/*
 *  floppy_blkdev.cpp
 *  floppy
 *
 *  Created by dgatwood on Tue Feb 05 2002.
 *  Copyright (c) 2001 __MyCompanyName__. All rights reserved.
 *
 */

#include <IOKit/IOLib.h>

#define CPLUSPLUS
typedef long unsigned int uint_t;
#include "floppy.h"

extern "C" {
#include <pexpert/pexpert.h>	//This is for debugging purposes ONLY

io_return_t fdsetstat(dev_t dev,
	     dev_flavor_t flavor,
	     dev_status_t data,
	     natural_t count);

}


// virtual IOReturn doAsyncReadWrite(IOMemoryDescriptor *buffer,
//                         UInt32 block,UInt32 nblks,
//                         IOStorageCompletion completion) = 0;

IOReturn org_mklinux_iokit_swim3_driver::doEjectMedia(void)
{
    dev_t dev;
    
    dev=(this->busdev->unit << 6);
    if (fdsetstat(dev, (dev_flavor_t)V_EJECT, NULL, 0) == D_SUCCESS)
        return kIOReturnSuccess;
    else
        return kIOReturnError;
}

IOReturn org_mklinux_iokit_swim3_driver::doFormatMedia(UInt64 byteCapacity)
{
    /* @@@ WRITE ME! @@@*/
    return kIOReturnUnsupported;
}

UInt32 org_mklinux_iokit_swim3_driver::doGetFormatCapacities(UInt64 * capacities,
                        UInt32 capacitiesMaxCount)
{
    /* @@@ WRITE ME! @@@*/
    return kIOReturnUnsupported;
}

IOReturn org_mklinux_iokit_swim3_driver::doLockUnlockMedia(bool doLock)
{
    /* @@@ WRITE ME! @@@*/
    return kIOReturnUnsupported;
}

IOReturn org_mklinux_iokit_swim3_driver::doSyncReadWrite(IOMemoryDescriptor *buffer,
                        UInt32 block,UInt32 nblks)
{
/* @@@ WRITE ME! @@@ */
    return kIOReturnUnsupported;
}

// virtual IOReturn doSynchronizeCache(void) = 0;
// virtual char * getAdditionalDeviceInfoString(void) = 0;
// virtual char * getProductString(void) = 0;
// virtual char * getRevisionString(void) = 0;
// virtual char * getVendorString(void) = 0;
// virtual bool init(OSDictionary * properties);

OSStatus
 FloppyPluginGetInfo(BSStorePtr infoStore,
                     struct BSStoreMPIInfo *info);

IOReturn org_mklinux_iokit_swim3_driver::reportBlockSize(UInt64 *blockSize)
{
    struct BSStoreMPIInfo info;
    BSStorePtr infoStore;
    OSStatus ret;

    ret=FloppyPluginGetInfo(infoStore, &info);

    *blockSize=info.writeBlockSize;

    if (ret == E_BSSuccess)
        return kIOReturnSuccess;
    else
        return kIOReturnError;
}

IOReturn org_mklinux_iokit_swim3_driver::reportEjectability(bool *isEjectable)
{
    *isEjectable=1;
    return kIOReturnSuccess;
}

IOReturn org_mklinux_iokit_swim3_driver::reportLockability(bool *isLockable)
{
    *isLockable=1;
    return kIOReturnSuccess;
}

IOReturn org_mklinux_iokit_swim3_driver::reportMaxReadTransfer(UInt64 blockSize,UInt64 *max)
{
    /* It's the same for floppies, so why screw with two functions? */
    return reportMaxWriteTransfer(blockSize, max);
}

IOReturn org_mklinux_iokit_swim3_driver::reportMaxValidBlock(UInt64 *maxBlock)
{
    struct BSStoreMPIInfo info;
    BSStorePtr infoStore;
    OSStatus ret;

    ret=FloppyPluginGetInfo(infoStore, &info);

    *maxBlock=info.storeSize / info.writeBlockSize;

    if (ret == E_BSSuccess)
        return kIOReturnSuccess;
    else
        return kIOReturnError;
}


IOReturn org_mklinux_iokit_swim3_driver::reportMaxWriteTransfer(UInt64 blockSize,UInt64 *max)
{

    *max=MAX_PHYS / blockSize;

    return kIOReturnSuccess;
}

IOReturn org_mklinux_iokit_swim3_driver::reportMediaState(bool *mediaPresent,bool *changedState)
{
    struct BSStoreMPIInfo info;
    BSStorePtr infoStore;
    OSStatus ret;

    ret=FloppyPluginGetInfo(infoStore, &info);

    if (info.curState == kBSOnline)
        *mediaPresent = true;
    else
        *mediaPresent = false;

    if (media_present != *mediaPresent)
        *changedState = true;
    else
        *changedState = false;

    if (ret == E_BSSuccess)
        return kIOReturnSuccess;
    else
        return kIOReturnError;
}

IOReturn org_mklinux_iokit_swim3_driver::reportPollRequirements(bool *pollRequired,
                    bool *pollIsExpensive)
{
*pollRequired=false;
*pollIsExpensive=false;
return kIOReturnSuccess;
}

IOReturn org_mklinux_iokit_swim3_driver::reportRemovability(bool *isRemovable)
{
*isRemovable=true;
return kIOReturnSuccess;
}

IOReturn org_mklinux_iokit_swim3_driver::reportWriteProtection(bool *isWriteProtected)
{
    struct BSStoreMPIInfo info;
    BSStorePtr infoStore;
    OSStatus ret;

    ret=FloppyPluginGetInfo(infoStore, &info);

    if (!info.isWriteable)
        *isWriteProtected = true;
    else
        *isWriteProtected = false;

    if (ret == E_BSSuccess)
        return kIOReturnSuccess;
    else
        return kIOReturnError;
}