diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/cx18/cx18-alsa-pcm.c | 115 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-alsa-pcm.h | 23 |
2 files changed, 138 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.c b/drivers/media/video/cx18/cx18-alsa-pcm.c new file mode 100644 index 00000000000..e3157cec5ac --- /dev/null +++ b/drivers/media/video/cx18/cx18-alsa-pcm.c @@ -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; +} diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.h b/drivers/media/video/cx18/cx18-alsa-pcm.h new file mode 100644 index 00000000000..ff47a1ebe80 --- /dev/null +++ b/drivers/media/video/cx18/cx18-alsa-pcm.h @@ -0,0 +1,23 @@ +/* + * 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); |