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/*
* Copyright (c) 2010 NVIDIA Corporation. All rights reserved.
*
* NVIDIA Corporation and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA Corporation is strictly prohibited.
*/
#include "nvodm_sdio.h"
#include "nvodm_services.h"
#include "nvodm_query_discovery.h"
#include "nvodm_services.h"
#include "nvodm_pmu.h"
#include "nvos.h"
#define WLAN_GUID NV_ODM_GUID('s','d','i','o','w','l','a','n')
typedef struct NvOdmSdioRec
{
// NvODM PMU device handle
NvOdmServicesPmuHandle hPmu;
// Gpio Handle
NvOdmServicesGpioHandle hGpio;
// Pin handle to Wlan Reset Gpio pin
NvOdmGpioPinHandle hResetPin;
// Pin handle to Wlan PWR GPIO Pin
NvOdmGpioPinHandle hPwrPin;
const NvOdmPeripheralConnectivity *pConnectivity;
// Power state
NvBool PoweredOn;
// Instance
NvU32 Instance;
} NvOdmSdio;
static void NvOdmSetPowerOnSdio(NvOdmSdioHandle pDevice, NvBool enable)
{
const NvOdmPeripheralConnectivity *pConn;
NvU32 i;
pConn = pDevice->pConnectivity;
for (i=0; i<pConn->NumAddress; i++)
{
const NvOdmIoAddress *addr = &pConn->AddressList[i];
NvU32 settle;
NvU32 voltage;
if (addr->Interface != NvOdmIoModule_Vdd)
continue;
if (enable)
{
NvOdmServicesPmuVddRailCapabilities caps;
NvOdmServicesPmuGetCapabilities(pDevice->hPmu, addr->Address, &caps);
voltage = caps.requestMilliVolts;
}
else
{
voltage = ODM_VOLTAGE_OFF;
}
NvOdmServicesPmuSetVoltage(pDevice->hPmu, addr->Address,
voltage, &settle);
if (settle)
NvOdmOsWaitUS(settle);
}
}
static NvBool SdioOdmWlanPower(NvOdmSdioHandle hOdmSdio, NvBool IsEnable)
{
if (IsEnable)
{
// Wlan Power On Reset Sequence
NvOdmGpioSetState(hOdmSdio->hGpio, hOdmSdio->hPwrPin, 0x0);
NvOdmGpioSetState(hOdmSdio->hGpio, hOdmSdio->hResetPin, 0x0);
NvOdmOsWaitUS(2000);
NvOdmGpioSetState(hOdmSdio->hGpio, hOdmSdio->hPwrPin, 0x1);
NvOdmGpioSetState(hOdmSdio->hGpio, hOdmSdio->hResetPin, 0x1);
}
else
{
// Power Off sequence
NvOdmGpioSetState(hOdmSdio->hGpio, hOdmSdio->hPwrPin, 0x0);
}
return NV_TRUE;
}
NvOdmSdioHandle NvOdmSdioOpen(NvU32 Instance)
{
static NvOdmSdio *pDevice = NULL;
NvOdmServicesGpioHandle hGpioTemp = NULL;
const NvOdmPeripheralConnectivity *pConnectivity;
NvU32 NumOfGuids = 1;
NvU64 guid;
NvU32 searchVals[2];
const NvU32 *pOdmConfigs;
NvU32 NumOdmConfigs;
NvBool Status = NV_TRUE;
const NvOdmPeripheralSearch searchAttrs[] =
{
NvOdmPeripheralSearch_IoModule,
NvOdmPeripheralSearch_Instance,
};
searchVals[0] = NvOdmIoModule_Sdio;
searchVals[1] = Instance;
NvOdmQueryPinMux(NvOdmIoModule_Sdio, &pOdmConfigs, &NumOdmConfigs);
if (Instance >= NumOdmConfigs )
return NULL;
if( pOdmConfigs[Instance] == 0 )
return NULL;
NumOfGuids = NvOdmPeripheralEnumerate(searchAttrs, searchVals,
2, &guid, NumOfGuids);
// Get the peripheral connectivity information
pConnectivity = NvOdmPeripheralGetGuid(guid);
if (pConnectivity == NULL)
return NULL;
pDevice = NvOdmOsAlloc(sizeof(NvOdmSdio));
pDevice->hPmu = NULL;
if(pDevice == NULL)
return (pDevice);
if (pDevice->hPmu == NULL)
{
pDevice->hPmu = NvOdmServicesPmuOpen();
if(pDevice->hPmu == NULL)
{
NvOdmOsFree(pDevice);
pDevice = NULL;
return (NULL);
}
}
pDevice->pConnectivity = pConnectivity;
NvOdmSetPowerOnSdio(pDevice, NV_TRUE);
if (pConnectivity->Guid == WLAN_GUID)
{
// Getting the OdmGpio Handle
hGpioTemp = NvOdmGpioOpen();
if (hGpioTemp == NULL)
{
NvOdmOsFree(pDevice);
pDevice = NULL;
return (pDevice);
}
// Search for the Vdd rail and set the proper volage to the rail.
if (pConnectivity->AddressList[1].Interface == NvOdmIoModule_Gpio)
{
// Acquiring Pin Handles for Power Pin
pDevice->hPwrPin= NvOdmGpioAcquirePinHandle(hGpioTemp,
pConnectivity->AddressList[1].Instance,
pConnectivity->AddressList[1].Address);
}
if (pConnectivity->AddressList[2].Interface == NvOdmIoModule_Gpio)
{
// Acquiring Pin Handles for Reset Pin
pDevice->hResetPin= NvOdmGpioAcquirePinHandle(hGpioTemp,
pConnectivity->AddressList[2].Instance,
pConnectivity->AddressList[2].Address);
}
// Setting the ON/OFF pin to output mode.
NvOdmGpioConfig(hGpioTemp, pDevice->hPwrPin, NvOdmGpioPinMode_Output);
NvOdmGpioConfig(hGpioTemp, pDevice->hResetPin, NvOdmGpioPinMode_Output);
// Setting the Output Pin to Low
NvOdmGpioSetState(hGpioTemp, pDevice->hPwrPin, 0x0);
NvOdmGpioSetState(hGpioTemp, pDevice->hResetPin, 0x0);
pDevice->hGpio = hGpioTemp;
Status = SdioOdmWlanPower(pDevice, NV_TRUE);
if (Status != NV_TRUE)
{
NvOdmOsFree(pDevice);
pDevice = NULL;
return (pDevice);
}
}
pDevice->PoweredOn = NV_TRUE;
pDevice->Instance = Instance;
return pDevice;
}
void NvOdmSdioClose(NvOdmSdioHandle hOdmSdio)
{
if (hOdmSdio->pConnectivity->Guid == WLAN_GUID)
{
// Call Turn off power when close is Called
(void)SdioOdmWlanPower(hOdmSdio, NV_FALSE);
NvOdmGpioReleasePinHandle(hOdmSdio->hGpio, hOdmSdio->hPwrPin);
NvOdmGpioReleasePinHandle(hOdmSdio->hGpio, hOdmSdio->hResetPin);
NvOdmGpioClose(hOdmSdio->hGpio);
}
NvOdmSetPowerOnSdio(hOdmSdio, NV_FALSE);
if (hOdmSdio->hPmu != NULL)
{
NvOdmServicesPmuClose(hOdmSdio->hPmu);
}
NvOdmOsFree(hOdmSdio);
hOdmSdio = NULL;
}
NvBool NvOdmSdioSuspend(NvOdmSdioHandle hOdmSdio)
{
NvBool Status = NV_TRUE;
if (!hOdmSdio->PoweredOn)
return NV_TRUE;
NvOdmSetPowerOnSdio(hOdmSdio, NV_FALSE);
if (hOdmSdio->pConnectivity->Guid == WLAN_GUID)
Status = SdioOdmWlanPower(hOdmSdio, NV_FALSE);
hOdmSdio->PoweredOn = NV_FALSE;
return Status;
}
NvBool NvOdmSdioResume(NvOdmSdioHandle hOdmSdio)
{
NvBool Status = NV_TRUE;
if (hOdmSdio->PoweredOn)
return NV_TRUE;
NvOdmSetPowerOnSdio(hOdmSdio, NV_TRUE);
if (hOdmSdio->pConnectivity->Guid == WLAN_GUID)
Status = SdioOdmWlanPower(hOdmSdio, NV_TRUE);
hOdmSdio->PoweredOn = NV_TRUE;
return Status;
}
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