_lock_irqsave(&priv->lock, flags);
6766 for (i = 0; i < AC_NUM; i++) {
6767 txq = &priv->txq39[i];
6769 avail = iwl_queue_space(q);
6771 stats[i].len = q->n_window - avail;
6772 stats[i].limit = q->n_window - q->high_mark;
6773 stats[i].count = q->n_window;
6776 spin_unlock_irqrestore(&priv->lock, flags);
6778 IWL_DEBUG_MAC80211("leave\n");
6783 static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw)
6785 struct iwl_priv *priv = hw->priv;
6786 unsigned long flags;
6788 mutex_lock(&priv->mutex);
6789 IWL_DEBUG_MAC80211("enter\n");
6791 iwl_reset_qos(priv);
6793 spin_lock_irqsave(&priv->lock, flags);
6795 priv->assoc_capability = 0;
6796 priv->call_post_assoc_from_beacon = 0;
6798 /* new association get rid of ibss beacon skb */
6799 if (priv->ibss_beacon)
6800 dev_kfree_skb(priv->ibss_beacon);
6802 priv->ibss_beacon = NULL;
6804 priv->beacon_int = priv->hw->conf.beacon_int;
6805 priv->timestamp = 0;
6806 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
6807 priv->beacon_int = 0;
6809 spin_unlock_irqrestore(&priv->lock, flags);
6811 if (!iwl_is_ready_rf(priv)) {
6812 IWL_DEBUG_MAC80211("leave - not ready\n");
6813 mutex_unlock(&priv->mutex);
6817 /* we are restarting association process
6818 * clear RXON_FILTER_ASSOC_MSK bit
6820 if (priv->iw_mode != NL80211_IFTYPE_AP) {
6821 iwl3945_scan_cancel_timeout(priv, 100);
6822 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6823 iwl3945_commit_rxon(priv);
6826 /* Per mac80211.h: This is only used in IBSS mode... */
6827 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6829 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
6830 mutex_unlock(&priv->mutex);
6834 iwl3945_set_rate(priv);
6836 mutex_unlock(&priv->mutex);
6838 IWL_DEBUG_MAC80211("leave\n");
6842 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
6844 struct iwl_priv *priv = hw->priv;
6845 unsigned long flags;
6847 IWL_DEBUG_MAC80211("enter\n");
6849 if (!iwl_is_ready_rf(priv)) {
6850 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6854 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6855 IWL_DEBUG_MAC80211("leave - not IBSS\n");
6859 spin_lock_irqsave(&priv->lock, flags);
6861 if (priv->ibss_beacon)
6862 dev_kfree_skb(priv->ibss_beacon);
6864 priv->ibss_beacon = skb;
6868 IWL_DEBUG_MAC80211("leave\n");
6869 spin_unlock_irqrestore(&priv->lock, flags);
6871 iwl_reset_qos(priv);
6873 iwl3945_post_associate(priv);
6879 /*****************************************************************************
6883 *****************************************************************************/
6885 #ifdef CONFIG_IWL3945_DEBUG
6888 * The following adds a new attribute to the sysfs representation
6889 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
6890 * used for controlling the debug level.
6892 * See the level definitions in iwl for details.
6894 static ssize_t show_debug_level(struct device *d,
6895 struct device_attribute *attr, char *buf)
6897 struct iwl_priv *priv = d->driver_data;
6899 return sprintf(buf, "0x%08X\n", priv->debug_level);
6901 static ssize_t store_debug_level(struct device *d,
6902 struct device_attribute *attr,
6903 const char *buf, size_t count)
6905 struct iwl_priv *priv = d->driver_data;
6909 ret = strict_strtoul(buf, 0, &val);
6911 IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
6913 priv->debug_level = val;
6915 return strnlen(buf, count);
6918 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
6919 show_debug_level, store_debug_level);
6921 #endif /* CONFIG_IWL3945_DEBUG */
6923 static ssize_t show_temperature(struct device *d,
6924 struct device_attribute *attr, char *buf)
6926 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6928 if (!iwl_is_alive(priv))
6931 return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
6934 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
6936 static ssize_t show_tx_power(struct device *d,
6937 struct device_attribute *attr, char *buf)
6939 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6940 return sprintf(buf, "%d\n", priv->user_txpower_limit);
6943 static ssize_t store_tx_power(struct device *d,
6944 struct device_attribute *attr,
6945 const char *buf, size_t count)
6947 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6948 char *p = (char *)buf;
6951 val = simple_strtoul(p, &p, 10);
6953 IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
6955 iwl3945_hw_reg_set_txpower(priv, val);
6960 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
6962 static ssize_t show_flags(struct device *d,
6963 struct device_attribute *attr, char *buf)
6965 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6967 return sprintf(buf, "0x%04X\n", priv->active39_rxon.flags);
6970 static ssize_t store_flags(struct device *d,
6971 struct device_attribute *attr,
6972 const char *buf, size_t count)
6974 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6975 u32 flags = simple_strtoul(buf, NULL, 0);
6977 mutex_lock(&priv->mutex);
6978 if (le32_to_cpu(priv->staging39_rxon.flags) != flags) {
6979 /* Cancel any currently running scans... */
6980 if (iwl3945_scan_cancel_timeout(priv, 100))
6981 IWL_WARN(priv, "Could not cancel scan.\n");
6983 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6985 priv->staging39_rxon.flags = cpu_to_le32(flags);
6986 iwl3945_commit_rxon(priv);
6989 mutex_unlock(&priv->mutex);
6994 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
6996 static ssize_t show_filter_flags(struct device *d,
6997 struct device_attribute *attr, char *buf)
6999 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
7001 return sprintf(buf, "0x%04X\n",
7002 le32_to_cpu(priv->active39_rxon.filter_flags));
7005 static ssize_t store_filter_flags(struct device *d,
7006 struct device_attribute *attr,
7007 const char *buf, size_t count)
7009 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
7010 u32 filter_flags = simple_strtoul(buf, NULL, 0);
7012 mutex_lock(&priv->mutex);
7013 if (le32_to_cpu(priv->staging39_rxon.filter_flags) != filter_flags) {
7014 /* Cancel any currently running scans... */
7015 if (iwl3945_scan_cancel_timeout(priv, 100))
7016 IWL_WARN(priv, "Could not cancel scan.\n");
7018 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7019 "0x%04X\n", filter_flags);
7020 priv->staging39_rxon.filter_flags =
7021 cpu_to_le32(filter_flags);
7022 iwl3945_commit_rxon(priv);
7025 mutex_unlock(&priv->mutex);
7030 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
7031 store_filter_flags);
7033 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7035 static ssize_t show_measurement(struct device *d,
7036 struct device_attribute *attr, char *buf)
7038 struct iwl_priv *priv = dev_get_drvdata(d);
7039 struct iwl_spectrum_notification measure_report;
7040 u32 size = sizeof(measure_report), len = 0, ofs = 0;
7041 u8 *data = (u8 *)&measure_report;
7042 unsigned long flags;
7044 spin_lock_irqsave(&priv->lock, flags);
7045 if (!(priv->measurement_status & MEASUREMENT_READY)) {
7046 spin_unlock_irqrestore(&priv->lock, flags);
7049 memcpy(&measure_report, &priv->measure_report, size);
7050 priv->measurement_status = 0;
7051 spin_unlock_irqrestore(&priv->lock, flags);
7053 while (size && (PAGE_SIZE - len)) {
7054 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
7055 PAGE_SIZE - len, 1);
7057 if (PAGE_SIZE - len)
7061 size -= min(size, 16U);
7067 static ssize_t store_measurement(struct device *d,
7068 struct device_attribute *attr,
7069 const char *buf, size_t count)
7071 struct iwl_priv *priv = dev_get_drvdata(d);
7072 struct ieee80211_measurement_params params = {
7073 .channel = le16_to_cpu(priv->active39_rxon.channel),
7074 .start_time = cpu_to_le64(priv->last_tsf),
7075 .duration = cpu_to_le16(1),
7077 u8 type = IWL_MEASURE_BASIC;
7083 strncpy(buffer, buf, min(sizeof(buffer), count));
7084 channel = simple_strtoul(p, NULL, 0);
7086 params.channel = channel;
7089 while (*p && *p != ' ')
7092 type = simple_strtoul(p + 1, NULL, 0);
7095 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7096 "channel %d (for '%s')\n", type, params.channel, buf);
7097 iwl3945_get_measurement(priv, ¶ms, type);
7102 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
7103 show_measurement, store_measurement);
7104 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7106 static ssize_t store_retry_rate(struct device *d,
7107 struct device_attribute *attr,
7108 const char *buf, size_t count)
7110 struct iwl_priv *priv = dev_get_drvdata(d);
7112 priv->retry_rate = simple_strtoul(buf, NULL, 0);
7113 if (priv->retry_rate <= 0)
7114 priv->retry_rate = 1;
7119 static ssize_t show_retry_rate(struct device *d,
7120 struct device_attribute *attr, char *buf)
7122 struct iwl_priv *priv = dev_get_drvdata(d);
7123 return sprintf(buf, "%d", priv->retry_rate);
7126 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
7129 static ssize_t store_power_level(struct device *d,
7130 struct device_attribute *attr,
7131 const char *buf, size_t count)
7133 struct iwl_priv *priv = dev_get_drvdata(d);
7137 mode = simple_strtoul(buf, NULL, 0);
7138 mutex_lock(&priv->mutex);
7140 if (!iwl_is_ready(priv)) {
7145 if ((mode < 1) || (mode > IWL39_POWER_LIMIT) ||
7146 (mode == IWL39_POWER_AC))
7147 mode = IWL39_POWER_AC;
7149 mode |= IWL_POWER_ENABLED;
7151 if (mode != priv->power_mode) {
7152 rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode));
7154 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7157 priv->power_mode = mode;
7163 mutex_unlock(&priv->mutex);
7167 #define MAX_WX_STRING 80
7169 /* Values are in microsecond */
7170 static const s32 timeout_duration[] = {
7177 static const s32 period_duration[] = {
7185 static ssize_t show_power_level(struct device *d,
7186 struct device_attribute *attr, char *buf)
7188 struct iwl_priv *priv = dev_get_drvdata(d);
7189 int level = IWL_POWER_LEVEL(priv->power_mode);
7192 p += sprintf(p, "%d ", level);
7194 case IWL_POWER_MODE_CAM:
7195 case IWL39_POWER_AC:
7196 p += sprintf(p, "(AC)");
7198 case IWL39_POWER_BATTERY:
7199 p += sprintf(p, "(BATTERY)");
7203 "(Timeout %dms, Period %dms)",
7204 timeout_duration[level - 1] / 1000,
7205 period_duration[level - 1] / 1000);
7208 if (!(priv->power_mode & IWL_POWER_ENABLED))
7209 p += sprintf(p, " OFF\n");
7211 p += sprintf(p, " \n");
7217 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
7220 static ssize_t show_channels(struct device *d,
7221 struct device_attribute *attr, char *buf)
7223 /* all this shit doesn't belong into sysfs anyway */
7227 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
7229 static ssize_t show_statistics(struct device *d,
7230 struct device_attribute *attr, char *buf)
7232 struct iwl_priv *priv = dev_get_drvdata(d);
7233 u32 size = sizeof(struct iwl3945_notif_statistics);
7234 u32 len = 0, ofs = 0;
7235 u8 *data = (u8 *)&priv->statistics_39;
7238 if (!iwl_is_alive(priv))
7241 mutex_lock(&priv->mutex);
7242 rc = iwl3945_send_statistics_request(priv);
7243 mutex_unlock(&priv->mutex);
7247 "Error sending statistics request: 0x%08X\n", rc);
7251 while (size && (PAGE_SIZE - len)) {
7252 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
7253 PAGE_SIZE - len, 1);
7255 if (PAGE_SIZE - len)
7259 size -= min(size, 16U);
7265 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
7267 static ssize_t show_antenna(struct device *d,
7268 struct device_attribute *attr, char *buf)
7270 struct iwl_priv *priv = dev_get_drvdata(d);
7272 if (!iwl_is_alive(priv))
7275 return sprintf(buf, "%d\n", priv->antenna);
7278 static ssize_t store_antenna(struct device *d,
7279 struct device_attribute *attr,
7280 const char *buf, size_t count)
7283 struct iwl_priv *priv = dev_get_drvdata(d);
7288 if (sscanf(buf, "%1i", &ant) != 1) {
7289 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7293 if ((ant >= 0) && (ant <= 2)) {
7294 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
7295 priv->antenna = (enum iwl3945_antenna)ant;
7297 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
7303 static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
7305 static ssize_t show_status(struct device *d,
7306 struct device_attribute *attr, char *buf)
7308 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
7309 if (!iwl_is_alive(priv))
7311 return sprintf(buf, "0x%08x\n", (int)priv->status);
7314 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
7316 static ssize_t dump_error_log(struct device *d,
7317 struct device_attribute *attr,
7318 const char *buf, size_t count)
7320 char *p = (char *)buf;
7323 iwl3945_dump_nic_error_log((struct iwl_priv *)d->driver_data);
7325 return strnlen(buf, count);
7328 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
7330 static ssize_t dump_event_log(struct device *d,
7331 struct device_attribute *attr,
7332 const char *buf, size_t count)
7334 char *p = (char *)buf;
7337 iwl3945_dump_nic_event_log((struct iwl_priv *)d->driver_data);
7339 return strnlen(buf, count);
7342 static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
7344 /*****************************************************************************
7346 * driver setup and tear down
7348 *****************************************************************************/
7350 static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
7352 priv->workqueue = create_workqueue(DRV_NAME);
7354 init_waitqueue_head(&priv->wait_command_queue);
7356 INIT_WORK(&priv->up, iwl3945_bg_up);
7357 INIT_WORK(&priv->restart, iwl3945_bg_restart);
7358 INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
7359 INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed);
7360 INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
7361 INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan);
7362 INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill);
7363 INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
7364 INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
7365 INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
7366 INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check);
7368 iwl3945_hw_setup_deferred_work(priv);
7370 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
7371 iwl3945_irq_tasklet, (unsigned long)priv);
7374 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
7376 iwl3945_hw_cancel_deferred_work(priv);
7378 cancel_delayed_work_sync(&priv->init_alive_start);
7379 cancel_delayed_work(&priv->scan_check);
7380 cancel_delayed_work(&priv->alive_start);
7381 cancel_work_sync(&priv->beacon_update);
7384 static struct attribute *iwl3945_sysfs_entries[] = {
7385 &dev_attr_antenna.attr,
7386 &dev_attr_channels.attr,
7387 &dev_attr_dump_errors.attr,
7388 &dev_attr_dump_events.attr,
7389 &dev_attr_flags.attr,
7390 &dev_attr_filter_flags.attr,
7391 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7392 &dev_attr_measurement.attr,
7394 &dev_attr_power_level.attr,
7395 &dev_attr_retry_rate.attr,
7396 &dev_attr_statistics.attr,
7397 &dev_attr_status.attr,
7398 &dev_attr_temperature.attr,
7399 &dev_attr_tx_power.attr,
7400 #ifdef CONFIG_IWL3945_DEBUG
7401 &dev_attr_debug_level.attr,
7406 static struct attribute_group iwl3945_attribute_group = {
7407 .name = NULL, /* put in device directory */
7408 .attrs = iwl3945_sysfs_entries,
7411 static struct ieee80211_ops iwl3945_hw_ops = {
7412 .tx = iwl3945_mac_tx,
7413 .start = iwl3945_mac_start,
7414 .stop = iwl3945_mac_stop,
7415 .add_interface = iwl3945_mac_add_interface,
7416 .remove_interface = iwl3945_mac_remove_interface,
7417 .config = iwl3945_mac_config,
7418 .config_interface = iwl3945_mac_config_interface,
7419 .configure_filter = iwl3945_configure_filter,
7420 .set_key = iwl3945_mac_set_key,
7421 .get_tx_stats = iwl3945_mac_get_tx_stats,
7422 .conf_tx = iwl3945_mac_conf_tx,
7423 .reset_tsf = iwl3945_mac_reset_tsf,
7424 .bss_info_changed = iwl3945_bss_info_changed,
7425 .hw_scan = iwl3945_mac_hw_scan
7428 static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
7431 struct iwl_priv *priv;
7432 struct ieee80211_hw *hw;
7433 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
7434 unsigned long flags;
7436 /***********************
7437 * 1. Allocating HW data
7438 * ********************/
7440 /* mac80211 allocates memory for this device instance, including
7441 * space for this driver's private structure */
7442 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwl3945_hw_ops);
7444 printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
7449 SET_IEEE80211_DEV(hw, &pdev->dev);
7453 priv->pci_dev = pdev;
7456 if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
7457 (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
7459 "invalid queues_num, should be between %d and %d\n",
7460 IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
7465 /* Disabling hardware scan means that mac80211 will perform scans
7466 * "the hard way", rather than using device's scan. */
7467 if (iwl3945_mod_params.disable_hw_scan) {
7468 IWL_DEBUG_INFO("Disabling hw_scan\n");
7469 iwl3945_hw_ops.hw_scan = NULL;
7472 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7473 hw->rate_control_algorithm = "iwl-3945-rs";
7474 hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
7476 /* Select antenna (may be helpful if only one antenna is connected) */
7477 priv->antenna = (enum iwl3945_antenna)iwl3945_mod_params.antenna;
7478 #ifdef CONFIG_IWL3945_DEBUG
7479 priv->debug_level = iwl3945_mod_params.debug;
7480 atomic_set(&priv->restrict_refcnt, 0);
7483 /* Tell mac80211 our characteristics */
7484 hw->flags = IEEE80211_HW_SIGNAL_DBM |
7485 IEEE80211_HW_NOISE_DBM;
7487 hw->wiphy->interface_modes =
7488 BIT(NL80211_IFTYPE_STATION) |
7489 BIT(NL80211_IFTYPE_ADHOC);
7491 hw->wiphy->fw_handles_regulatory = true;
7493 /* 4 EDCA QOS priorities */
7496 /***************************
7497 * 2. Initializing PCI bus
7498 * *************************/
7499 if (pci_enable_device(pdev)) {
7501 goto out_ieee80211_free_hw;
7504 pci_set_master(pdev);
7506 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7508 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
7510 IWL_WARN(priv, "No suitable DMA available.\n");
7511 goto out_pci_disable_device;
7514 pci_set_drvdata(pdev, priv);
7515 err = pci_request_regions(pdev, DRV_NAME);
7517 goto out_pci_disable_device;
7519 /***********************
7520 * 3. Read REV Register
7521 * ********************/
7522 priv->hw_base = pci_iomap(pdev, 0, 0);
7523 if (!priv->hw_base) {
7525 goto out_pci_release_regions;
7528 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7529 (unsigned long long) pci_resource_len(pdev, 0));
7530 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
7532 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7533 * PCI Tx retries from interfering with C3 CPU state */
7534 pci_write_config_byte(pdev, 0x41, 0x00);
7537 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
7538 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
7540 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
7541 err = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
7542 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
7544 IWL_DEBUG_INFO("Failed to init the card\n");
7545 goto out_remove_sysfs;
7548 /***********************
7550 * ********************/
7551 /* Read the EEPROM */
7552 err = iwl3945_eeprom_init(priv);
7554 IWL_ERR(priv, "Unable to init EEPROM\n");
7555 goto out_remove_sysfs;
7557 /* MAC Address location in EEPROM same for 3945/4965 */
7558 get_eeprom_mac(priv, priv->mac_addr);
7559 IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr);
7560 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
7562 /***********************
7563 * 5. Setup HW Constants
7564 * ********************/
7565 /* Device-specific setup */
7566 if (iwl3945_hw_set_hw_params(priv)) {
7567 IWL_ERR(priv, "failed to set hw settings\n");
7571 /***********************
7573 * ********************/
7574 priv->retry_rate = 1;
7575 priv->ibss_beacon = NULL;
7577 spin_lock_init(&priv->lock);
7578 spin_lock_init(&priv->power_data_39.lock);
7579 spin_lock_init(&priv->sta_lock);
7580 spin_lock_init(&priv->hcmd_lock);
7582 INIT_LIST_HEAD(&priv->free_frames);
7583 mutex_init(&priv->mutex);
7585 /* Clear the driver's (not device's) station table */
7586 iwl3945_clear_stations_table(priv);
7588 priv->data_retry_limit = -1;
7589 priv->ieee_channels = NULL;
7590 priv->ieee_rates = NULL;
7591 priv->band = IEEE80211_BAND_2GHZ;
7593 priv->iw_mode = NL80211_IFTYPE_STATION;
7595 iwl_reset_qos(priv);
7597 priv->qos_data.qos_active = 0;
7598 priv->qos_data.qos_cap.val = 0;
7601 priv->rates_mask = IWL_RATES_MASK;
7602 /* If power management is turned on, default to AC mode */
7603 priv->power_mode = IWL39_POWER_AC;
7604 priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
7606 err = iwl3945_init_channel_map(priv);
7608 IWL_ERR(priv, "initializing regulatory failed: %d\n", err);
7609 goto out_release_irq;
7612 err = iwl3945_init_geos(priv);
7614 IWL_ERR(priv, "initializing geos failed: %d\n", err);
7615 goto out_free_channel_map;
7618 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
7621 /***********************************
7622 * 7. Initialize Module Parameters
7623 * **********************************/
7625 /* Initialize module parameter values here */
7626 /* Disable radio (SW RF KILL) via parameter when loading driver */
7627 if (iwl3945_mod_params.disable) {
7628 set_bit(STATUS_RF_KILL_SW, &priv->status);
7629 IWL_DEBUG_INFO("Radio disabled.\n");
7633 /***********************
7635 * ********************/
7637 spin_lock_irqsave(&priv->lock, flags);
7638 iwl3945_disable_interrupts(priv);
7639 spin_unlock_irqrestore(&priv->lock, flags);
7641 err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7643 IWL_ERR(priv, "failed to create sysfs device attributes\n");
7647 iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
7648 iwl3945_setup_deferred_work(priv);
7649 iwl3945_setup_rx_handlers(priv);
7651 /***********************
7653 * ********************/
7654 pci_save_state(pdev);
7655 pci_disable_device(pdev);
7657 /*********************************
7658 * 10. Setup and Register mac80211
7659 * *******************************/
7661 err = ieee80211_register_hw(priv->hw);
7663 IWL_ERR(priv, "Failed to register network device: %d\n", err);
7664 goto out_remove_sysfs;
7667 priv->hw->conf.beacon_int = 100;
7668 priv->mac80211_registered = 1;
7671 err = iwl3945_rfkill_init(priv);
7673 IWL_ERR(priv, "Unable to initialize RFKILL system. "
7674 "Ignoring error: %d\n", err);
7679 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7681 iwl3945_free_geos(priv);
7682 out_free_channel_map:
7683 iwl3945_free_channel_map(priv);
7687 destroy_workqueue(priv->workqueue);
7688 priv->workqueue = NULL;
7689 iwl3945_unset_hw_params(priv);
7692 pci_iounmap(pdev, priv->hw_base);
7693 out_pci_release_regions:
7694 pci_release_regions(pdev);
7695 out_pci_disable_device:
7696 pci_disable_device(pdev);
7697 pci_set_drvdata(pdev, NULL);
7698 out_ieee80211_free_hw:
7699 ieee80211_free_hw(priv->hw);
7704 static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
7706 struct iwl_priv *priv = pci_get_drvdata(pdev);
7707 unsigned long flags;
7712 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7714 set_bit(STATUS_EXIT_PENDING, &priv->status);
7718 /* make sure we flush any pending irq or
7719 * tasklet for the driver
7721 spin_lock_irqsave(&priv->lock, flags);
7722 iwl3945_disable_interrupts(priv);
7723 spin_unlock_irqrestore(&priv->lock, flags);
7725 iwl_synchronize_irq(priv);
7727 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7729 iwl3945_rfkill_unregister(priv);
7730 iwl3945_dealloc_ucode_pci(priv);
7733 iwl3945_rx_queue_free(priv, &priv->rxq);
7734 iwl3945_hw_txq_ctx_free(priv);
7736 iwl3945_unset_hw_params(priv);
7737 iwl3945_clear_stations_table(priv);
7739 if (priv->mac80211_registered)
7740 ieee80211_unregister_hw(priv->hw);
7742 /*netif_stop_queue(dev); */
7743 flush_workqueue(priv->workqueue);
7745 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
7746 * priv->workqueue... so we can't take down the workqueue
7748 destroy_workqueue(priv->workqueue);
7749 priv->workqueue = NULL;
7751 pci_iounmap(pdev, priv->hw_base);
7752 pci_release_regions(pdev);
7753 pci_disable_device(pdev);
7754 pci_set_drvdata(pdev, NULL);
7756 iwl3945_free_channel_map(priv);
7757 iwl3945_free_geos(priv);
7758 kfree(priv->scan39);
7759 if (priv->ibss_beacon)
7760 dev_kfree_skb(priv->ibss_beacon);
7762 ieee80211_free_hw(priv->hw);
7767 static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state)
7769 struct iwl_priv *priv = pci_get_drvdata(pdev);
7771 if (priv->is_open) {
7772 set_bit(STATUS_IN_SUSPEND, &priv->status);
7773 iwl3945_mac_stop(priv->hw);
7777 pci_set_power_state(pdev, PCI_D3hot);
7782 static int iwl3945_pci_resume(struct pci_dev *pdev)
7784 struct iwl_priv *priv = pci_get_drvdata(pdev);
7786 pci_set_power_state(pdev, PCI_D0);
7789 iwl3945_mac_start(priv->hw);
7791 clear_bit(STATUS_IN_SUSPEND, &priv->status);
7795 #endif /* CONFIG_PM */
7797 /*************** RFKILL FUNCTIONS **********/
7798 #ifdef CONFIG_IWL3945_RFKILL
7799 /* software rf-kill from user */
7800 static int iwl3945_rfkill_soft_rf_kill(void *data, enum rfkill_state state)
7802 struct iwl_priv *priv = data;
7808 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
7811 IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state);
7812 mutex_lock(&priv->mutex);
7815 case RFKILL_STATE_UNBLOCKED:
7816 if (iwl_is_rfkill_hw(priv)) {
7820 iwl3945_radio_kill_sw(priv, 0);
7822 case RFKILL_STATE_SOFT_BLOCKED:
7823 iwl3945_radio_kill_sw(priv, 1);
7826 IWL_WARN(priv, "received unexpected RFKILL state %d\n", state);
7830 mutex_unlock(&priv->mutex);
7835 int iwl3945_rfkill_init(struct iwl_priv *priv)
7837 struct device *device = wiphy_dev(priv->hw->wiphy);
7840 BUG_ON(device == NULL);
7842 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
7843 priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
7844 if (!priv->rfkill) {
7845 IWL_ERR(priv, "Unable to allocate rfkill device.\n");
7850 priv->rfkill->name = priv->cfg->name;
7851 priv->rfkill->data = priv;
7852 priv->rfkill->state = RFKILL_STATE_UNBLOCKED;
7853 priv->rfkill->toggle_radio = iwl3945_rfkill_soft_rf_kill;
7854 priv->rfkill->user_claim_unsupported = 1;
7856 priv->rfkill->dev.class->suspend = NULL;
7857 priv->rfkill->dev.class->resume = NULL;
7859 ret = rfkill_register(priv->rfkill);
7861 IWL_ERR(priv, "Unable to register rfkill: %d\n", ret);
7865 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7869 if (priv->rfkill != NULL)
7870 rfkill_free(priv->rfkill);
7871 priv->rfkill = NULL;
7874 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7878 void iwl3945_rfkill_unregister(struct iwl_priv *priv)
7881 rfkill_unregister(priv->rfkill);
7883 priv->rfkill = NULL;
7886 /* set rf-kill to the right state. */
7887 void iwl3945_rfkill_set_hw_state(struct iwl_priv *priv)
7893 if (iwl_is_rfkill_hw(priv)) {
7894 rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED);
7898 if (!iwl_is_rfkill_sw(priv))
7899 rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED);
7901 rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED);
7905 /*****************************************************************************
7907 * driver and module entry point
7909 *****************************************************************************/
7911 static struct pci_driver iwl3945_driver = {
7913 .id_table = iwl3945_hw_card_ids,
7914 .probe = iwl3945_pci_probe,
7915 .remove = __devexit_p(iwl3945_pci_remove),
7917 .suspend = iwl3945_pci_suspend,
7918 .resume = iwl3945_pci_resume,
7922 static int __init iwl3945_init(void)
7926 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
7927 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
7929 ret = iwl3945_rate_control_register();
7931 printk(KERN_ERR DRV_NAME
7932 "Unable to register rate control algorithm: %d\n", ret);
7936 ret = pci_register_driver(&iwl3945_driver);
7938 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
7939 goto error_register;
7945 iwl3945_rate_control_unregister();
7949 static void __exit iwl3945_exit(void)
7951 pci_unregister_driver(&iwl3945_driver);
7952 iwl3945_rate_control_unregister();
7955 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
7957 module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
7958 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
7959 module_param_named(disable, iwl3945_mod_params.disable, int, 0444);
7960 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
7961 module_param_named(hwcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
7962 MODULE_PARM_DESC(hwcrypto,
7963 "using hardware crypto engine (default 0 [software])\n");
7964 module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
7965 MODULE_PARM_DESC(debug, "debug output mask");
7966 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
7967 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
7969 module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444);
7970 MODULE_PARM_DESC(queues_num, "number of hw queues.");
7972 module_exit(iwl3945_exit);
7973 module_init(iwl3945_init);