NetBSD/sys/dev/ic/tms320av110.c

530 lines
12 KiB
C

/* $NetBSD: tms320av110.c,v 1.11 2001/11/15 09:48:08 lukem 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 1.11 2001/11/15 09:48:08 lukem 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 <machine/bus.h>
int tav_open __P((void*, int));
void tav_close __P((void *));
int tav_drain __P((void *));
int tav_query_encoding __P((void *, struct audio_encoding *));
int tav_set_params __P((void *, int, int, struct audio_params *,
struct audio_params *));
int tav_round_blocksize __P((void *, int));
int tav_init_output __P((void *, void *, int));
int tav_start_output __P((void *, void *, int, void (*)(void *), void *));
int tav_start_input __P((void *, void *, int, void (*)(void *), void *));
int tav_halt_output __P((void *));
int tav_halt_input __P((void *));
int tav_speaker_ctl __P((void *, int));
int tav_getdev __P((void *, struct audio_device *));
int tav_setfd __P((void *, int));
int tav_set_port __P((void *, mixer_ctrl_t *));
int tav_get_port __P((void *, mixer_ctrl_t *));
int tav_query_devinfo __P((void *, mixer_devinfo_t *));
int tav_get_props __P((void *));
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(sc)
struct tav_softc *sc;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t 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(p)
void *p;
{
struct tav_softc *sc = p;
u_int16_t intlist;
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 interupts */
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(hdl, flags)
void *hdl;
int flags;
{
struct tav_softc *sc;
sc = hdl;
/* dummy */
return 0;
}
void
tav_close(hdl)
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 interupts and interupt enable */
tav_write_short(iot, ioh, TAV_INTR_EN, 0);
if (sc->sc_intack)
(*sc->sc_intack)(sc);
}
int
tav_drain(hdl)
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 interupt.
*/
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(hdl, ae)
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(hdl, block, bsize, intr, intrarg)
void *hdl;
void *block;
int bsize;
void (*intr) __P((void *));
void *intrarg;
{
return ENOTTY;
}
int
tav_halt_input(hdl)
void *hdl;
{
return ENOTTY;
}
int
tav_start_output(hdl, block, bsize, intr, intrarg)
void *hdl;
void *block;
int bsize;
void (*intr) __P((void *));
void *intrarg;
{
struct tav_softc *sc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
u_int8_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(hdl, buffer, size)
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(hdl)
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(hdl, ret)
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;
strncpy(ret->name, "tms320av110", MAX_AUDIO_DEV_LEN);
sprintf(ret->version, "%u", /* guaranteed to be <= 4 in length */
tav_read_byte(iot, ioh, TAV_VERSION));
strncpy(ret->config, sc->sc_dev.dv_xname, MAX_AUDIO_DEV_LEN);
return 0;
}
int
tav_round_blocksize(hdl, size)
void *hdl;
int size;
{
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(hdl)
void *hdl;
{
return 0;
}
int
tav_set_params(hdl, setmode, usemode, p, r)
void *hdl;
int setmode, usemode;
struct audio_params *p, *r;
{
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(hdl, mc)
void *hdl;
mixer_ctrl_t *mc;
{
struct tav_softc *sc;
sc = hdl;
/* dummy */
return 0;
}
int
tav_get_port(hdl, mc)
void *hdl;
mixer_ctrl_t *mc;
{
struct tav_softc *sc;
sc = hdl;
/* dummy */
return 0;
}
int
tav_query_devinfo(hdl, di)
void *hdl;
mixer_devinfo_t *di;
{
return ENXIO;
}
int
tav_speaker_ctl(hdl, value)
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;
}