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mac80211: convert HW flags to unsigned long bitmap
[mirror_ubuntu-hirsute-kernel.git] / drivers / staging / vt6656 / main_usb.c
1 /*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * File: main_usb.c
20 *
21 * Purpose: driver entry for initial, open, close, tx and rx.
22 *
23 * Author: Lyndon Chen
24 *
25 * Date: Dec 8, 2005
26 *
27 * Functions:
28 *
29 * vt6656_probe - module initial (insmod) driver entry
30 * vnt_free_tx_bufs - free tx buffer function
31 * vnt_init_registers- initial MAC & BBP & RF internal registers.
32 *
33 * Revision History:
34 */
35 #undef __NO_VERSION__
36
37 #include <linux/etherdevice.h>
38 #include <linux/file.h>
39 #include "device.h"
40 #include "card.h"
41 #include "baseband.h"
42 #include "mac.h"
43 #include "power.h"
44 #include "wcmd.h"
45 #include "rxtx.h"
46 #include "dpc.h"
47 #include "rf.h"
48 #include "firmware.h"
49 #include "usbpipe.h"
50 #include "channel.h"
51 #include "int.h"
52
53 /*
54 * define module options
55 */
56
57 /* version information */
58 #define DRIVER_AUTHOR \
59 "VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>"
60 MODULE_AUTHOR(DRIVER_AUTHOR);
61 MODULE_LICENSE("GPL");
62 MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
63
64 #define RX_DESC_DEF0 64
65 static int vnt_rx_buffers = RX_DESC_DEF0;
66 module_param_named(rx_buffers, vnt_rx_buffers, int, 0644);
67 MODULE_PARM_DESC(rx_buffers, "Number of receive usb rx buffers");
68
69 #define TX_DESC_DEF0 64
70 static int vnt_tx_buffers = TX_DESC_DEF0;
71 module_param_named(tx_buffers, vnt_tx_buffers, int, 0644);
72 MODULE_PARM_DESC(tx_buffers, "Number of receive usb tx buffers");
73
74 #define RTS_THRESH_DEF 2347
75 #define FRAG_THRESH_DEF 2346
76 #define SHORT_RETRY_DEF 8
77 #define LONG_RETRY_DEF 4
78
79 /* BasebandType[] baseband type selected
80 0: indicate 802.11a type
81 1: indicate 802.11b type
82 2: indicate 802.11g type
83 */
84
85 #define BBP_TYPE_DEF 2
86
87 /*
88 * Static vars definitions
89 */
90
91 static struct usb_device_id vt6656_table[] = {
92 {USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
93 {}
94 };
95
96 static void vnt_set_options(struct vnt_private *priv)
97 {
98 /* Set number of TX buffers */
99 if (vnt_tx_buffers < CB_MIN_TX_DESC || vnt_tx_buffers > CB_MAX_TX_DESC)
100 priv->num_tx_context = TX_DESC_DEF0;
101 else
102 priv->num_tx_context = vnt_tx_buffers;
103
104 /* Set number of RX buffers */
105 if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)
106 priv->num_rcb = RX_DESC_DEF0;
107 else
108 priv->num_rcb = vnt_rx_buffers;
109
110 priv->short_retry_limit = SHORT_RETRY_DEF;
111 priv->long_retry_limit = LONG_RETRY_DEF;
112 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
113 priv->bb_type = BBP_TYPE_DEF;
114 priv->packet_type = priv->bb_type;
115 priv->auto_fb_ctrl = AUTO_FB_0;
116 priv->preamble_type = 0;
117 priv->exist_sw_net_addr = false;
118 }
119
120 /*
121 * initialization of MAC & BBP registers
122 */
123 static int vnt_init_registers(struct vnt_private *priv)
124 {
125 struct vnt_cmd_card_init *init_cmd = &priv->init_command;
126 struct vnt_rsp_card_init *init_rsp = &priv->init_response;
127 u8 antenna;
128 int ii;
129 int status = STATUS_SUCCESS;
130 u8 tmp;
131 u8 calib_tx_iq = 0, calib_tx_dc = 0, calib_rx_iq = 0;
132
133 dev_dbg(&priv->usb->dev, "---->INIbInitAdapter. [%d][%d]\n",
134 DEVICE_INIT_COLD, priv->packet_type);
135
136 if (!vnt_check_firmware_version(priv)) {
137 if (vnt_download_firmware(priv) == true) {
138 if (vnt_firmware_branch_to_sram(priv) == false) {
139 dev_dbg(&priv->usb->dev,
140 " vnt_firmware_branch_to_sram fail\n");
141 return false;
142 }
143 } else {
144 dev_dbg(&priv->usb->dev, "FIRMWAREbDownload fail\n");
145 return false;
146 }
147 }
148
149 if (!vnt_vt3184_init(priv)) {
150 dev_dbg(&priv->usb->dev, "vnt_vt3184_init fail\n");
151 return false;
152 }
153
154 init_cmd->init_class = DEVICE_INIT_COLD;
155 init_cmd->exist_sw_net_addr = priv->exist_sw_net_addr;
156 for (ii = 0; ii < 6; ii++)
157 init_cmd->sw_net_addr[ii] = priv->current_net_addr[ii];
158 init_cmd->short_retry_limit = priv->short_retry_limit;
159 init_cmd->long_retry_limit = priv->long_retry_limit;
160
161 /* issue card_init command to device */
162 status = vnt_control_out(priv,
163 MESSAGE_TYPE_CARDINIT, 0, 0,
164 sizeof(struct vnt_cmd_card_init), (u8 *)init_cmd);
165 if (status != STATUS_SUCCESS) {
166 dev_dbg(&priv->usb->dev, "Issue Card init fail\n");
167 return false;
168 }
169
170 status = vnt_control_in(priv, MESSAGE_TYPE_INIT_RSP, 0, 0,
171 sizeof(struct vnt_rsp_card_init), (u8 *)init_rsp);
172 if (status != STATUS_SUCCESS) {
173 dev_dbg(&priv->usb->dev,
174 "Cardinit request in status fail!\n");
175 return false;
176 }
177
178 /* local ID for AES functions */
179 status = vnt_control_in(priv, MESSAGE_TYPE_READ,
180 MAC_REG_LOCALID, MESSAGE_REQUEST_MACREG, 1,
181 &priv->local_id);
182 if (status != STATUS_SUCCESS)
183 return false;
184
185 /* do MACbSoftwareReset in MACvInitialize */
186
187 priv->top_ofdm_basic_rate = RATE_24M;
188 priv->top_cck_basic_rate = RATE_1M;
189
190 /* target to IF pin while programming to RF chip */
191 priv->power = 0xFF;
192
193 priv->cck_pwr = priv->eeprom[EEP_OFS_PWR_CCK];
194 priv->ofdm_pwr_g = priv->eeprom[EEP_OFS_PWR_OFDMG];
195 /* load power table */
196 for (ii = 0; ii < 14; ii++) {
197 priv->cck_pwr_tbl[ii] =
198 priv->eeprom[ii + EEP_OFS_CCK_PWR_TBL];
199 if (priv->cck_pwr_tbl[ii] == 0)
200 priv->cck_pwr_tbl[ii] = priv->cck_pwr;
201
202 priv->ofdm_pwr_tbl[ii] =
203 priv->eeprom[ii + EEP_OFS_OFDM_PWR_TBL];
204 if (priv->ofdm_pwr_tbl[ii] == 0)
205 priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_g;
206 }
207
208 /*
209 * original zonetype is USA, but custom zonetype is Europe,
210 * then need to recover 12, 13, 14 channels with 11 channel
211 */
212 for (ii = 11; ii < 14; ii++) {
213 priv->cck_pwr_tbl[ii] = priv->cck_pwr_tbl[10];
214 priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_tbl[10];
215 }
216
217 priv->ofdm_pwr_a = 0x34; /* same as RFbMA2829SelectChannel */
218
219 /* load OFDM A power table */
220 for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
221 priv->ofdm_a_pwr_tbl[ii] =
222 priv->eeprom[ii + EEP_OFS_OFDMA_PWR_TBL];
223
224 if (priv->ofdm_a_pwr_tbl[ii] == 0)
225 priv->ofdm_a_pwr_tbl[ii] = priv->ofdm_pwr_a;
226 }
227
228 antenna = priv->eeprom[EEP_OFS_ANTENNA];
229
230 if (antenna & EEP_ANTINV)
231 priv->tx_rx_ant_inv = true;
232 else
233 priv->tx_rx_ant_inv = false;
234
235 antenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
236
237 if (antenna == 0) /* if not set default is both */
238 antenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
239
240 if (antenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
241 priv->tx_antenna_mode = ANT_B;
242 priv->rx_antenna_sel = 1;
243
244 if (priv->tx_rx_ant_inv == true)
245 priv->rx_antenna_mode = ANT_A;
246 else
247 priv->rx_antenna_mode = ANT_B;
248 } else {
249 priv->rx_antenna_sel = 0;
250
251 if (antenna & EEP_ANTENNA_AUX) {
252 priv->tx_antenna_mode = ANT_A;
253
254 if (priv->tx_rx_ant_inv == true)
255 priv->rx_antenna_mode = ANT_B;
256 else
257 priv->rx_antenna_mode = ANT_A;
258 } else {
259 priv->tx_antenna_mode = ANT_B;
260
261 if (priv->tx_rx_ant_inv == true)
262 priv->rx_antenna_mode = ANT_A;
263 else
264 priv->rx_antenna_mode = ANT_B;
265 }
266 }
267
268 /* Set initial antenna mode */
269 vnt_set_antenna_mode(priv, priv->rx_antenna_mode);
270
271 /* get Auto Fall Back type */
272 priv->auto_fb_ctrl = AUTO_FB_0;
273
274 /* default Auto Mode */
275 priv->bb_type = BB_TYPE_11G;
276
277 /* get RFType */
278 priv->rf_type = init_rsp->rf_type;
279
280 /* load vt3266 calibration parameters in EEPROM */
281 if (priv->rf_type == RF_VT3226D0) {
282 if ((priv->eeprom[EEP_OFS_MAJOR_VER] == 0x1) &&
283 (priv->eeprom[EEP_OFS_MINOR_VER] >= 0x4)) {
284
285 calib_tx_iq = priv->eeprom[EEP_OFS_CALIB_TX_IQ];
286 calib_tx_dc = priv->eeprom[EEP_OFS_CALIB_TX_DC];
287 calib_rx_iq = priv->eeprom[EEP_OFS_CALIB_RX_IQ];
288 if (calib_tx_iq || calib_tx_dc || calib_rx_iq) {
289 /* CR255, enable TX/RX IQ and
290 DC compensation mode */
291 vnt_control_out_u8(priv,
292 MESSAGE_REQUEST_BBREG,
293 0xff,
294 0x03);
295 /* CR251, TX I/Q Imbalance Calibration */
296 vnt_control_out_u8(priv,
297 MESSAGE_REQUEST_BBREG,
298 0xfb,
299 calib_tx_iq);
300 /* CR252, TX DC-Offset Calibration */
301 vnt_control_out_u8(priv,
302 MESSAGE_REQUEST_BBREG,
303 0xfC,
304 calib_tx_dc);
305 /* CR253, RX I/Q Imbalance Calibration */
306 vnt_control_out_u8(priv,
307 MESSAGE_REQUEST_BBREG,
308 0xfd,
309 calib_rx_iq);
310 } else {
311 /* CR255, turn off
312 BB Calibration compensation */
313 vnt_control_out_u8(priv,
314 MESSAGE_REQUEST_BBREG,
315 0xff,
316 0x0);
317 }
318 }
319 }
320
321 /* get permanent network address */
322 memcpy(priv->permanent_net_addr, init_rsp->net_addr, 6);
323 ether_addr_copy(priv->current_net_addr, priv->permanent_net_addr);
324
325 /* if exist SW network address, use it */
326 dev_dbg(&priv->usb->dev, "Network address = %pM\n",
327 priv->current_net_addr);
328
329 /*
330 * set BB and packet type at the same time
331 * set Short Slot Time, xIFS, and RSPINF
332 */
333 if (priv->bb_type == BB_TYPE_11A)
334 priv->short_slot_time = true;
335 else
336 priv->short_slot_time = false;
337
338 vnt_set_short_slot_time(priv);
339
340 priv->radio_ctl = priv->eeprom[EEP_OFS_RADIOCTL];
341
342 if ((priv->radio_ctl & EEP_RADIOCTL_ENABLE) != 0) {
343 status = vnt_control_in(priv, MESSAGE_TYPE_READ,
344 MAC_REG_GPIOCTL1, MESSAGE_REQUEST_MACREG, 1, &tmp);
345
346 if (status != STATUS_SUCCESS)
347 return false;
348
349 if ((tmp & GPIO3_DATA) == 0)
350 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1,
351 GPIO3_INTMD);
352 else
353 vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1,
354 GPIO3_INTMD);
355 }
356
357 vnt_mac_set_led(priv, LEDSTS_TMLEN, 0x38);
358
359 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
360
361 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, 0x01);
362
363 vnt_radio_power_on(priv);
364
365 dev_dbg(&priv->usb->dev, "<----INIbInitAdapter Exit\n");
366
367 return true;
368 }
369
370 static void vnt_free_tx_bufs(struct vnt_private *priv)
371 {
372 struct vnt_usb_send_context *tx_context;
373 int ii;
374
375 for (ii = 0; ii < priv->num_tx_context; ii++) {
376 tx_context = priv->tx_context[ii];
377 /* deallocate URBs */
378 if (tx_context->urb) {
379 usb_kill_urb(tx_context->urb);
380 usb_free_urb(tx_context->urb);
381 }
382
383 kfree(tx_context);
384 }
385 }
386
387 static void vnt_free_rx_bufs(struct vnt_private *priv)
388 {
389 struct vnt_rcb *rcb;
390 int ii;
391
392 for (ii = 0; ii < priv->num_rcb; ii++) {
393 rcb = priv->rcb[ii];
394 if (!rcb)
395 continue;
396
397 /* deallocate URBs */
398 if (rcb->urb) {
399 usb_kill_urb(rcb->urb);
400 usb_free_urb(rcb->urb);
401 }
402
403 /* deallocate skb */
404 if (rcb->skb)
405 dev_kfree_skb(rcb->skb);
406
407 kfree(rcb);
408 }
409 }
410
411 static void usb_device_reset(struct vnt_private *priv)
412 {
413 int status;
414
415 status = usb_reset_device(priv->usb);
416 if (status)
417 dev_warn(&priv->usb->dev,
418 "usb_device_reset fail status=%d\n", status);
419 }
420
421 static void vnt_free_int_bufs(struct vnt_private *priv)
422 {
423 kfree(priv->int_buf.data_buf);
424 }
425
426 static bool vnt_alloc_bufs(struct vnt_private *priv)
427 {
428 struct vnt_usb_send_context *tx_context;
429 struct vnt_rcb *rcb;
430 int ii;
431
432 for (ii = 0; ii < priv->num_tx_context; ii++) {
433 tx_context = kmalloc(sizeof(struct vnt_usb_send_context),
434 GFP_KERNEL);
435 if (tx_context == NULL)
436 goto free_tx;
437
438 priv->tx_context[ii] = tx_context;
439 tx_context->priv = priv;
440 tx_context->pkt_no = ii;
441
442 /* allocate URBs */
443 tx_context->urb = usb_alloc_urb(0, GFP_ATOMIC);
444 if (!tx_context->urb) {
445 dev_err(&priv->usb->dev, "alloc tx urb failed\n");
446 goto free_tx;
447 }
448
449 tx_context->in_use = false;
450 }
451
452 for (ii = 0; ii < priv->num_rcb; ii++) {
453 priv->rcb[ii] = kzalloc(sizeof(struct vnt_rcb), GFP_KERNEL);
454 if (!priv->rcb[ii]) {
455 dev_err(&priv->usb->dev,
456 "failed to allocate rcb no %d\n", ii);
457 goto free_rx_tx;
458 }
459
460 rcb = priv->rcb[ii];
461
462 rcb->priv = priv;
463
464 /* allocate URBs */
465 rcb->urb = usb_alloc_urb(0, GFP_ATOMIC);
466 if (rcb->urb == NULL) {
467 dev_err(&priv->usb->dev, "Failed to alloc rx urb\n");
468 goto free_rx_tx;
469 }
470
471 rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
472 if (rcb->skb == NULL)
473 goto free_rx_tx;
474
475 rcb->in_use = false;
476
477 /* submit rx urb */
478 if (vnt_submit_rx_urb(priv, rcb))
479 goto free_rx_tx;
480 }
481
482 priv->interrupt_urb = usb_alloc_urb(0, GFP_ATOMIC);
483 if (priv->interrupt_urb == NULL) {
484 dev_err(&priv->usb->dev, "Failed to alloc int urb\n");
485 goto free_rx_tx;
486 }
487
488 priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
489 if (priv->int_buf.data_buf == NULL) {
490 usb_free_urb(priv->interrupt_urb);
491 goto free_rx_tx;
492 }
493
494 return true;
495
496 free_rx_tx:
497 vnt_free_rx_bufs(priv);
498
499 free_tx:
500 vnt_free_tx_bufs(priv);
501
502 return false;
503 }
504
505 static void vnt_tx_80211(struct ieee80211_hw *hw,
506 struct ieee80211_tx_control *control, struct sk_buff *skb)
507 {
508 struct vnt_private *priv = hw->priv;
509
510 ieee80211_stop_queues(hw);
511
512 if (vnt_tx_packet(priv, skb)) {
513 ieee80211_free_txskb(hw, skb);
514
515 ieee80211_wake_queues(hw);
516 }
517 }
518
519 static int vnt_start(struct ieee80211_hw *hw)
520 {
521 struct vnt_private *priv = hw->priv;
522
523 priv->rx_buf_sz = MAX_TOTAL_SIZE_WITH_ALL_HEADERS;
524
525 if (vnt_alloc_bufs(priv) == false) {
526 dev_dbg(&priv->usb->dev, "vnt_alloc_bufs fail...\n");
527 return -ENOMEM;
528 }
529
530 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
531
532 if (vnt_init_registers(priv) == false) {
533 dev_dbg(&priv->usb->dev, " init register fail\n");
534 goto free_all;
535 }
536
537 priv->int_interval = 1; /* bInterval is set to 1 */
538
539 vnt_int_start_interrupt(priv);
540
541 ieee80211_wake_queues(hw);
542
543 return 0;
544
545 free_all:
546 vnt_free_rx_bufs(priv);
547 vnt_free_tx_bufs(priv);
548 vnt_free_int_bufs(priv);
549
550 usb_kill_urb(priv->interrupt_urb);
551 usb_free_urb(priv->interrupt_urb);
552
553 return -ENOMEM;
554 }
555
556 static void vnt_stop(struct ieee80211_hw *hw)
557 {
558 struct vnt_private *priv = hw->priv;
559 int i;
560
561 if (!priv)
562 return;
563
564 for (i = 0; i < MAX_KEY_TABLE; i++)
565 vnt_mac_disable_keyentry(priv, i);
566
567 /* clear all keys */
568 priv->key_entry_inuse = 0;
569
570 if (!test_bit(DEVICE_FLAGS_UNPLUG, &priv->flags))
571 vnt_mac_shutdown(priv);
572
573 ieee80211_stop_queues(hw);
574
575 set_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
576
577 cancel_delayed_work_sync(&priv->run_command_work);
578
579 priv->cmd_running = false;
580
581 vnt_free_tx_bufs(priv);
582 vnt_free_rx_bufs(priv);
583 vnt_free_int_bufs(priv);
584
585 usb_kill_urb(priv->interrupt_urb);
586 usb_free_urb(priv->interrupt_urb);
587 }
588
589 static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
590 {
591 struct vnt_private *priv = hw->priv;
592
593 priv->vif = vif;
594
595 switch (vif->type) {
596 case NL80211_IFTYPE_STATION:
597 break;
598 case NL80211_IFTYPE_ADHOC:
599 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
600
601 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
602
603 break;
604 case NL80211_IFTYPE_AP:
605 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
606
607 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_AP);
608
609 break;
610 default:
611 return -EOPNOTSUPP;
612 }
613
614 priv->op_mode = vif->type;
615
616 vnt_set_bss_mode(priv);
617
618 /* LED blink on TX */
619 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_INTER);
620
621 return 0;
622 }
623
624 static void vnt_remove_interface(struct ieee80211_hw *hw,
625 struct ieee80211_vif *vif)
626 {
627 struct vnt_private *priv = hw->priv;
628
629 switch (vif->type) {
630 case NL80211_IFTYPE_STATION:
631 break;
632 case NL80211_IFTYPE_ADHOC:
633 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
634 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
635 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
636 break;
637 case NL80211_IFTYPE_AP:
638 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
639 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
640 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_AP);
641 break;
642 default:
643 break;
644 }
645
646 vnt_radio_power_off(priv);
647
648 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
649
650 /* LED slow blink */
651 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
652 }
653
654 static int vnt_config(struct ieee80211_hw *hw, u32 changed)
655 {
656 struct vnt_private *priv = hw->priv;
657 struct ieee80211_conf *conf = &hw->conf;
658 u8 bb_type;
659
660 if (changed & IEEE80211_CONF_CHANGE_PS) {
661 if (conf->flags & IEEE80211_CONF_PS)
662 vnt_enable_power_saving(priv, conf->listen_interval);
663 else
664 vnt_disable_power_saving(priv);
665 }
666
667 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
668 (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
669 vnt_set_channel(priv, conf->chandef.chan->hw_value);
670
671 if (conf->chandef.chan->band == IEEE80211_BAND_5GHZ)
672 bb_type = BB_TYPE_11A;
673 else
674 bb_type = BB_TYPE_11G;
675
676 if (priv->bb_type != bb_type) {
677 priv->bb_type = bb_type;
678
679 vnt_set_bss_mode(priv);
680 }
681 }
682
683 if (changed & IEEE80211_CONF_CHANGE_POWER) {
684 if (priv->bb_type == BB_TYPE_11B)
685 priv->current_rate = RATE_1M;
686 else
687 priv->current_rate = RATE_54M;
688
689 vnt_rf_setpower(priv, priv->current_rate,
690 conf->chandef.chan->hw_value);
691 }
692
693 return 0;
694 }
695
696 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
697 struct ieee80211_vif *vif, struct ieee80211_bss_conf *conf,
698 u32 changed)
699 {
700 struct vnt_private *priv = hw->priv;
701
702 priv->current_aid = conf->aid;
703
704 if (changed & BSS_CHANGED_BSSID)
705 vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);
706
707
708 if (changed & BSS_CHANGED_BASIC_RATES) {
709 priv->basic_rates = conf->basic_rates;
710
711 vnt_update_top_rates(priv);
712
713 dev_dbg(&priv->usb->dev, "basic rates %x\n", conf->basic_rates);
714 }
715
716 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
717 if (conf->use_short_preamble) {
718 vnt_mac_enable_barker_preamble_mode(priv);
719 priv->preamble_type = true;
720 } else {
721 vnt_mac_disable_barker_preamble_mode(priv);
722 priv->preamble_type = false;
723 }
724 }
725
726 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
727 if (conf->use_cts_prot)
728 vnt_mac_enable_protect_mode(priv);
729 else
730 vnt_mac_disable_protect_mode(priv);
731 }
732
733 if (changed & BSS_CHANGED_ERP_SLOT) {
734 if (conf->use_short_slot)
735 priv->short_slot_time = true;
736 else
737 priv->short_slot_time = false;
738
739 vnt_set_short_slot_time(priv);
740 vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
741 vnt_update_pre_ed_threshold(priv, false);
742 }
743
744 if (changed & BSS_CHANGED_TXPOWER)
745 vnt_rf_setpower(priv, priv->current_rate,
746 conf->chandef.chan->hw_value);
747
748 if (changed & BSS_CHANGED_BEACON_ENABLED) {
749 dev_dbg(&priv->usb->dev,
750 "Beacon enable %d\n", conf->enable_beacon);
751
752 if (conf->enable_beacon) {
753 vnt_beacon_enable(priv, vif, conf);
754
755 vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
756 } else {
757 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
758 }
759 }
760 }
761
762 static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
763 struct netdev_hw_addr_list *mc_list)
764 {
765 struct vnt_private *priv = hw->priv;
766 struct netdev_hw_addr *ha;
767 u64 mc_filter = 0;
768 u32 bit_nr = 0;
769
770 netdev_hw_addr_list_for_each(ha, mc_list) {
771 bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
772
773 mc_filter |= 1ULL << (bit_nr & 0x3f);
774 }
775
776 priv->mc_list_count = mc_list->count;
777
778 return mc_filter;
779 }
780
781 static void vnt_configure(struct ieee80211_hw *hw,
782 unsigned int changed_flags, unsigned int *total_flags, u64 multicast)
783 {
784 struct vnt_private *priv = hw->priv;
785 u8 rx_mode = 0;
786 int rc;
787
788 *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC;
789
790 rc = vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_RCR,
791 MESSAGE_REQUEST_MACREG, sizeof(u8), &rx_mode);
792
793 if (!rc)
794 rx_mode = RCR_MULTICAST | RCR_BROADCAST;
795
796 dev_dbg(&priv->usb->dev, "rx mode in = %x\n", rx_mode);
797
798 if (changed_flags & FIF_ALLMULTI) {
799 if (*total_flags & FIF_ALLMULTI) {
800 if (priv->mc_list_count > 2)
801 vnt_mac_set_filter(priv, ~0);
802 else
803 vnt_mac_set_filter(priv, multicast);
804
805 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
806 } else {
807 rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
808 }
809
810 }
811
812 if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
813 if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
814 rx_mode &= ~RCR_BSSID;
815 else
816 rx_mode |= RCR_BSSID;
817 }
818
819 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_RCR, rx_mode);
820
821 dev_dbg(&priv->usb->dev, "rx mode out= %x\n", rx_mode);
822 }
823
824 static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
825 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
826 struct ieee80211_key_conf *key)
827 {
828 struct vnt_private *priv = hw->priv;
829
830 switch (cmd) {
831 case SET_KEY:
832 if (vnt_set_keys(hw, sta, vif, key))
833 return -EOPNOTSUPP;
834 break;
835 case DISABLE_KEY:
836 if (test_bit(key->hw_key_idx, &priv->key_entry_inuse))
837 clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
838 default:
839 break;
840 }
841
842 return 0;
843 }
844
845 static void vnt_sw_scan_start(struct ieee80211_hw *hw,
846 struct ieee80211_vif *vif,
847 const u8 *addr)
848 {
849 struct vnt_private *priv = hw->priv;
850
851 vnt_set_bss_mode(priv);
852 /* Set max sensitivity*/
853 vnt_update_pre_ed_threshold(priv, true);
854 }
855
856 static void vnt_sw_scan_complete(struct ieee80211_hw *hw,
857 struct ieee80211_vif *vif)
858 {
859 struct vnt_private *priv = hw->priv;
860
861 /* Return sensitivity to channel level*/
862 vnt_update_pre_ed_threshold(priv, false);
863 }
864
865 static int vnt_get_stats(struct ieee80211_hw *hw,
866 struct ieee80211_low_level_stats *stats)
867 {
868 struct vnt_private *priv = hw->priv;
869
870 memcpy(stats, &priv->low_stats, sizeof(*stats));
871
872 return 0;
873 }
874
875 static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
876 {
877 struct vnt_private *priv = hw->priv;
878
879 return priv->current_tsf;
880 }
881
882 static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
883 u64 tsf)
884 {
885 struct vnt_private *priv = hw->priv;
886
887 vnt_update_next_tbtt(priv, tsf, vif->bss_conf.beacon_int);
888 }
889
890 static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
891 {
892 struct vnt_private *priv = hw->priv;
893
894 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
895
896 vnt_clear_current_tsf(priv);
897 }
898
899 static const struct ieee80211_ops vnt_mac_ops = {
900 .tx = vnt_tx_80211,
901 .start = vnt_start,
902 .stop = vnt_stop,
903 .add_interface = vnt_add_interface,
904 .remove_interface = vnt_remove_interface,
905 .config = vnt_config,
906 .bss_info_changed = vnt_bss_info_changed,
907 .prepare_multicast = vnt_prepare_multicast,
908 .configure_filter = vnt_configure,
909 .set_key = vnt_set_key,
910 .sw_scan_start = vnt_sw_scan_start,
911 .sw_scan_complete = vnt_sw_scan_complete,
912 .get_stats = vnt_get_stats,
913 .get_tsf = vnt_get_tsf,
914 .set_tsf = vnt_set_tsf,
915 .reset_tsf = vnt_reset_tsf,
916 };
917
918 int vnt_init(struct vnt_private *priv)
919 {
920
921 if (!(vnt_init_registers(priv)))
922 return -EAGAIN;
923
924 SET_IEEE80211_PERM_ADDR(priv->hw, priv->permanent_net_addr);
925
926 vnt_init_bands(priv);
927
928 if (ieee80211_register_hw(priv->hw))
929 return -ENODEV;
930
931 priv->mac_hw = true;
932
933 vnt_radio_power_off(priv);
934
935 return 0;
936 }
937
938 static int
939 vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
940 {
941 struct usb_device *udev;
942 struct vnt_private *priv;
943 struct ieee80211_hw *hw;
944 struct wiphy *wiphy;
945 int rc = 0;
946
947 udev = usb_get_dev(interface_to_usbdev(intf));
948
949 dev_notice(&udev->dev, "%s Ver. %s\n",
950 DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
951 dev_notice(&udev->dev,
952 "Copyright (c) 2004 VIA Networking Technologies, Inc.\n");
953
954 hw = ieee80211_alloc_hw(sizeof(struct vnt_private), &vnt_mac_ops);
955 if (!hw) {
956 dev_err(&udev->dev, "could not register ieee80211_hw\n");
957 rc = -ENOMEM;
958 goto err_nomem;
959 }
960
961 priv = hw->priv;
962 priv->hw = hw;
963 priv->usb = udev;
964
965 vnt_set_options(priv);
966
967 spin_lock_init(&priv->lock);
968 mutex_init(&priv->usb_lock);
969
970 INIT_DELAYED_WORK(&priv->run_command_work, vnt_run_command);
971
972 usb_set_intfdata(intf, priv);
973
974 wiphy = priv->hw->wiphy;
975
976 wiphy->frag_threshold = FRAG_THRESH_DEF;
977 wiphy->rts_threshold = RTS_THRESH_DEF;
978 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
979 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
980
981 ieee80211_hw_set(priv->hw, TIMING_BEACON_ONLY);
982 ieee80211_hw_set(priv->hw, SIGNAL_DBM);
983 ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
984 ieee80211_hw_set(priv->hw, REPORTS_TX_ACK_STATUS);
985
986 priv->hw->max_signal = 100;
987
988 SET_IEEE80211_DEV(priv->hw, &intf->dev);
989
990 usb_device_reset(priv);
991
992 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
993 vnt_reset_command_timer(priv);
994
995 vnt_schedule_command(priv, WLAN_CMD_INIT_MAC80211);
996
997 return 0;
998
999 err_nomem:
1000 usb_put_dev(udev);
1001
1002 return rc;
1003 }
1004
1005 static void vt6656_disconnect(struct usb_interface *intf)
1006 {
1007 struct vnt_private *priv = usb_get_intfdata(intf);
1008
1009 if (!priv)
1010 return;
1011
1012 if (priv->mac_hw)
1013 ieee80211_unregister_hw(priv->hw);
1014
1015 usb_set_intfdata(intf, NULL);
1016 usb_put_dev(interface_to_usbdev(intf));
1017
1018 set_bit(DEVICE_FLAGS_UNPLUG, &priv->flags);
1019
1020 ieee80211_free_hw(priv->hw);
1021 }
1022
1023 #ifdef CONFIG_PM
1024
1025 static int vt6656_suspend(struct usb_interface *intf, pm_message_t message)
1026 {
1027 return 0;
1028 }
1029
1030 static int vt6656_resume(struct usb_interface *intf)
1031 {
1032 return 0;
1033 }
1034
1035 #endif /* CONFIG_PM */
1036
1037 MODULE_DEVICE_TABLE(usb, vt6656_table);
1038
1039 static struct usb_driver vt6656_driver = {
1040 .name = DEVICE_NAME,
1041 .probe = vt6656_probe,
1042 .disconnect = vt6656_disconnect,
1043 .id_table = vt6656_table,
1044 #ifdef CONFIG_PM
1045 .suspend = vt6656_suspend,
1046 .resume = vt6656_resume,
1047 #endif /* CONFIG_PM */
1048 };
1049
1050 module_usb_driver(vt6656_driver);
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