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/*
* Copyright (c) 2009 NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "nvodm_pmu.h"
#include "nvodm_services.h"
#include "fan5355_buck_i2c.h"
#include "fan5355_buck_reg.h"
// Function declaration
NvBool Fan5355I2cWrite8(
NvOdmPmuDeviceHandle hDevice,
NvU8 Addr,
NvU8 Data)
{
NvU8 WriteBuffer[2];
NvOdmI2cTransactionInfo TransactionInfo;
NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
WriteBuffer[0] = Addr & 0xFF; // PMU offset
WriteBuffer[1] = Data & 0xFF; // written data
TransactionInfo.Address = FAN5335_SLAVE_ADDR;
TransactionInfo.Buf = &WriteBuffer[0];
TransactionInfo.Flags = NVODM_I2C_IS_WRITE;
TransactionInfo.NumBytes = 2;
status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo, 1,
FAN5335_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status == NvOdmI2cStatus_Success)
{
return NV_TRUE;
}
else
{
switch (status)
{
case NvOdmI2cStatus_Timeout:
NVODMPMU_PRINTF(("NvOdmPmuI2cWrite8 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("NvOdmPmuI2cWrite8 Failed: SlaveNotFound\n"));
break;
}
return NV_FALSE;
}
}
NvBool Fan5355I2cRead8(
NvOdmPmuDeviceHandle hDevice,
NvU8 Addr,
NvU8 *Data)
{
NvU8 ReadBuffer = 0;
NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
NvOdmI2cTransactionInfo TransactionInfo[2];
// Write the PMU offset
ReadBuffer = Addr & 0xFF;
TransactionInfo[0].Address = FAN5335_SLAVE_ADDR;
TransactionInfo[0].Buf = &ReadBuffer;
TransactionInfo[0].Flags = NVODM_I2C_IS_WRITE;
TransactionInfo[0].NumBytes = 1;
TransactionInfo[1].Address = (FAN5335_SLAVE_ADDR | 0x1);;
TransactionInfo[1].Buf = &ReadBuffer;
TransactionInfo[1].Flags = 0;
TransactionInfo[1].NumBytes = 1;
// Read data from PMU at the specified offset
status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0], 2,
FAN5335_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status != NvOdmI2cStatus_Success)
{
switch (status)
{
case NvOdmI2cStatus_Timeout:
NVODMPMU_PRINTF(("NvOdmPmuI2cRead8 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("NvOdmPmuI2cRead8 Failed: SlaveNotFound\n"));
break;
}
return NV_FALSE;
}
*Data = ReadBuffer;
return NV_TRUE;
}
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