From ff891d604be4d6bb8e7de134292c3246002d42aa Mon Sep 17 00:00:00 2001
From: weihs <weihs@53a565d1-3bb7-0310-b661-cf11e63c67ab>
Date: Sun, 9 Nov 2003 19:46:20 +0000
Subject: [PATCH] sync with driver (addition of functions raw1394_arm_get_buf
 raw1394_arm_set_buf to get and set buffers of mapped address ranges)

git-svn-id: svn://svn.linux1394.org/libraw1394/trunk@137 53a565d1-3bb7-0310-b661-cf11e63c67ab
---
 src/arm.c            | 62 ++++++++++++++++++++++++++++++++++++++++++++
 src/kernel-raw1394.h |  2 ++
 src/raw1394.h        | 30 +++++++++++++++++++++
 3 files changed, 94 insertions(+)

diff --git a/src/arm.c b/src/arm.c
index 546374b..f185495 100644
--- a/src/arm.c
+++ b/src/arm.c
@@ -91,3 +91,65 @@ int raw1394_arm_unregister (struct raw1394_handle *handle, nodeaddr_t start)
         retval = write(handle->fd, &req, sizeof(req));
         return (retval == sizeof(req)) ? 0:-1;
 }
+
+
+/*
+ * AdressRangeMapping SET BUFFER:
+ * start, length .... identifies addressrange
+ * buf .............. pointer to buffer
+ *
+ * This function copies 'length' bytes from user memory area 'buf'
+ * to one ARM block in kernel memory area
+ * with start offset 'start'.
+ *
+ * returnvalue:       0  ... success
+ *                    <0 ... failure, and errno - error code
+ */
+int raw1394_arm_set_buf (struct raw1394_handle *handle, nodeaddr_t start,
+                         size_t length, void *buf)
+{
+        struct raw1394_request req;
+        int status;
+
+        CLEAR_REQ(&req);
+
+        req.type = RAW1394_REQ_ARM_SET_BUF;
+        req.sendb = ptr2int(buf);
+        req.length = length;
+        req.address = start;
+
+        if (write(handle->fd, &req, sizeof(req)) < 0) return -1;
+
+        return 0;
+}
+
+/*
+ * AdressRangeMapping GET BUFFER:
+ * start, length .... identifies addressrange
+ * buf .............. pointer to buffer
+ *
+ * This function copies 'length' bytes from one
+ * ARM block in kernel memory area with start offset `start`
+ * to user memory area 'buf'
+ *
+ * returnvalue:       0  ... success
+ *                    <0 ... failure, and errno - error code
+ */
+int raw1394_arm_get_buf (struct raw1394_handle *handle, nodeaddr_t start,
+                         size_t length, void *buf)
+{
+        struct raw1394_request req;
+        int status;
+
+        CLEAR_REQ(&req);
+
+        req.type = RAW1394_REQ_ARM_GET_BUF;
+        req.recvb = ptr2int(buf);
+        req.length = length;
+        req.address = start;
+
+        if (write(handle->fd, &req, sizeof(req)) < 0) return -1;
+
+        return 0;
+}
+
diff --git a/src/kernel-raw1394.h b/src/kernel-raw1394.h
index e178bda..6563c59 100644
--- a/src/kernel-raw1394.h
+++ b/src/kernel-raw1394.h
@@ -30,6 +30,8 @@
 
 #define RAW1394_REQ_ARM_REGISTER    300
 #define RAW1394_REQ_ARM_UNREGISTER  301
+#define RAW1394_REQ_ARM_SET_BUF     302
+#define RAW1394_REQ_ARM_GET_BUF     303
 
 #define RAW1394_REQ_RESET_NOTIFY    400
 
diff --git a/src/raw1394.h b/src/raw1394.h
index 58ebfd2..997a99a 100644
--- a/src/raw1394.h
+++ b/src/raw1394.h
@@ -377,6 +377,36 @@ int raw1394_arm_register(struct raw1394_handle *handle, nodeaddr_t start,
  */
 int raw1394_arm_unregister(raw1394handle_t handle, nodeaddr_t start);
 
+/*
+ * AdressRangeMapping SET BUFFER:
+ * start, length .... identifies addressrange
+ * buf .............. pointer to buffer
+ *
+ * This function copies 'length' bytes from user memory area 'buf'
+ * to one ARM block in kernel memory area
+ * with start offset 'start'.
+ *
+ * returnvalue:       0  ... success
+ *                    <0 ... failure, and errno - error code
+ */
+int raw1394_arm_set_buf (struct raw1394_handle *handle, nodeaddr_t start,
+                         size_t length, void *buf);
+
+/*
+ * AdressRangeMapping GET BUFFER:
+ * start, length .... identifies addressrange
+ * buf .............. pointer to buffer
+ *
+ * This function copies 'length' bytes from one
+ * ARM block in kernel memory area with start offset `start`
+ * to user memory area 'buf'
+ *
+ * returnvalue:       0  ... success
+ *                    <0 ... failure, and errno - error code
+ */
+int raw1394_arm_get_buf (struct raw1394_handle *handle, nodeaddr_t start,
+                         size_t length, void *buf);
+
 /* 
  * send an echo request to the driver. the driver then send back the
  * same request. raw1394_loop_iterate will return data as return value,