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/* $OpenBSD: onyx.c,v 1.7 2007/04/23 16:27:20 deraadt Exp $ */
/*-
* Copyright (c) 2005 Tsubai Masanari. 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.
* 3. The name of the author 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 ``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.
*/
/*
* http://focus.ti.com/docs/prod/folders/print/pcm3052.html
*
* Datasheet is available from
* http://focus.ti.com/docs/prod/folders/print/pcm3052a.html
*/
#include <sys/param.h>
#include <sys/audioio.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <dev/audio_if.h>
#include <dev/ofw/openfirm.h>
#include <macppc/dev/dbdma.h>
#include <machine/autoconf.h>
#include <macppc/dev/i2svar.h>
#include <macppc/dev/kiicvar.h>
#ifdef ONYX_DEBUG
# define DPRINTF printf
#else
# define DPRINTF while (0) printf
#endif
/* XXX */
#define PCM3052_I2C_ADDR 0x8c
/* PCM3052 registers */
#define PCM3052_REG_LEFT_VOLUME 0x41
#define PCM3052_REG_RIGHT_VOLUME 0x42
/* XXX */
#define onyx_softc i2s_softc
/* XXX */
void kiic_setmode(struct kiic_softc *, u_int, u_int);
int kiic_write(struct device *, int, int, const void *, int);
int onyx_getdev(void *, struct audio_device *);
int onyx_match(struct device *, void *, void *);
void onyx_attach(struct device *, struct device *, void *);
void onyx_defer(struct device *);
void onyx_set_volume(struct onyx_softc *, int, int);
struct cfattach onyx_ca = {
sizeof(struct onyx_softc), onyx_match, onyx_attach
};
struct cfdriver onyx_cd = {
NULL, "onyx", DV_DULL
};
struct audio_hw_if onyx_hw_if = {
i2s_open,
i2s_close,
NULL,
i2s_query_encoding,
i2s_set_params,
i2s_round_blocksize,
NULL,
NULL,
NULL,
NULL,
NULL,
i2s_halt_output,
i2s_halt_input,
NULL,
onyx_getdev,
NULL,
i2s_set_port,
i2s_get_port,
i2s_query_devinfo,
i2s_allocm,
NULL,
i2s_round_buffersize,
i2s_mappage,
i2s_get_props,
i2s_trigger_output,
i2s_trigger_input,
};
struct audio_device onyx_device = {
"ONYX",
"",
"onyx"
};
int
onyx_match(struct device *parent, void *match, void *aux)
{
struct confargs *ca = aux;
int soundbus, soundchip, soundcodec;
int32_t layout = 0;
if (strcmp(ca->ca_name, "i2s") != 0)
return (0);
if ((soundbus = OF_child(ca->ca_node)) == 0 ||
(soundchip = OF_child(soundbus)) == 0)
return (0);
if (OF_getprop(soundchip, "platform-onyx-codec-ref",
&soundcodec, sizeof soundcodec) == sizeof soundcodec)
return (1);
/*
* Apple really messed up. First and second generation iMac
* G5 (PowerMac8,1 and PowerMac8,2) have a "deq" i2c device
* listed in the OF device tree, which is a telltale sign of
* snapper(4). But in reality that chip isn't there. So we
* match on "layout-id" instead.
*/
if (OF_getprop(soundchip, "layout-id", &layout, sizeof layout) &&
(layout == 0x2d || layout == 0x56))
return (1);
return (0);
}
void
onyx_attach(struct device *parent, struct device *self, void *aux)
{
struct onyx_softc *sc = (struct onyx_softc *)self;
sc->sc_setvolume = onyx_set_volume;
i2s_attach(parent, sc, aux);
config_defer(self, onyx_defer);
}
void
onyx_defer(struct device *dev)
{
struct onyx_softc *sc = (struct onyx_softc *)dev;
struct device *dv;
TAILQ_FOREACH(dv, &alldevs, dv_list)
if (strncmp(dv->dv_xname, "kiic", 4) == 0 &&
strncmp(dv->dv_parent->dv_xname, "macobio", 7) == 0)
sc->sc_i2c = dv;
if (sc->sc_i2c == NULL) {
printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname);
return;
}
/* XXX If i2c has failed to attach, what should we do? */
audio_attach_mi(&onyx_hw_if, sc, &sc->sc_dev);
deq_reset(sc);
onyx_set_volume(sc, 192, 192);
}
int
onyx_getdev(void *h, struct audio_device *retp)
{
*retp = onyx_device;
return (0);
}
void
onyx_set_volume(struct onyx_softc *sc, int left, int right)
{
u_int8_t data;
sc->sc_vol_l = left;
sc->sc_vol_r = right;
kiic_setmode(sc->sc_i2c, I2C_STDSUBMODE, 0);
data = 128 + (left >> 1);
kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
PCM3052_REG_LEFT_VOLUME, &data, 1);
data = 128 + (right >> 1);
kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
PCM3052_REG_RIGHT_VOLUME, &data, 1);
}
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