OpenCloudOS-Kernel/sound/firewire/dice
Takashi Sakamoto d5553026b5 ALSA: dice: update isochronous resources when starting packet streaming after bus-reset
After bus reset, isochronous resource manager releases all of allocated
isochronous resources. The nodes to transfer isochronous packet should
request reallocation of the resources.

However, between the bus-reset and invocation of 'struct fw_driver.update'
handler, ALSA PCM application can detect this situation by XRUN because
the target device cancelled to transmit packets once bus-reset occurs.

Due to the above mechanism, ALSA fireface driver just stops packet
streaming in the update handler, thus pcm.prepare handler should
request the reallocation.

This commit requests the reallocation in pcm.prepare callback when
bus generation is changed.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-06-11 16:02:10 +02:00
..
Makefile ALSA: dice: add stream format parameters for PreSonus FireStudio 2019-05-20 07:46:43 +02:00
dice-alesis.c ALSA: dice: fix wrong copy to rx parameters for Alesis iO26 2018-08-06 09:35:32 +02:00
dice-extension.c ALSA: dice: use extended protocol to detect available stream formats 2018-05-02 16:02:00 +02:00
dice-hwdep.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
dice-interface.h ALSA: dice: improve support for ancient firmware for DICE 2018-04-24 17:18:59 +02:00
dice-midi.c ALSA: dice: reserve/release isochronous resources in pcm.hw_params/hw_free callbacks 2019-06-11 16:02:09 +02:00
dice-mytek.c ALSA: dice: add stream format parameters for Mytek devices 2018-05-18 08:53:51 +02:00
dice-pcm.c ALSA: dice: reserve/release isochronous resources in pcm.hw_params/hw_free callbacks 2019-06-11 16:02:09 +02:00
dice-presonus.c ALSA: dice: add stream format parameters for PreSonus FireStudio 2019-05-20 07:46:43 +02:00
dice-proc.c ALSA: firewire: Remove superfluous snd_info_register() calls 2019-02-06 18:11:38 +01:00
dice-stream.c ALSA: dice: update isochronous resources when starting packet streaming after bus-reset 2019-06-11 16:02:10 +02:00
dice-tcelectronic.c ALSA: dice: unuse second stream for MIDI conformant data channel for TC Electronic models 2018-05-27 08:32:08 +02:00
dice-transaction.c ALSA: dice: improve support for ancient firmware for DICE 2018-04-24 17:18:59 +02:00
dice.c ALSA: dice: add stream format parameters for PreSonus FireStudio 2019-05-20 07:46:43 +02:00
dice.h ALSA: dice: reserve/release isochronous resources in pcm.hw_params/hw_free callbacks 2019-06-11 16:02:09 +02:00