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  1. /*
  2. * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
  3. *
  4. * This program is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU General Public License as
  6. * published by the Free Software Foundation; either version 2 of the
  7. * License, or any later version.
  8. *
  9. * This program is distributed in the hope that it will be useful, but
  10. * WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17. * 02110-1301, USA.
  18. *
  19. * You can also choose to distribute this program under the terms of
  20. * the Unmodified Binary Distribution Licence (as given in the file
  21. * COPYING.UBDL), provided that you have satisfied its requirements.
  22. */
  23. FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  24. #include <errno.h>
  25. #include <ipxe/interface.h>
  26. #include <ipxe/edd.h>
  27. /** @file
  28. *
  29. * Enhanced Disk Drive specification
  30. *
  31. */
  32. /**
  33. * Describe a disk device using EDD
  34. *
  35. * @v intf Interface
  36. * @v type EDD interface type
  37. * @v path EDD device path
  38. * @ret rc Return status code
  39. */
  40. int edd_describe ( struct interface *intf, struct edd_interface_type *type,
  41. union edd_device_path *path ) {
  42. struct interface *dest;
  43. edd_describe_TYPE ( void * ) *op =
  44. intf_get_dest_op ( intf, edd_describe, &dest );
  45. void *object = intf_object ( dest );
  46. int rc;
  47. if ( op ) {
  48. rc = op ( object, type, path );
  49. } else {
  50. /* Default is to not support this operation */
  51. rc = -ENOTSUP;
  52. }
  53. intf_put ( dest );
  54. return rc;
  55. }