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.
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.
21 * Purpose: driver entry for initial, open, close, tx and rx.
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.
37 #include <linux/etherdevice.h>
38 #include <linux/file.h>
54 * define module options
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);
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");
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");
74 #define RTS_THRESH_DEF 2347
75 #define FRAG_THRESH_DEF 2346
76 #define SHORT_RETRY_DEF 8
77 #define LONG_RETRY_DEF 4
79 /* BasebandType[] baseband type selected
80 0: indicate 802.11a type
81 1: indicate 802.11b type
82 2: indicate 802.11g type
85 #define BBP_TYPE_DEF 2
88 * Static vars definitions
91 static struct usb_device_id vt6656_table[] = {
92 {USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
96 static void vnt_set_options(struct vnt_private *priv)
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;
102 priv->num_tx_context = vnt_tx_buffers;
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;
108 priv->num_rcb = vnt_rx_buffers;
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;
121 * initialization of MAC & BBP registers
123 static int vnt_init_registers(struct vnt_private *priv)
125 struct vnt_cmd_card_init *init_cmd = &priv->init_command;
126 struct vnt_rsp_card_init *init_rsp = &priv->init_response;
129 int status = STATUS_SUCCESS;
131 u8 calib_tx_iq = 0, calib_tx_dc = 0, calib_rx_iq = 0;
133 dev_dbg(&priv->usb->dev, "---->INIbInitAdapter. [%d][%d]\n",
134 DEVICE_INIT_COLD, priv->packet_type);
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");
144 dev_dbg(&priv->usb->dev, "FIRMWAREbDownload fail\n");
149 if (!vnt_vt3184_init(priv)) {
150 dev_dbg(&priv->usb->dev, "vnt_vt3184_init fail\n");
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;
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");
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");
178 /* local ID for AES functions */
179 status = vnt_control_in(priv, MESSAGE_TYPE_READ,
180 MAC_REG_LOCALID, MESSAGE_REQUEST_MACREG, 1,
182 if (status != STATUS_SUCCESS)
185 /* do MACbSoftwareReset in MACvInitialize */
187 priv->top_ofdm_basic_rate = RATE_24M;
188 priv->top_cck_basic_rate = RATE_1M;
190 /* target to IF pin while programming to RF chip */
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;
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;
209 * original zonetype is USA, but custom zonetype is Europe,
210 * then need to recover 12, 13, 14 channels with 11 channel
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];
217 priv->ofdm_pwr_a = 0x34; /* same as RFbMA2829SelectChannel */
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];
224 if (priv->ofdm_a_pwr_tbl[ii] == 0)
225 priv->ofdm_a_pwr_tbl[ii] = priv->ofdm_pwr_a;
228 antenna = priv->eeprom[EEP_OFS_ANTENNA];
230 if (antenna & EEP_ANTINV)
231 priv->tx_rx_ant_inv = true;
233 priv->tx_rx_ant_inv = false;
235 antenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
237 if (antenna == 0) /* if not set default is both */
238 antenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
240 if (antenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
241 priv->tx_antenna_mode = ANT_B;
242 priv->rx_antenna_sel = 1;
244 if (priv->tx_rx_ant_inv == true)
245 priv->rx_antenna_mode = ANT_A;
247 priv->rx_antenna_mode = ANT_B;
249 priv->rx_antenna_sel = 0;
251 if (antenna & EEP_ANTENNA_AUX) {
252 priv->tx_antenna_mode = ANT_A;
254 if (priv->tx_rx_ant_inv == true)
255 priv->rx_antenna_mode = ANT_B;
257 priv->rx_antenna_mode = ANT_A;
259 priv->tx_antenna_mode = ANT_B;
261 if (priv->tx_rx_ant_inv == true)
262 priv->rx_antenna_mode = ANT_A;
264 priv->rx_antenna_mode = ANT_B;
268 /* Set initial antenna mode */
269 vnt_set_antenna_mode(priv, priv->rx_antenna_mode);
271 /* get Auto Fall Back type */
272 priv->auto_fb_ctrl = AUTO_FB_0;
274 /* default Auto Mode */
275 priv->bb_type = BB_TYPE_11G;
278 priv->rf_type = init_rsp->rf_type;
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)) {
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,
295 /* CR251, TX I/Q Imbalance Calibration */
296 vnt_control_out_u8(priv,
297 MESSAGE_REQUEST_BBREG,
300 /* CR252, TX DC-Offset Calibration */
301 vnt_control_out_u8(priv,
302 MESSAGE_REQUEST_BBREG,
305 /* CR253, RX I/Q Imbalance Calibration */
306 vnt_control_out_u8(priv,
307 MESSAGE_REQUEST_BBREG,
312 BB Calibration compensation */
313 vnt_control_out_u8(priv,
314 MESSAGE_REQUEST_BBREG,
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);
325 /* if exist SW network address, use it */
326 dev_dbg(&priv->usb->dev, "Network address = %pM\n",
327 priv->current_net_addr);
330 * set BB and packet type at the same time
331 * set Short Slot Time, xIFS, and RSPINF
333 if (priv->bb_type == BB_TYPE_11A)
334 priv->short_slot_time = true;
336 priv->short_slot_time = false;
338 vnt_set_short_slot_time(priv);
340 priv->radio_ctl = priv->eeprom[EEP_OFS_RADIOCTL];
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);
346 if (status != STATUS_SUCCESS)
349 if ((tmp & GPIO3_DATA) == 0)
350 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1,
353 vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1,
357 vnt_mac_set_led(priv, LEDSTS_TMLEN, 0x38);
359 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
361 vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, 0x01);
363 vnt_radio_power_on(priv);
365 dev_dbg(&priv->usb->dev, "<----INIbInitAdapter Exit\n");
370 static void vnt_free_tx_bufs(struct vnt_private *priv)
372 struct vnt_usb_send_context *tx_context;
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);
387 static void vnt_free_rx_bufs(struct vnt_private *priv)
392 for (ii = 0; ii < priv->num_rcb; ii++) {
397 /* deallocate URBs */
399 usb_kill_urb(rcb->urb);
400 usb_free_urb(rcb->urb);
405 dev_kfree_skb(rcb->skb);
411 static void usb_device_reset(struct vnt_private *priv)
415 status = usb_reset_device(priv->usb);
417 dev_warn(&priv->usb->dev,
418 "usb_device_reset fail status=%d\n", status);
421 static void vnt_free_int_bufs(struct vnt_private *priv)
423 kfree(priv->int_buf.data_buf);
426 static bool vnt_alloc_bufs(struct vnt_private *priv)
428 struct vnt_usb_send_context *tx_context;
432 for (ii = 0; ii < priv->num_tx_context; ii++) {
433 tx_context = kmalloc(sizeof(struct vnt_usb_send_context),
435 if (tx_context == NULL)
438 priv->tx_context[ii] = tx_context;
439 tx_context->priv = priv;
440 tx_context->pkt_no = ii;
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");
449 tx_context->in_use = false;
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);
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");
471 rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
472 if (rcb->skb == NULL)
478 if (vnt_submit_rx_urb(priv, rcb))
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");
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);
497 vnt_free_rx_bufs(priv);
500 vnt_free_tx_bufs(priv);
505 static void vnt_tx_80211(struct ieee80211_hw *hw,
506 struct ieee80211_tx_control *control, struct sk_buff *skb)
508 struct vnt_private *priv = hw->priv;
510 if (vnt_tx_packet(priv, skb))
511 ieee80211_free_txskb(hw, skb);
514 static int vnt_start(struct ieee80211_hw *hw)
516 struct vnt_private *priv = hw->priv;
518 priv->rx_buf_sz = MAX_TOTAL_SIZE_WITH_ALL_HEADERS;
520 if (!vnt_alloc_bufs(priv)) {
521 dev_dbg(&priv->usb->dev, "vnt_alloc_bufs fail...\n");
525 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
527 if (vnt_init_registers(priv) == false) {
528 dev_dbg(&priv->usb->dev, " init register fail\n");
532 priv->int_interval = 1; /* bInterval is set to 1 */
534 vnt_int_start_interrupt(priv);
536 ieee80211_wake_queues(hw);
541 vnt_free_rx_bufs(priv);
542 vnt_free_tx_bufs(priv);
543 vnt_free_int_bufs(priv);
545 usb_kill_urb(priv->interrupt_urb);
546 usb_free_urb(priv->interrupt_urb);
551 static void vnt_stop(struct ieee80211_hw *hw)
553 struct vnt_private *priv = hw->priv;
559 for (i = 0; i < MAX_KEY_TABLE; i++)
560 vnt_mac_disable_keyentry(priv, i);
563 priv->key_entry_inuse = 0;
565 if (!test_bit(DEVICE_FLAGS_UNPLUG, &priv->flags))
566 vnt_mac_shutdown(priv);
568 ieee80211_stop_queues(hw);
570 set_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
572 cancel_delayed_work_sync(&priv->run_command_work);
574 priv->cmd_running = false;
576 vnt_free_tx_bufs(priv);
577 vnt_free_rx_bufs(priv);
578 vnt_free_int_bufs(priv);
580 usb_kill_urb(priv->interrupt_urb);
581 usb_free_urb(priv->interrupt_urb);
584 static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
586 struct vnt_private *priv = hw->priv;
591 case NL80211_IFTYPE_STATION:
593 case NL80211_IFTYPE_ADHOC:
594 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
596 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
599 case NL80211_IFTYPE_AP:
600 vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
602 vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_AP);
609 priv->op_mode = vif->type;
611 vnt_set_bss_mode(priv);
613 /* LED blink on TX */
614 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_INTER);
619 static void vnt_remove_interface(struct ieee80211_hw *hw,
620 struct ieee80211_vif *vif)
622 struct vnt_private *priv = hw->priv;
625 case NL80211_IFTYPE_STATION:
627 case NL80211_IFTYPE_ADHOC:
628 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
629 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
630 vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
632 case NL80211_IFTYPE_AP:
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_AP);
641 vnt_radio_power_off(priv);
643 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
646 vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
649 static int vnt_config(struct ieee80211_hw *hw, u32 changed)
651 struct vnt_private *priv = hw->priv;
652 struct ieee80211_conf *conf = &hw->conf;
655 if (changed & IEEE80211_CONF_CHANGE_PS) {
656 if (conf->flags & IEEE80211_CONF_PS)
657 vnt_enable_power_saving(priv, conf->listen_interval);
659 vnt_disable_power_saving(priv);
662 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
663 (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
664 vnt_set_channel(priv, conf->chandef.chan->hw_value);
666 if (conf->chandef.chan->band == IEEE80211_BAND_5GHZ)
667 bb_type = BB_TYPE_11A;
669 bb_type = BB_TYPE_11G;
671 if (priv->bb_type != bb_type) {
672 priv->bb_type = bb_type;
674 vnt_set_bss_mode(priv);
678 if (changed & IEEE80211_CONF_CHANGE_POWER) {
679 if (priv->bb_type == BB_TYPE_11B)
680 priv->current_rate = RATE_1M;
682 priv->current_rate = RATE_54M;
684 vnt_rf_setpower(priv, priv->current_rate,
685 conf->chandef.chan->hw_value);
691 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
692 struct ieee80211_vif *vif, struct ieee80211_bss_conf *conf,
695 struct vnt_private *priv = hw->priv;
697 priv->current_aid = conf->aid;
699 if (changed & BSS_CHANGED_BSSID && conf->bssid)
700 vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);
703 if (changed & BSS_CHANGED_BASIC_RATES) {
704 priv->basic_rates = conf->basic_rates;
706 vnt_update_top_rates(priv);
708 dev_dbg(&priv->usb->dev, "basic rates %x\n", conf->basic_rates);
711 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
712 if (conf->use_short_preamble) {
713 vnt_mac_enable_barker_preamble_mode(priv);
714 priv->preamble_type = true;
716 vnt_mac_disable_barker_preamble_mode(priv);
717 priv->preamble_type = false;
721 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
722 if (conf->use_cts_prot)
723 vnt_mac_enable_protect_mode(priv);
725 vnt_mac_disable_protect_mode(priv);
728 if (changed & BSS_CHANGED_ERP_SLOT) {
729 if (conf->use_short_slot)
730 priv->short_slot_time = true;
732 priv->short_slot_time = false;
734 vnt_set_short_slot_time(priv);
735 vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
736 vnt_update_pre_ed_threshold(priv, false);
739 if (changed & BSS_CHANGED_TXPOWER)
740 vnt_rf_setpower(priv, priv->current_rate,
741 conf->chandef.chan->hw_value);
743 if (changed & BSS_CHANGED_BEACON_ENABLED) {
744 dev_dbg(&priv->usb->dev,
745 "Beacon enable %d\n", conf->enable_beacon);
747 if (conf->enable_beacon) {
748 vnt_beacon_enable(priv, vif, conf);
750 vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
752 vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
756 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INFO) &&
757 priv->op_mode != NL80211_IFTYPE_AP) {
758 if (conf->assoc && conf->beacon_rate) {
759 vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL,
762 vnt_adjust_tsf(priv, conf->beacon_rate->hw_value,
763 conf->sync_tsf, priv->current_tsf);
765 vnt_mac_set_beacon_interval(priv, conf->beacon_int);
767 vnt_reset_next_tbtt(priv, conf->beacon_int);
769 vnt_clear_current_tsf(priv);
771 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL,
777 static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
778 struct netdev_hw_addr_list *mc_list)
780 struct vnt_private *priv = hw->priv;
781 struct netdev_hw_addr *ha;
785 netdev_hw_addr_list_for_each(ha, mc_list) {
786 bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
788 mc_filter |= 1ULL << (bit_nr & 0x3f);
791 priv->mc_list_count = mc_list->count;
796 static void vnt_configure(struct ieee80211_hw *hw,
797 unsigned int changed_flags, unsigned int *total_flags, u64 multicast)
799 struct vnt_private *priv = hw->priv;
803 *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC;
805 rc = vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_RCR,
806 MESSAGE_REQUEST_MACREG, sizeof(u8), &rx_mode);
809 rx_mode = RCR_MULTICAST | RCR_BROADCAST;
811 dev_dbg(&priv->usb->dev, "rx mode in = %x\n", rx_mode);
813 if (changed_flags & FIF_ALLMULTI) {
814 if (*total_flags & FIF_ALLMULTI) {
815 if (priv->mc_list_count > 2)
816 vnt_mac_set_filter(priv, ~0);
818 vnt_mac_set_filter(priv, multicast);
820 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
822 rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
827 if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
828 if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
829 rx_mode &= ~RCR_BSSID;
831 rx_mode |= RCR_BSSID;
834 vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_RCR, rx_mode);
836 dev_dbg(&priv->usb->dev, "rx mode out= %x\n", rx_mode);
839 static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
840 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
841 struct ieee80211_key_conf *key)
843 struct vnt_private *priv = hw->priv;
847 if (vnt_set_keys(hw, sta, vif, key))
851 if (test_bit(key->hw_key_idx, &priv->key_entry_inuse))
852 clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
860 static void vnt_sw_scan_start(struct ieee80211_hw *hw,
861 struct ieee80211_vif *vif,
864 struct vnt_private *priv = hw->priv;
866 vnt_set_bss_mode(priv);
867 /* Set max sensitivity*/
868 vnt_update_pre_ed_threshold(priv, true);
871 static void vnt_sw_scan_complete(struct ieee80211_hw *hw,
872 struct ieee80211_vif *vif)
874 struct vnt_private *priv = hw->priv;
876 /* Return sensitivity to channel level*/
877 vnt_update_pre_ed_threshold(priv, false);
880 static int vnt_get_stats(struct ieee80211_hw *hw,
881 struct ieee80211_low_level_stats *stats)
883 struct vnt_private *priv = hw->priv;
885 memcpy(stats, &priv->low_stats, sizeof(*stats));
890 static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
892 struct vnt_private *priv = hw->priv;
894 return priv->current_tsf;
897 static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
900 struct vnt_private *priv = hw->priv;
902 vnt_update_next_tbtt(priv, tsf, vif->bss_conf.beacon_int);
905 static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
907 struct vnt_private *priv = hw->priv;
909 vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
911 vnt_clear_current_tsf(priv);
914 static const struct ieee80211_ops vnt_mac_ops = {
918 .add_interface = vnt_add_interface,
919 .remove_interface = vnt_remove_interface,
920 .config = vnt_config,
921 .bss_info_changed = vnt_bss_info_changed,
922 .prepare_multicast = vnt_prepare_multicast,
923 .configure_filter = vnt_configure,
924 .set_key = vnt_set_key,
925 .sw_scan_start = vnt_sw_scan_start,
926 .sw_scan_complete = vnt_sw_scan_complete,
927 .get_stats = vnt_get_stats,
928 .get_tsf = vnt_get_tsf,
929 .set_tsf = vnt_set_tsf,
930 .reset_tsf = vnt_reset_tsf,
933 int vnt_init(struct vnt_private *priv)
936 if (!(vnt_init_registers(priv)))
939 SET_IEEE80211_PERM_ADDR(priv->hw, priv->permanent_net_addr);
941 vnt_init_bands(priv);
943 if (ieee80211_register_hw(priv->hw))
948 vnt_radio_power_off(priv);
954 vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
956 struct usb_device *udev;
957 struct vnt_private *priv;
958 struct ieee80211_hw *hw;
962 udev = usb_get_dev(interface_to_usbdev(intf));
964 dev_notice(&udev->dev, "%s Ver. %s\n",
965 DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
966 dev_notice(&udev->dev,
967 "Copyright (c) 2004 VIA Networking Technologies, Inc.\n");
969 hw = ieee80211_alloc_hw(sizeof(struct vnt_private), &vnt_mac_ops);
971 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);
1002 priv->hw->max_signal = 100;
1004 SET_IEEE80211_DEV(priv->hw, &intf->dev);
1006 usb_device_reset(priv);
1008 clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
1009 vnt_reset_command_timer(priv);
1011 vnt_schedule_command(priv, WLAN_CMD_INIT_MAC80211);
1021 static void vt6656_disconnect(struct usb_interface *intf)
1023 struct vnt_private *priv = usb_get_intfdata(intf);
1029 ieee80211_unregister_hw(priv->hw);
1031 usb_set_intfdata(intf, NULL);
1032 usb_put_dev(interface_to_usbdev(intf));
1034 set_bit(DEVICE_FLAGS_UNPLUG, &priv->flags);
1036 ieee80211_free_hw(priv->hw);
1041 static int vt6656_suspend(struct usb_interface *intf, pm_message_t message)
1046 static int vt6656_resume(struct usb_interface *intf)
1051 #endif /* CONFIG_PM */
1053 MODULE_DEVICE_TABLE(usb, vt6656_table);
1055 static struct usb_driver vt6656_driver = {
1056 .name = DEVICE_NAME,
1057 .probe = vt6656_probe,
1058 .disconnect = vt6656_disconnect,
1059 .id_table = vt6656_table,
1061 .suspend = vt6656_suspend,
1062 .resume = vt6656_resume,
1063 #endif /* CONFIG_PM */
1066 module_usb_driver(vt6656_driver);