int rt2x00lib_start(struct rt2x00_dev *rt2x00dev)
{
int retval;
if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
return 0;
/*
* If this is the first interface which is added,
* we should load the firmware now.
*/
retval = rt2x00lib_load_firmware(rt2x00dev);
if (retval)
return retval;
/*
* Initialize the device.
*/
retval = rt2x00lib_initialize(rt2x00dev);
if (retval)
return retval;
rt2x00dev->intf_ap_count = 0;
rt2x00dev->intf_sta_count = 0;
rt2x00dev->intf_associated = 0;
/* Enable the radio */
retval = rt2x00lib_enable_radio(rt2x00dev);
if (retval)
return retval;
set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags);
return 0;
}
int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
int force_reconfig;
/*
* Mac80211 might be calling this function while we are trying
* to remove the device or perhaps suspending it.
*/
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
return 0;
/*
* Check if we need to disable the radio,
* if this is not the case, at least the RX must be disabled.
*/
if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) {
if (!conf->radio_enabled)
rt2x00lib_disable_radio(rt2x00dev);
else
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
}
/*
* When the DEVICE_DIRTY_CONFIG flag is set, the device has recently
* been started and the configuration must be forced upon the hardware.
* Otherwise registers will not be intialized correctly and could
* result in non-working hardware because essential registers aren't
* initialized.
*/
force_reconfig =
__test_and_clear_bit(DEVICE_DIRTY_CONFIG, &rt2x00dev->flags);
rt2x00lib_config(rt2x00dev, conf, force_reconfig);
/*
* Reenable RX only if the radio should be on.
*/
if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
else if (conf->radio_enabled)
return rt2x00lib_enable_radio(rt2x00dev);
return 0;
}
int rt2x00mac_start(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
int status;
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) ||
test_bit(DEVICE_STARTED, &rt2x00dev->flags))
return 0;
/*
* If this is the first interface which is added,
* we should load the firmware now.
*/
if (test_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags)) {
status = rt2x00lib_load_firmware(rt2x00dev);
if (status)
return status;
}
/*
* Initialize the device.
*/
status = rt2x00lib_initialize(rt2x00dev);
if (status)
return status;
/*
* Enable radio.
*/
status = rt2x00lib_enable_radio(rt2x00dev);
if (status) {
rt2x00lib_uninitialize(rt2x00dev);
return status;
}
__set_bit(DEVICE_STARTED, &rt2x00dev->flags);
return 0;
}
