[ALSA] Support 3-bytes 24bit format in PCM OSS emulation

[mv-sheeva.git] / sound / core / pcm_misc.c

diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index 593c77f4d181bcfe0fb55d0e5e0349ec3fdc90ba..9142fce4dda2c70f3e7b8dda31093613065661ef 100644 (file)
--- a/sound/core/pcm_misc.c
+++ b/sound/core/pcm_misc.c
@@ -207,6 +207,8 @@ int snd_pcm_format_signed(snd_pcm_format_t format)
        return val;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_signed);
+
 /**
  * snd_pcm_format_unsigned - Check the PCM format is unsigned linear
  * @format: the format to check
@@ -224,6 +226,8 @@ int snd_pcm_format_unsigned(snd_pcm_format_t format)
        return !val;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_unsigned);
+
 /**
  * snd_pcm_format_linear - Check the PCM format is linear
  * @format: the format to check
@@ -235,6 +239,8 @@ int snd_pcm_format_linear(snd_pcm_format_t format)
        return snd_pcm_format_signed(format) >= 0;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_linear);
+
 /**
  * snd_pcm_format_little_endian - Check the PCM format is little-endian
  * @format: the format to check
@@ -252,6 +258,8 @@ int snd_pcm_format_little_endian(snd_pcm_format_t format)
        return val;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_little_endian);
+
 /**
  * snd_pcm_format_big_endian - Check the PCM format is big-endian
  * @format: the format to check
@@ -269,6 +277,8 @@ int snd_pcm_format_big_endian(snd_pcm_format_t format)
        return !val;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_big_endian);
+
 /**
  * snd_pcm_format_width - return the bit-width of the format
  * @format: the format to check
@@ -286,6 +296,8 @@ int snd_pcm_format_width(snd_pcm_format_t format)
        return val;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_width);
+
 /**
  * snd_pcm_format_physical_width - return the physical bit-width of the format
  * @format: the format to check
@@ -303,6 +315,8 @@ int snd_pcm_format_physical_width(snd_pcm_format_t format)
        return val;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_physical_width);
+
 /**
  * snd_pcm_format_size - return the byte size of samples on the given format
  * @format: the format to check
@@ -318,6 +332,8 @@ ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples)
        return samples * phys_width / 8;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_size);
+
 /**
  * snd_pcm_format_silence_64 - return the silent data in 8 bytes array
  * @format: the format to check
@@ -333,6 +349,8 @@ const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format)
        return pcm_formats[format].silence;
 }
 
+EXPORT_SYMBOL(snd_pcm_format_silence_64);
+
 /**
  * snd_pcm_format_set_silence - set the silence data on the buffer
  * @format: the PCM format
@@ -402,35 +420,7 @@ int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int
        return 0;
 }
 
-/* [width][unsigned][bigendian] */
-static int linear_formats[4][2][2] = {
-       {{ SNDRV_PCM_FORMAT_S8, SNDRV_PCM_FORMAT_S8},
-        { SNDRV_PCM_FORMAT_U8, SNDRV_PCM_FORMAT_U8}},
-       {{SNDRV_PCM_FORMAT_S16_LE, SNDRV_PCM_FORMAT_S16_BE},
-        {SNDRV_PCM_FORMAT_U16_LE, SNDRV_PCM_FORMAT_U16_BE}},
-       {{SNDRV_PCM_FORMAT_S24_LE, SNDRV_PCM_FORMAT_S24_BE},
-        {SNDRV_PCM_FORMAT_U24_LE, SNDRV_PCM_FORMAT_U24_BE}},
-       {{SNDRV_PCM_FORMAT_S32_LE, SNDRV_PCM_FORMAT_S32_BE},
-        {SNDRV_PCM_FORMAT_U32_LE, SNDRV_PCM_FORMAT_U32_BE}}
-};
-
-/**
- * snd_pcm_build_linear_format - return the suitable linear format for the given condition
- * @width: the bit-width
- * @unsignd: 1 if unsigned, 0 if signed.
- * @big_endian: 1 if big-endian, 0 if little-endian
- *
- * Returns the suitable linear format for the given condition.
- */
-snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian)
-{
-       if (width & 7)
-               return SND_PCM_FORMAT_UNKNOWN;
-       width = (width / 8) - 1;
-       if (width < 0 || width >= 4)
-               return SND_PCM_FORMAT_UNKNOWN;
-       return linear_formats[width][!!unsignd][!!big_endian];
-}
+EXPORT_SYMBOL(snd_pcm_format_set_silence);
 
 /**
  * snd_pcm_limit_hw_rates - determine rate_min/rate_max fields
@@ -463,3 +453,5 @@ int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime)
        }
        return 0;
 }
+
+EXPORT_SYMBOL(snd_pcm_limit_hw_rates);