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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: 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 != true)
- 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 == true)
- 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 == true)
- 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 == false)
- 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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