* Tomi Valkeinen tomi.valkei...@nokia.com [090805 17:19]:
VRFB rotation engine is a block in OMAP2/3 that offers 12 independent
contexts that can be used for framebuffer rotation.
Each context has a backend area of real memory, where it stores the
pixels in undisclosed format. This memory is offered to users via 4
virtual memory areas, which see the same memory area in different
rotation angles (0, 90, 180 and 270 degrees).
Signed-off-by: Tomi Valkeinen tomi.valkei...@nokia.com
---
arch/arm/plat-omap/Kconfig |3 +
arch/arm/plat-omap/Makefile|1 +
arch/arm/plat-omap/include/mach/vrfb.h | 46 +
arch/arm/plat-omap/vrfb.c | 281
4 files changed, 331 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/plat-omap/include/mach/vrfb.h
create mode 100644 arch/arm/plat-omap/vrfb.c
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index ca06037..2d6ae55 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -186,6 +186,9 @@ config OMAP_SERIAL_WAKE
config OMAP2_VRAM
bool
+config OMAP2_VRFB
+ bool
+
endmenu
endif
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 0472bbe..462edf3 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -26,3 +26,4 @@ obj-y += $(i2c-omap-m) $(i2c-omap-y)
obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox.o
obj-$(CONFIG_OMAP2_VRAM) += vram.o
+obj-$(CONFIG_OMAP2_VRFB) += vrfb.o
Can you please place this file under drivers/video?
diff --git a/arch/arm/plat-omap/include/mach/vrfb.h
b/arch/arm/plat-omap/include/mach/vrfb.h
new file mode 100644
index 000..8790612
--- /dev/null
+++ b/arch/arm/plat-omap/include/mach/vrfb.h
@@ -0,0 +1,46 @@
+/*
+ * VRFB Rotation Engine
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen tomi.valkei...@nokia.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __OMAP_VRFB_H__
+#define __OMAP_VRFB_H__
+
+#define OMAP_VRFB_LINE_LEN 2048
+
+struct vrfb {
+ u8 context;
+ void __iomem *vaddr[4];
+ unsigned long paddr[4];
+ u16 xoffset;
+ u16 yoffset;
+ u8 bytespp;
+};
+
+extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_suspend_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_resume_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
+ u8 bytespp);
+extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
+ u16 width, u16 height,
+ unsigned bytespp, bool yuv_mode);
+extern void omap_vrfb_restore_context(void);
+
+#endif /* __VRFB_H */
diff --git a/arch/arm/plat-omap/vrfb.c b/arch/arm/plat-omap/vrfb.c
new file mode 100644
index 000..240058f
--- /dev/null
+++ b/arch/arm/plat-omap/vrfb.c
@@ -0,0 +1,281 @@
+/*
+ * VRFB Rotation Engine
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen tomi.valkei...@nokia.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include linux/kernel.h
+#include linux/module.h
+#include linux/ioport.h
+#include linux/io.h
+#include linux/bitops.h
+#include linux/mutex.h
+
+#include mach/io.h
+#include mach/vrfb.h
+/*#define DEBUG*/
+
+#ifdef DEBUG
+#define DBG(format, ...) pr_debug(VRFB: format, ## __VA_ARGS__)
+#else
+#define DBG(format, ...)
+#endif
+
+#define SMS_ROT_VIRT_BASE(context, rot) \
+ (((context = 4) ? 0xD000 : 0x7000) \
+ + (0x400 * (context)) \
+ + (0x100 * (rot)))
+
+#define OMAP_VRFB_SIZE
