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Add support for Intel i801 SMBus on MacOS

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Shady Nawara 2022-05-31 00:59:07 +00:00 • committed by Adam Honse
parent 524675108d
commit e9c382d2e6
6 changed files with 204 additions and 2 deletions
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110
dependencies/macUSPCIO/macUSPCIOAccess.h vendored Normal file
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//
// macUSPCIOAccess.h
// Access methods for macUSPCIO
//
// Created by Shady Nawara
// MacUSPCIO: https://github.com/ShadyNawara/macUSPCIO
//
#ifndef macUSPCIOAccess_h
#define macUSPCIOAccess_h
#include <IOKit/IOKitLib.h>
extern io_connect_t macUSPCIO_driver_connection;
inline bool InitMacUSPCIODriver()
{
if(macUSPCIO_driver_connection)
{
return true;
}
io_service_t dev = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("macUSPCIO"));
if (dev)
{
kern_return_t ret = IOServiceOpen(dev, mach_task_self(), 0, &macUSPCIO_driver_connection);
IOObjectRelease(dev);
return ret == kIOReturnSuccess;
}
return false;
}
inline bool GetMacUSPCIODriverStatus() {
if(macUSPCIO_driver_connection)
{
return true;
}
return false;
}
inline void CloseMacUSPCIODriver() {
if(macUSPCIO_driver_connection) {
IOServiceClose(macUSPCIO_driver_connection);
macUSPCIO_driver_connection = 0;
}
}
inline uint8_t ReadIoPortByte(uint16_t address)
{
if(!macUSPCIO_driver_connection)
{
return 0;
}
uint32_t outputCount = 1;
uint64_t output = 0;
uint64_t input[1] = {address};
IOConnectCallScalarMethod(macUSPCIO_driver_connection, 0, input, 1, &output, &outputCount);
return (uint8_t)output;
}
inline void WriteIoPortByte(uint16_t address, uint8_t value)
{
if(!macUSPCIO_driver_connection)
{
return;
}
uint32_t outputCount = 1;
uint64_t output = 0;
uint64_t input[2] = {address, value};
IOConnectCallScalarMethod(macUSPCIO_driver_connection, 1, input, 2, &output, &outputCount);
}
inline uint8_t ReadConfigPortByte(uint16_t address) {
if(!macUSPCIO_driver_connection)
{
return 0;
}
uint32_t outputCount = 1;
uint64_t output = 0;
uint64_t input[1] = {address};
IOConnectCallScalarMethod(macUSPCIO_driver_connection, 2, input, 1, &output, &outputCount);
return (uint8_t)output;
}
inline uint16_t ReadConfigPortWord(uint16_t address)
{
if(!macUSPCIO_driver_connection)
{
return 0;
}
uint32_t outputCount = 1;
uint64_t output = 0;
uint64_t input[1] = {address};
IOConnectCallScalarMethod(macUSPCIO_driver_connection, 3, input, 1, &output, &outputCount);
return (uint16_t)output;
}
#endif /* macUSPCIOAccess_h */