NetBSD-5.0.2/sys/dev/ic/tms320av110.c
/* $NetBSD: tms320av110.c,v 1.21 2008/04/28 20:23:51 martin Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ignatios Souvatzis.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Machine independent part of TMS320AV110 driver.
*
* Currently, only minimum support for audio output. For audio/video
* synchronization, more is needed.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tms320av110.c,v 1.21 2008/04/28 20:23:51 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/ic/tms320av110reg.h>
#include <dev/ic/tms320av110var.h>
#include <sys/bus.h>
int tav_open(void *, int);
void tav_close(void *);
int tav_drain(void *);
int tav_query_encoding(void *, struct audio_encoding *);
int tav_set_params(void *, int, int, audio_params_t *, audio_params_t *,
stream_filter_list_t *, stream_filter_list_t *);
int tav_round_blocksize(void *, int, int, const audio_params_t *);
int tav_init_output(void *, void *, int);
int tav_start_output(void *, void *, int, void (*)(void *), void *);
int tav_start_input(void *, void *, int, void (*)(void *), void *);
int tav_halt_output(void *);
int tav_halt_input(void *);
int tav_speaker_ctl(void *, int);
int tav_getdev(void *, struct audio_device *);
int tav_setfd(void *, int);
int tav_set_port(void *, mixer_ctrl_t *);
int tav_get_port(void *, mixer_ctrl_t *);
int tav_query_devinfo(void *, mixer_devinfo_t *);
int tav_get_props(void *);
const struct audio_hw_if tav_audio_if = {
tav_open,
tav_close,
0 /* tav_drain*/, /* optional */
tav_query_encoding,
tav_set_params,
tav_round_blocksize,
0 /* commit_settings */, /* optional */
tav_init_output, /* optional */
0 /* tav_init_input */, /* optional */
tav_start_output,
tav_start_input,
tav_halt_output,
tav_halt_input,
tav_speaker_ctl, /* optional */
tav_getdev,
0 /* setfd */, /* optional */
tav_set_port,
tav_get_port,
tav_query_devinfo,
0 /* alloc */, /* optional */
0 /* free */, /* optional */
0 /* round_buffersize */, /* optional */
0 /* mappage */, /* optional */
tav_get_props,
0 /* dev_ioctl */ /* optional */
};
void
tms320av110_attach_mi(struct tav_softc *sc)
{
bus_space_tag_t iot;
bus_space_handle_t ioh;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
tav_write_byte(iot, ioh, TAV_RESET, 1);
while (tav_read_byte(iot, ioh, TAV_RESET))
delay(250);
tav_write_byte(iot, ioh, TAV_PCM_ORD, sc->sc_pcm_ord);
tav_write_byte(iot, ioh, TAV_PCM_18, sc->sc_pcm_18);
tav_write_byte(iot, ioh, TAV_DIF, sc->sc_dif);
tav_write_byte(iot, ioh, TAV_PCM_DIV, sc->sc_pcm_div);
printf(": chip rev. %d, %d bytes buffer\n",
tav_read_byte(iot, ioh, TAV_VERSION),
TAV_DRAM_SIZE(tav_read_byte(iot, ioh, TAV_DRAM_EXT)));
tav_write_byte(iot, ioh, TAV_AUD_ID_EN, 0);
tav_write_byte(iot, ioh, TAV_SKIP, 0);
tav_write_byte(iot, ioh, TAV_REPEAT, 0);
tav_write_byte(iot, ioh, TAV_MUTE, 0);
tav_write_byte(iot, ioh, TAV_PLAY, 1);
tav_write_byte(iot, ioh, TAV_SYNC_ECM, 0);
tav_write_byte(iot, ioh, TAV_CRC_ECM, 0);
tav_write_byte(iot, ioh, TAV_ATTEN_L, 0);
tav_write_byte(iot, ioh, TAV_ATTEN_R, 0);
tav_write_short(iot, ioh, TAV_FREE_FORM, 0);
tav_write_byte(iot, ioh, TAV_SIN_EN, 0);
tav_write_byte(iot, ioh, TAV_SYNC_ECM, TAV_ECM_REPEAT);
tav_write_byte(iot, ioh, TAV_CRC_ECM, TAV_ECM_REPEAT);
audio_attach_mi(&tav_audio_if, sc, &sc->sc_dev);
}
int
tms320av110_intr(void *p)
{
struct tav_softc *sc;
uint16_t intlist;
sc = p;
intlist = tav_read_short(sc->sc_iot, sc->sc_ioh, TAV_INTR)
/* & tav_read_short(sc->sc_iot, sc->sc_ioh, TAV_INTR_EN)*/;
if (!intlist)
return 0;
/* ack now, so that we don't miss later interrupts */
if (sc->sc_intack)
(sc->sc_intack)(sc);
if (intlist & TAV_INTR_LOWWATER) {
(*sc->sc_intr)(sc->sc_intrarg);
}
if (intlist & TAV_INTR_PCM_OUTPUT_UNDERFLOW) {
wakeup(sc);
}
return 1;
}
struct audio_encoding tav_encodings[] = {
{0, AudioEmpeg_l2_stream, AUDIO_ENCODING_MPEG_L2_STREAM, 1, 0,},
{1, AudioEmpeg_l2_packets, AUDIO_ENCODING_MPEG_L2_PACKETS, 1, 0,},
{2, AudioEmpeg_l2_system, AUDIO_ENCODING_MPEG_L2_SYSTEM, 1, 0,},
{3, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16, 0,},
};
int
tav_open(void *hdl, int flags)
{
/* dummy */
return 0;
}
void
tav_close(void *hdl)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
/* re"start" chip, also clears interrupts and interrupt enable */
tav_write_short(iot, ioh, TAV_INTR_EN, 0);
if (sc->sc_intack)
(*sc->sc_intack)(sc);
}
int
tav_drain(void *hdl)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
u_int16_t mask;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
/*
* tsleep waiting for underflow interrupt.
*/
if (tav_read_short(iot, ioh, TAV_BUFF)) {
mask = tav_read_short(iot, ioh, TAV_INTR_EN);
tav_write_short(iot, ioh, TAV_INTR_EN,
mask|TAV_INTR_PCM_OUTPUT_UNDERFLOW);
/* still more than zero? */
if (tav_read_short(iot, ioh, TAV_BUFF))
(void)tsleep(sc, PCATCH, "tavdrain", 32*hz);
/* can be really that long for mpeg */
mask = tav_read_short(iot, ioh, TAV_INTR_EN);
tav_write_short(iot, ioh, TAV_INTR_EN,
mask & ~TAV_INTR_PCM_OUTPUT_UNDERFLOW);
}
return 0;
}
int
tav_query_encoding(void *hdl, struct audio_encoding *ae)
{
struct tav_softc *sc;
sc = hdl;
if (ae->index >= sizeof(tav_encodings)/sizeof(*ae))
return EINVAL;
*ae = tav_encodings[ae->index];
return 0;
}
int
tav_start_input(void *hdl, void *block, int bsize,
void (*intr)(void *), void *intrarg)
{
return ENOTTY;
}
int
tav_halt_input(void *hdl)
{
return ENOTTY;
}
int
tav_start_output(void *hdl, void *block, int bsize,
void (*intr)(void *), void *intrarg)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
uint8_t *ptr;
int count;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
ptr = block;
count = bsize;
sc->sc_intr = intr;
sc->sc_intrarg = intrarg;
bus_space_write_multi_1(iot, ioh, TAV_DATAIN, ptr, count);
tav_write_short(iot, ioh, TAV_INTR_EN, TAV_INTR_LOWWATER);
return 0;
}
int
tav_init_output(void *hdl, void *buffer, int size)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
tav_write_byte(iot, ioh, TAV_PLAY, 1);
tav_write_byte(iot, ioh, TAV_MUTE, 0);
return 0;
}
int
tav_halt_output(void *hdl)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
tav_write_byte(iot, ioh, TAV_PLAY, 0);
return 0;
}
int
tav_getdev(void *hdl, struct audio_device *ret)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
strlcpy(ret->name, "tms320av110", sizeof(ret->name));
/* guaranteed to be <= 4 in length */
snprintf(ret->version, sizeof(ret->version), "%u",
tav_read_byte(iot, ioh, TAV_VERSION));
strlcpy(ret->config, device_xname(&sc->sc_dev), sizeof(ret->config));
return 0;
}
int
tav_round_blocksize(void *hdl, int size, int mode, const audio_params_t *param)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
int maxhalf;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
maxhalf = TAV_DRAM_HSIZE(tav_read_byte(iot, ioh, TAV_DRAM_EXT));
if (size > maxhalf)
size = maxhalf;
/* XXX should round to 128 bytes limits for audio bypass */
size &= ~3;
tav_write_short(iot, ioh, TAV_BALE_LIM, size/8);
/* the buffer limits are in units of 4 bytes */
return (size);
}
int
tav_get_props(void *hdl)
{
return 0;
}
int
tav_set_params(void *hdl, int setmode, int usemode, audio_params_t *p,
audio_params_t *r, stream_filter_list_t *pfil, stream_filter_list_t *rfil)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
if (!(setmode & AUMODE_PLAY))
return 0;
if (p->encoding == AUDIO_ENCODING_ULAW)
p->encoding = AUDIO_ENCODING_MPEG_L2_STREAM;
switch(p->encoding) {
default:
return EINVAL;
case AUDIO_ENCODING_SLINEAR_BE:
/* XXX: todo: add 8bit and mono using software */
p->precision = 16;
p->channels = 2;
/* XXX: this might depend on the specific board.
should be handled by the backend */
p->sample_rate = 44100;
bus_space_write_1(iot, ioh, TAV_STR_SEL,
TAV_STR_SEL_AUDIO_BYPASS);
break;
/* XXX: later: add ULINEAR, and LE using software encoding */
case AUDIO_ENCODING_MPEG_L1_STREAM:
/* FALLTHROUGH */
case AUDIO_ENCODING_MPEG_L2_STREAM:
bus_space_write_1(iot, ioh, TAV_STR_SEL,
TAV_STR_SEL_MPEG_AUDIO_STREAM);
p->sample_rate = 44100;
p->precision = 1;
break;
case AUDIO_ENCODING_MPEG_L1_PACKETS:
/* FALLTHROUGH */
case AUDIO_ENCODING_MPEG_L2_PACKETS:
bus_space_write_1(iot, ioh, TAV_STR_SEL,
TAV_STR_SEL_MPEG_AUDIO_PACKETS);
p->sample_rate = 44100;
p->precision = 1;
break;
case AUDIO_ENCODING_MPEG_L1_SYSTEM:
/* FALLTHROUGH */
case AUDIO_ENCODING_MPEG_L2_SYSTEM:
bus_space_write_1(iot, ioh, TAV_STR_SEL,
TAV_STR_SEL_MPEG_SYSTEM_STREAM);
p->sample_rate = 44100;
p->precision = 1;
break;
}
tav_write_byte(iot, ioh, TAV_RESTART, 1);
do {
delay(10);
} while (tav_read_byte(iot, ioh, TAV_RESTART));
return 0;
}
int
tav_set_port(void *hdl, mixer_ctrl_t *mc)
{
struct tav_softc *sc;
sc = hdl;
/* dummy */
return 0;
}
int
tav_get_port(void *hdl, mixer_ctrl_t *mc)
{
struct tav_softc *sc;
sc = hdl;
/* dummy */
return 0;
}
int
tav_query_devinfo(void *hdl, mixer_devinfo_t *di)
{
return ENXIO;
}
int
tav_speaker_ctl(void *hdl, int value)
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
sc = hdl;
iot = sc->sc_iot;
ioh = sc->sc_ioh;
tav_write_byte(iot, ioh, TAV_MUTE, !value);
return 0;
}