Initial driver for Sapphire GPU (tested on RX580 Nitro+ on Windows)

Controllers/SapphireGPUController/SapphireGPUController.h

@@ -0,0 +1,41 @@
+/*-----------------------------------------*\
+|  SapphireGPUController.h                  |
+|                                           |
+|  Definitions and types for Sapphire Nitro |
+|  Glow GPU RGB lighting controller         |
+|                                           |
+|  Adam Honse (CalcProgrammer1) 7/15/2020   |
+\*-----------------------------------------*/
+
+#include <string>
+#include "i2c_smbus.h"
+
+#pragma once
+
+typedef unsigned char	sapphire_dev_id;
+
+enum
+{
+    SAPPHIRE_GPU_REG_MODE               = 0x00,
+    SAPPHIRE_GPU_REG_BRIGHTNESS         = 0x01,
+    SAPPHIRE_GPU_REG_RED                = 0x03,
+    SAPPHIRE_GPU_REG_GREEN              = 0x04,
+    SAPPHIRE_GPU_REG_BLUE               = 0x05,
+};
+
+class SapphireGPUController
+{
+public:
+    SapphireGPUController(i2c_smbus_interface* bus, sapphire_dev_id dev);
+    ~SapphireGPUController();
+
+    std::string     GetDeviceLocation();
+
+    void            SetColor(unsigned char red, unsigned char green, unsigned char blue);
+    void            SetMode(unsigned char mode, unsigned char speed);
+
+private:
+    i2c_smbus_interface*    bus;
+    sapphire_dev_id         dev;
+
+};