189 	/* FIXME: the following format is not defined properly yet */
253  * snd_pcm_format_signed - Check the PCM format is signed linear
254  * @format: the format to check
256  * Return: 1 if the given PCM format is signed linear, 0 if unsigned
259 int snd_pcm_format_signed(snd_pcm_format_t format)  in snd_pcm_format_signed()  argument
262 	if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)  in snd_pcm_format_signed()
264 	if ((val = pcm_formats[(INT)format].signd) < 0)  in snd_pcm_format_signed()
271  * snd_pcm_format_unsigned - Check the PCM format is unsigned linear
272  * @format: the format to check
274  * Return: 1 if the given PCM format is unsigned linear, 0 if signed
277 int snd_pcm_format_unsigned(snd_pcm_format_t format)  in snd_pcm_format_unsigned()  argument
281 	val = snd_pcm_format_signed(format);  in snd_pcm_format_unsigned()
289  * snd_pcm_format_linear - Check the PCM format is linear
290  * @format: the format to check
292  * Return: 1 if the given PCM format is linear, 0 if not.
294 int snd_pcm_format_linear(snd_pcm_format_t format)  in snd_pcm_format_linear()  argument
296 	return snd_pcm_format_signed(format) >= 0;  in snd_pcm_format_linear()
301  * snd_pcm_format_little_endian - Check the PCM format is little-endian
302  * @format: the format to check
304  * Return: 1 if the given PCM format is little-endian, 0 if
307 int snd_pcm_format_little_endian(snd_pcm_format_t format)  in snd_pcm_format_little_endian()  argument
310 	if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)  in snd_pcm_format_little_endian()
312 	if ((val = pcm_formats[(INT)format].le) < 0)  in snd_pcm_format_little_endian()
319  * snd_pcm_format_big_endian - Check the PCM format is big-endian
320  * @format: the format to check
322  * Return: 1 if the given PCM format is big-endian, 0 if
325 int snd_pcm_format_big_endian(snd_pcm_format_t format)  in snd_pcm_format_big_endian()  argument
329 	val = snd_pcm_format_little_endian(format);  in snd_pcm_format_big_endian()
337  * snd_pcm_format_width - return the bit-width of the format
338  * @format: the format to check
340  * Return: The bit-width of the format, or a negative error code
341  * if unknown format.
343 int snd_pcm_format_width(snd_pcm_format_t format)  in snd_pcm_format_width()  argument
346 	if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)  in snd_pcm_format_width()
348 	if ((val = pcm_formats[(INT)format].width) == 0)  in snd_pcm_format_width()
355  * snd_pcm_format_physical_width - return the physical bit-width of the format
356  * @format: the format to check
358  * Return: The physical bit-width of the format, or a negative error code
359  * if unknown format.
361 int snd_pcm_format_physical_width(snd_pcm_format_t format)  in snd_pcm_format_physical_width()  argument
364 	if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)  in snd_pcm_format_physical_width()
366 	if ((val = pcm_formats[(INT)format].phys) == 0)  in snd_pcm_format_physical_width()
373  * snd_pcm_format_size - return the byte size of samples on the given format
374  * @format: the format to check
377  * Return: The byte size of the given samples for the format, or a
378  * negative error code if unknown format.
380 ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples)  in snd_pcm_format_size()  argument
382 	int phys_width = snd_pcm_format_physical_width(format);  in snd_pcm_format_size()
391  * @format: the format to check
393  * Return: The format pattern to fill or %NULL if error.
395 const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format)  in snd_pcm_format_silence_64()  argument
397 	if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)  in snd_pcm_format_silence_64()
399 	if (! pcm_formats[(INT)format].phys)  in snd_pcm_format_silence_64()
401 	return pcm_formats[(INT)format].silence;  in snd_pcm_format_silence_64()
407  * @format: the PCM format
415 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int samples)  in snd_pcm_format_set_silence()  argument
420 	if ((INT)format < 0 || (INT)format > (INT)SNDRV_PCM_FORMAT_LAST)  in snd_pcm_format_set_silence()
424 	width = pcm_formats[(INT)format].phys; /* physical width */  in snd_pcm_format_set_silence()
425 	pat = pcm_formats[(INT)format].silence;  in snd_pcm_format_set_silence()
429 	if (pcm_formats[(INT)format].signd == 1 || width <= 8) {  in snd_pcm_format_set_silence()