Add common routine for SCSI MMC.

lib/scsi_mmc.c

@@ -0,0 +1,53 @@
+/*  Common MMC routines.
+
+    $Id: scsi_mmc.c,v 1.1 2004/06/27 21:58:12 rocky Exp $
+
+    Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
+
+    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 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 more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <cdio/cdio.h>
+#include <cdio/scsi_mmc.h>
+
+/*!
+  On input A MODE_SENSE command was issued and we have the results
+  in p. We interpret this and return a bit mask set according to the 
+  capabilities.
+ */
+cdio_drive_cap_t
+cdio_get_drive_cap_mmc(const uint8_t *p) 
+{
+  cdio_drive_cap_t i_drivetype=0;
+  /* Reader */
+  if (p[2] & 0x02) i_drivetype |= CDIO_DRIVE_CAP_CD_RW;
+  if (p[2] & 0x08) i_drivetype |= CDIO_DRIVE_CAP_DVD;
+  if (p[5] & 0x01) i_drivetype |= CDIO_DRIVE_CAP_CD_AUDIO;
+  
+  /* Writer */
+  if (p[3] & 0x01) i_drivetype |= CDIO_DRIVE_CAP_CD_R;
+  if (p[3] & 0x10) i_drivetype |= CDIO_DRIVE_CAP_DVD_R;
+  if (p[3] & 0x20) i_drivetype |= CDIO_DRIVE_CAP_DVD_RAM;
+  
+  if (p[6] & 0x01) i_drivetype |= CDIO_DRIVE_CAP_LOCK;
+  if (p[6] & 0x08) i_drivetype |= CDIO_DRIVE_CAP_OPEN_TRAY;
+  if (p[6] >> 5 != 0) 
+    i_drivetype |= CDIO_DRIVE_CAP_CLOSE_TRAY;
+  return i_drivetype;
+}