LXR linux/include/video/omapvrfb.h

   1/*
   2 * VRFB Rotation Engine
   3 *
   4 * Copyright (C) 2009 Nokia Corporation
   5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 *
  11 * This program is distributed in the hope that it will be useful, but
  12 * WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License along
  17 * with this program; if not, write to the Free Software Foundation, Inc.,
  18 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19 */
  20
  21#ifndef __OMAP_VRFB_H__
  22#define __OMAP_VRFB_H__
  23
  24#define OMAP_VRFB_LINE_LEN 2048
  25
  26struct vrfb {
  27        u8 context;
  28        void __iomem *vaddr[4];
  29        unsigned long paddr[4];
  30        u16 xres;
  31        u16 yres;
  32        u16 xoffset;
  33        u16 yoffset;
  34        u8 bytespp;
  35        bool yuv_mode;
  36};
  37
  38#ifdef CONFIG_OMAP2_VRFB
  39extern bool omap_vrfb_supported(void);
  40extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
  41extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
  42extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
  43                u8 bytespp);
  44extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
  45extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
  46extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
  47                u16 width, u16 height,
  48                unsigned bytespp, bool yuv_mode);
  49extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
  50extern void omap_vrfb_restore_context(void);
  51
  52#else
  53static inline bool omap_vrfb_supported(void) { return false; }
  54static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
  55static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
  56static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
  57                u8 bytespp) {}
  58static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
  59                { return 0; }
  60static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
  61                { return 0; }
  62static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
  63                u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
  64static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
  65                { return 0; }
  66static inline void omap_vrfb_restore_context(void) {}
  67#endif
  68#endif /* __VRFB_H */
  69