added new identify sub command (merged from CVS)

diff --git a/palacios/src/devices/ramdisk.c b/palacios/src/devices/ramdisk.c
index 2d862fe..b8bbd80 100644 (file)
--- a/palacios/src/devices/ramdisk.c
+++ b/palacios/src/devices/ramdisk.c
@@ -843,6 +843,44 @@ static int write_cmd_port(ushort_t port, void * src, uint_t length, struct vm_de
             value);
 
   switch (value) {
+  case 0xec: // IDENTIFY DEVICE
+    {
+      if (drive->device_type == IDE_NONE) {
+       PrintError("\t\tError: disk ata%d-%d not present, aborting\n", 
+                  get_channel_no(ramdisk, channel), 
+                  get_drive_no(channel, drive));
+       rd_command_aborted(dev, channel, value);
+       break;
+      } else if (drive->device_type == IDE_CDROM) {
+       controller->head_no        = 0;
+       controller->sector_count   = 1;
+       controller->sector_no      = 1;
+       controller->cylinder_no    = 0xeb14;
+       rd_command_aborted(dev, channel, 0xec);
+      } else {
+       PrintError("\t\tError: Want to identify HDD!!\n");
+       /*
+         SELECTED_CONTROLLER(channel).current_command = value;
+         SELECTED_CONTROLLER(channel).error_register = 0;
+         
+         // See ATA/ATAPI-4, 8.12
+         SELECTED_CONTROLLER(channel).status.busy  = 0;
+         SELECTED_CONTROLLER(channel).status.drive_ready = 1;
+         SELECTED_CONTROLLER(channel).status.write_fault = 0;
+         SELECTED_CONTROLLER(channel).status.drq   = 1;
+         SELECTED_CONTROLLER(channel).status.err   = 0;
+         
+         SELECTED_CONTROLLER(channel).status.seek_complete = 1;
+         SELECTED_CONTROLLER(channel).status.corrected_data = 0;
+         
+         SELECTED_CONTROLLER(channel).buffer_index = 0;
+         raise_interrupt(channel);
+         identify_drive(channel);
+       */
+      }
+
+    break;
+    }
     // ATAPI commands
   case 0xa1: // IDENTIFY PACKET DEVICE
     {