Bug 1996 - Contribution for West Bridge Astoria Symbian Storage Driver
this storage driver is for the West Bridge Astoria chipset. This device
has a USB, SD and processor port for communication with a baseband processor.
In our port, we connected this device DVK to the Beagleboard through the SPI
interface of the OMAP3. After driver installation, the Symbian OS can see an
external device or D: drive represented by the SD card. In this driver, the USB
interface is not used directly, though this may be the subject of future
contributions. The appropriate way to test the driver is to access the external
volume and do file read and write to it, pretty much the same way you would
test a thumb drive on your PC
// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
// omap3530/assp/src/omap3530_assp.cia
// omap3530ASSP architecture layer
//
#include <e32cia.h>
#include <assp/omap3530_assp/omap3530_assp_priv.h>
__NAKED__ TUint64 DoRead64(TLinAddr /*aAddr*/)
{
asm("ldmia r0, {r0-r1} ");
__JUMP(,lr);
}
__NAKED__ void DoWrite64(TLinAddr aAddr, TUint64 aValue)
{
#ifdef __EABI__
asm("stmia r0, {r2-r3} ");
#else
asm("stmia r0, {r1-r2} ");
#endif
__JUMP(,lr);
}
EXPORT_C __NAKED__ void Omap3530Assp::BootWaitMilliSeconds(TInt aDuration)
//
// Active waiting loop (not to be used after System Tick timer has been set up - Init3()
//
{
//
// TO DO: (optional)
//
// Program a Hardware Timer to generate the required duration, and then loop until the timer expires.
// Do NOT use interrupts!
//
}
__NAKED__ void Omap3530Assp::NanoWait(TUint32 aInterval)
//
// Wait for aInterval nanoseconds
//
{
// TO DO: work out the correct values for the hardware
asm("sub r0, r0, #100");
asm("1:");
asm("subs r0, r0, #20");
asm("bgt 1b");
__JUMP(,lr);
}