ALSA: isight: adjust for new queueing API

cladisch · tiwai · commit cf6f1ff17f56 · 2011-06-17T11:37:29.000+02:00
Since commit 13882a8 (optimize iso queueing by setting wake only after the last packet), drivers are required to call fw_iso_context_queue_flush() after queueing a batch of packets. The missing call would have an effect only if the controller queue underruns, but then the DMA would stop completely. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
@@ -209,6 +209,7 @@ static void isight_packet(struct fw_iso_context *context, u32 cycle,
 		isight->packet_index = -1;
 		return;
 	}
+	fw_iso_context_queue_flush(isight->context);
 
 	if (++index >= QUEUE_LENGTH)
 		index = 0;

Original file line number	Diff line number	Diff line change
`@@ -209,6 +209,7 @@ static void isight_packet(struct fw_iso_context *context, u32 cycle,`
`209`	`209`	`isight->packet_index = -1;`
`210`	`210`	`return;`
`211`	`211`	`}`
	`212`	`+ fw_iso_context_queue_flush(isight->context);`
`212`	`213`
`213`	`214`	`if (++index >= QUEUE_LENGTH)`
`214`	`215`	`index = 0;`