Commit Graph

13 Commits

Author SHA1 Message Date
Lars-Peter Clausen
757b037650 ALSA: pcm: Replace custom ld2 function with __fls
__fls has the same semantics as ld2, so there is no need to re-implement it.
Furthermore a lot of architectures have custom implementations of __fls that
are able to use special hardware instructions to compute the result. This
makes the code slightly shorter and faster.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-30 16:41:56 +01:00
Lars-Peter Clausen
599ee3291a ALSA: pcm: Use __ffs() instead of ffs() in snd_mask_min()
The difference between __ffs and ffs is that ffs will return a one based
index whereas __ffs will return a zero based index. Furthermore ffs will
check if the passed value is zero and return zero in that case, whereas
__ffs behavior is undefined if the passed parameter is 0.

Since we already check if the mask is 0 before calling ffs and also subtract
1 from the result __ffs is the better choice.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-30 16:41:55 +01:00
Lars-Peter Clausen
cd9978f1d3 ALSA: pcm: Simplify params_period_bytes()
The hw_params struct has a parameter that contains the period size in bytes.
This can be used instead of deriving the value from other parameters. This
is similar to e.g. params_buffer_bytes()

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-30 16:41:55 +01:00
Lars-Peter Clausen
89827ca9dd ALSA: pcm: Add kernel doc for params_*() functions
Add kernel doc for the remaining undocumented params_*() functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-30 16:41:54 +01:00
Lars-Peter Clausen
744c2ad2f9 ALSA: pcm: Convert params_* mask helpers to static inline functions
Use static inline functions instead of macros for the remaining params_*()
helpers that have not been converted yet. This is slightly cleaner and
offers better type safety.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-30 16:41:54 +01:00
Lars-Peter Clausen
26c0d8a415 ALSA: pcm_params: Remove unused add/sub functions
Those two functions are not used anywhere and also their name is a bit to
generic to be in a global header, so remove them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-30 16:41:54 +01:00
Mark Brown
8c5178fca4 ALSA: Add params_width() helpers
Add helpers for obtaining the width of a format directly from params
since this is expected to become a common operation in ASoC.

Signed-off-by: Mark Brown <broonie@linaro.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
2013-12-30 12:19:26 +00:00
Mark Brown
f3761c3950 ALSA: Add missing include of pcm.h to pcm_params.h
There's a dependency but no #include.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-20 12:00:59 +02:00
Takashi Iwai
b51beb756a ALSA: Make pcm.h self-contained
Move the macros depending on snd_mask_min() and co out of pcm.h into
pcm_params.h.  Otherwise using some params_*() macros will give comiple
errors without inclusion of pcm_params.h.

Also use hw_param_interval_c() and hw_param_mask_c() for const pointer.

Reported-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-26 17:21:24 +02:00
Takashi Iwai
e88e8ae639 [ALSA] Move OSS-specific hw_params helper to snd-pcm-oss module
Move EXPORT_SYMBOL()s to places adjacent to functions/variables.
Also move OSS-specific hw_params helper functions to pcm_oss.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:33:05 +02:00
Takashi Iwai
9bb22e215c [ALSA] Clean up ugly hacks in pcm_params.h
Clean up ugly hacks for sync with alsa-lib in pcm_params.h.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:32:51 +02:00
Takashi Iwai
877211f5e1 [ALSA] Remove xxx_t typedefs: PCM
Modules: PCM Midlevel

Remove xxx_t typedefs from the core PCM codes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:17:43 +01:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00