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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
39MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
40MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
41MODULE_LICENSE("GPL");
42MODULE_ALIAS("cw1200_core");
43
44/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
45static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
46module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, 0444);
47MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
48
49static char *cw1200_sdd_path;
50module_param(cw1200_sdd_path, charp, 0644);
51MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
52static int cw1200_refclk;
53module_param(cw1200_refclk, int, 0644);
54MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
55
56int cw1200_power_mode = wsm_power_mode_quiescent;
57module_param(cw1200_power_mode, int, 0644);
58MODULE_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
67static 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
82static 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
119static 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
136static 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
158static 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
178static 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
198static const unsigned long cw1200_ttl[] = {
199 1 * HZ, /* VO */
200 2 * HZ, /* VI */
201 5 * HZ, /* BE */
202 10 * HZ /* BK */
203};
204
205static 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
238static int cw1200_ba_rx_tids = -1;
239static int cw1200_ba_tx_tids = -1;
240module_param(cw1200_ba_rx_tids, int, 0644);
241module_param(cw1200_ba_tx_tids, int, 0644);
242MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
243MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
244
245#ifdef CONFIG_PM
246static 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
253static 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
415static 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
445static void cw1200_free_common(struct ieee80211_hw *dev)
446{
447 ieee80211_free_hw(dev);
448}
449
450static 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 */
484u32 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
516int 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
583err2:
584 cw1200_unregister_bh(priv);
585err1:
586 cw1200_free_common(dev);
587err:
588 *core = NULL;
589 return err;
590}
591EXPORT_SYMBOL_GPL(cw1200_core_probe);
592
593void 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}
605EXPORT_SYMBOL_GPL(cw1200_core_release);
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
39MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
40MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
41MODULE_LICENSE("GPL");
42MODULE_ALIAS("cw1200_core");
43
44/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
45static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
46module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, 0444);
47MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
48
49static char *cw1200_sdd_path;
50module_param(cw1200_sdd_path, charp, 0644);
51MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
52static int cw1200_refclk;
53module_param(cw1200_refclk, int, 0644);
54MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
55
56int cw1200_power_mode = wsm_power_mode_quiescent;
57module_param(cw1200_power_mode, int, 0644);
58MODULE_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
67static 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
82static 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
119static 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
136static 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
158static 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
178static 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
198static const unsigned long cw1200_ttl[] = {
199 1 * HZ, /* VO */
200 2 * HZ, /* VI */
201 5 * HZ, /* BE */
202 10 * HZ /* BK */
203};
204
205static const struct ieee80211_ops cw1200_ops = {
206 .add_chanctx = ieee80211_emulate_add_chanctx,
207 .remove_chanctx = ieee80211_emulate_remove_chanctx,
208 .change_chanctx = ieee80211_emulate_change_chanctx,
209 .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
210 .start = cw1200_start,
211 .stop = cw1200_stop,
212 .add_interface = cw1200_add_interface,
213 .remove_interface = cw1200_remove_interface,
214 .change_interface = cw1200_change_interface,
215 .tx = cw1200_tx,
216 .wake_tx_queue = ieee80211_handle_wake_tx_queue,
217 .hw_scan = cw1200_hw_scan,
218 .set_tim = cw1200_set_tim,
219 .sta_notify = cw1200_sta_notify,
220 .sta_add = cw1200_sta_add,
221 .sta_remove = cw1200_sta_remove,
222 .set_key = cw1200_set_key,
223 .set_rts_threshold = cw1200_set_rts_threshold,
224 .config = cw1200_config,
225 .bss_info_changed = cw1200_bss_info_changed,
226 .prepare_multicast = cw1200_prepare_multicast,
227 .configure_filter = cw1200_configure_filter,
228 .conf_tx = cw1200_conf_tx,
229 .get_stats = cw1200_get_stats,
230 .ampdu_action = cw1200_ampdu_action,
231 .flush = cw1200_flush,
232#ifdef CONFIG_PM
233 .suspend = cw1200_wow_suspend,
234 .resume = cw1200_wow_resume,
235#endif
236 /* Intentionally not offloaded: */
237 /*.channel_switch = cw1200_channel_switch, */
238 /*.remain_on_channel = cw1200_remain_on_channel, */
239 /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
240};
241
242static int cw1200_ba_rx_tids = -1;
243static int cw1200_ba_tx_tids = -1;
244module_param(cw1200_ba_rx_tids, int, 0644);
245module_param(cw1200_ba_tx_tids, int, 0644);
246MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
247MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
248
249#ifdef CONFIG_PM
250static const struct wiphy_wowlan_support cw1200_wowlan_support = {
251 /* Support only for limited wowlan functionalities */
252 .flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
253};
254#endif
255
256
257static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
258 const bool have_5ghz)
259{
260 int i, band;
261 struct ieee80211_hw *hw;
262 struct cw1200_common *priv;
263
264 hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
265 if (!hw)
266 return NULL;
267
268 priv = hw->priv;
269 priv->hw = hw;
270 priv->hw_type = -1;
271 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
272 priv->rates = cw1200_rates; /* TODO: fetch from FW */
273 priv->mcs_rates = cw1200_n_rates;
274 if (cw1200_ba_rx_tids != -1)
275 priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
276 else
277 priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
278 if (cw1200_ba_tx_tids != -1)
279 priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
280 else
281 priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
282
283 ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
284 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
285 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
286 ieee80211_hw_set(hw, CONNECTION_MONITOR);
287 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
288 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
289 ieee80211_hw_set(hw, SIGNAL_DBM);
290 ieee80211_hw_set(hw, SUPPORTS_PS);
291
292 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
293 BIT(NL80211_IFTYPE_ADHOC) |
294 BIT(NL80211_IFTYPE_AP) |
295 BIT(NL80211_IFTYPE_MESH_POINT) |
296 BIT(NL80211_IFTYPE_P2P_CLIENT) |
297 BIT(NL80211_IFTYPE_P2P_GO);
298
299#ifdef CONFIG_PM
300 hw->wiphy->wowlan = &cw1200_wowlan_support;
301#endif
302
303 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
304
305 hw->queues = 4;
306
307 priv->rts_threshold = -1;
308
309 hw->max_rates = 8;
310 hw->max_rate_tries = 15;
311 hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
312 8; /* TKIP IV */
313
314 hw->sta_data_size = sizeof(struct cw1200_sta_priv);
315
316 hw->wiphy->bands[NL80211_BAND_2GHZ] = &cw1200_band_2ghz;
317 if (have_5ghz)
318 hw->wiphy->bands[NL80211_BAND_5GHZ] = &cw1200_band_5ghz;
319
320 /* Channel params have to be cleared before registering wiphy again */
321 for (band = 0; band < NUM_NL80211_BANDS; band++) {
322 struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
323 if (!sband)
324 continue;
325 for (i = 0; i < sband->n_channels; i++) {
326 sband->channels[i].flags = 0;
327 sband->channels[i].max_antenna_gain = 0;
328 sband->channels[i].max_power = 30;
329 }
330 }
331
332 hw->wiphy->max_scan_ssids = 2;
333 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
334
335 if (macaddr)
336 SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
337 else
338 SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
339
340 /* Fix up mac address if necessary */
341 if (hw->wiphy->perm_addr[3] == 0 &&
342 hw->wiphy->perm_addr[4] == 0 &&
343 hw->wiphy->perm_addr[5] == 0) {
344 get_random_bytes(&hw->wiphy->perm_addr[3], 3);
345 }
346
347 mutex_init(&priv->wsm_cmd_mux);
348 mutex_init(&priv->conf_mutex);
349 priv->workqueue = create_singlethread_workqueue("cw1200_wq");
350 if (!priv->workqueue) {
351 ieee80211_free_hw(hw);
352 return NULL;
353 }
354
355 sema_init(&priv->scan.lock, 1);
356 INIT_WORK(&priv->scan.work, cw1200_scan_work);
357 INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
358 INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
359 INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
360 cw1200_clear_recent_scan_work);
361 INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
362 INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
363 INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
364 INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
365 INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
366 spin_lock_init(&priv->event_queue_lock);
367 INIT_LIST_HEAD(&priv->event_queue);
368 INIT_WORK(&priv->event_handler, cw1200_event_handler);
369 INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
370 INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
371 spin_lock_init(&priv->bss_loss_lock);
372 spin_lock_init(&priv->ps_state_lock);
373 INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
374 INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
375 INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
376 INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
377 INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
378 INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
379 INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
380 INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
381 INIT_WORK(&priv->set_beacon_wakeup_period_work,
382 cw1200_set_beacon_wakeup_period_work);
383 timer_setup(&priv->mcast_timeout, cw1200_mcast_timeout, 0);
384
385 if (cw1200_queue_stats_init(&priv->tx_queue_stats,
386 CW1200_LINK_ID_MAX,
387 cw1200_skb_dtor,
388 priv)) {
389 destroy_workqueue(priv->workqueue);
390 ieee80211_free_hw(hw);
391 return NULL;
392 }
393
394 for (i = 0; i < 4; ++i) {
395 if (cw1200_queue_init(&priv->tx_queue[i],
396 &priv->tx_queue_stats, i, 16,
397 cw1200_ttl[i])) {
398 for (; i > 0; i--)
399 cw1200_queue_deinit(&priv->tx_queue[i - 1]);
400 cw1200_queue_stats_deinit(&priv->tx_queue_stats);
401 destroy_workqueue(priv->workqueue);
402 ieee80211_free_hw(hw);
403 return NULL;
404 }
405 }
406
407 init_waitqueue_head(&priv->channel_switch_done);
408 init_waitqueue_head(&priv->wsm_cmd_wq);
409 init_waitqueue_head(&priv->wsm_startup_done);
410 init_waitqueue_head(&priv->ps_mode_switch_done);
411 wsm_buf_init(&priv->wsm_cmd_buf);
412 spin_lock_init(&priv->wsm_cmd.lock);
413 priv->wsm_cmd.done = 1;
414 tx_policy_init(priv);
415
416 return hw;
417}
418
419static int cw1200_register_common(struct ieee80211_hw *dev)
420{
421 struct cw1200_common *priv = dev->priv;
422 int err;
423
424#ifdef CONFIG_PM
425 err = cw1200_pm_init(&priv->pm_state, priv);
426 if (err) {
427 pr_err("Cannot init PM. (%d).\n",
428 err);
429 return err;
430 }
431#endif
432
433 err = ieee80211_register_hw(dev);
434 if (err) {
435 pr_err("Cannot register device (%d).\n",
436 err);
437#ifdef CONFIG_PM
438 cw1200_pm_deinit(&priv->pm_state);
439#endif
440 return err;
441 }
442
443 cw1200_debug_init(priv);
444
445 pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
446 return 0;
447}
448
449static void cw1200_free_common(struct ieee80211_hw *dev)
450{
451 ieee80211_free_hw(dev);
452}
453
454static void cw1200_unregister_common(struct ieee80211_hw *dev)
455{
456 struct cw1200_common *priv = dev->priv;
457 int i;
458
459 ieee80211_unregister_hw(dev);
460
461 del_timer_sync(&priv->mcast_timeout);
462 cw1200_unregister_bh(priv);
463
464 cw1200_debug_release(priv);
465
466 mutex_destroy(&priv->conf_mutex);
467
468 wsm_buf_deinit(&priv->wsm_cmd_buf);
469
470 destroy_workqueue(priv->workqueue);
471 priv->workqueue = NULL;
472
473 if (priv->sdd) {
474 release_firmware(priv->sdd);
475 priv->sdd = NULL;
476 }
477
478 for (i = 0; i < 4; ++i)
479 cw1200_queue_deinit(&priv->tx_queue[i]);
480
481 cw1200_queue_stats_deinit(&priv->tx_queue_stats);
482#ifdef CONFIG_PM
483 cw1200_pm_deinit(&priv->pm_state);
484#endif
485}
486
487/* Clock is in KHz */
488u32 cw1200_dpll_from_clk(u16 clk_khz)
489{
490 switch (clk_khz) {
491 case 0x32C8: /* 13000 KHz */
492 return 0x1D89D241;
493 case 0x3E80: /* 16000 KHz */
494 return 0x000001E1;
495 case 0x41A0: /* 16800 KHz */
496 return 0x124931C1;
497 case 0x4B00: /* 19200 KHz */
498 return 0x00000191;
499 case 0x5DC0: /* 24000 KHz */
500 return 0x00000141;
501 case 0x6590: /* 26000 KHz */
502 return 0x0EC4F121;
503 case 0x8340: /* 33600 KHz */
504 return 0x092490E1;
505 case 0x9600: /* 38400 KHz */
506 return 0x100010C1;
507 case 0x9C40: /* 40000 KHz */
508 return 0x000000C1;
509 case 0xBB80: /* 48000 KHz */
510 return 0x000000A1;
511 case 0xCB20: /* 52000 KHz */
512 return 0x07627091;
513 default:
514 pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n",
515 clk_khz);
516 return 0x0EC4F121;
517 }
518}
519
520int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
521 struct hwbus_priv *hwbus,
522 struct device *pdev,
523 struct cw1200_common **core,
524 int ref_clk, const u8 *macaddr,
525 const char *sdd_path, bool have_5ghz)
526{
527 int err = -EINVAL;
528 struct ieee80211_hw *dev;
529 struct cw1200_common *priv;
530 struct wsm_operational_mode mode = {
531 .power_mode = cw1200_power_mode,
532 .disable_more_flag_usage = true,
533 };
534
535 dev = cw1200_init_common(macaddr, have_5ghz);
536 if (!dev)
537 goto err;
538
539 priv = dev->priv;
540 priv->hw_refclk = ref_clk;
541 if (cw1200_refclk)
542 priv->hw_refclk = cw1200_refclk;
543
544 priv->sdd_path = (char *)sdd_path;
545 if (cw1200_sdd_path)
546 priv->sdd_path = cw1200_sdd_path;
547
548 priv->hwbus_ops = hwbus_ops;
549 priv->hwbus_priv = hwbus;
550 priv->pdev = pdev;
551 SET_IEEE80211_DEV(priv->hw, pdev);
552
553 /* Pass struct cw1200_common back up */
554 *core = priv;
555
556 err = cw1200_register_bh(priv);
557 if (err)
558 goto err1;
559
560 err = cw1200_load_firmware(priv);
561 if (err)
562 goto err2;
563
564 if (wait_event_interruptible_timeout(priv->wsm_startup_done,
565 priv->firmware_ready,
566 3*HZ) <= 0) {
567 /* TODO: Need to find how to reset device
568 in QUEUE mode properly.
569 */
570 pr_err("Timeout waiting on device startup\n");
571 err = -ETIMEDOUT;
572 goto err2;
573 }
574
575 /* Set low-power mode. */
576 wsm_set_operational_mode(priv, &mode);
577
578 /* Enable multi-TX confirmation */
579 wsm_use_multi_tx_conf(priv, true);
580
581 err = cw1200_register_common(dev);
582 if (err)
583 goto err2;
584
585 return err;
586
587err2:
588 cw1200_unregister_bh(priv);
589err1:
590 cw1200_free_common(dev);
591err:
592 *core = NULL;
593 return err;
594}
595EXPORT_SYMBOL_GPL(cw1200_core_probe);
596
597void cw1200_core_release(struct cw1200_common *self)
598{
599 /* Disable device interrupts */
600 self->hwbus_ops->lock(self->hwbus_priv);
601 __cw1200_irq_enable(self, 0);
602 self->hwbus_ops->unlock(self->hwbus_priv);
603
604 /* And then clean up */
605 cw1200_unregister_common(self->hw);
606 cw1200_free_common(self->hw);
607 return;
608}
609EXPORT_SYMBOL_GPL(cw1200_core_release);