532 lines
13 KiB
C
532 lines
13 KiB
C
/* $NetBSD: audioamd.c,v 1.21 2005/12/11 12:19:05 christos Exp $ */
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/* NetBSD: am7930_sparc.c,v 1.44 1999/03/14 22:29:00 jonathan Exp */
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/*
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* Copyright (c) 1995 Rolf Grossmann
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* All rights reserved.
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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 Rolf Grossmann.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: audioamd.c,v 1.21 2005/12/11 12:19:05 christos Exp $");
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#include "audio.h"
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#if NAUDIO > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <machine/autoconf.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/am7930reg.h>
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#include <dev/ic/am7930var.h>
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#include <sparc/dev/audioamdvar.h>
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#define AUDIO_ROM_NAME "audio"
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#ifdef AUDIO_DEBUG
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#define DPRINTF(x) if (am7930debug) printf x
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#define DPRINTFN(n,x) if (am7930debug>(n)) printf x
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif /* AUDIO_DEBUG */
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/* interrupt interfaces */
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int am7930hwintr(void *);
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struct auio *auiop;
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void am7930swintr(void *);
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/* from amd7930intr.s: */
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void amd7930_trap(void);
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/*
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* interrupt-handler status
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*/
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struct am7930_intrhand {
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int (*ih_fun)(void *);
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void *ih_arg;
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};
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struct audioamd_softc {
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struct am7930_softc sc_am7930; /* glue to MI code */
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bus_space_tag_t sc_bt; /* bus cookie */
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bus_space_handle_t sc_bh; /* device registers */
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struct am7930_intrhand sc_ih; /* interrupt vector (hw or sw) */
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void (*sc_rintr)(void*); /* input completion intr handler */
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void *sc_rarg; /* arg for sc_rintr() */
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void (*sc_pintr)(void*); /* output completion intr handler */
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void *sc_parg; /* arg for sc_pintr() */
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/* sc_au is special in that the hardware interrupt handler uses it */
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struct auio sc_au; /* recv and xmit buffers, etc */
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#define sc_intrcnt sc_au.au_intrcnt /* statistics */
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void *sc_sicookie; /* softintr(9) cookie */
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};
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void audioamd_mainbus_attach(struct device *, struct device *, void *);
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int audioamd_mainbus_match(struct device *, struct cfdata *, void *);
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void audioamd_obio_attach(struct device *, struct device *, void *);
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int audioamd_obio_match(struct device *, struct cfdata *, void *);
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void audioamd_sbus_attach(struct device *, struct device *, void *);
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int audioamd_sbus_match(struct device *, struct cfdata *, void *);
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void audioamd_attach(struct audioamd_softc *, int);
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CFATTACH_DECL(audioamd_mainbus, sizeof(struct audioamd_softc),
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audioamd_mainbus_match, audioamd_mainbus_attach, NULL, NULL);
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CFATTACH_DECL(audioamd_obio, sizeof(struct audioamd_softc),
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audioamd_obio_match, audioamd_obio_attach, NULL, NULL);
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CFATTACH_DECL(audioamd_sbus, sizeof(struct audioamd_softc),
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audioamd_sbus_match, audioamd_sbus_attach, NULL, NULL);
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/*
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* Define our interface into the am7930 MI driver.
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*/
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uint8_t audioamd_codec_iread(struct am7930_softc *, int);
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uint16_t audioamd_codec_iread16(struct am7930_softc *, int);
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uint8_t audioamd_codec_dread(struct audioamd_softc *, int);
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void audioamd_codec_iwrite(struct am7930_softc *, int, uint8_t);
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void audioamd_codec_iwrite16(struct am7930_softc *, int, uint16_t);
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void audioamd_codec_dwrite(struct audioamd_softc *, int, uint8_t);
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void audioamd_onopen(struct am7930_softc *);
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void audioamd_onclose(struct am7930_softc *);
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struct am7930_glue audioamd_glue = {
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audioamd_codec_iread,
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audioamd_codec_iwrite,
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audioamd_codec_iread16,
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audioamd_codec_iwrite16,
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audioamd_onopen,
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audioamd_onclose,
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0,
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0,
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0,
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};
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/*
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* Define our interface to the higher level audio driver.
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*/
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int audioamd_start_output(void *, void *, int, void (*)(void *), void *);
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int audioamd_start_input(void *, void *, int, void (*)(void *), void *);
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int audioamd_getdev(void *, struct audio_device *);
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const struct audio_hw_if sa_hw_if = {
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am7930_open,
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am7930_close,
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0,
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am7930_query_encoding,
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am7930_set_params,
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am7930_round_blocksize,
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am7930_commit_settings,
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0,
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0,
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audioamd_start_output, /* md */
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audioamd_start_input, /* md */
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am7930_halt_output,
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am7930_halt_input,
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0,
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audioamd_getdev,
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0,
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am7930_set_port,
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am7930_get_port,
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am7930_query_devinfo,
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0,
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0,
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0,
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0,
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am7930_get_props,
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0,
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0,
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0,
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};
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struct audio_device audioamd_device = {
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"am7930",
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"x",
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"audioamd"
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};
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int
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audioamd_mainbus_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct mainbus_attach_args *ma;
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ma = aux;
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if (CPU_ISSUN4)
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return 0;
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return strcmp(AUDIO_ROM_NAME, ma->ma_name) == 0;
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}
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int
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audioamd_obio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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union obio_attach_args *uoba;
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uoba = aux;
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if (uoba->uoba_isobio4 != 0)
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return 0;
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return strcmp("audio", uoba->uoba_sbus.sa_name) == 0;
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}
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int
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audioamd_sbus_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct sbus_attach_args *sa;
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sa = aux;
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return strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0;
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}
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void
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audioamd_mainbus_attach(struct device *parent, struct device *self, void *aux)
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{
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struct mainbus_attach_args *ma;
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struct audioamd_softc *sc;
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bus_space_handle_t bh;
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ma = aux;
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sc = (struct audioamd_softc *)self;
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sc->sc_bt = ma->ma_bustag;
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if (bus_space_map(
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ma->ma_bustag,
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ma->ma_paddr,
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AM7930_DREG_SIZE,
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BUS_SPACE_MAP_LINEAR,
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&bh) != 0) {
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printf("%s: cannot map registers\n", self->dv_xname);
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return;
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}
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sc->sc_bh = bh;
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audioamd_attach(sc, ma->ma_pri);
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}
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void
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audioamd_obio_attach(struct device *parent, struct device *self, void *aux)
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{
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union obio_attach_args *uoba;
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struct sbus_attach_args *sa;
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struct audioamd_softc *sc;
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bus_space_handle_t bh;
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uoba = aux;
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sa = &uoba->uoba_sbus;
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sc = (struct audioamd_softc *)self;
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sc->sc_bt = sa->sa_bustag;
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot, sa->sa_offset,
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AM7930_DREG_SIZE,
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0, &bh) != 0) {
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printf("%s: cannot map registers\n", self->dv_xname);
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return;
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}
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sc->sc_bh = bh;
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audioamd_attach(sc, sa->sa_pri);
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}
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void
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audioamd_sbus_attach(struct device *parent, struct device *self, void *aux)
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{
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struct sbus_attach_args *sa;
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struct audioamd_softc *sc;
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bus_space_handle_t bh;
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sa = aux;
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sc = (struct audioamd_softc *)self;
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sc->sc_bt = sa->sa_bustag;
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot, sa->sa_offset,
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AM7930_DREG_SIZE,
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0, &bh) != 0) {
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printf("%s: cannot map registers\n", self->dv_xname);
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return;
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}
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sc->sc_bh = bh;
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audioamd_attach(sc, sa->sa_pri);
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}
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void
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audioamd_attach(struct audioamd_softc *sc, int pri)
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{
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/*
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* Set up glue for MI code early; we use some of it here.
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*/
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sc->sc_am7930.sc_glue = &audioamd_glue;
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am7930_init(&sc->sc_am7930, AUDIOAMD_POLL_MODE);
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auiop = &sc->sc_au;
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/* Copy bus tag & handle for use by am7930_trap */
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sc->sc_au.au_bt = sc->sc_bt;
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sc->sc_au.au_bh = sc->sc_bh;
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(void)bus_intr_establish2(sc->sc_bt, pri, IPL_AUDIO,
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am7930hwintr, sc, amd7930_trap);
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sc->sc_sicookie = softintr_establish(IPL_SOFTAUDIO, am7930swintr, sc);
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if (sc->sc_sicookie == NULL) {
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printf("\n%s: cannot establish software interrupt\n",
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sc->sc_am7930.sc_dev.dv_xname);
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return;
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}
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printf(" softpri %d\n", IPL_SOFTAUDIO);
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evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
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sc->sc_am7930.sc_dev.dv_xname, "intr");
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audio_attach_mi(&sa_hw_if, sc, &sc->sc_am7930.sc_dev);
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}
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void
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audioamd_onopen(struct am7930_softc *sc)
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{
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struct audioamd_softc *mdsc;
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mdsc = (struct audioamd_softc *)sc;
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/* reset pdma state */
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mdsc->sc_rintr = 0;
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mdsc->sc_rarg = 0;
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mdsc->sc_pintr = 0;
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mdsc->sc_parg = 0;
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mdsc->sc_au.au_rdata = 0;
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mdsc->sc_au.au_pdata = 0;
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}
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void
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audioamd_onclose(struct am7930_softc *sc)
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{
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/* On sparc, just do the chipset-level halt. */
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am7930_halt_input(sc);
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am7930_halt_output(sc);
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}
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int
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audioamd_start_output(void *addr, void *p, int cc,
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void (*intr)(void *), void *arg)
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{
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struct audioamd_softc *sc;
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DPRINTFN(1, ("sa_start_output: cc=%d %p (%p)\n", cc, intr, arg));
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sc = addr;
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audioamd_codec_iwrite(&sc->sc_am7930,
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AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE);
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DPRINTF(("sa_start_output: started intrs.\n"));
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sc->sc_pintr = intr;
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sc->sc_parg = arg;
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sc->sc_au.au_pdata = p;
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sc->sc_au.au_pend = (char *)p + cc - 1;
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return(0);
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}
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int
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audioamd_start_input(void *addr, void *p, int cc,
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void (*intr)(void *), void *arg)
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{
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struct audioamd_softc *sc;
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DPRINTFN(1, ("sa_start_input: cc=%d %p (%p)\n", cc, intr, arg));
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sc = addr;
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audioamd_codec_iwrite(&sc->sc_am7930,
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AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE);
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DPRINTF(("sa_start_input: started intrs.\n"));
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sc->sc_rintr = intr;
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sc->sc_rarg = arg;
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sc->sc_au.au_rdata = p;
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sc->sc_au.au_rend = (char *)p + cc -1;
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return(0);
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}
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/*
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* Pseudo-DMA support: either C or locore assember.
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*/
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int
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am7930hwintr(void *v)
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{
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struct audioamd_softc *sc;
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struct auio *au;
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uint8_t *d, *e;
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int k;
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sc = v;
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au = &sc->sc_au;
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/* clear interrupt */
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k = audioamd_codec_dread(sc, AM7930_DREG_IR);
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if ((k & (AM7930_IR_DTTHRSH|AM7930_IR_DRTHRSH|AM7930_IR_DSRI|
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AM7930_IR_DERI|AM7930_IR_BBUFF)) == 0)
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return 0;
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/* receive incoming data */
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d = au->au_rdata;
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e = au->au_rend;
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if (d && d <= e) {
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*d = audioamd_codec_dread(sc, AM7930_DREG_BBRB);
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au->au_rdata++;
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if (d == e) {
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DPRINTFN(1, ("am7930hwintr: swintr(r) requested"));
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softintr_schedule(sc->sc_sicookie);
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}
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}
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/* send outgoing data */
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d = au->au_pdata;
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e = au->au_pend;
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if (d && d <= e) {
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audioamd_codec_dwrite(sc, AM7930_DREG_BBTB, *d);
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au->au_pdata++;
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if (d == e) {
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DPRINTFN(1, ("am7930hwintr: swintr(p) requested"));
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softintr_schedule(sc->sc_sicookie);
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}
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}
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au->au_intrcnt.ev_count++;
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return 1;
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}
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void
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am7930swintr(void *sc0)
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{
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struct audioamd_softc *sc;
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struct auio *au;
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int s;
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sc = sc0;
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DPRINTFN(1, ("audiointr: sc=%p\n", sc););
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au = &sc->sc_au;
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s = splaudio();
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if (au->au_rdata > au->au_rend && sc->sc_rintr != NULL) {
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splx(s);
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(*sc->sc_rintr)(sc->sc_rarg);
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s = splaudio();
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}
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if (au->au_pdata > au->au_pend && sc->sc_pintr != NULL) {
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splx(s);
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(*sc->sc_pintr)(sc->sc_parg);
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} else
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splx(s);
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}
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/* indirect write */
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void
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audioamd_codec_iwrite(struct am7930_softc *sc, int reg, uint8_t val)
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{
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struct audioamd_softc *mdsc;
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mdsc = (struct audioamd_softc *)sc;
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audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
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audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val);
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}
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void
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audioamd_codec_iwrite16(struct am7930_softc *sc, int reg, uint16_t val)
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{
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struct audioamd_softc *mdsc;
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mdsc = (struct audioamd_softc *)sc;
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audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
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audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val);
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audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val>>8);
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}
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/* indirect read */
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uint8_t
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audioamd_codec_iread(struct am7930_softc *sc, int reg)
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{
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struct audioamd_softc *mdsc;
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mdsc = (struct audioamd_softc *)sc;
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audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
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return (audioamd_codec_dread(mdsc, AM7930_DREG_DR));
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}
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uint16_t
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audioamd_codec_iread16(struct am7930_softc *sc, int reg)
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{
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struct audioamd_softc *mdsc;
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uint8_t lo, hi;
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mdsc = (struct audioamd_softc *)sc;
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audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
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lo = audioamd_codec_dread(mdsc, AM7930_DREG_DR);
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hi = audioamd_codec_dread(mdsc, AM7930_DREG_DR);
|
|
return (hi << 8) | lo;
|
|
}
|
|
|
|
/* direct read */
|
|
uint8_t
|
|
audioamd_codec_dread(struct audioamd_softc *sc, int reg)
|
|
{
|
|
|
|
return bus_space_read_1(sc->sc_bt, sc->sc_bh, reg);
|
|
}
|
|
|
|
/* direct write */
|
|
void
|
|
audioamd_codec_dwrite(struct audioamd_softc *sc, int reg, uint8_t val)
|
|
{
|
|
|
|
bus_space_write_1(sc->sc_bt, sc->sc_bh, reg, val);
|
|
}
|
|
|
|
int
|
|
audioamd_getdev(void *addr, struct audio_device *retp)
|
|
{
|
|
|
|
*retp = audioamd_device;
|
|
return 0;
|
|
}
|
|
|
|
#endif /* NAUDIO > 0 */
|