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/*
*
* $Id: k3bscsicommand_bsd.cpp 679320 2007-06-23 15:57:22Z 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>
*
* 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 <stdio.h>
#include <errno.h>
#include <camlib.h>
#include <cam/scsi/scsi_message.h>
#include <cam/scsi/scsi_pass.h>
#define ERRCODE(s) ((((s)[2]&0x0F)<<16)|((s)[12]<<8)|((s)[13]))
#define EMEDIUMTYPE EINVAL
#define ENOMEDIUM ENODEV
#define CREAM_ON_ERRNO(s) do { \
switch ((s)[12]) \
{ case 0x04: errno=EAGAIN; break; \
case 0x20: errno=ENODEV; break; \
case 0x21: if ((s)[13]==0) errno=ENOSPC; \
else errno=EINVAL; \
break; \
case 0x30: errno=EMEDIUMTYPE; break; \
case 0x3A: errno=ENOMEDIUM; break; \
} \
} while(0)
class K3bDevice::ScsiCommand::Private
{
public:
union ccb ccb;
};
void K3bDevice::ScsiCommand::clear()
{
memset (&d->ccb,0,sizeof(ccb));
}
unsigned char& K3bDevice::ScsiCommand::operator[]( size_t i )
{
if( d->ccb.csio.cdb_len < i+1 )
d->ccb.csio.cdb_len = i+1;
return d->ccb.csio.cdb_io.cdb_bytes[i];
}
int K3bDevice::ScsiCommand::transport( TransportDirection dir,
void* data,
size_t len )
{
if( !m_device )
return -1;
m_device->usageLock();
bool needToClose = false;
if( !m_device->isOpen() ) {
needToClose = true;
}
if( !m_device->open( true ) ) {
m_device->usageUnlock();
return -1;
}
d->ccb.ccb_h.path_id = m_device->handle()->path_id;
d->ccb.ccb_h.target_id = m_device->handle()->target_id;
d->ccb.ccb_h.target_lun = m_device->handle()->target_lun;
k3bDebug() << "(K3bDevice::ScsiCommand) transport command " << TQString::number((int)d->ccb.csio.cdb_io.cdb_bytes[0], 16) << ", length: " << (int)d->ccb.csio.cdb_len << endl;
int ret=0;
int direction = CAM_DEV_TQFRZDIS;
if (!len)
direction |= CAM_DIR_NONE;
else
direction |= (dir & TR_DIR_READ)?CAM_DIR_IN : CAM_DIR_OUT;
cam_fill_csio (&(d->ccb.csio), 1, 0 /* NULL */, direction, MSG_SIMPLE_TQ_TAG, (u_int8_t *)data, len, sizeof(d->ccb.csio.sense_data), d->ccb.csio.cdb_len, 30*1000);
unsigned char * sense = (unsigned char *)&d->ccb.csio.sense_data;
ret = cam_send_ccb(m_device->handle(), &d->ccb);
if (ret < 0) {
k3bDebug() << "(K3bDevice::ScsiCommand) transport failed: " << ret << endl;
if( needToClose )
m_device->close();
m_device->usageUnlock();
struct scsi_sense_data* senset = (struct scsi_sense_data*)sense;
debugError( d->ccb.csio.cdb_io.cdb_bytes[0],
senset->error_code & SSD_ERRCODE,
senset->flags & SSD_KEY,
senset->add_sense_code,
senset->add_sense_code_qual );
int result = (((senset->error_code & SSD_ERRCODE)<<24) & 0xF000 |
((senset->flags & SSD_KEY)<<16) & 0x0F00 |
(senset->add_sense_code<<8) & 0x00F0 |
(senset->add_sense_code_qual) & 0x000F );
return result ? result : ret;
}
else if ((d->ccb.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
if( needToClose )
m_device->close();
m_device->usageUnlock();
return 0;
}
errno = EIO;
// FreeBSD 5-CURRENT since 2003-08-24, including 5.2 fails to
// pull sense data automatically, at least for ATAPI transport,
// so I reach for it myself...
if ((d->ccb.csio.scsi_status==SCSI_STATUS_CHECK_COND) &&
!(d->ccb.ccb_h.status&CAM_AUTOSNS_VALID))
{
u_int8_t _sense[18];
u_int32_t resid=d->ccb.csio.resid;
memset(_sense,0,sizeof(_sense));
operator[](0) = 0x03; // REQUEST SENSE
d->ccb.csio.cdb_io.cdb_bytes[4] = sizeof(_sense);
d->ccb.csio.cdb_len = 6;
d->ccb.csio.ccb_h.flags |= CAM_DIR_IN|CAM_DIS_AUTOSENSE;
d->ccb.csio.data_ptr = _sense;
d->ccb.csio.dxfer_len = sizeof(_sense);
d->ccb.csio.sense_len = 0;
ret = cam_send_ccb(m_device->handle(), &d->ccb);
d->ccb.csio.resid = resid;
if (ret<0)
{
k3bDebug() << "(K3bDevice::ScsiCommand) transport failed (2): " << ret << endl;
ret = -1;
struct scsi_sense_data* senset = (struct scsi_sense_data*)sense;
debugError( d->ccb.csio.cdb_io.cdb_bytes[0],
senset->error_code & SSD_ERRCODE,
senset->flags & SSD_KEY,
senset->add_sense_code,
senset->add_sense_code_qual );
if( needToClose )
m_device->close();
m_device->usageUnlock();
return -1;
}
if ((d->ccb.ccb_h.status&CAM_STATUS_MASK) != CAM_REQ_CMP)
{
k3bDebug() << "(K3bDevice::ScsiCommand) transport failed (3): " << ret << endl;
errno=EIO,-1;
ret = -1;
struct scsi_sense_data* senset = (struct scsi_sense_data*)sense;
debugError( d->ccb.csio.cdb_io.cdb_bytes[0],
senset->error_code & SSD_ERRCODE,
senset->flags & SSD_KEY,
senset->add_sense_code,
senset->add_sense_code_qual );
if( needToClose )
m_device->close();
m_device->usageUnlock();
return -1;
}
memcpy(sense,_sense,sizeof(_sense));
}
ret = ERRCODE(sense);
k3bDebug() << "(K3bDevice::ScsiCommand) transport failed (4): " << ret << endl;
if (ret == 0)
ret = -1;
else
CREAM_ON_ERRNO(((unsigned char *)&d->ccb.csio.sense_data));
struct scsi_sense_data* senset = (struct scsi_sense_data*)sense;
debugError( d->ccb.csio.cdb_io.cdb_bytes[0],
senset->error_code & SSD_ERRCODE,
senset->flags & SSD_KEY,
senset->add_sense_code,
senset->add_sense_code_qual );
if( needToClose )
m_device->close();
m_device->usageUnlock();
return ret;
}
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