include/asm-ia64/sn/xtalk/xswitch.h

   1 /* $Id$
   2  *
   3  * This file is subject to the terms and conditions of the GNU General Public
   4  * License.  See the file "COPYING" in the main directory of this archive
   5  * for more details.
   6  *
   7  * Copyright (C) 1992-1997,2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
   8  */
   9 #ifndef _ASM_SN_XTALK_XSWITCH_H
  10 #define _ASM_SN_XTALK_XSWITCH_H
  11
  12 /*
  13  * xswitch.h - controls the format of the data
  14  * provided by xswitch verticies back to the
  15  * xtalk bus providers.
  16  */
  17
  18 #ifndef __ASSEMBLY__
  19
  20 #include <linux/devfs_fs_kernel.h>
  21 #include <asm/sn/xtalk/xtalk.h>
  22
  23 typedef struct xswitch_info_s *xswitch_info_t;
  24
  25 typedef int
  26                         xswitch_reset_link_f(devfs_handle_t xconn);
  27
  28 typedef struct xswitch_provider_s {
  29     xswitch_reset_link_f   *reset_link;
  30 } xswitch_provider_t;
  31
  32 extern void             xswitch_provider_register(devfs_handle_t sw_vhdl, xswitch_provider_t * xsw_fns);
  33
  34 xswitch_reset_link_f    xswitch_reset_link;
  35
  36 extern xswitch_info_t   xswitch_info_new(devfs_handle_t vhdl);
  37
  38 extern void             xswitch_info_link_is_ok(xswitch_info_t xswitch_info,
  39                                                 xwidgetnum_t port);
  40 extern void             xswitch_info_vhdl_set(xswitch_info_t xswitch_info,
  41                                               xwidgetnum_t port,
  42                                               devfs_handle_t xwidget);
  43 extern void             xswitch_info_master_assignment_set(xswitch_info_t xswitch_info,
  44                                                        xwidgetnum_t port,
  45                                                devfs_handle_t master_vhdl);
  46
  47 extern xswitch_info_t   xswitch_info_get(devfs_handle_t vhdl);
  48
  49 extern int              xswitch_info_link_ok(xswitch_info_t xswitch_info,
  50                                              xwidgetnum_t port);
  51 extern devfs_handle_t     xswitch_info_vhdl_get(xswitch_info_t xswitch_info,
  52                                               xwidgetnum_t port);
  53 extern devfs_handle_t     xswitch_info_master_assignment_get(xswitch_info_t xswitch_info,
  54                                                       xwidgetnum_t port);
  55
  56 extern int              xswitch_id_get(devfs_handle_t vhdl);
  57 extern void             xswitch_id_set(devfs_handle_t vhdl,int xbow_num);
  58
  59 #endif                          /* __ASSEMBLY__ */
  60
  61 #endif                          /* _ASM_SN_XTALK_XSWITCH_H */