/*!
* @brief Send notification to host that a response is available.
*
* This function is called to send notification to host that a response is available.
*
* @param handle The pointer the RNDIS device.
* @return A USB error code or kStatus_USB_Success.
*/
usb_status_t USB_DeviceCdcRndisResponseAvailable(usb_device_cdc_rndis_struct_t *handle)
{
usb_device_cdc_acm_struct_t *cdcAcmHandle;
usb_status_t error = kStatus_USB_Error;
if (!handle)
{
return kStatus_USB_InvalidHandle;
}
cdcAcmHandle = (usb_device_cdc_acm_struct_t *)(handle->cdcAcmHandle);
/* update array for current interface */
g_responseAvailableData[4] = cdcAcmHandle->interfaceNumber;
error = USB_DeviceCdcAcmSend((uint32_t)cdcAcmHandle, cdcAcmHandle->interruptIn.ep, g_responseAvailableData,
NOTIF_PACKET_SIZE);
return error;
}
/*!
* @brief CDC class specific callback function.
*
* This function handles the CDC class specific requests.
*
* @param handle The CDC ACM class handle.
* @param event The CDC ACM class event type.
* @param param The parameter of the class specific request.
*
* @return A USB error code or kStatus_USB_Success.
*/
usb_status_t USB_DeviceCdcVcomCallback(class_handle_t handle, uint32_t event, void *param)
{
uint32_t len;
uint16_t *uartBitmap;
usb_device_cdc_acm_request_param_struct_t *acmReqParam;
usb_device_endpoint_callback_message_struct_t *epCbParam;
usb_status_t error = kStatus_USB_Error;
usb_cdc_acm_info_t *acmInfo = &s_usbCdcAcmInfo;
acmReqParam = (usb_device_cdc_acm_request_param_struct_t *)param;
epCbParam = (usb_device_endpoint_callback_message_struct_t *)param;
switch (event)
{
case kUSB_DeviceCdcEventSendResponse:
{
if ((epCbParam->length != 0) && (!(epCbParam->length % g_UsbDeviceCdcVcomDicEndpoints[0].maxPacketSize)))
{
/* If the last packet is the size of endpoint, then send also zero-ended packet,
** meaning that we want to inform the host that we do not have any additional
** data, so it can flush the output.
*/
USB_DeviceCdcAcmSend(handle, USB_CDC_VCOM_BULK_IN_ENDPOINT, NULL, 0);
}
else if ((1 == s_cdcVcom.attach) && (1 == s_cdcVcom.startTransactions))
{
if ((epCbParam->buffer != NULL) || ((epCbParam->buffer == NULL) && (epCbParam->length == 0)))
{
/* User: add your own code for send complete event */
/* Schedule buffer for next receive event */
USB_DeviceCdcAcmRecv(handle, USB_CDC_VCOM_BULK_OUT_ENDPOINT, s_currRecvBuf,
g_UsbDeviceCdcVcomDicEndpoints[0].maxPacketSize);
#if defined(FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED) && (FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED > 0U) && \
defined(USB_DEVICE_CONFIG_KEEP_ALIVE_MODE) && (USB_DEVICE_CONFIG_KEEP_ALIVE_MODE > 0U) && \
defined(FSL_FEATURE_USB_KHCI_USB_RAM) && (FSL_FEATURE_USB_KHCI_USB_RAM > 0U)
s_waitForDataReceive = 1;
USB0->INTEN &= ~USB_INTEN_SOFTOKEN_MASK;
#endif
}
}
else
{
}
}
break;
case kUSB_DeviceCdcEventRecvResponse:
{
if ((1 == s_cdcVcom.attach) && (1 == s_cdcVcom.startTransactions))
{
s_recvSize = epCbParam->length;
#if defined(FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED) && (FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED > 0U) && \
defined(USB_DEVICE_CONFIG_KEEP_ALIVE_MODE) && (USB_DEVICE_CONFIG_KEEP_ALIVE_MODE > 0U) && \
defined(FSL_FEATURE_USB_KHCI_USB_RAM) && (FSL_FEATURE_USB_KHCI_USB_RAM > 0U)
s_waitForDataReceive = 0;
USB0->INTEN |= USB_INTEN_SOFTOKEN_MASK;
#endif
if (!s_recvSize)
{
/* Schedule buffer for next receive event */
USB_DeviceCdcAcmRecv(handle, USB_CDC_VCOM_BULK_OUT_ENDPOINT, s_currRecvBuf,
g_UsbDeviceCdcVcomDicEndpoints[0].maxPacketSize);
#if defined(FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED) && (FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED > 0U) && \
defined(USB_DEVICE_CONFIG_KEEP_ALIVE_MODE) && (USB_DEVICE_CONFIG_KEEP_ALIVE_MODE > 0U) && \
defined(FSL_FEATURE_USB_KHCI_USB_RAM) && (FSL_FEATURE_USB_KHCI_USB_RAM > 0U)
s_waitForDataReceive = 1;
USB0->INTEN &= ~USB_INTEN_SOFTOKEN_MASK;
#endif
}
}
}
break;
case kUSB_DeviceCdcEventSerialStateNotif:
((usb_device_cdc_acm_struct_t *)handle)->hasSentState = 0;
break;
case kUSB_DeviceCdcEventSendEncapsulatedCommand:
break;
case kUSB_DeviceCdcEventGetEncapsulatedResponse:
break;
case kUSB_DeviceCdcEventSetCommFeature:
if (USB_DEVICE_CDC_FEATURE_ABSTRACT_STATE == acmReqParam->setupValue)
{
if (1 == acmReqParam->isSetup)
{
*(acmReqParam->buffer) = s_abstractState;
}
else
{
*(acmReqParam->length) = 0;
}
}
else if (USB_DEVICE_CDC_FEATURE_COUNTRY_SETTING == acmReqParam->setupValue)
{
if (1 == acmReqParam->isSetup)
{
*(acmReqParam->buffer) = s_countryCode;
}
else
{
*(acmReqParam->length) = 0;
}
}
else
{
}
error = kStatus_USB_Success;
break;
case kUSB_DeviceCdcEventGetCommFeature:
if (USB_DEVICE_CDC_FEATURE_ABSTRACT_STATE == acmReqParam->setupValue)
{
*(acmReqParam->buffer) = s_abstractState;
*(acmReqParam->length) = COMM_FEATURE_DATA_SIZE;
}
else if (USB_DEVICE_CDC_FEATURE_COUNTRY_SETTING == acmReqParam->setupValue)
{
*(acmReqParam->buffer) = s_countryCode;
*(acmReqParam->length) = COMM_FEATURE_DATA_SIZE;
}
else
{
}
error = kStatus_USB_Success;
break;
case kUSB_DeviceCdcEventClearCommFeature:
break;
case kUSB_DeviceCdcEventGetLineCoding:
*(acmReqParam->buffer) = s_lineCoding;
*(acmReqParam->length) = LINE_CODING_SIZE;
error = kStatus_USB_Success;
break;
case kUSB_DeviceCdcEventSetLineCoding:
{
if (1 == acmReqParam->isSetup)
{
*(acmReqParam->buffer) = s_lineCoding;
}
else
{
*(acmReqParam->length) = 0;
}
}
error = kStatus_USB_Success;
break;
case kUSB_DeviceCdcEventSetControlLineState:
{
s_usbCdcAcmInfo.dteStatus = acmReqParam->setupValue;
/* activate/deactivate Tx carrier */
if (acmInfo->dteStatus & USB_DEVICE_CDC_CONTROL_SIG_BITMAP_CARRIER_ACTIVATION)
{
acmInfo->uartState |= USB_DEVICE_CDC_UART_STATE_TX_CARRIER;
}
else
{
acmInfo->uartState &= (uint16_t)~USB_DEVICE_CDC_UART_STATE_TX_CARRIER;
}
/* activate carrier and DTE */
if (acmInfo->dteStatus & USB_DEVICE_CDC_CONTROL_SIG_BITMAP_DTE_PRESENCE)
{
acmInfo->uartState |= USB_DEVICE_CDC_UART_STATE_RX_CARRIER;
}
else
{
acmInfo->uartState &= (uint16_t)~USB_DEVICE_CDC_UART_STATE_RX_CARRIER;
}
/* Indicates to DCE if DTE is present or not */
acmInfo->dtePresent = (acmInfo->dteStatus & USB_DEVICE_CDC_CONTROL_SIG_BITMAP_DTE_PRESENCE) ? true : false;
/* Initialize the serial state buffer */
acmInfo->serialStateBuf[0] = NOTIF_REQUEST_TYPE; /* bmRequestType */
acmInfo->serialStateBuf[1] = USB_DEVICE_CDC_NOTIF_SERIAL_STATE; /* bNotification */
acmInfo->serialStateBuf[2] = 0x00; /* wValue */
acmInfo->serialStateBuf[3] = 0x00;
acmInfo->serialStateBuf[4] = 0x00; /* wIndex */
acmInfo->serialStateBuf[5] = 0x00;
acmInfo->serialStateBuf[6] = UART_BITMAP_SIZE; /* wLength */
acmInfo->serialStateBuf[7] = 0x00;
/* Notifiy to host the line state */
acmInfo->serialStateBuf[4] = acmReqParam->interfaceIndex;
/* Lower byte of UART BITMAP */
uartBitmap = (uint16_t *)&acmInfo->serialStateBuf[NOTIF_PACKET_SIZE + UART_BITMAP_SIZE - 2];
*uartBitmap = acmInfo->uartState;
len = (uint32_t)(NOTIF_PACKET_SIZE + UART_BITMAP_SIZE);
if (0 == ((usb_device_cdc_acm_struct_t *)handle)->hasSentState)
{
error = USB_DeviceCdcAcmSend(handle, USB_CDC_VCOM_INTERRUPT_IN_ENDPOINT, acmInfo->serialStateBuf, len);
if (kStatus_USB_Success != error)
{
usb_echo("kUSB_DeviceCdcEventSetControlLineState error!");
}
((usb_device_cdc_acm_struct_t *)handle)->hasSentState = 1;
}
/* Update status */
if (acmInfo->dteStatus & USB_DEVICE_CDC_CONTROL_SIG_BITMAP_CARRIER_ACTIVATION)
{
/* To do: CARRIER_ACTIVATED */
}
else
{
/* To do: CARRIER_DEACTIVATED */
}
if (acmInfo->dteStatus & USB_DEVICE_CDC_CONTROL_SIG_BITMAP_DTE_PRESENCE)
{
/* DTE_ACTIVATED */
if (1 == s_cdcVcom.attach)
{
s_cdcVcom.startTransactions = 1;
#if defined(FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED) && (FSL_FEATURE_USB_KHCI_KEEP_ALIVE_ENABLED > 0U) && \
defined(USB_DEVICE_CONFIG_KEEP_ALIVE_MODE) && (USB_DEVICE_CONFIG_KEEP_ALIVE_MODE > 0U) && \
defined(FSL_FEATURE_USB_KHCI_USB_RAM) && (FSL_FEATURE_USB_KHCI_USB_RAM > 0U)
s_waitForDataReceive = 1;
USB0->INTEN &= ~USB_INTEN_SOFTOKEN_MASK;
s_comOpen = 1;
usb_echo("USB_APP_CDC_DTE_ACTIVATED\r\n");
#endif
}
}
else
{
/* DTE_DEACTIVATED */
if (1 == s_cdcVcom.attach)
{
s_cdcVcom.startTransactions = 0;
}
}
}
break;
case kUSB_DeviceCdcEventSendBreak:
break;
default:
break;
}
return error;
}