Re: sound on quad powermac/latest powerbooks/imacs

[Eduardo Trápani <mapache@debian.org>]

> > How can I find that out?
>
>
> Try loading my driver, specifically snd-aoa-codec-onyx :P
> Or dive into the device tree, find the layout-id property, and cross
> reference it with the layout id in the Info.plist file from
> AppleOnboardAudio.

Well, I didn't know where to get the Info.plist file (I only have Linux installed).  So I asked somebody with MacOS on the same hardware and the information for audio is:

Built In Sound Card:
	Devices:
		Burr Brown PCM3052
			Inputs and Ouputs:
			Controls:	Mute,Master
			Playthrough:	No
			PluginID:	Onyx

And so it goes on ...  Onyx shows as the pluginID for all.

> My driver will most likely not be able to handle it out of the box,
> since the layout id is unknown to it, so you'd have to add it to
> snd-aoa-fabric-layout.c

The layout-id was 0x56, so I added this:

      /* PowerMac8,2 */
       { .layout_id = 86, .codecs[0] = "onyx", .codecs[1] = "topaz" },

and I added the alias too.
> johannes

Then built and loaded I loaded the modules and this is what I got:

Mar 29 13:26:17 mapache kernel: i2sbus: mapped i2s control registers
Mar 29 13:26:17 mapache kernel: i2sbus: control register contents:
Mar 29 13:26:17 mapache kernel: i2sbus:    fcr0 = 0x8000056
Mar 29 13:26:17 mapache kernel: i2sbus:    cell_control = 0x5b43b71a
Mar 29 13:26:17 mapache kernel: i2sbus:    fcr2 = 0xe7030000
Mar 29 13:26:17 mapache kernel: i2sbus:    fcr3 = 0x7200d607
Mar 29 13:26:17 mapache kernel: i2sbus:    clock_control = 0x0
Mar 29 13:26:17 mapache kernel: i2sbus: found i2s controller
Mar 29 13:26:17 mapache kernel:  ** pmf_call_one(/ht@0,f2000000/pci@2/mac-io@7/cell-enable) **
Mar 29 13:26:17 mapache kernel:  ** pmf_call_one(/ht@0,f2000000/pci@2/mac-io@7/enable) **
Mar 29 13:26:17 mapache kernel:  ** pmf_call_one(/ht@0,f2000000/pci@2/mac-io@7/clock-enable) **
Mar 29 13:26:17 mapache kernel: serial format: 0x41190000
Mar 29 13:26:17 mapache kernel: dws: 0x2000200
Mar 29 13:26:17 mapache kernel: snd-aoa: found bus with layout 86 (using)
Mar 29 13:26:17 mapache kernel: snd-aoa-codec-onyx: found k2-i2c, checking if onyx chip is on it
Mar 29 13:26:17 mapache kernel: low_i2c:xfer() chan=0, addrdir=0x47, mode=4, subsize=1, subaddr=0x43, 1 bytes, bus /ht@0,f2000000/pci@2/mac-io@7/i2c@18000
Mar 29 13:26:17 mapache kernel: low_i2c:kw_handle_interrupt(state_addr, isr: 6)
Mar 29 13:26:17 mapache kernel: low_i2c:KW: NAK on address
Mar 29 13:26:17 mapache kernel: low_i2c:kw_handle_interrupt(state_stop, isr: 6)
Mar 29 13:26:17 mapache kernel: KW: wrong state. Got KW_I2C_IRQ_ADDR, state: state_stop (isr: 06)
Mar 29 13:26:17 mapache kernel: low_i2c:kw_handle_interrupt(state_stop, isr: 4)
Mar 29 13:26:17 mapache kernel: low_i2c:xfer error -5
Mar 29 13:26:17 mapache kernel: snd-aoa-codec-onyx: failed to read control register
Mar 29 13:26:18 mapache kernel: low_i2c:xfer() chan=11, addrdir=0x93, mode=4, subsize=1, subaddr=0x0, 2 bytes, bus /smu@0,0/smu-i2c-control@0/i2c-bus@b


Anything else to try? The following related modules were loaded:

snd_aoa_codec_onyx     13264  0
snd_aoa_fabric_layout     7972  0
snd_aoa                10448  2 snd_aoa_codec_onyx,snd_aoa_fabric_layout
i2sbus                 23872  0
soundbus               11972  2 snd_aoa_fabric_layout,i2sbus
snd_pcm               138060  1 i2sbus
snd_timer              38248  1 snd_pcm
snd_page_alloc         16232  1 snd_pcm
snd                    94648  4 snd_aoa,i2sbus,snd_pcm,snd_timer
soundcore              15344  1 snd



Eduardo.

PD: I'm using kernel 2.6.16-rc1 on PowerMac 8,2 with a couple of patches from Ben and, as you see, the i2c debugging information on.