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[B43LEGACY]: add mac80211-based driver for legacy BCM43xx devices
[deliverable/linux.git] / drivers / net / wireless / b43legacy / xmit.c
CommitLineData
75388acd
LF		 1/*
2
3 Broadcom B43legacy wireless driver
4
5 Transmission (TX/RX) related functions.
6
7 Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
8 Copyright (C) 2005 Stefano Brivio <st3@riseup.net>
9 Copyright (C) 2005, 2006 Michael Buesch <mb@bu3sch.de>
10 Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
11 Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
12 Copyright (C) 2007 Larry Finger <Larry.Finger@lwfinger.net>
13
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
18
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
23
24 You should have received a copy of the GNU General Public License
25 along with this program; see the file COPYING. If not, write to
26 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
27 Boston, MA 02110-1301, USA.
28
29*/
30
31#include <net/dst.h>
32
33#include "xmit.h"
34#include "phy.h"
35#include "dma.h"
36#include "pio.h"
37
38
39/* Extract the bitrate out of a CCK PLCP header. */
40static u8 b43legacy_plcp_get_bitrate_cck(struct b43legacy_plcp_hdr6 *plcp)
41{
42 switch (plcp->raw[0]) {
43 case 0x0A:
44 return B43legacy_CCK_RATE_1MB;
45 case 0x14:
46 return B43legacy_CCK_RATE_2MB;
47 case 0x37:
48 return B43legacy_CCK_RATE_5MB;
49 case 0x6E:
50 return B43legacy_CCK_RATE_11MB;
51 }
52 B43legacy_BUG_ON(1);
53 return 0;
54}
55
56/* Extract the bitrate out of an OFDM PLCP header. */
57static u8 b43legacy_plcp_get_bitrate_ofdm(struct b43legacy_plcp_hdr6 *plcp)
58{
59 switch (plcp->raw[0] & 0xF) {
60 case 0xB:
61 return B43legacy_OFDM_RATE_6MB;
62 case 0xF:
63 return B43legacy_OFDM_RATE_9MB;
64 case 0xA:
65 return B43legacy_OFDM_RATE_12MB;
66 case 0xE:
67 return B43legacy_OFDM_RATE_18MB;
68 case 0x9:
69 return B43legacy_OFDM_RATE_24MB;
70 case 0xD:
71 return B43legacy_OFDM_RATE_36MB;
72 case 0x8:
73 return B43legacy_OFDM_RATE_48MB;
74 case 0xC:
75 return B43legacy_OFDM_RATE_54MB;
76 }
77 B43legacy_BUG_ON(1);
78 return 0;
79}
80
81u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate)
82{
83 switch (bitrate) {
84 case B43legacy_CCK_RATE_1MB:
85 return 0x0A;
86 case B43legacy_CCK_RATE_2MB:
87 return 0x14;
88 case B43legacy_CCK_RATE_5MB:
89 return 0x37;
90 case B43legacy_CCK_RATE_11MB:
91 return 0x6E;
92 }
93 B43legacy_BUG_ON(1);
94 return 0;
95}
96
97u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate)
98{
99 switch (bitrate) {
100 case B43legacy_OFDM_RATE_6MB:
101 return 0xB;
102 case B43legacy_OFDM_RATE_9MB:
103 return 0xF;
104 case B43legacy_OFDM_RATE_12MB:
105 return 0xA;
106 case B43legacy_OFDM_RATE_18MB:
107 return 0xE;
108 case B43legacy_OFDM_RATE_24MB:
109 return 0x9;
110 case B43legacy_OFDM_RATE_36MB:
111 return 0xD;
112 case B43legacy_OFDM_RATE_48MB:
113 return 0x8;
114 case B43legacy_OFDM_RATE_54MB:
115 return 0xC;
116 }
117 B43legacy_BUG_ON(1);
118 return 0;
119}
120
121void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
122 const u16 octets, const u8 bitrate)
123{
124 __le32 *data = &(plcp->data);
125 __u8 *raw = plcp->raw;
126
127 if (b43legacy_is_ofdm_rate(bitrate)) {
128 u16 d;
129
130 d = b43legacy_plcp_get_ratecode_ofdm(bitrate);
131 B43legacy_WARN_ON(octets & 0xF000);
132 d |= (octets << 5);
133 *data = cpu_to_le32(d);
134 } else {
135 u32 plen;
136
137 plen = octets * 16 / bitrate;
138 if ((octets * 16 % bitrate) > 0) {
139 plen++;
140 if ((bitrate == B43legacy_CCK_RATE_11MB)
141 && ((octets * 8 % 11) < 4))
142 raw[1] = 0x84;
143 else
144 raw[1] = 0x04;
145 } else
146 raw[1] = 0x04;
147 *data |= cpu_to_le32(plen << 16);
148 raw[0] = b43legacy_plcp_get_ratecode_cck(bitrate);
149 }
150}
151
152static u8 b43legacy_calc_fallback_rate(u8 bitrate)
153{
154 switch (bitrate) {
155 case B43legacy_CCK_RATE_1MB:
156 return B43legacy_CCK_RATE_1MB;
157 case B43legacy_CCK_RATE_2MB:
158 return B43legacy_CCK_RATE_1MB;
159 case B43legacy_CCK_RATE_5MB:
160 return B43legacy_CCK_RATE_2MB;
161 case B43legacy_CCK_RATE_11MB:
162 return B43legacy_CCK_RATE_5MB;
163 case B43legacy_OFDM_RATE_6MB:
164 return B43legacy_CCK_RATE_5MB;
165 case B43legacy_OFDM_RATE_9MB:
166 return B43legacy_OFDM_RATE_6MB;
167 case B43legacy_OFDM_RATE_12MB:
168 return B43legacy_OFDM_RATE_9MB;
169 case B43legacy_OFDM_RATE_18MB:
170 return B43legacy_OFDM_RATE_12MB;
171 case B43legacy_OFDM_RATE_24MB:
172 return B43legacy_OFDM_RATE_18MB;
173 case B43legacy_OFDM_RATE_36MB:
174 return B43legacy_OFDM_RATE_24MB;
175 case B43legacy_OFDM_RATE_48MB:
176 return B43legacy_OFDM_RATE_36MB;
177 case B43legacy_OFDM_RATE_54MB:
178 return B43legacy_OFDM_RATE_48MB;
179 }
180 B43legacy_BUG_ON(1);
181 return 0;
182}
183
184static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
185 struct b43legacy_txhdr_fw3 *txhdr,
186 const unsigned char *fragment_data,
187 unsigned int fragment_len,
188 const struct ieee80211_tx_control *txctl,
189 u16 cookie)
190{
191 const struct ieee80211_hdr *wlhdr;
192 int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT));
193 u16 fctl;
194 u8 rate;
195 u8 rate_fb;
196 int rate_ofdm;
197 int rate_fb_ofdm;
198 unsigned int plcp_fragment_len;
199 u32 mac_ctl = 0;
200 u16 phy_ctl = 0;
201
202 wlhdr = (const struct ieee80211_hdr *)fragment_data;
203 fctl = le16_to_cpu(wlhdr->frame_control);
204
205 memset(txhdr, 0, sizeof(*txhdr));
206
207 rate = txctl->tx_rate;
208 rate_ofdm = b43legacy_is_ofdm_rate(rate);
209 rate_fb = (txctl->alt_retry_rate == -1) ? rate : txctl->alt_retry_rate;
210 rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb);
211
212 txhdr->mac_frame_ctl = wlhdr->frame_control;
213 memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
214
215 /* Calculate duration for fallback rate */
216 if ((rate_fb == rate) ||
217 (wlhdr->duration_id & cpu_to_le16(0x8000)) ||
218 (wlhdr->duration_id == cpu_to_le16(0))) {
219 /* If the fallback rate equals the normal rate or the
220 * dur_id field contains an AID, CFP magic or 0,
221 * use the original dur_id field. */
222 txhdr->dur_fb = wlhdr->duration_id;
223 } else {
224 int fbrate_base100kbps = B43legacy_RATE_TO_100KBPS(rate_fb);
225 txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
226 dev->wl->if_id,
227 fragment_len,
228 fbrate_base100kbps);
229 }
230
231 plcp_fragment_len = fragment_len + FCS_LEN;
232 if (use_encryption) {
233 u8 key_idx = (u16)(txctl->key_idx);
234 struct b43legacy_key *key;
235 int wlhdr_len;
236 size_t iv_len;
237
238 B43legacy_WARN_ON(key_idx >= dev->max_nr_keys);
239 key = &(dev->key[key_idx]);
240
241 if (key->enabled) {
242 /* Hardware appends ICV. */
243 plcp_fragment_len += txctl->icv_len;
244
245 key_idx = b43legacy_kidx_to_fw(dev, key_idx);
246 mac_ctl |= (key_idx << B43legacy_TX4_MAC_KEYIDX_SHIFT) &
247 B43legacy_TX4_MAC_KEYIDX;
248 mac_ctl |= (key->algorithm <<
249 B43legacy_TX4_MAC_KEYALG_SHIFT) &
250 B43legacy_TX4_MAC_KEYALG;
251 wlhdr_len = ieee80211_get_hdrlen(fctl);
252 iv_len = min((size_t)txctl->iv_len,
253 ARRAY_SIZE(txhdr->iv));
254 memcpy(txhdr->iv, ((u8 *)wlhdr) + wlhdr_len, iv_len);
255 }
256 }
257 b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
258 (&txhdr->plcp), plcp_fragment_len,
259 rate);
260 b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
261 (&txhdr->plcp_fb), plcp_fragment_len,
262 rate_fb);
263
264 /* PHY TX Control word */
265 if (rate_ofdm)
266 phy_ctl |= B43legacy_TX4_PHY_OFDM;
267 if (dev->short_preamble)
268 phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL;
269 switch (txctl->antenna_sel_tx) {
270 case 0:
271 phy_ctl |= B43legacy_TX4_PHY_ANTLAST;
272 break;
273 case 1:
274 phy_ctl |= B43legacy_TX4_PHY_ANT0;
275 break;
276 case 2:
277 phy_ctl |= B43legacy_TX4_PHY_ANT1;
278 break;
279 default:
280 B43legacy_BUG_ON(1);
281 }
282
283 /* MAC control */
284 if (!(txctl->flags & IEEE80211_TXCTL_NO_ACK))
285 mac_ctl |= B43legacy_TX4_MAC_ACK;
286 if (!(((fctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
287 ((fctl & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)))
288 mac_ctl |= B43legacy_TX4_MAC_HWSEQ;
289 if (txctl->flags & IEEE80211_TXCTL_FIRST_FRAGMENT)
290 mac_ctl |= B43legacy_TX4_MAC_STMSDU;
291 if (rate_fb_ofdm)
292 mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM;
293
294 /* Generate the RTS or CTS-to-self frame */
295 if ((txctl->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
296 (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
297 unsigned int len;
298 struct ieee80211_hdr *hdr;
299 int rts_rate;
300 int rts_rate_fb;
301 int rts_rate_ofdm;
302 int rts_rate_fb_ofdm;
303
304 rts_rate = txctl->rts_cts_rate;
305 rts_rate_ofdm = b43legacy_is_ofdm_rate(rts_rate);
306 rts_rate_fb = b43legacy_calc_fallback_rate(rts_rate);
307 rts_rate_fb_ofdm = b43legacy_is_ofdm_rate(rts_rate_fb);
308 if (rts_rate_fb_ofdm)
309 mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM;
310
311 if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
312 ieee80211_ctstoself_get(dev->wl->hw,
313 dev->wl->if_id,
314 fragment_data,
315 fragment_len, txctl,
316 (struct ieee80211_cts *)
317 (txhdr->rts_frame));
318 mac_ctl |= B43legacy_TX4_MAC_SENDCTS;
319 len = sizeof(struct ieee80211_cts);
320 } else {
321 ieee80211_rts_get(dev->wl->hw,
322 dev->wl->if_id,
323 fragment_data, fragment_len, txctl,
324 (struct ieee80211_rts *)
325 (txhdr->rts_frame));
326 mac_ctl |= B43legacy_TX4_MAC_SENDRTS;
327 len = sizeof(struct ieee80211_rts);
328 }
329 len += FCS_LEN;
330 b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
331 (&txhdr->rts_plcp),
332 len, rts_rate);
333 b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
334 (&txhdr->rts_plcp_fb),
335 len, rts_rate_fb);
336 hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
337 txhdr->rts_dur_fb = hdr->duration_id;
338 mac_ctl |= B43legacy_TX4_MAC_LONGFRAME;
339 }
340
341 /* Magic cookie */
342 txhdr->cookie = cpu_to_le16(cookie);
343
344 /* Apply the bitfields */
345 txhdr->mac_ctl = cpu_to_le32(mac_ctl);
346 txhdr->phy_ctl = cpu_to_le16(phy_ctl);
347}
348
349void b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
350 u8 *txhdr,
351 const unsigned char *fragment_data,
352 unsigned int fragment_len,
353 const struct ieee80211_tx_control *txctl,
354 u16 cookie)
355{
356 generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
357 fragment_data, fragment_len,
358 txctl, cookie);
359}
360
361static s8 b43legacy_rssi_postprocess(struct b43legacy_wldev *dev,
362 u8 in_rssi, int ofdm,
363 int adjust_2053, int adjust_2050)
364{
365 struct b43legacy_phy *phy = &dev->phy;
366 s32 tmp;
367
368 switch (phy->radio_ver) {
369 case 0x2050:
370 if (ofdm) {
371 tmp = in_rssi;
372 if (tmp > 127)
373 tmp -= 256;
374 tmp *= 73;
375 tmp /= 64;
376 if (adjust_2050)
377 tmp += 25;
378 else
379 tmp -= 3;
380 } else {
381 if (dev->dev->bus->sprom.r1.boardflags_lo
382 & B43legacy_BFL_RSSI) {
383 if (in_rssi > 63)
384 in_rssi = 63;
385 tmp = phy->nrssi_lt[in_rssi];
386 tmp = 31 - tmp;
387 tmp *= -131;
388 tmp /= 128;
389 tmp -= 57;
390 } else {
391 tmp = in_rssi;
392 tmp = 31 - tmp;
393 tmp *= -149;
394 tmp /= 128;
395 tmp -= 68;
396 }
397 if (phy->type == B43legacy_PHYTYPE_G &&
398 adjust_2050)
399 tmp += 25;
400 }
401 break;
402 case 0x2060:
403 if (in_rssi > 127)
404 tmp = in_rssi - 256;
405 else
406 tmp = in_rssi;
407 break;
408 default:
409 tmp = in_rssi;
410 tmp -= 11;
411 tmp *= 103;
412 tmp /= 64;
413 if (adjust_2053)
414 tmp -= 109;
415 else
416 tmp -= 83;
417 }
418
419 return (s8)tmp;
420}
421
422void b43legacy_rx(struct b43legacy_wldev *dev,
423 struct sk_buff *skb,
424 const void *_rxhdr)
425{
426 struct ieee80211_rx_status status;
427 struct b43legacy_plcp_hdr6 *plcp;
428 struct ieee80211_hdr *wlhdr;
429 const struct b43legacy_rxhdr_fw3 *rxhdr = _rxhdr;
430 u16 fctl;
431 u16 phystat0;
432 u16 phystat3;
433 u16 chanstat;
434 u16 mactime;
435 u32 macstat;
436 u16 chanid;
437 u8 jssi;
438 int padding;
439
440 memset(&status, 0, sizeof(status));
441
442 /* Get metadata about the frame from the header. */
443 phystat0 = le16_to_cpu(rxhdr->phy_status0);
444 phystat3 = le16_to_cpu(rxhdr->phy_status3);
445 jssi = rxhdr->jssi;
446 macstat = le16_to_cpu(rxhdr->mac_status);
447 mactime = le16_to_cpu(rxhdr->mac_time);
448 chanstat = le16_to_cpu(rxhdr->channel);
449
450 if (macstat & B43legacy_RX_MAC_FCSERR)
451 dev->wl->ieee_stats.dot11FCSErrorCount++;
452
453 /* Skip PLCP and padding */
454 padding = (macstat & B43legacy_RX_MAC_PADDING) ? 2 : 0;
455 if (unlikely(skb->len < (sizeof(struct b43legacy_plcp_hdr6) +
456 padding))) {
457 b43legacydbg(dev->wl, "RX: Packet size underrun (1)\n");
458 goto drop;
459 }
460 plcp = (struct b43legacy_plcp_hdr6 *)(skb->data + padding);
461 skb_pull(skb, sizeof(struct b43legacy_plcp_hdr6) + padding);
462 /* The skb contains the Wireless Header + payload data now */
463 if (unlikely(skb->len < (2+2+6/*minimum hdr*/ + FCS_LEN))) {
464 b43legacydbg(dev->wl, "RX: Packet size underrun (2)\n");
465 goto drop;
466 }
467 wlhdr = (struct ieee80211_hdr *)(skb->data);
468 fctl = le16_to_cpu(wlhdr->frame_control);
469
470 if ((macstat & B43legacy_RX_MAC_DEC) &&
471 !(macstat & B43legacy_RX_MAC_DECERR)) {
472 unsigned int keyidx;
473 int wlhdr_len;
474 int iv_len;
475 int icv_len;
476
477 keyidx = ((macstat & B43legacy_RX_MAC_KEYIDX)
478 >> B43legacy_RX_MAC_KEYIDX_SHIFT);
479 /* We must adjust the key index here. We want the "physical"
480 * key index, but the ucode passed it slightly different.
481 */
482 keyidx = b43legacy_kidx_to_raw(dev, keyidx);
483 B43legacy_WARN_ON(keyidx >= dev->max_nr_keys);
484
485 if (dev->key[keyidx].algorithm != B43legacy_SEC_ALGO_NONE) {
486 /* Remove PROTECTED flag to mark it as decrypted. */
487 B43legacy_WARN_ON(!(fctl & IEEE80211_FCTL_PROTECTED));
488 fctl &= ~IEEE80211_FCTL_PROTECTED;
489 wlhdr->frame_control = cpu_to_le16(fctl);
490
491 wlhdr_len = ieee80211_get_hdrlen(fctl);
492 if (unlikely(skb->len < (wlhdr_len + 3))) {
493 b43legacydbg(dev->wl, "RX: Packet size"
494 " underrun3\n");
495 goto drop;
496 }
497 if (skb->data[wlhdr_len + 3] & (1 << 5)) {
498 /* The Ext-IV Bit is set in the "KeyID"
499 * octet of the IV.
500 */
501 iv_len = 8;
502 icv_len = 8;
503 } else {
504 iv_len = 4;
505 icv_len = 4;
506 }
507 if (unlikely(skb->len < (wlhdr_len + iv_len +
508 icv_len))) {
509 b43legacydbg(dev->wl, "RX: Packet size"
510 " underrun4\n");
511 goto drop;
512 }
513 /* Remove the IV */
514 memmove(skb->data + iv_len, skb->data, wlhdr_len);
515 skb_pull(skb, iv_len);
516 /* Remove the ICV */
517 skb_trim(skb, skb->len - icv_len);
518
519 status.flag |= RX_FLAG_DECRYPTED;
520 }
521 }
522
523 status.ssi = b43legacy_rssi_postprocess(dev, jssi,
524 (phystat0 & B43legacy_RX_PHYST0_OFDM),
525 (phystat0 & B43legacy_RX_PHYST0_GAINCTL),
526 (phystat3 & B43legacy_RX_PHYST3_TRSTATE));
527 status.noise = dev->stats.link_noise;
528 status.signal = (jssi * 100) / B43legacy_RX_MAX_SSI;
529 if (phystat0 & B43legacy_RX_PHYST0_OFDM)
530 status.rate = b43legacy_plcp_get_bitrate_ofdm(plcp);
531 else
532 status.rate = b43legacy_plcp_get_bitrate_cck(plcp);
533 status.antenna = !!(phystat0 & B43legacy_RX_PHYST0_ANT);
534 status.mactime = mactime;
535
536 chanid = (chanstat & B43legacy_RX_CHAN_ID) >>
537 B43legacy_RX_CHAN_ID_SHIFT;
538 switch (chanstat & B43legacy_RX_CHAN_PHYTYPE) {
539 case B43legacy_PHYTYPE_B:
540 status.phymode = MODE_IEEE80211B;
541 status.freq = chanid + 2400;
542 status.channel = b43legacy_freq_to_channel_bg(chanid + 2400);
543 break;
544 case B43legacy_PHYTYPE_G:
545 status.phymode = MODE_IEEE80211G;
546 status.freq = chanid + 2400;
547 status.channel = b43legacy_freq_to_channel_bg(chanid + 2400);
548 break;
549 default:
550 b43legacywarn(dev->wl, "Unexpected value for chanstat (0x%X)\n",
551 chanstat);
552 }
553
554 dev->stats.last_rx = jiffies;
555 ieee80211_rx_irqsafe(dev->wl->hw, skb, &status);
556
557 return;
558drop:
559 b43legacydbg(dev->wl, "RX: Packet dropped\n");
560 dev_kfree_skb_any(skb);
561}
562
563void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
564 const struct b43legacy_txstatus *status)
565{
566 b43legacy_debugfs_log_txstat(dev, status);
567
568 if (status->intermediate)
569 return;
570 if (status->for_ampdu)
571 return;
572 if (!status->acked)
573 dev->wl->ieee_stats.dot11ACKFailureCount++;
574 if (status->rts_count) {
575 if (status->rts_count == 0xF) /* FIXME */
576 dev->wl->ieee_stats.dot11RTSFailureCount++;
577 else
578 dev->wl->ieee_stats.dot11RTSSuccessCount++;
579 }
580
581 if (b43legacy_using_pio(dev))
582 b43legacy_pio_handle_txstatus(dev, status);
583 else
584 b43legacy_dma_handle_txstatus(dev, status);
585}
586
587/* Handle TX status report as received through DMA/PIO queues */
588void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
589 const struct b43legacy_hwtxstatus *hw)
590{
591 struct b43legacy_txstatus status;
592 u8 tmp;
593
594 status.cookie = le16_to_cpu(hw->cookie);
595 status.seq = le16_to_cpu(hw->seq);
596 status.phy_stat = hw->phy_stat;
597 tmp = hw->count;
598 status.frame_count = (tmp >> 4);
599 status.rts_count = (tmp & 0x0F);
600 tmp = hw->flags;
601 status.supp_reason = ((tmp & 0x1C) >> 2);
602 status.pm_indicated = !!(tmp & 0x80);
603 status.intermediate = !!(tmp & 0x40);
604 status.for_ampdu = !!(tmp & 0x20);
605 status.acked = !!(tmp & 0x02);
606
607 b43legacy_handle_txstatus(dev, &status);
608}
609
610/* Stop any TX operation on the device (suspend the hardware queues) */
611void b43legacy_tx_suspend(struct b43legacy_wldev *dev)
612{
613 if (b43legacy_using_pio(dev))
614 b43legacy_pio_freeze_txqueues(dev);
615 else
616 b43legacy_dma_tx_suspend(dev);
617}
618
619/* Resume any TX operation on the device (resume the hardware queues) */
620void b43legacy_tx_resume(struct b43legacy_wldev *dev)
621{
622 if (b43legacy_using_pio(dev))
623 b43legacy_pio_thaw_txqueues(dev);
624 else
625 b43legacy_dma_tx_resume(dev);
626}
627
628/* Initialize the QoS parameters */
629void b43legacy_qos_init(struct b43legacy_wldev *dev)
630{
631 /* FIXME: This function must probably be called from the mac80211
632 * config callback. */
633return;
634
635 b43legacy_hf_write(dev, b43legacy_hf_read(dev) | B43legacy_HF_EDCF);
636 /* FIXME kill magic */
637 b43legacy_write16(dev, 0x688,
638 b43legacy_read16(dev, 0x688) | 0x4);
639
640
641 /*TODO: We might need some stack support here to get the values. */
642}
Linux kernel - Deliverables
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