20060303

1 files changed, 127 insertions, 0 deletions

diff --git a/os/boot/pc/sd.h b/os/boot/pc/sd.h
new file mode 100644
index 00000000..a19ac689
--- /dev/null
+++ b/os/boot/pc/sd.h
@@ -0,0 +1,127 @@
+/*
+ * Storage Device.
+ */
+typedef struct SDev SDev;
+typedef struct SDifc SDifc;
+typedef struct SDpart SDpart;
+typedef struct SDreq SDreq;
+typedef struct SDunit SDunit;
+
+typedef struct SDpart {
+	ulong	start;
+	ulong	end;
+	char	name[NAMELEN];
+	char	user[NAMELEN];
+	ulong	perm;
+	int	valid;
+	void *crud;
+} SDpart;
+
+typedef struct SDunit {
+	SDev*	dev;
+	int	subno;
+	uchar	inquiry[256];		/* format follows SCSI spec */
+	char	name[NAMELEN];
+//	Rendez	rendez;
+
+//	QLock	ctl;
+	ulong	sectors;
+	ulong	secsize;
+	SDpart*	part;
+	int	npart;			/* of valid partitions */
+	int	changed;
+
+//	QLock	raw;
+	int	state;
+	ulong	pid;
+	SDreq*	req;
+} SDunit;
+
+typedef struct SDev {
+	SDifc*	ifc;			/* pnp/legacy */
+	void	*ctlr;
+	int	idno;
+	int	index;			/* into unit space */
+	int	nunit;
+	SDev*	next;
+
+//	QLock;				/* enable/disable */
+	int	enabled;
+} SDev;
+
+typedef struct SDifc {
+	char*	name;
+
+	SDev*	(*pnp)(void);
+	SDev*	(*legacy)(int, int);
+	SDev*	(*id)(SDev*);
+	int	(*enable)(SDev*);
+	int	(*disable)(SDev*);
+
+	int	(*verify)(SDunit*);
+	int	(*online)(SDunit*);
+	int	(*rio)(SDreq*);
+	int	(*rctl)(SDunit*, char*, int);
+	int	(*wctl)(SDunit*, void*);
+
+	long	(*bio)(SDunit*, int, int, void*, long, long);
+} SDifc;
+
+typedef struct SDreq {
+	SDunit*	unit;
+	int	lun;
+	int	write;
+	uchar	cmd[16];
+	int	clen;
+	void*	data;
+	int	dlen;
+
+	int	flags;
+
+	int	status;
+	long	rlen;
+	uchar	sense[256];
+} SDreq;
+
+enum {
+	SDnosense	= 0x00000001,
+	SDvalidsense	= 0x00010000,
+};
+
+enum {
+	SDmalloc	= -4,
+	SDeio		= -3,
+	SDtimeout	= -2,
+	SDnostatus	= -1,
+
+	SDok		= 0,
+
+	SDcheck		= 0x02,		/* check condition */
+	SDbusy		= 0x08,		/* busy */
+
+	SDmaxio		= 2048*1024,
+	SDnpart		= 16,
+};
+
+/* sdscsi.c */
+extern int scsiverify(SDunit*);
+extern int scsionline(SDunit*);
+extern long scsibio(SDunit*, int, int, void*, long, long);
+extern SDev* scsiid(SDev*, SDifc*);
+
+#define IrqATA0 14
+#define IrqATA1 15
+#define qlock(i)	while(0)
+#define qunlock(i)	while(0)
+
+#define putstrn consputs
+
+void sleep(void*, int(*)(void*), void*);
+void tsleep(void*, int(*)(void*), void*, int);
+#define wakeup(x) while(0)
+extern long sdbio(SDunit *unit, SDpart *pp, void *a, long len, vlong off);
+void	partition(SDunit*);
+void	addpartconf(SDunit*);
+SDpart* sdfindpart(SDunit*, char*);
+void	sdaddpart(SDunit*, char*, ulong, ulong);
+void*	sdmalloc(void*, ulong);