i386/libsa/kernBootStruct.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * kernBootStruct.h
  26  * What the booter leaves behind for the kernel.
  27  */
  28
  29 #ifndef __BOOT_KERNBOOTSTRUCT_H
  30 #define __BOOT_KERNBOOTSTRUCT_H
  31
  32 /* The config table has room for 13 drivers if their config files
  33  * are the maximum size allowed.
  34  */
  35 #define CONFIG_SIZE   (13 * 4096)
  36
  37 /* Maximum number of boot drivers supported, assuming their
  38  * config files fit in the bootstruct.
  39  */
  40 #define NDRIVERS      64
  41
  42 typedef struct {
  43     char *  address;    // address where driver was loaded
  44     int     size;       // entry point for driver
  45 } driver_config_t;
  46
  47 typedef struct {
  48     unsigned short      major_vers;     // == 0 if not present
  49     unsigned short      minor_vers;
  50     unsigned long       cs32_base;
  51     unsigned long       cs16_base;
  52     unsigned long       ds_base;
  53     unsigned long       cs_length;
  54     unsigned long       ds_length;
  55     unsigned long       entry_offset;
  56     union {
  57         struct {
  58             unsigned long       mode_16          :1;
  59             unsigned long       mode_32          :1;
  60             unsigned long       idle_slows_cpu   :1;
  61             unsigned long       reserved         :29;
  62         } f;
  63         unsigned long data;
  64     } flags;
  65     unsigned long       connected;
  66 } APM_config_t;
  67
  68 typedef struct _EISA_slot_info_t {
  69     union {
  70         struct {
  71             unsigned char       duplicateID      :4;
  72             unsigned char       slotType         :1;
  73             unsigned char       prodIDPresent    :1;
  74             unsigned char       dupIDPresent     :1;
  75         } s;
  76         unsigned char d;
  77     } u_ID;
  78     unsigned char       configMajor;
  79     unsigned char       configMinor;
  80     unsigned short      checksum;
  81     unsigned char       numFunctions;
  82     union {
  83         struct {
  84             unsigned char       fnTypesPresent   :1;
  85             unsigned char       memoryPresent    :1;
  86             unsigned char       irqPresent       :1;
  87             unsigned char       dmaPresent       :1;
  88             unsigned char       portRangePresent :1;
  89             unsigned char       portInitPresent  :1;
  90             unsigned char       freeFormPresent  :1;
  91             unsigned char       reserved         :1;
  92         } s;
  93         unsigned char d;
  94     } u_resources;
  95     unsigned char       id[8];
  96 } EISA_slot_info_t;
  97
  98 typedef struct _EISA_func_info_t {
  99     unsigned char       slot;
 100     unsigned char       function;
 101     unsigned char       reserved[2];
 102     unsigned char       data[320];
 103 } EISA_func_info_t;
 104
 105 #define NUM_EISA_SLOTS  64
 106
 107 typedef struct _PCI_bus_info_t {
 108     union {
 109         struct {
 110             unsigned char configMethod1 :1;
 111             unsigned char configMethod2 :1;
 112             unsigned char               :2;
 113             unsigned char specialCycle1 :1;
 114             unsigned char specialCycle2 :1;
 115         } s;
 116         unsigned char d;
 117     } u_bus;
 118     unsigned char maxBusNum;
 119     unsigned char majorVersion;
 120     unsigned char minorVersion;
 121     unsigned char BIOSPresent;
 122 } PCI_bus_info_t;
 123
 124 /*
 125  * Video information..
 126  */
 127 struct boot_video {
 128         unsigned long   v_baseAddr;     /* Base address of video memory */
 129         unsigned long   v_display;      /* Display Code (if Applicable */
 130         unsigned long   v_rowBytes;     /* Number of bytes per pixel row */
 131         unsigned long   v_width;        /* Width */
 132         unsigned long   v_height;       /* Height */
 133         unsigned long   v_depth;        /* Pixel Depth */
 134 };
 135
 136 typedef struct boot_video   boot_video;
 137
 138 #define BOOT_STRING_LEN         160
 139
 140 typedef struct {
 141     short   version;
 142     char    bootString[BOOT_STRING_LEN];  // string we booted with
 143     int     magicCookie;                  // KERNBOOTMAGIC if struct valid
 144     int     numIDEs;                      // how many IDE drives
 145     int     rootdev;                      // booters guess as to rootdev
 146     int     convmem;                      // conventional memory
 147     int     extmem;                       // extended memory
 148     char    boot_file[128];               // name of the kernel we booted
 149     int     first_addr0;                  // first address for kern convmem
 150     int     diskInfo[4];                  // bios info for bios dev 80-83
 151     int     graphicsMode;                 // did we boot in graphics mode?
 152     int     kernDev;                      // device kernel was fetched from
 153     int     numBootDrivers;               // number of drivers loaded by booter
 154     char *  configEnd;                    // pointer to end of config files
 155     int     kaddr;                        // kernel load address
 156     int     ksize;                        // size of kernel
 157     void *  rld_entry;                    // entry point for standalone rld
 158
 159     driver_config_t   driverConfig[NDRIVERS];
 160     APM_config_t      apm_config;
 161
 162     char              _reserved[7500];
 163
 164     boot_video        video;
 165
 166     PCI_bus_info_t    pciInfo;
 167
 168     int               eisaConfigFunctions;
 169     EISA_slot_info_t  eisaSlotInfo[NUM_EISA_SLOTS];
 170
 171     char   config[CONFIG_SIZE];               // the config file contents
 172 } KERNBOOTSTRUCT;
 173
 174 #define GRAPHICS_MODE     1
 175 #define TEXT_MODE         0
 176
 177 #define KERNSTRUCT_ADDR   ((KERNBOOTSTRUCT *) 0x11000)
 178 #define KERNBOOTMAGIC     0xa7a7a7a7
 179
 180 #if 0
 181 #ifndef EISA_CONFIG_ADDR
 182 #define EISA_CONFIG_ADDR        0x20000
 183 #define EISA_CONFIG_LEN         0x10000
 184 #endif
 185 #endif
 186
 187 #ifndef KERNEL
 188 extern KERNBOOTSTRUCT *   kernBootStruct;
 189 #endif
 190
 191 #endif /* !__BOOT_KERNBOOTSTRUCT_H */