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/* Changes 2003 Steve Heck <steve.heck@am.sony.com>
$Date: 2007-03-04 15:27:11 -0800 (Sun, 04 Mar 2007) $
$Revision: 164 $
This program is free software; you may redistribute and/or modify it under
the terms of the GNU General Public License Version 2 as published by the
Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for complete details.
*/
/* This is the SCSI commands for AIX using GSC Generic SCSI Interface. */
#define LONG_PRINT_REQUEST_SENSE /* sigh! */
DEVICE_TYPE SCSI_OpenDevice(char *DeviceName)
{
int DeviceFD = open(DeviceName, 0);
if (DeviceFD < 0)
FatalError("cannot open SCSI device '%s' - %m\n", DeviceName);
return (DEVICE_TYPE) DeviceFD;
}
void SCSI_CloseDevice(char *DeviceName, DEVICE_TYPE DeviceFD)
{
if (close(DeviceFD) < 0)
FatalError("cannot close SCSI device '%s' - %m\n", DeviceName);
}
#define HAS_SCSI_TIMEOUT
static int timeout = 9 * 60;
void SCSI_Set_Timeout(int to)
{
timeout = to;
}
void SCSI_Default_Timeout(void)
{
timeout = 9 * 60; /* the default */
}
#ifdef DEBUG
int SCSI_DumpBuffer(int DataBufferLength, unsigned char *DataBuffer)
{
int i, j;
j = 0;
for (i = 0; i < DataBufferLength; i++)
{
if (j == 25)
{
fprintf(stderr, "\n");
j = 0;
}
if (j == 0)
{
fprintf(stderr, "%04x:", i);
}
if (j > 0)
{
fprintf(stderr, " ");
}
fprintf(stderr, "%02x", (int)DataBuffer[i]);
j++;
}
fprintf(stderr, "\n");
}
#endif
int SCSI_ExecuteCommand(DEVICE_TYPE DeviceFD,
Direction_T Direction,
CDB_T *CDB,
int CDB_Length,
void *DataBuffer,
int DataBufferLength,
RequestSense_T *RequestSense)
{
int ioctl_result;
char sbyte;
scmd_t scmd;
#ifdef DEBUG_SCSI
fprintf(stderr,"------CDB--------\n");
SCSI_DumpBuffer(CDB_Length,(char *)CDB);
#endif
/* memset(&scmd, 0, sizeof(struct scmd_t)); */
/* memset(RequestSense, 0, sizeof(RequestSense_T)); */
switch (Direction)
{
case Input:
scmd.rw = 1;
if (DataBufferLength > 0)
{
memset(DataBuffer, 0, DataBufferLength);
}
break;
case Output:
scmd.rw = 2;
break;
}
/* Set timeout to 5 minutes. */
#ifdef DEBUG_TIMEOUT
fprintf(stderr,"timeout=%d\n",timeout);
fflush(stderr);
#endif
scmd.timeval = timeout;
scmd.cdb = (caddr_t) CDB;
scmd.cdblen = CDB_Length;
scmd.data_buf = DataBuffer;
scmd.datalen = DataBufferLength;
scmd.sense_buf = (caddr_t) RequestSense;
scmd.senselen = sizeof(RequestSense_T);
scmd.statusp = &sbyte;
ioctl_result = ioctl(DeviceFD, GSC_CMD, (caddr_t) &scmd);
SCSI_Default_Timeout(); /* set it back to default, sigh. */
if (ioctl_result < 0)
{
#ifdef DEBUG
perror("mtx");
#endif
return ioctl_result;
}
if (sbyte != 0)
{
return -1;
}
#ifdef DEBUG_SCSI
if (Direction==Input)
{
fprintf(stderr,"--------input data-----------\n");
SCSI_DumpBuffer(DataBufferLength,DataBuffer);
}
#endif
return 0;
}
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