bussified and bus-split bustec scsi ha driver.

original port done by chris@ in '98 and pounded into
-current by me, plus support for wide mode.
tested on pci in both modes by me, on eisa (w/
half success, thus not enabled yet) by jason@.
niklas@, jason@, millert@ ok.

1 files changed, 135 insertions, 0 deletions

diff --git a/sys/dev/ic/bhavar.h b/sys/dev/ic/bhavar.h
new file mode 100644
index 00000000000..3d5b763de78
--- /dev/null
+++ b/sys/dev/ic/bhavar.h
@@ -0,0 +1,135 @@
+/*	$OpenBSD: bhavar.h,v 1.1 2002/01/24 22:38:03 mickey Exp $	*/
+/*	$NetBSD: bhavar.h,v 1.12 1998/11/19 21:53:00 thorpej Exp $	*/
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
+ * Simulation Facility, NASA Ames Research Center.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/queue.h>
+
+/*
+ * Mail box defs  etc.
+ * these could be bigger but we need the bha_softc to fit on a single page..
+ */
+#define BHA_MBX_SIZE	32	/* mail box size  (MAX 255 MBxs) */
+				/* don't need that many really */
+#define BHA_CCB_MAX	32	/* store up to 32 CCBs at one time */
+#define	CCB_HASH_SIZE	32	/* hash table size for phystokv */
+#define	CCB_HASH_SHIFT	9
+#define CCB_HASH(x)	((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))
+
+#define bha_nextmbx(wmb, mbx, mbio) \
+	if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1])	\
+		(wmb) = &(mbx)->mbio[0];		\
+	else						\
+		(wmb)++;
+
+struct bha_mbx {
+	struct bha_mbx_out mbo[BHA_MBX_SIZE];
+	struct bha_mbx_in mbi[BHA_MBX_SIZE];
+	struct bha_mbx_out *cmbo;	/* Collection Mail Box out */
+	struct bha_mbx_out *tmbo;	/* Target Mail Box out */
+	struct bha_mbx_in *tmbi;	/* Target Mail Box in */
+};
+
+struct bha_control {
+	struct bha_mbx bc_mbx;		/* all our mailboxes */
+	struct bha_ccb bc_ccbs[BHA_CCB_MAX]; /* all our control blocks */
+};
+
+struct bha_softc {
+	struct device sc_dev;
+
+	bus_space_tag_t sc_iot;
+	bus_space_handle_t sc_ioh;
+	bus_dma_tag_t sc_dmat;
+	bus_dmamap_t sc_dmamap_control;	/* maps the control structures */
+	int sc_dmaflags;		/* bus-specific dma map flags */
+	void *sc_ih;
+
+	struct bha_control *sc_control;	/* control structures */
+	int sc_iswide;
+
+#define	wmbx	(&sc->sc_control->bc_mbx)
+
+	struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE];
+	TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb;
+	int sc_mbofull;
+	struct scsi_link sc_link;	/* prototype for devs */
+	struct scsi_adapter sc_adapter;
+
+	LIST_HEAD(, scsi_xfer) sc_queue;
+	struct scsi_xfer *sc_queuelast;
+
+	char sc_model[7],
+	     sc_firmware[6];
+};
+
+/*
+ * Offset of a Mail Box In from the beginning of the control DMA mapping.
+ */
+#define	BHA_MBI_OFF(m)	(offsetof(struct bha_control, bc_mbx.mbi[0]) +	\
+			    (((u_long)(m)) - ((u_long)&wmbx->mbi[0])))
+
+/*
+ * Offset of a Mail Box Out from the beginning of the control DMA mapping.
+ */
+#define	BHA_MBO_OFF(m)	(offsetof(struct bha_control, bc_mbx.mbo[0]) +	\
+			    (((u_long)(m)) - ((u_long)&wmbx->mbo[0])))
+
+/*
+ * Offset of a CCB from the beginning of the control DMA mapping.
+ */
+#define	BHA_CCB_OFF(c)	(offsetof(struct bha_control, bc_ccbs[0]) +	\
+		    (((u_long)(c)) - ((u_long)&sc->sc_control->bc_ccbs[0])))
+
+struct bha_probe_data {
+	int sc_irq, sc_drq;
+	int sc_scsi_dev;		/* adapters scsi id */
+	int sc_iswide;			/* adapter is wide */
+};
+
+/*#define	ISWIDE(sc)	(sc->sc_link.max_target >= 8)*/
+
+int	bha_cmd __P((bus_space_tag_t, bus_space_handle_t, struct bha_softc *,
+	    int, u_char *, int, u_char *));
+int	bha_find __P((bus_space_tag_t, bus_space_handle_t,
+	    struct bha_probe_data *));
+void	bha_attach __P((struct bha_softc *, struct bha_probe_data *));
+int	bha_intr __P((void *));
+
+int	bha_disable_isacompat __P((struct bha_softc *));
+void	bha_inquire_setup_information __P((struct bha_softc *));