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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 "pcf50626_batterycharger.h"
#include "pcf50626_adc.h"
#include "pcf50626_i2c.h"
#include "pcf50626_reg.h"
#include "ds2482_bridge.h"
#include "ds2482_i2c.h"
#include "nvodm_query_discovery.h"
#include "nvodm_query.h"
// implementations of platform related functions.
#define OWI2CGUID NV_ODM_GUID('o','w','i','2','c','_','d','s')
#define BATTERYGUID NV_ODM_GUID('b','a','t','t','_','m','o','t')
static NvBool ds2482Presented = NV_FALSE;
/* Initliase all registers that related to battery charger */
NvBool
Pcf50626BatteryChargerSetup(NvOdmPmuDeviceHandle hDevice)
{
NvOdmIoModule I2cModule = NvOdmIoModule_I2c;
NvU32 I2cInstance = 0;
NvU32 I2cAddress = 0;
const NvOdmPeripheralConnectivity *pConnectivity =
NvOdmPeripheralGetGuid(OWI2CGUID);
NV_ASSERT(hDevice);
if (pConnectivity != NULL) // OwI2c device is in database
{
NvU32 i = 0;
for (i = 0; i < pConnectivity->NumAddress; i ++)
{
if (pConnectivity->AddressList[i].Interface == NvOdmIoModule_I2c_Pmu)
{
I2cModule = NvOdmIoModule_I2c_Pmu;
I2cInstance = pConnectivity->AddressList[i].Instance;
I2cAddress = pConnectivity->AddressList[i].Address;
break;
}
}
ds2482Presented = NV_TRUE;
}
else
{
ds2482Presented = NV_FALSE;
}
if (ds2482Presented == NV_TRUE)
{
// init GPIO8
if (!Pcf50626I2cWrite8(hDevice, PCF50626_GPIO8C1_ADDR, 0x0))
return NV_FALSE;
NvOdmOsWaitUS(50000);
if (!Ds2482Setup(hDevice))
return NV_FALSE;
return NV_TRUE;
}
//TODO: add battery charger setup implementation here, base on HW.
// by default, simply return TRUE if nothing needed.
return NV_TRUE;
}
/* check CBC main batt presence */
NvBool
Pcf50626BatteryChargerCBCMainBatt(NvOdmPmuDeviceHandle hDevice, NvBool *status)
{
const NvOdmPeripheralConnectivity *pConnectivity =
NvOdmPeripheralGetGuid(BATTERYGUID);
NV_ASSERT(hDevice);
if (pConnectivity != NULL) // battery is in database
{
///TODO: retrieve data from the database;
//Nothing needed on Concorde for now
}
if (ds2482Presented == NV_TRUE)
{
if (!Ds2482BatteryPresented(hDevice, status))
return NV_FALSE;
}
else
{
//TODO: add battery detection impelentation here. by default always return TRUE.
*status = NV_TRUE;
}
return NV_TRUE;
}
/* Calculate the battery temperature */
NvU32 Pcf50626BatteryTemperature(NvU32 VBatSense, NvU32 VBatTemp)
{
//TODO: implement the temperature algorithm based on the reading of Vbat sense and VBat temp.
// Pending approval.
return 0;
}
NvBool
Ds2482BatteryPresented(NvOdmPmuDeviceHandle hDevice, NvBool *BattPresence)
{
///TODO: detect battery via ds2482 based on the battery spec.
///Pending approval
return NV_TRUE;
}
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