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>
64 #include <linux/kernel.h>
65 #include <linux/delay.h> /* MSch: for IRQ probe */
66 #include <linux/console.h>
67 #include <linux/string.h>
69 #include <linux/slab.h>
71 #include <linux/vt_kern.h>
72 #include <linux/selection.h>
73 #include <linux/font.h>
74 #include <linux/smp.h>
75 #include <linux/init.h>
76 #include <linux/interrupt.h>
77 #include <linux/crc32.h> /* For counting font checksums */
80 #include <asm/system.h>
82 #include <asm/atariints.h>
85 #include <asm/macints.h>
87 #if defined(__mc68000__)
88 #include <asm/machdep.h>
89 #include <asm/setup.h>
95 # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args)
97 # define DPRINTK(fmt, args...)
101 FBCON_LOGO_CANSHOW
= -1, /* the logo can be shown */
102 FBCON_LOGO_DRAW
= -2, /* draw the logo to a console */
103 FBCON_LOGO_DONTSHOW
= -3 /* do not show the logo */
106 static struct display fb_display
[MAX_NR_CONSOLES
];
108 static signed char con2fb_map
[MAX_NR_CONSOLES
];
109 static signed char con2fb_map_boot
[MAX_NR_CONSOLES
];
111 static int logo_lines
;
112 /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO
114 static int logo_shown
= FBCON_LOGO_CANSHOW
;
115 /* Software scrollback */
116 static int fbcon_softback_size
= 32768;
117 static unsigned long softback_buf
, softback_curr
;
118 static unsigned long softback_in
;
119 static unsigned long softback_top
, softback_end
;
120 static int softback_lines
;
121 /* console mappings */
122 static int first_fb_vc
;
123 static int last_fb_vc
= MAX_NR_CONSOLES
- 1;
124 static int fbcon_is_default
= 1;
125 static int fbcon_has_exited
;
126 static int primary_device
= -1;
128 #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
129 static int map_override
;
131 static inline void fbcon_map_override(void)
136 static inline void fbcon_map_override(void)
139 #endif /* CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY */
142 static char fontname
[40];
144 /* current fb_info */
145 static int info_idx
= -1;
147 /* console rotation */
148 static int initial_rotation
;
149 static int fbcon_has_sysfs
;
151 static const struct consw fb_con
;
153 #define CM_SOFTBACK (8)
155 #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row)
157 static int fbcon_set_origin(struct vc_data
*);
159 #define CURSOR_DRAW_DELAY (1)
161 /* # VBL ints between cursor state changes */
162 #define ATARI_CURSOR_BLINK_RATE (42)
163 #define MAC_CURSOR_BLINK_RATE (32)
164 #define DEFAULT_CURSOR_BLINK_RATE (20)
166 static int vbl_cursor_cnt
;
167 static int fbcon_cursor_noblink
;
169 #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1)
172 * Interface used by the world
175 static const char *fbcon_startup(void);
176 static void fbcon_init(struct vc_data
*vc
, int init
);
177 static void fbcon_deinit(struct vc_data
*vc
);
178 static void fbcon_clear(struct vc_data
*vc
, int sy
, int sx
, int height
,
180 static void fbcon_putc(struct vc_data
*vc
, int c
, int ypos
, int xpos
);
181 static void fbcon_putcs(struct vc_data
*vc
, const unsigned short *s
,
182 int count
, int ypos
, int xpos
);
183 static void fbcon_clear_margins(struct vc_data
*vc
, int bottom_only
);
184 static void fbcon_cursor(struct vc_data
*vc
, int mode
);
185 static int fbcon_scroll(struct vc_data
*vc
, int t
, int b
, int dir
,
187 static void fbcon_bmove(struct vc_data
*vc
, int sy
, int sx
, int dy
, int dx
,
188 int height
, int width
);
189 static int fbcon_switch(struct vc_data
*vc
);
190 static int fbcon_blank(struct vc_data
*vc
, int blank
, int mode_switch
);
191 static int fbcon_set_palette(struct vc_data
*vc
, unsigned char *table
);
192 static int fbcon_scrolldelta(struct vc_data
*vc
, int lines
);
197 static __inline__
void ywrap_up(struct vc_data
*vc
, int count
);
198 static __inline__
void ywrap_down(struct vc_data
*vc
, int count
);
199 static __inline__
void ypan_up(struct vc_data
*vc
, int count
);
200 static __inline__
void ypan_down(struct vc_data
*vc
, int count
);
201 static void fbcon_bmove_rec(struct vc_data
*vc
, struct display
*p
, int sy
, int sx
,
202 int dy
, int dx
, int height
, int width
, u_int y_break
);
203 static void fbcon_set_disp(struct fb_info
*info
, struct fb_var_screeninfo
*var
,
205 static void fbcon_redraw_move(struct vc_data
*vc
, struct display
*p
,
206 int line
, int count
, int dy
);
207 static void fbcon_modechanged(struct fb_info
*info
);
208 static void fbcon_set_all_vcs(struct fb_info
*info
);
209 static void fbcon_start(void);
210 static void fbcon_exit(void);
211 static struct device
*fbcon_device
;
215 * On the Macintoy, there may or may not be a working VBL int. We need to probe
217 static int vbl_detected
;
219 static irqreturn_t
fb_vbl_detect(int irq
, void *dummy
)
226 #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION
227 static inline void fbcon_set_rotation(struct fb_info
*info
)
229 struct fbcon_ops
*ops
= info
->fbcon_par
;
231 if (!(info
->flags
& FBINFO_MISC_TILEBLITTING
) &&
232 ops
->p
->con_rotate
< 4)
233 ops
->rotate
= ops
->p
->con_rotate
;
238 static void fbcon_rotate(struct fb_info
*info
, u32 rotate
)
240 struct fbcon_ops
*ops
= info
->fbcon_par
;
241 struct fb_info
*fb_info
;
243 if (!ops
|| ops
->currcon
== -1)
246 fb_info
= registered_fb
[con2fb_map
[ops
->currcon
]];
248 if (info
== fb_info
) {
249 struct display
*p
= &fb_display
[ops
->currcon
];
252 p
->con_rotate
= rotate
;
256 fbcon_modechanged(info
);
260 static void fbcon_rotate_all(struct fb_info
*info
, u32 rotate
)
262 struct fbcon_ops
*ops
= info
->fbcon_par
;
267 if (!ops
|| ops
->currcon
< 0 || rotate
> 3)
270 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
272 if (!vc
|| vc
->vc_mode
!= KD_TEXT
||
273 registered_fb
[con2fb_map
[i
]] != info
)
276 p
= &fb_display
[vc
->vc_num
];
277 p
->con_rotate
= rotate
;
280 fbcon_set_all_vcs(info
);
283 static inline void fbcon_set_rotation(struct fb_info
*info
)
285 struct fbcon_ops
*ops
= info
->fbcon_par
;
287 ops
->rotate
= FB_ROTATE_UR
;
290 static void fbcon_rotate(struct fb_info
*info
, u32 rotate
)
295 static void fbcon_rotate_all(struct fb_info
*info
, u32 rotate
)
299 #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */
301 static int fbcon_get_rotate(struct fb_info
*info
)
303 struct fbcon_ops
*ops
= info
->fbcon_par
;
305 return (ops
) ? ops
->rotate
: 0;
308 static inline int fbcon_is_inactive(struct vc_data
*vc
, struct fb_info
*info
)
310 struct fbcon_ops
*ops
= info
->fbcon_par
;
312 return (info
->state
!= FBINFO_STATE_RUNNING
||
313 vc
->vc_mode
!= KD_TEXT
|| ops
->graphics
);
316 static inline int get_color(struct vc_data
*vc
, struct fb_info
*info
,
319 int depth
= fb_get_color_depth(&info
->var
, &info
->fix
);
322 if (console_blanked
) {
323 unsigned short charmask
= vc
->vc_hi_font_mask
? 0x1ff : 0xff;
325 c
= vc
->vc_video_erase_char
& charmask
;
329 color
= (is_fg
) ? attr_fgcol((vc
->vc_hi_font_mask
) ? 9 : 8, c
)
330 : attr_bgcol((vc
->vc_hi_font_mask
) ? 13 : 12, c
);
335 int col
= mono_col(info
);
337 int fg
= (info
->fix
.visual
!= FB_VISUAL_MONO01
) ? col
: 0;
338 int bg
= (info
->fix
.visual
!= FB_VISUAL_MONO01
) ? 0 : col
;
343 color
= (is_fg
) ? fg
: bg
;
348 * Scale down 16-colors to 4 colors. Default 4-color palette
349 * is grayscale. However, simply dividing the values by 4
350 * will not work, as colors 1, 2 and 3 will be scaled-down
351 * to zero rendering them invisible. So empirically convert
352 * colors to a sane 4-level grayscale.
356 color
= 0; /* black */
359 color
= 2; /* white */
362 color
= 1; /* gray */
365 color
= 3; /* intense white */
371 * Last 8 entries of default 16-color palette is a more intense
372 * version of the first 8 (i.e., same chrominance, different
383 static void fbcon_update_softback(struct vc_data
*vc
)
385 int l
= fbcon_softback_size
/ vc
->vc_size_row
;
388 softback_end
= softback_buf
+ l
* vc
->vc_size_row
;
390 /* Smaller scrollback makes no sense, and 0 would screw
391 the operation totally */
395 static void fb_flashcursor(struct work_struct
*work
)
397 struct fb_info
*info
= container_of(work
, struct fb_info
, queue
);
398 struct fbcon_ops
*ops
= info
->fbcon_par
;
400 struct vc_data
*vc
= NULL
;
404 acquire_console_sem();
405 if (ops
&& ops
->currcon
!= -1)
406 vc
= vc_cons
[ops
->currcon
].d
;
408 if (!vc
|| !CON_IS_VISIBLE(vc
) ||
409 registered_fb
[con2fb_map
[vc
->vc_num
]] != info
||
411 release_console_sem();
415 p
= &fb_display
[vc
->vc_num
];
416 c
= scr_readw((u16
*) vc
->vc_pos
);
417 mode
= (!ops
->cursor_flash
|| ops
->cursor_state
.enable
) ?
419 ops
->cursor(vc
, info
, mode
, softback_lines
, get_color(vc
, info
, c
, 1),
420 get_color(vc
, info
, c
, 0));
421 release_console_sem();
424 #if defined(CONFIG_ATARI) || defined(CONFIG_MAC)
425 static int cursor_blink_rate
;
426 static irqreturn_t
fb_vbl_handler(int irq
, void *dev_id
)
428 struct fb_info
*info
= dev_id
;
430 if (vbl_cursor_cnt
&& --vbl_cursor_cnt
== 0) {
431 schedule_work(&info
->queue
);
432 vbl_cursor_cnt
= cursor_blink_rate
;
438 static void cursor_timer_handler(unsigned long dev_addr
)
440 struct fb_info
*info
= (struct fb_info
*) dev_addr
;
441 struct fbcon_ops
*ops
= info
->fbcon_par
;
443 schedule_work(&info
->queue
);
444 mod_timer(&ops
->cursor_timer
, jiffies
+ HZ
/5);
447 static void fbcon_add_cursor_timer(struct fb_info
*info
)
449 struct fbcon_ops
*ops
= info
->fbcon_par
;
451 if ((!info
->queue
.func
|| info
->queue
.func
== fb_flashcursor
) &&
452 !(ops
->flags
& FBCON_FLAGS_CURSOR_TIMER
) &&
453 !fbcon_cursor_noblink
) {
454 if (!info
->queue
.func
)
455 INIT_WORK(&info
->queue
, fb_flashcursor
);
457 init_timer(&ops
->cursor_timer
);
458 ops
->cursor_timer
.function
= cursor_timer_handler
;
459 ops
->cursor_timer
.expires
= jiffies
+ HZ
/ 5;
460 ops
->cursor_timer
.data
= (unsigned long ) info
;
461 add_timer(&ops
->cursor_timer
);
462 ops
->flags
|= FBCON_FLAGS_CURSOR_TIMER
;
466 static void fbcon_del_cursor_timer(struct fb_info
*info
)
468 struct fbcon_ops
*ops
= info
->fbcon_par
;
470 if (info
->queue
.func
== fb_flashcursor
&&
471 ops
->flags
& FBCON_FLAGS_CURSOR_TIMER
) {
472 del_timer_sync(&ops
->cursor_timer
);
473 ops
->flags
&= ~FBCON_FLAGS_CURSOR_TIMER
;
478 static int __init
fb_console_setup(char *this_opt
)
483 if (!this_opt
|| !*this_opt
)
486 while ((options
= strsep(&this_opt
, ",")) != NULL
) {
487 if (!strncmp(options
, "font:", 5))
488 strcpy(fontname
, options
+ 5);
490 if (!strncmp(options
, "scrollback:", 11)) {
493 fbcon_softback_size
= simple_strtoul(options
, &options
, 0);
494 if (*options
== 'k' || *options
== 'K') {
495 fbcon_softback_size
*= 1024;
505 if (!strncmp(options
, "map:", 4)) {
508 for (i
= 0, j
= 0; i
< MAX_NR_CONSOLES
; i
++) {
512 (options
[j
++]-'0') % FB_MAX
;
515 fbcon_map_override();
521 if (!strncmp(options
, "vc:", 3)) {
524 first_fb_vc
= simple_strtoul(options
, &options
, 10) - 1;
527 if (*options
++ == '-')
528 last_fb_vc
= simple_strtoul(options
, &options
, 10) - 1;
529 fbcon_is_default
= 0;
532 if (!strncmp(options
, "rotate:", 7)) {
535 initial_rotation
= simple_strtoul(options
, &options
, 0);
536 if (initial_rotation
> 3)
537 initial_rotation
= 0;
543 __setup("fbcon=", fb_console_setup
);
546 static int search_fb_in_map(int idx
)
550 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
551 if (con2fb_map
[i
] == idx
)
557 static int search_for_mapped_con(void)
561 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
562 if (con2fb_map
[i
] != -1)
568 static int fbcon_takeover(int show_logo
)
572 if (!num_registered_fb
)
576 logo_shown
= FBCON_LOGO_DONTSHOW
;
578 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++)
579 con2fb_map
[i
] = info_idx
;
581 err
= take_over_console(&fb_con
, first_fb_vc
, last_fb_vc
,
585 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
595 static void fbcon_prepare_logo(struct vc_data
*vc
, struct fb_info
*info
,
596 int cols
, int rows
, int new_cols
, int new_rows
)
598 logo_shown
= FBCON_LOGO_DONTSHOW
;
601 static void fbcon_prepare_logo(struct vc_data
*vc
, struct fb_info
*info
,
602 int cols
, int rows
, int new_cols
, int new_rows
)
604 /* Need to make room for the logo */
605 struct fbcon_ops
*ops
= info
->fbcon_par
;
606 int cnt
, erase
= vc
->vc_video_erase_char
, step
;
607 unsigned short *save
= NULL
, *r
, *q
;
610 if (info
->flags
& FBINFO_MODULE
) {
611 logo_shown
= FBCON_LOGO_DONTSHOW
;
616 * remove underline attribute from erase character
617 * if black and white framebuffer.
619 if (fb_get_color_depth(&info
->var
, &info
->fix
) == 1)
621 logo_height
= fb_prepare_logo(info
, ops
->rotate
);
622 logo_lines
= DIV_ROUND_UP(logo_height
, vc
->vc_font
.height
);
623 q
= (unsigned short *) (vc
->vc_origin
+
624 vc
->vc_size_row
* rows
);
625 step
= logo_lines
* cols
;
626 for (r
= q
- logo_lines
* cols
; r
< q
; r
++)
627 if (scr_readw(r
) != vc
->vc_video_erase_char
)
629 if (r
!= q
&& new_rows
>= rows
+ logo_lines
) {
630 save
= kmalloc(logo_lines
* new_cols
* 2, GFP_KERNEL
);
632 int i
= cols
< new_cols
? cols
: new_cols
;
633 scr_memsetw(save
, erase
, logo_lines
* new_cols
* 2);
635 for (cnt
= 0; cnt
< logo_lines
; cnt
++, r
+= i
)
636 scr_memcpyw(save
+ cnt
* new_cols
, r
, 2 * i
);
641 /* We can scroll screen down */
643 for (cnt
= rows
- logo_lines
; cnt
> 0; cnt
--) {
644 scr_memcpyw(r
+ step
, r
, vc
->vc_size_row
);
649 if (vc
->vc_y
+ logo_lines
>= rows
)
650 lines
= rows
- vc
->vc_y
- 1;
654 vc
->vc_pos
+= lines
* vc
->vc_size_row
;
657 scr_memsetw((unsigned short *) vc
->vc_origin
,
659 vc
->vc_size_row
* logo_lines
);
661 if (CON_IS_VISIBLE(vc
) && vc
->vc_mode
== KD_TEXT
) {
662 fbcon_clear_margins(vc
, 0);
667 q
= (unsigned short *) (vc
->vc_origin
+
670 scr_memcpyw(q
, save
, logo_lines
* new_cols
* 2);
671 vc
->vc_y
+= logo_lines
;
672 vc
->vc_pos
+= logo_lines
* vc
->vc_size_row
;
676 if (logo_lines
> vc
->vc_bottom
) {
677 logo_shown
= FBCON_LOGO_CANSHOW
;
679 "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n");
680 } else if (logo_shown
!= FBCON_LOGO_DONTSHOW
) {
681 logo_shown
= FBCON_LOGO_DRAW
;
682 vc
->vc_top
= logo_lines
;
687 #ifdef CONFIG_FB_TILEBLITTING
688 static void set_blitting_type(struct vc_data
*vc
, struct fb_info
*info
)
690 struct fbcon_ops
*ops
= info
->fbcon_par
;
692 ops
->p
= &fb_display
[vc
->vc_num
];
694 if ((info
->flags
& FBINFO_MISC_TILEBLITTING
))
695 fbcon_set_tileops(vc
, info
);
697 fbcon_set_rotation(info
);
698 fbcon_set_bitops(ops
);
702 static int fbcon_invalid_charcount(struct fb_info
*info
, unsigned charcount
)
706 if (info
->flags
& FBINFO_MISC_TILEBLITTING
&&
707 info
->tileops
->fb_get_tilemax(info
) < charcount
)
713 static void set_blitting_type(struct vc_data
*vc
, struct fb_info
*info
)
715 struct fbcon_ops
*ops
= info
->fbcon_par
;
717 info
->flags
&= ~FBINFO_MISC_TILEBLITTING
;
718 ops
->p
= &fb_display
[vc
->vc_num
];
719 fbcon_set_rotation(info
);
720 fbcon_set_bitops(ops
);
723 static int fbcon_invalid_charcount(struct fb_info
*info
, unsigned charcount
)
728 #endif /* CONFIG_MISC_TILEBLITTING */
731 static int con2fb_acquire_newinfo(struct vc_data
*vc
, struct fb_info
*info
,
732 int unit
, int oldidx
)
734 struct fbcon_ops
*ops
= NULL
;
737 if (!try_module_get(info
->fbops
->owner
))
740 if (!err
&& info
->fbops
->fb_open
&&
741 info
->fbops
->fb_open(info
, 0))
745 ops
= kzalloc(sizeof(struct fbcon_ops
), GFP_KERNEL
);
751 info
->fbcon_par
= ops
;
754 set_blitting_type(vc
, info
);
758 con2fb_map
[unit
] = oldidx
;
759 module_put(info
->fbops
->owner
);
765 static int con2fb_release_oldinfo(struct vc_data
*vc
, struct fb_info
*oldinfo
,
766 struct fb_info
*newinfo
, int unit
,
767 int oldidx
, int found
)
769 struct fbcon_ops
*ops
= oldinfo
->fbcon_par
;
772 if (oldinfo
->fbops
->fb_release
&&
773 oldinfo
->fbops
->fb_release(oldinfo
, 0)) {
774 con2fb_map
[unit
] = oldidx
;
775 if (!found
&& newinfo
->fbops
->fb_release
)
776 newinfo
->fbops
->fb_release(newinfo
, 0);
778 module_put(newinfo
->fbops
->owner
);
783 fbcon_del_cursor_timer(oldinfo
);
784 kfree(ops
->cursor_state
.mask
);
785 kfree(ops
->cursor_data
);
786 kfree(ops
->fontbuffer
);
787 kfree(oldinfo
->fbcon_par
);
788 oldinfo
->fbcon_par
= NULL
;
789 module_put(oldinfo
->fbops
->owner
);
791 If oldinfo and newinfo are driving the same hardware,
792 the fb_release() method of oldinfo may attempt to
793 restore the hardware state. This will leave the
794 newinfo in an undefined state. Thus, a call to
795 fb_set_par() may be needed for the newinfo.
797 if (newinfo
->fbops
->fb_set_par
)
798 newinfo
->fbops
->fb_set_par(newinfo
);
804 static void con2fb_init_display(struct vc_data
*vc
, struct fb_info
*info
,
805 int unit
, int show_logo
)
807 struct fbcon_ops
*ops
= info
->fbcon_par
;
809 ops
->currcon
= fg_console
;
811 if (info
->fbops
->fb_set_par
&& !(ops
->flags
& FBCON_FLAGS_INIT
))
812 info
->fbops
->fb_set_par(info
);
814 ops
->flags
|= FBCON_FLAGS_INIT
;
816 fbcon_set_disp(info
, &info
->var
, unit
);
819 struct vc_data
*fg_vc
= vc_cons
[fg_console
].d
;
820 struct fb_info
*fg_info
=
821 registered_fb
[con2fb_map
[fg_console
]];
823 fbcon_prepare_logo(fg_vc
, fg_info
, fg_vc
->vc_cols
,
824 fg_vc
->vc_rows
, fg_vc
->vc_cols
,
828 update_screen(vc_cons
[fg_console
].d
);
832 * set_con2fb_map - map console to frame buffer device
833 * @unit: virtual console number to map
834 * @newidx: frame buffer index to map virtual console to
835 * @user: user request
837 * Maps a virtual console @unit to a frame buffer device
840 static int set_con2fb_map(int unit
, int newidx
, int user
)
842 struct vc_data
*vc
= vc_cons
[unit
].d
;
843 int oldidx
= con2fb_map
[unit
];
844 struct fb_info
*info
= registered_fb
[newidx
];
845 struct fb_info
*oldinfo
= NULL
;
848 if (oldidx
== newidx
)
851 if (!info
|| fbcon_has_exited
)
854 if (!err
&& !search_for_mapped_con()) {
856 return fbcon_takeover(0);
860 oldinfo
= registered_fb
[oldidx
];
862 found
= search_fb_in_map(newidx
);
864 acquire_console_sem();
865 con2fb_map
[unit
] = newidx
;
867 err
= con2fb_acquire_newinfo(vc
, info
, unit
, oldidx
);
871 * If old fb is not mapped to any of the consoles,
872 * fbcon should release it.
874 if (!err
&& oldinfo
&& !search_fb_in_map(oldidx
))
875 err
= con2fb_release_oldinfo(vc
, oldinfo
, info
, unit
, oldidx
,
879 int show_logo
= (fg_console
== 0 && !user
&&
880 logo_shown
!= FBCON_LOGO_DONTSHOW
);
883 fbcon_add_cursor_timer(info
);
884 con2fb_map_boot
[unit
] = newidx
;
885 con2fb_init_display(vc
, info
, unit
, show_logo
);
888 if (!search_fb_in_map(info_idx
))
891 release_console_sem();
896 * Low Level Operations
898 /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */
899 static int var_to_display(struct display
*disp
,
900 struct fb_var_screeninfo
*var
,
901 struct fb_info
*info
)
903 disp
->xres_virtual
= var
->xres_virtual
;
904 disp
->yres_virtual
= var
->yres_virtual
;
905 disp
->bits_per_pixel
= var
->bits_per_pixel
;
906 disp
->grayscale
= var
->grayscale
;
907 disp
->nonstd
= var
->nonstd
;
908 disp
->accel_flags
= var
->accel_flags
;
909 disp
->height
= var
->height
;
910 disp
->width
= var
->width
;
911 disp
->red
= var
->red
;
912 disp
->green
= var
->green
;
913 disp
->blue
= var
->blue
;
914 disp
->transp
= var
->transp
;
915 disp
->rotate
= var
->rotate
;
916 disp
->mode
= fb_match_mode(var
, &info
->modelist
);
917 if (disp
->mode
== NULL
)
918 /* This should not happen */
923 static void display_to_var(struct fb_var_screeninfo
*var
,
924 struct display
*disp
)
926 fb_videomode_to_var(var
, disp
->mode
);
927 var
->xres_virtual
= disp
->xres_virtual
;
928 var
->yres_virtual
= disp
->yres_virtual
;
929 var
->bits_per_pixel
= disp
->bits_per_pixel
;
930 var
->grayscale
= disp
->grayscale
;
931 var
->nonstd
= disp
->nonstd
;
932 var
->accel_flags
= disp
->accel_flags
;
933 var
->height
= disp
->height
;
934 var
->width
= disp
->width
;
935 var
->red
= disp
->red
;
936 var
->green
= disp
->green
;
937 var
->blue
= disp
->blue
;
938 var
->transp
= disp
->transp
;
939 var
->rotate
= disp
->rotate
;
942 static const char *fbcon_startup(void)
944 const char *display_desc
= "frame buffer device";
945 struct display
*p
= &fb_display
[fg_console
];
946 struct vc_data
*vc
= vc_cons
[fg_console
].d
;
947 const struct font_desc
*font
= NULL
;
948 struct module
*owner
;
949 struct fb_info
*info
= NULL
;
950 struct fbcon_ops
*ops
;
956 * If num_registered_fb is zero, this is a call for the dummy part.
957 * The frame buffer devices weren't initialized yet.
959 if (!num_registered_fb
|| info_idx
== -1)
962 * Instead of blindly using registered_fb[0], we use info_idx, set by
965 info
= registered_fb
[info_idx
];
969 owner
= info
->fbops
->owner
;
970 if (!try_module_get(owner
))
972 if (info
->fbops
->fb_open
&& info
->fbops
->fb_open(info
, 0)) {
977 ops
= kzalloc(sizeof(struct fbcon_ops
), GFP_KERNEL
);
985 ops
->cur_rotate
= -1;
986 info
->fbcon_par
= ops
;
987 p
->con_rotate
= initial_rotation
;
988 set_blitting_type(vc
, info
);
990 if (info
->fix
.type
!= FB_TYPE_TEXT
) {
991 if (fbcon_softback_size
) {
995 kmalloc(fbcon_softback_size
,
998 fbcon_softback_size
= 0;
1004 kfree((void *) softback_buf
);
1010 softback_in
= softback_top
= softback_curr
=
1015 /* Setup default font */
1017 if (!fontname
[0] || !(font
= find_font(fontname
)))
1018 font
= get_default_font(info
->var
.xres
,
1020 info
->pixmap
.blit_x
,
1021 info
->pixmap
.blit_y
);
1022 vc
->vc_font
.width
= font
->width
;
1023 vc
->vc_font
.height
= font
->height
;
1024 vc
->vc_font
.data
= (void *)(p
->fontdata
= font
->data
);
1025 vc
->vc_font
.charcount
= 256; /* FIXME Need to support more fonts */
1028 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
1029 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
1030 cols
/= vc
->vc_font
.width
;
1031 rows
/= vc
->vc_font
.height
;
1032 vc_resize(vc
, cols
, rows
);
1034 DPRINTK("mode: %s\n", info
->fix
.id
);
1035 DPRINTK("visual: %d\n", info
->fix
.visual
);
1036 DPRINTK("res: %dx%d-%d\n", info
->var
.xres
,
1038 info
->var
.bits_per_pixel
);
1041 if (MACH_IS_ATARI
) {
1042 cursor_blink_rate
= ATARI_CURSOR_BLINK_RATE
;
1044 request_irq(IRQ_AUTO_4
, fb_vbl_handler
,
1045 IRQ_TYPE_PRIO
, "framebuffer vbl",
1048 #endif /* CONFIG_ATARI */
1052 * On a Macintoy, the VBL interrupt may or may not be active.
1053 * As interrupt based cursor is more reliable and race free, we
1054 * probe for VBL interrupts.
1059 * Probe for VBL: set temp. handler ...
1061 irqres
= request_irq(IRQ_MAC_VBL
, fb_vbl_detect
, 0,
1062 "framebuffer vbl", info
);
1066 * ... and spin for 20 ms ...
1068 while (!vbl_detected
&& ++ct
< 1000)
1073 ("fbcon_startup: No VBL detected, using timer based cursor.\n");
1075 free_irq(IRQ_MAC_VBL
, fb_vbl_detect
);
1079 * interrupt based cursor ok
1081 cursor_blink_rate
= MAC_CURSOR_BLINK_RATE
;
1083 request_irq(IRQ_MAC_VBL
, fb_vbl_handler
, 0,
1084 "framebuffer vbl", info
);
1087 * VBL not detected: fall through, use timer based cursor
1092 #endif /* CONFIG_MAC */
1094 fbcon_add_cursor_timer(info
);
1095 fbcon_has_exited
= 0;
1096 return display_desc
;
1099 static void fbcon_init(struct vc_data
*vc
, int init
)
1101 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1102 struct fbcon_ops
*ops
;
1103 struct vc_data
**default_mode
= vc
->vc_display_fg
;
1104 struct vc_data
*svc
= *default_mode
;
1105 struct display
*t
, *p
= &fb_display
[vc
->vc_num
];
1106 int logo
= 1, new_rows
, new_cols
, rows
, cols
, charcnt
= 256;
1109 if (info_idx
== -1 || info
== NULL
)
1114 if (vc
!= svc
|| logo_shown
== FBCON_LOGO_DONTSHOW
||
1115 (info
->fix
.type
== FB_TYPE_TEXT
))
1118 if (var_to_display(p
, &info
->var
, info
))
1121 if (!info
->fbcon_par
)
1122 con2fb_acquire_newinfo(vc
, info
, vc
->vc_num
, -1);
1124 /* If we are not the first console on this
1125 fb, copy the font from that console */
1126 t
= &fb_display
[fg_console
];
1129 struct vc_data
*fvc
= vc_cons
[fg_console
].d
;
1131 vc
->vc_font
.data
= (void *)(p
->fontdata
=
1133 vc
->vc_font
.width
= fvc
->vc_font
.width
;
1134 vc
->vc_font
.height
= fvc
->vc_font
.height
;
1135 p
->userfont
= t
->userfont
;
1138 REFCOUNT(p
->fontdata
)++;
1140 const struct font_desc
*font
= NULL
;
1142 if (!fontname
[0] || !(font
= find_font(fontname
)))
1143 font
= get_default_font(info
->var
.xres
,
1145 info
->pixmap
.blit_x
,
1146 info
->pixmap
.blit_y
);
1147 vc
->vc_font
.width
= font
->width
;
1148 vc
->vc_font
.height
= font
->height
;
1149 vc
->vc_font
.data
= (void *)(p
->fontdata
= font
->data
);
1150 vc
->vc_font
.charcount
= 256; /* FIXME Need to
1151 support more fonts */
1156 charcnt
= FNTCHARCNT(p
->fontdata
);
1158 vc
->vc_can_do_color
= (fb_get_color_depth(&info
->var
, &info
->fix
)!=1);
1159 vc
->vc_complement_mask
= vc
->vc_can_do_color
? 0x7700 : 0x0800;
1160 if (charcnt
== 256) {
1161 vc
->vc_hi_font_mask
= 0;
1163 vc
->vc_hi_font_mask
= 0x100;
1164 if (vc
->vc_can_do_color
)
1165 vc
->vc_complement_mask
<<= 1;
1168 if (!*svc
->vc_uni_pagedir_loc
)
1169 con_set_default_unimap(svc
);
1170 if (!*vc
->vc_uni_pagedir_loc
)
1171 con_copy_unimap(vc
, svc
);
1173 ops
= info
->fbcon_par
;
1174 p
->con_rotate
= initial_rotation
;
1175 set_blitting_type(vc
, info
);
1179 new_cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
1180 new_rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
1181 new_cols
/= vc
->vc_font
.width
;
1182 new_rows
/= vc
->vc_font
.height
;
1183 vc_resize(vc
, new_cols
, new_rows
);
1186 * We must always set the mode. The mode of the previous console
1187 * driver could be in the same resolution but we are using different
1188 * hardware so we have to initialize the hardware.
1190 * We need to do it in fbcon_init() to prevent screen corruption.
1192 if (CON_IS_VISIBLE(vc
) && vc
->vc_mode
== KD_TEXT
) {
1193 if (info
->fbops
->fb_set_par
&&
1194 !(ops
->flags
& FBCON_FLAGS_INIT
))
1195 info
->fbops
->fb_set_par(info
);
1196 ops
->flags
|= FBCON_FLAGS_INIT
;
1201 if ((cap
& FBINFO_HWACCEL_COPYAREA
) &&
1202 !(cap
& FBINFO_HWACCEL_DISABLED
))
1203 p
->scrollmode
= SCROLL_MOVE
;
1204 else /* default to something safe */
1205 p
->scrollmode
= SCROLL_REDRAW
;
1208 * ++guenther: console.c:vc_allocate() relies on initializing
1209 * vc_{cols,rows}, but we must not set those if we are only
1210 * resizing the console.
1213 vc
->vc_cols
= new_cols
;
1214 vc
->vc_rows
= new_rows
;
1218 fbcon_prepare_logo(vc
, info
, cols
, rows
, new_cols
, new_rows
);
1220 if (vc
== svc
&& softback_buf
)
1221 fbcon_update_softback(vc
);
1223 if (ops
->rotate_font
&& ops
->rotate_font(info
, vc
)) {
1224 ops
->rotate
= FB_ROTATE_UR
;
1225 set_blitting_type(vc
, info
);
1228 ops
->p
= &fb_display
[fg_console
];
1231 static void fbcon_free_font(struct display
*p
)
1233 if (p
->userfont
&& p
->fontdata
&& (--REFCOUNT(p
->fontdata
) == 0))
1234 kfree(p
->fontdata
- FONT_EXTRA_WORDS
* sizeof(int));
1239 static void fbcon_deinit(struct vc_data
*vc
)
1241 struct display
*p
= &fb_display
[vc
->vc_num
];
1242 struct fb_info
*info
;
1243 struct fbcon_ops
*ops
;
1247 idx
= con2fb_map
[vc
->vc_num
];
1252 info
= registered_fb
[idx
];
1257 ops
= info
->fbcon_par
;
1262 if (CON_IS_VISIBLE(vc
))
1263 fbcon_del_cursor_timer(info
);
1265 ops
->flags
&= ~FBCON_FLAGS_INIT
;
1268 if (!con_is_bound(&fb_con
))
1274 /* ====================================================================== */
1276 /* fbcon_XXX routines - interface used by the world
1278 * This system is now divided into two levels because of complications
1279 * caused by hardware scrolling. Top level functions:
1281 * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins()
1283 * handles y values in range [0, scr_height-1] that correspond to real
1284 * screen positions. y_wrap shift means that first line of bitmap may be
1285 * anywhere on this display. These functions convert lineoffsets to
1286 * bitmap offsets and deal with the wrap-around case by splitting blits.
1288 * fbcon_bmove_physical_8() -- These functions fast implementations
1289 * fbcon_clear_physical_8() -- of original fbcon_XXX fns.
1290 * fbcon_putc_physical_8() -- (font width != 8) may be added later
1294 * At the moment fbcon_putc() cannot blit across vertical wrap boundary
1295 * Implies should only really hardware scroll in rows. Only reason for
1296 * restriction is simplicity & efficiency at the moment.
1299 static void fbcon_clear(struct vc_data
*vc
, int sy
, int sx
, int height
,
1302 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1303 struct fbcon_ops
*ops
= info
->fbcon_par
;
1305 struct display
*p
= &fb_display
[vc
->vc_num
];
1308 if (fbcon_is_inactive(vc
, info
))
1311 if (!height
|| !width
)
1314 if (sy
< vc
->vc_top
&& vc
->vc_top
== logo_lines
)
1317 /* Split blits that cross physical y_wrap boundary */
1319 y_break
= p
->vrows
- p
->yscroll
;
1320 if (sy
< y_break
&& sy
+ height
- 1 >= y_break
) {
1321 u_int b
= y_break
- sy
;
1322 ops
->clear(vc
, info
, real_y(p
, sy
), sx
, b
, width
);
1323 ops
->clear(vc
, info
, real_y(p
, sy
+ b
), sx
, height
- b
,
1326 ops
->clear(vc
, info
, real_y(p
, sy
), sx
, height
, width
);
1329 static void fbcon_putcs(struct vc_data
*vc
, const unsigned short *s
,
1330 int count
, int ypos
, int xpos
)
1332 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1333 struct display
*p
= &fb_display
[vc
->vc_num
];
1334 struct fbcon_ops
*ops
= info
->fbcon_par
;
1336 if (!fbcon_is_inactive(vc
, info
))
1337 ops
->putcs(vc
, info
, s
, count
, real_y(p
, ypos
), xpos
,
1338 get_color(vc
, info
, scr_readw(s
), 1),
1339 get_color(vc
, info
, scr_readw(s
), 0));
1342 static void fbcon_putc(struct vc_data
*vc
, int c
, int ypos
, int xpos
)
1346 scr_writew(c
, &chr
);
1347 fbcon_putcs(vc
, &chr
, 1, ypos
, xpos
);
1350 static void fbcon_clear_margins(struct vc_data
*vc
, int bottom_only
)
1352 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1353 struct fbcon_ops
*ops
= info
->fbcon_par
;
1355 if (!fbcon_is_inactive(vc
, info
))
1356 ops
->clear_margins(vc
, info
, bottom_only
);
1359 static void fbcon_cursor(struct vc_data
*vc
, int mode
)
1361 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1362 struct fbcon_ops
*ops
= info
->fbcon_par
;
1364 int c
= scr_readw((u16
*) vc
->vc_pos
);
1366 if (fbcon_is_inactive(vc
, info
) || vc
->vc_deccm
!= 1)
1369 if (vc
->vc_cursor_type
& 0x10)
1370 fbcon_del_cursor_timer(info
);
1372 fbcon_add_cursor_timer(info
);
1374 ops
->cursor_flash
= (mode
== CM_ERASE
) ? 0 : 1;
1375 if (mode
& CM_SOFTBACK
) {
1376 mode
&= ~CM_SOFTBACK
;
1380 fbcon_set_origin(vc
);
1384 ops
->cursor(vc
, info
, mode
, y
, get_color(vc
, info
, c
, 1),
1385 get_color(vc
, info
, c
, 0));
1386 vbl_cursor_cnt
= CURSOR_DRAW_DELAY
;
1389 static int scrollback_phys_max
= 0;
1390 static int scrollback_max
= 0;
1391 static int scrollback_current
= 0;
1393 static void fbcon_set_disp(struct fb_info
*info
, struct fb_var_screeninfo
*var
,
1396 struct display
*p
, *t
;
1397 struct vc_data
**default_mode
, *vc
;
1398 struct vc_data
*svc
;
1399 struct fbcon_ops
*ops
= info
->fbcon_par
;
1400 int rows
, cols
, charcnt
= 256;
1402 p
= &fb_display
[unit
];
1404 if (var_to_display(p
, var
, info
))
1407 vc
= vc_cons
[unit
].d
;
1412 default_mode
= vc
->vc_display_fg
;
1413 svc
= *default_mode
;
1414 t
= &fb_display
[svc
->vc_num
];
1416 if (!vc
->vc_font
.data
) {
1417 vc
->vc_font
.data
= (void *)(p
->fontdata
= t
->fontdata
);
1418 vc
->vc_font
.width
= (*default_mode
)->vc_font
.width
;
1419 vc
->vc_font
.height
= (*default_mode
)->vc_font
.height
;
1420 p
->userfont
= t
->userfont
;
1422 REFCOUNT(p
->fontdata
)++;
1425 charcnt
= FNTCHARCNT(p
->fontdata
);
1427 var
->activate
= FB_ACTIVATE_NOW
;
1428 info
->var
.activate
= var
->activate
;
1429 var
->yoffset
= info
->var
.yoffset
;
1430 var
->xoffset
= info
->var
.xoffset
;
1431 fb_set_var(info
, var
);
1432 ops
->var
= info
->var
;
1433 vc
->vc_can_do_color
= (fb_get_color_depth(&info
->var
, &info
->fix
)!=1);
1434 vc
->vc_complement_mask
= vc
->vc_can_do_color
? 0x7700 : 0x0800;
1435 if (charcnt
== 256) {
1436 vc
->vc_hi_font_mask
= 0;
1438 vc
->vc_hi_font_mask
= 0x100;
1439 if (vc
->vc_can_do_color
)
1440 vc
->vc_complement_mask
<<= 1;
1443 if (!*svc
->vc_uni_pagedir_loc
)
1444 con_set_default_unimap(svc
);
1445 if (!*vc
->vc_uni_pagedir_loc
)
1446 con_copy_unimap(vc
, svc
);
1448 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
1449 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
1450 cols
/= vc
->vc_font
.width
;
1451 rows
/= vc
->vc_font
.height
;
1452 vc_resize(vc
, cols
, rows
);
1454 if (CON_IS_VISIBLE(vc
)) {
1457 fbcon_update_softback(vc
);
1461 static __inline__
void ywrap_up(struct vc_data
*vc
, int count
)
1463 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1464 struct fbcon_ops
*ops
= info
->fbcon_par
;
1465 struct display
*p
= &fb_display
[vc
->vc_num
];
1467 p
->yscroll
+= count
;
1468 if (p
->yscroll
>= p
->vrows
) /* Deal with wrap */
1469 p
->yscroll
-= p
->vrows
;
1470 ops
->var
.xoffset
= 0;
1471 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1472 ops
->var
.vmode
|= FB_VMODE_YWRAP
;
1473 ops
->update_start(info
);
1474 scrollback_max
+= count
;
1475 if (scrollback_max
> scrollback_phys_max
)
1476 scrollback_max
= scrollback_phys_max
;
1477 scrollback_current
= 0;
1480 static __inline__
void ywrap_down(struct vc_data
*vc
, int count
)
1482 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1483 struct fbcon_ops
*ops
= info
->fbcon_par
;
1484 struct display
*p
= &fb_display
[vc
->vc_num
];
1486 p
->yscroll
-= count
;
1487 if (p
->yscroll
< 0) /* Deal with wrap */
1488 p
->yscroll
+= p
->vrows
;
1489 ops
->var
.xoffset
= 0;
1490 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1491 ops
->var
.vmode
|= FB_VMODE_YWRAP
;
1492 ops
->update_start(info
);
1493 scrollback_max
-= count
;
1494 if (scrollback_max
< 0)
1496 scrollback_current
= 0;
1499 static __inline__
void ypan_up(struct vc_data
*vc
, int count
)
1501 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1502 struct display
*p
= &fb_display
[vc
->vc_num
];
1503 struct fbcon_ops
*ops
= info
->fbcon_par
;
1505 p
->yscroll
+= count
;
1506 if (p
->yscroll
> p
->vrows
- vc
->vc_rows
) {
1507 ops
->bmove(vc
, info
, p
->vrows
- vc
->vc_rows
,
1508 0, 0, 0, vc
->vc_rows
, vc
->vc_cols
);
1509 p
->yscroll
-= p
->vrows
- vc
->vc_rows
;
1512 ops
->var
.xoffset
= 0;
1513 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1514 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1515 ops
->update_start(info
);
1516 fbcon_clear_margins(vc
, 1);
1517 scrollback_max
+= count
;
1518 if (scrollback_max
> scrollback_phys_max
)
1519 scrollback_max
= scrollback_phys_max
;
1520 scrollback_current
= 0;
1523 static __inline__
void ypan_up_redraw(struct vc_data
*vc
, int t
, int count
)
1525 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1526 struct fbcon_ops
*ops
= info
->fbcon_par
;
1527 struct display
*p
= &fb_display
[vc
->vc_num
];
1529 p
->yscroll
+= count
;
1531 if (p
->yscroll
> p
->vrows
- vc
->vc_rows
) {
1532 p
->yscroll
-= p
->vrows
- vc
->vc_rows
;
1533 fbcon_redraw_move(vc
, p
, t
+ count
, vc
->vc_rows
- count
, t
);
1536 ops
->var
.xoffset
= 0;
1537 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1538 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1539 ops
->update_start(info
);
1540 fbcon_clear_margins(vc
, 1);
1541 scrollback_max
+= count
;
1542 if (scrollback_max
> scrollback_phys_max
)
1543 scrollback_max
= scrollback_phys_max
;
1544 scrollback_current
= 0;
1547 static __inline__
void ypan_down(struct vc_data
*vc
, int count
)
1549 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1550 struct display
*p
= &fb_display
[vc
->vc_num
];
1551 struct fbcon_ops
*ops
= info
->fbcon_par
;
1553 p
->yscroll
-= count
;
1554 if (p
->yscroll
< 0) {
1555 ops
->bmove(vc
, info
, 0, 0, p
->vrows
- vc
->vc_rows
,
1556 0, vc
->vc_rows
, vc
->vc_cols
);
1557 p
->yscroll
+= p
->vrows
- vc
->vc_rows
;
1560 ops
->var
.xoffset
= 0;
1561 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1562 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1563 ops
->update_start(info
);
1564 fbcon_clear_margins(vc
, 1);
1565 scrollback_max
-= count
;
1566 if (scrollback_max
< 0)
1568 scrollback_current
= 0;
1571 static __inline__
void ypan_down_redraw(struct vc_data
*vc
, int t
, int count
)
1573 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1574 struct fbcon_ops
*ops
= info
->fbcon_par
;
1575 struct display
*p
= &fb_display
[vc
->vc_num
];
1577 p
->yscroll
-= count
;
1579 if (p
->yscroll
< 0) {
1580 p
->yscroll
+= p
->vrows
- vc
->vc_rows
;
1581 fbcon_redraw_move(vc
, p
, t
, vc
->vc_rows
- count
, t
+ count
);
1584 ops
->var
.xoffset
= 0;
1585 ops
->var
.yoffset
= p
->yscroll
* vc
->vc_font
.height
;
1586 ops
->var
.vmode
&= ~FB_VMODE_YWRAP
;
1587 ops
->update_start(info
);
1588 fbcon_clear_margins(vc
, 1);
1589 scrollback_max
-= count
;
1590 if (scrollback_max
< 0)
1592 scrollback_current
= 0;
1595 static void fbcon_redraw_softback(struct vc_data
*vc
, struct display
*p
,
1598 int count
= vc
->vc_rows
;
1599 unsigned short *d
, *s
;
1603 d
= (u16
*) softback_curr
;
1604 if (d
== (u16
*) softback_in
)
1605 d
= (u16
*) vc
->vc_origin
;
1606 n
= softback_curr
+ delta
* vc
->vc_size_row
;
1607 softback_lines
-= delta
;
1609 if (softback_curr
< softback_top
&& n
< softback_buf
) {
1610 n
+= softback_end
- softback_buf
;
1611 if (n
< softback_top
) {
1613 (softback_top
- n
) / vc
->vc_size_row
;
1616 } else if (softback_curr
>= softback_top
1617 && n
< softback_top
) {
1619 (softback_top
- n
) / vc
->vc_size_row
;
1623 if (softback_curr
> softback_in
&& n
>= softback_end
) {
1624 n
+= softback_buf
- softback_end
;
1625 if (n
> softback_in
) {
1629 } else if (softback_curr
<= softback_in
&& n
> softback_in
) {
1634 if (n
== softback_curr
)
1637 s
= (u16
*) softback_curr
;
1638 if (s
== (u16
*) softback_in
)
1639 s
= (u16
*) vc
->vc_origin
;
1641 unsigned short *start
;
1645 unsigned short attr
= 1;
1648 le
= advance_row(s
, 1);
1651 if (attr
!= (c
& 0xff00)) {
1654 fbcon_putcs(vc
, start
, s
- start
,
1660 if (c
== scr_readw(d
)) {
1662 fbcon_putcs(vc
, start
, s
- start
,
1675 fbcon_putcs(vc
, start
, s
- start
, line
, x
);
1677 if (d
== (u16
*) softback_end
)
1678 d
= (u16
*) softback_buf
;
1679 if (d
== (u16
*) softback_in
)
1680 d
= (u16
*) vc
->vc_origin
;
1681 if (s
== (u16
*) softback_end
)
1682 s
= (u16
*) softback_buf
;
1683 if (s
== (u16
*) softback_in
)
1684 s
= (u16
*) vc
->vc_origin
;
1688 static void fbcon_redraw_move(struct vc_data
*vc
, struct display
*p
,
1689 int line
, int count
, int dy
)
1691 unsigned short *s
= (unsigned short *)
1692 (vc
->vc_origin
+ vc
->vc_size_row
* line
);
1695 unsigned short *start
= s
;
1696 unsigned short *le
= advance_row(s
, 1);
1699 unsigned short attr
= 1;
1703 if (attr
!= (c
& 0xff00)) {
1706 fbcon_putcs(vc
, start
, s
- start
,
1712 console_conditional_schedule();
1716 fbcon_putcs(vc
, start
, s
- start
, dy
, x
);
1717 console_conditional_schedule();
1722 static void fbcon_redraw_blit(struct vc_data
*vc
, struct fb_info
*info
,
1723 struct display
*p
, int line
, int count
, int ycount
)
1725 int offset
= ycount
* vc
->vc_cols
;
1726 unsigned short *d
= (unsigned short *)
1727 (vc
->vc_origin
+ vc
->vc_size_row
* line
);
1728 unsigned short *s
= d
+ offset
;
1729 struct fbcon_ops
*ops
= info
->fbcon_par
;
1732 unsigned short *start
= s
;
1733 unsigned short *le
= advance_row(s
, 1);
1740 if (c
== scr_readw(d
)) {
1742 ops
->bmove(vc
, info
, line
+ ycount
, x
,
1743 line
, x
, 1, s
-start
);
1753 console_conditional_schedule();
1758 ops
->bmove(vc
, info
, line
+ ycount
, x
, line
, x
, 1,
1760 console_conditional_schedule();
1765 /* NOTE: We subtract two lines from these pointers */
1766 s
-= vc
->vc_size_row
;
1767 d
-= vc
->vc_size_row
;
1772 static void fbcon_redraw(struct vc_data
*vc
, struct display
*p
,
1773 int line
, int count
, int offset
)
1775 unsigned short *d
= (unsigned short *)
1776 (vc
->vc_origin
+ vc
->vc_size_row
* line
);
1777 unsigned short *s
= d
+ offset
;
1780 unsigned short *start
= s
;
1781 unsigned short *le
= advance_row(s
, 1);
1784 unsigned short attr
= 1;
1788 if (attr
!= (c
& 0xff00)) {
1791 fbcon_putcs(vc
, start
, s
- start
,
1797 if (c
== scr_readw(d
)) {
1799 fbcon_putcs(vc
, start
, s
- start
,
1809 console_conditional_schedule();
1814 fbcon_putcs(vc
, start
, s
- start
, line
, x
);
1815 console_conditional_schedule();
1820 /* NOTE: We subtract two lines from these pointers */
1821 s
-= vc
->vc_size_row
;
1822 d
-= vc
->vc_size_row
;
1827 static inline void fbcon_softback_note(struct vc_data
*vc
, int t
,
1832 if (vc
->vc_num
!= fg_console
)
1834 p
= (unsigned short *) (vc
->vc_origin
+ t
* vc
->vc_size_row
);
1837 scr_memcpyw((u16
*) softback_in
, p
, vc
->vc_size_row
);
1839 p
= advance_row(p
, 1);
1840 softback_in
+= vc
->vc_size_row
;
1841 if (softback_in
== softback_end
)
1842 softback_in
= softback_buf
;
1843 if (softback_in
== softback_top
) {
1844 softback_top
+= vc
->vc_size_row
;
1845 if (softback_top
== softback_end
)
1846 softback_top
= softback_buf
;
1849 softback_curr
= softback_in
;
1852 static int fbcon_scroll(struct vc_data
*vc
, int t
, int b
, int dir
,
1855 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
1856 struct display
*p
= &fb_display
[vc
->vc_num
];
1857 int scroll_partial
= info
->flags
& FBINFO_PARTIAL_PAN_OK
;
1859 if (fbcon_is_inactive(vc
, info
))
1862 fbcon_cursor(vc
, CM_ERASE
);
1865 * ++Geert: Only use ywrap/ypan if the console is in text mode
1866 * ++Andrew: Only use ypan on hardware text mode when scrolling the
1867 * whole screen (prevents flicker).
1872 if (count
> vc
->vc_rows
) /* Maximum realistic size */
1873 count
= vc
->vc_rows
;
1875 fbcon_softback_note(vc
, t
, count
);
1876 if (logo_shown
>= 0)
1878 switch (p
->scrollmode
) {
1880 fbcon_redraw_blit(vc
, info
, p
, t
, b
- t
- count
,
1882 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1883 scr_memsetw((unsigned short *) (vc
->vc_origin
+
1886 vc
->vc_video_erase_char
,
1887 vc
->vc_size_row
* count
);
1891 case SCROLL_WRAP_MOVE
:
1892 if (b
- t
- count
> 3 * vc
->vc_rows
>> 2) {
1894 fbcon_bmove(vc
, 0, 0, count
, 0, t
,
1896 ywrap_up(vc
, count
);
1897 if (vc
->vc_rows
- b
> 0)
1898 fbcon_bmove(vc
, b
- count
, 0, b
, 0,
1901 } else if (info
->flags
& FBINFO_READS_FAST
)
1902 fbcon_bmove(vc
, t
+ count
, 0, t
, 0,
1903 b
- t
- count
, vc
->vc_cols
);
1906 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1909 case SCROLL_PAN_REDRAW
:
1910 if ((p
->yscroll
+ count
<=
1911 2 * (p
->vrows
- vc
->vc_rows
))
1912 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
1915 3 * vc
->vc_rows
>> 2)))) {
1917 fbcon_redraw_move(vc
, p
, 0, t
, count
);
1918 ypan_up_redraw(vc
, t
, count
);
1919 if (vc
->vc_rows
- b
> 0)
1920 fbcon_redraw_move(vc
, p
, b
,
1921 vc
->vc_rows
- b
, b
);
1923 fbcon_redraw_move(vc
, p
, t
+ count
, b
- t
- count
, t
);
1924 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1927 case SCROLL_PAN_MOVE
:
1928 if ((p
->yscroll
+ count
<=
1929 2 * (p
->vrows
- vc
->vc_rows
))
1930 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
1933 3 * vc
->vc_rows
>> 2)))) {
1935 fbcon_bmove(vc
, 0, 0, count
, 0, t
,
1938 if (vc
->vc_rows
- b
> 0)
1939 fbcon_bmove(vc
, b
- count
, 0, b
, 0,
1942 } else if (info
->flags
& FBINFO_READS_FAST
)
1943 fbcon_bmove(vc
, t
+ count
, 0, t
, 0,
1944 b
- t
- count
, vc
->vc_cols
);
1947 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1952 fbcon_redraw(vc
, p
, t
, b
- t
- count
,
1953 count
* vc
->vc_cols
);
1954 fbcon_clear(vc
, b
- count
, 0, count
, vc
->vc_cols
);
1955 scr_memsetw((unsigned short *) (vc
->vc_origin
+
1958 vc
->vc_video_erase_char
,
1959 vc
->vc_size_row
* count
);
1965 if (count
> vc
->vc_rows
) /* Maximum realistic size */
1966 count
= vc
->vc_rows
;
1967 if (logo_shown
>= 0)
1969 switch (p
->scrollmode
) {
1971 fbcon_redraw_blit(vc
, info
, p
, b
- 1, b
- t
- count
,
1973 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
1974 scr_memsetw((unsigned short *) (vc
->vc_origin
+
1977 vc
->vc_video_erase_char
,
1978 vc
->vc_size_row
* count
);
1982 case SCROLL_WRAP_MOVE
:
1983 if (b
- t
- count
> 3 * vc
->vc_rows
>> 2) {
1984 if (vc
->vc_rows
- b
> 0)
1985 fbcon_bmove(vc
, b
, 0, b
- count
, 0,
1988 ywrap_down(vc
, count
);
1990 fbcon_bmove(vc
, count
, 0, 0, 0, t
,
1992 } else if (info
->flags
& FBINFO_READS_FAST
)
1993 fbcon_bmove(vc
, t
, 0, t
+ count
, 0,
1994 b
- t
- count
, vc
->vc_cols
);
1997 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
2000 case SCROLL_PAN_MOVE
:
2001 if ((count
- p
->yscroll
<= p
->vrows
- vc
->vc_rows
)
2002 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
2005 3 * vc
->vc_rows
>> 2)))) {
2006 if (vc
->vc_rows
- b
> 0)
2007 fbcon_bmove(vc
, b
, 0, b
- count
, 0,
2010 ypan_down(vc
, count
);
2012 fbcon_bmove(vc
, count
, 0, 0, 0, t
,
2014 } else if (info
->flags
& FBINFO_READS_FAST
)
2015 fbcon_bmove(vc
, t
, 0, t
+ count
, 0,
2016 b
- t
- count
, vc
->vc_cols
);
2019 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
2022 case SCROLL_PAN_REDRAW
:
2023 if ((count
- p
->yscroll
<= p
->vrows
- vc
->vc_rows
)
2024 && ((!scroll_partial
&& (b
- t
== vc
->vc_rows
))
2027 3 * vc
->vc_rows
>> 2)))) {
2028 if (vc
->vc_rows
- b
> 0)
2029 fbcon_redraw_move(vc
, p
, b
, vc
->vc_rows
- b
,
2031 ypan_down_redraw(vc
, t
, count
);
2033 fbcon_redraw_move(vc
, p
, count
, t
, 0);
2035 fbcon_redraw_move(vc
, p
, t
, b
- t
- count
, t
+ count
);
2036 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
2041 fbcon_redraw(vc
, p
, b
- 1, b
- t
- count
,
2042 -count
* vc
->vc_cols
);
2043 fbcon_clear(vc
, t
, 0, count
, vc
->vc_cols
);
2044 scr_memsetw((unsigned short *) (vc
->vc_origin
+
2047 vc
->vc_video_erase_char
,
2048 vc
->vc_size_row
* count
);
2056 static void fbcon_bmove(struct vc_data
*vc
, int sy
, int sx
, int dy
, int dx
,
2057 int height
, int width
)
2059 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2060 struct display
*p
= &fb_display
[vc
->vc_num
];
2062 if (fbcon_is_inactive(vc
, info
))
2065 if (!width
|| !height
)
2068 /* Split blits that cross physical y_wrap case.
2069 * Pathological case involves 4 blits, better to use recursive
2070 * code rather than unrolled case
2072 * Recursive invocations don't need to erase the cursor over and
2073 * over again, so we use fbcon_bmove_rec()
2075 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, height
, width
,
2076 p
->vrows
- p
->yscroll
);
2079 static void fbcon_bmove_rec(struct vc_data
*vc
, struct display
*p
, int sy
, int sx
,
2080 int dy
, int dx
, int height
, int width
, u_int y_break
)
2082 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2083 struct fbcon_ops
*ops
= info
->fbcon_par
;
2086 if (sy
< y_break
&& sy
+ height
> y_break
) {
2088 if (dy
< sy
) { /* Avoid trashing self */
2089 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
2091 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
2092 height
- b
, width
, y_break
);
2094 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
2095 height
- b
, width
, y_break
);
2096 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
2102 if (dy
< y_break
&& dy
+ height
> y_break
) {
2104 if (dy
< sy
) { /* Avoid trashing self */
2105 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
2107 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
2108 height
- b
, width
, y_break
);
2110 fbcon_bmove_rec(vc
, p
, sy
+ b
, sx
, dy
+ b
, dx
,
2111 height
- b
, width
, y_break
);
2112 fbcon_bmove_rec(vc
, p
, sy
, sx
, dy
, dx
, b
, width
,
2117 ops
->bmove(vc
, info
, real_y(p
, sy
), sx
, real_y(p
, dy
), dx
,
2121 static void updatescrollmode(struct display
*p
,
2122 struct fb_info
*info
,
2125 struct fbcon_ops
*ops
= info
->fbcon_par
;
2126 int fh
= vc
->vc_font
.height
;
2127 int cap
= info
->flags
;
2129 int ypan
= FBCON_SWAP(ops
->rotate
, info
->fix
.ypanstep
,
2130 info
->fix
.xpanstep
);
2131 int ywrap
= FBCON_SWAP(ops
->rotate
, info
->fix
.ywrapstep
, t
);
2132 int yres
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2133 int vyres
= FBCON_SWAP(ops
->rotate
, info
->var
.yres_virtual
,
2134 info
->var
.xres_virtual
);
2135 int good_pan
= (cap
& FBINFO_HWACCEL_YPAN
) &&
2136 divides(ypan
, vc
->vc_font
.height
) && vyres
> yres
;
2137 int good_wrap
= (cap
& FBINFO_HWACCEL_YWRAP
) &&
2138 divides(ywrap
, vc
->vc_font
.height
) &&
2139 divides(vc
->vc_font
.height
, vyres
) &&
2140 divides(vc
->vc_font
.height
, yres
);
2141 int reading_fast
= cap
& FBINFO_READS_FAST
;
2142 int fast_copyarea
= (cap
& FBINFO_HWACCEL_COPYAREA
) &&
2143 !(cap
& FBINFO_HWACCEL_DISABLED
);
2144 int fast_imageblit
= (cap
& FBINFO_HWACCEL_IMAGEBLIT
) &&
2145 !(cap
& FBINFO_HWACCEL_DISABLED
);
2147 p
->vrows
= vyres
/fh
;
2148 if (yres
> (fh
* (vc
->vc_rows
+ 1)))
2149 p
->vrows
-= (yres
- (fh
* vc
->vc_rows
)) / fh
;
2150 if ((yres
% fh
) && (vyres
% fh
< yres
% fh
))
2153 if (good_wrap
|| good_pan
) {
2154 if (reading_fast
|| fast_copyarea
)
2155 p
->scrollmode
= good_wrap
?
2156 SCROLL_WRAP_MOVE
: SCROLL_PAN_MOVE
;
2158 p
->scrollmode
= good_wrap
? SCROLL_REDRAW
:
2161 if (reading_fast
|| (fast_copyarea
&& !fast_imageblit
))
2162 p
->scrollmode
= SCROLL_MOVE
;
2164 p
->scrollmode
= SCROLL_REDRAW
;
2168 static int fbcon_resize(struct vc_data
*vc
, unsigned int width
,
2169 unsigned int height
, unsigned int user
)
2171 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2172 struct fbcon_ops
*ops
= info
->fbcon_par
;
2173 struct display
*p
= &fb_display
[vc
->vc_num
];
2174 struct fb_var_screeninfo var
= info
->var
;
2175 int x_diff
, y_diff
, virt_w
, virt_h
, virt_fw
, virt_fh
;
2177 virt_w
= FBCON_SWAP(ops
->rotate
, width
, height
);
2178 virt_h
= FBCON_SWAP(ops
->rotate
, height
, width
);
2179 virt_fw
= FBCON_SWAP(ops
->rotate
, vc
->vc_font
.width
,
2180 vc
->vc_font
.height
);
2181 virt_fh
= FBCON_SWAP(ops
->rotate
, vc
->vc_font
.height
,
2183 var
.xres
= virt_w
* virt_fw
;
2184 var
.yres
= virt_h
* virt_fh
;
2185 x_diff
= info
->var
.xres
- var
.xres
;
2186 y_diff
= info
->var
.yres
- var
.yres
;
2187 if (x_diff
< 0 || x_diff
> virt_fw
||
2188 y_diff
< 0 || y_diff
> virt_fh
) {
2189 const struct fb_videomode
*mode
;
2191 DPRINTK("attempting resize %ix%i\n", var
.xres
, var
.yres
);
2192 mode
= fb_find_best_mode(&var
, &info
->modelist
);
2195 display_to_var(&var
, p
);
2196 fb_videomode_to_var(&var
, mode
);
2198 if (virt_w
> var
.xres
/virt_fw
|| virt_h
> var
.yres
/virt_fh
)
2201 DPRINTK("resize now %ix%i\n", var
.xres
, var
.yres
);
2202 if (CON_IS_VISIBLE(vc
)) {
2203 var
.activate
= FB_ACTIVATE_NOW
|
2205 fb_set_var(info
, &var
);
2207 var_to_display(p
, &info
->var
, info
);
2208 ops
->var
= info
->var
;
2210 updatescrollmode(p
, info
, vc
);
2214 static int fbcon_switch(struct vc_data
*vc
)
2216 struct fb_info
*info
, *old_info
= NULL
;
2217 struct fbcon_ops
*ops
;
2218 struct display
*p
= &fb_display
[vc
->vc_num
];
2219 struct fb_var_screeninfo var
;
2220 int i
, prev_console
, charcnt
= 256;
2222 info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2223 ops
= info
->fbcon_par
;
2227 fbcon_set_origin(vc
);
2228 softback_top
= softback_curr
= softback_in
= softback_buf
;
2230 fbcon_update_softback(vc
);
2233 if (logo_shown
>= 0) {
2234 struct vc_data
*conp2
= vc_cons
[logo_shown
].d
;
2236 if (conp2
->vc_top
== logo_lines
2237 && conp2
->vc_bottom
== conp2
->vc_rows
)
2239 logo_shown
= FBCON_LOGO_CANSHOW
;
2242 prev_console
= ops
->currcon
;
2243 if (prev_console
!= -1)
2244 old_info
= registered_fb
[con2fb_map
[prev_console
]];
2246 * FIXME: If we have multiple fbdev's loaded, we need to
2247 * update all info->currcon. Perhaps, we can place this
2248 * in a centralized structure, but this might break some
2251 * info->currcon = vc->vc_num;
2253 for (i
= 0; i
< FB_MAX
; i
++) {
2254 if (registered_fb
[i
] != NULL
&& registered_fb
[i
]->fbcon_par
) {
2255 struct fbcon_ops
*o
= registered_fb
[i
]->fbcon_par
;
2257 o
->currcon
= vc
->vc_num
;
2260 memset(&var
, 0, sizeof(struct fb_var_screeninfo
));
2261 display_to_var(&var
, p
);
2262 var
.activate
= FB_ACTIVATE_NOW
;
2265 * make sure we don't unnecessarily trip the memcmp()
2268 info
->var
.activate
= var
.activate
;
2269 var
.vmode
|= info
->var
.vmode
& ~FB_VMODE_MASK
;
2270 fb_set_var(info
, &var
);
2271 ops
->var
= info
->var
;
2273 if (old_info
!= NULL
&& (old_info
!= info
||
2274 info
->flags
& FBINFO_MISC_ALWAYS_SETPAR
)) {
2275 if (info
->fbops
->fb_set_par
)
2276 info
->fbops
->fb_set_par(info
);
2278 if (old_info
!= info
)
2279 fbcon_del_cursor_timer(old_info
);
2282 if (fbcon_is_inactive(vc
, info
) ||
2283 ops
->blank_state
!= FB_BLANK_UNBLANK
)
2284 fbcon_del_cursor_timer(info
);
2286 fbcon_add_cursor_timer(info
);
2288 set_blitting_type(vc
, info
);
2289 ops
->cursor_reset
= 1;
2291 if (ops
->rotate_font
&& ops
->rotate_font(info
, vc
)) {
2292 ops
->rotate
= FB_ROTATE_UR
;
2293 set_blitting_type(vc
, info
);
2296 vc
->vc_can_do_color
= (fb_get_color_depth(&info
->var
, &info
->fix
)!=1);
2297 vc
->vc_complement_mask
= vc
->vc_can_do_color
? 0x7700 : 0x0800;
2300 charcnt
= FNTCHARCNT(vc
->vc_font
.data
);
2303 vc
->vc_complement_mask
<<= 1;
2305 updatescrollmode(p
, info
, vc
);
2307 switch (p
->scrollmode
) {
2308 case SCROLL_WRAP_MOVE
:
2309 scrollback_phys_max
= p
->vrows
- vc
->vc_rows
;
2311 case SCROLL_PAN_MOVE
:
2312 case SCROLL_PAN_REDRAW
:
2313 scrollback_phys_max
= p
->vrows
- 2 * vc
->vc_rows
;
2314 if (scrollback_phys_max
< 0)
2315 scrollback_phys_max
= 0;
2318 scrollback_phys_max
= 0;
2323 scrollback_current
= 0;
2325 if (!fbcon_is_inactive(vc
, info
)) {
2326 ops
->var
.xoffset
= ops
->var
.yoffset
= p
->yscroll
= 0;
2327 ops
->update_start(info
);
2330 fbcon_set_palette(vc
, color_table
);
2331 fbcon_clear_margins(vc
, 0);
2333 if (logo_shown
== FBCON_LOGO_DRAW
) {
2335 logo_shown
= fg_console
;
2336 /* This is protected above by initmem_freed */
2337 fb_show_logo(info
, ops
->rotate
);
2339 vc
->vc_origin
+ vc
->vc_size_row
* vc
->vc_top
,
2340 vc
->vc_size_row
* (vc
->vc_bottom
-
2347 static void fbcon_generic_blank(struct vc_data
*vc
, struct fb_info
*info
,
2350 struct fb_event event
;
2353 unsigned short charmask
= vc
->vc_hi_font_mask
?
2355 unsigned short oldc
;
2357 oldc
= vc
->vc_video_erase_char
;
2358 vc
->vc_video_erase_char
&= charmask
;
2359 fbcon_clear(vc
, 0, 0, vc
->vc_rows
, vc
->vc_cols
);
2360 vc
->vc_video_erase_char
= oldc
;
2365 event
.data
= &blank
;
2366 fb_notifier_call_chain(FB_EVENT_CONBLANK
, &event
);
2369 static int fbcon_blank(struct vc_data
*vc
, int blank
, int mode_switch
)
2371 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2372 struct fbcon_ops
*ops
= info
->fbcon_par
;
2375 struct fb_var_screeninfo var
= info
->var
;
2380 if (info
->fbops
->fb_save_state
)
2381 info
->fbops
->fb_save_state(info
);
2382 var
.activate
= FB_ACTIVATE_NOW
| FB_ACTIVATE_FORCE
;
2383 fb_set_var(info
, &var
);
2385 ops
->var
= info
->var
;
2386 } else if (info
->fbops
->fb_restore_state
)
2387 info
->fbops
->fb_restore_state(info
);
2390 if (!fbcon_is_inactive(vc
, info
)) {
2391 if (ops
->blank_state
!= blank
) {
2394 ops
->blank_state
= blank
;
2395 fbcon_cursor(vc
, blank
? CM_ERASE
: CM_DRAW
);
2396 ops
->cursor_flash
= (!blank
);
2398 if (info
->fbops
->fb_blank
)
2399 ret
= info
->fbops
->fb_blank(blank
, info
);
2401 fbcon_generic_blank(vc
, info
, blank
);
2408 if (mode_switch
|| fbcon_is_inactive(vc
, info
) ||
2409 ops
->blank_state
!= FB_BLANK_UNBLANK
)
2410 fbcon_del_cursor_timer(info
);
2412 fbcon_add_cursor_timer(info
);
2417 static int fbcon_get_font(struct vc_data
*vc
, struct console_font
*font
)
2419 u8
*fontdata
= vc
->vc_font
.data
;
2420 u8
*data
= font
->data
;
2423 font
->width
= vc
->vc_font
.width
;
2424 font
->height
= vc
->vc_font
.height
;
2425 font
->charcount
= vc
->vc_hi_font_mask
? 512 : 256;
2429 if (font
->width
<= 8) {
2430 j
= vc
->vc_font
.height
;
2431 for (i
= 0; i
< font
->charcount
; i
++) {
2432 memcpy(data
, fontdata
, j
);
2433 memset(data
+ j
, 0, 32 - j
);
2437 } else if (font
->width
<= 16) {
2438 j
= vc
->vc_font
.height
* 2;
2439 for (i
= 0; i
< font
->charcount
; i
++) {
2440 memcpy(data
, fontdata
, j
);
2441 memset(data
+ j
, 0, 64 - j
);
2445 } else if (font
->width
<= 24) {
2446 for (i
= 0; i
< font
->charcount
; i
++) {
2447 for (j
= 0; j
< vc
->vc_font
.height
; j
++) {
2448 *data
++ = fontdata
[0];
2449 *data
++ = fontdata
[1];
2450 *data
++ = fontdata
[2];
2451 fontdata
+= sizeof(u32
);
2453 memset(data
, 0, 3 * (32 - j
));
2454 data
+= 3 * (32 - j
);
2457 j
= vc
->vc_font
.height
* 4;
2458 for (i
= 0; i
< font
->charcount
; i
++) {
2459 memcpy(data
, fontdata
, j
);
2460 memset(data
+ j
, 0, 128 - j
);
2468 static int fbcon_do_set_font(struct vc_data
*vc
, int w
, int h
,
2469 const u8
* data
, int userfont
)
2471 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2472 struct fbcon_ops
*ops
= info
->fbcon_par
;
2473 struct display
*p
= &fb_display
[vc
->vc_num
];
2476 char *old_data
= NULL
;
2478 if (CON_IS_VISIBLE(vc
) && softback_lines
)
2479 fbcon_set_origin(vc
);
2481 resize
= (w
!= vc
->vc_font
.width
) || (h
!= vc
->vc_font
.height
);
2483 old_data
= vc
->vc_font
.data
;
2485 cnt
= FNTCHARCNT(data
);
2488 vc
->vc_font
.data
= (void *)(p
->fontdata
= data
);
2489 if ((p
->userfont
= userfont
))
2491 vc
->vc_font
.width
= w
;
2492 vc
->vc_font
.height
= h
;
2493 if (vc
->vc_hi_font_mask
&& cnt
== 256) {
2494 vc
->vc_hi_font_mask
= 0;
2495 if (vc
->vc_can_do_color
) {
2496 vc
->vc_complement_mask
>>= 1;
2497 vc
->vc_s_complement_mask
>>= 1;
2500 /* ++Edmund: reorder the attribute bits */
2501 if (vc
->vc_can_do_color
) {
2502 unsigned short *cp
=
2503 (unsigned short *) vc
->vc_origin
;
2504 int count
= vc
->vc_screenbuf_size
/ 2;
2506 for (; count
> 0; count
--, cp
++) {
2508 scr_writew(((c
& 0xfe00) >> 1) |
2511 c
= vc
->vc_video_erase_char
;
2512 vc
->vc_video_erase_char
=
2513 ((c
& 0xfe00) >> 1) | (c
& 0xff);
2516 } else if (!vc
->vc_hi_font_mask
&& cnt
== 512) {
2517 vc
->vc_hi_font_mask
= 0x100;
2518 if (vc
->vc_can_do_color
) {
2519 vc
->vc_complement_mask
<<= 1;
2520 vc
->vc_s_complement_mask
<<= 1;
2523 /* ++Edmund: reorder the attribute bits */
2525 unsigned short *cp
=
2526 (unsigned short *) vc
->vc_origin
;
2527 int count
= vc
->vc_screenbuf_size
/ 2;
2529 for (; count
> 0; count
--, cp
++) {
2530 unsigned short newc
;
2532 if (vc
->vc_can_do_color
)
2534 ((c
& 0xff00) << 1) | (c
&
2538 scr_writew(newc
, cp
);
2540 c
= vc
->vc_video_erase_char
;
2541 if (vc
->vc_can_do_color
) {
2542 vc
->vc_video_erase_char
=
2543 ((c
& 0xff00) << 1) | (c
& 0xff);
2546 vc
->vc_video_erase_char
= c
& ~0x100;
2554 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
2555 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2558 vc_resize(vc
, cols
, rows
);
2559 if (CON_IS_VISIBLE(vc
) && softback_buf
)
2560 fbcon_update_softback(vc
);
2561 } else if (CON_IS_VISIBLE(vc
)
2562 && vc
->vc_mode
== KD_TEXT
) {
2563 fbcon_clear_margins(vc
, 0);
2567 if (old_data
&& (--REFCOUNT(old_data
) == 0))
2568 kfree(old_data
- FONT_EXTRA_WORDS
* sizeof(int));
2572 static int fbcon_copy_font(struct vc_data
*vc
, int con
)
2574 struct display
*od
= &fb_display
[con
];
2575 struct console_font
*f
= &vc
->vc_font
;
2577 if (od
->fontdata
== f
->data
)
2578 return 0; /* already the same font... */
2579 return fbcon_do_set_font(vc
, f
->width
, f
->height
, od
->fontdata
, od
->userfont
);
2583 * User asked to set font; we are guaranteed that
2584 * a) width and height are in range 1..32
2585 * b) charcount does not exceed 512
2586 * but lets not assume that, since someone might someday want to use larger
2587 * fonts. And charcount of 512 is small for unicode support.
2589 * However, user space gives the font in 32 rows , regardless of
2590 * actual font height. So a new API is needed if support for larger fonts
2591 * is ever implemented.
2594 static int fbcon_set_font(struct vc_data
*vc
, struct console_font
*font
, unsigned flags
)
2596 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2597 unsigned charcount
= font
->charcount
;
2598 int w
= font
->width
;
2599 int h
= font
->height
;
2602 u8
*new_data
, *data
= font
->data
;
2603 int pitch
= (font
->width
+7) >> 3;
2605 /* Is there a reason why fbconsole couldn't handle any charcount >256?
2606 * If not this check should be changed to charcount < 256 */
2607 if (charcount
!= 256 && charcount
!= 512)
2610 /* Make sure drawing engine can handle the font */
2611 if (!(info
->pixmap
.blit_x
& (1 << (font
->width
- 1))) ||
2612 !(info
->pixmap
.blit_y
& (1 << (font
->height
- 1))))
2615 /* Make sure driver can handle the font length */
2616 if (fbcon_invalid_charcount(info
, charcount
))
2619 size
= h
* pitch
* charcount
;
2621 new_data
= kmalloc(FONT_EXTRA_WORDS
* sizeof(int) + size
, GFP_USER
);
2626 new_data
+= FONT_EXTRA_WORDS
* sizeof(int);
2627 FNTSIZE(new_data
) = size
;
2628 FNTCHARCNT(new_data
) = charcount
;
2629 REFCOUNT(new_data
) = 0; /* usage counter */
2630 for (i
=0; i
< charcount
; i
++) {
2631 memcpy(new_data
+ i
*h
*pitch
, data
+ i
*32*pitch
, h
*pitch
);
2634 /* Since linux has a nice crc32 function use it for counting font
2636 csum
= crc32(0, new_data
, size
);
2638 FNTSUM(new_data
) = csum
;
2639 /* Check if the same font is on some other console already */
2640 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2641 struct vc_data
*tmp
= vc_cons
[i
].d
;
2643 if (fb_display
[i
].userfont
&&
2644 fb_display
[i
].fontdata
&&
2645 FNTSUM(fb_display
[i
].fontdata
) == csum
&&
2646 FNTSIZE(fb_display
[i
].fontdata
) == size
&&
2647 tmp
->vc_font
.width
== w
&&
2648 !memcmp(fb_display
[i
].fontdata
, new_data
, size
)) {
2649 kfree(new_data
- FONT_EXTRA_WORDS
* sizeof(int));
2650 new_data
= (u8
*)fb_display
[i
].fontdata
;
2654 return fbcon_do_set_font(vc
, font
->width
, font
->height
, new_data
, 1);
2657 static int fbcon_set_def_font(struct vc_data
*vc
, struct console_font
*font
, char *name
)
2659 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2660 const struct font_desc
*f
;
2663 f
= get_default_font(info
->var
.xres
, info
->var
.yres
,
2664 info
->pixmap
.blit_x
, info
->pixmap
.blit_y
);
2665 else if (!(f
= find_font(name
)))
2668 font
->width
= f
->width
;
2669 font
->height
= f
->height
;
2670 return fbcon_do_set_font(vc
, f
->width
, f
->height
, f
->data
, 0);
2673 static u16 palette_red
[16];
2674 static u16 palette_green
[16];
2675 static u16 palette_blue
[16];
2677 static struct fb_cmap palette_cmap
= {
2678 0, 16, palette_red
, palette_green
, palette_blue
, NULL
2681 static int fbcon_set_palette(struct vc_data
*vc
, unsigned char *table
)
2683 struct fb_info
*info
= registered_fb
[con2fb_map
[vc
->vc_num
]];
2687 if (fbcon_is_inactive(vc
, info
))
2690 if (!CON_IS_VISIBLE(vc
))
2693 depth
= fb_get_color_depth(&info
->var
, &info
->fix
);
2695 for (i
= j
= 0; i
< 16; i
++) {
2697 val
= vc
->vc_palette
[j
++];
2698 palette_red
[k
] = (val
<< 8) | val
;
2699 val
= vc
->vc_palette
[j
++];
2700 palette_green
[k
] = (val
<< 8) | val
;
2701 val
= vc
->vc_palette
[j
++];
2702 palette_blue
[k
] = (val
<< 8) | val
;
2704 palette_cmap
.len
= 16;
2705 palette_cmap
.start
= 0;
2707 * If framebuffer is capable of less than 16 colors,
2708 * use default palette of fbcon.
2711 fb_copy_cmap(fb_default_cmap(1 << depth
), &palette_cmap
);
2713 return fb_set_cmap(&palette_cmap
, info
);
2716 static u16
*fbcon_screen_pos(struct vc_data
*vc
, int offset
)
2721 if (vc
->vc_num
!= fg_console
|| !softback_lines
)
2722 return (u16
*) (vc
->vc_origin
+ offset
);
2723 line
= offset
/ vc
->vc_size_row
;
2724 if (line
>= softback_lines
)
2725 return (u16
*) (vc
->vc_origin
+ offset
-
2726 softback_lines
* vc
->vc_size_row
);
2727 p
= softback_curr
+ offset
;
2728 if (p
>= softback_end
)
2729 p
+= softback_buf
- softback_end
;
2733 static unsigned long fbcon_getxy(struct vc_data
*vc
, unsigned long pos
,
2739 if (pos
>= vc
->vc_origin
&& pos
< vc
->vc_scr_end
) {
2740 unsigned long offset
= (pos
- vc
->vc_origin
) / 2;
2742 x
= offset
% vc
->vc_cols
;
2743 y
= offset
/ vc
->vc_cols
;
2744 if (vc
->vc_num
== fg_console
)
2745 y
+= softback_lines
;
2746 ret
= pos
+ (vc
->vc_cols
- x
) * 2;
2747 } else if (vc
->vc_num
== fg_console
&& softback_lines
) {
2748 unsigned long offset
= pos
- softback_curr
;
2750 if (pos
< softback_curr
)
2751 offset
+= softback_end
- softback_buf
;
2753 x
= offset
% vc
->vc_cols
;
2754 y
= offset
/ vc
->vc_cols
;
2755 ret
= pos
+ (vc
->vc_cols
- x
) * 2;
2756 if (ret
== softback_end
)
2758 if (ret
== softback_in
)
2759 ret
= vc
->vc_origin
;
2761 /* Should not happen */
2763 ret
= vc
->vc_origin
;
2772 /* As we might be inside of softback, we may work with non-contiguous buffer,
2773 that's why we have to use a separate routine. */
2774 static void fbcon_invert_region(struct vc_data
*vc
, u16
* p
, int cnt
)
2777 u16 a
= scr_readw(p
);
2778 if (!vc
->vc_can_do_color
)
2780 else if (vc
->vc_hi_font_mask
== 0x100)
2781 a
= ((a
) & 0x11ff) | (((a
) & 0xe000) >> 4) |
2782 (((a
) & 0x0e00) << 4);
2784 a
= ((a
) & 0x88ff) | (((a
) & 0x7000) >> 4) |
2785 (((a
) & 0x0700) << 4);
2787 if (p
== (u16
*) softback_end
)
2788 p
= (u16
*) softback_buf
;
2789 if (p
== (u16
*) softback_in
)
2790 p
= (u16
*) vc
->vc_origin
;
2794 static int fbcon_scrolldelta(struct vc_data
*vc
, int lines
)
2796 struct fb_info
*info
= registered_fb
[con2fb_map
[fg_console
]];
2797 struct fbcon_ops
*ops
= info
->fbcon_par
;
2798 struct display
*disp
= &fb_display
[fg_console
];
2799 int offset
, limit
, scrollback_old
;
2802 if (vc
->vc_num
!= fg_console
)
2804 if (vc
->vc_mode
!= KD_TEXT
|| !lines
)
2806 if (logo_shown
>= 0) {
2807 struct vc_data
*conp2
= vc_cons
[logo_shown
].d
;
2809 if (conp2
->vc_top
== logo_lines
2810 && conp2
->vc_bottom
== conp2
->vc_rows
)
2812 if (logo_shown
== vc
->vc_num
) {
2818 logo_lines
* vc
->vc_size_row
;
2819 for (i
= 0; i
< logo_lines
; i
++) {
2820 if (p
== softback_top
)
2822 if (p
== softback_buf
)
2824 p
-= vc
->vc_size_row
;
2825 q
-= vc
->vc_size_row
;
2826 scr_memcpyw((u16
*) q
, (u16
*) p
,
2829 softback_in
= softback_curr
= p
;
2830 update_region(vc
, vc
->vc_origin
,
2831 logo_lines
* vc
->vc_cols
);
2833 logo_shown
= FBCON_LOGO_CANSHOW
;
2835 fbcon_cursor(vc
, CM_ERASE
| CM_SOFTBACK
);
2836 fbcon_redraw_softback(vc
, disp
, lines
);
2837 fbcon_cursor(vc
, CM_DRAW
| CM_SOFTBACK
);
2841 if (!scrollback_phys_max
)
2844 scrollback_old
= scrollback_current
;
2845 scrollback_current
-= lines
;
2846 if (scrollback_current
< 0)
2847 scrollback_current
= 0;
2848 else if (scrollback_current
> scrollback_max
)
2849 scrollback_current
= scrollback_max
;
2850 if (scrollback_current
== scrollback_old
)
2853 if (fbcon_is_inactive(vc
, info
))
2856 fbcon_cursor(vc
, CM_ERASE
);
2858 offset
= disp
->yscroll
- scrollback_current
;
2859 limit
= disp
->vrows
;
2860 switch (disp
->scrollmode
) {
2861 case SCROLL_WRAP_MOVE
:
2862 info
->var
.vmode
|= FB_VMODE_YWRAP
;
2864 case SCROLL_PAN_MOVE
:
2865 case SCROLL_PAN_REDRAW
:
2866 limit
-= vc
->vc_rows
;
2867 info
->var
.vmode
&= ~FB_VMODE_YWRAP
;
2872 else if (offset
>= limit
)
2875 ops
->var
.xoffset
= 0;
2876 ops
->var
.yoffset
= offset
* vc
->vc_font
.height
;
2877 ops
->update_start(info
);
2879 if (!scrollback_current
)
2880 fbcon_cursor(vc
, CM_DRAW
);
2884 static int fbcon_set_origin(struct vc_data
*vc
)
2887 fbcon_scrolldelta(vc
, softback_lines
);
2891 static void fbcon_suspended(struct fb_info
*info
)
2893 struct vc_data
*vc
= NULL
;
2894 struct fbcon_ops
*ops
= info
->fbcon_par
;
2896 if (!ops
|| ops
->currcon
< 0)
2898 vc
= vc_cons
[ops
->currcon
].d
;
2900 /* Clear cursor, restore saved data */
2901 fbcon_cursor(vc
, CM_ERASE
);
2904 static void fbcon_resumed(struct fb_info
*info
)
2907 struct fbcon_ops
*ops
= info
->fbcon_par
;
2909 if (!ops
|| ops
->currcon
< 0)
2911 vc
= vc_cons
[ops
->currcon
].d
;
2916 static void fbcon_modechanged(struct fb_info
*info
)
2918 struct fbcon_ops
*ops
= info
->fbcon_par
;
2923 if (!ops
|| ops
->currcon
< 0)
2925 vc
= vc_cons
[ops
->currcon
].d
;
2926 if (vc
->vc_mode
!= KD_TEXT
||
2927 registered_fb
[con2fb_map
[ops
->currcon
]] != info
)
2930 p
= &fb_display
[vc
->vc_num
];
2931 set_blitting_type(vc
, info
);
2933 if (CON_IS_VISIBLE(vc
)) {
2934 var_to_display(p
, &info
->var
, info
);
2935 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
2936 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2937 cols
/= vc
->vc_font
.width
;
2938 rows
/= vc
->vc_font
.height
;
2939 vc_resize(vc
, cols
, rows
);
2940 updatescrollmode(p
, info
, vc
);
2942 scrollback_current
= 0;
2944 if (!fbcon_is_inactive(vc
, info
)) {
2945 ops
->var
.xoffset
= ops
->var
.yoffset
= p
->yscroll
= 0;
2946 ops
->update_start(info
);
2949 fbcon_set_palette(vc
, color_table
);
2952 fbcon_update_softback(vc
);
2956 static void fbcon_set_all_vcs(struct fb_info
*info
)
2958 struct fbcon_ops
*ops
= info
->fbcon_par
;
2961 int i
, rows
, cols
, fg
= -1;
2963 if (!ops
|| ops
->currcon
< 0)
2966 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
2968 if (!vc
|| vc
->vc_mode
!= KD_TEXT
||
2969 registered_fb
[con2fb_map
[i
]] != info
)
2972 if (CON_IS_VISIBLE(vc
)) {
2977 p
= &fb_display
[vc
->vc_num
];
2978 set_blitting_type(vc
, info
);
2979 var_to_display(p
, &info
->var
, info
);
2980 cols
= FBCON_SWAP(ops
->rotate
, info
->var
.xres
, info
->var
.yres
);
2981 rows
= FBCON_SWAP(ops
->rotate
, info
->var
.yres
, info
->var
.xres
);
2982 cols
/= vc
->vc_font
.width
;
2983 rows
/= vc
->vc_font
.height
;
2984 vc_resize(vc
, cols
, rows
);
2988 fbcon_modechanged(info
);
2991 static int fbcon_mode_deleted(struct fb_info
*info
,
2992 struct fb_videomode
*mode
)
2994 struct fb_info
*fb_info
;
2996 int i
, j
, found
= 0;
2998 /* before deletion, ensure that mode is not in use */
2999 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3003 fb_info
= registered_fb
[j
];
3004 if (fb_info
!= info
)
3009 if (fb_mode_is_equal(p
->mode
, mode
)) {
3017 #ifdef CONFIG_VT_HW_CONSOLE_BINDING
3018 static int fbcon_unbind(void)
3022 ret
= unbind_con_driver(&fb_con
, first_fb_vc
, last_fb_vc
,
3027 static inline int fbcon_unbind(void)
3031 #endif /* CONFIG_VT_HW_CONSOLE_BINDING */
3033 static int fbcon_fb_unbind(int idx
)
3035 int i
, new_idx
= -1, ret
= 0;
3037 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3038 if (con2fb_map
[i
] != idx
&&
3039 con2fb_map
[i
] != -1) {
3045 if (new_idx
!= -1) {
3046 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3047 if (con2fb_map
[i
] == idx
)
3048 set_con2fb_map(i
, new_idx
, 0);
3051 ret
= fbcon_unbind();
3056 static int fbcon_fb_unregistered(struct fb_info
*info
)
3058 int i
, idx
= info
->node
;
3060 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3061 if (con2fb_map
[i
] == idx
)
3065 if (idx
== info_idx
) {
3068 for (i
= 0; i
< FB_MAX
; i
++) {
3069 if (registered_fb
[i
] != NULL
) {
3076 if (info_idx
!= -1) {
3077 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3078 if (con2fb_map
[i
] == -1)
3079 con2fb_map
[i
] = info_idx
;
3083 if (!num_registered_fb
)
3084 unregister_con_driver(&fb_con
);
3087 if (primary_device
== idx
)
3088 primary_device
= -1;
3093 #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
3094 static void fbcon_select_primary(struct fb_info
*info
)
3096 if (!map_override
&& primary_device
== -1 &&
3097 fb_is_primary_device(info
)) {
3100 printk(KERN_INFO
"fbcon: %s (fb%i) is primary device\n",
3101 info
->fix
.id
, info
->node
);
3102 primary_device
= info
->node
;
3104 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++)
3105 con2fb_map_boot
[i
] = primary_device
;
3107 if (con_is_bound(&fb_con
)) {
3108 printk(KERN_INFO
"fbcon: Remapping primary device, "
3109 "fb%i, to tty %i-%i\n", info
->node
,
3110 first_fb_vc
+ 1, last_fb_vc
+ 1);
3111 info_idx
= primary_device
;
3117 static inline void fbcon_select_primary(struct fb_info
*info
)
3121 #endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */
3123 static int fbcon_fb_registered(struct fb_info
*info
)
3125 int ret
= 0, i
, idx
= info
->node
;
3127 fbcon_select_primary(info
);
3129 if (info_idx
== -1) {
3130 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3131 if (con2fb_map_boot
[i
] == idx
) {
3138 ret
= fbcon_takeover(1);
3140 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3141 if (con2fb_map_boot
[i
] == idx
)
3142 set_con2fb_map(i
, idx
, 0);
3149 static void fbcon_fb_blanked(struct fb_info
*info
, int blank
)
3151 struct fbcon_ops
*ops
= info
->fbcon_par
;
3154 if (!ops
|| ops
->currcon
< 0)
3157 vc
= vc_cons
[ops
->currcon
].d
;
3158 if (vc
->vc_mode
!= KD_TEXT
||
3159 registered_fb
[con2fb_map
[ops
->currcon
]] != info
)
3162 if (CON_IS_VISIBLE(vc
)) {
3166 do_unblank_screen(0);
3168 ops
->blank_state
= blank
;
3171 static void fbcon_new_modelist(struct fb_info
*info
)
3175 struct fb_var_screeninfo var
;
3176 const struct fb_videomode
*mode
;
3178 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3179 if (registered_fb
[con2fb_map
[i
]] != info
)
3181 if (!fb_display
[i
].mode
)
3184 display_to_var(&var
, &fb_display
[i
]);
3185 mode
= fb_find_nearest_mode(fb_display
[i
].mode
,
3187 fb_videomode_to_var(&var
, mode
);
3188 fbcon_set_disp(info
, &var
, vc
->vc_num
);
3192 static void fbcon_get_requirement(struct fb_info
*info
,
3193 struct fb_blit_caps
*caps
)
3201 for (i
= first_fb_vc
; i
<= last_fb_vc
; i
++) {
3203 if (vc
&& vc
->vc_mode
== KD_TEXT
&&
3204 info
->node
== con2fb_map
[i
]) {
3206 caps
->x
|= 1 << (vc
->vc_font
.width
- 1);
3207 caps
->y
|= 1 << (vc
->vc_font
.height
- 1);
3208 charcnt
= (p
->userfont
) ?
3209 FNTCHARCNT(p
->fontdata
) : 256;
3210 if (caps
->len
< charcnt
)
3211 caps
->len
= charcnt
;
3215 vc
= vc_cons
[fg_console
].d
;
3217 if (vc
&& vc
->vc_mode
== KD_TEXT
&&
3218 info
->node
== con2fb_map
[fg_console
]) {
3219 p
= &fb_display
[fg_console
];
3220 caps
->x
= 1 << (vc
->vc_font
.width
- 1);
3221 caps
->y
= 1 << (vc
->vc_font
.height
- 1);
3222 caps
->len
= (p
->userfont
) ?
3223 FNTCHARCNT(p
->fontdata
) : 256;
3228 static int fbcon_event_notify(struct notifier_block
*self
,
3229 unsigned long action
, void *data
)
3231 struct fb_event
*event
= data
;
3232 struct fb_info
*info
= event
->info
;
3233 struct fb_videomode
*mode
;
3234 struct fb_con2fbmap
*con2fb
;
3235 struct fb_blit_caps
*caps
;
3239 * ignore all events except driver registration and deregistration
3240 * if fbcon is not active
3242 if (fbcon_has_exited
&& !(action
== FB_EVENT_FB_REGISTERED
||
3243 action
== FB_EVENT_FB_UNREGISTERED
))
3247 case FB_EVENT_SUSPEND
:
3248 fbcon_suspended(info
);
3250 case FB_EVENT_RESUME
:
3251 fbcon_resumed(info
);
3253 case FB_EVENT_MODE_CHANGE
:
3254 fbcon_modechanged(info
);
3256 case FB_EVENT_MODE_CHANGE_ALL
:
3257 fbcon_set_all_vcs(info
);
3259 case FB_EVENT_MODE_DELETE
:
3261 ret
= fbcon_mode_deleted(info
, mode
);
3263 case FB_EVENT_FB_UNBIND
:
3264 ret
= fbcon_fb_unbind(info
->node
);
3266 case FB_EVENT_FB_REGISTERED
:
3267 ret
= fbcon_fb_registered(info
);
3269 case FB_EVENT_FB_UNREGISTERED
:
3270 ret
= fbcon_fb_unregistered(info
);
3272 case FB_EVENT_SET_CONSOLE_MAP
:
3273 con2fb
= event
->data
;
3274 ret
= set_con2fb_map(con2fb
->console
- 1,
3275 con2fb
->framebuffer
, 1);
3277 case FB_EVENT_GET_CONSOLE_MAP
:
3278 con2fb
= event
->data
;
3279 con2fb
->framebuffer
= con2fb_map
[con2fb
->console
- 1];
3281 case FB_EVENT_BLANK
:
3282 fbcon_fb_blanked(info
, *(int *)event
->data
);
3284 case FB_EVENT_NEW_MODELIST
:
3285 fbcon_new_modelist(info
);
3287 case FB_EVENT_GET_REQ
:
3289 fbcon_get_requirement(info
, caps
);
3298 * The console `switch' structure for the frame buffer based console
3301 static const struct consw fb_con
= {
3302 .owner
= THIS_MODULE
,
3303 .con_startup
= fbcon_startup
,
3304 .con_init
= fbcon_init
,
3305 .con_deinit
= fbcon_deinit
,
3306 .con_clear
= fbcon_clear
,
3307 .con_putc
= fbcon_putc
,
3308 .con_putcs
= fbcon_putcs
,
3309 .con_cursor
= fbcon_cursor
,
3310 .con_scroll
= fbcon_scroll
,
3311 .con_bmove
= fbcon_bmove
,
3312 .con_switch
= fbcon_switch
,
3313 .con_blank
= fbcon_blank
,
3314 .con_font_set
= fbcon_set_font
,
3315 .con_font_get
= fbcon_get_font
,
3316 .con_font_default
= fbcon_set_def_font
,
3317 .con_font_copy
= fbcon_copy_font
,
3318 .con_set_palette
= fbcon_set_palette
,
3319 .con_scrolldelta
= fbcon_scrolldelta
,
3320 .con_set_origin
= fbcon_set_origin
,
3321 .con_invert_region
= fbcon_invert_region
,
3322 .con_screen_pos
= fbcon_screen_pos
,
3323 .con_getxy
= fbcon_getxy
,
3324 .con_resize
= fbcon_resize
,
3327 static struct notifier_block fbcon_event_notifier
= {
3328 .notifier_call
= fbcon_event_notify
,
3331 static ssize_t
store_rotate(struct device
*device
,
3332 struct device_attribute
*attr
, const char *buf
,
3335 struct fb_info
*info
;
3339 if (fbcon_has_exited
)
3342 acquire_console_sem();
3343 idx
= con2fb_map
[fg_console
];
3345 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3348 info
= registered_fb
[idx
];
3349 rotate
= simple_strtoul(buf
, last
, 0);
3350 fbcon_rotate(info
, rotate
);
3352 release_console_sem();
3356 static ssize_t
store_rotate_all(struct device
*device
,
3357 struct device_attribute
*attr
,const char *buf
,
3360 struct fb_info
*info
;
3364 if (fbcon_has_exited
)
3367 acquire_console_sem();
3368 idx
= con2fb_map
[fg_console
];
3370 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3373 info
= registered_fb
[idx
];
3374 rotate
= simple_strtoul(buf
, last
, 0);
3375 fbcon_rotate_all(info
, rotate
);
3377 release_console_sem();
3381 static ssize_t
show_rotate(struct device
*device
,
3382 struct device_attribute
*attr
,char *buf
)
3384 struct fb_info
*info
;
3385 int rotate
= 0, idx
;
3387 if (fbcon_has_exited
)
3390 acquire_console_sem();
3391 idx
= con2fb_map
[fg_console
];
3393 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3396 info
= registered_fb
[idx
];
3397 rotate
= fbcon_get_rotate(info
);
3399 release_console_sem();
3400 return snprintf(buf
, PAGE_SIZE
, "%d\n", rotate
);
3403 static ssize_t
show_cursor_blink(struct device
*device
,
3404 struct device_attribute
*attr
, char *buf
)
3406 struct fb_info
*info
;
3407 struct fbcon_ops
*ops
;
3408 int idx
, blink
= -1;
3410 if (fbcon_has_exited
)
3413 acquire_console_sem();
3414 idx
= con2fb_map
[fg_console
];
3416 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3419 info
= registered_fb
[idx
];
3420 ops
= info
->fbcon_par
;
3425 blink
= (ops
->flags
& FBCON_FLAGS_CURSOR_TIMER
) ? 1 : 0;
3427 release_console_sem();
3428 return snprintf(buf
, PAGE_SIZE
, "%d\n", blink
);
3431 static ssize_t
store_cursor_blink(struct device
*device
,
3432 struct device_attribute
*attr
,
3433 const char *buf
, size_t count
)
3435 struct fb_info
*info
;
3439 if (fbcon_has_exited
)
3442 acquire_console_sem();
3443 idx
= con2fb_map
[fg_console
];
3445 if (idx
== -1 || registered_fb
[idx
] == NULL
)
3448 info
= registered_fb
[idx
];
3450 if (!info
->fbcon_par
)
3453 blink
= simple_strtoul(buf
, last
, 0);
3456 fbcon_cursor_noblink
= 0;
3457 fbcon_add_cursor_timer(info
);
3459 fbcon_cursor_noblink
= 1;
3460 fbcon_del_cursor_timer(info
);
3464 release_console_sem();
3468 static struct device_attribute device_attrs
[] = {
3469 __ATTR(rotate
, S_IRUGO
|S_IWUSR
, show_rotate
, store_rotate
),
3470 __ATTR(rotate_all
, S_IWUSR
, NULL
, store_rotate_all
),
3471 __ATTR(cursor_blink
, S_IRUGO
|S_IWUSR
, show_cursor_blink
,
3472 store_cursor_blink
),
3475 static int fbcon_init_device(void)
3479 fbcon_has_sysfs
= 1;
3481 for (i
= 0; i
< ARRAY_SIZE(device_attrs
); i
++) {
3482 error
= device_create_file(fbcon_device
, &device_attrs
[i
]);
3490 device_remove_file(fbcon_device
, &device_attrs
[i
]);
3492 fbcon_has_sysfs
= 0;
3498 static void fbcon_start(void)
3500 if (num_registered_fb
) {
3503 acquire_console_sem();
3505 for (i
= 0; i
< FB_MAX
; i
++) {
3506 if (registered_fb
[i
] != NULL
) {
3512 release_console_sem();
3517 static void fbcon_exit(void)
3519 struct fb_info
*info
;
3522 if (fbcon_has_exited
)
3526 free_irq(IRQ_AUTO_4
, fb_vbl_handler
);
3529 if (MACH_IS_MAC
&& vbl_detected
)
3530 free_irq(IRQ_MAC_VBL
, fb_vbl_handler
);
3533 kfree((void *)softback_buf
);
3536 for (i
= 0; i
< FB_MAX
; i
++) {
3538 info
= registered_fb
[i
];
3543 for (j
= first_fb_vc
; j
<= last_fb_vc
; j
++) {
3544 if (con2fb_map
[j
] == i
)
3549 if (info
->fbops
->fb_release
)
3550 info
->fbops
->fb_release(info
, 0);
3551 module_put(info
->fbops
->owner
);
3553 if (info
->fbcon_par
) {
3554 struct fbcon_ops
*ops
= info
->fbcon_par
;
3556 fbcon_del_cursor_timer(info
);
3557 kfree(ops
->cursor_src
);
3558 kfree(info
->fbcon_par
);
3559 info
->fbcon_par
= NULL
;
3562 if (info
->queue
.func
== fb_flashcursor
)
3563 info
->queue
.func
= NULL
;
3567 fbcon_has_exited
= 1;
3570 static int __init
fb_console_init(void)
3574 acquire_console_sem();
3575 fb_register_client(&fbcon_event_notifier
);
3576 fbcon_device
= device_create(fb_class
, NULL
, MKDEV(0, 0), NULL
,
3579 if (IS_ERR(fbcon_device
)) {
3580 printk(KERN_WARNING
"Unable to create device "
3581 "for fbcon; errno = %ld\n",
3582 PTR_ERR(fbcon_device
));
3583 fbcon_device
= NULL
;
3585 fbcon_init_device();
3587 for (i
= 0; i
< MAX_NR_CONSOLES
; i
++)
3590 release_console_sem();
3595 module_init(fb_console_init
);
3599 static void __exit
fbcon_deinit_device(void)
3603 if (fbcon_has_sysfs
) {
3604 for (i
= 0; i
< ARRAY_SIZE(device_attrs
); i
++)
3605 device_remove_file(fbcon_device
, &device_attrs
[i
]);
3607 fbcon_has_sysfs
= 0;
3611 static void __exit
fb_console_exit(void)
3613 acquire_console_sem();
3614 fb_unregister_client(&fbcon_event_notifier
);
3615 fbcon_deinit_device();
3616 device_destroy(fb_class
, MKDEV(0, 0));
3618 release_console_sem();
3619 unregister_con_driver(&fb_con
);
3622 module_exit(fb_console_exit
);
3626 MODULE_LICENSE("GPL");