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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/video/fbcon.c -- Low level frame buffer based console driver | |
3 | * | |
4 | * Copyright (C) 1995 Geert Uytterhoeven | |
5 | * | |
6 | * | |
7 | * This file is based on the original Amiga console driver (amicon.c): | |
8 | * | |
9 | * Copyright (C) 1993 Hamish Macdonald | |
10 | * Greg Harp | |
11 | * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk] | |
12 | * | |
13 | * with work by William Rucklidge (wjr@cs.cornell.edu) | |
14 | * Geert Uytterhoeven | |
15 | * Jes Sorensen (jds@kom.auc.dk) | |
16 | * Martin Apel | |
17 | * | |
18 | * and on the original Atari console driver (atacon.c): | |
19 | * | |
20 | * Copyright (C) 1993 Bjoern Brauel | |
21 | * Roman Hodek | |
22 | * | |
23 | * with work by Guenther Kelleter | |
24 | * Martin Schaller | |
25 | * Andreas Schwab | |
26 | * | |
27 | * Hardware cursor support added by Emmanuel Marty (core@ggi-project.org) | |
28 | * Smart redraw scrolling, arbitrary font width support, 512char font support | |
29 | * and software scrollback added by | |
30 | * Jakub Jelinek (jj@ultra.linux.cz) | |
31 | * | |
32 | * Random hacking by Martin Mares <mj@ucw.cz> | |
33 | * | |
34 | * 2001 - Documented with DocBook | |
35 | * - Brad Douglas <brad@neruo.com> | |
36 | * | |
37 | * The low level operations for the various display memory organizations are | |
38 | * now in separate source files. | |
39 | * | |
40 | * Currently the following organizations are supported: | |
41 | * | |
42 | * o afb Amiga bitplanes | |
43 | * o cfb{2,4,8,16,24,32} Packed pixels | |
44 | * o ilbm Amiga interleaved bitplanes | |
45 | * o iplan2p[248] Atari interleaved bitplanes | |
46 | * o mfb Monochrome | |
47 | * o vga VGA characters/attributes | |
48 | * | |
49 | * To do: | |
50 | * | |
51 | * - Implement 16 plane mode (iplan2p16) | |
52 | * | |
53 | * | |
54 | * This file is subject to the terms and conditions of the GNU General Public | |
55 | * License. See the file COPYING in the main directory of this archive for | |
56 | * more details. | |
57 | */ | |
58 | ||
59 | #undef FBCONDEBUG | |
60 | ||
1da177e4 LT |
61 | #include <linux/module.h> |
62 | #include <linux/types.h> | |
1da177e4 LT |
63 | #include <linux/fs.h> |
64 | #include <linux/kernel.h> | |
65 | #include <linux/delay.h> /* MSch: for IRQ probe */ | |
1da177e4 LT |
66 | #include <linux/console.h> |
67 | #include <linux/string.h> | |
68 | #include <linux/kd.h> | |
69 | #include <linux/slab.h> | |
70 | #include <linux/fb.h> | |
71 | #include <linux/vt_kern.h> | |
72 | #include <linux/selection.h> | |
73 | #include <linux/font.h> | |
74 | #include <linux/smp.h> | |
75 | #include <linux/init.h> | |
76 | #include <linux/interrupt.h> | |
77 | #include <linux/crc32.h> /* For counting font checksums */ | |
623e71b0 | 78 | #include <asm/fb.h> |
1da177e4 LT |
79 | #include <asm/irq.h> |
80 | #include <asm/system.h> | |
1da177e4 LT |
81 | #ifdef CONFIG_ATARI |
82 | #include <asm/atariints.h> | |
83 | #endif | |
7b892806 | 84 | #if defined(__mc68000__) |
1da177e4 LT |
85 | #include <asm/machdep.h> |
86 | #include <asm/setup.h> | |
87 | #endif | |
88 | ||
89 | #include "fbcon.h" | |
90 | ||
91 | #ifdef FBCONDEBUG | |
5ae12170 | 92 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) |
1da177e4 LT |
93 | #else |
94 | # define DPRINTK(fmt, args...) | |
95 | #endif | |
96 | ||
97 | enum { | |
98 | FBCON_LOGO_CANSHOW = -1, /* the logo can be shown */ | |
99 | FBCON_LOGO_DRAW = -2, /* draw the logo to a console */ | |
100 | FBCON_LOGO_DONTSHOW = -3 /* do not show the logo */ | |
101 | }; | |
102 | ||
ab767201 | 103 | static struct display fb_display[MAX_NR_CONSOLES]; |
e4fc2761 | 104 | |
1da177e4 LT |
105 | static signed char con2fb_map[MAX_NR_CONSOLES]; |
106 | static signed char con2fb_map_boot[MAX_NR_CONSOLES]; | |
49a1d28f | 107 | |
1da177e4 LT |
108 | static int logo_lines; |
109 | /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO | |
110 | enums. */ | |
111 | static int logo_shown = FBCON_LOGO_CANSHOW; | |
112 | /* Software scrollback */ | |
113 | static int fbcon_softback_size = 32768; | |
114 | static unsigned long softback_buf, softback_curr; | |
115 | static unsigned long softback_in; | |
116 | static unsigned long softback_top, softback_end; | |
117 | static int softback_lines; | |
118 | /* console mappings */ | |
119 | static int first_fb_vc; | |
120 | static int last_fb_vc = MAX_NR_CONSOLES - 1; | |
121 | static int fbcon_is_default = 1; | |
e614b18d | 122 | static int fbcon_has_exited; |
623e71b0 | 123 | static int primary_device = -1; |
4769a9a5 AD |
124 | |
125 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY | |
623e71b0 | 126 | static int map_override; |
e614b18d | 127 | |
4769a9a5 AD |
128 | static inline void fbcon_map_override(void) |
129 | { | |
130 | map_override = 1; | |
131 | } | |
132 | #else | |
133 | static inline void fbcon_map_override(void) | |
134 | { | |
135 | } | |
136 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY */ | |
137 | ||
1da177e4 LT |
138 | /* font data */ |
139 | static char fontname[40]; | |
140 | ||
141 | /* current fb_info */ | |
142 | static int info_idx = -1; | |
143 | ||
e4fc2761 | 144 | /* console rotation */ |
2428e59b | 145 | static int initial_rotation; |
0a727dea | 146 | static int fbcon_has_sysfs; |
e4fc2761 | 147 | |
1da177e4 LT |
148 | static const struct consw fb_con; |
149 | ||
150 | #define CM_SOFTBACK (8) | |
151 | ||
152 | #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) | |
153 | ||
1da177e4 LT |
154 | static int fbcon_set_origin(struct vc_data *); |
155 | ||
156 | #define CURSOR_DRAW_DELAY (1) | |
157 | ||
158 | /* # VBL ints between cursor state changes */ | |
1da177e4 | 159 | #define ATARI_CURSOR_BLINK_RATE (42) |
1da177e4 LT |
160 | |
161 | static int vbl_cursor_cnt; | |
acba9cd0 | 162 | static int fbcon_cursor_noblink; |
1da177e4 LT |
163 | |
164 | #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) | |
165 | ||
166 | /* | |
167 | * Interface used by the world | |
168 | */ | |
169 | ||
170 | static const char *fbcon_startup(void); | |
171 | static void fbcon_init(struct vc_data *vc, int init); | |
172 | static void fbcon_deinit(struct vc_data *vc); | |
173 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, | |
174 | int width); | |
175 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos); | |
176 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
177 | int count, int ypos, int xpos); | |
178 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only); | |
179 | static void fbcon_cursor(struct vc_data *vc, int mode); | |
180 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
181 | int count); | |
182 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
183 | int height, int width); | |
184 | static int fbcon_switch(struct vc_data *vc); | |
185 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); | |
186 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table); | |
187 | static int fbcon_scrolldelta(struct vc_data *vc, int lines); | |
188 | ||
189 | /* | |
190 | * Internal routines | |
191 | */ | |
1da177e4 LT |
192 | static __inline__ void ywrap_up(struct vc_data *vc, int count); |
193 | static __inline__ void ywrap_down(struct vc_data *vc, int count); | |
194 | static __inline__ void ypan_up(struct vc_data *vc, int count); | |
195 | static __inline__ void ypan_down(struct vc_data *vc, int count); | |
196 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
197 | int dy, int dx, int height, int width, u_int y_break); | |
198 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
d1baa4ff | 199 | int unit); |
1da177e4 LT |
200 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, |
201 | int line, int count, int dy); | |
a812c94b AD |
202 | static void fbcon_modechanged(struct fb_info *info); |
203 | static void fbcon_set_all_vcs(struct fb_info *info); | |
5428b044 AD |
204 | static void fbcon_start(void); |
205 | static void fbcon_exit(void); | |
0c6c1ce0 | 206 | static struct device *fbcon_device; |
9a179176 | 207 | |
dbcbfe1e | 208 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION |
b73deed3 | 209 | static inline void fbcon_set_rotation(struct fb_info *info) |
dbcbfe1e AD |
210 | { |
211 | struct fbcon_ops *ops = info->fbcon_par; | |
212 | ||
213 | if (!(info->flags & FBINFO_MISC_TILEBLITTING) && | |
b73deed3 AD |
214 | ops->p->con_rotate < 4) |
215 | ops->rotate = ops->p->con_rotate; | |
dbcbfe1e AD |
216 | else |
217 | ops->rotate = 0; | |
218 | } | |
a812c94b AD |
219 | |
220 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
221 | { | |
222 | struct fbcon_ops *ops= info->fbcon_par; | |
223 | struct fb_info *fb_info; | |
224 | ||
225 | if (!ops || ops->currcon == -1) | |
226 | return; | |
227 | ||
228 | fb_info = registered_fb[con2fb_map[ops->currcon]]; | |
229 | ||
230 | if (info == fb_info) { | |
231 | struct display *p = &fb_display[ops->currcon]; | |
232 | ||
233 | if (rotate < 4) | |
234 | p->con_rotate = rotate; | |
235 | else | |
236 | p->con_rotate = 0; | |
237 | ||
238 | fbcon_modechanged(info); | |
239 | } | |
240 | } | |
241 | ||
242 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
243 | { | |
244 | struct fbcon_ops *ops = info->fbcon_par; | |
245 | struct vc_data *vc; | |
246 | struct display *p; | |
247 | int i; | |
248 | ||
249 | if (!ops || ops->currcon < 0 || rotate > 3) | |
250 | return; | |
251 | ||
e614b18d | 252 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
a812c94b AD |
253 | vc = vc_cons[i].d; |
254 | if (!vc || vc->vc_mode != KD_TEXT || | |
255 | registered_fb[con2fb_map[i]] != info) | |
256 | continue; | |
257 | ||
258 | p = &fb_display[vc->vc_num]; | |
259 | p->con_rotate = rotate; | |
260 | } | |
261 | ||
262 | fbcon_set_all_vcs(info); | |
263 | } | |
dbcbfe1e | 264 | #else |
b73deed3 | 265 | static inline void fbcon_set_rotation(struct fb_info *info) |
e4fc2761 AD |
266 | { |
267 | struct fbcon_ops *ops = info->fbcon_par; | |
268 | ||
269 | ops->rotate = FB_ROTATE_UR; | |
270 | } | |
a812c94b AD |
271 | |
272 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
273 | { | |
274 | return; | |
275 | } | |
276 | ||
277 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
278 | { | |
279 | return; | |
280 | } | |
dbcbfe1e | 281 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ |
e4fc2761 | 282 | |
a812c94b AD |
283 | static int fbcon_get_rotate(struct fb_info *info) |
284 | { | |
285 | struct fbcon_ops *ops = info->fbcon_par; | |
286 | ||
287 | return (ops) ? ops->rotate : 0; | |
288 | } | |
289 | ||
1da177e4 LT |
290 | static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) |
291 | { | |
292 | struct fbcon_ops *ops = info->fbcon_par; | |
293 | ||
294 | return (info->state != FBINFO_STATE_RUNNING || | |
295 | vc->vc_mode != KD_TEXT || ops->graphics); | |
296 | } | |
297 | ||
298 | static inline int get_color(struct vc_data *vc, struct fb_info *info, | |
299 | u16 c, int is_fg) | |
300 | { | |
b8c90945 | 301 | int depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
302 | int color = 0; |
303 | ||
304 | if (console_blanked) { | |
305 | unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; | |
306 | ||
307 | c = vc->vc_video_erase_char & charmask; | |
308 | } | |
309 | ||
310 | if (depth != 1) | |
311 | color = (is_fg) ? attr_fgcol((vc->vc_hi_font_mask) ? 9 : 8, c) | |
312 | : attr_bgcol((vc->vc_hi_font_mask) ? 13 : 12, c); | |
313 | ||
314 | switch (depth) { | |
315 | case 1: | |
316 | { | |
91c43132 | 317 | int col = mono_col(info); |
1da177e4 | 318 | /* 0 or 1 */ |
b8c90945 AD |
319 | int fg = (info->fix.visual != FB_VISUAL_MONO01) ? col : 0; |
320 | int bg = (info->fix.visual != FB_VISUAL_MONO01) ? 0 : col; | |
1da177e4 LT |
321 | |
322 | if (console_blanked) | |
323 | fg = bg; | |
324 | ||
325 | color = (is_fg) ? fg : bg; | |
326 | break; | |
327 | } | |
328 | case 2: | |
329 | /* | |
330 | * Scale down 16-colors to 4 colors. Default 4-color palette | |
2cc38ed1 AD |
331 | * is grayscale. However, simply dividing the values by 4 |
332 | * will not work, as colors 1, 2 and 3 will be scaled-down | |
333 | * to zero rendering them invisible. So empirically convert | |
334 | * colors to a sane 4-level grayscale. | |
1da177e4 | 335 | */ |
2cc38ed1 AD |
336 | switch (color) { |
337 | case 0: | |
338 | color = 0; /* black */ | |
339 | break; | |
340 | case 1 ... 6: | |
341 | color = 2; /* white */ | |
342 | break; | |
343 | case 7 ... 8: | |
344 | color = 1; /* gray */ | |
345 | break; | |
346 | default: | |
347 | color = 3; /* intense white */ | |
348 | break; | |
349 | } | |
350 | break; | |
1da177e4 LT |
351 | case 3: |
352 | /* | |
353 | * Last 8 entries of default 16-color palette is a more intense | |
354 | * version of the first 8 (i.e., same chrominance, different | |
355 | * luminance). | |
356 | */ | |
357 | color &= 7; | |
358 | break; | |
359 | } | |
360 | ||
361 | ||
362 | return color; | |
363 | } | |
364 | ||
4d9c5b6e AD |
365 | static void fbcon_update_softback(struct vc_data *vc) |
366 | { | |
367 | int l = fbcon_softback_size / vc->vc_size_row; | |
368 | ||
369 | if (l > 5) | |
370 | softback_end = softback_buf + l * vc->vc_size_row; | |
371 | else | |
372 | /* Smaller scrollback makes no sense, and 0 would screw | |
373 | the operation totally */ | |
374 | softback_top = 0; | |
375 | } | |
376 | ||
c4028958 | 377 | static void fb_flashcursor(struct work_struct *work) |
1da177e4 | 378 | { |
c4028958 | 379 | struct fb_info *info = container_of(work, struct fb_info, queue); |
1da177e4 LT |
380 | struct fbcon_ops *ops = info->fbcon_par; |
381 | struct display *p; | |
382 | struct vc_data *vc = NULL; | |
383 | int c; | |
384 | int mode; | |
385 | ||
5428b044 AD |
386 | acquire_console_sem(); |
387 | if (ops && ops->currcon != -1) | |
1da177e4 LT |
388 | vc = vc_cons[ops->currcon].d; |
389 | ||
390 | if (!vc || !CON_IS_VISIBLE(vc) || | |
dbd4f128 | 391 | registered_fb[con2fb_map[vc->vc_num]] != info || |
212f2639 | 392 | vc->vc_deccm != 1) { |
5428b044 | 393 | release_console_sem(); |
1da177e4 | 394 | return; |
5428b044 AD |
395 | } |
396 | ||
1da177e4 LT |
397 | p = &fb_display[vc->vc_num]; |
398 | c = scr_readw((u16 *) vc->vc_pos); | |
399 | mode = (!ops->cursor_flash || ops->cursor_state.enable) ? | |
400 | CM_ERASE : CM_DRAW; | |
b73deed3 | 401 | ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1), |
1da177e4 LT |
402 | get_color(vc, info, c, 0)); |
403 | release_console_sem(); | |
404 | } | |
405 | ||
79f0c9a0 | 406 | #ifdef CONFIG_ATARI |
1da177e4 | 407 | static int cursor_blink_rate; |
7d12e780 | 408 | static irqreturn_t fb_vbl_handler(int irq, void *dev_id) |
1da177e4 LT |
409 | { |
410 | struct fb_info *info = dev_id; | |
411 | ||
412 | if (vbl_cursor_cnt && --vbl_cursor_cnt == 0) { | |
413 | schedule_work(&info->queue); | |
414 | vbl_cursor_cnt = cursor_blink_rate; | |
415 | } | |
416 | return IRQ_HANDLED; | |
417 | } | |
418 | #endif | |
419 | ||
420 | static void cursor_timer_handler(unsigned long dev_addr) | |
421 | { | |
422 | struct fb_info *info = (struct fb_info *) dev_addr; | |
423 | struct fbcon_ops *ops = info->fbcon_par; | |
424 | ||
425 | schedule_work(&info->queue); | |
426 | mod_timer(&ops->cursor_timer, jiffies + HZ/5); | |
427 | } | |
428 | ||
88fb2c6e AD |
429 | static void fbcon_add_cursor_timer(struct fb_info *info) |
430 | { | |
431 | struct fbcon_ops *ops = info->fbcon_par; | |
432 | ||
433 | if ((!info->queue.func || info->queue.func == fb_flashcursor) && | |
acba9cd0 AD |
434 | !(ops->flags & FBCON_FLAGS_CURSOR_TIMER) && |
435 | !fbcon_cursor_noblink) { | |
88fb2c6e | 436 | if (!info->queue.func) |
c4028958 | 437 | INIT_WORK(&info->queue, fb_flashcursor); |
88fb2c6e AD |
438 | |
439 | init_timer(&ops->cursor_timer); | |
440 | ops->cursor_timer.function = cursor_timer_handler; | |
441 | ops->cursor_timer.expires = jiffies + HZ / 5; | |
442 | ops->cursor_timer.data = (unsigned long ) info; | |
443 | add_timer(&ops->cursor_timer); | |
444 | ops->flags |= FBCON_FLAGS_CURSOR_TIMER; | |
445 | } | |
446 | } | |
447 | ||
448 | static void fbcon_del_cursor_timer(struct fb_info *info) | |
449 | { | |
450 | struct fbcon_ops *ops = info->fbcon_par; | |
451 | ||
452 | if (info->queue.func == fb_flashcursor && | |
453 | ops->flags & FBCON_FLAGS_CURSOR_TIMER) { | |
454 | del_timer_sync(&ops->cursor_timer); | |
455 | ops->flags &= ~FBCON_FLAGS_CURSOR_TIMER; | |
456 | } | |
457 | } | |
458 | ||
1da177e4 LT |
459 | #ifndef MODULE |
460 | static int __init fb_console_setup(char *this_opt) | |
461 | { | |
462 | char *options; | |
463 | int i, j; | |
464 | ||
465 | if (!this_opt || !*this_opt) | |
9b41046c | 466 | return 1; |
1da177e4 LT |
467 | |
468 | while ((options = strsep(&this_opt, ",")) != NULL) { | |
469 | if (!strncmp(options, "font:", 5)) | |
470 | strcpy(fontname, options + 5); | |
471 | ||
472 | if (!strncmp(options, "scrollback:", 11)) { | |
473 | options += 11; | |
474 | if (*options) { | |
475 | fbcon_softback_size = simple_strtoul(options, &options, 0); | |
476 | if (*options == 'k' || *options == 'K') { | |
477 | fbcon_softback_size *= 1024; | |
478 | options++; | |
479 | } | |
480 | if (*options != ',') | |
9b41046c | 481 | return 1; |
1da177e4 LT |
482 | options++; |
483 | } else | |
9b41046c | 484 | return 1; |
1da177e4 LT |
485 | } |
486 | ||
487 | if (!strncmp(options, "map:", 4)) { | |
488 | options += 4; | |
623e71b0 | 489 | if (*options) { |
1da177e4 LT |
490 | for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { |
491 | if (!options[j]) | |
492 | j = 0; | |
493 | con2fb_map_boot[i] = | |
494 | (options[j++]-'0') % FB_MAX; | |
495 | } | |
623e71b0 | 496 | |
4769a9a5 | 497 | fbcon_map_override(); |
623e71b0 AD |
498 | } |
499 | ||
9b41046c | 500 | return 1; |
1da177e4 LT |
501 | } |
502 | ||
503 | if (!strncmp(options, "vc:", 3)) { | |
504 | options += 3; | |
505 | if (*options) | |
506 | first_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
507 | if (first_fb_vc < 0) | |
508 | first_fb_vc = 0; | |
509 | if (*options++ == '-') | |
510 | last_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
511 | fbcon_is_default = 0; | |
512 | } | |
e4fc2761 AD |
513 | |
514 | if (!strncmp(options, "rotate:", 7)) { | |
515 | options += 7; | |
516 | if (*options) | |
2428e59b MS |
517 | initial_rotation = simple_strtoul(options, &options, 0); |
518 | if (initial_rotation > 3) | |
519 | initial_rotation = 0; | |
e4fc2761 | 520 | } |
1da177e4 | 521 | } |
9b41046c | 522 | return 1; |
1da177e4 LT |
523 | } |
524 | ||
525 | __setup("fbcon=", fb_console_setup); | |
526 | #endif | |
527 | ||
528 | static int search_fb_in_map(int idx) | |
529 | { | |
530 | int i, retval = 0; | |
531 | ||
e614b18d | 532 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
533 | if (con2fb_map[i] == idx) |
534 | retval = 1; | |
535 | } | |
536 | return retval; | |
537 | } | |
538 | ||
539 | static int search_for_mapped_con(void) | |
540 | { | |
541 | int i, retval = 0; | |
542 | ||
e614b18d | 543 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
544 | if (con2fb_map[i] != -1) |
545 | retval = 1; | |
546 | } | |
547 | return retval; | |
548 | } | |
549 | ||
550 | static int fbcon_takeover(int show_logo) | |
551 | { | |
552 | int err, i; | |
553 | ||
554 | if (!num_registered_fb) | |
555 | return -ENODEV; | |
556 | ||
557 | if (!show_logo) | |
558 | logo_shown = FBCON_LOGO_DONTSHOW; | |
559 | ||
560 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
561 | con2fb_map[i] = info_idx; | |
562 | ||
563 | err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, | |
564 | fbcon_is_default); | |
e614b18d | 565 | |
1da177e4 LT |
566 | if (err) { |
567 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
568 | con2fb_map[i] = -1; | |
569 | } | |
570 | info_idx = -1; | |
571 | } | |
572 | ||
573 | return err; | |
574 | } | |
575 | ||
70802c60 AD |
576 | #ifdef MODULE |
577 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, | |
578 | int cols, int rows, int new_cols, int new_rows) | |
579 | { | |
580 | logo_shown = FBCON_LOGO_DONTSHOW; | |
581 | } | |
582 | #else | |
1da177e4 LT |
583 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, |
584 | int cols, int rows, int new_cols, int new_rows) | |
585 | { | |
586 | /* Need to make room for the logo */ | |
9c44e5f6 | 587 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
588 | int cnt, erase = vc->vc_video_erase_char, step; |
589 | unsigned short *save = NULL, *r, *q; | |
49a1d28f | 590 | int logo_height; |
1da177e4 | 591 | |
70802c60 AD |
592 | if (info->flags & FBINFO_MODULE) { |
593 | logo_shown = FBCON_LOGO_DONTSHOW; | |
594 | return; | |
595 | } | |
596 | ||
1da177e4 LT |
597 | /* |
598 | * remove underline attribute from erase character | |
599 | * if black and white framebuffer. | |
600 | */ | |
b8c90945 | 601 | if (fb_get_color_depth(&info->var, &info->fix) == 1) |
1da177e4 | 602 | erase &= ~0x400; |
9c44e5f6 | 603 | logo_height = fb_prepare_logo(info, ops->rotate); |
416e74ea | 604 | logo_lines = DIV_ROUND_UP(logo_height, vc->vc_font.height); |
1da177e4 LT |
605 | q = (unsigned short *) (vc->vc_origin + |
606 | vc->vc_size_row * rows); | |
607 | step = logo_lines * cols; | |
608 | for (r = q - logo_lines * cols; r < q; r++) | |
609 | if (scr_readw(r) != vc->vc_video_erase_char) | |
610 | break; | |
611 | if (r != q && new_rows >= rows + logo_lines) { | |
612 | save = kmalloc(logo_lines * new_cols * 2, GFP_KERNEL); | |
613 | if (save) { | |
614 | int i = cols < new_cols ? cols : new_cols; | |
615 | scr_memsetw(save, erase, logo_lines * new_cols * 2); | |
616 | r = q - step; | |
617 | for (cnt = 0; cnt < logo_lines; cnt++, r += i) | |
618 | scr_memcpyw(save + cnt * new_cols, r, 2 * i); | |
619 | r = q; | |
620 | } | |
621 | } | |
622 | if (r == q) { | |
623 | /* We can scroll screen down */ | |
624 | r = q - step - cols; | |
625 | for (cnt = rows - logo_lines; cnt > 0; cnt--) { | |
626 | scr_memcpyw(r + step, r, vc->vc_size_row); | |
627 | r -= cols; | |
628 | } | |
629 | if (!save) { | |
250038f5 GU |
630 | int lines; |
631 | if (vc->vc_y + logo_lines >= rows) | |
632 | lines = rows - vc->vc_y - 1; | |
633 | else | |
634 | lines = logo_lines; | |
635 | vc->vc_y += lines; | |
636 | vc->vc_pos += lines * vc->vc_size_row; | |
1da177e4 LT |
637 | } |
638 | } | |
639 | scr_memsetw((unsigned short *) vc->vc_origin, | |
640 | erase, | |
641 | vc->vc_size_row * logo_lines); | |
642 | ||
643 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { | |
644 | fbcon_clear_margins(vc, 0); | |
645 | update_screen(vc); | |
646 | } | |
647 | ||
648 | if (save) { | |
649 | q = (unsigned short *) (vc->vc_origin + | |
650 | vc->vc_size_row * | |
651 | rows); | |
652 | scr_memcpyw(q, save, logo_lines * new_cols * 2); | |
653 | vc->vc_y += logo_lines; | |
654 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
655 | kfree(save); | |
656 | } | |
657 | ||
658 | if (logo_lines > vc->vc_bottom) { | |
659 | logo_shown = FBCON_LOGO_CANSHOW; | |
660 | printk(KERN_INFO | |
661 | "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); | |
662 | } else if (logo_shown != FBCON_LOGO_DONTSHOW) { | |
663 | logo_shown = FBCON_LOGO_DRAW; | |
664 | vc->vc_top = logo_lines; | |
665 | } | |
666 | } | |
70802c60 | 667 | #endif /* MODULE */ |
1da177e4 LT |
668 | |
669 | #ifdef CONFIG_FB_TILEBLITTING | |
b73deed3 | 670 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
671 | { |
672 | struct fbcon_ops *ops = info->fbcon_par; | |
673 | ||
b73deed3 | 674 | ops->p = &fb_display[vc->vc_num]; |
ab767201 | 675 | |
1da177e4 | 676 | if ((info->flags & FBINFO_MISC_TILEBLITTING)) |
b73deed3 | 677 | fbcon_set_tileops(vc, info); |
e4fc2761 | 678 | else { |
b73deed3 | 679 | fbcon_set_rotation(info); |
1da177e4 | 680 | fbcon_set_bitops(ops); |
e4fc2761 | 681 | } |
1da177e4 | 682 | } |
38b4982c AD |
683 | |
684 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
685 | { | |
686 | int err = 0; | |
687 | ||
688 | if (info->flags & FBINFO_MISC_TILEBLITTING && | |
689 | info->tileops->fb_get_tilemax(info) < charcount) | |
690 | err = 1; | |
691 | ||
692 | return err; | |
693 | } | |
1da177e4 | 694 | #else |
b73deed3 | 695 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
696 | { |
697 | struct fbcon_ops *ops = info->fbcon_par; | |
698 | ||
699 | info->flags &= ~FBINFO_MISC_TILEBLITTING; | |
b73deed3 AD |
700 | ops->p = &fb_display[vc->vc_num]; |
701 | fbcon_set_rotation(info); | |
1da177e4 LT |
702 | fbcon_set_bitops(ops); |
703 | } | |
38b4982c AD |
704 | |
705 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
706 | { | |
707 | return 0; | |
708 | } | |
709 | ||
1da177e4 LT |
710 | #endif /* CONFIG_MISC_TILEBLITTING */ |
711 | ||
712 | ||
713 | static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, | |
714 | int unit, int oldidx) | |
715 | { | |
716 | struct fbcon_ops *ops = NULL; | |
717 | int err = 0; | |
718 | ||
719 | if (!try_module_get(info->fbops->owner)) | |
720 | err = -ENODEV; | |
721 | ||
722 | if (!err && info->fbops->fb_open && | |
723 | info->fbops->fb_open(info, 0)) | |
724 | err = -ENODEV; | |
725 | ||
726 | if (!err) { | |
a39bc34e | 727 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
728 | if (!ops) |
729 | err = -ENOMEM; | |
730 | } | |
731 | ||
732 | if (!err) { | |
1da177e4 | 733 | info->fbcon_par = ops; |
d1baa4ff AD |
734 | |
735 | if (vc) | |
736 | set_blitting_type(vc, info); | |
1da177e4 LT |
737 | } |
738 | ||
739 | if (err) { | |
740 | con2fb_map[unit] = oldidx; | |
741 | module_put(info->fbops->owner); | |
742 | } | |
743 | ||
744 | return err; | |
745 | } | |
746 | ||
747 | static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo, | |
748 | struct fb_info *newinfo, int unit, | |
749 | int oldidx, int found) | |
750 | { | |
751 | struct fbcon_ops *ops = oldinfo->fbcon_par; | |
752 | int err = 0; | |
753 | ||
754 | if (oldinfo->fbops->fb_release && | |
755 | oldinfo->fbops->fb_release(oldinfo, 0)) { | |
756 | con2fb_map[unit] = oldidx; | |
757 | if (!found && newinfo->fbops->fb_release) | |
758 | newinfo->fbops->fb_release(newinfo, 0); | |
759 | if (!found) | |
760 | module_put(newinfo->fbops->owner); | |
761 | err = -ENODEV; | |
762 | } | |
763 | ||
764 | if (!err) { | |
88fb2c6e | 765 | fbcon_del_cursor_timer(oldinfo); |
1da177e4 LT |
766 | kfree(ops->cursor_state.mask); |
767 | kfree(ops->cursor_data); | |
e4fc2761 | 768 | kfree(ops->fontbuffer); |
1da177e4 LT |
769 | kfree(oldinfo->fbcon_par); |
770 | oldinfo->fbcon_par = NULL; | |
771 | module_put(oldinfo->fbops->owner); | |
dd0314f7 AD |
772 | /* |
773 | If oldinfo and newinfo are driving the same hardware, | |
774 | the fb_release() method of oldinfo may attempt to | |
775 | restore the hardware state. This will leave the | |
776 | newinfo in an undefined state. Thus, a call to | |
777 | fb_set_par() may be needed for the newinfo. | |
778 | */ | |
779 | if (newinfo->fbops->fb_set_par) | |
780 | newinfo->fbops->fb_set_par(newinfo); | |
1da177e4 LT |
781 | } |
782 | ||
783 | return err; | |
784 | } | |
785 | ||
1da177e4 LT |
786 | static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, |
787 | int unit, int show_logo) | |
788 | { | |
789 | struct fbcon_ops *ops = info->fbcon_par; | |
790 | ||
791 | ops->currcon = fg_console; | |
792 | ||
793 | if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) | |
794 | info->fbops->fb_set_par(info); | |
795 | ||
796 | ops->flags |= FBCON_FLAGS_INIT; | |
797 | ops->graphics = 0; | |
d1baa4ff | 798 | fbcon_set_disp(info, &info->var, unit); |
1da177e4 LT |
799 | |
800 | if (show_logo) { | |
801 | struct vc_data *fg_vc = vc_cons[fg_console].d; | |
802 | struct fb_info *fg_info = | |
803 | registered_fb[con2fb_map[fg_console]]; | |
804 | ||
805 | fbcon_prepare_logo(fg_vc, fg_info, fg_vc->vc_cols, | |
806 | fg_vc->vc_rows, fg_vc->vc_cols, | |
807 | fg_vc->vc_rows); | |
808 | } | |
809 | ||
810 | update_screen(vc_cons[fg_console].d); | |
811 | } | |
812 | ||
813 | /** | |
814 | * set_con2fb_map - map console to frame buffer device | |
815 | * @unit: virtual console number to map | |
816 | * @newidx: frame buffer index to map virtual console to | |
817 | * @user: user request | |
818 | * | |
819 | * Maps a virtual console @unit to a frame buffer device | |
820 | * @newidx. | |
821 | */ | |
822 | static int set_con2fb_map(int unit, int newidx, int user) | |
823 | { | |
824 | struct vc_data *vc = vc_cons[unit].d; | |
825 | int oldidx = con2fb_map[unit]; | |
826 | struct fb_info *info = registered_fb[newidx]; | |
827 | struct fb_info *oldinfo = NULL; | |
828 | int found, err = 0; | |
829 | ||
830 | if (oldidx == newidx) | |
831 | return 0; | |
832 | ||
e614b18d AD |
833 | if (!info || fbcon_has_exited) |
834 | return -EINVAL; | |
1da177e4 LT |
835 | |
836 | if (!err && !search_for_mapped_con()) { | |
837 | info_idx = newidx; | |
838 | return fbcon_takeover(0); | |
839 | } | |
840 | ||
841 | if (oldidx != -1) | |
842 | oldinfo = registered_fb[oldidx]; | |
843 | ||
844 | found = search_fb_in_map(newidx); | |
845 | ||
846 | acquire_console_sem(); | |
847 | con2fb_map[unit] = newidx; | |
848 | if (!err && !found) | |
849 | err = con2fb_acquire_newinfo(vc, info, unit, oldidx); | |
850 | ||
851 | ||
852 | /* | |
853 | * If old fb is not mapped to any of the consoles, | |
854 | * fbcon should release it. | |
855 | */ | |
856 | if (!err && oldinfo && !search_fb_in_map(oldidx)) | |
857 | err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx, | |
858 | found); | |
859 | ||
860 | if (!err) { | |
861 | int show_logo = (fg_console == 0 && !user && | |
862 | logo_shown != FBCON_LOGO_DONTSHOW); | |
863 | ||
864 | if (!found) | |
88fb2c6e | 865 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
866 | con2fb_map_boot[unit] = newidx; |
867 | con2fb_init_display(vc, info, unit, show_logo); | |
868 | } | |
869 | ||
e614b18d AD |
870 | if (!search_fb_in_map(info_idx)) |
871 | info_idx = newidx; | |
872 | ||
1da177e4 LT |
873 | release_console_sem(); |
874 | return err; | |
875 | } | |
876 | ||
877 | /* | |
878 | * Low Level Operations | |
879 | */ | |
880 | /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ | |
881 | static int var_to_display(struct display *disp, | |
882 | struct fb_var_screeninfo *var, | |
883 | struct fb_info *info) | |
884 | { | |
885 | disp->xres_virtual = var->xres_virtual; | |
886 | disp->yres_virtual = var->yres_virtual; | |
887 | disp->bits_per_pixel = var->bits_per_pixel; | |
888 | disp->grayscale = var->grayscale; | |
889 | disp->nonstd = var->nonstd; | |
890 | disp->accel_flags = var->accel_flags; | |
891 | disp->height = var->height; | |
892 | disp->width = var->width; | |
893 | disp->red = var->red; | |
894 | disp->green = var->green; | |
895 | disp->blue = var->blue; | |
896 | disp->transp = var->transp; | |
897 | disp->rotate = var->rotate; | |
898 | disp->mode = fb_match_mode(var, &info->modelist); | |
899 | if (disp->mode == NULL) | |
900 | /* This should not happen */ | |
901 | return -EINVAL; | |
902 | return 0; | |
903 | } | |
904 | ||
905 | static void display_to_var(struct fb_var_screeninfo *var, | |
906 | struct display *disp) | |
907 | { | |
908 | fb_videomode_to_var(var, disp->mode); | |
909 | var->xres_virtual = disp->xres_virtual; | |
910 | var->yres_virtual = disp->yres_virtual; | |
911 | var->bits_per_pixel = disp->bits_per_pixel; | |
912 | var->grayscale = disp->grayscale; | |
913 | var->nonstd = disp->nonstd; | |
914 | var->accel_flags = disp->accel_flags; | |
915 | var->height = disp->height; | |
916 | var->width = disp->width; | |
917 | var->red = disp->red; | |
918 | var->green = disp->green; | |
919 | var->blue = disp->blue; | |
920 | var->transp = disp->transp; | |
921 | var->rotate = disp->rotate; | |
922 | } | |
923 | ||
924 | static const char *fbcon_startup(void) | |
925 | { | |
926 | const char *display_desc = "frame buffer device"; | |
927 | struct display *p = &fb_display[fg_console]; | |
928 | struct vc_data *vc = vc_cons[fg_console].d; | |
2f4516db | 929 | const struct font_desc *font = NULL; |
1da177e4 LT |
930 | struct module *owner; |
931 | struct fb_info *info = NULL; | |
932 | struct fbcon_ops *ops; | |
933 | int rows, cols; | |
1da177e4 | 934 | |
1da177e4 LT |
935 | /* |
936 | * If num_registered_fb is zero, this is a call for the dummy part. | |
937 | * The frame buffer devices weren't initialized yet. | |
938 | */ | |
939 | if (!num_registered_fb || info_idx == -1) | |
940 | return display_desc; | |
941 | /* | |
942 | * Instead of blindly using registered_fb[0], we use info_idx, set by | |
943 | * fb_console_init(); | |
944 | */ | |
945 | info = registered_fb[info_idx]; | |
946 | if (!info) | |
947 | return NULL; | |
948 | ||
949 | owner = info->fbops->owner; | |
950 | if (!try_module_get(owner)) | |
951 | return NULL; | |
952 | if (info->fbops->fb_open && info->fbops->fb_open(info, 0)) { | |
953 | module_put(owner); | |
954 | return NULL; | |
955 | } | |
956 | ||
a39bc34e | 957 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
958 | if (!ops) { |
959 | module_put(owner); | |
960 | return NULL; | |
961 | } | |
962 | ||
1da177e4 LT |
963 | ops->currcon = -1; |
964 | ops->graphics = 1; | |
e4fc2761 | 965 | ops->cur_rotate = -1; |
1da177e4 | 966 | info->fbcon_par = ops; |
2428e59b | 967 | p->con_rotate = initial_rotation; |
b73deed3 | 968 | set_blitting_type(vc, info); |
1da177e4 LT |
969 | |
970 | if (info->fix.type != FB_TYPE_TEXT) { | |
971 | if (fbcon_softback_size) { | |
972 | if (!softback_buf) { | |
973 | softback_buf = | |
974 | (unsigned long) | |
975 | kmalloc(fbcon_softback_size, | |
976 | GFP_KERNEL); | |
977 | if (!softback_buf) { | |
978 | fbcon_softback_size = 0; | |
979 | softback_top = 0; | |
980 | } | |
981 | } | |
982 | } else { | |
983 | if (softback_buf) { | |
984 | kfree((void *) softback_buf); | |
985 | softback_buf = 0; | |
986 | softback_top = 0; | |
987 | } | |
988 | } | |
989 | if (softback_buf) | |
990 | softback_in = softback_top = softback_curr = | |
991 | softback_buf; | |
992 | softback_lines = 0; | |
993 | } | |
994 | ||
995 | /* Setup default font */ | |
996 | if (!p->fontdata) { | |
997 | if (!fontname[0] || !(font = find_font(fontname))) | |
998 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
999 | info->var.yres, |
1000 | info->pixmap.blit_x, | |
1001 | info->pixmap.blit_y); | |
1da177e4 LT |
1002 | vc->vc_font.width = font->width; |
1003 | vc->vc_font.height = font->height; | |
2f4516db | 1004 | vc->vc_font.data = (void *)(p->fontdata = font->data); |
1da177e4 LT |
1005 | vc->vc_font.charcount = 256; /* FIXME Need to support more fonts */ |
1006 | } | |
1007 | ||
e4fc2761 AD |
1008 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1009 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1010 | cols /= vc->vc_font.width; | |
1011 | rows /= vc->vc_font.height; | |
1da177e4 LT |
1012 | vc_resize(vc, cols, rows); |
1013 | ||
1014 | DPRINTK("mode: %s\n", info->fix.id); | |
1015 | DPRINTK("visual: %d\n", info->fix.visual); | |
1016 | DPRINTK("res: %dx%d-%d\n", info->var.xres, | |
1017 | info->var.yres, | |
1018 | info->var.bits_per_pixel); | |
1019 | ||
1020 | #ifdef CONFIG_ATARI | |
1021 | if (MACH_IS_ATARI) { | |
1022 | cursor_blink_rate = ATARI_CURSOR_BLINK_RATE; | |
79f0c9a0 | 1023 | (void)request_irq(IRQ_AUTO_4, fb_vbl_handler, |
1da177e4 LT |
1024 | IRQ_TYPE_PRIO, "framebuffer vbl", |
1025 | info); | |
1026 | } | |
79f0c9a0 | 1027 | #endif /* CONFIG_ATARI */ |
1da177e4 | 1028 | |
88fb2c6e | 1029 | fbcon_add_cursor_timer(info); |
e614b18d | 1030 | fbcon_has_exited = 0; |
1da177e4 LT |
1031 | return display_desc; |
1032 | } | |
1033 | ||
1034 | static void fbcon_init(struct vc_data *vc, int init) | |
1035 | { | |
1036 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1037 | struct fbcon_ops *ops; | |
1038 | struct vc_data **default_mode = vc->vc_display_fg; | |
1039 | struct vc_data *svc = *default_mode; | |
1040 | struct display *t, *p = &fb_display[vc->vc_num]; | |
1041 | int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; | |
306958e8 | 1042 | int cap; |
1da177e4 LT |
1043 | |
1044 | if (info_idx == -1 || info == NULL) | |
1045 | return; | |
306958e8 AB |
1046 | |
1047 | cap = info->flags; | |
1048 | ||
1da177e4 LT |
1049 | if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || |
1050 | (info->fix.type == FB_TYPE_TEXT)) | |
1051 | logo = 0; | |
1052 | ||
1da177e4 LT |
1053 | if (var_to_display(p, &info->var, info)) |
1054 | return; | |
1055 | ||
d1baa4ff AD |
1056 | if (!info->fbcon_par) |
1057 | con2fb_acquire_newinfo(vc, info, vc->vc_num, -1); | |
1058 | ||
1da177e4 LT |
1059 | /* If we are not the first console on this |
1060 | fb, copy the font from that console */ | |
e614b18d AD |
1061 | t = &fb_display[fg_console]; |
1062 | if (!p->fontdata) { | |
1063 | if (t->fontdata) { | |
1064 | struct vc_data *fvc = vc_cons[fg_console].d; | |
1065 | ||
1066 | vc->vc_font.data = (void *)(p->fontdata = | |
1067 | fvc->vc_font.data); | |
1068 | vc->vc_font.width = fvc->vc_font.width; | |
1069 | vc->vc_font.height = fvc->vc_font.height; | |
1070 | p->userfont = t->userfont; | |
1071 | ||
1072 | if (p->userfont) | |
1073 | REFCOUNT(p->fontdata)++; | |
1074 | } else { | |
1075 | const struct font_desc *font = NULL; | |
1076 | ||
1077 | if (!fontname[0] || !(font = find_font(fontname))) | |
1078 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1079 | info->var.yres, |
1080 | info->pixmap.blit_x, | |
1081 | info->pixmap.blit_y); | |
e614b18d AD |
1082 | vc->vc_font.width = font->width; |
1083 | vc->vc_font.height = font->height; | |
1084 | vc->vc_font.data = (void *)(p->fontdata = font->data); | |
1085 | vc->vc_font.charcount = 256; /* FIXME Need to | |
1086 | support more fonts */ | |
1087 | } | |
1da177e4 | 1088 | } |
e614b18d | 1089 | |
1da177e4 LT |
1090 | if (p->userfont) |
1091 | charcnt = FNTCHARCNT(p->fontdata); | |
e614b18d | 1092 | |
b8c90945 | 1093 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1094 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1095 | if (charcnt == 256) { | |
1096 | vc->vc_hi_font_mask = 0; | |
1097 | } else { | |
1098 | vc->vc_hi_font_mask = 0x100; | |
1099 | if (vc->vc_can_do_color) | |
1100 | vc->vc_complement_mask <<= 1; | |
1101 | } | |
1102 | ||
1103 | if (!*svc->vc_uni_pagedir_loc) | |
1104 | con_set_default_unimap(svc); | |
1105 | if (!*vc->vc_uni_pagedir_loc) | |
1106 | con_copy_unimap(vc, svc); | |
1107 | ||
e4fc2761 | 1108 | ops = info->fbcon_par; |
2428e59b | 1109 | p->con_rotate = initial_rotation; |
b73deed3 | 1110 | set_blitting_type(vc, info); |
e4fc2761 | 1111 | |
1da177e4 LT |
1112 | cols = vc->vc_cols; |
1113 | rows = vc->vc_rows; | |
e4fc2761 AD |
1114 | new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1115 | new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1116 | new_cols /= vc->vc_font.width; | |
1117 | new_rows /= vc->vc_font.height; | |
1da177e4 LT |
1118 | vc_resize(vc, new_cols, new_rows); |
1119 | ||
1da177e4 LT |
1120 | /* |
1121 | * We must always set the mode. The mode of the previous console | |
1122 | * driver could be in the same resolution but we are using different | |
1123 | * hardware so we have to initialize the hardware. | |
1124 | * | |
1125 | * We need to do it in fbcon_init() to prevent screen corruption. | |
1126 | */ | |
d354d9af | 1127 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { |
1da177e4 LT |
1128 | if (info->fbops->fb_set_par && |
1129 | !(ops->flags & FBCON_FLAGS_INIT)) | |
1130 | info->fbops->fb_set_par(info); | |
1131 | ops->flags |= FBCON_FLAGS_INIT; | |
1132 | } | |
1133 | ||
1134 | ops->graphics = 0; | |
1135 | ||
1136 | if ((cap & FBINFO_HWACCEL_COPYAREA) && | |
1137 | !(cap & FBINFO_HWACCEL_DISABLED)) | |
1138 | p->scrollmode = SCROLL_MOVE; | |
1139 | else /* default to something safe */ | |
1140 | p->scrollmode = SCROLL_REDRAW; | |
1141 | ||
1142 | /* | |
1143 | * ++guenther: console.c:vc_allocate() relies on initializing | |
1144 | * vc_{cols,rows}, but we must not set those if we are only | |
1145 | * resizing the console. | |
1146 | */ | |
1147 | if (!init) { | |
1148 | vc->vc_cols = new_cols; | |
1149 | vc->vc_rows = new_rows; | |
1150 | } | |
1151 | ||
1152 | if (logo) | |
1153 | fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); | |
1154 | ||
4d9c5b6e AD |
1155 | if (vc == svc && softback_buf) |
1156 | fbcon_update_softback(vc); | |
e4fc2761 | 1157 | |
b73deed3 | 1158 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 1159 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 1160 | set_blitting_type(vc, info); |
e4fc2761 AD |
1161 | } |
1162 | ||
1a37d5f5 | 1163 | ops->p = &fb_display[fg_console]; |
1da177e4 LT |
1164 | } |
1165 | ||
e614b18d AD |
1166 | static void fbcon_free_font(struct display *p) |
1167 | { | |
1168 | if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0)) | |
1169 | kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int)); | |
1170 | p->fontdata = NULL; | |
1171 | p->userfont = 0; | |
1172 | } | |
1173 | ||
1da177e4 LT |
1174 | static void fbcon_deinit(struct vc_data *vc) |
1175 | { | |
1176 | struct display *p = &fb_display[vc->vc_num]; | |
e614b18d AD |
1177 | struct fb_info *info; |
1178 | struct fbcon_ops *ops; | |
1179 | int idx; | |
1da177e4 | 1180 | |
1da177e4 | 1181 | fbcon_free_font(p); |
e614b18d AD |
1182 | idx = con2fb_map[vc->vc_num]; |
1183 | ||
1184 | if (idx == -1) | |
1185 | goto finished; | |
1186 | ||
1187 | info = registered_fb[idx]; | |
1188 | ||
1189 | if (!info) | |
1190 | goto finished; | |
1191 | ||
1192 | ops = info->fbcon_par; | |
1193 | ||
1194 | if (!ops) | |
1195 | goto finished; | |
1196 | ||
1197 | if (CON_IS_VISIBLE(vc)) | |
1198 | fbcon_del_cursor_timer(info); | |
1199 | ||
1200 | ops->flags &= ~FBCON_FLAGS_INIT; | |
1201 | finished: | |
1202 | ||
1203 | if (!con_is_bound(&fb_con)) | |
1204 | fbcon_exit(); | |
1205 | ||
1206 | return; | |
1da177e4 LT |
1207 | } |
1208 | ||
1209 | /* ====================================================================== */ | |
1210 | ||
1211 | /* fbcon_XXX routines - interface used by the world | |
1212 | * | |
1213 | * This system is now divided into two levels because of complications | |
1214 | * caused by hardware scrolling. Top level functions: | |
1215 | * | |
1216 | * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins() | |
1217 | * | |
1218 | * handles y values in range [0, scr_height-1] that correspond to real | |
1219 | * screen positions. y_wrap shift means that first line of bitmap may be | |
1220 | * anywhere on this display. These functions convert lineoffsets to | |
1221 | * bitmap offsets and deal with the wrap-around case by splitting blits. | |
1222 | * | |
1223 | * fbcon_bmove_physical_8() -- These functions fast implementations | |
1224 | * fbcon_clear_physical_8() -- of original fbcon_XXX fns. | |
1225 | * fbcon_putc_physical_8() -- (font width != 8) may be added later | |
1226 | * | |
1227 | * WARNING: | |
1228 | * | |
1229 | * At the moment fbcon_putc() cannot blit across vertical wrap boundary | |
1230 | * Implies should only really hardware scroll in rows. Only reason for | |
1231 | * restriction is simplicity & efficiency at the moment. | |
1232 | */ | |
1233 | ||
1da177e4 LT |
1234 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, |
1235 | int width) | |
1236 | { | |
1237 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1238 | struct fbcon_ops *ops = info->fbcon_par; | |
1239 | ||
1240 | struct display *p = &fb_display[vc->vc_num]; | |
1241 | u_int y_break; | |
1242 | ||
1243 | if (fbcon_is_inactive(vc, info)) | |
1244 | return; | |
1245 | ||
1246 | if (!height || !width) | |
1247 | return; | |
1248 | ||
c213ddf3 KH |
1249 | if (sy < vc->vc_top && vc->vc_top == logo_lines) |
1250 | vc->vc_top = 0; | |
1251 | ||
1da177e4 LT |
1252 | /* Split blits that cross physical y_wrap boundary */ |
1253 | ||
1254 | y_break = p->vrows - p->yscroll; | |
1255 | if (sy < y_break && sy + height - 1 >= y_break) { | |
1256 | u_int b = y_break - sy; | |
1257 | ops->clear(vc, info, real_y(p, sy), sx, b, width); | |
1258 | ops->clear(vc, info, real_y(p, sy + b), sx, height - b, | |
1259 | width); | |
1260 | } else | |
1261 | ops->clear(vc, info, real_y(p, sy), sx, height, width); | |
1262 | } | |
1263 | ||
1264 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
1265 | int count, int ypos, int xpos) | |
1266 | { | |
1267 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1268 | struct display *p = &fb_display[vc->vc_num]; | |
1269 | struct fbcon_ops *ops = info->fbcon_par; | |
1270 | ||
1271 | if (!fbcon_is_inactive(vc, info)) | |
1272 | ops->putcs(vc, info, s, count, real_y(p, ypos), xpos, | |
1273 | get_color(vc, info, scr_readw(s), 1), | |
1274 | get_color(vc, info, scr_readw(s), 0)); | |
1275 | } | |
1276 | ||
1277 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos) | |
1278 | { | |
1279 | unsigned short chr; | |
1280 | ||
1281 | scr_writew(c, &chr); | |
1282 | fbcon_putcs(vc, &chr, 1, ypos, xpos); | |
1283 | } | |
1284 | ||
1285 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) | |
1286 | { | |
1287 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1288 | struct fbcon_ops *ops = info->fbcon_par; | |
1289 | ||
1290 | if (!fbcon_is_inactive(vc, info)) | |
1291 | ops->clear_margins(vc, info, bottom_only); | |
1292 | } | |
1293 | ||
1294 | static void fbcon_cursor(struct vc_data *vc, int mode) | |
1295 | { | |
1296 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1297 | struct fbcon_ops *ops = info->fbcon_par; | |
1da177e4 LT |
1298 | int y; |
1299 | int c = scr_readw((u16 *) vc->vc_pos); | |
1300 | ||
d1e23066 | 1301 | if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1) |
1da177e4 LT |
1302 | return; |
1303 | ||
acba9cd0 AD |
1304 | if (vc->vc_cursor_type & 0x10) |
1305 | fbcon_del_cursor_timer(info); | |
1306 | else | |
1307 | fbcon_add_cursor_timer(info); | |
1308 | ||
1da177e4 LT |
1309 | ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; |
1310 | if (mode & CM_SOFTBACK) { | |
1311 | mode &= ~CM_SOFTBACK; | |
1312 | y = softback_lines; | |
1313 | } else { | |
1314 | if (softback_lines) | |
1315 | fbcon_set_origin(vc); | |
1316 | y = 0; | |
1317 | } | |
1318 | ||
b73deed3 | 1319 | ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1), |
1da177e4 LT |
1320 | get_color(vc, info, c, 0)); |
1321 | vbl_cursor_cnt = CURSOR_DRAW_DELAY; | |
1322 | } | |
1323 | ||
1324 | static int scrollback_phys_max = 0; | |
1325 | static int scrollback_max = 0; | |
1326 | static int scrollback_current = 0; | |
1327 | ||
1da177e4 | 1328 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, |
d1baa4ff | 1329 | int unit) |
1da177e4 | 1330 | { |
d1baa4ff AD |
1331 | struct display *p, *t; |
1332 | struct vc_data **default_mode, *vc; | |
1333 | struct vc_data *svc; | |
e4fc2761 | 1334 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1335 | int rows, cols, charcnt = 256; |
1336 | ||
d1baa4ff AD |
1337 | p = &fb_display[unit]; |
1338 | ||
1da177e4 LT |
1339 | if (var_to_display(p, var, info)) |
1340 | return; | |
d1baa4ff AD |
1341 | |
1342 | vc = vc_cons[unit].d; | |
1343 | ||
1344 | if (!vc) | |
1345 | return; | |
1346 | ||
1347 | default_mode = vc->vc_display_fg; | |
1348 | svc = *default_mode; | |
1da177e4 | 1349 | t = &fb_display[svc->vc_num]; |
d1baa4ff | 1350 | |
1da177e4 | 1351 | if (!vc->vc_font.data) { |
2f4516db | 1352 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1353 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1354 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1355 | p->userfont = t->userfont; | |
1356 | if (p->userfont) | |
1357 | REFCOUNT(p->fontdata)++; | |
1358 | } | |
1359 | if (p->userfont) | |
1360 | charcnt = FNTCHARCNT(p->fontdata); | |
1361 | ||
b8c90945 AD |
1362 | var->activate = FB_ACTIVATE_NOW; |
1363 | info->var.activate = var->activate; | |
e4fc2761 AD |
1364 | var->yoffset = info->var.yoffset; |
1365 | var->xoffset = info->var.xoffset; | |
b8c90945 | 1366 | fb_set_var(info, var); |
e4fc2761 | 1367 | ops->var = info->var; |
b8c90945 | 1368 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1369 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1370 | if (charcnt == 256) { | |
1371 | vc->vc_hi_font_mask = 0; | |
1372 | } else { | |
1373 | vc->vc_hi_font_mask = 0x100; | |
1374 | if (vc->vc_can_do_color) | |
1375 | vc->vc_complement_mask <<= 1; | |
1376 | } | |
1377 | ||
1378 | if (!*svc->vc_uni_pagedir_loc) | |
1379 | con_set_default_unimap(svc); | |
1380 | if (!*vc->vc_uni_pagedir_loc) | |
1381 | con_copy_unimap(vc, svc); | |
1382 | ||
e4fc2761 AD |
1383 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1384 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1385 | cols /= vc->vc_font.width; | |
1386 | rows /= vc->vc_font.height; | |
1da177e4 | 1387 | vc_resize(vc, cols, rows); |
e4fc2761 | 1388 | |
1da177e4 LT |
1389 | if (CON_IS_VISIBLE(vc)) { |
1390 | update_screen(vc); | |
4d9c5b6e AD |
1391 | if (softback_buf) |
1392 | fbcon_update_softback(vc); | |
1da177e4 LT |
1393 | } |
1394 | } | |
1395 | ||
1396 | static __inline__ void ywrap_up(struct vc_data *vc, int count) | |
1397 | { | |
1398 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1399 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1400 | struct display *p = &fb_display[vc->vc_num]; |
1401 | ||
1402 | p->yscroll += count; | |
1403 | if (p->yscroll >= p->vrows) /* Deal with wrap */ | |
1404 | p->yscroll -= p->vrows; | |
e4fc2761 AD |
1405 | ops->var.xoffset = 0; |
1406 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1407 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1408 | ops->update_start(info); | |
1da177e4 LT |
1409 | scrollback_max += count; |
1410 | if (scrollback_max > scrollback_phys_max) | |
1411 | scrollback_max = scrollback_phys_max; | |
1412 | scrollback_current = 0; | |
1413 | } | |
1414 | ||
1415 | static __inline__ void ywrap_down(struct vc_data *vc, int count) | |
1416 | { | |
1417 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1418 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1419 | struct display *p = &fb_display[vc->vc_num]; |
1420 | ||
1421 | p->yscroll -= count; | |
1422 | if (p->yscroll < 0) /* Deal with wrap */ | |
1423 | p->yscroll += p->vrows; | |
e4fc2761 AD |
1424 | ops->var.xoffset = 0; |
1425 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1426 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1427 | ops->update_start(info); | |
1da177e4 LT |
1428 | scrollback_max -= count; |
1429 | if (scrollback_max < 0) | |
1430 | scrollback_max = 0; | |
1431 | scrollback_current = 0; | |
1432 | } | |
1433 | ||
1434 | static __inline__ void ypan_up(struct vc_data *vc, int count) | |
1435 | { | |
1436 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1437 | struct display *p = &fb_display[vc->vc_num]; | |
1438 | struct fbcon_ops *ops = info->fbcon_par; | |
1439 | ||
1440 | p->yscroll += count; | |
1441 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1442 | ops->bmove(vc, info, p->vrows - vc->vc_rows, | |
1443 | 0, 0, 0, vc->vc_rows, vc->vc_cols); | |
1444 | p->yscroll -= p->vrows - vc->vc_rows; | |
1445 | } | |
e4fc2761 AD |
1446 | |
1447 | ops->var.xoffset = 0; | |
1448 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1449 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1450 | ops->update_start(info); | |
1da177e4 LT |
1451 | fbcon_clear_margins(vc, 1); |
1452 | scrollback_max += count; | |
1453 | if (scrollback_max > scrollback_phys_max) | |
1454 | scrollback_max = scrollback_phys_max; | |
1455 | scrollback_current = 0; | |
1456 | } | |
1457 | ||
1458 | static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count) | |
1459 | { | |
1460 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1461 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1462 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1463 | |
1464 | p->yscroll += count; | |
a39bc34e | 1465 | |
1da177e4 LT |
1466 | if (p->yscroll > p->vrows - vc->vc_rows) { |
1467 | p->yscroll -= p->vrows - vc->vc_rows; | |
1da177e4 | 1468 | fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t); |
a39bc34e | 1469 | } |
e4fc2761 AD |
1470 | |
1471 | ops->var.xoffset = 0; | |
1472 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1473 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1474 | ops->update_start(info); | |
1da177e4 LT |
1475 | fbcon_clear_margins(vc, 1); |
1476 | scrollback_max += count; | |
1477 | if (scrollback_max > scrollback_phys_max) | |
1478 | scrollback_max = scrollback_phys_max; | |
1479 | scrollback_current = 0; | |
1480 | } | |
1481 | ||
1482 | static __inline__ void ypan_down(struct vc_data *vc, int count) | |
1483 | { | |
1484 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1485 | struct display *p = &fb_display[vc->vc_num]; | |
1486 | struct fbcon_ops *ops = info->fbcon_par; | |
1487 | ||
1488 | p->yscroll -= count; | |
1489 | if (p->yscroll < 0) { | |
1490 | ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows, | |
1491 | 0, vc->vc_rows, vc->vc_cols); | |
1492 | p->yscroll += p->vrows - vc->vc_rows; | |
1493 | } | |
e4fc2761 AD |
1494 | |
1495 | ops->var.xoffset = 0; | |
1496 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1497 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1498 | ops->update_start(info); | |
1da177e4 LT |
1499 | fbcon_clear_margins(vc, 1); |
1500 | scrollback_max -= count; | |
1501 | if (scrollback_max < 0) | |
1502 | scrollback_max = 0; | |
1503 | scrollback_current = 0; | |
1504 | } | |
1505 | ||
1506 | static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) | |
1507 | { | |
1508 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1509 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1510 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1511 | |
1512 | p->yscroll -= count; | |
a39bc34e | 1513 | |
1da177e4 LT |
1514 | if (p->yscroll < 0) { |
1515 | p->yscroll += p->vrows - vc->vc_rows; | |
1da177e4 | 1516 | fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count); |
a39bc34e | 1517 | } |
e4fc2761 AD |
1518 | |
1519 | ops->var.xoffset = 0; | |
1520 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1521 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1522 | ops->update_start(info); | |
1da177e4 LT |
1523 | fbcon_clear_margins(vc, 1); |
1524 | scrollback_max -= count; | |
1525 | if (scrollback_max < 0) | |
1526 | scrollback_max = 0; | |
1527 | scrollback_current = 0; | |
1528 | } | |
1529 | ||
1530 | static void fbcon_redraw_softback(struct vc_data *vc, struct display *p, | |
1531 | long delta) | |
1532 | { | |
1533 | int count = vc->vc_rows; | |
1534 | unsigned short *d, *s; | |
1535 | unsigned long n; | |
1536 | int line = 0; | |
1537 | ||
1538 | d = (u16 *) softback_curr; | |
1539 | if (d == (u16 *) softback_in) | |
1540 | d = (u16 *) vc->vc_origin; | |
1541 | n = softback_curr + delta * vc->vc_size_row; | |
1542 | softback_lines -= delta; | |
1543 | if (delta < 0) { | |
1544 | if (softback_curr < softback_top && n < softback_buf) { | |
1545 | n += softback_end - softback_buf; | |
1546 | if (n < softback_top) { | |
1547 | softback_lines -= | |
1548 | (softback_top - n) / vc->vc_size_row; | |
1549 | n = softback_top; | |
1550 | } | |
1551 | } else if (softback_curr >= softback_top | |
1552 | && n < softback_top) { | |
1553 | softback_lines -= | |
1554 | (softback_top - n) / vc->vc_size_row; | |
1555 | n = softback_top; | |
1556 | } | |
1557 | } else { | |
1558 | if (softback_curr > softback_in && n >= softback_end) { | |
1559 | n += softback_buf - softback_end; | |
1560 | if (n > softback_in) { | |
1561 | n = softback_in; | |
1562 | softback_lines = 0; | |
1563 | } | |
1564 | } else if (softback_curr <= softback_in && n > softback_in) { | |
1565 | n = softback_in; | |
1566 | softback_lines = 0; | |
1567 | } | |
1568 | } | |
1569 | if (n == softback_curr) | |
1570 | return; | |
1571 | softback_curr = n; | |
1572 | s = (u16 *) softback_curr; | |
1573 | if (s == (u16 *) softback_in) | |
1574 | s = (u16 *) vc->vc_origin; | |
1575 | while (count--) { | |
1576 | unsigned short *start; | |
1577 | unsigned short *le; | |
1578 | unsigned short c; | |
1579 | int x = 0; | |
1580 | unsigned short attr = 1; | |
1581 | ||
1582 | start = s; | |
1583 | le = advance_row(s, 1); | |
1584 | do { | |
1585 | c = scr_readw(s); | |
1586 | if (attr != (c & 0xff00)) { | |
1587 | attr = c & 0xff00; | |
1588 | if (s > start) { | |
1589 | fbcon_putcs(vc, start, s - start, | |
1590 | line, x); | |
1591 | x += s - start; | |
1592 | start = s; | |
1593 | } | |
1594 | } | |
1595 | if (c == scr_readw(d)) { | |
1596 | if (s > start) { | |
1597 | fbcon_putcs(vc, start, s - start, | |
1598 | line, x); | |
1599 | x += s - start + 1; | |
1600 | start = s + 1; | |
1601 | } else { | |
1602 | x++; | |
1603 | start++; | |
1604 | } | |
1605 | } | |
1606 | s++; | |
1607 | d++; | |
1608 | } while (s < le); | |
1609 | if (s > start) | |
1610 | fbcon_putcs(vc, start, s - start, line, x); | |
1611 | line++; | |
1612 | if (d == (u16 *) softback_end) | |
1613 | d = (u16 *) softback_buf; | |
1614 | if (d == (u16 *) softback_in) | |
1615 | d = (u16 *) vc->vc_origin; | |
1616 | if (s == (u16 *) softback_end) | |
1617 | s = (u16 *) softback_buf; | |
1618 | if (s == (u16 *) softback_in) | |
1619 | s = (u16 *) vc->vc_origin; | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
1624 | int line, int count, int dy) | |
1625 | { | |
1626 | unsigned short *s = (unsigned short *) | |
1627 | (vc->vc_origin + vc->vc_size_row * line); | |
1628 | ||
1629 | while (count--) { | |
1630 | unsigned short *start = s; | |
1631 | unsigned short *le = advance_row(s, 1); | |
1632 | unsigned short c; | |
1633 | int x = 0; | |
1634 | unsigned short attr = 1; | |
1635 | ||
1636 | do { | |
1637 | c = scr_readw(s); | |
1638 | if (attr != (c & 0xff00)) { | |
1639 | attr = c & 0xff00; | |
1640 | if (s > start) { | |
1641 | fbcon_putcs(vc, start, s - start, | |
1642 | dy, x); | |
1643 | x += s - start; | |
1644 | start = s; | |
1645 | } | |
1646 | } | |
1647 | console_conditional_schedule(); | |
1648 | s++; | |
1649 | } while (s < le); | |
1650 | if (s > start) | |
1651 | fbcon_putcs(vc, start, s - start, dy, x); | |
1652 | console_conditional_schedule(); | |
1653 | dy++; | |
1654 | } | |
1655 | } | |
1656 | ||
bad07ff7 KH |
1657 | static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info, |
1658 | struct display *p, int line, int count, int ycount) | |
1659 | { | |
1660 | int offset = ycount * vc->vc_cols; | |
1661 | unsigned short *d = (unsigned short *) | |
1662 | (vc->vc_origin + vc->vc_size_row * line); | |
1663 | unsigned short *s = d + offset; | |
1664 | struct fbcon_ops *ops = info->fbcon_par; | |
1665 | ||
1666 | while (count--) { | |
1667 | unsigned short *start = s; | |
1668 | unsigned short *le = advance_row(s, 1); | |
1669 | unsigned short c; | |
1670 | int x = 0; | |
1671 | ||
1672 | do { | |
1673 | c = scr_readw(s); | |
1674 | ||
1675 | if (c == scr_readw(d)) { | |
1676 | if (s > start) { | |
1677 | ops->bmove(vc, info, line + ycount, x, | |
1678 | line, x, 1, s-start); | |
1679 | x += s - start + 1; | |
1680 | start = s + 1; | |
1681 | } else { | |
1682 | x++; | |
1683 | start++; | |
1684 | } | |
1685 | } | |
1686 | ||
1687 | scr_writew(c, d); | |
1688 | console_conditional_schedule(); | |
1689 | s++; | |
1690 | d++; | |
1691 | } while (s < le); | |
1692 | if (s > start) | |
1693 | ops->bmove(vc, info, line + ycount, x, line, x, 1, | |
1694 | s-start); | |
1695 | console_conditional_schedule(); | |
1696 | if (ycount > 0) | |
1697 | line++; | |
1698 | else { | |
1699 | line--; | |
1700 | /* NOTE: We subtract two lines from these pointers */ | |
1701 | s -= vc->vc_size_row; | |
1702 | d -= vc->vc_size_row; | |
1703 | } | |
1704 | } | |
1705 | } | |
1706 | ||
1da177e4 LT |
1707 | static void fbcon_redraw(struct vc_data *vc, struct display *p, |
1708 | int line, int count, int offset) | |
1709 | { | |
1710 | unsigned short *d = (unsigned short *) | |
1711 | (vc->vc_origin + vc->vc_size_row * line); | |
1712 | unsigned short *s = d + offset; | |
1713 | ||
1714 | while (count--) { | |
1715 | unsigned short *start = s; | |
1716 | unsigned short *le = advance_row(s, 1); | |
1717 | unsigned short c; | |
1718 | int x = 0; | |
1719 | unsigned short attr = 1; | |
1720 | ||
1721 | do { | |
1722 | c = scr_readw(s); | |
1723 | if (attr != (c & 0xff00)) { | |
1724 | attr = c & 0xff00; | |
1725 | if (s > start) { | |
1726 | fbcon_putcs(vc, start, s - start, | |
1727 | line, x); | |
1728 | x += s - start; | |
1729 | start = s; | |
1730 | } | |
1731 | } | |
1732 | if (c == scr_readw(d)) { | |
1733 | if (s > start) { | |
1734 | fbcon_putcs(vc, start, s - start, | |
1735 | line, x); | |
1736 | x += s - start + 1; | |
1737 | start = s + 1; | |
1738 | } else { | |
1739 | x++; | |
1740 | start++; | |
1741 | } | |
1742 | } | |
1743 | scr_writew(c, d); | |
1744 | console_conditional_schedule(); | |
1745 | s++; | |
1746 | d++; | |
1747 | } while (s < le); | |
1748 | if (s > start) | |
1749 | fbcon_putcs(vc, start, s - start, line, x); | |
1750 | console_conditional_schedule(); | |
1751 | if (offset > 0) | |
1752 | line++; | |
1753 | else { | |
1754 | line--; | |
1755 | /* NOTE: We subtract two lines from these pointers */ | |
1756 | s -= vc->vc_size_row; | |
1757 | d -= vc->vc_size_row; | |
1758 | } | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | static inline void fbcon_softback_note(struct vc_data *vc, int t, | |
1763 | int count) | |
1764 | { | |
1765 | unsigned short *p; | |
1766 | ||
1767 | if (vc->vc_num != fg_console) | |
1768 | return; | |
1769 | p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); | |
1770 | ||
1771 | while (count) { | |
1772 | scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); | |
1773 | count--; | |
1774 | p = advance_row(p, 1); | |
1775 | softback_in += vc->vc_size_row; | |
1776 | if (softback_in == softback_end) | |
1777 | softback_in = softback_buf; | |
1778 | if (softback_in == softback_top) { | |
1779 | softback_top += vc->vc_size_row; | |
1780 | if (softback_top == softback_end) | |
1781 | softback_top = softback_buf; | |
1782 | } | |
1783 | } | |
1784 | softback_curr = softback_in; | |
1785 | } | |
1786 | ||
1787 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
1788 | int count) | |
1789 | { | |
1790 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1791 | struct display *p = &fb_display[vc->vc_num]; | |
1da177e4 LT |
1792 | int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; |
1793 | ||
1794 | if (fbcon_is_inactive(vc, info)) | |
1795 | return -EINVAL; | |
1796 | ||
1797 | fbcon_cursor(vc, CM_ERASE); | |
1798 | ||
1799 | /* | |
1800 | * ++Geert: Only use ywrap/ypan if the console is in text mode | |
1801 | * ++Andrew: Only use ypan on hardware text mode when scrolling the | |
1802 | * whole screen (prevents flicker). | |
1803 | */ | |
1804 | ||
1805 | switch (dir) { | |
1806 | case SM_UP: | |
1807 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1808 | count = vc->vc_rows; | |
1809 | if (softback_top) | |
1810 | fbcon_softback_note(vc, t, count); | |
1811 | if (logo_shown >= 0) | |
1812 | goto redraw_up; | |
1813 | switch (p->scrollmode) { | |
1814 | case SCROLL_MOVE: | |
bad07ff7 KH |
1815 | fbcon_redraw_blit(vc, info, p, t, b - t - count, |
1816 | count); | |
1817 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1818 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1819 | vc->vc_size_row * | |
1820 | (b - count)), | |
93f78da4 | 1821 | vc->vc_video_erase_char, |
bad07ff7 | 1822 | vc->vc_size_row * count); |
93f78da4 | 1823 | return 1; |
1da177e4 LT |
1824 | break; |
1825 | ||
1826 | case SCROLL_WRAP_MOVE: | |
1827 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1828 | if (t > 0) | |
1829 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1830 | vc->vc_cols); | |
1831 | ywrap_up(vc, count); | |
1832 | if (vc->vc_rows - b > 0) | |
1833 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1834 | vc->vc_rows - b, | |
1835 | vc->vc_cols); | |
1836 | } else if (info->flags & FBINFO_READS_FAST) | |
1837 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1838 | b - t - count, vc->vc_cols); | |
1839 | else | |
1840 | goto redraw_up; | |
1841 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1842 | break; | |
1843 | ||
1844 | case SCROLL_PAN_REDRAW: | |
1845 | if ((p->yscroll + count <= | |
1846 | 2 * (p->vrows - vc->vc_rows)) | |
1847 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1848 | || (scroll_partial | |
1849 | && (b - t - count > | |
1850 | 3 * vc->vc_rows >> 2)))) { | |
1851 | if (t > 0) | |
1852 | fbcon_redraw_move(vc, p, 0, t, count); | |
1853 | ypan_up_redraw(vc, t, count); | |
1854 | if (vc->vc_rows - b > 0) | |
26e780e8 | 1855 | fbcon_redraw_move(vc, p, b, |
1da177e4 LT |
1856 | vc->vc_rows - b, b); |
1857 | } else | |
1858 | fbcon_redraw_move(vc, p, t + count, b - t - count, t); | |
1859 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1860 | break; | |
1861 | ||
1862 | case SCROLL_PAN_MOVE: | |
1863 | if ((p->yscroll + count <= | |
1864 | 2 * (p->vrows - vc->vc_rows)) | |
1865 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1866 | || (scroll_partial | |
1867 | && (b - t - count > | |
1868 | 3 * vc->vc_rows >> 2)))) { | |
1869 | if (t > 0) | |
1870 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1871 | vc->vc_cols); | |
1872 | ypan_up(vc, count); | |
1873 | if (vc->vc_rows - b > 0) | |
1874 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1875 | vc->vc_rows - b, | |
1876 | vc->vc_cols); | |
1877 | } else if (info->flags & FBINFO_READS_FAST) | |
1878 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1879 | b - t - count, vc->vc_cols); | |
1880 | else | |
1881 | goto redraw_up; | |
1882 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1883 | break; | |
1884 | ||
1885 | case SCROLL_REDRAW: | |
1886 | redraw_up: | |
1887 | fbcon_redraw(vc, p, t, b - t - count, | |
1888 | count * vc->vc_cols); | |
1889 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1890 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1891 | vc->vc_size_row * | |
1892 | (b - count)), | |
93f78da4 | 1893 | vc->vc_video_erase_char, |
1da177e4 | 1894 | vc->vc_size_row * count); |
93f78da4 | 1895 | return 1; |
1da177e4 LT |
1896 | } |
1897 | break; | |
1898 | ||
1899 | case SM_DOWN: | |
1900 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1901 | count = vc->vc_rows; | |
e703ecc3 JB |
1902 | if (logo_shown >= 0) |
1903 | goto redraw_down; | |
1da177e4 LT |
1904 | switch (p->scrollmode) { |
1905 | case SCROLL_MOVE: | |
bad07ff7 KH |
1906 | fbcon_redraw_blit(vc, info, p, b - 1, b - t - count, |
1907 | -count); | |
1908 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1909 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1910 | vc->vc_size_row * | |
1911 | t), | |
93f78da4 | 1912 | vc->vc_video_erase_char, |
bad07ff7 | 1913 | vc->vc_size_row * count); |
93f78da4 | 1914 | return 1; |
1da177e4 LT |
1915 | break; |
1916 | ||
1917 | case SCROLL_WRAP_MOVE: | |
1918 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1919 | if (vc->vc_rows - b > 0) | |
1920 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1921 | vc->vc_rows - b, | |
1922 | vc->vc_cols); | |
1923 | ywrap_down(vc, count); | |
1924 | if (t > 0) | |
1925 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1926 | vc->vc_cols); | |
1927 | } else if (info->flags & FBINFO_READS_FAST) | |
1928 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1929 | b - t - count, vc->vc_cols); | |
1930 | else | |
1931 | goto redraw_down; | |
1932 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1933 | break; | |
1934 | ||
1935 | case SCROLL_PAN_MOVE: | |
1936 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1937 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1938 | || (scroll_partial | |
1939 | && (b - t - count > | |
1940 | 3 * vc->vc_rows >> 2)))) { | |
1941 | if (vc->vc_rows - b > 0) | |
1942 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1943 | vc->vc_rows - b, | |
1944 | vc->vc_cols); | |
1945 | ypan_down(vc, count); | |
1946 | if (t > 0) | |
1947 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1948 | vc->vc_cols); | |
1949 | } else if (info->flags & FBINFO_READS_FAST) | |
1950 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1951 | b - t - count, vc->vc_cols); | |
1952 | else | |
1953 | goto redraw_down; | |
1954 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1955 | break; | |
1956 | ||
1957 | case SCROLL_PAN_REDRAW: | |
1958 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1959 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1960 | || (scroll_partial | |
1961 | && (b - t - count > | |
1962 | 3 * vc->vc_rows >> 2)))) { | |
1963 | if (vc->vc_rows - b > 0) | |
1964 | fbcon_redraw_move(vc, p, b, vc->vc_rows - b, | |
1965 | b - count); | |
1966 | ypan_down_redraw(vc, t, count); | |
1967 | if (t > 0) | |
1968 | fbcon_redraw_move(vc, p, count, t, 0); | |
1969 | } else | |
1970 | fbcon_redraw_move(vc, p, t, b - t - count, t + count); | |
1971 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1972 | break; | |
1973 | ||
1974 | case SCROLL_REDRAW: | |
1975 | redraw_down: | |
1976 | fbcon_redraw(vc, p, b - 1, b - t - count, | |
1977 | -count * vc->vc_cols); | |
1978 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1979 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1980 | vc->vc_size_row * | |
1981 | t), | |
93f78da4 | 1982 | vc->vc_video_erase_char, |
1da177e4 | 1983 | vc->vc_size_row * count); |
93f78da4 | 1984 | return 1; |
1da177e4 LT |
1985 | } |
1986 | } | |
93f78da4 | 1987 | return 0; |
1da177e4 LT |
1988 | } |
1989 | ||
1990 | ||
1991 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
1992 | int height, int width) | |
1993 | { | |
1994 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1995 | struct display *p = &fb_display[vc->vc_num]; | |
1996 | ||
1997 | if (fbcon_is_inactive(vc, info)) | |
1998 | return; | |
1999 | ||
2000 | if (!width || !height) | |
2001 | return; | |
2002 | ||
2003 | /* Split blits that cross physical y_wrap case. | |
2004 | * Pathological case involves 4 blits, better to use recursive | |
2005 | * code rather than unrolled case | |
2006 | * | |
2007 | * Recursive invocations don't need to erase the cursor over and | |
2008 | * over again, so we use fbcon_bmove_rec() | |
2009 | */ | |
2010 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width, | |
2011 | p->vrows - p->yscroll); | |
2012 | } | |
2013 | ||
2014 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
2015 | int dy, int dx, int height, int width, u_int y_break) | |
2016 | { | |
2017 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2018 | struct fbcon_ops *ops = info->fbcon_par; | |
2019 | u_int b; | |
2020 | ||
2021 | if (sy < y_break && sy + height > y_break) { | |
2022 | b = y_break - sy; | |
2023 | if (dy < sy) { /* Avoid trashing self */ | |
2024 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2025 | y_break); | |
2026 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2027 | height - b, width, y_break); | |
2028 | } else { | |
2029 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2030 | height - b, width, y_break); | |
2031 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2032 | y_break); | |
2033 | } | |
2034 | return; | |
2035 | } | |
2036 | ||
2037 | if (dy < y_break && dy + height > y_break) { | |
2038 | b = y_break - dy; | |
2039 | if (dy < sy) { /* Avoid trashing self */ | |
2040 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2041 | y_break); | |
2042 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2043 | height - b, width, y_break); | |
2044 | } else { | |
2045 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2046 | height - b, width, y_break); | |
2047 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2048 | y_break); | |
2049 | } | |
2050 | return; | |
2051 | } | |
2052 | ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx, | |
2053 | height, width); | |
2054 | } | |
2055 | ||
def1be2d | 2056 | static void updatescrollmode(struct display *p, |
e4fc2761 | 2057 | struct fb_info *info, |
1da177e4 LT |
2058 | struct vc_data *vc) |
2059 | { | |
e4fc2761 | 2060 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2061 | int fh = vc->vc_font.height; |
2062 | int cap = info->flags; | |
e4fc2761 AD |
2063 | u16 t = 0; |
2064 | int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep, | |
2065 | info->fix.xpanstep); | |
2066 | int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t); | |
2067 | int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2068 | int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual, | |
2069 | info->var.xres_virtual); | |
2070 | int good_pan = (cap & FBINFO_HWACCEL_YPAN) && | |
2071 | divides(ypan, vc->vc_font.height) && vyres > yres; | |
2072 | int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) && | |
2073 | divides(ywrap, vc->vc_font.height) && | |
244ab72d KP |
2074 | divides(vc->vc_font.height, vyres) && |
2075 | divides(vc->vc_font.height, yres); | |
1da177e4 | 2076 | int reading_fast = cap & FBINFO_READS_FAST; |
e4fc2761 AD |
2077 | int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) && |
2078 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2079 | int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) && | |
2080 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2081 | ||
2082 | p->vrows = vyres/fh; | |
2083 | if (yres > (fh * (vc->vc_rows + 1))) | |
2084 | p->vrows -= (yres - (fh * vc->vc_rows)) / fh; | |
2085 | if ((yres % fh) && (vyres % fh < yres % fh)) | |
1da177e4 LT |
2086 | p->vrows--; |
2087 | ||
2088 | if (good_wrap || good_pan) { | |
2089 | if (reading_fast || fast_copyarea) | |
e4fc2761 AD |
2090 | p->scrollmode = good_wrap ? |
2091 | SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE; | |
1da177e4 LT |
2092 | else |
2093 | p->scrollmode = good_wrap ? SCROLL_REDRAW : | |
2094 | SCROLL_PAN_REDRAW; | |
2095 | } else { | |
2096 | if (reading_fast || (fast_copyarea && !fast_imageblit)) | |
2097 | p->scrollmode = SCROLL_MOVE; | |
2098 | else | |
2099 | p->scrollmode = SCROLL_REDRAW; | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | static int fbcon_resize(struct vc_data *vc, unsigned int width, | |
e400b6ec | 2104 | unsigned int height, unsigned int user) |
1da177e4 LT |
2105 | { |
2106 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2107 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2108 | struct display *p = &fb_display[vc->vc_num]; |
2109 | struct fb_var_screeninfo var = info->var; | |
e4fc2761 AD |
2110 | int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; |
2111 | ||
2112 | virt_w = FBCON_SWAP(ops->rotate, width, height); | |
2113 | virt_h = FBCON_SWAP(ops->rotate, height, width); | |
2114 | virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, | |
2115 | vc->vc_font.height); | |
2116 | virt_fh = FBCON_SWAP(ops->rotate, vc->vc_font.height, | |
2117 | vc->vc_font.width); | |
2118 | var.xres = virt_w * virt_fw; | |
2119 | var.yres = virt_h * virt_fh; | |
1da177e4 LT |
2120 | x_diff = info->var.xres - var.xres; |
2121 | y_diff = info->var.yres - var.yres; | |
e4fc2761 AD |
2122 | if (x_diff < 0 || x_diff > virt_fw || |
2123 | y_diff < 0 || y_diff > virt_fh) { | |
9791d763 | 2124 | const struct fb_videomode *mode; |
1da177e4 LT |
2125 | |
2126 | DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); | |
2127 | mode = fb_find_best_mode(&var, &info->modelist); | |
2128 | if (mode == NULL) | |
2129 | return -EINVAL; | |
3084a895 | 2130 | display_to_var(&var, p); |
1da177e4 | 2131 | fb_videomode_to_var(&var, mode); |
3084a895 | 2132 | |
e4fc2761 | 2133 | if (virt_w > var.xres/virt_fw || virt_h > var.yres/virt_fh) |
1da177e4 | 2134 | return -EINVAL; |
1da177e4 LT |
2135 | |
2136 | DPRINTK("resize now %ix%i\n", var.xres, var.yres); | |
2137 | if (CON_IS_VISIBLE(vc)) { | |
2138 | var.activate = FB_ACTIVATE_NOW | | |
2139 | FB_ACTIVATE_FORCE; | |
2140 | fb_set_var(info, &var); | |
2141 | } | |
2142 | var_to_display(p, &info->var, info); | |
e4fc2761 | 2143 | ops->var = info->var; |
1da177e4 LT |
2144 | } |
2145 | updatescrollmode(p, info, vc); | |
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | static int fbcon_switch(struct vc_data *vc) | |
2150 | { | |
88fb2c6e | 2151 | struct fb_info *info, *old_info = NULL; |
e4fc2761 | 2152 | struct fbcon_ops *ops; |
1da177e4 LT |
2153 | struct display *p = &fb_display[vc->vc_num]; |
2154 | struct fb_var_screeninfo var; | |
56f0d64d | 2155 | int i, prev_console, charcnt = 256; |
1da177e4 LT |
2156 | |
2157 | info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2158 | ops = info->fbcon_par; |
1da177e4 LT |
2159 | |
2160 | if (softback_top) { | |
1da177e4 LT |
2161 | if (softback_lines) |
2162 | fbcon_set_origin(vc); | |
2163 | softback_top = softback_curr = softback_in = softback_buf; | |
2164 | softback_lines = 0; | |
4d9c5b6e | 2165 | fbcon_update_softback(vc); |
1da177e4 LT |
2166 | } |
2167 | ||
2168 | if (logo_shown >= 0) { | |
2169 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2170 | ||
2171 | if (conp2->vc_top == logo_lines | |
2172 | && conp2->vc_bottom == conp2->vc_rows) | |
2173 | conp2->vc_top = 0; | |
2174 | logo_shown = FBCON_LOGO_CANSHOW; | |
2175 | } | |
2176 | ||
e4fc2761 | 2177 | prev_console = ops->currcon; |
88fb2c6e AD |
2178 | if (prev_console != -1) |
2179 | old_info = registered_fb[con2fb_map[prev_console]]; | |
1da177e4 LT |
2180 | /* |
2181 | * FIXME: If we have multiple fbdev's loaded, we need to | |
2182 | * update all info->currcon. Perhaps, we can place this | |
2183 | * in a centralized structure, but this might break some | |
2184 | * drivers. | |
2185 | * | |
2186 | * info->currcon = vc->vc_num; | |
2187 | */ | |
2188 | for (i = 0; i < FB_MAX; i++) { | |
2189 | if (registered_fb[i] != NULL && registered_fb[i]->fbcon_par) { | |
e4fc2761 | 2190 | struct fbcon_ops *o = registered_fb[i]->fbcon_par; |
1da177e4 | 2191 | |
e4fc2761 | 2192 | o->currcon = vc->vc_num; |
1da177e4 LT |
2193 | } |
2194 | } | |
2195 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); | |
2196 | display_to_var(&var, p); | |
2197 | var.activate = FB_ACTIVATE_NOW; | |
2198 | ||
2199 | /* | |
2200 | * make sure we don't unnecessarily trip the memcmp() | |
2201 | * in fb_set_var() | |
2202 | */ | |
2203 | info->var.activate = var.activate; | |
10732c35 | 2204 | var.vmode |= info->var.vmode & ~FB_VMODE_MASK; |
1da177e4 | 2205 | fb_set_var(info, &var); |
e4fc2761 | 2206 | ops->var = info->var; |
1da177e4 | 2207 | |
39942fd8 KP |
2208 | if (old_info != NULL && (old_info != info || |
2209 | info->flags & FBINFO_MISC_ALWAYS_SETPAR)) { | |
88fb2c6e AD |
2210 | if (info->fbops->fb_set_par) |
2211 | info->fbops->fb_set_par(info); | |
a39bc34e | 2212 | |
5428b044 | 2213 | if (old_info != info) |
a39bc34e | 2214 | fbcon_del_cursor_timer(old_info); |
88fb2c6e | 2215 | } |
1da177e4 | 2216 | |
212f2639 AD |
2217 | if (fbcon_is_inactive(vc, info) || |
2218 | ops->blank_state != FB_BLANK_UNBLANK) | |
2219 | fbcon_del_cursor_timer(info); | |
2220 | else | |
2221 | fbcon_add_cursor_timer(info); | |
2222 | ||
b73deed3 | 2223 | set_blitting_type(vc, info); |
e4fc2761 AD |
2224 | ops->cursor_reset = 1; |
2225 | ||
b73deed3 | 2226 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 2227 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 2228 | set_blitting_type(vc, info); |
e4fc2761 | 2229 | } |
1da177e4 | 2230 | |
b8c90945 | 2231 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 | 2232 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
56f0d64d AD |
2233 | |
2234 | if (p->userfont) | |
2235 | charcnt = FNTCHARCNT(vc->vc_font.data); | |
2236 | ||
2237 | if (charcnt > 256) | |
2238 | vc->vc_complement_mask <<= 1; | |
2239 | ||
1da177e4 LT |
2240 | updatescrollmode(p, info, vc); |
2241 | ||
2242 | switch (p->scrollmode) { | |
2243 | case SCROLL_WRAP_MOVE: | |
2244 | scrollback_phys_max = p->vrows - vc->vc_rows; | |
2245 | break; | |
2246 | case SCROLL_PAN_MOVE: | |
2247 | case SCROLL_PAN_REDRAW: | |
2248 | scrollback_phys_max = p->vrows - 2 * vc->vc_rows; | |
2249 | if (scrollback_phys_max < 0) | |
2250 | scrollback_phys_max = 0; | |
2251 | break; | |
2252 | default: | |
2253 | scrollback_phys_max = 0; | |
2254 | break; | |
2255 | } | |
e4fc2761 | 2256 | |
1da177e4 LT |
2257 | scrollback_max = 0; |
2258 | scrollback_current = 0; | |
4e1567d3 AD |
2259 | |
2260 | if (!fbcon_is_inactive(vc, info)) { | |
2261 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2262 | ops->update_start(info); | |
2263 | } | |
2264 | ||
1da177e4 LT |
2265 | fbcon_set_palette(vc, color_table); |
2266 | fbcon_clear_margins(vc, 0); | |
2267 | ||
2268 | if (logo_shown == FBCON_LOGO_DRAW) { | |
2269 | ||
2270 | logo_shown = fg_console; | |
2271 | /* This is protected above by initmem_freed */ | |
9c44e5f6 | 2272 | fb_show_logo(info, ops->rotate); |
1da177e4 LT |
2273 | update_region(vc, |
2274 | vc->vc_origin + vc->vc_size_row * vc->vc_top, | |
2275 | vc->vc_size_row * (vc->vc_bottom - | |
2276 | vc->vc_top) / 2); | |
2277 | return 0; | |
2278 | } | |
2279 | return 1; | |
2280 | } | |
2281 | ||
2282 | static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, | |
2283 | int blank) | |
2284 | { | |
994efacd RP |
2285 | struct fb_event event; |
2286 | ||
1da177e4 LT |
2287 | if (blank) { |
2288 | unsigned short charmask = vc->vc_hi_font_mask ? | |
2289 | 0x1ff : 0xff; | |
2290 | unsigned short oldc; | |
2291 | ||
2292 | oldc = vc->vc_video_erase_char; | |
2293 | vc->vc_video_erase_char &= charmask; | |
2294 | fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); | |
2295 | vc->vc_video_erase_char = oldc; | |
2296 | } | |
994efacd RP |
2297 | |
2298 | ||
2299 | event.info = info; | |
2300 | event.data = ␣ | |
2301 | fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); | |
1da177e4 LT |
2302 | } |
2303 | ||
2304 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) | |
2305 | { | |
2306 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2307 | struct fbcon_ops *ops = info->fbcon_par; | |
2308 | ||
2309 | if (mode_switch) { | |
2310 | struct fb_var_screeninfo var = info->var; | |
2311 | ||
2312 | ops->graphics = 1; | |
2313 | ||
2314 | if (!blank) { | |
47434847 AD |
2315 | if (info->fbops->fb_save_state) |
2316 | info->fbops->fb_save_state(info); | |
1da177e4 LT |
2317 | var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; |
2318 | fb_set_var(info, &var); | |
2319 | ops->graphics = 0; | |
e4fc2761 | 2320 | ops->var = info->var; |
47434847 AD |
2321 | } else if (info->fbops->fb_restore_state) |
2322 | info->fbops->fb_restore_state(info); | |
1da177e4 LT |
2323 | } |
2324 | ||
2325 | if (!fbcon_is_inactive(vc, info)) { | |
2326 | if (ops->blank_state != blank) { | |
2327 | ops->blank_state = blank; | |
2328 | fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); | |
2329 | ops->cursor_flash = (!blank); | |
2330 | ||
bca404af DB |
2331 | if (!(info->flags & FBINFO_MISC_USEREVENT)) |
2332 | if (fb_blank(info, blank)) | |
2333 | fbcon_generic_blank(vc, info, blank); | |
1da177e4 LT |
2334 | } |
2335 | ||
88fb2c6e AD |
2336 | if (!blank) |
2337 | update_screen(vc); | |
2338 | } | |
2339 | ||
4d8a2d98 | 2340 | if (mode_switch || fbcon_is_inactive(vc, info) || |
212f2639 | 2341 | ops->blank_state != FB_BLANK_UNBLANK) |
88fb2c6e | 2342 | fbcon_del_cursor_timer(info); |
212f2639 AD |
2343 | else |
2344 | fbcon_add_cursor_timer(info); | |
1da177e4 | 2345 | |
88fb2c6e | 2346 | return 0; |
1da177e4 LT |
2347 | } |
2348 | ||
1da177e4 LT |
2349 | static int fbcon_get_font(struct vc_data *vc, struct console_font *font) |
2350 | { | |
2351 | u8 *fontdata = vc->vc_font.data; | |
2352 | u8 *data = font->data; | |
2353 | int i, j; | |
2354 | ||
2355 | font->width = vc->vc_font.width; | |
2356 | font->height = vc->vc_font.height; | |
2357 | font->charcount = vc->vc_hi_font_mask ? 512 : 256; | |
2358 | if (!font->data) | |
2359 | return 0; | |
2360 | ||
2361 | if (font->width <= 8) { | |
2362 | j = vc->vc_font.height; | |
2363 | for (i = 0; i < font->charcount; i++) { | |
2364 | memcpy(data, fontdata, j); | |
2365 | memset(data + j, 0, 32 - j); | |
2366 | data += 32; | |
2367 | fontdata += j; | |
2368 | } | |
2369 | } else if (font->width <= 16) { | |
2370 | j = vc->vc_font.height * 2; | |
2371 | for (i = 0; i < font->charcount; i++) { | |
2372 | memcpy(data, fontdata, j); | |
2373 | memset(data + j, 0, 64 - j); | |
2374 | data += 64; | |
2375 | fontdata += j; | |
2376 | } | |
2377 | } else if (font->width <= 24) { | |
2378 | for (i = 0; i < font->charcount; i++) { | |
2379 | for (j = 0; j < vc->vc_font.height; j++) { | |
2380 | *data++ = fontdata[0]; | |
2381 | *data++ = fontdata[1]; | |
2382 | *data++ = fontdata[2]; | |
2383 | fontdata += sizeof(u32); | |
2384 | } | |
2385 | memset(data, 0, 3 * (32 - j)); | |
2386 | data += 3 * (32 - j); | |
2387 | } | |
2388 | } else { | |
2389 | j = vc->vc_font.height * 4; | |
2390 | for (i = 0; i < font->charcount; i++) { | |
2391 | memcpy(data, fontdata, j); | |
2392 | memset(data + j, 0, 128 - j); | |
2393 | data += 128; | |
2394 | fontdata += j; | |
2395 | } | |
2396 | } | |
2397 | return 0; | |
2398 | } | |
2399 | ||
2400 | static int fbcon_do_set_font(struct vc_data *vc, int w, int h, | |
2f4516db | 2401 | const u8 * data, int userfont) |
1da177e4 LT |
2402 | { |
2403 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2404 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2405 | struct display *p = &fb_display[vc->vc_num]; |
2406 | int resize; | |
2407 | int cnt; | |
2408 | char *old_data = NULL; | |
2409 | ||
2410 | if (CON_IS_VISIBLE(vc) && softback_lines) | |
2411 | fbcon_set_origin(vc); | |
2412 | ||
2413 | resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); | |
2414 | if (p->userfont) | |
2415 | old_data = vc->vc_font.data; | |
2416 | if (userfont) | |
2417 | cnt = FNTCHARCNT(data); | |
2418 | else | |
2419 | cnt = 256; | |
2f4516db | 2420 | vc->vc_font.data = (void *)(p->fontdata = data); |
1da177e4 LT |
2421 | if ((p->userfont = userfont)) |
2422 | REFCOUNT(data)++; | |
2423 | vc->vc_font.width = w; | |
2424 | vc->vc_font.height = h; | |
2425 | if (vc->vc_hi_font_mask && cnt == 256) { | |
2426 | vc->vc_hi_font_mask = 0; | |
2427 | if (vc->vc_can_do_color) { | |
2428 | vc->vc_complement_mask >>= 1; | |
2429 | vc->vc_s_complement_mask >>= 1; | |
2430 | } | |
2431 | ||
2432 | /* ++Edmund: reorder the attribute bits */ | |
2433 | if (vc->vc_can_do_color) { | |
2434 | unsigned short *cp = | |
2435 | (unsigned short *) vc->vc_origin; | |
2436 | int count = vc->vc_screenbuf_size / 2; | |
2437 | unsigned short c; | |
2438 | for (; count > 0; count--, cp++) { | |
2439 | c = scr_readw(cp); | |
2440 | scr_writew(((c & 0xfe00) >> 1) | | |
2441 | (c & 0xff), cp); | |
2442 | } | |
2443 | c = vc->vc_video_erase_char; | |
2444 | vc->vc_video_erase_char = | |
2445 | ((c & 0xfe00) >> 1) | (c & 0xff); | |
2446 | vc->vc_attr >>= 1; | |
2447 | } | |
2448 | } else if (!vc->vc_hi_font_mask && cnt == 512) { | |
2449 | vc->vc_hi_font_mask = 0x100; | |
2450 | if (vc->vc_can_do_color) { | |
2451 | vc->vc_complement_mask <<= 1; | |
2452 | vc->vc_s_complement_mask <<= 1; | |
2453 | } | |
2454 | ||
2455 | /* ++Edmund: reorder the attribute bits */ | |
2456 | { | |
2457 | unsigned short *cp = | |
2458 | (unsigned short *) vc->vc_origin; | |
2459 | int count = vc->vc_screenbuf_size / 2; | |
2460 | unsigned short c; | |
2461 | for (; count > 0; count--, cp++) { | |
2462 | unsigned short newc; | |
2463 | c = scr_readw(cp); | |
2464 | if (vc->vc_can_do_color) | |
2465 | newc = | |
2466 | ((c & 0xff00) << 1) | (c & | |
2467 | 0xff); | |
2468 | else | |
2469 | newc = c & ~0x100; | |
2470 | scr_writew(newc, cp); | |
2471 | } | |
2472 | c = vc->vc_video_erase_char; | |
2473 | if (vc->vc_can_do_color) { | |
2474 | vc->vc_video_erase_char = | |
2475 | ((c & 0xff00) << 1) | (c & 0xff); | |
2476 | vc->vc_attr <<= 1; | |
93f78da4 | 2477 | } else |
1da177e4 LT |
2478 | vc->vc_video_erase_char = c & ~0x100; |
2479 | } | |
2480 | ||
2481 | } | |
2482 | ||
2483 | if (resize) { | |
e4fc2761 AD |
2484 | int cols, rows; |
2485 | ||
2486 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); | |
2487 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2488 | cols /= w; | |
2489 | rows /= h; | |
2490 | vc_resize(vc, cols, rows); | |
4d9c5b6e AD |
2491 | if (CON_IS_VISIBLE(vc) && softback_buf) |
2492 | fbcon_update_softback(vc); | |
1da177e4 LT |
2493 | } else if (CON_IS_VISIBLE(vc) |
2494 | && vc->vc_mode == KD_TEXT) { | |
2495 | fbcon_clear_margins(vc, 0); | |
2496 | update_screen(vc); | |
2497 | } | |
2498 | ||
2499 | if (old_data && (--REFCOUNT(old_data) == 0)) | |
2500 | kfree(old_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2501 | return 0; | |
2502 | } | |
2503 | ||
2504 | static int fbcon_copy_font(struct vc_data *vc, int con) | |
2505 | { | |
2506 | struct display *od = &fb_display[con]; | |
2507 | struct console_font *f = &vc->vc_font; | |
2508 | ||
2509 | if (od->fontdata == f->data) | |
2510 | return 0; /* already the same font... */ | |
2511 | return fbcon_do_set_font(vc, f->width, f->height, od->fontdata, od->userfont); | |
2512 | } | |
2513 | ||
2514 | /* | |
2515 | * User asked to set font; we are guaranteed that | |
2516 | * a) width and height are in range 1..32 | |
2517 | * b) charcount does not exceed 512 | |
2518 | * but lets not assume that, since someone might someday want to use larger | |
2519 | * fonts. And charcount of 512 is small for unicode support. | |
2520 | * | |
2521 | * However, user space gives the font in 32 rows , regardless of | |
2522 | * actual font height. So a new API is needed if support for larger fonts | |
2523 | * is ever implemented. | |
2524 | */ | |
2525 | ||
2526 | static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) | |
2527 | { | |
2d2699d9 | 2528 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; |
1da177e4 LT |
2529 | unsigned charcount = font->charcount; |
2530 | int w = font->width; | |
2531 | int h = font->height; | |
2532 | int size; | |
2533 | int i, csum; | |
2534 | u8 *new_data, *data = font->data; | |
2535 | int pitch = (font->width+7) >> 3; | |
2536 | ||
2537 | /* Is there a reason why fbconsole couldn't handle any charcount >256? | |
2538 | * If not this check should be changed to charcount < 256 */ | |
2539 | if (charcount != 256 && charcount != 512) | |
2540 | return -EINVAL; | |
2541 | ||
2d2699d9 AD |
2542 | /* Make sure drawing engine can handle the font */ |
2543 | if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || | |
2544 | !(info->pixmap.blit_y & (1 << (font->height - 1)))) | |
2545 | return -EINVAL; | |
38b4982c AD |
2546 | |
2547 | /* Make sure driver can handle the font length */ | |
2548 | if (fbcon_invalid_charcount(info, charcount)) | |
2549 | return -EINVAL; | |
2d2699d9 | 2550 | |
1da177e4 LT |
2551 | size = h * pitch * charcount; |
2552 | ||
2553 | new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); | |
2554 | ||
2555 | if (!new_data) | |
2556 | return -ENOMEM; | |
2557 | ||
2558 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
2559 | FNTSIZE(new_data) = size; | |
2560 | FNTCHARCNT(new_data) = charcount; | |
2561 | REFCOUNT(new_data) = 0; /* usage counter */ | |
2562 | for (i=0; i< charcount; i++) { | |
2563 | memcpy(new_data + i*h*pitch, data + i*32*pitch, h*pitch); | |
2564 | } | |
2565 | ||
2566 | /* Since linux has a nice crc32 function use it for counting font | |
2567 | * checksums. */ | |
2568 | csum = crc32(0, new_data, size); | |
2569 | ||
2570 | FNTSUM(new_data) = csum; | |
2571 | /* Check if the same font is on some other console already */ | |
e614b18d | 2572 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
2573 | struct vc_data *tmp = vc_cons[i].d; |
2574 | ||
2575 | if (fb_display[i].userfont && | |
2576 | fb_display[i].fontdata && | |
2577 | FNTSUM(fb_display[i].fontdata) == csum && | |
2578 | FNTSIZE(fb_display[i].fontdata) == size && | |
2579 | tmp->vc_font.width == w && | |
2580 | !memcmp(fb_display[i].fontdata, new_data, size)) { | |
2581 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2f4516db | 2582 | new_data = (u8 *)fb_display[i].fontdata; |
1da177e4 LT |
2583 | break; |
2584 | } | |
2585 | } | |
2586 | return fbcon_do_set_font(vc, font->width, font->height, new_data, 1); | |
2587 | } | |
2588 | ||
2589 | static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name) | |
2590 | { | |
2591 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2f4516db | 2592 | const struct font_desc *f; |
1da177e4 LT |
2593 | |
2594 | if (!name) | |
2d2699d9 AD |
2595 | f = get_default_font(info->var.xres, info->var.yres, |
2596 | info->pixmap.blit_x, info->pixmap.blit_y); | |
1da177e4 LT |
2597 | else if (!(f = find_font(name))) |
2598 | return -ENOENT; | |
2599 | ||
2600 | font->width = f->width; | |
2601 | font->height = f->height; | |
2602 | return fbcon_do_set_font(vc, f->width, f->height, f->data, 0); | |
2603 | } | |
2604 | ||
2605 | static u16 palette_red[16]; | |
2606 | static u16 palette_green[16]; | |
2607 | static u16 palette_blue[16]; | |
2608 | ||
2609 | static struct fb_cmap palette_cmap = { | |
2610 | 0, 16, palette_red, palette_green, palette_blue, NULL | |
2611 | }; | |
2612 | ||
2613 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table) | |
2614 | { | |
2615 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2616 | int i, j, k, depth; | |
2617 | u8 val; | |
2618 | ||
2619 | if (fbcon_is_inactive(vc, info)) | |
2620 | return -EINVAL; | |
2621 | ||
2622 | if (!CON_IS_VISIBLE(vc)) | |
2623 | return 0; | |
2624 | ||
b8c90945 | 2625 | depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
2626 | if (depth > 3) { |
2627 | for (i = j = 0; i < 16; i++) { | |
2628 | k = table[i]; | |
2629 | val = vc->vc_palette[j++]; | |
2630 | palette_red[k] = (val << 8) | val; | |
2631 | val = vc->vc_palette[j++]; | |
2632 | palette_green[k] = (val << 8) | val; | |
2633 | val = vc->vc_palette[j++]; | |
2634 | palette_blue[k] = (val << 8) | val; | |
2635 | } | |
2636 | palette_cmap.len = 16; | |
2637 | palette_cmap.start = 0; | |
2638 | /* | |
2639 | * If framebuffer is capable of less than 16 colors, | |
2640 | * use default palette of fbcon. | |
2641 | */ | |
2642 | } else | |
2643 | fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); | |
2644 | ||
2645 | return fb_set_cmap(&palette_cmap, info); | |
2646 | } | |
2647 | ||
2648 | static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) | |
2649 | { | |
2650 | unsigned long p; | |
2651 | int line; | |
2652 | ||
2653 | if (vc->vc_num != fg_console || !softback_lines) | |
2654 | return (u16 *) (vc->vc_origin + offset); | |
2655 | line = offset / vc->vc_size_row; | |
2656 | if (line >= softback_lines) | |
2657 | return (u16 *) (vc->vc_origin + offset - | |
2658 | softback_lines * vc->vc_size_row); | |
2659 | p = softback_curr + offset; | |
2660 | if (p >= softback_end) | |
2661 | p += softback_buf - softback_end; | |
2662 | return (u16 *) p; | |
2663 | } | |
2664 | ||
2665 | static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, | |
2666 | int *px, int *py) | |
2667 | { | |
2668 | unsigned long ret; | |
2669 | int x, y; | |
2670 | ||
2671 | if (pos >= vc->vc_origin && pos < vc->vc_scr_end) { | |
2672 | unsigned long offset = (pos - vc->vc_origin) / 2; | |
2673 | ||
2674 | x = offset % vc->vc_cols; | |
2675 | y = offset / vc->vc_cols; | |
2676 | if (vc->vc_num == fg_console) | |
2677 | y += softback_lines; | |
2678 | ret = pos + (vc->vc_cols - x) * 2; | |
2679 | } else if (vc->vc_num == fg_console && softback_lines) { | |
2680 | unsigned long offset = pos - softback_curr; | |
2681 | ||
2682 | if (pos < softback_curr) | |
2683 | offset += softback_end - softback_buf; | |
2684 | offset /= 2; | |
2685 | x = offset % vc->vc_cols; | |
2686 | y = offset / vc->vc_cols; | |
2687 | ret = pos + (vc->vc_cols - x) * 2; | |
2688 | if (ret == softback_end) | |
2689 | ret = softback_buf; | |
2690 | if (ret == softback_in) | |
2691 | ret = vc->vc_origin; | |
2692 | } else { | |
2693 | /* Should not happen */ | |
2694 | x = y = 0; | |
2695 | ret = vc->vc_origin; | |
2696 | } | |
2697 | if (px) | |
2698 | *px = x; | |
2699 | if (py) | |
2700 | *py = y; | |
2701 | return ret; | |
2702 | } | |
2703 | ||
2704 | /* As we might be inside of softback, we may work with non-contiguous buffer, | |
2705 | that's why we have to use a separate routine. */ | |
2706 | static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) | |
2707 | { | |
2708 | while (cnt--) { | |
2709 | u16 a = scr_readw(p); | |
2710 | if (!vc->vc_can_do_color) | |
2711 | a ^= 0x0800; | |
2712 | else if (vc->vc_hi_font_mask == 0x100) | |
2713 | a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | | |
2714 | (((a) & 0x0e00) << 4); | |
2715 | else | |
2716 | a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | | |
2717 | (((a) & 0x0700) << 4); | |
2718 | scr_writew(a, p++); | |
2719 | if (p == (u16 *) softback_end) | |
2720 | p = (u16 *) softback_buf; | |
2721 | if (p == (u16 *) softback_in) | |
2722 | p = (u16 *) vc->vc_origin; | |
2723 | } | |
2724 | } | |
2725 | ||
2726 | static int fbcon_scrolldelta(struct vc_data *vc, int lines) | |
2727 | { | |
2728 | struct fb_info *info = registered_fb[con2fb_map[fg_console]]; | |
e4fc2761 | 2729 | struct fbcon_ops *ops = info->fbcon_par; |
2c6cc35c | 2730 | struct display *disp = &fb_display[fg_console]; |
1da177e4 LT |
2731 | int offset, limit, scrollback_old; |
2732 | ||
2733 | if (softback_top) { | |
2734 | if (vc->vc_num != fg_console) | |
2735 | return 0; | |
2736 | if (vc->vc_mode != KD_TEXT || !lines) | |
2737 | return 0; | |
2738 | if (logo_shown >= 0) { | |
2739 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2740 | ||
2741 | if (conp2->vc_top == logo_lines | |
2742 | && conp2->vc_bottom == conp2->vc_rows) | |
2743 | conp2->vc_top = 0; | |
2744 | if (logo_shown == vc->vc_num) { | |
2745 | unsigned long p, q; | |
2746 | int i; | |
2747 | ||
2748 | p = softback_in; | |
2749 | q = vc->vc_origin + | |
2750 | logo_lines * vc->vc_size_row; | |
2751 | for (i = 0; i < logo_lines; i++) { | |
2752 | if (p == softback_top) | |
2753 | break; | |
2754 | if (p == softback_buf) | |
2755 | p = softback_end; | |
2756 | p -= vc->vc_size_row; | |
2757 | q -= vc->vc_size_row; | |
2758 | scr_memcpyw((u16 *) q, (u16 *) p, | |
2759 | vc->vc_size_row); | |
2760 | } | |
308af929 | 2761 | softback_in = softback_curr = p; |
1da177e4 LT |
2762 | update_region(vc, vc->vc_origin, |
2763 | logo_lines * vc->vc_cols); | |
2764 | } | |
2765 | logo_shown = FBCON_LOGO_CANSHOW; | |
2766 | } | |
2767 | fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); | |
2c6cc35c | 2768 | fbcon_redraw_softback(vc, disp, lines); |
1da177e4 LT |
2769 | fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); |
2770 | return 0; | |
2771 | } | |
2772 | ||
2773 | if (!scrollback_phys_max) | |
2774 | return -ENOSYS; | |
2775 | ||
2776 | scrollback_old = scrollback_current; | |
2777 | scrollback_current -= lines; | |
2778 | if (scrollback_current < 0) | |
2779 | scrollback_current = 0; | |
2780 | else if (scrollback_current > scrollback_max) | |
2781 | scrollback_current = scrollback_max; | |
2782 | if (scrollback_current == scrollback_old) | |
2783 | return 0; | |
2784 | ||
2785 | if (fbcon_is_inactive(vc, info)) | |
2786 | return 0; | |
2787 | ||
2788 | fbcon_cursor(vc, CM_ERASE); | |
2789 | ||
2c6cc35c MS |
2790 | offset = disp->yscroll - scrollback_current; |
2791 | limit = disp->vrows; | |
2792 | switch (disp->scrollmode) { | |
1da177e4 LT |
2793 | case SCROLL_WRAP_MOVE: |
2794 | info->var.vmode |= FB_VMODE_YWRAP; | |
2795 | break; | |
2796 | case SCROLL_PAN_MOVE: | |
2797 | case SCROLL_PAN_REDRAW: | |
2798 | limit -= vc->vc_rows; | |
2799 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
2800 | break; | |
2801 | } | |
2802 | if (offset < 0) | |
2803 | offset += limit; | |
2804 | else if (offset >= limit) | |
2805 | offset -= limit; | |
e4fc2761 AD |
2806 | |
2807 | ops->var.xoffset = 0; | |
2808 | ops->var.yoffset = offset * vc->vc_font.height; | |
2809 | ops->update_start(info); | |
2810 | ||
1da177e4 LT |
2811 | if (!scrollback_current) |
2812 | fbcon_cursor(vc, CM_DRAW); | |
2813 | return 0; | |
2814 | } | |
2815 | ||
2816 | static int fbcon_set_origin(struct vc_data *vc) | |
2817 | { | |
2818 | if (softback_lines) | |
2819 | fbcon_scrolldelta(vc, softback_lines); | |
2820 | return 0; | |
2821 | } | |
2822 | ||
2823 | static void fbcon_suspended(struct fb_info *info) | |
2824 | { | |
2825 | struct vc_data *vc = NULL; | |
2826 | struct fbcon_ops *ops = info->fbcon_par; | |
2827 | ||
2828 | if (!ops || ops->currcon < 0) | |
2829 | return; | |
2830 | vc = vc_cons[ops->currcon].d; | |
2831 | ||
2832 | /* Clear cursor, restore saved data */ | |
2833 | fbcon_cursor(vc, CM_ERASE); | |
2834 | } | |
2835 | ||
2836 | static void fbcon_resumed(struct fb_info *info) | |
2837 | { | |
2838 | struct vc_data *vc; | |
2839 | struct fbcon_ops *ops = info->fbcon_par; | |
2840 | ||
2841 | if (!ops || ops->currcon < 0) | |
2842 | return; | |
2843 | vc = vc_cons[ops->currcon].d; | |
2844 | ||
2845 | update_screen(vc); | |
2846 | } | |
2847 | ||
2848 | static void fbcon_modechanged(struct fb_info *info) | |
2849 | { | |
2850 | struct fbcon_ops *ops = info->fbcon_par; | |
2851 | struct vc_data *vc; | |
2852 | struct display *p; | |
2853 | int rows, cols; | |
2854 | ||
2855 | if (!ops || ops->currcon < 0) | |
2856 | return; | |
2857 | vc = vc_cons[ops->currcon].d; | |
e4fc2761 AD |
2858 | if (vc->vc_mode != KD_TEXT || |
2859 | registered_fb[con2fb_map[ops->currcon]] != info) | |
1da177e4 LT |
2860 | return; |
2861 | ||
2862 | p = &fb_display[vc->vc_num]; | |
b73deed3 | 2863 | set_blitting_type(vc, info); |
1da177e4 LT |
2864 | |
2865 | if (CON_IS_VISIBLE(vc)) { | |
2866 | var_to_display(p, &info->var, info); | |
e4fc2761 AD |
2867 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2868 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2869 | cols /= vc->vc_font.width; | |
2870 | rows /= vc->vc_font.height; | |
1da177e4 LT |
2871 | vc_resize(vc, cols, rows); |
2872 | updatescrollmode(p, info, vc); | |
2873 | scrollback_max = 0; | |
2874 | scrollback_current = 0; | |
4e1567d3 AD |
2875 | |
2876 | if (!fbcon_is_inactive(vc, info)) { | |
2877 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2878 | ops->update_start(info); | |
2879 | } | |
2880 | ||
1da177e4 LT |
2881 | fbcon_set_palette(vc, color_table); |
2882 | update_screen(vc); | |
4d9c5b6e AD |
2883 | if (softback_buf) |
2884 | fbcon_update_softback(vc); | |
1da177e4 LT |
2885 | } |
2886 | } | |
2887 | ||
7726e9e1 AD |
2888 | static void fbcon_set_all_vcs(struct fb_info *info) |
2889 | { | |
2890 | struct fbcon_ops *ops = info->fbcon_par; | |
2891 | struct vc_data *vc; | |
2892 | struct display *p; | |
95d67bb1 | 2893 | int i, rows, cols, fg = -1; |
7726e9e1 AD |
2894 | |
2895 | if (!ops || ops->currcon < 0) | |
2896 | return; | |
2897 | ||
e614b18d | 2898 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
7726e9e1 AD |
2899 | vc = vc_cons[i].d; |
2900 | if (!vc || vc->vc_mode != KD_TEXT || | |
2901 | registered_fb[con2fb_map[i]] != info) | |
2902 | continue; | |
2903 | ||
95d67bb1 AD |
2904 | if (CON_IS_VISIBLE(vc)) { |
2905 | fg = i; | |
2906 | continue; | |
2907 | } | |
2908 | ||
7726e9e1 | 2909 | p = &fb_display[vc->vc_num]; |
b73deed3 | 2910 | set_blitting_type(vc, info); |
7726e9e1 | 2911 | var_to_display(p, &info->var, info); |
232fb69a ON |
2912 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2913 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
e4fc2761 AD |
2914 | cols /= vc->vc_font.width; |
2915 | rows /= vc->vc_font.height; | |
7726e9e1 | 2916 | vc_resize(vc, cols, rows); |
7726e9e1 | 2917 | } |
04a2fe57 | 2918 | |
95d67bb1 AD |
2919 | if (fg != -1) |
2920 | fbcon_modechanged(info); | |
7726e9e1 AD |
2921 | } |
2922 | ||
1da177e4 LT |
2923 | static int fbcon_mode_deleted(struct fb_info *info, |
2924 | struct fb_videomode *mode) | |
2925 | { | |
2926 | struct fb_info *fb_info; | |
2927 | struct display *p; | |
2928 | int i, j, found = 0; | |
2929 | ||
2930 | /* before deletion, ensure that mode is not in use */ | |
2931 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2932 | j = con2fb_map[i]; | |
2933 | if (j == -1) | |
2934 | continue; | |
2935 | fb_info = registered_fb[j]; | |
2936 | if (fb_info != info) | |
2937 | continue; | |
2938 | p = &fb_display[i]; | |
2939 | if (!p || !p->mode) | |
2940 | continue; | |
2941 | if (fb_mode_is_equal(p->mode, mode)) { | |
2942 | found = 1; | |
2943 | break; | |
2944 | } | |
2945 | } | |
2946 | return found; | |
2947 | } | |
2948 | ||
cfafca80 JB |
2949 | #ifdef CONFIG_VT_HW_CONSOLE_BINDING |
2950 | static int fbcon_unbind(void) | |
2951 | { | |
2952 | int ret; | |
2953 | ||
2954 | ret = unbind_con_driver(&fb_con, first_fb_vc, last_fb_vc, | |
2955 | fbcon_is_default); | |
2956 | return ret; | |
2957 | } | |
2958 | #else | |
2959 | static inline int fbcon_unbind(void) | |
2960 | { | |
2961 | return -EINVAL; | |
2962 | } | |
2963 | #endif /* CONFIG_VT_HW_CONSOLE_BINDING */ | |
2964 | ||
2965 | static int fbcon_fb_unbind(int idx) | |
2966 | { | |
2967 | int i, new_idx = -1, ret = 0; | |
2968 | ||
2969 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2970 | if (con2fb_map[i] != idx && | |
2971 | con2fb_map[i] != -1) { | |
2972 | new_idx = i; | |
2973 | break; | |
2974 | } | |
2975 | } | |
2976 | ||
2977 | if (new_idx != -1) { | |
2978 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2979 | if (con2fb_map[i] == idx) | |
2980 | set_con2fb_map(i, new_idx, 0); | |
2981 | } | |
2982 | } else | |
2983 | ret = fbcon_unbind(); | |
2984 | ||
2985 | return ret; | |
2986 | } | |
2987 | ||
623e71b0 | 2988 | static int fbcon_fb_unregistered(struct fb_info *info) |
e614b18d | 2989 | { |
623e71b0 | 2990 | int i, idx = info->node; |
e614b18d AD |
2991 | |
2992 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2993 | if (con2fb_map[i] == idx) | |
2994 | con2fb_map[i] = -1; | |
2995 | } | |
2996 | ||
2997 | if (idx == info_idx) { | |
2998 | info_idx = -1; | |
2999 | ||
3000 | for (i = 0; i < FB_MAX; i++) { | |
3001 | if (registered_fb[i] != NULL) { | |
3002 | info_idx = i; | |
3003 | break; | |
3004 | } | |
3005 | } | |
3006 | } | |
3007 | ||
3008 | if (info_idx != -1) { | |
3009 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3010 | if (con2fb_map[i] == -1) | |
3011 | con2fb_map[i] = info_idx; | |
3012 | } | |
3013 | } | |
3014 | ||
3015 | if (!num_registered_fb) | |
3016 | unregister_con_driver(&fb_con); | |
3017 | ||
623e71b0 AD |
3018 | |
3019 | if (primary_device == idx) | |
3020 | primary_device = -1; | |
3021 | ||
3022 | return 0; | |
3023 | } | |
3024 | ||
3025 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY | |
afd1db16 | 3026 | static void fbcon_select_primary(struct fb_info *info) |
623e71b0 | 3027 | { |
623e71b0 AD |
3028 | if (!map_override && primary_device == -1 && |
3029 | fb_is_primary_device(info)) { | |
afd1db16 | 3030 | int i; |
623e71b0 | 3031 | |
afd1db16 AD |
3032 | printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", |
3033 | info->fix.id, info->node); | |
623e71b0 AD |
3034 | primary_device = info->node; |
3035 | ||
afd1db16 | 3036 | for (i = first_fb_vc; i <= last_fb_vc; i++) |
623e71b0 | 3037 | con2fb_map_boot[i] = primary_device; |
623e71b0 | 3038 | |
afd1db16 AD |
3039 | if (con_is_bound(&fb_con)) { |
3040 | printk(KERN_INFO "fbcon: Remapping primary device, " | |
3041 | "fb%i, to tty %i-%i\n", info->node, | |
3042 | first_fb_vc + 1, last_fb_vc + 1); | |
3043 | info_idx = primary_device; | |
623e71b0 | 3044 | } |
623e71b0 AD |
3045 | } |
3046 | ||
623e71b0 AD |
3047 | } |
3048 | #else | |
afd1db16 | 3049 | static inline void fbcon_select_primary(struct fb_info *info) |
623e71b0 | 3050 | { |
afd1db16 | 3051 | return; |
e614b18d | 3052 | } |
623e71b0 | 3053 | #endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */ |
e614b18d | 3054 | |
623e71b0 | 3055 | static int fbcon_fb_registered(struct fb_info *info) |
1da177e4 | 3056 | { |
623e71b0 AD |
3057 | int ret = 0, i, idx = info->node; |
3058 | ||
afd1db16 | 3059 | fbcon_select_primary(info); |
1da177e4 LT |
3060 | |
3061 | if (info_idx == -1) { | |
e614b18d | 3062 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3063 | if (con2fb_map_boot[i] == idx) { |
3064 | info_idx = idx; | |
3065 | break; | |
3066 | } | |
3067 | } | |
e614b18d | 3068 | |
1da177e4 LT |
3069 | if (info_idx != -1) |
3070 | ret = fbcon_takeover(1); | |
3071 | } else { | |
e614b18d | 3072 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
d1baa4ff | 3073 | if (con2fb_map_boot[i] == idx) |
1da177e4 LT |
3074 | set_con2fb_map(i, idx, 0); |
3075 | } | |
3076 | } | |
3077 | ||
3078 | return ret; | |
3079 | } | |
3080 | ||
3081 | static void fbcon_fb_blanked(struct fb_info *info, int blank) | |
3082 | { | |
3083 | struct fbcon_ops *ops = info->fbcon_par; | |
3084 | struct vc_data *vc; | |
3085 | ||
3086 | if (!ops || ops->currcon < 0) | |
3087 | return; | |
3088 | ||
3089 | vc = vc_cons[ops->currcon].d; | |
3090 | if (vc->vc_mode != KD_TEXT || | |
3091 | registered_fb[con2fb_map[ops->currcon]] != info) | |
3092 | return; | |
3093 | ||
3094 | if (CON_IS_VISIBLE(vc)) { | |
3095 | if (blank) | |
3096 | do_blank_screen(0); | |
3097 | else | |
3098 | do_unblank_screen(0); | |
3099 | } | |
3100 | ops->blank_state = blank; | |
3101 | } | |
3102 | ||
3103 | static void fbcon_new_modelist(struct fb_info *info) | |
3104 | { | |
3105 | int i; | |
3106 | struct vc_data *vc; | |
3107 | struct fb_var_screeninfo var; | |
9791d763 | 3108 | const struct fb_videomode *mode; |
1da177e4 | 3109 | |
e614b18d | 3110 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3111 | if (registered_fb[con2fb_map[i]] != info) |
3112 | continue; | |
3113 | if (!fb_display[i].mode) | |
3114 | continue; | |
3115 | vc = vc_cons[i].d; | |
3116 | display_to_var(&var, &fb_display[i]); | |
8fb6567e MJ |
3117 | mode = fb_find_nearest_mode(fb_display[i].mode, |
3118 | &info->modelist); | |
1da177e4 | 3119 | fb_videomode_to_var(&var, mode); |
d1baa4ff | 3120 | fbcon_set_disp(info, &var, vc->vc_num); |
1da177e4 LT |
3121 | } |
3122 | } | |
3123 | ||
38a3dc51 AD |
3124 | static void fbcon_get_requirement(struct fb_info *info, |
3125 | struct fb_blit_caps *caps) | |
3126 | { | |
3127 | struct vc_data *vc; | |
3128 | struct display *p; | |
38a3dc51 AD |
3129 | |
3130 | if (caps->flags) { | |
167f07f1 | 3131 | int i, charcnt; |
38a3dc51 AD |
3132 | |
3133 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3134 | vc = vc_cons[i].d; | |
167f07f1 AD |
3135 | if (vc && vc->vc_mode == KD_TEXT && |
3136 | info->node == con2fb_map[i]) { | |
38a3dc51 AD |
3137 | p = &fb_display[i]; |
3138 | caps->x |= 1 << (vc->vc_font.width - 1); | |
3139 | caps->y |= 1 << (vc->vc_font.height - 1); | |
3140 | charcnt = (p->userfont) ? | |
3141 | FNTCHARCNT(p->fontdata) : 256; | |
3142 | if (caps->len < charcnt) | |
3143 | caps->len = charcnt; | |
3144 | } | |
3145 | } | |
3146 | } else { | |
3147 | vc = vc_cons[fg_console].d; | |
3148 | ||
167f07f1 AD |
3149 | if (vc && vc->vc_mode == KD_TEXT && |
3150 | info->node == con2fb_map[fg_console]) { | |
38a3dc51 | 3151 | p = &fb_display[fg_console]; |
167f07f1 AD |
3152 | caps->x = 1 << (vc->vc_font.width - 1); |
3153 | caps->y = 1 << (vc->vc_font.height - 1); | |
3154 | caps->len = (p->userfont) ? | |
38a3dc51 | 3155 | FNTCHARCNT(p->fontdata) : 256; |
38a3dc51 AD |
3156 | } |
3157 | } | |
3158 | } | |
3159 | ||
1da177e4 LT |
3160 | static int fbcon_event_notify(struct notifier_block *self, |
3161 | unsigned long action, void *data) | |
3162 | { | |
3163 | struct fb_event *event = data; | |
3164 | struct fb_info *info = event->info; | |
3165 | struct fb_videomode *mode; | |
3166 | struct fb_con2fbmap *con2fb; | |
38a3dc51 | 3167 | struct fb_blit_caps *caps; |
1da177e4 LT |
3168 | int ret = 0; |
3169 | ||
e614b18d AD |
3170 | /* |
3171 | * ignore all events except driver registration and deregistration | |
3172 | * if fbcon is not active | |
3173 | */ | |
3174 | if (fbcon_has_exited && !(action == FB_EVENT_FB_REGISTERED || | |
3175 | action == FB_EVENT_FB_UNREGISTERED)) | |
3176 | goto done; | |
3177 | ||
1da177e4 LT |
3178 | switch(action) { |
3179 | case FB_EVENT_SUSPEND: | |
3180 | fbcon_suspended(info); | |
3181 | break; | |
3182 | case FB_EVENT_RESUME: | |
3183 | fbcon_resumed(info); | |
3184 | break; | |
3185 | case FB_EVENT_MODE_CHANGE: | |
3186 | fbcon_modechanged(info); | |
3187 | break; | |
7726e9e1 AD |
3188 | case FB_EVENT_MODE_CHANGE_ALL: |
3189 | fbcon_set_all_vcs(info); | |
3190 | break; | |
1da177e4 LT |
3191 | case FB_EVENT_MODE_DELETE: |
3192 | mode = event->data; | |
3193 | ret = fbcon_mode_deleted(info, mode); | |
3194 | break; | |
cfafca80 JB |
3195 | case FB_EVENT_FB_UNBIND: |
3196 | ret = fbcon_fb_unbind(info->node); | |
3197 | break; | |
1da177e4 | 3198 | case FB_EVENT_FB_REGISTERED: |
623e71b0 | 3199 | ret = fbcon_fb_registered(info); |
1da177e4 | 3200 | break; |
e614b18d | 3201 | case FB_EVENT_FB_UNREGISTERED: |
623e71b0 | 3202 | ret = fbcon_fb_unregistered(info); |
e614b18d | 3203 | break; |
1da177e4 LT |
3204 | case FB_EVENT_SET_CONSOLE_MAP: |
3205 | con2fb = event->data; | |
3206 | ret = set_con2fb_map(con2fb->console - 1, | |
3207 | con2fb->framebuffer, 1); | |
3208 | break; | |
3209 | case FB_EVENT_GET_CONSOLE_MAP: | |
3210 | con2fb = event->data; | |
3211 | con2fb->framebuffer = con2fb_map[con2fb->console - 1]; | |
3212 | break; | |
3213 | case FB_EVENT_BLANK: | |
3214 | fbcon_fb_blanked(info, *(int *)event->data); | |
3215 | break; | |
3216 | case FB_EVENT_NEW_MODELIST: | |
3217 | fbcon_new_modelist(info); | |
3218 | break; | |
38a3dc51 AD |
3219 | case FB_EVENT_GET_REQ: |
3220 | caps = event->data; | |
3221 | fbcon_get_requirement(info, caps); | |
3222 | break; | |
1da177e4 LT |
3223 | } |
3224 | ||
e614b18d | 3225 | done: |
1da177e4 LT |
3226 | return ret; |
3227 | } | |
3228 | ||
3229 | /* | |
3230 | * The console `switch' structure for the frame buffer based console | |
3231 | */ | |
3232 | ||
3233 | static const struct consw fb_con = { | |
3234 | .owner = THIS_MODULE, | |
3235 | .con_startup = fbcon_startup, | |
3236 | .con_init = fbcon_init, | |
3237 | .con_deinit = fbcon_deinit, | |
3238 | .con_clear = fbcon_clear, | |
3239 | .con_putc = fbcon_putc, | |
3240 | .con_putcs = fbcon_putcs, | |
3241 | .con_cursor = fbcon_cursor, | |
3242 | .con_scroll = fbcon_scroll, | |
3243 | .con_bmove = fbcon_bmove, | |
3244 | .con_switch = fbcon_switch, | |
3245 | .con_blank = fbcon_blank, | |
3246 | .con_font_set = fbcon_set_font, | |
3247 | .con_font_get = fbcon_get_font, | |
3248 | .con_font_default = fbcon_set_def_font, | |
3249 | .con_font_copy = fbcon_copy_font, | |
3250 | .con_set_palette = fbcon_set_palette, | |
3251 | .con_scrolldelta = fbcon_scrolldelta, | |
3252 | .con_set_origin = fbcon_set_origin, | |
3253 | .con_invert_region = fbcon_invert_region, | |
3254 | .con_screen_pos = fbcon_screen_pos, | |
3255 | .con_getxy = fbcon_getxy, | |
3256 | .con_resize = fbcon_resize, | |
3257 | }; | |
3258 | ||
3259 | static struct notifier_block fbcon_event_notifier = { | |
3260 | .notifier_call = fbcon_event_notify, | |
3261 | }; | |
3262 | ||
0c6c1ce0 AD |
3263 | static ssize_t store_rotate(struct device *device, |
3264 | struct device_attribute *attr, const char *buf, | |
3265 | size_t count) | |
9a179176 AD |
3266 | { |
3267 | struct fb_info *info; | |
3268 | int rotate, idx; | |
3269 | char **last = NULL; | |
3270 | ||
e614b18d AD |
3271 | if (fbcon_has_exited) |
3272 | return count; | |
3273 | ||
9a179176 AD |
3274 | acquire_console_sem(); |
3275 | idx = con2fb_map[fg_console]; | |
3276 | ||
3277 | if (idx == -1 || registered_fb[idx] == NULL) | |
3278 | goto err; | |
3279 | ||
3280 | info = registered_fb[idx]; | |
3281 | rotate = simple_strtoul(buf, last, 0); | |
3282 | fbcon_rotate(info, rotate); | |
3283 | err: | |
3284 | release_console_sem(); | |
3285 | return count; | |
3286 | } | |
3287 | ||
0c6c1ce0 AD |
3288 | static ssize_t store_rotate_all(struct device *device, |
3289 | struct device_attribute *attr,const char *buf, | |
3290 | size_t count) | |
9a179176 AD |
3291 | { |
3292 | struct fb_info *info; | |
3293 | int rotate, idx; | |
3294 | char **last = NULL; | |
3295 | ||
e614b18d AD |
3296 | if (fbcon_has_exited) |
3297 | return count; | |
3298 | ||
9a179176 AD |
3299 | acquire_console_sem(); |
3300 | idx = con2fb_map[fg_console]; | |
3301 | ||
3302 | if (idx == -1 || registered_fb[idx] == NULL) | |
3303 | goto err; | |
3304 | ||
3305 | info = registered_fb[idx]; | |
3306 | rotate = simple_strtoul(buf, last, 0); | |
3307 | fbcon_rotate_all(info, rotate); | |
3308 | err: | |
3309 | release_console_sem(); | |
3310 | return count; | |
3311 | } | |
3312 | ||
0c6c1ce0 AD |
3313 | static ssize_t show_rotate(struct device *device, |
3314 | struct device_attribute *attr,char *buf) | |
9a179176 AD |
3315 | { |
3316 | struct fb_info *info; | |
3317 | int rotate = 0, idx; | |
3318 | ||
e614b18d AD |
3319 | if (fbcon_has_exited) |
3320 | return 0; | |
3321 | ||
9a179176 AD |
3322 | acquire_console_sem(); |
3323 | idx = con2fb_map[fg_console]; | |
3324 | ||
3325 | if (idx == -1 || registered_fb[idx] == NULL) | |
3326 | goto err; | |
3327 | ||
3328 | info = registered_fb[idx]; | |
3329 | rotate = fbcon_get_rotate(info); | |
3330 | err: | |
3331 | release_console_sem(); | |
3332 | return snprintf(buf, PAGE_SIZE, "%d\n", rotate); | |
3333 | } | |
3334 | ||
0c6c1ce0 AD |
3335 | static ssize_t show_cursor_blink(struct device *device, |
3336 | struct device_attribute *attr, char *buf) | |
acba9cd0 AD |
3337 | { |
3338 | struct fb_info *info; | |
3339 | struct fbcon_ops *ops; | |
3340 | int idx, blink = -1; | |
3341 | ||
3342 | if (fbcon_has_exited) | |
3343 | return 0; | |
3344 | ||
3345 | acquire_console_sem(); | |
3346 | idx = con2fb_map[fg_console]; | |
3347 | ||
3348 | if (idx == -1 || registered_fb[idx] == NULL) | |
3349 | goto err; | |
3350 | ||
3351 | info = registered_fb[idx]; | |
3352 | ops = info->fbcon_par; | |
3353 | ||
3354 | if (!ops) | |
3355 | goto err; | |
3356 | ||
3357 | blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0; | |
3358 | err: | |
3359 | release_console_sem(); | |
3360 | return snprintf(buf, PAGE_SIZE, "%d\n", blink); | |
3361 | } | |
3362 | ||
0c6c1ce0 AD |
3363 | static ssize_t store_cursor_blink(struct device *device, |
3364 | struct device_attribute *attr, | |
acba9cd0 AD |
3365 | const char *buf, size_t count) |
3366 | { | |
3367 | struct fb_info *info; | |
3368 | int blink, idx; | |
3369 | char **last = NULL; | |
3370 | ||
3371 | if (fbcon_has_exited) | |
3372 | return count; | |
3373 | ||
3374 | acquire_console_sem(); | |
3375 | idx = con2fb_map[fg_console]; | |
3376 | ||
3377 | if (idx == -1 || registered_fb[idx] == NULL) | |
3378 | goto err; | |
3379 | ||
3380 | info = registered_fb[idx]; | |
3381 | ||
3382 | if (!info->fbcon_par) | |
3383 | goto err; | |
3384 | ||
3385 | blink = simple_strtoul(buf, last, 0); | |
3386 | ||
3387 | if (blink) { | |
3388 | fbcon_cursor_noblink = 0; | |
3389 | fbcon_add_cursor_timer(info); | |
3390 | } else { | |
3391 | fbcon_cursor_noblink = 1; | |
3392 | fbcon_del_cursor_timer(info); | |
3393 | } | |
3394 | ||
3395 | err: | |
3396 | release_console_sem(); | |
3397 | return count; | |
3398 | } | |
3399 | ||
0c6c1ce0 | 3400 | static struct device_attribute device_attrs[] = { |
9a179176 AD |
3401 | __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), |
3402 | __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all), | |
acba9cd0 AD |
3403 | __ATTR(cursor_blink, S_IRUGO|S_IWUSR, show_cursor_blink, |
3404 | store_cursor_blink), | |
9a179176 AD |
3405 | }; |
3406 | ||
0c6c1ce0 | 3407 | static int fbcon_init_device(void) |
9a179176 | 3408 | { |
0a727dea AD |
3409 | int i, error = 0; |
3410 | ||
3411 | fbcon_has_sysfs = 1; | |
3412 | ||
0c6c1ce0 AD |
3413 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) { |
3414 | error = device_create_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3415 | |
3416 | if (error) | |
3417 | break; | |
3418 | } | |
3419 | ||
3420 | if (error) { | |
3421 | while (--i >= 0) | |
0c6c1ce0 | 3422 | device_remove_file(fbcon_device, &device_attrs[i]); |
0a727dea AD |
3423 | |
3424 | fbcon_has_sysfs = 0; | |
3425 | } | |
9a179176 | 3426 | |
9a179176 AD |
3427 | return 0; |
3428 | } | |
3429 | ||
5428b044 | 3430 | static void fbcon_start(void) |
1da177e4 | 3431 | { |
5428b044 AD |
3432 | if (num_registered_fb) { |
3433 | int i; | |
9a179176 | 3434 | |
5428b044 | 3435 | acquire_console_sem(); |
1da177e4 | 3436 | |
1da177e4 LT |
3437 | for (i = 0; i < FB_MAX; i++) { |
3438 | if (registered_fb[i] != NULL) { | |
3439 | info_idx = i; | |
3440 | break; | |
3441 | } | |
3442 | } | |
5428b044 AD |
3443 | |
3444 | release_console_sem(); | |
1da177e4 LT |
3445 | fbcon_takeover(0); |
3446 | } | |
9a179176 AD |
3447 | } |
3448 | ||
5428b044 | 3449 | static void fbcon_exit(void) |
9a179176 | 3450 | { |
e55186fe AD |
3451 | struct fb_info *info; |
3452 | int i, j, mapped; | |
3453 | ||
e614b18d AD |
3454 | if (fbcon_has_exited) |
3455 | return; | |
3456 | ||
e55186fe | 3457 | #ifdef CONFIG_ATARI |
956295d5 | 3458 | free_irq(IRQ_AUTO_4, fb_vbl_handler); |
e55186fe | 3459 | #endif |
e55186fe AD |
3460 | |
3461 | kfree((void *)softback_buf); | |
5428b044 | 3462 | softback_buf = 0UL; |
e55186fe AD |
3463 | |
3464 | for (i = 0; i < FB_MAX; i++) { | |
beaa4867 GL |
3465 | int pending; |
3466 | ||
e55186fe AD |
3467 | mapped = 0; |
3468 | info = registered_fb[i]; | |
3469 | ||
3470 | if (info == NULL) | |
3471 | continue; | |
3472 | ||
beaa4867 GL |
3473 | pending = cancel_work_sync(&info->queue); |
3474 | DPRINTK("fbcon: %s pending work\n", (pending ? "canceled" : | |
3475 | "no")); | |
3476 | ||
e614b18d AD |
3477 | for (j = first_fb_vc; j <= last_fb_vc; j++) { |
3478 | if (con2fb_map[j] == i) | |
e55186fe | 3479 | mapped = 1; |
e55186fe AD |
3480 | } |
3481 | ||
3482 | if (mapped) { | |
3483 | if (info->fbops->fb_release) | |
3484 | info->fbops->fb_release(info, 0); | |
3485 | module_put(info->fbops->owner); | |
5428b044 AD |
3486 | |
3487 | if (info->fbcon_par) { | |
e299dd4d DJ |
3488 | struct fbcon_ops *ops = info->fbcon_par; |
3489 | ||
5428b044 | 3490 | fbcon_del_cursor_timer(info); |
e299dd4d | 3491 | kfree(ops->cursor_src); |
5428b044 AD |
3492 | kfree(info->fbcon_par); |
3493 | info->fbcon_par = NULL; | |
3494 | } | |
3495 | ||
3496 | if (info->queue.func == fb_flashcursor) | |
3497 | info->queue.func = NULL; | |
e55186fe AD |
3498 | } |
3499 | } | |
3500 | ||
e614b18d | 3501 | fbcon_has_exited = 1; |
5428b044 AD |
3502 | } |
3503 | ||
3504 | static int __init fb_console_init(void) | |
3505 | { | |
3506 | int i; | |
3507 | ||
3508 | acquire_console_sem(); | |
3509 | fb_register_client(&fbcon_event_notifier); | |
77997aaa GKH |
3510 | fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), NULL, |
3511 | "fbcon"); | |
5428b044 | 3512 | |
0c6c1ce0 AD |
3513 | if (IS_ERR(fbcon_device)) { |
3514 | printk(KERN_WARNING "Unable to create device " | |
5428b044 | 3515 | "for fbcon; errno = %ld\n", |
0c6c1ce0 AD |
3516 | PTR_ERR(fbcon_device)); |
3517 | fbcon_device = NULL; | |
5428b044 | 3518 | } else |
0c6c1ce0 | 3519 | fbcon_init_device(); |
5428b044 AD |
3520 | |
3521 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
3522 | con2fb_map[i] = -1; | |
3523 | ||
3524 | release_console_sem(); | |
3525 | fbcon_start(); | |
3526 | return 0; | |
3527 | } | |
3528 | ||
3529 | module_init(fb_console_init); | |
3530 | ||
3531 | #ifdef MODULE | |
3532 | ||
0c6c1ce0 | 3533 | static void __exit fbcon_deinit_device(void) |
5428b044 AD |
3534 | { |
3535 | int i; | |
3536 | ||
0a727dea | 3537 | if (fbcon_has_sysfs) { |
0c6c1ce0 AD |
3538 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) |
3539 | device_remove_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3540 | |
3541 | fbcon_has_sysfs = 0; | |
3542 | } | |
9a179176 AD |
3543 | } |
3544 | ||
1da177e4 LT |
3545 | static void __exit fb_console_exit(void) |
3546 | { | |
3547 | acquire_console_sem(); | |
3548 | fb_unregister_client(&fbcon_event_notifier); | |
0c6c1ce0 AD |
3549 | fbcon_deinit_device(); |
3550 | device_destroy(fb_class, MKDEV(0, 0)); | |
e614b18d | 3551 | fbcon_exit(); |
1da177e4 | 3552 | release_console_sem(); |
e614b18d | 3553 | unregister_con_driver(&fb_con); |
1da177e4 LT |
3554 | } |
3555 | ||
3556 | module_exit(fb_console_exit); | |
3557 | ||
3558 | #endif | |
3559 | ||
3560 | MODULE_LICENSE("GPL"); |