/******************************************************************************
*
* @name USB_App_Callback
*
* @brief This function handles Class callback
*
* @param controller_ID : Controller ID
* @param event_type : Value of the event
* @param val : gives the configuration value
*
* @return None
*
*****************************************************************************
* This function is called from the class layer whenever reset occurs or enum
* is completed. After the enum is completed this function sets a variable so
* that the application can start.
* This function also receives DATA Send and RECEIVED Events
*****************************************************************************/
static void USB_App_Callback (
uint_8 controller_ID, /* [IN] Controller ID */
uint_8 event_type, /* [IN] value of the event */
void* val /* [IN] gives the configuration value */
)
{
static APP_DATA_STRUCT* data_receive;
if(event_type == USB_APP_BUS_RESET)
{
start_app=FALSE;
}
else if(event_type == USB_APP_ENUM_COMPLETE)
{
start_app=TRUE;
#if (!(defined _MC9S08JS16_H))
(void)printf("Audio Speaker is working ... \r\n");
#endif
#ifdef USE_FEEDBACK_ENDPOINT
// Send initial rate control feedback (48Khz)
USB_Class_Audio_Send_Data(controller_ID, AUDIO_FEEDBACK_ENDPOINT,
(uint_8_ptr)&feedback_data, AUDIO_FEEDBACK_ENDPOINT_PACKET_SIZE);
#endif // USE_FEEDBACK_ENDPOINT
#if HIGH_SPEED_DEVICE
// Start by receiving data to audio buffer
USB_Class_Audio_Recv_Data(controller_ID, AUDIO_ENDPOINT,
(uint_8_ptr) g_curr_recv_buf, AUDIO_ENDPOINT_PACKET_SIZE);
#endif
}
else if ((event_type == USB_APP_DATA_RECEIVED) && (TRUE == start_app))
{
(void)USB_Class_Audio_Recv_Data(controller_ID, AUDIO_ENDPOINT,
(uint_8_ptr)g_curr_recv_buf, AUDIO_ENDPOINT_PACKET_SIZE);
audio_event = USB_APP_DATA_RECEIVED;
data_receive = (APP_DATA_STRUCT*)val;
(void)memcpy(audio_data_recv, data_receive->data_ptr, data_receive->data_size);
/*for(i=0;i<data_receive->data_size;i++){
audio_data_recv[i] = data_receive->data_ptr[i];
}*/
}
#ifdef USE_FEEDBACK_ENDPOINT
else if((event_type == USB_APP_SEND_COMPLETE) && (TRUE == start_app))
{
feedback_data <<= 14; // 10.14 format
(void)USB_Class_Audio_Send_Data(controller_ID,
AUDIO_FEEDBACK_ENDPOINT,
(uint_8_ptr)&feedback_data,
AUDIO_FEEDBACK_ENDPOINT_PACKET_SIZE);
}
#endif
return;
}
/******************************************************************************
*
* @name TestApp_Task
*
* @brief Application task function. It is called from the main loop
*
* @param None
*
* @return None
*
*****************************************************************************
* Application task function. It is called from the main loop
*****************************************************************************/
void TestApp_Task(void)
{
#ifdef USE_FEEDBACK_ENDPOINT
if((start_app == TRUE) && (start_send == TRUE))
{
start_send = FALSE;
feedback_data = 8<<14; // 10.14 format (8 bytes/frame)
(void)USB_Class_Audio_Send_Data(CONTROLLER_ID,
2,
(uint_8_ptr)&feedback_data,
3);
}
#endif
}
/*****************************************************************************
*
* @name TestApp_Init
*
* @brief This function is the entry for Audio generator
*
* @param None
*
* @return None
**
*****************************************************************************/
void Audio_TestApp_Init(void)
{
#if (OS_ADAPTER_ACTIVE_OS == OS_ADAPTER_MQX)
wav_buff = OS_Mem_alloc_uncached_align(AUDIO_ENDPOINT_PACKET_SIZE, 32);
if(wav_buff == NULL)
{
printf("OS_Mem_alloc_uncached_align fail in audio composite example \r\n");
return ;
}
#endif
while(TRUE)
{
while(!start_app)
{
OS_Time_delay(1);
;
}
start_app = FALSE;
printf("USB_Prepare_Data \r\n");
USB_Prepare_Data();
USB_Class_Audio_Send_Data(g_audio_handle, AUDIO_ENDPOINT, wav_buff, AUDIO_ENDPOINT_PACKET_SIZE);
}
}
