Commit | Line | Data |
---|---|---|
95ea3627 | 1 | /* |
4e54c711 | 2 | Copyright (C) 2004 - 2009 rt2x00 SourceForge Project |
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> | |
28 | ||
29 | #include "rt2x00.h" | |
30 | #include "rt2x00lib.h" | |
31 | ||
95ea3627 ID |
32 | /* |
33 | * Radio control handlers. | |
34 | */ | |
35 | int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev) | |
36 | { | |
37 | int status; | |
38 | ||
39 | /* | |
40 | * Don't enable the radio twice. | |
41 | * And check if the hardware button has been disabled. | |
42 | */ | |
4b9631a4 | 43 | if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
44 | return 0; |
45 | ||
837e7f24 | 46 | /* |
181d6902 | 47 | * Initialize all data queues. |
837e7f24 | 48 | */ |
798b7adb | 49 | rt2x00queue_init_queues(rt2x00dev); |
837e7f24 | 50 | |
95ea3627 ID |
51 | /* |
52 | * Enable radio. | |
53 | */ | |
a2e1d52a ID |
54 | status = |
55 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_ON); | |
95ea3627 ID |
56 | if (status) |
57 | return status; | |
58 | ||
2b08da3f ID |
59 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_ON); |
60 | ||
a2e1d52a | 61 | rt2x00leds_led_radio(rt2x00dev, true); |
61c2b682 | 62 | rt2x00led_led_activity(rt2x00dev, true); |
a2e1d52a | 63 | |
0262ab0d | 64 | set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags); |
95ea3627 ID |
65 | |
66 | /* | |
67 | * Enable RX. | |
68 | */ | |
5cbf830e | 69 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON); |
95ea3627 ID |
70 | |
71 | /* | |
72 | * Start the TX queues. | |
73 | */ | |
36d6825b | 74 | ieee80211_wake_queues(rt2x00dev->hw); |
95ea3627 ID |
75 | |
76 | return 0; | |
77 | } | |
78 | ||
79 | void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev) | |
80 | { | |
0262ab0d | 81 | if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
82 | return; |
83 | ||
95ea3627 | 84 | /* |
a2c9b652 | 85 | * Stop the TX queues in mac80211. |
95ea3627 ID |
86 | */ |
87 | ieee80211_stop_queues(rt2x00dev->hw); | |
a2c9b652 | 88 | rt2x00queue_stop_queues(rt2x00dev); |
95ea3627 ID |
89 | |
90 | /* | |
91 | * Disable RX. | |
92 | */ | |
5cbf830e | 93 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); |
95ea3627 ID |
94 | |
95 | /* | |
96 | * Disable radio. | |
97 | */ | |
98 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF); | |
2b08da3f | 99 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); |
61c2b682 | 100 | rt2x00led_led_activity(rt2x00dev, false); |
a2e1d52a | 101 | rt2x00leds_led_radio(rt2x00dev, false); |
95ea3627 ID |
102 | } |
103 | ||
5cbf830e | 104 | void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state) |
95ea3627 | 105 | { |
95ea3627 ID |
106 | /* |
107 | * When we are disabling the RX, we should also stop the link tuner. | |
108 | */ | |
5cbf830e | 109 | if (state == STATE_RADIO_RX_OFF) |
84e3196f | 110 | rt2x00link_stop_tuner(rt2x00dev); |
95ea3627 ID |
111 | |
112 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); | |
113 | ||
114 | /* | |
115 | * When we are enabling the RX, we should also start the link tuner. | |
116 | */ | |
84e3196f ID |
117 | if (state == STATE_RADIO_RX_ON) |
118 | rt2x00link_start_tuner(rt2x00dev); | |
95ea3627 ID |
119 | } |
120 | ||
4150c572 JB |
121 | static void rt2x00lib_packetfilter_scheduled(struct work_struct *work) |
122 | { | |
123 | struct rt2x00_dev *rt2x00dev = | |
124 | container_of(work, struct rt2x00_dev, filter_work); | |
5886d0db | 125 | |
133adf08 | 126 | rt2x00dev->ops->lib->config_filter(rt2x00dev, rt2x00dev->packet_filter); |
4150c572 JB |
127 | } |
128 | ||
6bb40dd1 ID |
129 | static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, |
130 | struct ieee80211_vif *vif) | |
5c58ee51 | 131 | { |
6bb40dd1 ID |
132 | struct rt2x00_dev *rt2x00dev = data; |
133 | struct rt2x00_intf *intf = vif_to_intf(vif); | |
6bb40dd1 ID |
134 | struct ieee80211_bss_conf conf; |
135 | int delayed_flags; | |
136 | ||
137 | /* | |
138 | * Copy all data we need during this action under the protection | |
139 | * of a spinlock. Otherwise race conditions might occur which results | |
140 | * into an invalid configuration. | |
141 | */ | |
142 | spin_lock(&intf->lock); | |
143 | ||
c3fd7b41 | 144 | memcpy(&conf, &vif->bss_conf, sizeof(conf)); |
6bb40dd1 ID |
145 | delayed_flags = intf->delayed_flags; |
146 | intf->delayed_flags = 0; | |
147 | ||
148 | spin_unlock(&intf->lock); | |
149 | ||
980dfcb9 ID |
150 | /* |
151 | * It is possible the radio was disabled while the work had been | |
152 | * scheduled. If that happens we should return here immediately, | |
153 | * note that in the spinlock protected area above the delayed_flags | |
154 | * have been cleared correctly. | |
155 | */ | |
0262ab0d | 156 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
980dfcb9 ID |
157 | return; |
158 | ||
bd88a781 | 159 | if (delayed_flags & DELAYED_UPDATE_BEACON) |
a2c9b652 | 160 | rt2x00queue_update_beacon(rt2x00dev, vif, true); |
6bb40dd1 | 161 | |
72810379 | 162 | if (delayed_flags & DELAYED_CONFIG_ERP) |
980dfcb9 | 163 | rt2x00lib_config_erp(rt2x00dev, intf, &conf); |
a2e1d52a ID |
164 | |
165 | if (delayed_flags & DELAYED_LED_ASSOC) | |
166 | rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated); | |
6bb40dd1 | 167 | } |
5c58ee51 | 168 | |
6bb40dd1 ID |
169 | static void rt2x00lib_intf_scheduled(struct work_struct *work) |
170 | { | |
171 | struct rt2x00_dev *rt2x00dev = | |
172 | container_of(work, struct rt2x00_dev, intf_work); | |
471b3efd JB |
173 | |
174 | /* | |
6bb40dd1 ID |
175 | * Iterate over each interface and perform the |
176 | * requested configurations. | |
471b3efd | 177 | */ |
6bb40dd1 ID |
178 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, |
179 | rt2x00lib_intf_scheduled_iter, | |
180 | rt2x00dev); | |
5c58ee51 ID |
181 | } |
182 | ||
95ea3627 ID |
183 | /* |
184 | * Interrupt context handlers. | |
185 | */ | |
6bb40dd1 ID |
186 | static void rt2x00lib_beacondone_iter(void *data, u8 *mac, |
187 | struct ieee80211_vif *vif) | |
95ea3627 | 188 | { |
c4da0048 | 189 | struct rt2x00_dev *rt2x00dev = data; |
6bb40dd1 | 190 | struct rt2x00_intf *intf = vif_to_intf(vif); |
95ea3627 | 191 | |
05c914fe | 192 | if (vif->type != NL80211_IFTYPE_AP && |
a07dbea2 | 193 | vif->type != NL80211_IFTYPE_ADHOC && |
ce292a64 ID |
194 | vif->type != NL80211_IFTYPE_MESH_POINT && |
195 | vif->type != NL80211_IFTYPE_WDS) | |
95ea3627 ID |
196 | return; |
197 | ||
c95edf54 GW |
198 | /* |
199 | * Clean up the beacon skb. | |
200 | */ | |
c4da0048 | 201 | rt2x00queue_free_skb(rt2x00dev, intf->beacon->skb); |
c95edf54 GW |
202 | intf->beacon->skb = NULL; |
203 | ||
6bb40dd1 ID |
204 | spin_lock(&intf->lock); |
205 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; | |
206 | spin_unlock(&intf->lock); | |
95ea3627 ID |
207 | } |
208 | ||
209 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) | |
210 | { | |
0262ab0d | 211 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
212 | return; |
213 | ||
633257d3 ID |
214 | ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw, |
215 | rt2x00lib_beacondone_iter, | |
216 | rt2x00dev); | |
6bb40dd1 | 217 | |
42935eca | 218 | ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work); |
95ea3627 ID |
219 | } |
220 | EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); | |
221 | ||
181d6902 ID |
222 | void rt2x00lib_txdone(struct queue_entry *entry, |
223 | struct txdone_entry_desc *txdesc) | |
95ea3627 | 224 | { |
181d6902 | 225 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
e039fa4a | 226 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); |
e6a9854b | 227 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
d74f5ba4 | 228 | enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); |
9f166171 | 229 | unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
e6a9854b | 230 | u8 rate_idx, rate_flags; |
d74f5ba4 ID |
231 | |
232 | /* | |
233 | * Unmap the skb. | |
234 | */ | |
235 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
e039fa4a | 236 | |
9f166171 ID |
237 | /* |
238 | * Remove L2 padding which was added during | |
239 | */ | |
240 | if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags)) | |
241 | rt2x00queue_payload_align(entry->skb, true, header_length); | |
242 | ||
2bb057d0 ID |
243 | /* |
244 | * If the IV/EIV data was stripped from the frame before it was | |
245 | * passed to the hardware, we should now reinsert it again because | |
246 | * mac80211 will expect the the same data to be present it the | |
247 | * frame as it was passed to us. | |
248 | */ | |
249 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
9f166171 | 250 | rt2x00crypto_tx_insert_iv(entry->skb, header_length); |
2bb057d0 | 251 | |
e039fa4a JB |
252 | /* |
253 | * Send frame to debugfs immediately, after this call is completed | |
254 | * we are going to overwrite the skb->cb array. | |
255 | */ | |
256 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb); | |
95ea3627 ID |
257 | |
258 | /* | |
259 | * Update TX statistics. | |
260 | */ | |
fb55f4d1 | 261 | rt2x00dev->link.qual.tx_success += |
ce4c45e0 AB |
262 | test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
263 | test_bit(TXDONE_UNKNOWN, &txdesc->flags); | |
fb55f4d1 | 264 | rt2x00dev->link.qual.tx_failed += |
cb14cb79 | 265 | test_bit(TXDONE_FAILURE, &txdesc->flags); |
95ea3627 | 266 | |
e6a9854b JB |
267 | rate_idx = skbdesc->tx_rate_idx; |
268 | rate_flags = skbdesc->tx_rate_flags; | |
269 | ||
181d6902 ID |
270 | /* |
271 | * Initialize TX status | |
272 | */ | |
e039fa4a JB |
273 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
274 | tx_info->status.ack_signal = 0; | |
e6a9854b JB |
275 | tx_info->status.rates[0].idx = rate_idx; |
276 | tx_info->status.rates[0].flags = rate_flags; | |
277 | tx_info->status.rates[0].count = txdesc->retry + 1; | |
278 | tx_info->status.rates[1].idx = -1; /* terminate */ | |
181d6902 | 279 | |
e039fa4a | 280 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
ce4c45e0 AB |
281 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
282 | test_bit(TXDONE_UNKNOWN, &txdesc->flags)) | |
e039fa4a | 283 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
fb55f4d1 | 284 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 285 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
95ea3627 ID |
286 | } |
287 | ||
e6a9854b | 288 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
ce4c45e0 AB |
289 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
290 | test_bit(TXDONE_UNKNOWN, &txdesc->flags)) | |
181d6902 | 291 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
fb55f4d1 | 292 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 293 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
95ea3627 ID |
294 | } |
295 | ||
296 | /* | |
e039fa4a JB |
297 | * Only send the status report to mac80211 when TX status was |
298 | * requested by it. If this was a extra frame coming through | |
299 | * a mac80211 library call (RTS/CTS) then we should not send the | |
300 | * status report back. | |
95ea3627 | 301 | */ |
e039fa4a JB |
302 | if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) |
303 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); | |
baf26a7e | 304 | else |
fb55f4d1 | 305 | dev_kfree_skb_irq(entry->skb); |
d74f5ba4 ID |
306 | |
307 | /* | |
308 | * Make this entry available for reuse. | |
309 | */ | |
95ea3627 | 310 | entry->skb = NULL; |
d74f5ba4 ID |
311 | entry->flags = 0; |
312 | ||
798b7adb | 313 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 | 314 | |
0262ab0d | 315 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
d74f5ba4 ID |
316 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
317 | ||
318 | /* | |
319 | * If the data queue was below the threshold before the txdone | |
320 | * handler we must make sure the packet queue in the mac80211 stack | |
321 | * is reenabled when the txdone handler has finished. | |
322 | */ | |
323 | if (!rt2x00queue_threshold(entry->queue)) | |
324 | ieee80211_wake_queue(rt2x00dev->hw, qid); | |
95ea3627 ID |
325 | } |
326 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); | |
327 | ||
35f00cfc ID |
328 | static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev, |
329 | struct rxdone_entry_desc *rxdesc) | |
330 | { | |
331 | struct ieee80211_supported_band *sband; | |
332 | const struct rt2x00_rate *rate; | |
333 | unsigned int i; | |
334 | int signal; | |
335 | int type; | |
336 | ||
337 | /* | |
338 | * For non-HT rates the MCS value needs to contain the | |
339 | * actually used rate modulation (CCK or OFDM). | |
340 | */ | |
341 | if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS) | |
342 | signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal); | |
343 | else | |
344 | signal = rxdesc->signal; | |
345 | ||
346 | type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK); | |
347 | ||
348 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; | |
349 | for (i = 0; i < sband->n_bitrates; i++) { | |
350 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); | |
351 | ||
352 | if (((type == RXDONE_SIGNAL_PLCP) && | |
353 | (rate->plcp == signal)) || | |
354 | ((type == RXDONE_SIGNAL_BITRATE) && | |
355 | (rate->bitrate == signal)) || | |
356 | ((type == RXDONE_SIGNAL_MCS) && | |
357 | (rate->mcs == signal))) { | |
358 | return i; | |
359 | } | |
360 | } | |
361 | ||
362 | WARNING(rt2x00dev, "Frame received with unrecognized signal, " | |
363 | "signal=0x%.4x, type=%d.\n", signal, type); | |
364 | return 0; | |
365 | } | |
366 | ||
c4da0048 GW |
367 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
368 | struct queue_entry *entry) | |
95ea3627 | 369 | { |
c4da0048 GW |
370 | struct rxdone_entry_desc rxdesc; |
371 | struct sk_buff *skb; | |
95ea3627 | 372 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
2bb057d0 | 373 | unsigned int header_length; |
9f166171 | 374 | bool l2pad; |
35f00cfc | 375 | int rate_idx; |
c4da0048 GW |
376 | /* |
377 | * Allocate a new sk_buffer. If no new buffer available, drop the | |
378 | * received frame and reuse the existing buffer. | |
379 | */ | |
380 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); | |
381 | if (!skb) | |
382 | return; | |
383 | ||
384 | /* | |
385 | * Unmap the skb. | |
386 | */ | |
387 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
388 | ||
389 | /* | |
390 | * Extract the RXD details. | |
391 | */ | |
392 | memset(&rxdesc, 0, sizeof(rxdesc)); | |
393 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); | |
95ea3627 | 394 | |
9f166171 ID |
395 | /* Trim buffer to correct size */ |
396 | skb_trim(entry->skb, rxdesc.size); | |
397 | ||
239c249d GW |
398 | /* |
399 | * The data behind the ieee80211 header must be | |
a9f853dd | 400 | * aligned on a 4 byte boundary. |
239c249d | 401 | */ |
2bb057d0 | 402 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
9f166171 | 403 | l2pad = !!(rxdesc.dev_flags & RXDONE_L2PAD); |
239c249d | 404 | |
2bb057d0 ID |
405 | /* |
406 | * Hardware might have stripped the IV/EIV/ICV data, | |
407 | * in that case it is possible that the data was | |
408 | * provided seperately (through hardware descriptor) | |
409 | * in which case we should reinsert the data into the frame. | |
410 | */ | |
74415edb | 411 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
9f166171 ID |
412 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) |
413 | rt2x00crypto_rx_insert_iv(entry->skb, l2pad, header_length, | |
414 | &rxdesc); | |
415 | else | |
416 | rt2x00queue_payload_align(entry->skb, l2pad, header_length); | |
239c249d | 417 | |
95ea3627 | 418 | /* |
35f00cfc ID |
419 | * Check if the frame was received using HT. In that case, |
420 | * the rate is the MCS index and should be passed to mac80211 | |
421 | * directly. Otherwise we need to translate the signal to | |
422 | * the correct bitrate index. | |
95ea3627 | 423 | */ |
35f00cfc ID |
424 | if (rxdesc.rate_mode == RATE_MODE_CCK || |
425 | rxdesc.rate_mode == RATE_MODE_OFDM) { | |
426 | rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc); | |
427 | } else { | |
428 | rxdesc.flags |= RX_FLAG_HT; | |
429 | rate_idx = rxdesc.signal; | |
866a0503 ID |
430 | } |
431 | ||
61af43c5 | 432 | /* |
84e3196f | 433 | * Update extra components |
61af43c5 | 434 | */ |
84e3196f ID |
435 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
436 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); | |
69f81a2c | 437 | |
ae73e58e | 438 | rx_status->mactime = rxdesc.timestamp; |
35f00cfc | 439 | rx_status->rate_idx = rate_idx; |
84e3196f | 440 | rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi); |
c4da0048 | 441 | rx_status->signal = rxdesc.rssi; |
2bdb35c7 | 442 | rx_status->noise = rxdesc.noise; |
c4da0048 | 443 | rx_status->flag = rxdesc.flags; |
69f81a2c | 444 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
95ea3627 ID |
445 | |
446 | /* | |
181d6902 ID |
447 | * Send frame to mac80211 & debugfs. |
448 | * mac80211 will clean up the skb structure. | |
95ea3627 | 449 | */ |
5a6e5999 | 450 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
f1d58c25 JB |
451 | memcpy(IEEE80211_SKB_RXCB(entry->skb), rx_status, sizeof(*rx_status)); |
452 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb); | |
c4da0048 GW |
453 | |
454 | /* | |
455 | * Replace the skb with the freshly allocated one. | |
456 | */ | |
457 | entry->skb = skb; | |
d74f5ba4 ID |
458 | entry->flags = 0; |
459 | ||
798b7adb | 460 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 ID |
461 | |
462 | rt2x00queue_index_inc(entry->queue, Q_INDEX); | |
95ea3627 ID |
463 | } |
464 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); | |
465 | ||
95ea3627 ID |
466 | /* |
467 | * Driver initialization handlers. | |
468 | */ | |
70e2fed4 ID |
469 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
470 | { | |
3d8606a6 | 471 | .flags = DEV_RATE_CCK, |
70e2fed4 | 472 | .bitrate = 10, |
aa776721 | 473 | .ratemask = BIT(0), |
70e2fed4 | 474 | .plcp = 0x00, |
35f00cfc | 475 | .mcs = RATE_MCS(RATE_MODE_CCK, 0), |
70e2fed4 ID |
476 | }, |
477 | { | |
3d8606a6 | 478 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 479 | .bitrate = 20, |
aa776721 | 480 | .ratemask = BIT(1), |
70e2fed4 | 481 | .plcp = 0x01, |
35f00cfc | 482 | .mcs = RATE_MCS(RATE_MODE_CCK, 1), |
70e2fed4 ID |
483 | }, |
484 | { | |
3d8606a6 | 485 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 486 | .bitrate = 55, |
aa776721 | 487 | .ratemask = BIT(2), |
70e2fed4 | 488 | .plcp = 0x02, |
35f00cfc | 489 | .mcs = RATE_MCS(RATE_MODE_CCK, 2), |
70e2fed4 ID |
490 | }, |
491 | { | |
3d8606a6 | 492 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 493 | .bitrate = 110, |
aa776721 | 494 | .ratemask = BIT(3), |
70e2fed4 | 495 | .plcp = 0x03, |
35f00cfc | 496 | .mcs = RATE_MCS(RATE_MODE_CCK, 3), |
70e2fed4 ID |
497 | }, |
498 | { | |
3d8606a6 | 499 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 500 | .bitrate = 60, |
aa776721 | 501 | .ratemask = BIT(4), |
70e2fed4 | 502 | .plcp = 0x0b, |
35f00cfc | 503 | .mcs = RATE_MCS(RATE_MODE_OFDM, 0), |
70e2fed4 ID |
504 | }, |
505 | { | |
506 | .flags = DEV_RATE_OFDM, | |
507 | .bitrate = 90, | |
aa776721 | 508 | .ratemask = BIT(5), |
70e2fed4 | 509 | .plcp = 0x0f, |
35f00cfc | 510 | .mcs = RATE_MCS(RATE_MODE_OFDM, 1), |
70e2fed4 ID |
511 | }, |
512 | { | |
3d8606a6 | 513 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 514 | .bitrate = 120, |
aa776721 | 515 | .ratemask = BIT(6), |
70e2fed4 | 516 | .plcp = 0x0a, |
35f00cfc | 517 | .mcs = RATE_MCS(RATE_MODE_OFDM, 2), |
70e2fed4 ID |
518 | }, |
519 | { | |
520 | .flags = DEV_RATE_OFDM, | |
521 | .bitrate = 180, | |
aa776721 | 522 | .ratemask = BIT(7), |
70e2fed4 | 523 | .plcp = 0x0e, |
35f00cfc | 524 | .mcs = RATE_MCS(RATE_MODE_OFDM, 3), |
70e2fed4 ID |
525 | }, |
526 | { | |
3d8606a6 | 527 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 528 | .bitrate = 240, |
aa776721 | 529 | .ratemask = BIT(8), |
70e2fed4 | 530 | .plcp = 0x09, |
35f00cfc | 531 | .mcs = RATE_MCS(RATE_MODE_OFDM, 4), |
70e2fed4 ID |
532 | }, |
533 | { | |
534 | .flags = DEV_RATE_OFDM, | |
535 | .bitrate = 360, | |
aa776721 | 536 | .ratemask = BIT(9), |
70e2fed4 | 537 | .plcp = 0x0d, |
35f00cfc | 538 | .mcs = RATE_MCS(RATE_MODE_OFDM, 5), |
70e2fed4 ID |
539 | }, |
540 | { | |
541 | .flags = DEV_RATE_OFDM, | |
542 | .bitrate = 480, | |
aa776721 | 543 | .ratemask = BIT(10), |
70e2fed4 | 544 | .plcp = 0x08, |
35f00cfc | 545 | .mcs = RATE_MCS(RATE_MODE_OFDM, 6), |
70e2fed4 ID |
546 | }, |
547 | { | |
548 | .flags = DEV_RATE_OFDM, | |
549 | .bitrate = 540, | |
aa776721 | 550 | .ratemask = BIT(11), |
70e2fed4 | 551 | .plcp = 0x0c, |
35f00cfc | 552 | .mcs = RATE_MCS(RATE_MODE_OFDM, 7), |
70e2fed4 ID |
553 | }, |
554 | }; | |
555 | ||
95ea3627 ID |
556 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
557 | const int channel, const int tx_power, | |
558 | const int value) | |
559 | { | |
f2a3c7f5 | 560 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
8318d78a JB |
561 | entry->hw_value = value; |
562 | entry->max_power = tx_power; | |
563 | entry->max_antenna_gain = 0xff; | |
95ea3627 ID |
564 | } |
565 | ||
566 | static void rt2x00lib_rate(struct ieee80211_rate *entry, | |
70e2fed4 | 567 | const u16 index, const struct rt2x00_rate *rate) |
95ea3627 | 568 | { |
70e2fed4 ID |
569 | entry->flags = 0; |
570 | entry->bitrate = rate->bitrate; | |
3ea96463 ID |
571 | entry->hw_value =index; |
572 | entry->hw_value_short = index; | |
70e2fed4 | 573 | |
3ea96463 | 574 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
70e2fed4 | 575 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
95ea3627 ID |
576 | } |
577 | ||
578 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, | |
579 | struct hw_mode_spec *spec) | |
580 | { | |
581 | struct ieee80211_hw *hw = rt2x00dev->hw; | |
95ea3627 ID |
582 | struct ieee80211_channel *channels; |
583 | struct ieee80211_rate *rates; | |
31562e80 | 584 | unsigned int num_rates; |
95ea3627 | 585 | unsigned int i; |
95ea3627 | 586 | |
31562e80 ID |
587 | num_rates = 0; |
588 | if (spec->supported_rates & SUPPORT_RATE_CCK) | |
589 | num_rates += 4; | |
590 | if (spec->supported_rates & SUPPORT_RATE_OFDM) | |
591 | num_rates += 8; | |
95ea3627 ID |
592 | |
593 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); | |
594 | if (!channels) | |
8318d78a | 595 | return -ENOMEM; |
95ea3627 | 596 | |
31562e80 | 597 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
95ea3627 ID |
598 | if (!rates) |
599 | goto exit_free_channels; | |
600 | ||
601 | /* | |
602 | * Initialize Rate list. | |
603 | */ | |
31562e80 | 604 | for (i = 0; i < num_rates; i++) |
8f5fa7f0 | 605 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
95ea3627 ID |
606 | |
607 | /* | |
608 | * Initialize Channel list. | |
609 | */ | |
610 | for (i = 0; i < spec->num_channels; i++) { | |
95ea3627 | 611 | rt2x00lib_channel(&channels[i], |
8c5e7a5f ID |
612 | spec->channels[i].channel, |
613 | spec->channels_info[i].tx_power1, i); | |
95ea3627 ID |
614 | } |
615 | ||
616 | /* | |
31562e80 | 617 | * Intitialize 802.11b, 802.11g |
95ea3627 | 618 | * Rates: CCK, OFDM. |
8318d78a | 619 | * Channels: 2.4 GHz |
95ea3627 | 620 | */ |
47ac2683 | 621 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
31562e80 ID |
622 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
623 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; | |
624 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; | |
625 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; | |
626 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
627 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; | |
35f00cfc ID |
628 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap, |
629 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
630 | } |
631 | ||
632 | /* | |
633 | * Intitialize 802.11a | |
634 | * Rates: OFDM. | |
635 | * Channels: OFDM, UNII, HiperLAN2. | |
636 | */ | |
47ac2683 | 637 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
31562e80 ID |
638 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
639 | spec->num_channels - 14; | |
640 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = | |
641 | num_rates - 4; | |
642 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; | |
643 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; | |
644 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
645 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; | |
35f00cfc ID |
646 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap, |
647 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
648 | } |
649 | ||
95ea3627 ID |
650 | return 0; |
651 | ||
8318d78a | 652 | exit_free_channels: |
95ea3627 | 653 | kfree(channels); |
95ea3627 ID |
654 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
655 | return -ENOMEM; | |
656 | } | |
657 | ||
658 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) | |
659 | { | |
0262ab0d | 660 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
95ea3627 ID |
661 | ieee80211_unregister_hw(rt2x00dev->hw); |
662 | ||
8318d78a JB |
663 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
664 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); | |
665 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); | |
666 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
667 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
95ea3627 | 668 | } |
8c5e7a5f ID |
669 | |
670 | kfree(rt2x00dev->spec.channels_info); | |
95ea3627 ID |
671 | } |
672 | ||
673 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) | |
674 | { | |
675 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
676 | int status; | |
677 | ||
0262ab0d ID |
678 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
679 | return 0; | |
680 | ||
95ea3627 ID |
681 | /* |
682 | * Initialize HW modes. | |
683 | */ | |
684 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); | |
685 | if (status) | |
686 | return status; | |
687 | ||
61448f88 GW |
688 | /* |
689 | * Initialize HW fields. | |
690 | */ | |
691 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; | |
692 | ||
95ea3627 ID |
693 | /* |
694 | * Register HW. | |
695 | */ | |
696 | status = ieee80211_register_hw(rt2x00dev->hw); | |
f05faa31 | 697 | if (status) |
95ea3627 | 698 | return status; |
95ea3627 | 699 | |
0262ab0d | 700 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
95ea3627 ID |
701 | |
702 | return 0; | |
703 | } | |
704 | ||
705 | /* | |
706 | * Initialization/uninitialization handlers. | |
707 | */ | |
e37ea213 | 708 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 709 | { |
0262ab0d | 710 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
711 | return; |
712 | ||
713 | /* | |
1682fe6d | 714 | * Unregister extra components. |
95ea3627 ID |
715 | */ |
716 | rt2x00rfkill_unregister(rt2x00dev); | |
717 | ||
718 | /* | |
719 | * Allow the HW to uninitialize. | |
720 | */ | |
721 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); | |
722 | ||
723 | /* | |
181d6902 | 724 | * Free allocated queue entries. |
95ea3627 | 725 | */ |
181d6902 | 726 | rt2x00queue_uninitialize(rt2x00dev); |
95ea3627 ID |
727 | } |
728 | ||
e37ea213 | 729 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
730 | { |
731 | int status; | |
732 | ||
0262ab0d | 733 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
734 | return 0; |
735 | ||
736 | /* | |
181d6902 | 737 | * Allocate all queue entries. |
95ea3627 | 738 | */ |
181d6902 ID |
739 | status = rt2x00queue_initialize(rt2x00dev); |
740 | if (status) | |
95ea3627 | 741 | return status; |
95ea3627 ID |
742 | |
743 | /* | |
744 | * Initialize the device. | |
745 | */ | |
746 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); | |
ed499983 ID |
747 | if (status) { |
748 | rt2x00queue_uninitialize(rt2x00dev); | |
749 | return status; | |
750 | } | |
95ea3627 | 751 | |
0262ab0d | 752 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
95ea3627 ID |
753 | |
754 | /* | |
1682fe6d | 755 | * Register the extra components. |
95ea3627 | 756 | */ |
1682fe6d | 757 | rt2x00rfkill_register(rt2x00dev); |
95ea3627 ID |
758 | |
759 | return 0; | |
95ea3627 ID |
760 | } |
761 | ||
e37ea213 ID |
762 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
763 | { | |
764 | int retval; | |
765 | ||
0262ab0d | 766 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
767 | return 0; |
768 | ||
769 | /* | |
770 | * If this is the first interface which is added, | |
771 | * we should load the firmware now. | |
772 | */ | |
9404ef34 ID |
773 | retval = rt2x00lib_load_firmware(rt2x00dev); |
774 | if (retval) | |
775 | return retval; | |
e37ea213 ID |
776 | |
777 | /* | |
778 | * Initialize the device. | |
779 | */ | |
780 | retval = rt2x00lib_initialize(rt2x00dev); | |
781 | if (retval) | |
782 | return retval; | |
783 | ||
6bb40dd1 ID |
784 | rt2x00dev->intf_ap_count = 0; |
785 | rt2x00dev->intf_sta_count = 0; | |
786 | rt2x00dev->intf_associated = 0; | |
787 | ||
0262ab0d | 788 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
e37ea213 ID |
789 | |
790 | return 0; | |
791 | } | |
792 | ||
793 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) | |
794 | { | |
0262ab0d | 795 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
796 | return; |
797 | ||
798 | /* | |
799 | * Perhaps we can add something smarter here, | |
800 | * but for now just disabling the radio should do. | |
801 | */ | |
802 | rt2x00lib_disable_radio(rt2x00dev); | |
803 | ||
6bb40dd1 ID |
804 | rt2x00dev->intf_ap_count = 0; |
805 | rt2x00dev->intf_sta_count = 0; | |
806 | rt2x00dev->intf_associated = 0; | |
e37ea213 ID |
807 | } |
808 | ||
95ea3627 ID |
809 | /* |
810 | * driver allocation handlers. | |
811 | */ | |
95ea3627 ID |
812 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
813 | { | |
814 | int retval = -ENOMEM; | |
815 | ||
8ff48a8b ID |
816 | mutex_init(&rt2x00dev->csr_mutex); |
817 | ||
6bb40dd1 ID |
818 | /* |
819 | * Make room for rt2x00_intf inside the per-interface | |
820 | * structure ieee80211_vif. | |
821 | */ | |
822 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); | |
823 | ||
3514a441 ID |
824 | /* |
825 | * Determine which operating modes are supported, all modes | |
826 | * which require beaconing, depend on the availability of | |
827 | * beacon entries. | |
828 | */ | |
829 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
830 | if (rt2x00dev->ops->bcn->entry_num > 0) | |
831 | rt2x00dev->hw->wiphy->interface_modes |= | |
832 | BIT(NL80211_IFTYPE_ADHOC) | | |
a07dbea2 | 833 | BIT(NL80211_IFTYPE_AP) | |
ce292a64 ID |
834 | BIT(NL80211_IFTYPE_MESH_POINT) | |
835 | BIT(NL80211_IFTYPE_WDS); | |
f59ac048 | 836 | |
95ea3627 ID |
837 | /* |
838 | * Let the driver probe the device to detect the capabilities. | |
839 | */ | |
840 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); | |
841 | if (retval) { | |
842 | ERROR(rt2x00dev, "Failed to allocate device.\n"); | |
843 | goto exit; | |
844 | } | |
845 | ||
846 | /* | |
847 | * Initialize configuration work. | |
848 | */ | |
6bb40dd1 | 849 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
4150c572 | 850 | INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled); |
95ea3627 | 851 | |
95ea3627 | 852 | /* |
181d6902 | 853 | * Allocate queue array. |
95ea3627 | 854 | */ |
181d6902 | 855 | retval = rt2x00queue_allocate(rt2x00dev); |
95ea3627 ID |
856 | if (retval) |
857 | goto exit; | |
858 | ||
859 | /* | |
860 | * Initialize ieee80211 structure. | |
861 | */ | |
862 | retval = rt2x00lib_probe_hw(rt2x00dev); | |
863 | if (retval) { | |
864 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); | |
865 | goto exit; | |
866 | } | |
867 | ||
a9450b70 | 868 | /* |
1682fe6d | 869 | * Register extra components. |
a9450b70 | 870 | */ |
84e3196f | 871 | rt2x00link_register(rt2x00dev); |
a9450b70 | 872 | rt2x00leds_register(rt2x00dev); |
95ea3627 ID |
873 | rt2x00debug_register(rt2x00dev); |
874 | ||
0262ab0d | 875 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 876 | |
95ea3627 ID |
877 | return 0; |
878 | ||
879 | exit: | |
880 | rt2x00lib_remove_dev(rt2x00dev); | |
881 | ||
882 | return retval; | |
883 | } | |
884 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); | |
885 | ||
886 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) | |
887 | { | |
0262ab0d | 888 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 889 | |
95ea3627 ID |
890 | /* |
891 | * Disable radio. | |
892 | */ | |
893 | rt2x00lib_disable_radio(rt2x00dev); | |
894 | ||
895 | /* | |
896 | * Uninitialize device. | |
897 | */ | |
898 | rt2x00lib_uninitialize(rt2x00dev); | |
899 | ||
900 | /* | |
1682fe6d | 901 | * Free extra components |
95ea3627 ID |
902 | */ |
903 | rt2x00debug_deregister(rt2x00dev); | |
a9450b70 ID |
904 | rt2x00leds_unregister(rt2x00dev); |
905 | ||
95ea3627 ID |
906 | /* |
907 | * Free ieee80211_hw memory. | |
908 | */ | |
909 | rt2x00lib_remove_hw(rt2x00dev); | |
910 | ||
911 | /* | |
912 | * Free firmware image. | |
913 | */ | |
914 | rt2x00lib_free_firmware(rt2x00dev); | |
915 | ||
916 | /* | |
181d6902 | 917 | * Free queue structures. |
95ea3627 | 918 | */ |
181d6902 | 919 | rt2x00queue_free(rt2x00dev); |
95ea3627 ID |
920 | } |
921 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); | |
922 | ||
923 | /* | |
924 | * Device state handlers | |
925 | */ | |
926 | #ifdef CONFIG_PM | |
927 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) | |
928 | { | |
95ea3627 | 929 | NOTICE(rt2x00dev, "Going to sleep.\n"); |
066cb637 ID |
930 | |
931 | /* | |
07126127 | 932 | * Prevent mac80211 from accessing driver while suspended. |
066cb637 | 933 | */ |
07126127 ID |
934 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) |
935 | return 0; | |
95ea3627 ID |
936 | |
937 | /* | |
07126127 | 938 | * Cleanup as much as possible. |
95ea3627 | 939 | */ |
95ea3627 | 940 | rt2x00lib_uninitialize(rt2x00dev); |
1682fe6d ID |
941 | |
942 | /* | |
943 | * Suspend/disable extra components. | |
944 | */ | |
a9450b70 | 945 | rt2x00leds_suspend(rt2x00dev); |
95ea3627 ID |
946 | rt2x00debug_deregister(rt2x00dev); |
947 | ||
948 | /* | |
9896322a ID |
949 | * Set device mode to sleep for power management, |
950 | * on some hardware this call seems to consistently fail. | |
951 | * From the specifications it is hard to tell why it fails, | |
952 | * and if this is a "bad thing". | |
953 | * Overall it is safe to just ignore the failure and | |
954 | * continue suspending. The only downside is that the | |
955 | * device will not be in optimal power save mode, but with | |
956 | * the radio and the other components already disabled the | |
957 | * device is as good as disabled. | |
95ea3627 | 958 | */ |
07126127 | 959 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP)) |
9896322a ID |
960 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
961 | "continue suspending.\n"); | |
95ea3627 ID |
962 | |
963 | return 0; | |
964 | } | |
965 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); | |
966 | ||
967 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) | |
968 | { | |
95ea3627 | 969 | NOTICE(rt2x00dev, "Waking up.\n"); |
95ea3627 ID |
970 | |
971 | /* | |
1682fe6d | 972 | * Restore/enable extra components. |
95ea3627 ID |
973 | */ |
974 | rt2x00debug_register(rt2x00dev); | |
a9450b70 | 975 | rt2x00leds_resume(rt2x00dev); |
95ea3627 | 976 | |
e37ea213 ID |
977 | /* |
978 | * We are ready again to receive requests from mac80211. | |
979 | */ | |
0262ab0d | 980 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
e37ea213 | 981 | |
95ea3627 | 982 | return 0; |
95ea3627 ID |
983 | } |
984 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); | |
985 | #endif /* CONFIG_PM */ | |
986 | ||
987 | /* | |
988 | * rt2x00lib module information. | |
989 | */ | |
990 | MODULE_AUTHOR(DRV_PROJECT); | |
991 | MODULE_VERSION(DRV_VERSION); | |
992 | MODULE_DESCRIPTION("rt2x00 library"); | |
993 | MODULE_LICENSE("GPL"); |