48 lines
No EOL
1.5 KiB
C++
48 lines
No EOL
1.5 KiB
C++
/*-----------------------------------------*\
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| i2c_smbus_piix4.h |
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| Definitions and types for PIIX4 SMBUS |
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| driver |
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| Adam Honse (CalcProgrammer1) 8/8/2018 |
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| Portions based on Linux source code |
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| GNU GPL v2 |
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\*-----------------------------------------*/
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#include "i2c_smbus.h"
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#pragma once
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// PIIX4 SMBus address offsets
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#define SMBHSTSTS (0 + piix4_smba)
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#define SMBHSLVSTS (1 + piix4_smba)
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#define SMBHSTCNT (2 + piix4_smba)
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#define SMBHSTCMD (3 + piix4_smba)
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#define SMBHSTADD (4 + piix4_smba)
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#define SMBHSTDAT0 (5 + piix4_smba)
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#define SMBHSTDAT1 (6 + piix4_smba)
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#define SMBBLKDAT (7 + piix4_smba)
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#define SMBSLVCNT (8 + piix4_smba)
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#define SMBSHDWCMD (9 + piix4_smba)
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#define SMBSLVEVT (0xA + piix4_smba)
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#define SMBSLVDAT (0xC + piix4_smba)
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#define MAX_TIMEOUT 5000
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// PIIX4 constants
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#define PIIX4_QUICK 0x00
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#define PIIX4_BYTE 0x04
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#define PIIX4_BYTE_DATA 0x08
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#define PIIX4_WORD_DATA 0x0C
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#define PIIX4_BLOCK_DATA 0x14
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class i2c_smbus_piix4 : public i2c_smbus_interface
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{
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public:
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u16 piix4_smba = 0x0B00;
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private:
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int piix4_transaction();
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s32 piix4_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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}; |