/*
 * Copyright 2020, Jérôme Duval, jerome.duval@gmail.com.
 * Copyright 2008-2011, Michael Lotz <mmlr@mlotz.ch>
 * Copyright 2023 Vladimir Serbinenko <phcoder@gmail.com>
 * Distributed under the terms of the MIT license.
 */
#ifndef I2C_HID_PROTOCOL_H
#define I2C_HID_PROTOCOL_H

/* 5.1.1 - HID Descriptor Format */
typedef struct i2c_hid_descriptor {
        uint16 wHIDDescLength;
        uint16 bcdVersion;
        uint16 wReportDescLength;
        uint16 wReportDescRegister;
        uint16 wInputRegister;
        uint16 wMaxInputLength;
        uint16 wOutputRegister;
        uint16 wMaxOutputLength;
        uint16 wCommandRegister;
        uint16 wDataRegister;
        uint16 wVendorID;
        uint16 wProductID;
        uint16 wVersionID;
        uint32 reserved;
} _PACKED i2c_hid_descriptor;


enum {
        I2C_HID_CMD_RESET                       = 0x1,
        I2C_HID_CMD_GET_REPORT          = 0x2,
        I2C_HID_CMD_SET_REPORT          = 0x3,
        I2C_HID_CMD_GET_IDLE            = 0x4,
        I2C_HID_CMD_SET_IDLE            = 0x5,
        I2C_HID_CMD_GET_PROTOCOL        = 0x6,
        I2C_HID_CMD_SET_PROTOCOL        = 0x7,
        I2C_HID_CMD_SET_POWER           = 0x8,
};

enum {
        I2C_HID_POWER_ON        = 0x0,
        I2C_HID_POWER_OFF       = 0x1,
};

#endif // I2C_HID_PROTOCOL_H