225 lines
6.9 KiB
C
225 lines
6.9 KiB
C
/*
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* Copyright (c) 2022 HPMicro
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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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 HIDRAW_IN_EP 0x81
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#define HIDRAW_OUT_EP 0x02
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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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/*!< config descriptor size */
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#define USB_CONFIG_SIZE (9 + 9 + 9 + 7 + 7)
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/*!< custom hid report descriptor size */
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#define HID_CUSTOM_REPORT_DESC_SIZE 38
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#ifdef CONFIG_USB_HS
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#define HID_MAX_MPS 1024
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#define HIDRAW_IN_INTERVAL 1
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#else
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#define HID_MAX_MPS 64
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#define HIDRAW_IN_INTERVAL 1
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#endif
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static const uint8_t device_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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};
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static const uint8_t config_descriptor[] = {
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USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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HID_CUSTOM_INOUT_DESCRIPTOR_INIT(0x00, 0x01, HID_CUSTOM_REPORT_DESC_SIZE, HIDRAW_OUT_EP, HIDRAW_IN_EP, HID_MAX_MPS, HIDRAW_IN_INTERVAL),
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};
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static const uint8_t device_quality_descriptor[] = {
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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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0x00,
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0x00,
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};
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static const char *string_descriptors[] = {
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(const char[]){ 0x09, 0x04 }, /* Langid */
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"CherryUSB", /* Manufacturer */
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"CherryUSB HID DEMO", /* Product */
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"2022123456", /* Serial Number */
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};
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static const uint8_t *device_descriptor_callback(uint8_t speed)
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{
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return device_descriptor;
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}
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static const uint8_t *config_descriptor_callback(uint8_t speed)
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{
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return config_descriptor;
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}
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static const uint8_t *device_quality_descriptor_callback(uint8_t speed)
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{
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return device_quality_descriptor;
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}
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static const char *string_descriptor_callback(uint8_t speed, uint8_t index)
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{
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if (index > 3) {
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return NULL;
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}
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return string_descriptors[index];
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}
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const struct usb_descriptor hid_descriptor = {
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.device_descriptor_callback = device_descriptor_callback,
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.config_descriptor_callback = config_descriptor_callback,
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.device_quality_descriptor_callback = device_quality_descriptor_callback,
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.string_descriptor_callback = string_descriptor_callback
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};
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/*!< custom hid report descriptor */
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static const uint8_t hid_custom_report_desc[HID_CUSTOM_REPORT_DESC_SIZE] = {
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#ifdef CONFIG_USB_HS
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/* USER CODE BEGIN 0 */
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0x06, 0x00, 0xff, /* USAGE_PAGE (Vendor Defined Page 1) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0xa1, 0x01, /* COLLECTION (Application) */
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0x85, 0x02, /* REPORT ID (0x02) */
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0x09, 0x02, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x25, 0xff, /*LOGICAL_MAXIMUM (255) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x96, 0xff, 0x03, /* REPORT_COUNT (63) */
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0x81, 0x02, /* INPUT (Data,Var,Abs) */
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/* <___________________________________________________> */
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0x85, 0x01, /* REPORT ID (0x01) */
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0x09, 0x03, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x25, 0xff, /* LOGICAL_MAXIMUM (255) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x96, 0xff, 0x03, /* REPORT_COUNT (63) */
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0x91, 0x02, /* OUTPUT (Data,Var,Abs) */
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/* USER CODE END 0 */
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0xC0 /* END_COLLECTION */
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#else
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/* USER CODE BEGIN 0 */
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0x06, 0x00, 0xff, /* USAGE_PAGE (Vendor Defined Page 1) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0xa1, 0x01, /* COLLECTION (Application) */
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0x85, 0x02, /* REPORT ID (0x02) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */
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0x95, 0x40 - 1, /* REPORT_COUNT (63) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x81, 0x02, /* INPUT (Data,Var,Abs) */
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/* <___________________________________________________> */
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0x85, 0x01, /* REPORT ID (0x01) */
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0x09, 0x01, /* USAGE (Vendor Usage 1) */
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0x15, 0x00, /* LOGICAL_MINIMUM (0) */
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0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */
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0x95, 0x40 - 1, /* REPORT_COUNT (63) */
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0x75, 0x08, /* REPORT_SIZE (8) */
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0x91, 0x02, /* OUTPUT (Data,Var,Abs) */
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/* USER CODE END 0 */
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0xC0 /* END_COLLECTION */
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#endif
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};
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[HID_MAX_MPS];
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t send_buffer[HID_MAX_MPS];
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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 custom_state;
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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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/* setup first out ep read transfer */
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usbd_ep_start_read(busid, HIDRAW_OUT_EP, read_buffer, HID_MAX_MPS);
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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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static void usbd_hid_custom_in_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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(void)busid;
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(void)ep;
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USB_LOG_RAW("actual in len:%d\r\n", (unsigned int)nbytes);
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custom_state = HID_STATE_IDLE;
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}
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static void usbd_hid_custom_out_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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USB_LOG_RAW("actual out len:%d\r\n", (unsigned int)nbytes);
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usbd_ep_start_read(busid, ep, read_buffer, HID_MAX_MPS);
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read_buffer[0] = 0x02; /* IN: report id */
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usbd_ep_start_write(busid, HIDRAW_IN_EP, read_buffer, nbytes);
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}
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static struct usbd_endpoint custom_in_ep = {
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.ep_cb = usbd_hid_custom_in_callback,
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.ep_addr = HIDRAW_IN_EP
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};
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static struct usbd_endpoint custom_out_ep = {
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.ep_cb = usbd_hid_custom_out_callback,
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.ep_addr = HIDRAW_OUT_EP
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};
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/* function ------------------------------------------------------------------*/
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/**
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* @brief hid custom init
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* @pre none
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* @param[in] none
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* @retval none
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*/
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struct usbd_interface intf0;
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void hid_custom_init(uint8_t busid, uintptr_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_custom_report_desc, HID_CUSTOM_REPORT_DESC_SIZE));
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usbd_add_endpoint(busid, &custom_in_ep);
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usbd_add_endpoint(busid, &custom_out_ep);
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usbd_initialize(busid, reg_base, usbd_event_handler);
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}
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