initial import of NetBSD tree

1 files changed, 135 insertions, 0 deletions

diff --git a/sys/dev/ic/ncr5380reg.h b/sys/dev/ic/ncr5380reg.h
new file mode 100644
index 00000000000..600a26f9b3b
--- /dev/null
+++ b/sys/dev/ic/ncr5380reg.h
@@ -0,0 +1,135 @@
+/*	$NetBSD: ncr5380reg.h,v 1.1 1995/07/08 21:30:43 pk Exp $	*/
+
+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+/*
+ * HISTORY (mach3)
+ * Revision 2.3  91/08/24  12:25:10  af
+ * 	Moved padding of regmap in impl file.
+ * 	[91/08/02  04:22:39  af]
+ * 
+ * Revision 2.2  91/06/19  16:28:35  rvb
+ * 	From the NCR data sheets
+ * 	"NCR 5380 Family, SCSI Protocol Controller Data Manual"
+ * 	NCR Microelectronics Division, Colorado Spring, 6/98 T01891L
+ * 	[91/04/21            af]
+ * 
+ */
+
+/*
+ *	File: scsi_5380.h
+ * 	Author: Alessandro Forin, Carnegie Mellon University
+ *	Date:	5/91
+ *
+ *	Defines for the NCR 5380 (SCSI chip), aka Am5380
+ */
+
+/*
+ * Register map
+ */
+typedef struct {
+	volatile unsigned char	sci_data;	/* r:  Current data */
+#define			sci_odata sci_data	/* w:  Out data */
+	volatile unsigned char	sci_icmd;	/* rw: Initiator command */
+	volatile unsigned char	sci_mode;	/* rw: Mode */
+	volatile unsigned char	sci_tcmd;	/* rw: Target command */
+	volatile unsigned char	sci_bus_csr;	/* r:  Bus Status */
+#define			sci_sel_enb sci_bus_csr	/* w:  Select enable */
+	volatile unsigned char	sci_csr;	/* r:  Status */
+#define			sci_dma_send sci_csr	/* w:  Start dma send data */
+	volatile unsigned char	sci_idata;	/* r:  Input data */
+#define			sci_trecv sci_idata	/* w:  Start dma receive, target */
+	volatile unsigned char	sci_iack;	/* r:  Interrupt Acknowledge  */
+#define			sci_irecv sci_iack	/* w:  Start dma receive, initiator */
+} sci_regmap_t;
+
+
+/*
+ * Initiator command register
+ */
+#define SCI_ICMD_DATA		0x01		/* rw: Assert data bus   */
+#define SCI_ICMD_ATN		0x02		/* rw: Assert ATN signal */
+#define SCI_ICMD_SEL		0x04		/* rw: Assert SEL signal */
+#define SCI_ICMD_BSY		0x08		/* rw: Assert BSY signal */
+#define SCI_ICMD_ACK		0x10		/* rw: Assert ACK signal */
+#define SCI_ICMD_LST		0x20		/* r:  Lost arbitration */
+#define SCI_ICMD_DIFF	SCI_ICMD_LST		/* w:  Differential cable */
+#define SCI_ICMD_AIP		0x40		/* r:  Arbitration in progress */
+#define SCI_ICMD_TEST	SCI_ICMD_AIP		/* w:  Test mode */
+#define SCI_ICMD_RST		0x80		/* rw: Assert RST signal */
+
+
+/*
+ * Mode register
+ */
+#define SCI_MODE_ARB		0x01		/* rw: Start arbitration */
+#define SCI_MODE_DMA		0x02		/* rw: Enable DMA xfers */
+#define SCI_MODE_MONBSY		0x04		/* rw: Monitor BSY signal */
+#define SCI_MODE_DMA_IE		0x08		/* rw: Enable DMA complete interrupt */
+#define SCI_MODE_PERR_IE	0x10		/* rw: Interrupt on parity errors */
+#define SCI_MODE_PAR_CHK	0x20		/* rw: Check parity */
+#define SCI_MODE_TARGET		0x40		/* rw: Target mode (Initiator if 0) */
+#define SCI_MODE_BLOCKDMA	0x80		/* rw: Block-mode DMA handshake (MBZ) */
+
+
+/*
+ * Target command register
+ */
+#define SCI_TCMD_IO		0x01		/* rw: Assert I/O signal */
+#define SCI_TCMD_CD		0x02		/* rw: Assert C/D signal */
+#define SCI_TCMD_MSG		0x04		/* rw: Assert MSG signal */
+#define SCI_TCMD_PHASE_MASK	0x07		/* r:  Mask for current bus phase */
+#define SCI_TCMD_REQ		0x08		/* rw: Assert REQ signal */
+#define	SCI_TCMD_LAST_SENT	0x80		/* ro: Last byte was xferred
+						 *     (not on 5380/1) */
+
+#define	SCI_PHASE(x)		((x)&0x7)
+
+/*
+ * Current (SCSI) Bus status
+ */
+#define SCI_BUS_DBP		0x01		/* r:  Data Bus parity */
+#define SCI_BUS_SEL		0x02		/* r:  SEL signal */
+#define SCI_BUS_IO		0x04		/* r:  I/O signal */
+#define SCI_BUS_CD		0x08		/* r:  C/D signal */
+#define SCI_BUS_MSG		0x10		/* r:  MSG signal */
+#define SCI_BUS_REQ		0x20		/* r:  REQ signal */
+#define SCI_BUS_BSY		0x40		/* r:  BSY signal */
+#define SCI_BUS_RST		0x80		/* r:  RST signal */
+
+#define	SCI_CUR_PHASE(x)	SCI_PHASE((x)>>2)
+
+/*
+ * Bus and Status register
+ */
+#define SCI_CSR_ACK		0x01		/* r:  ACK signal */
+#define SCI_CSR_ATN		0x02		/* r:  ATN signal */
+#define SCI_CSR_DISC		0x04		/* r:  Disconnected (BSY==0) */
+#define SCI_CSR_PHASE_MATCH	0x08		/* r:  Bus and SCI_TCMD match */
+#define SCI_CSR_INT		0x10		/* r:  Interrupt request */
+#define SCI_CSR_PERR		0x20		/* r:  Parity error */
+#define SCI_CSR_DREQ		0x40		/* r:  DMA request */
+#define SCI_CSR_DONE		0x80		/* r:  DMA count is zero */