This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / linux / xenfb.h

diff --git a/include/linux/xenfb.h b/include/linux/xenfb.h
new file mode 100644 (file)
index 0000000..3653c57
--- /dev/null
+++ b/include/linux/xenfb.h
@@ -0,0 +1,108 @@
+/*
+ * linux/include/linux/xenfb.h -- Xen virtual frame buffer device
+ *
+ * Copyright (C) 2005
+ *
+ *      Anthony Liguori <aliguori@us.ibm.com>
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License. See the file COPYING in the main directory of this archive for
+ *  more details.
+ */
+
+#ifndef _LINUX_XENFB_H
+#define _LINUX_XENFB_H
+
+#include <asm/types.h>
+
+/* out events */
+
+#define XENFB_OUT_EVENT_SIZE 40
+
+#define XENFB_TYPE_MOTION 1
+#define XENFB_TYPE_UPDATE 2
+
+struct xenfb_motion        /* currently unused */
+{
+       __u8 type;          /* XENFB_TYPE_MOTION */
+       __u16 x;            /* The new x coordinate */
+       __u16 y;            /* The new y coordinate */
+};
+
+struct xenfb_update
+{
+       __u8 type;          /* XENFB_TYPE_UPDATE */
+       __u16 x;            /* source x */
+       __u16 y;            /* source y */
+       __u16 width;        /* rect width */
+       __u16 height;       /* rect height */
+};
+
+union xenfb_out_event
+{
+       __u8 type;
+       struct xenfb_motion motion;
+       struct xenfb_update update;
+       char _[XENFB_OUT_EVENT_SIZE];
+};
+
+/* in events */
+
+#define XENFB_IN_EVENT_SIZE 40
+
+#define XENFB_TYPE_SET_EVENTS 1
+
+#define XENFB_FLAG_MOTION 1
+#define XENFB_FLAG_UPDATE 2
+#define XENFB_FLAG_COPY 4
+#define XENFB_FLAG_FILL 8
+
+struct xenfb_set_events
+{
+       __u8 type;          /* XENFB_TYPE_SET_EVENTS */
+       __u32 flags;        /* combination of XENFB_FLAG_* */
+};
+
+union xenfb_in_event
+{
+       __u8 type;
+       struct xenfb_set_events set_events;
+       char _[XENFB_OUT_EVENT_SIZE];
+};
+
+/* shared page */
+
+#define XENFB_IN_RING_SIZE 1024
+#define XENFB_IN_RING_LEN (XENFB_IN_RING_SIZE / XENFB_IN_EVENT_SIZE)
+#define XENFB_IN_RING_OFFS 1024
+#define XENFB_IN_RING(page) \
+    ((union xenfb_in_event *)((char *)(page) + XENFB_IN_RING_OFFS))
+#define XENFB_IN_RING_REF(page, idx) \
+    (XENFB_IN_RING((page))[(idx) % XENFB_IN_RING_LEN])
+
+#define XENFB_OUT_RING_SIZE 2048
+#define XENFB_OUT_RING_LEN (XENFB_OUT_RING_SIZE / XENFB_OUT_EVENT_SIZE)
+#define XENFB_OUT_RING_OFFS (XENFB_IN_RING_OFFS + XENFB_IN_RING_SIZE)
+#define XENFB_OUT_RING(page) \
+    ((union xenfb_out_event *)((char *)(page) + XENFB_OUT_RING_OFFS))
+#define XENFB_OUT_RING_REF(page, idx) \
+    (XENFB_OUT_RING((page))[(idx) % XENFB_OUT_RING_LEN])
+
+struct xenfb_page
+{
+       __u16 width;         /* the width of the framebuffer (in pixels) */
+       __u16 height;        /* the height of the framebuffer (in pixels) */
+       __u32 line_length;   /* the length of a row of pixels (in bytes) */
+       __u32 mem_length;    /* the length of the framebuffer (in bytes) */
+       __u8 depth;          /* the depth of a pixel (in bits) */
+
+       unsigned long pd[2];    /* FIXME rename to pgdir? */
+       /* FIXME pd[1] unused at this time, shrink? */
+
+       __u32 in_cons, in_prod;
+       __u32 out_cons, out_prod;
+};
+
+void xenfb_resume(void);
+
+#endif