blob: 60baf448f5482b7bd311bdfedb4418f129b30942 [file] [log] [blame]
Kalle Valobdcd8172011-07-18 00:22:30 +03001
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;
Kalle Valo003353b2011-09-01 10:14:21 +030026static unsigned int testmode;
Kalle Valobdcd8172011-07-18 00:22:30 +030027
28module_param(debug_mask, uint, 0644);
Kalle Valo003353b2011-09-01 10:14:21 +030029module_param(testmode, uint, 0644);
Kalle Valobdcd8172011-07-18 00:22:30 +030030
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 +
Vasanthakumar Thiagarajan1df94a82011-08-17 18:45:10 +053072 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
Kalle Valobdcd8172011-07-18 00:22:30 +030073 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;
Edward Lu38acde32011-08-30 21:58:06 +030090 ar->grp_crypto_len = 0;
Kalle Valobdcd8172011-07-18 00:22:30 +030091 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
113static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar,
114 u32 item_offset)
115{
116 u32 addr = 0;
117
118 if (ar->target_type == TARGET_TYPE_AR6003)
Kevin Fang31024d92011-07-11 17:14:13 +0800119 addr = ATH6KL_AR6003_HI_START_ADDR + item_offset;
120 else if (ar->target_type == TARGET_TYPE_AR6004)
121 addr = ATH6KL_AR6004_HI_START_ADDR + item_offset;
Kalle Valobdcd8172011-07-18 00:22:30 +0300122
123 return addr;
124}
125
126static int ath6kl_set_host_app_area(struct ath6kl *ar)
127{
128 u32 address, data;
129 struct host_app_area host_app_area;
130
131 /* Fetch the address of the host_app_area_s
132 * instance in the host interest area */
133 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
Kevin Fang31024d92011-07-11 17:14:13 +0800134 address = TARG_VTOP(ar->target_type, address);
Kalle Valobdcd8172011-07-18 00:22:30 +0300135
Kalle Valoaddb44b2011-09-02 10:32:05 +0300136 if (ath6kl_diag_read32(ar, address, &data))
Kalle Valobdcd8172011-07-18 00:22:30 +0300137 return -EIO;
138
Kevin Fang31024d92011-07-11 17:14:13 +0800139 address = TARG_VTOP(ar->target_type, data);
Kalle Valobdcd8172011-07-18 00:22:30 +0300140 host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION;
Kalle Valoaddb44b2011-09-02 10:32:05 +0300141 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
142 sizeof(struct host_app_area)))
Kalle Valobdcd8172011-07-18 00:22:30 +0300143 return -EIO;
144
145 return 0;
146}
147
148static inline void set_ac2_ep_map(struct ath6kl *ar,
149 u8 ac,
150 enum htc_endpoint_id ep)
151{
152 ar->ac2ep_map[ac] = ep;
153 ar->ep2ac_map[ep] = ac;
154}
155
156/* connect to a service */
157static int ath6kl_connectservice(struct ath6kl *ar,
158 struct htc_service_connect_req *con_req,
159 char *desc)
160{
161 int status;
162 struct htc_service_connect_resp response;
163
164 memset(&response, 0, sizeof(response));
165
Kalle Vaload226ec2011-08-10 09:49:12 +0300166 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
Kalle Valobdcd8172011-07-18 00:22:30 +0300167 if (status) {
168 ath6kl_err("failed to connect to %s service status:%d\n",
169 desc, status);
170 return status;
171 }
172
173 switch (con_req->svc_id) {
174 case WMI_CONTROL_SVC:
175 if (test_bit(WMI_ENABLED, &ar->flag))
176 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
177 ar->ctrl_ep = response.endpoint;
178 break;
179 case WMI_DATA_BE_SVC:
180 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
181 break;
182 case WMI_DATA_BK_SVC:
183 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
184 break;
185 case WMI_DATA_VI_SVC:
186 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
187 break;
188 case WMI_DATA_VO_SVC:
189 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
190 break;
191 default:
192 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
193 return -EINVAL;
194 }
195
196 return 0;
197}
198
199static int ath6kl_init_service_ep(struct ath6kl *ar)
200{
201 struct htc_service_connect_req connect;
202
203 memset(&connect, 0, sizeof(connect));
204
205 /* these fields are the same for all service endpoints */
206 connect.ep_cb.rx = ath6kl_rx;
207 connect.ep_cb.rx_refill = ath6kl_rx_refill;
208 connect.ep_cb.tx_full = ath6kl_tx_queue_full;
209
210 /*
211 * Set the max queue depth so that our ath6kl_tx_queue_full handler
212 * gets called.
213 */
214 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
215 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
216 if (!connect.ep_cb.rx_refill_thresh)
217 connect.ep_cb.rx_refill_thresh++;
218
219 /* connect to control service */
220 connect.svc_id = WMI_CONTROL_SVC;
221 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
222 return -EIO;
223
224 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
225
226 /*
227 * Limit the HTC message size on the send path, although e can
228 * receive A-MSDU frames of 4K, we will only send ethernet-sized
229 * (802.3) frames on the send path.
230 */
231 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
232
233 /*
234 * To reduce the amount of committed memory for larger A_MSDU
235 * frames, use the recv-alloc threshold mechanism for larger
236 * packets.
237 */
238 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
239 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
240
241 /*
242 * For the remaining data services set the connection flag to
243 * reduce dribbling, if configured to do so.
244 */
245 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
246 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
247 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
248
249 connect.svc_id = WMI_DATA_BE_SVC;
250
251 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
252 return -EIO;
253
254 /* connect to back-ground map this to WMI LOW_PRI */
255 connect.svc_id = WMI_DATA_BK_SVC;
256 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
257 return -EIO;
258
259 /* connect to Video service, map this to to HI PRI */
260 connect.svc_id = WMI_DATA_VI_SVC;
261 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
262 return -EIO;
263
264 /*
265 * Connect to VO service, this is currently not mapped to a WMI
266 * priority stream due to historical reasons. WMI originally
267 * defined 3 priorities over 3 mailboxes We can change this when
268 * WMI is reworked so that priorities are not dependent on
269 * mailboxes.
270 */
271 connect.svc_id = WMI_DATA_VO_SVC;
272 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
273 return -EIO;
274
275 return 0;
276}
277
278static void ath6kl_init_control_info(struct ath6kl *ar)
279{
280 u8 ctr;
281
282 clear_bit(WMI_ENABLED, &ar->flag);
283 ath6kl_init_profile_info(ar);
284 ar->def_txkey_index = 0;
285 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list));
286 ar->ch_hint = 0;
287 ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL;
288 ar->listen_intvl_b = 0;
289 ar->tx_pwr = 0;
290 clear_bit(SKIP_SCAN, &ar->flag);
291 set_bit(WMM_ENABLED, &ar->flag);
292 ar->intra_bss = 1;
293 memset(&ar->sc_params, 0, sizeof(ar->sc_params));
294 ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT;
295 ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS;
296
297 memset((u8 *)ar->sta_list, 0,
298 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta));
299
300 spin_lock_init(&ar->mcastpsq_lock);
301
302 /* Init the PS queues */
303 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
304 spin_lock_init(&ar->sta_list[ctr].psq_lock);
305 skb_queue_head_init(&ar->sta_list[ctr].psq);
306 }
307
308 skb_queue_head_init(&ar->mcastpsq);
309
310 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3);
311}
312
313/*
314 * Set HTC/Mbox operational parameters, this can only be called when the
315 * target is in the BMI phase.
316 */
317static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
318 u8 htc_ctrl_buf)
319{
320 int status;
321 u32 blk_size;
322
323 blk_size = ar->mbox_info.block_size;
324
325 if (htc_ctrl_buf)
326 blk_size |= ((u32)htc_ctrl_buf) << 16;
327
328 /* set the host interest area for the block size */
329 status = ath6kl_bmi_write(ar,
330 ath6kl_get_hi_item_addr(ar,
331 HI_ITEM(hi_mbox_io_block_sz)),
332 (u8 *)&blk_size,
333 4);
334 if (status) {
335 ath6kl_err("bmi_write_memory for IO block size failed\n");
336 goto out;
337 }
338
339 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
340 blk_size,
341 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
342
343 if (mbox_isr_yield_val) {
344 /* set the host interest area for the mbox ISR yield limit */
345 status = ath6kl_bmi_write(ar,
346 ath6kl_get_hi_item_addr(ar,
347 HI_ITEM(hi_mbox_isr_yield_limit)),
348 (u8 *)&mbox_isr_yield_val,
349 4);
350 if (status) {
351 ath6kl_err("bmi_write_memory for yield limit failed\n");
352 goto out;
353 }
354 }
355
356out:
357 return status;
358}
359
360#define REG_DUMP_COUNT_AR6003 60
361#define REGISTER_DUMP_LEN_MAX 60
362
363static void ath6kl_dump_target_assert_info(struct ath6kl *ar)
364{
365 u32 address;
366 u32 regdump_loc = 0;
367 int status;
368 u32 regdump_val[REGISTER_DUMP_LEN_MAX];
369 u32 i;
370
371 if (ar->target_type != TARGET_TYPE_AR6003)
372 return;
373
374 /* the reg dump pointer is copied to the host interest area */
375 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state));
Kevin Fang31024d92011-07-11 17:14:13 +0800376 address = TARG_VTOP(ar->target_type, address);
Kalle Valobdcd8172011-07-18 00:22:30 +0300377
378 /* read RAM location through diagnostic window */
Kalle Valoaddb44b2011-09-02 10:32:05 +0300379 status = ath6kl_diag_read32(ar, address, &regdump_loc);
Kalle Valobdcd8172011-07-18 00:22:30 +0300380
381 if (status || !regdump_loc) {
382 ath6kl_err("failed to get ptr to register dump area\n");
383 return;
384 }
385
386 ath6kl_dbg(ATH6KL_DBG_TRC, "location of register dump data: 0x%X\n",
387 regdump_loc);
Kevin Fang31024d92011-07-11 17:14:13 +0800388 regdump_loc = TARG_VTOP(ar->target_type, regdump_loc);
Kalle Valobdcd8172011-07-18 00:22:30 +0300389
390 /* fetch register dump data */
Kalle Valoaddb44b2011-09-02 10:32:05 +0300391 status = ath6kl_diag_read(ar, regdump_loc, (u8 *)&regdump_val[0],
392 REG_DUMP_COUNT_AR6003 * (sizeof(u32)));
Kalle Valobdcd8172011-07-18 00:22:30 +0300393
394 if (status) {
395 ath6kl_err("failed to get register dump\n");
396 return;
397 }
398 ath6kl_dbg(ATH6KL_DBG_TRC, "Register Dump:\n");
399
400 for (i = 0; i < REG_DUMP_COUNT_AR6003; i++)
401 ath6kl_dbg(ATH6KL_DBG_TRC, " %d : 0x%8.8X\n",
402 i, regdump_val[i]);
403
404}
405
406void ath6kl_target_failure(struct ath6kl *ar)
407{
408 ath6kl_err("target asserted\n");
409
410 /* try dumping target assertion information (if any) */
411 ath6kl_dump_target_assert_info(ar);
412
413}
414
415static int ath6kl_target_config_wlan_params(struct ath6kl *ar)
416{
417 int status = 0;
Jouni Malinen4dea08e2011-08-30 21:57:57 +0300418 int ret;
Kalle Valobdcd8172011-07-18 00:22:30 +0300419
420 /*
421 * Configure the device for rx dot11 header rules. "0,0" are the
422 * default values. Required if checksum offload is needed. Set
423 * RxMetaVersion to 2.
424 */
425 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
426 ar->rx_meta_ver, 0, 0)) {
427 ath6kl_err("unable to set the rx frame format\n");
428 status = -EIO;
429 }
430
431 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
432 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, 0, 1, 0, 0, 1,
433 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
434 ath6kl_err("unable to set power save fail event policy\n");
435 status = -EIO;
436 }
437
438 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
439 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, 0,
440 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
441 ath6kl_err("unable to set barker preamble policy\n");
442 status = -EIO;
443 }
444
445 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi,
446 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
447 ath6kl_err("unable to set keep alive interval\n");
448 status = -EIO;
449 }
450
451 if (ath6kl_wmi_disctimeout_cmd(ar->wmi,
452 WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
453 ath6kl_err("unable to set disconnect timeout\n");
454 status = -EIO;
455 }
456
457 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
458 if (ath6kl_wmi_set_wmm_txop(ar->wmi, WMI_TXOP_DISABLED)) {
459 ath6kl_err("unable to set txop bursting\n");
460 status = -EIO;
461 }
462
Jouni Malinen4dea08e2011-08-30 21:57:57 +0300463 ret = ath6kl_wmi_info_req_cmd(ar->wmi, P2P_FLAG_CAPABILITIES_REQ |
464 P2P_FLAG_MACADDR_REQ |
465 P2P_FLAG_HMODEL_REQ);
466 if (ret) {
467 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
468 "capabilities (%d) - assuming P2P not supported\n",
469 ret);
470 }
471
Kalle Valobdcd8172011-07-18 00:22:30 +0300472 return status;
473}
474
475int ath6kl_configure_target(struct ath6kl *ar)
476{
477 u32 param, ram_reserved_size;
478 u8 fw_iftype;
479
480 fw_iftype = ath6kl_get_fw_iftype(ar);
481 if (fw_iftype == 0xff)
482 return -EINVAL;
483
484 /* Tell target which HTC version it is used*/
485 param = HTC_PROTOCOL_VERSION;
486 if (ath6kl_bmi_write(ar,
487 ath6kl_get_hi_item_addr(ar,
488 HI_ITEM(hi_app_host_interest)),
489 (u8 *)&param, 4) != 0) {
490 ath6kl_err("bmi_write_memory for htc version failed\n");
491 return -EIO;
492 }
493
494 /* set the firmware mode to STA/IBSS/AP */
495 param = 0;
496
497 if (ath6kl_bmi_read(ar,
498 ath6kl_get_hi_item_addr(ar,
499 HI_ITEM(hi_option_flag)),
500 (u8 *)&param, 4) != 0) {
501 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
502 return -EIO;
503 }
504
505 param |= (1 << HI_OPTION_NUM_DEV_SHIFT);
506 param |= (fw_iftype << HI_OPTION_FW_MODE_SHIFT);
507 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
508 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
509
510 if (ath6kl_bmi_write(ar,
511 ath6kl_get_hi_item_addr(ar,
512 HI_ITEM(hi_option_flag)),
513 (u8 *)&param,
514 4) != 0) {
515 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
516 return -EIO;
517 }
518
519 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
520
521 /*
522 * Hardcode the address use for the extended board data
523 * Ideally this should be pre-allocate by the OS at boot time
524 * But since it is a new feature and board data is loaded
525 * at init time, we have to workaround this from host.
526 * It is difficult to patch the firmware boot code,
527 * but possible in theory.
528 */
529
Kevin Fang31024d92011-07-11 17:14:13 +0800530 if (ar->target_type == TARGET_TYPE_AR6003 ||
531 ar->target_type == TARGET_TYPE_AR6004) {
Kalle Valobdcd8172011-07-18 00:22:30 +0300532 if (ar->version.target_ver == AR6003_REV2_VERSION) {
533 param = AR6003_REV2_BOARD_EXT_DATA_ADDRESS;
534 ram_reserved_size = AR6003_REV2_RAM_RESERVE_SIZE;
Kevin Fang31024d92011-07-11 17:14:13 +0800535 } else if (ar->version.target_ver == AR6004_REV1_VERSION) {
536 param = AR6004_REV1_BOARD_EXT_DATA_ADDRESS;
537 ram_reserved_size = AR6004_REV1_RAM_RESERVE_SIZE;
Kalle Valobdcd8172011-07-18 00:22:30 +0300538 } else {
539 param = AR6003_REV3_BOARD_EXT_DATA_ADDRESS;
540 ram_reserved_size = AR6003_REV3_RAM_RESERVE_SIZE;
541 }
542
543 if (ath6kl_bmi_write(ar,
544 ath6kl_get_hi_item_addr(ar,
545 HI_ITEM(hi_board_ext_data)),
546 (u8 *)&param, 4) != 0) {
547 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
548 return -EIO;
549 }
550 if (ath6kl_bmi_write(ar,
551 ath6kl_get_hi_item_addr(ar,
552 HI_ITEM(hi_end_ram_reserve_sz)),
553 (u8 *)&ram_reserved_size, 4) != 0) {
554 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
555 return -EIO;
556 }
557 }
558
559 /* set the block size for the target */
560 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
561 /* use default number of control buffers */
562 return -EIO;
563
564 return 0;
565}
566
567struct ath6kl *ath6kl_core_alloc(struct device *sdev)
568{
569 struct net_device *dev;
570 struct ath6kl *ar;
571 struct wireless_dev *wdev;
572
573 wdev = ath6kl_cfg80211_init(sdev);
574 if (!wdev) {
575 ath6kl_err("ath6kl_cfg80211_init failed\n");
576 return NULL;
577 }
578
579 ar = wdev_priv(wdev);
580 ar->dev = sdev;
581 ar->wdev = wdev;
582 wdev->iftype = NL80211_IFTYPE_STATION;
583
Vasanthakumar Thiagarajand999ba32011-08-26 13:06:31 +0530584 if (ath6kl_debug_init(ar)) {
585 ath6kl_err("Failed to initialize debugfs\n");
586 ath6kl_cfg80211_deinit(ar);
587 return NULL;
588 }
589
Kalle Valobdcd8172011-07-18 00:22:30 +0300590 dev = alloc_netdev(0, "wlan%d", ether_setup);
591 if (!dev) {
592 ath6kl_err("no memory for network device instance\n");
593 ath6kl_cfg80211_deinit(ar);
594 return NULL;
595 }
596
597 dev->ieee80211_ptr = wdev;
598 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
599 wdev->netdev = dev;
600 ar->sme_state = SME_DISCONNECTED;
601 ar->auto_auth_stage = AUTH_IDLE;
602
603 init_netdev(dev);
604
605 ar->net_dev = dev;
Raja Mani575b5f32011-07-19 19:27:33 +0530606 set_bit(WLAN_ENABLED, &ar->flag);
Kalle Valobdcd8172011-07-18 00:22:30 +0300607
608 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
609
610 spin_lock_init(&ar->lock);
611
612 ath6kl_init_control_info(ar);
613 init_waitqueue_head(&ar->event_wq);
614 sema_init(&ar->sem, 1);
615 clear_bit(DESTROY_IN_PROGRESS, &ar->flag);
616
617 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue);
618
619 setup_timer(&ar->disconnect_timer, disconnect_timer_handler,
620 (unsigned long) dev);
621
622 return ar;
623}
624
625int ath6kl_unavail_ev(struct ath6kl *ar)
626{
627 ath6kl_destroy(ar->net_dev, 1);
628
629 return 0;
630}
631
632/* firmware upload */
633static u32 ath6kl_get_load_address(u32 target_ver, enum addr_type type)
634{
635 WARN_ON(target_ver != AR6003_REV2_VERSION &&
Kevin Fang31024d92011-07-11 17:14:13 +0800636 target_ver != AR6003_REV3_VERSION &&
637 target_ver != AR6004_REV1_VERSION);
Kalle Valobdcd8172011-07-18 00:22:30 +0300638
639 switch (type) {
640 case DATASET_PATCH_ADDR:
641 return (target_ver == AR6003_REV2_VERSION) ?
642 AR6003_REV2_DATASET_PATCH_ADDRESS :
643 AR6003_REV3_DATASET_PATCH_ADDRESS;
644 case APP_LOAD_ADDR:
645 return (target_ver == AR6003_REV2_VERSION) ?
646 AR6003_REV2_APP_LOAD_ADDRESS :
647 0x1234;
648 case APP_START_OVERRIDE_ADDR:
649 return (target_ver == AR6003_REV2_VERSION) ?
650 AR6003_REV2_APP_START_OVERRIDE :
651 AR6003_REV3_APP_START_OVERRIDE;
652 default:
653 return 0;
654 }
655}
656
657static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
658 u8 **fw, size_t *fw_len)
659{
660 const struct firmware *fw_entry;
661 int ret;
662
663 ret = request_firmware(&fw_entry, filename, ar->dev);
664 if (ret)
665 return ret;
666
667 *fw_len = fw_entry->size;
668 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
669
670 if (*fw == NULL)
671 ret = -ENOMEM;
672
673 release_firmware(fw_entry);
674
675 return ret;
676}
677
678static int ath6kl_fetch_board_file(struct ath6kl *ar)
679{
680 const char *filename;
681 int ret;
682
683 switch (ar->version.target_ver) {
684 case AR6003_REV2_VERSION:
685 filename = AR6003_REV2_BOARD_DATA_FILE;
686 break;
Kevin Fang31024d92011-07-11 17:14:13 +0800687 case AR6004_REV1_VERSION:
688 filename = AR6004_REV1_BOARD_DATA_FILE;
689 break;
Kalle Valobdcd8172011-07-18 00:22:30 +0300690 default:
691 filename = AR6003_REV3_BOARD_DATA_FILE;
692 break;
693 }
694
695 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
696 &ar->fw_board_len);
697 if (ret == 0) {
698 /* managed to get proper board file */
699 return 0;
700 }
701
702 /* there was no proper board file, try to use default instead */
703 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
704 filename, ret);
705
706 switch (ar->version.target_ver) {
707 case AR6003_REV2_VERSION:
708 filename = AR6003_REV2_DEFAULT_BOARD_DATA_FILE;
709 break;
Kevin Fang31024d92011-07-11 17:14:13 +0800710 case AR6004_REV1_VERSION:
711 filename = AR6004_REV1_DEFAULT_BOARD_DATA_FILE;
712 break;
Kalle Valobdcd8172011-07-18 00:22:30 +0300713 default:
714 filename = AR6003_REV3_DEFAULT_BOARD_DATA_FILE;
715 break;
716 }
717
718 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
719 &ar->fw_board_len);
720 if (ret) {
721 ath6kl_err("Failed to get default board file %s: %d\n",
722 filename, ret);
723 return ret;
724 }
725
726 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
727 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
728
729 return 0;
730}
731
732
733static int ath6kl_upload_board_file(struct ath6kl *ar)
734{
735 u32 board_address, board_ext_address, param;
Kevin Fang31024d92011-07-11 17:14:13 +0800736 u32 board_data_size, board_ext_data_size;
Kalle Valobdcd8172011-07-18 00:22:30 +0300737 int ret;
738
739 if (ar->fw_board == NULL) {
740 ret = ath6kl_fetch_board_file(ar);
741 if (ret)
742 return ret;
743 }
744
Kevin Fang31024d92011-07-11 17:14:13 +0800745 /*
746 * Determine where in Target RAM to write Board Data.
747 * For AR6004, host determine Target RAM address for
748 * writing board data.
749 */
750 if (ar->target_type == TARGET_TYPE_AR6004) {
751 board_address = AR6004_REV1_BOARD_DATA_ADDRESS;
752 ath6kl_bmi_write(ar,
753 ath6kl_get_hi_item_addr(ar,
754 HI_ITEM(hi_board_data)),
755 (u8 *) &board_address, 4);
756 } else {
757 ath6kl_bmi_read(ar,
758 ath6kl_get_hi_item_addr(ar,
759 HI_ITEM(hi_board_data)),
760 (u8 *) &board_address, 4);
761 }
762
Kalle Valobdcd8172011-07-18 00:22:30 +0300763 ath6kl_dbg(ATH6KL_DBG_TRC, "board data download addr: 0x%x\n",
764 board_address);
765
766 /* determine where in target ram to write extended board data */
767 ath6kl_bmi_read(ar,
768 ath6kl_get_hi_item_addr(ar,
769 HI_ITEM(hi_board_ext_data)),
770 (u8 *) &board_ext_address, 4);
771
772 ath6kl_dbg(ATH6KL_DBG_TRC, "board file download addr: 0x%x\n",
773 board_ext_address);
774
775 if (board_ext_address == 0) {
776 ath6kl_err("Failed to get board file target address.\n");
777 return -EINVAL;
778 }
779
Kevin Fang31024d92011-07-11 17:14:13 +0800780 switch (ar->target_type) {
781 case TARGET_TYPE_AR6003:
782 board_data_size = AR6003_BOARD_DATA_SZ;
783 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
784 break;
785 case TARGET_TYPE_AR6004:
786 board_data_size = AR6004_BOARD_DATA_SZ;
787 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
788 break;
789 default:
790 WARN_ON(1);
791 return -EINVAL;
792 break;
793 }
794
795 if (ar->fw_board_len == (board_data_size +
796 board_ext_data_size)) {
797
Kalle Valobdcd8172011-07-18 00:22:30 +0300798 /* write extended board data */
799 ret = ath6kl_bmi_write(ar, board_ext_address,
Kevin Fang31024d92011-07-11 17:14:13 +0800800 ar->fw_board + board_data_size,
801 board_ext_data_size);
Kalle Valobdcd8172011-07-18 00:22:30 +0300802 if (ret) {
803 ath6kl_err("Failed to write extended board data: %d\n",
804 ret);
805 return ret;
806 }
807
808 /* record that extended board data is initialized */
Kevin Fang31024d92011-07-11 17:14:13 +0800809 param = (board_ext_data_size << 16) | 1;
810
Kalle Valobdcd8172011-07-18 00:22:30 +0300811 ath6kl_bmi_write(ar,
812 ath6kl_get_hi_item_addr(ar,
813 HI_ITEM(hi_board_ext_data_config)),
814 (unsigned char *) &param, 4);
815 }
816
Kevin Fang31024d92011-07-11 17:14:13 +0800817 if (ar->fw_board_len < board_data_size) {
Kalle Valobdcd8172011-07-18 00:22:30 +0300818 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
819 ret = -EINVAL;
820 return ret;
821 }
822
823 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
Kevin Fang31024d92011-07-11 17:14:13 +0800824 board_data_size);
Kalle Valobdcd8172011-07-18 00:22:30 +0300825
826 if (ret) {
827 ath6kl_err("Board file bmi write failed: %d\n", ret);
828 return ret;
829 }
830
831 /* record the fact that Board Data IS initialized */
832 param = 1;
833 ath6kl_bmi_write(ar,
834 ath6kl_get_hi_item_addr(ar,
835 HI_ITEM(hi_board_data_initialized)),
836 (u8 *)&param, 4);
837
838 return ret;
839}
840
841static int ath6kl_upload_otp(struct ath6kl *ar)
842{
843 const char *filename;
844 u32 address, param;
845 int ret;
846
847 switch (ar->version.target_ver) {
848 case AR6003_REV2_VERSION:
849 filename = AR6003_REV2_OTP_FILE;
850 break;
Kevin Fang31024d92011-07-11 17:14:13 +0800851 case AR6004_REV1_VERSION:
852 ath6kl_dbg(ATH6KL_DBG_TRC, "AR6004 doesn't need OTP file\n");
853 return 0;
854 break;
Kalle Valobdcd8172011-07-18 00:22:30 +0300855 default:
856 filename = AR6003_REV3_OTP_FILE;
857 break;
858 }
859
860 if (ar->fw_otp == NULL) {
861 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
862 &ar->fw_otp_len);
863 if (ret) {
864 ath6kl_err("Failed to get OTP file %s: %d\n",
865 filename, ret);
866 return ret;
867 }
868 }
869
870 address = ath6kl_get_load_address(ar->version.target_ver,
871 APP_LOAD_ADDR);
872
873 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
874 ar->fw_otp_len);
875 if (ret) {
876 ath6kl_err("Failed to upload OTP file: %d\n", ret);
877 return ret;
878 }
879
880 /* execute the OTP code */
881 param = 0;
882 address = ath6kl_get_load_address(ar->version.target_ver,
883 APP_START_OVERRIDE_ADDR);
884 ath6kl_bmi_execute(ar, address, &param);
885
886 return ret;
887}
888
889static int ath6kl_upload_firmware(struct ath6kl *ar)
890{
891 const char *filename;
892 u32 address;
893 int ret;
894
Kalle Valo003353b2011-09-01 10:14:21 +0300895 if (testmode) {
896 switch (ar->version.target_ver) {
897 case AR6003_REV2_VERSION:
898 filename = AR6003_REV2_TCMD_FIRMWARE_FILE;
899 break;
900 case AR6003_REV3_VERSION:
901 filename = AR6003_REV3_TCMD_FIRMWARE_FILE;
902 break;
903 case AR6004_REV1_VERSION:
904 ath6kl_warn("testmode not supported with ar6004\n");
905 return -EOPNOTSUPP;
906 default:
907 ath6kl_warn("unknown target version: 0x%x\n",
908 ar->version.target_ver);
909 return -EINVAL;
910 }
911
912 set_bit(TESTMODE, &ar->flag);
913
914 goto get_fw;
915 }
916
Kalle Valobdcd8172011-07-18 00:22:30 +0300917 switch (ar->version.target_ver) {
918 case AR6003_REV2_VERSION:
919 filename = AR6003_REV2_FIRMWARE_FILE;
920 break;
Kevin Fang31024d92011-07-11 17:14:13 +0800921 case AR6004_REV1_VERSION:
922 filename = AR6004_REV1_FIRMWARE_FILE;
923 break;
Kalle Valobdcd8172011-07-18 00:22:30 +0300924 default:
925 filename = AR6003_REV3_FIRMWARE_FILE;
926 break;
927 }
928
Kalle Valo003353b2011-09-01 10:14:21 +0300929get_fw:
930
Kalle Valobdcd8172011-07-18 00:22:30 +0300931 if (ar->fw == NULL) {
932 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
933 if (ret) {
934 ath6kl_err("Failed to get firmware file %s: %d\n",
935 filename, ret);
936 return ret;
937 }
938 }
939
940 address = ath6kl_get_load_address(ar->version.target_ver,
941 APP_LOAD_ADDR);
942
943 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
944
945 if (ret) {
946 ath6kl_err("Failed to write firmware: %d\n", ret);
947 return ret;
948 }
949
Kevin Fang31024d92011-07-11 17:14:13 +0800950 /*
951 * Set starting address for firmware
952 * Don't need to setup app_start override addr on AR6004
953 */
954 if (ar->target_type != TARGET_TYPE_AR6004) {
955 address = ath6kl_get_load_address(ar->version.target_ver,
956 APP_START_OVERRIDE_ADDR);
957 ath6kl_bmi_set_app_start(ar, address);
958 }
Kalle Valobdcd8172011-07-18 00:22:30 +0300959 return ret;
960}
961
962static int ath6kl_upload_patch(struct ath6kl *ar)
963{
964 const char *filename;
965 u32 address, param;
966 int ret;
967
968 switch (ar->version.target_ver) {
969 case AR6003_REV2_VERSION:
970 filename = AR6003_REV2_PATCH_FILE;
971 break;
Kevin Fang31024d92011-07-11 17:14:13 +0800972 case AR6004_REV1_VERSION:
973 /* FIXME: implement for AR6004 */
974 return 0;
975 break;
Kalle Valobdcd8172011-07-18 00:22:30 +0300976 default:
977 filename = AR6003_REV3_PATCH_FILE;
978 break;
979 }
980
981 if (ar->fw_patch == NULL) {
982 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
983 &ar->fw_patch_len);
984 if (ret) {
985 ath6kl_err("Failed to get patch file %s: %d\n",
986 filename, ret);
987 return ret;
988 }
989 }
990
991 address = ath6kl_get_load_address(ar->version.target_ver,
992 DATASET_PATCH_ADDR);
993
994 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
995 if (ret) {
996 ath6kl_err("Failed to write patch file: %d\n", ret);
997 return ret;
998 }
999
1000 param = address;
1001 ath6kl_bmi_write(ar,
1002 ath6kl_get_hi_item_addr(ar,
1003 HI_ITEM(hi_dset_list_head)),
1004 (unsigned char *) &param, 4);
1005
1006 return 0;
1007}
1008
1009static int ath6kl_init_upload(struct ath6kl *ar)
1010{
1011 u32 param, options, sleep, address;
1012 int status = 0;
1013
Kevin Fang31024d92011-07-11 17:14:13 +08001014 if (ar->target_type != TARGET_TYPE_AR6003 &&
1015 ar->target_type != TARGET_TYPE_AR6004)
Kalle Valobdcd8172011-07-18 00:22:30 +03001016 return -EINVAL;
1017
1018 /* temporarily disable system sleep */
1019 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1020 status = ath6kl_bmi_reg_read(ar, address, &param);
1021 if (status)
1022 return status;
1023
1024 options = param;
1025
1026 param |= ATH6KL_OPTION_SLEEP_DISABLE;
1027 status = ath6kl_bmi_reg_write(ar, address, param);
1028 if (status)
1029 return status;
1030
1031 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1032 status = ath6kl_bmi_reg_read(ar, address, &param);
1033 if (status)
1034 return status;
1035
1036 sleep = param;
1037
1038 param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1039 status = ath6kl_bmi_reg_write(ar, address, param);
1040 if (status)
1041 return status;
1042
1043 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1044 options, sleep);
1045
1046 /* program analog PLL register */
Kevin Fang31024d92011-07-11 17:14:13 +08001047 /* no need to control 40/44MHz clock on AR6004 */
1048 if (ar->target_type != TARGET_TYPE_AR6004) {
1049 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1050 0xF9104001);
Kalle Valobdcd8172011-07-18 00:22:30 +03001051
Kevin Fang31024d92011-07-11 17:14:13 +08001052 if (status)
1053 return status;
Kalle Valobdcd8172011-07-18 00:22:30 +03001054
Kevin Fang31024d92011-07-11 17:14:13 +08001055 /* Run at 80/88MHz by default */
1056 param = SM(CPU_CLOCK_STANDARD, 1);
1057
1058 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1059 status = ath6kl_bmi_reg_write(ar, address, param);
1060 if (status)
1061 return status;
1062 }
Kalle Valobdcd8172011-07-18 00:22:30 +03001063
1064 param = 0;
1065 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1066 param = SM(LPO_CAL_ENABLE, 1);
1067 status = ath6kl_bmi_reg_write(ar, address, param);
1068 if (status)
1069 return status;
1070
1071 /* WAR to avoid SDIO CRC err */
1072 if (ar->version.target_ver == AR6003_REV2_VERSION) {
1073 ath6kl_err("temporary war to avoid sdio crc error\n");
1074
1075 param = 0x20;
1076
1077 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1078 status = ath6kl_bmi_reg_write(ar, address, param);
1079 if (status)
1080 return status;
1081
1082 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1083 status = ath6kl_bmi_reg_write(ar, address, param);
1084 if (status)
1085 return status;
1086
1087 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1088 status = ath6kl_bmi_reg_write(ar, address, param);
1089 if (status)
1090 return status;
1091
1092 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1093 status = ath6kl_bmi_reg_write(ar, address, param);
1094 if (status)
1095 return status;
1096 }
1097
1098 /* write EEPROM data to Target RAM */
1099 status = ath6kl_upload_board_file(ar);
1100 if (status)
1101 return status;
1102
1103 /* transfer One time Programmable data */
1104 status = ath6kl_upload_otp(ar);
1105 if (status)
1106 return status;
1107
1108 /* Download Target firmware */
1109 status = ath6kl_upload_firmware(ar);
1110 if (status)
1111 return status;
1112
1113 status = ath6kl_upload_patch(ar);
1114 if (status)
1115 return status;
1116
1117 /* Restore system sleep */
1118 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1119 status = ath6kl_bmi_reg_write(ar, address, sleep);
1120 if (status)
1121 return status;
1122
1123 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1124 param = options | 0x20;
1125 status = ath6kl_bmi_reg_write(ar, address, param);
1126 if (status)
1127 return status;
1128
1129 /* Configure GPIO AR6003 UART */
1130 param = CONFIG_AR600x_DEBUG_UART_TX_PIN;
1131 status = ath6kl_bmi_write(ar,
1132 ath6kl_get_hi_item_addr(ar,
1133 HI_ITEM(hi_dbg_uart_txpin)),
1134 (u8 *)&param, 4);
1135
1136 return status;
1137}
1138
1139static int ath6kl_init(struct net_device *dev)
1140{
1141 struct ath6kl *ar = ath6kl_priv(dev);
1142 int status = 0;
1143 s32 timeleft;
1144
1145 if (!ar)
1146 return -EIO;
1147
1148 /* Do we need to finish the BMI phase */
1149 if (ath6kl_bmi_done(ar)) {
1150 status = -EIO;
1151 goto ath6kl_init_done;
1152 }
1153
1154 /* Indicate that WMI is enabled (although not ready yet) */
1155 set_bit(WMI_ENABLED, &ar->flag);
Vasanthakumar Thiagarajan28657852011-07-21 12:00:49 +05301156 ar->wmi = ath6kl_wmi_init(ar);
Kalle Valobdcd8172011-07-18 00:22:30 +03001157 if (!ar->wmi) {
1158 ath6kl_err("failed to initialize wmi\n");
1159 status = -EIO;
1160 goto ath6kl_init_done;
1161 }
1162
1163 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1164
Vasanthakumar Thiagarajan852bd9d2011-07-21 14:24:54 +05301165 wlan_node_table_init(&ar->scan_table);
1166
Kalle Valobdcd8172011-07-18 00:22:30 +03001167 /*
1168 * The reason we have to wait for the target here is that the
1169 * driver layer has to init BMI in order to set the host block
1170 * size.
1171 */
Kalle Vaload226ec2011-08-10 09:49:12 +03001172 if (ath6kl_htc_wait_target(ar->htc_target)) {
Kalle Valobdcd8172011-07-18 00:22:30 +03001173 status = -EIO;
Vasanthakumar Thiagarajan852bd9d2011-07-21 14:24:54 +05301174 goto err_node_cleanup;
Kalle Valobdcd8172011-07-18 00:22:30 +03001175 }
1176
1177 if (ath6kl_init_service_ep(ar)) {
1178 status = -EIO;
1179 goto err_cleanup_scatter;
1180 }
1181
1182 /* setup access class priority mappings */
1183 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */
1184 ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1185 ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1186 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1187
1188 /* give our connected endpoints some buffers */
1189 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1190 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1191
1192 /* allocate some buffers that handle larger AMSDU frames */
1193 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1194
1195 /* setup credit distribution */
1196 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info);
1197
1198 ath6kl_cookie_init(ar);
1199
1200 /* start HTC */
Kalle Vaload226ec2011-08-10 09:49:12 +03001201 status = ath6kl_htc_start(ar->htc_target);
Kalle Valobdcd8172011-07-18 00:22:30 +03001202
1203 if (status) {
1204 ath6kl_cookie_cleanup(ar);
1205 goto err_rxbuf_cleanup;
1206 }
1207
1208 /* Wait for Wmi event to be ready */
1209 timeleft = wait_event_interruptible_timeout(ar->event_wq,
1210 test_bit(WMI_READY,
1211 &ar->flag),
1212 WMI_TIMEOUT);
1213
1214 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1215 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1216 ATH6KL_ABI_VERSION, ar->version.abi_ver);
1217 status = -EIO;
1218 goto err_htc_stop;
1219 }
1220
1221 if (!timeleft || signal_pending(current)) {
1222 ath6kl_err("wmi is not ready or wait was interrupted\n");
1223 status = -EIO;
1224 goto err_htc_stop;
1225 }
1226
1227 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1228
1229 /* communicate the wmi protocol verision to the target */
1230 if ((ath6kl_set_host_app_area(ar)) != 0)
1231 ath6kl_err("unable to set the host app area\n");
1232
1233 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1234 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1235
1236 status = ath6kl_target_config_wlan_params(ar);
1237 if (!status)
1238 goto ath6kl_init_done;
1239
1240err_htc_stop:
Kalle Vaload226ec2011-08-10 09:49:12 +03001241 ath6kl_htc_stop(ar->htc_target);
Kalle Valobdcd8172011-07-18 00:22:30 +03001242err_rxbuf_cleanup:
Kalle Vaload226ec2011-08-10 09:49:12 +03001243 ath6kl_htc_flush_rx_buf(ar->htc_target);
Kalle Valobdcd8172011-07-18 00:22:30 +03001244 ath6kl_cleanup_amsdu_rxbufs(ar);
1245err_cleanup_scatter:
1246 ath6kl_hif_cleanup_scatter(ar);
Vasanthakumar Thiagarajan852bd9d2011-07-21 14:24:54 +05301247err_node_cleanup:
1248 wlan_node_table_cleanup(&ar->scan_table);
Kalle Valobdcd8172011-07-18 00:22:30 +03001249 ath6kl_wmi_shutdown(ar->wmi);
1250 clear_bit(WMI_ENABLED, &ar->flag);
1251 ar->wmi = NULL;
1252
1253ath6kl_init_done:
1254 return status;
1255}
1256
1257int ath6kl_core_init(struct ath6kl *ar)
1258{
1259 int ret = 0;
1260 struct ath6kl_bmi_target_info targ_info;
1261
1262 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1263 if (!ar->ath6kl_wq)
1264 return -ENOMEM;
1265
1266 ret = ath6kl_bmi_init(ar);
1267 if (ret)
1268 goto err_wq;
1269
1270 ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1271 if (ret)
1272 goto err_bmi_cleanup;
1273
1274 ar->version.target_ver = le32_to_cpu(targ_info.version);
1275 ar->target_type = le32_to_cpu(targ_info.type);
1276 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version);
1277
1278 ret = ath6kl_configure_target(ar);
1279 if (ret)
1280 goto err_bmi_cleanup;
1281
Kalle Vaload226ec2011-08-10 09:49:12 +03001282 ar->htc_target = ath6kl_htc_create(ar);
Kalle Valobdcd8172011-07-18 00:22:30 +03001283
1284 if (!ar->htc_target) {
1285 ret = -ENOMEM;
1286 goto err_bmi_cleanup;
1287 }
1288
1289 ar->aggr_cntxt = aggr_init(ar->net_dev);
1290 if (!ar->aggr_cntxt) {
1291 ath6kl_err("failed to initialize aggr\n");
1292 ret = -ENOMEM;
1293 goto err_htc_cleanup;
1294 }
1295
1296 ret = ath6kl_init_upload(ar);
1297 if (ret)
1298 goto err_htc_cleanup;
1299
1300 ret = ath6kl_init(ar->net_dev);
1301 if (ret)
1302 goto err_htc_cleanup;
1303
1304 /* This runs the init function if registered */
1305 ret = register_netdev(ar->net_dev);
1306 if (ret) {
1307 ath6kl_err("register_netdev failed\n");
1308 ath6kl_destroy(ar->net_dev, 0);
1309 return ret;
1310 }
1311
1312 set_bit(NETDEV_REGISTERED, &ar->flag);
1313
1314 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1315 __func__, ar->net_dev->name, ar->net_dev, ar);
1316
1317 return ret;
1318
1319err_htc_cleanup:
Kalle Vaload226ec2011-08-10 09:49:12 +03001320 ath6kl_htc_cleanup(ar->htc_target);
Kalle Valobdcd8172011-07-18 00:22:30 +03001321err_bmi_cleanup:
1322 ath6kl_bmi_cleanup(ar);
1323err_wq:
1324 destroy_workqueue(ar->ath6kl_wq);
1325 return ret;
1326}
1327
1328void ath6kl_stop_txrx(struct ath6kl *ar)
1329{
1330 struct net_device *ndev = ar->net_dev;
1331
1332 if (!ndev)
1333 return;
1334
1335 set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1336
1337 if (down_interruptible(&ar->sem)) {
1338 ath6kl_err("down_interruptible failed\n");
1339 return;
1340 }
1341
1342 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR)
1343 ath6kl_stop_endpoint(ndev, false, true);
1344
Raja Mani575b5f32011-07-19 19:27:33 +05301345 clear_bit(WLAN_ENABLED, &ar->flag);
Kalle Valobdcd8172011-07-18 00:22:30 +03001346}
1347
1348/*
1349 * We need to differentiate between the surprise and planned removal of the
1350 * device because of the following consideration:
1351 *
1352 * - In case of surprise removal, the hcd already frees up the pending
1353 * for the device and hence there is no need to unregister the function
1354 * driver inorder to get these requests. For planned removal, the function
1355 * driver has to explicitly unregister itself to have the hcd return all the
1356 * pending requests before the data structures for the devices are freed up.
1357 * Note that as per the current implementation, the function driver will
1358 * end up releasing all the devices since there is no API to selectively
1359 * release a particular device.
1360 *
1361 * - Certain commands issued to the target can be skipped for surprise
1362 * removal since they will anyway not go through.
1363 */
1364void ath6kl_destroy(struct net_device *dev, unsigned int unregister)
1365{
1366 struct ath6kl *ar;
1367
1368 if (!dev || !ath6kl_priv(dev)) {
1369 ath6kl_err("failed to get device structure\n");
1370 return;
1371 }
1372
1373 ar = ath6kl_priv(dev);
1374
1375 destroy_workqueue(ar->ath6kl_wq);
1376
1377 if (ar->htc_target)
Kalle Vaload226ec2011-08-10 09:49:12 +03001378 ath6kl_htc_cleanup(ar->htc_target);
Kalle Valobdcd8172011-07-18 00:22:30 +03001379
1380 aggr_module_destroy(ar->aggr_cntxt);
1381
1382 ath6kl_cookie_cleanup(ar);
1383
1384 ath6kl_cleanup_amsdu_rxbufs(ar);
1385
1386 ath6kl_bmi_cleanup(ar);
1387
Kalle Valobdf53962011-09-02 10:32:04 +03001388 ath6kl_debug_cleanup(ar);
1389
Kalle Valobdcd8172011-07-18 00:22:30 +03001390 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) {
1391 unregister_netdev(dev);
1392 clear_bit(NETDEV_REGISTERED, &ar->flag);
1393 }
1394
1395 free_netdev(dev);
1396
Vasanthakumar Thiagarajan852bd9d2011-07-21 14:24:54 +05301397 wlan_node_table_cleanup(&ar->scan_table);
1398
Raja Mani19703572011-08-04 19:26:30 +05301399 kfree(ar->fw_board);
1400 kfree(ar->fw_otp);
1401 kfree(ar->fw);
1402 kfree(ar->fw_patch);
1403
Kalle Valobdcd8172011-07-18 00:22:30 +03001404 ath6kl_cfg80211_deinit(ar);
1405}