/******************************************************************************
*
* @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;
}
void TestApp_Init(void)
{
AUDIO_CONFIG_STRUCT audio_config;
USB_CLASS_AUDIO_ENDPOINT * endPoint_ptr;
/* Pointer to audio endpoint entry */
endPoint_ptr = USB_mem_alloc_zero(sizeof(USB_CLASS_AUDIO_ENDPOINT)*AUDIO_DESC_ENDPOINT_COUNT);
/* USB descriptor endpoint */
audio_config.usb_ep_data = &usb_desc_ep;
/* USB audio unit */
audio_config.usb_ut_data = &usb_audio_unit;
/* Endpoint count */
audio_config.desc_endpoint_cnt = AUDIO_DESC_ENDPOINT_COUNT;
/* Application callback */
audio_config.audio_class_callback.callback = USB_App_Callback;
/* Application callback argurment */
audio_config.audio_class_callback.arg = &g_app_handle;
/* Vendor callback */
audio_config.vendor_req_callback.callback = NULL;
/* Vendor callback argurment */
audio_config.vendor_req_callback.arg = NULL;
/* Param callback function */
audio_config.param_callback.callback = USB_Notif_Callback;
/* Param callback argurment */
audio_config.param_callback.arg = &g_app_handle;
/* Memory param callback */
audio_config.mem_param_callback.callback = NULL;
/* Memory param callback argurment */
audio_config.mem_param_callback.arg = &g_app_handle;
/* Descriptor callback pointer */
audio_config.desc_callback_ptr = &desc_callback;
/* Audio enpoint pointer */
audio_config.ep = endPoint_ptr;
/* Initialize timer module */
// audio_timer_init();
// _audio_timer_init_freq(AUDIO_TIMER, AUDIO_TIMER_CHANNEL, AUDIO_SPEAKER_FREQUENCY, AUDIO_TIMER_CLOCK, TRUE);
if (MQX_OK != _usb_device_driver_install(USBCFG_DEFAULT_DEVICE_CONTROLLER)) {
printf("Driver could not be installed\n");
return;
}
/* Initialize the USB interface */
g_app_handle = USB_Class_Audio_Init(&audio_config);
if (MQX_OK != _lwevent_create(&app_event, LWEVENT_AUTO_CLEAR)) {
printf("\n_lwevent_create app_event failed.\n");
_task_block();
}
if (MQX_OK != _lwevent_wait_ticks(&app_event, USB_APP_ENUM_COMPLETE_EVENT_MASK, FALSE, 0)) {
printf("\n_lwevent_wait_ticks app_event failed.\n");
_task_block();
}
if (MQX_OK != _lwevent_clear(&app_event, USB_APP_ENUM_COMPLETE_EVENT_MASK)) {
printf("\n_lwevent_clear app_event failed.\n");
_task_block();
}
printf("Audio speaker is working ... \r\n");
/* Prepare buffer for first isochronous input */
USB_Class_Audio_Recv_Data(g_app_handle,AUDIO_ISOCHRONOUS_ENDPOINT,
audio_data_buff0, DATA_BUFF_SIZE);
_task_block();
}
