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https://github.com/memtest86plus/memtest86plus.git
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90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef USB_H
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#define USB_H
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/*
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* Provides definitions of various values and data structures defined by the
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* USB specification.
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*
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* Copyright (C) 2021 Martin Whitaker.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#define USB_DESC_DEVICE 0x01
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#define USB_DESC_CONFIG 0x02
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#define USB_DESC_INTERFACE 0x04
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#define USB_DESC_ENDPOINT 0x05
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typedef volatile struct __attribute__((packed)) {
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uint8_t type;
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uint8_t request;
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uint16_t value;
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uint16_t index;
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uint16_t length;
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} usb_setup_pkt_t;
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typedef volatile struct __attribute__((packed)) {
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uint8_t length;
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uint8_t type;
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} usb_desc_header_t;
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typedef volatile struct __attribute__((packed)) {
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uint8_t length;
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uint8_t type;
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uint8_t usb_minor;
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uint8_t usb_major;
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uint8_t class;
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uint8_t subclass;
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uint8_t protocol;
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uint8_t max_packet_size;
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uint16_t vendor_id;
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uint16_t product_id;
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uint8_t device_minor;
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uint8_t device_major;
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uint8_t vendor_str;
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uint8_t product_str;
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uint8_t serial_num_str;
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uint8_t num_configs;
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} usb_device_desc_t;
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typedef volatile struct __attribute__((packed)) {
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uint8_t length;
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uint8_t type;
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uint16_t total_length;
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uint8_t num_interfaces;
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uint8_t config_num;
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uint8_t config_str;
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uint8_t attributes;
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uint8_t max_power;
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} usb_config_desc_t;
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typedef volatile struct __attribute__((packed)) {
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uint8_t length;
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uint8_t type;
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uint8_t interface_num;
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uint8_t alt_setting;
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uint8_t num_endpoints;
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uint8_t class;
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uint8_t subclass;
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uint8_t protocol;
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uint8_t interface_str;
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} usb_interface_desc_t;
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typedef volatile struct __attribute__((packed)) {
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uint8_t length;
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uint8_t type;
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uint8_t address;
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uint8_t attributes;
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uint16_t max_packet_size;
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uint8_t interval;
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} usb_endpoint_desc_t;
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typedef volatile struct __attribute__((packed)) {
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uint8_t modifiers;
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uint8_t reserved;
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uint8_t key_code[6];
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} hid_kbd_rpt_t;
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#endif // USB_H
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