/** * @brief Prepares an endpoint for reception. * @param pdev: Device handle * @param ep_addr: Endpoint Number * @param pbuf: Pointer to data to be received * @param size: Data size * @retval USBD Status */ USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size) { HAL_StatusTypeDef hal_status = HAL_OK; USBD_StatusTypeDef usb_status = USBD_OK; hal_status = HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size); switch (hal_status) { case HAL_OK : usb_status = USBD_OK; break; case HAL_ERROR : usb_status = USBD_FAIL; break; case HAL_BUSY : usb_status = USBD_BUSY; break; case HAL_TIMEOUT : usb_status = USBD_FAIL; break; default : usb_status = USBD_FAIL; break; } return usb_status; }
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) { PCD_EPTypeDef *ep = &hpcd->IN_ep[epnum]; LTRACEF("epnum %u, xfer count %u len %u\n", epnum, ep->xfer_count, ep->xfer_len); if (epnum == 0) { // TODO(konkers): implement multi packet. struct ep_status *ep = &usbc.ep_in[0]; if (ep->ack_ep0_in) { // in transfer done, ready for receive status HAL_PCD_EP_Receive(&usbc.handle, 0, 0, 0); } } else { // in transfer done if (usbc.ep_in[epnum].transfer) { // completing a transfer usbc_transfer_t *t = usbc.ep_in[epnum].transfer; usbc.ep_in[epnum].transfer = NULL; LTRACEF("completing transfer %p\n", t); PCD_EPTypeDef *ep = &hpcd->IN_ep[epnum]; t->bufpos = ep->xfer_count; t->result = 0; t->callback(epnum, t); usbc.do_resched = true; } } }
int usb_dc_ep_start_read(u8_t ep, u8_t *data, u32_t max_data_len) { HAL_StatusTypeDef status; LOG_DBG("ep 0x%02x, len %u", ep, max_data_len); /* we flush EP0_IN by doing a 0 length receive on it */ if (!EP_IS_OUT(ep) && (ep != EP0_IN || max_data_len)) { LOG_ERR("invalid ep 0x%02x", ep); return -EINVAL; } if (max_data_len > EP_MPS) { max_data_len = EP_MPS; } status = HAL_PCD_EP_Receive(&usb_dc_stm32_state.pcd, ep, usb_dc_stm32_state.ep_buf[EP_IDX(ep)], max_data_len); if (status != HAL_OK) { LOG_ERR("HAL_PCD_EP_Receive failed(0x%02x), %d", ep, (int)status); return -EIO; } return 0; }
/** * @brief Prepares an endpoint for reception. * @param pdev: Device handle * @param ep_addr: Endpoint Number * @param pbuf: Pointer to data to be received * @param size: Data size * @retval USBD Status */ USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size) { HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size); return USBD_OK; }
void USBHAL::EP0read(void) { USBHAL_Private_t *HALPriv = (USBHAL_Private_t *)hpcd.pData; uint32_t epIndex = EP_ADDR(EP0OUT); uint8_t *pBuf = (uint8_t *)HALPriv->pBufRx0; HAL_StatusTypeDef ret; HALPriv->epComplete[EP0OUT] = 2; ret = HAL_PCD_EP_Receive(&hpcd, epIndex, pBuf, MAX_PACKET_SIZE_EP0 ); MBED_ASSERT(ret!=HAL_BUSY); }
/** * @brief Prepares an endpoint for reception. * @param pdev: Device handle * @param ep_addr: Endpoint Number * @param pbuf: Pointer to data to be received * @param size: Data size * @retval USBD Status */ USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size) { //ui_led_usb_flash( UI_LED_FLSH_SHRT_TCKS ); HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size); return USBD_OK; }
EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) { USBHAL_Private_t *HALPriv = (USBHAL_Private_t *)(hpcd.pData); uint32_t epIndex = EP_ADDR(endpoint); uint8_t* pBuf = (uint8_t *)HALPriv->pBufRx; HAL_StatusTypeDef ret; // clean reception end flag before requesting reception HALPriv->epComplete[endpoint] = 2; ret = HAL_PCD_EP_Receive(&hpcd, epIndex, pBuf, maximumSize); MBED_ASSERT(ret!=HAL_BUSY); return EP_PENDING; }
status_t usbc_queue_rx(ep_t ep, usbc_transfer_t *transfer) { LTRACEF("ep %u, transfer %p (buf %p, buflen %zu)\n", ep, transfer, transfer->buf, transfer->buflen); DEBUG_ASSERT(ep <= NUM_EP); DEBUG_ASSERT(usbc.ep_out[ep].transfer == NULL); usbc.ep_out[ep].transfer = transfer; HAL_PCD_EP_Receive(&usbc.handle, ep, transfer->buf, transfer->buflen); return NO_ERROR; }
/** * @brief This function handles PCD Endpoint interrupt request. * @param hpcd: PCD handle * @retval HAL status */ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd) { PCD_EPTypeDef *ep; uint16_t count=0; uint8_t EPindex; __IO uint16_t wIstr; __IO uint16_t wEPVal = 0; /* stay in loop while pending interrupts */ while (((wIstr = hpcd->Instance->ISTR) & USB_ISTR_CTR) != 0) { /* extract highest priority endpoint number */ EPindex = (uint8_t)(wIstr & USB_ISTR_EP_ID); if (EPindex == 0) { /* Decode and service control endpoint interrupt */ /* DIR bit = origin of the interrupt */ if ((wIstr & USB_ISTR_DIR) == 0) { /* DIR = 0 */ /* DIR = 0 => IN int */ /* DIR = 0 implies that (EP_CTR_TX = 1) always */ PCD_CLEAR_TX_EP_CTR(hpcd->Instance, PCD_ENDP0); ep = &hpcd->IN_ep[0]; ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); ep->xfer_buff += ep->xfer_count; /* TX COMPLETE */ HAL_PCD_DataInStageCallback(hpcd, 0); if((hpcd->USB_Address > 0)&& ( ep->xfer_len == 0)) { hpcd->Instance->DADDR = (hpcd->USB_Address | USB_DADDR_EF); hpcd->USB_Address = 0; } } else { /* DIR = 1 */ /* DIR = 1 & CTR_RX => SETUP or OUT int */ /* DIR = 1 & (CTR_TX | CTR_RX) => 2 int pending */ ep = &hpcd->OUT_ep[0]; wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0); if ((wEPVal & USB_EP_SETUP) != 0) { /* Get SETUP Packet*/ ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num); PCD_ReadPMA(hpcd->Instance, (uint8_t*)hpcd->Setup ,ep->pmaadress , ep->xfer_count); /* SETUP bit kept frozen while CTR_RX = 1*/ PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0); /* Process SETUP Packet*/ HAL_PCD_SetupStageCallback(hpcd); } else if ((wEPVal & USB_EP_CTR_RX) != 0) { PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0); /* Get Control Data OUT Packet*/ ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, ep->xfer_count); ep->xfer_buff+=ep->xfer_count; } /* Process Control Data OUT Packet*/ HAL_PCD_DataOutStageCallback(hpcd, 0); PCD_SET_EP_RX_CNT(hpcd->Instance, PCD_ENDP0, ep->maxpacket); PCD_SET_EP_RX_STATUS(hpcd->Instance, PCD_ENDP0, USB_EP_RX_VALID); } } } else { /* Decode and service non control endpoints interrupt */ /* process related endpoint register */ wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, EPindex); if ((wEPVal & USB_EP_CTR_RX) != 0) { /* clear int flag */ PCD_CLEAR_RX_EP_CTR(hpcd->Instance, EPindex); ep = &hpcd->OUT_ep[EPindex]; /* OUT double Buffering*/ if (ep->doublebuffer == 0) { count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num); if (count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, count); } } else { if (PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_RX) { /*read from endpoint BUF0Addr buffer*/ count = PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num); if (count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count); } } else { /*read from endpoint BUF1Addr buffer*/ count = PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num); if (count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count); } } PCD_FreeUserBuffer(hpcd->Instance, ep->num, PCD_EP_DBUF_OUT); } /*multi-packet on the NON control OUT endpoint*/ ep->xfer_count+=count; ep->xfer_buff+=count; if ((ep->xfer_len == 0) || (count < ep->maxpacket)) { /* RX COMPLETE */ HAL_PCD_DataOutStageCallback(hpcd, ep->num); } else { HAL_PCD_EP_Receive(hpcd, ep->num, ep->xfer_buff, ep->xfer_len); } } /* if((wEPVal & EP_CTR_RX) */ if ((wEPVal & USB_EP_CTR_TX) != 0) { ep = &hpcd->IN_ep[EPindex]; /* clear int flag */ PCD_CLEAR_TX_EP_CTR(hpcd->Instance, EPindex); /* IN double Buffering*/ if (ep->doublebuffer == 0) { ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, ep->xfer_count); } } else { if (PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_TX) { /*read from endpoint BUF0Addr buffer*/ ep->xfer_count = PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, ep->xfer_count); } } else { /*read from endpoint BUF1Addr buffer*/ ep->xfer_count = PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, ep->xfer_count); } } PCD_FreeUserBuffer(hpcd->Instance, ep->num, PCD_EP_DBUF_IN); } /*multi-packet on the NON control IN endpoint*/ ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); ep->xfer_buff+=ep->xfer_count; /* Zero Length Packet? */ if (ep->xfer_len == 0) { /* TX COMPLETE */ HAL_PCD_DataInStageCallback(hpcd, ep->num); } else { HAL_PCD_EP_Transmit(hpcd, ep->num, ep->xfer_buff, ep->xfer_len); } } } } return HAL_OK; }