]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/drivers/video/fbcon.c -- Low level frame buffer based console driver | |
3 | * | |
4 | * Copyright (C) 1995 Geert Uytterhoeven | |
5 | * | |
6 | * | |
7 | * This file is based on the original Amiga console driver (amicon.c): | |
8 | * | |
9 | * Copyright (C) 1993 Hamish Macdonald | |
10 | * Greg Harp | |
11 | * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk] | |
12 | * | |
13 | * with work by William Rucklidge (wjr@cs.cornell.edu) | |
14 | * Geert Uytterhoeven | |
15 | * Jes Sorensen (jds@kom.auc.dk) | |
16 | * Martin Apel | |
17 | * | |
18 | * and on the original Atari console driver (atacon.c): | |
19 | * | |
20 | * Copyright (C) 1993 Bjoern Brauel | |
21 | * Roman Hodek | |
22 | * | |
23 | * with work by Guenther Kelleter | |
24 | * Martin Schaller | |
25 | * Andreas Schwab | |
26 | * | |
27 | * Hardware cursor support added by Emmanuel Marty (core@ggi-project.org) | |
28 | * Smart redraw scrolling, arbitrary font width support, 512char font support | |
29 | * and software scrollback added by | |
30 | * Jakub Jelinek (jj@ultra.linux.cz) | |
31 | * | |
32 | * Random hacking by Martin Mares <mj@ucw.cz> | |
33 | * | |
34 | * 2001 - Documented with DocBook | |
35 | * - Brad Douglas <brad@neruo.com> | |
36 | * | |
37 | * The low level operations for the various display memory organizations are | |
38 | * now in separate source files. | |
39 | * | |
40 | * Currently the following organizations are supported: | |
41 | * | |
42 | * o afb Amiga bitplanes | |
43 | * o cfb{2,4,8,16,24,32} Packed pixels | |
44 | * o ilbm Amiga interleaved bitplanes | |
45 | * o iplan2p[248] Atari interleaved bitplanes | |
46 | * o mfb Monochrome | |
47 | * o vga VGA characters/attributes | |
48 | * | |
49 | * To do: | |
50 | * | |
51 | * - Implement 16 plane mode (iplan2p16) | |
52 | * | |
53 | * | |
54 | * This file is subject to the terms and conditions of the GNU General Public | |
55 | * License. See the file COPYING in the main directory of this archive for | |
56 | * more details. | |
57 | */ | |
58 | ||
59 | #undef FBCONDEBUG | |
60 | ||
61 | #include <linux/config.h> | |
62 | #include <linux/module.h> | |
63 | #include <linux/types.h> | |
64 | #include <linux/sched.h> | |
65 | #include <linux/fs.h> | |
66 | #include <linux/kernel.h> | |
67 | #include <linux/delay.h> /* MSch: for IRQ probe */ | |
68 | #include <linux/tty.h> | |
69 | #include <linux/console.h> | |
70 | #include <linux/string.h> | |
71 | #include <linux/kd.h> | |
72 | #include <linux/slab.h> | |
73 | #include <linux/fb.h> | |
74 | #include <linux/vt_kern.h> | |
75 | #include <linux/selection.h> | |
76 | #include <linux/font.h> | |
77 | #include <linux/smp.h> | |
78 | #include <linux/init.h> | |
79 | #include <linux/interrupt.h> | |
80 | #include <linux/crc32.h> /* For counting font checksums */ | |
81 | #include <asm/irq.h> | |
82 | #include <asm/system.h> | |
83 | #include <asm/uaccess.h> | |
84 | #ifdef CONFIG_ATARI | |
85 | #include <asm/atariints.h> | |
86 | #endif | |
87 | #ifdef CONFIG_MAC | |
88 | #include <asm/macints.h> | |
89 | #endif | |
90 | #if defined(__mc68000__) || defined(CONFIG_APUS) | |
91 | #include <asm/machdep.h> | |
92 | #include <asm/setup.h> | |
93 | #endif | |
94 | ||
95 | #include "fbcon.h" | |
96 | ||
97 | #ifdef FBCONDEBUG | |
98 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) | |
99 | #else | |
100 | # define DPRINTK(fmt, args...) | |
101 | #endif | |
102 | ||
103 | enum { | |
104 | FBCON_LOGO_CANSHOW = -1, /* the logo can be shown */ | |
105 | FBCON_LOGO_DRAW = -2, /* draw the logo to a console */ | |
106 | FBCON_LOGO_DONTSHOW = -3 /* do not show the logo */ | |
107 | }; | |
108 | ||
109 | struct display fb_display[MAX_NR_CONSOLES]; | |
e4fc2761 AD |
110 | EXPORT_SYMBOL(fb_display); |
111 | ||
1da177e4 LT |
112 | static signed char con2fb_map[MAX_NR_CONSOLES]; |
113 | static signed char con2fb_map_boot[MAX_NR_CONSOLES]; | |
114 | static int logo_height; | |
115 | static int logo_lines; | |
116 | /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO | |
117 | enums. */ | |
118 | static int logo_shown = FBCON_LOGO_CANSHOW; | |
119 | /* Software scrollback */ | |
120 | static int fbcon_softback_size = 32768; | |
121 | static unsigned long softback_buf, softback_curr; | |
122 | static unsigned long softback_in; | |
123 | static unsigned long softback_top, softback_end; | |
124 | static int softback_lines; | |
125 | /* console mappings */ | |
126 | static int first_fb_vc; | |
127 | static int last_fb_vc = MAX_NR_CONSOLES - 1; | |
128 | static int fbcon_is_default = 1; | |
129 | /* font data */ | |
130 | static char fontname[40]; | |
131 | ||
132 | /* current fb_info */ | |
133 | static int info_idx = -1; | |
134 | ||
e4fc2761 AD |
135 | /* console rotation */ |
136 | static int rotate; | |
137 | ||
1da177e4 LT |
138 | static const struct consw fb_con; |
139 | ||
140 | #define CM_SOFTBACK (8) | |
141 | ||
142 | #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) | |
143 | ||
144 | static void fbcon_free_font(struct display *); | |
145 | static int fbcon_set_origin(struct vc_data *); | |
146 | ||
147 | #define CURSOR_DRAW_DELAY (1) | |
148 | ||
149 | /* # VBL ints between cursor state changes */ | |
1da177e4 LT |
150 | #define ATARI_CURSOR_BLINK_RATE (42) |
151 | #define MAC_CURSOR_BLINK_RATE (32) | |
152 | #define DEFAULT_CURSOR_BLINK_RATE (20) | |
153 | ||
154 | static int vbl_cursor_cnt; | |
155 | ||
156 | #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) | |
157 | ||
158 | /* | |
159 | * Interface used by the world | |
160 | */ | |
161 | ||
162 | static const char *fbcon_startup(void); | |
163 | static void fbcon_init(struct vc_data *vc, int init); | |
164 | static void fbcon_deinit(struct vc_data *vc); | |
165 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, | |
166 | int width); | |
167 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos); | |
168 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
169 | int count, int ypos, int xpos); | |
170 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only); | |
171 | static void fbcon_cursor(struct vc_data *vc, int mode); | |
172 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
173 | int count); | |
174 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
175 | int height, int width); | |
176 | static int fbcon_switch(struct vc_data *vc); | |
177 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); | |
178 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table); | |
179 | static int fbcon_scrolldelta(struct vc_data *vc, int lines); | |
180 | ||
181 | /* | |
182 | * Internal routines | |
183 | */ | |
1da177e4 LT |
184 | static __inline__ void ywrap_up(struct vc_data *vc, int count); |
185 | static __inline__ void ywrap_down(struct vc_data *vc, int count); | |
186 | static __inline__ void ypan_up(struct vc_data *vc, int count); | |
187 | static __inline__ void ypan_down(struct vc_data *vc, int count); | |
188 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
189 | int dy, int dx, int height, int width, u_int y_break); | |
190 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
191 | struct vc_data *vc); | |
192 | static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
193 | int unit); | |
194 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
195 | int line, int count, int dy); | |
196 | ||
197 | #ifdef CONFIG_MAC | |
198 | /* | |
199 | * On the Macintoy, there may or may not be a working VBL int. We need to probe | |
200 | */ | |
201 | static int vbl_detected; | |
202 | ||
203 | static irqreturn_t fb_vbl_detect(int irq, void *dummy, struct pt_regs *fp) | |
204 | { | |
205 | vbl_detected++; | |
206 | return IRQ_HANDLED; | |
207 | } | |
208 | #endif | |
209 | ||
dbcbfe1e AD |
210 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION |
211 | static inline void fbcon_set_rotation(struct fb_info *info, struct display *p) | |
212 | { | |
213 | struct fbcon_ops *ops = info->fbcon_par; | |
214 | ||
215 | if (!(info->flags & FBINFO_MISC_TILEBLITTING) && | |
216 | p->con_rotate < 4) | |
217 | ops->rotate = p->con_rotate; | |
218 | else | |
219 | ops->rotate = 0; | |
220 | } | |
221 | #else | |
e4fc2761 AD |
222 | static inline void fbcon_set_rotation(struct fb_info *info, struct display *p) |
223 | { | |
224 | struct fbcon_ops *ops = info->fbcon_par; | |
225 | ||
226 | ops->rotate = FB_ROTATE_UR; | |
227 | } | |
dbcbfe1e | 228 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ |
e4fc2761 | 229 | |
1da177e4 LT |
230 | static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) |
231 | { | |
232 | struct fbcon_ops *ops = info->fbcon_par; | |
233 | ||
234 | return (info->state != FBINFO_STATE_RUNNING || | |
235 | vc->vc_mode != KD_TEXT || ops->graphics); | |
236 | } | |
237 | ||
238 | static inline int get_color(struct vc_data *vc, struct fb_info *info, | |
239 | u16 c, int is_fg) | |
240 | { | |
b8c90945 | 241 | int depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
242 | int color = 0; |
243 | ||
244 | if (console_blanked) { | |
245 | unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; | |
246 | ||
247 | c = vc->vc_video_erase_char & charmask; | |
248 | } | |
249 | ||
250 | if (depth != 1) | |
251 | color = (is_fg) ? attr_fgcol((vc->vc_hi_font_mask) ? 9 : 8, c) | |
252 | : attr_bgcol((vc->vc_hi_font_mask) ? 13 : 12, c); | |
253 | ||
254 | switch (depth) { | |
255 | case 1: | |
256 | { | |
b8c90945 AD |
257 | int col = ~(0xfff << (max(info->var.green.length, |
258 | max(info->var.red.length, | |
259 | info->var.blue.length)))) & 0xff; | |
260 | ||
1da177e4 | 261 | /* 0 or 1 */ |
b8c90945 AD |
262 | int fg = (info->fix.visual != FB_VISUAL_MONO01) ? col : 0; |
263 | int bg = (info->fix.visual != FB_VISUAL_MONO01) ? 0 : col; | |
1da177e4 LT |
264 | |
265 | if (console_blanked) | |
266 | fg = bg; | |
267 | ||
268 | color = (is_fg) ? fg : bg; | |
269 | break; | |
270 | } | |
271 | case 2: | |
272 | /* | |
273 | * Scale down 16-colors to 4 colors. Default 4-color palette | |
2cc38ed1 AD |
274 | * is grayscale. However, simply dividing the values by 4 |
275 | * will not work, as colors 1, 2 and 3 will be scaled-down | |
276 | * to zero rendering them invisible. So empirically convert | |
277 | * colors to a sane 4-level grayscale. | |
1da177e4 | 278 | */ |
2cc38ed1 AD |
279 | switch (color) { |
280 | case 0: | |
281 | color = 0; /* black */ | |
282 | break; | |
283 | case 1 ... 6: | |
284 | color = 2; /* white */ | |
285 | break; | |
286 | case 7 ... 8: | |
287 | color = 1; /* gray */ | |
288 | break; | |
289 | default: | |
290 | color = 3; /* intense white */ | |
291 | break; | |
292 | } | |
293 | break; | |
1da177e4 LT |
294 | case 3: |
295 | /* | |
296 | * Last 8 entries of default 16-color palette is a more intense | |
297 | * version of the first 8 (i.e., same chrominance, different | |
298 | * luminance). | |
299 | */ | |
300 | color &= 7; | |
301 | break; | |
302 | } | |
303 | ||
304 | ||
305 | return color; | |
306 | } | |
307 | ||
4d9c5b6e AD |
308 | static void fbcon_update_softback(struct vc_data *vc) |
309 | { | |
310 | int l = fbcon_softback_size / vc->vc_size_row; | |
311 | ||
312 | if (l > 5) | |
313 | softback_end = softback_buf + l * vc->vc_size_row; | |
314 | else | |
315 | /* Smaller scrollback makes no sense, and 0 would screw | |
316 | the operation totally */ | |
317 | softback_top = 0; | |
318 | } | |
319 | ||
1da177e4 LT |
320 | static void fb_flashcursor(void *private) |
321 | { | |
322 | struct fb_info *info = private; | |
323 | struct fbcon_ops *ops = info->fbcon_par; | |
324 | struct display *p; | |
325 | struct vc_data *vc = NULL; | |
326 | int c; | |
327 | int mode; | |
328 | ||
329 | if (ops->currcon != -1) | |
330 | vc = vc_cons[ops->currcon].d; | |
331 | ||
332 | if (!vc || !CON_IS_VISIBLE(vc) || | |
333 | fbcon_is_inactive(vc, info) || | |
dbd4f128 MJ |
334 | registered_fb[con2fb_map[vc->vc_num]] != info || |
335 | vc_cons[ops->currcon].d->vc_deccm != 1) | |
1da177e4 LT |
336 | return; |
337 | acquire_console_sem(); | |
338 | p = &fb_display[vc->vc_num]; | |
339 | c = scr_readw((u16 *) vc->vc_pos); | |
340 | mode = (!ops->cursor_flash || ops->cursor_state.enable) ? | |
341 | CM_ERASE : CM_DRAW; | |
342 | ops->cursor(vc, info, p, mode, softback_lines, get_color(vc, info, c, 1), | |
343 | get_color(vc, info, c, 0)); | |
344 | release_console_sem(); | |
345 | } | |
346 | ||
41359dca | 347 | #if defined(CONFIG_ATARI) || defined(CONFIG_MAC) |
1da177e4 LT |
348 | static int cursor_blink_rate; |
349 | static irqreturn_t fb_vbl_handler(int irq, void *dev_id, struct pt_regs *fp) | |
350 | { | |
351 | struct fb_info *info = dev_id; | |
352 | ||
353 | if (vbl_cursor_cnt && --vbl_cursor_cnt == 0) { | |
354 | schedule_work(&info->queue); | |
355 | vbl_cursor_cnt = cursor_blink_rate; | |
356 | } | |
357 | return IRQ_HANDLED; | |
358 | } | |
359 | #endif | |
360 | ||
361 | static void cursor_timer_handler(unsigned long dev_addr) | |
362 | { | |
363 | struct fb_info *info = (struct fb_info *) dev_addr; | |
364 | struct fbcon_ops *ops = info->fbcon_par; | |
365 | ||
366 | schedule_work(&info->queue); | |
367 | mod_timer(&ops->cursor_timer, jiffies + HZ/5); | |
368 | } | |
369 | ||
88fb2c6e AD |
370 | static void fbcon_add_cursor_timer(struct fb_info *info) |
371 | { | |
372 | struct fbcon_ops *ops = info->fbcon_par; | |
373 | ||
374 | if ((!info->queue.func || info->queue.func == fb_flashcursor) && | |
375 | !(ops->flags & FBCON_FLAGS_CURSOR_TIMER)) { | |
376 | if (!info->queue.func) | |
377 | INIT_WORK(&info->queue, fb_flashcursor, info); | |
378 | ||
379 | init_timer(&ops->cursor_timer); | |
380 | ops->cursor_timer.function = cursor_timer_handler; | |
381 | ops->cursor_timer.expires = jiffies + HZ / 5; | |
382 | ops->cursor_timer.data = (unsigned long ) info; | |
383 | add_timer(&ops->cursor_timer); | |
384 | ops->flags |= FBCON_FLAGS_CURSOR_TIMER; | |
385 | } | |
386 | } | |
387 | ||
388 | static void fbcon_del_cursor_timer(struct fb_info *info) | |
389 | { | |
390 | struct fbcon_ops *ops = info->fbcon_par; | |
391 | ||
392 | if (info->queue.func == fb_flashcursor && | |
393 | ops->flags & FBCON_FLAGS_CURSOR_TIMER) { | |
394 | del_timer_sync(&ops->cursor_timer); | |
395 | ops->flags &= ~FBCON_FLAGS_CURSOR_TIMER; | |
396 | } | |
397 | } | |
398 | ||
1da177e4 LT |
399 | #ifndef MODULE |
400 | static int __init fb_console_setup(char *this_opt) | |
401 | { | |
402 | char *options; | |
403 | int i, j; | |
404 | ||
405 | if (!this_opt || !*this_opt) | |
406 | return 0; | |
407 | ||
408 | while ((options = strsep(&this_opt, ",")) != NULL) { | |
409 | if (!strncmp(options, "font:", 5)) | |
410 | strcpy(fontname, options + 5); | |
411 | ||
412 | if (!strncmp(options, "scrollback:", 11)) { | |
413 | options += 11; | |
414 | if (*options) { | |
415 | fbcon_softback_size = simple_strtoul(options, &options, 0); | |
416 | if (*options == 'k' || *options == 'K') { | |
417 | fbcon_softback_size *= 1024; | |
418 | options++; | |
419 | } | |
420 | if (*options != ',') | |
421 | return 0; | |
422 | options++; | |
423 | } else | |
424 | return 0; | |
425 | } | |
426 | ||
427 | if (!strncmp(options, "map:", 4)) { | |
428 | options += 4; | |
429 | if (*options) | |
430 | for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { | |
431 | if (!options[j]) | |
432 | j = 0; | |
433 | con2fb_map_boot[i] = | |
434 | (options[j++]-'0') % FB_MAX; | |
435 | } | |
436 | return 0; | |
437 | } | |
438 | ||
439 | if (!strncmp(options, "vc:", 3)) { | |
440 | options += 3; | |
441 | if (*options) | |
442 | first_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
443 | if (first_fb_vc < 0) | |
444 | first_fb_vc = 0; | |
445 | if (*options++ == '-') | |
446 | last_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
447 | fbcon_is_default = 0; | |
448 | } | |
e4fc2761 AD |
449 | |
450 | if (!strncmp(options, "rotate:", 7)) { | |
451 | options += 7; | |
452 | if (*options) | |
453 | rotate = simple_strtoul(options, &options, 0); | |
454 | if (rotate > 3) | |
455 | rotate = 0; | |
456 | } | |
1da177e4 LT |
457 | } |
458 | return 0; | |
459 | } | |
460 | ||
461 | __setup("fbcon=", fb_console_setup); | |
462 | #endif | |
463 | ||
464 | static int search_fb_in_map(int idx) | |
465 | { | |
466 | int i, retval = 0; | |
467 | ||
468 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
469 | if (con2fb_map[i] == idx) | |
470 | retval = 1; | |
471 | } | |
472 | return retval; | |
473 | } | |
474 | ||
475 | static int search_for_mapped_con(void) | |
476 | { | |
477 | int i, retval = 0; | |
478 | ||
479 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
480 | if (con2fb_map[i] != -1) | |
481 | retval = 1; | |
482 | } | |
483 | return retval; | |
484 | } | |
485 | ||
486 | static int fbcon_takeover(int show_logo) | |
487 | { | |
488 | int err, i; | |
489 | ||
490 | if (!num_registered_fb) | |
491 | return -ENODEV; | |
492 | ||
493 | if (!show_logo) | |
494 | logo_shown = FBCON_LOGO_DONTSHOW; | |
495 | ||
496 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
497 | con2fb_map[i] = info_idx; | |
498 | ||
499 | err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, | |
500 | fbcon_is_default); | |
501 | if (err) { | |
502 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
503 | con2fb_map[i] = -1; | |
504 | } | |
505 | info_idx = -1; | |
506 | } | |
507 | ||
508 | return err; | |
509 | } | |
510 | ||
511 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, | |
512 | int cols, int rows, int new_cols, int new_rows) | |
513 | { | |
514 | /* Need to make room for the logo */ | |
9c44e5f6 | 515 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
516 | int cnt, erase = vc->vc_video_erase_char, step; |
517 | unsigned short *save = NULL, *r, *q; | |
518 | ||
519 | /* | |
520 | * remove underline attribute from erase character | |
521 | * if black and white framebuffer. | |
522 | */ | |
b8c90945 | 523 | if (fb_get_color_depth(&info->var, &info->fix) == 1) |
1da177e4 | 524 | erase &= ~0x400; |
9c44e5f6 | 525 | logo_height = fb_prepare_logo(info, ops->rotate); |
1da177e4 LT |
526 | logo_lines = (logo_height + vc->vc_font.height - 1) / |
527 | vc->vc_font.height; | |
528 | q = (unsigned short *) (vc->vc_origin + | |
529 | vc->vc_size_row * rows); | |
530 | step = logo_lines * cols; | |
531 | for (r = q - logo_lines * cols; r < q; r++) | |
532 | if (scr_readw(r) != vc->vc_video_erase_char) | |
533 | break; | |
534 | if (r != q && new_rows >= rows + logo_lines) { | |
535 | save = kmalloc(logo_lines * new_cols * 2, GFP_KERNEL); | |
536 | if (save) { | |
537 | int i = cols < new_cols ? cols : new_cols; | |
538 | scr_memsetw(save, erase, logo_lines * new_cols * 2); | |
539 | r = q - step; | |
540 | for (cnt = 0; cnt < logo_lines; cnt++, r += i) | |
541 | scr_memcpyw(save + cnt * new_cols, r, 2 * i); | |
542 | r = q; | |
543 | } | |
544 | } | |
545 | if (r == q) { | |
546 | /* We can scroll screen down */ | |
547 | r = q - step - cols; | |
548 | for (cnt = rows - logo_lines; cnt > 0; cnt--) { | |
549 | scr_memcpyw(r + step, r, vc->vc_size_row); | |
550 | r -= cols; | |
551 | } | |
552 | if (!save) { | |
553 | vc->vc_y += logo_lines; | |
554 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
555 | } | |
556 | } | |
557 | scr_memsetw((unsigned short *) vc->vc_origin, | |
558 | erase, | |
559 | vc->vc_size_row * logo_lines); | |
560 | ||
561 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { | |
562 | fbcon_clear_margins(vc, 0); | |
563 | update_screen(vc); | |
564 | } | |
565 | ||
566 | if (save) { | |
567 | q = (unsigned short *) (vc->vc_origin + | |
568 | vc->vc_size_row * | |
569 | rows); | |
570 | scr_memcpyw(q, save, logo_lines * new_cols * 2); | |
571 | vc->vc_y += logo_lines; | |
572 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
573 | kfree(save); | |
574 | } | |
575 | ||
576 | if (logo_lines > vc->vc_bottom) { | |
577 | logo_shown = FBCON_LOGO_CANSHOW; | |
578 | printk(KERN_INFO | |
579 | "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); | |
580 | } else if (logo_shown != FBCON_LOGO_DONTSHOW) { | |
581 | logo_shown = FBCON_LOGO_DRAW; | |
582 | vc->vc_top = logo_lines; | |
583 | } | |
584 | } | |
585 | ||
586 | #ifdef CONFIG_FB_TILEBLITTING | |
587 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info, | |
588 | struct display *p) | |
589 | { | |
590 | struct fbcon_ops *ops = info->fbcon_par; | |
591 | ||
592 | if ((info->flags & FBINFO_MISC_TILEBLITTING)) | |
593 | fbcon_set_tileops(vc, info, p, ops); | |
e4fc2761 AD |
594 | else { |
595 | struct display *disp; | |
596 | ||
597 | disp = (p) ? p : &fb_display[vc->vc_num]; | |
598 | fbcon_set_rotation(info, disp); | |
1da177e4 | 599 | fbcon_set_bitops(ops); |
e4fc2761 | 600 | } |
1da177e4 LT |
601 | } |
602 | #else | |
603 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info, | |
604 | struct display *p) | |
605 | { | |
606 | struct fbcon_ops *ops = info->fbcon_par; | |
e4fc2761 | 607 | struct display *disp; |
1da177e4 LT |
608 | |
609 | info->flags &= ~FBINFO_MISC_TILEBLITTING; | |
e4fc2761 AD |
610 | disp = (p) ? p : &fb_display[vc->vc_num]; |
611 | fbcon_set_rotation(info, disp); | |
1da177e4 LT |
612 | fbcon_set_bitops(ops); |
613 | } | |
614 | #endif /* CONFIG_MISC_TILEBLITTING */ | |
615 | ||
616 | ||
617 | static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, | |
618 | int unit, int oldidx) | |
619 | { | |
620 | struct fbcon_ops *ops = NULL; | |
621 | int err = 0; | |
622 | ||
623 | if (!try_module_get(info->fbops->owner)) | |
624 | err = -ENODEV; | |
625 | ||
626 | if (!err && info->fbops->fb_open && | |
627 | info->fbops->fb_open(info, 0)) | |
628 | err = -ENODEV; | |
629 | ||
630 | if (!err) { | |
631 | ops = kmalloc(sizeof(struct fbcon_ops), GFP_KERNEL); | |
632 | if (!ops) | |
633 | err = -ENOMEM; | |
634 | } | |
635 | ||
636 | if (!err) { | |
637 | memset(ops, 0, sizeof(struct fbcon_ops)); | |
638 | info->fbcon_par = ops; | |
639 | set_blitting_type(vc, info, NULL); | |
640 | } | |
641 | ||
642 | if (err) { | |
643 | con2fb_map[unit] = oldidx; | |
644 | module_put(info->fbops->owner); | |
645 | } | |
646 | ||
647 | return err; | |
648 | } | |
649 | ||
650 | static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo, | |
651 | struct fb_info *newinfo, int unit, | |
652 | int oldidx, int found) | |
653 | { | |
654 | struct fbcon_ops *ops = oldinfo->fbcon_par; | |
655 | int err = 0; | |
656 | ||
657 | if (oldinfo->fbops->fb_release && | |
658 | oldinfo->fbops->fb_release(oldinfo, 0)) { | |
659 | con2fb_map[unit] = oldidx; | |
660 | if (!found && newinfo->fbops->fb_release) | |
661 | newinfo->fbops->fb_release(newinfo, 0); | |
662 | if (!found) | |
663 | module_put(newinfo->fbops->owner); | |
664 | err = -ENODEV; | |
665 | } | |
666 | ||
667 | if (!err) { | |
88fb2c6e | 668 | fbcon_del_cursor_timer(oldinfo); |
1da177e4 LT |
669 | kfree(ops->cursor_state.mask); |
670 | kfree(ops->cursor_data); | |
e4fc2761 | 671 | kfree(ops->fontbuffer); |
1da177e4 LT |
672 | kfree(oldinfo->fbcon_par); |
673 | oldinfo->fbcon_par = NULL; | |
674 | module_put(oldinfo->fbops->owner); | |
dd0314f7 AD |
675 | /* |
676 | If oldinfo and newinfo are driving the same hardware, | |
677 | the fb_release() method of oldinfo may attempt to | |
678 | restore the hardware state. This will leave the | |
679 | newinfo in an undefined state. Thus, a call to | |
680 | fb_set_par() may be needed for the newinfo. | |
681 | */ | |
682 | if (newinfo->fbops->fb_set_par) | |
683 | newinfo->fbops->fb_set_par(newinfo); | |
1da177e4 LT |
684 | } |
685 | ||
686 | return err; | |
687 | } | |
688 | ||
1da177e4 LT |
689 | static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, |
690 | int unit, int show_logo) | |
691 | { | |
692 | struct fbcon_ops *ops = info->fbcon_par; | |
693 | ||
694 | ops->currcon = fg_console; | |
695 | ||
696 | if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) | |
697 | info->fbops->fb_set_par(info); | |
698 | ||
699 | ops->flags |= FBCON_FLAGS_INIT; | |
700 | ops->graphics = 0; | |
701 | ||
702 | if (vc) | |
703 | fbcon_set_disp(info, &info->var, vc); | |
704 | else | |
705 | fbcon_preset_disp(info, &info->var, unit); | |
706 | ||
707 | if (show_logo) { | |
708 | struct vc_data *fg_vc = vc_cons[fg_console].d; | |
709 | struct fb_info *fg_info = | |
710 | registered_fb[con2fb_map[fg_console]]; | |
711 | ||
712 | fbcon_prepare_logo(fg_vc, fg_info, fg_vc->vc_cols, | |
713 | fg_vc->vc_rows, fg_vc->vc_cols, | |
714 | fg_vc->vc_rows); | |
715 | } | |
716 | ||
717 | update_screen(vc_cons[fg_console].d); | |
718 | } | |
719 | ||
720 | /** | |
721 | * set_con2fb_map - map console to frame buffer device | |
722 | * @unit: virtual console number to map | |
723 | * @newidx: frame buffer index to map virtual console to | |
724 | * @user: user request | |
725 | * | |
726 | * Maps a virtual console @unit to a frame buffer device | |
727 | * @newidx. | |
728 | */ | |
729 | static int set_con2fb_map(int unit, int newidx, int user) | |
730 | { | |
731 | struct vc_data *vc = vc_cons[unit].d; | |
732 | int oldidx = con2fb_map[unit]; | |
733 | struct fb_info *info = registered_fb[newidx]; | |
734 | struct fb_info *oldinfo = NULL; | |
735 | int found, err = 0; | |
736 | ||
737 | if (oldidx == newidx) | |
738 | return 0; | |
739 | ||
740 | if (!info) | |
741 | err = -EINVAL; | |
742 | ||
743 | if (!err && !search_for_mapped_con()) { | |
744 | info_idx = newidx; | |
745 | return fbcon_takeover(0); | |
746 | } | |
747 | ||
748 | if (oldidx != -1) | |
749 | oldinfo = registered_fb[oldidx]; | |
750 | ||
751 | found = search_fb_in_map(newidx); | |
752 | ||
753 | acquire_console_sem(); | |
754 | con2fb_map[unit] = newidx; | |
755 | if (!err && !found) | |
756 | err = con2fb_acquire_newinfo(vc, info, unit, oldidx); | |
757 | ||
758 | ||
759 | /* | |
760 | * If old fb is not mapped to any of the consoles, | |
761 | * fbcon should release it. | |
762 | */ | |
763 | if (!err && oldinfo && !search_fb_in_map(oldidx)) | |
764 | err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx, | |
765 | found); | |
766 | ||
767 | if (!err) { | |
768 | int show_logo = (fg_console == 0 && !user && | |
769 | logo_shown != FBCON_LOGO_DONTSHOW); | |
770 | ||
771 | if (!found) | |
88fb2c6e | 772 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
773 | con2fb_map_boot[unit] = newidx; |
774 | con2fb_init_display(vc, info, unit, show_logo); | |
775 | } | |
776 | ||
777 | release_console_sem(); | |
778 | return err; | |
779 | } | |
780 | ||
781 | /* | |
782 | * Low Level Operations | |
783 | */ | |
784 | /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ | |
785 | static int var_to_display(struct display *disp, | |
786 | struct fb_var_screeninfo *var, | |
787 | struct fb_info *info) | |
788 | { | |
789 | disp->xres_virtual = var->xres_virtual; | |
790 | disp->yres_virtual = var->yres_virtual; | |
791 | disp->bits_per_pixel = var->bits_per_pixel; | |
792 | disp->grayscale = var->grayscale; | |
793 | disp->nonstd = var->nonstd; | |
794 | disp->accel_flags = var->accel_flags; | |
795 | disp->height = var->height; | |
796 | disp->width = var->width; | |
797 | disp->red = var->red; | |
798 | disp->green = var->green; | |
799 | disp->blue = var->blue; | |
800 | disp->transp = var->transp; | |
801 | disp->rotate = var->rotate; | |
802 | disp->mode = fb_match_mode(var, &info->modelist); | |
803 | if (disp->mode == NULL) | |
804 | /* This should not happen */ | |
805 | return -EINVAL; | |
806 | return 0; | |
807 | } | |
808 | ||
809 | static void display_to_var(struct fb_var_screeninfo *var, | |
810 | struct display *disp) | |
811 | { | |
812 | fb_videomode_to_var(var, disp->mode); | |
813 | var->xres_virtual = disp->xres_virtual; | |
814 | var->yres_virtual = disp->yres_virtual; | |
815 | var->bits_per_pixel = disp->bits_per_pixel; | |
816 | var->grayscale = disp->grayscale; | |
817 | var->nonstd = disp->nonstd; | |
818 | var->accel_flags = disp->accel_flags; | |
819 | var->height = disp->height; | |
820 | var->width = disp->width; | |
821 | var->red = disp->red; | |
822 | var->green = disp->green; | |
823 | var->blue = disp->blue; | |
824 | var->transp = disp->transp; | |
825 | var->rotate = disp->rotate; | |
826 | } | |
827 | ||
828 | static const char *fbcon_startup(void) | |
829 | { | |
830 | const char *display_desc = "frame buffer device"; | |
831 | struct display *p = &fb_display[fg_console]; | |
832 | struct vc_data *vc = vc_cons[fg_console].d; | |
2f4516db | 833 | const struct font_desc *font = NULL; |
1da177e4 LT |
834 | struct module *owner; |
835 | struct fb_info *info = NULL; | |
836 | struct fbcon_ops *ops; | |
837 | int rows, cols; | |
838 | int irqres; | |
839 | ||
840 | irqres = 1; | |
841 | /* | |
842 | * If num_registered_fb is zero, this is a call for the dummy part. | |
843 | * The frame buffer devices weren't initialized yet. | |
844 | */ | |
845 | if (!num_registered_fb || info_idx == -1) | |
846 | return display_desc; | |
847 | /* | |
848 | * Instead of blindly using registered_fb[0], we use info_idx, set by | |
849 | * fb_console_init(); | |
850 | */ | |
851 | info = registered_fb[info_idx]; | |
852 | if (!info) | |
853 | return NULL; | |
854 | ||
855 | owner = info->fbops->owner; | |
856 | if (!try_module_get(owner)) | |
857 | return NULL; | |
858 | if (info->fbops->fb_open && info->fbops->fb_open(info, 0)) { | |
859 | module_put(owner); | |
860 | return NULL; | |
861 | } | |
862 | ||
863 | ops = kmalloc(sizeof(struct fbcon_ops), GFP_KERNEL); | |
864 | if (!ops) { | |
865 | module_put(owner); | |
866 | return NULL; | |
867 | } | |
868 | ||
869 | memset(ops, 0, sizeof(struct fbcon_ops)); | |
870 | ops->currcon = -1; | |
871 | ops->graphics = 1; | |
e4fc2761 | 872 | ops->cur_rotate = -1; |
1da177e4 | 873 | info->fbcon_par = ops; |
e4fc2761 | 874 | p->con_rotate = rotate; |
1da177e4 LT |
875 | set_blitting_type(vc, info, NULL); |
876 | ||
877 | if (info->fix.type != FB_TYPE_TEXT) { | |
878 | if (fbcon_softback_size) { | |
879 | if (!softback_buf) { | |
880 | softback_buf = | |
881 | (unsigned long) | |
882 | kmalloc(fbcon_softback_size, | |
883 | GFP_KERNEL); | |
884 | if (!softback_buf) { | |
885 | fbcon_softback_size = 0; | |
886 | softback_top = 0; | |
887 | } | |
888 | } | |
889 | } else { | |
890 | if (softback_buf) { | |
891 | kfree((void *) softback_buf); | |
892 | softback_buf = 0; | |
893 | softback_top = 0; | |
894 | } | |
895 | } | |
896 | if (softback_buf) | |
897 | softback_in = softback_top = softback_curr = | |
898 | softback_buf; | |
899 | softback_lines = 0; | |
900 | } | |
901 | ||
902 | /* Setup default font */ | |
903 | if (!p->fontdata) { | |
904 | if (!fontname[0] || !(font = find_font(fontname))) | |
905 | font = get_default_font(info->var.xres, | |
906 | info->var.yres); | |
907 | vc->vc_font.width = font->width; | |
908 | vc->vc_font.height = font->height; | |
2f4516db | 909 | vc->vc_font.data = (void *)(p->fontdata = font->data); |
1da177e4 LT |
910 | vc->vc_font.charcount = 256; /* FIXME Need to support more fonts */ |
911 | } | |
912 | ||
e4fc2761 AD |
913 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
914 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
915 | cols /= vc->vc_font.width; | |
916 | rows /= vc->vc_font.height; | |
1da177e4 LT |
917 | vc_resize(vc, cols, rows); |
918 | ||
919 | DPRINTK("mode: %s\n", info->fix.id); | |
920 | DPRINTK("visual: %d\n", info->fix.visual); | |
921 | DPRINTK("res: %dx%d-%d\n", info->var.xres, | |
922 | info->var.yres, | |
923 | info->var.bits_per_pixel); | |
924 | ||
925 | #ifdef CONFIG_ATARI | |
926 | if (MACH_IS_ATARI) { | |
927 | cursor_blink_rate = ATARI_CURSOR_BLINK_RATE; | |
928 | irqres = | |
929 | request_irq(IRQ_AUTO_4, fb_vbl_handler, | |
930 | IRQ_TYPE_PRIO, "framebuffer vbl", | |
931 | info); | |
932 | } | |
933 | #endif /* CONFIG_ATARI */ | |
934 | ||
935 | #ifdef CONFIG_MAC | |
936 | /* | |
937 | * On a Macintoy, the VBL interrupt may or may not be active. | |
938 | * As interrupt based cursor is more reliable and race free, we | |
939 | * probe for VBL interrupts. | |
940 | */ | |
941 | if (MACH_IS_MAC) { | |
942 | int ct = 0; | |
943 | /* | |
944 | * Probe for VBL: set temp. handler ... | |
945 | */ | |
946 | irqres = request_irq(IRQ_MAC_VBL, fb_vbl_detect, 0, | |
947 | "framebuffer vbl", info); | |
948 | vbl_detected = 0; | |
949 | ||
950 | /* | |
951 | * ... and spin for 20 ms ... | |
952 | */ | |
953 | while (!vbl_detected && ++ct < 1000) | |
954 | udelay(20); | |
955 | ||
956 | if (ct == 1000) | |
957 | printk | |
958 | ("fbcon_startup: No VBL detected, using timer based cursor.\n"); | |
959 | ||
960 | free_irq(IRQ_MAC_VBL, fb_vbl_detect); | |
961 | ||
962 | if (vbl_detected) { | |
963 | /* | |
964 | * interrupt based cursor ok | |
965 | */ | |
966 | cursor_blink_rate = MAC_CURSOR_BLINK_RATE; | |
967 | irqres = | |
968 | request_irq(IRQ_MAC_VBL, fb_vbl_handler, 0, | |
969 | "framebuffer vbl", info); | |
970 | } else { | |
971 | /* | |
972 | * VBL not detected: fall through, use timer based cursor | |
973 | */ | |
974 | irqres = 1; | |
975 | } | |
976 | } | |
977 | #endif /* CONFIG_MAC */ | |
978 | ||
88fb2c6e | 979 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
980 | return display_desc; |
981 | } | |
982 | ||
983 | static void fbcon_init(struct vc_data *vc, int init) | |
984 | { | |
985 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
986 | struct fbcon_ops *ops; | |
987 | struct vc_data **default_mode = vc->vc_display_fg; | |
988 | struct vc_data *svc = *default_mode; | |
989 | struct display *t, *p = &fb_display[vc->vc_num]; | |
990 | int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; | |
306958e8 | 991 | int cap; |
1da177e4 LT |
992 | |
993 | if (info_idx == -1 || info == NULL) | |
994 | return; | |
306958e8 AB |
995 | |
996 | cap = info->flags; | |
997 | ||
1da177e4 LT |
998 | if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || |
999 | (info->fix.type == FB_TYPE_TEXT)) | |
1000 | logo = 0; | |
1001 | ||
1da177e4 LT |
1002 | if (var_to_display(p, &info->var, info)) |
1003 | return; | |
1004 | ||
1005 | /* If we are not the first console on this | |
1006 | fb, copy the font from that console */ | |
1007 | t = &fb_display[svc->vc_num]; | |
1008 | if (!vc->vc_font.data) { | |
2f4516db | 1009 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1010 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1011 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1012 | p->userfont = t->userfont; | |
1013 | if (p->userfont) | |
1014 | REFCOUNT(p->fontdata)++; | |
1015 | } | |
1016 | if (p->userfont) | |
1017 | charcnt = FNTCHARCNT(p->fontdata); | |
b8c90945 | 1018 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1019 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1020 | if (charcnt == 256) { | |
1021 | vc->vc_hi_font_mask = 0; | |
1022 | } else { | |
1023 | vc->vc_hi_font_mask = 0x100; | |
1024 | if (vc->vc_can_do_color) | |
1025 | vc->vc_complement_mask <<= 1; | |
1026 | } | |
1027 | ||
1028 | if (!*svc->vc_uni_pagedir_loc) | |
1029 | con_set_default_unimap(svc); | |
1030 | if (!*vc->vc_uni_pagedir_loc) | |
1031 | con_copy_unimap(vc, svc); | |
1032 | ||
e4fc2761 AD |
1033 | ops = info->fbcon_par; |
1034 | p->con_rotate = rotate; | |
1035 | set_blitting_type(vc, info, NULL); | |
1036 | ||
1da177e4 LT |
1037 | cols = vc->vc_cols; |
1038 | rows = vc->vc_rows; | |
e4fc2761 AD |
1039 | new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1040 | new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1041 | new_cols /= vc->vc_font.width; | |
1042 | new_rows /= vc->vc_font.height; | |
1da177e4 LT |
1043 | vc_resize(vc, new_cols, new_rows); |
1044 | ||
1da177e4 LT |
1045 | /* |
1046 | * We must always set the mode. The mode of the previous console | |
1047 | * driver could be in the same resolution but we are using different | |
1048 | * hardware so we have to initialize the hardware. | |
1049 | * | |
1050 | * We need to do it in fbcon_init() to prevent screen corruption. | |
1051 | */ | |
1052 | if (CON_IS_VISIBLE(vc)) { | |
1053 | if (info->fbops->fb_set_par && | |
1054 | !(ops->flags & FBCON_FLAGS_INIT)) | |
1055 | info->fbops->fb_set_par(info); | |
1056 | ops->flags |= FBCON_FLAGS_INIT; | |
1057 | } | |
1058 | ||
1059 | ops->graphics = 0; | |
1060 | ||
1061 | if ((cap & FBINFO_HWACCEL_COPYAREA) && | |
1062 | !(cap & FBINFO_HWACCEL_DISABLED)) | |
1063 | p->scrollmode = SCROLL_MOVE; | |
1064 | else /* default to something safe */ | |
1065 | p->scrollmode = SCROLL_REDRAW; | |
1066 | ||
1067 | /* | |
1068 | * ++guenther: console.c:vc_allocate() relies on initializing | |
1069 | * vc_{cols,rows}, but we must not set those if we are only | |
1070 | * resizing the console. | |
1071 | */ | |
1072 | if (!init) { | |
1073 | vc->vc_cols = new_cols; | |
1074 | vc->vc_rows = new_rows; | |
1075 | } | |
1076 | ||
1077 | if (logo) | |
1078 | fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); | |
1079 | ||
4d9c5b6e AD |
1080 | if (vc == svc && softback_buf) |
1081 | fbcon_update_softback(vc); | |
e4fc2761 AD |
1082 | |
1083 | if (ops->rotate_font && ops->rotate_font(info, vc, p)) { | |
1084 | ops->rotate = FB_ROTATE_UR; | |
1085 | set_blitting_type(vc, info, p); | |
1086 | } | |
1087 | ||
1da177e4 LT |
1088 | } |
1089 | ||
1090 | static void fbcon_deinit(struct vc_data *vc) | |
1091 | { | |
1092 | struct display *p = &fb_display[vc->vc_num]; | |
1093 | ||
1094 | if (info_idx != -1) | |
1095 | return; | |
1096 | fbcon_free_font(p); | |
1097 | } | |
1098 | ||
1099 | /* ====================================================================== */ | |
1100 | ||
1101 | /* fbcon_XXX routines - interface used by the world | |
1102 | * | |
1103 | * This system is now divided into two levels because of complications | |
1104 | * caused by hardware scrolling. Top level functions: | |
1105 | * | |
1106 | * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins() | |
1107 | * | |
1108 | * handles y values in range [0, scr_height-1] that correspond to real | |
1109 | * screen positions. y_wrap shift means that first line of bitmap may be | |
1110 | * anywhere on this display. These functions convert lineoffsets to | |
1111 | * bitmap offsets and deal with the wrap-around case by splitting blits. | |
1112 | * | |
1113 | * fbcon_bmove_physical_8() -- These functions fast implementations | |
1114 | * fbcon_clear_physical_8() -- of original fbcon_XXX fns. | |
1115 | * fbcon_putc_physical_8() -- (font width != 8) may be added later | |
1116 | * | |
1117 | * WARNING: | |
1118 | * | |
1119 | * At the moment fbcon_putc() cannot blit across vertical wrap boundary | |
1120 | * Implies should only really hardware scroll in rows. Only reason for | |
1121 | * restriction is simplicity & efficiency at the moment. | |
1122 | */ | |
1123 | ||
1da177e4 LT |
1124 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, |
1125 | int width) | |
1126 | { | |
1127 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1128 | struct fbcon_ops *ops = info->fbcon_par; | |
1129 | ||
1130 | struct display *p = &fb_display[vc->vc_num]; | |
1131 | u_int y_break; | |
1132 | ||
1133 | if (fbcon_is_inactive(vc, info)) | |
1134 | return; | |
1135 | ||
1136 | if (!height || !width) | |
1137 | return; | |
1138 | ||
1139 | /* Split blits that cross physical y_wrap boundary */ | |
1140 | ||
1141 | y_break = p->vrows - p->yscroll; | |
1142 | if (sy < y_break && sy + height - 1 >= y_break) { | |
1143 | u_int b = y_break - sy; | |
1144 | ops->clear(vc, info, real_y(p, sy), sx, b, width); | |
1145 | ops->clear(vc, info, real_y(p, sy + b), sx, height - b, | |
1146 | width); | |
1147 | } else | |
1148 | ops->clear(vc, info, real_y(p, sy), sx, height, width); | |
1149 | } | |
1150 | ||
1151 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
1152 | int count, int ypos, int xpos) | |
1153 | { | |
1154 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1155 | struct display *p = &fb_display[vc->vc_num]; | |
1156 | struct fbcon_ops *ops = info->fbcon_par; | |
1157 | ||
1158 | if (!fbcon_is_inactive(vc, info)) | |
1159 | ops->putcs(vc, info, s, count, real_y(p, ypos), xpos, | |
1160 | get_color(vc, info, scr_readw(s), 1), | |
1161 | get_color(vc, info, scr_readw(s), 0)); | |
1162 | } | |
1163 | ||
1164 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos) | |
1165 | { | |
1166 | unsigned short chr; | |
1167 | ||
1168 | scr_writew(c, &chr); | |
1169 | fbcon_putcs(vc, &chr, 1, ypos, xpos); | |
1170 | } | |
1171 | ||
1172 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) | |
1173 | { | |
1174 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1175 | struct fbcon_ops *ops = info->fbcon_par; | |
1176 | ||
1177 | if (!fbcon_is_inactive(vc, info)) | |
1178 | ops->clear_margins(vc, info, bottom_only); | |
1179 | } | |
1180 | ||
1181 | static void fbcon_cursor(struct vc_data *vc, int mode) | |
1182 | { | |
1183 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1184 | struct fbcon_ops *ops = info->fbcon_par; | |
1185 | struct display *p = &fb_display[vc->vc_num]; | |
1186 | int y; | |
1187 | int c = scr_readw((u16 *) vc->vc_pos); | |
1188 | ||
1189 | if (fbcon_is_inactive(vc, info)) | |
1190 | return; | |
1191 | ||
1192 | ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; | |
1193 | if (mode & CM_SOFTBACK) { | |
1194 | mode &= ~CM_SOFTBACK; | |
1195 | y = softback_lines; | |
1196 | } else { | |
1197 | if (softback_lines) | |
1198 | fbcon_set_origin(vc); | |
1199 | y = 0; | |
1200 | } | |
1201 | ||
1202 | ops->cursor(vc, info, p, mode, y, get_color(vc, info, c, 1), | |
1203 | get_color(vc, info, c, 0)); | |
1204 | vbl_cursor_cnt = CURSOR_DRAW_DELAY; | |
1205 | } | |
1206 | ||
1207 | static int scrollback_phys_max = 0; | |
1208 | static int scrollback_max = 0; | |
1209 | static int scrollback_current = 0; | |
1210 | ||
1da177e4 LT |
1211 | /* |
1212 | * If no vc is existent yet, just set struct display | |
1213 | */ | |
1214 | static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
1215 | int unit) | |
1216 | { | |
1217 | struct display *p = &fb_display[unit]; | |
1218 | struct display *t = &fb_display[fg_console]; | |
1219 | ||
1da177e4 LT |
1220 | if (var_to_display(p, var, info)) |
1221 | return; | |
1222 | ||
1223 | p->fontdata = t->fontdata; | |
1224 | p->userfont = t->userfont; | |
1225 | if (p->userfont) | |
1226 | REFCOUNT(p->fontdata)++; | |
1227 | } | |
1228 | ||
1229 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
1230 | struct vc_data *vc) | |
1231 | { | |
1232 | struct display *p = &fb_display[vc->vc_num], *t; | |
1233 | struct vc_data **default_mode = vc->vc_display_fg; | |
1234 | struct vc_data *svc = *default_mode; | |
e4fc2761 | 1235 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1236 | int rows, cols, charcnt = 256; |
1237 | ||
1da177e4 LT |
1238 | if (var_to_display(p, var, info)) |
1239 | return; | |
1240 | t = &fb_display[svc->vc_num]; | |
1241 | if (!vc->vc_font.data) { | |
2f4516db | 1242 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1243 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1244 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1245 | p->userfont = t->userfont; | |
1246 | if (p->userfont) | |
1247 | REFCOUNT(p->fontdata)++; | |
1248 | } | |
1249 | if (p->userfont) | |
1250 | charcnt = FNTCHARCNT(p->fontdata); | |
1251 | ||
b8c90945 AD |
1252 | var->activate = FB_ACTIVATE_NOW; |
1253 | info->var.activate = var->activate; | |
e4fc2761 AD |
1254 | var->yoffset = info->var.yoffset; |
1255 | var->xoffset = info->var.xoffset; | |
b8c90945 | 1256 | fb_set_var(info, var); |
e4fc2761 | 1257 | ops->var = info->var; |
b8c90945 | 1258 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1259 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1260 | if (charcnt == 256) { | |
1261 | vc->vc_hi_font_mask = 0; | |
1262 | } else { | |
1263 | vc->vc_hi_font_mask = 0x100; | |
1264 | if (vc->vc_can_do_color) | |
1265 | vc->vc_complement_mask <<= 1; | |
1266 | } | |
1267 | ||
1268 | if (!*svc->vc_uni_pagedir_loc) | |
1269 | con_set_default_unimap(svc); | |
1270 | if (!*vc->vc_uni_pagedir_loc) | |
1271 | con_copy_unimap(vc, svc); | |
1272 | ||
e4fc2761 AD |
1273 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1274 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1275 | cols /= vc->vc_font.width; | |
1276 | rows /= vc->vc_font.height; | |
1da177e4 | 1277 | vc_resize(vc, cols, rows); |
e4fc2761 | 1278 | |
1da177e4 LT |
1279 | if (CON_IS_VISIBLE(vc)) { |
1280 | update_screen(vc); | |
4d9c5b6e AD |
1281 | if (softback_buf) |
1282 | fbcon_update_softback(vc); | |
1da177e4 LT |
1283 | } |
1284 | } | |
1285 | ||
1286 | static __inline__ void ywrap_up(struct vc_data *vc, int count) | |
1287 | { | |
1288 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1289 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1290 | struct display *p = &fb_display[vc->vc_num]; |
1291 | ||
1292 | p->yscroll += count; | |
1293 | if (p->yscroll >= p->vrows) /* Deal with wrap */ | |
1294 | p->yscroll -= p->vrows; | |
e4fc2761 AD |
1295 | ops->var.xoffset = 0; |
1296 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1297 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1298 | ops->update_start(info); | |
1da177e4 LT |
1299 | scrollback_max += count; |
1300 | if (scrollback_max > scrollback_phys_max) | |
1301 | scrollback_max = scrollback_phys_max; | |
1302 | scrollback_current = 0; | |
1303 | } | |
1304 | ||
1305 | static __inline__ void ywrap_down(struct vc_data *vc, int count) | |
1306 | { | |
1307 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1308 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1309 | struct display *p = &fb_display[vc->vc_num]; |
1310 | ||
1311 | p->yscroll -= count; | |
1312 | if (p->yscroll < 0) /* Deal with wrap */ | |
1313 | p->yscroll += p->vrows; | |
e4fc2761 AD |
1314 | ops->var.xoffset = 0; |
1315 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1316 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1317 | ops->update_start(info); | |
1da177e4 LT |
1318 | scrollback_max -= count; |
1319 | if (scrollback_max < 0) | |
1320 | scrollback_max = 0; | |
1321 | scrollback_current = 0; | |
1322 | } | |
1323 | ||
1324 | static __inline__ void ypan_up(struct vc_data *vc, int count) | |
1325 | { | |
1326 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1327 | struct display *p = &fb_display[vc->vc_num]; | |
1328 | struct fbcon_ops *ops = info->fbcon_par; | |
1329 | ||
1330 | p->yscroll += count; | |
1331 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1332 | ops->bmove(vc, info, p->vrows - vc->vc_rows, | |
1333 | 0, 0, 0, vc->vc_rows, vc->vc_cols); | |
1334 | p->yscroll -= p->vrows - vc->vc_rows; | |
1335 | } | |
e4fc2761 AD |
1336 | |
1337 | ops->var.xoffset = 0; | |
1338 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1339 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1340 | ops->update_start(info); | |
1da177e4 LT |
1341 | fbcon_clear_margins(vc, 1); |
1342 | scrollback_max += count; | |
1343 | if (scrollback_max > scrollback_phys_max) | |
1344 | scrollback_max = scrollback_phys_max; | |
1345 | scrollback_current = 0; | |
1346 | } | |
1347 | ||
1348 | static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count) | |
1349 | { | |
1350 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1351 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1352 | struct display *p = &fb_display[vc->vc_num]; |
1353 | int redraw = 0; | |
1354 | ||
1355 | p->yscroll += count; | |
1356 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1357 | p->yscroll -= p->vrows - vc->vc_rows; | |
1358 | redraw = 1; | |
1359 | } | |
1360 | ||
1da177e4 LT |
1361 | if (redraw) |
1362 | fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t); | |
e4fc2761 AD |
1363 | |
1364 | ops->var.xoffset = 0; | |
1365 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1366 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1367 | ops->update_start(info); | |
1da177e4 LT |
1368 | fbcon_clear_margins(vc, 1); |
1369 | scrollback_max += count; | |
1370 | if (scrollback_max > scrollback_phys_max) | |
1371 | scrollback_max = scrollback_phys_max; | |
1372 | scrollback_current = 0; | |
1373 | } | |
1374 | ||
1375 | static __inline__ void ypan_down(struct vc_data *vc, int count) | |
1376 | { | |
1377 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1378 | struct display *p = &fb_display[vc->vc_num]; | |
1379 | struct fbcon_ops *ops = info->fbcon_par; | |
1380 | ||
1381 | p->yscroll -= count; | |
1382 | if (p->yscroll < 0) { | |
1383 | ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows, | |
1384 | 0, vc->vc_rows, vc->vc_cols); | |
1385 | p->yscroll += p->vrows - vc->vc_rows; | |
1386 | } | |
e4fc2761 AD |
1387 | |
1388 | ops->var.xoffset = 0; | |
1389 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1390 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1391 | ops->update_start(info); | |
1da177e4 LT |
1392 | fbcon_clear_margins(vc, 1); |
1393 | scrollback_max -= count; | |
1394 | if (scrollback_max < 0) | |
1395 | scrollback_max = 0; | |
1396 | scrollback_current = 0; | |
1397 | } | |
1398 | ||
1399 | static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) | |
1400 | { | |
1401 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1402 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1403 | struct display *p = &fb_display[vc->vc_num]; |
1404 | int redraw = 0; | |
1405 | ||
1406 | p->yscroll -= count; | |
1407 | if (p->yscroll < 0) { | |
1408 | p->yscroll += p->vrows - vc->vc_rows; | |
1409 | redraw = 1; | |
1410 | } | |
e4fc2761 | 1411 | |
1da177e4 LT |
1412 | if (redraw) |
1413 | fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count); | |
e4fc2761 AD |
1414 | |
1415 | ops->var.xoffset = 0; | |
1416 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1417 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1418 | ops->update_start(info); | |
1da177e4 LT |
1419 | fbcon_clear_margins(vc, 1); |
1420 | scrollback_max -= count; | |
1421 | if (scrollback_max < 0) | |
1422 | scrollback_max = 0; | |
1423 | scrollback_current = 0; | |
1424 | } | |
1425 | ||
1426 | static void fbcon_redraw_softback(struct vc_data *vc, struct display *p, | |
1427 | long delta) | |
1428 | { | |
1429 | int count = vc->vc_rows; | |
1430 | unsigned short *d, *s; | |
1431 | unsigned long n; | |
1432 | int line = 0; | |
1433 | ||
1434 | d = (u16 *) softback_curr; | |
1435 | if (d == (u16 *) softback_in) | |
1436 | d = (u16 *) vc->vc_origin; | |
1437 | n = softback_curr + delta * vc->vc_size_row; | |
1438 | softback_lines -= delta; | |
1439 | if (delta < 0) { | |
1440 | if (softback_curr < softback_top && n < softback_buf) { | |
1441 | n += softback_end - softback_buf; | |
1442 | if (n < softback_top) { | |
1443 | softback_lines -= | |
1444 | (softback_top - n) / vc->vc_size_row; | |
1445 | n = softback_top; | |
1446 | } | |
1447 | } else if (softback_curr >= softback_top | |
1448 | && n < softback_top) { | |
1449 | softback_lines -= | |
1450 | (softback_top - n) / vc->vc_size_row; | |
1451 | n = softback_top; | |
1452 | } | |
1453 | } else { | |
1454 | if (softback_curr > softback_in && n >= softback_end) { | |
1455 | n += softback_buf - softback_end; | |
1456 | if (n > softback_in) { | |
1457 | n = softback_in; | |
1458 | softback_lines = 0; | |
1459 | } | |
1460 | } else if (softback_curr <= softback_in && n > softback_in) { | |
1461 | n = softback_in; | |
1462 | softback_lines = 0; | |
1463 | } | |
1464 | } | |
1465 | if (n == softback_curr) | |
1466 | return; | |
1467 | softback_curr = n; | |
1468 | s = (u16 *) softback_curr; | |
1469 | if (s == (u16 *) softback_in) | |
1470 | s = (u16 *) vc->vc_origin; | |
1471 | while (count--) { | |
1472 | unsigned short *start; | |
1473 | unsigned short *le; | |
1474 | unsigned short c; | |
1475 | int x = 0; | |
1476 | unsigned short attr = 1; | |
1477 | ||
1478 | start = s; | |
1479 | le = advance_row(s, 1); | |
1480 | do { | |
1481 | c = scr_readw(s); | |
1482 | if (attr != (c & 0xff00)) { | |
1483 | attr = c & 0xff00; | |
1484 | if (s > start) { | |
1485 | fbcon_putcs(vc, start, s - start, | |
1486 | line, x); | |
1487 | x += s - start; | |
1488 | start = s; | |
1489 | } | |
1490 | } | |
1491 | if (c == scr_readw(d)) { | |
1492 | if (s > start) { | |
1493 | fbcon_putcs(vc, start, s - start, | |
1494 | line, x); | |
1495 | x += s - start + 1; | |
1496 | start = s + 1; | |
1497 | } else { | |
1498 | x++; | |
1499 | start++; | |
1500 | } | |
1501 | } | |
1502 | s++; | |
1503 | d++; | |
1504 | } while (s < le); | |
1505 | if (s > start) | |
1506 | fbcon_putcs(vc, start, s - start, line, x); | |
1507 | line++; | |
1508 | if (d == (u16 *) softback_end) | |
1509 | d = (u16 *) softback_buf; | |
1510 | if (d == (u16 *) softback_in) | |
1511 | d = (u16 *) vc->vc_origin; | |
1512 | if (s == (u16 *) softback_end) | |
1513 | s = (u16 *) softback_buf; | |
1514 | if (s == (u16 *) softback_in) | |
1515 | s = (u16 *) vc->vc_origin; | |
1516 | } | |
1517 | } | |
1518 | ||
1519 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
1520 | int line, int count, int dy) | |
1521 | { | |
1522 | unsigned short *s = (unsigned short *) | |
1523 | (vc->vc_origin + vc->vc_size_row * line); | |
1524 | ||
1525 | while (count--) { | |
1526 | unsigned short *start = s; | |
1527 | unsigned short *le = advance_row(s, 1); | |
1528 | unsigned short c; | |
1529 | int x = 0; | |
1530 | unsigned short attr = 1; | |
1531 | ||
1532 | do { | |
1533 | c = scr_readw(s); | |
1534 | if (attr != (c & 0xff00)) { | |
1535 | attr = c & 0xff00; | |
1536 | if (s > start) { | |
1537 | fbcon_putcs(vc, start, s - start, | |
1538 | dy, x); | |
1539 | x += s - start; | |
1540 | start = s; | |
1541 | } | |
1542 | } | |
1543 | console_conditional_schedule(); | |
1544 | s++; | |
1545 | } while (s < le); | |
1546 | if (s > start) | |
1547 | fbcon_putcs(vc, start, s - start, dy, x); | |
1548 | console_conditional_schedule(); | |
1549 | dy++; | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | static void fbcon_redraw(struct vc_data *vc, struct display *p, | |
1554 | int line, int count, int offset) | |
1555 | { | |
1556 | unsigned short *d = (unsigned short *) | |
1557 | (vc->vc_origin + vc->vc_size_row * line); | |
1558 | unsigned short *s = d + offset; | |
1559 | ||
1560 | while (count--) { | |
1561 | unsigned short *start = s; | |
1562 | unsigned short *le = advance_row(s, 1); | |
1563 | unsigned short c; | |
1564 | int x = 0; | |
1565 | unsigned short attr = 1; | |
1566 | ||
1567 | do { | |
1568 | c = scr_readw(s); | |
1569 | if (attr != (c & 0xff00)) { | |
1570 | attr = c & 0xff00; | |
1571 | if (s > start) { | |
1572 | fbcon_putcs(vc, start, s - start, | |
1573 | line, x); | |
1574 | x += s - start; | |
1575 | start = s; | |
1576 | } | |
1577 | } | |
1578 | if (c == scr_readw(d)) { | |
1579 | if (s > start) { | |
1580 | fbcon_putcs(vc, start, s - start, | |
1581 | line, x); | |
1582 | x += s - start + 1; | |
1583 | start = s + 1; | |
1584 | } else { | |
1585 | x++; | |
1586 | start++; | |
1587 | } | |
1588 | } | |
1589 | scr_writew(c, d); | |
1590 | console_conditional_schedule(); | |
1591 | s++; | |
1592 | d++; | |
1593 | } while (s < le); | |
1594 | if (s > start) | |
1595 | fbcon_putcs(vc, start, s - start, line, x); | |
1596 | console_conditional_schedule(); | |
1597 | if (offset > 0) | |
1598 | line++; | |
1599 | else { | |
1600 | line--; | |
1601 | /* NOTE: We subtract two lines from these pointers */ | |
1602 | s -= vc->vc_size_row; | |
1603 | d -= vc->vc_size_row; | |
1604 | } | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | static inline void fbcon_softback_note(struct vc_data *vc, int t, | |
1609 | int count) | |
1610 | { | |
1611 | unsigned short *p; | |
1612 | ||
1613 | if (vc->vc_num != fg_console) | |
1614 | return; | |
1615 | p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); | |
1616 | ||
1617 | while (count) { | |
1618 | scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); | |
1619 | count--; | |
1620 | p = advance_row(p, 1); | |
1621 | softback_in += vc->vc_size_row; | |
1622 | if (softback_in == softback_end) | |
1623 | softback_in = softback_buf; | |
1624 | if (softback_in == softback_top) { | |
1625 | softback_top += vc->vc_size_row; | |
1626 | if (softback_top == softback_end) | |
1627 | softback_top = softback_buf; | |
1628 | } | |
1629 | } | |
1630 | softback_curr = softback_in; | |
1631 | } | |
1632 | ||
1633 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
1634 | int count) | |
1635 | { | |
1636 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1637 | struct display *p = &fb_display[vc->vc_num]; | |
1638 | struct fbcon_ops *ops = info->fbcon_par; | |
1639 | int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; | |
1640 | ||
1641 | if (fbcon_is_inactive(vc, info)) | |
1642 | return -EINVAL; | |
1643 | ||
1644 | fbcon_cursor(vc, CM_ERASE); | |
1645 | ||
1646 | /* | |
1647 | * ++Geert: Only use ywrap/ypan if the console is in text mode | |
1648 | * ++Andrew: Only use ypan on hardware text mode when scrolling the | |
1649 | * whole screen (prevents flicker). | |
1650 | */ | |
1651 | ||
1652 | switch (dir) { | |
1653 | case SM_UP: | |
1654 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1655 | count = vc->vc_rows; | |
1656 | if (softback_top) | |
1657 | fbcon_softback_note(vc, t, count); | |
1658 | if (logo_shown >= 0) | |
1659 | goto redraw_up; | |
1660 | switch (p->scrollmode) { | |
1661 | case SCROLL_MOVE: | |
1662 | ops->bmove(vc, info, t + count, 0, t, 0, | |
1663 | b - t - count, vc->vc_cols); | |
1664 | ops->clear(vc, info, b - count, 0, count, | |
1665 | vc->vc_cols); | |
1666 | break; | |
1667 | ||
1668 | case SCROLL_WRAP_MOVE: | |
1669 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1670 | if (t > 0) | |
1671 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1672 | vc->vc_cols); | |
1673 | ywrap_up(vc, count); | |
1674 | if (vc->vc_rows - b > 0) | |
1675 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1676 | vc->vc_rows - b, | |
1677 | vc->vc_cols); | |
1678 | } else if (info->flags & FBINFO_READS_FAST) | |
1679 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1680 | b - t - count, vc->vc_cols); | |
1681 | else | |
1682 | goto redraw_up; | |
1683 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1684 | break; | |
1685 | ||
1686 | case SCROLL_PAN_REDRAW: | |
1687 | if ((p->yscroll + count <= | |
1688 | 2 * (p->vrows - vc->vc_rows)) | |
1689 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1690 | || (scroll_partial | |
1691 | && (b - t - count > | |
1692 | 3 * vc->vc_rows >> 2)))) { | |
1693 | if (t > 0) | |
1694 | fbcon_redraw_move(vc, p, 0, t, count); | |
1695 | ypan_up_redraw(vc, t, count); | |
1696 | if (vc->vc_rows - b > 0) | |
1697 | fbcon_redraw_move(vc, p, b - count, | |
1698 | vc->vc_rows - b, b); | |
1699 | } else | |
1700 | fbcon_redraw_move(vc, p, t + count, b - t - count, t); | |
1701 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1702 | break; | |
1703 | ||
1704 | case SCROLL_PAN_MOVE: | |
1705 | if ((p->yscroll + count <= | |
1706 | 2 * (p->vrows - vc->vc_rows)) | |
1707 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1708 | || (scroll_partial | |
1709 | && (b - t - count > | |
1710 | 3 * vc->vc_rows >> 2)))) { | |
1711 | if (t > 0) | |
1712 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1713 | vc->vc_cols); | |
1714 | ypan_up(vc, count); | |
1715 | if (vc->vc_rows - b > 0) | |
1716 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1717 | vc->vc_rows - b, | |
1718 | vc->vc_cols); | |
1719 | } else if (info->flags & FBINFO_READS_FAST) | |
1720 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1721 | b - t - count, vc->vc_cols); | |
1722 | else | |
1723 | goto redraw_up; | |
1724 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1725 | break; | |
1726 | ||
1727 | case SCROLL_REDRAW: | |
1728 | redraw_up: | |
1729 | fbcon_redraw(vc, p, t, b - t - count, | |
1730 | count * vc->vc_cols); | |
1731 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1732 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1733 | vc->vc_size_row * | |
1734 | (b - count)), | |
1735 | vc->vc_video_erase_char, | |
1736 | vc->vc_size_row * count); | |
1737 | return 1; | |
1738 | } | |
1739 | break; | |
1740 | ||
1741 | case SM_DOWN: | |
1742 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1743 | count = vc->vc_rows; | |
e703ecc3 JB |
1744 | if (logo_shown >= 0) |
1745 | goto redraw_down; | |
1da177e4 LT |
1746 | switch (p->scrollmode) { |
1747 | case SCROLL_MOVE: | |
1748 | ops->bmove(vc, info, t, 0, t + count, 0, | |
1749 | b - t - count, vc->vc_cols); | |
1750 | ops->clear(vc, info, t, 0, count, vc->vc_cols); | |
1751 | break; | |
1752 | ||
1753 | case SCROLL_WRAP_MOVE: | |
1754 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1755 | if (vc->vc_rows - b > 0) | |
1756 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1757 | vc->vc_rows - b, | |
1758 | vc->vc_cols); | |
1759 | ywrap_down(vc, count); | |
1760 | if (t > 0) | |
1761 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1762 | vc->vc_cols); | |
1763 | } else if (info->flags & FBINFO_READS_FAST) | |
1764 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1765 | b - t - count, vc->vc_cols); | |
1766 | else | |
1767 | goto redraw_down; | |
1768 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1769 | break; | |
1770 | ||
1771 | case SCROLL_PAN_MOVE: | |
1772 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1773 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1774 | || (scroll_partial | |
1775 | && (b - t - count > | |
1776 | 3 * vc->vc_rows >> 2)))) { | |
1777 | if (vc->vc_rows - b > 0) | |
1778 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1779 | vc->vc_rows - b, | |
1780 | vc->vc_cols); | |
1781 | ypan_down(vc, count); | |
1782 | if (t > 0) | |
1783 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1784 | vc->vc_cols); | |
1785 | } else if (info->flags & FBINFO_READS_FAST) | |
1786 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1787 | b - t - count, vc->vc_cols); | |
1788 | else | |
1789 | goto redraw_down; | |
1790 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1791 | break; | |
1792 | ||
1793 | case SCROLL_PAN_REDRAW: | |
1794 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1795 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1796 | || (scroll_partial | |
1797 | && (b - t - count > | |
1798 | 3 * vc->vc_rows >> 2)))) { | |
1799 | if (vc->vc_rows - b > 0) | |
1800 | fbcon_redraw_move(vc, p, b, vc->vc_rows - b, | |
1801 | b - count); | |
1802 | ypan_down_redraw(vc, t, count); | |
1803 | if (t > 0) | |
1804 | fbcon_redraw_move(vc, p, count, t, 0); | |
1805 | } else | |
1806 | fbcon_redraw_move(vc, p, t, b - t - count, t + count); | |
1807 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1808 | break; | |
1809 | ||
1810 | case SCROLL_REDRAW: | |
1811 | redraw_down: | |
1812 | fbcon_redraw(vc, p, b - 1, b - t - count, | |
1813 | -count * vc->vc_cols); | |
1814 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1815 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1816 | vc->vc_size_row * | |
1817 | t), | |
1818 | vc->vc_video_erase_char, | |
1819 | vc->vc_size_row * count); | |
1820 | return 1; | |
1821 | } | |
1822 | } | |
1823 | return 0; | |
1824 | } | |
1825 | ||
1826 | ||
1827 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
1828 | int height, int width) | |
1829 | { | |
1830 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1831 | struct display *p = &fb_display[vc->vc_num]; | |
1832 | ||
1833 | if (fbcon_is_inactive(vc, info)) | |
1834 | return; | |
1835 | ||
1836 | if (!width || !height) | |
1837 | return; | |
1838 | ||
1839 | /* Split blits that cross physical y_wrap case. | |
1840 | * Pathological case involves 4 blits, better to use recursive | |
1841 | * code rather than unrolled case | |
1842 | * | |
1843 | * Recursive invocations don't need to erase the cursor over and | |
1844 | * over again, so we use fbcon_bmove_rec() | |
1845 | */ | |
1846 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width, | |
1847 | p->vrows - p->yscroll); | |
1848 | } | |
1849 | ||
1850 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
1851 | int dy, int dx, int height, int width, u_int y_break) | |
1852 | { | |
1853 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1854 | struct fbcon_ops *ops = info->fbcon_par; | |
1855 | u_int b; | |
1856 | ||
1857 | if (sy < y_break && sy + height > y_break) { | |
1858 | b = y_break - sy; | |
1859 | if (dy < sy) { /* Avoid trashing self */ | |
1860 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
1861 | y_break); | |
1862 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
1863 | height - b, width, y_break); | |
1864 | } else { | |
1865 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
1866 | height - b, width, y_break); | |
1867 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
1868 | y_break); | |
1869 | } | |
1870 | return; | |
1871 | } | |
1872 | ||
1873 | if (dy < y_break && dy + height > y_break) { | |
1874 | b = y_break - dy; | |
1875 | if (dy < sy) { /* Avoid trashing self */ | |
1876 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
1877 | y_break); | |
1878 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
1879 | height - b, width, y_break); | |
1880 | } else { | |
1881 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
1882 | height - b, width, y_break); | |
1883 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
1884 | y_break); | |
1885 | } | |
1886 | return; | |
1887 | } | |
1888 | ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx, | |
1889 | height, width); | |
1890 | } | |
1891 | ||
e4fc2761 AD |
1892 | static __inline__ void updatescrollmode(struct display *p, |
1893 | struct fb_info *info, | |
1da177e4 LT |
1894 | struct vc_data *vc) |
1895 | { | |
e4fc2761 | 1896 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1897 | int fh = vc->vc_font.height; |
1898 | int cap = info->flags; | |
e4fc2761 AD |
1899 | u16 t = 0; |
1900 | int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep, | |
1901 | info->fix.xpanstep); | |
1902 | int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t); | |
1903 | int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1904 | int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual, | |
1905 | info->var.xres_virtual); | |
1906 | int good_pan = (cap & FBINFO_HWACCEL_YPAN) && | |
1907 | divides(ypan, vc->vc_font.height) && vyres > yres; | |
1908 | int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) && | |
1909 | divides(ywrap, vc->vc_font.height) && | |
1910 | divides(vc->vc_font.height, vyres); | |
1da177e4 | 1911 | int reading_fast = cap & FBINFO_READS_FAST; |
e4fc2761 AD |
1912 | int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) && |
1913 | !(cap & FBINFO_HWACCEL_DISABLED); | |
1914 | int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) && | |
1915 | !(cap & FBINFO_HWACCEL_DISABLED); | |
1916 | ||
1917 | p->vrows = vyres/fh; | |
1918 | if (yres > (fh * (vc->vc_rows + 1))) | |
1919 | p->vrows -= (yres - (fh * vc->vc_rows)) / fh; | |
1920 | if ((yres % fh) && (vyres % fh < yres % fh)) | |
1da177e4 LT |
1921 | p->vrows--; |
1922 | ||
1923 | if (good_wrap || good_pan) { | |
1924 | if (reading_fast || fast_copyarea) | |
e4fc2761 AD |
1925 | p->scrollmode = good_wrap ? |
1926 | SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE; | |
1da177e4 LT |
1927 | else |
1928 | p->scrollmode = good_wrap ? SCROLL_REDRAW : | |
1929 | SCROLL_PAN_REDRAW; | |
1930 | } else { | |
1931 | if (reading_fast || (fast_copyarea && !fast_imageblit)) | |
1932 | p->scrollmode = SCROLL_MOVE; | |
1933 | else | |
1934 | p->scrollmode = SCROLL_REDRAW; | |
1935 | } | |
1936 | } | |
1937 | ||
1938 | static int fbcon_resize(struct vc_data *vc, unsigned int width, | |
1939 | unsigned int height) | |
1940 | { | |
1941 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1942 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1943 | struct display *p = &fb_display[vc->vc_num]; |
1944 | struct fb_var_screeninfo var = info->var; | |
e4fc2761 AD |
1945 | int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; |
1946 | ||
1947 | virt_w = FBCON_SWAP(ops->rotate, width, height); | |
1948 | virt_h = FBCON_SWAP(ops->rotate, height, width); | |
1949 | virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, | |
1950 | vc->vc_font.height); | |
1951 | virt_fh = FBCON_SWAP(ops->rotate, vc->vc_font.height, | |
1952 | vc->vc_font.width); | |
1953 | var.xres = virt_w * virt_fw; | |
1954 | var.yres = virt_h * virt_fh; | |
1da177e4 LT |
1955 | x_diff = info->var.xres - var.xres; |
1956 | y_diff = info->var.yres - var.yres; | |
e4fc2761 AD |
1957 | if (x_diff < 0 || x_diff > virt_fw || |
1958 | y_diff < 0 || y_diff > virt_fh) { | |
1da177e4 LT |
1959 | struct fb_videomode *mode; |
1960 | ||
1961 | DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); | |
1962 | mode = fb_find_best_mode(&var, &info->modelist); | |
1963 | if (mode == NULL) | |
1964 | return -EINVAL; | |
3084a895 | 1965 | display_to_var(&var, p); |
1da177e4 | 1966 | fb_videomode_to_var(&var, mode); |
3084a895 | 1967 | |
e4fc2761 | 1968 | if (virt_w > var.xres/virt_fw || virt_h > var.yres/virt_fh) |
1da177e4 | 1969 | return -EINVAL; |
1da177e4 LT |
1970 | |
1971 | DPRINTK("resize now %ix%i\n", var.xres, var.yres); | |
1972 | if (CON_IS_VISIBLE(vc)) { | |
1973 | var.activate = FB_ACTIVATE_NOW | | |
1974 | FB_ACTIVATE_FORCE; | |
1975 | fb_set_var(info, &var); | |
1976 | } | |
1977 | var_to_display(p, &info->var, info); | |
e4fc2761 | 1978 | ops->var = info->var; |
1da177e4 LT |
1979 | } |
1980 | updatescrollmode(p, info, vc); | |
1981 | return 0; | |
1982 | } | |
1983 | ||
1984 | static int fbcon_switch(struct vc_data *vc) | |
1985 | { | |
88fb2c6e | 1986 | struct fb_info *info, *old_info = NULL; |
e4fc2761 | 1987 | struct fbcon_ops *ops; |
1da177e4 LT |
1988 | struct display *p = &fb_display[vc->vc_num]; |
1989 | struct fb_var_screeninfo var; | |
1990 | int i, prev_console; | |
1991 | ||
1992 | info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1993 | ops = info->fbcon_par; |
1da177e4 LT |
1994 | |
1995 | if (softback_top) { | |
1da177e4 LT |
1996 | if (softback_lines) |
1997 | fbcon_set_origin(vc); | |
1998 | softback_top = softback_curr = softback_in = softback_buf; | |
1999 | softback_lines = 0; | |
4d9c5b6e | 2000 | fbcon_update_softback(vc); |
1da177e4 LT |
2001 | } |
2002 | ||
2003 | if (logo_shown >= 0) { | |
2004 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2005 | ||
2006 | if (conp2->vc_top == logo_lines | |
2007 | && conp2->vc_bottom == conp2->vc_rows) | |
2008 | conp2->vc_top = 0; | |
2009 | logo_shown = FBCON_LOGO_CANSHOW; | |
2010 | } | |
2011 | ||
e4fc2761 | 2012 | prev_console = ops->currcon; |
88fb2c6e AD |
2013 | if (prev_console != -1) |
2014 | old_info = registered_fb[con2fb_map[prev_console]]; | |
1da177e4 LT |
2015 | /* |
2016 | * FIXME: If we have multiple fbdev's loaded, we need to | |
2017 | * update all info->currcon. Perhaps, we can place this | |
2018 | * in a centralized structure, but this might break some | |
2019 | * drivers. | |
2020 | * | |
2021 | * info->currcon = vc->vc_num; | |
2022 | */ | |
2023 | for (i = 0; i < FB_MAX; i++) { | |
2024 | if (registered_fb[i] != NULL && registered_fb[i]->fbcon_par) { | |
e4fc2761 | 2025 | struct fbcon_ops *o = registered_fb[i]->fbcon_par; |
1da177e4 | 2026 | |
e4fc2761 | 2027 | o->currcon = vc->vc_num; |
1da177e4 LT |
2028 | } |
2029 | } | |
2030 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); | |
2031 | display_to_var(&var, p); | |
2032 | var.activate = FB_ACTIVATE_NOW; | |
2033 | ||
2034 | /* | |
2035 | * make sure we don't unnecessarily trip the memcmp() | |
2036 | * in fb_set_var() | |
2037 | */ | |
2038 | info->var.activate = var.activate; | |
e4fc2761 AD |
2039 | var.yoffset = info->var.yoffset; |
2040 | var.xoffset = info->var.xoffset; | |
2041 | var.vmode = info->var.vmode; | |
1da177e4 | 2042 | fb_set_var(info, &var); |
e4fc2761 | 2043 | ops->var = info->var; |
1da177e4 | 2044 | |
88fb2c6e AD |
2045 | if (old_info != NULL && old_info != info) { |
2046 | if (info->fbops->fb_set_par) | |
2047 | info->fbops->fb_set_par(info); | |
2048 | fbcon_del_cursor_timer(old_info); | |
2049 | fbcon_add_cursor_timer(info); | |
2050 | } | |
1da177e4 LT |
2051 | |
2052 | set_blitting_type(vc, info, p); | |
e4fc2761 AD |
2053 | ops->cursor_reset = 1; |
2054 | ||
2055 | if (ops->rotate_font && ops->rotate_font(info, vc, p)) { | |
2056 | ops->rotate = FB_ROTATE_UR; | |
2057 | set_blitting_type(vc, info, p); | |
2058 | } | |
1da177e4 | 2059 | |
b8c90945 | 2060 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
2061 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
2062 | updatescrollmode(p, info, vc); | |
2063 | ||
2064 | switch (p->scrollmode) { | |
2065 | case SCROLL_WRAP_MOVE: | |
2066 | scrollback_phys_max = p->vrows - vc->vc_rows; | |
2067 | break; | |
2068 | case SCROLL_PAN_MOVE: | |
2069 | case SCROLL_PAN_REDRAW: | |
2070 | scrollback_phys_max = p->vrows - 2 * vc->vc_rows; | |
2071 | if (scrollback_phys_max < 0) | |
2072 | scrollback_phys_max = 0; | |
2073 | break; | |
2074 | default: | |
2075 | scrollback_phys_max = 0; | |
2076 | break; | |
2077 | } | |
e4fc2761 | 2078 | |
1da177e4 LT |
2079 | scrollback_max = 0; |
2080 | scrollback_current = 0; | |
e4fc2761 AD |
2081 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; |
2082 | ops->update_start(info); | |
1da177e4 LT |
2083 | fbcon_set_palette(vc, color_table); |
2084 | fbcon_clear_margins(vc, 0); | |
2085 | ||
2086 | if (logo_shown == FBCON_LOGO_DRAW) { | |
2087 | ||
2088 | logo_shown = fg_console; | |
2089 | /* This is protected above by initmem_freed */ | |
9c44e5f6 | 2090 | fb_show_logo(info, ops->rotate); |
1da177e4 LT |
2091 | update_region(vc, |
2092 | vc->vc_origin + vc->vc_size_row * vc->vc_top, | |
2093 | vc->vc_size_row * (vc->vc_bottom - | |
2094 | vc->vc_top) / 2); | |
2095 | return 0; | |
2096 | } | |
2097 | return 1; | |
2098 | } | |
2099 | ||
2100 | static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, | |
2101 | int blank) | |
2102 | { | |
2103 | if (blank) { | |
2104 | unsigned short charmask = vc->vc_hi_font_mask ? | |
2105 | 0x1ff : 0xff; | |
2106 | unsigned short oldc; | |
2107 | ||
2108 | oldc = vc->vc_video_erase_char; | |
2109 | vc->vc_video_erase_char &= charmask; | |
2110 | fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); | |
2111 | vc->vc_video_erase_char = oldc; | |
2112 | } | |
2113 | } | |
2114 | ||
2115 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) | |
2116 | { | |
2117 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2118 | struct fbcon_ops *ops = info->fbcon_par; | |
2119 | ||
2120 | if (mode_switch) { | |
2121 | struct fb_var_screeninfo var = info->var; | |
2122 | ||
2123 | ops->graphics = 1; | |
2124 | ||
2125 | if (!blank) { | |
2126 | var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; | |
2127 | fb_set_var(info, &var); | |
2128 | ops->graphics = 0; | |
e4fc2761 | 2129 | ops->var = info->var; |
1da177e4 LT |
2130 | } |
2131 | } | |
2132 | ||
2133 | if (!fbcon_is_inactive(vc, info)) { | |
2134 | if (ops->blank_state != blank) { | |
2135 | ops->blank_state = blank; | |
2136 | fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); | |
2137 | ops->cursor_flash = (!blank); | |
2138 | ||
2139 | if (fb_blank(info, blank)) | |
2140 | fbcon_generic_blank(vc, info, blank); | |
2141 | } | |
2142 | ||
88fb2c6e AD |
2143 | if (!blank) |
2144 | update_screen(vc); | |
2145 | } | |
2146 | ||
2147 | if (!blank) | |
2148 | fbcon_add_cursor_timer(info); | |
2149 | else | |
2150 | fbcon_del_cursor_timer(info); | |
1da177e4 | 2151 | |
88fb2c6e | 2152 | return 0; |
1da177e4 LT |
2153 | } |
2154 | ||
2155 | static void fbcon_free_font(struct display *p) | |
2156 | { | |
2157 | if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0)) | |
2158 | kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int)); | |
2159 | p->fontdata = NULL; | |
2160 | p->userfont = 0; | |
2161 | } | |
2162 | ||
2163 | static int fbcon_get_font(struct vc_data *vc, struct console_font *font) | |
2164 | { | |
2165 | u8 *fontdata = vc->vc_font.data; | |
2166 | u8 *data = font->data; | |
2167 | int i, j; | |
2168 | ||
2169 | font->width = vc->vc_font.width; | |
2170 | font->height = vc->vc_font.height; | |
2171 | font->charcount = vc->vc_hi_font_mask ? 512 : 256; | |
2172 | if (!font->data) | |
2173 | return 0; | |
2174 | ||
2175 | if (font->width <= 8) { | |
2176 | j = vc->vc_font.height; | |
2177 | for (i = 0; i < font->charcount; i++) { | |
2178 | memcpy(data, fontdata, j); | |
2179 | memset(data + j, 0, 32 - j); | |
2180 | data += 32; | |
2181 | fontdata += j; | |
2182 | } | |
2183 | } else if (font->width <= 16) { | |
2184 | j = vc->vc_font.height * 2; | |
2185 | for (i = 0; i < font->charcount; i++) { | |
2186 | memcpy(data, fontdata, j); | |
2187 | memset(data + j, 0, 64 - j); | |
2188 | data += 64; | |
2189 | fontdata += j; | |
2190 | } | |
2191 | } else if (font->width <= 24) { | |
2192 | for (i = 0; i < font->charcount; i++) { | |
2193 | for (j = 0; j < vc->vc_font.height; j++) { | |
2194 | *data++ = fontdata[0]; | |
2195 | *data++ = fontdata[1]; | |
2196 | *data++ = fontdata[2]; | |
2197 | fontdata += sizeof(u32); | |
2198 | } | |
2199 | memset(data, 0, 3 * (32 - j)); | |
2200 | data += 3 * (32 - j); | |
2201 | } | |
2202 | } else { | |
2203 | j = vc->vc_font.height * 4; | |
2204 | for (i = 0; i < font->charcount; i++) { | |
2205 | memcpy(data, fontdata, j); | |
2206 | memset(data + j, 0, 128 - j); | |
2207 | data += 128; | |
2208 | fontdata += j; | |
2209 | } | |
2210 | } | |
2211 | return 0; | |
2212 | } | |
2213 | ||
2214 | static int fbcon_do_set_font(struct vc_data *vc, int w, int h, | |
2f4516db | 2215 | const u8 * data, int userfont) |
1da177e4 LT |
2216 | { |
2217 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2218 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2219 | struct display *p = &fb_display[vc->vc_num]; |
2220 | int resize; | |
2221 | int cnt; | |
2222 | char *old_data = NULL; | |
2223 | ||
2224 | if (CON_IS_VISIBLE(vc) && softback_lines) | |
2225 | fbcon_set_origin(vc); | |
2226 | ||
2227 | resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); | |
2228 | if (p->userfont) | |
2229 | old_data = vc->vc_font.data; | |
2230 | if (userfont) | |
2231 | cnt = FNTCHARCNT(data); | |
2232 | else | |
2233 | cnt = 256; | |
2f4516db | 2234 | vc->vc_font.data = (void *)(p->fontdata = data); |
1da177e4 LT |
2235 | if ((p->userfont = userfont)) |
2236 | REFCOUNT(data)++; | |
2237 | vc->vc_font.width = w; | |
2238 | vc->vc_font.height = h; | |
2239 | if (vc->vc_hi_font_mask && cnt == 256) { | |
2240 | vc->vc_hi_font_mask = 0; | |
2241 | if (vc->vc_can_do_color) { | |
2242 | vc->vc_complement_mask >>= 1; | |
2243 | vc->vc_s_complement_mask >>= 1; | |
2244 | } | |
2245 | ||
2246 | /* ++Edmund: reorder the attribute bits */ | |
2247 | if (vc->vc_can_do_color) { | |
2248 | unsigned short *cp = | |
2249 | (unsigned short *) vc->vc_origin; | |
2250 | int count = vc->vc_screenbuf_size / 2; | |
2251 | unsigned short c; | |
2252 | for (; count > 0; count--, cp++) { | |
2253 | c = scr_readw(cp); | |
2254 | scr_writew(((c & 0xfe00) >> 1) | | |
2255 | (c & 0xff), cp); | |
2256 | } | |
2257 | c = vc->vc_video_erase_char; | |
2258 | vc->vc_video_erase_char = | |
2259 | ((c & 0xfe00) >> 1) | (c & 0xff); | |
2260 | vc->vc_attr >>= 1; | |
2261 | } | |
2262 | } else if (!vc->vc_hi_font_mask && cnt == 512) { | |
2263 | vc->vc_hi_font_mask = 0x100; | |
2264 | if (vc->vc_can_do_color) { | |
2265 | vc->vc_complement_mask <<= 1; | |
2266 | vc->vc_s_complement_mask <<= 1; | |
2267 | } | |
2268 | ||
2269 | /* ++Edmund: reorder the attribute bits */ | |
2270 | { | |
2271 | unsigned short *cp = | |
2272 | (unsigned short *) vc->vc_origin; | |
2273 | int count = vc->vc_screenbuf_size / 2; | |
2274 | unsigned short c; | |
2275 | for (; count > 0; count--, cp++) { | |
2276 | unsigned short newc; | |
2277 | c = scr_readw(cp); | |
2278 | if (vc->vc_can_do_color) | |
2279 | newc = | |
2280 | ((c & 0xff00) << 1) | (c & | |
2281 | 0xff); | |
2282 | else | |
2283 | newc = c & ~0x100; | |
2284 | scr_writew(newc, cp); | |
2285 | } | |
2286 | c = vc->vc_video_erase_char; | |
2287 | if (vc->vc_can_do_color) { | |
2288 | vc->vc_video_erase_char = | |
2289 | ((c & 0xff00) << 1) | (c & 0xff); | |
2290 | vc->vc_attr <<= 1; | |
2291 | } else | |
2292 | vc->vc_video_erase_char = c & ~0x100; | |
2293 | } | |
2294 | ||
2295 | } | |
2296 | ||
2297 | if (resize) { | |
e4fc2761 AD |
2298 | int cols, rows; |
2299 | ||
2300 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); | |
2301 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2302 | cols /= w; | |
2303 | rows /= h; | |
2304 | vc_resize(vc, cols, rows); | |
4d9c5b6e AD |
2305 | if (CON_IS_VISIBLE(vc) && softback_buf) |
2306 | fbcon_update_softback(vc); | |
1da177e4 LT |
2307 | } else if (CON_IS_VISIBLE(vc) |
2308 | && vc->vc_mode == KD_TEXT) { | |
2309 | fbcon_clear_margins(vc, 0); | |
2310 | update_screen(vc); | |
2311 | } | |
2312 | ||
2313 | if (old_data && (--REFCOUNT(old_data) == 0)) | |
2314 | kfree(old_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2315 | return 0; | |
2316 | } | |
2317 | ||
2318 | static int fbcon_copy_font(struct vc_data *vc, int con) | |
2319 | { | |
2320 | struct display *od = &fb_display[con]; | |
2321 | struct console_font *f = &vc->vc_font; | |
2322 | ||
2323 | if (od->fontdata == f->data) | |
2324 | return 0; /* already the same font... */ | |
2325 | return fbcon_do_set_font(vc, f->width, f->height, od->fontdata, od->userfont); | |
2326 | } | |
2327 | ||
2328 | /* | |
2329 | * User asked to set font; we are guaranteed that | |
2330 | * a) width and height are in range 1..32 | |
2331 | * b) charcount does not exceed 512 | |
2332 | * but lets not assume that, since someone might someday want to use larger | |
2333 | * fonts. And charcount of 512 is small for unicode support. | |
2334 | * | |
2335 | * However, user space gives the font in 32 rows , regardless of | |
2336 | * actual font height. So a new API is needed if support for larger fonts | |
2337 | * is ever implemented. | |
2338 | */ | |
2339 | ||
2340 | static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) | |
2341 | { | |
2342 | unsigned charcount = font->charcount; | |
2343 | int w = font->width; | |
2344 | int h = font->height; | |
2345 | int size; | |
2346 | int i, csum; | |
2347 | u8 *new_data, *data = font->data; | |
2348 | int pitch = (font->width+7) >> 3; | |
2349 | ||
2350 | /* Is there a reason why fbconsole couldn't handle any charcount >256? | |
2351 | * If not this check should be changed to charcount < 256 */ | |
2352 | if (charcount != 256 && charcount != 512) | |
2353 | return -EINVAL; | |
2354 | ||
2355 | size = h * pitch * charcount; | |
2356 | ||
2357 | new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); | |
2358 | ||
2359 | if (!new_data) | |
2360 | return -ENOMEM; | |
2361 | ||
2362 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
2363 | FNTSIZE(new_data) = size; | |
2364 | FNTCHARCNT(new_data) = charcount; | |
2365 | REFCOUNT(new_data) = 0; /* usage counter */ | |
2366 | for (i=0; i< charcount; i++) { | |
2367 | memcpy(new_data + i*h*pitch, data + i*32*pitch, h*pitch); | |
2368 | } | |
2369 | ||
2370 | /* Since linux has a nice crc32 function use it for counting font | |
2371 | * checksums. */ | |
2372 | csum = crc32(0, new_data, size); | |
2373 | ||
2374 | FNTSUM(new_data) = csum; | |
2375 | /* Check if the same font is on some other console already */ | |
2376 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
2377 | struct vc_data *tmp = vc_cons[i].d; | |
2378 | ||
2379 | if (fb_display[i].userfont && | |
2380 | fb_display[i].fontdata && | |
2381 | FNTSUM(fb_display[i].fontdata) == csum && | |
2382 | FNTSIZE(fb_display[i].fontdata) == size && | |
2383 | tmp->vc_font.width == w && | |
2384 | !memcmp(fb_display[i].fontdata, new_data, size)) { | |
2385 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2f4516db | 2386 | new_data = (u8 *)fb_display[i].fontdata; |
1da177e4 LT |
2387 | break; |
2388 | } | |
2389 | } | |
2390 | return fbcon_do_set_font(vc, font->width, font->height, new_data, 1); | |
2391 | } | |
2392 | ||
2393 | static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name) | |
2394 | { | |
2395 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2f4516db | 2396 | const struct font_desc *f; |
1da177e4 LT |
2397 | |
2398 | if (!name) | |
2399 | f = get_default_font(info->var.xres, info->var.yres); | |
2400 | else if (!(f = find_font(name))) | |
2401 | return -ENOENT; | |
2402 | ||
2403 | font->width = f->width; | |
2404 | font->height = f->height; | |
2405 | return fbcon_do_set_font(vc, f->width, f->height, f->data, 0); | |
2406 | } | |
2407 | ||
2408 | static u16 palette_red[16]; | |
2409 | static u16 palette_green[16]; | |
2410 | static u16 palette_blue[16]; | |
2411 | ||
2412 | static struct fb_cmap palette_cmap = { | |
2413 | 0, 16, palette_red, palette_green, palette_blue, NULL | |
2414 | }; | |
2415 | ||
2416 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table) | |
2417 | { | |
2418 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2419 | int i, j, k, depth; | |
2420 | u8 val; | |
2421 | ||
2422 | if (fbcon_is_inactive(vc, info)) | |
2423 | return -EINVAL; | |
2424 | ||
2425 | if (!CON_IS_VISIBLE(vc)) | |
2426 | return 0; | |
2427 | ||
b8c90945 | 2428 | depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
2429 | if (depth > 3) { |
2430 | for (i = j = 0; i < 16; i++) { | |
2431 | k = table[i]; | |
2432 | val = vc->vc_palette[j++]; | |
2433 | palette_red[k] = (val << 8) | val; | |
2434 | val = vc->vc_palette[j++]; | |
2435 | palette_green[k] = (val << 8) | val; | |
2436 | val = vc->vc_palette[j++]; | |
2437 | palette_blue[k] = (val << 8) | val; | |
2438 | } | |
2439 | palette_cmap.len = 16; | |
2440 | palette_cmap.start = 0; | |
2441 | /* | |
2442 | * If framebuffer is capable of less than 16 colors, | |
2443 | * use default palette of fbcon. | |
2444 | */ | |
2445 | } else | |
2446 | fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); | |
2447 | ||
2448 | return fb_set_cmap(&palette_cmap, info); | |
2449 | } | |
2450 | ||
2451 | static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) | |
2452 | { | |
2453 | unsigned long p; | |
2454 | int line; | |
2455 | ||
2456 | if (vc->vc_num != fg_console || !softback_lines) | |
2457 | return (u16 *) (vc->vc_origin + offset); | |
2458 | line = offset / vc->vc_size_row; | |
2459 | if (line >= softback_lines) | |
2460 | return (u16 *) (vc->vc_origin + offset - | |
2461 | softback_lines * vc->vc_size_row); | |
2462 | p = softback_curr + offset; | |
2463 | if (p >= softback_end) | |
2464 | p += softback_buf - softback_end; | |
2465 | return (u16 *) p; | |
2466 | } | |
2467 | ||
2468 | static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, | |
2469 | int *px, int *py) | |
2470 | { | |
2471 | unsigned long ret; | |
2472 | int x, y; | |
2473 | ||
2474 | if (pos >= vc->vc_origin && pos < vc->vc_scr_end) { | |
2475 | unsigned long offset = (pos - vc->vc_origin) / 2; | |
2476 | ||
2477 | x = offset % vc->vc_cols; | |
2478 | y = offset / vc->vc_cols; | |
2479 | if (vc->vc_num == fg_console) | |
2480 | y += softback_lines; | |
2481 | ret = pos + (vc->vc_cols - x) * 2; | |
2482 | } else if (vc->vc_num == fg_console && softback_lines) { | |
2483 | unsigned long offset = pos - softback_curr; | |
2484 | ||
2485 | if (pos < softback_curr) | |
2486 | offset += softback_end - softback_buf; | |
2487 | offset /= 2; | |
2488 | x = offset % vc->vc_cols; | |
2489 | y = offset / vc->vc_cols; | |
2490 | ret = pos + (vc->vc_cols - x) * 2; | |
2491 | if (ret == softback_end) | |
2492 | ret = softback_buf; | |
2493 | if (ret == softback_in) | |
2494 | ret = vc->vc_origin; | |
2495 | } else { | |
2496 | /* Should not happen */ | |
2497 | x = y = 0; | |
2498 | ret = vc->vc_origin; | |
2499 | } | |
2500 | if (px) | |
2501 | *px = x; | |
2502 | if (py) | |
2503 | *py = y; | |
2504 | return ret; | |
2505 | } | |
2506 | ||
2507 | /* As we might be inside of softback, we may work with non-contiguous buffer, | |
2508 | that's why we have to use a separate routine. */ | |
2509 | static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) | |
2510 | { | |
2511 | while (cnt--) { | |
2512 | u16 a = scr_readw(p); | |
2513 | if (!vc->vc_can_do_color) | |
2514 | a ^= 0x0800; | |
2515 | else if (vc->vc_hi_font_mask == 0x100) | |
2516 | a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | | |
2517 | (((a) & 0x0e00) << 4); | |
2518 | else | |
2519 | a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | | |
2520 | (((a) & 0x0700) << 4); | |
2521 | scr_writew(a, p++); | |
2522 | if (p == (u16 *) softback_end) | |
2523 | p = (u16 *) softback_buf; | |
2524 | if (p == (u16 *) softback_in) | |
2525 | p = (u16 *) vc->vc_origin; | |
2526 | } | |
2527 | } | |
2528 | ||
2529 | static int fbcon_scrolldelta(struct vc_data *vc, int lines) | |
2530 | { | |
2531 | struct fb_info *info = registered_fb[con2fb_map[fg_console]]; | |
e4fc2761 | 2532 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2533 | struct display *p = &fb_display[fg_console]; |
2534 | int offset, limit, scrollback_old; | |
2535 | ||
2536 | if (softback_top) { | |
2537 | if (vc->vc_num != fg_console) | |
2538 | return 0; | |
2539 | if (vc->vc_mode != KD_TEXT || !lines) | |
2540 | return 0; | |
2541 | if (logo_shown >= 0) { | |
2542 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2543 | ||
2544 | if (conp2->vc_top == logo_lines | |
2545 | && conp2->vc_bottom == conp2->vc_rows) | |
2546 | conp2->vc_top = 0; | |
2547 | if (logo_shown == vc->vc_num) { | |
2548 | unsigned long p, q; | |
2549 | int i; | |
2550 | ||
2551 | p = softback_in; | |
2552 | q = vc->vc_origin + | |
2553 | logo_lines * vc->vc_size_row; | |
2554 | for (i = 0; i < logo_lines; i++) { | |
2555 | if (p == softback_top) | |
2556 | break; | |
2557 | if (p == softback_buf) | |
2558 | p = softback_end; | |
2559 | p -= vc->vc_size_row; | |
2560 | q -= vc->vc_size_row; | |
2561 | scr_memcpyw((u16 *) q, (u16 *) p, | |
2562 | vc->vc_size_row); | |
2563 | } | |
2564 | softback_in = p; | |
2565 | update_region(vc, vc->vc_origin, | |
2566 | logo_lines * vc->vc_cols); | |
2567 | } | |
2568 | logo_shown = FBCON_LOGO_CANSHOW; | |
2569 | } | |
2570 | fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); | |
2571 | fbcon_redraw_softback(vc, p, lines); | |
2572 | fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); | |
2573 | return 0; | |
2574 | } | |
2575 | ||
2576 | if (!scrollback_phys_max) | |
2577 | return -ENOSYS; | |
2578 | ||
2579 | scrollback_old = scrollback_current; | |
2580 | scrollback_current -= lines; | |
2581 | if (scrollback_current < 0) | |
2582 | scrollback_current = 0; | |
2583 | else if (scrollback_current > scrollback_max) | |
2584 | scrollback_current = scrollback_max; | |
2585 | if (scrollback_current == scrollback_old) | |
2586 | return 0; | |
2587 | ||
2588 | if (fbcon_is_inactive(vc, info)) | |
2589 | return 0; | |
2590 | ||
2591 | fbcon_cursor(vc, CM_ERASE); | |
2592 | ||
2593 | offset = p->yscroll - scrollback_current; | |
2594 | limit = p->vrows; | |
2595 | switch (p->scrollmode) { | |
2596 | case SCROLL_WRAP_MOVE: | |
2597 | info->var.vmode |= FB_VMODE_YWRAP; | |
2598 | break; | |
2599 | case SCROLL_PAN_MOVE: | |
2600 | case SCROLL_PAN_REDRAW: | |
2601 | limit -= vc->vc_rows; | |
2602 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
2603 | break; | |
2604 | } | |
2605 | if (offset < 0) | |
2606 | offset += limit; | |
2607 | else if (offset >= limit) | |
2608 | offset -= limit; | |
e4fc2761 AD |
2609 | |
2610 | ops->var.xoffset = 0; | |
2611 | ops->var.yoffset = offset * vc->vc_font.height; | |
2612 | ops->update_start(info); | |
2613 | ||
1da177e4 LT |
2614 | if (!scrollback_current) |
2615 | fbcon_cursor(vc, CM_DRAW); | |
2616 | return 0; | |
2617 | } | |
2618 | ||
2619 | static int fbcon_set_origin(struct vc_data *vc) | |
2620 | { | |
2621 | if (softback_lines) | |
2622 | fbcon_scrolldelta(vc, softback_lines); | |
2623 | return 0; | |
2624 | } | |
2625 | ||
2626 | static void fbcon_suspended(struct fb_info *info) | |
2627 | { | |
2628 | struct vc_data *vc = NULL; | |
2629 | struct fbcon_ops *ops = info->fbcon_par; | |
2630 | ||
2631 | if (!ops || ops->currcon < 0) | |
2632 | return; | |
2633 | vc = vc_cons[ops->currcon].d; | |
2634 | ||
2635 | /* Clear cursor, restore saved data */ | |
2636 | fbcon_cursor(vc, CM_ERASE); | |
2637 | } | |
2638 | ||
2639 | static void fbcon_resumed(struct fb_info *info) | |
2640 | { | |
2641 | struct vc_data *vc; | |
2642 | struct fbcon_ops *ops = info->fbcon_par; | |
2643 | ||
2644 | if (!ops || ops->currcon < 0) | |
2645 | return; | |
2646 | vc = vc_cons[ops->currcon].d; | |
2647 | ||
2648 | update_screen(vc); | |
2649 | } | |
2650 | ||
2651 | static void fbcon_modechanged(struct fb_info *info) | |
2652 | { | |
2653 | struct fbcon_ops *ops = info->fbcon_par; | |
2654 | struct vc_data *vc; | |
2655 | struct display *p; | |
2656 | int rows, cols; | |
2657 | ||
2658 | if (!ops || ops->currcon < 0) | |
2659 | return; | |
2660 | vc = vc_cons[ops->currcon].d; | |
e4fc2761 AD |
2661 | if (vc->vc_mode != KD_TEXT || |
2662 | registered_fb[con2fb_map[ops->currcon]] != info) | |
1da177e4 LT |
2663 | return; |
2664 | ||
2665 | p = &fb_display[vc->vc_num]; | |
e4fc2761 | 2666 | set_blitting_type(vc, info, p); |
1da177e4 LT |
2667 | |
2668 | if (CON_IS_VISIBLE(vc)) { | |
2669 | var_to_display(p, &info->var, info); | |
e4fc2761 AD |
2670 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2671 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2672 | cols /= vc->vc_font.width; | |
2673 | rows /= vc->vc_font.height; | |
1da177e4 LT |
2674 | vc_resize(vc, cols, rows); |
2675 | updatescrollmode(p, info, vc); | |
2676 | scrollback_max = 0; | |
2677 | scrollback_current = 0; | |
e4fc2761 AD |
2678 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; |
2679 | ops->update_start(info); | |
1da177e4 LT |
2680 | fbcon_set_palette(vc, color_table); |
2681 | update_screen(vc); | |
4d9c5b6e AD |
2682 | if (softback_buf) |
2683 | fbcon_update_softback(vc); | |
1da177e4 LT |
2684 | } |
2685 | } | |
2686 | ||
7726e9e1 AD |
2687 | static void fbcon_set_all_vcs(struct fb_info *info) |
2688 | { | |
2689 | struct fbcon_ops *ops = info->fbcon_par; | |
2690 | struct vc_data *vc; | |
2691 | struct display *p; | |
2692 | int i, rows, cols; | |
2693 | ||
2694 | if (!ops || ops->currcon < 0) | |
2695 | return; | |
2696 | ||
2697 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
2698 | vc = vc_cons[i].d; | |
2699 | if (!vc || vc->vc_mode != KD_TEXT || | |
2700 | registered_fb[con2fb_map[i]] != info) | |
2701 | continue; | |
2702 | ||
2703 | p = &fb_display[vc->vc_num]; | |
e4fc2761 | 2704 | set_blitting_type(vc, info, p); |
7726e9e1 | 2705 | var_to_display(p, &info->var, info); |
e4fc2761 AD |
2706 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2707 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2708 | cols /= vc->vc_font.width; | |
2709 | rows /= vc->vc_font.height; | |
7726e9e1 AD |
2710 | vc_resize(vc, cols, rows); |
2711 | ||
2712 | if (CON_IS_VISIBLE(vc)) { | |
2713 | updatescrollmode(p, info, vc); | |
2714 | scrollback_max = 0; | |
2715 | scrollback_current = 0; | |
e4fc2761 AD |
2716 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; |
2717 | ops->update_start(info); | |
7726e9e1 AD |
2718 | fbcon_set_palette(vc, color_table); |
2719 | update_screen(vc); | |
4d9c5b6e AD |
2720 | if (softback_buf) |
2721 | fbcon_update_softback(vc); | |
7726e9e1 AD |
2722 | } |
2723 | } | |
2724 | } | |
2725 | ||
1da177e4 LT |
2726 | static int fbcon_mode_deleted(struct fb_info *info, |
2727 | struct fb_videomode *mode) | |
2728 | { | |
2729 | struct fb_info *fb_info; | |
2730 | struct display *p; | |
2731 | int i, j, found = 0; | |
2732 | ||
2733 | /* before deletion, ensure that mode is not in use */ | |
2734 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2735 | j = con2fb_map[i]; | |
2736 | if (j == -1) | |
2737 | continue; | |
2738 | fb_info = registered_fb[j]; | |
2739 | if (fb_info != info) | |
2740 | continue; | |
2741 | p = &fb_display[i]; | |
2742 | if (!p || !p->mode) | |
2743 | continue; | |
2744 | if (fb_mode_is_equal(p->mode, mode)) { | |
2745 | found = 1; | |
2746 | break; | |
2747 | } | |
2748 | } | |
2749 | return found; | |
2750 | } | |
2751 | ||
2752 | static int fbcon_fb_registered(int idx) | |
2753 | { | |
2754 | int ret = 0, i; | |
2755 | ||
2756 | if (info_idx == -1) { | |
2757 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
2758 | if (con2fb_map_boot[i] == idx) { | |
2759 | info_idx = idx; | |
2760 | break; | |
2761 | } | |
2762 | } | |
2763 | if (info_idx != -1) | |
2764 | ret = fbcon_takeover(1); | |
2765 | } else { | |
2766 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
2767 | if (con2fb_map_boot[i] == idx) | |
2768 | set_con2fb_map(i, idx, 0); | |
2769 | } | |
2770 | } | |
2771 | ||
2772 | return ret; | |
2773 | } | |
2774 | ||
2775 | static void fbcon_fb_blanked(struct fb_info *info, int blank) | |
2776 | { | |
2777 | struct fbcon_ops *ops = info->fbcon_par; | |
2778 | struct vc_data *vc; | |
2779 | ||
2780 | if (!ops || ops->currcon < 0) | |
2781 | return; | |
2782 | ||
2783 | vc = vc_cons[ops->currcon].d; | |
2784 | if (vc->vc_mode != KD_TEXT || | |
2785 | registered_fb[con2fb_map[ops->currcon]] != info) | |
2786 | return; | |
2787 | ||
2788 | if (CON_IS_VISIBLE(vc)) { | |
2789 | if (blank) | |
2790 | do_blank_screen(0); | |
2791 | else | |
2792 | do_unblank_screen(0); | |
2793 | } | |
2794 | ops->blank_state = blank; | |
2795 | } | |
2796 | ||
2797 | static void fbcon_new_modelist(struct fb_info *info) | |
2798 | { | |
2799 | int i; | |
2800 | struct vc_data *vc; | |
2801 | struct fb_var_screeninfo var; | |
2802 | struct fb_videomode *mode; | |
2803 | ||
2804 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
2805 | if (registered_fb[con2fb_map[i]] != info) | |
2806 | continue; | |
2807 | if (!fb_display[i].mode) | |
2808 | continue; | |
2809 | vc = vc_cons[i].d; | |
2810 | display_to_var(&var, &fb_display[i]); | |
8fb6567e MJ |
2811 | mode = fb_find_nearest_mode(fb_display[i].mode, |
2812 | &info->modelist); | |
1da177e4 LT |
2813 | fb_videomode_to_var(&var, mode); |
2814 | ||
2815 | if (vc) | |
2816 | fbcon_set_disp(info, &var, vc); | |
2817 | else | |
2818 | fbcon_preset_disp(info, &var, i); | |
2819 | ||
2820 | } | |
2821 | } | |
2822 | ||
2823 | static int fbcon_event_notify(struct notifier_block *self, | |
2824 | unsigned long action, void *data) | |
2825 | { | |
2826 | struct fb_event *event = data; | |
2827 | struct fb_info *info = event->info; | |
2828 | struct fb_videomode *mode; | |
2829 | struct fb_con2fbmap *con2fb; | |
2830 | int ret = 0; | |
2831 | ||
2832 | switch(action) { | |
2833 | case FB_EVENT_SUSPEND: | |
2834 | fbcon_suspended(info); | |
2835 | break; | |
2836 | case FB_EVENT_RESUME: | |
2837 | fbcon_resumed(info); | |
2838 | break; | |
2839 | case FB_EVENT_MODE_CHANGE: | |
2840 | fbcon_modechanged(info); | |
2841 | break; | |
7726e9e1 AD |
2842 | case FB_EVENT_MODE_CHANGE_ALL: |
2843 | fbcon_set_all_vcs(info); | |
2844 | break; | |
1da177e4 LT |
2845 | case FB_EVENT_MODE_DELETE: |
2846 | mode = event->data; | |
2847 | ret = fbcon_mode_deleted(info, mode); | |
2848 | break; | |
2849 | case FB_EVENT_FB_REGISTERED: | |
2850 | ret = fbcon_fb_registered(info->node); | |
2851 | break; | |
2852 | case FB_EVENT_SET_CONSOLE_MAP: | |
2853 | con2fb = event->data; | |
2854 | ret = set_con2fb_map(con2fb->console - 1, | |
2855 | con2fb->framebuffer, 1); | |
2856 | break; | |
2857 | case FB_EVENT_GET_CONSOLE_MAP: | |
2858 | con2fb = event->data; | |
2859 | con2fb->framebuffer = con2fb_map[con2fb->console - 1]; | |
2860 | break; | |
2861 | case FB_EVENT_BLANK: | |
2862 | fbcon_fb_blanked(info, *(int *)event->data); | |
2863 | break; | |
2864 | case FB_EVENT_NEW_MODELIST: | |
2865 | fbcon_new_modelist(info); | |
2866 | break; | |
2867 | } | |
2868 | ||
2869 | return ret; | |
2870 | } | |
2871 | ||
2872 | /* | |
2873 | * The console `switch' structure for the frame buffer based console | |
2874 | */ | |
2875 | ||
2876 | static const struct consw fb_con = { | |
2877 | .owner = THIS_MODULE, | |
2878 | .con_startup = fbcon_startup, | |
2879 | .con_init = fbcon_init, | |
2880 | .con_deinit = fbcon_deinit, | |
2881 | .con_clear = fbcon_clear, | |
2882 | .con_putc = fbcon_putc, | |
2883 | .con_putcs = fbcon_putcs, | |
2884 | .con_cursor = fbcon_cursor, | |
2885 | .con_scroll = fbcon_scroll, | |
2886 | .con_bmove = fbcon_bmove, | |
2887 | .con_switch = fbcon_switch, | |
2888 | .con_blank = fbcon_blank, | |
2889 | .con_font_set = fbcon_set_font, | |
2890 | .con_font_get = fbcon_get_font, | |
2891 | .con_font_default = fbcon_set_def_font, | |
2892 | .con_font_copy = fbcon_copy_font, | |
2893 | .con_set_palette = fbcon_set_palette, | |
2894 | .con_scrolldelta = fbcon_scrolldelta, | |
2895 | .con_set_origin = fbcon_set_origin, | |
2896 | .con_invert_region = fbcon_invert_region, | |
2897 | .con_screen_pos = fbcon_screen_pos, | |
2898 | .con_getxy = fbcon_getxy, | |
2899 | .con_resize = fbcon_resize, | |
2900 | }; | |
2901 | ||
2902 | static struct notifier_block fbcon_event_notifier = { | |
2903 | .notifier_call = fbcon_event_notify, | |
2904 | }; | |
2905 | ||
2906 | static int __init fb_console_init(void) | |
2907 | { | |
2908 | int i; | |
2909 | ||
2910 | acquire_console_sem(); | |
2911 | fb_register_client(&fbcon_event_notifier); | |
2912 | release_console_sem(); | |
2913 | ||
2914 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
2915 | con2fb_map[i] = -1; | |
2916 | ||
2917 | if (num_registered_fb) { | |
2918 | for (i = 0; i < FB_MAX; i++) { | |
2919 | if (registered_fb[i] != NULL) { | |
2920 | info_idx = i; | |
2921 | break; | |
2922 | } | |
2923 | } | |
2924 | fbcon_takeover(0); | |
2925 | } | |
2926 | ||
2927 | return 0; | |
2928 | } | |
2929 | ||
2930 | module_init(fb_console_init); | |
2931 | ||
2932 | #ifdef MODULE | |
2933 | ||
2934 | static void __exit fb_console_exit(void) | |
2935 | { | |
2936 | acquire_console_sem(); | |
2937 | fb_unregister_client(&fbcon_event_notifier); | |
2938 | release_console_sem(); | |
2939 | give_up_console(&fb_con); | |
2940 | } | |
2941 | ||
2942 | module_exit(fb_console_exit); | |
2943 | ||
2944 | #endif | |
2945 | ||
2946 | MODULE_LICENSE("GPL"); |