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This is the rest of the MCA support; new_bus code to be exact.

Browse Source 
Should we ever find ourselves on an RS/6000 this code should work
with few changes.
This commit is contained in:
Matthew N. Dodd 1999-09-03 03:40:00 +00:00
parent 478c54971b
commit 30ca126cee
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=50825
4 changed files with 932 additions and 0 deletions
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1
sys/conf/files
View File

@ -780,3 +780,4 @@ dev/pcm/isa/sb.c optional pcm isa
dev/pcm/pci/es1370.c optional pcm pci
dev/pcm/pci/t4dwave.c optional pcm pci
dev/pcm/pci/aureal.c optional pcm pci
dev/mca/mca_bus.c optional mca

773
sys/dev/mca/mca_bus.c Normal file
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@ -0,0 +1,773 @@
/*-
* 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 resvaddr {
u_long addr; /* start address */
u_long size; /* size of reserved area */
int flags;
struct resource *res; /* resource manager handle */
LIST_ENTRY(resvaddr) links; /* List links */
};
LIST_HEAD(resvlist, resvaddr);
struct res_node {
int num;
void *desc;
TAILQ_ENTRY(res_node) links;
};
TAILQ_HEAD(nodelist, res_node);
struct mca_device {
mca_id_t id;
u_int8_t slot;
u_int8_t enabled;
u_int8_t pos[8]; /* Programable Option Select Regs. */
struct nodelist irqs; /* list of reserved IRQs */
struct nodelist drqs; /* list of reserved DRQs */
struct resvlist ioaddrs; /* list of reserved I/O ranges */
struct resvlist maddrs; /* list of reserved memory ranges */
};
static struct res_node *
mca_find_irq (struct mca_device * m_dev, int rid)
{
int i;
struct res_node * irq;
for (i = 0, irq = TAILQ_FIRST(&m_dev->irqs);
i < rid && irq;
i++, irq = TAILQ_NEXT(irq, links))
;
if (irq)
return (irq);
else
return (NULL);
}
static struct res_node *
mca_find_drq (struct mca_device * m_dev, int rid)
{
int i;
struct res_node * drq;
for (i = 0, drq = TAILQ_FIRST(&m_dev->drqs);
i < rid && drq;
i++, drq = TAILQ_NEXT(drq, links))
;
if (drq)
return (drq);
else
return (NULL);
}
static struct resvaddr *
mca_find_ioaddr (struct mca_device *m_dev, int rid)
{
int i;
struct resvaddr * resv;
for (i = 0, resv = LIST_FIRST(&m_dev->ioaddrs);
i < rid && resv;
i++, resv = LIST_NEXT(resv, links))
;
return (resv);
}
static struct resvaddr *
mca_find_maddr (struct mca_device * m_dev, int rid)
{
int i;
struct resvaddr * resv;
for (i = 0, resv = LIST_FIRST(&m_dev->maddrs);
i < rid && resv;
i++, resv = LIST_NEXT(resv, links))
;
return (resv);
}
/* 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]);
}
int
mca_add_irq (dev, irq)
device_t dev;
int irq;
{
struct mca_device * m_dev = device_get_ivars(dev);
struct res_node * irq_info;
irq_info = (struct res_node *)malloc(sizeof(*irq_info),
M_DEVBUF, M_NOWAIT);
if (irq_info == NULL)
return (1);
irq_info->num = irq;
irq_info->desc = NULL;
TAILQ_INSERT_TAIL(&m_dev->irqs, irq_info, links);
return (0);
}
int
mca_add_drq (dev, drq)
device_t dev;
int drq;
{
struct mca_device * m_dev = device_get_ivars(dev);
struct res_node * drq_info;
drq_info = (struct res_node *)malloc(sizeof(*drq_info),
M_DEVBUF, M_NOWAIT);
if (drq_info == NULL)
return (1);
drq_info->num = drq;
drq_info->desc = NULL;
TAILQ_INSERT_TAIL(&m_dev->drqs, drq_info, links);
return (0);
}
static int
mca_add_resvaddr (struct mca_device * m_dev, struct resvlist * head,
u_long base, u_long size, int flags)
{
struct resvaddr * reservation;
reservation = (struct resvaddr *)malloc(sizeof(struct resvaddr),
M_DEVBUF, M_NOWAIT);
if(!reservation)
return (ENOMEM);
reservation->addr = base;
reservation->size = size;
reservation->flags = flags;
if (!head->lh_first) {
LIST_INSERT_HEAD(head, reservation, links);
} else {
struct resvaddr * node;
for(node = head->lh_first; node; node = node->links.le_next) {
if (node->addr > reservation->addr) {
/*
* List is sorted in increasing
* address order.
*/
LIST_INSERT_BEFORE(node, reservation, links);
break;
}
if (node->addr == reservation->addr) {
/*
* If the entry we want to add
* matches any already in here,
* fail.
*/
free(reservation, M_DEVBUF);
return (EEXIST);
}
if (!node->links.le_next) {
LIST_INSERT_AFTER(node, reservation, links);
break;
}
}
}
return (0);
}
int
mca_add_mspace (dev, mbase, msize, flags)
device_t dev;
u_long mbase;
u_long msize;
int flags;
{
struct mca_device *m_dev = device_get_ivars(dev);
return (mca_add_resvaddr(m_dev, &(m_dev->maddrs),
mbase, msize, flags));
}
int
mca_add_iospace (dev, iobase, iosize, flags)
device_t dev;
u_long iobase;
u_long iosize;
int flags;
{
struct mca_device * m_dev = device_get_ivars(dev);
return (mca_add_resvaddr(m_dev, &(m_dev->ioaddrs),
iobase, iosize, flags));
}
static int
mca_probe (device_t dev)
{
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;
/* Initialize our lists of reserved addresses */
LIST_INIT(&(m_dev->ioaddrs));
LIST_INIT(&(m_dev->maddrs));
TAILQ_INIT(&(m_dev->irqs));
TAILQ_INIT(&(m_dev->drqs));
device_add_child(dev, NULL, -1, 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[81];
struct mca_device * m_dev = device_get_ivars(child);
int rid;
struct res_node * node;
struct resvaddr * resv;
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 ((resv = mca_find_ioaddr(m_dev, rid++))) {
if (resv->size == 1) {
snprintf(buf, sizeof(buf), "%s%lx",
((rid == 1) ? "io 0x" : "0x"),
resv->addr);
} else {
snprintf(buf, sizeof(buf), "%s%lx-0x%lx",
((rid == 1) ? "io 0x" : "0x"),
resv->addr,
(resv->addr + resv->size));
}
mca_reg_print(child, buf,
((rid == 2) ? &separator : NULL), &column);
}
rid = 0;
while ((resv = mca_find_maddr(m_dev, rid++))) {
if (resv->size == 1) {
snprintf(buf, sizeof(buf), "%s%lx",
((rid == 1) ? "mem 0x" : "0x"),
resv->addr);
} else {
snprintf(buf, sizeof(buf), "%s%lx-0x%lx",
((rid == 1) ? "mem 0x" : "0x"),
resv->addr,
(resv->addr + resv->size));
}
mca_reg_print(child, buf,
((rid == 2) ? &separator : NULL), &column);
}
rid = 0;
while ((node = mca_find_irq(m_dev, rid++)) != NULL) {
snprintf(buf, sizeof(buf), "irq %d", node->num);
mca_reg_print(child, buf,
((rid == 1) ? &separator : NULL), &column);
}
rid = 0;
while ((node = mca_find_drq(m_dev, rid++)) != NULL) {
snprintf(buf, sizeof(buf), "drq %x", node->num);
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);
struct res_node * node;
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;
case MCA_IVAR_IRQ:
if ((node = mca_find_irq(m_dev, 0)))
*result = node->num;
else
*result = -1;
break;
case MCA_IVAR_DRQ:
if ((node = mca_find_drq(m_dev, 0)))
*result = node->num;
else
*result = -1;
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 * rv;
struct resource ** rvp = NULL;
struct resvaddr * resv;
struct res_node * node;
int isdefault;
isdefault = ((device_get_parent(child) == dev)
&& (start == 0UL)
&& (end == ~0UL));
switch (type) {
case SYS_RES_IRQ:
if (isdefault) {
node = mca_find_irq(m_dev, *rid);
if (!node)
return (0);
start = end = node->num;
count = 1;
flags |= RF_SHAREABLE;
}
break;
case SYS_RES_DRQ:
if (isdefault) {
node = mca_find_drq(m_dev, *rid);
if (!node)
return (0);
start = end = node->num;
count = 1;
}
break;
case SYS_RES_MEMORY:
if (isdefault) {
resv = mca_find_maddr(m_dev, *rid);
if (!resv)
return (0);
start = resv->addr;
end = resv->addr + resv->size;
count = resv->size;
rvp = &resv->res;
}
break;
case SYS_RES_IOPORT:
if (isdefault) {
resv = mca_find_ioaddr(m_dev, *rid);
if (!resv)
return (0);
start = resv->addr;
end = resv->addr + resv->size;
count = resv->size;
rvp = &resv->res;
}
break;
default:
return (0);
break;
}
rv = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
type, rid, start, end, count, flags);
if (rvp)
*rvp = rv;
return (rv);
}
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);
struct resvaddr * resv = NULL;
int rv;
int isdefault;
isdefault = (device_get_parent(child) == dev);
switch (type) {
case SYS_RES_IRQ:
if (mca_find_irq(m_dev, rid) == NULL)
return (EINVAL);
break;
case SYS_RES_DRQ:
if (mca_find_drq(m_dev, rid) == NULL)
return (EINVAL);
break;
case SYS_RES_MEMORY:
if (isdefault) {
resv = mca_find_maddr(m_dev, rid);
}
break;
case SYS_RES_IOPORT:
if (isdefault) {
resv = mca_find_ioaddr(m_dev, rid);
}
break;
default:
break;
}
rv = BUS_RELEASE_RESOURCE(device_get_parent(dev), child, type, rid, r);
if (rv == 0) {
if (resv)
resv->res = 0;
}
return (rv);
}
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);

84
sys/dev/mca/mca_busreg.h Normal file
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@ -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 */

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/*-
* 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,
MCA_IVAR_IRQ,
MCA_IVAR_DRQ,
};
#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)
MCA_ACCESSOR(irq, IRQ, int)
MCA_ACCESSOR(drq, DRQ, 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);
int mca_add_irq (device_t, int);
int mca_add_drq (device_t, int);
int mca_add_iospace (device_t, u_long, u_long, int);
int mca_add_mspace (device_t, u_long, u_long, int);