implement tag matching for rawiso reception

git-svn-id: svn://svn.linux1394.org/libraw1394/trunk@101 53a565d1-3bb7-0310-b661-cf11e63c67ab

3 files changed, 12 insertions, 4 deletions

diff --git a/src/iso.c b/src/iso.c
index bacde60..de9881c 100644
--- a/src/iso.c
+++ b/src/iso.c
@@ -290,15 +290,23 @@ int raw1394_iso_recv_set_channel_mask(raw1394handle_t handle, u_int64_t mask)
 /**
  * raw1394_iso_recv_start - begin isochronous reception
  * @start_on_cycle: isochronous cycle number on which to start (-1 if you don't care)
+ * @tag_mask: mask of tag fields to match (-1 to receive all packets)
+ * @sync: not used, reserved for future implementation
  **/
-int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle)
+int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle, int tag_mask, int sync)
 {
+	int args[3];
+
 	if(!handle->iso_buffer)
 		return -1;
 	if(!handle->iso_recv_handler)
 		return -1;
 
-	if(ioctl(handle->fd, RAW1394_ISO_RECV_START, start_on_cycle))
+	args[0] = start_on_cycle;
+	args[1] = tag_mask;
+	args[2] = sync;
+
+	if(ioctl(handle->fd, RAW1394_ISO_RECV_START, &args[0]))
 		return -1;
 
 	return 0;
diff --git a/src/kernel-raw1394.h b/src/kernel-raw1394.h
index f3b5716..f19afd6 100644
--- a/src/kernel-raw1394.h
+++ b/src/kernel-raw1394.h
@@ -120,7 +120,7 @@ typedef struct arm_request_response {
 /* ioctls */
 #define RAW1394_ISO_XMIT_INIT               1  /* arg: raw1394_iso_status* */
 #define RAW1394_ISO_RECV_INIT               2  /* arg: raw1394_iso_status* */
-#define RAW1394_ISO_RECV_START              3  /* arg: int, starting cycle */
+#define RAW1394_ISO_RECV_START              3  /* arg: int[3], { starting cycle, tag, sync } */
 #define RAW1394_ISO_XMIT_START              8  /* arg: int[2], { starting cycle, prebuffer } */
 #define RAW1394_ISO_STOP                    4
 #define RAW1394_ISO_GET_STATUS              5  /* arg: raw1394_iso_status* */
diff --git a/src/raw1394.h b/src/raw1394.h
index c3e8c04..d0b0794 100644
--- a/src/raw1394.h
+++ b/src/raw1394.h
@@ -118,7 +118,7 @@ int raw1394_iso_recv_unlisten_channel(raw1394handle_t handle, unsigned char chan
 int raw1394_iso_recv_set_channel_mask(raw1394handle_t handle, u_int64_t mask);
 
 int raw1394_iso_xmit_start(raw1394handle_t handle, int start_on_cycle, int prebuffer_packets);
-int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle);
+int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle, int tag_mask, int sync);
 
 void raw1394_iso_stop(raw1394handle_t handle);
 void raw1394_iso_shutdown(raw1394handle_t handle);