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freebsd/sys/pccard/plxcard.c
Warner Losh 4363df4cf9 Change plxic to plxcard, per phk. He thnks plxic is too generic a
name.  I didn't do repo magic because this is so new.
2001-06-01 05:20:38 +00:00

449 lines
10 KiB
C

/*
* PLX pseudo controller
*-------------------------------------------------------------------------
*
* Copyright (c) 2001 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 ``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 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/bus.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <pccard/meciareg.h>
#include <pccard/cardinfo.h>
#include <pccard/slot.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.h"
#define PLXCARD_DEVICE2SOFTC(dev) \
((struct plxcard_slot *) device_get_softc(dev))
/*
* Prototypes for interrupt handler.
*/
static driver_intr_t plxcardintr;
static int plxcard_ioctl(struct slot *, int, caddr_t);
static int plxcard_power(struct slot *);
static void plxcard_mapirq(struct slot *, int);
static timeout_t plxcard_reset;
static void plxcard_resume(struct slot *);
static void plxcard_disable(struct slot *);
static int plxcard_memory(struct slot *, int);
static int plxcard_io(struct slot *, int);
/*
* Per-slot data table.
*/
struct plxcard_slot {
int unit; /* Unit number */
int slotnum; /* My slot number */
struct slot *slt; /* Back ptr to slot */
device_t dev; /* My device */
};
static struct slot_ctrl plxcard_cinfo = {
plxcard_mapirq,
plxcard_memory,
plxcard_io,
plxcard_reset,
plxcard_disable,
plxcard_power,
plxcard_ioctl,
plxcard_resume,
1,
1
};
static int validunits = 0;
/*
* For each available slot, allocate a PC-CARD slot.
*/
static int
plxcard_probe(device_t dev)
{
return (ENXIO);
}
static int
plxcard_attach(device_t dev)
{
int error;
void *ih;
device_t kid;
struct resource *r;
int rid;
struct slot *slt;
struct plxcard_slot *sp;
sp = PLXCARD_DEVICE2SOFTC(dev);
sp->unit = validunits++;
kid = device_add_child(dev, NULL, -1);
if (kid == NULL) {
device_printf(dev, "Can't add pccard bus slot 0\n");
return (ENXIO);
}
device_probe_and_attach(kid);
slt = pccard_init_slot(kid, &plxcard_cinfo);
if (slt == 0) {
device_printf(dev, "Can't get pccard info slot 0\n");
return (ENXIO);
}
slt->cdata = sp;
sp->slt = slt;
validunits++;
rid = 0;
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
if (r) {
error = bus_setup_intr(dev, r, INTR_TYPE_MISC,
plxcardintr, (void *) sp, &ih);
if (error) {
bus_release_resource(dev, SYS_RES_IRQ, rid, r);
return (error);
}
sp->slt->irq = rman_get_start(r);
}
return (bus_generic_attach(dev));
}
/*
* ioctl calls - Controller specific ioctls
*/
static int
plxcard_ioctl(struct slot *slt, int cmd, caddr_t data)
{
return (ENOTTY);
}
/*
* PLXCARD Interrupt handler.
* Check the slot and report any changes.
*/
static void
plxcardintr(void *arg)
{
}
static int
plxcard_memory(struct slot *slt, int win)
{
struct mem_desc *mp = &slt->mem[win];
if (mp->flags & MDF_ACTIVE) {
} else { /* !(mp->flags & MDF_ACTIVE) */
}
return (0);
}
static int
plxcard_io(struct slot *slt, int win)
{
struct io_desc *ip = &slt->io[win];
if (ip->flags & IODF_ACTIVE) {
} else {
}
return (0);
}
static int
plxcard_power(struct slot *slt)
{
return (0);
}
static void
plxcard_mapirq(struct slot *slt, int irq)
{
}
static void
plxcard_reset(void *chan)
{
struct slot *slt = chan;
selwakeup(&slt->selp);
}
static void
plxcard_disable(struct slot *slt)
{
/* null function */
}
static void
plxcard_resume(struct slot *slt)
{
/* XXX PLXCARD How ? */
}
static int
plxcard_activate_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
struct pccard_devinfo *devi = device_get_ivars(child);
int err;
if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
return (bus_generic_activate_resource(dev, child, type,
rid, r));
switch (type) {
case SYS_RES_IOPORT: {
struct io_desc *ip;
ip = &devi->slt->io[rid];
if (ip->flags == 0) {
if (rid == 0)
ip->flags = IODF_WS | IODF_16BIT | IODF_CS16;
else
ip->flags = devi->slt->io[0].flags;
}
ip->flags |= IODF_ACTIVE;
ip->start = rman_get_start(r);
ip->size = rman_get_end(r) - rman_get_start(r) + 1;
err = plxcard_cinfo.mapio(devi->slt, rid);
if (err)
return (err);
break;
}
case SYS_RES_IRQ:
/*
* We actually defer the activation of the IRQ resource
* until the interrupt is registered to avoid stray
* interrupt messages.
*/
break;
case SYS_RES_MEMORY: {
struct mem_desc *mp;
if (rid >= NUM_MEM_WINDOWS)
return (EINVAL);
mp = &devi->slt->mem[rid];
mp->flags |= MDF_ACTIVE;
mp->start = (caddr_t) rman_get_start(r);
mp->size = rman_get_end(r) - rman_get_start(r) + 1;
err = plxcard_cinfo.mapmem(devi->slt, rid);
if (err)
return (err);
break;
}
default:
break;
}
err = bus_generic_activate_resource(dev, child, type, rid, r);
return (err);
}
static int
plxcard_deactivate_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
struct pccard_devinfo *devi = device_get_ivars(child);
int err;
if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
return (bus_generic_deactivate_resource(dev, child, type,
rid, r));
switch (type) {
case SYS_RES_IOPORT: {
struct io_desc *ip = &devi->slt->io[rid];
ip->flags &= ~IODF_ACTIVE;
err = plxcard_cinfo.mapio(devi->slt, rid);
if (err)
return (err);
break;
}
case SYS_RES_IRQ:
break;
case SYS_RES_MEMORY: {
struct mem_desc *mp = &devi->slt->mem[rid];
mp->flags &= ~(MDF_ACTIVE | MDF_ATTR);
err = plxcard_cinfo.mapmem(devi->slt, rid);
if (err)
return (err);
break;
}
default:
break;
}
err = bus_generic_deactivate_resource(dev, child, type, rid, r);
return (err);
}
static int
plxcard_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *intr, void *arg, void **cookiep)
{
struct pccard_devinfo *devi = device_get_ivars(child);
int err;
err = bus_generic_setup_intr(dev, child, irq, flags, intr, arg,
cookiep);
if (err == 0)
plxcard_cinfo.mapirq(devi->slt, rman_get_start(irq));
else
device_printf(dev, "Error %d irq %ld\n", err,
rman_get_start(irq));
return (err);
}
static int
plxcard_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie)
{
struct pccard_devinfo *devi = device_get_ivars(child);
plxcard_cinfo.mapirq(devi->slt, 0);
return (bus_generic_teardown_intr(dev, child, irq, cookie));
}
static int
plxcard_set_res_flags(device_t bus, device_t child, int restype, int rid,
u_long value)
{
struct pccard_devinfo *devi = device_get_ivars(child);
int err = 0;
switch (restype) {
case SYS_RES_MEMORY: {
struct mem_desc *mp = &devi->slt->mem[rid];
switch (value) {
case PCCARD_A_MEM_COM:
mp->flags &= ~MDF_ATTR;
break;
case PCCARD_A_MEM_ATTR:
mp->flags |= MDF_ATTR;
break;
case PCCARD_A_MEM_8BIT:
mp->flags &= ~MDF_16BITS;
break;
case PCCARD_A_MEM_16BIT:
mp->flags |= MDF_16BITS;
break;
}
err = plxcard_cinfo.mapmem(devi->slt, rid);
break;
}
default:
err = EOPNOTSUPP;
}
return (err);
}
static int
plxcard_get_res_flags(device_t bus, device_t child, int restype, int rid,
u_long *value)
{
struct pccard_devinfo *devi = device_get_ivars(child);
int err = 0;
if (value == 0)
return (ENOMEM);
switch (restype) {
case SYS_RES_IOPORT: {
struct io_desc *ip = &devi->slt->io[rid];
*value = ip->flags;
break;
}
case SYS_RES_MEMORY: {
struct mem_desc *mp = &devi->slt->mem[rid];
*value = mp->flags;
break;
}
default:
err = EOPNOTSUPP;
}
return (err);
}
static int
plxcard_set_memory_offset(device_t bus, device_t child, int rid,
u_int32_t offset, u_int32_t *deltap)
{
struct pccard_devinfo *devi = device_get_ivars(child);
struct mem_desc *mp = &devi->slt->mem[rid];
mp->card = offset;
if (deltap)
*deltap = 0; /* XXX BAD XXX */
return (plxcard_cinfo.mapmem(devi->slt, rid));
}
static int
plxcard_get_memory_offset(device_t bus, device_t child, int rid,
u_int32_t *offset)
{
struct pccard_devinfo *devi = device_get_ivars(child);
struct mem_desc *mp = &devi->slt->mem[rid];
if (offset == 0)
return (ENOMEM);
*offset = mp->card;
return (0);
}
static device_method_t plxcard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, plxcard_probe),
DEVMETHOD(device_attach, plxcard_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
DEVMETHOD(bus_activate_resource, plxcard_activate_resource),
DEVMETHOD(bus_deactivate_resource, plxcard_deactivate_resource),
DEVMETHOD(bus_setup_intr, plxcard_setup_intr),
DEVMETHOD(bus_teardown_intr, plxcard_teardown_intr),
/* Card interface */
DEVMETHOD(card_set_res_flags, plxcard_set_res_flags),
DEVMETHOD(card_get_res_flags, plxcard_get_res_flags),
DEVMETHOD(card_set_memory_offset, plxcard_set_memory_offset),
DEVMETHOD(card_get_memory_offset, plxcard_get_memory_offset),
{ 0, 0 }
};
devclass_t plxcard_devclass;
static driver_t plxcard_driver = {
"plxcard",
plxcard_methods,
sizeof(struct plxcard_slot)
};
DRIVER_MODULE(plxcard, pci, plxcard_driver, plxcard_devclass, 0, 0);