mirror of
https://github.com/ArteryTek/AT32F403A_407_Firmware_Library.git
synced 2026-05-21 09:22:19 +00:00
upload version v2.0.4
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Artery-MCU
294
middlewares/usbd_class/msc/msc_class.c
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294
middlewares/usbd_class/msc/msc_class.c
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/**
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**************************************************************************
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* @file msc_class.c
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* @version v2.0.4
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* @date 2021-11-26
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* @brief usb msc class type
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**************************************************************************
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* Copyright notice & Disclaimer
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*
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* The software Board Support Package (BSP) that is made available to
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* download from Artery official website is the copyrighted work of Artery.
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* Artery authorizes customers to use, copy, and distribute the BSP
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* software and its related documentation for the purpose of design and
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* development in conjunction with Artery microcontrollers. Use of the
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* software is governed by this copyright notice and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
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* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
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* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
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* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
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* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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*
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**************************************************************************
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*/
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#include "usbd_core.h"
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#include "msc_class.h"
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#include "msc_desc.h"
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#include "msc_bot_scsi.h"
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/** @addtogroup AT32F403A_407_middlewares_usbd_class
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* @{
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*/
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/** @defgroup USB_msc_class
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* @brief usb device class msc demo
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* @{
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*/
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/** @defgroup USB_msc_class_private_functions
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* @{
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*/
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usb_sts_type class_init_handler(void *udev);
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usb_sts_type class_clear_handler(void *udev);
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usb_sts_type class_setup_handler(void *udev, usb_setup_type *setup);
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usb_sts_type class_ept0_tx_handler(void *udev);
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usb_sts_type class_ept0_rx_handler(void *udev);
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usb_sts_type class_in_handler(void *udev, uint8_t ept_num);
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usb_sts_type class_out_handler(void *udev, uint8_t ept_num);
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usb_sts_type class_sof_handler(void *udev);
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usb_sts_type class_event_handler(void *udev, usbd_event_type event);
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/* usb rx and tx buffer */
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static uint32_t alt_setting = 0;
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extern msc_type msc_struct;
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extern cbw_type cbw_struct;
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extern csw_type csw_struct;
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/* usb device class handler */
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usbd_class_handler msc_class_handler =
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{
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class_init_handler,
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class_clear_handler,
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class_setup_handler,
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class_ept0_tx_handler,
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class_ept0_rx_handler,
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class_in_handler,
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class_out_handler,
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class_sof_handler,
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class_event_handler,
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};
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/**
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* @brief initialize usb endpoint
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* @param udev: to the structure of usbd_core_type
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_init_handler(void *udev)
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{
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usb_sts_type status = USB_OK;
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usbd_core_type *pudev = (usbd_core_type *)udev;
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/* open in endpoint */
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usbd_ept_open(pudev, USBD_MSC_BULK_IN_EPT, EPT_BULK_TYPE, USBD_OUT_MAXPACKET_SIZE);
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/* open out endpoint */
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usbd_ept_open(pudev, USBD_MSC_BULK_OUT_EPT, EPT_BULK_TYPE, USBD_OUT_MAXPACKET_SIZE);
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bot_scsi_init(udev);
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return status;
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}
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/**
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* @brief clear endpoint or other state
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* @param udev: to the structure of usbd_core_type
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_clear_handler(void *udev)
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{
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usb_sts_type status = USB_OK;
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usbd_core_type *pudev = (usbd_core_type *)udev;
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/* close in endpoint */
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usbd_ept_close(pudev, USBD_MSC_BULK_IN_EPT);
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/* close out endpoint */
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usbd_ept_close(pudev, USBD_MSC_BULK_OUT_EPT);
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return status;
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}
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/**
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* @brief usb device class setup request handler
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* @param udev: to the structure of usbd_core_type
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* @param setup: setup packet
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_setup_handler(void *udev, usb_setup_type *setup)
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{
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usb_sts_type status = USB_OK;
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usbd_core_type *pudev = (usbd_core_type *)udev;
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switch(setup->bmRequestType & USB_REQ_TYPE_RESERVED)
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{
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/* class request */
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case USB_REQ_TYPE_CLASS:
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switch(setup->bRequest)
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{
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case MSC_REQ_GET_MAX_LUN:
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usbd_ctrl_send(pudev, &msc_struct.max_lun, 1);
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break;
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case MSC_REQ_BO_RESET:
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bot_scsi_reset(udev);
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usbd_ctrl_send_status(pudev);
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break;
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default:
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usbd_ctrl_unsupport(pudev);
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break;
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}
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break;
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/* standard request */
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case USB_REQ_TYPE_STANDARD:
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switch(setup->bRequest)
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{
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case USB_STD_REQ_GET_DESCRIPTOR:
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usbd_ctrl_unsupport(pudev);
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break;
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case USB_STD_REQ_GET_INTERFACE:
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usbd_ctrl_send(pudev, (uint8_t *)&alt_setting, 1);
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break;
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case USB_STD_REQ_SET_INTERFACE:
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alt_setting = setup->wValue;
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break;
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case USB_STD_REQ_CLEAR_FEATURE:
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usbd_ept_close(pudev, (uint8_t)setup->wIndex);
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if((setup->wIndex & 0x80) == 0x80)
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{
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usbd_ept_open(pudev, (uint8_t)setup->wIndex, EPT_BULK_TYPE, USBD_IN_MAXPACKET_SIZE);
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}
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else
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{
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usbd_ept_open(pudev, (uint8_t)setup->wIndex, EPT_BULK_TYPE, USBD_OUT_MAXPACKET_SIZE);
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}
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bot_scsi_clear_feature(udev, setup->wIndex);
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break;
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default:
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break;
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}
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break;
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default:
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usbd_ctrl_unsupport(pudev);
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break;
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}
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return status;
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}
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/**
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* @brief usb device endpoint 0 in status stage complete
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* @param udev: to the structure of usbd_core_type
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_ept0_tx_handler(void *udev)
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{
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usb_sts_type status = USB_OK;
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/* ...user code... */
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return status;
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}
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/**
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* @brief usb device endpoint 0 out status stage complete
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* @param udev: usb device core handler type
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_ept0_rx_handler(void *udev)
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{
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usb_sts_type status = USB_OK;
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usbd_core_type *pudev = (usbd_core_type *)udev;
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uint32_t recv_len = usbd_get_recv_len(pudev, 0);
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/* ...user code... */
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return status;
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}
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/**
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* @brief usb device transmision complete handler
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* @param udev: to the structure of usbd_core_type
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* @param ept_num: endpoint number
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_in_handler(void *udev, uint8_t ept_num)
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{
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usb_sts_type status = USB_OK;
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bot_scsi_datain_handler(udev, ept_num);
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return status;
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}
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/**
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* @brief usb device endpoint receive data
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* @param udev: to the structure of usbd_core_type
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* @param ept_num: endpoint number
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_out_handler(void *udev, uint8_t ept_num)
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{
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usb_sts_type status = USB_OK;
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bot_scsi_dataout_handler(udev, ept_num);
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return status;
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}
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/**
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* @brief usb device sof handler
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* @param udev: to the structure of usbd_core_type
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_sof_handler(void *udev)
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{
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usb_sts_type status = USB_OK;
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/* ...user code... */
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return status;
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}
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/**
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* @brief usb device event handler
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* @param udev: to the structure of usbd_core_type
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* @param event: usb device event
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* @retval status of usb_sts_type
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*/
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usb_sts_type class_event_handler(void *udev, usbd_event_type event)
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{
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usb_sts_type status = USB_OK;
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switch(event)
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{
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case USBD_RESET_EVENT:
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/* ...user code... */
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break;
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case USBD_SUSPEND_EVENT:
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/* ...user code... */
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break;
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case USBD_WAKEUP_EVENT:
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/* ...user code... */
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break;
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default:
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break;
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}
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return status;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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