| /* |
| * 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; |
| |
| ieee80211_stop_queues(hw); |
| |
| if (vnt_tx_packet(priv, skb)) { |
| ieee80211_free_txskb(hw, skb); |
| |
| ieee80211_wake_queues(hw); |
| } |
| } |
| |
| 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) == false) { |
| 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; |
| } |
| |
| 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); |
| } |
| } |
| } |
| |
| 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_PROMISC_IN_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_PROMISC_IN_BSS) { |
| /* unconditionally log net taps */ |
| if (*total_flags & FIF_PROMISC_IN_BSS) |
| rx_mode |= RCR_UNICAST; |
| else |
| rx_mode &= ~RCR_UNICAST; |
| } |
| |
| 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); |
| |
| priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
| IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
| IEEE80211_HW_SIGNAL_DBM | |
| IEEE80211_HW_TIMING_BEACON_ONLY; |
| |
| 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); |