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- /*
- * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * File: main_usb.c
- *
- * Purpose: driver entry for initial, open, close, tx and rx.
- *
- * Author: Lyndon Chen
- *
- * Date: Dec 8, 2005
- *
- * Functions:
- *
- * vt6656_probe - module initial (insmod) driver entry
- * vnt_free_tx_bufs - free tx buffer function
- * vnt_init_registers- initial MAC & BBP & RF internal registers.
- *
- * Revision History:
- */
- #undef __NO_VERSION__
- #include <linux/etherdevice.h>
- #include <linux/file.h>
- #include "device.h"
- #include "card.h"
- #include "baseband.h"
- #include "mac.h"
- #include "power.h"
- #include "wcmd.h"
- #include "rxtx.h"
- #include "dpc.h"
- #include "rf.h"
- #include "firmware.h"
- #include "usbpipe.h"
- #include "channel.h"
- #include "int.h"
- /*
- * define module options
- */
- /* version information */
- #define DRIVER_AUTHOR \
- "VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>"
- MODULE_AUTHOR(DRIVER_AUTHOR);
- MODULE_LICENSE("GPL");
- MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
- #define RX_DESC_DEF0 64
- static int vnt_rx_buffers = RX_DESC_DEF0;
- module_param_named(rx_buffers, vnt_rx_buffers, int, 0644);
- MODULE_PARM_DESC(rx_buffers, "Number of receive usb rx buffers");
- #define TX_DESC_DEF0 64
- static int vnt_tx_buffers = TX_DESC_DEF0;
- module_param_named(tx_buffers, vnt_tx_buffers, int, 0644);
- MODULE_PARM_DESC(tx_buffers, "Number of receive usb tx buffers");
- #define RTS_THRESH_DEF 2347
- #define FRAG_THRESH_DEF 2346
- #define SHORT_RETRY_DEF 8
- #define LONG_RETRY_DEF 4
- /* BasebandType[] baseband type selected
- 0: indicate 802.11a type
- 1: indicate 802.11b type
- 2: indicate 802.11g type
- */
- #define BBP_TYPE_DEF 2
- /*
- * Static vars definitions
- */
- static struct usb_device_id vt6656_table[] = {
- {USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
- {}
- };
- static void vnt_set_options(struct vnt_private *priv)
- {
- /* Set number of TX buffers */
- if (vnt_tx_buffers < CB_MIN_TX_DESC || vnt_tx_buffers > CB_MAX_TX_DESC)
- priv->num_tx_context = TX_DESC_DEF0;
- else
- priv->num_tx_context = vnt_tx_buffers;
- /* Set number of RX buffers */
- if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)
- priv->num_rcb = RX_DESC_DEF0;
- else
- priv->num_rcb = vnt_rx_buffers;
- priv->short_retry_limit = SHORT_RETRY_DEF;
- priv->long_retry_limit = LONG_RETRY_DEF;
- priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
- priv->bb_type = BBP_TYPE_DEF;
- priv->packet_type = priv->bb_type;
- priv->auto_fb_ctrl = AUTO_FB_0;
- priv->preamble_type = 0;
- priv->exist_sw_net_addr = false;
- }
- /*
- * initialization of MAC & BBP registers
- */
- static int vnt_init_registers(struct vnt_private *priv)
- {
- struct vnt_cmd_card_init *init_cmd = &priv->init_command;
- struct vnt_rsp_card_init *init_rsp = &priv->init_response;
- u8 antenna;
- int ii;
- int status = STATUS_SUCCESS;
- u8 tmp;
- u8 calib_tx_iq = 0, calib_tx_dc = 0, calib_rx_iq = 0;
- dev_dbg(&priv->usb->dev, "---->INIbInitAdapter. [%d][%d]\n",
- DEVICE_INIT_COLD, priv->packet_type);
- if (!vnt_check_firmware_version(priv)) {
- if (vnt_download_firmware(priv) == true) {
- if (vnt_firmware_branch_to_sram(priv) == false) {
- dev_dbg(&priv->usb->dev,
- " vnt_firmware_branch_to_sram fail\n");
- return false;
- }
- } else {
- dev_dbg(&priv->usb->dev, "FIRMWAREbDownload fail\n");
- return false;
- }
- }
- if (!vnt_vt3184_init(priv)) {
- dev_dbg(&priv->usb->dev, "vnt_vt3184_init fail\n");
- return false;
- }
- init_cmd->init_class = DEVICE_INIT_COLD;
- init_cmd->exist_sw_net_addr = priv->exist_sw_net_addr;
- for (ii = 0; ii < 6; ii++)
- init_cmd->sw_net_addr[ii] = priv->current_net_addr[ii];
- init_cmd->short_retry_limit = priv->short_retry_limit;
- init_cmd->long_retry_limit = priv->long_retry_limit;
- /* issue card_init command to device */
- status = vnt_control_out(priv,
- MESSAGE_TYPE_CARDINIT, 0, 0,
- sizeof(struct vnt_cmd_card_init), (u8 *)init_cmd);
- if (status != STATUS_SUCCESS) {
- dev_dbg(&priv->usb->dev, "Issue Card init fail\n");
- return false;
- }
- status = vnt_control_in(priv, MESSAGE_TYPE_INIT_RSP, 0, 0,
- sizeof(struct vnt_rsp_card_init), (u8 *)init_rsp);
- if (status != STATUS_SUCCESS) {
- dev_dbg(&priv->usb->dev,
- "Cardinit request in status fail!\n");
- return false;
- }
- /* local ID for AES functions */
- status = vnt_control_in(priv, MESSAGE_TYPE_READ,
- MAC_REG_LOCALID, MESSAGE_REQUEST_MACREG, 1,
- &priv->local_id);
- if (status != STATUS_SUCCESS)
- return false;
- /* do MACbSoftwareReset in MACvInitialize */
- priv->top_ofdm_basic_rate = RATE_24M;
- priv->top_cck_basic_rate = RATE_1M;
- /* target to IF pin while programming to RF chip */
- priv->power = 0xFF;
- priv->cck_pwr = priv->eeprom[EEP_OFS_PWR_CCK];
- priv->ofdm_pwr_g = priv->eeprom[EEP_OFS_PWR_OFDMG];
- /* load power table */
- for (ii = 0; ii < 14; ii++) {
- priv->cck_pwr_tbl[ii] =
- priv->eeprom[ii + EEP_OFS_CCK_PWR_TBL];
- if (priv->cck_pwr_tbl[ii] == 0)
- priv->cck_pwr_tbl[ii] = priv->cck_pwr;
- priv->ofdm_pwr_tbl[ii] =
- priv->eeprom[ii + EEP_OFS_OFDM_PWR_TBL];
- if (priv->ofdm_pwr_tbl[ii] == 0)
- priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_g;
- }
- /*
- * original zonetype is USA, but custom zonetype is Europe,
- * then need to recover 12, 13, 14 channels with 11 channel
- */
- for (ii = 11; ii < 14; ii++) {
- priv->cck_pwr_tbl[ii] = priv->cck_pwr_tbl[10];
- priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_tbl[10];
- }
- priv->ofdm_pwr_a = 0x34; /* same as RFbMA2829SelectChannel */
- /* load OFDM A power table */
- for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
- priv->ofdm_a_pwr_tbl[ii] =
- priv->eeprom[ii + EEP_OFS_OFDMA_PWR_TBL];
- if (priv->ofdm_a_pwr_tbl[ii] == 0)
- priv->ofdm_a_pwr_tbl[ii] = priv->ofdm_pwr_a;
- }
- antenna = priv->eeprom[EEP_OFS_ANTENNA];
- if (antenna & EEP_ANTINV)
- priv->tx_rx_ant_inv = true;
- else
- priv->tx_rx_ant_inv = false;
- antenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
- if (antenna == 0) /* if not set default is both */
- antenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
- if (antenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
- priv->tx_antenna_mode = ANT_B;
- priv->rx_antenna_sel = 1;
- if (priv->tx_rx_ant_inv == true)
- priv->rx_antenna_mode = ANT_A;
- else
- priv->rx_antenna_mode = ANT_B;
- } else {
- priv->rx_antenna_sel = 0;
- if (antenna & EEP_ANTENNA_AUX) {
- priv->tx_antenna_mode = ANT_A;
- if (priv->tx_rx_ant_inv == true)
- priv->rx_antenna_mode = ANT_B;
- else
- priv->rx_antenna_mode = ANT_A;
- } else {
- priv->tx_antenna_mode = ANT_B;
- if (priv->tx_rx_ant_inv == true)
- priv->rx_antenna_mode = ANT_A;
- else
- priv->rx_antenna_mode = ANT_B;
- }
- }
- /* Set initial antenna mode */
- vnt_set_antenna_mode(priv, priv->rx_antenna_mode);
- /* get Auto Fall Back type */
- priv->auto_fb_ctrl = AUTO_FB_0;
- /* default Auto Mode */
- priv->bb_type = BB_TYPE_11G;
- /* get RFType */
- priv->rf_type = init_rsp->rf_type;
- /* load vt3266 calibration parameters in EEPROM */
- if (priv->rf_type == RF_VT3226D0) {
- if ((priv->eeprom[EEP_OFS_MAJOR_VER] == 0x1) &&
- (priv->eeprom[EEP_OFS_MINOR_VER] >= 0x4)) {
- calib_tx_iq = priv->eeprom[EEP_OFS_CALIB_TX_IQ];
- calib_tx_dc = priv->eeprom[EEP_OFS_CALIB_TX_DC];
- calib_rx_iq = priv->eeprom[EEP_OFS_CALIB_RX_IQ];
- if (calib_tx_iq || calib_tx_dc || calib_rx_iq) {
- /* CR255, enable TX/RX IQ and
- DC compensation mode */
- vnt_control_out_u8(priv,
- MESSAGE_REQUEST_BBREG,
- 0xff,
- 0x03);
- /* CR251, TX I/Q Imbalance Calibration */
- vnt_control_out_u8(priv,
- MESSAGE_REQUEST_BBREG,
- 0xfb,
- calib_tx_iq);
- /* CR252, TX DC-Offset Calibration */
- vnt_control_out_u8(priv,
- MESSAGE_REQUEST_BBREG,
- 0xfC,
- calib_tx_dc);
- /* CR253, RX I/Q Imbalance Calibration */
- vnt_control_out_u8(priv,
- MESSAGE_REQUEST_BBREG,
- 0xfd,
- calib_rx_iq);
- } else {
- /* CR255, turn off
- BB Calibration compensation */
- vnt_control_out_u8(priv,
- MESSAGE_REQUEST_BBREG,
- 0xff,
- 0x0);
- }
- }
- }
- /* get permanent network address */
- memcpy(priv->permanent_net_addr, init_rsp->net_addr, 6);
- ether_addr_copy(priv->current_net_addr, priv->permanent_net_addr);
- /* if exist SW network address, use it */
- dev_dbg(&priv->usb->dev, "Network address = %pM\n",
- priv->current_net_addr);
- /*
- * set BB and packet type at the same time
- * set Short Slot Time, xIFS, and RSPINF
- */
- if (priv->bb_type == BB_TYPE_11A)
- priv->short_slot_time = true;
- else
- priv->short_slot_time = false;
- vnt_set_short_slot_time(priv);
- priv->radio_ctl = priv->eeprom[EEP_OFS_RADIOCTL];
- if ((priv->radio_ctl & EEP_RADIOCTL_ENABLE) != 0) {
- status = vnt_control_in(priv, MESSAGE_TYPE_READ,
- MAC_REG_GPIOCTL1, MESSAGE_REQUEST_MACREG, 1, &tmp);
- if (status != STATUS_SUCCESS)
- return false;
- if ((tmp & GPIO3_DATA) == 0)
- vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1,
- GPIO3_INTMD);
- else
- vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1,
- GPIO3_INTMD);
- }
- vnt_mac_set_led(priv, LEDSTS_TMLEN, 0x38);
- vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
- vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, 0x01);
- vnt_radio_power_on(priv);
- dev_dbg(&priv->usb->dev, "<----INIbInitAdapter Exit\n");
- return true;
- }
- static void vnt_free_tx_bufs(struct vnt_private *priv)
- {
- struct vnt_usb_send_context *tx_context;
- int ii;
- for (ii = 0; ii < priv->num_tx_context; ii++) {
- tx_context = priv->tx_context[ii];
- /* deallocate URBs */
- if (tx_context->urb) {
- usb_kill_urb(tx_context->urb);
- usb_free_urb(tx_context->urb);
- }
- kfree(tx_context);
- }
- }
- static void vnt_free_rx_bufs(struct vnt_private *priv)
- {
- struct vnt_rcb *rcb;
- int ii;
- for (ii = 0; ii < priv->num_rcb; ii++) {
- rcb = priv->rcb[ii];
- if (!rcb)
- continue;
- /* deallocate URBs */
- if (rcb->urb) {
- usb_kill_urb(rcb->urb);
- usb_free_urb(rcb->urb);
- }
- /* deallocate skb */
- if (rcb->skb)
- dev_kfree_skb(rcb->skb);
- kfree(rcb);
- }
- }
- static void usb_device_reset(struct vnt_private *priv)
- {
- int status;
- status = usb_reset_device(priv->usb);
- if (status)
- dev_warn(&priv->usb->dev,
- "usb_device_reset fail status=%d\n", status);
- }
- static void vnt_free_int_bufs(struct vnt_private *priv)
- {
- kfree(priv->int_buf.data_buf);
- }
- static bool vnt_alloc_bufs(struct vnt_private *priv)
- {
- struct vnt_usb_send_context *tx_context;
- struct vnt_rcb *rcb;
- int ii;
- for (ii = 0; ii < priv->num_tx_context; ii++) {
- tx_context = kmalloc(sizeof(struct vnt_usb_send_context),
- GFP_KERNEL);
- if (tx_context == NULL)
- goto free_tx;
- priv->tx_context[ii] = tx_context;
- tx_context->priv = priv;
- tx_context->pkt_no = ii;
- /* allocate URBs */
- tx_context->urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!tx_context->urb) {
- dev_err(&priv->usb->dev, "alloc tx urb failed\n");
- goto free_tx;
- }
- tx_context->in_use = false;
- }
- for (ii = 0; ii < priv->num_rcb; ii++) {
- priv->rcb[ii] = kzalloc(sizeof(struct vnt_rcb), GFP_KERNEL);
- if (!priv->rcb[ii]) {
- dev_err(&priv->usb->dev,
- "failed to allocate rcb no %d\n", ii);
- goto free_rx_tx;
- }
- rcb = priv->rcb[ii];
- rcb->priv = priv;
- /* allocate URBs */
- rcb->urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (rcb->urb == NULL) {
- dev_err(&priv->usb->dev, "Failed to alloc rx urb\n");
- goto free_rx_tx;
- }
- rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
- if (rcb->skb == NULL)
- goto free_rx_tx;
- rcb->in_use = false;
- /* submit rx urb */
- if (vnt_submit_rx_urb(priv, rcb))
- goto free_rx_tx;
- }
- priv->interrupt_urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (priv->interrupt_urb == NULL) {
- dev_err(&priv->usb->dev, "Failed to alloc int urb\n");
- goto free_rx_tx;
- }
- priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
- if (priv->int_buf.data_buf == NULL) {
- usb_free_urb(priv->interrupt_urb);
- goto free_rx_tx;
- }
- return true;
- free_rx_tx:
- vnt_free_rx_bufs(priv);
- free_tx:
- vnt_free_tx_bufs(priv);
- return false;
- }
- static void vnt_tx_80211(struct ieee80211_hw *hw,
- struct ieee80211_tx_control *control, struct sk_buff *skb)
- {
- struct vnt_private *priv = hw->priv;
- if (vnt_tx_packet(priv, skb))
- ieee80211_free_txskb(hw, skb);
- }
- static int vnt_start(struct ieee80211_hw *hw)
- {
- struct vnt_private *priv = hw->priv;
- priv->rx_buf_sz = MAX_TOTAL_SIZE_WITH_ALL_HEADERS;
- if (!vnt_alloc_bufs(priv)) {
- dev_dbg(&priv->usb->dev, "vnt_alloc_bufs fail...\n");
- return -ENOMEM;
- }
- clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
- if (vnt_init_registers(priv) == false) {
- dev_dbg(&priv->usb->dev, " init register fail\n");
- goto free_all;
- }
- if (vnt_key_init_table(priv))
- goto free_all;
- priv->int_interval = 1; /* bInterval is set to 1 */
- vnt_int_start_interrupt(priv);
- ieee80211_wake_queues(hw);
- return 0;
- free_all:
- vnt_free_rx_bufs(priv);
- vnt_free_tx_bufs(priv);
- vnt_free_int_bufs(priv);
- usb_kill_urb(priv->interrupt_urb);
- usb_free_urb(priv->interrupt_urb);
- return -ENOMEM;
- }
- static void vnt_stop(struct ieee80211_hw *hw)
- {
- struct vnt_private *priv = hw->priv;
- int i;
- if (!priv)
- return;
- for (i = 0; i < MAX_KEY_TABLE; i++)
- vnt_mac_disable_keyentry(priv, i);
- /* clear all keys */
- priv->key_entry_inuse = 0;
- if (!test_bit(DEVICE_FLAGS_UNPLUG, &priv->flags))
- vnt_mac_shutdown(priv);
- ieee80211_stop_queues(hw);
- set_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
- cancel_delayed_work_sync(&priv->run_command_work);
- priv->cmd_running = false;
- vnt_free_tx_bufs(priv);
- vnt_free_rx_bufs(priv);
- vnt_free_int_bufs(priv);
- usb_kill_urb(priv->interrupt_urb);
- usb_free_urb(priv->interrupt_urb);
- }
- static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
- {
- struct vnt_private *priv = hw->priv;
- priv->vif = vif;
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- break;
- case NL80211_IFTYPE_ADHOC:
- vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
- vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
- break;
- case NL80211_IFTYPE_AP:
- vnt_mac_reg_bits_off(priv, MAC_REG_RCR, RCR_UNICAST);
- vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_AP);
- break;
- default:
- return -EOPNOTSUPP;
- }
- priv->op_mode = vif->type;
- vnt_set_bss_mode(priv);
- /* LED blink on TX */
- vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_INTER);
- return 0;
- }
- static void vnt_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
- {
- struct vnt_private *priv = hw->priv;
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- break;
- case NL80211_IFTYPE_ADHOC:
- vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
- vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
- vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_ADHOC);
- break;
- case NL80211_IFTYPE_AP:
- vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
- vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
- vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_AP);
- break;
- default:
- break;
- }
- vnt_radio_power_off(priv);
- priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
- /* LED slow blink */
- vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
- }
- static int vnt_config(struct ieee80211_hw *hw, u32 changed)
- {
- struct vnt_private *priv = hw->priv;
- struct ieee80211_conf *conf = &hw->conf;
- u8 bb_type;
- if (changed & IEEE80211_CONF_CHANGE_PS) {
- if (conf->flags & IEEE80211_CONF_PS)
- vnt_enable_power_saving(priv, conf->listen_interval);
- else
- vnt_disable_power_saving(priv);
- }
- if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
- (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
- vnt_set_channel(priv, conf->chandef.chan->hw_value);
- if (conf->chandef.chan->band == IEEE80211_BAND_5GHZ)
- bb_type = BB_TYPE_11A;
- else
- bb_type = BB_TYPE_11G;
- if (priv->bb_type != bb_type) {
- priv->bb_type = bb_type;
- vnt_set_bss_mode(priv);
- }
- }
- if (changed & IEEE80211_CONF_CHANGE_POWER) {
- if (priv->bb_type == BB_TYPE_11B)
- priv->current_rate = RATE_1M;
- else
- priv->current_rate = RATE_54M;
- vnt_rf_setpower(priv, priv->current_rate,
- conf->chandef.chan->hw_value);
- }
- return 0;
- }
- static void vnt_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, struct ieee80211_bss_conf *conf,
- u32 changed)
- {
- struct vnt_private *priv = hw->priv;
- priv->current_aid = conf->aid;
- if (changed & BSS_CHANGED_BSSID && conf->bssid)
- vnt_mac_set_bssid_addr(priv, (u8 *)conf->bssid);
- if (changed & BSS_CHANGED_BASIC_RATES) {
- priv->basic_rates = conf->basic_rates;
- vnt_update_top_rates(priv);
- dev_dbg(&priv->usb->dev, "basic rates %x\n", conf->basic_rates);
- }
- if (changed & BSS_CHANGED_ERP_PREAMBLE) {
- if (conf->use_short_preamble) {
- vnt_mac_enable_barker_preamble_mode(priv);
- priv->preamble_type = true;
- } else {
- vnt_mac_disable_barker_preamble_mode(priv);
- priv->preamble_type = false;
- }
- }
- if (changed & BSS_CHANGED_ERP_CTS_PROT) {
- if (conf->use_cts_prot)
- vnt_mac_enable_protect_mode(priv);
- else
- vnt_mac_disable_protect_mode(priv);
- }
- if (changed & BSS_CHANGED_ERP_SLOT) {
- if (conf->use_short_slot)
- priv->short_slot_time = true;
- else
- priv->short_slot_time = false;
- vnt_set_short_slot_time(priv);
- vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
- vnt_update_pre_ed_threshold(priv, false);
- }
- if (changed & BSS_CHANGED_TXPOWER)
- vnt_rf_setpower(priv, priv->current_rate,
- conf->chandef.chan->hw_value);
- if (changed & BSS_CHANGED_BEACON_ENABLED) {
- dev_dbg(&priv->usb->dev,
- "Beacon enable %d\n", conf->enable_beacon);
- if (conf->enable_beacon) {
- vnt_beacon_enable(priv, vif, conf);
- vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
- } else {
- vnt_mac_reg_bits_off(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
- }
- }
- if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INFO) &&
- priv->op_mode != NL80211_IFTYPE_AP) {
- if (conf->assoc && conf->beacon_rate) {
- vnt_mac_reg_bits_on(priv, MAC_REG_TFTCTL,
- TFTCTL_TSFCNTREN);
- vnt_adjust_tsf(priv, conf->beacon_rate->hw_value,
- conf->sync_tsf, priv->current_tsf);
- vnt_mac_set_beacon_interval(priv, conf->beacon_int);
- vnt_reset_next_tbtt(priv, conf->beacon_int);
- } else {
- vnt_clear_current_tsf(priv);
- vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL,
- TFTCTL_TSFCNTREN);
- }
- }
- }
- static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
- struct netdev_hw_addr_list *mc_list)
- {
- struct vnt_private *priv = hw->priv;
- struct netdev_hw_addr *ha;
- u64 mc_filter = 0;
- u32 bit_nr = 0;
- netdev_hw_addr_list_for_each(ha, mc_list) {
- bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
- mc_filter |= 1ULL << (bit_nr & 0x3f);
- }
- priv->mc_list_count = mc_list->count;
- return mc_filter;
- }
- static void vnt_configure(struct ieee80211_hw *hw,
- unsigned int changed_flags, unsigned int *total_flags, u64 multicast)
- {
- struct vnt_private *priv = hw->priv;
- u8 rx_mode = 0;
- int rc;
- *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC;
- rc = vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_RCR,
- MESSAGE_REQUEST_MACREG, sizeof(u8), &rx_mode);
- if (!rc)
- rx_mode = RCR_MULTICAST | RCR_BROADCAST;
- dev_dbg(&priv->usb->dev, "rx mode in = %x\n", rx_mode);
- if (changed_flags & FIF_ALLMULTI) {
- if (*total_flags & FIF_ALLMULTI) {
- if (priv->mc_list_count > 2)
- vnt_mac_set_filter(priv, ~0);
- else
- vnt_mac_set_filter(priv, multicast);
- rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
- } else {
- rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
- }
- }
- if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
- if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
- rx_mode &= ~RCR_BSSID;
- else
- rx_mode |= RCR_BSSID;
- }
- vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_RCR, rx_mode);
- dev_dbg(&priv->usb->dev, "rx mode out= %x\n", rx_mode);
- }
- static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
- {
- struct vnt_private *priv = hw->priv;
- switch (cmd) {
- case SET_KEY:
- if (vnt_set_keys(hw, sta, vif, key))
- return -EOPNOTSUPP;
- break;
- case DISABLE_KEY:
- if (test_bit(key->hw_key_idx, &priv->key_entry_inuse))
- clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
- default:
- break;
- }
- return 0;
- }
- static void vnt_sw_scan_start(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- const u8 *addr)
- {
- struct vnt_private *priv = hw->priv;
- vnt_set_bss_mode(priv);
- /* Set max sensitivity*/
- vnt_update_pre_ed_threshold(priv, true);
- }
- static void vnt_sw_scan_complete(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
- {
- struct vnt_private *priv = hw->priv;
- /* Return sensitivity to channel level*/
- vnt_update_pre_ed_threshold(priv, false);
- }
- static int vnt_get_stats(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats)
- {
- struct vnt_private *priv = hw->priv;
- memcpy(stats, &priv->low_stats, sizeof(*stats));
- return 0;
- }
- static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
- {
- struct vnt_private *priv = hw->priv;
- return priv->current_tsf;
- }
- static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- u64 tsf)
- {
- struct vnt_private *priv = hw->priv;
- vnt_update_next_tbtt(priv, tsf, vif->bss_conf.beacon_int);
- }
- static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
- {
- struct vnt_private *priv = hw->priv;
- vnt_mac_reg_bits_off(priv, MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
- vnt_clear_current_tsf(priv);
- }
- static const struct ieee80211_ops vnt_mac_ops = {
- .tx = vnt_tx_80211,
- .start = vnt_start,
- .stop = vnt_stop,
- .add_interface = vnt_add_interface,
- .remove_interface = vnt_remove_interface,
- .config = vnt_config,
- .bss_info_changed = vnt_bss_info_changed,
- .prepare_multicast = vnt_prepare_multicast,
- .configure_filter = vnt_configure,
- .set_key = vnt_set_key,
- .sw_scan_start = vnt_sw_scan_start,
- .sw_scan_complete = vnt_sw_scan_complete,
- .get_stats = vnt_get_stats,
- .get_tsf = vnt_get_tsf,
- .set_tsf = vnt_set_tsf,
- .reset_tsf = vnt_reset_tsf,
- };
- int vnt_init(struct vnt_private *priv)
- {
- if (!(vnt_init_registers(priv)))
- return -EAGAIN;
- SET_IEEE80211_PERM_ADDR(priv->hw, priv->permanent_net_addr);
- vnt_init_bands(priv);
- if (ieee80211_register_hw(priv->hw))
- return -ENODEV;
- priv->mac_hw = true;
- vnt_radio_power_off(priv);
- return 0;
- }
- static int
- vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
- {
- struct usb_device *udev;
- struct vnt_private *priv;
- struct ieee80211_hw *hw;
- struct wiphy *wiphy;
- int rc = 0;
- udev = usb_get_dev(interface_to_usbdev(intf));
- dev_notice(&udev->dev, "%s Ver. %s\n",
- DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
- dev_notice(&udev->dev,
- "Copyright (c) 2004 VIA Networking Technologies, Inc.\n");
- hw = ieee80211_alloc_hw(sizeof(struct vnt_private), &vnt_mac_ops);
- if (!hw) {
- dev_err(&udev->dev, "could not register ieee80211_hw\n");
- rc = -ENOMEM;
- goto err_nomem;
- }
- priv = hw->priv;
- priv->hw = hw;
- priv->usb = udev;
- vnt_set_options(priv);
- spin_lock_init(&priv->lock);
- mutex_init(&priv->usb_lock);
- INIT_DELAYED_WORK(&priv->run_command_work, vnt_run_command);
- usb_set_intfdata(intf, priv);
- wiphy = priv->hw->wiphy;
- wiphy->frag_threshold = FRAG_THRESH_DEF;
- wiphy->rts_threshold = RTS_THRESH_DEF;
- wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
- ieee80211_hw_set(priv->hw, TIMING_BEACON_ONLY);
- ieee80211_hw_set(priv->hw, SIGNAL_DBM);
- ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
- ieee80211_hw_set(priv->hw, REPORTS_TX_ACK_STATUS);
- ieee80211_hw_set(priv->hw, SUPPORTS_PS);
- priv->hw->max_signal = 100;
- SET_IEEE80211_DEV(priv->hw, &intf->dev);
- usb_device_reset(priv);
- clear_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
- vnt_reset_command_timer(priv);
- vnt_schedule_command(priv, WLAN_CMD_INIT_MAC80211);
- return 0;
- err_nomem:
- usb_put_dev(udev);
- return rc;
- }
- static void vt6656_disconnect(struct usb_interface *intf)
- {
- struct vnt_private *priv = usb_get_intfdata(intf);
- if (!priv)
- return;
- if (priv->mac_hw)
- ieee80211_unregister_hw(priv->hw);
- usb_set_intfdata(intf, NULL);
- usb_put_dev(interface_to_usbdev(intf));
- set_bit(DEVICE_FLAGS_UNPLUG, &priv->flags);
- ieee80211_free_hw(priv->hw);
- }
- #ifdef CONFIG_PM
- static int vt6656_suspend(struct usb_interface *intf, pm_message_t message)
- {
- return 0;
- }
- static int vt6656_resume(struct usb_interface *intf)
- {
- return 0;
- }
- #endif /* CONFIG_PM */
- MODULE_DEVICE_TABLE(usb, vt6656_table);
- static struct usb_driver vt6656_driver = {
- .name = DEVICE_NAME,
- .probe = vt6656_probe,
- .disconnect = vt6656_disconnect,
- .id_table = vt6656_table,
- #ifdef CONFIG_PM
- .suspend = vt6656_suspend,
- .resume = vt6656_resume,
- #endif /* CONFIG_PM */
- };
- module_usb_driver(vt6656_driver);
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