From 24038a25e707fe08ff343d72dd667acefcc50f6f Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 8 Aug 2007 17:00:32 +0200
Subject: [ALSA] Add new AFMT_* formats for OSS emulation

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>
---
 sound/core/oss/pcm_oss.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

(limited to 'sound/core/oss')

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index fc11572c48cf..c058713dd567 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -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;
-- 
cgit v1.2.3-70-g09d2