Compaq Smart RAID driver for -current. Based on the original ida.c

driver by Mark Dawson.  This probably needs some work, but is stable
enough to boot a RAID-only configuration, and survive `make world'.

1 files changed, 199 insertions, 0 deletions

diff --git a/sys/dev/ida/ida_pci.c b/sys/dev/ida/ida_pci.c
new file mode 100644
index 0000000..95af154
--- /dev/null
+++ b/sys/dev/ida/ida_pci.c
@@ -0,0 +1,199 @@
+/*-
+ * Copyright (c) 1999 Jonathan Lemon
+ * 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.
+ *
+ * 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 <pci.h>
+#if NPCI > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+
+#include <sys/buf.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/devicestat.h>
+
+#include <machine/bus_memio.h>
+#include <machine/bus_pio.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <pci/pcireg.h>
+#include <pci/pcivar.h>
+
+#include <dev/ida/idavar.h>
+
+#define IDA_PCI_MAX_DMA_ADDR	0xFFFFFFFF
+#define IDA_PCI_MAX_DMA_COUNT	0xFFFFFFFF
+
+#define IDA_PCI_MEMADDR		(PCIR_MAPS + 4)		/* Mem I/O Address */
+
+#define IDA_DEVICEID_SMART	0xAE100E11
+
+static struct {
+        u_long	board;
+        char    *desc;
+} board_id[] = {
+	{ 0x4030,	"Compaq SMART-2/P array controller" },
+	{ 0x4031,	"Compaq SMART-2SL array controller" },
+	{ 0x4032,	"Compaq Smart Array 3200 controller" },
+	{ 0x4033,	"Compaq Smart Array 3100ES controller" },
+	{ 0x4034,	"Compaq Smart Array 221 controller" },
+
+	{ 0,		"" },
+};
+
+static int ida_pci_probe(device_t dev);
+static int ida_pci_attach(device_t dev);
+static void ida_pci_print_child(device_t bus, device_t dev);
+
+static device_method_t ida_pci_methods[] = {
+	DEVMETHOD(device_probe,		ida_pci_probe),
+	DEVMETHOD(device_attach,	ida_pci_attach),
+
+	DEVMETHOD(bus_print_child,	ida_pci_print_child),
+
+	{ 0, 0 }
+};
+
+static driver_t ida_pci_driver = {
+	"ida",
+	ida_pci_methods,
+	sizeof(struct ida_softc)
+};
+
+static devclass_t ida_devclass;
+
+static int
+ida_pci_probe(device_t dev)
+{
+	u_long board;
+	int i;
+
+	if (pci_get_devid(dev) == IDA_DEVICEID_SMART) {
+		board = pci_get_subdevice(dev);
+		for (i = 0; board_id[i].board; i++) {
+			if (board_id[i].board == board) {
+				device_set_desc(dev, board_id[i].desc);
+				return (0);
+			}
+		}
+		/*
+		 * It's an unknown Compaq SMART device, but assume we
+		 * can support it.
+		 */
+		device_set_desc(dev, "Unknown Compaq Smart Array controller");
+		return (0);
+	}
+	return (ENXIO);
+}
+
+static int
+ida_pci_attach(device_t dev)
+{
+	struct ida_softc *ida;
+	u_int command;
+	int error, rid;
+
+	command = pci_read_config(dev, PCIR_COMMAND, 1);
+
+	/*
+	 * for multiple card types, need to re-determine which type is
+	 * being attached here
+	 */
+
+	/*
+	 * it appears that this board only does MEMIO access.
+	 */
+	if ((command & PCIM_CMD_MEMEN) == 0) {
+                device_printf(dev, "Only memory mapped I/O is supported\n");
+		return (ENXIO);
+	}
+
+	ida = (struct ida_softc *)device_get_softc(dev);
+	ida->dev = dev;
+
+	ida->regs_res_type = SYS_RES_MEMORY;
+	ida->regs_res_id = IDA_PCI_MEMADDR;
+	ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
+	    &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
+	if (ida->regs == NULL) {
+		device_printf(dev, "can't allocate register resources\n");
+		return (ENOMEM);
+	}
+
+	error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/0,
+	    /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
+	    /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
+	    /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
+	    /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW,
+	    &ida->parent_dmat);
+	if (error != 0) {
+		device_printf(dev, "can't allocate DMA tag\n");
+		ida_free(ida);
+		return (ENOMEM);
+	}
+
+	rid = 0;
+        ida->irq_res_type = SYS_RES_IRQ;
+	ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
+	    0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
+        if (ida->irq == NULL) {
+                ida_free(ida);
+                return (ENOMEM);
+        }
+	error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO,
+	    ida_intr, ida, &ida->ih);
+	if (error) {
+		device_printf(dev, "can't setup interrupt\n");
+		ida_free(ida);
+		return (ENOMEM);
+	}
+
+	error = ida_init(ida);
+	if (error) {
+                ida_free(ida);
+                return (error);
+        }
+	ida_attach(ida);
+	ida->flags = IDA_ATTACHED; 
+
+	return (0);
+}
+
+static void
+ida_pci_print_child(device_t bus, device_t dev)
+{
+	printf(" on %s%d", device_get_name(bus), device_get_unit(bus));
+}
+
+DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
+
+#endif /* NPCI > 0 */