include/video/omapvrfb.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * VRFB Rotation Engine
   4  *
   5  * Copyright (C) 2009 Nokia Corporation
   6  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
   7  */
   8
   9 #ifndef __OMAP_VRFB_H__
  10 #define __OMAP_VRFB_H__
  11
  12 #define OMAP_VRFB_LINE_LEN 2048
  13
  14 struct vrfb {
  15         u8 context;
  16         void __iomem *vaddr[4];
  17         unsigned long paddr[4];
  18         u16 xres;
  19         u16 yres;
  20         u16 xoffset;
  21         u16 yoffset;
  22         u8 bytespp;
  23         bool yuv_mode;
  24 };
  25
  26 #ifdef CONFIG_OMAP2_VRFB
  27 extern bool omap_vrfb_supported(void);
  28 extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
  29 extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
  30 extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
  31                 u8 bytespp);
  32 extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
  33 extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
  34 extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
  35                 u16 width, u16 height,
  36                 unsigned bytespp, bool yuv_mode);
  37 extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
  38 extern void omap_vrfb_restore_context(void);
  39
  40 #else
  41 static inline bool omap_vrfb_supported(void) { return false; }
  42 static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
  43 static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
  44 static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
  45                 u8 bytespp) {}
  46 static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
  47                 { return 0; }
  48 static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
  49                 { return 0; }
  50 static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
  51                 u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
  52 static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
  53                 { return 0; }
  54 static inline void omap_vrfb_restore_context(void) {}
  55 #endif
  56 #endif /* __VRFB_H */