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OpenRGB/Controllers/ClevoKeyboardController/ClevoKeyboardController.cpp
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/*---------------------------------------------------------*\
| ClevoKeyboardController.cpp |
| |
| Driver for Clevo per-key RGB keyboard |
| Supports ITE 8291 (PID 0x600B) and ITE 829x (0x8910) |
| |
| Kyle Cascade (kyle@cascade.family) 16 Jan 2026 |
| Valentin Lobstein (balgogan@protonmail.com) 27 Mar 2026 |
| |
| This file is part of the OpenRGB project |
| SPDX-License-Identifier: GPL-2.0-or-later |
\*---------------------------------------------------------*/
#include <algorithm>
#include <cstring>
#include "ClevoKeyboardController.h"
#include "StringUtils.h"
ClevoKeyboardController::ClevoKeyboardController(hid_device* dev_handle, const hid_device_info& info, clevo_keyboard_type kb_type)
{
dev = dev_handle;
type = kb_type;
location = info.path;
version = info.release_number;
}
ClevoKeyboardController::~ClevoKeyboardController()
{
hid_close(dev);
}
clevo_keyboard_type ClevoKeyboardController::GetType()
{
return type;
}
int ClevoKeyboardController::GetNumRows()
{
return(type == CLEVO_KB_ITE829X) ? CLEVO_829X_NUM_ROWS : CLEVO_8291_NUM_ROWS;
}
int ClevoKeyboardController::GetNumCols()
{
return(type == CLEVO_KB_ITE829X) ? CLEVO_829X_NUM_COLS : CLEVO_8291_NUM_COLS;
}
int ClevoKeyboardController::GetNumLEDs()
{
return GetNumRows() * GetNumCols();
}
unsigned char ClevoKeyboardController::GetBrightnessMax()
{
return(type == CLEVO_KB_ITE829X) ? CLEVO_829X_BRIGHTNESS_MAX : CLEVO_8291_BRIGHTNESS_MAX;
}
std::string ClevoKeyboardController::GetDeviceLocation()
{
return("HID: " + location);
}
std::string ClevoKeyboardController::GetSerialString()
{
wchar_t serial_string[128];
int ret = hid_get_serial_number_string(dev, serial_string, 128);
if(ret != 0)
{
return("");
}
return(StringUtils::wstring_to_string(serial_string));
}
std::string ClevoKeyboardController::GetFirmwareVersion()
{
char version_string[16];
snprintf(version_string, sizeof(version_string), "%d.%02d", version >> 8, version & 0xFF);
return(version_string);
}
/*---------------------------------------------------------*\
| ITE 8291: 8-byte feature report, no report ID |
\*---------------------------------------------------------*/
void ClevoKeyboardController::WriteControl8291(unsigned char* data)
{
hid_send_feature_report(dev, data, CLEVO_8291_REPORT_SIZE);
}
void ClevoKeyboardController::WriteRowData(unsigned char* data)
{
hid_write(dev, data, CLEVO_8291_ROW_DATA_SIZE);
}
/*---------------------------------------------------------*\
| ITE 829x: 6-byte feature report with report ID 0xCC |
\*---------------------------------------------------------*/
void ClevoKeyboardController::SendCommand829x(unsigned char cmd, unsigned char d0, unsigned char d1, unsigned char d2, unsigned char d3)
{
unsigned char buf[CLEVO_829X_REPORT_SIZE];
buf[0] = CLEVO_829X_REPORT_ID;
buf[1] = cmd;
buf[2] = d0;
buf[3] = d1;
buf[4] = d2;
buf[5] = d3;
hid_send_feature_report(dev, buf, CLEVO_829X_REPORT_SIZE);
}
void ClevoKeyboardController::TurnOff()
{
if(type == CLEVO_KB_ITE829X)
{
SendCommand829x(CLEVO_829X_CMD_BRIGHTNESS);
return;
}
unsigned char buf[CLEVO_8291_REPORT_SIZE];
memset(buf, 0x00, CLEVO_8291_REPORT_SIZE);
buf[0] = CLEVO_8291_CMD_MODE;
buf[1] = CLEVO_8291_POWER_OFF;
WriteControl8291(buf);
}
void ClevoKeyboardController::SetMode(unsigned char mode, unsigned char brightness, unsigned char speed, unsigned char behaviour)
{
if(type == CLEVO_KB_ITE829X)
{
SendCommand829x(CLEVO_829X_CMD_BRIGHTNESS, brightness, speed);
return;
}
unsigned char buf[CLEVO_8291_REPORT_SIZE];
memset(buf, 0x00, CLEVO_8291_REPORT_SIZE);
buf[0] = CLEVO_8291_CMD_MODE;
buf[1] = CLEVO_8291_POWER_ON;
buf[2] = mode;
buf[3] = speed;
buf[4] = brightness;
buf[5] = CLEVO_8291_MODE_FLAG;
buf[6] = behaviour;
WriteControl8291(buf);
}
void ClevoKeyboardController::SetModeColor(unsigned char color_idx, RGBColor color)
{
if(type == CLEVO_KB_ITE829X)
{
return;
}
unsigned char buf[CLEVO_8291_REPORT_SIZE];
memset(buf, 0x00, CLEVO_8291_REPORT_SIZE);
buf[0] = CLEVO_8291_CMD_COLOR;
buf[2] = color_idx;
buf[3] = RGBGetRValue(color);
buf[4] = RGBGetGValue(color);
buf[5] = RGBGetBValue(color);
WriteControl8291(buf);
}
void ClevoKeyboardController::SetBrightnessSpeed829x(unsigned char brightness, unsigned char speed)
{
if(brightness > CLEVO_829X_BRIGHTNESS_MAX)
{
brightness = CLEVO_829X_BRIGHTNESS_MAX;
}
if(brightness != current_brightness_829x || speed != current_speed_829x)
{
current_brightness_829x = brightness;
current_speed_829x = speed;
SendCommand829x(CLEVO_829X_CMD_BRIGHTNESS, brightness, speed);
}
}
void ClevoKeyboardController::SendColorSlot829x(unsigned char cmd, unsigned char slot, RGBColor color)
{
SendCommand829x(cmd, slot, RGBGetRValue(color), RGBGetGValue(color), RGBGetBValue(color));
}
/*---------------------------------------------------------*\
| ITE 829x: Save/Clear BIOS keyboard state |
\*---------------------------------------------------------*/
void ClevoKeyboardController::SaveToBios829x()
{
SendCommand829x(CLEVO_829X_CMD_SAVE_BIOS, 0x01);
}
void ClevoKeyboardController::ClearBiosSave829x()
{
SendCommand829x(CLEVO_829X_CMD_SAVE_BIOS, 0x00);
}
void ClevoKeyboardController::StopAnimation829x()
{
SendCommand829x(CLEVO_829X_CMD_ANIM, CLEVO_829X_CMD_STOP_ANIM);
}
void ClevoKeyboardController::SetEffect829x(unsigned char mode_value, const std::vector<RGBColor>& colors, unsigned int direction, unsigned int color_mode)
{
bool mode_changed = (mode_value != current_mode_829x);
current_mode_829x = mode_value;
bool use_custom_color = (color_mode != MODE_COLORS_RANDOM) && !colors.empty();
/*---------------------------------------------------------*\
| Animation modes: send [CC, 00, mode_id] on mode change |
\*---------------------------------------------------------*/
struct anim_entry { unsigned char mode; unsigned char anim_id; };
static const anim_entry anim_modes[] =
{
{ CLEVO_829X_MODE_WAVE, 0x04 },
{ CLEVO_829X_MODE_RANDOM, 0x09 },
{ CLEVO_829X_MODE_SCAN, 0x0A },
{ CLEVO_829X_MODE_SNAKE, 0x0B },
{ CLEVO_829X_MODE_RAINBOW_CYCLE, 0x02 },
{ CLEVO_829X_MODE_RAINBOW_GRAD, 0x04 },
};
const anim_entry* anim_it = std::find_if(std::begin(anim_modes), std::end(anim_modes),
[mode_value](const anim_entry& e) { return e.mode == mode_value; });
if(anim_it != std::end(anim_modes) && mode_changed)
{
SendCommand829x(CLEVO_829X_CMD_ANIM, anim_it->anim_id);
}
/*---------------------------------------------------------*\
| Direction-based effects (Wave/Snake) |
| Slot = base + direction_index |
| Custom color: base = 0xA1, Preset: base = 0x71 |
\*---------------------------------------------------------*/
/*---------------------------------------------------------*\
| Map OpenRGB direction enum to firmware slot index |
\*---------------------------------------------------------*/
static const unsigned char dir_to_wave_idx[] =
{
6, /* MODE_DIRECTION_LEFT */
7, /* MODE_DIRECTION_RIGHT */
4, /* MODE_DIRECTION_UP */
5, /* MODE_DIRECTION_DOWN */
6, /* MODE_DIRECTION_HORIZONTAL */
4, /* MODE_DIRECTION_VERTICAL */
0, /* MODE_DIRECTION_UP_LEFT */
1, /* MODE_DIRECTION_UP_RIGHT */
2, /* MODE_DIRECTION_DOWN_LEFT */
3, /* MODE_DIRECTION_DOWN_RIGHT */
};
static const unsigned char dir_to_snake_idx[] =
{
0, /* MODE_DIRECTION_LEFT */
0, /* MODE_DIRECTION_RIGHT */
0, /* MODE_DIRECTION_UP */
0, /* MODE_DIRECTION_DOWN */
0, /* MODE_DIRECTION_HORIZONTAL */
0, /* MODE_DIRECTION_VERTICAL */
0, /* MODE_DIRECTION_UP_LEFT */
1, /* MODE_DIRECTION_UP_RIGHT */
2, /* MODE_DIRECTION_DOWN_LEFT */
3, /* MODE_DIRECTION_DOWN_RIGHT */
};
if((mode_value == CLEVO_829X_MODE_WAVE || mode_value == CLEVO_829X_MODE_RAINBOW_GRAD) && direction < sizeof(dir_to_wave_idx))
{
unsigned char base = use_custom_color ? CLEVO_829X_COLOR_SLOT_BASE : CLEVO_829X_PRESET_SLOT_BASE;
unsigned char idx = dir_to_wave_idx[direction];
unsigned char slot = base + idx;
if(use_custom_color)
{
SendColorSlot829x(CLEVO_829X_CMD_WAVE_COLOR, slot, colors[0]);
}
if(!use_custom_color)
{
SendCommand829x(CLEVO_829X_CMD_WAVE_COLOR, slot);
}
}
if(mode_value == CLEVO_829X_MODE_SNAKE && direction < sizeof(dir_to_snake_idx))
{
unsigned char base = use_custom_color ? CLEVO_829X_COLOR_SLOT_BASE : CLEVO_829X_PRESET_SLOT_BASE;
unsigned char idx = dir_to_snake_idx[direction];
unsigned char slot = base + idx;
if(use_custom_color)
{
SendColorSlot829x(CLEVO_829X_CMD_SNAKE_COLOR, slot, colors[0]);
}
if(!use_custom_color)
{
SendCommand829x(CLEVO_829X_CMD_SNAKE_COLOR, slot);
}
}
/*---------------------------------------------------------*\
| Breathing/Flashing: random or custom color |
\*---------------------------------------------------------*/
if(mode_value == CLEVO_829X_MODE_BREATH && use_custom_color)
{
SendColorSlot829x(0x0A, CLEVO_829X_COLOR_CUSTOM, colors[0]);
}
if(mode_value == CLEVO_829X_MODE_BREATH && !use_custom_color)
{
SendCommand829x(0x0A);
}
if(mode_value == CLEVO_829X_MODE_BLINK && use_custom_color)
{
SendColorSlot829x(0x0B, CLEVO_829X_COLOR_CUSTOM, colors[0]);
}
if(mode_value == CLEVO_829X_MODE_BLINK && !use_custom_color)
{
SendCommand829x(0x0B);
}
/*---------------------------------------------------------*\
| Random: custom color only (multicolor is the default) |
\*---------------------------------------------------------*/
if(mode_value == CLEVO_829X_MODE_RANDOM && use_custom_color)
{
SendColorSlot829x(CLEVO_829X_CMD_RANDOM_COLOR, CLEVO_829X_COLOR_SLOT_BASE, colors[0]);
}
/*---------------------------------------------------------*\
| Scan: 2 custom color bands |
\*---------------------------------------------------------*/
if(mode_value == CLEVO_829X_MODE_SCAN)
{
for(size_t i = 0; i < colors.size() && i < 2; i++)
{
SendColorSlot829x(CLEVO_829X_CMD_SCAN_COLOR, CLEVO_829X_COLOR_SLOT_BASE + (unsigned char)i, colors[i]);
}
}
/*---------------------------------------------------------*\
| Fn Highlight: per-key color on function keys |
\*---------------------------------------------------------*/
if(mode_value == CLEVO_829X_MODE_FN_COLOR && !colors.empty())
{
static const unsigned char fn_keys[] =
{
0x01, 0x02, 0x03, 0x05, 0x06, 0x07, 0x08, 0x09,
0x0A, 0x0B, 0x0C, 0x21, 0x23, 0x31, 0x32, 0x33,
0x53, 0x73, 0xA2
};
SendCommand829x(CLEVO_829X_CMD_ANIM, CLEVO_829X_CMD_CLEAR);
for(unsigned char key : fn_keys)
{
SendCommand829x(CLEVO_829X_CMD_SET_LED, key,
RGBGetRValue(colors[0]),
RGBGetGValue(colors[0]),
RGBGetBValue(colors[0]));
}
}
}
void ClevoKeyboardController::SendColors(const unsigned char* color_data, unsigned char brightness, unsigned char speed)
{
int num_rows = GetNumRows();
int num_cols = GetNumCols();
if(type == CLEVO_KB_ITE829X)
{
if(brightness > CLEVO_829X_BRIGHTNESS_MAX)
{
brightness = CLEVO_829X_BRIGHTNESS_MAX;
}
SendCommand829x(CLEVO_829X_CMD_BRIGHTNESS, brightness, speed);
for(int row = 0; row < num_rows; row++)
{
for(int col = 0; col < num_cols; col++)
{
int idx = (row * num_cols + col) * 3;
SendCommand829x(CLEVO_829X_CMD_SET_LED,
CLEVO_829X_LED_ID(row, col),
color_data[idx + 0],
color_data[idx + 1],
color_data[idx + 2]);
}
}
return;
}
/*---------------------------------------------------------*\
| ITE 8291: row-based color transfer |
\*---------------------------------------------------------*/
unsigned char ctrl_buf[CLEVO_8291_REPORT_SIZE];
unsigned char row_buf[CLEVO_8291_ROW_DATA_SIZE];
if(brightness > CLEVO_8291_BRIGHTNESS_MAX)
{
brightness = CLEVO_8291_BRIGHTNESS_MAX;
}
memset(ctrl_buf, 0x00, CLEVO_8291_REPORT_SIZE);
ctrl_buf[0] = CLEVO_8291_CMD_MODE;
ctrl_buf[1] = CLEVO_8291_POWER_ON;
ctrl_buf[2] = CLEVO_KEYBOARD_MODE_DIRECT;
ctrl_buf[4] = brightness;
WriteControl8291(ctrl_buf);
for(int row = 0; row < num_rows; row++)
{
memset(ctrl_buf, 0x00, CLEVO_8291_REPORT_SIZE);
ctrl_buf[0] = CLEVO_8291_CMD_ROW;
ctrl_buf[2] = row;
WriteControl8291(ctrl_buf);
memset(row_buf, 0x00, CLEVO_8291_ROW_DATA_SIZE);
for(int col = 0; col < num_cols; col++)
{
int idx = (row * num_cols + col) * 3;
row_buf[2 + col] = color_data[idx + 2];
row_buf[2 + num_cols + col] = color_data[idx + 1];
row_buf[2 + num_cols * 2 + col] = color_data[idx + 0];
}
WriteRowData(row_buf);
}
}
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