Init

sys/sbusdev/bpp_var.h

@@ -0,0 +1,88 @@
+/*	@(#)bpp_var.h	1.1	94/10/31	SMI		*/
+/*
+ * 	Copyright (c) 1990 by Sun Microsystems, Inc.
+ *
+ *	Local variables header file for the bidirectional parallel port
+ *	driver (bpp) for the Zebra SBus card.
+ *
+ */
+#ifndef	_sbusdev_bpp_var_h
+#define	_sbusdev_bpp_var_h
+
+
+/*	#defines (not struct elements) below */
+
+/* Other external ioctls are defined in bpp_io.h	*/
+	/* FOR TEST - request fakeout simulate partial data transfer	*/
+#define	BPPIOC_SETBC		_IOW(b, 7, u_int)
+	/* FOR TEST - request value of DMA_BCNT at end of last data transfer */
+#define	BPPIOC_GETBC		_IOR(b, 8, u_int)
+	/* FOR TEST - get contents of device registers */
+#define	BPPIOC_GETREGS		_IOR(b, 9, struct bpp_regs)
+	/* FOR TEST - set special error code to simulate errors */
+#define	BPPIOC_SETERRCODE	_IOW(b, 10, int)
+	/* FOR TEST - get pointer to (fakely) "transferred" data */
+#define	BPPIOC_GETFAKEBUF	_IOW(b, 11, u_char *)
+	/* FOR TEST - test nested timeout  calls */
+#define	BPPIOC_TESTTIMEOUT	_IO(b, 12)
+
+#ifdef	notdef
+/*  This define will use the hardware simulations in software */
+#define	NO_BPP_HW
+#endif	notdef
+
+
+#define MAX_NBPP	10	/* Maximum units allowed to identify */ 
+#define	BPP_PROM_NAME	"SUNW,bpp"	/* name string in FCode prom */
+
+
+/*	Structure definitions and locals #defines below */
+
+#define FAKE_BUF_SIZE (1024 * 128)	/* size of each DVMA transfer */
+
+struct bpp_unit				/* Unit structure - one per unit */
+{
+	u_char		unit_open;		/* 1 means open.	*/
+	u_char		open_inhibit;		/* 1 means inhibit.	*/
+	u_char		versatec_allowed;	/* 1 means allow	*/
+						/* versatec handshakes	*/
+	int		openflags;		/* read-write flags	*/
+						/* this unit opened with*/
+	u_char		timeouts;		/* encoded pending timeouts */
+
+	u_int		interrupt_pri;		/* Highest int pri (spl)*/
+						/* for this unit only.  */
+	int		saved_spl;		/* Saved spl while in   */
+						/* critical sections    */
+						/* for this unit only.  */
+						/* At all other times   */
+						/* the value is (-1).   */
+	long		transfer_remainder;	/* number of bytes which */
+						/* were not transferred */
+						/* since they were across */
+						/* the max DVMA boundary. */
+						/* value is (0) when transfer */
+						/* is within the boundary */
+	struct dev_info 	*devinfo_p;	/* Node for this unit.  */
+	struct bpp_regs 	*bpp_regs_p;	/* Device control regs. */
+	struct bpp_transfer_parms transfer_parms;
+						/* handshake and timing */
+	struct bpp_pins		pins;		/* control pins 	*/
+	struct bpp_error_status	error_stat;	/* snapshotted error cond */
+	struct buf		buf;		/* For physio() calls.  */
+};
+
+/* defines for the timeouts field */
+#define	NO_TIMEOUTS		0x00		/* No timeouts pending	*/
+#define	TRANSFER_TIMEOUT	0x01		/* DVMA transfer */
+#define	FAKEOUT_TIMEOUT		0x10		/* Hardware simulation	*/
+#define	TEST1_TIMEOUT		0x20		/* Test timeout #1	*/
+#define	TEST2_TIMEOUT		0x40		/* Test timeout #2	*/
+
+
+
+/*	Function declarations below	*/
+extern int	nulldev();
+extern int	seltrue();
+
+#endif	_sbusdev_bpp_var_h