mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 17:54:13 +08:00
239921ec1d
The API can be used to allocate and free MERAM blocks directly, without going through ICBs. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
#ifndef __VIDEO_SH_MOBILE_MERAM_H__
|
|
#define __VIDEO_SH_MOBILE_MERAM_H__
|
|
|
|
/* For sh_mobile_meram_info.addr_mode */
|
|
enum {
|
|
SH_MOBILE_MERAM_MODE0 = 0,
|
|
SH_MOBILE_MERAM_MODE1
|
|
};
|
|
|
|
enum {
|
|
SH_MOBILE_MERAM_PF_NV = 0,
|
|
SH_MOBILE_MERAM_PF_RGB,
|
|
SH_MOBILE_MERAM_PF_NV24
|
|
};
|
|
|
|
|
|
struct sh_mobile_meram_priv;
|
|
|
|
/*
|
|
* struct sh_mobile_meram_info - MERAM platform data
|
|
* @reserved_icbs: Bitmask of reserved ICBs (for instance used through UIO)
|
|
*/
|
|
struct sh_mobile_meram_info {
|
|
int addr_mode;
|
|
u32 reserved_icbs;
|
|
struct sh_mobile_meram_priv *priv;
|
|
struct platform_device *pdev;
|
|
};
|
|
|
|
/* icb config */
|
|
struct sh_mobile_meram_icb_cfg {
|
|
unsigned int meram_size; /* MERAM Buffer Size to use */
|
|
};
|
|
|
|
struct sh_mobile_meram_cfg {
|
|
struct sh_mobile_meram_icb_cfg icb[2];
|
|
};
|
|
|
|
#if defined(CONFIG_FB_SH_MOBILE_MERAM) || \
|
|
defined(CONFIG_FB_SH_MOBILE_MERAM_MODULE)
|
|
unsigned long sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev,
|
|
size_t size);
|
|
void sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
|
|
unsigned long mem, size_t size);
|
|
void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
|
|
const struct sh_mobile_meram_cfg *cfg,
|
|
unsigned int xres, unsigned int yres,
|
|
unsigned int pixelformat,
|
|
unsigned int *pitch);
|
|
void sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data);
|
|
void sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
|
|
unsigned long base_addr_y,
|
|
unsigned long base_addr_c,
|
|
unsigned long *icb_addr_y,
|
|
unsigned long *icb_addr_c);
|
|
#else
|
|
static inline unsigned long
|
|
sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev, size_t size)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
|
|
unsigned long mem, size_t size)
|
|
{
|
|
}
|
|
|
|
static inline void *
|
|
sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
|
|
const struct sh_mobile_meram_cfg *cfg,
|
|
unsigned int xres, unsigned int yres,
|
|
unsigned int pixelformat,
|
|
unsigned int *pitch)
|
|
{
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
static inline void
|
|
sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
|
|
unsigned long base_addr_y,
|
|
unsigned long base_addr_c,
|
|
unsigned long *icb_addr_y,
|
|
unsigned long *icb_addr_c)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif /* __VIDEO_SH_MOBILE_MERAM_H__ */
|