On Wed, 2018-04-04 at 17:32 +0200, Takashi Iwai wrote: > On Wed, 04 Apr 2018 13:30:12 +0200, > David Woodhouse wrote: > > > > > > I have an HP EliteBook 850 G3 with CX20724: > > > > hdaudioC0D0: CX20724: BIOS auto-probing. > > hdaudioC0D0: action: 0 gpio_led: 0 > > hdaudioC0D0: autoconfig for CX20724: line_outs=1 (0x16/0x0/0x0/0x0/0x0) type:line > > hdaudioC0D0: speaker_outs=1 (0x17/0x0/0x0/0x0/0x0) > > hdaudioC0D0: hp_outs=1 (0x1d/0x0/0x0/0x0/0x0) > > hdaudioC0D0: mono: mono_out=0x0 > > hdaudioC0D0: inputs: > > hdaudioC0D0: Mic=0x19 > > hdaudioC0D0: Internal Mic=0x1a > > hdaudioC0D0: Line=0x18 > > hdaudioC0D0: Enable sync_write for stable communication > > hdaudioC0D0: action: 1 gpio_led: 0 > > hdaudioC0D0: action: 2 gpio_led: 0 > > ... > > input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input21 > > > > The CX20724 datasheet¹ suggests that it supports headset button events > > — at least 'Function A' when the mic pin is shorted to ground, if not > > the other functions. > > > > But it isn't working. Only the jack insertion is reported through the > > corresponding input device, not the button press. I added a printk into > > snd_hda_jack_unsol_event(), and it isn't even being invoked at all for > > the button presses; only insertion/removal. > > > > How do we make this work? > > > > ¹ https://www.tonymacx86.com/attachments/datasheet_cx20724-pdf.203615/ > > > Unfortunately, there is no standard definition for the headset button > handling in HD-audio spec, and each vendor implements in own way > without disclosure. > For example, the datasheet you gave also doesn't shed any light how > it's triggered (the headset button widget NID is empty and no more > information). > > So at this moment, only Conexant people can answer to this question > properly, sorry. Thanks. I think that would be "Synaptics people" now... Andrew, is there any chance you could find a better datasheet for this part please? I see mention of a 'BIOS guide' in what we have so far. Alternatively… David, in https://bugs.launchpad.net/ubuntu/+bug/1198030 you added code which touches registers in the vendor-specific 0x1C NID. Do you have access to something I haven't been able to find, and does it say anything about headset button detection? > Maybe you can try to enable the GPIO unsolicited event and see whether > any unsolicited event is generated. Though, the datasheet says it's > something else individual, but who knows. Hm... forgive my ignorance; how do I do that? FWIW here's the content of /proc/asound/card0/codec#0: Codec: Conexant CX20724 Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x14f150f4 Subsystem Id: 0x103c814d Revision Id: 0x100109 No Modem Function Group found Default PCM: rates [0x140]: 48000 96000 bits [0xa]: 16 24 formats [0x1]: PCM Default Amp-In caps: N/A Default Amp-Out caps: N/A State of AFG node 0x01: Power states: D0 D1 D2 D3 D3cold S3D3cold CLKSTOP EPSS Power: setting=D0, actual=D0 GPIO: io=7, o=0, i=0, unsolicited=1, wake=1 IO[0]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0 IO[1]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0 IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[3]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[4]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[5]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[6]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 Node 0x10 [Audio Output] wcaps 0xc1d: Stereo Amp-Out R/L Control: name="Speaker+LO Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Speaker+LO Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Device: name="CX20724 Analog", type="Audio", device=0 Amp-Out caps: ofs=0x4a, nsteps=0x4a, stepsize=0x03, mute=1 Amp-Out vals: [0x80 0x80] Converter: stream=1, channel=0 PCM: rates [0x540]: 48000 96000 192000 bits [0xa]: 16 24 formats [0x1]: PCM Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x11 [Audio Output] wcaps 0xc1d: Stereo Amp-Out R/L Control: name="Headphone Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Headphone Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Amp-Out caps: ofs=0x4a, nsteps=0x4a, stepsize=0x03, mute=1 Amp-Out vals: [0x3d 0x3d] Converter: stream=1, channel=0 PCM: rates [0x540]: 48000 96000 192000 bits [0xa]: 16 24 formats [0x1]: PCM Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x12 [Beep Generator Widget] wcaps 0x70000c: Mono Amp-Out Control: name="Beep Playback Volume", index=0, device=0 ControlAmp: chs=1, dir=Out, idx=0, ofs=0 Control: name="Beep Playback Switch", index=0, device=0 ControlAmp: chs=1, dir=Out, idx=0, ofs=0 Amp-Out caps: ofs=0x07, nsteps=0x07, stepsize=0x0f, mute=0 Amp-Out vals: [0x03] Node 0x13 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L Control: name="Capture Volume", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Control: name="Capture Switch", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Device: name="CX20724 Analog", type="Audio", device=0 Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1 Amp-In vals: [0x50 0x50] [0x50 0x50] [0x50 0x50] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] Converter: stream=1, channel=0 SDI-Select: 0 PCM: rates [0x140]: 48000 96000 bits [0xa]: 16 24 formats [0x1]: PCM Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 7 0x18 0x19* 0x1a 0x15 0x1d 0x1e 0x1f Node 0x14 [Audio Input] wcaps 0x100d1b: Stereo Amp-In R/L Amp-In caps: ofs=0x4a, nsteps=0x50, stepsize=0x03, mute=1 Amp-In vals: [0x4a 0x4a] [0x4a 0x4a] [0x4a 0x4a] Converter: stream=0, channel=0 SDI-Select: 0 PCM: rates [0x140]: 48000 96000 bits [0xa]: 16 24 formats [0x1]: PCM Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 3 0x1a* 0x15 0x1f Node 0x15 [Vendor Defined Widget] wcaps 0xf0050b: Stereo Amp-In Amp-In caps: ofs=0x4a, nsteps=0x4a, stepsize=0x03, mute=1 Amp-In vals: [0x4a 0x4a] [0x4a 0x4a] Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 2 0x10* 0x11 Node 0x16 [Pin Complex] wcaps 0x400581: Stereo Pincap 0x0001001c: OUT HP EAPD Detect EAPD 0x0: 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 Unsolicited: tag=02, enabled=1 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 2 0x10* 0x11 Node 0x17 [Pin Complex] wcaps 0x400501: Stereo Pincap 0x00010010: OUT EAPD EAPD 0x0: Pin Default 0x91170110: [Fixed] Speaker at Int Rear Conn = Analog, Color = Unknown DefAssociation = 0x1, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x40: OUT Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 2 0x10* 0x11 Node 0x18 [Pin Complex] wcaps 0x40048b: Stereo Amp-In Control: name="Line Boost Volume", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x00 0x00] Pincap 0x00001324: IN Detect Vref caps: HIZ 50 80 Pin Default 0x40f001f0: [N/A] Other at Ext N/A Conn = Unknown, Color = Unknown DefAssociation = 0xf, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x20: IN VREF_HIZ Unsolicited: tag=05, enabled=1 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x19 [Pin Complex] wcaps 0x40048b: Stereo Amp-In Control: name="Mic Boost Volume", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x03 0x03] Pincap 0x00001324: IN Detect Vref caps: HIZ 50 80 Pin Default 0x04a11030: [Jack] Mic at Ext Right Conn = 1/8, Color = Black DefAssociation = 0x3, Sequence = 0x0 Pin-ctls: 0x24: IN VREF_80 Unsolicited: tag=03, enabled=1 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x1a [Pin Complex] wcaps 0x40040b: Stereo Amp-In Control: name="Internal Mic Boost Volume", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x00 0x00] Pincap 0x00000020: IN Pin Default 0x95a60120: [Fixed] Mic at Int Top Conn = Digital, Color = Unknown DefAssociation = 0x2, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x20: IN Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x1b [Vendor Defined Widget] wcaps 0xf00000: Mono Node 0x1c [Vendor Defined Widget] wcaps 0xf00000: Mono Node 0x1d [Pin Complex] wcaps 0x40058b: Stereo Amp-In Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x00 0x00] Pincap 0x0001133c: IN OUT HP EAPD Detect Vref caps: HIZ 50 80 EAPD 0x0: Pin Default 0x04211040: [Jack] HP Out at Ext Right Conn = 1/8, Color = Black DefAssociation = 0x4, Sequence = 0x0 Pin-ctls: 0xc0: OUT HP VREF_HIZ Unsolicited: tag=01, enabled=1 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 2 0x10 0x11* Node 0x1e [Pin Complex] wcaps 0x40048b: Stereo Amp-In Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x00 0x00] Pincap 0x00000024: IN Detect Pin Default 0x40f001f0: [N/A] Other at Ext N/A Conn = Unknown, Color = Unknown DefAssociation = 0xf, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x00: Unsolicited: tag=00, enabled=0 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x1f [Pin Complex] wcaps 0x40040b: Stereo Amp-In Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0 Amp-In vals: [0x00 0x00] Pincap 0x00000020: IN Pin Default 0x40f001f0: [N/A] Other at Ext N/A Conn = Unknown, Color = Unknown DefAssociation = 0xf, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x00: Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x20 [Audio Output] wcaps 0x611: Stereo Digital Converter: stream=0, channel=0 Digital: Digital category: 0x0 IEC Coding Type: 0x0 PCM: rates [0x540]: 48000 96000 192000 bits [0xe]: 16 20 24 formats [0x5]: PCM AC3 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x21 [Pin Complex] wcaps 0x400701: Stereo Digital 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: 0x00: Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 1 0x20 Node 0x22 [Pin Complex] wcaps 0x400501: Stereo Pincap 0x00010010: OUT EAPD EAPD 0x0: Pin Default 0x40f001f0: [N/A] Other at Ext N/A Conn = Unknown, Color = Unknown DefAssociation = 0xf, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x00: Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 2 0x10* 0x11
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