/* * Copyright (c) 2022 HPMicro * * SPDX-License-Identifier: BSD-3-Clause * */ #include "usbd_core.h" #include "usbd_hid.h" #define HIDRAW_IN_EP 0x81 #define HIDRAW_OUT_EP 0x02 #define USBD_VID 0xffff #define USBD_PID 0xffff #define USBD_MAX_POWER 100 #define USBD_LANGID_STRING 1033 /*!< config descriptor size */ #define USB_CONFIG_SIZE (9 + 9 + 9 + 7 + 7) /*!< custom hid report descriptor size */ #define HID_CUSTOM_REPORT_DESC_SIZE 38 #ifdef CONFIG_USB_HS #define HID_MAX_MPS 1024 #define HIDRAW_IN_INTERVAL 1 #else #define HID_MAX_MPS 64 #define HIDRAW_IN_INTERVAL 1 #endif static const uint8_t device_descriptor[] = { USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0002, 0x01) }; static const uint8_t config_descriptor[] = { USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER), HID_CUSTOM_INOUT_DESCRIPTOR_INIT(0x00, 0x01, HID_CUSTOM_REPORT_DESC_SIZE, HIDRAW_OUT_EP, HIDRAW_IN_EP, HID_MAX_MPS, HIDRAW_IN_INTERVAL), }; static const uint8_t device_quality_descriptor[] = { /////////////////////////////////////// /// device qualifier descriptor /////////////////////////////////////// 0x0a, USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER, 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, }; static const char *string_descriptors[] = { (const char[]){ 0x09, 0x04 }, /* Langid */ "CherryUSB", /* Manufacturer */ "CherryUSB HID DEMO", /* Product */ "2022123456", /* Serial Number */ }; static const uint8_t *device_descriptor_callback(uint8_t speed) { return device_descriptor; } static const uint8_t *config_descriptor_callback(uint8_t speed) { return config_descriptor; } static const uint8_t *device_quality_descriptor_callback(uint8_t speed) { return device_quality_descriptor; } static const char *string_descriptor_callback(uint8_t speed, uint8_t index) { if (index > 3) { return NULL; } return string_descriptors[index]; } const struct usb_descriptor hid_descriptor = { .device_descriptor_callback = device_descriptor_callback, .config_descriptor_callback = config_descriptor_callback, .device_quality_descriptor_callback = device_quality_descriptor_callback, .string_descriptor_callback = string_descriptor_callback }; /*!< custom hid report descriptor */ static const uint8_t hid_custom_report_desc[HID_CUSTOM_REPORT_DESC_SIZE] = { #ifdef CONFIG_USB_HS /* USER CODE BEGIN 0 */ 0x06, 0x00, 0xff, /* USAGE_PAGE (Vendor Defined Page 1) */ 0x09, 0x01, /* USAGE (Vendor Usage 1) */ 0xa1, 0x01, /* COLLECTION (Application) */ 0x85, 0x02, /* REPORT ID (0x02) */ 0x09, 0x02, /* USAGE (Vendor Usage 1) */ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 0x25, 0xff, /*LOGICAL_MAXIMUM (255) */ 0x75, 0x08, /* REPORT_SIZE (8) */ 0x96, 0xff, 0x03, /* REPORT_COUNT (63) */ 0x81, 0x02, /* INPUT (Data,Var,Abs) */ /* <___________________________________________________> */ 0x85, 0x01, /* REPORT ID (0x01) */ 0x09, 0x03, /* USAGE (Vendor Usage 1) */ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 0x25, 0xff, /* LOGICAL_MAXIMUM (255) */ 0x75, 0x08, /* REPORT_SIZE (8) */ 0x96, 0xff, 0x03, /* REPORT_COUNT (63) */ 0x91, 0x02, /* OUTPUT (Data,Var,Abs) */ /* USER CODE END 0 */ 0xC0 /* END_COLLECTION */ #else /* USER CODE BEGIN 0 */ 0x06, 0x00, 0xff, /* USAGE_PAGE (Vendor Defined Page 1) */ 0x09, 0x01, /* USAGE (Vendor Usage 1) */ 0xa1, 0x01, /* COLLECTION (Application) */ 0x85, 0x02, /* REPORT ID (0x02) */ 0x09, 0x01, /* USAGE (Vendor Usage 1) */ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */ 0x95, 0x40 - 1, /* REPORT_COUNT (63) */ 0x75, 0x08, /* REPORT_SIZE (8) */ 0x81, 0x02, /* INPUT (Data,Var,Abs) */ /* <___________________________________________________> */ 0x85, 0x01, /* REPORT ID (0x01) */ 0x09, 0x01, /* USAGE (Vendor Usage 1) */ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */ 0x95, 0x40 - 1, /* REPORT_COUNT (63) */ 0x75, 0x08, /* REPORT_SIZE (8) */ 0x91, 0x02, /* OUTPUT (Data,Var,Abs) */ /* USER CODE END 0 */ 0xC0 /* END_COLLECTION */ #endif }; USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[HID_MAX_MPS]; USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t send_buffer[HID_MAX_MPS]; #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 custom_state; 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: /* setup first out ep read transfer */ usbd_ep_start_read(busid, HIDRAW_OUT_EP, read_buffer, HID_MAX_MPS); break; case USBD_EVENT_SET_REMOTE_WAKEUP: break; case USBD_EVENT_CLR_REMOTE_WAKEUP: break; default: break; } } static void usbd_hid_custom_in_callback(uint8_t busid, uint8_t ep, uint32_t nbytes) { (void)busid; (void)ep; USB_LOG_RAW("actual in len:%d\r\n", (unsigned int)nbytes); custom_state = HID_STATE_IDLE; } static void usbd_hid_custom_out_callback(uint8_t busid, uint8_t ep, uint32_t nbytes) { USB_LOG_RAW("actual out len:%d\r\n", (unsigned int)nbytes); usbd_ep_start_read(busid, ep, read_buffer, HID_MAX_MPS); read_buffer[0] = 0x02; /* IN: report id */ usbd_ep_start_write(busid, HIDRAW_IN_EP, read_buffer, nbytes); } static struct usbd_endpoint custom_in_ep = { .ep_cb = usbd_hid_custom_in_callback, .ep_addr = HIDRAW_IN_EP }; static struct usbd_endpoint custom_out_ep = { .ep_cb = usbd_hid_custom_out_callback, .ep_addr = HIDRAW_OUT_EP }; /* function ------------------------------------------------------------------*/ /** * @brief hid custom init * @pre none * @param[in] none * @retval none */ struct usbd_interface intf0; void hid_custom_init(uint8_t busid, uintptr_t reg_base) { usbd_desc_register(busid, &hid_descriptor); usbd_add_interface(busid, usbd_hid_init_intf(busid, &intf0, hid_custom_report_desc, HID_CUSTOM_REPORT_DESC_SIZE)); usbd_add_endpoint(busid, &custom_in_ep); usbd_add_endpoint(busid, &custom_out_ep); usbd_initialize(busid, reg_base, usbd_event_handler); }