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-rw-r--r--drivers/net/wireless/ath/ath6kl/init.c1727
1 files changed, 1727 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
new file mode 100644
index 000000000000..c1d2366704b5
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -0,0 +1,1727 @@
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/of.h>
20#include <linux/mmc/sdio_func.h>
21#include "core.h"
22#include "cfg80211.h"
23#include "target.h"
24#include "debug.h"
25#include "hif-ops.h"
26
27unsigned int debug_mask;
28static unsigned int testmode;
29
30module_param(debug_mask, uint, 0644);
31module_param(testmode, uint, 0644);
32
33/*
34 * Include definitions here that can be used to tune the WLAN module
35 * behavior. Different customers can tune the behavior as per their needs,
36 * here.
37 */
38
39/*
40 * This configuration item enable/disable keepalive support.
41 * Keepalive support: In the absence of any data traffic to AP, null
42 * frames will be sent to the AP at periodic interval, to keep the association
43 * active. This configuration item defines the periodic interval.
44 * Use value of zero to disable keepalive support
45 * Default: 60 seconds
46 */
47#define WLAN_CONFIG_KEEP_ALIVE_INTERVAL 60
48
49/*
50 * This configuration item sets the value of disconnect timeout
51 * Firmware delays sending the disconnec event to the host for this
52 * timeout after is gets disconnected from the current AP.
53 * If the firmware successly roams within the disconnect timeout
54 * it sends a new connect event
55 */
56#define WLAN_CONFIG_DISCONNECT_TIMEOUT 10
57
58#define CONFIG_AR600x_DEBUG_UART_TX_PIN 8
59
60#define ATH6KL_DATA_OFFSET 64
61struct sk_buff *ath6kl_buf_alloc(int size)
62{
63 struct sk_buff *skb;
64 u16 reserved;
65
66 /* Add chacheline space at front and back of buffer */
67 reserved = (2 * L1_CACHE_BYTES) + ATH6KL_DATA_OFFSET +
68 sizeof(struct htc_packet) + ATH6KL_HTC_ALIGN_BYTES;
69 skb = dev_alloc_skb(size + reserved);
70
71 if (skb)
72 skb_reserve(skb, reserved - L1_CACHE_BYTES);
73 return skb;
74}
75
76void ath6kl_init_profile_info(struct ath6kl *ar)
77{
78 ar->ssid_len = 0;
79 memset(ar->ssid, 0, sizeof(ar->ssid));
80
81 ar->dot11_auth_mode = OPEN_AUTH;
82 ar->auth_mode = NONE_AUTH;
83 ar->prwise_crypto = NONE_CRYPT;
84 ar->prwise_crypto_len = 0;
85 ar->grp_crypto = NONE_CRYPT;
86 ar->grp_crypto_len = 0;
87 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list));
88 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
89 memset(ar->bssid, 0, sizeof(ar->bssid));
90 ar->bss_ch = 0;
91 ar->nw_type = ar->next_mode = INFRA_NETWORK;
92}
93
94static u8 ath6kl_get_fw_iftype(struct ath6kl *ar)
95{
96 switch (ar->nw_type) {
97 case INFRA_NETWORK:
98 return HI_OPTION_FW_MODE_BSS_STA;
99 case ADHOC_NETWORK:
100 return HI_OPTION_FW_MODE_IBSS;
101 case AP_NETWORK:
102 return HI_OPTION_FW_MODE_AP;
103 default:
104 ath6kl_err("Unsupported interface type :%d\n", ar->nw_type);
105 return 0xff;
106 }
107}
108
109static int ath6kl_set_host_app_area(struct ath6kl *ar)
110{
111 u32 address, data;
112 struct host_app_area host_app_area;
113
114 /* Fetch the address of the host_app_area_s
115 * instance in the host interest area */
116 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_app_host_interest));
117 address = TARG_VTOP(ar->target_type, address);
118
119 if (ath6kl_diag_read32(ar, address, &data))
120 return -EIO;
121
122 address = TARG_VTOP(ar->target_type, data);
123 host_app_area.wmi_protocol_ver = WMI_PROTOCOL_VERSION;
124 if (ath6kl_diag_write(ar, address, (u8 *) &host_app_area,
125 sizeof(struct host_app_area)))
126 return -EIO;
127
128 return 0;
129}
130
131static inline void set_ac2_ep_map(struct ath6kl *ar,
132 u8 ac,
133 enum htc_endpoint_id ep)
134{
135 ar->ac2ep_map[ac] = ep;
136 ar->ep2ac_map[ep] = ac;
137}
138
139/* connect to a service */
140static int ath6kl_connectservice(struct ath6kl *ar,
141 struct htc_service_connect_req *con_req,
142 char *desc)
143{
144 int status;
145 struct htc_service_connect_resp response;
146
147 memset(&response, 0, sizeof(response));
148
149 status = ath6kl_htc_conn_service(ar->htc_target, con_req, &response);
150 if (status) {
151 ath6kl_err("failed to connect to %s service status:%d\n",
152 desc, status);
153 return status;
154 }
155
156 switch (con_req->svc_id) {
157 case WMI_CONTROL_SVC:
158 if (test_bit(WMI_ENABLED, &ar->flag))
159 ath6kl_wmi_set_control_ep(ar->wmi, response.endpoint);
160 ar->ctrl_ep = response.endpoint;
161 break;
162 case WMI_DATA_BE_SVC:
163 set_ac2_ep_map(ar, WMM_AC_BE, response.endpoint);
164 break;
165 case WMI_DATA_BK_SVC:
166 set_ac2_ep_map(ar, WMM_AC_BK, response.endpoint);
167 break;
168 case WMI_DATA_VI_SVC:
169 set_ac2_ep_map(ar, WMM_AC_VI, response.endpoint);
170 break;
171 case WMI_DATA_VO_SVC:
172 set_ac2_ep_map(ar, WMM_AC_VO, response.endpoint);
173 break;
174 default:
175 ath6kl_err("service id is not mapped %d\n", con_req->svc_id);
176 return -EINVAL;
177 }
178
179 return 0;
180}
181
182static int ath6kl_init_service_ep(struct ath6kl *ar)
183{
184 struct htc_service_connect_req connect;
185
186 memset(&connect, 0, sizeof(connect));
187
188 /* these fields are the same for all service endpoints */
189 connect.ep_cb.rx = ath6kl_rx;
190 connect.ep_cb.rx_refill = ath6kl_rx_refill;
191 connect.ep_cb.tx_full = ath6kl_tx_queue_full;
192
193 /*
194 * Set the max queue depth so that our ath6kl_tx_queue_full handler
195 * gets called.
196 */
197 connect.max_txq_depth = MAX_DEFAULT_SEND_QUEUE_DEPTH;
198 connect.ep_cb.rx_refill_thresh = ATH6KL_MAX_RX_BUFFERS / 4;
199 if (!connect.ep_cb.rx_refill_thresh)
200 connect.ep_cb.rx_refill_thresh++;
201
202 /* connect to control service */
203 connect.svc_id = WMI_CONTROL_SVC;
204 if (ath6kl_connectservice(ar, &connect, "WMI CONTROL"))
205 return -EIO;
206
207 connect.flags |= HTC_FLGS_TX_BNDL_PAD_EN;
208
209 /*
210 * Limit the HTC message size on the send path, although e can
211 * receive A-MSDU frames of 4K, we will only send ethernet-sized
212 * (802.3) frames on the send path.
213 */
214 connect.max_rxmsg_sz = WMI_MAX_TX_DATA_FRAME_LENGTH;
215
216 /*
217 * To reduce the amount of committed memory for larger A_MSDU
218 * frames, use the recv-alloc threshold mechanism for larger
219 * packets.
220 */
221 connect.ep_cb.rx_alloc_thresh = ATH6KL_BUFFER_SIZE;
222 connect.ep_cb.rx_allocthresh = ath6kl_alloc_amsdu_rxbuf;
223
224 /*
225 * For the remaining data services set the connection flag to
226 * reduce dribbling, if configured to do so.
227 */
228 connect.conn_flags |= HTC_CONN_FLGS_REDUCE_CRED_DRIB;
229 connect.conn_flags &= ~HTC_CONN_FLGS_THRESH_MASK;
230 connect.conn_flags |= HTC_CONN_FLGS_THRESH_LVL_HALF;
231
232 connect.svc_id = WMI_DATA_BE_SVC;
233
234 if (ath6kl_connectservice(ar, &connect, "WMI DATA BE"))
235 return -EIO;
236
237 /* connect to back-ground map this to WMI LOW_PRI */
238 connect.svc_id = WMI_DATA_BK_SVC;
239 if (ath6kl_connectservice(ar, &connect, "WMI DATA BK"))
240 return -EIO;
241
242 /* connect to Video service, map this to to HI PRI */
243 connect.svc_id = WMI_DATA_VI_SVC;
244 if (ath6kl_connectservice(ar, &connect, "WMI DATA VI"))
245 return -EIO;
246
247 /*
248 * Connect to VO service, this is currently not mapped to a WMI
249 * priority stream due to historical reasons. WMI originally
250 * defined 3 priorities over 3 mailboxes We can change this when
251 * WMI is reworked so that priorities are not dependent on
252 * mailboxes.
253 */
254 connect.svc_id = WMI_DATA_VO_SVC;
255 if (ath6kl_connectservice(ar, &connect, "WMI DATA VO"))
256 return -EIO;
257
258 return 0;
259}
260
261static void ath6kl_init_control_info(struct ath6kl *ar)
262{
263 u8 ctr;
264
265 clear_bit(WMI_ENABLED, &ar->flag);
266 ath6kl_init_profile_info(ar);
267 ar->def_txkey_index = 0;
268 memset(ar->wep_key_list, 0, sizeof(ar->wep_key_list));
269 ar->ch_hint = 0;
270 ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL;
271 ar->listen_intvl_b = 0;
272 ar->tx_pwr = 0;
273 clear_bit(SKIP_SCAN, &ar->flag);
274 set_bit(WMM_ENABLED, &ar->flag);
275 ar->intra_bss = 1;
276 memset(&ar->sc_params, 0, sizeof(ar->sc_params));
277 ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT;
278 ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS;
279 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD;
280
281 memset((u8 *)ar->sta_list, 0,
282 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta));
283
284 spin_lock_init(&ar->mcastpsq_lock);
285
286 /* Init the PS queues */
287 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
288 spin_lock_init(&ar->sta_list[ctr].psq_lock);
289 skb_queue_head_init(&ar->sta_list[ctr].psq);
290 }
291
292 skb_queue_head_init(&ar->mcastpsq);
293
294 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3);
295}
296
297/*
298 * Set HTC/Mbox operational parameters, this can only be called when the
299 * target is in the BMI phase.
300 */
301static int ath6kl_set_htc_params(struct ath6kl *ar, u32 mbox_isr_yield_val,
302 u8 htc_ctrl_buf)
303{
304 int status;
305 u32 blk_size;
306
307 blk_size = ar->mbox_info.block_size;
308
309 if (htc_ctrl_buf)
310 blk_size |= ((u32)htc_ctrl_buf) << 16;
311
312 /* set the host interest area for the block size */
313 status = ath6kl_bmi_write(ar,
314 ath6kl_get_hi_item_addr(ar,
315 HI_ITEM(hi_mbox_io_block_sz)),
316 (u8 *)&blk_size,
317 4);
318 if (status) {
319 ath6kl_err("bmi_write_memory for IO block size failed\n");
320 goto out;
321 }
322
323 ath6kl_dbg(ATH6KL_DBG_TRC, "block size set: %d (target addr:0x%X)\n",
324 blk_size,
325 ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_mbox_io_block_sz)));
326
327 if (mbox_isr_yield_val) {
328 /* set the host interest area for the mbox ISR yield limit */
329 status = ath6kl_bmi_write(ar,
330 ath6kl_get_hi_item_addr(ar,
331 HI_ITEM(hi_mbox_isr_yield_limit)),
332 (u8 *)&mbox_isr_yield_val,
333 4);
334 if (status) {
335 ath6kl_err("bmi_write_memory for yield limit failed\n");
336 goto out;
337 }
338 }
339
340out:
341 return status;
342}
343
344#define REG_DUMP_COUNT_AR6003 60
345#define REGISTER_DUMP_LEN_MAX 60
346
347static void ath6kl_dump_target_assert_info(struct ath6kl *ar)
348{
349 u32 address;
350 u32 regdump_loc = 0;
351 int status;
352 u32 regdump_val[REGISTER_DUMP_LEN_MAX];
353 u32 i;
354
355 if (ar->target_type != TARGET_TYPE_AR6003)
356 return;
357
358 /* the reg dump pointer is copied to the host interest area */
359 address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state));
360 address = TARG_VTOP(ar->target_type, address);
361
362 /* read RAM location through diagnostic window */
363 status = ath6kl_diag_read32(ar, address, &regdump_loc);
364
365 if (status || !regdump_loc) {
366 ath6kl_err("failed to get ptr to register dump area\n");
367 return;
368 }
369
370 ath6kl_dbg(ATH6KL_DBG_TRC, "location of register dump data: 0x%X\n",
371 regdump_loc);
372 regdump_loc = TARG_VTOP(ar->target_type, regdump_loc);
373
374 /* fetch register dump data */
375 status = ath6kl_diag_read(ar, regdump_loc, (u8 *)&regdump_val[0],
376 REG_DUMP_COUNT_AR6003 * (sizeof(u32)));
377
378 if (status) {
379 ath6kl_err("failed to get register dump\n");
380 return;
381 }
382 ath6kl_dbg(ATH6KL_DBG_TRC, "Register Dump:\n");
383
384 for (i = 0; i < REG_DUMP_COUNT_AR6003; i++)
385 ath6kl_dbg(ATH6KL_DBG_TRC, " %d : 0x%8.8X\n",
386 i, regdump_val[i]);
387
388}
389
390void ath6kl_target_failure(struct ath6kl *ar)
391{
392 ath6kl_err("target asserted\n");
393
394 /* try dumping target assertion information (if any) */
395 ath6kl_dump_target_assert_info(ar);
396
397}
398
399static int ath6kl_target_config_wlan_params(struct ath6kl *ar)
400{
401 int status = 0;
402 int ret;
403
404 /*
405 * Configure the device for rx dot11 header rules. "0,0" are the
406 * default values. Required if checksum offload is needed. Set
407 * RxMetaVersion to 2.
408 */
409 if (ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
410 ar->rx_meta_ver, 0, 0)) {
411 ath6kl_err("unable to set the rx frame format\n");
412 status = -EIO;
413 }
414
415 if (ar->conf_flags & ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN)
416 if ((ath6kl_wmi_pmparams_cmd(ar->wmi, 0, 1, 0, 0, 1,
417 IGNORE_POWER_SAVE_FAIL_EVENT_DURING_SCAN)) != 0) {
418 ath6kl_err("unable to set power save fail event policy\n");
419 status = -EIO;
420 }
421
422 if (!(ar->conf_flags & ATH6KL_CONF_IGNORE_ERP_BARKER))
423 if ((ath6kl_wmi_set_lpreamble_cmd(ar->wmi, 0,
424 WMI_DONOT_IGNORE_BARKER_IN_ERP)) != 0) {
425 ath6kl_err("unable to set barker preamble policy\n");
426 status = -EIO;
427 }
428
429 if (ath6kl_wmi_set_keepalive_cmd(ar->wmi,
430 WLAN_CONFIG_KEEP_ALIVE_INTERVAL)) {
431 ath6kl_err("unable to set keep alive interval\n");
432 status = -EIO;
433 }
434
435 if (ath6kl_wmi_disctimeout_cmd(ar->wmi,
436 WLAN_CONFIG_DISCONNECT_TIMEOUT)) {
437 ath6kl_err("unable to set disconnect timeout\n");
438 status = -EIO;
439 }
440
441 if (!(ar->conf_flags & ATH6KL_CONF_ENABLE_TX_BURST))
442 if (ath6kl_wmi_set_wmm_txop(ar->wmi, WMI_TXOP_DISABLED)) {
443 ath6kl_err("unable to set txop bursting\n");
444 status = -EIO;
445 }
446
447 if (ar->p2p) {
448 ret = ath6kl_wmi_info_req_cmd(ar->wmi,
449 P2P_FLAG_CAPABILITIES_REQ |
450 P2P_FLAG_MACADDR_REQ |
451 P2P_FLAG_HMODEL_REQ);
452 if (ret) {
453 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to request P2P "
454 "capabilities (%d) - assuming P2P not "
455 "supported\n", ret);
456 ar->p2p = 0;
457 }
458 }
459
460 if (ar->p2p) {
461 /* Enable Probe Request reporting for P2P */
462 ret = ath6kl_wmi_probe_report_req_cmd(ar->wmi, true);
463 if (ret) {
464 ath6kl_dbg(ATH6KL_DBG_TRC, "failed to enable Probe "
465 "Request reporting (%d)\n", ret);
466 }
467 }
468
469 return status;
470}
471
472int ath6kl_configure_target(struct ath6kl *ar)
473{
474 u32 param, ram_reserved_size;
475 u8 fw_iftype;
476
477 fw_iftype = ath6kl_get_fw_iftype(ar);
478 if (fw_iftype == 0xff)
479 return -EINVAL;
480
481 /* Tell target which HTC version it is used*/
482 param = HTC_PROTOCOL_VERSION;
483 if (ath6kl_bmi_write(ar,
484 ath6kl_get_hi_item_addr(ar,
485 HI_ITEM(hi_app_host_interest)),
486 (u8 *)&param, 4) != 0) {
487 ath6kl_err("bmi_write_memory for htc version failed\n");
488 return -EIO;
489 }
490
491 /* set the firmware mode to STA/IBSS/AP */
492 param = 0;
493
494 if (ath6kl_bmi_read(ar,
495 ath6kl_get_hi_item_addr(ar,
496 HI_ITEM(hi_option_flag)),
497 (u8 *)&param, 4) != 0) {
498 ath6kl_err("bmi_read_memory for setting fwmode failed\n");
499 return -EIO;
500 }
501
502 param |= (1 << HI_OPTION_NUM_DEV_SHIFT);
503 param |= (fw_iftype << HI_OPTION_FW_MODE_SHIFT);
504 if (ar->p2p && fw_iftype == HI_OPTION_FW_MODE_BSS_STA) {
505 param |= HI_OPTION_FW_SUBMODE_P2PDEV <<
506 HI_OPTION_FW_SUBMODE_SHIFT;
507 }
508 param |= (0 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
509 param |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
510
511 if (ath6kl_bmi_write(ar,
512 ath6kl_get_hi_item_addr(ar,
513 HI_ITEM(hi_option_flag)),
514 (u8 *)&param,
515 4) != 0) {
516 ath6kl_err("bmi_write_memory for setting fwmode failed\n");
517 return -EIO;
518 }
519
520 ath6kl_dbg(ATH6KL_DBG_TRC, "firmware mode set\n");
521
522 /*
523 * Hardcode the address use for the extended board data
524 * Ideally this should be pre-allocate by the OS at boot time
525 * But since it is a new feature and board data is loaded
526 * at init time, we have to workaround this from host.
527 * It is difficult to patch the firmware boot code,
528 * but possible in theory.
529 */
530
531 param = ar->hw.board_ext_data_addr;
532 ram_reserved_size = ar->hw.reserved_ram_size;
533
534 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
535 HI_ITEM(hi_board_ext_data)),
536 (u8 *)&param, 4) != 0) {
537 ath6kl_err("bmi_write_memory for hi_board_ext_data failed\n");
538 return -EIO;
539 }
540
541 if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
542 HI_ITEM(hi_end_ram_reserve_sz)),
543 (u8 *)&ram_reserved_size, 4) != 0) {
544 ath6kl_err("bmi_write_memory for hi_end_ram_reserve_sz failed\n");
545 return -EIO;
546 }
547
548 /* set the block size for the target */
549 if (ath6kl_set_htc_params(ar, MBOX_YIELD_LIMIT, 0))
550 /* use default number of control buffers */
551 return -EIO;
552
553 return 0;
554}
555
556struct ath6kl *ath6kl_core_alloc(struct device *sdev)
557{
558 struct net_device *dev;
559 struct ath6kl *ar;
560 struct wireless_dev *wdev;
561
562 wdev = ath6kl_cfg80211_init(sdev);
563 if (!wdev) {
564 ath6kl_err("ath6kl_cfg80211_init failed\n");
565 return NULL;
566 }
567
568 ar = wdev_priv(wdev);
569 ar->dev = sdev;
570 ar->wdev = wdev;
571 wdev->iftype = NL80211_IFTYPE_STATION;
572
573 if (ath6kl_debug_init(ar)) {
574 ath6kl_err("Failed to initialize debugfs\n");
575 ath6kl_cfg80211_deinit(ar);
576 return NULL;
577 }
578
579 dev = alloc_netdev(0, "wlan%d", ether_setup);
580 if (!dev) {
581 ath6kl_err("no memory for network device instance\n");
582 ath6kl_cfg80211_deinit(ar);
583 return NULL;
584 }
585
586 dev->ieee80211_ptr = wdev;
587 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
588 wdev->netdev = dev;
589 ar->sme_state = SME_DISCONNECTED;
590
591 init_netdev(dev);
592
593 ar->net_dev = dev;
594 set_bit(WLAN_ENABLED, &ar->flag);
595
596 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
597
598 spin_lock_init(&ar->lock);
599
600 ath6kl_init_control_info(ar);
601 init_waitqueue_head(&ar->event_wq);
602 sema_init(&ar->sem, 1);
603 clear_bit(DESTROY_IN_PROGRESS, &ar->flag);
604
605 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue);
606
607 setup_timer(&ar->disconnect_timer, disconnect_timer_handler,
608 (unsigned long) dev);
609
610 return ar;
611}
612
613int ath6kl_unavail_ev(struct ath6kl *ar)
614{
615 ath6kl_destroy(ar->net_dev, 1);
616
617 return 0;
618}
619
620/* firmware upload */
621static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
622 u8 **fw, size_t *fw_len)
623{
624 const struct firmware *fw_entry;
625 int ret;
626
627 ret = request_firmware(&fw_entry, filename, ar->dev);
628 if (ret)
629 return ret;
630
631 *fw_len = fw_entry->size;
632 *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
633
634 if (*fw == NULL)
635 ret = -ENOMEM;
636
637 release_firmware(fw_entry);
638
639 return ret;
640}
641
642#ifdef CONFIG_OF
643static const char *get_target_ver_dir(const struct ath6kl *ar)
644{
645 switch (ar->version.target_ver) {
646 case AR6003_REV1_VERSION:
647 return "ath6k/AR6003/hw1.0";
648 case AR6003_REV2_VERSION:
649 return "ath6k/AR6003/hw2.0";
650 case AR6003_REV3_VERSION:
651 return "ath6k/AR6003/hw2.1.1";
652 }
653 ath6kl_warn("%s: unsupported target version 0x%x.\n", __func__,
654 ar->version.target_ver);
655 return NULL;
656}
657
658/*
659 * Check the device tree for a board-id and use it to construct
660 * the pathname to the firmware file. Used (for now) to find a
661 * fallback to the "bdata.bin" file--typically a symlink to the
662 * appropriate board-specific file.
663 */
664static bool check_device_tree(struct ath6kl *ar)
665{
666 static const char *board_id_prop = "atheros,board-id";
667 struct device_node *node;
668 char board_filename[64];
669 const char *board_id;
670 int ret;
671
672 for_each_compatible_node(node, NULL, "atheros,ath6kl") {
673 board_id = of_get_property(node, board_id_prop, NULL);
674 if (board_id == NULL) {
675 ath6kl_warn("No \"%s\" property on %s node.\n",
676 board_id_prop, node->name);
677 continue;
678 }
679 snprintf(board_filename, sizeof(board_filename),
680 "%s/bdata.%s.bin", get_target_ver_dir(ar), board_id);
681
682 ret = ath6kl_get_fw(ar, board_filename, &ar->fw_board,
683 &ar->fw_board_len);
684 if (ret) {
685 ath6kl_err("Failed to get DT board file %s: %d\n",
686 board_filename, ret);
687 continue;
688 }
689 return true;
690 }
691 return false;
692}
693#else
694static bool check_device_tree(struct ath6kl *ar)
695{
696 return false;
697}
698#endif /* CONFIG_OF */
699
700static int ath6kl_fetch_board_file(struct ath6kl *ar)
701{
702 const char *filename;
703 int ret;
704
705 if (ar->fw_board != NULL)
706 return 0;
707
708 switch (ar->version.target_ver) {
709 case AR6003_REV2_VERSION:
710 filename = AR6003_REV2_BOARD_DATA_FILE;
711 break;
712 case AR6004_REV1_VERSION:
713 filename = AR6004_REV1_BOARD_DATA_FILE;
714 break;
715 default:
716 filename = AR6003_REV3_BOARD_DATA_FILE;
717 break;
718 }
719
720 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
721 &ar->fw_board_len);
722 if (ret == 0) {
723 /* managed to get proper board file */
724 return 0;
725 }
726
727 if (check_device_tree(ar)) {
728 /* got board file from device tree */
729 return 0;
730 }
731
732 /* there was no proper board file, try to use default instead */
733 ath6kl_warn("Failed to get board file %s (%d), trying to find default board file.\n",
734 filename, ret);
735
736 switch (ar->version.target_ver) {
737 case AR6003_REV2_VERSION:
738 filename = AR6003_REV2_DEFAULT_BOARD_DATA_FILE;
739 break;
740 case AR6004_REV1_VERSION:
741 filename = AR6004_REV1_DEFAULT_BOARD_DATA_FILE;
742 break;
743 default:
744 filename = AR6003_REV3_DEFAULT_BOARD_DATA_FILE;
745 break;
746 }
747
748 ret = ath6kl_get_fw(ar, filename, &ar->fw_board,
749 &ar->fw_board_len);
750 if (ret) {
751 ath6kl_err("Failed to get default board file %s: %d\n",
752 filename, ret);
753 return ret;
754 }
755
756 ath6kl_warn("WARNING! No proper board file was not found, instead using a default board file.\n");
757 ath6kl_warn("Most likely your hardware won't work as specified. Install correct board file!\n");
758
759 return 0;
760}
761
762static int ath6kl_fetch_otp_file(struct ath6kl *ar)
763{
764 const char *filename;
765 int ret;
766
767 if (ar->fw_otp != NULL)
768 return 0;
769
770 switch (ar->version.target_ver) {
771 case AR6003_REV2_VERSION:
772 filename = AR6003_REV2_OTP_FILE;
773 break;
774 case AR6004_REV1_VERSION:
775 ath6kl_dbg(ATH6KL_DBG_TRC, "AR6004 doesn't need OTP file\n");
776 return 0;
777 break;
778 default:
779 filename = AR6003_REV3_OTP_FILE;
780 break;
781 }
782
783 ret = ath6kl_get_fw(ar, filename, &ar->fw_otp,
784 &ar->fw_otp_len);
785 if (ret) {
786 ath6kl_err("Failed to get OTP file %s: %d\n",
787 filename, ret);
788 return ret;
789 }
790
791 return 0;
792}
793
794static int ath6kl_fetch_fw_file(struct ath6kl *ar)
795{
796 const char *filename;
797 int ret;
798
799 if (ar->fw != NULL)
800 return 0;
801
802 if (testmode) {
803 switch (ar->version.target_ver) {
804 case AR6003_REV2_VERSION:
805 filename = AR6003_REV2_TCMD_FIRMWARE_FILE;
806 break;
807 case AR6003_REV3_VERSION:
808 filename = AR6003_REV3_TCMD_FIRMWARE_FILE;
809 break;
810 case AR6004_REV1_VERSION:
811 ath6kl_warn("testmode not supported with ar6004\n");
812 return -EOPNOTSUPP;
813 default:
814 ath6kl_warn("unknown target version: 0x%x\n",
815 ar->version.target_ver);
816 return -EINVAL;
817 }
818
819 set_bit(TESTMODE, &ar->flag);
820
821 goto get_fw;
822 }
823
824 switch (ar->version.target_ver) {
825 case AR6003_REV2_VERSION:
826 filename = AR6003_REV2_FIRMWARE_FILE;
827 break;
828 case AR6004_REV1_VERSION:
829 filename = AR6004_REV1_FIRMWARE_FILE;
830 break;
831 default:
832 filename = AR6003_REV3_FIRMWARE_FILE;
833 break;
834 }
835
836get_fw:
837 ret = ath6kl_get_fw(ar, filename, &ar->fw, &ar->fw_len);
838 if (ret) {
839 ath6kl_err("Failed to get firmware file %s: %d\n",
840 filename, ret);
841 return ret;
842 }
843
844 return 0;
845}
846
847static int ath6kl_fetch_patch_file(struct ath6kl *ar)
848{
849 const char *filename;
850 int ret;
851
852 switch (ar->version.target_ver) {
853 case AR6003_REV2_VERSION:
854 filename = AR6003_REV2_PATCH_FILE;
855 break;
856 case AR6004_REV1_VERSION:
857 /* FIXME: implement for AR6004 */
858 return 0;
859 break;
860 default:
861 filename = AR6003_REV3_PATCH_FILE;
862 break;
863 }
864
865 if (ar->fw_patch == NULL) {
866 ret = ath6kl_get_fw(ar, filename, &ar->fw_patch,
867 &ar->fw_patch_len);
868 if (ret) {
869 ath6kl_err("Failed to get patch file %s: %d\n",
870 filename, ret);
871 return ret;
872 }
873 }
874
875 return 0;
876}
877
878static int ath6kl_fetch_fw_api1(struct ath6kl *ar)
879{
880 int ret;
881
882 ret = ath6kl_fetch_otp_file(ar);
883 if (ret)
884 return ret;
885
886 ret = ath6kl_fetch_fw_file(ar);
887 if (ret)
888 return ret;
889
890 ret = ath6kl_fetch_patch_file(ar);
891 if (ret)
892 return ret;
893
894 return 0;
895}
896
897static int ath6kl_fetch_fw_api2(struct ath6kl *ar)
898{
899 size_t magic_len, len, ie_len;
900 const struct firmware *fw;
901 struct ath6kl_fw_ie *hdr;
902 const char *filename;
903 const u8 *data;
904 int ret, ie_id, i, index, bit;
905 __le32 *val;
906
907 switch (ar->version.target_ver) {
908 case AR6003_REV2_VERSION:
909 filename = AR6003_REV2_FIRMWARE_2_FILE;
910 break;
911 case AR6003_REV3_VERSION:
912 filename = AR6003_REV3_FIRMWARE_2_FILE;
913 break;
914 case AR6004_REV1_VERSION:
915 filename = AR6004_REV1_FIRMWARE_2_FILE;
916 break;
917 default:
918 return -EOPNOTSUPP;
919 }
920
921 ret = request_firmware(&fw, filename, ar->dev);
922 if (ret)
923 return ret;
924
925 data = fw->data;
926 len = fw->size;
927
928 /* magic also includes the null byte, check that as well */
929 magic_len = strlen(ATH6KL_FIRMWARE_MAGIC) + 1;
930
931 if (len < magic_len) {
932 ret = -EINVAL;
933 goto out;
934 }
935
936 if (memcmp(data, ATH6KL_FIRMWARE_MAGIC, magic_len) != 0) {
937 ret = -EINVAL;
938 goto out;
939 }
940
941 len -= magic_len;
942 data += magic_len;
943
944 /* loop elements */
945 while (len > sizeof(struct ath6kl_fw_ie)) {
946 /* hdr is unaligned! */
947 hdr = (struct ath6kl_fw_ie *) data;
948
949 ie_id = le32_to_cpup(&hdr->id);
950 ie_len = le32_to_cpup(&hdr->len);
951
952 len -= sizeof(*hdr);
953 data += sizeof(*hdr);
954
955 if (len < ie_len) {
956 ret = -EINVAL;
957 goto out;
958 }
959
960 switch (ie_id) {
961 case ATH6KL_FW_IE_OTP_IMAGE:
962 ath6kl_dbg(ATH6KL_DBG_BOOT, "found otp image ie (%zd B)\n",
963 ie_len);
964
965 ar->fw_otp = kmemdup(data, ie_len, GFP_KERNEL);
966
967 if (ar->fw_otp == NULL) {
968 ret = -ENOMEM;
969 goto out;
970 }
971
972 ar->fw_otp_len = ie_len;
973 break;
974 case ATH6KL_FW_IE_FW_IMAGE:
975 ath6kl_dbg(ATH6KL_DBG_BOOT, "found fw image ie (%zd B)\n",
976 ie_len);
977
978 ar->fw = kmemdup(data, ie_len, GFP_KERNEL);
979
980 if (ar->fw == NULL) {
981 ret = -ENOMEM;
982 goto out;
983 }
984
985 ar->fw_len = ie_len;
986 break;
987 case ATH6KL_FW_IE_PATCH_IMAGE:
988 ath6kl_dbg(ATH6KL_DBG_BOOT, "found patch image ie (%zd B)\n",
989 ie_len);
990
991 ar->fw_patch = kmemdup(data, ie_len, GFP_KERNEL);
992
993 if (ar->fw_patch == NULL) {
994 ret = -ENOMEM;
995 goto out;
996 }
997
998 ar->fw_patch_len = ie_len;
999 break;
1000 case ATH6KL_FW_IE_RESERVED_RAM_SIZE:
1001 val = (__le32 *) data;
1002 ar->hw.reserved_ram_size = le32_to_cpup(val);
1003
1004 ath6kl_dbg(ATH6KL_DBG_BOOT,
1005 "found reserved ram size ie 0x%d\n",
1006 ar->hw.reserved_ram_size);
1007 break;
1008 case ATH6KL_FW_IE_CAPABILITIES:
1009 ath6kl_dbg(ATH6KL_DBG_BOOT,
1010 "found firmware capabilities ie (%zd B)\n",
1011 ie_len);
1012
1013 for (i = 0; i < ATH6KL_FW_CAPABILITY_MAX; i++) {
1014 index = ALIGN(i, 8) / 8;
1015 bit = i % 8;
1016
1017 if (data[index] & (1 << bit))
1018 __set_bit(i, ar->fw_capabilities);
1019 }
1020
1021 ath6kl_dbg_dump(ATH6KL_DBG_BOOT, "capabilities", "",
1022 ar->fw_capabilities,
1023 sizeof(ar->fw_capabilities));
1024 break;
1025 case ATH6KL_FW_IE_PATCH_ADDR:
1026 if (ie_len != sizeof(*val))
1027 break;
1028
1029 val = (__le32 *) data;
1030 ar->hw.dataset_patch_addr = le32_to_cpup(val);
1031
1032 ath6kl_dbg(ATH6KL_DBG_BOOT,
1033 "found patch address ie 0x%d\n",
1034 ar->hw.dataset_patch_addr);
1035 break;
1036 default:
1037 ath6kl_dbg(ATH6KL_DBG_BOOT, "Unknown fw ie: %u\n",
1038 le32_to_cpup(&hdr->id));
1039 break;
1040 }
1041
1042 len -= ie_len;
1043 data += ie_len;
1044 };
1045
1046 ret = 0;
1047out:
1048 release_firmware(fw);
1049
1050 return ret;
1051}
1052
1053static int ath6kl_fetch_firmwares(struct ath6kl *ar)
1054{
1055 int ret;
1056
1057 ret = ath6kl_fetch_board_file(ar);
1058 if (ret)
1059 return ret;
1060
1061 ret = ath6kl_fetch_fw_api2(ar);
1062 if (ret == 0) {
1063 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 2\n");
1064 return 0;
1065 }
1066
1067 ret = ath6kl_fetch_fw_api1(ar);
1068 if (ret)
1069 return ret;
1070
1071 ath6kl_dbg(ATH6KL_DBG_BOOT, "using fw api 1\n");
1072
1073 return 0;
1074}
1075
1076static int ath6kl_upload_board_file(struct ath6kl *ar)
1077{
1078 u32 board_address, board_ext_address, param;
1079 u32 board_data_size, board_ext_data_size;
1080 int ret;
1081
1082 if (WARN_ON(ar->fw_board == NULL))
1083 return -ENOENT;
1084
1085 /*
1086 * Determine where in Target RAM to write Board Data.
1087 * For AR6004, host determine Target RAM address for
1088 * writing board data.
1089 */
1090 if (ar->target_type == TARGET_TYPE_AR6004) {
1091 board_address = AR6004_REV1_BOARD_DATA_ADDRESS;
1092 ath6kl_bmi_write(ar,
1093 ath6kl_get_hi_item_addr(ar,
1094 HI_ITEM(hi_board_data)),
1095 (u8 *) &board_address, 4);
1096 } else {
1097 ath6kl_bmi_read(ar,
1098 ath6kl_get_hi_item_addr(ar,
1099 HI_ITEM(hi_board_data)),
1100 (u8 *) &board_address, 4);
1101 }
1102
1103 /* determine where in target ram to write extended board data */
1104 ath6kl_bmi_read(ar,
1105 ath6kl_get_hi_item_addr(ar,
1106 HI_ITEM(hi_board_ext_data)),
1107 (u8 *) &board_ext_address, 4);
1108
1109 if (board_ext_address == 0) {
1110 ath6kl_err("Failed to get board file target address.\n");
1111 return -EINVAL;
1112 }
1113
1114 switch (ar->target_type) {
1115 case TARGET_TYPE_AR6003:
1116 board_data_size = AR6003_BOARD_DATA_SZ;
1117 board_ext_data_size = AR6003_BOARD_EXT_DATA_SZ;
1118 break;
1119 case TARGET_TYPE_AR6004:
1120 board_data_size = AR6004_BOARD_DATA_SZ;
1121 board_ext_data_size = AR6004_BOARD_EXT_DATA_SZ;
1122 break;
1123 default:
1124 WARN_ON(1);
1125 return -EINVAL;
1126 break;
1127 }
1128
1129 if (ar->fw_board_len == (board_data_size +
1130 board_ext_data_size)) {
1131
1132 /* write extended board data */
1133 ath6kl_dbg(ATH6KL_DBG_BOOT,
1134 "writing extended board data to 0x%x (%d B)\n",
1135 board_ext_address, board_ext_data_size);
1136
1137 ret = ath6kl_bmi_write(ar, board_ext_address,
1138 ar->fw_board + board_data_size,
1139 board_ext_data_size);
1140 if (ret) {
1141 ath6kl_err("Failed to write extended board data: %d\n",
1142 ret);
1143 return ret;
1144 }
1145
1146 /* record that extended board data is initialized */
1147 param = (board_ext_data_size << 16) | 1;
1148
1149 ath6kl_bmi_write(ar,
1150 ath6kl_get_hi_item_addr(ar,
1151 HI_ITEM(hi_board_ext_data_config)),
1152 (unsigned char *) &param, 4);
1153 }
1154
1155 if (ar->fw_board_len < board_data_size) {
1156 ath6kl_err("Too small board file: %zu\n", ar->fw_board_len);
1157 ret = -EINVAL;
1158 return ret;
1159 }
1160
1161 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing board file to 0x%x (%d B)\n",
1162 board_address, board_data_size);
1163
1164 ret = ath6kl_bmi_write(ar, board_address, ar->fw_board,
1165 board_data_size);
1166
1167 if (ret) {
1168 ath6kl_err("Board file bmi write failed: %d\n", ret);
1169 return ret;
1170 }
1171
1172 /* record the fact that Board Data IS initialized */
1173 param = 1;
1174 ath6kl_bmi_write(ar,
1175 ath6kl_get_hi_item_addr(ar,
1176 HI_ITEM(hi_board_data_initialized)),
1177 (u8 *)&param, 4);
1178
1179 return ret;
1180}
1181
1182static int ath6kl_upload_otp(struct ath6kl *ar)
1183{
1184 u32 address, param;
1185 int ret;
1186
1187 if (WARN_ON(ar->fw_otp == NULL))
1188 return -ENOENT;
1189
1190 address = ar->hw.app_load_addr;
1191
1192 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing otp to 0x%x (%zd B)\n", address,
1193 ar->fw_otp_len);
1194
1195 ret = ath6kl_bmi_fast_download(ar, address, ar->fw_otp,
1196 ar->fw_otp_len);
1197 if (ret) {
1198 ath6kl_err("Failed to upload OTP file: %d\n", ret);
1199 return ret;
1200 }
1201
1202 /* read firmware start address */
1203 ret = ath6kl_bmi_read(ar,
1204 ath6kl_get_hi_item_addr(ar,
1205 HI_ITEM(hi_app_start)),
1206 (u8 *) &address, sizeof(address));
1207
1208 if (ret) {
1209 ath6kl_err("Failed to read hi_app_start: %d\n", ret);
1210 return ret;
1211 }
1212
1213 ar->hw.app_start_override_addr = address;
1214
1215 ath6kl_dbg(ATH6KL_DBG_BOOT, "app_start_override_addr 0x%x\n",
1216 ar->hw.app_start_override_addr);
1217
1218 /* execute the OTP code */
1219 ath6kl_dbg(ATH6KL_DBG_BOOT, "executing OTP at 0x%x\n", address);
1220 param = 0;
1221 ath6kl_bmi_execute(ar, address, &param);
1222
1223 return ret;
1224}
1225
1226static int ath6kl_upload_firmware(struct ath6kl *ar)
1227{
1228 u32 address;
1229 int ret;
1230
1231 if (WARN_ON(ar->fw == NULL))
1232 return -ENOENT;
1233
1234 address = ar->hw.app_load_addr;
1235
1236 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing firmware to 0x%x (%zd B)\n",
1237 address, ar->fw_len);
1238
1239 ret = ath6kl_bmi_fast_download(ar, address, ar->fw, ar->fw_len);
1240
1241 if (ret) {
1242 ath6kl_err("Failed to write firmware: %d\n", ret);
1243 return ret;
1244 }
1245
1246 /*
1247 * Set starting address for firmware
1248 * Don't need to setup app_start override addr on AR6004
1249 */
1250 if (ar->target_type != TARGET_TYPE_AR6004) {
1251 address = ar->hw.app_start_override_addr;
1252 ath6kl_bmi_set_app_start(ar, address);
1253 }
1254 return ret;
1255}
1256
1257static int ath6kl_upload_patch(struct ath6kl *ar)
1258{
1259 u32 address, param;
1260 int ret;
1261
1262 if (WARN_ON(ar->fw_patch == NULL))
1263 return -ENOENT;
1264
1265 address = ar->hw.dataset_patch_addr;
1266
1267 ath6kl_dbg(ATH6KL_DBG_BOOT, "writing patch to 0x%x (%zd B)\n",
1268 address, ar->fw_patch_len);
1269
1270 ret = ath6kl_bmi_write(ar, address, ar->fw_patch, ar->fw_patch_len);
1271 if (ret) {
1272 ath6kl_err("Failed to write patch file: %d\n", ret);
1273 return ret;
1274 }
1275
1276 param = address;
1277 ath6kl_bmi_write(ar,
1278 ath6kl_get_hi_item_addr(ar,
1279 HI_ITEM(hi_dset_list_head)),
1280 (unsigned char *) &param, 4);
1281
1282 return 0;
1283}
1284
1285static int ath6kl_init_upload(struct ath6kl *ar)
1286{
1287 u32 param, options, sleep, address;
1288 int status = 0;
1289
1290 if (ar->target_type != TARGET_TYPE_AR6003 &&
1291 ar->target_type != TARGET_TYPE_AR6004)
1292 return -EINVAL;
1293
1294 /* temporarily disable system sleep */
1295 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1296 status = ath6kl_bmi_reg_read(ar, address, &param);
1297 if (status)
1298 return status;
1299
1300 options = param;
1301
1302 param |= ATH6KL_OPTION_SLEEP_DISABLE;
1303 status = ath6kl_bmi_reg_write(ar, address, param);
1304 if (status)
1305 return status;
1306
1307 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1308 status = ath6kl_bmi_reg_read(ar, address, &param);
1309 if (status)
1310 return status;
1311
1312 sleep = param;
1313
1314 param |= SM(SYSTEM_SLEEP_DISABLE, 1);
1315 status = ath6kl_bmi_reg_write(ar, address, param);
1316 if (status)
1317 return status;
1318
1319 ath6kl_dbg(ATH6KL_DBG_TRC, "old options: %d, old sleep: %d\n",
1320 options, sleep);
1321
1322 /* program analog PLL register */
1323 /* no need to control 40/44MHz clock on AR6004 */
1324 if (ar->target_type != TARGET_TYPE_AR6004) {
1325 status = ath6kl_bmi_reg_write(ar, ATH6KL_ANALOG_PLL_REGISTER,
1326 0xF9104001);
1327
1328 if (status)
1329 return status;
1330
1331 /* Run at 80/88MHz by default */
1332 param = SM(CPU_CLOCK_STANDARD, 1);
1333
1334 address = RTC_BASE_ADDRESS + CPU_CLOCK_ADDRESS;
1335 status = ath6kl_bmi_reg_write(ar, address, param);
1336 if (status)
1337 return status;
1338 }
1339
1340 param = 0;
1341 address = RTC_BASE_ADDRESS + LPO_CAL_ADDRESS;
1342 param = SM(LPO_CAL_ENABLE, 1);
1343 status = ath6kl_bmi_reg_write(ar, address, param);
1344 if (status)
1345 return status;
1346
1347 /* WAR to avoid SDIO CRC err */
1348 if (ar->version.target_ver == AR6003_REV2_VERSION) {
1349 ath6kl_err("temporary war to avoid sdio crc error\n");
1350
1351 param = 0x20;
1352
1353 address = GPIO_BASE_ADDRESS + GPIO_PIN10_ADDRESS;
1354 status = ath6kl_bmi_reg_write(ar, address, param);
1355 if (status)
1356 return status;
1357
1358 address = GPIO_BASE_ADDRESS + GPIO_PIN11_ADDRESS;
1359 status = ath6kl_bmi_reg_write(ar, address, param);
1360 if (status)
1361 return status;
1362
1363 address = GPIO_BASE_ADDRESS + GPIO_PIN12_ADDRESS;
1364 status = ath6kl_bmi_reg_write(ar, address, param);
1365 if (status)
1366 return status;
1367
1368 address = GPIO_BASE_ADDRESS + GPIO_PIN13_ADDRESS;
1369 status = ath6kl_bmi_reg_write(ar, address, param);
1370 if (status)
1371 return status;
1372 }
1373
1374 /* write EEPROM data to Target RAM */
1375 status = ath6kl_upload_board_file(ar);
1376 if (status)
1377 return status;
1378
1379 /* transfer One time Programmable data */
1380 status = ath6kl_upload_otp(ar);
1381 if (status)
1382 return status;
1383
1384 /* Download Target firmware */
1385 status = ath6kl_upload_firmware(ar);
1386 if (status)
1387 return status;
1388
1389 status = ath6kl_upload_patch(ar);
1390 if (status)
1391 return status;
1392
1393 /* Restore system sleep */
1394 address = RTC_BASE_ADDRESS + SYSTEM_SLEEP_ADDRESS;
1395 status = ath6kl_bmi_reg_write(ar, address, sleep);
1396 if (status)
1397 return status;
1398
1399 address = MBOX_BASE_ADDRESS + LOCAL_SCRATCH_ADDRESS;
1400 param = options | 0x20;
1401 status = ath6kl_bmi_reg_write(ar, address, param);
1402 if (status)
1403 return status;
1404
1405 /* Configure GPIO AR6003 UART */
1406 param = CONFIG_AR600x_DEBUG_UART_TX_PIN;
1407 status = ath6kl_bmi_write(ar,
1408 ath6kl_get_hi_item_addr(ar,
1409 HI_ITEM(hi_dbg_uart_txpin)),
1410 (u8 *)&param, 4);
1411
1412 return status;
1413}
1414
1415static int ath6kl_init_hw_params(struct ath6kl *ar)
1416{
1417 switch (ar->version.target_ver) {
1418 case AR6003_REV2_VERSION:
1419 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS;
1420 ar->hw.app_load_addr = AR6003_REV2_APP_LOAD_ADDRESS;
1421 ar->hw.board_ext_data_addr = AR6003_REV2_BOARD_EXT_DATA_ADDRESS;
1422 ar->hw.reserved_ram_size = AR6003_REV2_RAM_RESERVE_SIZE;
1423 break;
1424 case AR6003_REV3_VERSION:
1425 ar->hw.dataset_patch_addr = AR6003_REV3_DATASET_PATCH_ADDRESS;
1426 ar->hw.app_load_addr = 0x1234;
1427 ar->hw.board_ext_data_addr = AR6003_REV3_BOARD_EXT_DATA_ADDRESS;
1428 ar->hw.reserved_ram_size = AR6003_REV3_RAM_RESERVE_SIZE;
1429 break;
1430 case AR6004_REV1_VERSION:
1431 ar->hw.dataset_patch_addr = AR6003_REV2_DATASET_PATCH_ADDRESS;
1432 ar->hw.app_load_addr = AR6003_REV3_APP_LOAD_ADDRESS;
1433 ar->hw.board_ext_data_addr = AR6004_REV1_BOARD_EXT_DATA_ADDRESS;
1434 ar->hw.reserved_ram_size = AR6004_REV1_RAM_RESERVE_SIZE;
1435 break;
1436 default:
1437 ath6kl_err("Unsupported hardware version: 0x%x\n",
1438 ar->version.target_ver);
1439 return -EINVAL;
1440 }
1441
1442 ath6kl_dbg(ATH6KL_DBG_BOOT,
1443 "target_ver 0x%x target_type 0x%x dataset_patch 0x%x app_load_addr 0x%x\n",
1444 ar->version.target_ver, ar->target_type,
1445 ar->hw.dataset_patch_addr, ar->hw.app_load_addr);
1446 ath6kl_dbg(ATH6KL_DBG_BOOT,
1447 "app_start_override_addr 0x%x board_ext_data_addr 0x%x reserved_ram_size 0x%x",
1448 ar->hw.app_start_override_addr, ar->hw.board_ext_data_addr,
1449 ar->hw.reserved_ram_size);
1450
1451 return 0;
1452}
1453
1454static int ath6kl_init(struct net_device *dev)
1455{
1456 struct ath6kl *ar = ath6kl_priv(dev);
1457 int status = 0;
1458 s32 timeleft;
1459
1460 if (!ar)
1461 return -EIO;
1462
1463 /* Do we need to finish the BMI phase */
1464 if (ath6kl_bmi_done(ar)) {
1465 status = -EIO;
1466 goto ath6kl_init_done;
1467 }
1468
1469 /* Indicate that WMI is enabled (although not ready yet) */
1470 set_bit(WMI_ENABLED, &ar->flag);
1471 ar->wmi = ath6kl_wmi_init(ar);
1472 if (!ar->wmi) {
1473 ath6kl_err("failed to initialize wmi\n");
1474 status = -EIO;
1475 goto ath6kl_init_done;
1476 }
1477
1478 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);
1479
1480 /*
1481 * The reason we have to wait for the target here is that the
1482 * driver layer has to init BMI in order to set the host block
1483 * size.
1484 */
1485 if (ath6kl_htc_wait_target(ar->htc_target)) {
1486 status = -EIO;
1487 goto err_node_cleanup;
1488 }
1489
1490 if (ath6kl_init_service_ep(ar)) {
1491 status = -EIO;
1492 goto err_cleanup_scatter;
1493 }
1494
1495 /* setup access class priority mappings */
1496 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */
1497 ar->ac_stream_pri_map[WMM_AC_BE] = 1;
1498 ar->ac_stream_pri_map[WMM_AC_VI] = 2;
1499 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */
1500
1501 /* give our connected endpoints some buffers */
1502 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);
1503 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);
1504
1505 /* allocate some buffers that handle larger AMSDU frames */
1506 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);
1507
1508 /* setup credit distribution */
1509 ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info);
1510
1511 ath6kl_cookie_init(ar);
1512
1513 /* start HTC */
1514 status = ath6kl_htc_start(ar->htc_target);
1515
1516 if (status) {
1517 ath6kl_cookie_cleanup(ar);
1518 goto err_rxbuf_cleanup;
1519 }
1520
1521 /* Wait for Wmi event to be ready */
1522 timeleft = wait_event_interruptible_timeout(ar->event_wq,
1523 test_bit(WMI_READY,
1524 &ar->flag),
1525 WMI_TIMEOUT);
1526
1527 ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
1528
1529 if (ar->version.abi_ver != ATH6KL_ABI_VERSION) {
1530 ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n",
1531 ATH6KL_ABI_VERSION, ar->version.abi_ver);
1532 status = -EIO;
1533 goto err_htc_stop;
1534 }
1535
1536 if (!timeleft || signal_pending(current)) {
1537 ath6kl_err("wmi is not ready or wait was interrupted\n");
1538 status = -EIO;
1539 goto err_htc_stop;
1540 }
1541
1542 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
1543
1544 /* communicate the wmi protocol verision to the target */
1545 if ((ath6kl_set_host_app_area(ar)) != 0)
1546 ath6kl_err("unable to set the host app area\n");
1547
1548 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |
1549 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;
1550
1551 ar->wdev->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
1552
1553 status = ath6kl_target_config_wlan_params(ar);
1554 if (!status)
1555 goto ath6kl_init_done;
1556
1557err_htc_stop:
1558 ath6kl_htc_stop(ar->htc_target);
1559err_rxbuf_cleanup:
1560 ath6kl_htc_flush_rx_buf(ar->htc_target);
1561 ath6kl_cleanup_amsdu_rxbufs(ar);
1562err_cleanup_scatter:
1563 ath6kl_hif_cleanup_scatter(ar);
1564err_node_cleanup:
1565 ath6kl_wmi_shutdown(ar->wmi);
1566 clear_bit(WMI_ENABLED, &ar->flag);
1567 ar->wmi = NULL;
1568
1569ath6kl_init_done:
1570 return status;
1571}
1572
1573int ath6kl_core_init(struct ath6kl *ar)
1574{
1575 int ret = 0;
1576 struct ath6kl_bmi_target_info targ_info;
1577
1578 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");
1579 if (!ar->ath6kl_wq)
1580 return -ENOMEM;
1581
1582 ret = ath6kl_bmi_init(ar);
1583 if (ret)
1584 goto err_wq;
1585
1586 ret = ath6kl_bmi_get_target_info(ar, &targ_info);
1587 if (ret)
1588 goto err_bmi_cleanup;
1589
1590 ar->version.target_ver = le32_to_cpu(targ_info.version);
1591 ar->target_type = le32_to_cpu(targ_info.type);
1592 ar->wdev->wiphy->hw_version = le32_to_cpu(targ_info.version);
1593
1594 ret = ath6kl_init_hw_params(ar);
1595 if (ret)
1596 goto err_bmi_cleanup;
1597
1598 ret = ath6kl_configure_target(ar);
1599 if (ret)
1600 goto err_bmi_cleanup;
1601
1602 ar->htc_target = ath6kl_htc_create(ar);
1603
1604 if (!ar->htc_target) {
1605 ret = -ENOMEM;
1606 goto err_bmi_cleanup;
1607 }
1608
1609 ar->aggr_cntxt = aggr_init(ar->net_dev);
1610 if (!ar->aggr_cntxt) {
1611 ath6kl_err("failed to initialize aggr\n");
1612 ret = -ENOMEM;
1613 goto err_htc_cleanup;
1614 }
1615
1616 ret = ath6kl_fetch_firmwares(ar);
1617 if (ret)
1618 goto err_htc_cleanup;
1619
1620 ret = ath6kl_init_upload(ar);
1621 if (ret)
1622 goto err_htc_cleanup;
1623
1624 ret = ath6kl_init(ar->net_dev);
1625 if (ret)
1626 goto err_htc_cleanup;
1627
1628 /* This runs the init function if registered */
1629 ret = register_netdev(ar->net_dev);
1630 if (ret) {
1631 ath6kl_err("register_netdev failed\n");
1632 ath6kl_destroy(ar->net_dev, 0);
1633 return ret;
1634 }
1635
1636 set_bit(NETDEV_REGISTERED, &ar->flag);
1637
1638 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",
1639 __func__, ar->net_dev->name, ar->net_dev, ar);
1640
1641 return ret;
1642
1643err_htc_cleanup:
1644 ath6kl_htc_cleanup(ar->htc_target);
1645err_bmi_cleanup:
1646 ath6kl_bmi_cleanup(ar);
1647err_wq:
1648 destroy_workqueue(ar->ath6kl_wq);
1649 return ret;
1650}
1651
1652void ath6kl_stop_txrx(struct ath6kl *ar)
1653{
1654 struct net_device *ndev = ar->net_dev;
1655
1656 if (!ndev)
1657 return;
1658
1659 set_bit(DESTROY_IN_PROGRESS, &ar->flag);
1660
1661 if (down_interruptible(&ar->sem)) {
1662 ath6kl_err("down_interruptible failed\n");
1663 return;
1664 }
1665
1666 if (ar->wlan_pwr_state != WLAN_POWER_STATE_CUT_PWR)
1667 ath6kl_stop_endpoint(ndev, false, true);
1668
1669 clear_bit(WLAN_ENABLED, &ar->flag);
1670}
1671
1672/*
1673 * We need to differentiate between the surprise and planned removal of the
1674 * device because of the following consideration:
1675 *
1676 * - In case of surprise removal, the hcd already frees up the pending
1677 * for the device and hence there is no need to unregister the function
1678 * driver inorder to get these requests. For planned removal, the function
1679 * driver has to explicitly unregister itself to have the hcd return all the
1680 * pending requests before the data structures for the devices are freed up.
1681 * Note that as per the current implementation, the function driver will
1682 * end up releasing all the devices since there is no API to selectively
1683 * release a particular device.
1684 *
1685 * - Certain commands issued to the target can be skipped for surprise
1686 * removal since they will anyway not go through.
1687 */
1688void ath6kl_destroy(struct net_device *dev, unsigned int unregister)
1689{
1690 struct ath6kl *ar;
1691
1692 if (!dev || !ath6kl_priv(dev)) {
1693 ath6kl_err("failed to get device structure\n");
1694 return;
1695 }
1696
1697 ar = ath6kl_priv(dev);
1698
1699 destroy_workqueue(ar->ath6kl_wq);
1700
1701 if (ar->htc_target)
1702 ath6kl_htc_cleanup(ar->htc_target);
1703
1704 aggr_module_destroy(ar->aggr_cntxt);
1705
1706 ath6kl_cookie_cleanup(ar);
1707
1708 ath6kl_cleanup_amsdu_rxbufs(ar);
1709
1710 ath6kl_bmi_cleanup(ar);
1711
1712 ath6kl_debug_cleanup(ar);
1713
1714 if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) {
1715 unregister_netdev(dev);
1716 clear_bit(NETDEV_REGISTERED, &ar->flag);
1717 }
1718
1719 free_netdev(dev);
1720
1721 kfree(ar->fw_board);
1722 kfree(ar->fw_otp);
1723 kfree(ar->fw);
1724 kfree(ar->fw_patch);
1725
1726 ath6kl_cfg80211_deinit(ar);
1727}
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-10 01:29:13 -0400