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o Add simplified structure describing framebuffer object.

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o Add EVENTHANDLER wrapper to register/unregister framebuffer w/o depend on new
framebuffer methods.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
ray 2013-10-22 13:47:25 +00:00
parent b3603dddc9
commit a3b3cbda1a
1 changed files with 73 additions and 0 deletions
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73
sys/sys/fbio.h
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@ -40,6 +40,10 @@
#ifndef _KERNEL
#include <sys/types.h>
#else
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/eventhandler.h>
#endif
#include <sys/ioccom.h>
@ -101,6 +105,75 @@ struct fbtype {
};
#define FBIOGTYPE _IOR('F', 0, struct fbtype)
#define FBTYPE_GET_STRIDE(_fb) ((_fb)->fb_size / (_fb)->fb_height)
#define FBTYPE_GET_BPP(_fb) ((_fb)->fb_bpp)
#define FBTYPE_GET_BYTESPP(_fb) ((_fb)->fb_bpp / 8)
#ifdef _KERNEL
struct fb_info;
typedef int fb_enter_t(void *priv);
typedef int fb_leave_t(void *priv);
typedef int fb_write_t(void *priv, int offset, void *data, int size);
typedef int fb_read_t(void *priv, int offset, void *data, int size);
/* XXX: should use priv instead of fb_info too. */
typedef void fb_wr1_t(struct fb_info *sc, uint32_t offset, uint8_t value);
typedef void fb_wr2_t(struct fb_info *sc, uint32_t offset, uint16_t value);
typedef void fb_wr4_t(struct fb_info *sc, uint32_t offset, uint32_t value);
struct fb_info {
/* Raw copy of fbtype. Do not change. */
int fb_type; /* as defined above */
int fb_height; /* in pixels */
int fb_width; /* in pixels */
int fb_depth; /* bits to define color */
int fb_cmsize; /* size of color map (entries) */
int fb_size; /* total size in bytes */
/* Methods. */
fb_write_t *fb_write; /* if NULL, direct mem write. */
fb_read_t *fb_read; /* if NULL, direct mem read. */
fb_wr1_t *wr1;
fb_wr2_t *wr2;
fb_wr4_t *wr4;
fb_enter_t *enter;
fb_leave_t *leave;
intptr_t fb_pbase; /* For FB mmap. */
intptr_t fb_vbase; /* if NULL, use fb_write/fb_read. */
void *fb_priv; /* First argument for read/write. */
const char *fb_name;
uint32_t fb_flags;
int fb_stride;
int fb_bpp; /* bits per pixel */
#define FB_FLAG_NOMMAP 1 /* mmap unsupported. */
uint32_t fb_cmap[16];
};
int fbd_list(void);
int fbd_register(struct fb_info *);
int fbd_unregister(struct fb_info *);
static inline int
register_framebuffer(struct fb_info *info)
{
EVENTHANDLER_INVOKE(register_framebuffer, info);
return (0);
}
static inline int
unregister_framebuffer(struct fb_info *info)
{
EVENTHANDLER_INVOKE(unregister_framebuffer, info);
return (0);
}
#endif
#ifdef notdef
/*
* General purpose structure for passing info in and out of frame buffers