/* data interface reset function, enable EP*/
void USB_Acm_DataIf_Reset(void)
{
g_UsbACM.txpipe = &g_UsbACM.data_ep_in_info->ep_status.epin_status;
g_UsbACM.rxpipe = &g_UsbACM.data_ep_out_info->ep_status.epout_status;
/*DMA*/
USB_TxEPEn(g_UsbACM.data_ep_in_info->ep_status.epin_status.byEP, KAL_TRUE);
/*Non-DMA*/
USB_RxEPEn(g_UsbACM.data_ep_out_info->ep_status.epout_status.byEP, KAL_FALSE);
if((g_UsbACM.send_UARTilm == KAL_TRUE)&&(USB2UARTPort.ownerid != MOD_DRV_HISR))
{
g_UsbACM.send_UARTilm = KAL_FALSE;
USB_Send_Msg(USB_SEND_MSG_UART_PLUG_OUT, 0, KAL_TRUE);
}
}
/* open USB2UART port , actually port is no use because only support one USB port */
static kal_bool USB2UART_open(UART_PORT port, module_type owner)
{
#ifndef __USB_ENABLE__
ASSERT(0);
#endif
if(g_UsbACM.acm_owner == USB_ACM_OWNER_DSP)
{
ASSERT(0);
}
if(g_UsbACM.acm_owner == USB_ACM_OWNER_FT)
{
#ifdef __USB_DOWNLOAD__
if(gUsbDevice.is_usb_download_mode == KAL_FALSE)
ASSERT(0);
#else
ASSERT(0);
#endif
}
/* It cannot be opened if uart owner did not close it before */
if(USB2UARTPort.ownerid != MOD_DRV_HISR)
{
return KAL_FALSE;
}
#ifndef __PRODUCTION_RELEASE__
if(INT_Exception_Enter != 0)
{
drv_trace0(TRACE_FUNC, USBACM_OPEN);
// kal_prompt_trace(MOD_USB, "USB Open");
}
#endif /* __PRODUCTION_RELEASE__ */
USB2UARTPort.initialized = KAL_TRUE;
USB2UARTPort.ownerid = owner;
g_UsbACM.send_Txilm = KAL_FALSE;
g_UsbACM.send_Rxilm = KAL_TRUE;
if(INT_Exception_Enter != 0)
{
drv_trace1(TRACE_FUNC, USBACM_OPEN_READY_TO_READ_FLAG, owner);
// kal_prompt_trace(MOD_USB, "open RDY R %d", owner);
}
g_UsbACM.config_send_Txilm = KAL_FALSE;
g_UsbACM.threshold_enable = KAL_FALSE;
if( (USB2UARTPort.RingBuffers.rx_buffer==NULL) || (USB2UARTPort.RingBuffers.tx_buffer==NULL) ||
(USB2UARTPort.RingBuffers.txISR_buffer==NULL) )
{
EXT_ASSERT(0, (kal_uint32)USB2UARTPort.RingBuffers.rx_buffer, (kal_uint32)USB2UARTPort.RingBuffers.tx_buffer,
(kal_uint32)USB2UARTPort.RingBuffers.txISR_buffer);
}
Buf_init(&(USB2UARTPort.Rx_Buffer),(kal_uint8 *)(USB2UARTPort.RingBuffers.rx_buffer),
g_UsbACM.acm_param->rx_ringbuff_size);
Buf_init(&(USB2UARTPort.Tx_Buffer),(kal_uint8 *)(USB2UARTPort.RingBuffers.tx_buffer),
g_UsbACM.acm_param->tx_ringbuff_size);
Buf_init(&(USB2UARTPort.Tx_Buffer_ISR),(kal_uint8 *)(USB2UARTPort.RingBuffers.txISR_buffer),
g_UsbACM.acm_param->txisr_ringbuff_size);
if(g_UsbACM.ring_buffer_timer_counting == KAL_TRUE)
{
GPTI_StopItem(g_UsbACM.ring_buffer_handle);
g_UsbACM.ring_buffer_timer_counting = KAL_FALSE;
}
if ((gUsbDevice.device_type == USB_CDC_ACM)&&(gUsbDevice.nDevState==DEVSTATE_CONFIG))
{
/* Only out EP needs to be enabled since IN EP will use DMA polling*/
USB_TxEPEn(g_UsbACM.txpipe->byEP, KAL_TRUE);
USB_RxEPEn(g_UsbACM.rxpipe->byEP, KAL_FALSE);
USB_Set_UnMask_Irq(KAL_TRUE);
}
return KAL_TRUE;
}
