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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 22:45:30 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:33:10 +0200 |
| commit | 9b1ee0b2cb8bffdbb3003b1d5205f3ae0592c15a (patch) | |
| tree | 31124c27fddbaca390e63ebb47174ade02952a89 /include/linux/firewire.h | |
| parent | a2b2a7798fb6a5c639189e5c8f608a56fdc7a222 (diff) | |
| download | lwn-9b1ee0b2cb8bffdbb3003b1d5205f3ae0592c15a.tar.gz lwn-9b1ee0b2cb8bffdbb3003b1d5205f3ae0592c15a.zip | |
ALSA: firewire/bebob: Add a workaround for M-Audio special Firewire series
In post commit, a quirk of this firmware about transactions is reported.
This commit apply a workaround for this quirk.
They often fail transactions due to gap_count mismatch. This state is changed
by generating bus reset.
The fw_schedule_bus_reset() is an exported symbol in firewire-core. But there
are no header for public. This commit moves its prototype from
drivers/firewire/core.h to include/linux/firewire.h.
This mismatch still affects bus management before generating this bus reset.
It still takes a time to call driver's probe() because transactions are still
often failed.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/linux/firewire.h')
| -rw-r--r-- | include/linux/firewire.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/firewire.h b/include/linux/firewire.h index c3683bdf28fe..d4b7683c722d 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -367,6 +367,9 @@ static inline int fw_stream_packet_destination_id(int tag, int channel, int sy) return tag << 14 | channel << 8 | sy; } +void fw_schedule_bus_reset(struct fw_card *card, bool delayed, + bool short_reset); + struct fw_descriptor { struct list_head link; size_t length; |