[apple/xnu.git] / osfmk / i386 / AT386 / kernBootStruct.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * kernBootStruct.h
 * What the booter leaves behind for the kernel.
 */

/* The config table has room for 13 drivers if their config files
 * are the maximum size allowed.
 */
#define CONFIG_SIZE (13 * 4096)

/* Maximum number of boot drivers supported, assuming their
 * config files fit in the bootstruct.
 */
#define NDRIVERS		64

typedef struct {
    char    *address;			// address where driver was loaded
    int	    size;			// entry point for driver
} driver_config_t;

typedef struct {
    unsigned short	major_vers;	// == 0 if not present
    unsigned short	minor_vers;
    unsigned long	cs32_base;
    unsigned long	cs16_base;
    unsigned long	ds_base;
    unsigned long	cs_length;
    unsigned long	ds_length;
    unsigned long	entry_offset;
    union {
	struct {
	    unsigned long	mode_16		:1;
	    unsigned long	mode_32		:1;
	    unsigned long	idle_slows_cpu	:1;
	    unsigned long	reserved	:29;
	} f;
	unsigned long data;
    } flags;
    unsigned long	connected;
} APM_config_t;

typedef struct _EISA_slot_info_t {
    union {
	struct {
	    unsigned char	duplicateID	:4;
	    unsigned char	slotType	:1;
	    unsigned char	prodIDPresent	:1;
	    unsigned char	dupIDPresent	:1;
	} s;
	unsigned char d;
    } u_ID;
    unsigned char	configMajor;
    unsigned char 	configMinor;
    unsigned short	checksum;
    unsigned char	numFunctions;
    union {
	struct {
	    unsigned char	fnTypesPresent	:1;
	    unsigned char	memoryPresent	:1;
	    unsigned char	irqPresent	:1;
	    unsigned char	dmaPresent	:1;
	    unsigned char	portRangePresent:1;
	    unsigned char	portInitPresent	:1;
	    unsigned char	freeFormPresent	:1;
	    unsigned char	reserved:1;
	} s;
	unsigned char d;
    } u_resources;
    unsigned char	id[8];
} EISA_slot_info_t;

typedef struct _EISA_func_info_t {
    unsigned char	slot;
    unsigned char	function;
    unsigned char	reserved[2];
    unsigned char	data[320];
} EISA_func_info_t;

#define NUM_EISA_SLOTS	64

typedef struct _PCI_bus_info_t {
    union {
	struct {
	    unsigned char configMethod1	:1;
	    unsigned char configMethod2	:1;
	    unsigned char		:2;
	    unsigned char specialCycle1	:1;
	    unsigned char specialCycle2	:1;
	} s;
	unsigned char d;
    } u_bus;
    unsigned char maxBusNum;
    unsigned char majorVersion;
    unsigned char minorVersion;
    unsigned char BIOSPresent;
} PCI_bus_info_t;

/*
 * Video information..
 */

struct boot_video {
        unsigned long   v_baseAddr;     /* Base address of video memory */
        unsigned long   v_display;      /* Display Code (if Applicable */
        unsigned long   v_rowBytes;     /* Number of bytes per pixel row */
        unsigned long   v_width;        /* Width */
        unsigned long   v_height;       /* Height */
        unsigned long   v_depth;        /* Pixel Depth */
};

typedef struct boot_video       boot_video;

#define BOOT_STRING_LEN		160

typedef struct {
    short   version;
    char    bootString[BOOT_STRING_LEN];// string we booted with
    int	    magicCookie;		// KERNBOOTMAGIC if struct valid
    int	    numIDEs;			// how many IDE drives
    int	    rootdev;			// booters guess as to rootdev
    int	    convmem;			// conventional memory
    int	    extmem;			// extended memory
    char    boot_file[128];		// name of the kernel we booted
    int	    first_addr0;		// first address for kern convmem
    int	    diskInfo[4];		// bios info for bios dev 80-83
    int	    graphicsMode;		// did we boot in graphics mode?
    int	    kernDev;			// device kernel was fetched from
    int     numBootDrivers;		// number of drivers loaded by booter    
    char    *configEnd;			// pointer to end of config files
    int	    kaddr;			// kernel load address
    int     ksize;			// size of kernel
    void    *rld_entry;			// entry point for standalone rld

    driver_config_t driverConfig[NDRIVERS];
    APM_config_t apm_config;
    
    char   _reserved[7500];

    boot_video video;

    PCI_bus_info_t pciInfo;
    
    int	    eisaConfigFunctions;
    EISA_slot_info_t eisaSlotInfo[NUM_EISA_SLOTS];// EISA slot information

    char   config[CONFIG_SIZE];		// the config file contents
} KERNBOOTSTRUCT;

#define GRAPHICS_MODE	1
#define TEXT_MODE 0

#define KERNSTRUCT_ADDR ((KERNBOOTSTRUCT *)0x11000)
#define KERNBOOTMAGIC 0xa7a7a7a7

#ifndef EISA_CONFIG_ADDR
#define EISA_CONFIG_ADDR	0x20000
#define EISA_CONFIG_LEN		0x10000
#endif

#ifndef KERNEL
extern KERNBOOTSTRUCT *kernBootStruct;
#endif
Commit	Line	Data
1c79356b A	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