496 lines
11 KiB
C
496 lines
11 KiB
C
/* $NetBSD: tms320av110.c,v 1.18 2005/12/11 12:21:28 christos Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Ignatios Souvatzis.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Machine independent part of TMS320AV110 driver.
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*
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* Currently, only minimum support for audio output. For audio/video
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* synchronization, more is needed.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: tms320av110.c,v 1.18 2005/12/11 12:21:28 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/audioio.h>
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#include <dev/audio_if.h>
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#include <dev/ic/tms320av110reg.h>
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#include <dev/ic/tms320av110var.h>
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#include <machine/bus.h>
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int tav_open(void *, int);
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void tav_close(void *);
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int tav_drain(void *);
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int tav_query_encoding(void *, struct audio_encoding *);
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int tav_set_params(void *, int, int, audio_params_t *, audio_params_t *,
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stream_filter_list_t *, stream_filter_list_t *);
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int tav_round_blocksize(void *, int, int, const audio_params_t *);
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int tav_init_output(void *, void *, int);
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int tav_start_output(void *, void *, int, void (*)(void *), void *);
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int tav_start_input(void *, void *, int, void (*)(void *), void *);
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int tav_halt_output(void *);
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int tav_halt_input(void *);
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int tav_speaker_ctl(void *, int);
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int tav_getdev(void *, struct audio_device *);
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int tav_setfd(void *, int);
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int tav_set_port(void *, mixer_ctrl_t *);
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int tav_get_port(void *, mixer_ctrl_t *);
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int tav_query_devinfo(void *, mixer_devinfo_t *);
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int tav_get_props(void *);
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const struct audio_hw_if tav_audio_if = {
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tav_open,
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tav_close,
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0 /* tav_drain*/, /* optional */
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tav_query_encoding,
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tav_set_params,
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tav_round_blocksize,
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0 /* commit_settings */, /* optional */
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tav_init_output, /* optional */
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0 /* tav_init_input */, /* optional */
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tav_start_output,
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tav_start_input,
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tav_halt_output,
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tav_halt_input,
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tav_speaker_ctl, /* optional */
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tav_getdev,
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0 /* setfd */, /* optional */
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tav_set_port,
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tav_get_port,
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tav_query_devinfo,
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0 /* alloc */, /* optional */
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0 /* free */, /* optional */
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0 /* round_buffersize */, /* optional */
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0 /* mappage */, /* optional */
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tav_get_props,
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0 /* dev_ioctl */ /* optional */
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};
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void
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tms320av110_attach_mi(struct tav_softc *sc)
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{
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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tav_write_byte(iot, ioh, TAV_RESET, 1);
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while (tav_read_byte(iot, ioh, TAV_RESET))
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delay(250);
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tav_write_byte(iot, ioh, TAV_PCM_ORD, sc->sc_pcm_ord);
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tav_write_byte(iot, ioh, TAV_PCM_18, sc->sc_pcm_18);
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tav_write_byte(iot, ioh, TAV_DIF, sc->sc_dif);
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tav_write_byte(iot, ioh, TAV_PCM_DIV, sc->sc_pcm_div);
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printf(": chip rev. %d, %d bytes buffer\n",
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tav_read_byte(iot, ioh, TAV_VERSION),
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TAV_DRAM_SIZE(tav_read_byte(iot, ioh, TAV_DRAM_EXT)));
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tav_write_byte(iot, ioh, TAV_AUD_ID_EN, 0);
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tav_write_byte(iot, ioh, TAV_SKIP, 0);
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tav_write_byte(iot, ioh, TAV_REPEAT, 0);
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tav_write_byte(iot, ioh, TAV_MUTE, 0);
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tav_write_byte(iot, ioh, TAV_PLAY, 1);
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tav_write_byte(iot, ioh, TAV_SYNC_ECM, 0);
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tav_write_byte(iot, ioh, TAV_CRC_ECM, 0);
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tav_write_byte(iot, ioh, TAV_ATTEN_L, 0);
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tav_write_byte(iot, ioh, TAV_ATTEN_R, 0);
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tav_write_short(iot, ioh, TAV_FREE_FORM, 0);
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tav_write_byte(iot, ioh, TAV_SIN_EN, 0);
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tav_write_byte(iot, ioh, TAV_SYNC_ECM, TAV_ECM_REPEAT);
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tav_write_byte(iot, ioh, TAV_CRC_ECM, TAV_ECM_REPEAT);
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audio_attach_mi(&tav_audio_if, sc, &sc->sc_dev);
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}
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int
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tms320av110_intr(void *p)
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{
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struct tav_softc *sc;
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uint16_t intlist;
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sc = p;
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intlist = tav_read_short(sc->sc_iot, sc->sc_ioh, TAV_INTR)
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/* & tav_read_short(sc->sc_iot, sc->sc_ioh, TAV_INTR_EN)*/;
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if (!intlist)
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return 0;
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/* ack now, so that we don't miss later interrupts */
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if (sc->sc_intack)
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(sc->sc_intack)(sc);
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if (intlist & TAV_INTR_LOWWATER) {
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(*sc->sc_intr)(sc->sc_intrarg);
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}
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if (intlist & TAV_INTR_PCM_OUTPUT_UNDERFLOW) {
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wakeup(sc);
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}
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return 1;
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}
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struct audio_encoding tav_encodings[] = {
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{0, AudioEmpeg_l2_stream, AUDIO_ENCODING_MPEG_L2_STREAM, 1, 0,},
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{1, AudioEmpeg_l2_packets, AUDIO_ENCODING_MPEG_L2_PACKETS, 1, 0,},
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{2, AudioEmpeg_l2_system, AUDIO_ENCODING_MPEG_L2_SYSTEM, 1, 0,},
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{3, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16, 0,},
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};
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int
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tav_open(void *hdl, int flags)
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{
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/* dummy */
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return 0;
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}
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void
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tav_close(void *hdl)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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/* re"start" chip, also clears interrupts and interrupt enable */
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tav_write_short(iot, ioh, TAV_INTR_EN, 0);
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if (sc->sc_intack)
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(*sc->sc_intack)(sc);
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}
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int
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tav_drain(void *hdl)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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u_int16_t mask;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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/*
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* tsleep waiting for underflow interrupt.
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*/
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if (tav_read_short(iot, ioh, TAV_BUFF)) {
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mask = tav_read_short(iot, ioh, TAV_INTR_EN);
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tav_write_short(iot, ioh, TAV_INTR_EN,
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mask|TAV_INTR_PCM_OUTPUT_UNDERFLOW);
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/* still more than zero? */
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if (tav_read_short(iot, ioh, TAV_BUFF))
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(void)tsleep(sc, PCATCH, "tavdrain", 32*hz);
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/* can be really that long for mpeg */
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mask = tav_read_short(iot, ioh, TAV_INTR_EN);
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tav_write_short(iot, ioh, TAV_INTR_EN,
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mask & ~TAV_INTR_PCM_OUTPUT_UNDERFLOW);
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}
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return 0;
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}
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int
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tav_query_encoding(void *hdl, struct audio_encoding *ae)
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{
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struct tav_softc *sc;
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sc = hdl;
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if (ae->index >= sizeof(tav_encodings)/sizeof(*ae))
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return EINVAL;
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*ae = tav_encodings[ae->index];
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return 0;
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}
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int
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tav_start_input(void *hdl, void *block, int bsize,
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void (*intr)(void *), void *intrarg)
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{
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return ENOTTY;
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}
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int
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tav_halt_input(void *hdl)
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{
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return ENOTTY;
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}
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int
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tav_start_output(void *hdl, void *block, int bsize,
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void (*intr)(void *), void *intrarg)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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uint8_t *ptr;
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int count;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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ptr = block;
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count = bsize;
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sc->sc_intr = intr;
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sc->sc_intrarg = intrarg;
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bus_space_write_multi_1(iot, ioh, TAV_DATAIN, ptr, count);
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tav_write_short(iot, ioh, TAV_INTR_EN, TAV_INTR_LOWWATER);
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return 0;
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}
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int
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tav_init_output(void *hdl, void *buffer, int size)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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tav_write_byte(iot, ioh, TAV_PLAY, 1);
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tav_write_byte(iot, ioh, TAV_MUTE, 0);
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return 0;
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}
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int
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tav_halt_output(void *hdl)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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tav_write_byte(iot, ioh, TAV_PLAY, 0);
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return 0;
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}
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int
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tav_getdev(void *hdl, struct audio_device *ret)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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strlcpy(ret->name, "tms320av110", sizeof(ret->name));
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/* guaranteed to be <= 4 in length */
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snprintf(ret->version, sizeof(ret->version), "%u",
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tav_read_byte(iot, ioh, TAV_VERSION));
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strlcpy(ret->config, sc->sc_dev.dv_xname, sizeof(ret->config));
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return 0;
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}
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int
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tav_round_blocksize(void *hdl, int size, int mode, const audio_params_t *param)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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int maxhalf;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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maxhalf = TAV_DRAM_HSIZE(tav_read_byte(iot, ioh, TAV_DRAM_EXT));
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if (size > maxhalf)
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size = maxhalf;
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/* XXX should round to 128 bytes limits for audio bypass */
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size &= ~3;
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tav_write_short(iot, ioh, TAV_BALE_LIM, size/8);
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/* the buffer limits are in units of 4 bytes */
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return (size);
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}
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int
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tav_get_props(void *hdl)
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{
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return 0;
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}
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int
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tav_set_params(void *hdl, int setmode, int usemode, audio_params_t *p,
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audio_params_t *r, stream_filter_list_t *pfil, stream_filter_list_t *rfil)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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if (!(setmode & AUMODE_PLAY))
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return 0;
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if (p->encoding == AUDIO_ENCODING_ULAW)
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p->encoding = AUDIO_ENCODING_MPEG_L2_STREAM;
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switch(p->encoding) {
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default:
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return EINVAL;
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case AUDIO_ENCODING_SLINEAR_BE:
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/* XXX: todo: add 8bit and mono using software */
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p->precision = 16;
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p->channels = 2;
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/* XXX: this might depend on the specific board.
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should be handled by the backend */
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p->sample_rate = 44100;
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bus_space_write_1(iot, ioh, TAV_STR_SEL,
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TAV_STR_SEL_AUDIO_BYPASS);
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break;
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/* XXX: later: add ULINEAR, and LE using software encoding */
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case AUDIO_ENCODING_MPEG_L1_STREAM:
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/* FALLTHROUGH */
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case AUDIO_ENCODING_MPEG_L2_STREAM:
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bus_space_write_1(iot, ioh, TAV_STR_SEL,
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TAV_STR_SEL_MPEG_AUDIO_STREAM);
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p->sample_rate = 44100;
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p->precision = 1;
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break;
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case AUDIO_ENCODING_MPEG_L1_PACKETS:
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/* FALLTHROUGH */
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case AUDIO_ENCODING_MPEG_L2_PACKETS:
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bus_space_write_1(iot, ioh, TAV_STR_SEL,
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TAV_STR_SEL_MPEG_AUDIO_PACKETS);
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p->sample_rate = 44100;
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p->precision = 1;
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break;
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case AUDIO_ENCODING_MPEG_L1_SYSTEM:
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/* FALLTHROUGH */
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case AUDIO_ENCODING_MPEG_L2_SYSTEM:
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bus_space_write_1(iot, ioh, TAV_STR_SEL,
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TAV_STR_SEL_MPEG_SYSTEM_STREAM);
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p->sample_rate = 44100;
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p->precision = 1;
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break;
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}
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tav_write_byte(iot, ioh, TAV_RESTART, 1);
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do {
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delay(10);
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} while (tav_read_byte(iot, ioh, TAV_RESTART));
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return 0;
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}
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int
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tav_set_port(void *hdl, mixer_ctrl_t *mc)
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{
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struct tav_softc *sc;
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sc = hdl;
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/* dummy */
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return 0;
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}
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int
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tav_get_port(void *hdl, mixer_ctrl_t *mc)
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{
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struct tav_softc *sc;
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sc = hdl;
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/* dummy */
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return 0;
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}
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int
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tav_query_devinfo(void *hdl, mixer_devinfo_t *di)
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{
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return ENXIO;
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}
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int
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tav_speaker_ctl(void *hdl, int value)
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{
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struct tav_softc *sc;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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sc = hdl;
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iot = sc->sc_iot;
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ioh = sc->sc_ioh;
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tav_write_byte(iot, ioh, TAV_MUTE, !value);
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return 0;
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}
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