[alsa-devel] Thinkpad T400 - internal mic doesn't work, can't set CAPTURE - schematics included

[Raymond Yau]

2013-2-28 上午1:58 於 "Arkadiusz Miśkiewicz" <arekm at maven.pl> 寫道：
>
>
> Hi,
>
> My Thinkpad T400 (2764CTO model) doesn't have ability to set CAPTURE on
> microphone inputs with alsa. Most likely some quirk is missing.
>
> The laptop has internal microphone, microphone in input, headphones out
output
> and 2 internal speakers. That's all.
>
> Is uses Conexant CX20561_15Z internally and there is detailed T400
schematic
> available:
> http://kythuatphancung.com/download/lenovo-thinkpad-t400-schematic-
> diagram.html?dl
> (for audio look around page 43).
>
> Kernels 3.7.x, fresh 3.8 - no luck. Tried even linux-next from today but
it
> dies early on alsa unrelated issues.
>
> I've tried model options laptop, hp, hp-dv6736, hp-700, toshiba, ideapad,
> auto. None of these work fine. With model=hp-700 I can set CAPTURE but it
> doesn't work (silent audio is captured using arecord or in google
hangout).
> External mic connected also doesn't work with these setups.
>
> http://www.alsa-project.org/db/?f=394ff4cdca33e75c8a47203d42b89d8de36deca7
> [3.8 kernel]
>
> http://www.alsa-project.org/db/?f=302877e50f99835075d038207f6db0dfd89873b0
> [3.7 kernel]
>
> Thinkpad is 2764CTO model exactly.
>
> I can test various hacks, patches etc easily. Could someone look at
schematic
> and provide quirks to test?
>

Seem those driver pin config lost in hda_proc.c

/sys/class/sound/hwC0D0/driver_pin_configs:
0x16 0x042140ff
0x17 0x21a11000
0x19 0x2121103f
0x1c 0x21440100

Node 0x17 [Pin Complex] wcaps 0x40048b: Stereo Amp-In
  Control: name="Dock Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Control: name="Dock Mic Jack", index=0, device=0
  Amp-In caps: ofs=0x00, nsteps=0x04, stepsize=0x27, mute=0
  Amp-In vals:  [0x00 0x00]
  Pincap 0x00001224: IN Detect
    Vref caps: 50 80
  Pin Default 0x61a190f0: [N/A] Mic at Sep Rear
    Conn = 1/8, Color = Pink
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=04, enabled=1
  Power states:  D0 D1 D2 D3
  Power: setting=D0, actual=D0

Node 0x19 [Pin Complex] wcaps 0x400581: Stereo
  Control: name="Dock Headphone Jack", index=0, device=0
  Pincap 0x00000014: OUT Detect
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=01, enabled=1
  Power states:  D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 2
     0x10 0x11*


Node 0x1c [Pin Complex] wcaps 0x400701: Stereo Digital
  Control: name="SPDIF Phantom Jack", index=0, device=0
  Pincap 0x00000010: OUT
  Pin Default 0x40f001f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Power states:  D0 D1 D2 D3
  Power: setting=D0, actual=D0
  Connection: 1
     0x12