NetBSD/sys/arch/hpcmips/dev/plum.c

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1999-11-21 09:50:26 +03:00
/* $NetBSD: plum.c,v 1.1 1999/11/21 06:50:26 uch Exp $ */
/*
* Copyright (c) 1999, by UCHIYAMA Yasushi
* 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. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
*/
#include "opt_tx39_debug.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <hpcmips/tx/tx39var.h>
#include <hpcmips/tx/txcsbusvar.h>
#include <hpcmips/dev/plumvar.h>
#include <hpcmips/dev/plumreg.h>
int plum_match __P((struct device*, struct cfdata*, void*));
void plum_attach __P((struct device*, struct device*, void*));
int plum_print __P((void*, const char*));
int plum_search __P((struct device*, struct cfdata*, void*));
struct plum_softc {
struct device sc_dev;
plum_chipset_tag_t sc_pc;
bus_space_tag_t sc_csregt;
bus_space_tag_t sc_csiot;
bus_space_tag_t sc_csmemt;
int sc_irq;
int sc_pri;
};
struct cfattach plum_ca = {
sizeof(struct plum_softc), plum_match, plum_attach
};
plumreg_t plum_idcheck __P((bus_space_tag_t));
int
plum_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct cs_attach_args *ca = aux;
switch (plum_idcheck(ca->ca_csreg.cstag)) {
default:
return 0;
case PLUM2_1:
case PLUM2_2:
}
return 1;
}
void
plum_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct cs_attach_args *ca = aux;
struct plum_softc *sc = (void*)self;
plumreg_t reg;
sc->sc_csregt = ca->ca_csreg.cstag;
sc->sc_csiot = ca->ca_csio.cstag;
sc->sc_csmemt = ca->ca_csmem.cstag;
sc->sc_irq = ca->ca_irq1;
switch (plum_idcheck(sc->sc_csregt)) {
default:
printf(": unknown revision %#x\n", reg);
return;
case PLUM2_1:
printf(": Plum2 #1\n");
break;
case PLUM2_2:
printf(": Plum2 #2\n");
break;
}
if (!(sc->sc_pc = malloc(sizeof(struct plum_chipset_tag),
M_DEVBUF, M_NOWAIT))) {
panic("no memory");
}
memset(sc->sc_pc, 0, sizeof(struct plum_chipset_tag));
sc->sc_pc->pc_tc = ca->ca_tc;
/* Attach Plum devices */
/*
* interrupt, power/clock module is used by other plum module.
* attach first.
*/
sc->sc_pri = 2;
config_search(plum_search, self, plum_print);
/*
* Other plum module.
*/
sc->sc_pri = 1;
config_search(plum_search, self, plum_print);
}
plumreg_t
plum_idcheck(regt)
bus_space_tag_t regt;
{
bus_space_handle_t regh;
plumreg_t reg;
if (bus_space_map(regt, PLUM_ID_REGBASE,
PLUM_ID_REGSIZE, 0, &regh)) {
printf("ID register map failed\n");
return 0;
}
reg = plum_conf_read(regt, regh, PLUM_ID_REG);
bus_space_unmap(regt, regh, PLUM_ID_REGSIZE);
return reg;
}
int
plum_print(aux, pnp)
void *aux;
const char *pnp;
{
return pnp ? QUIET : UNCONF;
}
int
plum_search(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct plum_softc *sc = (void*)parent;
struct plum_attach_args pa;
pa.pa_pc = sc->sc_pc;
pa.pa_regt = sc->sc_csregt;
pa.pa_iot = sc->sc_csiot;
pa.pa_memt = sc->sc_csmemt;
pa.pa_irq = sc->sc_irq;
if ((*cf->cf_attach->ca_match)(parent, cf, &pa) == sc->sc_pri) {
config_attach(parent, cf, &pa, plum_print);
}
return 0;
}
plumreg_t
plum_conf_read(t, h, o)
bus_space_tag_t t;
bus_space_handle_t h;
int o;
{
plumreg_t reg;
reg = bus_space_read_4(t, h, o);
return reg;
}
void
plum_conf_write(t, h, o, v)
bus_space_tag_t t;
bus_space_handle_t h;
int o;
plumreg_t v;
{
bus_space_write_4(t, h, o, v);
}
void
plum_conf_register_intr(t, intrt)
plum_chipset_tag_t t;
void *intrt;
{
if (t->pc_intrt) {
panic("duplicate intrt");
}
t->pc_intrt = intrt;
}
void
plum_conf_register_power(t, powert)
plum_chipset_tag_t t;
void *powert;
{
if (t->pc_powert) {
panic("duplicate powert");
}
t->pc_powert = powert;
}