ALSA: hda - Add Bass Speaker switch for HP dv7

The bass speaker is controlled via GPIO5.

Tested-by: Wael Nasreddine <mla@nasreddine.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 0bafea9d51069912fcc4ba65cb57931aa264baae..a4526d008042794419badabbdc6596db0d71533b 100644 (file)
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -5402,6 +5402,54 @@ static int stac92hd71bxx_connected_smuxes(struct hda_codec *codec,
                return 0;
 }
 
+/* HP dv7 bass switch - GPIO5 */
+#define stac_hp_bass_gpio_info snd_ctl_boolean_mono_info
+static int stac_hp_bass_gpio_get(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+       struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct sigmatel_spec *spec = codec->spec;
+       ucontrol->value.integer.value[0] = !!(spec->gpio_data & 0x20);
+       return 0;
+}
+
+static int stac_hp_bass_gpio_put(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+       struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct sigmatel_spec *spec = codec->spec;
+       unsigned int gpio_data;
+
+       gpio_data = (spec->gpio_data & ~0x20) |
+               (ucontrol->value.integer.value[0] ? 0x20 : 0);
+       if (gpio_data == spec->gpio_data)
+               return 0;
+       spec->gpio_data = gpio_data;
+       stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, spec->gpio_data);
+       return 1;
+}
+
+static struct snd_kcontrol_new stac_hp_bass_sw_ctrl = {
+       .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+       .info = stac_hp_bass_gpio_info,
+       .get = stac_hp_bass_gpio_get,
+       .put = stac_hp_bass_gpio_put,
+};
+
+static int stac_add_hp_bass_switch(struct hda_codec *codec)
+{
+       struct sigmatel_spec *spec = codec->spec;
+
+       if (!stac_control_new(spec, &stac_hp_bass_sw_ctrl,
+                             "Bass Speaker Playback Switch", 0))
+               return -ENOMEM;
+
+       spec->gpio_mask |= 0x20;
+       spec->gpio_dir |= 0x20;
+       spec->gpio_data |= 0x20;
+       return 0;
+}
+
 static int patch_stac92hd71bxx(struct hda_codec *codec)
 {
        struct sigmatel_spec *spec;
@@ -5642,6 +5690,15 @@ again:
                return err;
        }
 
+       /* enable bass on HP dv7 */
+       if (spec->board_config == STAC_HP_DV5) {
+               unsigned int cap;
+               cap = snd_hda_param_read(codec, 0x1, AC_PAR_GPIO_CAP);
+               cap &= AC_GPIO_IO_COUNT;
+               if (cap >= 6)
+                       stac_add_hp_bass_switch(codec);
+       }
+
        codec->proc_widget_hook = stac92hd7x_proc_hook;
 
        return 0;