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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2009 Dave Chapman
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
*
* Based on the getCapsUsingSCSIPassThrough() function from "cddrv.cpp":
* - http://www.farmanager.com/svn/trunk/unicode_far/cddrv.cpp
*
* Copyright (c) 1996 Eugene Roshal
* Copyright (c) 2000 Far Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
****************************************************************************/
#include <windows.h>
#include <stddef.h>
#include <stdio.h>
#include <ddk/ntddscsi.h>
#include "ipodio.h"
typedef struct _SCSI_PASS_THROUGH_WITH_BUFFERS {
SCSI_PASS_THROUGH Spt;
ULONG Filler; /* realign buffers to double word boundary */
UCHAR SenseBuf[32];
UCHAR DataBuf[512];
} SCSI_PASS_THROUGH_WITH_BUFFERS, *PSCSI_PASS_THROUGH_WITH_BUFFERS;
int ipod_scsi_inquiry(struct ipod_t* ipod, int page_code,
unsigned char* buf, int bufsize)
{
SCSI_PASS_THROUGH_WITH_BUFFERS sptwb;
ULONG length;
DWORD returned;
BOOL status;
if (bufsize > 255) {
fprintf(stderr,"[ERR] Invalid bufsize in ipod_scsi_inquiry\n");
return -1;
}
memset(&sptwb, 0, sizeof(sptwb));
sptwb.Spt.Length = sizeof(SCSI_PASS_THROUGH);
sptwb.Spt.PathId = 0;
sptwb.Spt.TargetId = 1;
sptwb.Spt.Lun = 0;
sptwb.Spt.CdbLength = 6;
sptwb.Spt.SenseInfoLength = 32; /* sbuf size */;
sptwb.Spt.DataIn = SCSI_IOCTL_DATA_IN;
sptwb.Spt.DataTransferLength = bufsize;
sptwb.Spt.TimeOutValue = 2; /* 2 seconds */
sptwb.Spt.DataBufferOffset = offsetof(SCSI_PASS_THROUGH_WITH_BUFFERS, DataBuf);
sptwb.Spt.SenseInfoOffset = offsetof(SCSI_PASS_THROUGH_WITH_BUFFERS, SenseBuf);
length = offsetof(SCSI_PASS_THROUGH_WITH_BUFFERS, DataBuf) +
sptwb.Spt.DataTransferLength;
/* Set cdb info */
sptwb.Spt.Cdb[0] = 0x12; /* SCSI Inquiry */
sptwb.Spt.Cdb[1] = 1;
sptwb.Spt.Cdb[2] = page_code;
sptwb.Spt.Cdb[3] = 0;
sptwb.Spt.Cdb[4] = bufsize;
sptwb.Spt.Cdb[5] = 0;
status = DeviceIoControl(ipod->dh,
IOCTL_SCSI_PASS_THROUGH,
&sptwb,
sizeof(SCSI_PASS_THROUGH),
&sptwb,
length,
&returned,
FALSE);
if (status) {
/* W32 sometimes returns more bytes with additional garbage.
* Make sure to not copy that garbage. */
memcpy(buf, sptwb.DataBuf,
(DWORD)bufsize >= returned ? returned : (DWORD)bufsize);
return 0;
} else {
return -1;
}
}
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