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/*
* Copyright (c) 2007-2009 NVIDIA Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the NVIDIA Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* @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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