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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2014-04-25 22:44:55 +0900
committerTakashi Iwai <tiwai@suse.de>2014-05-26 14:22:14 +0200
commitc68a1c6584d066d0f2b7aa2117d2eddce2d01def (patch)
tree2493f740847f17778ccf1a41430bb5d6291d84ec /sound/firewire/cmp.h
parenta7fa0d047f879bf3c744e9005769183abdf2ec4b (diff)
downloadlinux-c68a1c6584d066d0f2b7aa2117d2eddce2d01def.tar.bz2
ALSA: firewire-lib: Add 'direction' member to 'cmp_connection' structure
This patch adds 'direction' member to 'cmp_connection' structure to indicate the direction of connection. This patch also adds 'direction' argument to cmp_connection_init() function to determine the direction. The cmp_connection_init() function is exported and used in snd-firewire-speakers so this patch also affect it. 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/cmp.h')
-rw-r--r--sound/firewire/cmp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h
index 2320cd44d499..9b58448d5791 100644
--- a/sound/firewire/cmp.h
+++ b/sound/firewire/cmp.h
@@ -7,6 +7,11 @@
struct fw_unit;
+enum cmp_direction {
+ CMP_INPUT = 0,
+ CMP_OUTPUT,
+};
+
/**
* struct cmp_connection - manages an isochronous connection to a device
* @speed: the connection's actual speed
@@ -26,10 +31,12 @@ struct cmp_connection {
__be32 last_pcr_value;
unsigned int pcr_index;
unsigned int max_speed;
+ enum cmp_direction direction;
};
int cmp_connection_init(struct cmp_connection *connection,
struct fw_unit *unit,
+ enum cmp_direction direction,
unsigned int pcr_index);
void cmp_connection_destroy(struct cmp_connection *connection);