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[ALSA] Add new AFMT_* formats for OSS emulation

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The recent OSS includes the support for 32bit and other formats, which
we already have, too.  Let's define and map them.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2007-08-08 17:00:32 +02:00 committed by Jaroslav Kysela
parent 100eb7c284
commit 24038a25e7
1 changed files with 34 additions and 1 deletions
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35
sound/core/oss/pcm_oss.c
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@ -633,6 +633,22 @@ static long snd_pcm_alsa_frames(struct snd_pcm_substream *substream, long bytes)
return bytes_to_frames(runtime, (buffer_size * bytes) / runtime->oss.buffer_bytes);
}
/* define extended formats in the recent OSS versions (if any) */
/* linear formats */
#define AFMT_S32_LE 0x00001000
#define AFMT_S32_BE 0x00002000
#define AFMT_S24_LE 0x00008000
#define AFMT_S24_BE 0x00010000
#define AFMT_S24_PACKED 0x00040000
/* other supported formats */
#define AFMT_FLOAT 0x00004000
#define AFMT_SPDIF_RAW 0x00020000
/* unsupported formats */
#define AFMT_AC3 0x00000400
#define AFMT_VORBIS 0x00000800
static int snd_pcm_oss_format_from(int format)
{
switch (format) {
@ -646,6 +662,13 @@ static int snd_pcm_oss_format_from(int format)
case AFMT_U16_LE: return SNDRV_PCM_FORMAT_U16_LE;
case AFMT_U16_BE: return SNDRV_PCM_FORMAT_U16_BE;
case AFMT_MPEG: return SNDRV_PCM_FORMAT_MPEG;
case AFMT_S32_LE: return SNDRV_PCM_FORMAT_S32_LE;
case AFMT_S32_BE: return SNDRV_PCM_FORMAT_S32_BE;
case AFMT_S24_LE: return SNDRV_PCM_FORMAT_S24_LE;
case AFMT_S24_BE: return SNDRV_PCM_FORMAT_S24_BE;
case AFMT_S24_PACKED: return SNDRV_PCM_FORMAT_S24_3LE;
case AFMT_FLOAT: return SNDRV_PCM_FORMAT_FLOAT;
case AFMT_SPDIF_RAW: return SNDRV_PCM_FORMAT_IEC958_SUBFRAME;
default: return SNDRV_PCM_FORMAT_U8;
}
}
@ -663,6 +686,13 @@ static int snd_pcm_oss_format_to(int format)
case SNDRV_PCM_FORMAT_U16_LE: return AFMT_U16_LE;
case SNDRV_PCM_FORMAT_U16_BE: return AFMT_U16_BE;
case SNDRV_PCM_FORMAT_MPEG: return AFMT_MPEG;
case SNDRV_PCM_FORMAT_S32_LE: return AFMT_S32_LE;
case SNDRV_PCM_FORMAT_S32_BE: return AFMT_S32_BE;
case SNDRV_PCM_FORMAT_S24_LE: return AFMT_S24_LE;
case SNDRV_PCM_FORMAT_S24_BE: return AFMT_S24_BE;
case SNDRV_PCM_FORMAT_S24_3LE: return AFMT_S24_PACKED;
case SNDRV_PCM_FORMAT_FLOAT: return AFMT_FLOAT;
case SNDRV_PCM_FORMAT_IEC958_SUBFRAME: return AFMT_SPDIF_RAW;
default: return -EINVAL;
}
}
@ -1725,7 +1755,10 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file)
return AFMT_MU_LAW | AFMT_U8 |
AFMT_S16_LE | AFMT_S16_BE |
AFMT_S8 | AFMT_U16_LE |
AFMT_U16_BE;
AFMT_U16_BE |
AFMT_S32_LE | AFMT_S32_BE |
AFMT_S24_LE | AFMT_S24_LE |
AFMT_S24_PACKED;
params = kmalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;