20060303

1 files changed, 212 insertions, 0 deletions

diff --git a/os/boot/pc/dat.h b/os/boot/pc/dat.h
new file mode 100644
index 00000000..f6d02d56
--- /dev/null
+++ b/os/boot/pc/dat.h
@@ -0,0 +1,212 @@
+typedef struct List {
+	void	*next;
+} List;
+
+typedef struct Alarm Alarm;
+typedef struct Alarm {
+	List;
+	int	busy;
+	long	dt;
+	void	(*f)(Alarm*);
+	void	*arg;
+} Alarm;
+
+typedef struct Apminfo {
+	int haveinfo;
+	int ax;
+	int cx;
+	int dx;
+	int di;
+	int ebx;
+	int esi;
+} Apminfo;
+
+typedef struct Block Block;
+struct Block {
+	Block*	next;
+	uchar*	rp;			/* first unconsumed byte */
+	uchar*	wp;			/* first empty byte */
+	uchar*	lim;			/* 1 past the end of the buffer */
+	uchar*	base;			/* start of the buffer */
+	ulong	flag;
+};
+#define BLEN(s)	((s)->wp - (s)->rp)
+
+typedef struct IOQ IOQ;
+typedef struct IOQ {
+	uchar	buf[4096];
+	uchar	*in;
+	uchar	*out;
+	int	state;
+	int	(*getc)(IOQ*);
+	int	(*putc)(IOQ*, int);
+	void	*ptr;
+};
+
+enum {
+	Eaddrlen	= 6,
+	/* next two exclude 4-byte ether CRC */
+	ETHERMINTU	= 60,		/* minimum transmit size */
+	ETHERMAXTU	= 1514,		/* maximum transmit size */
+	ETHERHDRSIZE	= 14,		/* size of an ethernet header */
+
+	MaxEther	= 6,
+};
+
+typedef struct {
+	uchar	d[Eaddrlen];
+	uchar	s[Eaddrlen];
+	uchar	type[2];
+	uchar	data[1500];
+	uchar	crc[4];
+} Etherpkt;
+
+extern uchar broadcast[Eaddrlen];
+
+typedef struct Ureg Ureg;
+
+typedef struct Segdesc {
+	ulong	d0;
+	ulong	d1;
+} Segdesc;
+
+typedef struct Mach {
+	ulong	ticks;			/* of the clock since boot time */
+	void	*alarm;			/* alarms bound to this clock */
+} Mach;
+
+extern Mach *m;
+
+#define I_MAGIC		((((4*11)+0)*11)+7)
+
+typedef struct Exec Exec;
+struct	Exec
+{
+	uchar	magic[4];		/* magic number */
+	uchar	text[4];	 	/* size of text segment */
+	uchar	data[4];	 	/* size of initialized data */
+	uchar	bss[4];	  		/* size of uninitialized data */
+	uchar	syms[4];	 	/* size of symbol table */
+	uchar	entry[4];	 	/* entry point */
+	uchar	spsz[4];		/* size of sp/pc offset table */
+	uchar	pcsz[4];		/* size of pc/line number table */
+};
+
+/*
+ *  a parsed .ini line
+ */
+#define ISAOPTLEN	32
+#define NISAOPT		8
+
+typedef struct  ISAConf {
+	char	type[NAMELEN];
+	ulong	port;
+	ulong	irq;
+	ulong	mem;
+	ulong	size;
+	uchar	ea[6];
+
+	int	nopt;
+	char	opt[NISAOPT][ISAOPTLEN];
+} ISAConf;
+
+typedef struct Pcidev Pcidev;
+typedef struct PCMmap PCMmap;
+
+#define BOOTLINE	((char*)CONFADDR)
+
+enum {
+	MB =		(1024*1024),
+};
+#define ROUND(s, sz)	(((s)+((sz)-1))&~((sz)-1))
+
+
+typedef struct Type Type;
+typedef struct Medium Medium;
+typedef struct Boot Boot;
+
+enum {					/* type */
+	Tnil		= 0x00,
+
+	Tfloppy		= 0x01,
+	Tsd		= 0x02,
+	Tether		= 0x03,
+	Tcd		= 0x04,
+
+	Tany		= -1,
+};
+
+enum {					/* name and flag */
+	Fnone		= 0x00,
+
+	Nfs		= 0x00,
+	Ffs		= (1<<Nfs),
+	Nboot		= 0x01,
+	Fboot		= (1<<Nboot),
+	Nbootp		= 0x02,
+	Fbootp		= (1<<Nbootp),
+	NName		= 3,
+
+	Fany		= Fbootp|Fboot|Ffs,
+
+	Fini		= 0x10,
+	Fprobe		= 0x80,
+};
+
+typedef struct Type {
+	int	type;
+	int	flag;
+	int	(*init)(void);
+	void	(*initdev)(int, char*);
+	void*	(*getfspart)(int, char*, int);	/* actually returns Dos* */
+	void	(*addconf)(int);
+	int	(*boot)(int, char*, Boot*);
+	void	(*printdevs)(int);
+	char**	parts;
+	char**	inis;
+	int	mask;
+	Medium*	media;
+} Type;
+
+extern void (*etherdetach)(void);
+extern void (*floppydetach)(void);
+extern void (*sddetach)(void);
+
+typedef struct Lock {	/* for ilock, iunlock */
+	int locked;
+	int spl;
+} Lock;
+
+enum {	/* returned by bootpass */
+	MORE, ENOUGH, FAIL
+};
+enum {
+	INITKERNEL,
+	READEXEC,
+	READ9TEXT,
+	READ9DATA,
+	READGZIP,
+	READEHDR,
+	READPHDR,
+	READEPAD,
+	READEDATA,
+	TRYBOOT,
+	INIT9LOAD,
+	READ9LOAD,
+	FAILED
+};
+
+struct Boot {
+	int state;
+
+	Exec exec;
+	char *bp;	/* base ptr */
+	char *wp;	/* write ptr */
+	char *ep;	/* end ptr */
+};
+
+extern int	debug;
+extern Apminfo	apm;
+extern char	*defaultpartition;
+extern int	iniread;
+extern int	pxe;