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| 1 | +/*---------------------------------------------------------*\ |
| 2 | +| ClevoKeyboardController.cpp | |
| 3 | +| | |
| 4 | +| Driver for Clevo laptop per-key RGB keyboard (ITE 8291) | |
| 5 | +| Protocol based on tuxedo-drivers ite_8291 module | |
| 6 | +| | |
| 7 | +| Kyle Cascade (kyle@cascade.family) 16 Jan 2026 | |
| 8 | +| | |
| 9 | +| This file is part of the OpenRGB project | |
| 10 | +| SPDX-License-Identifier: GPL-2.0-or-later | |
| 11 | +\*---------------------------------------------------------*/ |
| 12 | + |
| 13 | +#include "ClevoKeyboardController.h" |
| 14 | +#include <cstring> |
| 15 | + |
| 16 | +ClevoKeyboardController::ClevoKeyboardController(hid_device* dev_handle, const hid_device_info& info) |
| 17 | +{ |
| 18 | + dev = dev_handle; |
| 19 | + location = info.path; |
| 20 | +} |
| 21 | + |
| 22 | +ClevoKeyboardController::~ClevoKeyboardController() |
| 23 | +{ |
| 24 | + hid_close(dev); |
| 25 | +} |
| 26 | + |
| 27 | +std::string ClevoKeyboardController::GetDeviceLocation() |
| 28 | +{ |
| 29 | + return("HID: " + location); |
| 30 | +} |
| 31 | + |
| 32 | +std::string ClevoKeyboardController::GetSerialString() |
| 33 | +{ |
| 34 | + wchar_t serial_string[128]; |
| 35 | + int ret = hid_get_serial_number_string(dev, serial_string, 128); |
| 36 | + |
| 37 | + if(ret != 0) |
| 38 | + { |
| 39 | + return(""); |
| 40 | + } |
| 41 | + |
| 42 | + std::wstring return_wstring = serial_string; |
| 43 | + std::string return_string(return_wstring.begin(), return_wstring.end()); |
| 44 | + |
| 45 | + return(return_string); |
| 46 | +} |
| 47 | + |
| 48 | +void ClevoKeyboardController::WriteControl(unsigned char* data) |
| 49 | +{ |
| 50 | + hid_send_feature_report(dev, data, CLEVO_KEYBOARD_REPORT_SIZE); |
| 51 | +} |
| 52 | + |
| 53 | +void ClevoKeyboardController::WriteRowData(unsigned char* data) |
| 54 | +{ |
| 55 | + hid_write(dev, data, CLEVO_KEYBOARD_ROW_DATA_SIZE); |
| 56 | +} |
| 57 | + |
| 58 | +void ClevoKeyboardController::TurnOff() |
| 59 | +{ |
| 60 | + /*---------------------------------------------------------*\ |
| 61 | + | Turn off: 08 01 00 00 00 00 00 00 | |
| 62 | + \*---------------------------------------------------------*/ |
| 63 | + unsigned char buf[CLEVO_KEYBOARD_REPORT_SIZE]; |
| 64 | + |
| 65 | + memset(buf, 0x00, CLEVO_KEYBOARD_REPORT_SIZE); |
| 66 | + buf[0] = 0x08; |
| 67 | + buf[1] = 0x01; |
| 68 | + |
| 69 | + WriteControl(buf); |
| 70 | +} |
| 71 | + |
| 72 | +void ClevoKeyboardController::SetMode(unsigned char mode, unsigned char brightness, unsigned char speed, unsigned char behaviour) |
| 73 | +{ |
| 74 | + /*---------------------------------------------------------*\ |
| 75 | + | Set params: 08 [power] [mode] [speed] [brightness] 08 | |
| 76 | + | [behaviour] 00 | |
| 77 | + | power: 01=off, 02=on | |
| 78 | + \*---------------------------------------------------------*/ |
| 79 | + unsigned char buf[CLEVO_KEYBOARD_REPORT_SIZE]; |
| 80 | + |
| 81 | + memset(buf, 0x00, CLEVO_KEYBOARD_REPORT_SIZE); |
| 82 | + buf[0] = 0x08; |
| 83 | + buf[1] = 0x02; // Power on |
| 84 | + buf[2] = mode; |
| 85 | + buf[3] = speed; |
| 86 | + buf[4] = brightness; |
| 87 | + buf[5] = 0x08; |
| 88 | + buf[6] = behaviour; |
| 89 | + |
| 90 | + WriteControl(buf); |
| 91 | +} |
| 92 | + |
| 93 | +void ClevoKeyboardController::SetModeColor(unsigned char color_idx, unsigned char red, unsigned char green, unsigned char blue) |
| 94 | +{ |
| 95 | + /*---------------------------------------------------------*\ |
| 96 | + | Set color define: 14 00 [index] R G B 00 00 | |
| 97 | + | index: 1-7 for built-in effects | |
| 98 | + \*---------------------------------------------------------*/ |
| 99 | + unsigned char buf[CLEVO_KEYBOARD_REPORT_SIZE]; |
| 100 | + |
| 101 | + memset(buf, 0x00, CLEVO_KEYBOARD_REPORT_SIZE); |
| 102 | + buf[0] = 0x14; |
| 103 | + buf[1] = 0x00; |
| 104 | + buf[2] = color_idx; |
| 105 | + buf[3] = red; |
| 106 | + buf[4] = green; |
| 107 | + buf[5] = blue; |
| 108 | + |
| 109 | + WriteControl(buf); |
| 110 | +} |
| 111 | + |
| 112 | +void ClevoKeyboardController::SendColors(unsigned char* color_data, unsigned char brightness) |
| 113 | +{ |
| 114 | + /*---------------------------------------------------------*\ |
| 115 | + | Per-key RGB mode (mode 0x33) | |
| 116 | + | 1. Set params with mode 0x33 and brightness | |
| 117 | + | 2. For each row 0-5: | |
| 118 | + | - Announce row: 16 00 [row] 00 00 00 00 00 | |
| 119 | + | - Send 65 bytes row data via output report | |
| 120 | + | | |
| 121 | + | Row data format (65 bytes): | |
| 122 | + | [0x00 padding][0x00 padding] | |
| 123 | + | [B0..B20][G0..G20][R0..R20] | |
| 124 | + \*---------------------------------------------------------*/ |
| 125 | + unsigned char ctrl_buf[CLEVO_KEYBOARD_REPORT_SIZE]; |
| 126 | + unsigned char row_buf[CLEVO_KEYBOARD_ROW_DATA_SIZE]; |
| 127 | + |
| 128 | + /*---------------------------------------------------------*\ |
| 129 | + | Clamp brightness | |
| 130 | + \*---------------------------------------------------------*/ |
| 131 | + if(brightness > CLEVO_KEYBOARD_BRIGHTNESS_MAX) |
| 132 | + { |
| 133 | + brightness = CLEVO_KEYBOARD_BRIGHTNESS_MAX; |
| 134 | + } |
| 135 | + |
| 136 | + /*---------------------------------------------------------*\ |
| 137 | + | Set params for per-key mode | |
| 138 | + \*---------------------------------------------------------*/ |
| 139 | + memset(ctrl_buf, 0x00, CLEVO_KEYBOARD_REPORT_SIZE); |
| 140 | + ctrl_buf[0] = 0x08; |
| 141 | + ctrl_buf[1] = 0x02; // Power on |
| 142 | + ctrl_buf[2] = CLEVO_KEYBOARD_MODE_DIRECT; // Per-key mode |
| 143 | + ctrl_buf[3] = 0x00; // Speed (unused) |
| 144 | + ctrl_buf[4] = brightness; |
| 145 | + ctrl_buf[5] = 0x00; |
| 146 | + ctrl_buf[6] = 0x00; |
| 147 | + |
| 148 | + WriteControl(ctrl_buf); |
| 149 | + |
| 150 | + /*---------------------------------------------------------*\ |
| 151 | + | Send each row | |
| 152 | + \*---------------------------------------------------------*/ |
| 153 | + for(int row = 0; row < CLEVO_KEYBOARD_NUM_ROWS; row++) |
| 154 | + { |
| 155 | + /*-----------------------------------------------------*\ |
| 156 | + | Announce row data | |
| 157 | + \*-----------------------------------------------------*/ |
| 158 | + memset(ctrl_buf, 0x00, CLEVO_KEYBOARD_REPORT_SIZE); |
| 159 | + ctrl_buf[0] = 0x16; |
| 160 | + ctrl_buf[1] = 0x00; |
| 161 | + ctrl_buf[2] = row; |
| 162 | + |
| 163 | + WriteControl(ctrl_buf); |
| 164 | + |
| 165 | + /*-----------------------------------------------------*\ |
| 166 | + | Build row data buffer | |
| 167 | + | Format: [pad][pad][B0..B20][G0..G20][R0..R20] | |
| 168 | + \*-----------------------------------------------------*/ |
| 169 | + memset(row_buf, 0x00, CLEVO_KEYBOARD_ROW_DATA_SIZE); |
| 170 | + |
| 171 | + for(int col = 0; col < CLEVO_KEYBOARD_NUM_COLS; col++) |
| 172 | + { |
| 173 | + int led_idx = (row * CLEVO_KEYBOARD_NUM_COLS) + col; |
| 174 | + int color_offset = led_idx * 3; |
| 175 | + |
| 176 | + unsigned char red = color_data[color_offset + 0]; |
| 177 | + unsigned char green = color_data[color_offset + 1]; |
| 178 | + unsigned char blue = color_data[color_offset + 2]; |
| 179 | + |
| 180 | + /*-------------------------------------------------*\ |
| 181 | + | Row data layout (after 2-byte padding): | |
| 182 | + | Bytes 2-22: Blue values for columns 0-20 | |
| 183 | + | Bytes 23-43: Green values for columns 0-20 | |
| 184 | + | Bytes 44-64: Red values for columns 0-20 | |
| 185 | + \*-------------------------------------------------*/ |
| 186 | + row_buf[2 + col] = blue; |
| 187 | + row_buf[2 + CLEVO_KEYBOARD_NUM_COLS + col] = green; |
| 188 | + row_buf[2 + CLEVO_KEYBOARD_NUM_COLS*2 + col] = red; |
| 189 | + } |
| 190 | + |
| 191 | + WriteRowData(row_buf); |
| 192 | + } |
| 193 | +} |
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