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148 lines
3.5 KiB
148 lines
3.5 KiB
5 months ago
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/*
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* Copyright (c) 2006-2025, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2025-11-07 RealThread the first version
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*/
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#include "drv_usbh_transc.h"
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#if defined(BSP_USING_USB) && defined(RT_USING_USB_HOST)
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#define USB_SETUP_PACKET_LEN 8U
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/*!
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\brief prepare a pipe and start a transfer
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\param[in] pudev: pointer to usb core instance
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\param[in] pp_num: pipe number
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\param[out] none
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\retval operation status
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*/
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static uint32_t usbh_request_submit(usb_core_driver *pudev, uint8_t pp_num)
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{
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pudev->host.pipe[pp_num].urb_state = URB_IDLE;
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pudev->host.pipe[pp_num].xfer_count = 0U;
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return usb_pipe_xfer(pudev, pp_num);
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}
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/*!
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\brief send the setup packet to the USB device
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\param[in] pudev: pointer to usb core instance
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\param[in] buf: data buffer which will be sent to USB device
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\param[in] pp_num: pipe number
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\param[out] none
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\retval operation status
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*/
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usbh_status usbh_ctlsetup_send(usb_core_driver *pudev, uint8_t *buf, uint8_t pp_num)
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{
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usb_pipe *pp = &pudev->host.pipe[pp_num];
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pp->DPID = PIPE_DPID_SETUP;
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pp->xfer_buf = buf;
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pp->xfer_len = USB_SETUP_PACKET_LEN;
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return (usbh_status)usbh_request_submit(pudev, pp_num);
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}
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/*!
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\brief send a data packet to the USB device
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\param[in] pudev: pointer to usb core instance
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\param[in] buf: data buffer which will be sent to USB device
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\param[in] pp_num: pipe number
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\param[in] len: length of the data to be sent
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\param[out] none
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\retval operation status
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*/
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usbh_status usbh_data_send(usb_core_driver *pudev, uint8_t *buf, uint8_t pp_num, uint16_t len)
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{
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usb_pipe *pp = &pudev->host.pipe[pp_num];
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pp->xfer_buf = buf;
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pp->xfer_len = len;
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switch (pp->ep.type)
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{
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case USB_EPTYPE_CTRL:
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if (0U == len)
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{
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pp->data_toggle_out = 1U;
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}
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pp->DPID = PIPE_DPID[pp->data_toggle_out];
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break;
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case USB_EPTYPE_INTR:
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pp->DPID = PIPE_DPID[pp->data_toggle_out];
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pp->data_toggle_out ^= 1U;
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break;
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case USB_EPTYPE_BULK:
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pp->DPID = PIPE_DPID[pp->data_toggle_out];
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break;
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case USB_EPTYPE_ISOC:
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pp->DPID = PIPE_DPID[0];
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break;
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default:
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break;
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}
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usbh_request_submit(pudev, pp_num);
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return USBH_OK;
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}
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/*!
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\brief receive a data packet from the USB device
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\param[in] pudev: pointer to usb core instance
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\param[in] buf: data buffer which will be received from USB device
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\param[in] pp_num: pipe number
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\param[in] len: length of the data to be received
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\param[out] none
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\retval operation status
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*/
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usbh_status usbh_data_recev(usb_core_driver *pudev, uint8_t *buf, uint8_t pp_num, uint16_t len)
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{
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usb_pipe *pp = &pudev->host.pipe[pp_num];
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pp->xfer_buf = buf;
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pp->xfer_len = len;
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switch (pp->ep.type)
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{
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case USB_EPTYPE_CTRL:
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pp->DPID = PIPE_DPID[1];
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break;
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case USB_EPTYPE_INTR:
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pp->DPID = PIPE_DPID[pp->data_toggle_in];
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/* Toggle DATA PID */
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pp->data_toggle_in ^= 1U;
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break;
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case USB_EPTYPE_BULK:
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pp->DPID = PIPE_DPID[pp->data_toggle_in];
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break;
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case USB_EPTYPE_ISOC:
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pp->DPID = PIPE_DPID[0];
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break;
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default:
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break;
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}
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usbh_request_submit(pudev, pp_num);
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return USBH_OK;
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}
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#endif /* BSP_USING_USB && RT_USING_USB_HOST */
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