diff options
| author | Damian <dhobsong@igel.co.jp> | 2011-05-18 13:10:07 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-05-23 09:06:24 +0200 |
| commit | 7caa4342ca5b37d2d178b464c16badd4228b3b7b (patch) | |
| tree | 0111e05278facfc0eb92c46b80c577d1e1e694e4 /include/video | |
| parent | Merge branch 'viafb-next' of git://github.com/schandinat/linux-2.6 (diff) | |
| download | linux-7caa4342ca5b37d2d178b464c16badd4228b3b7b.tar.xz linux-7caa4342ca5b37d2d178b464c16badd4228b3b7b.zip | |
sh_mobile_meram: MERAM framework for LCDC
Based on the patch by Takanari Hayama <taki@igel.co.jp>
Adds support framework necessary to use Media RAM (MERAM)
caching functionality with the LCDC. The MERAM is accessed
through up to 4 Interconnect Buffers (ICBs).
ICB numbers and MERAM address ranges to use are specified in
by filling in the .meram_cfg member of the LCDC platform data
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/video')
| -rw-r--r-- | include/video/sh_mobile_lcdc.h | 3 | ||||
| -rw-r--r-- | include/video/sh_mobile_meram.h | 67 |
2 files changed, 70 insertions, 0 deletions
diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h index 2c8d369190b3..d964e68fc61d 100644 --- a/include/video/sh_mobile_lcdc.h +++ b/include/video/sh_mobile_lcdc.h @@ -2,6 +2,7 @@ #define __ASM_SH_MOBILE_LCDC_H__ #include <linux/fb.h> +#include <video/sh_mobile_meram.h> enum { RGB8, /* 24bpp, 8:8:8 */ @@ -87,11 +88,13 @@ struct sh_mobile_lcdc_chan_cfg { struct sh_mobile_lcdc_bl_info bl_info; struct sh_mobile_lcdc_sys_bus_cfg sys_bus_cfg; /* only for SYSn I/F */ int nonstd; + struct sh_mobile_meram_cfg *meram_cfg; }; struct sh_mobile_lcdc_info { int clock_source; struct sh_mobile_lcdc_chan_cfg ch[2]; + struct sh_mobile_meram_info *meram_dev; }; #endif /* __ASM_SH_MOBILE_LCDC_H__ */ diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h new file mode 100644 index 000000000000..15fbb3da266f --- /dev/null +++ b/include/video/sh_mobile_meram.h @@ -0,0 +1,67 @@ +#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 +}; + + +struct sh_mobile_meram_priv; +struct sh_mobile_meram_ops; + +struct sh_mobile_meram_info { + int addr_mode; + struct sh_mobile_meram_ops *ops; + struct sh_mobile_meram_priv *priv; + struct platform_device *pdev; +}; + +/* icb config */ +struct sh_mobile_meram_icb { + int marker_icb; /* ICB # for Marker ICB */ + int cache_icb; /* ICB # for Cache ICB */ + int meram_offset; /* MERAM Buffer Offset to use */ + int meram_size; /* MERAM Buffer Size to use */ + + int cache_unit; /* bytes to cache per ICB */ +}; + +struct sh_mobile_meram_cfg { + struct sh_mobile_meram_icb icb[2]; + int pixelformat; + int current_reg; +}; + +struct module; +struct sh_mobile_meram_ops { + struct module *module; + /* register usage of meram */ + int (*meram_register)(struct sh_mobile_meram_info *meram_dev, + struct sh_mobile_meram_cfg *cfg, + int xres, int yres, int pixelformat, + unsigned long base_addr_y, + unsigned long base_addr_c, + unsigned long *icb_addr_y, + unsigned long *icb_addr_c, int *pitch); + + /* unregister usage of meram */ + int (*meram_unregister)(struct sh_mobile_meram_info *meram_dev, + struct sh_mobile_meram_cfg *cfg); + + /* update meram settings */ + int (*meram_update)(struct sh_mobile_meram_info *meram_dev, + struct sh_mobile_meram_cfg *cfg, + unsigned long base_addr_y, + unsigned long base_addr_c, + unsigned long *icb_addr_y, + unsigned long *icb_addr_c); +}; + +#endif /* __VIDEO_SH_MOBILE_MERAM_H__ */ |