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path: root/drivers/net/wireless/b43/xmit.c
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Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
-rw-r--r--drivers/net/wireless/b43/xmit.c648
1 files changed, 648 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
new file mode 100644
index 000000000000..e6174b6f11fb
--- /dev/null
+++ b/drivers/net/wireless/b43/xmit.c
@@ -0,0 +1,648 @@
1/*
2
3 Broadcom B43 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
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; see the file COPYING. If not, write to
25 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
26 Boston, MA 02110-1301, USA.
27
28*/
29
30#include "xmit.h"
31#include "phy.h"
32#include "dma.h"
33#include "pio.h"
34
35/* Extract the bitrate out of a CCK PLCP header. */
36static u8 b43_plcp_get_bitrate_cck(struct b43_plcp_hdr6 *plcp)
37{
38 switch (plcp->raw[0]) {
39 case 0x0A:
40 return B43_CCK_RATE_1MB;
41 case 0x14:
42 return B43_CCK_RATE_2MB;
43 case 0x37:
44 return B43_CCK_RATE_5MB;
45 case 0x6E:
46 return B43_CCK_RATE_11MB;
47 }
48 B43_WARN_ON(1);
49 return 0;
50}
51
52/* Extract the bitrate out of an OFDM PLCP header. */
53static u8 b43_plcp_get_bitrate_ofdm(struct b43_plcp_hdr6 *plcp)
54{
55 switch (plcp->raw[0] & 0xF) {
56 case 0xB:
57 return B43_OFDM_RATE_6MB;
58 case 0xF:
59 return B43_OFDM_RATE_9MB;
60 case 0xA:
61 return B43_OFDM_RATE_12MB;
62 case 0xE:
63 return B43_OFDM_RATE_18MB;
64 case 0x9:
65 return B43_OFDM_RATE_24MB;
66 case 0xD:
67 return B43_OFDM_RATE_36MB;
68 case 0x8:
69 return B43_OFDM_RATE_48MB;
70 case 0xC:
71 return B43_OFDM_RATE_54MB;
72 }
73 B43_WARN_ON(1);
74 return 0;
75}
76
77u8 b43_plcp_get_ratecode_cck(const u8 bitrate)
78{
79 switch (bitrate) {
80 case B43_CCK_RATE_1MB:
81 return 0x0A;
82 case B43_CCK_RATE_2MB:
83 return 0x14;
84 case B43_CCK_RATE_5MB:
85 return 0x37;
86 case B43_CCK_RATE_11MB:
87 return 0x6E;
88 }
89 B43_WARN_ON(1);
90 return 0;
91}
92
93u8 b43_plcp_get_ratecode_ofdm(const u8 bitrate)
94{
95 switch (bitrate) {
96 case B43_OFDM_RATE_6MB:
97 return 0xB;
98 case B43_OFDM_RATE_9MB:
99 return 0xF;
100 case B43_OFDM_RATE_12MB:
101 return 0xA;
102 case B43_OFDM_RATE_18MB:
103 return 0xE;
104 case B43_OFDM_RATE_24MB:
105 return 0x9;
106 case B43_OFDM_RATE_36MB:
107 return 0xD;
108 case B43_OFDM_RATE_48MB:
109 return 0x8;
110 case B43_OFDM_RATE_54MB:
111 return 0xC;
112 }
113 B43_WARN_ON(1);
114 return 0;
115}
116
117void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp,
118 const u16 octets, const u8 bitrate)
119{
120 __le32 *data = &(plcp->data);
121 __u8 *raw = plcp->raw;
122
123 if (b43_is_ofdm_rate(bitrate)) {
124 *data = b43_plcp_get_ratecode_ofdm(bitrate);
125 B43_WARN_ON(octets & 0xF000);
126 *data |= (octets << 5);
127 *data = cpu_to_le32(*data);
128 } else {
129 u32 plen;
130
131 plen = octets * 16 / bitrate;
132 if ((octets * 16 % bitrate) > 0) {
133 plen++;
134 if ((bitrate == B43_CCK_RATE_11MB)
135 && ((octets * 8 % 11) < 4)) {
136 raw[1] = 0x84;
137 } else
138 raw[1] = 0x04;
139 } else
140 raw[1] = 0x04;
141 *data |= cpu_to_le32(plen << 16);
142 raw[0] = b43_plcp_get_ratecode_cck(bitrate);
143 }
144}
145
146static u8 b43_calc_fallback_rate(u8 bitrate)
147{
148 switch (bitrate) {
149 case B43_CCK_RATE_1MB:
150 return B43_CCK_RATE_1MB;
151 case B43_CCK_RATE_2MB:
152 return B43_CCK_RATE_1MB;
153 case B43_CCK_RATE_5MB:
154 return B43_CCK_RATE_2MB;
155 case B43_CCK_RATE_11MB:
156 return B43_CCK_RATE_5MB;
157 case B43_OFDM_RATE_6MB:
158 return B43_CCK_RATE_5MB;
159 case B43_OFDM_RATE_9MB:
160 return B43_OFDM_RATE_6MB;
161 case B43_OFDM_RATE_12MB:
162 return B43_OFDM_RATE_9MB;
163 case B43_OFDM_RATE_18MB:
164 return B43_OFDM_RATE_12MB;
165 case B43_OFDM_RATE_24MB:
166 return B43_OFDM_RATE_18MB;
167 case B43_OFDM_RATE_36MB:
168 return B43_OFDM_RATE_24MB;
169 case B43_OFDM_RATE_48MB:
170 return B43_OFDM_RATE_36MB;
171 case B43_OFDM_RATE_54MB:
172 return B43_OFDM_RATE_48MB;
173 }
174 B43_WARN_ON(1);
175 return 0;
176}
177
178static void generate_txhdr_fw4(struct b43_wldev *dev,
179 struct b43_txhdr_fw4 *txhdr,
180 const unsigned char *fragment_data,
181 unsigned int fragment_len,
182 const struct ieee80211_tx_control *txctl,
183 u16 cookie)
184{
185 const struct b43_phy *phy = &dev->phy;
186 const struct ieee80211_hdr *wlhdr =
187 (const struct ieee80211_hdr *)fragment_data;
188 int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT));
189 u16 fctl = le16_to_cpu(wlhdr->frame_control);
190 u8 rate, rate_fb;
191 int rate_ofdm, rate_fb_ofdm;
192 unsigned int plcp_fragment_len;
193 u32 mac_ctl = 0;
194 u16 phy_ctl = 0;
195 u8 extra_ft = 0;
196
197 memset(txhdr, 0, sizeof(*txhdr));
198
199 rate = txctl->tx_rate;
200 rate_ofdm = b43_is_ofdm_rate(rate);
201 rate_fb = (txctl->alt_retry_rate == -1) ? rate : txctl->alt_retry_rate;
202 rate_fb_ofdm = b43_is_ofdm_rate(rate_fb);
203
204 if (rate_ofdm)
205 txhdr->phy_rate = b43_plcp_get_ratecode_ofdm(rate);
206 else
207 txhdr->phy_rate = b43_plcp_get_ratecode_cck(rate);
208 txhdr->mac_frame_ctl = wlhdr->frame_control;
209 memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
210
211 /* Calculate duration for fallback rate */
212 if ((rate_fb == rate) ||
213 (wlhdr->duration_id & cpu_to_le16(0x8000)) ||
214 (wlhdr->duration_id == cpu_to_le16(0))) {
215 /* If the fallback rate equals the normal rate or the
216 * dur_id field contains an AID, CFP magic or 0,
217 * use the original dur_id field. */
218 txhdr->dur_fb = wlhdr->duration_id;
219 } else {
220 int fbrate_base100kbps = B43_RATE_TO_BASE100KBPS(rate_fb);
221 txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
222 dev->wl->if_id,
223 fragment_len,
224 fbrate_base100kbps);
225 }
226
227 plcp_fragment_len = fragment_len + FCS_LEN;
228 if (use_encryption) {
229 u8 key_idx = (u16) (txctl->key_idx);
230 struct b43_key *key;
231 int wlhdr_len;
232 size_t iv_len;
233
234 B43_WARN_ON(key_idx >= dev->max_nr_keys);
235 key = &(dev->key[key_idx]);
236 B43_WARN_ON(!key->keyconf);
237
238 /* Hardware appends ICV. */
239 plcp_fragment_len += txctl->icv_len;
240
241 key_idx = b43_kidx_to_fw(dev, key_idx);
242 mac_ctl |= (key_idx << B43_TX4_MAC_KEYIDX_SHIFT) &
243 B43_TX4_MAC_KEYIDX;
244 mac_ctl |= (key->algorithm << B43_TX4_MAC_KEYALG_SHIFT) &
245 B43_TX4_MAC_KEYALG;
246 wlhdr_len = ieee80211_get_hdrlen(fctl);
247 iv_len = min((size_t) txctl->iv_len,
248 ARRAY_SIZE(txhdr->iv));
249 memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len);
250 }
251 b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp),
252 plcp_fragment_len, rate);
253 b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp_fb),
254 plcp_fragment_len, rate_fb);
255
256 /* Extra Frame Types */
257 if (rate_fb_ofdm)
258 extra_ft |= B43_TX4_EFT_FBOFDM;
259
260 /* Set channel radio code. Note that the micrcode ORs 0x100 to
261 * this value before comparing it to the value in SHM, if this
262 * is a 5Ghz packet.
263 */
264 txhdr->chan_radio_code = phy->channel;
265
266 /* PHY TX Control word */
267 if (rate_ofdm)
268 phy_ctl |= B43_TX4_PHY_OFDM;
269 if (dev->short_preamble)
270 phy_ctl |= B43_TX4_PHY_SHORTPRMBL;
271 switch (txctl->antenna_sel_tx) {
272 case 0:
273 phy_ctl |= B43_TX4_PHY_ANTLAST;
274 break;
275 case 1:
276 phy_ctl |= B43_TX4_PHY_ANT0;
277 break;
278 case 2:
279 phy_ctl |= B43_TX4_PHY_ANT1;
280 break;
281 default:
282 B43_WARN_ON(1);
283 }
284
285 /* MAC control */
286 if (!(txctl->flags & IEEE80211_TXCTL_NO_ACK))
287 mac_ctl |= B43_TX4_MAC_ACK;
288 if (!(((fctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
289 ((fctl & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)))
290 mac_ctl |= B43_TX4_MAC_HWSEQ;
291 if (txctl->flags & IEEE80211_TXCTL_FIRST_FRAGMENT)
292 mac_ctl |= B43_TX4_MAC_STMSDU;
293 if (phy->type == B43_PHYTYPE_A)
294 mac_ctl |= B43_TX4_MAC_5GHZ;
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, rts_rate_fb;
302 int rts_rate_ofdm, rts_rate_fb_ofdm;
303
304 rts_rate = txctl->rts_cts_rate;
305 rts_rate_ofdm = b43_is_ofdm_rate(rts_rate);
306 rts_rate_fb = b43_calc_fallback_rate(rts_rate);
307 rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb);
308
309 if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
310 ieee80211_ctstoself_get(dev->wl->hw, dev->wl->if_id,
311 fragment_data, fragment_len,
312 txctl,
313 (struct ieee80211_cts *)(txhdr->
314 rts_frame));
315 mac_ctl |= B43_TX4_MAC_SENDCTS;
316 len = sizeof(struct ieee80211_cts);
317 } else {
318 ieee80211_rts_get(dev->wl->hw, dev->wl->if_id,
319 fragment_data, fragment_len, txctl,
320 (struct ieee80211_rts *)(txhdr->
321 rts_frame));
322 mac_ctl |= B43_TX4_MAC_SENDRTS;
323 len = sizeof(struct ieee80211_rts);
324 }
325 len += FCS_LEN;
326 b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->
327 rts_plcp), len,
328 rts_rate);
329 b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->
330 rts_plcp_fb),
331 len, rts_rate_fb);
332 hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
333 txhdr->rts_dur_fb = hdr->duration_id;
334 if (rts_rate_ofdm) {
335 extra_ft |= B43_TX4_EFT_RTSOFDM;
336 txhdr->phy_rate_rts =
337 b43_plcp_get_ratecode_ofdm(rts_rate);
338 } else
339 txhdr->phy_rate_rts =
340 b43_plcp_get_ratecode_cck(rts_rate);
341 if (rts_rate_fb_ofdm)
342 extra_ft |= B43_TX4_EFT_RTSFBOFDM;
343 mac_ctl |= B43_TX4_MAC_LONGFRAME;
344 }
345
346 /* Magic cookie */
347 txhdr->cookie = cpu_to_le16(cookie);
348
349 /* Apply the bitfields */
350 txhdr->mac_ctl = cpu_to_le32(mac_ctl);
351 txhdr->phy_ctl = cpu_to_le16(phy_ctl);
352 txhdr->extra_ft = extra_ft;
353}
354
355void b43_generate_txhdr(struct b43_wldev *dev,
356 u8 * txhdr,
357 const unsigned char *fragment_data,
358 unsigned int fragment_len,
359 const struct ieee80211_tx_control *txctl, u16 cookie)
360{
361 generate_txhdr_fw4(dev, (struct b43_txhdr_fw4 *)txhdr,
362 fragment_data, fragment_len, txctl, cookie);
363}
364
365static s8 b43_rssi_postprocess(struct b43_wldev *dev,
366 u8 in_rssi, int ofdm,
367 int adjust_2053, int adjust_2050)
368{
369 struct b43_phy *phy = &dev->phy;
370 s32 tmp;
371
372 switch (phy->radio_ver) {
373 case 0x2050:
374 if (ofdm) {
375 tmp = in_rssi;
376 if (tmp > 127)
377 tmp -= 256;
378 tmp *= 73;
379 tmp /= 64;
380 if (adjust_2050)
381 tmp += 25;
382 else
383 tmp -= 3;
384 } else {
385 if (dev->dev->bus->sprom.r1.
386 boardflags_lo & B43_BFL_RSSI) {
387 if (in_rssi > 63)
388 in_rssi = 63;
389 tmp = phy->nrssi_lt[in_rssi];
390 tmp = 31 - tmp;
391 tmp *= -131;
392 tmp /= 128;
393 tmp -= 57;
394 } else {
395 tmp = in_rssi;
396 tmp = 31 - tmp;
397 tmp *= -149;
398 tmp /= 128;
399 tmp -= 68;
400 }
401 if (phy->type == B43_PHYTYPE_G && adjust_2050)
402 tmp += 25;
403 }
404 break;
405 case 0x2060:
406 if (in_rssi > 127)
407 tmp = in_rssi - 256;
408 else
409 tmp = in_rssi;
410 break;
411 default:
412 tmp = in_rssi;
413 tmp -= 11;
414 tmp *= 103;
415 tmp /= 64;
416 if (adjust_2053)
417 tmp -= 109;
418 else
419 tmp -= 83;
420 }
421
422 return (s8) tmp;
423}
424
425//TODO
426#if 0
427static s8 b43_rssinoise_postprocess(struct b43_wldev *dev, u8 in_rssi)
428{
429 struct b43_phy *phy = &dev->phy;
430 s8 ret;
431
432 if (phy->type == B43_PHYTYPE_A) {
433 //TODO: Incomplete specs.
434 ret = 0;
435 } else
436 ret = b43_rssi_postprocess(dev, in_rssi, 0, 1, 1);
437
438 return ret;
439}
440#endif
441
442void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
443{
444 struct ieee80211_rx_status status;
445 struct b43_plcp_hdr6 *plcp;
446 struct ieee80211_hdr *wlhdr;
447 const struct b43_rxhdr_fw4 *rxhdr = _rxhdr;
448 u16 fctl;
449 u16 phystat0, phystat3, chanstat, mactime;
450 u32 macstat;
451 u16 chanid;
452 u8 jssi;
453 int padding;
454
455 memset(&status, 0, sizeof(status));
456
457 /* Get metadata about the frame from the header. */
458 phystat0 = le16_to_cpu(rxhdr->phy_status0);
459 phystat3 = le16_to_cpu(rxhdr->phy_status3);
460 jssi = rxhdr->jssi;
461 macstat = le32_to_cpu(rxhdr->mac_status);
462 mactime = le16_to_cpu(rxhdr->mac_time);
463 chanstat = le16_to_cpu(rxhdr->channel);
464
465 if (macstat & B43_RX_MAC_FCSERR)
466 dev->wl->ieee_stats.dot11FCSErrorCount++;
467 if (macstat & B43_RX_MAC_DECERR) {
468 /* Decryption with the given key failed.
469 * Drop the packet. We also won't be able to decrypt it with
470 * the key in software. */
471 goto drop;
472 }
473
474 /* Skip PLCP and padding */
475 padding = (macstat & B43_RX_MAC_PADDING) ? 2 : 0;
476 if (unlikely(skb->len < (sizeof(struct b43_plcp_hdr6) + padding))) {
477 b43dbg(dev->wl, "RX: Packet size underrun (1)\n");
478 goto drop;
479 }
480 plcp = (struct b43_plcp_hdr6 *)(skb->data + padding);
481 skb_pull(skb, sizeof(struct b43_plcp_hdr6) + padding);
482 /* The skb contains the Wireless Header + payload data now */
483 if (unlikely(skb->len < (2 + 2 + 6 /*minimum hdr */ + FCS_LEN))) {
484 b43dbg(dev->wl, "RX: Packet size underrun (2)\n");
485 goto drop;
486 }
487 wlhdr = (struct ieee80211_hdr *)(skb->data);
488 fctl = le16_to_cpu(wlhdr->frame_control);
489 skb_trim(skb, skb->len - FCS_LEN);
490
491 if (macstat & B43_RX_MAC_DEC) {
492 unsigned int keyidx;
493 int wlhdr_len;
494
495 keyidx = ((macstat & B43_RX_MAC_KEYIDX)
496 >> B43_RX_MAC_KEYIDX_SHIFT);
497 /* We must adjust the key index here. We want the "physical"
498 * key index, but the ucode passed it slightly different.
499 */
500 keyidx = b43_kidx_to_raw(dev, keyidx);
501 B43_WARN_ON(keyidx >= dev->max_nr_keys);
502
503 if (dev->key[keyidx].algorithm != B43_SEC_ALGO_NONE) {
504 wlhdr_len = ieee80211_get_hdrlen(fctl);
505 if (unlikely(skb->len < (wlhdr_len + 3))) {
506 b43dbg(dev->wl,
507 "RX: Packet size underrun (3)\n");
508 goto drop;
509 }
510 status.flag |= RX_FLAG_DECRYPTED;
511 }
512 }
513
514 status.ssi = b43_rssi_postprocess(dev, jssi,
515 (phystat0 & B43_RX_PHYST0_OFDM),
516 (phystat0 & B43_RX_PHYST0_GAINCTL),
517 (phystat3 & B43_RX_PHYST3_TRSTATE));
518 status.noise = dev->stats.link_noise;
519 /* the next line looks wrong, but is what mac80211 wants */
520 status.signal = (jssi * 100) / B43_RX_MAX_SSI;
521 if (phystat0 & B43_RX_PHYST0_OFDM)
522 status.rate = b43_plcp_get_bitrate_ofdm(plcp);
523 else
524 status.rate = b43_plcp_get_bitrate_cck(plcp);
525 status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
526 status.mactime = mactime;
527
528 chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT;
529 switch (chanstat & B43_RX_CHAN_PHYTYPE) {
530 case B43_PHYTYPE_A:
531 status.phymode = MODE_IEEE80211A;
532 status.freq = chanid;
533 status.channel = b43_freq_to_channel_a(chanid);
534 break;
535 case B43_PHYTYPE_B:
536 status.phymode = MODE_IEEE80211B;
537 status.freq = chanid + 2400;
538 status.channel = b43_freq_to_channel_bg(chanid + 2400);
539 break;
540 case B43_PHYTYPE_G:
541 status.phymode = MODE_IEEE80211G;
542 status.freq = chanid + 2400;
543 status.channel = b43_freq_to_channel_bg(chanid + 2400);
544 break;
545 default:
546 B43_WARN_ON(1);
547 }
548
549 dev->stats.last_rx = jiffies;
550 ieee80211_rx_irqsafe(dev->wl->hw, skb, &status);
551
552 return;
553drop:
554 b43dbg(dev->wl, "RX: Packet dropped\n");
555 dev_kfree_skb_any(skb);
556}
557
558void b43_handle_txstatus(struct b43_wldev *dev,
559 const struct b43_txstatus *status)
560{
561 b43_debugfs_log_txstat(dev, status);
562
563 if (status->intermediate)
564 return;
565 if (status->for_ampdu)
566 return;
567 if (!status->acked)
568 dev->wl->ieee_stats.dot11ACKFailureCount++;
569 if (status->rts_count) {
570 if (status->rts_count == 0xF) //FIXME
571 dev->wl->ieee_stats.dot11RTSFailureCount++;
572 else
573 dev->wl->ieee_stats.dot11RTSSuccessCount++;
574 }
575
576 if (b43_using_pio(dev))
577 b43_pio_handle_txstatus(dev, status);
578 else
579 b43_dma_handle_txstatus(dev, status);
580}
581
582/* Handle TX status report as received through DMA/PIO queues */
583void b43_handle_hwtxstatus(struct b43_wldev *dev,
584 const struct b43_hwtxstatus *hw)
585{
586 struct b43_txstatus status;
587 u8 tmp;
588
589 status.cookie = le16_to_cpu(hw->cookie);
590 status.seq = le16_to_cpu(hw->seq);
591 status.phy_stat = hw->phy_stat;
592 tmp = hw->count;
593 status.frame_count = (tmp >> 4);
594 status.rts_count = (tmp & 0x0F);
595 tmp = hw->flags;
596 status.supp_reason = ((tmp & 0x1C) >> 2);
597 status.pm_indicated = !!(tmp & 0x80);
598 status.intermediate = !!(tmp & 0x40);
599 status.for_ampdu = !!(tmp & 0x20);
600 status.acked = !!(tmp & 0x02);
601
602 b43_handle_txstatus(dev, &status);
603}
604
605/* Stop any TX operation on the device (suspend the hardware queues) */
606void b43_tx_suspend(struct b43_wldev *dev)
607{
608 if (b43_using_pio(dev))
609 b43_pio_freeze_txqueues(dev);
610 else
611 b43_dma_tx_suspend(dev);
612}
613
614/* Resume any TX operation on the device (resume the hardware queues) */
615void b43_tx_resume(struct b43_wldev *dev)
616{
617 if (b43_using_pio(dev))
618 b43_pio_thaw_txqueues(dev);
619 else
620 b43_dma_tx_resume(dev);
621}
622
623#if 0
624static void upload_qos_parms(struct b43_wldev *dev,
625 const u16 * parms, u16 offset)
626{
627 int i;
628
629 for (i = 0; i < B43_NR_QOSPARMS; i++) {
630 b43_shm_write16(dev, B43_SHM_SHARED,
631 offset + (i * 2), parms[i]);
632 }
633}
634#endif
635
636/* Initialize the QoS parameters */
637void b43_qos_init(struct b43_wldev *dev)
638{
639 /* FIXME: This function must probably be called from the mac80211
640 * config callback. */
641 return;
642
643 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
644 //FIXME kill magic
645 b43_write16(dev, 0x688, b43_read16(dev, 0x688) | 0x4);
646
647 /*TODO: We might need some stack support here to get the values. */
648}
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-28 01:29:51 -0500