From 6ac98fd9fd300bc1b8969b6e7a4cf251fa85cdd4 Mon Sep 17 00:00:00 2001
From: aeb <aeb@53a565d1-3bb7-0310-b661-cf11e63c67ab>
Date: Sun, 6 Aug 2000 02:44:00 +0000
Subject: [PATCH] Added support for isochronous sending.

git-svn-id: svn://svn.linux1394.org/libraw1394/trunk@34 53a565d1-3bb7-0310-b661-cf11e63c67ab
---
 NEWS                 |  1 +
 src/kernel-raw1394.h |  1 +
 src/readwrite.c      | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+)

diff --git a/NEWS b/NEWS
index deca55f..223a30c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,7 @@
 
 Version 0.8:
 
+- functions for isochronous sending
 - new raw1394_reset_bus() function to reset the bus
 
 Version 0.7:
diff --git a/src/kernel-raw1394.h b/src/kernel-raw1394.h
index e496301..4f8b3f7 100644
--- a/src/kernel-raw1394.h
+++ b/src/kernel-raw1394.h
@@ -18,6 +18,7 @@
 #define RAW1394_REQ_ASYNC_WRITE   101
 #define RAW1394_REQ_LOCK          102
 #define RAW1394_REQ_LOCK64        103
+#define RAW1394_REQ_ISO_SEND      104
 
 #define RAW1394_REQ_ISO_LISTEN    200
 #define RAW1394_REQ_FCP_LISTEN    201
diff --git a/src/readwrite.c b/src/readwrite.c
index 8670920..1e12b6c 100644
--- a/src/readwrite.c
+++ b/src/readwrite.c
@@ -94,6 +94,27 @@ int raw1394_start_lock(struct raw1394_handle *handle, nodeid_t node,
         return (int)write(handle->fd, req, sizeof(*req));
 }
 
+int raw1394_start_iso_write(struct raw1394_handle *handle, unsigned int channel,
+                            unsigned int tag, unsigned int sy,
+                            unsigned int speed, size_t length, quadlet_t *data,
+                            unsigned long rawtag)
+{
+        struct raw1394_request *req = &handle->req;
+
+        CLEAR_REQ(req);
+
+        req->type = RAW1394_REQ_ISO_SEND;
+        req->generation = handle->generation;
+        req->tag = tag;
+
+        req->address = ((__u64)channel << 48) | speed;
+        req->misc = (tag << 16) | sy;
+        req->length = length;
+        req->sendb = data;
+
+        return (int)write(handle->fd, req, sizeof(*req));
+}
+
 
 #define SYNCFUNC_VARS                                                     \
         struct sync_cb_data sd = { 0, 0 };                                \
@@ -142,5 +163,17 @@ int raw1394_lock(struct raw1394_handle *handle, nodeid_t node, nodeaddr_t addr,
         SYNCFUNC_BODY;
 }
 
+int raw1394_iso_write(struct raw1394_handle *handle, unsigned int channel,
+                      unsigned int tag, unsigned int sy, unsigned int speed,
+                      size_t length, quadlet_t *data)
+{
+        SYNCFUNC_VARS;
+
+        err = raw1394_start_iso_write(handle, channel, tag, sy, speed, length,
+                                      data, (unsigned long)&rh);
+
+        SYNCFUNC_BODY;
+}
+
 #undef SYNCFUNC_VARS
 #undef SYNCFUNC_BODY