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Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / net / wireless / ath / ath6kl / init.c
blob7f55be3092d1c63698bc2f9d83d88d6ce2769868
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/moduleparam.h>
19 #include <linux/errno.h>
20 #include <linux/of.h>
21 #include <linux/mmc/sdio_func.h>
22 #include "core.h"
23 #include "cfg80211.h"
24 #include "target.h"
25 #include "debug.h"
26 #include "hif-ops.h"
27
28 unsigned int debug_mask;
29 static unsigned int testmode;
30 static bool suspend_cutpower;
31
32 module_param(debug_mask, uint, 0644);
33 module_param(testmode, uint, 0644);
34 module_param(suspend_cutpower, bool, 0444);
35
36 static const struct ath6kl_hw hw_list[] = {
37 {
38 .id = AR6003_HW_2_0_VERSION,
39 .name = "ar6003 hw 2.0",
40 .dataset_patch_addr = 0x57e884,
41 .app_load_addr = 0x543180,
42 .board_ext_data_addr = 0x57e500,
43 .reserved_ram_size = 6912,
44 .refclk_hz = 26000000,
45 .uarttx_pin = 8,
46
47 /* hw2.0 needs override address hardcoded */
48 .app_start_override_addr = 0x944C00,
49
50 .fw_otp = AR6003_HW_2_0_OTP_FILE,
51 .fw = AR6003_HW_2_0_FIRMWARE_FILE,
52 .fw_tcmd = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
53 .fw_patch = AR6003_HW_2_0_PATCH_FILE,
54 .fw_api2 = AR6003_HW_2_0_FIRMWARE_2_FILE,
55 .fw_board = AR6003_HW_2_0_BOARD_DATA_FILE,
56 .fw_default_board = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE,
57 },
58 {
59 .id = AR6003_HW_2_1_1_VERSION,
60 .name = "ar6003 hw 2.1.1",
61 .dataset_patch_addr = 0x57ff74,
62 .app_load_addr = 0x1234,
63 .board_ext_data_addr = 0x542330,
64 .reserved_ram_size = 512,
65 .refclk_hz = 26000000,
66 .uarttx_pin = 8,
67
68 .fw_otp = AR6003_HW_2_1_1_OTP_FILE,
69 .fw = AR6003_HW_2_1_1_FIRMWARE_FILE,
70 .fw_tcmd = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
71 .fw_patch = AR6003_HW_2_1_1_PATCH_FILE,
72 .fw_api2 = AR6003_HW_2_1_1_FIRMWARE_2_FILE,
73 .fw_board = AR6003_HW_2_1_1_BOARD_DATA_FILE,
74 .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
75 },
76 {
77 .id = AR6004_HW_1_0_VERSION,
78 .name = "ar6004 hw 1.0",
79 .dataset_patch_addr = 0x57e884,
80 .app_load_addr = 0x1234,
81 .board_ext_data_addr = 0x437000,
82 .reserved_ram_size = 19456,
83 .board_addr = 0x433900,
84 .refclk_hz = 26000000,
85 .uarttx_pin = 11,
86
87 .fw = AR6004_HW_1_0_FIRMWARE_FILE,
88 .fw_api2 = AR6004_HW_1_0_FIRMWARE_2_FILE,
89 .fw_board = AR6004_HW_1_0_BOARD_DATA_FILE,
90 .fw_default_board = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
91 },
92 {
93 .id = AR6004_HW_1_1_VERSION,
94 .name = "ar6004 hw 1.1",
95 .dataset_patch_addr = 0x57e884,
96 .app_load_addr = 0x1234,
97 .board_ext_data_addr = 0x437000,
98 .reserved_ram_size = 11264,
99 .board_addr = 0x43d400,
100 .refclk_hz = 40000000,
101 .uarttx_pin = 11,
102
103 .fw = AR6004_HW_1_1_FIRMWARE_FILE,
104 .fw_api2 = AR6004_HW_1_1_FIRMWARE_2_FILE,
105 .fw_board = AR6004_HW_1_1_BOARD_DATA_FILE,
106 .fw_default_board = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
107 },
108 };
109
110 /*
111 * Include definitions here that can be used to tune the WLAN module
112 * behavior. Different customers can tune the behavior as per their needs,
113 * here.
114 */
115
116 /*
117 * This configuration item enable/disable keepalive support.
118 * Keepalive support: In the absence of any data traffic to AP, null
119 * frames will be sent to the AP at periodic interval, to keep the association
120 * active. This configuration item defines the periodic interval.
121 * Use value of zero to disable keepalive support
122 * Default: 60 seconds
123 */
124 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
125
126 /*
127 * This configuration item sets the value of disconnect timeout
128 * Firmware delays sending the disconnec event to the host for this
129 * timeout after is gets disconnected from the current AP.
130 * If the firmware successly roams within the disconnect timeout
131 * it sends a new connect event
132 */
133 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
134
135
136 #define ATH6KL_DATA_OFFSET 64
137 struct sk_buff *ath6kl_buf_alloc(int size)
138 {
139 struct sk_buff *skb;
140 u16 reserved;
141
142 /* Add chacheline space at front and back of buffer */
143 reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
144 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
145 skb = dev_alloc_skb(size + reserved);
146
147 if (skb)
148 skb_reserve(skb, reserved - L1_CACHE_BYTES);
149 return skb;
150 }
151
152 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
153 {
154 vif->ssid_len = 0;
155 memset(vif->ssid, 0, sizeof(vif->ssid));
156
157 vif->dot11_auth_mode = OPEN_AUTH;
158 vif->auth_mode = NONE_AUTH;
159 vif->prwise_crypto = NONE_CRYPT;
160 vif->prwise_crypto_len = 0;
161 vif->grp_crypto = NONE_CRYPT;
162 vif->grp_crypto_len = 0;
163 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
164 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
165 memset(vif->bssid, 0, sizeof(vif->bssid));
166 vif->bss_ch = 0;
167 }
168
169 static int ath6kl_set_host_app_area(struct ath6kl *ar)
170 {
171 u32 address, data;
172 struct host_app_area host_app_area;
173
174 /* Fetch the address of the host_app_area_s
175 * instance in the host interest area */
176 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
177 address = TARG_VTOP(ar->target_type, address);
178
179 if (ath6kl_diag_read32(ar, address, &data))
180 return -EIO;
181
182 address = TARG_VTOP(ar->target_type, data);
183 host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
184 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
185 sizeof(struct host_app_area)))
186 return -EIO;
187
188 return 0;
189 }
190
191 static inline void set_ac2_ep_map(struct ath6kl *ar,
192 u8 ac,
193 enum htc_endpoint_id ep)
194 {
195 ar->ac2ep_map[ac] = ep;
196 ar->ep2ac_map[ep] = ac;
197 }
198
199 /* connect to a service */
200 static int ath6kl_connectservice(struct ath6kl *ar,
201 struct htc_service_connect_req *con_req,
202 char *desc)
203 {
204 int status;
205 struct htc_service_connect_resp response;
206
207 memset(&response, 0, sizeof(response));
208
209 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
210 if (status) {
211 ath6kl_err("failed to connect to %s service status:%d\n",
212 desc, status);
213 return status;
214 }
215
216 switch (con_req->svc_id) {
217 case WMI_CONTROL_SVC:
218 if (test_bit(WMI_ENABLED, &ar->flag))
219 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
220 ar->ctrl_ep = response.endpoint;
221 break;
222 case WMI_DATA_BE_SVC:
223 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
224 break;
225 case WMI_DATA_BK_SVC:
226 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
227 break;
228 case WMI_DATA_VI_SVC:
229 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
230 break;
231 case WMI_DATA_VO_SVC:
232 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
233 break;
234 default:
235 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
236 return -EINVAL;
237 }
238
239 return 0;
240 }
241
242 static int ath6kl_init_service_ep(struct ath6kl *ar)
243 {
244 struct htc_service_connect_req connect;
245
246 memset(&connect, 0, sizeof(connect));
247
248 /* these fields are the same for all service endpoints */
249 connect.ep_cb.rx = ath6kl_rx;
250 connect.ep_cb.rx_refill = ath6kl_rx_refill;
251 connect.ep_cb.tx_full = ath6kl_tx_queue_full;
252
253 /*
254 * Set the max queue depth so that our ath6kl_tx_queue_full handler
255 * gets called.
256 */
257 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
258 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
259 if (!connect.ep_cb.rx_refill_thresh)
260 connect.ep_cb.rx_refill_thresh++;
261
262 /* connect to control service */
263 connect.svc_id = WMI_CONTROL_SVC;
264 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
265 return -EIO;
266
267 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
268
269 /*
270 * Limit the HTC message size on the send path, although e can
271 * receive A-MSDU frames of 4K, we will only send ethernet-sized
272 * (802.3) frames on the send path.
273 */
274 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
275
276 /*
277 * To reduce the amount of committed memory for larger A_MSDU
278 * frames, use the recv-alloc threshold mechanism for larger
279 * packets.
280 */
281 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
282 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
283
284 /*
285 * For the remaining data services set the connection flag to
286 * reduce dribbling, if configured to do so.
287 */
288 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
289 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
290 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
291
292 connect.svc_id = WMI_DATA_BE_SVC;
293
294 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
295 return -EIO;
296
297 /* connect to back-ground map this to WMI LOW_PRI */
298 connect.svc_id = WMI_DATA_BK_SVC;
299 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
300 return -EIO;
301
302 /* connect to Video service, map this to to HI PRI */
303 connect.svc_id = WMI_DATA_VI_SVC;
304 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
305 return -EIO;
306
307 /*
308 * Connect to VO service, this is currently not mapped to a WMI
309 * priority stream due to historical reasons. WMI originally
310 * defined 3 priorities over 3 mailboxes We can change this when
311 * WMI is reworked so that priorities are not dependent on
312 * mailboxes.
313 */
314 connect.svc_id = WMI_DATA_VO_SVC;
315 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
316 return -EIO;
317
318 return 0;
319 }
320
321 void ath6kl_init_control_info(struct ath6kl_vif *vif)
322 {
323 ath6kl_init_profile_info(vif);
324 vif->def_txkey_index = 0;
325 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
326 vif->ch_hint = 0;
327 }
328
329 /*
330 * Set HTC/Mbox operational parameters, this can only be called when the
331 * target is in the BMI phase.
332 */
333 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
334 u8 htc_ctrl_buf)
335 {
336 int status;
337 u32 blk_size;
338
339 blk_size = ar->mbox_info.block_size;
340
341 if (htc_ctrl_buf)
342 blk_size |= ((u32)htc_ctrl_buf) << 16;
343
344 /* set the host interest area for the block size */
345 status = ath6kl_bmi_write(ar,
346 ath6kl_get_hi_item_addr(ar,
347 HI_ITEM(hi_mbox_io_block_sz)),
348 (u8 *)&blk_size,
349 4);
350 if (status) {
351 ath6kl_err("bmi_write_memory for IO block size failed\n");
352 goto out;
353 }
354
355 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
356 blk_size,
357 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
358
359 if (mbox_isr_yield_val) {
360 /* set the host interest area for the mbox ISR yield limit */
361 status = ath6kl_bmi_write(ar,
362 ath6kl_get_hi_item_addr(ar,
363 HI_ITEM(hi_mbox_isr_yield_limit)),
364 (u8 *)&mbox_isr_yield_val,
365 4);
366 if (status) {
367 ath6kl_err("bmi_write_memory for yield limit failed\n");
368 goto out;
369 }
370 }
371
372 out:
373 return status;
374 }
375
376 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
377 {
378 int status = 0;
379 int ret;
380
381 /*
382 * Configure the device for rx dot11 header rules. "0,0" are the
383 * default values. Required if checksum offload is needed. Set
384 * RxMetaVersion to 2.
385 */
386 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
387 ar->rx_meta_ver, 0, 0)) {
388 ath6kl_err("unable to set the rx frame format\n");
389 status = -EIO;
390 }
391
392 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
393 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
394 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
395 ath6kl_err("unable to set power save fail event policy\n");
396 status = -EIO;
397 }
398
399 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
400 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
401 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
402 ath6kl_err("unable to set barker preamble policy\n");
403 status = -EIO;
404 }
405
406 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
407 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
408 ath6kl_err("unable to set keep alive interval\n");
409 status = -EIO;
410 }
411
412 if (ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
413 WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
414 ath6kl_err("unable to set disconnect timeout\n");
415 status = -EIO;
416 }
417
418 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
419 if (ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED)) {
420 ath6kl_err("unable to set txop bursting\n");
421 status = -EIO;
422 }
423
424 if (ar->p2p && (ar->vif_max == 1 || idx)) {
425 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
426 P2P_FLAG_CAPABILITIES_REQ |
427 P2P_FLAG_MACADDR_REQ |
428 P2P_FLAG_HMODEL_REQ);
429 if (ret) {
430 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
431 "capabilities (%d) - assuming P2P not "
432 "supported\n", ret);
433 ar->p2p = false;
434 }
435 }
436
437 if (ar->p2p && (ar->vif_max == 1 || idx)) {
438 /* Enable Probe Request reporting for P2P */
439 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
440 if (ret) {
441 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
442 "Request reporting (%d)\n", ret);
443 }
444 }
445
446 return status;
447 }
448
449 int ath6kl_configure_target(struct ath6kl *ar)
450 {
451 u32 param, ram_reserved_size;
452 u8 fw_iftype, fw_mode = 0, fw_submode = 0;
453 int i, status;
454
455 /*
456 * Note: Even though the firmware interface type is
457 * chosen as BSS_STA for all three interfaces, can
458 * be configured to IBSS/AP as long as the fw submode
459 * remains normal mode (0 - AP, STA and IBSS). But
460 * due to an target assert in firmware only one interface is
461 * configured for now.
462 */
463 fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
464
465 for (i = 0; i < ar->vif_max; i++)
466 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
467
468 /*
469 * By default, submodes :
470 * vif[0] - AP/STA/IBSS
471 * vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
472 * vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
473 */
474
475 for (i = 0; i < ar->max_norm_iface; i++)
476 fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
477 (i * HI_OPTION_FW_SUBMODE_BITS);
478
479 for (i = ar->max_norm_iface; i < ar->vif_max; i++)
480 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
481 (i * HI_OPTION_FW_SUBMODE_BITS);
482
483 if (ar->p2p && ar->vif_max == 1)
484 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
485
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 |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
507 param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
508 param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
509
510 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
511 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
512
513 if (ath6kl_bmi_write(ar,
514 ath6kl_get_hi_item_addr(ar,
515 HI_ITEM(hi_option_flag)),
516 (u8 *)&param,
517 4) != 0) {
518 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
519 return -EIO;
520 }
521
522 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
523
524 /*
525 * Hardcode the address use for the extended board data
526 * Ideally this should be pre-allocate by the OS at boot time
527 * But since it is a new feature and board data is loaded
528 * at init time, we have to workaround this from host.
529 * It is difficult to patch the firmware boot code,
530 * but possible in theory.
531 */
532
533 param = ar->hw.board_ext_data_addr;
534 ram_reserved_size = ar->hw.reserved_ram_size;
535
536 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
537 HI_ITEM(hi_board_ext_data)),
538 (u8 *)&param, 4) != 0) {
539 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
540 return -EIO;
541 }
542
543 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
544 HI_ITEM(hi_end_ram_reserve_sz)),
545 (u8 *)&ram_reserved_size, 4) != 0) {
546 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
547 return -EIO;
548 }
549
550 /* set the block size for the target */
551 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
552 /* use default number of control buffers */
553 return -EIO;
554
555 /* Configure GPIO AR600x UART */
556 param = ar->hw.uarttx_pin;
557 status = ath6kl_bmi_write(ar,
558 ath6kl_get_hi_item_addr(ar,
559 HI_ITEM(hi_dbg_uart_txpin)),
560 (u8 *)&param, 4);
561 if (status)
562 return status;
563
564 /* Configure target refclk_hz */
565 param = ar->hw.refclk_hz;
566 status = ath6kl_bmi_write(ar,
567 ath6kl_get_hi_item_addr(ar,
568 HI_ITEM(hi_refclk_hz)),
569 (u8 *)&param, 4);
570 if (status)
571 return status;
572
573 return 0;
574 }
575
576 void ath6kl_core_free(struct ath6kl *ar)
577 {
578 wiphy_free(ar->wiphy);
579 }
580
581 void ath6kl_core_cleanup(struct ath6kl *ar)
582 {
583 ath6kl_hif_power_off(ar);
584
585 destroy_workqueue(ar->ath6kl_wq);
586
587 if (ar->htc_target)
588 ath6kl_htc_cleanup(ar->htc_target);
589
590 ath6kl_cookie_cleanup(ar);
591
592 ath6kl_cleanup_amsdu_rxbufs(ar);
593
594 ath6kl_bmi_cleanup(ar);
595
596 ath6kl_debug_cleanup(ar);
597
598 kfree(ar->fw_board);
599 kfree(ar->fw_otp);
600 kfree(ar->fw);
601 kfree(ar->fw_patch);
602
603 ath6kl_deinit_ieee80211_hw(ar);
604 }
605
606 /* firmware upload */
607 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
608 u8 **fw, size_t *fw_len)
609 {
610 const struct firmware *fw_entry;
611 int ret;
612
613 ret = request_firmware(&fw_entry, filename, ar->dev);
614 if (ret)
615 return ret;
616
617 *fw_len = fw_entry->size;
618 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
619
620 if (*fw == NULL)
621 ret = -ENOMEM;
622
623 release_firmware(fw_entry);
624
625 return ret;
626 }
627
628 #ifdef CONFIG_OF
629 static const char *get_target_ver_dir(const struct ath6kl *ar)
630 {
631 switch (ar->version.target_ver) {
632 case AR6003_HW_1_0_VERSION:
633 return "ath6k/AR6003/hw1.0";
634 case AR6003_HW_2_0_VERSION:
635 return "ath6k/AR6003/hw2.0";
636 case AR6003_HW_2_1_1_VERSION:
637 return "ath6k/AR6003/hw2.1.1";
638 }
639 ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__,
640 ar->version.target_ver);
641 return NULL;
642 }
643
644 /*
645 * Check the device tree for a board-id and use it to construct
646 * the pathname to the firmware file. Used (for now) to find a
647 * fallback to the "bdata.bin" file--typically a symlink to the
648 * appropriate board-specific file.
649 */
650 static bool check_device_tree(struct ath6kl *ar)
651 {
652 static const char *board_id_prop = "atheros,board-id";
653 struct device_node *node;
654 char board_filename[64];
655 const char *board_id;
656 int ret;
657
658 for_each_compatible_node(node, NULL, "atheros,ath6kl") {
659 board_id = of_get_property(node, board_id_prop, NULL);
660 if (board_id == NULL) {
661 ath6kl_warn("No \"%s\" property on %s node.\n",
662 board_id_prop, node->name);
663 continue;
664 }
665 snprintf(board_filename, sizeof(board_filename),
666 "%s/bdata.%s.bin", get_target_ver_dir(ar), board_id);
667
668 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
669 &ar->fw_board_len);
670 if (ret) {
671 ath6kl_err("Failed to get DT board file %s: %d\n",
672 board_filename, ret);
673 continue;
674 }
675 return true;
676 }
677 return false;
678 }
679 #else
680 static bool check_device_tree(struct ath6kl *ar)
681 {
682 return false;
683 }
684 #endif /* CONFIG_OF */
685
686 static int ath6kl_fetch_board_file(struct ath6kl *ar)
687 {
688 const char *filename;
689 int ret;
690
691 if (ar->fw_board != NULL)
692 return 0;
693
694 if (WARN_ON(ar->hw.fw_board == NULL))
695 return -EINVAL;
696
697 filename = ar->hw.fw_board;
698
699 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
700 &ar->fw_board_len);
701 if (ret == 0) {
702 /* managed to get proper board file */
703 return 0;
704 }
705
706 if (check_device_tree(ar)) {
707 /* got board file from device tree */
708 return 0;
709 }
710
711 /* there was no proper board file, try to use default instead */
712 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
713 filename, ret);
714
715 filename = ar->hw.fw_default_board;
716
717 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
718 &ar->fw_board_len);
719 if (ret) {
720 ath6kl_err("Failed to get default board file %s: %d\n",
721 filename, ret);
722 return ret;
723 }
724
725 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
726 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
727
728 return 0;
729 }
730
731 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
732 {
733 const char *filename;
734 int ret;
735
736 if (ar->fw_otp != NULL)
737 return 0;
738
739 if (ar->hw.fw_otp == NULL) {
740 ath6kl_dbg(ATH6KL_DBG_BOOT,
741 "no OTP file configured for this hw\n");
742 return 0;
743 }
744
745 filename = ar->hw.fw_otp;
746
747 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
748 &ar->fw_otp_len);
749 if (ret) {
750 ath6kl_err("Failed to get OTP file %s: %d\n",
751 filename, ret);
752 return ret;
753 }
754
755 return 0;
756 }
757
758 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
759 {
760 const char *filename;
761 int ret;
762
763 if (ar->fw != NULL)
764 return 0;
765
766 if (testmode) {
767 if (ar->hw.fw_tcmd == NULL) {
768 ath6kl_warn("testmode not supported\n");
769 return -EOPNOTSUPP;
770 }
771
772 filename = ar->hw.fw_tcmd;
773
774 set_bit(TESTMODE, &ar->flag);
775
776 goto get_fw;
777 }
778
779 if (WARN_ON(ar->hw.fw == NULL))
780 return -EINVAL;
781
782 filename = ar->hw.fw;
783
784 get_fw:
785 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
786 if (ret) {
787 ath6kl_err("Failed to get firmware file %s: %d\n",
788 filename, ret);
789 return ret;
790 }
791
792 return 0;
793 }
794
795 static int ath6kl_fetch_patch_file(struct ath6kl *ar)
796 {
797 const char *filename;
798 int ret;
799
800 if (ar->fw_patch != NULL)
801 return 0;
802
803 if (ar->hw.fw_patch == NULL)
804 return 0;
805
806 filename = ar->hw.fw_patch;
807
808 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
809 &ar->fw_patch_len);
810 if (ret) {
811 ath6kl_err("Failed to get patch file %s: %d\n",
812 filename, ret);
813 return ret;
814 }
815
816 return 0;
817 }
818
819 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
820 {
821 int ret;
822
823 ret = ath6kl_fetch_otp_file(ar);
824 if (ret)
825 return ret;
826
827 ret = ath6kl_fetch_fw_file(ar);
828 if (ret)
829 return ret;
830
831 ret = ath6kl_fetch_patch_file(ar);
832 if (ret)
833 return ret;
834
835 return 0;
836 }
837
838 static int ath6kl_fetch_fw_api2(struct ath6kl *ar)
839 {
840 size_t magic_len, len, ie_len;
841 const struct firmware *fw;
842 struct ath6kl_fw_ie *hdr;
843 const char *filename;
844 const u8 *data;
845 int ret, ie_id, i, index, bit;
846 __le32 *val;
847
848 if (ar->hw.fw_api2 == NULL)
849 return -EOPNOTSUPP;
850
851 filename = ar->hw.fw_api2;
852
853 ret = request_firmware(&fw, filename, ar->dev);
854 if (ret)
855 return ret;
856
857 data = fw->data;
858 len = fw->size;
859
860 /* magic also includes the null byte, check that as well */
861 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
862
863 if (len < magic_len) {
864 ret = -EINVAL;
865 goto out;
866 }
867
868 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
869 ret = -EINVAL;
870 goto out;
871 }
872
873 len -= magic_len;
874 data += magic_len;
875
876 /* loop elements */
877 while (len > sizeof(struct ath6kl_fw_ie)) {
878 /* hdr is unaligned! */
879 hdr = (struct ath6kl_fw_ie *) data;
880
881 ie_id = le32_to_cpup(&hdr->id);
882 ie_len = le32_to_cpup(&hdr->len);
883
884 len -= sizeof(*hdr);
885 data += sizeof(*hdr);
886
887 if (len < ie_len) {
888 ret = -EINVAL;
889 goto out;
890 }
891
892 switch (ie_id) {
893 case ATH6KL_FW_IE_OTP_IMAGE:
894 ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
895 ie_len);
896
897 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
898
899 if (ar->fw_otp == NULL) {
900 ret = -ENOMEM;
901 goto out;
902 }
903
904 ar->fw_otp_len = ie_len;
905 break;
906 case ATH6KL_FW_IE_FW_IMAGE:
907 ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
908 ie_len);
909
910 ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
911
912 if (ar->fw == NULL) {
913 ret = -ENOMEM;
914 goto out;
915 }
916
917 ar->fw_len = ie_len;
918 break;
919 case ATH6KL_FW_IE_PATCH_IMAGE:
920 ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
921 ie_len);
922
923 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
924
925 if (ar->fw_patch == NULL) {
926 ret = -ENOMEM;
927 goto out;
928 }
929
930 ar->fw_patch_len = ie_len;
931 break;
932 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
933 val = (__le32 *) data;
934 ar->hw.reserved_ram_size = le32_to_cpup(val);
935
936 ath6kl_dbg(ATH6KL_DBG_BOOT,
937 "found reserved ram size ie 0x%d\n",
938 ar->hw.reserved_ram_size);
939 break;
940 case ATH6KL_FW_IE_CAPABILITIES:
941 if (ie_len < DIV_ROUND_UP(ATH6KL_FW_CAPABILITY_MAX, 8))
942 break;
943
944 ath6kl_dbg(ATH6KL_DBG_BOOT,
945 "found firmware capabilities ie (%zd B)\n",
946 ie_len);
947
948 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
949 index = i / 8;
950 bit = i % 8;
951
952 if (data[index] & (1 << bit))
953 __set_bit(i, ar->fw_capabilities);
954 }
955
956 ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
957 ar->fw_capabilities,
958 sizeof(ar->fw_capabilities));
959 break;
960 case ATH6KL_FW_IE_PATCH_ADDR:
961 if (ie_len != sizeof(*val))
962 break;
963
964 val = (__le32 *) data;
965 ar->hw.dataset_patch_addr = le32_to_cpup(val);
966
967 ath6kl_dbg(ATH6KL_DBG_BOOT,
968 "found patch address ie 0x%x\n",
969 ar->hw.dataset_patch_addr);
970 break;
971 case ATH6KL_FW_IE_BOARD_ADDR:
972 if (ie_len != sizeof(*val))
973 break;
974
975 val = (__le32 *) data;
976 ar->hw.board_addr = le32_to_cpup(val);
977
978 ath6kl_dbg(ATH6KL_DBG_BOOT,
979 "found board address ie 0x%x\n",
980 ar->hw.board_addr);
981 break;
982 case ATH6KL_FW_IE_VIF_MAX:
983 if (ie_len != sizeof(*val))
984 break;
985
986 val = (__le32 *) data;
987 ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
988 ATH6KL_VIF_MAX);
989
990 if (ar->vif_max > 1 && !ar->p2p)
991 ar->max_norm_iface = 2;
992
993 ath6kl_dbg(ATH6KL_DBG_BOOT,
994 "found vif max ie %d\n", ar->vif_max);
995 break;
996 default:
997 ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
998 le32_to_cpup(&hdr->id));
999 break;
1000 }
1001
1002 len -= ie_len;
1003 data += ie_len;
1004 };
1005
1006 ret = 0;
1007 out:
1008 release_firmware(fw);
1009
1010 return ret;
1011 }
1012
1013 static int ath6kl_fetch_firmwares(struct ath6kl *ar)
1014 {
1015 int ret;
1016
1017 ret = ath6kl_fetch_board_file(ar);
1018 if (ret)
1019 return ret;
1020
1021 ret = ath6kl_fetch_fw_api2(ar);
1022 if (ret == 0) {
1023 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 2\n");
1024 return 0;
1025 }
1026
1027 ret = ath6kl_fetch_fw_api1(ar);
1028 if (ret)
1029 return ret;
1030
1031 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 1\n");
1032
1033 return 0;
1034 }
1035
1036 static int ath6kl_upload_board_file(struct ath6kl *ar)
1037 {
1038 u32 board_address, board_ext_address, param;
1039 u32 board_data_size, board_ext_data_size;
1040 int ret;
1041
1042 if (WARN_ON(ar->fw_board == NULL))
1043 return -ENOENT;
1044
1045 /*
1046 * Determine where in Target RAM to write Board Data.
1047 * For AR6004, host determine Target RAM address for
1048 * writing board data.
1049 */
1050 if (ar->hw.board_addr != 0) {
1051 board_address = ar->hw.board_addr;
1052 ath6kl_bmi_write(ar,
1053 ath6kl_get_hi_item_addr(ar,
1054 HI_ITEM(hi_board_data)),
1055 (u8 *) &board_address, 4);
1056 } else {
1057 ath6kl_bmi_read(ar,
1058 ath6kl_get_hi_item_addr(ar,
1059 HI_ITEM(hi_board_data)),
1060 (u8 *) &board_address, 4);
1061 }
1062
1063 /* determine where in target ram to write extended board data */
1064 ath6kl_bmi_read(ar,
1065 ath6kl_get_hi_item_addr(ar,
1066 HI_ITEM(hi_board_ext_data)),
1067 (u8 *) &board_ext_address, 4);
1068
1069 if (ar->target_type == TARGET_TYPE_AR6003 &&
1070 board_ext_address == 0) {
1071 ath6kl_err("Failed to get board file target address.\n");
1072 return -EINVAL;
1073 }
1074
1075 switch (ar->target_type) {
1076 case TARGET_TYPE_AR6003:
1077 board_data_size = AR6003_BOARD_DATA_SZ;
1078 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1079 break;
1080 case TARGET_TYPE_AR6004:
1081 board_data_size = AR6004_BOARD_DATA_SZ;
1082 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1083 break;
1084 default:
1085 WARN_ON(1);
1086 return -EINVAL;
1087 break;
1088 }
1089
1090 if (board_ext_address &&
1091 ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1092
1093 /* write extended board data */
1094 ath6kl_dbg(ATH6KL_DBG_BOOT,
1095 "writing extended board data to 0x%x (%d B)\n",
1096 board_ext_address, board_ext_data_size);
1097
1098 ret = ath6kl_bmi_write(ar, board_ext_address,
1099 ar->fw_board + board_data_size,
1100 board_ext_data_size);
1101 if (ret) {
1102 ath6kl_err("Failed to write extended board data: %d\n",
1103 ret);
1104 return ret;
1105 }
1106
1107 /* record that extended board data is initialized */
1108 param = (board_ext_data_size << 16) | 1;
1109
1110 ath6kl_bmi_write(ar,
1111 ath6kl_get_hi_item_addr(ar,
1112 HI_ITEM(hi_board_ext_data_config)),
1113 (unsigned char *) &param, 4);
1114 }
1115
1116 if (ar->fw_board_len < board_data_size) {
1117 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1118 ret = -EINVAL;
1119 return ret;
1120 }
1121
1122 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1123 board_address, board_data_size);
1124
1125 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1126 board_data_size);
1127
1128 if (ret) {
1129 ath6kl_err("Board file bmi write failed: %d\n", ret);
1130 return ret;
1131 }
1132
1133 /* record the fact that Board Data IS initialized */
1134 param = 1;
1135 ath6kl_bmi_write(ar,
1136 ath6kl_get_hi_item_addr(ar,
1137 HI_ITEM(hi_board_data_initialized)),
1138 (u8 *)&param, 4);
1139
1140 return ret;
1141 }
1142
1143 static int ath6kl_upload_otp(struct ath6kl *ar)
1144 {
1145 u32 address, param;
1146 bool from_hw = false;
1147 int ret;
1148
1149 if (ar->fw_otp == NULL)
1150 return 0;
1151
1152 address = ar->hw.app_load_addr;
1153
1154 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1155 ar->fw_otp_len);
1156
1157 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1158 ar->fw_otp_len);
1159 if (ret) {
1160 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1161 return ret;
1162 }
1163
1164 /* read firmware start address */
1165 ret = ath6kl_bmi_read(ar,
1166 ath6kl_get_hi_item_addr(ar,
1167 HI_ITEM(hi_app_start)),
1168 (u8 *) &address, sizeof(address));
1169
1170 if (ret) {
1171 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1172 return ret;
1173 }
1174
1175 if (ar->hw.app_start_override_addr == 0) {
1176 ar->hw.app_start_override_addr = address;
1177 from_hw = true;
1178 }
1179
1180 ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1181 from_hw ? " (from hw)" : "",
1182 ar->hw.app_start_override_addr);
1183
1184 /* execute the OTP code */
1185 ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1186 ar->hw.app_start_override_addr);
1187 param = 0;
1188 ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1189
1190 return ret;
1191 }
1192
1193 static int ath6kl_upload_firmware(struct ath6kl *ar)
1194 {
1195 u32 address;
1196 int ret;
1197
1198 if (WARN_ON(ar->fw == NULL))
1199 return 0;
1200
1201 address = ar->hw.app_load_addr;
1202
1203 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1204 address, ar->fw_len);
1205
1206 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1207
1208 if (ret) {
1209 ath6kl_err("Failed to write firmware: %d\n", ret);
1210 return ret;
1211 }
1212
1213 /*
1214 * Set starting address for firmware
1215 * Don't need to setup app_start override addr on AR6004
1216 */
1217 if (ar->target_type != TARGET_TYPE_AR6004) {
1218 address = ar->hw.app_start_override_addr;
1219 ath6kl_bmi_set_app_start(ar, address);
1220 }
1221 return ret;
1222 }
1223
1224 static int ath6kl_upload_patch(struct ath6kl *ar)
1225 {
1226 u32 address, param;
1227 int ret;
1228
1229 if (ar->fw_patch == NULL)
1230 return 0;
1231
1232 address = ar->hw.dataset_patch_addr;
1233
1234 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1235 address, ar->fw_patch_len);
1236
1237 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1238 if (ret) {
1239 ath6kl_err("Failed to write patch file: %d\n", ret);
1240 return ret;
1241 }
1242
1243 param = address;
1244 ath6kl_bmi_write(ar,
1245 ath6kl_get_hi_item_addr(ar,
1246 HI_ITEM(hi_dset_list_head)),
1247 (unsigned char *) &param, 4);
1248
1249 return 0;
1250 }
1251
1252 static int ath6kl_init_upload(struct ath6kl *ar)
1253 {
1254 u32 param, options, sleep, address;
1255 int status = 0;
1256
1257 if (ar->target_type != TARGET_TYPE_AR6003 &&
1258 ar->target_type != TARGET_TYPE_AR6004)
1259 return -EINVAL;
1260
1261 /* temporarily disable system sleep */
1262 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1263 status = ath6kl_bmi_reg_read(ar, address, &param);
1264 if (status)
1265 return status;
1266
1267 options = param;
1268
1269 param |= ATH6KL_OPTION_SLEEP_DISABLE;
1270 status = ath6kl_bmi_reg_write(ar, address, param);
1271 if (status)
1272 return status;
1273
1274 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1275 status = ath6kl_bmi_reg_read(ar, address, &param);
1276 if (status)
1277 return status;
1278
1279 sleep = param;
1280
1281 param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1282 status = ath6kl_bmi_reg_write(ar, address, param);
1283 if (status)
1284 return status;
1285
1286 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1287 options, sleep);
1288
1289 /* program analog PLL register */
1290 /* no need to control 40/44MHz clock on AR6004 */
1291 if (ar->target_type != TARGET_TYPE_AR6004) {
1292 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1293 0xF9104001);
1294
1295 if (status)
1296 return status;
1297
1298 /* Run at 80/88MHz by default */
1299 param = SM(CPU_CLOCK_STANDARD, 1);
1300
1301 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1302 status = ath6kl_bmi_reg_write(ar, address, param);
1303 if (status)
1304 return status;
1305 }
1306
1307 param = 0;
1308 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1309 param = SM(LPO_CAL_ENABLE, 1);
1310 status = ath6kl_bmi_reg_write(ar, address, param);
1311 if (status)
1312 return status;
1313
1314 /* WAR to avoid SDIO CRC err */
1315 if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
1316 ath6kl_err("temporary war to avoid sdio crc error\n");
1317
1318 param = 0x20;
1319
1320 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1321 status = ath6kl_bmi_reg_write(ar, address, param);
1322 if (status)
1323 return status;
1324
1325 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1326 status = ath6kl_bmi_reg_write(ar, address, param);
1327 if (status)
1328 return status;
1329
1330 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1331 status = ath6kl_bmi_reg_write(ar, address, param);
1332 if (status)
1333 return status;
1334
1335 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1336 status = ath6kl_bmi_reg_write(ar, address, param);
1337 if (status)
1338 return status;
1339 }
1340
1341 /* write EEPROM data to Target RAM */
1342 status = ath6kl_upload_board_file(ar);
1343 if (status)
1344 return status;
1345
1346 /* transfer One time Programmable data */
1347 status = ath6kl_upload_otp(ar);
1348 if (status)
1349 return status;
1350
1351 /* Download Target firmware */
1352 status = ath6kl_upload_firmware(ar);
1353 if (status)
1354 return status;
1355
1356 status = ath6kl_upload_patch(ar);
1357 if (status)
1358 return status;
1359
1360 /* Restore system sleep */
1361 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1362 status = ath6kl_bmi_reg_write(ar, address, sleep);
1363 if (status)
1364 return status;
1365
1366 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1367 param = options | 0x20;
1368 status = ath6kl_bmi_reg_write(ar, address, param);
1369 if (status)
1370 return status;
1371
1372 return status;
1373 }
1374
1375 static int ath6kl_init_hw_params(struct ath6kl *ar)
1376 {
1377 const struct ath6kl_hw *hw;
1378 int i;
1379
1380 for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1381 hw = &hw_list[i];
1382
1383 if (hw->id == ar->version.target_ver)
1384 break;
1385 }
1386
1387 if (i == ARRAY_SIZE(hw_list)) {
1388 ath6kl_err("Unsupported hardware version: 0x%x\n",
1389 ar->version.target_ver);
1390 return -EINVAL;
1391 }
1392
1393 ar->hw = *hw;
1394
1395 ath6kl_dbg(ATH6KL_DBG_BOOT,
1396 "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1397 ar->version.target_ver, ar->target_type,
1398 ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1399 ath6kl_dbg(ATH6KL_DBG_BOOT,
1400 "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1401 ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1402 ar->hw.reserved_ram_size);
1403 ath6kl_dbg(ATH6KL_DBG_BOOT,
1404 "refclk_hz %d uarttx_pin %d",
1405 ar->hw.refclk_hz, ar->hw.uarttx_pin);
1406
1407 return 0;
1408 }
1409
1410 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1411 {
1412 switch (type) {
1413 case ATH6KL_HIF_TYPE_SDIO:
1414 return "sdio";
1415 case ATH6KL_HIF_TYPE_USB:
1416 return "usb";
1417 }
1418
1419 return NULL;
1420 }
1421
1422 int ath6kl_init_hw_start(struct ath6kl *ar)
1423 {
1424 long timeleft;
1425 int ret, i;
1426
1427 ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1428
1429 ret = ath6kl_hif_power_on(ar);
1430 if (ret)
1431 return ret;
1432
1433 ret = ath6kl_configure_target(ar);
1434 if (ret)
1435 goto err_power_off;
1436
1437 ret = ath6kl_init_upload(ar);
1438 if (ret)
1439 goto err_power_off;
1440
1441 /* Do we need to finish the BMI phase */
1442 /* FIXME: return error from ath6kl_bmi_done() */
1443 if (ath6kl_bmi_done(ar)) {
1444 ret = -EIO;
1445 goto err_power_off;
1446 }
1447
1448 /*
1449 * The reason we have to wait for the target here is that the
1450 * driver layer has to init BMI in order to set the host block
1451 * size.
1452 */
1453 if (ath6kl_htc_wait_target(ar->htc_target)) {
1454 ret = -EIO;
1455 goto err_power_off;
1456 }
1457
1458 if (ath6kl_init_service_ep(ar)) {
1459 ret = -EIO;
1460 goto err_cleanup_scatter;
1461 }
1462
1463 /* setup credit distribution */
1464 ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1465
1466 /* start HTC */
1467 ret = ath6kl_htc_start(ar->htc_target);
1468 if (ret) {
1469 /* FIXME: call this */
1470 ath6kl_cookie_cleanup(ar);
1471 goto err_cleanup_scatter;
1472 }
1473
1474 /* Wait for Wmi event to be ready */
1475 timeleft = wait_event_interruptible_timeout(ar->event_wq,
1476 test_bit(WMI_READY,
1477 &ar->flag),
1478 WMI_TIMEOUT);
1479
1480 ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1481
1482
1483 if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1484 ath6kl_info("%s %s fw %s%s\n",
1485 ar->hw.name,
1486 ath6kl_init_get_hif_name(ar->hif_type),
1487 ar->wiphy->fw_version,
1488 test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1489 }
1490
1491 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1492 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1493 ATH6KL_ABI_VERSION, ar->version.abi_ver);
1494 ret = -EIO;
1495 goto err_htc_stop;
1496 }
1497
1498 if (!timeleft || signal_pending(current)) {
1499 ath6kl_err("wmi is not ready or wait was interrupted\n");
1500 ret = -EIO;
1501 goto err_htc_stop;
1502 }
1503
1504 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1505
1506 /* communicate the wmi protocol verision to the target */
1507 /* FIXME: return error */
1508 if ((ath6kl_set_host_app_area(ar)) != 0)
1509 ath6kl_err("unable to set the host app area\n");
1510
1511 for (i = 0; i < ar->vif_max; i++) {
1512 ret = ath6kl_target_config_wlan_params(ar, i);
1513 if (ret)
1514 goto err_htc_stop;
1515 }
1516
1517 ar->state = ATH6KL_STATE_ON;
1518
1519 return 0;
1520
1521 err_htc_stop:
1522 ath6kl_htc_stop(ar->htc_target);
1523 err_cleanup_scatter:
1524 ath6kl_hif_cleanup_scatter(ar);
1525 err_power_off:
1526 ath6kl_hif_power_off(ar);
1527
1528 return ret;
1529 }
1530
1531 int ath6kl_init_hw_stop(struct ath6kl *ar)
1532 {
1533 int ret;
1534
1535 ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1536
1537 ath6kl_htc_stop(ar->htc_target);
1538
1539 ath6kl_hif_stop(ar);
1540
1541 ath6kl_bmi_reset(ar);
1542
1543 ret = ath6kl_hif_power_off(ar);
1544 if (ret)
1545 ath6kl_warn("failed to power off hif: %d\n", ret);
1546
1547 ar->state = ATH6KL_STATE_OFF;
1548
1549 return 0;
1550 }
1551
1552 int ath6kl_core_init(struct ath6kl *ar)
1553 {
1554 struct ath6kl_bmi_target_info targ_info;
1555 struct net_device *ndev;
1556 int ret = 0, i;
1557
1558 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1559 if (!ar->ath6kl_wq)
1560 return -ENOMEM;
1561
1562 ret = ath6kl_bmi_init(ar);
1563 if (ret)
1564 goto err_wq;
1565
1566 /*
1567 * Turn on power to get hardware (target) version and leave power
1568 * on delibrately as we will boot the hardware anyway within few
1569 * seconds.
1570 */
1571 ret = ath6kl_hif_power_on(ar);
1572 if (ret)
1573 goto err_bmi_cleanup;
1574
1575 ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1576 if (ret)
1577 goto err_power_off;
1578
1579 ar->version.target_ver = le32_to_cpu(targ_info.version);
1580 ar->target_type = le32_to_cpu(targ_info.type);
1581 ar->wiphy->hw_version = le32_to_cpu(targ_info.version);
1582
1583 ret = ath6kl_init_hw_params(ar);
1584 if (ret)
1585 goto err_power_off;
1586
1587 ar->htc_target = ath6kl_htc_create(ar);
1588
1589 if (!ar->htc_target) {
1590 ret = -ENOMEM;
1591 goto err_power_off;
1592 }
1593
1594 ret = ath6kl_fetch_firmwares(ar);
1595 if (ret)
1596 goto err_htc_cleanup;
1597
1598 /* FIXME: we should free all firmwares in the error cases below */
1599
1600 /* Indicate that WMI is enabled (although not ready yet) */
1601 set_bit(WMI_ENABLED, &ar->flag);
1602 ar->wmi = ath6kl_wmi_init(ar);
1603 if (!ar->wmi) {
1604 ath6kl_err("failed to initialize wmi\n");
1605 ret = -EIO;
1606 goto err_htc_cleanup;
1607 }
1608
1609 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1610
1611 ret = ath6kl_register_ieee80211_hw(ar);
1612 if (ret)
1613 goto err_node_cleanup;
1614
1615 ret = ath6kl_debug_init(ar);
1616 if (ret) {
1617 wiphy_unregister(ar->wiphy);
1618 goto err_node_cleanup;
1619 }
1620
1621 for (i = 0; i < ar->vif_max; i++)
1622 ar->avail_idx_map |= BIT(i);
1623
1624 rtnl_lock();
1625
1626 /* Add an initial station interface */
1627 ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0,
1628 INFRA_NETWORK);
1629
1630 rtnl_unlock();
1631
1632 if (!ndev) {
1633 ath6kl_err("Failed to instantiate a network device\n");
1634 ret = -ENOMEM;
1635 wiphy_unregister(ar->wiphy);
1636 goto err_debug_init;
1637 }
1638
1639
1640 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1641 __func__, ndev->name, ndev, ar);
1642
1643 /* setup access class priority mappings */
1644 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */
1645 ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1646 ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1647 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1648
1649 /* give our connected endpoints some buffers */
1650 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1651 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1652
1653 /* allocate some buffers that handle larger AMSDU frames */
1654 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1655
1656 ath6kl_cookie_init(ar);
1657
1658 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1659 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1660
1661 if (suspend_cutpower)
1662 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER;
1663
1664 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
1665 WIPHY_FLAG_HAVE_AP_SME |
1666 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1667 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1668
1669 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities))
1670 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
1671
1672 ar->wiphy->probe_resp_offload =
1673 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1674 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1675 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
1676 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
1677
1678 set_bit(FIRST_BOOT, &ar->flag);
1679
1680 ret = ath6kl_init_hw_start(ar);
1681 if (ret) {
1682 ath6kl_err("Failed to start hardware: %d\n", ret);
1683 goto err_rxbuf_cleanup;
1684 }
1685
1686 /*
1687 * Set mac address which is received in ready event
1688 * FIXME: Move to ath6kl_interface_add()
1689 */
1690 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
1691
1692 return ret;
1693
1694 err_rxbuf_cleanup:
1695 ath6kl_htc_flush_rx_buf(ar->htc_target);
1696 ath6kl_cleanup_amsdu_rxbufs(ar);
1697 rtnl_lock();
1698 ath6kl_deinit_if_data(netdev_priv(ndev));
1699 rtnl_unlock();
1700 wiphy_unregister(ar->wiphy);
1701 err_debug_init:
1702 ath6kl_debug_cleanup(ar);
1703 err_node_cleanup:
1704 ath6kl_wmi_shutdown(ar->wmi);
1705 clear_bit(WMI_ENABLED, &ar->flag);
1706 ar->wmi = NULL;
1707 err_htc_cleanup:
1708 ath6kl_htc_cleanup(ar->htc_target);
1709 err_power_off:
1710 ath6kl_hif_power_off(ar);
1711 err_bmi_cleanup:
1712 ath6kl_bmi_cleanup(ar);
1713 err_wq:
1714 destroy_workqueue(ar->ath6kl_wq);
1715
1716 return ret;
1717 }
1718
1719 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1720 {
1721 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1722 bool discon_issued;
1723
1724 netif_stop_queue(vif->ndev);
1725
1726 clear_bit(WLAN_ENABLED, &vif->flags);
1727
1728 if (wmi_ready) {
1729 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1730 test_bit(CONNECT_PEND, &vif->flags);
1731 ath6kl_disconnect(vif);
1732 del_timer(&vif->disconnect_timer);
1733
1734 if (discon_issued)
1735 ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1736 (vif->nw_type & AP_NETWORK) ?
1737 bcast_mac : vif->bssid,
1738 0, NULL, 0);
1739 }
1740
1741 if (vif->scan_req) {
1742 cfg80211_scan_done(vif->scan_req, true);
1743 vif->scan_req = NULL;
1744 }
1745 }
1746
1747 void ath6kl_stop_txrx(struct ath6kl *ar)
1748 {
1749 struct ath6kl_vif *vif, *tmp_vif;
1750
1751 set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1752
1753 if (down_interruptible(&ar->sem)) {
1754 ath6kl_err("down_interruptible failed\n");
1755 return;
1756 }
1757
1758 spin_lock_bh(&ar->list_lock);
1759 list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1760 list_del(&vif->list);
1761 spin_unlock_bh(&ar->list_lock);
1762 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1763 rtnl_lock();
1764 ath6kl_deinit_if_data(vif);
1765 rtnl_unlock();
1766 spin_lock_bh(&ar->list_lock);
1767 }
1768 spin_unlock_bh(&ar->list_lock);
1769
1770 clear_bit(WMI_READY, &ar->flag);
1771
1772 /*
1773 * After wmi_shudown all WMI events will be dropped. We
1774 * need to cleanup the buffers allocated in AP mode and
1775 * give disconnect notification to stack, which usually
1776 * happens in the disconnect_event. Simulate the disconnect
1777 * event by calling the function directly. Sometimes
1778 * disconnect_event will be received when the debug logs
1779 * are collected.
1780 */
1781 ath6kl_wmi_shutdown(ar->wmi);
1782
1783 clear_bit(WMI_ENABLED, &ar->flag);
1784 if (ar->htc_target) {
1785 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1786 ath6kl_htc_stop(ar->htc_target);
1787 }
1788
1789 /*
1790 * Try to reset the device if we can. The driver may have been
1791 * configure NOT to reset the target during a debug session.
1792 */
1793 ath6kl_dbg(ATH6KL_DBG_TRC,
1794 "attempting to reset target on instance destroy\n");
1795 ath6kl_reset_device(ar, ar->target_type, true, true);
1796
1797 clear_bit(WLAN_ENABLED, &ar->flag);
1798 }