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Commit | Line | Data |
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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; |
4769a9a5 AD |
117 | |
118 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY | |
623e71b0 | 119 | static int map_override; |
e614b18d | 120 | |
4769a9a5 AD |
121 | static inline void fbcon_map_override(void) |
122 | { | |
123 | map_override = 1; | |
124 | } | |
125 | #else | |
126 | static inline void fbcon_map_override(void) | |
127 | { | |
128 | } | |
129 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY */ | |
130 | ||
1da177e4 LT |
131 | /* font data */ |
132 | static char fontname[40]; | |
133 | ||
134 | /* current fb_info */ | |
135 | static int info_idx = -1; | |
136 | ||
e4fc2761 | 137 | /* console rotation */ |
2428e59b | 138 | static int initial_rotation; |
0a727dea | 139 | static int fbcon_has_sysfs; |
e4fc2761 | 140 | |
1da177e4 LT |
141 | static const struct consw fb_con; |
142 | ||
143 | #define CM_SOFTBACK (8) | |
144 | ||
145 | #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) | |
146 | ||
1da177e4 LT |
147 | static int fbcon_set_origin(struct vc_data *); |
148 | ||
149 | #define CURSOR_DRAW_DELAY (1) | |
150 | ||
1da177e4 | 151 | static int vbl_cursor_cnt; |
acba9cd0 | 152 | static int fbcon_cursor_noblink; |
1da177e4 LT |
153 | |
154 | #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) | |
155 | ||
156 | /* | |
157 | * Interface used by the world | |
158 | */ | |
159 | ||
160 | static const char *fbcon_startup(void); | |
161 | static void fbcon_init(struct vc_data *vc, int init); | |
162 | static void fbcon_deinit(struct vc_data *vc); | |
163 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, | |
164 | int width); | |
165 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos); | |
166 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
167 | int count, int ypos, int xpos); | |
168 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only); | |
169 | static void fbcon_cursor(struct vc_data *vc, int mode); | |
170 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
171 | int count); | |
172 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
173 | int height, int width); | |
174 | static int fbcon_switch(struct vc_data *vc); | |
175 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); | |
176 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table); | |
177 | static int fbcon_scrolldelta(struct vc_data *vc, int lines); | |
178 | ||
179 | /* | |
180 | * Internal routines | |
181 | */ | |
1da177e4 LT |
182 | static __inline__ void ywrap_up(struct vc_data *vc, int count); |
183 | static __inline__ void ywrap_down(struct vc_data *vc, int count); | |
184 | static __inline__ void ypan_up(struct vc_data *vc, int count); | |
185 | static __inline__ void ypan_down(struct vc_data *vc, int count); | |
186 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
187 | int dy, int dx, int height, int width, u_int y_break); | |
188 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
d1baa4ff | 189 | int unit); |
1da177e4 LT |
190 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, |
191 | int line, int count, int dy); | |
a812c94b AD |
192 | static void fbcon_modechanged(struct fb_info *info); |
193 | static void fbcon_set_all_vcs(struct fb_info *info); | |
5428b044 AD |
194 | static void fbcon_start(void); |
195 | static void fbcon_exit(void); | |
0c6c1ce0 | 196 | static struct device *fbcon_device; |
9a179176 | 197 | |
dbcbfe1e | 198 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION |
b73deed3 | 199 | static inline void fbcon_set_rotation(struct fb_info *info) |
dbcbfe1e AD |
200 | { |
201 | struct fbcon_ops *ops = info->fbcon_par; | |
202 | ||
203 | if (!(info->flags & FBINFO_MISC_TILEBLITTING) && | |
b73deed3 AD |
204 | ops->p->con_rotate < 4) |
205 | ops->rotate = ops->p->con_rotate; | |
dbcbfe1e AD |
206 | else |
207 | ops->rotate = 0; | |
208 | } | |
a812c94b AD |
209 | |
210 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
211 | { | |
212 | struct fbcon_ops *ops= info->fbcon_par; | |
213 | struct fb_info *fb_info; | |
214 | ||
215 | if (!ops || ops->currcon == -1) | |
216 | return; | |
217 | ||
218 | fb_info = registered_fb[con2fb_map[ops->currcon]]; | |
219 | ||
220 | if (info == fb_info) { | |
221 | struct display *p = &fb_display[ops->currcon]; | |
222 | ||
223 | if (rotate < 4) | |
224 | p->con_rotate = rotate; | |
225 | else | |
226 | p->con_rotate = 0; | |
227 | ||
228 | fbcon_modechanged(info); | |
229 | } | |
230 | } | |
231 | ||
232 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
233 | { | |
234 | struct fbcon_ops *ops = info->fbcon_par; | |
235 | struct vc_data *vc; | |
236 | struct display *p; | |
237 | int i; | |
238 | ||
239 | if (!ops || ops->currcon < 0 || rotate > 3) | |
240 | return; | |
241 | ||
e614b18d | 242 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
a812c94b AD |
243 | vc = vc_cons[i].d; |
244 | if (!vc || vc->vc_mode != KD_TEXT || | |
245 | registered_fb[con2fb_map[i]] != info) | |
246 | continue; | |
247 | ||
248 | p = &fb_display[vc->vc_num]; | |
249 | p->con_rotate = rotate; | |
250 | } | |
251 | ||
252 | fbcon_set_all_vcs(info); | |
253 | } | |
dbcbfe1e | 254 | #else |
b73deed3 | 255 | static inline void fbcon_set_rotation(struct fb_info *info) |
e4fc2761 AD |
256 | { |
257 | struct fbcon_ops *ops = info->fbcon_par; | |
258 | ||
259 | ops->rotate = FB_ROTATE_UR; | |
260 | } | |
a812c94b AD |
261 | |
262 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
263 | { | |
264 | return; | |
265 | } | |
266 | ||
267 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
268 | { | |
269 | return; | |
270 | } | |
dbcbfe1e | 271 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ |
e4fc2761 | 272 | |
a812c94b AD |
273 | static int fbcon_get_rotate(struct fb_info *info) |
274 | { | |
275 | struct fbcon_ops *ops = info->fbcon_par; | |
276 | ||
277 | return (ops) ? ops->rotate : 0; | |
278 | } | |
279 | ||
1da177e4 LT |
280 | static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) |
281 | { | |
282 | struct fbcon_ops *ops = info->fbcon_par; | |
283 | ||
284 | return (info->state != FBINFO_STATE_RUNNING || | |
285 | vc->vc_mode != KD_TEXT || ops->graphics); | |
286 | } | |
287 | ||
288 | static inline int get_color(struct vc_data *vc, struct fb_info *info, | |
289 | u16 c, int is_fg) | |
290 | { | |
b8c90945 | 291 | int depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
292 | int color = 0; |
293 | ||
294 | if (console_blanked) { | |
295 | unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; | |
296 | ||
297 | c = vc->vc_video_erase_char & charmask; | |
298 | } | |
299 | ||
300 | if (depth != 1) | |
301 | color = (is_fg) ? attr_fgcol((vc->vc_hi_font_mask) ? 9 : 8, c) | |
302 | : attr_bgcol((vc->vc_hi_font_mask) ? 13 : 12, c); | |
303 | ||
304 | switch (depth) { | |
305 | case 1: | |
306 | { | |
91c43132 | 307 | int col = mono_col(info); |
1da177e4 | 308 | /* 0 or 1 */ |
b8c90945 AD |
309 | int fg = (info->fix.visual != FB_VISUAL_MONO01) ? col : 0; |
310 | int bg = (info->fix.visual != FB_VISUAL_MONO01) ? 0 : col; | |
1da177e4 LT |
311 | |
312 | if (console_blanked) | |
313 | fg = bg; | |
314 | ||
315 | color = (is_fg) ? fg : bg; | |
316 | break; | |
317 | } | |
318 | case 2: | |
319 | /* | |
320 | * Scale down 16-colors to 4 colors. Default 4-color palette | |
2cc38ed1 AD |
321 | * is grayscale. However, simply dividing the values by 4 |
322 | * will not work, as colors 1, 2 and 3 will be scaled-down | |
323 | * to zero rendering them invisible. So empirically convert | |
324 | * colors to a sane 4-level grayscale. | |
1da177e4 | 325 | */ |
2cc38ed1 AD |
326 | switch (color) { |
327 | case 0: | |
328 | color = 0; /* black */ | |
329 | break; | |
330 | case 1 ... 6: | |
331 | color = 2; /* white */ | |
332 | break; | |
333 | case 7 ... 8: | |
334 | color = 1; /* gray */ | |
335 | break; | |
336 | default: | |
337 | color = 3; /* intense white */ | |
338 | break; | |
339 | } | |
340 | break; | |
1da177e4 LT |
341 | case 3: |
342 | /* | |
343 | * Last 8 entries of default 16-color palette is a more intense | |
344 | * version of the first 8 (i.e., same chrominance, different | |
345 | * luminance). | |
346 | */ | |
347 | color &= 7; | |
348 | break; | |
349 | } | |
350 | ||
351 | ||
352 | return color; | |
353 | } | |
354 | ||
4d9c5b6e AD |
355 | static void fbcon_update_softback(struct vc_data *vc) |
356 | { | |
357 | int l = fbcon_softback_size / vc->vc_size_row; | |
358 | ||
359 | if (l > 5) | |
360 | softback_end = softback_buf + l * vc->vc_size_row; | |
361 | else | |
362 | /* Smaller scrollback makes no sense, and 0 would screw | |
363 | the operation totally */ | |
364 | softback_top = 0; | |
365 | } | |
366 | ||
c4028958 | 367 | static void fb_flashcursor(struct work_struct *work) |
1da177e4 | 368 | { |
c4028958 | 369 | struct fb_info *info = container_of(work, struct fb_info, queue); |
1da177e4 LT |
370 | struct fbcon_ops *ops = info->fbcon_par; |
371 | struct display *p; | |
372 | struct vc_data *vc = NULL; | |
373 | int c; | |
374 | int mode; | |
375 | ||
5428b044 AD |
376 | acquire_console_sem(); |
377 | if (ops && ops->currcon != -1) | |
1da177e4 LT |
378 | vc = vc_cons[ops->currcon].d; |
379 | ||
380 | if (!vc || !CON_IS_VISIBLE(vc) || | |
dbd4f128 | 381 | registered_fb[con2fb_map[vc->vc_num]] != info || |
212f2639 | 382 | vc->vc_deccm != 1) { |
5428b044 | 383 | release_console_sem(); |
1da177e4 | 384 | return; |
5428b044 AD |
385 | } |
386 | ||
1da177e4 LT |
387 | p = &fb_display[vc->vc_num]; |
388 | c = scr_readw((u16 *) vc->vc_pos); | |
389 | mode = (!ops->cursor_flash || ops->cursor_state.enable) ? | |
390 | CM_ERASE : CM_DRAW; | |
b73deed3 | 391 | ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1), |
1da177e4 LT |
392 | get_color(vc, info, c, 0)); |
393 | release_console_sem(); | |
394 | } | |
395 | ||
1da177e4 LT |
396 | static void cursor_timer_handler(unsigned long dev_addr) |
397 | { | |
398 | struct fb_info *info = (struct fb_info *) dev_addr; | |
399 | struct fbcon_ops *ops = info->fbcon_par; | |
400 | ||
401 | schedule_work(&info->queue); | |
402 | mod_timer(&ops->cursor_timer, jiffies + HZ/5); | |
403 | } | |
404 | ||
88fb2c6e AD |
405 | static void fbcon_add_cursor_timer(struct fb_info *info) |
406 | { | |
407 | struct fbcon_ops *ops = info->fbcon_par; | |
408 | ||
409 | if ((!info->queue.func || info->queue.func == fb_flashcursor) && | |
acba9cd0 AD |
410 | !(ops->flags & FBCON_FLAGS_CURSOR_TIMER) && |
411 | !fbcon_cursor_noblink) { | |
88fb2c6e | 412 | if (!info->queue.func) |
c4028958 | 413 | INIT_WORK(&info->queue, fb_flashcursor); |
88fb2c6e AD |
414 | |
415 | init_timer(&ops->cursor_timer); | |
416 | ops->cursor_timer.function = cursor_timer_handler; | |
417 | ops->cursor_timer.expires = jiffies + HZ / 5; | |
418 | ops->cursor_timer.data = (unsigned long ) info; | |
419 | add_timer(&ops->cursor_timer); | |
420 | ops->flags |= FBCON_FLAGS_CURSOR_TIMER; | |
421 | } | |
422 | } | |
423 | ||
424 | static void fbcon_del_cursor_timer(struct fb_info *info) | |
425 | { | |
426 | struct fbcon_ops *ops = info->fbcon_par; | |
427 | ||
428 | if (info->queue.func == fb_flashcursor && | |
429 | ops->flags & FBCON_FLAGS_CURSOR_TIMER) { | |
430 | del_timer_sync(&ops->cursor_timer); | |
431 | ops->flags &= ~FBCON_FLAGS_CURSOR_TIMER; | |
432 | } | |
433 | } | |
434 | ||
1da177e4 LT |
435 | #ifndef MODULE |
436 | static int __init fb_console_setup(char *this_opt) | |
437 | { | |
438 | char *options; | |
439 | int i, j; | |
440 | ||
441 | if (!this_opt || !*this_opt) | |
9b41046c | 442 | return 1; |
1da177e4 LT |
443 | |
444 | while ((options = strsep(&this_opt, ",")) != NULL) { | |
445 | if (!strncmp(options, "font:", 5)) | |
446 | strcpy(fontname, options + 5); | |
447 | ||
448 | if (!strncmp(options, "scrollback:", 11)) { | |
449 | options += 11; | |
450 | if (*options) { | |
451 | fbcon_softback_size = simple_strtoul(options, &options, 0); | |
452 | if (*options == 'k' || *options == 'K') { | |
453 | fbcon_softback_size *= 1024; | |
454 | options++; | |
455 | } | |
456 | if (*options != ',') | |
9b41046c | 457 | return 1; |
1da177e4 LT |
458 | options++; |
459 | } else | |
9b41046c | 460 | return 1; |
1da177e4 LT |
461 | } |
462 | ||
463 | if (!strncmp(options, "map:", 4)) { | |
464 | options += 4; | |
623e71b0 | 465 | if (*options) { |
1da177e4 LT |
466 | for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { |
467 | if (!options[j]) | |
468 | j = 0; | |
469 | con2fb_map_boot[i] = | |
470 | (options[j++]-'0') % FB_MAX; | |
471 | } | |
623e71b0 | 472 | |
4769a9a5 | 473 | fbcon_map_override(); |
623e71b0 AD |
474 | } |
475 | ||
9b41046c | 476 | return 1; |
1da177e4 LT |
477 | } |
478 | ||
479 | if (!strncmp(options, "vc:", 3)) { | |
480 | options += 3; | |
481 | if (*options) | |
482 | first_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
483 | if (first_fb_vc < 0) | |
484 | first_fb_vc = 0; | |
485 | if (*options++ == '-') | |
486 | last_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
487 | fbcon_is_default = 0; | |
488 | } | |
e4fc2761 AD |
489 | |
490 | if (!strncmp(options, "rotate:", 7)) { | |
491 | options += 7; | |
492 | if (*options) | |
2428e59b MS |
493 | initial_rotation = simple_strtoul(options, &options, 0); |
494 | if (initial_rotation > 3) | |
495 | initial_rotation = 0; | |
e4fc2761 | 496 | } |
1da177e4 | 497 | } |
9b41046c | 498 | return 1; |
1da177e4 LT |
499 | } |
500 | ||
501 | __setup("fbcon=", fb_console_setup); | |
502 | #endif | |
503 | ||
504 | static int search_fb_in_map(int idx) | |
505 | { | |
506 | int i, retval = 0; | |
507 | ||
e614b18d | 508 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
509 | if (con2fb_map[i] == idx) |
510 | retval = 1; | |
511 | } | |
512 | return retval; | |
513 | } | |
514 | ||
515 | static int search_for_mapped_con(void) | |
516 | { | |
517 | int i, retval = 0; | |
518 | ||
e614b18d | 519 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
520 | if (con2fb_map[i] != -1) |
521 | retval = 1; | |
522 | } | |
523 | return retval; | |
524 | } | |
525 | ||
526 | static int fbcon_takeover(int show_logo) | |
527 | { | |
528 | int err, i; | |
529 | ||
530 | if (!num_registered_fb) | |
531 | return -ENODEV; | |
532 | ||
533 | if (!show_logo) | |
534 | logo_shown = FBCON_LOGO_DONTSHOW; | |
535 | ||
536 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
537 | con2fb_map[i] = info_idx; | |
538 | ||
539 | err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, | |
540 | fbcon_is_default); | |
e614b18d | 541 | |
1da177e4 LT |
542 | if (err) { |
543 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
544 | con2fb_map[i] = -1; | |
545 | } | |
546 | info_idx = -1; | |
547 | } | |
548 | ||
549 | return err; | |
550 | } | |
551 | ||
70802c60 AD |
552 | #ifdef MODULE |
553 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, | |
554 | int cols, int rows, int new_cols, int new_rows) | |
555 | { | |
556 | logo_shown = FBCON_LOGO_DONTSHOW; | |
557 | } | |
558 | #else | |
1da177e4 LT |
559 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, |
560 | int cols, int rows, int new_cols, int new_rows) | |
561 | { | |
562 | /* Need to make room for the logo */ | |
9c44e5f6 | 563 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
564 | int cnt, erase = vc->vc_video_erase_char, step; |
565 | unsigned short *save = NULL, *r, *q; | |
49a1d28f | 566 | int logo_height; |
1da177e4 | 567 | |
70802c60 AD |
568 | if (info->flags & FBINFO_MODULE) { |
569 | logo_shown = FBCON_LOGO_DONTSHOW; | |
570 | return; | |
571 | } | |
572 | ||
1da177e4 LT |
573 | /* |
574 | * remove underline attribute from erase character | |
575 | * if black and white framebuffer. | |
576 | */ | |
b8c90945 | 577 | if (fb_get_color_depth(&info->var, &info->fix) == 1) |
1da177e4 | 578 | erase &= ~0x400; |
9c44e5f6 | 579 | logo_height = fb_prepare_logo(info, ops->rotate); |
416e74ea | 580 | logo_lines = DIV_ROUND_UP(logo_height, vc->vc_font.height); |
1da177e4 LT |
581 | q = (unsigned short *) (vc->vc_origin + |
582 | vc->vc_size_row * rows); | |
583 | step = logo_lines * cols; | |
584 | for (r = q - logo_lines * cols; r < q; r++) | |
585 | if (scr_readw(r) != vc->vc_video_erase_char) | |
586 | break; | |
587 | if (r != q && new_rows >= rows + logo_lines) { | |
588 | save = kmalloc(logo_lines * new_cols * 2, GFP_KERNEL); | |
589 | if (save) { | |
590 | int i = cols < new_cols ? cols : new_cols; | |
591 | scr_memsetw(save, erase, logo_lines * new_cols * 2); | |
592 | r = q - step; | |
593 | for (cnt = 0; cnt < logo_lines; cnt++, r += i) | |
594 | scr_memcpyw(save + cnt * new_cols, r, 2 * i); | |
595 | r = q; | |
596 | } | |
597 | } | |
598 | if (r == q) { | |
599 | /* We can scroll screen down */ | |
600 | r = q - step - cols; | |
601 | for (cnt = rows - logo_lines; cnt > 0; cnt--) { | |
602 | scr_memcpyw(r + step, r, vc->vc_size_row); | |
603 | r -= cols; | |
604 | } | |
605 | if (!save) { | |
250038f5 GU |
606 | int lines; |
607 | if (vc->vc_y + logo_lines >= rows) | |
608 | lines = rows - vc->vc_y - 1; | |
609 | else | |
610 | lines = logo_lines; | |
611 | vc->vc_y += lines; | |
612 | vc->vc_pos += lines * vc->vc_size_row; | |
1da177e4 LT |
613 | } |
614 | } | |
615 | scr_memsetw((unsigned short *) vc->vc_origin, | |
616 | erase, | |
617 | vc->vc_size_row * logo_lines); | |
618 | ||
619 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { | |
620 | fbcon_clear_margins(vc, 0); | |
621 | update_screen(vc); | |
622 | } | |
623 | ||
624 | if (save) { | |
625 | q = (unsigned short *) (vc->vc_origin + | |
626 | vc->vc_size_row * | |
627 | rows); | |
628 | scr_memcpyw(q, save, logo_lines * new_cols * 2); | |
629 | vc->vc_y += logo_lines; | |
630 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
631 | kfree(save); | |
632 | } | |
633 | ||
634 | if (logo_lines > vc->vc_bottom) { | |
635 | logo_shown = FBCON_LOGO_CANSHOW; | |
636 | printk(KERN_INFO | |
637 | "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); | |
638 | } else if (logo_shown != FBCON_LOGO_DONTSHOW) { | |
639 | logo_shown = FBCON_LOGO_DRAW; | |
640 | vc->vc_top = logo_lines; | |
641 | } | |
642 | } | |
70802c60 | 643 | #endif /* MODULE */ |
1da177e4 LT |
644 | |
645 | #ifdef CONFIG_FB_TILEBLITTING | |
b73deed3 | 646 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
647 | { |
648 | struct fbcon_ops *ops = info->fbcon_par; | |
649 | ||
b73deed3 | 650 | ops->p = &fb_display[vc->vc_num]; |
ab767201 | 651 | |
1da177e4 | 652 | if ((info->flags & FBINFO_MISC_TILEBLITTING)) |
b73deed3 | 653 | fbcon_set_tileops(vc, info); |
e4fc2761 | 654 | else { |
b73deed3 | 655 | fbcon_set_rotation(info); |
1da177e4 | 656 | fbcon_set_bitops(ops); |
e4fc2761 | 657 | } |
1da177e4 | 658 | } |
38b4982c AD |
659 | |
660 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
661 | { | |
662 | int err = 0; | |
663 | ||
664 | if (info->flags & FBINFO_MISC_TILEBLITTING && | |
665 | info->tileops->fb_get_tilemax(info) < charcount) | |
666 | err = 1; | |
667 | ||
668 | return err; | |
669 | } | |
1da177e4 | 670 | #else |
b73deed3 | 671 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
672 | { |
673 | struct fbcon_ops *ops = info->fbcon_par; | |
674 | ||
675 | info->flags &= ~FBINFO_MISC_TILEBLITTING; | |
b73deed3 AD |
676 | ops->p = &fb_display[vc->vc_num]; |
677 | fbcon_set_rotation(info); | |
1da177e4 LT |
678 | fbcon_set_bitops(ops); |
679 | } | |
38b4982c AD |
680 | |
681 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
682 | { | |
683 | return 0; | |
684 | } | |
685 | ||
1da177e4 LT |
686 | #endif /* CONFIG_MISC_TILEBLITTING */ |
687 | ||
688 | ||
689 | static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, | |
690 | int unit, int oldidx) | |
691 | { | |
692 | struct fbcon_ops *ops = NULL; | |
693 | int err = 0; | |
694 | ||
695 | if (!try_module_get(info->fbops->owner)) | |
696 | err = -ENODEV; | |
697 | ||
698 | if (!err && info->fbops->fb_open && | |
699 | info->fbops->fb_open(info, 0)) | |
700 | err = -ENODEV; | |
701 | ||
702 | if (!err) { | |
a39bc34e | 703 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
704 | if (!ops) |
705 | err = -ENOMEM; | |
706 | } | |
707 | ||
708 | if (!err) { | |
1da177e4 | 709 | info->fbcon_par = ops; |
d1baa4ff AD |
710 | |
711 | if (vc) | |
712 | set_blitting_type(vc, info); | |
1da177e4 LT |
713 | } |
714 | ||
715 | if (err) { | |
716 | con2fb_map[unit] = oldidx; | |
717 | module_put(info->fbops->owner); | |
718 | } | |
719 | ||
720 | return err; | |
721 | } | |
722 | ||
723 | static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo, | |
724 | struct fb_info *newinfo, int unit, | |
725 | int oldidx, int found) | |
726 | { | |
727 | struct fbcon_ops *ops = oldinfo->fbcon_par; | |
728 | int err = 0; | |
729 | ||
730 | if (oldinfo->fbops->fb_release && | |
731 | oldinfo->fbops->fb_release(oldinfo, 0)) { | |
732 | con2fb_map[unit] = oldidx; | |
733 | if (!found && newinfo->fbops->fb_release) | |
734 | newinfo->fbops->fb_release(newinfo, 0); | |
735 | if (!found) | |
736 | module_put(newinfo->fbops->owner); | |
737 | err = -ENODEV; | |
738 | } | |
739 | ||
740 | if (!err) { | |
88fb2c6e | 741 | fbcon_del_cursor_timer(oldinfo); |
1da177e4 LT |
742 | kfree(ops->cursor_state.mask); |
743 | kfree(ops->cursor_data); | |
e4fc2761 | 744 | kfree(ops->fontbuffer); |
1da177e4 LT |
745 | kfree(oldinfo->fbcon_par); |
746 | oldinfo->fbcon_par = NULL; | |
747 | module_put(oldinfo->fbops->owner); | |
dd0314f7 AD |
748 | /* |
749 | If oldinfo and newinfo are driving the same hardware, | |
750 | the fb_release() method of oldinfo may attempt to | |
751 | restore the hardware state. This will leave the | |
752 | newinfo in an undefined state. Thus, a call to | |
753 | fb_set_par() may be needed for the newinfo. | |
754 | */ | |
755 | if (newinfo->fbops->fb_set_par) | |
756 | newinfo->fbops->fb_set_par(newinfo); | |
1da177e4 LT |
757 | } |
758 | ||
759 | return err; | |
760 | } | |
761 | ||
1da177e4 LT |
762 | static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, |
763 | int unit, int show_logo) | |
764 | { | |
765 | struct fbcon_ops *ops = info->fbcon_par; | |
766 | ||
767 | ops->currcon = fg_console; | |
768 | ||
769 | if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) | |
770 | info->fbops->fb_set_par(info); | |
771 | ||
772 | ops->flags |= FBCON_FLAGS_INIT; | |
773 | ops->graphics = 0; | |
d1baa4ff | 774 | fbcon_set_disp(info, &info->var, unit); |
1da177e4 LT |
775 | |
776 | if (show_logo) { | |
777 | struct vc_data *fg_vc = vc_cons[fg_console].d; | |
778 | struct fb_info *fg_info = | |
779 | registered_fb[con2fb_map[fg_console]]; | |
780 | ||
781 | fbcon_prepare_logo(fg_vc, fg_info, fg_vc->vc_cols, | |
782 | fg_vc->vc_rows, fg_vc->vc_cols, | |
783 | fg_vc->vc_rows); | |
784 | } | |
785 | ||
786 | update_screen(vc_cons[fg_console].d); | |
787 | } | |
788 | ||
789 | /** | |
790 | * set_con2fb_map - map console to frame buffer device | |
791 | * @unit: virtual console number to map | |
792 | * @newidx: frame buffer index to map virtual console to | |
793 | * @user: user request | |
794 | * | |
795 | * Maps a virtual console @unit to a frame buffer device | |
796 | * @newidx. | |
797 | */ | |
798 | static int set_con2fb_map(int unit, int newidx, int user) | |
799 | { | |
800 | struct vc_data *vc = vc_cons[unit].d; | |
801 | int oldidx = con2fb_map[unit]; | |
802 | struct fb_info *info = registered_fb[newidx]; | |
803 | struct fb_info *oldinfo = NULL; | |
804 | int found, err = 0; | |
805 | ||
806 | if (oldidx == newidx) | |
807 | return 0; | |
808 | ||
e614b18d AD |
809 | if (!info || fbcon_has_exited) |
810 | return -EINVAL; | |
1da177e4 LT |
811 | |
812 | if (!err && !search_for_mapped_con()) { | |
813 | info_idx = newidx; | |
814 | return fbcon_takeover(0); | |
815 | } | |
816 | ||
817 | if (oldidx != -1) | |
818 | oldinfo = registered_fb[oldidx]; | |
819 | ||
820 | found = search_fb_in_map(newidx); | |
821 | ||
822 | acquire_console_sem(); | |
823 | con2fb_map[unit] = newidx; | |
824 | if (!err && !found) | |
825 | err = con2fb_acquire_newinfo(vc, info, unit, oldidx); | |
826 | ||
827 | ||
828 | /* | |
829 | * If old fb is not mapped to any of the consoles, | |
830 | * fbcon should release it. | |
831 | */ | |
832 | if (!err && oldinfo && !search_fb_in_map(oldidx)) | |
833 | err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx, | |
834 | found); | |
835 | ||
836 | if (!err) { | |
837 | int show_logo = (fg_console == 0 && !user && | |
838 | logo_shown != FBCON_LOGO_DONTSHOW); | |
839 | ||
840 | if (!found) | |
88fb2c6e | 841 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
842 | con2fb_map_boot[unit] = newidx; |
843 | con2fb_init_display(vc, info, unit, show_logo); | |
844 | } | |
845 | ||
e614b18d AD |
846 | if (!search_fb_in_map(info_idx)) |
847 | info_idx = newidx; | |
848 | ||
1da177e4 LT |
849 | release_console_sem(); |
850 | return err; | |
851 | } | |
852 | ||
853 | /* | |
854 | * Low Level Operations | |
855 | */ | |
856 | /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ | |
857 | static int var_to_display(struct display *disp, | |
858 | struct fb_var_screeninfo *var, | |
859 | struct fb_info *info) | |
860 | { | |
861 | disp->xres_virtual = var->xres_virtual; | |
862 | disp->yres_virtual = var->yres_virtual; | |
863 | disp->bits_per_pixel = var->bits_per_pixel; | |
864 | disp->grayscale = var->grayscale; | |
865 | disp->nonstd = var->nonstd; | |
866 | disp->accel_flags = var->accel_flags; | |
867 | disp->height = var->height; | |
868 | disp->width = var->width; | |
869 | disp->red = var->red; | |
870 | disp->green = var->green; | |
871 | disp->blue = var->blue; | |
872 | disp->transp = var->transp; | |
873 | disp->rotate = var->rotate; | |
874 | disp->mode = fb_match_mode(var, &info->modelist); | |
875 | if (disp->mode == NULL) | |
876 | /* This should not happen */ | |
877 | return -EINVAL; | |
878 | return 0; | |
879 | } | |
880 | ||
881 | static void display_to_var(struct fb_var_screeninfo *var, | |
882 | struct display *disp) | |
883 | { | |
884 | fb_videomode_to_var(var, disp->mode); | |
885 | var->xres_virtual = disp->xres_virtual; | |
886 | var->yres_virtual = disp->yres_virtual; | |
887 | var->bits_per_pixel = disp->bits_per_pixel; | |
888 | var->grayscale = disp->grayscale; | |
889 | var->nonstd = disp->nonstd; | |
890 | var->accel_flags = disp->accel_flags; | |
891 | var->height = disp->height; | |
892 | var->width = disp->width; | |
893 | var->red = disp->red; | |
894 | var->green = disp->green; | |
895 | var->blue = disp->blue; | |
896 | var->transp = disp->transp; | |
897 | var->rotate = disp->rotate; | |
898 | } | |
899 | ||
900 | static const char *fbcon_startup(void) | |
901 | { | |
902 | const char *display_desc = "frame buffer device"; | |
903 | struct display *p = &fb_display[fg_console]; | |
904 | struct vc_data *vc = vc_cons[fg_console].d; | |
2f4516db | 905 | const struct font_desc *font = NULL; |
1da177e4 LT |
906 | struct module *owner; |
907 | struct fb_info *info = NULL; | |
908 | struct fbcon_ops *ops; | |
909 | int rows, cols; | |
1da177e4 | 910 | |
1da177e4 LT |
911 | /* |
912 | * If num_registered_fb is zero, this is a call for the dummy part. | |
913 | * The frame buffer devices weren't initialized yet. | |
914 | */ | |
915 | if (!num_registered_fb || info_idx == -1) | |
916 | return display_desc; | |
917 | /* | |
918 | * Instead of blindly using registered_fb[0], we use info_idx, set by | |
919 | * fb_console_init(); | |
920 | */ | |
921 | info = registered_fb[info_idx]; | |
922 | if (!info) | |
923 | return NULL; | |
924 | ||
925 | owner = info->fbops->owner; | |
926 | if (!try_module_get(owner)) | |
927 | return NULL; | |
928 | if (info->fbops->fb_open && info->fbops->fb_open(info, 0)) { | |
929 | module_put(owner); | |
930 | return NULL; | |
931 | } | |
932 | ||
a39bc34e | 933 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
934 | if (!ops) { |
935 | module_put(owner); | |
936 | return NULL; | |
937 | } | |
938 | ||
1da177e4 LT |
939 | ops->currcon = -1; |
940 | ops->graphics = 1; | |
e4fc2761 | 941 | ops->cur_rotate = -1; |
1da177e4 | 942 | info->fbcon_par = ops; |
2428e59b | 943 | p->con_rotate = initial_rotation; |
b73deed3 | 944 | set_blitting_type(vc, info); |
1da177e4 LT |
945 | |
946 | if (info->fix.type != FB_TYPE_TEXT) { | |
947 | if (fbcon_softback_size) { | |
948 | if (!softback_buf) { | |
949 | softback_buf = | |
950 | (unsigned long) | |
951 | kmalloc(fbcon_softback_size, | |
952 | GFP_KERNEL); | |
953 | if (!softback_buf) { | |
954 | fbcon_softback_size = 0; | |
955 | softback_top = 0; | |
956 | } | |
957 | } | |
958 | } else { | |
959 | if (softback_buf) { | |
960 | kfree((void *) softback_buf); | |
961 | softback_buf = 0; | |
962 | softback_top = 0; | |
963 | } | |
964 | } | |
965 | if (softback_buf) | |
966 | softback_in = softback_top = softback_curr = | |
967 | softback_buf; | |
968 | softback_lines = 0; | |
969 | } | |
970 | ||
971 | /* Setup default font */ | |
972 | if (!p->fontdata) { | |
973 | if (!fontname[0] || !(font = find_font(fontname))) | |
974 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
975 | info->var.yres, |
976 | info->pixmap.blit_x, | |
977 | info->pixmap.blit_y); | |
1da177e4 LT |
978 | vc->vc_font.width = font->width; |
979 | vc->vc_font.height = font->height; | |
2f4516db | 980 | vc->vc_font.data = (void *)(p->fontdata = font->data); |
1da177e4 LT |
981 | vc->vc_font.charcount = 256; /* FIXME Need to support more fonts */ |
982 | } | |
983 | ||
e4fc2761 AD |
984 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
985 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
986 | cols /= vc->vc_font.width; | |
987 | rows /= vc->vc_font.height; | |
1da177e4 LT |
988 | vc_resize(vc, cols, rows); |
989 | ||
990 | DPRINTK("mode: %s\n", info->fix.id); | |
991 | DPRINTK("visual: %d\n", info->fix.visual); | |
992 | DPRINTK("res: %dx%d-%d\n", info->var.xres, | |
993 | info->var.yres, | |
994 | info->var.bits_per_pixel); | |
995 | ||
88fb2c6e | 996 | fbcon_add_cursor_timer(info); |
e614b18d | 997 | fbcon_has_exited = 0; |
1da177e4 LT |
998 | return display_desc; |
999 | } | |
1000 | ||
1001 | static void fbcon_init(struct vc_data *vc, int init) | |
1002 | { | |
1003 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1004 | struct fbcon_ops *ops; | |
1005 | struct vc_data **default_mode = vc->vc_display_fg; | |
1006 | struct vc_data *svc = *default_mode; | |
1007 | struct display *t, *p = &fb_display[vc->vc_num]; | |
1008 | int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; | |
306958e8 | 1009 | int cap; |
1da177e4 LT |
1010 | |
1011 | if (info_idx == -1 || info == NULL) | |
1012 | return; | |
306958e8 AB |
1013 | |
1014 | cap = info->flags; | |
1015 | ||
1da177e4 LT |
1016 | if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || |
1017 | (info->fix.type == FB_TYPE_TEXT)) | |
1018 | logo = 0; | |
1019 | ||
1da177e4 LT |
1020 | if (var_to_display(p, &info->var, info)) |
1021 | return; | |
1022 | ||
d1baa4ff AD |
1023 | if (!info->fbcon_par) |
1024 | con2fb_acquire_newinfo(vc, info, vc->vc_num, -1); | |
1025 | ||
1da177e4 LT |
1026 | /* If we are not the first console on this |
1027 | fb, copy the font from that console */ | |
e614b18d AD |
1028 | t = &fb_display[fg_console]; |
1029 | if (!p->fontdata) { | |
1030 | if (t->fontdata) { | |
1031 | struct vc_data *fvc = vc_cons[fg_console].d; | |
1032 | ||
1033 | vc->vc_font.data = (void *)(p->fontdata = | |
1034 | fvc->vc_font.data); | |
1035 | vc->vc_font.width = fvc->vc_font.width; | |
1036 | vc->vc_font.height = fvc->vc_font.height; | |
1037 | p->userfont = t->userfont; | |
1038 | ||
1039 | if (p->userfont) | |
1040 | REFCOUNT(p->fontdata)++; | |
1041 | } else { | |
1042 | const struct font_desc *font = NULL; | |
1043 | ||
1044 | if (!fontname[0] || !(font = find_font(fontname))) | |
1045 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1046 | info->var.yres, |
1047 | info->pixmap.blit_x, | |
1048 | info->pixmap.blit_y); | |
e614b18d AD |
1049 | vc->vc_font.width = font->width; |
1050 | vc->vc_font.height = font->height; | |
1051 | vc->vc_font.data = (void *)(p->fontdata = font->data); | |
1052 | vc->vc_font.charcount = 256; /* FIXME Need to | |
1053 | support more fonts */ | |
1054 | } | |
1da177e4 | 1055 | } |
e614b18d | 1056 | |
1da177e4 LT |
1057 | if (p->userfont) |
1058 | charcnt = FNTCHARCNT(p->fontdata); | |
e614b18d | 1059 | |
b8c90945 | 1060 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1061 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1062 | if (charcnt == 256) { | |
1063 | vc->vc_hi_font_mask = 0; | |
1064 | } else { | |
1065 | vc->vc_hi_font_mask = 0x100; | |
1066 | if (vc->vc_can_do_color) | |
1067 | vc->vc_complement_mask <<= 1; | |
1068 | } | |
1069 | ||
1070 | if (!*svc->vc_uni_pagedir_loc) | |
1071 | con_set_default_unimap(svc); | |
1072 | if (!*vc->vc_uni_pagedir_loc) | |
1073 | con_copy_unimap(vc, svc); | |
1074 | ||
e4fc2761 | 1075 | ops = info->fbcon_par; |
2428e59b | 1076 | p->con_rotate = initial_rotation; |
b73deed3 | 1077 | set_blitting_type(vc, info); |
e4fc2761 | 1078 | |
1da177e4 LT |
1079 | cols = vc->vc_cols; |
1080 | rows = vc->vc_rows; | |
e4fc2761 AD |
1081 | new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1082 | new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1083 | new_cols /= vc->vc_font.width; | |
1084 | new_rows /= vc->vc_font.height; | |
1da177e4 LT |
1085 | vc_resize(vc, new_cols, new_rows); |
1086 | ||
1da177e4 LT |
1087 | /* |
1088 | * We must always set the mode. The mode of the previous console | |
1089 | * driver could be in the same resolution but we are using different | |
1090 | * hardware so we have to initialize the hardware. | |
1091 | * | |
1092 | * We need to do it in fbcon_init() to prevent screen corruption. | |
1093 | */ | |
d354d9af | 1094 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { |
1da177e4 LT |
1095 | if (info->fbops->fb_set_par && |
1096 | !(ops->flags & FBCON_FLAGS_INIT)) | |
1097 | info->fbops->fb_set_par(info); | |
1098 | ops->flags |= FBCON_FLAGS_INIT; | |
1099 | } | |
1100 | ||
1101 | ops->graphics = 0; | |
1102 | ||
1103 | if ((cap & FBINFO_HWACCEL_COPYAREA) && | |
1104 | !(cap & FBINFO_HWACCEL_DISABLED)) | |
1105 | p->scrollmode = SCROLL_MOVE; | |
1106 | else /* default to something safe */ | |
1107 | p->scrollmode = SCROLL_REDRAW; | |
1108 | ||
1109 | /* | |
1110 | * ++guenther: console.c:vc_allocate() relies on initializing | |
1111 | * vc_{cols,rows}, but we must not set those if we are only | |
1112 | * resizing the console. | |
1113 | */ | |
1114 | if (!init) { | |
1115 | vc->vc_cols = new_cols; | |
1116 | vc->vc_rows = new_rows; | |
1117 | } | |
1118 | ||
1119 | if (logo) | |
1120 | fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); | |
1121 | ||
4d9c5b6e AD |
1122 | if (vc == svc && softback_buf) |
1123 | fbcon_update_softback(vc); | |
e4fc2761 | 1124 | |
b73deed3 | 1125 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 1126 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 1127 | set_blitting_type(vc, info); |
e4fc2761 AD |
1128 | } |
1129 | ||
1a37d5f5 | 1130 | ops->p = &fb_display[fg_console]; |
1da177e4 LT |
1131 | } |
1132 | ||
e614b18d AD |
1133 | static void fbcon_free_font(struct display *p) |
1134 | { | |
1135 | if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0)) | |
1136 | kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int)); | |
1137 | p->fontdata = NULL; | |
1138 | p->userfont = 0; | |
1139 | } | |
1140 | ||
1da177e4 LT |
1141 | static void fbcon_deinit(struct vc_data *vc) |
1142 | { | |
1143 | struct display *p = &fb_display[vc->vc_num]; | |
e614b18d AD |
1144 | struct fb_info *info; |
1145 | struct fbcon_ops *ops; | |
1146 | int idx; | |
1da177e4 | 1147 | |
1da177e4 | 1148 | fbcon_free_font(p); |
e614b18d AD |
1149 | idx = con2fb_map[vc->vc_num]; |
1150 | ||
1151 | if (idx == -1) | |
1152 | goto finished; | |
1153 | ||
1154 | info = registered_fb[idx]; | |
1155 | ||
1156 | if (!info) | |
1157 | goto finished; | |
1158 | ||
1159 | ops = info->fbcon_par; | |
1160 | ||
1161 | if (!ops) | |
1162 | goto finished; | |
1163 | ||
1164 | if (CON_IS_VISIBLE(vc)) | |
1165 | fbcon_del_cursor_timer(info); | |
1166 | ||
1167 | ops->flags &= ~FBCON_FLAGS_INIT; | |
1168 | finished: | |
1169 | ||
1170 | if (!con_is_bound(&fb_con)) | |
1171 | fbcon_exit(); | |
1172 | ||
1173 | return; | |
1da177e4 LT |
1174 | } |
1175 | ||
1176 | /* ====================================================================== */ | |
1177 | ||
1178 | /* fbcon_XXX routines - interface used by the world | |
1179 | * | |
1180 | * This system is now divided into two levels because of complications | |
1181 | * caused by hardware scrolling. Top level functions: | |
1182 | * | |
1183 | * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins() | |
1184 | * | |
1185 | * handles y values in range [0, scr_height-1] that correspond to real | |
1186 | * screen positions. y_wrap shift means that first line of bitmap may be | |
1187 | * anywhere on this display. These functions convert lineoffsets to | |
1188 | * bitmap offsets and deal with the wrap-around case by splitting blits. | |
1189 | * | |
1190 | * fbcon_bmove_physical_8() -- These functions fast implementations | |
1191 | * fbcon_clear_physical_8() -- of original fbcon_XXX fns. | |
1192 | * fbcon_putc_physical_8() -- (font width != 8) may be added later | |
1193 | * | |
1194 | * WARNING: | |
1195 | * | |
1196 | * At the moment fbcon_putc() cannot blit across vertical wrap boundary | |
1197 | * Implies should only really hardware scroll in rows. Only reason for | |
1198 | * restriction is simplicity & efficiency at the moment. | |
1199 | */ | |
1200 | ||
1da177e4 LT |
1201 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, |
1202 | int width) | |
1203 | { | |
1204 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1205 | struct fbcon_ops *ops = info->fbcon_par; | |
1206 | ||
1207 | struct display *p = &fb_display[vc->vc_num]; | |
1208 | u_int y_break; | |
1209 | ||
1210 | if (fbcon_is_inactive(vc, info)) | |
1211 | return; | |
1212 | ||
1213 | if (!height || !width) | |
1214 | return; | |
1215 | ||
c213ddf3 KH |
1216 | if (sy < vc->vc_top && vc->vc_top == logo_lines) |
1217 | vc->vc_top = 0; | |
1218 | ||
1da177e4 LT |
1219 | /* Split blits that cross physical y_wrap boundary */ |
1220 | ||
1221 | y_break = p->vrows - p->yscroll; | |
1222 | if (sy < y_break && sy + height - 1 >= y_break) { | |
1223 | u_int b = y_break - sy; | |
1224 | ops->clear(vc, info, real_y(p, sy), sx, b, width); | |
1225 | ops->clear(vc, info, real_y(p, sy + b), sx, height - b, | |
1226 | width); | |
1227 | } else | |
1228 | ops->clear(vc, info, real_y(p, sy), sx, height, width); | |
1229 | } | |
1230 | ||
1231 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
1232 | int count, int ypos, int xpos) | |
1233 | { | |
1234 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1235 | struct display *p = &fb_display[vc->vc_num]; | |
1236 | struct fbcon_ops *ops = info->fbcon_par; | |
1237 | ||
1238 | if (!fbcon_is_inactive(vc, info)) | |
1239 | ops->putcs(vc, info, s, count, real_y(p, ypos), xpos, | |
1240 | get_color(vc, info, scr_readw(s), 1), | |
1241 | get_color(vc, info, scr_readw(s), 0)); | |
1242 | } | |
1243 | ||
1244 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos) | |
1245 | { | |
1246 | unsigned short chr; | |
1247 | ||
1248 | scr_writew(c, &chr); | |
1249 | fbcon_putcs(vc, &chr, 1, ypos, xpos); | |
1250 | } | |
1251 | ||
1252 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) | |
1253 | { | |
1254 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1255 | struct fbcon_ops *ops = info->fbcon_par; | |
1256 | ||
1257 | if (!fbcon_is_inactive(vc, info)) | |
1258 | ops->clear_margins(vc, info, bottom_only); | |
1259 | } | |
1260 | ||
1261 | static void fbcon_cursor(struct vc_data *vc, int mode) | |
1262 | { | |
1263 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1264 | struct fbcon_ops *ops = info->fbcon_par; | |
1da177e4 LT |
1265 | int y; |
1266 | int c = scr_readw((u16 *) vc->vc_pos); | |
1267 | ||
d1e23066 | 1268 | if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1) |
1da177e4 LT |
1269 | return; |
1270 | ||
acba9cd0 AD |
1271 | if (vc->vc_cursor_type & 0x10) |
1272 | fbcon_del_cursor_timer(info); | |
1273 | else | |
1274 | fbcon_add_cursor_timer(info); | |
1275 | ||
1da177e4 LT |
1276 | ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; |
1277 | if (mode & CM_SOFTBACK) { | |
1278 | mode &= ~CM_SOFTBACK; | |
1279 | y = softback_lines; | |
1280 | } else { | |
1281 | if (softback_lines) | |
1282 | fbcon_set_origin(vc); | |
1283 | y = 0; | |
1284 | } | |
1285 | ||
b73deed3 | 1286 | ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1), |
1da177e4 LT |
1287 | get_color(vc, info, c, 0)); |
1288 | vbl_cursor_cnt = CURSOR_DRAW_DELAY; | |
1289 | } | |
1290 | ||
1291 | static int scrollback_phys_max = 0; | |
1292 | static int scrollback_max = 0; | |
1293 | static int scrollback_current = 0; | |
1294 | ||
1da177e4 | 1295 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, |
d1baa4ff | 1296 | int unit) |
1da177e4 | 1297 | { |
d1baa4ff AD |
1298 | struct display *p, *t; |
1299 | struct vc_data **default_mode, *vc; | |
1300 | struct vc_data *svc; | |
e4fc2761 | 1301 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1302 | int rows, cols, charcnt = 256; |
1303 | ||
d1baa4ff AD |
1304 | p = &fb_display[unit]; |
1305 | ||
1da177e4 LT |
1306 | if (var_to_display(p, var, info)) |
1307 | return; | |
d1baa4ff AD |
1308 | |
1309 | vc = vc_cons[unit].d; | |
1310 | ||
1311 | if (!vc) | |
1312 | return; | |
1313 | ||
1314 | default_mode = vc->vc_display_fg; | |
1315 | svc = *default_mode; | |
1da177e4 | 1316 | t = &fb_display[svc->vc_num]; |
d1baa4ff | 1317 | |
1da177e4 | 1318 | if (!vc->vc_font.data) { |
2f4516db | 1319 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1320 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1321 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1322 | p->userfont = t->userfont; | |
1323 | if (p->userfont) | |
1324 | REFCOUNT(p->fontdata)++; | |
1325 | } | |
1326 | if (p->userfont) | |
1327 | charcnt = FNTCHARCNT(p->fontdata); | |
1328 | ||
b8c90945 AD |
1329 | var->activate = FB_ACTIVATE_NOW; |
1330 | info->var.activate = var->activate; | |
e4fc2761 AD |
1331 | var->yoffset = info->var.yoffset; |
1332 | var->xoffset = info->var.xoffset; | |
b8c90945 | 1333 | fb_set_var(info, var); |
e4fc2761 | 1334 | ops->var = info->var; |
b8c90945 | 1335 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1336 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1337 | if (charcnt == 256) { | |
1338 | vc->vc_hi_font_mask = 0; | |
1339 | } else { | |
1340 | vc->vc_hi_font_mask = 0x100; | |
1341 | if (vc->vc_can_do_color) | |
1342 | vc->vc_complement_mask <<= 1; | |
1343 | } | |
1344 | ||
1345 | if (!*svc->vc_uni_pagedir_loc) | |
1346 | con_set_default_unimap(svc); | |
1347 | if (!*vc->vc_uni_pagedir_loc) | |
1348 | con_copy_unimap(vc, svc); | |
1349 | ||
e4fc2761 AD |
1350 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1351 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1352 | cols /= vc->vc_font.width; | |
1353 | rows /= vc->vc_font.height; | |
1da177e4 | 1354 | vc_resize(vc, cols, rows); |
e4fc2761 | 1355 | |
1da177e4 LT |
1356 | if (CON_IS_VISIBLE(vc)) { |
1357 | update_screen(vc); | |
4d9c5b6e AD |
1358 | if (softback_buf) |
1359 | fbcon_update_softback(vc); | |
1da177e4 LT |
1360 | } |
1361 | } | |
1362 | ||
1363 | static __inline__ void ywrap_up(struct vc_data *vc, int count) | |
1364 | { | |
1365 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1366 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1367 | struct display *p = &fb_display[vc->vc_num]; |
1368 | ||
1369 | p->yscroll += count; | |
1370 | if (p->yscroll >= p->vrows) /* Deal with wrap */ | |
1371 | p->yscroll -= p->vrows; | |
e4fc2761 AD |
1372 | ops->var.xoffset = 0; |
1373 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1374 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1375 | ops->update_start(info); | |
1da177e4 LT |
1376 | scrollback_max += count; |
1377 | if (scrollback_max > scrollback_phys_max) | |
1378 | scrollback_max = scrollback_phys_max; | |
1379 | scrollback_current = 0; | |
1380 | } | |
1381 | ||
1382 | static __inline__ void ywrap_down(struct vc_data *vc, int count) | |
1383 | { | |
1384 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1385 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1386 | struct display *p = &fb_display[vc->vc_num]; |
1387 | ||
1388 | p->yscroll -= count; | |
1389 | if (p->yscroll < 0) /* Deal with wrap */ | |
1390 | p->yscroll += p->vrows; | |
e4fc2761 AD |
1391 | ops->var.xoffset = 0; |
1392 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1393 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1394 | ops->update_start(info); | |
1da177e4 LT |
1395 | scrollback_max -= count; |
1396 | if (scrollback_max < 0) | |
1397 | scrollback_max = 0; | |
1398 | scrollback_current = 0; | |
1399 | } | |
1400 | ||
1401 | static __inline__ void ypan_up(struct vc_data *vc, int count) | |
1402 | { | |
1403 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1404 | struct display *p = &fb_display[vc->vc_num]; | |
1405 | struct fbcon_ops *ops = info->fbcon_par; | |
1406 | ||
1407 | p->yscroll += count; | |
1408 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1409 | ops->bmove(vc, info, p->vrows - vc->vc_rows, | |
1410 | 0, 0, 0, vc->vc_rows, vc->vc_cols); | |
1411 | p->yscroll -= p->vrows - vc->vc_rows; | |
1412 | } | |
e4fc2761 AD |
1413 | |
1414 | ops->var.xoffset = 0; | |
1415 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1416 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1417 | ops->update_start(info); | |
1da177e4 LT |
1418 | fbcon_clear_margins(vc, 1); |
1419 | scrollback_max += count; | |
1420 | if (scrollback_max > scrollback_phys_max) | |
1421 | scrollback_max = scrollback_phys_max; | |
1422 | scrollback_current = 0; | |
1423 | } | |
1424 | ||
1425 | static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count) | |
1426 | { | |
1427 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1428 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1429 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1430 | |
1431 | p->yscroll += count; | |
a39bc34e | 1432 | |
1da177e4 LT |
1433 | if (p->yscroll > p->vrows - vc->vc_rows) { |
1434 | p->yscroll -= p->vrows - vc->vc_rows; | |
1da177e4 | 1435 | fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t); |
a39bc34e | 1436 | } |
e4fc2761 AD |
1437 | |
1438 | ops->var.xoffset = 0; | |
1439 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1440 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1441 | ops->update_start(info); | |
1da177e4 LT |
1442 | fbcon_clear_margins(vc, 1); |
1443 | scrollback_max += count; | |
1444 | if (scrollback_max > scrollback_phys_max) | |
1445 | scrollback_max = scrollback_phys_max; | |
1446 | scrollback_current = 0; | |
1447 | } | |
1448 | ||
1449 | static __inline__ void ypan_down(struct vc_data *vc, int count) | |
1450 | { | |
1451 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1452 | struct display *p = &fb_display[vc->vc_num]; | |
1453 | struct fbcon_ops *ops = info->fbcon_par; | |
1454 | ||
1455 | p->yscroll -= count; | |
1456 | if (p->yscroll < 0) { | |
1457 | ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows, | |
1458 | 0, vc->vc_rows, vc->vc_cols); | |
1459 | p->yscroll += p->vrows - vc->vc_rows; | |
1460 | } | |
e4fc2761 AD |
1461 | |
1462 | ops->var.xoffset = 0; | |
1463 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1464 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1465 | ops->update_start(info); | |
1da177e4 LT |
1466 | fbcon_clear_margins(vc, 1); |
1467 | scrollback_max -= count; | |
1468 | if (scrollback_max < 0) | |
1469 | scrollback_max = 0; | |
1470 | scrollback_current = 0; | |
1471 | } | |
1472 | ||
1473 | static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) | |
1474 | { | |
1475 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1476 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1477 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1478 | |
1479 | p->yscroll -= count; | |
a39bc34e | 1480 | |
1da177e4 LT |
1481 | if (p->yscroll < 0) { |
1482 | p->yscroll += p->vrows - vc->vc_rows; | |
1da177e4 | 1483 | fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count); |
a39bc34e | 1484 | } |
e4fc2761 AD |
1485 | |
1486 | ops->var.xoffset = 0; | |
1487 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1488 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1489 | ops->update_start(info); | |
1da177e4 LT |
1490 | fbcon_clear_margins(vc, 1); |
1491 | scrollback_max -= count; | |
1492 | if (scrollback_max < 0) | |
1493 | scrollback_max = 0; | |
1494 | scrollback_current = 0; | |
1495 | } | |
1496 | ||
1497 | static void fbcon_redraw_softback(struct vc_data *vc, struct display *p, | |
1498 | long delta) | |
1499 | { | |
1500 | int count = vc->vc_rows; | |
1501 | unsigned short *d, *s; | |
1502 | unsigned long n; | |
1503 | int line = 0; | |
1504 | ||
1505 | d = (u16 *) softback_curr; | |
1506 | if (d == (u16 *) softback_in) | |
1507 | d = (u16 *) vc->vc_origin; | |
1508 | n = softback_curr + delta * vc->vc_size_row; | |
1509 | softback_lines -= delta; | |
1510 | if (delta < 0) { | |
1511 | if (softback_curr < softback_top && n < softback_buf) { | |
1512 | n += softback_end - softback_buf; | |
1513 | if (n < softback_top) { | |
1514 | softback_lines -= | |
1515 | (softback_top - n) / vc->vc_size_row; | |
1516 | n = softback_top; | |
1517 | } | |
1518 | } else if (softback_curr >= softback_top | |
1519 | && n < softback_top) { | |
1520 | softback_lines -= | |
1521 | (softback_top - n) / vc->vc_size_row; | |
1522 | n = softback_top; | |
1523 | } | |
1524 | } else { | |
1525 | if (softback_curr > softback_in && n >= softback_end) { | |
1526 | n += softback_buf - softback_end; | |
1527 | if (n > softback_in) { | |
1528 | n = softback_in; | |
1529 | softback_lines = 0; | |
1530 | } | |
1531 | } else if (softback_curr <= softback_in && n > softback_in) { | |
1532 | n = softback_in; | |
1533 | softback_lines = 0; | |
1534 | } | |
1535 | } | |
1536 | if (n == softback_curr) | |
1537 | return; | |
1538 | softback_curr = n; | |
1539 | s = (u16 *) softback_curr; | |
1540 | if (s == (u16 *) softback_in) | |
1541 | s = (u16 *) vc->vc_origin; | |
1542 | while (count--) { | |
1543 | unsigned short *start; | |
1544 | unsigned short *le; | |
1545 | unsigned short c; | |
1546 | int x = 0; | |
1547 | unsigned short attr = 1; | |
1548 | ||
1549 | start = s; | |
1550 | le = advance_row(s, 1); | |
1551 | do { | |
1552 | c = scr_readw(s); | |
1553 | if (attr != (c & 0xff00)) { | |
1554 | attr = c & 0xff00; | |
1555 | if (s > start) { | |
1556 | fbcon_putcs(vc, start, s - start, | |
1557 | line, x); | |
1558 | x += s - start; | |
1559 | start = s; | |
1560 | } | |
1561 | } | |
1562 | if (c == scr_readw(d)) { | |
1563 | if (s > start) { | |
1564 | fbcon_putcs(vc, start, s - start, | |
1565 | line, x); | |
1566 | x += s - start + 1; | |
1567 | start = s + 1; | |
1568 | } else { | |
1569 | x++; | |
1570 | start++; | |
1571 | } | |
1572 | } | |
1573 | s++; | |
1574 | d++; | |
1575 | } while (s < le); | |
1576 | if (s > start) | |
1577 | fbcon_putcs(vc, start, s - start, line, x); | |
1578 | line++; | |
1579 | if (d == (u16 *) softback_end) | |
1580 | d = (u16 *) softback_buf; | |
1581 | if (d == (u16 *) softback_in) | |
1582 | d = (u16 *) vc->vc_origin; | |
1583 | if (s == (u16 *) softback_end) | |
1584 | s = (u16 *) softback_buf; | |
1585 | if (s == (u16 *) softback_in) | |
1586 | s = (u16 *) vc->vc_origin; | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
1591 | int line, int count, int dy) | |
1592 | { | |
1593 | unsigned short *s = (unsigned short *) | |
1594 | (vc->vc_origin + vc->vc_size_row * line); | |
1595 | ||
1596 | while (count--) { | |
1597 | unsigned short *start = s; | |
1598 | unsigned short *le = advance_row(s, 1); | |
1599 | unsigned short c; | |
1600 | int x = 0; | |
1601 | unsigned short attr = 1; | |
1602 | ||
1603 | do { | |
1604 | c = scr_readw(s); | |
1605 | if (attr != (c & 0xff00)) { | |
1606 | attr = c & 0xff00; | |
1607 | if (s > start) { | |
1608 | fbcon_putcs(vc, start, s - start, | |
1609 | dy, x); | |
1610 | x += s - start; | |
1611 | start = s; | |
1612 | } | |
1613 | } | |
1614 | console_conditional_schedule(); | |
1615 | s++; | |
1616 | } while (s < le); | |
1617 | if (s > start) | |
1618 | fbcon_putcs(vc, start, s - start, dy, x); | |
1619 | console_conditional_schedule(); | |
1620 | dy++; | |
1621 | } | |
1622 | } | |
1623 | ||
bad07ff7 KH |
1624 | static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info, |
1625 | struct display *p, int line, int count, int ycount) | |
1626 | { | |
1627 | int offset = ycount * vc->vc_cols; | |
1628 | unsigned short *d = (unsigned short *) | |
1629 | (vc->vc_origin + vc->vc_size_row * line); | |
1630 | unsigned short *s = d + offset; | |
1631 | struct fbcon_ops *ops = info->fbcon_par; | |
1632 | ||
1633 | while (count--) { | |
1634 | unsigned short *start = s; | |
1635 | unsigned short *le = advance_row(s, 1); | |
1636 | unsigned short c; | |
1637 | int x = 0; | |
1638 | ||
1639 | do { | |
1640 | c = scr_readw(s); | |
1641 | ||
1642 | if (c == scr_readw(d)) { | |
1643 | if (s > start) { | |
1644 | ops->bmove(vc, info, line + ycount, x, | |
1645 | line, x, 1, s-start); | |
1646 | x += s - start + 1; | |
1647 | start = s + 1; | |
1648 | } else { | |
1649 | x++; | |
1650 | start++; | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | scr_writew(c, d); | |
1655 | console_conditional_schedule(); | |
1656 | s++; | |
1657 | d++; | |
1658 | } while (s < le); | |
1659 | if (s > start) | |
1660 | ops->bmove(vc, info, line + ycount, x, line, x, 1, | |
1661 | s-start); | |
1662 | console_conditional_schedule(); | |
1663 | if (ycount > 0) | |
1664 | line++; | |
1665 | else { | |
1666 | line--; | |
1667 | /* NOTE: We subtract two lines from these pointers */ | |
1668 | s -= vc->vc_size_row; | |
1669 | d -= vc->vc_size_row; | |
1670 | } | |
1671 | } | |
1672 | } | |
1673 | ||
1da177e4 LT |
1674 | static void fbcon_redraw(struct vc_data *vc, struct display *p, |
1675 | int line, int count, int offset) | |
1676 | { | |
1677 | unsigned short *d = (unsigned short *) | |
1678 | (vc->vc_origin + vc->vc_size_row * line); | |
1679 | unsigned short *s = d + offset; | |
1680 | ||
1681 | while (count--) { | |
1682 | unsigned short *start = s; | |
1683 | unsigned short *le = advance_row(s, 1); | |
1684 | unsigned short c; | |
1685 | int x = 0; | |
1686 | unsigned short attr = 1; | |
1687 | ||
1688 | do { | |
1689 | c = scr_readw(s); | |
1690 | if (attr != (c & 0xff00)) { | |
1691 | attr = c & 0xff00; | |
1692 | if (s > start) { | |
1693 | fbcon_putcs(vc, start, s - start, | |
1694 | line, x); | |
1695 | x += s - start; | |
1696 | start = s; | |
1697 | } | |
1698 | } | |
1699 | if (c == scr_readw(d)) { | |
1700 | if (s > start) { | |
1701 | fbcon_putcs(vc, start, s - start, | |
1702 | line, x); | |
1703 | x += s - start + 1; | |
1704 | start = s + 1; | |
1705 | } else { | |
1706 | x++; | |
1707 | start++; | |
1708 | } | |
1709 | } | |
1710 | scr_writew(c, d); | |
1711 | console_conditional_schedule(); | |
1712 | s++; | |
1713 | d++; | |
1714 | } while (s < le); | |
1715 | if (s > start) | |
1716 | fbcon_putcs(vc, start, s - start, line, x); | |
1717 | console_conditional_schedule(); | |
1718 | if (offset > 0) | |
1719 | line++; | |
1720 | else { | |
1721 | line--; | |
1722 | /* NOTE: We subtract two lines from these pointers */ | |
1723 | s -= vc->vc_size_row; | |
1724 | d -= vc->vc_size_row; | |
1725 | } | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | static inline void fbcon_softback_note(struct vc_data *vc, int t, | |
1730 | int count) | |
1731 | { | |
1732 | unsigned short *p; | |
1733 | ||
1734 | if (vc->vc_num != fg_console) | |
1735 | return; | |
1736 | p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); | |
1737 | ||
1738 | while (count) { | |
1739 | scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); | |
1740 | count--; | |
1741 | p = advance_row(p, 1); | |
1742 | softback_in += vc->vc_size_row; | |
1743 | if (softback_in == softback_end) | |
1744 | softback_in = softback_buf; | |
1745 | if (softback_in == softback_top) { | |
1746 | softback_top += vc->vc_size_row; | |
1747 | if (softback_top == softback_end) | |
1748 | softback_top = softback_buf; | |
1749 | } | |
1750 | } | |
1751 | softback_curr = softback_in; | |
1752 | } | |
1753 | ||
1754 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
1755 | int count) | |
1756 | { | |
1757 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1758 | struct display *p = &fb_display[vc->vc_num]; | |
1da177e4 LT |
1759 | int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; |
1760 | ||
1761 | if (fbcon_is_inactive(vc, info)) | |
1762 | return -EINVAL; | |
1763 | ||
1764 | fbcon_cursor(vc, CM_ERASE); | |
1765 | ||
1766 | /* | |
1767 | * ++Geert: Only use ywrap/ypan if the console is in text mode | |
1768 | * ++Andrew: Only use ypan on hardware text mode when scrolling the | |
1769 | * whole screen (prevents flicker). | |
1770 | */ | |
1771 | ||
1772 | switch (dir) { | |
1773 | case SM_UP: | |
1774 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1775 | count = vc->vc_rows; | |
1776 | if (softback_top) | |
1777 | fbcon_softback_note(vc, t, count); | |
1778 | if (logo_shown >= 0) | |
1779 | goto redraw_up; | |
1780 | switch (p->scrollmode) { | |
1781 | case SCROLL_MOVE: | |
bad07ff7 KH |
1782 | fbcon_redraw_blit(vc, info, p, t, b - t - count, |
1783 | count); | |
1784 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1785 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1786 | vc->vc_size_row * | |
1787 | (b - count)), | |
93f78da4 | 1788 | vc->vc_video_erase_char, |
bad07ff7 | 1789 | vc->vc_size_row * count); |
93f78da4 | 1790 | return 1; |
1da177e4 LT |
1791 | break; |
1792 | ||
1793 | case SCROLL_WRAP_MOVE: | |
1794 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1795 | if (t > 0) | |
1796 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1797 | vc->vc_cols); | |
1798 | ywrap_up(vc, count); | |
1799 | if (vc->vc_rows - b > 0) | |
1800 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1801 | vc->vc_rows - b, | |
1802 | vc->vc_cols); | |
1803 | } else if (info->flags & FBINFO_READS_FAST) | |
1804 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1805 | b - t - count, vc->vc_cols); | |
1806 | else | |
1807 | goto redraw_up; | |
1808 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1809 | break; | |
1810 | ||
1811 | case SCROLL_PAN_REDRAW: | |
1812 | if ((p->yscroll + count <= | |
1813 | 2 * (p->vrows - vc->vc_rows)) | |
1814 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1815 | || (scroll_partial | |
1816 | && (b - t - count > | |
1817 | 3 * vc->vc_rows >> 2)))) { | |
1818 | if (t > 0) | |
1819 | fbcon_redraw_move(vc, p, 0, t, count); | |
1820 | ypan_up_redraw(vc, t, count); | |
1821 | if (vc->vc_rows - b > 0) | |
26e780e8 | 1822 | fbcon_redraw_move(vc, p, b, |
1da177e4 LT |
1823 | vc->vc_rows - b, b); |
1824 | } else | |
1825 | fbcon_redraw_move(vc, p, t + count, b - t - count, t); | |
1826 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1827 | break; | |
1828 | ||
1829 | case SCROLL_PAN_MOVE: | |
1830 | if ((p->yscroll + count <= | |
1831 | 2 * (p->vrows - vc->vc_rows)) | |
1832 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1833 | || (scroll_partial | |
1834 | && (b - t - count > | |
1835 | 3 * vc->vc_rows >> 2)))) { | |
1836 | if (t > 0) | |
1837 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1838 | vc->vc_cols); | |
1839 | ypan_up(vc, count); | |
1840 | if (vc->vc_rows - b > 0) | |
1841 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1842 | vc->vc_rows - b, | |
1843 | vc->vc_cols); | |
1844 | } else if (info->flags & FBINFO_READS_FAST) | |
1845 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1846 | b - t - count, vc->vc_cols); | |
1847 | else | |
1848 | goto redraw_up; | |
1849 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1850 | break; | |
1851 | ||
1852 | case SCROLL_REDRAW: | |
1853 | redraw_up: | |
1854 | fbcon_redraw(vc, p, t, b - t - count, | |
1855 | count * vc->vc_cols); | |
1856 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1857 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1858 | vc->vc_size_row * | |
1859 | (b - count)), | |
93f78da4 | 1860 | vc->vc_video_erase_char, |
1da177e4 | 1861 | vc->vc_size_row * count); |
93f78da4 | 1862 | return 1; |
1da177e4 LT |
1863 | } |
1864 | break; | |
1865 | ||
1866 | case SM_DOWN: | |
1867 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1868 | count = vc->vc_rows; | |
e703ecc3 JB |
1869 | if (logo_shown >= 0) |
1870 | goto redraw_down; | |
1da177e4 LT |
1871 | switch (p->scrollmode) { |
1872 | case SCROLL_MOVE: | |
bad07ff7 KH |
1873 | fbcon_redraw_blit(vc, info, p, b - 1, b - t - count, |
1874 | -count); | |
1875 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1876 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1877 | vc->vc_size_row * | |
1878 | t), | |
93f78da4 | 1879 | vc->vc_video_erase_char, |
bad07ff7 | 1880 | vc->vc_size_row * count); |
93f78da4 | 1881 | return 1; |
1da177e4 LT |
1882 | break; |
1883 | ||
1884 | case SCROLL_WRAP_MOVE: | |
1885 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1886 | if (vc->vc_rows - b > 0) | |
1887 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1888 | vc->vc_rows - b, | |
1889 | vc->vc_cols); | |
1890 | ywrap_down(vc, count); | |
1891 | if (t > 0) | |
1892 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1893 | vc->vc_cols); | |
1894 | } else if (info->flags & FBINFO_READS_FAST) | |
1895 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1896 | b - t - count, vc->vc_cols); | |
1897 | else | |
1898 | goto redraw_down; | |
1899 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1900 | break; | |
1901 | ||
1902 | case SCROLL_PAN_MOVE: | |
1903 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1904 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1905 | || (scroll_partial | |
1906 | && (b - t - count > | |
1907 | 3 * vc->vc_rows >> 2)))) { | |
1908 | if (vc->vc_rows - b > 0) | |
1909 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1910 | vc->vc_rows - b, | |
1911 | vc->vc_cols); | |
1912 | ypan_down(vc, count); | |
1913 | if (t > 0) | |
1914 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1915 | vc->vc_cols); | |
1916 | } else if (info->flags & FBINFO_READS_FAST) | |
1917 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1918 | b - t - count, vc->vc_cols); | |
1919 | else | |
1920 | goto redraw_down; | |
1921 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1922 | break; | |
1923 | ||
1924 | case SCROLL_PAN_REDRAW: | |
1925 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1926 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1927 | || (scroll_partial | |
1928 | && (b - t - count > | |
1929 | 3 * vc->vc_rows >> 2)))) { | |
1930 | if (vc->vc_rows - b > 0) | |
1931 | fbcon_redraw_move(vc, p, b, vc->vc_rows - b, | |
1932 | b - count); | |
1933 | ypan_down_redraw(vc, t, count); | |
1934 | if (t > 0) | |
1935 | fbcon_redraw_move(vc, p, count, t, 0); | |
1936 | } else | |
1937 | fbcon_redraw_move(vc, p, t, b - t - count, t + count); | |
1938 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1939 | break; | |
1940 | ||
1941 | case SCROLL_REDRAW: | |
1942 | redraw_down: | |
1943 | fbcon_redraw(vc, p, b - 1, b - t - count, | |
1944 | -count * vc->vc_cols); | |
1945 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1946 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1947 | vc->vc_size_row * | |
1948 | t), | |
93f78da4 | 1949 | vc->vc_video_erase_char, |
1da177e4 | 1950 | vc->vc_size_row * count); |
93f78da4 | 1951 | return 1; |
1da177e4 LT |
1952 | } |
1953 | } | |
93f78da4 | 1954 | return 0; |
1da177e4 LT |
1955 | } |
1956 | ||
1957 | ||
1958 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
1959 | int height, int width) | |
1960 | { | |
1961 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1962 | struct display *p = &fb_display[vc->vc_num]; | |
1963 | ||
1964 | if (fbcon_is_inactive(vc, info)) | |
1965 | return; | |
1966 | ||
1967 | if (!width || !height) | |
1968 | return; | |
1969 | ||
1970 | /* Split blits that cross physical y_wrap case. | |
1971 | * Pathological case involves 4 blits, better to use recursive | |
1972 | * code rather than unrolled case | |
1973 | * | |
1974 | * Recursive invocations don't need to erase the cursor over and | |
1975 | * over again, so we use fbcon_bmove_rec() | |
1976 | */ | |
1977 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width, | |
1978 | p->vrows - p->yscroll); | |
1979 | } | |
1980 | ||
1981 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
1982 | int dy, int dx, int height, int width, u_int y_break) | |
1983 | { | |
1984 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1985 | struct fbcon_ops *ops = info->fbcon_par; | |
1986 | u_int b; | |
1987 | ||
1988 | if (sy < y_break && sy + height > y_break) { | |
1989 | b = y_break - sy; | |
1990 | if (dy < sy) { /* Avoid trashing self */ | |
1991 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
1992 | y_break); | |
1993 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
1994 | height - b, width, y_break); | |
1995 | } else { | |
1996 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
1997 | height - b, width, y_break); | |
1998 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
1999 | y_break); | |
2000 | } | |
2001 | return; | |
2002 | } | |
2003 | ||
2004 | if (dy < y_break && dy + height > y_break) { | |
2005 | b = y_break - dy; | |
2006 | if (dy < sy) { /* Avoid trashing self */ | |
2007 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2008 | y_break); | |
2009 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2010 | height - b, width, y_break); | |
2011 | } else { | |
2012 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2013 | height - b, width, y_break); | |
2014 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2015 | y_break); | |
2016 | } | |
2017 | return; | |
2018 | } | |
2019 | ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx, | |
2020 | height, width); | |
2021 | } | |
2022 | ||
def1be2d | 2023 | static void updatescrollmode(struct display *p, |
e4fc2761 | 2024 | struct fb_info *info, |
1da177e4 LT |
2025 | struct vc_data *vc) |
2026 | { | |
e4fc2761 | 2027 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2028 | int fh = vc->vc_font.height; |
2029 | int cap = info->flags; | |
e4fc2761 AD |
2030 | u16 t = 0; |
2031 | int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep, | |
2032 | info->fix.xpanstep); | |
2033 | int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t); | |
2034 | int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2035 | int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual, | |
2036 | info->var.xres_virtual); | |
2037 | int good_pan = (cap & FBINFO_HWACCEL_YPAN) && | |
2038 | divides(ypan, vc->vc_font.height) && vyres > yres; | |
2039 | int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) && | |
2040 | divides(ywrap, vc->vc_font.height) && | |
244ab72d KP |
2041 | divides(vc->vc_font.height, vyres) && |
2042 | divides(vc->vc_font.height, yres); | |
1da177e4 | 2043 | int reading_fast = cap & FBINFO_READS_FAST; |
e4fc2761 AD |
2044 | int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) && |
2045 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2046 | int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) && | |
2047 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2048 | ||
2049 | p->vrows = vyres/fh; | |
2050 | if (yres > (fh * (vc->vc_rows + 1))) | |
2051 | p->vrows -= (yres - (fh * vc->vc_rows)) / fh; | |
2052 | if ((yres % fh) && (vyres % fh < yres % fh)) | |
1da177e4 LT |
2053 | p->vrows--; |
2054 | ||
2055 | if (good_wrap || good_pan) { | |
2056 | if (reading_fast || fast_copyarea) | |
e4fc2761 AD |
2057 | p->scrollmode = good_wrap ? |
2058 | SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE; | |
1da177e4 LT |
2059 | else |
2060 | p->scrollmode = good_wrap ? SCROLL_REDRAW : | |
2061 | SCROLL_PAN_REDRAW; | |
2062 | } else { | |
2063 | if (reading_fast || (fast_copyarea && !fast_imageblit)) | |
2064 | p->scrollmode = SCROLL_MOVE; | |
2065 | else | |
2066 | p->scrollmode = SCROLL_REDRAW; | |
2067 | } | |
2068 | } | |
2069 | ||
2070 | static int fbcon_resize(struct vc_data *vc, unsigned int width, | |
e400b6ec | 2071 | unsigned int height, unsigned int user) |
1da177e4 LT |
2072 | { |
2073 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2074 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2075 | struct display *p = &fb_display[vc->vc_num]; |
2076 | struct fb_var_screeninfo var = info->var; | |
e4fc2761 AD |
2077 | int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; |
2078 | ||
2079 | virt_w = FBCON_SWAP(ops->rotate, width, height); | |
2080 | virt_h = FBCON_SWAP(ops->rotate, height, width); | |
2081 | virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, | |
2082 | vc->vc_font.height); | |
2083 | virt_fh = FBCON_SWAP(ops->rotate, vc->vc_font.height, | |
2084 | vc->vc_font.width); | |
2085 | var.xres = virt_w * virt_fw; | |
2086 | var.yres = virt_h * virt_fh; | |
1da177e4 LT |
2087 | x_diff = info->var.xres - var.xres; |
2088 | y_diff = info->var.yres - var.yres; | |
e4fc2761 AD |
2089 | if (x_diff < 0 || x_diff > virt_fw || |
2090 | y_diff < 0 || y_diff > virt_fh) { | |
9791d763 | 2091 | const struct fb_videomode *mode; |
1da177e4 LT |
2092 | |
2093 | DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); | |
2094 | mode = fb_find_best_mode(&var, &info->modelist); | |
2095 | if (mode == NULL) | |
2096 | return -EINVAL; | |
3084a895 | 2097 | display_to_var(&var, p); |
1da177e4 | 2098 | fb_videomode_to_var(&var, mode); |
3084a895 | 2099 | |
e4fc2761 | 2100 | if (virt_w > var.xres/virt_fw || virt_h > var.yres/virt_fh) |
1da177e4 | 2101 | return -EINVAL; |
1da177e4 LT |
2102 | |
2103 | DPRINTK("resize now %ix%i\n", var.xres, var.yres); | |
2104 | if (CON_IS_VISIBLE(vc)) { | |
2105 | var.activate = FB_ACTIVATE_NOW | | |
2106 | FB_ACTIVATE_FORCE; | |
2107 | fb_set_var(info, &var); | |
2108 | } | |
2109 | var_to_display(p, &info->var, info); | |
e4fc2761 | 2110 | ops->var = info->var; |
1da177e4 LT |
2111 | } |
2112 | updatescrollmode(p, info, vc); | |
2113 | return 0; | |
2114 | } | |
2115 | ||
2116 | static int fbcon_switch(struct vc_data *vc) | |
2117 | { | |
88fb2c6e | 2118 | struct fb_info *info, *old_info = NULL; |
e4fc2761 | 2119 | struct fbcon_ops *ops; |
1da177e4 LT |
2120 | struct display *p = &fb_display[vc->vc_num]; |
2121 | struct fb_var_screeninfo var; | |
56f0d64d | 2122 | int i, prev_console, charcnt = 256; |
1da177e4 LT |
2123 | |
2124 | info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2125 | ops = info->fbcon_par; |
1da177e4 LT |
2126 | |
2127 | if (softback_top) { | |
1da177e4 LT |
2128 | if (softback_lines) |
2129 | fbcon_set_origin(vc); | |
2130 | softback_top = softback_curr = softback_in = softback_buf; | |
2131 | softback_lines = 0; | |
4d9c5b6e | 2132 | fbcon_update_softback(vc); |
1da177e4 LT |
2133 | } |
2134 | ||
2135 | if (logo_shown >= 0) { | |
2136 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2137 | ||
2138 | if (conp2->vc_top == logo_lines | |
2139 | && conp2->vc_bottom == conp2->vc_rows) | |
2140 | conp2->vc_top = 0; | |
2141 | logo_shown = FBCON_LOGO_CANSHOW; | |
2142 | } | |
2143 | ||
e4fc2761 | 2144 | prev_console = ops->currcon; |
88fb2c6e AD |
2145 | if (prev_console != -1) |
2146 | old_info = registered_fb[con2fb_map[prev_console]]; | |
1da177e4 LT |
2147 | /* |
2148 | * FIXME: If we have multiple fbdev's loaded, we need to | |
2149 | * update all info->currcon. Perhaps, we can place this | |
2150 | * in a centralized structure, but this might break some | |
2151 | * drivers. | |
2152 | * | |
2153 | * info->currcon = vc->vc_num; | |
2154 | */ | |
2155 | for (i = 0; i < FB_MAX; i++) { | |
2156 | if (registered_fb[i] != NULL && registered_fb[i]->fbcon_par) { | |
e4fc2761 | 2157 | struct fbcon_ops *o = registered_fb[i]->fbcon_par; |
1da177e4 | 2158 | |
e4fc2761 | 2159 | o->currcon = vc->vc_num; |
1da177e4 LT |
2160 | } |
2161 | } | |
2162 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); | |
2163 | display_to_var(&var, p); | |
2164 | var.activate = FB_ACTIVATE_NOW; | |
2165 | ||
2166 | /* | |
2167 | * make sure we don't unnecessarily trip the memcmp() | |
2168 | * in fb_set_var() | |
2169 | */ | |
2170 | info->var.activate = var.activate; | |
10732c35 | 2171 | var.vmode |= info->var.vmode & ~FB_VMODE_MASK; |
1da177e4 | 2172 | fb_set_var(info, &var); |
e4fc2761 | 2173 | ops->var = info->var; |
1da177e4 | 2174 | |
39942fd8 KP |
2175 | if (old_info != NULL && (old_info != info || |
2176 | info->flags & FBINFO_MISC_ALWAYS_SETPAR)) { | |
88fb2c6e AD |
2177 | if (info->fbops->fb_set_par) |
2178 | info->fbops->fb_set_par(info); | |
a39bc34e | 2179 | |
5428b044 | 2180 | if (old_info != info) |
a39bc34e | 2181 | fbcon_del_cursor_timer(old_info); |
88fb2c6e | 2182 | } |
1da177e4 | 2183 | |
212f2639 AD |
2184 | if (fbcon_is_inactive(vc, info) || |
2185 | ops->blank_state != FB_BLANK_UNBLANK) | |
2186 | fbcon_del_cursor_timer(info); | |
2187 | else | |
2188 | fbcon_add_cursor_timer(info); | |
2189 | ||
b73deed3 | 2190 | set_blitting_type(vc, info); |
e4fc2761 AD |
2191 | ops->cursor_reset = 1; |
2192 | ||
b73deed3 | 2193 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 2194 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 2195 | set_blitting_type(vc, info); |
e4fc2761 | 2196 | } |
1da177e4 | 2197 | |
b8c90945 | 2198 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 | 2199 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
56f0d64d AD |
2200 | |
2201 | if (p->userfont) | |
2202 | charcnt = FNTCHARCNT(vc->vc_font.data); | |
2203 | ||
2204 | if (charcnt > 256) | |
2205 | vc->vc_complement_mask <<= 1; | |
2206 | ||
1da177e4 LT |
2207 | updatescrollmode(p, info, vc); |
2208 | ||
2209 | switch (p->scrollmode) { | |
2210 | case SCROLL_WRAP_MOVE: | |
2211 | scrollback_phys_max = p->vrows - vc->vc_rows; | |
2212 | break; | |
2213 | case SCROLL_PAN_MOVE: | |
2214 | case SCROLL_PAN_REDRAW: | |
2215 | scrollback_phys_max = p->vrows - 2 * vc->vc_rows; | |
2216 | if (scrollback_phys_max < 0) | |
2217 | scrollback_phys_max = 0; | |
2218 | break; | |
2219 | default: | |
2220 | scrollback_phys_max = 0; | |
2221 | break; | |
2222 | } | |
e4fc2761 | 2223 | |
1da177e4 LT |
2224 | scrollback_max = 0; |
2225 | scrollback_current = 0; | |
4e1567d3 AD |
2226 | |
2227 | if (!fbcon_is_inactive(vc, info)) { | |
2228 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2229 | ops->update_start(info); | |
2230 | } | |
2231 | ||
1da177e4 LT |
2232 | fbcon_set_palette(vc, color_table); |
2233 | fbcon_clear_margins(vc, 0); | |
2234 | ||
2235 | if (logo_shown == FBCON_LOGO_DRAW) { | |
2236 | ||
2237 | logo_shown = fg_console; | |
2238 | /* This is protected above by initmem_freed */ | |
9c44e5f6 | 2239 | fb_show_logo(info, ops->rotate); |
1da177e4 LT |
2240 | update_region(vc, |
2241 | vc->vc_origin + vc->vc_size_row * vc->vc_top, | |
2242 | vc->vc_size_row * (vc->vc_bottom - | |
2243 | vc->vc_top) / 2); | |
2244 | return 0; | |
2245 | } | |
2246 | return 1; | |
2247 | } | |
2248 | ||
2249 | static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, | |
2250 | int blank) | |
2251 | { | |
994efacd RP |
2252 | struct fb_event event; |
2253 | ||
1da177e4 LT |
2254 | if (blank) { |
2255 | unsigned short charmask = vc->vc_hi_font_mask ? | |
2256 | 0x1ff : 0xff; | |
2257 | unsigned short oldc; | |
2258 | ||
2259 | oldc = vc->vc_video_erase_char; | |
2260 | vc->vc_video_erase_char &= charmask; | |
2261 | fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); | |
2262 | vc->vc_video_erase_char = oldc; | |
2263 | } | |
994efacd RP |
2264 | |
2265 | ||
2266 | event.info = info; | |
2267 | event.data = ␣ | |
2268 | fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); | |
1da177e4 LT |
2269 | } |
2270 | ||
2271 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) | |
2272 | { | |
2273 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2274 | struct fbcon_ops *ops = info->fbcon_par; | |
2275 | ||
2276 | if (mode_switch) { | |
2277 | struct fb_var_screeninfo var = info->var; | |
2278 | ||
2279 | ops->graphics = 1; | |
2280 | ||
2281 | if (!blank) { | |
47434847 AD |
2282 | if (info->fbops->fb_save_state) |
2283 | info->fbops->fb_save_state(info); | |
1da177e4 LT |
2284 | var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; |
2285 | fb_set_var(info, &var); | |
2286 | ops->graphics = 0; | |
e4fc2761 | 2287 | ops->var = info->var; |
47434847 AD |
2288 | } else if (info->fbops->fb_restore_state) |
2289 | info->fbops->fb_restore_state(info); | |
1da177e4 LT |
2290 | } |
2291 | ||
2292 | if (!fbcon_is_inactive(vc, info)) { | |
2293 | if (ops->blank_state != blank) { | |
2294 | ops->blank_state = blank; | |
2295 | fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); | |
2296 | ops->cursor_flash = (!blank); | |
2297 | ||
bca404af DES |
2298 | if (!(info->flags & FBINFO_MISC_USEREVENT)) |
2299 | if (fb_blank(info, blank)) | |
2300 | fbcon_generic_blank(vc, info, blank); | |
1da177e4 LT |
2301 | } |
2302 | ||
88fb2c6e AD |
2303 | if (!blank) |
2304 | update_screen(vc); | |
2305 | } | |
2306 | ||
4d8a2d98 | 2307 | if (mode_switch || fbcon_is_inactive(vc, info) || |
212f2639 | 2308 | ops->blank_state != FB_BLANK_UNBLANK) |
88fb2c6e | 2309 | fbcon_del_cursor_timer(info); |
212f2639 AD |
2310 | else |
2311 | fbcon_add_cursor_timer(info); | |
1da177e4 | 2312 | |
88fb2c6e | 2313 | return 0; |
1da177e4 LT |
2314 | } |
2315 | ||
1da177e4 LT |
2316 | static int fbcon_get_font(struct vc_data *vc, struct console_font *font) |
2317 | { | |
2318 | u8 *fontdata = vc->vc_font.data; | |
2319 | u8 *data = font->data; | |
2320 | int i, j; | |
2321 | ||
2322 | font->width = vc->vc_font.width; | |
2323 | font->height = vc->vc_font.height; | |
2324 | font->charcount = vc->vc_hi_font_mask ? 512 : 256; | |
2325 | if (!font->data) | |
2326 | return 0; | |
2327 | ||
2328 | if (font->width <= 8) { | |
2329 | j = vc->vc_font.height; | |
2330 | for (i = 0; i < font->charcount; i++) { | |
2331 | memcpy(data, fontdata, j); | |
2332 | memset(data + j, 0, 32 - j); | |
2333 | data += 32; | |
2334 | fontdata += j; | |
2335 | } | |
2336 | } else if (font->width <= 16) { | |
2337 | j = vc->vc_font.height * 2; | |
2338 | for (i = 0; i < font->charcount; i++) { | |
2339 | memcpy(data, fontdata, j); | |
2340 | memset(data + j, 0, 64 - j); | |
2341 | data += 64; | |
2342 | fontdata += j; | |
2343 | } | |
2344 | } else if (font->width <= 24) { | |
2345 | for (i = 0; i < font->charcount; i++) { | |
2346 | for (j = 0; j < vc->vc_font.height; j++) { | |
2347 | *data++ = fontdata[0]; | |
2348 | *data++ = fontdata[1]; | |
2349 | *data++ = fontdata[2]; | |
2350 | fontdata += sizeof(u32); | |
2351 | } | |
2352 | memset(data, 0, 3 * (32 - j)); | |
2353 | data += 3 * (32 - j); | |
2354 | } | |
2355 | } else { | |
2356 | j = vc->vc_font.height * 4; | |
2357 | for (i = 0; i < font->charcount; i++) { | |
2358 | memcpy(data, fontdata, j); | |
2359 | memset(data + j, 0, 128 - j); | |
2360 | data += 128; | |
2361 | fontdata += j; | |
2362 | } | |
2363 | } | |
2364 | return 0; | |
2365 | } | |
2366 | ||
2367 | static int fbcon_do_set_font(struct vc_data *vc, int w, int h, | |
2f4516db | 2368 | const u8 * data, int userfont) |
1da177e4 LT |
2369 | { |
2370 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2371 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2372 | struct display *p = &fb_display[vc->vc_num]; |
2373 | int resize; | |
2374 | int cnt; | |
2375 | char *old_data = NULL; | |
2376 | ||
2377 | if (CON_IS_VISIBLE(vc) && softback_lines) | |
2378 | fbcon_set_origin(vc); | |
2379 | ||
2380 | resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); | |
2381 | if (p->userfont) | |
2382 | old_data = vc->vc_font.data; | |
2383 | if (userfont) | |
2384 | cnt = FNTCHARCNT(data); | |
2385 | else | |
2386 | cnt = 256; | |
2f4516db | 2387 | vc->vc_font.data = (void *)(p->fontdata = data); |
1da177e4 LT |
2388 | if ((p->userfont = userfont)) |
2389 | REFCOUNT(data)++; | |
2390 | vc->vc_font.width = w; | |
2391 | vc->vc_font.height = h; | |
2392 | if (vc->vc_hi_font_mask && cnt == 256) { | |
2393 | vc->vc_hi_font_mask = 0; | |
2394 | if (vc->vc_can_do_color) { | |
2395 | vc->vc_complement_mask >>= 1; | |
2396 | vc->vc_s_complement_mask >>= 1; | |
2397 | } | |
2398 | ||
2399 | /* ++Edmund: reorder the attribute bits */ | |
2400 | if (vc->vc_can_do_color) { | |
2401 | unsigned short *cp = | |
2402 | (unsigned short *) vc->vc_origin; | |
2403 | int count = vc->vc_screenbuf_size / 2; | |
2404 | unsigned short c; | |
2405 | for (; count > 0; count--, cp++) { | |
2406 | c = scr_readw(cp); | |
2407 | scr_writew(((c & 0xfe00) >> 1) | | |
2408 | (c & 0xff), cp); | |
2409 | } | |
2410 | c = vc->vc_video_erase_char; | |
2411 | vc->vc_video_erase_char = | |
2412 | ((c & 0xfe00) >> 1) | (c & 0xff); | |
2413 | vc->vc_attr >>= 1; | |
2414 | } | |
2415 | } else if (!vc->vc_hi_font_mask && cnt == 512) { | |
2416 | vc->vc_hi_font_mask = 0x100; | |
2417 | if (vc->vc_can_do_color) { | |
2418 | vc->vc_complement_mask <<= 1; | |
2419 | vc->vc_s_complement_mask <<= 1; | |
2420 | } | |
2421 | ||
2422 | /* ++Edmund: reorder the attribute bits */ | |
2423 | { | |
2424 | unsigned short *cp = | |
2425 | (unsigned short *) vc->vc_origin; | |
2426 | int count = vc->vc_screenbuf_size / 2; | |
2427 | unsigned short c; | |
2428 | for (; count > 0; count--, cp++) { | |
2429 | unsigned short newc; | |
2430 | c = scr_readw(cp); | |
2431 | if (vc->vc_can_do_color) | |
2432 | newc = | |
2433 | ((c & 0xff00) << 1) | (c & | |
2434 | 0xff); | |
2435 | else | |
2436 | newc = c & ~0x100; | |
2437 | scr_writew(newc, cp); | |
2438 | } | |
2439 | c = vc->vc_video_erase_char; | |
2440 | if (vc->vc_can_do_color) { | |
2441 | vc->vc_video_erase_char = | |
2442 | ((c & 0xff00) << 1) | (c & 0xff); | |
2443 | vc->vc_attr <<= 1; | |
93f78da4 | 2444 | } else |
1da177e4 LT |
2445 | vc->vc_video_erase_char = c & ~0x100; |
2446 | } | |
2447 | ||
2448 | } | |
2449 | ||
2450 | if (resize) { | |
e4fc2761 AD |
2451 | int cols, rows; |
2452 | ||
2453 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); | |
2454 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2455 | cols /= w; | |
2456 | rows /= h; | |
2457 | vc_resize(vc, cols, rows); | |
4d9c5b6e AD |
2458 | if (CON_IS_VISIBLE(vc) && softback_buf) |
2459 | fbcon_update_softback(vc); | |
1da177e4 LT |
2460 | } else if (CON_IS_VISIBLE(vc) |
2461 | && vc->vc_mode == KD_TEXT) { | |
2462 | fbcon_clear_margins(vc, 0); | |
2463 | update_screen(vc); | |
2464 | } | |
2465 | ||
2466 | if (old_data && (--REFCOUNT(old_data) == 0)) | |
2467 | kfree(old_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2468 | return 0; | |
2469 | } | |
2470 | ||
2471 | static int fbcon_copy_font(struct vc_data *vc, int con) | |
2472 | { | |
2473 | struct display *od = &fb_display[con]; | |
2474 | struct console_font *f = &vc->vc_font; | |
2475 | ||
2476 | if (od->fontdata == f->data) | |
2477 | return 0; /* already the same font... */ | |
2478 | return fbcon_do_set_font(vc, f->width, f->height, od->fontdata, od->userfont); | |
2479 | } | |
2480 | ||
2481 | /* | |
2482 | * User asked to set font; we are guaranteed that | |
2483 | * a) width and height are in range 1..32 | |
2484 | * b) charcount does not exceed 512 | |
2485 | * but lets not assume that, since someone might someday want to use larger | |
2486 | * fonts. And charcount of 512 is small for unicode support. | |
2487 | * | |
2488 | * However, user space gives the font in 32 rows , regardless of | |
2489 | * actual font height. So a new API is needed if support for larger fonts | |
2490 | * is ever implemented. | |
2491 | */ | |
2492 | ||
2493 | static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) | |
2494 | { | |
2d2699d9 | 2495 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; |
1da177e4 LT |
2496 | unsigned charcount = font->charcount; |
2497 | int w = font->width; | |
2498 | int h = font->height; | |
2499 | int size; | |
2500 | int i, csum; | |
2501 | u8 *new_data, *data = font->data; | |
2502 | int pitch = (font->width+7) >> 3; | |
2503 | ||
2504 | /* Is there a reason why fbconsole couldn't handle any charcount >256? | |
2505 | * If not this check should be changed to charcount < 256 */ | |
2506 | if (charcount != 256 && charcount != 512) | |
2507 | return -EINVAL; | |
2508 | ||
2d2699d9 AD |
2509 | /* Make sure drawing engine can handle the font */ |
2510 | if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || | |
2511 | !(info->pixmap.blit_y & (1 << (font->height - 1)))) | |
2512 | return -EINVAL; | |
38b4982c AD |
2513 | |
2514 | /* Make sure driver can handle the font length */ | |
2515 | if (fbcon_invalid_charcount(info, charcount)) | |
2516 | return -EINVAL; | |
2d2699d9 | 2517 | |
1da177e4 LT |
2518 | size = h * pitch * charcount; |
2519 | ||
2520 | new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); | |
2521 | ||
2522 | if (!new_data) | |
2523 | return -ENOMEM; | |
2524 | ||
2525 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
2526 | FNTSIZE(new_data) = size; | |
2527 | FNTCHARCNT(new_data) = charcount; | |
2528 | REFCOUNT(new_data) = 0; /* usage counter */ | |
2529 | for (i=0; i< charcount; i++) { | |
2530 | memcpy(new_data + i*h*pitch, data + i*32*pitch, h*pitch); | |
2531 | } | |
2532 | ||
2533 | /* Since linux has a nice crc32 function use it for counting font | |
2534 | * checksums. */ | |
2535 | csum = crc32(0, new_data, size); | |
2536 | ||
2537 | FNTSUM(new_data) = csum; | |
2538 | /* Check if the same font is on some other console already */ | |
e614b18d | 2539 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
2540 | struct vc_data *tmp = vc_cons[i].d; |
2541 | ||
2542 | if (fb_display[i].userfont && | |
2543 | fb_display[i].fontdata && | |
2544 | FNTSUM(fb_display[i].fontdata) == csum && | |
2545 | FNTSIZE(fb_display[i].fontdata) == size && | |
2546 | tmp->vc_font.width == w && | |
2547 | !memcmp(fb_display[i].fontdata, new_data, size)) { | |
2548 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2f4516db | 2549 | new_data = (u8 *)fb_display[i].fontdata; |
1da177e4 LT |
2550 | break; |
2551 | } | |
2552 | } | |
2553 | return fbcon_do_set_font(vc, font->width, font->height, new_data, 1); | |
2554 | } | |
2555 | ||
2556 | static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name) | |
2557 | { | |
2558 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2f4516db | 2559 | const struct font_desc *f; |
1da177e4 LT |
2560 | |
2561 | if (!name) | |
2d2699d9 AD |
2562 | f = get_default_font(info->var.xres, info->var.yres, |
2563 | info->pixmap.blit_x, info->pixmap.blit_y); | |
1da177e4 LT |
2564 | else if (!(f = find_font(name))) |
2565 | return -ENOENT; | |
2566 | ||
2567 | font->width = f->width; | |
2568 | font->height = f->height; | |
2569 | return fbcon_do_set_font(vc, f->width, f->height, f->data, 0); | |
2570 | } | |
2571 | ||
2572 | static u16 palette_red[16]; | |
2573 | static u16 palette_green[16]; | |
2574 | static u16 palette_blue[16]; | |
2575 | ||
2576 | static struct fb_cmap palette_cmap = { | |
2577 | 0, 16, palette_red, palette_green, palette_blue, NULL | |
2578 | }; | |
2579 | ||
2580 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table) | |
2581 | { | |
2582 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2583 | int i, j, k, depth; | |
2584 | u8 val; | |
2585 | ||
2586 | if (fbcon_is_inactive(vc, info)) | |
2587 | return -EINVAL; | |
2588 | ||
2589 | if (!CON_IS_VISIBLE(vc)) | |
2590 | return 0; | |
2591 | ||
b8c90945 | 2592 | depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
2593 | if (depth > 3) { |
2594 | for (i = j = 0; i < 16; i++) { | |
2595 | k = table[i]; | |
2596 | val = vc->vc_palette[j++]; | |
2597 | palette_red[k] = (val << 8) | val; | |
2598 | val = vc->vc_palette[j++]; | |
2599 | palette_green[k] = (val << 8) | val; | |
2600 | val = vc->vc_palette[j++]; | |
2601 | palette_blue[k] = (val << 8) | val; | |
2602 | } | |
2603 | palette_cmap.len = 16; | |
2604 | palette_cmap.start = 0; | |
2605 | /* | |
2606 | * If framebuffer is capable of less than 16 colors, | |
2607 | * use default palette of fbcon. | |
2608 | */ | |
2609 | } else | |
2610 | fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); | |
2611 | ||
2612 | return fb_set_cmap(&palette_cmap, info); | |
2613 | } | |
2614 | ||
2615 | static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) | |
2616 | { | |
2617 | unsigned long p; | |
2618 | int line; | |
2619 | ||
2620 | if (vc->vc_num != fg_console || !softback_lines) | |
2621 | return (u16 *) (vc->vc_origin + offset); | |
2622 | line = offset / vc->vc_size_row; | |
2623 | if (line >= softback_lines) | |
2624 | return (u16 *) (vc->vc_origin + offset - | |
2625 | softback_lines * vc->vc_size_row); | |
2626 | p = softback_curr + offset; | |
2627 | if (p >= softback_end) | |
2628 | p += softback_buf - softback_end; | |
2629 | return (u16 *) p; | |
2630 | } | |
2631 | ||
2632 | static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, | |
2633 | int *px, int *py) | |
2634 | { | |
2635 | unsigned long ret; | |
2636 | int x, y; | |
2637 | ||
2638 | if (pos >= vc->vc_origin && pos < vc->vc_scr_end) { | |
2639 | unsigned long offset = (pos - vc->vc_origin) / 2; | |
2640 | ||
2641 | x = offset % vc->vc_cols; | |
2642 | y = offset / vc->vc_cols; | |
2643 | if (vc->vc_num == fg_console) | |
2644 | y += softback_lines; | |
2645 | ret = pos + (vc->vc_cols - x) * 2; | |
2646 | } else if (vc->vc_num == fg_console && softback_lines) { | |
2647 | unsigned long offset = pos - softback_curr; | |
2648 | ||
2649 | if (pos < softback_curr) | |
2650 | offset += softback_end - softback_buf; | |
2651 | offset /= 2; | |
2652 | x = offset % vc->vc_cols; | |
2653 | y = offset / vc->vc_cols; | |
2654 | ret = pos + (vc->vc_cols - x) * 2; | |
2655 | if (ret == softback_end) | |
2656 | ret = softback_buf; | |
2657 | if (ret == softback_in) | |
2658 | ret = vc->vc_origin; | |
2659 | } else { | |
2660 | /* Should not happen */ | |
2661 | x = y = 0; | |
2662 | ret = vc->vc_origin; | |
2663 | } | |
2664 | if (px) | |
2665 | *px = x; | |
2666 | if (py) | |
2667 | *py = y; | |
2668 | return ret; | |
2669 | } | |
2670 | ||
2671 | /* As we might be inside of softback, we may work with non-contiguous buffer, | |
2672 | that's why we have to use a separate routine. */ | |
2673 | static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) | |
2674 | { | |
2675 | while (cnt--) { | |
2676 | u16 a = scr_readw(p); | |
2677 | if (!vc->vc_can_do_color) | |
2678 | a ^= 0x0800; | |
2679 | else if (vc->vc_hi_font_mask == 0x100) | |
2680 | a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | | |
2681 | (((a) & 0x0e00) << 4); | |
2682 | else | |
2683 | a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | | |
2684 | (((a) & 0x0700) << 4); | |
2685 | scr_writew(a, p++); | |
2686 | if (p == (u16 *) softback_end) | |
2687 | p = (u16 *) softback_buf; | |
2688 | if (p == (u16 *) softback_in) | |
2689 | p = (u16 *) vc->vc_origin; | |
2690 | } | |
2691 | } | |
2692 | ||
2693 | static int fbcon_scrolldelta(struct vc_data *vc, int lines) | |
2694 | { | |
2695 | struct fb_info *info = registered_fb[con2fb_map[fg_console]]; | |
e4fc2761 | 2696 | struct fbcon_ops *ops = info->fbcon_par; |
2c6cc35c | 2697 | struct display *disp = &fb_display[fg_console]; |
1da177e4 LT |
2698 | int offset, limit, scrollback_old; |
2699 | ||
2700 | if (softback_top) { | |
2701 | if (vc->vc_num != fg_console) | |
2702 | return 0; | |
2703 | if (vc->vc_mode != KD_TEXT || !lines) | |
2704 | return 0; | |
2705 | if (logo_shown >= 0) { | |
2706 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2707 | ||
2708 | if (conp2->vc_top == logo_lines | |
2709 | && conp2->vc_bottom == conp2->vc_rows) | |
2710 | conp2->vc_top = 0; | |
2711 | if (logo_shown == vc->vc_num) { | |
2712 | unsigned long p, q; | |
2713 | int i; | |
2714 | ||
2715 | p = softback_in; | |
2716 | q = vc->vc_origin + | |
2717 | logo_lines * vc->vc_size_row; | |
2718 | for (i = 0; i < logo_lines; i++) { | |
2719 | if (p == softback_top) | |
2720 | break; | |
2721 | if (p == softback_buf) | |
2722 | p = softback_end; | |
2723 | p -= vc->vc_size_row; | |
2724 | q -= vc->vc_size_row; | |
2725 | scr_memcpyw((u16 *) q, (u16 *) p, | |
2726 | vc->vc_size_row); | |
2727 | } | |
308af929 | 2728 | softback_in = softback_curr = p; |
1da177e4 LT |
2729 | update_region(vc, vc->vc_origin, |
2730 | logo_lines * vc->vc_cols); | |
2731 | } | |
2732 | logo_shown = FBCON_LOGO_CANSHOW; | |
2733 | } | |
2734 | fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); | |
2c6cc35c | 2735 | fbcon_redraw_softback(vc, disp, lines); |
1da177e4 LT |
2736 | fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); |
2737 | return 0; | |
2738 | } | |
2739 | ||
2740 | if (!scrollback_phys_max) | |
2741 | return -ENOSYS; | |
2742 | ||
2743 | scrollback_old = scrollback_current; | |
2744 | scrollback_current -= lines; | |
2745 | if (scrollback_current < 0) | |
2746 | scrollback_current = 0; | |
2747 | else if (scrollback_current > scrollback_max) | |
2748 | scrollback_current = scrollback_max; | |
2749 | if (scrollback_current == scrollback_old) | |
2750 | return 0; | |
2751 | ||
2752 | if (fbcon_is_inactive(vc, info)) | |
2753 | return 0; | |
2754 | ||
2755 | fbcon_cursor(vc, CM_ERASE); | |
2756 | ||
2c6cc35c MS |
2757 | offset = disp->yscroll - scrollback_current; |
2758 | limit = disp->vrows; | |
2759 | switch (disp->scrollmode) { | |
1da177e4 LT |
2760 | case SCROLL_WRAP_MOVE: |
2761 | info->var.vmode |= FB_VMODE_YWRAP; | |
2762 | break; | |
2763 | case SCROLL_PAN_MOVE: | |
2764 | case SCROLL_PAN_REDRAW: | |
2765 | limit -= vc->vc_rows; | |
2766 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
2767 | break; | |
2768 | } | |
2769 | if (offset < 0) | |
2770 | offset += limit; | |
2771 | else if (offset >= limit) | |
2772 | offset -= limit; | |
e4fc2761 AD |
2773 | |
2774 | ops->var.xoffset = 0; | |
2775 | ops->var.yoffset = offset * vc->vc_font.height; | |
2776 | ops->update_start(info); | |
2777 | ||
1da177e4 LT |
2778 | if (!scrollback_current) |
2779 | fbcon_cursor(vc, CM_DRAW); | |
2780 | return 0; | |
2781 | } | |
2782 | ||
2783 | static int fbcon_set_origin(struct vc_data *vc) | |
2784 | { | |
2785 | if (softback_lines) | |
2786 | fbcon_scrolldelta(vc, softback_lines); | |
2787 | return 0; | |
2788 | } | |
2789 | ||
2790 | static void fbcon_suspended(struct fb_info *info) | |
2791 | { | |
2792 | struct vc_data *vc = NULL; | |
2793 | struct fbcon_ops *ops = info->fbcon_par; | |
2794 | ||
2795 | if (!ops || ops->currcon < 0) | |
2796 | return; | |
2797 | vc = vc_cons[ops->currcon].d; | |
2798 | ||
2799 | /* Clear cursor, restore saved data */ | |
2800 | fbcon_cursor(vc, CM_ERASE); | |
2801 | } | |
2802 | ||
2803 | static void fbcon_resumed(struct fb_info *info) | |
2804 | { | |
2805 | struct vc_data *vc; | |
2806 | struct fbcon_ops *ops = info->fbcon_par; | |
2807 | ||
2808 | if (!ops || ops->currcon < 0) | |
2809 | return; | |
2810 | vc = vc_cons[ops->currcon].d; | |
2811 | ||
2812 | update_screen(vc); | |
2813 | } | |
2814 | ||
2815 | static void fbcon_modechanged(struct fb_info *info) | |
2816 | { | |
2817 | struct fbcon_ops *ops = info->fbcon_par; | |
2818 | struct vc_data *vc; | |
2819 | struct display *p; | |
2820 | int rows, cols; | |
2821 | ||
2822 | if (!ops || ops->currcon < 0) | |
2823 | return; | |
2824 | vc = vc_cons[ops->currcon].d; | |
e4fc2761 AD |
2825 | if (vc->vc_mode != KD_TEXT || |
2826 | registered_fb[con2fb_map[ops->currcon]] != info) | |
1da177e4 LT |
2827 | return; |
2828 | ||
2829 | p = &fb_display[vc->vc_num]; | |
b73deed3 | 2830 | set_blitting_type(vc, info); |
1da177e4 LT |
2831 | |
2832 | if (CON_IS_VISIBLE(vc)) { | |
2833 | var_to_display(p, &info->var, info); | |
e4fc2761 AD |
2834 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2835 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2836 | cols /= vc->vc_font.width; | |
2837 | rows /= vc->vc_font.height; | |
1da177e4 LT |
2838 | vc_resize(vc, cols, rows); |
2839 | updatescrollmode(p, info, vc); | |
2840 | scrollback_max = 0; | |
2841 | scrollback_current = 0; | |
4e1567d3 AD |
2842 | |
2843 | if (!fbcon_is_inactive(vc, info)) { | |
2844 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2845 | ops->update_start(info); | |
2846 | } | |
2847 | ||
1da177e4 LT |
2848 | fbcon_set_palette(vc, color_table); |
2849 | update_screen(vc); | |
4d9c5b6e AD |
2850 | if (softback_buf) |
2851 | fbcon_update_softback(vc); | |
1da177e4 LT |
2852 | } |
2853 | } | |
2854 | ||
7726e9e1 AD |
2855 | static void fbcon_set_all_vcs(struct fb_info *info) |
2856 | { | |
2857 | struct fbcon_ops *ops = info->fbcon_par; | |
2858 | struct vc_data *vc; | |
2859 | struct display *p; | |
95d67bb1 | 2860 | int i, rows, cols, fg = -1; |
7726e9e1 AD |
2861 | |
2862 | if (!ops || ops->currcon < 0) | |
2863 | return; | |
2864 | ||
e614b18d | 2865 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
7726e9e1 AD |
2866 | vc = vc_cons[i].d; |
2867 | if (!vc || vc->vc_mode != KD_TEXT || | |
2868 | registered_fb[con2fb_map[i]] != info) | |
2869 | continue; | |
2870 | ||
95d67bb1 AD |
2871 | if (CON_IS_VISIBLE(vc)) { |
2872 | fg = i; | |
2873 | continue; | |
2874 | } | |
2875 | ||
7726e9e1 | 2876 | p = &fb_display[vc->vc_num]; |
b73deed3 | 2877 | set_blitting_type(vc, info); |
7726e9e1 | 2878 | var_to_display(p, &info->var, info); |
232fb69a ON |
2879 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2880 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
e4fc2761 AD |
2881 | cols /= vc->vc_font.width; |
2882 | rows /= vc->vc_font.height; | |
7726e9e1 | 2883 | vc_resize(vc, cols, rows); |
7726e9e1 | 2884 | } |
04a2fe57 | 2885 | |
95d67bb1 AD |
2886 | if (fg != -1) |
2887 | fbcon_modechanged(info); | |
7726e9e1 AD |
2888 | } |
2889 | ||
1da177e4 LT |
2890 | static int fbcon_mode_deleted(struct fb_info *info, |
2891 | struct fb_videomode *mode) | |
2892 | { | |
2893 | struct fb_info *fb_info; | |
2894 | struct display *p; | |
2895 | int i, j, found = 0; | |
2896 | ||
2897 | /* before deletion, ensure that mode is not in use */ | |
2898 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2899 | j = con2fb_map[i]; | |
2900 | if (j == -1) | |
2901 | continue; | |
2902 | fb_info = registered_fb[j]; | |
2903 | if (fb_info != info) | |
2904 | continue; | |
2905 | p = &fb_display[i]; | |
2906 | if (!p || !p->mode) | |
2907 | continue; | |
2908 | if (fb_mode_is_equal(p->mode, mode)) { | |
2909 | found = 1; | |
2910 | break; | |
2911 | } | |
2912 | } | |
2913 | return found; | |
2914 | } | |
2915 | ||
cfafca80 JB |
2916 | #ifdef CONFIG_VT_HW_CONSOLE_BINDING |
2917 | static int fbcon_unbind(void) | |
2918 | { | |
2919 | int ret; | |
2920 | ||
2921 | ret = unbind_con_driver(&fb_con, first_fb_vc, last_fb_vc, | |
2922 | fbcon_is_default); | |
2923 | return ret; | |
2924 | } | |
2925 | #else | |
2926 | static inline int fbcon_unbind(void) | |
2927 | { | |
2928 | return -EINVAL; | |
2929 | } | |
2930 | #endif /* CONFIG_VT_HW_CONSOLE_BINDING */ | |
2931 | ||
2932 | static int fbcon_fb_unbind(int idx) | |
2933 | { | |
2934 | int i, new_idx = -1, ret = 0; | |
2935 | ||
2936 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2937 | if (con2fb_map[i] != idx && | |
2938 | con2fb_map[i] != -1) { | |
2939 | new_idx = i; | |
2940 | break; | |
2941 | } | |
2942 | } | |
2943 | ||
2944 | if (new_idx != -1) { | |
2945 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2946 | if (con2fb_map[i] == idx) | |
2947 | set_con2fb_map(i, new_idx, 0); | |
2948 | } | |
2949 | } else | |
2950 | ret = fbcon_unbind(); | |
2951 | ||
2952 | return ret; | |
2953 | } | |
2954 | ||
623e71b0 | 2955 | static int fbcon_fb_unregistered(struct fb_info *info) |
e614b18d | 2956 | { |
623e71b0 | 2957 | int i, idx = info->node; |
e614b18d AD |
2958 | |
2959 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2960 | if (con2fb_map[i] == idx) | |
2961 | con2fb_map[i] = -1; | |
2962 | } | |
2963 | ||
2964 | if (idx == info_idx) { | |
2965 | info_idx = -1; | |
2966 | ||
2967 | for (i = 0; i < FB_MAX; i++) { | |
2968 | if (registered_fb[i] != NULL) { | |
2969 | info_idx = i; | |
2970 | break; | |
2971 | } | |
2972 | } | |
2973 | } | |
2974 | ||
2975 | if (info_idx != -1) { | |
2976 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2977 | if (con2fb_map[i] == -1) | |
2978 | con2fb_map[i] = info_idx; | |
2979 | } | |
2980 | } | |
2981 | ||
2982 | if (!num_registered_fb) | |
2983 | unregister_con_driver(&fb_con); | |
2984 | ||
623e71b0 AD |
2985 | |
2986 | if (primary_device == idx) | |
2987 | primary_device = -1; | |
2988 | ||
2989 | return 0; | |
2990 | } | |
2991 | ||
2992 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY | |
afd1db16 | 2993 | static void fbcon_select_primary(struct fb_info *info) |
623e71b0 | 2994 | { |
623e71b0 AD |
2995 | if (!map_override && primary_device == -1 && |
2996 | fb_is_primary_device(info)) { | |
afd1db16 | 2997 | int i; |
623e71b0 | 2998 | |
afd1db16 AD |
2999 | printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", |
3000 | info->fix.id, info->node); | |
623e71b0 AD |
3001 | primary_device = info->node; |
3002 | ||
afd1db16 | 3003 | for (i = first_fb_vc; i <= last_fb_vc; i++) |
623e71b0 | 3004 | con2fb_map_boot[i] = primary_device; |
623e71b0 | 3005 | |
afd1db16 AD |
3006 | if (con_is_bound(&fb_con)) { |
3007 | printk(KERN_INFO "fbcon: Remapping primary device, " | |
3008 | "fb%i, to tty %i-%i\n", info->node, | |
3009 | first_fb_vc + 1, last_fb_vc + 1); | |
3010 | info_idx = primary_device; | |
623e71b0 | 3011 | } |
623e71b0 AD |
3012 | } |
3013 | ||
623e71b0 AD |
3014 | } |
3015 | #else | |
afd1db16 | 3016 | static inline void fbcon_select_primary(struct fb_info *info) |
623e71b0 | 3017 | { |
afd1db16 | 3018 | return; |
e614b18d | 3019 | } |
623e71b0 | 3020 | #endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */ |
e614b18d | 3021 | |
623e71b0 | 3022 | static int fbcon_fb_registered(struct fb_info *info) |
1da177e4 | 3023 | { |
623e71b0 AD |
3024 | int ret = 0, i, idx = info->node; |
3025 | ||
afd1db16 | 3026 | fbcon_select_primary(info); |
1da177e4 LT |
3027 | |
3028 | if (info_idx == -1) { | |
e614b18d | 3029 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3030 | if (con2fb_map_boot[i] == idx) { |
3031 | info_idx = idx; | |
3032 | break; | |
3033 | } | |
3034 | } | |
e614b18d | 3035 | |
1da177e4 LT |
3036 | if (info_idx != -1) |
3037 | ret = fbcon_takeover(1); | |
3038 | } else { | |
e614b18d | 3039 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
d1baa4ff | 3040 | if (con2fb_map_boot[i] == idx) |
1da177e4 LT |
3041 | set_con2fb_map(i, idx, 0); |
3042 | } | |
3043 | } | |
3044 | ||
3045 | return ret; | |
3046 | } | |
3047 | ||
3048 | static void fbcon_fb_blanked(struct fb_info *info, int blank) | |
3049 | { | |
3050 | struct fbcon_ops *ops = info->fbcon_par; | |
3051 | struct vc_data *vc; | |
3052 | ||
3053 | if (!ops || ops->currcon < 0) | |
3054 | return; | |
3055 | ||
3056 | vc = vc_cons[ops->currcon].d; | |
3057 | if (vc->vc_mode != KD_TEXT || | |
3058 | registered_fb[con2fb_map[ops->currcon]] != info) | |
3059 | return; | |
3060 | ||
3061 | if (CON_IS_VISIBLE(vc)) { | |
3062 | if (blank) | |
3063 | do_blank_screen(0); | |
3064 | else | |
3065 | do_unblank_screen(0); | |
3066 | } | |
3067 | ops->blank_state = blank; | |
3068 | } | |
3069 | ||
3070 | static void fbcon_new_modelist(struct fb_info *info) | |
3071 | { | |
3072 | int i; | |
3073 | struct vc_data *vc; | |
3074 | struct fb_var_screeninfo var; | |
9791d763 | 3075 | const struct fb_videomode *mode; |
1da177e4 | 3076 | |
e614b18d | 3077 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3078 | if (registered_fb[con2fb_map[i]] != info) |
3079 | continue; | |
3080 | if (!fb_display[i].mode) | |
3081 | continue; | |
3082 | vc = vc_cons[i].d; | |
3083 | display_to_var(&var, &fb_display[i]); | |
8fb6567e MJ |
3084 | mode = fb_find_nearest_mode(fb_display[i].mode, |
3085 | &info->modelist); | |
1da177e4 | 3086 | fb_videomode_to_var(&var, mode); |
d1baa4ff | 3087 | fbcon_set_disp(info, &var, vc->vc_num); |
1da177e4 LT |
3088 | } |
3089 | } | |
3090 | ||
38a3dc51 AD |
3091 | static void fbcon_get_requirement(struct fb_info *info, |
3092 | struct fb_blit_caps *caps) | |
3093 | { | |
3094 | struct vc_data *vc; | |
3095 | struct display *p; | |
38a3dc51 AD |
3096 | |
3097 | if (caps->flags) { | |
167f07f1 | 3098 | int i, charcnt; |
38a3dc51 AD |
3099 | |
3100 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3101 | vc = vc_cons[i].d; | |
167f07f1 AD |
3102 | if (vc && vc->vc_mode == KD_TEXT && |
3103 | info->node == con2fb_map[i]) { | |
38a3dc51 AD |
3104 | p = &fb_display[i]; |
3105 | caps->x |= 1 << (vc->vc_font.width - 1); | |
3106 | caps->y |= 1 << (vc->vc_font.height - 1); | |
3107 | charcnt = (p->userfont) ? | |
3108 | FNTCHARCNT(p->fontdata) : 256; | |
3109 | if (caps->len < charcnt) | |
3110 | caps->len = charcnt; | |
3111 | } | |
3112 | } | |
3113 | } else { | |
3114 | vc = vc_cons[fg_console].d; | |
3115 | ||
167f07f1 AD |
3116 | if (vc && vc->vc_mode == KD_TEXT && |
3117 | info->node == con2fb_map[fg_console]) { | |
38a3dc51 | 3118 | p = &fb_display[fg_console]; |
167f07f1 AD |
3119 | caps->x = 1 << (vc->vc_font.width - 1); |
3120 | caps->y = 1 << (vc->vc_font.height - 1); | |
3121 | caps->len = (p->userfont) ? | |
38a3dc51 | 3122 | FNTCHARCNT(p->fontdata) : 256; |
38a3dc51 AD |
3123 | } |
3124 | } | |
3125 | } | |
3126 | ||
1da177e4 LT |
3127 | static int fbcon_event_notify(struct notifier_block *self, |
3128 | unsigned long action, void *data) | |
3129 | { | |
3130 | struct fb_event *event = data; | |
3131 | struct fb_info *info = event->info; | |
3132 | struct fb_videomode *mode; | |
3133 | struct fb_con2fbmap *con2fb; | |
38a3dc51 | 3134 | struct fb_blit_caps *caps; |
1da177e4 LT |
3135 | int ret = 0; |
3136 | ||
e614b18d AD |
3137 | /* |
3138 | * ignore all events except driver registration and deregistration | |
3139 | * if fbcon is not active | |
3140 | */ | |
3141 | if (fbcon_has_exited && !(action == FB_EVENT_FB_REGISTERED || | |
3142 | action == FB_EVENT_FB_UNREGISTERED)) | |
3143 | goto done; | |
3144 | ||
1da177e4 LT |
3145 | switch(action) { |
3146 | case FB_EVENT_SUSPEND: | |
3147 | fbcon_suspended(info); | |
3148 | break; | |
3149 | case FB_EVENT_RESUME: | |
3150 | fbcon_resumed(info); | |
3151 | break; | |
3152 | case FB_EVENT_MODE_CHANGE: | |
3153 | fbcon_modechanged(info); | |
3154 | break; | |
7726e9e1 AD |
3155 | case FB_EVENT_MODE_CHANGE_ALL: |
3156 | fbcon_set_all_vcs(info); | |
3157 | break; | |
1da177e4 LT |
3158 | case FB_EVENT_MODE_DELETE: |
3159 | mode = event->data; | |
3160 | ret = fbcon_mode_deleted(info, mode); | |
3161 | break; | |
cfafca80 JB |
3162 | case FB_EVENT_FB_UNBIND: |
3163 | ret = fbcon_fb_unbind(info->node); | |
3164 | break; | |
1da177e4 | 3165 | case FB_EVENT_FB_REGISTERED: |
623e71b0 | 3166 | ret = fbcon_fb_registered(info); |
1da177e4 | 3167 | break; |
e614b18d | 3168 | case FB_EVENT_FB_UNREGISTERED: |
623e71b0 | 3169 | ret = fbcon_fb_unregistered(info); |
e614b18d | 3170 | break; |
1da177e4 LT |
3171 | case FB_EVENT_SET_CONSOLE_MAP: |
3172 | con2fb = event->data; | |
3173 | ret = set_con2fb_map(con2fb->console - 1, | |
3174 | con2fb->framebuffer, 1); | |
3175 | break; | |
3176 | case FB_EVENT_GET_CONSOLE_MAP: | |
3177 | con2fb = event->data; | |
3178 | con2fb->framebuffer = con2fb_map[con2fb->console - 1]; | |
3179 | break; | |
3180 | case FB_EVENT_BLANK: | |
3181 | fbcon_fb_blanked(info, *(int *)event->data); | |
3182 | break; | |
3183 | case FB_EVENT_NEW_MODELIST: | |
3184 | fbcon_new_modelist(info); | |
3185 | break; | |
38a3dc51 AD |
3186 | case FB_EVENT_GET_REQ: |
3187 | caps = event->data; | |
3188 | fbcon_get_requirement(info, caps); | |
3189 | break; | |
1da177e4 LT |
3190 | } |
3191 | ||
e614b18d | 3192 | done: |
1da177e4 LT |
3193 | return ret; |
3194 | } | |
3195 | ||
3196 | /* | |
3197 | * The console `switch' structure for the frame buffer based console | |
3198 | */ | |
3199 | ||
3200 | static const struct consw fb_con = { | |
3201 | .owner = THIS_MODULE, | |
3202 | .con_startup = fbcon_startup, | |
3203 | .con_init = fbcon_init, | |
3204 | .con_deinit = fbcon_deinit, | |
3205 | .con_clear = fbcon_clear, | |
3206 | .con_putc = fbcon_putc, | |
3207 | .con_putcs = fbcon_putcs, | |
3208 | .con_cursor = fbcon_cursor, | |
3209 | .con_scroll = fbcon_scroll, | |
3210 | .con_bmove = fbcon_bmove, | |
3211 | .con_switch = fbcon_switch, | |
3212 | .con_blank = fbcon_blank, | |
3213 | .con_font_set = fbcon_set_font, | |
3214 | .con_font_get = fbcon_get_font, | |
3215 | .con_font_default = fbcon_set_def_font, | |
3216 | .con_font_copy = fbcon_copy_font, | |
3217 | .con_set_palette = fbcon_set_palette, | |
3218 | .con_scrolldelta = fbcon_scrolldelta, | |
3219 | .con_set_origin = fbcon_set_origin, | |
3220 | .con_invert_region = fbcon_invert_region, | |
3221 | .con_screen_pos = fbcon_screen_pos, | |
3222 | .con_getxy = fbcon_getxy, | |
3223 | .con_resize = fbcon_resize, | |
3224 | }; | |
3225 | ||
3226 | static struct notifier_block fbcon_event_notifier = { | |
3227 | .notifier_call = fbcon_event_notify, | |
3228 | }; | |
3229 | ||
0c6c1ce0 AD |
3230 | static ssize_t store_rotate(struct device *device, |
3231 | struct device_attribute *attr, const char *buf, | |
3232 | size_t count) | |
9a179176 AD |
3233 | { |
3234 | struct fb_info *info; | |
3235 | int rotate, idx; | |
3236 | char **last = NULL; | |
3237 | ||
e614b18d AD |
3238 | if (fbcon_has_exited) |
3239 | return count; | |
3240 | ||
9a179176 AD |
3241 | acquire_console_sem(); |
3242 | idx = con2fb_map[fg_console]; | |
3243 | ||
3244 | if (idx == -1 || registered_fb[idx] == NULL) | |
3245 | goto err; | |
3246 | ||
3247 | info = registered_fb[idx]; | |
3248 | rotate = simple_strtoul(buf, last, 0); | |
3249 | fbcon_rotate(info, rotate); | |
3250 | err: | |
3251 | release_console_sem(); | |
3252 | return count; | |
3253 | } | |
3254 | ||
0c6c1ce0 AD |
3255 | static ssize_t store_rotate_all(struct device *device, |
3256 | struct device_attribute *attr,const char *buf, | |
3257 | size_t count) | |
9a179176 AD |
3258 | { |
3259 | struct fb_info *info; | |
3260 | int rotate, idx; | |
3261 | char **last = NULL; | |
3262 | ||
e614b18d AD |
3263 | if (fbcon_has_exited) |
3264 | return count; | |
3265 | ||
9a179176 AD |
3266 | acquire_console_sem(); |
3267 | idx = con2fb_map[fg_console]; | |
3268 | ||
3269 | if (idx == -1 || registered_fb[idx] == NULL) | |
3270 | goto err; | |
3271 | ||
3272 | info = registered_fb[idx]; | |
3273 | rotate = simple_strtoul(buf, last, 0); | |
3274 | fbcon_rotate_all(info, rotate); | |
3275 | err: | |
3276 | release_console_sem(); | |
3277 | return count; | |
3278 | } | |
3279 | ||
0c6c1ce0 AD |
3280 | static ssize_t show_rotate(struct device *device, |
3281 | struct device_attribute *attr,char *buf) | |
9a179176 AD |
3282 | { |
3283 | struct fb_info *info; | |
3284 | int rotate = 0, idx; | |
3285 | ||
e614b18d AD |
3286 | if (fbcon_has_exited) |
3287 | return 0; | |
3288 | ||
9a179176 AD |
3289 | acquire_console_sem(); |
3290 | idx = con2fb_map[fg_console]; | |
3291 | ||
3292 | if (idx == -1 || registered_fb[idx] == NULL) | |
3293 | goto err; | |
3294 | ||
3295 | info = registered_fb[idx]; | |
3296 | rotate = fbcon_get_rotate(info); | |
3297 | err: | |
3298 | release_console_sem(); | |
3299 | return snprintf(buf, PAGE_SIZE, "%d\n", rotate); | |
3300 | } | |
3301 | ||
0c6c1ce0 AD |
3302 | static ssize_t show_cursor_blink(struct device *device, |
3303 | struct device_attribute *attr, char *buf) | |
acba9cd0 AD |
3304 | { |
3305 | struct fb_info *info; | |
3306 | struct fbcon_ops *ops; | |
3307 | int idx, blink = -1; | |
3308 | ||
3309 | if (fbcon_has_exited) | |
3310 | return 0; | |
3311 | ||
3312 | acquire_console_sem(); | |
3313 | idx = con2fb_map[fg_console]; | |
3314 | ||
3315 | if (idx == -1 || registered_fb[idx] == NULL) | |
3316 | goto err; | |
3317 | ||
3318 | info = registered_fb[idx]; | |
3319 | ops = info->fbcon_par; | |
3320 | ||
3321 | if (!ops) | |
3322 | goto err; | |
3323 | ||
3324 | blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0; | |
3325 | err: | |
3326 | release_console_sem(); | |
3327 | return snprintf(buf, PAGE_SIZE, "%d\n", blink); | |
3328 | } | |
3329 | ||
0c6c1ce0 AD |
3330 | static ssize_t store_cursor_blink(struct device *device, |
3331 | struct device_attribute *attr, | |
acba9cd0 AD |
3332 | const char *buf, size_t count) |
3333 | { | |
3334 | struct fb_info *info; | |
3335 | int blink, idx; | |
3336 | char **last = NULL; | |
3337 | ||
3338 | if (fbcon_has_exited) | |
3339 | return count; | |
3340 | ||
3341 | acquire_console_sem(); | |
3342 | idx = con2fb_map[fg_console]; | |
3343 | ||
3344 | if (idx == -1 || registered_fb[idx] == NULL) | |
3345 | goto err; | |
3346 | ||
3347 | info = registered_fb[idx]; | |
3348 | ||
3349 | if (!info->fbcon_par) | |
3350 | goto err; | |
3351 | ||
3352 | blink = simple_strtoul(buf, last, 0); | |
3353 | ||
3354 | if (blink) { | |
3355 | fbcon_cursor_noblink = 0; | |
3356 | fbcon_add_cursor_timer(info); | |
3357 | } else { | |
3358 | fbcon_cursor_noblink = 1; | |
3359 | fbcon_del_cursor_timer(info); | |
3360 | } | |
3361 | ||
3362 | err: | |
3363 | release_console_sem(); | |
3364 | return count; | |
3365 | } | |
3366 | ||
0c6c1ce0 | 3367 | static struct device_attribute device_attrs[] = { |
9a179176 AD |
3368 | __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), |
3369 | __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all), | |
acba9cd0 AD |
3370 | __ATTR(cursor_blink, S_IRUGO|S_IWUSR, show_cursor_blink, |
3371 | store_cursor_blink), | |
9a179176 AD |
3372 | }; |
3373 | ||
0c6c1ce0 | 3374 | static int fbcon_init_device(void) |
9a179176 | 3375 | { |
0a727dea AD |
3376 | int i, error = 0; |
3377 | ||
3378 | fbcon_has_sysfs = 1; | |
3379 | ||
0c6c1ce0 AD |
3380 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) { |
3381 | error = device_create_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3382 | |
3383 | if (error) | |
3384 | break; | |
3385 | } | |
3386 | ||
3387 | if (error) { | |
3388 | while (--i >= 0) | |
0c6c1ce0 | 3389 | device_remove_file(fbcon_device, &device_attrs[i]); |
0a727dea AD |
3390 | |
3391 | fbcon_has_sysfs = 0; | |
3392 | } | |
9a179176 | 3393 | |
9a179176 AD |
3394 | return 0; |
3395 | } | |
3396 | ||
5428b044 | 3397 | static void fbcon_start(void) |
1da177e4 | 3398 | { |
5428b044 AD |
3399 | if (num_registered_fb) { |
3400 | int i; | |
9a179176 | 3401 | |
5428b044 | 3402 | acquire_console_sem(); |
1da177e4 | 3403 | |
1da177e4 LT |
3404 | for (i = 0; i < FB_MAX; i++) { |
3405 | if (registered_fb[i] != NULL) { | |
3406 | info_idx = i; | |
3407 | break; | |
3408 | } | |
3409 | } | |
5428b044 AD |
3410 | |
3411 | release_console_sem(); | |
1da177e4 LT |
3412 | fbcon_takeover(0); |
3413 | } | |
9a179176 AD |
3414 | } |
3415 | ||
5428b044 | 3416 | static void fbcon_exit(void) |
9a179176 | 3417 | { |
e55186fe AD |
3418 | struct fb_info *info; |
3419 | int i, j, mapped; | |
3420 | ||
e614b18d AD |
3421 | if (fbcon_has_exited) |
3422 | return; | |
3423 | ||
e55186fe | 3424 | kfree((void *)softback_buf); |
5428b044 | 3425 | softback_buf = 0UL; |
e55186fe AD |
3426 | |
3427 | for (i = 0; i < FB_MAX; i++) { | |
beaa4867 GL |
3428 | int pending; |
3429 | ||
e55186fe AD |
3430 | mapped = 0; |
3431 | info = registered_fb[i]; | |
3432 | ||
3433 | if (info == NULL) | |
3434 | continue; | |
3435 | ||
beaa4867 GL |
3436 | pending = cancel_work_sync(&info->queue); |
3437 | DPRINTK("fbcon: %s pending work\n", (pending ? "canceled" : | |
3438 | "no")); | |
3439 | ||
e614b18d AD |
3440 | for (j = first_fb_vc; j <= last_fb_vc; j++) { |
3441 | if (con2fb_map[j] == i) | |
e55186fe | 3442 | mapped = 1; |
e55186fe AD |
3443 | } |
3444 | ||
3445 | if (mapped) { | |
3446 | if (info->fbops->fb_release) | |
3447 | info->fbops->fb_release(info, 0); | |
3448 | module_put(info->fbops->owner); | |
5428b044 AD |
3449 | |
3450 | if (info->fbcon_par) { | |
e299dd4d DJ |
3451 | struct fbcon_ops *ops = info->fbcon_par; |
3452 | ||
5428b044 | 3453 | fbcon_del_cursor_timer(info); |
e299dd4d | 3454 | kfree(ops->cursor_src); |
5428b044 AD |
3455 | kfree(info->fbcon_par); |
3456 | info->fbcon_par = NULL; | |
3457 | } | |
3458 | ||
3459 | if (info->queue.func == fb_flashcursor) | |
3460 | info->queue.func = NULL; | |
e55186fe AD |
3461 | } |
3462 | } | |
3463 | ||
e614b18d | 3464 | fbcon_has_exited = 1; |
5428b044 AD |
3465 | } |
3466 | ||
3467 | static int __init fb_console_init(void) | |
3468 | { | |
3469 | int i; | |
3470 | ||
3471 | acquire_console_sem(); | |
3472 | fb_register_client(&fbcon_event_notifier); | |
77997aaa GKH |
3473 | fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), NULL, |
3474 | "fbcon"); | |
5428b044 | 3475 | |
0c6c1ce0 AD |
3476 | if (IS_ERR(fbcon_device)) { |
3477 | printk(KERN_WARNING "Unable to create device " | |
5428b044 | 3478 | "for fbcon; errno = %ld\n", |
0c6c1ce0 AD |
3479 | PTR_ERR(fbcon_device)); |
3480 | fbcon_device = NULL; | |
5428b044 | 3481 | } else |
0c6c1ce0 | 3482 | fbcon_init_device(); |
5428b044 AD |
3483 | |
3484 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
3485 | con2fb_map[i] = -1; | |
3486 | ||
3487 | release_console_sem(); | |
3488 | fbcon_start(); | |
3489 | return 0; | |
3490 | } | |
3491 | ||
3492 | module_init(fb_console_init); | |
3493 | ||
3494 | #ifdef MODULE | |
3495 | ||
0c6c1ce0 | 3496 | static void __exit fbcon_deinit_device(void) |
5428b044 AD |
3497 | { |
3498 | int i; | |
3499 | ||
0a727dea | 3500 | if (fbcon_has_sysfs) { |
0c6c1ce0 AD |
3501 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) |
3502 | device_remove_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3503 | |
3504 | fbcon_has_sysfs = 0; | |
3505 | } | |
9a179176 AD |
3506 | } |
3507 | ||
1da177e4 LT |
3508 | static void __exit fb_console_exit(void) |
3509 | { | |
3510 | acquire_console_sem(); | |
3511 | fb_unregister_client(&fbcon_event_notifier); | |
0c6c1ce0 AD |
3512 | fbcon_deinit_device(); |
3513 | device_destroy(fb_class, MKDEV(0, 0)); | |
e614b18d | 3514 | fbcon_exit(); |
1da177e4 | 3515 | release_console_sem(); |
e614b18d | 3516 | unregister_con_driver(&fb_con); |
1da177e4 LT |
3517 | } |
3518 | ||
3519 | module_exit(fb_console_exit); | |
3520 | ||
3521 | #endif | |
3522 | ||
3523 | MODULE_LICENSE("GPL"); |