uaudio_pcm.c

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/* $FreeBSD$ */
 
/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2000-2002 Hiroyuki Aizu <aizu@navi.org>
 * Copyright (c) 2006 Hans Petter Selasky
 *
 * 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 AUTHOR 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 AUTHOR 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.
 */
 
#ifdef HAVE_KERNEL_OPTION_HEADERS
#include "opt_snd.h"
#endif
 
#include <dev/sound/pcm/sound.h>
#include <dev/sound/chip.h>
#include <dev/sound/usb/uaudio.h>
 
#include "mixer_if.h"
 
/************************************************************/
static void *
ua_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
{
        return (uaudio_chan_init(devinfo, b, c, dir));
}
 
static int
ua_chan_free(kobj_t obj, void *data)
{
        return (uaudio_chan_free(data));
}
 
static int
ua_chan_setformat(kobj_t obj, void *data, uint32_t format)
{
        /*
         * At this point, no need to query as we
         * shouldn't select an unsorted format
         */
        return (uaudio_chan_set_param_format(data, format));
}
 
static uint32_t
ua_chan_setspeed(kobj_t obj, void *data, uint32_t speed)
{
        return (uaudio_chan_set_param_speed(data, speed));
}
 
static uint32_t
ua_chan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
{
        return (uaudio_chan_set_param_blocksize(data, blocksize));
}
 
static int
ua_chan_setfragments(kobj_t obj, void *data, uint32_t blocksize, uint32_t blockcount)
{
        return (uaudio_chan_set_param_fragments(data, blocksize, blockcount));
}
 
static int
ua_chan_trigger(kobj_t obj, void *data, int go)
{
        if (PCMTRIG_COMMON(go)) {
                if (go == PCMTRIG_START) {
                        uaudio_chan_start(data);
                } else {
                        uaudio_chan_stop(data);
                }
        }
        return (0);
}
 
static uint32_t
ua_chan_getptr(kobj_t obj, void *data)
{
        return (uaudio_chan_getptr(data));
}
 
static struct pcmchan_caps *
ua_chan_getcaps(kobj_t obj, void *data)
{
        return (uaudio_chan_getcaps(data));
}
 
static struct pcmchan_matrix *
ua_chan_getmatrix(kobj_t obj, void *data, uint32_t format)
{
        return (uaudio_chan_getmatrix(data, format));
}
 
static kobj_method_t ua_chan_methods[] = {
        KOBJMETHOD(channel_init, ua_chan_init),
        KOBJMETHOD(channel_free, ua_chan_free),
        KOBJMETHOD(channel_setformat, ua_chan_setformat),
        KOBJMETHOD(channel_setspeed, ua_chan_setspeed),
        KOBJMETHOD(channel_setblocksize, ua_chan_setblocksize),
        KOBJMETHOD(channel_setfragments, ua_chan_setfragments),
        KOBJMETHOD(channel_trigger, ua_chan_trigger),
        KOBJMETHOD(channel_getptr, ua_chan_getptr),
        KOBJMETHOD(channel_getcaps, ua_chan_getcaps),
        KOBJMETHOD(channel_getmatrix, ua_chan_getmatrix),
        KOBJMETHOD_END
};
 
CHANNEL_DECLARE(ua_chan);
 
/************************************************************/
static int
ua_mixer_init(struct snd_mixer *m)
{
        return (uaudio_mixer_init_sub(mix_getdevinfo(m), m));
}
 
static int
ua_mixer_set(struct snd_mixer *m, unsigned type, unsigned left, unsigned right)
{
        struct mtx *mtx = mixer_get_lock(m);
        uint8_t do_unlock;
 
        if (mtx_owned(mtx)) {
                do_unlock = 0;
        } else {
                do_unlock = 1;
                mtx_lock(mtx);
        }
        uaudio_mixer_set(mix_getdevinfo(m), m, type, left, right);
        if (do_unlock) {
                mtx_unlock(mtx);
        }
        return (left | (right << 8));
}
 
static uint32_t
ua_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
{
        struct mtx *mtx = mixer_get_lock(m);
        int retval;
        uint8_t do_unlock;
 
        if (mtx_owned(mtx)) {
                do_unlock = 0;
        } else {
                do_unlock = 1;
                mtx_lock(mtx);
        }
        retval = uaudio_mixer_setrecsrc(mix_getdevinfo(m), m, src);
        if (do_unlock) {
                mtx_unlock(mtx);
        }
        return (retval);
}
 
static int
ua_mixer_uninit(struct snd_mixer *m)
{
        return (uaudio_mixer_uninit_sub(mix_getdevinfo(m), m));
}
 
static kobj_method_t ua_mixer_methods[] = {
        KOBJMETHOD(mixer_init, ua_mixer_init),
        KOBJMETHOD(mixer_uninit, ua_mixer_uninit),
        KOBJMETHOD(mixer_set, ua_mixer_set),
        KOBJMETHOD(mixer_setrecsrc, ua_mixer_setrecsrc),
        KOBJMETHOD_END
};
 
MIXER_DECLARE(ua_mixer);
/************************************************************/
 
static int
ua_probe(device_t dev)
{
        struct sndcard_func *func;
 
        /* the parent device has already been probed */
 
        func = device_get_ivars(dev);
 
        if ((func == NULL) ||
            (func->func != SCF_PCM)) {
                return (ENXIO);
        }
        device_set_desc(dev, "USB audio");
 
        return (BUS_PROBE_DEFAULT);
}
 
static int
ua_attach(device_t dev)
{
        return (uaudio_attach_sub(dev, &ua_mixer_class, &ua_chan_class));
}
 
static int
ua_detach(device_t dev)
{
        return (uaudio_detach_sub(dev));
}
 
/************************************************************/
 
static device_method_t ua_pcm_methods[] = {
        /* Device interface */
        DEVMETHOD(device_probe, ua_probe),
        DEVMETHOD(device_attach, ua_attach),
        DEVMETHOD(device_detach, ua_detach),
 
        DEVMETHOD_END
};
 
static driver_t ua_pcm_driver = {
        "pcm",
        ua_pcm_methods,
        PCM_SOFTC_SIZE,
};
 
DRIVER_MODULE(ua_pcm, uaudio, ua_pcm_driver, pcm_devclass, 0, 0);
MODULE_DEPEND(ua_pcm, uaudio, 1, 1, 1);
MODULE_DEPEND(ua_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(ua_pcm, 1);