Split the aic6360 driver to add support for SCSI pcmcia cards.

1 files changed, 217 insertions, 0 deletions

diff --git a/sys/dev/ic/aic6360var.h b/sys/dev/ic/aic6360var.h
new file mode 100644
index 00000000000..50b5f862ad1
--- /dev/null
+++ b/sys/dev/ic/aic6360var.h
@@ -0,0 +1,217 @@
+/*	$OpenBSD: aic6360var.h,v 1.1 1998/09/11 07:24:57 fgsch Exp $	*/
+/*	$NetBSD: aic6360.c,v 1.52 1996/12/10 21:27:51 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995, 1996 Charles Hannum.  All rights reserved.
+ *
+ * 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 Charles M. Hannum.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Copyright (c) 1994 Jarle Greipsland
+ * All rights reserved.
+ *
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/*
+ * Acknowledgements: Many of the algorithms used in this driver are
+ * inspired by the work of Julian Elischer (julian@tfs.com) and
+ * Charles Hannum (mycroft@duality.gnu.ai.mit.edu).  Thanks a million!
+ */
+
+#define AIC_NPORTS	0x20	/* I/O port space used */
+
+typedef u_long physaddr;
+typedef u_long physlen;
+
+struct aic_dma_seg {
+	physaddr seg_addr;
+	physlen seg_len;
+};
+
+#define AIC_NSEG	16
+
+/*
+ * ACB. Holds additional information for each SCSI command Comments: We
+ * need a separate scsi command block because we may need to overwrite it
+ * with a request sense command.  Basicly, we refrain from fiddling with
+ * the scsi_xfer struct (except do the expected updating of return values).
+ * We'll generally update: xs->{flags,resid,error,sense,status} and
+ * occasionally xs->retries.
+ */
+struct aic_acb {
+	struct scsi_generic scsi_cmd;
+	int scsi_cmd_length;
+	u_char *data_addr;		/* Saved data pointer */
+	int data_length;		/* Residue */
+
+	u_char target_stat;		/* SCSI status byte */
+
+#ifdef notdef
+	struct aic_dma_seg dma[AIC_NSEG]; /* Physical addresses+len */
+#endif
+
+	TAILQ_ENTRY(aic_acb) chain;
+	struct scsi_xfer *xs;	/* SCSI xfer ctrl block from above */
+	int flags;
+#define ACB_ALLOC	0x01
+#define	ACB_NEXUS	0x02
+#define ACB_SENSE	0x04
+#define	ACB_ABORT	0x40
+#define	ACB_RESET	0x80
+	int timeout;
+};
+
+/*
+ * Some info about each (possible) target on the SCSI bus.  This should
+ * probably have been a "per target+lunit" structure, but we'll leave it at
+ * this for now.
+ */
+struct aic_tinfo {
+	int	cmds;		/* #commands processed */
+	int	dconns;		/* #disconnects */
+	int	touts;		/* #timeouts */
+	int	perrs;		/* #parity errors */
+	int	senses;		/* #request sense commands sent */
+	ushort	lubusy;		/* What local units/subr. are busy? */
+	u_char  flags;
+#define DO_SYNC		0x01	/* (Re)Negotiate synchronous options */
+#define	DO_WIDE		0x02	/* (Re)Negotiate wide options */
+	u_char  period;		/* Period suggestion */
+	u_char  offset;		/* Offset suggestion */
+	u_char	width;		/* Width suggestion */
+} tinfo_t;
+
+struct aic_softc {
+	struct device sc_dev;
+	struct isadev sc_id;
+	void *sc_ih;
+
+	bus_space_tag_t sc_iot;
+	bus_space_handle_t sc_ioh;
+	int sc_irq, sc_drq;
+
+	struct scsi_link sc_link;	/* prototype for subdevs */
+
+	TAILQ_HEAD(, aic_acb) free_list, ready_list, nexus_list;
+	struct aic_acb *sc_nexus;	/* current command */
+	struct aic_acb sc_acb[8];
+	struct aic_tinfo sc_tinfo[8];
+
+	/* Data about the current nexus (updated for every cmd switch) */
+	u_char	*sc_dp;		/* Current data pointer */
+	size_t	sc_dleft;	/* Data bytes left to transfer */
+	u_char	*sc_cp;		/* Current command pointer */
+	size_t	sc_cleft;	/* Command bytes left to transfer */
+
+	/* Adapter state */
+	u_char	 sc_phase;	/* Current bus phase */
+	u_char	 sc_prevphase;	/* Previous bus phase */
+	u_char	 sc_state;	/* State applicable to the adapter */
+#define	AIC_INIT	0
+#define AIC_IDLE	1
+#define AIC_SELECTING	2	/* SCSI command is arbiting  */
+#define AIC_RESELECTED	3	/* Has been reselected */
+#define AIC_CONNECTED	4	/* Actively using the SCSI bus */
+#define	AIC_DISCONNECT	5	/* MSG_DISCONNECT received */
+#define	AIC_CMDCOMPLETE	6	/* MSG_CMDCOMPLETE received */
+#define AIC_CLEANING	7
+	u_char	 sc_flags;
+#define AIC_DROP_MSGIN	0x01	/* Discard all msgs (parity err detected) */
+#define	AIC_ABORTING	0x02	/* Bailing out */
+#define AIC_DOINGDMA	0x04	/* The FIFO data path is active! */
+	u_char	sc_selid;	/* Reselection ID */
+
+	/* Message stuff */
+	u_char	sc_msgpriq;	/* Messages we want to send */
+	u_char	sc_msgoutq;	/* Messages sent during last MESSAGE OUT */
+	u_char	sc_lastmsg;	/* Message last transmitted */
+	u_char	sc_currmsg;	/* Message currently ready to transmit */
+#define SEND_DEV_RESET		0x01
+#define SEND_PARITY_ERROR	0x02
+#define SEND_INIT_DET_ERR	0x04
+#define SEND_REJECT		0x08
+#define SEND_IDENTIFY  		0x10
+#define SEND_ABORT		0x20
+#define SEND_SDTR		0x40
+#define	SEND_WDTR		0x80
+#define AIC_MAX_MSG_LEN 8
+	u_char  sc_omess[AIC_MAX_MSG_LEN];
+	u_char	*sc_omp;		/* Outgoing message pointer */
+	u_char	sc_imess[AIC_MAX_MSG_LEN];
+	u_char	*sc_imp;		/* Incoming message pointer */
+
+	/* Hardware stuff */
+	int	sc_initiator;		/* Our scsi id */
+	int	sc_freq;		/* Clock frequency in MHz */
+	int	sc_minsync;		/* Minimum sync period / 4 */
+	int	sc_maxsync;		/* Maximum sync period / 4 */
+};
+
+#if AIC_DEBUG
+#define AIC_SHOWACBS	0x01
+#define AIC_SHOWINTS	0x02
+#define AIC_SHOWCMDS	0x04
+#define AIC_SHOWMISC	0x08
+#define AIC_SHOWTRACE	0x10
+#define AIC_SHOWSTART	0x20
+#define AIC_DOBREAK	0x40
+#define	AIC_PRINT(b, s)	do {if ((aic_debug & (b)) != 0) printf s;} while (0)
+#define	AIC_BREAK() \
+	do { if ((aic_debug & AIC_DOBREAK) != 0) Debugger(); } while (0)
+#define	AIC_ASSERT(x) \
+	do { \
+		if (!x) { \
+			printf("%s at line %d: assertion failed\n", \
+			    sc->sc_dev.dv_xname, __LINE__); \
+			Debugger(); \
+		} \
+	} while (0)
+#else
+#define	AIC_PRINT(b, s)
+#define	AIC_BREAK()
+#define	AIC_ASSERT(x)
+#endif
+
+#define AIC_ACBS(s)	AIC_PRINT(AIC_SHOWACBS, s)
+#define AIC_INTS(s)	AIC_PRINT(AIC_SHOWINTS, s)
+#define AIC_CMDS(s)	AIC_PRINT(AIC_SHOWCMDS, s)
+#define AIC_MISC(s)	AIC_PRINT(AIC_SHOWMISC, s)
+#define AIC_TRACE(s)	AIC_PRINT(AIC_SHOWTRACE, s)
+#define AIC_START(s)	AIC_PRINT(AIC_SHOWSTART, s)
+
+void	aicattach	__P((struct aic_softc *));
+int	aicintr		__P((void *));
+int 	aic_find	__P((bus_space_tag_t, bus_space_handle_t));