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-rw-r--r--sound/pcmcia/vx/vxp_mixer.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/sound/pcmcia/vx/vxp_mixer.c b/sound/pcmcia/vx/vxp_mixer.c
new file mode 100644
index 0000000000..bc21144758
--- /dev/null
+++ b/sound/pcmcia/vx/vxp_mixer.c
@@ -0,0 +1,140 @@
+// 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:
+ err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_level, chip));
+ if (err < 0)
+ return err;
+ break;
+ case VX_TYPE_VXP440:
+ err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_boost, chip));
+ if (err < 0)
+ return err;
+ break;
+ }
+
+ return 0;
+}
+