1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/ieee80211_radiotap.h>
44 #include <net/lib80211.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwl3945"
52 #include "iwl-3945-fh.h"
53 #include "iwl-commands.h"
55 #include "iwl-helpers.h"
60 * module name, copyright, version, etc.
63 #define DRV_DESCRIPTION \
64 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
66 #ifdef CONFIG_IWL3945_DEBUG
72 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
78 #define IWL39_VERSION "1.2.26k" VD VS
79 #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
80 #define DRV_AUTHOR "<ilw@linux.intel.com>"
81 #define DRV_VERSION IWL39_VERSION
84 MODULE_DESCRIPTION(DRV_DESCRIPTION);
85 MODULE_VERSION(DRV_VERSION);
86 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
87 MODULE_LICENSE("GPL");
89 /* module parameters */
90 struct iwl_mod_params iwl3945_mod_params = {
91 .num_of_queues = IWL39_MAX_NUM_QUEUES,
93 /* the rest are 0 by default */
96 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
101 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
102 * of buffer descriptors, each of which points to one or more data buffers for
103 * the device to read from or fill. Driver and device exchange status of each
104 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
105 * entries in each circular buffer, to protect against confusing empty and full
108 * The device reads or writes the data in the queues via the device's several
109 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
111 * For Tx queue, there are low mark and high mark limits. If, after queuing
112 * the packet for Tx, free space become < low mark, Tx queue stopped. When
113 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
116 * The 3945 operates with six queues: One receive queue, one transmit queue
117 * (#4) for sending commands to the device firmware, and four transmit queues
118 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
119 ***************************************************/
122 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
124 static int iwl3945_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
125 int count, int slots_num, u32 id)
128 q->n_window = slots_num;
131 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
132 * and iwl_queue_dec_wrap are broken. */
133 BUG_ON(!is_power_of_2(count));
135 /* slots_num must be power-of-two size, otherwise
136 * get_cmd_index is broken. */
137 BUG_ON(!is_power_of_2(slots_num));
139 q->low_mark = q->n_window / 4;
143 q->high_mark = q->n_window / 8;
144 if (q->high_mark < 2)
147 q->write_ptr = q->read_ptr = 0;
153 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
155 static int iwl3945_tx_queue_alloc(struct iwl_priv *priv,
156 struct iwl_tx_queue *txq, u32 id)
158 struct pci_dev *dev = priv->pci_dev;
160 /* Driver private data, only for Tx (not command) queues,
161 * not shared with device. */
162 if (id != IWL_CMD_QUEUE_NUM) {
163 txq->txb = kmalloc(sizeof(txq->txb[0]) *
164 TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
166 IWL_ERR(priv, "kmalloc for auxiliary BD "
167 "structures failed\n");
173 /* Circular buffer of transmit frame descriptors (TFDs),
174 * shared with device */
175 txq->tfds39 = pci_alloc_consistent(dev,
176 sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX,
180 IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n",
181 sizeof(txq->tfds39[0]) * TFD_QUEUE_SIZE_MAX);
196 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
198 int iwl3945_tx_queue_init(struct iwl_priv *priv,
199 struct iwl_tx_queue *txq, int slots_num, u32 txq_id)
205 * Alloc buffer array for commands (Tx or other types of commands).
206 * For the command queue (#4), allocate command space + one big
207 * command for scan, since scan command is very huge; the system will
208 * not have two scans at the same time, so only one is needed.
209 * For data Tx queues (all other queues), no super-size command
212 len = sizeof(struct iwl_cmd);
213 for (i = 0; i <= slots_num; i++) {
214 if (i == slots_num) {
215 if (txq_id == IWL_CMD_QUEUE_NUM)
216 len += IWL_MAX_SCAN_SIZE;
221 txq->cmd[i] = kmalloc(len, GFP_KERNEL);
226 /* Alloc driver data array and TFD circular buffer */
227 rc = iwl3945_tx_queue_alloc(priv, txq, txq_id);
231 txq->need_update = 0;
233 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
234 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
235 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
237 /* Initialize queue high/low-water, head/tail indexes */
238 iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
240 /* Tell device where to find queue, enable DMA channel. */
241 iwl3945_hw_tx_queue_init(priv, txq);
245 for (i = 0; i < slots_num; i++) {
250 if (txq_id == IWL_CMD_QUEUE_NUM) {
251 kfree(txq->cmd[slots_num]);
252 txq->cmd[slots_num] = NULL;
258 * iwl3945_tx_queue_free - Deallocate DMA queue.
259 * @txq: Transmit queue to deallocate.
261 * Empty queue by removing and destroying all BD's.
263 * 0-fill, but do not free "txq" descriptor structure.
265 void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
267 struct iwl_queue *q = &txq->q;
268 struct pci_dev *dev = priv->pci_dev;
274 /* first, empty all BD's */
275 for (; q->write_ptr != q->read_ptr;
276 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
277 priv->cfg->ops->lib->txq_free_tfd(priv, txq);
279 len = sizeof(struct iwl_cmd) * q->n_window;
280 if (q->id == IWL_CMD_QUEUE_NUM)
281 len += IWL_MAX_SCAN_SIZE;
283 /* De-alloc array of command/tx buffers */
284 for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
287 /* De-alloc circular buffer of TFDs */
289 pci_free_consistent(dev, sizeof(struct iwl3945_tfd) *
290 txq->q.n_bd, txq->tfds39, txq->q.dma_addr);
292 /* De-alloc array of per-TFD driver data */
296 /* 0-fill queue descriptor structure */
297 memset(txq, 0, sizeof(*txq));
300 /*************** STATION TABLE MANAGEMENT ****
301 * mac80211 should be examined to determine if sta_info is duplicating
302 * the functionality provided here
305 /**************************************************************/
306 #if 0 /* temporary disable till we add real remove station */
308 * iwl3945_remove_station - Remove driver's knowledge of station.
310 * NOTE: This does not remove station from device's station table.
312 static u8 iwl3945_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
314 int index = IWL_INVALID_STATION;
318 spin_lock_irqsave(&priv->sta_lock, flags);
322 else if (is_broadcast_ether_addr(addr))
323 index = priv->hw_params.bcast_sta_id;
325 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
326 if (priv->stations_39[i].used &&
327 !compare_ether_addr(priv->stations_39[i].sta.sta.addr,
333 if (unlikely(index == IWL_INVALID_STATION))
336 if (priv->stations_39[index].used) {
337 priv->stations_39[index].used = 0;
338 priv->num_stations--;
341 BUG_ON(priv->num_stations < 0);
344 spin_unlock_irqrestore(&priv->sta_lock, flags);
350 * iwl3945_clear_stations_table - Clear the driver's station table
352 * NOTE: This does not clear or otherwise alter the device's station table.
354 static void iwl3945_clear_stations_table(struct iwl_priv *priv)
358 spin_lock_irqsave(&priv->sta_lock, flags);
360 priv->num_stations = 0;
361 memset(priv->stations_39, 0, sizeof(priv->stations_39));
363 spin_unlock_irqrestore(&priv->sta_lock, flags);
367 * iwl3945_add_station - Add station to station tables in driver and device
369 u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags)
372 int index = IWL_INVALID_STATION;
373 struct iwl3945_station_entry *station;
374 unsigned long flags_spin;
377 spin_lock_irqsave(&priv->sta_lock, flags_spin);
380 else if (is_broadcast_ether_addr(addr))
381 index = priv->hw_params.bcast_sta_id;
383 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
384 if (!compare_ether_addr(priv->stations_39[i].sta.sta.addr,
390 if (!priv->stations_39[i].used &&
391 index == IWL_INVALID_STATION)
395 /* These two conditions has the same outcome but keep them separate
396 since they have different meaning */
397 if (unlikely(index == IWL_INVALID_STATION)) {
398 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
402 if (priv->stations_39[index].used &&
403 !compare_ether_addr(priv->stations_39[index].sta.sta.addr, addr)) {
404 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
408 IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index, addr);
409 station = &priv->stations_39[index];
411 priv->num_stations++;
413 /* Set up the REPLY_ADD_STA command to send to device */
414 memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd));
415 memcpy(station->sta.sta.addr, addr, ETH_ALEN);
416 station->sta.mode = 0;
417 station->sta.sta.sta_id = index;
418 station->sta.station_flags = 0;
420 if (priv->band == IEEE80211_BAND_5GHZ)
421 rate = IWL_RATE_6M_PLCP;
423 rate = IWL_RATE_1M_PLCP;
425 /* Turn on both antennas for the station... */
426 station->sta.rate_n_flags =
427 iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK);
429 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
431 /* Add station to device's station table */
432 iwl3945_send_add_station(priv, &station->sta, flags);
437 int iwl3945_send_statistics_request(struct iwl_priv *priv)
441 struct iwl_host_cmd cmd = {
442 .id = REPLY_STATISTICS_CMD,
447 return iwl_send_cmd_sync(priv, &cmd);
451 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
452 * @band: 2.4 or 5 GHz band
453 * @channel: Any channel valid for the requested band
455 * In addition to setting the staging RXON, priv->band is also set.
457 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
458 * in the staging RXON flag structure based on the band
460 static int iwl3945_set_rxon_channel(struct iwl_priv *priv,
461 enum ieee80211_band band,
464 if (!iwl3945_get_channel_info(priv, band, channel)) {
465 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
470 if ((le16_to_cpu(priv->staging39_rxon.channel) == channel) &&
471 (priv->band == band))
474 priv->staging39_rxon.channel = cpu_to_le16(channel);
475 if (band == IEEE80211_BAND_5GHZ)
476 priv->staging39_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
478 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
482 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band);
488 * iwl3945_check_rxon_cmd - validate RXON structure is valid
490 * NOTE: This is really only useful during development and can eventually
491 * be #ifdef'd out once the driver is stable and folks aren't actively
494 static int iwl3945_check_rxon_cmd(struct iwl_priv *priv)
498 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
500 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
501 error |= le32_to_cpu(rxon->flags &
502 (RXON_FLG_TGJ_NARROW_BAND_MSK |
503 RXON_FLG_RADAR_DETECT_MSK));
505 IWL_WARN(priv, "check 24G fields %d | %d\n",
508 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
509 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
511 IWL_WARN(priv, "check 52 fields %d | %d\n",
513 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
515 IWL_WARN(priv, "check 52 CCK %d | %d\n",
518 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
520 IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
522 /* make sure basic rates 6Mbps and 1Mbps are supported */
523 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
524 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
526 IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
528 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
530 IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
532 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
533 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
535 IWL_WARN(priv, "check CCK and short slot %d | %d\n",
538 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
539 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
541 IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
544 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
545 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
547 IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
550 if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
551 error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK |
552 RXON_FLG_ANT_A_MSK)) == 0);
554 IWL_WARN(priv, "check antenna %d %d\n", counter++, error);
557 IWL_WARN(priv, "Tuning to channel %d\n",
558 le16_to_cpu(rxon->channel));
561 IWL_ERR(priv, "Not a valid rxon_assoc_cmd field values\n");
568 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
569 * @priv: staging_rxon is compared to active_rxon
571 * If the RXON structure is changing enough to require a new tune,
572 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
573 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
575 static int iwl3945_full_rxon_required(struct iwl_priv *priv)
578 /* These items are only settable from the full RXON command */
579 if (!(iwl3945_is_associated(priv)) ||
580 compare_ether_addr(priv->staging39_rxon.bssid_addr,
581 priv->active39_rxon.bssid_addr) ||
582 compare_ether_addr(priv->staging39_rxon.node_addr,
583 priv->active39_rxon.node_addr) ||
584 compare_ether_addr(priv->staging39_rxon.wlap_bssid_addr,
585 priv->active39_rxon.wlap_bssid_addr) ||
586 (priv->staging39_rxon.dev_type != priv->active39_rxon.dev_type) ||
587 (priv->staging39_rxon.channel != priv->active39_rxon.channel) ||
588 (priv->staging39_rxon.air_propagation !=
589 priv->active39_rxon.air_propagation) ||
590 (priv->staging39_rxon.assoc_id != priv->active39_rxon.assoc_id))
593 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
594 * be updated with the RXON_ASSOC command -- however only some
595 * flag transitions are allowed using RXON_ASSOC */
597 /* Check if we are not switching bands */
598 if ((priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
599 (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK))
602 /* Check if we are switching association toggle */
603 if ((priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
604 (priv->active39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
610 static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
613 struct iwl_rx_packet *res = NULL;
614 struct iwl3945_rxon_assoc_cmd rxon_assoc;
615 struct iwl_host_cmd cmd = {
616 .id = REPLY_RXON_ASSOC,
617 .len = sizeof(rxon_assoc),
618 .meta.flags = CMD_WANT_SKB,
621 const struct iwl3945_rxon_cmd *rxon1 = &priv->staging39_rxon;
622 const struct iwl3945_rxon_cmd *rxon2 = &priv->active39_rxon;
624 if ((rxon1->flags == rxon2->flags) &&
625 (rxon1->filter_flags == rxon2->filter_flags) &&
626 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
627 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
628 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
632 rxon_assoc.flags = priv->staging39_rxon.flags;
633 rxon_assoc.filter_flags = priv->staging39_rxon.filter_flags;
634 rxon_assoc.ofdm_basic_rates = priv->staging39_rxon.ofdm_basic_rates;
635 rxon_assoc.cck_basic_rates = priv->staging39_rxon.cck_basic_rates;
636 rxon_assoc.reserved = 0;
638 rc = iwl_send_cmd_sync(priv, &cmd);
642 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
643 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
644 IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
648 priv->alloc_rxb_skb--;
649 dev_kfree_skb_any(cmd.meta.u.skb);
655 * iwl3945_commit_rxon - commit staging_rxon to hardware
657 * The RXON command in staging_rxon is committed to the hardware and
658 * the active_rxon structure is updated with the new data. This
659 * function correctly transitions out of the RXON_ASSOC_MSK state if
660 * a HW tune is required based on the RXON structure changes.
662 static int iwl3945_commit_rxon(struct iwl_priv *priv)
664 /* cast away the const for active_rxon in this function */
665 struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active39_rxon;
668 if (!iwl_is_alive(priv))
671 /* always get timestamp with Rx frame */
672 priv->staging39_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
675 priv->staging39_rxon.flags &=
676 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
677 priv->staging39_rxon.flags |= iwl3945_get_antenna_flags(priv);
679 rc = iwl3945_check_rxon_cmd(priv);
681 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
685 /* If we don't need to send a full RXON, we can use
686 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
687 * and other flags for the current radio configuration. */
688 if (!iwl3945_full_rxon_required(priv)) {
689 rc = iwl3945_send_rxon_assoc(priv);
691 IWL_ERR(priv, "Error setting RXON_ASSOC "
692 "configuration (%d).\n", rc);
696 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
701 /* If we are currently associated and the new config requires
702 * an RXON_ASSOC and the new config wants the associated mask enabled,
703 * we must clear the associated from the active configuration
704 * before we apply the new config */
705 if (iwl3945_is_associated(priv) &&
706 (priv->staging39_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
707 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
708 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
710 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
711 sizeof(struct iwl3945_rxon_cmd),
712 &priv->active39_rxon);
714 /* If the mask clearing failed then we set
715 * active_rxon back to what it was previously */
717 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
718 IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
719 "configuration (%d).\n", rc);
724 IWL_DEBUG_INFO("Sending RXON\n"
725 "* with%s RXON_FILTER_ASSOC_MSK\n"
728 ((priv->staging39_rxon.filter_flags &
729 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
730 le16_to_cpu(priv->staging39_rxon.channel),
731 priv->staging_rxon.bssid_addr);
733 /* Apply the new configuration */
734 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
735 sizeof(struct iwl3945_rxon_cmd), &priv->staging39_rxon);
737 IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
741 memcpy(active_rxon, &priv->staging39_rxon, sizeof(*active_rxon));
743 iwl3945_clear_stations_table(priv);
745 /* If we issue a new RXON command which required a tune then we must
746 * send a new TXPOWER command or we won't be able to Tx any frames */
747 rc = iwl3945_hw_reg_send_txpower(priv);
749 IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
753 /* Add the broadcast address so we can send broadcast frames */
754 if (iwl3945_add_station(priv, iwl_bcast_addr, 0, 0) ==
755 IWL_INVALID_STATION) {
756 IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
760 /* If we have set the ASSOC_MSK and we are in BSS mode then
761 * add the IWL_AP_ID to the station rate table */
762 if (iwl3945_is_associated(priv) &&
763 (priv->iw_mode == NL80211_IFTYPE_STATION))
764 if (iwl3945_add_station(priv, priv->active39_rxon.bssid_addr, 1, 0)
765 == IWL_INVALID_STATION) {
766 IWL_ERR(priv, "Error adding AP address for transmit\n");
770 /* Init the hardware's rate fallback order based on the band */
771 rc = iwl3945_init_hw_rate_table(priv);
773 IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
780 static int iwl3945_send_bt_config(struct iwl_priv *priv)
782 struct iwl_bt_cmd bt_cmd = {
790 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
791 sizeof(bt_cmd), &bt_cmd);
794 static int iwl3945_send_scan_abort(struct iwl_priv *priv)
797 struct iwl_rx_packet *res;
798 struct iwl_host_cmd cmd = {
799 .id = REPLY_SCAN_ABORT_CMD,
800 .meta.flags = CMD_WANT_SKB,
803 /* If there isn't a scan actively going on in the hardware
804 * then we are in between scan bands and not actually
805 * actively scanning, so don't send the abort command */
806 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
807 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
811 rc = iwl_send_cmd_sync(priv, &cmd);
813 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
817 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
818 if (res->u.status != CAN_ABORT_STATUS) {
819 /* The scan abort will return 1 for success or
820 * 2 for "failure". A failure condition can be
821 * due to simply not being in an active scan which
822 * can occur if we send the scan abort before we
823 * the microcode has notified us that a scan is
825 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
826 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
827 clear_bit(STATUS_SCAN_HW, &priv->status);
830 dev_kfree_skb_any(cmd.meta.u.skb);
835 static int iwl3945_add_sta_sync_callback(struct iwl_priv *priv,
836 struct iwl_cmd *cmd, struct sk_buff *skb)
838 struct iwl_rx_packet *res = NULL;
841 IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
845 res = (struct iwl_rx_packet *)skb->data;
846 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
847 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
852 switch (res->u.add_sta.status) {
853 case ADD_STA_SUCCESS_MSK:
859 /* We didn't cache the SKB; let the caller free it */
863 int iwl3945_send_add_station(struct iwl_priv *priv,
864 struct iwl3945_addsta_cmd *sta, u8 flags)
866 struct iwl_rx_packet *res = NULL;
868 struct iwl_host_cmd cmd = {
870 .len = sizeof(struct iwl3945_addsta_cmd),
875 if (flags & CMD_ASYNC)
876 cmd.meta.u.callback = iwl3945_add_sta_sync_callback;
878 cmd.meta.flags |= CMD_WANT_SKB;
880 rc = iwl_send_cmd(priv, &cmd);
882 if (rc || (flags & CMD_ASYNC))
885 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
886 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
887 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
893 switch (res->u.add_sta.status) {
894 case ADD_STA_SUCCESS_MSK:
895 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
899 IWL_WARN(priv, "REPLY_ADD_STA failed\n");
904 priv->alloc_rxb_skb--;
905 dev_kfree_skb_any(cmd.meta.u.skb);
910 static int iwl3945_update_sta_key_info(struct iwl_priv *priv,
911 struct ieee80211_key_conf *keyconf,
915 __le16 key_flags = 0;
917 switch (keyconf->alg) {
919 key_flags |= STA_KEY_FLG_CCMP;
920 key_flags |= cpu_to_le16(
921 keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
922 key_flags &= ~STA_KEY_FLG_INVALID;
929 spin_lock_irqsave(&priv->sta_lock, flags);
930 priv->stations_39[sta_id].keyinfo.alg = keyconf->alg;
931 priv->stations_39[sta_id].keyinfo.keylen = keyconf->keylen;
932 memcpy(priv->stations_39[sta_id].keyinfo.key, keyconf->key,
935 memcpy(priv->stations_39[sta_id].sta.key.key, keyconf->key,
937 priv->stations_39[sta_id].sta.key.key_flags = key_flags;
938 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
939 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
941 spin_unlock_irqrestore(&priv->sta_lock, flags);
943 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
944 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
948 static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
952 spin_lock_irqsave(&priv->sta_lock, flags);
953 memset(&priv->stations_39[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key));
954 memset(&priv->stations_39[sta_id].sta.key, 0,
955 sizeof(struct iwl4965_keyinfo));
956 priv->stations_39[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
957 priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
958 priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
959 spin_unlock_irqrestore(&priv->sta_lock, flags);
961 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
962 iwl3945_send_add_station(priv, &priv->stations_39[sta_id].sta, 0);
966 static void iwl3945_clear_free_frames(struct iwl_priv *priv)
968 struct list_head *element;
970 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
973 while (!list_empty(&priv->free_frames)) {
974 element = priv->free_frames.next;
976 kfree(list_entry(element, struct iwl3945_frame, list));
977 priv->frames_count--;
980 if (priv->frames_count) {
981 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
983 priv->frames_count = 0;
987 static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
989 struct iwl3945_frame *frame;
990 struct list_head *element;
991 if (list_empty(&priv->free_frames)) {
992 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
994 IWL_ERR(priv, "Could not allocate frame!\n");
998 priv->frames_count++;
1002 element = priv->free_frames.next;
1004 return list_entry(element, struct iwl3945_frame, list);
1007 static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
1009 memset(frame, 0, sizeof(*frame));
1010 list_add(&frame->list, &priv->free_frames);
1013 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
1014 struct ieee80211_hdr *hdr,
1018 if (!iwl3945_is_associated(priv) || !priv->ibss_beacon ||
1019 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
1020 (priv->iw_mode != NL80211_IFTYPE_AP)))
1023 if (priv->ibss_beacon->len > left)
1026 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
1028 return priv->ibss_beacon->len;
1031 static u8 iwl3945_rate_get_lowest_plcp(struct iwl_priv *priv)
1037 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1038 rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
1040 rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
1042 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
1043 i = iwl3945_rates[i].next_ieee) {
1044 if (rate_mask & (1 << i))
1045 return iwl3945_rates[i].plcp;
1048 /* No valid rate was found. Assign the lowest one */
1049 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK)
1050 return IWL_RATE_1M_PLCP;
1052 return IWL_RATE_6M_PLCP;
1055 static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
1057 struct iwl3945_frame *frame;
1058 unsigned int frame_size;
1062 frame = iwl3945_get_free_frame(priv);
1065 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
1070 rate = iwl3945_rate_get_lowest_plcp(priv);
1072 frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
1074 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
1077 iwl3945_free_frame(priv, frame);
1082 /******************************************************************************
1084 * EEPROM related functions
1086 ******************************************************************************/
1088 static void get_eeprom_mac(struct iwl_priv *priv, u8 *mac)
1090 memcpy(mac, priv->eeprom39.mac_address, 6);
1094 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1095 * embedded controller) as EEPROM reader; each read is a series of pulses
1096 * to/from the EEPROM chip, not a single event, so even reads could conflict
1097 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1098 * simply claims ownership, which should be safe when this function is called
1099 * (i.e. before loading uCode!).
1101 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
1103 _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
1108 * iwl3945_eeprom_init - read EEPROM contents
1110 * Load the EEPROM contents from adapter into priv->eeprom39
1112 * NOTE: This routine uses the non-debug IO access functions.
1114 int iwl3945_eeprom_init(struct iwl_priv *priv)
1116 u16 *e = (u16 *)&priv->eeprom39;
1117 u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
1118 int sz = sizeof(priv->eeprom39);
1122 /* The EEPROM structure has several padding buffers within it
1123 * and when adding new EEPROM maps is subject to programmer errors
1124 * which may be very difficult to identify without explicitly
1125 * checking the resulting size of the eeprom map. */
1126 BUILD_BUG_ON(sizeof(priv->eeprom39) != IWL_EEPROM_IMAGE_SIZE);
1128 if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
1129 IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
1133 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1134 ret = iwl3945_eeprom_acquire_semaphore(priv);
1136 IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
1140 /* eeprom is an array of 16bit values */
1141 for (addr = 0; addr < sz; addr += sizeof(u16)) {
1144 _iwl_write32(priv, CSR_EEPROM_REG,
1145 CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
1146 _iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
1147 ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
1148 CSR_EEPROM_REG_READ_VALID_MSK,
1149 IWL_EEPROM_ACCESS_TIMEOUT);
1151 IWL_ERR(priv, "Time out reading EEPROM[%d]\n", addr);
1155 r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
1156 e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
1162 static void iwl3945_unset_hw_params(struct iwl_priv *priv)
1164 if (priv->shared_virt)
1165 pci_free_consistent(priv->pci_dev,
1166 sizeof(struct iwl3945_shared),
1172 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1174 * return : set the bit for each supported rate insert in ie
1176 static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate,
1177 u16 basic_rate, int *left)
1179 u16 ret_rates = 0, bit;
1184 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
1185 if (bit & supported_rate) {
1187 rates[*cnt] = iwl3945_rates[i].ieee |
1188 ((bit & basic_rate) ? 0x80 : 0x00);
1192 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
1201 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1203 static u16 iwl3945_fill_probe_req(struct iwl_priv *priv,
1204 struct ieee80211_mgmt *frame,
1209 u16 active_rates, ret_rates, cck_rates;
1211 /* Make sure there is enough space for the probe request,
1212 * two mandatory IEs and the data */
1218 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
1219 memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
1220 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
1221 memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
1222 frame->seq_ctrl = 0;
1224 /* fill in our indirect SSID IE */
1231 pos = &(frame->u.probe_req.variable[0]);
1232 *pos++ = WLAN_EID_SSID;
1235 /* fill in supported rate */
1241 /* ... fill it in... */
1242 *pos++ = WLAN_EID_SUPP_RATES;
1245 priv->active_rate = priv->rates_mask;
1246 active_rates = priv->active_rate;
1247 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
1249 cck_rates = IWL_CCK_RATES_MASK & active_rates;
1250 ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates,
1251 priv->active_rate_basic, &left);
1252 active_rates &= ~ret_rates;
1254 ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates,
1255 priv->active_rate_basic, &left);
1256 active_rates &= ~ret_rates;
1260 if (active_rates == 0)
1263 /* fill in supported extended rate */
1268 /* ... fill it in... */
1269 *pos++ = WLAN_EID_EXT_SUPP_RATES;
1271 iwl3945_supported_rate_to_ie(pos, active_rates,
1272 priv->active_rate_basic, &left);
1283 static int iwl3945_send_qos_params_command(struct iwl_priv *priv,
1284 struct iwl_qosparam_cmd *qos)
1287 return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM,
1288 sizeof(struct iwl_qosparam_cmd), qos);
1291 static void iwl3945_activate_qos(struct iwl_priv *priv, u8 force)
1293 unsigned long flags;
1295 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1298 spin_lock_irqsave(&priv->lock, flags);
1299 priv->qos_data.def_qos_parm.qos_flags = 0;
1301 if (priv->qos_data.qos_cap.q_AP.queue_request &&
1302 !priv->qos_data.qos_cap.q_AP.txop_request)
1303 priv->qos_data.def_qos_parm.qos_flags |=
1304 QOS_PARAM_FLG_TXOP_TYPE_MSK;
1306 if (priv->qos_data.qos_active)
1307 priv->qos_data.def_qos_parm.qos_flags |=
1308 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
1310 spin_unlock_irqrestore(&priv->lock, flags);
1312 if (force || iwl3945_is_associated(priv)) {
1313 IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n",
1314 priv->qos_data.qos_active);
1316 iwl3945_send_qos_params_command(priv,
1317 &(priv->qos_data.def_qos_parm));
1322 * Power management (not Tx power!) functions
1324 #define MSEC_TO_USEC 1024
1327 /* default power management (not Tx power) table values */
1329 static struct iwl_power_vec_entry range_0[IWL_POWER_MAX] = {
1330 {{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1331 {{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1332 {{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1333 {{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1334 {{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1335 {{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1339 static struct iwl_power_vec_entry range_1[IWL_POWER_MAX] = {
1340 {{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1341 {{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1342 {{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1343 {{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1344 {{SLP, SLP_TOUT(50), SLP_TOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1345 {{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1348 int iwl3945_power_init_handle(struct iwl_priv *priv)
1351 struct iwl_power_mgr *pow_data;
1352 int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_MAX;
1355 IWL_DEBUG_POWER("Initialize power \n");
1357 pow_data = &priv->power_data;
1359 memset(pow_data, 0, sizeof(*pow_data));
1361 pow_data->dtim_period = 1;
1363 memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
1364 memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
1366 rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
1370 struct iwl_powertable_cmd *cmd;
1372 IWL_DEBUG_POWER("adjust power command flags\n");
1374 for (i = 0; i < IWL_POWER_MAX; i++) {
1375 cmd = &pow_data->pwr_range_0[i].cmd;
1378 cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
1380 cmd->flags |= IWL_POWER_PCI_PM_MSK;
1386 static int iwl3945_update_power_cmd(struct iwl_priv *priv,
1387 struct iwl_powertable_cmd *cmd, u32 mode)
1389 struct iwl_power_mgr *pow_data;
1390 struct iwl_power_vec_entry *range;
1396 if (mode > IWL_POWER_INDEX_5) {
1397 IWL_DEBUG_POWER("Error invalid power mode \n");
1400 pow_data = &priv->power_data;
1402 if (pow_data->dtim_period < 10)
1403 range = &pow_data->pwr_range_0[0];
1405 range = &pow_data->pwr_range_1[1];
1407 memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd));
1414 skip = !!range[mode].no_dtim;
1418 __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
1419 max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
1420 cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
1423 cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
1426 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
1427 if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
1428 cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
1430 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
1431 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
1432 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
1433 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1434 le32_to_cpu(cmd->sleep_interval[0]),
1435 le32_to_cpu(cmd->sleep_interval[1]),
1436 le32_to_cpu(cmd->sleep_interval[2]),
1437 le32_to_cpu(cmd->sleep_interval[3]),
1438 le32_to_cpu(cmd->sleep_interval[4]));
1443 static int iwl3945_send_power_mode(struct iwl_priv *priv, u32 mode)
1445 u32 uninitialized_var(final_mode);
1447 struct iwl_powertable_cmd cmd;
1449 /* If on battery, set to 3,
1450 * if plugged into AC power, set to CAM ("continuously aware mode"),
1451 * else user level */
1453 case IWL39_POWER_BATTERY:
1454 final_mode = IWL_POWER_INDEX_3;
1456 case IWL39_POWER_AC:
1457 final_mode = IWL_POWER_MODE_CAM;
1464 iwl3945_update_power_cmd(priv, &cmd, final_mode);
1466 /* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
1467 rc = iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
1468 sizeof(struct iwl3945_powertable_cmd), &cmd);
1470 if (final_mode == IWL_POWER_MODE_CAM)
1471 clear_bit(STATUS_POWER_PMI, &priv->status);
1473 set_bit(STATUS_POWER_PMI, &priv->status);
1478 #define MAX_UCODE_BEACON_INTERVAL 1024
1479 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1481 static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
1484 u16 beacon_factor = 0;
1487 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
1488 / MAX_UCODE_BEACON_INTERVAL;
1489 new_val = beacon_val / beacon_factor;
1491 return cpu_to_le16(new_val);
1494 static void iwl3945_setup_rxon_timing(struct iwl_priv *priv)
1496 u64 interval_tm_unit;
1498 unsigned long flags;
1499 struct ieee80211_conf *conf = NULL;
1502 conf = ieee80211_get_hw_conf(priv->hw);
1504 spin_lock_irqsave(&priv->lock, flags);
1505 priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
1506 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
1508 tsf = priv->timestamp;
1510 beacon_int = priv->beacon_int;
1511 spin_unlock_irqrestore(&priv->lock, flags);
1513 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
1514 if (beacon_int == 0) {
1515 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
1516 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
1518 priv->rxon_timing.beacon_interval =
1519 cpu_to_le16(beacon_int);
1520 priv->rxon_timing.beacon_interval =
1521 iwl3945_adjust_beacon_interval(
1522 le16_to_cpu(priv->rxon_timing.beacon_interval));
1525 priv->rxon_timing.atim_window = 0;
1527 priv->rxon_timing.beacon_interval =
1528 iwl3945_adjust_beacon_interval(conf->beacon_int);
1529 /* TODO: we need to get atim_window from upper stack
1530 * for now we set to 0 */
1531 priv->rxon_timing.atim_window = 0;
1535 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
1536 result = do_div(tsf, interval_tm_unit);
1537 priv->rxon_timing.beacon_init_val =
1538 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
1541 ("beacon interval %d beacon timer %d beacon tim %d\n",
1542 le16_to_cpu(priv->rxon_timing.beacon_interval),
1543 le32_to_cpu(priv->rxon_timing.beacon_init_val),
1544 le16_to_cpu(priv->rxon_timing.atim_window));
1547 static int iwl3945_scan_initiate(struct iwl_priv *priv)
1549 if (!iwl_is_ready_rf(priv)) {
1550 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1554 if (test_bit(STATUS_SCANNING, &priv->status)) {
1555 IWL_DEBUG_SCAN("Scan already in progress.\n");
1559 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1560 IWL_DEBUG_SCAN("Scan request while abort pending. "
1565 IWL_DEBUG_INFO("Starting scan...\n");
1566 if (priv->cfg->sku & IWL_SKU_G)
1567 priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ);
1568 if (priv->cfg->sku & IWL_SKU_A)
1569 priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ);
1570 set_bit(STATUS_SCANNING, &priv->status);
1571 priv->scan_start = jiffies;
1572 priv->scan_pass_start = priv->scan_start;
1574 queue_work(priv->workqueue, &priv->request_scan);
1579 static int iwl3945_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
1581 struct iwl3945_rxon_cmd *rxon = &priv->staging39_rxon;
1584 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
1586 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
1591 static void iwl3945_set_flags_for_phymode(struct iwl_priv *priv,
1592 enum ieee80211_band band)
1594 if (band == IEEE80211_BAND_5GHZ) {
1595 priv->staging39_rxon.flags &=
1596 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1597 | RXON_FLG_CCK_MSK);
1598 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1600 /* Copied from iwl3945_bg_post_associate() */
1601 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1602 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1604 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1606 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1607 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1609 priv->staging39_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1610 priv->staging39_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1611 priv->staging39_rxon.flags &= ~RXON_FLG_CCK_MSK;
1616 * initialize rxon structure with default values from eeprom
1618 static void iwl3945_connection_init_rx_config(struct iwl_priv *priv,
1621 const struct iwl_channel_info *ch_info;
1623 memset(&priv->staging39_rxon, 0, sizeof(priv->staging39_rxon));
1626 case NL80211_IFTYPE_AP:
1627 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_AP;
1630 case NL80211_IFTYPE_STATION:
1631 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_ESS;
1632 priv->staging39_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1635 case NL80211_IFTYPE_ADHOC:
1636 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1637 priv->staging39_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1638 priv->staging39_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1639 RXON_FILTER_ACCEPT_GRP_MSK;
1642 case NL80211_IFTYPE_MONITOR:
1643 priv->staging39_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
1644 priv->staging39_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
1645 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
1648 IWL_ERR(priv, "Unsupported interface type %d\n", mode);
1653 /* TODO: Figure out when short_preamble would be set and cache from
1655 if (!hw_to_local(priv->hw)->short_preamble)
1656 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1658 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1661 ch_info = iwl3945_get_channel_info(priv, priv->band,
1662 le16_to_cpu(priv->active39_rxon.channel));
1665 ch_info = &priv->channel_info[0];
1668 * in some case A channels are all non IBSS
1669 * in this case force B/G channel
1671 if ((mode == NL80211_IFTYPE_ADHOC) && !(is_channel_ibss(ch_info)))
1672 ch_info = &priv->channel_info[0];
1674 priv->staging39_rxon.channel = cpu_to_le16(ch_info->channel);
1675 if (is_channel_a_band(ch_info))
1676 priv->band = IEEE80211_BAND_5GHZ;
1678 priv->band = IEEE80211_BAND_2GHZ;
1680 iwl3945_set_flags_for_phymode(priv, priv->band);
1682 priv->staging39_rxon.ofdm_basic_rates =
1683 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1684 priv->staging39_rxon.cck_basic_rates =
1685 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1688 static int iwl3945_set_mode(struct iwl_priv *priv, int mode)
1690 if (mode == NL80211_IFTYPE_ADHOC) {
1691 const struct iwl_channel_info *ch_info;
1693 ch_info = iwl3945_get_channel_info(priv,
1695 le16_to_cpu(priv->staging39_rxon.channel));
1697 if (!ch_info || !is_channel_ibss(ch_info)) {
1698 IWL_ERR(priv, "channel %d not IBSS channel\n",
1699 le16_to_cpu(priv->staging39_rxon.channel));
1704 iwl3945_connection_init_rx_config(priv, mode);
1705 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1707 iwl3945_clear_stations_table(priv);
1709 /* don't commit rxon if rf-kill is on*/
1710 if (!iwl_is_ready_rf(priv))
1713 cancel_delayed_work(&priv->scan_check);
1714 if (iwl_scan_cancel_timeout(priv, 100)) {
1715 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
1716 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1720 iwl3945_commit_rxon(priv);
1725 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
1726 struct ieee80211_tx_info *info,
1727 struct iwl_cmd *cmd,
1728 struct sk_buff *skb_frag,
1731 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
1732 struct iwl3945_hw_key *keyinfo =
1733 &priv->stations_39[info->control.hw_key->hw_key_idx].keyinfo;
1735 switch (keyinfo->alg) {
1737 tx->sec_ctl = TX_CMD_SEC_CCM;
1738 memcpy(tx->key, keyinfo->key, keyinfo->keylen);
1739 IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
1744 tx->sec_ctl = TX_CMD_SEC_TKIP;
1747 memcpy(tx->tkip_mic.byte, skb_frag->tail - 8,
1750 memset(tx->tkip_mic.byte, 0, 8);
1755 tx->sec_ctl = TX_CMD_SEC_WEP |
1756 (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
1758 if (keyinfo->keylen == 13)
1759 tx->sec_ctl |= TX_CMD_SEC_KEY128;
1761 memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen);
1763 IWL_DEBUG_TX("Configuring packet for WEP encryption "
1764 "with key %d\n", info->control.hw_key->hw_key_idx);
1768 IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
1774 * handle build REPLY_TX command notification.
1776 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
1777 struct iwl_cmd *cmd,
1778 struct ieee80211_tx_info *info,
1779 struct ieee80211_hdr *hdr, u8 std_id)
1781 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
1782 __le32 tx_flags = tx->tx_flags;
1783 __le16 fc = hdr->frame_control;
1784 u8 rc_flags = info->control.rates[0].flags;
1786 tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
1787 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
1788 tx_flags |= TX_CMD_FLG_ACK_MSK;
1789 if (ieee80211_is_mgmt(fc))
1790 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
1791 if (ieee80211_is_probe_resp(fc) &&
1792 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
1793 tx_flags |= TX_CMD_FLG_TSF_MSK;
1795 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
1796 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
1799 tx->sta_id = std_id;
1800 if (ieee80211_has_morefrags(fc))
1801 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
1803 if (ieee80211_is_data_qos(fc)) {
1804 u8 *qc = ieee80211_get_qos_ctl(hdr);
1805 tx->tid_tspec = qc[0] & 0xf;
1806 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
1808 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
1811 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
1812 tx_flags |= TX_CMD_FLG_RTS_MSK;
1813 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
1814 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
1815 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
1816 tx_flags |= TX_CMD_FLG_CTS_MSK;
1819 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
1820 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
1822 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
1823 if (ieee80211_is_mgmt(fc)) {
1824 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
1825 tx->timeout.pm_frame_timeout = cpu_to_le16(3);
1827 tx->timeout.pm_frame_timeout = cpu_to_le16(2);
1829 tx->timeout.pm_frame_timeout = 0;
1830 #ifdef CONFIG_IWL3945_LEDS
1831 priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
1835 tx->driver_txop = 0;
1836 tx->tx_flags = tx_flags;
1837 tx->next_frame_len = 0;
1841 * iwl3945_get_sta_id - Find station's index within station table
1843 static int iwl3945_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
1846 u16 fc = le16_to_cpu(hdr->frame_control);
1848 /* If this frame is broadcast or management, use broadcast station id */
1849 if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
1850 is_multicast_ether_addr(hdr->addr1))
1851 return priv->hw_params.bcast_sta_id;
1853 switch (priv->iw_mode) {
1855 /* If we are a client station in a BSS network, use the special
1856 * AP station entry (that's the only station we communicate with) */
1857 case NL80211_IFTYPE_STATION:
1860 /* If we are an AP, then find the station, or use BCAST */
1861 case NL80211_IFTYPE_AP:
1862 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
1863 if (sta_id != IWL_INVALID_STATION)
1865 return priv->hw_params.bcast_sta_id;
1867 /* If this frame is going out to an IBSS network, find the station,
1868 * or create a new station table entry */
1869 case NL80211_IFTYPE_ADHOC: {
1870 /* Create new station table entry */
1871 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
1872 if (sta_id != IWL_INVALID_STATION)
1875 sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
1877 if (sta_id != IWL_INVALID_STATION)
1880 IWL_DEBUG_DROP("Station %pM not in station map. "
1881 "Defaulting to broadcast...\n",
1883 iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
1884 return priv->hw_params.bcast_sta_id;
1886 /* If we are in monitor mode, use BCAST. This is required for
1887 * packet injection. */
1888 case NL80211_IFTYPE_MONITOR:
1889 return priv->hw_params.bcast_sta_id;
1892 IWL_WARN(priv, "Unknown mode of operation: %d\n",
1894 return priv->hw_params.bcast_sta_id;
1899 * start REPLY_TX command process
1901 static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
1903 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1904 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1905 struct iwl3945_tx_cmd *tx;
1906 struct iwl_tx_queue *txq = NULL;
1907 struct iwl_queue *q = NULL;
1908 struct iwl_cmd *out_cmd = NULL;
1909 dma_addr_t phys_addr;
1910 dma_addr_t txcmd_phys;
1911 int txq_id = skb_get_queue_mapping(skb);
1912 u16 len, idx, len_org, hdr_len;
1919 u8 wait_write_ptr = 0;
1921 unsigned long flags;
1924 spin_lock_irqsave(&priv->lock, flags);
1925 if (iwl_is_rfkill(priv)) {
1926 IWL_DEBUG_DROP("Dropping - RF KILL\n");
1930 if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
1931 IWL_ERR(priv, "ERROR: No TX rate available.\n");
1935 unicast = !is_multicast_ether_addr(hdr->addr1);
1938 fc = hdr->frame_control;
1940 #ifdef CONFIG_IWL3945_DEBUG
1941 if (ieee80211_is_auth(fc))
1942 IWL_DEBUG_TX("Sending AUTH frame\n");
1943 else if (ieee80211_is_assoc_req(fc))
1944 IWL_DEBUG_TX("Sending ASSOC frame\n");
1945 else if (ieee80211_is_reassoc_req(fc))
1946 IWL_DEBUG_TX("Sending REASSOC frame\n");
1949 /* drop all data frame if we are not associated */
1950 if (ieee80211_is_data(fc) &&
1951 (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */
1952 (!iwl3945_is_associated(priv) ||
1953 ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
1954 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
1958 spin_unlock_irqrestore(&priv->lock, flags);
1960 hdr_len = ieee80211_hdrlen(fc);
1962 /* Find (or create) index into station table for destination station */
1963 sta_id = iwl3945_get_sta_id(priv, hdr);
1964 if (sta_id == IWL_INVALID_STATION) {
1965 IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
1970 IWL_DEBUG_RATE("station Id %d\n", sta_id);
1972 if (ieee80211_is_data_qos(fc)) {
1973 qc = ieee80211_get_qos_ctl(hdr);
1974 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
1975 seq_number = priv->stations_39[sta_id].tid[tid].seq_number &
1977 hdr->seq_ctrl = cpu_to_le16(seq_number) |
1979 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
1983 /* Descriptor for chosen Tx queue */
1984 txq = &priv->txq[txq_id];
1987 spin_lock_irqsave(&priv->lock, flags);
1989 idx = get_cmd_index(q, q->write_ptr, 0);
1991 /* Set up driver data for this TFD */
1992 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
1993 txq->txb[q->write_ptr].skb[0] = skb;
1995 /* Init first empty entry in queue's array of Tx/cmd buffers */
1996 out_cmd = txq->cmd[idx];
1997 tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
1998 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
1999 memset(tx, 0, sizeof(*tx));
2002 * Set up the Tx-command (not MAC!) header.
2003 * Store the chosen Tx queue and TFD index within the sequence field;
2004 * after Tx, uCode's Tx response will return this value so driver can
2005 * locate the frame within the tx queue and do post-tx processing.
2007 out_cmd->hdr.cmd = REPLY_TX;
2008 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
2009 INDEX_TO_SEQ(q->write_ptr)));
2011 /* Copy MAC header from skb into command buffer */
2012 memcpy(tx->hdr, hdr, hdr_len);
2015 * Use the first empty entry in this queue's command buffer array
2016 * to contain the Tx command and MAC header concatenated together
2017 * (payload data will be in another buffer).
2018 * Size of this varies, due to varying MAC header length.
2019 * If end is not dword aligned, we'll have 2 extra bytes at the end
2020 * of the MAC header (device reads on dword boundaries).
2021 * We'll tell device about this padding later.
2023 len = sizeof(struct iwl3945_tx_cmd) +
2024 sizeof(struct iwl_cmd_header) + hdr_len;
2027 len = (len + 3) & ~3;
2034 /* Physical address of this Tx command's header (not MAC header!),
2035 * within command buffer array. */
2036 txcmd_phys = pci_map_single(priv->pci_dev,
2037 out_cmd, sizeof(struct iwl_cmd),
2039 pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
2040 pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd));
2041 /* Add buffer containing Tx command and MAC(!) header to TFD's
2043 txcmd_phys += offsetof(struct iwl_cmd, hdr);
2045 /* Add buffer containing Tx command and MAC(!) header to TFD's
2047 priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
2048 txcmd_phys, len, 1, 0);
2050 if (info->control.hw_key)
2051 iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, 0);
2053 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2054 * if any (802.11 null frames have no payload). */
2055 len = skb->len - hdr_len;
2057 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
2058 len, PCI_DMA_TODEVICE);
2059 priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
2064 /* Total # bytes to be transmitted */
2065 len = (u16)skb->len;
2066 tx->len = cpu_to_le16(len);
2068 /* TODO need this for burst mode later on */
2069 iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
2071 /* set is_hcca to 0; it probably will never be implemented */
2072 iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
2074 tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
2075 tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
2077 if (!ieee80211_has_morefrags(hdr->frame_control)) {
2078 txq->need_update = 1;
2080 priv->stations_39[sta_id].tid[tid].seq_number = seq_number;
2083 txq->need_update = 0;
2086 iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
2088 iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
2089 ieee80211_hdrlen(fc));
2091 /* Tell device the write index *just past* this latest filled TFD */
2092 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
2093 rc = iwl_txq_update_write_ptr(priv, txq);
2094 spin_unlock_irqrestore(&priv->lock, flags);
2099 if ((iwl_queue_space(q) < q->high_mark)
2100 && priv->mac80211_registered) {
2101 if (wait_write_ptr) {
2102 spin_lock_irqsave(&priv->lock, flags);
2103 txq->need_update = 1;
2104 iwl_txq_update_write_ptr(priv, txq);
2105 spin_unlock_irqrestore(&priv->lock, flags);
2108 ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
2114 spin_unlock_irqrestore(&priv->lock, flags);
2119 static void iwl3945_set_rate(struct iwl_priv *priv)
2121 const struct ieee80211_supported_band *sband = NULL;
2122 struct ieee80211_rate *rate;
2125 sband = iwl_get_hw_mode(priv, priv->band);
2127 IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
2131 priv->active_rate = 0;
2132 priv->active_rate_basic = 0;
2134 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2135 sband->band == IEEE80211_BAND_2GHZ ? "2.4" : "5");
2137 for (i = 0; i < sband->n_bitrates; i++) {
2138 rate = &sband->bitrates[i];
2139 if ((rate->hw_value < IWL_RATE_COUNT) &&
2140 !(rate->flags & IEEE80211_CHAN_DISABLED)) {
2141 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2142 rate->hw_value, iwl3945_rates[rate->hw_value].plcp);
2143 priv->active_rate |= (1 << rate->hw_value);
2147 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2148 priv->active_rate, priv->active_rate_basic);
2151 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2152 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2155 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
2156 priv->staging39_rxon.cck_basic_rates =
2157 ((priv->active_rate_basic &
2158 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
2160 priv->staging39_rxon.cck_basic_rates =
2161 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
2163 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
2164 priv->staging39_rxon.ofdm_basic_rates =
2165 ((priv->active_rate_basic &
2166 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
2167 IWL_FIRST_OFDM_RATE) & 0xFF;
2169 priv->staging39_rxon.ofdm_basic_rates =
2170 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2173 static void iwl3945_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
2175 unsigned long flags;
2177 if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
2180 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2181 disable_radio ? "OFF" : "ON");
2183 if (disable_radio) {
2184 iwl_scan_cancel(priv);
2185 /* FIXME: This is a workaround for AP */
2186 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2187 spin_lock_irqsave(&priv->lock, flags);
2188 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2189 CSR_UCODE_SW_BIT_RFKILL);
2190 spin_unlock_irqrestore(&priv->lock, flags);
2191 iwl_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
2192 set_bit(STATUS_RF_KILL_SW, &priv->status);
2197 spin_lock_irqsave(&priv->lock, flags);
2198 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2200 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2201 spin_unlock_irqrestore(&priv->lock, flags);
2206 spin_lock_irqsave(&priv->lock, flags);
2207 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2208 if (!iwl_grab_nic_access(priv))
2209 iwl_release_nic_access(priv);
2210 spin_unlock_irqrestore(&priv->lock, flags);
2212 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
2213 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2214 "disabled by HW switch\n");
2219 queue_work(priv->workqueue, &priv->restart);
2223 void iwl3945_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
2224 u32 decrypt_res, struct ieee80211_rx_status *stats)
2227 le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
2229 if (priv->active39_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
2232 if (!(fc & IEEE80211_FCTL_PROTECTED))
2235 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
2236 switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
2237 case RX_RES_STATUS_SEC_TYPE_TKIP:
2238 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2239 RX_RES_STATUS_BAD_ICV_MIC)
2240 stats->flag |= RX_FLAG_MMIC_ERROR;
2241 case RX_RES_STATUS_SEC_TYPE_WEP:
2242 case RX_RES_STATUS_SEC_TYPE_CCMP:
2243 if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
2244 RX_RES_STATUS_DECRYPT_OK) {
2245 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2246 stats->flag |= RX_FLAG_DECRYPTED;
2255 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2257 #include "iwl-spectrum.h"
2259 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2260 #define BEACON_TIME_MASK_HIGH 0xFF000000
2261 #define TIME_UNIT 1024
2264 * extended beacon time format
2265 * time in usec will be changed into a 32-bit value in 8:24 format
2266 * the high 1 byte is the beacon counts
2267 * the lower 3 bytes is the time in usec within one beacon interval
2270 static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
2274 u32 interval = beacon_interval * 1024;
2276 if (!interval || !usec)
2279 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
2280 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
2282 return (quot << 24) + rem;
2285 /* base is usually what we get from ucode with each received frame,
2286 * the same as HW timer counter counting down
2289 static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
2291 u32 base_low = base & BEACON_TIME_MASK_LOW;
2292 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
2293 u32 interval = beacon_interval * TIME_UNIT;
2294 u32 res = (base & BEACON_TIME_MASK_HIGH) +
2295 (addon & BEACON_TIME_MASK_HIGH);
2297 if (base_low > addon_low)
2298 res += base_low - addon_low;
2299 else if (base_low < addon_low) {
2300 res += interval + base_low - addon_low;
2305 return cpu_to_le32(res);
2308 static int iwl3945_get_measurement(struct iwl_priv *priv,
2309 struct ieee80211_measurement_params *params,
2312 struct iwl_spectrum_cmd spectrum;
2313 struct iwl_rx_packet *res;
2314 struct iwl_host_cmd cmd = {
2315 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
2316 .data = (void *)&spectrum,
2317 .meta.flags = CMD_WANT_SKB,
2319 u32 add_time = le64_to_cpu(params->start_time);
2321 int spectrum_resp_status;
2322 int duration = le16_to_cpu(params->duration);
2324 if (iwl3945_is_associated(priv))
2326 iwl3945_usecs_to_beacons(
2327 le64_to_cpu(params->start_time) - priv->last_tsf,
2328 le16_to_cpu(priv->rxon_timing.beacon_interval));
2330 memset(&spectrum, 0, sizeof(spectrum));
2332 spectrum.channel_count = cpu_to_le16(1);
2334 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
2335 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
2336 cmd.len = sizeof(spectrum);
2337 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
2339 if (iwl3945_is_associated(priv))
2340 spectrum.start_time =
2341 iwl3945_add_beacon_time(priv->last_beacon_time,
2343 le16_to_cpu(priv->rxon_timing.beacon_interval));
2345 spectrum.start_time = 0;
2347 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
2348 spectrum.channels[0].channel = params->channel;
2349 spectrum.channels[0].type = type;
2350 if (priv->active39_rxon.flags & RXON_FLG_BAND_24G_MSK)
2351 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
2352 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
2354 rc = iwl_send_cmd_sync(priv, &cmd);
2358 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
2359 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
2360 IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
2364 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
2365 switch (spectrum_resp_status) {
2366 case 0: /* Command will be handled */
2367 if (res->u.spectrum.id != 0xff) {
2368 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2369 res->u.spectrum.id);
2370 priv->measurement_status &= ~MEASUREMENT_READY;
2372 priv->measurement_status |= MEASUREMENT_ACTIVE;
2376 case 1: /* Command will not be handled */
2381 dev_kfree_skb_any(cmd.meta.u.skb);
2387 static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
2388 struct iwl_rx_mem_buffer *rxb)
2390 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2391 struct iwl_alive_resp *palive;
2392 struct delayed_work *pwork;
2394 palive = &pkt->u.alive_frame;
2396 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2398 palive->is_valid, palive->ver_type,
2399 palive->ver_subtype);
2401 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
2402 IWL_DEBUG_INFO("Initialization Alive received.\n");
2403 memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
2404 sizeof(struct iwl_alive_resp));
2405 pwork = &priv->init_alive_start;
2407 IWL_DEBUG_INFO("Runtime Alive received.\n");
2408 memcpy(&priv->card_alive, &pkt->u.alive_frame,
2409 sizeof(struct iwl_alive_resp));
2410 pwork = &priv->alive_start;
2411 iwl3945_disable_events(priv);
2414 /* We delay the ALIVE response by 5ms to
2415 * give the HW RF Kill time to activate... */
2416 if (palive->is_valid == UCODE_VALID_OK)
2417 queue_delayed_work(priv->workqueue, pwork,
2418 msecs_to_jiffies(5));
2420 IWL_WARN(priv, "uCode did not respond OK.\n");
2423 static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
2424 struct iwl_rx_mem_buffer *rxb)
2426 #ifdef CONFIG_IWLWIFI_DEBUG
2427 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2430 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
2434 static void iwl3945_rx_reply_error(struct iwl_priv *priv,
2435 struct iwl_rx_mem_buffer *rxb)
2437 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2439 IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
2440 "seq 0x%04X ser 0x%08X\n",
2441 le32_to_cpu(pkt->u.err_resp.error_type),
2442 get_cmd_string(pkt->u.err_resp.cmd_id),
2443 pkt->u.err_resp.cmd_id,
2444 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2445 le32_to_cpu(pkt->u.err_resp.error_info));
2448 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2450 static void iwl3945_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
2452 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2453 struct iwl3945_rxon_cmd *rxon = (void *)&priv->active39_rxon;
2454 struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
2455 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2456 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
2457 rxon->channel = csa->channel;
2458 priv->staging39_rxon.channel = csa->channel;
2461 static void iwl3945_rx_spectrum_measure_notif(struct iwl_priv *priv,
2462 struct iwl_rx_mem_buffer *rxb)
2464 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2465 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2466 struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
2468 if (!report->state) {
2469 IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
2470 "Spectrum Measure Notification: Start\n");
2474 memcpy(&priv->measure_report, report, sizeof(*report));
2475 priv->measurement_status |= MEASUREMENT_READY;
2479 static void iwl3945_rx_pm_sleep_notif(struct iwl_priv *priv,
2480 struct iwl_rx_mem_buffer *rxb)
2482 #ifdef CONFIG_IWL3945_DEBUG
2483 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2484 struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
2485 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2486 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2490 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
2491 struct iwl_rx_mem_buffer *rxb)
2493 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2494 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2495 "notification for %s:\n",
2496 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
2497 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw,
2498 le32_to_cpu(pkt->len));
2501 static void iwl3945_bg_beacon_update(struct work_struct *work)
2503 struct iwl_priv *priv =
2504 container_of(work, struct iwl_priv, beacon_update);
2505 struct sk_buff *beacon;
2507 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2508 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
2511 IWL_ERR(priv, "update beacon failed\n");
2515 mutex_lock(&priv->mutex);
2516 /* new beacon skb is allocated every time; dispose previous.*/
2517 if (priv->ibss_beacon)
2518 dev_kfree_skb(priv->ibss_beacon);
2520 priv->ibss_beacon = beacon;
2521 mutex_unlock(&priv->mutex);
2523 iwl3945_send_beacon_cmd(priv);
2526 static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
2527 struct iwl_rx_mem_buffer *rxb)
2529 #ifdef CONFIG_IWL3945_DEBUG
2530 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2531 struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
2532 u8 rate = beacon->beacon_notify_hdr.rate;
2534 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2535 "tsf %d %d rate %d\n",
2536 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
2537 beacon->beacon_notify_hdr.failure_frame,
2538 le32_to_cpu(beacon->ibss_mgr_status),
2539 le32_to_cpu(beacon->high_tsf),
2540 le32_to_cpu(beacon->low_tsf), rate);
2543 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
2544 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
2545 queue_work(priv->workqueue, &priv->beacon_update);
2548 /* Service response to REPLY_SCAN_CMD (0x80) */
2549 static void iwl3945_rx_reply_scan(struct iwl_priv *priv,
2550 struct iwl_rx_mem_buffer *rxb)
2552 #ifdef CONFIG_IWL3945_DEBUG
2553 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2554 struct iwl_scanreq_notification *notif =
2555 (struct iwl_scanreq_notification *)pkt->u.raw;
2557 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
2561 /* Service SCAN_START_NOTIFICATION (0x82) */
2562 static void iwl3945_rx_scan_start_notif(struct iwl_priv *priv,
2563 struct iwl_rx_mem_buffer *rxb)
2565 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2566 struct iwl_scanstart_notification *notif =
2567 (struct iwl_scanstart_notification *)pkt->u.raw;
2568 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
2569 IWL_DEBUG_SCAN("Scan start: "
2571 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2573 notif->band ? "bg" : "a",
2575 notif->tsf_low, notif->status, notif->beacon_timer);
2578 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2579 static void iwl3945_rx_scan_results_notif(struct iwl_priv *priv,
2580 struct iwl_rx_mem_buffer *rxb)
2582 #ifdef CONFIG_IWLWIFI_DEBUG
2583 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2584 struct iwl_scanresults_notification *notif =
2585 (struct iwl_scanresults_notification *)pkt->u.raw;
2588 IWL_DEBUG_SCAN("Scan ch.res: "
2590 "(TSF: 0x%08X:%08X) - %d "
2591 "elapsed=%lu usec (%dms since last)\n",
2593 notif->band ? "bg" : "a",
2594 le32_to_cpu(notif->tsf_high),
2595 le32_to_cpu(notif->tsf_low),
2596 le32_to_cpu(notif->statistics[0]),
2597 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
2598 jiffies_to_msecs(elapsed_jiffies
2599 (priv->last_scan_jiffies, jiffies)));
2601 priv->last_scan_jiffies = jiffies;
2602 priv->next_scan_jiffies = 0;
2605 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2606 static void iwl3945_rx_scan_complete_notif(struct iwl_priv *priv,
2607 struct iwl_rx_mem_buffer *rxb)
2609 #ifdef CONFIG_IWLWIFI_DEBUG
2610 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2611 struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
2614 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2615 scan_notif->scanned_channels,
2616 scan_notif->tsf_low,
2617 scan_notif->tsf_high, scan_notif->status);
2619 /* The HW is no longer scanning */
2620 clear_bit(STATUS_SCAN_HW, &priv->status);
2622 /* The scan completion notification came in, so kill that timer... */
2623 cancel_delayed_work(&priv->scan_check);
2625 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2626 (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ?
2628 jiffies_to_msecs(elapsed_jiffies
2629 (priv->scan_pass_start, jiffies)));
2631 /* Remove this scanned band from the list of pending
2632 * bands to scan, band G precedes A in order of scanning
2633 * as seen in iwl3945_bg_request_scan */
2634 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ))
2635 priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ);
2636 else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ))
2637 priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ);
2639 /* If a request to abort was given, or the scan did not succeed
2640 * then we reset the scan state machine and terminate,
2641 * re-queuing another scan if one has been requested */
2642 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2643 IWL_DEBUG_INFO("Aborted scan completed.\n");
2644 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
2646 /* If there are more bands on this scan pass reschedule */
2647 if (priv->scan_bands > 0)
2651 priv->last_scan_jiffies = jiffies;
2652 priv->next_scan_jiffies = 0;
2653 IWL_DEBUG_INFO("Setting scan to off\n");
2655 clear_bit(STATUS_SCANNING, &priv->status);
2657 IWL_DEBUG_INFO("Scan took %dms\n",
2658 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
2660 queue_work(priv->workqueue, &priv->scan_completed);
2665 priv->scan_pass_start = jiffies;
2666 queue_work(priv->workqueue, &priv->request_scan);
2669 /* Handle notification from uCode that card's power state is changing
2670 * due to software, hardware, or critical temperature RFKILL */
2671 static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
2672 struct iwl_rx_mem_buffer *rxb)
2674 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
2675 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
2676 unsigned long status = priv->status;
2678 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2679 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
2680 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
2682 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
2683 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2685 if (flags & HW_CARD_DISABLED)
2686 set_bit(STATUS_RF_KILL_HW, &priv->status);
2688 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2691 if (flags & SW_CARD_DISABLED)
2692 set_bit(STATUS_RF_KILL_SW, &priv->status);
2694 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2696 iwl_scan_cancel(priv);
2698 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
2699 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
2700 (test_bit(STATUS_RF_KILL_SW, &status) !=
2701 test_bit(STATUS_RF_KILL_SW, &priv->status)))
2702 queue_work(priv->workqueue, &priv->rf_kill);
2704 wake_up_interruptible(&priv->wait_command_queue);
2708 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
2710 * Setup the RX handlers for each of the reply types sent from the uCode
2713 * This function chains into the hardware specific files for them to setup
2714 * any hardware specific handlers as well.
2716 static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
2718 priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
2719 priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
2720 priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error;
2721 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa;
2722 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
2723 iwl3945_rx_spectrum_measure_notif;
2724 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif;
2725 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
2726 iwl3945_rx_pm_debug_statistics_notif;
2727 priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
2730 * The same handler is used for both the REPLY to a discrete
2731 * statistics request from the host as well as for the periodic
2732 * statistics notifications (after received beacons) from the uCode.
2734 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
2735 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
2737 priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan;
2738 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif;
2739 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
2740 iwl3945_rx_scan_results_notif;
2741 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
2742 iwl3945_rx_scan_complete_notif;
2743 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
2745 /* Set up hardware specific Rx handlers */
2746 iwl3945_hw_rx_handler_setup(priv);
2750 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
2751 * When FW advances 'R' index, all entries between old and new 'R' index
2752 * need to be reclaimed.
2754 static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv,
2755 int txq_id, int index)
2757 struct iwl_tx_queue *txq = &priv->txq[txq_id];
2758 struct iwl_queue *q = &txq->q;
2761 if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
2762 IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
2763 "is out of range [0-%d] %d %d.\n", txq_id,
2764 index, q->n_bd, q->write_ptr, q->read_ptr);
2768 for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index;
2769 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
2771 IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", index,
2772 q->write_ptr, q->read_ptr);
2773 queue_work(priv->workqueue, &priv->restart);
2782 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
2783 * @rxb: Rx buffer to reclaim
2785 * If an Rx buffer has an async callback associated with it the callback
2786 * will be executed. The attached skb (if present) will only be freed
2787 * if the callback returns 1
2789 static void iwl3945_tx_cmd_complete(struct iwl_priv *priv,
2790 struct iwl_rx_mem_buffer *rxb)
2792 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
2793 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
2794 int txq_id = SEQ_TO_QUEUE(sequence);
2795 int index = SEQ_TO_INDEX(sequence);
2796 int huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
2798 struct iwl_cmd *cmd;
2800 if (WARN(txq_id != IWL_CMD_QUEUE_NUM,
2801 "wrong command queue %d, sequence 0x%X readp=%d writep=%d\n",
2803 priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr,
2804 priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) {
2805 iwl_print_hex_dump(priv, IWL_DL_INFO , rxb, 32);
2809 cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
2810 cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
2812 /* Input error checking is done when commands are added to queue. */
2813 if (cmd->meta.flags & CMD_WANT_SKB) {
2814 cmd->meta.source->u.skb = rxb->skb;
2816 } else if (cmd->meta.u.callback &&
2817 !cmd->meta.u.callback(priv, cmd, rxb->skb))
2820 iwl3945_cmd_queue_reclaim(priv, txq_id, index);
2822 if (!(cmd->meta.flags & CMD_ASYNC)) {
2823 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
2824 wake_up_interruptible(&priv->wait_command_queue);
2828 /************************** RX-FUNCTIONS ****************************/
2830 * Rx theory of operation
2832 * The host allocates 32 DMA target addresses and passes the host address
2833 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
2837 * The host/firmware share two index registers for managing the Rx buffers.
2839 * The READ index maps to the first position that the firmware may be writing
2840 * to -- the driver can read up to (but not including) this position and get
2842 * The READ index is managed by the firmware once the card is enabled.
2844 * The WRITE index maps to the last position the driver has read from -- the
2845 * position preceding WRITE is the last slot the firmware can place a packet.
2847 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
2850 * During initialization, the host sets up the READ queue position to the first
2851 * INDEX position, and WRITE to the last (READ - 1 wrapped)
2853 * When the firmware places a packet in a buffer, it will advance the READ index
2854 * and fire the RX interrupt. The driver can then query the READ index and
2855 * process as many packets as possible, moving the WRITE index forward as it
2856 * resets the Rx queue buffers with new memory.
2858 * The management in the driver is as follows:
2859 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
2860 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
2861 * to replenish the iwl->rxq->rx_free.
2862 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
2863 * iwl->rxq is replenished and the READ INDEX is updated (updating the
2864 * 'processed' and 'read' driver indexes as well)
2865 * + A received packet is processed and handed to the kernel network stack,
2866 * detached from the iwl->rxq. The driver 'processed' index is updated.
2867 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
2868 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
2869 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
2870 * were enough free buffers and RX_STALLED is set it is cleared.
2875 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
2876 * iwl3945_rx_queue_restock
2877 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
2878 * queue, updates firmware pointers, and updates
2879 * the WRITE index. If insufficient rx_free buffers
2880 * are available, schedules iwl3945_rx_replenish
2882 * -- enable interrupts --
2883 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
2884 * READ INDEX, detaching the SKB from the pool.
2885 * Moves the packet buffer from queue to rx_used.
2886 * Calls iwl3945_rx_queue_restock to refill any empty
2893 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
2895 static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
2896 dma_addr_t dma_addr)
2898 return cpu_to_le32((u32)dma_addr);
2902 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
2904 * If there are slots in the RX queue that need to be restocked,
2905 * and we have free pre-allocated buffers, fill the ranks as much
2906 * as we can, pulling from rx_free.
2908 * This moves the 'write' index forward to catch up with 'processed', and
2909 * also updates the memory address in the firmware to reference the new
2912 static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
2914 struct iwl_rx_queue *rxq = &priv->rxq;
2915 struct list_head *element;
2916 struct iwl_rx_mem_buffer *rxb;
2917 unsigned long flags;
2920 spin_lock_irqsave(&rxq->lock, flags);
2921 write = rxq->write & ~0x7;
2922 while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
2923 /* Get next free Rx buffer, remove from free list */
2924 element = rxq->rx_free.next;
2925 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
2928 /* Point to Rx buffer via next RBD in circular buffer */
2929 rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
2930 rxq->queue[rxq->write] = rxb;
2931 rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
2934 spin_unlock_irqrestore(&rxq->lock, flags);
2935 /* If the pre-allocated buffer pool is dropping low, schedule to
2937 if (rxq->free_count <= RX_LOW_WATERMARK)
2938 queue_work(priv->workqueue, &priv->rx_replenish);
2941 /* If we've added more space for the firmware to place data, tell it.
2942 * Increment device's write pointer in multiples of 8. */
2943 if ((write != (rxq->write & ~0x7))
2944 || (abs(rxq->write - rxq->read) > 7)) {
2945 spin_lock_irqsave(&rxq->lock, flags);
2946 rxq->need_update = 1;
2947 spin_unlock_irqrestore(&rxq->lock, flags);
2948 rc = iwl_rx_queue_update_write_ptr(priv, rxq);
2957 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
2959 * When moving to rx_free an SKB is allocated for the slot.
2961 * Also restock the Rx queue via iwl3945_rx_queue_restock.
2962 * This is called as a scheduled work item (except for during initialization)
2964 static void iwl3945_rx_allocate(struct iwl_priv *priv)
2966 struct iwl_rx_queue *rxq = &priv->rxq;
2967 struct list_head *element;
2968 struct iwl_rx_mem_buffer *rxb;
2969 unsigned long flags;
2970 spin_lock_irqsave(&rxq->lock, flags);
2971 while (!list_empty(&rxq->rx_used)) {
2972 element = rxq->rx_used.next;
2973 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
2975 /* Alloc a new receive buffer */
2977 alloc_skb(priv->hw_params.rx_buf_size,
2978 __GFP_NOWARN | GFP_ATOMIC);
2980 if (net_ratelimit())
2981 IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
2982 /* We don't reschedule replenish work here -- we will
2983 * call the restock method and if it still needs
2984 * more buffers it will schedule replenish */
2988 /* If radiotap head is required, reserve some headroom here.
2989 * The physical head count is a variable rx_stats->phy_count.
2990 * We reserve 4 bytes here. Plus these extra bytes, the
2991 * headroom of the physical head should be enough for the
2992 * radiotap head that iwl3945 supported. See iwl3945_rt.
2994 skb_reserve(rxb->skb, 4);
2996 priv->alloc_rxb_skb++;
2999 /* Get physical address of RB/SKB */
3000 rxb->real_dma_addr = pci_map_single(priv->pci_dev,
3002 priv->hw_params.rx_buf_size,
3003 PCI_DMA_FROMDEVICE);
3004 list_add_tail(&rxb->list, &rxq->rx_free);
3007 spin_unlock_irqrestore(&rxq->lock, flags);
3011 * this should be called while priv->lock is locked
3013 static void __iwl3945_rx_replenish(void *data)
3015 struct iwl_priv *priv = data;
3017 iwl3945_rx_allocate(priv);
3018 iwl3945_rx_queue_restock(priv);
3022 void iwl3945_rx_replenish(void *data)
3024 struct iwl_priv *priv = data;
3025 unsigned long flags;
3027 iwl3945_rx_allocate(priv);
3029 spin_lock_irqsave(&priv->lock, flags);
3030 iwl3945_rx_queue_restock(priv);
3031 spin_unlock_irqrestore(&priv->lock, flags);
3034 /* Convert linear signal-to-noise ratio into dB */
3035 static u8 ratio2dB[100] = {
3036 /* 0 1 2 3 4 5 6 7 8 9 */
3037 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3038 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3039 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3040 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3041 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3042 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3043 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3044 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3045 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3046 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3049 /* Calculates a relative dB value from a ratio of linear
3050 * (i.e. not dB) signal levels.
3051 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3052 int iwl3945_calc_db_from_ratio(int sig_ratio)
3054 /* 1000:1 or higher just report as 60 dB */
3055 if (sig_ratio >= 1000)
3058 /* 100:1 or higher, divide by 10 and use table,
3059 * add 20 dB to make up for divide by 10 */
3060 if (sig_ratio >= 100)
3061 return 20 + (int)ratio2dB[sig_ratio/10];
3063 /* We shouldn't see this */
3067 /* Use table for ratios 1:1 - 99:1 */
3068 return (int)ratio2dB[sig_ratio];
3071 #define PERFECT_RSSI (-20) /* dBm */
3072 #define WORST_RSSI (-95) /* dBm */
3073 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3075 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3076 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3077 * about formulas used below. */
3078 int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
3081 int degradation = PERFECT_RSSI - rssi_dbm;
3083 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3084 * as indicator; formula is (signal dbm - noise dbm).
3085 * SNR at or above 40 is a great signal (100%).
3086 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3087 * Weakest usable signal is usually 10 - 15 dB SNR. */
3089 if (rssi_dbm - noise_dbm >= 40)
3091 else if (rssi_dbm < noise_dbm)
3093 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
3095 /* Else use just the signal level.
3096 * This formula is a least squares fit of data points collected and
3097 * compared with a reference system that had a percentage (%) display
3098 * for signal quality. */
3100 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
3101 (15 * RSSI_RANGE + 62 * degradation)) /
3102 (RSSI_RANGE * RSSI_RANGE);
3106 else if (sig_qual < 1)
3113 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3115 * Uses the priv->rx_handlers callback function array to invoke
3116 * the appropriate handlers, including command responses,
3117 * frame-received notifications, and other notifications.
3119 static void iwl3945_rx_handle(struct iwl_priv *priv)
3121 struct iwl_rx_mem_buffer *rxb;
3122 struct iwl_rx_packet *pkt;
3123 struct iwl_rx_queue *rxq = &priv->rxq;
3126 unsigned long flags;
3130 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3131 * buffer that the driver may process (last buffer filled by ucode). */
3132 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
3135 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
3137 /* Rx interrupt, but nothing sent from uCode */
3139 IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
3142 rxb = rxq->queue[i];
3144 /* If an RXB doesn't have a Rx queue slot associated with it,
3145 * then a bug has been introduced in the queue refilling
3146 * routines -- catch it here */
3147 BUG_ON(rxb == NULL);
3149 rxq->queue[i] = NULL;
3151 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->real_dma_addr,
3152 priv->hw_params.rx_buf_size,
3153 PCI_DMA_FROMDEVICE);
3154 pkt = (struct iwl_rx_packet *)rxb->skb->data;
3156 /* Reclaim a command buffer only if this packet is a response
3157 * to a (driver-originated) command.
3158 * If the packet (e.g. Rx frame) originated from uCode,
3159 * there is no command buffer to reclaim.
3160 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3161 * but apparently a few don't get set; catch them here. */
3162 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
3163 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
3164 (pkt->hdr.cmd != REPLY_TX);
3166 /* Based on type of command response or notification,
3167 * handle those that need handling via function in
3168 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3169 if (priv->rx_handlers[pkt->hdr.cmd]) {
3170 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3171 "r = %d, i = %d, %s, 0x%02x\n", r, i,
3172 get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
3173 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
3175 /* No handling needed */
3176 IWL_DEBUG(IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
3177 "r %d i %d No handler needed for %s, 0x%02x\n",
3178 r, i, get_cmd_string(pkt->hdr.cmd),
3183 /* Invoke any callbacks, transfer the skb to caller, and
3184 * fire off the (possibly) blocking iwl_send_cmd()
3185 * as we reclaim the driver command queue */
3186 if (rxb && rxb->skb)
3187 iwl3945_tx_cmd_complete(priv, rxb);
3189 IWL_WARN(priv, "Claim null rxb?\n");
3192 /* For now we just don't re-use anything. We can tweak this
3193 * later to try and re-use notification packets and SKBs that
3194 * fail to Rx correctly */
3195 if (rxb->skb != NULL) {
3196 priv->alloc_rxb_skb--;
3197 dev_kfree_skb_any(rxb->skb);
3201 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
3202 priv->hw_params.rx_buf_size,
3203 PCI_DMA_FROMDEVICE);
3204 spin_lock_irqsave(&rxq->lock, flags);
3205 list_add_tail(&rxb->list, &priv->rxq.rx_used);
3206 spin_unlock_irqrestore(&rxq->lock, flags);
3207 i = (i + 1) & RX_QUEUE_MASK;
3208 /* If there are a lot of unused frames,
3209 * restock the Rx queue so ucode won't assert. */
3214 __iwl3945_rx_replenish(priv);
3220 /* Backtrack one entry */
3222 iwl3945_rx_queue_restock(priv);
3225 #ifdef CONFIG_IWL3945_DEBUG
3226 static void iwl3945_print_rx_config_cmd(struct iwl_priv *priv,
3227 struct iwl3945_rxon_cmd *rxon)
3229 IWL_DEBUG_RADIO("RX CONFIG:\n");
3230 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
3231 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
3232 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
3233 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3234 le32_to_cpu(rxon->filter_flags));
3235 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
3236 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3237 rxon->ofdm_basic_rates);
3238 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
3239 IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr);
3240 IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
3241 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
3245 static void iwl3945_enable_interrupts(struct iwl_priv *priv)
3247 IWL_DEBUG_ISR("Enabling interrupts\n");
3248 set_bit(STATUS_INT_ENABLED, &priv->status);
3249 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
3253 /* call this function to flush any scheduled tasklet */
3254 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
3256 /* wait to make sure we flush pending tasklet*/
3257 synchronize_irq(priv->pci_dev->irq);
3258 tasklet_kill(&priv->irq_tasklet);
3262 static inline void iwl3945_disable_interrupts(struct iwl_priv *priv)
3264 clear_bit(STATUS_INT_ENABLED, &priv->status);
3266 /* disable interrupts from uCode/NIC to host */
3267 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
3269 /* acknowledge/clear/reset any interrupts still pending
3270 * from uCode or flow handler (Rx/Tx DMA) */
3271 iwl_write32(priv, CSR_INT, 0xffffffff);
3272 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
3273 IWL_DEBUG_ISR("Disabled interrupts\n");
3276 static const char *desc_lookup(int i)
3284 return "BAD_CHECKSUM";
3286 return "NMI_INTERRUPT";
3290 return "FATAL_ERROR";
3296 #define ERROR_START_OFFSET (1 * sizeof(u32))
3297 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3299 static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
3302 u32 desc, time, count, base, data1;
3303 u32 blink1, blink2, ilink1, ilink2;
3306 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
3308 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3309 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
3313 rc = iwl_grab_nic_access(priv);
3315 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3319 count = iwl_read_targ_mem(priv, base);
3321 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
3322 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
3323 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
3324 priv->status, count);
3327 IWL_ERR(priv, "Desc Time asrtPC blink2 "
3328 "ilink1 nmiPC Line\n");
3329 for (i = ERROR_START_OFFSET;
3330 i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
3331 i += ERROR_ELEM_SIZE) {
3332 desc = iwl_read_targ_mem(priv, base + i);
3334 iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
3336 iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
3338 iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
3340 iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
3342 iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
3344 iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
3347 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
3348 desc_lookup(desc), desc, time, blink1, blink2,
3349 ilink1, ilink2, data1);
3352 iwl_release_nic_access(priv);
3356 #define EVENT_START_OFFSET (6 * sizeof(u32))
3359 * iwl3945_print_event_log - Dump error event log to syslog
3361 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3363 static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
3364 u32 num_events, u32 mode)
3367 u32 base; /* SRAM byte address of event log header */
3368 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
3369 u32 ptr; /* SRAM byte address of log data */
3370 u32 ev, time, data; /* event log data */
3372 if (num_events == 0)
3375 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3378 event_size = 2 * sizeof(u32);
3380 event_size = 3 * sizeof(u32);
3382 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
3384 /* "time" is actually "data" for mode 0 (no timestamp).
3385 * place event id # at far right for easier visual parsing. */
3386 for (i = 0; i < num_events; i++) {
3387 ev = iwl_read_targ_mem(priv, ptr);
3389 time = iwl_read_targ_mem(priv, ptr);
3393 IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
3395 data = iwl_read_targ_mem(priv, ptr);
3397 IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
3402 static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
3405 u32 base; /* SRAM byte address of event log header */
3406 u32 capacity; /* event log capacity in # entries */
3407 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
3408 u32 num_wraps; /* # times uCode wrapped to top of log */
3409 u32 next_entry; /* index of next entry to be written by uCode */
3410 u32 size; /* # entries that we'll print */
3412 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3413 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
3414 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
3418 rc = iwl_grab_nic_access(priv);
3420 IWL_WARN(priv, "Can not read from adapter at this time.\n");
3424 /* event log header */
3425 capacity = iwl_read_targ_mem(priv, base);
3426 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
3427 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
3428 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
3430 size = num_wraps ? capacity : next_entry;
3432 /* bail out if nothing in log */
3434 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
3435 iwl_release_nic_access(priv);
3439 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
3442 /* if uCode has wrapped back to top of log, start at the oldest entry,
3443 * i.e the next one that uCode would fill. */
3445 iwl3945_print_event_log(priv, next_entry,
3446 capacity - next_entry, mode);
3448 /* (then/else) start at top of log */
3449 iwl3945_print_event_log(priv, 0, next_entry, mode);
3451 iwl_release_nic_access(priv);
3455 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
3457 static void iwl3945_irq_handle_error(struct iwl_priv *priv)
3459 /* Set the FW error flag -- cleared on iwl3945_down */
3460 set_bit(STATUS_FW_ERROR, &priv->status);
3462 /* Cancel currently queued command. */
3463 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3465 #ifdef CONFIG_IWL3945_DEBUG
3466 if (priv->debug_level & IWL_DL_FW_ERRORS) {
3467 iwl3945_dump_nic_error_log(priv);
3468 iwl3945_dump_nic_event_log(priv);
3469 iwl3945_print_rx_config_cmd(priv, &priv->staging39_rxon);
3473 wake_up_interruptible(&priv->wait_command_queue);
3475 /* Keep the restart process from trying to send host
3476 * commands by clearing the INIT status bit */
3477 clear_bit(STATUS_READY, &priv->status);
3479 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
3480 IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
3481 "Restarting adapter due to uCode error.\n");
3483 if (iwl3945_is_associated(priv)) {
3484 memcpy(&priv->recovery39_rxon, &priv->active39_rxon,
3485 sizeof(priv->recovery39_rxon));
3486 priv->error_recovering = 1;
3488 queue_work(priv->workqueue, &priv->restart);
3492 static void iwl3945_error_recovery(struct iwl_priv *priv)
3494 unsigned long flags;
3496 memcpy(&priv->staging39_rxon, &priv->recovery39_rxon,
3497 sizeof(priv->staging39_rxon));
3498 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3499 iwl3945_commit_rxon(priv);
3501 iwl3945_add_station(priv, priv->bssid, 1, 0);
3503 spin_lock_irqsave(&priv->lock, flags);
3504 priv->assoc_id = le16_to_cpu(priv->staging39_rxon.assoc_id);
3505 priv->error_recovering = 0;
3506 spin_unlock_irqrestore(&priv->lock, flags);
3509 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
3511 u32 inta, handled = 0;
3513 unsigned long flags;
3514 #ifdef CONFIG_IWL3945_DEBUG
3518 spin_lock_irqsave(&priv->lock, flags);
3520 /* Ack/clear/reset pending uCode interrupts.
3521 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
3522 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
3523 inta = iwl_read32(priv, CSR_INT);
3524 iwl_write32(priv, CSR_INT, inta);
3526 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
3527 * Any new interrupts that happen after this, either while we're
3528 * in this tasklet, or later, will show up in next ISR/tasklet. */
3529 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3530 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
3532 #ifdef CONFIG_IWL3945_DEBUG
3533 if (priv->debug_level & IWL_DL_ISR) {
3534 /* just for debug */
3535 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3536 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3537 inta, inta_mask, inta_fh);
3541 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
3542 * atomic, make sure that inta covers all the interrupts that
3543 * we've discovered, even if FH interrupt came in just after
3544 * reading CSR_INT. */
3545 if (inta_fh & CSR39_FH_INT_RX_MASK)
3546 inta |= CSR_INT_BIT_FH_RX;
3547 if (inta_fh & CSR39_FH_INT_TX_MASK)
3548 inta |= CSR_INT_BIT_FH_TX;
3550 /* Now service all interrupt bits discovered above. */
3551 if (inta & CSR_INT_BIT_HW_ERR) {
3552 IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
3554 /* Tell the device to stop sending interrupts */
3555 iwl3945_disable_interrupts(priv);
3557 iwl3945_irq_handle_error(priv);
3559 handled |= CSR_INT_BIT_HW_ERR;
3561 spin_unlock_irqrestore(&priv->lock, flags);
3566 #ifdef CONFIG_IWL3945_DEBUG
3567 if (priv->debug_level & (IWL_DL_ISR)) {
3568 /* NIC fires this, but we don't use it, redundant with WAKEUP */
3569 if (inta & CSR_INT_BIT_SCD)
3570 IWL_DEBUG_ISR("Scheduler finished to transmit "
3571 "the frame/frames.\n");
3573 /* Alive notification via Rx interrupt will do the real work */
3574 if (inta & CSR_INT_BIT_ALIVE)
3575 IWL_DEBUG_ISR("Alive interrupt\n");
3578 /* Safely ignore these bits for debug checks below */
3579 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
3581 /* Error detected by uCode */
3582 if (inta & CSR_INT_BIT_SW_ERR) {
3583 IWL_ERR(priv, "Microcode SW error detected. "
3584 "Restarting 0x%X.\n", inta);
3585 iwl3945_irq_handle_error(priv);
3586 handled |= CSR_INT_BIT_SW_ERR;
3589 /* uCode wakes up after power-down sleep */
3590 if (inta & CSR_INT_BIT_WAKEUP) {
3591 IWL_DEBUG_ISR("Wakeup interrupt\n");
3592 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
3593 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
3594 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
3595 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
3596 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
3597 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
3598 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
3600 handled |= CSR_INT_BIT_WAKEUP;
3603 /* All uCode command responses, including Tx command responses,
3604 * Rx "responses" (frame-received notification), and other
3605 * notifications from uCode come through here*/
3606 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
3607 iwl3945_rx_handle(priv);
3608 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
3611 if (inta & CSR_INT_BIT_FH_TX) {
3612 IWL_DEBUG_ISR("Tx interrupt\n");
3614 iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
3615 if (!iwl_grab_nic_access(priv)) {
3616 iwl_write_direct32(priv, FH39_TCSR_CREDIT
3617 (FH39_SRVC_CHNL), 0x0);
3618 iwl_release_nic_access(priv);
3620 handled |= CSR_INT_BIT_FH_TX;
3623 if (inta & ~handled)
3624 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
3626 if (inta & ~CSR_INI_SET_MASK) {
3627 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
3628 inta & ~CSR_INI_SET_MASK);
3629 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
3632 /* Re-enable all interrupts */
3633 /* only Re-enable if disabled by irq */
3634 if (test_bit(STATUS_INT_ENABLED, &priv->status))
3635 iwl3945_enable_interrupts(priv);
3637 #ifdef CONFIG_IWL3945_DEBUG
3638 if (priv->debug_level & (IWL_DL_ISR)) {
3639 inta = iwl_read32(priv, CSR_INT);
3640 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3641 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3642 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
3643 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
3646 spin_unlock_irqrestore(&priv->lock, flags);
3649 static irqreturn_t iwl3945_isr(int irq, void *data)
3651 struct iwl_priv *priv = data;
3652 u32 inta, inta_mask;
3657 spin_lock(&priv->lock);
3659 /* Disable (but don't clear!) interrupts here to avoid
3660 * back-to-back ISRs and sporadic interrupts from our NIC.
3661 * If we have something to service, the tasklet will re-enable ints.
3662 * If we *don't* have something, we'll re-enable before leaving here. */
3663 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
3664 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
3666 /* Discover which interrupts are active/pending */
3667 inta = iwl_read32(priv, CSR_INT);
3668 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3670 /* Ignore interrupt if there's nothing in NIC to service.
3671 * This may be due to IRQ shared with another device,
3672 * or due to sporadic interrupts thrown from our NIC. */
3673 if (!inta && !inta_fh) {
3674 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
3678 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
3679 /* Hardware disappeared */
3680 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
3684 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3685 inta, inta_mask, inta_fh);
3687 inta &= ~CSR_INT_BIT_SCD;
3689 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
3690 if (likely(inta || inta_fh))
3691 tasklet_schedule(&priv->irq_tasklet);
3693 spin_unlock(&priv->lock);
3698 /* re-enable interrupts here since we don't have anything to service. */
3699 /* only Re-enable if disabled by irq */
3700 if (test_bit(STATUS_INT_ENABLED, &priv->status))
3701 iwl3945_enable_interrupts(priv);
3702 spin_unlock(&priv->lock);
3706 /************************** EEPROM BANDS ****************************
3708 * The iwl3945_eeprom_band definitions below provide the mapping from the
3709 * EEPROM contents to the specific channel number supported for each
3712 * For example, iwl3945_priv->eeprom39.band_3_channels[4] from the band_3
3713 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
3714 * The specific geography and calibration information for that channel
3715 * is contained in the eeprom map itself.
3717 * During init, we copy the eeprom information and channel map
3718 * information into priv->channel_info_24/52 and priv->channel_map_24/52
3720 * channel_map_24/52 provides the index in the channel_info array for a
3721 * given channel. We have to have two separate maps as there is channel
3722 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
3725 * A value of 0xff stored in the channel_map indicates that the channel
3726 * is not supported by the hardware at all.
3728 * A value of 0xfe in the channel_map indicates that the channel is not
3729 * valid for Tx with the current hardware. This means that
3730 * while the system can tune and receive on a given channel, it may not
3731 * be able to associate or transmit any frames on that
3732 * channel. There is no corresponding channel information for that
3735 *********************************************************************/
3738 static const u8 iwl3945_eeprom_band_1[14] = {
3739 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
3743 static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */
3744 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
3747 static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */
3748 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
3751 static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */
3752 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
3755 static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */
3756 145, 149, 153, 157, 161, 165
3759 static void iwl3945_init_band_reference(const struct iwl_priv *priv, int band,
3760 int *eeprom_ch_count,
3761 const struct iwl_eeprom_channel
3763 const u8 **eeprom_ch_index)
3766 case 1: /* 2.4GHz band */
3767 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1);
3768 *eeprom_ch_info = priv->eeprom39.band_1_channels;
3769 *eeprom_ch_index = iwl3945_eeprom_band_1;
3771 case 2: /* 4.9GHz band */
3772 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2);
3773 *eeprom_ch_info = priv->eeprom39.band_2_channels;
3774 *eeprom_ch_index = iwl3945_eeprom_band_2;
3776 case 3: /* 5.2GHz band */
3777 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3);
3778 *eeprom_ch_info = priv->eeprom39.band_3_channels;
3779 *eeprom_ch_index = iwl3945_eeprom_band_3;
3781 case 4: /* 5.5GHz band */
3782 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4);
3783 *eeprom_ch_info = priv->eeprom39.band_4_channels;
3784 *eeprom_ch_index = iwl3945_eeprom_band_4;
3786 case 5: /* 5.7GHz band */
3787 *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5);
3788 *eeprom_ch_info = priv->eeprom39.band_5_channels;
3789 *eeprom_ch_index = iwl3945_eeprom_band_5;
3798 * iwl3945_get_channel_info - Find driver's private channel info
3800 * Based on band and channel number.
3802 const struct iwl_channel_info *
3803 iwl3945_get_channel_info(const struct iwl_priv *priv,
3804 enum ieee80211_band band, u16 channel)
3809 case IEEE80211_BAND_5GHZ:
3810 for (i = 14; i < priv->channel_count; i++) {
3811 if (priv->channel_info[i].channel == channel)
3812 return &priv->channel_info[i];
3816 case IEEE80211_BAND_2GHZ:
3817 if (channel >= 1 && channel <= 14)
3818 return &priv->channel_info[channel - 1];
3820 case IEEE80211_NUM_BANDS:
3827 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
3831 * iwl3945_init_channel_map - Set up driver's info for all possible channels
3833 static int iwl3945_init_channel_map(struct iwl_priv *priv)
3835 int eeprom_ch_count = 0;
3836 const u8 *eeprom_ch_index = NULL;
3837 const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
3839 struct iwl_channel_info *ch_info;
3841 if (priv->channel_count) {
3842 IWL_DEBUG_INFO("Channel map already initialized.\n");
3846 if (priv->eeprom39.version < 0x2f) {
3847 IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
3848 priv->eeprom39.version);
3852 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
3854 priv->channel_count =
3855 ARRAY_SIZE(iwl3945_eeprom_band_1) +
3856 ARRAY_SIZE(iwl3945_eeprom_band_2) +
3857 ARRAY_SIZE(iwl3945_eeprom_band_3) +
3858 ARRAY_SIZE(iwl3945_eeprom_band_4) +
3859 ARRAY_SIZE(iwl3945_eeprom_band_5);
3861 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
3863 priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
3864 priv->channel_count, GFP_KERNEL);
3865 if (!priv->channel_info) {
3866 IWL_ERR(priv, "Could not allocate channel_info\n");
3867 priv->channel_count = 0;
3871 ch_info = priv->channel_info;
3873 /* Loop through the 5 EEPROM bands adding them in order to the
3874 * channel map we maintain (that contains additional information than
3875 * what just in the EEPROM) */
3876 for (band = 1; band <= 5; band++) {
3878 iwl3945_init_band_reference(priv, band, &eeprom_ch_count,
3879 &eeprom_ch_info, &eeprom_ch_index);
3881 /* Loop through each band adding each of the channels */
3882 for (ch = 0; ch < eeprom_ch_count; ch++) {
3883 ch_info->channel = eeprom_ch_index[ch];
3884 ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
3885 IEEE80211_BAND_5GHZ;
3887 /* permanently store EEPROM's channel regulatory flags
3888 * and max power in channel info database. */
3889 ch_info->eeprom = eeprom_ch_info[ch];
3891 /* Copy the run-time flags so they are there even on
3892 * invalid channels */
3893 ch_info->flags = eeprom_ch_info[ch].flags;
3895 if (!(is_channel_valid(ch_info))) {
3896 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
3900 is_channel_a_band(ch_info) ?
3906 /* Initialize regulatory-based run-time data */
3907 ch_info->max_power_avg = ch_info->curr_txpow =
3908 eeprom_ch_info[ch].max_power_avg;
3909 ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
3910 ch_info->min_power = 0;
3912 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
3913 " %ddBm): Ad-Hoc %ssupported\n",
3915 is_channel_a_band(ch_info) ?
3917 CHECK_AND_PRINT(VALID),
3918 CHECK_AND_PRINT(IBSS),
3919 CHECK_AND_PRINT(ACTIVE),
3920 CHECK_AND_PRINT(RADAR),
3921 CHECK_AND_PRINT(WIDE),
3922 CHECK_AND_PRINT(DFS),
3923 eeprom_ch_info[ch].flags,
3924 eeprom_ch_info[ch].max_power_avg,
3925 ((eeprom_ch_info[ch].
3926 flags & EEPROM_CHANNEL_IBSS)
3927 && !(eeprom_ch_info[ch].
3928 flags & EEPROM_CHANNEL_RADAR))
3931 /* Set the tx_power_user_lmt to the highest power
3932 * supported by any channel */
3933 if (eeprom_ch_info[ch].max_power_avg >
3934 priv->tx_power_user_lmt)
3935 priv->tx_power_user_lmt =
3936 eeprom_ch_info[ch].max_power_avg;
3942 /* Set up txpower settings in driver for all channels */
3943 if (iwl3945_txpower_set_from_eeprom(priv))
3950 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
3952 static void iwl3945_free_channel_map(struct iwl_priv *priv)
3954 kfree(priv->channel_info);
3955 priv->channel_count = 0;
3958 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
3959 * sending probe req. This should be set long enough to hear probe responses
3960 * from more than one AP. */
3961 #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
3962 #define IWL_ACTIVE_DWELL_TIME_52 (20)
3964 #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
3965 #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
3967 /* For faster active scanning, scan will move to the next channel if fewer than
3968 * PLCP_QUIET_THRESH packets are heard on this channel within
3969 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
3970 * time if it's a quiet channel (nothing responded to our probe, and there's
3971 * no other traffic).
3972 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
3973 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
3974 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
3976 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
3977 * Must be set longer than active dwell time.
3978 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
3979 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
3980 #define IWL_PASSIVE_DWELL_TIME_52 (10)
3981 #define IWL_PASSIVE_DWELL_BASE (100)
3982 #define IWL_CHANNEL_TUNE_TIME 5
3984 #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1)))
3986 static inline u16 iwl3945_get_active_dwell_time(struct iwl_priv *priv,
3987 enum ieee80211_band band,
3990 if (band == IEEE80211_BAND_5GHZ)
3991 return IWL_ACTIVE_DWELL_TIME_52 +
3992 IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
3994 return IWL_ACTIVE_DWELL_TIME_24 +
3995 IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
3998 static u16 iwl3945_get_passive_dwell_time(struct iwl_priv *priv,
3999 enum ieee80211_band band)
4001 u16 passive = (band == IEEE80211_BAND_2GHZ) ?
4002 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
4003 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
4005 if (iwl3945_is_associated(priv)) {
4006 /* If we're associated, we clamp the maximum passive
4007 * dwell time to be 98% of the beacon interval (minus
4008 * 2 * channel tune time) */
4009 passive = priv->beacon_int;
4010 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
4011 passive = IWL_PASSIVE_DWELL_BASE;
4012 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
4018 static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
4019 enum ieee80211_band band,
4020 u8 is_active, u8 n_probes,
4021 struct iwl3945_scan_channel *scan_ch)
4023 const struct ieee80211_channel *channels = NULL;
4024 const struct ieee80211_supported_band *sband;
4025 const struct iwl_channel_info *ch_info;
4026 u16 passive_dwell = 0;
4027 u16 active_dwell = 0;
4030 sband = iwl_get_hw_mode(priv, band);
4034 channels = sband->channels;
4036 active_dwell = iwl3945_get_active_dwell_time(priv, band, n_probes);
4037 passive_dwell = iwl3945_get_passive_dwell_time(priv, band);
4039 if (passive_dwell <= active_dwell)
4040 passive_dwell = active_dwell + 1;
4042 for (i = 0, added = 0; i < sband->n_channels; i++) {
4043 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
4046 scan_ch->channel = channels[i].hw_value;
4048 ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel);
4049 if (!is_channel_valid(ch_info)) {
4050 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4055 scan_ch->active_dwell = cpu_to_le16(active_dwell);
4056 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
4057 /* If passive , set up for auto-switch
4058 * and use long active_dwell time.
4060 if (!is_active || is_channel_passive(ch_info) ||
4061 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
4062 scan_ch->type = 0; /* passive */
4063 if (IWL_UCODE_API(priv->ucode_ver) == 1)
4064 scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
4066 scan_ch->type = 1; /* active */
4069 /* Set direct probe bits. These may be used both for active
4070 * scan channels (probes gets sent right away),
4071 * or for passive channels (probes get se sent only after
4072 * hearing clear Rx packet).*/
4073 if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
4075 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4077 /* uCode v1 does not allow setting direct probe bits on
4078 * passive channel. */
4079 if ((scan_ch->type & 1) && n_probes)
4080 scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
4083 /* Set txpower levels to defaults */
4084 scan_ch->tpc.dsp_atten = 110;
4085 /* scan_pwr_info->tpc.dsp_atten; */
4087 /*scan_pwr_info->tpc.tx_gain; */
4088 if (band == IEEE80211_BAND_5GHZ)
4089 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
4091 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
4092 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4094 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4098 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4100 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
4101 (scan_ch->type & 1) ?
4102 active_dwell : passive_dwell);
4108 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
4112 static void iwl3945_init_hw_rates(struct iwl_priv *priv,
4113 struct ieee80211_rate *rates)
4117 for (i = 0; i < IWL_RATE_COUNT; i++) {
4118 rates[i].bitrate = iwl3945_rates[i].ieee * 5;
4119 rates[i].hw_value = i; /* Rate scaling will work on indexes */
4120 rates[i].hw_value_short = i;
4122 if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
4124 * If CCK != 1M then set short preamble rate flag.
4126 rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
4127 0 : IEEE80211_RATE_SHORT_PREAMBLE;
4133 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4135 static int iwl3945_init_geos(struct iwl_priv *priv)
4137 struct iwl_channel_info *ch;
4138 struct ieee80211_supported_band *sband;
4139 struct ieee80211_channel *channels;
4140 struct ieee80211_channel *geo_ch;
4141 struct ieee80211_rate *rates;
4144 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
4145 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
4146 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4147 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4151 channels = kzalloc(sizeof(struct ieee80211_channel) *
4152 priv->channel_count, GFP_KERNEL);
4156 rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
4163 /* 5.2GHz channels start after the 2.4GHz channels */
4164 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4165 sband->channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)];
4167 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
4168 sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
4170 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4171 sband->channels = channels;
4173 sband->bitrates = rates;
4174 sband->n_bitrates = IWL_RATE_COUNT;
4176 priv->ieee_channels = channels;
4177 priv->ieee_rates = rates;
4179 iwl3945_init_hw_rates(priv, rates);
4181 for (i = 0; i < priv->channel_count; i++) {
4182 ch = &priv->channel_info[i];
4184 /* FIXME: might be removed if scan is OK*/
4185 if (!is_channel_valid(ch))
4188 if (is_channel_a_band(ch))
4189 sband = &priv->bands[IEEE80211_BAND_5GHZ];
4191 sband = &priv->bands[IEEE80211_BAND_2GHZ];
4193 geo_ch = &sband->channels[sband->n_channels++];
4195 geo_ch->center_freq = ieee80211_channel_to_frequency(ch->channel);
4196 geo_ch->max_power = ch->max_power_avg;
4197 geo_ch->max_antenna_gain = 0xff;
4198 geo_ch->hw_value = ch->channel;
4200 if (is_channel_valid(ch)) {
4201 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
4202 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
4204 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
4205 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
4207 if (ch->flags & EEPROM_CHANNEL_RADAR)
4208 geo_ch->flags |= IEEE80211_CHAN_RADAR;
4210 if (ch->max_power_avg > priv->tx_power_channel_lmt)
4211 priv->tx_power_channel_lmt =
4214 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
4217 /* Save flags for reg domain usage */
4218 geo_ch->orig_flags = geo_ch->flags;
4220 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4221 ch->channel, geo_ch->center_freq,
4222 is_channel_a_band(ch) ? "5.2" : "2.4",
4223 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
4224 "restricted" : "valid",
4228 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
4229 priv->cfg->sku & IWL_SKU_A) {
4230 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
4231 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
4232 priv->pci_dev->device, priv->pci_dev->subsystem_device);
4233 priv->cfg->sku &= ~IWL_SKU_A;
4236 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4237 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
4238 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
4240 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
4241 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4242 &priv->bands[IEEE80211_BAND_2GHZ];
4243 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
4244 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4245 &priv->bands[IEEE80211_BAND_5GHZ];
4247 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
4253 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
4255 static void iwl3945_free_geos(struct iwl_priv *priv)
4257 kfree(priv->ieee_channels);
4258 kfree(priv->ieee_rates);
4259 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
4262 /******************************************************************************
4264 * uCode download functions
4266 ******************************************************************************/
4268 static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
4270 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
4271 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
4272 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4273 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
4274 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4275 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
4279 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
4280 * looking at all data.
4282 static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
4289 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4291 rc = iwl_grab_nic_access(priv);
4295 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4296 IWL39_RTC_INST_LOWER_BOUND);
4299 for (; len > 0; len -= sizeof(u32), image++) {
4300 /* read data comes through single port, auto-incr addr */
4301 /* NOTE: Use the debugless read so we don't flood kernel log
4302 * if IWL_DL_IO is set */
4303 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4304 if (val != le32_to_cpu(*image)) {
4305 IWL_ERR(priv, "uCode INST section is invalid at "
4306 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4307 save_len - len, val, le32_to_cpu(*image));
4315 iwl_release_nic_access(priv);
4318 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
4325 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
4326 * using sample data 100 bytes apart. If these sample points are good,
4327 * it's a pretty good bet that everything between them is good, too.
4329 static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
4336 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
4338 rc = iwl_grab_nic_access(priv);
4342 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
4343 /* read data comes through single port, auto-incr addr */
4344 /* NOTE: Use the debugless read so we don't flood kernel log
4345 * if IWL_DL_IO is set */
4346 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
4347 i + IWL39_RTC_INST_LOWER_BOUND);
4348 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
4349 if (val != le32_to_cpu(*image)) {
4350 #if 0 /* Enable this if you want to see details */
4351 IWL_ERR(priv, "uCode INST section is invalid at "
4352 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4362 iwl_release_nic_access(priv);
4369 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
4370 * and verify its contents
4372 static int iwl3945_verify_ucode(struct iwl_priv *priv)
4379 image = (__le32 *)priv->ucode_boot.v_addr;
4380 len = priv->ucode_boot.len;
4381 rc = iwl3945_verify_inst_sparse(priv, image, len);
4383 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
4387 /* Try initialize */
4388 image = (__le32 *)priv->ucode_init.v_addr;
4389 len = priv->ucode_init.len;
4390 rc = iwl3945_verify_inst_sparse(priv, image, len);
4392 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
4396 /* Try runtime/protocol */
4397 image = (__le32 *)priv->ucode_code.v_addr;
4398 len = priv->ucode_code.len;
4399 rc = iwl3945_verify_inst_sparse(priv, image, len);
4401 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
4405 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
4407 /* Since nothing seems to match, show first several data entries in
4408 * instruction SRAM, so maybe visual inspection will give a clue.
4409 * Selection of bootstrap image (vs. other images) is arbitrary. */
4410 image = (__le32 *)priv->ucode_boot.v_addr;
4411 len = priv->ucode_boot.len;
4412 rc = iwl3945_verify_inst_full(priv, image, len);
4417 static void iwl3945_nic_start(struct iwl_priv *priv)
4419 /* Remove all resets to allow NIC to operate */
4420 iwl_write32(priv, CSR_RESET, 0);
4424 * iwl3945_read_ucode - Read uCode images from disk file.
4426 * Copy into buffers for card to fetch via bus-mastering
4428 static int iwl3945_read_ucode(struct iwl_priv *priv)
4430 struct iwl_ucode *ucode;
4431 int ret = -EINVAL, index;
4432 const struct firmware *ucode_raw;
4433 /* firmware file name contains uCode/driver compatibility version */
4434 const char *name_pre = priv->cfg->fw_name_pre;
4435 const unsigned int api_max = priv->cfg->ucode_api_max;
4436 const unsigned int api_min = priv->cfg->ucode_api_min;
4440 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
4442 /* Ask kernel firmware_class module to get the boot firmware off disk.
4443 * request_firmware() is synchronous, file is in memory on return. */
4444 for (index = api_max; index >= api_min; index--) {
4445 sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
4446 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
4448 IWL_ERR(priv, "%s firmware file req failed: %d\n",
4455 if (index < api_max)
4456 IWL_ERR(priv, "Loaded firmware %s, "
4457 "which is deprecated. "
4458 " Please use API v%u instead.\n",
4460 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
4461 buf, ucode_raw->size);
4469 /* Make sure that we got at least our header! */
4470 if (ucode_raw->size < sizeof(*ucode)) {
4471 IWL_ERR(priv, "File size way too small!\n");
4476 /* Data from ucode file: header followed by uCode images */
4477 ucode = (void *)ucode_raw->data;
4479 priv->ucode_ver = le32_to_cpu(ucode->ver);
4480 api_ver = IWL_UCODE_API(priv->ucode_ver);
4481 inst_size = le32_to_cpu(ucode->inst_size);
4482 data_size = le32_to_cpu(ucode->data_size);
4483 init_size = le32_to_cpu(ucode->init_size);
4484 init_data_size = le32_to_cpu(ucode->init_data_size);
4485 boot_size = le32_to_cpu(ucode->boot_size);
4487 /* api_ver should match the api version forming part of the
4488 * firmware filename ... but we don't check for that and only rely
4489 * on the API version read from firware header from here on forward */
4491 if (api_ver < api_min || api_ver > api_max) {
4492 IWL_ERR(priv, "Driver unable to support your firmware API. "
4493 "Driver supports v%u, firmware is v%u.\n",
4495 priv->ucode_ver = 0;
4499 if (api_ver != api_max)
4500 IWL_ERR(priv, "Firmware has old API version. Expected %u, "
4501 "got %u. New firmware can be obtained "
4502 "from http://www.intellinuxwireless.org.\n",
4505 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
4506 IWL_UCODE_MAJOR(priv->ucode_ver),
4507 IWL_UCODE_MINOR(priv->ucode_ver),
4508 IWL_UCODE_API(priv->ucode_ver),
4509 IWL_UCODE_SERIAL(priv->ucode_ver));
4511 IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
4513 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
4514 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size);
4515 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size);
4516 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size);
4517 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size);
4520 /* Verify size of file vs. image size info in file's header */
4521 if (ucode_raw->size < sizeof(*ucode) +
4522 inst_size + data_size + init_size +
4523 init_data_size + boot_size) {
4525 IWL_DEBUG_INFO("uCode file size %d too small\n",
4526 (int)ucode_raw->size);
4531 /* Verify that uCode images will fit in card's SRAM */
4532 if (inst_size > IWL39_MAX_INST_SIZE) {
4533 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
4539 if (data_size > IWL39_MAX_DATA_SIZE) {
4540 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
4545 if (init_size > IWL39_MAX_INST_SIZE) {
4546 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
4551 if (init_data_size > IWL39_MAX_DATA_SIZE) {
4552 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
4557 if (boot_size > IWL39_MAX_BSM_SIZE) {
4558 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
4564 /* Allocate ucode buffers for card's bus-master loading ... */
4566 /* Runtime instructions and 2 copies of data:
4567 * 1) unmodified from disk
4568 * 2) backup cache for save/restore during power-downs */
4569 priv->ucode_code.len = inst_size;
4570 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
4572 priv->ucode_data.len = data_size;
4573 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
4575 priv->ucode_data_backup.len = data_size;
4576 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
4578 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
4579 !priv->ucode_data_backup.v_addr)
4582 /* Initialization instructions and data */
4583 if (init_size && init_data_size) {
4584 priv->ucode_init.len = init_size;
4585 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
4587 priv->ucode_init_data.len = init_data_size;
4588 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
4590 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
4594 /* Bootstrap (instructions only, no data) */
4596 priv->ucode_boot.len = boot_size;
4597 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
4599 if (!priv->ucode_boot.v_addr)
4603 /* Copy images into buffers for card's bus-master reads ... */
4605 /* Runtime instructions (first block of data in file) */
4606 src = &ucode->data[0];
4607 len = priv->ucode_code.len;
4608 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
4609 memcpy(priv->ucode_code.v_addr, src, len);
4610 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
4611 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
4613 /* Runtime data (2nd block)
4614 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
4615 src = &ucode->data[inst_size];
4616 len = priv->ucode_data.len;
4617 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
4618 memcpy(priv->ucode_data.v_addr, src, len);
4619 memcpy(priv->ucode_data_backup.v_addr, src, len);
4621 /* Initialization instructions (3rd block) */
4623 src = &ucode->data[inst_size + data_size];
4624 len = priv->ucode_init.len;
4625 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
4627 memcpy(priv->ucode_init.v_addr, src, len);
4630 /* Initialization data (4th block) */
4631 if (init_data_size) {
4632 src = &ucode->data[inst_size + data_size + init_size];
4633 len = priv->ucode_init_data.len;
4634 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
4636 memcpy(priv->ucode_init_data.v_addr, src, len);
4639 /* Bootstrap instructions (5th block) */
4640 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
4641 len = priv->ucode_boot.len;
4642 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
4644 memcpy(priv->ucode_boot.v_addr, src, len);
4646 /* We have our copies now, allow OS release its copies */
4647 release_firmware(ucode_raw);
4651 IWL_ERR(priv, "failed to allocate pci memory\n");
4653 iwl3945_dealloc_ucode_pci(priv);
4656 release_firmware(ucode_raw);
4664 * iwl3945_set_ucode_ptrs - Set uCode address location
4666 * Tell initialization uCode where to find runtime uCode.
4668 * BSM registers initially contain pointers to initialization uCode.
4669 * We need to replace them to load runtime uCode inst and data,
4670 * and to save runtime data when powering down.
4672 static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
4677 unsigned long flags;
4679 /* bits 31:0 for 3945 */
4680 pinst = priv->ucode_code.p_addr;
4681 pdata = priv->ucode_data_backup.p_addr;
4683 spin_lock_irqsave(&priv->lock, flags);
4684 rc = iwl_grab_nic_access(priv);
4686 spin_unlock_irqrestore(&priv->lock, flags);
4690 /* Tell bootstrap uCode where to find image to load */
4691 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
4692 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
4693 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
4694 priv->ucode_data.len);
4696 /* Inst byte count must be last to set up, bit 31 signals uCode
4697 * that all new ptr/size info is in place */
4698 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
4699 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
4701 iwl_release_nic_access(priv);
4703 spin_unlock_irqrestore(&priv->lock, flags);
4705 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
4711 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
4713 * Called after REPLY_ALIVE notification received from "initialize" uCode.
4715 * Tell "initialize" uCode to go ahead and load the runtime uCode.
4717 static void iwl3945_init_alive_start(struct iwl_priv *priv)
4719 /* Check alive response for "valid" sign from uCode */
4720 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
4721 /* We had an error bringing up the hardware, so take it
4722 * all the way back down so we can try again */
4723 IWL_DEBUG_INFO("Initialize Alive failed.\n");
4727 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
4728 * This is a paranoid check, because we would not have gotten the
4729 * "initialize" alive if code weren't properly loaded. */
4730 if (iwl3945_verify_ucode(priv)) {
4731 /* Runtime instruction load was bad;
4732 * take it all the way back down so we can try again */
4733 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
4737 /* Send pointers to protocol/runtime uCode image ... init code will
4738 * load and launch runtime uCode, which will send us another "Alive"
4740 IWL_DEBUG_INFO("Initialization Alive received.\n");
4741 if (iwl3945_set_ucode_ptrs(priv)) {
4742 /* Runtime instruction load won't happen;
4743 * take it all the way back down so we can try again */
4744 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
4750 queue_work(priv->workqueue, &priv->restart);
4755 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw,
4756 struct sk_buff *skb);
4759 * iwl3945_alive_start - called after REPLY_ALIVE notification received
4760 * from protocol/runtime uCode (initialization uCode's
4761 * Alive gets handled by iwl3945_init_alive_start()).
4763 static void iwl3945_alive_start(struct iwl_priv *priv)
4766 int thermal_spin = 0;
4769 IWL_DEBUG_INFO("Runtime Alive received.\n");
4771 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
4772 /* We had an error bringing up the hardware, so take it
4773 * all the way back down so we can try again */
4774 IWL_DEBUG_INFO("Alive failed.\n");
4778 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
4779 * This is a paranoid check, because we would not have gotten the
4780 * "runtime" alive if code weren't properly loaded. */
4781 if (iwl3945_verify_ucode(priv)) {
4782 /* Runtime instruction load was bad;
4783 * take it all the way back down so we can try again */
4784 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
4788 iwl3945_clear_stations_table(priv);
4790 rc = iwl_grab_nic_access(priv);
4792 IWL_WARN(priv, "Can not read RFKILL status from adapter\n");
4796 rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
4797 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
4798 iwl_release_nic_access(priv);
4801 clear_bit(STATUS_RF_KILL_HW, &priv->status);
4802 /* if RFKILL is not on, then wait for thermal
4803 * sensor in adapter to kick in */
4804 while (iwl3945_hw_get_temperature(priv) == 0) {
4810 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
4813 set_bit(STATUS_RF_KILL_HW, &priv->status);
4815 /* After the ALIVE response, we can send commands to 3945 uCode */
4816 set_bit(STATUS_ALIVE, &priv->status);
4818 /* Clear out the uCode error bit if it is set */
4819 clear_bit(STATUS_FW_ERROR, &priv->status);
4821 if (iwl_is_rfkill(priv))
4824 ieee80211_wake_queues(priv->hw);
4826 priv->active_rate = priv->rates_mask;
4827 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
4829 iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
4831 if (iwl3945_is_associated(priv)) {
4832 struct iwl3945_rxon_cmd *active_rxon =
4833 (struct iwl3945_rxon_cmd *)(&priv->active39_rxon);
4835 memcpy(&priv->staging39_rxon, &priv->active39_rxon,
4836 sizeof(priv->staging39_rxon));
4837 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4839 /* Initialize our rx_config data */
4840 iwl3945_connection_init_rx_config(priv, priv->iw_mode);
4841 memcpy(priv->staging39_rxon.node_addr, priv->mac_addr, ETH_ALEN);
4844 /* Configure Bluetooth device coexistence support */
4845 iwl3945_send_bt_config(priv);
4847 /* Configure the adapter for unassociated operation */
4848 iwl3945_commit_rxon(priv);
4850 iwl3945_reg_txpower_periodic(priv);
4852 iwl3945_led_register(priv);
4854 IWL_DEBUG_INFO("ALIVE processing complete.\n");
4855 set_bit(STATUS_READY, &priv->status);
4856 wake_up_interruptible(&priv->wait_command_queue);
4858 if (priv->error_recovering)
4859 iwl3945_error_recovery(priv);
4861 /* reassociate for ADHOC mode */
4862 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
4863 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
4866 iwl3945_mac_beacon_update(priv->hw, beacon);
4872 queue_work(priv->workqueue, &priv->restart);
4875 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
4877 static void __iwl3945_down(struct iwl_priv *priv)
4879 unsigned long flags;
4880 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
4881 struct ieee80211_conf *conf = NULL;
4883 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
4885 conf = ieee80211_get_hw_conf(priv->hw);
4888 set_bit(STATUS_EXIT_PENDING, &priv->status);
4890 iwl3945_led_unregister(priv);
4891 iwl3945_clear_stations_table(priv);
4893 /* Unblock any waiting calls */
4894 wake_up_interruptible_all(&priv->wait_command_queue);
4896 /* Wipe out the EXIT_PENDING status bit if we are not actually
4897 * exiting the module */
4899 clear_bit(STATUS_EXIT_PENDING, &priv->status);
4901 /* stop and reset the on-board processor */
4902 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
4904 /* tell the device to stop sending interrupts */
4905 spin_lock_irqsave(&priv->lock, flags);
4906 iwl3945_disable_interrupts(priv);
4907 spin_unlock_irqrestore(&priv->lock, flags);
4908 iwl_synchronize_irq(priv);
4910 if (priv->mac80211_registered)
4911 ieee80211_stop_queues(priv->hw);
4913 /* If we have not previously called iwl3945_init() then
4914 * clear all bits but the RF Kill and SUSPEND bits and return */
4915 if (!iwl_is_init(priv)) {
4916 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
4918 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
4920 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
4921 STATUS_GEO_CONFIGURED |
4922 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
4924 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
4925 STATUS_EXIT_PENDING;
4929 /* ...otherwise clear out all the status bits but the RF Kill and
4930 * SUSPEND bits and continue taking the NIC down. */
4931 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
4933 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
4935 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
4936 STATUS_GEO_CONFIGURED |
4937 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
4939 test_bit(STATUS_FW_ERROR, &priv->status) <<
4941 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
4942 STATUS_EXIT_PENDING;
4944 spin_lock_irqsave(&priv->lock, flags);
4945 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
4946 spin_unlock_irqrestore(&priv->lock, flags);
4948 iwl3945_hw_txq_ctx_stop(priv);
4949 iwl3945_hw_rxq_stop(priv);
4951 spin_lock_irqsave(&priv->lock, flags);
4952 if (!iwl_grab_nic_access(priv)) {
4953 iwl_write_prph(priv, APMG_CLK_DIS_REG,
4954 APMG_CLK_VAL_DMA_CLK_RQT);
4955 iwl_release_nic_access(priv);
4957 spin_unlock_irqrestore(&priv->lock, flags);
4961 priv->cfg->ops->lib->apm_ops.reset(priv);
4963 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
4965 if (priv->ibss_beacon)
4966 dev_kfree_skb(priv->ibss_beacon);
4967 priv->ibss_beacon = NULL;
4969 /* clear out any free frames */
4970 iwl3945_clear_free_frames(priv);
4973 static void iwl3945_down(struct iwl_priv *priv)
4975 mutex_lock(&priv->mutex);
4976 __iwl3945_down(priv);
4977 mutex_unlock(&priv->mutex);
4979 iwl3945_cancel_deferred_work(priv);
4982 #define MAX_HW_RESTARTS 5
4984 static int __iwl3945_up(struct iwl_priv *priv)
4988 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
4989 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
4993 if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
4994 IWL_WARN(priv, "Radio disabled by SW RF kill (module "
4999 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
5000 IWL_ERR(priv, "ucode not available for device bring up\n");
5004 /* If platform's RF_KILL switch is NOT set to KILL */
5005 if (iwl_read32(priv, CSR_GP_CNTRL) &
5006 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
5007 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5009 set_bit(STATUS_RF_KILL_HW, &priv->status);
5010 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
5011 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
5016 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5018 rc = iwl3945_hw_nic_init(priv);
5020 IWL_ERR(priv, "Unable to int nic\n");
5024 /* make sure rfkill handshake bits are cleared */
5025 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5026 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
5027 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
5029 /* clear (again), then enable host interrupts */
5030 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
5031 iwl3945_enable_interrupts(priv);
5033 /* really make sure rfkill handshake bits are cleared */
5034 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5035 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
5037 /* Copy original ucode data image from disk into backup cache.
5038 * This will be used to initialize the on-board processor's
5039 * data SRAM for a clean start when the runtime program first loads. */
5040 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
5041 priv->ucode_data.len);
5043 /* We return success when we resume from suspend and rf_kill is on. */
5044 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
5047 for (i = 0; i < MAX_HW_RESTARTS; i++) {
5049 iwl3945_clear_stations_table(priv);
5051 /* load bootstrap state machine,
5052 * load bootstrap program into processor's memory,
5053 * prepare to load the "initialize" uCode */
5054 priv->cfg->ops->lib->load_ucode(priv);
5058 "Unable to set up bootstrap uCode: %d\n", rc);
5062 /* start card; "initialize" will load runtime ucode */
5063 iwl3945_nic_start(priv);
5065 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
5070 set_bit(STATUS_EXIT_PENDING, &priv->status);
5071 __iwl3945_down(priv);
5072 clear_bit(STATUS_EXIT_PENDING, &priv->status);
5074 /* tried to restart and config the device for as long as our
5075 * patience could withstand */
5076 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
5081 /*****************************************************************************
5083 * Workqueue callbacks
5085 *****************************************************************************/
5087 static void iwl3945_bg_init_alive_start(struct work_struct *data)
5089 struct iwl_priv *priv =
5090 container_of(data, struct iwl_priv, init_alive_start.work);
5092 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5095 mutex_lock(&priv->mutex);
5096 iwl3945_init_alive_start(priv);
5097 mutex_unlock(&priv->mutex);
5100 static void iwl3945_bg_alive_start(struct work_struct *data)
5102 struct iwl_priv *priv =
5103 container_of(data, struct iwl_priv, alive_start.work);
5105 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5108 mutex_lock(&priv->mutex);
5109 iwl3945_alive_start(priv);
5110 mutex_unlock(&priv->mutex);
5113 static void iwl3945_rfkill_poll(struct work_struct *data)
5115 struct iwl_priv *priv =
5116 container_of(data, struct iwl_priv, rfkill_poll.work);
5117 unsigned long status = priv->status;
5119 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
5120 clear_bit(STATUS_RF_KILL_HW, &priv->status);
5122 set_bit(STATUS_RF_KILL_HW, &priv->status);
5124 if (test_bit(STATUS_RF_KILL_HW, &status) != test_bit(STATUS_RF_KILL_HW, &priv->status))
5125 queue_work(priv->workqueue, &priv->rf_kill);
5127 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
5128 round_jiffies_relative(2 * HZ));
5132 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5134 static void iwl3945_bg_scan_check(struct work_struct *data)
5136 struct iwl_priv *priv =
5137 container_of(data, struct iwl_priv, scan_check.work);
5139 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5142 mutex_lock(&priv->mutex);
5143 if (test_bit(STATUS_SCANNING, &priv->status) ||
5144 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5145 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
5146 "Scan completion watchdog resetting adapter (%dms)\n",
5147 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
5149 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
5150 iwl3945_send_scan_abort(priv);
5152 mutex_unlock(&priv->mutex);
5155 static void iwl3945_bg_request_scan(struct work_struct *data)
5157 struct iwl_priv *priv =
5158 container_of(data, struct iwl_priv, request_scan);
5159 struct iwl_host_cmd cmd = {
5160 .id = REPLY_SCAN_CMD,
5161 .len = sizeof(struct iwl3945_scan_cmd),
5162 .meta.flags = CMD_SIZE_HUGE,
5165 struct iwl3945_scan_cmd *scan;
5166 struct ieee80211_conf *conf = NULL;
5168 enum ieee80211_band band;
5169 DECLARE_SSID_BUF(ssid);
5171 conf = ieee80211_get_hw_conf(priv->hw);
5173 mutex_lock(&priv->mutex);
5175 if (!iwl_is_ready(priv)) {
5176 IWL_WARN(priv, "request scan called when driver not ready.\n");
5180 /* Make sure the scan wasn't canceled before this queued work
5181 * was given the chance to run... */
5182 if (!test_bit(STATUS_SCANNING, &priv->status))
5185 /* This should never be called or scheduled if there is currently
5186 * a scan active in the hardware. */
5187 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
5188 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5189 "Ignoring second request.\n");
5194 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
5195 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5199 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
5200 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5204 if (iwl_is_rfkill(priv)) {
5205 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5209 if (!test_bit(STATUS_READY, &priv->status)) {
5210 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5214 if (!priv->scan_bands) {
5215 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5220 priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) +
5221 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
5228 memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
5230 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
5231 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
5233 if (iwl3945_is_associated(priv)) {
5236 u32 suspend_time = 100;
5237 u32 scan_suspend_time = 100;
5238 unsigned long flags;
5240 IWL_DEBUG_INFO("Scanning while associated...\n");
5242 spin_lock_irqsave(&priv->lock, flags);
5243 interval = priv->beacon_int;
5244 spin_unlock_irqrestore(&priv->lock, flags);
5246 scan->suspend_time = 0;
5247 scan->max_out_time = cpu_to_le32(200 * 1024);
5249 interval = suspend_time;
5251 * suspend time format:
5252 * 0-19: beacon interval in usec (time before exec.)
5254 * 24-31: number of beacons (suspend between channels)
5257 extra = (suspend_time / interval) << 24;
5258 scan_suspend_time = 0xFF0FFFFF &
5259 (extra | ((suspend_time % interval) * 1024));
5261 scan->suspend_time = cpu_to_le32(scan_suspend_time);
5262 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5263 scan_suspend_time, interval);
5266 /* We should add the ability for user to lock to PASSIVE ONLY */
5267 if (priv->one_direct_scan) {
5269 ("Kicking off one direct scan for '%s'\n",
5270 print_ssid(ssid, priv->direct_ssid,
5271 priv->direct_ssid_len));
5272 scan->direct_scan[0].id = WLAN_EID_SSID;
5273 scan->direct_scan[0].len = priv->direct_ssid_len;
5274 memcpy(scan->direct_scan[0].ssid,
5275 priv->direct_ssid, priv->direct_ssid_len);
5278 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
5280 /* We don't build a direct scan probe request; the uCode will do
5281 * that based on the direct_mask added to each channel entry */
5282 scan->tx_cmd.len = cpu_to_le16(
5283 iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
5284 IWL_MAX_SCAN_SIZE - sizeof(*scan)));
5285 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
5286 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
5287 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
5289 /* flags + rate selection */
5291 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
5292 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
5293 scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
5294 scan->good_CRC_th = 0;
5295 band = IEEE80211_BAND_2GHZ;
5296 } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
5297 scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
5298 scan->good_CRC_th = IWL_GOOD_CRC_TH;
5299 band = IEEE80211_BAND_5GHZ;
5301 IWL_WARN(priv, "Invalid scan band count\n");
5305 /* select Rx antennas */
5306 scan->flags |= iwl3945_get_antenna_flags(priv);
5308 if (priv->iw_mode == NL80211_IFTYPE_MONITOR)
5309 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
5311 scan->channel_count =
5312 iwl3945_get_channels_for_scan(priv, band, 1, /* active */
5314 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
5316 if (scan->channel_count == 0) {
5317 IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
5321 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
5322 scan->channel_count * sizeof(struct iwl3945_scan_channel);
5324 scan->len = cpu_to_le16(cmd.len);
5326 set_bit(STATUS_SCAN_HW, &priv->status);
5327 rc = iwl_send_cmd_sync(priv, &cmd);
5331 queue_delayed_work(priv->workqueue, &priv->scan_check,
5332 IWL_SCAN_CHECK_WATCHDOG);
5334 mutex_unlock(&priv->mutex);
5338 /* can not perform scan make sure we clear scanning
5339 * bits from status so next scan request can be performed.
5340 * if we dont clear scanning status bit here all next scan
5343 clear_bit(STATUS_SCAN_HW, &priv->status);
5344 clear_bit(STATUS_SCANNING, &priv->status);
5346 /* inform mac80211 scan aborted */
5347 queue_work(priv->workqueue, &priv->scan_completed);
5348 mutex_unlock(&priv->mutex);
5351 static void iwl3945_bg_up(struct work_struct *data)
5353 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
5355 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5358 mutex_lock(&priv->mutex);
5360 mutex_unlock(&priv->mutex);
5361 iwl_rfkill_set_hw_state(priv);
5364 static void iwl3945_bg_restart(struct work_struct *data)
5366 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
5368 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5372 queue_work(priv->workqueue, &priv->up);
5375 static void iwl3945_bg_rx_replenish(struct work_struct *data)
5377 struct iwl_priv *priv =
5378 container_of(data, struct iwl_priv, rx_replenish);
5380 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5383 mutex_lock(&priv->mutex);
5384 iwl3945_rx_replenish(priv);
5385 mutex_unlock(&priv->mutex);
5388 #define IWL_DELAY_NEXT_SCAN (HZ*2)
5390 static void iwl3945_post_associate(struct iwl_priv *priv)
5393 struct ieee80211_conf *conf = NULL;
5395 if (priv->iw_mode == NL80211_IFTYPE_AP) {
5396 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
5401 IWL_DEBUG_ASSOC("Associated as %d to: %pM\n",
5402 priv->assoc_id, priv->active39_rxon.bssid_addr);
5404 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5407 if (!priv->vif || !priv->is_open)
5410 iwl_scan_cancel_timeout(priv, 200);
5412 conf = ieee80211_get_hw_conf(priv->hw);
5414 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5415 iwl3945_commit_rxon(priv);
5417 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
5418 iwl3945_setup_rxon_timing(priv);
5419 rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
5420 sizeof(priv->rxon_timing), &priv->rxon_timing);
5422 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
5423 "Attempting to continue.\n");
5425 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
5427 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
5429 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
5430 priv->assoc_id, priv->beacon_int);
5432 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
5433 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
5435 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
5437 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
5438 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
5439 priv->staging39_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
5441 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5443 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
5444 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
5448 iwl3945_commit_rxon(priv);
5450 switch (priv->iw_mode) {
5451 case NL80211_IFTYPE_STATION:
5452 iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
5455 case NL80211_IFTYPE_ADHOC:
5458 iwl3945_add_station(priv, priv->bssid, 0, 0);
5459 iwl3945_sync_sta(priv, IWL_STA_ID,
5460 (priv->band == IEEE80211_BAND_5GHZ) ?
5461 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
5463 iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
5464 iwl3945_send_beacon_cmd(priv);
5469 IWL_ERR(priv, "%s Should not be called in %d mode\n",
5470 __func__, priv->iw_mode);
5474 iwl3945_activate_qos(priv, 0);
5476 /* we have just associated, don't start scan too early */
5477 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
5480 static void iwl3945_bg_abort_scan(struct work_struct *work)
5482 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
5484 if (!iwl_is_ready(priv))
5487 mutex_lock(&priv->mutex);
5489 set_bit(STATUS_SCAN_ABORTING, &priv->status);
5490 iwl3945_send_scan_abort(priv);
5492 mutex_unlock(&priv->mutex);
5495 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
5497 static void iwl3945_bg_scan_completed(struct work_struct *work)
5499 struct iwl_priv *priv =
5500 container_of(work, struct iwl_priv, scan_completed);
5502 IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
5504 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5507 if (test_bit(STATUS_CONF_PENDING, &priv->status))
5508 iwl3945_mac_config(priv->hw, 0);
5510 ieee80211_scan_completed(priv->hw);
5512 /* Since setting the TXPOWER may have been deferred while
5513 * performing the scan, fire one off */
5514 mutex_lock(&priv->mutex);
5515 iwl3945_hw_reg_send_txpower(priv);
5516 mutex_unlock(&priv->mutex);
5519 /*****************************************************************************
5521 * mac80211 entry point functions
5523 *****************************************************************************/
5525 #define UCODE_READY_TIMEOUT (2 * HZ)
5527 static int iwl3945_mac_start(struct ieee80211_hw *hw)
5529 struct iwl_priv *priv = hw->priv;
5532 IWL_DEBUG_MAC80211("enter\n");
5534 /* we should be verifying the device is ready to be opened */
5535 mutex_lock(&priv->mutex);
5537 memset(&priv->staging39_rxon, 0, sizeof(struct iwl3945_rxon_cmd));
5538 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
5539 * ucode filename and max sizes are card-specific. */
5541 if (!priv->ucode_code.len) {
5542 ret = iwl3945_read_ucode(priv);
5544 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
5545 mutex_unlock(&priv->mutex);
5546 goto out_release_irq;
5550 ret = __iwl3945_up(priv);
5552 mutex_unlock(&priv->mutex);
5554 iwl_rfkill_set_hw_state(priv);
5557 goto out_release_irq;
5559 IWL_DEBUG_INFO("Start UP work.\n");
5561 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
5564 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
5565 * mac80211 will not be run successfully. */
5566 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
5567 test_bit(STATUS_READY, &priv->status),
5568 UCODE_READY_TIMEOUT);
5570 if (!test_bit(STATUS_READY, &priv->status)) {
5572 "Wait for START_ALIVE timeout after %dms.\n",
5573 jiffies_to_msecs(UCODE_READY_TIMEOUT));
5575 goto out_release_irq;
5579 /* ucode is running and will send rfkill notifications,
5580 * no need to poll the killswitch state anymore */
5581 cancel_delayed_work(&priv->rfkill_poll);
5584 IWL_DEBUG_MAC80211("leave\n");
5589 IWL_DEBUG_MAC80211("leave - failed\n");
5593 static void iwl3945_mac_stop(struct ieee80211_hw *hw)
5595 struct iwl_priv *priv = hw->priv;
5597 IWL_DEBUG_MAC80211("enter\n");
5599 if (!priv->is_open) {
5600 IWL_DEBUG_MAC80211("leave - skip\n");
5606 if (iwl_is_ready_rf(priv)) {
5607 /* stop mac, cancel any scan request and clear
5608 * RXON_FILTER_ASSOC_MSK BIT
5610 mutex_lock(&priv->mutex);
5611 iwl_scan_cancel_timeout(priv, 100);
5612 mutex_unlock(&priv->mutex);
5617 flush_workqueue(priv->workqueue);
5619 /* start polling the killswitch state again */
5620 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
5621 round_jiffies_relative(2 * HZ));
5623 IWL_DEBUG_MAC80211("leave\n");
5626 static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
5628 struct iwl_priv *priv = hw->priv;
5630 IWL_DEBUG_MAC80211("enter\n");
5632 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
5633 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
5635 if (iwl3945_tx_skb(priv, skb))
5636 dev_kfree_skb_any(skb);
5638 IWL_DEBUG_MAC80211("leave\n");
5639 return NETDEV_TX_OK;
5642 static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
5643 struct ieee80211_if_init_conf *conf)
5645 struct iwl_priv *priv = hw->priv;
5646 unsigned long flags;
5648 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
5651 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
5655 spin_lock_irqsave(&priv->lock, flags);
5656 priv->vif = conf->vif;
5657 priv->iw_mode = conf->type;
5659 spin_unlock_irqrestore(&priv->lock, flags);
5661 mutex_lock(&priv->mutex);
5663 if (conf->mac_addr) {
5664 IWL_DEBUG_MAC80211("Set: %pM\n", conf->mac_addr);
5665 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
5668 if (iwl_is_ready(priv))
5669 iwl3945_set_mode(priv, conf->type);
5671 mutex_unlock(&priv->mutex);
5673 IWL_DEBUG_MAC80211("leave\n");
5678 * iwl3945_mac_config - mac80211 config callback
5680 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
5681 * be set inappropriately and the driver currently sets the hardware up to
5682 * use it whenever needed.
5684 static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed)
5686 struct iwl_priv *priv = hw->priv;
5687 const struct iwl_channel_info *ch_info;
5688 struct ieee80211_conf *conf = &hw->conf;
5689 unsigned long flags;
5692 mutex_lock(&priv->mutex);
5693 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
5695 if (!iwl_is_ready(priv)) {
5696 IWL_DEBUG_MAC80211("leave - not ready\n");
5701 if (unlikely(!iwl3945_mod_params.disable_hw_scan &&
5702 test_bit(STATUS_SCANNING, &priv->status))) {
5703 IWL_DEBUG_MAC80211("leave - scanning\n");
5704 set_bit(STATUS_CONF_PENDING, &priv->status);
5705 mutex_unlock(&priv->mutex);
5709 spin_lock_irqsave(&priv->lock, flags);
5711 ch_info = iwl3945_get_channel_info(priv, conf->channel->band,
5712 conf->channel->hw_value);
5713 if (!is_channel_valid(ch_info)) {
5714 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
5715 conf->channel->hw_value, conf->channel->band);
5716 IWL_DEBUG_MAC80211("leave - invalid channel\n");
5717 spin_unlock_irqrestore(&priv->lock, flags);
5722 iwl3945_set_rxon_channel(priv, conf->channel->band, conf->channel->hw_value);
5724 iwl3945_set_flags_for_phymode(priv, conf->channel->band);
5726 /* The list of supported rates and rate mask can be different
5727 * for each phymode; since the phymode may have changed, reset
5728 * the rate mask to what mac80211 lists */
5729 iwl3945_set_rate(priv);
5731 spin_unlock_irqrestore(&priv->lock, flags);
5733 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
5734 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
5735 iwl3945_hw_channel_switch(priv, conf->channel);
5740 iwl3945_radio_kill_sw(priv, !conf->radio_enabled);
5742 if (!conf->radio_enabled) {
5743 IWL_DEBUG_MAC80211("leave - radio disabled\n");
5747 if (iwl_is_rfkill(priv)) {
5748 IWL_DEBUG_MAC80211("leave - RF kill\n");
5753 iwl3945_set_rate(priv);
5755 if (memcmp(&priv->active39_rxon,
5756 &priv->staging39_rxon, sizeof(priv->staging39_rxon)))
5757 iwl3945_commit_rxon(priv);
5759 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
5761 IWL_DEBUG_MAC80211("leave\n");
5764 clear_bit(STATUS_CONF_PENDING, &priv->status);
5765 mutex_unlock(&priv->mutex);
5769 static void iwl3945_config_ap(struct iwl_priv *priv)
5773 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
5776 /* The following should be done only at AP bring up */
5777 if (!(iwl3945_is_associated(priv))) {
5779 /* RXON - unassoc (to set timing command) */
5780 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5781 iwl3945_commit_rxon(priv);
5784 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
5785 iwl3945_setup_rxon_timing(priv);
5786 rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
5787 sizeof(priv->rxon_timing),
5788 &priv->rxon_timing);
5790 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
5791 "Attempting to continue.\n");
5793 /* FIXME: what should be the assoc_id for AP? */
5794 priv->staging39_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
5795 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
5796 priv->staging39_rxon.flags |=
5797 RXON_FLG_SHORT_PREAMBLE_MSK;
5799 priv->staging39_rxon.flags &=
5800 ~RXON_FLG_SHORT_PREAMBLE_MSK;
5802 if (priv->staging39_rxon.flags & RXON_FLG_BAND_24G_MSK) {
5803 if (priv->assoc_capability &
5804 WLAN_CAPABILITY_SHORT_SLOT_TIME)
5805 priv->staging39_rxon.flags |=
5806 RXON_FLG_SHORT_SLOT_MSK;
5808 priv->staging39_rxon.flags &=
5809 ~RXON_FLG_SHORT_SLOT_MSK;
5811 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
5812 priv->staging39_rxon.flags &=
5813 ~RXON_FLG_SHORT_SLOT_MSK;
5815 /* restore RXON assoc */
5816 priv->staging39_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
5817 iwl3945_commit_rxon(priv);
5818 iwl3945_add_station(priv, iwl_bcast_addr, 0, 0);
5820 iwl3945_send_beacon_cmd(priv);
5822 /* FIXME - we need to add code here to detect a totally new
5823 * configuration, reset the AP, unassoc, rxon timing, assoc,
5824 * clear sta table, add BCAST sta... */
5827 static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
5828 struct ieee80211_vif *vif,
5829 struct ieee80211_if_conf *conf)
5831 struct iwl_priv *priv = hw->priv;
5837 if (priv->vif != vif) {
5838 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
5842 /* handle this temporarily here */
5843 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
5844 conf->changed & IEEE80211_IFCC_BEACON) {
5845 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
5848 mutex_lock(&priv->mutex);
5849 rc = iwl3945_mac_beacon_update(hw, beacon);
5850 mutex_unlock(&priv->mutex);
5855 if (!iwl_is_alive(priv))
5858 mutex_lock(&priv->mutex);
5861 IWL_DEBUG_MAC80211("bssid: %pM\n", conf->bssid);
5864 * very dubious code was here; the probe filtering flag is never set:
5866 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
5867 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
5870 if (priv->iw_mode == NL80211_IFTYPE_AP) {
5872 conf->bssid = priv->mac_addr;
5873 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
5874 IWL_DEBUG_MAC80211("bssid was set to: %pM\n",
5877 if (priv->ibss_beacon)
5878 dev_kfree_skb(priv->ibss_beacon);
5880 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
5883 if (iwl_is_rfkill(priv))
5886 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
5887 !is_multicast_ether_addr(conf->bssid)) {
5888 /* If there is currently a HW scan going on in the background
5889 * then we need to cancel it else the RXON below will fail. */
5890 if (iwl_scan_cancel_timeout(priv, 100)) {
5891 IWL_WARN(priv, "Aborted scan still in progress "
5893 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
5894 mutex_unlock(&priv->mutex);
5897 memcpy(priv->staging39_rxon.bssid_addr, conf->bssid, ETH_ALEN);
5899 /* TODO: Audit driver for usage of these members and see
5900 * if mac80211 deprecates them (priv->bssid looks like it
5901 * shouldn't be there, but I haven't scanned the IBSS code
5902 * to verify) - jpk */
5903 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
5905 if (priv->iw_mode == NL80211_IFTYPE_AP)
5906 iwl3945_config_ap(priv);
5908 rc = iwl3945_commit_rxon(priv);
5909 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
5910 iwl3945_add_station(priv,
5911 priv->active39_rxon.bssid_addr, 1, 0);
5915 iwl_scan_cancel_timeout(priv, 100);
5916 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5917 iwl3945_commit_rxon(priv);
5921 IWL_DEBUG_MAC80211("leave\n");
5922 mutex_unlock(&priv->mutex);
5927 static void iwl3945_configure_filter(struct ieee80211_hw *hw,
5928 unsigned int changed_flags,
5929 unsigned int *total_flags,
5930 int mc_count, struct dev_addr_list *mc_list)
5932 struct iwl_priv *priv = hw->priv;
5933 __le32 *filter_flags = &priv->staging39_rxon.filter_flags;
5935 IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n",
5936 changed_flags, *total_flags);
5938 if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
5939 if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))
5940 *filter_flags |= RXON_FILTER_PROMISC_MSK;
5942 *filter_flags &= ~RXON_FILTER_PROMISC_MSK;
5944 if (changed_flags & FIF_ALLMULTI) {
5945 if (*total_flags & FIF_ALLMULTI)
5946 *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK;
5948 *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK;
5950 if (changed_flags & FIF_CONTROL) {
5951 if (*total_flags & FIF_CONTROL)
5952 *filter_flags |= RXON_FILTER_CTL2HOST_MSK;
5954 *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK;
5956 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
5957 if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
5958 *filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
5960 *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK;
5963 /* We avoid iwl_commit_rxon here to commit the new filter flags
5964 * since mac80211 will call ieee80211_hw_config immediately.
5965 * (mc_list is not supported at this time). Otherwise, we need to
5966 * queue a background iwl_commit_rxon work.
5969 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
5970 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
5973 static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
5974 struct ieee80211_if_init_conf *conf)
5976 struct iwl_priv *priv = hw->priv;
5978 IWL_DEBUG_MAC80211("enter\n");
5980 mutex_lock(&priv->mutex);
5982 if (iwl_is_ready_rf(priv)) {
5983 iwl_scan_cancel_timeout(priv, 100);
5984 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5985 iwl3945_commit_rxon(priv);
5987 if (priv->vif == conf->vif) {
5989 memset(priv->bssid, 0, ETH_ALEN);
5991 mutex_unlock(&priv->mutex);
5993 IWL_DEBUG_MAC80211("leave\n");
5996 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
5998 static void iwl3945_bss_info_changed(struct ieee80211_hw *hw,
5999 struct ieee80211_vif *vif,
6000 struct ieee80211_bss_conf *bss_conf,
6003 struct iwl_priv *priv = hw->priv;
6005 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
6007 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
6008 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6009 bss_conf->use_short_preamble);
6010 if (bss_conf->use_short_preamble)
6011 priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
6013 priv->staging39_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
6016 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
6017 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
6018 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
6019 priv->staging39_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
6021 priv->staging39_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
6024 if (changes & BSS_CHANGED_ASSOC) {
6025 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
6026 /* This should never happen as this function should
6027 * never be called from interrupt context. */
6028 if (WARN_ON_ONCE(in_interrupt()))
6030 if (bss_conf->assoc) {
6031 priv->assoc_id = bss_conf->aid;
6032 priv->beacon_int = bss_conf->beacon_int;
6033 priv->timestamp = bss_conf->timestamp;
6034 priv->assoc_capability = bss_conf->assoc_capability;
6035 priv->power_data.dtim_period = bss_conf->dtim_period;
6036 priv->next_scan_jiffies = jiffies +
6037 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
6038 mutex_lock(&priv->mutex);
6039 iwl3945_post_associate(priv);
6040 mutex_unlock(&priv->mutex);
6043 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
6045 } else if (changes && iwl3945_is_associated(priv) && priv->assoc_id) {
6046 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
6047 iwl3945_send_rxon_assoc(priv);
6052 static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
6055 unsigned long flags;
6056 struct iwl_priv *priv = hw->priv;
6057 DECLARE_SSID_BUF(ssid_buf);
6059 IWL_DEBUG_MAC80211("enter\n");
6061 mutex_lock(&priv->mutex);
6062 spin_lock_irqsave(&priv->lock, flags);
6064 if (!iwl_is_ready_rf(priv)) {
6066 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6070 /* we don't schedule scan within next_scan_jiffies period */
6071 if (priv->next_scan_jiffies &&
6072 time_after(priv->next_scan_jiffies, jiffies)) {
6076 /* if we just finished scan ask for delay for a broadcast scan */
6077 if ((len == 0) && priv->last_scan_jiffies &&
6078 time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN,
6084 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6085 print_ssid(ssid_buf, ssid, len), (int)len);
6087 priv->one_direct_scan = 1;
6088 priv->direct_ssid_len = (u8)
6089 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
6090 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
6092 priv->one_direct_scan = 0;
6094 rc = iwl3945_scan_initiate(priv);
6096 IWL_DEBUG_MAC80211("leave\n");
6099 spin_unlock_irqrestore(&priv->lock, flags);
6100 mutex_unlock(&priv->mutex);
6105 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
6106 struct ieee80211_vif *vif,
6107 struct ieee80211_sta *sta,
6108 struct ieee80211_key_conf *key)
6110 struct iwl_priv *priv = hw->priv;
6115 IWL_DEBUG_MAC80211("enter\n");
6117 if (iwl3945_mod_params.sw_crypto) {
6118 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6122 addr = sta ? sta->addr : iwl_bcast_addr;
6123 sta_id = iwl3945_hw_find_station(priv, addr);
6124 if (sta_id == IWL_INVALID_STATION) {
6125 IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
6130 mutex_lock(&priv->mutex);
6132 iwl_scan_cancel_timeout(priv, 100);
6136 ret = iwl3945_update_sta_key_info(priv, key, sta_id);
6138 iwl3945_set_rxon_hwcrypto(priv, 1);
6139 iwl3945_commit_rxon(priv);
6140 key->hw_key_idx = sta_id;
6141 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
6142 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
6146 ret = iwl3945_clear_sta_key_info(priv, sta_id);
6148 iwl3945_set_rxon_hwcrypto(priv, 0);
6149 iwl3945_commit_rxon(priv);
6150 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6157 IWL_DEBUG_MAC80211("leave\n");
6158 mutex_unlock(&priv->mutex);
6163 static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
6164 const struct ieee80211_tx_queue_params *params)
6166 struct iwl_priv *priv = hw->priv;
6167 unsigned long flags;
6170 IWL_DEBUG_MAC80211("enter\n");
6172 if (!iwl_is_ready_rf(priv)) {
6173 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6177 if (queue >= AC_NUM) {
6178 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
6182 q = AC_NUM - 1 - queue;
6184 spin_lock_irqsave(&priv->lock, flags);
6186 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
6187 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
6188 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
6189 priv->qos_data.def_qos_parm.ac[q].edca_txop =
6190 cpu_to_le16((params->txop * 32));
6192 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
6193 priv->qos_data.qos_active = 1;
6195 spin_unlock_irqrestore(&priv->lock, flags);
6197 mutex_lock(&priv->mutex);
6198 if (priv->iw_mode == NL80211_IFTYPE_AP)
6199 iwl3945_activate_qos(priv, 1);
6200 else if (priv->assoc_id && iwl3945_is_associated(priv))
6201 iwl3945_activate_qos(priv, 0);
6203 mutex_unlock(&priv->mutex);
6205 IWL_DEBUG_MAC80211("leave\n");
6209 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
6210 struct ieee80211_tx_queue_stats *stats)
6212 struct iwl_priv *priv = hw->priv;
6214 struct iwl_tx_queue *txq;
6215 struct iwl_queue *q;
6216 unsigned long flags;
6218 IWL_DEBUG_MAC80211("enter\n");
6220 if (!iwl_is_ready_rf(priv)) {
6221 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6225 spin_lock_irqsave(&priv->lock, flags);
6227 for (i = 0; i < AC_NUM; i++) {
6228 txq = &priv->txq[i];
6230 avail = iwl_queue_space(q);
6232 stats[i].len = q->n_window - avail;
6233 stats[i].limit = q->n_window - q->high_mark;
6234 stats[i].count = q->n_window;
6237 spin_unlock_irqrestore(&priv->lock, flags);
6239 IWL_DEBUG_MAC80211("leave\n");
6244 static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw)
6246 struct iwl_priv *priv = hw->priv;
6247 unsigned long flags;
6249 mutex_lock(&priv->mutex);
6250 IWL_DEBUG_MAC80211("enter\n");
6252 iwl_reset_qos(priv);
6254 spin_lock_irqsave(&priv->lock, flags);
6256 priv->assoc_capability = 0;
6258 /* new association get rid of ibss beacon skb */
6259 if (priv->ibss_beacon)
6260 dev_kfree_skb(priv->ibss_beacon);
6262 priv->ibss_beacon = NULL;
6264 priv->beacon_int = priv->hw->conf.beacon_int;
6265 priv->timestamp = 0;
6266 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
6267 priv->beacon_int = 0;
6269 spin_unlock_irqrestore(&priv->lock, flags);
6271 if (!iwl_is_ready_rf(priv)) {
6272 IWL_DEBUG_MAC80211("leave - not ready\n");
6273 mutex_unlock(&priv->mutex);
6277 /* we are restarting association process
6278 * clear RXON_FILTER_ASSOC_MSK bit
6280 if (priv->iw_mode != NL80211_IFTYPE_AP) {
6281 iwl_scan_cancel_timeout(priv, 100);
6282 priv->staging39_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
6283 iwl3945_commit_rxon(priv);
6286 /* Per mac80211.h: This is only used in IBSS mode... */
6287 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6289 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
6290 mutex_unlock(&priv->mutex);
6294 iwl3945_set_rate(priv);
6296 mutex_unlock(&priv->mutex);
6298 IWL_DEBUG_MAC80211("leave\n");
6302 static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
6304 struct iwl_priv *priv = hw->priv;
6305 unsigned long flags;
6307 IWL_DEBUG_MAC80211("enter\n");
6309 if (!iwl_is_ready_rf(priv)) {
6310 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6314 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
6315 IWL_DEBUG_MAC80211("leave - not IBSS\n");
6319 spin_lock_irqsave(&priv->lock, flags);
6321 if (priv->ibss_beacon)
6322 dev_kfree_skb(priv->ibss_beacon);
6324 priv->ibss_beacon = skb;
6328 IWL_DEBUG_MAC80211("leave\n");
6329 spin_unlock_irqrestore(&priv->lock, flags);
6331 iwl_reset_qos(priv);
6333 iwl3945_post_associate(priv);
6339 /*****************************************************************************
6343 *****************************************************************************/
6345 #ifdef CONFIG_IWL3945_DEBUG
6348 * The following adds a new attribute to the sysfs representation
6349 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
6350 * used for controlling the debug level.
6352 * See the level definitions in iwl for details.
6354 static ssize_t show_debug_level(struct device *d,
6355 struct device_attribute *attr, char *buf)
6357 struct iwl_priv *priv = d->driver_data;
6359 return sprintf(buf, "0x%08X\n", priv->debug_level);
6361 static ssize_t store_debug_level(struct device *d,
6362 struct device_attribute *attr,
6363 const char *buf, size_t count)
6365 struct iwl_priv *priv = d->driver_data;
6369 ret = strict_strtoul(buf, 0, &val);
6371 IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
6373 priv->debug_level = val;
6375 return strnlen(buf, count);
6378 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
6379 show_debug_level, store_debug_level);
6381 #endif /* CONFIG_IWL3945_DEBUG */
6383 static ssize_t show_temperature(struct device *d,
6384 struct device_attribute *attr, char *buf)
6386 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6388 if (!iwl_is_alive(priv))
6391 return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
6394 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
6396 static ssize_t show_tx_power(struct device *d,
6397 struct device_attribute *attr, char *buf)
6399 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6400 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
6403 static ssize_t store_tx_power(struct device *d,
6404 struct device_attribute *attr,
6405 const char *buf, size_t count)
6407 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6408 char *p = (char *)buf;
6411 val = simple_strtoul(p, &p, 10);
6413 IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
6415 iwl3945_hw_reg_set_txpower(priv, val);
6420 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
6422 static ssize_t show_flags(struct device *d,
6423 struct device_attribute *attr, char *buf)
6425 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6427 return sprintf(buf, "0x%04X\n", priv->active39_rxon.flags);
6430 static ssize_t store_flags(struct device *d,
6431 struct device_attribute *attr,
6432 const char *buf, size_t count)
6434 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6435 u32 flags = simple_strtoul(buf, NULL, 0);
6437 mutex_lock(&priv->mutex);
6438 if (le32_to_cpu(priv->staging39_rxon.flags) != flags) {
6439 /* Cancel any currently running scans... */
6440 if (iwl_scan_cancel_timeout(priv, 100))
6441 IWL_WARN(priv, "Could not cancel scan.\n");
6443 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6445 priv->staging39_rxon.flags = cpu_to_le32(flags);
6446 iwl3945_commit_rxon(priv);
6449 mutex_unlock(&priv->mutex);
6454 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
6456 static ssize_t show_filter_flags(struct device *d,
6457 struct device_attribute *attr, char *buf)
6459 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6461 return sprintf(buf, "0x%04X\n",
6462 le32_to_cpu(priv->active39_rxon.filter_flags));
6465 static ssize_t store_filter_flags(struct device *d,
6466 struct device_attribute *attr,
6467 const char *buf, size_t count)
6469 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6470 u32 filter_flags = simple_strtoul(buf, NULL, 0);
6472 mutex_lock(&priv->mutex);
6473 if (le32_to_cpu(priv->staging39_rxon.filter_flags) != filter_flags) {
6474 /* Cancel any currently running scans... */
6475 if (iwl_scan_cancel_timeout(priv, 100))
6476 IWL_WARN(priv, "Could not cancel scan.\n");
6478 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
6479 "0x%04X\n", filter_flags);
6480 priv->staging39_rxon.filter_flags =
6481 cpu_to_le32(filter_flags);
6482 iwl3945_commit_rxon(priv);
6485 mutex_unlock(&priv->mutex);
6490 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
6491 store_filter_flags);
6493 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
6495 static ssize_t show_measurement(struct device *d,
6496 struct device_attribute *attr, char *buf)
6498 struct iwl_priv *priv = dev_get_drvdata(d);
6499 struct iwl_spectrum_notification measure_report;
6500 u32 size = sizeof(measure_report), len = 0, ofs = 0;
6501 u8 *data = (u8 *)&measure_report;
6502 unsigned long flags;
6504 spin_lock_irqsave(&priv->lock, flags);
6505 if (!(priv->measurement_status & MEASUREMENT_READY)) {
6506 spin_unlock_irqrestore(&priv->lock, flags);
6509 memcpy(&measure_report, &priv->measure_report, size);
6510 priv->measurement_status = 0;
6511 spin_unlock_irqrestore(&priv->lock, flags);
6513 while (size && (PAGE_SIZE - len)) {
6514 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
6515 PAGE_SIZE - len, 1);
6517 if (PAGE_SIZE - len)
6521 size -= min(size, 16U);
6527 static ssize_t store_measurement(struct device *d,
6528 struct device_attribute *attr,
6529 const char *buf, size_t count)
6531 struct iwl_priv *priv = dev_get_drvdata(d);
6532 struct ieee80211_measurement_params params = {
6533 .channel = le16_to_cpu(priv->active39_rxon.channel),
6534 .start_time = cpu_to_le64(priv->last_tsf),
6535 .duration = cpu_to_le16(1),
6537 u8 type = IWL_MEASURE_BASIC;
6543 strncpy(buffer, buf, min(sizeof(buffer), count));
6544 channel = simple_strtoul(p, NULL, 0);
6546 params.channel = channel;
6549 while (*p && *p != ' ')
6552 type = simple_strtoul(p + 1, NULL, 0);
6555 IWL_DEBUG_INFO("Invoking measurement of type %d on "
6556 "channel %d (for '%s')\n", type, params.channel, buf);
6557 iwl3945_get_measurement(priv, ¶ms, type);
6562 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
6563 show_measurement, store_measurement);
6564 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
6566 static ssize_t store_retry_rate(struct device *d,
6567 struct device_attribute *attr,
6568 const char *buf, size_t count)
6570 struct iwl_priv *priv = dev_get_drvdata(d);
6572 priv->retry_rate = simple_strtoul(buf, NULL, 0);
6573 if (priv->retry_rate <= 0)
6574 priv->retry_rate = 1;
6579 static ssize_t show_retry_rate(struct device *d,
6580 struct device_attribute *attr, char *buf)
6582 struct iwl_priv *priv = dev_get_drvdata(d);
6583 return sprintf(buf, "%d", priv->retry_rate);
6586 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
6589 static ssize_t store_power_level(struct device *d,
6590 struct device_attribute *attr,
6591 const char *buf, size_t count)
6593 struct iwl_priv *priv = dev_get_drvdata(d);
6597 mode = simple_strtoul(buf, NULL, 0);
6598 mutex_lock(&priv->mutex);
6600 if (!iwl_is_ready(priv)) {
6605 if ((mode < 1) || (mode > IWL39_POWER_LIMIT) ||
6606 (mode == IWL39_POWER_AC))
6607 mode = IWL39_POWER_AC;
6609 mode |= IWL_POWER_ENABLED;
6611 if (mode != priv->power_mode) {
6612 rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode));
6614 IWL_DEBUG_MAC80211("failed setting power mode.\n");
6617 priv->power_mode = mode;
6623 mutex_unlock(&priv->mutex);
6627 #define MAX_WX_STRING 80
6629 /* Values are in microsecond */
6630 static const s32 timeout_duration[] = {
6637 static const s32 period_duration[] = {
6645 static ssize_t show_power_level(struct device *d,
6646 struct device_attribute *attr, char *buf)
6648 struct iwl_priv *priv = dev_get_drvdata(d);
6649 int level = IWL_POWER_LEVEL(priv->power_mode);
6652 p += sprintf(p, "%d ", level);
6654 case IWL_POWER_MODE_CAM:
6655 case IWL39_POWER_AC:
6656 p += sprintf(p, "(AC)");
6658 case IWL39_POWER_BATTERY:
6659 p += sprintf(p, "(BATTERY)");
6663 "(Timeout %dms, Period %dms)",
6664 timeout_duration[level - 1] / 1000,
6665 period_duration[level - 1] / 1000);
6668 if (!(priv->power_mode & IWL_POWER_ENABLED))
6669 p += sprintf(p, " OFF\n");
6671 p += sprintf(p, " \n");
6677 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
6680 static ssize_t show_channels(struct device *d,
6681 struct device_attribute *attr, char *buf)
6683 /* all this shit doesn't belong into sysfs anyway */
6687 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
6689 static ssize_t show_statistics(struct device *d,
6690 struct device_attribute *attr, char *buf)
6692 struct iwl_priv *priv = dev_get_drvdata(d);
6693 u32 size = sizeof(struct iwl3945_notif_statistics);
6694 u32 len = 0, ofs = 0;
6695 u8 *data = (u8 *)&priv->statistics_39;
6698 if (!iwl_is_alive(priv))
6701 mutex_lock(&priv->mutex);
6702 rc = iwl3945_send_statistics_request(priv);
6703 mutex_unlock(&priv->mutex);
6707 "Error sending statistics request: 0x%08X\n", rc);
6711 while (size && (PAGE_SIZE - len)) {
6712 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
6713 PAGE_SIZE - len, 1);
6715 if (PAGE_SIZE - len)
6719 size -= min(size, 16U);
6725 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
6727 static ssize_t show_antenna(struct device *d,
6728 struct device_attribute *attr, char *buf)
6730 struct iwl_priv *priv = dev_get_drvdata(d);
6732 if (!iwl_is_alive(priv))
6735 return sprintf(buf, "%d\n", priv->antenna);
6738 static ssize_t store_antenna(struct device *d,
6739 struct device_attribute *attr,
6740 const char *buf, size_t count)
6743 struct iwl_priv *priv = dev_get_drvdata(d);
6748 if (sscanf(buf, "%1i", &ant) != 1) {
6749 IWL_DEBUG_INFO("not in hex or decimal form.\n");
6753 if ((ant >= 0) && (ant <= 2)) {
6754 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
6755 priv->antenna = (enum iwl3945_antenna)ant;
6757 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
6763 static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
6765 static ssize_t show_status(struct device *d,
6766 struct device_attribute *attr, char *buf)
6768 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
6769 if (!iwl_is_alive(priv))
6771 return sprintf(buf, "0x%08x\n", (int)priv->status);
6774 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
6776 static ssize_t dump_error_log(struct device *d,
6777 struct device_attribute *attr,
6778 const char *buf, size_t count)
6780 char *p = (char *)buf;
6783 iwl3945_dump_nic_error_log((struct iwl_priv *)d->driver_data);
6785 return strnlen(buf, count);
6788 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
6790 static ssize_t dump_event_log(struct device *d,
6791 struct device_attribute *attr,
6792 const char *buf, size_t count)
6794 char *p = (char *)buf;
6797 iwl3945_dump_nic_event_log((struct iwl_priv *)d->driver_data);
6799 return strnlen(buf, count);
6802 static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
6804 /*****************************************************************************
6806 * driver setup and tear down
6808 *****************************************************************************/
6810 static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
6812 priv->workqueue = create_workqueue(DRV_NAME);
6814 init_waitqueue_head(&priv->wait_command_queue);
6816 INIT_WORK(&priv->up, iwl3945_bg_up);
6817 INIT_WORK(&priv->restart, iwl3945_bg_restart);
6818 INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
6819 INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed);
6820 INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
6821 INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan);
6822 INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill);
6823 INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
6824 INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
6825 INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
6826 INIT_DELAYED_WORK(&priv->scan_check, iwl3945_bg_scan_check);
6827 INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll);
6829 iwl3945_hw_setup_deferred_work(priv);
6831 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6832 iwl3945_irq_tasklet, (unsigned long)priv);
6835 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
6837 iwl3945_hw_cancel_deferred_work(priv);
6839 cancel_delayed_work_sync(&priv->init_alive_start);
6840 cancel_delayed_work(&priv->scan_check);
6841 cancel_delayed_work(&priv->alive_start);
6842 cancel_work_sync(&priv->beacon_update);
6845 static struct attribute *iwl3945_sysfs_entries[] = {
6846 &dev_attr_antenna.attr,
6847 &dev_attr_channels.attr,
6848 &dev_attr_dump_errors.attr,
6849 &dev_attr_dump_events.attr,
6850 &dev_attr_flags.attr,
6851 &dev_attr_filter_flags.attr,
6852 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
6853 &dev_attr_measurement.attr,
6855 &dev_attr_power_level.attr,
6856 &dev_attr_retry_rate.attr,
6857 &dev_attr_statistics.attr,
6858 &dev_attr_status.attr,
6859 &dev_attr_temperature.attr,
6860 &dev_attr_tx_power.attr,
6861 #ifdef CONFIG_IWL3945_DEBUG
6862 &dev_attr_debug_level.attr,
6867 static struct attribute_group iwl3945_attribute_group = {
6868 .name = NULL, /* put in device directory */
6869 .attrs = iwl3945_sysfs_entries,
6872 static struct ieee80211_ops iwl3945_hw_ops = {
6873 .tx = iwl3945_mac_tx,
6874 .start = iwl3945_mac_start,
6875 .stop = iwl3945_mac_stop,
6876 .add_interface = iwl3945_mac_add_interface,
6877 .remove_interface = iwl3945_mac_remove_interface,
6878 .config = iwl3945_mac_config,
6879 .config_interface = iwl3945_mac_config_interface,
6880 .configure_filter = iwl3945_configure_filter,
6881 .set_key = iwl3945_mac_set_key,
6882 .get_tx_stats = iwl3945_mac_get_tx_stats,
6883 .conf_tx = iwl3945_mac_conf_tx,
6884 .reset_tsf = iwl3945_mac_reset_tsf,
6885 .bss_info_changed = iwl3945_bss_info_changed,
6886 .hw_scan = iwl3945_mac_hw_scan
6889 static int iwl3945_init_drv(struct iwl_priv *priv)
6893 priv->retry_rate = 1;
6894 priv->ibss_beacon = NULL;
6896 spin_lock_init(&priv->lock);
6897 spin_lock_init(&priv->power_data.lock);
6898 spin_lock_init(&priv->sta_lock);
6899 spin_lock_init(&priv->hcmd_lock);
6901 INIT_LIST_HEAD(&priv->free_frames);
6903 mutex_init(&priv->mutex);
6905 /* Clear the driver's (not device's) station table */
6906 iwl3945_clear_stations_table(priv);
6908 priv->data_retry_limit = -1;
6909 priv->ieee_channels = NULL;
6910 priv->ieee_rates = NULL;
6911 priv->band = IEEE80211_BAND_2GHZ;
6913 priv->iw_mode = NL80211_IFTYPE_STATION;
6915 iwl_reset_qos(priv);
6917 priv->qos_data.qos_active = 0;
6918 priv->qos_data.qos_cap.val = 0;
6920 priv->rates_mask = IWL_RATES_MASK;
6921 /* If power management is turned on, default to AC mode */
6922 priv->power_mode = IWL39_POWER_AC;
6923 priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
6925 ret = iwl3945_init_channel_map(priv);
6927 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
6931 ret = iwl3945_init_geos(priv);
6933 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
6934 goto err_free_channel_map;
6939 err_free_channel_map:
6940 iwl3945_free_channel_map(priv);
6945 static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
6948 struct iwl_priv *priv;
6949 struct ieee80211_hw *hw;
6950 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
6951 unsigned long flags;
6953 /***********************
6954 * 1. Allocating HW data
6955 * ********************/
6957 /* mac80211 allocates memory for this device instance, including
6958 * space for this driver's private structure */
6959 hw = iwl_alloc_all(cfg, &iwl3945_hw_ops);
6961 printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
6966 SET_IEEE80211_DEV(hw, &pdev->dev);
6968 if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
6969 (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
6971 "invalid queues_num, should be between %d and %d\n",
6972 IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
6978 * Disabling hardware scan means that mac80211 will perform scans
6979 * "the hard way", rather than using device's scan.
6981 if (iwl3945_mod_params.disable_hw_scan) {
6982 IWL_DEBUG_INFO("Disabling hw_scan\n");
6983 iwl3945_hw_ops.hw_scan = NULL;
6987 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
6989 priv->pci_dev = pdev;
6991 #ifdef CONFIG_IWL3945_DEBUG
6992 priv->debug_level = iwl3945_mod_params.debug;
6993 atomic_set(&priv->restrict_refcnt, 0);
6995 hw->rate_control_algorithm = "iwl-3945-rs";
6996 hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
6998 /* Select antenna (may be helpful if only one antenna is connected) */
6999 priv->antenna = (enum iwl3945_antenna)iwl3945_mod_params.antenna;
7001 /* Tell mac80211 our characteristics */
7002 hw->flags = IEEE80211_HW_SIGNAL_DBM |
7003 IEEE80211_HW_NOISE_DBM;
7005 hw->wiphy->interface_modes =
7006 BIT(NL80211_IFTYPE_STATION) |
7007 BIT(NL80211_IFTYPE_ADHOC);
7009 hw->wiphy->fw_handles_regulatory = true;
7011 /* 4 EDCA QOS priorities */
7014 /***************************
7015 * 2. Initializing PCI bus
7016 * *************************/
7017 if (pci_enable_device(pdev)) {
7019 goto out_ieee80211_free_hw;
7022 pci_set_master(pdev);
7024 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7026 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
7028 IWL_WARN(priv, "No suitable DMA available.\n");
7029 goto out_pci_disable_device;
7032 pci_set_drvdata(pdev, priv);
7033 err = pci_request_regions(pdev, DRV_NAME);
7035 goto out_pci_disable_device;
7037 /***********************
7038 * 3. Read REV Register
7039 * ********************/
7040 priv->hw_base = pci_iomap(pdev, 0, 0);
7041 if (!priv->hw_base) {
7043 goto out_pci_release_regions;
7046 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7047 (unsigned long long) pci_resource_len(pdev, 0));
7048 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
7050 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7051 * PCI Tx retries from interfering with C3 CPU state */
7052 pci_write_config_byte(pdev, 0x41, 0x00);
7055 err = priv->cfg->ops->lib->apm_ops.init(priv);
7057 IWL_DEBUG_INFO("Failed to init APMG\n");
7061 /***********************
7063 * ********************/
7065 /* Read the EEPROM */
7066 err = iwl3945_eeprom_init(priv);
7068 IWL_ERR(priv, "Unable to init EEPROM\n");
7069 goto out_remove_sysfs;
7071 /* MAC Address location in EEPROM same for 3945/4965 */
7072 get_eeprom_mac(priv, priv->mac_addr);
7073 IWL_DEBUG_INFO("MAC address: %pM\n", priv->mac_addr);
7074 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
7076 /***********************
7077 * 5. Setup HW Constants
7078 * ********************/
7079 /* Device-specific setup */
7080 if (iwl3945_hw_set_hw_params(priv)) {
7081 IWL_ERR(priv, "failed to set hw settings\n");
7085 /***********************
7087 * ********************/
7089 err = iwl3945_init_drv(priv);
7091 IWL_ERR(priv, "initializing driver failed\n");
7095 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
7098 /***********************************
7099 * 7. Initialize Module Parameters
7100 * **********************************/
7102 /* Initialize module parameter values here */
7103 /* Disable radio (SW RF KILL) via parameter when loading driver */
7104 if (iwl3945_mod_params.disable) {
7105 set_bit(STATUS_RF_KILL_SW, &priv->status);
7106 IWL_DEBUG_INFO("Radio disabled.\n");
7110 /***********************
7112 * ********************/
7114 spin_lock_irqsave(&priv->lock, flags);
7115 iwl3945_disable_interrupts(priv);
7116 spin_unlock_irqrestore(&priv->lock, flags);
7118 pci_enable_msi(priv->pci_dev);
7120 err = request_irq(priv->pci_dev->irq, iwl3945_isr, IRQF_SHARED,
7123 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
7124 goto out_disable_msi;
7127 err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7129 IWL_ERR(priv, "failed to create sysfs device attributes\n");
7130 goto out_release_irq;
7133 iwl3945_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
7134 iwl3945_setup_deferred_work(priv);
7135 iwl3945_setup_rx_handlers(priv);
7137 /*********************************
7138 * 9. Setup and Register mac80211
7139 * *******************************/
7141 err = ieee80211_register_hw(priv->hw);
7143 IWL_ERR(priv, "Failed to register network device: %d\n", err);
7144 goto out_remove_sysfs;
7147 priv->hw->conf.beacon_int = 100;
7148 priv->mac80211_registered = 1;
7150 err = iwl_rfkill_init(priv);
7152 IWL_ERR(priv, "Unable to initialize RFKILL system. "
7153 "Ignoring error: %d\n", err);
7155 /* Start monitoring the killswitch */
7156 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
7162 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7164 iwl3945_free_geos(priv);
7167 free_irq(priv->pci_dev->irq, priv);
7168 destroy_workqueue(priv->workqueue);
7169 priv->workqueue = NULL;
7170 iwl3945_unset_hw_params(priv);
7172 pci_disable_msi(priv->pci_dev);
7174 pci_iounmap(pdev, priv->hw_base);
7175 out_pci_release_regions:
7176 pci_release_regions(pdev);
7177 out_pci_disable_device:
7178 pci_disable_device(pdev);
7179 pci_set_drvdata(pdev, NULL);
7180 out_ieee80211_free_hw:
7181 ieee80211_free_hw(priv->hw);
7186 static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
7188 struct iwl_priv *priv = pci_get_drvdata(pdev);
7189 unsigned long flags;
7194 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7196 set_bit(STATUS_EXIT_PENDING, &priv->status);
7198 if (priv->mac80211_registered) {
7199 ieee80211_unregister_hw(priv->hw);
7200 priv->mac80211_registered = 0;
7205 /* make sure we flush any pending irq or
7206 * tasklet for the driver
7208 spin_lock_irqsave(&priv->lock, flags);
7209 iwl3945_disable_interrupts(priv);
7210 spin_unlock_irqrestore(&priv->lock, flags);
7212 iwl_synchronize_irq(priv);
7214 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
7216 iwl_rfkill_unregister(priv);
7217 cancel_delayed_work(&priv->rfkill_poll);
7219 iwl3945_dealloc_ucode_pci(priv);
7222 iwl_rx_queue_free(priv, &priv->rxq);
7223 iwl3945_hw_txq_ctx_free(priv);
7225 iwl3945_unset_hw_params(priv);
7226 iwl3945_clear_stations_table(priv);
7228 /*netif_stop_queue(dev); */
7229 flush_workqueue(priv->workqueue);
7231 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
7232 * priv->workqueue... so we can't take down the workqueue
7234 destroy_workqueue(priv->workqueue);
7235 priv->workqueue = NULL;
7237 free_irq(pdev->irq, priv);
7238 pci_disable_msi(pdev);
7240 pci_iounmap(pdev, priv->hw_base);
7241 pci_release_regions(pdev);
7242 pci_disable_device(pdev);
7243 pci_set_drvdata(pdev, NULL);
7245 iwl3945_free_channel_map(priv);
7246 iwl3945_free_geos(priv);
7248 if (priv->ibss_beacon)
7249 dev_kfree_skb(priv->ibss_beacon);
7251 ieee80211_free_hw(priv->hw);
7256 static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state)
7258 struct iwl_priv *priv = pci_get_drvdata(pdev);
7260 if (priv->is_open) {
7261 set_bit(STATUS_IN_SUSPEND, &priv->status);
7262 iwl3945_mac_stop(priv->hw);
7265 pci_save_state(pdev);
7266 pci_disable_device(pdev);
7267 pci_set_power_state(pdev, PCI_D3hot);
7272 static int iwl3945_pci_resume(struct pci_dev *pdev)
7274 struct iwl_priv *priv = pci_get_drvdata(pdev);
7276 pci_set_power_state(pdev, PCI_D0);
7277 pci_enable_device(pdev);
7278 pci_restore_state(pdev);
7281 iwl3945_mac_start(priv->hw);
7283 clear_bit(STATUS_IN_SUSPEND, &priv->status);
7287 #endif /* CONFIG_PM */
7289 /*****************************************************************************
7291 * driver and module entry point
7293 *****************************************************************************/
7295 static struct pci_driver iwl3945_driver = {
7297 .id_table = iwl3945_hw_card_ids,
7298 .probe = iwl3945_pci_probe,
7299 .remove = __devexit_p(iwl3945_pci_remove),
7301 .suspend = iwl3945_pci_suspend,
7302 .resume = iwl3945_pci_resume,
7306 static int __init iwl3945_init(void)
7310 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
7311 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
7313 ret = iwl3945_rate_control_register();
7315 printk(KERN_ERR DRV_NAME
7316 "Unable to register rate control algorithm: %d\n", ret);
7320 ret = pci_register_driver(&iwl3945_driver);
7322 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
7323 goto error_register;
7329 iwl3945_rate_control_unregister();
7333 static void __exit iwl3945_exit(void)
7335 pci_unregister_driver(&iwl3945_driver);
7336 iwl3945_rate_control_unregister();
7339 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
7341 module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
7342 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
7343 module_param_named(disable, iwl3945_mod_params.disable, int, 0444);
7344 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
7345 module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
7346 MODULE_PARM_DESC(swcrypto,
7347 "using software crypto (default 1 [software])\n");
7348 module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
7349 MODULE_PARM_DESC(debug, "debug output mask");
7350 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
7351 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
7353 module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444);
7354 MODULE_PARM_DESC(queues_num, "number of hw queues.");
7356 module_exit(iwl3945_exit);
7357 module_init(iwl3945_init);