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/*
* Copyright (c) 2009-2010 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.
*/
/**
* @file nvodm_usbulpi.c
* @brief <b>Adaptation for USB ULPI </b>
*
* @Description : Implementation of the USB ULPI adaptation.
*/
#include "nvodm_usbulpi.h"
#include "nvodm_services.h"
#include "nvodm_query_discovery.h"
#include "nvodm_services.h"
#include "nvos.h"
#define SMSC3317GUID NV_ODM_GUID('s','m','s','c','3','3','1','7')
#define MAX_CLOCKS 3
#define NVODM_PORT(x) ((x) - 'a')
typedef struct NvOdmUsbUlpiRec
{
NvU64 CurrentGUID;
NvOdmServicesGpioHandle hGpio;
NvOdmGpioPinHandle hResetPin;
} NvOdmUsbUlpi;
NvOdmUsbUlpiHandle NvOdmUsbUlpiOpen(NvU32 Instance)
{
NvOdmUsbUlpi *pDevice = NULL;
NvU32 ClockInstances[MAX_CLOCKS];
NvU32 ClockFrequencies[MAX_CLOCKS];
NvU32 NumClocks;
NvU32 Port = NVODM_PORT('v');
NvU32 Pin = 1;
pDevice = NvOdmOsAlloc(sizeof(NvOdmUsbUlpi));
if (pDevice == NULL)
return NULL;
if(!NvOdmExternalClockConfig(SMSC3317GUID, NV_FALSE,
ClockInstances, ClockFrequencies, &NumClocks))
{
NvOdmOsDebugPrintf("NvOdmUsbUlpiOpen: NvOdmExternalClockConfig fail\n");
goto ExitUlpiOdm;
}
NvOdmOsSleepMS(10);
// Pull high on RESETB ( 22nd pin of smsc3315)
pDevice->hGpio = NvOdmGpioOpen();
pDevice->hResetPin = NvOdmGpioAcquirePinHandle(pDevice->hGpio, Port, Pin);
// config as out put pin
NvOdmGpioConfig(pDevice->hGpio, pDevice->hResetPin, NvOdmGpioPinMode_Output);
// Set low to write high on ULPI_RESETB pin
NvOdmGpioSetState(pDevice->hGpio, pDevice->hResetPin, 0x01);
NvOdmGpioSetState(pDevice->hGpio, pDevice->hResetPin, 0x0);
NvOdmOsSleepMS(5);
NvOdmGpioSetState(pDevice->hGpio, pDevice->hResetPin, 0x01);
pDevice->CurrentGUID = SMSC3317GUID;
return pDevice;
ExitUlpiOdm:
NvOdmOsFree(pDevice);
return NULL;
}
void NvOdmUsbUlpiClose(NvOdmUsbUlpiHandle hOdmUlpi)
{
if (hOdmUlpi->hResetPin)
{
NvOdmGpioSetState(hOdmUlpi->hGpio, hOdmUlpi->hResetPin, 0x0);
NvOdmGpioReleasePinHandle(hOdmUlpi->hGpio, hOdmUlpi->hResetPin);
hOdmUlpi->hResetPin = NULL;
}
if (hOdmUlpi->hGpio)
{
NvOdmGpioClose(hOdmUlpi->hGpio);
hOdmUlpi->hGpio = NULL;
}
if (hOdmUlpi)
{
NvOdmOsFree(hOdmUlpi);
}
}
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