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ALSA: usb-audio: make set_*_mix_values functions public 

Make the functions set_cur_mix_value and get_cur_mix_value accessible by files
that include mixer.h. In addition make usb_mixer_elem_free accessible.
This allows reuse of these functions by mixers that may require quirks.

The following summarizes the renamed functions:
  - set_cur_mix_value -> snd_usb_set_cur_mix_value
  - get_cur_mix_value -> snd_usb_get_cur_mix_value
  - usb_mixer_elem_free -> snd_usb_mixer_elem_free

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Chris J Arges 2014-11-12 12:07:01 -06:00 committed by Takashi Iwai
parent f41d6049d1
commit eef9045160
3 changed files with 26 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
sound/usb/mixer.c
View File

@ -412,7 +412,7 @@ static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval,
value);
}
static int get_cur_mix_value(struct usb_mixer_elem_info *cval,
int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
int channel, int index, int *value)
{
int err;
@ -497,7 +497,7 @@ static int set_cur_ctl_value(struct usb_mixer_elem_info *cval,
return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value);
}
static int set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
int index, int value)
{
int err;
@ -815,7 +815,7 @@ static struct usb_feature_control_info audio_feature_info[] = {
};
/* private_free callback */
static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl)
{
kfree(kctl->private_data);
kctl->private_data = NULL;
@ -998,7 +998,7 @@ static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval,
else
test -= cval->res;
if (test < cval->min || test > cval->max ||
set_cur_mix_value(cval, minchn, 0, test) ||
snd_usb_set_cur_mix_value(cval, minchn, 0, test) ||
get_cur_mix_raw(cval, minchn, &check)) {
cval->res = last_valid_res;
break;
@ -1007,7 +1007,7 @@ static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval,
break;
cval->res *= 2;
}
set_cur_mix_value(cval, minchn, 0, saved);
snd_usb_set_cur_mix_value(cval, minchn, 0, saved);
}
cval->initialized = 1;
@ -1086,7 +1086,7 @@ static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol,
for (c = 0; c < MAX_CHANNELS; c++) {
if (!(cval->cmask & (1 << c)))
continue;
err = get_cur_mix_value(cval, c + 1, cnt, &val);
err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val);
if (err < 0)
return cval->mixer->ignore_ctl_error ? 0 : err;
val = get_relative_value(cval, val);
@ -1096,7 +1096,7 @@ static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol,
return 0;
} else {
/* master channel */
err = get_cur_mix_value(cval, 0, 0, &val);
err = snd_usb_get_cur_mix_value(cval, 0, 0, &val);
if (err < 0)
return cval->mixer->ignore_ctl_error ? 0 : err;
val = get_relative_value(cval, val);
@ -1118,26 +1118,26 @@ static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol,
for (c = 0; c < MAX_CHANNELS; c++) {
if (!(cval->cmask & (1 << c)))
continue;
err = get_cur_mix_value(cval, c + 1, cnt, &oval);
err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval);
if (err < 0)
return cval->mixer->ignore_ctl_error ? 0 : err;
val = ucontrol->value.integer.value[cnt];
val = get_abs_value(cval, val);
if (oval != val) {
set_cur_mix_value(cval, c + 1, cnt, val);
snd_usb_set_cur_mix_value(cval, c + 1, cnt, val);
changed = 1;
}
cnt++;
}
} else {
/* master channel */
err = get_cur_mix_value(cval, 0, 0, &oval);
err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval);
if (err < 0)
return cval->mixer->ignore_ctl_error ? 0 : err;
val = ucontrol->value.integer.value[0];
val = get_abs_value(cval, val);
if (val != oval) {
set_cur_mix_value(cval, 0, 0, val);
snd_usb_set_cur_mix_value(cval, 0, 0, val);
changed = 1;
}
}
@ -1250,7 +1250,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
/*
* If all channels in the mask are marked read-only, make the control
* read-only. set_cur_mix_value() will check the mask again and won't
* read-only. snd_usb_set_cur_mix_value() will check the mask again and won't
* issue write commands to read-only channels.
*/
if (cval->channels == readonly_mask)
@ -1263,7 +1263,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
kfree(cval);
return;
}
kctl->private_free = usb_mixer_elem_free;
kctl->private_free = snd_usb_mixer_elem_free;
len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
mapped_name = len != 0;
@ -1546,7 +1546,7 @@ static void build_mixer_unit_ctl(struct mixer_build *state,
kfree(cval);
return;
}
kctl->private_free = usb_mixer_elem_free;
kctl->private_free = snd_usb_mixer_elem_free;
len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
if (!len)
@ -1846,7 +1846,7 @@ static int build_audio_procunit(struct mixer_build *state, int unitid,
kfree(cval);
return -ENOMEM;
}
kctl->private_free = usb_mixer_elem_free;
kctl->private_free = snd_usb_mixer_elem_free;
if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) {
/* nothing */ ;
@ -2526,7 +2526,7 @@ static int restore_mixer_value(struct usb_mixer_elem_info *cval)
if (!(cval->cmask & (1 << c)))
continue;
if (cval->cached & (1 << c)) {
err = set_cur_mix_value(cval, c + 1, idx,
err = snd_usb_set_cur_mix_value(cval, c + 1, idx,
cval->cache_val[idx]);
if (err < 0)
return err;
@ -2536,7 +2536,7 @@ static int restore_mixer_value(struct usb_mixer_elem_info *cval)
} else {
/* master */
if (cval->cached) {
err = set_cur_mix_value(cval, 0, 0, *cval->cache_val);
err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
if (err < 0)
return err;
}

8
sound/usb/mixer.h
View File

@ -76,4 +76,12 @@ int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
#endif
int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
int index, int value);
int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
int channel, int index, int *value);
extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);
#endif /* __USBMIXER_H */

9
sound/usb/mixer_quirks.c
View File

@ -52,13 +52,6 @@ struct std_mono_table {
snd_kcontrol_tlv_rw_t *tlv_callback;
};
/* private_free callback */
static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
{
kfree(kctl->private_data);
kctl->private_data = NULL;
}
/* This function allows for the creation of standard UAC controls.
* See the quirks for M-Audio FTUs or Ebox-44.
* If you don't want to set a TLV callback pass NULL.
@ -108,7 +101,7 @@ static int snd_create_std_mono_ctl_offset(struct usb_mixer_interface *mixer,
/* Set name */
snprintf(kctl->id.name, sizeof(kctl->id.name), name);
kctl->private_free = usb_mixer_elem_free;
kctl->private_free = snd_usb_mixer_elem_free;
/* set TLV */
if (tlv_callback) {