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Commit | Line | Data |
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f078f209 LR |
1 | /* |
2 | * Copyright (c) 2008 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 | /* mac80211 and PCI callbacks */ | |
18 | ||
19 | #include <linux/nl80211.h> | |
20 | #include "core.h" | |
21 | ||
22 | #define ATH_PCI_VERSION "0.1" | |
23 | ||
24 | #define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13 | |
f078f209 LR |
25 | |
26 | static char *dev_info = "ath9k"; | |
27 | ||
28 | MODULE_AUTHOR("Atheros Communications"); | |
29 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); | |
30 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); | |
31 | MODULE_LICENSE("Dual BSD/GPL"); | |
32 | ||
33 | static struct pci_device_id ath_pci_id_table[] __devinitdata = { | |
34 | { PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI */ | |
35 | { PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */ | |
36 | { PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI */ | |
37 | { PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI */ | |
38 | { PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */ | |
39 | { 0 } | |
40 | }; | |
41 | ||
42 | static int ath_get_channel(struct ath_softc *sc, | |
43 | struct ieee80211_channel *chan) | |
44 | { | |
45 | int i; | |
46 | ||
47 | for (i = 0; i < sc->sc_ah->ah_nchan; i++) { | |
48 | if (sc->sc_ah->ah_channels[i].channel == chan->center_freq) | |
49 | return i; | |
50 | } | |
51 | ||
52 | return -1; | |
53 | } | |
54 | ||
55 | static u32 ath_get_extchanmode(struct ath_softc *sc, | |
56 | struct ieee80211_channel *chan) | |
57 | { | |
58 | u32 chanmode = 0; | |
59 | u8 ext_chan_offset = sc->sc_ht_info.ext_chan_offset; | |
60 | enum ath9k_ht_macmode tx_chan_width = sc->sc_ht_info.tx_chan_width; | |
61 | ||
62 | switch (chan->band) { | |
63 | case IEEE80211_BAND_2GHZ: | |
64 | if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE) && | |
65 | (tx_chan_width == ATH9K_HT_MACMODE_20)) | |
66 | chanmode = CHANNEL_G_HT20; | |
67 | if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) && | |
68 | (tx_chan_width == ATH9K_HT_MACMODE_2040)) | |
69 | chanmode = CHANNEL_G_HT40PLUS; | |
70 | if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) && | |
71 | (tx_chan_width == ATH9K_HT_MACMODE_2040)) | |
72 | chanmode = CHANNEL_G_HT40MINUS; | |
73 | break; | |
74 | case IEEE80211_BAND_5GHZ: | |
75 | if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE) && | |
76 | (tx_chan_width == ATH9K_HT_MACMODE_20)) | |
77 | chanmode = CHANNEL_A_HT20; | |
78 | if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) && | |
79 | (tx_chan_width == ATH9K_HT_MACMODE_2040)) | |
80 | chanmode = CHANNEL_A_HT40PLUS; | |
81 | if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) && | |
82 | (tx_chan_width == ATH9K_HT_MACMODE_2040)) | |
83 | chanmode = CHANNEL_A_HT40MINUS; | |
84 | break; | |
85 | default: | |
86 | break; | |
87 | } | |
88 | ||
89 | return chanmode; | |
90 | } | |
91 | ||
92 | ||
93 | static int ath_setkey_tkip(struct ath_softc *sc, | |
94 | struct ieee80211_key_conf *key, | |
95 | struct ath9k_keyval *hk, | |
96 | const u8 *addr) | |
97 | { | |
98 | u8 *key_rxmic = NULL; | |
99 | u8 *key_txmic = NULL; | |
100 | ||
101 | key_txmic = key->key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; | |
102 | key_rxmic = key->key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; | |
103 | ||
104 | if (addr == NULL) { | |
105 | /* Group key installation */ | |
106 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
107 | return ath_keyset(sc, key->keyidx, hk, addr); | |
108 | } | |
109 | if (!sc->sc_splitmic) { | |
110 | /* | |
111 | * data key goes at first index, | |
112 | * the hal handles the MIC keys at index+64. | |
113 | */ | |
114 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
115 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); | |
116 | return ath_keyset(sc, key->keyidx, hk, addr); | |
117 | } | |
118 | /* | |
119 | * TX key goes at first index, RX key at +32. | |
120 | * The hal handles the MIC keys at index+64. | |
121 | */ | |
122 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); | |
123 | if (!ath_keyset(sc, key->keyidx, hk, NULL)) { | |
124 | /* Txmic entry failed. No need to proceed further */ | |
125 | DPRINTF(sc, ATH_DBG_KEYCACHE, | |
126 | "%s Setting TX MIC Key Failed\n", __func__); | |
127 | return 0; | |
128 | } | |
129 | ||
130 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
131 | /* XXX delete tx key on failure? */ | |
132 | return ath_keyset(sc, key->keyidx+32, hk, addr); | |
133 | } | |
134 | ||
135 | static int ath_key_config(struct ath_softc *sc, | |
136 | const u8 *addr, | |
137 | struct ieee80211_key_conf *key) | |
138 | { | |
139 | struct ieee80211_vif *vif; | |
140 | struct ath9k_keyval hk; | |
141 | const u8 *mac = NULL; | |
142 | int ret = 0; | |
05c914fe | 143 | enum nl80211_iftype opmode; |
f078f209 LR |
144 | |
145 | memset(&hk, 0, sizeof(hk)); | |
146 | ||
147 | switch (key->alg) { | |
148 | case ALG_WEP: | |
149 | hk.kv_type = ATH9K_CIPHER_WEP; | |
150 | break; | |
151 | case ALG_TKIP: | |
152 | hk.kv_type = ATH9K_CIPHER_TKIP; | |
153 | break; | |
154 | case ALG_CCMP: | |
155 | hk.kv_type = ATH9K_CIPHER_AES_CCM; | |
156 | break; | |
157 | default: | |
158 | return -EINVAL; | |
159 | } | |
160 | ||
161 | hk.kv_len = key->keylen; | |
162 | memcpy(hk.kv_val, key->key, key->keylen); | |
163 | ||
164 | if (!sc->sc_vaps[0]) | |
165 | return -EIO; | |
166 | ||
167 | vif = sc->sc_vaps[0]->av_if_data; | |
168 | opmode = vif->type; | |
169 | ||
170 | /* | |
171 | * Strategy: | |
172 | * For _M_STA mc tx, we will not setup a key at all since we never | |
173 | * tx mc. | |
174 | * _M_STA mc rx, we will use the keyID. | |
175 | * for _M_IBSS mc tx, we will use the keyID, and no macaddr. | |
176 | * for _M_IBSS mc rx, we will alloc a slot and plumb the mac of the | |
177 | * peer node. BUT we will plumb a cleartext key so that we can do | |
178 | * perSta default key table lookup in software. | |
179 | */ | |
180 | if (is_broadcast_ether_addr(addr)) { | |
181 | switch (opmode) { | |
05c914fe | 182 | case NL80211_IFTYPE_STATION: |
f078f209 LR |
183 | /* default key: could be group WPA key |
184 | * or could be static WEP key */ | |
185 | mac = NULL; | |
186 | break; | |
05c914fe | 187 | case NL80211_IFTYPE_ADHOC: |
f078f209 | 188 | break; |
05c914fe | 189 | case NL80211_IFTYPE_AP: |
f078f209 LR |
190 | break; |
191 | default: | |
192 | ASSERT(0); | |
193 | break; | |
194 | } | |
195 | } else { | |
196 | mac = addr; | |
197 | } | |
198 | ||
199 | if (key->alg == ALG_TKIP) | |
200 | ret = ath_setkey_tkip(sc, key, &hk, mac); | |
201 | else | |
202 | ret = ath_keyset(sc, key->keyidx, &hk, mac); | |
203 | ||
204 | if (!ret) | |
205 | return -EIO; | |
206 | ||
f078f209 LR |
207 | return 0; |
208 | } | |
209 | ||
210 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) | |
211 | { | |
f078f209 LR |
212 | int freeslot; |
213 | ||
ff9b662d | 214 | freeslot = (key->keyidx >= 4) ? 1 : 0; |
f078f209 | 215 | ath_key_reset(sc, key->keyidx, freeslot); |
f078f209 LR |
216 | } |
217 | ||
218 | static void setup_ht_cap(struct ieee80211_ht_info *ht_info) | |
219 | { | |
60653678 S |
220 | #define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */ |
221 | #define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */ | |
f078f209 LR |
222 | |
223 | ht_info->ht_supported = 1; | |
224 | ht_info->cap = (u16)IEEE80211_HT_CAP_SUP_WIDTH | |
00c5ae2f | 225 | |(u16)IEEE80211_HT_CAP_SM_PS |
f078f209 LR |
226 | |(u16)IEEE80211_HT_CAP_SGI_40 |
227 | |(u16)IEEE80211_HT_CAP_DSSSCCK40; | |
228 | ||
60653678 S |
229 | ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536; |
230 | ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8; | |
f078f209 LR |
231 | /* setup supported mcs set */ |
232 | memset(ht_info->supp_mcs_set, 0, 16); | |
233 | ht_info->supp_mcs_set[0] = 0xff; | |
234 | ht_info->supp_mcs_set[1] = 0xff; | |
235 | ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED; | |
236 | } | |
237 | ||
238 | static int ath_rate2idx(struct ath_softc *sc, int rate) | |
239 | { | |
240 | int i = 0, cur_band, n_rates; | |
241 | struct ieee80211_hw *hw = sc->hw; | |
242 | ||
243 | cur_band = hw->conf.channel->band; | |
244 | n_rates = sc->sbands[cur_band].n_bitrates; | |
245 | ||
246 | for (i = 0; i < n_rates; i++) { | |
247 | if (sc->sbands[cur_band].bitrates[i].bitrate == rate) | |
248 | break; | |
249 | } | |
250 | ||
251 | /* | |
252 | * NB:mac80211 validates rx rate index against the supported legacy rate | |
253 | * index only (should be done against ht rates also), return the highest | |
254 | * legacy rate index for rx rate which does not match any one of the | |
255 | * supported basic and extended rates to make mac80211 happy. | |
256 | * The following hack will be cleaned up once the issue with | |
257 | * the rx rate index validation in mac80211 is fixed. | |
258 | */ | |
259 | if (i == n_rates) | |
260 | return n_rates - 1; | |
261 | return i; | |
262 | } | |
263 | ||
264 | static void ath9k_rx_prepare(struct ath_softc *sc, | |
265 | struct sk_buff *skb, | |
266 | struct ath_recv_status *status, | |
267 | struct ieee80211_rx_status *rx_status) | |
268 | { | |
269 | struct ieee80211_hw *hw = sc->hw; | |
270 | struct ieee80211_channel *curchan = hw->conf.channel; | |
271 | ||
272 | memset(rx_status, 0, sizeof(struct ieee80211_rx_status)); | |
273 | ||
274 | rx_status->mactime = status->tsf; | |
275 | rx_status->band = curchan->band; | |
276 | rx_status->freq = curchan->center_freq; | |
6f255425 | 277 | rx_status->noise = sc->sc_ani.sc_noise_floor; |
f078f209 LR |
278 | rx_status->signal = rx_status->noise + status->rssi; |
279 | rx_status->rate_idx = ath_rate2idx(sc, (status->rateKbps / 100)); | |
280 | rx_status->antenna = status->antenna; | |
6f255425 LR |
281 | |
282 | /* XXX Fix me, 64 cannot be the max rssi value, rigure it out */ | |
f078f209 LR |
283 | rx_status->qual = status->rssi * 100 / 64; |
284 | ||
285 | if (status->flags & ATH_RX_MIC_ERROR) | |
286 | rx_status->flag |= RX_FLAG_MMIC_ERROR; | |
287 | if (status->flags & ATH_RX_FCS_ERROR) | |
288 | rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; | |
289 | ||
290 | rx_status->flag |= RX_FLAG_TSFT; | |
291 | } | |
292 | ||
293 | static u8 parse_mpdudensity(u8 mpdudensity) | |
294 | { | |
295 | /* | |
296 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": | |
297 | * 0 for no restriction | |
298 | * 1 for 1/4 us | |
299 | * 2 for 1/2 us | |
300 | * 3 for 1 us | |
301 | * 4 for 2 us | |
302 | * 5 for 4 us | |
303 | * 6 for 8 us | |
304 | * 7 for 16 us | |
305 | */ | |
306 | switch (mpdudensity) { | |
307 | case 0: | |
308 | return 0; | |
309 | case 1: | |
310 | case 2: | |
311 | case 3: | |
312 | /* Our lower layer calculations limit our precision to | |
313 | 1 microsecond */ | |
314 | return 1; | |
315 | case 4: | |
316 | return 2; | |
317 | case 5: | |
318 | return 4; | |
319 | case 6: | |
320 | return 8; | |
321 | case 7: | |
322 | return 16; | |
323 | default: | |
324 | return 0; | |
325 | } | |
326 | } | |
327 | ||
8feceb67 VT |
328 | static void ath9k_ht_conf(struct ath_softc *sc, |
329 | struct ieee80211_bss_conf *bss_conf) | |
f078f209 | 330 | { |
8feceb67 VT |
331 | #define IEEE80211_HT_CAP_40MHZ_INTOLERANT BIT(14) |
332 | struct ath_ht_info *ht_info = &sc->sc_ht_info; | |
f078f209 | 333 | |
8feceb67 VT |
334 | if (bss_conf->assoc_ht) { |
335 | ht_info->ext_chan_offset = | |
336 | bss_conf->ht_bss_conf->bss_cap & | |
337 | IEEE80211_HT_IE_CHA_SEC_OFFSET; | |
f078f209 | 338 | |
8feceb67 VT |
339 | if (!(bss_conf->ht_conf->cap & |
340 | IEEE80211_HT_CAP_40MHZ_INTOLERANT) && | |
341 | (bss_conf->ht_bss_conf->bss_cap & | |
342 | IEEE80211_HT_IE_CHA_WIDTH)) | |
343 | ht_info->tx_chan_width = ATH9K_HT_MACMODE_2040; | |
344 | else | |
345 | ht_info->tx_chan_width = ATH9K_HT_MACMODE_20; | |
f078f209 | 346 | |
8feceb67 VT |
347 | ath9k_hw_set11nmac2040(sc->sc_ah, ht_info->tx_chan_width); |
348 | ht_info->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR + | |
349 | bss_conf->ht_conf->ampdu_factor); | |
350 | ht_info->mpdudensity = | |
351 | parse_mpdudensity(bss_conf->ht_conf->ampdu_density); | |
f078f209 | 352 | |
f078f209 LR |
353 | } |
354 | ||
8feceb67 | 355 | #undef IEEE80211_HT_CAP_40MHZ_INTOLERANT |
f078f209 LR |
356 | } |
357 | ||
8feceb67 VT |
358 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
359 | struct ieee80211_bss_conf *bss_conf) | |
f078f209 | 360 | { |
8feceb67 VT |
361 | struct ieee80211_hw *hw = sc->hw; |
362 | struct ieee80211_channel *curchan = hw->conf.channel; | |
363 | struct ath_vap *avp; | |
364 | int pos; | |
f078f209 | 365 | |
8feceb67 VT |
366 | if (bss_conf->assoc) { |
367 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Bss Info ASSOC %d\n", | |
368 | __func__, | |
369 | bss_conf->aid); | |
f078f209 | 370 | |
8feceb67 VT |
371 | avp = sc->sc_vaps[0]; |
372 | if (avp == NULL) { | |
373 | DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid interface\n", | |
374 | __func__); | |
375 | return; | |
376 | } | |
f078f209 | 377 | |
8feceb67 VT |
378 | /* New association, store aid */ |
379 | if (avp->av_opmode == ATH9K_M_STA) { | |
380 | sc->sc_curaid = bss_conf->aid; | |
381 | ath9k_hw_write_associd(sc->sc_ah, sc->sc_curbssid, | |
382 | sc->sc_curaid); | |
383 | } | |
f078f209 | 384 | |
8feceb67 VT |
385 | /* Configure the beacon */ |
386 | ath_beacon_config(sc, 0); | |
387 | sc->sc_flags |= SC_OP_BEACONS; | |
f078f209 | 388 | |
8feceb67 VT |
389 | /* Reset rssi stats */ |
390 | sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; | |
391 | sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; | |
392 | sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; | |
393 | sc->sc_halstats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; | |
f078f209 | 394 | |
8feceb67 VT |
395 | /* Update chainmask */ |
396 | ath_update_chainmask(sc, bss_conf->assoc_ht); | |
f078f209 | 397 | |
f078f209 | 398 | DPRINTF(sc, ATH_DBG_CONFIG, |
e174961c | 399 | "%s: bssid %pM aid 0x%x\n", |
8feceb67 | 400 | __func__, |
e174961c | 401 | sc->sc_curbssid, sc->sc_curaid); |
f078f209 | 402 | |
8feceb67 VT |
403 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n", |
404 | __func__, | |
405 | curchan->center_freq); | |
f078f209 | 406 | |
8feceb67 VT |
407 | pos = ath_get_channel(sc, curchan); |
408 | if (pos == -1) { | |
409 | DPRINTF(sc, ATH_DBG_FATAL, | |
410 | "%s: Invalid channel\n", __func__); | |
411 | return; | |
412 | } | |
f078f209 | 413 | |
8feceb67 VT |
414 | if (hw->conf.ht_conf.ht_supported) |
415 | sc->sc_ah->ah_channels[pos].chanmode = | |
416 | ath_get_extchanmode(sc, curchan); | |
417 | else | |
418 | sc->sc_ah->ah_channels[pos].chanmode = | |
419 | (curchan->band == IEEE80211_BAND_2GHZ) ? | |
420 | CHANNEL_G : CHANNEL_A; | |
f078f209 | 421 | |
8feceb67 VT |
422 | /* set h/w channel */ |
423 | if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) | |
424 | DPRINTF(sc, ATH_DBG_FATAL, | |
425 | "%s: Unable to set channel\n", | |
426 | __func__); | |
f078f209 | 427 | |
8feceb67 VT |
428 | ath_rate_newstate(sc, avp); |
429 | /* Update ratectrl about the new state */ | |
430 | ath_rc_node_update(hw, avp->rc_node); | |
6f255425 LR |
431 | |
432 | /* Start ANI */ | |
433 | mod_timer(&sc->sc_ani.timer, | |
434 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); | |
435 | ||
8feceb67 VT |
436 | } else { |
437 | DPRINTF(sc, ATH_DBG_CONFIG, | |
438 | "%s: Bss Info DISSOC\n", __func__); | |
439 | sc->sc_curaid = 0; | |
f078f209 | 440 | } |
8feceb67 | 441 | } |
f078f209 | 442 | |
8feceb67 VT |
443 | void ath_get_beaconconfig(struct ath_softc *sc, |
444 | int if_id, | |
445 | struct ath_beacon_config *conf) | |
446 | { | |
447 | struct ieee80211_hw *hw = sc->hw; | |
f078f209 | 448 | |
8feceb67 | 449 | /* fill in beacon config data */ |
f078f209 | 450 | |
8feceb67 VT |
451 | conf->beacon_interval = hw->conf.beacon_int; |
452 | conf->listen_interval = 100; | |
453 | conf->dtim_count = 1; | |
454 | conf->bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf->listen_interval; | |
f078f209 LR |
455 | } |
456 | ||
8feceb67 VT |
457 | void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, |
458 | struct ath_xmit_status *tx_status, struct ath_node *an) | |
f078f209 | 459 | { |
8feceb67 VT |
460 | struct ieee80211_hw *hw = sc->hw; |
461 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); | |
f078f209 | 462 | |
8feceb67 VT |
463 | DPRINTF(sc, ATH_DBG_XMIT, |
464 | "%s: TX complete: skb: %p\n", __func__, skb); | |
f078f209 | 465 | |
8feceb67 VT |
466 | if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK || |
467 | tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) { | |
468 | /* free driver's private data area of tx_info */ | |
469 | if (tx_info->driver_data[0] != NULL) | |
470 | kfree(tx_info->driver_data[0]); | |
471 | tx_info->driver_data[0] = NULL; | |
f078f209 LR |
472 | } |
473 | ||
8feceb67 VT |
474 | if (tx_status->flags & ATH_TX_BAR) { |
475 | tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; | |
476 | tx_status->flags &= ~ATH_TX_BAR; | |
477 | } | |
f078f209 | 478 | |
8feceb67 VT |
479 | if (tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY)) { |
480 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { | |
481 | /* Frame was not ACKed, but an ACK was expected */ | |
482 | tx_info->status.excessive_retries = 1; | |
483 | } | |
484 | } else { | |
485 | /* Frame was ACKed */ | |
486 | tx_info->flags |= IEEE80211_TX_STAT_ACK; | |
f078f209 LR |
487 | } |
488 | ||
8feceb67 | 489 | tx_info->status.retry_count = tx_status->retries; |
f078f209 | 490 | |
8feceb67 VT |
491 | ieee80211_tx_status(hw, skb); |
492 | if (an) | |
493 | ath_node_put(sc, an, ATH9K_BH_STATUS_CHANGE); | |
f078f209 LR |
494 | } |
495 | ||
8feceb67 VT |
496 | int _ath_rx_indicate(struct ath_softc *sc, |
497 | struct sk_buff *skb, | |
498 | struct ath_recv_status *status, | |
499 | u16 keyix) | |
f078f209 | 500 | { |
8feceb67 VT |
501 | struct ieee80211_hw *hw = sc->hw; |
502 | struct ath_node *an = NULL; | |
503 | struct ieee80211_rx_status rx_status; | |
504 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
505 | int hdrlen = ieee80211_get_hdrlen_from_skb(skb); | |
506 | int padsize; | |
507 | enum ATH_RX_TYPE st; | |
f078f209 | 508 | |
8feceb67 VT |
509 | /* see if any padding is done by the hw and remove it */ |
510 | if (hdrlen & 3) { | |
511 | padsize = hdrlen % 4; | |
512 | memmove(skb->data + padsize, skb->data, hdrlen); | |
513 | skb_pull(skb, padsize); | |
f078f209 LR |
514 | } |
515 | ||
8feceb67 VT |
516 | /* Prepare rx status */ |
517 | ath9k_rx_prepare(sc, skb, status, &rx_status); | |
86b89eed | 518 | |
8feceb67 VT |
519 | if (!(keyix == ATH9K_RXKEYIX_INVALID) && |
520 | !(status->flags & ATH_RX_DECRYPT_ERROR)) { | |
521 | rx_status.flag |= RX_FLAG_DECRYPTED; | |
522 | } else if ((le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_PROTECTED) | |
523 | && !(status->flags & ATH_RX_DECRYPT_ERROR) | |
524 | && skb->len >= hdrlen + 4) { | |
525 | keyix = skb->data[hdrlen + 3] >> 6; | |
86b89eed | 526 | |
8feceb67 VT |
527 | if (test_bit(keyix, sc->sc_keymap)) |
528 | rx_status.flag |= RX_FLAG_DECRYPTED; | |
529 | } | |
f078f209 | 530 | |
8feceb67 VT |
531 | spin_lock_bh(&sc->node_lock); |
532 | an = ath_node_find(sc, hdr->addr2); | |
533 | spin_unlock_bh(&sc->node_lock); | |
534 | ||
535 | if (an) { | |
536 | ath_rx_input(sc, an, | |
537 | hw->conf.ht_conf.ht_supported, | |
538 | skb, status, &st); | |
539 | } | |
540 | if (!an || (st != ATH_RX_CONSUMED)) | |
541 | __ieee80211_rx(hw, skb, &rx_status); | |
f078f209 LR |
542 | |
543 | return 0; | |
544 | } | |
545 | ||
8feceb67 VT |
546 | int ath_rx_subframe(struct ath_node *an, |
547 | struct sk_buff *skb, | |
548 | struct ath_recv_status *status) | |
f078f209 | 549 | { |
8feceb67 VT |
550 | struct ath_softc *sc = an->an_sc; |
551 | struct ieee80211_hw *hw = sc->hw; | |
552 | struct ieee80211_rx_status rx_status; | |
f078f209 | 553 | |
8feceb67 VT |
554 | /* Prepare rx status */ |
555 | ath9k_rx_prepare(sc, skb, status, &rx_status); | |
556 | if (!(status->flags & ATH_RX_DECRYPT_ERROR)) | |
557 | rx_status.flag |= RX_FLAG_DECRYPTED; | |
f078f209 | 558 | |
8feceb67 | 559 | __ieee80211_rx(hw, skb, &rx_status); |
f078f209 | 560 | |
8feceb67 VT |
561 | return 0; |
562 | } | |
f078f209 | 563 | |
8feceb67 VT |
564 | /********************************/ |
565 | /* LED functions */ | |
566 | /********************************/ | |
f078f209 | 567 | |
8feceb67 VT |
568 | static void ath_led_brightness(struct led_classdev *led_cdev, |
569 | enum led_brightness brightness) | |
570 | { | |
571 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | |
572 | struct ath_softc *sc = led->sc; | |
f078f209 | 573 | |
8feceb67 VT |
574 | switch (brightness) { |
575 | case LED_OFF: | |
576 | if (led->led_type == ATH_LED_ASSOC || | |
577 | led->led_type == ATH_LED_RADIO) | |
578 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
579 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
580 | (led->led_type == ATH_LED_RADIO) ? 1 : | |
581 | !!(sc->sc_flags & SC_OP_LED_ASSOCIATED)); | |
582 | break; | |
583 | case LED_FULL: | |
584 | if (led->led_type == ATH_LED_ASSOC) | |
585 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; | |
586 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
587 | break; | |
588 | default: | |
589 | break; | |
f078f209 | 590 | } |
8feceb67 | 591 | } |
f078f209 | 592 | |
8feceb67 VT |
593 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
594 | char *trigger) | |
595 | { | |
596 | int ret; | |
f078f209 | 597 | |
8feceb67 VT |
598 | led->sc = sc; |
599 | led->led_cdev.name = led->name; | |
600 | led->led_cdev.default_trigger = trigger; | |
601 | led->led_cdev.brightness_set = ath_led_brightness; | |
f078f209 | 602 | |
8feceb67 VT |
603 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
604 | if (ret) | |
605 | DPRINTF(sc, ATH_DBG_FATAL, | |
606 | "Failed to register led:%s", led->name); | |
607 | else | |
608 | led->registered = 1; | |
609 | return ret; | |
610 | } | |
f078f209 | 611 | |
8feceb67 VT |
612 | static void ath_unregister_led(struct ath_led *led) |
613 | { | |
614 | if (led->registered) { | |
615 | led_classdev_unregister(&led->led_cdev); | |
616 | led->registered = 0; | |
f078f209 | 617 | } |
f078f209 LR |
618 | } |
619 | ||
8feceb67 | 620 | static void ath_deinit_leds(struct ath_softc *sc) |
f078f209 | 621 | { |
8feceb67 VT |
622 | ath_unregister_led(&sc->assoc_led); |
623 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
624 | ath_unregister_led(&sc->tx_led); | |
625 | ath_unregister_led(&sc->rx_led); | |
626 | ath_unregister_led(&sc->radio_led); | |
627 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
628 | } | |
f078f209 | 629 | |
8feceb67 VT |
630 | static void ath_init_leds(struct ath_softc *sc) |
631 | { | |
632 | char *trigger; | |
633 | int ret; | |
f078f209 | 634 | |
8feceb67 VT |
635 | /* Configure gpio 1 for output */ |
636 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, | |
637 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
638 | /* LED off, active low */ | |
639 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
7dcfdcd9 | 640 | |
8feceb67 VT |
641 | trigger = ieee80211_get_radio_led_name(sc->hw); |
642 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), | |
643 | "ath9k-%s:radio", wiphy_name(sc->hw->wiphy)); | |
644 | ret = ath_register_led(sc, &sc->radio_led, trigger); | |
645 | sc->radio_led.led_type = ATH_LED_RADIO; | |
646 | if (ret) | |
647 | goto fail; | |
7dcfdcd9 | 648 | |
8feceb67 VT |
649 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
650 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), | |
651 | "ath9k-%s:assoc", wiphy_name(sc->hw->wiphy)); | |
652 | ret = ath_register_led(sc, &sc->assoc_led, trigger); | |
653 | sc->assoc_led.led_type = ATH_LED_ASSOC; | |
654 | if (ret) | |
655 | goto fail; | |
f078f209 | 656 | |
8feceb67 VT |
657 | trigger = ieee80211_get_tx_led_name(sc->hw); |
658 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), | |
659 | "ath9k-%s:tx", wiphy_name(sc->hw->wiphy)); | |
660 | ret = ath_register_led(sc, &sc->tx_led, trigger); | |
661 | sc->tx_led.led_type = ATH_LED_TX; | |
662 | if (ret) | |
663 | goto fail; | |
f078f209 | 664 | |
8feceb67 VT |
665 | trigger = ieee80211_get_rx_led_name(sc->hw); |
666 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), | |
667 | "ath9k-%s:rx", wiphy_name(sc->hw->wiphy)); | |
668 | ret = ath_register_led(sc, &sc->rx_led, trigger); | |
669 | sc->rx_led.led_type = ATH_LED_RX; | |
670 | if (ret) | |
671 | goto fail; | |
f078f209 | 672 | |
8feceb67 VT |
673 | return; |
674 | ||
675 | fail: | |
676 | ath_deinit_leds(sc); | |
f078f209 LR |
677 | } |
678 | ||
500c064d VT |
679 | #ifdef CONFIG_RFKILL |
680 | /*******************/ | |
681 | /* Rfkill */ | |
682 | /*******************/ | |
683 | ||
684 | static void ath_radio_enable(struct ath_softc *sc) | |
685 | { | |
686 | struct ath_hal *ah = sc->sc_ah; | |
687 | int status; | |
688 | ||
689 | spin_lock_bh(&sc->sc_resetlock); | |
690 | if (!ath9k_hw_reset(ah, ah->ah_curchan, | |
691 | sc->sc_ht_info.tx_chan_width, | |
692 | sc->sc_tx_chainmask, | |
693 | sc->sc_rx_chainmask, | |
694 | sc->sc_ht_extprotspacing, | |
695 | false, &status)) { | |
696 | DPRINTF(sc, ATH_DBG_FATAL, | |
697 | "%s: unable to reset channel %u (%uMhz) " | |
698 | "flags 0x%x hal status %u\n", __func__, | |
699 | ath9k_hw_mhz2ieee(ah, | |
700 | ah->ah_curchan->channel, | |
701 | ah->ah_curchan->channelFlags), | |
702 | ah->ah_curchan->channel, | |
703 | ah->ah_curchan->channelFlags, status); | |
704 | } | |
705 | spin_unlock_bh(&sc->sc_resetlock); | |
706 | ||
707 | ath_update_txpow(sc); | |
708 | if (ath_startrecv(sc) != 0) { | |
709 | DPRINTF(sc, ATH_DBG_FATAL, | |
710 | "%s: unable to restart recv logic\n", __func__); | |
711 | return; | |
712 | } | |
713 | ||
714 | if (sc->sc_flags & SC_OP_BEACONS) | |
715 | ath_beacon_config(sc, ATH_IF_ID_ANY); /* restart beacons */ | |
716 | ||
717 | /* Re-Enable interrupts */ | |
718 | ath9k_hw_set_interrupts(ah, sc->sc_imask); | |
719 | ||
720 | /* Enable LED */ | |
721 | ath9k_hw_cfg_output(ah, ATH_LED_PIN, | |
722 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
723 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); | |
724 | ||
725 | ieee80211_wake_queues(sc->hw); | |
726 | } | |
727 | ||
728 | static void ath_radio_disable(struct ath_softc *sc) | |
729 | { | |
730 | struct ath_hal *ah = sc->sc_ah; | |
731 | int status; | |
732 | ||
733 | ||
734 | ieee80211_stop_queues(sc->hw); | |
735 | ||
736 | /* Disable LED */ | |
737 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1); | |
738 | ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN); | |
739 | ||
740 | /* Disable interrupts */ | |
741 | ath9k_hw_set_interrupts(ah, 0); | |
742 | ||
743 | ath_draintxq(sc, false); /* clear pending tx frames */ | |
744 | ath_stoprecv(sc); /* turn off frame recv */ | |
745 | ath_flushrecv(sc); /* flush recv queue */ | |
746 | ||
747 | spin_lock_bh(&sc->sc_resetlock); | |
748 | if (!ath9k_hw_reset(ah, ah->ah_curchan, | |
749 | sc->sc_ht_info.tx_chan_width, | |
750 | sc->sc_tx_chainmask, | |
751 | sc->sc_rx_chainmask, | |
752 | sc->sc_ht_extprotspacing, | |
753 | false, &status)) { | |
754 | DPRINTF(sc, ATH_DBG_FATAL, | |
755 | "%s: unable to reset channel %u (%uMhz) " | |
756 | "flags 0x%x hal status %u\n", __func__, | |
757 | ath9k_hw_mhz2ieee(ah, | |
758 | ah->ah_curchan->channel, | |
759 | ah->ah_curchan->channelFlags), | |
760 | ah->ah_curchan->channel, | |
761 | ah->ah_curchan->channelFlags, status); | |
762 | } | |
763 | spin_unlock_bh(&sc->sc_resetlock); | |
764 | ||
765 | ath9k_hw_phy_disable(ah); | |
766 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); | |
767 | } | |
768 | ||
769 | static bool ath_is_rfkill_set(struct ath_softc *sc) | |
770 | { | |
771 | struct ath_hal *ah = sc->sc_ah; | |
772 | ||
773 | return ath9k_hw_gpio_get(ah, ah->ah_rfkill_gpio) == | |
774 | ah->ah_rfkill_polarity; | |
775 | } | |
776 | ||
777 | /* h/w rfkill poll function */ | |
778 | static void ath_rfkill_poll(struct work_struct *work) | |
779 | { | |
780 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
781 | rf_kill.rfkill_poll.work); | |
782 | bool radio_on; | |
783 | ||
784 | if (sc->sc_flags & SC_OP_INVALID) | |
785 | return; | |
786 | ||
787 | radio_on = !ath_is_rfkill_set(sc); | |
788 | ||
789 | /* | |
790 | * enable/disable radio only when there is a | |
791 | * state change in RF switch | |
792 | */ | |
793 | if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) { | |
794 | enum rfkill_state state; | |
795 | ||
796 | if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) { | |
797 | state = radio_on ? RFKILL_STATE_SOFT_BLOCKED | |
798 | : RFKILL_STATE_HARD_BLOCKED; | |
799 | } else if (radio_on) { | |
800 | ath_radio_enable(sc); | |
801 | state = RFKILL_STATE_UNBLOCKED; | |
802 | } else { | |
803 | ath_radio_disable(sc); | |
804 | state = RFKILL_STATE_HARD_BLOCKED; | |
805 | } | |
806 | ||
807 | if (state == RFKILL_STATE_HARD_BLOCKED) | |
808 | sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED; | |
809 | else | |
810 | sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED; | |
811 | ||
812 | rfkill_force_state(sc->rf_kill.rfkill, state); | |
813 | } | |
814 | ||
815 | queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll, | |
816 | msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL)); | |
817 | } | |
818 | ||
819 | /* s/w rfkill handler */ | |
820 | static int ath_sw_toggle_radio(void *data, enum rfkill_state state) | |
821 | { | |
822 | struct ath_softc *sc = data; | |
823 | ||
824 | switch (state) { | |
825 | case RFKILL_STATE_SOFT_BLOCKED: | |
826 | if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED | | |
827 | SC_OP_RFKILL_SW_BLOCKED))) | |
828 | ath_radio_disable(sc); | |
829 | sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED; | |
830 | return 0; | |
831 | case RFKILL_STATE_UNBLOCKED: | |
832 | if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) { | |
833 | sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED; | |
834 | if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) { | |
835 | DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the" | |
836 | "radio as it is disabled by h/w \n"); | |
837 | return -EPERM; | |
838 | } | |
839 | ath_radio_enable(sc); | |
840 | } | |
841 | return 0; | |
842 | default: | |
843 | return -EINVAL; | |
844 | } | |
845 | } | |
846 | ||
847 | /* Init s/w rfkill */ | |
848 | static int ath_init_sw_rfkill(struct ath_softc *sc) | |
849 | { | |
850 | sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy), | |
851 | RFKILL_TYPE_WLAN); | |
852 | if (!sc->rf_kill.rfkill) { | |
853 | DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n"); | |
854 | return -ENOMEM; | |
855 | } | |
856 | ||
857 | snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name), | |
858 | "ath9k-%s:rfkill", wiphy_name(sc->hw->wiphy)); | |
859 | sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name; | |
860 | sc->rf_kill.rfkill->data = sc; | |
861 | sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio; | |
862 | sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED; | |
863 | sc->rf_kill.rfkill->user_claim_unsupported = 1; | |
864 | ||
865 | return 0; | |
866 | } | |
867 | ||
868 | /* Deinitialize rfkill */ | |
869 | static void ath_deinit_rfkill(struct ath_softc *sc) | |
870 | { | |
871 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | |
872 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); | |
873 | ||
874 | if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) { | |
875 | rfkill_unregister(sc->rf_kill.rfkill); | |
876 | sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED; | |
877 | sc->rf_kill.rfkill = NULL; | |
878 | } | |
879 | } | |
880 | #endif /* CONFIG_RFKILL */ | |
881 | ||
8feceb67 | 882 | static int ath_detach(struct ath_softc *sc) |
f078f209 | 883 | { |
8feceb67 | 884 | struct ieee80211_hw *hw = sc->hw; |
f078f209 | 885 | |
8feceb67 | 886 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Detach ATH hw\n", __func__); |
f078f209 | 887 | |
8feceb67 VT |
888 | /* Deinit LED control */ |
889 | ath_deinit_leds(sc); | |
f078f209 | 890 | |
500c064d VT |
891 | #ifdef CONFIG_RFKILL |
892 | /* deinit rfkill */ | |
893 | ath_deinit_rfkill(sc); | |
894 | #endif | |
895 | ||
8feceb67 | 896 | /* Unregister hw */ |
f078f209 | 897 | |
8feceb67 | 898 | ieee80211_unregister_hw(hw); |
f078f209 | 899 | |
8feceb67 VT |
900 | /* unregister Rate control */ |
901 | ath_rate_control_unregister(); | |
f078f209 | 902 | |
8feceb67 | 903 | /* tx/rx cleanup */ |
f078f209 | 904 | |
8feceb67 VT |
905 | ath_rx_cleanup(sc); |
906 | ath_tx_cleanup(sc); | |
f078f209 | 907 | |
8feceb67 | 908 | /* Deinit */ |
f078f209 | 909 | |
8feceb67 VT |
910 | ath_deinit(sc); |
911 | ||
912 | return 0; | |
f078f209 LR |
913 | } |
914 | ||
8feceb67 VT |
915 | static int ath_attach(u16 devid, |
916 | struct ath_softc *sc) | |
f078f209 | 917 | { |
8feceb67 VT |
918 | struct ieee80211_hw *hw = sc->hw; |
919 | int error = 0; | |
f078f209 | 920 | |
8feceb67 | 921 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Attach ATH hw\n", __func__); |
f078f209 | 922 | |
8feceb67 VT |
923 | error = ath_init(devid, sc); |
924 | if (error != 0) | |
925 | return error; | |
f078f209 | 926 | |
8feceb67 | 927 | /* Init nodes */ |
f078f209 | 928 | |
8feceb67 VT |
929 | INIT_LIST_HEAD(&sc->node_list); |
930 | spin_lock_init(&sc->node_lock); | |
f078f209 | 931 | |
8feceb67 | 932 | /* get mac address from hardware and set in mac80211 */ |
f078f209 | 933 | |
8feceb67 | 934 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_myaddr); |
f078f209 | 935 | |
8feceb67 | 936 | /* setup channels and rates */ |
f078f209 | 937 | |
8feceb67 VT |
938 | sc->sbands[IEEE80211_BAND_2GHZ].channels = |
939 | sc->channels[IEEE80211_BAND_2GHZ]; | |
940 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = | |
941 | sc->rates[IEEE80211_BAND_2GHZ]; | |
942 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | |
f078f209 | 943 | |
8feceb67 VT |
944 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) |
945 | /* Setup HT capabilities for 2.4Ghz*/ | |
946 | setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_info); | |
f078f209 | 947 | |
8feceb67 VT |
948 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
949 | &sc->sbands[IEEE80211_BAND_2GHZ]; | |
f078f209 | 950 | |
8feceb67 VT |
951 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->ah_caps.wireless_modes)) { |
952 | sc->sbands[IEEE80211_BAND_5GHZ].channels = | |
953 | sc->channels[IEEE80211_BAND_5GHZ]; | |
954 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = | |
955 | sc->rates[IEEE80211_BAND_5GHZ]; | |
956 | sc->sbands[IEEE80211_BAND_5GHZ].band = | |
957 | IEEE80211_BAND_5GHZ; | |
f078f209 | 958 | |
8feceb67 VT |
959 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) |
960 | /* Setup HT capabilities for 5Ghz*/ | |
961 | setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_info); | |
f078f209 | 962 | |
8feceb67 VT |
963 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
964 | &sc->sbands[IEEE80211_BAND_5GHZ]; | |
965 | } | |
f078f209 | 966 | |
8feceb67 | 967 | /* FIXME: Have to figure out proper hw init values later */ |
f078f209 | 968 | |
8feceb67 VT |
969 | hw->queues = 4; |
970 | hw->ampdu_queues = 1; | |
f078f209 | 971 | |
8feceb67 VT |
972 | /* Register rate control */ |
973 | hw->rate_control_algorithm = "ath9k_rate_control"; | |
974 | error = ath_rate_control_register(); | |
975 | if (error != 0) { | |
976 | DPRINTF(sc, ATH_DBG_FATAL, | |
977 | "%s: Unable to register rate control " | |
978 | "algorithm:%d\n", __func__, error); | |
979 | ath_rate_control_unregister(); | |
980 | goto bad; | |
981 | } | |
f078f209 | 982 | |
8feceb67 VT |
983 | error = ieee80211_register_hw(hw); |
984 | if (error != 0) { | |
985 | ath_rate_control_unregister(); | |
986 | goto bad; | |
f078f209 | 987 | } |
8feceb67 VT |
988 | |
989 | /* Initialize LED control */ | |
990 | ath_init_leds(sc); | |
991 | ||
500c064d VT |
992 | #ifdef CONFIG_RFKILL |
993 | /* Initialze h/w Rfkill */ | |
994 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | |
995 | INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll); | |
996 | ||
997 | /* Initialize s/w rfkill */ | |
998 | if (ath_init_sw_rfkill(sc)) | |
999 | goto detach; | |
1000 | #endif | |
1001 | ||
8feceb67 VT |
1002 | /* initialize tx/rx engine */ |
1003 | ||
1004 | error = ath_tx_init(sc, ATH_TXBUF); | |
1005 | if (error != 0) | |
1006 | goto detach; | |
1007 | ||
1008 | error = ath_rx_init(sc, ATH_RXBUF); | |
1009 | if (error != 0) | |
1010 | goto detach; | |
1011 | ||
1012 | return 0; | |
1013 | detach: | |
1014 | ath_detach(sc); | |
1015 | bad: | |
1016 | return error; | |
f078f209 LR |
1017 | } |
1018 | ||
8feceb67 | 1019 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 LR |
1020 | { |
1021 | struct ath_softc *sc = hw->priv; | |
8feceb67 VT |
1022 | struct ieee80211_channel *curchan = hw->conf.channel; |
1023 | int error = 0, pos; | |
f078f209 | 1024 | |
8feceb67 VT |
1025 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Starting driver with " |
1026 | "initial channel: %d MHz\n", __func__, curchan->center_freq); | |
f078f209 | 1027 | |
8feceb67 | 1028 | /* setup initial channel */ |
f078f209 | 1029 | |
8feceb67 VT |
1030 | pos = ath_get_channel(sc, curchan); |
1031 | if (pos == -1) { | |
1032 | DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid channel\n", __func__); | |
1033 | return -EINVAL; | |
f078f209 LR |
1034 | } |
1035 | ||
8feceb67 VT |
1036 | sc->sc_ah->ah_channels[pos].chanmode = |
1037 | (curchan->band == IEEE80211_BAND_2GHZ) ? CHANNEL_G : CHANNEL_A; | |
1038 | ||
1039 | /* open ath_dev */ | |
1040 | error = ath_open(sc, &sc->sc_ah->ah_channels[pos]); | |
1041 | if (error) { | |
1042 | DPRINTF(sc, ATH_DBG_FATAL, | |
1043 | "%s: Unable to complete ath_open\n", __func__); | |
1044 | return error; | |
f078f209 | 1045 | } |
8feceb67 | 1046 | |
500c064d VT |
1047 | #ifdef CONFIG_RFKILL |
1048 | /* Start rfkill polling */ | |
1049 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | |
1050 | queue_delayed_work(sc->hw->workqueue, | |
1051 | &sc->rf_kill.rfkill_poll, 0); | |
1052 | ||
1053 | if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) { | |
1054 | if (rfkill_register(sc->rf_kill.rfkill)) { | |
1055 | DPRINTF(sc, ATH_DBG_FATAL, | |
1056 | "Unable to register rfkill\n"); | |
1057 | rfkill_free(sc->rf_kill.rfkill); | |
1058 | ||
1059 | /* Deinitialize the device */ | |
1060 | if (sc->pdev->irq) | |
1061 | free_irq(sc->pdev->irq, sc); | |
1062 | ath_detach(sc); | |
1063 | pci_iounmap(sc->pdev, sc->mem); | |
1064 | pci_release_region(sc->pdev, 0); | |
1065 | pci_disable_device(sc->pdev); | |
1066 | ieee80211_free_hw(hw); | |
1067 | return -EIO; | |
1068 | } else { | |
1069 | sc->sc_flags |= SC_OP_RFKILL_REGISTERED; | |
1070 | } | |
1071 | } | |
1072 | #endif | |
1073 | ||
8feceb67 VT |
1074 | ieee80211_wake_queues(hw); |
1075 | return 0; | |
f078f209 LR |
1076 | } |
1077 | ||
8feceb67 VT |
1078 | static int ath9k_tx(struct ieee80211_hw *hw, |
1079 | struct sk_buff *skb) | |
f078f209 | 1080 | { |
f078f209 | 1081 | struct ath_softc *sc = hw->priv; |
8feceb67 VT |
1082 | int hdrlen, padsize; |
1083 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
f078f209 | 1084 | |
8feceb67 VT |
1085 | /* |
1086 | * As a temporary workaround, assign seq# here; this will likely need | |
1087 | * to be cleaned up to work better with Beacon transmission and virtual | |
1088 | * BSSes. | |
1089 | */ | |
1090 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
1091 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
1092 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) | |
1093 | sc->seq_no += 0x10; | |
1094 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); | |
1095 | hdr->seq_ctrl |= cpu_to_le16(sc->seq_no); | |
1096 | } | |
f078f209 | 1097 | |
8feceb67 VT |
1098 | /* Add the padding after the header if this is not already done */ |
1099 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); | |
1100 | if (hdrlen & 3) { | |
1101 | padsize = hdrlen % 4; | |
1102 | if (skb_headroom(skb) < padsize) | |
1103 | return -1; | |
1104 | skb_push(skb, padsize); | |
1105 | memmove(skb->data, skb->data + padsize, hdrlen); | |
1106 | } | |
1107 | ||
1108 | DPRINTF(sc, ATH_DBG_XMIT, "%s: transmitting packet, skb: %p\n", | |
1109 | __func__, | |
1110 | skb); | |
1111 | ||
1112 | if (ath_tx_start(sc, skb) != 0) { | |
1113 | DPRINTF(sc, ATH_DBG_XMIT, "%s: TX failed\n", __func__); | |
1114 | dev_kfree_skb_any(skb); | |
1115 | /* FIXME: Check for proper return value from ATH_DEV */ | |
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | return 0; | |
f078f209 LR |
1120 | } |
1121 | ||
8feceb67 | 1122 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 LR |
1123 | { |
1124 | struct ath_softc *sc = hw->priv; | |
8feceb67 | 1125 | int error; |
f078f209 | 1126 | |
8feceb67 VT |
1127 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Driver halt\n", __func__); |
1128 | ||
1129 | error = ath_suspend(sc); | |
1130 | if (error) | |
1131 | DPRINTF(sc, ATH_DBG_CONFIG, | |
1132 | "%s: Device is no longer present\n", __func__); | |
1133 | ||
1134 | ieee80211_stop_queues(hw); | |
500c064d VT |
1135 | |
1136 | #ifdef CONFIG_RFKILL | |
1137 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | |
1138 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); | |
1139 | #endif | |
f078f209 LR |
1140 | } |
1141 | ||
8feceb67 VT |
1142 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
1143 | struct ieee80211_if_init_conf *conf) | |
f078f209 LR |
1144 | { |
1145 | struct ath_softc *sc = hw->priv; | |
8feceb67 | 1146 | int error, ic_opmode = 0; |
f078f209 | 1147 | |
8feceb67 VT |
1148 | /* Support only vap for now */ |
1149 | ||
1150 | if (sc->sc_nvaps) | |
1151 | return -ENOBUFS; | |
1152 | ||
1153 | switch (conf->type) { | |
05c914fe | 1154 | case NL80211_IFTYPE_STATION: |
8feceb67 | 1155 | ic_opmode = ATH9K_M_STA; |
f078f209 | 1156 | break; |
05c914fe | 1157 | case NL80211_IFTYPE_ADHOC: |
8feceb67 | 1158 | ic_opmode = ATH9K_M_IBSS; |
f078f209 | 1159 | break; |
05c914fe | 1160 | case NL80211_IFTYPE_AP: |
8feceb67 | 1161 | ic_opmode = ATH9K_M_HOSTAP; |
f078f209 LR |
1162 | break; |
1163 | default: | |
1164 | DPRINTF(sc, ATH_DBG_FATAL, | |
8feceb67 VT |
1165 | "%s: Interface type %d not yet supported\n", |
1166 | __func__, conf->type); | |
1167 | return -EOPNOTSUPP; | |
f078f209 LR |
1168 | } |
1169 | ||
8feceb67 VT |
1170 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Attach a VAP of type: %d\n", |
1171 | __func__, | |
1172 | ic_opmode); | |
1173 | ||
1174 | error = ath_vap_attach(sc, 0, conf->vif, ic_opmode); | |
1175 | if (error) { | |
1176 | DPRINTF(sc, ATH_DBG_FATAL, | |
1177 | "%s: Unable to attach vap, error: %d\n", | |
1178 | __func__, error); | |
1179 | return error; | |
1180 | } | |
1181 | ||
6f255425 LR |
1182 | if (conf->type == NL80211_IFTYPE_AP) { |
1183 | /* TODO: is this a suitable place to start ANI for AP mode? */ | |
1184 | /* Start ANI */ | |
1185 | mod_timer(&sc->sc_ani.timer, | |
1186 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); | |
1187 | } | |
1188 | ||
8feceb67 | 1189 | return 0; |
f078f209 LR |
1190 | } |
1191 | ||
8feceb67 VT |
1192 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
1193 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 1194 | { |
8feceb67 VT |
1195 | struct ath_softc *sc = hw->priv; |
1196 | struct ath_vap *avp; | |
1197 | int error; | |
f078f209 | 1198 | |
8feceb67 | 1199 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Detach VAP\n", __func__); |
f078f209 | 1200 | |
8feceb67 VT |
1201 | avp = sc->sc_vaps[0]; |
1202 | if (avp == NULL) { | |
1203 | DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid interface\n", | |
1204 | __func__); | |
1205 | return; | |
f078f209 LR |
1206 | } |
1207 | ||
8feceb67 VT |
1208 | #ifdef CONFIG_SLOW_ANT_DIV |
1209 | ath_slow_ant_div_stop(&sc->sc_antdiv); | |
1210 | #endif | |
6f255425 LR |
1211 | /* Stop ANI */ |
1212 | del_timer_sync(&sc->sc_ani.timer); | |
580f0b8a | 1213 | |
8feceb67 VT |
1214 | /* Update ratectrl */ |
1215 | ath_rate_newstate(sc, avp); | |
1216 | ||
1217 | /* Reclaim beacon resources */ | |
1218 | if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP || | |
1219 | sc->sc_ah->ah_opmode == ATH9K_M_IBSS) { | |
1220 | ath9k_hw_stoptxdma(sc->sc_ah, sc->sc_bhalq); | |
1221 | ath_beacon_return(sc, avp); | |
580f0b8a | 1222 | } |
f078f209 | 1223 | |
8feceb67 VT |
1224 | /* Set interrupt mask */ |
1225 | sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); | |
1226 | ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask & ~ATH9K_INT_GLOBAL); | |
1227 | sc->sc_flags &= ~SC_OP_BEACONS; | |
f078f209 | 1228 | |
8feceb67 VT |
1229 | error = ath_vap_detach(sc, 0); |
1230 | if (error) | |
1231 | DPRINTF(sc, ATH_DBG_FATAL, | |
1232 | "%s: Unable to detach vap, error: %d\n", | |
1233 | __func__, error); | |
f078f209 LR |
1234 | } |
1235 | ||
8feceb67 VT |
1236 | static int ath9k_config(struct ieee80211_hw *hw, |
1237 | struct ieee80211_conf *conf) | |
f078f209 | 1238 | { |
8feceb67 VT |
1239 | struct ath_softc *sc = hw->priv; |
1240 | struct ieee80211_channel *curchan = hw->conf.channel; | |
1241 | int pos; | |
f078f209 | 1242 | |
8feceb67 VT |
1243 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n", |
1244 | __func__, | |
1245 | curchan->center_freq); | |
f078f209 | 1246 | |
8feceb67 VT |
1247 | pos = ath_get_channel(sc, curchan); |
1248 | if (pos == -1) { | |
1249 | DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid channel\n", __func__); | |
1250 | return -EINVAL; | |
f078f209 | 1251 | } |
f078f209 | 1252 | |
8feceb67 VT |
1253 | sc->sc_ah->ah_channels[pos].chanmode = |
1254 | (curchan->band == IEEE80211_BAND_2GHZ) ? | |
1255 | CHANNEL_G : CHANNEL_A; | |
f078f209 | 1256 | |
8feceb67 VT |
1257 | if (sc->sc_curaid && hw->conf.ht_conf.ht_supported) |
1258 | sc->sc_ah->ah_channels[pos].chanmode = | |
1259 | ath_get_extchanmode(sc, curchan); | |
f078f209 | 1260 | |
8feceb67 | 1261 | sc->sc_config.txpowlimit = 2 * conf->power_level; |
f078f209 | 1262 | |
8feceb67 VT |
1263 | /* set h/w channel */ |
1264 | if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) | |
1265 | DPRINTF(sc, ATH_DBG_FATAL, "%s: Unable to set channel\n", | |
1266 | __func__); | |
f078f209 LR |
1267 | |
1268 | return 0; | |
1269 | } | |
1270 | ||
8feceb67 VT |
1271 | static int ath9k_config_interface(struct ieee80211_hw *hw, |
1272 | struct ieee80211_vif *vif, | |
1273 | struct ieee80211_if_conf *conf) | |
c83be688 | 1274 | { |
8feceb67 VT |
1275 | struct ath_softc *sc = hw->priv; |
1276 | struct ath_hal *ah = sc->sc_ah; | |
1277 | struct ath_vap *avp; | |
1278 | u32 rfilt = 0; | |
1279 | int error, i; | |
c83be688 | 1280 | |
8feceb67 VT |
1281 | avp = sc->sc_vaps[0]; |
1282 | if (avp == NULL) { | |
1283 | DPRINTF(sc, ATH_DBG_FATAL, "%s: Invalid interface\n", | |
1284 | __func__); | |
1285 | return -EINVAL; | |
c83be688 | 1286 | } |
c83be688 | 1287 | |
8feceb67 VT |
1288 | /* TODO: Need to decide which hw opmode to use for multi-interface |
1289 | * cases */ | |
05c914fe | 1290 | if (vif->type == NL80211_IFTYPE_AP && |
8feceb67 VT |
1291 | ah->ah_opmode != ATH9K_M_HOSTAP) { |
1292 | ah->ah_opmode = ATH9K_M_HOSTAP; | |
1293 | ath9k_hw_setopmode(ah); | |
1294 | ath9k_hw_write_associd(ah, sc->sc_myaddr, 0); | |
1295 | /* Request full reset to get hw opmode changed properly */ | |
1296 | sc->sc_flags |= SC_OP_FULL_RESET; | |
1297 | } | |
c83be688 | 1298 | |
8feceb67 VT |
1299 | if ((conf->changed & IEEE80211_IFCC_BSSID) && |
1300 | !is_zero_ether_addr(conf->bssid)) { | |
1301 | switch (vif->type) { | |
05c914fe JB |
1302 | case NL80211_IFTYPE_STATION: |
1303 | case NL80211_IFTYPE_ADHOC: | |
8feceb67 VT |
1304 | /* Update ratectrl about the new state */ |
1305 | ath_rate_newstate(sc, avp); | |
c83be688 | 1306 | |
8feceb67 VT |
1307 | /* Set BSSID */ |
1308 | memcpy(sc->sc_curbssid, conf->bssid, ETH_ALEN); | |
1309 | sc->sc_curaid = 0; | |
1310 | ath9k_hw_write_associd(sc->sc_ah, sc->sc_curbssid, | |
1311 | sc->sc_curaid); | |
c83be688 | 1312 | |
8feceb67 VT |
1313 | /* Set aggregation protection mode parameters */ |
1314 | sc->sc_config.ath_aggr_prot = 0; | |
c83be688 | 1315 | |
8feceb67 VT |
1316 | /* |
1317 | * Reset our TSF so that its value is lower than the | |
1318 | * beacon that we are trying to catch. | |
1319 | * Only then hw will update its TSF register with the | |
1320 | * new beacon. Reset the TSF before setting the BSSID | |
1321 | * to avoid allowing in any frames that would update | |
1322 | * our TSF only to have us clear it | |
1323 | * immediately thereafter. | |
1324 | */ | |
1325 | ath9k_hw_reset_tsf(sc->sc_ah); | |
c83be688 | 1326 | |
8feceb67 VT |
1327 | /* Disable BMISS interrupt when we're not associated */ |
1328 | ath9k_hw_set_interrupts(sc->sc_ah, | |
1329 | sc->sc_imask & | |
1330 | ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS)); | |
1331 | sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); | |
c83be688 | 1332 | |
8feceb67 | 1333 | DPRINTF(sc, ATH_DBG_CONFIG, |
e174961c | 1334 | "%s: RX filter 0x%x bssid %pM aid 0x%x\n", |
8feceb67 | 1335 | __func__, rfilt, |
e174961c | 1336 | sc->sc_curbssid, sc->sc_curaid); |
c83be688 | 1337 | |
8feceb67 VT |
1338 | /* need to reconfigure the beacon */ |
1339 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
c83be688 | 1340 | |
8feceb67 VT |
1341 | break; |
1342 | default: | |
1343 | break; | |
1344 | } | |
1345 | } | |
c83be688 | 1346 | |
8feceb67 | 1347 | if ((conf->changed & IEEE80211_IFCC_BEACON) && |
05c914fe JB |
1348 | ((vif->type == NL80211_IFTYPE_ADHOC) || |
1349 | (vif->type == NL80211_IFTYPE_AP))) { | |
8feceb67 VT |
1350 | /* |
1351 | * Allocate and setup the beacon frame. | |
1352 | * | |
1353 | * Stop any previous beacon DMA. This may be | |
1354 | * necessary, for example, when an ibss merge | |
1355 | * causes reconfiguration; we may be called | |
1356 | * with beacon transmission active. | |
1357 | */ | |
1358 | ath9k_hw_stoptxdma(sc->sc_ah, sc->sc_bhalq); | |
c83be688 | 1359 | |
8feceb67 VT |
1360 | error = ath_beacon_alloc(sc, 0); |
1361 | if (error != 0) | |
1362 | return error; | |
c83be688 | 1363 | |
8feceb67 VT |
1364 | ath_beacon_sync(sc, 0); |
1365 | } | |
c83be688 | 1366 | |
8feceb67 | 1367 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ |
05c914fe | 1368 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { |
8feceb67 VT |
1369 | for (i = 0; i < IEEE80211_WEP_NKID; i++) |
1370 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) | |
1371 | ath9k_hw_keysetmac(sc->sc_ah, | |
1372 | (u16)i, | |
1373 | sc->sc_curbssid); | |
1374 | } | |
c83be688 | 1375 | |
8feceb67 | 1376 | /* Only legacy IBSS for now */ |
05c914fe | 1377 | if (vif->type == NL80211_IFTYPE_ADHOC) |
8feceb67 | 1378 | ath_update_chainmask(sc, 0); |
f078f209 | 1379 | |
8feceb67 VT |
1380 | return 0; |
1381 | } | |
f078f209 | 1382 | |
8feceb67 VT |
1383 | #define SUPPORTED_FILTERS \ |
1384 | (FIF_PROMISC_IN_BSS | \ | |
1385 | FIF_ALLMULTI | \ | |
1386 | FIF_CONTROL | \ | |
1387 | FIF_OTHER_BSS | \ | |
1388 | FIF_BCN_PRBRESP_PROMISC | \ | |
1389 | FIF_FCSFAIL) | |
c83be688 | 1390 | |
8feceb67 VT |
1391 | /* FIXME: sc->sc_full_reset ? */ |
1392 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
1393 | unsigned int changed_flags, | |
1394 | unsigned int *total_flags, | |
1395 | int mc_count, | |
1396 | struct dev_mc_list *mclist) | |
1397 | { | |
1398 | struct ath_softc *sc = hw->priv; | |
1399 | u32 rfilt; | |
f078f209 | 1400 | |
8feceb67 VT |
1401 | changed_flags &= SUPPORTED_FILTERS; |
1402 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 1403 | |
8feceb67 VT |
1404 | sc->rx_filter = *total_flags; |
1405 | rfilt = ath_calcrxfilter(sc); | |
1406 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
f078f209 | 1407 | |
8feceb67 VT |
1408 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
1409 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
1410 | ath9k_hw_write_associd(sc->sc_ah, ath_bcast_mac, 0); | |
1411 | } | |
f078f209 | 1412 | |
8feceb67 VT |
1413 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set HW RX filter: 0x%x\n", |
1414 | __func__, sc->rx_filter); | |
1415 | } | |
f078f209 | 1416 | |
8feceb67 VT |
1417 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
1418 | struct ieee80211_vif *vif, | |
1419 | enum sta_notify_cmd cmd, | |
17741cdc | 1420 | struct ieee80211_sta *sta) |
8feceb67 VT |
1421 | { |
1422 | struct ath_softc *sc = hw->priv; | |
1423 | struct ath_node *an; | |
1424 | unsigned long flags; | |
f078f209 | 1425 | |
8feceb67 | 1426 | spin_lock_irqsave(&sc->node_lock, flags); |
17741cdc | 1427 | an = ath_node_find(sc, sta->addr); |
8feceb67 | 1428 | spin_unlock_irqrestore(&sc->node_lock, flags); |
f078f209 | 1429 | |
8feceb67 VT |
1430 | switch (cmd) { |
1431 | case STA_NOTIFY_ADD: | |
1432 | spin_lock_irqsave(&sc->node_lock, flags); | |
1433 | if (!an) { | |
17741cdc | 1434 | ath_node_attach(sc, sta->addr, 0); |
e174961c JB |
1435 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Attach a node: %pM\n", |
1436 | __func__, sta->addr); | |
8feceb67 | 1437 | } else { |
17741cdc | 1438 | ath_node_get(sc, sta->addr); |
8feceb67 VT |
1439 | } |
1440 | spin_unlock_irqrestore(&sc->node_lock, flags); | |
1441 | break; | |
1442 | case STA_NOTIFY_REMOVE: | |
1443 | if (!an) | |
1444 | DPRINTF(sc, ATH_DBG_FATAL, | |
1445 | "%s: Removal of a non-existent node\n", | |
1446 | __func__); | |
1447 | else { | |
1448 | ath_node_put(sc, an, ATH9K_BH_STATUS_INTACT); | |
e174961c | 1449 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: Put a node: %pM\n", |
8feceb67 | 1450 | __func__, |
e174961c | 1451 | sta->addr); |
8feceb67 VT |
1452 | } |
1453 | break; | |
1454 | default: | |
1455 | break; | |
1456 | } | |
f078f209 LR |
1457 | } |
1458 | ||
8feceb67 VT |
1459 | static int ath9k_conf_tx(struct ieee80211_hw *hw, |
1460 | u16 queue, | |
1461 | const struct ieee80211_tx_queue_params *params) | |
f078f209 | 1462 | { |
8feceb67 VT |
1463 | struct ath_softc *sc = hw->priv; |
1464 | struct ath9k_tx_queue_info qi; | |
1465 | int ret = 0, qnum; | |
f078f209 | 1466 | |
8feceb67 VT |
1467 | if (queue >= WME_NUM_AC) |
1468 | return 0; | |
f078f209 | 1469 | |
8feceb67 VT |
1470 | qi.tqi_aifs = params->aifs; |
1471 | qi.tqi_cwmin = params->cw_min; | |
1472 | qi.tqi_cwmax = params->cw_max; | |
1473 | qi.tqi_burstTime = params->txop; | |
1474 | qnum = ath_get_hal_qnum(queue, sc); | |
f078f209 | 1475 | |
8feceb67 VT |
1476 | DPRINTF(sc, ATH_DBG_CONFIG, |
1477 | "%s: Configure tx [queue/halq] [%d/%d], " | |
1478 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", | |
1479 | __func__, | |
1480 | queue, | |
1481 | qnum, | |
1482 | params->aifs, | |
1483 | params->cw_min, | |
1484 | params->cw_max, | |
1485 | params->txop); | |
f078f209 | 1486 | |
8feceb67 VT |
1487 | ret = ath_txq_update(sc, qnum, &qi); |
1488 | if (ret) | |
1489 | DPRINTF(sc, ATH_DBG_FATAL, | |
1490 | "%s: TXQ Update failed\n", __func__); | |
f078f209 | 1491 | |
8feceb67 VT |
1492 | return ret; |
1493 | } | |
f078f209 | 1494 | |
8feceb67 VT |
1495 | static int ath9k_set_key(struct ieee80211_hw *hw, |
1496 | enum set_key_cmd cmd, | |
1497 | const u8 *local_addr, | |
1498 | const u8 *addr, | |
1499 | struct ieee80211_key_conf *key) | |
1500 | { | |
1501 | struct ath_softc *sc = hw->priv; | |
1502 | int ret = 0; | |
f078f209 | 1503 | |
8feceb67 | 1504 | DPRINTF(sc, ATH_DBG_KEYCACHE, " %s: Set HW Key\n", __func__); |
f078f209 | 1505 | |
8feceb67 VT |
1506 | switch (cmd) { |
1507 | case SET_KEY: | |
1508 | ret = ath_key_config(sc, addr, key); | |
1509 | if (!ret) { | |
1510 | set_bit(key->keyidx, sc->sc_keymap); | |
1511 | key->hw_key_idx = key->keyidx; | |
1512 | /* push IV and Michael MIC generation to stack */ | |
1513 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1514 | if (key->alg == ALG_TKIP) | |
1515 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1516 | } | |
1517 | break; | |
1518 | case DISABLE_KEY: | |
1519 | ath_key_delete(sc, key); | |
1520 | clear_bit(key->keyidx, sc->sc_keymap); | |
8feceb67 VT |
1521 | break; |
1522 | default: | |
1523 | ret = -EINVAL; | |
1524 | } | |
f078f209 | 1525 | |
8feceb67 VT |
1526 | return ret; |
1527 | } | |
f078f209 | 1528 | |
8feceb67 VT |
1529 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
1530 | struct ieee80211_vif *vif, | |
1531 | struct ieee80211_bss_conf *bss_conf, | |
1532 | u32 changed) | |
1533 | { | |
1534 | struct ath_softc *sc = hw->priv; | |
f078f209 | 1535 | |
8feceb67 VT |
1536 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
1537 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed PREAMBLE %d\n", | |
1538 | __func__, | |
1539 | bss_conf->use_short_preamble); | |
1540 | if (bss_conf->use_short_preamble) | |
1541 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
1542 | else | |
1543 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
1544 | } | |
f078f209 | 1545 | |
8feceb67 VT |
1546 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
1547 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed CTS PROT %d\n", | |
1548 | __func__, | |
1549 | bss_conf->use_cts_prot); | |
1550 | if (bss_conf->use_cts_prot && | |
1551 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
1552 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
1553 | else | |
1554 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
1555 | } | |
f078f209 | 1556 | |
8feceb67 VT |
1557 | if (changed & BSS_CHANGED_HT) { |
1558 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed HT %d\n", | |
1559 | __func__, | |
1560 | bss_conf->assoc_ht); | |
1561 | ath9k_ht_conf(sc, bss_conf); | |
f078f209 LR |
1562 | } |
1563 | ||
8feceb67 VT |
1564 | if (changed & BSS_CHANGED_ASSOC) { |
1565 | DPRINTF(sc, ATH_DBG_CONFIG, "%s: BSS Changed ASSOC %d\n", | |
1566 | __func__, | |
1567 | bss_conf->assoc); | |
1568 | ath9k_bss_assoc_info(sc, bss_conf); | |
1569 | } | |
1570 | } | |
f078f209 | 1571 | |
8feceb67 VT |
1572 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
1573 | { | |
1574 | u64 tsf; | |
1575 | struct ath_softc *sc = hw->priv; | |
1576 | struct ath_hal *ah = sc->sc_ah; | |
f078f209 | 1577 | |
8feceb67 | 1578 | tsf = ath9k_hw_gettsf64(ah); |
f078f209 | 1579 | |
8feceb67 VT |
1580 | return tsf; |
1581 | } | |
f078f209 | 1582 | |
8feceb67 VT |
1583 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
1584 | { | |
1585 | struct ath_softc *sc = hw->priv; | |
1586 | struct ath_hal *ah = sc->sc_ah; | |
c83be688 | 1587 | |
8feceb67 VT |
1588 | ath9k_hw_reset_tsf(ah); |
1589 | } | |
f078f209 | 1590 | |
8feceb67 VT |
1591 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
1592 | enum ieee80211_ampdu_mlme_action action, | |
17741cdc JB |
1593 | struct ieee80211_sta *sta, |
1594 | u16 tid, u16 *ssn) | |
8feceb67 VT |
1595 | { |
1596 | struct ath_softc *sc = hw->priv; | |
1597 | int ret = 0; | |
f078f209 | 1598 | |
8feceb67 VT |
1599 | switch (action) { |
1600 | case IEEE80211_AMPDU_RX_START: | |
17741cdc | 1601 | ret = ath_rx_aggr_start(sc, sta->addr, tid, ssn); |
8feceb67 VT |
1602 | if (ret < 0) |
1603 | DPRINTF(sc, ATH_DBG_FATAL, | |
1604 | "%s: Unable to start RX aggregation\n", | |
1605 | __func__); | |
1606 | break; | |
1607 | case IEEE80211_AMPDU_RX_STOP: | |
17741cdc | 1608 | ret = ath_rx_aggr_stop(sc, sta->addr, tid); |
8feceb67 VT |
1609 | if (ret < 0) |
1610 | DPRINTF(sc, ATH_DBG_FATAL, | |
1611 | "%s: Unable to stop RX aggregation\n", | |
1612 | __func__); | |
1613 | break; | |
1614 | case IEEE80211_AMPDU_TX_START: | |
17741cdc | 1615 | ret = ath_tx_aggr_start(sc, sta->addr, tid, ssn); |
8feceb67 VT |
1616 | if (ret < 0) |
1617 | DPRINTF(sc, ATH_DBG_FATAL, | |
1618 | "%s: Unable to start TX aggregation\n", | |
1619 | __func__); | |
1620 | else | |
17741cdc | 1621 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 VT |
1622 | break; |
1623 | case IEEE80211_AMPDU_TX_STOP: | |
17741cdc | 1624 | ret = ath_tx_aggr_stop(sc, sta->addr, tid); |
8feceb67 VT |
1625 | if (ret < 0) |
1626 | DPRINTF(sc, ATH_DBG_FATAL, | |
1627 | "%s: Unable to stop TX aggregation\n", | |
1628 | __func__); | |
f078f209 | 1629 | |
17741cdc | 1630 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 VT |
1631 | break; |
1632 | default: | |
1633 | DPRINTF(sc, ATH_DBG_FATAL, | |
1634 | "%s: Unknown AMPDU action\n", __func__); | |
1635 | } | |
1636 | ||
1637 | return ret; | |
f078f209 LR |
1638 | } |
1639 | ||
4233df6b JB |
1640 | static int ath9k_no_fragmentation(struct ieee80211_hw *hw, u32 value) |
1641 | { | |
1642 | return -EOPNOTSUPP; | |
1643 | } | |
1644 | ||
8feceb67 VT |
1645 | static struct ieee80211_ops ath9k_ops = { |
1646 | .tx = ath9k_tx, | |
1647 | .start = ath9k_start, | |
1648 | .stop = ath9k_stop, | |
1649 | .add_interface = ath9k_add_interface, | |
1650 | .remove_interface = ath9k_remove_interface, | |
1651 | .config = ath9k_config, | |
1652 | .config_interface = ath9k_config_interface, | |
1653 | .configure_filter = ath9k_configure_filter, | |
1654 | .get_stats = NULL, | |
1655 | .sta_notify = ath9k_sta_notify, | |
1656 | .conf_tx = ath9k_conf_tx, | |
1657 | .get_tx_stats = NULL, | |
1658 | .bss_info_changed = ath9k_bss_info_changed, | |
1659 | .set_tim = NULL, | |
1660 | .set_key = ath9k_set_key, | |
1661 | .hw_scan = NULL, | |
1662 | .get_tkip_seq = NULL, | |
1663 | .set_rts_threshold = NULL, | |
1664 | .set_frag_threshold = NULL, | |
1665 | .set_retry_limit = NULL, | |
1666 | .get_tsf = ath9k_get_tsf, | |
1667 | .reset_tsf = ath9k_reset_tsf, | |
1668 | .tx_last_beacon = NULL, | |
4233df6b JB |
1669 | .ampdu_action = ath9k_ampdu_action, |
1670 | .set_frag_threshold = ath9k_no_fragmentation, | |
8feceb67 VT |
1671 | }; |
1672 | ||
f078f209 LR |
1673 | static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
1674 | { | |
1675 | void __iomem *mem; | |
1676 | struct ath_softc *sc; | |
1677 | struct ieee80211_hw *hw; | |
1678 | const char *athname; | |
1679 | u8 csz; | |
1680 | u32 val; | |
1681 | int ret = 0; | |
1682 | ||
1683 | if (pci_enable_device(pdev)) | |
1684 | return -EIO; | |
1685 | ||
1686 | /* XXX 32-bit addressing only */ | |
1687 | if (pci_set_dma_mask(pdev, 0xffffffff)) { | |
1688 | printk(KERN_ERR "ath_pci: 32-bit DMA not available\n"); | |
1689 | ret = -ENODEV; | |
1690 | goto bad; | |
1691 | } | |
1692 | ||
1693 | /* | |
1694 | * Cache line size is used to size and align various | |
1695 | * structures used to communicate with the hardware. | |
1696 | */ | |
1697 | pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz); | |
1698 | if (csz == 0) { | |
1699 | /* | |
1700 | * Linux 2.4.18 (at least) writes the cache line size | |
1701 | * register as a 16-bit wide register which is wrong. | |
1702 | * We must have this setup properly for rx buffer | |
1703 | * DMA to work so force a reasonable value here if it | |
1704 | * comes up zero. | |
1705 | */ | |
1706 | csz = L1_CACHE_BYTES / sizeof(u32); | |
1707 | pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz); | |
1708 | } | |
1709 | /* | |
1710 | * The default setting of latency timer yields poor results, | |
1711 | * set it to the value used by other systems. It may be worth | |
1712 | * tweaking this setting more. | |
1713 | */ | |
1714 | pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8); | |
1715 | ||
1716 | pci_set_master(pdev); | |
1717 | ||
1718 | /* | |
1719 | * Disable the RETRY_TIMEOUT register (0x41) to keep | |
1720 | * PCI Tx retries from interfering with C3 CPU state. | |
1721 | */ | |
1722 | pci_read_config_dword(pdev, 0x40, &val); | |
1723 | if ((val & 0x0000ff00) != 0) | |
1724 | pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); | |
1725 | ||
1726 | ret = pci_request_region(pdev, 0, "ath9k"); | |
1727 | if (ret) { | |
1728 | dev_err(&pdev->dev, "PCI memory region reserve error\n"); | |
1729 | ret = -ENODEV; | |
1730 | goto bad; | |
1731 | } | |
1732 | ||
1733 | mem = pci_iomap(pdev, 0, 0); | |
1734 | if (!mem) { | |
1735 | printk(KERN_ERR "PCI memory map error\n") ; | |
1736 | ret = -EIO; | |
1737 | goto bad1; | |
1738 | } | |
1739 | ||
1740 | hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops); | |
1741 | if (hw == NULL) { | |
1742 | printk(KERN_ERR "ath_pci: no memory for ieee80211_hw\n"); | |
1743 | goto bad2; | |
1744 | } | |
1745 | ||
19b73c7f | 1746 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
e022edbd | 1747 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
19b73c7f | 1748 | IEEE80211_HW_SIGNAL_DBM | |
f078f209 LR |
1749 | IEEE80211_HW_NOISE_DBM; |
1750 | ||
f59ac048 LR |
1751 | hw->wiphy->interface_modes = |
1752 | BIT(NL80211_IFTYPE_AP) | | |
1753 | BIT(NL80211_IFTYPE_STATION) | | |
1754 | BIT(NL80211_IFTYPE_ADHOC); | |
1755 | ||
f078f209 LR |
1756 | SET_IEEE80211_DEV(hw, &pdev->dev); |
1757 | pci_set_drvdata(pdev, hw); | |
1758 | ||
1759 | sc = hw->priv; | |
1760 | sc->hw = hw; | |
1761 | sc->pdev = pdev; | |
1762 | sc->mem = mem; | |
1763 | ||
1764 | if (ath_attach(id->device, sc) != 0) { | |
1765 | ret = -ENODEV; | |
1766 | goto bad3; | |
1767 | } | |
1768 | ||
1769 | /* setup interrupt service routine */ | |
1770 | ||
1771 | if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) { | |
1772 | printk(KERN_ERR "%s: request_irq failed\n", | |
1773 | wiphy_name(hw->wiphy)); | |
1774 | ret = -EIO; | |
1775 | goto bad4; | |
1776 | } | |
1777 | ||
1778 | athname = ath9k_hw_probe(id->vendor, id->device); | |
1779 | ||
1780 | printk(KERN_INFO "%s: %s: mem=0x%lx, irq=%d\n", | |
1781 | wiphy_name(hw->wiphy), | |
1782 | athname ? athname : "Atheros ???", | |
1783 | (unsigned long)mem, pdev->irq); | |
1784 | ||
1785 | return 0; | |
1786 | bad4: | |
1787 | ath_detach(sc); | |
1788 | bad3: | |
1789 | ieee80211_free_hw(hw); | |
1790 | bad2: | |
1791 | pci_iounmap(pdev, mem); | |
1792 | bad1: | |
1793 | pci_release_region(pdev, 0); | |
1794 | bad: | |
1795 | pci_disable_device(pdev); | |
1796 | return ret; | |
1797 | } | |
1798 | ||
1799 | static void ath_pci_remove(struct pci_dev *pdev) | |
1800 | { | |
1801 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); | |
1802 | struct ath_softc *sc = hw->priv; | |
6115e855 | 1803 | enum ath9k_int status; |
f078f209 | 1804 | |
6115e855 SB |
1805 | if (pdev->irq) { |
1806 | ath9k_hw_set_interrupts(sc->sc_ah, 0); | |
1807 | /* clear the ISR */ | |
1808 | ath9k_hw_getisr(sc->sc_ah, &status); | |
b262e603 | 1809 | sc->sc_flags |= SC_OP_INVALID; |
f078f209 | 1810 | free_irq(pdev->irq, sc); |
6115e855 | 1811 | } |
f078f209 | 1812 | ath_detach(sc); |
6115e855 | 1813 | |
f078f209 LR |
1814 | pci_iounmap(pdev, sc->mem); |
1815 | pci_release_region(pdev, 0); | |
1816 | pci_disable_device(pdev); | |
1817 | ieee80211_free_hw(hw); | |
1818 | } | |
1819 | ||
1820 | #ifdef CONFIG_PM | |
1821 | ||
1822 | static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state) | |
1823 | { | |
c83be688 VT |
1824 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); |
1825 | struct ath_softc *sc = hw->priv; | |
1826 | ||
1827 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
500c064d VT |
1828 | |
1829 | #ifdef CONFIG_RFKILL | |
1830 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | |
1831 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); | |
1832 | #endif | |
1833 | ||
f078f209 LR |
1834 | pci_save_state(pdev); |
1835 | pci_disable_device(pdev); | |
1836 | pci_set_power_state(pdev, 3); | |
1837 | ||
1838 | return 0; | |
1839 | } | |
1840 | ||
1841 | static int ath_pci_resume(struct pci_dev *pdev) | |
1842 | { | |
c83be688 VT |
1843 | struct ieee80211_hw *hw = pci_get_drvdata(pdev); |
1844 | struct ath_softc *sc = hw->priv; | |
f078f209 LR |
1845 | u32 val; |
1846 | int err; | |
1847 | ||
1848 | err = pci_enable_device(pdev); | |
1849 | if (err) | |
1850 | return err; | |
1851 | pci_restore_state(pdev); | |
1852 | /* | |
1853 | * Suspend/Resume resets the PCI configuration space, so we have to | |
1854 | * re-disable the RETRY_TIMEOUT register (0x41) to keep | |
1855 | * PCI Tx retries from interfering with C3 CPU state | |
1856 | */ | |
1857 | pci_read_config_dword(pdev, 0x40, &val); | |
1858 | if ((val & 0x0000ff00) != 0) | |
1859 | pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); | |
1860 | ||
c83be688 VT |
1861 | /* Enable LED */ |
1862 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, | |
1863 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1864 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
1865 | ||
500c064d VT |
1866 | #ifdef CONFIG_RFKILL |
1867 | /* | |
1868 | * check the h/w rfkill state on resume | |
1869 | * and start the rfkill poll timer | |
1870 | */ | |
1871 | if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | |
1872 | queue_delayed_work(sc->hw->workqueue, | |
1873 | &sc->rf_kill.rfkill_poll, 0); | |
1874 | #endif | |
1875 | ||
f078f209 LR |
1876 | return 0; |
1877 | } | |
1878 | ||
1879 | #endif /* CONFIG_PM */ | |
1880 | ||
1881 | MODULE_DEVICE_TABLE(pci, ath_pci_id_table); | |
1882 | ||
1883 | static struct pci_driver ath_pci_driver = { | |
1884 | .name = "ath9k", | |
1885 | .id_table = ath_pci_id_table, | |
1886 | .probe = ath_pci_probe, | |
1887 | .remove = ath_pci_remove, | |
1888 | #ifdef CONFIG_PM | |
1889 | .suspend = ath_pci_suspend, | |
1890 | .resume = ath_pci_resume, | |
1891 | #endif /* CONFIG_PM */ | |
1892 | }; | |
1893 | ||
1894 | static int __init init_ath_pci(void) | |
1895 | { | |
1896 | printk(KERN_INFO "%s: %s\n", dev_info, ATH_PCI_VERSION); | |
1897 | ||
1898 | if (pci_register_driver(&ath_pci_driver) < 0) { | |
1899 | printk(KERN_ERR | |
1900 | "ath_pci: No devices found, driver not installed.\n"); | |
1901 | pci_unregister_driver(&ath_pci_driver); | |
1902 | return -ENODEV; | |
1903 | } | |
1904 | ||
1905 | return 0; | |
1906 | } | |
1907 | module_init(init_ath_pci); | |
1908 | ||
1909 | static void __exit exit_ath_pci(void) | |
1910 | { | |
1911 | pci_unregister_driver(&ath_pci_driver); | |
1912 | printk(KERN_INFO "%s: driver unloaded\n", dev_info); | |
1913 | } | |
1914 | module_exit(exit_ath_pci); |