From 204b216691b2d74e100bc321654ddadd2ff710af Mon Sep 17 00:00:00 2001 From: Maxim Levitsky maximlevitsky@gmail.com Date: Tue, 28 Aug 2007 01:06:00 +0300 Subject: [PATCH] HDA: add support for analog loopback to STAC9204/9205/922x/927x
--- sound/pci/hda/patch_sigmatel.c | 59 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 12b318e..a1f55d1 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -128,6 +128,7 @@ struct sigmatel_spec { /* i/o switches */ unsigned int io_switch[2]; unsigned int clfe_swap; + unsigned int aloopback;
struct hda_pcm pcm_rec[2]; /* PCM information */
@@ -277,6 +278,50 @@ static int stac92xx_mux_enum_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e spec->mux_nids[adc_idx], &spec->cur_mux[adc_idx]); }
+static int stac92xx_aloopback_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 stac92xx_aloopback_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->aloopback; + return 0; +} + +static int stac92xx_aloopback_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 dac_mode; + + spec->aloopback = ucontrol->value.integer.value[0]; + + dac_mode = snd_hda_codec_read(codec, codec->afg, 0, + kcontrol->private_value & 0xFFFF, 0x0); + + if (spec->aloopback) + dac_mode |= 0x40; + else + dac_mode &= ~0x40; + + snd_hda_codec_write(codec, codec->afg, 0, + kcontrol->private_value >> 16, dac_mode); + + return 1; +} + + static struct hda_verb stac9200_core_init[] = { /* set dac0mux for dac converter */ { 0x07, AC_VERB_SET_CONNECT_SEL, 0x00}, @@ -327,6 +372,17 @@ static struct hda_verb stac9205_core_init[] = { .put = stac92xx_mux_enum_put, \ }
+#define STAC_ANALOG_LOOPBACK(verb_read,verb_write) \ + { \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = "Analog Loopback", \ + .count = 1, \ + .info = stac92xx_aloopback_info, \ + .get = stac92xx_aloopback_get, \ + .put = stac92xx_aloopback_put, \ + .private_value = verb_read | (verb_write << 16), \ + } +
static struct snd_kcontrol_new stac9200_mixer[] = { HDA_CODEC_VOLUME("Master Playback Volume", 0xb, 0, HDA_OUTPUT), @@ -358,6 +414,7 @@ static struct snd_kcontrol_new stac922x_mixer[] = { /* This needs to be generated dynamically based on sequence */ static struct snd_kcontrol_new stac9227_mixer[] = { STAC_INPUT_SOURCE, + STAC_ANALOG_LOOPBACK(0xFEB, 0x7EB), HDA_CODEC_VOLUME("Capture Volume", 0x15, 0x0, HDA_OUTPUT), HDA_CODEC_MUTE("Capture Switch", 0x1b, 0x0, HDA_OUTPUT), { } /* end */ @@ -365,6 +422,7 @@ static struct snd_kcontrol_new stac9227_mixer[] = {
static struct snd_kcontrol_new stac927x_mixer[] = { STAC_INPUT_SOURCE, + STAC_ANALOG_LOOPBACK(0xFEB, 0x7EB), HDA_CODEC_VOLUME("InMux Capture Volume", 0x15, 0x0, HDA_OUTPUT), HDA_CODEC_VOLUME("InVol Capture Volume", 0x18, 0x0, HDA_INPUT), HDA_CODEC_MUTE("ADCMux Capture Switch", 0x1b, 0x0, HDA_OUTPUT), @@ -381,6 +439,7 @@ static struct snd_kcontrol_new stac9205_mixer[] = { .put = stac92xx_dmux_enum_put, }, STAC_INPUT_SOURCE, + STAC_ANALOG_LOOPBACK(0xFE0, 0x7E0), HDA_CODEC_VOLUME("InMux Capture Volume", 0x19, 0x0, HDA_OUTPUT), HDA_CODEC_VOLUME("InVol Capture Volume", 0x1b, 0x0, HDA_INPUT), HDA_CODEC_MUTE("ADCMux Capture Switch", 0x1d, 0x0, HDA_OUTPUT),