1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 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/slab.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/sched.h>
38 #include <linux/skbuff.h>
39 #include <linux/netdevice.h>
40 #include <linux/wireless.h>
41 #include <linux/firmware.h>
42 #include <linux/etherdevice.h>
43 #include <linux/if_arp.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwlagn"
51 #include "iwl-eeprom.h"
55 #include "iwl-helpers.h"
57 #include "iwl-calib.h"
61 /******************************************************************************
65 ******************************************************************************/
68 * module name, copyright, version, etc.
70 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
72 #ifdef CONFIG_IWLWIFI_DEBUG
78 #define DRV_VERSION IWLWIFI_VERSION VD
81 MODULE_DESCRIPTION(DRV_DESCRIPTION);
82 MODULE_VERSION(DRV_VERSION);
83 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
84 MODULE_LICENSE("GPL");
85 MODULE_ALIAS("iwl4965");
88 * iwl_commit_rxon - commit staging_rxon to hardware
90 * The RXON command in staging_rxon is committed to the hardware and
91 * the active_rxon structure is updated with the new data. This
92 * function correctly transitions out of the RXON_ASSOC_MSK state if
93 * a HW tune is required based on the RXON structure changes.
95 int iwl_commit_rxon(struct iwl_priv *priv)
97 /* cast away the const for active_rxon in this function */
98 struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
101 !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
103 if (!iwl_is_alive(priv))
106 /* always get timestamp with Rx frame */
107 priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
109 ret = iwl_check_rxon_cmd(priv);
111 IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
116 * receive commit_rxon request
117 * abort any previous channel switch if still in process
119 if (priv->switch_rxon.switch_in_progress &&
120 (priv->switch_rxon.channel != priv->staging_rxon.channel)) {
121 IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
122 le16_to_cpu(priv->switch_rxon.channel));
123 priv->switch_rxon.switch_in_progress = false;
126 /* If we don't need to send a full RXON, we can use
127 * iwl_rxon_assoc_cmd which is used to reconfigure filter
128 * and other flags for the current radio configuration. */
129 if (!iwl_full_rxon_required(priv)) {
130 ret = iwl_send_rxon_assoc(priv);
132 IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
136 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
137 iwl_print_rx_config_cmd(priv);
141 /* If we are currently associated and the new config requires
142 * an RXON_ASSOC and the new config wants the associated mask enabled,
143 * we must clear the associated from the active configuration
144 * before we apply the new config */
145 if (iwl_is_associated(priv) && new_assoc) {
146 IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
147 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
149 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
150 sizeof(struct iwl_rxon_cmd),
153 /* If the mask clearing failed then we set
154 * active_rxon back to what it was previously */
156 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
157 IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret);
160 iwl_clear_ucode_stations(priv);
161 iwl_restore_stations(priv);
162 ret = iwl_restore_default_wep_keys(priv);
164 IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
169 IWL_DEBUG_INFO(priv, "Sending RXON\n"
170 "* with%s RXON_FILTER_ASSOC_MSK\n"
173 (new_assoc ? "" : "out"),
174 le16_to_cpu(priv->staging_rxon.channel),
175 priv->staging_rxon.bssid_addr);
177 iwl_set_rxon_hwcrypto(priv, !priv->cfg->mod_params->sw_crypto);
179 /* Apply the new configuration
180 * RXON unassoc clears the station table in uCode so restoration of
181 * stations is needed after it (the RXON command) completes
184 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
185 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
187 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
190 IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON.\n");
191 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
192 iwl_clear_ucode_stations(priv);
193 iwl_restore_stations(priv);
194 ret = iwl_restore_default_wep_keys(priv);
196 IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
201 priv->start_calib = 0;
204 * allow CTS-to-self if possible for new association.
205 * this is relevant only for 5000 series and up,
206 * but will not damage 4965
208 priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
210 /* Apply the new configuration
211 * RXON assoc doesn't clear the station table in uCode,
213 ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
214 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
216 IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
219 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
221 iwl_print_rx_config_cmd(priv);
223 iwl_init_sensitivity(priv);
225 /* If we issue a new RXON command which required a tune then we must
226 * send a new TXPOWER command or we won't be able to Tx any frames */
227 ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
229 IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
236 void iwl_update_chain_flags(struct iwl_priv *priv)
239 if (priv->cfg->ops->hcmd->set_rxon_chain)
240 priv->cfg->ops->hcmd->set_rxon_chain(priv);
241 iwlcore_commit_rxon(priv);
244 static void iwl_clear_free_frames(struct iwl_priv *priv)
246 struct list_head *element;
248 IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
251 while (!list_empty(&priv->free_frames)) {
252 element = priv->free_frames.next;
254 kfree(list_entry(element, struct iwl_frame, list));
255 priv->frames_count--;
258 if (priv->frames_count) {
259 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
261 priv->frames_count = 0;
265 static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
267 struct iwl_frame *frame;
268 struct list_head *element;
269 if (list_empty(&priv->free_frames)) {
270 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
272 IWL_ERR(priv, "Could not allocate frame!\n");
276 priv->frames_count++;
280 element = priv->free_frames.next;
282 return list_entry(element, struct iwl_frame, list);
285 static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
287 memset(frame, 0, sizeof(*frame));
288 list_add(&frame->list, &priv->free_frames);
291 static u32 iwl_fill_beacon_frame(struct iwl_priv *priv,
292 struct ieee80211_hdr *hdr,
295 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
296 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
297 (priv->iw_mode != NL80211_IFTYPE_AP)))
300 if (priv->ibss_beacon->len > left)
303 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
305 return priv->ibss_beacon->len;
308 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
309 static void iwl_set_beacon_tim(struct iwl_priv *priv,
310 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
311 u8 *beacon, u32 frame_size)
314 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
317 * The index is relative to frame start but we start looking at the
318 * variable-length part of the beacon.
320 tim_idx = mgmt->u.beacon.variable - beacon;
322 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
323 while ((tim_idx < (frame_size - 2)) &&
324 (beacon[tim_idx] != WLAN_EID_TIM))
325 tim_idx += beacon[tim_idx+1] + 2;
327 /* If TIM field was found, set variables */
328 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
329 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
330 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
332 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
335 static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
336 struct iwl_frame *frame)
338 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
343 * We have to set up the TX command, the TX Beacon command, and the
347 /* Initialize memory */
348 tx_beacon_cmd = &frame->u.beacon;
349 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
351 /* Set up TX beacon contents */
352 frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
353 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
354 if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE))
357 /* Set up TX command fields */
358 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
359 tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
360 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
361 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
362 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
364 /* Set up TX beacon command fields */
365 iwl_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame,
368 /* Set up packet rate and flags */
369 rate = iwl_rate_get_lowest_plcp(priv);
370 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant);
371 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
372 if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE))
373 rate_flags |= RATE_MCS_CCK_MSK;
374 tx_beacon_cmd->tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate,
377 return sizeof(*tx_beacon_cmd) + frame_size;
379 static int iwl_send_beacon_cmd(struct iwl_priv *priv)
381 struct iwl_frame *frame;
382 unsigned int frame_size;
385 frame = iwl_get_free_frame(priv);
387 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
392 frame_size = iwl_hw_get_beacon_cmd(priv, frame);
394 IWL_ERR(priv, "Error configuring the beacon command\n");
395 iwl_free_frame(priv, frame);
399 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
402 iwl_free_frame(priv, frame);
407 static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
409 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
411 dma_addr_t addr = get_unaligned_le32(&tb->lo);
412 if (sizeof(dma_addr_t) > sizeof(u32))
414 ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
419 static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
421 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
423 return le16_to_cpu(tb->hi_n_len) >> 4;
426 static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
427 dma_addr_t addr, u16 len)
429 struct iwl_tfd_tb *tb = &tfd->tbs[idx];
430 u16 hi_n_len = len << 4;
432 put_unaligned_le32(addr, &tb->lo);
433 if (sizeof(dma_addr_t) > sizeof(u32))
434 hi_n_len |= ((addr >> 16) >> 16) & 0xF;
436 tb->hi_n_len = cpu_to_le16(hi_n_len);
438 tfd->num_tbs = idx + 1;
441 static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
443 return tfd->num_tbs & 0x1f;
447 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
448 * @priv - driver private data
451 * Does NOT advance any TFD circular buffer read/write indexes
452 * Does NOT free the TFD itself (which is within circular buffer)
454 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
456 struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds;
458 struct pci_dev *dev = priv->pci_dev;
459 int index = txq->q.read_ptr;
463 tfd = &tfd_tmp[index];
465 /* Sanity check on number of chunks */
466 num_tbs = iwl_tfd_get_num_tbs(tfd);
468 if (num_tbs >= IWL_NUM_OF_TBS) {
469 IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
470 /* @todo issue fatal error, it is quite serious situation */
476 pci_unmap_single(dev,
477 pci_unmap_addr(&txq->meta[index], mapping),
478 pci_unmap_len(&txq->meta[index], len),
479 PCI_DMA_BIDIRECTIONAL);
481 /* Unmap chunks, if any. */
482 for (i = 1; i < num_tbs; i++) {
483 pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
484 iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);
487 dev_kfree_skb(txq->txb[txq->q.read_ptr].skb[i - 1]);
488 txq->txb[txq->q.read_ptr].skb[i - 1] = NULL;
493 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
494 struct iwl_tx_queue *txq,
495 dma_addr_t addr, u16 len,
499 struct iwl_tfd *tfd, *tfd_tmp;
503 tfd_tmp = (struct iwl_tfd *)txq->tfds;
504 tfd = &tfd_tmp[q->write_ptr];
507 memset(tfd, 0, sizeof(*tfd));
509 num_tbs = iwl_tfd_get_num_tbs(tfd);
511 /* Each TFD can point to a maximum 20 Tx buffers */
512 if (num_tbs >= IWL_NUM_OF_TBS) {
513 IWL_ERR(priv, "Error can not send more than %d chunks\n",
518 BUG_ON(addr & ~DMA_BIT_MASK(36));
519 if (unlikely(addr & ~IWL_TX_DMA_MASK))
520 IWL_ERR(priv, "Unaligned address = %llx\n",
521 (unsigned long long)addr);
523 iwl_tfd_set_tb(tfd, num_tbs, addr, len);
529 * Tell nic where to find circular buffer of Tx Frame Descriptors for
530 * given Tx queue, and enable the DMA channel used for that queue.
532 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
533 * channels supported in hardware.
535 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
536 struct iwl_tx_queue *txq)
538 int txq_id = txq->q.id;
540 /* Circular buffer (TFD queue in DRAM) physical base address */
541 iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
542 txq->q.dma_addr >> 8);
547 /******************************************************************************
549 * Generic RX handler implementations
551 ******************************************************************************/
552 static void iwl_rx_reply_alive(struct iwl_priv *priv,
553 struct iwl_rx_mem_buffer *rxb)
555 struct iwl_rx_packet *pkt = rxb_addr(rxb);
556 struct iwl_alive_resp *palive;
557 struct delayed_work *pwork;
559 palive = &pkt->u.alive_frame;
561 IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
563 palive->is_valid, palive->ver_type,
564 palive->ver_subtype);
566 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
567 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
568 memcpy(&priv->card_alive_init,
570 sizeof(struct iwl_init_alive_resp));
571 pwork = &priv->init_alive_start;
573 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
574 memcpy(&priv->card_alive, &pkt->u.alive_frame,
575 sizeof(struct iwl_alive_resp));
576 pwork = &priv->alive_start;
579 /* We delay the ALIVE response by 5ms to
580 * give the HW RF Kill time to activate... */
581 if (palive->is_valid == UCODE_VALID_OK)
582 queue_delayed_work(priv->workqueue, pwork,
583 msecs_to_jiffies(5));
585 IWL_WARN(priv, "uCode did not respond OK.\n");
588 static void iwl_bg_beacon_update(struct work_struct *work)
590 struct iwl_priv *priv =
591 container_of(work, struct iwl_priv, beacon_update);
592 struct sk_buff *beacon;
594 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
595 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
598 IWL_ERR(priv, "update beacon failed\n");
602 mutex_lock(&priv->mutex);
603 /* new beacon skb is allocated every time; dispose previous.*/
604 if (priv->ibss_beacon)
605 dev_kfree_skb(priv->ibss_beacon);
607 priv->ibss_beacon = beacon;
608 mutex_unlock(&priv->mutex);
610 iwl_send_beacon_cmd(priv);
614 * iwl_bg_statistics_periodic - Timer callback to queue statistics
616 * This callback is provided in order to send a statistics request.
618 * This timer function is continually reset to execute within
619 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
620 * was received. We need to ensure we receive the statistics in order
621 * to update the temperature used for calibrating the TXPOWER.
623 static void iwl_bg_statistics_periodic(unsigned long data)
625 struct iwl_priv *priv = (struct iwl_priv *)data;
627 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
630 /* dont send host command if rf-kill is on */
631 if (!iwl_is_ready_rf(priv))
634 iwl_send_statistics_request(priv, CMD_ASYNC, false);
638 static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
639 u32 start_idx, u32 num_events,
643 u32 ptr; /* SRAM byte address of log data */
644 u32 ev, time, data; /* event log data */
645 unsigned long reg_flags;
648 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
650 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
652 /* Make sure device is powered up for SRAM reads */
653 spin_lock_irqsave(&priv->reg_lock, reg_flags);
654 if (iwl_grab_nic_access(priv)) {
655 spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
659 /* Set starting address; reads will auto-increment */
660 _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
664 * "time" is actually "data" for mode 0 (no timestamp).
665 * place event id # at far right for easier visual parsing.
667 for (i = 0; i < num_events; i++) {
668 ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
669 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
671 trace_iwlwifi_dev_ucode_cont_event(priv,
674 data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
675 trace_iwlwifi_dev_ucode_cont_event(priv,
679 /* Allow device to power down */
680 iwl_release_nic_access(priv);
681 spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
684 static void iwl_continuous_event_trace(struct iwl_priv *priv)
686 u32 capacity; /* event log capacity in # entries */
687 u32 base; /* SRAM byte address of event log header */
688 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
689 u32 num_wraps; /* # times uCode wrapped to top of log */
690 u32 next_entry; /* index of next entry to be written by uCode */
692 if (priv->ucode_type == UCODE_INIT)
693 base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
695 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
696 if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
697 capacity = iwl_read_targ_mem(priv, base);
698 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
699 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
700 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
704 if (num_wraps == priv->event_log.num_wraps) {
705 iwl_print_cont_event_trace(priv,
706 base, priv->event_log.next_entry,
707 next_entry - priv->event_log.next_entry,
709 priv->event_log.non_wraps_count++;
711 if ((num_wraps - priv->event_log.num_wraps) > 1)
712 priv->event_log.wraps_more_count++;
714 priv->event_log.wraps_once_count++;
715 trace_iwlwifi_dev_ucode_wrap_event(priv,
716 num_wraps - priv->event_log.num_wraps,
717 next_entry, priv->event_log.next_entry);
718 if (next_entry < priv->event_log.next_entry) {
719 iwl_print_cont_event_trace(priv, base,
720 priv->event_log.next_entry,
721 capacity - priv->event_log.next_entry,
724 iwl_print_cont_event_trace(priv, base, 0,
727 iwl_print_cont_event_trace(priv, base,
728 next_entry, capacity - next_entry,
731 iwl_print_cont_event_trace(priv, base, 0,
735 priv->event_log.num_wraps = num_wraps;
736 priv->event_log.next_entry = next_entry;
740 * iwl_bg_ucode_trace - Timer callback to log ucode event
742 * The timer is continually set to execute every
743 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
744 * this function is to perform continuous uCode event logging operation
747 static void iwl_bg_ucode_trace(unsigned long data)
749 struct iwl_priv *priv = (struct iwl_priv *)data;
751 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
754 if (priv->event_log.ucode_trace) {
755 iwl_continuous_event_trace(priv);
756 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
757 mod_timer(&priv->ucode_trace,
758 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
762 static void iwl_rx_beacon_notif(struct iwl_priv *priv,
763 struct iwl_rx_mem_buffer *rxb)
765 #ifdef CONFIG_IWLWIFI_DEBUG
766 struct iwl_rx_packet *pkt = rxb_addr(rxb);
767 struct iwl4965_beacon_notif *beacon =
768 (struct iwl4965_beacon_notif *)pkt->u.raw;
769 u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
771 IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
772 "tsf %d %d rate %d\n",
773 le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
774 beacon->beacon_notify_hdr.failure_frame,
775 le32_to_cpu(beacon->ibss_mgr_status),
776 le32_to_cpu(beacon->high_tsf),
777 le32_to_cpu(beacon->low_tsf), rate);
780 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
781 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
782 queue_work(priv->workqueue, &priv->beacon_update);
785 /* Handle notification from uCode that card's power state is changing
786 * due to software, hardware, or critical temperature RFKILL */
787 static void iwl_rx_card_state_notif(struct iwl_priv *priv,
788 struct iwl_rx_mem_buffer *rxb)
790 struct iwl_rx_packet *pkt = rxb_addr(rxb);
791 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
792 unsigned long status = priv->status;
794 IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n",
795 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
796 (flags & SW_CARD_DISABLED) ? "Kill" : "On",
797 (flags & CT_CARD_DISABLED) ?
798 "Reached" : "Not reached");
800 if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
803 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
804 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
806 iwl_write_direct32(priv, HBUS_TARG_MBX_C,
807 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
809 if (!(flags & RXON_CARD_DISABLED)) {
810 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
811 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
812 iwl_write_direct32(priv, HBUS_TARG_MBX_C,
813 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
815 if (flags & CT_CARD_DISABLED)
816 iwl_tt_enter_ct_kill(priv);
818 if (!(flags & CT_CARD_DISABLED))
819 iwl_tt_exit_ct_kill(priv);
821 if (flags & HW_CARD_DISABLED)
822 set_bit(STATUS_RF_KILL_HW, &priv->status);
824 clear_bit(STATUS_RF_KILL_HW, &priv->status);
827 if (!(flags & RXON_CARD_DISABLED))
828 iwl_scan_cancel(priv);
830 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
831 test_bit(STATUS_RF_KILL_HW, &priv->status)))
832 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
833 test_bit(STATUS_RF_KILL_HW, &priv->status));
835 wake_up_interruptible(&priv->wait_command_queue);
838 int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
840 if (src == IWL_PWR_SRC_VAUX) {
841 if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
842 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
843 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
844 ~APMG_PS_CTRL_MSK_PWR_SRC);
846 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
847 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
848 ~APMG_PS_CTRL_MSK_PWR_SRC);
855 * iwl_setup_rx_handlers - Initialize Rx handler callbacks
857 * Setup the RX handlers for each of the reply types sent from the uCode
860 * This function chains into the hardware specific files for them to setup
861 * any hardware specific handlers as well.
863 static void iwl_setup_rx_handlers(struct iwl_priv *priv)
865 priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
866 priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
867 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
868 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
869 iwl_rx_spectrum_measure_notif;
870 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
871 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
872 iwl_rx_pm_debug_statistics_notif;
873 priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif;
876 * The same handler is used for both the REPLY to a discrete
877 * statistics request from the host as well as for the periodic
878 * statistics notifications (after received beacons) from the uCode.
880 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_reply_statistics;
881 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
883 iwl_setup_rx_scan_handlers(priv);
885 /* status change handler */
886 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif;
888 priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
889 iwl_rx_missed_beacon_notif;
891 priv->rx_handlers[REPLY_RX_PHY_CMD] = iwlagn_rx_reply_rx_phy;
892 priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwlagn_rx_reply_rx;
894 priv->rx_handlers[REPLY_COMPRESSED_BA] = iwlagn_rx_reply_compressed_ba;
895 /* Set up hardware specific Rx handlers */
896 priv->cfg->ops->lib->rx_handler_setup(priv);
900 * iwl_rx_handle - Main entry function for receiving responses from uCode
902 * Uses the priv->rx_handlers callback function array to invoke
903 * the appropriate handlers, including command responses,
904 * frame-received notifications, and other notifications.
906 void iwl_rx_handle(struct iwl_priv *priv)
908 struct iwl_rx_mem_buffer *rxb;
909 struct iwl_rx_packet *pkt;
910 struct iwl_rx_queue *rxq = &priv->rxq;
918 /* uCode's read index (stored in shared DRAM) indicates the last Rx
919 * buffer that the driver may process (last buffer filled by ucode). */
920 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
923 /* Rx interrupt, but nothing sent from uCode */
925 IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
927 /* calculate total frames need to be restock after handling RX */
928 total_empty = r - rxq->write_actual;
930 total_empty += RX_QUEUE_SIZE;
932 if (total_empty > (RX_QUEUE_SIZE / 2))
938 /* If an RXB doesn't have a Rx queue slot associated with it,
939 * then a bug has been introduced in the queue refilling
940 * routines -- catch it here */
943 rxq->queue[i] = NULL;
945 pci_unmap_page(priv->pci_dev, rxb->page_dma,
946 PAGE_SIZE << priv->hw_params.rx_page_order,
950 trace_iwlwifi_dev_rx(priv, pkt,
951 le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
953 /* Reclaim a command buffer only if this packet is a response
954 * to a (driver-originated) command.
955 * If the packet (e.g. Rx frame) originated from uCode,
956 * there is no command buffer to reclaim.
957 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
958 * but apparently a few don't get set; catch them here. */
959 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
960 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
961 (pkt->hdr.cmd != REPLY_RX) &&
962 (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) &&
963 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
964 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
965 (pkt->hdr.cmd != REPLY_TX);
967 /* Based on type of command response or notification,
968 * handle those that need handling via function in
969 * rx_handlers table. See iwl_setup_rx_handlers() */
970 if (priv->rx_handlers[pkt->hdr.cmd]) {
971 IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r,
972 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
973 priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
974 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
976 /* No handling needed */
978 "r %d i %d No handler needed for %s, 0x%02x\n",
979 r, i, get_cmd_string(pkt->hdr.cmd),
984 * XXX: After here, we should always check rxb->page
985 * against NULL before touching it or its virtual
986 * memory (pkt). Because some rx_handler might have
987 * already taken or freed the pages.
991 /* Invoke any callbacks, transfer the buffer to caller,
992 * and fire off the (possibly) blocking iwl_send_cmd()
993 * as we reclaim the driver command queue */
995 iwl_tx_cmd_complete(priv, rxb);
997 IWL_WARN(priv, "Claim null rxb?\n");
1000 /* Reuse the page if possible. For notification packets and
1001 * SKBs that fail to Rx correctly, add them back into the
1002 * rx_free list for reuse later. */
1003 spin_lock_irqsave(&rxq->lock, flags);
1004 if (rxb->page != NULL) {
1005 rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page,
1006 0, PAGE_SIZE << priv->hw_params.rx_page_order,
1007 PCI_DMA_FROMDEVICE);
1008 list_add_tail(&rxb->list, &rxq->rx_free);
1011 list_add_tail(&rxb->list, &rxq->rx_used);
1013 spin_unlock_irqrestore(&rxq->lock, flags);
1015 i = (i + 1) & RX_QUEUE_MASK;
1016 /* If there are a lot of unused frames,
1017 * restock the Rx queue so ucode wont assert. */
1022 iwlagn_rx_replenish_now(priv);
1028 /* Backtrack one entry */
1031 iwlagn_rx_replenish_now(priv);
1033 iwlagn_rx_queue_restock(priv);
1036 /* call this function to flush any scheduled tasklet */
1037 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
1039 /* wait to make sure we flush pending tasklet*/
1040 synchronize_irq(priv->pci_dev->irq);
1041 tasklet_kill(&priv->irq_tasklet);
1044 static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
1046 u32 inta, handled = 0;
1048 unsigned long flags;
1050 #ifdef CONFIG_IWLWIFI_DEBUG
1054 spin_lock_irqsave(&priv->lock, flags);
1056 /* Ack/clear/reset pending uCode interrupts.
1057 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1058 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1059 inta = iwl_read32(priv, CSR_INT);
1060 iwl_write32(priv, CSR_INT, inta);
1062 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1063 * Any new interrupts that happen after this, either while we're
1064 * in this tasklet, or later, will show up in next ISR/tasklet. */
1065 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1066 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
1068 #ifdef CONFIG_IWLWIFI_DEBUG
1069 if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
1070 /* just for debug */
1071 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1072 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1073 inta, inta_mask, inta_fh);
1077 spin_unlock_irqrestore(&priv->lock, flags);
1079 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1080 * atomic, make sure that inta covers all the interrupts that
1081 * we've discovered, even if FH interrupt came in just after
1082 * reading CSR_INT. */
1083 if (inta_fh & CSR49_FH_INT_RX_MASK)
1084 inta |= CSR_INT_BIT_FH_RX;
1085 if (inta_fh & CSR49_FH_INT_TX_MASK)
1086 inta |= CSR_INT_BIT_FH_TX;
1088 /* Now service all interrupt bits discovered above. */
1089 if (inta & CSR_INT_BIT_HW_ERR) {
1090 IWL_ERR(priv, "Hardware error detected. Restarting.\n");
1092 /* Tell the device to stop sending interrupts */
1093 iwl_disable_interrupts(priv);
1095 priv->isr_stats.hw++;
1096 iwl_irq_handle_error(priv);
1098 handled |= CSR_INT_BIT_HW_ERR;
1103 #ifdef CONFIG_IWLWIFI_DEBUG
1104 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
1105 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1106 if (inta & CSR_INT_BIT_SCD) {
1107 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
1108 "the frame/frames.\n");
1109 priv->isr_stats.sch++;
1112 /* Alive notification via Rx interrupt will do the real work */
1113 if (inta & CSR_INT_BIT_ALIVE) {
1114 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
1115 priv->isr_stats.alive++;
1119 /* Safely ignore these bits for debug checks below */
1120 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1122 /* HW RF KILL switch toggled */
1123 if (inta & CSR_INT_BIT_RF_KILL) {
1125 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
1126 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
1129 IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
1130 hw_rf_kill ? "disable radio" : "enable radio");
1132 priv->isr_stats.rfkill++;
1134 /* driver only loads ucode once setting the interface up.
1135 * the driver allows loading the ucode even if the radio
1136 * is killed. Hence update the killswitch state here. The
1137 * rfkill handler will care about restarting if needed.
1139 if (!test_bit(STATUS_ALIVE, &priv->status)) {
1141 set_bit(STATUS_RF_KILL_HW, &priv->status);
1143 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1144 wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill);
1147 handled |= CSR_INT_BIT_RF_KILL;
1150 /* Chip got too hot and stopped itself */
1151 if (inta & CSR_INT_BIT_CT_KILL) {
1152 IWL_ERR(priv, "Microcode CT kill error detected.\n");
1153 priv->isr_stats.ctkill++;
1154 handled |= CSR_INT_BIT_CT_KILL;
1157 /* Error detected by uCode */
1158 if (inta & CSR_INT_BIT_SW_ERR) {
1159 IWL_ERR(priv, "Microcode SW error detected. "
1160 " Restarting 0x%X.\n", inta);
1161 priv->isr_stats.sw++;
1162 priv->isr_stats.sw_err = inta;
1163 iwl_irq_handle_error(priv);
1164 handled |= CSR_INT_BIT_SW_ERR;
1168 * uCode wakes up after power-down sleep.
1169 * Tell device about any new tx or host commands enqueued,
1170 * and about any Rx buffers made available while asleep.
1172 if (inta & CSR_INT_BIT_WAKEUP) {
1173 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
1174 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1175 for (i = 0; i < priv->hw_params.max_txq_num; i++)
1176 iwl_txq_update_write_ptr(priv, &priv->txq[i]);
1177 priv->isr_stats.wakeup++;
1178 handled |= CSR_INT_BIT_WAKEUP;
1181 /* All uCode command responses, including Tx command responses,
1182 * Rx "responses" (frame-received notification), and other
1183 * notifications from uCode come through here*/
1184 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1185 iwl_rx_handle(priv);
1186 priv->isr_stats.rx++;
1187 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1190 /* This "Tx" DMA channel is used only for loading uCode */
1191 if (inta & CSR_INT_BIT_FH_TX) {
1192 IWL_DEBUG_ISR(priv, "uCode load interrupt\n");
1193 priv->isr_stats.tx++;
1194 handled |= CSR_INT_BIT_FH_TX;
1195 /* Wake up uCode load routine, now that load is complete */
1196 priv->ucode_write_complete = 1;
1197 wake_up_interruptible(&priv->wait_command_queue);
1200 if (inta & ~handled) {
1201 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
1202 priv->isr_stats.unhandled++;
1205 if (inta & ~(priv->inta_mask)) {
1206 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
1207 inta & ~priv->inta_mask);
1208 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
1211 /* Re-enable all interrupts */
1212 /* only Re-enable if diabled by irq */
1213 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1214 iwl_enable_interrupts(priv);
1216 #ifdef CONFIG_IWLWIFI_DEBUG
1217 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
1218 inta = iwl_read32(priv, CSR_INT);
1219 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1220 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1221 IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1222 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1227 /* tasklet for iwlagn interrupt */
1228 static void iwl_irq_tasklet(struct iwl_priv *priv)
1232 unsigned long flags;
1234 #ifdef CONFIG_IWLWIFI_DEBUG
1238 spin_lock_irqsave(&priv->lock, flags);
1240 /* Ack/clear/reset pending uCode interrupts.
1241 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1243 /* There is a hardware bug in the interrupt mask function that some
1244 * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
1245 * they are disabled in the CSR_INT_MASK register. Furthermore the
1246 * ICT interrupt handling mechanism has another bug that might cause
1247 * these unmasked interrupts fail to be detected. We workaround the
1248 * hardware bugs here by ACKing all the possible interrupts so that
1249 * interrupt coalescing can still be achieved.
1251 iwl_write32(priv, CSR_INT, priv->_agn.inta | ~priv->inta_mask);
1253 inta = priv->_agn.inta;
1255 #ifdef CONFIG_IWLWIFI_DEBUG
1256 if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
1257 /* just for debug */
1258 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1259 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ",
1264 spin_unlock_irqrestore(&priv->lock, flags);
1266 /* saved interrupt in inta variable now we can reset priv->_agn.inta */
1267 priv->_agn.inta = 0;
1269 /* Now service all interrupt bits discovered above. */
1270 if (inta & CSR_INT_BIT_HW_ERR) {
1271 IWL_ERR(priv, "Hardware error detected. Restarting.\n");
1273 /* Tell the device to stop sending interrupts */
1274 iwl_disable_interrupts(priv);
1276 priv->isr_stats.hw++;
1277 iwl_irq_handle_error(priv);
1279 handled |= CSR_INT_BIT_HW_ERR;
1284 #ifdef CONFIG_IWLWIFI_DEBUG
1285 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
1286 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1287 if (inta & CSR_INT_BIT_SCD) {
1288 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
1289 "the frame/frames.\n");
1290 priv->isr_stats.sch++;
1293 /* Alive notification via Rx interrupt will do the real work */
1294 if (inta & CSR_INT_BIT_ALIVE) {
1295 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
1296 priv->isr_stats.alive++;
1300 /* Safely ignore these bits for debug checks below */
1301 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1303 /* HW RF KILL switch toggled */
1304 if (inta & CSR_INT_BIT_RF_KILL) {
1306 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
1307 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
1310 IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
1311 hw_rf_kill ? "disable radio" : "enable radio");
1313 priv->isr_stats.rfkill++;
1315 /* driver only loads ucode once setting the interface up.
1316 * the driver allows loading the ucode even if the radio
1317 * is killed. Hence update the killswitch state here. The
1318 * rfkill handler will care about restarting if needed.
1320 if (!test_bit(STATUS_ALIVE, &priv->status)) {
1322 set_bit(STATUS_RF_KILL_HW, &priv->status);
1324 clear_bit(STATUS_RF_KILL_HW, &priv->status);
1325 wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill);
1328 handled |= CSR_INT_BIT_RF_KILL;
1331 /* Chip got too hot and stopped itself */
1332 if (inta & CSR_INT_BIT_CT_KILL) {
1333 IWL_ERR(priv, "Microcode CT kill error detected.\n");
1334 priv->isr_stats.ctkill++;
1335 handled |= CSR_INT_BIT_CT_KILL;
1338 /* Error detected by uCode */
1339 if (inta & CSR_INT_BIT_SW_ERR) {
1340 IWL_ERR(priv, "Microcode SW error detected. "
1341 " Restarting 0x%X.\n", inta);
1342 priv->isr_stats.sw++;
1343 priv->isr_stats.sw_err = inta;
1344 iwl_irq_handle_error(priv);
1345 handled |= CSR_INT_BIT_SW_ERR;
1348 /* uCode wakes up after power-down sleep */
1349 if (inta & CSR_INT_BIT_WAKEUP) {
1350 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
1351 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1352 for (i = 0; i < priv->hw_params.max_txq_num; i++)
1353 iwl_txq_update_write_ptr(priv, &priv->txq[i]);
1355 priv->isr_stats.wakeup++;
1357 handled |= CSR_INT_BIT_WAKEUP;
1360 /* All uCode command responses, including Tx command responses,
1361 * Rx "responses" (frame-received notification), and other
1362 * notifications from uCode come through here*/
1363 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX |
1364 CSR_INT_BIT_RX_PERIODIC)) {
1365 IWL_DEBUG_ISR(priv, "Rx interrupt\n");
1366 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1367 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1368 iwl_write32(priv, CSR_FH_INT_STATUS,
1369 CSR49_FH_INT_RX_MASK);
1371 if (inta & CSR_INT_BIT_RX_PERIODIC) {
1372 handled |= CSR_INT_BIT_RX_PERIODIC;
1373 iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC);
1375 /* Sending RX interrupt require many steps to be done in the
1377 * 1- write interrupt to current index in ICT table.
1379 * 3- update RX shared data to indicate last write index.
1380 * 4- send interrupt.
1381 * This could lead to RX race, driver could receive RX interrupt
1382 * but the shared data changes does not reflect this;
1383 * periodic interrupt will detect any dangling Rx activity.
1386 /* Disable periodic interrupt; we use it as just a one-shot. */
1387 iwl_write8(priv, CSR_INT_PERIODIC_REG,
1388 CSR_INT_PERIODIC_DIS);
1389 iwl_rx_handle(priv);
1392 * Enable periodic interrupt in 8 msec only if we received
1393 * real RX interrupt (instead of just periodic int), to catch
1394 * any dangling Rx interrupt. If it was just the periodic
1395 * interrupt, there was no dangling Rx activity, and no need
1396 * to extend the periodic interrupt; one-shot is enough.
1398 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX))
1399 iwl_write8(priv, CSR_INT_PERIODIC_REG,
1400 CSR_INT_PERIODIC_ENA);
1402 priv->isr_stats.rx++;
1405 /* This "Tx" DMA channel is used only for loading uCode */
1406 if (inta & CSR_INT_BIT_FH_TX) {
1407 iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_TX_MASK);
1408 IWL_DEBUG_ISR(priv, "uCode load interrupt\n");
1409 priv->isr_stats.tx++;
1410 handled |= CSR_INT_BIT_FH_TX;
1411 /* Wake up uCode load routine, now that load is complete */
1412 priv->ucode_write_complete = 1;
1413 wake_up_interruptible(&priv->wait_command_queue);
1416 if (inta & ~handled) {
1417 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
1418 priv->isr_stats.unhandled++;
1421 if (inta & ~(priv->inta_mask)) {
1422 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
1423 inta & ~priv->inta_mask);
1426 /* Re-enable all interrupts */
1427 /* only Re-enable if diabled by irq */
1428 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1429 iwl_enable_interrupts(priv);
1432 /* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */
1433 #define ACK_CNT_RATIO (50)
1434 #define BA_TIMEOUT_CNT (5)
1435 #define BA_TIMEOUT_MAX (16)
1438 * iwl_good_ack_health - checks for ACK count ratios, BA timeout retries.
1440 * When the ACK count ratio is 0 and aggregated BA timeout retries exceeding
1441 * the BA_TIMEOUT_MAX, reload firmware and bring system back to normal
1444 bool iwl_good_ack_health(struct iwl_priv *priv,
1445 struct iwl_rx_packet *pkt)
1448 int actual_ack_cnt_delta, expected_ack_cnt_delta;
1449 int ba_timeout_delta;
1451 actual_ack_cnt_delta =
1452 le32_to_cpu(pkt->u.stats.tx.actual_ack_cnt) -
1453 le32_to_cpu(priv->statistics.tx.actual_ack_cnt);
1454 expected_ack_cnt_delta =
1455 le32_to_cpu(pkt->u.stats.tx.expected_ack_cnt) -
1456 le32_to_cpu(priv->statistics.tx.expected_ack_cnt);
1458 le32_to_cpu(pkt->u.stats.tx.agg.ba_timeout) -
1459 le32_to_cpu(priv->statistics.tx.agg.ba_timeout);
1460 if ((priv->_agn.agg_tids_count > 0) &&
1461 (expected_ack_cnt_delta > 0) &&
1462 (((actual_ack_cnt_delta * 100) / expected_ack_cnt_delta)
1464 (ba_timeout_delta > BA_TIMEOUT_CNT)) {
1465 IWL_DEBUG_RADIO(priv, "actual_ack_cnt delta = %d,"
1466 " expected_ack_cnt = %d\n",
1467 actual_ack_cnt_delta, expected_ack_cnt_delta);
1469 #ifdef CONFIG_IWLWIFI_DEBUG
1470 IWL_DEBUG_RADIO(priv, "rx_detected_cnt delta = %d\n",
1471 priv->delta_statistics.tx.rx_detected_cnt);
1472 IWL_DEBUG_RADIO(priv,
1473 "ack_or_ba_timeout_collision delta = %d\n",
1474 priv->delta_statistics.tx.
1475 ack_or_ba_timeout_collision);
1477 IWL_DEBUG_RADIO(priv, "agg ba_timeout delta = %d\n",
1479 if (!actual_ack_cnt_delta &&
1480 (ba_timeout_delta >= BA_TIMEOUT_MAX))
1487 /*****************************************************************************
1491 *****************************************************************************/
1493 #ifdef CONFIG_IWLWIFI_DEBUG
1496 * The following adds a new attribute to the sysfs representation
1497 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
1498 * used for controlling the debug level.
1500 * See the level definitions in iwl for details.
1502 * The debug_level being managed using sysfs below is a per device debug
1503 * level that is used instead of the global debug level if it (the per
1504 * device debug level) is set.
1506 static ssize_t show_debug_level(struct device *d,
1507 struct device_attribute *attr, char *buf)
1509 struct iwl_priv *priv = dev_get_drvdata(d);
1510 return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
1512 static ssize_t store_debug_level(struct device *d,
1513 struct device_attribute *attr,
1514 const char *buf, size_t count)
1516 struct iwl_priv *priv = dev_get_drvdata(d);
1520 ret = strict_strtoul(buf, 0, &val);
1522 IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
1524 priv->debug_level = val;
1525 if (iwl_alloc_traffic_mem(priv))
1527 "Not enough memory to generate traffic log\n");
1529 return strnlen(buf, count);
1532 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
1533 show_debug_level, store_debug_level);
1536 #endif /* CONFIG_IWLWIFI_DEBUG */
1539 static ssize_t show_temperature(struct device *d,
1540 struct device_attribute *attr, char *buf)
1542 struct iwl_priv *priv = dev_get_drvdata(d);
1544 if (!iwl_is_alive(priv))
1547 return sprintf(buf, "%d\n", priv->temperature);
1550 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
1552 static ssize_t show_tx_power(struct device *d,
1553 struct device_attribute *attr, char *buf)
1555 struct iwl_priv *priv = dev_get_drvdata(d);
1557 if (!iwl_is_ready_rf(priv))
1558 return sprintf(buf, "off\n");
1560 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
1563 static ssize_t store_tx_power(struct device *d,
1564 struct device_attribute *attr,
1565 const char *buf, size_t count)
1567 struct iwl_priv *priv = dev_get_drvdata(d);
1571 ret = strict_strtoul(buf, 10, &val);
1573 IWL_INFO(priv, "%s is not in decimal form.\n", buf);
1575 ret = iwl_set_tx_power(priv, val, false);
1577 IWL_ERR(priv, "failed setting tx power (0x%d).\n",
1585 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
1587 static ssize_t show_rts_ht_protection(struct device *d,
1588 struct device_attribute *attr, char *buf)
1590 struct iwl_priv *priv = dev_get_drvdata(d);
1592 return sprintf(buf, "%s\n",
1593 priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self");
1596 static ssize_t store_rts_ht_protection(struct device *d,
1597 struct device_attribute *attr,
1598 const char *buf, size_t count)
1600 struct iwl_priv *priv = dev_get_drvdata(d);
1604 ret = strict_strtoul(buf, 10, &val);
1606 IWL_INFO(priv, "Input is not in decimal form.\n");
1608 if (!iwl_is_associated(priv))
1609 priv->cfg->use_rts_for_ht = val ? true : false;
1611 IWL_ERR(priv, "Sta associated with AP - "
1612 "Change protection mechanism is not allowed\n");
1618 static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO,
1619 show_rts_ht_protection, store_rts_ht_protection);
1622 static struct attribute *iwl_sysfs_entries[] = {
1623 &dev_attr_temperature.attr,
1624 &dev_attr_tx_power.attr,
1625 &dev_attr_rts_ht_protection.attr,
1626 #ifdef CONFIG_IWLWIFI_DEBUG
1627 &dev_attr_debug_level.attr,
1632 static struct attribute_group iwl_attribute_group = {
1633 .name = NULL, /* put in device directory */
1634 .attrs = iwl_sysfs_entries,
1637 /******************************************************************************
1639 * uCode download functions
1641 ******************************************************************************/
1643 static void iwl_dealloc_ucode_pci(struct iwl_priv *priv)
1645 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1646 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1647 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1648 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1649 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1650 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
1653 static void iwl_nic_start(struct iwl_priv *priv)
1655 /* Remove all resets to allow NIC to operate */
1656 iwl_write32(priv, CSR_RESET, 0);
1659 struct iwlagn_ucode_capabilities {
1660 u32 max_probe_length;
1663 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
1664 static int iwl_mac_setup_register(struct iwl_priv *priv,
1665 struct iwlagn_ucode_capabilities *capa);
1667 static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
1669 const char *name_pre = priv->cfg->fw_name_pre;
1672 priv->fw_index = priv->cfg->ucode_api_max;
1676 if (priv->fw_index < priv->cfg->ucode_api_min) {
1677 IWL_ERR(priv, "no suitable firmware found!\n");
1681 sprintf(priv->firmware_name, "%s%d%s",
1682 name_pre, priv->fw_index, ".ucode");
1684 IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n",
1685 priv->firmware_name);
1687 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
1688 &priv->pci_dev->dev, GFP_KERNEL, priv,
1689 iwl_ucode_callback);
1692 struct iwlagn_firmware_pieces {
1693 const void *inst, *data, *init, *init_data, *boot;
1694 size_t inst_size, data_size, init_size, init_data_size, boot_size;
1699 static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
1700 const struct firmware *ucode_raw,
1701 struct iwlagn_firmware_pieces *pieces)
1703 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
1704 u32 api_ver, hdr_size;
1707 priv->ucode_ver = le32_to_cpu(ucode->ver);
1708 api_ver = IWL_UCODE_API(priv->ucode_ver);
1713 * 4965 doesn't revision the firmware file format
1714 * along with the API version, it always uses v1
1717 if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) !=
1718 CSR_HW_REV_TYPE_4965) {
1720 if (ucode_raw->size < hdr_size) {
1721 IWL_ERR(priv, "File size too small!\n");
1724 pieces->build = le32_to_cpu(ucode->u.v2.build);
1725 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
1726 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
1727 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
1728 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
1729 pieces->boot_size = le32_to_cpu(ucode->u.v2.boot_size);
1730 src = ucode->u.v2.data;
1733 /* fall through for 4965 */
1738 if (ucode_raw->size < hdr_size) {
1739 IWL_ERR(priv, "File size too small!\n");
1743 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
1744 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
1745 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
1746 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
1747 pieces->boot_size = le32_to_cpu(ucode->u.v1.boot_size);
1748 src = ucode->u.v1.data;
1752 /* Verify size of file vs. image size info in file's header */
1753 if (ucode_raw->size != hdr_size + pieces->inst_size +
1754 pieces->data_size + pieces->init_size +
1755 pieces->init_data_size + pieces->boot_size) {
1758 "uCode file size %d does not match expected size\n",
1759 (int)ucode_raw->size);
1764 src += pieces->inst_size;
1766 src += pieces->data_size;
1768 src += pieces->init_size;
1769 pieces->init_data = src;
1770 src += pieces->init_data_size;
1772 src += pieces->boot_size;
1777 static int iwlagn_wanted_ucode_alternative = 1;
1779 static int iwlagn_load_firmware(struct iwl_priv *priv,
1780 const struct firmware *ucode_raw,
1781 struct iwlagn_firmware_pieces *pieces,
1782 struct iwlagn_ucode_capabilities *capa)
1784 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
1785 struct iwl_ucode_tlv *tlv;
1786 size_t len = ucode_raw->size;
1788 int wanted_alternative = iwlagn_wanted_ucode_alternative, tmp;
1791 if (len < sizeof(*ucode))
1794 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC))
1798 * Check which alternatives are present, and "downgrade"
1799 * when the chosen alternative is not present, warning
1800 * the user when that happens. Some files may not have
1801 * any alternatives, so don't warn in that case.
1803 alternatives = le64_to_cpu(ucode->alternatives);
1804 tmp = wanted_alternative;
1805 if (wanted_alternative > 63)
1806 wanted_alternative = 63;
1807 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
1808 wanted_alternative--;
1809 if (wanted_alternative && wanted_alternative != tmp)
1811 "uCode alternative %d not available, choosing %d\n",
1812 tmp, wanted_alternative);
1814 priv->ucode_ver = le32_to_cpu(ucode->ver);
1815 pieces->build = le32_to_cpu(ucode->build);
1818 len -= sizeof(*ucode);
1820 while (len >= sizeof(*tlv)) {
1822 enum iwl_ucode_tlv_type tlv_type;
1826 len -= sizeof(*tlv);
1829 tlv_len = le32_to_cpu(tlv->length);
1830 tlv_type = le16_to_cpu(tlv->type);
1831 tlv_alt = le16_to_cpu(tlv->alternative);
1832 tlv_data = tlv->data;
1836 len -= ALIGN(tlv_len, 4);
1837 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
1840 * Alternative 0 is always valid.
1842 * Skip alternative TLVs that are not selected.
1844 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
1848 case IWL_UCODE_TLV_INST:
1849 pieces->inst = tlv_data;
1850 pieces->inst_size = tlv_len;
1852 case IWL_UCODE_TLV_DATA:
1853 pieces->data = tlv_data;
1854 pieces->data_size = tlv_len;
1856 case IWL_UCODE_TLV_INIT:
1857 pieces->init = tlv_data;
1858 pieces->init_size = tlv_len;
1860 case IWL_UCODE_TLV_INIT_DATA:
1861 pieces->init_data = tlv_data;
1862 pieces->init_data_size = tlv_len;
1864 case IWL_UCODE_TLV_BOOT:
1865 pieces->boot = tlv_data;
1866 pieces->boot_size = tlv_len;
1868 case IWL_UCODE_TLV_PROBE_MAX_LEN:
1871 capa->max_probe_length =
1872 le32_to_cpup((__le32 *)tlv_data);
1886 * iwl_ucode_callback - callback when firmware was loaded
1888 * If loaded successfully, copies the firmware into buffers
1889 * for the card to fetch (via DMA).
1891 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
1893 struct iwl_priv *priv = context;
1894 struct iwl_ucode_header *ucode;
1896 struct iwlagn_firmware_pieces pieces;
1897 const unsigned int api_max = priv->cfg->ucode_api_max;
1898 const unsigned int api_min = priv->cfg->ucode_api_min;
1902 struct iwlagn_ucode_capabilities ucode_capa = {
1903 .max_probe_length = 200,
1906 memset(&pieces, 0, sizeof(pieces));
1909 IWL_ERR(priv, "request for firmware file '%s' failed.\n",
1910 priv->firmware_name);
1914 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
1915 priv->firmware_name, ucode_raw->size);
1917 /* Make sure that we got at least the API version number */
1918 if (ucode_raw->size < 4) {
1919 IWL_ERR(priv, "File size way too small!\n");
1923 /* Data from ucode file: header followed by uCode images */
1924 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1927 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
1929 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
1935 api_ver = IWL_UCODE_API(priv->ucode_ver);
1936 build = pieces.build;
1939 * api_ver should match the api version forming part of the
1940 * firmware filename ... but we don't check for that and only rely
1941 * on the API version read from firmware header from here on forward
1943 if (api_ver < api_min || api_ver > api_max) {
1944 IWL_ERR(priv, "Driver unable to support your firmware API. "
1945 "Driver supports v%u, firmware is v%u.\n",
1950 if (api_ver != api_max)
1951 IWL_ERR(priv, "Firmware has old API version. Expected v%u, "
1952 "got v%u. New firmware can be obtained "
1953 "from http://www.intellinuxwireless.org.\n",
1957 sprintf(buildstr, " build %u", build);
1961 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
1962 IWL_UCODE_MAJOR(priv->ucode_ver),
1963 IWL_UCODE_MINOR(priv->ucode_ver),
1964 IWL_UCODE_API(priv->ucode_ver),
1965 IWL_UCODE_SERIAL(priv->ucode_ver),
1968 snprintf(priv->hw->wiphy->fw_version,
1969 sizeof(priv->hw->wiphy->fw_version),
1971 IWL_UCODE_MAJOR(priv->ucode_ver),
1972 IWL_UCODE_MINOR(priv->ucode_ver),
1973 IWL_UCODE_API(priv->ucode_ver),
1974 IWL_UCODE_SERIAL(priv->ucode_ver),
1978 * For any of the failures below (before allocating pci memory)
1979 * we will try to load a version with a smaller API -- maybe the
1980 * user just got a corrupted version of the latest API.
1983 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1985 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1987 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1989 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1991 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1992 pieces.init_data_size);
1993 IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %Zd\n",
1996 /* Verify that uCode images will fit in card's SRAM */
1997 if (pieces.inst_size > priv->hw_params.max_inst_size) {
1998 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
2003 if (pieces.data_size > priv->hw_params.max_data_size) {
2004 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
2009 if (pieces.init_size > priv->hw_params.max_inst_size) {
2010 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
2015 if (pieces.init_data_size > priv->hw_params.max_data_size) {
2016 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
2017 pieces.init_data_size);
2021 if (pieces.boot_size > priv->hw_params.max_bsm_size) {
2022 IWL_ERR(priv, "uCode boot instr len %Zd too large to fit in\n",
2027 /* Allocate ucode buffers for card's bus-master loading ... */
2029 /* Runtime instructions and 2 copies of data:
2030 * 1) unmodified from disk
2031 * 2) backup cache for save/restore during power-downs */
2032 priv->ucode_code.len = pieces.inst_size;
2033 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
2035 priv->ucode_data.len = pieces.data_size;
2036 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
2038 priv->ucode_data_backup.len = pieces.data_size;
2039 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
2041 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
2042 !priv->ucode_data_backup.v_addr)
2045 /* Initialization instructions and data */
2046 if (pieces.init_size && pieces.init_data_size) {
2047 priv->ucode_init.len = pieces.init_size;
2048 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
2050 priv->ucode_init_data.len = pieces.init_data_size;
2051 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
2053 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
2057 /* Bootstrap (instructions only, no data) */
2058 if (pieces.boot_size) {
2059 priv->ucode_boot.len = pieces.boot_size;
2060 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
2062 if (!priv->ucode_boot.v_addr)
2066 /* Copy images into buffers for card's bus-master reads ... */
2068 /* Runtime instructions (first block of data in file) */
2069 IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n",
2071 memcpy(priv->ucode_code.v_addr, pieces.inst, pieces.inst_size);
2073 IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2074 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
2078 * NOTE: Copy into backup buffer will be done in iwl_up()
2080 IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n",
2082 memcpy(priv->ucode_data.v_addr, pieces.data, pieces.data_size);
2083 memcpy(priv->ucode_data_backup.v_addr, pieces.data, pieces.data_size);
2085 /* Initialization instructions */
2086 if (pieces.init_size) {
2087 IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n",
2089 memcpy(priv->ucode_init.v_addr, pieces.init, pieces.init_size);
2092 /* Initialization data */
2093 if (pieces.init_data_size) {
2094 IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n",
2095 pieces.init_data_size);
2096 memcpy(priv->ucode_init_data.v_addr, pieces.init_data,
2097 pieces.init_data_size);
2100 /* Bootstrap instructions */
2101 IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n",
2103 memcpy(priv->ucode_boot.v_addr, pieces.boot, pieces.boot_size);
2105 /**************************************************
2106 * This is still part of probe() in a sense...
2108 * 9. Setup and register with mac80211 and debugfs
2109 **************************************************/
2110 err = iwl_mac_setup_register(priv, &ucode_capa);
2114 err = iwl_dbgfs_register(priv, DRV_NAME);
2116 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
2118 err = sysfs_create_group(&priv->pci_dev->dev.kobj,
2119 &iwl_attribute_group);
2121 IWL_ERR(priv, "failed to create sysfs device attributes\n");
2125 /* We have our copies now, allow OS release its copies */
2126 release_firmware(ucode_raw);
2127 complete(&priv->_agn.firmware_loading_complete);
2131 /* try next, if any */
2132 if (iwl_request_firmware(priv, false))
2134 release_firmware(ucode_raw);
2138 IWL_ERR(priv, "failed to allocate pci memory\n");
2139 iwl_dealloc_ucode_pci(priv);
2141 complete(&priv->_agn.firmware_loading_complete);
2142 device_release_driver(&priv->pci_dev->dev);
2143 release_firmware(ucode_raw);
2146 static const char *desc_lookup_text[] = {
2151 "NMI_INTERRUPT_WDG",
2155 "HW_ERROR_TUNE_LOCK",
2156 "HW_ERROR_TEMPERATURE",
2157 "ILLEGAL_CHAN_FREQ",
2160 "NMI_INTERRUPT_HOST",
2161 "NMI_INTERRUPT_ACTION_PT",
2162 "NMI_INTERRUPT_UNKNOWN",
2163 "UCODE_VERSION_MISMATCH",
2164 "HW_ERROR_ABS_LOCK",
2165 "HW_ERROR_CAL_LOCK_FAIL",
2166 "NMI_INTERRUPT_INST_ACTION_PT",
2167 "NMI_INTERRUPT_DATA_ACTION_PT",
2169 "NMI_INTERRUPT_TRM",
2170 "NMI_INTERRUPT_BREAK_POINT"
2175 "ADVANCED SYSASSERT"
2178 static const char *desc_lookup(int i)
2180 int max = ARRAY_SIZE(desc_lookup_text) - 1;
2182 if (i < 0 || i > max)
2185 return desc_lookup_text[i];
2188 #define ERROR_START_OFFSET (1 * sizeof(u32))
2189 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
2191 void iwl_dump_nic_error_log(struct iwl_priv *priv)
2194 u32 desc, time, count, base, data1;
2195 u32 blink1, blink2, ilink1, ilink2;
2198 if (priv->ucode_type == UCODE_INIT)
2199 base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
2201 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
2203 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
2205 "Not valid error log pointer 0x%08X for %s uCode\n",
2206 base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
2210 count = iwl_read_targ_mem(priv, base);
2212 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
2213 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
2214 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
2215 priv->status, count);
2218 desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
2219 pc = iwl_read_targ_mem(priv, base + 2 * sizeof(u32));
2220 blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
2221 blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
2222 ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
2223 ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
2224 data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
2225 data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
2226 line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
2227 time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
2228 hcmd = iwl_read_targ_mem(priv, base + 22 * sizeof(u32));
2230 trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line,
2231 blink1, blink2, ilink1, ilink2);
2233 IWL_ERR(priv, "Desc Time "
2234 "data1 data2 line\n");
2235 IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
2236 desc_lookup(desc), desc, time, data1, data2, line);
2237 IWL_ERR(priv, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
2238 IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
2239 pc, blink1, blink2, ilink1, ilink2, hcmd);
2242 #define EVENT_START_OFFSET (4 * sizeof(u32))
2245 * iwl_print_event_log - Dump error event log to syslog
2248 static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
2249 u32 num_events, u32 mode,
2250 int pos, char **buf, size_t bufsz)
2253 u32 base; /* SRAM byte address of event log header */
2254 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
2255 u32 ptr; /* SRAM byte address of log data */
2256 u32 ev, time, data; /* event log data */
2257 unsigned long reg_flags;
2259 if (num_events == 0)
2261 if (priv->ucode_type == UCODE_INIT)
2262 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
2264 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
2267 event_size = 2 * sizeof(u32);
2269 event_size = 3 * sizeof(u32);
2271 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
2273 /* Make sure device is powered up for SRAM reads */
2274 spin_lock_irqsave(&priv->reg_lock, reg_flags);
2275 iwl_grab_nic_access(priv);
2277 /* Set starting address; reads will auto-increment */
2278 _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
2281 /* "time" is actually "data" for mode 0 (no timestamp).
2282 * place event id # at far right for easier visual parsing. */
2283 for (i = 0; i < num_events; i++) {
2284 ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
2285 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
2289 pos += scnprintf(*buf + pos, bufsz - pos,
2290 "EVT_LOG:0x%08x:%04u\n",
2293 trace_iwlwifi_dev_ucode_event(priv, 0,
2295 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
2299 data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
2301 pos += scnprintf(*buf + pos, bufsz - pos,
2302 "EVT_LOGT:%010u:0x%08x:%04u\n",
2305 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
2307 trace_iwlwifi_dev_ucode_event(priv, time,
2313 /* Allow device to power down */
2314 iwl_release_nic_access(priv);
2315 spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
2320 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
2322 static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
2323 u32 num_wraps, u32 next_entry,
2325 int pos, char **buf, size_t bufsz)
2328 * display the newest DEFAULT_LOG_ENTRIES entries
2329 * i.e the entries just before the next ont that uCode would fill.
2332 if (next_entry < size) {
2333 pos = iwl_print_event_log(priv,
2334 capacity - (size - next_entry),
2335 size - next_entry, mode,
2337 pos = iwl_print_event_log(priv, 0,
2341 pos = iwl_print_event_log(priv, next_entry - size,
2342 size, mode, pos, buf, bufsz);
2344 if (next_entry < size) {
2345 pos = iwl_print_event_log(priv, 0, next_entry,
2346 mode, pos, buf, bufsz);
2348 pos = iwl_print_event_log(priv, next_entry - size,
2349 size, mode, pos, buf, bufsz);
2355 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
2357 int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
2358 char **buf, bool display)
2360 u32 base; /* SRAM byte address of event log header */
2361 u32 capacity; /* event log capacity in # entries */
2362 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
2363 u32 num_wraps; /* # times uCode wrapped to top of log */
2364 u32 next_entry; /* index of next entry to be written by uCode */
2365 u32 size; /* # entries that we'll print */
2369 if (priv->ucode_type == UCODE_INIT)
2370 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
2372 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
2374 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
2376 "Invalid event log pointer 0x%08X for %s uCode\n",
2377 base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
2381 /* event log header */
2382 capacity = iwl_read_targ_mem(priv, base);
2383 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
2384 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
2385 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
2387 if (capacity > priv->cfg->max_event_log_size) {
2388 IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n",
2389 capacity, priv->cfg->max_event_log_size);
2390 capacity = priv->cfg->max_event_log_size;
2393 if (next_entry > priv->cfg->max_event_log_size) {
2394 IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
2395 next_entry, priv->cfg->max_event_log_size);
2396 next_entry = priv->cfg->max_event_log_size;
2399 size = num_wraps ? capacity : next_entry;
2401 /* bail out if nothing in log */
2403 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
2407 #ifdef CONFIG_IWLWIFI_DEBUG
2408 if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log)
2409 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2410 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2412 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2413 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2415 IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
2418 #ifdef CONFIG_IWLWIFI_DEBUG
2421 bufsz = capacity * 48;
2424 *buf = kmalloc(bufsz, GFP_KERNEL);
2428 if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
2430 * if uCode has wrapped back to top of log,
2431 * start at the oldest entry,
2432 * i.e the next one that uCode would fill.
2435 pos = iwl_print_event_log(priv, next_entry,
2436 capacity - next_entry, mode,
2438 /* (then/else) start at top of log */
2439 pos = iwl_print_event_log(priv, 0,
2440 next_entry, mode, pos, buf, bufsz);
2442 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2443 next_entry, size, mode,
2446 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2447 next_entry, size, mode,
2454 * iwl_alive_start - called after REPLY_ALIVE notification received
2455 * from protocol/runtime uCode (initialization uCode's
2456 * Alive gets handled by iwl_init_alive_start()).
2458 static void iwl_alive_start(struct iwl_priv *priv)
2462 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
2464 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
2465 /* We had an error bringing up the hardware, so take it
2466 * all the way back down so we can try again */
2467 IWL_DEBUG_INFO(priv, "Alive failed.\n");
2471 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2472 * This is a paranoid check, because we would not have gotten the
2473 * "runtime" alive if code weren't properly loaded. */
2474 if (iwl_verify_ucode(priv)) {
2475 /* Runtime instruction load was bad;
2476 * take it all the way back down so we can try again */
2477 IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
2481 ret = priv->cfg->ops->lib->alive_notify(priv);
2484 "Could not complete ALIVE transition [ntf]: %d\n", ret);
2488 /* After the ALIVE response, we can send host commands to the uCode */
2489 set_bit(STATUS_ALIVE, &priv->status);
2491 if (priv->cfg->ops->lib->recover_from_tx_stall) {
2492 /* Enable timer to monitor the driver queues */
2493 mod_timer(&priv->monitor_recover,
2495 msecs_to_jiffies(priv->cfg->monitor_recover_period));
2498 if (iwl_is_rfkill(priv))
2501 ieee80211_wake_queues(priv->hw);
2503 priv->active_rate = IWL_RATES_MASK;
2505 /* Configure Tx antenna selection based on H/W config */
2506 if (priv->cfg->ops->hcmd->set_tx_ant)
2507 priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant);
2509 if (iwl_is_associated(priv)) {
2510 struct iwl_rxon_cmd *active_rxon =
2511 (struct iwl_rxon_cmd *)&priv->active_rxon;
2512 /* apply any changes in staging */
2513 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2514 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2516 /* Initialize our rx_config data */
2517 iwl_connection_init_rx_config(priv, NULL);
2519 if (priv->cfg->ops->hcmd->set_rxon_chain)
2520 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2522 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2525 /* Configure Bluetooth device coexistence support */
2526 priv->cfg->ops->hcmd->send_bt_config(priv);
2528 iwl_reset_run_time_calib(priv);
2530 /* Configure the adapter for unassociated operation */
2531 iwlcore_commit_rxon(priv);
2533 /* At this point, the NIC is initialized and operational */
2534 iwl_rf_kill_ct_config(priv);
2536 iwl_leds_init(priv);
2538 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
2539 set_bit(STATUS_READY, &priv->status);
2540 wake_up_interruptible(&priv->wait_command_queue);
2542 iwl_power_update_mode(priv, true);
2543 IWL_DEBUG_INFO(priv, "Updated power mode\n");
2549 queue_work(priv->workqueue, &priv->restart);
2552 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
2554 static void __iwl_down(struct iwl_priv *priv)
2556 unsigned long flags;
2557 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
2559 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
2562 set_bit(STATUS_EXIT_PENDING, &priv->status);
2564 iwl_clear_ucode_stations(priv);
2565 iwl_dealloc_bcast_station(priv);
2566 iwl_clear_driver_stations(priv);
2568 /* Unblock any waiting calls */
2569 wake_up_interruptible_all(&priv->wait_command_queue);
2571 /* Wipe out the EXIT_PENDING status bit if we are not actually
2572 * exiting the module */
2574 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2576 /* stop and reset the on-board processor */
2577 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
2579 /* tell the device to stop sending interrupts */
2580 spin_lock_irqsave(&priv->lock, flags);
2581 iwl_disable_interrupts(priv);
2582 spin_unlock_irqrestore(&priv->lock, flags);
2583 iwl_synchronize_irq(priv);
2585 if (priv->mac80211_registered)
2586 ieee80211_stop_queues(priv->hw);
2588 /* If we have not previously called iwl_init() then
2589 * clear all bits but the RF Kill bit and return */
2590 if (!iwl_is_init(priv)) {
2591 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2593 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2594 STATUS_GEO_CONFIGURED |
2595 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2596 STATUS_EXIT_PENDING;
2600 /* ...otherwise clear out all the status bits but the RF Kill
2601 * bit and continue taking the NIC down. */
2602 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2604 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2605 STATUS_GEO_CONFIGURED |
2606 test_bit(STATUS_FW_ERROR, &priv->status) <<
2608 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2609 STATUS_EXIT_PENDING;
2611 /* device going down, Stop using ICT table */
2612 iwl_disable_ict(priv);
2614 iwlagn_txq_ctx_stop(priv);
2615 iwlagn_rxq_stop(priv);
2617 /* Power-down device's busmaster DMA clocks */
2618 iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
2621 /* Make sure (redundant) we've released our request to stay awake */
2622 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
2624 /* Stop the device, and put it in low power state */
2625 priv->cfg->ops->lib->apm_ops.stop(priv);
2628 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
2630 if (priv->ibss_beacon)
2631 dev_kfree_skb(priv->ibss_beacon);
2632 priv->ibss_beacon = NULL;
2634 /* clear out any free frames */
2635 iwl_clear_free_frames(priv);
2638 static void iwl_down(struct iwl_priv *priv)
2640 mutex_lock(&priv->mutex);
2642 mutex_unlock(&priv->mutex);
2644 iwl_cancel_deferred_work(priv);
2647 #define HW_READY_TIMEOUT (50)
2649 static int iwl_set_hw_ready(struct iwl_priv *priv)
2653 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
2654 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY);
2656 /* See if we got it */
2657 ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
2658 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
2659 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
2661 if (ret != -ETIMEDOUT)
2662 priv->hw_ready = true;
2664 priv->hw_ready = false;
2666 IWL_DEBUG_INFO(priv, "hardware %s\n",
2667 (priv->hw_ready == 1) ? "ready" : "not ready");
2671 static int iwl_prepare_card_hw(struct iwl_priv *priv)
2675 IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter\n");
2677 ret = iwl_set_hw_ready(priv);
2681 /* If HW is not ready, prepare the conditions to check again */
2682 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
2683 CSR_HW_IF_CONFIG_REG_PREPARE);
2685 ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
2686 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
2687 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
2689 /* HW should be ready by now, check again. */
2690 if (ret != -ETIMEDOUT)
2691 iwl_set_hw_ready(priv);
2696 #define MAX_HW_RESTARTS 5
2698 static int __iwl_up(struct iwl_priv *priv)
2703 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2704 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
2708 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
2709 IWL_ERR(priv, "ucode not available for device bringup\n");
2713 ret = iwl_alloc_bcast_station(priv, true);
2717 iwl_prepare_card_hw(priv);
2719 if (!priv->hw_ready) {
2720 IWL_WARN(priv, "Exit HW not ready\n");
2724 /* If platform's RF_KILL switch is NOT set to KILL */
2725 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2726 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2728 set_bit(STATUS_RF_KILL_HW, &priv->status);
2730 if (iwl_is_rfkill(priv)) {
2731 wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
2733 iwl_enable_interrupts(priv);
2734 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
2738 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2740 ret = iwlagn_hw_nic_init(priv);
2742 IWL_ERR(priv, "Unable to init nic\n");
2746 /* make sure rfkill handshake bits are cleared */
2747 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2748 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2749 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2751 /* clear (again), then enable host interrupts */
2752 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2753 iwl_enable_interrupts(priv);
2755 /* really make sure rfkill handshake bits are cleared */
2756 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2757 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2759 /* Copy original ucode data image from disk into backup cache.
2760 * This will be used to initialize the on-board processor's
2761 * data SRAM for a clean start when the runtime program first loads. */
2762 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
2763 priv->ucode_data.len);
2765 for (i = 0; i < MAX_HW_RESTARTS; i++) {
2767 /* load bootstrap state machine,
2768 * load bootstrap program into processor's memory,
2769 * prepare to load the "initialize" uCode */
2770 ret = priv->cfg->ops->lib->load_ucode(priv);
2773 IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n",
2778 /* start card; "initialize" will load runtime ucode */
2779 iwl_nic_start(priv);
2781 IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
2786 set_bit(STATUS_EXIT_PENDING, &priv->status);
2788 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2790 /* tried to restart and config the device for as long as our
2791 * patience could withstand */
2792 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
2797 /*****************************************************************************
2799 * Workqueue callbacks
2801 *****************************************************************************/
2803 static void iwl_bg_init_alive_start(struct work_struct *data)
2805 struct iwl_priv *priv =
2806 container_of(data, struct iwl_priv, init_alive_start.work);
2808 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2811 mutex_lock(&priv->mutex);
2812 priv->cfg->ops->lib->init_alive_start(priv);
2813 mutex_unlock(&priv->mutex);
2816 static void iwl_bg_alive_start(struct work_struct *data)
2818 struct iwl_priv *priv =
2819 container_of(data, struct iwl_priv, alive_start.work);
2821 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2824 /* enable dram interrupt */
2825 iwl_reset_ict(priv);
2827 mutex_lock(&priv->mutex);
2828 iwl_alive_start(priv);
2829 mutex_unlock(&priv->mutex);
2832 static void iwl_bg_run_time_calib_work(struct work_struct *work)
2834 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2835 run_time_calib_work);
2837 mutex_lock(&priv->mutex);
2839 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
2840 test_bit(STATUS_SCANNING, &priv->status)) {
2841 mutex_unlock(&priv->mutex);
2845 if (priv->start_calib) {
2846 iwl_chain_noise_calibration(priv, &priv->statistics);
2848 iwl_sensitivity_calibration(priv, &priv->statistics);
2851 mutex_unlock(&priv->mutex);
2854 static void iwl_bg_restart(struct work_struct *data)
2856 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
2858 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2861 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
2862 mutex_lock(&priv->mutex);
2865 mutex_unlock(&priv->mutex);
2867 ieee80211_restart_hw(priv->hw);
2871 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2874 mutex_lock(&priv->mutex);
2876 mutex_unlock(&priv->mutex);
2880 static void iwl_bg_rx_replenish(struct work_struct *data)
2882 struct iwl_priv *priv =
2883 container_of(data, struct iwl_priv, rx_replenish);
2885 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2888 mutex_lock(&priv->mutex);
2889 iwlagn_rx_replenish(priv);
2890 mutex_unlock(&priv->mutex);
2893 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2895 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
2897 struct ieee80211_conf *conf = NULL;
2900 if (!vif || !priv->is_open)
2903 if (vif->type == NL80211_IFTYPE_AP) {
2904 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
2908 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2911 iwl_scan_cancel_timeout(priv, 200);
2913 conf = ieee80211_get_hw_conf(priv->hw);
2915 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2916 iwlcore_commit_rxon(priv);
2918 iwl_setup_rxon_timing(priv, vif);
2919 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
2920 sizeof(priv->rxon_timing), &priv->rxon_timing);
2922 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
2923 "Attempting to continue.\n");
2925 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2927 iwl_set_rxon_ht(priv, &priv->current_ht_config);
2929 if (priv->cfg->ops->hcmd->set_rxon_chain)
2930 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2932 priv->staging_rxon.assoc_id = cpu_to_le16(vif->bss_conf.aid);
2934 IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
2935 vif->bss_conf.aid, vif->bss_conf.beacon_int);
2937 if (vif->bss_conf.assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
2938 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
2940 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
2942 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
2943 if (vif->bss_conf.assoc_capability &
2944 WLAN_CAPABILITY_SHORT_SLOT_TIME)
2945 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
2947 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
2949 if (vif->type == NL80211_IFTYPE_ADHOC)
2950 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
2953 iwlcore_commit_rxon(priv);
2955 IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
2956 vif->bss_conf.aid, priv->active_rxon.bssid_addr);
2958 switch (vif->type) {
2959 case NL80211_IFTYPE_STATION:
2961 case NL80211_IFTYPE_ADHOC:
2962 iwl_send_beacon_cmd(priv);
2965 IWL_ERR(priv, "%s Should not be called in %d mode\n",
2966 __func__, vif->type);
2970 /* the chain noise calibration will enabled PM upon completion
2971 * If chain noise has already been run, then we need to enable
2972 * power management here */
2973 if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
2974 iwl_power_update_mode(priv, false);
2976 /* Enable Rx differential gain and sensitivity calibrations */
2977 iwl_chain_noise_reset(priv);
2978 priv->start_calib = 1;
2982 /*****************************************************************************
2984 * mac80211 entry point functions
2986 *****************************************************************************/
2988 #define UCODE_READY_TIMEOUT (4 * HZ)
2991 * Not a mac80211 entry point function, but it fits in with all the
2992 * other mac80211 functions grouped here.
2994 static int iwl_mac_setup_register(struct iwl_priv *priv,
2995 struct iwlagn_ucode_capabilities *capa)
2998 struct ieee80211_hw *hw = priv->hw;
2999 hw->rate_control_algorithm = "iwl-agn-rs";
3001 /* Tell mac80211 our characteristics */
3002 hw->flags = IEEE80211_HW_SIGNAL_DBM |
3003 IEEE80211_HW_AMPDU_AGGREGATION |
3004 IEEE80211_HW_SPECTRUM_MGMT;
3006 if (!priv->cfg->broken_powersave)
3007 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
3008 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
3010 if (priv->cfg->sku & IWL_SKU_N)
3011 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
3012 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
3014 hw->sta_data_size = sizeof(struct iwl_station_priv);
3015 hw->vif_data_size = sizeof(struct iwl_vif_priv);
3017 hw->wiphy->interface_modes =
3018 BIT(NL80211_IFTYPE_STATION) |
3019 BIT(NL80211_IFTYPE_ADHOC);
3021 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
3022 WIPHY_FLAG_DISABLE_BEACON_HINTS;
3025 * For now, disable PS by default because it affects
3026 * RX performance significantly.
3028 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
3030 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
3031 /* we create the 802.11 header and a zero-length SSID element */
3032 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
3034 /* Default value; 4 EDCA QOS priorities */
3037 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
3039 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
3040 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
3041 &priv->bands[IEEE80211_BAND_2GHZ];
3042 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
3043 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
3044 &priv->bands[IEEE80211_BAND_5GHZ];
3046 ret = ieee80211_register_hw(priv->hw);
3048 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
3051 priv->mac80211_registered = 1;
3057 static int iwl_mac_start(struct ieee80211_hw *hw)
3059 struct iwl_priv *priv = hw->priv;
3062 IWL_DEBUG_MAC80211(priv, "enter\n");
3064 /* we should be verifying the device is ready to be opened */
3065 mutex_lock(&priv->mutex);
3066 ret = __iwl_up(priv);
3067 mutex_unlock(&priv->mutex);
3072 if (iwl_is_rfkill(priv))
3075 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
3077 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
3078 * mac80211 will not be run successfully. */
3079 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
3080 test_bit(STATUS_READY, &priv->status),
3081 UCODE_READY_TIMEOUT);
3083 if (!test_bit(STATUS_READY, &priv->status)) {
3084 IWL_ERR(priv, "START_ALIVE timeout after %dms.\n",
3085 jiffies_to_msecs(UCODE_READY_TIMEOUT));
3090 iwl_led_start(priv);
3094 IWL_DEBUG_MAC80211(priv, "leave\n");
3098 static void iwl_mac_stop(struct ieee80211_hw *hw)
3100 struct iwl_priv *priv = hw->priv;
3102 IWL_DEBUG_MAC80211(priv, "enter\n");
3109 if (iwl_is_ready_rf(priv) || test_bit(STATUS_SCAN_HW, &priv->status)) {
3110 /* stop mac, cancel any scan request and clear
3111 * RXON_FILTER_ASSOC_MSK BIT
3113 mutex_lock(&priv->mutex);
3114 iwl_scan_cancel_timeout(priv, 100);
3115 mutex_unlock(&priv->mutex);
3120 flush_workqueue(priv->workqueue);
3122 /* enable interrupts again in order to receive rfkill changes */
3123 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
3124 iwl_enable_interrupts(priv);
3126 IWL_DEBUG_MAC80211(priv, "leave\n");
3129 static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3131 struct iwl_priv *priv = hw->priv;
3133 IWL_DEBUG_MACDUMP(priv, "enter\n");
3135 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
3136 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
3138 if (iwlagn_tx_skb(priv, skb))
3139 dev_kfree_skb_any(skb);
3141 IWL_DEBUG_MACDUMP(priv, "leave\n");
3142 return NETDEV_TX_OK;
3145 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
3149 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3152 /* The following should be done only at AP bring up */
3153 if (!iwl_is_associated(priv)) {
3155 /* RXON - unassoc (to set timing command) */
3156 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3157 iwlcore_commit_rxon(priv);
3160 iwl_setup_rxon_timing(priv, vif);
3161 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
3162 sizeof(priv->rxon_timing), &priv->rxon_timing);
3164 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
3165 "Attempting to continue.\n");
3167 /* AP has all antennas */
3168 priv->chain_noise_data.active_chains =
3169 priv->hw_params.valid_rx_ant;
3170 iwl_set_rxon_ht(priv, &priv->current_ht_config);
3171 if (priv->cfg->ops->hcmd->set_rxon_chain)
3172 priv->cfg->ops->hcmd->set_rxon_chain(priv);
3174 priv->staging_rxon.assoc_id = 0;
3176 if (vif->bss_conf.assoc_capability &
3177 WLAN_CAPABILITY_SHORT_PREAMBLE)
3178 priv->staging_rxon.flags |=
3179 RXON_FLG_SHORT_PREAMBLE_MSK;
3181 priv->staging_rxon.flags &=
3182 ~RXON_FLG_SHORT_PREAMBLE_MSK;
3184 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
3185 if (vif->bss_conf.assoc_capability &
3186 WLAN_CAPABILITY_SHORT_SLOT_TIME)
3187 priv->staging_rxon.flags |=
3188 RXON_FLG_SHORT_SLOT_MSK;
3190 priv->staging_rxon.flags &=
3191 ~RXON_FLG_SHORT_SLOT_MSK;
3193 if (vif->type == NL80211_IFTYPE_ADHOC)
3194 priv->staging_rxon.flags &=
3195 ~RXON_FLG_SHORT_SLOT_MSK;
3197 /* restore RXON assoc */
3198 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
3199 iwlcore_commit_rxon(priv);
3201 iwl_send_beacon_cmd(priv);
3203 /* FIXME - we need to add code here to detect a totally new
3204 * configuration, reset the AP, unassoc, rxon timing, assoc,
3205 * clear sta table, add BCAST sta... */
3208 static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw,
3209 struct ieee80211_vif *vif,
3210 struct ieee80211_key_conf *keyconf,
3211 struct ieee80211_sta *sta,
3212 u32 iv32, u16 *phase1key)
3215 struct iwl_priv *priv = hw->priv;
3216 IWL_DEBUG_MAC80211(priv, "enter\n");
3218 iwl_update_tkip_key(priv, keyconf, sta,
3221 IWL_DEBUG_MAC80211(priv, "leave\n");
3224 static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3225 struct ieee80211_vif *vif,
3226 struct ieee80211_sta *sta,
3227 struct ieee80211_key_conf *key)
3229 struct iwl_priv *priv = hw->priv;
3232 bool is_default_wep_key = false;
3234 IWL_DEBUG_MAC80211(priv, "enter\n");
3236 if (priv->cfg->mod_params->sw_crypto) {
3237 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
3242 sta_id = iwl_sta_id(sta);
3244 if (sta_id == IWL_INVALID_STATION) {
3245 IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
3250 sta_id = priv->hw_params.bcast_sta_id;
3253 mutex_lock(&priv->mutex);
3254 iwl_scan_cancel_timeout(priv, 100);
3257 * If we are getting WEP group key and we didn't receive any key mapping
3258 * so far, we are in legacy wep mode (group key only), otherwise we are
3260 * In legacy wep mode, we use another host command to the uCode.
3262 if (key->alg == ALG_WEP && !sta && vif->type != NL80211_IFTYPE_AP) {
3264 is_default_wep_key = !priv->key_mapping_key;
3266 is_default_wep_key =
3267 (key->hw_key_idx == HW_KEY_DEFAULT);
3272 if (is_default_wep_key)
3273 ret = iwl_set_default_wep_key(priv, key);
3275 ret = iwl_set_dynamic_key(priv, key, sta_id);
3277 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
3280 if (is_default_wep_key)
3281 ret = iwl_remove_default_wep_key(priv, key);
3283 ret = iwl_remove_dynamic_key(priv, key, sta_id);
3285 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
3291 mutex_unlock(&priv->mutex);
3292 IWL_DEBUG_MAC80211(priv, "leave\n");
3297 static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
3298 struct ieee80211_vif *vif,
3299 enum ieee80211_ampdu_mlme_action action,
3300 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
3302 struct iwl_priv *priv = hw->priv;
3305 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
3308 if (!(priv->cfg->sku & IWL_SKU_N))
3312 case IEEE80211_AMPDU_RX_START:
3313 IWL_DEBUG_HT(priv, "start Rx\n");
3314 return iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
3315 case IEEE80211_AMPDU_RX_STOP:
3316 IWL_DEBUG_HT(priv, "stop Rx\n");
3317 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
3318 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3322 case IEEE80211_AMPDU_TX_START:
3323 IWL_DEBUG_HT(priv, "start Tx\n");
3324 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
3326 priv->_agn.agg_tids_count++;
3327 IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
3328 priv->_agn.agg_tids_count);
3331 case IEEE80211_AMPDU_TX_STOP:
3332 IWL_DEBUG_HT(priv, "stop Tx\n");
3333 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
3334 if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) {
3335 priv->_agn.agg_tids_count--;
3336 IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
3337 priv->_agn.agg_tids_count);
3339 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3343 case IEEE80211_AMPDU_TX_OPERATIONAL:
3347 IWL_DEBUG_HT(priv, "unknown\n");
3354 static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
3355 struct ieee80211_vif *vif,
3356 enum sta_notify_cmd cmd,
3357 struct ieee80211_sta *sta)
3359 struct iwl_priv *priv = hw->priv;
3360 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
3364 case STA_NOTIFY_SLEEP:
3365 WARN_ON(!sta_priv->client);
3366 sta_priv->asleep = true;
3367 if (atomic_read(&sta_priv->pending_frames) > 0)
3368 ieee80211_sta_block_awake(hw, sta, true);
3370 case STA_NOTIFY_AWAKE:
3371 WARN_ON(!sta_priv->client);
3372 if (!sta_priv->asleep)
3374 sta_priv->asleep = false;
3375 sta_id = iwl_sta_id(sta);
3376 if (sta_id != IWL_INVALID_STATION)
3377 iwl_sta_modify_ps_wake(priv, sta_id);
3384 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
3385 struct ieee80211_vif *vif,
3386 struct ieee80211_sta *sta)
3388 struct iwl_priv *priv = hw->priv;
3389 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
3390 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
3394 sta_priv->common.sta_id = IWL_INVALID_STATION;
3396 IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
3399 atomic_set(&sta_priv->pending_frames, 0);
3400 if (vif->type == NL80211_IFTYPE_AP)
3401 sta_priv->client = true;
3403 ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap,
3406 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
3408 /* Should we return success if return code is EEXIST ? */
3412 sta_priv->common.sta_id = sta_id;
3414 /* Initialize rate scaling */
3415 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
3417 iwl_rs_rate_init(priv, sta, sta_id);
3422 /*****************************************************************************
3424 * driver setup and teardown
3426 *****************************************************************************/
3428 static void iwl_setup_deferred_work(struct iwl_priv *priv)
3430 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
3432 init_waitqueue_head(&priv->wait_command_queue);
3434 INIT_WORK(&priv->restart, iwl_bg_restart);
3435 INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish);
3436 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
3437 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
3438 INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
3439 INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
3441 iwl_setup_scan_deferred_work(priv);
3443 if (priv->cfg->ops->lib->setup_deferred_work)
3444 priv->cfg->ops->lib->setup_deferred_work(priv);
3446 init_timer(&priv->statistics_periodic);
3447 priv->statistics_periodic.data = (unsigned long)priv;
3448 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
3450 init_timer(&priv->ucode_trace);
3451 priv->ucode_trace.data = (unsigned long)priv;
3452 priv->ucode_trace.function = iwl_bg_ucode_trace;
3454 if (priv->cfg->ops->lib->recover_from_tx_stall) {
3455 init_timer(&priv->monitor_recover);
3456 priv->monitor_recover.data = (unsigned long)priv;
3457 priv->monitor_recover.function =
3458 priv->cfg->ops->lib->recover_from_tx_stall;
3461 if (!priv->cfg->use_isr_legacy)
3462 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3463 iwl_irq_tasklet, (unsigned long)priv);
3465 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3466 iwl_irq_tasklet_legacy, (unsigned long)priv);
3469 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
3471 if (priv->cfg->ops->lib->cancel_deferred_work)
3472 priv->cfg->ops->lib->cancel_deferred_work(priv);
3474 cancel_delayed_work_sync(&priv->init_alive_start);
3475 cancel_delayed_work(&priv->scan_check);
3476 cancel_work_sync(&priv->start_internal_scan);
3477 cancel_delayed_work(&priv->alive_start);
3478 cancel_work_sync(&priv->beacon_update);
3479 del_timer_sync(&priv->statistics_periodic);
3480 del_timer_sync(&priv->ucode_trace);
3481 if (priv->cfg->ops->lib->recover_from_tx_stall)
3482 del_timer_sync(&priv->monitor_recover);
3485 static void iwl_init_hw_rates(struct iwl_priv *priv,
3486 struct ieee80211_rate *rates)
3490 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
3491 rates[i].bitrate = iwl_rates[i].ieee * 5;
3492 rates[i].hw_value = i; /* Rate scaling will work on indexes */
3493 rates[i].hw_value_short = i;
3495 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
3497 * If CCK != 1M then set short preamble rate flag.
3500 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
3501 0 : IEEE80211_RATE_SHORT_PREAMBLE;
3506 static int iwl_init_drv(struct iwl_priv *priv)
3510 priv->ibss_beacon = NULL;
3512 spin_lock_init(&priv->sta_lock);
3513 spin_lock_init(&priv->hcmd_lock);
3515 INIT_LIST_HEAD(&priv->free_frames);
3517 mutex_init(&priv->mutex);
3518 mutex_init(&priv->sync_cmd_mutex);
3520 priv->ieee_channels = NULL;
3521 priv->ieee_rates = NULL;
3522 priv->band = IEEE80211_BAND_2GHZ;
3524 priv->iw_mode = NL80211_IFTYPE_STATION;
3525 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
3526 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
3527 priv->_agn.agg_tids_count = 0;
3529 /* initialize force reset */
3530 priv->force_reset[IWL_RF_RESET].reset_duration =
3531 IWL_DELAY_NEXT_FORCE_RF_RESET;
3532 priv->force_reset[IWL_FW_RESET].reset_duration =
3533 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
3535 /* Choose which receivers/antennas to use */
3536 if (priv->cfg->ops->hcmd->set_rxon_chain)
3537 priv->cfg->ops->hcmd->set_rxon_chain(priv);
3539 iwl_init_scan_params(priv);
3541 /* Set the tx_power_user_lmt to the lowest power level
3542 * this value will get overwritten by channel max power avg
3544 priv->tx_power_user_lmt = IWLAGN_TX_POWER_TARGET_POWER_MIN;
3546 ret = iwl_init_channel_map(priv);
3548 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3552 ret = iwlcore_init_geos(priv);
3554 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3555 goto err_free_channel_map;
3557 iwl_init_hw_rates(priv, priv->ieee_rates);
3561 err_free_channel_map:
3562 iwl_free_channel_map(priv);
3567 static void iwl_uninit_drv(struct iwl_priv *priv)
3569 iwl_calib_free_results(priv);
3570 iwlcore_free_geos(priv);
3571 iwl_free_channel_map(priv);
3572 kfree(priv->scan_cmd);
3575 static struct ieee80211_ops iwl_hw_ops = {
3577 .start = iwl_mac_start,
3578 .stop = iwl_mac_stop,
3579 .add_interface = iwl_mac_add_interface,
3580 .remove_interface = iwl_mac_remove_interface,
3581 .config = iwl_mac_config,
3582 .configure_filter = iwl_configure_filter,
3583 .set_key = iwl_mac_set_key,
3584 .update_tkip_key = iwl_mac_update_tkip_key,
3585 .conf_tx = iwl_mac_conf_tx,
3586 .reset_tsf = iwl_mac_reset_tsf,
3587 .bss_info_changed = iwl_bss_info_changed,
3588 .ampdu_action = iwl_mac_ampdu_action,
3589 .hw_scan = iwl_mac_hw_scan,
3590 .sta_notify = iwl_mac_sta_notify,
3591 .sta_add = iwlagn_mac_sta_add,
3592 .sta_remove = iwl_mac_sta_remove,
3595 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3598 struct iwl_priv *priv;
3599 struct ieee80211_hw *hw;
3600 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
3601 unsigned long flags;
3604 /************************
3605 * 1. Allocating HW data
3606 ************************/
3608 /* Disabling hardware scan means that mac80211 will perform scans
3609 * "the hard way", rather than using device's scan. */
3610 if (cfg->mod_params->disable_hw_scan) {
3611 if (iwl_debug_level & IWL_DL_INFO)
3612 dev_printk(KERN_DEBUG, &(pdev->dev),
3613 "Disabling hw_scan\n");
3614 iwl_hw_ops.hw_scan = NULL;
3617 hw = iwl_alloc_all(cfg, &iwl_hw_ops);
3623 /* At this point both hw and priv are allocated. */
3625 SET_IEEE80211_DEV(hw, &pdev->dev);
3627 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3629 priv->pci_dev = pdev;
3630 priv->inta_mask = CSR_INI_SET_MASK;
3632 #ifdef CONFIG_IWLWIFI_DEBUG
3633 atomic_set(&priv->restrict_refcnt, 0);
3635 if (iwl_alloc_traffic_mem(priv))
3636 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
3638 /**************************
3639 * 2. Initializing PCI bus
3640 **************************/
3641 if (pci_enable_device(pdev)) {
3643 goto out_ieee80211_free_hw;
3646 pci_set_master(pdev);
3648 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
3650 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
3652 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3654 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3655 /* both attempts failed: */
3657 IWL_WARN(priv, "No suitable DMA available.\n");
3658 goto out_pci_disable_device;
3662 err = pci_request_regions(pdev, DRV_NAME);
3664 goto out_pci_disable_device;
3666 pci_set_drvdata(pdev, priv);
3669 /***********************
3670 * 3. Read REV register
3671 ***********************/
3672 priv->hw_base = pci_iomap(pdev, 0, 0);
3673 if (!priv->hw_base) {
3675 goto out_pci_release_regions;
3678 IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
3679 (unsigned long long) pci_resource_len(pdev, 0));
3680 IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
3682 /* these spin locks will be used in apm_ops.init and EEPROM access
3683 * we should init now
3685 spin_lock_init(&priv->reg_lock);
3686 spin_lock_init(&priv->lock);
3689 * stop and reset the on-board processor just in case it is in a
3690 * strange state ... like being left stranded by a primary kernel
3691 * and this is now the kdump kernel trying to start up
3693 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
3695 iwl_hw_detect(priv);
3696 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
3697 priv->cfg->name, priv->hw_rev);
3699 /* We disable the RETRY_TIMEOUT register (0x41) to keep
3700 * PCI Tx retries from interfering with C3 CPU state */
3701 pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
3703 iwl_prepare_card_hw(priv);
3704 if (!priv->hw_ready) {
3705 IWL_WARN(priv, "Failed, HW not ready\n");
3712 /* Read the EEPROM */
3713 err = iwl_eeprom_init(priv);
3715 IWL_ERR(priv, "Unable to init EEPROM\n");
3718 err = iwl_eeprom_check_version(priv);
3720 goto out_free_eeprom;
3722 /* extract MAC Address */
3723 iwl_eeprom_get_mac(priv, priv->mac_addr);
3724 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr);
3725 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
3727 /************************
3728 * 5. Setup HW constants
3729 ************************/
3730 if (iwl_set_hw_params(priv)) {
3731 IWL_ERR(priv, "failed to set hw parameters\n");
3732 goto out_free_eeprom;
3735 /*******************
3737 *******************/
3739 err = iwl_init_drv(priv);
3741 goto out_free_eeprom;
3742 /* At this point both hw and priv are initialized. */
3744 /********************
3746 ********************/
3747 spin_lock_irqsave(&priv->lock, flags);
3748 iwl_disable_interrupts(priv);
3749 spin_unlock_irqrestore(&priv->lock, flags);
3751 pci_enable_msi(priv->pci_dev);
3753 iwl_alloc_isr_ict(priv);
3754 err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr,
3755 IRQF_SHARED, DRV_NAME, priv);
3757 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
3758 goto out_disable_msi;
3761 iwl_setup_deferred_work(priv);
3762 iwl_setup_rx_handlers(priv);
3764 /*********************************************
3765 * 8. Enable interrupts and read RFKILL state
3766 *********************************************/
3768 /* enable interrupts if needed: hw bug w/a */
3769 pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd);
3770 if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
3771 pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
3772 pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd);
3775 iwl_enable_interrupts(priv);
3777 /* If platform's RF_KILL switch is NOT set to KILL */
3778 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
3779 clear_bit(STATUS_RF_KILL_HW, &priv->status);
3781 set_bit(STATUS_RF_KILL_HW, &priv->status);
3783 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
3784 test_bit(STATUS_RF_KILL_HW, &priv->status));
3786 iwl_power_initialize(priv);
3787 iwl_tt_initialize(priv);
3789 init_completion(&priv->_agn.firmware_loading_complete);
3791 err = iwl_request_firmware(priv, true);
3793 goto out_destroy_workqueue;
3797 out_destroy_workqueue:
3798 destroy_workqueue(priv->workqueue);
3799 priv->workqueue = NULL;
3800 free_irq(priv->pci_dev->irq, priv);
3801 iwl_free_isr_ict(priv);
3803 pci_disable_msi(priv->pci_dev);
3804 iwl_uninit_drv(priv);
3806 iwl_eeprom_free(priv);
3808 pci_iounmap(pdev, priv->hw_base);
3809 out_pci_release_regions:
3810 pci_set_drvdata(pdev, NULL);
3811 pci_release_regions(pdev);
3812 out_pci_disable_device:
3813 pci_disable_device(pdev);
3814 out_ieee80211_free_hw:
3815 iwl_free_traffic_mem(priv);
3816 ieee80211_free_hw(priv->hw);
3821 static void __devexit iwl_pci_remove(struct pci_dev *pdev)
3823 struct iwl_priv *priv = pci_get_drvdata(pdev);
3824 unsigned long flags;
3829 wait_for_completion(&priv->_agn.firmware_loading_complete);
3831 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
3833 iwl_dbgfs_unregister(priv);
3834 sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
3836 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3837 * to be called and iwl_down since we are removing the device
3838 * we need to set STATUS_EXIT_PENDING bit.
3840 set_bit(STATUS_EXIT_PENDING, &priv->status);
3841 if (priv->mac80211_registered) {
3842 ieee80211_unregister_hw(priv->hw);
3843 priv->mac80211_registered = 0;
3849 * Make sure device is reset to low power before unloading driver.
3850 * This may be redundant with iwl_down(), but there are paths to
3851 * run iwl_down() without calling apm_ops.stop(), and there are
3852 * paths to avoid running iwl_down() at all before leaving driver.
3853 * This (inexpensive) call *makes sure* device is reset.
3855 priv->cfg->ops->lib->apm_ops.stop(priv);
3859 /* make sure we flush any pending irq or
3860 * tasklet for the driver
3862 spin_lock_irqsave(&priv->lock, flags);
3863 iwl_disable_interrupts(priv);
3864 spin_unlock_irqrestore(&priv->lock, flags);
3866 iwl_synchronize_irq(priv);
3868 iwl_dealloc_ucode_pci(priv);
3871 iwlagn_rx_queue_free(priv, &priv->rxq);
3872 iwlagn_hw_txq_ctx_free(priv);
3874 iwl_eeprom_free(priv);
3877 /*netif_stop_queue(dev); */
3878 flush_workqueue(priv->workqueue);
3880 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3881 * priv->workqueue... so we can't take down the workqueue
3883 destroy_workqueue(priv->workqueue);
3884 priv->workqueue = NULL;
3885 iwl_free_traffic_mem(priv);
3887 free_irq(priv->pci_dev->irq, priv);
3888 pci_disable_msi(priv->pci_dev);
3889 pci_iounmap(pdev, priv->hw_base);
3890 pci_release_regions(pdev);
3891 pci_disable_device(pdev);
3892 pci_set_drvdata(pdev, NULL);
3894 iwl_uninit_drv(priv);
3896 iwl_free_isr_ict(priv);
3898 if (priv->ibss_beacon)
3899 dev_kfree_skb(priv->ibss_beacon);
3901 ieee80211_free_hw(priv->hw);
3905 /*****************************************************************************
3907 * driver and module entry point
3909 *****************************************************************************/
3911 /* Hardware specific file defines the PCI IDs table for that hardware module */
3912 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
3913 #ifdef CONFIG_IWL4965
3914 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
3915 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
3916 #endif /* CONFIG_IWL4965 */
3917 #ifdef CONFIG_IWL5000
3918 /* 5100 Series WiFi */
3919 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
3920 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
3921 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
3922 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
3923 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
3924 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
3925 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
3926 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
3927 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
3928 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
3929 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
3930 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
3931 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
3932 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
3933 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
3934 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
3935 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
3936 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
3937 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
3938 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
3939 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
3940 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
3941 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
3942 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */
3944 /* 5300 Series WiFi */
3945 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
3946 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
3947 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
3948 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
3949 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
3950 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
3951 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
3952 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
3953 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
3954 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
3955 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
3956 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */
3958 /* 5350 Series WiFi/WiMax */
3959 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
3960 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
3961 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */
3963 /* 5150 Series Wifi/WiMax */
3964 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
3965 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
3966 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
3967 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
3968 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
3969 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */
3971 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
3972 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
3973 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
3974 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */
3977 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
3978 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
3979 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
3980 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
3981 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
3982 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
3983 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
3984 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
3985 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
3986 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
3988 /* 6x00 Series Gen2a */
3989 {IWL_PCI_DEVICE(0x0082, 0x1201, iwl6000g2a_2agn_cfg)},
3990 {IWL_PCI_DEVICE(0x0085, 0x1211, iwl6000g2a_2agn_cfg)},
3991 {IWL_PCI_DEVICE(0x0082, 0x1221, iwl6000g2a_2agn_cfg)},
3993 /* 6x50 WiFi/WiMax Series */
3994 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
3995 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
3996 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
3997 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
3998 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
3999 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},
4001 /* 1000 Series WiFi */
4002 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
4003 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
4004 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
4005 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
4006 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
4007 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
4008 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
4009 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
4010 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
4011 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
4012 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
4013 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},
4014 #endif /* CONFIG_IWL5000 */
4018 MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
4020 static struct pci_driver iwl_driver = {
4022 .id_table = iwl_hw_card_ids,
4023 .probe = iwl_pci_probe,
4024 .remove = __devexit_p(iwl_pci_remove),
4026 .suspend = iwl_pci_suspend,
4027 .resume = iwl_pci_resume,
4031 static int __init iwl_init(void)
4035 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
4036 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
4038 ret = iwlagn_rate_control_register();
4040 printk(KERN_ERR DRV_NAME
4041 "Unable to register rate control algorithm: %d\n", ret);
4045 ret = pci_register_driver(&iwl_driver);
4047 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
4048 goto error_register;
4054 iwlagn_rate_control_unregister();
4058 static void __exit iwl_exit(void)
4060 pci_unregister_driver(&iwl_driver);
4061 iwlagn_rate_control_unregister();
4064 module_exit(iwl_exit);
4065 module_init(iwl_init);
4067 #ifdef CONFIG_IWLWIFI_DEBUG
4068 module_param_named(debug50, iwl_debug_level, uint, S_IRUGO);
4069 MODULE_PARM_DESC(debug50, "50XX debug output mask (deprecated)");
4070 module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR);
4071 MODULE_PARM_DESC(debug, "debug output mask");
4074 module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO);
4075 MODULE_PARM_DESC(swcrypto50,
4076 "using crypto in software (default 0 [hardware]) (deprecated)");
4077 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
4078 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
4079 module_param_named(queues_num50,
4080 iwlagn_mod_params.num_of_queues, int, S_IRUGO);
4081 MODULE_PARM_DESC(queues_num50,
4082 "number of hw queues in 50xx series (deprecated)");
4083 module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
4084 MODULE_PARM_DESC(queues_num, "number of hw queues.");
4085 module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO);
4086 MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality (deprecated)");
4087 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
4088 MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
4089 module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K,
4091 MODULE_PARM_DESC(amsdu_size_8K50,
4092 "enable 8K amsdu size in 50XX series (deprecated)");
4093 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
4095 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
4096 module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO);
4097 MODULE_PARM_DESC(fw_restart50,
4098 "restart firmware in case of error (deprecated)");
4099 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
4100 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
4102 disable_hw_scan, iwlagn_mod_params.disable_hw_scan, int, S_IRUGO);
4103 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
4105 module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int,
4107 MODULE_PARM_DESC(ucode_alternative,
4108 "specify ucode alternative to use from ucode file");