1751 HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc, uint8_t dma)  in USB_HC_StartXfer()  argument
1754   uint32_t ch_num = (uint32_t)hc->ch_num;  in USB_HC_StartXfer()
1764     if ((hc->ep_type == EP_TYPE_CTRL) || (hc->ep_type == EP_TYPE_BULK))  in USB_HC_StartXfer()
1774     if ((hc->speed == USBH_HS_SPEED) && (hc->do_ping == 1U))  in USB_HC_StartXfer()
1776       (void)USB_DoPing(USBx, hc->ch_num);  in USB_HC_StartXfer()
1781   if (hc->do_ssplit == 1U)  in USB_HC_StartXfer()
1786     if (hc->ep_is_in != 0U)  in USB_HC_StartXfer()
1788       hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1792       if (hc->ep_type == EP_TYPE_ISOC)  in USB_HC_StartXfer()
1794         if (hc->xfer_len > ISO_SPLT_MPS)  in USB_HC_StartXfer()
1797           hc->XferSize = hc->max_packet;  in USB_HC_StartXfer()
1798           hc->xfer_len = hc->XferSize;  in USB_HC_StartXfer()
1800           if ((hc->iso_splt_xactPos == HCSPLT_BEGIN) || (hc->iso_splt_xactPos == HCSPLT_MIDDLE))  in USB_HC_StartXfer()
1802             hc->iso_splt_xactPos = HCSPLT_MIDDLE;  in USB_HC_StartXfer()
1806             hc->iso_splt_xactPos = HCSPLT_BEGIN;  in USB_HC_StartXfer()
1811           hc->XferSize = hc->xfer_len;  in USB_HC_StartXfer()
1813           if ((hc->iso_splt_xactPos != HCSPLT_BEGIN) && (hc->iso_splt_xactPos != HCSPLT_MIDDLE))  in USB_HC_StartXfer()
1815             hc->iso_splt_xactPos = HCSPLT_FULL;  in USB_HC_StartXfer()
1819             hc->iso_splt_xactPos = HCSPLT_END;  in USB_HC_StartXfer()
1825         if ((dma == 1U) && (hc->xfer_len > hc->max_packet))  in USB_HC_StartXfer()
1827           hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1831           hc->XferSize = hc->xfer_len;  in USB_HC_StartXfer()
1839     if (hc->xfer_len > 0U)  in USB_HC_StartXfer()
1841       num_packets = (uint16_t)((hc->xfer_len + hc->max_packet - 1U) / hc->max_packet);  in USB_HC_StartXfer()
1846         hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1858     if (hc->ep_is_in != 0U)  in USB_HC_StartXfer()
1860       hc->XferSize = (uint32_t)num_packets * hc->max_packet;  in USB_HC_StartXfer()
1864       hc->XferSize = hc->xfer_len;  in USB_HC_StartXfer()
1869   USBx_HC(ch_num)->HCTSIZ = (hc->XferSize & USB_OTG_HCTSIZ_XFRSIZ) |  in USB_HC_StartXfer()
1871                             (((uint32_t)hc->data_pid << 29) & USB_OTG_HCTSIZ_DPID);  in USB_HC_StartXfer()
1876     USBx_HC(ch_num)->HCDMA = (uint32_t)hc->xfer_buff;  in USB_HC_StartXfer()
1883   if (hc->do_ssplit == 1U)  in USB_HC_StartXfer()
1886     USBx_HC((uint32_t)ch_num)->HCSPLT = ((uint32_t)hc->hub_addr << USB_OTG_HCSPLT_HUBADDR_Pos) |  in USB_HC_StartXfer()
1887                                         (uint32_t)hc->hub_port_nbr | USB_OTG_HCSPLT_SPLITEN;  in USB_HC_StartXfer()
1893     if ((hc->do_csplit == 1U) && (hc->ep_is_in == 0U))  in USB_HC_StartXfer()
1899     if (((hc->ep_type == EP_TYPE_ISOC) || (hc->ep_type == EP_TYPE_INTR)) &&  in USB_HC_StartXfer()
1900         (hc->do_csplit == 1U) && (hc->ep_is_in == 1U))  in USB_HC_StartXfer()
1906     if ((hc->ep_type == EP_TYPE_ISOC) && (hc->ep_is_in == 0U))  in USB_HC_StartXfer()
1909       switch (hc->iso_splt_xactPos)  in USB_HC_StartXfer()
1947   if (hc->ep_is_in != 0U)  in USB_HC_StartXfer()
1963   if ((hc->ep_is_in == 0U) && (hc->xfer_len > 0U) && (hc->do_csplit == 0U))  in USB_HC_StartXfer()
1965     switch (hc->ep_type)  in USB_HC_StartXfer()
1971         len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);  in USB_HC_StartXfer()
1984         len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);  in USB_HC_StartXfer()
1998     (void)USB_WritePacket(USBx, hc->xfer_buff, hc->ch_num, (uint16_t)hc->xfer_len, 0);  in USB_HC_StartXfer()