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floppy-no.c
Package: linux-2.4.20.tar.gz　[view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 1k
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Linux-Unix program

Development Platform:

Unix_Linux

floppy-no.c：Code Content
  1. /*
  2.  * This file is subject to the terms and conditions of the GNU General Public
  3.  * License.  See the file "COPYING" in the main directory of this archive
  4.  * for more details.
  5.  *
  6.  * Dummy file for machines without standard floppy drives.
  7.  *
  8.  * Copyright (C) 1998 by Ralf Baechle
  9.  */
  10. #include <linux/init.h>
  11. #include <linux/kernel.h>
  12. #include <linux/mm.h>
  13. #include <asm/floppy.h>
  15. /*
  16.  * How to access the FDC's registers.
  17.  */
  18. static void no_fd_dummy(void)
  19. {
  20. panic("no_fd_dummy called - shouldn't happen");
  21. }
  23. static unsigned long no_fd_getfdaddr1(void)
  24. {
  25. return (unsigned long)-1; /* No FDC nowhere ... */
  26. }
  28. static unsigned long no_fd_drive_type(unsigned long n)
  29. {
  30. return 0;
  31. }
  33. struct fd_ops no_fd_ops = {
  34. /*
  35.  * How to access the floppy controller's ports
  36.  */
  37. (void *) no_fd_dummy,
  38. (void *) no_fd_dummy,
  39. /*
  40.  * How to access the floppy DMA functions.
  41.  */
  42. (void *) no_fd_dummy,
  43. (void *) no_fd_dummy,
  44. (void *) no_fd_dummy,
  45. (void *) no_fd_dummy,
  46. (void *) no_fd_dummy,
  47. (void *) no_fd_dummy,
  48. (void *) no_fd_dummy,
  49. (void *) no_fd_dummy,
  50. (void *) no_fd_dummy,
  51. (void *) no_fd_dummy,
  52. (void *) no_fd_dummy,
  53. no_fd_getfdaddr1,
  54. (void *) no_fd_dummy,
  55. (void *) no_fd_dummy,
  56. no_fd_drive_type
  57. };