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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2014-04-25 17:44:44 +0400
committerTakashi Iwai <tiwai@suse.de>2014-05-26 16:11:42 +0400
commit3ff7e8f0d455d7c1d8417ad3e71c324d8e704fc9 (patch)
tree63972214fdc48d1b29c73abd138d7dadef7e974c /sound/firewire/amdtp.h
parentb445db440cf77ead4312b1918545abe06f6ee75b (diff)
downloadlinux-3ff7e8f0d455d7c1d8417ad3e71c324d8e704fc9.tar.xz
ALSA: firewire-lib: Add 'direction' member to 'amdtp_stream' structure
This patch adds 'direction' member to amdtp_stream structure to indicate its direction. This patch also adds 'direction' argument to amdtp_stream_init() function to determine its direction. The amdtp_stream_init() function is exported and used by firewire-speakers and dice so this patch also affects them. This patch just add them. Actual implementation will be done by followed patches. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/amdtp.h')
-rw-r--r--sound/firewire/amdtp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 60028c7fc144..019134edb9f7 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -48,9 +48,15 @@ struct fw_unit;
struct fw_iso_context;
struct snd_pcm_substream;
+enum amdtp_stream_direction {
+ AMDTP_OUT_STREAM = 0,
+ AMDTP_IN_STREAM
+};
+
struct amdtp_stream {
struct fw_unit *unit;
enum cip_flags flags;
+ enum amdtp_stream_direction direction;
struct fw_iso_context *context;
struct mutex mutex;
@@ -85,6 +91,7 @@ struct amdtp_stream {
};
int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
+ enum amdtp_stream_direction dir,
enum cip_flags flags);
void amdtp_stream_destroy(struct amdtp_stream *s);