1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22#undef __NO_VERSION__
23
24#include <linux/bits.h>
25#include <linux/etherdevice.h>
26#include <linux/file.h>
27#include <linux/kernel.h>
28#include "device.h"
29#include "card.h"
30#include "baseband.h"
31#include "mac.h"
32#include "power.h"
33#include "wcmd.h"
34#include "rxtx.h"
35#include "rf.h"
36#include "usbpipe.h"
37#include "channel.h"
38
39
40
41
42
43
44#define DRIVER_AUTHOR \
45 "VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>"
46MODULE_AUTHOR(DRIVER_AUTHOR);
47MODULE_LICENSE("GPL");
48MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
49
50#define RX_DESC_DEF0 64
51static int vnt_rx_buffers = RX_DESC_DEF0;
52module_param_named(rx_buffers, vnt_rx_buffers, int, 0644);
53MODULE_PARM_DESC(rx_buffers, "Number of receive usb rx buffers");
54
55#define TX_DESC_DEF0 64
56static int vnt_tx_buffers = TX_DESC_DEF0;
57module_param_named(tx_buffers, vnt_tx_buffers, int, 0644);
58MODULE_PARM_DESC(tx_buffers, "Number of receive usb tx buffers");
59
60#define RTS_THRESH_DEF 2347
61#define FRAG_THRESH_DEF 2346
62
63
64
65
66
67
68
69#define BBP_TYPE_DEF 2
70
71
72
73
74
75static const struct usb_device_id vt6656_table[] = {
76 {USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
77 {}
78};
79
80static void vnt_set_options(struct vnt_private *priv)
81{
82
83 if (vnt_tx_buffers < CB_MIN_TX_DESC || vnt_tx_buffers > CB_MAX_TX_DESC)
84 priv->num_tx_context = TX_DESC_DEF0;
85 else
86 priv->num_tx_context = vnt_tx_buffers;
87
88
89 if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)
90 priv->num_rcb = RX_DESC_DEF0;
91 else
92 priv->num_rcb = vnt_rx_buffers;
93
94 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
95 priv->bb_type = BBP_TYPE_DEF;
96 priv->packet_type = priv->bb_type;
97 priv->preamble_type = PREAMBLE_LONG;
98 priv->exist_sw_net_addr = false;
99}
100
101static int vnt_download_firmware(struct vnt_private *priv)
102{
103 struct device *dev = &priv->usb->dev;
104 const struct firmware *fw;
105 u16 length;
106 int ii;
107 int ret = 0;
108
109 dev_dbg(dev, "---->Download firmware\n");
110
111 ret = request_firmware(&fw, FIRMWARE_NAME, dev);
112 if (ret) {
113 dev_err(dev, "firmware file %s request failed (%d)\n",
114 FIRMWARE_NAME, ret);
115 goto end;
116 }
117
118 for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
119 length = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
120
121 ret = vnt_control_out(priv, 0, 0x1200 + ii, 0x0000, length,
122 fw->data + ii);
123 if (ret)
124 goto free_fw;
125
126 dev_dbg(dev, "Download firmware...%d %zu\n", ii, fw->size);
127 }
128
129free_fw:
130 release_firmware(fw);
131end:
132 return ret;
133}
134
135static int vnt_firmware_branch_to_sram(struct vnt_private *priv)
136{
137 dev_dbg(&priv->usb->dev, "---->Branch to Sram\n");
138
139 return vnt_control_out(priv, 1, 0x1200, 0x0000, 0, NULL);
140}
141
142static int vnt_check_firmware_version(struct vnt_private *priv)
143{
144 int ret = 0;
145
146 ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0,
147 MESSAGE_REQUEST_VERSION, 2,
148 (u8 *)&priv->firmware_version);
149 if (ret) {
150 dev_dbg(&priv->usb->dev,
151 "Could not get firmware version: %d.\n", ret);
152 goto end;
153 }
154
155 dev_dbg(&priv->usb->dev, "Firmware Version [%04x]\n",
156 priv->firmware_version);
157
158 if (priv->firmware_version == 0xFFFF) {
159 dev_dbg(&priv->usb->dev, "In Loader.\n");
160 ret = -EINVAL;
161 goto end;
162 }
163
164 if (priv->firmware_version < FIRMWARE_VERSION) {
165
166 ret = vnt_firmware_branch_to_sram(priv);
167 if (ret) {
168 dev_dbg(&priv->usb->dev,
169 "Could not branch to SRAM: %d.\n", ret);
170 } else {
171 ret = -EINVAL;
172 }
173 }
174
175end:
176 return ret;
177}
178
179
180
181
182static int vnt_init_registers(struct vnt_private *priv)
183{
184 int ret;
185 struct vnt_cmd_card_init *init_cmd = &priv->init_command;
186 struct vnt_rsp_card_init *init_rsp = &priv->init_response;
187 u8 antenna;
188 int ii;
189 u8 tmp;
190 u8 calib_tx_iq = 0, calib_tx_dc = 0, calib_rx_iq = 0;
191
192 dev_dbg(&priv->usb->dev, "---->INIbInitAdapter. [%d][%d]\n",
193 DEVICE_INIT_COLD, priv->packet_type);
194
195 ret = vnt_check_firmware_version(priv);
196 if (ret) {
197 ret = vnt_download_firmware(priv);
198 if (ret) {
199 dev_dbg(&priv->usb->dev,
200 "Could not download firmware: %d.\n", ret);
201 goto end;
202 }
203
204 ret = vnt_firmware_branch_to_sram(priv);
205 if (ret) {
206 dev_dbg(&priv->usb->dev,
207 "Could not branch to SRAM: %d.\n", ret);
208 goto end;
209 }
210 }
211
212 ret = vnt_vt3184_init(priv);
213 if (ret) {
214 dev_dbg(&priv->usb->dev, "vnt_vt3184_init fail\n");
215 goto end;
216 }
217
218 init_cmd->init_class = DEVICE_INIT_COLD;
219 init_cmd->exist_sw_net_addr = priv->exist_sw_net_addr;
220 for (ii = 0; ii < ARRAY_SIZE(init_cmd->sw_net_addr); ii++)
221 init_cmd->sw_net_addr[ii] = priv->current_net_addr[ii];
222 init_cmd->short_retry_limit = priv->hw->wiphy->retry_short;
223 init_cmd->long_retry_limit = priv->hw->wiphy->retry_long;
224
225
226 ret = vnt_control_out(priv, MESSAGE_TYPE_CARDINIT, 0, 0,
227 sizeof(struct vnt_cmd_card_init),
228 (u8 *)init_cmd);
229 if (ret) {
230 dev_dbg(&priv->usb->dev, "Issue Card init fail\n");
231 goto end;
232 }
233
234 ret = vnt_control_in(priv, MESSAGE_TYPE_INIT_RSP, 0, 0,
235 sizeof(struct vnt_rsp_card_init),
236 (u8 *)init_rsp);
237 if (ret) {
238 dev_dbg(&priv->usb->dev, "Cardinit request in status fail!\n");
239 goto end;
240 }
241
242
243 ret = vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_LOCALID,
244 MESSAGE_REQUEST_MACREG, 1, &priv->local_id);
245 if (ret)
246 goto end;
247
248
249
250 priv->top_ofdm_basic_rate = RATE_24M;
251 priv->top_cck_basic_rate = RATE_1M;
252
253
254 priv->power = 0xFF;
255
256 priv->cck_pwr = priv->eeprom[EEP_OFS_PWR_CCK];
257 priv->ofdm_pwr_g = priv->eeprom[EEP_OFS_PWR_OFDMG];
258
259 for (ii = 0; ii < ARRAY_SIZE(priv->cck_pwr_tbl); ii++) {
260 priv->cck_pwr_tbl[ii] =
261 priv->eeprom[ii + EEP_OFS_CCK_PWR_TBL];
262 if (priv->cck_pwr_tbl[ii] == 0)
263 priv->cck_pwr_tbl[ii] = priv->cck_pwr;
264
265 priv->ofdm_pwr_tbl[ii] =
266 priv->eeprom[ii + EEP_OFS_OFDM_PWR_TBL];
267 if (priv->ofdm_pwr_tbl[ii] == 0)
268 priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_g;
269 }
270
271
272
273
274
275 for (ii = 11; ii < ARRAY_SIZE(priv->cck_pwr_tbl); ii++) {
276 priv->cck_pwr_tbl[ii] = priv->cck_pwr_tbl[10];
277 priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_tbl[10];
278 }
279
280 priv->ofdm_pwr_a = 0x34;
281
282
283 for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
284 priv->ofdm_a_pwr_tbl[ii] =
285 priv->eeprom[ii + EEP_OFS_OFDMA_PWR_TBL];
286
287 if (priv->ofdm_a_pwr_tbl[ii] == 0)
288 priv->ofdm_a_pwr_tbl[ii] = priv->ofdm_pwr_a;
289 }
290
291 antenna = priv->eeprom[EEP_OFS_ANTENNA];
292
293 if (antenna & EEP_ANTINV)
294 priv->tx_rx_ant_inv = true;
295 else
296 priv->tx_rx_ant_inv = false;
297
298 antenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
299
300 if (antenna == 0)
301 antenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
302
303 if (antenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
304 priv->tx_antenna_mode = ANT_B;
305 priv->rx_antenna_sel = 1;
306
307 if (priv->tx_rx_ant_inv)
308 priv->rx_antenna_mode = ANT_A;
309 else
310 priv->rx_antenna_mode = ANT_B;
311 } else {
312 priv->rx_antenna_sel = 0;
313
314 if (antenna & EEP_ANTENNA_AUX) {
315 priv->tx_antenna_mode = ANT_A;
316
317 if (priv->tx_rx_ant_inv)
318 priv->rx_antenna_mode = ANT_B;
319 else
320 priv->rx_antenna_mode = ANT_A;
321 } else {
322 priv->tx_antenna_mode = ANT_B;
323
324 if (priv->tx_rx_ant_inv)
325 priv->rx_antenna_mode = ANT_A;
326 else
327 priv->rx_antenna_mode = ANT_B;
328 }
329 }
330
331
332 ret = vnt_set_antenna_mode(priv, priv->rx_antenna_mode);
333 if (ret)
334 goto end;
335
336
337 priv->bb_type = BB_TYPE_11G;
338
339
340 priv->rf_type = init_rsp->rf_type;
341
342
343 if (priv->rf_type == RF_VT3226D0) {
344 if ((priv->eeprom[EEP_OFS_MAJOR_VER] == 0x1) &&
345 (priv->eeprom[EEP_OFS_MINOR_VER] >= 0x4)) {
346 calib_tx_iq = priv->eeprom[EEP_OFS_CALIB_TX_IQ];
347 calib_tx_dc = priv->eeprom[EEP_OFS_CALIB_TX_DC];
348 calib_rx_iq = priv->eeprom[EEP_OFS_CALIB_RX_IQ];
349 if (calib_tx_iq || calib_tx_dc || calib_rx_iq) {
350
351
352
353 ret = vnt_control_out_u8(priv,
354 MESSAGE_REQUEST_BBREG,
355 0xff, 0x03);
356 if (ret)
357 goto end;
358
359
360 ret = vnt_control_out_u8(priv,
361 MESSAGE_REQUEST_BBREG,
362 0xfb, calib_tx_iq);
363 if (ret)
364 goto end;
365
366
367 ret = vnt_control_out_u8(priv,
368 MESSAGE_REQUEST_BBREG,
369 0xfC, calib_tx_dc);
370 if (ret)
371 goto end;
372
373
374 ret = vnt_control_out_u8(priv,
375 MESSAGE_REQUEST_BBREG,
376 0xfd, calib_rx_iq);
377 if (ret)
378 goto end;
379 } else {
380
381
382
383 ret = vnt_control_out_u8(priv,
384 MESSAGE_REQUEST_BBREG,
385 0xff, 0x0);
386 if (ret)
387 goto end;
388 }
389 }
390 }
391
392
393 memcpy(priv->permanent_net_addr, init_rsp->net_addr, 6);
394 ether_addr_copy(priv->current_net_addr, priv->permanent_net_addr);
395
396
397 dev_dbg(&priv->usb->dev, "Network address = %pM\n",
398 priv->current_net_addr);
399
400 priv->radio_ctl = priv->eeprom[EEP_OFS_RADIOCTL];
401
402 if ((priv->radio_ctl & EEP_RADIOCTL_ENABLE) != 0) {
403 ret = vnt_control_in(priv, MESSAGE_TYPE_READ,
404 MAC_REG_GPIOCTL1, MESSAGE_REQUEST_MACREG,
405 1, &tmp);
406 if (ret)
407 goto end;
408
409 if ((tmp & GPIO3_DATA) == 0) {
410 ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1,
411 GPIO3_INTMD);
412 } else {
413 ret = vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1,
414 GPIO3_INTMD);
415 }
416
417 if (ret)
418 goto end;
419 }
420
421 ret = vnt_mac_set_led(priv, LEDSTS_TMLEN, 0x38);
422 if (ret)
423 goto end;
424
425 ret = vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
426 if (ret)
427 goto end;
428
429 ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, BIT(0));
430 if (ret)
431 goto end;
432
433 ret = vnt_radio_power_on(priv);
434 if (ret)
435 goto end;
436
437 dev_dbg(&priv->usb->dev, "<----INIbInitAdapter Exit\n");
438
439end:
440 return ret;
441}
442
443static void vnt_free_tx_bufs(struct vnt_private *priv)
444{
445 struct vnt_usb_send_context *tx_context;
446 int ii;
447
448 usb_kill_anchored_urbs(&priv->tx_submitted);
449
450 for (ii = 0; ii < priv->num_tx_context; ii++) {
451 tx_context = priv->tx_context[ii];
452 if (!tx_context)
453 continue;
454
455 kfree(tx_context);
456 }
457}
458
459static void vnt_free_rx_bufs(struct vnt_private *priv)
460{
461 struct vnt_rcb *rcb;
462 int ii;
463
464 for (ii = 0; ii < priv->num_rcb; ii++) {
465 rcb = priv->rcb[ii];
466 if (!rcb)
467 continue;
468
469
470 if (rcb->urb) {
471 usb_kill_urb(rcb->urb);
472 usb_free_urb(rcb->urb);
473 }
474
475
476 if (rcb->skb)
477 dev_kfree_skb(rcb->skb);
478
479 kfree(rcb);
480 }
481}
482
483static void vnt_free_int_bufs(struct vnt_private *priv)
484{
485 kfree(priv->int_buf.data_buf);
486}
487
488static int vnt_alloc_bufs(struct vnt_private *priv)
489{
490 int ret;
491 struct vnt_usb_send_context *tx_context;
492 struct vnt_rcb *rcb;
493 int ii;
494
495 init_usb_anchor(&priv->tx_submitted);
496
497 for (ii = 0; ii < priv->num_tx_context; ii++) {
498 tx_context = kmalloc(sizeof(*tx_context), GFP_KERNEL);
499 if (!tx_context) {
500 ret = -ENOMEM;
501 goto free_tx;
502 }
503
504 priv->tx_context[ii] = tx_context;
505 tx_context->priv = priv;
506 tx_context->pkt_no = ii;
507 tx_context->in_use = false;
508 }
509
510 for (ii = 0; ii < priv->num_rcb; ii++) {
511 priv->rcb[ii] = kzalloc(sizeof(*priv->rcb[ii]), GFP_KERNEL);
512 if (!priv->rcb[ii]) {
513 ret = -ENOMEM;
514 goto free_rx_tx;
515 }
516
517 rcb = priv->rcb[ii];
518
519 rcb->priv = priv;
520
521
522 rcb->urb = usb_alloc_urb(0, GFP_KERNEL);
523 if (!rcb->urb) {
524 ret = -ENOMEM;
525 goto free_rx_tx;
526 }
527
528 rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
529 if (!rcb->skb) {
530 ret = -ENOMEM;
531 goto free_rx_tx;
532 }
533
534 ret = vnt_submit_rx_urb(priv, rcb);
535 if (ret)
536 goto free_rx_tx;
537 }
538
539 priv->interrupt_urb = usb_alloc_urb(0, GFP_KERNEL);
540 if (!priv->interrupt_urb) {
541 ret = -ENOMEM;
542 goto free_rx_tx;
543 }
544
545 priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
546 if (!priv->int_buf.data_buf) {
547 ret = -ENOMEM;
548 goto free_rx_tx_urb;
549 }
550
551 return 0;
552
553free_rx_tx_urb:
554 usb_free_urb(priv->interrupt_urb);
555free_rx_tx:
556 vnt_free_rx_bufs(priv);
557free_tx:
558 vnt_free_tx_bufs(priv);
559 return ret;
560}
561
562static void vnt_tx_80211(struct ieee80211_hw *hw,
563 struct ieee80211_tx_control *control,
564 struct sk_buff *skb)
565{
566 struct vnt_private *priv = hw->priv;
567
568 if (vnt_tx_packet(priv, skb))
569 ieee80211_free_txskb(hw, skb);
570}
571
572static int vnt_start(struct ieee80211_hw *hw)
573{
574 int ret;
575 struct vnt_private *priv = hw->priv;
576
577 priv->rx_buf_sz = MAX_TOTAL_SIZE_WITH_ALL_HEADERS;
578
579 ret = vnt_alloc_bufs(priv);
580 if (ret) {
581 dev_dbg(&priv->usb->dev, "vnt_alloc_bufs fail...\n");
582 goto err;
583 }
584
585 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
586
587 ret = vnt_init_registers(priv);
588 if (ret) {
589 dev_dbg(&priv->usb->dev, " init register fail\n");
590 goto free_all;
591 }
592
593 ret = vnt_key_init_table(priv);
594 if (ret)
595 goto free_all;
596
597 priv->int_interval = 1;
598
599 ret = vnt_start_interrupt_urb(priv);
600 if (ret)
601 goto free_all;
602
603 ieee80211_wake_queues(hw);
604
605 return 0;
606
607free_all:
608 vnt_free_rx_bufs(priv);
609 vnt_free_tx_bufs(priv);
610 vnt_free_int_bufs(priv);
611
612 usb_kill_urb(priv->interrupt_urb);
613 usb_free_urb(priv->interrupt_urb);
614err:
615 return ret;
616}
617
618static void vnt_stop(struct ieee80211_hw *hw)
619{
620 struct vnt_private *priv = hw->priv;
621 int i;
622
623 if (!priv)
624 return;
625
626 for (i = 0; i < MAX_KEY_TABLE; i++)
627 vnt_mac_disable_keyentry(priv, i);
628
629
630 priv->key_entry_inuse = 0;
631
632 if (!test_bit(DEVICE_FLAGS_UNPLUG, &priv->flags))
633 vnt_mac_shutdown(priv);
634
635 ieee80211_stop_queues(hw);
636
637 set_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
638
639 cancel_delayed_work_sync(&priv->run_command_work);
640
641 priv->cmd_running = false;
642
643 vnt_free_tx_bufs(priv);
644 vnt_free_rx_bufs(priv);
645 vnt_free_int_bufs(priv);
646
647 usb_kill_urb(priv->interrupt_urb);
648 usb_free_urb(priv->interrupt_urb);
649}
650
651static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
652{
653 struct vnt_private *priv = hw->priv;
654
655 priv->vif = vif;
656
657 switch (vif->type) {
658 case NL80211_IFTYPE_STATION:
659 break;
660 case NL80211_IFTYPE_ADHOC:
661 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
662
663 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
664
665 break;
666 case NL80211_IFTYPE_AP:
667 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
668
669 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_AP);
670
671 break;
672 default:
673 return -EOPNOTSUPP;
674 }
675
676 priv->op_mode = vif->type;
677
678
679 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_INTER);
680
681 return 0;
682}
683
684static void vnt_remove_interface(struct ieee80211_hw *hw,
685 struct ieee80211_vif *vif)
686{
687 struct vnt_private *priv = hw->priv;
688
689 switch (vif->type) {
690 case NL80211_IFTYPE_STATION:
691 break;
692 case NL80211_IFTYPE_ADHOC:
693 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
694 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
695 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
696 break;
697 case NL80211_IFTYPE_AP:
698 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
699 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
700 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_AP);
701 break;
702 default:
703 break;
704 }
705
706 vnt_radio_power_off(priv);
707
708 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
709
710
711 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
712}
713
714static int vnt_config(struct ieee80211_hw *hw, u32 changed)
715{
716 struct vnt_private *priv = hw->priv;
717 struct ieee80211_conf *conf = &hw->conf;
718
719 if (changed & IEEE80211_CONF_CHANGE_PS) {
720 if (conf->flags & IEEE80211_CONF_PS)
721 vnt_enable_power_saving(priv, conf->listen_interval);
722 else
723 vnt_disable_power_saving(priv);
724 }
725
726 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
727 (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
728 vnt_set_channel(priv, conf->chandef.chan->hw_value);
729
730 if (conf->chandef.chan->band == NL80211_BAND_5GHZ)
731 priv->bb_type = BB_TYPE_11A;
732 else
733 priv->bb_type = BB_TYPE_11G;
734 }
735
736 if (changed & IEEE80211_CONF_CHANGE_POWER)
737 vnt_rf_setpower(priv, conf->chandef.chan);
738
739 if (conf->flags & (IEEE80211_CONF_OFFCHANNEL | IEEE80211_CONF_IDLE))
740
741 vnt_update_pre_ed_threshold(priv, true);
742 else
743 vnt_update_pre_ed_threshold(priv, false);
744
745 return 0;
746}
747
748static void vnt_bss_info_changed(struct ieee80211_hw *hw,
749 struct ieee80211_vif *vif,
750 struct ieee80211_bss_conf *conf, u32 changed)
751{
752 struct vnt_private *priv = hw->priv;
753
754 priv->current_aid = conf->aid;
755
756 if (changed & BSS_CHANGED_BSSID && conf->bssid)
757 vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);
758
759 if (changed & BSS_CHANGED_BASIC_RATES) {
760 priv->basic_rates = conf->basic_rates;
761
762 vnt_update_top_rates(priv);
763
764 dev_dbg(&priv->usb->dev, "basic rates %x\n", conf->basic_rates);
765 }
766
767 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
768 if (conf->use_short_preamble) {
769 vnt_mac_enable_barker_preamble_mode(priv);
770 priv->preamble_type = PREAMBLE_SHORT;
771 } else {
772 vnt_mac_disable_barker_preamble_mode(priv);
773 priv->preamble_type = PREAMBLE_LONG;
774 }
775 }
776
777 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
778 if (conf->use_cts_prot)
779 vnt_mac_enable_protect_mode(priv);
780 else
781 vnt_mac_disable_protect_mode(priv);
782 }
783
784 if (changed & BSS_CHANGED_ERP_SLOT) {
785 if (conf->use_short_slot)
786 priv->short_slot_time = true;
787 else
788 priv->short_slot_time = false;
789
790 vnt_set_short_slot_time(priv);
791 vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
792 }
793
794 if (changed & (BSS_CHANGED_BASIC_RATES | BSS_CHANGED_ERP_PREAMBLE |
795 BSS_CHANGED_ERP_SLOT))
796 vnt_set_bss_mode(priv);
797
798 if (changed & (BSS_CHANGED_TXPOWER | BSS_CHANGED_BANDWIDTH))
799 vnt_rf_setpower(priv, conf->chandef.chan);
800
801 if (changed & BSS_CHANGED_BEACON_ENABLED) {
802 dev_dbg(&priv->usb->dev,
803 "Beacon enable %d\n", conf->enable_beacon);
804
805 if (conf->enable_beacon) {
806 vnt_beacon_enable(priv, vif, conf);
807
808 vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
809 } else {
810 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
811 }
812 }
813
814 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INFO) &&
815 priv->op_mode != NL80211_IFTYPE_AP) {
816 if (conf->assoc && conf->beacon_rate) {
817 u16 ps_beacon_int = conf->beacon_int;
818
819 if (conf->dtim_period)
820 ps_beacon_int *= conf->dtim_period;
821 else if (hw->conf.listen_interval)
822 ps_beacon_int *= hw->conf.listen_interval;
823
824 vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL,
825 TFTCTL_TSFCNTREN);
826
827 vnt_mac_set_beacon_interval(priv, ps_beacon_int);
828
829 vnt_reset_next_tbtt(priv, conf->beacon_int);
830
831 vnt_adjust_tsf(priv, conf->beacon_rate->hw_value,
832 conf->sync_tsf, priv->current_tsf);
833
834 vnt_update_next_tbtt(priv,
835 conf->sync_tsf, ps_beacon_int);
836 } else {
837 vnt_clear_current_tsf(priv);
838
839 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL,
840 TFTCTL_TSFCNTREN);
841 }
842 }
843}
844
845static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
846 struct netdev_hw_addr_list *mc_list)
847{
848 struct vnt_private *priv = hw->priv;
849 struct netdev_hw_addr *ha;
850 u64 mc_filter = 0;
851 u32 bit_nr;
852
853 netdev_hw_addr_list_for_each(ha, mc_list) {
854 bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
855 mc_filter |= BIT_ULL(bit_nr);
856 }
857
858 priv->mc_list_count = mc_list->count;
859
860 return mc_filter;
861}
862
863static void vnt_configure(struct ieee80211_hw *hw,
864 unsigned int changed_flags,
865 unsigned int *total_flags, u64 multicast)
866{
867 struct vnt_private *priv = hw->priv;
868 u8 rx_mode = 0;
869
870 *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC;
871
872 vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_RCR,
873 MESSAGE_REQUEST_MACREG, sizeof(u8), &rx_mode);
874
875 dev_dbg(&priv->usb->dev, "rx mode in = %x\n", rx_mode);
876
877 if (changed_flags & FIF_ALLMULTI) {
878 if (*total_flags & FIF_ALLMULTI) {
879 if (priv->mc_list_count > 2)
880 vnt_mac_set_filter(priv, ~0);
881 else
882 vnt_mac_set_filter(priv, multicast);
883
884 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
885 } else {
886 rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
887 }
888 }
889
890 if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
891 if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
892 rx_mode &= ~RCR_BSSID;
893 else
894 rx_mode |= RCR_BSSID;
895 }
896
897 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_RCR, rx_mode);
898
899 dev_dbg(&priv->usb->dev, "rx mode out= %x\n", rx_mode);
900}
901
902static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
903 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
904 struct ieee80211_key_conf *key)
905{
906 struct vnt_private *priv = hw->priv;
907
908 switch (cmd) {
909 case SET_KEY:
910 return vnt_set_keys(hw, sta, vif, key);
911 case DISABLE_KEY:
912 if (test_bit(key->hw_key_idx, &priv->key_entry_inuse)) {
913 clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
914
915 vnt_mac_disable_keyentry(priv, key->hw_key_idx);
916 }
917 break;
918
919 default:
920 break;
921 }
922
923 return 0;
924}
925
926static int vnt_get_stats(struct ieee80211_hw *hw,
927 struct ieee80211_low_level_stats *stats)
928{
929 struct vnt_private *priv = hw->priv;
930
931 memcpy(stats, &priv->low_stats, sizeof(*stats));
932
933 return 0;
934}
935
936static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
937{
938 struct vnt_private *priv = hw->priv;
939
940 return priv->current_tsf;
941}
942
943static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
944 u64 tsf)
945{
946 struct vnt_private *priv = hw->priv;
947
948 vnt_update_next_tbtt(priv, tsf, vif->bss_conf.beacon_int);
949}
950
951static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
952{
953 struct vnt_private *priv = hw->priv;
954
955 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
956
957 vnt_clear_current_tsf(priv);
958}
959
960static const struct ieee80211_ops vnt_mac_ops = {
961 .tx = vnt_tx_80211,
962 .start = vnt_start,
963 .stop = vnt_stop,
964 .add_interface = vnt_add_interface,
965 .remove_interface = vnt_remove_interface,
966 .config = vnt_config,
967 .bss_info_changed = vnt_bss_info_changed,
968 .prepare_multicast = vnt_prepare_multicast,
969 .configure_filter = vnt_configure,
970 .set_key = vnt_set_key,
971 .get_stats = vnt_get_stats,
972 .get_tsf = vnt_get_tsf,
973 .set_tsf = vnt_set_tsf,
974 .reset_tsf = vnt_reset_tsf,
975};
976
977int vnt_init(struct vnt_private *priv)
978{
979 if (vnt_init_registers(priv))
980 return -EAGAIN;
981
982 SET_IEEE80211_PERM_ADDR(priv->hw, priv->permanent_net_addr);
983
984 vnt_init_bands(priv);
985
986 if (ieee80211_register_hw(priv->hw))
987 return -ENODEV;
988
989 priv->mac_hw = true;
990
991 vnt_radio_power_off(priv);
992
993 return 0;
994}
995
996static int
997vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
998{
999 struct usb_device *udev;
1000 struct vnt_private *priv;
1001 struct ieee80211_hw *hw;
1002 struct wiphy *wiphy;
1003 int rc;
1004
1005 udev = usb_get_dev(interface_to_usbdev(intf));
1006
1007 dev_notice(&udev->dev, "%s Ver. %s\n",
1008 DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
1009 dev_notice(&udev->dev,
1010 "Copyright (c) 2004 VIA Networking Technologies, Inc.\n");
1011
1012 hw = ieee80211_alloc_hw(sizeof(struct vnt_private), &vnt_mac_ops);
1013 if (!hw) {
1014 dev_err(&udev->dev, "could not register ieee80211_hw\n");
1015 rc = -ENOMEM;
1016 goto err_nomem;
1017 }
1018
1019 priv = hw->priv;
1020 priv->hw = hw;
1021 priv->usb = udev;
1022 priv->intf = intf;
1023
1024 vnt_set_options(priv);
1025
1026 spin_lock_init(&priv->lock);
1027 mutex_init(&priv->usb_lock);
1028
1029 INIT_DELAYED_WORK(&priv->run_command_work, vnt_run_command);
1030
1031 usb_set_intfdata(intf, priv);
1032
1033 wiphy = priv->hw->wiphy;
1034
1035 wiphy->frag_threshold = FRAG_THRESH_DEF;
1036 wiphy->rts_threshold = RTS_THRESH_DEF;
1037 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1038 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
1039
1040 ieee80211_hw_set(priv->hw, TIMING_BEACON_ONLY);
1041 ieee80211_hw_set(priv->hw, SIGNAL_DBM);
1042 ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
1043 ieee80211_hw_set(priv->hw, REPORTS_TX_ACK_STATUS);
1044 ieee80211_hw_set(priv->hw, SUPPORTS_PS);
1045 ieee80211_hw_set(priv->hw, PS_NULLFUNC_STACK);
1046
1047 priv->hw->extra_tx_headroom =
1048 sizeof(struct vnt_tx_buffer) + sizeof(struct vnt_tx_usb_header);
1049 priv->hw->max_signal = 100;
1050
1051 SET_IEEE80211_DEV(priv->hw, &intf->dev);
1052
1053 rc = usb_reset_device(priv->usb);
1054 if (rc)
1055 dev_warn(&priv->usb->dev,
1056 "%s reset fail status=%d\n", __func__, rc);
1057
1058 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
1059 vnt_reset_command_timer(priv);
1060
1061 vnt_schedule_command(priv, WLAN_CMD_INIT_MAC80211);
1062
1063 return 0;
1064
1065err_nomem:
1066 usb_put_dev(udev);
1067
1068 return rc;
1069}
1070
1071static void vt6656_disconnect(struct usb_interface *intf)
1072{
1073 struct vnt_private *priv = usb_get_intfdata(intf);
1074
1075 if (!priv)
1076 return;
1077
1078 if (priv->mac_hw)
1079 ieee80211_unregister_hw(priv->hw);
1080
1081 usb_set_intfdata(intf, NULL);
1082 usb_put_dev(interface_to_usbdev(intf));
1083
1084 set_bit(DEVICE_FLAGS_UNPLUG, &priv->flags);
1085
1086 ieee80211_free_hw(priv->hw);
1087}
1088
1089#ifdef CONFIG_PM
1090
1091static int vt6656_suspend(struct usb_interface *intf, pm_message_t message)
1092{
1093 return 0;
1094}
1095
1096static int vt6656_resume(struct usb_interface *intf)
1097{
1098 return 0;
1099}
1100
1101#endif
1102
1103MODULE_DEVICE_TABLE(usb, vt6656_table);
1104
1105static struct usb_driver vt6656_driver = {
1106 .name = DEVICE_NAME,
1107 .probe = vt6656_probe,
1108 .disconnect = vt6656_disconnect,
1109 .id_table = vt6656_table,
1110#ifdef CONFIG_PM
1111 .suspend = vt6656_suspend,
1112 .resume = vt6656_resume,
1113#endif
1114};
1115
1116module_usb_driver(vt6656_driver);
1117
1118MODULE_FIRMWARE(FIRMWARE_NAME);
1119
