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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/init.h>
35 #include <linux/pci.h>
36 #include <linux/pci-aspm.h>
37 #include <linux/slab.h>
38 #include <linux/dma-mapping.h>
39 #include <linux/delay.h>
40 #include <linux/sched.h>
41 #include <linux/skbuff.h>
42 #include <linux/netdevice.h>
43 #include <linux/wireless.h>
44 #include <linux/firmware.h>
45 #include <linux/etherdevice.h>
46 #include <linux/if_arp.h>
48 #include <net/mac80211.h>
50 #include <asm/div64.h>
52 #define DRV_NAME "iwlagn"
54 #include "iwl-eeprom.h"
58 #include "iwl-helpers.h"
60 #include "iwl-calib.h"
64 /******************************************************************************
68 ******************************************************************************/
71 * module name, copyright, version, etc.
73 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
75 #ifdef CONFIG_IWLWIFI_DEBUG
81 #define DRV_VERSION IWLWIFI_VERSION VD
84 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
85 MODULE_VERSION(DRV_VERSION
);
86 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
87 MODULE_LICENSE("GPL");
88 MODULE_ALIAS("iwl4965");
90 static int iwlagn_ant_coupling
;
91 static bool iwlagn_bt_ch_announce
= 1;
94 * iwl_commit_rxon - commit staging_rxon to hardware
96 * The RXON command in staging_rxon is committed to the hardware and
97 * the active_rxon structure is updated with the new data. This
98 * function correctly transitions out of the RXON_ASSOC_MSK state if
99 * a HW tune is required based on the RXON structure changes.
101 int iwl_commit_rxon(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
103 /* cast away the const for active_rxon in this function */
104 struct iwl_rxon_cmd
*active_rxon
= (void *)&ctx
->active
;
107 !!(ctx
->staging
.filter_flags
& RXON_FILTER_ASSOC_MSK
);
108 bool old_assoc
= !!(ctx
->active
.filter_flags
& RXON_FILTER_ASSOC_MSK
);
110 if (!iwl_is_alive(priv
))
116 /* always get timestamp with Rx frame */
117 ctx
->staging
.flags
|= RXON_FLG_TSF2HOST_MSK
;
119 ret
= iwl_check_rxon_cmd(priv
, ctx
);
121 IWL_ERR(priv
, "Invalid RXON configuration. Not committing.\n");
126 * receive commit_rxon request
127 * abort any previous channel switch if still in process
129 if (priv
->switch_rxon
.switch_in_progress
&&
130 (priv
->switch_rxon
.channel
!= ctx
->staging
.channel
)) {
131 IWL_DEBUG_11H(priv
, "abort channel switch on %d\n",
132 le16_to_cpu(priv
->switch_rxon
.channel
));
133 iwl_chswitch_done(priv
, false);
136 /* If we don't need to send a full RXON, we can use
137 * iwl_rxon_assoc_cmd which is used to reconfigure filter
138 * and other flags for the current radio configuration. */
139 if (!iwl_full_rxon_required(priv
, ctx
)) {
140 ret
= iwl_send_rxon_assoc(priv
, ctx
);
142 IWL_ERR(priv
, "Error setting RXON_ASSOC (%d)\n", ret
);
146 memcpy(active_rxon
, &ctx
->staging
, sizeof(*active_rxon
));
147 iwl_print_rx_config_cmd(priv
, ctx
);
151 /* If we are currently associated and the new config requires
152 * an RXON_ASSOC and the new config wants the associated mask enabled,
153 * we must clear the associated from the active configuration
154 * before we apply the new config */
155 if (iwl_is_associated_ctx(ctx
) && new_assoc
) {
156 IWL_DEBUG_INFO(priv
, "Toggling associated bit on current RXON\n");
157 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
159 ret
= iwl_send_cmd_pdu(priv
, ctx
->rxon_cmd
,
160 sizeof(struct iwl_rxon_cmd
),
163 /* If the mask clearing failed then we set
164 * active_rxon back to what it was previously */
166 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
167 IWL_ERR(priv
, "Error clearing ASSOC_MSK (%d)\n", ret
);
170 iwl_clear_ucode_stations(priv
, ctx
);
171 iwl_restore_stations(priv
, ctx
);
172 ret
= iwl_restore_default_wep_keys(priv
, ctx
);
174 IWL_ERR(priv
, "Failed to restore WEP keys (%d)\n", ret
);
179 IWL_DEBUG_INFO(priv
, "Sending RXON\n"
180 "* with%s RXON_FILTER_ASSOC_MSK\n"
183 (new_assoc
? "" : "out"),
184 le16_to_cpu(ctx
->staging
.channel
),
185 ctx
->staging
.bssid_addr
);
187 iwl_set_rxon_hwcrypto(priv
, ctx
, !priv
->cfg
->mod_params
->sw_crypto
);
191 * First of all, before setting associated, we need to
192 * send RXON timing so the device knows about the DTIM
193 * period and other timing values
195 ret
= iwl_send_rxon_timing(priv
, ctx
);
197 IWL_ERR(priv
, "Error setting RXON timing!\n");
202 if (priv
->cfg
->ops
->hcmd
->set_pan_params
) {
203 ret
= priv
->cfg
->ops
->hcmd
->set_pan_params(priv
);
208 /* Apply the new configuration
209 * RXON unassoc clears the station table in uCode so restoration of
210 * stations is needed after it (the RXON command) completes
213 ret
= iwl_send_cmd_pdu(priv
, ctx
->rxon_cmd
,
214 sizeof(struct iwl_rxon_cmd
), &ctx
->staging
);
216 IWL_ERR(priv
, "Error setting new RXON (%d)\n", ret
);
219 IWL_DEBUG_INFO(priv
, "Return from !new_assoc RXON.\n");
220 memcpy(active_rxon
, &ctx
->staging
, sizeof(*active_rxon
));
221 iwl_clear_ucode_stations(priv
, ctx
);
222 iwl_restore_stations(priv
, ctx
);
223 ret
= iwl_restore_default_wep_keys(priv
, ctx
);
225 IWL_ERR(priv
, "Failed to restore WEP keys (%d)\n", ret
);
230 priv
->start_calib
= 0;
231 /* Apply the new configuration
232 * RXON assoc doesn't clear the station table in uCode,
234 ret
= iwl_send_cmd_pdu(priv
, ctx
->rxon_cmd
,
235 sizeof(struct iwl_rxon_cmd
), &ctx
->staging
);
237 IWL_ERR(priv
, "Error setting new RXON (%d)\n", ret
);
240 memcpy(active_rxon
, &ctx
->staging
, sizeof(*active_rxon
));
242 iwl_print_rx_config_cmd(priv
, ctx
);
244 iwl_init_sensitivity(priv
);
246 /* If we issue a new RXON command which required a tune then we must
247 * send a new TXPOWER command or we won't be able to Tx any frames */
248 ret
= iwl_set_tx_power(priv
, priv
->tx_power_user_lmt
, true);
250 IWL_ERR(priv
, "Error sending TX power (%d)\n", ret
);
257 void iwl_update_chain_flags(struct iwl_priv
*priv
)
259 struct iwl_rxon_context
*ctx
;
261 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
) {
262 for_each_context(priv
, ctx
) {
263 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
264 iwlcore_commit_rxon(priv
, ctx
);
269 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
271 struct list_head
*element
;
273 IWL_DEBUG_INFO(priv
, "%d frames on pre-allocated heap on clear.\n",
276 while (!list_empty(&priv
->free_frames
)) {
277 element
= priv
->free_frames
.next
;
279 kfree(list_entry(element
, struct iwl_frame
, list
));
280 priv
->frames_count
--;
283 if (priv
->frames_count
) {
284 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
286 priv
->frames_count
= 0;
290 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
292 struct iwl_frame
*frame
;
293 struct list_head
*element
;
294 if (list_empty(&priv
->free_frames
)) {
295 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
297 IWL_ERR(priv
, "Could not allocate frame!\n");
301 priv
->frames_count
++;
305 element
= priv
->free_frames
.next
;
307 return list_entry(element
, struct iwl_frame
, list
);
310 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
312 memset(frame
, 0, sizeof(*frame
));
313 list_add(&frame
->list
, &priv
->free_frames
);
316 static u32
iwl_fill_beacon_frame(struct iwl_priv
*priv
,
317 struct ieee80211_hdr
*hdr
,
320 if (!priv
->ibss_beacon
)
323 if (priv
->ibss_beacon
->len
> left
)
326 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
328 return priv
->ibss_beacon
->len
;
331 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
332 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
333 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
334 u8
*beacon
, u32 frame_size
)
337 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
340 * The index is relative to frame start but we start looking at the
341 * variable-length part of the beacon.
343 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
345 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
346 while ((tim_idx
< (frame_size
- 2)) &&
347 (beacon
[tim_idx
] != WLAN_EID_TIM
))
348 tim_idx
+= beacon
[tim_idx
+1] + 2;
350 /* If TIM field was found, set variables */
351 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
352 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
353 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
355 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
358 static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv
*priv
,
359 struct iwl_frame
*frame
)
361 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
366 * We have to set up the TX command, the TX Beacon command, and the
370 lockdep_assert_held(&priv
->mutex
);
372 if (!priv
->beacon_ctx
) {
373 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
377 /* Initialize memory */
378 tx_beacon_cmd
= &frame
->u
.beacon
;
379 memset(tx_beacon_cmd
, 0, sizeof(*tx_beacon_cmd
));
381 /* Set up TX beacon contents */
382 frame_size
= iwl_fill_beacon_frame(priv
, tx_beacon_cmd
->frame
,
383 sizeof(frame
->u
) - sizeof(*tx_beacon_cmd
));
384 if (WARN_ON_ONCE(frame_size
> MAX_MPDU_SIZE
))
387 /* Set up TX command fields */
388 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
389 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
390 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
391 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
392 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
394 /* Set up TX beacon command fields */
395 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, (u8
*)tx_beacon_cmd
->frame
,
398 /* Set up packet rate and flags */
399 rate
= iwl_rate_get_lowest_plcp(priv
, priv
->beacon_ctx
);
400 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
401 priv
->hw_params
.valid_tx_ant
);
402 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
403 if ((rate
>= IWL_FIRST_CCK_RATE
) && (rate
<= IWL_LAST_CCK_RATE
))
404 rate_flags
|= RATE_MCS_CCK_MSK
;
405 tx_beacon_cmd
->tx
.rate_n_flags
= iwl_hw_set_rate_n_flags(rate
,
408 return sizeof(*tx_beacon_cmd
) + frame_size
;
410 static int iwl_send_beacon_cmd(struct iwl_priv
*priv
)
412 struct iwl_frame
*frame
;
413 unsigned int frame_size
;
416 frame
= iwl_get_free_frame(priv
);
418 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
423 frame_size
= iwl_hw_get_beacon_cmd(priv
, frame
);
425 IWL_ERR(priv
, "Error configuring the beacon command\n");
426 iwl_free_frame(priv
, frame
);
430 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
433 iwl_free_frame(priv
, frame
);
438 static inline dma_addr_t
iwl_tfd_tb_get_addr(struct iwl_tfd
*tfd
, u8 idx
)
440 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
442 dma_addr_t addr
= get_unaligned_le32(&tb
->lo
);
443 if (sizeof(dma_addr_t
) > sizeof(u32
))
445 ((dma_addr_t
)(le16_to_cpu(tb
->hi_n_len
) & 0xF) << 16) << 16;
450 static inline u16
iwl_tfd_tb_get_len(struct iwl_tfd
*tfd
, u8 idx
)
452 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
454 return le16_to_cpu(tb
->hi_n_len
) >> 4;
457 static inline void iwl_tfd_set_tb(struct iwl_tfd
*tfd
, u8 idx
,
458 dma_addr_t addr
, u16 len
)
460 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
461 u16 hi_n_len
= len
<< 4;
463 put_unaligned_le32(addr
, &tb
->lo
);
464 if (sizeof(dma_addr_t
) > sizeof(u32
))
465 hi_n_len
|= ((addr
>> 16) >> 16) & 0xF;
467 tb
->hi_n_len
= cpu_to_le16(hi_n_len
);
469 tfd
->num_tbs
= idx
+ 1;
472 static inline u8
iwl_tfd_get_num_tbs(struct iwl_tfd
*tfd
)
474 return tfd
->num_tbs
& 0x1f;
478 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
479 * @priv - driver private data
482 * Does NOT advance any TFD circular buffer read/write indexes
483 * Does NOT free the TFD itself (which is within circular buffer)
485 void iwl_hw_txq_free_tfd(struct iwl_priv
*priv
, struct iwl_tx_queue
*txq
)
487 struct iwl_tfd
*tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
489 struct pci_dev
*dev
= priv
->pci_dev
;
490 int index
= txq
->q
.read_ptr
;
494 tfd
= &tfd_tmp
[index
];
496 /* Sanity check on number of chunks */
497 num_tbs
= iwl_tfd_get_num_tbs(tfd
);
499 if (num_tbs
>= IWL_NUM_OF_TBS
) {
500 IWL_ERR(priv
, "Too many chunks: %i\n", num_tbs
);
501 /* @todo issue fatal error, it is quite serious situation */
507 pci_unmap_single(dev
,
508 dma_unmap_addr(&txq
->meta
[index
], mapping
),
509 dma_unmap_len(&txq
->meta
[index
], len
),
510 PCI_DMA_BIDIRECTIONAL
);
512 /* Unmap chunks, if any. */
513 for (i
= 1; i
< num_tbs
; i
++)
514 pci_unmap_single(dev
, iwl_tfd_tb_get_addr(tfd
, i
),
515 iwl_tfd_tb_get_len(tfd
, i
), PCI_DMA_TODEVICE
);
521 skb
= txq
->txb
[txq
->q
.read_ptr
].skb
;
523 /* can be called from irqs-disabled context */
525 dev_kfree_skb_any(skb
);
526 txq
->txb
[txq
->q
.read_ptr
].skb
= NULL
;
531 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv
*priv
,
532 struct iwl_tx_queue
*txq
,
533 dma_addr_t addr
, u16 len
,
537 struct iwl_tfd
*tfd
, *tfd_tmp
;
541 tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
542 tfd
= &tfd_tmp
[q
->write_ptr
];
545 memset(tfd
, 0, sizeof(*tfd
));
547 num_tbs
= iwl_tfd_get_num_tbs(tfd
);
549 /* Each TFD can point to a maximum 20 Tx buffers */
550 if (num_tbs
>= IWL_NUM_OF_TBS
) {
551 IWL_ERR(priv
, "Error can not send more than %d chunks\n",
556 BUG_ON(addr
& ~DMA_BIT_MASK(36));
557 if (unlikely(addr
& ~IWL_TX_DMA_MASK
))
558 IWL_ERR(priv
, "Unaligned address = %llx\n",
559 (unsigned long long)addr
);
561 iwl_tfd_set_tb(tfd
, num_tbs
, addr
, len
);
567 * Tell nic where to find circular buffer of Tx Frame Descriptors for
568 * given Tx queue, and enable the DMA channel used for that queue.
570 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
571 * channels supported in hardware.
573 int iwl_hw_tx_queue_init(struct iwl_priv
*priv
,
574 struct iwl_tx_queue
*txq
)
576 int txq_id
= txq
->q
.id
;
578 /* Circular buffer (TFD queue in DRAM) physical base address */
579 iwl_write_direct32(priv
, FH_MEM_CBBC_QUEUE(txq_id
),
580 txq
->q
.dma_addr
>> 8);
585 /******************************************************************************
587 * Generic RX handler implementations
589 ******************************************************************************/
590 static void iwl_rx_reply_alive(struct iwl_priv
*priv
,
591 struct iwl_rx_mem_buffer
*rxb
)
593 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
594 struct iwl_alive_resp
*palive
;
595 struct delayed_work
*pwork
;
597 palive
= &pkt
->u
.alive_frame
;
599 IWL_DEBUG_INFO(priv
, "Alive ucode status 0x%08X revision "
601 palive
->is_valid
, palive
->ver_type
,
602 palive
->ver_subtype
);
604 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
605 IWL_DEBUG_INFO(priv
, "Initialization Alive received.\n");
606 memcpy(&priv
->card_alive_init
,
608 sizeof(struct iwl_init_alive_resp
));
609 pwork
= &priv
->init_alive_start
;
611 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
612 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
613 sizeof(struct iwl_alive_resp
));
614 pwork
= &priv
->alive_start
;
617 /* We delay the ALIVE response by 5ms to
618 * give the HW RF Kill time to activate... */
619 if (palive
->is_valid
== UCODE_VALID_OK
)
620 queue_delayed_work(priv
->workqueue
, pwork
,
621 msecs_to_jiffies(5));
623 IWL_WARN(priv
, "uCode did not respond OK.\n");
626 static void iwl_bg_beacon_update(struct work_struct
*work
)
628 struct iwl_priv
*priv
=
629 container_of(work
, struct iwl_priv
, beacon_update
);
630 struct sk_buff
*beacon
;
632 mutex_lock(&priv
->mutex
);
633 if (!priv
->beacon_ctx
) {
634 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
638 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
640 * The ucode will send beacon notifications even in
641 * IBSS mode, but we don't want to process them. But
642 * we need to defer the type check to here due to
643 * requiring locking around the beacon_ctx access.
648 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
649 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
651 IWL_ERR(priv
, "update beacon failed\n");
655 /* new beacon skb is allocated every time; dispose previous.*/
656 if (priv
->ibss_beacon
)
657 dev_kfree_skb(priv
->ibss_beacon
);
659 priv
->ibss_beacon
= beacon
;
661 iwl_send_beacon_cmd(priv
);
663 mutex_unlock(&priv
->mutex
);
666 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
668 struct iwl_priv
*priv
=
669 container_of(work
, struct iwl_priv
, bt_runtime_config
);
671 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
674 /* dont send host command if rf-kill is on */
675 if (!iwl_is_ready_rf(priv
))
677 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
680 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
682 struct iwl_priv
*priv
=
683 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
684 struct iwl_rxon_context
*ctx
;
686 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
689 /* dont send host command if rf-kill is on */
690 if (!iwl_is_ready_rf(priv
))
693 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
694 priv
->bt_full_concurrent
?
695 "full concurrency" : "3-wire");
698 * LQ & RXON updated cmds must be sent before BT Config cmd
699 * to avoid 3-wire collisions
701 mutex_lock(&priv
->mutex
);
702 for_each_context(priv
, ctx
) {
703 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
704 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
705 iwlcore_commit_rxon(priv
, ctx
);
707 mutex_unlock(&priv
->mutex
);
709 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
713 * iwl_bg_statistics_periodic - Timer callback to queue statistics
715 * This callback is provided in order to send a statistics request.
717 * This timer function is continually reset to execute within
718 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
719 * was received. We need to ensure we receive the statistics in order
720 * to update the temperature used for calibrating the TXPOWER.
722 static void iwl_bg_statistics_periodic(unsigned long data
)
724 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
726 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
729 /* dont send host command if rf-kill is on */
730 if (!iwl_is_ready_rf(priv
))
733 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
737 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
738 u32 start_idx
, u32 num_events
,
742 u32 ptr
; /* SRAM byte address of log data */
743 u32 ev
, time
, data
; /* event log data */
744 unsigned long reg_flags
;
747 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
749 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
751 /* Make sure device is powered up for SRAM reads */
752 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
753 if (iwl_grab_nic_access(priv
)) {
754 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
758 /* Set starting address; reads will auto-increment */
759 _iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
763 * "time" is actually "data" for mode 0 (no timestamp).
764 * place event id # at far right for easier visual parsing.
766 for (i
= 0; i
< num_events
; i
++) {
767 ev
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
768 time
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
770 trace_iwlwifi_dev_ucode_cont_event(priv
,
773 data
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
774 trace_iwlwifi_dev_ucode_cont_event(priv
,
778 /* Allow device to power down */
779 iwl_release_nic_access(priv
);
780 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
783 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
785 u32 capacity
; /* event log capacity in # entries */
786 u32 base
; /* SRAM byte address of event log header */
787 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
788 u32 num_wraps
; /* # times uCode wrapped to top of log */
789 u32 next_entry
; /* index of next entry to be written by uCode */
791 if (priv
->ucode_type
== UCODE_INIT
)
792 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
794 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
795 if (priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
796 capacity
= iwl_read_targ_mem(priv
, base
);
797 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
798 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
799 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
803 if (num_wraps
== priv
->event_log
.num_wraps
) {
804 iwl_print_cont_event_trace(priv
,
805 base
, priv
->event_log
.next_entry
,
806 next_entry
- priv
->event_log
.next_entry
,
808 priv
->event_log
.non_wraps_count
++;
810 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
811 priv
->event_log
.wraps_more_count
++;
813 priv
->event_log
.wraps_once_count
++;
814 trace_iwlwifi_dev_ucode_wrap_event(priv
,
815 num_wraps
- priv
->event_log
.num_wraps
,
816 next_entry
, priv
->event_log
.next_entry
);
817 if (next_entry
< priv
->event_log
.next_entry
) {
818 iwl_print_cont_event_trace(priv
, base
,
819 priv
->event_log
.next_entry
,
820 capacity
- priv
->event_log
.next_entry
,
823 iwl_print_cont_event_trace(priv
, base
, 0,
826 iwl_print_cont_event_trace(priv
, base
,
827 next_entry
, capacity
- next_entry
,
830 iwl_print_cont_event_trace(priv
, base
, 0,
834 priv
->event_log
.num_wraps
= num_wraps
;
835 priv
->event_log
.next_entry
= next_entry
;
839 * iwl_bg_ucode_trace - Timer callback to log ucode event
841 * The timer is continually set to execute every
842 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
843 * this function is to perform continuous uCode event logging operation
846 static void iwl_bg_ucode_trace(unsigned long data
)
848 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
850 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
853 if (priv
->event_log
.ucode_trace
) {
854 iwl_continuous_event_trace(priv
);
855 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
856 mod_timer(&priv
->ucode_trace
,
857 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
861 static void iwl_rx_beacon_notif(struct iwl_priv
*priv
,
862 struct iwl_rx_mem_buffer
*rxb
)
864 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
865 struct iwl4965_beacon_notif
*beacon
=
866 (struct iwl4965_beacon_notif
*)pkt
->u
.raw
;
867 #ifdef CONFIG_IWLWIFI_DEBUG
868 u8 rate
= iwl_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
870 IWL_DEBUG_RX(priv
, "beacon status %x retries %d iss %d "
871 "tsf %d %d rate %d\n",
872 le32_to_cpu(beacon
->beacon_notify_hdr
.u
.status
) & TX_STATUS_MSK
,
873 beacon
->beacon_notify_hdr
.failure_frame
,
874 le32_to_cpu(beacon
->ibss_mgr_status
),
875 le32_to_cpu(beacon
->high_tsf
),
876 le32_to_cpu(beacon
->low_tsf
), rate
);
879 priv
->ibss_manager
= le32_to_cpu(beacon
->ibss_mgr_status
);
881 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
882 queue_work(priv
->workqueue
, &priv
->beacon_update
);
885 /* Handle notification from uCode that card's power state is changing
886 * due to software, hardware, or critical temperature RFKILL */
887 static void iwl_rx_card_state_notif(struct iwl_priv
*priv
,
888 struct iwl_rx_mem_buffer
*rxb
)
890 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
891 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
892 unsigned long status
= priv
->status
;
894 IWL_DEBUG_RF_KILL(priv
, "Card state received: HW:%s SW:%s CT:%s\n",
895 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
896 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
897 (flags
& CT_CARD_DISABLED
) ?
898 "Reached" : "Not reached");
900 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
903 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
904 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
906 iwl_write_direct32(priv
, HBUS_TARG_MBX_C
,
907 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
909 if (!(flags
& RXON_CARD_DISABLED
)) {
910 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
911 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
912 iwl_write_direct32(priv
, HBUS_TARG_MBX_C
,
913 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
915 if (flags
& CT_CARD_DISABLED
)
916 iwl_tt_enter_ct_kill(priv
);
918 if (!(flags
& CT_CARD_DISABLED
))
919 iwl_tt_exit_ct_kill(priv
);
921 if (flags
& HW_CARD_DISABLED
)
922 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
924 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
927 if (!(flags
& RXON_CARD_DISABLED
))
928 iwl_scan_cancel(priv
);
930 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
931 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)))
932 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
933 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
935 wake_up_interruptible(&priv
->wait_command_queue
);
938 int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
)
940 if (src
== IWL_PWR_SRC_VAUX
) {
941 if (pci_pme_capable(priv
->pci_dev
, PCI_D3cold
))
942 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
943 APMG_PS_CTRL_VAL_PWR_SRC_VAUX
,
944 ~APMG_PS_CTRL_MSK_PWR_SRC
);
946 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
947 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN
,
948 ~APMG_PS_CTRL_MSK_PWR_SRC
);
954 static void iwl_bg_tx_flush(struct work_struct
*work
)
956 struct iwl_priv
*priv
=
957 container_of(work
, struct iwl_priv
, tx_flush
);
959 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
962 /* do nothing if rf-kill is on */
963 if (!iwl_is_ready_rf(priv
))
966 if (priv
->cfg
->ops
->lib
->txfifo_flush
) {
967 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
968 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
973 * iwl_setup_rx_handlers - Initialize Rx handler callbacks
975 * Setup the RX handlers for each of the reply types sent from the uCode
978 * This function chains into the hardware specific files for them to setup
979 * any hardware specific handlers as well.
981 static void iwl_setup_rx_handlers(struct iwl_priv
*priv
)
983 priv
->rx_handlers
[REPLY_ALIVE
] = iwl_rx_reply_alive
;
984 priv
->rx_handlers
[REPLY_ERROR
] = iwl_rx_reply_error
;
985 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl_rx_csa
;
986 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
987 iwl_rx_spectrum_measure_notif
;
988 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl_rx_pm_sleep_notif
;
989 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
990 iwl_rx_pm_debug_statistics_notif
;
991 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl_rx_beacon_notif
;
994 * The same handler is used for both the REPLY to a discrete
995 * statistics request from the host as well as for the periodic
996 * statistics notifications (after received beacons) from the uCode.
998 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl_reply_statistics
;
999 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl_rx_statistics
;
1001 iwl_setup_rx_scan_handlers(priv
);
1003 /* status change handler */
1004 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl_rx_card_state_notif
;
1006 priv
->rx_handlers
[MISSED_BEACONS_NOTIFICATION
] =
1007 iwl_rx_missed_beacon_notif
;
1009 priv
->rx_handlers
[REPLY_RX_PHY_CMD
] = iwlagn_rx_reply_rx_phy
;
1010 priv
->rx_handlers
[REPLY_RX_MPDU_CMD
] = iwlagn_rx_reply_rx
;
1012 priv
->rx_handlers
[REPLY_COMPRESSED_BA
] = iwlagn_rx_reply_compressed_ba
;
1013 /* Set up hardware specific Rx handlers */
1014 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
1018 * iwl_rx_handle - Main entry function for receiving responses from uCode
1020 * Uses the priv->rx_handlers callback function array to invoke
1021 * the appropriate handlers, including command responses,
1022 * frame-received notifications, and other notifications.
1024 void iwl_rx_handle(struct iwl_priv
*priv
)
1026 struct iwl_rx_mem_buffer
*rxb
;
1027 struct iwl_rx_packet
*pkt
;
1028 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
1031 unsigned long flags
;
1036 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1037 * buffer that the driver may process (last buffer filled by ucode). */
1038 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
1041 /* Rx interrupt, but nothing sent from uCode */
1043 IWL_DEBUG_RX(priv
, "r = %d, i = %d\n", r
, i
);
1045 /* calculate total frames need to be restock after handling RX */
1046 total_empty
= r
- rxq
->write_actual
;
1047 if (total_empty
< 0)
1048 total_empty
+= RX_QUEUE_SIZE
;
1050 if (total_empty
> (RX_QUEUE_SIZE
/ 2))
1056 rxb
= rxq
->queue
[i
];
1058 /* If an RXB doesn't have a Rx queue slot associated with it,
1059 * then a bug has been introduced in the queue refilling
1060 * routines -- catch it here */
1061 BUG_ON(rxb
== NULL
);
1063 rxq
->queue
[i
] = NULL
;
1065 pci_unmap_page(priv
->pci_dev
, rxb
->page_dma
,
1066 PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
1067 PCI_DMA_FROMDEVICE
);
1068 pkt
= rxb_addr(rxb
);
1070 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
1071 len
+= sizeof(u32
); /* account for status word */
1072 trace_iwlwifi_dev_rx(priv
, pkt
, len
);
1074 /* Reclaim a command buffer only if this packet is a response
1075 * to a (driver-originated) command.
1076 * If the packet (e.g. Rx frame) originated from uCode,
1077 * there is no command buffer to reclaim.
1078 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1079 * but apparently a few don't get set; catch them here. */
1080 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
1081 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
1082 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
1083 (pkt
->hdr
.cmd
!= REPLY_RX_MPDU_CMD
) &&
1084 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
1085 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
1086 (pkt
->hdr
.cmd
!= REPLY_TX
);
1088 /* Based on type of command response or notification,
1089 * handle those that need handling via function in
1090 * rx_handlers table. See iwl_setup_rx_handlers() */
1091 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
1092 IWL_DEBUG_RX(priv
, "r = %d, i = %d, %s, 0x%02x\n", r
,
1093 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
1094 priv
->isr_stats
.rx_handlers
[pkt
->hdr
.cmd
]++;
1095 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
1097 /* No handling needed */
1099 "r %d i %d No handler needed for %s, 0x%02x\n",
1100 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
1105 * XXX: After here, we should always check rxb->page
1106 * against NULL before touching it or its virtual
1107 * memory (pkt). Because some rx_handler might have
1108 * already taken or freed the pages.
1112 /* Invoke any callbacks, transfer the buffer to caller,
1113 * and fire off the (possibly) blocking iwl_send_cmd()
1114 * as we reclaim the driver command queue */
1116 iwl_tx_cmd_complete(priv
, rxb
);
1118 IWL_WARN(priv
, "Claim null rxb?\n");
1121 /* Reuse the page if possible. For notification packets and
1122 * SKBs that fail to Rx correctly, add them back into the
1123 * rx_free list for reuse later. */
1124 spin_lock_irqsave(&rxq
->lock
, flags
);
1125 if (rxb
->page
!= NULL
) {
1126 rxb
->page_dma
= pci_map_page(priv
->pci_dev
, rxb
->page
,
1127 0, PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
1128 PCI_DMA_FROMDEVICE
);
1129 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
1132 list_add_tail(&rxb
->list
, &rxq
->rx_used
);
1134 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1136 i
= (i
+ 1) & RX_QUEUE_MASK
;
1137 /* If there are a lot of unused frames,
1138 * restock the Rx queue so ucode wont assert. */
1143 iwlagn_rx_replenish_now(priv
);
1149 /* Backtrack one entry */
1152 iwlagn_rx_replenish_now(priv
);
1154 iwlagn_rx_queue_restock(priv
);
1157 /* call this function to flush any scheduled tasklet */
1158 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
1160 /* wait to make sure we flush pending tasklet*/
1161 synchronize_irq(priv
->pci_dev
->irq
);
1162 tasklet_kill(&priv
->irq_tasklet
);
1165 static void iwl_irq_tasklet_legacy(struct iwl_priv
*priv
)
1167 u32 inta
, handled
= 0;
1169 unsigned long flags
;
1171 #ifdef CONFIG_IWLWIFI_DEBUG
1175 spin_lock_irqsave(&priv
->lock
, flags
);
1177 /* Ack/clear/reset pending uCode interrupts.
1178 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1179 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1180 inta
= iwl_read32(priv
, CSR_INT
);
1181 iwl_write32(priv
, CSR_INT
, inta
);
1183 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1184 * Any new interrupts that happen after this, either while we're
1185 * in this tasklet, or later, will show up in next ISR/tasklet. */
1186 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1187 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
1189 #ifdef CONFIG_IWLWIFI_DEBUG
1190 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
1191 /* just for debug */
1192 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1193 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1194 inta
, inta_mask
, inta_fh
);
1198 spin_unlock_irqrestore(&priv
->lock
, flags
);
1200 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1201 * atomic, make sure that inta covers all the interrupts that
1202 * we've discovered, even if FH interrupt came in just after
1203 * reading CSR_INT. */
1204 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
1205 inta
|= CSR_INT_BIT_FH_RX
;
1206 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
1207 inta
|= CSR_INT_BIT_FH_TX
;
1209 /* Now service all interrupt bits discovered above. */
1210 if (inta
& CSR_INT_BIT_HW_ERR
) {
1211 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
1213 /* Tell the device to stop sending interrupts */
1214 iwl_disable_interrupts(priv
);
1216 priv
->isr_stats
.hw
++;
1217 iwl_irq_handle_error(priv
);
1219 handled
|= CSR_INT_BIT_HW_ERR
;
1224 #ifdef CONFIG_IWLWIFI_DEBUG
1225 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1226 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1227 if (inta
& CSR_INT_BIT_SCD
) {
1228 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
1229 "the frame/frames.\n");
1230 priv
->isr_stats
.sch
++;
1233 /* Alive notification via Rx interrupt will do the real work */
1234 if (inta
& CSR_INT_BIT_ALIVE
) {
1235 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
1236 priv
->isr_stats
.alive
++;
1240 /* Safely ignore these bits for debug checks below */
1241 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1243 /* HW RF KILL switch toggled */
1244 if (inta
& CSR_INT_BIT_RF_KILL
) {
1246 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1247 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1250 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
1251 hw_rf_kill
? "disable radio" : "enable radio");
1253 priv
->isr_stats
.rfkill
++;
1255 /* driver only loads ucode once setting the interface up.
1256 * the driver allows loading the ucode even if the radio
1257 * is killed. Hence update the killswitch state here. The
1258 * rfkill handler will care about restarting if needed.
1260 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1262 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1264 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1265 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1268 handled
|= CSR_INT_BIT_RF_KILL
;
1271 /* Chip got too hot and stopped itself */
1272 if (inta
& CSR_INT_BIT_CT_KILL
) {
1273 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1274 priv
->isr_stats
.ctkill
++;
1275 handled
|= CSR_INT_BIT_CT_KILL
;
1278 /* Error detected by uCode */
1279 if (inta
& CSR_INT_BIT_SW_ERR
) {
1280 IWL_ERR(priv
, "Microcode SW error detected. "
1281 " Restarting 0x%X.\n", inta
);
1282 priv
->isr_stats
.sw
++;
1283 iwl_irq_handle_error(priv
);
1284 handled
|= CSR_INT_BIT_SW_ERR
;
1288 * uCode wakes up after power-down sleep.
1289 * Tell device about any new tx or host commands enqueued,
1290 * and about any Rx buffers made available while asleep.
1292 if (inta
& CSR_INT_BIT_WAKEUP
) {
1293 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1294 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1295 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1296 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1297 priv
->isr_stats
.wakeup
++;
1298 handled
|= CSR_INT_BIT_WAKEUP
;
1301 /* All uCode command responses, including Tx command responses,
1302 * Rx "responses" (frame-received notification), and other
1303 * notifications from uCode come through here*/
1304 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1305 iwl_rx_handle(priv
);
1306 priv
->isr_stats
.rx
++;
1307 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1310 /* This "Tx" DMA channel is used only for loading uCode */
1311 if (inta
& CSR_INT_BIT_FH_TX
) {
1312 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1313 priv
->isr_stats
.tx
++;
1314 handled
|= CSR_INT_BIT_FH_TX
;
1315 /* Wake up uCode load routine, now that load is complete */
1316 priv
->ucode_write_complete
= 1;
1317 wake_up_interruptible(&priv
->wait_command_queue
);
1320 if (inta
& ~handled
) {
1321 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1322 priv
->isr_stats
.unhandled
++;
1325 if (inta
& ~(priv
->inta_mask
)) {
1326 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1327 inta
& ~priv
->inta_mask
);
1328 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
1331 /* Re-enable all interrupts */
1332 /* only Re-enable if diabled by irq */
1333 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1334 iwl_enable_interrupts(priv
);
1336 #ifdef CONFIG_IWLWIFI_DEBUG
1337 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1338 inta
= iwl_read32(priv
, CSR_INT
);
1339 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1340 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1341 IWL_DEBUG_ISR(priv
, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1342 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
1347 /* tasklet for iwlagn interrupt */
1348 static void iwl_irq_tasklet(struct iwl_priv
*priv
)
1352 unsigned long flags
;
1354 #ifdef CONFIG_IWLWIFI_DEBUG
1358 spin_lock_irqsave(&priv
->lock
, flags
);
1360 /* Ack/clear/reset pending uCode interrupts.
1361 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1363 /* There is a hardware bug in the interrupt mask function that some
1364 * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
1365 * they are disabled in the CSR_INT_MASK register. Furthermore the
1366 * ICT interrupt handling mechanism has another bug that might cause
1367 * these unmasked interrupts fail to be detected. We workaround the
1368 * hardware bugs here by ACKing all the possible interrupts so that
1369 * interrupt coalescing can still be achieved.
1371 iwl_write32(priv
, CSR_INT
, priv
->_agn
.inta
| ~priv
->inta_mask
);
1373 inta
= priv
->_agn
.inta
;
1375 #ifdef CONFIG_IWLWIFI_DEBUG
1376 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
1377 /* just for debug */
1378 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1379 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x\n ",
1384 spin_unlock_irqrestore(&priv
->lock
, flags
);
1386 /* saved interrupt in inta variable now we can reset priv->_agn.inta */
1387 priv
->_agn
.inta
= 0;
1389 /* Now service all interrupt bits discovered above. */
1390 if (inta
& CSR_INT_BIT_HW_ERR
) {
1391 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
1393 /* Tell the device to stop sending interrupts */
1394 iwl_disable_interrupts(priv
);
1396 priv
->isr_stats
.hw
++;
1397 iwl_irq_handle_error(priv
);
1399 handled
|= CSR_INT_BIT_HW_ERR
;
1404 #ifdef CONFIG_IWLWIFI_DEBUG
1405 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1406 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1407 if (inta
& CSR_INT_BIT_SCD
) {
1408 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
1409 "the frame/frames.\n");
1410 priv
->isr_stats
.sch
++;
1413 /* Alive notification via Rx interrupt will do the real work */
1414 if (inta
& CSR_INT_BIT_ALIVE
) {
1415 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
1416 priv
->isr_stats
.alive
++;
1420 /* Safely ignore these bits for debug checks below */
1421 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1423 /* HW RF KILL switch toggled */
1424 if (inta
& CSR_INT_BIT_RF_KILL
) {
1426 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1427 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1430 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
1431 hw_rf_kill
? "disable radio" : "enable radio");
1433 priv
->isr_stats
.rfkill
++;
1435 /* driver only loads ucode once setting the interface up.
1436 * the driver allows loading the ucode even if the radio
1437 * is killed. Hence update the killswitch state here. The
1438 * rfkill handler will care about restarting if needed.
1440 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1442 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1444 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1445 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1448 handled
|= CSR_INT_BIT_RF_KILL
;
1451 /* Chip got too hot and stopped itself */
1452 if (inta
& CSR_INT_BIT_CT_KILL
) {
1453 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1454 priv
->isr_stats
.ctkill
++;
1455 handled
|= CSR_INT_BIT_CT_KILL
;
1458 /* Error detected by uCode */
1459 if (inta
& CSR_INT_BIT_SW_ERR
) {
1460 IWL_ERR(priv
, "Microcode SW error detected. "
1461 " Restarting 0x%X.\n", inta
);
1462 priv
->isr_stats
.sw
++;
1463 iwl_irq_handle_error(priv
);
1464 handled
|= CSR_INT_BIT_SW_ERR
;
1467 /* uCode wakes up after power-down sleep */
1468 if (inta
& CSR_INT_BIT_WAKEUP
) {
1469 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1470 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1471 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1472 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1474 priv
->isr_stats
.wakeup
++;
1476 handled
|= CSR_INT_BIT_WAKEUP
;
1479 /* All uCode command responses, including Tx command responses,
1480 * Rx "responses" (frame-received notification), and other
1481 * notifications from uCode come through here*/
1482 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
|
1483 CSR_INT_BIT_RX_PERIODIC
)) {
1484 IWL_DEBUG_ISR(priv
, "Rx interrupt\n");
1485 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1486 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1487 iwl_write32(priv
, CSR_FH_INT_STATUS
,
1488 CSR49_FH_INT_RX_MASK
);
1490 if (inta
& CSR_INT_BIT_RX_PERIODIC
) {
1491 handled
|= CSR_INT_BIT_RX_PERIODIC
;
1492 iwl_write32(priv
, CSR_INT
, CSR_INT_BIT_RX_PERIODIC
);
1494 /* Sending RX interrupt require many steps to be done in the
1496 * 1- write interrupt to current index in ICT table.
1498 * 3- update RX shared data to indicate last write index.
1499 * 4- send interrupt.
1500 * This could lead to RX race, driver could receive RX interrupt
1501 * but the shared data changes does not reflect this;
1502 * periodic interrupt will detect any dangling Rx activity.
1505 /* Disable periodic interrupt; we use it as just a one-shot. */
1506 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
1507 CSR_INT_PERIODIC_DIS
);
1508 iwl_rx_handle(priv
);
1511 * Enable periodic interrupt in 8 msec only if we received
1512 * real RX interrupt (instead of just periodic int), to catch
1513 * any dangling Rx interrupt. If it was just the periodic
1514 * interrupt, there was no dangling Rx activity, and no need
1515 * to extend the periodic interrupt; one-shot is enough.
1517 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
))
1518 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
1519 CSR_INT_PERIODIC_ENA
);
1521 priv
->isr_stats
.rx
++;
1524 /* This "Tx" DMA channel is used only for loading uCode */
1525 if (inta
& CSR_INT_BIT_FH_TX
) {
1526 iwl_write32(priv
, CSR_FH_INT_STATUS
, CSR49_FH_INT_TX_MASK
);
1527 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1528 priv
->isr_stats
.tx
++;
1529 handled
|= CSR_INT_BIT_FH_TX
;
1530 /* Wake up uCode load routine, now that load is complete */
1531 priv
->ucode_write_complete
= 1;
1532 wake_up_interruptible(&priv
->wait_command_queue
);
1535 if (inta
& ~handled
) {
1536 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1537 priv
->isr_stats
.unhandled
++;
1540 if (inta
& ~(priv
->inta_mask
)) {
1541 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1542 inta
& ~priv
->inta_mask
);
1545 /* Re-enable all interrupts */
1546 /* only Re-enable if diabled by irq */
1547 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1548 iwl_enable_interrupts(priv
);
1551 /* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */
1552 #define ACK_CNT_RATIO (50)
1553 #define BA_TIMEOUT_CNT (5)
1554 #define BA_TIMEOUT_MAX (16)
1557 * iwl_good_ack_health - checks for ACK count ratios, BA timeout retries.
1559 * When the ACK count ratio is 0 and aggregated BA timeout retries exceeding
1560 * the BA_TIMEOUT_MAX, reload firmware and bring system back to normal
1563 bool iwl_good_ack_health(struct iwl_priv
*priv
,
1564 struct iwl_rx_packet
*pkt
)
1567 int actual_ack_cnt_delta
, expected_ack_cnt_delta
;
1568 int ba_timeout_delta
;
1570 actual_ack_cnt_delta
=
1571 le32_to_cpu(pkt
->u
.stats
.tx
.actual_ack_cnt
) -
1572 le32_to_cpu(priv
->_agn
.statistics
.tx
.actual_ack_cnt
);
1573 expected_ack_cnt_delta
=
1574 le32_to_cpu(pkt
->u
.stats
.tx
.expected_ack_cnt
) -
1575 le32_to_cpu(priv
->_agn
.statistics
.tx
.expected_ack_cnt
);
1577 le32_to_cpu(pkt
->u
.stats
.tx
.agg
.ba_timeout
) -
1578 le32_to_cpu(priv
->_agn
.statistics
.tx
.agg
.ba_timeout
);
1579 if ((priv
->_agn
.agg_tids_count
> 0) &&
1580 (expected_ack_cnt_delta
> 0) &&
1581 (((actual_ack_cnt_delta
* 100) / expected_ack_cnt_delta
)
1583 (ba_timeout_delta
> BA_TIMEOUT_CNT
)) {
1584 IWL_DEBUG_RADIO(priv
, "actual_ack_cnt delta = %d,"
1585 " expected_ack_cnt = %d\n",
1586 actual_ack_cnt_delta
, expected_ack_cnt_delta
);
1588 #ifdef CONFIG_IWLWIFI_DEBUGFS
1590 * This is ifdef'ed on DEBUGFS because otherwise the
1591 * statistics aren't available. If DEBUGFS is set but
1592 * DEBUG is not, these will just compile out.
1594 IWL_DEBUG_RADIO(priv
, "rx_detected_cnt delta = %d\n",
1595 priv
->_agn
.delta_statistics
.tx
.rx_detected_cnt
);
1596 IWL_DEBUG_RADIO(priv
,
1597 "ack_or_ba_timeout_collision delta = %d\n",
1598 priv
->_agn
.delta_statistics
.tx
.
1599 ack_or_ba_timeout_collision
);
1601 IWL_DEBUG_RADIO(priv
, "agg ba_timeout delta = %d\n",
1603 if (!actual_ack_cnt_delta
&&
1604 (ba_timeout_delta
>= BA_TIMEOUT_MAX
))
1611 /*****************************************************************************
1615 *****************************************************************************/
1617 #ifdef CONFIG_IWLWIFI_DEBUG
1620 * The following adds a new attribute to the sysfs representation
1621 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
1622 * used for controlling the debug level.
1624 * See the level definitions in iwl for details.
1626 * The debug_level being managed using sysfs below is a per device debug
1627 * level that is used instead of the global debug level if it (the per
1628 * device debug level) is set.
1630 static ssize_t
show_debug_level(struct device
*d
,
1631 struct device_attribute
*attr
, char *buf
)
1633 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1634 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
1636 static ssize_t
store_debug_level(struct device
*d
,
1637 struct device_attribute
*attr
,
1638 const char *buf
, size_t count
)
1640 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1644 ret
= strict_strtoul(buf
, 0, &val
);
1646 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
1648 priv
->debug_level
= val
;
1649 if (iwl_alloc_traffic_mem(priv
))
1651 "Not enough memory to generate traffic log\n");
1653 return strnlen(buf
, count
);
1656 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
1657 show_debug_level
, store_debug_level
);
1660 #endif /* CONFIG_IWLWIFI_DEBUG */
1663 static ssize_t
show_temperature(struct device
*d
,
1664 struct device_attribute
*attr
, char *buf
)
1666 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1668 if (!iwl_is_alive(priv
))
1671 return sprintf(buf
, "%d\n", priv
->temperature
);
1674 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
1676 static ssize_t
show_tx_power(struct device
*d
,
1677 struct device_attribute
*attr
, char *buf
)
1679 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1681 if (!iwl_is_ready_rf(priv
))
1682 return sprintf(buf
, "off\n");
1684 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
1687 static ssize_t
store_tx_power(struct device
*d
,
1688 struct device_attribute
*attr
,
1689 const char *buf
, size_t count
)
1691 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1695 ret
= strict_strtoul(buf
, 10, &val
);
1697 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
1699 ret
= iwl_set_tx_power(priv
, val
, false);
1701 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
1709 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
1711 static struct attribute
*iwl_sysfs_entries
[] = {
1712 &dev_attr_temperature
.attr
,
1713 &dev_attr_tx_power
.attr
,
1714 #ifdef CONFIG_IWLWIFI_DEBUG
1715 &dev_attr_debug_level
.attr
,
1720 static struct attribute_group iwl_attribute_group
= {
1721 .name
= NULL
, /* put in device directory */
1722 .attrs
= iwl_sysfs_entries
,
1725 /******************************************************************************
1727 * uCode download functions
1729 ******************************************************************************/
1731 static void iwl_dealloc_ucode_pci(struct iwl_priv
*priv
)
1733 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1734 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1735 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1736 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1737 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1738 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1741 static void iwl_nic_start(struct iwl_priv
*priv
)
1743 /* Remove all resets to allow NIC to operate */
1744 iwl_write32(priv
, CSR_RESET
, 0);
1747 struct iwlagn_ucode_capabilities
{
1748 u32 max_probe_length
;
1749 u32 standard_phy_calibration_size
;
1753 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
1754 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
1755 struct iwlagn_ucode_capabilities
*capa
);
1757 #define UCODE_EXPERIMENTAL_INDEX 100
1758 #define UCODE_EXPERIMENTAL_TAG "exp"
1760 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
1762 const char *name_pre
= priv
->cfg
->fw_name_pre
;
1766 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
1767 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
1768 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
1769 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
1771 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
1772 sprintf(tag
, "%d", priv
->fw_index
);
1775 sprintf(tag
, "%d", priv
->fw_index
);
1778 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
1779 IWL_ERR(priv
, "no suitable firmware found!\n");
1783 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
1785 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
1786 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1787 ? "EXPERIMENTAL " : "",
1788 priv
->firmware_name
);
1790 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
1791 &priv
->pci_dev
->dev
, GFP_KERNEL
, priv
,
1792 iwl_ucode_callback
);
1795 struct iwlagn_firmware_pieces
{
1796 const void *inst
, *data
, *init
, *init_data
, *boot
;
1797 size_t inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
1801 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
1802 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
1805 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
1806 const struct firmware
*ucode_raw
,
1807 struct iwlagn_firmware_pieces
*pieces
)
1809 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
1810 u32 api_ver
, hdr_size
;
1813 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1814 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1819 * 4965 doesn't revision the firmware file format
1820 * along with the API version, it always uses v1
1823 if ((priv
->hw_rev
& CSR_HW_REV_TYPE_MSK
) !=
1824 CSR_HW_REV_TYPE_4965
) {
1826 if (ucode_raw
->size
< hdr_size
) {
1827 IWL_ERR(priv
, "File size too small!\n");
1830 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
1831 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
1832 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
1833 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
1834 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
1835 pieces
->boot_size
= le32_to_cpu(ucode
->u
.v2
.boot_size
);
1836 src
= ucode
->u
.v2
.data
;
1839 /* fall through for 4965 */
1844 if (ucode_raw
->size
< hdr_size
) {
1845 IWL_ERR(priv
, "File size too small!\n");
1849 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
1850 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
1851 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
1852 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
1853 pieces
->boot_size
= le32_to_cpu(ucode
->u
.v1
.boot_size
);
1854 src
= ucode
->u
.v1
.data
;
1858 /* Verify size of file vs. image size info in file's header */
1859 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
1860 pieces
->data_size
+ pieces
->init_size
+
1861 pieces
->init_data_size
+ pieces
->boot_size
) {
1864 "uCode file size %d does not match expected size\n",
1865 (int)ucode_raw
->size
);
1870 src
+= pieces
->inst_size
;
1872 src
+= pieces
->data_size
;
1874 src
+= pieces
->init_size
;
1875 pieces
->init_data
= src
;
1876 src
+= pieces
->init_data_size
;
1878 src
+= pieces
->boot_size
;
1883 static int iwlagn_wanted_ucode_alternative
= 1;
1885 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
1886 const struct firmware
*ucode_raw
,
1887 struct iwlagn_firmware_pieces
*pieces
,
1888 struct iwlagn_ucode_capabilities
*capa
)
1890 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
1891 struct iwl_ucode_tlv
*tlv
;
1892 size_t len
= ucode_raw
->size
;
1894 int wanted_alternative
= iwlagn_wanted_ucode_alternative
, tmp
;
1897 enum iwl_ucode_tlv_type tlv_type
;
1900 if (len
< sizeof(*ucode
)) {
1901 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
1905 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
1906 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
1907 le32_to_cpu(ucode
->magic
));
1912 * Check which alternatives are present, and "downgrade"
1913 * when the chosen alternative is not present, warning
1914 * the user when that happens. Some files may not have
1915 * any alternatives, so don't warn in that case.
1917 alternatives
= le64_to_cpu(ucode
->alternatives
);
1918 tmp
= wanted_alternative
;
1919 if (wanted_alternative
> 63)
1920 wanted_alternative
= 63;
1921 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
1922 wanted_alternative
--;
1923 if (wanted_alternative
&& wanted_alternative
!= tmp
)
1925 "uCode alternative %d not available, choosing %d\n",
1926 tmp
, wanted_alternative
);
1928 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1929 pieces
->build
= le32_to_cpu(ucode
->build
);
1932 len
-= sizeof(*ucode
);
1934 while (len
>= sizeof(*tlv
)) {
1937 len
-= sizeof(*tlv
);
1940 tlv_len
= le32_to_cpu(tlv
->length
);
1941 tlv_type
= le16_to_cpu(tlv
->type
);
1942 tlv_alt
= le16_to_cpu(tlv
->alternative
);
1943 tlv_data
= tlv
->data
;
1945 if (len
< tlv_len
) {
1946 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
1950 len
-= ALIGN(tlv_len
, 4);
1951 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
1954 * Alternative 0 is always valid.
1956 * Skip alternative TLVs that are not selected.
1958 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
1962 case IWL_UCODE_TLV_INST
:
1963 pieces
->inst
= tlv_data
;
1964 pieces
->inst_size
= tlv_len
;
1966 case IWL_UCODE_TLV_DATA
:
1967 pieces
->data
= tlv_data
;
1968 pieces
->data_size
= tlv_len
;
1970 case IWL_UCODE_TLV_INIT
:
1971 pieces
->init
= tlv_data
;
1972 pieces
->init_size
= tlv_len
;
1974 case IWL_UCODE_TLV_INIT_DATA
:
1975 pieces
->init_data
= tlv_data
;
1976 pieces
->init_data_size
= tlv_len
;
1978 case IWL_UCODE_TLV_BOOT
:
1979 pieces
->boot
= tlv_data
;
1980 pieces
->boot_size
= tlv_len
;
1982 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
1983 if (tlv_len
!= sizeof(u32
))
1984 goto invalid_tlv_len
;
1985 capa
->max_probe_length
=
1986 le32_to_cpup((__le32
*)tlv_data
);
1988 case IWL_UCODE_TLV_PAN
:
1990 goto invalid_tlv_len
;
1993 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
1994 if (tlv_len
!= sizeof(u32
))
1995 goto invalid_tlv_len
;
1996 pieces
->init_evtlog_ptr
=
1997 le32_to_cpup((__le32
*)tlv_data
);
1999 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
2000 if (tlv_len
!= sizeof(u32
))
2001 goto invalid_tlv_len
;
2002 pieces
->init_evtlog_size
=
2003 le32_to_cpup((__le32
*)tlv_data
);
2005 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
2006 if (tlv_len
!= sizeof(u32
))
2007 goto invalid_tlv_len
;
2008 pieces
->init_errlog_ptr
=
2009 le32_to_cpup((__le32
*)tlv_data
);
2011 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
2012 if (tlv_len
!= sizeof(u32
))
2013 goto invalid_tlv_len
;
2014 pieces
->inst_evtlog_ptr
=
2015 le32_to_cpup((__le32
*)tlv_data
);
2017 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
2018 if (tlv_len
!= sizeof(u32
))
2019 goto invalid_tlv_len
;
2020 pieces
->inst_evtlog_size
=
2021 le32_to_cpup((__le32
*)tlv_data
);
2023 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
2024 if (tlv_len
!= sizeof(u32
))
2025 goto invalid_tlv_len
;
2026 pieces
->inst_errlog_ptr
=
2027 le32_to_cpup((__le32
*)tlv_data
);
2029 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
2031 goto invalid_tlv_len
;
2032 priv
->enhance_sensitivity_table
= true;
2034 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
2035 if (tlv_len
!= sizeof(u32
))
2036 goto invalid_tlv_len
;
2037 capa
->standard_phy_calibration_size
=
2038 le32_to_cpup((__le32
*)tlv_data
);
2041 IWL_WARN(priv
, "unknown TLV: %d\n", tlv_type
);
2047 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
2048 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
2055 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
2056 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
2062 * iwl_ucode_callback - callback when firmware was loaded
2064 * If loaded successfully, copies the firmware into buffers
2065 * for the card to fetch (via DMA).
2067 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
2069 struct iwl_priv
*priv
= context
;
2070 struct iwl_ucode_header
*ucode
;
2072 struct iwlagn_firmware_pieces pieces
;
2073 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
2074 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
2078 struct iwlagn_ucode_capabilities ucode_capa
= {
2079 .max_probe_length
= 200,
2080 .standard_phy_calibration_size
=
2081 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
2084 memset(&pieces
, 0, sizeof(pieces
));
2087 if (priv
->fw_index
<= priv
->cfg
->ucode_api_max
)
2089 "request for firmware file '%s' failed.\n",
2090 priv
->firmware_name
);
2094 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
2095 priv
->firmware_name
, ucode_raw
->size
);
2097 /* Make sure that we got at least the API version number */
2098 if (ucode_raw
->size
< 4) {
2099 IWL_ERR(priv
, "File size way too small!\n");
2103 /* Data from ucode file: header followed by uCode images */
2104 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
2107 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
2109 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
2115 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
2116 build
= pieces
.build
;
2119 * api_ver should match the api version forming part of the
2120 * firmware filename ... but we don't check for that and only rely
2121 * on the API version read from firmware header from here on forward
2123 if (api_ver
< api_min
|| api_ver
> api_max
) {
2124 IWL_ERR(priv
, "Driver unable to support your firmware API. "
2125 "Driver supports v%u, firmware is v%u.\n",
2130 if (api_ver
!= api_max
)
2131 IWL_ERR(priv
, "Firmware has old API version. Expected v%u, "
2132 "got v%u. New firmware can be obtained "
2133 "from http://www.intellinuxwireless.org.\n",
2137 sprintf(buildstr
, " build %u%s", build
,
2138 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
2143 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
2144 IWL_UCODE_MAJOR(priv
->ucode_ver
),
2145 IWL_UCODE_MINOR(priv
->ucode_ver
),
2146 IWL_UCODE_API(priv
->ucode_ver
),
2147 IWL_UCODE_SERIAL(priv
->ucode_ver
),
2150 snprintf(priv
->hw
->wiphy
->fw_version
,
2151 sizeof(priv
->hw
->wiphy
->fw_version
),
2153 IWL_UCODE_MAJOR(priv
->ucode_ver
),
2154 IWL_UCODE_MINOR(priv
->ucode_ver
),
2155 IWL_UCODE_API(priv
->ucode_ver
),
2156 IWL_UCODE_SERIAL(priv
->ucode_ver
),
2160 * For any of the failures below (before allocating pci memory)
2161 * we will try to load a version with a smaller API -- maybe the
2162 * user just got a corrupted version of the latest API.
2165 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
2167 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
2169 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
2171 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
2173 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
2174 pieces
.init_data_size
);
2175 IWL_DEBUG_INFO(priv
, "f/w package hdr boot inst size = %Zd\n",
2178 /* Verify that uCode images will fit in card's SRAM */
2179 if (pieces
.inst_size
> priv
->hw_params
.max_inst_size
) {
2180 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
2185 if (pieces
.data_size
> priv
->hw_params
.max_data_size
) {
2186 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
2191 if (pieces
.init_size
> priv
->hw_params
.max_inst_size
) {
2192 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
2197 if (pieces
.init_data_size
> priv
->hw_params
.max_data_size
) {
2198 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
2199 pieces
.init_data_size
);
2203 if (pieces
.boot_size
> priv
->hw_params
.max_bsm_size
) {
2204 IWL_ERR(priv
, "uCode boot instr len %Zd too large to fit in\n",
2209 /* Allocate ucode buffers for card's bus-master loading ... */
2211 /* Runtime instructions and 2 copies of data:
2212 * 1) unmodified from disk
2213 * 2) backup cache for save/restore during power-downs */
2214 priv
->ucode_code
.len
= pieces
.inst_size
;
2215 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
2217 priv
->ucode_data
.len
= pieces
.data_size
;
2218 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
2220 priv
->ucode_data_backup
.len
= pieces
.data_size
;
2221 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
2223 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
2224 !priv
->ucode_data_backup
.v_addr
)
2227 /* Initialization instructions and data */
2228 if (pieces
.init_size
&& pieces
.init_data_size
) {
2229 priv
->ucode_init
.len
= pieces
.init_size
;
2230 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
2232 priv
->ucode_init_data
.len
= pieces
.init_data_size
;
2233 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
2235 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
2239 /* Bootstrap (instructions only, no data) */
2240 if (pieces
.boot_size
) {
2241 priv
->ucode_boot
.len
= pieces
.boot_size
;
2242 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
2244 if (!priv
->ucode_boot
.v_addr
)
2248 /* Now that we can no longer fail, copy information */
2251 * The (size - 16) / 12 formula is based on the information recorded
2252 * for each event, which is of mode 1 (including timestamp) for all
2253 * new microcodes that include this information.
2255 priv
->_agn
.init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
2256 if (pieces
.init_evtlog_size
)
2257 priv
->_agn
.init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
2259 priv
->_agn
.init_evtlog_size
=
2260 priv
->cfg
->base_params
->max_event_log_size
;
2261 priv
->_agn
.init_errlog_ptr
= pieces
.init_errlog_ptr
;
2262 priv
->_agn
.inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
2263 if (pieces
.inst_evtlog_size
)
2264 priv
->_agn
.inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
2266 priv
->_agn
.inst_evtlog_size
=
2267 priv
->cfg
->base_params
->max_event_log_size
;
2268 priv
->_agn
.inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
2270 if (ucode_capa
.pan
) {
2271 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
2272 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
2274 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
2276 /* Copy images into buffers for card's bus-master reads ... */
2278 /* Runtime instructions (first block of data in file) */
2279 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode instr len %Zd\n",
2281 memcpy(priv
->ucode_code
.v_addr
, pieces
.inst
, pieces
.inst_size
);
2283 IWL_DEBUG_INFO(priv
, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2284 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
2288 * NOTE: Copy into backup buffer will be done in iwl_up()
2290 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode data len %Zd\n",
2292 memcpy(priv
->ucode_data
.v_addr
, pieces
.data
, pieces
.data_size
);
2293 memcpy(priv
->ucode_data_backup
.v_addr
, pieces
.data
, pieces
.data_size
);
2295 /* Initialization instructions */
2296 if (pieces
.init_size
) {
2297 IWL_DEBUG_INFO(priv
, "Copying (but not loading) init instr len %Zd\n",
2299 memcpy(priv
->ucode_init
.v_addr
, pieces
.init
, pieces
.init_size
);
2302 /* Initialization data */
2303 if (pieces
.init_data_size
) {
2304 IWL_DEBUG_INFO(priv
, "Copying (but not loading) init data len %Zd\n",
2305 pieces
.init_data_size
);
2306 memcpy(priv
->ucode_init_data
.v_addr
, pieces
.init_data
,
2307 pieces
.init_data_size
);
2310 /* Bootstrap instructions */
2311 IWL_DEBUG_INFO(priv
, "Copying (but not loading) boot instr len %Zd\n",
2313 memcpy(priv
->ucode_boot
.v_addr
, pieces
.boot
, pieces
.boot_size
);
2316 * figure out the offset of chain noise reset and gain commands
2317 * base on the size of standard phy calibration commands table size
2319 if (ucode_capa
.standard_phy_calibration_size
>
2320 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
2321 ucode_capa
.standard_phy_calibration_size
=
2322 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
2324 priv
->_agn
.phy_calib_chain_noise_reset_cmd
=
2325 ucode_capa
.standard_phy_calibration_size
;
2326 priv
->_agn
.phy_calib_chain_noise_gain_cmd
=
2327 ucode_capa
.standard_phy_calibration_size
+ 1;
2329 /**************************************************
2330 * This is still part of probe() in a sense...
2332 * 9. Setup and register with mac80211 and debugfs
2333 **************************************************/
2334 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
2338 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
2340 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
2342 err
= sysfs_create_group(&priv
->pci_dev
->dev
.kobj
,
2343 &iwl_attribute_group
);
2345 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
2349 /* We have our copies now, allow OS release its copies */
2350 release_firmware(ucode_raw
);
2351 complete(&priv
->_agn
.firmware_loading_complete
);
2355 /* try next, if any */
2356 if (iwl_request_firmware(priv
, false))
2358 release_firmware(ucode_raw
);
2362 IWL_ERR(priv
, "failed to allocate pci memory\n");
2363 iwl_dealloc_ucode_pci(priv
);
2365 complete(&priv
->_agn
.firmware_loading_complete
);
2366 device_release_driver(&priv
->pci_dev
->dev
);
2367 release_firmware(ucode_raw
);
2370 static const char *desc_lookup_text
[] = {
2375 "NMI_INTERRUPT_WDG",
2379 "HW_ERROR_TUNE_LOCK",
2380 "HW_ERROR_TEMPERATURE",
2381 "ILLEGAL_CHAN_FREQ",
2384 "NMI_INTERRUPT_HOST",
2385 "NMI_INTERRUPT_ACTION_PT",
2386 "NMI_INTERRUPT_UNKNOWN",
2387 "UCODE_VERSION_MISMATCH",
2388 "HW_ERROR_ABS_LOCK",
2389 "HW_ERROR_CAL_LOCK_FAIL",
2390 "NMI_INTERRUPT_INST_ACTION_PT",
2391 "NMI_INTERRUPT_DATA_ACTION_PT",
2393 "NMI_INTERRUPT_TRM",
2394 "NMI_INTERRUPT_BREAK_POINT"
2401 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
2402 { "NMI_INTERRUPT_WDG", 0x34 },
2403 { "SYSASSERT", 0x35 },
2404 { "UCODE_VERSION_MISMATCH", 0x37 },
2405 { "BAD_COMMAND", 0x38 },
2406 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
2407 { "FATAL_ERROR", 0x3D },
2408 { "NMI_TRM_HW_ERR", 0x46 },
2409 { "NMI_INTERRUPT_TRM", 0x4C },
2410 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
2411 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
2412 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
2413 { "NMI_INTERRUPT_HOST", 0x66 },
2414 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
2415 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
2416 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
2417 { "ADVANCED_SYSASSERT", 0 },
2420 static const char *desc_lookup(u32 num
)
2423 int max
= ARRAY_SIZE(desc_lookup_text
);
2426 return desc_lookup_text
[num
];
2428 max
= ARRAY_SIZE(advanced_lookup
) - 1;
2429 for (i
= 0; i
< max
; i
++) {
2430 if (advanced_lookup
[i
].num
== num
)
2433 return advanced_lookup
[i
].name
;
2436 #define ERROR_START_OFFSET (1 * sizeof(u32))
2437 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
2439 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
2442 u32 desc
, time
, count
, base
, data1
;
2443 u32 blink1
, blink2
, ilink1
, ilink2
;
2446 if (priv
->ucode_type
== UCODE_INIT
) {
2447 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
2449 base
= priv
->_agn
.init_errlog_ptr
;
2451 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
2453 base
= priv
->_agn
.inst_errlog_ptr
;
2456 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
2458 "Not valid error log pointer 0x%08X for %s uCode\n",
2459 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
2463 count
= iwl_read_targ_mem(priv
, base
);
2465 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
2466 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
2467 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
2468 priv
->status
, count
);
2471 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
2472 priv
->isr_stats
.err_code
= desc
;
2473 pc
= iwl_read_targ_mem(priv
, base
+ 2 * sizeof(u32
));
2474 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
2475 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
2476 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
2477 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
2478 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
2479 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
2480 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
2481 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
2482 hcmd
= iwl_read_targ_mem(priv
, base
+ 22 * sizeof(u32
));
2484 trace_iwlwifi_dev_ucode_error(priv
, desc
, time
, data1
, data2
, line
,
2485 blink1
, blink2
, ilink1
, ilink2
);
2487 IWL_ERR(priv
, "Desc Time "
2488 "data1 data2 line\n");
2489 IWL_ERR(priv
, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
2490 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
2491 IWL_ERR(priv
, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
2492 IWL_ERR(priv
, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
2493 pc
, blink1
, blink2
, ilink1
, ilink2
, hcmd
);
2496 #define EVENT_START_OFFSET (4 * sizeof(u32))
2499 * iwl_print_event_log - Dump error event log to syslog
2502 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
2503 u32 num_events
, u32 mode
,
2504 int pos
, char **buf
, size_t bufsz
)
2507 u32 base
; /* SRAM byte address of event log header */
2508 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
2509 u32 ptr
; /* SRAM byte address of log data */
2510 u32 ev
, time
, data
; /* event log data */
2511 unsigned long reg_flags
;
2513 if (num_events
== 0)
2516 if (priv
->ucode_type
== UCODE_INIT
) {
2517 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
2519 base
= priv
->_agn
.init_evtlog_ptr
;
2521 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
2523 base
= priv
->_agn
.inst_evtlog_ptr
;
2527 event_size
= 2 * sizeof(u32
);
2529 event_size
= 3 * sizeof(u32
);
2531 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
2533 /* Make sure device is powered up for SRAM reads */
2534 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
2535 iwl_grab_nic_access(priv
);
2537 /* Set starting address; reads will auto-increment */
2538 _iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
2541 /* "time" is actually "data" for mode 0 (no timestamp).
2542 * place event id # at far right for easier visual parsing. */
2543 for (i
= 0; i
< num_events
; i
++) {
2544 ev
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2545 time
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2549 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
2550 "EVT_LOG:0x%08x:%04u\n",
2553 trace_iwlwifi_dev_ucode_event(priv
, 0,
2555 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
2559 data
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2561 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
2562 "EVT_LOGT:%010u:0x%08x:%04u\n",
2565 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
2567 trace_iwlwifi_dev_ucode_event(priv
, time
,
2573 /* Allow device to power down */
2574 iwl_release_nic_access(priv
);
2575 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
2580 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
2582 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
2583 u32 num_wraps
, u32 next_entry
,
2585 int pos
, char **buf
, size_t bufsz
)
2588 * display the newest DEFAULT_LOG_ENTRIES entries
2589 * i.e the entries just before the next ont that uCode would fill.
2592 if (next_entry
< size
) {
2593 pos
= iwl_print_event_log(priv
,
2594 capacity
- (size
- next_entry
),
2595 size
- next_entry
, mode
,
2597 pos
= iwl_print_event_log(priv
, 0,
2601 pos
= iwl_print_event_log(priv
, next_entry
- size
,
2602 size
, mode
, pos
, buf
, bufsz
);
2604 if (next_entry
< size
) {
2605 pos
= iwl_print_event_log(priv
, 0, next_entry
,
2606 mode
, pos
, buf
, bufsz
);
2608 pos
= iwl_print_event_log(priv
, next_entry
- size
,
2609 size
, mode
, pos
, buf
, bufsz
);
2615 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
2617 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
2618 char **buf
, bool display
)
2620 u32 base
; /* SRAM byte address of event log header */
2621 u32 capacity
; /* event log capacity in # entries */
2622 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
2623 u32 num_wraps
; /* # times uCode wrapped to top of log */
2624 u32 next_entry
; /* index of next entry to be written by uCode */
2625 u32 size
; /* # entries that we'll print */
2630 if (priv
->ucode_type
== UCODE_INIT
) {
2631 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
2632 logsize
= priv
->_agn
.init_evtlog_size
;
2634 base
= priv
->_agn
.init_evtlog_ptr
;
2636 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
2637 logsize
= priv
->_agn
.inst_evtlog_size
;
2639 base
= priv
->_agn
.inst_evtlog_ptr
;
2642 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
2644 "Invalid event log pointer 0x%08X for %s uCode\n",
2645 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
2649 /* event log header */
2650 capacity
= iwl_read_targ_mem(priv
, base
);
2651 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
2652 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
2653 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
2655 if (capacity
> logsize
) {
2656 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
2661 if (next_entry
> logsize
) {
2662 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
2663 next_entry
, logsize
);
2664 next_entry
= logsize
;
2667 size
= num_wraps
? capacity
: next_entry
;
2669 /* bail out if nothing in log */
2671 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
2675 /* enable/disable bt channel announcement */
2676 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
2678 #ifdef CONFIG_IWLWIFI_DEBUG
2679 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
2680 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2681 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2683 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2684 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2686 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
2689 #ifdef CONFIG_IWLWIFI_DEBUG
2692 bufsz
= capacity
* 48;
2695 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
2699 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
2701 * if uCode has wrapped back to top of log,
2702 * start at the oldest entry,
2703 * i.e the next one that uCode would fill.
2706 pos
= iwl_print_event_log(priv
, next_entry
,
2707 capacity
- next_entry
, mode
,
2709 /* (then/else) start at top of log */
2710 pos
= iwl_print_event_log(priv
, 0,
2711 next_entry
, mode
, pos
, buf
, bufsz
);
2713 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2714 next_entry
, size
, mode
,
2717 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2718 next_entry
, size
, mode
,
2724 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
2726 struct iwl_ct_kill_config cmd
;
2727 struct iwl_ct_kill_throttling_config adv_cmd
;
2728 unsigned long flags
;
2731 spin_lock_irqsave(&priv
->lock
, flags
);
2732 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2733 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2734 spin_unlock_irqrestore(&priv
->lock
, flags
);
2735 priv
->thermal_throttle
.ct_kill_toggle
= false;
2737 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
2738 adv_cmd
.critical_temperature_enter
=
2739 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2740 adv_cmd
.critical_temperature_exit
=
2741 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
2743 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2744 sizeof(adv_cmd
), &adv_cmd
);
2746 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2748 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2750 "critical temperature enter is %d,"
2752 priv
->hw_params
.ct_kill_threshold
,
2753 priv
->hw_params
.ct_kill_exit_threshold
);
2755 cmd
.critical_temperature_R
=
2756 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2758 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2761 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2763 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2765 "critical temperature is %d\n",
2766 priv
->hw_params
.ct_kill_threshold
);
2770 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
2772 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
2773 struct iwl_host_cmd cmd
= {
2774 .id
= CALIBRATION_CFG_CMD
,
2775 .len
= sizeof(struct iwl_calib_cfg_cmd
),
2776 .data
= &calib_cfg_cmd
,
2779 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
2780 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
2781 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
2783 return iwl_send_cmd(priv
, &cmd
);
2788 * iwl_alive_start - called after REPLY_ALIVE notification received
2789 * from protocol/runtime uCode (initialization uCode's
2790 * Alive gets handled by iwl_init_alive_start()).
2792 static void iwl_alive_start(struct iwl_priv
*priv
)
2795 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2797 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
2799 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
2800 /* We had an error bringing up the hardware, so take it
2801 * all the way back down so we can try again */
2802 IWL_DEBUG_INFO(priv
, "Alive failed.\n");
2806 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2807 * This is a paranoid check, because we would not have gotten the
2808 * "runtime" alive if code weren't properly loaded. */
2809 if (iwl_verify_ucode(priv
)) {
2810 /* Runtime instruction load was bad;
2811 * take it all the way back down so we can try again */
2812 IWL_DEBUG_INFO(priv
, "Bad runtime uCode load.\n");
2816 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
2819 "Could not complete ALIVE transition [ntf]: %d\n", ret
);
2823 if (priv
->hw_params
.calib_rt_cfg
)
2824 iwlagn_send_calib_cfg_rt(priv
, priv
->hw_params
.calib_rt_cfg
);
2827 /* After the ALIVE response, we can send host commands to the uCode */
2828 set_bit(STATUS_ALIVE
, &priv
->status
);
2830 if (priv
->cfg
->ops
->lib
->recover_from_tx_stall
) {
2831 /* Enable timer to monitor the driver queues */
2832 mod_timer(&priv
->monitor_recover
,
2835 priv
->cfg
->base_params
->monitor_recover_period
));
2838 if (iwl_is_rfkill(priv
))
2841 if (priv
->cfg
->bt_params
&&
2842 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
2843 /* Configure Bluetooth device coexistence support */
2844 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
2845 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
2846 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
2847 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
2848 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
2849 if (bt_coex_active
&& priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
)
2850 iwlagn_send_prio_tbl(priv
);
2852 /* FIXME: w/a to force change uCode BT state machine */
2853 iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
2854 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
2855 iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
2856 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
2858 ieee80211_wake_queues(priv
->hw
);
2860 priv
->active_rate
= IWL_RATES_MASK
;
2862 /* Configure Tx antenna selection based on H/W config */
2863 if (priv
->cfg
->ops
->hcmd
->set_tx_ant
)
2864 priv
->cfg
->ops
->hcmd
->set_tx_ant(priv
, priv
->cfg
->valid_tx_ant
);
2866 if (iwl_is_associated_ctx(ctx
)) {
2867 struct iwl_rxon_cmd
*active_rxon
=
2868 (struct iwl_rxon_cmd
*)&ctx
->active
;
2869 /* apply any changes in staging */
2870 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2871 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2873 struct iwl_rxon_context
*tmp
;
2874 /* Initialize our rx_config data */
2875 for_each_context(priv
, tmp
)
2876 iwl_connection_init_rx_config(priv
, tmp
);
2878 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2879 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
2882 if (priv
->cfg
->bt_params
&&
2883 !priv
->cfg
->bt_params
->advanced_bt_coexist
) {
2884 /* Configure Bluetooth device coexistence support */
2885 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
2888 iwl_reset_run_time_calib(priv
);
2890 /* Configure the adapter for unassociated operation */
2891 iwlcore_commit_rxon(priv
, ctx
);
2893 /* At this point, the NIC is initialized and operational */
2894 iwl_rf_kill_ct_config(priv
);
2896 iwl_leds_init(priv
);
2898 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
2899 set_bit(STATUS_READY
, &priv
->status
);
2900 wake_up_interruptible(&priv
->wait_command_queue
);
2902 iwl_power_update_mode(priv
, true);
2903 IWL_DEBUG_INFO(priv
, "Updated power mode\n");
2909 queue_work(priv
->workqueue
, &priv
->restart
);
2912 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
2914 static void __iwl_down(struct iwl_priv
*priv
)
2916 unsigned long flags
;
2917 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2919 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
2921 iwl_scan_cancel_timeout(priv
, 200);
2923 exit_pending
= test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2925 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
2926 * to prevent rearm timer */
2927 if (priv
->cfg
->ops
->lib
->recover_from_tx_stall
)
2928 del_timer_sync(&priv
->monitor_recover
);
2930 iwl_clear_ucode_stations(priv
, NULL
);
2931 iwl_dealloc_bcast_stations(priv
);
2932 iwl_clear_driver_stations(priv
);
2934 /* reset BT coex data */
2935 priv
->bt_status
= 0;
2936 if (priv
->cfg
->bt_params
)
2937 priv
->bt_traffic_load
=
2938 priv
->cfg
->bt_params
->bt_init_traffic_load
;
2940 priv
->bt_traffic_load
= 0;
2941 priv
->bt_sco_active
= false;
2942 priv
->bt_full_concurrent
= false;
2943 priv
->bt_ci_compliance
= 0;
2945 /* Unblock any waiting calls */
2946 wake_up_interruptible_all(&priv
->wait_command_queue
);
2948 /* Wipe out the EXIT_PENDING status bit if we are not actually
2949 * exiting the module */
2951 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2953 /* stop and reset the on-board processor */
2954 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2956 /* tell the device to stop sending interrupts */
2957 spin_lock_irqsave(&priv
->lock
, flags
);
2958 iwl_disable_interrupts(priv
);
2959 spin_unlock_irqrestore(&priv
->lock
, flags
);
2960 iwl_synchronize_irq(priv
);
2962 if (priv
->mac80211_registered
)
2963 ieee80211_stop_queues(priv
->hw
);
2965 /* If we have not previously called iwl_init() then
2966 * clear all bits but the RF Kill bit and return */
2967 if (!iwl_is_init(priv
)) {
2968 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2970 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2971 STATUS_GEO_CONFIGURED
|
2972 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2973 STATUS_EXIT_PENDING
;
2977 /* ...otherwise clear out all the status bits but the RF Kill
2978 * bit and continue taking the NIC down. */
2979 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2981 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2982 STATUS_GEO_CONFIGURED
|
2983 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2985 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2986 STATUS_EXIT_PENDING
;
2988 /* device going down, Stop using ICT table */
2989 iwl_disable_ict(priv
);
2991 iwlagn_txq_ctx_stop(priv
);
2992 iwlagn_rxq_stop(priv
);
2994 /* Power-down device's busmaster DMA clocks */
2995 iwl_write_prph(priv
, APMG_CLK_DIS_REG
, APMG_CLK_VAL_DMA_CLK_RQT
);
2998 /* Make sure (redundant) we've released our request to stay awake */
2999 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3001 /* Stop the device, and put it in low power state */
3002 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3005 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
3007 if (priv
->ibss_beacon
)
3008 dev_kfree_skb(priv
->ibss_beacon
);
3009 priv
->ibss_beacon
= NULL
;
3011 /* clear out any free frames */
3012 iwl_clear_free_frames(priv
);
3015 static void iwl_down(struct iwl_priv
*priv
)
3017 mutex_lock(&priv
->mutex
);
3019 mutex_unlock(&priv
->mutex
);
3021 iwl_cancel_deferred_work(priv
);
3024 #define HW_READY_TIMEOUT (50)
3026 static int iwl_set_hw_ready(struct iwl_priv
*priv
)
3030 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
3031 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
);
3033 /* See if we got it */
3034 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
3035 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
3036 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
3038 if (ret
!= -ETIMEDOUT
)
3039 priv
->hw_ready
= true;
3041 priv
->hw_ready
= false;
3043 IWL_DEBUG_INFO(priv
, "hardware %s\n",
3044 (priv
->hw_ready
== 1) ? "ready" : "not ready");
3048 static int iwl_prepare_card_hw(struct iwl_priv
*priv
)
3052 IWL_DEBUG_INFO(priv
, "iwl_prepare_card_hw enter\n");
3054 ret
= iwl_set_hw_ready(priv
);
3058 /* If HW is not ready, prepare the conditions to check again */
3059 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
3060 CSR_HW_IF_CONFIG_REG_PREPARE
);
3062 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
3063 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
,
3064 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
, 150000);
3066 /* HW should be ready by now, check again. */
3067 if (ret
!= -ETIMEDOUT
)
3068 iwl_set_hw_ready(priv
);
3073 #define MAX_HW_RESTARTS 5
3075 static int __iwl_up(struct iwl_priv
*priv
)
3077 struct iwl_rxon_context
*ctx
;
3081 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3082 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
3086 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
3087 IWL_ERR(priv
, "ucode not available for device bringup\n");
3091 for_each_context(priv
, ctx
) {
3092 ret
= iwl_alloc_bcast_station(priv
, ctx
, true);
3094 iwl_dealloc_bcast_stations(priv
);
3099 iwl_prepare_card_hw(priv
);
3101 if (!priv
->hw_ready
) {
3102 IWL_WARN(priv
, "Exit HW not ready\n");
3106 /* If platform's RF_KILL switch is NOT set to KILL */
3107 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3108 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3110 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3112 if (iwl_is_rfkill(priv
)) {
3113 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, true);
3115 iwl_enable_interrupts(priv
);
3116 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
3120 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3122 /* must be initialised before iwl_hw_nic_init */
3123 if (priv
->valid_contexts
!= BIT(IWL_RXON_CTX_BSS
))
3124 priv
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
3126 priv
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
3128 ret
= iwlagn_hw_nic_init(priv
);
3130 IWL_ERR(priv
, "Unable to init nic\n");
3134 /* make sure rfkill handshake bits are cleared */
3135 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3136 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3137 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3139 /* clear (again), then enable host interrupts */
3140 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3141 iwl_enable_interrupts(priv
);
3143 /* really make sure rfkill handshake bits are cleared */
3144 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3145 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3147 /* Copy original ucode data image from disk into backup cache.
3148 * This will be used to initialize the on-board processor's
3149 * data SRAM for a clean start when the runtime program first loads. */
3150 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
3151 priv
->ucode_data
.len
);
3153 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
3155 /* load bootstrap state machine,
3156 * load bootstrap program into processor's memory,
3157 * prepare to load the "initialize" uCode */
3158 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
3161 IWL_ERR(priv
, "Unable to set up bootstrap uCode: %d\n",
3166 /* start card; "initialize" will load runtime ucode */
3167 iwl_nic_start(priv
);
3169 IWL_DEBUG_INFO(priv
, DRV_NAME
" is coming up\n");
3174 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3176 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3178 /* tried to restart and config the device for as long as our
3179 * patience could withstand */
3180 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
3185 /*****************************************************************************
3187 * Workqueue callbacks
3189 *****************************************************************************/
3191 static void iwl_bg_init_alive_start(struct work_struct
*data
)
3193 struct iwl_priv
*priv
=
3194 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
3196 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3199 mutex_lock(&priv
->mutex
);
3200 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
3201 mutex_unlock(&priv
->mutex
);
3204 static void iwl_bg_alive_start(struct work_struct
*data
)
3206 struct iwl_priv
*priv
=
3207 container_of(data
, struct iwl_priv
, alive_start
.work
);
3209 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3212 /* enable dram interrupt */
3213 iwl_reset_ict(priv
);
3215 mutex_lock(&priv
->mutex
);
3216 iwl_alive_start(priv
);
3217 mutex_unlock(&priv
->mutex
);
3220 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
3222 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
3223 run_time_calib_work
);
3225 mutex_lock(&priv
->mutex
);
3227 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
3228 test_bit(STATUS_SCANNING
, &priv
->status
)) {
3229 mutex_unlock(&priv
->mutex
);
3233 if (priv
->start_calib
) {
3234 if (priv
->cfg
->bt_params
&&
3235 priv
->cfg
->bt_params
->bt_statistics
) {
3236 iwl_chain_noise_calibration(priv
,
3237 (void *)&priv
->_agn
.statistics_bt
);
3238 iwl_sensitivity_calibration(priv
,
3239 (void *)&priv
->_agn
.statistics_bt
);
3241 iwl_chain_noise_calibration(priv
,
3242 (void *)&priv
->_agn
.statistics
);
3243 iwl_sensitivity_calibration(priv
,
3244 (void *)&priv
->_agn
.statistics
);
3248 mutex_unlock(&priv
->mutex
);
3251 static void iwl_bg_restart(struct work_struct
*data
)
3253 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
3255 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3258 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
3259 struct iwl_rxon_context
*ctx
;
3260 bool bt_sco
, bt_full_concurrent
;
3261 u8 bt_ci_compliance
;
3265 mutex_lock(&priv
->mutex
);
3266 for_each_context(priv
, ctx
)
3271 * __iwl_down() will clear the BT status variables,
3272 * which is correct, but when we restart we really
3273 * want to keep them so restore them afterwards.
3275 * The restart process will later pick them up and
3276 * re-configure the hw when we reconfigure the BT
3279 bt_sco
= priv
->bt_sco_active
;
3280 bt_full_concurrent
= priv
->bt_full_concurrent
;
3281 bt_ci_compliance
= priv
->bt_ci_compliance
;
3282 bt_load
= priv
->bt_traffic_load
;
3283 bt_status
= priv
->bt_status
;
3287 priv
->bt_sco_active
= bt_sco
;
3288 priv
->bt_full_concurrent
= bt_full_concurrent
;
3289 priv
->bt_ci_compliance
= bt_ci_compliance
;
3290 priv
->bt_traffic_load
= bt_load
;
3291 priv
->bt_status
= bt_status
;
3293 mutex_unlock(&priv
->mutex
);
3294 iwl_cancel_deferred_work(priv
);
3295 ieee80211_restart_hw(priv
->hw
);
3299 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3302 mutex_lock(&priv
->mutex
);
3304 mutex_unlock(&priv
->mutex
);
3308 static void iwl_bg_rx_replenish(struct work_struct
*data
)
3310 struct iwl_priv
*priv
=
3311 container_of(data
, struct iwl_priv
, rx_replenish
);
3313 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3316 mutex_lock(&priv
->mutex
);
3317 iwlagn_rx_replenish(priv
);
3318 mutex_unlock(&priv
->mutex
);
3321 #define IWL_DELAY_NEXT_SCAN (HZ*2)
3323 void iwl_post_associate(struct iwl_priv
*priv
, struct ieee80211_vif
*vif
)
3325 struct iwl_rxon_context
*ctx
;
3326 struct ieee80211_conf
*conf
= NULL
;
3329 if (!vif
|| !priv
->is_open
)
3332 ctx
= iwl_rxon_ctx_from_vif(vif
);
3334 if (vif
->type
== NL80211_IFTYPE_AP
) {
3335 IWL_ERR(priv
, "%s Should not be called in AP mode\n", __func__
);
3339 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3342 iwl_scan_cancel_timeout(priv
, 200);
3344 conf
= ieee80211_get_hw_conf(priv
->hw
);
3346 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3347 iwlcore_commit_rxon(priv
, ctx
);
3349 ret
= iwl_send_rxon_timing(priv
, ctx
);
3351 IWL_WARN(priv
, "RXON timing - "
3352 "Attempting to continue.\n");
3354 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
3356 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
3358 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
3359 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
3361 ctx
->staging
.assoc_id
= cpu_to_le16(vif
->bss_conf
.aid
);
3363 IWL_DEBUG_ASSOC(priv
, "assoc id %d beacon interval %d\n",
3364 vif
->bss_conf
.aid
, vif
->bss_conf
.beacon_int
);
3366 if (vif
->bss_conf
.use_short_preamble
)
3367 ctx
->staging
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
3369 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3371 if (ctx
->staging
.flags
& RXON_FLG_BAND_24G_MSK
) {
3372 if (vif
->bss_conf
.use_short_slot
)
3373 ctx
->staging
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
3375 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
3378 iwlcore_commit_rxon(priv
, ctx
);
3380 IWL_DEBUG_ASSOC(priv
, "Associated as %d to: %pM\n",
3381 vif
->bss_conf
.aid
, ctx
->active
.bssid_addr
);
3383 switch (vif
->type
) {
3384 case NL80211_IFTYPE_STATION
:
3386 case NL80211_IFTYPE_ADHOC
:
3387 iwl_send_beacon_cmd(priv
);
3390 IWL_ERR(priv
, "%s Should not be called in %d mode\n",
3391 __func__
, vif
->type
);
3395 /* the chain noise calibration will enabled PM upon completion
3396 * If chain noise has already been run, then we need to enable
3397 * power management here */
3398 if (priv
->chain_noise_data
.state
== IWL_CHAIN_NOISE_DONE
)
3399 iwl_power_update_mode(priv
, false);
3401 /* Enable Rx differential gain and sensitivity calibrations */
3402 iwl_chain_noise_reset(priv
);
3403 priv
->start_calib
= 1;
3407 /*****************************************************************************
3409 * mac80211 entry point functions
3411 *****************************************************************************/
3413 #define UCODE_READY_TIMEOUT (4 * HZ)
3416 * Not a mac80211 entry point function, but it fits in with all the
3417 * other mac80211 functions grouped here.
3419 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
3420 struct iwlagn_ucode_capabilities
*capa
)
3423 struct ieee80211_hw
*hw
= priv
->hw
;
3424 struct iwl_rxon_context
*ctx
;
3426 hw
->rate_control_algorithm
= "iwl-agn-rs";
3428 /* Tell mac80211 our characteristics */
3429 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
3430 IEEE80211_HW_AMPDU_AGGREGATION
|
3431 IEEE80211_HW_NEED_DTIM_PERIOD
|
3432 IEEE80211_HW_SPECTRUM_MGMT
;
3434 if (!priv
->cfg
->base_params
->broken_powersave
)
3435 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
3436 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
3438 if (priv
->cfg
->sku
& IWL_SKU_N
)
3439 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
3440 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
3442 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
3443 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
3445 for_each_context(priv
, ctx
) {
3446 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
3447 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
3450 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
3451 WIPHY_FLAG_DISABLE_BEACON_HINTS
;
3454 * For now, disable PS by default because it affects
3455 * RX performance significantly.
3457 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
3459 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
3460 /* we create the 802.11 header and a zero-length SSID element */
3461 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
3463 /* Default value; 4 EDCA QOS priorities */
3466 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
3468 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
3469 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
3470 &priv
->bands
[IEEE80211_BAND_2GHZ
];
3471 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
3472 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
3473 &priv
->bands
[IEEE80211_BAND_5GHZ
];
3475 ret
= ieee80211_register_hw(priv
->hw
);
3477 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
3480 priv
->mac80211_registered
= 1;
3486 static int iwl_mac_start(struct ieee80211_hw
*hw
)
3488 struct iwl_priv
*priv
= hw
->priv
;
3491 IWL_DEBUG_MAC80211(priv
, "enter\n");
3493 /* we should be verifying the device is ready to be opened */
3494 mutex_lock(&priv
->mutex
);
3495 ret
= __iwl_up(priv
);
3496 mutex_unlock(&priv
->mutex
);
3501 if (iwl_is_rfkill(priv
))
3504 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
3506 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
3507 * mac80211 will not be run successfully. */
3508 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
3509 test_bit(STATUS_READY
, &priv
->status
),
3510 UCODE_READY_TIMEOUT
);
3512 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3513 IWL_ERR(priv
, "START_ALIVE timeout after %dms.\n",
3514 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
3519 iwl_led_start(priv
);
3523 IWL_DEBUG_MAC80211(priv
, "leave\n");
3527 static void iwl_mac_stop(struct ieee80211_hw
*hw
)
3529 struct iwl_priv
*priv
= hw
->priv
;
3531 IWL_DEBUG_MAC80211(priv
, "enter\n");
3540 flush_workqueue(priv
->workqueue
);
3542 /* enable interrupts again in order to receive rfkill changes */
3543 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3544 iwl_enable_interrupts(priv
);
3546 IWL_DEBUG_MAC80211(priv
, "leave\n");
3549 static int iwl_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
3551 struct iwl_priv
*priv
= hw
->priv
;
3553 IWL_DEBUG_MACDUMP(priv
, "enter\n");
3555 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
3556 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
3558 if (iwlagn_tx_skb(priv
, skb
))
3559 dev_kfree_skb_any(skb
);
3561 IWL_DEBUG_MACDUMP(priv
, "leave\n");
3562 return NETDEV_TX_OK
;
3565 void iwl_config_ap(struct iwl_priv
*priv
, struct ieee80211_vif
*vif
)
3567 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
3570 lockdep_assert_held(&priv
->mutex
);
3572 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3575 /* The following should be done only at AP bring up */
3576 if (!iwl_is_associated_ctx(ctx
)) {
3578 /* RXON - unassoc (to set timing command) */
3579 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3580 iwlcore_commit_rxon(priv
, ctx
);
3583 ret
= iwl_send_rxon_timing(priv
, ctx
);
3585 IWL_WARN(priv
, "RXON timing failed - "
3586 "Attempting to continue.\n");
3588 /* AP has all antennas */
3589 priv
->chain_noise_data
.active_chains
=
3590 priv
->hw_params
.valid_rx_ant
;
3591 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
3592 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
3593 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
3595 ctx
->staging
.assoc_id
= 0;
3597 if (vif
->bss_conf
.use_short_preamble
)
3598 ctx
->staging
.flags
|=
3599 RXON_FLG_SHORT_PREAMBLE_MSK
;
3601 ctx
->staging
.flags
&=
3602 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3604 if (ctx
->staging
.flags
& RXON_FLG_BAND_24G_MSK
) {
3605 if (vif
->bss_conf
.use_short_slot
)
3606 ctx
->staging
.flags
|=
3607 RXON_FLG_SHORT_SLOT_MSK
;
3609 ctx
->staging
.flags
&=
3610 ~RXON_FLG_SHORT_SLOT_MSK
;
3612 /* need to send beacon cmd before committing assoc RXON! */
3613 iwl_send_beacon_cmd(priv
);
3614 /* restore RXON assoc */
3615 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
3616 iwlcore_commit_rxon(priv
, ctx
);
3618 iwl_send_beacon_cmd(priv
);
3620 /* FIXME - we need to add code here to detect a totally new
3621 * configuration, reset the AP, unassoc, rxon timing, assoc,
3622 * clear sta table, add BCAST sta... */
3625 static void iwl_mac_update_tkip_key(struct ieee80211_hw
*hw
,
3626 struct ieee80211_vif
*vif
,
3627 struct ieee80211_key_conf
*keyconf
,
3628 struct ieee80211_sta
*sta
,
3629 u32 iv32
, u16
*phase1key
)
3632 struct iwl_priv
*priv
= hw
->priv
;
3633 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
3635 IWL_DEBUG_MAC80211(priv
, "enter\n");
3637 iwl_update_tkip_key(priv
, vif_priv
->ctx
, keyconf
, sta
,
3640 IWL_DEBUG_MAC80211(priv
, "leave\n");
3643 static int iwl_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
3644 struct ieee80211_vif
*vif
,
3645 struct ieee80211_sta
*sta
,
3646 struct ieee80211_key_conf
*key
)
3648 struct iwl_priv
*priv
= hw
->priv
;
3649 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
3650 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
3653 bool is_default_wep_key
= false;
3655 IWL_DEBUG_MAC80211(priv
, "enter\n");
3657 if (priv
->cfg
->mod_params
->sw_crypto
) {
3658 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
3662 sta_id
= iwl_sta_id_or_broadcast(priv
, vif_priv
->ctx
, sta
);
3663 if (sta_id
== IWL_INVALID_STATION
)
3666 mutex_lock(&priv
->mutex
);
3667 iwl_scan_cancel_timeout(priv
, 100);
3670 * If we are getting WEP group key and we didn't receive any key mapping
3671 * so far, we are in legacy wep mode (group key only), otherwise we are
3673 * In legacy wep mode, we use another host command to the uCode.
3675 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
3676 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
3679 is_default_wep_key
= !ctx
->key_mapping_keys
;
3681 is_default_wep_key
=
3682 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
3687 if (is_default_wep_key
)
3688 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
3690 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
,
3693 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
3696 if (is_default_wep_key
)
3697 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
3699 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta_id
);
3701 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
3707 mutex_unlock(&priv
->mutex
);
3708 IWL_DEBUG_MAC80211(priv
, "leave\n");
3713 static int iwl_mac_ampdu_action(struct ieee80211_hw
*hw
,
3714 struct ieee80211_vif
*vif
,
3715 enum ieee80211_ampdu_mlme_action action
,
3716 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
)
3718 struct iwl_priv
*priv
= hw
->priv
;
3721 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
3724 if (!(priv
->cfg
->sku
& IWL_SKU_N
))
3727 mutex_lock(&priv
->mutex
);
3730 case IEEE80211_AMPDU_RX_START
:
3731 IWL_DEBUG_HT(priv
, "start Rx\n");
3732 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
3734 case IEEE80211_AMPDU_RX_STOP
:
3735 IWL_DEBUG_HT(priv
, "stop Rx\n");
3736 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
3737 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3740 case IEEE80211_AMPDU_TX_START
:
3741 IWL_DEBUG_HT(priv
, "start Tx\n");
3742 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
3744 priv
->_agn
.agg_tids_count
++;
3745 IWL_DEBUG_HT(priv
, "priv->_agn.agg_tids_count = %u\n",
3746 priv
->_agn
.agg_tids_count
);
3749 case IEEE80211_AMPDU_TX_STOP
:
3750 IWL_DEBUG_HT(priv
, "stop Tx\n");
3751 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
3752 if ((ret
== 0) && (priv
->_agn
.agg_tids_count
> 0)) {
3753 priv
->_agn
.agg_tids_count
--;
3754 IWL_DEBUG_HT(priv
, "priv->_agn.agg_tids_count = %u\n",
3755 priv
->_agn
.agg_tids_count
);
3757 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3759 if (priv
->cfg
->ht_params
&&
3760 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
3761 struct iwl_station_priv
*sta_priv
=
3762 (void *) sta
->drv_priv
;
3764 * switch off RTS/CTS if it was previously enabled
3767 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
3768 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
3769 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
3770 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
3773 case IEEE80211_AMPDU_TX_OPERATIONAL
:
3774 if (priv
->cfg
->ht_params
&&
3775 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
3776 struct iwl_station_priv
*sta_priv
=
3777 (void *) sta
->drv_priv
;
3780 * switch to RTS/CTS if it is the prefer protection
3781 * method for HT traffic
3784 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
3785 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
3786 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
3787 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
3792 mutex_unlock(&priv
->mutex
);
3797 static void iwl_mac_sta_notify(struct ieee80211_hw
*hw
,
3798 struct ieee80211_vif
*vif
,
3799 enum sta_notify_cmd cmd
,
3800 struct ieee80211_sta
*sta
)
3802 struct iwl_priv
*priv
= hw
->priv
;
3803 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
3807 case STA_NOTIFY_SLEEP
:
3808 WARN_ON(!sta_priv
->client
);
3809 sta_priv
->asleep
= true;
3810 if (atomic_read(&sta_priv
->pending_frames
) > 0)
3811 ieee80211_sta_block_awake(hw
, sta
, true);
3813 case STA_NOTIFY_AWAKE
:
3814 WARN_ON(!sta_priv
->client
);
3815 if (!sta_priv
->asleep
)
3817 sta_priv
->asleep
= false;
3818 sta_id
= iwl_sta_id(sta
);
3819 if (sta_id
!= IWL_INVALID_STATION
)
3820 iwl_sta_modify_ps_wake(priv
, sta_id
);
3827 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
3828 struct ieee80211_vif
*vif
,
3829 struct ieee80211_sta
*sta
)
3831 struct iwl_priv
*priv
= hw
->priv
;
3832 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
3833 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
3834 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
3838 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
3840 mutex_lock(&priv
->mutex
);
3841 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
3843 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
3845 atomic_set(&sta_priv
->pending_frames
, 0);
3846 if (vif
->type
== NL80211_IFTYPE_AP
)
3847 sta_priv
->client
= true;
3849 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
3850 is_ap
, sta
, &sta_id
);
3852 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
3854 /* Should we return success if return code is EEXIST ? */
3855 mutex_unlock(&priv
->mutex
);
3859 sta_priv
->common
.sta_id
= sta_id
;
3861 /* Initialize rate scaling */
3862 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
3864 iwl_rs_rate_init(priv
, sta
, sta_id
);
3865 mutex_unlock(&priv
->mutex
);
3870 static void iwl_mac_channel_switch(struct ieee80211_hw
*hw
,
3871 struct ieee80211_channel_switch
*ch_switch
)
3873 struct iwl_priv
*priv
= hw
->priv
;
3874 const struct iwl_channel_info
*ch_info
;
3875 struct ieee80211_conf
*conf
= &hw
->conf
;
3876 struct ieee80211_channel
*channel
= ch_switch
->channel
;
3877 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
3880 * When we add support for multiple interfaces, we need to
3881 * revisit this. The channel switch command in the device
3882 * only affects the BSS context, but what does that really
3883 * mean? And what if we get a CSA on the second interface?
3884 * This needs a lot of work.
3886 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
3888 unsigned long flags
= 0;
3890 IWL_DEBUG_MAC80211(priv
, "enter\n");
3892 if (iwl_is_rfkill(priv
))
3895 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
3896 test_bit(STATUS_SCANNING
, &priv
->status
))
3899 if (!iwl_is_associated_ctx(ctx
))
3902 /* channel switch in progress */
3903 if (priv
->switch_rxon
.switch_in_progress
== true)
3906 mutex_lock(&priv
->mutex
);
3907 if (priv
->cfg
->ops
->lib
->set_channel_switch
) {
3909 ch
= channel
->hw_value
;
3910 if (le16_to_cpu(ctx
->active
.channel
) != ch
) {
3911 ch_info
= iwl_get_channel_info(priv
,
3914 if (!is_channel_valid(ch_info
)) {
3915 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
3918 spin_lock_irqsave(&priv
->lock
, flags
);
3920 priv
->current_ht_config
.smps
= conf
->smps_mode
;
3922 /* Configure HT40 channels */
3923 ctx
->ht
.enabled
= conf_is_ht(conf
);
3924 if (ctx
->ht
.enabled
) {
3925 if (conf_is_ht40_minus(conf
)) {
3926 ctx
->ht
.extension_chan_offset
=
3927 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
3928 ctx
->ht
.is_40mhz
= true;
3929 } else if (conf_is_ht40_plus(conf
)) {
3930 ctx
->ht
.extension_chan_offset
=
3931 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
3932 ctx
->ht
.is_40mhz
= true;
3934 ctx
->ht
.extension_chan_offset
=
3935 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
3936 ctx
->ht
.is_40mhz
= false;
3939 ctx
->ht
.is_40mhz
= false;
3941 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
3942 ctx
->staging
.flags
= 0;
3944 iwl_set_rxon_channel(priv
, channel
, ctx
);
3945 iwl_set_rxon_ht(priv
, ht_conf
);
3946 iwl_set_flags_for_band(priv
, ctx
, channel
->band
,
3948 spin_unlock_irqrestore(&priv
->lock
, flags
);
3952 * at this point, staging_rxon has the
3953 * configuration for channel switch
3955 if (priv
->cfg
->ops
->lib
->set_channel_switch(priv
,
3957 priv
->switch_rxon
.switch_in_progress
= false;
3961 mutex_unlock(&priv
->mutex
);
3963 if (!priv
->switch_rxon
.switch_in_progress
)
3964 ieee80211_chswitch_done(ctx
->vif
, false);
3965 IWL_DEBUG_MAC80211(priv
, "leave\n");
3968 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
3969 unsigned int changed_flags
,
3970 unsigned int *total_flags
,
3973 struct iwl_priv
*priv
= hw
->priv
;
3974 __le32 filter_or
= 0, filter_nand
= 0;
3975 struct iwl_rxon_context
*ctx
;
3977 #define CHK(test, flag) do { \
3978 if (*total_flags & (test)) \
3979 filter_or |= (flag); \
3981 filter_nand |= (flag); \
3984 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
3985 changed_flags
, *total_flags
);
3987 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
3988 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
);
3989 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
3993 mutex_lock(&priv
->mutex
);
3995 for_each_context(priv
, ctx
) {
3996 ctx
->staging
.filter_flags
&= ~filter_nand
;
3997 ctx
->staging
.filter_flags
|= filter_or
;
3998 iwlcore_commit_rxon(priv
, ctx
);
4001 mutex_unlock(&priv
->mutex
);
4004 * Receiving all multicast frames is always enabled by the
4005 * default flags setup in iwl_connection_init_rx_config()
4006 * since we currently do not support programming multicast
4007 * filters into the device.
4009 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
4010 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
4013 static void iwl_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
4015 struct iwl_priv
*priv
= hw
->priv
;
4017 mutex_lock(&priv
->mutex
);
4018 IWL_DEBUG_MAC80211(priv
, "enter\n");
4020 /* do not support "flush" */
4021 if (!priv
->cfg
->ops
->lib
->txfifo_flush
)
4024 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4025 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
4028 if (iwl_is_rfkill(priv
)) {
4029 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
4034 * mac80211 will not push any more frames for transmit
4035 * until the flush is completed
4038 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
4039 if (priv
->cfg
->ops
->lib
->txfifo_flush(priv
, IWL_DROP_ALL
)) {
4040 IWL_ERR(priv
, "flush request fail\n");
4044 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
4045 iwlagn_wait_tx_queue_empty(priv
);
4047 mutex_unlock(&priv
->mutex
);
4048 IWL_DEBUG_MAC80211(priv
, "leave\n");
4051 /*****************************************************************************
4053 * driver setup and teardown
4055 *****************************************************************************/
4057 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
4059 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
4061 init_waitqueue_head(&priv
->wait_command_queue
);
4063 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
4064 INIT_WORK(&priv
->rx_replenish
, iwl_bg_rx_replenish
);
4065 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
4066 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
4067 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
4068 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
4069 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
4070 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl_bg_init_alive_start
);
4071 INIT_DELAYED_WORK(&priv
->alive_start
, iwl_bg_alive_start
);
4073 iwl_setup_scan_deferred_work(priv
);
4075 if (priv
->cfg
->ops
->lib
->setup_deferred_work
)
4076 priv
->cfg
->ops
->lib
->setup_deferred_work(priv
);
4078 init_timer(&priv
->statistics_periodic
);
4079 priv
->statistics_periodic
.data
= (unsigned long)priv
;
4080 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
4082 init_timer(&priv
->ucode_trace
);
4083 priv
->ucode_trace
.data
= (unsigned long)priv
;
4084 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
4086 if (priv
->cfg
->ops
->lib
->recover_from_tx_stall
) {
4087 init_timer(&priv
->monitor_recover
);
4088 priv
->monitor_recover
.data
= (unsigned long)priv
;
4089 priv
->monitor_recover
.function
=
4090 priv
->cfg
->ops
->lib
->recover_from_tx_stall
;
4093 if (!priv
->cfg
->base_params
->use_isr_legacy
)
4094 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
4095 iwl_irq_tasklet
, (unsigned long)priv
);
4097 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
4098 iwl_irq_tasklet_legacy
, (unsigned long)priv
);
4101 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
4103 if (priv
->cfg
->ops
->lib
->cancel_deferred_work
)
4104 priv
->cfg
->ops
->lib
->cancel_deferred_work(priv
);
4106 cancel_delayed_work_sync(&priv
->init_alive_start
);
4107 cancel_delayed_work(&priv
->alive_start
);
4108 cancel_work_sync(&priv
->run_time_calib_work
);
4109 cancel_work_sync(&priv
->beacon_update
);
4111 iwl_cancel_scan_deferred_work(priv
);
4113 cancel_work_sync(&priv
->bt_full_concurrency
);
4114 cancel_work_sync(&priv
->bt_runtime_config
);
4116 del_timer_sync(&priv
->statistics_periodic
);
4117 del_timer_sync(&priv
->ucode_trace
);
4120 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
4121 struct ieee80211_rate
*rates
)
4125 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
4126 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
4127 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4128 rates
[i
].hw_value_short
= i
;
4130 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
4132 * If CCK != 1M then set short preamble rate flag.
4135 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
4136 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4141 static int iwl_init_drv(struct iwl_priv
*priv
)
4145 priv
->ibss_beacon
= NULL
;
4147 spin_lock_init(&priv
->sta_lock
);
4148 spin_lock_init(&priv
->hcmd_lock
);
4150 INIT_LIST_HEAD(&priv
->free_frames
);
4152 mutex_init(&priv
->mutex
);
4153 mutex_init(&priv
->sync_cmd_mutex
);
4155 priv
->ieee_channels
= NULL
;
4156 priv
->ieee_rates
= NULL
;
4157 priv
->band
= IEEE80211_BAND_2GHZ
;
4159 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
4160 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
4161 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
4162 priv
->_agn
.agg_tids_count
= 0;
4164 /* initialize force reset */
4165 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
4166 IWL_DELAY_NEXT_FORCE_RF_RESET
;
4167 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
4168 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
4170 /* Choose which receivers/antennas to use */
4171 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
4172 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
,
4173 &priv
->contexts
[IWL_RXON_CTX_BSS
]);
4175 iwl_init_scan_params(priv
);
4178 if (priv
->cfg
->bt_params
&&
4179 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
4180 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
4181 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
4182 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
4183 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
4184 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
4185 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
4186 priv
->dynamic_agg_thresh
= BT_AGG_THRESHOLD_DEF
;
4189 /* Set the tx_power_user_lmt to the lowest power level
4190 * this value will get overwritten by channel max power avg
4192 priv
->tx_power_user_lmt
= IWLAGN_TX_POWER_TARGET_POWER_MIN
;
4194 ret
= iwl_init_channel_map(priv
);
4196 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
4200 ret
= iwlcore_init_geos(priv
);
4202 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
4203 goto err_free_channel_map
;
4205 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
4209 err_free_channel_map
:
4210 iwl_free_channel_map(priv
);
4215 static void iwl_uninit_drv(struct iwl_priv
*priv
)
4217 iwl_calib_free_results(priv
);
4218 iwlcore_free_geos(priv
);
4219 iwl_free_channel_map(priv
);
4220 kfree(priv
->scan_cmd
);
4223 static struct ieee80211_ops iwl_hw_ops
= {
4225 .start
= iwl_mac_start
,
4226 .stop
= iwl_mac_stop
,
4227 .add_interface
= iwl_mac_add_interface
,
4228 .remove_interface
= iwl_mac_remove_interface
,
4229 .config
= iwl_mac_config
,
4230 .configure_filter
= iwlagn_configure_filter
,
4231 .set_key
= iwl_mac_set_key
,
4232 .update_tkip_key
= iwl_mac_update_tkip_key
,
4233 .conf_tx
= iwl_mac_conf_tx
,
4234 .reset_tsf
= iwl_mac_reset_tsf
,
4235 .bss_info_changed
= iwl_bss_info_changed
,
4236 .ampdu_action
= iwl_mac_ampdu_action
,
4237 .hw_scan
= iwl_mac_hw_scan
,
4238 .sta_notify
= iwl_mac_sta_notify
,
4239 .sta_add
= iwlagn_mac_sta_add
,
4240 .sta_remove
= iwl_mac_sta_remove
,
4241 .channel_switch
= iwl_mac_channel_switch
,
4242 .flush
= iwl_mac_flush
,
4243 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
4246 static void iwl_hw_detect(struct iwl_priv
*priv
)
4248 priv
->hw_rev
= _iwl_read32(priv
, CSR_HW_REV
);
4249 priv
->hw_wa_rev
= _iwl_read32(priv
, CSR_HW_REV_WA_REG
);
4250 pci_read_config_byte(priv
->pci_dev
, PCI_REVISION_ID
, &priv
->rev_id
);
4251 IWL_DEBUG_INFO(priv
, "HW Revision ID = 0x%X\n", priv
->rev_id
);
4254 static int iwl_set_hw_params(struct iwl_priv
*priv
)
4256 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
4257 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
4258 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
4259 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
4261 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
4263 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
4265 if (priv
->cfg
->mod_params
->disable_11n
)
4266 priv
->cfg
->sku
&= ~IWL_SKU_N
;
4268 /* Device-specific setup */
4269 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
4272 static const u8 iwlagn_bss_ac_to_fifo
[] = {
4279 static const u8 iwlagn_bss_ac_to_queue
[] = {
4283 static const u8 iwlagn_pan_ac_to_fifo
[] = {
4284 IWL_TX_FIFO_VO_IPAN
,
4285 IWL_TX_FIFO_VI_IPAN
,
4286 IWL_TX_FIFO_BE_IPAN
,
4287 IWL_TX_FIFO_BK_IPAN
,
4290 static const u8 iwlagn_pan_ac_to_queue
[] = {
4294 static int iwl_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
4297 struct iwl_priv
*priv
;
4298 struct ieee80211_hw
*hw
;
4299 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
4300 unsigned long flags
;
4301 u16 pci_cmd
, num_mac
;
4303 /************************
4304 * 1. Allocating HW data
4305 ************************/
4307 /* Disabling hardware scan means that mac80211 will perform scans
4308 * "the hard way", rather than using device's scan. */
4309 if (cfg
->mod_params
->disable_hw_scan
) {
4310 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
4311 "sw scan support is deprecated\n");
4312 iwl_hw_ops
.hw_scan
= NULL
;
4315 hw
= iwl_alloc_all(cfg
, &iwl_hw_ops
);
4321 /* At this point both hw and priv are allocated. */
4324 * The default context is always valid,
4325 * more may be discovered when firmware
4328 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
4330 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
4331 priv
->contexts
[i
].ctxid
= i
;
4333 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
4334 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
4335 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
4336 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
4337 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
4338 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
4339 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
4340 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
4341 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
4342 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
4343 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
4344 BIT(NL80211_IFTYPE_ADHOC
);
4345 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
4346 BIT(NL80211_IFTYPE_STATION
);
4347 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
4348 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
4349 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
4351 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
4352 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
= REPLY_WIPAN_RXON_TIMING
;
4353 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
= REPLY_WIPAN_RXON_ASSOC
;
4354 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
4355 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
4356 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
4357 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
4358 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
4359 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
4360 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
4361 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
4362 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
4363 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
4364 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
4365 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
4366 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
4368 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
4370 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
4372 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
4374 priv
->pci_dev
= pdev
;
4375 priv
->inta_mask
= CSR_INI_SET_MASK
;
4377 /* is antenna coupling more than 35dB ? */
4378 priv
->bt_ant_couple_ok
=
4379 (iwlagn_ant_coupling
> IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
4382 /* enable/disable bt channel announcement */
4383 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
4385 if (iwl_alloc_traffic_mem(priv
))
4386 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
4388 /**************************
4389 * 2. Initializing PCI bus
4390 **************************/
4391 pci_disable_link_state(pdev
, PCIE_LINK_STATE_L0S
| PCIE_LINK_STATE_L1
|
4392 PCIE_LINK_STATE_CLKPM
);
4394 if (pci_enable_device(pdev
)) {
4396 goto out_ieee80211_free_hw
;
4399 pci_set_master(pdev
);
4401 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(36));
4403 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(36));
4405 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
4407 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
4408 /* both attempts failed: */
4410 IWL_WARN(priv
, "No suitable DMA available.\n");
4411 goto out_pci_disable_device
;
4415 err
= pci_request_regions(pdev
, DRV_NAME
);
4417 goto out_pci_disable_device
;
4419 pci_set_drvdata(pdev
, priv
);
4422 /***********************
4423 * 3. Read REV register
4424 ***********************/
4425 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
4426 if (!priv
->hw_base
) {
4428 goto out_pci_release_regions
;
4431 IWL_DEBUG_INFO(priv
, "pci_resource_len = 0x%08llx\n",
4432 (unsigned long long) pci_resource_len(pdev
, 0));
4433 IWL_DEBUG_INFO(priv
, "pci_resource_base = %p\n", priv
->hw_base
);
4435 /* these spin locks will be used in apm_ops.init and EEPROM access
4436 * we should init now
4438 spin_lock_init(&priv
->reg_lock
);
4439 spin_lock_init(&priv
->lock
);
4442 * stop and reset the on-board processor just in case it is in a
4443 * strange state ... like being left stranded by a primary kernel
4444 * and this is now the kdump kernel trying to start up
4446 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
4448 iwl_hw_detect(priv
);
4449 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
4450 priv
->cfg
->name
, priv
->hw_rev
);
4452 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4453 * PCI Tx retries from interfering with C3 CPU state */
4454 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
4456 iwl_prepare_card_hw(priv
);
4457 if (!priv
->hw_ready
) {
4458 IWL_WARN(priv
, "Failed, HW not ready\n");
4465 /* Read the EEPROM */
4466 err
= iwl_eeprom_init(priv
);
4468 IWL_ERR(priv
, "Unable to init EEPROM\n");
4471 err
= iwl_eeprom_check_version(priv
);
4473 goto out_free_eeprom
;
4475 /* extract MAC Address */
4476 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
4477 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
4478 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
4479 priv
->hw
->wiphy
->n_addresses
= 1;
4480 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
4482 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
4484 priv
->addresses
[1].addr
[5]++;
4485 priv
->hw
->wiphy
->n_addresses
++;
4488 /************************
4489 * 5. Setup HW constants
4490 ************************/
4491 if (iwl_set_hw_params(priv
)) {
4492 IWL_ERR(priv
, "failed to set hw parameters\n");
4493 goto out_free_eeprom
;
4496 /*******************
4498 *******************/
4500 err
= iwl_init_drv(priv
);
4502 goto out_free_eeprom
;
4503 /* At this point both hw and priv are initialized. */
4505 /********************
4507 ********************/
4508 spin_lock_irqsave(&priv
->lock
, flags
);
4509 iwl_disable_interrupts(priv
);
4510 spin_unlock_irqrestore(&priv
->lock
, flags
);
4512 pci_enable_msi(priv
->pci_dev
);
4514 iwl_alloc_isr_ict(priv
);
4515 err
= request_irq(priv
->pci_dev
->irq
, priv
->cfg
->ops
->lib
->isr
,
4516 IRQF_SHARED
, DRV_NAME
, priv
);
4518 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
4519 goto out_disable_msi
;
4522 iwl_setup_deferred_work(priv
);
4523 iwl_setup_rx_handlers(priv
);
4525 /*********************************************
4526 * 8. Enable interrupts and read RFKILL state
4527 *********************************************/
4529 /* enable interrupts if needed: hw bug w/a */
4530 pci_read_config_word(priv
->pci_dev
, PCI_COMMAND
, &pci_cmd
);
4531 if (pci_cmd
& PCI_COMMAND_INTX_DISABLE
) {
4532 pci_cmd
&= ~PCI_COMMAND_INTX_DISABLE
;
4533 pci_write_config_word(priv
->pci_dev
, PCI_COMMAND
, pci_cmd
);
4536 iwl_enable_interrupts(priv
);
4538 /* If platform's RF_KILL switch is NOT set to KILL */
4539 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
4540 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4542 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4544 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
4545 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
4547 iwl_power_initialize(priv
);
4548 iwl_tt_initialize(priv
);
4550 init_completion(&priv
->_agn
.firmware_loading_complete
);
4552 err
= iwl_request_firmware(priv
, true);
4554 goto out_destroy_workqueue
;
4558 out_destroy_workqueue
:
4559 destroy_workqueue(priv
->workqueue
);
4560 priv
->workqueue
= NULL
;
4561 free_irq(priv
->pci_dev
->irq
, priv
);
4562 iwl_free_isr_ict(priv
);
4564 pci_disable_msi(priv
->pci_dev
);
4565 iwl_uninit_drv(priv
);
4567 iwl_eeprom_free(priv
);
4569 pci_iounmap(pdev
, priv
->hw_base
);
4570 out_pci_release_regions
:
4571 pci_set_drvdata(pdev
, NULL
);
4572 pci_release_regions(pdev
);
4573 out_pci_disable_device
:
4574 pci_disable_device(pdev
);
4575 out_ieee80211_free_hw
:
4576 iwl_free_traffic_mem(priv
);
4577 ieee80211_free_hw(priv
->hw
);
4582 static void __devexit
iwl_pci_remove(struct pci_dev
*pdev
)
4584 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
4585 unsigned long flags
;
4590 wait_for_completion(&priv
->_agn
.firmware_loading_complete
);
4592 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
4594 iwl_dbgfs_unregister(priv
);
4595 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
4597 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
4598 * to be called and iwl_down since we are removing the device
4599 * we need to set STATUS_EXIT_PENDING bit.
4601 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
4602 if (priv
->mac80211_registered
) {
4603 ieee80211_unregister_hw(priv
->hw
);
4604 priv
->mac80211_registered
= 0;
4610 * Make sure device is reset to low power before unloading driver.
4611 * This may be redundant with iwl_down(), but there are paths to
4612 * run iwl_down() without calling apm_ops.stop(), and there are
4613 * paths to avoid running iwl_down() at all before leaving driver.
4614 * This (inexpensive) call *makes sure* device is reset.
4616 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
4620 /* make sure we flush any pending irq or
4621 * tasklet for the driver
4623 spin_lock_irqsave(&priv
->lock
, flags
);
4624 iwl_disable_interrupts(priv
);
4625 spin_unlock_irqrestore(&priv
->lock
, flags
);
4627 iwl_synchronize_irq(priv
);
4629 iwl_dealloc_ucode_pci(priv
);
4632 iwlagn_rx_queue_free(priv
, &priv
->rxq
);
4633 iwlagn_hw_txq_ctx_free(priv
);
4635 iwl_eeprom_free(priv
);
4638 /*netif_stop_queue(dev); */
4639 flush_workqueue(priv
->workqueue
);
4641 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
4642 * priv->workqueue... so we can't take down the workqueue
4644 destroy_workqueue(priv
->workqueue
);
4645 priv
->workqueue
= NULL
;
4646 iwl_free_traffic_mem(priv
);
4648 free_irq(priv
->pci_dev
->irq
, priv
);
4649 pci_disable_msi(priv
->pci_dev
);
4650 pci_iounmap(pdev
, priv
->hw_base
);
4651 pci_release_regions(pdev
);
4652 pci_disable_device(pdev
);
4653 pci_set_drvdata(pdev
, NULL
);
4655 iwl_uninit_drv(priv
);
4657 iwl_free_isr_ict(priv
);
4659 if (priv
->ibss_beacon
)
4660 dev_kfree_skb(priv
->ibss_beacon
);
4662 ieee80211_free_hw(priv
->hw
);
4666 /*****************************************************************************
4668 * driver and module entry point
4670 *****************************************************************************/
4672 /* Hardware specific file defines the PCI IDs table for that hardware module */
4673 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids
) = {
4674 #ifdef CONFIG_IWL4965
4675 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
4676 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
4677 #endif /* CONFIG_IWL4965 */
4678 #ifdef CONFIG_IWL5000
4679 /* 5100 Series WiFi */
4680 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg
)}, /* Mini Card */
4681 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg
)}, /* Half Mini Card */
4682 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg
)}, /* Mini Card */
4683 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg
)}, /* Half Mini Card */
4684 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg
)}, /* Mini Card */
4685 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg
)}, /* Half Mini Card */
4686 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg
)}, /* Mini Card */
4687 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg
)}, /* Half Mini Card */
4688 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg
)}, /* Mini Card */
4689 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg
)}, /* Half Mini Card */
4690 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg
)}, /* Mini Card */
4691 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg
)}, /* Half Mini Card */
4692 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg
)}, /* Mini Card */
4693 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg
)}, /* Half Mini Card */
4694 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg
)}, /* Mini Card */
4695 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg
)}, /* Half Mini Card */
4696 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg
)}, /* Mini Card */
4697 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg
)}, /* Half Mini Card */
4698 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg
)}, /* Mini Card */
4699 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg
)}, /* Half Mini Card */
4700 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg
)}, /* Mini Card */
4701 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg
)}, /* Half Mini Card */
4702 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg
)}, /* Mini Card */
4703 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg
)}, /* Half Mini Card */
4705 /* 5300 Series WiFi */
4706 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg
)}, /* Mini Card */
4707 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg
)}, /* Half Mini Card */
4708 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg
)}, /* Mini Card */
4709 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg
)}, /* Half Mini Card */
4710 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg
)}, /* Mini Card */
4711 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg
)}, /* Half Mini Card */
4712 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg
)}, /* Mini Card */
4713 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg
)}, /* Half Mini Card */
4714 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg
)}, /* Mini Card */
4715 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg
)}, /* Half Mini Card */
4716 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg
)}, /* Mini Card */
4717 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg
)}, /* Half Mini Card */
4719 /* 5350 Series WiFi/WiMax */
4720 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg
)}, /* Mini Card */
4721 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg
)}, /* Mini Card */
4722 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg
)}, /* Mini Card */
4724 /* 5150 Series Wifi/WiMax */
4725 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg
)}, /* Mini Card */
4726 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg
)}, /* Half Mini Card */
4727 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg
)}, /* Mini Card */
4728 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg
)}, /* Half Mini Card */
4729 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg
)}, /* Mini Card */
4730 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg
)}, /* Half Mini Card */
4732 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg
)}, /* Mini Card */
4733 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg
)}, /* Half Mini Card */
4734 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg
)}, /* Mini Card */
4735 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg
)}, /* Half Mini Card */
4738 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg
)},
4739 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg
)},
4740 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg
)},
4741 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg
)},
4742 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg
)},
4743 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg
)},
4744 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg
)},
4745 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg
)},
4746 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg
)},
4747 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg
)},
4749 /* 6x00 Series Gen2a */
4750 {IWL_PCI_DEVICE(0x0082, 0x1201, iwl6000g2a_2agn_cfg
)},
4751 {IWL_PCI_DEVICE(0x0085, 0x1211, iwl6000g2a_2agn_cfg
)},
4752 {IWL_PCI_DEVICE(0x0082, 0x1221, iwl6000g2a_2agn_cfg
)},
4753 {IWL_PCI_DEVICE(0x0082, 0x1206, iwl6000g2a_2abg_cfg
)},
4754 {IWL_PCI_DEVICE(0x0085, 0x1216, iwl6000g2a_2abg_cfg
)},
4755 {IWL_PCI_DEVICE(0x0082, 0x1226, iwl6000g2a_2abg_cfg
)},
4756 {IWL_PCI_DEVICE(0x0082, 0x1207, iwl6000g2a_2bg_cfg
)},
4757 {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6000g2a_2agn_cfg
)},
4758 {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6000g2a_2abg_cfg
)},
4759 {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6000g2a_2bg_cfg
)},
4760 {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6000g2a_2agn_cfg
)},
4761 {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6000g2a_2abg_cfg
)},
4762 {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6000g2a_2agn_cfg
)},
4763 {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6000g2a_2abg_cfg
)},
4765 /* 6x00 Series Gen2b */
4766 {IWL_PCI_DEVICE(0x008F, 0x5105, iwl6000g2b_bgn_cfg
)},
4767 {IWL_PCI_DEVICE(0x0090, 0x5115, iwl6000g2b_bgn_cfg
)},
4768 {IWL_PCI_DEVICE(0x008F, 0x5125, iwl6000g2b_bgn_cfg
)},
4769 {IWL_PCI_DEVICE(0x008F, 0x5107, iwl6000g2b_bg_cfg
)},
4770 {IWL_PCI_DEVICE(0x008F, 0x5201, iwl6000g2b_2agn_cfg
)},
4771 {IWL_PCI_DEVICE(0x0090, 0x5211, iwl6000g2b_2agn_cfg
)},
4772 {IWL_PCI_DEVICE(0x008F, 0x5221, iwl6000g2b_2agn_cfg
)},
4773 {IWL_PCI_DEVICE(0x008F, 0x5206, iwl6000g2b_2abg_cfg
)},
4774 {IWL_PCI_DEVICE(0x0090, 0x5216, iwl6000g2b_2abg_cfg
)},
4775 {IWL_PCI_DEVICE(0x008F, 0x5226, iwl6000g2b_2abg_cfg
)},
4776 {IWL_PCI_DEVICE(0x008F, 0x5207, iwl6000g2b_2bg_cfg
)},
4777 {IWL_PCI_DEVICE(0x008A, 0x5301, iwl6000g2b_bgn_cfg
)},
4778 {IWL_PCI_DEVICE(0x008A, 0x5305, iwl6000g2b_bgn_cfg
)},
4779 {IWL_PCI_DEVICE(0x008A, 0x5307, iwl6000g2b_bg_cfg
)},
4780 {IWL_PCI_DEVICE(0x008A, 0x5321, iwl6000g2b_bgn_cfg
)},
4781 {IWL_PCI_DEVICE(0x008A, 0x5325, iwl6000g2b_bgn_cfg
)},
4782 {IWL_PCI_DEVICE(0x008B, 0x5311, iwl6000g2b_bgn_cfg
)},
4783 {IWL_PCI_DEVICE(0x008B, 0x5315, iwl6000g2b_bgn_cfg
)},
4784 {IWL_PCI_DEVICE(0x0090, 0x5211, iwl6000g2b_2agn_cfg
)},
4785 {IWL_PCI_DEVICE(0x0090, 0x5215, iwl6000g2b_2bgn_cfg
)},
4786 {IWL_PCI_DEVICE(0x0090, 0x5216, iwl6000g2b_2abg_cfg
)},
4787 {IWL_PCI_DEVICE(0x0091, 0x5201, iwl6000g2b_2agn_cfg
)},
4788 {IWL_PCI_DEVICE(0x0091, 0x5205, iwl6000g2b_2bgn_cfg
)},
4789 {IWL_PCI_DEVICE(0x0091, 0x5206, iwl6000g2b_2abg_cfg
)},
4790 {IWL_PCI_DEVICE(0x0091, 0x5207, iwl6000g2b_2bg_cfg
)},
4791 {IWL_PCI_DEVICE(0x0091, 0x5221, iwl6000g2b_2agn_cfg
)},
4792 {IWL_PCI_DEVICE(0x0091, 0x5225, iwl6000g2b_2bgn_cfg
)},
4793 {IWL_PCI_DEVICE(0x0091, 0x5226, iwl6000g2b_2abg_cfg
)},
4795 /* 6x50 WiFi/WiMax Series */
4796 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg
)},
4797 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg
)},
4798 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg
)},
4799 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg
)},
4800 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg
)},
4801 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg
)},
4803 /* 6x50 WiFi/WiMax Series Gen2 */
4804 {IWL_PCI_DEVICE(0x0885, 0x1305, iwl6050g2_bgn_cfg
)},
4805 {IWL_PCI_DEVICE(0x0885, 0x1306, iwl6050g2_bgn_cfg
)},
4806 {IWL_PCI_DEVICE(0x0885, 0x1325, iwl6050g2_bgn_cfg
)},
4807 {IWL_PCI_DEVICE(0x0885, 0x1326, iwl6050g2_bgn_cfg
)},
4808 {IWL_PCI_DEVICE(0x0886, 0x1315, iwl6050g2_bgn_cfg
)},
4809 {IWL_PCI_DEVICE(0x0886, 0x1316, iwl6050g2_bgn_cfg
)},
4811 /* 1000 Series WiFi */
4812 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg
)},
4813 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg
)},
4814 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg
)},
4815 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg
)},
4816 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg
)},
4817 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg
)},
4818 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg
)},
4819 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg
)},
4820 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg
)},
4821 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg
)},
4822 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg
)},
4823 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg
)},
4825 /* 100 Series WiFi */
4826 {IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg
)},
4827 {IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg
)},
4828 {IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg
)},
4829 {IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg
)},
4830 {IWL_PCI_DEVICE(0x08AE, 0x1017, iwl100_bg_cfg
)},
4832 /* 130 Series WiFi */
4833 {IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg
)},
4834 {IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg
)},
4835 {IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg
)},
4836 {IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg
)},
4837 {IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg
)},
4838 {IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg
)},
4840 #endif /* CONFIG_IWL5000 */
4844 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
4846 static struct pci_driver iwl_driver
= {
4848 .id_table
= iwl_hw_card_ids
,
4849 .probe
= iwl_pci_probe
,
4850 .remove
= __devexit_p(iwl_pci_remove
),
4852 .suspend
= iwl_pci_suspend
,
4853 .resume
= iwl_pci_resume
,
4857 static int __init
iwl_init(void)
4861 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
4862 pr_info(DRV_COPYRIGHT
"\n");
4864 ret
= iwlagn_rate_control_register();
4866 pr_err("Unable to register rate control algorithm: %d\n", ret
);
4870 ret
= pci_register_driver(&iwl_driver
);
4872 pr_err("Unable to initialize PCI module\n");
4873 goto error_register
;
4879 iwlagn_rate_control_unregister();
4883 static void __exit
iwl_exit(void)
4885 pci_unregister_driver(&iwl_driver
);
4886 iwlagn_rate_control_unregister();
4889 module_exit(iwl_exit
);
4890 module_init(iwl_init
);
4892 #ifdef CONFIG_IWLWIFI_DEBUG
4893 module_param_named(debug50
, iwl_debug_level
, uint
, S_IRUGO
);
4894 MODULE_PARM_DESC(debug50
, "50XX debug output mask (deprecated)");
4895 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
4896 MODULE_PARM_DESC(debug
, "debug output mask");
4899 module_param_named(swcrypto50
, iwlagn_mod_params
.sw_crypto
, bool, S_IRUGO
);
4900 MODULE_PARM_DESC(swcrypto50
,
4901 "using crypto in software (default 0 [hardware]) (deprecated)");
4902 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
4903 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
4904 module_param_named(queues_num50
,
4905 iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
4906 MODULE_PARM_DESC(queues_num50
,
4907 "number of hw queues in 50xx series (deprecated)");
4908 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
4909 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
4910 module_param_named(11n_disable50
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
4911 MODULE_PARM_DESC(11n_disable50
, "disable 50XX 11n functionality (deprecated)");
4912 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
4913 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
4914 module_param_named(amsdu_size_8K50
, iwlagn_mod_params
.amsdu_size_8K
,
4916 MODULE_PARM_DESC(amsdu_size_8K50
,
4917 "enable 8K amsdu size in 50XX series (deprecated)");
4918 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
4920 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
4921 module_param_named(fw_restart50
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
4922 MODULE_PARM_DESC(fw_restart50
,
4923 "restart firmware in case of error (deprecated)");
4924 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
4925 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
4927 disable_hw_scan
, iwlagn_mod_params
.disable_hw_scan
, int, S_IRUGO
);
4928 MODULE_PARM_DESC(disable_hw_scan
,
4929 "disable hardware scanning (default 0) (deprecated)");
4931 module_param_named(ucode_alternative
, iwlagn_wanted_ucode_alternative
, int,
4933 MODULE_PARM_DESC(ucode_alternative
,
4934 "specify ucode alternative to use from ucode file");
4936 module_param_named(antenna_coupling
, iwlagn_ant_coupling
, int, S_IRUGO
);
4937 MODULE_PARM_DESC(antenna_coupling
,
4938 "specify antenna coupling in dB (defualt: 0 dB)");
4940 module_param_named(bt_ch_announce
, iwlagn_bt_ch_announce
, bool, S_IRUGO
);
4941 MODULE_PARM_DESC(bt_ch_announce
,
4942 "Enable BT channel announcement mode (default: enable)");