include/video/sh_mobile_meram.h

   1 #ifndef __VIDEO_SH_MOBILE_MERAM_H__
   2 #define __VIDEO_SH_MOBILE_MERAM_H__
   3
   4 /* For sh_mobile_meram_info.addr_mode */
   5 enum {
   6         SH_MOBILE_MERAM_MODE0 = 0,
   7         SH_MOBILE_MERAM_MODE1
   8 };
   9
  10 enum {
  11         SH_MOBILE_MERAM_PF_NV = 0,
  12         SH_MOBILE_MERAM_PF_RGB,
  13         SH_MOBILE_MERAM_PF_NV24
  14 };
  15
  16
  17 struct sh_mobile_meram_priv;
  18
  19 /*
  20  * struct sh_mobile_meram_info - MERAM platform data
  21  * @reserved_icbs: Bitmask of reserved ICBs (for instance used through UIO)
  22  */
  23 struct sh_mobile_meram_info {
  24         int                             addr_mode;
  25         u32                             reserved_icbs;
  26         struct sh_mobile_meram_priv     *priv;
  27         struct platform_device          *pdev;
  28 };
  29
  30 /* icb config */
  31 struct sh_mobile_meram_icb_cfg {
  32         unsigned int meram_size;        /* MERAM Buffer Size to use */
  33 };
  34
  35 struct sh_mobile_meram_cfg {
  36         struct sh_mobile_meram_icb_cfg icb[2];
  37 };
  38
  39 #if defined(CONFIG_FB_SH_MOBILE_MERAM) || \
  40     defined(CONFIG_FB_SH_MOBILE_MERAM_MODULE)
  41 unsigned long sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev,
  42                                     size_t size);
  43 void sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
  44                           unsigned long mem, size_t size);
  45 void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
  46                                   const struct sh_mobile_meram_cfg *cfg,
  47                                   unsigned int xres, unsigned int yres,
  48                                   unsigned int pixelformat,
  49                                   unsigned int *pitch);
  50 void sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data);
  51 void sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
  52                                   unsigned long base_addr_y,
  53                                   unsigned long base_addr_c,
  54                                   unsigned long *icb_addr_y,
  55                                   unsigned long *icb_addr_c);
  56 #else
  57 static inline unsigned long
  58 sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev, size_t size)
  59 {
  60         return 0;
  61 }
  62
  63 static inline void
  64 sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
  65                      unsigned long mem, size_t size)
  66 {
  67 }
  68
  69 static inline void *
  70 sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
  71                             const struct sh_mobile_meram_cfg *cfg,
  72                             unsigned int xres, unsigned int yres,
  73                             unsigned int pixelformat,
  74                             unsigned int *pitch)
  75 {
  76         return ERR_PTR(-ENODEV);
  77 }
  78
  79 static inline void
  80 sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data)
  81 {
  82 }
  83
  84 static inline void
  85 sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
  86                              unsigned long base_addr_y,
  87                              unsigned long base_addr_c,
  88                              unsigned long *icb_addr_y,
  89                              unsigned long *icb_addr_c)
  90 {
  91 }
  92 #endif
  93
  94 #endif /* __VIDEO_SH_MOBILE_MERAM_H__  */