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[ALSA] oxygen: use an array of snd_kcontrol pointers 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sound/pci/oxygen/oxygen.h
View File

@ -15,6 +15,12 @@
#define PCM_AC97 5
#define PCM_COUNT 6
enum {
CONTROL_SPDIF_PCM,
CONTROL_SPDIF_INPUT_BITS,
CONTROL_COUNT
};
#define OXYGEN_PCI_SUBID(sv, sd) \
.vendor = PCI_VENDOR_ID_CMEDIA, \
.device = 0x8788, \
@ -50,8 +56,7 @@ struct oxygen {
u32 spdif_bits;
u32 spdif_pcm_bits;
struct snd_pcm_substream *streams[PCM_COUNT];
struct snd_kcontrol *spdif_pcm_ctl;
struct snd_kcontrol *spdif_input_bits_ctl;
struct snd_kcontrol *controls[CONTROL_COUNT];
struct work_struct spdif_input_bits_work;
};

4
sound/pci/oxygen/oxygen_lib.c
View File

@ -114,7 +114,7 @@ static void oxygen_spdif_input_bits_changed(struct work_struct *work)
}
}
if (chip->spdif_input_bits_ctl) {
if (chip->controls[CONTROL_SPDIF_INPUT_BITS]) {
spin_lock_irq(&chip->reg_lock);
chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_CHANGE;
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
@ -122,7 +122,7 @@ static void oxygen_spdif_input_bits_changed(struct work_struct *work)
spin_unlock_irq(&chip->reg_lock);
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->spdif_input_bits_ctl->id);
&chip->controls[CONTROL_SPDIF_INPUT_BITS]->id);
}
}

27
sound/pci/oxygen/oxygen_mixer.c
View File

@ -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;
}

8
sound/pci/oxygen/oxygen_pcm.c
View File

@ -209,11 +209,11 @@ static int oxygen_open(struct snd_pcm_substream *substream,
chip->pcm_active |= 1 << channel;
if (channel == PCM_SPDIF) {
chip->spdif_pcm_bits = chip->spdif_bits;
chip->spdif_pcm_ctl->vd[0].access &=
chip->controls[CONTROL_SPDIF_PCM]->vd[0].access &=
~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO,
&chip->spdif_pcm_ctl->id);
&chip->controls[CONTROL_SPDIF_PCM]->id);
}
mutex_unlock(&chip->mutex);
@ -258,11 +258,11 @@ static int oxygen_close(struct snd_pcm_substream *substream)
mutex_lock(&chip->mutex);
chip->pcm_active &= ~(1 << channel);
if (channel == PCM_SPDIF) {
chip->spdif_pcm_ctl->vd[0].access |=
chip->controls[CONTROL_SPDIF_PCM]->vd[0].access |=
SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO,
&chip->spdif_pcm_ctl->id);
&chip->controls[CONTROL_SPDIF_PCM]->id);
}
if (channel == PCM_SPDIF || channel == PCM_MULTICH)
oxygen_update_spdif_source(chip);