2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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.
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.
18 * Purpose: driver entry for initial, open, close, tx and rx.
26 * vt6656_probe - module initial (insmod) driver entry
27 * vnt_free_tx_bufs - free tx buffer function
28 * vnt_init_registers- initial MAC & BBP & RF internal registers.
34 #include <linux/etherdevice.h>
35 #include <linux/file.h>
51 * define module options
54 /* version information */
55 #define DRIVER_AUTHOR \
56 "VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>"
57 MODULE_AUTHOR(DRIVER_AUTHOR);
58 MODULE_LICENSE("GPL");
59 MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
61 #define RX_DESC_DEF0 64
62 static int vnt_rx_buffers = RX_DESC_DEF0;
63 module_param_named(rx_buffers, vnt_rx_buffers, int, 0644);
64 MODULE_PARM_DESC(rx_buffers, "Number of receive usb rx buffers");
66 #define TX_DESC_DEF0 64
67 static int vnt_tx_buffers = TX_DESC_DEF0;
68 module_param_named(tx_buffers, vnt_tx_buffers, int, 0644);
69 MODULE_PARM_DESC(tx_buffers, "Number of receive usb tx buffers");
71 #define RTS_THRESH_DEF 2347
72 #define FRAG_THRESH_DEF 2346
73 #define SHORT_RETRY_DEF 8
74 #define LONG_RETRY_DEF 4
76 /* BasebandType[] baseband type selected
77 * 0: indicate 802.11a type
78 * 1: indicate 802.11b type
79 * 2: indicate 802.11g type
82 #define BBP_TYPE_DEF 2
85 * Static vars definitions
88 static struct usb_device_id vt6656_table[] = {
89 {USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
93 static void vnt_set_options(struct vnt_private *priv)
95 /* Set number of TX buffers */
96 if (vnt_tx_buffers < CB_MIN_TX_DESC || vnt_tx_buffers > CB_MAX_TX_DESC)
97 priv->num_tx_context = TX_DESC_DEF0;
99 priv->num_tx_context = vnt_tx_buffers;
101 /* Set number of RX buffers */
102 if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)
103 priv->num_rcb = RX_DESC_DEF0;
105 priv->num_rcb = vnt_rx_buffers;
107 priv->short_retry_limit = SHORT_RETRY_DEF;
108 priv->long_retry_limit = LONG_RETRY_DEF;
109 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
110 priv->bb_type = BBP_TYPE_DEF;
111 priv->packet_type = priv->bb_type;
112 priv->auto_fb_ctrl = AUTO_FB_0;
113 priv->preamble_type = 0;
114 priv->exist_sw_net_addr = false;
118 * initialization of MAC & BBP registers
120 static int vnt_init_registers(struct vnt_private *priv)
122 struct vnt_cmd_card_init *init_cmd = &priv->init_command;
123 struct vnt_rsp_card_init *init_rsp = &priv->init_response;
126 int status = STATUS_SUCCESS;
128 u8 calib_tx_iq = 0, calib_tx_dc = 0, calib_rx_iq = 0;
130 dev_dbg(&priv->usb->dev, "---->INIbInitAdapter. [%d][%d]\n",
131 DEVICE_INIT_COLD, priv->packet_type);
133 if (!vnt_check_firmware_version(priv)) {
134 if (vnt_download_firmware(priv) == true) {
135 if (vnt_firmware_branch_to_sram(priv) == false) {
136 dev_dbg(&priv->usb->dev,
137 " vnt_firmware_branch_to_sram fail\n");
141 dev_dbg(&priv->usb->dev, "FIRMWAREbDownload fail\n");
146 if (!vnt_vt3184_init(priv)) {
147 dev_dbg(&priv->usb->dev, "vnt_vt3184_init fail\n");
151 init_cmd->init_class = DEVICE_INIT_COLD;
152 init_cmd->exist_sw_net_addr = priv->exist_sw_net_addr;
153 for (ii = 0; ii < 6; ii++)
154 init_cmd->sw_net_addr[ii] = priv->current_net_addr[ii];
155 init_cmd->short_retry_limit = priv->short_retry_limit;
156 init_cmd->long_retry_limit = priv->long_retry_limit;
158 /* issue card_init command to device */
159 status = vnt_control_out(priv,
160 MESSAGE_TYPE_CARDINIT, 0, 0,
161 sizeof(struct vnt_cmd_card_init), (u8 *)init_cmd);
162 if (status != STATUS_SUCCESS) {
163 dev_dbg(&priv->usb->dev, "Issue Card init fail\n");
167 status = vnt_control_in(priv, MESSAGE_TYPE_INIT_RSP, 0, 0,
168 sizeof(struct vnt_rsp_card_init), (u8 *)init_rsp);
169 if (status != STATUS_SUCCESS) {
170 dev_dbg(&priv->usb->dev,
171 "Cardinit request in status fail!\n");
175 /* local ID for AES functions */
176 status = vnt_control_in(priv, MESSAGE_TYPE_READ,
177 MAC_REG_LOCALID, MESSAGE_REQUEST_MACREG, 1,
179 if (status != STATUS_SUCCESS)
182 /* do MACbSoftwareReset in MACvInitialize */
184 priv->top_ofdm_basic_rate = RATE_24M;
185 priv->top_cck_basic_rate = RATE_1M;
187 /* target to IF pin while programming to RF chip */
190 priv->cck_pwr = priv->eeprom[EEP_OFS_PWR_CCK];
191 priv->ofdm_pwr_g = priv->eeprom[EEP_OFS_PWR_OFDMG];
192 /* load power table */
193 for (ii = 0; ii < 14; ii++) {
194 priv->cck_pwr_tbl[ii] =
195 priv->eeprom[ii + EEP_OFS_CCK_PWR_TBL];
196 if (priv->cck_pwr_tbl[ii] == 0)
197 priv->cck_pwr_tbl[ii] = priv->cck_pwr;
199 priv->ofdm_pwr_tbl[ii] =
200 priv->eeprom[ii + EEP_OFS_OFDM_PWR_TBL];
201 if (priv->ofdm_pwr_tbl[ii] == 0)
202 priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_g;
206 * original zonetype is USA, but custom zonetype is Europe,
207 * then need to recover 12, 13, 14 channels with 11 channel
209 for (ii = 11; ii < 14; ii++) {
210 priv->cck_pwr_tbl[ii] = priv->cck_pwr_tbl[10];
211 priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_tbl[10];
214 priv->ofdm_pwr_a = 0x34; /* same as RFbMA2829SelectChannel */
216 /* load OFDM A power table */
217 for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
218 priv->ofdm_a_pwr_tbl[ii] =
219 priv->eeprom[ii + EEP_OFS_OFDMA_PWR_TBL];
221 if (priv->ofdm_a_pwr_tbl[ii] == 0)
222 priv->ofdm_a_pwr_tbl[ii] = priv->ofdm_pwr_a;
225 antenna = priv->eeprom[EEP_OFS_ANTENNA];
227 if (antenna & EEP_ANTINV)
228 priv->tx_rx_ant_inv = true;
230 priv->tx_rx_ant_inv = false;
232 antenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
234 if (antenna == 0) /* if not set default is both */
235 antenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
237 if (antenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
238 priv->tx_antenna_mode = ANT_B;
239 priv->rx_antenna_sel = 1;
241 if (priv->tx_rx_ant_inv)
242 priv->rx_antenna_mode = ANT_A;
244 priv->rx_antenna_mode = ANT_B;
246 priv->rx_antenna_sel = 0;
248 if (antenna & EEP_ANTENNA_AUX) {
249 priv->tx_antenna_mode = ANT_A;
251 if (priv->tx_rx_ant_inv)
252 priv->rx_antenna_mode = ANT_B;
254 priv->rx_antenna_mode = ANT_A;
256 priv->tx_antenna_mode = ANT_B;
258 if (priv->tx_rx_ant_inv)
259 priv->rx_antenna_mode = ANT_A;
261 priv->rx_antenna_mode = ANT_B;
265 /* Set initial antenna mode */
266 vnt_set_antenna_mode(priv, priv->rx_antenna_mode);
268 /* get Auto Fall Back type */
269 priv->auto_fb_ctrl = AUTO_FB_0;
271 /* default Auto Mode */
272 priv->bb_type = BB_TYPE_11G;
275 priv->rf_type = init_rsp->rf_type;
277 /* load vt3266 calibration parameters in EEPROM */
278 if (priv->rf_type == RF_VT3226D0) {
279 if ((priv->eeprom[EEP_OFS_MAJOR_VER] == 0x1) &&
280 (priv->eeprom[EEP_OFS_MINOR_VER] >= 0x4)) {
282 calib_tx_iq = priv->eeprom[EEP_OFS_CALIB_TX_IQ];
283 calib_tx_dc = priv->eeprom[EEP_OFS_CALIB_TX_DC];
284 calib_rx_iq = priv->eeprom[EEP_OFS_CALIB_RX_IQ];
285 if (calib_tx_iq || calib_tx_dc || calib_rx_iq) {
286 /* CR255, enable TX/RX IQ and
287 * DC compensation mode
289 vnt_control_out_u8(priv,
290 MESSAGE_REQUEST_BBREG,
293 /* CR251, TX I/Q Imbalance Calibration */
294 vnt_control_out_u8(priv,
295 MESSAGE_REQUEST_BBREG,
298 /* CR252, TX DC-Offset Calibration */
299 vnt_control_out_u8(priv,
300 MESSAGE_REQUEST_BBREG,
303 /* CR253, RX I/Q Imbalance Calibration */
304 vnt_control_out_u8(priv,
305 MESSAGE_REQUEST_BBREG,
310 * BB Calibration compensation
312 vnt_control_out_u8(priv,
313 MESSAGE_REQUEST_BBREG,
320 /* get permanent network address */
321 memcpy(priv->permanent_net_addr, init_rsp->net_addr, 6);
322 ether_addr_copy(priv->current_net_addr, priv->permanent_net_addr);
324 /* if exist SW network address, use it */
325 dev_dbg(&priv->usb->dev, "Network address = %pM\n",
326 priv->current_net_addr);
329 * set BB and packet type at the same time
330 * set Short Slot Time, xIFS, and RSPINF
332 if (priv->bb_type == BB_TYPE_11A)
333 priv->short_slot_time = true;
335 priv->short_slot_time = false;
337 vnt_set_short_slot_time(priv);
339 priv->radio_ctl = priv->eeprom[EEP_OFS_RADIOCTL];
341 if ((priv->radio_ctl & EEP_RADIOCTL_ENABLE) != 0) {
342 status = vnt_control_in(priv, MESSAGE_TYPE_READ,
343 MAC_REG_GPIOCTL1, MESSAGE_REQUEST_MACREG, 1, &tmp);
345 if (status != STATUS_SUCCESS)
348 if ((tmp & GPIO3_DATA) == 0)
349 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1,
352 vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1,
356 vnt_mac_set_led(priv, LEDSTS_TMLEN, 0x38);
358 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
360 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, 0x01);
362 vnt_radio_power_on(priv);
364 dev_dbg(&priv->usb->dev, "<----INIbInitAdapter Exit\n");
369 static void vnt_free_tx_bufs(struct vnt_private *priv)
371 struct vnt_usb_send_context *tx_context;
374 for (ii = 0; ii < priv->num_tx_context; ii++) {
375 tx_context = priv->tx_context[ii];
376 /* deallocate URBs */
377 if (tx_context->urb) {
378 usb_kill_urb(tx_context->urb);
379 usb_free_urb(tx_context->urb);
386 static void vnt_free_rx_bufs(struct vnt_private *priv)
391 for (ii = 0; ii < priv->num_rcb; ii++) {
396 /* deallocate URBs */
398 usb_kill_urb(rcb->urb);
399 usb_free_urb(rcb->urb);
404 dev_kfree_skb(rcb->skb);
410 static void usb_device_reset(struct vnt_private *priv)
414 status = usb_reset_device(priv->usb);
416 dev_warn(&priv->usb->dev,
417 "usb_device_reset fail status=%d\n", status);
420 static void vnt_free_int_bufs(struct vnt_private *priv)
422 kfree(priv->int_buf.data_buf);
425 static bool vnt_alloc_bufs(struct vnt_private *priv)
427 struct vnt_usb_send_context *tx_context;
431 for (ii = 0; ii < priv->num_tx_context; ii++) {
432 tx_context = kmalloc(sizeof(struct vnt_usb_send_context),
437 priv->tx_context[ii] = tx_context;
438 tx_context->priv = priv;
439 tx_context->pkt_no = ii;
442 tx_context->urb = usb_alloc_urb(0, GFP_KERNEL);
443 if (!tx_context->urb)
446 tx_context->in_use = false;
449 for (ii = 0; ii < priv->num_rcb; ii++) {
450 priv->rcb[ii] = kzalloc(sizeof(struct vnt_rcb), GFP_KERNEL);
451 if (!priv->rcb[ii]) {
452 dev_err(&priv->usb->dev,
453 "failed to allocate rcb no %d\n", ii);
462 rcb->urb = usb_alloc_urb(0, GFP_KERNEL);
466 rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
473 if (vnt_submit_rx_urb(priv, rcb))
477 priv->interrupt_urb = usb_alloc_urb(0, GFP_KERNEL);
478 if (!priv->interrupt_urb)
481 priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
482 if (!priv->int_buf.data_buf) {
483 usb_free_urb(priv->interrupt_urb);
490 vnt_free_rx_bufs(priv);
493 vnt_free_tx_bufs(priv);
498 static void vnt_tx_80211(struct ieee80211_hw *hw,
499 struct ieee80211_tx_control *control, struct sk_buff *skb)
501 struct vnt_private *priv = hw->priv;
503 if (vnt_tx_packet(priv, skb))
504 ieee80211_free_txskb(hw, skb);
507 static int vnt_start(struct ieee80211_hw *hw)
509 struct vnt_private *priv = hw->priv;
511 priv->rx_buf_sz = MAX_TOTAL_SIZE_WITH_ALL_HEADERS;
513 if (!vnt_alloc_bufs(priv)) {
514 dev_dbg(&priv->usb->dev, "vnt_alloc_bufs fail...\n");
518 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
520 if (vnt_init_registers(priv) == false) {
521 dev_dbg(&priv->usb->dev, " init register fail\n");
525 if (vnt_key_init_table(priv))
528 priv->int_interval = 1; /* bInterval is set to 1 */
530 vnt_int_start_interrupt(priv);
532 ieee80211_wake_queues(hw);
537 vnt_free_rx_bufs(priv);
538 vnt_free_tx_bufs(priv);
539 vnt_free_int_bufs(priv);
541 usb_kill_urb(priv->interrupt_urb);
542 usb_free_urb(priv->interrupt_urb);
547 static void vnt_stop(struct ieee80211_hw *hw)
549 struct vnt_private *priv = hw->priv;
555 for (i = 0; i < MAX_KEY_TABLE; i++)
556 vnt_mac_disable_keyentry(priv, i);
559 priv->key_entry_inuse = 0;
561 if (!test_bit(DEVICE_FLAGS_UNPLUG, &priv->flags))
562 vnt_mac_shutdown(priv);
564 ieee80211_stop_queues(hw);
566 set_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
568 cancel_delayed_work_sync(&priv->run_command_work);
570 priv->cmd_running = false;
572 vnt_free_tx_bufs(priv);
573 vnt_free_rx_bufs(priv);
574 vnt_free_int_bufs(priv);
576 usb_kill_urb(priv->interrupt_urb);
577 usb_free_urb(priv->interrupt_urb);
580 static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
582 struct vnt_private *priv = hw->priv;
587 case NL80211_IFTYPE_STATION:
589 case NL80211_IFTYPE_ADHOC:
590 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
592 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
595 case NL80211_IFTYPE_AP:
596 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
598 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_AP);
605 priv->op_mode = vif->type;
607 vnt_set_bss_mode(priv);
609 /* LED blink on TX */
610 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_INTER);
615 static void vnt_remove_interface(struct ieee80211_hw *hw,
616 struct ieee80211_vif *vif)
618 struct vnt_private *priv = hw->priv;
621 case NL80211_IFTYPE_STATION:
623 case NL80211_IFTYPE_ADHOC:
624 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
625 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
626 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
628 case NL80211_IFTYPE_AP:
629 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
630 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
631 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_AP);
637 vnt_radio_power_off(priv);
639 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
642 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
645 static int vnt_config(struct ieee80211_hw *hw, u32 changed)
647 struct vnt_private *priv = hw->priv;
648 struct ieee80211_conf *conf = &hw->conf;
651 if (changed & IEEE80211_CONF_CHANGE_PS) {
652 if (conf->flags & IEEE80211_CONF_PS)
653 vnt_enable_power_saving(priv, conf->listen_interval);
655 vnt_disable_power_saving(priv);
658 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
659 (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
660 vnt_set_channel(priv, conf->chandef.chan->hw_value);
662 if (conf->chandef.chan->band == NL80211_BAND_5GHZ)
663 bb_type = BB_TYPE_11A;
665 bb_type = BB_TYPE_11G;
667 if (priv->bb_type != bb_type) {
668 priv->bb_type = bb_type;
670 vnt_set_bss_mode(priv);
674 if (changed & IEEE80211_CONF_CHANGE_POWER) {
675 if (priv->bb_type == BB_TYPE_11B)
676 priv->current_rate = RATE_1M;
678 priv->current_rate = RATE_54M;
680 vnt_rf_setpower(priv, priv->current_rate,
681 conf->chandef.chan->hw_value);
687 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
688 struct ieee80211_vif *vif, struct ieee80211_bss_conf *conf,
691 struct vnt_private *priv = hw->priv;
693 priv->current_aid = conf->aid;
695 if (changed & BSS_CHANGED_BSSID && conf->bssid)
696 vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);
699 if (changed & BSS_CHANGED_BASIC_RATES) {
700 priv->basic_rates = conf->basic_rates;
702 vnt_update_top_rates(priv);
704 dev_dbg(&priv->usb->dev, "basic rates %x\n", conf->basic_rates);
707 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
708 if (conf->use_short_preamble) {
709 vnt_mac_enable_barker_preamble_mode(priv);
710 priv->preamble_type = true;
712 vnt_mac_disable_barker_preamble_mode(priv);
713 priv->preamble_type = false;
717 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
718 if (conf->use_cts_prot)
719 vnt_mac_enable_protect_mode(priv);
721 vnt_mac_disable_protect_mode(priv);
724 if (changed & BSS_CHANGED_ERP_SLOT) {
725 if (conf->use_short_slot)
726 priv->short_slot_time = true;
728 priv->short_slot_time = false;
730 vnt_set_short_slot_time(priv);
731 vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
732 vnt_update_pre_ed_threshold(priv, false);
735 if (changed & BSS_CHANGED_TXPOWER)
736 vnt_rf_setpower(priv, priv->current_rate,
737 conf->chandef.chan->hw_value);
739 if (changed & BSS_CHANGED_BEACON_ENABLED) {
740 dev_dbg(&priv->usb->dev,
741 "Beacon enable %d\n", conf->enable_beacon);
743 if (conf->enable_beacon) {
744 vnt_beacon_enable(priv, vif, conf);
746 vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
748 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
752 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INFO) &&
753 priv->op_mode != NL80211_IFTYPE_AP) {
754 if (conf->assoc && conf->beacon_rate) {
755 vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL,
758 vnt_mac_set_beacon_interval(priv, conf->beacon_int);
760 vnt_reset_next_tbtt(priv, conf->beacon_int);
762 vnt_adjust_tsf(priv, conf->beacon_rate->hw_value,
763 conf->sync_tsf, priv->current_tsf);
765 vnt_update_next_tbtt(priv,
766 conf->sync_tsf, conf->beacon_int);
768 vnt_clear_current_tsf(priv);
770 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL,
776 static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
777 struct netdev_hw_addr_list *mc_list)
779 struct vnt_private *priv = hw->priv;
780 struct netdev_hw_addr *ha;
784 netdev_hw_addr_list_for_each(ha, mc_list) {
785 bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
787 mc_filter |= 1ULL << (bit_nr & 0x3f);
790 priv->mc_list_count = mc_list->count;
795 static void vnt_configure(struct ieee80211_hw *hw,
796 unsigned int changed_flags, unsigned int *total_flags, u64 multicast)
798 struct vnt_private *priv = hw->priv;
802 *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC;
804 rc = vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_RCR,
805 MESSAGE_REQUEST_MACREG, sizeof(u8), &rx_mode);
808 rx_mode = RCR_MULTICAST | RCR_BROADCAST;
810 dev_dbg(&priv->usb->dev, "rx mode in = %x\n", rx_mode);
812 if (changed_flags & FIF_ALLMULTI) {
813 if (*total_flags & FIF_ALLMULTI) {
814 if (priv->mc_list_count > 2)
815 vnt_mac_set_filter(priv, ~0);
817 vnt_mac_set_filter(priv, multicast);
819 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
821 rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
826 if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
827 if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
828 rx_mode &= ~RCR_BSSID;
830 rx_mode |= RCR_BSSID;
833 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_RCR, rx_mode);
835 dev_dbg(&priv->usb->dev, "rx mode out= %x\n", rx_mode);
838 static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
839 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
840 struct ieee80211_key_conf *key)
842 struct vnt_private *priv = hw->priv;
846 if (vnt_set_keys(hw, sta, vif, key))
850 if (test_bit(key->hw_key_idx, &priv->key_entry_inuse))
851 clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
859 static void vnt_sw_scan_start(struct ieee80211_hw *hw,
860 struct ieee80211_vif *vif,
863 struct vnt_private *priv = hw->priv;
865 vnt_set_bss_mode(priv);
866 /* Set max sensitivity*/
867 vnt_update_pre_ed_threshold(priv, true);
870 static void vnt_sw_scan_complete(struct ieee80211_hw *hw,
871 struct ieee80211_vif *vif)
873 struct vnt_private *priv = hw->priv;
875 /* Return sensitivity to channel level*/
876 vnt_update_pre_ed_threshold(priv, false);
879 static int vnt_get_stats(struct ieee80211_hw *hw,
880 struct ieee80211_low_level_stats *stats)
882 struct vnt_private *priv = hw->priv;
884 memcpy(stats, &priv->low_stats, sizeof(*stats));
889 static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
891 struct vnt_private *priv = hw->priv;
893 return priv->current_tsf;
896 static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
899 struct vnt_private *priv = hw->priv;
901 vnt_update_next_tbtt(priv, tsf, vif->bss_conf.beacon_int);
904 static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
906 struct vnt_private *priv = hw->priv;
908 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
910 vnt_clear_current_tsf(priv);
913 static const struct ieee80211_ops vnt_mac_ops = {
917 .add_interface = vnt_add_interface,
918 .remove_interface = vnt_remove_interface,
919 .config = vnt_config,
920 .bss_info_changed = vnt_bss_info_changed,
921 .prepare_multicast = vnt_prepare_multicast,
922 .configure_filter = vnt_configure,
923 .set_key = vnt_set_key,
924 .sw_scan_start = vnt_sw_scan_start,
925 .sw_scan_complete = vnt_sw_scan_complete,
926 .get_stats = vnt_get_stats,
927 .get_tsf = vnt_get_tsf,
928 .set_tsf = vnt_set_tsf,
929 .reset_tsf = vnt_reset_tsf,
932 int vnt_init(struct vnt_private *priv)
935 if (!(vnt_init_registers(priv)))
938 SET_IEEE80211_PERM_ADDR(priv->hw, priv->permanent_net_addr);
940 vnt_init_bands(priv);
942 if (ieee80211_register_hw(priv->hw))
947 vnt_radio_power_off(priv);
953 vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
955 struct usb_device *udev;
956 struct vnt_private *priv;
957 struct ieee80211_hw *hw;
961 udev = usb_get_dev(interface_to_usbdev(intf));
963 dev_notice(&udev->dev, "%s Ver. %s\n",
964 DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
965 dev_notice(&udev->dev,
966 "Copyright (c) 2004 VIA Networking Technologies, Inc.\n");
968 hw = ieee80211_alloc_hw(sizeof(struct vnt_private), &vnt_mac_ops);
970 dev_err(&udev->dev, "could not register ieee80211_hw\n");
980 vnt_set_options(priv);
982 spin_lock_init(&priv->lock);
983 mutex_init(&priv->usb_lock);
985 INIT_DELAYED_WORK(&priv->run_command_work, vnt_run_command);
987 usb_set_intfdata(intf, priv);
989 wiphy = priv->hw->wiphy;
991 wiphy->frag_threshold = FRAG_THRESH_DEF;
992 wiphy->rts_threshold = RTS_THRESH_DEF;
993 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
994 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
996 ieee80211_hw_set(priv->hw, TIMING_BEACON_ONLY);
997 ieee80211_hw_set(priv->hw, SIGNAL_DBM);
998 ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
999 ieee80211_hw_set(priv->hw, REPORTS_TX_ACK_STATUS);
1000 ieee80211_hw_set(priv->hw, SUPPORTS_PS);
1001 ieee80211_hw_set(priv->hw, PS_NULLFUNC_STACK);
1003 priv->hw->max_signal = 100;
1005 SET_IEEE80211_DEV(priv->hw, &intf->dev);
1007 usb_device_reset(priv);
1009 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
1010 vnt_reset_command_timer(priv);
1012 vnt_schedule_command(priv, WLAN_CMD_INIT_MAC80211);
1022 static void vt6656_disconnect(struct usb_interface *intf)
1024 struct vnt_private *priv = usb_get_intfdata(intf);
1030 ieee80211_unregister_hw(priv->hw);
1032 usb_set_intfdata(intf, NULL);
1033 usb_put_dev(interface_to_usbdev(intf));
1035 set_bit(DEVICE_FLAGS_UNPLUG, &priv->flags);
1037 ieee80211_free_hw(priv->hw);
1042 static int vt6656_suspend(struct usb_interface *intf, pm_message_t message)
1047 static int vt6656_resume(struct usb_interface *intf)
1052 #endif /* CONFIG_PM */
1054 MODULE_DEVICE_TABLE(usb, vt6656_table);
1056 static struct usb_driver vt6656_driver = {
1057 .name = DEVICE_NAME,
1058 .probe = vt6656_probe,
1059 .disconnect = vt6656_disconnect,
1060 .id_table = vt6656_table,
1062 .suspend = vt6656_suspend,
1063 .resume = vt6656_resume,
1064 #endif /* CONFIG_PM */
1067 module_usb_driver(vt6656_driver);