Fallback to empty image drive if no physical/virtual drives available.

diff --git a/blkdev.cpp b/blkdev.cpp
index 9207423c72b3106a72afe7c3802b45c9c3b06b16..5a15083dee3e210168e8c59205c6a6b3281fd141 100644 (file)
--- a/blkdev.cpp
+++ b/blkdev.cpp
@@ -189,6 +189,13 @@ static void install_driver (int flags)
                                }
                                break;
                        }
+                       // use image mode if driver disabled
+                       for (int j = 1; j < NUM_DEVICE_TABLE_ENTRIES; j++) {
+                               if (devicetable[j] == st->device_func && driver_installed[j] < 0) {
+                                       st->device_func = devicetable[SCSI_UNIT_IMAGE];
+                                       st->scsiemu = true;
+                               }
+                       }
                }
        }
 
@@ -201,7 +208,14 @@ static void install_driver (int flags)
                                struct blkdevstate *st = &state[i];
                                if (st->device_func == devicetable[j]) {
                                        int ok = st->device_func->openbus (0);
-                                       driver_installed[j] = 1;
+                                       if (!ok && st->device_func != devicetable[SCSI_UNIT_IMAGE]) {
+                                               st->device_func = devicetable[SCSI_UNIT_IMAGE];
+                                               st->scsiemu = true;
+                                               write_log (_T("Fallback to image mode\n"));
+                                               driver_installed[j] = -1;
+                                       } else {
+                                               driver_installed[j] = 1;
+                                       }
                                        write_log (_T("%s driver installed, ok=%d\n"), st->device_func->name, ok);
                                        break;
                                }