/*!
* @brief This utility function sets the audio mode in Atlas and stereo emu headset
* pull up.
*
* @param mode - The headset mode
*
*/
void emu_util_set_emu_headset_mode(MOTO_ACCY_HEADSET_MODE_T mode)
{
switch(mode)
{
case MOTO_ACCY_HEADSET_MODE_NONE:
EMU_SET_REVERSE_MODE(false);
/* Don't allow power management to suspend the phone while waiting for VBUS to settle. */
power_ic_pm_suspend_mask_tbl[POWER_IC_PM_MISC_SLEEPS] |= POWER_IC_EMU_REV_MODE_SLEEP;
/* mdelay must be used here because the delay cannot be allowed to be longer than 20 ms. */
mdelay(12);
power_ic_pm_suspend_mask_tbl[POWER_IC_PM_MISC_SLEEPS] &= ~(POWER_IC_EMU_REV_MODE_SLEEP);
EMU_SET_EMU_CONN_MODE(POWER_IC_EMU_CONN_MODE_USB);
EMU_SET_HEADSET_PULL_UP(0);
/*Following is the work around for the emu headset send/end key*/
EMU_SET_HS_SEND_END_REGS(1);
EMU_SET_VUSB_INPUT_SOURCE(EMU_VREG_IN_VINBUS);
break;
case MOTO_ACCY_HEADSET_MODE_MONO:
EMU_SET_VUSB_INPUT_SOURCE(EMU_VREG_IN_BPLUS);
EMU_SET_HS_SEND_END_REGS(0);
EMU_SET_EMU_CONN_MODE(POWER_IC_EMU_CONN_MODE_MONO_AUDIO);
EMU_SET_HEADSET_PULL_UP(0);
/* Don't allow power management to suspend the phone while waiting for D- to settle */
power_ic_pm_suspend_mask_tbl[POWER_IC_PM_MISC_SLEEPS] |= POWER_IC_EMU_DMINUS_MONO_SLEEP;
msleep(10);
power_ic_pm_suspend_mask_tbl[POWER_IC_PM_MISC_SLEEPS] &= ~(POWER_IC_EMU_DMINUS_MONO_SLEEP);
EMU_SET_REVERSE_MODE(true);
break;
case MOTO_ACCY_HEADSET_MODE_STEREO:
EMU_SET_VUSB_INPUT_SOURCE(EMU_VREG_IN_BPLUS);
EMU_SET_HS_SEND_END_REGS(0);
EMU_SET_EMU_CONN_MODE(POWER_IC_EMU_CONN_MODE_STEREO_AUDIO);
EMU_SET_HEADSET_PULL_UP(1);
/* Don't allow power management to suspend the phone while waiting for D- to settle */
power_ic_pm_suspend_mask_tbl[POWER_IC_PM_MISC_SLEEPS] |= POWER_IC_EMU_DMINUS_STEREO_SLEEP;
msleep(10);
power_ic_pm_suspend_mask_tbl[POWER_IC_PM_MISC_SLEEPS] &= ~(POWER_IC_EMU_DMINUS_STEREO_SLEEP);
EMU_SET_REVERSE_MODE(true);
break;
default:
tracemsg(_k_d("EMU: Audio Mode %d not supported"), mode);
}
}
/*!
* @brief Used to determine what type of PPD this is initially.
*
* The event handler function reads the state of the D+ and D- lines to determine
* what type of accessory is connected. The state is then changed to the
* Connected state along with an indication of the identification of the accessory.
*
* @param polling_interval a return parameter that holds the "polling rate"
*
* @return next_state tells the state machine what the next EMU state is
*/
EMU_STATE_T pre_ppd_identify_handler(int *polling_interval)
{
*polling_interval = EMU_POLL_CONTINUE;
switch (get_bus_state(EMU_BUS_SIGNAL_DP_DM))
{
case EMU_BUS_SIGNAL_STATE_DP_DM_10:
tracemsg(_k_d("Set the GPIO for ST headset"));
EMU_SET_HEADSET_PULL_UP(ENABLE);
return EMU_STATE_CONNECTING__PPD_IDENTIFY;
break;
case EMU_BUS_SIGNAL_STATE_DP_DM_00:
case EMU_BUS_SIGNAL_STATE_DP_DM_01:
case EMU_BUS_SIGNAL_STATE_DP_DM_11:
default:
emu_current_device = MOTO_ACCY_TYPE_NOT_SUPPORTED;
return EMU_STATE_CONNECTED__NOT_SUPPORTED;
break;
}
}
