/*
   * VRFB Rotation Engine
   *
   * Copyright (C) 2009 Nokia Corporation
   * Author: Tomi Valkeinen <tomi.valkeinen@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 xres;
  	u16 yres;
  	u16 xoffset;
  	u16 yoffset;
  	u8 bytespp;
  	bool yuv_mode;
  };

  #ifdef CONFIG_OMAP2_VRFB

  extern bool omap_vrfb_supported(void);

  extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
  extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
  extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
  		u8 bytespp);
  extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
  extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
  extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
  		u16 width, u16 height,
  		unsigned bytespp, bool yuv_mode);
  extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
  extern void omap_vrfb_restore_context(void);

  #else

  static inline bool omap_vrfb_supported(void) { return false; }

  static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
  static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
  static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
  		u8 bytespp) {}
  static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
  		{ return 0; }
  static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
  		{ return 0; }
  static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
  		u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
  static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
  		{ return 0; }
  static inline void omap_vrfb_restore_context(void) {}
  #endif

  #endif /* __VRFB_H */