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ath6kl: Allow enabling of P2P support
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / init.c
CommitLineData
bdcd8170
KV		 1
2/*
3 * Copyright (c) 2011 Atheros Communications Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <linux/mmc/sdio_func.h>
19#include "core.h"
20#include "cfg80211.h"
21#include "target.h"
22#include "debug.h"
23#include "hif-ops.h"
24
25unsigned int debug_mask;
003353b0 26static unsigned int testmode;
bdcd8170
KV		 27
28module_param(debug_mask, uint, 0644);
003353b0 29module_param(testmode, uint, 0644);
bdcd8170
KV		 30
31/*
32 * Include definitions here that can be used to tune the WLAN module
33 * behavior. Different customers can tune the behavior as per their needs,
34 * here.
35 */
36
37/*
38 * This configuration item enable/disable keepalive support.
39 * Keepalive support: In the absence of any data traffic to AP, null
40 * frames will be sent to the AP at periodic interval, to keep the association
41 * active. This configuration item defines the periodic interval.
42 * Use value of zero to disable keepalive support
43 * Default: 60 seconds
44 */
45#define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
46
47/*
48 * This configuration item sets the value of disconnect timeout
49 * Firmware delays sending the disconnec event to the host for this
50 * timeout after is gets disconnected from the current AP.
51 * If the firmware successly roams within the disconnect timeout
52 * it sends a new connect event
53 */
54#define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
55
56#define CONFIG_AR600x_DEBUG_UART_TX_PIN 8
57
58enum addr_type {
59 DATASET_PATCH_ADDR,
60 APP_LOAD_ADDR,
61 APP_START_OVERRIDE_ADDR,
62};
63
64#define ATH6KL_DATA_OFFSET 64
65struct sk_buff *ath6kl_buf_alloc(int size)
66{
67 struct sk_buff *skb;
68 u16 reserved;
69
70 /* Add chacheline space at front and back of buffer */
71 reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
1df94a85 72 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
bdcd8170
KV		 73 skb = dev_alloc_skb(size + reserved);
74
75 if (skb)
76 skb_reserve(skb, reserved - L1_CACHE_BYTES);
77 return skb;
78}
79
80void ath6kl_init_profile_info(struct ath6kl *ar)
81{
82 ar->ssid_len = 0;
83 memset(ar->ssid, 0, sizeof(ar->ssid));
84
85 ar->dot11_auth_mode = OPEN_AUTH;
86 ar->auth_mode = NONE_AUTH;
87 ar->prwise_crypto = NONE_CRYPT;
88 ar->prwise_crypto_len = 0;
89 ar->grp_crypto = NONE_CRYPT;
38acde3c 90 ar->grp_crypto_len = 0;
bdcd8170
KV		 91 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list));
92 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
93 memset(ar->bssid, 0, sizeof(ar->bssid));
94 ar->bss_ch = 0;
95 ar->nw_type = ar->next_mode = INFRA_NETWORK;
96}
97
98static u8 ath6kl_get_fw_iftype(struct ath6kl *ar)
99{
100 switch (ar->nw_type) {
101 case INFRA_NETWORK:
102 return HI_OPTION_FW_MODE_BSS_STA;
103 case ADHOC_NETWORK:
104 return HI_OPTION_FW_MODE_IBSS;
105 case AP_NETWORK:
106 return HI_OPTION_FW_MODE_AP;
107 default:
108 ath6kl_err("Unsupported interface type :%d\n", ar->nw_type);
109 return 0xff;
110 }
111}
112
bdcd8170
KV		 113static int ath6kl_set_host_app_area(struct ath6kl *ar)
114{
115 u32 address, data;
116 struct host_app_area host_app_area;
117
118 /* Fetch the address of the host_app_area_s
119 * instance in the host interest area */
120 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
31024d99 121 address = TARG_VTOP(ar->target_type, address);
bdcd8170 122
addb44be 123 if (ath6kl_diag_read32(ar, address, &data))
bdcd8170
KV		 124 return -EIO;
125
31024d99 126 address = TARG_VTOP(ar->target_type, data);
bdcd8170 127 host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION;
addb44be
KV		 128 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
129 sizeof(struct host_app_area)))
bdcd8170
KV		 130 return -EIO;
131
132 return 0;
133}
134
135static inline void set_ac2_ep_map(struct ath6kl *ar,
136 u8 ac,
137 enum htc_endpoint_id ep)
138{
139 ar->ac2ep_map[ac] = ep;
140 ar->ep2ac_map[ep] = ac;
141}
142
143/* connect to a service */
144static int ath6kl_connectservice(struct ath6kl *ar,
145 struct htc_service_connect_req *con_req,
146 char *desc)
147{
148 int status;
149 struct htc_service_connect_resp response;
150
151 memset(&response, 0, sizeof(response));
152
ad226ec2 153 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
bdcd8170
KV		 154 if (status) {
155 ath6kl_err("failed to connect to %s service status:%d\n",
156 desc, status);
157 return status;
158 }
159
160 switch (con_req->svc_id) {
161 case WMI_CONTROL_SVC:
162 if (test_bit(WMI_ENABLED, &ar->flag))
163 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
164 ar->ctrl_ep = response.endpoint;
165 break;
166 case WMI_DATA_BE_SVC:
167 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
168 break;
169 case WMI_DATA_BK_SVC:
170 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
171 break;
172 case WMI_DATA_VI_SVC:
173 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
174 break;
175 case WMI_DATA_VO_SVC:
176 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
177 break;
178 default:
179 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
180 return -EINVAL;
181 }
182
183 return 0;
184}
185
186static int ath6kl_init_service_ep(struct ath6kl *ar)
187{
188 struct htc_service_connect_req connect;
189
190 memset(&connect, 0, sizeof(connect));
191
192 /* these fields are the same for all service endpoints */
193 connect.ep_cb.rx = ath6kl_rx;
194 connect.ep_cb.rx_refill = ath6kl_rx_refill;
195 connect.ep_cb.tx_full = ath6kl_tx_queue_full;
196
197 /*
198 * Set the max queue depth so that our ath6kl_tx_queue_full handler
199 * gets called.
200 */
201 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
202 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
203 if (!connect.ep_cb.rx_refill_thresh)
204 connect.ep_cb.rx_refill_thresh++;
205
206 /* connect to control service */
207 connect.svc_id = WMI_CONTROL_SVC;
208 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
209 return -EIO;
210
211 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
212
213 /*
214 * Limit the HTC message size on the send path, although e can
215 * receive A-MSDU frames of 4K, we will only send ethernet-sized
216 * (802.3) frames on the send path.
217 */
218 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
219
220 /*
221 * To reduce the amount of committed memory for larger A_MSDU
222 * frames, use the recv-alloc threshold mechanism for larger
223 * packets.
224 */
225 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
226 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
227
228 /*
229 * For the remaining data services set the connection flag to
230 * reduce dribbling, if configured to do so.
231 */
232 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
233 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
234 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
235
236 connect.svc_id = WMI_DATA_BE_SVC;
237
238 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
239 return -EIO;
240
241 /* connect to back-ground map this to WMI LOW_PRI */
242 connect.svc_id = WMI_DATA_BK_SVC;
243 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
244 return -EIO;
245
246 /* connect to Video service, map this to to HI PRI */
247 connect.svc_id = WMI_DATA_VI_SVC;
248 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
249 return -EIO;
250
251 /*
252 * Connect to VO service, this is currently not mapped to a WMI
253 * priority stream due to historical reasons. WMI originally
254 * defined 3 priorities over 3 mailboxes We can change this when
255 * WMI is reworked so that priorities are not dependent on
256 * mailboxes.
257 */
258 connect.svc_id = WMI_DATA_VO_SVC;
259 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
260 return -EIO;
261
262 return 0;
263}
264
265static void ath6kl_init_control_info(struct ath6kl *ar)
266{
267 u8 ctr;
268
269 clear_bit(WMI_ENABLED, &ar->flag);
270 ath6kl_init_profile_info(ar);
271 ar->def_txkey_index = 0;
272 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list));
273 ar->ch_hint = 0;
274 ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL;
275 ar->listen_intvl_b = 0;
276 ar->tx_pwr = 0;
277 clear_bit(SKIP_SCAN, &ar->flag);
278 set_bit(WMM_ENABLED, &ar->flag);
279 ar->intra_bss = 1;
280 memset(&ar->sc_params, 0, sizeof(ar->sc_params));
281 ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT;
282 ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS;
e5090444 283 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD;
bdcd8170
KV		 284
285 memset((u8 *)ar->sta_list, 0,
286 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta));
287
288 spin_lock_init(&ar->mcastpsq_lock);
289
290 /* Init the PS queues */
291 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
292 spin_lock_init(&ar->sta_list[ctr].psq_lock);
293 skb_queue_head_init(&ar->sta_list[ctr].psq);
294 }
295
296 skb_queue_head_init(&ar->mcastpsq);
297
298 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3);
299}
300
301/*
302 * Set HTC/Mbox operational parameters, this can only be called when the
303 * target is in the BMI phase.
304 */
305static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
306 u8 htc_ctrl_buf)
307{
308 int status;
309 u32 blk_size;
310
311 blk_size = ar->mbox_info.block_size;
312
313 if (htc_ctrl_buf)
314 blk_size |= ((u32)htc_ctrl_buf) << 16;
315
316 /* set the host interest area for the block size */
317 status = ath6kl_bmi_write(ar,
318 ath6kl_get_hi_item_addr(ar,
319 HI_ITEM(hi_mbox_io_block_sz)),
320 (u8 *)&blk_size,
321 4);
322 if (status) {
323 ath6kl_err("bmi_write_memory for IO block size failed\n");
324 goto out;
325 }
326
327 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
328 blk_size,
329 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
330
331 if (mbox_isr_yield_val) {
332 /* set the host interest area for the mbox ISR yield limit */
333 status = ath6kl_bmi_write(ar,
334 ath6kl_get_hi_item_addr(ar,
335 HI_ITEM(hi_mbox_isr_yield_limit)),
336 (u8 *)&mbox_isr_yield_val,
337 4);
338 if (status) {
339 ath6kl_err("bmi_write_memory for yield limit failed\n");
340 goto out;
341 }
342 }
343
344out:
345 return status;
346}
347
348#define REG_DUMP_COUNT_AR6003 60
349#define REGISTER_DUMP_LEN_MAX 60
350
351static void ath6kl_dump_target_assert_info(struct ath6kl *ar)
352{
353 u32 address;
354 u32 regdump_loc = 0;
355 int status;
356 u32 regdump_val[REGISTER_DUMP_LEN_MAX];
357 u32 i;
358
359 if (ar->target_type != TARGET_TYPE_AR6003)
360 return;
361
362 /* the reg dump pointer is copied to the host interest area */
363 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state));
31024d99 364 address = TARG_VTOP(ar->target_type, address);
bdcd8170
KV		 365
366 /* read RAM location through diagnostic window */
addb44be 367 status = ath6kl_diag_read32(ar, address, &regdump_loc);
bdcd8170
KV		 368
369 if (status || !regdump_loc) {
370 ath6kl_err("failed to get ptr to register dump area\n");
371 return;
372 }
373
374 ath6kl_dbg(ATH6KL_DBG_TRC, "location of register dump data: 0x%X\n",
375 regdump_loc);
31024d99 376 regdump_loc = TARG_VTOP(ar->target_type, regdump_loc);
bdcd8170
KV		 377
378 /* fetch register dump data */
addb44be
KV		 379 status = ath6kl_diag_read(ar, regdump_loc, (u8 *)&regdump_val[0],
380 REG_DUMP_COUNT_AR6003 * (sizeof(u32)));
bdcd8170
KV		 381
382 if (status) {
383 ath6kl_err("failed to get register dump\n");
384 return;
385 }
386 ath6kl_dbg(ATH6KL_DBG_TRC, "Register Dump:\n");
387
388 for (i = 0; i < REG_DUMP_COUNT_AR6003; i++)
389 ath6kl_dbg(ATH6KL_DBG_TRC, " %d : 0x%8.8X\n",
390 i, regdump_val[i]);
391
392}
393
394void ath6kl_target_failure(struct ath6kl *ar)
395{
396 ath6kl_err("target asserted\n");
397
398 /* try dumping target assertion information (if any) */
399 ath6kl_dump_target_assert_info(ar);
400
401}
402
403static int ath6kl_target_config_wlan_params(struct ath6kl *ar)
404{
405 int status = 0;
4dea08e0 406 int ret;
bdcd8170
KV		 407
408 /*
409 * Configure the device for rx dot11 header rules. "0,0" are the
410 * default values. Required if checksum offload is needed. Set
411 * RxMetaVersion to 2.
412 */
413 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
414 ar->rx_meta_ver, 0, 0)) {
415 ath6kl_err("unable to set the rx frame format\n");
416 status = -EIO;
417 }
418
419 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
420 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, 0, 1, 0, 0, 1,
421 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
422 ath6kl_err("unable to set power save fail event policy\n");
423 status = -EIO;
424 }
425
426 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
427 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, 0,
428 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
429 ath6kl_err("unable to set barker preamble policy\n");
430 status = -EIO;
431 }
432
433 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi,
434 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
435 ath6kl_err("unable to set keep alive interval\n");
436 status = -EIO;
437 }
438
439 if (ath6kl_wmi_disctimeout_cmd(ar->wmi,
440 WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
441 ath6kl_err("unable to set disconnect timeout\n");
442 status = -EIO;
443 }
444
445 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
446 if (ath6kl_wmi_set_wmm_txop(ar->wmi, WMI_TXOP_DISABLED)) {
447 ath6kl_err("unable to set txop bursting\n");
448 status = -EIO;
449 }
450
6bbc7c35
JM		 451 if (ar->p2p) {
452 ret = ath6kl_wmi_info_req_cmd(ar->wmi,
453 P2P_FLAG_CAPABILITIES_REQ |
454 P2P_FLAG_MACADDR_REQ |
455 P2P_FLAG_HMODEL_REQ);
456 if (ret) {
457 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
458 "capabilities (%d) - assuming P2P not "
459 "supported\n", ret);
460 ar->p2p = 0;
461 }
462 }
463
464 if (ar->p2p) {
465 /* Enable Probe Request reporting for P2P */
466 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, true);
467 if (ret) {
468 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
469 "Request reporting (%d)\n", ret);
470 }
4dea08e0
JM		 471 }
472
bdcd8170
KV		 473 return status;
474}
475
476int ath6kl_configure_target(struct ath6kl *ar)
477{
478 u32 param, ram_reserved_size;
479 u8 fw_iftype;
480
481 fw_iftype = ath6kl_get_fw_iftype(ar);
482 if (fw_iftype == 0xff)
483 return -EINVAL;
484
485 /* Tell target which HTC version it is used*/
486 param = HTC_PROTOCOL_VERSION;
487 if (ath6kl_bmi_write(ar,
488 ath6kl_get_hi_item_addr(ar,
489 HI_ITEM(hi_app_host_interest)),
490 (u8 *)&param, 4) != 0) {
491 ath6kl_err("bmi_write_memory for htc version failed\n");
492 return -EIO;
493 }
494
495 /* set the firmware mode to STA/IBSS/AP */
496 param = 0;
497
498 if (ath6kl_bmi_read(ar,
499 ath6kl_get_hi_item_addr(ar,
500 HI_ITEM(hi_option_flag)),
501 (u8 *)&param, 4) != 0) {
502 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
503 return -EIO;
504 }
505
506 param |= (1 << HI_OPTION_NUM_DEV_SHIFT);
507 param |= (fw_iftype << HI_OPTION_FW_MODE_SHIFT);
6bbc7c35
JM		 508 if (ar->p2p && fw_iftype == HI_OPTION_FW_MODE_BSS_STA) {
509 param |= HI_OPTION_FW_SUBMODE_P2PDEV <<
510 HI_OPTION_FW_SUBMODE_SHIFT;
511 }
bdcd8170
KV		 512 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
513 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
514
515 if (ath6kl_bmi_write(ar,
516 ath6kl_get_hi_item_addr(ar,
517 HI_ITEM(hi_option_flag)),
518 (u8 *)&param,
519 4) != 0) {
520 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
521 return -EIO;
522 }
523
524 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
525
526 /*
527 * Hardcode the address use for the extended board data
528 * Ideally this should be pre-allocate by the OS at boot time
529 * But since it is a new feature and board data is loaded
530 * at init time, we have to workaround this from host.
531 * It is difficult to patch the firmware boot code,
532 * but possible in theory.
533 */
534
31024d99
KF		 535 if (ar->target_type == TARGET_TYPE_AR6003 ||
536 ar->target_type == TARGET_TYPE_AR6004) {
bdcd8170
KV		 537 if (ar->version.target_ver == AR6003_REV2_VERSION) {
538 param = AR6003_REV2_BOARD_EXT_DATA_ADDRESS;
539 ram_reserved_size = AR6003_REV2_RAM_RESERVE_SIZE;
31024d99
KF		 540 } else if (ar->version.target_ver == AR6004_REV1_VERSION) {
541 param = AR6004_REV1_BOARD_EXT_DATA_ADDRESS;
542 ram_reserved_size = AR6004_REV1_RAM_RESERVE_SIZE;
bdcd8170
KV		 543 } else {
544 param = AR6003_REV3_BOARD_EXT_DATA_ADDRESS;
545 ram_reserved_size = AR6003_REV3_RAM_RESERVE_SIZE;
546 }
547
548 if (ath6kl_bmi_write(ar,
549 ath6kl_get_hi_item_addr(ar,
550 HI_ITEM(hi_board_ext_data)),
551 (u8 *)&param, 4) != 0) {
552 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
553 return -EIO;
554 }
555 if (ath6kl_bmi_write(ar,
556 ath6kl_get_hi_item_addr(ar,
557 HI_ITEM(hi_end_ram_reserve_sz)),
558 (u8 *)&ram_reserved_size, 4) != 0) {
559 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
560 return -EIO;
561 }
562 }
563
564 /* set the block size for the target */
565 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
566 /* use default number of control buffers */
567 return -EIO;
568
569 return 0;
570}
571
572struct ath6kl *ath6kl_core_alloc(struct device *sdev)
573{
574 struct net_device *dev;
575 struct ath6kl *ar;
576 struct wireless_dev *wdev;
577
578 wdev = ath6kl_cfg80211_init(sdev);
579 if (!wdev) {
580 ath6kl_err("ath6kl_cfg80211_init failed\n");
581 return NULL;
582 }
583
584 ar = wdev_priv(wdev);
585 ar->dev = sdev;
586 ar->wdev = wdev;
587 wdev->iftype = NL80211_IFTYPE_STATION;
588
d999ba3e
VT		 589 if (ath6kl_debug_init(ar)) {
590 ath6kl_err("Failed to initialize debugfs\n");
591 ath6kl_cfg80211_deinit(ar);
592 return NULL;
593 }
594
bdcd8170
KV		 595 dev = alloc_netdev(0, "wlan%d", ether_setup);
596 if (!dev) {
597 ath6kl_err("no memory for network device instance\n");
598 ath6kl_cfg80211_deinit(ar);
599 return NULL;
600 }
601
602 dev->ieee80211_ptr = wdev;
603 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
604 wdev->netdev = dev;
605 ar->sme_state = SME_DISCONNECTED;
606 ar->auto_auth_stage = AUTH_IDLE;
607
608 init_netdev(dev);
609
610 ar->net_dev = dev;
575b5f34 611 set_bit(WLAN_ENABLED, &ar->flag);
bdcd8170
KV		 612
613 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
614
615 spin_lock_init(&ar->lock);
616
617 ath6kl_init_control_info(ar);
618 init_waitqueue_head(&ar->event_wq);
619 sema_init(&ar->sem, 1);
620 clear_bit(DESTROY_IN_PROGRESS, &ar->flag);
621
622 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue);
623
624 setup_timer(&ar->disconnect_timer, disconnect_timer_handler,
625 (unsigned long) dev);
626
627 return ar;
628}
629
630int ath6kl_unavail_ev(struct ath6kl *ar)
631{
632 ath6kl_destroy(ar->net_dev, 1);
633
634 return 0;
635}
636
637/* firmware upload */
638static u32 ath6kl_get_load_address(u32 target_ver, enum addr_type type)
639{
640 WARN_ON(target_ver != AR6003_REV2_VERSION &&
31024d99
KF		 641 target_ver != AR6003_REV3_VERSION &&
642 target_ver != AR6004_REV1_VERSION);
bdcd8170
KV		 643
644 switch (type) {
645 case DATASET_PATCH_ADDR:
646 return (target_ver == AR6003_REV2_VERSION) ?
647 AR6003_REV2_DATASET_PATCH_ADDRESS :
648 AR6003_REV3_DATASET_PATCH_ADDRESS;
649 case APP_LOAD_ADDR:
650 return (target_ver == AR6003_REV2_VERSION) ?
651 AR6003_REV2_APP_LOAD_ADDRESS :
652 0x1234;
653 case APP_START_OVERRIDE_ADDR:
654 return (target_ver == AR6003_REV2_VERSION) ?
655 AR6003_REV2_APP_START_OVERRIDE :
656 AR6003_REV3_APP_START_OVERRIDE;
657 default:
658 return 0;
659 }
660}
661
662static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
663 u8 **fw, size_t *fw_len)
664{
665 const struct firmware *fw_entry;
666 int ret;
667
668 ret = request_firmware(&fw_entry, filename, ar->dev);
669 if (ret)
670 return ret;
671
672 *fw_len = fw_entry->size;
673 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
674
675 if (*fw == NULL)
676 ret = -ENOMEM;
677
678 release_firmware(fw_entry);
679
680 return ret;
681}
682
683static int ath6kl_fetch_board_file(struct ath6kl *ar)
684{
685 const char *filename;
686 int ret;
687
688 switch (ar->version.target_ver) {
689 case AR6003_REV2_VERSION:
690 filename = AR6003_REV2_BOARD_DATA_FILE;
691 break;
31024d99
KF		 692 case AR6004_REV1_VERSION:
693 filename = AR6004_REV1_BOARD_DATA_FILE;
694 break;
bdcd8170
KV		 695 default:
696 filename = AR6003_REV3_BOARD_DATA_FILE;
697 break;
698 }
699
700 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
701 &ar->fw_board_len);
702 if (ret == 0) {
703 /* managed to get proper board file */
704 return 0;
705 }
706
707 /* there was no proper board file, try to use default instead */
708 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
709 filename, ret);
710
711 switch (ar->version.target_ver) {
712 case AR6003_REV2_VERSION:
713 filename = AR6003_REV2_DEFAULT_BOARD_DATA_FILE;
714 break;
31024d99
KF		 715 case AR6004_REV1_VERSION:
716 filename = AR6004_REV1_DEFAULT_BOARD_DATA_FILE;
717 break;
bdcd8170
KV		 718 default:
719 filename = AR6003_REV3_DEFAULT_BOARD_DATA_FILE;
720 break;
721 }
722
723 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
724 &ar->fw_board_len);
725 if (ret) {
726 ath6kl_err("Failed to get default board file %s: %d\n",
727 filename, ret);
728 return ret;
729 }
730
731 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
732 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
733
734 return 0;
735}
736
737
738static int ath6kl_upload_board_file(struct ath6kl *ar)
739{
740 u32 board_address, board_ext_address, param;
31024d99 741 u32 board_data_size, board_ext_data_size;
bdcd8170
KV		 742 int ret;
743
744 if (ar->fw_board == NULL) {
745 ret = ath6kl_fetch_board_file(ar);
746 if (ret)
747 return ret;
748 }
749
31024d99
KF		 750 /*
751 * Determine where in Target RAM to write Board Data.
752 * For AR6004, host determine Target RAM address for
753 * writing board data.
754 */
755 if (ar->target_type == TARGET_TYPE_AR6004) {
756 board_address = AR6004_REV1_BOARD_DATA_ADDRESS;
757 ath6kl_bmi_write(ar,
758 ath6kl_get_hi_item_addr(ar,
759 HI_ITEM(hi_board_data)),
760 (u8 *) &board_address, 4);
761 } else {
762 ath6kl_bmi_read(ar,
763 ath6kl_get_hi_item_addr(ar,
764 HI_ITEM(hi_board_data)),
765 (u8 *) &board_address, 4);
766 }
767
bdcd8170
KV		 768 ath6kl_dbg(ATH6KL_DBG_TRC, "board data download addr: 0x%x\n",
769 board_address);
770
771 /* determine where in target ram to write extended board data */
772 ath6kl_bmi_read(ar,
773 ath6kl_get_hi_item_addr(ar,
774 HI_ITEM(hi_board_ext_data)),
775 (u8 *) &board_ext_address, 4);
776
777 ath6kl_dbg(ATH6KL_DBG_TRC, "board file download addr: 0x%x\n",
778 board_ext_address);
779
780 if (board_ext_address == 0) {
781 ath6kl_err("Failed to get board file target address.\n");
782 return -EINVAL;
783 }
784
31024d99
KF		 785 switch (ar->target_type) {
786 case TARGET_TYPE_AR6003:
787 board_data_size = AR6003_BOARD_DATA_SZ;
788 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
789 break;
790 case TARGET_TYPE_AR6004:
791 board_data_size = AR6004_BOARD_DATA_SZ;
792 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
793 break;
794 default:
795 WARN_ON(1);
796 return -EINVAL;
797 break;
798 }
799
800 if (ar->fw_board_len == (board_data_size +
801 board_ext_data_size)) {
802
bdcd8170
KV		 803 /* write extended board data */
804 ret = ath6kl_bmi_write(ar, board_ext_address,
31024d99
KF		 805 ar->fw_board + board_data_size,
806 board_ext_data_size);
bdcd8170
KV		 807 if (ret) {
808 ath6kl_err("Failed to write extended board data: %d\n",
809 ret);
810 return ret;
811 }
812
813 /* record that extended board data is initialized */
31024d99
KF		 814 param = (board_ext_data_size << 16) | 1;
815
bdcd8170
KV		 816 ath6kl_bmi_write(ar,
817 ath6kl_get_hi_item_addr(ar,
818 HI_ITEM(hi_board_ext_data_config)),
819 (unsigned char *) &param, 4);
820 }
821
31024d99 822 if (ar->fw_board_len < board_data_size) {
bdcd8170
KV		 823 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
824 ret = -EINVAL;
825 return ret;
826 }
827
828 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
31024d99 829 board_data_size);
bdcd8170
KV		 830
831 if (ret) {
832 ath6kl_err("Board file bmi write failed: %d\n", ret);
833 return ret;
834 }
835
836 /* record the fact that Board Data IS initialized */
837 param = 1;
838 ath6kl_bmi_write(ar,
839 ath6kl_get_hi_item_addr(ar,
840 HI_ITEM(hi_board_data_initialized)),
841 (u8 *)&param, 4);
842
843 return ret;
844}
845
846static int ath6kl_upload_otp(struct ath6kl *ar)
847{
848 const char *filename;
849 u32 address, param;
850 int ret;
851
852 switch (ar->version.target_ver) {
853 case AR6003_REV2_VERSION:
854 filename = AR6003_REV2_OTP_FILE;
855 break;
31024d99
KF		 856 case AR6004_REV1_VERSION:
857 ath6kl_dbg(ATH6KL_DBG_TRC, "AR6004 doesn't need OTP file\n");
858 return 0;
859 break;
bdcd8170
KV		 860 default:
861 filename = AR6003_REV3_OTP_FILE;
862 break;
863 }
864
865 if (ar->fw_otp == NULL) {
866 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
867 &ar->fw_otp_len);
868 if (ret) {
869 ath6kl_err("Failed to get OTP file %s: %d\n",
870 filename, ret);
871 return ret;
872 }
873 }
874
875 address = ath6kl_get_load_address(ar->version.target_ver,
876 APP_LOAD_ADDR);
877
878 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
879 ar->fw_otp_len);
880 if (ret) {
881 ath6kl_err("Failed to upload OTP file: %d\n", ret);
882 return ret;
883 }
884
885 /* execute the OTP code */
886 param = 0;
887 address = ath6kl_get_load_address(ar->version.target_ver,
888 APP_START_OVERRIDE_ADDR);
889 ath6kl_bmi_execute(ar, address, &param);
890
891 return ret;
892}
893
894static int ath6kl_upload_firmware(struct ath6kl *ar)
895{
896 const char *filename;
897 u32 address;
898 int ret;
899
003353b0
KV		 900 if (testmode) {
901 switch (ar->version.target_ver) {
902 case AR6003_REV2_VERSION:
903 filename = AR6003_REV2_TCMD_FIRMWARE_FILE;
904 break;
905 case AR6003_REV3_VERSION:
906 filename = AR6003_REV3_TCMD_FIRMWARE_FILE;
907 break;
908 case AR6004_REV1_VERSION:
909 ath6kl_warn("testmode not supported with ar6004\n");
910 return -EOPNOTSUPP;
911 default:
912 ath6kl_warn("unknown target version: 0x%x\n",
913 ar->version.target_ver);
914 return -EINVAL;
915 }
916
917 set_bit(TESTMODE, &ar->flag);
918
919 goto get_fw;
920 }
921
bdcd8170
KV		 922 switch (ar->version.target_ver) {
923 case AR6003_REV2_VERSION:
924 filename = AR6003_REV2_FIRMWARE_FILE;
925 break;
31024d99
KF		 926 case AR6004_REV1_VERSION:
927 filename = AR6004_REV1_FIRMWARE_FILE;
928 break;
bdcd8170
KV		 929 default:
930 filename = AR6003_REV3_FIRMWARE_FILE;
931 break;
932 }
933
003353b0
KV		 934get_fw:
935
bdcd8170
KV		 936 if (ar->fw == NULL) {
937 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
938 if (ret) {
939 ath6kl_err("Failed to get firmware file %s: %d\n",
940 filename, ret);
941 return ret;
942 }
943 }
944
945 address = ath6kl_get_load_address(ar->version.target_ver,
946 APP_LOAD_ADDR);
947
948 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
949
950 if (ret) {
951 ath6kl_err("Failed to write firmware: %d\n", ret);
952 return ret;
953 }
954
31024d99
KF		 955 /*
956 * Set starting address for firmware
957 * Don't need to setup app_start override addr on AR6004
958 */
959 if (ar->target_type != TARGET_TYPE_AR6004) {
960 address = ath6kl_get_load_address(ar->version.target_ver,
961 APP_START_OVERRIDE_ADDR);
962 ath6kl_bmi_set_app_start(ar, address);
963 }
bdcd8170
KV		 964 return ret;
965}
966
967static int ath6kl_upload_patch(struct ath6kl *ar)
968{
969 const char *filename;
970 u32 address, param;
971 int ret;
972
973 switch (ar->version.target_ver) {
974 case AR6003_REV2_VERSION:
975 filename = AR6003_REV2_PATCH_FILE;
976 break;
31024d99
KF		 977 case AR6004_REV1_VERSION:
978 /* FIXME: implement for AR6004 */
979 return 0;
980 break;
bdcd8170
KV		 981 default:
982 filename = AR6003_REV3_PATCH_FILE;
983 break;
984 }
985
986 if (ar->fw_patch == NULL) {
987 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
988 &ar->fw_patch_len);
989 if (ret) {
990 ath6kl_err("Failed to get patch file %s: %d\n",
991 filename, ret);
992 return ret;
993 }
994 }
995
996 address = ath6kl_get_load_address(ar->version.target_ver,
997 DATASET_PATCH_ADDR);
998
999 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1000 if (ret) {
1001 ath6kl_err("Failed to write patch file: %d\n", ret);
1002 return ret;
1003 }
1004
1005 param = address;
1006 ath6kl_bmi_write(ar,
1007 ath6kl_get_hi_item_addr(ar,
1008 HI_ITEM(hi_dset_list_head)),
1009 (unsigned char *) &param, 4);
1010
1011 return 0;
1012}
1013
1014static int ath6kl_init_upload(struct ath6kl *ar)
1015{
1016 u32 param, options, sleep, address;
1017 int status = 0;
1018
31024d99
KF		 1019 if (ar->target_type != TARGET_TYPE_AR6003 &&
1020 ar->target_type != TARGET_TYPE_AR6004)
bdcd8170
KV		 1021 return -EINVAL;
1022
1023 /* temporarily disable system sleep */
1024 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1025 status = ath6kl_bmi_reg_read(ar, address, &param);
1026 if (status)
1027 return status;
1028
1029 options = param;
1030
1031 param |= ATH6KL_OPTION_SLEEP_DISABLE;
1032 status = ath6kl_bmi_reg_write(ar, address, param);
1033 if (status)
1034 return status;
1035
1036 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1037 status = ath6kl_bmi_reg_read(ar, address, &param);
1038 if (status)
1039 return status;
1040
1041 sleep = param;
1042
1043 param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1044 status = ath6kl_bmi_reg_write(ar, address, param);
1045 if (status)
1046 return status;
1047
1048 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1049 options, sleep);
1050
1051 /* program analog PLL register */
31024d99
KF		 1052 /* no need to control 40/44MHz clock on AR6004 */
1053 if (ar->target_type != TARGET_TYPE_AR6004) {
1054 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1055 0xF9104001);
bdcd8170 1056
31024d99
KF		 1057 if (status)
1058 return status;
bdcd8170 1059
31024d99
KF		 1060 /* Run at 80/88MHz by default */
1061 param = SM(CPU_CLOCK_STANDARD, 1);
1062
1063 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1064 status = ath6kl_bmi_reg_write(ar, address, param);
1065 if (status)
1066 return status;
1067 }
bdcd8170
KV		 1068
1069 param = 0;
1070 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1071 param = SM(LPO_CAL_ENABLE, 1);
1072 status = ath6kl_bmi_reg_write(ar, address, param);
1073 if (status)
1074 return status;
1075
1076 /* WAR to avoid SDIO CRC err */
1077 if (ar->version.target_ver == AR6003_REV2_VERSION) {
1078 ath6kl_err("temporary war to avoid sdio crc error\n");
1079
1080 param = 0x20;
1081
1082 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1083 status = ath6kl_bmi_reg_write(ar, address, param);
1084 if (status)
1085 return status;
1086
1087 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1088 status = ath6kl_bmi_reg_write(ar, address, param);
1089 if (status)
1090 return status;
1091
1092 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1093 status = ath6kl_bmi_reg_write(ar, address, param);
1094 if (status)
1095 return status;
1096
1097 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1098 status = ath6kl_bmi_reg_write(ar, address, param);
1099 if (status)
1100 return status;
1101 }
1102
1103 /* write EEPROM data to Target RAM */
1104 status = ath6kl_upload_board_file(ar);
1105 if (status)
1106 return status;
1107
1108 /* transfer One time Programmable data */
1109 status = ath6kl_upload_otp(ar);
1110 if (status)
1111 return status;
1112
1113 /* Download Target firmware */
1114 status = ath6kl_upload_firmware(ar);
1115 if (status)
1116 return status;
1117
1118 status = ath6kl_upload_patch(ar);
1119 if (status)
1120 return status;
1121
1122 /* Restore system sleep */
1123 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1124 status = ath6kl_bmi_reg_write(ar, address, sleep);
1125 if (status)
1126 return status;
1127
1128 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1129 param = options | 0x20;
1130 status = ath6kl_bmi_reg_write(ar, address, param);
1131 if (status)
1132 return status;
1133
1134 /* Configure GPIO AR6003 UART */
1135 param = CONFIG_AR600x_DEBUG_UART_TX_PIN;
1136 status = ath6kl_bmi_write(ar,
1137 ath6kl_get_hi_item_addr(ar,
1138 HI_ITEM(hi_dbg_uart_txpin)),
1139 (u8 *)&param, 4);
1140
1141 return status;
1142}
1143
1144static int ath6kl_init(struct net_device *dev)
1145{
1146 struct ath6kl *ar = ath6kl_priv(dev);
1147 int status = 0;
1148 s32 timeleft;
1149
1150 if (!ar)
1151 return -EIO;
1152
1153 /* Do we need to finish the BMI phase */
1154 if (ath6kl_bmi_done(ar)) {
1155 status = -EIO;
1156 goto ath6kl_init_done;
1157 }
1158
1159 /* Indicate that WMI is enabled (although not ready yet) */
1160 set_bit(WMI_ENABLED, &ar->flag);
2865785e 1161 ar->wmi = ath6kl_wmi_init(ar);
bdcd8170
KV		 1162 if (!ar->wmi) {
1163 ath6kl_err("failed to initialize wmi\n");
1164 status = -EIO;
1165 goto ath6kl_init_done;
1166 }
1167
1168 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1169
852bd9d9
VT		 1170 wlan_node_table_init(&ar->scan_table);
1171
bdcd8170
KV		 1172 /*
1173 * The reason we have to wait for the target here is that the
1174 * driver layer has to init BMI in order to set the host block
1175 * size.
1176 */
ad226ec2 1177 if (ath6kl_htc_wait_target(ar->htc_target)) {
bdcd8170 1178 status = -EIO;
852bd9d9 1179 goto err_node_cleanup;
bdcd8170
KV		 1180 }
1181
1182 if (ath6kl_init_service_ep(ar)) {
1183 status = -EIO;
1184 goto err_cleanup_scatter;
1185 }
1186
1187 /* setup access class priority mappings */
1188 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */
1189 ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1190 ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1191 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1192
1193 /* give our connected endpoints some buffers */
1194 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1195 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1196
1197 /* allocate some buffers that handle larger AMSDU frames */
1198 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1199
1200 /* setup credit distribution */
1201 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info);
1202
1203 ath6kl_cookie_init(ar);
1204
1205 /* start HTC */
ad226ec2 1206 status = ath6kl_htc_start(ar->htc_target);
bdcd8170
KV		 1207
1208 if (status) {
1209 ath6kl_cookie_cleanup(ar);
1210 goto err_rxbuf_cleanup;
1211 }
1212
1213 /* Wait for Wmi event to be ready */
1214 timeleft = wait_event_interruptible_timeout(ar->event_wq,
1215 test_bit(WMI_READY,
1216 &ar->flag),
1217 WMI_TIMEOUT);
1218
1219 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1220 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1221 ATH6KL_ABI_VERSION, ar->version.abi_ver);
1222 status = -EIO;
1223 goto err_htc_stop;
1224 }
1225
1226 if (!timeleft || signal_pending(current)) {
1227 ath6kl_err("wmi is not ready or wait was interrupted\n");
1228 status = -EIO;
1229 goto err_htc_stop;
1230 }
1231
1232 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1233
1234 /* communicate the wmi protocol verision to the target */
1235 if ((ath6kl_set_host_app_area(ar)) != 0)
1236 ath6kl_err("unable to set the host app area\n");
1237
1238 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1239 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1240
1241 status = ath6kl_target_config_wlan_params(ar);
1242 if (!status)
1243 goto ath6kl_init_done;
1244
1245err_htc_stop:
ad226ec2 1246 ath6kl_htc_stop(ar->htc_target);
bdcd8170 1247err_rxbuf_cleanup:
ad226ec2 1248 ath6kl_htc_flush_rx_buf(ar->htc_target);
bdcd8170
KV		 1249 ath6kl_cleanup_amsdu_rxbufs(ar);
1250err_cleanup_scatter:
1251 ath6kl_hif_cleanup_scatter(ar);
852bd9d9
VT		 1252err_node_cleanup:
1253 wlan_node_table_cleanup(&ar->scan_table);
bdcd8170
KV		 1254 ath6kl_wmi_shutdown(ar->wmi);
1255 clear_bit(WMI_ENABLED, &ar->flag);
1256 ar->wmi = NULL;
1257
1258ath6kl_init_done:
1259 return status;
1260}
1261
1262int ath6kl_core_init(struct ath6kl *ar)
1263{
1264 int ret = 0;
1265 struct ath6kl_bmi_target_info targ_info;
1266
1267 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1268 if (!ar->ath6kl_wq)
1269 return -ENOMEM;
1270
1271 ret = ath6kl_bmi_init(ar);
1272 if (ret)
1273 goto err_wq;
1274
1275 ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1276 if (ret)
1277 goto err_bmi_cleanup;
1278
1279 ar->version.target_ver = le32_to_cpu(targ_info.version);
1280 ar->target_type = le32_to_cpu(targ_info.type);
1281 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version);
1282
1283 ret = ath6kl_configure_target(ar);
1284 if (ret)
1285 goto err_bmi_cleanup;
1286
ad226ec2 1287 ar->htc_target = ath6kl_htc_create(ar);
bdcd8170
KV		 1288
1289 if (!ar->htc_target) {
1290 ret = -ENOMEM;
1291 goto err_bmi_cleanup;
1292 }
1293
1294 ar->aggr_cntxt = aggr_init(ar->net_dev);
1295 if (!ar->aggr_cntxt) {
1296 ath6kl_err("failed to initialize aggr\n");
1297 ret = -ENOMEM;
1298 goto err_htc_cleanup;
1299 }
1300
1301 ret = ath6kl_init_upload(ar);
1302 if (ret)
1303 goto err_htc_cleanup;
1304
1305 ret = ath6kl_init(ar->net_dev);
1306 if (ret)
1307 goto err_htc_cleanup;
1308
1309 /* This runs the init function if registered */
1310 ret = register_netdev(ar->net_dev);
1311 if (ret) {
1312 ath6kl_err("register_netdev failed\n");
1313 ath6kl_destroy(ar->net_dev, 0);
1314 return ret;
1315 }
1316
1317 set_bit(NETDEV_REGISTERED, &ar->flag);
1318
1319 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1320 __func__, ar->net_dev->name, ar->net_dev, ar);
1321
1322 return ret;
1323
1324err_htc_cleanup:
ad226ec2 1325 ath6kl_htc_cleanup(ar->htc_target);
bdcd8170
KV		 1326err_bmi_cleanup:
1327 ath6kl_bmi_cleanup(ar);
1328err_wq:
1329 destroy_workqueue(ar->ath6kl_wq);
1330 return ret;
1331}
1332
1333void ath6kl_stop_txrx(struct ath6kl *ar)
1334{
1335 struct net_device *ndev = ar->net_dev;
1336
1337 if (!ndev)
1338 return;
1339
1340 set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1341
1342 if (down_interruptible(&ar->sem)) {
1343 ath6kl_err("down_interruptible failed\n");
1344 return;
1345 }
1346
1347 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR)
1348 ath6kl_stop_endpoint(ndev, false, true);
1349
575b5f34 1350 clear_bit(WLAN_ENABLED, &ar->flag);
bdcd8170
KV		 1351}
1352
1353/*
1354 * We need to differentiate between the surprise and planned removal of the
1355 * device because of the following consideration:
1356 *
1357 * - In case of surprise removal, the hcd already frees up the pending
1358 * for the device and hence there is no need to unregister the function
1359 * driver inorder to get these requests. For planned removal, the function
1360 * driver has to explicitly unregister itself to have the hcd return all the
1361 * pending requests before the data structures for the devices are freed up.
1362 * Note that as per the current implementation, the function driver will
1363 * end up releasing all the devices since there is no API to selectively
1364 * release a particular device.
1365 *
1366 * - Certain commands issued to the target can be skipped for surprise
1367 * removal since they will anyway not go through.
1368 */
1369void ath6kl_destroy(struct net_device *dev, unsigned int unregister)
1370{
1371 struct ath6kl *ar;
1372
1373 if (!dev || !ath6kl_priv(dev)) {
1374 ath6kl_err("failed to get device structure\n");
1375 return;
1376 }
1377
1378 ar = ath6kl_priv(dev);
1379
1380 destroy_workqueue(ar->ath6kl_wq);
1381
1382 if (ar->htc_target)
ad226ec2 1383 ath6kl_htc_cleanup(ar->htc_target);
bdcd8170
KV		 1384
1385 aggr_module_destroy(ar->aggr_cntxt);
1386
1387 ath6kl_cookie_cleanup(ar);
1388
1389 ath6kl_cleanup_amsdu_rxbufs(ar);
1390
1391 ath6kl_bmi_cleanup(ar);
1392
bdf5396b
KV		 1393 ath6kl_debug_cleanup(ar);
1394
bdcd8170
KV		 1395 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) {
1396 unregister_netdev(dev);
1397 clear_bit(NETDEV_REGISTERED, &ar->flag);
1398 }
1399
1400 free_netdev(dev);
1401
852bd9d9
VT		 1402 wlan_node_table_cleanup(&ar->scan_table);
1403
19703573
RM		 1404 kfree(ar->fw_board);
1405 kfree(ar->fw_otp);
1406 kfree(ar->fw);
1407 kfree(ar->fw_patch);
1408
bdcd8170
KV		 1409 ath6kl_cfg80211_deinit(ar);
1410}
Linux kernel - Deliverables
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