diff options
Diffstat (limited to 'sound/pcmcia/vx/vxp_mixer.c')
| -rw-r--r-- | sound/pcmcia/vx/vxp_mixer.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/sound/pcmcia/vx/vxp_mixer.c b/sound/pcmcia/vx/vxp_mixer.c new file mode 100644 index 000000000..0f59e4cca --- /dev/null +++ b/sound/pcmcia/vx/vxp_mixer.c @@ -0,0 +1,138 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Digigram VXpocket soundcards + * + * VX-pocket mixer + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + */ + +#include <sound/core.h> +#include <sound/control.h> +#include <sound/tlv.h> +#include "vxpocket.h" + +#define MIC_LEVEL_MIN 0 +#define MIC_LEVEL_MAX 8 + +/* + * mic level control (for VXPocket) + */ +static int vx_mic_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = MIC_LEVEL_MAX; + return 0; +} + +static int vx_mic_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct vx_core *_chip = snd_kcontrol_chip(kcontrol); + struct snd_vxpocket *chip = to_vxpocket(_chip); + ucontrol->value.integer.value[0] = chip->mic_level; + return 0; +} + +static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct vx_core *_chip = snd_kcontrol_chip(kcontrol); + struct snd_vxpocket *chip = to_vxpocket(_chip); + unsigned int val = ucontrol->value.integer.value[0]; + + if (val > MIC_LEVEL_MAX) + return -EINVAL; + mutex_lock(&_chip->mixer_mutex); + if (chip->mic_level != ucontrol->value.integer.value[0]) { + vx_set_mic_level(_chip, ucontrol->value.integer.value[0]); + chip->mic_level = ucontrol->value.integer.value[0]; + mutex_unlock(&_chip->mixer_mutex); + return 1; + } + mutex_unlock(&_chip->mixer_mutex); + return 0; +} + +static const DECLARE_TLV_DB_SCALE(db_scale_mic, -21, 3, 0); + +static const struct snd_kcontrol_new vx_control_mic_level = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ), + .name = "Mic Capture Volume", + .info = vx_mic_level_info, + .get = vx_mic_level_get, + .put = vx_mic_level_put, + .tlv = { .p = db_scale_mic }, +}; + +/* + * mic boost level control (for VXP440) + */ +#define vx_mic_boost_info snd_ctl_boolean_mono_info + +static int vx_mic_boost_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct vx_core *_chip = snd_kcontrol_chip(kcontrol); + struct snd_vxpocket *chip = to_vxpocket(_chip); + ucontrol->value.integer.value[0] = chip->mic_level; + return 0; +} + +static int vx_mic_boost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct vx_core *_chip = snd_kcontrol_chip(kcontrol); + struct snd_vxpocket *chip = to_vxpocket(_chip); + int val = !!ucontrol->value.integer.value[0]; + mutex_lock(&_chip->mixer_mutex); + if (chip->mic_level != val) { + vx_set_mic_boost(_chip, val); + chip->mic_level = val; + mutex_unlock(&_chip->mixer_mutex); + return 1; + } + mutex_unlock(&_chip->mixer_mutex); + return 0; +} + +static const struct snd_kcontrol_new vx_control_mic_boost = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Mic Boost", + .info = vx_mic_boost_info, + .get = vx_mic_boost_get, + .put = vx_mic_boost_put, +}; + + +int vxp_add_mic_controls(struct vx_core *_chip) +{ + struct snd_vxpocket *chip = to_vxpocket(_chip); + int err; + + /* mute input levels */ + chip->mic_level = 0; + switch (_chip->type) { + case VX_TYPE_VXPOCKET: + vx_set_mic_level(_chip, 0); + break; + case VX_TYPE_VXP440: + vx_set_mic_boost(_chip, 0); + break; + } + + /* mic level */ + switch (_chip->type) { + case VX_TYPE_VXPOCKET: + if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_level, chip))) < 0) + return err; + break; + case VX_TYPE_VXP440: + if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_boost, chip))) < 0) + return err; + break; + } + + return 0; +} + |