1/* $NetBSD: rs6000_bootrec.h,v 1.2 2021/07/24 21:31:34 andvar Exp $ */
2
3#include <sys/types.h>
4
5#ifndef __RS6000_BOOTREC_H__
6#define __RS6000_BOOTREC_H__
7
8#define IPLRECID	0xC9C2D4C1	/* IBMA in EBCIDIC */
9#define CONFRECID	0xF8E9DACB	/* no idea */
10
11typedef struct rs6000_boot_record {
12	uint32_t	ipl_record;	/* always IPLRECID */
13	char		pad1[20];
14	uint32_t	formatted_cap;	/* sectors in the disk */
15	char		floppy_last_head; /* nrof heads -1 */
16	char		floppy_last_sec;/* sectors per track starting at 1 */
17	char		pad2[6];
18	uint32_t	bootcode_len;	/* in sectors, 0 means no boot code */
19	uint32_t	bootcode_off;	/* 0 if no bootcode, or byte offset to
20					 * first instruction */
21	uint32_t	bootpart_start;	/* sec num of boot partition */
22	uint32_t	bootprg_start;	/* sec num of boot code, 0 for none */
23	uint32_t	bootpart_len;	/* len in sectors of boot part. */
24	uint32_t	boot_load_addr;	/* 512 byte boundary load addr */
25	char		boot_frag;	/* 0/1 fragmentation allowed */
26	char		boot_emul;	/* ROS network emulation flag:
27					 * 0x0 => not an emul support image
28					 * 0x1 => ROS network emulation code
29					 * 0x2 => AIX code supporting ROS emul*/
30	char		pad3[2];
31	uint16_t	custn_len;	/* sec for customization, normal */
32	uint16_t	custs_len;	/* sec for cust. service */
33	uint32_t	custn_start;	/* start sec for cust. normal */
34	uint32_t	custs_start;	/* start sec for cust. service */
35	char		pad4[24];
36	uint32_t	servcode_len;	/* bootcode_len for service */
37	uint32_t	servcode_off;	/* bootcode_off for service */
38	uint32_t	servpart_start;	/* bootpart_start for service */
39	uint32_t	servprg_start;	/* bootprg_start for service */
40	uint32_t	servpart_len;	/* bootpart_len for service */
41	uint32_t	serv_load_addr;	/* boot_load_addr for service */
42	char		serv_frag;	/* boot_frag for service */
43	char		serv_emul;	/* boot_emul for service */
44	char		pad5[2];
45	uint32_t	pv_id[4];	/* unique_id for pv_id */
46	char		pad6[512 - 128 - 16]; /* 16 for pvid */
47} rs6000_boot_record_t;
48
49typedef struct rs6000_config_record {
50	uint32_t	conf_rec;	/* marks the record as valid */
51	int32_t		formatted_cap;	/* sectors in disk */
52	uint16_t	pad1;
53	char		interleave;
54	char		sector_size;	/* bytes per sector * 256 */
55	uint16_t	last_cyl;	/* number of cyl-1. total is last_cyl
56					 * +2 where the last cyl is the CE */
57	char		last_head;	/* nrof heads -1 */
58	char		last_sec;	/* nrof sectors -1 */
59	char		write_precomp;
60	char		device_status;	/* POST crap */
61	uint16_t	ce_cyl;		/* diag cylinder */
62	uint16_t	eol;		/* defects before disk is done. */
63	uint16_t	seek_profile[15]; /* ESDI crap */
64	char		mfg_id[3];	/* 0,1 size, 2 == disk maker */
65	char		pad2;
66	uint32_t	pv_id[4];	/* unique_id for pv_id */
67	char		pad3[436];
68} rs6000_config_record_t;
69
70#endif /* __RS6000_BOOTREC_H__ */
71