Commit | Line | Data |
---|---|---|
95ea3627 | 1 | /* |
9c9a0d14 | 2 | Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> |
95ea3627 ID |
3 | <http://rt2x00.serialmonkey.com> |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the | |
17 | Free Software Foundation, Inc., | |
18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | /* | |
22 | Module: rt2x00lib | |
23 | Abstract: rt2x00 generic device routines. | |
24 | */ | |
25 | ||
95ea3627 ID |
26 | #include <linux/kernel.h> |
27 | #include <linux/module.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
95ea3627 ID |
29 | |
30 | #include "rt2x00.h" | |
31 | #include "rt2x00lib.h" | |
32 | ||
95ea3627 ID |
33 | /* |
34 | * Radio control handlers. | |
35 | */ | |
36 | int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev) | |
37 | { | |
38 | int status; | |
39 | ||
40 | /* | |
41 | * Don't enable the radio twice. | |
42 | * And check if the hardware button has been disabled. | |
43 | */ | |
4b9631a4 | 44 | if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
45 | return 0; |
46 | ||
837e7f24 | 47 | /* |
181d6902 | 48 | * Initialize all data queues. |
837e7f24 | 49 | */ |
798b7adb | 50 | rt2x00queue_init_queues(rt2x00dev); |
837e7f24 | 51 | |
95ea3627 ID |
52 | /* |
53 | * Enable radio. | |
54 | */ | |
a2e1d52a ID |
55 | status = |
56 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_ON); | |
95ea3627 ID |
57 | if (status) |
58 | return status; | |
59 | ||
2b08da3f ID |
60 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_ON); |
61 | ||
a2e1d52a | 62 | rt2x00leds_led_radio(rt2x00dev, true); |
61c2b682 | 63 | rt2x00led_led_activity(rt2x00dev, true); |
a2e1d52a | 64 | |
0262ab0d | 65 | set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags); |
95ea3627 ID |
66 | |
67 | /* | |
68 | * Enable RX. | |
69 | */ | |
5cbf830e | 70 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON); |
95ea3627 ID |
71 | |
72 | /* | |
73 | * Start the TX queues. | |
74 | */ | |
36d6825b | 75 | ieee80211_wake_queues(rt2x00dev->hw); |
95ea3627 ID |
76 | |
77 | return 0; | |
78 | } | |
79 | ||
80 | void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev) | |
81 | { | |
0262ab0d | 82 | if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
83 | return; |
84 | ||
95ea3627 | 85 | /* |
a2c9b652 | 86 | * Stop the TX queues in mac80211. |
95ea3627 ID |
87 | */ |
88 | ieee80211_stop_queues(rt2x00dev->hw); | |
a2c9b652 | 89 | rt2x00queue_stop_queues(rt2x00dev); |
95ea3627 ID |
90 | |
91 | /* | |
92 | * Disable RX. | |
93 | */ | |
5cbf830e | 94 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); |
95ea3627 ID |
95 | |
96 | /* | |
97 | * Disable radio. | |
98 | */ | |
99 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF); | |
2b08da3f | 100 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); |
61c2b682 | 101 | rt2x00led_led_activity(rt2x00dev, false); |
a2e1d52a | 102 | rt2x00leds_led_radio(rt2x00dev, false); |
95ea3627 ID |
103 | } |
104 | ||
5cbf830e | 105 | void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state) |
95ea3627 | 106 | { |
95ea3627 ID |
107 | /* |
108 | * When we are disabling the RX, we should also stop the link tuner. | |
109 | */ | |
5cbf830e | 110 | if (state == STATE_RADIO_RX_OFF) |
84e3196f | 111 | rt2x00link_stop_tuner(rt2x00dev); |
95ea3627 ID |
112 | |
113 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); | |
114 | ||
115 | /* | |
116 | * When we are enabling the RX, we should also start the link tuner. | |
117 | */ | |
84e3196f ID |
118 | if (state == STATE_RADIO_RX_ON) |
119 | rt2x00link_start_tuner(rt2x00dev); | |
95ea3627 ID |
120 | } |
121 | ||
6bb40dd1 ID |
122 | static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, |
123 | struct ieee80211_vif *vif) | |
5c58ee51 | 124 | { |
6bb40dd1 ID |
125 | struct rt2x00_dev *rt2x00dev = data; |
126 | struct rt2x00_intf *intf = vif_to_intf(vif); | |
6bb40dd1 ID |
127 | int delayed_flags; |
128 | ||
129 | /* | |
130 | * Copy all data we need during this action under the protection | |
131 | * of a spinlock. Otherwise race conditions might occur which results | |
132 | * into an invalid configuration. | |
133 | */ | |
134 | spin_lock(&intf->lock); | |
135 | ||
6bb40dd1 ID |
136 | delayed_flags = intf->delayed_flags; |
137 | intf->delayed_flags = 0; | |
138 | ||
139 | spin_unlock(&intf->lock); | |
140 | ||
980dfcb9 ID |
141 | /* |
142 | * It is possible the radio was disabled while the work had been | |
143 | * scheduled. If that happens we should return here immediately, | |
144 | * note that in the spinlock protected area above the delayed_flags | |
145 | * have been cleared correctly. | |
146 | */ | |
0262ab0d | 147 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
980dfcb9 ID |
148 | return; |
149 | ||
bd88a781 | 150 | if (delayed_flags & DELAYED_UPDATE_BEACON) |
a2c9b652 | 151 | rt2x00queue_update_beacon(rt2x00dev, vif, true); |
6bb40dd1 | 152 | } |
5c58ee51 | 153 | |
6bb40dd1 ID |
154 | static void rt2x00lib_intf_scheduled(struct work_struct *work) |
155 | { | |
156 | struct rt2x00_dev *rt2x00dev = | |
157 | container_of(work, struct rt2x00_dev, intf_work); | |
471b3efd JB |
158 | |
159 | /* | |
6bb40dd1 ID |
160 | * Iterate over each interface and perform the |
161 | * requested configurations. | |
471b3efd | 162 | */ |
6bb40dd1 ID |
163 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, |
164 | rt2x00lib_intf_scheduled_iter, | |
165 | rt2x00dev); | |
5c58ee51 ID |
166 | } |
167 | ||
95ea3627 ID |
168 | /* |
169 | * Interrupt context handlers. | |
170 | */ | |
6bb40dd1 ID |
171 | static void rt2x00lib_beacondone_iter(void *data, u8 *mac, |
172 | struct ieee80211_vif *vif) | |
95ea3627 | 173 | { |
6bb40dd1 | 174 | struct rt2x00_intf *intf = vif_to_intf(vif); |
95ea3627 | 175 | |
05c914fe | 176 | if (vif->type != NL80211_IFTYPE_AP && |
a07dbea2 | 177 | vif->type != NL80211_IFTYPE_ADHOC && |
ce292a64 ID |
178 | vif->type != NL80211_IFTYPE_MESH_POINT && |
179 | vif->type != NL80211_IFTYPE_WDS) | |
95ea3627 ID |
180 | return; |
181 | ||
6bb40dd1 ID |
182 | spin_lock(&intf->lock); |
183 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; | |
184 | spin_unlock(&intf->lock); | |
95ea3627 ID |
185 | } |
186 | ||
187 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) | |
188 | { | |
0262ab0d | 189 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
190 | return; |
191 | ||
633257d3 ID |
192 | ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw, |
193 | rt2x00lib_beacondone_iter, | |
194 | rt2x00dev); | |
6bb40dd1 | 195 | |
42935eca | 196 | ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work); |
95ea3627 ID |
197 | } |
198 | EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); | |
199 | ||
181d6902 ID |
200 | void rt2x00lib_txdone(struct queue_entry *entry, |
201 | struct txdone_entry_desc *txdesc) | |
95ea3627 | 202 | { |
181d6902 | 203 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
e039fa4a | 204 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); |
e6a9854b | 205 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
d74f5ba4 | 206 | enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); |
9f166171 | 207 | unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
92ed48e5 | 208 | u8 rate_idx, rate_flags, retry_rates; |
7351c6bd | 209 | u8 skbdesc_flags = skbdesc->flags; |
92ed48e5 | 210 | unsigned int i; |
2e27cff8 | 211 | bool success; |
d74f5ba4 | 212 | |
9f166171 ID |
213 | /* |
214 | * Remove L2 padding which was added during | |
215 | */ | |
216 | if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags)) | |
daee6c09 | 217 | rt2x00queue_remove_l2pad(entry->skb, header_length); |
9f166171 | 218 | |
2bb057d0 ID |
219 | /* |
220 | * If the IV/EIV data was stripped from the frame before it was | |
221 | * passed to the hardware, we should now reinsert it again because | |
77c2061d | 222 | * mac80211 will expect the same data to be present it the |
2bb057d0 ID |
223 | * frame as it was passed to us. |
224 | */ | |
225 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
9f166171 | 226 | rt2x00crypto_tx_insert_iv(entry->skb, header_length); |
2bb057d0 | 227 | |
e039fa4a JB |
228 | /* |
229 | * Send frame to debugfs immediately, after this call is completed | |
230 | * we are going to overwrite the skb->cb array. | |
231 | */ | |
232 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb); | |
95ea3627 ID |
233 | |
234 | /* | |
2e27cff8 | 235 | * Determine if the frame has been successfully transmitted. |
95ea3627 | 236 | */ |
2e27cff8 | 237 | success = |
ce4c45e0 | 238 | test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
fd6dcb88 | 239 | test_bit(TXDONE_UNKNOWN, &txdesc->flags); |
2e27cff8 ID |
240 | |
241 | /* | |
242 | * Update TX statistics. | |
243 | */ | |
244 | rt2x00dev->link.qual.tx_success += success; | |
245 | rt2x00dev->link.qual.tx_failed += !success; | |
95ea3627 | 246 | |
e6a9854b JB |
247 | rate_idx = skbdesc->tx_rate_idx; |
248 | rate_flags = skbdesc->tx_rate_flags; | |
92ed48e5 BP |
249 | retry_rates = test_bit(TXDONE_FALLBACK, &txdesc->flags) ? |
250 | (txdesc->retry + 1) : 1; | |
e6a9854b | 251 | |
181d6902 ID |
252 | /* |
253 | * Initialize TX status | |
254 | */ | |
e039fa4a JB |
255 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
256 | tx_info->status.ack_signal = 0; | |
92ed48e5 BP |
257 | |
258 | /* | |
259 | * Frame was send with retries, hardware tried | |
260 | * different rates to send out the frame, at each | |
3d2bc103 HS |
261 | * retry it lowered the rate 1 step except when the |
262 | * lowest rate was used. | |
92ed48e5 BP |
263 | */ |
264 | for (i = 0; i < retry_rates && i < IEEE80211_TX_MAX_RATES; i++) { | |
265 | tx_info->status.rates[i].idx = rate_idx - i; | |
266 | tx_info->status.rates[i].flags = rate_flags; | |
3d2bc103 HS |
267 | |
268 | if (rate_idx - i == 0) { | |
269 | /* | |
270 | * The lowest rate (index 0) was used until the | |
271 | * number of max retries was reached. | |
272 | */ | |
273 | tx_info->status.rates[i].count = retry_rates - i; | |
274 | i++; | |
275 | break; | |
276 | } | |
92ed48e5 BP |
277 | tx_info->status.rates[i].count = 1; |
278 | } | |
2e27cff8 | 279 | if (i < (IEEE80211_TX_MAX_RATES - 1)) |
92ed48e5 | 280 | tx_info->status.rates[i].idx = -1; /* terminate */ |
181d6902 | 281 | |
e039fa4a | 282 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
2e27cff8 | 283 | if (success) |
e039fa4a | 284 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
2e27cff8 | 285 | else |
181d6902 | 286 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
95ea3627 ID |
287 | } |
288 | ||
1df90809 HS |
289 | /* |
290 | * Every single frame has it's own tx status, hence report | |
291 | * every frame as ampdu of size 1. | |
292 | * | |
293 | * TODO: if we can find out how many frames were aggregated | |
294 | * by the hw we could provide the real ampdu_len to mac80211 | |
295 | * which would allow the rc algorithm to better decide on | |
296 | * which rates are suitable. | |
297 | */ | |
298 | if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) { | |
299 | tx_info->flags |= IEEE80211_TX_STAT_AMPDU; | |
300 | tx_info->status.ampdu_len = 1; | |
301 | tx_info->status.ampdu_ack_len = success ? 1 : 0; | |
302 | } | |
303 | ||
e6a9854b | 304 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
2e27cff8 | 305 | if (success) |
181d6902 | 306 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
2e27cff8 | 307 | else |
181d6902 | 308 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
95ea3627 ID |
309 | } |
310 | ||
311 | /* | |
7351c6bd JB |
312 | * Only send the status report to mac80211 when it's a frame |
313 | * that originated in mac80211. If this was a extra frame coming | |
314 | * through a mac80211 library call (RTS/CTS) then we should not | |
315 | * send the status report back. | |
95ea3627 | 316 | */ |
7351c6bd | 317 | if (!(skbdesc_flags & SKBDESC_NOT_MAC80211)) |
e039fa4a | 318 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); |
baf26a7e | 319 | else |
fb55f4d1 | 320 | dev_kfree_skb_irq(entry->skb); |
d74f5ba4 ID |
321 | |
322 | /* | |
323 | * Make this entry available for reuse. | |
324 | */ | |
95ea3627 | 325 | entry->skb = NULL; |
d74f5ba4 ID |
326 | entry->flags = 0; |
327 | ||
798b7adb | 328 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 | 329 | |
0262ab0d | 330 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
d74f5ba4 ID |
331 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
332 | ||
333 | /* | |
334 | * If the data queue was below the threshold before the txdone | |
335 | * handler we must make sure the packet queue in the mac80211 stack | |
336 | * is reenabled when the txdone handler has finished. | |
337 | */ | |
338 | if (!rt2x00queue_threshold(entry->queue)) | |
339 | ieee80211_wake_queue(rt2x00dev->hw, qid); | |
95ea3627 ID |
340 | } |
341 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); | |
342 | ||
35f00cfc ID |
343 | static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev, |
344 | struct rxdone_entry_desc *rxdesc) | |
345 | { | |
346 | struct ieee80211_supported_band *sband; | |
347 | const struct rt2x00_rate *rate; | |
348 | unsigned int i; | |
349 | int signal; | |
350 | int type; | |
351 | ||
352 | /* | |
353 | * For non-HT rates the MCS value needs to contain the | |
354 | * actually used rate modulation (CCK or OFDM). | |
355 | */ | |
356 | if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS) | |
357 | signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal); | |
358 | else | |
359 | signal = rxdesc->signal; | |
360 | ||
361 | type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK); | |
362 | ||
363 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; | |
364 | for (i = 0; i < sband->n_bitrates; i++) { | |
365 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); | |
366 | ||
367 | if (((type == RXDONE_SIGNAL_PLCP) && | |
368 | (rate->plcp == signal)) || | |
369 | ((type == RXDONE_SIGNAL_BITRATE) && | |
370 | (rate->bitrate == signal)) || | |
371 | ((type == RXDONE_SIGNAL_MCS) && | |
372 | (rate->mcs == signal))) { | |
373 | return i; | |
374 | } | |
375 | } | |
376 | ||
377 | WARNING(rt2x00dev, "Frame received with unrecognized signal, " | |
378 | "signal=0x%.4x, type=%d.\n", signal, type); | |
379 | return 0; | |
380 | } | |
381 | ||
c4da0048 GW |
382 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
383 | struct queue_entry *entry) | |
95ea3627 | 384 | { |
c4da0048 GW |
385 | struct rxdone_entry_desc rxdesc; |
386 | struct sk_buff *skb; | |
95ea3627 | 387 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
2bb057d0 | 388 | unsigned int header_length; |
35f00cfc | 389 | int rate_idx; |
c4da0048 GW |
390 | /* |
391 | * Allocate a new sk_buffer. If no new buffer available, drop the | |
392 | * received frame and reuse the existing buffer. | |
393 | */ | |
394 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); | |
395 | if (!skb) | |
396 | return; | |
397 | ||
398 | /* | |
399 | * Unmap the skb. | |
400 | */ | |
401 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
402 | ||
403 | /* | |
404 | * Extract the RXD details. | |
405 | */ | |
406 | memset(&rxdesc, 0, sizeof(rxdesc)); | |
407 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); | |
95ea3627 | 408 | |
239c249d GW |
409 | /* |
410 | * The data behind the ieee80211 header must be | |
a9f853dd | 411 | * aligned on a 4 byte boundary. |
239c249d | 412 | */ |
2bb057d0 | 413 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
239c249d | 414 | |
2bb057d0 ID |
415 | /* |
416 | * Hardware might have stripped the IV/EIV/ICV data, | |
417 | * in that case it is possible that the data was | |
3ad2f3fb | 418 | * provided separately (through hardware descriptor) |
2bb057d0 ID |
419 | * in which case we should reinsert the data into the frame. |
420 | */ | |
74415edb | 421 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
9f166171 | 422 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) |
daee6c09 | 423 | rt2x00crypto_rx_insert_iv(entry->skb, header_length, |
9f166171 | 424 | &rxdesc); |
b7340833 GW |
425 | else if (header_length && |
426 | (rxdesc.size > header_length) && | |
427 | (rxdesc.dev_flags & RXDONE_L2PAD)) | |
daee6c09 | 428 | rt2x00queue_remove_l2pad(entry->skb, header_length); |
9f166171 | 429 | else |
daee6c09 | 430 | rt2x00queue_align_payload(entry->skb, header_length); |
239c249d | 431 | |
1398d458 AB |
432 | /* Trim buffer to correct size */ |
433 | skb_trim(entry->skb, rxdesc.size); | |
434 | ||
95ea3627 | 435 | /* |
35f00cfc ID |
436 | * Check if the frame was received using HT. In that case, |
437 | * the rate is the MCS index and should be passed to mac80211 | |
438 | * directly. Otherwise we need to translate the signal to | |
439 | * the correct bitrate index. | |
95ea3627 | 440 | */ |
35f00cfc ID |
441 | if (rxdesc.rate_mode == RATE_MODE_CCK || |
442 | rxdesc.rate_mode == RATE_MODE_OFDM) { | |
443 | rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc); | |
444 | } else { | |
445 | rxdesc.flags |= RX_FLAG_HT; | |
446 | rate_idx = rxdesc.signal; | |
866a0503 ID |
447 | } |
448 | ||
61af43c5 | 449 | /* |
84e3196f | 450 | * Update extra components |
61af43c5 | 451 | */ |
84e3196f ID |
452 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
453 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); | |
69f81a2c | 454 | |
ae73e58e | 455 | rx_status->mactime = rxdesc.timestamp; |
35f00cfc | 456 | rx_status->rate_idx = rate_idx; |
c4da0048 GW |
457 | rx_status->signal = rxdesc.rssi; |
458 | rx_status->flag = rxdesc.flags; | |
69f81a2c | 459 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
95ea3627 ID |
460 | |
461 | /* | |
181d6902 ID |
462 | * Send frame to mac80211 & debugfs. |
463 | * mac80211 will clean up the skb structure. | |
95ea3627 | 464 | */ |
5a6e5999 | 465 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
f1d58c25 JB |
466 | memcpy(IEEE80211_SKB_RXCB(entry->skb), rx_status, sizeof(*rx_status)); |
467 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb); | |
c4da0048 GW |
468 | |
469 | /* | |
470 | * Replace the skb with the freshly allocated one. | |
471 | */ | |
472 | entry->skb = skb; | |
d74f5ba4 ID |
473 | entry->flags = 0; |
474 | ||
798b7adb | 475 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 ID |
476 | |
477 | rt2x00queue_index_inc(entry->queue, Q_INDEX); | |
95ea3627 ID |
478 | } |
479 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); | |
480 | ||
95ea3627 ID |
481 | /* |
482 | * Driver initialization handlers. | |
483 | */ | |
70e2fed4 ID |
484 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
485 | { | |
3d8606a6 | 486 | .flags = DEV_RATE_CCK, |
70e2fed4 | 487 | .bitrate = 10, |
aa776721 | 488 | .ratemask = BIT(0), |
70e2fed4 | 489 | .plcp = 0x00, |
35f00cfc | 490 | .mcs = RATE_MCS(RATE_MODE_CCK, 0), |
70e2fed4 ID |
491 | }, |
492 | { | |
3d8606a6 | 493 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 494 | .bitrate = 20, |
aa776721 | 495 | .ratemask = BIT(1), |
70e2fed4 | 496 | .plcp = 0x01, |
35f00cfc | 497 | .mcs = RATE_MCS(RATE_MODE_CCK, 1), |
70e2fed4 ID |
498 | }, |
499 | { | |
3d8606a6 | 500 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 501 | .bitrate = 55, |
aa776721 | 502 | .ratemask = BIT(2), |
70e2fed4 | 503 | .plcp = 0x02, |
35f00cfc | 504 | .mcs = RATE_MCS(RATE_MODE_CCK, 2), |
70e2fed4 ID |
505 | }, |
506 | { | |
3d8606a6 | 507 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 508 | .bitrate = 110, |
aa776721 | 509 | .ratemask = BIT(3), |
70e2fed4 | 510 | .plcp = 0x03, |
35f00cfc | 511 | .mcs = RATE_MCS(RATE_MODE_CCK, 3), |
70e2fed4 ID |
512 | }, |
513 | { | |
3d8606a6 | 514 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 515 | .bitrate = 60, |
aa776721 | 516 | .ratemask = BIT(4), |
70e2fed4 | 517 | .plcp = 0x0b, |
35f00cfc | 518 | .mcs = RATE_MCS(RATE_MODE_OFDM, 0), |
70e2fed4 ID |
519 | }, |
520 | { | |
521 | .flags = DEV_RATE_OFDM, | |
522 | .bitrate = 90, | |
aa776721 | 523 | .ratemask = BIT(5), |
70e2fed4 | 524 | .plcp = 0x0f, |
35f00cfc | 525 | .mcs = RATE_MCS(RATE_MODE_OFDM, 1), |
70e2fed4 ID |
526 | }, |
527 | { | |
3d8606a6 | 528 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 529 | .bitrate = 120, |
aa776721 | 530 | .ratemask = BIT(6), |
70e2fed4 | 531 | .plcp = 0x0a, |
35f00cfc | 532 | .mcs = RATE_MCS(RATE_MODE_OFDM, 2), |
70e2fed4 ID |
533 | }, |
534 | { | |
535 | .flags = DEV_RATE_OFDM, | |
536 | .bitrate = 180, | |
aa776721 | 537 | .ratemask = BIT(7), |
70e2fed4 | 538 | .plcp = 0x0e, |
35f00cfc | 539 | .mcs = RATE_MCS(RATE_MODE_OFDM, 3), |
70e2fed4 ID |
540 | }, |
541 | { | |
3d8606a6 | 542 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 543 | .bitrate = 240, |
aa776721 | 544 | .ratemask = BIT(8), |
70e2fed4 | 545 | .plcp = 0x09, |
35f00cfc | 546 | .mcs = RATE_MCS(RATE_MODE_OFDM, 4), |
70e2fed4 ID |
547 | }, |
548 | { | |
549 | .flags = DEV_RATE_OFDM, | |
550 | .bitrate = 360, | |
aa776721 | 551 | .ratemask = BIT(9), |
70e2fed4 | 552 | .plcp = 0x0d, |
35f00cfc | 553 | .mcs = RATE_MCS(RATE_MODE_OFDM, 5), |
70e2fed4 ID |
554 | }, |
555 | { | |
556 | .flags = DEV_RATE_OFDM, | |
557 | .bitrate = 480, | |
aa776721 | 558 | .ratemask = BIT(10), |
70e2fed4 | 559 | .plcp = 0x08, |
35f00cfc | 560 | .mcs = RATE_MCS(RATE_MODE_OFDM, 6), |
70e2fed4 ID |
561 | }, |
562 | { | |
563 | .flags = DEV_RATE_OFDM, | |
564 | .bitrate = 540, | |
aa776721 | 565 | .ratemask = BIT(11), |
70e2fed4 | 566 | .plcp = 0x0c, |
35f00cfc | 567 | .mcs = RATE_MCS(RATE_MODE_OFDM, 7), |
70e2fed4 ID |
568 | }, |
569 | }; | |
570 | ||
95ea3627 ID |
571 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
572 | const int channel, const int tx_power, | |
573 | const int value) | |
574 | { | |
f2a3c7f5 | 575 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
8318d78a JB |
576 | entry->hw_value = value; |
577 | entry->max_power = tx_power; | |
578 | entry->max_antenna_gain = 0xff; | |
95ea3627 ID |
579 | } |
580 | ||
581 | static void rt2x00lib_rate(struct ieee80211_rate *entry, | |
70e2fed4 | 582 | const u16 index, const struct rt2x00_rate *rate) |
95ea3627 | 583 | { |
70e2fed4 ID |
584 | entry->flags = 0; |
585 | entry->bitrate = rate->bitrate; | |
3ea96463 ID |
586 | entry->hw_value =index; |
587 | entry->hw_value_short = index; | |
70e2fed4 | 588 | |
3ea96463 | 589 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
70e2fed4 | 590 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
95ea3627 ID |
591 | } |
592 | ||
593 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, | |
594 | struct hw_mode_spec *spec) | |
595 | { | |
596 | struct ieee80211_hw *hw = rt2x00dev->hw; | |
95ea3627 ID |
597 | struct ieee80211_channel *channels; |
598 | struct ieee80211_rate *rates; | |
31562e80 | 599 | unsigned int num_rates; |
95ea3627 | 600 | unsigned int i; |
95ea3627 | 601 | |
31562e80 ID |
602 | num_rates = 0; |
603 | if (spec->supported_rates & SUPPORT_RATE_CCK) | |
604 | num_rates += 4; | |
605 | if (spec->supported_rates & SUPPORT_RATE_OFDM) | |
606 | num_rates += 8; | |
95ea3627 ID |
607 | |
608 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); | |
609 | if (!channels) | |
8318d78a | 610 | return -ENOMEM; |
95ea3627 | 611 | |
31562e80 | 612 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
95ea3627 ID |
613 | if (!rates) |
614 | goto exit_free_channels; | |
615 | ||
616 | /* | |
617 | * Initialize Rate list. | |
618 | */ | |
31562e80 | 619 | for (i = 0; i < num_rates; i++) |
8f5fa7f0 | 620 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
95ea3627 ID |
621 | |
622 | /* | |
623 | * Initialize Channel list. | |
624 | */ | |
625 | for (i = 0; i < spec->num_channels; i++) { | |
95ea3627 | 626 | rt2x00lib_channel(&channels[i], |
8c5e7a5f ID |
627 | spec->channels[i].channel, |
628 | spec->channels_info[i].tx_power1, i); | |
95ea3627 ID |
629 | } |
630 | ||
631 | /* | |
31562e80 | 632 | * Intitialize 802.11b, 802.11g |
95ea3627 | 633 | * Rates: CCK, OFDM. |
8318d78a | 634 | * Channels: 2.4 GHz |
95ea3627 | 635 | */ |
47ac2683 | 636 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
31562e80 ID |
637 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
638 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; | |
639 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; | |
640 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; | |
641 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
642 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; | |
35f00cfc ID |
643 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap, |
644 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
645 | } |
646 | ||
647 | /* | |
648 | * Intitialize 802.11a | |
649 | * Rates: OFDM. | |
650 | * Channels: OFDM, UNII, HiperLAN2. | |
651 | */ | |
47ac2683 | 652 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
31562e80 ID |
653 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
654 | spec->num_channels - 14; | |
655 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = | |
656 | num_rates - 4; | |
657 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; | |
658 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; | |
659 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
660 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; | |
35f00cfc ID |
661 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap, |
662 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
663 | } |
664 | ||
95ea3627 ID |
665 | return 0; |
666 | ||
8318d78a | 667 | exit_free_channels: |
95ea3627 | 668 | kfree(channels); |
95ea3627 ID |
669 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
670 | return -ENOMEM; | |
671 | } | |
672 | ||
673 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) | |
674 | { | |
0262ab0d | 675 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
95ea3627 ID |
676 | ieee80211_unregister_hw(rt2x00dev->hw); |
677 | ||
8318d78a JB |
678 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
679 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); | |
680 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); | |
681 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
682 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
95ea3627 | 683 | } |
8c5e7a5f ID |
684 | |
685 | kfree(rt2x00dev->spec.channels_info); | |
95ea3627 ID |
686 | } |
687 | ||
688 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) | |
689 | { | |
690 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
691 | int status; | |
692 | ||
0262ab0d ID |
693 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
694 | return 0; | |
695 | ||
95ea3627 ID |
696 | /* |
697 | * Initialize HW modes. | |
698 | */ | |
699 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); | |
700 | if (status) | |
701 | return status; | |
702 | ||
61448f88 GW |
703 | /* |
704 | * Initialize HW fields. | |
705 | */ | |
706 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; | |
707 | ||
e6218cc4 GW |
708 | /* |
709 | * Initialize extra TX headroom required. | |
710 | */ | |
7a4a77b7 GW |
711 | rt2x00dev->hw->extra_tx_headroom = |
712 | max_t(unsigned int, IEEE80211_TX_STATUS_HEADROOM, | |
713 | rt2x00dev->ops->extra_tx_headroom); | |
714 | ||
715 | /* | |
716 | * Take TX headroom required for alignment into account. | |
717 | */ | |
718 | if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags)) | |
719 | rt2x00dev->hw->extra_tx_headroom += RT2X00_L2PAD_SIZE; | |
720 | else if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags)) | |
721 | rt2x00dev->hw->extra_tx_headroom += RT2X00_ALIGN_SIZE; | |
e6218cc4 | 722 | |
95ea3627 ID |
723 | /* |
724 | * Register HW. | |
725 | */ | |
726 | status = ieee80211_register_hw(rt2x00dev->hw); | |
f05faa31 | 727 | if (status) |
95ea3627 | 728 | return status; |
95ea3627 | 729 | |
0262ab0d | 730 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
95ea3627 ID |
731 | |
732 | return 0; | |
733 | } | |
734 | ||
735 | /* | |
736 | * Initialization/uninitialization handlers. | |
737 | */ | |
e37ea213 | 738 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 739 | { |
0262ab0d | 740 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
741 | return; |
742 | ||
743 | /* | |
1682fe6d | 744 | * Unregister extra components. |
95ea3627 ID |
745 | */ |
746 | rt2x00rfkill_unregister(rt2x00dev); | |
747 | ||
748 | /* | |
749 | * Allow the HW to uninitialize. | |
750 | */ | |
751 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); | |
752 | ||
753 | /* | |
181d6902 | 754 | * Free allocated queue entries. |
95ea3627 | 755 | */ |
181d6902 | 756 | rt2x00queue_uninitialize(rt2x00dev); |
95ea3627 ID |
757 | } |
758 | ||
e37ea213 | 759 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
760 | { |
761 | int status; | |
762 | ||
0262ab0d | 763 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
764 | return 0; |
765 | ||
766 | /* | |
181d6902 | 767 | * Allocate all queue entries. |
95ea3627 | 768 | */ |
181d6902 ID |
769 | status = rt2x00queue_initialize(rt2x00dev); |
770 | if (status) | |
95ea3627 | 771 | return status; |
95ea3627 ID |
772 | |
773 | /* | |
774 | * Initialize the device. | |
775 | */ | |
776 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); | |
ed499983 ID |
777 | if (status) { |
778 | rt2x00queue_uninitialize(rt2x00dev); | |
779 | return status; | |
780 | } | |
95ea3627 | 781 | |
0262ab0d | 782 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
95ea3627 ID |
783 | |
784 | /* | |
1682fe6d | 785 | * Register the extra components. |
95ea3627 | 786 | */ |
1682fe6d | 787 | rt2x00rfkill_register(rt2x00dev); |
95ea3627 ID |
788 | |
789 | return 0; | |
95ea3627 ID |
790 | } |
791 | ||
e37ea213 ID |
792 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
793 | { | |
794 | int retval; | |
795 | ||
0262ab0d | 796 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
797 | return 0; |
798 | ||
799 | /* | |
800 | * If this is the first interface which is added, | |
801 | * we should load the firmware now. | |
802 | */ | |
9404ef34 ID |
803 | retval = rt2x00lib_load_firmware(rt2x00dev); |
804 | if (retval) | |
805 | return retval; | |
e37ea213 ID |
806 | |
807 | /* | |
808 | * Initialize the device. | |
809 | */ | |
810 | retval = rt2x00lib_initialize(rt2x00dev); | |
811 | if (retval) | |
812 | return retval; | |
813 | ||
6bb40dd1 ID |
814 | rt2x00dev->intf_ap_count = 0; |
815 | rt2x00dev->intf_sta_count = 0; | |
816 | rt2x00dev->intf_associated = 0; | |
817 | ||
bdfa500b ID |
818 | /* Enable the radio */ |
819 | retval = rt2x00lib_enable_radio(rt2x00dev); | |
820 | if (retval) { | |
821 | rt2x00queue_uninitialize(rt2x00dev); | |
822 | return retval; | |
823 | } | |
824 | ||
0262ab0d | 825 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
e37ea213 ID |
826 | |
827 | return 0; | |
828 | } | |
829 | ||
830 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) | |
831 | { | |
0262ab0d | 832 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
833 | return; |
834 | ||
835 | /* | |
836 | * Perhaps we can add something smarter here, | |
837 | * but for now just disabling the radio should do. | |
838 | */ | |
839 | rt2x00lib_disable_radio(rt2x00dev); | |
840 | ||
6bb40dd1 ID |
841 | rt2x00dev->intf_ap_count = 0; |
842 | rt2x00dev->intf_sta_count = 0; | |
843 | rt2x00dev->intf_associated = 0; | |
e37ea213 ID |
844 | } |
845 | ||
95ea3627 ID |
846 | /* |
847 | * driver allocation handlers. | |
848 | */ | |
95ea3627 ID |
849 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
850 | { | |
851 | int retval = -ENOMEM; | |
852 | ||
8ff48a8b ID |
853 | mutex_init(&rt2x00dev->csr_mutex); |
854 | ||
66f84d65 SC |
855 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
856 | ||
6bb40dd1 ID |
857 | /* |
858 | * Make room for rt2x00_intf inside the per-interface | |
859 | * structure ieee80211_vif. | |
860 | */ | |
861 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); | |
862 | ||
3514a441 ID |
863 | /* |
864 | * Determine which operating modes are supported, all modes | |
865 | * which require beaconing, depend on the availability of | |
866 | * beacon entries. | |
867 | */ | |
868 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
869 | if (rt2x00dev->ops->bcn->entry_num > 0) | |
870 | rt2x00dev->hw->wiphy->interface_modes |= | |
871 | BIT(NL80211_IFTYPE_ADHOC) | | |
a07dbea2 | 872 | BIT(NL80211_IFTYPE_AP) | |
ce292a64 ID |
873 | BIT(NL80211_IFTYPE_MESH_POINT) | |
874 | BIT(NL80211_IFTYPE_WDS); | |
f59ac048 | 875 | |
95ea3627 ID |
876 | /* |
877 | * Let the driver probe the device to detect the capabilities. | |
878 | */ | |
879 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); | |
880 | if (retval) { | |
881 | ERROR(rt2x00dev, "Failed to allocate device.\n"); | |
882 | goto exit; | |
883 | } | |
884 | ||
885 | /* | |
886 | * Initialize configuration work. | |
887 | */ | |
6bb40dd1 | 888 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
95ea3627 | 889 | |
95ea3627 | 890 | /* |
181d6902 | 891 | * Allocate queue array. |
95ea3627 | 892 | */ |
181d6902 | 893 | retval = rt2x00queue_allocate(rt2x00dev); |
95ea3627 ID |
894 | if (retval) |
895 | goto exit; | |
896 | ||
897 | /* | |
898 | * Initialize ieee80211 structure. | |
899 | */ | |
900 | retval = rt2x00lib_probe_hw(rt2x00dev); | |
901 | if (retval) { | |
902 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); | |
903 | goto exit; | |
904 | } | |
905 | ||
a9450b70 | 906 | /* |
1682fe6d | 907 | * Register extra components. |
a9450b70 | 908 | */ |
84e3196f | 909 | rt2x00link_register(rt2x00dev); |
a9450b70 | 910 | rt2x00leds_register(rt2x00dev); |
95ea3627 ID |
911 | rt2x00debug_register(rt2x00dev); |
912 | ||
913 | return 0; | |
914 | ||
915 | exit: | |
916 | rt2x00lib_remove_dev(rt2x00dev); | |
917 | ||
918 | return retval; | |
919 | } | |
920 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); | |
921 | ||
922 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) | |
923 | { | |
0262ab0d | 924 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 925 | |
95ea3627 ID |
926 | /* |
927 | * Disable radio. | |
928 | */ | |
929 | rt2x00lib_disable_radio(rt2x00dev); | |
930 | ||
d8cc8926 PR |
931 | /* |
932 | * Stop all work. | |
933 | */ | |
d8cc8926 PR |
934 | cancel_work_sync(&rt2x00dev->intf_work); |
935 | ||
95ea3627 ID |
936 | /* |
937 | * Uninitialize device. | |
938 | */ | |
939 | rt2x00lib_uninitialize(rt2x00dev); | |
940 | ||
941 | /* | |
1682fe6d | 942 | * Free extra components |
95ea3627 ID |
943 | */ |
944 | rt2x00debug_deregister(rt2x00dev); | |
a9450b70 ID |
945 | rt2x00leds_unregister(rt2x00dev); |
946 | ||
95ea3627 ID |
947 | /* |
948 | * Free ieee80211_hw memory. | |
949 | */ | |
950 | rt2x00lib_remove_hw(rt2x00dev); | |
951 | ||
952 | /* | |
953 | * Free firmware image. | |
954 | */ | |
955 | rt2x00lib_free_firmware(rt2x00dev); | |
956 | ||
957 | /* | |
181d6902 | 958 | * Free queue structures. |
95ea3627 | 959 | */ |
181d6902 | 960 | rt2x00queue_free(rt2x00dev); |
95ea3627 ID |
961 | } |
962 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); | |
963 | ||
964 | /* | |
965 | * Device state handlers | |
966 | */ | |
967 | #ifdef CONFIG_PM | |
968 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) | |
969 | { | |
95ea3627 | 970 | NOTICE(rt2x00dev, "Going to sleep.\n"); |
066cb637 ID |
971 | |
972 | /* | |
07126127 | 973 | * Prevent mac80211 from accessing driver while suspended. |
066cb637 | 974 | */ |
07126127 ID |
975 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) |
976 | return 0; | |
95ea3627 ID |
977 | |
978 | /* | |
07126127 | 979 | * Cleanup as much as possible. |
95ea3627 | 980 | */ |
95ea3627 | 981 | rt2x00lib_uninitialize(rt2x00dev); |
1682fe6d ID |
982 | |
983 | /* | |
984 | * Suspend/disable extra components. | |
985 | */ | |
a9450b70 | 986 | rt2x00leds_suspend(rt2x00dev); |
95ea3627 ID |
987 | rt2x00debug_deregister(rt2x00dev); |
988 | ||
989 | /* | |
9896322a ID |
990 | * Set device mode to sleep for power management, |
991 | * on some hardware this call seems to consistently fail. | |
992 | * From the specifications it is hard to tell why it fails, | |
993 | * and if this is a "bad thing". | |
994 | * Overall it is safe to just ignore the failure and | |
995 | * continue suspending. The only downside is that the | |
996 | * device will not be in optimal power save mode, but with | |
997 | * the radio and the other components already disabled the | |
998 | * device is as good as disabled. | |
95ea3627 | 999 | */ |
07126127 | 1000 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP)) |
9896322a ID |
1001 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
1002 | "continue suspending.\n"); | |
95ea3627 ID |
1003 | |
1004 | return 0; | |
1005 | } | |
1006 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); | |
1007 | ||
1008 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) | |
1009 | { | |
95ea3627 | 1010 | NOTICE(rt2x00dev, "Waking up.\n"); |
95ea3627 ID |
1011 | |
1012 | /* | |
1682fe6d | 1013 | * Restore/enable extra components. |
95ea3627 ID |
1014 | */ |
1015 | rt2x00debug_register(rt2x00dev); | |
a9450b70 | 1016 | rt2x00leds_resume(rt2x00dev); |
95ea3627 | 1017 | |
e37ea213 ID |
1018 | /* |
1019 | * We are ready again to receive requests from mac80211. | |
1020 | */ | |
0262ab0d | 1021 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
e37ea213 | 1022 | |
95ea3627 | 1023 | return 0; |
95ea3627 ID |
1024 | } |
1025 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); | |
1026 | #endif /* CONFIG_PM */ | |
1027 | ||
1028 | /* | |
1029 | * rt2x00lib module information. | |
1030 | */ | |
1031 | MODULE_AUTHOR(DRV_PROJECT); | |
1032 | MODULE_VERSION(DRV_VERSION); | |
1033 | MODULE_DESCRIPTION("rt2x00 library"); | |
1034 | MODULE_LICENSE("GPL"); |