248 lines
9.0 KiB
C
248 lines
9.0 KiB
C
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/*
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* Copyright (c) 2024, 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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#define USBD_VID 0xffff
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#define USBD_PID 0xffff
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#define USBD_MAX_POWER 100
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#define USBD_LANGID_STRING 1033
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#define HID_INT_EP 0x81
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#define HID_INT_EP_SIZE 8
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#define HID_INT_EP_INTERVAL 10
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#define USB_HID_CONFIG_DESC_SIZ 34
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#define HID_KEYBOARD_REPORT_DESC_SIZE 63
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static const uint8_t hid_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01),
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USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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/************** Descriptor of Joystick Mouse interface ****************/
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/* 09 */
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0x09, /* bLength: Interface Descriptor size */
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USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */
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0x00, /* bInterfaceNumber: Number of Interface */
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0x00, /* bAlternateSetting: Alternate setting */
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0x01, /* bNumEndpoints */
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0x03, /* bInterfaceClass: HID */
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0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
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0x01, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
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0, /* iInterface: Index of string descriptor */
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/******************** Descriptor of Joystick Mouse HID ********************/
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/* 18 */
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0x09, /* bLength: HID Descriptor size */
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HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
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0x11, /* bcdHID: HID Class Spec release number */
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0x01,
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0x00, /* bCountryCode: Hardware target country */
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0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
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0x22, /* bDescriptorType */
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HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
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0x00,
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/******************** Descriptor of Mouse endpoint ********************/
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/* 27 */
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0x07, /* bLength: Endpoint Descriptor size */
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USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
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HID_INT_EP, /* bEndpointAddress: Endpoint Address (IN) */
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0x03, /* bmAttributes: Interrupt endpoint */
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HID_INT_EP_SIZE, /* wMaxPacketSize: 4 Byte max */
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0x00,
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HID_INT_EP_INTERVAL, /* bInterval: Polling Interval */
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/* 34 */
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///////////////////////////////////////
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/// string0 descriptor
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///////////////////////////////////////
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USB_LANGID_INIT(USBD_LANGID_STRING),
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///////////////////////////////////////
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/// string1 descriptor
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///////////////////////////////////////
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0x14, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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///////////////////////////////////////
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/// string2 descriptor
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///////////////////////////////////////
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0x26, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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' ', 0x00, /* wcChar9 */
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'H', 0x00, /* wcChar10 */
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'I', 0x00, /* wcChar11 */
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'D', 0x00, /* wcChar12 */
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' ', 0x00, /* wcChar13 */
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'D', 0x00, /* wcChar14 */
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'E', 0x00, /* wcChar15 */
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'M', 0x00, /* wcChar16 */
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'O', 0x00, /* wcChar17 */
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///////////////////////////////////////
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/// string3 descriptor
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///////////////////////////////////////
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0x16, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'2', 0x00, /* wcChar0 */
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'0', 0x00, /* wcChar1 */
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'2', 0x00, /* wcChar2 */
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'2', 0x00, /* wcChar3 */
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'1', 0x00, /* wcChar4 */
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'2', 0x00, /* wcChar5 */
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'3', 0x00, /* wcChar6 */
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'4', 0x00, /* wcChar7 */
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'5', 0x00, /* wcChar8 */
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'6', 0x00, /* wcChar9 */
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#ifdef CONFIG_USB_HS
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///////////////////////////////////////
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/// device qualifier descriptor
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///////////////////////////////////////
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0x0a,
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USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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0x00,
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0x02,
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0x00,
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0x00,
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0x00,
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0x40,
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0x01,
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0x00,
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#endif
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0x00
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};
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/* USB HID device Configuration Descriptor */
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static uint8_t hid_desc[9] __ALIGN_END = {
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/* 18 */
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0x09, /* bLength: HID Descriptor size */
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HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
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0x11, /* bcdHID: HID Class Spec release number */
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0x01,
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0x00, /* bCountryCode: Hardware target country */
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0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
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0x22, /* bDescriptorType */
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HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
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0x00,
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};
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static const uint8_t hid_keyboard_report_desc[HID_KEYBOARD_REPORT_DESC_SIZE] = {
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0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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0x09, 0x06, // USAGE (Keyboard)
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0xa1, 0x01, // COLLECTION (Application)
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0x05, 0x07, // USAGE_PAGE (Keyboard)
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0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
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0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x75, 0x01, // REPORT_SIZE (1)
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0x95, 0x08, // REPORT_COUNT (8)
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0x81, 0x02, // INPUT (Data,Var,Abs)
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0x95, 0x01, // REPORT_COUNT (1)
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0x75, 0x08, // REPORT_SIZE (8)
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0x81, 0x03, // INPUT (Cnst,Var,Abs)
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0x95, 0x05, // REPORT_COUNT (5)
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0x75, 0x01, // REPORT_SIZE (1)
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0x05, 0x08, // USAGE_PAGE (LEDs)
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0x19, 0x01, // USAGE_MINIMUM (Num Lock)
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0x29, 0x05, // USAGE_MAXIMUM (Kana)
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0x91, 0x02, // OUTPUT (Data,Var,Abs)
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0x95, 0x01, // REPORT_COUNT (1)
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0x75, 0x03, // REPORT_SIZE (3)
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0x91, 0x03, // OUTPUT (Cnst,Var,Abs)
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0x95, 0x06, // REPORT_COUNT (6)
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0x75, 0x08, // REPORT_SIZE (8)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0xFF, // LOGICAL_MAXIMUM (255)
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0x05, 0x07, // USAGE_PAGE (Keyboard)
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0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
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0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
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0x81, 0x00, // INPUT (Data,Ary,Abs)
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0xc0 // END_COLLECTION
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};
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#define HID_STATE_IDLE 0
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#define HID_STATE_BUSY 1
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/*!< hid state ! Data can be sent only when state is idle */
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static volatile uint8_t hid_state = HID_STATE_IDLE;
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static void usbd_event_handler(uint8_t busid, uint8_t event)
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{
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switch (event) {
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case USBD_EVENT_RESET:
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break;
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case USBD_EVENT_CONNECTED:
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break;
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case USBD_EVENT_DISCONNECTED:
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break;
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case USBD_EVENT_RESUME:
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break;
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case USBD_EVENT_SUSPEND:
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break;
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case USBD_EVENT_CONFIGURED:
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hid_state = HID_STATE_IDLE;
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break;
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case USBD_EVENT_SET_REMOTE_WAKEUP:
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break;
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case USBD_EVENT_CLR_REMOTE_WAKEUP:
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break;
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default:
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break;
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}
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}
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void usbd_hid_int_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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hid_state = HID_STATE_IDLE;
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}
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static struct usbd_endpoint hid_in_ep = {
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.ep_cb = usbd_hid_int_callback,
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.ep_addr = HID_INT_EP
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};
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struct usbd_interface intf0;
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void hid_keyboard_init(uint8_t busid, uint32_t reg_base)
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{
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usbd_desc_register(busid, hid_descriptor);
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usbd_add_interface(busid, usbd_hid_init_intf(busid, &intf0, hid_keyboard_report_desc, HID_KEYBOARD_REPORT_DESC_SIZE));
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usbd_add_endpoint(busid, &hid_in_ep);
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usbd_initialize(busid, reg_base, usbd_event_handler);
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}
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[64];
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void hid_keyboard_test(uint8_t busid)
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{
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const uint8_t sendbuffer[8] = { 0x00, 0x00, HID_KBD_USAGE_A, 0x00, 0x00, 0x00, 0x00, 0x00 };
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memcpy(write_buffer, sendbuffer, 8);
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int ret = usbd_ep_start_write(busid, HID_INT_EP, write_buffer, 8);
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if (ret < 0) {
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return;
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}
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hid_state = HID_STATE_BUSY;
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while (hid_state == HID_STATE_BUSY) {
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}
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}
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