diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_init.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_init.c | 713 |
1 files changed, 713 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c new file mode 100644 index 000000000000..10c87605d2c4 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c | |||
@@ -0,0 +1,713 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2010 Atheros Communications Inc. | ||
3 | * | ||
4 | * Permission to use, copy, modify, and/or distribute this software for any | ||
5 | * purpose with or without fee is hereby granted, provided that the above | ||
6 | * copyright notice and this permission notice appear in all copies. | ||
7 | * | ||
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | ||
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | ||
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | ||
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | ||
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | ||
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | ||
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | ||
15 | */ | ||
16 | |||
17 | #include "htc.h" | ||
18 | |||
19 | MODULE_AUTHOR("Atheros Communications"); | ||
20 | MODULE_LICENSE("Dual BSD/GPL"); | ||
21 | MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices"); | ||
22 | |||
23 | static unsigned int ath9k_debug = ATH_DBG_DEFAULT; | ||
24 | module_param_named(debug, ath9k_debug, uint, 0); | ||
25 | MODULE_PARM_DESC(debug, "Debugging mask"); | ||
26 | |||
27 | int htc_modparam_nohwcrypt; | ||
28 | module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444); | ||
29 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); | ||
30 | |||
31 | #define CHAN2G(_freq, _idx) { \ | ||
32 | .center_freq = (_freq), \ | ||
33 | .hw_value = (_idx), \ | ||
34 | .max_power = 20, \ | ||
35 | } | ||
36 | |||
37 | static struct ieee80211_channel ath9k_2ghz_channels[] = { | ||
38 | CHAN2G(2412, 0), /* Channel 1 */ | ||
39 | CHAN2G(2417, 1), /* Channel 2 */ | ||
40 | CHAN2G(2422, 2), /* Channel 3 */ | ||
41 | CHAN2G(2427, 3), /* Channel 4 */ | ||
42 | CHAN2G(2432, 4), /* Channel 5 */ | ||
43 | CHAN2G(2437, 5), /* Channel 6 */ | ||
44 | CHAN2G(2442, 6), /* Channel 7 */ | ||
45 | CHAN2G(2447, 7), /* Channel 8 */ | ||
46 | CHAN2G(2452, 8), /* Channel 9 */ | ||
47 | CHAN2G(2457, 9), /* Channel 10 */ | ||
48 | CHAN2G(2462, 10), /* Channel 11 */ | ||
49 | CHAN2G(2467, 11), /* Channel 12 */ | ||
50 | CHAN2G(2472, 12), /* Channel 13 */ | ||
51 | CHAN2G(2484, 13), /* Channel 14 */ | ||
52 | }; | ||
53 | |||
54 | /* Atheros hardware rate code addition for short premble */ | ||
55 | #define SHPCHECK(__hw_rate, __flags) \ | ||
56 | ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04) : 0) | ||
57 | |||
58 | #define RATE(_bitrate, _hw_rate, _flags) { \ | ||
59 | .bitrate = (_bitrate), \ | ||
60 | .flags = (_flags), \ | ||
61 | .hw_value = (_hw_rate), \ | ||
62 | .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \ | ||
63 | } | ||
64 | |||
65 | static struct ieee80211_rate ath9k_legacy_rates[] = { | ||
66 | RATE(10, 0x1b, 0), | ||
67 | RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp : 0x1e */ | ||
68 | RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp: 0x1d */ | ||
69 | RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), /* short: 0x1c */ | ||
70 | RATE(60, 0x0b, 0), | ||
71 | RATE(90, 0x0f, 0), | ||
72 | RATE(120, 0x0a, 0), | ||
73 | RATE(180, 0x0e, 0), | ||
74 | RATE(240, 0x09, 0), | ||
75 | RATE(360, 0x0d, 0), | ||
76 | RATE(480, 0x08, 0), | ||
77 | RATE(540, 0x0c, 0), | ||
78 | }; | ||
79 | |||
80 | static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) | ||
81 | { | ||
82 | int time_left; | ||
83 | |||
84 | /* Firmware can take up to 50ms to get ready, to be safe use 1 second */ | ||
85 | time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ); | ||
86 | if (!time_left) { | ||
87 | dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n"); | ||
88 | return -ETIMEDOUT; | ||
89 | } | ||
90 | |||
91 | return 0; | ||
92 | } | ||
93 | |||
94 | static void ath9k_deinit_priv(struct ath9k_htc_priv *priv) | ||
95 | { | ||
96 | ath9k_htc_exit_debug(priv->ah); | ||
97 | ath9k_hw_deinit(priv->ah); | ||
98 | tasklet_kill(&priv->wmi_tasklet); | ||
99 | tasklet_kill(&priv->rx_tasklet); | ||
100 | tasklet_kill(&priv->tx_tasklet); | ||
101 | kfree(priv->ah); | ||
102 | priv->ah = NULL; | ||
103 | } | ||
104 | |||
105 | static void ath9k_deinit_device(struct ath9k_htc_priv *priv) | ||
106 | { | ||
107 | struct ieee80211_hw *hw = priv->hw; | ||
108 | |||
109 | wiphy_rfkill_stop_polling(hw->wiphy); | ||
110 | ath9k_deinit_leds(priv); | ||
111 | ieee80211_unregister_hw(hw); | ||
112 | ath9k_rx_cleanup(priv); | ||
113 | ath9k_tx_cleanup(priv); | ||
114 | ath9k_deinit_priv(priv); | ||
115 | } | ||
116 | |||
117 | static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv, | ||
118 | u16 service_id, | ||
119 | void (*tx) (void *, | ||
120 | struct sk_buff *, | ||
121 | enum htc_endpoint_id, | ||
122 | bool txok), | ||
123 | enum htc_endpoint_id *ep_id) | ||
124 | { | ||
125 | struct htc_service_connreq req; | ||
126 | |||
127 | memset(&req, 0, sizeof(struct htc_service_connreq)); | ||
128 | |||
129 | req.service_id = service_id; | ||
130 | req.ep_callbacks.priv = priv; | ||
131 | req.ep_callbacks.rx = ath9k_htc_rxep; | ||
132 | req.ep_callbacks.tx = tx; | ||
133 | |||
134 | return htc_connect_service(priv->htc, &req, ep_id); | ||
135 | } | ||
136 | |||
137 | static int ath9k_init_htc_services(struct ath9k_htc_priv *priv) | ||
138 | { | ||
139 | int ret; | ||
140 | |||
141 | /* WMI CMD*/ | ||
142 | ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep); | ||
143 | if (ret) | ||
144 | goto err; | ||
145 | |||
146 | /* Beacon */ | ||
147 | ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, NULL, | ||
148 | &priv->beacon_ep); | ||
149 | if (ret) | ||
150 | goto err; | ||
151 | |||
152 | /* CAB */ | ||
153 | ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep, | ||
154 | &priv->cab_ep); | ||
155 | if (ret) | ||
156 | goto err; | ||
157 | |||
158 | |||
159 | /* UAPSD */ | ||
160 | ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep, | ||
161 | &priv->uapsd_ep); | ||
162 | if (ret) | ||
163 | goto err; | ||
164 | |||
165 | /* MGMT */ | ||
166 | ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep, | ||
167 | &priv->mgmt_ep); | ||
168 | if (ret) | ||
169 | goto err; | ||
170 | |||
171 | /* DATA BE */ | ||
172 | ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep, | ||
173 | &priv->data_be_ep); | ||
174 | if (ret) | ||
175 | goto err; | ||
176 | |||
177 | /* DATA BK */ | ||
178 | ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep, | ||
179 | &priv->data_bk_ep); | ||
180 | if (ret) | ||
181 | goto err; | ||
182 | |||
183 | /* DATA VI */ | ||
184 | ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep, | ||
185 | &priv->data_vi_ep); | ||
186 | if (ret) | ||
187 | goto err; | ||
188 | |||
189 | /* DATA VO */ | ||
190 | ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep, | ||
191 | &priv->data_vo_ep); | ||
192 | if (ret) | ||
193 | goto err; | ||
194 | |||
195 | ret = htc_init(priv->htc); | ||
196 | if (ret) | ||
197 | goto err; | ||
198 | |||
199 | return 0; | ||
200 | |||
201 | err: | ||
202 | dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n"); | ||
203 | return ret; | ||
204 | } | ||
205 | |||
206 | static int ath9k_reg_notifier(struct wiphy *wiphy, | ||
207 | struct regulatory_request *request) | ||
208 | { | ||
209 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | ||
210 | struct ath9k_htc_priv *priv = hw->priv; | ||
211 | |||
212 | return ath_reg_notifier_apply(wiphy, request, | ||
213 | ath9k_hw_regulatory(priv->ah)); | ||
214 | } | ||
215 | |||
216 | static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) | ||
217 | { | ||
218 | struct ath_hw *ah = (struct ath_hw *) hw_priv; | ||
219 | struct ath_common *common = ath9k_hw_common(ah); | ||
220 | struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; | ||
221 | __be32 val, reg = cpu_to_be32(reg_offset); | ||
222 | int r; | ||
223 | |||
224 | r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, | ||
225 | (u8 *) ®, sizeof(reg), | ||
226 | (u8 *) &val, sizeof(val), | ||
227 | 100); | ||
228 | if (unlikely(r)) { | ||
229 | ath_print(common, ATH_DBG_WMI, | ||
230 | "REGISTER READ FAILED: (0x%04x, %d)\n", | ||
231 | reg_offset, r); | ||
232 | return -EIO; | ||
233 | } | ||
234 | |||
235 | return be32_to_cpu(val); | ||
236 | } | ||
237 | |||
238 | static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) | ||
239 | { | ||
240 | struct ath_hw *ah = (struct ath_hw *) hw_priv; | ||
241 | struct ath_common *common = ath9k_hw_common(ah); | ||
242 | struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; | ||
243 | __be32 buf[2] = { | ||
244 | cpu_to_be32(reg_offset), | ||
245 | cpu_to_be32(val), | ||
246 | }; | ||
247 | int r; | ||
248 | |||
249 | r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, | ||
250 | (u8 *) &buf, sizeof(buf), | ||
251 | (u8 *) &val, sizeof(val), | ||
252 | 100); | ||
253 | if (unlikely(r)) { | ||
254 | ath_print(common, ATH_DBG_WMI, | ||
255 | "REGISTER WRITE FAILED:(0x%04x, %d)\n", | ||
256 | reg_offset, r); | ||
257 | } | ||
258 | } | ||
259 | |||
260 | static const struct ath_ops ath9k_common_ops = { | ||
261 | .read = ath9k_ioread32, | ||
262 | .write = ath9k_iowrite32, | ||
263 | }; | ||
264 | |||
265 | static void ath_usb_read_cachesize(struct ath_common *common, int *csz) | ||
266 | { | ||
267 | *csz = L1_CACHE_BYTES >> 2; | ||
268 | } | ||
269 | |||
270 | static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data) | ||
271 | { | ||
272 | struct ath_hw *ah = (struct ath_hw *) common->ah; | ||
273 | |||
274 | (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); | ||
275 | |||
276 | if (!ath9k_hw_wait(ah, | ||
277 | AR_EEPROM_STATUS_DATA, | ||
278 | AR_EEPROM_STATUS_DATA_BUSY | | ||
279 | AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0, | ||
280 | AH_WAIT_TIMEOUT)) | ||
281 | return false; | ||
282 | |||
283 | *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA), | ||
284 | AR_EEPROM_STATUS_DATA_VAL); | ||
285 | |||
286 | return true; | ||
287 | } | ||
288 | |||
289 | static const struct ath_bus_ops ath9k_usb_bus_ops = { | ||
290 | .read_cachesize = ath_usb_read_cachesize, | ||
291 | .eeprom_read = ath_usb_eeprom_read, | ||
292 | }; | ||
293 | |||
294 | static void setup_ht_cap(struct ath9k_htc_priv *priv, | ||
295 | struct ieee80211_sta_ht_cap *ht_info) | ||
296 | { | ||
297 | ht_info->ht_supported = true; | ||
298 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | ||
299 | IEEE80211_HT_CAP_SM_PS | | ||
300 | IEEE80211_HT_CAP_SGI_40 | | ||
301 | IEEE80211_HT_CAP_DSSSCCK40; | ||
302 | |||
303 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; | ||
304 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; | ||
305 | |||
306 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | ||
307 | ht_info->mcs.rx_mask[0] = 0xff; | ||
308 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; | ||
309 | } | ||
310 | |||
311 | static int ath9k_init_queues(struct ath9k_htc_priv *priv) | ||
312 | { | ||
313 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
314 | int i; | ||
315 | |||
316 | for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++) | ||
317 | priv->hwq_map[i] = -1; | ||
318 | |||
319 | if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_BE)) { | ||
320 | ath_print(common, ATH_DBG_FATAL, | ||
321 | "Unable to setup xmit queue for BE traffic\n"); | ||
322 | goto err; | ||
323 | } | ||
324 | |||
325 | if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_BK)) { | ||
326 | ath_print(common, ATH_DBG_FATAL, | ||
327 | "Unable to setup xmit queue for BK traffic\n"); | ||
328 | goto err; | ||
329 | } | ||
330 | if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_VI)) { | ||
331 | ath_print(common, ATH_DBG_FATAL, | ||
332 | "Unable to setup xmit queue for VI traffic\n"); | ||
333 | goto err; | ||
334 | } | ||
335 | if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_VO)) { | ||
336 | ath_print(common, ATH_DBG_FATAL, | ||
337 | "Unable to setup xmit queue for VO traffic\n"); | ||
338 | goto err; | ||
339 | } | ||
340 | |||
341 | return 0; | ||
342 | |||
343 | err: | ||
344 | return -EINVAL; | ||
345 | } | ||
346 | |||
347 | static void ath9k_init_crypto(struct ath9k_htc_priv *priv) | ||
348 | { | ||
349 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
350 | int i = 0; | ||
351 | |||
352 | /* Get the hardware key cache size. */ | ||
353 | common->keymax = priv->ah->caps.keycache_size; | ||
354 | if (common->keymax > ATH_KEYMAX) { | ||
355 | ath_print(common, ATH_DBG_ANY, | ||
356 | "Warning, using only %u entries in %u key cache\n", | ||
357 | ATH_KEYMAX, common->keymax); | ||
358 | common->keymax = ATH_KEYMAX; | ||
359 | } | ||
360 | |||
361 | /* | ||
362 | * Reset the key cache since some parts do not | ||
363 | * reset the contents on initial power up. | ||
364 | */ | ||
365 | for (i = 0; i < common->keymax; i++) | ||
366 | ath9k_hw_keyreset(priv->ah, (u16) i); | ||
367 | |||
368 | if (ath9k_hw_getcapability(priv->ah, ATH9K_CAP_CIPHER, | ||
369 | ATH9K_CIPHER_TKIP, NULL)) { | ||
370 | /* | ||
371 | * Whether we should enable h/w TKIP MIC. | ||
372 | * XXX: if we don't support WME TKIP MIC, then we wouldn't | ||
373 | * report WMM capable, so it's always safe to turn on | ||
374 | * TKIP MIC in this case. | ||
375 | */ | ||
376 | ath9k_hw_setcapability(priv->ah, ATH9K_CAP_TKIP_MIC, 0, 1, NULL); | ||
377 | } | ||
378 | |||
379 | /* | ||
380 | * Check whether the separate key cache entries | ||
381 | * are required to handle both tx+rx MIC keys. | ||
382 | * With split mic keys the number of stations is limited | ||
383 | * to 27 otherwise 59. | ||
384 | */ | ||
385 | if (ath9k_hw_getcapability(priv->ah, ATH9K_CAP_CIPHER, | ||
386 | ATH9K_CIPHER_TKIP, NULL) | ||
387 | && ath9k_hw_getcapability(priv->ah, ATH9K_CAP_CIPHER, | ||
388 | ATH9K_CIPHER_MIC, NULL) | ||
389 | && ath9k_hw_getcapability(priv->ah, ATH9K_CAP_TKIP_SPLIT, | ||
390 | 0, NULL)) | ||
391 | common->splitmic = 1; | ||
392 | |||
393 | /* turn on mcast key search if possible */ | ||
394 | if (!ath9k_hw_getcapability(priv->ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) | ||
395 | (void)ath9k_hw_setcapability(priv->ah, ATH9K_CAP_MCAST_KEYSRCH, | ||
396 | 1, 1, NULL); | ||
397 | } | ||
398 | |||
399 | static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv) | ||
400 | { | ||
401 | if (test_bit(ATH9K_MODE_11G, priv->ah->caps.wireless_modes)) { | ||
402 | priv->sbands[IEEE80211_BAND_2GHZ].channels = | ||
403 | ath9k_2ghz_channels; | ||
404 | priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | ||
405 | priv->sbands[IEEE80211_BAND_2GHZ].n_channels = | ||
406 | ARRAY_SIZE(ath9k_2ghz_channels); | ||
407 | priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates; | ||
408 | priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates = | ||
409 | ARRAY_SIZE(ath9k_legacy_rates); | ||
410 | } | ||
411 | } | ||
412 | |||
413 | static void ath9k_init_misc(struct ath9k_htc_priv *priv) | ||
414 | { | ||
415 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
416 | |||
417 | common->tx_chainmask = priv->ah->caps.tx_chainmask; | ||
418 | common->rx_chainmask = priv->ah->caps.rx_chainmask; | ||
419 | |||
420 | if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) | ||
421 | memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); | ||
422 | |||
423 | priv->op_flags |= OP_TXAGGR; | ||
424 | } | ||
425 | |||
426 | static int ath9k_init_priv(struct ath9k_htc_priv *priv, u16 devid) | ||
427 | { | ||
428 | struct ath_hw *ah = NULL; | ||
429 | struct ath_common *common; | ||
430 | int ret = 0, csz = 0; | ||
431 | |||
432 | priv->op_flags |= OP_INVALID; | ||
433 | |||
434 | ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); | ||
435 | if (!ah) | ||
436 | return -ENOMEM; | ||
437 | |||
438 | ah->hw_version.devid = devid; | ||
439 | ah->hw_version.subsysid = 0; /* FIXME */ | ||
440 | priv->ah = ah; | ||
441 | |||
442 | common = ath9k_hw_common(ah); | ||
443 | common->ops = &ath9k_common_ops; | ||
444 | common->bus_ops = &ath9k_usb_bus_ops; | ||
445 | common->ah = ah; | ||
446 | common->hw = priv->hw; | ||
447 | common->priv = priv; | ||
448 | common->debug_mask = ath9k_debug; | ||
449 | |||
450 | spin_lock_init(&priv->wmi->wmi_lock); | ||
451 | spin_lock_init(&priv->beacon_lock); | ||
452 | mutex_init(&priv->mutex); | ||
453 | mutex_init(&priv->aggr_work.mutex); | ||
454 | tasklet_init(&priv->wmi_tasklet, ath9k_wmi_tasklet, | ||
455 | (unsigned long)priv); | ||
456 | tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet, | ||
457 | (unsigned long)priv); | ||
458 | tasklet_init(&priv->tx_tasklet, ath9k_tx_tasklet, (unsigned long)priv); | ||
459 | INIT_DELAYED_WORK(&priv->ath9k_aggr_work, ath9k_htc_aggr_work); | ||
460 | INIT_DELAYED_WORK(&priv->ath9k_ani_work, ath9k_ani_work); | ||
461 | |||
462 | /* | ||
463 | * Cache line size is used to size and align various | ||
464 | * structures used to communicate with the hardware. | ||
465 | */ | ||
466 | ath_read_cachesize(common, &csz); | ||
467 | common->cachelsz = csz << 2; /* convert to bytes */ | ||
468 | |||
469 | ret = ath9k_hw_init(ah); | ||
470 | if (ret) { | ||
471 | ath_print(common, ATH_DBG_FATAL, | ||
472 | "Unable to initialize hardware; " | ||
473 | "initialization status: %d\n", ret); | ||
474 | goto err_hw; | ||
475 | } | ||
476 | |||
477 | ret = ath9k_htc_init_debug(ah); | ||
478 | if (ret) { | ||
479 | ath_print(common, ATH_DBG_FATAL, | ||
480 | "Unable to create debugfs files\n"); | ||
481 | goto err_debug; | ||
482 | } | ||
483 | |||
484 | ret = ath9k_init_queues(priv); | ||
485 | if (ret) | ||
486 | goto err_queues; | ||
487 | |||
488 | ath9k_init_crypto(priv); | ||
489 | ath9k_init_channels_rates(priv); | ||
490 | ath9k_init_misc(priv); | ||
491 | |||
492 | return 0; | ||
493 | |||
494 | err_queues: | ||
495 | ath9k_htc_exit_debug(ah); | ||
496 | err_debug: | ||
497 | ath9k_hw_deinit(ah); | ||
498 | err_hw: | ||
499 | |||
500 | kfree(ah); | ||
501 | priv->ah = NULL; | ||
502 | |||
503 | return ret; | ||
504 | } | ||
505 | |||
506 | static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, | ||
507 | struct ieee80211_hw *hw) | ||
508 | { | ||
509 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
510 | |||
511 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | ||
512 | IEEE80211_HW_AMPDU_AGGREGATION | | ||
513 | IEEE80211_HW_SPECTRUM_MGMT | | ||
514 | IEEE80211_HW_HAS_RATE_CONTROL; | ||
515 | |||
516 | hw->wiphy->interface_modes = | ||
517 | BIT(NL80211_IFTYPE_STATION) | | ||
518 | BIT(NL80211_IFTYPE_ADHOC); | ||
519 | |||
520 | hw->queues = 4; | ||
521 | hw->channel_change_time = 5000; | ||
522 | hw->max_listen_interval = 10; | ||
523 | hw->vif_data_size = sizeof(struct ath9k_htc_vif); | ||
524 | hw->sta_data_size = sizeof(struct ath9k_htc_sta); | ||
525 | |||
526 | /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */ | ||
527 | hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) + | ||
528 | sizeof(struct htc_frame_hdr) + 4; | ||
529 | |||
530 | if (test_bit(ATH9K_MODE_11G, priv->ah->caps.wireless_modes)) | ||
531 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | ||
532 | &priv->sbands[IEEE80211_BAND_2GHZ]; | ||
533 | |||
534 | if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) { | ||
535 | if (test_bit(ATH9K_MODE_11G, priv->ah->caps.wireless_modes)) | ||
536 | setup_ht_cap(priv, | ||
537 | &priv->sbands[IEEE80211_BAND_2GHZ].ht_cap); | ||
538 | } | ||
539 | |||
540 | SET_IEEE80211_PERM_ADDR(hw, common->macaddr); | ||
541 | } | ||
542 | |||
543 | static int ath9k_init_device(struct ath9k_htc_priv *priv, u16 devid) | ||
544 | { | ||
545 | struct ieee80211_hw *hw = priv->hw; | ||
546 | struct ath_common *common; | ||
547 | struct ath_hw *ah; | ||
548 | int error = 0; | ||
549 | struct ath_regulatory *reg; | ||
550 | |||
551 | /* Bring up device */ | ||
552 | error = ath9k_init_priv(priv, devid); | ||
553 | if (error != 0) | ||
554 | goto err_init; | ||
555 | |||
556 | ah = priv->ah; | ||
557 | common = ath9k_hw_common(ah); | ||
558 | ath9k_set_hw_capab(priv, hw); | ||
559 | |||
560 | /* Initialize regulatory */ | ||
561 | error = ath_regd_init(&common->regulatory, priv->hw->wiphy, | ||
562 | ath9k_reg_notifier); | ||
563 | if (error) | ||
564 | goto err_regd; | ||
565 | |||
566 | reg = &common->regulatory; | ||
567 | |||
568 | /* Setup TX */ | ||
569 | error = ath9k_tx_init(priv); | ||
570 | if (error != 0) | ||
571 | goto err_tx; | ||
572 | |||
573 | /* Setup RX */ | ||
574 | error = ath9k_rx_init(priv); | ||
575 | if (error != 0) | ||
576 | goto err_rx; | ||
577 | |||
578 | /* Register with mac80211 */ | ||
579 | error = ieee80211_register_hw(hw); | ||
580 | if (error) | ||
581 | goto err_register; | ||
582 | |||
583 | /* Handle world regulatory */ | ||
584 | if (!ath_is_world_regd(reg)) { | ||
585 | error = regulatory_hint(hw->wiphy, reg->alpha2); | ||
586 | if (error) | ||
587 | goto err_world; | ||
588 | } | ||
589 | |||
590 | ath9k_init_leds(priv); | ||
591 | ath9k_start_rfkill_poll(priv); | ||
592 | |||
593 | return 0; | ||
594 | |||
595 | err_world: | ||
596 | ieee80211_unregister_hw(hw); | ||
597 | err_register: | ||
598 | ath9k_rx_cleanup(priv); | ||
599 | err_rx: | ||
600 | ath9k_tx_cleanup(priv); | ||
601 | err_tx: | ||
602 | /* Nothing */ | ||
603 | err_regd: | ||
604 | ath9k_deinit_priv(priv); | ||
605 | err_init: | ||
606 | return error; | ||
607 | } | ||
608 | |||
609 | int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, | ||
610 | u16 devid) | ||
611 | { | ||
612 | struct ieee80211_hw *hw; | ||
613 | struct ath9k_htc_priv *priv; | ||
614 | int ret; | ||
615 | |||
616 | hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops); | ||
617 | if (!hw) | ||
618 | return -ENOMEM; | ||
619 | |||
620 | priv = hw->priv; | ||
621 | priv->hw = hw; | ||
622 | priv->htc = htc_handle; | ||
623 | priv->dev = dev; | ||
624 | htc_handle->drv_priv = priv; | ||
625 | SET_IEEE80211_DEV(hw, priv->dev); | ||
626 | |||
627 | ret = ath9k_htc_wait_for_target(priv); | ||
628 | if (ret) | ||
629 | goto err_free; | ||
630 | |||
631 | priv->wmi = ath9k_init_wmi(priv); | ||
632 | if (!priv->wmi) { | ||
633 | ret = -EINVAL; | ||
634 | goto err_free; | ||
635 | } | ||
636 | |||
637 | ret = ath9k_init_htc_services(priv); | ||
638 | if (ret) | ||
639 | goto err_init; | ||
640 | |||
641 | ret = ath9k_init_device(priv, devid); | ||
642 | if (ret) | ||
643 | goto err_init; | ||
644 | |||
645 | return 0; | ||
646 | |||
647 | err_init: | ||
648 | ath9k_deinit_wmi(priv); | ||
649 | err_free: | ||
650 | ieee80211_free_hw(hw); | ||
651 | return ret; | ||
652 | } | ||
653 | |||
654 | void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) | ||
655 | { | ||
656 | if (htc_handle->drv_priv) { | ||
657 | ath9k_deinit_device(htc_handle->drv_priv); | ||
658 | ath9k_deinit_wmi(htc_handle->drv_priv); | ||
659 | ieee80211_free_hw(htc_handle->drv_priv->hw); | ||
660 | } | ||
661 | } | ||
662 | |||
663 | #ifdef CONFIG_PM | ||
664 | int ath9k_htc_resume(struct htc_target *htc_handle) | ||
665 | { | ||
666 | int ret; | ||
667 | |||
668 | ret = ath9k_htc_wait_for_target(htc_handle->drv_priv); | ||
669 | if (ret) | ||
670 | return ret; | ||
671 | |||
672 | ret = ath9k_init_htc_services(htc_handle->drv_priv); | ||
673 | return ret; | ||
674 | } | ||
675 | #endif | ||
676 | |||
677 | static int __init ath9k_htc_init(void) | ||
678 | { | ||
679 | int error; | ||
680 | |||
681 | error = ath9k_htc_debug_create_root(); | ||
682 | if (error < 0) { | ||
683 | printk(KERN_ERR | ||
684 | "ath9k_htc: Unable to create debugfs root: %d\n", | ||
685 | error); | ||
686 | goto err_dbg; | ||
687 | } | ||
688 | |||
689 | error = ath9k_hif_usb_init(); | ||
690 | if (error < 0) { | ||
691 | printk(KERN_ERR | ||
692 | "ath9k_htc: No USB devices found," | ||
693 | " driver not installed.\n"); | ||
694 | error = -ENODEV; | ||
695 | goto err_usb; | ||
696 | } | ||
697 | |||
698 | return 0; | ||
699 | |||
700 | err_usb: | ||
701 | ath9k_htc_debug_remove_root(); | ||
702 | err_dbg: | ||
703 | return error; | ||
704 | } | ||
705 | module_init(ath9k_htc_init); | ||
706 | |||
707 | static void __exit ath9k_htc_exit(void) | ||
708 | { | ||
709 | ath9k_hif_usb_exit(); | ||
710 | ath9k_htc_debug_remove_root(); | ||
711 | printk(KERN_INFO "ath9k_htc: Driver unloaded\n"); | ||
712 | } | ||
713 | module_exit(ath9k_htc_exit); | ||