134 lines
3.8 KiB
C
134 lines
3.8 KiB
C
/* $NetBSD: spkr_audio.c,v 1.12 2022/09/24 23:16:02 thorpej Exp $ */
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/*-
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* Copyright (c) 2016 Nathanial Sloss <nathanialsloss@yahoo.com.au>
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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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*
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: spkr_audio.c,v 1.12 2022/09/24 23:16:02 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/audioio.h>
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#include <sys/kernel.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/uio.h>
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#include <sys/proc.h>
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#include <sys/ioctl.h>
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#include <sys/conf.h>
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#include <sys/sysctl.h>
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#include <dev/audio/audiovar.h>
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#include <dev/audio/audiobellvar.h>
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#include <dev/spkrvar.h>
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#include <dev/spkrio.h>
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static int spkr_audio_probe(device_t, cfdata_t, void *);
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static void spkr_audio_attach(device_t, device_t, void *);
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static int spkr_audio_detach(device_t, int);
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static int spkr_audio_rescan(device_t, const char *, const int *);
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static void spkr_audio_childdet(device_t, device_t);
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struct spkr_audio_softc {
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struct spkr_softc sc_spkr;
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device_t sc_audiodev;
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};
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CFATTACH_DECL3_NEW(spkr_audio, sizeof(struct spkr_audio_softc),
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spkr_audio_probe, spkr_audio_attach, spkr_audio_detach, NULL,
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spkr_audio_rescan, spkr_audio_childdet, 0);
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static void
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spkr_audio_tone(device_t self, u_int xhz, u_int ticks)
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{
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struct spkr_audio_softc *sc = device_private(self);
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#ifdef SPKRDEBUG
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device_printf(self, "%s: %u %u\n", __func__, xhz, ticks);
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#endif /* SPKRDEBUG */
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if (xhz == 0 || ticks == 0)
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return;
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audiobell(sc->sc_audiodev, xhz, hztoms(ticks), sc->sc_spkr.sc_vol, 0);
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}
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static int
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spkr_audio_probe(device_t parent, cfdata_t cf, void *aux)
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{
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struct audio_softc *asc = device_private(parent);
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if ((asc->sc_props & AUDIO_PROP_PLAYBACK))
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return 1;
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return 0;
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}
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static void
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spkr_audio_attach(device_t parent, device_t self, void *aux)
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{
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struct spkr_audio_softc *sc = device_private(self);
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aprint_naive("\n");
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aprint_normal(": PC Speaker (synthesized)\n");
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sc->sc_audiodev = parent;
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sc->sc_spkr.sc_vol = 80;
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if (!pmf_device_register(self, NULL, NULL))
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aprint_error_dev(self, "couldn't establish power handler\n");
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spkr_attach(self, spkr_audio_tone);
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}
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static int
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spkr_audio_detach(device_t self, int flags)
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{
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int error;
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if ((error = spkr_detach(self, flags)) != 0)
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return error;
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pmf_device_deregister(self);
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return 0;
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}
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static int
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spkr_audio_rescan(device_t self, const char *iattr, const int *locators)
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{
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return spkr_rescan(self, iattr, locators);
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}
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static void
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spkr_audio_childdet(device_t self, device_t child)
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{
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spkr_childdet(self, child);
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}
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