diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-alsa.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-alsa.c | 86 |
1 files changed, 73 insertions, 13 deletions
diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c index 141dadf7cf1..40ffd7a5579 100644 --- a/drivers/media/video/cx88/cx88-alsa.c +++ b/drivers/media/video/cx88/cx88-alsa.c @@ -39,6 +39,7 @@ #include <sound/pcm_params.h> #include <sound/control.h> #include <sound/initval.h> +#include <sound/tlv.h> #include "cx88.h" #include "cx88-reg.h" @@ -82,6 +83,7 @@ typedef struct cx88_audio_dev snd_cx88_card_t; + /**************************************************************************** Module global static vars ****************************************************************************/ @@ -545,8 +547,8 @@ static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) /**************************************************************************** CONTROL INTERFACE ****************************************************************************/ -static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *info) +static int snd_cx88_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *info) { info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; info->count = 2; @@ -556,9 +558,8 @@ static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol, return 0; } -/* OK - TODO: test it */ -static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *value) +static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); struct cx88_core *core=chip->core; @@ -573,8 +574,8 @@ static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol, } /* OK - TODO: test it */ -static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *value) +static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) { snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); struct cx88_core *core=chip->core; @@ -605,14 +606,67 @@ static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol, return changed; } -static struct snd_kcontrol_new snd_cx88_capture_volume = { +static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0); + +static struct snd_kcontrol_new snd_cx88_volume = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .name = "Playback Volume", + .info = snd_cx88_volume_info, + .get = snd_cx88_volume_get, + .put = snd_cx88_volume_put, + .tlv.p = snd_cx88_db_scale, +}; + +static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); + struct cx88_core *core = chip->core; + u32 bit = kcontrol->private_value; + + value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit); + return 0; +} + +static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); + struct cx88_core *core = chip->core; + u32 bit = kcontrol->private_value; + int ret = 0; + u32 vol; + + spin_lock_irq(&chip->reg_lock); + vol = cx_read(AUD_VOL_CTL); + if (value->value.integer.value[0] != !(vol & bit)) { + vol ^= bit; + cx_write(AUD_VOL_CTL, vol); + ret = 1; + } + spin_unlock_irq(&chip->reg_lock); + return ret; +} + +static struct snd_kcontrol_new snd_cx88_dac_switch = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Capture Volume", - .info = snd_cx88_capture_volume_info, - .get = snd_cx88_capture_volume_get, - .put = snd_cx88_capture_volume_put, + .name = "Playback Switch", + .info = snd_ctl_boolean_mono_info, + .get = snd_cx88_switch_get, + .put = snd_cx88_switch_put, + .private_value = (1<<8), }; +static struct snd_kcontrol_new snd_cx88_source_switch = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Capture Switch", + .info = snd_ctl_boolean_mono_info, + .get = snd_cx88_switch_get, + .put = snd_cx88_switch_put, + .private_value = (1<<6), +}; /**************************************************************************** Basic Flow for Sound Devices @@ -762,7 +816,13 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci, if (err < 0) goto error; - err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip)); + err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip)); + if (err < 0) + goto error; + err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip)); + if (err < 0) + goto error; + err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip)); if (err < 0) goto error; |