151 lines
4.3 KiB
C
151 lines
4.3 KiB
C
/*
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* Copyright (c) 2022, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbd_core.h"
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#include "usbd_hid.h"
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static int hid_custom_request_handler(struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
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{
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USB_LOG_DBG("HID Custom request: "
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"bRequest 0x%02x\r\n",
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setup->bRequest);
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if (((setup->bmRequestType & USB_REQUEST_DIR_MASK) == USB_REQUEST_DIR_IN) &&
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setup->bRequest == USB_REQUEST_GET_DESCRIPTOR) {
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uint8_t value = (uint8_t)(setup->wValue >> 8);
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uint8_t intf_num = (uint8_t)setup->wIndex;
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usb_slist_t *i;
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struct usbd_interface *match_intf = NULL;
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usb_slist_for_each(i, &usbd_intf_head)
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{
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struct usbd_interface *intf = usb_slist_entry(i, struct usbd_interface, list);
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if (intf->intf_num == intf_num) {
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match_intf = intf;
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break;
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}
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}
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if (match_intf == NULL) {
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return -2;
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}
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switch (value) {
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case HID_DESCRIPTOR_TYPE_HID:
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USB_LOG_INFO("get HID Descriptor\r\n");
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// *data = (uint8_t *)match_intf->hid_descriptor;
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// *len = match_intf->hid_descriptor[0];
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break;
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case HID_DESCRIPTOR_TYPE_HID_REPORT:
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USB_LOG_INFO("get Report Descriptor\r\n");
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*data = (uint8_t *)match_intf->hid_report_descriptor;
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*len = match_intf->hid_report_descriptor_len;
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break;
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case HID_DESCRIPTOR_TYPE_HID_PHYSICAL:
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USB_LOG_INFO("get PHYSICAL Descriptor\r\n");
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break;
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default:
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return -2;
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}
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return 0;
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}
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return -1;
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}
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static int hid_class_request_handler(struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
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{
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USB_LOG_DBG("HID Class request: "
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"bRequest 0x%02x\r\n",
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setup->bRequest);
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uint8_t intf_num = LO_BYTE(setup->wIndex);
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switch (setup->bRequest) {
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case HID_REQUEST_GET_REPORT:
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/* report id ,report type */
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(*data)[0] = usbh_hid_get_report(intf_num, LO_BYTE(setup->wValue), HI_BYTE(setup->wValue));
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*len = 1;
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break;
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case HID_REQUEST_GET_IDLE:
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(*data)[0] = usbh_hid_get_idle(intf_num, LO_BYTE(setup->wValue));
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*len = 1;
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break;
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case HID_REQUEST_GET_PROTOCOL:
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(*data)[0] = usbh_hid_get_protocol(intf_num);
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*len = 1;
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break;
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case HID_REQUEST_SET_REPORT:
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/* report id ,report type, report, report len */
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usbh_hid_set_report(intf_num, LO_BYTE(setup->wValue), HI_BYTE(setup->wValue), *data, *len);
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break;
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case HID_REQUEST_SET_IDLE:
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/* report id, duration */
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usbh_hid_set_idle(intf_num, LO_BYTE(setup->wValue), HI_BYTE(setup->wIndex));
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break;
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case HID_REQUEST_SET_PROTOCOL:
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/* protocol */
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usbh_hid_set_protocol(intf_num, LO_BYTE(setup->wValue));
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break;
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default:
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USB_LOG_WRN("Unhandled HID Class bRequest 0x%02x\r\n", setup->bRequest);
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return -1;
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}
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return 0;
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}
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struct usbd_interface *usbd_hid_alloc_intf(const uint8_t *desc, uint32_t desc_len)
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{
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struct usbd_interface *intf = usb_malloc(sizeof(struct usbd_interface));
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if (intf == NULL) {
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USB_LOG_ERR("no mem to alloc intf\r\n");
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return NULL;
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}
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intf->class_handler = hid_class_request_handler;
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intf->custom_handler = hid_custom_request_handler;
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intf->vendor_handler = NULL;
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intf->notify_handler = NULL;
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intf->hid_report_descriptor = desc;
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intf->hid_report_descriptor_len = desc_len;
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return intf;
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}
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__WEAK uint8_t usbh_hid_get_report(uint8_t intf, uint8_t report_id, uint8_t report_type)
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{
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return 0;
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}
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__WEAK uint8_t usbh_hid_get_idle(uint8_t intf, uint8_t report_id)
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{
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return 0;
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}
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__WEAK uint8_t usbh_hid_get_protocol(uint8_t intf)
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{
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return 0;
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}
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__WEAK void usbh_hid_set_report(uint8_t intf, uint8_t report_id, uint8_t report_type, uint8_t *report, uint8_t report_len)
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{
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}
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__WEAK void usbh_hid_set_idle(uint8_t intf, uint8_t report_id, uint8_t duration)
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{
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}
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__WEAK void usbh_hid_set_protocol(uint8_t intf, uint8_t protocol)
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{
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} |