2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
18 * Purpose: Handles the management command interface functions
25 * vnt_cmd_complete - Command Complete function
26 * vnt_schedule_command - Push Command and wait Command Scheduler to do
27 * vnt_cmd_timer_wait- Call back timer
41 static void vnt_cmd_timer_wait(struct vnt_private *priv, unsigned long msecs)
43 schedule_delayed_work(&priv->run_command_work, msecs_to_jiffies(msecs));
46 static int vnt_cmd_complete(struct vnt_private *priv)
49 priv->command_state = WLAN_CMD_IDLE;
50 if (priv->free_cmd_queue == CMD_Q_SIZE) {
51 /* Command Queue Empty */
52 priv->cmd_running = false;
56 priv->command = priv->cmd_queue[priv->cmd_dequeue_idx];
58 ADD_ONE_WITH_WRAP_AROUND(priv->cmd_dequeue_idx, CMD_Q_SIZE);
59 priv->free_cmd_queue++;
60 priv->cmd_running = true;
62 switch (priv->command) {
63 case WLAN_CMD_INIT_MAC80211:
64 priv->command_state = WLAN_CMD_INIT_MAC80211_START;
67 case WLAN_CMD_TBTT_WAKEUP:
68 priv->command_state = WLAN_CMD_TBTT_WAKEUP_START;
71 case WLAN_CMD_BECON_SEND:
72 priv->command_state = WLAN_CMD_BECON_SEND_START;
75 case WLAN_CMD_SETPOWER:
76 priv->command_state = WLAN_CMD_SETPOWER_START;
79 case WLAN_CMD_CHANGE_ANTENNA:
80 priv->command_state = WLAN_CMD_CHANGE_ANTENNA_START;
87 vnt_cmd_timer_wait(priv, 0);
92 void vnt_run_command(struct work_struct *work)
94 struct vnt_private *priv =
95 container_of(work, struct vnt_private, run_command_work.work);
97 if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
100 if (!priv->cmd_running)
103 switch (priv->command_state) {
104 case WLAN_CMD_INIT_MAC80211_START:
108 dev_info(&priv->usb->dev, "Starting mac80211\n");
110 if (vnt_init(priv)) {
111 /* If fail all ends TODO retry */
112 dev_err(&priv->usb->dev, "failed to start\n");
113 usb_set_intfdata(priv->intf, NULL);
114 ieee80211_free_hw(priv->hw);
120 case WLAN_CMD_TBTT_WAKEUP_START:
121 vnt_next_tbtt_wakeup(priv);
124 case WLAN_CMD_BECON_SEND_START:
128 vnt_beacon_make(priv, priv->vif);
130 vnt_mac_reg_bits_on(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
134 case WLAN_CMD_SETPOWER_START:
136 vnt_rf_setpower(priv, priv->current_rate,
137 priv->hw->conf.chandef.chan->hw_value);
141 case WLAN_CMD_CHANGE_ANTENNA_START:
142 dev_dbg(&priv->usb->dev, "Change from Antenna%d to",
143 priv->rx_antenna_sel);
145 if (priv->rx_antenna_sel == 0) {
146 priv->rx_antenna_sel = 1;
147 if (priv->tx_rx_ant_inv)
148 vnt_set_antenna_mode(priv, ANT_RXA);
150 vnt_set_antenna_mode(priv, ANT_RXB);
152 priv->rx_antenna_sel = 0;
153 if (priv->tx_rx_ant_inv)
154 vnt_set_antenna_mode(priv, ANT_RXB);
156 vnt_set_antenna_mode(priv, ANT_RXA);
164 vnt_cmd_complete(priv);
167 int vnt_schedule_command(struct vnt_private *priv, enum vnt_cmd command)
170 if (priv->free_cmd_queue == 0)
173 priv->cmd_queue[priv->cmd_enqueue_idx] = command;
175 ADD_ONE_WITH_WRAP_AROUND(priv->cmd_enqueue_idx, CMD_Q_SIZE);
176 priv->free_cmd_queue--;
178 if (!priv->cmd_running)
179 vnt_cmd_complete(priv);
185 void vnt_reset_command_timer(struct vnt_private *priv)
187 priv->free_cmd_queue = CMD_Q_SIZE;
188 priv->cmd_dequeue_idx = 0;
189 priv->cmd_enqueue_idx = 0;
190 priv->command_state = WLAN_CMD_IDLE;
191 priv->cmd_running = false;