72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*---------------------------------------------------------*\
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| i2c_smbus_nct6775.h |
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| Nuvoton NCT67xx SMBUS driver for Windows |
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| Adam Honse (CalcProgrammer1) 19 May 2019 |
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| This file is part of the OpenRGB project |
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| SPDX-License-Identifier: GPL-2.0-only |
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\*---------------------------------------------------------*/
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#pragma once
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#include "i2c_smbus.h"
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#ifdef _WIN32
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#include <Windows.h>
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#endif
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#define SMBHSTDAT (0 + nct6775_smba)
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#define SMBBLKSZ (1 + nct6775_smba)
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#define SMBHSTCMD (2 + nct6775_smba)
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#define SMBHSTIDX (3 + nct6775_smba) //Index field is the Command field on other controllers
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#define SMBHSTCTL (4 + nct6775_smba)
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#define SMBHSTADD (5 + nct6775_smba)
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#define SMBHSTERR (9 + nct6775_smba)
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#define SMBHSTSTS (0xE + nct6775_smba)
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/* Command register */
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#define NCT6775_READ_BYTE 0
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#define NCT6775_READ_WORD 1
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#define NCT6775_READ_BLOCK 2
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#define NCT6775_BLOCK_WRITE_READ_PROC_CALL 3
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#define NCT6775_PROC_CALL 4
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#define NCT6775_WRITE_BYTE 8
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#define NCT6775_WRITE_WORD 9
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#define NCT6775_WRITE_BLOCK 10
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/* Control register */
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#define NCT6775_MANUAL_START 128
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#define NCT6775_SOFT_RESET 64
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/* Error register */
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#define NCT6775_NO_ACK 32
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/* Status register */
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#define NCT6775_FIFO_EMPTY 1
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#define NCT6775_FIFO_FULL 2
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#define NCT6775_MANUAL_ACTIVE 4
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/* Other settings */
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#define NCT6775_MAX_RETRIES 400
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#ifdef _WIN32
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#define GLOBAL_SMBUS_MUTEX_NAME "Global\\Access_SMBUS.HTP.Method"
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#endif
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class i2c_smbus_nct6775: public i2c_smbus_interface
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{
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public:
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u16 nct6775_smba = 0x0290;
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i2c_smbus_nct6775();
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~i2c_smbus_nct6775();
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private:
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s32 nct6775_access(u16 addr, char read_write, u8 command, int size, i2c_smbus_data *data);
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s32 i2c_smbus_xfer(u8 addr, char read_write, u8 command, int size, i2c_smbus_data* data);
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s32 i2c_xfer(u8 addr, char read_write, int* size, u8* data);
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#ifdef _WIN32
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HANDLE global_smbus_access_handle = NULL;
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#endif
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};
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