![Scott Matheina](/assets/img/avatar_default.png)
Fixed the following checkpatch warnings by deleting blank lines Blank lines aren't necessary before a close brace '}' Blank lines aren't necessary after an open brace '{' Please don't use multiple blank lines Signed-off-by: Scott Matheina <scott@matheina.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1059 lines
24 KiB
C
1059 lines
24 KiB
C
/*
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* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* File: main_usb.c
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*
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* Purpose: driver entry for initial, open, close, tx and rx.
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*
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* Author: Lyndon Chen
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*
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* Date: Dec 8, 2005
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*
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* Functions:
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*
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* vt6656_probe - module initial (insmod) driver entry
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* vnt_free_tx_bufs - free tx buffer function
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* vnt_init_registers- initial MAC & BBP & RF internal registers.
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*
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* Revision History:
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*/
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#undef __NO_VERSION__
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#include <linux/etherdevice.h>
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#include <linux/file.h>
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#include "device.h"
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#include "card.h"
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#include "baseband.h"
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#include "mac.h"
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#include "power.h"
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#include "wcmd.h"
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#include "rxtx.h"
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#include "dpc.h"
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#include "rf.h"
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#include "firmware.h"
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#include "usbpipe.h"
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#include "channel.h"
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#include "int.h"
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/*
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* define module options
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*/
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/* version information */
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#define DRIVER_AUTHOR \
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"VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>"
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION(DEVICE_FULL_DRV_NAM);
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#define RX_DESC_DEF0 64
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static int vnt_rx_buffers = RX_DESC_DEF0;
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module_param_named(rx_buffers, vnt_rx_buffers, int, 0644);
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MODULE_PARM_DESC(rx_buffers, "Number of receive usb rx buffers");
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#define TX_DESC_DEF0 64
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static int vnt_tx_buffers = TX_DESC_DEF0;
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module_param_named(tx_buffers, vnt_tx_buffers, int, 0644);
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MODULE_PARM_DESC(tx_buffers, "Number of receive usb tx buffers");
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#define RTS_THRESH_DEF 2347
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#define FRAG_THRESH_DEF 2346
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#define SHORT_RETRY_DEF 8
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#define LONG_RETRY_DEF 4
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/* BasebandType[] baseband type selected
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* 0: indicate 802.11a type
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* 1: indicate 802.11b type
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* 2: indicate 802.11g type
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*/
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#define BBP_TYPE_DEF 2
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/*
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* Static vars definitions
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*/
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static const struct usb_device_id vt6656_table[] = {
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{USB_DEVICE(VNT_USB_VENDOR_ID, VNT_USB_PRODUCT_ID)},
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{}
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};
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static void vnt_set_options(struct vnt_private *priv)
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{
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/* Set number of TX buffers */
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if (vnt_tx_buffers < CB_MIN_TX_DESC || vnt_tx_buffers > CB_MAX_TX_DESC)
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priv->num_tx_context = TX_DESC_DEF0;
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else
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priv->num_tx_context = vnt_tx_buffers;
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/* Set number of RX buffers */
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if (vnt_rx_buffers < CB_MIN_RX_DESC || vnt_rx_buffers > CB_MAX_RX_DESC)
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priv->num_rcb = RX_DESC_DEF0;
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else
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priv->num_rcb = vnt_rx_buffers;
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priv->short_retry_limit = SHORT_RETRY_DEF;
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priv->long_retry_limit = LONG_RETRY_DEF;
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priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
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priv->bb_type = BBP_TYPE_DEF;
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priv->packet_type = priv->bb_type;
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priv->auto_fb_ctrl = AUTO_FB_0;
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priv->preamble_type = 0;
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priv->exist_sw_net_addr = false;
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}
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/*
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* initialization of MAC & BBP registers
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*/
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static int vnt_init_registers(struct vnt_private *priv)
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{
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struct vnt_cmd_card_init *init_cmd = &priv->init_command;
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struct vnt_rsp_card_init *init_rsp = &priv->init_response;
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u8 antenna;
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int ii;
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int status = STATUS_SUCCESS;
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u8 tmp;
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u8 calib_tx_iq = 0, calib_tx_dc = 0, calib_rx_iq = 0;
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dev_dbg(&priv->usb->dev, "---->INIbInitAdapter. [%d][%d]\n",
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DEVICE_INIT_COLD, priv->packet_type);
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if (!vnt_check_firmware_version(priv)) {
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if (vnt_download_firmware(priv) == true) {
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if (vnt_firmware_branch_to_sram(priv) == false) {
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dev_dbg(&priv->usb->dev,
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" vnt_firmware_branch_to_sram fail\n");
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return false;
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}
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} else {
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dev_dbg(&priv->usb->dev, "FIRMWAREbDownload fail\n");
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return false;
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}
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}
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if (!vnt_vt3184_init(priv)) {
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dev_dbg(&priv->usb->dev, "vnt_vt3184_init fail\n");
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return false;
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}
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init_cmd->init_class = DEVICE_INIT_COLD;
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init_cmd->exist_sw_net_addr = priv->exist_sw_net_addr;
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for (ii = 0; ii < 6; ii++)
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init_cmd->sw_net_addr[ii] = priv->current_net_addr[ii];
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init_cmd->short_retry_limit = priv->short_retry_limit;
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init_cmd->long_retry_limit = priv->long_retry_limit;
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/* issue card_init command to device */
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status = vnt_control_out(priv, MESSAGE_TYPE_CARDINIT, 0, 0,
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sizeof(struct vnt_cmd_card_init),
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(u8 *)init_cmd);
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if (status != STATUS_SUCCESS) {
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dev_dbg(&priv->usb->dev, "Issue Card init fail\n");
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return false;
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}
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status = vnt_control_in(priv, MESSAGE_TYPE_INIT_RSP, 0, 0,
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sizeof(struct vnt_rsp_card_init),
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(u8 *)init_rsp);
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if (status != STATUS_SUCCESS) {
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dev_dbg(&priv->usb->dev,
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"Cardinit request in status fail!\n");
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return false;
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}
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/* local ID for AES functions */
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status = vnt_control_in(priv, MESSAGE_TYPE_READ, MAC_REG_LOCALID,
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MESSAGE_REQUEST_MACREG, 1, &priv->local_id);
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if (status != STATUS_SUCCESS)
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return false;
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/* do MACbSoftwareReset in MACvInitialize */
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priv->top_ofdm_basic_rate = RATE_24M;
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priv->top_cck_basic_rate = RATE_1M;
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/* target to IF pin while programming to RF chip */
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priv->power = 0xFF;
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priv->cck_pwr = priv->eeprom[EEP_OFS_PWR_CCK];
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priv->ofdm_pwr_g = priv->eeprom[EEP_OFS_PWR_OFDMG];
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/* load power table */
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for (ii = 0; ii < 14; ii++) {
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priv->cck_pwr_tbl[ii] =
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priv->eeprom[ii + EEP_OFS_CCK_PWR_TBL];
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if (priv->cck_pwr_tbl[ii] == 0)
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priv->cck_pwr_tbl[ii] = priv->cck_pwr;
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priv->ofdm_pwr_tbl[ii] =
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priv->eeprom[ii + EEP_OFS_OFDM_PWR_TBL];
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if (priv->ofdm_pwr_tbl[ii] == 0)
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priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_g;
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}
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/*
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* original zonetype is USA, but custom zonetype is Europe,
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* then need to recover 12, 13, 14 channels with 11 channel
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*/
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for (ii = 11; ii < 14; ii++) {
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priv->cck_pwr_tbl[ii] = priv->cck_pwr_tbl[10];
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priv->ofdm_pwr_tbl[ii] = priv->ofdm_pwr_tbl[10];
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}
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priv->ofdm_pwr_a = 0x34; /* same as RFbMA2829SelectChannel */
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/* load OFDM A power table */
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for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
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priv->ofdm_a_pwr_tbl[ii] =
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priv->eeprom[ii + EEP_OFS_OFDMA_PWR_TBL];
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if (priv->ofdm_a_pwr_tbl[ii] == 0)
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priv->ofdm_a_pwr_tbl[ii] = priv->ofdm_pwr_a;
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}
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antenna = priv->eeprom[EEP_OFS_ANTENNA];
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if (antenna & EEP_ANTINV)
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priv->tx_rx_ant_inv = true;
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else
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priv->tx_rx_ant_inv = false;
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antenna &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
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if (antenna == 0) /* if not set default is both */
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antenna = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
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if (antenna == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
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priv->tx_antenna_mode = ANT_B;
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priv->rx_antenna_sel = 1;
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if (priv->tx_rx_ant_inv)
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priv->rx_antenna_mode = ANT_A;
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else
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priv->rx_antenna_mode = ANT_B;
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} else {
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priv->rx_antenna_sel = 0;
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if (antenna & EEP_ANTENNA_AUX) {
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priv->tx_antenna_mode = ANT_A;
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if (priv->tx_rx_ant_inv)
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priv->rx_antenna_mode = ANT_B;
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else
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priv->rx_antenna_mode = ANT_A;
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} else {
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priv->tx_antenna_mode = ANT_B;
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if (priv->tx_rx_ant_inv)
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priv->rx_antenna_mode = ANT_A;
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else
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priv->rx_antenna_mode = ANT_B;
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}
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}
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/* Set initial antenna mode */
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vnt_set_antenna_mode(priv, priv->rx_antenna_mode);
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/* get Auto Fall Back type */
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priv->auto_fb_ctrl = AUTO_FB_0;
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/* default Auto Mode */
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priv->bb_type = BB_TYPE_11G;
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/* get RFType */
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priv->rf_type = init_rsp->rf_type;
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/* load vt3266 calibration parameters in EEPROM */
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if (priv->rf_type == RF_VT3226D0) {
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if ((priv->eeprom[EEP_OFS_MAJOR_VER] == 0x1) &&
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(priv->eeprom[EEP_OFS_MINOR_VER] >= 0x4)) {
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calib_tx_iq = priv->eeprom[EEP_OFS_CALIB_TX_IQ];
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calib_tx_dc = priv->eeprom[EEP_OFS_CALIB_TX_DC];
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calib_rx_iq = priv->eeprom[EEP_OFS_CALIB_RX_IQ];
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if (calib_tx_iq || calib_tx_dc || calib_rx_iq) {
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/* CR255, enable TX/RX IQ and
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* DC compensation mode
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*/
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vnt_control_out_u8(priv,
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MESSAGE_REQUEST_BBREG,
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0xff,
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0x03);
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/* CR251, TX I/Q Imbalance Calibration */
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vnt_control_out_u8(priv,
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MESSAGE_REQUEST_BBREG,
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0xfb,
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calib_tx_iq);
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/* CR252, TX DC-Offset Calibration */
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vnt_control_out_u8(priv,
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MESSAGE_REQUEST_BBREG,
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0xfC,
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calib_tx_dc);
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/* CR253, RX I/Q Imbalance Calibration */
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vnt_control_out_u8(priv,
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MESSAGE_REQUEST_BBREG,
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0xfd,
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calib_rx_iq);
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} else {
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/* CR255, turn off
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* BB Calibration compensation
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*/
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vnt_control_out_u8(priv,
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MESSAGE_REQUEST_BBREG,
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0xff,
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0x0);
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}
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}
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}
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/* get permanent network address */
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memcpy(priv->permanent_net_addr, init_rsp->net_addr, 6);
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ether_addr_copy(priv->current_net_addr, priv->permanent_net_addr);
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/* if exist SW network address, use it */
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dev_dbg(&priv->usb->dev, "Network address = %pM\n",
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priv->current_net_addr);
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/*
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* set BB and packet type at the same time
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* set Short Slot Time, xIFS, and RSPINF
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*/
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if (priv->bb_type == BB_TYPE_11A)
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priv->short_slot_time = true;
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else
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priv->short_slot_time = false;
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vnt_set_short_slot_time(priv);
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priv->radio_ctl = priv->eeprom[EEP_OFS_RADIOCTL];
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if ((priv->radio_ctl & EEP_RADIOCTL_ENABLE) != 0) {
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status = vnt_control_in(priv, MESSAGE_TYPE_READ,
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MAC_REG_GPIOCTL1,
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MESSAGE_REQUEST_MACREG, 1, &tmp);
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if (status != STATUS_SUCCESS)
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return false;
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if ((tmp & GPIO3_DATA) == 0)
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vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1,
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GPIO3_INTMD);
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else
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vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1,
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GPIO3_INTMD);
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}
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vnt_mac_set_led(priv, LEDSTS_TMLEN, 0x38);
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vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_SLOW);
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vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, 0x01);
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vnt_radio_power_on(priv);
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dev_dbg(&priv->usb->dev, "<----INIbInitAdapter Exit\n");
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return true;
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}
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static void vnt_free_tx_bufs(struct vnt_private *priv)
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{
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struct vnt_usb_send_context *tx_context;
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int ii;
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for (ii = 0; ii < priv->num_tx_context; ii++) {
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tx_context = priv->tx_context[ii];
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/* deallocate URBs */
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if (tx_context->urb) {
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usb_kill_urb(tx_context->urb);
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usb_free_urb(tx_context->urb);
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}
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kfree(tx_context);
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}
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}
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static void vnt_free_rx_bufs(struct vnt_private *priv)
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{
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struct vnt_rcb *rcb;
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int ii;
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for (ii = 0; ii < priv->num_rcb; ii++) {
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rcb = priv->rcb[ii];
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if (!rcb)
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continue;
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/* deallocate URBs */
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if (rcb->urb) {
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usb_kill_urb(rcb->urb);
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usb_free_urb(rcb->urb);
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}
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/* deallocate skb */
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if (rcb->skb)
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dev_kfree_skb(rcb->skb);
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kfree(rcb);
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}
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}
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static void usb_device_reset(struct vnt_private *priv)
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{
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int status;
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status = usb_reset_device(priv->usb);
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if (status)
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dev_warn(&priv->usb->dev,
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"usb_device_reset fail status=%d\n", status);
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}
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static void vnt_free_int_bufs(struct vnt_private *priv)
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{
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kfree(priv->int_buf.data_buf);
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}
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static bool vnt_alloc_bufs(struct vnt_private *priv)
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{
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struct vnt_usb_send_context *tx_context;
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struct vnt_rcb *rcb;
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int ii;
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for (ii = 0; ii < priv->num_tx_context; ii++) {
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tx_context = kmalloc(sizeof(struct vnt_usb_send_context),
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GFP_KERNEL);
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if (!tx_context)
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goto free_tx;
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priv->tx_context[ii] = tx_context;
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tx_context->priv = priv;
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tx_context->pkt_no = ii;
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/* allocate URBs */
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tx_context->urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!tx_context->urb)
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goto free_tx;
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tx_context->in_use = false;
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}
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for (ii = 0; ii < priv->num_rcb; ii++) {
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priv->rcb[ii] = kzalloc(sizeof(struct vnt_rcb), GFP_KERNEL);
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if (!priv->rcb[ii]) {
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dev_err(&priv->usb->dev,
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"failed to allocate rcb no %d\n", ii);
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goto free_rx_tx;
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}
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rcb = priv->rcb[ii];
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rcb->priv = priv;
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/* allocate URBs */
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rcb->urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!rcb->urb)
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goto free_rx_tx;
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rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
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if (!rcb->skb)
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goto free_rx_tx;
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rcb->in_use = false;
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/* submit rx urb */
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if (vnt_submit_rx_urb(priv, rcb))
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goto free_rx_tx;
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}
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priv->interrupt_urb = usb_alloc_urb(0, GFP_KERNEL);
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if (!priv->interrupt_urb)
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goto free_rx_tx;
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priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
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if (!priv->int_buf.data_buf) {
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usb_free_urb(priv->interrupt_urb);
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goto free_rx_tx;
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}
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return true;
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free_rx_tx:
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vnt_free_rx_bufs(priv);
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|
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free_tx:
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vnt_free_tx_bufs(priv);
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|
|
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;
|
|
}
|
|
|
|
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 == NL80211_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);
|