Add routine to get tray status (open/closed) and sample program.

Seems broken at least on SuSE 10.1 if not other GNU/Linux's though.
2006-10-11 12:38:17 +00:00
parent 932617cf75
commit c1f11393ac
9 changed files with 211 additions and 14 deletions
--- a/example/mmc3.c
+++ b/example/mmc3.c
@@ -0,0 +1,131 @@
+/*
+  $Id: mmc3.c,v 1.1 2006/10/11 12:38:18 rocky Exp $
+
+  Copyright (C) 2006 Rocky Bernstein <rocky@cpan.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.
+  
+  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
+*/
+
+/* Simple program to show use of SCSI MMC interface. Is basically the
+   the libdio scsi_mmc_get_hwinfo() routine.
+*/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <cdio/cdio.h>
+#include <cdio/mmc.h>
+#include <string.h>
+
+/* Set how long to wait for MMC commands to complete */
+#define DEFAULT_TIMEOUT_MS 10000
+
+int
+main(int argc, const char *argv[])
+{
+  CdIo_t *p_cdio;
+  driver_return_code_t ret;
+  driver_id_t driver_id = DRIVER_DEVICE;
+  char *psz_drive = NULL;
+  bool do_eject = false;
+  
+  if (argc > 1) 
+    psz_drive = strdup(argv[1]);
+
+  if (!psz_drive) {
+    psz_drive = cdio_get_default_device_driver(&driver_id);
+    if (!psz_drive) {
+      printf("Can't find a CD-ROM\n");
+     exit(1);
+    }
+  }
+
+  p_cdio = cdio_open (psz_drive, driver_id);
+  if (!p_cdio) {
+    printf("Can't open %s\n", psz_drive);
+    exit(2);
+  }
+  
+  ret = mmc_get_tray_status(p_cdio);
+  switch(ret) {
+  case 0:
+    printf("CD-ROM drive %s is closed.\n", psz_drive);
+    do_eject = true;
+    break;
+  case 1:
+    printf("CD-ROM drive %s is open.\n", psz_drive);
+    break;
+  default:
+    printf("Error status for drive %s: %s.\n", psz_drive,
+	   cdio_driver_errmsg(ret));
+    return 1;
+  }
+  
+  ret = mmc_get_media_changed(p_cdio);
+  switch(ret) {
+  case 0:
+    printf("CD-ROM drive %s media not changed since last test.\n", psz_drive);
+    break;
+  case 1:
+    printf("CD-ROM drive %s media changed since last test.\n", psz_drive);
+    break;
+  default:
+    printf("Error status for drive %s: %s.\n", psz_drive, 
+	   cdio_driver_errmsg(ret));
+    return 1;
+  }
+
+  if (do_eject)
+    ret = cdio_eject_media_drive(psz_drive);
+  else
+    ret = cdio_close_tray(psz_drive, &driver_id);
+
+  ret = mmc_get_tray_status(p_cdio);
+  switch(ret) {
+  case 0:
+    printf("CD-ROM drive %s is closed.\n", psz_drive);
+    break;
+  case 1:
+    printf("CD-ROM drive %s is open.\n", psz_drive);
+    break;
+  default:
+    printf("Error status for drive %s: %s.\n", psz_drive,
+	   cdio_driver_errmsg(ret));
+    return 1;
+  }
+  
+  ret = mmc_get_media_changed(p_cdio);
+  switch(ret) {
+  case 0:
+    printf("CD-ROM drive %s media not changed since last test.\n", psz_drive);
+    break;
+  case 1:
+    printf("CD-ROM drive %s media changed since last test.\n", psz_drive);
+    break;
+  default:
+    printf("Error status for drive %s: %s.\n", psz_drive,
+	   cdio_driver_errmsg(ret));
+    return 1;
+  }
+
+  free(psz_drive);
+  cdio_destroy(p_cdio);
+
+  return 0;
+}