248 lines
9.0 KiB
C
248 lines
9.0 KiB
C
/*
|
|
* Copyright (c) 2024, sakumisu
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
#include "usbd_core.h"
|
|
#include "usbd_hid.h"
|
|
|
|
#define USBD_VID 0xffff
|
|
#define USBD_PID 0xffff
|
|
#define USBD_MAX_POWER 100
|
|
#define USBD_LANGID_STRING 1033
|
|
|
|
#define HID_INT_EP 0x81
|
|
#define HID_INT_EP_SIZE 8
|
|
#define HID_INT_EP_INTERVAL 10
|
|
|
|
#define USB_HID_CONFIG_DESC_SIZ 34
|
|
#define HID_KEYBOARD_REPORT_DESC_SIZE 63
|
|
|
|
static const uint8_t hid_descriptor[] = {
|
|
USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01),
|
|
USB_CONFIG_DESCRIPTOR_INIT(USB_HID_CONFIG_DESC_SIZ, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
|
|
|
|
/************** Descriptor of Joystick Mouse interface ****************/
|
|
/* 09 */
|
|
0x09, /* bLength: Interface Descriptor size */
|
|
USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType: Interface descriptor type */
|
|
0x00, /* bInterfaceNumber: Number of Interface */
|
|
0x00, /* bAlternateSetting: Alternate setting */
|
|
0x01, /* bNumEndpoints */
|
|
0x03, /* bInterfaceClass: HID */
|
|
0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
|
|
0x01, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
|
|
0, /* iInterface: Index of string descriptor */
|
|
/******************** Descriptor of Joystick Mouse HID ********************/
|
|
/* 18 */
|
|
0x09, /* bLength: HID Descriptor size */
|
|
HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
|
|
0x11, /* bcdHID: HID Class Spec release number */
|
|
0x01,
|
|
0x00, /* bCountryCode: Hardware target country */
|
|
0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
|
|
0x22, /* bDescriptorType */
|
|
HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
|
|
0x00,
|
|
/******************** Descriptor of Mouse endpoint ********************/
|
|
/* 27 */
|
|
0x07, /* bLength: Endpoint Descriptor size */
|
|
USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: */
|
|
HID_INT_EP, /* bEndpointAddress: Endpoint Address (IN) */
|
|
0x03, /* bmAttributes: Interrupt endpoint */
|
|
HID_INT_EP_SIZE, /* wMaxPacketSize: 4 Byte max */
|
|
0x00,
|
|
HID_INT_EP_INTERVAL, /* bInterval: Polling Interval */
|
|
/* 34 */
|
|
///////////////////////////////////////
|
|
/// string0 descriptor
|
|
///////////////////////////////////////
|
|
USB_LANGID_INIT(USBD_LANGID_STRING),
|
|
///////////////////////////////////////
|
|
/// string1 descriptor
|
|
///////////////////////////////////////
|
|
0x14, /* bLength */
|
|
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
|
|
'C', 0x00, /* wcChar0 */
|
|
'h', 0x00, /* wcChar1 */
|
|
'e', 0x00, /* wcChar2 */
|
|
'r', 0x00, /* wcChar3 */
|
|
'r', 0x00, /* wcChar4 */
|
|
'y', 0x00, /* wcChar5 */
|
|
'U', 0x00, /* wcChar6 */
|
|
'S', 0x00, /* wcChar7 */
|
|
'B', 0x00, /* wcChar8 */
|
|
///////////////////////////////////////
|
|
/// string2 descriptor
|
|
///////////////////////////////////////
|
|
0x26, /* bLength */
|
|
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
|
|
'C', 0x00, /* wcChar0 */
|
|
'h', 0x00, /* wcChar1 */
|
|
'e', 0x00, /* wcChar2 */
|
|
'r', 0x00, /* wcChar3 */
|
|
'r', 0x00, /* wcChar4 */
|
|
'y', 0x00, /* wcChar5 */
|
|
'U', 0x00, /* wcChar6 */
|
|
'S', 0x00, /* wcChar7 */
|
|
'B', 0x00, /* wcChar8 */
|
|
' ', 0x00, /* wcChar9 */
|
|
'H', 0x00, /* wcChar10 */
|
|
'I', 0x00, /* wcChar11 */
|
|
'D', 0x00, /* wcChar12 */
|
|
' ', 0x00, /* wcChar13 */
|
|
'D', 0x00, /* wcChar14 */
|
|
'E', 0x00, /* wcChar15 */
|
|
'M', 0x00, /* wcChar16 */
|
|
'O', 0x00, /* wcChar17 */
|
|
///////////////////////////////////////
|
|
/// string3 descriptor
|
|
///////////////////////////////////////
|
|
0x16, /* bLength */
|
|
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
|
|
'2', 0x00, /* wcChar0 */
|
|
'0', 0x00, /* wcChar1 */
|
|
'2', 0x00, /* wcChar2 */
|
|
'2', 0x00, /* wcChar3 */
|
|
'1', 0x00, /* wcChar4 */
|
|
'2', 0x00, /* wcChar5 */
|
|
'3', 0x00, /* wcChar6 */
|
|
'4', 0x00, /* wcChar7 */
|
|
'5', 0x00, /* wcChar8 */
|
|
'6', 0x00, /* wcChar9 */
|
|
#ifdef CONFIG_USB_HS
|
|
///////////////////////////////////////
|
|
/// device qualifier descriptor
|
|
///////////////////////////////////////
|
|
0x0a,
|
|
USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
|
|
0x00,
|
|
0x02,
|
|
0x00,
|
|
0x00,
|
|
0x00,
|
|
0x40,
|
|
0x01,
|
|
0x00,
|
|
#endif
|
|
0x00
|
|
};
|
|
|
|
/* USB HID device Configuration Descriptor */
|
|
static uint8_t hid_desc[9] __ALIGN_END = {
|
|
/* 18 */
|
|
0x09, /* bLength: HID Descriptor size */
|
|
HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
|
|
0x11, /* bcdHID: HID Class Spec release number */
|
|
0x01,
|
|
0x00, /* bCountryCode: Hardware target country */
|
|
0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
|
|
0x22, /* bDescriptorType */
|
|
HID_KEYBOARD_REPORT_DESC_SIZE, /* wItemLength: Total length of Report descriptor */
|
|
0x00,
|
|
};
|
|
|
|
static const uint8_t hid_keyboard_report_desc[HID_KEYBOARD_REPORT_DESC_SIZE] = {
|
|
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
|
|
0x09, 0x06, // USAGE (Keyboard)
|
|
0xa1, 0x01, // COLLECTION (Application)
|
|
0x05, 0x07, // USAGE_PAGE (Keyboard)
|
|
0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
|
|
0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
|
|
0x15, 0x00, // LOGICAL_MINIMUM (0)
|
|
0x25, 0x01, // LOGICAL_MAXIMUM (1)
|
|
0x75, 0x01, // REPORT_SIZE (1)
|
|
0x95, 0x08, // REPORT_COUNT (8)
|
|
0x81, 0x02, // INPUT (Data,Var,Abs)
|
|
0x95, 0x01, // REPORT_COUNT (1)
|
|
0x75, 0x08, // REPORT_SIZE (8)
|
|
0x81, 0x03, // INPUT (Cnst,Var,Abs)
|
|
0x95, 0x05, // REPORT_COUNT (5)
|
|
0x75, 0x01, // REPORT_SIZE (1)
|
|
0x05, 0x08, // USAGE_PAGE (LEDs)
|
|
0x19, 0x01, // USAGE_MINIMUM (Num Lock)
|
|
0x29, 0x05, // USAGE_MAXIMUM (Kana)
|
|
0x91, 0x02, // OUTPUT (Data,Var,Abs)
|
|
0x95, 0x01, // REPORT_COUNT (1)
|
|
0x75, 0x03, // REPORT_SIZE (3)
|
|
0x91, 0x03, // OUTPUT (Cnst,Var,Abs)
|
|
0x95, 0x06, // REPORT_COUNT (6)
|
|
0x75, 0x08, // REPORT_SIZE (8)
|
|
0x15, 0x00, // LOGICAL_MINIMUM (0)
|
|
0x25, 0xFF, // LOGICAL_MAXIMUM (255)
|
|
0x05, 0x07, // USAGE_PAGE (Keyboard)
|
|
0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
|
|
0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
|
|
0x81, 0x00, // INPUT (Data,Ary,Abs)
|
|
0xc0 // END_COLLECTION
|
|
};
|
|
|
|
#define HID_STATE_IDLE 0
|
|
#define HID_STATE_BUSY 1
|
|
|
|
/*!< hid state ! Data can be sent only when state is idle */
|
|
static volatile uint8_t hid_state = HID_STATE_IDLE;
|
|
|
|
static void usbd_event_handler(uint8_t busid, uint8_t event)
|
|
{
|
|
switch (event) {
|
|
case USBD_EVENT_RESET:
|
|
break;
|
|
case USBD_EVENT_CONNECTED:
|
|
break;
|
|
case USBD_EVENT_DISCONNECTED:
|
|
break;
|
|
case USBD_EVENT_RESUME:
|
|
break;
|
|
case USBD_EVENT_SUSPEND:
|
|
break;
|
|
case USBD_EVENT_CONFIGURED:
|
|
hid_state = HID_STATE_IDLE;
|
|
break;
|
|
case USBD_EVENT_SET_REMOTE_WAKEUP:
|
|
break;
|
|
case USBD_EVENT_CLR_REMOTE_WAKEUP:
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void usbd_hid_int_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
|
|
{
|
|
hid_state = HID_STATE_IDLE;
|
|
}
|
|
|
|
static struct usbd_endpoint hid_in_ep = {
|
|
.ep_cb = usbd_hid_int_callback,
|
|
.ep_addr = HID_INT_EP
|
|
};
|
|
|
|
struct usbd_interface intf0;
|
|
|
|
void hid_keyboard_init(uint8_t busid, uint32_t reg_base)
|
|
{
|
|
usbd_desc_register(busid, hid_descriptor);
|
|
usbd_add_interface(busid, usbd_hid_init_intf(busid, &intf0, hid_keyboard_report_desc, HID_KEYBOARD_REPORT_DESC_SIZE));
|
|
usbd_add_endpoint(busid, &hid_in_ep);
|
|
|
|
usbd_initialize(busid, reg_base, usbd_event_handler);
|
|
}
|
|
|
|
USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[64];
|
|
|
|
void hid_keyboard_test(uint8_t busid)
|
|
{
|
|
const uint8_t sendbuffer[8] = { 0x00, 0x00, HID_KBD_USAGE_A, 0x00, 0x00, 0x00, 0x00, 0x00 };
|
|
|
|
memcpy(write_buffer, sendbuffer, 8);
|
|
int ret = usbd_ep_start_write(busid, HID_INT_EP, write_buffer, 8);
|
|
if (ret < 0) {
|
|
return;
|
|
}
|
|
hid_state = HID_STATE_BUSY;
|
|
while (hid_state == HID_STATE_BUSY) {
|
|
}
|
|
}
|