1 /*
2 * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
3 *
4 * Copyright (c) 2010, ST-Ericsson
5 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
6 *
7 * Based on:
8 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9 * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
10 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
11 *
12 * Based on:
13 * - the islsm (softmac prism54) driver, which is:
14 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
15 * - stlc45xx driver
16 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
17 *
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License version 2 as
20 * published by the Free Software Foundation.
21 */
22
23 #include <linux/module.h>
24 #include <linux/firmware.h>
25 #include <linux/etherdevice.h>
26 #include <linux/vmalloc.h>
27 #include <linux/random.h>
28 #include <linux/sched.h>
29 #include <net/mac80211.h>
30
31 #include "cw1200.h"
32 #include "txrx.h"
33 #include "hwbus.h"
34 #include "fwio.h"
35 #include "hwio.h"
36 #include "bh.h"
37 #include "sta.h"
38 #include "scan.h"
39 #include "debug.h"
40 #include "pm.h"
41
42 MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
43 MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
44 MODULE_LICENSE("GPL");
45 MODULE_ALIAS("cw1200_core");
46
47 /* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
48 static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
49 module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO);
50 MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
51
52 static char *cw1200_sdd_path;
53 module_param(cw1200_sdd_path, charp, 0644);
54 MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
55 static int cw1200_refclk;
56 module_param(cw1200_refclk, int, 0644);
57 MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
58
59 int cw1200_power_mode = wsm_power_mode_quiescent;
60 module_param(cw1200_power_mode, int, 0644);
61 MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)");
62
63 #define RATETAB_ENT(_rate, _rateid, _flags) \
64 { \
65 .bitrate = (_rate), \
66 .hw_value = (_rateid), \
67 .flags = (_flags), \
68 }
69
70 static struct ieee80211_rate cw1200_rates[] = {
71 RATETAB_ENT(10, 0, 0),
72 RATETAB_ENT(20, 1, 0),
73 RATETAB_ENT(55, 2, 0),
74 RATETAB_ENT(110, 3, 0),
75 RATETAB_ENT(60, 6, 0),
76 RATETAB_ENT(90, 7, 0),
77 RATETAB_ENT(120, 8, 0),
78 RATETAB_ENT(180, 9, 0),
79 RATETAB_ENT(240, 10, 0),
80 RATETAB_ENT(360, 11, 0),
81 RATETAB_ENT(480, 12, 0),
82 RATETAB_ENT(540, 13, 0),
83 };
84
85 static struct ieee80211_rate cw1200_mcs_rates[] = {
86 RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS),
87 RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
88 RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
89 RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
90 RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
91 RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
92 RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
93 RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
94 };
95
96 #define cw1200_a_rates (cw1200_rates + 4)
97 #define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4)
98 #define cw1200_g_rates (cw1200_rates + 0)
99 #define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates))
100 #define cw1200_n_rates (cw1200_mcs_rates)
101 #define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates))
102
103
104 #define CHAN2G(_channel, _freq, _flags) { \
105 .band = IEEE80211_BAND_2GHZ, \
106 .center_freq = (_freq), \
107 .hw_value = (_channel), \
108 .flags = (_flags), \
109 .max_antenna_gain = 0, \
110 .max_power = 30, \
111 }
112
113 #define CHAN5G(_channel, _flags) { \
114 .band = IEEE80211_BAND_5GHZ, \
115 .center_freq = 5000 + (5 * (_channel)), \
116 .hw_value = (_channel), \
117 .flags = (_flags), \
118 .max_antenna_gain = 0, \
119 .max_power = 30, \
120 }
121
122 static struct ieee80211_channel cw1200_2ghz_chantable[] = {
123 CHAN2G(1, 2412, 0),
124 CHAN2G(2, 2417, 0),
125 CHAN2G(3, 2422, 0),
126 CHAN2G(4, 2427, 0),
127 CHAN2G(5, 2432, 0),
128 CHAN2G(6, 2437, 0),
129 CHAN2G(7, 2442, 0),
130 CHAN2G(8, 2447, 0),
131 CHAN2G(9, 2452, 0),
132 CHAN2G(10, 2457, 0),
133 CHAN2G(11, 2462, 0),
134 CHAN2G(12, 2467, 0),
135 CHAN2G(13, 2472, 0),
136 CHAN2G(14, 2484, 0),
137 };
138
139 static struct ieee80211_channel cw1200_5ghz_chantable[] = {
140 CHAN5G(34, 0), CHAN5G(36, 0),
141 CHAN5G(38, 0), CHAN5G(40, 0),
142 CHAN5G(42, 0), CHAN5G(44, 0),
143 CHAN5G(46, 0), CHAN5G(48, 0),
144 CHAN5G(52, 0), CHAN5G(56, 0),
145 CHAN5G(60, 0), CHAN5G(64, 0),
146 CHAN5G(100, 0), CHAN5G(104, 0),
147 CHAN5G(108, 0), CHAN5G(112, 0),
148 CHAN5G(116, 0), CHAN5G(120, 0),
149 CHAN5G(124, 0), CHAN5G(128, 0),
150 CHAN5G(132, 0), CHAN5G(136, 0),
151 CHAN5G(140, 0), CHAN5G(149, 0),
152 CHAN5G(153, 0), CHAN5G(157, 0),
153 CHAN5G(161, 0), CHAN5G(165, 0),
154 CHAN5G(184, 0), CHAN5G(188, 0),
155 CHAN5G(192, 0), CHAN5G(196, 0),
156 CHAN5G(200, 0), CHAN5G(204, 0),
157 CHAN5G(208, 0), CHAN5G(212, 0),
158 CHAN5G(216, 0),
159 };
160
161 static struct ieee80211_supported_band cw1200_band_2ghz = {
162 .channels = cw1200_2ghz_chantable,
163 .n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
164 .bitrates = cw1200_g_rates,
165 .n_bitrates = cw1200_g_rates_size,
166 .ht_cap = {
167 .cap = IEEE80211_HT_CAP_GRN_FLD |
168 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
169 IEEE80211_HT_CAP_MAX_AMSDU,
170 .ht_supported = 1,
171 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
172 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
173 .mcs = {
174 .rx_mask[0] = 0xFF,
175 .rx_highest = __cpu_to_le16(0x41),
176 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
177 },
178 },
179 };
180
181 static struct ieee80211_supported_band cw1200_band_5ghz = {
182 .channels = cw1200_5ghz_chantable,
183 .n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
184 .bitrates = cw1200_a_rates,
185 .n_bitrates = cw1200_a_rates_size,
186 .ht_cap = {
187 .cap = IEEE80211_HT_CAP_GRN_FLD |
188 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
189 IEEE80211_HT_CAP_MAX_AMSDU,
190 .ht_supported = 1,
191 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
192 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
193 .mcs = {
194 .rx_mask[0] = 0xFF,
195 .rx_highest = __cpu_to_le16(0x41),
196 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
197 },
198 },
199 };
200
201 static const unsigned long cw1200_ttl[] = {
202 1 * HZ, /* VO */
203 2 * HZ, /* VI */
204 5 * HZ, /* BE */
205 10 * HZ /* BK */
206 };
207
208 static const struct ieee80211_ops cw1200_ops = {
209 .start = cw1200_start,
210 .stop = cw1200_stop,
211 .add_interface = cw1200_add_interface,
212 .remove_interface = cw1200_remove_interface,
213 .change_interface = cw1200_change_interface,
214 .tx = cw1200_tx,
215 .hw_scan = cw1200_hw_scan,
216 .set_tim = cw1200_set_tim,
217 .sta_notify = cw1200_sta_notify,
218 .sta_add = cw1200_sta_add,
219 .sta_remove = cw1200_sta_remove,
220 .set_key = cw1200_set_key,
221 .set_rts_threshold = cw1200_set_rts_threshold,
222 .config = cw1200_config,
223 .bss_info_changed = cw1200_bss_info_changed,
224 .prepare_multicast = cw1200_prepare_multicast,
225 .configure_filter = cw1200_configure_filter,
226 .conf_tx = cw1200_conf_tx,
227 .get_stats = cw1200_get_stats,
228 .ampdu_action = cw1200_ampdu_action,
229 .flush = cw1200_flush,
230 #ifdef CONFIG_PM
231 .suspend = cw1200_wow_suspend,
232 .resume = cw1200_wow_resume,
233 #endif
234 /* Intentionally not offloaded: */
235 /*.channel_switch = cw1200_channel_switch, */
236 /*.remain_on_channel = cw1200_remain_on_channel, */
237 /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
238 };
239
240 static int cw1200_ba_rx_tids = -1;
241 static int cw1200_ba_tx_tids = -1;
242 module_param(cw1200_ba_rx_tids, int, 0644);
243 module_param(cw1200_ba_tx_tids, int, 0644);
244 MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
245 MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
246
247 #ifdef CONFIG_PM
248 static const struct wiphy_wowlan_support cw1200_wowlan_support = {
249 /* Support only for limited wowlan functionalities */
250 .flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
251 };
252 #endif
253
254
cw1200_init_common(const u8 * macaddr,const bool have_5ghz)255 static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
256 const bool have_5ghz)
257 {
258 int i, band;
259 struct ieee80211_hw *hw;
260 struct cw1200_common *priv;
261
262 hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
263 if (!hw)
264 return NULL;
265
266 priv = hw->priv;
267 priv->hw = hw;
268 priv->hw_type = -1;
269 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
270 priv->rates = cw1200_rates; /* TODO: fetch from FW */
271 priv->mcs_rates = cw1200_n_rates;
272 if (cw1200_ba_rx_tids != -1)
273 priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
274 else
275 priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
276 if (cw1200_ba_tx_tids != -1)
277 priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
278 else
279 priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
280
281 ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
282 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
283 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
284 ieee80211_hw_set(hw, CONNECTION_MONITOR);
285 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
286 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
287 ieee80211_hw_set(hw, SIGNAL_DBM);
288 ieee80211_hw_set(hw, SUPPORTS_PS);
289
290 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
291 BIT(NL80211_IFTYPE_ADHOC) |
292 BIT(NL80211_IFTYPE_AP) |
293 BIT(NL80211_IFTYPE_MESH_POINT) |
294 BIT(NL80211_IFTYPE_P2P_CLIENT) |
295 BIT(NL80211_IFTYPE_P2P_GO);
296
297 #ifdef CONFIG_PM
298 hw->wiphy->wowlan = &cw1200_wowlan_support;
299 #endif
300
301 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
302
303 hw->queues = 4;
304
305 priv->rts_threshold = -1;
306
307 hw->max_rates = 8;
308 hw->max_rate_tries = 15;
309 hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
310 8; /* TKIP IV */
311
312 hw->sta_data_size = sizeof(struct cw1200_sta_priv);
313
314 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
315 if (have_5ghz)
316 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;
317
318 /* Channel params have to be cleared before registering wiphy again */
319 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
320 struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
321 if (!sband)
322 continue;
323 for (i = 0; i < sband->n_channels; i++) {
324 sband->channels[i].flags = 0;
325 sband->channels[i].max_antenna_gain = 0;
326 sband->channels[i].max_power = 30;
327 }
328 }
329
330 hw->wiphy->max_scan_ssids = 2;
331 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
332
333 if (macaddr)
334 SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
335 else
336 SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
337
338 /* Fix up mac address if necessary */
339 if (hw->wiphy->perm_addr[3] == 0 &&
340 hw->wiphy->perm_addr[4] == 0 &&
341 hw->wiphy->perm_addr[5] == 0) {
342 get_random_bytes(&hw->wiphy->perm_addr[3], 3);
343 }
344
345 mutex_init(&priv->wsm_cmd_mux);
346 mutex_init(&priv->conf_mutex);
347 priv->workqueue = create_singlethread_workqueue("cw1200_wq");
348 if (!priv->workqueue) {
349 ieee80211_free_hw(hw);
350 return NULL;
351 }
352
353 sema_init(&priv->scan.lock, 1);
354 INIT_WORK(&priv->scan.work, cw1200_scan_work);
355 INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
356 INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
357 INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
358 cw1200_clear_recent_scan_work);
359 INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
360 INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
361 INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
362 INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
363 INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
364 spin_lock_init(&priv->event_queue_lock);
365 INIT_LIST_HEAD(&priv->event_queue);
366 INIT_WORK(&priv->event_handler, cw1200_event_handler);
367 INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
368 INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
369 spin_lock_init(&priv->bss_loss_lock);
370 spin_lock_init(&priv->ps_state_lock);
371 INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
372 INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
373 INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
374 INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
375 INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
376 INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
377 INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
378 INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
379 INIT_WORK(&priv->set_beacon_wakeup_period_work,
380 cw1200_set_beacon_wakeup_period_work);
381 setup_timer(&priv->mcast_timeout, cw1200_mcast_timeout,
382 (unsigned long)priv);
383
384 if (cw1200_queue_stats_init(&priv->tx_queue_stats,
385 CW1200_LINK_ID_MAX,
386 cw1200_skb_dtor,
387 priv)) {
388 destroy_workqueue(priv->workqueue);
389 ieee80211_free_hw(hw);
390 return NULL;
391 }
392
393 for (i = 0; i < 4; ++i) {
394 if (cw1200_queue_init(&priv->tx_queue[i],
395 &priv->tx_queue_stats, i, 16,
396 cw1200_ttl[i])) {
397 for (; i > 0; i--)
398 cw1200_queue_deinit(&priv->tx_queue[i - 1]);
399 cw1200_queue_stats_deinit(&priv->tx_queue_stats);
400 destroy_workqueue(priv->workqueue);
401 ieee80211_free_hw(hw);
402 return NULL;
403 }
404 }
405
406 init_waitqueue_head(&priv->channel_switch_done);
407 init_waitqueue_head(&priv->wsm_cmd_wq);
408 init_waitqueue_head(&priv->wsm_startup_done);
409 init_waitqueue_head(&priv->ps_mode_switch_done);
410 wsm_buf_init(&priv->wsm_cmd_buf);
411 spin_lock_init(&priv->wsm_cmd.lock);
412 priv->wsm_cmd.done = 1;
413 tx_policy_init(priv);
414
415 return hw;
416 }
417
cw1200_register_common(struct ieee80211_hw * dev)418 static int cw1200_register_common(struct ieee80211_hw *dev)
419 {
420 struct cw1200_common *priv = dev->priv;
421 int err;
422
423 #ifdef CONFIG_PM
424 err = cw1200_pm_init(&priv->pm_state, priv);
425 if (err) {
426 pr_err("Cannot init PM. (%d).\n",
427 err);
428 return err;
429 }
430 #endif
431
432 err = ieee80211_register_hw(dev);
433 if (err) {
434 pr_err("Cannot register device (%d).\n",
435 err);
436 #ifdef CONFIG_PM
437 cw1200_pm_deinit(&priv->pm_state);
438 #endif
439 return err;
440 }
441
442 cw1200_debug_init(priv);
443
444 pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
445 return 0;
446 }
447
cw1200_free_common(struct ieee80211_hw * dev)448 static void cw1200_free_common(struct ieee80211_hw *dev)
449 {
450 ieee80211_free_hw(dev);
451 }
452
cw1200_unregister_common(struct ieee80211_hw * dev)453 static void cw1200_unregister_common(struct ieee80211_hw *dev)
454 {
455 struct cw1200_common *priv = dev->priv;
456 int i;
457
458 ieee80211_unregister_hw(dev);
459
460 del_timer_sync(&priv->mcast_timeout);
461 cw1200_unregister_bh(priv);
462
463 cw1200_debug_release(priv);
464
465 mutex_destroy(&priv->conf_mutex);
466
467 wsm_buf_deinit(&priv->wsm_cmd_buf);
468
469 destroy_workqueue(priv->workqueue);
470 priv->workqueue = NULL;
471
472 if (priv->sdd) {
473 release_firmware(priv->sdd);
474 priv->sdd = NULL;
475 }
476
477 for (i = 0; i < 4; ++i)
478 cw1200_queue_deinit(&priv->tx_queue[i]);
479
480 cw1200_queue_stats_deinit(&priv->tx_queue_stats);
481 #ifdef CONFIG_PM
482 cw1200_pm_deinit(&priv->pm_state);
483 #endif
484 }
485
486 /* Clock is in KHz */
cw1200_dpll_from_clk(u16 clk_khz)487 u32 cw1200_dpll_from_clk(u16 clk_khz)
488 {
489 switch (clk_khz) {
490 case 0x32C8: /* 13000 KHz */
491 return 0x1D89D241;
492 case 0x3E80: /* 16000 KHz */
493 return 0x000001E1;
494 case 0x41A0: /* 16800 KHz */
495 return 0x124931C1;
496 case 0x4B00: /* 19200 KHz */
497 return 0x00000191;
498 case 0x5DC0: /* 24000 KHz */
499 return 0x00000141;
500 case 0x6590: /* 26000 KHz */
501 return 0x0EC4F121;
502 case 0x8340: /* 33600 KHz */
503 return 0x092490E1;
504 case 0x9600: /* 38400 KHz */
505 return 0x100010C1;
506 case 0x9C40: /* 40000 KHz */
507 return 0x000000C1;
508 case 0xBB80: /* 48000 KHz */
509 return 0x000000A1;
510 case 0xCB20: /* 52000 KHz */
511 return 0x07627091;
512 default:
513 pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n",
514 clk_khz);
515 return 0x0EC4F121;
516 }
517 }
518
cw1200_core_probe(const struct hwbus_ops * hwbus_ops,struct hwbus_priv * hwbus,struct device * pdev,struct cw1200_common ** core,int ref_clk,const u8 * macaddr,const char * sdd_path,bool have_5ghz)519 int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
520 struct hwbus_priv *hwbus,
521 struct device *pdev,
522 struct cw1200_common **core,
523 int ref_clk, const u8 *macaddr,
524 const char *sdd_path, bool have_5ghz)
525 {
526 int err = -EINVAL;
527 struct ieee80211_hw *dev;
528 struct cw1200_common *priv;
529 struct wsm_operational_mode mode = {
530 .power_mode = cw1200_power_mode,
531 .disable_more_flag_usage = true,
532 };
533
534 dev = cw1200_init_common(macaddr, have_5ghz);
535 if (!dev)
536 goto err;
537
538 priv = dev->priv;
539 priv->hw_refclk = ref_clk;
540 if (cw1200_refclk)
541 priv->hw_refclk = cw1200_refclk;
542
543 priv->sdd_path = (char *)sdd_path;
544 if (cw1200_sdd_path)
545 priv->sdd_path = cw1200_sdd_path;
546
547 priv->hwbus_ops = hwbus_ops;
548 priv->hwbus_priv = hwbus;
549 priv->pdev = pdev;
550 SET_IEEE80211_DEV(priv->hw, pdev);
551
552 /* Pass struct cw1200_common back up */
553 *core = priv;
554
555 err = cw1200_register_bh(priv);
556 if (err)
557 goto err1;
558
559 err = cw1200_load_firmware(priv);
560 if (err)
561 goto err2;
562
563 if (wait_event_interruptible_timeout(priv->wsm_startup_done,
564 priv->firmware_ready,
565 3*HZ) <= 0) {
566 /* TODO: Need to find how to reset device
567 in QUEUE mode properly.
568 */
569 pr_err("Timeout waiting on device startup\n");
570 err = -ETIMEDOUT;
571 goto err2;
572 }
573
574 /* Set low-power mode. */
575 wsm_set_operational_mode(priv, &mode);
576
577 /* Enable multi-TX confirmation */
578 wsm_use_multi_tx_conf(priv, true);
579
580 err = cw1200_register_common(dev);
581 if (err)
582 goto err2;
583
584 return err;
585
586 err2:
587 cw1200_unregister_bh(priv);
588 err1:
589 cw1200_free_common(dev);
590 err:
591 *core = NULL;
592 return err;
593 }
594 EXPORT_SYMBOL_GPL(cw1200_core_probe);
595
cw1200_core_release(struct cw1200_common * self)596 void cw1200_core_release(struct cw1200_common *self)
597 {
598 /* Disable device interrupts */
599 self->hwbus_ops->lock(self->hwbus_priv);
600 __cw1200_irq_enable(self, 0);
601 self->hwbus_ops->unlock(self->hwbus_priv);
602
603 /* And then clean up */
604 cw1200_unregister_common(self->hw);
605 cw1200_free_common(self->hw);
606 return;
607 }
608 EXPORT_SYMBOL_GPL(cw1200_core_release);
609