From 33b2e1442aeaacabb4e29f8adb31469e87599b16 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Fri, 23 Nov 2018 13:13:03 +0900
Subject: ALSA: firewire-tascam: pick up data of state from tx isochronous
pakcets
Units of TASCAM FireWire series multiplex PCM frames and state of
control surface into the same tx isochronous packets. One isochronous
packet includes a part of the state in a quadlet data. An image of the
state consists of 64 quadlet data.
This commit demultiplexes the state from tx isochronous packets.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/uapi/sound/firewire.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include/uapi/sound')
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index f0a547d86679..b9bc4bb1756b 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -88,4 +88,6 @@ struct snd_firewire_get_info {
* Returns -EBUSY if the driver is already streaming.
*/
+#define SNDRV_FIREWIRE_TASCAM_STATE_COUNT 64
+
#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */
--
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