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author | Takashi Iwai <tiwai@suse.de> | 2006-04-28 13:13:40 (GMT) |
---|---|---|
committer | Jaroslav Kysela <perex@suse.cz> | 2006-06-22 19:33:06 (GMT) |
commit | 2f4ca8e5c7cf6a6f7935483d8ee4aa8b039bdd7d (patch) | |
tree | be79b48cd1d562a17379f0b602034ecacd358446 /sound/core | |
parent | e88e8ae639a4908b903d9406c54e99a729b01a28 (diff) | |
download | linux-2f4ca8e5c7cf6a6f7935483d8ee4aa8b039bdd7d.tar.xz |
[ALSA] Clean up ugly hacks in pcm_lib.c
Clean up ugly hacks for sync with alsa-lib code in pcm_lib.c.
Also, optimize snd_pcm_hw_params_choose() with a loop.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r-- | sound/core/pcm_lib.c | 70 |
1 files changed, 26 insertions, 44 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 786f881..a21aa00 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -1163,12 +1163,6 @@ int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime, EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2); -/* To use the same code we have in alsa-lib */ -#define assert(i) snd_assert((i), return -EINVAL) -#ifndef INT_MIN -#define INT_MIN ((int)((unsigned int)INT_MAX+1)) -#endif - static void _snd_pcm_hw_param_any(struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var) { @@ -1228,7 +1222,6 @@ int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params, *dir = i->openmin; return snd_interval_value(i); } - assert(0); return -EINVAL; } @@ -1260,10 +1253,8 @@ static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params, changed = snd_mask_refine_first(hw_param_mask(params, var)); else if (hw_is_interval(var)) changed = snd_interval_refine_first(hw_param_interval(params, var)); - else { - assert(0); + else return -EINVAL; - } if (changed) { params->cmask |= 1 << var; params->rmask |= 1 << var; @@ -1292,7 +1283,7 @@ int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm, return changed; if (params->rmask) { int err = snd_pcm_hw_refine(pcm, params); - assert(err >= 0); + snd_assert(err >= 0, return err); } return snd_pcm_hw_param_value(params, var, dir); } @@ -1307,10 +1298,8 @@ static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params, changed = snd_mask_refine_last(hw_param_mask(params, var)); else if (hw_is_interval(var)) changed = snd_interval_refine_last(hw_param_interval(params, var)); - else { - assert(0); + else return -EINVAL; - } if (changed) { params->cmask |= 1 << var; params->rmask |= 1 << var; @@ -1339,7 +1328,7 @@ int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, return changed; if (params->rmask) { int err = snd_pcm_hw_refine(pcm, params); - assert(err >= 0); + snd_assert(err >= 0, return err); } return snd_pcm_hw_param_value(params, var, dir); } @@ -1356,39 +1345,32 @@ EXPORT_SYMBOL(snd_pcm_hw_param_last); * first access, first format, first subformat, min channels, * min rate, min period time, max buffer size, min tick time */ -int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params) -{ - int err; - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_ACCESS, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_FORMAT, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_SUBFORMAT, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_CHANNELS, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_RATE, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_PERIOD_TIME, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_last(pcm, params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL); - assert(err >= 0); - - err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_TICK_TIME, NULL); - assert(err >= 0); +int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm, + struct snd_pcm_hw_params *params) +{ + static int vars[] = { + SNDRV_PCM_HW_PARAM_ACCESS, + SNDRV_PCM_HW_PARAM_FORMAT, + SNDRV_PCM_HW_PARAM_SUBFORMAT, + SNDRV_PCM_HW_PARAM_CHANNELS, + SNDRV_PCM_HW_PARAM_RATE, + SNDRV_PCM_HW_PARAM_PERIOD_TIME, + SNDRV_PCM_HW_PARAM_BUFFER_SIZE, + SNDRV_PCM_HW_PARAM_TICK_TIME, + -1 + }; + int err, *v; + for (v = vars; *v != -1; v++) { + if (*v != SNDRV_PCM_HW_PARAM_BUFFER_SIZE) + err = snd_pcm_hw_param_first(pcm, params, *v, NULL); + else + err = snd_pcm_hw_param_last(pcm, params, *v, NULL); + snd_assert(err >= 0, return err); + } return 0; } -#undef assert - static int snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream, void *arg) { |