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Use resource allocation apis to get ports.

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This commit is contained in:
dfr 1999-05-30 10:49:25 +00:00
parent 0681bc77d8
commit 024249e17e
1 changed files with 34 additions and 9 deletions
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43
sys/alpha/isa/mcclock_isa.c
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@ -1,4 +1,4 @@
/* $Id: mcclock_isa.c,v 1.4 1999/05/08 21:58:38 dfr Exp $ */
/* $Id: mcclock_isa.c,v 1.5 1999/05/18 21:24:11 dfr Exp $ */
/* $NetBSD: mcclock_tlsb.c,v 1.8 1998/05/13 02:50:29 thorpej Exp $ */
/*
@ -36,13 +36,20 @@
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <machine/clockvar.h>
#include <dev/dec/mcclockvar.h>
#include <dev/dec/mc146818reg.h>
struct mcclock_softc {
struct resource *port;
};
static int mcclock_isa_probe(device_t dev);
static int mcclock_isa_attach(device_t dev);
static void mcclock_isa_write(device_t, u_int, u_int);
@ -77,7 +84,19 @@ static devclass_t mcclock_devclass;
int
mcclock_isa_probe(device_t dev)
{
isa_set_portsize(dev, 2);
struct mcclock_softc *sc = device_get_softc(dev);
int rid;
/* No pnp support */
if (isa_get_vendorid(dev))
return (ENXIO);
rid = 0;
sc->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, 2, RF_ACTIVE);
if (!sc->port)
return ENXIO;
device_set_desc(dev, "MC146818A real time clock");
return 0;
}
@ -92,17 +111,23 @@ mcclock_isa_attach(device_t dev)
static void
mcclock_isa_write(device_t dev, u_int reg, u_int val)
{
u_int port = isa_get_port(dev);
outb(port, reg);
outb(port+1, val);
struct mcclock_softc *sc = device_get_softc(dev);
bus_space_tag_t iot = rman_get_bustag(sc->port);
bus_space_tag_t ioh = rman_get_bushandle(sc->port);
bus_space_write_1(iot, ioh, 0, reg);
bus_space_write_1(iot, ioh, 1, val);
}
static u_int
mcclock_isa_read(device_t dev, u_int reg)
{
u_int port = isa_get_port(dev);
outb(port, reg);
return inb(port+1);
struct mcclock_softc *sc = device_get_softc(dev);
bus_space_tag_t iot = rman_get_bustag(sc->port);
bus_space_tag_t ioh = rman_get_bushandle(sc->port);
bus_space_write_1(iot, ioh, 0, reg);
return bus_space_read_1(iot, ioh, 1);
}
DRIVER_MODULE(mcclock, isa, mcclock_isa_driver, mcclock_devclass, 0, 0);