Add support for older EISA compaq cards and newer Smart 4200 cards.

Change disk names to `idad' to avoid naming conflicts with the controller,
and enable the new disk code to pick up the drives.

Tested by:  	david.w.james@bt.com  (existing compaq support)
Reviewed by:	msmith
Approved by:	jordan

1 files changed, 330 insertions, 0 deletions

diff --git a/sys/dev/ida/ida_eisa.c b/sys/dev/ida/ida_eisa.c
new file mode 100644
index 0000000..4ecba8d
--- /dev/null
+++ b/sys/dev/ida/ida_eisa.c
@@ -0,0 +1,330 @@
+/*
+ * Copyright (c) 2000 Jonathan Lemon
+ * Copyright (c) 1999 by Matthew N. Dodd <winter@jurai.net>
+ * 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,
+ *    without modification, immediately at the beginning of the file.
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+
+#include <sys/buf.h>
+#include <sys/devicestat.h>
+#include <sys/disk.h>
+
+#include <machine/bus_pio.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <dev/ida/idavar.h>
+#include <dev/ida/idareg.h>
+
+#include <dev/eisa/eisaconf.h>
+
+#define IDA_EISA_IOPORT_START	0x0c88
+#define IDA_EISA_IOPORT_LEN	0x0017
+
+#define IDA_EISA_IRQ_REG	0x0cc0
+#define IDA_EISA_IRQ_MASK	0xf0
+#define IDA_EISA_IRQ_15		0x80
+#define IDA_EISA_IRQ_14		0x40
+#define IDA_EISA_IRQ_11		0x10
+#define IDA_EISA_IRQ_10		0x20
+
+static int
+ida_v1_fifo_full(struct ida_softc *ida)
+{
+	u_int8_t status;
+
+	status = ida_inb(ida, R_EISA_SYSTEM_DOORBELL);
+	return ((status & EISA_CHANNEL_CLEAR) == 0);
+}
+
+static void
+ida_v1_submit(struct ida_softc *ida, struct ida_qcb *qcb)
+{
+	u_int16_t size;
+
+	/*
+	 * On these cards, this location is actually for control flags.
+	 * Set them to zero and pass in structure size via an I/O port.
+	 */
+	size = qcb->hwqcb->hdr.size << 2;
+	qcb->hwqcb->hdr.size = 0;
+
+	ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_CLEAR);
+	ida_outl(ida, R_EISA_LIST_ADDR, qcb->hwqcb_busaddr);
+	ida_outw(ida, R_EISA_LIST_LEN, size);
+	ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_CLEAR);
+}
+
+static bus_addr_t
+ida_v1_done(struct ida_softc *ida)
+{
+	struct ida_hardware_qcb *hwqcb;
+	bus_addr_t completed;
+	u_int8_t status;
+
+	if ((ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY) == 0)
+		return (0);
+
+	ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_BUSY);
+	completed = ida_inl(ida, R_EISA_COMPLETE_ADDR);
+	status = ida_inb(ida, R_EISA_LIST_STATUS);
+	ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_CLEAR);
+
+	if (completed != 0) {
+        	hwqcb = (struct ida_hardware_qcb *)
+		    ((bus_addr_t)ida->hwqcbs +
+		    ((completed & ~3) - ida->hwqcb_busaddr));
+		hwqcb->req.error = status;
+	}
+
+	return (completed);
+}
+
+static int
+ida_v1_int_pending(struct ida_softc *ida)
+{
+	return (ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY);
+}
+
+static void
+ida_v1_int_enable(struct ida_softc *ida, int enable)
+{
+	if (enable) {
+		ida_outb(ida, R_EISA_SYSTEM_DOORBELL, ~EISA_CHANNEL_CLEAR);
+		ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
+		ida_outb(ida, R_EISA_INT_MASK, INT_ENABLE);
+		ida_outb(ida, R_EISA_SYSTEM_MASK, INT_ENABLE);
+	} else {
+		ida_outb(ida, R_EISA_SYSTEM_MASK, INT_DISABLE);
+	}
+}
+
+static int
+ida_v2_fifo_full(struct ida_softc *ida)
+{
+	return (ida_inl(ida, R_CMD_FIFO) == 0);
+}
+
+static void
+ida_v2_submit(struct ida_softc *ida, struct ida_qcb *qcb)
+{
+	ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
+}
+
+static bus_addr_t
+ida_v2_done(struct ida_softc *ida)
+{
+	return (ida_inl(ida, R_DONE_FIFO));
+}
+
+static int
+ida_v2_int_pending(struct ida_softc *ida)
+{
+	return (ida_inl(ida, R_INT_PENDING));
+}
+
+static void
+ida_v2_int_enable(struct ida_softc *ida, int enable)
+{
+	ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
+}
+
+static struct ida_access ida_v1_access = {
+	ida_v1_fifo_full,
+	ida_v1_submit,
+	ida_v1_done,
+	ida_v1_int_pending,
+	ida_v1_int_enable,
+};
+
+static struct ida_access ida_v2_access = {
+	ida_v2_fifo_full,
+	ida_v2_submit,
+	ida_v2_done,
+	ida_v2_int_pending,
+	ida_v2_int_enable,
+};
+
+static struct ida_board board_id[] = {
+	{ 0x0e114001, "Compaq IDA controller",		    &ida_v1_access },
+	{ 0x0e114002, "Compaq IDA-2 controller",	    &ida_v1_access },	
+	{ 0x0e114010, "Compaq IAES controller",		    &ida_v1_access },
+	{ 0x0e114020, "Compaq SMART array controller",	    &ida_v1_access },
+	{ 0x0e114030, "Compaq SMART-2/E array controller",  &ida_v2_access },
+
+	{ 0, "", 0 }
+};
+
+static struct 	ida_board *ida_eisa_match(eisa_id_t);
+static int	ida_eisa_probe(device_t);
+static int	ida_eisa_attach(device_t);
+
+static device_method_t ida_eisa_methods[] = {
+	DEVMETHOD(device_probe,		ida_eisa_probe),
+	DEVMETHOD(device_attach,	ida_eisa_attach),
+	DEVMETHOD(device_detach,	ida_detach),
+
+	{ 0, 0 }
+};
+
+static driver_t ida_eisa_driver = {
+	"ida",
+	ida_eisa_methods,
+	sizeof(struct ida_softc)
+};
+
+static devclass_t ida_devclass;
+
+static struct ida_board *
+ida_eisa_match(eisa_id_t id)
+{
+	int i;
+
+	for (i = 0; board_id[i].board; i++)
+		if (board_id[i].board == id)
+			return (&board_id[i]);
+	return (NULL);
+}
+
+static int
+ida_eisa_probe(device_t dev)
+{
+	struct ida_board	*board;
+	u_int32_t		io_base;
+	u_int			irq = 0;
+
+	board = ida_eisa_match(eisa_get_id(dev));
+	if (board == NULL)
+		return (ENXIO);
+	device_set_desc(dev, board->desc);
+
+	io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE);
+
+	switch (IDA_EISA_IRQ_MASK & (inb(IDA_EISA_IRQ_REG + io_base))) {
+	case IDA_EISA_IRQ_15:
+		irq = 15;
+		break;
+	case IDA_EISA_IRQ_14:
+		irq = 14;
+		break;
+	case IDA_EISA_IRQ_11:
+		irq = 11;
+		break;
+	case IDA_EISA_IRQ_10:
+		irq = 10;
+		break;
+	default:
+		device_printf(dev, "slot %d, illegal irq setting.\n",
+		    eisa_get_slot(dev));
+		return (ENXIO);
+	}
+
+	eisa_add_iospace(dev, (io_base + IDA_EISA_IOPORT_START),
+			 IDA_EISA_IOPORT_LEN, RESVADDR_NONE);
+
+        eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL);		/* XXX ??? */
+
+	return (0);
+}
+
+static int
+ida_eisa_attach(device_t dev)
+{
+	struct ida_softc	*ida;
+	struct ida_board	*board;
+	int			error;
+	int			rid;
+
+	ida = device_get_softc(dev);
+	ida->dev = dev;
+
+	board = ida_eisa_match(eisa_get_id(dev));
+	ida->cmd = *board->accessor;
+
+	ida->regs_res_type = SYS_RES_IOPORT;
+	ida->regs_res_id = 0;
+	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);
+}
+
+DRIVER_MODULE(ida, eisa, ida_eisa_driver, ida_devclass, 0, 0);