2011/2/20 Mark Goldstein goldstein.mark@gmail.com
I think the Mic part might be the same problem I had. I found out that the following code:
static void via_auto_init_analog_input(struct hda_codec *codec) { struct via_spec *spec = codec->spec; const struct auto_pin_cfg *cfg = &spec->autocfg; unsigned int ctl; int i;
for (i = 0; i < cfg->num_inputs; i++) { hda_nid_t nid = cfg->inputs[i].pin; if (spec->smart51_enabled && is_smart51_pins(spec, nid)) ctl = PIN_OUT; else if (i == AUTO_PIN_MIC) ^^^^^^^^^^^^^^^^^^^^^^^^^ ctl = PIN_VREF50; else ctl = PIN_IN; snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, ctl); }}
configures correctly only the first MIC (in my case it was Rear MIC). Front Mic pin was configured as HiZ. Changing the underlined condition to
else if (cfg->input[i].type == AUTO_PIN_MIC)
resolved the issue for me. (In alsa driver 1.0.23 this code was different, it checked that i <= FRONT_MIC index).
This may fix your vt1708s smart51 since only rear mic and line in are retasked
static int is_smart51_pins(struct via_spec *spec, hda_nid_t pin) { const struct auto_pin_cfg *cfg = &spec->autocfg; int i; if (cfg->line_outs != 1) return 0; for (i = 0; i < cfg->num_inputs; i++) { if (pin == cfg->inputs[i].pin) { switch(cfg->inputs[i].type){ case AUTO_PIN_LINE_IN: return 1; case AUTO_PIN_MIC: if ( strncmp(hda_get_autocfg_input_label(spec->codec,cfg,i),"Rear Mic",8) == 0 ) return 1; else return 0; default: return 0; } } } return 0; }
http://git.alsa-project.org/?p=alsa-kernel.git;a=commit;h=1564b2878f5cf160f6...
Smart 5.1 is for 3-jacks model, to reuse input pins as outputs. While off, they act as "line out" / "line in" / "mic in". While on, they acts as "line out" / "back left/right" / "center/lfe".