2 * Marvell Wireless LAN device driver: HW/FW Initialization
4 * Copyright (C) 2011-2014, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
29 * This function adds a BSS priority table to the table list.
31 * The function allocates a new BSS priority table node and adds it to
32 * the end of BSS priority table list, kept in driver memory.
34 static int mwifiex_add_bss_prio_tbl(struct mwifiex_private
*priv
)
36 struct mwifiex_adapter
*adapter
= priv
->adapter
;
37 struct mwifiex_bss_prio_node
*bss_prio
;
38 struct mwifiex_bss_prio_tbl
*tbl
= adapter
->bss_prio_tbl
;
41 bss_prio
= kzalloc(sizeof(struct mwifiex_bss_prio_node
), GFP_KERNEL
);
45 bss_prio
->priv
= priv
;
46 INIT_LIST_HEAD(&bss_prio
->list
);
48 spin_lock_irqsave(&tbl
[priv
->bss_priority
].bss_prio_lock
, flags
);
49 list_add_tail(&bss_prio
->list
, &tbl
[priv
->bss_priority
].bss_prio_head
);
50 spin_unlock_irqrestore(&tbl
[priv
->bss_priority
].bss_prio_lock
, flags
);
55 static void wakeup_timer_fn(unsigned long data
)
57 struct mwifiex_adapter
*adapter
= (struct mwifiex_adapter
*)data
;
59 dev_err(adapter
->dev
, "Firmware wakeup failed\n");
60 adapter
->hw_status
= MWIFIEX_HW_STATUS_RESET
;
61 mwifiex_cancel_all_pending_cmd(adapter
);
63 if (adapter
->if_ops
.card_reset
)
64 adapter
->if_ops
.card_reset(adapter
);
68 * This function initializes the private structure and sets default
69 * values to the members.
71 * Additionally, it also initializes all the locks and sets up all the
74 int mwifiex_init_priv(struct mwifiex_private
*priv
)
78 priv
->media_connected
= false;
79 eth_broadcast_addr(priv
->curr_addr
);
81 priv
->pkt_tx_ctrl
= 0;
82 priv
->bss_mode
= NL80211_IFTYPE_UNSPECIFIED
;
83 priv
->data_rate
= 0; /* Initially indicate the rate as auto */
84 priv
->is_data_rate_auto
= true;
85 priv
->bcn_avg_factor
= DEFAULT_BCN_AVG_FACTOR
;
86 priv
->data_avg_factor
= DEFAULT_DATA_AVG_FACTOR
;
88 priv
->sec_info
.wep_enabled
= 0;
89 priv
->sec_info
.authentication_mode
= NL80211_AUTHTYPE_OPEN_SYSTEM
;
90 priv
->sec_info
.encryption_mode
= 0;
91 for (i
= 0; i
< ARRAY_SIZE(priv
->wep_key
); i
++)
92 memset(&priv
->wep_key
[i
], 0, sizeof(struct mwifiex_wep_key
));
93 priv
->wep_key_curr_index
= 0;
94 priv
->curr_pkt_filter
= HostCmd_ACT_MAC_RX_ON
| HostCmd_ACT_MAC_TX_ON
|
95 HostCmd_ACT_MAC_ETHERNETII_ENABLE
;
97 priv
->beacon_period
= 100; /* beacon interval */ ;
98 priv
->attempted_bss_desc
= NULL
;
99 memset(&priv
->curr_bss_params
, 0, sizeof(priv
->curr_bss_params
));
100 priv
->listen_interval
= MWIFIEX_DEFAULT_LISTEN_INTERVAL
;
102 memset(&priv
->prev_ssid
, 0, sizeof(priv
->prev_ssid
));
103 memset(&priv
->prev_bssid
, 0, sizeof(priv
->prev_bssid
));
104 memset(&priv
->assoc_rsp_buf
, 0, sizeof(priv
->assoc_rsp_buf
));
105 priv
->assoc_rsp_size
= 0;
106 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
107 priv
->atim_window
= 0;
108 priv
->adhoc_state
= ADHOC_IDLE
;
109 priv
->tx_power_level
= 0;
110 priv
->max_tx_power_level
= 0;
111 priv
->min_tx_power_level
= 0;
113 priv
->rxpd_htinfo
= 0;
115 priv
->rate_bitmap
= 0;
116 priv
->data_rssi_last
= 0;
117 priv
->data_rssi_avg
= 0;
118 priv
->data_nf_avg
= 0;
119 priv
->data_nf_last
= 0;
120 priv
->bcn_rssi_last
= 0;
121 priv
->bcn_rssi_avg
= 0;
122 priv
->bcn_nf_avg
= 0;
123 priv
->bcn_nf_last
= 0;
124 memset(&priv
->wpa_ie
, 0, sizeof(priv
->wpa_ie
));
125 memset(&priv
->aes_key
, 0, sizeof(priv
->aes_key
));
126 priv
->wpa_ie_len
= 0;
127 priv
->wpa_is_gtk_set
= false;
129 memset(&priv
->assoc_tlv_buf
, 0, sizeof(priv
->assoc_tlv_buf
));
130 priv
->assoc_tlv_buf_len
= 0;
131 memset(&priv
->wps
, 0, sizeof(priv
->wps
));
132 memset(&priv
->gen_ie_buf
, 0, sizeof(priv
->gen_ie_buf
));
133 priv
->gen_ie_buf_len
= 0;
134 memset(priv
->vs_ie
, 0, sizeof(priv
->vs_ie
));
136 priv
->wmm_required
= true;
137 priv
->wmm_enabled
= false;
138 priv
->wmm_qosinfo
= 0;
139 priv
->curr_bcn_buf
= NULL
;
140 priv
->curr_bcn_size
= 0;
142 priv
->wps_ie_len
= 0;
143 priv
->ap_11n_enabled
= 0;
144 memset(&priv
->roc_cfg
, 0, sizeof(priv
->roc_cfg
));
146 priv
->scan_block
= false;
149 priv
->csa_expire_time
= 0;
150 priv
->del_list_idx
= 0;
151 priv
->hs2_enabled
= false;
152 priv
->check_tdls_tx
= false;
153 memcpy(priv
->tos_to_tid_inv
, tos_to_tid_inv
, MAX_NUM_TID
);
155 mwifiex_init_11h_params(priv
);
157 return mwifiex_add_bss_prio_tbl(priv
);
161 * This function allocates buffers for members of the adapter
164 * The memory allocated includes scan table, command buffers, and
165 * sleep confirm command buffer. In addition, the queues are
168 static int mwifiex_allocate_adapter(struct mwifiex_adapter
*adapter
)
172 /* Allocate command buffer */
173 ret
= mwifiex_alloc_cmd_buffer(adapter
);
175 dev_err(adapter
->dev
, "%s: failed to alloc cmd buffer\n",
181 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm
)
184 if (!adapter
->sleep_cfm
) {
185 dev_err(adapter
->dev
, "%s: failed to alloc sleep cfm"
186 " cmd buffer\n", __func__
);
189 skb_reserve(adapter
->sleep_cfm
, INTF_HEADER_LEN
);
195 * This function initializes the adapter structure and sets default
196 * values to the members of adapter.
198 * This also initializes the WMM related parameters in the driver private
201 static void mwifiex_init_adapter(struct mwifiex_adapter
*adapter
)
203 struct mwifiex_opt_sleep_confirm
*sleep_cfm_buf
= NULL
;
205 skb_put(adapter
->sleep_cfm
, sizeof(struct mwifiex_opt_sleep_confirm
));
207 adapter
->cmd_sent
= false;
209 if (adapter
->iface_type
== MWIFIEX_SDIO
)
210 adapter
->data_sent
= true;
212 adapter
->data_sent
= false;
214 adapter
->cmd_resp_received
= false;
215 adapter
->event_received
= false;
216 adapter
->data_received
= false;
218 adapter
->surprise_removed
= false;
220 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
222 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
223 adapter
->ps_state
= PS_STATE_AWAKE
;
224 adapter
->need_to_wakeup
= false;
226 adapter
->scan_mode
= HostCmd_BSS_MODE_ANY
;
227 adapter
->specific_scan_time
= MWIFIEX_SPECIFIC_SCAN_CHAN_TIME
;
228 adapter
->active_scan_time
= MWIFIEX_ACTIVE_SCAN_CHAN_TIME
;
229 adapter
->passive_scan_time
= MWIFIEX_PASSIVE_SCAN_CHAN_TIME
;
230 adapter
->scan_chan_gap_time
= MWIFIEX_DEF_SCAN_CHAN_GAP_TIME
;
232 adapter
->scan_probes
= 1;
234 adapter
->multiple_dtim
= 1;
236 adapter
->local_listen_interval
= 0; /* default value in firmware
239 adapter
->is_deep_sleep
= false;
241 adapter
->delay_null_pkt
= false;
242 adapter
->delay_to_ps
= 1000;
243 adapter
->enhanced_ps_mode
= PS_MODE_AUTO
;
245 adapter
->gen_null_pkt
= false; /* Disable NULL Pkg generation by
247 adapter
->pps_uapsd_mode
= false; /* Disable pps/uapsd mode by
249 adapter
->pm_wakeup_card_req
= false;
251 adapter
->pm_wakeup_fw_try
= false;
253 adapter
->curr_tx_buf_size
= MWIFIEX_TX_DATA_BUF_SIZE_2K
;
255 adapter
->is_hs_configured
= false;
256 adapter
->hs_cfg
.conditions
= cpu_to_le32(HS_CFG_COND_DEF
);
257 adapter
->hs_cfg
.gpio
= HS_CFG_GPIO_DEF
;
258 adapter
->hs_cfg
.gap
= HS_CFG_GAP_DEF
;
259 adapter
->hs_activated
= false;
261 memset(adapter
->event_body
, 0, sizeof(adapter
->event_body
));
262 adapter
->hw_dot_11n_dev_cap
= 0;
263 adapter
->hw_dev_mcs_support
= 0;
264 adapter
->sec_chan_offset
= 0;
265 adapter
->adhoc_11n_enabled
= false;
267 mwifiex_wmm_init(adapter
);
269 sleep_cfm_buf
= (struct mwifiex_opt_sleep_confirm
*)
270 adapter
->sleep_cfm
->data
;
271 memset(sleep_cfm_buf
, 0, adapter
->sleep_cfm
->len
);
272 sleep_cfm_buf
->command
= cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
273 sleep_cfm_buf
->size
= cpu_to_le16(adapter
->sleep_cfm
->len
);
274 sleep_cfm_buf
->result
= 0;
275 sleep_cfm_buf
->action
= cpu_to_le16(SLEEP_CONFIRM
);
276 sleep_cfm_buf
->resp_ctrl
= cpu_to_le16(RESP_NEEDED
);
278 memset(&adapter
->sleep_params
, 0, sizeof(adapter
->sleep_params
));
279 memset(&adapter
->sleep_period
, 0, sizeof(adapter
->sleep_period
));
280 adapter
->tx_lock_flag
= false;
281 adapter
->null_pkt_interval
= 0;
282 adapter
->fw_bands
= 0;
283 adapter
->config_bands
= 0;
284 adapter
->adhoc_start_band
= 0;
285 adapter
->scan_channels
= NULL
;
286 adapter
->fw_release_number
= 0;
287 adapter
->fw_cap_info
= 0;
288 memset(&adapter
->upld_buf
, 0, sizeof(adapter
->upld_buf
));
289 adapter
->event_cause
= 0;
290 adapter
->region_code
= 0;
291 adapter
->bcn_miss_time_out
= DEFAULT_BCN_MISS_TIMEOUT
;
292 adapter
->adhoc_awake_period
= 0;
293 memset(&adapter
->arp_filter
, 0, sizeof(adapter
->arp_filter
));
294 adapter
->arp_filter_size
= 0;
295 adapter
->max_mgmt_ie_index
= MAX_MGMT_IE_INDEX
;
296 adapter
->key_api_major_ver
= 0;
297 adapter
->key_api_minor_ver
= 0;
298 eth_broadcast_addr(adapter
->perm_addr
);
299 adapter
->iface_limit
.sta_intf
= MWIFIEX_MAX_STA_NUM
;
300 adapter
->iface_limit
.uap_intf
= MWIFIEX_MAX_UAP_NUM
;
301 adapter
->iface_limit
.p2p_intf
= MWIFIEX_MAX_P2P_NUM
;
303 setup_timer(&adapter
->wakeup_timer
, wakeup_timer_fn
,
304 (unsigned long)adapter
);
308 * This function sets trans_start per tx_queue
310 void mwifiex_set_trans_start(struct net_device
*dev
)
314 for (i
= 0; i
< dev
->num_tx_queues
; i
++)
315 netdev_get_tx_queue(dev
, i
)->trans_start
= jiffies
;
317 dev
->trans_start
= jiffies
;
321 * This function wakes up all queues in net_device
323 void mwifiex_wake_up_net_dev_queue(struct net_device
*netdev
,
324 struct mwifiex_adapter
*adapter
)
326 unsigned long dev_queue_flags
;
329 spin_lock_irqsave(&adapter
->queue_lock
, dev_queue_flags
);
331 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
332 struct netdev_queue
*txq
= netdev_get_tx_queue(netdev
, i
);
334 if (netif_tx_queue_stopped(txq
))
335 netif_tx_wake_queue(txq
);
338 spin_unlock_irqrestore(&adapter
->queue_lock
, dev_queue_flags
);
342 * This function stops all queues in net_device
344 void mwifiex_stop_net_dev_queue(struct net_device
*netdev
,
345 struct mwifiex_adapter
*adapter
)
347 unsigned long dev_queue_flags
;
350 spin_lock_irqsave(&adapter
->queue_lock
, dev_queue_flags
);
352 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
353 struct netdev_queue
*txq
= netdev_get_tx_queue(netdev
, i
);
355 if (!netif_tx_queue_stopped(txq
))
356 netif_tx_stop_queue(txq
);
359 spin_unlock_irqrestore(&adapter
->queue_lock
, dev_queue_flags
);
363 * This function releases the lock variables and frees the locks and
366 static void mwifiex_free_lock_list(struct mwifiex_adapter
*adapter
)
368 struct mwifiex_private
*priv
;
372 list_del(&adapter
->cmd_free_q
);
373 list_del(&adapter
->cmd_pending_q
);
374 list_del(&adapter
->scan_pending_q
);
376 for (i
= 0; i
< adapter
->priv_num
; i
++)
377 list_del(&adapter
->bss_prio_tbl
[i
].bss_prio_head
);
379 for (i
= 0; i
< adapter
->priv_num
; i
++) {
380 if (adapter
->priv
[i
]) {
381 priv
= adapter
->priv
[i
];
382 for (j
= 0; j
< MAX_NUM_TID
; ++j
)
383 list_del(&priv
->wmm
.tid_tbl_ptr
[j
].ra_list
);
384 list_del(&priv
->tx_ba_stream_tbl_ptr
);
385 list_del(&priv
->rx_reorder_tbl_ptr
);
386 list_del(&priv
->sta_list
);
387 list_del(&priv
->auto_tdls_list
);
393 * This function performs cleanup for adapter structure.
395 * The cleanup is done recursively, by canceling all pending
396 * commands, freeing the member buffers previously allocated
397 * (command buffers, scan table buffer, sleep confirm command
398 * buffer), stopping the timers and calling the cleanup routines
399 * for every interface.
402 mwifiex_adapter_cleanup(struct mwifiex_adapter
*adapter
)
407 pr_err("%s: adapter is NULL\n", __func__
);
411 del_timer(&adapter
->wakeup_timer
);
412 mwifiex_cancel_all_pending_cmd(adapter
);
413 wake_up_interruptible(&adapter
->cmd_wait_q
.wait
);
414 wake_up_interruptible(&adapter
->hs_activate_wait_q
);
416 /* Free lock variables */
417 mwifiex_free_lock_list(adapter
);
419 /* Free command buffer */
420 dev_dbg(adapter
->dev
, "info: free cmd buffer\n");
421 mwifiex_free_cmd_buffer(adapter
);
423 for (idx
= 0; idx
< adapter
->num_mem_types
; idx
++) {
424 struct memory_type_mapping
*entry
=
425 &adapter
->mem_type_mapping_tbl
[idx
];
427 if (entry
->mem_ptr
) {
428 vfree(entry
->mem_ptr
);
429 entry
->mem_ptr
= NULL
;
434 if (adapter
->drv_info_dump
) {
435 vfree(adapter
->drv_info_dump
);
436 adapter
->drv_info_size
= 0;
439 if (adapter
->sleep_cfm
)
440 dev_kfree_skb_any(adapter
->sleep_cfm
);
444 * This function intializes the lock variables and
447 int mwifiex_init_lock_list(struct mwifiex_adapter
*adapter
)
449 struct mwifiex_private
*priv
;
452 spin_lock_init(&adapter
->mwifiex_lock
);
453 spin_lock_init(&adapter
->int_lock
);
454 spin_lock_init(&adapter
->main_proc_lock
);
455 spin_lock_init(&adapter
->mwifiex_cmd_lock
);
456 spin_lock_init(&adapter
->queue_lock
);
457 for (i
= 0; i
< adapter
->priv_num
; i
++) {
458 if (adapter
->priv
[i
]) {
459 priv
= adapter
->priv
[i
];
460 spin_lock_init(&priv
->rx_pkt_lock
);
461 spin_lock_init(&priv
->wmm
.ra_list_spinlock
);
462 spin_lock_init(&priv
->curr_bcn_buf_lock
);
463 spin_lock_init(&priv
->sta_list_spinlock
);
464 spin_lock_init(&priv
->auto_tdls_lock
);
468 /* Initialize cmd_free_q */
469 INIT_LIST_HEAD(&adapter
->cmd_free_q
);
470 /* Initialize cmd_pending_q */
471 INIT_LIST_HEAD(&adapter
->cmd_pending_q
);
472 /* Initialize scan_pending_q */
473 INIT_LIST_HEAD(&adapter
->scan_pending_q
);
475 spin_lock_init(&adapter
->cmd_free_q_lock
);
476 spin_lock_init(&adapter
->cmd_pending_q_lock
);
477 spin_lock_init(&adapter
->scan_pending_q_lock
);
478 spin_lock_init(&adapter
->rx_proc_lock
);
480 skb_queue_head_init(&adapter
->rx_data_q
);
481 skb_queue_head_init(&adapter
->tx_data_q
);
483 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
484 INIT_LIST_HEAD(&adapter
->bss_prio_tbl
[i
].bss_prio_head
);
485 spin_lock_init(&adapter
->bss_prio_tbl
[i
].bss_prio_lock
);
488 for (i
= 0; i
< adapter
->priv_num
; i
++) {
489 if (!adapter
->priv
[i
])
491 priv
= adapter
->priv
[i
];
492 for (j
= 0; j
< MAX_NUM_TID
; ++j
)
493 INIT_LIST_HEAD(&priv
->wmm
.tid_tbl_ptr
[j
].ra_list
);
494 INIT_LIST_HEAD(&priv
->tx_ba_stream_tbl_ptr
);
495 INIT_LIST_HEAD(&priv
->rx_reorder_tbl_ptr
);
496 INIT_LIST_HEAD(&priv
->sta_list
);
497 INIT_LIST_HEAD(&priv
->auto_tdls_list
);
498 skb_queue_head_init(&priv
->tdls_txq
);
500 spin_lock_init(&priv
->tx_ba_stream_tbl_lock
);
501 spin_lock_init(&priv
->rx_reorder_tbl_lock
);
503 spin_lock_init(&priv
->ack_status_lock
);
504 idr_init(&priv
->ack_status_frames
);
511 * This function initializes the firmware.
513 * The following operations are performed sequentially -
514 * - Allocate adapter structure
515 * - Initialize the adapter structure
516 * - Initialize the private structure
517 * - Add BSS priority tables to the adapter structure
518 * - For each interface, send the init commands to firmware
519 * - Send the first command in command pending queue, if available
521 int mwifiex_init_fw(struct mwifiex_adapter
*adapter
)
524 struct mwifiex_private
*priv
;
525 u8 i
, first_sta
= true;
526 int is_cmd_pend_q_empty
;
529 adapter
->hw_status
= MWIFIEX_HW_STATUS_INITIALIZING
;
531 /* Allocate memory for member of adapter structure */
532 ret
= mwifiex_allocate_adapter(adapter
);
536 /* Initialize adapter structure */
537 mwifiex_init_adapter(adapter
);
539 for (i
= 0; i
< adapter
->priv_num
; i
++) {
540 if (adapter
->priv
[i
]) {
541 priv
= adapter
->priv
[i
];
543 /* Initialize private structure */
544 ret
= mwifiex_init_priv(priv
);
550 if (adapter
->if_ops
.init_fw_port
) {
551 if (adapter
->if_ops
.init_fw_port(adapter
))
555 for (i
= 0; i
< adapter
->priv_num
; i
++) {
556 if (adapter
->priv
[i
]) {
557 ret
= mwifiex_sta_init_cmd(adapter
->priv
[i
], first_sta
,
566 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
567 is_cmd_pend_q_empty
= list_empty(&adapter
->cmd_pending_q
);
568 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
569 if (!is_cmd_pend_q_empty
) {
570 /* Send the first command in queue and return */
571 if (mwifiex_main_process(adapter
) != -1)
574 adapter
->hw_status
= MWIFIEX_HW_STATUS_READY
;
581 * This function deletes the BSS priority tables.
583 * The function traverses through all the allocated BSS priority nodes
584 * in every BSS priority table and frees them.
586 static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private
*priv
)
589 struct mwifiex_adapter
*adapter
= priv
->adapter
;
590 struct mwifiex_bss_prio_node
*bssprio_node
, *tmp_node
;
591 struct list_head
*head
;
592 spinlock_t
*lock
; /* bss priority lock */
595 for (i
= 0; i
< adapter
->priv_num
; ++i
) {
596 head
= &adapter
->bss_prio_tbl
[i
].bss_prio_head
;
597 lock
= &adapter
->bss_prio_tbl
[i
].bss_prio_lock
;
598 dev_dbg(adapter
->dev
, "info: delete BSS priority table,"
599 " bss_type = %d, bss_num = %d, i = %d,"
601 priv
->bss_type
, priv
->bss_num
, i
, head
);
604 spin_lock_irqsave(lock
, flags
);
605 if (list_empty(head
)) {
606 spin_unlock_irqrestore(lock
, flags
);
609 list_for_each_entry_safe(bssprio_node
, tmp_node
, head
,
611 if (bssprio_node
->priv
== priv
) {
612 dev_dbg(adapter
->dev
, "info: Delete "
613 "node %p, next = %p\n",
614 bssprio_node
, tmp_node
);
615 list_del(&bssprio_node
->list
);
619 spin_unlock_irqrestore(lock
, flags
);
625 * This function frees the private structure, including cleans
626 * up the TX and RX queues and frees the BSS priority tables.
628 void mwifiex_free_priv(struct mwifiex_private
*priv
)
630 mwifiex_clean_txrx(priv
);
631 mwifiex_delete_bss_prio_tbl(priv
);
632 mwifiex_free_curr_bcn(priv
);
636 * This function is used to shutdown the driver.
638 * The following operations are performed sequentially -
639 * - Check if already shut down
640 * - Make sure the main process has stopped
641 * - Clean up the Tx and Rx queues
642 * - Delete BSS priority tables
644 * - Notify completion
647 mwifiex_shutdown_drv(struct mwifiex_adapter
*adapter
)
649 int ret
= -EINPROGRESS
;
650 struct mwifiex_private
*priv
;
655 /* mwifiex already shutdown */
656 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_NOT_READY
)
659 adapter
->hw_status
= MWIFIEX_HW_STATUS_CLOSING
;
660 /* wait for mwifiex_process to complete */
661 if (adapter
->mwifiex_processing
) {
662 dev_warn(adapter
->dev
, "main process is still running\n");
666 /* cancel current command */
667 if (adapter
->curr_cmd
) {
668 dev_warn(adapter
->dev
, "curr_cmd is still in processing\n");
669 del_timer_sync(&adapter
->cmd_timer
);
670 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
671 adapter
->curr_cmd
= NULL
;
674 /* shut down mwifiex */
675 dev_dbg(adapter
->dev
, "info: shutdown mwifiex...\n");
677 /* Clean up Tx/Rx queues and delete BSS priority table */
678 for (i
= 0; i
< adapter
->priv_num
; i
++) {
679 if (adapter
->priv
[i
]) {
680 priv
= adapter
->priv
[i
];
682 mwifiex_clean_auto_tdls(priv
);
683 mwifiex_abort_cac(priv
);
684 mwifiex_clean_txrx(priv
);
685 mwifiex_delete_bss_prio_tbl(priv
);
689 atomic_set(&adapter
->tx_queued
, 0);
690 while ((skb
= skb_dequeue(&adapter
->tx_data_q
)))
691 mwifiex_write_data_complete(adapter
, skb
, 0, 0);
693 spin_lock_irqsave(&adapter
->rx_proc_lock
, flags
);
695 while ((skb
= skb_dequeue(&adapter
->rx_data_q
))) {
696 struct mwifiex_rxinfo
*rx_info
= MWIFIEX_SKB_RXCB(skb
);
698 atomic_dec(&adapter
->rx_pending
);
699 priv
= adapter
->priv
[rx_info
->bss_num
];
701 priv
->stats
.rx_dropped
++;
703 dev_kfree_skb_any(skb
);
706 spin_unlock_irqrestore(&adapter
->rx_proc_lock
, flags
);
708 spin_lock(&adapter
->mwifiex_lock
);
710 mwifiex_adapter_cleanup(adapter
);
712 spin_unlock(&adapter
->mwifiex_lock
);
714 /* Notify completion */
715 ret
= mwifiex_shutdown_fw_complete(adapter
);
721 * This function downloads the firmware to the card.
723 * The actual download is preceded by two sanity checks -
724 * - Check if firmware is already running
725 * - Check if the interface is the winner to download the firmware
727 * ...and followed by another -
728 * - Check if the firmware is downloaded successfully
730 * After download is successfully completed, the host interrupts are enabled.
732 int mwifiex_dnld_fw(struct mwifiex_adapter
*adapter
,
733 struct mwifiex_fw_image
*pmfw
)
738 if (adapter
->if_ops
.check_fw_status
) {
741 /* check if firmware is already running */
742 ret
= adapter
->if_ops
.check_fw_status(adapter
, poll_num
);
744 dev_notice(adapter
->dev
,
745 "WLAN FW already running! Skip FW dnld\n");
749 poll_num
= MAX_FIRMWARE_POLL_TRIES
;
751 /* check if we are the winner for downloading FW */
752 if (!adapter
->winner
) {
753 dev_notice(adapter
->dev
,
754 "FW already running! Skip FW dnld\n");
760 /* Download firmware with helper */
761 ret
= adapter
->if_ops
.prog_fw(adapter
, pmfw
);
763 dev_err(adapter
->dev
, "prog_fw failed ret=%#x\n", ret
);
769 /* Check if the firmware is downloaded successfully or not */
770 ret
= adapter
->if_ops
.check_fw_status(adapter
, poll_num
);
772 dev_err(adapter
->dev
, "FW failed to be active in time\n");