linux-stable/sound/usb
Pierre-Louis Bossart 630184477e ALSA: usb: fix corrupted pointers due to interface setting change
When a transition occurs between alternate settings that do not use the
same synchronization method, the substream pointers were not reset.
This prevents audio from being played during the second transition.

Identified and tested with M-Audio Transit device
(0763:2006 Midiman M-Audio Transit)

Details of the issue:

First playback to adaptive endpoint:
$ aplay -Dhw:1,0 ~/24_96.wav
Playing WAVE '/home/plb/24_96.wav' : Signed 24 bit Little Endian in 3bytes,
Rate 96000 Hz, Stereo

[ 3169.297556] usb 1-2: setting usb interface 1:1
[ 3169.297568] usb 1-2: Creating new playback data endpoint #3
[ 3169.298563] usb 1-2: Setting params for ep #3 (type 0, 3 urbs), ret=0
[ 3169.298574] usb 1-2: Starting data EP @ffff880035fc8000

first playback to asynchronous endpoint:
$ aplay -Dhw:1,0 ~/16_48.wav
Playing WAVE '/home/plb/16_48.wav' : Signed 16 bit Little Endian,
Rate 48000 Hz, Stereo

[ 3204.520251] usb 1-2: setting usb interface 1:3
[ 3204.520264] usb 1-2: Creating new playback data endpoint #3
[ 3204.520272] usb 1-2: Creating new capture sync endpoint #83
[ 3204.521162] usb 1-2: Setting params for ep #3 (type 0, 4 urbs), ret=0
[ 3204.521177] usb 1-2: Setting params for ep #83 (type 1, 4 urbs), ret=0
[ 3204.521182] usb 1-2: Starting data EP @ffff880035fce000
[ 3204.521204] usb 1-2: Starting sync EP @ffff8800bd616000

second playback to adaptive endpoint: no audio and error on terminal:
$ aplay -Dhw:1,0 ~/24_96.wav
Playing WAVE '/home/plb/24_96.wav' : Signed 24 bit Little Endian in 3bytes,
Rate 96000 Hz, Stereo
aplay: pcm_write:1939: write error: Input/output error

[ 3239.483589] usb 1-2: setting usb interface 1:1
[ 3239.483601] usb 1-2: Re-using EP 3 in iface 1,1 @ffff880035fc8000
[ 3239.484590] usb 1-2: Setting params for ep #3 (type 0, 4 urbs), ret=0
[ 3239.484606] usb 1-2: Setting params for ep #83 (type 1, 4 urbs), ret=0

This last line shows that a sync endpoint is used when it shouldn't.
The sync endpoint is no longer valid and the pointers are corrupted

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-16 08:48:35 +02:00
..
6fire ALSA: 6fire: Convert byte_rev_table uses to bitrev8 2014-11-14 08:01:53 +01:00
bcd2000 ALSA: bcd2000: Make local data static 2015-05-26 13:00:01 +02:00
caiaq ALSA: snd-usb-caiaq: fix stream count check 2015-01-05 08:56:19 +01:00
hiface ALSA: usb: Convert to snd_card_new() with a device pointer 2014-02-12 11:18:00 +01:00
line6 ALSA: line6: Fix -EBUSY error during active monitoring 2015-07-14 15:19:37 +02:00
misc ALSA: pcm: Add snd_pcm_stop_xrun() helper 2014-11-09 18:20:40 +01:00
usx2y ALSA: usx2y: Move UAPI definition into include/uapi/sound/usb_stream.h 2015-01-28 17:33:49 +01:00
card.c Merge branch 'for-linus' into for-next 2014-11-05 15:37:22 +01:00
card.h ALSA: usb: update trigger timestamp on first non-zero URB submitted 2015-02-09 16:02:43 +01:00
clock.c ALSA: usb-audio: Don't attempt to get Lifecam HD-5000 sample rate 2015-02-17 07:20:04 +01:00
clock.h ALSA: usb-audio: UAC2: do clock validity check earlier 2013-04-04 08:30:59 +02:00
debug.h ALSA: usb-audio: make hwc_debug a noop in case HW_CONST_DEBUG is not set 2011-05-18 11:44:35 +02:00
endpoint.c ALSA: pcm: Add snd_pcm_stop_xrun() helper 2014-11-09 18:20:40 +01:00
endpoint.h ALSA: usb-audio: Pass direct struct pointer instead of list_head 2014-11-04 15:09:10 +01:00
format.c ALSA: usb-audio: Fix audio output on Roland SC-D70 sound module 2015-04-21 07:59:10 +02:00
format.h ALSA: usb-audio: store protocol version in struct audioformat 2013-06-27 21:59:47 +02:00
helper.c ALSA: usb-audio: support wireless devices in snd_usb_parse_datainterval 2013-10-07 12:52:21 +02:00
helper.h ALSA: usb-audio: increase control transfer timeout 2011-09-27 09:21:48 +02:00
Kconfig ALSA: move line6 usb driver into sound/usb 2015-01-12 22:29:57 +01:00
Makefile ALSA: line6: Split to each driver 2015-01-20 08:14:17 +01:00
midi.c ALSA: usb-audio: Use setup_timer() and mod_timer() 2015-01-19 11:43:50 +01:00
midi.h ALSA: usb-audio: Whitespace cleanups for sound/usb/midi.* 2014-08-05 20:08:00 +02:00
mixer.c ALSA: usb-audio: Fix parameter block size for UAC2 control requests 2015-08-14 16:26:50 +02:00
mixer.h ALSA: usb-audio: Fix parameter block size for UAC2 control requests 2015-08-14 16:26:50 +02:00
mixer_maps.c ALSA: usb-audio: add dB range mapping for some devices 2015-07-29 09:28:02 +02:00
mixer_quirks.c ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support 2015-04-09 17:20:39 +02:00
mixer_quirks.h ALSA: usb-mixer: factor out quirks 2010-03-12 12:20:26 +01:00
mixer_scarlett.c ALSA: usb-audio: Fix Scarlett 6i6 initialization typo 2014-12-18 08:39:17 +01:00
mixer_scarlett.h ALSA: usb-audio: Scarlett mixer interface for 6i6, 18i6, 18i8 and 18i20 2014-11-13 07:32:39 +01:00
pcm.c ALSA: usb: fix corrupted pointers due to interface setting change 2015-08-16 08:48:35 +02:00
pcm.h ALSA: usb: refine delay information with USB frame counter 2011-09-12 10:30:20 +02:00
power.h ALSA: usbaudio: implement USB autosuspend 2011-03-11 14:59:29 +01:00
proc.c ALSA: usb-audio: proc: use found syncmaxsize to determine feedback format 2013-05-17 08:05:34 +02:00
proc.h
quirks-table.h ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4 2015-07-01 17:29:40 +02:00
quirks.c ALSA: usb-audio: add native DSD support for JLsounds I2SoverUSB 2015-06-08 11:22:21 +02:00
quirks.h ALSA: usb-audio: Don't attempt to get Lifecam HD-5000 sample rate 2015-02-17 07:20:04 +01:00
stream.c ALSA: usb-audio: Use standard printk helpers 2014-02-26 16:45:34 +01:00
stream.h ALSA: snd-usb: re-order code 2011-09-14 17:07:02 +02:00
usbaudio.h ALSA: usb-audio: Fix deadlocks at resuming 2014-05-02 18:17:06 +02:00