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Implements i2c_smbus_amdadl::i2c_xfer for AMD ADL I2C.

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silverspy18 2025-07-10 19:16:57 +00:00 • committed by Adam Honse
parent f460a6573c
commit d3f49c72e1
1 changed files with 41 additions and 2 deletions
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43
i2c_smbus/i2c_smbus_amdadl.cpp
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@ -222,9 +222,48 @@ s32 i2c_smbus_amdadl::i2c_smbus_xfer(u8 addr, char read_write, u8 command, int s
return(ret); return(ret);
}; };
s32 i2c_smbus_amdadl::i2c_xfer(u8 /*addr*/, char /*read_write*/, int* /*size*/, u8* /*data*/) s32 i2c_smbus_amdadl::i2c_xfer(u8 addr, char read_write, int* size, u8* data)
{ {
return(-1); int PrimaryDisplay;
int ret;
int data_size = *size;
ADLI2C* pI2C;
ADLI2C I2Cstore;
pI2C = &I2Cstore;
char i2c_buf[I2C_SMBUS_BLOCK_MAX];
pI2C->iSize = sizeof(ADLI2C);
pI2C->iSpeed = 100;
pI2C->iLine = 1; //location of the Aura chip
pI2C->iAddress = addr << 1;
pI2C->iOffset = 0;
pI2C->iDataSize = data_size;
if (ADL_OK != ADL2_Adapter_Primary_Get(context, &PrimaryDisplay))
{
printf("Cannot get Display!\n");
return ADL_ERR;
}
if (read_write == I2C_SMBUS_READ)
{
pI2C->iAction = ADL_DL_I2C_ACTIONREAD;
pI2C->pcData = (char*)data;
ret = ADL2_Display_WriteAndReadI2C(context, PrimaryDisplay, pI2C);
}
else
{
pI2C->iAction = ADL_DL_I2C_ACTIONWRITE;
pI2C->pcData = i2c_buf;
memcpy(i2c_buf, data, data_size);
ret = ADL2_Display_WriteAndReadI2C(context, PrimaryDisplay, pI2C);
}
return(ret);
} }
bool i2c_smbus_amdadl_detect() bool i2c_smbus_amdadl_detect()