1 /*
2 * Copyright (c) 2022, sakumisu
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6 #include "usbd_core.h"
7 #include "usbd_hid.h"
8
hid_class_interface_request_handler(struct usb_setup_packet * setup,uint8_t ** data,uint32_t * len)9 static int hid_class_interface_request_handler(struct usb_setup_packet *setup, uint8_t **data, uint32_t *len)
10 {
11 USB_LOG_DBG("HID Class request: "
12 "bRequest 0x%02x\r\n",
13 setup->bRequest);
14
15 uint8_t intf_num = LO_BYTE(setup->wIndex);
16
17 switch (setup->bRequest) {
18 case HID_REQUEST_GET_REPORT:
19 /* report id ,report type */
20 usbd_hid_get_report(intf_num, LO_BYTE(setup->wValue), HI_BYTE(setup->wValue), data, len);
21 break;
22 case HID_REQUEST_GET_IDLE:
23 (*data)[0] = usbd_hid_get_idle(intf_num, LO_BYTE(setup->wValue));
24 *len = 1;
25 break;
26 case HID_REQUEST_GET_PROTOCOL:
27 (*data)[0] = usbd_hid_get_protocol(intf_num);
28 *len = 1;
29 break;
30 case HID_REQUEST_SET_REPORT:
31 /* report id ,report type, report, report len */
32 usbd_hid_set_report(intf_num, LO_BYTE(setup->wValue), HI_BYTE(setup->wValue), *data, *len);
33 break;
34 case HID_REQUEST_SET_IDLE:
35 /* report id, duration */
36 usbd_hid_set_idle(intf_num, LO_BYTE(setup->wValue), HI_BYTE(setup->wValue));
37 break;
38 case HID_REQUEST_SET_PROTOCOL:
39 /* protocol */
40 usbd_hid_set_protocol(intf_num, LO_BYTE(setup->wValue));
41 break;
42
43 default:
44 USB_LOG_WRN("Unhandled HID Class bRequest 0x%02x\r\n", setup->bRequest);
45 return -1;
46 }
47
48 return 0;
49 }
50
usbd_hid_init_intf(struct usbd_interface * intf,const uint8_t * desc,uint32_t desc_len)51 struct usbd_interface *usbd_hid_init_intf(struct usbd_interface *intf, const uint8_t *desc, uint32_t desc_len)
52 {
53 intf->class_interface_handler = hid_class_interface_request_handler;
54 intf->class_endpoint_handler = NULL;
55 intf->vendor_handler = NULL;
56 intf->notify_handler = NULL;
57
58 intf->hid_report_descriptor = desc;
59 intf->hid_report_descriptor_len = desc_len;
60 return intf;
61 }
62
usbd_hid_get_report(uint8_t intf,uint8_t report_id,uint8_t report_type,uint8_t ** data,uint32_t * len)63 __WEAK void usbd_hid_get_report(uint8_t intf, uint8_t report_id, uint8_t report_type, uint8_t **data, uint32_t *len)
64 {
65 (*data[0]) = 0;
66 *len = 1;
67 }
68
usbd_hid_get_idle(uint8_t intf,uint8_t report_id)69 __WEAK uint8_t usbd_hid_get_idle(uint8_t intf, uint8_t report_id)
70 {
71 return 0;
72 }
73
usbd_hid_get_protocol(uint8_t intf)74 __WEAK uint8_t usbd_hid_get_protocol(uint8_t intf)
75 {
76 return 0;
77 }
78
usbd_hid_set_report(uint8_t intf,uint8_t report_id,uint8_t report_type,uint8_t * report,uint32_t report_len)79 __WEAK void usbd_hid_set_report(uint8_t intf, uint8_t report_id, uint8_t report_type, uint8_t *report, uint32_t report_len)
80 {
81 }
82
usbd_hid_set_idle(uint8_t intf,uint8_t report_id,uint8_t duration)83 __WEAK void usbd_hid_set_idle(uint8_t intf, uint8_t report_id, uint8_t duration)
84 {
85 }
86
usbd_hid_set_protocol(uint8_t intf,uint8_t protocol)87 __WEAK void usbd_hid_set_protocol(uint8_t intf, uint8_t protocol)
88 {
89 }