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V4L/DVB: cx18-alsa: Add non-working cx18-alsa-pcm.[ch] files to avoid data loss

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Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2009-06-24 07:26:45 -03:00 committed by Mauro Carvalho Chehab
parent 9722c8f95a
commit f9b071c77a
2 changed files with 138 additions and 0 deletions
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115
drivers/media/video/cx18/cx18-alsa-pcm.c Normal file
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@ -0,0 +1,115 @@
/*
* ALSA PCM device for the
* ALSA interface to cx18 PCM capture streams
*
* Copyright (C) 2009 Andy Walls <awalls@radix.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <media/v4l2-device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include "cx18-driver.h"
#include "cx18-alsa.h"
static int snd_cx18_pcm_capture_open(struct snd_pcm_substream *substream)
{
struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
struct snd_card *sc = cxsc->sc;
struct cx18 *cx = to_cx18(v4l2_dev);
return 0;
}
static int snd_cx18_pcm_capture_close(struct snd_pcm_substream *substream)
{
return 0;
}
static int snd_cx18_pcm_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
static int snd_cx18_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
return 0;
}
static int snd_cx18_pcm_hw_free(struct snd_pcm_substream *substream)
{
return 0;
}
static int snd_cx18_pcm_prepare(struct snd_pcm_substream *substream)
{
return 0;
}
static int snd_cx18_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
return 0;
}
static
snd_pcm_uframes_t snd_cx18_pcm_pointer(struct snd_pcm_substream *substream)
{
return 0;
}
static struct snd_pcm_ops snd_cx18_pcm_capture_ops = {
.open = snd_cx18_pcm_capture_open,
.close = snd_cx18_pcm_capture_close,
.ioctl = snd_cx18_pcm_ioctl,
.hw_params = snd_cx18_pcm_hw_params,
.hw_free = snd_cx18_pcm_hw_free,
.prepare = snd_cx18_pcm_prepare,
.trigger = snd_cx18_pcm_trigger,
.pointer = snd_cx18_pcm_pointer,
};
int __init snd_cx18_pcm_create(struct snd_cx18_card *cxsc)
{
struct snd_pcm *sp;
struct snd_card *sc = cxsc->sc;
struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
struct cx18 *cx = to_cx18(v4l2_dev);
int ret;
ret = snd_pcm_new(sc, "CX23418 PCM",
0, /* PCM device 0, the only one for this card */
0, /* 0 playback substreams */
1, /* 1 capture substream */
&sp);
if (ret) {
CX18_ALSA_ERR("%s: snd_cx18_pcm_create() failed with err %d\n",
__func__, ret);
goto err_exit;
}
return 0;
err_exit:
return ret;
}

23
drivers/media/video/cx18/cx18-alsa-pcm.h Normal file
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/*
* ALSA PCM device for the
* ALSA interface to cx18 PCM capture streams
*
* Copyright (C) 2009 Andy Walls <awalls@radix.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/
int __init snd_cx18_pcm_create(struct snd_cx18_card *cxsc);