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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.
*
*
* File: wcmd.c
*
* Purpose: Handles the management command interface functions
*
* Author: Lyndon Chen
*
* Date: May 8, 2003
*
* Functions:
* vnt_cmd_complete - Command Complete function
* vnt_schedule_command - Push Command and wait Command Scheduler to do
* vnt_cmd_timer_wait- Call back timer
*
* Revision History:
*
*/
#include "device.h"
#include "mac.h"
#include "wcmd.h"
#include "power.h"
#include "usbpipe.h"
#include "rxtx.h"
#include "rf.h"
static void vnt_cmd_timer_wait(struct vnt_private *priv, unsigned long msecs)
{
schedule_delayed_work(&priv->run_command_work, msecs_to_jiffies(msecs));
}
static int vnt_cmd_complete(struct vnt_private *priv)
{
priv->command_state = WLAN_CMD_IDLE;
if (priv->free_cmd_queue == CMD_Q_SIZE) {
/* Command Queue Empty */
priv->cmd_running = false;
return true;
}
priv->command = priv->cmd_queue[priv->cmd_dequeue_idx];
ADD_ONE_WITH_WRAP_AROUND(priv->cmd_dequeue_idx, CMD_Q_SIZE);
priv->free_cmd_queue++;
priv->cmd_running = true;
switch (priv->command) {
case WLAN_CMD_INIT_MAC80211:
priv->command_state = WLAN_CMD_INIT_MAC80211_START;
break;
case WLAN_CMD_TBTT_WAKEUP:
priv->command_state = WLAN_CMD_TBTT_WAKEUP_START;
break;
case WLAN_CMD_BECON_SEND:
priv->command_state = WLAN_CMD_BECON_SEND_START;
break;
case WLAN_CMD_SETPOWER:
priv->command_state = WLAN_CMD_SETPOWER_START;
break;
case WLAN_CMD_CHANGE_ANTENNA:
priv->command_state = WLAN_CMD_CHANGE_ANTENNA_START;
break;
default:
break;
}
vnt_cmd_timer_wait(priv, 0);
return true;
}
void vnt_run_command(struct work_struct *work)
{
struct vnt_private *priv =
container_of(work, struct vnt_private, run_command_work.work);
if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
return;
if (!priv->cmd_running)
return;
switch (priv->command_state) {
case WLAN_CMD_INIT_MAC80211_START:
if (priv->mac_hw)
break;
dev_info(&priv->usb->dev, "Starting mac80211\n");
if (vnt_init(priv)) {
/* If fail all ends TODO retry */
dev_err(&priv->usb->dev, "failed to start\n");
ieee80211_free_hw(priv->hw);
return;
}
break;
case WLAN_CMD_TBTT_WAKEUP_START:
vnt_next_tbtt_wakeup(priv);
break;
case WLAN_CMD_BECON_SEND_START:
if (!priv->vif)
break;
vnt_beacon_make(priv, priv->vif);
vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
break;
case WLAN_CMD_SETPOWER_START:
vnt_rf_setpower(priv, priv->current_rate,
priv->hw->conf.chandef.chan->hw_value);
break;
case WLAN_CMD_CHANGE_ANTENNA_START:
dev_dbg(&priv->usb->dev, "Change from Antenna%d to",
priv->rx_antenna_sel);
if (priv->rx_antenna_sel == 0) {
priv->rx_antenna_sel = 1;
if (priv->tx_rx_ant_inv)
vnt_set_antenna_mode(priv, ANT_RXA);
else
vnt_set_antenna_mode(priv, ANT_RXB);
} else {
priv->rx_antenna_sel = 0;
if (priv->tx_rx_ant_inv)
vnt_set_antenna_mode(priv, ANT_RXB);
else
vnt_set_antenna_mode(priv, ANT_RXA);
}
break;
default:
break;
}
vnt_cmd_complete(priv);
}
int vnt_schedule_command(struct vnt_private *priv, enum vnt_cmd command)
{
if (priv->free_cmd_queue == 0)
return false;
priv->cmd_queue[priv->cmd_enqueue_idx] = command;
ADD_ONE_WITH_WRAP_AROUND(priv->cmd_enqueue_idx, CMD_Q_SIZE);
priv->free_cmd_queue--;
if (!priv->cmd_running)
vnt_cmd_complete(priv);
return true;
}
void vnt_reset_command_timer(struct vnt_private *priv)
{
priv->free_cmd_queue = CMD_Q_SIZE;
priv->cmd_dequeue_idx = 0;
priv->cmd_enqueue_idx = 0;
priv->command_state = WLAN_CMD_IDLE;
priv->cmd_running = false;
}
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