/* mic_autoswitch hook */
static void olpc_xo_automic(struct hda_codec *codec,
struct hda_jack_callback *jack)
{
struct conexant_spec *spec = codec->spec;
/* in DC mode, we don't handle automic */
if (!spec->dc_enable)
snd_hda_gen_mic_autoswitch(codec, jack);
olpc_xo_update_mic_pins(codec);
if (spec->dc_enable)
olpc_xo_update_mic_boost(codec);
}
/* pcm_capture hook */
static void olpc_xo_capture_hook(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream,
int action)
{
struct conexant_spec *spec = codec->spec;
/* toggle spec->recording flag and update mic pins accordingly
* for turning on/off LED
*/
switch (action) {
case HDA_GEN_PCM_ACT_PREPARE:
spec->recording = 1;
olpc_xo_update_mic_pins(codec);
break;
case HDA_GEN_PCM_ACT_CLEANUP:
spec->recording = 0;
olpc_xo_update_mic_pins(codec);
break;
}
}
static int olpc_xo_dc_mode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct conexant_spec *spec = codec->spec;
int dc_enable = !!ucontrol->value.integer.value[0];
if (dc_enable == spec->dc_enable)
return 0;
spec->dc_enable = dc_enable;
olpc_xo_update_mic_pins(codec);
olpc_xo_update_mic_boost(codec);
return 1;
}
/* mic_autoswitch hook */
static void olpc_xo_automic(struct hda_codec *codec, struct hda_jack_tbl *jack)
{
struct conexant_spec *spec = codec->spec;
int saved_cached_write = codec->cached_write;
codec->cached_write = 1;
/* in DC mode, we don't handle automic */
if (!spec->dc_enable)
snd_hda_gen_mic_autoswitch(codec, jack);
olpc_xo_update_mic_pins(codec);
snd_hda_codec_flush_cache(codec);
codec->cached_write = saved_cached_write;
if (spec->dc_enable)
olpc_xo_update_mic_boost(codec);
}
static int olpc_xo_dc_bias_enum_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct conexant_spec *spec = codec->spec;
const struct hda_input_mux *imux = &olpc_xo_dc_bias;
unsigned int idx;
idx = ucontrol->value.enumerated.item[0];
if (idx >= imux->num_items)
idx = imux->num_items - 1;
if (spec->dc_input_bias == idx)
return 0;
spec->dc_input_bias = idx;
if (spec->dc_enable)
olpc_xo_update_mic_pins(codec);
return 1;
}
