X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fvideo%2Fconsole%2Ffbcon.h;h=b9386d168c0499a260a99b9b9c3d76fec8828d27;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=a9d036b0ac426fc5dc1cefe6ffa90b203e1a39ca;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h index a9d036b0a..b9386d168 100644 --- a/drivers/video/console/fbcon.h +++ b/drivers/video/console/fbcon.h @@ -11,34 +11,79 @@ #ifndef _VIDEO_FBCON_H #define _VIDEO_FBCON_H -#include #include #include #include #include +#define FBCON_FLAGS_INIT 1 +#define FBCON_FLAGS_CURSOR_TIMER 2 + /* * 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 */ - u_short inverse; /* != 0 text black on white as default */ /* Filled in by the low-level console driver */ - u_char *fontdata; + const u_char *fontdata; int userfont; /* != 0 if fontdata kmalloc()ed */ u_short scrollmode; /* Scroll Method */ + u_short inverse; /* != 0 text black on white as default */ short yscroll; /* Hardware scrolling */ int vrows; /* number of virtual rows */ int cursor_shape; + int con_rotate; + u32 xres_virtual; + u32 yres_virtual; + u32 height; + u32 width; + u32 bits_per_pixel; + u32 grayscale; + u32 nonstd; + u32 accel_flags; + u32 rotate; + struct fb_bitfield red; + struct fb_bitfield green; + struct fb_bitfield blue; + struct fb_bitfield transp; + struct fb_videomode *mode; }; -/* drivers/video/console/fbcon.c */ -extern char con2fb_map[MAX_NR_CONSOLES]; -extern int set_con2fb_map(int unit, int newidx); - +struct fbcon_ops { + void (*bmove)(struct vc_data *vc, struct fb_info *info, int sy, + int sx, int dy, int dx, int height, int width); + void (*clear)(struct vc_data *vc, struct fb_info *info, int sy, + int sx, int height, int width); + void (*putcs)(struct vc_data *vc, struct fb_info *info, + const unsigned short *s, int count, int yy, int xx, + int fg, int bg); + void (*clear_margins)(struct vc_data *vc, struct fb_info *info, + int bottom_only); + void (*cursor)(struct vc_data *vc, struct fb_info *info, int mode, + int softback_lines, int fg, int bg); + int (*update_start)(struct fb_info *info); + int (*rotate_font)(struct fb_info *info, struct vc_data *vc); + struct fb_var_screeninfo var; /* copy of the current fb_var_screeninfo */ + struct timer_list cursor_timer; /* Cursor timer */ + struct fb_cursor cursor_state; + struct display *p; + int currcon; /* Current VC. */ + int cursor_flash; + int cursor_reset; + int blank_state; + int graphics; + int flags; + int rotate; + int cur_rotate; + char *cursor_data; + u8 *fontbuffer; + u8 *fontdata; + u8 *cursor_src; + u32 cursor_size; + u32 fd_size; +}; /* * Attribute Decoding */ @@ -56,52 +101,123 @@ extern int set_con2fb_map(int unit, int newidx); /* Monochrome */ #define attr_bold(s) \ ((s) & 0x200) -#define attr_reverse(s, inverse) \ - (((s) & 0x800) ^ (inverse ? 0x800 : 0)) +#define attr_reverse(s) \ + ((s) & 0x800) #define attr_underline(s) \ ((s) & 0x400) #define attr_blink(s) \ ((s) & 0x8000) +/* Font */ +#define REFCOUNT(fd) (((int *)(fd))[-1]) +#define FNTSIZE(fd) (((int *)(fd))[-2]) +#define FNTCHARCNT(fd) (((int *)(fd))[-3]) +#define FNTSUM(fd) (((int *)(fd))[-4]) +#define FONT_EXTRA_WORDS 4 + /* * Scroll Method */ -/* Internal flags */ -#define __SCROLL_YPAN 0x001 -#define __SCROLL_YWRAP 0x002 -#define __SCROLL_YMOVE 0x003 -#define __SCROLL_YREDRAW 0x004 -#define __SCROLL_YMASK 0x00f -#define __SCROLL_YFIXED 0x010 -#define __SCROLL_YNOMOVE 0x020 -#define __SCROLL_YPANREDRAW 0x040 -#define __SCROLL_YNOPARTIAL 0x080 - -/* Only these should be used by the drivers */ -/* Which one should you use? If you have a fast card and slow bus, - then probably just 0 to indicate fbcon should choose between - YWRAP/YPAN+MOVE/YMOVE. On the other side, if you have a fast bus - and even better if your card can do fonting (1->8/32bit painting), - you should consider either SCROLL_YREDRAW (if your card is - able to do neither YPAN/YWRAP), or SCROLL_YNOMOVE. - The best is to test it with some real life scrolling (usually, not - all lines on the screen are filled completely with non-space characters, - and REDRAW performs much better on such lines, so don't cat a file - with every line covering all screen columns, it would not be the right - benchmark). +/* There are several methods fbcon can use to move text around the screen: + * + * Operation Pan Wrap + *--------------------------------------------- + * SCROLL_MOVE copyarea No No + * SCROLL_PAN_MOVE copyarea Yes No + * SCROLL_WRAP_MOVE copyarea No Yes + * SCROLL_REDRAW imageblit No No + * SCROLL_PAN_REDRAW imageblit Yes No + * SCROLL_WRAP_REDRAW imageblit No Yes + * + * (SCROLL_WRAP_REDRAW is not implemented yet) + * + * In general, fbcon will choose the best scrolling + * method based on the rule below: + * + * Pan/Wrap > accel imageblit > accel copyarea > + * soft imageblit > (soft copyarea) + * + * Exception to the rule: Pan + accel copyarea is + * preferred over Pan + accel imageblit. + * + * The above is typical for PCI/AGP cards. Unless + * overridden, fbcon will never use soft copyarea. + * + * If you need to override the above rule, set the + * appropriate flags in fb_info->flags. For example, + * to prefer copyarea over imageblit, set + * FBINFO_READS_FAST. + * + * Other notes: + * + use the hardware engine to move the text + * (hw-accelerated copyarea() and fillrect()) + * + use hardware-supported panning on a large virtual screen + * + amifb can not only pan, but also wrap the display by N lines + * (i.e. visible line i = physical line (i+N) % yres). + * + read what's already rendered on the screen and + * write it in a different place (this is cfb_copyarea()) + * + re-render the text to the screen + * + * Whether to use wrapping or panning can only be figured out at + * runtime (when we know whether our font height is a multiple + * of the pan/wrap step) + * */ -#define SCROLL_YREDRAW (__SCROLL_YFIXED|__SCROLL_YREDRAW) -#define SCROLL_YNOMOVE (__SCROLL_YNOMOVE|__SCROLL_YPANREDRAW) -/* SCROLL_YNOPARTIAL, used in combination with the above, is for video - cards which can not handle using panning to scroll a portion of the - screen without excessive flicker. Panning will only be used for - whole screens. - */ -/* Namespace consistency */ -#define SCROLL_YNOPARTIAL __SCROLL_YNOPARTIAL +#define SCROLL_MOVE 0x001 +#define SCROLL_PAN_MOVE 0x002 +#define SCROLL_WRAP_MOVE 0x003 +#define SCROLL_REDRAW 0x004 +#define SCROLL_PAN_REDRAW 0x005 + +#ifdef CONFIG_FB_TILEBLITTING +extern void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info); +#endif +extern void fbcon_set_bitops(struct fbcon_ops *ops); +extern int soft_cursor(struct fb_info *info, struct fb_cursor *cursor); +extern struct class *fb_class; + +#define FBCON_ATTRIBUTE_UNDERLINE 1 +#define FBCON_ATTRIBUTE_REVERSE 2 +#define FBCON_ATTRIBUTE_BOLD 4 + +static inline int real_y(struct display *p, int ypos) +{ + int rows = p->vrows; + + ypos += p->yscroll; + return ypos < rows ? ypos : ypos - rows; +} -extern int fb_console_init(void); + +static inline int get_attribute(struct fb_info *info, u16 c) +{ + int attribute = 0; + + if (fb_get_color_depth(&info->var, &info->fix) == 1) { + if (attr_underline(c)) + attribute |= FBCON_ATTRIBUTE_UNDERLINE; + if (attr_reverse(c)) + attribute |= FBCON_ATTRIBUTE_REVERSE; + if (attr_bold(c)) + attribute |= FBCON_ATTRIBUTE_BOLD; + } + + return attribute; +} + +#define FBCON_SWAP(i,r,v) ({ \ + typeof(r) _r = (r); \ + typeof(v) _v = (v); \ + (void) (&_r == &_v); \ + (i == FB_ROTATE_UR || i == FB_ROTATE_UD) ? _r : _v; }) + +#ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION +extern void fbcon_set_rotate(struct fbcon_ops *ops); +#else +#define fbcon_set_rotate(x) do {} while(0) +#endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ #endif /* _VIDEO_FBCON_H */ +