2 * linux/drivers/video/fbcon.c -- Low level frame buffer based console driver
4 * Copyright (C) 1995 Geert Uytterhoeven
7 * This file is based on the original Amiga console driver (amicon.c):
9 * Copyright (C) 1993 Hamish Macdonald
11 * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk]
13 * with work by William Rucklidge (wjr@cs.cornell.edu)
15 * Jes Sorensen (jds@kom.auc.dk)
18 * and on the original Atari console driver (atacon.c):
20 * Copyright (C) 1993 Bjoern Brauel
23 * with work by Guenther Kelleter
27 * Hardware cursor support added by Emmanuel Marty (core@ggi-project.org)
28 * Smart redraw scrolling, arbitrary font width support, 512char font support
29 * and software scrollback added by
30 * Jakub Jelinek (jj@ultra.linux.cz)
32 * Random hacking by Martin Mares <mj@ucw.cz>
34 * 2001 - Documented with DocBook
35 * - Brad Douglas <brad@neruo.com>
37 * The low level operations for the various display memory organizations are
38 * now in separate source files.
40 * Currently the following organizations are supported:
42 * o afb Amiga bitplanes
43 * o cfb{2,4,8,16,24,32} Packed pixels
44 * o ilbm Amiga interleaved bitplanes
45 * o iplan2p[248] Atari interleaved bitplanes
47 * o vga VGA characters/attributes
51 * - Implement 16 plane mode (iplan2p16)
54 * This file is subject to the terms and conditions of the GNU General Public
55 * License. See the file COPYING in the main directory of this archive for
61 #include <linux/module.h>
62 #include <linux/types.h>
63 #include <linux/sched.h>
65 #include <linux/kernel.h>
66 #include <linux/delay.h> /* MSch: for IRQ probe */
67 #include <linux/tty.h>
68 #include <linux/console.h>
69 #include <linux/string.h>
71 #include <linux/slab.h>
73 #include <linux/vt_kern.h>
74 #include <linux/selection.h>
75 #include <linux/font.h>
76 #include <linux/smp.h>
77 #include <linux/init.h>
78 #include <linux/interrupt.h>
79 #include <linux/crc32.h> /* For counting font checksums */
81 #include <asm/system.h>
82 #include <asm/uaccess.h>
84 #include <asm/atariints.h>
87 #include <asm/macints.h>
89 #if defined(__mc68000__) || defined(CONFIG_APUS)
90 #include <asm/machdep.h>
91 #include <asm/setup.h>
97 # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
99 # define DPRINTK(fmt, args...)
103 FBCON_LOGO_CANSHOW
= -1, /* the logo can be shown */
104 FBCON_LOGO_DRAW
= -2, /* draw the logo to a console */
105 FBCON_LOGO_DONTSHOW
= -3 /* do not show the logo */
108 static struct display fb_display
[MAX_NR_CONSOLES
];
110 static signed char con2fb_map
[MAX_NR_CONSOLES
];
111 static signed char con2fb_map_boot
[MAX_NR_CONSOLES
];
112 static int logo_height
;
113 static int logo_lines
;
114 /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO
116 static int logo_shown
= FBCON_LOGO_CANSHOW
;
117 /* Software scrollback */
118 static int fbcon_softback_size
= 32768;
119 static unsigned long softback_buf
, softback_curr
;
120 static unsigned long softback_in
;
121 static unsigned long softback_top
, softback_end
;
122 static int softback_lines
;
123 /* console mappings */
124 static int first_fb_vc
;
125 static int last_fb_vc
= MAX_NR_CONSOLES
- 1;
126 static int fbcon_is_default
= 1;
127 static int fbcon_has_exited
;
130 static char fontname
[40];
132 /* current fb_info */
133 static int info_idx
= -1;
135 /* console rotation */
138 static const struct consw fb_con
;
140 #define CM_SOFTBACK (8)
142 #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row)
144 static int fbcon_set_origin(struct vc_data
*);
146 #define CURSOR_DRAW_DELAY (1)
148 /* # VBL ints between cursor state changes */
149 #define ATARI_CURSOR_BLINK_RATE (42)
150 #define MAC_CURSOR_BLINK_RATE (32)
151 #define DEFAULT_CURSOR_BLINK_RATE (20)
153 static int vbl_cursor_cnt
;
155 #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1)
158 * Interface used by the world
161 static const char *fbcon_startup(void);
162 static void fbcon_init(struct vc_data
*vc
, int init
);
163 static void fbcon_deinit(struct vc_data
*vc
);
164 static void fbcon_clear(struct vc_data
*vc
, int sy
, int sx
, int height
,
166 static void fbcon_putc(struct vc_data
*vc
, int c
, int ypos
, int xpos
);
167 static void fbcon_putcs(struct vc_data
*vc
, const unsigned short *s
,
168 int count
, int ypos
, int xpos
);
169 static void fbcon_clear_margins(struct vc_data
*vc
, int bottom_only
);
170 static void fbcon_cursor(struct vc_data
*vc
, int mode
);
171 static int fbcon_scroll(struct vc_data
*vc
, int t
, int b
, int dir
,
173 static void fbcon_bmove(struct vc_data
*vc
, int sy
, int sx
, int dy
, int dx
,
174 int height
, int width
);
175 static int fbcon_switch(struct vc_data
*vc
);
176 static int fbcon_blank(struct vc_data
*vc
, int blank
, int mode_switch
);
177 static int fbcon_set_palette(struct vc_data
*vc
, unsigned char *table
);
178 static int fbcon_scrolldelta(struct vc_data
*vc
, int lines
);
183 static __inline__
void ywrap_up(struct vc_data
*vc
, int count
);
184 static __inline__
void ywrap_down(struct vc_data
*vc
, int count
);
185 static __inline__
void ypan_up(struct vc_data
*vc
, int count
);
186 static __inline__
void ypan_down(struct vc_data
*vc
, int count
);
187 static void fbcon_bmove_rec(struct vc_data
*vc
, struct display
*p
, int sy
, int sx
,
188 int dy
, int dx
, int height
, int width
, u_int y_break
);
189 static void fbcon_set_disp(struct fb_info
*info
, struct fb_var_screeninfo
*var
,
191 static void fbcon_preset_disp(struct fb_info
*info
, struct fb_var_screeninfo
*var
,
193 static void fbcon_redraw_move(struct vc_data
*vc
, struct display
*p
,
194 int line
, int count
, int dy
);
195 static void fbcon_modechanged(struct fb_info
*info
);
196 static void fbcon_set_all_vcs(struct fb_info
*info
);
197 static void fbcon_start(void);
198 static void fbcon_exit(void);
199 static struct class_device
*fbcon_class_device
;
203 * On the Macintoy, there may or may not be a working VBL int. We need to probe
205 static int vbl_detected
;
207 static irqreturn_t
fb_vbl_detect(int irq
, void *dummy
, struct pt_regs
*fp
)
214 #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION
215 static inline void fbcon_set_rotation(struct fb_info
*info
)
217 struct fbcon_ops
*ops
= info
->fbcon_par
;
219 if (!(info
->flags
& FBINFO_MISC_TILEBLITTING
) &&
220 ops
->p
->con_rotate
< 4)
221 ops
->rotate
= ops
->p
->con_rotate
;
226 static void fbcon_rotate(struct fb_info
*info
, u32 rotate
)
228 struct fbcon_ops
*ops
= info
->fbcon_par
;
229 struct fb_info
*fb_info
;
231 if (!ops
|| ops
->currcon
== -1)
234 fb_info
= registered_fb
[con2fb_map
[ops
->currcon
]];
236 if (info
== fb_info
) {
237 struct display
*p
= &fb_display
[ops
->currcon
];
240 p
->con_rotate
= rotate
;
244 fbcon_modechanged(info
);
248 static void fbcon_rotate_all(struct fb_info
*info
, u32 rotate
)
250 struct fbcon_ops
*ops
= info
->fbcon_par
;
255 if (!ops
|| ops
->currcon
< 0 || rotate
> 3)
258 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
260 if (!vc
|| vc
->vc_mode
!= KD_TEXT
||
261 registered_fb
[con2fb_map
[i
]] != info
)
264 p
= &fb_display
[vc
->vc_num
];
265 p
->con_rotate
= rotate
;
268 fbcon_set_all_vcs(info
);
271 static inline void fbcon_set_rotation(struct fb_info
*info
)
273 struct fbcon_ops
*ops
= info
->fbcon_par
;
275 ops
->rotate
= FB_ROTATE_UR
;
278 static void fbcon_rotate(struct fb_info
*info
, u32 rotate
)
283 static void fbcon_rotate_all(struct fb_info
*info
, u32 rotate
)
287 #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */
289 static int fbcon_get_rotate(struct fb_info
*info
)
291 struct fbcon_ops
*ops
= info
->fbcon_par
;
293 return (ops
) ? ops
->rotate
: 0;
296 static inline int fbcon_is_inactive(struct vc_data
*vc
, struct fb_info
*info
)
298 struct fbcon_ops
*ops
= info
->fbcon_par
;
300 return (info
->state
!= FBINFO_STATE_RUNNING
||
301 vc
->vc_mode
!= KD_TEXT
|| ops
->graphics
);
304 static inline int get_color(struct vc_data
*vc
, struct fb_info
*info
,
307 int depth
= fb_get_color_depth(&info
->var
, &info
->fix
);
310 if (console_blanked
) {
311 unsigned short charmask
= vc
->vc_hi_font_mask
? 0x1ff : 0xff;
313 c
= vc
->vc_video_erase_char
& charmask
;
317 color
= (is_fg
) ? attr_fgcol((vc
->vc_hi_font_mask
) ? 9 : 8, c
)
318 : attr_bgcol((vc
->vc_hi_font_mask
) ? 13 : 12, c
);
323 int col
= ~(0xfff << (max(info
->var
.green
.length
,
324 max(info
->var
.red
.length
,
325 info
->var
.blue
.length
)))) & 0xff;
328 int fg
= (info
->fix
.visual
!= FB_VISUAL_MONO01
) ? col
: 0;
329 int bg
= (info
->fix
.visual
!= FB_VISUAL_MONO01
) ? 0 : col
;
334 color
= (is_fg
) ? fg
: bg
;
339 * Scale down 16-colors to 4 colors. Default 4-color palette
340 * is grayscale. However, simply dividing the values by 4
341 * will not work, as colors 1, 2 and 3 will be scaled-down
342 * to zero rendering them invisible. So empirically convert
343 * colors to a sane 4-level grayscale.
347 color
= 0; /* black */
350 color
= 2; /* white */
353 color
= 1; /* gray */
356 color
= 3; /* intense white */
362 * Last 8 entries of default 16-color palette is a more intense
363 * version of the first 8 (i.e., same chrominance, different
374 static void fbcon_update_softback(struct vc_data
*vc
)
376 int l
= fbcon_softback_size
/ vc
->vc_size_row
;
379 softback_end
= softback_buf
+ l
* vc
->vc_size_row
;
381 /* Smaller scrollback makes no sense, and 0 would screw
382 the operation totally */
386 static void fb_flashcursor(void *private)
388 struct fb_info
*info
= private;
389 struct fbcon_ops
*ops
= info
->fbcon_par
;
391 struct vc_data
*vc
= NULL
;
395 acquire_console_sem();
396 if (ops
&& ops
->currcon
!= -1)
397 vc
= vc_cons
[ops
->currcon
].d
;
399 if (!vc
|| !CON_IS_VISIBLE(vc
) ||
400 fbcon_is_inactive(vc
, info
) ||
401 registered_fb
[con2fb_map
[vc
->vc_num
]] != info
||
402 vc_cons
[ops
->currcon
].d
->vc_deccm
!= 1) {
403 release_console_sem();
407 p
= &fb_display
[vc
->vc_num
];
408 c
= scr_readw((u16
*) vc
->vc_pos
);
409 mode
= (!ops
->cursor_flash
|| ops
->cursor_state
.enable
) ?
411 ops
->cursor(vc
, info
, mode
, softback_lines
, get_color(vc
, info
, c
, 1),
412 get_color(vc
, info
, c
, 0));
413 release_console_sem();
416 #if defined(CONFIG_ATARI) || defined(CONFIG_MAC)
417 static int cursor_blink_rate
;
418 static irqreturn_t
fb_vbl_handler(int irq
, void *dev_id
, struct pt_regs
*fp
)
420 struct fb_info
*info
= dev_id
;
422 if (vbl_cursor_cnt
&& --vbl_cursor_cnt
== 0) {
423 schedule_work(&info
->queue
);
424 vbl_cursor_cnt
= cursor_blink_rate
;
430 static void cursor_timer_handler(unsigned long dev_addr
)
432 struct fb_info
*info
= (struct fb_info
*) dev_addr
;
433 struct fbcon_ops
*ops
= info
->fbcon_par
;
435 schedule_work(&info
->queue
);
436 mod_timer(&ops
->cursor_timer
, jiffies
+ HZ
/5);
439 static void fbcon_add_cursor_timer(struct fb_info
*info
)
441 struct fbcon_ops
*ops
= info
->fbcon_par
;
443 if ((!info
->queue
.func
|| info
->queue
.func
== fb_flashcursor
) &&
444 !(ops
->flags
& FBCON_FLAGS_CURSOR_TIMER
)) {
445 if (!info
->queue
.func
)
446 INIT_WORK(&info
->queue
, fb_flashcursor
, info
);
448 init_timer(&ops
->cursor_timer
);
449 ops
->cursor_timer
.function
= cursor_timer_handler
;
450 ops
->cursor_timer
.expires
= jiffies
+ HZ
/ 5;
451 ops
->cursor_timer
.data
= (unsigned long ) info
;
452 add_timer(&ops
->cursor_timer
);
453 ops
->flags
|= FBCON_FLAGS_CURSOR_TIMER
;
457 static void fbcon_del_cursor_timer(struct fb_info
*info
)
459 struct fbcon_ops
*ops
= info
->fbcon_par
;
461 if (info
->queue
.func
== fb_flashcursor
&&
462 ops
->flags
& FBCON_FLAGS_CURSOR_TIMER
) {
463 del_timer_sync(&ops
->cursor_timer
);
464 ops
->flags
&= ~FBCON_FLAGS_CURSOR_TIMER
;
469 static int __init
fb_console_setup(char *this_opt
)
474 if (!this_opt
|| !*this_opt
)
477 while ((options
= strsep(&this_opt
, ",")) != NULL
) {
478 if (!strncmp(options
, "font:", 5))
479 strcpy(fontname
, options
+ 5);
481 if (!strncmp(options
, "scrollback:", 11)) {
484 fbcon_softback_size
= simple_strtoul(options
, &options
, 0);
485 if (*options
== 'k' || *options
== 'K') {
486 fbcon_softback_size
*= 1024;
496 if (!strncmp(options
, "map:", 4)) {
499 for (i
= 0, j
= 0; i
< MAX_NR_CONSOLES
; i
++) {
503 (options
[j
++]-'0') % FB_MAX
;
508 if (!strncmp(options
, "vc:", 3)) {
511 first_fb_vc
= simple_strtoul(options
, &options
, 10) - 1;
514 if (*options
++ == '-')
515 last_fb_vc
= simple_strtoul(options
, &options
, 10) - 1;
516 fbcon_is_default
= 0;
519 if (!strncmp(options
, "rotate:", 7)) {
522 rotate
= simple_strtoul(options
, &options
, 0);
530 __setup("fbcon=", fb_console_setup
);
533 static int search_fb_in_map(int idx
)
537 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
538 if (con2fb_map
[i
] == idx
)
544 static int search_for_mapped_con(void)
548 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
549 if (con2fb_map
[i
] != -1)
555 static int fbcon_takeover(int show_logo
)
559 if (!num_registered_fb
)
563 logo_shown
= FBCON_LOGO_DONTSHOW
;
565 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++)
566 con2fb_map
[i
] = info_idx
;
568 err
= take_over_console(&fb_con
, first_fb_vc
, last_fb_vc
,
572 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
581 static void fbcon_prepare_logo(struct vc_data
*vc
, struct fb_info
*info
,
582 int cols
, int rows
, int new_cols
, int new_rows
)
584 /* Need to make room for the logo */
585 struct fbcon_ops
*ops
= info
->fbcon_par
;
586 int cnt
, erase
= vc
->vc_video_erase_char
, step
;
587 unsigned short *save
= NULL
, *r
, *q
;
590 * remove underline attribute from erase character
591 * if black and white framebuffer.
593 if (fb_get_color_depth(&info
->var
, &info
->fix
) == 1)
595 logo_height
= fb_prepare_logo(info
, ops
->rotate
);
596 logo_lines
= (logo_height
+ vc
->vc_font
.height
- 1) /
598 q
= (unsigned short *) (vc
->vc_origin
+
599 vc
->vc_size_row
* rows
);
600 step
= logo_lines
* cols
;
601 for (r
= q
- logo_lines
* cols
; r
< q
; r
++)
602 if (scr_readw(r
) != vc
->vc_video_erase_char
)
604 if (r
!= q
&& new_rows
>= rows
+ logo_lines
) {
605 save
= kmalloc(logo_lines
* new_cols
* 2, GFP_KERNEL
);
607 int i
= cols
< new_cols
? cols
: new_cols
;
608 scr_memsetw(save
, erase
, logo_lines
* new_cols
* 2);
610 for (cnt
= 0; cnt
< logo_lines
; cnt
++, r
+= i
)
611 scr_memcpyw(save
+ cnt
* new_cols
, r
, 2 * i
);
616 /* We can scroll screen down */
618 for (cnt
= rows
- logo_lines
; cnt
> 0; cnt
--) {
619 scr_memcpyw(r
+ step
, r
, vc
->vc_size_row
);
623 vc
->vc_y
+= logo_lines
;
624 vc
->vc_pos
+= logo_lines
* vc
->vc_size_row
;
627 scr_memsetw((unsigned short *) vc
->vc_origin
,
629 vc
->vc_size_row
* logo_lines
);
631 if (CON_IS_VISIBLE(vc
) && vc
->vc_mode
== KD_TEXT
) {
632 fbcon_clear_margins(vc
, 0);
637 q
= (unsigned short *) (vc
->vc_origin
+
640 scr_memcpyw(q
, save
, logo_lines
* new_cols
* 2);
641 vc
->vc_y
+= logo_lines
;
642 vc
->vc_pos
+= logo_lines
* vc
->vc_size_row
;
646 if (logo_lines
> vc
->vc_bottom
) {
647 logo_shown
= FBCON_LOGO_CANSHOW
;
649 "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n");
650 } else if (logo_shown
!= FBCON_LOGO_DONTSHOW
) {
651 logo_shown
= FBCON_LOGO_DRAW
;
652 vc
->vc_top
= logo_lines
;
656 #ifdef CONFIG_FB_TILEBLITTING
657 static void set_blitting_type(struct vc_data
*vc
, struct fb_info
*info
)
659 struct fbcon_ops
*ops
= info
->fbcon_par
;
661 ops
->p
= &fb_display
[vc
->vc_num
];
663 if ((info
->flags
& FBINFO_MISC_TILEBLITTING
))
664 fbcon_set_tileops(vc
, info
);
666 fbcon_set_rotation(info
);
667 fbcon_set_bitops(ops
);
671 static void set_blitting_type(struct vc_data
*vc
, struct fb_info
*info
)
673 struct fbcon_ops
*ops
= info
->fbcon_par
;
675 info
->flags
&= ~FBINFO_MISC_TILEBLITTING
;
676 ops
->p
= &fb_display
[vc
->vc_num
];
677 fbcon_set_rotation(info
);
678 fbcon_set_bitops(ops
);
680 #endif /* CONFIG_MISC_TILEBLITTING */
683 static int con2fb_acquire_newinfo(struct vc_data
*vc
, struct fb_info
*info
,
684 int unit
, int oldidx
)
686 struct fbcon_ops
*ops
= NULL
;
689 if (!try_module_get(info
->fbops
->owner
))
692 if (!err
&& info
->fbops
->fb_open
&&
693 info
->fbops
->fb_open(info
, 0))
697 ops
= kzalloc(sizeof(struct fbcon_ops
), GFP_KERNEL
);
703 info
->fbcon_par
= ops
;
704 set_blitting_type(vc
, info
);
708 con2fb_map
[unit
] = oldidx
;
709 module_put(info
->fbops
->owner
);
715 static int con2fb_release_oldinfo(struct vc_data
*vc
, struct fb_info
*oldinfo
,
716 struct fb_info
*newinfo
, int unit
,
717 int oldidx
, int found
)
719 struct fbcon_ops
*ops
= oldinfo
->fbcon_par
;
722 if (oldinfo
->fbops
->fb_release
&&
723 oldinfo
->fbops
->fb_release(oldinfo
, 0)) {
724 con2fb_map
[unit
] = oldidx
;
725 if (!found
&& newinfo
->fbops
->fb_release
)
726 newinfo
->fbops
->fb_release(newinfo
, 0);
728 module_put(newinfo
->fbops
->owner
);
733 fbcon_del_cursor_timer(oldinfo
);
734 kfree(ops
->cursor_state
.mask
);
735 kfree(ops
->cursor_data
);
736 kfree(ops
->fontbuffer
);
737 kfree(oldinfo
->fbcon_par
);
738 oldinfo
->fbcon_par
= NULL
;
739 module_put(oldinfo
->fbops
->owner
);
741 If oldinfo and newinfo are driving the same hardware,
742 the fb_release() method of oldinfo may attempt to
743 restore the hardware state. This will leave the
744 newinfo in an undefined state. Thus, a call to
745 fb_set_par() may be needed for the newinfo.
747 if (newinfo
->fbops
->fb_set_par
)
748 newinfo
->fbops
->fb_set_par(newinfo
);
754 static void con2fb_init_display(struct vc_data
*vc
, struct fb_info
*info
,
755 int unit
, int show_logo
)
757 struct fbcon_ops
*ops
= info
->fbcon_par
;
759 ops
->currcon
= fg_console
;
761 if (info
->fbops
->fb_set_par
&& !(ops
->flags
& FBCON_FLAGS_INIT
))
762 info
->fbops
->fb_set_par(info
);
764 ops
->flags
|= FBCON_FLAGS_INIT
;
768 fbcon_set_disp(info
, &info
->var
, vc
);
770 fbcon_preset_disp(info
, &info
->var
, unit
);
773 struct vc_data
*fg_vc
= vc_cons
[fg_console
].d
;
774 struct fb_info
*fg_info
=
775 registered_fb
[con2fb_map
[fg_console
]];
777 fbcon_prepare_logo(fg_vc
, fg_info
, fg_vc
->vc_cols
,
778 fg_vc
->vc_rows
, fg_vc
->vc_cols
,
782 update_screen(vc_cons
[fg_console
].d
);
786 * set_con2fb_map - map console to frame buffer device
787 * @unit: virtual console number to map
788 * @newidx: frame buffer index to map virtual console to
789 * @user: user request
791 * Maps a virtual console @unit to a frame buffer device
794 static int set_con2fb_map(int unit
, int newidx
, int user
)
796 struct vc_data
*vc
= vc_cons
[unit
].d
;
797 int oldidx
= con2fb_map
[unit
];
798 struct fb_info
*info
= registered_fb
[newidx
];
799 struct fb_info
*oldinfo
= NULL
;
802 if (oldidx
== newidx
)
805 if (!info
|| fbcon_has_exited
)
808 if (!err
&& !search_for_mapped_con()) {
810 return fbcon_takeover(0);
814 oldinfo
= registered_fb
[oldidx
];
816 found
= search_fb_in_map(newidx
);
818 acquire_console_sem();
819 con2fb_map
[unit
] = newidx
;
821 err
= con2fb_acquire_newinfo(vc
, info
, unit
, oldidx
);
825 * If old fb is not mapped to any of the consoles,
826 * fbcon should release it.
828 if (!err
&& oldinfo
&& !search_fb_in_map(oldidx
))
829 err
= con2fb_release_oldinfo(vc
, oldinfo
, info
, unit
, oldidx
,
833 int show_logo
= (fg_console
== 0 && !user
&&
834 logo_shown
!= FBCON_LOGO_DONTSHOW
);
837 fbcon_add_cursor_timer(info
);
838 con2fb_map_boot
[unit
] = newidx
;
839 con2fb_init_display(vc
, info
, unit
, show_logo
);
842 if (!search_fb_in_map(info_idx
))
845 release_console_sem();
850 * Low Level Operations
852 /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */
853 static int var_to_display(struct display
*disp
,
854 struct fb_var_screeninfo
*var
,
855 struct fb_info
*info
)
857 disp
->xres_virtual
= var
->xres_virtual
;
858 disp
->yres_virtual
= var
->yres_virtual
;
859 disp
->bits_per_pixel
= var
->bits_per_pixel
;
860 disp
->grayscale
= var
->grayscale
;
861 disp
->nonstd
= var
->nonstd
;
862 disp
->accel_flags
= var
->accel_flags
;
863 disp
->height
= var
->height
;
864 disp
->width
= var
->width
;
865 disp
->red
= var
->red
;
866 disp
->green
= var
->green
;
867 disp
->blue
= var
->blue
;
868 disp
->transp
= var
->transp
;
869 disp
->rotate
= var
->rotate
;
870 disp
->mode
= fb_match_mode(var
, &info
->modelist
);
871 if (disp
->mode
== NULL
)
872 /* This should not happen */
877 static void display_to_var(struct fb_var_screeninfo
*var
,
878 struct display
*disp
)
880 fb_videomode_to_var(var
, disp
->mode
);
881 var
->xres_virtual
= disp
->xres_virtual
;
882 var
->yres_virtual
= disp
->yres_virtual
;
883 var
->bits_per_pixel
= disp
->bits_per_pixel
;
884 var
->grayscale
= disp
->grayscale
;
885 var
->nonstd
= disp
->nonstd
;
886 var
->accel_flags
= disp
->accel_flags
;
887 var
->height
= disp
->height
;
888 var
->width
= disp
->width
;
889 var
->red
= disp
->red
;
890 var
->green
= disp
->green
;
891 var
->blue
= disp
->blue
;
892 var
->transp
= disp
->transp
;
893 var
->rotate
= disp
->rotate
;
896 static const char *fbcon_startup(void)
898 const char *display_desc
= "frame buffer device";
899 struct display
*p
= &fb_display
[fg_console
];
900 struct vc_data
*vc
= vc_cons
[fg_console
].d
;
901 const struct font_desc
*font
= NULL
;
902 struct module
*owner
;
903 struct fb_info
*info
= NULL
;
904 struct fbcon_ops
*ops
;
910 * If num_registered_fb is zero, this is a call for the dummy part.
911 * The frame buffer devices weren't initialized yet.
913 if (!num_registered_fb
|| info_idx
== -1)
916 * Instead of blindly using registered_fb[0], we use info_idx, set by
919 info
= registered_fb
[info_idx
];
923 owner
= info
->fbops
->owner
;
924 if (!try_module_get(owner
))
926 if (info
->fbops
->fb_open
&& info
->fbops
->fb_open(info
, 0)) {
931 ops
= kzalloc(sizeof(struct fbcon_ops
), GFP_KERNEL
);
939 ops
->cur_rotate
= -1;
940 info
->fbcon_par
= ops
;
941 p
->con_rotate
= rotate
;
942 set_blitting_type(vc
, info
);
944 if (info
->fix
.type
!= FB_TYPE_TEXT
) {
945 if (fbcon_softback_size
) {
949 kmalloc(fbcon_softback_size
,
952 fbcon_softback_size
= 0;
958 kfree((void *) softback_buf
);
964 softback_in
= softback_top
= softback_curr
=
969 /* Setup default font */
971 if (!fontname
[0] || !(font
= find_font(fontname
)))
972 font
= get_default_font(info
->var
.xres
,
974 vc
->vc_font
.width
= font
->width
;
975 vc
->vc_font
.height
= font
->height
;
976 vc
->vc_font
.data
= (void *)(p
->fontdata
= font
->data
);
977 vc
->vc_font
.charcount
= 256; /* FIXME Need to support more fonts */
980 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
981 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
982 cols
/= vc
->vc_font
.width
;
983 rows
/= vc
->vc_font
.height
;
984 vc_resize(vc
, cols
, rows
);
986 DPRINTK("mode: %s\n", info
->fix
.id
);
987 DPRINTK("visual: %d\n", info
->fix
.visual
);
988 DPRINTK("res: %dx%d-%d\n", info
->var
.xres
,
990 info
->var
.bits_per_pixel
);
994 cursor_blink_rate
= ATARI_CURSOR_BLINK_RATE
;
996 request_irq(IRQ_AUTO_4
, fb_vbl_handler
,
997 IRQ_TYPE_PRIO
, "framebuffer vbl",
1000 #endif /* CONFIG_ATARI */
1004 * On a Macintoy, the VBL interrupt may or may not be active.
1005 * As interrupt based cursor is more reliable and race free, we
1006 * probe for VBL interrupts.
1011 * Probe for VBL: set temp. handler ...
1013 irqres
= request_irq(IRQ_MAC_VBL
, fb_vbl_detect
, 0,
1014 "framebuffer vbl", info
);
1018 * ... and spin for 20 ms ...
1020 while (!vbl_detected
&& ++ct
< 1000)
1025 ("fbcon_startup: No VBL detected, using timer based cursor.\n");
1027 free_irq(IRQ_MAC_VBL
, fb_vbl_detect
);
1031 * interrupt based cursor ok
1033 cursor_blink_rate
= MAC_CURSOR_BLINK_RATE
;
1035 request_irq(IRQ_MAC_VBL
, fb_vbl_handler
, 0,
1036 "framebuffer vbl", info
);
1039 * VBL not detected: fall through, use timer based cursor
1044 #endif /* CONFIG_MAC */
1046 fbcon_add_cursor_timer(info
);
1047 fbcon_has_exited
= 0;
1048 return display_desc
;
1051 static void fbcon_init(struct vc_data
*vc
, int init
)
1053 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1054 struct fbcon_ops
*ops
;
1055 struct vc_data
**default_mode
= vc
->vc_display_fg
;
1056 struct vc_data
*svc
= *default_mode
;
1057 struct display
*t
, *p
= &fb_display
[vc
->vc_num
];
1058 int logo
= 1, new_rows
, new_cols
, rows
, cols
, charcnt
= 256;
1061 if (info_idx
== -1 || info
== NULL
)
1066 if (vc
!= svc
|| logo_shown
== FBCON_LOGO_DONTSHOW
||
1067 (info
->fix
.type
== FB_TYPE_TEXT
))
1070 if (var_to_display(p
, &info
->var
, info
))
1073 /* If we are not the first console on this
1074 fb, copy the font from that console */
1075 t
= &fb_display
[fg_console
];
1078 struct vc_data
*fvc
= vc_cons
[fg_console
].d
;
1080 vc
->vc_font
.data
= (void *)(p
->fontdata
=
1082 vc
->vc_font
.width
= fvc
->vc_font
.width
;
1083 vc
->vc_font
.height
= fvc
->vc_font
.height
;
1084 p
->userfont
= t
->userfont
;
1087 REFCOUNT(p
->fontdata
)++;
1089 const struct font_desc
*font
= NULL
;
1091 if (!fontname
[0] || !(font
= find_font(fontname
)))
1092 font
= get_default_font(info
->var
.xres
,
1094 vc
->vc_font
.width
= font
->width
;
1095 vc
->vc_font
.height
= font
->height
;
1096 vc
->vc_font
.data
= (void *)(p
->fontdata
= font
->data
);
1097 vc
->vc_font
.charcount
= 256; /* FIXME Need to
1098 support more fonts */
1103 charcnt
= FNTCHARCNT(p
->fontdata
);
1105 vc
->vc_can_do_color
= (fb_get_color_depth(&info
->var
, &info
->fix
)!=1);
1106 vc
->vc_complement_mask
= vc
->vc_can_do_color
? 0x7700 : 0x0800;
1107 if (charcnt
== 256) {
1108 vc
->vc_hi_font_mask
= 0;
1110 vc
->vc_hi_font_mask
= 0x100;
1111 if (vc
->vc_can_do_color
)
1112 vc
->vc_complement_mask
<<= 1;
1115 if (!*svc
->vc_uni_pagedir_loc
)
1116 con_set_default_unimap(svc
);
1117 if (!*vc
->vc_uni_pagedir_loc
)
1118 con_copy_unimap(vc
, svc
);
1120 ops
= info
->fbcon_par
;
1121 p
->con_rotate
= rotate
;
1122 set_blitting_type(vc
, info
);
1126 new_cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
1127 new_rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
1128 new_cols
/= vc
->vc_font
.width
;
1129 new_rows
/= vc
->vc_font
.height
;
1130 vc_resize(vc
, new_cols
, new_rows
);
1133 * We must always set the mode. The mode of the previous console
1134 * driver could be in the same resolution but we are using different
1135 * hardware so we have to initialize the hardware.
1137 * We need to do it in fbcon_init() to prevent screen corruption.
1139 if (CON_IS_VISIBLE(vc
) && vc
->vc_mode
== KD_TEXT
) {
1140 if (info
->fbops
->fb_set_par
&&
1141 !(ops
->flags
& FBCON_FLAGS_INIT
))
1142 info
->fbops
->fb_set_par(info
);
1143 ops
->flags
|= FBCON_FLAGS_INIT
;
1148 if ((cap
& FBINFO_HWACCEL_COPYAREA
) &&
1149 !(cap
& FBINFO_HWACCEL_DISABLED
))
1150 p
->scrollmode
= SCROLL_MOVE
;
1151 else /* default to something safe */
1152 p
->scrollmode
= SCROLL_REDRAW
;
1155 * ++guenther: console.c:vc_allocate() relies on initializing
1156 * vc_{cols,rows}, but we must not set those if we are only
1157 * resizing the console.
1160 vc
->vc_cols
= new_cols
;
1161 vc
->vc_rows
= new_rows
;
1165 fbcon_prepare_logo(vc
, info
, cols
, rows
, new_cols
, new_rows
);
1167 if (vc
== svc
&& softback_buf
)
1168 fbcon_update_softback(vc
);
1170 if (ops
->rotate_font
&& ops
->rotate_font(info
, vc
)) {
1171 ops
->rotate
= FB_ROTATE_UR
;
1172 set_blitting_type(vc
, info
);
1175 ops
->p
= &fb_display
[fg_console
];
1178 static void fbcon_free_font(struct display
*p
)
1180 if (p
->userfont
&& p
->fontdata
&& (--REFCOUNT(p
->fontdata
) == 0))
1181 kfree(p
->fontdata
- FONT_EXTRA_WORDS
* sizeof(int));
1186 static void fbcon_deinit(struct vc_data
*vc
)
1188 struct display
*p
= &fb_display
[vc
->vc_num
];
1189 struct fb_info
*info
;
1190 struct fbcon_ops
*ops
;
1194 idx
= con2fb_map
[vc
->vc_num
];
1199 info
= registered_fb
[idx
];
1204 ops
= info
->fbcon_par
;
1209 if (CON_IS_VISIBLE(vc
))
1210 fbcon_del_cursor_timer(info
);
1212 ops
->flags
&= ~FBCON_FLAGS_INIT
;
1215 if (!con_is_bound(&fb_con
))
1221 /* ====================================================================== */
1223 /* fbcon_XXX routines - interface used by the world
1225 * This system is now divided into two levels because of complications
1226 * caused by hardware scrolling. Top level functions:
1228 * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins()
1230 * handles y values in range [0, scr_height-1] that correspond to real
1231 * screen positions. y_wrap shift means that first line of bitmap may be
1232 * anywhere on this display. These functions convert lineoffsets to
1233 * bitmap offsets and deal with the wrap-around case by splitting blits.
1235 * fbcon_bmove_physical_8() -- These functions fast implementations
1236 * fbcon_clear_physical_8() -- of original fbcon_XXX fns.
1237 * fbcon_putc_physical_8() -- (font width != 8) may be added later
1241 * At the moment fbcon_putc() cannot blit across vertical wrap boundary
1242 * Implies should only really hardware scroll in rows. Only reason for
1243 * restriction is simplicity & efficiency at the moment.
1246 static void fbcon_clear(struct vc_data
*vc
, int sy
, int sx
, int height
,
1249 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1250 struct fbcon_ops
*ops
= info
->fbcon_par
;
1252 struct display
*p
= &fb_display
[vc
->vc_num
];
1255 if (fbcon_is_inactive(vc
, info
))
1258 if (!height
|| !width
)
1261 /* Split blits that cross physical y_wrap boundary */
1263 y_break
= p
->vrows
- p
->yscroll
;
1264 if (sy
< y_break
&& sy
+ height
- 1 >= y_break
) {
1265 u_int b
= y_break
- sy
;
1266 ops
->clear(vc
, info
, real_y(p
, sy
), sx
, b
, width
);
1267 ops
->clear(vc
, info
, real_y(p
, sy
+ b
), sx
, height
- b
,
1270 ops
->clear(vc
, info
, real_y(p
, sy
), sx
, height
, width
);
1273 static void fbcon_putcs(struct vc_data
*vc
, const unsigned short *s
,
1274 int count
, int ypos
, int xpos
)
1276 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1277 struct display
*p
= &fb_display
[vc
->vc_num
];
1278 struct fbcon_ops
*ops
= info
->fbcon_par
;
1280 if (!fbcon_is_inactive(vc
, info
))
1281 ops
->putcs(vc
, info
, s
, count
, real_y(p
, ypos
), xpos
,
1282 get_color(vc
, info
, scr_readw(s
), 1),
1283 get_color(vc
, info
, scr_readw(s
), 0));
1286 static void fbcon_putc(struct vc_data
*vc
, int c
, int ypos
, int xpos
)
1290 scr_writew(c
, &chr
);
1291 fbcon_putcs(vc
, &chr
, 1, ypos
, xpos
);
1294 static void fbcon_clear_margins(struct vc_data
*vc
, int bottom_only
)
1296 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1297 struct fbcon_ops
*ops
= info
->fbcon_par
;
1299 if (!fbcon_is_inactive(vc
, info
))
1300 ops
->clear_margins(vc
, info
, bottom_only
);
1303 static void fbcon_cursor(struct vc_data
*vc
, int mode
)
1305 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1306 struct fbcon_ops
*ops
= info
->fbcon_par
;
1308 int c
= scr_readw((u16
*) vc
->vc_pos
);
1310 if (fbcon_is_inactive(vc
, info
))
1313 ops
->cursor_flash
= (mode
== CM_ERASE
) ? 0 : 1;
1314 if (mode
& CM_SOFTBACK
) {
1315 mode
&= ~CM_SOFTBACK
;
1319 fbcon_set_origin(vc
);
1323 ops
->cursor(vc
, info
, mode
, y
, get_color(vc
, info
, c
, 1),
1324 get_color(vc
, info
, c
, 0));
1325 vbl_cursor_cnt
= CURSOR_DRAW_DELAY
;
1328 static int scrollback_phys_max
= 0;
1329 static int scrollback_max
= 0;
1330 static int scrollback_current
= 0;
1333 * If no vc is existent yet, just set struct display
1335 static void fbcon_preset_disp(struct fb_info
*info
, struct fb_var_screeninfo
*var
,
1338 struct display
*p
= &fb_display
[unit
];
1339 struct display
*t
= &fb_display
[fg_console
];
1341 if (var_to_display(p
, var
, info
))
1344 p
->fontdata
= t
->fontdata
;
1345 p
->userfont
= t
->userfont
;
1347 REFCOUNT(p
->fontdata
)++;
1350 static void fbcon_set_disp(struct fb_info
*info
, struct fb_var_screeninfo
*var
,
1353 struct display
*p
= &fb_display
[vc
->vc_num
], *t
;
1354 struct vc_data
**default_mode
= vc
->vc_display_fg
;
1355 struct vc_data
*svc
= *default_mode
;
1356 struct fbcon_ops
*ops
= info
->fbcon_par
;
1357 int rows
, cols
, charcnt
= 256;
1359 if (var_to_display(p
, var
, info
))
1361 t
= &fb_display
[svc
->vc_num
];
1362 if (!vc
->vc_font
.data
) {
1363 vc
->vc_font
.data
= (void *)(p
->fontdata
= t
->fontdata
);
1364 vc
->vc_font
.width
= (*default_mode
)->vc_font
.width
;
1365 vc
->vc_font
.height
= (*default_mode
)->vc_font
.height
;
1366 p
->userfont
= t
->userfont
;
1368 REFCOUNT(p
->fontdata
)++;
1371 charcnt
= FNTCHARCNT(p
->fontdata
);
1373 var
->activate
= FB_ACTIVATE_NOW
;
1374 info
->var
.activate
= var
->activate
;
1375 var
->yoffset
= info
->var
.yoffset
;
1376 var
->xoffset
= info
->var
.xoffset
;
1377 fb_set_var(info
, var
);
1378 ops
->var
= info
->var
;
1379 vc
->vc_can_do_color
= (fb_get_color_depth(&info
->var
, &info
->fix
)!=1);
1380 vc
->vc_complement_mask
= vc
->vc_can_do_color
? 0x7700 : 0x0800;
1381 if (charcnt
== 256) {
1382 vc
->vc_hi_font_mask
= 0;
1384 vc
->vc_hi_font_mask
= 0x100;
1385 if (vc
->vc_can_do_color
)
1386 vc
->vc_complement_mask
<<= 1;
1389 if (!*svc
->vc_uni_pagedir_loc
)
1390 con_set_default_unimap(svc
);
1391 if (!*vc
->vc_uni_pagedir_loc
)
1392 con_copy_unimap(vc
, svc
);
1394 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
1395 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
1396 cols
/= vc
->vc_font
.width
;
1397 rows
/= vc
->vc_font
.height
;
1398 vc_resize(vc
, cols
, rows
);
1400 if (CON_IS_VISIBLE(vc
)) {
1403 fbcon_update_softback(vc
);
1407 static __inline__
void ywrap_up(struct vc_data
*vc
, int count
)
1409 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1410 struct fbcon_ops
*ops
= info
->fbcon_par
;
1411 struct display
*p
= &fb_display
[vc
->vc_num
];
1413 p
->yscroll
+= count
;
1414 if (p
->yscroll
>= p
->vrows
) /* Deal with wrap */
1415 p
->yscroll
-= p
->vrows
;
1416 ops
->var
.xoffset
= 0;
1417 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1418 ops
->var
.vmode
|= FB_VMODE_YWRAP
;
1419 ops
->update_start(info
);
1420 scrollback_max
+= count
;
1421 if (scrollback_max
> scrollback_phys_max
)
1422 scrollback_max
= scrollback_phys_max
;
1423 scrollback_current
= 0;
1426 static __inline__
void ywrap_down(struct vc_data
*vc
, int count
)
1428 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1429 struct fbcon_ops
*ops
= info
->fbcon_par
;
1430 struct display
*p
= &fb_display
[vc
->vc_num
];
1432 p
->yscroll
-= count
;
1433 if (p
->yscroll
< 0) /* Deal with wrap */
1434 p
->yscroll
+= p
->vrows
;
1435 ops
->var
.xoffset
= 0;
1436 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1437 ops
->var
.vmode
|= FB_VMODE_YWRAP
;
1438 ops
->update_start(info
);
1439 scrollback_max
-= count
;
1440 if (scrollback_max
< 0)
1442 scrollback_current
= 0;
1445 static __inline__
void ypan_up(struct vc_data
*vc
, int count
)
1447 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1448 struct display
*p
= &fb_display
[vc
->vc_num
];
1449 struct fbcon_ops
*ops
= info
->fbcon_par
;
1451 p
->yscroll
+= count
;
1452 if (p
->yscroll
> p
->vrows
- vc
->vc_rows
) {
1453 ops
->bmove(vc
, info
, p
->vrows
- vc
->vc_rows
,
1454 0, 0, 0, vc
->vc_rows
, vc
->vc_cols
);
1455 p
->yscroll
-= p
->vrows
- vc
->vc_rows
;
1458 ops
->var
.xoffset
= 0;
1459 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1460 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1461 ops
->update_start(info
);
1462 fbcon_clear_margins(vc
, 1);
1463 scrollback_max
+= count
;
1464 if (scrollback_max
> scrollback_phys_max
)
1465 scrollback_max
= scrollback_phys_max
;
1466 scrollback_current
= 0;
1469 static __inline__
void ypan_up_redraw(struct vc_data
*vc
, int t
, int count
)
1471 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1472 struct fbcon_ops
*ops
= info
->fbcon_par
;
1473 struct display
*p
= &fb_display
[vc
->vc_num
];
1475 p
->yscroll
+= count
;
1477 if (p
->yscroll
> p
->vrows
- vc
->vc_rows
) {
1478 p
->yscroll
-= p
->vrows
- vc
->vc_rows
;
1479 fbcon_redraw_move(vc
, p
, t
+ count
, vc
->vc_rows
- count
, t
);
1482 ops
->var
.xoffset
= 0;
1483 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1484 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1485 ops
->update_start(info
);
1486 fbcon_clear_margins(vc
, 1);
1487 scrollback_max
+= count
;
1488 if (scrollback_max
> scrollback_phys_max
)
1489 scrollback_max
= scrollback_phys_max
;
1490 scrollback_current
= 0;
1493 static __inline__
void ypan_down(struct vc_data
*vc
, int count
)
1495 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1496 struct display
*p
= &fb_display
[vc
->vc_num
];
1497 struct fbcon_ops
*ops
= info
->fbcon_par
;
1499 p
->yscroll
-= count
;
1500 if (p
->yscroll
< 0) {
1501 ops
->bmove(vc
, info
, 0, 0, p
->vrows
- vc
->vc_rows
,
1502 0, vc
->vc_rows
, vc
->vc_cols
);
1503 p
->yscroll
+= p
->vrows
- vc
->vc_rows
;
1506 ops
->var
.xoffset
= 0;
1507 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1508 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1509 ops
->update_start(info
);
1510 fbcon_clear_margins(vc
, 1);
1511 scrollback_max
-= count
;
1512 if (scrollback_max
< 0)
1514 scrollback_current
= 0;
1517 static __inline__
void ypan_down_redraw(struct vc_data
*vc
, int t
, int count
)
1519 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1520 struct fbcon_ops
*ops
= info
->fbcon_par
;
1521 struct display
*p
= &fb_display
[vc
->vc_num
];
1523 p
->yscroll
-= count
;
1525 if (p
->yscroll
< 0) {
1526 p
->yscroll
+= p
->vrows
- vc
->vc_rows
;
1527 fbcon_redraw_move(vc
, p
, t
, vc
->vc_rows
- count
, t
+ count
);
1530 ops
->var
.xoffset
= 0;
1531 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1532 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1533 ops
->update_start(info
);
1534 fbcon_clear_margins(vc
, 1);
1535 scrollback_max
-= count
;
1536 if (scrollback_max
< 0)
1538 scrollback_current
= 0;
1541 static void fbcon_redraw_softback(struct vc_data
*vc
, struct display
*p
,
1544 int count
= vc
->vc_rows
;
1545 unsigned short *d
, *s
;
1549 d
= (u16
*) softback_curr
;
1550 if (d
== (u16
*) softback_in
)
1551 d
= (u16
*) vc
->vc_origin
;
1552 n
= softback_curr
+ delta
* vc
->vc_size_row
;
1553 softback_lines
-= delta
;
1555 if (softback_curr
< softback_top
&& n
< softback_buf
) {
1556 n
+= softback_end
- softback_buf
;
1557 if (n
< softback_top
) {
1559 (softback_top
- n
) / vc
->vc_size_row
;
1562 } else if (softback_curr
>= softback_top
1563 && n
< softback_top
) {
1565 (softback_top
- n
) / vc
->vc_size_row
;
1569 if (softback_curr
> softback_in
&& n
>= softback_end
) {
1570 n
+= softback_buf
- softback_end
;
1571 if (n
> softback_in
) {
1575 } else if (softback_curr
<= softback_in
&& n
> softback_in
) {
1580 if (n
== softback_curr
)
1583 s
= (u16
*) softback_curr
;
1584 if (s
== (u16
*) softback_in
)
1585 s
= (u16
*) vc
->vc_origin
;
1587 unsigned short *start
;
1591 unsigned short attr
= 1;
1594 le
= advance_row(s
, 1);
1597 if (attr
!= (c
& 0xff00)) {
1600 fbcon_putcs(vc
, start
, s
- start
,
1606 if (c
== scr_readw(d
)) {
1608 fbcon_putcs(vc
, start
, s
- start
,
1621 fbcon_putcs(vc
, start
, s
- start
, line
, x
);
1623 if (d
== (u16
*) softback_end
)
1624 d
= (u16
*) softback_buf
;
1625 if (d
== (u16
*) softback_in
)
1626 d
= (u16
*) vc
->vc_origin
;
1627 if (s
== (u16
*) softback_end
)
1628 s
= (u16
*) softback_buf
;
1629 if (s
== (u16
*) softback_in
)
1630 s
= (u16
*) vc
->vc_origin
;
1634 static void fbcon_redraw_move(struct vc_data
*vc
, struct display
*p
,
1635 int line
, int count
, int dy
)
1637 unsigned short *s
= (unsigned short *)
1638 (vc
->vc_origin
+ vc
->vc_size_row
* line
);
1641 unsigned short *start
= s
;
1642 unsigned short *le
= advance_row(s
, 1);
1645 unsigned short attr
= 1;
1649 if (attr
!= (c
& 0xff00)) {
1652 fbcon_putcs(vc
, start
, s
- start
,
1658 console_conditional_schedule();
1662 fbcon_putcs(vc
, start
, s
- start
, dy
, x
);
1663 console_conditional_schedule();
1668 static void fbcon_redraw(struct vc_data
*vc
, struct display
*p
,
1669 int line
, int count
, int offset
)
1671 unsigned short *d
= (unsigned short *)
1672 (vc
->vc_origin
+ vc
->vc_size_row
* line
);
1673 unsigned short *s
= d
+ offset
;
1676 unsigned short *start
= s
;
1677 unsigned short *le
= advance_row(s
, 1);
1680 unsigned short attr
= 1;
1684 if (attr
!= (c
& 0xff00)) {
1687 fbcon_putcs(vc
, start
, s
- start
,
1693 if (c
== scr_readw(d
)) {
1695 fbcon_putcs(vc
, start
, s
- start
,
1705 console_conditional_schedule();
1710 fbcon_putcs(vc
, start
, s
- start
, line
, x
);
1711 console_conditional_schedule();
1716 /* NOTE: We subtract two lines from these pointers */
1717 s
-= vc
->vc_size_row
;
1718 d
-= vc
->vc_size_row
;
1723 static inline void fbcon_softback_note(struct vc_data
*vc
, int t
,
1728 if (vc
->vc_num
!= fg_console
)
1730 p
= (unsigned short *) (vc
->vc_origin
+ t
* vc
->vc_size_row
);
1733 scr_memcpyw((u16
*) softback_in
, p
, vc
->vc_size_row
);
1735 p
= advance_row(p
, 1);
1736 softback_in
+= vc
->vc_size_row
;
1737 if (softback_in
== softback_end
)
1738 softback_in
= softback_buf
;
1739 if (softback_in
== softback_top
) {
1740 softback_top
+= vc
->vc_size_row
;
1741 if (softback_top
== softback_end
)
1742 softback_top
= softback_buf
;
1745 softback_curr
= softback_in
;
1748 static int fbcon_scroll(struct vc_data
*vc
, int t
, int b
, int dir
,
1751 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1752 struct display
*p
= &fb_display
[vc
->vc_num
];
1753 struct fbcon_ops
*ops
= info
->fbcon_par
;
1754 int scroll_partial
= info
->flags
& FBINFO_PARTIAL_PAN_OK
;
1756 if (fbcon_is_inactive(vc
, info
))
1759 fbcon_cursor(vc
, CM_ERASE
);
1762 * ++Geert: Only use ywrap/ypan if the console is in text mode
1763 * ++Andrew: Only use ypan on hardware text mode when scrolling the
1764 * whole screen (prevents flicker).
1769 if (count
> vc
->vc_rows
) /* Maximum realistic size */
1770 count
= vc
->vc_rows
;
1772 fbcon_softback_note(vc
, t
, count
);
1773 if (logo_shown
>= 0)
1775 switch (p
->scrollmode
) {
1777 ops
->bmove(vc
, info
, t
+ count
, 0, t
, 0,
1778 b
- t
- count
, vc
->vc_cols
);
1779 ops
->clear(vc
, info
, b
- count
, 0, count
,
1783 case SCROLL_WRAP_MOVE
:
1784 if (b
- t
- count
> 3 * vc
->vc_rows
>> 2) {
1786 fbcon_bmove(vc
, 0, 0, count
, 0, t
,
1788 ywrap_up(vc
, count
);
1789 if (vc
->vc_rows
- b
> 0)
1790 fbcon_bmove(vc
, b
- count
, 0, b
, 0,
1793 } else if (info
->flags
& FBINFO_READS_FAST
)
1794 fbcon_bmove(vc
, t
+ count
, 0, t
, 0,
1795 b
- t
- count
, vc
->vc_cols
);
1798 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1801 case SCROLL_PAN_REDRAW
:
1802 if ((p
->yscroll
+ count
<=
1803 2 * (p
->vrows
- vc
->vc_rows
))
1804 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
1807 3 * vc
->vc_rows
>> 2)))) {
1809 fbcon_redraw_move(vc
, p
, 0, t
, count
);
1810 ypan_up_redraw(vc
, t
, count
);
1811 if (vc
->vc_rows
- b
> 0)
1812 fbcon_redraw_move(vc
, p
, b
,
1813 vc
->vc_rows
- b
, b
);
1815 fbcon_redraw_move(vc
, p
, t
+ count
, b
- t
- count
, t
);
1816 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1819 case SCROLL_PAN_MOVE
:
1820 if ((p
->yscroll
+ count
<=
1821 2 * (p
->vrows
- vc
->vc_rows
))
1822 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
1825 3 * vc
->vc_rows
>> 2)))) {
1827 fbcon_bmove(vc
, 0, 0, count
, 0, t
,
1830 if (vc
->vc_rows
- b
> 0)
1831 fbcon_bmove(vc
, b
- count
, 0, b
, 0,
1834 } else if (info
->flags
& FBINFO_READS_FAST
)
1835 fbcon_bmove(vc
, t
+ count
, 0, t
, 0,
1836 b
- t
- count
, vc
->vc_cols
);
1839 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1844 fbcon_redraw(vc
, p
, t
, b
- t
- count
,
1845 count
* vc
->vc_cols
);
1846 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1847 scr_memsetw((unsigned short *) (vc
->vc_origin
+
1850 vc
->vc_video_erase_char
,
1851 vc
->vc_size_row
* count
);
1857 if (count
> vc
->vc_rows
) /* Maximum realistic size */
1858 count
= vc
->vc_rows
;
1859 if (logo_shown
>= 0)
1861 switch (p
->scrollmode
) {
1863 ops
->bmove(vc
, info
, t
, 0, t
+ count
, 0,
1864 b
- t
- count
, vc
->vc_cols
);
1865 ops
->clear(vc
, info
, t
, 0, count
, vc
->vc_cols
);
1868 case SCROLL_WRAP_MOVE
:
1869 if (b
- t
- count
> 3 * vc
->vc_rows
>> 2) {
1870 if (vc
->vc_rows
- b
> 0)
1871 fbcon_bmove(vc
, b
, 0, b
- count
, 0,
1874 ywrap_down(vc
, count
);
1876 fbcon_bmove(vc
, count
, 0, 0, 0, t
,
1878 } else if (info
->flags
& FBINFO_READS_FAST
)
1879 fbcon_bmove(vc
, t
, 0, t
+ count
, 0,
1880 b
- t
- count
, vc
->vc_cols
);
1883 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
1886 case SCROLL_PAN_MOVE
:
1887 if ((count
- p
->yscroll
<= p
->vrows
- vc
->vc_rows
)
1888 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
1891 3 * vc
->vc_rows
>> 2)))) {
1892 if (vc
->vc_rows
- b
> 0)
1893 fbcon_bmove(vc
, b
, 0, b
- count
, 0,
1896 ypan_down(vc
, count
);
1898 fbcon_bmove(vc
, count
, 0, 0, 0, t
,
1900 } else if (info
->flags
& FBINFO_READS_FAST
)
1901 fbcon_bmove(vc
, t
, 0, t
+ count
, 0,
1902 b
- t
- count
, vc
->vc_cols
);
1905 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
1908 case SCROLL_PAN_REDRAW
:
1909 if ((count
- p
->yscroll
<= p
->vrows
- vc
->vc_rows
)
1910 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
1913 3 * vc
->vc_rows
>> 2)))) {
1914 if (vc
->vc_rows
- b
> 0)
1915 fbcon_redraw_move(vc
, p
, b
, vc
->vc_rows
- b
,
1917 ypan_down_redraw(vc
, t
, count
);
1919 fbcon_redraw_move(vc
, p
, count
, t
, 0);
1921 fbcon_redraw_move(vc
, p
, t
, b
- t
- count
, t
+ count
);
1922 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
1927 fbcon_redraw(vc
, p
, b
- 1, b
- t
- count
,
1928 -count
* vc
->vc_cols
);
1929 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
1930 scr_memsetw((unsigned short *) (vc
->vc_origin
+
1933 vc
->vc_video_erase_char
,
1934 vc
->vc_size_row
* count
);
1942 static void fbcon_bmove(struct vc_data
*vc
, int sy
, int sx
, int dy
, int dx
,
1943 int height
, int width
)
1945 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1946 struct display
*p
= &fb_display
[vc
->vc_num
];
1948 if (fbcon_is_inactive(vc
, info
))
1951 if (!width
|| !height
)
1954 /* Split blits that cross physical y_wrap case.
1955 * Pathological case involves 4 blits, better to use recursive
1956 * code rather than unrolled case
1958 * Recursive invocations don't need to erase the cursor over and
1959 * over again, so we use fbcon_bmove_rec()
1961 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, height
, width
,
1962 p
->vrows
- p
->yscroll
);
1965 static void fbcon_bmove_rec(struct vc_data
*vc
, struct display
*p
, int sy
, int sx
,
1966 int dy
, int dx
, int height
, int width
, u_int y_break
)
1968 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1969 struct fbcon_ops
*ops
= info
->fbcon_par
;
1972 if (sy
< y_break
&& sy
+ height
> y_break
) {
1974 if (dy
< sy
) { /* Avoid trashing self */
1975 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
1977 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
1978 height
- b
, width
, y_break
);
1980 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
1981 height
- b
, width
, y_break
);
1982 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
1988 if (dy
< y_break
&& dy
+ height
> y_break
) {
1990 if (dy
< sy
) { /* Avoid trashing self */
1991 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
1993 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
1994 height
- b
, width
, y_break
);
1996 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
1997 height
- b
, width
, y_break
);
1998 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
2003 ops
->bmove(vc
, info
, real_y(p
, sy
), sx
, real_y(p
, dy
), dx
,
2007 static __inline__
void updatescrollmode(struct display
*p
,
2008 struct fb_info
*info
,
2011 struct fbcon_ops
*ops
= info
->fbcon_par
;
2012 int fh
= vc
->vc_font
.height
;
2013 int cap
= info
->flags
;
2015 int ypan
= FBCON_SWAP(ops
->rotate
, info
->fix
.ypanstep
,
2016 info
->fix
.xpanstep
);
2017 int ywrap
= FBCON_SWAP(ops
->rotate
, info
->fix
.ywrapstep
, t
);
2018 int yres
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2019 int vyres
= FBCON_SWAP(ops
->rotate
, info
->var
.yres_virtual
,
2020 info
->var
.xres_virtual
);
2021 int good_pan
= (cap
& FBINFO_HWACCEL_YPAN
) &&
2022 divides(ypan
, vc
->vc_font
.height
) && vyres
> yres
;
2023 int good_wrap
= (cap
& FBINFO_HWACCEL_YWRAP
) &&
2024 divides(ywrap
, vc
->vc_font
.height
) &&
2025 divides(vc
->vc_font
.height
, vyres
) &&
2026 divides(vc
->vc_font
.height
, yres
);
2027 int reading_fast
= cap
& FBINFO_READS_FAST
;
2028 int fast_copyarea
= (cap
& FBINFO_HWACCEL_COPYAREA
) &&
2029 !(cap
& FBINFO_HWACCEL_DISABLED
);
2030 int fast_imageblit
= (cap
& FBINFO_HWACCEL_IMAGEBLIT
) &&
2031 !(cap
& FBINFO_HWACCEL_DISABLED
);
2033 p
->vrows
= vyres
/fh
;
2034 if (yres
> (fh
* (vc
->vc_rows
+ 1)))
2035 p
->vrows
-= (yres
- (fh
* vc
->vc_rows
)) / fh
;
2036 if ((yres
% fh
) && (vyres
% fh
< yres
% fh
))
2039 if (good_wrap
|| good_pan
) {
2040 if (reading_fast
|| fast_copyarea
)
2041 p
->scrollmode
= good_wrap
?
2042 SCROLL_WRAP_MOVE
: SCROLL_PAN_MOVE
;
2044 p
->scrollmode
= good_wrap
? SCROLL_REDRAW
:
2047 if (reading_fast
|| (fast_copyarea
&& !fast_imageblit
))
2048 p
->scrollmode
= SCROLL_MOVE
;
2050 p
->scrollmode
= SCROLL_REDRAW
;
2054 static int fbcon_resize(struct vc_data
*vc
, unsigned int width
,
2055 unsigned int height
)
2057 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2058 struct fbcon_ops
*ops
= info
->fbcon_par
;
2059 struct display
*p
= &fb_display
[vc
->vc_num
];
2060 struct fb_var_screeninfo var
= info
->var
;
2061 int x_diff
, y_diff
, virt_w
, virt_h
, virt_fw
, virt_fh
;
2063 virt_w
= FBCON_SWAP(ops
->rotate
, width
, height
);
2064 virt_h
= FBCON_SWAP(ops
->rotate
, height
, width
);
2065 virt_fw
= FBCON_SWAP(ops
->rotate
, vc
->vc_font
.width
,
2066 vc
->vc_font
.height
);
2067 virt_fh
= FBCON_SWAP(ops
->rotate
, vc
->vc_font
.height
,
2069 var
.xres
= virt_w
* virt_fw
;
2070 var
.yres
= virt_h
* virt_fh
;
2071 x_diff
= info
->var
.xres
- var
.xres
;
2072 y_diff
= info
->var
.yres
- var
.yres
;
2073 if (x_diff
< 0 || x_diff
> virt_fw
||
2074 y_diff
< 0 || y_diff
> virt_fh
) {
2075 struct fb_videomode
*mode
;
2077 DPRINTK("attempting resize %ix%i\n", var
.xres
, var
.yres
);
2078 mode
= fb_find_best_mode(&var
, &info
->modelist
);
2081 display_to_var(&var
, p
);
2082 fb_videomode_to_var(&var
, mode
);
2084 if (virt_w
> var
.xres
/virt_fw
|| virt_h
> var
.yres
/virt_fh
)
2087 DPRINTK("resize now %ix%i\n", var
.xres
, var
.yres
);
2088 if (CON_IS_VISIBLE(vc
)) {
2089 var
.activate
= FB_ACTIVATE_NOW
|
2091 fb_set_var(info
, &var
);
2093 var_to_display(p
, &info
->var
, info
);
2094 ops
->var
= info
->var
;
2096 updatescrollmode(p
, info
, vc
);
2100 static int fbcon_switch(struct vc_data
*vc
)
2102 struct fb_info
*info
, *old_info
= NULL
;
2103 struct fbcon_ops
*ops
;
2104 struct display
*p
= &fb_display
[vc
->vc_num
];
2105 struct fb_var_screeninfo var
;
2106 int i
, prev_console
, charcnt
= 256;
2108 info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2109 ops
= info
->fbcon_par
;
2113 fbcon_set_origin(vc
);
2114 softback_top
= softback_curr
= softback_in
= softback_buf
;
2116 fbcon_update_softback(vc
);
2119 if (logo_shown
>= 0) {
2120 struct vc_data
*conp2
= vc_cons
[logo_shown
].d
;
2122 if (conp2
->vc_top
== logo_lines
2123 && conp2
->vc_bottom
== conp2
->vc_rows
)
2125 logo_shown
= FBCON_LOGO_CANSHOW
;
2128 prev_console
= ops
->currcon
;
2129 if (prev_console
!= -1)
2130 old_info
= registered_fb
[con2fb_map
[prev_console
]];
2132 * FIXME: If we have multiple fbdev's loaded, we need to
2133 * update all info->currcon. Perhaps, we can place this
2134 * in a centralized structure, but this might break some
2137 * info->currcon = vc->vc_num;
2139 for (i
= 0; i
< FB_MAX
; i
++) {
2140 if (registered_fb
[i
] != NULL
&& registered_fb
[i
]->fbcon_par
) {
2141 struct fbcon_ops
*o
= registered_fb
[i
]->fbcon_par
;
2143 o
->currcon
= vc
->vc_num
;
2146 memset(&var
, 0, sizeof(struct fb_var_screeninfo
));
2147 display_to_var(&var
, p
);
2148 var
.activate
= FB_ACTIVATE_NOW
;
2151 * make sure we don't unnecessarily trip the memcmp()
2154 info
->var
.activate
= var
.activate
;
2155 var
.yoffset
= info
->var
.yoffset
;
2156 var
.xoffset
= info
->var
.xoffset
;
2157 var
.vmode
= info
->var
.vmode
;
2158 fb_set_var(info
, &var
);
2159 ops
->var
= info
->var
;
2161 if (old_info
!= NULL
&& (old_info
!= info
||
2162 info
->flags
& FBINFO_MISC_ALWAYS_SETPAR
)) {
2163 if (info
->fbops
->fb_set_par
)
2164 info
->fbops
->fb_set_par(info
);
2166 if (old_info
!= info
)
2167 fbcon_del_cursor_timer(old_info
);
2170 fbcon_add_cursor_timer(info
);
2171 set_blitting_type(vc
, info
);
2172 ops
->cursor_reset
= 1;
2174 if (ops
->rotate_font
&& ops
->rotate_font(info
, vc
)) {
2175 ops
->rotate
= FB_ROTATE_UR
;
2176 set_blitting_type(vc
, info
);
2179 vc
->vc_can_do_color
= (fb_get_color_depth(&info
->var
, &info
->fix
)!=1);
2180 vc
->vc_complement_mask
= vc
->vc_can_do_color
? 0x7700 : 0x0800;
2183 charcnt
= FNTCHARCNT(vc
->vc_font
.data
);
2186 vc
->vc_complement_mask
<<= 1;
2188 updatescrollmode(p
, info
, vc
);
2190 switch (p
->scrollmode
) {
2191 case SCROLL_WRAP_MOVE
:
2192 scrollback_phys_max
= p
->vrows
- vc
->vc_rows
;
2194 case SCROLL_PAN_MOVE
:
2195 case SCROLL_PAN_REDRAW
:
2196 scrollback_phys_max
= p
->vrows
- 2 * vc
->vc_rows
;
2197 if (scrollback_phys_max
< 0)
2198 scrollback_phys_max
= 0;
2201 scrollback_phys_max
= 0;
2206 scrollback_current
= 0;
2208 if (!fbcon_is_inactive(vc
, info
)) {
2209 ops
->var
.xoffset
= ops
->var
.yoffset
= p
->yscroll
= 0;
2210 ops
->update_start(info
);
2213 fbcon_set_palette(vc
, color_table
);
2214 fbcon_clear_margins(vc
, 0);
2216 if (logo_shown
== FBCON_LOGO_DRAW
) {
2218 logo_shown
= fg_console
;
2219 /* This is protected above by initmem_freed */
2220 fb_show_logo(info
, ops
->rotate
);
2222 vc
->vc_origin
+ vc
->vc_size_row
* vc
->vc_top
,
2223 vc
->vc_size_row
* (vc
->vc_bottom
-
2230 static void fbcon_generic_blank(struct vc_data
*vc
, struct fb_info
*info
,
2234 unsigned short charmask
= vc
->vc_hi_font_mask
?
2236 unsigned short oldc
;
2238 oldc
= vc
->vc_video_erase_char
;
2239 vc
->vc_video_erase_char
&= charmask
;
2240 fbcon_clear(vc
, 0, 0, vc
->vc_rows
, vc
->vc_cols
);
2241 vc
->vc_video_erase_char
= oldc
;
2245 static int fbcon_blank(struct vc_data
*vc
, int blank
, int mode_switch
)
2247 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2248 struct fbcon_ops
*ops
= info
->fbcon_par
;
2251 struct fb_var_screeninfo var
= info
->var
;
2256 if (info
->fbops
->fb_save_state
)
2257 info
->fbops
->fb_save_state(info
);
2258 var
.activate
= FB_ACTIVATE_NOW
| FB_ACTIVATE_FORCE
;
2259 fb_set_var(info
, &var
);
2261 ops
->var
= info
->var
;
2262 } else if (info
->fbops
->fb_restore_state
)
2263 info
->fbops
->fb_restore_state(info
);
2266 if (!fbcon_is_inactive(vc
, info
)) {
2267 if (ops
->blank_state
!= blank
) {
2268 ops
->blank_state
= blank
;
2269 fbcon_cursor(vc
, blank
? CM_ERASE
: CM_DRAW
);
2270 ops
->cursor_flash
= (!blank
);
2272 if (fb_blank(info
, blank
))
2273 fbcon_generic_blank(vc
, info
, blank
);
2281 fbcon_add_cursor_timer(info
);
2283 fbcon_del_cursor_timer(info
);
2288 static int fbcon_get_font(struct vc_data
*vc
, struct console_font
*font
)
2290 u8
*fontdata
= vc
->vc_font
.data
;
2291 u8
*data
= font
->data
;
2294 font
->width
= vc
->vc_font
.width
;
2295 font
->height
= vc
->vc_font
.height
;
2296 font
->charcount
= vc
->vc_hi_font_mask
? 512 : 256;
2300 if (font
->width
<= 8) {
2301 j
= vc
->vc_font
.height
;
2302 for (i
= 0; i
< font
->charcount
; i
++) {
2303 memcpy(data
, fontdata
, j
);
2304 memset(data
+ j
, 0, 32 - j
);
2308 } else if (font
->width
<= 16) {
2309 j
= vc
->vc_font
.height
* 2;
2310 for (i
= 0; i
< font
->charcount
; i
++) {
2311 memcpy(data
, fontdata
, j
);
2312 memset(data
+ j
, 0, 64 - j
);
2316 } else if (font
->width
<= 24) {
2317 for (i
= 0; i
< font
->charcount
; i
++) {
2318 for (j
= 0; j
< vc
->vc_font
.height
; j
++) {
2319 *data
++ = fontdata
[0];
2320 *data
++ = fontdata
[1];
2321 *data
++ = fontdata
[2];
2322 fontdata
+= sizeof(u32
);
2324 memset(data
, 0, 3 * (32 - j
));
2325 data
+= 3 * (32 - j
);
2328 j
= vc
->vc_font
.height
* 4;
2329 for (i
= 0; i
< font
->charcount
; i
++) {
2330 memcpy(data
, fontdata
, j
);
2331 memset(data
+ j
, 0, 128 - j
);
2339 static int fbcon_do_set_font(struct vc_data
*vc
, int w
, int h
,
2340 const u8
* data
, int userfont
)
2342 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2343 struct fbcon_ops
*ops
= info
->fbcon_par
;
2344 struct display
*p
= &fb_display
[vc
->vc_num
];
2347 char *old_data
= NULL
;
2349 if (CON_IS_VISIBLE(vc
) && softback_lines
)
2350 fbcon_set_origin(vc
);
2352 resize
= (w
!= vc
->vc_font
.width
) || (h
!= vc
->vc_font
.height
);
2354 old_data
= vc
->vc_font
.data
;
2356 cnt
= FNTCHARCNT(data
);
2359 vc
->vc_font
.data
= (void *)(p
->fontdata
= data
);
2360 if ((p
->userfont
= userfont
))
2362 vc
->vc_font
.width
= w
;
2363 vc
->vc_font
.height
= h
;
2364 if (vc
->vc_hi_font_mask
&& cnt
== 256) {
2365 vc
->vc_hi_font_mask
= 0;
2366 if (vc
->vc_can_do_color
) {
2367 vc
->vc_complement_mask
>>= 1;
2368 vc
->vc_s_complement_mask
>>= 1;
2371 /* ++Edmund: reorder the attribute bits */
2372 if (vc
->vc_can_do_color
) {
2373 unsigned short *cp
=
2374 (unsigned short *) vc
->vc_origin
;
2375 int count
= vc
->vc_screenbuf_size
/ 2;
2377 for (; count
> 0; count
--, cp
++) {
2379 scr_writew(((c
& 0xfe00) >> 1) |
2382 c
= vc
->vc_video_erase_char
;
2383 vc
->vc_video_erase_char
=
2384 ((c
& 0xfe00) >> 1) | (c
& 0xff);
2387 } else if (!vc
->vc_hi_font_mask
&& cnt
== 512) {
2388 vc
->vc_hi_font_mask
= 0x100;
2389 if (vc
->vc_can_do_color
) {
2390 vc
->vc_complement_mask
<<= 1;
2391 vc
->vc_s_complement_mask
<<= 1;
2394 /* ++Edmund: reorder the attribute bits */
2396 unsigned short *cp
=
2397 (unsigned short *) vc
->vc_origin
;
2398 int count
= vc
->vc_screenbuf_size
/ 2;
2400 for (; count
> 0; count
--, cp
++) {
2401 unsigned short newc
;
2403 if (vc
->vc_can_do_color
)
2405 ((c
& 0xff00) << 1) | (c
&
2409 scr_writew(newc
, cp
);
2411 c
= vc
->vc_video_erase_char
;
2412 if (vc
->vc_can_do_color
) {
2413 vc
->vc_video_erase_char
=
2414 ((c
& 0xff00) << 1) | (c
& 0xff);
2417 vc
->vc_video_erase_char
= c
& ~0x100;
2425 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
2426 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2429 vc_resize(vc
, cols
, rows
);
2430 if (CON_IS_VISIBLE(vc
) && softback_buf
)
2431 fbcon_update_softback(vc
);
2432 } else if (CON_IS_VISIBLE(vc
)
2433 && vc
->vc_mode
== KD_TEXT
) {
2434 fbcon_clear_margins(vc
, 0);
2438 if (old_data
&& (--REFCOUNT(old_data
) == 0))
2439 kfree(old_data
- FONT_EXTRA_WORDS
* sizeof(int));
2443 static int fbcon_copy_font(struct vc_data
*vc
, int con
)
2445 struct display
*od
= &fb_display
[con
];
2446 struct console_font
*f
= &vc
->vc_font
;
2448 if (od
->fontdata
== f
->data
)
2449 return 0; /* already the same font... */
2450 return fbcon_do_set_font(vc
, f
->width
, f
->height
, od
->fontdata
, od
->userfont
);
2454 * User asked to set font; we are guaranteed that
2455 * a) width and height are in range 1..32
2456 * b) charcount does not exceed 512
2457 * but lets not assume that, since someone might someday want to use larger
2458 * fonts. And charcount of 512 is small for unicode support.
2460 * However, user space gives the font in 32 rows , regardless of
2461 * actual font height. So a new API is needed if support for larger fonts
2462 * is ever implemented.
2465 static int fbcon_set_font(struct vc_data
*vc
, struct console_font
*font
, unsigned flags
)
2467 unsigned charcount
= font
->charcount
;
2468 int w
= font
->width
;
2469 int h
= font
->height
;
2472 u8
*new_data
, *data
= font
->data
;
2473 int pitch
= (font
->width
+7) >> 3;
2475 /* Is there a reason why fbconsole couldn't handle any charcount >256?
2476 * If not this check should be changed to charcount < 256 */
2477 if (charcount
!= 256 && charcount
!= 512)
2480 size
= h
* pitch
* charcount
;
2482 new_data
= kmalloc(FONT_EXTRA_WORDS
* sizeof(int) + size
, GFP_USER
);
2487 new_data
+= FONT_EXTRA_WORDS
* sizeof(int);
2488 FNTSIZE(new_data
) = size
;
2489 FNTCHARCNT(new_data
) = charcount
;
2490 REFCOUNT(new_data
) = 0; /* usage counter */
2491 for (i
=0; i
< charcount
; i
++) {
2492 memcpy(new_data
+ i
*h
*pitch
, data
+ i
*32*pitch
, h
*pitch
);
2495 /* Since linux has a nice crc32 function use it for counting font
2497 csum
= crc32(0, new_data
, size
);
2499 FNTSUM(new_data
) = csum
;
2500 /* Check if the same font is on some other console already */
2501 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2502 struct vc_data
*tmp
= vc_cons
[i
].d
;
2504 if (fb_display
[i
].userfont
&&
2505 fb_display
[i
].fontdata
&&
2506 FNTSUM(fb_display
[i
].fontdata
) == csum
&&
2507 FNTSIZE(fb_display
[i
].fontdata
) == size
&&
2508 tmp
->vc_font
.width
== w
&&
2509 !memcmp(fb_display
[i
].fontdata
, new_data
, size
)) {
2510 kfree(new_data
- FONT_EXTRA_WORDS
* sizeof(int));
2511 new_data
= (u8
*)fb_display
[i
].fontdata
;
2515 return fbcon_do_set_font(vc
, font
->width
, font
->height
, new_data
, 1);
2518 static int fbcon_set_def_font(struct vc_data
*vc
, struct console_font
*font
, char *name
)
2520 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2521 const struct font_desc
*f
;
2524 f
= get_default_font(info
->var
.xres
, info
->var
.yres
);
2525 else if (!(f
= find_font(name
)))
2528 font
->width
= f
->width
;
2529 font
->height
= f
->height
;
2530 return fbcon_do_set_font(vc
, f
->width
, f
->height
, f
->data
, 0);
2533 static u16 palette_red
[16];
2534 static u16 palette_green
[16];
2535 static u16 palette_blue
[16];
2537 static struct fb_cmap palette_cmap
= {
2538 0, 16, palette_red
, palette_green
, palette_blue
, NULL
2541 static int fbcon_set_palette(struct vc_data
*vc
, unsigned char *table
)
2543 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2547 if (fbcon_is_inactive(vc
, info
))
2550 if (!CON_IS_VISIBLE(vc
))
2553 depth
= fb_get_color_depth(&info
->var
, &info
->fix
);
2555 for (i
= j
= 0; i
< 16; i
++) {
2557 val
= vc
->vc_palette
[j
++];
2558 palette_red
[k
] = (val
<< 8) | val
;
2559 val
= vc
->vc_palette
[j
++];
2560 palette_green
[k
] = (val
<< 8) | val
;
2561 val
= vc
->vc_palette
[j
++];
2562 palette_blue
[k
] = (val
<< 8) | val
;
2564 palette_cmap
.len
= 16;
2565 palette_cmap
.start
= 0;
2567 * If framebuffer is capable of less than 16 colors,
2568 * use default palette of fbcon.
2571 fb_copy_cmap(fb_default_cmap(1 << depth
), &palette_cmap
);
2573 return fb_set_cmap(&palette_cmap
, info
);
2576 static u16
*fbcon_screen_pos(struct vc_data
*vc
, int offset
)
2581 if (vc
->vc_num
!= fg_console
|| !softback_lines
)
2582 return (u16
*) (vc
->vc_origin
+ offset
);
2583 line
= offset
/ vc
->vc_size_row
;
2584 if (line
>= softback_lines
)
2585 return (u16
*) (vc
->vc_origin
+ offset
-
2586 softback_lines
* vc
->vc_size_row
);
2587 p
= softback_curr
+ offset
;
2588 if (p
>= softback_end
)
2589 p
+= softback_buf
- softback_end
;
2593 static unsigned long fbcon_getxy(struct vc_data
*vc
, unsigned long pos
,
2599 if (pos
>= vc
->vc_origin
&& pos
< vc
->vc_scr_end
) {
2600 unsigned long offset
= (pos
- vc
->vc_origin
) / 2;
2602 x
= offset
% vc
->vc_cols
;
2603 y
= offset
/ vc
->vc_cols
;
2604 if (vc
->vc_num
== fg_console
)
2605 y
+= softback_lines
;
2606 ret
= pos
+ (vc
->vc_cols
- x
) * 2;
2607 } else if (vc
->vc_num
== fg_console
&& softback_lines
) {
2608 unsigned long offset
= pos
- softback_curr
;
2610 if (pos
< softback_curr
)
2611 offset
+= softback_end
- softback_buf
;
2613 x
= offset
% vc
->vc_cols
;
2614 y
= offset
/ vc
->vc_cols
;
2615 ret
= pos
+ (vc
->vc_cols
- x
) * 2;
2616 if (ret
== softback_end
)
2618 if (ret
== softback_in
)
2619 ret
= vc
->vc_origin
;
2621 /* Should not happen */
2623 ret
= vc
->vc_origin
;
2632 /* As we might be inside of softback, we may work with non-contiguous buffer,
2633 that's why we have to use a separate routine. */
2634 static void fbcon_invert_region(struct vc_data
*vc
, u16
* p
, int cnt
)
2637 u16 a
= scr_readw(p
);
2638 if (!vc
->vc_can_do_color
)
2640 else if (vc
->vc_hi_font_mask
== 0x100)
2641 a
= ((a
) & 0x11ff) | (((a
) & 0xe000) >> 4) |
2642 (((a
) & 0x0e00) << 4);
2644 a
= ((a
) & 0x88ff) | (((a
) & 0x7000) >> 4) |
2645 (((a
) & 0x0700) << 4);
2647 if (p
== (u16
*) softback_end
)
2648 p
= (u16
*) softback_buf
;
2649 if (p
== (u16
*) softback_in
)
2650 p
= (u16
*) vc
->vc_origin
;
2654 static int fbcon_scrolldelta(struct vc_data
*vc
, int lines
)
2656 struct fb_info
*info
= registered_fb
[con2fb_map
[fg_console
]];
2657 struct fbcon_ops
*ops
= info
->fbcon_par
;
2658 struct display
*p
= &fb_display
[fg_console
];
2659 int offset
, limit
, scrollback_old
;
2662 if (vc
->vc_num
!= fg_console
)
2664 if (vc
->vc_mode
!= KD_TEXT
|| !lines
)
2666 if (logo_shown
>= 0) {
2667 struct vc_data
*conp2
= vc_cons
[logo_shown
].d
;
2669 if (conp2
->vc_top
== logo_lines
2670 && conp2
->vc_bottom
== conp2
->vc_rows
)
2672 if (logo_shown
== vc
->vc_num
) {
2678 logo_lines
* vc
->vc_size_row
;
2679 for (i
= 0; i
< logo_lines
; i
++) {
2680 if (p
== softback_top
)
2682 if (p
== softback_buf
)
2684 p
-= vc
->vc_size_row
;
2685 q
-= vc
->vc_size_row
;
2686 scr_memcpyw((u16
*) q
, (u16
*) p
,
2689 softback_in
= softback_curr
= p
;
2690 update_region(vc
, vc
->vc_origin
,
2691 logo_lines
* vc
->vc_cols
);
2693 logo_shown
= FBCON_LOGO_CANSHOW
;
2695 fbcon_cursor(vc
, CM_ERASE
| CM_SOFTBACK
);
2696 fbcon_redraw_softback(vc
, p
, lines
);
2697 fbcon_cursor(vc
, CM_DRAW
| CM_SOFTBACK
);
2701 if (!scrollback_phys_max
)
2704 scrollback_old
= scrollback_current
;
2705 scrollback_current
-= lines
;
2706 if (scrollback_current
< 0)
2707 scrollback_current
= 0;
2708 else if (scrollback_current
> scrollback_max
)
2709 scrollback_current
= scrollback_max
;
2710 if (scrollback_current
== scrollback_old
)
2713 if (fbcon_is_inactive(vc
, info
))
2716 fbcon_cursor(vc
, CM_ERASE
);
2718 offset
= p
->yscroll
- scrollback_current
;
2720 switch (p
->scrollmode
) {
2721 case SCROLL_WRAP_MOVE
:
2722 info
->var
.vmode
|= FB_VMODE_YWRAP
;
2724 case SCROLL_PAN_MOVE
:
2725 case SCROLL_PAN_REDRAW
:
2726 limit
-= vc
->vc_rows
;
2727 info
->var
.vmode
&= ~FB_VMODE_YWRAP
;
2732 else if (offset
>= limit
)
2735 ops
->var
.xoffset
= 0;
2736 ops
->var
.yoffset
= offset
* vc
->vc_font
.height
;
2737 ops
->update_start(info
);
2739 if (!scrollback_current
)
2740 fbcon_cursor(vc
, CM_DRAW
);
2744 static int fbcon_set_origin(struct vc_data
*vc
)
2747 fbcon_scrolldelta(vc
, softback_lines
);
2751 static void fbcon_suspended(struct fb_info
*info
)
2753 struct vc_data
*vc
= NULL
;
2754 struct fbcon_ops
*ops
= info
->fbcon_par
;
2756 if (!ops
|| ops
->currcon
< 0)
2758 vc
= vc_cons
[ops
->currcon
].d
;
2760 /* Clear cursor, restore saved data */
2761 fbcon_cursor(vc
, CM_ERASE
);
2764 static void fbcon_resumed(struct fb_info
*info
)
2767 struct fbcon_ops
*ops
= info
->fbcon_par
;
2769 if (!ops
|| ops
->currcon
< 0)
2771 vc
= vc_cons
[ops
->currcon
].d
;
2776 static void fbcon_modechanged(struct fb_info
*info
)
2778 struct fbcon_ops
*ops
= info
->fbcon_par
;
2783 if (!ops
|| ops
->currcon
< 0)
2785 vc
= vc_cons
[ops
->currcon
].d
;
2786 if (vc
->vc_mode
!= KD_TEXT
||
2787 registered_fb
[con2fb_map
[ops
->currcon
]] != info
)
2790 p
= &fb_display
[vc
->vc_num
];
2791 set_blitting_type(vc
, info
);
2793 if (CON_IS_VISIBLE(vc
)) {
2794 var_to_display(p
, &info
->var
, info
);
2795 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
2796 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2797 cols
/= vc
->vc_font
.width
;
2798 rows
/= vc
->vc_font
.height
;
2799 vc_resize(vc
, cols
, rows
);
2800 updatescrollmode(p
, info
, vc
);
2802 scrollback_current
= 0;
2804 if (!fbcon_is_inactive(vc
, info
)) {
2805 ops
->var
.xoffset
= ops
->var
.yoffset
= p
->yscroll
= 0;
2806 ops
->update_start(info
);
2809 fbcon_set_palette(vc
, color_table
);
2812 fbcon_update_softback(vc
);
2816 static void fbcon_set_all_vcs(struct fb_info
*info
)
2818 struct fbcon_ops
*ops
= info
->fbcon_par
;
2823 if (!ops
|| ops
->currcon
< 0)
2826 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2828 if (!vc
|| vc
->vc_mode
!= KD_TEXT
||
2829 registered_fb
[con2fb_map
[i
]] != info
)
2832 p
= &fb_display
[vc
->vc_num
];
2833 set_blitting_type(vc
, info
);
2834 var_to_display(p
, &info
->var
, info
);
2835 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
2836 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2837 cols
/= vc
->vc_font
.width
;
2838 rows
/= vc
->vc_font
.height
;
2839 vc_resize(vc
, cols
, rows
);
2841 if (CON_IS_VISIBLE(vc
)) {
2842 updatescrollmode(p
, info
, vc
);
2844 scrollback_current
= 0;
2846 if (!fbcon_is_inactive(vc
, info
)) {
2847 ops
->var
.xoffset
= ops
->var
.yoffset
=
2849 ops
->update_start(info
);
2852 fbcon_set_palette(vc
, color_table
);
2855 fbcon_update_softback(vc
);
2859 ops
->p
= &fb_display
[ops
->currcon
];
2862 static int fbcon_mode_deleted(struct fb_info
*info
,
2863 struct fb_videomode
*mode
)
2865 struct fb_info
*fb_info
;
2867 int i
, j
, found
= 0;
2869 /* before deletion, ensure that mode is not in use */
2870 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2874 fb_info
= registered_fb
[j
];
2875 if (fb_info
!= info
)
2880 if (fb_mode_is_equal(p
->mode
, mode
)) {
2888 static int fbcon_fb_unregistered(int idx
)
2892 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2893 if (con2fb_map
[i
] == idx
)
2897 if (idx
== info_idx
) {
2900 for (i
= 0; i
< FB_MAX
; i
++) {
2901 if (registered_fb
[i
] != NULL
) {
2908 if (info_idx
!= -1) {
2909 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2910 if (con2fb_map
[i
] == -1)
2911 con2fb_map
[i
] = info_idx
;
2915 if (!num_registered_fb
)
2916 unregister_con_driver(&fb_con
);
2921 static int fbcon_fb_registered(int idx
)
2925 if (info_idx
== -1) {
2926 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2927 if (con2fb_map_boot
[i
] == idx
) {
2934 ret
= fbcon_takeover(1);
2936 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2937 if (con2fb_map_boot
[i
] == idx
&&
2938 con2fb_map
[i
] == -1)
2939 set_con2fb_map(i
, idx
, 0);
2946 static void fbcon_fb_blanked(struct fb_info
*info
, int blank
)
2948 struct fbcon_ops
*ops
= info
->fbcon_par
;
2951 if (!ops
|| ops
->currcon
< 0)
2954 vc
= vc_cons
[ops
->currcon
].d
;
2955 if (vc
->vc_mode
!= KD_TEXT
||
2956 registered_fb
[con2fb_map
[ops
->currcon
]] != info
)
2959 if (CON_IS_VISIBLE(vc
)) {
2963 do_unblank_screen(0);
2965 ops
->blank_state
= blank
;
2968 static void fbcon_new_modelist(struct fb_info
*info
)
2972 struct fb_var_screeninfo var
;
2973 struct fb_videomode
*mode
;
2975 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2976 if (registered_fb
[con2fb_map
[i
]] != info
)
2978 if (!fb_display
[i
].mode
)
2981 display_to_var(&var
, &fb_display
[i
]);
2982 mode
= fb_find_nearest_mode(fb_display
[i
].mode
,
2984 fb_videomode_to_var(&var
, mode
);
2987 fbcon_set_disp(info
, &var
, vc
);
2989 fbcon_preset_disp(info
, &var
, i
);
2994 static int fbcon_event_notify(struct notifier_block
*self
,
2995 unsigned long action
, void *data
)
2997 struct fb_event
*event
= data
;
2998 struct fb_info
*info
= event
->info
;
2999 struct fb_videomode
*mode
;
3000 struct fb_con2fbmap
*con2fb
;
3004 * ignore all events except driver registration and deregistration
3005 * if fbcon is not active
3007 if (fbcon_has_exited
&& !(action
== FB_EVENT_FB_REGISTERED
||
3008 action
== FB_EVENT_FB_UNREGISTERED
))
3012 case FB_EVENT_SUSPEND
:
3013 fbcon_suspended(info
);
3015 case FB_EVENT_RESUME
:
3016 fbcon_resumed(info
);
3018 case FB_EVENT_MODE_CHANGE
:
3019 fbcon_modechanged(info
);
3021 case FB_EVENT_MODE_CHANGE_ALL
:
3022 fbcon_set_all_vcs(info
);
3024 case FB_EVENT_MODE_DELETE
:
3026 ret
= fbcon_mode_deleted(info
, mode
);
3028 case FB_EVENT_FB_REGISTERED
:
3029 ret
= fbcon_fb_registered(info
->node
);
3031 case FB_EVENT_FB_UNREGISTERED
:
3032 ret
= fbcon_fb_unregistered(info
->node
);
3034 case FB_EVENT_SET_CONSOLE_MAP
:
3035 con2fb
= event
->data
;
3036 ret
= set_con2fb_map(con2fb
->console
- 1,
3037 con2fb
->framebuffer
, 1);
3039 case FB_EVENT_GET_CONSOLE_MAP
:
3040 con2fb
= event
->data
;
3041 con2fb
->framebuffer
= con2fb_map
[con2fb
->console
- 1];
3043 case FB_EVENT_BLANK
:
3044 fbcon_fb_blanked(info
, *(int *)event
->data
);
3046 case FB_EVENT_NEW_MODELIST
:
3047 fbcon_new_modelist(info
);
3056 * The console `switch' structure for the frame buffer based console
3059 static const struct consw fb_con
= {
3060 .owner
= THIS_MODULE
,
3061 .con_startup
= fbcon_startup
,
3062 .con_init
= fbcon_init
,
3063 .con_deinit
= fbcon_deinit
,
3064 .con_clear
= fbcon_clear
,
3065 .con_putc
= fbcon_putc
,
3066 .con_putcs
= fbcon_putcs
,
3067 .con_cursor
= fbcon_cursor
,
3068 .con_scroll
= fbcon_scroll
,
3069 .con_bmove
= fbcon_bmove
,
3070 .con_switch
= fbcon_switch
,
3071 .con_blank
= fbcon_blank
,
3072 .con_font_set
= fbcon_set_font
,
3073 .con_font_get
= fbcon_get_font
,
3074 .con_font_default
= fbcon_set_def_font
,
3075 .con_font_copy
= fbcon_copy_font
,
3076 .con_set_palette
= fbcon_set_palette
,
3077 .con_scrolldelta
= fbcon_scrolldelta
,
3078 .con_set_origin
= fbcon_set_origin
,
3079 .con_invert_region
= fbcon_invert_region
,
3080 .con_screen_pos
= fbcon_screen_pos
,
3081 .con_getxy
= fbcon_getxy
,
3082 .con_resize
= fbcon_resize
,
3085 static struct notifier_block fbcon_event_notifier
= {
3086 .notifier_call
= fbcon_event_notify
,
3089 static ssize_t
store_rotate(struct class_device
*class_device
,
3090 const char *buf
, size_t count
)
3092 struct fb_info
*info
;
3096 if (fbcon_has_exited
)
3099 acquire_console_sem();
3100 idx
= con2fb_map
[fg_console
];
3102 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3105 info
= registered_fb
[idx
];
3106 rotate
= simple_strtoul(buf
, last
, 0);
3107 fbcon_rotate(info
, rotate
);
3109 release_console_sem();
3113 static ssize_t
store_rotate_all(struct class_device
*class_device
,
3114 const char *buf
, size_t count
)
3116 struct fb_info
*info
;
3120 if (fbcon_has_exited
)
3123 acquire_console_sem();
3124 idx
= con2fb_map
[fg_console
];
3126 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3129 info
= registered_fb
[idx
];
3130 rotate
= simple_strtoul(buf
, last
, 0);
3131 fbcon_rotate_all(info
, rotate
);
3133 release_console_sem();
3137 static ssize_t
show_rotate(struct class_device
*class_device
, char *buf
)
3139 struct fb_info
*info
;
3140 int rotate
= 0, idx
;
3142 if (fbcon_has_exited
)
3145 acquire_console_sem();
3146 idx
= con2fb_map
[fg_console
];
3148 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3151 info
= registered_fb
[idx
];
3152 rotate
= fbcon_get_rotate(info
);
3154 release_console_sem();
3155 return snprintf(buf
, PAGE_SIZE
, "%d\n", rotate
);
3158 static struct class_device_attribute class_device_attrs
[] = {
3159 __ATTR(rotate
, S_IRUGO
|S_IWUSR
, show_rotate
, store_rotate
),
3160 __ATTR(rotate_all
, S_IWUSR
, NULL
, store_rotate_all
),
3163 static int fbcon_init_class_device(void)
3167 for (i
= 0; i
< ARRAY_SIZE(class_device_attrs
); i
++)
3168 class_device_create_file(fbcon_class_device
,
3169 &class_device_attrs
[i
]);
3173 static void fbcon_start(void)
3175 if (num_registered_fb
) {
3178 acquire_console_sem();
3180 for (i
= 0; i
< FB_MAX
; i
++) {
3181 if (registered_fb
[i
] != NULL
) {
3187 release_console_sem();
3192 static void fbcon_exit(void)
3194 struct fb_info
*info
;
3197 if (fbcon_has_exited
)
3201 free_irq(IRQ_AUTO_4
, fbcon_vbl_handler
);
3204 if (MACH_IS_MAC
&& vbl_detected
)
3205 free_irq(IRQ_MAC_VBL
, fbcon_vbl_handler
);
3208 kfree((void *)softback_buf
);
3211 for (i
= 0; i
< FB_MAX
; i
++) {
3213 info
= registered_fb
[i
];
3218 for (j
= first_fb_vc
; j
<= last_fb_vc
; j
++) {
3219 if (con2fb_map
[j
] == i
)
3224 if (info
->fbops
->fb_release
)
3225 info
->fbops
->fb_release(info
, 0);
3226 module_put(info
->fbops
->owner
);
3228 if (info
->fbcon_par
) {
3229 fbcon_del_cursor_timer(info
);
3230 kfree(info
->fbcon_par
);
3231 info
->fbcon_par
= NULL
;
3234 if (info
->queue
.func
== fb_flashcursor
)
3235 info
->queue
.func
= NULL
;
3239 fbcon_has_exited
= 1;
3242 static int __init
fb_console_init(void)
3246 acquire_console_sem();
3247 fb_register_client(&fbcon_event_notifier
);
3248 fbcon_class_device
=
3249 class_device_create(fb_class
, NULL
, MKDEV(0, 0), NULL
, "fbcon");
3251 if (IS_ERR(fbcon_class_device
)) {
3252 printk(KERN_WARNING
"Unable to create class_device "
3253 "for fbcon; errno = %ld\n",
3254 PTR_ERR(fbcon_class_device
));
3255 fbcon_class_device
= NULL
;
3257 fbcon_init_class_device();
3259 for (i
= 0; i
< MAX_NR_CONSOLES
; i
++)
3262 release_console_sem();
3267 module_init(fb_console_init
);
3271 static void __exit
fbcon_deinit_class_device(void)
3275 for (i
= 0; i
< ARRAY_SIZE(class_device_attrs
); i
++)
3276 class_device_remove_file(fbcon_class_device
,
3277 &class_device_attrs
[i
]);
3280 static void __exit
fb_console_exit(void)
3282 acquire_console_sem();
3283 fb_unregister_client(&fbcon_event_notifier
);
3284 fbcon_deinit_class_device();
3285 class_device_destroy(fb_class
, MKDEV(0, 0));
3287 release_console_sem();
3288 unregister_con_driver(&fb_con
);
3291 module_exit(fb_console_exit
);
3295 MODULE_LICENSE("GPL");