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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * kernBootStruct.h
24: * What the booter leaves behind for the kernel.
25: */
26:
27: /* The config table has room for 13 drivers if their config files
28: * are the maximum size allowed.
29: */
30: #define CONFIG_SIZE (13 * 4096)
31:
32: /* Maximum number of boot drivers supported, assuming their
33: * config files fit in the bootstruct.
34: */
35: #define NDRIVERS 64
36:
37: typedef struct {
38: char *address; // address where driver was loaded
39: int size; // entry point for driver
40: } driver_config_t;
41:
42: typedef struct {
43: unsigned short major_vers; // == 0 if not present
44: unsigned short minor_vers;
45: unsigned long cs32_base;
46: unsigned long cs16_base;
47: unsigned long ds_base;
48: unsigned long cs_length;
49: unsigned long ds_length;
50: unsigned long entry_offset;
51: union {
52: struct {
53: unsigned long mode_16 :1;
54: unsigned long mode_32 :1;
55: unsigned long idle_slows_cpu :1;
56: unsigned long reserved :29;
57: } f;
58: unsigned long data;
59: } flags;
60: unsigned long connected;
61: } APM_config_t;
62:
63: typedef struct _EISA_slot_info_t {
64: union {
65: struct {
66: unsigned char duplicateID :4;
67: unsigned char slotType :1;
68: unsigned char prodIDPresent :1;
69: unsigned char dupIDPresent :1;
70: } s;
71: unsigned char d;
72: } u_ID;
73: unsigned char configMajor;
74: unsigned char configMinor;
75: unsigned short checksum;
76: unsigned char numFunctions;
77: union {
78: struct {
79: unsigned char fnTypesPresent :1;
80: unsigned char memoryPresent :1;
81: unsigned char irqPresent :1;
82: unsigned char dmaPresent :1;
83: unsigned char portRangePresent:1;
84: unsigned char portInitPresent :1;
85: unsigned char freeFormPresent :1;
86: unsigned char reserved:1;
87: } s;
88: unsigned char d;
89: } u_resources;
90: unsigned char id[8];
91: } EISA_slot_info_t;
92:
93: typedef struct _EISA_func_info_t {
94: unsigned char slot;
95: unsigned char function;
96: unsigned char reserved[2];
97: unsigned char data[320];
98: } EISA_func_info_t;
99:
100: #define NUM_EISA_SLOTS 64
101:
102: typedef struct _PCI_bus_info_t {
103: union {
104: struct {
105: unsigned char configMethod1 :1;
106: unsigned char configMethod2 :1;
107: unsigned char :2;
108: unsigned char specialCycle1 :1;
109: unsigned char specialCycle2 :1;
110: } s;
111: unsigned char d;
112: } u_bus;
113: unsigned char maxBusNum;
114: unsigned char majorVersion;
115: unsigned char minorVersion;
116: unsigned char BIOSPresent;
117: } PCI_bus_info_t;
118:
119: /*
120: * Video information..
121: */
122:
123: struct boot_video {
124: unsigned long v_baseAddr; /* Base address of video memory */
125: unsigned long v_display; /* Display Code (if Applicable */
126: unsigned long v_rowBytes; /* Number of bytes per pixel row */
127: unsigned long v_width; /* Width */
128: unsigned long v_height; /* Height */
129: unsigned long v_depth; /* Pixel Depth */
130: };
131:
132: typedef struct boot_video boot_video;
133:
134: #define BOOT_STRING_LEN 160
135:
136: typedef struct {
137: short version;
138: char bootString[BOOT_STRING_LEN];// string we booted with
139: int magicCookie; // KERNBOOTMAGIC if struct valid
140: int numIDEs; // how many IDE drives
141: int rootdev; // booters guess as to rootdev
142: int convmem; // conventional memory
143: int extmem; // extended memory
144: char boot_file[128]; // name of the kernel we booted
145: int first_addr0; // first address for kern convmem
146: int diskInfo[4]; // bios info for bios dev 80-83
147: int graphicsMode; // did we boot in graphics mode?
148: int kernDev; // device kernel was fetched from
149: int numBootDrivers; // number of drivers loaded by booter
150: char *configEnd; // pointer to end of config files
151: int kaddr; // kernel load address
152: int ksize; // size of kernel
153: void *rld_entry; // entry point for standalone rld
154:
155: driver_config_t driverConfig[NDRIVERS];
156: APM_config_t apm_config;
157:
158: char _reserved[7500];
159:
160: boot_video video;
161:
162: PCI_bus_info_t pciInfo;
163:
164: int eisaConfigFunctions;
165: EISA_slot_info_t eisaSlotInfo[NUM_EISA_SLOTS];// EISA slot information
166:
167: char config[CONFIG_SIZE]; // the config file contents
168: } KERNBOOTSTRUCT;
169:
170: #define GRAPHICS_MODE 1
171: #define TEXT_MODE 0
172:
173: #define KERNSTRUCT_ADDR ((KERNBOOTSTRUCT *)0x11000)
174: #define KERNBOOTMAGIC 0xa7a7a7a7
175:
176: #ifndef EISA_CONFIG_ADDR
177: #define EISA_CONFIG_ADDR 0x20000
178: #define EISA_CONFIG_LEN 0x10000
179: #endif
180:
181: #ifndef KERNEL
182: extern KERNBOOTSTRUCT *kernBootStruct;
183: #endif
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