// SPDX-License-Identifier: GPL-2.0+
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/*
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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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* File: wcmd.c
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*
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* Purpose: Handles the management command interface functions
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*
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* Author: Lyndon Chen
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*
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* Date: May 8, 2003
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*
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* Functions:
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* vnt_cmd_complete - Command Complete function
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* vnt_schedule_command - Push Command and wait Command Scheduler to do
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* vnt_cmd_timer_wait- Call back timer
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*
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* Revision History:
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*
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*/
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#include "device.h"
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#include "mac.h"
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#include "wcmd.h"
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#include "power.h"
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#include "usbpipe.h"
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#include "rxtx.h"
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#include "rf.h"
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static void vnt_cmd_timer_wait(struct vnt_private *priv, unsigned long msecs)
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{
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schedule_delayed_work(&priv->run_command_work, msecs_to_jiffies(msecs));
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}
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static int vnt_cmd_complete(struct vnt_private *priv)
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{
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priv->command_state = WLAN_CMD_IDLE;
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if (priv->free_cmd_queue == CMD_Q_SIZE) {
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/* Command Queue Empty */
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priv->cmd_running = false;
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return true;
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}
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priv->command = priv->cmd_queue[priv->cmd_dequeue_idx];
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ADD_ONE_WITH_WRAP_AROUND(priv->cmd_dequeue_idx, CMD_Q_SIZE);
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priv->free_cmd_queue++;
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priv->cmd_running = true;
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switch (priv->command) {
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case WLAN_CMD_INIT_MAC80211:
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priv->command_state = WLAN_CMD_INIT_MAC80211_START;
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break;
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case WLAN_CMD_TBTT_WAKEUP:
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priv->command_state = WLAN_CMD_TBTT_WAKEUP_START;
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break;
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case WLAN_CMD_BECON_SEND:
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priv->command_state = WLAN_CMD_BECON_SEND_START;
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break;
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case WLAN_CMD_SETPOWER:
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priv->command_state = WLAN_CMD_SETPOWER_START;
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break;
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case WLAN_CMD_CHANGE_ANTENNA:
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priv->command_state = WLAN_CMD_CHANGE_ANTENNA_START;
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break;
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default:
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break;
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}
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vnt_cmd_timer_wait(priv, 0);
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return true;
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}
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void vnt_run_command(struct work_struct *work)
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{
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struct vnt_private *priv =
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container_of(work, struct vnt_private, run_command_work.work);
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if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
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return;
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if (!priv->cmd_running)
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return;
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switch (priv->command_state) {
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case WLAN_CMD_INIT_MAC80211_START:
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if (priv->mac_hw)
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break;
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dev_info(&priv->usb->dev, "Starting mac80211\n");
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if (vnt_init(priv)) {
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/* If fail all ends TODO retry */
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dev_err(&priv->usb->dev, "failed to start\n");
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usb_set_intfdata(priv->intf, NULL);
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ieee80211_free_hw(priv->hw);
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return;
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}
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break;
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case WLAN_CMD_TBTT_WAKEUP_START:
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vnt_next_tbtt_wakeup(priv);
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break;
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case WLAN_CMD_BECON_SEND_START:
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if (!priv->vif)
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break;
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vnt_beacon_make(priv, priv->vif);
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vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
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break;
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case WLAN_CMD_SETPOWER_START:
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vnt_rf_setpower(priv, priv->hw->conf.chandef.chan);
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break;
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case WLAN_CMD_CHANGE_ANTENNA_START:
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dev_dbg(&priv->usb->dev, "Change from Antenna%d to",
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priv->rx_antenna_sel);
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if (priv->rx_antenna_sel == 0) {
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priv->rx_antenna_sel = 1;
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if (priv->tx_rx_ant_inv)
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vnt_set_antenna_mode(priv, ANT_RXA);
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else
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vnt_set_antenna_mode(priv, ANT_RXB);
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} else {
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priv->rx_antenna_sel = 0;
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if (priv->tx_rx_ant_inv)
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vnt_set_antenna_mode(priv, ANT_RXB);
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else
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vnt_set_antenna_mode(priv, ANT_RXA);
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}
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break;
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default:
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break;
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}
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vnt_cmd_complete(priv);
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}
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int vnt_schedule_command(struct vnt_private *priv, enum vnt_cmd command)
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{
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if (priv->free_cmd_queue == 0)
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return false;
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priv->cmd_queue[priv->cmd_enqueue_idx] = command;
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ADD_ONE_WITH_WRAP_AROUND(priv->cmd_enqueue_idx, CMD_Q_SIZE);
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priv->free_cmd_queue--;
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if (!priv->cmd_running)
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vnt_cmd_complete(priv);
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return true;
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}
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void vnt_reset_command_timer(struct vnt_private *priv)
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{
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priv->free_cmd_queue = CMD_Q_SIZE;
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priv->cmd_dequeue_idx = 0;
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priv->cmd_enqueue_idx = 0;
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priv->command_state = WLAN_CMD_IDLE;
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priv->cmd_running = false;
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}
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