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authorTakashi Iwai <tiwai@suse.de>2006-04-28 15:13:40 +0200
committerJaroslav Kysela <perex@suse.cz>2006-06-22 21:33:06 +0200
commit2f4ca8e5c7cf6a6f7935483d8ee4aa8b039bdd7d (patch)
treebe79b48cd1d562a17379f0b602034ecacd358446 /sound/core
parente88e8ae639a4908b903d9406c54e99a729b01a28 (diff)
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[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.c70
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)
{