1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
4 *
5 * Copyright (c) 2010, ST-Ericsson
6 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
7 *
8 * Based on:
9 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
10 * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
11 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
12 *
13 * Based on:
14 * - the islsm (softmac prism54) driver, which is:
15 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
16 * - stlc45xx driver
17 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
18 */
19
20 #include <linux/module.h>
21 #include <linux/firmware.h>
22 #include <linux/etherdevice.h>
23 #include <linux/vmalloc.h>
24 #include <linux/random.h>
25 #include <linux/sched.h>
26 #include <net/mac80211.h>
27
28 #include "cw1200.h"
29 #include "txrx.h"
30 #include "hwbus.h"
31 #include "fwio.h"
32 #include "hwio.h"
33 #include "bh.h"
34 #include "sta.h"
35 #include "scan.h"
36 #include "debug.h"
37 #include "pm.h"
38
39 MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
40 MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
41 MODULE_LICENSE("GPL");
42 MODULE_ALIAS("cw1200_core");
43
44 /* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
45 static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
46 module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, 0444);
47 MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
48
49 static char *cw1200_sdd_path;
50 module_param(cw1200_sdd_path, charp, 0644);
51 MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
52 static int cw1200_refclk;
53 module_param(cw1200_refclk, int, 0644);
54 MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
55
56 int cw1200_power_mode = wsm_power_mode_quiescent;
57 module_param(cw1200_power_mode, int, 0644);
58 MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)");
59
60 #define RATETAB_ENT(_rate, _rateid, _flags) \
61 { \
62 .bitrate = (_rate), \
63 .hw_value = (_rateid), \
64 .flags = (_flags), \
65 }
66
67 static struct ieee80211_rate cw1200_rates[] = {
68 RATETAB_ENT(10, 0, 0),
69 RATETAB_ENT(20, 1, 0),
70 RATETAB_ENT(55, 2, 0),
71 RATETAB_ENT(110, 3, 0),
72 RATETAB_ENT(60, 6, 0),
73 RATETAB_ENT(90, 7, 0),
74 RATETAB_ENT(120, 8, 0),
75 RATETAB_ENT(180, 9, 0),
76 RATETAB_ENT(240, 10, 0),
77 RATETAB_ENT(360, 11, 0),
78 RATETAB_ENT(480, 12, 0),
79 RATETAB_ENT(540, 13, 0),
80 };
81
82 static struct ieee80211_rate cw1200_mcs_rates[] = {
83 RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS),
84 RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
85 RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
86 RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
87 RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
88 RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
89 RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
90 RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
91 };
92
93 #define cw1200_a_rates (cw1200_rates + 4)
94 #define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4)
95 #define cw1200_g_rates (cw1200_rates + 0)
96 #define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates))
97 #define cw1200_n_rates (cw1200_mcs_rates)
98 #define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates))
99
100
101 #define CHAN2G(_channel, _freq, _flags) { \
102 .band = NL80211_BAND_2GHZ, \
103 .center_freq = (_freq), \
104 .hw_value = (_channel), \
105 .flags = (_flags), \
106 .max_antenna_gain = 0, \
107 .max_power = 30, \
108 }
109
110 #define CHAN5G(_channel, _flags) { \
111 .band = NL80211_BAND_5GHZ, \
112 .center_freq = 5000 + (5 * (_channel)), \
113 .hw_value = (_channel), \
114 .flags = (_flags), \
115 .max_antenna_gain = 0, \
116 .max_power = 30, \
117 }
118
119 static struct ieee80211_channel cw1200_2ghz_chantable[] = {
120 CHAN2G(1, 2412, 0),
121 CHAN2G(2, 2417, 0),
122 CHAN2G(3, 2422, 0),
123 CHAN2G(4, 2427, 0),
124 CHAN2G(5, 2432, 0),
125 CHAN2G(6, 2437, 0),
126 CHAN2G(7, 2442, 0),
127 CHAN2G(8, 2447, 0),
128 CHAN2G(9, 2452, 0),
129 CHAN2G(10, 2457, 0),
130 CHAN2G(11, 2462, 0),
131 CHAN2G(12, 2467, 0),
132 CHAN2G(13, 2472, 0),
133 CHAN2G(14, 2484, 0),
134 };
135
136 static struct ieee80211_channel cw1200_5ghz_chantable[] = {
137 CHAN5G(34, 0), CHAN5G(36, 0),
138 CHAN5G(38, 0), CHAN5G(40, 0),
139 CHAN5G(42, 0), CHAN5G(44, 0),
140 CHAN5G(46, 0), CHAN5G(48, 0),
141 CHAN5G(52, 0), CHAN5G(56, 0),
142 CHAN5G(60, 0), CHAN5G(64, 0),
143 CHAN5G(100, 0), CHAN5G(104, 0),
144 CHAN5G(108, 0), CHAN5G(112, 0),
145 CHAN5G(116, 0), CHAN5G(120, 0),
146 CHAN5G(124, 0), CHAN5G(128, 0),
147 CHAN5G(132, 0), CHAN5G(136, 0),
148 CHAN5G(140, 0), CHAN5G(149, 0),
149 CHAN5G(153, 0), CHAN5G(157, 0),
150 CHAN5G(161, 0), CHAN5G(165, 0),
151 CHAN5G(184, 0), CHAN5G(188, 0),
152 CHAN5G(192, 0), CHAN5G(196, 0),
153 CHAN5G(200, 0), CHAN5G(204, 0),
154 CHAN5G(208, 0), CHAN5G(212, 0),
155 CHAN5G(216, 0),
156 };
157
158 static struct ieee80211_supported_band cw1200_band_2ghz = {
159 .channels = cw1200_2ghz_chantable,
160 .n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
161 .bitrates = cw1200_g_rates,
162 .n_bitrates = cw1200_g_rates_size,
163 .ht_cap = {
164 .cap = IEEE80211_HT_CAP_GRN_FLD |
165 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
166 IEEE80211_HT_CAP_MAX_AMSDU,
167 .ht_supported = 1,
168 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
169 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
170 .mcs = {
171 .rx_mask[0] = 0xFF,
172 .rx_highest = __cpu_to_le16(0x41),
173 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
174 },
175 },
176 };
177
178 static struct ieee80211_supported_band cw1200_band_5ghz = {
179 .channels = cw1200_5ghz_chantable,
180 .n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
181 .bitrates = cw1200_a_rates,
182 .n_bitrates = cw1200_a_rates_size,
183 .ht_cap = {
184 .cap = IEEE80211_HT_CAP_GRN_FLD |
185 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
186 IEEE80211_HT_CAP_MAX_AMSDU,
187 .ht_supported = 1,
188 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
189 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
190 .mcs = {
191 .rx_mask[0] = 0xFF,
192 .rx_highest = __cpu_to_le16(0x41),
193 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
194 },
195 },
196 };
197
198 static const unsigned long cw1200_ttl[] = {
199 1 * HZ, /* VO */
200 2 * HZ, /* VI */
201 5 * HZ, /* BE */
202 10 * HZ /* BK */
203 };
204
205 static const struct ieee80211_ops cw1200_ops = {
206 .start = cw1200_start,
207 .stop = cw1200_stop,
208 .add_interface = cw1200_add_interface,
209 .remove_interface = cw1200_remove_interface,
210 .change_interface = cw1200_change_interface,
211 .tx = cw1200_tx,
212 .wake_tx_queue = ieee80211_handle_wake_tx_queue,
213 .hw_scan = cw1200_hw_scan,
214 .set_tim = cw1200_set_tim,
215 .sta_notify = cw1200_sta_notify,
216 .sta_add = cw1200_sta_add,
217 .sta_remove = cw1200_sta_remove,
218 .set_key = cw1200_set_key,
219 .set_rts_threshold = cw1200_set_rts_threshold,
220 .config = cw1200_config,
221 .bss_info_changed = cw1200_bss_info_changed,
222 .prepare_multicast = cw1200_prepare_multicast,
223 .configure_filter = cw1200_configure_filter,
224 .conf_tx = cw1200_conf_tx,
225 .get_stats = cw1200_get_stats,
226 .ampdu_action = cw1200_ampdu_action,
227 .flush = cw1200_flush,
228 #ifdef CONFIG_PM
229 .suspend = cw1200_wow_suspend,
230 .resume = cw1200_wow_resume,
231 #endif
232 /* Intentionally not offloaded: */
233 /*.channel_switch = cw1200_channel_switch, */
234 /*.remain_on_channel = cw1200_remain_on_channel, */
235 /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
236 };
237
238 static int cw1200_ba_rx_tids = -1;
239 static int cw1200_ba_tx_tids = -1;
240 module_param(cw1200_ba_rx_tids, int, 0644);
241 module_param(cw1200_ba_tx_tids, int, 0644);
242 MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
243 MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
244
245 #ifdef CONFIG_PM
246 static const struct wiphy_wowlan_support cw1200_wowlan_support = {
247 /* Support only for limited wowlan functionalities */
248 .flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
249 };
250 #endif
251
252
cw1200_init_common(const u8 * macaddr,const bool have_5ghz)253 static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
254 const bool have_5ghz)
255 {
256 int i, band;
257 struct ieee80211_hw *hw;
258 struct cw1200_common *priv;
259
260 hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
261 if (!hw)
262 return NULL;
263
264 priv = hw->priv;
265 priv->hw = hw;
266 priv->hw_type = -1;
267 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
268 priv->rates = cw1200_rates; /* TODO: fetch from FW */
269 priv->mcs_rates = cw1200_n_rates;
270 if (cw1200_ba_rx_tids != -1)
271 priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
272 else
273 priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
274 if (cw1200_ba_tx_tids != -1)
275 priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
276 else
277 priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
278
279 ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
280 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
281 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
282 ieee80211_hw_set(hw, CONNECTION_MONITOR);
283 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
284 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
285 ieee80211_hw_set(hw, SIGNAL_DBM);
286 ieee80211_hw_set(hw, SUPPORTS_PS);
287
288 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
289 BIT(NL80211_IFTYPE_ADHOC) |
290 BIT(NL80211_IFTYPE_AP) |
291 BIT(NL80211_IFTYPE_MESH_POINT) |
292 BIT(NL80211_IFTYPE_P2P_CLIENT) |
293 BIT(NL80211_IFTYPE_P2P_GO);
294
295 #ifdef CONFIG_PM
296 hw->wiphy->wowlan = &cw1200_wowlan_support;
297 #endif
298
299 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
300
301 hw->queues = 4;
302
303 priv->rts_threshold = -1;
304
305 hw->max_rates = 8;
306 hw->max_rate_tries = 15;
307 hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
308 8; /* TKIP IV */
309
310 hw->sta_data_size = sizeof(struct cw1200_sta_priv);
311
312 hw->wiphy->bands[NL80211_BAND_2GHZ] = &cw1200_band_2ghz;
313 if (have_5ghz)
314 hw->wiphy->bands[NL80211_BAND_5GHZ] = &cw1200_band_5ghz;
315
316 /* Channel params have to be cleared before registering wiphy again */
317 for (band = 0; band < NUM_NL80211_BANDS; band++) {
318 struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
319 if (!sband)
320 continue;
321 for (i = 0; i < sband->n_channels; i++) {
322 sband->channels[i].flags = 0;
323 sband->channels[i].max_antenna_gain = 0;
324 sband->channels[i].max_power = 30;
325 }
326 }
327
328 hw->wiphy->max_scan_ssids = 2;
329 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
330
331 if (macaddr)
332 SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
333 else
334 SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
335
336 /* Fix up mac address if necessary */
337 if (hw->wiphy->perm_addr[3] == 0 &&
338 hw->wiphy->perm_addr[4] == 0 &&
339 hw->wiphy->perm_addr[5] == 0) {
340 get_random_bytes(&hw->wiphy->perm_addr[3], 3);
341 }
342
343 mutex_init(&priv->wsm_cmd_mux);
344 mutex_init(&priv->conf_mutex);
345 priv->workqueue = create_singlethread_workqueue("cw1200_wq");
346 if (!priv->workqueue) {
347 ieee80211_free_hw(hw);
348 return NULL;
349 }
350
351 sema_init(&priv->scan.lock, 1);
352 INIT_WORK(&priv->scan.work, cw1200_scan_work);
353 INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
354 INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
355 INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
356 cw1200_clear_recent_scan_work);
357 INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
358 INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
359 INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
360 INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
361 INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
362 spin_lock_init(&priv->event_queue_lock);
363 INIT_LIST_HEAD(&priv->event_queue);
364 INIT_WORK(&priv->event_handler, cw1200_event_handler);
365 INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
366 INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
367 spin_lock_init(&priv->bss_loss_lock);
368 spin_lock_init(&priv->ps_state_lock);
369 INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
370 INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
371 INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
372 INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
373 INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
374 INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
375 INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
376 INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
377 INIT_WORK(&priv->set_beacon_wakeup_period_work,
378 cw1200_set_beacon_wakeup_period_work);
379 timer_setup(&priv->mcast_timeout, cw1200_mcast_timeout, 0);
380
381 if (cw1200_queue_stats_init(&priv->tx_queue_stats,
382 CW1200_LINK_ID_MAX,
383 cw1200_skb_dtor,
384 priv)) {
385 destroy_workqueue(priv->workqueue);
386 ieee80211_free_hw(hw);
387 return NULL;
388 }
389
390 for (i = 0; i < 4; ++i) {
391 if (cw1200_queue_init(&priv->tx_queue[i],
392 &priv->tx_queue_stats, i, 16,
393 cw1200_ttl[i])) {
394 for (; i > 0; i--)
395 cw1200_queue_deinit(&priv->tx_queue[i - 1]);
396 cw1200_queue_stats_deinit(&priv->tx_queue_stats);
397 destroy_workqueue(priv->workqueue);
398 ieee80211_free_hw(hw);
399 return NULL;
400 }
401 }
402
403 init_waitqueue_head(&priv->channel_switch_done);
404 init_waitqueue_head(&priv->wsm_cmd_wq);
405 init_waitqueue_head(&priv->wsm_startup_done);
406 init_waitqueue_head(&priv->ps_mode_switch_done);
407 wsm_buf_init(&priv->wsm_cmd_buf);
408 spin_lock_init(&priv->wsm_cmd.lock);
409 priv->wsm_cmd.done = 1;
410 tx_policy_init(priv);
411
412 return hw;
413 }
414
cw1200_register_common(struct ieee80211_hw * dev)415 static int cw1200_register_common(struct ieee80211_hw *dev)
416 {
417 struct cw1200_common *priv = dev->priv;
418 int err;
419
420 #ifdef CONFIG_PM
421 err = cw1200_pm_init(&priv->pm_state, priv);
422 if (err) {
423 pr_err("Cannot init PM. (%d).\n",
424 err);
425 return err;
426 }
427 #endif
428
429 err = ieee80211_register_hw(dev);
430 if (err) {
431 pr_err("Cannot register device (%d).\n",
432 err);
433 #ifdef CONFIG_PM
434 cw1200_pm_deinit(&priv->pm_state);
435 #endif
436 return err;
437 }
438
439 cw1200_debug_init(priv);
440
441 pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
442 return 0;
443 }
444
cw1200_free_common(struct ieee80211_hw * dev)445 static void cw1200_free_common(struct ieee80211_hw *dev)
446 {
447 ieee80211_free_hw(dev);
448 }
449
cw1200_unregister_common(struct ieee80211_hw * dev)450 static void cw1200_unregister_common(struct ieee80211_hw *dev)
451 {
452 struct cw1200_common *priv = dev->priv;
453 int i;
454
455 ieee80211_unregister_hw(dev);
456
457 del_timer_sync(&priv->mcast_timeout);
458 cw1200_unregister_bh(priv);
459
460 cw1200_debug_release(priv);
461
462 mutex_destroy(&priv->conf_mutex);
463
464 wsm_buf_deinit(&priv->wsm_cmd_buf);
465
466 destroy_workqueue(priv->workqueue);
467 priv->workqueue = NULL;
468
469 if (priv->sdd) {
470 release_firmware(priv->sdd);
471 priv->sdd = NULL;
472 }
473
474 for (i = 0; i < 4; ++i)
475 cw1200_queue_deinit(&priv->tx_queue[i]);
476
477 cw1200_queue_stats_deinit(&priv->tx_queue_stats);
478 #ifdef CONFIG_PM
479 cw1200_pm_deinit(&priv->pm_state);
480 #endif
481 }
482
483 /* Clock is in KHz */
cw1200_dpll_from_clk(u16 clk_khz)484 u32 cw1200_dpll_from_clk(u16 clk_khz)
485 {
486 switch (clk_khz) {
487 case 0x32C8: /* 13000 KHz */
488 return 0x1D89D241;
489 case 0x3E80: /* 16000 KHz */
490 return 0x000001E1;
491 case 0x41A0: /* 16800 KHz */
492 return 0x124931C1;
493 case 0x4B00: /* 19200 KHz */
494 return 0x00000191;
495 case 0x5DC0: /* 24000 KHz */
496 return 0x00000141;
497 case 0x6590: /* 26000 KHz */
498 return 0x0EC4F121;
499 case 0x8340: /* 33600 KHz */
500 return 0x092490E1;
501 case 0x9600: /* 38400 KHz */
502 return 0x100010C1;
503 case 0x9C40: /* 40000 KHz */
504 return 0x000000C1;
505 case 0xBB80: /* 48000 KHz */
506 return 0x000000A1;
507 case 0xCB20: /* 52000 KHz */
508 return 0x07627091;
509 default:
510 pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n",
511 clk_khz);
512 return 0x0EC4F121;
513 }
514 }
515
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)516 int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
517 struct hwbus_priv *hwbus,
518 struct device *pdev,
519 struct cw1200_common **core,
520 int ref_clk, const u8 *macaddr,
521 const char *sdd_path, bool have_5ghz)
522 {
523 int err = -EINVAL;
524 struct ieee80211_hw *dev;
525 struct cw1200_common *priv;
526 struct wsm_operational_mode mode = {
527 .power_mode = cw1200_power_mode,
528 .disable_more_flag_usage = true,
529 };
530
531 dev = cw1200_init_common(macaddr, have_5ghz);
532 if (!dev)
533 goto err;
534
535 priv = dev->priv;
536 priv->hw_refclk = ref_clk;
537 if (cw1200_refclk)
538 priv->hw_refclk = cw1200_refclk;
539
540 priv->sdd_path = (char *)sdd_path;
541 if (cw1200_sdd_path)
542 priv->sdd_path = cw1200_sdd_path;
543
544 priv->hwbus_ops = hwbus_ops;
545 priv->hwbus_priv = hwbus;
546 priv->pdev = pdev;
547 SET_IEEE80211_DEV(priv->hw, pdev);
548
549 /* Pass struct cw1200_common back up */
550 *core = priv;
551
552 err = cw1200_register_bh(priv);
553 if (err)
554 goto err1;
555
556 err = cw1200_load_firmware(priv);
557 if (err)
558 goto err2;
559
560 if (wait_event_interruptible_timeout(priv->wsm_startup_done,
561 priv->firmware_ready,
562 3*HZ) <= 0) {
563 /* TODO: Need to find how to reset device
564 in QUEUE mode properly.
565 */
566 pr_err("Timeout waiting on device startup\n");
567 err = -ETIMEDOUT;
568 goto err2;
569 }
570
571 /* Set low-power mode. */
572 wsm_set_operational_mode(priv, &mode);
573
574 /* Enable multi-TX confirmation */
575 wsm_use_multi_tx_conf(priv, true);
576
577 err = cw1200_register_common(dev);
578 if (err)
579 goto err2;
580
581 return err;
582
583 err2:
584 cw1200_unregister_bh(priv);
585 err1:
586 cw1200_free_common(dev);
587 err:
588 *core = NULL;
589 return err;
590 }
591 EXPORT_SYMBOL_GPL(cw1200_core_probe);
592
cw1200_core_release(struct cw1200_common * self)593 void cw1200_core_release(struct cw1200_common *self)
594 {
595 /* Disable device interrupts */
596 self->hwbus_ops->lock(self->hwbus_priv);
597 __cw1200_irq_enable(self, 0);
598 self->hwbus_ops->unlock(self->hwbus_priv);
599
600 /* And then clean up */
601 cw1200_unregister_common(self->hw);
602 cw1200_free_common(self->hw);
603 return;
604 }
605 EXPORT_SYMBOL_GPL(cw1200_core_release);
606
