/******************************************************************************
* @name AUDIO_TIMER_ISR
*
* @brief This routine services RTC Interrupt
*
* @param None
*
* @return None
*
******************************************************************************
* Services Programmable Interrupt Timer 0. If a Timer Object expires, then
* removes the object from Timer Queue and Calls the callback function
* (if registered)
*****************************************************************************/
static void AUDIO_TIMER_ISR(void)
{
_audio_clear_int(AUDIO_TIMER);
if (USB_DEVICE_INTERFACED == audio_stream.DEV_STATE)
{
/* the attached device is microphone */
if(OUT_DEVICE == device_direction)
{
/* Recv data */
usb_audio_recv_data(
(CLASS_CALL_STRUCT_PTR)&audio_control.CLASS_INTF,
(CLASS_CALL_STRUCT_PTR)&audio_stream.CLASS_INTF,
usb_host_audio_tr_callback,
NULL, packet_size,
(uchar_ptr)wav_recv_buff
);
}
}
#if (defined BSP_TWR_K40X256) || (defined BSP_TWR_K60N512) ||\
(defined BSP_TWR_K53N512) || (defined BSP_TWR_K70F120M) ||\
(defined BSP_KWIKSTIK_K40X256) || (defined BSP_TWR_K60F120M)
(defined BSP_TWR_K60D100M)
/* Enable PIT interrupt neeed due to errata on Kinetis PIT */
PIT_TCTRL_REG(PIT_BASE_PTR,AUDIO_TIMER) |= PIT_TCTRL_TIE_MASK;
#endif
}
/******************************************************************************
* @name PIT0_ISR
*
* @brief This routine services RTC Interrupt
*
* @param None
*
* @return None
*
******************************************************************************
* Services Programmable Interrupt Timer 0. If a Timer Object expires, then
* removes the object from Timer Queue and Calls the callback function
* (if registered)
*****************************************************************************/
void AUDIO_TIMER_ISR(void)
{
#if (defined BSP_M52259DEMO) || (defined BSP_M52259EVB) || (defined BSP_TWRMCF52259) || ((defined BSP_M52223EVB))\
|| (defined BSP_TWRMCF54418)
_pit_clear_int(BSP_LAST_TIMER);
#endif
#if(defined BSP_TWRMCF51JE)||(defined BSP_TWRMCF51MM)||(defined BSP_MCF51JMEVB)
ClearCmtInterrupt();
#endif
#if (defined BSP_TWRMCF51JF)
ClearFTM0Interrupt();
#endif
#if (defined BSP_TWR_K40X256) || (defined BSP_TWR_K60N512) || (defined BSP_TWR_K53N512)
_kinetis_timer_clear_int(BSP_LAST_TIMER);
#endif
if (USB_DEVICE_INTERFACED == audio_stream.DEV_STATE)
{
/* Check device type */
if(IN_DEVICE == device_direction)
{
/* For speaker */
/* Send data */
usb_audio_send_data((CLASS_CALL_STRUCT_PTR)&audio_control.CLASS_INTF,
(CLASS_CALL_STRUCT_PTR)&audio_stream.CLASS_INTF, usb_host_audio_tr_callback,
NULL, packet_size, (uchar_ptr)wav_buff);
}
else
{
/* For microphone */
if((packet_size-1) < audio_sample)
{
audio_sample = 0;
/* Recv data */
usb_audio_recv_data((CLASS_CALL_STRUCT_PTR)&audio_control.CLASS_INTF,
(CLASS_CALL_STRUCT_PTR)&audio_stream.CLASS_INTF, usb_host_audio_tr_callback,
NULL, packet_size*resolution_size, (uchar_ptr)wav_recv_buff);
}
else
{
/* Check packet is sent completely */
if(trCallBack)
{
trCallBack=FALSE;
/* update duty */
*duty = wav_recv_buff_tmp[audio_sample];
}
}
audio_sample+=sample_out;
}
}
#if (defined BSP_TWR_K40X256) || (defined BSP_TWR_K60N512) || (defined BSP_TWR_K53N512)
/* Enable PIT interrupt neeed due to errata on Kinetis PIT */
PIT_TCTRL_REG(PIT_BASE_PTR,1)|= PIT_TCTRL_TIE_MASK;
#endif
}
