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[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / ath / ath6kl / init.c
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/export.h>
21 #include <linux/of.h>
22 #include <linux/mmc/sdio_func.h>
23
24 #include "core.h"
25 #include "cfg80211.h"
26 #include "target.h"
27 #include "debug.h"
28 #include "hif-ops.h"
29
30 static const struct ath6kl_hw hw_list[] = {
31 {
32 .id = AR6003_HW_2_0_VERSION,
33 .name = "ar6003 hw 2.0",
34 .dataset_patch_addr = 0x57e884,
35 .app_load_addr = 0x543180,
36 .board_ext_data_addr = 0x57e500,
37 .reserved_ram_size = 6912,
38 .refclk_hz = 26000000,
39 .uarttx_pin = 8,
40
41 /* hw2.0 needs override address hardcoded */
42 .app_start_override_addr = 0x944C00,
43
44 .fw = {
45 .dir = AR6003_HW_2_0_FW_DIR,
46 .otp = AR6003_HW_2_0_OTP_FILE,
47 .fw = AR6003_HW_2_0_FIRMWARE_FILE,
48 .tcmd = AR6003_HW_2_0_TCMD_FIRMWARE_FILE,
49 .patch = AR6003_HW_2_0_PATCH_FILE,
50 },
51
52 .fw_board = AR6003_HW_2_0_BOARD_DATA_FILE,
53 .fw_default_board = AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE,
54 },
55 {
56 .id = AR6003_HW_2_1_1_VERSION,
57 .name = "ar6003 hw 2.1.1",
58 .dataset_patch_addr = 0x57ff74,
59 .app_load_addr = 0x1234,
60 .board_ext_data_addr = 0x542330,
61 .reserved_ram_size = 512,
62 .refclk_hz = 26000000,
63 .uarttx_pin = 8,
64 .testscript_addr = 0x57ef74,
65
66 .fw = {
67 .dir = AR6003_HW_2_1_1_FW_DIR,
68 .otp = AR6003_HW_2_1_1_OTP_FILE,
69 .fw = AR6003_HW_2_1_1_FIRMWARE_FILE,
70 .tcmd = AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE,
71 .patch = AR6003_HW_2_1_1_PATCH_FILE,
72 .utf = AR6003_HW_2_1_1_UTF_FIRMWARE_FILE,
73 .testscript = AR6003_HW_2_1_1_TESTSCRIPT_FILE,
74 },
75
76 .fw_board = AR6003_HW_2_1_1_BOARD_DATA_FILE,
77 .fw_default_board = AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE,
78 },
79 {
80 .id = AR6004_HW_1_0_VERSION,
81 .name = "ar6004 hw 1.0",
82 .dataset_patch_addr = 0x57e884,
83 .app_load_addr = 0x1234,
84 .board_ext_data_addr = 0x437000,
85 .reserved_ram_size = 19456,
86 .board_addr = 0x433900,
87 .refclk_hz = 26000000,
88 .uarttx_pin = 11,
89
90 .fw = {
91 .dir = AR6004_HW_1_0_FW_DIR,
92 .fw = AR6004_HW_1_0_FIRMWARE_FILE,
93 },
94
95 .fw_board = AR6004_HW_1_0_BOARD_DATA_FILE,
96 .fw_default_board = AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE,
97 },
98 {
99 .id = AR6004_HW_1_1_VERSION,
100 .name = "ar6004 hw 1.1",
101 .dataset_patch_addr = 0x57e884,
102 .app_load_addr = 0x1234,
103 .board_ext_data_addr = 0x437000,
104 .reserved_ram_size = 11264,
105 .board_addr = 0x43d400,
106 .refclk_hz = 40000000,
107 .uarttx_pin = 11,
108
109 .fw = {
110 .dir = AR6004_HW_1_1_FW_DIR,
111 .fw = AR6004_HW_1_1_FIRMWARE_FILE,
112 },
113
114 .fw_board = AR6004_HW_1_1_BOARD_DATA_FILE,
115 .fw_default_board = AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE,
116 },
117 };
118
119 /*
120 * Include definitions here that can be used to tune the WLAN module
121 * behavior. Different customers can tune the behavior as per their needs,
122 * here.
123 */
124
125 /*
126 * This configuration item enable/disable keepalive support.
127 * Keepalive support: In the absence of any data traffic to AP, null
128 * frames will be sent to the AP at periodic interval, to keep the association
129 * active. This configuration item defines the periodic interval.
130 * Use value of zero to disable keepalive support
131 * Default: 60 seconds
132 */
133 #define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
134
135 /*
136 * This configuration item sets the value of disconnect timeout
137 * Firmware delays sending the disconnec event to the host for this
138 * timeout after is gets disconnected from the current AP.
139 * If the firmware successly roams within the disconnect timeout
140 * it sends a new connect event
141 */
142 #define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
143
144
145 #define ATH6KL_DATA_OFFSET 64
146 struct sk_buff *ath6kl_buf_alloc(int size)
147 {
148 struct sk_buff *skb;
149 u16 reserved;
150
151 /* Add chacheline space at front and back of buffer */
152 reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
153 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
154 skb = dev_alloc_skb(size + reserved);
155
156 if (skb)
157 skb_reserve(skb, reserved - L1_CACHE_BYTES);
158 return skb;
159 }
160
161 void ath6kl_init_profile_info(struct ath6kl_vif *vif)
162 {
163 vif->ssid_len = 0;
164 memset(vif->ssid, 0, sizeof(vif->ssid));
165
166 vif->dot11_auth_mode = OPEN_AUTH;
167 vif->auth_mode = NONE_AUTH;
168 vif->prwise_crypto = NONE_CRYPT;
169 vif->prwise_crypto_len = 0;
170 vif->grp_crypto = NONE_CRYPT;
171 vif->grp_crypto_len = 0;
172 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
173 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
174 memset(vif->bssid, 0, sizeof(vif->bssid));
175 vif->bss_ch = 0;
176 }
177
178 static int ath6kl_set_host_app_area(struct ath6kl *ar)
179 {
180 u32 address, data;
181 struct host_app_area host_app_area;
182
183 /* Fetch the address of the host_app_area_s
184 * instance in the host interest area */
185 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
186 address = TARG_VTOP(ar->target_type, address);
187
188 if (ath6kl_diag_read32(ar, address, &data))
189 return -EIO;
190
191 address = TARG_VTOP(ar->target_type, data);
192 host_app_area.wmi_protocol_ver = cpu_to_le32(WMI_PROTOCOL_VERSION);
193 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
194 sizeof(struct host_app_area)))
195 return -EIO;
196
197 return 0;
198 }
199
200 static inline void set_ac2_ep_map(struct ath6kl *ar,
201 u8 ac,
202 enum htc_endpoint_id ep)
203 {
204 ar->ac2ep_map[ac] = ep;
205 ar->ep2ac_map[ep] = ac;
206 }
207
208 /* connect to a service */
209 static int ath6kl_connectservice(struct ath6kl *ar,
210 struct htc_service_connect_req *con_req,
211 char *desc)
212 {
213 int status;
214 struct htc_service_connect_resp response;
215
216 memset(&response, 0, sizeof(response));
217
218 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
219 if (status) {
220 ath6kl_err("failed to connect to %s service status:%d\n",
221 desc, status);
222 return status;
223 }
224
225 switch (con_req->svc_id) {
226 case WMI_CONTROL_SVC:
227 if (test_bit(WMI_ENABLED, &ar->flag))
228 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
229 ar->ctrl_ep = response.endpoint;
230 break;
231 case WMI_DATA_BE_SVC:
232 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
233 break;
234 case WMI_DATA_BK_SVC:
235 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
236 break;
237 case WMI_DATA_VI_SVC:
238 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
239 break;
240 case WMI_DATA_VO_SVC:
241 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
242 break;
243 default:
244 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
245 return -EINVAL;
246 }
247
248 return 0;
249 }
250
251 static int ath6kl_init_service_ep(struct ath6kl *ar)
252 {
253 struct htc_service_connect_req connect;
254
255 memset(&connect, 0, sizeof(connect));
256
257 /* these fields are the same for all service endpoints */
258 connect.ep_cb.rx = ath6kl_rx;
259 connect.ep_cb.rx_refill = ath6kl_rx_refill;
260 connect.ep_cb.tx_full = ath6kl_tx_queue_full;
261
262 /*
263 * Set the max queue depth so that our ath6kl_tx_queue_full handler
264 * gets called.
265 */
266 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
267 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
268 if (!connect.ep_cb.rx_refill_thresh)
269 connect.ep_cb.rx_refill_thresh++;
270
271 /* connect to control service */
272 connect.svc_id = WMI_CONTROL_SVC;
273 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
274 return -EIO;
275
276 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
277
278 /*
279 * Limit the HTC message size on the send path, although e can
280 * receive A-MSDU frames of 4K, we will only send ethernet-sized
281 * (802.3) frames on the send path.
282 */
283 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
284
285 /*
286 * To reduce the amount of committed memory for larger A_MSDU
287 * frames, use the recv-alloc threshold mechanism for larger
288 * packets.
289 */
290 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
291 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
292
293 /*
294 * For the remaining data services set the connection flag to
295 * reduce dribbling, if configured to do so.
296 */
297 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
298 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
299 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
300
301 connect.svc_id = WMI_DATA_BE_SVC;
302
303 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
304 return -EIO;
305
306 /* connect to back-ground map this to WMI LOW_PRI */
307 connect.svc_id = WMI_DATA_BK_SVC;
308 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
309 return -EIO;
310
311 /* connect to Video service, map this to to HI PRI */
312 connect.svc_id = WMI_DATA_VI_SVC;
313 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
314 return -EIO;
315
316 /*
317 * Connect to VO service, this is currently not mapped to a WMI
318 * priority stream due to historical reasons. WMI originally
319 * defined 3 priorities over 3 mailboxes We can change this when
320 * WMI is reworked so that priorities are not dependent on
321 * mailboxes.
322 */
323 connect.svc_id = WMI_DATA_VO_SVC;
324 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
325 return -EIO;
326
327 return 0;
328 }
329
330 void ath6kl_init_control_info(struct ath6kl_vif *vif)
331 {
332 ath6kl_init_profile_info(vif);
333 vif->def_txkey_index = 0;
334 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
335 vif->ch_hint = 0;
336 }
337
338 /*
339 * Set HTC/Mbox operational parameters, this can only be called when the
340 * target is in the BMI phase.
341 */
342 static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
343 u8 htc_ctrl_buf)
344 {
345 int status;
346 u32 blk_size;
347
348 blk_size = ar->mbox_info.block_size;
349
350 if (htc_ctrl_buf)
351 blk_size |= ((u32)htc_ctrl_buf) << 16;
352
353 /* set the host interest area for the block size */
354 status = ath6kl_bmi_write(ar,
355 ath6kl_get_hi_item_addr(ar,
356 HI_ITEM(hi_mbox_io_block_sz)),
357 (u8 *)&blk_size,
358 4);
359 if (status) {
360 ath6kl_err("bmi_write_memory for IO block size failed\n");
361 goto out;
362 }
363
364 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
365 blk_size,
366 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
367
368 if (mbox_isr_yield_val) {
369 /* set the host interest area for the mbox ISR yield limit */
370 status = ath6kl_bmi_write(ar,
371 ath6kl_get_hi_item_addr(ar,
372 HI_ITEM(hi_mbox_isr_yield_limit)),
373 (u8 *)&mbox_isr_yield_val,
374 4);
375 if (status) {
376 ath6kl_err("bmi_write_memory for yield limit failed\n");
377 goto out;
378 }
379 }
380
381 out:
382 return status;
383 }
384
385 static int ath6kl_target_config_wlan_params(struct ath6kl *ar, int idx)
386 {
387 int status = 0;
388 int ret;
389
390 /*
391 * Configure the device for rx dot11 header rules. "0,0" are the
392 * default values. Required if checksum offload is needed. Set
393 * RxMetaVersion to 2.
394 */
395 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, idx,
396 ar->rx_meta_ver, 0, 0)) {
397 ath6kl_err("unable to set the rx frame format\n");
398 status = -EIO;
399 }
400
401 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
402 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, idx, 0, 1, 0, 0, 1,
403 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
404 ath6kl_err("unable to set power save fail event policy\n");
405 status = -EIO;
406 }
407
408 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
409 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, idx, 0,
410 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
411 ath6kl_err("unable to set barker preamble policy\n");
412 status = -EIO;
413 }
414
415 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi, idx,
416 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
417 ath6kl_err("unable to set keep alive interval\n");
418 status = -EIO;
419 }
420
421 if (ath6kl_wmi_disctimeout_cmd(ar->wmi, idx,
422 WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
423 ath6kl_err("unable to set disconnect timeout\n");
424 status = -EIO;
425 }
426
427 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
428 if (ath6kl_wmi_set_wmm_txop(ar->wmi, idx, WMI_TXOP_DISABLED)) {
429 ath6kl_err("unable to set txop bursting\n");
430 status = -EIO;
431 }
432
433 if (ar->p2p && (ar->vif_max == 1 || idx)) {
434 ret = ath6kl_wmi_info_req_cmd(ar->wmi, idx,
435 P2P_FLAG_CAPABILITIES_REQ |
436 P2P_FLAG_MACADDR_REQ |
437 P2P_FLAG_HMODEL_REQ);
438 if (ret) {
439 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
440 "capabilities (%d) - assuming P2P not "
441 "supported\n", ret);
442 ar->p2p = false;
443 }
444 }
445
446 if (ar->p2p && (ar->vif_max == 1 || idx)) {
447 /* Enable Probe Request reporting for P2P */
448 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, idx, true);
449 if (ret) {
450 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
451 "Request reporting (%d)\n", ret);
452 }
453 }
454
455 return status;
456 }
457
458 int ath6kl_configure_target(struct ath6kl *ar)
459 {
460 u32 param, ram_reserved_size;
461 u8 fw_iftype, fw_mode = 0, fw_submode = 0;
462 int i, status;
463
464 param = !!(ar->conf_flags & ATH6KL_CONF_UART_DEBUG);
465 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
466 HI_ITEM(hi_serial_enable)), (u8 *)&param, 4)) {
467 ath6kl_err("bmi_write_memory for uart debug failed\n");
468 return -EIO;
469 }
470
471 /*
472 * Note: Even though the firmware interface type is
473 * chosen as BSS_STA for all three interfaces, can
474 * be configured to IBSS/AP as long as the fw submode
475 * remains normal mode (0 - AP, STA and IBSS). But
476 * due to an target assert in firmware only one interface is
477 * configured for now.
478 */
479 fw_iftype = HI_OPTION_FW_MODE_BSS_STA;
480
481 for (i = 0; i < ar->vif_max; i++)
482 fw_mode |= fw_iftype << (i * HI_OPTION_FW_MODE_BITS);
483
484 /*
485 * By default, submodes :
486 * vif[0] - AP/STA/IBSS
487 * vif[1] - "P2P dev"/"P2P GO"/"P2P Client"
488 * vif[2] - "P2P dev"/"P2P GO"/"P2P Client"
489 */
490
491 for (i = 0; i < ar->max_norm_iface; i++)
492 fw_submode |= HI_OPTION_FW_SUBMODE_NONE <<
493 (i * HI_OPTION_FW_SUBMODE_BITS);
494
495 for (i = ar->max_norm_iface; i < ar->vif_max; i++)
496 fw_submode |= HI_OPTION_FW_SUBMODE_P2PDEV <<
497 (i * HI_OPTION_FW_SUBMODE_BITS);
498
499 if (ar->p2p && ar->vif_max == 1)
500 fw_submode = HI_OPTION_FW_SUBMODE_P2PDEV;
501
502 param = HTC_PROTOCOL_VERSION;
503 if (ath6kl_bmi_write(ar,
504 ath6kl_get_hi_item_addr(ar,
505 HI_ITEM(hi_app_host_interest)),
506 (u8 *)&param, 4) != 0) {
507 ath6kl_err("bmi_write_memory for htc version failed\n");
508 return -EIO;
509 }
510
511 /* set the firmware mode to STA/IBSS/AP */
512 param = 0;
513
514 if (ath6kl_bmi_read(ar,
515 ath6kl_get_hi_item_addr(ar,
516 HI_ITEM(hi_option_flag)),
517 (u8 *)&param, 4) != 0) {
518 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
519 return -EIO;
520 }
521
522 param |= (ar->vif_max << HI_OPTION_NUM_DEV_SHIFT);
523 param |= fw_mode << HI_OPTION_FW_MODE_SHIFT;
524 param |= fw_submode << HI_OPTION_FW_SUBMODE_SHIFT;
525
526 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
527 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
528
529 if (ath6kl_bmi_write(ar,
530 ath6kl_get_hi_item_addr(ar,
531 HI_ITEM(hi_option_flag)),
532 (u8 *)&param,
533 4) != 0) {
534 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
535 return -EIO;
536 }
537
538 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
539
540 /*
541 * Hardcode the address use for the extended board data
542 * Ideally this should be pre-allocate by the OS at boot time
543 * But since it is a new feature and board data is loaded
544 * at init time, we have to workaround this from host.
545 * It is difficult to patch the firmware boot code,
546 * but possible in theory.
547 */
548
549 param = ar->hw.board_ext_data_addr;
550 ram_reserved_size = ar->hw.reserved_ram_size;
551
552 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
553 HI_ITEM(hi_board_ext_data)),
554 (u8 *)&param, 4) != 0) {
555 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
556 return -EIO;
557 }
558
559 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
560 HI_ITEM(hi_end_ram_reserve_sz)),
561 (u8 *)&ram_reserved_size, 4) != 0) {
562 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
563 return -EIO;
564 }
565
566 /* set the block size for the target */
567 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
568 /* use default number of control buffers */
569 return -EIO;
570
571 /* Configure GPIO AR600x UART */
572 param = ar->hw.uarttx_pin;
573 status = ath6kl_bmi_write(ar,
574 ath6kl_get_hi_item_addr(ar,
575 HI_ITEM(hi_dbg_uart_txpin)),
576 (u8 *)&param, 4);
577 if (status)
578 return status;
579
580 /* Configure target refclk_hz */
581 param = ar->hw.refclk_hz;
582 status = ath6kl_bmi_write(ar,
583 ath6kl_get_hi_item_addr(ar,
584 HI_ITEM(hi_refclk_hz)),
585 (u8 *)&param, 4);
586 if (status)
587 return status;
588
589 return 0;
590 }
591
592 /* firmware upload */
593 static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
594 u8 **fw, size_t *fw_len)
595 {
596 const struct firmware *fw_entry;
597 int ret;
598
599 ret = request_firmware(&fw_entry, filename, ar->dev);
600 if (ret)
601 return ret;
602
603 *fw_len = fw_entry->size;
604 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
605
606 if (*fw == NULL)
607 ret = -ENOMEM;
608
609 release_firmware(fw_entry);
610
611 return ret;
612 }
613
614 #ifdef CONFIG_OF
615 /*
616 * Check the device tree for a board-id and use it to construct
617 * the pathname to the firmware file. Used (for now) to find a
618 * fallback to the "bdata.bin" file--typically a symlink to the
619 * appropriate board-specific file.
620 */
621 static bool check_device_tree(struct ath6kl *ar)
622 {
623 static const char *board_id_prop = "atheros,board-id";
624 struct device_node *node;
625 char board_filename[64];
626 const char *board_id;
627 int ret;
628
629 for_each_compatible_node(node, NULL, "atheros,ath6kl") {
630 board_id = of_get_property(node, board_id_prop, NULL);
631 if (board_id == NULL) {
632 ath6kl_warn("No \"%s\" property on %s node.\n",
633 board_id_prop, node->name);
634 continue;
635 }
636 snprintf(board_filename, sizeof(board_filename),
637 "%s/bdata.%s.bin", ar->hw.fw.dir, board_id);
638
639 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
640 &ar->fw_board_len);
641 if (ret) {
642 ath6kl_err("Failed to get DT board file %s: %d\n",
643 board_filename, ret);
644 continue;
645 }
646 return true;
647 }
648 return false;
649 }
650 #else
651 static bool check_device_tree(struct ath6kl *ar)
652 {
653 return false;
654 }
655 #endif /* CONFIG_OF */
656
657 static int ath6kl_fetch_board_file(struct ath6kl *ar)
658 {
659 const char *filename;
660 int ret;
661
662 if (ar->fw_board != NULL)
663 return 0;
664
665 if (WARN_ON(ar->hw.fw_board == NULL))
666 return -EINVAL;
667
668 filename = ar->hw.fw_board;
669
670 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
671 &ar->fw_board_len);
672 if (ret == 0) {
673 /* managed to get proper board file */
674 return 0;
675 }
676
677 if (check_device_tree(ar)) {
678 /* got board file from device tree */
679 return 0;
680 }
681
682 /* there was no proper board file, try to use default instead */
683 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
684 filename, ret);
685
686 filename = ar->hw.fw_default_board;
687
688 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
689 &ar->fw_board_len);
690 if (ret) {
691 ath6kl_err("Failed to get default board file %s: %d\n",
692 filename, ret);
693 return ret;
694 }
695
696 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
697 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
698
699 return 0;
700 }
701
702 static int ath6kl_fetch_otp_file(struct ath6kl *ar)
703 {
704 char filename[100];
705 int ret;
706
707 if (ar->fw_otp != NULL)
708 return 0;
709
710 if (ar->hw.fw.otp == NULL) {
711 ath6kl_dbg(ATH6KL_DBG_BOOT,
712 "no OTP file configured for this hw\n");
713 return 0;
714 }
715
716 snprintf(filename, sizeof(filename), "%s/%s",
717 ar->hw.fw.dir, ar->hw.fw.otp);
718
719 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
720 &ar->fw_otp_len);
721 if (ret) {
722 ath6kl_err("Failed to get OTP file %s: %d\n",
723 filename, ret);
724 return ret;
725 }
726
727 return 0;
728 }
729
730 static int ath6kl_fetch_testmode_file(struct ath6kl *ar)
731 {
732 char filename[100];
733 int ret;
734
735 if (ar->testmode == 0)
736 return 0;
737
738 ath6kl_dbg(ATH6KL_DBG_BOOT, "testmode %d\n", ar->testmode);
739
740 if (ar->testmode == 2) {
741 if (ar->hw.fw.utf == NULL) {
742 ath6kl_warn("testmode 2 not supported\n");
743 return -EOPNOTSUPP;
744 }
745
746 snprintf(filename, sizeof(filename), "%s/%s",
747 ar->hw.fw.dir, ar->hw.fw.utf);
748 } else {
749 if (ar->hw.fw.tcmd == NULL) {
750 ath6kl_warn("testmode 1 not supported\n");
751 return -EOPNOTSUPP;
752 }
753
754 snprintf(filename, sizeof(filename), "%s/%s",
755 ar->hw.fw.dir, ar->hw.fw.tcmd);
756 }
757
758 set_bit(TESTMODE, &ar->flag);
759
760 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
761 if (ret) {
762 ath6kl_err("Failed to get testmode %d firmware file %s: %d\n",
763 ar->testmode, filename, ret);
764 return ret;
765 }
766
767 return 0;
768 }
769
770 static int ath6kl_fetch_fw_file(struct ath6kl *ar)
771 {
772 char filename[100];
773 int ret;
774
775 if (ar->fw != NULL)
776 return 0;
777
778 /* FIXME: remove WARN_ON() as we won't support FW API 1 for long */
779 if (WARN_ON(ar->hw.fw.fw == NULL))
780 return -EINVAL;
781
782 snprintf(filename, sizeof(filename), "%s/%s",
783 ar->hw.fw.dir, ar->hw.fw.fw);
784
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 char filename[100];
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 snprintf(filename, sizeof(filename), "%s/%s",
807 ar->hw.fw.dir, ar->hw.fw.patch);
808
809 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
810 &ar->fw_patch_len);
811 if (ret) {
812 ath6kl_err("Failed to get patch file %s: %d\n",
813 filename, ret);
814 return ret;
815 }
816
817 return 0;
818 }
819
820 static int ath6kl_fetch_testscript_file(struct ath6kl *ar)
821 {
822 char filename[100];
823 int ret;
824
825 if (ar->testmode != 2)
826 return 0;
827
828 if (ar->fw_testscript != NULL)
829 return 0;
830
831 if (ar->hw.fw.testscript == NULL)
832 return 0;
833
834 snprintf(filename, sizeof(filename), "%s/%s",
835 ar->hw.fw.dir, ar->hw.fw.testscript);
836
837 ret = ath6kl_get_fw(ar, filename, &ar->fw_testscript,
838 &ar->fw_testscript_len);
839 if (ret) {
840 ath6kl_err("Failed to get testscript file %s: %d\n",
841 filename, ret);
842 return ret;
843 }
844
845 return 0;
846 }
847
848 static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
849 {
850 int ret;
851
852 ret = ath6kl_fetch_otp_file(ar);
853 if (ret)
854 return ret;
855
856 ret = ath6kl_fetch_fw_file(ar);
857 if (ret)
858 return ret;
859
860 ret = ath6kl_fetch_patch_file(ar);
861 if (ret)
862 return ret;
863
864 ret = ath6kl_fetch_testscript_file(ar);
865 if (ret)
866 return ret;
867
868 return 0;
869 }
870
871 static int ath6kl_fetch_fw_apin(struct ath6kl *ar, const char *name)
872 {
873 size_t magic_len, len, ie_len;
874 const struct firmware *fw;
875 struct ath6kl_fw_ie *hdr;
876 char filename[100];
877 const u8 *data;
878 int ret, ie_id, i, index, bit;
879 __le32 *val;
880
881 snprintf(filename, sizeof(filename), "%s/%s", ar->hw.fw.dir, name);
882
883 ret = request_firmware(&fw, filename, ar->dev);
884 if (ret)
885 return ret;
886
887 data = fw->data;
888 len = fw->size;
889
890 /* magic also includes the null byte, check that as well */
891 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
892
893 if (len < magic_len) {
894 ret = -EINVAL;
895 goto out;
896 }
897
898 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
899 ret = -EINVAL;
900 goto out;
901 }
902
903 len -= magic_len;
904 data += magic_len;
905
906 /* loop elements */
907 while (len > sizeof(struct ath6kl_fw_ie)) {
908 /* hdr is unaligned! */
909 hdr = (struct ath6kl_fw_ie *) data;
910
911 ie_id = le32_to_cpup(&hdr->id);
912 ie_len = le32_to_cpup(&hdr->len);
913
914 len -= sizeof(*hdr);
915 data += sizeof(*hdr);
916
917 if (len < ie_len) {
918 ret = -EINVAL;
919 goto out;
920 }
921
922 switch (ie_id) {
923 case ATH6KL_FW_IE_OTP_IMAGE:
924 ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
925 ie_len);
926
927 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
928
929 if (ar->fw_otp == NULL) {
930 ret = -ENOMEM;
931 goto out;
932 }
933
934 ar->fw_otp_len = ie_len;
935 break;
936 case ATH6KL_FW_IE_FW_IMAGE:
937 ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
938 ie_len);
939
940 /* in testmode we already might have a fw file */
941 if (ar->fw != NULL)
942 break;
943
944 ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
945
946 if (ar->fw == NULL) {
947 ret = -ENOMEM;
948 goto out;
949 }
950
951 ar->fw_len = ie_len;
952 break;
953 case ATH6KL_FW_IE_PATCH_IMAGE:
954 ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
955 ie_len);
956
957 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
958
959 if (ar->fw_patch == NULL) {
960 ret = -ENOMEM;
961 goto out;
962 }
963
964 ar->fw_patch_len = ie_len;
965 break;
966 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
967 val = (__le32 *) data;
968 ar->hw.reserved_ram_size = le32_to_cpup(val);
969
970 ath6kl_dbg(ATH6KL_DBG_BOOT,
971 "found reserved ram size ie 0x%d\n",
972 ar->hw.reserved_ram_size);
973 break;
974 case ATH6KL_FW_IE_CAPABILITIES:
975 if (ie_len < DIV_ROUND_UP(ATH6KL_FW_CAPABILITY_MAX, 8))
976 break;
977
978 ath6kl_dbg(ATH6KL_DBG_BOOT,
979 "found firmware capabilities ie (%zd B)\n",
980 ie_len);
981
982 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
983 index = i / 8;
984 bit = i % 8;
985
986 if (data[index] & (1 << bit))
987 __set_bit(i, ar->fw_capabilities);
988 }
989
990 ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
991 ar->fw_capabilities,
992 sizeof(ar->fw_capabilities));
993 break;
994 case ATH6KL_FW_IE_PATCH_ADDR:
995 if (ie_len != sizeof(*val))
996 break;
997
998 val = (__le32 *) data;
999 ar->hw.dataset_patch_addr = le32_to_cpup(val);
1000
1001 ath6kl_dbg(ATH6KL_DBG_BOOT,
1002 "found patch address ie 0x%x\n",
1003 ar->hw.dataset_patch_addr);
1004 break;
1005 case ATH6KL_FW_IE_BOARD_ADDR:
1006 if (ie_len != sizeof(*val))
1007 break;
1008
1009 val = (__le32 *) data;
1010 ar->hw.board_addr = le32_to_cpup(val);
1011
1012 ath6kl_dbg(ATH6KL_DBG_BOOT,
1013 "found board address ie 0x%x\n",
1014 ar->hw.board_addr);
1015 break;
1016 case ATH6KL_FW_IE_VIF_MAX:
1017 if (ie_len != sizeof(*val))
1018 break;
1019
1020 val = (__le32 *) data;
1021 ar->vif_max = min_t(unsigned int, le32_to_cpup(val),
1022 ATH6KL_VIF_MAX);
1023
1024 if (ar->vif_max > 1 && !ar->p2p)
1025 ar->max_norm_iface = 2;
1026
1027 ath6kl_dbg(ATH6KL_DBG_BOOT,
1028 "found vif max ie %d\n", ar->vif_max);
1029 break;
1030 default:
1031 ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
1032 le32_to_cpup(&hdr->id));
1033 break;
1034 }
1035
1036 len -= ie_len;
1037 data += ie_len;
1038 };
1039
1040 ret = 0;
1041 out:
1042 release_firmware(fw);
1043
1044 return ret;
1045 }
1046
1047 int ath6kl_init_fetch_firmwares(struct ath6kl *ar)
1048 {
1049 int ret;
1050
1051 ret = ath6kl_fetch_board_file(ar);
1052 if (ret)
1053 return ret;
1054
1055 ret = ath6kl_fetch_testmode_file(ar);
1056 if (ret)
1057 return ret;
1058
1059 ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API3_FILE);
1060 if (ret == 0) {
1061 ar->fw_api = 3;
1062 goto out;
1063 }
1064
1065 ret = ath6kl_fetch_fw_apin(ar, ATH6KL_FW_API2_FILE);
1066 if (ret == 0) {
1067 ar->fw_api = 2;
1068 goto out;
1069 }
1070
1071 ret = ath6kl_fetch_fw_api1(ar);
1072 if (ret)
1073 return ret;
1074
1075 ar->fw_api = 1;
1076
1077 out:
1078 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api %d\n", ar->fw_api);
1079
1080 return 0;
1081 }
1082
1083 static int ath6kl_upload_board_file(struct ath6kl *ar)
1084 {
1085 u32 board_address, board_ext_address, param;
1086 u32 board_data_size, board_ext_data_size;
1087 int ret;
1088
1089 if (WARN_ON(ar->fw_board == NULL))
1090 return -ENOENT;
1091
1092 /*
1093 * Determine where in Target RAM to write Board Data.
1094 * For AR6004, host determine Target RAM address for
1095 * writing board data.
1096 */
1097 if (ar->hw.board_addr != 0) {
1098 board_address = ar->hw.board_addr;
1099 ath6kl_bmi_write(ar,
1100 ath6kl_get_hi_item_addr(ar,
1101 HI_ITEM(hi_board_data)),
1102 (u8 *) &board_address, 4);
1103 } else {
1104 ath6kl_bmi_read(ar,
1105 ath6kl_get_hi_item_addr(ar,
1106 HI_ITEM(hi_board_data)),
1107 (u8 *) &board_address, 4);
1108 }
1109
1110 /* determine where in target ram to write extended board data */
1111 ath6kl_bmi_read(ar,
1112 ath6kl_get_hi_item_addr(ar,
1113 HI_ITEM(hi_board_ext_data)),
1114 (u8 *) &board_ext_address, 4);
1115
1116 if (ar->target_type == TARGET_TYPE_AR6003 &&
1117 board_ext_address == 0) {
1118 ath6kl_err("Failed to get board file target address.\n");
1119 return -EINVAL;
1120 }
1121
1122 switch (ar->target_type) {
1123 case TARGET_TYPE_AR6003:
1124 board_data_size = AR6003_BOARD_DATA_SZ;
1125 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1126 break;
1127 case TARGET_TYPE_AR6004:
1128 board_data_size = AR6004_BOARD_DATA_SZ;
1129 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1130 break;
1131 default:
1132 WARN_ON(1);
1133 return -EINVAL;
1134 break;
1135 }
1136
1137 if (board_ext_address &&
1138 ar->fw_board_len == (board_data_size + board_ext_data_size)) {
1139
1140 /* write extended board data */
1141 ath6kl_dbg(ATH6KL_DBG_BOOT,
1142 "writing extended board data to 0x%x (%d B)\n",
1143 board_ext_address, board_ext_data_size);
1144
1145 ret = ath6kl_bmi_write(ar, board_ext_address,
1146 ar->fw_board + board_data_size,
1147 board_ext_data_size);
1148 if (ret) {
1149 ath6kl_err("Failed to write extended board data: %d\n",
1150 ret);
1151 return ret;
1152 }
1153
1154 /* record that extended board data is initialized */
1155 param = (board_ext_data_size << 16) | 1;
1156
1157 ath6kl_bmi_write(ar,
1158 ath6kl_get_hi_item_addr(ar,
1159 HI_ITEM(hi_board_ext_data_config)),
1160 (unsigned char *) &param, 4);
1161 }
1162
1163 if (ar->fw_board_len < board_data_size) {
1164 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1165 ret = -EINVAL;
1166 return ret;
1167 }
1168
1169 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1170 board_address, board_data_size);
1171
1172 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1173 board_data_size);
1174
1175 if (ret) {
1176 ath6kl_err("Board file bmi write failed: %d\n", ret);
1177 return ret;
1178 }
1179
1180 /* record the fact that Board Data IS initialized */
1181 param = 1;
1182 ath6kl_bmi_write(ar,
1183 ath6kl_get_hi_item_addr(ar,
1184 HI_ITEM(hi_board_data_initialized)),
1185 (u8 *)&param, 4);
1186
1187 return ret;
1188 }
1189
1190 static int ath6kl_upload_otp(struct ath6kl *ar)
1191 {
1192 u32 address, param;
1193 bool from_hw = false;
1194 int ret;
1195
1196 if (ar->fw_otp == NULL)
1197 return 0;
1198
1199 address = ar->hw.app_load_addr;
1200
1201 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1202 ar->fw_otp_len);
1203
1204 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1205 ar->fw_otp_len);
1206 if (ret) {
1207 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1208 return ret;
1209 }
1210
1211 /* read firmware start address */
1212 ret = ath6kl_bmi_read(ar,
1213 ath6kl_get_hi_item_addr(ar,
1214 HI_ITEM(hi_app_start)),
1215 (u8 *) &address, sizeof(address));
1216
1217 if (ret) {
1218 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1219 return ret;
1220 }
1221
1222 if (ar->hw.app_start_override_addr == 0) {
1223 ar->hw.app_start_override_addr = address;
1224 from_hw = true;
1225 }
1226
1227 ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr%s 0x%x\n",
1228 from_hw ? " (from hw)" : "",
1229 ar->hw.app_start_override_addr);
1230
1231 /* execute the OTP code */
1232 ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n",
1233 ar->hw.app_start_override_addr);
1234 param = 0;
1235 ath6kl_bmi_execute(ar, ar->hw.app_start_override_addr, &param);
1236
1237 return ret;
1238 }
1239
1240 static int ath6kl_upload_firmware(struct ath6kl *ar)
1241 {
1242 u32 address;
1243 int ret;
1244
1245 if (WARN_ON(ar->fw == NULL))
1246 return 0;
1247
1248 address = ar->hw.app_load_addr;
1249
1250 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1251 address, ar->fw_len);
1252
1253 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1254
1255 if (ret) {
1256 ath6kl_err("Failed to write firmware: %d\n", ret);
1257 return ret;
1258 }
1259
1260 /*
1261 * Set starting address for firmware
1262 * Don't need to setup app_start override addr on AR6004
1263 */
1264 if (ar->target_type != TARGET_TYPE_AR6004) {
1265 address = ar->hw.app_start_override_addr;
1266 ath6kl_bmi_set_app_start(ar, address);
1267 }
1268 return ret;
1269 }
1270
1271 static int ath6kl_upload_patch(struct ath6kl *ar)
1272 {
1273 u32 address, param;
1274 int ret;
1275
1276 if (ar->fw_patch == NULL)
1277 return 0;
1278
1279 address = ar->hw.dataset_patch_addr;
1280
1281 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1282 address, ar->fw_patch_len);
1283
1284 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1285 if (ret) {
1286 ath6kl_err("Failed to write patch file: %d\n", ret);
1287 return ret;
1288 }
1289
1290 param = address;
1291 ath6kl_bmi_write(ar,
1292 ath6kl_get_hi_item_addr(ar,
1293 HI_ITEM(hi_dset_list_head)),
1294 (unsigned char *) &param, 4);
1295
1296 return 0;
1297 }
1298
1299 static int ath6kl_upload_testscript(struct ath6kl *ar)
1300 {
1301 u32 address, param;
1302 int ret;
1303
1304 if (ar->testmode != 2)
1305 return 0;
1306
1307 if (ar->fw_testscript == NULL)
1308 return 0;
1309
1310 address = ar->hw.testscript_addr;
1311
1312 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing testscript to 0x%x (%zd B)\n",
1313 address, ar->fw_testscript_len);
1314
1315 ret = ath6kl_bmi_write(ar, address, ar->fw_testscript,
1316 ar->fw_testscript_len);
1317 if (ret) {
1318 ath6kl_err("Failed to write testscript file: %d\n", ret);
1319 return ret;
1320 }
1321
1322 param = address;
1323 ath6kl_bmi_write(ar,
1324 ath6kl_get_hi_item_addr(ar,
1325 HI_ITEM(hi_ota_testscript)),
1326 (unsigned char *) &param, 4);
1327
1328 param = 4096;
1329 ath6kl_bmi_write(ar,
1330 ath6kl_get_hi_item_addr(ar,
1331 HI_ITEM(hi_end_ram_reserve_sz)),
1332 (unsigned char *) &param, 4);
1333
1334 param = 1;
1335 ath6kl_bmi_write(ar,
1336 ath6kl_get_hi_item_addr(ar,
1337 HI_ITEM(hi_test_apps_related)),
1338 (unsigned char *) &param, 4);
1339
1340 return 0;
1341 }
1342
1343 static int ath6kl_init_upload(struct ath6kl *ar)
1344 {
1345 u32 param, options, sleep, address;
1346 int status = 0;
1347
1348 if (ar->target_type != TARGET_TYPE_AR6003 &&
1349 ar->target_type != TARGET_TYPE_AR6004)
1350 return -EINVAL;
1351
1352 /* temporarily disable system sleep */
1353 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1354 status = ath6kl_bmi_reg_read(ar, address, &param);
1355 if (status)
1356 return status;
1357
1358 options = param;
1359
1360 param |= ATH6KL_OPTION_SLEEP_DISABLE;
1361 status = ath6kl_bmi_reg_write(ar, address, param);
1362 if (status)
1363 return status;
1364
1365 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1366 status = ath6kl_bmi_reg_read(ar, address, &param);
1367 if (status)
1368 return status;
1369
1370 sleep = param;
1371
1372 param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1373 status = ath6kl_bmi_reg_write(ar, address, param);
1374 if (status)
1375 return status;
1376
1377 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1378 options, sleep);
1379
1380 /* program analog PLL register */
1381 /* no need to control 40/44MHz clock on AR6004 */
1382 if (ar->target_type != TARGET_TYPE_AR6004) {
1383 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1384 0xF9104001);
1385
1386 if (status)
1387 return status;
1388
1389 /* Run at 80/88MHz by default */
1390 param = SM(CPU_CLOCK_STANDARD, 1);
1391
1392 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1393 status = ath6kl_bmi_reg_write(ar, address, param);
1394 if (status)
1395 return status;
1396 }
1397
1398 param = 0;
1399 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1400 param = SM(LPO_CAL_ENABLE, 1);
1401 status = ath6kl_bmi_reg_write(ar, address, param);
1402 if (status)
1403 return status;
1404
1405 /* WAR to avoid SDIO CRC err */
1406 if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
1407 ath6kl_err("temporary war to avoid sdio crc error\n");
1408
1409 param = 0x20;
1410
1411 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1412 status = ath6kl_bmi_reg_write(ar, address, param);
1413 if (status)
1414 return status;
1415
1416 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1417 status = ath6kl_bmi_reg_write(ar, address, param);
1418 if (status)
1419 return status;
1420
1421 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1422 status = ath6kl_bmi_reg_write(ar, address, param);
1423 if (status)
1424 return status;
1425
1426 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1427 status = ath6kl_bmi_reg_write(ar, address, param);
1428 if (status)
1429 return status;
1430 }
1431
1432 /* write EEPROM data to Target RAM */
1433 status = ath6kl_upload_board_file(ar);
1434 if (status)
1435 return status;
1436
1437 /* transfer One time Programmable data */
1438 status = ath6kl_upload_otp(ar);
1439 if (status)
1440 return status;
1441
1442 /* Download Target firmware */
1443 status = ath6kl_upload_firmware(ar);
1444 if (status)
1445 return status;
1446
1447 status = ath6kl_upload_patch(ar);
1448 if (status)
1449 return status;
1450
1451 /* Download the test script */
1452 status = ath6kl_upload_testscript(ar);
1453 if (status)
1454 return status;
1455
1456 /* Restore system sleep */
1457 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1458 status = ath6kl_bmi_reg_write(ar, address, sleep);
1459 if (status)
1460 return status;
1461
1462 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1463 param = options | 0x20;
1464 status = ath6kl_bmi_reg_write(ar, address, param);
1465 if (status)
1466 return status;
1467
1468 return status;
1469 }
1470
1471 int ath6kl_init_hw_params(struct ath6kl *ar)
1472 {
1473 const struct ath6kl_hw *uninitialized_var(hw);
1474 int i;
1475
1476 for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
1477 hw = &hw_list[i];
1478
1479 if (hw->id == ar->version.target_ver)
1480 break;
1481 }
1482
1483 if (i == ARRAY_SIZE(hw_list)) {
1484 ath6kl_err("Unsupported hardware version: 0x%x\n",
1485 ar->version.target_ver);
1486 return -EINVAL;
1487 }
1488
1489 ar->hw = *hw;
1490
1491 ath6kl_dbg(ATH6KL_DBG_BOOT,
1492 "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1493 ar->version.target_ver, ar->target_type,
1494 ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1495 ath6kl_dbg(ATH6KL_DBG_BOOT,
1496 "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1497 ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1498 ar->hw.reserved_ram_size);
1499 ath6kl_dbg(ATH6KL_DBG_BOOT,
1500 "refclk_hz %d uarttx_pin %d",
1501 ar->hw.refclk_hz, ar->hw.uarttx_pin);
1502
1503 return 0;
1504 }
1505
1506 static const char *ath6kl_init_get_hif_name(enum ath6kl_hif_type type)
1507 {
1508 switch (type) {
1509 case ATH6KL_HIF_TYPE_SDIO:
1510 return "sdio";
1511 case ATH6KL_HIF_TYPE_USB:
1512 return "usb";
1513 }
1514
1515 return NULL;
1516 }
1517
1518 int ath6kl_init_hw_start(struct ath6kl *ar)
1519 {
1520 long timeleft;
1521 int ret, i;
1522
1523 ath6kl_dbg(ATH6KL_DBG_BOOT, "hw start\n");
1524
1525 ret = ath6kl_hif_power_on(ar);
1526 if (ret)
1527 return ret;
1528
1529 ret = ath6kl_configure_target(ar);
1530 if (ret)
1531 goto err_power_off;
1532
1533 ret = ath6kl_init_upload(ar);
1534 if (ret)
1535 goto err_power_off;
1536
1537 /* Do we need to finish the BMI phase */
1538 /* FIXME: return error from ath6kl_bmi_done() */
1539 if (ath6kl_bmi_done(ar)) {
1540 ret = -EIO;
1541 goto err_power_off;
1542 }
1543
1544 /*
1545 * The reason we have to wait for the target here is that the
1546 * driver layer has to init BMI in order to set the host block
1547 * size.
1548 */
1549 if (ath6kl_htc_wait_target(ar->htc_target)) {
1550 ret = -EIO;
1551 goto err_power_off;
1552 }
1553
1554 if (ath6kl_init_service_ep(ar)) {
1555 ret = -EIO;
1556 goto err_cleanup_scatter;
1557 }
1558
1559 /* setup credit distribution */
1560 ath6kl_credit_setup(ar->htc_target, &ar->credit_state_info);
1561
1562 /* start HTC */
1563 ret = ath6kl_htc_start(ar->htc_target);
1564 if (ret) {
1565 /* FIXME: call this */
1566 ath6kl_cookie_cleanup(ar);
1567 goto err_cleanup_scatter;
1568 }
1569
1570 /* Wait for Wmi event to be ready */
1571 timeleft = wait_event_interruptible_timeout(ar->event_wq,
1572 test_bit(WMI_READY,
1573 &ar->flag),
1574 WMI_TIMEOUT);
1575
1576 ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1577
1578
1579 if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
1580 ath6kl_info("%s %s fw %s api %d%s\n",
1581 ar->hw.name,
1582 ath6kl_init_get_hif_name(ar->hif_type),
1583 ar->wiphy->fw_version,
1584 ar->fw_api,
1585 test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
1586 }
1587
1588 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1589 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1590 ATH6KL_ABI_VERSION, ar->version.abi_ver);
1591 ret = -EIO;
1592 goto err_htc_stop;
1593 }
1594
1595 if (!timeleft || signal_pending(current)) {
1596 ath6kl_err("wmi is not ready or wait was interrupted\n");
1597 ret = -EIO;
1598 goto err_htc_stop;
1599 }
1600
1601 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1602
1603 /* communicate the wmi protocol verision to the target */
1604 /* FIXME: return error */
1605 if ((ath6kl_set_host_app_area(ar)) != 0)
1606 ath6kl_err("unable to set the host app area\n");
1607
1608 for (i = 0; i < ar->vif_max; i++) {
1609 ret = ath6kl_target_config_wlan_params(ar, i);
1610 if (ret)
1611 goto err_htc_stop;
1612 }
1613
1614 ar->state = ATH6KL_STATE_ON;
1615
1616 return 0;
1617
1618 err_htc_stop:
1619 ath6kl_htc_stop(ar->htc_target);
1620 err_cleanup_scatter:
1621 ath6kl_hif_cleanup_scatter(ar);
1622 err_power_off:
1623 ath6kl_hif_power_off(ar);
1624
1625 return ret;
1626 }
1627
1628 int ath6kl_init_hw_stop(struct ath6kl *ar)
1629 {
1630 int ret;
1631
1632 ath6kl_dbg(ATH6KL_DBG_BOOT, "hw stop\n");
1633
1634 ath6kl_htc_stop(ar->htc_target);
1635
1636 ath6kl_hif_stop(ar);
1637
1638 ath6kl_bmi_reset(ar);
1639
1640 ret = ath6kl_hif_power_off(ar);
1641 if (ret)
1642 ath6kl_warn("failed to power off hif: %d\n", ret);
1643
1644 ar->state = ATH6KL_STATE_OFF;
1645
1646 return 0;
1647 }
1648
1649 /* FIXME: move this to cfg80211.c and rename to ath6kl_cfg80211_vif_stop() */
1650 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready)
1651 {
1652 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1653 bool discon_issued;
1654
1655 netif_stop_queue(vif->ndev);
1656
1657 clear_bit(WLAN_ENABLED, &vif->flags);
1658
1659 if (wmi_ready) {
1660 discon_issued = test_bit(CONNECTED, &vif->flags) ||
1661 test_bit(CONNECT_PEND, &vif->flags);
1662 ath6kl_disconnect(vif);
1663 del_timer(&vif->disconnect_timer);
1664
1665 if (discon_issued)
1666 ath6kl_disconnect_event(vif, DISCONNECT_CMD,
1667 (vif->nw_type & AP_NETWORK) ?
1668 bcast_mac : vif->bssid,
1669 0, NULL, 0);
1670 }
1671
1672 if (vif->scan_req) {
1673 cfg80211_scan_done(vif->scan_req, true);
1674 vif->scan_req = NULL;
1675 }
1676 }
1677
1678 void ath6kl_stop_txrx(struct ath6kl *ar)
1679 {
1680 struct ath6kl_vif *vif, *tmp_vif;
1681 int i;
1682
1683 set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1684
1685 if (down_interruptible(&ar->sem)) {
1686 ath6kl_err("down_interruptible failed\n");
1687 return;
1688 }
1689
1690 for (i = 0; i < AP_MAX_NUM_STA; i++)
1691 aggr_reset_state(ar->sta_list[i].aggr_conn);
1692
1693 spin_lock_bh(&ar->list_lock);
1694 list_for_each_entry_safe(vif, tmp_vif, &ar->vif_list, list) {
1695 list_del(&vif->list);
1696 spin_unlock_bh(&ar->list_lock);
1697 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1698 rtnl_lock();
1699 ath6kl_cfg80211_vif_cleanup(vif);
1700 rtnl_unlock();
1701 spin_lock_bh(&ar->list_lock);
1702 }
1703 spin_unlock_bh(&ar->list_lock);
1704
1705 clear_bit(WMI_READY, &ar->flag);
1706
1707 /*
1708 * After wmi_shudown all WMI events will be dropped. We
1709 * need to cleanup the buffers allocated in AP mode and
1710 * give disconnect notification to stack, which usually
1711 * happens in the disconnect_event. Simulate the disconnect
1712 * event by calling the function directly. Sometimes
1713 * disconnect_event will be received when the debug logs
1714 * are collected.
1715 */
1716 ath6kl_wmi_shutdown(ar->wmi);
1717
1718 clear_bit(WMI_ENABLED, &ar->flag);
1719 if (ar->htc_target) {
1720 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
1721 ath6kl_htc_stop(ar->htc_target);
1722 }
1723
1724 /*
1725 * Try to reset the device if we can. The driver may have been
1726 * configure NOT to reset the target during a debug session.
1727 */
1728 ath6kl_dbg(ATH6KL_DBG_TRC,
1729 "attempting to reset target on instance destroy\n");
1730 ath6kl_reset_device(ar, ar->target_type, true, true);
1731
1732 clear_bit(WLAN_ENABLED, &ar->flag);
1733 }
1734 EXPORT_SYMBOL(ath6kl_stop_txrx);
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