/*
 * Initial AR9462 / (WB222) bluetooth coexistence settings,
 * just for experimentation.
 *
 * Return 0 for OK; errno for error.
 */
static int
ath_btcoex_cfg_wb222(struct ath_softc *sc)
{
	HAL_BT_COEX_INFO btinfo;
	HAL_BT_COEX_CONFIG btconfig;
	struct ath_hal *ah = sc->sc_ah;

	if (! ath_hal_btcoex_supported(ah))
		return (EINVAL);

	bzero(&btinfo, sizeof(btinfo));
	bzero(&btconfig, sizeof(btconfig));

	device_printf(sc->sc_dev, "Enabling WB222 BTCOEX\n");

	btinfo.bt_module = HAL_BT_MODULE_JANUS;	/* XXX not used? */
	btinfo.bt_coex_config = HAL_BT_COEX_CFG_MCI;

	/*
	 * MCI uses a completely different interface to speak
	 * to the bluetooth module - it's a command based
	 * thing over a serial line, rather than
	 * state pins to/from the bluetooth module.
	 *
	 * So, the GPIO configuration, polarity, etc
	 * doesn't matter on MCI devices; it's just
	 * completely ignored by the HAL.
	 */
	btinfo.bt_gpio_bt_active = 4;
	btinfo.bt_gpio_bt_priority = 8;
	btinfo.bt_gpio_wlan_active = 5;

	btinfo.bt_active_polarity = 1;	/* XXX not used */
	btinfo.bt_single_ant = 0;	/* 2 antenna on WB222 */
	btinfo.bt_isolation = 0;	/* in dB, not used */

	ath_hal_btcoex_set_info(ah, &btinfo);

	btconfig.bt_time_extend = 0;
	btconfig.bt_txstate_extend = 1;	/* true */
	btconfig.bt_txframe_extend = 1;	/* true */
	btconfig.bt_mode = HAL_BT_COEX_MODE_SLOTTED;
	btconfig.bt_quiet_collision = 1;	/* true */
	btconfig.bt_rxclear_polarity = 1;	/* true */
	btconfig.bt_priority_time = 2;
	btconfig.bt_first_slot_time = 5;
	btconfig.bt_hold_rxclear = 1;	/* true */

	ath_hal_btcoex_set_config(ah, &btconfig);

	/*
	 * Enable antenna diversity.
	 */
	ath_hal_btcoex_set_parameter(ah, HAL_BT_COEX_ANTENNA_DIVERSITY, 1);

	return (0);
}
/*
 * Initial AR9485 / (WB225) bluetooth coexistence settings,
 * just for experimentation.
 *
 * Return 0 for OK; errno for error.
 */
static int
ath_btcoex_cfg_wb225(struct ath_softc *sc)
{
	HAL_BT_COEX_INFO btinfo;
	HAL_BT_COEX_CONFIG btconfig;
	struct ath_hal *ah = sc->sc_ah;

	if (! ath_hal_btcoex_supported(ah))
		return (EINVAL);

	bzero(&btinfo, sizeof(btinfo));
	bzero(&btconfig, sizeof(btconfig));

	device_printf(sc->sc_dev, "Enabling WB225 BTCOEX\n");

	btinfo.bt_module = HAL_BT_MODULE_JANUS;	/* XXX not used? */
	btinfo.bt_coex_config = HAL_BT_COEX_CFG_3WIRE;
	/*
	 * These are the three GPIO pins hooked up between the AR9485 and
	 * the bluetooth module.
	 */
	btinfo.bt_gpio_bt_active = 4;
	btinfo.bt_gpio_bt_priority = 8;
	btinfo.bt_gpio_wlan_active = 5;

	btinfo.bt_active_polarity = 1;	/* XXX not used */
	btinfo.bt_single_ant = 1;	/* 1 antenna on ar9285 ? */
	btinfo.bt_isolation = 0;	/* in dB, not used */

	ath_hal_btcoex_set_info(ah, &btinfo);

	btconfig.bt_time_extend = 0;
	btconfig.bt_txstate_extend = 1;	/* true */
	btconfig.bt_txframe_extend = 1;	/* true */
	btconfig.bt_mode = HAL_BT_COEX_MODE_SLOTTED;
	btconfig.bt_quiet_collision = 1;	/* true */
	btconfig.bt_rxclear_polarity = 1;	/* true */
	btconfig.bt_priority_time = 2;
	btconfig.bt_first_slot_time = 5;
	btconfig.bt_hold_rxclear = 1;	/* true */

	ath_hal_btcoex_set_config(ah, &btconfig);

	/*
	 * Enable antenna diversity.
	 */
	ath_hal_btcoex_set_parameter(ah, HAL_BT_COEX_ANTENNA_DIVERSITY, 1);

	return (0);
}