static inline uint8_t usbd_cdc_transfer(void *pdev)
{
if (sended != 0 || rndis_tx_ptr == NULL || rndis_tx_size <= 0) return USBD_OK;
if (rndis_first_tx)
{
static uint8_t first[RNDIS_DATA_IN_SZ];
rndis_data_packet_t *hdr;
hdr = (rndis_data_packet_t *)first;
memset(hdr, 0, sizeof(rndis_data_packet_t));
hdr->MessageType = REMOTE_NDIS_PACKET_MSG;
hdr->MessageLength = sizeof(rndis_data_packet_t) + rndis_tx_size;
hdr->DataOffset = sizeof(rndis_data_packet_t) - offsetof(rndis_data_packet_t, DataOffset);
hdr->DataLength = rndis_tx_size;
sended = RNDIS_DATA_IN_SZ - sizeof(rndis_data_packet_t);
if (sended > rndis_tx_size) sended = rndis_tx_size;
memcpy(first + sizeof(rndis_data_packet_t), rndis_tx_ptr, sended);
DCD_EP_Tx(pdev, RNDIS_DATA_IN_EP, (uint8_t *)&first, sizeof(rndis_data_packet_t) + sended);
}
else
{
int n = rndis_tx_size;
if (n > RNDIS_DATA_IN_SZ) n = RNDIS_DATA_IN_SZ;
DCD_EP_Tx(pdev, RNDIS_DATA_IN_EP, rndis_tx_ptr, n);
sended = n;
}
return USBD_OK;
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
(void)pdev;
(void)epnum;
uint16_t USB_Tx_ptr;
uint16_t USB_Tx_length;
if (USB_Tx_State == USB_CDC_BUSY)
{
if (APP_Rx_length == 0)
{
USB_Tx_State = USB_CDC_IDLE;
}
else
{
if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE){
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
if(USB_Tx_length == CDC_DATA_IN_PACKET_SIZE)
{
USB_Tx_State = USB_CDC_ZLP;
}
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
return USBD_OK;
}
}
/* Avoid any asynchronous transfer during ZLP */
if (USB_Tx_State == USB_CDC_ZLP)
{
/*Send ZLP to indicate the end of the current transfer */
DCD_EP_Tx (pdev,
CDC_IN_EP,
NULL,
0);
USB_Tx_State = USB_CDC_IDLE;
}
return USBD_OK;
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
uint16_t USB_Tx_ptr;
uint16_t USB_Tx_length;
if (USB_Tx_State == 1)
{
if (APP_Rx_length == 0)
{
if (last_packet ==1)
{
last_packet =0;
/*Send zero-length packet*/
DCD_EP_Tx (pdev, CDC_IN_EP, 0, 0);
}
else
{
USB_Tx_State = 0;
}
}
else
{
if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE){
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
if (APP_Rx_length == CDC_DATA_IN_PACKET_SIZE) last_packet = 1;
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
}
}
return USBD_OK;
}
/**
* @brief USBD_CDC_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t USBD_CDC_DataIn (void *pdev, uint8_t epnum)
{
uint16_t i;
if (USBD_CDC_InFlight != 0) {
USBD_CDC_InFlight = 0;
}
if (ringbuffer_isempty(&USBD_CDC_D2H_FIFO) == 0)
{
for (i = 0; i < CDC_DATA_IN_PACKET_SIZE && ringbuffer_isempty(&USBD_CDC_D2H_FIFO) == 0; i++) {
USBD_CDC_D2H_Buff[i] = ringbuffer_pop(&USBD_CDC_D2H_FIFO);
}
dbgwdg_feed();
DCD_EP_Tx (pdev,
USBD_Dev_CDC_D2H_EP,
(uint8_t*)USBD_CDC_D2H_Buff,
i);
USBD_CDC_InFlight = 1;
}
if (USBD_CDC_InFlight == 0) {
DCD_EP_Flush(pdev, epnum);
}
return USBD_OK;
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
uint32_t USB_Tx_length;
usbd_cdc_Change_Open_State(1);
if (!USB_Tx_State)
return USBD_OK;
USB_Tx_length = ring_data_contig(USB_TX_BUFFER_SIZE, USB_Tx_Buffer_head, USB_Tx_Buffer_tail);
if (USB_Tx_length) {
USB_Tx_length = MIN(USB_Tx_length, CDC_DATA_IN_PACKET_SIZE);
} else if (usbd_Last_Tx_Packet_size(pdev, epnum) != CDC_DATA_IN_PACKET_SIZE) {
USB_Tx_State = 0;
return USBD_OK;
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&USB_Tx_Buffer[USB_Tx_Buffer_tail],
USB_Tx_length);
USB_Tx_Buffer_tail = ring_wrap(USB_TX_BUFFER_SIZE, USB_Tx_Buffer_tail + USB_Tx_length);
return USBD_OK;
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
if (USB_Tx_State == 1)
{
unsigned char USB_TX_Buffer[CDC_DATA_IN_PACKET_SIZE];
int USB_Tx_length = 0;
// try and fill the buffer
int c;
while (USB_Tx_length<CDC_DATA_IN_PACKET_SIZE &&
((c = jshGetCharToTransmit(EV_USBSERIAL)) >= 0) ) { // get byte to transmit
USB_TX_Buffer[USB_Tx_length++] = c;
}
// if nothing, set state to 0
if (USB_Tx_length==0) {
USB_Tx_State = 0;
return USBD_OK;
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)USB_TX_Buffer,
USB_Tx_length);
}
return USBD_OK;
}
/**
* @brief Handle_USBAsynchXfer
* Send data to USB
* @param pdev: instance
* @retval None
*/
static void Handle_USBAsynchXfer (void *pdev)
{
if(USB_Tx_State != 1)
{
unsigned char USB_TX_Buffer[CDC_DATA_IN_PACKET_SIZE];
int USB_Tx_length = 0;
// try and fill the buffer
int c;
while (USB_Tx_length<CDC_DATA_IN_PACKET_SIZE &&
((c = jshGetCharToTransmit(EV_USBSERIAL)) >=0) ) { // get byte to transmit
USB_TX_Buffer[USB_Tx_length++] = c;
}
// if nothing, set state to 0
if (USB_Tx_length==0) {
USB_Tx_State = 0;
return;
}
USB_Tx_State = 1;
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)USB_TX_Buffer,
USB_Tx_length);
}
}
/**
* @brief SCSI_ProcessRead
* Handle Read Process
* @param lun: Logical unit number
* @retval status
*/
static int8_t SCSI_ProcessRead (uint8_t lun)
{
uint32_t len;
len = MIN(SCSI_blk_len , MSC_MEDIA_PACKET);
if( USBD_STORAGE_fops->Read(lun ,
MSC_BOT_Data,
SCSI_blk_addr / SCSI_blk_size,
len / SCSI_blk_size) < 0)
{
SCSI_SenseCode(lun, HARDWARE_ERROR, UNRECOVERED_READ_ERROR);
return -1;
}
DCD_EP_Tx (cdev,
MSC_IN_EP,
MSC_BOT_Data,
len);
SCSI_blk_addr += len;
SCSI_blk_len -= len;
/* case 6 : Hi = Di */
MSC_BOT_csw.dDataResidue -= len;
if (SCSI_blk_len == 0)
{
MSC_BOT_State = BOT_LAST_DATA_IN;
}
return 0;
}
/**
* @brief Handle_USBAsynchXfer
* Send data to USB
* @param pdev: instance
* @retval None
*/
static void Handle_USBAsynchXfer (void *pdev)
{
if(USB_Tx_State != 1)
{
u8_t *data_p;
u16_t len = ringbuf_available_linear(&usb_vcd_ringbuf_tx, &data_p);
if (len == 0)
{
USB_Tx_State = 0;
return;
}
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
APP_Rx_length &= ~0x03;
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
if (len > CDC_DATA_IN_PACKET_SIZE)
{
len = CDC_DATA_IN_PACKET_SIZE;
}
USB_Tx_State = 1;
DCD_EP_Tx (pdev,
CDC_IN_EP,
data_p,
len);
ringbuf_get(&usb_vcd_ringbuf_tx, 0, len);
}
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
if (USB_Tx_State == 1)
{
u8_t *data_p;
u16_t len = ringbuf_available_linear(&usb_vcd_ringbuf_tx, &data_p);
if (len == 0)
{
USB_Tx_State = 0;
}
else
{
if (len > CDC_DATA_IN_PACKET_SIZE){
len = CDC_DATA_IN_PACKET_SIZE;
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
data_p,
len);
ringbuf_get(&usb_vcd_ringbuf_tx, 0, len);
}
}
return USBD_OK;
}
/**
* @brief Handle_USBAsynchXfer
* Send data to USB
* @param pdev: instance
* @retval None
*/
static void Handle_USBAsynchXfer (void *pdev)
{
uint16_t USB_Tx_ptr;
uint16_t USB_Tx_length;
if(USB_Tx_State != 1)
{
if (APP_Rx_ptr_out == APP_RX_DATA_SIZE)
{
APP_Rx_ptr_out = 0;
}
if(APP_Rx_ptr_out == APP_Rx_ptr_in)
{
USB_Tx_State = 0;
return;
}
if(APP_Rx_ptr_out > APP_Rx_ptr_in) /* rollback */
{
APP_Rx_length = APP_RX_DATA_SIZE - APP_Rx_ptr_out;
}
else
{
APP_Rx_length = APP_Rx_ptr_in - APP_Rx_ptr_out;
}
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
APP_Rx_length &= ~0x03;
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE)
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
}
USB_Tx_State = 1;
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
}
}
//--------------------------------------------------------------
USBD_Status USBD_CtlContinueSendData(USB_OTG_CORE_HANDLE * pdev, uint8_t * pbuf, uint16_t len)
{
USBD_Status ret = USBD_OK;
DCD_EP_Tx(pdev, 0, pbuf, len);
return ret;
}
/**
* @brief Handle_USBAsynchXfer
* Send data to USB
* @param pdev: instance
* @retval None
*/
static void Handle_USBAsynchXfer (void *pdev)
{
uint16_t USB_Tx_ptr;
uint16_t USB_Tx_length;
if(USB_Tx_State != 1)
{
if (APP_Rx_ptr_out == APP_RX_DATA_SIZE)
{
APP_Rx_ptr_out = 0;
}
if(APP_Rx_ptr_out == APP_Rx_ptr_in)
{
USB_Tx_State = 0;
return;
}
if(APP_Rx_ptr_out > APP_Rx_ptr_in) /* rollback */
{
APP_Rx_length = APP_RX_DATA_SIZE - APP_Rx_ptr_out;
}
else
{
APP_Rx_length = APP_Rx_ptr_in - APP_Rx_ptr_out;
}
if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE)
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
if (USB_Tx_length == CDC_DATA_IN_PACKET_SIZE) last_packet = 1; //IBA
if (APP_Rx_ptr_in == 64) APP_Rx_ptr_in=0;
}
USB_Tx_State = 1;
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
}
}
/**********************************************************************************************************
*函 数 名: Usb_Send
*功能说明: USB发送数据
*形 参: 发送数据缓冲区指针 数据长度
*返 回 值: 无
**********************************************************************************************************/
void Usb_Send(uint8_t *dataToSend, uint8_t length)
{
if(connectFlag)
{
DCD_EP_Tx(&USB_OTG_dev, 1, dataToSend, length);
DCD_SetEPStatus(&USB_OTG_dev,1, USB_OTG_EP_TX_VALID);
}
errorCheckCnt = 0;
}
//--------------------------------------------------------------
USBD_Status USBD_CtlSendStatus(USB_OTG_CORE_HANDLE * pdev)
{
USBD_Status ret = USBD_OK;
pdev->dev.device_state = USB_OTG_EP0_STATUS_IN;
DCD_EP_Tx(pdev, 0, NULL, 0);
USB_OTG_EP0_OutStart(pdev);
return ret;
}
void usb_midi_refresh(void){
uint32_t buf[128];
uint8_t count=FIFO_COUNT(USB_midi_packets_in);
if (count && USB_transferPossible){
for (uint8_t i=0; i<count; i++){
buf[i]=FIFO_FRONT(USB_midi_packets_in);
FIFO_POP(USB_midi_packets_in);
}
DCD_EP_Tx(&USB_OTG_dev, MIDI_IN_EP, (uint8_t*)buf, count<<2);
}
}
static uint8_t usbd_video_SOF (void *pdev)
{
if (play_status == 1)
{
DCD_EP_Flush(pdev,USB_ENDPOINT_IN(1));
DCD_EP_Tx (pdev,USB_ENDPOINT_IN(1), (uint8_t*)0x0002, 2);//header
play_status = 2;
}
return USBD_OK;
}
uint8_t USBD_SendReport (USB_OTG_CORE_HANDLE *pdev,
uint8_t *report,
uint16_t len)
{
if (pdev->dev.device_status == USB_OTG_CONFIGURED )
{
DCD_EP_Tx (pdev, HID_IN_EP, report, len);
}
return USBD_OK;
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_cdc_msc_DataIn (void *pdev, uint8_t epnum)
{
uint16_t USB_Tx_ptr = 0;
uint16_t USB_Tx_length;
if (epnum == CDC_IN_EP || epnum == CDC_OUT_EP) {
if (USB_Tx_State == 1)
{
if (APP_Rx_length == 0)
{
if (((USB_OTG_CORE_HANDLE*)pdev)->dev.in_ep[epnum].xfer_len != CDC_DATA_IN_PACKET_SIZE)
{
USB_Tx_State = 0;
return USBD_OK;
}
/* Transmit zero sized packet in case the last one has maximum allowed size. Otherwise
* the recipient may expect more data coming soon and not return buffered data to app.
* See section 5.8.3 Bulk Transfer Packet Size Constraints
* of the USB Specification document.
*/
USB_Tx_length = 0;
}
else
{
if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE){
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
}
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
}
}
else {
MSC_BOT_DataIn(pdev , epnum);
}
return USBD_OK;
}
/**
* @brief MSC_BOT_SendData
* Send the requested data
* @param pdev: device instance
* @param buf: pointer to data buffer
* @param len: Data Length
* @retval None
*/
static void MSC_BOT_SendData(USB_OTG_CORE_HANDLE *pdev,
uint8_t* buf,
uint16_t len) {
len = MIN (MSC_BOT_cbw.dDataLength, len);
MSC_BOT_csw.dDataResidue -= len;
MSC_BOT_csw.bStatus = CSW_CMD_PASSED;
MSC_BOT_State = BOT_SEND_DATA;
DCD_EP_Tx (pdev, MSC_IN_EP, buf, len);
}
void rndis_query_cmplt32(int status, uint32_t data)
{
rndis_query_cmplt_t *c;
c = (rndis_query_cmplt_t *)encapsulated_buffer;
c->MessageType = REMOTE_NDIS_QUERY_CMPLT;
c->MessageLength = sizeof(rndis_query_cmplt_t) + 4;
c->InformationBufferLength = 4;
c->InformationBufferOffset = 16;
c->Status = status;
*(uint32_t *)(c + 1) = data;
DCD_EP_Tx(&USB_OTG_dev, RNDIS_NOTIFICATION_IN_EP, (uint8_t *)"\x01\x00\x00\x00\x00\x00\x00\x00", 8);
}
//--------------------------------------------------------------
USBD_Status USBD_CtlSendData(USB_OTG_CORE_HANDLE * pdev, uint8_t * pbuf, uint16_t len)
{
USBD_Status ret = USBD_OK;
pdev->dev.in_ep[0].total_data_len = len;
pdev->dev.in_ep[0].rem_data_len = len;
pdev->dev.device_state = USB_OTG_EP0_DATA_IN;
DCD_EP_Tx(pdev, 0, pbuf, len);
return ret;
}
void rndis_query_cmplt(int status, const void *data, int size)
{
rndis_query_cmplt_t *c;
c = (rndis_query_cmplt_t *)encapsulated_buffer;
c->MessageType = REMOTE_NDIS_QUERY_CMPLT;
c->MessageLength = sizeof(rndis_query_cmplt_t) + size;
c->InformationBufferLength = size;
c->InformationBufferOffset = 16;
c->Status = status;
memcpy(c + 1, data, size);
DCD_EP_Tx(&USB_OTG_dev, RNDIS_NOTIFICATION_IN_EP, (uint8_t *)"\x01\x00\x00\x00\x00\x00\x00\x00", 8);
}
static uint8_t usbd_cf_SOF (void *pdev)
{
portBASE_TYPE xTaskWokenByReceive = pdFALSE;
if (xQueueReceiveFromISR(usbDataTx, &outPacket, &xTaskWokenByReceive) == pdTRUE)
{
DCD_EP_Tx (pdev,
IN_EP,
(uint8_t*)outPacket.data,
outPacket.size);
}
return USBD_OK;
}
/**
* @brief CCID_IntMessage
* Send the Interrupt-IN data to the host
* @param pdev: device instance
* @retval None
*/
void CCID_IntMessage(USB_CORE_HANDLE *pdev)
{
/* Check if there us change in Smartcard Slot status */
if ( CCID_IsSlotStatusChange() && CCID_IsIntrTransferComplete() )
{
/* Check Slot Status is changed. Card is Removed/ Fitted */
RDR_to_PC_NotifySlotChange();
CCID_SetIntrTransferStatus(0); /* Reset the Status */
CCID_UpdSlotChange(0); /* Reset the Status of Slot Change */
DCD_EP_Tx (pdev, CCID_INTR_IN_EP, UsbIntMessageBuffer, 2);
}
}
static void usbd_cdc_Schedule_In(void *pdev)
{
uint32_t USB_Tx_length;
USB_Tx_length = ring_data_contig(USB_TX_BUFFER_SIZE, USB_Tx_Buffer_head, USB_Tx_Buffer_tail);
if (USB_Tx_State) {
if (USB_Serial_Open) {
USB_Tx_failed_counter++;
if (USB_Tx_failed_counter >= 500) {
usbd_cdc_Change_Open_State(0);
// Completely flush TX buffer
DCD_EP_Flush(pdev, CDC_IN_EP);
// Send ZLP
DCD_EP_Tx(pdev, CDC_IN_EP, NULL, 0);
if (USB_Tx_length)
USB_Tx_Buffer_tail = ring_wrap(USB_TX_BUFFER_SIZE, USB_Tx_Buffer_tail + USB_Tx_length);
USB_Tx_State = 0;
}
}
return;
}
if (!USB_Tx_length)
return;
USB_Tx_State = 1;
USB_Tx_failed_counter = 0;
USB_Tx_length = MIN(USB_Tx_length, CDC_DATA_IN_PACKET_SIZE);
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&USB_Tx_Buffer[USB_Tx_Buffer_tail],
USB_Tx_length);
USB_Tx_Buffer_tail = ring_wrap(USB_TX_BUFFER_SIZE, USB_Tx_Buffer_tail + USB_Tx_length);
}
void SCSI_ProcessReadComplete(uint32_t len) {
DCD_EP_Tx (cdev,
MSC_IN_EP,
MSC_BOT_Data,
len);
SCSI_blk_addr += len;
SCSI_blk_len -= len;
/* case 6 : Hi = Di */
MSC_BOT_csw.dDataResidue -= len;
if (SCSI_blk_len == 0) {
MSC_BOT_State = BOT_LAST_DATA_IN;
}
}
/**
* @brief MSC_BOT_SendCSW
* Send the Command Status Wrapper
* @param pdev: device instance
* @param status : CSW status
* @retval None
*/
void MSC_BOT_SendCSW (USB_OTG_CORE_HANDLE *pdev,
uint8_t CSW_Status) {
MSC_BOT_csw.dSignature = BOT_CSW_SIGNATURE;
MSC_BOT_csw.bStatus = CSW_Status;
MSC_BOT_State = BOT_IDLE;
DCD_EP_Tx (pdev,
MSC_IN_EP,
(uint8_t *)&MSC_BOT_csw,
BOT_CSW_LENGTH);
/* Prapare EP to Receive next Cmd */
DCD_EP_PrepareRx (pdev,
MSC_OUT_EP,
(uint8_t *)&MSC_BOT_cbw,
BOT_CBW_LENGTH);
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
uint16_t USB_Tx_ptr;
uint16_t USB_Tx_length;
if (USB_Tx_State == 1)
{
if (APP_Rx_length == 0)
{
USB_Tx_State = 0;
}
else
{
if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE){
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
//ZS - data smaller than 64 bytes - don't increment pointers...
APP_Rx_ptr_out = 0;
APP_Rx_ptr_in = 0;
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
}
}
return USBD_OK;
}
/**
* @brief usbd_audio_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_cdc_DataIn (void *pdev, uint8_t epnum)
{
uint16_t USB_Tx_ptr;
uint16_t USB_Tx_length;
if (USB_Tx_State == 1)
{
if (APP_Rx_length == 0)
{
USB_Tx_State = 0;
}
else
{
if (APP_Rx_length > VIRTUAL_COM_PORT_DATA_SIZE){
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = VIRTUAL_COM_PORT_DATA_SIZE;
APP_Rx_ptr_out += VIRTUAL_COM_PORT_DATA_SIZE;
APP_Rx_length -= VIRTUAL_COM_PORT_DATA_SIZE;
}
else
{
USB_Tx_ptr = APP_Rx_ptr_out;
USB_Tx_length = APP_Rx_length;
APP_Rx_ptr_out += APP_Rx_length;
APP_Rx_length = 0;
}
/* Prepare the available data buffer to be sent on IN endpoint */
DCD_EP_Tx (pdev,
CDC_IN_EP,
(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
USB_Tx_length);
}
}
return USBD_OK;
}