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ALSA: hda - Add snd_hda_get_int_hint() helper function

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It'll be used in hda_generic.c, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2013-01-11 17:40:31 +01:00
parent 09b70e8509
commit bc759721fb
3 changed files with 30 additions and 17 deletions
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20
sound/pci/hda/hda_hwdep.c
View File

@ -644,6 +644,26 @@ int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
}
EXPORT_SYMBOL_HDA(snd_hda_get_bool_hint);
int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
{
const char *p;
unsigned long val;
int ret;
mutex_lock(&codec->user_mutex);
p = snd_hda_get_hint(codec, key);
if (!p)
ret = -ENOENT;
else if (strict_strtoul(p, 0, &val))
ret = -EINVAL;
else {
*valp = val;
ret = 0;
}
mutex_unlock(&codec->user_mutex);
return ret;
}
EXPORT_SYMBOL_HDA(snd_hda_get_int_hint);
#endif /* CONFIG_SND_HDA_RECONFIG */
#ifdef CONFIG_SND_HDA_PATCH_LOADER

7
sound/pci/hda/hda_local.h
View File

@ -618,6 +618,7 @@ static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
#ifdef CONFIG_SND_HDA_RECONFIG
const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp);
#else
static inline
const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
@ -630,6 +631,12 @@ int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
{
return -ENOENT;
}
static inline
int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
{
return -ENOENT;
}
#endif
/*

20
sound/pci/hda/patch_sigmatel.c
View File

@ -4295,24 +4295,10 @@ static void stac92xx_power_down(struct hda_codec *codec)
static void stac_toggle_power_map(struct hda_codec *codec, hda_nid_t nid,
int enable);
static inline int get_int_hint(struct hda_codec *codec, const char *key,
int *valp)
static inline bool get_int_hint(struct hda_codec *codec, const char *key,
int *valp)
{
#ifdef CONFIG_SND_HDA_RECONFIG
const char *p;
mutex_lock(&codec->user_mutex);
p = snd_hda_get_hint(codec, key);
if (p) {
unsigned long val;
if (!strict_strtoul(p, 0, &val)) {
*valp = val;
mutex_unlock(&codec->user_mutex);
return 1;
}
}
mutex_unlock(&codec->user_mutex);
#endif
return 0;
return !snd_hda_get_int_hint(codec, key, valp);
}
/* override some hints from the hwdep entry */