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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-03 02:15:56 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-03 02:15:56 +0000
commit50b48aec6ddd451a6d1709c0942477b503457663 (patch)
treea9ece53ec06fd0a2819de7a2a6de997193566626 /libk3bdevice/k3bscsicommand_linux.cpp
downloadk3b-50b48aec6ddd451a6d1709c0942477b503457663.tar.gz
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Added abandoned KDE3 version of K3B
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k3b@1084400 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'libk3bdevice/k3bscsicommand_linux.cpp')
-rw-r--r--libk3bdevice/k3bscsicommand_linux.cpp177
1 files changed, 177 insertions, 0 deletions
diff --git a/libk3bdevice/k3bscsicommand_linux.cpp b/libk3bdevice/k3bscsicommand_linux.cpp
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+++ b/libk3bdevice/k3bscsicommand_linux.cpp
@@ -0,0 +1,177 @@
+/*
+ *
+ * $Id: k3bscsicommand_linux.cpp 679274 2007-06-23 13:23:58Z trueg $
+ * Copyright (C) 2003-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * Parts of this file are inspired (and copied) from transport.hxx
+ * from the dvd+rw-tools (C) Andy Polyakov <appro@fy.chalmers.se>
+ *
+ * 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.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#include "k3bscsicommand.h"
+#include "k3bdevice.h"
+
+#include <k3bdebug.h>
+
+#include <sys/ioctl.h>
+#undef __STRICT_ANSI__
+#include <linux/cdrom.h>
+#define __STRICT_ANSI__
+#include <scsi/sg.h>
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+
+
+#if !defined(SG_FLAG_LUN_INHIBIT)
+# if defined(SG_FLAG_UNUSED_LUN_INHIBIT)
+# define SG_FLAG_LUN_INHIBIT SG_FLAG_UNUSED_LUN_INHIBIT
+# else
+# define SG_FLAG_LUN_INHIBIT 0
+# endif
+#endif
+
+#ifdef SG_IO
+static bool useSgIo()
+{
+ struct utsname buf;
+ uname( &buf );
+ // was CDROM_SEND_PACKET declared dead in 2.5?
+ return ( strcmp( buf.release, "2.5.43" ) >=0 );
+}
+#endif
+
+
+class K3bDevice::ScsiCommand::Private
+{
+public:
+ struct cdrom_generic_command cmd;
+ struct request_sense sense;
+
+#ifdef SG_IO
+ bool useSgIo;
+ struct sg_io_hdr sgIo;
+#endif
+};
+
+
+void K3bDevice::ScsiCommand::clear()
+{
+ ::memset( &d->cmd, 0, sizeof(struct cdrom_generic_command) );
+ ::memset( &d->sense, 0, sizeof(struct request_sense) );
+
+ d->cmd.quiet = 1;
+ d->cmd.sense = &d->sense;
+
+#ifdef SG_IO
+ d->useSgIo = useSgIo();
+ ::memset( &d->sgIo, 0, sizeof(struct sg_io_hdr) );
+#endif
+}
+
+
+unsigned char& K3bDevice::ScsiCommand::operator[]( size_t i )
+{
+#ifdef SG_IO
+ if( d->sgIo.cmd_len < i+1 )
+ d->sgIo.cmd_len = i+1;
+#endif
+ return d->cmd.cmd[i];
+}
+
+
+int K3bDevice::ScsiCommand::transport( TransportDirection dir,
+ void* data,
+ size_t len )
+{
+ bool needToClose = false;
+ if( m_device ) {
+ m_device->usageLock();
+ if( !m_device->isOpen() ) {
+ needToClose = true;
+ }
+ if ( !m_device->open( dir == TR_DIR_WRITE ) ) {
+ m_device->usageUnlock();
+ return -1;
+ }
+ m_deviceHandle = m_device->handle();
+ }
+
+ if( m_deviceHandle == -1 ) {
+ return -1;
+ }
+
+ int i = -1;
+
+#ifdef SG_IO
+ if( d->useSgIo ) {
+ d->sgIo.interface_id= 'S';
+ d->sgIo.mx_sb_len = sizeof( struct request_sense );
+ d->sgIo.cmdp = d->cmd.cmd;
+ d->sgIo.sbp = (unsigned char*)&d->sense;
+ d->sgIo.flags = SG_FLAG_LUN_INHIBIT|SG_FLAG_DIRECT_IO;
+ d->sgIo.dxferp = data;
+ d->sgIo.dxfer_len = len;
+ d->sgIo.timeout = 5000;
+ if( dir == TR_DIR_READ )
+ d->sgIo.dxfer_direction = SG_DXFER_FROM_DEV;
+ else if( dir == TR_DIR_WRITE )
+ d->sgIo.dxfer_direction = SG_DXFER_TO_DEV;
+ else
+ d->sgIo.dxfer_direction = SG_DXFER_NONE;
+
+ i = ::ioctl( m_deviceHandle, SG_IO, &d->sgIo );
+
+ if( ( d->sgIo.info&SG_INFO_OK_MASK ) != SG_INFO_OK )
+ i = -1;
+ }
+ else {
+#endif
+ d->cmd.buffer = (unsigned char*)data;
+ d->cmd.buflen = len;
+ if( dir == TR_DIR_READ )
+ d->cmd.data_direction = CGC_DATA_READ;
+ else if( dir == TR_DIR_WRITE )
+ d->cmd.data_direction = CGC_DATA_WRITE;
+ else
+ d->cmd.data_direction = CGC_DATA_NONE;
+
+ i = ::ioctl( m_deviceHandle, CDROM_SEND_PACKET, &d->cmd );
+#ifdef SG_IO
+ }
+#endif
+
+ if( needToClose )
+ m_device->close();
+
+ if ( m_device ) {
+ m_device->usageUnlock();
+ }
+
+ if( i ) {
+ debugError( d->cmd.cmd[0],
+ d->sense.error_code,
+ d->sense.sense_key,
+ d->sense.asc,
+ d->sense.ascq );
+
+ int errCode =
+ (d->sense.error_code<<24) & 0xF000 |
+ (d->sense.sense_key<<16) & 0x0F00 |
+ (d->sense.asc<<8) & 0x00F0 |
+ (d->sense.ascq) & 0x000F;
+
+ return( errCode != 0 ? errCode : 1 );
+ }
+ else
+ return 0;
+}