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/*
* Copyright (c) 2007-2009 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.
*/
/**
* @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')
#define ULPI_RESET_PORT NVODM_PORT('v')
#define ULPI_RESET_PIN 1
#ifdef NV_DRIVER_DEBUG
#define NV_DRIVER_TRACE NvOsDebugPrintf
#else
#define NV_DRIVER_TRACE (void)
#endif
typedef struct NvOdmUsbUlpiRec
{
NvU64 CurrentGUID;
} NvOdmUsbUlpi;
static NvOdmServicesGpioHandle s_hGpio = NULL;
static NvOdmGpioPinHandle s_hResetPin = NULL;
NvOdmUsbUlpiHandle NvOdmUsbUlpiOpen(NvU32 Instance)
{
NvOdmUsbUlpi*pDevice = NULL;
NvU32 ClockInstances[MAX_CLOCKS];
NvU32 ClockFrequencies[MAX_CLOCKS];
NvU32 NumClocks;
pDevice = NvOdmOsAlloc(sizeof(NvOdmUsbUlpi));
if(pDevice == NULL)
return NULL;
if(!NvOdmExternalClockConfig(SMSC3317GUID, NV_FALSE, ClockInstances,
ClockFrequencies, &NumClocks))
{
NV_DRIVER_TRACE (("ERROR NvOdmUsbUlpiOpen: "
"NvOdmExternalClockConfig fail\n"));
goto ExitUlpiOdm;
}
NvOdmOsSleepMS(10);
if (!s_hGpio)
s_hGpio = NvOdmGpioOpen();
if (!s_hGpio)
{
NV_DRIVER_TRACE (("ERROR NvOdmUsbUlpiOpen: "
"Not able to open gpio handle\n"));
goto ExitUlpiOdm;
}
if (!s_hResetPin)
s_hResetPin = NvOdmGpioAcquirePinHandle(s_hGpio, ULPI_RESET_PORT,
ULPI_RESET_PIN);
if (!s_hResetPin)
{
NvOdmGpioClose(s_hGpio);
s_hGpio = NULL;
NV_DRIVER_TRACE (("ERROR NvOdmGpioAcquirePinHandle: "
"Not able to Acq pinhandle\n"));
goto ExitUlpiOdm;
}
// Pull high on RESETB ( 22nd pin of smsc3315)
// config as out put pin
NvOdmGpioConfig(s_hGpio,s_hResetPin, NvOdmGpioPinMode_Output);
// Set low to write high on ULPI_RESETB pin
NvOdmGpioSetState(s_hGpio, s_hResetPin, 0x01);
NvOdmGpioSetState(s_hGpio, s_hResetPin, 0x0);
NvOdmOsSleepMS(5);
NvOdmGpioSetState(s_hGpio, s_hResetPin, 0x01);
pDevice->CurrentGUID = SMSC3317GUID;
return pDevice;
ExitUlpiOdm:
NvOdmOsFree(pDevice);
return NULL;
}
void NvOdmUsbUlpiClose(NvOdmUsbUlpiHandle hOdmUlpi)
{
if (hOdmUlpi)
{
NvOdmOsFree(hOdmUlpi);
}
if (s_hResetPin)
{
NvOdmGpioReleasePinHandle(s_hGpio, s_hResetPin);
s_hResetPin = NULL;
}
if (s_hGpio)
{
NvOdmGpioClose(s_hGpio);
s_hGpio = NULL;
}
}
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