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-rw-r--r--sys/dev/mca/mca_bus.c535
-rw-r--r--sys/dev/mca/mca_busreg.h84
-rw-r--r--sys/dev/mca/mca_busvar.h70
3 files changed, 689 insertions, 0 deletions
diff --git a/sys/dev/mca/mca_bus.c b/sys/dev/mca/mca_bus.c
new file mode 100644
index 0000000..a2dd456
--- /dev/null
+++ b/sys/dev/mca/mca_bus.c
@@ -0,0 +1,535 @@
+/*-
+ * Copyright (c) 1999 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.
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * References:
+ * The CMU Mach3 microkernel
+ * NetBSD MCA patches by Scott Telford
+ * Linux MCA code.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/queue.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <machine/limits.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <dev/mca/mca_busreg.h>
+#include <dev/mca/mca_busvar.h>
+
+#include <sys/interrupt.h>
+
+#define MAX_COL 79
+
+static void mca_reg_print (device_t, char *, char *, int *);
+
+struct mca_device {
+ struct resource_list rl; /* Resources */
+
+ mca_id_t id;
+ u_int8_t slot;
+ u_int8_t enabled;
+ u_int8_t pos[8]; /* Programable Option Select Regs. */
+};
+
+/* Not supposed to use this function! */
+void
+mca_pos_set (dev, reg, data)
+ device_t dev;
+ u_int8_t reg;
+ u_int8_t data;
+{
+ struct mca_device * m_dev = device_get_ivars(dev);
+ u_int8_t slot = mca_get_slot(dev);
+
+ if ((slot > MCA_MAX_ADAPTERS) || (reg > MCA_POS7))
+ return;
+
+ /* Disable motherboard setup */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_DIS);
+
+ /* Select adapter setup regs */
+ outb(MCA_ADAP_SETUP_REG, ((slot & 0x0f) | MCA_ADAP_SET));
+
+ /* Write the register */
+ outb(MCA_POS_REG(reg), data);
+
+ /* Disable adapter setup */
+ outb(MCA_ADAP_SETUP_REG, MCA_ADAP_SETUP_DIS);
+
+ /* Update the IVAR copy */
+ m_dev->pos[reg] = data;
+
+ return;
+}
+
+u_int8_t
+mca_pos_get (dev, reg)
+ device_t dev;
+ u_int8_t reg;
+{
+ u_int8_t slot = mca_get_slot(dev);
+ u_int8_t data = 0;
+
+ if ((slot > MCA_MAX_ADAPTERS) || (reg > MCA_POS7))
+ return (0);
+
+ /* Disable motherboard setup */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_DIS);
+
+ switch (slot) {
+ case MCA_MB_SCSI_SLOT:
+
+ /* Disable adapter setup */
+ outb(MCA_ADAP_SETUP_REG, MCA_ADAP_SETUP_DIS);
+
+ /* Select motherboard video setup regs */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_SCSI);
+
+ /* read the register */
+ data = inb(MCA_POS_REG(reg));
+
+ /* Disable motherboard setup */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_DIS);
+
+ break;
+ case MCA_MB_VIDEO_SLOT:
+ /* Disable adapter setup */
+ outb(MCA_ADAP_SETUP_REG, MCA_ADAP_SETUP_DIS);
+
+ /* Select motherboard scsi setup regs */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_VIDEO);
+
+ /* read the register */
+ data = inb(MCA_POS_REG(reg));
+
+ /* Disable motherboard setup */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_DIS);
+ break;
+ default:
+
+ /* Select adapter setup regs */
+ outb(MCA_ADAP_SETUP_REG,
+ ((slot & 0x0f) | MCA_ADAP_SET));
+
+ /* read the register */
+ data = inb(MCA_POS_REG(reg));
+
+ /* Disable adapter setup */
+ outb(MCA_ADAP_SETUP_REG, MCA_ADAP_SETUP_DIS);
+ break;
+ }
+
+ return (data);
+}
+
+const char *
+mca_match_id (id, mca_devs)
+ u_int16_t id;
+ struct mca_ident * mca_devs;
+{
+ struct mca_ident * m = mca_devs;
+ while(m->name != NULL) {
+ if (id == m->id)
+ return (m->name);
+ m++;
+ }
+ return (NULL);
+}
+
+u_int8_t
+mca_pos_read (dev, reg)
+ device_t dev;
+ u_int8_t reg;
+{
+ struct mca_device * m_dev = device_get_ivars(dev);
+
+ if (reg > MCA_POS7)
+ return (0);
+
+ return (m_dev->pos[reg]);
+}
+
+void
+mca_add_irq (dev, irq)
+ device_t dev;
+ int irq;
+{
+ struct mca_device * m_dev = device_get_ivars(dev);
+ int rid = 0;
+
+ while (resource_list_find(&(m_dev->rl), SYS_RES_IRQ, rid)) rid++;
+ resource_list_add(&(m_dev->rl), SYS_RES_IRQ, rid, irq, irq, 1);
+
+ return;
+}
+
+void
+mca_add_drq (dev, drq)
+ device_t dev;
+ int drq;
+{
+ struct mca_device * m_dev = device_get_ivars(dev);
+ int rid = 0;
+
+ while (resource_list_find(&(m_dev->rl), SYS_RES_DRQ, rid)) rid++;
+ resource_list_add(&(m_dev->rl), SYS_RES_DRQ, rid, drq, drq, 1);
+
+ return;
+}
+
+void
+mca_add_mspace (dev, mbase, msize)
+ device_t dev;
+ u_long mbase;
+ u_long msize;
+{
+ struct mca_device * m_dev = device_get_ivars(dev);
+ int rid = 0;
+
+ while (resource_list_find(&(m_dev->rl), SYS_RES_MEMORY, rid)) rid++;
+ resource_list_add(&(m_dev->rl), SYS_RES_MEMORY, rid,
+ mbase, (mbase + msize), msize);
+
+ return;
+}
+
+void
+mca_add_iospace (dev, iobase, iosize)
+ device_t dev;
+ u_long iobase;
+ u_long iosize;
+{
+ struct mca_device * m_dev = device_get_ivars(dev);
+ int rid = 0;
+
+ while (resource_list_find(&(m_dev->rl), SYS_RES_IOPORT, rid)) rid++;
+ resource_list_add(&(m_dev->rl), SYS_RES_IOPORT, rid,
+ iobase, (iobase + iosize), iosize);
+
+ return;
+}
+
+static int
+mca_probe (device_t dev)
+{
+ device_t child;
+ struct mca_device * m_dev = NULL;
+ int devices_found = 0;
+ u_int8_t slot;
+ u_int8_t reg;
+
+ device_set_desc(dev, "MCA bus");
+
+ /* Disable adapter setup */
+ outb(MCA_ADAP_SETUP_REG, MCA_ADAP_SETUP_DIS);
+ /* Disable motherboard setup */
+ outb(MCA_MB_SETUP_REG, MCA_MB_SETUP_DIS);
+
+ if (bootverbose) {
+ printf("POS REG 00 01 02 03 04 05 06 07\n");
+ printf("-----------------------------------\n");
+ }
+
+ for (slot = 0; slot < MCA_MAX_SLOTS; slot++) {
+
+ if (!m_dev) {
+ m_dev = (struct mca_device *)malloc(sizeof(*m_dev),
+ M_DEVBUF, M_NOWAIT);
+ if (!m_dev) {
+ device_printf(dev, "cannot malloc mca_device");
+ break;
+ }
+ }
+ bzero(m_dev, sizeof(*m_dev));
+
+ /* Select adapter setup regs */
+ outb(MCA_ADAP_SETUP_REG, ((slot & 0x0f) | MCA_ADAP_SET));
+
+ /* Read the POS registers */
+ for (reg = MCA_POS0; reg <= MCA_POS7; reg++) {
+ m_dev->pos[reg] = inb(MCA_POS_REG(reg));
+ }
+
+ /* Disable adapter setup */
+ outb(MCA_ADAP_SETUP_REG, MCA_ADAP_SETUP_DIS);
+
+ if (bootverbose) {
+ printf("mca slot %d:", slot + 1);
+ for (reg = MCA_POS0; reg <= MCA_POS7; reg++) {
+ printf(" %02x", m_dev->pos[reg]);
+ }
+ printf("\n");
+ }
+
+ m_dev->id = (u_int16_t)m_dev->pos[MCA_POS0] |
+ ((u_int16_t)m_dev->pos[MCA_POS1] << 8);
+
+ if (m_dev->id == 0xffff) {
+ continue;
+ }
+
+ devices_found++;
+
+ m_dev->enabled = (m_dev->pos[MCA_POS2] & MCA_POS2_ENABLE);
+ m_dev->slot = slot;
+
+ resource_list_init(&(m_dev->rl));
+
+ child = device_add_child(dev, NULL, -1);
+ device_set_ivars(child, m_dev);
+
+ m_dev = NULL;
+ }
+
+ if (m_dev) {
+ free(m_dev, M_DEVBUF);
+ }
+
+ return (devices_found ? 0 : ENXIO);
+}
+
+static void
+mca_reg_print (dev, string, separator, column)
+ device_t dev;
+ char * string;
+ char * separator;
+ int * column;
+{
+ int length = strlen(string);
+
+ length += (separator ? 2 : 1);
+
+ if (((*column) + length) >= MAX_COL) {
+ printf("\n");
+ (*column) = 0;
+ } else if ((*column) != 0) {
+ if (separator) {
+ printf("%c", *separator);
+ (*column)++;
+ }
+ printf(" ");
+ (*column)++;
+ }
+
+ if ((*column) == 0) {
+ (*column) += device_printf(dev, "%s", string);
+ } else {
+ (*column) += printf("%s", string);
+ }
+
+ return;
+}
+
+static int
+mca_print_child (device_t dev, device_t child)
+{
+ char buf[MAX_COL+1];
+ struct mca_device * m_dev = device_get_ivars(child);
+ int rid;
+ struct resource_list_entry * rle;
+ char separator = ',';
+ int column = 0;
+ int retval = 0;
+
+ if (device_get_desc(child)) {
+ snprintf(buf, sizeof(buf), "<%s>", device_get_desc(child));
+ mca_reg_print(child, buf, NULL, &column);
+ }
+
+ rid = 0;
+ while ((rle = resource_list_find(&(m_dev->rl), SYS_RES_IOPORT, rid++))) {
+ if (rle->count == 1) {
+ snprintf(buf, sizeof(buf), "%s%lx",
+ ((rid == 1) ? "io 0x" : "0x"),
+ rle->start);
+ } else {
+ snprintf(buf, sizeof(buf), "%s%lx-0x%lx",
+ ((rid == 1) ? "io 0x" : "0x"),
+ rle->start,
+ (rle->start + rle->count));
+ }
+ mca_reg_print(child, buf,
+ ((rid == 2) ? &separator : NULL), &column);
+ }
+
+ rid = 0;
+ while ((rle = resource_list_find(&(m_dev->rl), SYS_RES_MEMORY, rid++))) {
+ if (rle->count == 1) {
+ snprintf(buf, sizeof(buf), "%s%lx",
+ ((rid == 1) ? "mem 0x" : "0x"),
+ rle->start);
+ } else {
+ snprintf(buf, sizeof(buf), "%s%lx-0x%lx",
+ ((rid == 1) ? "mem 0x" : "0x"),
+ rle->start,
+ (rle->start + rle->count));
+ }
+ mca_reg_print(child, buf,
+ ((rid == 2) ? &separator : NULL), &column);
+ }
+
+ rid = 0;
+ while ((rle = resource_list_find(&(m_dev->rl), SYS_RES_IRQ, rid++))) {
+ snprintf(buf, sizeof(buf), "irq %ld", rle->start);
+ mca_reg_print(child, buf,
+ ((rid == 1) ? &separator : NULL), &column);
+ }
+
+ rid = 0;
+ while ((rle = resource_list_find(&(m_dev->rl), SYS_RES_DRQ, rid++))) {
+ snprintf(buf, sizeof(buf), "drq %lx", rle->start);
+ mca_reg_print(child, buf,
+ ((rid == 1) ? &separator : NULL), &column);
+ }
+
+ snprintf(buf, sizeof(buf), "on %s id %04x slot %d\n",
+ device_get_nameunit(dev),
+ mca_get_id(child), mca_get_slot(child)+1);
+ mca_reg_print(child, buf, NULL, &column);
+
+ return (retval);
+}
+
+static void
+mca_probe_nomatch (device_t dev, device_t child)
+{
+ mca_id_t mca_id = mca_get_id(child);
+ u_int8_t slot = mca_get_slot(child);
+ u_int8_t enabled = mca_get_enabled(child);
+
+ device_printf(dev, "unknown card (id 0x%04x, %s) at slot %d\n",
+ mca_id,
+ (enabled ? "enabled" : "disabled"),
+ slot + 1);
+
+ return;
+}
+
+static int
+mca_read_ivar (device_t dev, device_t child, int which, u_long * result)
+{
+ struct mca_device * m_dev = device_get_ivars(child);
+
+ switch (which) {
+ case MCA_IVAR_SLOT:
+ *result = m_dev->slot;
+ break;
+ case MCA_IVAR_ID:
+ *result = m_dev->id;
+ break;
+ case MCA_IVAR_ENABLED:
+ *result = m_dev->enabled;
+ break;
+ default:
+ return (ENOENT);
+ break;
+ }
+
+ return (0);
+}
+
+static int
+mca_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
+{
+ return (EINVAL);
+}
+
+static struct resource *
+mca_alloc_resource (device_t dev, device_t child, int type, int *rid,
+ u_long start, u_long end, u_long count, u_int flags)
+{
+ struct mca_device * m_dev = device_get_ivars(child);
+ struct resource_list_entry * rle;
+ int isdefault;
+ int passthrough;
+
+ isdefault = (start == 0UL && end == ~0UL);
+ passthrough = (device_get_parent(child) != dev);
+
+ if (!passthrough && !isdefault) {
+ rle = resource_list_find(&(m_dev->rl), type, *rid);
+ if (!rle) {
+ resource_list_add(&(m_dev->rl), type, *rid,
+ start, end, count);
+ }
+ }
+
+ return (resource_list_alloc(&(m_dev->rl), dev, child, type, rid,
+ start, end, count, flags));
+}
+
+static int
+mca_release_resource (device_t dev, device_t child, int type, int rid,
+ struct resource * r)
+{
+ struct mca_device * m_dev = device_get_ivars(child);
+
+ return (resource_list_release(&(m_dev->rl), dev, child, type, rid, r));
+}
+
+static device_method_t mca_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, mca_probe),
+ DEVMETHOD(device_attach, bus_generic_attach),
+ DEVMETHOD(device_shutdown, bus_generic_shutdown),
+ DEVMETHOD(device_suspend, bus_generic_suspend),
+ DEVMETHOD(device_resume, bus_generic_resume),
+
+ /* Bus interface */
+ DEVMETHOD(bus_print_child, mca_print_child),
+ DEVMETHOD(bus_probe_nomatch, mca_probe_nomatch),
+ DEVMETHOD(bus_read_ivar, mca_read_ivar),
+ DEVMETHOD(bus_write_ivar, mca_write_ivar),
+ DEVMETHOD(bus_driver_added, bus_generic_driver_added),
+ DEVMETHOD(bus_alloc_resource, mca_alloc_resource),
+ DEVMETHOD(bus_release_resource, mca_release_resource),
+ DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
+ DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
+ DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
+ DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
+
+ { 0, 0 }
+};
+
+static driver_t mca_driver = {
+ "mca",
+ mca_methods,
+ 1, /* no softc */
+};
+
+static devclass_t mca_devclass;
+
+DRIVER_MODULE(mca, nexus, mca_driver, mca_devclass, 0, 0);
diff --git a/sys/dev/mca/mca_busreg.h b/sys/dev/mca/mca_busreg.h
new file mode 100644
index 0000000..e818b68
--- /dev/null
+++ b/sys/dev/mca/mca_busreg.h
@@ -0,0 +1,84 @@
+/*-
+ * Copyright (c) 1999 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.
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Standardized MCA configuration information
+ */
+
+#define MCA_MAX_SLOTS 8 /* max number of slots per bus */
+#define MCA_MB_SCSI_SLOT 8
+#define MCA_MB_VIDEO_SLOT 9
+#define MCA_MAX_ADAPTERS 9
+
+/*
+ * When an ADF file talks about a POS register
+ * its not talking about the same index we are
+ * so provide this to convert ADF pos register
+ * offsets to our register offsets. (Since
+ * to us, POS0 and POS1 are just 2 more registers
+ */
+
+#define MCA_ADP_POS(pos) (pos + 2)
+
+#define MCA_POS0 0 /* low byte of board ID */
+#define MCA_POS1 1 /* high byte of board ID */
+#define MCA_POS2 2
+# define MCA_POS2_ENABLE 0x01 /* POS2, hi => adapter enabled */
+#define MCA_POS3 3
+#define MCA_POS4 4
+#define MCA_POS5 5
+# define MCA_POS5_CHCK_STAT 0x40 /* lo => CHCK status available */
+# define MCA_POS5_CHCK 0x80 /* lo => adapter CHCK signal */
+#define MCA_POS6 6 /* low byte of CHCK status */
+#define MCA_POS7 7 /* high byte of CHCK status */
+
+/*
+ * MCA register addresses for IBM PS/2
+ */
+
+#define MCA_SYS_CTL_A_REG 0x92 /* PS/2 System Control Port A */
+#define MCA_SYS_CTL_B_REG 0x60 /* PS/2 System Control Port B */
+#define MCA_ARB_REG 0x90 /* MCA Arbitration port */
+#define MCA_CSF_REG 0x91 /* MCA Card Select Feedback */
+
+/*
+ * 0x96, 0x97 POS Registers
+ * 0x100 - 0x107 POS Registers
+ */
+
+#define MCA_MB_SETUP_REG 0x94 /* Motherboard setup register */
+# define MCA_MB_SETUP_DIS 0xff /* Disable motherboard setup */
+# define MCA_MB_SETUP_VIDEO 0xdf
+# define MCA_MB_SETUP_SCSI 0xf7 /* Pri. SCSI setup reg */
+# define MCA_MB_SETUP_SCSI_ALT 0xfd /* Alt. SCSI setup reg */
+
+#define MCA_ADAP_SETUP_REG 0x96 /* Adapter setup register */
+# define MCA_ADAP_SETUP_DIS 0x0 /* Disable adapter setup */
+# define MCA_ADAP_SET 0x08 /* Adapter setup mode */
+# define MCA_ADAP_CHR 0x80 /* Adapter channel reset */
+#define MCA_POS_REG(n) (0x100+(n)) /* POS registers 0-7 */
diff --git a/sys/dev/mca/mca_busvar.h b/sys/dev/mca/mca_busvar.h
new file mode 100644
index 0000000..db11d67
--- /dev/null
+++ b/sys/dev/mca/mca_busvar.h
@@ -0,0 +1,70 @@
+/*-
+ * Copyright (c) 1999 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.
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+typedef u_int16_t mca_id_t;
+
+struct mca_ident {
+ mca_id_t id;
+ char *name;
+};
+
+const char * mca_match_id (u_int16_t, struct mca_ident *);
+
+/*
+ * Simplified accessors for isa devices
+ */
+
+enum mca_device_ivars {
+ MCA_IVAR_SLOT,
+ MCA_IVAR_ID,
+ MCA_IVAR_ENABLED,
+};
+
+#define MCA_ACCESSOR(A, B, T) \
+ \
+static __inline T mca_get_ ## A(device_t dev) \
+{ \
+ uintptr_t v; \
+ BUS_READ_IVAR(device_get_parent(dev), dev, MCA_IVAR_ ## B, &v); \
+ return (T) v; \
+}
+
+MCA_ACCESSOR(slot, SLOT, int)
+MCA_ACCESSOR(id, ID, mca_id_t)
+MCA_ACCESSOR(enabled, ENABLED, int)
+
+/* don't use these! */
+void mca_pos_set (device_t, u_int8_t, u_int8_t);
+u_int8_t mca_pos_get (device_t, u_int8_t);
+
+u_int8_t mca_pos_read (device_t, u_int8_t);
+
+void mca_add_irq (device_t, int);
+void mca_add_drq (device_t, int);
+void mca_add_iospace (device_t, u_long, u_long);
+void mca_add_mspace (device_t, u_long, u_long);
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