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[ALSA] oxygen: use an array of snd_kcontrol pointers

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Use an array for the pointers to known controls so that it is easier to
add more.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Clemens Ladisch
2008-01-14 08:56:01 +01:00
committed by Jaroslav Kysela
parent 7113e95812
commit 01a3affb2e
4 changed files with 28 additions and 20 deletions
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27
sound/pci/oxygen/oxygen_mixer.c
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@@ -586,15 +586,22 @@ static const struct snd_kcontrol_new controls[] = {
static void oxygen_any_ctl_free(struct snd_kcontrol *ctl)
{
struct oxygen *chip = ctl->private_data;
unsigned int i;
/* I'm too lazy to write a function for each control :-) */
chip->spdif_pcm_ctl = NULL;
chip->spdif_input_bits_ctl = NULL;
for (i = 0; i < ARRAY_SIZE(chip->controls); ++i)
chip->controls[i] = NULL;
}
int oxygen_mixer_init(struct oxygen *chip)
{
unsigned int i;
static const char *const known_ctl_names[CONTROL_COUNT] = {
[CONTROL_SPDIF_PCM] =
SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
[CONTROL_SPDIF_INPUT_BITS] =
SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
};
unsigned int i, j;
struct snd_kcontrol *ctl;
int err;
@@ -610,15 +617,11 @@ int oxygen_mixer_init(struct oxygen *chip)
err = snd_ctl_add(chip->card, ctl);
if (err < 0)
return err;
if (!strcmp(ctl->id.name,
SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM))) {
chip->spdif_pcm_ctl = ctl;
ctl->private_free = oxygen_any_ctl_free;
} else if (!strcmp(ctl->id.name,
SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT))) {
chip->spdif_input_bits_ctl = ctl;
ctl->private_free = oxygen_any_ctl_free;
}
for (j = 0; j < CONTROL_COUNT; ++j)
if (!strcmp(ctl->id.name, known_ctl_names[j])) {
chip->controls[j] = ctl;
ctl->private_free = oxygen_any_ctl_free;
}
}
return chip->model->mixer_init ? chip->model->mixer_init(chip) : 0;
}