Contributors: 24
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Antonino A. Daplas |
350 |
29.26% |
24 |
24.24% |
| Daniel Vetter |
176 |
14.72% |
13 |
13.13% |
| Linus Torvalds (pre-git) |
174 |
14.55% |
13 |
13.13% |
| James Simmons |
142 |
11.87% |
18 |
18.18% |
| Thomas Zimmermann |
89 |
7.44% |
8 |
8.08% |
| Helge Deller |
79 |
6.61% |
3 |
3.03% |
| Harvey Harrison |
57 |
4.77% |
1 |
1.01% |
| Ezequiel García |
24 |
2.01% |
1 |
1.01% |
| Benjamin Herrenschmidt |
20 |
1.67% |
2 |
2.02% |
| Quanmin Yan |
19 |
1.59% |
1 |
1.01% |
| Jaya Kumar |
18 |
1.51% |
2 |
2.02% |
| Andrew Morton |
10 |
0.84% |
1 |
1.01% |
| Dave Jones |
7 |
0.59% |
1 |
1.01% |
| Zsolt Kajtar |
6 |
0.50% |
1 |
1.01% |
| Kees Cook |
5 |
0.42% |
1 |
1.01% |
| Thomas Pfaff |
4 |
0.33% |
1 |
1.01% |
| David Lechner |
3 |
0.25% |
1 |
1.01% |
| David Winn |
3 |
0.25% |
1 |
1.01% |
| Scot Doyle |
3 |
0.25% |
1 |
1.01% |
| Jiri Slaby (SUSE) |
2 |
0.17% |
1 |
1.01% |
| Arnd Bergmann |
2 |
0.17% |
1 |
1.01% |
| Geert Uytterhoeven |
1 |
0.08% |
1 |
1.01% |
| Linus Torvalds |
1 |
0.08% |
1 |
1.01% |
| Adrian Bunk |
1 |
0.08% |
1 |
1.01% |
| Total |
1196 |
|
99 |
|
/*
* linux/drivers/video/console/fbcon.h -- Low level frame buffer based console driver
*
* Copyright (C) 1997 Geert Uytterhoeven
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#ifndef _VIDEO_FBCON_H
#define _VIDEO_FBCON_H
#include <linux/compiler_types.h>
#include <linux/font.h>
#include <linux/types.h>
#include <linux/vt_buffer.h>
#include <linux/vt_kern.h>
#include <linux/workqueue.h>
#include <asm/io.h>
struct fb_blit_caps;
struct fb_info;
struct fb_var_screeninfo;
struct fb_videomode;
/*
* This is the interface between the low-level console driver and the
* low-level frame buffer device
*/
struct fbcon_display {
/* Filled in by the low-level console driver */
font_data_t *fontdata;
#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
u_short scrollmode; /* Scroll Method, use fb_scrollmode() */
#endif
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;
const struct fb_videomode *mode;
};
struct fbcon_bitops {
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, int fb, int bg);
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 color, int bottom_only);
void (*cursor)(struct vc_data *vc, struct fb_info *info,
bool enable, int fg, int bg);
int (*update_start)(struct fb_info *info);
int (*rotate_font)(struct fb_info *info, struct vc_data *vc);
};
struct fbcon_par {
struct fb_var_screeninfo var; /* copy of the current fb_var_screeninfo */
struct delayed_work cursor_work; /* Cursor timer */
struct fb_cursor cursor_state;
struct fbcon_display *p;
struct fb_info *info;
int currcon; /* Current VC. */
int cur_blink_jiffies;
int cursor_flash;
int cursor_reset;
int blank_state;
int graphics;
bool initialized;
int rotate;
char *cursor_data;
#ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION
struct {
font_data_t *fontdata; /* source font */
u8 *buf; /* rotated glyphs */
size_t bufsize;
int buf_rotate; /* rotation of buf */
} rotated;
#endif
u8 *cursor_src;
u32 cursor_size;
const struct fbcon_bitops *bitops;
};
/*
* Attribute Decoding
*/
/* Color */
#define attr_fgcol(fgshift,s) \
(((s) >> (fgshift)) & 0x0f)
#define attr_bgcol(bgshift,s) \
(((s) >> (bgshift)) & 0x0f)
/* Monochrome */
#define attr_bold(s) \
((s) & 0x200)
#define attr_reverse(s) \
((s) & 0x800)
#define attr_underline(s) \
((s) & 0x400)
#define attr_blink(s) \
((s) & 0x8000)
static inline int mono_col(const struct fb_info *info)
{
__u32 max_len;
max_len = max(info->var.green.length, info->var.red.length);
max_len = max(info->var.blue.length, max_len);
return (~(0xfff << max_len)) & 0xff;
}
/*
* Scroll Method
*/
/* 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_MOVE 0x001
#define SCROLL_PAN_MOVE 0x002
#define SCROLL_WRAP_MOVE 0x003
#define SCROLL_REDRAW 0x004
#define SCROLL_PAN_REDRAW 0x005
static inline u_short fb_scrollmode(struct fbcon_display *fb)
{
#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
return fb->scrollmode;
#else
/* hardcoded to SCROLL_REDRAW if acceleration was disabled. */
return SCROLL_REDRAW;
#endif
}
#ifdef CONFIG_FB_TILEBLITTING
extern void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info);
#endif
extern void fbcon_set_bitops_ur(struct fbcon_par *par);
extern int soft_cursor(struct fb_info *info, struct fb_cursor *cursor);
void fbcon_fill_cursor_mask(struct fbcon_par *par, struct vc_data *vc, unsigned char *mask);
#define FBCON_ATTRIBUTE_UNDERLINE 1
#define FBCON_ATTRIBUTE_REVERSE 2
#define FBCON_ATTRIBUTE_BOLD 4
static inline int real_y(struct fbcon_display *p, int ypos)
{
int rows = p->vrows;
ypos += p->yscroll;
return ypos < rows ? ypos : ypos - rows;
}
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
void __init fb_console_init(void);
void __exit fb_console_exit(void);
int fbcon_fb_registered(struct fb_info *info);
void fbcon_fb_unregistered(struct fb_info *info);
void fbcon_fb_unbind(struct fb_info *info);
void fbcon_suspended(struct fb_info *info);
void fbcon_resumed(struct fb_info *info);
int fbcon_mode_deleted(struct fb_info *info,
struct fb_videomode *mode);
void fbcon_delete_modelist(struct list_head *head);
void fbcon_new_modelist(struct fb_info *info);
void fbcon_get_requirement(struct fb_info *info,
struct fb_blit_caps *caps);
void fbcon_fb_blanked(struct fb_info *info, int blank);
int fbcon_modechange_possible(struct fb_info *info,
struct fb_var_screeninfo *var);
void fbcon_update_vcs(struct fb_info *info, bool all);
void fbcon_remap_all(struct fb_info *info);
int fbcon_set_con2fb_map_ioctl(void __user *argp);
int fbcon_get_con2fb_map_ioctl(void __user *argp);
#else
static inline void fb_console_init(void) {}
static inline void fb_console_exit(void) {}
static inline int fbcon_fb_registered(struct fb_info *info) { return 0; }
static inline void fbcon_fb_unregistered(struct fb_info *info) {}
static inline void fbcon_fb_unbind(struct fb_info *info) {}
static inline void fbcon_suspended(struct fb_info *info) {}
static inline void fbcon_resumed(struct fb_info *info) {}
static inline int fbcon_mode_deleted(struct fb_info *info,
struct fb_videomode *mode) { return 0; }
static inline void fbcon_delete_modelist(struct list_head *head) {}
static inline void fbcon_new_modelist(struct fb_info *info) {}
static inline void fbcon_get_requirement(struct fb_info *info,
struct fb_blit_caps *caps) {}
static inline void fbcon_fb_blanked(struct fb_info *info, int blank) {}
static inline int fbcon_modechange_possible(struct fb_info *info,
struct fb_var_screeninfo *var) { return 0; }
static inline void fbcon_update_vcs(struct fb_info *info, bool all) {}
static inline void fbcon_remap_all(struct fb_info *info) {}
static inline int fbcon_set_con2fb_map_ioctl(void __user *argp) { return 0; }
static inline int fbcon_get_con2fb_map_ioctl(void __user *argp) { return 0; }
#endif
#endif /* _VIDEO_FBCON_H */