summaryrefslogtreecommitdiffstats
path: root/sound/pci
diff options
context:
space:
mode:
authorClemens Ladisch <clemens@ladisch.de>2009-09-28 11:19:19 +0200
committerTakashi Iwai <tiwai@suse.de>2009-09-28 11:54:37 +0200
commita361e247b4e36c567b44fef354ab595458422d44 (patch)
tree55f0b0694a332eca559bef2fb220b64e12fb57b7 /sound/pci
parent6f0de3ce068e48b033b5e4d0822b47218e9d206c (diff)
downloadlinux-a361e247b4e36c567b44fef354ab595458422d44.tar.bz2
sound: virtuoso: add headphone impedance control
Add a mixer control to adjust the headphone amplifier output for headphones with different impedances. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/oxygen/xonar_pcm179x.c110
1 files changed, 99 insertions, 11 deletions
diff --git a/sound/pci/oxygen/xonar_pcm179x.c b/sound/pci/oxygen/xonar_pcm179x.c
index e17ee5e8e510..cf94e4432a3f 100644
--- a/sound/pci/oxygen/xonar_pcm179x.c
+++ b/sound/pci/oxygen/xonar_pcm179x.c
@@ -173,6 +173,8 @@ struct xonar_pcm179x {
struct xonar_generic generic;
unsigned int dacs;
u8 pcm1796_regs[4][5];
+ bool hp_active;
+ s8 hp_gain_offset;
u8 cs2000_fun_cfg_1;
};
@@ -249,13 +251,17 @@ static void pcm1796_registers_init(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
+ s8 gain_offset;
+ gain_offset = data->hp_active ? data->hp_gain_offset : 0;
for (i = 0; i < data->dacs; ++i) {
/* set ATLD before ATL/ATR */
pcm1796_write(chip, i, 18,
data->pcm1796_regs[0][18 - PCM1796_REG_BASE]);
- pcm1796_write(chip, i, 16, chip->dac_volume[i * 2]);
- pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]);
+ pcm1796_write(chip, i, 16, chip->dac_volume[i * 2]
+ + gain_offset);
+ pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]
+ + gain_offset);
pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
pcm1796_write(chip, i, 20,
data->pcm1796_regs[0][20 - PCM1796_REG_BASE]);
@@ -352,6 +358,7 @@ static void xonar_st_init_common(struct oxygen *chip)
data->generic.anti_pop_delay = 100;
data->generic.output_enable_bit = GPIO_ST_OUTPUT_ENABLE;
data->dacs = chip->model.private_data ? 4 : 1;
+ data->hp_gain_offset = 2*-18;
pcm1796_init(chip);
@@ -495,10 +502,14 @@ static void update_pcm1796_volume(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
+ s8 gain_offset;
+ gain_offset = data->hp_active ? data->hp_gain_offset : 0;
for (i = 0; i < data->dacs; ++i) {
- pcm1796_write_cached(chip, i, 16, chip->dac_volume[i * 2]);
- pcm1796_write_cached(chip, i, 17, chip->dac_volume[i * 2 + 1]);
+ pcm1796_write_cached(chip, i, 16, chip->dac_volume[i * 2]
+ + gain_offset);
+ pcm1796_write_cached(chip, i, 17, chip->dac_volume[i * 2 + 1]
+ + gain_offset);
}
}
@@ -606,6 +617,7 @@ static int st_output_switch_put(struct snd_kcontrol *ctl,
struct snd_ctl_elem_value *value)
{
struct oxygen *chip = ctl->private_data;
+ struct xonar_pcm179x *data = chip->model_data;
u16 gpio_old, gpio;
mutex_lock(&chip->mutex);
@@ -623,16 +635,83 @@ static int st_output_switch_put(struct snd_kcontrol *ctl,
break;
}
oxygen_write16(chip, OXYGEN_GPIO_DATA, gpio);
+ data->hp_active = gpio & GPIO_ST_HP;
+ update_pcm1796_volume(chip);
mutex_unlock(&chip->mutex);
return gpio != gpio_old;
}
-static const struct snd_kcontrol_new st_output_switch = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Analog Output",
- .info = st_output_switch_info,
- .get = st_output_switch_get,
- .put = st_output_switch_put,
+static int st_hp_volume_offset_info(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_info *info)
+{
+ static const char *const names[3] = {
+ "< 64 ohms", "64-300 ohms", "300-600 ohms"
+ };
+
+ info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ info->count = 1;
+ info->value.enumerated.items = 3;
+ if (info->value.enumerated.item > 2)
+ info->value.enumerated.item = 2;
+ strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
+ return 0;
+}
+
+static int st_hp_volume_offset_get(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_value *value)
+{
+ struct oxygen *chip = ctl->private_data;
+ struct xonar_pcm179x *data = chip->model_data;
+
+ mutex_lock(&chip->mutex);
+ if (data->hp_gain_offset < 2*-6)
+ value->value.enumerated.item[0] = 0;
+ else if (data->hp_gain_offset < 0)
+ value->value.enumerated.item[0] = 1;
+ else
+ value->value.enumerated.item[0] = 2;
+ mutex_unlock(&chip->mutex);
+ return 0;
+}
+
+
+static int st_hp_volume_offset_put(struct snd_kcontrol *ctl,
+ struct snd_ctl_elem_value *value)
+{
+ static const s8 offsets[] = { 2*-18, 2*-6, 0 };
+ struct oxygen *chip = ctl->private_data;
+ struct xonar_pcm179x *data = chip->model_data;
+ s8 offset;
+ int changed;
+
+ if (value->value.enumerated.item[0] > 2)
+ return -EINVAL;
+ offset = offsets[value->value.enumerated.item[0]];
+ mutex_lock(&chip->mutex);
+ changed = offset != data->hp_gain_offset;
+ if (changed) {
+ data->hp_gain_offset = offset;
+ update_pcm1796_volume(chip);
+ }
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+static const struct snd_kcontrol_new st_controls[] = {
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Analog Output",
+ .info = st_output_switch_info,
+ .get = st_output_switch_get,
+ .put = st_output_switch_put,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Headphones Impedance Playback Enum",
+ .info = st_hp_volume_offset_info,
+ .get = st_hp_volume_offset_get,
+ .put = st_hp_volume_offset_put,
+ },
};
static void xonar_line_mic_ac97_switch(struct oxygen *chip,
@@ -671,7 +750,16 @@ static int xonar_d2_mixer_init(struct oxygen *chip)
static int xonar_st_mixer_init(struct oxygen *chip)
{
- return snd_ctl_add(chip->card, snd_ctl_new1(&st_output_switch, chip));
+ unsigned int i;
+ int err;
+
+ for (i = 0; i < ARRAY_SIZE(st_controls); ++i) {
+ err = snd_ctl_add(chip->card,
+ snd_ctl_new1(&st_controls[i], chip));
+ if (err < 0)
+ return err;
+ }
+ return 0;
}
static const struct oxygen_model model_xonar_d2 = {