1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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 "iwl4965"
54 #include "iwl-eeprom.h"
58 #include "iwl-helpers.h"
60 #include "iwl-4965-calib.h"
62 #include "iwl-4965-led.h"
65 /******************************************************************************
69 ******************************************************************************/
72 * module name, copyright, version, etc.
74 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi 4965 driver for Linux"
76 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
82 #define DRV_VERSION IWLWIFI_VERSION VD
85 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
86 MODULE_VERSION(DRV_VERSION
);
87 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
88 MODULE_LICENSE("GPL");
89 MODULE_ALIAS("iwl4965");
91 void iwl4965_update_chain_flags(struct iwl_priv
*priv
)
93 struct iwl_rxon_context
*ctx
;
95 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
) {
96 for_each_context(priv
, ctx
) {
97 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
98 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
99 iwl_legacy_commit_rxon(priv
, ctx
);
104 static void iwl4965_clear_free_frames(struct iwl_priv
*priv
)
106 struct list_head
*element
;
108 IWL_DEBUG_INFO(priv
, "%d frames on pre-allocated heap on clear.\n",
111 while (!list_empty(&priv
->free_frames
)) {
112 element
= priv
->free_frames
.next
;
114 kfree(list_entry(element
, struct iwl_frame
, list
));
115 priv
->frames_count
--;
118 if (priv
->frames_count
) {
119 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
121 priv
->frames_count
= 0;
125 static struct iwl_frame
*iwl4965_get_free_frame(struct iwl_priv
*priv
)
127 struct iwl_frame
*frame
;
128 struct list_head
*element
;
129 if (list_empty(&priv
->free_frames
)) {
130 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
132 IWL_ERR(priv
, "Could not allocate frame!\n");
136 priv
->frames_count
++;
140 element
= priv
->free_frames
.next
;
142 return list_entry(element
, struct iwl_frame
, list
);
145 static void iwl4965_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
147 memset(frame
, 0, sizeof(*frame
));
148 list_add(&frame
->list
, &priv
->free_frames
);
151 static u32
iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
152 struct ieee80211_hdr
*hdr
,
155 lockdep_assert_held(&priv
->mutex
);
157 if (!priv
->beacon_skb
)
160 if (priv
->beacon_skb
->len
> left
)
163 memcpy(hdr
, priv
->beacon_skb
->data
, priv
->beacon_skb
->len
);
165 return priv
->beacon_skb
->len
;
168 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
169 static void iwl4965_set_beacon_tim(struct iwl_priv
*priv
,
170 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
171 u8
*beacon
, u32 frame_size
)
174 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
177 * The index is relative to frame start but we start looking at the
178 * variable-length part of the beacon.
180 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
182 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
183 while ((tim_idx
< (frame_size
- 2)) &&
184 (beacon
[tim_idx
] != WLAN_EID_TIM
))
185 tim_idx
+= beacon
[tim_idx
+1] + 2;
187 /* If TIM field was found, set variables */
188 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
189 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
190 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
192 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
195 static unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv
*priv
,
196 struct iwl_frame
*frame
)
198 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
203 * We have to set up the TX command, the TX Beacon command, and the
207 lockdep_assert_held(&priv
->mutex
);
209 if (!priv
->beacon_ctx
) {
210 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
214 /* Initialize memory */
215 tx_beacon_cmd
= &frame
->u
.beacon
;
216 memset(tx_beacon_cmd
, 0, sizeof(*tx_beacon_cmd
));
218 /* Set up TX beacon contents */
219 frame_size
= iwl4965_fill_beacon_frame(priv
, tx_beacon_cmd
->frame
,
220 sizeof(frame
->u
) - sizeof(*tx_beacon_cmd
));
221 if (WARN_ON_ONCE(frame_size
> MAX_MPDU_SIZE
))
226 /* Set up TX command fields */
227 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
228 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
229 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
230 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
231 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
233 /* Set up TX beacon command fields */
234 iwl4965_set_beacon_tim(priv
, tx_beacon_cmd
, (u8
*)tx_beacon_cmd
->frame
,
237 /* Set up packet rate and flags */
238 rate
= iwl_legacy_get_lowest_plcp(priv
, priv
->beacon_ctx
);
239 priv
->mgmt_tx_ant
= iwl4965_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
240 priv
->hw_params
.valid_tx_ant
);
241 rate_flags
= iwl4965_ant_idx_to_flags(priv
->mgmt_tx_ant
);
242 if ((rate
>= IWL_FIRST_CCK_RATE
) && (rate
<= IWL_LAST_CCK_RATE
))
243 rate_flags
|= RATE_MCS_CCK_MSK
;
244 tx_beacon_cmd
->tx
.rate_n_flags
= iwl4965_hw_set_rate_n_flags(rate
,
247 return sizeof(*tx_beacon_cmd
) + frame_size
;
250 int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
252 struct iwl_frame
*frame
;
253 unsigned int frame_size
;
256 frame
= iwl4965_get_free_frame(priv
);
258 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
263 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
);
265 IWL_ERR(priv
, "Error configuring the beacon command\n");
266 iwl4965_free_frame(priv
, frame
);
270 rc
= iwl_legacy_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
273 iwl4965_free_frame(priv
, frame
);
278 static inline dma_addr_t
iwl4965_tfd_tb_get_addr(struct iwl_tfd
*tfd
, u8 idx
)
280 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
282 dma_addr_t addr
= get_unaligned_le32(&tb
->lo
);
283 if (sizeof(dma_addr_t
) > sizeof(u32
))
285 ((dma_addr_t
)(le16_to_cpu(tb
->hi_n_len
) & 0xF) << 16) << 16;
290 static inline u16
iwl4965_tfd_tb_get_len(struct iwl_tfd
*tfd
, u8 idx
)
292 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
294 return le16_to_cpu(tb
->hi_n_len
) >> 4;
297 static inline void iwl4965_tfd_set_tb(struct iwl_tfd
*tfd
, u8 idx
,
298 dma_addr_t addr
, u16 len
)
300 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
301 u16 hi_n_len
= len
<< 4;
303 put_unaligned_le32(addr
, &tb
->lo
);
304 if (sizeof(dma_addr_t
) > sizeof(u32
))
305 hi_n_len
|= ((addr
>> 16) >> 16) & 0xF;
307 tb
->hi_n_len
= cpu_to_le16(hi_n_len
);
309 tfd
->num_tbs
= idx
+ 1;
312 static inline u8
iwl4965_tfd_get_num_tbs(struct iwl_tfd
*tfd
)
314 return tfd
->num_tbs
& 0x1f;
318 * iwl4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
319 * @priv - driver private data
322 * Does NOT advance any TFD circular buffer read/write indexes
323 * Does NOT free the TFD itself (which is within circular buffer)
325 void iwl4965_hw_txq_free_tfd(struct iwl_priv
*priv
, struct iwl_tx_queue
*txq
)
327 struct iwl_tfd
*tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
329 struct pci_dev
*dev
= priv
->pci_dev
;
330 int index
= txq
->q
.read_ptr
;
334 tfd
= &tfd_tmp
[index
];
336 /* Sanity check on number of chunks */
337 num_tbs
= iwl4965_tfd_get_num_tbs(tfd
);
339 if (num_tbs
>= IWL_NUM_OF_TBS
) {
340 IWL_ERR(priv
, "Too many chunks: %i\n", num_tbs
);
341 /* @todo issue fatal error, it is quite serious situation */
347 pci_unmap_single(dev
,
348 dma_unmap_addr(&txq
->meta
[index
], mapping
),
349 dma_unmap_len(&txq
->meta
[index
], len
),
350 PCI_DMA_BIDIRECTIONAL
);
352 /* Unmap chunks, if any. */
353 for (i
= 1; i
< num_tbs
; i
++)
354 pci_unmap_single(dev
, iwl4965_tfd_tb_get_addr(tfd
, i
),
355 iwl4965_tfd_tb_get_len(tfd
, i
),
362 skb
= txq
->txb
[txq
->q
.read_ptr
].skb
;
364 /* can be called from irqs-disabled context */
366 dev_kfree_skb_any(skb
);
367 txq
->txb
[txq
->q
.read_ptr
].skb
= NULL
;
372 int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv
*priv
,
373 struct iwl_tx_queue
*txq
,
374 dma_addr_t addr
, u16 len
,
378 struct iwl_tfd
*tfd
, *tfd_tmp
;
382 tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
383 tfd
= &tfd_tmp
[q
->write_ptr
];
386 memset(tfd
, 0, sizeof(*tfd
));
388 num_tbs
= iwl4965_tfd_get_num_tbs(tfd
);
390 /* Each TFD can point to a maximum 20 Tx buffers */
391 if (num_tbs
>= IWL_NUM_OF_TBS
) {
392 IWL_ERR(priv
, "Error can not send more than %d chunks\n",
397 BUG_ON(addr
& ~DMA_BIT_MASK(36));
398 if (unlikely(addr
& ~IWL_TX_DMA_MASK
))
399 IWL_ERR(priv
, "Unaligned address = %llx\n",
400 (unsigned long long)addr
);
402 iwl4965_tfd_set_tb(tfd
, num_tbs
, addr
, len
);
408 * Tell nic where to find circular buffer of Tx Frame Descriptors for
409 * given Tx queue, and enable the DMA channel used for that queue.
411 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
412 * channels supported in hardware.
414 int iwl4965_hw_tx_queue_init(struct iwl_priv
*priv
,
415 struct iwl_tx_queue
*txq
)
417 int txq_id
= txq
->q
.id
;
419 /* Circular buffer (TFD queue in DRAM) physical base address */
420 iwl_legacy_write_direct32(priv
, FH_MEM_CBBC_QUEUE(txq_id
),
421 txq
->q
.dma_addr
>> 8);
426 /******************************************************************************
428 * Generic RX handler implementations
430 ******************************************************************************/
431 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
432 struct iwl_rx_mem_buffer
*rxb
)
434 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
435 struct iwl_alive_resp
*palive
;
436 struct delayed_work
*pwork
;
438 palive
= &pkt
->u
.alive_frame
;
440 IWL_DEBUG_INFO(priv
, "Alive ucode status 0x%08X revision "
442 palive
->is_valid
, palive
->ver_type
,
443 palive
->ver_subtype
);
445 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
446 IWL_DEBUG_INFO(priv
, "Initialization Alive received.\n");
447 memcpy(&priv
->card_alive_init
,
449 sizeof(struct iwl_init_alive_resp
));
450 pwork
= &priv
->init_alive_start
;
452 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
453 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
454 sizeof(struct iwl_alive_resp
));
455 pwork
= &priv
->alive_start
;
458 /* We delay the ALIVE response by 5ms to
459 * give the HW RF Kill time to activate... */
460 if (palive
->is_valid
== UCODE_VALID_OK
)
461 queue_delayed_work(priv
->workqueue
, pwork
,
462 msecs_to_jiffies(5));
464 IWL_WARN(priv
, "uCode did not respond OK.\n");
468 * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
470 * This callback is provided in order to send a statistics request.
472 * This timer function is continually reset to execute within
473 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
474 * was received. We need to ensure we receive the statistics in order
475 * to update the temperature used for calibrating the TXPOWER.
477 static void iwl4965_bg_statistics_periodic(unsigned long data
)
479 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
481 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
484 /* dont send host command if rf-kill is on */
485 if (!iwl_legacy_is_ready_rf(priv
))
488 iwl_legacy_send_statistics_request(priv
, CMD_ASYNC
, false);
492 static void iwl4965_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
493 u32 start_idx
, u32 num_events
,
497 u32 ptr
; /* SRAM byte address of log data */
498 u32 ev
, time
, data
; /* event log data */
499 unsigned long reg_flags
;
502 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
504 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
506 /* Make sure device is powered up for SRAM reads */
507 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
508 if (iwl_grab_nic_access(priv
)) {
509 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
513 /* Set starting address; reads will auto-increment */
514 _iwl_legacy_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
518 * "time" is actually "data" for mode 0 (no timestamp).
519 * place event id # at far right for easier visual parsing.
521 for (i
= 0; i
< num_events
; i
++) {
522 ev
= _iwl_legacy_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
523 time
= _iwl_legacy_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
525 trace_iwlwifi_legacy_dev_ucode_cont_event(priv
,
528 data
= _iwl_legacy_read_direct32(priv
,
530 trace_iwlwifi_legacy_dev_ucode_cont_event(priv
,
534 /* Allow device to power down */
535 iwl_release_nic_access(priv
);
536 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
539 static void iwl4965_continuous_event_trace(struct iwl_priv
*priv
)
541 u32 capacity
; /* event log capacity in # entries */
542 u32 base
; /* SRAM byte address of event log header */
543 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
544 u32 num_wraps
; /* # times uCode wrapped to top of log */
545 u32 next_entry
; /* index of next entry to be written by uCode */
547 if (priv
->ucode_type
== UCODE_INIT
)
548 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
550 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
551 if (priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
552 capacity
= iwl_legacy_read_targ_mem(priv
, base
);
553 num_wraps
= iwl_legacy_read_targ_mem(priv
,
554 base
+ (2 * sizeof(u32
)));
555 mode
= iwl_legacy_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
556 next_entry
= iwl_legacy_read_targ_mem(priv
,
557 base
+ (3 * sizeof(u32
)));
561 if (num_wraps
== priv
->event_log
.num_wraps
) {
562 iwl4965_print_cont_event_trace(priv
,
563 base
, priv
->event_log
.next_entry
,
564 next_entry
- priv
->event_log
.next_entry
,
566 priv
->event_log
.non_wraps_count
++;
568 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
569 priv
->event_log
.wraps_more_count
++;
571 priv
->event_log
.wraps_once_count
++;
572 trace_iwlwifi_legacy_dev_ucode_wrap_event(priv
,
573 num_wraps
- priv
->event_log
.num_wraps
,
574 next_entry
, priv
->event_log
.next_entry
);
575 if (next_entry
< priv
->event_log
.next_entry
) {
576 iwl4965_print_cont_event_trace(priv
, base
,
577 priv
->event_log
.next_entry
,
578 capacity
- priv
->event_log
.next_entry
,
581 iwl4965_print_cont_event_trace(priv
, base
, 0,
584 iwl4965_print_cont_event_trace(priv
, base
,
585 next_entry
, capacity
- next_entry
,
588 iwl4965_print_cont_event_trace(priv
, base
, 0,
592 priv
->event_log
.num_wraps
= num_wraps
;
593 priv
->event_log
.next_entry
= next_entry
;
597 * iwl4965_bg_ucode_trace - Timer callback to log ucode event
599 * The timer is continually set to execute every
600 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
601 * this function is to perform continuous uCode event logging operation
604 static void iwl4965_bg_ucode_trace(unsigned long data
)
606 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
608 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
611 if (priv
->event_log
.ucode_trace
) {
612 iwl4965_continuous_event_trace(priv
);
613 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
614 mod_timer(&priv
->ucode_trace
,
615 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
619 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
620 struct iwl_rx_mem_buffer
*rxb
)
622 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
623 struct iwl4965_beacon_notif
*beacon
=
624 (struct iwl4965_beacon_notif
*)pkt
->u
.raw
;
625 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
626 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
628 IWL_DEBUG_RX(priv
, "beacon status %x retries %d iss %d "
629 "tsf %d %d rate %d\n",
630 le32_to_cpu(beacon
->beacon_notify_hdr
.u
.status
) & TX_STATUS_MSK
,
631 beacon
->beacon_notify_hdr
.failure_frame
,
632 le32_to_cpu(beacon
->ibss_mgr_status
),
633 le32_to_cpu(beacon
->high_tsf
),
634 le32_to_cpu(beacon
->low_tsf
), rate
);
637 priv
->ibss_manager
= le32_to_cpu(beacon
->ibss_mgr_status
);
640 static void iwl4965_perform_ct_kill_task(struct iwl_priv
*priv
)
644 IWL_DEBUG_POWER(priv
, "Stop all queues\n");
646 if (priv
->mac80211_registered
)
647 ieee80211_stop_queues(priv
->hw
);
649 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
650 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
651 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
653 spin_lock_irqsave(&priv
->reg_lock
, flags
);
654 if (!iwl_grab_nic_access(priv
))
655 iwl_release_nic_access(priv
);
656 spin_unlock_irqrestore(&priv
->reg_lock
, flags
);
659 /* Handle notification from uCode that card's power state is changing
660 * due to software, hardware, or critical temperature RFKILL */
661 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
662 struct iwl_rx_mem_buffer
*rxb
)
664 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
665 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
666 unsigned long status
= priv
->status
;
668 IWL_DEBUG_RF_KILL(priv
, "Card state received: HW:%s SW:%s CT:%s\n",
669 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
670 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
671 (flags
& CT_CARD_DISABLED
) ?
672 "Reached" : "Not reached");
674 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
677 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
678 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
680 iwl_legacy_write_direct32(priv
, HBUS_TARG_MBX_C
,
681 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
683 if (!(flags
& RXON_CARD_DISABLED
)) {
684 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
685 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
686 iwl_legacy_write_direct32(priv
, HBUS_TARG_MBX_C
,
687 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
691 if (flags
& CT_CARD_DISABLED
)
692 iwl4965_perform_ct_kill_task(priv
);
694 if (flags
& HW_CARD_DISABLED
)
695 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
697 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
699 if (!(flags
& RXON_CARD_DISABLED
))
700 iwl_legacy_scan_cancel(priv
);
702 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
703 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)))
704 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
705 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
707 wake_up_interruptible(&priv
->wait_command_queue
);
711 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
713 * Setup the RX handlers for each of the reply types sent from the uCode
716 * This function chains into the hardware specific files for them to setup
717 * any hardware specific handlers as well.
719 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
721 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
722 priv
->rx_handlers
[REPLY_ERROR
] = iwl_legacy_rx_reply_error
;
723 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl_legacy_rx_csa
;
724 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
725 iwl_legacy_rx_spectrum_measure_notif
;
726 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl_legacy_rx_pm_sleep_notif
;
727 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
728 iwl_legacy_rx_pm_debug_statistics_notif
;
729 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
732 * The same handler is used for both the REPLY to a discrete
733 * statistics request from the host as well as for the periodic
734 * statistics notifications (after received beacons) from the uCode.
736 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_reply_statistics
;
737 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_rx_statistics
;
739 iwl_legacy_setup_rx_scan_handlers(priv
);
741 /* status change handler */
742 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] =
743 iwl4965_rx_card_state_notif
;
745 priv
->rx_handlers
[MISSED_BEACONS_NOTIFICATION
] =
746 iwl4965_rx_missed_beacon_notif
;
748 priv
->rx_handlers
[REPLY_RX_PHY_CMD
] = iwl4965_rx_reply_rx_phy
;
749 priv
->rx_handlers
[REPLY_RX_MPDU_CMD
] = iwl4965_rx_reply_rx
;
751 priv
->rx_handlers
[REPLY_COMPRESSED_BA
] = iwl4965_rx_reply_compressed_ba
;
752 /* Set up hardware specific Rx handlers */
753 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
757 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
759 * Uses the priv->rx_handlers callback function array to invoke
760 * the appropriate handlers, including command responses,
761 * frame-received notifications, and other notifications.
763 void iwl4965_rx_handle(struct iwl_priv
*priv
)
765 struct iwl_rx_mem_buffer
*rxb
;
766 struct iwl_rx_packet
*pkt
;
767 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
775 /* uCode's read index (stored in shared DRAM) indicates the last Rx
776 * buffer that the driver may process (last buffer filled by ucode). */
777 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
780 /* Rx interrupt, but nothing sent from uCode */
782 IWL_DEBUG_RX(priv
, "r = %d, i = %d\n", r
, i
);
784 /* calculate total frames need to be restock after handling RX */
785 total_empty
= r
- rxq
->write_actual
;
787 total_empty
+= RX_QUEUE_SIZE
;
789 if (total_empty
> (RX_QUEUE_SIZE
/ 2))
797 /* If an RXB doesn't have a Rx queue slot associated with it,
798 * then a bug has been introduced in the queue refilling
799 * routines -- catch it here */
802 rxq
->queue
[i
] = NULL
;
804 pci_unmap_page(priv
->pci_dev
, rxb
->page_dma
,
805 PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
809 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
810 len
+= sizeof(u32
); /* account for status word */
811 trace_iwlwifi_legacy_dev_rx(priv
, pkt
, len
);
813 /* Reclaim a command buffer only if this packet is a response
814 * to a (driver-originated) command.
815 * If the packet (e.g. Rx frame) originated from uCode,
816 * there is no command buffer to reclaim.
817 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
818 * but apparently a few don't get set; catch them here. */
819 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
820 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
821 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
822 (pkt
->hdr
.cmd
!= REPLY_RX_MPDU_CMD
) &&
823 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
824 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
825 (pkt
->hdr
.cmd
!= REPLY_TX
);
827 /* Based on type of command response or notification,
828 * handle those that need handling via function in
829 * rx_handlers table. See iwl4965_setup_rx_handlers() */
830 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
831 IWL_DEBUG_RX(priv
, "r = %d, i = %d, %s, 0x%02x\n", r
,
832 i
, iwl_legacy_get_cmd_string(pkt
->hdr
.cmd
),
834 priv
->isr_stats
.rx_handlers
[pkt
->hdr
.cmd
]++;
835 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
837 /* No handling needed */
839 "r %d i %d No handler needed for %s, 0x%02x\n",
840 r
, i
, iwl_legacy_get_cmd_string(pkt
->hdr
.cmd
),
845 * XXX: After here, we should always check rxb->page
846 * against NULL before touching it or its virtual
847 * memory (pkt). Because some rx_handler might have
848 * already taken or freed the pages.
852 /* Invoke any callbacks, transfer the buffer to caller,
853 * and fire off the (possibly) blocking iwl_legacy_send_cmd()
854 * as we reclaim the driver command queue */
856 iwl_legacy_tx_cmd_complete(priv
, rxb
);
858 IWL_WARN(priv
, "Claim null rxb?\n");
861 /* Reuse the page if possible. For notification packets and
862 * SKBs that fail to Rx correctly, add them back into the
863 * rx_free list for reuse later. */
864 spin_lock_irqsave(&rxq
->lock
, flags
);
865 if (rxb
->page
!= NULL
) {
866 rxb
->page_dma
= pci_map_page(priv
->pci_dev
, rxb
->page
,
867 0, PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
869 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
872 list_add_tail(&rxb
->list
, &rxq
->rx_used
);
874 spin_unlock_irqrestore(&rxq
->lock
, flags
);
876 i
= (i
+ 1) & RX_QUEUE_MASK
;
877 /* If there are a lot of unused frames,
878 * restock the Rx queue so ucode wont assert. */
883 iwl4965_rx_replenish_now(priv
);
889 /* Backtrack one entry */
892 iwl4965_rx_replenish_now(priv
);
894 iwl4965_rx_queue_restock(priv
);
897 /* call this function to flush any scheduled tasklet */
898 static inline void iwl4965_synchronize_irq(struct iwl_priv
*priv
)
900 /* wait to make sure we flush pending tasklet*/
901 synchronize_irq(priv
->pci_dev
->irq
);
902 tasklet_kill(&priv
->irq_tasklet
);
905 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
907 u32 inta
, handled
= 0;
911 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
915 spin_lock_irqsave(&priv
->lock
, flags
);
917 /* Ack/clear/reset pending uCode interrupts.
918 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
919 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
920 inta
= iwl_read32(priv
, CSR_INT
);
921 iwl_write32(priv
, CSR_INT
, inta
);
923 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
924 * Any new interrupts that happen after this, either while we're
925 * in this tasklet, or later, will show up in next ISR/tasklet. */
926 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
927 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
929 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
930 if (iwl_legacy_get_debug_level(priv
) & IWL_DL_ISR
) {
932 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
933 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
934 inta
, inta_mask
, inta_fh
);
938 spin_unlock_irqrestore(&priv
->lock
, flags
);
940 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
941 * atomic, make sure that inta covers all the interrupts that
942 * we've discovered, even if FH interrupt came in just after
943 * reading CSR_INT. */
944 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
945 inta
|= CSR_INT_BIT_FH_RX
;
946 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
947 inta
|= CSR_INT_BIT_FH_TX
;
949 /* Now service all interrupt bits discovered above. */
950 if (inta
& CSR_INT_BIT_HW_ERR
) {
951 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
953 /* Tell the device to stop sending interrupts */
954 iwl_legacy_disable_interrupts(priv
);
956 priv
->isr_stats
.hw
++;
957 iwl_legacy_irq_handle_error(priv
);
959 handled
|= CSR_INT_BIT_HW_ERR
;
964 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
965 if (iwl_legacy_get_debug_level(priv
) & (IWL_DL_ISR
)) {
966 /* NIC fires this, but we don't use it, redundant with WAKEUP */
967 if (inta
& CSR_INT_BIT_SCD
) {
968 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
969 "the frame/frames.\n");
970 priv
->isr_stats
.sch
++;
973 /* Alive notification via Rx interrupt will do the real work */
974 if (inta
& CSR_INT_BIT_ALIVE
) {
975 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
976 priv
->isr_stats
.alive
++;
980 /* Safely ignore these bits for debug checks below */
981 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
983 /* HW RF KILL switch toggled */
984 if (inta
& CSR_INT_BIT_RF_KILL
) {
986 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
987 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
990 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
991 hw_rf_kill
? "disable radio" : "enable radio");
993 priv
->isr_stats
.rfkill
++;
995 /* driver only loads ucode once setting the interface up.
996 * the driver allows loading the ucode even if the radio
997 * is killed. Hence update the killswitch state here. The
998 * rfkill handler will care about restarting if needed.
1000 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1002 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1004 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1005 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1008 handled
|= CSR_INT_BIT_RF_KILL
;
1011 /* Chip got too hot and stopped itself */
1012 if (inta
& CSR_INT_BIT_CT_KILL
) {
1013 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1014 priv
->isr_stats
.ctkill
++;
1015 handled
|= CSR_INT_BIT_CT_KILL
;
1018 /* Error detected by uCode */
1019 if (inta
& CSR_INT_BIT_SW_ERR
) {
1020 IWL_ERR(priv
, "Microcode SW error detected. "
1021 " Restarting 0x%X.\n", inta
);
1022 priv
->isr_stats
.sw
++;
1023 iwl_legacy_irq_handle_error(priv
);
1024 handled
|= CSR_INT_BIT_SW_ERR
;
1028 * uCode wakes up after power-down sleep.
1029 * Tell device about any new tx or host commands enqueued,
1030 * and about any Rx buffers made available while asleep.
1032 if (inta
& CSR_INT_BIT_WAKEUP
) {
1033 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1034 iwl_legacy_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1035 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1036 iwl_legacy_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1037 priv
->isr_stats
.wakeup
++;
1038 handled
|= CSR_INT_BIT_WAKEUP
;
1041 /* All uCode command responses, including Tx command responses,
1042 * Rx "responses" (frame-received notification), and other
1043 * notifications from uCode come through here*/
1044 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1045 iwl4965_rx_handle(priv
);
1046 priv
->isr_stats
.rx
++;
1047 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1050 /* This "Tx" DMA channel is used only for loading uCode */
1051 if (inta
& CSR_INT_BIT_FH_TX
) {
1052 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1053 priv
->isr_stats
.tx
++;
1054 handled
|= CSR_INT_BIT_FH_TX
;
1055 /* Wake up uCode load routine, now that load is complete */
1056 priv
->ucode_write_complete
= 1;
1057 wake_up_interruptible(&priv
->wait_command_queue
);
1060 if (inta
& ~handled
) {
1061 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1062 priv
->isr_stats
.unhandled
++;
1065 if (inta
& ~(priv
->inta_mask
)) {
1066 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1067 inta
& ~priv
->inta_mask
);
1068 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
1071 /* Re-enable all interrupts */
1072 /* only Re-enable if disabled by irq */
1073 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1074 iwl_legacy_enable_interrupts(priv
);
1075 /* Re-enable RF_KILL if it occurred */
1076 else if (handled
& CSR_INT_BIT_RF_KILL
)
1077 iwl_legacy_enable_rfkill_int(priv
);
1079 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
1080 if (iwl_legacy_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1081 inta
= iwl_read32(priv
, CSR_INT
);
1082 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1083 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1085 "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1086 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
1091 /*****************************************************************************
1095 *****************************************************************************/
1097 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
1100 * The following adds a new attribute to the sysfs representation
1101 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
1102 * used for controlling the debug level.
1104 * See the level definitions in iwl for details.
1106 * The debug_level being managed using sysfs below is a per device debug
1107 * level that is used instead of the global debug level if it (the per
1108 * device debug level) is set.
1110 static ssize_t
iwl4965_show_debug_level(struct device
*d
,
1111 struct device_attribute
*attr
, char *buf
)
1113 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1114 return sprintf(buf
, "0x%08X\n", iwl_legacy_get_debug_level(priv
));
1116 static ssize_t
iwl4965_store_debug_level(struct device
*d
,
1117 struct device_attribute
*attr
,
1118 const char *buf
, size_t count
)
1120 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1124 ret
= strict_strtoul(buf
, 0, &val
);
1126 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
1128 priv
->debug_level
= val
;
1129 if (iwl_legacy_alloc_traffic_mem(priv
))
1131 "Not enough memory to generate traffic log\n");
1133 return strnlen(buf
, count
);
1136 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
1137 iwl4965_show_debug_level
, iwl4965_store_debug_level
);
1140 #endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
1143 static ssize_t
iwl4965_show_temperature(struct device
*d
,
1144 struct device_attribute
*attr
, char *buf
)
1146 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1148 if (!iwl_legacy_is_alive(priv
))
1151 return sprintf(buf
, "%d\n", priv
->temperature
);
1154 static DEVICE_ATTR(temperature
, S_IRUGO
, iwl4965_show_temperature
, NULL
);
1156 static ssize_t
iwl4965_show_tx_power(struct device
*d
,
1157 struct device_attribute
*attr
, char *buf
)
1159 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1161 if (!iwl_legacy_is_ready_rf(priv
))
1162 return sprintf(buf
, "off\n");
1164 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
1167 static ssize_t
iwl4965_store_tx_power(struct device
*d
,
1168 struct device_attribute
*attr
,
1169 const char *buf
, size_t count
)
1171 struct iwl_priv
*priv
= dev_get_drvdata(d
);
1175 ret
= strict_strtoul(buf
, 10, &val
);
1177 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
1179 ret
= iwl_legacy_set_tx_power(priv
, val
, false);
1181 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
1189 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
,
1190 iwl4965_show_tx_power
, iwl4965_store_tx_power
);
1192 static struct attribute
*iwl_sysfs_entries
[] = {
1193 &dev_attr_temperature
.attr
,
1194 &dev_attr_tx_power
.attr
,
1195 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
1196 &dev_attr_debug_level
.attr
,
1201 static struct attribute_group iwl_attribute_group
= {
1202 .name
= NULL
, /* put in device directory */
1203 .attrs
= iwl_sysfs_entries
,
1206 /******************************************************************************
1208 * uCode download functions
1210 ******************************************************************************/
1212 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
1214 iwl_legacy_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1215 iwl_legacy_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1216 iwl_legacy_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1217 iwl_legacy_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1218 iwl_legacy_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1219 iwl_legacy_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1222 static void iwl4965_nic_start(struct iwl_priv
*priv
)
1224 /* Remove all resets to allow NIC to operate */
1225 iwl_write32(priv
, CSR_RESET
, 0);
1228 static void iwl4965_ucode_callback(const struct firmware
*ucode_raw
,
1230 static int iwl4965_mac_setup_register(struct iwl_priv
*priv
,
1231 u32 max_probe_length
);
1233 static int __must_check
iwl4965_request_firmware(struct iwl_priv
*priv
, bool first
)
1235 const char *name_pre
= priv
->cfg
->fw_name_pre
;
1239 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
1240 sprintf(tag
, "%d", priv
->fw_index
);
1243 sprintf(tag
, "%d", priv
->fw_index
);
1246 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
1247 IWL_ERR(priv
, "no suitable firmware found!\n");
1251 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
1253 IWL_DEBUG_INFO(priv
, "attempting to load firmware '%s'\n",
1254 priv
->firmware_name
);
1256 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
1257 &priv
->pci_dev
->dev
, GFP_KERNEL
, priv
,
1258 iwl4965_ucode_callback
);
1261 struct iwl4965_firmware_pieces
{
1262 const void *inst
, *data
, *init
, *init_data
, *boot
;
1263 size_t inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
1266 static int iwl4965_load_firmware(struct iwl_priv
*priv
,
1267 const struct firmware
*ucode_raw
,
1268 struct iwl4965_firmware_pieces
*pieces
)
1270 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
1271 u32 api_ver
, hdr_size
;
1274 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1275 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1283 if (ucode_raw
->size
< hdr_size
) {
1284 IWL_ERR(priv
, "File size too small!\n");
1287 pieces
->inst_size
= le32_to_cpu(ucode
->v1
.inst_size
);
1288 pieces
->data_size
= le32_to_cpu(ucode
->v1
.data_size
);
1289 pieces
->init_size
= le32_to_cpu(ucode
->v1
.init_size
);
1290 pieces
->init_data_size
=
1291 le32_to_cpu(ucode
->v1
.init_data_size
);
1292 pieces
->boot_size
= le32_to_cpu(ucode
->v1
.boot_size
);
1293 src
= ucode
->v1
.data
;
1297 /* Verify size of file vs. image size info in file's header */
1298 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
1299 pieces
->data_size
+ pieces
->init_size
+
1300 pieces
->init_data_size
+ pieces
->boot_size
) {
1303 "uCode file size %d does not match expected size\n",
1304 (int)ucode_raw
->size
);
1309 src
+= pieces
->inst_size
;
1311 src
+= pieces
->data_size
;
1313 src
+= pieces
->init_size
;
1314 pieces
->init_data
= src
;
1315 src
+= pieces
->init_data_size
;
1317 src
+= pieces
->boot_size
;
1323 * iwl4965_ucode_callback - callback when firmware was loaded
1325 * If loaded successfully, copies the firmware into buffers
1326 * for the card to fetch (via DMA).
1329 iwl4965_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1331 struct iwl_priv
*priv
= context
;
1332 struct iwl_ucode_header
*ucode
;
1334 struct iwl4965_firmware_pieces pieces
;
1335 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1336 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1339 u32 max_probe_length
= 200;
1340 u32 standard_phy_calibration_size
=
1341 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1343 memset(&pieces
, 0, sizeof(pieces
));
1346 if (priv
->fw_index
<= priv
->cfg
->ucode_api_max
)
1348 "request for firmware file '%s' failed.\n",
1349 priv
->firmware_name
);
1353 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1354 priv
->firmware_name
, ucode_raw
->size
);
1356 /* Make sure that we got at least the API version number */
1357 if (ucode_raw
->size
< 4) {
1358 IWL_ERR(priv
, "File size way too small!\n");
1362 /* Data from ucode file: header followed by uCode images */
1363 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1365 err
= iwl4965_load_firmware(priv
, ucode_raw
, &pieces
);
1370 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1373 * api_ver should match the api version forming part of the
1374 * firmware filename ... but we don't check for that and only rely
1375 * on the API version read from firmware header from here on forward
1377 if (api_ver
< api_min
|| api_ver
> api_max
) {
1379 "Driver unable to support your firmware API. "
1380 "Driver supports v%u, firmware is v%u.\n",
1385 if (api_ver
!= api_max
)
1387 "Firmware has old API version. Expected v%u, "
1388 "got v%u. New firmware can be obtained "
1389 "from http://www.intellinuxwireless.org.\n",
1392 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u\n",
1393 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1394 IWL_UCODE_MINOR(priv
->ucode_ver
),
1395 IWL_UCODE_API(priv
->ucode_ver
),
1396 IWL_UCODE_SERIAL(priv
->ucode_ver
));
1398 snprintf(priv
->hw
->wiphy
->fw_version
,
1399 sizeof(priv
->hw
->wiphy
->fw_version
),
1401 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1402 IWL_UCODE_MINOR(priv
->ucode_ver
),
1403 IWL_UCODE_API(priv
->ucode_ver
),
1404 IWL_UCODE_SERIAL(priv
->ucode_ver
));
1407 * For any of the failures below (before allocating pci memory)
1408 * we will try to load a version with a smaller API -- maybe the
1409 * user just got a corrupted version of the latest API.
1412 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1414 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1416 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1418 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1420 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1421 pieces
.init_data_size
);
1422 IWL_DEBUG_INFO(priv
, "f/w package hdr boot inst size = %Zd\n",
1425 /* Verify that uCode images will fit in card's SRAM */
1426 if (pieces
.inst_size
> priv
->hw_params
.max_inst_size
) {
1427 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1432 if (pieces
.data_size
> priv
->hw_params
.max_data_size
) {
1433 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1438 if (pieces
.init_size
> priv
->hw_params
.max_inst_size
) {
1439 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1444 if (pieces
.init_data_size
> priv
->hw_params
.max_data_size
) {
1445 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1446 pieces
.init_data_size
);
1450 if (pieces
.boot_size
> priv
->hw_params
.max_bsm_size
) {
1451 IWL_ERR(priv
, "uCode boot instr len %Zd too large to fit in\n",
1456 /* Allocate ucode buffers for card's bus-master loading ... */
1458 /* Runtime instructions and 2 copies of data:
1459 * 1) unmodified from disk
1460 * 2) backup cache for save/restore during power-downs */
1461 priv
->ucode_code
.len
= pieces
.inst_size
;
1462 iwl_legacy_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1464 priv
->ucode_data
.len
= pieces
.data_size
;
1465 iwl_legacy_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1467 priv
->ucode_data_backup
.len
= pieces
.data_size
;
1468 iwl_legacy_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1470 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
1471 !priv
->ucode_data_backup
.v_addr
)
1474 /* Initialization instructions and data */
1475 if (pieces
.init_size
&& pieces
.init_data_size
) {
1476 priv
->ucode_init
.len
= pieces
.init_size
;
1477 iwl_legacy_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1479 priv
->ucode_init_data
.len
= pieces
.init_data_size
;
1480 iwl_legacy_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1482 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
1486 /* Bootstrap (instructions only, no data) */
1487 if (pieces
.boot_size
) {
1488 priv
->ucode_boot
.len
= pieces
.boot_size
;
1489 iwl_legacy_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1491 if (!priv
->ucode_boot
.v_addr
)
1495 /* Now that we can no longer fail, copy information */
1497 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1499 /* Copy images into buffers for card's bus-master reads ... */
1501 /* Runtime instructions (first block of data in file) */
1502 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode instr len %Zd\n",
1504 memcpy(priv
->ucode_code
.v_addr
, pieces
.inst
, pieces
.inst_size
);
1506 IWL_DEBUG_INFO(priv
, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1507 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
1511 * NOTE: Copy into backup buffer will be done in iwl_up()
1513 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode data len %Zd\n",
1515 memcpy(priv
->ucode_data
.v_addr
, pieces
.data
, pieces
.data_size
);
1516 memcpy(priv
->ucode_data_backup
.v_addr
, pieces
.data
, pieces
.data_size
);
1518 /* Initialization instructions */
1519 if (pieces
.init_size
) {
1520 IWL_DEBUG_INFO(priv
,
1521 "Copying (but not loading) init instr len %Zd\n",
1523 memcpy(priv
->ucode_init
.v_addr
, pieces
.init
, pieces
.init_size
);
1526 /* Initialization data */
1527 if (pieces
.init_data_size
) {
1528 IWL_DEBUG_INFO(priv
,
1529 "Copying (but not loading) init data len %Zd\n",
1530 pieces
.init_data_size
);
1531 memcpy(priv
->ucode_init_data
.v_addr
, pieces
.init_data
,
1532 pieces
.init_data_size
);
1535 /* Bootstrap instructions */
1536 IWL_DEBUG_INFO(priv
, "Copying (but not loading) boot instr len %Zd\n",
1538 memcpy(priv
->ucode_boot
.v_addr
, pieces
.boot
, pieces
.boot_size
);
1541 * figure out the offset of chain noise reset and gain commands
1542 * base on the size of standard phy calibration commands table size
1544 priv
->_4965
.phy_calib_chain_noise_reset_cmd
=
1545 standard_phy_calibration_size
;
1546 priv
->_4965
.phy_calib_chain_noise_gain_cmd
=
1547 standard_phy_calibration_size
+ 1;
1549 /**************************************************
1550 * This is still part of probe() in a sense...
1552 * 9. Setup and register with mac80211 and debugfs
1553 **************************************************/
1554 err
= iwl4965_mac_setup_register(priv
, max_probe_length
);
1558 err
= iwl_legacy_dbgfs_register(priv
, DRV_NAME
);
1561 "failed to create debugfs files. Ignoring error: %d\n", err
);
1563 err
= sysfs_create_group(&priv
->pci_dev
->dev
.kobj
,
1564 &iwl_attribute_group
);
1566 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1570 /* We have our copies now, allow OS release its copies */
1571 release_firmware(ucode_raw
);
1572 complete(&priv
->_4965
.firmware_loading_complete
);
1576 /* try next, if any */
1577 if (iwl4965_request_firmware(priv
, false))
1579 release_firmware(ucode_raw
);
1583 IWL_ERR(priv
, "failed to allocate pci memory\n");
1584 iwl4965_dealloc_ucode_pci(priv
);
1586 complete(&priv
->_4965
.firmware_loading_complete
);
1587 device_release_driver(&priv
->pci_dev
->dev
);
1588 release_firmware(ucode_raw
);
1591 static const char * const desc_lookup_text
[] = {
1596 "NMI_INTERRUPT_WDG",
1600 "HW_ERROR_TUNE_LOCK",
1601 "HW_ERROR_TEMPERATURE",
1602 "ILLEGAL_CHAN_FREQ",
1605 "NMI_INTERRUPT_HOST",
1606 "NMI_INTERRUPT_ACTION_PT",
1607 "NMI_INTERRUPT_UNKNOWN",
1608 "UCODE_VERSION_MISMATCH",
1609 "HW_ERROR_ABS_LOCK",
1610 "HW_ERROR_CAL_LOCK_FAIL",
1611 "NMI_INTERRUPT_INST_ACTION_PT",
1612 "NMI_INTERRUPT_DATA_ACTION_PT",
1614 "NMI_INTERRUPT_TRM",
1615 "NMI_INTERRUPT_BREAK_POINT"
1622 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
1623 { "NMI_INTERRUPT_WDG", 0x34 },
1624 { "SYSASSERT", 0x35 },
1625 { "UCODE_VERSION_MISMATCH", 0x37 },
1626 { "BAD_COMMAND", 0x38 },
1627 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1628 { "FATAL_ERROR", 0x3D },
1629 { "NMI_TRM_HW_ERR", 0x46 },
1630 { "NMI_INTERRUPT_TRM", 0x4C },
1631 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1632 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1633 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1634 { "NMI_INTERRUPT_HOST", 0x66 },
1635 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1636 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1637 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1638 { "ADVANCED_SYSASSERT", 0 },
1641 static const char *iwl4965_desc_lookup(u32 num
)
1644 int max
= ARRAY_SIZE(desc_lookup_text
);
1647 return desc_lookup_text
[num
];
1649 max
= ARRAY_SIZE(advanced_lookup
) - 1;
1650 for (i
= 0; i
< max
; i
++) {
1651 if (advanced_lookup
[i
].num
== num
)
1654 return advanced_lookup
[i
].name
;
1657 #define ERROR_START_OFFSET (1 * sizeof(u32))
1658 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1660 void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
1663 u32 desc
, time
, count
, base
, data1
;
1664 u32 blink1
, blink2
, ilink1
, ilink2
;
1667 if (priv
->ucode_type
== UCODE_INIT
) {
1668 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
1670 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
1673 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1675 "Not valid error log pointer 0x%08X for %s uCode\n",
1676 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
1680 count
= iwl_legacy_read_targ_mem(priv
, base
);
1682 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
1683 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1684 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1685 priv
->status
, count
);
1688 desc
= iwl_legacy_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
1689 priv
->isr_stats
.err_code
= desc
;
1690 pc
= iwl_legacy_read_targ_mem(priv
, base
+ 2 * sizeof(u32
));
1691 blink1
= iwl_legacy_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
1692 blink2
= iwl_legacy_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
1693 ilink1
= iwl_legacy_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
1694 ilink2
= iwl_legacy_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
1695 data1
= iwl_legacy_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
1696 data2
= iwl_legacy_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
1697 line
= iwl_legacy_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
1698 time
= iwl_legacy_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
1699 hcmd
= iwl_legacy_read_targ_mem(priv
, base
+ 22 * sizeof(u32
));
1701 trace_iwlwifi_legacy_dev_ucode_error(priv
, desc
,
1702 time
, data1
, data2
, line
,
1703 blink1
, blink2
, ilink1
, ilink2
);
1705 IWL_ERR(priv
, "Desc Time "
1706 "data1 data2 line\n");
1707 IWL_ERR(priv
, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
1708 iwl4965_desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
1709 IWL_ERR(priv
, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
1710 IWL_ERR(priv
, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
1711 pc
, blink1
, blink2
, ilink1
, ilink2
, hcmd
);
1714 #define EVENT_START_OFFSET (4 * sizeof(u32))
1717 * iwl4965_print_event_log - Dump error event log to syslog
1720 static int iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1721 u32 num_events
, u32 mode
,
1722 int pos
, char **buf
, size_t bufsz
)
1725 u32 base
; /* SRAM byte address of event log header */
1726 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1727 u32 ptr
; /* SRAM byte address of log data */
1728 u32 ev
, time
, data
; /* event log data */
1729 unsigned long reg_flags
;
1731 if (num_events
== 0)
1734 if (priv
->ucode_type
== UCODE_INIT
) {
1735 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1737 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1741 event_size
= 2 * sizeof(u32
);
1743 event_size
= 3 * sizeof(u32
);
1745 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1747 /* Make sure device is powered up for SRAM reads */
1748 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1749 iwl_grab_nic_access(priv
);
1751 /* Set starting address; reads will auto-increment */
1752 _iwl_legacy_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1755 /* "time" is actually "data" for mode 0 (no timestamp).
1756 * place event id # at far right for easier visual parsing. */
1757 for (i
= 0; i
< num_events
; i
++) {
1758 ev
= _iwl_legacy_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1759 time
= _iwl_legacy_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1763 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1764 "EVT_LOG:0x%08x:%04u\n",
1767 trace_iwlwifi_legacy_dev_ucode_event(priv
, 0,
1769 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1773 data
= _iwl_legacy_read_direct32(priv
,
1774 HBUS_TARG_MEM_RDAT
);
1776 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1777 "EVT_LOGT:%010u:0x%08x:%04u\n",
1780 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1782 trace_iwlwifi_legacy_dev_ucode_event(priv
, time
,
1788 /* Allow device to power down */
1789 iwl_release_nic_access(priv
);
1790 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1795 * iwl4965_print_last_event_logs - Dump the newest # of event log to syslog
1797 static int iwl4965_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1798 u32 num_wraps
, u32 next_entry
,
1800 int pos
, char **buf
, size_t bufsz
)
1803 * display the newest DEFAULT_LOG_ENTRIES entries
1804 * i.e the entries just before the next ont that uCode would fill.
1807 if (next_entry
< size
) {
1808 pos
= iwl4965_print_event_log(priv
,
1809 capacity
- (size
- next_entry
),
1810 size
- next_entry
, mode
,
1812 pos
= iwl4965_print_event_log(priv
, 0,
1816 pos
= iwl4965_print_event_log(priv
, next_entry
- size
,
1817 size
, mode
, pos
, buf
, bufsz
);
1819 if (next_entry
< size
) {
1820 pos
= iwl4965_print_event_log(priv
, 0, next_entry
,
1821 mode
, pos
, buf
, bufsz
);
1823 pos
= iwl4965_print_event_log(priv
, next_entry
- size
,
1824 size
, mode
, pos
, buf
, bufsz
);
1830 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1832 int iwl4965_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1833 char **buf
, bool display
)
1835 u32 base
; /* SRAM byte address of event log header */
1836 u32 capacity
; /* event log capacity in # entries */
1837 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1838 u32 num_wraps
; /* # times uCode wrapped to top of log */
1839 u32 next_entry
; /* index of next entry to be written by uCode */
1840 u32 size
; /* # entries that we'll print */
1844 if (priv
->ucode_type
== UCODE_INIT
) {
1845 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1847 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1850 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1852 "Invalid event log pointer 0x%08X for %s uCode\n",
1853 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
1857 /* event log header */
1858 capacity
= iwl_legacy_read_targ_mem(priv
, base
);
1859 mode
= iwl_legacy_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1860 num_wraps
= iwl_legacy_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1861 next_entry
= iwl_legacy_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1863 size
= num_wraps
? capacity
: next_entry
;
1865 /* bail out if nothing in log */
1867 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
1871 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
1872 if (!(iwl_legacy_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
1873 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1874 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1876 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1877 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1879 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
1882 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
1885 bufsz
= capacity
* 48;
1888 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
1892 if ((iwl_legacy_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
1894 * if uCode has wrapped back to top of log,
1895 * start at the oldest entry,
1896 * i.e the next one that uCode would fill.
1899 pos
= iwl4965_print_event_log(priv
, next_entry
,
1900 capacity
- next_entry
, mode
,
1902 /* (then/else) start at top of log */
1903 pos
= iwl4965_print_event_log(priv
, 0,
1904 next_entry
, mode
, pos
, buf
, bufsz
);
1906 pos
= iwl4965_print_last_event_logs(priv
, capacity
, num_wraps
,
1907 next_entry
, size
, mode
,
1910 pos
= iwl4965_print_last_event_logs(priv
, capacity
, num_wraps
,
1911 next_entry
, size
, mode
,
1917 static void iwl4965_rf_kill_ct_config(struct iwl_priv
*priv
)
1919 struct iwl_ct_kill_config cmd
;
1920 unsigned long flags
;
1923 spin_lock_irqsave(&priv
->lock
, flags
);
1924 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1925 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1926 spin_unlock_irqrestore(&priv
->lock
, flags
);
1928 cmd
.critical_temperature_R
=
1929 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1931 ret
= iwl_legacy_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
1934 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1936 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1938 "critical temperature is %d\n",
1939 priv
->hw_params
.ct_kill_threshold
);
1942 static const s8 default_queue_to_tx_fifo
[] = {
1952 static int iwl4965_alive_notify(struct iwl_priv
*priv
)
1955 unsigned long flags
;
1959 spin_lock_irqsave(&priv
->lock
, flags
);
1961 /* Clear 4965's internal Tx Scheduler data base */
1962 priv
->scd_base_addr
= iwl_legacy_read_prph(priv
,
1963 IWL49_SCD_SRAM_BASE_ADDR
);
1964 a
= priv
->scd_base_addr
+ IWL49_SCD_CONTEXT_DATA_OFFSET
;
1965 for (; a
< priv
->scd_base_addr
+ IWL49_SCD_TX_STTS_BITMAP_OFFSET
; a
+= 4)
1966 iwl_legacy_write_targ_mem(priv
, a
, 0);
1967 for (; a
< priv
->scd_base_addr
+ IWL49_SCD_TRANSLATE_TBL_OFFSET
; a
+= 4)
1968 iwl_legacy_write_targ_mem(priv
, a
, 0);
1969 for (; a
< priv
->scd_base_addr
+
1970 IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv
->hw_params
.max_txq_num
); a
+= 4)
1971 iwl_legacy_write_targ_mem(priv
, a
, 0);
1973 /* Tel 4965 where to find Tx byte count tables */
1974 iwl_legacy_write_prph(priv
, IWL49_SCD_DRAM_BASE_ADDR
,
1975 priv
->scd_bc_tbls
.dma
>> 10);
1977 /* Enable DMA channel */
1978 for (chan
= 0; chan
< FH49_TCSR_CHNL_NUM
; chan
++)
1979 iwl_legacy_write_direct32(priv
,
1980 FH_TCSR_CHNL_TX_CONFIG_REG(chan
),
1981 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE
|
1982 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE
);
1984 /* Update FH chicken bits */
1985 reg_val
= iwl_legacy_read_direct32(priv
, FH_TX_CHICKEN_BITS_REG
);
1986 iwl_legacy_write_direct32(priv
, FH_TX_CHICKEN_BITS_REG
,
1987 reg_val
| FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN
);
1989 /* Disable chain mode for all queues */
1990 iwl_legacy_write_prph(priv
, IWL49_SCD_QUEUECHAIN_SEL
, 0);
1992 /* Initialize each Tx queue (including the command queue) */
1993 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++) {
1995 /* TFD circular buffer read/write indexes */
1996 iwl_legacy_write_prph(priv
, IWL49_SCD_QUEUE_RDPTR(i
), 0);
1997 iwl_legacy_write_direct32(priv
, HBUS_TARG_WRPTR
, 0 | (i
<< 8));
1999 /* Max Tx Window size for Scheduler-ACK mode */
2000 iwl_legacy_write_targ_mem(priv
, priv
->scd_base_addr
+
2001 IWL49_SCD_CONTEXT_QUEUE_OFFSET(i
),
2003 IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS
) &
2004 IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK
);
2007 iwl_legacy_write_targ_mem(priv
, priv
->scd_base_addr
+
2008 IWL49_SCD_CONTEXT_QUEUE_OFFSET(i
) +
2011 IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS
) &
2012 IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK
);
2015 iwl_legacy_write_prph(priv
, IWL49_SCD_INTERRUPT_MASK
,
2016 (1 << priv
->hw_params
.max_txq_num
) - 1);
2018 /* Activate all Tx DMA/FIFO channels */
2019 iwl4965_txq_set_sched(priv
, IWL_MASK(0, 6));
2021 iwl4965_set_wr_ptrs(priv
, IWL_DEFAULT_CMD_QUEUE_NUM
, 0);
2023 /* make sure all queue are not stopped */
2024 memset(&priv
->queue_stopped
[0], 0, sizeof(priv
->queue_stopped
));
2025 for (i
= 0; i
< 4; i
++)
2026 atomic_set(&priv
->queue_stop_count
[i
], 0);
2028 /* reset to 0 to enable all the queue first */
2029 priv
->txq_ctx_active_msk
= 0;
2030 /* Map each Tx/cmd queue to its corresponding fifo */
2031 BUILD_BUG_ON(ARRAY_SIZE(default_queue_to_tx_fifo
) != 7);
2033 for (i
= 0; i
< ARRAY_SIZE(default_queue_to_tx_fifo
); i
++) {
2034 int ac
= default_queue_to_tx_fifo
[i
];
2036 iwl_txq_ctx_activate(priv
, i
);
2038 if (ac
== IWL_TX_FIFO_UNUSED
)
2041 iwl4965_tx_queue_set_status(priv
, &priv
->txq
[i
], ac
, 0);
2044 spin_unlock_irqrestore(&priv
->lock
, flags
);
2050 * iwl4965_alive_start - called after REPLY_ALIVE notification received
2051 * from protocol/runtime uCode (initialization uCode's
2052 * Alive gets handled by iwl_init_alive_start()).
2054 static void iwl4965_alive_start(struct iwl_priv
*priv
)
2057 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2059 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
2061 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
2062 /* We had an error bringing up the hardware, so take it
2063 * all the way back down so we can try again */
2064 IWL_DEBUG_INFO(priv
, "Alive failed.\n");
2068 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2069 * This is a paranoid check, because we would not have gotten the
2070 * "runtime" alive if code weren't properly loaded. */
2071 if (iwl4965_verify_ucode(priv
)) {
2072 /* Runtime instruction load was bad;
2073 * take it all the way back down so we can try again */
2074 IWL_DEBUG_INFO(priv
, "Bad runtime uCode load.\n");
2078 ret
= iwl4965_alive_notify(priv
);
2081 "Could not complete ALIVE transition [ntf]: %d\n", ret
);
2086 /* After the ALIVE response, we can send host commands to the uCode */
2087 set_bit(STATUS_ALIVE
, &priv
->status
);
2089 /* Enable watchdog to monitor the driver tx queues */
2090 iwl_legacy_setup_watchdog(priv
);
2092 if (iwl_legacy_is_rfkill(priv
))
2095 ieee80211_wake_queues(priv
->hw
);
2097 priv
->active_rate
= IWL_RATES_MASK
;
2099 if (iwl_legacy_is_associated_ctx(ctx
)) {
2100 struct iwl_legacy_rxon_cmd
*active_rxon
=
2101 (struct iwl_legacy_rxon_cmd
*)&ctx
->active
;
2102 /* apply any changes in staging */
2103 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2104 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2106 struct iwl_rxon_context
*tmp
;
2107 /* Initialize our rx_config data */
2108 for_each_context(priv
, tmp
)
2109 iwl_legacy_connection_init_rx_config(priv
, tmp
);
2111 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2112 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
2115 /* Configure bluetooth coexistence if enabled */
2116 iwl_legacy_send_bt_config(priv
);
2118 iwl4965_reset_run_time_calib(priv
);
2120 set_bit(STATUS_READY
, &priv
->status
);
2122 /* Configure the adapter for unassociated operation */
2123 iwl_legacy_commit_rxon(priv
, ctx
);
2125 /* At this point, the NIC is initialized and operational */
2126 iwl4965_rf_kill_ct_config(priv
);
2128 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
2129 wake_up_interruptible(&priv
->wait_command_queue
);
2131 iwl_legacy_power_update_mode(priv
, true);
2132 IWL_DEBUG_INFO(priv
, "Updated power mode\n");
2137 queue_work(priv
->workqueue
, &priv
->restart
);
2140 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
2142 static void __iwl4965_down(struct iwl_priv
*priv
)
2144 unsigned long flags
;
2147 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
2149 iwl_legacy_scan_cancel_timeout(priv
, 200);
2151 exit_pending
= test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2153 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
2154 * to prevent rearm timer */
2155 del_timer_sync(&priv
->watchdog
);
2157 iwl_legacy_clear_ucode_stations(priv
, NULL
);
2158 iwl_legacy_dealloc_bcast_stations(priv
);
2159 iwl_legacy_clear_driver_stations(priv
);
2161 /* Unblock any waiting calls */
2162 wake_up_interruptible_all(&priv
->wait_command_queue
);
2164 /* Wipe out the EXIT_PENDING status bit if we are not actually
2165 * exiting the module */
2167 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2169 /* stop and reset the on-board processor */
2170 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2172 /* tell the device to stop sending interrupts */
2173 spin_lock_irqsave(&priv
->lock
, flags
);
2174 iwl_legacy_disable_interrupts(priv
);
2175 spin_unlock_irqrestore(&priv
->lock
, flags
);
2176 iwl4965_synchronize_irq(priv
);
2178 if (priv
->mac80211_registered
)
2179 ieee80211_stop_queues(priv
->hw
);
2181 /* If we have not previously called iwl_init() then
2182 * clear all bits but the RF Kill bit and return */
2183 if (!iwl_legacy_is_init(priv
)) {
2184 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2186 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2187 STATUS_GEO_CONFIGURED
|
2188 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2189 STATUS_EXIT_PENDING
;
2193 /* ...otherwise clear out all the status bits but the RF Kill
2194 * bit and continue taking the NIC down. */
2195 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2197 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2198 STATUS_GEO_CONFIGURED
|
2199 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2201 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2202 STATUS_EXIT_PENDING
;
2204 iwl4965_txq_ctx_stop(priv
);
2205 iwl4965_rxq_stop(priv
);
2207 /* Power-down device's busmaster DMA clocks */
2208 iwl_legacy_write_prph(priv
, APMG_CLK_DIS_REG
, APMG_CLK_VAL_DMA_CLK_RQT
);
2211 /* Make sure (redundant) we've released our request to stay awake */
2212 iwl_legacy_clear_bit(priv
, CSR_GP_CNTRL
,
2213 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
2215 /* Stop the device, and put it in low power state */
2216 iwl_legacy_apm_stop(priv
);
2219 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
2221 dev_kfree_skb(priv
->beacon_skb
);
2222 priv
->beacon_skb
= NULL
;
2224 /* clear out any free frames */
2225 iwl4965_clear_free_frames(priv
);
2228 static void iwl4965_down(struct iwl_priv
*priv
)
2230 mutex_lock(&priv
->mutex
);
2231 __iwl4965_down(priv
);
2232 mutex_unlock(&priv
->mutex
);
2234 iwl4965_cancel_deferred_work(priv
);
2237 #define HW_READY_TIMEOUT (50)
2239 static int iwl4965_set_hw_ready(struct iwl_priv
*priv
)
2243 iwl_legacy_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2244 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
);
2246 /* See if we got it */
2247 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2248 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2249 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2251 if (ret
!= -ETIMEDOUT
)
2252 priv
->hw_ready
= true;
2254 priv
->hw_ready
= false;
2256 IWL_DEBUG_INFO(priv
, "hardware %s\n",
2257 (priv
->hw_ready
== 1) ? "ready" : "not ready");
2261 static int iwl4965_prepare_card_hw(struct iwl_priv
*priv
)
2265 IWL_DEBUG_INFO(priv
, "iwl4965_prepare_card_hw enter\n");
2267 ret
= iwl4965_set_hw_ready(priv
);
2271 /* If HW is not ready, prepare the conditions to check again */
2272 iwl_legacy_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2273 CSR_HW_IF_CONFIG_REG_PREPARE
);
2275 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2276 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
,
2277 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
, 150000);
2279 /* HW should be ready by now, check again. */
2280 if (ret
!= -ETIMEDOUT
)
2281 iwl4965_set_hw_ready(priv
);
2286 #define MAX_HW_RESTARTS 5
2288 static int __iwl4965_up(struct iwl_priv
*priv
)
2290 struct iwl_rxon_context
*ctx
;
2294 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2295 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
2299 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
2300 IWL_ERR(priv
, "ucode not available for device bringup\n");
2304 for_each_context(priv
, ctx
) {
2305 ret
= iwl4965_alloc_bcast_station(priv
, ctx
);
2307 iwl_legacy_dealloc_bcast_stations(priv
);
2312 iwl4965_prepare_card_hw(priv
);
2314 if (!priv
->hw_ready
) {
2315 IWL_WARN(priv
, "Exit HW not ready\n");
2319 /* If platform's RF_KILL switch is NOT set to KILL */
2320 if (iwl_read32(priv
,
2321 CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
2322 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2324 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2326 if (iwl_legacy_is_rfkill(priv
)) {
2327 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, true);
2329 iwl_legacy_enable_interrupts(priv
);
2330 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
2334 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2336 /* must be initialised before iwl_hw_nic_init */
2337 priv
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
2339 ret
= iwl4965_hw_nic_init(priv
);
2341 IWL_ERR(priv
, "Unable to init nic\n");
2345 /* make sure rfkill handshake bits are cleared */
2346 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2347 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2348 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2350 /* clear (again), then enable host interrupts */
2351 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2352 iwl_legacy_enable_interrupts(priv
);
2354 /* really make sure rfkill handshake bits are cleared */
2355 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2356 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2358 /* Copy original ucode data image from disk into backup cache.
2359 * This will be used to initialize the on-board processor's
2360 * data SRAM for a clean start when the runtime program first loads. */
2361 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
2362 priv
->ucode_data
.len
);
2364 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
2366 /* load bootstrap state machine,
2367 * load bootstrap program into processor's memory,
2368 * prepare to load the "initialize" uCode */
2369 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
2372 IWL_ERR(priv
, "Unable to set up bootstrap uCode: %d\n",
2377 /* start card; "initialize" will load runtime ucode */
2378 iwl4965_nic_start(priv
);
2380 IWL_DEBUG_INFO(priv
, DRV_NAME
" is coming up\n");
2385 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2386 __iwl4965_down(priv
);
2387 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2389 /* tried to restart and config the device for as long as our
2390 * patience could withstand */
2391 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
2396 /*****************************************************************************
2398 * Workqueue callbacks
2400 *****************************************************************************/
2402 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
2404 struct iwl_priv
*priv
=
2405 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
2407 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2410 mutex_lock(&priv
->mutex
);
2411 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
2412 mutex_unlock(&priv
->mutex
);
2415 static void iwl4965_bg_alive_start(struct work_struct
*data
)
2417 struct iwl_priv
*priv
=
2418 container_of(data
, struct iwl_priv
, alive_start
.work
);
2420 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2423 mutex_lock(&priv
->mutex
);
2424 iwl4965_alive_start(priv
);
2425 mutex_unlock(&priv
->mutex
);
2428 static void iwl4965_bg_run_time_calib_work(struct work_struct
*work
)
2430 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2431 run_time_calib_work
);
2433 mutex_lock(&priv
->mutex
);
2435 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2436 test_bit(STATUS_SCANNING
, &priv
->status
)) {
2437 mutex_unlock(&priv
->mutex
);
2441 if (priv
->start_calib
) {
2442 iwl4965_chain_noise_calibration(priv
,
2443 (void *)&priv
->_4965
.statistics
);
2444 iwl4965_sensitivity_calibration(priv
,
2445 (void *)&priv
->_4965
.statistics
);
2448 mutex_unlock(&priv
->mutex
);
2451 static void iwl4965_bg_restart(struct work_struct
*data
)
2453 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
2455 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2458 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
2459 struct iwl_rxon_context
*ctx
;
2461 mutex_lock(&priv
->mutex
);
2462 for_each_context(priv
, ctx
)
2466 __iwl4965_down(priv
);
2468 mutex_unlock(&priv
->mutex
);
2469 iwl4965_cancel_deferred_work(priv
);
2470 ieee80211_restart_hw(priv
->hw
);
2474 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2477 mutex_lock(&priv
->mutex
);
2479 mutex_unlock(&priv
->mutex
);
2483 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
2485 struct iwl_priv
*priv
=
2486 container_of(data
, struct iwl_priv
, rx_replenish
);
2488 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2491 mutex_lock(&priv
->mutex
);
2492 iwl4965_rx_replenish(priv
);
2493 mutex_unlock(&priv
->mutex
);
2496 /*****************************************************************************
2498 * mac80211 entry point functions
2500 *****************************************************************************/
2502 #define UCODE_READY_TIMEOUT (4 * HZ)
2505 * Not a mac80211 entry point function, but it fits in with all the
2506 * other mac80211 functions grouped here.
2508 static int iwl4965_mac_setup_register(struct iwl_priv
*priv
,
2509 u32 max_probe_length
)
2512 struct ieee80211_hw
*hw
= priv
->hw
;
2513 struct iwl_rxon_context
*ctx
;
2515 hw
->rate_control_algorithm
= "iwl-4965-rs";
2517 /* Tell mac80211 our characteristics */
2518 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2519 IEEE80211_HW_AMPDU_AGGREGATION
|
2520 IEEE80211_HW_NEED_DTIM_PERIOD
|
2521 IEEE80211_HW_SPECTRUM_MGMT
|
2522 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
2524 if (priv
->cfg
->sku
& IWL_SKU_N
)
2525 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2526 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2528 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2529 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
2531 for_each_context(priv
, ctx
) {
2532 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
2533 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
2536 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
2537 WIPHY_FLAG_DISABLE_BEACON_HINTS
;
2540 * For now, disable PS by default because it affects
2541 * RX performance significantly.
2543 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2545 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2546 /* we create the 802.11 header and a zero-length SSID element */
2547 hw
->wiphy
->max_scan_ie_len
= max_probe_length
- 24 - 2;
2549 /* Default value; 4 EDCA QOS priorities */
2552 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2554 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2555 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2556 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2557 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2558 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2559 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2561 iwl_legacy_leds_init(priv
);
2563 ret
= ieee80211_register_hw(priv
->hw
);
2565 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2568 priv
->mac80211_registered
= 1;
2574 int iwl4965_mac_start(struct ieee80211_hw
*hw
)
2576 struct iwl_priv
*priv
= hw
->priv
;
2579 IWL_DEBUG_MAC80211(priv
, "enter\n");
2581 /* we should be verifying the device is ready to be opened */
2582 mutex_lock(&priv
->mutex
);
2583 ret
= __iwl4965_up(priv
);
2584 mutex_unlock(&priv
->mutex
);
2589 if (iwl_legacy_is_rfkill(priv
))
2592 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2594 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2595 * mac80211 will not be run successfully. */
2596 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
2597 test_bit(STATUS_READY
, &priv
->status
),
2598 UCODE_READY_TIMEOUT
);
2600 if (!test_bit(STATUS_READY
, &priv
->status
)) {
2601 IWL_ERR(priv
, "START_ALIVE timeout after %dms.\n",
2602 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
2607 iwl4965_led_enable(priv
);
2611 IWL_DEBUG_MAC80211(priv
, "leave\n");
2615 void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
2617 struct iwl_priv
*priv
= hw
->priv
;
2619 IWL_DEBUG_MAC80211(priv
, "enter\n");
2628 flush_workqueue(priv
->workqueue
);
2630 /* User space software may expect getting rfkill changes
2631 * even if interface is down */
2632 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2633 iwl_legacy_enable_rfkill_int(priv
);
2635 IWL_DEBUG_MAC80211(priv
, "leave\n");
2638 void iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2640 struct iwl_priv
*priv
= hw
->priv
;
2642 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2644 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2645 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2647 if (iwl4965_tx_skb(priv
, skb
))
2648 dev_kfree_skb_any(skb
);
2650 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2653 void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2654 struct ieee80211_vif
*vif
,
2655 struct ieee80211_key_conf
*keyconf
,
2656 struct ieee80211_sta
*sta
,
2657 u32 iv32
, u16
*phase1key
)
2659 struct iwl_priv
*priv
= hw
->priv
;
2660 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2662 IWL_DEBUG_MAC80211(priv
, "enter\n");
2664 iwl4965_update_tkip_key(priv
, vif_priv
->ctx
, keyconf
, sta
,
2667 IWL_DEBUG_MAC80211(priv
, "leave\n");
2670 int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2671 struct ieee80211_vif
*vif
, struct ieee80211_sta
*sta
,
2672 struct ieee80211_key_conf
*key
)
2674 struct iwl_priv
*priv
= hw
->priv
;
2675 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2676 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2679 bool is_default_wep_key
= false;
2681 IWL_DEBUG_MAC80211(priv
, "enter\n");
2683 if (priv
->cfg
->mod_params
->sw_crypto
) {
2684 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2688 sta_id
= iwl_legacy_sta_id_or_broadcast(priv
, vif_priv
->ctx
, sta
);
2689 if (sta_id
== IWL_INVALID_STATION
)
2692 mutex_lock(&priv
->mutex
);
2693 iwl_legacy_scan_cancel_timeout(priv
, 100);
2696 * If we are getting WEP group key and we didn't receive any key mapping
2697 * so far, we are in legacy wep mode (group key only), otherwise we are
2699 * In legacy wep mode, we use another host command to the uCode.
2701 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2702 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2705 is_default_wep_key
= !ctx
->key_mapping_keys
;
2707 is_default_wep_key
=
2708 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
2713 if (is_default_wep_key
)
2714 ret
= iwl4965_set_default_wep_key(priv
,
2715 vif_priv
->ctx
, key
);
2717 ret
= iwl4965_set_dynamic_key(priv
, vif_priv
->ctx
,
2720 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2723 if (is_default_wep_key
)
2724 ret
= iwl4965_remove_default_wep_key(priv
, ctx
, key
);
2726 ret
= iwl4965_remove_dynamic_key(priv
, ctx
,
2729 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2735 mutex_unlock(&priv
->mutex
);
2736 IWL_DEBUG_MAC80211(priv
, "leave\n");
2741 int iwl4965_mac_ampdu_action(struct ieee80211_hw
*hw
,
2742 struct ieee80211_vif
*vif
,
2743 enum ieee80211_ampdu_mlme_action action
,
2744 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2747 struct iwl_priv
*priv
= hw
->priv
;
2750 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2753 if (!(priv
->cfg
->sku
& IWL_SKU_N
))
2756 mutex_lock(&priv
->mutex
);
2759 case IEEE80211_AMPDU_RX_START
:
2760 IWL_DEBUG_HT(priv
, "start Rx\n");
2761 ret
= iwl4965_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2763 case IEEE80211_AMPDU_RX_STOP
:
2764 IWL_DEBUG_HT(priv
, "stop Rx\n");
2765 ret
= iwl4965_sta_rx_agg_stop(priv
, sta
, tid
);
2766 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2769 case IEEE80211_AMPDU_TX_START
:
2770 IWL_DEBUG_HT(priv
, "start Tx\n");
2771 ret
= iwl4965_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2773 priv
->_4965
.agg_tids_count
++;
2774 IWL_DEBUG_HT(priv
, "priv->_4965.agg_tids_count = %u\n",
2775 priv
->_4965
.agg_tids_count
);
2778 case IEEE80211_AMPDU_TX_STOP
:
2779 IWL_DEBUG_HT(priv
, "stop Tx\n");
2780 ret
= iwl4965_tx_agg_stop(priv
, vif
, sta
, tid
);
2781 if ((ret
== 0) && (priv
->_4965
.agg_tids_count
> 0)) {
2782 priv
->_4965
.agg_tids_count
--;
2783 IWL_DEBUG_HT(priv
, "priv->_4965.agg_tids_count = %u\n",
2784 priv
->_4965
.agg_tids_count
);
2786 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2789 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2793 mutex_unlock(&priv
->mutex
);
2798 int iwl4965_mac_sta_add(struct ieee80211_hw
*hw
,
2799 struct ieee80211_vif
*vif
,
2800 struct ieee80211_sta
*sta
)
2802 struct iwl_priv
*priv
= hw
->priv
;
2803 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2804 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2805 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2809 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
2811 mutex_lock(&priv
->mutex
);
2812 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2814 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
2816 atomic_set(&sta_priv
->pending_frames
, 0);
2818 ret
= iwl_legacy_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
2819 is_ap
, sta
, &sta_id
);
2821 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
2823 /* Should we return success if return code is EEXIST ? */
2824 mutex_unlock(&priv
->mutex
);
2828 sta_priv
->common
.sta_id
= sta_id
;
2830 /* Initialize rate scaling */
2831 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
2833 iwl4965_rs_rate_init(priv
, sta
, sta_id
);
2834 mutex_unlock(&priv
->mutex
);
2839 void iwl4965_mac_channel_switch(struct ieee80211_hw
*hw
,
2840 struct ieee80211_channel_switch
*ch_switch
)
2842 struct iwl_priv
*priv
= hw
->priv
;
2843 const struct iwl_channel_info
*ch_info
;
2844 struct ieee80211_conf
*conf
= &hw
->conf
;
2845 struct ieee80211_channel
*channel
= ch_switch
->channel
;
2846 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2848 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2850 unsigned long flags
= 0;
2852 IWL_DEBUG_MAC80211(priv
, "enter\n");
2854 if (iwl_legacy_is_rfkill(priv
))
2857 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2858 test_bit(STATUS_SCANNING
, &priv
->status
))
2861 if (!iwl_legacy_is_associated_ctx(ctx
))
2864 /* channel switch in progress */
2865 if (priv
->switch_rxon
.switch_in_progress
== true)
2868 mutex_lock(&priv
->mutex
);
2869 if (priv
->cfg
->ops
->lib
->set_channel_switch
) {
2871 ch
= channel
->hw_value
;
2872 if (le16_to_cpu(ctx
->active
.channel
) != ch
) {
2873 ch_info
= iwl_legacy_get_channel_info(priv
,
2876 if (!iwl_legacy_is_channel_valid(ch_info
)) {
2877 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
2880 spin_lock_irqsave(&priv
->lock
, flags
);
2882 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2884 /* Configure HT40 channels */
2885 ctx
->ht
.enabled
= conf_is_ht(conf
);
2886 if (ctx
->ht
.enabled
) {
2887 if (conf_is_ht40_minus(conf
)) {
2888 ctx
->ht
.extension_chan_offset
=
2889 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2890 ctx
->ht
.is_40mhz
= true;
2891 } else if (conf_is_ht40_plus(conf
)) {
2892 ctx
->ht
.extension_chan_offset
=
2893 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2894 ctx
->ht
.is_40mhz
= true;
2896 ctx
->ht
.extension_chan_offset
=
2897 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2898 ctx
->ht
.is_40mhz
= false;
2901 ctx
->ht
.is_40mhz
= false;
2903 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2904 ctx
->staging
.flags
= 0;
2906 iwl_legacy_set_rxon_channel(priv
, channel
, ctx
);
2907 iwl_legacy_set_rxon_ht(priv
, ht_conf
);
2908 iwl_legacy_set_flags_for_band(priv
, ctx
, channel
->band
,
2910 spin_unlock_irqrestore(&priv
->lock
, flags
);
2912 iwl_legacy_set_rate(priv
);
2914 * at this point, staging_rxon has the
2915 * configuration for channel switch
2917 if (priv
->cfg
->ops
->lib
->set_channel_switch(priv
,
2919 priv
->switch_rxon
.switch_in_progress
= false;
2923 mutex_unlock(&priv
->mutex
);
2925 if (!priv
->switch_rxon
.switch_in_progress
)
2926 ieee80211_chswitch_done(ctx
->vif
, false);
2927 IWL_DEBUG_MAC80211(priv
, "leave\n");
2930 void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
2931 unsigned int changed_flags
,
2932 unsigned int *total_flags
,
2935 struct iwl_priv
*priv
= hw
->priv
;
2936 __le32 filter_or
= 0, filter_nand
= 0;
2937 struct iwl_rxon_context
*ctx
;
2939 #define CHK(test, flag) do { \
2940 if (*total_flags & (test)) \
2941 filter_or |= (flag); \
2943 filter_nand |= (flag); \
2946 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
2947 changed_flags
, *total_flags
);
2949 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
2950 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2951 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
2952 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
2956 mutex_lock(&priv
->mutex
);
2958 for_each_context(priv
, ctx
) {
2959 ctx
->staging
.filter_flags
&= ~filter_nand
;
2960 ctx
->staging
.filter_flags
|= filter_or
;
2963 * Not committing directly because hardware can perform a scan,
2964 * but we'll eventually commit the filter flags change anyway.
2968 mutex_unlock(&priv
->mutex
);
2971 * Receiving all multicast frames is always enabled by the
2972 * default flags setup in iwl_legacy_connection_init_rx_config()
2973 * since we currently do not support programming multicast
2974 * filters into the device.
2976 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
2977 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
2980 /*****************************************************************************
2982 * driver setup and teardown
2984 *****************************************************************************/
2986 static void iwl4965_bg_txpower_work(struct work_struct
*work
)
2988 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2991 /* If a scan happened to start before we got here
2992 * then just return; the statistics notification will
2993 * kick off another scheduled work to compensate for
2994 * any temperature delta we missed here. */
2995 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2996 test_bit(STATUS_SCANNING
, &priv
->status
))
2999 mutex_lock(&priv
->mutex
);
3001 /* Regardless of if we are associated, we must reconfigure the
3002 * TX power since frames can be sent on non-radar channels while
3004 priv
->cfg
->ops
->lib
->send_tx_power(priv
);
3006 /* Update last_temperature to keep is_calib_needed from running
3007 * when it isn't needed... */
3008 priv
->last_temperature
= priv
->temperature
;
3010 mutex_unlock(&priv
->mutex
);
3013 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
3015 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
3017 init_waitqueue_head(&priv
->wait_command_queue
);
3019 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
3020 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
3021 INIT_WORK(&priv
->run_time_calib_work
, iwl4965_bg_run_time_calib_work
);
3022 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
3023 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
3025 iwl_legacy_setup_scan_deferred_work(priv
);
3027 INIT_WORK(&priv
->txpower_work
, iwl4965_bg_txpower_work
);
3029 init_timer(&priv
->statistics_periodic
);
3030 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3031 priv
->statistics_periodic
.function
= iwl4965_bg_statistics_periodic
;
3033 init_timer(&priv
->ucode_trace
);
3034 priv
->ucode_trace
.data
= (unsigned long)priv
;
3035 priv
->ucode_trace
.function
= iwl4965_bg_ucode_trace
;
3037 init_timer(&priv
->watchdog
);
3038 priv
->watchdog
.data
= (unsigned long)priv
;
3039 priv
->watchdog
.function
= iwl_legacy_bg_watchdog
;
3041 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
3042 iwl4965_irq_tasklet
, (unsigned long)priv
);
3045 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
3047 cancel_work_sync(&priv
->txpower_work
);
3048 cancel_delayed_work_sync(&priv
->init_alive_start
);
3049 cancel_delayed_work(&priv
->alive_start
);
3050 cancel_work_sync(&priv
->run_time_calib_work
);
3052 iwl_legacy_cancel_scan_deferred_work(priv
);
3054 del_timer_sync(&priv
->statistics_periodic
);
3055 del_timer_sync(&priv
->ucode_trace
);
3058 static void iwl4965_init_hw_rates(struct iwl_priv
*priv
,
3059 struct ieee80211_rate
*rates
)
3063 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3064 rates
[i
].bitrate
= iwlegacy_rates
[i
].ieee
* 5;
3065 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3066 rates
[i
].hw_value_short
= i
;
3068 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3070 * If CCK != 1M then set short preamble rate flag.
3073 (iwlegacy_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3074 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3079 * Acquire priv->lock before calling this function !
3081 void iwl4965_set_wr_ptrs(struct iwl_priv
*priv
, int txq_id
, u32 index
)
3083 iwl_legacy_write_direct32(priv
, HBUS_TARG_WRPTR
,
3084 (index
& 0xff) | (txq_id
<< 8));
3085 iwl_legacy_write_prph(priv
, IWL49_SCD_QUEUE_RDPTR(txq_id
), index
);
3088 void iwl4965_tx_queue_set_status(struct iwl_priv
*priv
,
3089 struct iwl_tx_queue
*txq
,
3090 int tx_fifo_id
, int scd_retry
)
3092 int txq_id
= txq
->q
.id
;
3094 /* Find out whether to activate Tx queue */
3095 int active
= test_bit(txq_id
, &priv
->txq_ctx_active_msk
) ? 1 : 0;
3097 /* Set up and activate */
3098 iwl_legacy_write_prph(priv
, IWL49_SCD_QUEUE_STATUS_BITS(txq_id
),
3099 (active
<< IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE
) |
3100 (tx_fifo_id
<< IWL49_SCD_QUEUE_STTS_REG_POS_TXF
) |
3101 (scd_retry
<< IWL49_SCD_QUEUE_STTS_REG_POS_WSL
) |
3102 (scd_retry
<< IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK
) |
3103 IWL49_SCD_QUEUE_STTS_REG_MSK
);
3105 txq
->sched_retry
= scd_retry
;
3107 IWL_DEBUG_INFO(priv
, "%s %s Queue %d on AC %d\n",
3108 active
? "Activate" : "Deactivate",
3109 scd_retry
? "BA" : "AC", txq_id
, tx_fifo_id
);
3113 static int iwl4965_init_drv(struct iwl_priv
*priv
)
3117 spin_lock_init(&priv
->sta_lock
);
3118 spin_lock_init(&priv
->hcmd_lock
);
3120 INIT_LIST_HEAD(&priv
->free_frames
);
3122 mutex_init(&priv
->mutex
);
3123 mutex_init(&priv
->sync_cmd_mutex
);
3125 priv
->ieee_channels
= NULL
;
3126 priv
->ieee_rates
= NULL
;
3127 priv
->band
= IEEE80211_BAND_2GHZ
;
3129 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3130 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3131 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3132 priv
->_4965
.agg_tids_count
= 0;
3134 /* initialize force reset */
3135 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3136 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3137 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3138 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3140 /* Choose which receivers/antennas to use */
3141 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
3142 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
,
3143 &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3145 iwl_legacy_init_scan_params(priv
);
3147 ret
= iwl_legacy_init_channel_map(priv
);
3149 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3153 ret
= iwl_legacy_init_geos(priv
);
3155 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3156 goto err_free_channel_map
;
3158 iwl4965_init_hw_rates(priv
, priv
->ieee_rates
);
3162 err_free_channel_map
:
3163 iwl_legacy_free_channel_map(priv
);
3168 static void iwl4965_uninit_drv(struct iwl_priv
*priv
)
3170 iwl4965_calib_free_results(priv
);
3171 iwl_legacy_free_geos(priv
);
3172 iwl_legacy_free_channel_map(priv
);
3173 kfree(priv
->scan_cmd
);
3176 static void iwl4965_hw_detect(struct iwl_priv
*priv
)
3178 priv
->hw_rev
= _iwl_legacy_read32(priv
, CSR_HW_REV
);
3179 priv
->hw_wa_rev
= _iwl_legacy_read32(priv
, CSR_HW_REV_WA_REG
);
3180 priv
->rev_id
= priv
->pci_dev
->revision
;
3181 IWL_DEBUG_INFO(priv
, "HW Revision ID = 0x%X\n", priv
->rev_id
);
3184 static int iwl4965_set_hw_params(struct iwl_priv
*priv
)
3186 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
3187 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
3188 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
3189 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
3191 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
3193 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
3195 if (priv
->cfg
->mod_params
->disable_11n
)
3196 priv
->cfg
->sku
&= ~IWL_SKU_N
;
3198 /* Device-specific setup */
3199 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
3202 static const u8 iwl4965_bss_ac_to_fifo
[] = {
3209 static const u8 iwl4965_bss_ac_to_queue
[] = {
3214 iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
3217 struct iwl_priv
*priv
;
3218 struct ieee80211_hw
*hw
;
3219 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
3220 unsigned long flags
;
3223 /************************
3224 * 1. Allocating HW data
3225 ************************/
3227 hw
= iwl_legacy_alloc_all(cfg
);
3233 /* At this point both hw and priv are allocated. */
3236 * The default context is always valid,
3237 * more may be discovered when firmware
3240 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
3242 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
3243 priv
->contexts
[i
].ctxid
= i
;
3245 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
3246 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
3247 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
3248 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
3249 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
3250 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
3251 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
3252 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
3253 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwl4965_bss_ac_to_fifo
;
3254 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwl4965_bss_ac_to_queue
;
3255 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
3256 BIT(NL80211_IFTYPE_ADHOC
);
3257 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
3258 BIT(NL80211_IFTYPE_STATION
);
3259 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
3260 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
3261 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
3262 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
3264 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 1);
3266 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
3268 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3270 priv
->pci_dev
= pdev
;
3271 priv
->inta_mask
= CSR_INI_SET_MASK
;
3273 if (iwl_legacy_alloc_traffic_mem(priv
))
3274 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3276 /**************************
3277 * 2. Initializing PCI bus
3278 **************************/
3279 pci_disable_link_state(pdev
, PCIE_LINK_STATE_L0S
| PCIE_LINK_STATE_L1
|
3280 PCIE_LINK_STATE_CLKPM
);
3282 if (pci_enable_device(pdev
)) {
3284 goto out_ieee80211_free_hw
;
3287 pci_set_master(pdev
);
3289 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(36));
3291 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(36));
3293 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
3295 err
= pci_set_consistent_dma_mask(pdev
,
3297 /* both attempts failed: */
3299 IWL_WARN(priv
, "No suitable DMA available.\n");
3300 goto out_pci_disable_device
;
3304 err
= pci_request_regions(pdev
, DRV_NAME
);
3306 goto out_pci_disable_device
;
3308 pci_set_drvdata(pdev
, priv
);
3311 /***********************
3312 * 3. Read REV register
3313 ***********************/
3314 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
3315 if (!priv
->hw_base
) {
3317 goto out_pci_release_regions
;
3320 IWL_DEBUG_INFO(priv
, "pci_resource_len = 0x%08llx\n",
3321 (unsigned long long) pci_resource_len(pdev
, 0));
3322 IWL_DEBUG_INFO(priv
, "pci_resource_base = %p\n", priv
->hw_base
);
3324 /* these spin locks will be used in apm_ops.init and EEPROM access
3325 * we should init now
3327 spin_lock_init(&priv
->reg_lock
);
3328 spin_lock_init(&priv
->lock
);
3331 * stop and reset the on-board processor just in case it is in a
3332 * strange state ... like being left stranded by a primary kernel
3333 * and this is now the kdump kernel trying to start up
3335 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3337 iwl4965_hw_detect(priv
);
3338 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3339 priv
->cfg
->name
, priv
->hw_rev
);
3341 /* We disable the RETRY_TIMEOUT register (0x41) to keep
3342 * PCI Tx retries from interfering with C3 CPU state */
3343 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
3345 iwl4965_prepare_card_hw(priv
);
3346 if (!priv
->hw_ready
) {
3347 IWL_WARN(priv
, "Failed, HW not ready\n");
3354 /* Read the EEPROM */
3355 err
= iwl_legacy_eeprom_init(priv
);
3357 IWL_ERR(priv
, "Unable to init EEPROM\n");
3360 err
= iwl4965_eeprom_check_version(priv
);
3362 goto out_free_eeprom
;
3365 goto out_free_eeprom
;
3367 /* extract MAC Address */
3368 iwl4965_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3369 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3370 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3371 priv
->hw
->wiphy
->n_addresses
= 1;
3373 /************************
3374 * 5. Setup HW constants
3375 ************************/
3376 if (iwl4965_set_hw_params(priv
)) {
3377 IWL_ERR(priv
, "failed to set hw parameters\n");
3378 goto out_free_eeprom
;
3381 /*******************
3383 *******************/
3385 err
= iwl4965_init_drv(priv
);
3387 goto out_free_eeprom
;
3388 /* At this point both hw and priv are initialized. */
3390 /********************
3392 ********************/
3393 spin_lock_irqsave(&priv
->lock
, flags
);
3394 iwl_legacy_disable_interrupts(priv
);
3395 spin_unlock_irqrestore(&priv
->lock
, flags
);
3397 pci_enable_msi(priv
->pci_dev
);
3399 err
= request_irq(priv
->pci_dev
->irq
, iwl_legacy_isr
,
3400 IRQF_SHARED
, DRV_NAME
, priv
);
3402 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
3403 goto out_disable_msi
;
3406 iwl4965_setup_deferred_work(priv
);
3407 iwl4965_setup_rx_handlers(priv
);
3409 /*********************************************
3410 * 8. Enable interrupts and read RFKILL state
3411 *********************************************/
3413 /* enable rfkill interrupt: hw bug w/a */
3414 pci_read_config_word(priv
->pci_dev
, PCI_COMMAND
, &pci_cmd
);
3415 if (pci_cmd
& PCI_COMMAND_INTX_DISABLE
) {
3416 pci_cmd
&= ~PCI_COMMAND_INTX_DISABLE
;
3417 pci_write_config_word(priv
->pci_dev
, PCI_COMMAND
, pci_cmd
);
3420 iwl_legacy_enable_rfkill_int(priv
);
3422 /* If platform's RF_KILL switch is NOT set to KILL */
3423 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
3424 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3425 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3427 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3429 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3430 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3432 iwl_legacy_power_initialize(priv
);
3434 init_completion(&priv
->_4965
.firmware_loading_complete
);
3436 err
= iwl4965_request_firmware(priv
, true);
3438 goto out_destroy_workqueue
;
3442 out_destroy_workqueue
:
3443 destroy_workqueue(priv
->workqueue
);
3444 priv
->workqueue
= NULL
;
3445 free_irq(priv
->pci_dev
->irq
, priv
);
3447 pci_disable_msi(priv
->pci_dev
);
3448 iwl4965_uninit_drv(priv
);
3450 iwl_legacy_eeprom_free(priv
);
3452 pci_iounmap(pdev
, priv
->hw_base
);
3453 out_pci_release_regions
:
3454 pci_set_drvdata(pdev
, NULL
);
3455 pci_release_regions(pdev
);
3456 out_pci_disable_device
:
3457 pci_disable_device(pdev
);
3458 out_ieee80211_free_hw
:
3459 iwl_legacy_free_traffic_mem(priv
);
3460 ieee80211_free_hw(priv
->hw
);
3465 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
3467 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3468 unsigned long flags
;
3473 wait_for_completion(&priv
->_4965
.firmware_loading_complete
);
3475 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3477 iwl_legacy_dbgfs_unregister(priv
);
3478 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3480 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3481 * to be called and iwl4965_down since we are removing the device
3482 * we need to set STATUS_EXIT_PENDING bit.
3484 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3486 iwl_legacy_leds_exit(priv
);
3488 if (priv
->mac80211_registered
) {
3489 ieee80211_unregister_hw(priv
->hw
);
3490 priv
->mac80211_registered
= 0;
3496 * Make sure device is reset to low power before unloading driver.
3497 * This may be redundant with iwl4965_down(), but there are paths to
3498 * run iwl4965_down() without calling apm_ops.stop(), and there are
3499 * paths to avoid running iwl4965_down() at all before leaving driver.
3500 * This (inexpensive) call *makes sure* device is reset.
3502 iwl_legacy_apm_stop(priv
);
3504 /* make sure we flush any pending irq or
3505 * tasklet for the driver
3507 spin_lock_irqsave(&priv
->lock
, flags
);
3508 iwl_legacy_disable_interrupts(priv
);
3509 spin_unlock_irqrestore(&priv
->lock
, flags
);
3511 iwl4965_synchronize_irq(priv
);
3513 iwl4965_dealloc_ucode_pci(priv
);
3516 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
3517 iwl4965_hw_txq_ctx_free(priv
);
3519 iwl_legacy_eeprom_free(priv
);
3522 /*netif_stop_queue(dev); */
3523 flush_workqueue(priv
->workqueue
);
3525 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3526 * priv->workqueue... so we can't take down the workqueue
3528 destroy_workqueue(priv
->workqueue
);
3529 priv
->workqueue
= NULL
;
3530 iwl_legacy_free_traffic_mem(priv
);
3532 free_irq(priv
->pci_dev
->irq
, priv
);
3533 pci_disable_msi(priv
->pci_dev
);
3534 pci_iounmap(pdev
, priv
->hw_base
);
3535 pci_release_regions(pdev
);
3536 pci_disable_device(pdev
);
3537 pci_set_drvdata(pdev
, NULL
);
3539 iwl4965_uninit_drv(priv
);
3541 dev_kfree_skb(priv
->beacon_skb
);
3543 ieee80211_free_hw(priv
->hw
);
3547 * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
3548 * must be called under priv->lock and mac access
3550 void iwl4965_txq_set_sched(struct iwl_priv
*priv
, u32 mask
)
3552 iwl_legacy_write_prph(priv
, IWL49_SCD_TXFACT
, mask
);
3555 /*****************************************************************************
3557 * driver and module entry point
3559 *****************************************************************************/
3561 /* Hardware specific file defines the PCI IDs table for that hardware module */
3562 static DEFINE_PCI_DEVICE_TABLE(iwl4965_hw_card_ids
) = {
3563 #if defined(CONFIG_IWL4965_MODULE) || defined(CONFIG_IWL4965)
3564 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_cfg
)},
3565 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_cfg
)},
3566 #endif /* CONFIG_IWL4965 */
3570 MODULE_DEVICE_TABLE(pci
, iwl4965_hw_card_ids
);
3572 static struct pci_driver iwl4965_driver
= {
3574 .id_table
= iwl4965_hw_card_ids
,
3575 .probe
= iwl4965_pci_probe
,
3576 .remove
= __devexit_p(iwl4965_pci_remove
),
3577 .driver
.pm
= IWL_LEGACY_PM_OPS
,
3580 static int __init
iwl4965_init(void)
3584 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3585 pr_info(DRV_COPYRIGHT
"\n");
3587 ret
= iwl4965_rate_control_register();
3589 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3593 ret
= pci_register_driver(&iwl4965_driver
);
3595 pr_err("Unable to initialize PCI module\n");
3596 goto error_register
;
3602 iwl4965_rate_control_unregister();
3606 static void __exit
iwl4965_exit(void)
3608 pci_unregister_driver(&iwl4965_driver
);
3609 iwl4965_rate_control_unregister();
3612 module_exit(iwl4965_exit
);
3613 module_init(iwl4965_init
);
3615 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
3616 module_param_named(debug
, iwlegacy_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3617 MODULE_PARM_DESC(debug
, "debug output mask");
3620 module_param_named(swcrypto
, iwl4965_mod_params
.sw_crypto
, int, S_IRUGO
);
3621 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3622 module_param_named(queues_num
, iwl4965_mod_params
.num_of_queues
, int, S_IRUGO
);
3623 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3624 module_param_named(11n_disable
, iwl4965_mod_params
.disable_11n
, int, S_IRUGO
);
3625 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3626 module_param_named(amsdu_size_8K
, iwl4965_mod_params
.amsdu_size_8K
,
3628 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3629 module_param_named(fw_restart
, iwl4965_mod_params
.restart_fw
, int, S_IRUGO
);
3630 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");