1 files changed, 252 insertions, 0 deletions
diff --git a/sys/dev/eisa/eisa.c b/sys/dev/eisa/eisa.c
new file mode 100644
index 00000000000..38a72a42d9b
--- /dev/null
+++ b/sys/dev/eisa/eisa.c
@@ -0,0 +1,252 @@
+/*	$OpenBSD: eisa.c,v 1.1 1996/04/18 23:47:10 niklas Exp $	*/
+/*	$NetBSD: eisa.c,v 1.7 1996/03/14 04:02:58 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1995, 1996 Christopher G. Demetriou
+ * 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 Christopher G. Demetriou
+ *      for the NetBSD Project.
+ * 4. 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.
+ */
+
+/*
+ * EISA Bus device
+ *
+ * Makes sure an EISA bus is present, and finds and attaches devices
+ * living on it.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+
+#include <dev/eisa/eisareg.h>
+#include <dev/eisa/eisavar.h>
+#include <dev/eisa/eisadevs.h>
+
+int	eisamatch __P((struct device *, void *, void *));
+void	eisaattach __P((struct device *, struct device *, void *));
+
+struct cfdriver eisacd = {
+        NULL, "eisa", eisamatch, eisaattach, DV_DULL, sizeof(struct device)
+};
+
+int	eisasubmatch __P((struct device *, void *, void *));
+int	eisaprint __P((void *, char *));
+void	eisa_devinfo __P((const char *, char *));
+
+int
+eisamatch(parent, match, aux)
+        struct device *parent;
+        void *match, *aux;
+{
+	struct cfdata *cf = match;
+	struct eisabus_attach_args *eba = aux;
+
+	if (strcmp(eba->eba_busname, cf->cf_driver->cd_name))
+		return (0);
+
+	/* XXX check other indicators */
+
+        return (1);
+}
+
+int
+eisaprint(aux, pnp)
+	void *aux;
+	char *pnp;
+{
+	register struct eisa_attach_args *ea = aux;
+	char devinfo[256]; 
+
+	if (pnp) {
+		eisa_devinfo(ea->ea_idstring, devinfo);
+		printf("%s at %s", devinfo, pnp);
+	}
+	printf(" slot %d", ea->ea_slot);
+	return (UNCONF);
+}
+
+int
+eisasubmatch(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct cfdata *cf = match;
+	struct eisa_attach_args *ea = aux;
+
+	if (cf->eisacf_slot != EISA_UNKNOWN_SLOT &&
+	    cf->eisacf_slot != ea->ea_slot)
+		return 0;
+	return ((*cf->cf_driver->cd_match)(parent, match, aux));
+}
+
+void
+eisaattach(parent, self, aux)
+        struct device *parent, *self;
+        void *aux;
+{
+	struct eisabus_attach_args *eba = aux;
+	bus_chipset_tag_t bc;
+	int slot;
+
+	printf("\n");
+
+	bc = eba->eba_bc;
+
+	/*
+	 * Search for and attach subdevices.
+	 *
+	 * Slot 0 is the "motherboard" slot, and the code attaching
+	 * the EISA bus should have already attached an ISA bus there.
+	 */
+	for (slot = 1; slot < EISA_MAX_SLOT; slot++) {
+		struct eisa_attach_args ea;
+		struct cfdata *cf;
+		u_int slotaddr;
+		bus_io_handle_t slotioh;
+		int i;
+
+		ea.ea_bc = bc;
+		ea.ea_slot = slot;
+		slotaddr = EISA_SLOT_ADDR(slot);
+
+		/*
+		 * Get a mapping for the whole slot-specific address
+		 * space.  If we can't, assume nothing's there but warn
+		 * about it.
+		 */
+		if (bus_io_map(bc, slotaddr, EISA_SLOT_SIZE, &slotioh)) {
+			printf("%s: can't map I/O space for slot %d\n", slot);
+			continue;
+		}
+
+		/* Get the vendor ID bytes */
+		for (i = 0; i < EISA_NVIDREGS; i++)
+			ea.ea_vid[i] = bus_io_read_1(bc, slotioh,
+			    EISA_SLOTOFF_VID + i);
+
+		/* Check for device existence */
+		if (EISA_VENDID_NODEV(ea.ea_vid)) {
+#if 0
+			printf("no device at %s slot %d\n", self->dv_xname,
+			    slot);
+			printf("\t(0x%x, 0x%x)\n", ea.ea_vid[0],
+			    ea.ea_vid[1]);
+#endif
+			bus_io_unmap(bc, slotioh, EISA_SLOT_SIZE);
+			continue;
+		}
+
+		/* And check that the firmware didn't biff something badly */
+		if (EISA_VENDID_IDDELAY(ea.ea_vid)) {
+			printf("%s slot %d not configured by BIOS?\n",
+			    self->dv_xname, slot);
+			bus_io_unmap(bc, slotioh, EISA_SLOT_SIZE);
+			continue;
+		}
+
+		/* Get the product ID bytes */
+		for (i = 0; i < EISA_NPIDREGS; i++)
+			ea.ea_pid[i] = bus_io_read_1(bc, slotioh,
+			    EISA_SLOTOFF_PID + i);
+
+		/* Create the ID string from the vendor and product IDs */
+		ea.ea_idstring[0] = EISA_VENDID_0(ea.ea_vid);
+		ea.ea_idstring[1] = EISA_VENDID_1(ea.ea_vid);
+		ea.ea_idstring[2] = EISA_VENDID_2(ea.ea_vid);
+		ea.ea_idstring[3] = EISA_PRODID_0(ea.ea_pid);
+		ea.ea_idstring[4] = EISA_PRODID_1(ea.ea_pid);
+		ea.ea_idstring[5] = EISA_PRODID_2(ea.ea_pid);
+		ea.ea_idstring[6] = EISA_PRODID_3(ea.ea_pid);
+		ea.ea_idstring[7] = '\0';		/* sanity */
+
+		/* We no longer need the I/O handle; free it. */
+		bus_io_unmap(bc, slotioh, EISA_SLOT_SIZE);
+
+		/* Attach matching device. */
+		config_found_sm(self, &ea, eisaprint, eisasubmatch);
+	}
+}
+
+#ifdef EISAVERBOSE
+/*      
+ * Descriptions of of known vendors and devices ("products").
+ */     
+struct eisa_knowndev {
+	int	flags;
+	const char *id, *name;
+};      
+#define EISA_KNOWNDEV_NOPROD     0x01            /* match on vendor only */
+
+#include <dev/eisa/eisadevs_data.h>
+#endif /* EISAVERBOSE */
+
+void
+eisa_devinfo(id, cp)
+	const char *id;
+	char *cp;
+{
+	const char *name;
+	int onlyvendor;
+#ifdef EISAVERBOSE
+	struct eisa_knowndev *edp;
+	int match;
+	const char *unmatched = "unknown ";
+#else
+	const char *unmatched = "";
+#endif
+
+	onlyvendor = 0;
+	name = NULL;
+
+#ifdef EISAVERBOSE
+	/* find the device in the table, if possible. */
+	edp = eisa_knowndevs;
+	while (edp->id != NULL) {
+		/* check this entry for a match */
+		if ((edp->flags & EISA_KNOWNDEV_NOPROD) != 0)
+			match = !strncmp(edp->id, id, 3);
+		else
+			match = !strcmp(edp->id, id);
+		if (match) {
+			name = edp->name;
+			onlyvendor = (edp->flags & EISA_KNOWNDEV_NOPROD) != 0;
+			break;
+		}
+		edp++;
+	}
+#endif
+
+	if (name == NULL)
+		cp += sprintf(cp, "%sdevice %s", unmatched, id);
+	else if (onlyvendor)			/* never if not EISAVERBOSE */
+		cp += sprintf(cp, "unknown %s device %s", name, id);
+	else
+		cp += sprintf(cp, "%s", name);
+}