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Diffstat (limited to 'sound/core/oss/mulaw.c')
-rw-r--r--sound/core/oss/mulaw.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/sound/core/oss/mulaw.c b/sound/core/oss/mulaw.c
index 14f5578ec7a..2eb18807e6d 100644
--- a/sound/core/oss/mulaw.c
+++ b/sound/core/oss/mulaw.c
@@ -22,6 +22,9 @@
*/
#include <sound/driver.h>
+
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
+
#include <linux/time.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -262,6 +265,25 @@ static snd_pcm_sframes_t mulaw_transfer(struct snd_pcm_plugin *plugin,
return frames;
}
+static int getput_index(int format)
+{
+ int sign, width, endian;
+ sign = !snd_pcm_format_signed(format);
+ width = snd_pcm_format_width(format) / 8 - 1;
+ if (width < 0 || width > 3) {
+ snd_printk(KERN_ERR "snd-pcm-oss: invalid format %d\n", format);
+ width = 0;
+ }
+#ifdef SNDRV_LITTLE_ENDIAN
+ endian = snd_pcm_format_big_endian(format);
+#else
+ endian = snd_pcm_format_little_endian(format);
+#endif
+ if (endian < 0)
+ endian = 0;
+ return width * 4 + endian * 2 + sign;
+}
+
int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
struct snd_pcm_plugin_format *src_format,
struct snd_pcm_plugin_format *dst_format,
@@ -306,3 +328,5 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
*r_plugin = plugin;
return 0;
}
+
+#endif