Files
OpenRGB/Controllers/LianLiController/LianLiUniversalScreenController/LianLiUniversalScreenController.cpp

100 lines
3.1 KiB
C++

/*---------------------------------------------------------*\
| LianLiUniversalScreenController.cpp |
| |
| Driver for Lian Li 8.8" Universal Screen LEDs |
| |
| Adam Honse <calcprogrammer1@gmail.com> 17 Dec 2025 |
| |
| This file is part of the OpenRGB project |
| SPDX-License-Identifier: GPL-2.0-or-later |
\*---------------------------------------------------------*/
#include <cstring>
#include <iomanip>
#include <sstream>
#include "LianLiUniversalScreenController.h"
LianLiUniversalScreenController::LianLiUniversalScreenController(libusb_device_handle* device)
{
dev = device;
/*-----------------------------------------------------*\
| Fill in location string with USB ID |
\*-----------------------------------------------------*/
libusb_device_descriptor descriptor;
libusb_get_device_descriptor(libusb_get_device(dev), &descriptor);
std::stringstream location_stream;
location_stream << std::hex << std::setfill('0') << std::setw(4) << descriptor.idVendor << ":" << std::hex << std::setfill('0') << std::setw(4) << descriptor.idProduct;
location = location_stream.str();
/*-----------------------------------------------------*\
| Fill in the serial string from the string descriptor |
\*-----------------------------------------------------*/
char serialStr[64];
int ret = libusb_get_string_descriptor_ascii(dev, descriptor.iSerialNumber, reinterpret_cast<unsigned char*>(serialStr), sizeof(serialStr));
if(ret > 0)
{
serial = std::string(serialStr, ret);
}
}
LianLiUniversalScreenController::~LianLiUniversalScreenController()
{
if(dev)
{
libusb_close(dev);
}
}
std::string LianLiUniversalScreenController::GetLocation()
{
return("USB: " + location);
}
std::string LianLiUniversalScreenController::GetSerial()
{
return(serial);
}
std::string LianLiUniversalScreenController::GetVersion()
{
return("");
}
void LianLiUniversalScreenController::SetLedColors(RGBColor* colors, size_t count)
{
unsigned char leds_in_packet = 20;
unsigned char offset = 0;
unsigned char usb_buf[64];
memset(usb_buf, 0, sizeof(usb_buf));
do
{
usb_buf[0] = 0x11;
usb_buf[1] = offset;
usb_buf[2] = 0;
usb_buf[3] = 0;
if((count - offset) < leds_in_packet)
{
leds_in_packet = count - offset;
}
for(std::size_t led_idx = 0; led_idx < leds_in_packet; led_idx++)
{
usb_buf[4 + (led_idx * 3)] = RGBGetRValue(colors[offset + led_idx]);
usb_buf[5 + (led_idx * 3)] = RGBGetGValue(colors[offset + led_idx]);
usb_buf[6 + (led_idx * 3)] = RGBGetBValue(colors[offset + led_idx]);
}
offset += leds_in_packet;
int actual_length = sizeof(usb_buf);
libusb_bulk_transfer(dev, 1, usb_buf, sizeof(usb_buf), &actual_length, 25);
} while( offset < count );
}