freebsd-skq/sys/pccard/pccard_nbk.c

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/*
* Copyright (c) 1999, M. Warner Losh.
* 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.
*
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* $FreeBSD$
*/
/*
* This file contains various kludges to allow the legacy pccard system to
* work in the newbus system until the pccard system can be converted
* wholesale to newbus. As that is a while off, I'm providing this glue to
* allow newbus drivers to have pccard attachments.
*
* We do *NOT* implement ISA ivars at all. We are not an isa bus, and drivers
* that abuse isa_{set,get}_* must be fixed in order to work with pccard.
* We use ivars for something else anyway, so it becomes fairly awkward
* to do so.
*
* Here's a summary of the glue that we do to make things work.
*
* First, we have pccard node in the device and driver trees. The pccard
* device lives in the instance tree attached to the nexus. The pccard
* attachments will be attached to that node. This allows one to pass things
* up the tree that terminates at the nexus, like other buses. The pccard
* code will create a device instance for each of the drivers that are to
* be attached.
*
* These compatibility nodes are called pccnbk. PCCard New Bus Kludge.
*/
#include "opt_bus.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/select.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <i386/isa/isa_device.h>
#include <pccard/cardinfo.h>
#include <pccard/slot.h>
#include <pccard/pccard_nbk.h>
#include <dev/pccard/pccardvar.h>
#include <net/ethernet.h>
devclass_t pccard_devclass;
#define PCCARD_NPORT 2
#define PCCARD_NMEM 5
#define PCCARD_NIRQ 1
#define PCCARD_NDRQ 0
#define PCCARD_DEVINFO(d) (struct pccard_devinfo *) device_get_ivars(d)
static int
pccard_probe(device_t dev)
{
device_set_desc(dev, "PC Card bus -- kludge version");
return 0;
}
static void
pccard_print_resources(struct resource_list *rl, const char *name, int type,
int count, const char *format)
{
struct resource_list_entry *rle;
int printed;
int i;
printed = 0;
for (i = 0; i < count; i++) {
rle = resource_list_find(rl, type, i);
if (rle) {
if (printed == 0)
printf(" %s ", name);
else if (printed > 0)
printf(",");
printed++;
printf(format, rle->start);
if (rle->count > 1) {
printf("-");
printf(format, rle->start + rle->count - 1);
}
} else if (i > 3) {
/* check the first few regardless */
break;
}
}
}
static int
pccard_print_child(device_t dev, device_t child)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
struct resource_list *rl = &devi->resources;
int retval = 0;
retval += bus_print_child_header(dev, child);
retval += printf(" at");
if (devi) {
pccard_print_resources(rl, "port", SYS_RES_IOPORT,
PCCARD_NPORT, "%#lx");
pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
PCCARD_NMEM, "%#lx");
pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
"%ld");
pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
"%ld");
retval += printf(" slot %d", devi->slt->slotnum);
}
retval += bus_print_child_footer(dev, child);
return (retval);
}
static int
pccard_set_resource(device_t dev, device_t child, int type, int rid,
u_long start, u_long count)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
struct resource_list *rl = &devi->resources;
if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
&& type != SYS_RES_IRQ && type != SYS_RES_DRQ)
return EINVAL;
if (rid < 0)
return EINVAL;
if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
return EINVAL;
if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
return EINVAL;
if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
return EINVAL;
if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
return EINVAL;
resource_list_add(rl, type, rid, start, start + count - 1, count);
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return 0;
}
static int
pccard_get_resource(device_t dev, device_t child, int type, int rid,
u_long *startp, u_long *countp)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
struct resource_list *rl = &devi->resources;
struct resource_list_entry *rle;
rle = resource_list_find(rl, type, rid);
if (!rle)
return ENOENT;
if (startp)
*startp = rle->start;
if (countp)
*countp = rle->count;
return 0;
}
static void
pccard_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
struct resource_list *rl = &devi->resources;
resource_list_delete(rl, type, rid);
}
static struct resource *
pccard_alloc_resource(device_t bus, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
/*
* Consider adding a resource definition. We allow rid 0 for
* irq, 0-3 for memory and 0-1 for ports
*/
int passthrough = (device_get_parent(child) != bus);
int isdefault = (start == 0UL && end == ~0UL);
struct pccard_devinfo *devi = device_get_ivars(child);
struct resource_list *rl = &devi->resources;
struct resource_list_entry *rle;
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struct resource *res;
if (!passthrough && !isdefault) {
rle = resource_list_find(rl, type, *rid);
if (!rle) {
if (*rid < 0)
return 0;
switch (type) {
case SYS_RES_IRQ:
if (*rid >= PCCARD_NIRQ)
return 0;
break;
case SYS_RES_DRQ:
if (*rid >= PCCARD_NDRQ)
return 0;
break;
case SYS_RES_MEMORY:
if (*rid >= PCCARD_NMEM)
return 0;
break;
case SYS_RES_IOPORT:
if (*rid >= PCCARD_NPORT)
return 0;
break;
default:
return 0;
}
resource_list_add(rl, type, *rid, start, end, count);
}
}
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res = resource_list_alloc(rl, bus, child, type, rid, start, end,
count, flags);
return res;
}
static int
pccard_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *r)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
struct resource_list *rl = &devi->resources;
return resource_list_release(rl, bus, child, type, rid, r);
}
static int
pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
{
struct pccard_devinfo *devi = PCCARD_DEVINFO(child);
switch (which) {
case PCCARD_IVAR_ETHADDR:
bcopy(devi->misc, result, ETHER_ADDR_LEN);
return 0;
}
return ENOENT;
}
static device_method_t pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pccard_probe),
DEVMETHOD(device_attach, bus_generic_attach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, pccard_suspend),
DEVMETHOD(device_resume, pccard_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, pccard_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
DEVMETHOD(bus_alloc_resource, pccard_alloc_resource),
DEVMETHOD(bus_release_resource, pccard_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),
DEVMETHOD(bus_set_resource, pccard_set_resource),
DEVMETHOD(bus_get_resource, pccard_get_resource),
DEVMETHOD(bus_delete_resource, pccard_delete_resource),
DEVMETHOD(bus_read_ivar, pccard_read_ivar),
{ 0, 0 }
};
static driver_t pccard_driver = {
"pccard",
pccard_methods,
1, /* no softc */
};
DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
DRIVER_MODULE(pccard, pc98pcic, pccard_driver, pccard_devclass, 0, 0);
DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);