?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
b43/b43legacy: fix my copyright notices
[linux/fpc-iii.git] / drivers / net / wireless / b43legacy / xmit.c
blob23496f45a4d7326f2854d8312b22779fe733f1e9
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 <stefano.brivio@polimi.it>
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. */
40 static 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. */
57 static 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
81 u8 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
97 u8 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
121 void 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
152 static 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
184 static 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 if (txctl->flags & IEEE80211_TXCTL_LONG_RETRY_LIMIT)
294 mac_ctl |= B43legacy_TX4_MAC_LONGFRAME;
295
296 /* Generate the RTS or CTS-to-self frame */
297 if ((txctl->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
298 (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
299 unsigned int len;
300 struct ieee80211_hdr *hdr;
301 int rts_rate;
302 int rts_rate_fb;
303 int rts_rate_ofdm;
304 int rts_rate_fb_ofdm;
305
306 rts_rate = txctl->rts_cts_rate;
307 rts_rate_ofdm = b43legacy_is_ofdm_rate(rts_rate);
308 rts_rate_fb = b43legacy_calc_fallback_rate(rts_rate);
309 rts_rate_fb_ofdm = b43legacy_is_ofdm_rate(rts_rate_fb);
310 if (rts_rate_fb_ofdm)
311 mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM;
312
313 if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
314 ieee80211_ctstoself_get(dev->wl->hw,
315 dev->wl->if_id,
316 fragment_data,
317 fragment_len, txctl,
318 (struct ieee80211_cts *)
319 (txhdr->rts_frame));
320 mac_ctl |= B43legacy_TX4_MAC_SENDCTS;
321 len = sizeof(struct ieee80211_cts);
322 } else {
323 ieee80211_rts_get(dev->wl->hw,
324 dev->wl->if_id,
325 fragment_data, fragment_len, txctl,
326 (struct ieee80211_rts *)
327 (txhdr->rts_frame));
328 mac_ctl |= B43legacy_TX4_MAC_SENDRTS;
329 len = sizeof(struct ieee80211_rts);
330 }
331 len += FCS_LEN;
332 b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
333 (&txhdr->rts_plcp),
334 len, rts_rate);
335 b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
336 (&txhdr->rts_plcp_fb),
337 len, rts_rate_fb);
338 hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
339 txhdr->rts_dur_fb = hdr->duration_id;
340 }
341
342 /* Magic cookie */
343 txhdr->cookie = cpu_to_le16(cookie);
344
345 /* Apply the bitfields */
346 txhdr->mac_ctl = cpu_to_le32(mac_ctl);
347 txhdr->phy_ctl = cpu_to_le16(phy_ctl);
348 }
349
350 void b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
351 u8 *txhdr,
352 const unsigned char *fragment_data,
353 unsigned int fragment_len,
354 const struct ieee80211_tx_control *txctl,
355 u16 cookie)
356 {
357 generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
358 fragment_data, fragment_len,
359 txctl, cookie);
360 }
361
362 static s8 b43legacy_rssi_postprocess(struct b43legacy_wldev *dev,
363 u8 in_rssi, int ofdm,
364 int adjust_2053, int adjust_2050)
365 {
366 struct b43legacy_phy *phy = &dev->phy;
367 s32 tmp;
368
369 switch (phy->radio_ver) {
370 case 0x2050:
371 if (ofdm) {
372 tmp = in_rssi;
373 if (tmp > 127)
374 tmp -= 256;
375 tmp *= 73;
376 tmp /= 64;
377 if (adjust_2050)
378 tmp += 25;
379 else
380 tmp -= 3;
381 } else {
382 if (dev->dev->bus->sprom.r1.boardflags_lo
383 & B43legacy_BFL_RSSI) {
384 if (in_rssi > 63)
385 in_rssi = 63;
386 tmp = phy->nrssi_lt[in_rssi];
387 tmp = 31 - tmp;
388 tmp *= -131;
389 tmp /= 128;
390 tmp -= 57;
391 } else {
392 tmp = in_rssi;
393 tmp = 31 - tmp;
394 tmp *= -149;
395 tmp /= 128;
396 tmp -= 68;
397 }
398 if (phy->type == B43legacy_PHYTYPE_G &&
399 adjust_2050)
400 tmp += 25;
401 }
402 break;
403 case 0x2060:
404 if (in_rssi > 127)
405 tmp = in_rssi - 256;
406 else
407 tmp = in_rssi;
408 break;
409 default:
410 tmp = in_rssi;
411 tmp -= 11;
412 tmp *= 103;
413 tmp /= 64;
414 if (adjust_2053)
415 tmp -= 109;
416 else
417 tmp -= 83;
418 }
419
420 return (s8)tmp;
421 }
422
423 void b43legacy_rx(struct b43legacy_wldev *dev,
424 struct sk_buff *skb,
425 const void *_rxhdr)
426 {
427 struct ieee80211_rx_status status;
428 struct b43legacy_plcp_hdr6 *plcp;
429 struct ieee80211_hdr *wlhdr;
430 const struct b43legacy_rxhdr_fw3 *rxhdr = _rxhdr;
431 u16 fctl;
432 u16 phystat0;
433 u16 phystat3;
434 u16 chanstat;
435 u16 mactime;
436 u32 macstat;
437 u16 chanid;
438 u8 jssi;
439 int padding;
440
441 memset(&status, 0, sizeof(status));
442
443 /* Get metadata about the frame from the header. */
444 phystat0 = le16_to_cpu(rxhdr->phy_status0);
445 phystat3 = le16_to_cpu(rxhdr->phy_status3);
446 jssi = rxhdr->jssi;
447 macstat = le16_to_cpu(rxhdr->mac_status);
448 mactime = le16_to_cpu(rxhdr->mac_time);
449 chanstat = le16_to_cpu(rxhdr->channel);
450
451 if (macstat & B43legacy_RX_MAC_FCSERR)
452 dev->wl->ieee_stats.dot11FCSErrorCount++;
453
454 /* Skip PLCP and padding */
455 padding = (macstat & B43legacy_RX_MAC_PADDING) ? 2 : 0;
456 if (unlikely(skb->len < (sizeof(struct b43legacy_plcp_hdr6) +
457 padding))) {
458 b43legacydbg(dev->wl, "RX: Packet size underrun (1)\n");
459 goto drop;
460 }
461 plcp = (struct b43legacy_plcp_hdr6 *)(skb->data + padding);
462 skb_pull(skb, sizeof(struct b43legacy_plcp_hdr6) + padding);
463 /* The skb contains the Wireless Header + payload data now */
464 if (unlikely(skb->len < (2+2+6/*minimum hdr*/ + FCS_LEN))) {
465 b43legacydbg(dev->wl, "RX: Packet size underrun (2)\n");
466 goto drop;
467 }
468 wlhdr = (struct ieee80211_hdr *)(skb->data);
469 fctl = le16_to_cpu(wlhdr->frame_control);
470
471 if ((macstat & B43legacy_RX_MAC_DEC) &&
472 !(macstat & B43legacy_RX_MAC_DECERR)) {
473 unsigned int keyidx;
474 int wlhdr_len;
475 int iv_len;
476 int icv_len;
477
478 keyidx = ((macstat & B43legacy_RX_MAC_KEYIDX)
479 >> B43legacy_RX_MAC_KEYIDX_SHIFT);
480 /* We must adjust the key index here. We want the "physical"
481 * key index, but the ucode passed it slightly different.
482 */
483 keyidx = b43legacy_kidx_to_raw(dev, keyidx);
484 B43legacy_WARN_ON(keyidx >= dev->max_nr_keys);
485
486 if (dev->key[keyidx].algorithm != B43legacy_SEC_ALGO_NONE) {
487 /* Remove PROTECTED flag to mark it as decrypted. */
488 B43legacy_WARN_ON(!(fctl & IEEE80211_FCTL_PROTECTED));
489 fctl &= ~IEEE80211_FCTL_PROTECTED;
490 wlhdr->frame_control = cpu_to_le16(fctl);
491
492 wlhdr_len = ieee80211_get_hdrlen(fctl);
493 if (unlikely(skb->len < (wlhdr_len + 3))) {
494 b43legacydbg(dev->wl, "RX: Packet size"
495 " underrun3\n");
496 goto drop;
497 }
498 if (skb->data[wlhdr_len + 3] & (1 << 5)) {
499 /* The Ext-IV Bit is set in the "KeyID"
500 * octet of the IV.
501 */
502 iv_len = 8;
503 icv_len = 8;
504 } else {
505 iv_len = 4;
506 icv_len = 4;
507 }
508 if (unlikely(skb->len < (wlhdr_len + iv_len +
509 icv_len))) {
510 b43legacydbg(dev->wl, "RX: Packet size"
511 " underrun4\n");
512 goto drop;
513 }
514 /* Remove the IV */
515 memmove(skb->data + iv_len, skb->data, wlhdr_len);
516 skb_pull(skb, iv_len);
517 /* Remove the ICV */
518 skb_trim(skb, skb->len - icv_len);
519
520 status.flag |= RX_FLAG_DECRYPTED;
521 }
522 }
523
524 status.ssi = b43legacy_rssi_postprocess(dev, jssi,
525 (phystat0 & B43legacy_RX_PHYST0_OFDM),
526 (phystat0 & B43legacy_RX_PHYST0_GAINCTL),
527 (phystat3 & B43legacy_RX_PHYST3_TRSTATE));
528 status.noise = dev->stats.link_noise;
529 status.signal = (jssi * 100) / B43legacy_RX_MAX_SSI;
530 if (phystat0 & B43legacy_RX_PHYST0_OFDM)
531 status.rate = b43legacy_plcp_get_bitrate_ofdm(plcp);
532 else
533 status.rate = b43legacy_plcp_get_bitrate_cck(plcp);
534 status.antenna = !!(phystat0 & B43legacy_RX_PHYST0_ANT);
535 status.mactime = mactime;
536 status.flag |= RX_FLAG_TSFT;
537
538 chanid = (chanstat & B43legacy_RX_CHAN_ID) >>
539 B43legacy_RX_CHAN_ID_SHIFT;
540 switch (chanstat & B43legacy_RX_CHAN_PHYTYPE) {
541 case B43legacy_PHYTYPE_B:
542 status.phymode = MODE_IEEE80211B;
543 status.freq = chanid + 2400;
544 status.channel = b43legacy_freq_to_channel_bg(chanid + 2400);
545 break;
546 case B43legacy_PHYTYPE_G:
547 status.phymode = MODE_IEEE80211G;
548 status.freq = chanid + 2400;
549 status.channel = b43legacy_freq_to_channel_bg(chanid + 2400);
550 break;
551 default:
552 b43legacywarn(dev->wl, "Unexpected value for chanstat (0x%X)\n",
553 chanstat);
554 }
555
556 dev->stats.last_rx = jiffies;
557 ieee80211_rx_irqsafe(dev->wl->hw, skb, &status);
558
559 return;
560 drop:
561 b43legacydbg(dev->wl, "RX: Packet dropped\n");
562 dev_kfree_skb_any(skb);
563 }
564
565 void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
566 const struct b43legacy_txstatus *status)
567 {
568 b43legacy_debugfs_log_txstat(dev, status);
569
570 if (status->intermediate)
571 return;
572 if (status->for_ampdu)
573 return;
574 if (!status->acked)
575 dev->wl->ieee_stats.dot11ACKFailureCount++;
576 if (status->rts_count) {
577 if (status->rts_count == 0xF) /* FIXME */
578 dev->wl->ieee_stats.dot11RTSFailureCount++;
579 else
580 dev->wl->ieee_stats.dot11RTSSuccessCount++;
581 }
582
583 if (b43legacy_using_pio(dev))
584 b43legacy_pio_handle_txstatus(dev, status);
585 else
586 b43legacy_dma_handle_txstatus(dev, status);
587 }
588
589 /* Handle TX status report as received through DMA/PIO queues */
590 void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
591 const struct b43legacy_hwtxstatus *hw)
592 {
593 struct b43legacy_txstatus status;
594 u8 tmp;
595
596 status.cookie = le16_to_cpu(hw->cookie);
597 status.seq = le16_to_cpu(hw->seq);
598 status.phy_stat = hw->phy_stat;
599 tmp = hw->count;
600 status.frame_count = (tmp >> 4);
601 status.rts_count = (tmp & 0x0F);
602 tmp = hw->flags;
603 status.supp_reason = ((tmp & 0x1C) >> 2);
604 status.pm_indicated = !!(tmp & 0x80);
605 status.intermediate = !!(tmp & 0x40);
606 status.for_ampdu = !!(tmp & 0x20);
607 status.acked = !!(tmp & 0x02);
608
609 b43legacy_handle_txstatus(dev, &status);
610 }
611
612 /* Stop any TX operation on the device (suspend the hardware queues) */
613 void b43legacy_tx_suspend(struct b43legacy_wldev *dev)
614 {
615 if (b43legacy_using_pio(dev))
616 b43legacy_pio_freeze_txqueues(dev);
617 else
618 b43legacy_dma_tx_suspend(dev);
619 }
620
621 /* Resume any TX operation on the device (resume the hardware queues) */
622 void b43legacy_tx_resume(struct b43legacy_wldev *dev)
623 {
624 if (b43legacy_using_pio(dev))
625 b43legacy_pio_thaw_txqueues(dev);
626 else
627 b43legacy_dma_tx_resume(dev);
628 }
629
630 /* Initialize the QoS parameters */
631 void b43legacy_qos_init(struct b43legacy_wldev *dev)
632 {
633 /* FIXME: This function must probably be called from the mac80211
634 * config callback. */
635 return;
636
637 b43legacy_hf_write(dev, b43legacy_hf_read(dev) | B43legacy_HF_EDCF);
638 /* FIXME kill magic */
639 b43legacy_write16(dev, 0x688,
640 b43legacy_read16(dev, 0x688) | 0x4);
641
642
643 /*TODO: We might need some stack support here to get the values. */
644 }
Linux with added FPC-III support