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/* $OpenBSD: maci2c.c,v 1.3 2005/11/16 00:09:31 deraadt Exp $ */
/*
* Copyright (c) 2005 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/i2c/i2cvar.h>
#include <dev/ofw/openfirm.h>
#include <arch/macppc/dev/maci2cvar.h>
int maciic_match(struct device *, void *, void *);
void maciic_attach(struct device *, struct device *, void *);
int maciic_print(void *, const char *);
struct cfattach maciic_ca = {
sizeof (struct device), maciic_match, maciic_attach
};
struct cfdriver maciic_cd = {
NULL, "maciic", DV_DULL
};
int
maciic_match(struct device *parent, void *cf, void *aux)
{
return (1);
}
void
maciic_attach(struct device *parent, struct device *self, void *aux)
{
struct maci2cbus_attach_args *iba = aux;
struct i2c_attach_args ia;
char name[32], compat[32];
u_int32_t reg;
int node;
printf("\n");
for (node = OF_child(iba->iba_node); node; node = OF_peer(node)) {
if (OF_getprop(node, "reg", ®, sizeof reg) != sizeof reg &&
OF_getprop(node, "i2c-address", ®, sizeof reg) != sizeof reg)
continue;
ia.ia_tag = iba->iba_tag;
ia.ia_addr = (reg >> 1);
ia.ia_name = NULL;
ia.ia_compat = NULL;
memset(compat, 0, sizeof compat);
memset(name, 0, sizeof name);
if (OF_getprop(node, "name", &name,
sizeof name))
ia.ia_name = name;
if (OF_getprop(node, "compatible", &compat,
sizeof compat))
ia.ia_compat = compat;
config_found(self, &ia, maciic_print);
}
}
int
maciic_print(void *aux, const char *pnp)
{
struct i2c_attach_args *ia = aux;
if (pnp != NULL) {
printf("%s at %s", ia->ia_name, pnp);
}
printf(" addr 0x%x", ia->ia_addr);
return (UNCONF);
}
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