Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/drivers/video/fbcon.c -- Low level frame buffer based console driver | |
3 | * | |
4 | * Copyright (C) 1995 Geert Uytterhoeven | |
5 | * | |
6 | * | |
7 | * This file is based on the original Amiga console driver (amicon.c): | |
8 | * | |
9 | * Copyright (C) 1993 Hamish Macdonald | |
10 | * Greg Harp | |
11 | * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk] | |
12 | * | |
13 | * with work by William Rucklidge (wjr@cs.cornell.edu) | |
14 | * Geert Uytterhoeven | |
15 | * Jes Sorensen (jds@kom.auc.dk) | |
16 | * Martin Apel | |
17 | * | |
18 | * and on the original Atari console driver (atacon.c): | |
19 | * | |
20 | * Copyright (C) 1993 Bjoern Brauel | |
21 | * Roman Hodek | |
22 | * | |
23 | * with work by Guenther Kelleter | |
24 | * Martin Schaller | |
25 | * Andreas Schwab | |
26 | * | |
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) | |
31 | * | |
32 | * Random hacking by Martin Mares <mj@ucw.cz> | |
33 | * | |
34 | * 2001 - Documented with DocBook | |
35 | * - Brad Douglas <brad@neruo.com> | |
36 | * | |
37 | * The low level operations for the various display memory organizations are | |
38 | * now in separate source files. | |
39 | * | |
40 | * Currently the following organizations are supported: | |
41 | * | |
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 | |
46 | * o mfb Monochrome | |
47 | * o vga VGA characters/attributes | |
48 | * | |
49 | * To do: | |
50 | * | |
51 | * - Implement 16 plane mode (iplan2p16) | |
52 | * | |
53 | * | |
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 | |
56 | * more details. | |
57 | */ | |
58 | ||
59 | #undef FBCONDEBUG | |
60 | ||
1da177e4 LT |
61 | #include <linux/module.h> |
62 | #include <linux/types.h> | |
1da177e4 LT |
63 | #include <linux/fs.h> |
64 | #include <linux/kernel.h> | |
65 | #include <linux/delay.h> /* MSch: for IRQ probe */ | |
1da177e4 LT |
66 | #include <linux/console.h> |
67 | #include <linux/string.h> | |
68 | #include <linux/kd.h> | |
69 | #include <linux/slab.h> | |
70 | #include <linux/fb.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 */ | |
623e71b0 | 78 | #include <asm/fb.h> |
1da177e4 LT |
79 | #include <asm/irq.h> |
80 | #include <asm/system.h> | |
1da177e4 LT |
81 | |
82 | #include "fbcon.h" | |
83 | ||
84 | #ifdef FBCONDEBUG | |
5ae12170 | 85 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) |
1da177e4 LT |
86 | #else |
87 | # define DPRINTK(fmt, args...) | |
88 | #endif | |
89 | ||
90 | enum { | |
91 | FBCON_LOGO_CANSHOW = -1, /* the logo can be shown */ | |
92 | FBCON_LOGO_DRAW = -2, /* draw the logo to a console */ | |
93 | FBCON_LOGO_DONTSHOW = -3 /* do not show the logo */ | |
94 | }; | |
95 | ||
ab767201 | 96 | static struct display fb_display[MAX_NR_CONSOLES]; |
e4fc2761 | 97 | |
1da177e4 LT |
98 | static signed char con2fb_map[MAX_NR_CONSOLES]; |
99 | static signed char con2fb_map_boot[MAX_NR_CONSOLES]; | |
49a1d28f | 100 | |
1da177e4 LT |
101 | static int logo_lines; |
102 | /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO | |
103 | enums. */ | |
104 | static int logo_shown = FBCON_LOGO_CANSHOW; | |
105 | /* Software scrollback */ | |
106 | static int fbcon_softback_size = 32768; | |
107 | static unsigned long softback_buf, softback_curr; | |
108 | static unsigned long softback_in; | |
109 | static unsigned long softback_top, softback_end; | |
110 | static int softback_lines; | |
111 | /* console mappings */ | |
112 | static int first_fb_vc; | |
113 | static int last_fb_vc = MAX_NR_CONSOLES - 1; | |
114 | static int fbcon_is_default = 1; | |
e614b18d | 115 | static int fbcon_has_exited; |
623e71b0 | 116 | static int primary_device = -1; |
2ddce3fd | 117 | static int fbcon_has_console_bind; |
4769a9a5 AD |
118 | |
119 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY | |
623e71b0 | 120 | static int map_override; |
e614b18d | 121 | |
4769a9a5 AD |
122 | static inline void fbcon_map_override(void) |
123 | { | |
124 | map_override = 1; | |
125 | } | |
126 | #else | |
127 | static inline void fbcon_map_override(void) | |
128 | { | |
129 | } | |
130 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY */ | |
131 | ||
1da177e4 LT |
132 | /* font data */ |
133 | static char fontname[40]; | |
134 | ||
135 | /* current fb_info */ | |
136 | static int info_idx = -1; | |
137 | ||
e4fc2761 | 138 | /* console rotation */ |
2428e59b | 139 | static int initial_rotation; |
0a727dea | 140 | static int fbcon_has_sysfs; |
e4fc2761 | 141 | |
1da177e4 LT |
142 | static const struct consw fb_con; |
143 | ||
144 | #define CM_SOFTBACK (8) | |
145 | ||
146 | #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) | |
147 | ||
1da177e4 LT |
148 | static int fbcon_set_origin(struct vc_data *); |
149 | ||
150 | #define CURSOR_DRAW_DELAY (1) | |
151 | ||
1da177e4 | 152 | static int vbl_cursor_cnt; |
acba9cd0 | 153 | static int fbcon_cursor_noblink; |
1da177e4 LT |
154 | |
155 | #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) | |
156 | ||
157 | /* | |
158 | * Interface used by the world | |
159 | */ | |
160 | ||
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, | |
165 | int width); | |
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, | |
172 | int count); | |
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); | |
179 | ||
180 | /* | |
181 | * Internal routines | |
182 | */ | |
1da177e4 LT |
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, | |
d1baa4ff | 190 | int unit); |
1da177e4 LT |
191 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, |
192 | int line, int count, int dy); | |
a812c94b AD |
193 | static void fbcon_modechanged(struct fb_info *info); |
194 | static void fbcon_set_all_vcs(struct fb_info *info); | |
5428b044 AD |
195 | static void fbcon_start(void); |
196 | static void fbcon_exit(void); | |
0c6c1ce0 | 197 | static struct device *fbcon_device; |
9a179176 | 198 | |
dbcbfe1e | 199 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION |
b73deed3 | 200 | static inline void fbcon_set_rotation(struct fb_info *info) |
dbcbfe1e AD |
201 | { |
202 | struct fbcon_ops *ops = info->fbcon_par; | |
203 | ||
204 | if (!(info->flags & FBINFO_MISC_TILEBLITTING) && | |
b73deed3 AD |
205 | ops->p->con_rotate < 4) |
206 | ops->rotate = ops->p->con_rotate; | |
dbcbfe1e AD |
207 | else |
208 | ops->rotate = 0; | |
209 | } | |
a812c94b AD |
210 | |
211 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
212 | { | |
213 | struct fbcon_ops *ops= info->fbcon_par; | |
214 | struct fb_info *fb_info; | |
215 | ||
216 | if (!ops || ops->currcon == -1) | |
217 | return; | |
218 | ||
219 | fb_info = registered_fb[con2fb_map[ops->currcon]]; | |
220 | ||
221 | if (info == fb_info) { | |
222 | struct display *p = &fb_display[ops->currcon]; | |
223 | ||
224 | if (rotate < 4) | |
225 | p->con_rotate = rotate; | |
226 | else | |
227 | p->con_rotate = 0; | |
228 | ||
229 | fbcon_modechanged(info); | |
230 | } | |
231 | } | |
232 | ||
233 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
234 | { | |
235 | struct fbcon_ops *ops = info->fbcon_par; | |
236 | struct vc_data *vc; | |
237 | struct display *p; | |
238 | int i; | |
239 | ||
240 | if (!ops || ops->currcon < 0 || rotate > 3) | |
241 | return; | |
242 | ||
e614b18d | 243 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
a812c94b AD |
244 | vc = vc_cons[i].d; |
245 | if (!vc || vc->vc_mode != KD_TEXT || | |
246 | registered_fb[con2fb_map[i]] != info) | |
247 | continue; | |
248 | ||
249 | p = &fb_display[vc->vc_num]; | |
250 | p->con_rotate = rotate; | |
251 | } | |
252 | ||
253 | fbcon_set_all_vcs(info); | |
254 | } | |
dbcbfe1e | 255 | #else |
b73deed3 | 256 | static inline void fbcon_set_rotation(struct fb_info *info) |
e4fc2761 AD |
257 | { |
258 | struct fbcon_ops *ops = info->fbcon_par; | |
259 | ||
260 | ops->rotate = FB_ROTATE_UR; | |
261 | } | |
a812c94b AD |
262 | |
263 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
264 | { | |
265 | return; | |
266 | } | |
267 | ||
268 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
269 | { | |
270 | return; | |
271 | } | |
dbcbfe1e | 272 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ |
e4fc2761 | 273 | |
a812c94b AD |
274 | static int fbcon_get_rotate(struct fb_info *info) |
275 | { | |
276 | struct fbcon_ops *ops = info->fbcon_par; | |
277 | ||
278 | return (ops) ? ops->rotate : 0; | |
279 | } | |
280 | ||
1da177e4 LT |
281 | static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) |
282 | { | |
283 | struct fbcon_ops *ops = info->fbcon_par; | |
284 | ||
285 | return (info->state != FBINFO_STATE_RUNNING || | |
8fd4bd22 JB |
286 | vc->vc_mode != KD_TEXT || ops->graphics) && |
287 | !vt_force_oops_output(vc); | |
1da177e4 LT |
288 | } |
289 | ||
da909ce4 | 290 | static int get_color(struct vc_data *vc, struct fb_info *info, |
1da177e4 LT |
291 | u16 c, int is_fg) |
292 | { | |
b8c90945 | 293 | int depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
294 | int color = 0; |
295 | ||
296 | if (console_blanked) { | |
297 | unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; | |
298 | ||
299 | c = vc->vc_video_erase_char & charmask; | |
300 | } | |
301 | ||
302 | if (depth != 1) | |
303 | color = (is_fg) ? attr_fgcol((vc->vc_hi_font_mask) ? 9 : 8, c) | |
304 | : attr_bgcol((vc->vc_hi_font_mask) ? 13 : 12, c); | |
305 | ||
306 | switch (depth) { | |
307 | case 1: | |
308 | { | |
91c43132 | 309 | int col = mono_col(info); |
1da177e4 | 310 | /* 0 or 1 */ |
b8c90945 AD |
311 | int fg = (info->fix.visual != FB_VISUAL_MONO01) ? col : 0; |
312 | int bg = (info->fix.visual != FB_VISUAL_MONO01) ? 0 : col; | |
1da177e4 LT |
313 | |
314 | if (console_blanked) | |
315 | fg = bg; | |
316 | ||
317 | color = (is_fg) ? fg : bg; | |
318 | break; | |
319 | } | |
320 | case 2: | |
321 | /* | |
322 | * Scale down 16-colors to 4 colors. Default 4-color palette | |
2cc38ed1 AD |
323 | * is grayscale. However, simply dividing the values by 4 |
324 | * will not work, as colors 1, 2 and 3 will be scaled-down | |
325 | * to zero rendering them invisible. So empirically convert | |
326 | * colors to a sane 4-level grayscale. | |
1da177e4 | 327 | */ |
2cc38ed1 AD |
328 | switch (color) { |
329 | case 0: | |
330 | color = 0; /* black */ | |
331 | break; | |
332 | case 1 ... 6: | |
333 | color = 2; /* white */ | |
334 | break; | |
335 | case 7 ... 8: | |
336 | color = 1; /* gray */ | |
337 | break; | |
338 | default: | |
339 | color = 3; /* intense white */ | |
340 | break; | |
341 | } | |
342 | break; | |
1da177e4 LT |
343 | case 3: |
344 | /* | |
345 | * Last 8 entries of default 16-color palette is a more intense | |
346 | * version of the first 8 (i.e., same chrominance, different | |
347 | * luminance). | |
348 | */ | |
349 | color &= 7; | |
350 | break; | |
351 | } | |
352 | ||
353 | ||
354 | return color; | |
355 | } | |
356 | ||
4d9c5b6e AD |
357 | static void fbcon_update_softback(struct vc_data *vc) |
358 | { | |
359 | int l = fbcon_softback_size / vc->vc_size_row; | |
360 | ||
361 | if (l > 5) | |
362 | softback_end = softback_buf + l * vc->vc_size_row; | |
363 | else | |
364 | /* Smaller scrollback makes no sense, and 0 would screw | |
365 | the operation totally */ | |
366 | softback_top = 0; | |
367 | } | |
368 | ||
c4028958 | 369 | static void fb_flashcursor(struct work_struct *work) |
1da177e4 | 370 | { |
c4028958 | 371 | struct fb_info *info = container_of(work, struct fb_info, queue); |
1da177e4 LT |
372 | struct fbcon_ops *ops = info->fbcon_par; |
373 | struct display *p; | |
374 | struct vc_data *vc = NULL; | |
375 | int c; | |
376 | int mode; | |
377 | ||
ac751efa | 378 | console_lock(); |
5428b044 | 379 | if (ops && ops->currcon != -1) |
1da177e4 LT |
380 | vc = vc_cons[ops->currcon].d; |
381 | ||
382 | if (!vc || !CON_IS_VISIBLE(vc) || | |
dbd4f128 | 383 | registered_fb[con2fb_map[vc->vc_num]] != info || |
212f2639 | 384 | vc->vc_deccm != 1) { |
ac751efa | 385 | console_unlock(); |
1da177e4 | 386 | return; |
5428b044 AD |
387 | } |
388 | ||
1da177e4 LT |
389 | p = &fb_display[vc->vc_num]; |
390 | c = scr_readw((u16 *) vc->vc_pos); | |
391 | mode = (!ops->cursor_flash || ops->cursor_state.enable) ? | |
392 | CM_ERASE : CM_DRAW; | |
b73deed3 | 393 | ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1), |
1da177e4 | 394 | get_color(vc, info, c, 0)); |
ac751efa | 395 | console_unlock(); |
1da177e4 LT |
396 | } |
397 | ||
1da177e4 LT |
398 | static void cursor_timer_handler(unsigned long dev_addr) |
399 | { | |
400 | struct fb_info *info = (struct fb_info *) dev_addr; | |
401 | struct fbcon_ops *ops = info->fbcon_par; | |
402 | ||
403 | schedule_work(&info->queue); | |
404 | mod_timer(&ops->cursor_timer, jiffies + HZ/5); | |
405 | } | |
406 | ||
88fb2c6e AD |
407 | static void fbcon_add_cursor_timer(struct fb_info *info) |
408 | { | |
409 | struct fbcon_ops *ops = info->fbcon_par; | |
410 | ||
411 | if ((!info->queue.func || info->queue.func == fb_flashcursor) && | |
acba9cd0 AD |
412 | !(ops->flags & FBCON_FLAGS_CURSOR_TIMER) && |
413 | !fbcon_cursor_noblink) { | |
88fb2c6e | 414 | if (!info->queue.func) |
c4028958 | 415 | INIT_WORK(&info->queue, fb_flashcursor); |
88fb2c6e AD |
416 | |
417 | init_timer(&ops->cursor_timer); | |
418 | ops->cursor_timer.function = cursor_timer_handler; | |
419 | ops->cursor_timer.expires = jiffies + HZ / 5; | |
420 | ops->cursor_timer.data = (unsigned long ) info; | |
421 | add_timer(&ops->cursor_timer); | |
422 | ops->flags |= FBCON_FLAGS_CURSOR_TIMER; | |
423 | } | |
424 | } | |
425 | ||
426 | static void fbcon_del_cursor_timer(struct fb_info *info) | |
427 | { | |
428 | struct fbcon_ops *ops = info->fbcon_par; | |
429 | ||
430 | if (info->queue.func == fb_flashcursor && | |
431 | ops->flags & FBCON_FLAGS_CURSOR_TIMER) { | |
432 | del_timer_sync(&ops->cursor_timer); | |
433 | ops->flags &= ~FBCON_FLAGS_CURSOR_TIMER; | |
434 | } | |
435 | } | |
436 | ||
1da177e4 LT |
437 | #ifndef MODULE |
438 | static int __init fb_console_setup(char *this_opt) | |
439 | { | |
440 | char *options; | |
441 | int i, j; | |
442 | ||
443 | if (!this_opt || !*this_opt) | |
9b41046c | 444 | return 1; |
1da177e4 LT |
445 | |
446 | while ((options = strsep(&this_opt, ",")) != NULL) { | |
447 | if (!strncmp(options, "font:", 5)) | |
448 | strcpy(fontname, options + 5); | |
449 | ||
450 | if (!strncmp(options, "scrollback:", 11)) { | |
451 | options += 11; | |
452 | if (*options) { | |
453 | fbcon_softback_size = simple_strtoul(options, &options, 0); | |
454 | if (*options == 'k' || *options == 'K') { | |
455 | fbcon_softback_size *= 1024; | |
456 | options++; | |
457 | } | |
458 | if (*options != ',') | |
9b41046c | 459 | return 1; |
1da177e4 LT |
460 | options++; |
461 | } else | |
9b41046c | 462 | return 1; |
1da177e4 LT |
463 | } |
464 | ||
465 | if (!strncmp(options, "map:", 4)) { | |
466 | options += 4; | |
623e71b0 | 467 | if (*options) { |
1da177e4 LT |
468 | for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { |
469 | if (!options[j]) | |
470 | j = 0; | |
471 | con2fb_map_boot[i] = | |
472 | (options[j++]-'0') % FB_MAX; | |
473 | } | |
623e71b0 | 474 | |
4769a9a5 | 475 | fbcon_map_override(); |
623e71b0 AD |
476 | } |
477 | ||
9b41046c | 478 | return 1; |
1da177e4 LT |
479 | } |
480 | ||
481 | if (!strncmp(options, "vc:", 3)) { | |
482 | options += 3; | |
483 | if (*options) | |
484 | first_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
485 | if (first_fb_vc < 0) | |
486 | first_fb_vc = 0; | |
487 | if (*options++ == '-') | |
488 | last_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
489 | fbcon_is_default = 0; | |
490 | } | |
e4fc2761 AD |
491 | |
492 | if (!strncmp(options, "rotate:", 7)) { | |
493 | options += 7; | |
494 | if (*options) | |
2428e59b MS |
495 | initial_rotation = simple_strtoul(options, &options, 0); |
496 | if (initial_rotation > 3) | |
497 | initial_rotation = 0; | |
e4fc2761 | 498 | } |
1da177e4 | 499 | } |
9b41046c | 500 | return 1; |
1da177e4 LT |
501 | } |
502 | ||
503 | __setup("fbcon=", fb_console_setup); | |
504 | #endif | |
505 | ||
506 | static int search_fb_in_map(int idx) | |
507 | { | |
508 | int i, retval = 0; | |
509 | ||
e614b18d | 510 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
511 | if (con2fb_map[i] == idx) |
512 | retval = 1; | |
513 | } | |
514 | return retval; | |
515 | } | |
516 | ||
517 | static int search_for_mapped_con(void) | |
518 | { | |
519 | int i, retval = 0; | |
520 | ||
e614b18d | 521 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
522 | if (con2fb_map[i] != -1) |
523 | retval = 1; | |
524 | } | |
525 | return retval; | |
526 | } | |
527 | ||
528 | static int fbcon_takeover(int show_logo) | |
529 | { | |
530 | int err, i; | |
531 | ||
532 | if (!num_registered_fb) | |
533 | return -ENODEV; | |
534 | ||
535 | if (!show_logo) | |
536 | logo_shown = FBCON_LOGO_DONTSHOW; | |
537 | ||
538 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
539 | con2fb_map[i] = info_idx; | |
540 | ||
541 | err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, | |
542 | fbcon_is_default); | |
e614b18d | 543 | |
1da177e4 LT |
544 | if (err) { |
545 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
546 | con2fb_map[i] = -1; | |
547 | } | |
548 | info_idx = -1; | |
2ddce3fd IA |
549 | } else { |
550 | fbcon_has_console_bind = 1; | |
1da177e4 LT |
551 | } |
552 | ||
553 | return err; | |
554 | } | |
555 | ||
70802c60 AD |
556 | #ifdef MODULE |
557 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, | |
558 | int cols, int rows, int new_cols, int new_rows) | |
559 | { | |
560 | logo_shown = FBCON_LOGO_DONTSHOW; | |
561 | } | |
562 | #else | |
1da177e4 LT |
563 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, |
564 | int cols, int rows, int new_cols, int new_rows) | |
565 | { | |
566 | /* Need to make room for the logo */ | |
9c44e5f6 | 567 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
568 | int cnt, erase = vc->vc_video_erase_char, step; |
569 | unsigned short *save = NULL, *r, *q; | |
49a1d28f | 570 | int logo_height; |
1da177e4 | 571 | |
70802c60 AD |
572 | if (info->flags & FBINFO_MODULE) { |
573 | logo_shown = FBCON_LOGO_DONTSHOW; | |
574 | return; | |
575 | } | |
576 | ||
1da177e4 LT |
577 | /* |
578 | * remove underline attribute from erase character | |
579 | * if black and white framebuffer. | |
580 | */ | |
b8c90945 | 581 | if (fb_get_color_depth(&info->var, &info->fix) == 1) |
1da177e4 | 582 | erase &= ~0x400; |
9c44e5f6 | 583 | logo_height = fb_prepare_logo(info, ops->rotate); |
416e74ea | 584 | logo_lines = DIV_ROUND_UP(logo_height, vc->vc_font.height); |
1da177e4 LT |
585 | q = (unsigned short *) (vc->vc_origin + |
586 | vc->vc_size_row * rows); | |
587 | step = logo_lines * cols; | |
588 | for (r = q - logo_lines * cols; r < q; r++) | |
589 | if (scr_readw(r) != vc->vc_video_erase_char) | |
590 | break; | |
591 | if (r != q && new_rows >= rows + logo_lines) { | |
592 | save = kmalloc(logo_lines * new_cols * 2, GFP_KERNEL); | |
593 | if (save) { | |
594 | int i = cols < new_cols ? cols : new_cols; | |
595 | scr_memsetw(save, erase, logo_lines * new_cols * 2); | |
596 | r = q - step; | |
597 | for (cnt = 0; cnt < logo_lines; cnt++, r += i) | |
598 | scr_memcpyw(save + cnt * new_cols, r, 2 * i); | |
599 | r = q; | |
600 | } | |
601 | } | |
602 | if (r == q) { | |
603 | /* We can scroll screen down */ | |
604 | r = q - step - cols; | |
605 | for (cnt = rows - logo_lines; cnt > 0; cnt--) { | |
606 | scr_memcpyw(r + step, r, vc->vc_size_row); | |
607 | r -= cols; | |
608 | } | |
609 | if (!save) { | |
250038f5 GU |
610 | int lines; |
611 | if (vc->vc_y + logo_lines >= rows) | |
612 | lines = rows - vc->vc_y - 1; | |
613 | else | |
614 | lines = logo_lines; | |
615 | vc->vc_y += lines; | |
616 | vc->vc_pos += lines * vc->vc_size_row; | |
1da177e4 LT |
617 | } |
618 | } | |
619 | scr_memsetw((unsigned short *) vc->vc_origin, | |
620 | erase, | |
621 | vc->vc_size_row * logo_lines); | |
622 | ||
623 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { | |
624 | fbcon_clear_margins(vc, 0); | |
625 | update_screen(vc); | |
626 | } | |
627 | ||
628 | if (save) { | |
629 | q = (unsigned short *) (vc->vc_origin + | |
630 | vc->vc_size_row * | |
631 | rows); | |
632 | scr_memcpyw(q, save, logo_lines * new_cols * 2); | |
633 | vc->vc_y += logo_lines; | |
634 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
635 | kfree(save); | |
636 | } | |
637 | ||
638 | if (logo_lines > vc->vc_bottom) { | |
639 | logo_shown = FBCON_LOGO_CANSHOW; | |
640 | printk(KERN_INFO | |
641 | "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); | |
642 | } else if (logo_shown != FBCON_LOGO_DONTSHOW) { | |
643 | logo_shown = FBCON_LOGO_DRAW; | |
644 | vc->vc_top = logo_lines; | |
645 | } | |
646 | } | |
70802c60 | 647 | #endif /* MODULE */ |
1da177e4 LT |
648 | |
649 | #ifdef CONFIG_FB_TILEBLITTING | |
b73deed3 | 650 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
651 | { |
652 | struct fbcon_ops *ops = info->fbcon_par; | |
653 | ||
b73deed3 | 654 | ops->p = &fb_display[vc->vc_num]; |
ab767201 | 655 | |
1da177e4 | 656 | if ((info->flags & FBINFO_MISC_TILEBLITTING)) |
b73deed3 | 657 | fbcon_set_tileops(vc, info); |
e4fc2761 | 658 | else { |
b73deed3 | 659 | fbcon_set_rotation(info); |
1da177e4 | 660 | fbcon_set_bitops(ops); |
e4fc2761 | 661 | } |
1da177e4 | 662 | } |
38b4982c AD |
663 | |
664 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
665 | { | |
666 | int err = 0; | |
667 | ||
668 | if (info->flags & FBINFO_MISC_TILEBLITTING && | |
669 | info->tileops->fb_get_tilemax(info) < charcount) | |
670 | err = 1; | |
671 | ||
672 | return err; | |
673 | } | |
1da177e4 | 674 | #else |
b73deed3 | 675 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
676 | { |
677 | struct fbcon_ops *ops = info->fbcon_par; | |
678 | ||
679 | info->flags &= ~FBINFO_MISC_TILEBLITTING; | |
b73deed3 AD |
680 | ops->p = &fb_display[vc->vc_num]; |
681 | fbcon_set_rotation(info); | |
1da177e4 LT |
682 | fbcon_set_bitops(ops); |
683 | } | |
38b4982c AD |
684 | |
685 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
686 | { | |
687 | return 0; | |
688 | } | |
689 | ||
1da177e4 LT |
690 | #endif /* CONFIG_MISC_TILEBLITTING */ |
691 | ||
692 | ||
693 | static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, | |
694 | int unit, int oldidx) | |
695 | { | |
696 | struct fbcon_ops *ops = NULL; | |
697 | int err = 0; | |
698 | ||
699 | if (!try_module_get(info->fbops->owner)) | |
700 | err = -ENODEV; | |
701 | ||
702 | if (!err && info->fbops->fb_open && | |
703 | info->fbops->fb_open(info, 0)) | |
704 | err = -ENODEV; | |
705 | ||
706 | if (!err) { | |
a39bc34e | 707 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
708 | if (!ops) |
709 | err = -ENOMEM; | |
710 | } | |
711 | ||
712 | if (!err) { | |
1da177e4 | 713 | info->fbcon_par = ops; |
d1baa4ff AD |
714 | |
715 | if (vc) | |
716 | set_blitting_type(vc, info); | |
1da177e4 LT |
717 | } |
718 | ||
719 | if (err) { | |
720 | con2fb_map[unit] = oldidx; | |
721 | module_put(info->fbops->owner); | |
722 | } | |
723 | ||
724 | return err; | |
725 | } | |
726 | ||
727 | static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo, | |
728 | struct fb_info *newinfo, int unit, | |
729 | int oldidx, int found) | |
730 | { | |
731 | struct fbcon_ops *ops = oldinfo->fbcon_par; | |
0fcf6ada | 732 | int err = 0, ret; |
1da177e4 LT |
733 | |
734 | if (oldinfo->fbops->fb_release && | |
735 | oldinfo->fbops->fb_release(oldinfo, 0)) { | |
736 | con2fb_map[unit] = oldidx; | |
737 | if (!found && newinfo->fbops->fb_release) | |
738 | newinfo->fbops->fb_release(newinfo, 0); | |
739 | if (!found) | |
740 | module_put(newinfo->fbops->owner); | |
741 | err = -ENODEV; | |
742 | } | |
743 | ||
744 | if (!err) { | |
88fb2c6e | 745 | fbcon_del_cursor_timer(oldinfo); |
1da177e4 LT |
746 | kfree(ops->cursor_state.mask); |
747 | kfree(ops->cursor_data); | |
e4fc2761 | 748 | kfree(ops->fontbuffer); |
1da177e4 LT |
749 | kfree(oldinfo->fbcon_par); |
750 | oldinfo->fbcon_par = NULL; | |
751 | module_put(oldinfo->fbops->owner); | |
dd0314f7 AD |
752 | /* |
753 | If oldinfo and newinfo are driving the same hardware, | |
754 | the fb_release() method of oldinfo may attempt to | |
755 | restore the hardware state. This will leave the | |
756 | newinfo in an undefined state. Thus, a call to | |
757 | fb_set_par() may be needed for the newinfo. | |
758 | */ | |
0fcf6ada FTS |
759 | if (newinfo->fbops->fb_set_par) { |
760 | ret = newinfo->fbops->fb_set_par(newinfo); | |
761 | ||
762 | if (ret) | |
763 | printk(KERN_ERR "con2fb_release_oldinfo: " | |
764 | "detected unhandled fb_set_par error, " | |
765 | "error code %d\n", ret); | |
766 | } | |
1da177e4 LT |
767 | } |
768 | ||
769 | return err; | |
770 | } | |
771 | ||
1da177e4 LT |
772 | static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, |
773 | int unit, int show_logo) | |
774 | { | |
775 | struct fbcon_ops *ops = info->fbcon_par; | |
0fcf6ada | 776 | int ret; |
1da177e4 LT |
777 | |
778 | ops->currcon = fg_console; | |
779 | ||
0fcf6ada FTS |
780 | if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) { |
781 | ret = info->fbops->fb_set_par(info); | |
782 | ||
783 | if (ret) | |
784 | printk(KERN_ERR "con2fb_init_display: detected " | |
785 | "unhandled fb_set_par error, " | |
786 | "error code %d\n", ret); | |
787 | } | |
1da177e4 LT |
788 | |
789 | ops->flags |= FBCON_FLAGS_INIT; | |
790 | ops->graphics = 0; | |
d1baa4ff | 791 | fbcon_set_disp(info, &info->var, unit); |
1da177e4 LT |
792 | |
793 | if (show_logo) { | |
794 | struct vc_data *fg_vc = vc_cons[fg_console].d; | |
795 | struct fb_info *fg_info = | |
796 | registered_fb[con2fb_map[fg_console]]; | |
797 | ||
798 | fbcon_prepare_logo(fg_vc, fg_info, fg_vc->vc_cols, | |
799 | fg_vc->vc_rows, fg_vc->vc_cols, | |
800 | fg_vc->vc_rows); | |
801 | } | |
802 | ||
803 | update_screen(vc_cons[fg_console].d); | |
804 | } | |
805 | ||
806 | /** | |
807 | * set_con2fb_map - map console to frame buffer device | |
808 | * @unit: virtual console number to map | |
809 | * @newidx: frame buffer index to map virtual console to | |
810 | * @user: user request | |
811 | * | |
812 | * Maps a virtual console @unit to a frame buffer device | |
813 | * @newidx. | |
814 | */ | |
815 | static int set_con2fb_map(int unit, int newidx, int user) | |
816 | { | |
817 | struct vc_data *vc = vc_cons[unit].d; | |
818 | int oldidx = con2fb_map[unit]; | |
819 | struct fb_info *info = registered_fb[newidx]; | |
820 | struct fb_info *oldinfo = NULL; | |
821 | int found, err = 0; | |
822 | ||
823 | if (oldidx == newidx) | |
824 | return 0; | |
825 | ||
e614b18d AD |
826 | if (!info || fbcon_has_exited) |
827 | return -EINVAL; | |
1da177e4 LT |
828 | |
829 | if (!err && !search_for_mapped_con()) { | |
830 | info_idx = newidx; | |
831 | return fbcon_takeover(0); | |
832 | } | |
833 | ||
834 | if (oldidx != -1) | |
835 | oldinfo = registered_fb[oldidx]; | |
836 | ||
837 | found = search_fb_in_map(newidx); | |
838 | ||
ac751efa | 839 | console_lock(); |
1da177e4 LT |
840 | con2fb_map[unit] = newidx; |
841 | if (!err && !found) | |
842 | err = con2fb_acquire_newinfo(vc, info, unit, oldidx); | |
843 | ||
844 | ||
845 | /* | |
846 | * If old fb is not mapped to any of the consoles, | |
847 | * fbcon should release it. | |
848 | */ | |
849 | if (!err && oldinfo && !search_fb_in_map(oldidx)) | |
850 | err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx, | |
851 | found); | |
852 | ||
853 | if (!err) { | |
854 | int show_logo = (fg_console == 0 && !user && | |
855 | logo_shown != FBCON_LOGO_DONTSHOW); | |
856 | ||
857 | if (!found) | |
88fb2c6e | 858 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
859 | con2fb_map_boot[unit] = newidx; |
860 | con2fb_init_display(vc, info, unit, show_logo); | |
861 | } | |
862 | ||
e614b18d AD |
863 | if (!search_fb_in_map(info_idx)) |
864 | info_idx = newidx; | |
865 | ||
ac751efa | 866 | console_unlock(); |
1da177e4 LT |
867 | return err; |
868 | } | |
869 | ||
870 | /* | |
871 | * Low Level Operations | |
872 | */ | |
873 | /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ | |
874 | static int var_to_display(struct display *disp, | |
875 | struct fb_var_screeninfo *var, | |
876 | struct fb_info *info) | |
877 | { | |
878 | disp->xres_virtual = var->xres_virtual; | |
879 | disp->yres_virtual = var->yres_virtual; | |
880 | disp->bits_per_pixel = var->bits_per_pixel; | |
881 | disp->grayscale = var->grayscale; | |
882 | disp->nonstd = var->nonstd; | |
883 | disp->accel_flags = var->accel_flags; | |
884 | disp->height = var->height; | |
885 | disp->width = var->width; | |
886 | disp->red = var->red; | |
887 | disp->green = var->green; | |
888 | disp->blue = var->blue; | |
889 | disp->transp = var->transp; | |
890 | disp->rotate = var->rotate; | |
891 | disp->mode = fb_match_mode(var, &info->modelist); | |
892 | if (disp->mode == NULL) | |
893 | /* This should not happen */ | |
894 | return -EINVAL; | |
895 | return 0; | |
896 | } | |
897 | ||
898 | static void display_to_var(struct fb_var_screeninfo *var, | |
899 | struct display *disp) | |
900 | { | |
901 | fb_videomode_to_var(var, disp->mode); | |
902 | var->xres_virtual = disp->xres_virtual; | |
903 | var->yres_virtual = disp->yres_virtual; | |
904 | var->bits_per_pixel = disp->bits_per_pixel; | |
905 | var->grayscale = disp->grayscale; | |
906 | var->nonstd = disp->nonstd; | |
907 | var->accel_flags = disp->accel_flags; | |
908 | var->height = disp->height; | |
909 | var->width = disp->width; | |
910 | var->red = disp->red; | |
911 | var->green = disp->green; | |
912 | var->blue = disp->blue; | |
913 | var->transp = disp->transp; | |
914 | var->rotate = disp->rotate; | |
915 | } | |
916 | ||
917 | static const char *fbcon_startup(void) | |
918 | { | |
919 | const char *display_desc = "frame buffer device"; | |
920 | struct display *p = &fb_display[fg_console]; | |
921 | struct vc_data *vc = vc_cons[fg_console].d; | |
2f4516db | 922 | const struct font_desc *font = NULL; |
1da177e4 LT |
923 | struct module *owner; |
924 | struct fb_info *info = NULL; | |
925 | struct fbcon_ops *ops; | |
926 | int rows, cols; | |
1da177e4 | 927 | |
1da177e4 LT |
928 | /* |
929 | * If num_registered_fb is zero, this is a call for the dummy part. | |
930 | * The frame buffer devices weren't initialized yet. | |
931 | */ | |
932 | if (!num_registered_fb || info_idx == -1) | |
933 | return display_desc; | |
934 | /* | |
935 | * Instead of blindly using registered_fb[0], we use info_idx, set by | |
936 | * fb_console_init(); | |
937 | */ | |
938 | info = registered_fb[info_idx]; | |
939 | if (!info) | |
940 | return NULL; | |
941 | ||
942 | owner = info->fbops->owner; | |
943 | if (!try_module_get(owner)) | |
944 | return NULL; | |
945 | if (info->fbops->fb_open && info->fbops->fb_open(info, 0)) { | |
946 | module_put(owner); | |
947 | return NULL; | |
948 | } | |
949 | ||
a39bc34e | 950 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
951 | if (!ops) { |
952 | module_put(owner); | |
953 | return NULL; | |
954 | } | |
955 | ||
1da177e4 LT |
956 | ops->currcon = -1; |
957 | ops->graphics = 1; | |
e4fc2761 | 958 | ops->cur_rotate = -1; |
1da177e4 | 959 | info->fbcon_par = ops; |
2428e59b | 960 | p->con_rotate = initial_rotation; |
b73deed3 | 961 | set_blitting_type(vc, info); |
1da177e4 LT |
962 | |
963 | if (info->fix.type != FB_TYPE_TEXT) { | |
964 | if (fbcon_softback_size) { | |
965 | if (!softback_buf) { | |
966 | softback_buf = | |
967 | (unsigned long) | |
968 | kmalloc(fbcon_softback_size, | |
969 | GFP_KERNEL); | |
970 | if (!softback_buf) { | |
971 | fbcon_softback_size = 0; | |
972 | softback_top = 0; | |
973 | } | |
974 | } | |
975 | } else { | |
976 | if (softback_buf) { | |
977 | kfree((void *) softback_buf); | |
978 | softback_buf = 0; | |
979 | softback_top = 0; | |
980 | } | |
981 | } | |
982 | if (softback_buf) | |
983 | softback_in = softback_top = softback_curr = | |
984 | softback_buf; | |
985 | softback_lines = 0; | |
986 | } | |
987 | ||
988 | /* Setup default font */ | |
989 | if (!p->fontdata) { | |
990 | if (!fontname[0] || !(font = find_font(fontname))) | |
991 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
992 | info->var.yres, |
993 | info->pixmap.blit_x, | |
994 | info->pixmap.blit_y); | |
1da177e4 LT |
995 | vc->vc_font.width = font->width; |
996 | vc->vc_font.height = font->height; | |
2f4516db | 997 | vc->vc_font.data = (void *)(p->fontdata = font->data); |
1da177e4 LT |
998 | vc->vc_font.charcount = 256; /* FIXME Need to support more fonts */ |
999 | } | |
1000 | ||
e4fc2761 AD |
1001 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1002 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1003 | cols /= vc->vc_font.width; | |
1004 | rows /= vc->vc_font.height; | |
1da177e4 LT |
1005 | vc_resize(vc, cols, rows); |
1006 | ||
1007 | DPRINTK("mode: %s\n", info->fix.id); | |
1008 | DPRINTK("visual: %d\n", info->fix.visual); | |
1009 | DPRINTK("res: %dx%d-%d\n", info->var.xres, | |
1010 | info->var.yres, | |
1011 | info->var.bits_per_pixel); | |
1012 | ||
88fb2c6e | 1013 | fbcon_add_cursor_timer(info); |
e614b18d | 1014 | fbcon_has_exited = 0; |
1da177e4 LT |
1015 | return display_desc; |
1016 | } | |
1017 | ||
1018 | static void fbcon_init(struct vc_data *vc, int init) | |
1019 | { | |
1020 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1021 | struct fbcon_ops *ops; | |
1022 | struct vc_data **default_mode = vc->vc_display_fg; | |
1023 | struct vc_data *svc = *default_mode; | |
1024 | struct display *t, *p = &fb_display[vc->vc_num]; | |
1025 | int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; | |
0fcf6ada | 1026 | int cap, ret; |
1da177e4 LT |
1027 | |
1028 | if (info_idx == -1 || info == NULL) | |
1029 | return; | |
306958e8 AB |
1030 | |
1031 | cap = info->flags; | |
1032 | ||
1da177e4 LT |
1033 | if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || |
1034 | (info->fix.type == FB_TYPE_TEXT)) | |
1035 | logo = 0; | |
1036 | ||
1da177e4 LT |
1037 | if (var_to_display(p, &info->var, info)) |
1038 | return; | |
1039 | ||
d1baa4ff AD |
1040 | if (!info->fbcon_par) |
1041 | con2fb_acquire_newinfo(vc, info, vc->vc_num, -1); | |
1042 | ||
1da177e4 LT |
1043 | /* If we are not the first console on this |
1044 | fb, copy the font from that console */ | |
e614b18d AD |
1045 | t = &fb_display[fg_console]; |
1046 | if (!p->fontdata) { | |
1047 | if (t->fontdata) { | |
1048 | struct vc_data *fvc = vc_cons[fg_console].d; | |
1049 | ||
1050 | vc->vc_font.data = (void *)(p->fontdata = | |
1051 | fvc->vc_font.data); | |
1052 | vc->vc_font.width = fvc->vc_font.width; | |
1053 | vc->vc_font.height = fvc->vc_font.height; | |
1054 | p->userfont = t->userfont; | |
1055 | ||
1056 | if (p->userfont) | |
1057 | REFCOUNT(p->fontdata)++; | |
1058 | } else { | |
1059 | const struct font_desc *font = NULL; | |
1060 | ||
1061 | if (!fontname[0] || !(font = find_font(fontname))) | |
1062 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1063 | info->var.yres, |
1064 | info->pixmap.blit_x, | |
1065 | info->pixmap.blit_y); | |
e614b18d AD |
1066 | vc->vc_font.width = font->width; |
1067 | vc->vc_font.height = font->height; | |
1068 | vc->vc_font.data = (void *)(p->fontdata = font->data); | |
1069 | vc->vc_font.charcount = 256; /* FIXME Need to | |
1070 | support more fonts */ | |
1071 | } | |
1da177e4 | 1072 | } |
e614b18d | 1073 | |
1da177e4 LT |
1074 | if (p->userfont) |
1075 | charcnt = FNTCHARCNT(p->fontdata); | |
e614b18d | 1076 | |
8fd4bd22 | 1077 | vc->vc_panic_force_write = !!(info->flags & FBINFO_CAN_FORCE_OUTPUT); |
b8c90945 | 1078 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1079 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1080 | if (charcnt == 256) { | |
1081 | vc->vc_hi_font_mask = 0; | |
1082 | } else { | |
1083 | vc->vc_hi_font_mask = 0x100; | |
1084 | if (vc->vc_can_do_color) | |
1085 | vc->vc_complement_mask <<= 1; | |
1086 | } | |
1087 | ||
1088 | if (!*svc->vc_uni_pagedir_loc) | |
1089 | con_set_default_unimap(svc); | |
1090 | if (!*vc->vc_uni_pagedir_loc) | |
1091 | con_copy_unimap(vc, svc); | |
1092 | ||
e4fc2761 | 1093 | ops = info->fbcon_par; |
2428e59b | 1094 | p->con_rotate = initial_rotation; |
b73deed3 | 1095 | set_blitting_type(vc, info); |
e4fc2761 | 1096 | |
1da177e4 LT |
1097 | cols = vc->vc_cols; |
1098 | rows = vc->vc_rows; | |
e4fc2761 AD |
1099 | new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1100 | new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1101 | new_cols /= vc->vc_font.width; | |
1102 | new_rows /= vc->vc_font.height; | |
1da177e4 | 1103 | |
1da177e4 LT |
1104 | /* |
1105 | * We must always set the mode. The mode of the previous console | |
1106 | * driver could be in the same resolution but we are using different | |
1107 | * hardware so we have to initialize the hardware. | |
1108 | * | |
1109 | * We need to do it in fbcon_init() to prevent screen corruption. | |
1110 | */ | |
d354d9af | 1111 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { |
1da177e4 | 1112 | if (info->fbops->fb_set_par && |
0fcf6ada FTS |
1113 | !(ops->flags & FBCON_FLAGS_INIT)) { |
1114 | ret = info->fbops->fb_set_par(info); | |
1115 | ||
1116 | if (ret) | |
1117 | printk(KERN_ERR "fbcon_init: detected " | |
1118 | "unhandled fb_set_par error, " | |
1119 | "error code %d\n", ret); | |
1120 | } | |
1121 | ||
1da177e4 LT |
1122 | ops->flags |= FBCON_FLAGS_INIT; |
1123 | } | |
1124 | ||
1125 | ops->graphics = 0; | |
1126 | ||
1127 | if ((cap & FBINFO_HWACCEL_COPYAREA) && | |
1128 | !(cap & FBINFO_HWACCEL_DISABLED)) | |
1129 | p->scrollmode = SCROLL_MOVE; | |
1130 | else /* default to something safe */ | |
1131 | p->scrollmode = SCROLL_REDRAW; | |
1132 | ||
1133 | /* | |
1134 | * ++guenther: console.c:vc_allocate() relies on initializing | |
1135 | * vc_{cols,rows}, but we must not set those if we are only | |
1136 | * resizing the console. | |
1137 | */ | |
0035fe00 | 1138 | if (init) { |
1da177e4 LT |
1139 | vc->vc_cols = new_cols; |
1140 | vc->vc_rows = new_rows; | |
0035fe00 JW |
1141 | } else |
1142 | vc_resize(vc, new_cols, new_rows); | |
1da177e4 LT |
1143 | |
1144 | if (logo) | |
1145 | fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); | |
1146 | ||
4d9c5b6e AD |
1147 | if (vc == svc && softback_buf) |
1148 | fbcon_update_softback(vc); | |
e4fc2761 | 1149 | |
b73deed3 | 1150 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 1151 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 1152 | set_blitting_type(vc, info); |
e4fc2761 AD |
1153 | } |
1154 | ||
1a37d5f5 | 1155 | ops->p = &fb_display[fg_console]; |
1da177e4 LT |
1156 | } |
1157 | ||
e614b18d AD |
1158 | static void fbcon_free_font(struct display *p) |
1159 | { | |
1160 | if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0)) | |
1161 | kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int)); | |
1162 | p->fontdata = NULL; | |
1163 | p->userfont = 0; | |
1164 | } | |
1165 | ||
1da177e4 LT |
1166 | static void fbcon_deinit(struct vc_data *vc) |
1167 | { | |
1168 | struct display *p = &fb_display[vc->vc_num]; | |
e614b18d AD |
1169 | struct fb_info *info; |
1170 | struct fbcon_ops *ops; | |
1171 | int idx; | |
1da177e4 | 1172 | |
1da177e4 | 1173 | fbcon_free_font(p); |
e614b18d AD |
1174 | idx = con2fb_map[vc->vc_num]; |
1175 | ||
1176 | if (idx == -1) | |
1177 | goto finished; | |
1178 | ||
1179 | info = registered_fb[idx]; | |
1180 | ||
1181 | if (!info) | |
1182 | goto finished; | |
1183 | ||
1184 | ops = info->fbcon_par; | |
1185 | ||
1186 | if (!ops) | |
1187 | goto finished; | |
1188 | ||
1189 | if (CON_IS_VISIBLE(vc)) | |
1190 | fbcon_del_cursor_timer(info); | |
1191 | ||
1192 | ops->flags &= ~FBCON_FLAGS_INIT; | |
1193 | finished: | |
1194 | ||
1195 | if (!con_is_bound(&fb_con)) | |
1196 | fbcon_exit(); | |
1197 | ||
1198 | return; | |
1da177e4 LT |
1199 | } |
1200 | ||
1201 | /* ====================================================================== */ | |
1202 | ||
1203 | /* fbcon_XXX routines - interface used by the world | |
1204 | * | |
1205 | * This system is now divided into two levels because of complications | |
1206 | * caused by hardware scrolling. Top level functions: | |
1207 | * | |
1208 | * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins() | |
1209 | * | |
1210 | * handles y values in range [0, scr_height-1] that correspond to real | |
1211 | * screen positions. y_wrap shift means that first line of bitmap may be | |
1212 | * anywhere on this display. These functions convert lineoffsets to | |
1213 | * bitmap offsets and deal with the wrap-around case by splitting blits. | |
1214 | * | |
1215 | * fbcon_bmove_physical_8() -- These functions fast implementations | |
1216 | * fbcon_clear_physical_8() -- of original fbcon_XXX fns. | |
1217 | * fbcon_putc_physical_8() -- (font width != 8) may be added later | |
1218 | * | |
1219 | * WARNING: | |
1220 | * | |
1221 | * At the moment fbcon_putc() cannot blit across vertical wrap boundary | |
1222 | * Implies should only really hardware scroll in rows. Only reason for | |
1223 | * restriction is simplicity & efficiency at the moment. | |
1224 | */ | |
1225 | ||
1da177e4 LT |
1226 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, |
1227 | int width) | |
1228 | { | |
1229 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1230 | struct fbcon_ops *ops = info->fbcon_par; | |
1231 | ||
1232 | struct display *p = &fb_display[vc->vc_num]; | |
1233 | u_int y_break; | |
1234 | ||
1235 | if (fbcon_is_inactive(vc, info)) | |
1236 | return; | |
1237 | ||
1238 | if (!height || !width) | |
1239 | return; | |
1240 | ||
c213ddf3 KH |
1241 | if (sy < vc->vc_top && vc->vc_top == logo_lines) |
1242 | vc->vc_top = 0; | |
1243 | ||
1da177e4 LT |
1244 | /* Split blits that cross physical y_wrap boundary */ |
1245 | ||
1246 | y_break = p->vrows - p->yscroll; | |
1247 | if (sy < y_break && sy + height - 1 >= y_break) { | |
1248 | u_int b = y_break - sy; | |
1249 | ops->clear(vc, info, real_y(p, sy), sx, b, width); | |
1250 | ops->clear(vc, info, real_y(p, sy + b), sx, height - b, | |
1251 | width); | |
1252 | } else | |
1253 | ops->clear(vc, info, real_y(p, sy), sx, height, width); | |
1254 | } | |
1255 | ||
1256 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
1257 | int count, int ypos, int xpos) | |
1258 | { | |
1259 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1260 | struct display *p = &fb_display[vc->vc_num]; | |
1261 | struct fbcon_ops *ops = info->fbcon_par; | |
1262 | ||
1263 | if (!fbcon_is_inactive(vc, info)) | |
1264 | ops->putcs(vc, info, s, count, real_y(p, ypos), xpos, | |
1265 | get_color(vc, info, scr_readw(s), 1), | |
1266 | get_color(vc, info, scr_readw(s), 0)); | |
1267 | } | |
1268 | ||
1269 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos) | |
1270 | { | |
1271 | unsigned short chr; | |
1272 | ||
1273 | scr_writew(c, &chr); | |
1274 | fbcon_putcs(vc, &chr, 1, ypos, xpos); | |
1275 | } | |
1276 | ||
1277 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) | |
1278 | { | |
1279 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1280 | struct fbcon_ops *ops = info->fbcon_par; | |
1281 | ||
1282 | if (!fbcon_is_inactive(vc, info)) | |
1283 | ops->clear_margins(vc, info, bottom_only); | |
1284 | } | |
1285 | ||
1286 | static void fbcon_cursor(struct vc_data *vc, int mode) | |
1287 | { | |
1288 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1289 | struct fbcon_ops *ops = info->fbcon_par; | |
1da177e4 LT |
1290 | int y; |
1291 | int c = scr_readw((u16 *) vc->vc_pos); | |
1292 | ||
d1e23066 | 1293 | if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1) |
1da177e4 LT |
1294 | return; |
1295 | ||
acba9cd0 AD |
1296 | if (vc->vc_cursor_type & 0x10) |
1297 | fbcon_del_cursor_timer(info); | |
1298 | else | |
1299 | fbcon_add_cursor_timer(info); | |
1300 | ||
1da177e4 LT |
1301 | ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; |
1302 | if (mode & CM_SOFTBACK) { | |
1303 | mode &= ~CM_SOFTBACK; | |
1304 | y = softback_lines; | |
1305 | } else { | |
1306 | if (softback_lines) | |
1307 | fbcon_set_origin(vc); | |
1308 | y = 0; | |
1309 | } | |
1310 | ||
b73deed3 | 1311 | ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1), |
1da177e4 LT |
1312 | get_color(vc, info, c, 0)); |
1313 | vbl_cursor_cnt = CURSOR_DRAW_DELAY; | |
1314 | } | |
1315 | ||
1316 | static int scrollback_phys_max = 0; | |
1317 | static int scrollback_max = 0; | |
1318 | static int scrollback_current = 0; | |
1319 | ||
1da177e4 | 1320 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, |
d1baa4ff | 1321 | int unit) |
1da177e4 | 1322 | { |
d1baa4ff AD |
1323 | struct display *p, *t; |
1324 | struct vc_data **default_mode, *vc; | |
1325 | struct vc_data *svc; | |
e4fc2761 | 1326 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1327 | int rows, cols, charcnt = 256; |
1328 | ||
d1baa4ff AD |
1329 | p = &fb_display[unit]; |
1330 | ||
1da177e4 LT |
1331 | if (var_to_display(p, var, info)) |
1332 | return; | |
d1baa4ff AD |
1333 | |
1334 | vc = vc_cons[unit].d; | |
1335 | ||
1336 | if (!vc) | |
1337 | return; | |
1338 | ||
1339 | default_mode = vc->vc_display_fg; | |
1340 | svc = *default_mode; | |
1da177e4 | 1341 | t = &fb_display[svc->vc_num]; |
d1baa4ff | 1342 | |
1da177e4 | 1343 | if (!vc->vc_font.data) { |
2f4516db | 1344 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1345 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1346 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1347 | p->userfont = t->userfont; | |
1348 | if (p->userfont) | |
1349 | REFCOUNT(p->fontdata)++; | |
1350 | } | |
1351 | if (p->userfont) | |
1352 | charcnt = FNTCHARCNT(p->fontdata); | |
1353 | ||
b8c90945 AD |
1354 | var->activate = FB_ACTIVATE_NOW; |
1355 | info->var.activate = var->activate; | |
e4fc2761 AD |
1356 | var->yoffset = info->var.yoffset; |
1357 | var->xoffset = info->var.xoffset; | |
b8c90945 | 1358 | fb_set_var(info, var); |
e4fc2761 | 1359 | ops->var = info->var; |
b8c90945 | 1360 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1361 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1362 | if (charcnt == 256) { | |
1363 | vc->vc_hi_font_mask = 0; | |
1364 | } else { | |
1365 | vc->vc_hi_font_mask = 0x100; | |
1366 | if (vc->vc_can_do_color) | |
1367 | vc->vc_complement_mask <<= 1; | |
1368 | } | |
1369 | ||
1370 | if (!*svc->vc_uni_pagedir_loc) | |
1371 | con_set_default_unimap(svc); | |
1372 | if (!*vc->vc_uni_pagedir_loc) | |
1373 | con_copy_unimap(vc, svc); | |
1374 | ||
e4fc2761 AD |
1375 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1376 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1377 | cols /= vc->vc_font.width; | |
1378 | rows /= vc->vc_font.height; | |
1da177e4 | 1379 | vc_resize(vc, cols, rows); |
e4fc2761 | 1380 | |
1da177e4 LT |
1381 | if (CON_IS_VISIBLE(vc)) { |
1382 | update_screen(vc); | |
4d9c5b6e AD |
1383 | if (softback_buf) |
1384 | fbcon_update_softback(vc); | |
1da177e4 LT |
1385 | } |
1386 | } | |
1387 | ||
1388 | static __inline__ void ywrap_up(struct vc_data *vc, int count) | |
1389 | { | |
1390 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1391 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1392 | struct display *p = &fb_display[vc->vc_num]; |
1393 | ||
1394 | p->yscroll += count; | |
1395 | if (p->yscroll >= p->vrows) /* Deal with wrap */ | |
1396 | p->yscroll -= p->vrows; | |
e4fc2761 AD |
1397 | ops->var.xoffset = 0; |
1398 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1399 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1400 | ops->update_start(info); | |
1da177e4 LT |
1401 | scrollback_max += count; |
1402 | if (scrollback_max > scrollback_phys_max) | |
1403 | scrollback_max = scrollback_phys_max; | |
1404 | scrollback_current = 0; | |
1405 | } | |
1406 | ||
1407 | static __inline__ void ywrap_down(struct vc_data *vc, int count) | |
1408 | { | |
1409 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1410 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1411 | struct display *p = &fb_display[vc->vc_num]; |
1412 | ||
1413 | p->yscroll -= count; | |
1414 | if (p->yscroll < 0) /* Deal with wrap */ | |
1415 | p->yscroll += p->vrows; | |
e4fc2761 AD |
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); | |
1da177e4 LT |
1420 | scrollback_max -= count; |
1421 | if (scrollback_max < 0) | |
1422 | scrollback_max = 0; | |
1423 | scrollback_current = 0; | |
1424 | } | |
1425 | ||
1426 | static __inline__ void ypan_up(struct vc_data *vc, int count) | |
1427 | { | |
1428 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1429 | struct display *p = &fb_display[vc->vc_num]; | |
1430 | struct fbcon_ops *ops = info->fbcon_par; | |
1431 | ||
1432 | p->yscroll += count; | |
1433 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1434 | ops->bmove(vc, info, p->vrows - vc->vc_rows, | |
1435 | 0, 0, 0, vc->vc_rows, vc->vc_cols); | |
1436 | p->yscroll -= p->vrows - vc->vc_rows; | |
1437 | } | |
e4fc2761 AD |
1438 | |
1439 | ops->var.xoffset = 0; | |
1440 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1441 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1442 | ops->update_start(info); | |
1da177e4 LT |
1443 | fbcon_clear_margins(vc, 1); |
1444 | scrollback_max += count; | |
1445 | if (scrollback_max > scrollback_phys_max) | |
1446 | scrollback_max = scrollback_phys_max; | |
1447 | scrollback_current = 0; | |
1448 | } | |
1449 | ||
1450 | static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count) | |
1451 | { | |
1452 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1453 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1454 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1455 | |
1456 | p->yscroll += count; | |
a39bc34e | 1457 | |
1da177e4 LT |
1458 | if (p->yscroll > p->vrows - vc->vc_rows) { |
1459 | p->yscroll -= p->vrows - vc->vc_rows; | |
1da177e4 | 1460 | fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t); |
a39bc34e | 1461 | } |
e4fc2761 AD |
1462 | |
1463 | ops->var.xoffset = 0; | |
1464 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1465 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1466 | ops->update_start(info); | |
1da177e4 LT |
1467 | fbcon_clear_margins(vc, 1); |
1468 | scrollback_max += count; | |
1469 | if (scrollback_max > scrollback_phys_max) | |
1470 | scrollback_max = scrollback_phys_max; | |
1471 | scrollback_current = 0; | |
1472 | } | |
1473 | ||
1474 | static __inline__ void ypan_down(struct vc_data *vc, int count) | |
1475 | { | |
1476 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1477 | struct display *p = &fb_display[vc->vc_num]; | |
1478 | struct fbcon_ops *ops = info->fbcon_par; | |
1479 | ||
1480 | p->yscroll -= count; | |
1481 | if (p->yscroll < 0) { | |
1482 | ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows, | |
1483 | 0, vc->vc_rows, vc->vc_cols); | |
1484 | p->yscroll += p->vrows - vc->vc_rows; | |
1485 | } | |
e4fc2761 AD |
1486 | |
1487 | ops->var.xoffset = 0; | |
1488 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1489 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1490 | ops->update_start(info); | |
1da177e4 LT |
1491 | fbcon_clear_margins(vc, 1); |
1492 | scrollback_max -= count; | |
1493 | if (scrollback_max < 0) | |
1494 | scrollback_max = 0; | |
1495 | scrollback_current = 0; | |
1496 | } | |
1497 | ||
1498 | static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) | |
1499 | { | |
1500 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1501 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1502 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1503 | |
1504 | p->yscroll -= count; | |
a39bc34e | 1505 | |
1da177e4 LT |
1506 | if (p->yscroll < 0) { |
1507 | p->yscroll += p->vrows - vc->vc_rows; | |
1da177e4 | 1508 | fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count); |
a39bc34e | 1509 | } |
e4fc2761 AD |
1510 | |
1511 | ops->var.xoffset = 0; | |
1512 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1513 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1514 | ops->update_start(info); | |
1da177e4 LT |
1515 | fbcon_clear_margins(vc, 1); |
1516 | scrollback_max -= count; | |
1517 | if (scrollback_max < 0) | |
1518 | scrollback_max = 0; | |
1519 | scrollback_current = 0; | |
1520 | } | |
1521 | ||
1522 | static void fbcon_redraw_softback(struct vc_data *vc, struct display *p, | |
1523 | long delta) | |
1524 | { | |
1525 | int count = vc->vc_rows; | |
1526 | unsigned short *d, *s; | |
1527 | unsigned long n; | |
1528 | int line = 0; | |
1529 | ||
1530 | d = (u16 *) softback_curr; | |
1531 | if (d == (u16 *) softback_in) | |
1532 | d = (u16 *) vc->vc_origin; | |
1533 | n = softback_curr + delta * vc->vc_size_row; | |
1534 | softback_lines -= delta; | |
1535 | if (delta < 0) { | |
1536 | if (softback_curr < softback_top && n < softback_buf) { | |
1537 | n += softback_end - softback_buf; | |
1538 | if (n < softback_top) { | |
1539 | softback_lines -= | |
1540 | (softback_top - n) / vc->vc_size_row; | |
1541 | n = softback_top; | |
1542 | } | |
1543 | } else if (softback_curr >= softback_top | |
1544 | && n < softback_top) { | |
1545 | softback_lines -= | |
1546 | (softback_top - n) / vc->vc_size_row; | |
1547 | n = softback_top; | |
1548 | } | |
1549 | } else { | |
1550 | if (softback_curr > softback_in && n >= softback_end) { | |
1551 | n += softback_buf - softback_end; | |
1552 | if (n > softback_in) { | |
1553 | n = softback_in; | |
1554 | softback_lines = 0; | |
1555 | } | |
1556 | } else if (softback_curr <= softback_in && n > softback_in) { | |
1557 | n = softback_in; | |
1558 | softback_lines = 0; | |
1559 | } | |
1560 | } | |
1561 | if (n == softback_curr) | |
1562 | return; | |
1563 | softback_curr = n; | |
1564 | s = (u16 *) softback_curr; | |
1565 | if (s == (u16 *) softback_in) | |
1566 | s = (u16 *) vc->vc_origin; | |
1567 | while (count--) { | |
1568 | unsigned short *start; | |
1569 | unsigned short *le; | |
1570 | unsigned short c; | |
1571 | int x = 0; | |
1572 | unsigned short attr = 1; | |
1573 | ||
1574 | start = s; | |
1575 | le = advance_row(s, 1); | |
1576 | do { | |
1577 | c = scr_readw(s); | |
1578 | if (attr != (c & 0xff00)) { | |
1579 | attr = c & 0xff00; | |
1580 | if (s > start) { | |
1581 | fbcon_putcs(vc, start, s - start, | |
1582 | line, x); | |
1583 | x += s - start; | |
1584 | start = s; | |
1585 | } | |
1586 | } | |
1587 | if (c == scr_readw(d)) { | |
1588 | if (s > start) { | |
1589 | fbcon_putcs(vc, start, s - start, | |
1590 | line, x); | |
1591 | x += s - start + 1; | |
1592 | start = s + 1; | |
1593 | } else { | |
1594 | x++; | |
1595 | start++; | |
1596 | } | |
1597 | } | |
1598 | s++; | |
1599 | d++; | |
1600 | } while (s < le); | |
1601 | if (s > start) | |
1602 | fbcon_putcs(vc, start, s - start, line, x); | |
1603 | line++; | |
1604 | if (d == (u16 *) softback_end) | |
1605 | d = (u16 *) softback_buf; | |
1606 | if (d == (u16 *) softback_in) | |
1607 | d = (u16 *) vc->vc_origin; | |
1608 | if (s == (u16 *) softback_end) | |
1609 | s = (u16 *) softback_buf; | |
1610 | if (s == (u16 *) softback_in) | |
1611 | s = (u16 *) vc->vc_origin; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
1616 | int line, int count, int dy) | |
1617 | { | |
1618 | unsigned short *s = (unsigned short *) | |
1619 | (vc->vc_origin + vc->vc_size_row * line); | |
1620 | ||
1621 | while (count--) { | |
1622 | unsigned short *start = s; | |
1623 | unsigned short *le = advance_row(s, 1); | |
1624 | unsigned short c; | |
1625 | int x = 0; | |
1626 | unsigned short attr = 1; | |
1627 | ||
1628 | do { | |
1629 | c = scr_readw(s); | |
1630 | if (attr != (c & 0xff00)) { | |
1631 | attr = c & 0xff00; | |
1632 | if (s > start) { | |
1633 | fbcon_putcs(vc, start, s - start, | |
1634 | dy, x); | |
1635 | x += s - start; | |
1636 | start = s; | |
1637 | } | |
1638 | } | |
1639 | console_conditional_schedule(); | |
1640 | s++; | |
1641 | } while (s < le); | |
1642 | if (s > start) | |
1643 | fbcon_putcs(vc, start, s - start, dy, x); | |
1644 | console_conditional_schedule(); | |
1645 | dy++; | |
1646 | } | |
1647 | } | |
1648 | ||
bad07ff7 KH |
1649 | static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info, |
1650 | struct display *p, int line, int count, int ycount) | |
1651 | { | |
1652 | int offset = ycount * vc->vc_cols; | |
1653 | unsigned short *d = (unsigned short *) | |
1654 | (vc->vc_origin + vc->vc_size_row * line); | |
1655 | unsigned short *s = d + offset; | |
1656 | struct fbcon_ops *ops = info->fbcon_par; | |
1657 | ||
1658 | while (count--) { | |
1659 | unsigned short *start = s; | |
1660 | unsigned short *le = advance_row(s, 1); | |
1661 | unsigned short c; | |
1662 | int x = 0; | |
1663 | ||
1664 | do { | |
1665 | c = scr_readw(s); | |
1666 | ||
1667 | if (c == scr_readw(d)) { | |
1668 | if (s > start) { | |
1669 | ops->bmove(vc, info, line + ycount, x, | |
1670 | line, x, 1, s-start); | |
1671 | x += s - start + 1; | |
1672 | start = s + 1; | |
1673 | } else { | |
1674 | x++; | |
1675 | start++; | |
1676 | } | |
1677 | } | |
1678 | ||
1679 | scr_writew(c, d); | |
1680 | console_conditional_schedule(); | |
1681 | s++; | |
1682 | d++; | |
1683 | } while (s < le); | |
1684 | if (s > start) | |
1685 | ops->bmove(vc, info, line + ycount, x, line, x, 1, | |
1686 | s-start); | |
1687 | console_conditional_schedule(); | |
1688 | if (ycount > 0) | |
1689 | line++; | |
1690 | else { | |
1691 | line--; | |
1692 | /* NOTE: We subtract two lines from these pointers */ | |
1693 | s -= vc->vc_size_row; | |
1694 | d -= vc->vc_size_row; | |
1695 | } | |
1696 | } | |
1697 | } | |
1698 | ||
1da177e4 LT |
1699 | static void fbcon_redraw(struct vc_data *vc, struct display *p, |
1700 | int line, int count, int offset) | |
1701 | { | |
1702 | unsigned short *d = (unsigned short *) | |
1703 | (vc->vc_origin + vc->vc_size_row * line); | |
1704 | unsigned short *s = d + offset; | |
1705 | ||
1706 | while (count--) { | |
1707 | unsigned short *start = s; | |
1708 | unsigned short *le = advance_row(s, 1); | |
1709 | unsigned short c; | |
1710 | int x = 0; | |
1711 | unsigned short attr = 1; | |
1712 | ||
1713 | do { | |
1714 | c = scr_readw(s); | |
1715 | if (attr != (c & 0xff00)) { | |
1716 | attr = c & 0xff00; | |
1717 | if (s > start) { | |
1718 | fbcon_putcs(vc, start, s - start, | |
1719 | line, x); | |
1720 | x += s - start; | |
1721 | start = s; | |
1722 | } | |
1723 | } | |
1724 | if (c == scr_readw(d)) { | |
1725 | if (s > start) { | |
1726 | fbcon_putcs(vc, start, s - start, | |
1727 | line, x); | |
1728 | x += s - start + 1; | |
1729 | start = s + 1; | |
1730 | } else { | |
1731 | x++; | |
1732 | start++; | |
1733 | } | |
1734 | } | |
1735 | scr_writew(c, d); | |
1736 | console_conditional_schedule(); | |
1737 | s++; | |
1738 | d++; | |
1739 | } while (s < le); | |
1740 | if (s > start) | |
1741 | fbcon_putcs(vc, start, s - start, line, x); | |
1742 | console_conditional_schedule(); | |
1743 | if (offset > 0) | |
1744 | line++; | |
1745 | else { | |
1746 | line--; | |
1747 | /* NOTE: We subtract two lines from these pointers */ | |
1748 | s -= vc->vc_size_row; | |
1749 | d -= vc->vc_size_row; | |
1750 | } | |
1751 | } | |
1752 | } | |
1753 | ||
1754 | static inline void fbcon_softback_note(struct vc_data *vc, int t, | |
1755 | int count) | |
1756 | { | |
1757 | unsigned short *p; | |
1758 | ||
1759 | if (vc->vc_num != fg_console) | |
1760 | return; | |
1761 | p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); | |
1762 | ||
1763 | while (count) { | |
1764 | scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); | |
1765 | count--; | |
1766 | p = advance_row(p, 1); | |
1767 | softback_in += vc->vc_size_row; | |
1768 | if (softback_in == softback_end) | |
1769 | softback_in = softback_buf; | |
1770 | if (softback_in == softback_top) { | |
1771 | softback_top += vc->vc_size_row; | |
1772 | if (softback_top == softback_end) | |
1773 | softback_top = softback_buf; | |
1774 | } | |
1775 | } | |
1776 | softback_curr = softback_in; | |
1777 | } | |
1778 | ||
1779 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
1780 | int count) | |
1781 | { | |
1782 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1783 | struct display *p = &fb_display[vc->vc_num]; | |
1da177e4 LT |
1784 | int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; |
1785 | ||
1786 | if (fbcon_is_inactive(vc, info)) | |
1787 | return -EINVAL; | |
1788 | ||
1789 | fbcon_cursor(vc, CM_ERASE); | |
1790 | ||
1791 | /* | |
1792 | * ++Geert: Only use ywrap/ypan if the console is in text mode | |
1793 | * ++Andrew: Only use ypan on hardware text mode when scrolling the | |
1794 | * whole screen (prevents flicker). | |
1795 | */ | |
1796 | ||
1797 | switch (dir) { | |
1798 | case SM_UP: | |
1799 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1800 | count = vc->vc_rows; | |
1801 | if (softback_top) | |
1802 | fbcon_softback_note(vc, t, count); | |
1803 | if (logo_shown >= 0) | |
1804 | goto redraw_up; | |
1805 | switch (p->scrollmode) { | |
1806 | case SCROLL_MOVE: | |
bad07ff7 KH |
1807 | fbcon_redraw_blit(vc, info, p, t, b - t - count, |
1808 | count); | |
1809 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1810 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1811 | vc->vc_size_row * | |
1812 | (b - count)), | |
93f78da4 | 1813 | vc->vc_video_erase_char, |
bad07ff7 | 1814 | vc->vc_size_row * count); |
93f78da4 | 1815 | return 1; |
1da177e4 LT |
1816 | break; |
1817 | ||
1818 | case SCROLL_WRAP_MOVE: | |
1819 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1820 | if (t > 0) | |
1821 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1822 | vc->vc_cols); | |
1823 | ywrap_up(vc, count); | |
1824 | if (vc->vc_rows - b > 0) | |
1825 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1826 | vc->vc_rows - b, | |
1827 | vc->vc_cols); | |
1828 | } else if (info->flags & FBINFO_READS_FAST) | |
1829 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1830 | b - t - count, vc->vc_cols); | |
1831 | else | |
1832 | goto redraw_up; | |
1833 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1834 | break; | |
1835 | ||
1836 | case SCROLL_PAN_REDRAW: | |
1837 | if ((p->yscroll + count <= | |
1838 | 2 * (p->vrows - vc->vc_rows)) | |
1839 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1840 | || (scroll_partial | |
1841 | && (b - t - count > | |
1842 | 3 * vc->vc_rows >> 2)))) { | |
1843 | if (t > 0) | |
1844 | fbcon_redraw_move(vc, p, 0, t, count); | |
1845 | ypan_up_redraw(vc, t, count); | |
1846 | if (vc->vc_rows - b > 0) | |
26e780e8 | 1847 | fbcon_redraw_move(vc, p, b, |
1da177e4 LT |
1848 | vc->vc_rows - b, b); |
1849 | } else | |
1850 | fbcon_redraw_move(vc, p, t + count, b - t - count, t); | |
1851 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1852 | break; | |
1853 | ||
1854 | case SCROLL_PAN_MOVE: | |
1855 | if ((p->yscroll + count <= | |
1856 | 2 * (p->vrows - vc->vc_rows)) | |
1857 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1858 | || (scroll_partial | |
1859 | && (b - t - count > | |
1860 | 3 * vc->vc_rows >> 2)))) { | |
1861 | if (t > 0) | |
1862 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1863 | vc->vc_cols); | |
1864 | ypan_up(vc, count); | |
1865 | if (vc->vc_rows - b > 0) | |
1866 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1867 | vc->vc_rows - b, | |
1868 | vc->vc_cols); | |
1869 | } else if (info->flags & FBINFO_READS_FAST) | |
1870 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1871 | b - t - count, vc->vc_cols); | |
1872 | else | |
1873 | goto redraw_up; | |
1874 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1875 | break; | |
1876 | ||
1877 | case SCROLL_REDRAW: | |
1878 | redraw_up: | |
1879 | fbcon_redraw(vc, p, t, b - t - count, | |
1880 | count * vc->vc_cols); | |
1881 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1882 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1883 | vc->vc_size_row * | |
1884 | (b - count)), | |
93f78da4 | 1885 | vc->vc_video_erase_char, |
1da177e4 | 1886 | vc->vc_size_row * count); |
93f78da4 | 1887 | return 1; |
1da177e4 LT |
1888 | } |
1889 | break; | |
1890 | ||
1891 | case SM_DOWN: | |
1892 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1893 | count = vc->vc_rows; | |
e703ecc3 JB |
1894 | if (logo_shown >= 0) |
1895 | goto redraw_down; | |
1da177e4 LT |
1896 | switch (p->scrollmode) { |
1897 | case SCROLL_MOVE: | |
bad07ff7 KH |
1898 | fbcon_redraw_blit(vc, info, p, b - 1, b - t - count, |
1899 | -count); | |
1900 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1901 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1902 | vc->vc_size_row * | |
1903 | t), | |
93f78da4 | 1904 | vc->vc_video_erase_char, |
bad07ff7 | 1905 | vc->vc_size_row * count); |
93f78da4 | 1906 | return 1; |
1da177e4 LT |
1907 | break; |
1908 | ||
1909 | case SCROLL_WRAP_MOVE: | |
1910 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1911 | if (vc->vc_rows - b > 0) | |
1912 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1913 | vc->vc_rows - b, | |
1914 | vc->vc_cols); | |
1915 | ywrap_down(vc, count); | |
1916 | if (t > 0) | |
1917 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1918 | vc->vc_cols); | |
1919 | } else if (info->flags & FBINFO_READS_FAST) | |
1920 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1921 | b - t - count, vc->vc_cols); | |
1922 | else | |
1923 | goto redraw_down; | |
1924 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1925 | break; | |
1926 | ||
1927 | case SCROLL_PAN_MOVE: | |
1928 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1929 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1930 | || (scroll_partial | |
1931 | && (b - t - count > | |
1932 | 3 * vc->vc_rows >> 2)))) { | |
1933 | if (vc->vc_rows - b > 0) | |
1934 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1935 | vc->vc_rows - b, | |
1936 | vc->vc_cols); | |
1937 | ypan_down(vc, count); | |
1938 | if (t > 0) | |
1939 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1940 | vc->vc_cols); | |
1941 | } else if (info->flags & FBINFO_READS_FAST) | |
1942 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1943 | b - t - count, vc->vc_cols); | |
1944 | else | |
1945 | goto redraw_down; | |
1946 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1947 | break; | |
1948 | ||
1949 | case SCROLL_PAN_REDRAW: | |
1950 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1951 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1952 | || (scroll_partial | |
1953 | && (b - t - count > | |
1954 | 3 * vc->vc_rows >> 2)))) { | |
1955 | if (vc->vc_rows - b > 0) | |
1956 | fbcon_redraw_move(vc, p, b, vc->vc_rows - b, | |
1957 | b - count); | |
1958 | ypan_down_redraw(vc, t, count); | |
1959 | if (t > 0) | |
1960 | fbcon_redraw_move(vc, p, count, t, 0); | |
1961 | } else | |
1962 | fbcon_redraw_move(vc, p, t, b - t - count, t + count); | |
1963 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1964 | break; | |
1965 | ||
1966 | case SCROLL_REDRAW: | |
1967 | redraw_down: | |
1968 | fbcon_redraw(vc, p, b - 1, b - t - count, | |
1969 | -count * vc->vc_cols); | |
1970 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1971 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1972 | vc->vc_size_row * | |
1973 | t), | |
93f78da4 | 1974 | vc->vc_video_erase_char, |
1da177e4 | 1975 | vc->vc_size_row * count); |
93f78da4 | 1976 | return 1; |
1da177e4 LT |
1977 | } |
1978 | } | |
93f78da4 | 1979 | return 0; |
1da177e4 LT |
1980 | } |
1981 | ||
1982 | ||
1983 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
1984 | int height, int width) | |
1985 | { | |
1986 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1987 | struct display *p = &fb_display[vc->vc_num]; | |
1988 | ||
1989 | if (fbcon_is_inactive(vc, info)) | |
1990 | return; | |
1991 | ||
1992 | if (!width || !height) | |
1993 | return; | |
1994 | ||
1995 | /* Split blits that cross physical y_wrap case. | |
1996 | * Pathological case involves 4 blits, better to use recursive | |
1997 | * code rather than unrolled case | |
1998 | * | |
1999 | * Recursive invocations don't need to erase the cursor over and | |
2000 | * over again, so we use fbcon_bmove_rec() | |
2001 | */ | |
2002 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width, | |
2003 | p->vrows - p->yscroll); | |
2004 | } | |
2005 | ||
2006 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
2007 | int dy, int dx, int height, int width, u_int y_break) | |
2008 | { | |
2009 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2010 | struct fbcon_ops *ops = info->fbcon_par; | |
2011 | u_int b; | |
2012 | ||
2013 | if (sy < y_break && sy + height > y_break) { | |
2014 | b = y_break - sy; | |
2015 | if (dy < sy) { /* Avoid trashing self */ | |
2016 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2017 | y_break); | |
2018 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2019 | height - b, width, y_break); | |
2020 | } else { | |
2021 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2022 | height - b, width, y_break); | |
2023 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2024 | y_break); | |
2025 | } | |
2026 | return; | |
2027 | } | |
2028 | ||
2029 | if (dy < y_break && dy + height > y_break) { | |
2030 | b = y_break - dy; | |
2031 | if (dy < sy) { /* Avoid trashing self */ | |
2032 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2033 | y_break); | |
2034 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2035 | height - b, width, y_break); | |
2036 | } else { | |
2037 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2038 | height - b, width, y_break); | |
2039 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2040 | y_break); | |
2041 | } | |
2042 | return; | |
2043 | } | |
2044 | ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx, | |
2045 | height, width); | |
2046 | } | |
2047 | ||
def1be2d | 2048 | static void updatescrollmode(struct display *p, |
e4fc2761 | 2049 | struct fb_info *info, |
1da177e4 LT |
2050 | struct vc_data *vc) |
2051 | { | |
e4fc2761 | 2052 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2053 | int fh = vc->vc_font.height; |
2054 | int cap = info->flags; | |
e4fc2761 AD |
2055 | u16 t = 0; |
2056 | int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep, | |
2057 | info->fix.xpanstep); | |
2058 | int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t); | |
2059 | int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2060 | int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual, | |
2061 | info->var.xres_virtual); | |
2062 | int good_pan = (cap & FBINFO_HWACCEL_YPAN) && | |
2063 | divides(ypan, vc->vc_font.height) && vyres > yres; | |
2064 | int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) && | |
2065 | divides(ywrap, vc->vc_font.height) && | |
244ab72d KP |
2066 | divides(vc->vc_font.height, vyres) && |
2067 | divides(vc->vc_font.height, yres); | |
1da177e4 | 2068 | int reading_fast = cap & FBINFO_READS_FAST; |
e4fc2761 AD |
2069 | int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) && |
2070 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2071 | int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) && | |
2072 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2073 | ||
2074 | p->vrows = vyres/fh; | |
2075 | if (yres > (fh * (vc->vc_rows + 1))) | |
2076 | p->vrows -= (yres - (fh * vc->vc_rows)) / fh; | |
2077 | if ((yres % fh) && (vyres % fh < yres % fh)) | |
1da177e4 LT |
2078 | p->vrows--; |
2079 | ||
2080 | if (good_wrap || good_pan) { | |
2081 | if (reading_fast || fast_copyarea) | |
e4fc2761 AD |
2082 | p->scrollmode = good_wrap ? |
2083 | SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE; | |
1da177e4 LT |
2084 | else |
2085 | p->scrollmode = good_wrap ? SCROLL_REDRAW : | |
2086 | SCROLL_PAN_REDRAW; | |
2087 | } else { | |
2088 | if (reading_fast || (fast_copyarea && !fast_imageblit)) | |
2089 | p->scrollmode = SCROLL_MOVE; | |
2090 | else | |
2091 | p->scrollmode = SCROLL_REDRAW; | |
2092 | } | |
2093 | } | |
2094 | ||
2095 | static int fbcon_resize(struct vc_data *vc, unsigned int width, | |
e400b6ec | 2096 | unsigned int height, unsigned int user) |
1da177e4 LT |
2097 | { |
2098 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2099 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2100 | struct display *p = &fb_display[vc->vc_num]; |
2101 | struct fb_var_screeninfo var = info->var; | |
e4fc2761 AD |
2102 | int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; |
2103 | ||
2104 | virt_w = FBCON_SWAP(ops->rotate, width, height); | |
2105 | virt_h = FBCON_SWAP(ops->rotate, height, width); | |
2106 | virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, | |
2107 | vc->vc_font.height); | |
2108 | virt_fh = FBCON_SWAP(ops->rotate, vc->vc_font.height, | |
2109 | vc->vc_font.width); | |
2110 | var.xres = virt_w * virt_fw; | |
2111 | var.yres = virt_h * virt_fh; | |
1da177e4 LT |
2112 | x_diff = info->var.xres - var.xres; |
2113 | y_diff = info->var.yres - var.yres; | |
e4fc2761 AD |
2114 | if (x_diff < 0 || x_diff > virt_fw || |
2115 | y_diff < 0 || y_diff > virt_fh) { | |
9791d763 | 2116 | const struct fb_videomode *mode; |
1da177e4 LT |
2117 | |
2118 | DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); | |
2119 | mode = fb_find_best_mode(&var, &info->modelist); | |
2120 | if (mode == NULL) | |
2121 | return -EINVAL; | |
3084a895 | 2122 | display_to_var(&var, p); |
1da177e4 | 2123 | fb_videomode_to_var(&var, mode); |
3084a895 | 2124 | |
e4fc2761 | 2125 | if (virt_w > var.xres/virt_fw || virt_h > var.yres/virt_fh) |
1da177e4 | 2126 | return -EINVAL; |
1da177e4 LT |
2127 | |
2128 | DPRINTK("resize now %ix%i\n", var.xres, var.yres); | |
2129 | if (CON_IS_VISIBLE(vc)) { | |
2130 | var.activate = FB_ACTIVATE_NOW | | |
2131 | FB_ACTIVATE_FORCE; | |
2132 | fb_set_var(info, &var); | |
2133 | } | |
2134 | var_to_display(p, &info->var, info); | |
e4fc2761 | 2135 | ops->var = info->var; |
1da177e4 LT |
2136 | } |
2137 | updatescrollmode(p, info, vc); | |
2138 | return 0; | |
2139 | } | |
2140 | ||
2141 | static int fbcon_switch(struct vc_data *vc) | |
2142 | { | |
88fb2c6e | 2143 | struct fb_info *info, *old_info = NULL; |
e4fc2761 | 2144 | struct fbcon_ops *ops; |
1da177e4 LT |
2145 | struct display *p = &fb_display[vc->vc_num]; |
2146 | struct fb_var_screeninfo var; | |
0fcf6ada | 2147 | int i, ret, prev_console, charcnt = 256; |
1da177e4 LT |
2148 | |
2149 | info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2150 | ops = info->fbcon_par; |
1da177e4 LT |
2151 | |
2152 | if (softback_top) { | |
1da177e4 LT |
2153 | if (softback_lines) |
2154 | fbcon_set_origin(vc); | |
2155 | softback_top = softback_curr = softback_in = softback_buf; | |
2156 | softback_lines = 0; | |
4d9c5b6e | 2157 | fbcon_update_softback(vc); |
1da177e4 LT |
2158 | } |
2159 | ||
2160 | if (logo_shown >= 0) { | |
2161 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2162 | ||
2163 | if (conp2->vc_top == logo_lines | |
2164 | && conp2->vc_bottom == conp2->vc_rows) | |
2165 | conp2->vc_top = 0; | |
2166 | logo_shown = FBCON_LOGO_CANSHOW; | |
2167 | } | |
2168 | ||
e4fc2761 | 2169 | prev_console = ops->currcon; |
88fb2c6e AD |
2170 | if (prev_console != -1) |
2171 | old_info = registered_fb[con2fb_map[prev_console]]; | |
1da177e4 LT |
2172 | /* |
2173 | * FIXME: If we have multiple fbdev's loaded, we need to | |
2174 | * update all info->currcon. Perhaps, we can place this | |
2175 | * in a centralized structure, but this might break some | |
2176 | * drivers. | |
2177 | * | |
2178 | * info->currcon = vc->vc_num; | |
2179 | */ | |
2180 | for (i = 0; i < FB_MAX; i++) { | |
2181 | if (registered_fb[i] != NULL && registered_fb[i]->fbcon_par) { | |
e4fc2761 | 2182 | struct fbcon_ops *o = registered_fb[i]->fbcon_par; |
1da177e4 | 2183 | |
e4fc2761 | 2184 | o->currcon = vc->vc_num; |
1da177e4 LT |
2185 | } |
2186 | } | |
2187 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); | |
2188 | display_to_var(&var, p); | |
2189 | var.activate = FB_ACTIVATE_NOW; | |
2190 | ||
2191 | /* | |
2192 | * make sure we don't unnecessarily trip the memcmp() | |
2193 | * in fb_set_var() | |
2194 | */ | |
2195 | info->var.activate = var.activate; | |
10732c35 | 2196 | var.vmode |= info->var.vmode & ~FB_VMODE_MASK; |
1da177e4 | 2197 | fb_set_var(info, &var); |
e4fc2761 | 2198 | ops->var = info->var; |
1da177e4 | 2199 | |
39942fd8 KP |
2200 | if (old_info != NULL && (old_info != info || |
2201 | info->flags & FBINFO_MISC_ALWAYS_SETPAR)) { | |
0fcf6ada FTS |
2202 | if (info->fbops->fb_set_par) { |
2203 | ret = info->fbops->fb_set_par(info); | |
2204 | ||
2205 | if (ret) | |
2206 | printk(KERN_ERR "fbcon_switch: detected " | |
2207 | "unhandled fb_set_par error, " | |
2208 | "error code %d\n", ret); | |
2209 | } | |
a39bc34e | 2210 | |
5428b044 | 2211 | if (old_info != info) |
a39bc34e | 2212 | fbcon_del_cursor_timer(old_info); |
88fb2c6e | 2213 | } |
1da177e4 | 2214 | |
212f2639 AD |
2215 | if (fbcon_is_inactive(vc, info) || |
2216 | ops->blank_state != FB_BLANK_UNBLANK) | |
2217 | fbcon_del_cursor_timer(info); | |
2218 | else | |
2219 | fbcon_add_cursor_timer(info); | |
2220 | ||
b73deed3 | 2221 | set_blitting_type(vc, info); |
e4fc2761 AD |
2222 | ops->cursor_reset = 1; |
2223 | ||
b73deed3 | 2224 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 2225 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 2226 | set_blitting_type(vc, info); |
e4fc2761 | 2227 | } |
1da177e4 | 2228 | |
b8c90945 | 2229 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 | 2230 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
56f0d64d AD |
2231 | |
2232 | if (p->userfont) | |
2233 | charcnt = FNTCHARCNT(vc->vc_font.data); | |
2234 | ||
2235 | if (charcnt > 256) | |
2236 | vc->vc_complement_mask <<= 1; | |
2237 | ||
1da177e4 LT |
2238 | updatescrollmode(p, info, vc); |
2239 | ||
2240 | switch (p->scrollmode) { | |
2241 | case SCROLL_WRAP_MOVE: | |
2242 | scrollback_phys_max = p->vrows - vc->vc_rows; | |
2243 | break; | |
2244 | case SCROLL_PAN_MOVE: | |
2245 | case SCROLL_PAN_REDRAW: | |
2246 | scrollback_phys_max = p->vrows - 2 * vc->vc_rows; | |
2247 | if (scrollback_phys_max < 0) | |
2248 | scrollback_phys_max = 0; | |
2249 | break; | |
2250 | default: | |
2251 | scrollback_phys_max = 0; | |
2252 | break; | |
2253 | } | |
e4fc2761 | 2254 | |
1da177e4 LT |
2255 | scrollback_max = 0; |
2256 | scrollback_current = 0; | |
4e1567d3 AD |
2257 | |
2258 | if (!fbcon_is_inactive(vc, info)) { | |
2259 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2260 | ops->update_start(info); | |
2261 | } | |
2262 | ||
1da177e4 LT |
2263 | fbcon_set_palette(vc, color_table); |
2264 | fbcon_clear_margins(vc, 0); | |
2265 | ||
2266 | if (logo_shown == FBCON_LOGO_DRAW) { | |
2267 | ||
2268 | logo_shown = fg_console; | |
2269 | /* This is protected above by initmem_freed */ | |
9c44e5f6 | 2270 | fb_show_logo(info, ops->rotate); |
1da177e4 LT |
2271 | update_region(vc, |
2272 | vc->vc_origin + vc->vc_size_row * vc->vc_top, | |
2273 | vc->vc_size_row * (vc->vc_bottom - | |
2274 | vc->vc_top) / 2); | |
2275 | return 0; | |
2276 | } | |
2277 | return 1; | |
2278 | } | |
2279 | ||
2280 | static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, | |
2281 | int blank) | |
2282 | { | |
994efacd RP |
2283 | struct fb_event event; |
2284 | ||
1da177e4 LT |
2285 | if (blank) { |
2286 | unsigned short charmask = vc->vc_hi_font_mask ? | |
2287 | 0x1ff : 0xff; | |
2288 | unsigned short oldc; | |
2289 | ||
2290 | oldc = vc->vc_video_erase_char; | |
2291 | vc->vc_video_erase_char &= charmask; | |
2292 | fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); | |
2293 | vc->vc_video_erase_char = oldc; | |
2294 | } | |
994efacd RP |
2295 | |
2296 | ||
513adb58 AR |
2297 | if (!lock_fb_info(info)) |
2298 | return; | |
994efacd RP |
2299 | event.info = info; |
2300 | event.data = ␣ | |
2301 | fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); | |
513adb58 | 2302 | unlock_fb_info(info); |
1da177e4 LT |
2303 | } |
2304 | ||
2305 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) | |
2306 | { | |
2307 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2308 | struct fbcon_ops *ops = info->fbcon_par; | |
2309 | ||
2310 | if (mode_switch) { | |
2311 | struct fb_var_screeninfo var = info->var; | |
2312 | ||
2313 | ops->graphics = 1; | |
2314 | ||
2315 | if (!blank) { | |
2316 | var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; | |
2317 | fb_set_var(info, &var); | |
2318 | ops->graphics = 0; | |
e4fc2761 | 2319 | ops->var = info->var; |
f5c15d0b | 2320 | } |
1da177e4 LT |
2321 | } |
2322 | ||
2323 | if (!fbcon_is_inactive(vc, info)) { | |
2324 | if (ops->blank_state != blank) { | |
2325 | ops->blank_state = blank; | |
2326 | fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); | |
2327 | ops->cursor_flash = (!blank); | |
2328 | ||
bca404af DB |
2329 | if (!(info->flags & FBINFO_MISC_USEREVENT)) |
2330 | if (fb_blank(info, blank)) | |
2331 | fbcon_generic_blank(vc, info, blank); | |
1da177e4 LT |
2332 | } |
2333 | ||
88fb2c6e AD |
2334 | if (!blank) |
2335 | update_screen(vc); | |
2336 | } | |
2337 | ||
4d8a2d98 | 2338 | if (mode_switch || fbcon_is_inactive(vc, info) || |
212f2639 | 2339 | ops->blank_state != FB_BLANK_UNBLANK) |
88fb2c6e | 2340 | fbcon_del_cursor_timer(info); |
212f2639 AD |
2341 | else |
2342 | fbcon_add_cursor_timer(info); | |
1da177e4 | 2343 | |
88fb2c6e | 2344 | return 0; |
1da177e4 LT |
2345 | } |
2346 | ||
d219adc1 JB |
2347 | static int fbcon_debug_enter(struct vc_data *vc) |
2348 | { | |
2349 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2350 | struct fbcon_ops *ops = info->fbcon_par; | |
2351 | ||
2352 | ops->save_graphics = ops->graphics; | |
2353 | ops->graphics = 0; | |
2354 | if (info->fbops->fb_debug_enter) | |
2355 | info->fbops->fb_debug_enter(info); | |
2356 | fbcon_set_palette(vc, color_table); | |
2357 | return 0; | |
2358 | } | |
2359 | ||
2360 | static int fbcon_debug_leave(struct vc_data *vc) | |
2361 | { | |
2362 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2363 | struct fbcon_ops *ops = info->fbcon_par; | |
2364 | ||
2365 | ops->graphics = ops->save_graphics; | |
2366 | if (info->fbops->fb_debug_leave) | |
2367 | info->fbops->fb_debug_leave(info); | |
2368 | return 0; | |
2369 | } | |
2370 | ||
1da177e4 LT |
2371 | static int fbcon_get_font(struct vc_data *vc, struct console_font *font) |
2372 | { | |
2373 | u8 *fontdata = vc->vc_font.data; | |
2374 | u8 *data = font->data; | |
2375 | int i, j; | |
2376 | ||
2377 | font->width = vc->vc_font.width; | |
2378 | font->height = vc->vc_font.height; | |
2379 | font->charcount = vc->vc_hi_font_mask ? 512 : 256; | |
2380 | if (!font->data) | |
2381 | return 0; | |
2382 | ||
2383 | if (font->width <= 8) { | |
2384 | j = vc->vc_font.height; | |
2385 | for (i = 0; i < font->charcount; i++) { | |
2386 | memcpy(data, fontdata, j); | |
2387 | memset(data + j, 0, 32 - j); | |
2388 | data += 32; | |
2389 | fontdata += j; | |
2390 | } | |
2391 | } else if (font->width <= 16) { | |
2392 | j = vc->vc_font.height * 2; | |
2393 | for (i = 0; i < font->charcount; i++) { | |
2394 | memcpy(data, fontdata, j); | |
2395 | memset(data + j, 0, 64 - j); | |
2396 | data += 64; | |
2397 | fontdata += j; | |
2398 | } | |
2399 | } else if (font->width <= 24) { | |
2400 | for (i = 0; i < font->charcount; i++) { | |
2401 | for (j = 0; j < vc->vc_font.height; j++) { | |
2402 | *data++ = fontdata[0]; | |
2403 | *data++ = fontdata[1]; | |
2404 | *data++ = fontdata[2]; | |
2405 | fontdata += sizeof(u32); | |
2406 | } | |
2407 | memset(data, 0, 3 * (32 - j)); | |
2408 | data += 3 * (32 - j); | |
2409 | } | |
2410 | } else { | |
2411 | j = vc->vc_font.height * 4; | |
2412 | for (i = 0; i < font->charcount; i++) { | |
2413 | memcpy(data, fontdata, j); | |
2414 | memset(data + j, 0, 128 - j); | |
2415 | data += 128; | |
2416 | fontdata += j; | |
2417 | } | |
2418 | } | |
2419 | return 0; | |
2420 | } | |
2421 | ||
2422 | static int fbcon_do_set_font(struct vc_data *vc, int w, int h, | |
2f4516db | 2423 | const u8 * data, int userfont) |
1da177e4 LT |
2424 | { |
2425 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2426 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2427 | struct display *p = &fb_display[vc->vc_num]; |
2428 | int resize; | |
2429 | int cnt; | |
2430 | char *old_data = NULL; | |
2431 | ||
2432 | if (CON_IS_VISIBLE(vc) && softback_lines) | |
2433 | fbcon_set_origin(vc); | |
2434 | ||
2435 | resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); | |
2436 | if (p->userfont) | |
2437 | old_data = vc->vc_font.data; | |
2438 | if (userfont) | |
2439 | cnt = FNTCHARCNT(data); | |
2440 | else | |
2441 | cnt = 256; | |
2f4516db | 2442 | vc->vc_font.data = (void *)(p->fontdata = data); |
1da177e4 LT |
2443 | if ((p->userfont = userfont)) |
2444 | REFCOUNT(data)++; | |
2445 | vc->vc_font.width = w; | |
2446 | vc->vc_font.height = h; | |
2447 | if (vc->vc_hi_font_mask && cnt == 256) { | |
2448 | vc->vc_hi_font_mask = 0; | |
2449 | if (vc->vc_can_do_color) { | |
2450 | vc->vc_complement_mask >>= 1; | |
2451 | vc->vc_s_complement_mask >>= 1; | |
2452 | } | |
2453 | ||
2454 | /* ++Edmund: reorder the attribute bits */ | |
2455 | if (vc->vc_can_do_color) { | |
2456 | unsigned short *cp = | |
2457 | (unsigned short *) vc->vc_origin; | |
2458 | int count = vc->vc_screenbuf_size / 2; | |
2459 | unsigned short c; | |
2460 | for (; count > 0; count--, cp++) { | |
2461 | c = scr_readw(cp); | |
2462 | scr_writew(((c & 0xfe00) >> 1) | | |
2463 | (c & 0xff), cp); | |
2464 | } | |
2465 | c = vc->vc_video_erase_char; | |
2466 | vc->vc_video_erase_char = | |
2467 | ((c & 0xfe00) >> 1) | (c & 0xff); | |
2468 | vc->vc_attr >>= 1; | |
2469 | } | |
2470 | } else if (!vc->vc_hi_font_mask && cnt == 512) { | |
2471 | vc->vc_hi_font_mask = 0x100; | |
2472 | if (vc->vc_can_do_color) { | |
2473 | vc->vc_complement_mask <<= 1; | |
2474 | vc->vc_s_complement_mask <<= 1; | |
2475 | } | |
2476 | ||
2477 | /* ++Edmund: reorder the attribute bits */ | |
2478 | { | |
2479 | unsigned short *cp = | |
2480 | (unsigned short *) vc->vc_origin; | |
2481 | int count = vc->vc_screenbuf_size / 2; | |
2482 | unsigned short c; | |
2483 | for (; count > 0; count--, cp++) { | |
2484 | unsigned short newc; | |
2485 | c = scr_readw(cp); | |
2486 | if (vc->vc_can_do_color) | |
2487 | newc = | |
2488 | ((c & 0xff00) << 1) | (c & | |
2489 | 0xff); | |
2490 | else | |
2491 | newc = c & ~0x100; | |
2492 | scr_writew(newc, cp); | |
2493 | } | |
2494 | c = vc->vc_video_erase_char; | |
2495 | if (vc->vc_can_do_color) { | |
2496 | vc->vc_video_erase_char = | |
2497 | ((c & 0xff00) << 1) | (c & 0xff); | |
2498 | vc->vc_attr <<= 1; | |
93f78da4 | 2499 | } else |
1da177e4 LT |
2500 | vc->vc_video_erase_char = c & ~0x100; |
2501 | } | |
2502 | ||
2503 | } | |
2504 | ||
2505 | if (resize) { | |
e4fc2761 AD |
2506 | int cols, rows; |
2507 | ||
2508 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); | |
2509 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2510 | cols /= w; | |
2511 | rows /= h; | |
2512 | vc_resize(vc, cols, rows); | |
4d9c5b6e AD |
2513 | if (CON_IS_VISIBLE(vc) && softback_buf) |
2514 | fbcon_update_softback(vc); | |
1da177e4 LT |
2515 | } else if (CON_IS_VISIBLE(vc) |
2516 | && vc->vc_mode == KD_TEXT) { | |
2517 | fbcon_clear_margins(vc, 0); | |
2518 | update_screen(vc); | |
2519 | } | |
2520 | ||
2521 | if (old_data && (--REFCOUNT(old_data) == 0)) | |
2522 | kfree(old_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2523 | return 0; | |
2524 | } | |
2525 | ||
2526 | static int fbcon_copy_font(struct vc_data *vc, int con) | |
2527 | { | |
2528 | struct display *od = &fb_display[con]; | |
2529 | struct console_font *f = &vc->vc_font; | |
2530 | ||
2531 | if (od->fontdata == f->data) | |
2532 | return 0; /* already the same font... */ | |
2533 | return fbcon_do_set_font(vc, f->width, f->height, od->fontdata, od->userfont); | |
2534 | } | |
2535 | ||
2536 | /* | |
2537 | * User asked to set font; we are guaranteed that | |
2538 | * a) width and height are in range 1..32 | |
2539 | * b) charcount does not exceed 512 | |
2540 | * but lets not assume that, since someone might someday want to use larger | |
2541 | * fonts. And charcount of 512 is small for unicode support. | |
2542 | * | |
2543 | * However, user space gives the font in 32 rows , regardless of | |
2544 | * actual font height. So a new API is needed if support for larger fonts | |
2545 | * is ever implemented. | |
2546 | */ | |
2547 | ||
2548 | static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) | |
2549 | { | |
2d2699d9 | 2550 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; |
1da177e4 LT |
2551 | unsigned charcount = font->charcount; |
2552 | int w = font->width; | |
2553 | int h = font->height; | |
2554 | int size; | |
2555 | int i, csum; | |
2556 | u8 *new_data, *data = font->data; | |
2557 | int pitch = (font->width+7) >> 3; | |
2558 | ||
2559 | /* Is there a reason why fbconsole couldn't handle any charcount >256? | |
2560 | * If not this check should be changed to charcount < 256 */ | |
2561 | if (charcount != 256 && charcount != 512) | |
2562 | return -EINVAL; | |
2563 | ||
2d2699d9 AD |
2564 | /* Make sure drawing engine can handle the font */ |
2565 | if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || | |
2566 | !(info->pixmap.blit_y & (1 << (font->height - 1)))) | |
2567 | return -EINVAL; | |
38b4982c AD |
2568 | |
2569 | /* Make sure driver can handle the font length */ | |
2570 | if (fbcon_invalid_charcount(info, charcount)) | |
2571 | return -EINVAL; | |
2d2699d9 | 2572 | |
1da177e4 LT |
2573 | size = h * pitch * charcount; |
2574 | ||
2575 | new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); | |
2576 | ||
2577 | if (!new_data) | |
2578 | return -ENOMEM; | |
2579 | ||
2580 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
2581 | FNTSIZE(new_data) = size; | |
2582 | FNTCHARCNT(new_data) = charcount; | |
2583 | REFCOUNT(new_data) = 0; /* usage counter */ | |
2584 | for (i=0; i< charcount; i++) { | |
2585 | memcpy(new_data + i*h*pitch, data + i*32*pitch, h*pitch); | |
2586 | } | |
2587 | ||
2588 | /* Since linux has a nice crc32 function use it for counting font | |
2589 | * checksums. */ | |
2590 | csum = crc32(0, new_data, size); | |
2591 | ||
2592 | FNTSUM(new_data) = csum; | |
2593 | /* Check if the same font is on some other console already */ | |
e614b18d | 2594 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
2595 | struct vc_data *tmp = vc_cons[i].d; |
2596 | ||
2597 | if (fb_display[i].userfont && | |
2598 | fb_display[i].fontdata && | |
2599 | FNTSUM(fb_display[i].fontdata) == csum && | |
2600 | FNTSIZE(fb_display[i].fontdata) == size && | |
2601 | tmp->vc_font.width == w && | |
2602 | !memcmp(fb_display[i].fontdata, new_data, size)) { | |
2603 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2f4516db | 2604 | new_data = (u8 *)fb_display[i].fontdata; |
1da177e4 LT |
2605 | break; |
2606 | } | |
2607 | } | |
2608 | return fbcon_do_set_font(vc, font->width, font->height, new_data, 1); | |
2609 | } | |
2610 | ||
2611 | static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name) | |
2612 | { | |
2613 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2f4516db | 2614 | const struct font_desc *f; |
1da177e4 LT |
2615 | |
2616 | if (!name) | |
2d2699d9 AD |
2617 | f = get_default_font(info->var.xres, info->var.yres, |
2618 | info->pixmap.blit_x, info->pixmap.blit_y); | |
1da177e4 LT |
2619 | else if (!(f = find_font(name))) |
2620 | return -ENOENT; | |
2621 | ||
2622 | font->width = f->width; | |
2623 | font->height = f->height; | |
2624 | return fbcon_do_set_font(vc, f->width, f->height, f->data, 0); | |
2625 | } | |
2626 | ||
2627 | static u16 palette_red[16]; | |
2628 | static u16 palette_green[16]; | |
2629 | static u16 palette_blue[16]; | |
2630 | ||
2631 | static struct fb_cmap palette_cmap = { | |
2632 | 0, 16, palette_red, palette_green, palette_blue, NULL | |
2633 | }; | |
2634 | ||
2635 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table) | |
2636 | { | |
2637 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2638 | int i, j, k, depth; | |
2639 | u8 val; | |
2640 | ||
2641 | if (fbcon_is_inactive(vc, info)) | |
2642 | return -EINVAL; | |
2643 | ||
2644 | if (!CON_IS_VISIBLE(vc)) | |
2645 | return 0; | |
2646 | ||
b8c90945 | 2647 | depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
2648 | if (depth > 3) { |
2649 | for (i = j = 0; i < 16; i++) { | |
2650 | k = table[i]; | |
2651 | val = vc->vc_palette[j++]; | |
2652 | palette_red[k] = (val << 8) | val; | |
2653 | val = vc->vc_palette[j++]; | |
2654 | palette_green[k] = (val << 8) | val; | |
2655 | val = vc->vc_palette[j++]; | |
2656 | palette_blue[k] = (val << 8) | val; | |
2657 | } | |
2658 | palette_cmap.len = 16; | |
2659 | palette_cmap.start = 0; | |
2660 | /* | |
2661 | * If framebuffer is capable of less than 16 colors, | |
2662 | * use default palette of fbcon. | |
2663 | */ | |
2664 | } else | |
2665 | fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); | |
2666 | ||
2667 | return fb_set_cmap(&palette_cmap, info); | |
2668 | } | |
2669 | ||
2670 | static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) | |
2671 | { | |
2672 | unsigned long p; | |
2673 | int line; | |
2674 | ||
2675 | if (vc->vc_num != fg_console || !softback_lines) | |
2676 | return (u16 *) (vc->vc_origin + offset); | |
2677 | line = offset / vc->vc_size_row; | |
2678 | if (line >= softback_lines) | |
2679 | return (u16 *) (vc->vc_origin + offset - | |
2680 | softback_lines * vc->vc_size_row); | |
2681 | p = softback_curr + offset; | |
2682 | if (p >= softback_end) | |
2683 | p += softback_buf - softback_end; | |
2684 | return (u16 *) p; | |
2685 | } | |
2686 | ||
2687 | static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, | |
2688 | int *px, int *py) | |
2689 | { | |
2690 | unsigned long ret; | |
2691 | int x, y; | |
2692 | ||
2693 | if (pos >= vc->vc_origin && pos < vc->vc_scr_end) { | |
2694 | unsigned long offset = (pos - vc->vc_origin) / 2; | |
2695 | ||
2696 | x = offset % vc->vc_cols; | |
2697 | y = offset / vc->vc_cols; | |
2698 | if (vc->vc_num == fg_console) | |
2699 | y += softback_lines; | |
2700 | ret = pos + (vc->vc_cols - x) * 2; | |
2701 | } else if (vc->vc_num == fg_console && softback_lines) { | |
2702 | unsigned long offset = pos - softback_curr; | |
2703 | ||
2704 | if (pos < softback_curr) | |
2705 | offset += softback_end - softback_buf; | |
2706 | offset /= 2; | |
2707 | x = offset % vc->vc_cols; | |
2708 | y = offset / vc->vc_cols; | |
2709 | ret = pos + (vc->vc_cols - x) * 2; | |
2710 | if (ret == softback_end) | |
2711 | ret = softback_buf; | |
2712 | if (ret == softback_in) | |
2713 | ret = vc->vc_origin; | |
2714 | } else { | |
2715 | /* Should not happen */ | |
2716 | x = y = 0; | |
2717 | ret = vc->vc_origin; | |
2718 | } | |
2719 | if (px) | |
2720 | *px = x; | |
2721 | if (py) | |
2722 | *py = y; | |
2723 | return ret; | |
2724 | } | |
2725 | ||
2726 | /* As we might be inside of softback, we may work with non-contiguous buffer, | |
2727 | that's why we have to use a separate routine. */ | |
2728 | static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) | |
2729 | { | |
2730 | while (cnt--) { | |
2731 | u16 a = scr_readw(p); | |
2732 | if (!vc->vc_can_do_color) | |
2733 | a ^= 0x0800; | |
2734 | else if (vc->vc_hi_font_mask == 0x100) | |
2735 | a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | | |
2736 | (((a) & 0x0e00) << 4); | |
2737 | else | |
2738 | a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | | |
2739 | (((a) & 0x0700) << 4); | |
2740 | scr_writew(a, p++); | |
2741 | if (p == (u16 *) softback_end) | |
2742 | p = (u16 *) softback_buf; | |
2743 | if (p == (u16 *) softback_in) | |
2744 | p = (u16 *) vc->vc_origin; | |
2745 | } | |
2746 | } | |
2747 | ||
2748 | static int fbcon_scrolldelta(struct vc_data *vc, int lines) | |
2749 | { | |
2750 | struct fb_info *info = registered_fb[con2fb_map[fg_console]]; | |
e4fc2761 | 2751 | struct fbcon_ops *ops = info->fbcon_par; |
2c6cc35c | 2752 | struct display *disp = &fb_display[fg_console]; |
1da177e4 LT |
2753 | int offset, limit, scrollback_old; |
2754 | ||
2755 | if (softback_top) { | |
2756 | if (vc->vc_num != fg_console) | |
2757 | return 0; | |
2758 | if (vc->vc_mode != KD_TEXT || !lines) | |
2759 | return 0; | |
2760 | if (logo_shown >= 0) { | |
2761 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2762 | ||
2763 | if (conp2->vc_top == logo_lines | |
2764 | && conp2->vc_bottom == conp2->vc_rows) | |
2765 | conp2->vc_top = 0; | |
2766 | if (logo_shown == vc->vc_num) { | |
2767 | unsigned long p, q; | |
2768 | int i; | |
2769 | ||
2770 | p = softback_in; | |
2771 | q = vc->vc_origin + | |
2772 | logo_lines * vc->vc_size_row; | |
2773 | for (i = 0; i < logo_lines; i++) { | |
2774 | if (p == softback_top) | |
2775 | break; | |
2776 | if (p == softback_buf) | |
2777 | p = softback_end; | |
2778 | p -= vc->vc_size_row; | |
2779 | q -= vc->vc_size_row; | |
2780 | scr_memcpyw((u16 *) q, (u16 *) p, | |
2781 | vc->vc_size_row); | |
2782 | } | |
308af929 | 2783 | softback_in = softback_curr = p; |
1da177e4 LT |
2784 | update_region(vc, vc->vc_origin, |
2785 | logo_lines * vc->vc_cols); | |
2786 | } | |
2787 | logo_shown = FBCON_LOGO_CANSHOW; | |
2788 | } | |
2789 | fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); | |
2c6cc35c | 2790 | fbcon_redraw_softback(vc, disp, lines); |
1da177e4 LT |
2791 | fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); |
2792 | return 0; | |
2793 | } | |
2794 | ||
2795 | if (!scrollback_phys_max) | |
2796 | return -ENOSYS; | |
2797 | ||
2798 | scrollback_old = scrollback_current; | |
2799 | scrollback_current -= lines; | |
2800 | if (scrollback_current < 0) | |
2801 | scrollback_current = 0; | |
2802 | else if (scrollback_current > scrollback_max) | |
2803 | scrollback_current = scrollback_max; | |
2804 | if (scrollback_current == scrollback_old) | |
2805 | return 0; | |
2806 | ||
2807 | if (fbcon_is_inactive(vc, info)) | |
2808 | return 0; | |
2809 | ||
2810 | fbcon_cursor(vc, CM_ERASE); | |
2811 | ||
2c6cc35c MS |
2812 | offset = disp->yscroll - scrollback_current; |
2813 | limit = disp->vrows; | |
2814 | switch (disp->scrollmode) { | |
1da177e4 LT |
2815 | case SCROLL_WRAP_MOVE: |
2816 | info->var.vmode |= FB_VMODE_YWRAP; | |
2817 | break; | |
2818 | case SCROLL_PAN_MOVE: | |
2819 | case SCROLL_PAN_REDRAW: | |
2820 | limit -= vc->vc_rows; | |
2821 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
2822 | break; | |
2823 | } | |
2824 | if (offset < 0) | |
2825 | offset += limit; | |
2826 | else if (offset >= limit) | |
2827 | offset -= limit; | |
e4fc2761 AD |
2828 | |
2829 | ops->var.xoffset = 0; | |
2830 | ops->var.yoffset = offset * vc->vc_font.height; | |
2831 | ops->update_start(info); | |
2832 | ||
1da177e4 LT |
2833 | if (!scrollback_current) |
2834 | fbcon_cursor(vc, CM_DRAW); | |
2835 | return 0; | |
2836 | } | |
2837 | ||
2838 | static int fbcon_set_origin(struct vc_data *vc) | |
2839 | { | |
2840 | if (softback_lines) | |
2841 | fbcon_scrolldelta(vc, softback_lines); | |
2842 | return 0; | |
2843 | } | |
2844 | ||
2845 | static void fbcon_suspended(struct fb_info *info) | |
2846 | { | |
2847 | struct vc_data *vc = NULL; | |
2848 | struct fbcon_ops *ops = info->fbcon_par; | |
2849 | ||
2850 | if (!ops || ops->currcon < 0) | |
2851 | return; | |
2852 | vc = vc_cons[ops->currcon].d; | |
2853 | ||
2854 | /* Clear cursor, restore saved data */ | |
2855 | fbcon_cursor(vc, CM_ERASE); | |
2856 | } | |
2857 | ||
2858 | static void fbcon_resumed(struct fb_info *info) | |
2859 | { | |
2860 | struct vc_data *vc; | |
2861 | struct fbcon_ops *ops = info->fbcon_par; | |
2862 | ||
2863 | if (!ops || ops->currcon < 0) | |
2864 | return; | |
2865 | vc = vc_cons[ops->currcon].d; | |
2866 | ||
2867 | update_screen(vc); | |
2868 | } | |
2869 | ||
2870 | static void fbcon_modechanged(struct fb_info *info) | |
2871 | { | |
2872 | struct fbcon_ops *ops = info->fbcon_par; | |
2873 | struct vc_data *vc; | |
2874 | struct display *p; | |
2875 | int rows, cols; | |
2876 | ||
2877 | if (!ops || ops->currcon < 0) | |
2878 | return; | |
2879 | vc = vc_cons[ops->currcon].d; | |
e4fc2761 AD |
2880 | if (vc->vc_mode != KD_TEXT || |
2881 | registered_fb[con2fb_map[ops->currcon]] != info) | |
1da177e4 LT |
2882 | return; |
2883 | ||
2884 | p = &fb_display[vc->vc_num]; | |
b73deed3 | 2885 | set_blitting_type(vc, info); |
1da177e4 LT |
2886 | |
2887 | if (CON_IS_VISIBLE(vc)) { | |
2888 | var_to_display(p, &info->var, info); | |
e4fc2761 AD |
2889 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2890 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2891 | cols /= vc->vc_font.width; | |
2892 | rows /= vc->vc_font.height; | |
1da177e4 LT |
2893 | vc_resize(vc, cols, rows); |
2894 | updatescrollmode(p, info, vc); | |
2895 | scrollback_max = 0; | |
2896 | scrollback_current = 0; | |
4e1567d3 AD |
2897 | |
2898 | if (!fbcon_is_inactive(vc, info)) { | |
2899 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2900 | ops->update_start(info); | |
2901 | } | |
2902 | ||
1da177e4 LT |
2903 | fbcon_set_palette(vc, color_table); |
2904 | update_screen(vc); | |
4d9c5b6e AD |
2905 | if (softback_buf) |
2906 | fbcon_update_softback(vc); | |
1da177e4 LT |
2907 | } |
2908 | } | |
2909 | ||
7726e9e1 AD |
2910 | static void fbcon_set_all_vcs(struct fb_info *info) |
2911 | { | |
2912 | struct fbcon_ops *ops = info->fbcon_par; | |
2913 | struct vc_data *vc; | |
2914 | struct display *p; | |
95d67bb1 | 2915 | int i, rows, cols, fg = -1; |
7726e9e1 AD |
2916 | |
2917 | if (!ops || ops->currcon < 0) | |
2918 | return; | |
2919 | ||
e614b18d | 2920 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
7726e9e1 AD |
2921 | vc = vc_cons[i].d; |
2922 | if (!vc || vc->vc_mode != KD_TEXT || | |
2923 | registered_fb[con2fb_map[i]] != info) | |
2924 | continue; | |
2925 | ||
95d67bb1 AD |
2926 | if (CON_IS_VISIBLE(vc)) { |
2927 | fg = i; | |
2928 | continue; | |
2929 | } | |
2930 | ||
7726e9e1 | 2931 | p = &fb_display[vc->vc_num]; |
b73deed3 | 2932 | set_blitting_type(vc, info); |
7726e9e1 | 2933 | var_to_display(p, &info->var, info); |
232fb69a ON |
2934 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2935 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
e4fc2761 AD |
2936 | cols /= vc->vc_font.width; |
2937 | rows /= vc->vc_font.height; | |
7726e9e1 | 2938 | vc_resize(vc, cols, rows); |
7726e9e1 | 2939 | } |
04a2fe57 | 2940 | |
95d67bb1 AD |
2941 | if (fg != -1) |
2942 | fbcon_modechanged(info); | |
7726e9e1 AD |
2943 | } |
2944 | ||
1da177e4 LT |
2945 | static int fbcon_mode_deleted(struct fb_info *info, |
2946 | struct fb_videomode *mode) | |
2947 | { | |
2948 | struct fb_info *fb_info; | |
2949 | struct display *p; | |
2950 | int i, j, found = 0; | |
2951 | ||
2952 | /* before deletion, ensure that mode is not in use */ | |
2953 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2954 | j = con2fb_map[i]; | |
2955 | if (j == -1) | |
2956 | continue; | |
2957 | fb_info = registered_fb[j]; | |
2958 | if (fb_info != info) | |
2959 | continue; | |
2960 | p = &fb_display[i]; | |
2961 | if (!p || !p->mode) | |
2962 | continue; | |
2963 | if (fb_mode_is_equal(p->mode, mode)) { | |
2964 | found = 1; | |
2965 | break; | |
2966 | } | |
2967 | } | |
2968 | return found; | |
2969 | } | |
2970 | ||
cfafca80 JB |
2971 | #ifdef CONFIG_VT_HW_CONSOLE_BINDING |
2972 | static int fbcon_unbind(void) | |
2973 | { | |
2974 | int ret; | |
2975 | ||
2976 | ret = unbind_con_driver(&fb_con, first_fb_vc, last_fb_vc, | |
2977 | fbcon_is_default); | |
2ddce3fd IA |
2978 | |
2979 | if (!ret) | |
2980 | fbcon_has_console_bind = 0; | |
2981 | ||
cfafca80 JB |
2982 | return ret; |
2983 | } | |
2984 | #else | |
2985 | static inline int fbcon_unbind(void) | |
2986 | { | |
2987 | return -EINVAL; | |
2988 | } | |
2989 | #endif /* CONFIG_VT_HW_CONSOLE_BINDING */ | |
2990 | ||
2991 | static int fbcon_fb_unbind(int idx) | |
2992 | { | |
2993 | int i, new_idx = -1, ret = 0; | |
2994 | ||
2ddce3fd IA |
2995 | if (!fbcon_has_console_bind) |
2996 | return 0; | |
2997 | ||
cfafca80 JB |
2998 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
2999 | if (con2fb_map[i] != idx && | |
3000 | con2fb_map[i] != -1) { | |
3001 | new_idx = i; | |
3002 | break; | |
3003 | } | |
3004 | } | |
3005 | ||
3006 | if (new_idx != -1) { | |
3007 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3008 | if (con2fb_map[i] == idx) | |
3009 | set_con2fb_map(i, new_idx, 0); | |
3010 | } | |
3011 | } else | |
3012 | ret = fbcon_unbind(); | |
3013 | ||
3014 | return ret; | |
3015 | } | |
3016 | ||
623e71b0 | 3017 | static int fbcon_fb_unregistered(struct fb_info *info) |
e614b18d | 3018 | { |
66c1ca01 | 3019 | int i, idx; |
e614b18d | 3020 | |
66c1ca01 | 3021 | idx = info->node; |
e614b18d AD |
3022 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
3023 | if (con2fb_map[i] == idx) | |
3024 | con2fb_map[i] = -1; | |
3025 | } | |
3026 | ||
3027 | if (idx == info_idx) { | |
3028 | info_idx = -1; | |
3029 | ||
3030 | for (i = 0; i < FB_MAX; i++) { | |
3031 | if (registered_fb[i] != NULL) { | |
3032 | info_idx = i; | |
3033 | break; | |
3034 | } | |
3035 | } | |
3036 | } | |
3037 | ||
3038 | if (info_idx != -1) { | |
3039 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3040 | if (con2fb_map[i] == -1) | |
3041 | con2fb_map[i] = info_idx; | |
3042 | } | |
3043 | } | |
3044 | ||
623e71b0 AD |
3045 | if (primary_device == idx) |
3046 | primary_device = -1; | |
3047 | ||
66c1ca01 AR |
3048 | if (!num_registered_fb) |
3049 | unregister_con_driver(&fb_con); | |
3050 | ||
623e71b0 AD |
3051 | return 0; |
3052 | } | |
3053 | ||
6a9ee8af DA |
3054 | static void fbcon_remap_all(int idx) |
3055 | { | |
3056 | int i; | |
3057 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
3058 | set_con2fb_map(i, idx, 0); | |
3059 | ||
3060 | if (con_is_bound(&fb_con)) { | |
3061 | printk(KERN_INFO "fbcon: Remapping primary device, " | |
3062 | "fb%i, to tty %i-%i\n", idx, | |
3063 | first_fb_vc + 1, last_fb_vc + 1); | |
3064 | info_idx = idx; | |
3065 | } | |
3066 | } | |
3067 | ||
623e71b0 | 3068 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY |
afd1db16 | 3069 | static void fbcon_select_primary(struct fb_info *info) |
623e71b0 | 3070 | { |
623e71b0 AD |
3071 | if (!map_override && primary_device == -1 && |
3072 | fb_is_primary_device(info)) { | |
afd1db16 | 3073 | int i; |
623e71b0 | 3074 | |
afd1db16 AD |
3075 | printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", |
3076 | info->fix.id, info->node); | |
623e71b0 AD |
3077 | primary_device = info->node; |
3078 | ||
afd1db16 | 3079 | for (i = first_fb_vc; i <= last_fb_vc; i++) |
623e71b0 | 3080 | con2fb_map_boot[i] = primary_device; |
623e71b0 | 3081 | |
afd1db16 AD |
3082 | if (con_is_bound(&fb_con)) { |
3083 | printk(KERN_INFO "fbcon: Remapping primary device, " | |
3084 | "fb%i, to tty %i-%i\n", info->node, | |
3085 | first_fb_vc + 1, last_fb_vc + 1); | |
3086 | info_idx = primary_device; | |
623e71b0 | 3087 | } |
623e71b0 AD |
3088 | } |
3089 | ||
623e71b0 AD |
3090 | } |
3091 | #else | |
afd1db16 | 3092 | static inline void fbcon_select_primary(struct fb_info *info) |
623e71b0 | 3093 | { |
afd1db16 | 3094 | return; |
e614b18d | 3095 | } |
623e71b0 | 3096 | #endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */ |
e614b18d | 3097 | |
623e71b0 | 3098 | static int fbcon_fb_registered(struct fb_info *info) |
1da177e4 | 3099 | { |
66c1ca01 | 3100 | int ret = 0, i, idx; |
623e71b0 | 3101 | |
66c1ca01 | 3102 | idx = info->node; |
afd1db16 | 3103 | fbcon_select_primary(info); |
1da177e4 LT |
3104 | |
3105 | if (info_idx == -1) { | |
e614b18d | 3106 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3107 | if (con2fb_map_boot[i] == idx) { |
3108 | info_idx = idx; | |
3109 | break; | |
3110 | } | |
3111 | } | |
e614b18d | 3112 | |
1da177e4 LT |
3113 | if (info_idx != -1) |
3114 | ret = fbcon_takeover(1); | |
3115 | } else { | |
e614b18d | 3116 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
d1baa4ff | 3117 | if (con2fb_map_boot[i] == idx) |
1da177e4 LT |
3118 | set_con2fb_map(i, idx, 0); |
3119 | } | |
3120 | } | |
3121 | ||
3122 | return ret; | |
3123 | } | |
3124 | ||
3125 | static void fbcon_fb_blanked(struct fb_info *info, int blank) | |
3126 | { | |
3127 | struct fbcon_ops *ops = info->fbcon_par; | |
3128 | struct vc_data *vc; | |
3129 | ||
3130 | if (!ops || ops->currcon < 0) | |
3131 | return; | |
3132 | ||
3133 | vc = vc_cons[ops->currcon].d; | |
3134 | if (vc->vc_mode != KD_TEXT || | |
3135 | registered_fb[con2fb_map[ops->currcon]] != info) | |
3136 | return; | |
3137 | ||
3138 | if (CON_IS_VISIBLE(vc)) { | |
3139 | if (blank) | |
3140 | do_blank_screen(0); | |
3141 | else | |
3142 | do_unblank_screen(0); | |
3143 | } | |
3144 | ops->blank_state = blank; | |
3145 | } | |
3146 | ||
3147 | static void fbcon_new_modelist(struct fb_info *info) | |
3148 | { | |
3149 | int i; | |
3150 | struct vc_data *vc; | |
3151 | struct fb_var_screeninfo var; | |
9791d763 | 3152 | const struct fb_videomode *mode; |
1da177e4 | 3153 | |
e614b18d | 3154 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3155 | if (registered_fb[con2fb_map[i]] != info) |
3156 | continue; | |
3157 | if (!fb_display[i].mode) | |
3158 | continue; | |
3159 | vc = vc_cons[i].d; | |
3160 | display_to_var(&var, &fb_display[i]); | |
8fb6567e MJ |
3161 | mode = fb_find_nearest_mode(fb_display[i].mode, |
3162 | &info->modelist); | |
1da177e4 | 3163 | fb_videomode_to_var(&var, mode); |
d1baa4ff | 3164 | fbcon_set_disp(info, &var, vc->vc_num); |
1da177e4 LT |
3165 | } |
3166 | } | |
3167 | ||
38a3dc51 AD |
3168 | static void fbcon_get_requirement(struct fb_info *info, |
3169 | struct fb_blit_caps *caps) | |
3170 | { | |
3171 | struct vc_data *vc; | |
3172 | struct display *p; | |
38a3dc51 AD |
3173 | |
3174 | if (caps->flags) { | |
167f07f1 | 3175 | int i, charcnt; |
38a3dc51 AD |
3176 | |
3177 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3178 | vc = vc_cons[i].d; | |
167f07f1 AD |
3179 | if (vc && vc->vc_mode == KD_TEXT && |
3180 | info->node == con2fb_map[i]) { | |
38a3dc51 AD |
3181 | p = &fb_display[i]; |
3182 | caps->x |= 1 << (vc->vc_font.width - 1); | |
3183 | caps->y |= 1 << (vc->vc_font.height - 1); | |
3184 | charcnt = (p->userfont) ? | |
3185 | FNTCHARCNT(p->fontdata) : 256; | |
3186 | if (caps->len < charcnt) | |
3187 | caps->len = charcnt; | |
3188 | } | |
3189 | } | |
3190 | } else { | |
3191 | vc = vc_cons[fg_console].d; | |
3192 | ||
167f07f1 AD |
3193 | if (vc && vc->vc_mode == KD_TEXT && |
3194 | info->node == con2fb_map[fg_console]) { | |
38a3dc51 | 3195 | p = &fb_display[fg_console]; |
167f07f1 AD |
3196 | caps->x = 1 << (vc->vc_font.width - 1); |
3197 | caps->y = 1 << (vc->vc_font.height - 1); | |
3198 | caps->len = (p->userfont) ? | |
38a3dc51 | 3199 | FNTCHARCNT(p->fontdata) : 256; |
38a3dc51 AD |
3200 | } |
3201 | } | |
3202 | } | |
3203 | ||
66c1ca01 | 3204 | static int fbcon_event_notify(struct notifier_block *self, |
1da177e4 LT |
3205 | unsigned long action, void *data) |
3206 | { | |
3207 | struct fb_event *event = data; | |
3208 | struct fb_info *info = event->info; | |
3209 | struct fb_videomode *mode; | |
3210 | struct fb_con2fbmap *con2fb; | |
38a3dc51 | 3211 | struct fb_blit_caps *caps; |
66c1ca01 | 3212 | int idx, ret = 0; |
1da177e4 | 3213 | |
e614b18d AD |
3214 | /* |
3215 | * ignore all events except driver registration and deregistration | |
3216 | * if fbcon is not active | |
3217 | */ | |
3218 | if (fbcon_has_exited && !(action == FB_EVENT_FB_REGISTERED || | |
3219 | action == FB_EVENT_FB_UNREGISTERED)) | |
3220 | goto done; | |
3221 | ||
1da177e4 LT |
3222 | switch(action) { |
3223 | case FB_EVENT_SUSPEND: | |
3224 | fbcon_suspended(info); | |
3225 | break; | |
3226 | case FB_EVENT_RESUME: | |
3227 | fbcon_resumed(info); | |
3228 | break; | |
3229 | case FB_EVENT_MODE_CHANGE: | |
3230 | fbcon_modechanged(info); | |
3231 | break; | |
7726e9e1 AD |
3232 | case FB_EVENT_MODE_CHANGE_ALL: |
3233 | fbcon_set_all_vcs(info); | |
3234 | break; | |
1da177e4 LT |
3235 | case FB_EVENT_MODE_DELETE: |
3236 | mode = event->data; | |
3237 | ret = fbcon_mode_deleted(info, mode); | |
3238 | break; | |
cfafca80 | 3239 | case FB_EVENT_FB_UNBIND: |
66c1ca01 | 3240 | idx = info->node; |
66c1ca01 | 3241 | ret = fbcon_fb_unbind(idx); |
cfafca80 | 3242 | break; |
1da177e4 | 3243 | case FB_EVENT_FB_REGISTERED: |
623e71b0 | 3244 | ret = fbcon_fb_registered(info); |
1da177e4 | 3245 | break; |
e614b18d | 3246 | case FB_EVENT_FB_UNREGISTERED: |
623e71b0 | 3247 | ret = fbcon_fb_unregistered(info); |
e614b18d | 3248 | break; |
1da177e4 LT |
3249 | case FB_EVENT_SET_CONSOLE_MAP: |
3250 | con2fb = event->data; | |
3251 | ret = set_con2fb_map(con2fb->console - 1, | |
3252 | con2fb->framebuffer, 1); | |
3253 | break; | |
3254 | case FB_EVENT_GET_CONSOLE_MAP: | |
3255 | con2fb = event->data; | |
3256 | con2fb->framebuffer = con2fb_map[con2fb->console - 1]; | |
3257 | break; | |
3258 | case FB_EVENT_BLANK: | |
3259 | fbcon_fb_blanked(info, *(int *)event->data); | |
3260 | break; | |
3261 | case FB_EVENT_NEW_MODELIST: | |
3262 | fbcon_new_modelist(info); | |
3263 | break; | |
38a3dc51 AD |
3264 | case FB_EVENT_GET_REQ: |
3265 | caps = event->data; | |
3266 | fbcon_get_requirement(info, caps); | |
3267 | break; | |
6a9ee8af DA |
3268 | case FB_EVENT_REMAP_ALL_CONSOLE: |
3269 | idx = info->node; | |
3270 | fbcon_remap_all(idx); | |
3271 | break; | |
1da177e4 | 3272 | } |
e614b18d | 3273 | done: |
1da177e4 LT |
3274 | return ret; |
3275 | } | |
3276 | ||
3277 | /* | |
3278 | * The console `switch' structure for the frame buffer based console | |
3279 | */ | |
3280 | ||
3281 | static const struct consw fb_con = { | |
3282 | .owner = THIS_MODULE, | |
3283 | .con_startup = fbcon_startup, | |
3284 | .con_init = fbcon_init, | |
3285 | .con_deinit = fbcon_deinit, | |
3286 | .con_clear = fbcon_clear, | |
3287 | .con_putc = fbcon_putc, | |
3288 | .con_putcs = fbcon_putcs, | |
3289 | .con_cursor = fbcon_cursor, | |
3290 | .con_scroll = fbcon_scroll, | |
3291 | .con_bmove = fbcon_bmove, | |
3292 | .con_switch = fbcon_switch, | |
3293 | .con_blank = fbcon_blank, | |
3294 | .con_font_set = fbcon_set_font, | |
3295 | .con_font_get = fbcon_get_font, | |
3296 | .con_font_default = fbcon_set_def_font, | |
3297 | .con_font_copy = fbcon_copy_font, | |
3298 | .con_set_palette = fbcon_set_palette, | |
3299 | .con_scrolldelta = fbcon_scrolldelta, | |
3300 | .con_set_origin = fbcon_set_origin, | |
3301 | .con_invert_region = fbcon_invert_region, | |
3302 | .con_screen_pos = fbcon_screen_pos, | |
3303 | .con_getxy = fbcon_getxy, | |
3304 | .con_resize = fbcon_resize, | |
d219adc1 JB |
3305 | .con_debug_enter = fbcon_debug_enter, |
3306 | .con_debug_leave = fbcon_debug_leave, | |
1da177e4 LT |
3307 | }; |
3308 | ||
3309 | static struct notifier_block fbcon_event_notifier = { | |
3310 | .notifier_call = fbcon_event_notify, | |
3311 | }; | |
3312 | ||
0c6c1ce0 AD |
3313 | static ssize_t store_rotate(struct device *device, |
3314 | struct device_attribute *attr, const char *buf, | |
3315 | size_t count) | |
9a179176 AD |
3316 | { |
3317 | struct fb_info *info; | |
3318 | int rotate, idx; | |
3319 | char **last = NULL; | |
3320 | ||
e614b18d AD |
3321 | if (fbcon_has_exited) |
3322 | return count; | |
3323 | ||
ac751efa | 3324 | console_lock(); |
9a179176 AD |
3325 | idx = con2fb_map[fg_console]; |
3326 | ||
3327 | if (idx == -1 || registered_fb[idx] == NULL) | |
3328 | goto err; | |
3329 | ||
3330 | info = registered_fb[idx]; | |
3331 | rotate = simple_strtoul(buf, last, 0); | |
3332 | fbcon_rotate(info, rotate); | |
3333 | err: | |
ac751efa | 3334 | console_unlock(); |
9a179176 AD |
3335 | return count; |
3336 | } | |
3337 | ||
0c6c1ce0 AD |
3338 | static ssize_t store_rotate_all(struct device *device, |
3339 | struct device_attribute *attr,const char *buf, | |
3340 | size_t count) | |
9a179176 AD |
3341 | { |
3342 | struct fb_info *info; | |
3343 | int rotate, idx; | |
3344 | char **last = NULL; | |
3345 | ||
e614b18d AD |
3346 | if (fbcon_has_exited) |
3347 | return count; | |
3348 | ||
ac751efa | 3349 | console_lock(); |
9a179176 AD |
3350 | idx = con2fb_map[fg_console]; |
3351 | ||
3352 | if (idx == -1 || registered_fb[idx] == NULL) | |
3353 | goto err; | |
3354 | ||
3355 | info = registered_fb[idx]; | |
3356 | rotate = simple_strtoul(buf, last, 0); | |
3357 | fbcon_rotate_all(info, rotate); | |
3358 | err: | |
ac751efa | 3359 | console_unlock(); |
9a179176 AD |
3360 | return count; |
3361 | } | |
3362 | ||
0c6c1ce0 AD |
3363 | static ssize_t show_rotate(struct device *device, |
3364 | struct device_attribute *attr,char *buf) | |
9a179176 AD |
3365 | { |
3366 | struct fb_info *info; | |
3367 | int rotate = 0, idx; | |
3368 | ||
e614b18d AD |
3369 | if (fbcon_has_exited) |
3370 | return 0; | |
3371 | ||
ac751efa | 3372 | console_lock(); |
9a179176 AD |
3373 | idx = con2fb_map[fg_console]; |
3374 | ||
3375 | if (idx == -1 || registered_fb[idx] == NULL) | |
3376 | goto err; | |
3377 | ||
3378 | info = registered_fb[idx]; | |
3379 | rotate = fbcon_get_rotate(info); | |
3380 | err: | |
ac751efa | 3381 | console_unlock(); |
9a179176 AD |
3382 | return snprintf(buf, PAGE_SIZE, "%d\n", rotate); |
3383 | } | |
3384 | ||
0c6c1ce0 AD |
3385 | static ssize_t show_cursor_blink(struct device *device, |
3386 | struct device_attribute *attr, char *buf) | |
acba9cd0 AD |
3387 | { |
3388 | struct fb_info *info; | |
3389 | struct fbcon_ops *ops; | |
3390 | int idx, blink = -1; | |
3391 | ||
3392 | if (fbcon_has_exited) | |
3393 | return 0; | |
3394 | ||
ac751efa | 3395 | console_lock(); |
acba9cd0 AD |
3396 | idx = con2fb_map[fg_console]; |
3397 | ||
3398 | if (idx == -1 || registered_fb[idx] == NULL) | |
3399 | goto err; | |
3400 | ||
3401 | info = registered_fb[idx]; | |
3402 | ops = info->fbcon_par; | |
3403 | ||
3404 | if (!ops) | |
3405 | goto err; | |
3406 | ||
3407 | blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0; | |
3408 | err: | |
ac751efa | 3409 | console_unlock(); |
acba9cd0 AD |
3410 | return snprintf(buf, PAGE_SIZE, "%d\n", blink); |
3411 | } | |
3412 | ||
0c6c1ce0 AD |
3413 | static ssize_t store_cursor_blink(struct device *device, |
3414 | struct device_attribute *attr, | |
acba9cd0 AD |
3415 | const char *buf, size_t count) |
3416 | { | |
3417 | struct fb_info *info; | |
3418 | int blink, idx; | |
3419 | char **last = NULL; | |
3420 | ||
3421 | if (fbcon_has_exited) | |
3422 | return count; | |
3423 | ||
ac751efa | 3424 | console_lock(); |
acba9cd0 AD |
3425 | idx = con2fb_map[fg_console]; |
3426 | ||
3427 | if (idx == -1 || registered_fb[idx] == NULL) | |
3428 | goto err; | |
3429 | ||
3430 | info = registered_fb[idx]; | |
3431 | ||
3432 | if (!info->fbcon_par) | |
3433 | goto err; | |
3434 | ||
3435 | blink = simple_strtoul(buf, last, 0); | |
3436 | ||
3437 | if (blink) { | |
3438 | fbcon_cursor_noblink = 0; | |
3439 | fbcon_add_cursor_timer(info); | |
3440 | } else { | |
3441 | fbcon_cursor_noblink = 1; | |
3442 | fbcon_del_cursor_timer(info); | |
3443 | } | |
3444 | ||
3445 | err: | |
ac751efa | 3446 | console_unlock(); |
acba9cd0 AD |
3447 | return count; |
3448 | } | |
3449 | ||
0c6c1ce0 | 3450 | static struct device_attribute device_attrs[] = { |
9a179176 AD |
3451 | __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), |
3452 | __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all), | |
acba9cd0 AD |
3453 | __ATTR(cursor_blink, S_IRUGO|S_IWUSR, show_cursor_blink, |
3454 | store_cursor_blink), | |
9a179176 AD |
3455 | }; |
3456 | ||
0c6c1ce0 | 3457 | static int fbcon_init_device(void) |
9a179176 | 3458 | { |
0a727dea AD |
3459 | int i, error = 0; |
3460 | ||
3461 | fbcon_has_sysfs = 1; | |
3462 | ||
0c6c1ce0 AD |
3463 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) { |
3464 | error = device_create_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3465 | |
3466 | if (error) | |
3467 | break; | |
3468 | } | |
3469 | ||
3470 | if (error) { | |
3471 | while (--i >= 0) | |
0c6c1ce0 | 3472 | device_remove_file(fbcon_device, &device_attrs[i]); |
0a727dea AD |
3473 | |
3474 | fbcon_has_sysfs = 0; | |
3475 | } | |
9a179176 | 3476 | |
9a179176 AD |
3477 | return 0; |
3478 | } | |
3479 | ||
5428b044 | 3480 | static void fbcon_start(void) |
1da177e4 | 3481 | { |
5428b044 AD |
3482 | if (num_registered_fb) { |
3483 | int i; | |
9a179176 | 3484 | |
ac751efa | 3485 | console_lock(); |
1da177e4 | 3486 | |
1da177e4 LT |
3487 | for (i = 0; i < FB_MAX; i++) { |
3488 | if (registered_fb[i] != NULL) { | |
3489 | info_idx = i; | |
3490 | break; | |
3491 | } | |
3492 | } | |
5428b044 | 3493 | |
ac751efa | 3494 | console_unlock(); |
1da177e4 LT |
3495 | fbcon_takeover(0); |
3496 | } | |
9a179176 AD |
3497 | } |
3498 | ||
5428b044 | 3499 | static void fbcon_exit(void) |
9a179176 | 3500 | { |
e55186fe AD |
3501 | struct fb_info *info; |
3502 | int i, j, mapped; | |
3503 | ||
e614b18d AD |
3504 | if (fbcon_has_exited) |
3505 | return; | |
3506 | ||
e55186fe | 3507 | kfree((void *)softback_buf); |
5428b044 | 3508 | softback_buf = 0UL; |
e55186fe AD |
3509 | |
3510 | for (i = 0; i < FB_MAX; i++) { | |
142092e5 | 3511 | int pending = 0; |
beaa4867 | 3512 | |
e55186fe AD |
3513 | mapped = 0; |
3514 | info = registered_fb[i]; | |
3515 | ||
3516 | if (info == NULL) | |
3517 | continue; | |
3518 | ||
142092e5 JP |
3519 | if (info->queue.func) |
3520 | pending = cancel_work_sync(&info->queue); | |
beaa4867 GL |
3521 | DPRINTK("fbcon: %s pending work\n", (pending ? "canceled" : |
3522 | "no")); | |
3523 | ||
e614b18d AD |
3524 | for (j = first_fb_vc; j <= last_fb_vc; j++) { |
3525 | if (con2fb_map[j] == i) | |
e55186fe | 3526 | mapped = 1; |
e55186fe AD |
3527 | } |
3528 | ||
3529 | if (mapped) { | |
3530 | if (info->fbops->fb_release) | |
3531 | info->fbops->fb_release(info, 0); | |
3532 | module_put(info->fbops->owner); | |
5428b044 AD |
3533 | |
3534 | if (info->fbcon_par) { | |
e299dd4d DJ |
3535 | struct fbcon_ops *ops = info->fbcon_par; |
3536 | ||
5428b044 | 3537 | fbcon_del_cursor_timer(info); |
e299dd4d | 3538 | kfree(ops->cursor_src); |
5428b044 AD |
3539 | kfree(info->fbcon_par); |
3540 | info->fbcon_par = NULL; | |
3541 | } | |
3542 | ||
3543 | if (info->queue.func == fb_flashcursor) | |
3544 | info->queue.func = NULL; | |
e55186fe AD |
3545 | } |
3546 | } | |
3547 | ||
e614b18d | 3548 | fbcon_has_exited = 1; |
5428b044 AD |
3549 | } |
3550 | ||
3551 | static int __init fb_console_init(void) | |
3552 | { | |
3553 | int i; | |
3554 | ||
ac751efa | 3555 | console_lock(); |
5428b044 | 3556 | fb_register_client(&fbcon_event_notifier); |
77997aaa GKH |
3557 | fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), NULL, |
3558 | "fbcon"); | |
5428b044 | 3559 | |
0c6c1ce0 AD |
3560 | if (IS_ERR(fbcon_device)) { |
3561 | printk(KERN_WARNING "Unable to create device " | |
5428b044 | 3562 | "for fbcon; errno = %ld\n", |
0c6c1ce0 AD |
3563 | PTR_ERR(fbcon_device)); |
3564 | fbcon_device = NULL; | |
5428b044 | 3565 | } else |
0c6c1ce0 | 3566 | fbcon_init_device(); |
5428b044 AD |
3567 | |
3568 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
3569 | con2fb_map[i] = -1; | |
3570 | ||
ac751efa | 3571 | console_unlock(); |
5428b044 AD |
3572 | fbcon_start(); |
3573 | return 0; | |
3574 | } | |
3575 | ||
3576 | module_init(fb_console_init); | |
3577 | ||
3578 | #ifdef MODULE | |
3579 | ||
0c6c1ce0 | 3580 | static void __exit fbcon_deinit_device(void) |
5428b044 AD |
3581 | { |
3582 | int i; | |
3583 | ||
0a727dea | 3584 | if (fbcon_has_sysfs) { |
0c6c1ce0 AD |
3585 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) |
3586 | device_remove_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3587 | |
3588 | fbcon_has_sysfs = 0; | |
3589 | } | |
9a179176 AD |
3590 | } |
3591 | ||
1da177e4 LT |
3592 | static void __exit fb_console_exit(void) |
3593 | { | |
ac751efa | 3594 | console_lock(); |
1da177e4 | 3595 | fb_unregister_client(&fbcon_event_notifier); |
0c6c1ce0 AD |
3596 | fbcon_deinit_device(); |
3597 | device_destroy(fb_class, MKDEV(0, 0)); | |
e614b18d | 3598 | fbcon_exit(); |
ac751efa | 3599 | console_unlock(); |
e614b18d | 3600 | unregister_con_driver(&fb_con); |
1da177e4 LT |
3601 | } |
3602 | ||
3603 | module_exit(fb_console_exit); | |
3604 | ||
3605 | #endif | |
3606 | ||
3607 | MODULE_LICENSE("GPL"); |