Import Upstream version 1.2.16rel

1 files changed, 75 insertions, 0 deletions

diff --git a/scsi_sgi.c b/scsi_sgi.c
new file mode 100644
index 0000000..c215de9
--- /dev/null
+++ b/scsi_sgi.c
@@ -0,0 +1,75 @@
+/* Copyright 1997, 1998 Leonard Zubkoff <lnz@dandelion.com>
+   Changes copyright 2000 Eric Green <eric@estinc.com>
+
+$Date: 2001/06/05 17:10:26 $
+$Revision: 1.1.1.1 $
+
+  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 SGI Iris */
+DEVICE_TYPE SCSI_OpenDevice(char *DeviceName)
+{
+  dsreq_t *DeviceFD = dsopen(DeviceName, O_RDWR | O_EXCL);
+  if (DeviceFD == 0)
+    FatalError("cannot open SCSI device '%s' - %m\n", DeviceName);
+  return (DEVICE_TYPE) DeviceFD;
+}
+
+
+void SCSI_CloseDevice(char *DeviceName,
+			     DEVICE_TYPE DeviceFD)
+{
+  dsclose((dsreq_t *) DeviceFD);
+}
+
+#define MTX_HZ 1000 
+#define MTX_DEFAULT_SCSI_TIMEOUT 60*5*MTX_HZ /* 5 minutes! */
+
+static int mtx_default_timeout = MTX_DEFAULT_SCSI_TIMEOUT ;
+void SCSI_Set_Timeout(int sec) {
+  mtx_default_timeout=sec*MTX_HZ;
+}
+
+void SCSI_Default_Timeout() {
+  mtx_default_timeout=MTX_DEFAULT_SCSI_TIMEOUT;
+}
+
+int SCSI_ExecuteCommand(DEVICE_TYPE DeviceFD,
+			       Direction_T Direction,
+			       CDB_T *CDB,
+			       int CDB_Length,
+			       void *DataBuffer,
+			       int DataBufferLength,
+			       RequestSense_T *RequestSense)
+{
+  dsreq_t *dsp = (dsreq_t *) DeviceFD;
+  int Result;
+  memset(RequestSense, 0, sizeof(RequestSense_T));
+  memcpy(CMDBUF(dsp), CDB, CDB_Length);
+  if (Direction == Input)
+  {
+     memset(DataBuffer, 0, DataBufferLength);
+     filldsreq(dsp, (unsigned char *) DataBuffer, DataBufferLength,
+	       DSRQ_READ | DSRQ_SENSE);
+  }
+  else filldsreq(dsp, (unsigned char *) DataBuffer, DataBufferLength,
+		 DSRQ_WRITE | DSRQ_SENSE);
+  /* Set 5 minute timeout. */
+  /* TIME(dsp) = 300 * 1000; */
+  TIME(dsp) = mtx_default_timeout;
+  Result = doscsireq(getfd((dsp)), dsp);
+  if (SENSESENT(dsp) > 0)
+    memcpy(RequestSense, SENSEBUF(dsp),
+	   min(sizeof(RequestSense_T), SENSESENT(dsp)));
+  SCSI_Default_Timeout(); /* reset the mtx default timeout */
+  return Result;
+}