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authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>2007-02-12 00:55:23 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:44 -0800
commit310d8c11126d21e417206c874c6382c44ece1baa (patch)
treef09e4f821a34346f412689d4da365688fad7ba89 /include/asm-powerpc
parentfbdb3e5be36619c4acf415d870eceab4cbce2850 (diff)
downloadop-kernel-dev-310d8c11126d21e417206c874c6382c44ece1baa.zip
op-kernel-dev-310d8c11126d21e417206c874c6382c44ece1baa.tar.gz
[PATCH] ps3: Virtual Frame Buffer Driver
Add the PS3 Virtual Frame Buffer Driver. As the actual graphics hardware cannot be accessed directly by Linux, ps3fb uses a virtual frame buffer in main memory. The actual screen image is copied to graphics memory by the GPU on every vertical blank, by making a hypervisor call. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: James Simmons <jsimmons@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/Kbuild1
-rw-r--r--include/asm-powerpc/ps3fb.h44
2 files changed, 45 insertions, 0 deletions
diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild
index 703970f..4869513 100644
--- a/include/asm-powerpc/Kbuild
+++ b/include/asm-powerpc/Kbuild
@@ -23,6 +23,7 @@ header-y += linkage.h
header-y += resource.h
header-y += sigcontext.h
header-y += statfs.h
+header-y += ps3fb.h
unifdef-y += a.out.h
unifdef-y += asm-compat.h
diff --git a/include/asm-powerpc/ps3fb.h b/include/asm-powerpc/ps3fb.h
new file mode 100644
index 0000000..3f121fe
--- /dev/null
+++ b/include/asm-powerpc/ps3fb.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2006 Sony Computer Entertainment Inc.
+ * Copyright 2006, 2007 Sony Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _ASM_POWERPC_PS3FB_H_
+#define _ASM_POWERPC_PS3FB_H_
+
+#include <linux/ioctl.h>
+
+/* ioctl */
+#define PS3FB_IOCTL_SETMODE _IOW('r', 1, int) /* set video mode */
+#define PS3FB_IOCTL_GETMODE _IOR('r', 2, int) /* get video mode */
+#define PS3FB_IOCTL_SCREENINFO _IOR('r', 3, int) /* get screen info */
+#define PS3FB_IOCTL_ON _IO('r', 4) /* use IOCTL_FSEL */
+#define PS3FB_IOCTL_OFF _IO('r', 5) /* return to normal-flip */
+#define PS3FB_IOCTL_FSEL _IOW('r', 6, int) /* blit and flip request */
+
+#ifndef FBIO_WAITFORVSYNC
+#define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32) /* wait for vsync */
+#endif
+
+struct ps3fb_ioctl_res {
+ __u32 xres; /* frame buffer x_size */
+ __u32 yres; /* frame buffer y_size */
+ __u32 xoff; /* margine x */
+ __u32 yoff; /* margine y */
+ __u32 num_frames; /* num of frame buffers */
+};
+
+#endif /* _ASM_POWERPC_PS3FB_H_ */
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