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