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

   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  * Copyright (C) 1992-1997, 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
   7  */
   8 #ifndef _ASM_IA64_SN_XTALK_XTALK_PRIVATE_H
   9 #define _ASM_IA64_SN_XTALK_XTALK_PRIVATE_H
  10
  11 #include <asm/sn/ioerror.h>        /* for error function and arg types */
  12 #include <asm/sn/xtalk/xwidget.h>
  13 #include <asm/sn/xtalk/xtalk.h>
  14
  15 /*
  16  * xtalk_private.h -- private definitions for xtalk
  17  * crosstalk drivers should NOT include this file.
  18  */
  19
  20 /*
  21  * All Crosstalk providers set up PIO using this information.
  22  */
  23 struct xtalk_piomap_s {
  24     vertex_hdl_t            xp_dev;     /* a requestor of this mapping */
  25     xwidgetnum_t            xp_target;  /* target (node's widget number) */
  26     iopaddr_t               xp_xtalk_addr;      /* which crosstalk addr is mapped */
  27     size_t                  xp_mapsz;   /* size of this mapping */
  28     caddr_t                 xp_kvaddr;  /* kernel virtual address to use */
  29 };
  30
  31 /*
  32  * All Crosstalk providers set up DMA using this information.
  33  */
  34 struct xtalk_dmamap_s {
  35     vertex_hdl_t            xd_dev;     /* a requestor of this mapping */
  36     xwidgetnum_t            xd_target;  /* target (node's widget number) */
  37 };
  38
  39 /*
  40  * All Crosstalk providers set up interrupts using this information.
  41  */
  42 struct xtalk_intr_s {
  43     vertex_hdl_t            xi_dev;     /* requestor of this intr */
  44     xwidgetnum_t            xi_target;  /* master's widget number */
  45     xtalk_intr_vector_t     xi_vector;  /* 8-bit interrupt vector */
  46     iopaddr_t               xi_addr;    /* xtalk address to generate intr */
  47     void                   *xi_sfarg;   /* argument for setfunc */
  48     xtalk_intr_setfunc_t    xi_setfunc;         /* device's setfunc routine */
  49 };
  50
  51 /*
  52  * Xtalk interrupt handler structure access functions
  53  */
  54 #define xwidget_hwid_is_sn1_xswitch(_hwid)      \
  55                 (((_hwid)->part_num == XXBOW_WIDGET_PART_NUM ||         \
  56                   (_hwid)->part_num == PXBOW_WIDGET_PART_NUM) &&        \
  57                  ((_hwid)->mfg_num == XXBOW_WIDGET_MFGR_NUM ))
  58
  59 #define xwidget_hwid_is_xswitch(_hwid)  \
  60                         xwidget_hwid_is_sn1_xswitch(_hwid)
  61
  62 /* common iograph info for all widgets,
  63  * stashed in FASTINFO of widget connection points.
  64  */
  65 struct xwidget_info_s {
  66     char                   *w_fingerprint;
  67     vertex_hdl_t            w_vertex;   /* back pointer to vertex */
  68     xwidgetnum_t            w_id;       /* widget id */
  69     struct xwidget_hwid_s   w_hwid;     /* hardware identification (part/rev/mfg) */
  70     vertex_hdl_t            w_master;   /* CACHED widget's master */
  71     xwidgetnum_t            w_masterid;         /* CACHED widget's master's widgetnum */
  72     error_handler_f        *w_efunc;    /* error handling function */
  73     error_handler_arg_t     w_einfo;    /* first parameter for efunc */
  74     char                   *w_name;     /* canonical hwgraph name */
  75 };
  76
  77 extern char             widget_info_fingerprint[];
  78
  79 #endif                          /* _ASM_IA64_SN_XTALK_XTALK_PRIVATE_H */