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path: root/sound/drivers/pcsp/pcsp_mixer.c
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Diffstat (limited to 'sound/drivers/pcsp/pcsp_mixer.c')
-rw-r--r--sound/drivers/pcsp/pcsp_mixer.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/sound/drivers/pcsp/pcsp_mixer.c b/sound/drivers/pcsp/pcsp_mixer.c
new file mode 100644
index 000000000..f1e1defc0
--- /dev/null
+++ b/sound/drivers/pcsp/pcsp_mixer.c
@@ -0,0 +1,163 @@
+/*
+ * PC-Speaker driver for Linux
+ *
+ * Mixer implementation.
+ * Copyright (C) 2001-2008 Stas Sergeev
+ */
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include "pcsp.h"
+
+
+static int pcsp_enable_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int pcsp_enable_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] = chip->enable;
+ return 0;
+}
+
+static int pcsp_enable_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ int changed = 0;
+ int enab = ucontrol->value.integer.value[0];
+ if (enab != chip->enable) {
+ chip->enable = enab;
+ changed = 1;
+ }
+ return changed;
+}
+
+static int pcsp_treble_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = 1;
+ uinfo->value.enumerated.items = chip->max_treble + 1;
+ if (uinfo->value.enumerated.item > chip->max_treble)
+ uinfo->value.enumerated.item = chip->max_treble;
+ sprintf(uinfo->value.enumerated.name, "%lu",
+ (unsigned long)PCSP_CALC_RATE(uinfo->value.enumerated.item));
+ return 0;
+}
+
+static int pcsp_treble_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.enumerated.item[0] = chip->treble;
+ return 0;
+}
+
+static int pcsp_treble_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ int changed = 0;
+ int treble = ucontrol->value.enumerated.item[0];
+ if (treble != chip->treble) {
+ chip->treble = treble;
+#if PCSP_DEBUG
+ printk(KERN_INFO "PCSP: rate set to %li\n", PCSP_RATE());
+#endif
+ changed = 1;
+ }
+ return changed;
+}
+
+static int pcsp_pcspkr_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int pcsp_pcspkr_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] = chip->pcspkr;
+ return 0;
+}
+
+static int pcsp_pcspkr_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol);
+ int changed = 0;
+ int spkr = ucontrol->value.integer.value[0];
+ if (spkr != chip->pcspkr) {
+ chip->pcspkr = spkr;
+ changed = 1;
+ }
+ return changed;
+}
+
+#define PCSP_MIXER_CONTROL(ctl_type, ctl_name) \
+{ \
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+ .name = ctl_name, \
+ .info = pcsp_##ctl_type##_info, \
+ .get = pcsp_##ctl_type##_get, \
+ .put = pcsp_##ctl_type##_put, \
+}
+
+static struct snd_kcontrol_new snd_pcsp_controls_pcm[] = {
+ PCSP_MIXER_CONTROL(enable, "Master Playback Switch"),
+ PCSP_MIXER_CONTROL(treble, "BaseFRQ Playback Volume"),
+};
+
+static struct snd_kcontrol_new snd_pcsp_controls_spkr[] = {
+ PCSP_MIXER_CONTROL(pcspkr, "Beep Playback Switch"),
+};
+
+static int snd_pcsp_ctls_add(struct snd_pcsp *chip,
+ struct snd_kcontrol_new *ctls, int num)
+{
+ int i, err;
+ struct snd_card *card = chip->card;
+ for (i = 0; i < num; i++) {
+ err = snd_ctl_add(card, snd_ctl_new1(ctls + i, chip));
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
+int snd_pcsp_new_mixer(struct snd_pcsp *chip, int nopcm)
+{
+ int err;
+ struct snd_card *card = chip->card;
+
+ if (!nopcm) {
+ err = snd_pcsp_ctls_add(chip, snd_pcsp_controls_pcm,
+ ARRAY_SIZE(snd_pcsp_controls_pcm));
+ if (err < 0)
+ return err;
+ }
+ err = snd_pcsp_ctls_add(chip, snd_pcsp_controls_spkr,
+ ARRAY_SIZE(snd_pcsp_controls_spkr));
+ if (err < 0)
+ return err;
+
+ strcpy(card->mixername, "PC-Speaker");
+
+ return 0;
+}