341 lines
9.4 KiB
C
341 lines
9.4 KiB
C
/**
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**************************************************************************
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* @file hid_iap_class.c
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* @brief usb hid iap 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 "hid_iap_class.h"
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#include "hid_iap_desc.h"
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/** @addtogroup AT32F435_437_middlewares_usbd_class
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* @{
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*/
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/** @defgroup USB_hid_iap_class
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* @brief usb device class hid iap demo
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* @{
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*/
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/** @defgroup USB_hid_iap_class_private_functions
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* @{
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*/
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static usb_sts_type class_init_handler(void *udev);
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static usb_sts_type class_clear_handler(void *udev);
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static usb_sts_type class_setup_handler(void *udev, usb_setup_type *setup);
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static usb_sts_type class_ept0_tx_handler(void *udev);
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static usb_sts_type class_ept0_rx_handler(void *udev);
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static usb_sts_type class_in_handler(void *udev, uint8_t ept_num);
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static usb_sts_type class_out_handler(void *udev, uint8_t ept_num);
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static usb_sts_type class_sof_handler(void *udev);
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static usb_sts_type class_event_handler(void *udev, usbd_event_type event);
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iap_info_type iap_info;
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/* usb device class handler */
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usbd_class_handler hid_iap_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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&iap_info
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};
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/**
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* @brief initialize usb custom hid 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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static 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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iap_info_type *piap = (iap_info_type *)pudev->class_handler->pdata;
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/* open hid iap in endpoint */
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usbd_ept_open(pudev, USBD_HIDIAP_IN_EPT, EPT_INT_TYPE, USBD_HIDIAP_IN_MAXPACKET_SIZE);
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/* open hid iap out endpoint */
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usbd_ept_open(pudev, USBD_HIDIAP_OUT_EPT, EPT_INT_TYPE, USBD_HIDIAP_OUT_MAXPACKET_SIZE);
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/* set out endpoint to receive status */
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usbd_ept_recv(pudev, USBD_HIDIAP_OUT_EPT, piap->g_rxhid_buff, USBD_HIDIAP_OUT_MAXPACKET_SIZE);
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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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static 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 hid iap in endpoint */
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usbd_ept_close(pudev, USBD_HIDIAP_IN_EPT);
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/* close hid iap out endpoint */
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usbd_ept_close(pudev, USBD_HIDIAP_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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static 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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iap_info_type *piap = (iap_info_type *)pudev->class_handler->pdata;
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uint16_t len;
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uint8_t *buf;
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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 HID_REQ_SET_PROTOCOL:
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piap->hid_protocol = (uint8_t)setup->wValue;
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break;
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case HID_REQ_GET_PROTOCOL:
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usbd_ctrl_send(pudev, (uint8_t *)&piap->hid_protocol, 1);
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break;
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case HID_REQ_SET_IDLE:
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piap->hid_set_idle = (uint8_t)(setup->wValue >> 8);
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break;
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case HID_REQ_GET_IDLE:
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usbd_ctrl_send(pudev, (uint8_t *)&piap->hid_set_idle, 1);
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break;
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case HID_REQ_SET_REPORT:
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piap->hid_state = HID_REQ_SET_REPORT;
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usbd_ctrl_recv(pudev, piap->hid_set_report, setup->wLength);
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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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if(setup->wValue >> 8 == HID_REPORT_DESC)
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{
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len = MIN(USBD_HIDIAP_SIZ_REPORT_DESC, setup->wLength);
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buf = (uint8_t *)g_usbd_hidiap_report;
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}
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else if(setup->wValue >> 8 == HID_DESCRIPTOR_TYPE)
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{
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len = MIN(9, setup->wLength);
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buf = (uint8_t *)g_hidiap_usb_desc;
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}
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usbd_ctrl_send(pudev, (uint8_t *)buf, len);
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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 *)&piap->alt_setting, 1);
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break;
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case USB_STD_REQ_SET_INTERFACE:
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piap->alt_setting = setup->wValue;
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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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static 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: 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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static 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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iap_info_type *piap = (iap_info_type *)pudev->class_handler->pdata;
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uint32_t recv_len = usbd_get_recv_len(pudev, 0);
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/* ...user code... */
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if( piap->hid_state == HID_REQ_SET_REPORT)
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{
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/* hid buffer process */
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piap->hid_state = 0;
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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 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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static 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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/* ...user code...
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trans next packet data
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*/
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usbd_hid_iap_in_complete(udev);
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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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static 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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usbd_core_type *pudev = (usbd_core_type *)udev;
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iap_info_type *piap = (iap_info_type *)pudev->class_handler->pdata;
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/* get endpoint receive data length */
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uint32_t recv_len = usbd_get_recv_len(pudev, ept_num);
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/* hid iap process */
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usbd_hid_iap_process(udev, piap->g_rxhid_buff, recv_len);
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/* start receive next packet */
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usbd_ept_recv(pudev, USBD_HIDIAP_OUT_EPT, piap->g_rxhid_buff, USBD_HIDIAP_OUT_MAXPACKET_SIZE);
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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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static 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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static 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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* @brief usb device class send report
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* @param udev: to the structure of usbd_core_type
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* @param report: report buffer
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* @param len: report length
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* @retval status of usb_sts_type
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*/
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usb_sts_type usb_iap_class_send_report(void *udev, uint8_t *report, uint16_t len)
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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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if(usbd_connect_state_get(pudev) == USB_CONN_STATE_CONFIGURED)
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usbd_ept_send(pudev, USBD_HIDIAP_IN_EPT, report, len);
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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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