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Subject[PATCH] ALSA: add support for Macbook Air 2,1 internal speaker.
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Date
From: Reimundo Heluani <rheluani@gmail.com>

Add support for Macbook Air 2,1 (late 2008) internal speaker and
headphones. Create a "mba21" model for snd-hda-intel.

Signed-off-by: Reimundo Heluani <rheluani@gmail.com>

---
Still missing internal microphone support

--- linux-2.6/sound/pci/hda/patch_realtek.c.orig 2010-02-23
00:36:16.000000000 -0800
+++ linux-2.6/sound/pci/hda/patch_realtek.c 2010-02-23
00:44:35.000000000 -0800
@@ -207,6 +207,7 @@ enum {
ALC882_ASUS_A7J,
ALC882_ASUS_A7M,
ALC885_MACPRO,
+ ALC885_MBA21,
ALC885_MBP3,
ALC885_MB5,
ALC885_IMAC24,
@@ -6852,6 +6853,13 @@ static struct hda_channel_mode alc882_si
{ 8, alc882_sixstack_ch8_init },
};

+
+/* Macbook Air 2,1 */
+
+static struct hda_channel_mode alc885_mba21_ch_modes[1] = {
+ { 2, NULL },
+};
+
/*
* macbook pro ALC885 can switch LineIn to LineOut without losing Mic
*/
@@ -7123,6 +7131,15 @@ static struct snd_kcontrol_new alc882_ba
{ } /* end */
};

+/* Macbook Air 2,1 same control for HP and internal Speaker */
+
+static struct snd_kcontrol_new alc885_mba21_mixer[] = {
+ HDA_CODEC_VOLUME("Speaker Playback Volume", 0x0c, 0x00,
HDA_OUTPUT),
+ HDA_BIND_MUTE("Speaker Playback Switch", 0x0c, 0x02, HDA_OUTPUT),
+ { }
+};
+
+
static struct snd_kcontrol_new alc885_mbp3_mixer[] = {
HDA_CODEC_VOLUME("Speaker Playback Volume", 0x0c, 0x00, HDA_OUTPUT),
HDA_BIND_MUTE ("Speaker Playback Switch", 0x0c, 0x02, HDA_INPUT),
@@ -7562,6 +7579,29 @@ static struct hda_verb alc885_mb5_init_v
{ }
};

+
+static struct hda_verb alc885_mba21_init_verbs[] = {
+ /*Internal and HP Speaker Mixer*/
+ {0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+ {0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
+ {0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
+ /*Internal Speaker Pin (0x0c)*/
+ {0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, (PIN_OUT |
AC_PINCTL_VREF_50) },
+ {0x18, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+ {0x18, AC_VERB_SET_CONNECT_SEL, 0x00},
+ /* HP Pin: output 0 (0x0e) */
+ {0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, 0xc4},
+ {0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+ {0x14, AC_VERB_SET_CONNECT_SEL, 0x00},
+ {0x14, AC_VERB_SET_UNSOLICITED_ENABLE, (ALC880_HP_EVENT |
AC_USRSP_EN)},
+ /* Line in (is hp when jack connected)*/
+ {0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, AC_PINCTL_VREF_50},
+ {0x19, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+
+ { }
+ };
+
+
/* Macbook Pro rev3 */
static struct hda_verb alc885_mbp3_init_verbs[] = {
/* Front mixer: unmute input/output amp left and right (volume = 0) */
@@ -7724,6 +7764,17 @@ static void alc885_imac24_setup(struct h
spec->autocfg.speaker_pins[1] = 0x1a;
}

+/* Macbook Air 2,1 */
+static void alc885_mba21_setup(struct hda_codec *codec)
+{
+ struct alc_spec *spec = codec->spec;
+
+ spec->autocfg.hp_pins[0] = 0x14;
+ spec->autocfg.speaker_pins[0] = 0x18;
+}
+
+
+
static void alc885_mbp3_setup(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
@@ -8938,6 +8989,7 @@ static const char *alc882_models[ALC882_
[ALC882_ASUS_A7M] = "asus-a7m",
[ALC885_MACPRO] = "macpro",
[ALC885_MB5] = "mb5",
+ [ALC885_MBA21] = "mba21",
[ALC885_MBP3] = "mbp3",
[ALC885_IMAC24] = "imac24",
[ALC885_IMAC91] = "imac91",
@@ -9172,6 +9224,18 @@ static struct alc_config_preset alc882_p
.input_mux = &alc882_capture_source,
.dig_out_nid = ALC882_DIGOUT_NID,
},
+ [ALC885_MBA21] = {
+ .mixers = { alc885_mba21_mixer },
+ .init_verbs = { alc885_mba21_init_verbs, alc880_gpio1_init_verbs },
+ .num_dacs = 2,
+ .dac_nids = alc882_dac_nids,
+ .channel_mode = alc885_mba21_ch_modes,
+ .num_channel_mode = ARRAY_SIZE(alc885_mba21_ch_modes),
+ .input_mux = &alc882_capture_source,
+ .unsol_event = alc_automute_amp_unsol_event,
+ .setup = alc885_mba21_setup,
+ .init_hook = alc_automute_amp,
+ },
[ALC885_MBP3] = {
.mixers = { alc885_mbp3_mixer, alc882_chmode_mixer },
.init_verbs = { alc885_mbp3_init_verbs,



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