Mylex/Buslogic MultiMaster SCSI-Host Adapter Driver for CAM.

1 files changed, 392 insertions, 0 deletions

diff --git a/sys/i386/eisa/bt_eisa.c b/sys/i386/eisa/bt_eisa.c
new file mode 100644
index 0000000..fcd5940
--- /dev/null
+++ b/sys/i386/eisa/bt_eisa.c
@@ -0,0 +1,392 @@
+/*
+ * Product specific probe and attach routines for:
+ * 	Buslogic BT74x SCSI controllers
+ *
+ * Copyright (c) 1995, 1998 Justin T. Gibbs
+ * 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 immediately at the beginning of the file, without modification,
+ *    this list of conditions, and the following disclaimer.
+ * 2. 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 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 AUTHOR 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.
+ *
+ *	$Id$
+ */
+
+#include "eisa.h"
+#if NEISA > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+
+#include <machine/bus_pio.h>
+#include <machine/bus.h>
+
+#include <i386/eisa/eisaconf.h>
+
+#include <dev/buslogic/btreg.h>
+
+#define EISA_DEVICE_ID_BUSLOGIC_74X_B	0x0ab34201
+#define EISA_DEVICE_ID_BUSLOGIC_74X_C	0x0ab34202
+#define EISA_DEVICE_ID_SDC3222F		0x0ab34781
+#define	EISA_DEVICE_ID_AMI_4801		0x05a94801
+
+#define BT_IOSIZE		0x04		/* Move to central header */
+#define BT_EISA_IOSIZE		0x100
+#define	BT_EISA_SLOT_OFFSET	0xc00
+
+#define EISA_IOCONF			0x08C
+#define		PORTADDR		0x07
+#define			PORT_330	0x00
+#define			PORT_334	0x01
+#define			PORT_230	0x02
+#define			PORT_234	0x03
+#define			PORT_130	0x04
+#define			PORT_134	0x05
+#define		IRQ_CHANNEL		0xe0
+#define			INT_11		0x40
+#define			INT_10		0x20
+#define			INT_15		0xa0
+#define			INT_12		0x60
+#define			INT_14		0x80
+#define			INT_9		0x00
+
+#define EISA_IRQ_TYPE                   0x08D
+#define       LEVEL                     0x40
+
+/* Definitions for the AMI Series 48 controler */
+#define	AMI_EISA_IOSIZE			0x500	/* Two separate ranges?? */
+#define	AMI_EISA_SLOT_OFFSET		0x800
+#define	AMI_EISA_IOCONF			0x000
+#define		AMI_DMA_CHANNEL		0x03
+#define		AMI_IRQ_CHANNEL		0x1c
+#define			AMI_INT_15	0x14
+#define			AMI_INT_14	0x10
+#define			AMI_INT_12	0x0c
+#define			AMI_INT_11	0x00
+#define			AMI_INT_10	0x08
+#define			AMI_INT_9	0x04
+#define		AMI_BIOS_ADDR		0xe0
+
+#define	AMI_EISA_IOCONF1		0x001
+#define		AMI_PORTADDR		0x0e
+#define			AMI_PORT_334	0x08
+#define			AMI_PORT_330	0x00
+#define			AMI_PORT_234	0x0c
+#define			AMI_PORT_230	0x04
+#define			AMI_PORT_134	0x0a
+#define			AMI_PORT_130	0x02
+#define		AMI_IRQ_LEVEL		0x01
+
+
+#define	AMI_MISC2_OPTIONS		0x49E
+#define		AMI_ENABLE_ISA_DMA	0x08
+
+static int	bt_eisa_probe(void);
+static int	bt_eisa_attach(struct eisa_device *e_dev);
+
+static struct eisa_driver bt_eisa_driver = {
+	"bt",
+	bt_eisa_probe,
+	bt_eisa_attach,
+	/*shutdown*/NULL,
+	&bt_unit
+};
+
+DATA_SET (eisadriver_set, bt_eisa_driver);
+
+static const char *bt_match(eisa_id_t type);
+
+static const char*
+bt_match(eisa_id_t type)
+{
+	switch(type) {
+		case EISA_DEVICE_ID_BUSLOGIC_74X_B:
+			return ("Buslogic 74xB SCSI host adapter");
+			break;
+		case EISA_DEVICE_ID_BUSLOGIC_74X_C:
+			return ("Buslogic 74xC SCSI host adapter");
+			break;
+		case EISA_DEVICE_ID_SDC3222F:
+			return ("Storage Dimensions SDC3222F SCSI host adapter");
+			break;
+		case EISA_DEVICE_ID_AMI_4801:
+			return ("AMI Series 48 SCSI host adapter");
+			break;
+		default:
+			break;
+	}
+	return (NULL);
+}
+
+static int
+bt_eisa_probe(void)
+{
+	u_long iobase;
+	struct eisa_device *e_dev = NULL;
+	int count;
+
+	count = 0;
+	while ((e_dev = eisa_match_dev(e_dev, bt_match))) {
+		u_char ioconf;
+		u_long port;
+		int irq;
+
+		iobase = (e_dev->ioconf.slot * EISA_SLOT_SIZE); 
+		if (e_dev->id == EISA_DEVICE_ID_AMI_4801) {
+			u_char ioconf1;
+			iobase += AMI_EISA_SLOT_OFFSET;
+
+			eisa_add_iospace(e_dev, iobase, AMI_EISA_IOSIZE,
+					 RESVADDR_NONE);
+
+			ioconf = inb(iobase + AMI_EISA_IOCONF);
+			ioconf1 = inb(iobase + AMI_EISA_IOCONF1);
+			/* Determine "ISA" I/O port */
+			switch (ioconf1 & AMI_PORTADDR) {
+				case AMI_PORT_330:
+					port = 0x330;
+					break;
+				case AMI_PORT_334:
+					port = 0x334;
+					break;
+				case AMI_PORT_230:
+					port = 0x230;
+					break;
+				case AMI_PORT_234:
+					port = 0x234;
+					break;
+				case AMI_PORT_134:
+					port = 0x134;
+					break;
+				case AMI_PORT_130:
+					port = 0x130;
+					break;
+				default:
+					/* Disabled */
+					printf("bt: AMI EISA Adapter at "
+					       "slot %d has a disabled I/O "
+					       "port.  Cannot attach.\n",
+					       e_dev->ioconf.slot);
+					continue;
+			}
+
+			/* Determine our IRQ */
+			switch (ioconf & AMI_IRQ_CHANNEL) {
+				case AMI_INT_11:
+					irq = 11;
+					break;
+				case AMI_INT_10:
+					irq = 10;
+					break;
+				case AMI_INT_15:
+					irq = 15;
+					break;
+				case AMI_INT_12:
+					irq = 12;
+					break;
+				case AMI_INT_14:
+					irq = 14;
+					break;
+				case AMI_INT_9:
+					irq = 9;
+					break;
+				default:
+					/* Disabled */
+					printf("bt: AMI EISA Adapter at "
+					       "slot %d has its IRQ disabled. "
+					       "Cannot attach.\n", 
+					       e_dev->ioconf.slot);
+					continue;
+			}
+		} else {
+			iobase += BT_EISA_SLOT_OFFSET;
+
+			eisa_add_iospace(e_dev, iobase, BT_EISA_IOSIZE,
+					 RESVADDR_NONE);
+
+			ioconf = inb(iobase + EISA_IOCONF);
+			/* Determine "ISA" I/O port */
+			switch (ioconf & PORTADDR) {
+				case PORT_330:
+					port = 0x330;
+					break;
+				case PORT_334:
+					port = 0x334;
+					break;
+				case PORT_230:
+					port = 0x230;
+					break;
+				case PORT_234:
+					port = 0x234;
+					break;
+				case PORT_130:
+					port = 0x130;
+					break;
+				case PORT_134:
+					port = 0x134;
+					break;
+				default:
+					/* Disabled */
+					printf("bt: Buslogic EISA Adapter at "
+					       "slot %d has a disabled I/O "
+					       "port.  Cannot attach.\n",
+					       e_dev->ioconf.slot);
+					continue;
+			}
+
+			/* Determine our IRQ */
+			switch (ioconf & IRQ_CHANNEL) {
+				case INT_11:
+					irq = 11;
+					break;
+				case INT_10:
+					irq = 10;
+					break;
+				case INT_15:
+					irq = 15;
+					break;
+				case INT_12:
+					irq = 12;
+					break;
+				case INT_14:
+					irq = 14;
+					break;
+				case INT_9:
+					irq = 9;
+					break;
+				default:
+					/* Disabled */
+					printf("bt: Buslogic EISA Adapter at "
+					       "slot %d has its IRQ disabled. "
+					       "Cannot attach.\n", 
+						e_dev->ioconf.slot);
+					continue;
+			}
+
+		}
+		bt_mark_probed_iop(port);
+		eisa_add_iospace(e_dev, port, BT_IOSIZE, RESVADDR_NONE);
+		eisa_add_intr(e_dev, irq);
+
+		eisa_registerdev(e_dev, &bt_eisa_driver);
+
+		count++;
+	}
+	return count;
+}
+
+static int
+bt_eisa_attach(struct eisa_device *e_dev)
+{
+	struct bt_softc *bt;
+	int unit = e_dev->unit;
+	int irq;
+	resvaddr_t *ioport;
+	resvaddr_t *eisa_ioport;
+	u_char level_intr;
+
+	if (TAILQ_FIRST(&e_dev->ioconf.irqs) == NULL)
+		return (-1);
+
+	irq = TAILQ_FIRST(&e_dev->ioconf.irqs)->irq_no;
+
+	/*
+	 * The addresses are sorted in increasing order
+	 * so we know the port to pass to the core bt
+	 * driver comes first.
+	 */
+	ioport = e_dev->ioconf.ioaddrs.lh_first;
+
+	if (ioport == NULL)
+		return -1;
+
+	eisa_ioport = ioport->links.le_next;
+
+	if (eisa_ioport == NULL)
+		return -1;
+
+	if (e_dev->id == EISA_DEVICE_ID_AMI_4801) {
+		level_intr = inb(eisa_ioport->addr + AMI_EISA_IOCONF1)
+				& AMI_IRQ_LEVEL;
+	} else {
+		level_intr = inb(eisa_ioport->addr + EISA_IRQ_TYPE)
+                                & LEVEL;
+	}
+
+	eisa_reg_start(e_dev);
+	if (eisa_reg_iospace(e_dev, ioport))
+		return -1;
+
+	if (eisa_reg_iospace(e_dev, eisa_ioport))
+		return -1;
+
+	if ((bt = bt_alloc(unit, I386_BUS_SPACE_IO, ioport->addr)) == NULL)
+		return -1;
+
+	/* Allocate a dmatag for our SCB DMA maps */
+	/* XXX Should be a child of the PCI bus dma tag */
+	if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/0, /*boundary*/0,
+			       /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
+			       /*highaddr*/BUS_SPACE_MAXADDR,
+			       /*filter*/NULL, /*filterarg*/NULL,
+			       /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
+			       /*nsegments*/BUS_SPACE_UNRESTRICTED,
+			       /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
+			       /*flags*/0, &bt->parent_dmat) != 0) {
+		bt_free(bt);
+		return -1;
+	}
+
+	if (eisa_reg_intr(e_dev, irq, bt_intr, (void *)bt, &cam_imask,
+			 /*shared ==*/level_intr)) {
+		bt_free(bt);
+		return -1;
+	}
+	eisa_reg_end(e_dev);
+
+	/*
+	 * Now that we know we own the resources we need, do the full
+	 * card initialization.
+	 */
+	if (bt_probe(bt) || bt_fetch_adapter_info(bt) || bt_init(bt)) {
+		bt_free(bt);
+		/*
+		 * The board's IRQ line will not be left enabled
+		 * if we can't intialize correctly, so its safe
+		 * to release the irq.
+		 */
+		eisa_release_intr(e_dev, irq, bt_intr);
+		return -1;
+	}
+
+	/* Attach sub-devices - always succeeds */
+	bt_attach(bt);
+
+	if (eisa_enable_intr(e_dev, irq)) {
+		bt_free(bt);
+		eisa_release_intr(e_dev, irq, bt_intr);
+		return -1;
+	}
+
+	return 0;
+}
+
+#endif /* NEISA > 0 */