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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>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
#ifndef __VIDEO_SH_MOBILE_MERAM_H__
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#define __VIDEO_SH_MOBILE_MERAM_H__
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/* For sh_mobile_meram_info.addr_mode */
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enum {
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SH_MOBILE_MERAM_MODE0 = 0,
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SH_MOBILE_MERAM_MODE1
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};
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enum {
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SH_MOBILE_MERAM_PF_NV = 0,
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SH_MOBILE_MERAM_PF_RGB,
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SH_MOBILE_MERAM_PF_NV24
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};
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struct sh_mobile_meram_priv;
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/*
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* struct sh_mobile_meram_info - MERAM platform data
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* @reserved_icbs: Bitmask of reserved ICBs (for instance used through UIO)
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*/
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struct sh_mobile_meram_info {
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int addr_mode;
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u32 reserved_icbs;
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struct sh_mobile_meram_priv *priv;
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struct platform_device *pdev;
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};
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/* icb config */
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struct sh_mobile_meram_icb_cfg {
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unsigned int meram_size; /* MERAM Buffer Size to use */
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};
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struct sh_mobile_meram_cfg {
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struct sh_mobile_meram_icb_cfg icb[2];
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};
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#if defined(CONFIG_FB_SH_MOBILE_MERAM) || \
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defined(CONFIG_FB_SH_MOBILE_MERAM_MODULE)
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unsigned long sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev,
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size_t size);
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void sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
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unsigned long mem, size_t size);
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void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
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const struct sh_mobile_meram_cfg *cfg,
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unsigned int xres, unsigned int yres,
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unsigned int pixelformat,
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unsigned int *pitch);
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void sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data);
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void sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
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unsigned long base_addr_y,
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unsigned long base_addr_c,
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unsigned long *icb_addr_y,
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unsigned long *icb_addr_c);
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#else
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static inline unsigned long
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sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev, size_t size)
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{
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return 0;
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}
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static inline void
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sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
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unsigned long mem, size_t size)
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{
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}
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static inline void *
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sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
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const struct sh_mobile_meram_cfg *cfg,
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unsigned int xres, unsigned int yres,
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unsigned int pixelformat,
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unsigned int *pitch)
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{
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return ERR_PTR(-ENODEV);
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}
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static inline void
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sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data)
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{
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}
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static inline void
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sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
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unsigned long base_addr_y,
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unsigned long base_addr_c,
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unsigned long *icb_addr_y,
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unsigned long *icb_addr_c)
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{
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}
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#endif
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#endif /* __VIDEO_SH_MOBILE_MERAM_H__ */
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