Earphone in Nokia RX-51/N900 is connected to left HP output of B part of the TLV320AIC34 dual codec. In RX-51 the codec A is used as a traditional codec and the codec B as an auxiliary device.
Audio from codec A goes via the codec B to earphone: MONO_LOUT of A -> LINE2R of B (B interconnects) -> HPLOUT of B -> Earphone.
Take earphone into use by utilizing the recent ASoC auxiliary and cross-device support.
Signed-off-by: Jarkko Nikula jhnikula@gmail.com --- v2: Uses SOC_DAPM_PIN_SWITCH for implementing the "Earphone" widget and kcontrol. --- sound/soc/omap/rx51.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c index 251afbe..2d7d411 100644 --- a/sound/soc/omap/rx51.c +++ b/sound/soc/omap/rx51.c @@ -242,6 +242,10 @@ static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event), };
+static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = { + SND_SOC_DAPM_SPK("Earphone", NULL), +}; + static const struct snd_soc_dapm_route audio_map[] = { {"Ext Spk", NULL, "HPLOUT"}, {"Ext Spk", NULL, "HPROUT"}, @@ -252,6 +256,11 @@ static const struct snd_soc_dapm_route audio_map[] = { {"Mic Bias 2V", NULL, "DMic"}, };
+static const struct snd_soc_dapm_route audio_mapb[] = { + {"b LINE2R", NULL, "MONO_LOUT"}, + {"Earphone", NULL, "b HPLOUT"}, +}; + static const char *spk_function[] = {"Off", "On"}; static const char *input_function[] = {"ADC", "Digital Mic"}; static const char *jack_function[] = {"Off", "TV-OUT", "Headphone"}; @@ -271,6 +280,10 @@ static const struct snd_kcontrol_new aic34_rx51_controls[] = { rx51_get_jack, rx51_set_jack), };
+static const struct snd_kcontrol_new aic34_rx51_controlsb[] = { + SOC_DAPM_PIN_SWITCH("Earphone"), +}; + static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; @@ -314,6 +327,24 @@ static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) return err; }
+static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm) +{ + int err; + + err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb, + ARRAY_SIZE(aic34_rx51_controlsb)); + if (err < 0) + return err; + + err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb, + ARRAY_SIZE(aic34_dapm_widgetsb)); + if (err < 0) + return 0; + + return snd_soc_dapm_add_routes(dapm, audio_mapb, + ARRAY_SIZE(audio_mapb)); +} + /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link rx51_dai[] = { { @@ -328,11 +359,30 @@ static struct snd_soc_dai_link rx51_dai[] = { }, };
+struct snd_soc_aux_dev rx51_aux_dev[] = { + { + .name = "TLV320AIC34b", + .codec_name = "tlv320aic3x-codec.2-0019", + .init = rx51_aic34b_init, + }, +}; + +static struct snd_soc_codec_conf rx51_codec_conf[] = { + { + .dev_name = "tlv320aic3x-codec.2-0019", + .name_prefix = "b", + }, +}; + /* Audio card */ static struct snd_soc_card rx51_sound_card = { .name = "RX-51", .dai_link = rx51_dai, .num_links = ARRAY_SIZE(rx51_dai), + .aux_dev = rx51_aux_dev, + .num_aux_devs = ARRAY_SIZE(rx51_aux_dev), + .codec_conf = rx51_codec_conf, + .num_configs = ARRAY_SIZE(rx51_codec_conf), };
static struct platform_device *rx51_snd_device;