104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
#pragma once
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//
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// Created by thejackimonster on 29.03.23.
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//
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// Copyright (c) 2023 thejackimonster. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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#include <stdbool.h>
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#include <stdint.h>
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#include <libusb-1.0/libusb.h>
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#define DEVICE4_ACTION_PASSIVE_POLL_START 0b00010
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#define DEVICE4_ACTION_BRIGHTNESS_COMMAND 0b00011
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#define DEVICE4_ACTION_MANUAL_POLL_CLICK 0b00101
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#define DEVICE4_ACTION_ACTIVE_POLL 0b01001
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#define DEVICE4_ACTION_PASSIVE_POLL_END 0b10010
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#define DEVICE4_BUTTON_DISPLAY_TOGGLE 0x1
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#define DEVICE4_BUTTON_BRIGHTNESS_UP 0x2
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#define DEVICE4_BUTTON_BRIGHTNESS_DOWN 0x3
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struct __attribute__((__packed__)) device4_packet_t {
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uint8_t signature;
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uint32_t checksum;
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uint16_t length;
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uint8_t _padding0 [4];
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uint32_t timestamp;
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uint8_t action;
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uint8_t _padding1 [6];
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union {
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char text [42];
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uint8_t data [42];
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};
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};
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enum device4_event_t {
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DEVICE4_EVENT_UNKNOWN = 0,
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DEVICE4_EVENT_SCREEN_ON = 1,
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DEVICE4_EVENT_SCREEN_OFF = 2,
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DEVICE4_EVENT_BRIGHTNESS_SET = 3,
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DEVICE4_EVENT_BRIGHTNESS_UP = 4,
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DEVICE4_EVENT_BRIGHTNESS_DOWN = 5,
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DEVICE4_EVENT_MESSAGE = 6,
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};
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typedef struct device4_packet_t device4_packet_type;
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typedef enum device4_event_t device4_event_type;
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typedef void (*device4_event_callback)(
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uint32_t timestamp,
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device4_event_type event,
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uint8_t brightness,
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const char* msg
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);
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struct device4_t {
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uint16_t vendor_id;
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uint16_t product_id;
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libusb_context* context;
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libusb_device_handle* handle;
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uint8_t interface_number;
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uint8_t endpoint_address_in;
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uint8_t max_packet_size_in;
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uint8_t endpoint_address_out;
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uint8_t max_packet_size_out;
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bool detached;
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bool claimed;
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bool active;
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uint8_t brightness;
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device4_event_callback callback;
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};
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typedef struct device4_t device4_type;
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device4_type* device4_open(device4_event_callback callback);
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int device4_read(device4_type* device, int timeout);
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void device4_close(device4_type* device);
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