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sh_mobile_meram.h
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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__ */
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