#ifndef _LINUX_FB_H
#define _LINUX_FB_H
#include <sys/types.h>
/* Definitions of frame buffers */
#define FB_MAJOR 29
#define FB_MODES_SHIFT 5 /* 32 modes per framebuffer */
#define FB_NUM_MINORS 256 /* 256 Minors */
#define FB_MAX (FB_NUM_MINORS / (1 << FB_MODES_SHIFT))
#define GET_FB_IDX(node) (MINOR(node) >> FB_MODES_SHIFT)
/* ioctls
0x46 is 'F' */
#define FBIOGET_VSCREENINFO 0x4600
#define FBIOPUT_VSCREENINFO 0x4601
#define FBIOGET_FSCREENINFO 0x4602
#define FBIOGETCMAP 0x4604
#define FBIOPUTCMAP 0x4605
#define FBIOPAN_DISPLAY 0x4606
/* 0x4607-0x460B are defined below */
/* #define FBIOGET_MONITORSPEC 0x460C */
/* #define FBIOPUT_MONITORSPEC 0x460D */
/* #define FBIOSWITCH_MONIBIT 0x460E */
#define FBIOGET_CON2FBMAP 0x460F
#define FBIOPUT_CON2FBMAP 0x4610
#define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
#define FB_TYPE_PLANES 1 /* Non interleaved planes */
#define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
#define FB_TYPE_TEXT 3 /* Text/attributes */
#define FB_AUX_TEXT_MDA 0 /* Monochrome text */
#define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */
#define FB_AUX_TEXT_S3_MMIO 2 /* S3 MMIO fasttext */
#define FB_AUX_TEXT_MGA_STEP16 3 /* MGA Millenium I: text, attr, 14 reserved bytes */
#define FB_AUX_TEXT_MGA_STEP8 4 /* other MGAs: text, attr, 6 reserved bytes */
#define FB_VISUAL_MONO01 0 /* Monochr. 1=Black 0=White */
#define FB_VISUAL_MONO10 1 /* Monochr. 1=White 0=Black */
#define FB_VISUAL_TRUECOLOR 2 /* True color */
#define FB_VISUAL_PSEUDOCOLOR 3 /* Pseudo color (like atari) */
#define FB_VISUAL_DIRECTCOLOR 4 /* Direct color */
#define FB_VISUAL_STATIC_PSEUDOCOLOR 5 /* Pseudo color readonly */
#define FB_ACCEL_NONE 0 /* no hardware accelerator */
#define FB_ACCEL_ATARIBLITT 1 /* Atari Blitter */
#define FB_ACCEL_AMIGABLITT 2 /* Amiga Blitter */
#define FB_ACCEL_S3_TRIO64 3 /* Cybervision64 (S3 Trio64) */
#define FB_ACCEL_NCR_77C32BLT 4 /* RetinaZ3 (NCR 77C32BLT) */
#define FB_ACCEL_S3_VIRGE 5 /* Cybervision64/3D (S3 ViRGE) */
#define FB_ACCEL_ATI_MACH64GX 6 /* ATI Mach 64GX family */
#define FB_ACCEL_DEC_TGA 7 /* DEC 21030 TGA */
#define FB_ACCEL_ATI_MACH64CT 8 /* ATI Mach 64CT family */
#define FB_ACCEL_ATI_MACH64VT 9 /* ATI Mach 64CT family VT class */
#define FB_ACCEL_ATI_MACH64GT 10 /* ATI Mach 64CT family GT class */
#define FB_ACCEL_SUN_CREATOR 11 /* Sun Creator/Creator3D */
#define FB_ACCEL_SUN_CGSIX 12 /* Sun cg6 */
#define FB_ACCEL_SUN_LEO 13 /* Sun leo/zx */
#define FB_ACCEL_IMS_TWINTURBO 14 /* IMS Twin Turbo */
#define FB_ACCEL_3DLABS_PERMEDIA2 15 /* 3Dlabs Permedia 2 */
#define FB_ACCEL_MATROX_MGA2064W 16 /* Matrox MGA2064W (Millenium) */
#define FB_ACCEL_MATROX_MGA1064SG 17 /* Matrox MGA1064SG (Mystique) */
#define FB_ACCEL_MATROX_MGA2164W 18 /* Matrox MGA2164W (Millenium II) */
#define FB_ACCEL_MATROX_MGA2164W_AGP 19 /* Matrox MGA2164W (Millenium II) */
#define FB_ACCEL_MATROX_MGAG100 20 /* Matrox G100 (Productiva G100) */
#define FB_ACCEL_MATROX_MGAG200 21 /* Matrox G200 (Myst, Mill, ...) */
struct fb_fix_screeninfo {
wchar_t id[16]; /* identification string eg "TT Builtin" */
char *smem_start; /* Start of frame buffer mem */
/* (physical address) */
dword smem_len; /* Length of frame buffer mem */
dword type; /* see FB_TYPE_* */
dword type_aux; /* Interleave for interleaved Planes */
dword visual; /* see FB_VISUAL_* */
word xpanstep; /* zero if no hardware panning */
word ypanstep; /* zero if no hardware panning */
word ywrapstep; /* zero if no hardware ywrap */
dword line_length; /* length of a line in bytes */
char *mmio_start; /* Start of Memory Mapped I/O */
/* (physical address) */
dword mmio_len; /* Length of Memory Mapped I/O */
dword accel; /* Type of acceleration available */
word reserved[3]; /* Reserved for future compatibility */
};
/* Interpretation of offset for color fields: All offsets are from the right,
* inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
* can use the offset as right argument to <<). A pixel afterwards is a bit
* stream and is written to video memory as that unmodified. This implies
* big-endian byte order if bits_per_pixel is greater than 8.
*/
struct fb_bitfield {
dword offset; /* beginning of bitfield */
dword length; /* length of bitfield */
dword msb_right; /* != 0 : Most significant bit is */
/* right */
};
#define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
#define FB_ACTIVATE_NOW 0 /* set values immediately (or vbl)*/
#define FB_ACTIVATE_NXTOPEN 1 /* activate on next open */
#define FB_ACTIVATE_TEST 2 /* don't set, round up impossible */
#define FB_ACTIVATE_MASK 15
/* values */
#define FB_ACTIVATE_VBL 16 /* activate values on next vbl */
#define FB_CHANGE_CMAP_VBL 32 /* change colormap on vbl */
#define FB_ACTIVATE_ALL 64 /* change all VCs on this fb */
#define FB_ACCELF_TEXT 1 /* text mode acceleration */
#define FB_SYNC_HOR_HIGH_ACT 1 /* horizontal sync high active */
#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
#define FB_SYNC_EXT 4 /* external sync */
#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
#define FB_SYNC_BROADCAST 16 /* broadcast video timings */
/* vtotal = 144d/288n/576i => PAL */
/* vtotal = 121d/242n/484i => NTSC */
#define FB_SYNC_ON_GREEN 32 /* sync on green */
#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
#define FB_VMODE_INTERLACED 1 /* interlaced */
#define FB_VMODE_DOUBLE 2 /* double scan */
#define FB_VMODE_MASK 255
#define FB_VMODE_YWRAP 256 /* ywrap instead of panning */
#define FB_VMODE_SMOOTH_XPAN 512 /* smooth xpan possible (internally used) */
#define FB_VMODE_CONUPDATE 512 /* don't update x/yoffset */
struct fb_var_screeninfo {
dword xres; /* visible resolution */
dword yres;
dword xres_virtual; /* virtual resolution */
dword yres_virtual;
dword xoffset; /* offset from virtual to visible */
dword yoffset; /* resolution */
dword bits_per_pixel; /* guess what */
dword grayscale; /* != 0 Graylevels instead of colors */
struct fb_bitfield red; /* bitfield in fb mem if true color, */
struct fb_bitfield green; /* else only length is significant */
struct fb_bitfield blue;
struct fb_bitfield transp; /* transparency */
dword nonstd; /* != 0 Non standard pixel format */
dword activate; /* see FB_ACTIVATE_* */
dword height; /* height of picture in mm */
dword width; /* width of picture in mm */
dword accel_flags; /* acceleration flags (hints) */
/* Timing: All values in pixclocks, except pixclock (of course) */
dword pixclock; /* pixel clock in ps (pico seconds) */
dword left_margin; /* time from sync to picture */
dword right_margin; /* time from picture to sync */
dword upper_margin; /* time from sync to picture */
dword lower_margin;
dword hsync_len; /* length of horizontal sync */
dword vsync_len; /* length of vertical sync */
dword sync; /* see FB_SYNC_* */
dword vmode; /* see FB_VMODE_* */
dword reserved[6]; /* Reserved for future compatibility */
};
struct fb_cmap {
dword start; /* First entry */
dword len; /* Number of entries */
word *red; /* Red values */
word *green;
word *blue;
word *transp; /* transparency, can be NULL */
};
struct fb_con2fbmap {
dword console;
dword framebuffer;
};
struct fb_monspecs {
dword hfmin; /* hfreq lower limit (Hz) */
dword hfmax; /* hfreq upper limit (Hz) */
word vfmin; /* vfreq lower limit (Hz) */
word vfmax; /* vfreq upper limit (Hz) */
unsigned dpms : 1; /* supports DPMS */
};
#ifdef __KERNEL__
#include <linux/fs.h>
struct fb_info;
struct fb_info_gen;
struct vm_area_struct;
struct file;
/*
* Frame buffer operations
*/
struct fb_ops {
/* open/release and usage marking */
int (*fb_open)(struct fb_info *info, int user);
int (*fb_release)(struct fb_info *info, int user);
/* get non settable parameters */
int (*fb_get_fix)(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info);
/* get settable parameters */
int (*fb_get_var)(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
/* set settable parameters */
int (*fb_set_var)(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
/* get colormap */
int (*fb_get_cmap)(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
/* set colormap */
int (*fb_set_cmap)(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
/* pan display */
int (*fb_pan_display)(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
/* perform fb specific ioctl */
int (*fb_ioctl)(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg, int con, struct fb_info *info);
/* perform fb specific mmap */
int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
};
/*
* This is the interface between the low-level console driver and the
* low-level frame buffer device
*/
struct display {
/* Filled in by the frame buffer device */
struct fb_var_screeninfo var; /* variable infos. yoffset and vmode */
/* are updated by fbcon.c */
struct fb_cmap cmap; /* colormap */
char *screen_base; /* pointer to top of virtual screen */
/* (virtual address) */
int visual;
int type; /* see FB_TYPE_* */
int type_aux; /* Interleave for interleaved Planes */
u_short ypanstep; /* zero if no hardware ypan */
u_short ywrapstep; /* zero if no hardware ywrap */
u_long line_length; /* length of a line in bytes */
u_short can_soft_blank; /* zero if no hardware blanking */
u_short inverse; /* != 0 text black on white as default */
struct display_switch *dispsw; /* low level operations */
void *dispsw_data; /* optional dispsw helper data */
#if 0
struct fb_fix_cursorinfo fcrsr;
struct fb_var_cursorinfo *vcrsr;
struct fb_cursorstate crsrstate;
#endif
/* Filled in by the low-level console driver */
struct vc_data *conp; /* pointer to console data */
struct fb_info *fb_info; /* frame buffer for this console */
int vrows; /* number of virtual rows */
unsigned short cursor_x; /* current cursor position */
unsigned short cursor_y;
int fgcol; /* text colors */
int bgcol;
u_long next_line; /* offset to one line below */
u_long next_plane; /* offset to next plane */
u_char *fontdata; /* Font associated to this display */
unsigned short _fontheightlog;
unsigned short _fontwidthlog;
unsigned short _fontheight;
unsigned short _fontwidth;
int userfont; /* != 0 if fontdata kmalloc()ed */
u_short scrollmode; /* Scroll Method */
short yscroll; /* Hardware scrolling */
unsigned char fgshift, bgshift;
unsigned short charmask; /* 0xff or 0x1ff */
};
struct fb_info {
char modename[40]; /* default video mode */
int node;
int flags;
#define FBINFO_FLAG_MODULE 1 /* Low-level driver is a module */
struct fb_ops *fbops;
struct fb_monspecs monspecs;
struct display *disp; /* initial display variable */
struct vc_data *display_fg; /* Console visible on this display */
char fontname[40]; /* default font name */
int (*changevar)(int); /* tell console var has changed */
int (*switch_con)(int, struct fb_info*);
/* tell fb to switch consoles */
int (*updatevar)(int, struct fb_info*);
/* tell fb to update the vars */
void (*blank)(int, struct fb_info*); /* tell fb to (un)blank the screen */
/* arg = 0: unblank */
/* arg > 0: VESA level (arg-1) */
/* From here on everything is device dependent */
};
#ifdef MODULE
#define FBINFO_FLAG_DEFAULT FBINFO_FLAG_MODULE
#else
#define FBINFO_FLAG_DEFAULT 0
#endif
/*
* This structure abstracts from the underlying hardware. It is not
* mandatory but used by the `generic' frame buffer operations.
* Read drivers/video/skeletonfb.c for more information.
*/
struct fbgen_hwswitch {
void (*detect)(void);
int (*encode_fix)(struct fb_fix_screeninfo *fix, const void *par,
struct fb_info_gen *info);
int (*decode_var)(const struct fb_var_screeninfo *var, void *par,
struct fb_info_gen *info);
int (*encode_var)(struct fb_var_screeninfo *var, const void *par,
struct fb_info_gen *info);
void (*get_par)(void *par, struct fb_info_gen *info);
void (*set_par)(const void *par, struct fb_info_gen *info);
int (*getcolreg)(unsigned regno, unsigned *red, unsigned *green,
unsigned *blue, unsigned *transp, struct fb_info *info);
int (*setcolreg)(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp, struct fb_info *info);
int (*pan_display)(const struct fb_var_screeninfo *var,
struct fb_info_gen *info);
int (*blank)(int blank_mode, struct fb_info_gen *info);
void (*set_dispsw)(const void *par, struct display *disp,
struct fb_info_gen *info);
};
struct fb_info_gen {
struct fb_info info;
/* Entries for a generic frame buffer device */
/* Yes, this starts looking like C++ */
u_int parsize;
struct fbgen_hwswitch *fbhw;
/* From here on everything is device dependent */
};
/*
* `Generic' versions of the frame buffer device operations
*/
extern int fbgen_get_fix(struct fb_fix_screeninfo *fix, int con,
struct fb_info *info);
extern int fbgen_get_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
extern int fbgen_set_var(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
extern int fbgen_get_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
extern int fbgen_set_cmap(struct fb_cmap *cmap, int kspc, int con,
struct fb_info *info);
extern int fbgen_pan_display(struct fb_var_screeninfo *var, int con,
struct fb_info *info);
extern int fbgen_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg, int con,
struct fb_info *info);
/*
* Helper functions
*/
extern int fbgen_do_set_var(struct fb_var_screeninfo *var, int isactive,
struct fb_info_gen *info);
extern void fbgen_set_disp(int con, struct fb_info_gen *info);
extern void fbgen_install_cmap(int con, struct fb_info_gen *info);
extern int fbgen_update_var(int con, struct fb_info *info);
extern int fbgen_switch(int con, struct fb_info *info);
extern void fbgen_blank(int blank, struct fb_info *info);
struct fb_videomode {
const char *name;
struct fb_var_screeninfo var;
};
/* drivers/char/fbmem.c */
extern int register_framebuffer(struct fb_info *fb_info);
extern int unregister_framebuffer(const struct fb_info *fb_info);
extern int fbmon_valid_timings(u_int pixclock, u_int htotal, u_int vtotal,
const struct fb_info *fb_info);
extern int fbmon_dpms(const struct fb_info *fb_info);
extern int num_registered_fb;
extern struct fb_info *registered_fb[FB_MAX];
extern char con2fb_map[MAX_NR_CONSOLES];
/* drivers/video/fbcon.c */
extern struct display fb_display[MAX_NR_CONSOLES];
/* drivers/video/fbcmap.c */
extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);
extern void fb_copy_cmap(struct fb_cmap *from, struct fb_cmap *to,
int fsfromto);
extern int fb_get_cmap(struct fb_cmap *cmap, int kspc,
int (*getcolreg)(u_int, u_int *, u_int *, u_int *,
u_int *, struct fb_info *),
struct fb_info *fb_info);
extern int fb_set_cmap(struct fb_cmap *cmap, int kspc,
int (*setcolreg)(u_int, u_int, u_int, u_int, u_int,
struct fb_info *),
struct fb_info *fb_info);
extern struct fb_cmap *fb_default_cmap(int len);
extern void fb_invert_cmaps(void);
/* VESA Blanking Levels */
#define VESA_NO_BLANKING 0
#define VESA_VSYNC_SUSPEND 1
#define VESA_HSYNC_SUSPEND 2
#define VESA_POWERDOWN 3
#endif /* __KERNEL__ */
#if 1
#define FBCMD_GET_CURRENTPAR 0xDEAD0005
#define FBCMD_SET_CURRENTPAR 0xDEAD8005
#endif
#if 1 /* Preliminary */
/*
* Hardware Cursor
*/
#define FBIOGET_FCURSORINFO 0x4607
#define FBIOGET_VCURSORINFO 0x4608
#define FBIOPUT_VCURSORINFO 0x4609
#define FBIOGET_CURSORSTATE 0x460A
#define FBIOPUT_CURSORSTATE 0x460B
struct fb_fix_cursorinfo {
word crsr_width; /* width and height of the cursor in */
word crsr_height; /* pixels (zero if no cursor) */
word crsr_xsize; /* cursor size in display pixels */
word crsr_ysize;
word crsr_color1; /* colormap entry for cursor color1 */
word crsr_color2; /* colormap entry for cursor color2 */
};
struct fb_var_cursorinfo {
word width;
word height;
word xspot;
word yspot;
byte data[1]; /* field with [height][width] */
};
struct fb_cursorstate {
short xoffset;
short yoffset;
word mode;
};
#define FB_CURSOR_OFF 0
#define FB_CURSOR_ON 1
#define FB_CURSOR_FLASH 2
#endif /* Preliminary */
#endif /* _LINUX_FB_H */
