 @@ -1,513 +1,507 @@
-/*	$NetBSD: tms320av110.c,v 1.23 2012/10/27 17:18:23 chs Exp $	*/
+/*	$NetBSD: tms320av110.c,v 1.23.12.1 2020/03/08 09:15:34 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 1.23 2012/10/27 17:18:23 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tms320av110.c,v 1.23.12.1 2020/03/08 09:15:34 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 *);
 void tav_get_locks(void *, kmutex_t **, kmutex_t **);
 const struct audio_hw_if tav_audio_if = {
 	tav_open,
 	tav_close,
 /* tav_drain*/,		/* optional */
 	tav_query_encoding,
 	tav_set_params,
 	tav_round_blocksize,
 /* commit_settings */,	/* optional */
 	tav_init_output,		/* optional */
 /* tav_init_input */,		/* optional */
 	tav_start_output,
 	tav_start_input,
 	tav_halt_output,
 	tav_halt_input,
 	tav_speaker_ctl,		/* optional */
 	tav_getdev,
 /* setfd */,			/* optional */
 	tav_set_port,
 	tav_get_port,
 	tav_query_devinfo,
 /* alloc */,			/* optional */
 /* free */,			/* optional */
 /* round_buffersize */,	/* optional */
 /* mappage */,		/* optional */
 	tav_get_props,
 , /* trigger_output */
 , /* trigger_input */
 , /* dev_ioctl */		/* optional */
 	tav_get_locks,
 };
 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;
 	mutex_spin_enter(&sc->sc_intr_lock);
 	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) {
 		 cv_broadcast(&sc->sc_cv);
+	}
 	mutex_spin_exit(&sc->sc_intr_lock);
 	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;
 	mutex_spin_enter(&sc->sc_intr_lock);
 	/*
 	 * wait 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)cv_timedwait_sig(&sc->sc_cv,
 			    &sc->sc_intr_lock, 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);
+	}
 	mutex_spin_exit(&sc->sc_intr_lock);
 	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;
+}
 void
 tav_get_locks(void *hdl, kmutex_t **intr, kmutex_t **thread)
+{
 	struct tav_softc *sc;
 	sc = hdl;
 	*intr = &sc->sc_intr_lock;
 	*thread = &sc->sc_lock;
+}
 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;
+}