On Mon, Feb 23, 2009 at 10:54:36AM +0200, Takashi Iwai wrote: > At Sat, 21 Feb 2009 17:28:21 +0100, > I wrote: > > > > Regarding the default pin configurations. > > > > I made a series of patches to add the interface to change the default > > > > pincfg values dynamically via hwdep sysfs. The patches are found in > > > > test/hda-pincfg branch of sound git tree > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git > > > > > > > > and included in the very latest alsa-driver-unstable snapshot > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-unstable-snapshot.tar.gz > > > > > > > > Basically, you can get / set the default pincfg values on the fly, and > > > > trigger the codec reconfiguration after that. > > > > > > > > The init_pin_configs file shows the initial default pincfgs set by BIOS. > > > > > > > > # cat /sys/class/sound/hwC0D0/init_pin_configs > > > > 0x14 0x9993013f > > > > 0x15 0x01014c10 > > > > 0x16 0x99030120 > > > > 0x18 0x01a19c30 > > > > 0x19 0x02a11c31 > > > > 0x1a 0x01813c32 > > > > 0x1b 0x02211c1f > > > > 0x1c 0x99330133 > > > > 0x1d 0x411111f0 > > > > 0x1e 0x411111f0 > > > > 0x1f 0x411111f0 > > > > > > > > Then, you can override the default value by writing to > > > > override_pin_configs sysfs file. > > > > > > > > # cat /sys/class/sound/hwC0D0/override_pin_configs > > > > # echo 0x1d 0x02a11c30 > /sys/class/sound/hwC0D0/override_pin_configs > > > > # cat /sys/class/sound/hwC0D0/override_pin_configs > > > > 0x1d 0x02a11c30 > > > > > > > > Note that this value won't appear in init_pin_configs. > > > > > > > > Also, there is another file, cur_pin_configs. This contains the > > > > pincfgs that are set by the driver explicitly. For example, > > > > the static pincfg table in patch_sigmatel.c appears here. > > > > > > > > Then you can trigger the codec reconfiguration by > > > > > > > > # echo 1 > /sys/class/sound/hwC0D0/reconfig > > > > > > > > This will re-setup the driver based on the given pin configs. > > > > > > Cool! This interface will greatly ease the developer-user interactions. > > > > > > Without knowing this feature, I had to write a patch for Paulo, > > > and compile/verify it before sending it to him. Paulo also have to > > > pull the kernel source, apply the patch, compile and run it... > > > > > > Now you turned that tedious process into two simple echo commands :-) > > > > > > > Unfortunately, in the current scenario, it can't override the static > > > > pincfg table in the driver like in patch_sigmatel.c. It's just for > > > > fixing and BIOS setup. > > > > > > Unfortunately patch_sigmatel has a long list of static pincfgs, i.e.: > > > > > > static unsigned int ref927x_pin_configs[14] = { > > > 0x02214020, 0x02a19080, 0x0181304e, 0x01014010, > > > 0x01a19040, 0x01011012, 0x01016011, 0x0101201f, > > > 0x183301f0, 0x18a001f0, 0x18a001f0, 0x01442070, > > > 0x01c42190, 0x40000100, > > > }; > > > > > > This effectively prohibits itself from being dynamically reconfigured > > > via the override_pin_configs interface... > > > > Right. Considering the implementation again, I think it must be > > relatively easy to fix that. Just changing the order of the evaluation > > of pincfg, and add the check not to overwrite the value. > > > > I'll work on it in the next week. > > Fixed now on sound-unstable tree, together with renaming of override_pin > and cur_pin to user_pin and driver_pin. > > It'd be appreciated if someone can test it with a device with > Sigmatel/IDT (as I have no such hardware)... Hi Takashi, Here are the good behaviors: - the driver_pin_configs matches the numbers defined in source code - the init_pin_configs/user_pin_configs will be exactly restored between module reloading - setting user_pin_configs and doing reconfig did changed the 0x0c pin from output to input. However, - after reconfig, Surround, Center and LFE channels are muted and have to be turned on again in alsamixer. - if reconfig while playing audio, it will trigger a panic: [ 355.810682] ALSA sound/pci/hda/hda_hwdep.c:167: hda-codec: reconfiguring [ 355.817969] ALSA sound/core/timer.c:809: timer ffff88003a8038b8 is busy? [ 355.825058] ALSA sound/core/device.c:102: device free ffff88003a620160 (from stac92xx_free+0x62/0xa0 [snd_hda_codec_idt]), not found [ 355.833556] general protection fault: 0000 [#1] SMP [ 355.833559] last sysfs file: /sys/devices/pci0000:00/0000:00:1b.0/sound/card0/hwC0D2/reconfig [ 355.833561] CPU 3 [ 355.833563] Modules linked in: snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc [last unloaded: snd_hda_codec] [ 355.833572] Pid: 0, comm: swapper Not tainted 2.6.29-rc3 #5 [ 355.833574] RIP: 0010:[<ffffffffa0052588>] [<ffffffffa0052588>] snd_pcm_period_elapsed+0x38/0x410 [snd_pcm] [ 355.833584] RSP: 0018:ffff88003b4cfe80 EFLAGS: 00010002 [ 355.833586] RAX: 0000000000000003 RBX: ffff88003a591458 RCX: ffffffff81a90210 [ 355.833588] RDX: 0000000000009d9c RSI: ffff8800041699a0 RDI: ffff8800396af098 [ 355.833589] RBP: ffff88003b4cfec0 R08: 0000000000000001 R09: 0000000000000001 [ 355.833591] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000000001a0 [ 355.833592] R13: ffff8800396af098 R14: 6b6b6b6b6b6b6b6b R15: 0000000080000010 [ 355.833594] FS: 0000000000000000(0000) GS:ffff88003bbfe210(0000) knlGS:0000000000000000 [ 355.833596] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [ 355.833598] CR2: 00007fb7ea522558 CR3: 0000000039856000 CR4: 00000000000406e0 [ 355.833600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 355.833601] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 355.833603] Process swapper (pid: 0, threadinfo ffff88003b4c8000, task ffff88003b4c4440) [ 355.833604] Stack: [ 355.833605] ffff88003b4cfea0 ffffffff811a38af ffff88003a5f92b8 ffff88003a591458 [ 355.833609] 00000000000001a0 0000000000000004 ffff88003a5f92b8 0000000080000010 [ 355.833612] ffff88003b4cff10 ffffffffa00ba63e ffff88003b4c4440 ffff88003a5f9300 [ 355.833615] Call Trace: [ 355.833617] <IRQ> <0> [<ffffffff811a38af>] ? _raw_spin_unlock+0x7f/0xb0 [ 355.833623] [<ffffffffa00ba63e>] azx_interrupt+0x18e/0x1a0 [snd_hda_intel] [ 355.833629] [<ffffffff8108ead5>] handle_IRQ_event+0x35/0x80 [ 355.833633] [<ffffffff810905b2>] handle_fasteoi_irq+0x82/0x100 [ 355.833636] [<ffffffff8100f175>] do_IRQ+0xb5/0x1b0 [ 355.833639] [<ffffffff8100d193>] ret_from_intr+0x0/0x2e [ 355.833642] <EOI> <0>Code: 89 5d d8 4c 89 65 e0 4c 89 75 f0 4c 89 7d f8 49 89 fd 48 85 ff 0f 84 c8 02 00 00 4c 8b b7 a8 00 00 00 4d 85 f6 0f 84 b8 02 00 00 <49> 8b 86 a8 02 00 00 48 85 c0 74 02 ff d0 48 c7 c7 80 c9 05 a0 [ 355.833665] RIP [<ffffffffa0052588>] snd_pcm_period_elapsed+0x38/0x410 [snd_pcm] [ 355.833672] RSP <ffff88003b4cfe80> [ 355.833676] ---[ end trace 5c74b30f4153ef47 ]--- [ 355.833677] Kernel panic - not syncing: Fatal exception in interrupt [ 355.833681] ------------[ cut here ]------------ [ 355.833682] WARNING: at kernel/smp.c:299 smp_call_function_many+0x219/0x280() [ 355.833684] Hardware name: [ 355.833685] Modules linked in: snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc [last unloaded: snd_hda_codec] [ 355.833693] Pid: 0, comm: swapper Tainted: G D 2.6.29-rc3 #5 [ 355.833694] Call Trace: [ 355.833695] <IRQ> [<ffffffff81044b10>] warn_slowpath+0xd0/0x130 [ 355.833702] [<ffffffff8106ce0d>] ? trace_hardirqs_off+0xd/0x10 [ 355.833706] [<ffffffff814437cf>] ? _spin_lock_irqsave+0x2f/0x90 [ 355.833708] [<ffffffff81443488>] ? _spin_unlock_irqrestore+0x68/0x70 [ 355.833711] [<ffffffff8106cd59>] ? trace_hardirqs_off_caller+0x29/0xd0 [ 355.833714] [<ffffffff811a38af>] ? _raw_spin_unlock+0x7f/0xb0 [ 355.833716] [<ffffffff814434b6>] ? _spin_unlock+0x26/0x30 [ 355.833719] [<ffffffff8106ce0d>] ? trace_hardirqs_off+0xd/0x10 [ 355.833722] [<ffffffff81440c50>] ? __mutex_unlock_slowpath+0x130/0x1a0 [ 355.833725] [<ffffffff8106ce0d>] ? trace_hardirqs_off+0xd/0x10 [ 355.833727] [<ffffffff81440c50>] ? __mutex_unlock_slowpath+0x130/0x1a0 [ 355.833729] [<ffffffff81440cc9>] ? mutex_unlock+0x9/0x10 [ 355.833732] [<ffffffff8107f934>] ? crash_kexec+0x74/0x100 [ 355.833735] [<ffffffff81443488>] ? _spin_unlock_irqrestore+0x68/0x70 [ 355.833738] [<ffffffff81078ad9>] smp_call_function_many+0x219/0x280 [ 355.833741] [<ffffffff81013f10>] ? stop_this_cpu+0x0/0x40 [ 355.833743] [<ffffffff81443488>] ? _spin_unlock_irqrestore+0x68/0x70 [ 355.833746] [<ffffffff81078b60>] smp_call_function+0x20/0x30 [ 355.833749] [<ffffffff8101f5e0>] native_smp_send_stop+0x30/0x90 [ 355.833753] [<ffffffff8143f50a>] panic+0xaf/0x16f [ 355.833755] [<ffffffff81443488>] ? _spin_unlock_irqrestore+0x68/0x70 [ 355.833758] [<ffffffff8106ce0d>] ? trace_hardirqs_off+0xd/0x10 [ 355.833760] [<ffffffff81443488>] ? _spin_unlock_irqrestore+0x68/0x70 [ 355.833763] [<ffffffff81061147>] ? down_trylock+0x37/0x50 [ 355.833765] [<ffffffff810456d1>] ? console_unblank+0x21/0x90 [ 355.833768] [<ffffffff81444dcc>] oops_end+0xec/0x100 [ 355.833771] [<ffffffff810103f6>] die+0x56/0x90 [ 355.833773] [<ffffffff81444928>] do_general_protection+0x158/0x180 [ 355.833775] [<ffffffff81443ea5>] general_protection+0x25/0x30 [ 355.833782] [<ffffffffa0052588>] ? snd_pcm_period_elapsed+0x38/0x410 [snd_pcm] [ 355.833785] [<ffffffff811a38af>] ? _raw_spin_unlock+0x7f/0xb0 [ 355.833789] [<ffffffffa00ba63e>] azx_interrupt+0x18e/0x1a0 [snd_hda_intel] [ 355.833792] [<ffffffff8108ead5>] handle_IRQ_event+0x35/0x80 [ 355.833795] [<ffffffff810905b2>] handle_fasteoi_irq+0x82/0x100 [ 355.833798] [<ffffffff8100f175>] do_IRQ+0xb5/0x1b0 [ 355.833800] [<ffffffff8100d193>] ret_from_intr+0x0/0x2e [ 355.833801] <EOI> <4>---[ end trace 5c74b30f4153ef48 ]--- [ 355.833807] Rebooting in 10 seconds.. Thanks, Fengguang --- wfg@hp ~% cat /sys/class/sound/hwC0D2/init_pin_configs 0x0a 0x0221401f 0x0b 0x02a19020 0x0c 0x01113014 0x0d 0x01114010 0x0e 0x01a19030 0x0f 0x01111012 0x10 0x01116011 0x11 0x40f000f0 0x12 0x40f000f0 0x13 0x40f000f0 0x14 0x40f000f0 0x22 0x40f000f0 0x23 0x01451140 0x24 0x40f000f0 wfg@hp ~% cat /sys/class/sound/hwC0D2/driver_pin_configs wfg@hp ~% cat /sys/class/sound/hwC0D2/user_pin_configs wfg@hp ~% head /proc/asound/card0/codec\#2 Codec: IDT 92HD73E1X5 Address: 2 Vendor Id: 0x111d7676 Subsystem Id: 0x80865002 Revision Id: 0x100202 No Modem Function Group found Default PCM: rates [0x5e0]: 44100 48000 88200 96000 192000 bits [0xe]: 16 20 24 formats [0x1]: PCM root@hp /home/wfg# modprobe snd-hda-intel model=ref root@hp /home/wfg# cat /sys/class/sound/hwC0D2/init_pin_configs [ 1 ] :-( 0x0a 0x0221401f 0x0b 0x02a19020 0x0c 0x01113014 0x0d 0x01114010 0x0e 0x01a19030 0x0f 0x01111012 0x10 0x01116011 0x11 0x40f000f0 0x12 0x40f000f0 0x13 0x40f000f0 0x14 0x40f000f0 0x22 0x40f000f0 0x23 0x01451140 0x24 0x40f000f0 root@hp /home/wfg# cat /sys/class/sound/hwC0D2/driver_pin_configs 0x0a 0x02214030 0x0b 0x02a19040 0x0c 0x01a19020 0x0d 0x02214030 0x0e 0x0181302e 0x0f 0x01014010 0x10 0x01014020 0x11 0x01014030 0x12 0x02319040 0x13 0x90a000f0 0x14 0x90a000f0 0x22 0x01452050 0x23 0x01452050 root@hp /home/wfg# cat /sys/class/sound/hwC0D2/user_pin_configs root@hp /home/wfg# echo 0x0a 0x02214030 > /sys/class/sound/hwC0D2/user_pin_configs root@hp /home/wfg# cat /sys/class/sound/hwC0D2/user_pin_configs 0x0a 0x02214030 root@hp /home/wfg# echo 1 > /sys/class/sound/hwC0D2/reconfig root@hp /home/wfg# cat /sys/class/sound/hwC0D2/user_pin_configs 0x0a 0x02214030 root@hp /home/wfg# cat /sys/class/sound/hwC0D2/driver_pin_configs 0x0a 0x02214030 0x0b 0x02a19040 0x0c 0x01a19020 0x0d 0x02214030 0x0e 0x0181302e 0x0f 0x01014010 0x10 0x01014020 0x11 0x01014030 0x12 0x02319040 0x13 0x90a000f0 0x14 0x90a000f0 0x22 0x01452050 0x23 0x01452050 root@hp /home/wfg# cat /sys/class/sound/hwC0D2/init_pin_configs 0x0a 0x0221401f 0x0b 0x02a19020 0x0c 0x01113014 0x0d 0x01114010 0x0e 0x01a19030 0x0f 0x01111012 0x10 0x01116011 0x11 0x40f000f0 0x12 0x40f000f0 0x13 0x40f000f0 0x14 0x40f000f0 0x22 0x40f000f0 0x23 0x01451140 0x24 0x40f000f0 root@hp /home/wfg# rmmod snd_hda_intel snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_codec root@hp /home/wfg# modprobe snd-hda-intel root@hp /home/wfg# echo 0x0c 0x01813021 > /sys/class/sound/hwC0D2/user_pin_configs root@hp /home/wfg# echo 1 > /sys/class/sound/hwC0D2/reconfig root@hp /home/wfg# alsamixer _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
