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114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
/*-----------------------------------------*\
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| PolychromeController.cpp |
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| Driver for for ASRock ASR LED and |
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| Polychrome RGB lighting controller |
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| Adam Honse (CalcProgrammer1) 12/14/2019 |
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\*-----------------------------------------*/
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#include "PolychromeController.h"
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#include <cstring>
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PolychromeController::PolychromeController(i2c_smbus_interface* bus, polychrome_dev_id dev)
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{
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this->bus = bus;
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this->dev = dev;
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unsigned short fw_version = GetFirmwareVersion();
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/*-----------------------------------------------------*\
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| Determine whether the device uses ASR LED or |
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| Polychrome protocol by checking firmware version. |
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| Versions 1.xx and 2.xx use ASR LED, 3.xx uses |
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| Polychrome |
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\*-----------------------------------------------------*/
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if(((fw_version >> 8) < 0x03) && ((fw_version >> 8) > 0x00))
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{
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snprintf(device_name, 32, "ASRock ASR LED FW %d.%02d", (fw_version >> 8), (fw_version & 0xFF));
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led_count = 1;
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asr_led = true;
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}
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else if(fw_version == 0x03)
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{
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snprintf(device_name, 32, "ASRock Polychrome FW %d.%02d", (fw_version >> 8), (fw_version & 0xFF));
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led_count = 1;
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asr_led = false;
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}
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else
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{
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led_count = 0;
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}
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}
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PolychromeController::~PolychromeController()
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{
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}
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char* PolychromeController::GetDeviceName()
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{
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return(device_name);
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}
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unsigned short PolychromeController::GetFirmwareVersion()
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{
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// The firmware register holds two bytes, so the first read should return 2
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// If not, report invalid firmware revision FFFF
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if (bus->i2c_smbus_read_byte_data(dev, POLYCHROME_REG_FIRMWARE_VER) == 0x02)
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{
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unsigned char major = bus->i2c_smbus_read_byte(dev);
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unsigned char minor = bus->i2c_smbus_read_byte(dev);
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return((major << 8) | minor);
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}
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else
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{
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return(0xFFFF);
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}
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}
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unsigned int PolychromeController::GetLEDCount()
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{
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return(led_count);
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}
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unsigned int PolychromeController::GetMode()
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{
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return(active_mode);
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}
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bool PolychromeController::IsAsrLed()
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{
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return(asr_led);
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}
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void PolychromeController::SetColor(unsigned char red, unsigned char green, unsigned char blue)
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{
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unsigned char colors[3] = { red, green, blue };
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if (asr_led)
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{
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bus->i2c_smbus_write_block_data(dev, active_mode, 3, colors);
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}
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else
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{
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bus->i2c_smbus_write_block_data(dev, POLYCHROME_REG_COLOR, 3, colors);
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}
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}
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void PolychromeController::SetMode(unsigned char mode)
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{
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active_mode = mode;
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if (asr_led)
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{
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bus->i2c_smbus_write_block_data(dev, ASRLED_REG_MODE, 1, &active_mode);
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}
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else
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{
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bus->i2c_smbus_write_block_data(dev, POLYCHROME_REG_MODE, 1, &active_mode);
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}
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}
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