1771 HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc, uint8_t dma)  in USB_HC_StartXfer()  argument
1774   uint32_t ch_num = (uint32_t)hc->ch_num;  in USB_HC_StartXfer()
1784     if ((hc->ep_type == EP_TYPE_CTRL) || (hc->ep_type == EP_TYPE_BULK))  in USB_HC_StartXfer()
1794     if ((hc->speed == USBH_HS_SPEED) && (hc->do_ping == 1U))  in USB_HC_StartXfer()
1796       (void)USB_DoPing(USBx, hc->ch_num);  in USB_HC_StartXfer()
1801   if (hc->do_ssplit == 1U)  in USB_HC_StartXfer()
1806     if (hc->ep_is_in != 0U)  in USB_HC_StartXfer()
1808       hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1812       if (hc->ep_type == EP_TYPE_ISOC)  in USB_HC_StartXfer()
1814         if (hc->xfer_len > ISO_SPLT_MPS)  in USB_HC_StartXfer()
1817           hc->XferSize = hc->max_packet;  in USB_HC_StartXfer()
1818           hc->xfer_len = hc->XferSize;  in USB_HC_StartXfer()
1820           if ((hc->iso_splt_xactPos == HCSPLT_BEGIN) || (hc->iso_splt_xactPos == HCSPLT_MIDDLE))  in USB_HC_StartXfer()
1822             hc->iso_splt_xactPos = HCSPLT_MIDDLE;  in USB_HC_StartXfer()
1826             hc->iso_splt_xactPos = HCSPLT_BEGIN;  in USB_HC_StartXfer()
1831           hc->XferSize = hc->xfer_len;  in USB_HC_StartXfer()
1833           if ((hc->iso_splt_xactPos != HCSPLT_BEGIN) && (hc->iso_splt_xactPos != HCSPLT_MIDDLE))  in USB_HC_StartXfer()
1835             hc->iso_splt_xactPos = HCSPLT_FULL;  in USB_HC_StartXfer()
1839             hc->iso_splt_xactPos = HCSPLT_END;  in USB_HC_StartXfer()
1845         if ((dma == 1U) && (hc->xfer_len > hc->max_packet))  in USB_HC_StartXfer()
1847           hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1851           hc->XferSize = hc->xfer_len;  in USB_HC_StartXfer()
1859     if (hc->xfer_len > 0U)  in USB_HC_StartXfer()
1861       num_packets = (uint16_t)((hc->xfer_len + hc->max_packet - 1U) / hc->max_packet);  in USB_HC_StartXfer()
1866         hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1878     if (hc->ep_is_in != 0U)  in USB_HC_StartXfer()
1880       hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1884       hc->XferSize = hc->xfer_len;  in USB_HC_StartXfer()
1889   USBx_HC(ch_num)->HCTSIZ = (hc->XferSize & USB_OTG_HCTSIZ_XFRSIZ) |  in USB_HC_StartXfer()
1891                             (((uint32_t)hc->data_pid << 29) & USB_OTG_HCTSIZ_DPID);  in USB_HC_StartXfer()
1896     USBx_HC(ch_num)->HCDMA = (uint32_t)hc->xfer_buff;  in USB_HC_StartXfer()
1903   if (hc->do_ssplit == 1U)  in USB_HC_StartXfer()
1906     USBx_HC((uint32_t)ch_num)->HCSPLT = ((uint32_t)hc->hub_addr << USB_OTG_HCSPLT_HUBADDR_Pos) |  in USB_HC_StartXfer()
1907                                         (uint32_t)hc->hub_port_nbr | USB_OTG_HCSPLT_SPLITEN;  in USB_HC_StartXfer()
1913     if ((hc->do_csplit == 1U) && (hc->ep_is_in == 0U))  in USB_HC_StartXfer()
1919     if (((hc->ep_type == EP_TYPE_ISOC) || (hc->ep_type == EP_TYPE_INTR)) &&  in USB_HC_StartXfer()
1920         (hc->do_csplit == 1U) && (hc->ep_is_in == 1U))  in USB_HC_StartXfer()
1926     if ((hc->ep_type == EP_TYPE_ISOC) && (hc->ep_is_in == 0U))  in USB_HC_StartXfer()
1929       switch (hc->iso_splt_xactPos)  in USB_HC_StartXfer()
1967   if (hc->ep_is_in != 0U)  in USB_HC_StartXfer()
1983   if ((hc->ep_is_in == 0U) && (hc->xfer_len > 0U) && (hc->do_csplit == 0U))  in USB_HC_StartXfer()
1985     switch (hc->ep_type)  in USB_HC_StartXfer()
1991         len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);  in USB_HC_StartXfer()
2004         len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);  in USB_HC_StartXfer()
2018     (void)USB_WritePacket(USBx, hc->xfer_buff, hc->ch_num, (uint16_t)hc->xfer_len, 0);  in USB_HC_StartXfer()