Add adw device driver, from NetBSD.

1 files changed, 111 insertions, 0 deletions

diff --git a/sys/dev/ic/adw.h b/sys/dev/ic/adw.h
new file mode 100644
index 00000000000..f70211f7d4e
--- /dev/null
+++ b/sys/dev/ic/adw.h
@@ -0,0 +1,111 @@
+/*	$OpenBSD: adw.h,v 1.1 1998/11/17 06:14:58 downsj Exp $	*/
+/*      $NetBSD: adw.h,v 1.1 1998/09/26 16:10:41 dante Exp $        */
+
+/*
+ * Generic driver definitions and exported functions for the Advanced
+ * Systems Inc. SCSI controllers
+ * 
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Author: Baldassare Dante Profeta <dante@mclink.it>
+ *
+ * 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.
+ */
+
+#ifndef _ADVANSYS_WIDE_H_
+#define _ADVANSYS_WIDE_H_
+
+/******************************************************************************/
+
+typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *);
+typedef int (* ADW_SBRESET_CALLBACK) (ADW_SOFTC *);
+
+/* per request scatter-gather element limit  */
+#define ADW_MAX_SG_LIST		64
+
+/* 
+ * Scatter-Gather Definitions per request.
+ */
+
+#define NO_OF_SG_PER_BLOCK	15
+
+/* Number of SG blocks needed. */
+#define ADW_NUM_SG_BLOCK \
+	((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)
+
+
+struct adw_ccb
+{
+	ADW_SG_BLOCK		sg_block[ADW_NUM_SG_BLOCK];
+	ADW_SCSI_REQ_Q		scsiq;
+
+	struct scsi_sense_data scsi_sense;
+
+	TAILQ_ENTRY(adw_ccb)	chain;
+	struct scsi_xfer	*xs;	/* the scsi_xfer for this cmd */
+	int			flags;	/* see below */
+
+	int			timeout;
+	/*
+	 * This DMA map maps the buffer involved in the transfer.
+	 */
+	bus_dmamap_t		dmamap_xfer;
+};
+
+typedef struct adw_ccb ADW_CCB;
+
+/* flags for ADW_CCB */
+#define CCB_ALLOC       0x01
+#define CCB_ABORT       0x02
+#define	CCB_WATCHDOG	0x10
+
+
+#define ADW_MAX_CCB	16
+
+struct adw_control
+{
+	ADW_CCB	ccbs[ADW_MAX_CCB];	/* all our control blocks */
+};
+
+/*
+ * Offset of a CCB from the beginning of the control DMA mapping.
+ */
+#define	ADW_CCB_OFF(c)	(offsetof(struct adw_control, ccbs[0]) +	\
+		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
+
+/******************************************************************************/
+
+int adw_init __P((ADW_SOFTC *sc));
+void adw_attach __P((ADW_SOFTC *sc));
+int adw_intr __P((void *arg));
+
+/******************************************************************************/
+
+#endif /* _ADVANSYS_ADW_H_ */