]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/drivers/video/fbcon.c -- Low level frame buffer based console driver | |
3 | * | |
4 | * Copyright (C) 1995 Geert Uytterhoeven | |
5 | * | |
6 | * | |
7 | * This file is based on the original Amiga console driver (amicon.c): | |
8 | * | |
9 | * Copyright (C) 1993 Hamish Macdonald | |
10 | * Greg Harp | |
11 | * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk] | |
12 | * | |
13 | * with work by William Rucklidge (wjr@cs.cornell.edu) | |
14 | * Geert Uytterhoeven | |
15 | * Jes Sorensen (jds@kom.auc.dk) | |
16 | * Martin Apel | |
17 | * | |
18 | * and on the original Atari console driver (atacon.c): | |
19 | * | |
20 | * Copyright (C) 1993 Bjoern Brauel | |
21 | * Roman Hodek | |
22 | * | |
23 | * with work by Guenther Kelleter | |
24 | * Martin Schaller | |
25 | * Andreas Schwab | |
26 | * | |
27 | * Hardware cursor support added by Emmanuel Marty (core@ggi-project.org) | |
28 | * Smart redraw scrolling, arbitrary font width support, 512char font support | |
29 | * and software scrollback added by | |
30 | * Jakub Jelinek (jj@ultra.linux.cz) | |
31 | * | |
32 | * Random hacking by Martin Mares <mj@ucw.cz> | |
33 | * | |
34 | * 2001 - Documented with DocBook | |
35 | * - Brad Douglas <brad@neruo.com> | |
36 | * | |
37 | * The low level operations for the various display memory organizations are | |
38 | * now in separate source files. | |
39 | * | |
40 | * Currently the following organizations are supported: | |
41 | * | |
42 | * o afb Amiga bitplanes | |
43 | * o cfb{2,4,8,16,24,32} Packed pixels | |
44 | * o ilbm Amiga interleaved bitplanes | |
45 | * o iplan2p[248] Atari interleaved bitplanes | |
46 | * o mfb Monochrome | |
47 | * o vga VGA characters/attributes | |
48 | * | |
49 | * To do: | |
50 | * | |
51 | * - Implement 16 plane mode (iplan2p16) | |
52 | * | |
53 | * | |
54 | * This file is subject to the terms and conditions of the GNU General Public | |
55 | * License. See the file COPYING in the main directory of this archive for | |
56 | * more details. | |
57 | */ | |
58 | ||
59 | #undef FBCONDEBUG | |
60 | ||
1da177e4 LT |
61 | #include <linux/module.h> |
62 | #include <linux/types.h> | |
1da177e4 LT |
63 | #include <linux/fs.h> |
64 | #include <linux/kernel.h> | |
65 | #include <linux/delay.h> /* MSch: for IRQ probe */ | |
1da177e4 LT |
66 | #include <linux/console.h> |
67 | #include <linux/string.h> | |
68 | #include <linux/kd.h> | |
69 | #include <linux/slab.h> | |
70 | #include <linux/fb.h> | |
71 | #include <linux/vt_kern.h> | |
72 | #include <linux/selection.h> | |
73 | #include <linux/font.h> | |
74 | #include <linux/smp.h> | |
75 | #include <linux/init.h> | |
76 | #include <linux/interrupt.h> | |
77 | #include <linux/crc32.h> /* For counting font checksums */ | |
623e71b0 | 78 | #include <asm/fb.h> |
1da177e4 LT |
79 | #include <asm/irq.h> |
80 | #include <asm/system.h> | |
81 | #include <asm/uaccess.h> | |
82 | #ifdef CONFIG_ATARI | |
83 | #include <asm/atariints.h> | |
84 | #endif | |
85 | #ifdef CONFIG_MAC | |
86 | #include <asm/macints.h> | |
87 | #endif | |
88 | #if defined(__mc68000__) || defined(CONFIG_APUS) | |
89 | #include <asm/machdep.h> | |
90 | #include <asm/setup.h> | |
91 | #endif | |
92 | ||
93 | #include "fbcon.h" | |
94 | ||
95 | #ifdef FBCONDEBUG | |
96 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) | |
97 | #else | |
98 | # define DPRINTK(fmt, args...) | |
99 | #endif | |
100 | ||
101 | enum { | |
102 | FBCON_LOGO_CANSHOW = -1, /* the logo can be shown */ | |
103 | FBCON_LOGO_DRAW = -2, /* draw the logo to a console */ | |
104 | FBCON_LOGO_DONTSHOW = -3 /* do not show the logo */ | |
105 | }; | |
106 | ||
ab767201 | 107 | static struct display fb_display[MAX_NR_CONSOLES]; |
e4fc2761 | 108 | |
1da177e4 LT |
109 | static signed char con2fb_map[MAX_NR_CONSOLES]; |
110 | static signed char con2fb_map_boot[MAX_NR_CONSOLES]; | |
70802c60 | 111 | #ifndef MODULE |
1da177e4 | 112 | static int logo_height; |
70802c60 | 113 | #endif |
1da177e4 LT |
114 | static int logo_lines; |
115 | /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO | |
116 | enums. */ | |
117 | static int logo_shown = FBCON_LOGO_CANSHOW; | |
118 | /* Software scrollback */ | |
119 | static int fbcon_softback_size = 32768; | |
120 | static unsigned long softback_buf, softback_curr; | |
121 | static unsigned long softback_in; | |
122 | static unsigned long softback_top, softback_end; | |
123 | static int softback_lines; | |
124 | /* console mappings */ | |
125 | static int first_fb_vc; | |
126 | static int last_fb_vc = MAX_NR_CONSOLES - 1; | |
127 | static int fbcon_is_default = 1; | |
e614b18d | 128 | static int fbcon_has_exited; |
623e71b0 AD |
129 | static int primary_device = -1; |
130 | static int map_override; | |
e614b18d | 131 | |
1da177e4 LT |
132 | /* font data */ |
133 | static char fontname[40]; | |
134 | ||
135 | /* current fb_info */ | |
136 | static int info_idx = -1; | |
137 | ||
e4fc2761 AD |
138 | /* console rotation */ |
139 | static int rotate; | |
0a727dea | 140 | static int fbcon_has_sysfs; |
e4fc2761 | 141 | |
1da177e4 LT |
142 | static const struct consw fb_con; |
143 | ||
144 | #define CM_SOFTBACK (8) | |
145 | ||
146 | #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) | |
147 | ||
1da177e4 LT |
148 | static int fbcon_set_origin(struct vc_data *); |
149 | ||
150 | #define CURSOR_DRAW_DELAY (1) | |
151 | ||
152 | /* # VBL ints between cursor state changes */ | |
1da177e4 LT |
153 | #define ATARI_CURSOR_BLINK_RATE (42) |
154 | #define MAC_CURSOR_BLINK_RATE (32) | |
155 | #define DEFAULT_CURSOR_BLINK_RATE (20) | |
156 | ||
157 | static int vbl_cursor_cnt; | |
acba9cd0 | 158 | static int fbcon_cursor_noblink; |
1da177e4 LT |
159 | |
160 | #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) | |
161 | ||
162 | /* | |
163 | * Interface used by the world | |
164 | */ | |
165 | ||
166 | static const char *fbcon_startup(void); | |
167 | static void fbcon_init(struct vc_data *vc, int init); | |
168 | static void fbcon_deinit(struct vc_data *vc); | |
169 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, | |
170 | int width); | |
171 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos); | |
172 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
173 | int count, int ypos, int xpos); | |
174 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only); | |
175 | static void fbcon_cursor(struct vc_data *vc, int mode); | |
176 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
177 | int count); | |
178 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
179 | int height, int width); | |
180 | static int fbcon_switch(struct vc_data *vc); | |
181 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); | |
182 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table); | |
183 | static int fbcon_scrolldelta(struct vc_data *vc, int lines); | |
184 | ||
185 | /* | |
186 | * Internal routines | |
187 | */ | |
1da177e4 LT |
188 | static __inline__ void ywrap_up(struct vc_data *vc, int count); |
189 | static __inline__ void ywrap_down(struct vc_data *vc, int count); | |
190 | static __inline__ void ypan_up(struct vc_data *vc, int count); | |
191 | static __inline__ void ypan_down(struct vc_data *vc, int count); | |
192 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
193 | int dy, int dx, int height, int width, u_int y_break); | |
194 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
195 | struct vc_data *vc); | |
196 | static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
197 | int unit); | |
198 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
199 | int line, int count, int dy); | |
a812c94b AD |
200 | static void fbcon_modechanged(struct fb_info *info); |
201 | static void fbcon_set_all_vcs(struct fb_info *info); | |
5428b044 AD |
202 | static void fbcon_start(void); |
203 | static void fbcon_exit(void); | |
0c6c1ce0 | 204 | static struct device *fbcon_device; |
9a179176 | 205 | |
1da177e4 LT |
206 | #ifdef CONFIG_MAC |
207 | /* | |
208 | * On the Macintoy, there may or may not be a working VBL int. We need to probe | |
209 | */ | |
210 | static int vbl_detected; | |
211 | ||
7d12e780 | 212 | static irqreturn_t fb_vbl_detect(int irq, void *dummy) |
1da177e4 LT |
213 | { |
214 | vbl_detected++; | |
215 | return IRQ_HANDLED; | |
216 | } | |
217 | #endif | |
218 | ||
dbcbfe1e | 219 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION |
b73deed3 | 220 | static inline void fbcon_set_rotation(struct fb_info *info) |
dbcbfe1e AD |
221 | { |
222 | struct fbcon_ops *ops = info->fbcon_par; | |
223 | ||
224 | if (!(info->flags & FBINFO_MISC_TILEBLITTING) && | |
b73deed3 AD |
225 | ops->p->con_rotate < 4) |
226 | ops->rotate = ops->p->con_rotate; | |
dbcbfe1e AD |
227 | else |
228 | ops->rotate = 0; | |
229 | } | |
a812c94b AD |
230 | |
231 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
232 | { | |
233 | struct fbcon_ops *ops= info->fbcon_par; | |
234 | struct fb_info *fb_info; | |
235 | ||
236 | if (!ops || ops->currcon == -1) | |
237 | return; | |
238 | ||
239 | fb_info = registered_fb[con2fb_map[ops->currcon]]; | |
240 | ||
241 | if (info == fb_info) { | |
242 | struct display *p = &fb_display[ops->currcon]; | |
243 | ||
244 | if (rotate < 4) | |
245 | p->con_rotate = rotate; | |
246 | else | |
247 | p->con_rotate = 0; | |
248 | ||
249 | fbcon_modechanged(info); | |
250 | } | |
251 | } | |
252 | ||
253 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
254 | { | |
255 | struct fbcon_ops *ops = info->fbcon_par; | |
256 | struct vc_data *vc; | |
257 | struct display *p; | |
258 | int i; | |
259 | ||
260 | if (!ops || ops->currcon < 0 || rotate > 3) | |
261 | return; | |
262 | ||
e614b18d | 263 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
a812c94b AD |
264 | vc = vc_cons[i].d; |
265 | if (!vc || vc->vc_mode != KD_TEXT || | |
266 | registered_fb[con2fb_map[i]] != info) | |
267 | continue; | |
268 | ||
269 | p = &fb_display[vc->vc_num]; | |
270 | p->con_rotate = rotate; | |
271 | } | |
272 | ||
273 | fbcon_set_all_vcs(info); | |
274 | } | |
dbcbfe1e | 275 | #else |
b73deed3 | 276 | static inline void fbcon_set_rotation(struct fb_info *info) |
e4fc2761 AD |
277 | { |
278 | struct fbcon_ops *ops = info->fbcon_par; | |
279 | ||
280 | ops->rotate = FB_ROTATE_UR; | |
281 | } | |
a812c94b AD |
282 | |
283 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
284 | { | |
285 | return; | |
286 | } | |
287 | ||
288 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
289 | { | |
290 | return; | |
291 | } | |
dbcbfe1e | 292 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ |
e4fc2761 | 293 | |
a812c94b AD |
294 | static int fbcon_get_rotate(struct fb_info *info) |
295 | { | |
296 | struct fbcon_ops *ops = info->fbcon_par; | |
297 | ||
298 | return (ops) ? ops->rotate : 0; | |
299 | } | |
300 | ||
1da177e4 LT |
301 | static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) |
302 | { | |
303 | struct fbcon_ops *ops = info->fbcon_par; | |
304 | ||
305 | return (info->state != FBINFO_STATE_RUNNING || | |
306 | vc->vc_mode != KD_TEXT || ops->graphics); | |
307 | } | |
308 | ||
309 | static inline int get_color(struct vc_data *vc, struct fb_info *info, | |
310 | u16 c, int is_fg) | |
311 | { | |
b8c90945 | 312 | int depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
313 | int color = 0; |
314 | ||
315 | if (console_blanked) { | |
316 | unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; | |
317 | ||
318 | c = vc->vc_video_erase_char & charmask; | |
319 | } | |
320 | ||
321 | if (depth != 1) | |
322 | color = (is_fg) ? attr_fgcol((vc->vc_hi_font_mask) ? 9 : 8, c) | |
323 | : attr_bgcol((vc->vc_hi_font_mask) ? 13 : 12, c); | |
324 | ||
325 | switch (depth) { | |
326 | case 1: | |
327 | { | |
b8c90945 AD |
328 | int col = ~(0xfff << (max(info->var.green.length, |
329 | max(info->var.red.length, | |
330 | info->var.blue.length)))) & 0xff; | |
331 | ||
1da177e4 | 332 | /* 0 or 1 */ |
b8c90945 AD |
333 | int fg = (info->fix.visual != FB_VISUAL_MONO01) ? col : 0; |
334 | int bg = (info->fix.visual != FB_VISUAL_MONO01) ? 0 : col; | |
1da177e4 LT |
335 | |
336 | if (console_blanked) | |
337 | fg = bg; | |
338 | ||
339 | color = (is_fg) ? fg : bg; | |
340 | break; | |
341 | } | |
342 | case 2: | |
343 | /* | |
344 | * Scale down 16-colors to 4 colors. Default 4-color palette | |
2cc38ed1 AD |
345 | * is grayscale. However, simply dividing the values by 4 |
346 | * will not work, as colors 1, 2 and 3 will be scaled-down | |
347 | * to zero rendering them invisible. So empirically convert | |
348 | * colors to a sane 4-level grayscale. | |
1da177e4 | 349 | */ |
2cc38ed1 AD |
350 | switch (color) { |
351 | case 0: | |
352 | color = 0; /* black */ | |
353 | break; | |
354 | case 1 ... 6: | |
355 | color = 2; /* white */ | |
356 | break; | |
357 | case 7 ... 8: | |
358 | color = 1; /* gray */ | |
359 | break; | |
360 | default: | |
361 | color = 3; /* intense white */ | |
362 | break; | |
363 | } | |
364 | break; | |
1da177e4 LT |
365 | case 3: |
366 | /* | |
367 | * Last 8 entries of default 16-color palette is a more intense | |
368 | * version of the first 8 (i.e., same chrominance, different | |
369 | * luminance). | |
370 | */ | |
371 | color &= 7; | |
372 | break; | |
373 | } | |
374 | ||
375 | ||
376 | return color; | |
377 | } | |
378 | ||
4d9c5b6e AD |
379 | static void fbcon_update_softback(struct vc_data *vc) |
380 | { | |
381 | int l = fbcon_softback_size / vc->vc_size_row; | |
382 | ||
383 | if (l > 5) | |
384 | softback_end = softback_buf + l * vc->vc_size_row; | |
385 | else | |
386 | /* Smaller scrollback makes no sense, and 0 would screw | |
387 | the operation totally */ | |
388 | softback_top = 0; | |
389 | } | |
390 | ||
c4028958 | 391 | static void fb_flashcursor(struct work_struct *work) |
1da177e4 | 392 | { |
c4028958 | 393 | struct fb_info *info = container_of(work, struct fb_info, queue); |
1da177e4 LT |
394 | struct fbcon_ops *ops = info->fbcon_par; |
395 | struct display *p; | |
396 | struct vc_data *vc = NULL; | |
397 | int c; | |
398 | int mode; | |
399 | ||
5428b044 AD |
400 | acquire_console_sem(); |
401 | if (ops && ops->currcon != -1) | |
1da177e4 LT |
402 | vc = vc_cons[ops->currcon].d; |
403 | ||
404 | if (!vc || !CON_IS_VISIBLE(vc) || | |
dbd4f128 | 405 | registered_fb[con2fb_map[vc->vc_num]] != info || |
212f2639 | 406 | vc->vc_deccm != 1) { |
5428b044 | 407 | release_console_sem(); |
1da177e4 | 408 | return; |
5428b044 AD |
409 | } |
410 | ||
1da177e4 LT |
411 | p = &fb_display[vc->vc_num]; |
412 | c = scr_readw((u16 *) vc->vc_pos); | |
413 | mode = (!ops->cursor_flash || ops->cursor_state.enable) ? | |
414 | CM_ERASE : CM_DRAW; | |
b73deed3 | 415 | ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1), |
1da177e4 LT |
416 | get_color(vc, info, c, 0)); |
417 | release_console_sem(); | |
418 | } | |
419 | ||
41359dca | 420 | #if defined(CONFIG_ATARI) || defined(CONFIG_MAC) |
1da177e4 | 421 | static int cursor_blink_rate; |
7d12e780 | 422 | static irqreturn_t fb_vbl_handler(int irq, void *dev_id) |
1da177e4 LT |
423 | { |
424 | struct fb_info *info = dev_id; | |
425 | ||
426 | if (vbl_cursor_cnt && --vbl_cursor_cnt == 0) { | |
427 | schedule_work(&info->queue); | |
428 | vbl_cursor_cnt = cursor_blink_rate; | |
429 | } | |
430 | return IRQ_HANDLED; | |
431 | } | |
432 | #endif | |
433 | ||
434 | static void cursor_timer_handler(unsigned long dev_addr) | |
435 | { | |
436 | struct fb_info *info = (struct fb_info *) dev_addr; | |
437 | struct fbcon_ops *ops = info->fbcon_par; | |
438 | ||
439 | schedule_work(&info->queue); | |
440 | mod_timer(&ops->cursor_timer, jiffies + HZ/5); | |
441 | } | |
442 | ||
88fb2c6e AD |
443 | static void fbcon_add_cursor_timer(struct fb_info *info) |
444 | { | |
445 | struct fbcon_ops *ops = info->fbcon_par; | |
446 | ||
447 | if ((!info->queue.func || info->queue.func == fb_flashcursor) && | |
acba9cd0 AD |
448 | !(ops->flags & FBCON_FLAGS_CURSOR_TIMER) && |
449 | !fbcon_cursor_noblink) { | |
88fb2c6e | 450 | if (!info->queue.func) |
c4028958 | 451 | INIT_WORK(&info->queue, fb_flashcursor); |
88fb2c6e AD |
452 | |
453 | init_timer(&ops->cursor_timer); | |
454 | ops->cursor_timer.function = cursor_timer_handler; | |
455 | ops->cursor_timer.expires = jiffies + HZ / 5; | |
456 | ops->cursor_timer.data = (unsigned long ) info; | |
457 | add_timer(&ops->cursor_timer); | |
458 | ops->flags |= FBCON_FLAGS_CURSOR_TIMER; | |
459 | } | |
460 | } | |
461 | ||
462 | static void fbcon_del_cursor_timer(struct fb_info *info) | |
463 | { | |
464 | struct fbcon_ops *ops = info->fbcon_par; | |
465 | ||
466 | if (info->queue.func == fb_flashcursor && | |
467 | ops->flags & FBCON_FLAGS_CURSOR_TIMER) { | |
468 | del_timer_sync(&ops->cursor_timer); | |
469 | ops->flags &= ~FBCON_FLAGS_CURSOR_TIMER; | |
470 | } | |
471 | } | |
472 | ||
1da177e4 LT |
473 | #ifndef MODULE |
474 | static int __init fb_console_setup(char *this_opt) | |
475 | { | |
476 | char *options; | |
477 | int i, j; | |
478 | ||
479 | if (!this_opt || !*this_opt) | |
9b41046c | 480 | return 1; |
1da177e4 LT |
481 | |
482 | while ((options = strsep(&this_opt, ",")) != NULL) { | |
483 | if (!strncmp(options, "font:", 5)) | |
484 | strcpy(fontname, options + 5); | |
485 | ||
486 | if (!strncmp(options, "scrollback:", 11)) { | |
487 | options += 11; | |
488 | if (*options) { | |
489 | fbcon_softback_size = simple_strtoul(options, &options, 0); | |
490 | if (*options == 'k' || *options == 'K') { | |
491 | fbcon_softback_size *= 1024; | |
492 | options++; | |
493 | } | |
494 | if (*options != ',') | |
9b41046c | 495 | return 1; |
1da177e4 LT |
496 | options++; |
497 | } else | |
9b41046c | 498 | return 1; |
1da177e4 LT |
499 | } |
500 | ||
501 | if (!strncmp(options, "map:", 4)) { | |
502 | options += 4; | |
623e71b0 | 503 | if (*options) { |
1da177e4 LT |
504 | for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { |
505 | if (!options[j]) | |
506 | j = 0; | |
507 | con2fb_map_boot[i] = | |
508 | (options[j++]-'0') % FB_MAX; | |
509 | } | |
623e71b0 AD |
510 | |
511 | map_override = 1; | |
512 | } | |
513 | ||
9b41046c | 514 | return 1; |
1da177e4 LT |
515 | } |
516 | ||
517 | if (!strncmp(options, "vc:", 3)) { | |
518 | options += 3; | |
519 | if (*options) | |
520 | first_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
521 | if (first_fb_vc < 0) | |
522 | first_fb_vc = 0; | |
523 | if (*options++ == '-') | |
524 | last_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
525 | fbcon_is_default = 0; | |
526 | } | |
e4fc2761 AD |
527 | |
528 | if (!strncmp(options, "rotate:", 7)) { | |
529 | options += 7; | |
530 | if (*options) | |
531 | rotate = simple_strtoul(options, &options, 0); | |
532 | if (rotate > 3) | |
533 | rotate = 0; | |
534 | } | |
1da177e4 | 535 | } |
9b41046c | 536 | return 1; |
1da177e4 LT |
537 | } |
538 | ||
539 | __setup("fbcon=", fb_console_setup); | |
540 | #endif | |
541 | ||
542 | static int search_fb_in_map(int idx) | |
543 | { | |
544 | int i, retval = 0; | |
545 | ||
e614b18d | 546 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
547 | if (con2fb_map[i] == idx) |
548 | retval = 1; | |
549 | } | |
550 | return retval; | |
551 | } | |
552 | ||
553 | static int search_for_mapped_con(void) | |
554 | { | |
555 | int i, retval = 0; | |
556 | ||
e614b18d | 557 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
558 | if (con2fb_map[i] != -1) |
559 | retval = 1; | |
560 | } | |
561 | return retval; | |
562 | } | |
563 | ||
564 | static int fbcon_takeover(int show_logo) | |
565 | { | |
566 | int err, i; | |
567 | ||
568 | if (!num_registered_fb) | |
569 | return -ENODEV; | |
570 | ||
571 | if (!show_logo) | |
572 | logo_shown = FBCON_LOGO_DONTSHOW; | |
573 | ||
574 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
575 | con2fb_map[i] = info_idx; | |
576 | ||
577 | err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, | |
578 | fbcon_is_default); | |
e614b18d | 579 | |
1da177e4 LT |
580 | if (err) { |
581 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
582 | con2fb_map[i] = -1; | |
583 | } | |
584 | info_idx = -1; | |
585 | } | |
586 | ||
587 | return err; | |
588 | } | |
589 | ||
70802c60 AD |
590 | #ifdef MODULE |
591 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, | |
592 | int cols, int rows, int new_cols, int new_rows) | |
593 | { | |
594 | logo_shown = FBCON_LOGO_DONTSHOW; | |
595 | } | |
596 | #else | |
1da177e4 LT |
597 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, |
598 | int cols, int rows, int new_cols, int new_rows) | |
599 | { | |
600 | /* Need to make room for the logo */ | |
9c44e5f6 | 601 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
602 | int cnt, erase = vc->vc_video_erase_char, step; |
603 | unsigned short *save = NULL, *r, *q; | |
604 | ||
70802c60 AD |
605 | if (info->flags & FBINFO_MODULE) { |
606 | logo_shown = FBCON_LOGO_DONTSHOW; | |
607 | return; | |
608 | } | |
609 | ||
1da177e4 LT |
610 | /* |
611 | * remove underline attribute from erase character | |
612 | * if black and white framebuffer. | |
613 | */ | |
b8c90945 | 614 | if (fb_get_color_depth(&info->var, &info->fix) == 1) |
1da177e4 | 615 | erase &= ~0x400; |
9c44e5f6 | 616 | logo_height = fb_prepare_logo(info, ops->rotate); |
1da177e4 LT |
617 | logo_lines = (logo_height + vc->vc_font.height - 1) / |
618 | vc->vc_font.height; | |
619 | q = (unsigned short *) (vc->vc_origin + | |
620 | vc->vc_size_row * rows); | |
621 | step = logo_lines * cols; | |
622 | for (r = q - logo_lines * cols; r < q; r++) | |
623 | if (scr_readw(r) != vc->vc_video_erase_char) | |
624 | break; | |
625 | if (r != q && new_rows >= rows + logo_lines) { | |
626 | save = kmalloc(logo_lines * new_cols * 2, GFP_KERNEL); | |
627 | if (save) { | |
628 | int i = cols < new_cols ? cols : new_cols; | |
629 | scr_memsetw(save, erase, logo_lines * new_cols * 2); | |
630 | r = q - step; | |
631 | for (cnt = 0; cnt < logo_lines; cnt++, r += i) | |
632 | scr_memcpyw(save + cnt * new_cols, r, 2 * i); | |
633 | r = q; | |
634 | } | |
635 | } | |
636 | if (r == q) { | |
637 | /* We can scroll screen down */ | |
638 | r = q - step - cols; | |
639 | for (cnt = rows - logo_lines; cnt > 0; cnt--) { | |
640 | scr_memcpyw(r + step, r, vc->vc_size_row); | |
641 | r -= cols; | |
642 | } | |
643 | if (!save) { | |
250038f5 GU |
644 | int lines; |
645 | if (vc->vc_y + logo_lines >= rows) | |
646 | lines = rows - vc->vc_y - 1; | |
647 | else | |
648 | lines = logo_lines; | |
649 | vc->vc_y += lines; | |
650 | vc->vc_pos += lines * vc->vc_size_row; | |
1da177e4 LT |
651 | } |
652 | } | |
653 | scr_memsetw((unsigned short *) vc->vc_origin, | |
654 | erase, | |
655 | vc->vc_size_row * logo_lines); | |
656 | ||
657 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { | |
658 | fbcon_clear_margins(vc, 0); | |
659 | update_screen(vc); | |
660 | } | |
661 | ||
662 | if (save) { | |
663 | q = (unsigned short *) (vc->vc_origin + | |
664 | vc->vc_size_row * | |
665 | rows); | |
666 | scr_memcpyw(q, save, logo_lines * new_cols * 2); | |
667 | vc->vc_y += logo_lines; | |
668 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
669 | kfree(save); | |
670 | } | |
671 | ||
672 | if (logo_lines > vc->vc_bottom) { | |
673 | logo_shown = FBCON_LOGO_CANSHOW; | |
674 | printk(KERN_INFO | |
675 | "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); | |
676 | } else if (logo_shown != FBCON_LOGO_DONTSHOW) { | |
677 | logo_shown = FBCON_LOGO_DRAW; | |
678 | vc->vc_top = logo_lines; | |
679 | } | |
680 | } | |
70802c60 | 681 | #endif /* MODULE */ |
1da177e4 LT |
682 | |
683 | #ifdef CONFIG_FB_TILEBLITTING | |
b73deed3 | 684 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
685 | { |
686 | struct fbcon_ops *ops = info->fbcon_par; | |
687 | ||
b73deed3 | 688 | ops->p = &fb_display[vc->vc_num]; |
ab767201 | 689 | |
1da177e4 | 690 | if ((info->flags & FBINFO_MISC_TILEBLITTING)) |
b73deed3 | 691 | fbcon_set_tileops(vc, info); |
e4fc2761 | 692 | else { |
b73deed3 | 693 | fbcon_set_rotation(info); |
1da177e4 | 694 | fbcon_set_bitops(ops); |
e4fc2761 | 695 | } |
1da177e4 | 696 | } |
38b4982c AD |
697 | |
698 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
699 | { | |
700 | int err = 0; | |
701 | ||
702 | if (info->flags & FBINFO_MISC_TILEBLITTING && | |
703 | info->tileops->fb_get_tilemax(info) < charcount) | |
704 | err = 1; | |
705 | ||
706 | return err; | |
707 | } | |
1da177e4 | 708 | #else |
b73deed3 | 709 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
710 | { |
711 | struct fbcon_ops *ops = info->fbcon_par; | |
712 | ||
713 | info->flags &= ~FBINFO_MISC_TILEBLITTING; | |
b73deed3 AD |
714 | ops->p = &fb_display[vc->vc_num]; |
715 | fbcon_set_rotation(info); | |
1da177e4 LT |
716 | fbcon_set_bitops(ops); |
717 | } | |
38b4982c AD |
718 | |
719 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
720 | { | |
721 | return 0; | |
722 | } | |
723 | ||
1da177e4 LT |
724 | #endif /* CONFIG_MISC_TILEBLITTING */ |
725 | ||
726 | ||
727 | static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, | |
728 | int unit, int oldidx) | |
729 | { | |
730 | struct fbcon_ops *ops = NULL; | |
731 | int err = 0; | |
732 | ||
733 | if (!try_module_get(info->fbops->owner)) | |
734 | err = -ENODEV; | |
735 | ||
736 | if (!err && info->fbops->fb_open && | |
737 | info->fbops->fb_open(info, 0)) | |
738 | err = -ENODEV; | |
739 | ||
740 | if (!err) { | |
a39bc34e | 741 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
742 | if (!ops) |
743 | err = -ENOMEM; | |
744 | } | |
745 | ||
746 | if (!err) { | |
1da177e4 | 747 | info->fbcon_par = ops; |
b73deed3 | 748 | set_blitting_type(vc, info); |
1da177e4 LT |
749 | } |
750 | ||
751 | if (err) { | |
752 | con2fb_map[unit] = oldidx; | |
753 | module_put(info->fbops->owner); | |
754 | } | |
755 | ||
756 | return err; | |
757 | } | |
758 | ||
759 | static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo, | |
760 | struct fb_info *newinfo, int unit, | |
761 | int oldidx, int found) | |
762 | { | |
763 | struct fbcon_ops *ops = oldinfo->fbcon_par; | |
764 | int err = 0; | |
765 | ||
766 | if (oldinfo->fbops->fb_release && | |
767 | oldinfo->fbops->fb_release(oldinfo, 0)) { | |
768 | con2fb_map[unit] = oldidx; | |
769 | if (!found && newinfo->fbops->fb_release) | |
770 | newinfo->fbops->fb_release(newinfo, 0); | |
771 | if (!found) | |
772 | module_put(newinfo->fbops->owner); | |
773 | err = -ENODEV; | |
774 | } | |
775 | ||
776 | if (!err) { | |
88fb2c6e | 777 | fbcon_del_cursor_timer(oldinfo); |
1da177e4 LT |
778 | kfree(ops->cursor_state.mask); |
779 | kfree(ops->cursor_data); | |
e4fc2761 | 780 | kfree(ops->fontbuffer); |
1da177e4 LT |
781 | kfree(oldinfo->fbcon_par); |
782 | oldinfo->fbcon_par = NULL; | |
783 | module_put(oldinfo->fbops->owner); | |
dd0314f7 AD |
784 | /* |
785 | If oldinfo and newinfo are driving the same hardware, | |
786 | the fb_release() method of oldinfo may attempt to | |
787 | restore the hardware state. This will leave the | |
788 | newinfo in an undefined state. Thus, a call to | |
789 | fb_set_par() may be needed for the newinfo. | |
790 | */ | |
791 | if (newinfo->fbops->fb_set_par) | |
792 | newinfo->fbops->fb_set_par(newinfo); | |
1da177e4 LT |
793 | } |
794 | ||
795 | return err; | |
796 | } | |
797 | ||
1da177e4 LT |
798 | static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, |
799 | int unit, int show_logo) | |
800 | { | |
801 | struct fbcon_ops *ops = info->fbcon_par; | |
802 | ||
803 | ops->currcon = fg_console; | |
804 | ||
805 | if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) | |
806 | info->fbops->fb_set_par(info); | |
807 | ||
808 | ops->flags |= FBCON_FLAGS_INIT; | |
809 | ops->graphics = 0; | |
810 | ||
811 | if (vc) | |
812 | fbcon_set_disp(info, &info->var, vc); | |
813 | else | |
814 | fbcon_preset_disp(info, &info->var, unit); | |
815 | ||
816 | if (show_logo) { | |
817 | struct vc_data *fg_vc = vc_cons[fg_console].d; | |
818 | struct fb_info *fg_info = | |
819 | registered_fb[con2fb_map[fg_console]]; | |
820 | ||
821 | fbcon_prepare_logo(fg_vc, fg_info, fg_vc->vc_cols, | |
822 | fg_vc->vc_rows, fg_vc->vc_cols, | |
823 | fg_vc->vc_rows); | |
824 | } | |
825 | ||
826 | update_screen(vc_cons[fg_console].d); | |
827 | } | |
828 | ||
829 | /** | |
830 | * set_con2fb_map - map console to frame buffer device | |
831 | * @unit: virtual console number to map | |
832 | * @newidx: frame buffer index to map virtual console to | |
833 | * @user: user request | |
834 | * | |
835 | * Maps a virtual console @unit to a frame buffer device | |
836 | * @newidx. | |
837 | */ | |
838 | static int set_con2fb_map(int unit, int newidx, int user) | |
839 | { | |
840 | struct vc_data *vc = vc_cons[unit].d; | |
841 | int oldidx = con2fb_map[unit]; | |
842 | struct fb_info *info = registered_fb[newidx]; | |
843 | struct fb_info *oldinfo = NULL; | |
844 | int found, err = 0; | |
845 | ||
846 | if (oldidx == newidx) | |
847 | return 0; | |
848 | ||
e614b18d AD |
849 | if (!info || fbcon_has_exited) |
850 | return -EINVAL; | |
1da177e4 LT |
851 | |
852 | if (!err && !search_for_mapped_con()) { | |
853 | info_idx = newidx; | |
854 | return fbcon_takeover(0); | |
855 | } | |
856 | ||
857 | if (oldidx != -1) | |
858 | oldinfo = registered_fb[oldidx]; | |
859 | ||
860 | found = search_fb_in_map(newidx); | |
861 | ||
862 | acquire_console_sem(); | |
863 | con2fb_map[unit] = newidx; | |
864 | if (!err && !found) | |
865 | err = con2fb_acquire_newinfo(vc, info, unit, oldidx); | |
866 | ||
867 | ||
868 | /* | |
869 | * If old fb is not mapped to any of the consoles, | |
870 | * fbcon should release it. | |
871 | */ | |
872 | if (!err && oldinfo && !search_fb_in_map(oldidx)) | |
873 | err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx, | |
874 | found); | |
875 | ||
876 | if (!err) { | |
877 | int show_logo = (fg_console == 0 && !user && | |
878 | logo_shown != FBCON_LOGO_DONTSHOW); | |
879 | ||
880 | if (!found) | |
88fb2c6e | 881 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
882 | con2fb_map_boot[unit] = newidx; |
883 | con2fb_init_display(vc, info, unit, show_logo); | |
884 | } | |
885 | ||
e614b18d AD |
886 | if (!search_fb_in_map(info_idx)) |
887 | info_idx = newidx; | |
888 | ||
1da177e4 LT |
889 | release_console_sem(); |
890 | return err; | |
891 | } | |
892 | ||
893 | /* | |
894 | * Low Level Operations | |
895 | */ | |
896 | /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ | |
897 | static int var_to_display(struct display *disp, | |
898 | struct fb_var_screeninfo *var, | |
899 | struct fb_info *info) | |
900 | { | |
901 | disp->xres_virtual = var->xres_virtual; | |
902 | disp->yres_virtual = var->yres_virtual; | |
903 | disp->bits_per_pixel = var->bits_per_pixel; | |
904 | disp->grayscale = var->grayscale; | |
905 | disp->nonstd = var->nonstd; | |
906 | disp->accel_flags = var->accel_flags; | |
907 | disp->height = var->height; | |
908 | disp->width = var->width; | |
909 | disp->red = var->red; | |
910 | disp->green = var->green; | |
911 | disp->blue = var->blue; | |
912 | disp->transp = var->transp; | |
913 | disp->rotate = var->rotate; | |
914 | disp->mode = fb_match_mode(var, &info->modelist); | |
915 | if (disp->mode == NULL) | |
916 | /* This should not happen */ | |
917 | return -EINVAL; | |
918 | return 0; | |
919 | } | |
920 | ||
921 | static void display_to_var(struct fb_var_screeninfo *var, | |
922 | struct display *disp) | |
923 | { | |
924 | fb_videomode_to_var(var, disp->mode); | |
925 | var->xres_virtual = disp->xres_virtual; | |
926 | var->yres_virtual = disp->yres_virtual; | |
927 | var->bits_per_pixel = disp->bits_per_pixel; | |
928 | var->grayscale = disp->grayscale; | |
929 | var->nonstd = disp->nonstd; | |
930 | var->accel_flags = disp->accel_flags; | |
931 | var->height = disp->height; | |
932 | var->width = disp->width; | |
933 | var->red = disp->red; | |
934 | var->green = disp->green; | |
935 | var->blue = disp->blue; | |
936 | var->transp = disp->transp; | |
937 | var->rotate = disp->rotate; | |
938 | } | |
939 | ||
940 | static const char *fbcon_startup(void) | |
941 | { | |
942 | const char *display_desc = "frame buffer device"; | |
943 | struct display *p = &fb_display[fg_console]; | |
944 | struct vc_data *vc = vc_cons[fg_console].d; | |
2f4516db | 945 | const struct font_desc *font = NULL; |
1da177e4 LT |
946 | struct module *owner; |
947 | struct fb_info *info = NULL; | |
948 | struct fbcon_ops *ops; | |
949 | int rows, cols; | |
950 | int irqres; | |
951 | ||
952 | irqres = 1; | |
953 | /* | |
954 | * If num_registered_fb is zero, this is a call for the dummy part. | |
955 | * The frame buffer devices weren't initialized yet. | |
956 | */ | |
957 | if (!num_registered_fb || info_idx == -1) | |
958 | return display_desc; | |
959 | /* | |
960 | * Instead of blindly using registered_fb[0], we use info_idx, set by | |
961 | * fb_console_init(); | |
962 | */ | |
963 | info = registered_fb[info_idx]; | |
964 | if (!info) | |
965 | return NULL; | |
966 | ||
967 | owner = info->fbops->owner; | |
968 | if (!try_module_get(owner)) | |
969 | return NULL; | |
970 | if (info->fbops->fb_open && info->fbops->fb_open(info, 0)) { | |
971 | module_put(owner); | |
972 | return NULL; | |
973 | } | |
974 | ||
a39bc34e | 975 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
976 | if (!ops) { |
977 | module_put(owner); | |
978 | return NULL; | |
979 | } | |
980 | ||
1da177e4 LT |
981 | ops->currcon = -1; |
982 | ops->graphics = 1; | |
e4fc2761 | 983 | ops->cur_rotate = -1; |
1da177e4 | 984 | info->fbcon_par = ops; |
e4fc2761 | 985 | p->con_rotate = rotate; |
b73deed3 | 986 | set_blitting_type(vc, info); |
1da177e4 LT |
987 | |
988 | if (info->fix.type != FB_TYPE_TEXT) { | |
989 | if (fbcon_softback_size) { | |
990 | if (!softback_buf) { | |
991 | softback_buf = | |
992 | (unsigned long) | |
993 | kmalloc(fbcon_softback_size, | |
994 | GFP_KERNEL); | |
995 | if (!softback_buf) { | |
996 | fbcon_softback_size = 0; | |
997 | softback_top = 0; | |
998 | } | |
999 | } | |
1000 | } else { | |
1001 | if (softback_buf) { | |
1002 | kfree((void *) softback_buf); | |
1003 | softback_buf = 0; | |
1004 | softback_top = 0; | |
1005 | } | |
1006 | } | |
1007 | if (softback_buf) | |
1008 | softback_in = softback_top = softback_curr = | |
1009 | softback_buf; | |
1010 | softback_lines = 0; | |
1011 | } | |
1012 | ||
1013 | /* Setup default font */ | |
1014 | if (!p->fontdata) { | |
1015 | if (!fontname[0] || !(font = find_font(fontname))) | |
1016 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1017 | info->var.yres, |
1018 | info->pixmap.blit_x, | |
1019 | info->pixmap.blit_y); | |
1da177e4 LT |
1020 | vc->vc_font.width = font->width; |
1021 | vc->vc_font.height = font->height; | |
2f4516db | 1022 | vc->vc_font.data = (void *)(p->fontdata = font->data); |
1da177e4 LT |
1023 | vc->vc_font.charcount = 256; /* FIXME Need to support more fonts */ |
1024 | } | |
1025 | ||
e4fc2761 AD |
1026 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1027 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1028 | cols /= vc->vc_font.width; | |
1029 | rows /= vc->vc_font.height; | |
1da177e4 LT |
1030 | vc_resize(vc, cols, rows); |
1031 | ||
1032 | DPRINTK("mode: %s\n", info->fix.id); | |
1033 | DPRINTK("visual: %d\n", info->fix.visual); | |
1034 | DPRINTK("res: %dx%d-%d\n", info->var.xres, | |
1035 | info->var.yres, | |
1036 | info->var.bits_per_pixel); | |
1037 | ||
1038 | #ifdef CONFIG_ATARI | |
1039 | if (MACH_IS_ATARI) { | |
1040 | cursor_blink_rate = ATARI_CURSOR_BLINK_RATE; | |
1041 | irqres = | |
1042 | request_irq(IRQ_AUTO_4, fb_vbl_handler, | |
1043 | IRQ_TYPE_PRIO, "framebuffer vbl", | |
1044 | info); | |
1045 | } | |
1046 | #endif /* CONFIG_ATARI */ | |
1047 | ||
1048 | #ifdef CONFIG_MAC | |
1049 | /* | |
1050 | * On a Macintoy, the VBL interrupt may or may not be active. | |
1051 | * As interrupt based cursor is more reliable and race free, we | |
1052 | * probe for VBL interrupts. | |
1053 | */ | |
1054 | if (MACH_IS_MAC) { | |
1055 | int ct = 0; | |
1056 | /* | |
1057 | * Probe for VBL: set temp. handler ... | |
1058 | */ | |
1059 | irqres = request_irq(IRQ_MAC_VBL, fb_vbl_detect, 0, | |
1060 | "framebuffer vbl", info); | |
1061 | vbl_detected = 0; | |
1062 | ||
1063 | /* | |
1064 | * ... and spin for 20 ms ... | |
1065 | */ | |
1066 | while (!vbl_detected && ++ct < 1000) | |
1067 | udelay(20); | |
1068 | ||
1069 | if (ct == 1000) | |
1070 | printk | |
1071 | ("fbcon_startup: No VBL detected, using timer based cursor.\n"); | |
1072 | ||
1073 | free_irq(IRQ_MAC_VBL, fb_vbl_detect); | |
1074 | ||
1075 | if (vbl_detected) { | |
1076 | /* | |
1077 | * interrupt based cursor ok | |
1078 | */ | |
1079 | cursor_blink_rate = MAC_CURSOR_BLINK_RATE; | |
1080 | irqres = | |
1081 | request_irq(IRQ_MAC_VBL, fb_vbl_handler, 0, | |
1082 | "framebuffer vbl", info); | |
1083 | } else { | |
1084 | /* | |
1085 | * VBL not detected: fall through, use timer based cursor | |
1086 | */ | |
1087 | irqres = 1; | |
1088 | } | |
1089 | } | |
1090 | #endif /* CONFIG_MAC */ | |
1091 | ||
88fb2c6e | 1092 | fbcon_add_cursor_timer(info); |
e614b18d | 1093 | fbcon_has_exited = 0; |
1da177e4 LT |
1094 | return display_desc; |
1095 | } | |
1096 | ||
1097 | static void fbcon_init(struct vc_data *vc, int init) | |
1098 | { | |
1099 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1100 | struct fbcon_ops *ops; | |
1101 | struct vc_data **default_mode = vc->vc_display_fg; | |
1102 | struct vc_data *svc = *default_mode; | |
1103 | struct display *t, *p = &fb_display[vc->vc_num]; | |
1104 | int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; | |
306958e8 | 1105 | int cap; |
1da177e4 LT |
1106 | |
1107 | if (info_idx == -1 || info == NULL) | |
1108 | return; | |
306958e8 AB |
1109 | |
1110 | cap = info->flags; | |
1111 | ||
1da177e4 LT |
1112 | if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || |
1113 | (info->fix.type == FB_TYPE_TEXT)) | |
1114 | logo = 0; | |
1115 | ||
1da177e4 LT |
1116 | if (var_to_display(p, &info->var, info)) |
1117 | return; | |
1118 | ||
1119 | /* If we are not the first console on this | |
1120 | fb, copy the font from that console */ | |
e614b18d AD |
1121 | t = &fb_display[fg_console]; |
1122 | if (!p->fontdata) { | |
1123 | if (t->fontdata) { | |
1124 | struct vc_data *fvc = vc_cons[fg_console].d; | |
1125 | ||
1126 | vc->vc_font.data = (void *)(p->fontdata = | |
1127 | fvc->vc_font.data); | |
1128 | vc->vc_font.width = fvc->vc_font.width; | |
1129 | vc->vc_font.height = fvc->vc_font.height; | |
1130 | p->userfont = t->userfont; | |
1131 | ||
1132 | if (p->userfont) | |
1133 | REFCOUNT(p->fontdata)++; | |
1134 | } else { | |
1135 | const struct font_desc *font = NULL; | |
1136 | ||
1137 | if (!fontname[0] || !(font = find_font(fontname))) | |
1138 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1139 | info->var.yres, |
1140 | info->pixmap.blit_x, | |
1141 | info->pixmap.blit_y); | |
e614b18d AD |
1142 | vc->vc_font.width = font->width; |
1143 | vc->vc_font.height = font->height; | |
1144 | vc->vc_font.data = (void *)(p->fontdata = font->data); | |
1145 | vc->vc_font.charcount = 256; /* FIXME Need to | |
1146 | support more fonts */ | |
1147 | } | |
1da177e4 | 1148 | } |
e614b18d | 1149 | |
1da177e4 LT |
1150 | if (p->userfont) |
1151 | charcnt = FNTCHARCNT(p->fontdata); | |
e614b18d | 1152 | |
b8c90945 | 1153 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1154 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1155 | if (charcnt == 256) { | |
1156 | vc->vc_hi_font_mask = 0; | |
1157 | } else { | |
1158 | vc->vc_hi_font_mask = 0x100; | |
1159 | if (vc->vc_can_do_color) | |
1160 | vc->vc_complement_mask <<= 1; | |
1161 | } | |
1162 | ||
1163 | if (!*svc->vc_uni_pagedir_loc) | |
1164 | con_set_default_unimap(svc); | |
1165 | if (!*vc->vc_uni_pagedir_loc) | |
1166 | con_copy_unimap(vc, svc); | |
1167 | ||
e4fc2761 AD |
1168 | ops = info->fbcon_par; |
1169 | p->con_rotate = rotate; | |
b73deed3 | 1170 | set_blitting_type(vc, info); |
e4fc2761 | 1171 | |
1da177e4 LT |
1172 | cols = vc->vc_cols; |
1173 | rows = vc->vc_rows; | |
e4fc2761 AD |
1174 | new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1175 | new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1176 | new_cols /= vc->vc_font.width; | |
1177 | new_rows /= vc->vc_font.height; | |
1da177e4 LT |
1178 | vc_resize(vc, new_cols, new_rows); |
1179 | ||
1da177e4 LT |
1180 | /* |
1181 | * We must always set the mode. The mode of the previous console | |
1182 | * driver could be in the same resolution but we are using different | |
1183 | * hardware so we have to initialize the hardware. | |
1184 | * | |
1185 | * We need to do it in fbcon_init() to prevent screen corruption. | |
1186 | */ | |
d354d9af | 1187 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { |
1da177e4 LT |
1188 | if (info->fbops->fb_set_par && |
1189 | !(ops->flags & FBCON_FLAGS_INIT)) | |
1190 | info->fbops->fb_set_par(info); | |
1191 | ops->flags |= FBCON_FLAGS_INIT; | |
1192 | } | |
1193 | ||
1194 | ops->graphics = 0; | |
1195 | ||
1196 | if ((cap & FBINFO_HWACCEL_COPYAREA) && | |
1197 | !(cap & FBINFO_HWACCEL_DISABLED)) | |
1198 | p->scrollmode = SCROLL_MOVE; | |
1199 | else /* default to something safe */ | |
1200 | p->scrollmode = SCROLL_REDRAW; | |
1201 | ||
1202 | /* | |
1203 | * ++guenther: console.c:vc_allocate() relies on initializing | |
1204 | * vc_{cols,rows}, but we must not set those if we are only | |
1205 | * resizing the console. | |
1206 | */ | |
1207 | if (!init) { | |
1208 | vc->vc_cols = new_cols; | |
1209 | vc->vc_rows = new_rows; | |
1210 | } | |
1211 | ||
1212 | if (logo) | |
1213 | fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); | |
1214 | ||
4d9c5b6e AD |
1215 | if (vc == svc && softback_buf) |
1216 | fbcon_update_softback(vc); | |
e4fc2761 | 1217 | |
b73deed3 | 1218 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 1219 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 1220 | set_blitting_type(vc, info); |
e4fc2761 AD |
1221 | } |
1222 | ||
1a37d5f5 | 1223 | ops->p = &fb_display[fg_console]; |
1da177e4 LT |
1224 | } |
1225 | ||
e614b18d AD |
1226 | static void fbcon_free_font(struct display *p) |
1227 | { | |
1228 | if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0)) | |
1229 | kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int)); | |
1230 | p->fontdata = NULL; | |
1231 | p->userfont = 0; | |
1232 | } | |
1233 | ||
1da177e4 LT |
1234 | static void fbcon_deinit(struct vc_data *vc) |
1235 | { | |
1236 | struct display *p = &fb_display[vc->vc_num]; | |
e614b18d AD |
1237 | struct fb_info *info; |
1238 | struct fbcon_ops *ops; | |
1239 | int idx; | |
1da177e4 | 1240 | |
1da177e4 | 1241 | fbcon_free_font(p); |
e614b18d AD |
1242 | idx = con2fb_map[vc->vc_num]; |
1243 | ||
1244 | if (idx == -1) | |
1245 | goto finished; | |
1246 | ||
1247 | info = registered_fb[idx]; | |
1248 | ||
1249 | if (!info) | |
1250 | goto finished; | |
1251 | ||
1252 | ops = info->fbcon_par; | |
1253 | ||
1254 | if (!ops) | |
1255 | goto finished; | |
1256 | ||
1257 | if (CON_IS_VISIBLE(vc)) | |
1258 | fbcon_del_cursor_timer(info); | |
1259 | ||
1260 | ops->flags &= ~FBCON_FLAGS_INIT; | |
1261 | finished: | |
1262 | ||
1263 | if (!con_is_bound(&fb_con)) | |
1264 | fbcon_exit(); | |
1265 | ||
1266 | return; | |
1da177e4 LT |
1267 | } |
1268 | ||
1269 | /* ====================================================================== */ | |
1270 | ||
1271 | /* fbcon_XXX routines - interface used by the world | |
1272 | * | |
1273 | * This system is now divided into two levels because of complications | |
1274 | * caused by hardware scrolling. Top level functions: | |
1275 | * | |
1276 | * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins() | |
1277 | * | |
1278 | * handles y values in range [0, scr_height-1] that correspond to real | |
1279 | * screen positions. y_wrap shift means that first line of bitmap may be | |
1280 | * anywhere on this display. These functions convert lineoffsets to | |
1281 | * bitmap offsets and deal with the wrap-around case by splitting blits. | |
1282 | * | |
1283 | * fbcon_bmove_physical_8() -- These functions fast implementations | |
1284 | * fbcon_clear_physical_8() -- of original fbcon_XXX fns. | |
1285 | * fbcon_putc_physical_8() -- (font width != 8) may be added later | |
1286 | * | |
1287 | * WARNING: | |
1288 | * | |
1289 | * At the moment fbcon_putc() cannot blit across vertical wrap boundary | |
1290 | * Implies should only really hardware scroll in rows. Only reason for | |
1291 | * restriction is simplicity & efficiency at the moment. | |
1292 | */ | |
1293 | ||
1da177e4 LT |
1294 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, |
1295 | int width) | |
1296 | { | |
1297 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1298 | struct fbcon_ops *ops = info->fbcon_par; | |
1299 | ||
1300 | struct display *p = &fb_display[vc->vc_num]; | |
1301 | u_int y_break; | |
1302 | ||
1303 | if (fbcon_is_inactive(vc, info)) | |
1304 | return; | |
1305 | ||
1306 | if (!height || !width) | |
1307 | return; | |
1308 | ||
1309 | /* Split blits that cross physical y_wrap boundary */ | |
1310 | ||
1311 | y_break = p->vrows - p->yscroll; | |
1312 | if (sy < y_break && sy + height - 1 >= y_break) { | |
1313 | u_int b = y_break - sy; | |
1314 | ops->clear(vc, info, real_y(p, sy), sx, b, width); | |
1315 | ops->clear(vc, info, real_y(p, sy + b), sx, height - b, | |
1316 | width); | |
1317 | } else | |
1318 | ops->clear(vc, info, real_y(p, sy), sx, height, width); | |
1319 | } | |
1320 | ||
1321 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
1322 | int count, int ypos, int xpos) | |
1323 | { | |
1324 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1325 | struct display *p = &fb_display[vc->vc_num]; | |
1326 | struct fbcon_ops *ops = info->fbcon_par; | |
1327 | ||
1328 | if (!fbcon_is_inactive(vc, info)) | |
1329 | ops->putcs(vc, info, s, count, real_y(p, ypos), xpos, | |
1330 | get_color(vc, info, scr_readw(s), 1), | |
1331 | get_color(vc, info, scr_readw(s), 0)); | |
1332 | } | |
1333 | ||
1334 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos) | |
1335 | { | |
1336 | unsigned short chr; | |
1337 | ||
1338 | scr_writew(c, &chr); | |
1339 | fbcon_putcs(vc, &chr, 1, ypos, xpos); | |
1340 | } | |
1341 | ||
1342 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) | |
1343 | { | |
1344 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1345 | struct fbcon_ops *ops = info->fbcon_par; | |
1346 | ||
1347 | if (!fbcon_is_inactive(vc, info)) | |
1348 | ops->clear_margins(vc, info, bottom_only); | |
1349 | } | |
1350 | ||
1351 | static void fbcon_cursor(struct vc_data *vc, int mode) | |
1352 | { | |
1353 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1354 | struct fbcon_ops *ops = info->fbcon_par; | |
1da177e4 LT |
1355 | int y; |
1356 | int c = scr_readw((u16 *) vc->vc_pos); | |
1357 | ||
d1e23066 | 1358 | if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1) |
1da177e4 LT |
1359 | return; |
1360 | ||
acba9cd0 AD |
1361 | if (vc->vc_cursor_type & 0x10) |
1362 | fbcon_del_cursor_timer(info); | |
1363 | else | |
1364 | fbcon_add_cursor_timer(info); | |
1365 | ||
1da177e4 LT |
1366 | ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; |
1367 | if (mode & CM_SOFTBACK) { | |
1368 | mode &= ~CM_SOFTBACK; | |
1369 | y = softback_lines; | |
1370 | } else { | |
1371 | if (softback_lines) | |
1372 | fbcon_set_origin(vc); | |
1373 | y = 0; | |
1374 | } | |
1375 | ||
b73deed3 | 1376 | ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1), |
1da177e4 LT |
1377 | get_color(vc, info, c, 0)); |
1378 | vbl_cursor_cnt = CURSOR_DRAW_DELAY; | |
1379 | } | |
1380 | ||
1381 | static int scrollback_phys_max = 0; | |
1382 | static int scrollback_max = 0; | |
1383 | static int scrollback_current = 0; | |
1384 | ||
1da177e4 LT |
1385 | /* |
1386 | * If no vc is existent yet, just set struct display | |
1387 | */ | |
1388 | static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
1389 | int unit) | |
1390 | { | |
1391 | struct display *p = &fb_display[unit]; | |
1392 | struct display *t = &fb_display[fg_console]; | |
1393 | ||
1da177e4 LT |
1394 | if (var_to_display(p, var, info)) |
1395 | return; | |
1396 | ||
1397 | p->fontdata = t->fontdata; | |
1398 | p->userfont = t->userfont; | |
1399 | if (p->userfont) | |
1400 | REFCOUNT(p->fontdata)++; | |
1401 | } | |
1402 | ||
1403 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
1404 | struct vc_data *vc) | |
1405 | { | |
1406 | struct display *p = &fb_display[vc->vc_num], *t; | |
1407 | struct vc_data **default_mode = vc->vc_display_fg; | |
1408 | struct vc_data *svc = *default_mode; | |
e4fc2761 | 1409 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1410 | int rows, cols, charcnt = 256; |
1411 | ||
1da177e4 LT |
1412 | if (var_to_display(p, var, info)) |
1413 | return; | |
1414 | t = &fb_display[svc->vc_num]; | |
1415 | if (!vc->vc_font.data) { | |
2f4516db | 1416 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1417 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1418 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1419 | p->userfont = t->userfont; | |
1420 | if (p->userfont) | |
1421 | REFCOUNT(p->fontdata)++; | |
1422 | } | |
1423 | if (p->userfont) | |
1424 | charcnt = FNTCHARCNT(p->fontdata); | |
1425 | ||
b8c90945 AD |
1426 | var->activate = FB_ACTIVATE_NOW; |
1427 | info->var.activate = var->activate; | |
e4fc2761 AD |
1428 | var->yoffset = info->var.yoffset; |
1429 | var->xoffset = info->var.xoffset; | |
b8c90945 | 1430 | fb_set_var(info, var); |
e4fc2761 | 1431 | ops->var = info->var; |
b8c90945 | 1432 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1433 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1434 | if (charcnt == 256) { | |
1435 | vc->vc_hi_font_mask = 0; | |
1436 | } else { | |
1437 | vc->vc_hi_font_mask = 0x100; | |
1438 | if (vc->vc_can_do_color) | |
1439 | vc->vc_complement_mask <<= 1; | |
1440 | } | |
1441 | ||
1442 | if (!*svc->vc_uni_pagedir_loc) | |
1443 | con_set_default_unimap(svc); | |
1444 | if (!*vc->vc_uni_pagedir_loc) | |
1445 | con_copy_unimap(vc, svc); | |
1446 | ||
e4fc2761 AD |
1447 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1448 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1449 | cols /= vc->vc_font.width; | |
1450 | rows /= vc->vc_font.height; | |
1da177e4 | 1451 | vc_resize(vc, cols, rows); |
e4fc2761 | 1452 | |
1da177e4 LT |
1453 | if (CON_IS_VISIBLE(vc)) { |
1454 | update_screen(vc); | |
4d9c5b6e AD |
1455 | if (softback_buf) |
1456 | fbcon_update_softback(vc); | |
1da177e4 LT |
1457 | } |
1458 | } | |
1459 | ||
1460 | static __inline__ void ywrap_up(struct vc_data *vc, int count) | |
1461 | { | |
1462 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1463 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1464 | struct display *p = &fb_display[vc->vc_num]; |
1465 | ||
1466 | p->yscroll += count; | |
1467 | if (p->yscroll >= p->vrows) /* Deal with wrap */ | |
1468 | p->yscroll -= p->vrows; | |
e4fc2761 AD |
1469 | ops->var.xoffset = 0; |
1470 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1471 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1472 | ops->update_start(info); | |
1da177e4 LT |
1473 | scrollback_max += count; |
1474 | if (scrollback_max > scrollback_phys_max) | |
1475 | scrollback_max = scrollback_phys_max; | |
1476 | scrollback_current = 0; | |
1477 | } | |
1478 | ||
1479 | static __inline__ void ywrap_down(struct vc_data *vc, int count) | |
1480 | { | |
1481 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1482 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1483 | struct display *p = &fb_display[vc->vc_num]; |
1484 | ||
1485 | p->yscroll -= count; | |
1486 | if (p->yscroll < 0) /* Deal with wrap */ | |
1487 | p->yscroll += p->vrows; | |
e4fc2761 AD |
1488 | ops->var.xoffset = 0; |
1489 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1490 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1491 | ops->update_start(info); | |
1da177e4 LT |
1492 | scrollback_max -= count; |
1493 | if (scrollback_max < 0) | |
1494 | scrollback_max = 0; | |
1495 | scrollback_current = 0; | |
1496 | } | |
1497 | ||
1498 | static __inline__ void ypan_up(struct vc_data *vc, int count) | |
1499 | { | |
1500 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1501 | struct display *p = &fb_display[vc->vc_num]; | |
1502 | struct fbcon_ops *ops = info->fbcon_par; | |
1503 | ||
1504 | p->yscroll += count; | |
1505 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1506 | ops->bmove(vc, info, p->vrows - vc->vc_rows, | |
1507 | 0, 0, 0, vc->vc_rows, vc->vc_cols); | |
1508 | p->yscroll -= p->vrows - vc->vc_rows; | |
1509 | } | |
e4fc2761 AD |
1510 | |
1511 | ops->var.xoffset = 0; | |
1512 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1513 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1514 | ops->update_start(info); | |
1da177e4 LT |
1515 | fbcon_clear_margins(vc, 1); |
1516 | scrollback_max += count; | |
1517 | if (scrollback_max > scrollback_phys_max) | |
1518 | scrollback_max = scrollback_phys_max; | |
1519 | scrollback_current = 0; | |
1520 | } | |
1521 | ||
1522 | static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count) | |
1523 | { | |
1524 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1525 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1526 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1527 | |
1528 | p->yscroll += count; | |
a39bc34e | 1529 | |
1da177e4 LT |
1530 | if (p->yscroll > p->vrows - vc->vc_rows) { |
1531 | p->yscroll -= p->vrows - vc->vc_rows; | |
1da177e4 | 1532 | fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t); |
a39bc34e | 1533 | } |
e4fc2761 AD |
1534 | |
1535 | ops->var.xoffset = 0; | |
1536 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1537 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1538 | ops->update_start(info); | |
1da177e4 LT |
1539 | fbcon_clear_margins(vc, 1); |
1540 | scrollback_max += count; | |
1541 | if (scrollback_max > scrollback_phys_max) | |
1542 | scrollback_max = scrollback_phys_max; | |
1543 | scrollback_current = 0; | |
1544 | } | |
1545 | ||
1546 | static __inline__ void ypan_down(struct vc_data *vc, int count) | |
1547 | { | |
1548 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1549 | struct display *p = &fb_display[vc->vc_num]; | |
1550 | struct fbcon_ops *ops = info->fbcon_par; | |
1551 | ||
1552 | p->yscroll -= count; | |
1553 | if (p->yscroll < 0) { | |
1554 | ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows, | |
1555 | 0, vc->vc_rows, vc->vc_cols); | |
1556 | p->yscroll += p->vrows - vc->vc_rows; | |
1557 | } | |
e4fc2761 AD |
1558 | |
1559 | ops->var.xoffset = 0; | |
1560 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1561 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1562 | ops->update_start(info); | |
1da177e4 LT |
1563 | fbcon_clear_margins(vc, 1); |
1564 | scrollback_max -= count; | |
1565 | if (scrollback_max < 0) | |
1566 | scrollback_max = 0; | |
1567 | scrollback_current = 0; | |
1568 | } | |
1569 | ||
1570 | static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) | |
1571 | { | |
1572 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1573 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1574 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1575 | |
1576 | p->yscroll -= count; | |
a39bc34e | 1577 | |
1da177e4 LT |
1578 | if (p->yscroll < 0) { |
1579 | p->yscroll += p->vrows - vc->vc_rows; | |
1da177e4 | 1580 | fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count); |
a39bc34e | 1581 | } |
e4fc2761 AD |
1582 | |
1583 | ops->var.xoffset = 0; | |
1584 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1585 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1586 | ops->update_start(info); | |
1da177e4 LT |
1587 | fbcon_clear_margins(vc, 1); |
1588 | scrollback_max -= count; | |
1589 | if (scrollback_max < 0) | |
1590 | scrollback_max = 0; | |
1591 | scrollback_current = 0; | |
1592 | } | |
1593 | ||
1594 | static void fbcon_redraw_softback(struct vc_data *vc, struct display *p, | |
1595 | long delta) | |
1596 | { | |
1597 | int count = vc->vc_rows; | |
1598 | unsigned short *d, *s; | |
1599 | unsigned long n; | |
1600 | int line = 0; | |
1601 | ||
1602 | d = (u16 *) softback_curr; | |
1603 | if (d == (u16 *) softback_in) | |
1604 | d = (u16 *) vc->vc_origin; | |
1605 | n = softback_curr + delta * vc->vc_size_row; | |
1606 | softback_lines -= delta; | |
1607 | if (delta < 0) { | |
1608 | if (softback_curr < softback_top && n < softback_buf) { | |
1609 | n += softback_end - softback_buf; | |
1610 | if (n < softback_top) { | |
1611 | softback_lines -= | |
1612 | (softback_top - n) / vc->vc_size_row; | |
1613 | n = softback_top; | |
1614 | } | |
1615 | } else if (softback_curr >= softback_top | |
1616 | && n < softback_top) { | |
1617 | softback_lines -= | |
1618 | (softback_top - n) / vc->vc_size_row; | |
1619 | n = softback_top; | |
1620 | } | |
1621 | } else { | |
1622 | if (softback_curr > softback_in && n >= softback_end) { | |
1623 | n += softback_buf - softback_end; | |
1624 | if (n > softback_in) { | |
1625 | n = softback_in; | |
1626 | softback_lines = 0; | |
1627 | } | |
1628 | } else if (softback_curr <= softback_in && n > softback_in) { | |
1629 | n = softback_in; | |
1630 | softback_lines = 0; | |
1631 | } | |
1632 | } | |
1633 | if (n == softback_curr) | |
1634 | return; | |
1635 | softback_curr = n; | |
1636 | s = (u16 *) softback_curr; | |
1637 | if (s == (u16 *) softback_in) | |
1638 | s = (u16 *) vc->vc_origin; | |
1639 | while (count--) { | |
1640 | unsigned short *start; | |
1641 | unsigned short *le; | |
1642 | unsigned short c; | |
1643 | int x = 0; | |
1644 | unsigned short attr = 1; | |
1645 | ||
1646 | start = s; | |
1647 | le = advance_row(s, 1); | |
1648 | do { | |
1649 | c = scr_readw(s); | |
1650 | if (attr != (c & 0xff00)) { | |
1651 | attr = c & 0xff00; | |
1652 | if (s > start) { | |
1653 | fbcon_putcs(vc, start, s - start, | |
1654 | line, x); | |
1655 | x += s - start; | |
1656 | start = s; | |
1657 | } | |
1658 | } | |
1659 | if (c == scr_readw(d)) { | |
1660 | if (s > start) { | |
1661 | fbcon_putcs(vc, start, s - start, | |
1662 | line, x); | |
1663 | x += s - start + 1; | |
1664 | start = s + 1; | |
1665 | } else { | |
1666 | x++; | |
1667 | start++; | |
1668 | } | |
1669 | } | |
1670 | s++; | |
1671 | d++; | |
1672 | } while (s < le); | |
1673 | if (s > start) | |
1674 | fbcon_putcs(vc, start, s - start, line, x); | |
1675 | line++; | |
1676 | if (d == (u16 *) softback_end) | |
1677 | d = (u16 *) softback_buf; | |
1678 | if (d == (u16 *) softback_in) | |
1679 | d = (u16 *) vc->vc_origin; | |
1680 | if (s == (u16 *) softback_end) | |
1681 | s = (u16 *) softback_buf; | |
1682 | if (s == (u16 *) softback_in) | |
1683 | s = (u16 *) vc->vc_origin; | |
1684 | } | |
1685 | } | |
1686 | ||
1687 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
1688 | int line, int count, int dy) | |
1689 | { | |
1690 | unsigned short *s = (unsigned short *) | |
1691 | (vc->vc_origin + vc->vc_size_row * line); | |
1692 | ||
1693 | while (count--) { | |
1694 | unsigned short *start = s; | |
1695 | unsigned short *le = advance_row(s, 1); | |
1696 | unsigned short c; | |
1697 | int x = 0; | |
1698 | unsigned short attr = 1; | |
1699 | ||
1700 | do { | |
1701 | c = scr_readw(s); | |
1702 | if (attr != (c & 0xff00)) { | |
1703 | attr = c & 0xff00; | |
1704 | if (s > start) { | |
1705 | fbcon_putcs(vc, start, s - start, | |
1706 | dy, x); | |
1707 | x += s - start; | |
1708 | start = s; | |
1709 | } | |
1710 | } | |
1711 | console_conditional_schedule(); | |
1712 | s++; | |
1713 | } while (s < le); | |
1714 | if (s > start) | |
1715 | fbcon_putcs(vc, start, s - start, dy, x); | |
1716 | console_conditional_schedule(); | |
1717 | dy++; | |
1718 | } | |
1719 | } | |
1720 | ||
bad07ff7 KH |
1721 | static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info, |
1722 | struct display *p, int line, int count, int ycount) | |
1723 | { | |
1724 | int offset = ycount * vc->vc_cols; | |
1725 | unsigned short *d = (unsigned short *) | |
1726 | (vc->vc_origin + vc->vc_size_row * line); | |
1727 | unsigned short *s = d + offset; | |
1728 | struct fbcon_ops *ops = info->fbcon_par; | |
1729 | ||
1730 | while (count--) { | |
1731 | unsigned short *start = s; | |
1732 | unsigned short *le = advance_row(s, 1); | |
1733 | unsigned short c; | |
1734 | int x = 0; | |
1735 | ||
1736 | do { | |
1737 | c = scr_readw(s); | |
1738 | ||
1739 | if (c == scr_readw(d)) { | |
1740 | if (s > start) { | |
1741 | ops->bmove(vc, info, line + ycount, x, | |
1742 | line, x, 1, s-start); | |
1743 | x += s - start + 1; | |
1744 | start = s + 1; | |
1745 | } else { | |
1746 | x++; | |
1747 | start++; | |
1748 | } | |
1749 | } | |
1750 | ||
1751 | scr_writew(c, d); | |
1752 | console_conditional_schedule(); | |
1753 | s++; | |
1754 | d++; | |
1755 | } while (s < le); | |
1756 | if (s > start) | |
1757 | ops->bmove(vc, info, line + ycount, x, line, x, 1, | |
1758 | s-start); | |
1759 | console_conditional_schedule(); | |
1760 | if (ycount > 0) | |
1761 | line++; | |
1762 | else { | |
1763 | line--; | |
1764 | /* NOTE: We subtract two lines from these pointers */ | |
1765 | s -= vc->vc_size_row; | |
1766 | d -= vc->vc_size_row; | |
1767 | } | |
1768 | } | |
1769 | } | |
1770 | ||
1da177e4 LT |
1771 | static void fbcon_redraw(struct vc_data *vc, struct display *p, |
1772 | int line, int count, int offset) | |
1773 | { | |
1774 | unsigned short *d = (unsigned short *) | |
1775 | (vc->vc_origin + vc->vc_size_row * line); | |
1776 | unsigned short *s = d + offset; | |
1777 | ||
1778 | while (count--) { | |
1779 | unsigned short *start = s; | |
1780 | unsigned short *le = advance_row(s, 1); | |
1781 | unsigned short c; | |
1782 | int x = 0; | |
1783 | unsigned short attr = 1; | |
1784 | ||
1785 | do { | |
1786 | c = scr_readw(s); | |
1787 | if (attr != (c & 0xff00)) { | |
1788 | attr = c & 0xff00; | |
1789 | if (s > start) { | |
1790 | fbcon_putcs(vc, start, s - start, | |
1791 | line, x); | |
1792 | x += s - start; | |
1793 | start = s; | |
1794 | } | |
1795 | } | |
1796 | if (c == scr_readw(d)) { | |
1797 | if (s > start) { | |
1798 | fbcon_putcs(vc, start, s - start, | |
1799 | line, x); | |
1800 | x += s - start + 1; | |
1801 | start = s + 1; | |
1802 | } else { | |
1803 | x++; | |
1804 | start++; | |
1805 | } | |
1806 | } | |
1807 | scr_writew(c, d); | |
1808 | console_conditional_schedule(); | |
1809 | s++; | |
1810 | d++; | |
1811 | } while (s < le); | |
1812 | if (s > start) | |
1813 | fbcon_putcs(vc, start, s - start, line, x); | |
1814 | console_conditional_schedule(); | |
1815 | if (offset > 0) | |
1816 | line++; | |
1817 | else { | |
1818 | line--; | |
1819 | /* NOTE: We subtract two lines from these pointers */ | |
1820 | s -= vc->vc_size_row; | |
1821 | d -= vc->vc_size_row; | |
1822 | } | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | static inline void fbcon_softback_note(struct vc_data *vc, int t, | |
1827 | int count) | |
1828 | { | |
1829 | unsigned short *p; | |
1830 | ||
1831 | if (vc->vc_num != fg_console) | |
1832 | return; | |
1833 | p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); | |
1834 | ||
1835 | while (count) { | |
1836 | scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); | |
1837 | count--; | |
1838 | p = advance_row(p, 1); | |
1839 | softback_in += vc->vc_size_row; | |
1840 | if (softback_in == softback_end) | |
1841 | softback_in = softback_buf; | |
1842 | if (softback_in == softback_top) { | |
1843 | softback_top += vc->vc_size_row; | |
1844 | if (softback_top == softback_end) | |
1845 | softback_top = softback_buf; | |
1846 | } | |
1847 | } | |
1848 | softback_curr = softback_in; | |
1849 | } | |
1850 | ||
1851 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
1852 | int count) | |
1853 | { | |
1854 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1855 | struct display *p = &fb_display[vc->vc_num]; | |
1da177e4 LT |
1856 | int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; |
1857 | ||
1858 | if (fbcon_is_inactive(vc, info)) | |
1859 | return -EINVAL; | |
1860 | ||
1861 | fbcon_cursor(vc, CM_ERASE); | |
1862 | ||
1863 | /* | |
1864 | * ++Geert: Only use ywrap/ypan if the console is in text mode | |
1865 | * ++Andrew: Only use ypan on hardware text mode when scrolling the | |
1866 | * whole screen (prevents flicker). | |
1867 | */ | |
1868 | ||
1869 | switch (dir) { | |
1870 | case SM_UP: | |
1871 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1872 | count = vc->vc_rows; | |
1873 | if (softback_top) | |
1874 | fbcon_softback_note(vc, t, count); | |
1875 | if (logo_shown >= 0) | |
1876 | goto redraw_up; | |
1877 | switch (p->scrollmode) { | |
1878 | case SCROLL_MOVE: | |
bad07ff7 KH |
1879 | fbcon_redraw_blit(vc, info, p, t, b - t - count, |
1880 | count); | |
1881 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1882 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1883 | vc->vc_size_row * | |
1884 | (b - count)), | |
1885 | vc->vc_video_erase_char, | |
1886 | vc->vc_size_row * count); | |
1887 | return 1; | |
1da177e4 LT |
1888 | break; |
1889 | ||
1890 | case SCROLL_WRAP_MOVE: | |
1891 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1892 | if (t > 0) | |
1893 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1894 | vc->vc_cols); | |
1895 | ywrap_up(vc, count); | |
1896 | if (vc->vc_rows - b > 0) | |
1897 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1898 | vc->vc_rows - b, | |
1899 | vc->vc_cols); | |
1900 | } else if (info->flags & FBINFO_READS_FAST) | |
1901 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1902 | b - t - count, vc->vc_cols); | |
1903 | else | |
1904 | goto redraw_up; | |
1905 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1906 | break; | |
1907 | ||
1908 | case SCROLL_PAN_REDRAW: | |
1909 | if ((p->yscroll + count <= | |
1910 | 2 * (p->vrows - vc->vc_rows)) | |
1911 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1912 | || (scroll_partial | |
1913 | && (b - t - count > | |
1914 | 3 * vc->vc_rows >> 2)))) { | |
1915 | if (t > 0) | |
1916 | fbcon_redraw_move(vc, p, 0, t, count); | |
1917 | ypan_up_redraw(vc, t, count); | |
1918 | if (vc->vc_rows - b > 0) | |
26e780e8 | 1919 | fbcon_redraw_move(vc, p, b, |
1da177e4 LT |
1920 | vc->vc_rows - b, b); |
1921 | } else | |
1922 | fbcon_redraw_move(vc, p, t + count, b - t - count, t); | |
1923 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1924 | break; | |
1925 | ||
1926 | case SCROLL_PAN_MOVE: | |
1927 | if ((p->yscroll + count <= | |
1928 | 2 * (p->vrows - vc->vc_rows)) | |
1929 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1930 | || (scroll_partial | |
1931 | && (b - t - count > | |
1932 | 3 * vc->vc_rows >> 2)))) { | |
1933 | if (t > 0) | |
1934 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1935 | vc->vc_cols); | |
1936 | ypan_up(vc, count); | |
1937 | if (vc->vc_rows - b > 0) | |
1938 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1939 | vc->vc_rows - b, | |
1940 | vc->vc_cols); | |
1941 | } else if (info->flags & FBINFO_READS_FAST) | |
1942 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1943 | b - t - count, vc->vc_cols); | |
1944 | else | |
1945 | goto redraw_up; | |
1946 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1947 | break; | |
1948 | ||
1949 | case SCROLL_REDRAW: | |
1950 | redraw_up: | |
1951 | fbcon_redraw(vc, p, t, b - t - count, | |
1952 | count * vc->vc_cols); | |
1953 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1954 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1955 | vc->vc_size_row * | |
1956 | (b - count)), | |
1957 | vc->vc_video_erase_char, | |
1958 | vc->vc_size_row * count); | |
1959 | return 1; | |
1960 | } | |
1961 | break; | |
1962 | ||
1963 | case SM_DOWN: | |
1964 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1965 | count = vc->vc_rows; | |
e703ecc3 JB |
1966 | if (logo_shown >= 0) |
1967 | goto redraw_down; | |
1da177e4 LT |
1968 | switch (p->scrollmode) { |
1969 | case SCROLL_MOVE: | |
bad07ff7 KH |
1970 | fbcon_redraw_blit(vc, info, p, b - 1, b - t - count, |
1971 | -count); | |
1972 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1973 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1974 | vc->vc_size_row * | |
1975 | t), | |
1976 | vc->vc_video_erase_char, | |
1977 | vc->vc_size_row * count); | |
1978 | return 1; | |
1da177e4 LT |
1979 | break; |
1980 | ||
1981 | case SCROLL_WRAP_MOVE: | |
1982 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1983 | if (vc->vc_rows - b > 0) | |
1984 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1985 | vc->vc_rows - b, | |
1986 | vc->vc_cols); | |
1987 | ywrap_down(vc, count); | |
1988 | if (t > 0) | |
1989 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1990 | vc->vc_cols); | |
1991 | } else if (info->flags & FBINFO_READS_FAST) | |
1992 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1993 | b - t - count, vc->vc_cols); | |
1994 | else | |
1995 | goto redraw_down; | |
1996 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1997 | break; | |
1998 | ||
1999 | case SCROLL_PAN_MOVE: | |
2000 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
2001 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
2002 | || (scroll_partial | |
2003 | && (b - t - count > | |
2004 | 3 * vc->vc_rows >> 2)))) { | |
2005 | if (vc->vc_rows - b > 0) | |
2006 | fbcon_bmove(vc, b, 0, b - count, 0, | |
2007 | vc->vc_rows - b, | |
2008 | vc->vc_cols); | |
2009 | ypan_down(vc, count); | |
2010 | if (t > 0) | |
2011 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
2012 | vc->vc_cols); | |
2013 | } else if (info->flags & FBINFO_READS_FAST) | |
2014 | fbcon_bmove(vc, t, 0, t + count, 0, | |
2015 | b - t - count, vc->vc_cols); | |
2016 | else | |
2017 | goto redraw_down; | |
2018 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
2019 | break; | |
2020 | ||
2021 | case SCROLL_PAN_REDRAW: | |
2022 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
2023 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
2024 | || (scroll_partial | |
2025 | && (b - t - count > | |
2026 | 3 * vc->vc_rows >> 2)))) { | |
2027 | if (vc->vc_rows - b > 0) | |
2028 | fbcon_redraw_move(vc, p, b, vc->vc_rows - b, | |
2029 | b - count); | |
2030 | ypan_down_redraw(vc, t, count); | |
2031 | if (t > 0) | |
2032 | fbcon_redraw_move(vc, p, count, t, 0); | |
2033 | } else | |
2034 | fbcon_redraw_move(vc, p, t, b - t - count, t + count); | |
2035 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
2036 | break; | |
2037 | ||
2038 | case SCROLL_REDRAW: | |
2039 | redraw_down: | |
2040 | fbcon_redraw(vc, p, b - 1, b - t - count, | |
2041 | -count * vc->vc_cols); | |
2042 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
2043 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
2044 | vc->vc_size_row * | |
2045 | t), | |
2046 | vc->vc_video_erase_char, | |
2047 | vc->vc_size_row * count); | |
2048 | return 1; | |
2049 | } | |
2050 | } | |
2051 | return 0; | |
2052 | } | |
2053 | ||
2054 | ||
2055 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
2056 | int height, int width) | |
2057 | { | |
2058 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2059 | struct display *p = &fb_display[vc->vc_num]; | |
2060 | ||
2061 | if (fbcon_is_inactive(vc, info)) | |
2062 | return; | |
2063 | ||
2064 | if (!width || !height) | |
2065 | return; | |
2066 | ||
2067 | /* Split blits that cross physical y_wrap case. | |
2068 | * Pathological case involves 4 blits, better to use recursive | |
2069 | * code rather than unrolled case | |
2070 | * | |
2071 | * Recursive invocations don't need to erase the cursor over and | |
2072 | * over again, so we use fbcon_bmove_rec() | |
2073 | */ | |
2074 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width, | |
2075 | p->vrows - p->yscroll); | |
2076 | } | |
2077 | ||
2078 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
2079 | int dy, int dx, int height, int width, u_int y_break) | |
2080 | { | |
2081 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2082 | struct fbcon_ops *ops = info->fbcon_par; | |
2083 | u_int b; | |
2084 | ||
2085 | if (sy < y_break && sy + height > y_break) { | |
2086 | b = y_break - sy; | |
2087 | if (dy < sy) { /* Avoid trashing self */ | |
2088 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2089 | y_break); | |
2090 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2091 | height - b, width, y_break); | |
2092 | } else { | |
2093 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2094 | height - b, width, y_break); | |
2095 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2096 | y_break); | |
2097 | } | |
2098 | return; | |
2099 | } | |
2100 | ||
2101 | if (dy < y_break && dy + height > y_break) { | |
2102 | b = y_break - dy; | |
2103 | if (dy < sy) { /* Avoid trashing self */ | |
2104 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2105 | y_break); | |
2106 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2107 | height - b, width, y_break); | |
2108 | } else { | |
2109 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2110 | height - b, width, y_break); | |
2111 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2112 | y_break); | |
2113 | } | |
2114 | return; | |
2115 | } | |
2116 | ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx, | |
2117 | height, width); | |
2118 | } | |
2119 | ||
e4fc2761 AD |
2120 | static __inline__ void updatescrollmode(struct display *p, |
2121 | struct fb_info *info, | |
1da177e4 LT |
2122 | struct vc_data *vc) |
2123 | { | |
e4fc2761 | 2124 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2125 | int fh = vc->vc_font.height; |
2126 | int cap = info->flags; | |
e4fc2761 AD |
2127 | u16 t = 0; |
2128 | int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep, | |
2129 | info->fix.xpanstep); | |
2130 | int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t); | |
2131 | int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2132 | int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual, | |
2133 | info->var.xres_virtual); | |
2134 | int good_pan = (cap & FBINFO_HWACCEL_YPAN) && | |
2135 | divides(ypan, vc->vc_font.height) && vyres > yres; | |
2136 | int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) && | |
2137 | divides(ywrap, vc->vc_font.height) && | |
244ab72d KP |
2138 | divides(vc->vc_font.height, vyres) && |
2139 | divides(vc->vc_font.height, yres); | |
1da177e4 | 2140 | int reading_fast = cap & FBINFO_READS_FAST; |
e4fc2761 AD |
2141 | int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) && |
2142 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2143 | int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) && | |
2144 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2145 | ||
2146 | p->vrows = vyres/fh; | |
2147 | if (yres > (fh * (vc->vc_rows + 1))) | |
2148 | p->vrows -= (yres - (fh * vc->vc_rows)) / fh; | |
2149 | if ((yres % fh) && (vyres % fh < yres % fh)) | |
1da177e4 LT |
2150 | p->vrows--; |
2151 | ||
2152 | if (good_wrap || good_pan) { | |
2153 | if (reading_fast || fast_copyarea) | |
e4fc2761 AD |
2154 | p->scrollmode = good_wrap ? |
2155 | SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE; | |
1da177e4 LT |
2156 | else |
2157 | p->scrollmode = good_wrap ? SCROLL_REDRAW : | |
2158 | SCROLL_PAN_REDRAW; | |
2159 | } else { | |
2160 | if (reading_fast || (fast_copyarea && !fast_imageblit)) | |
2161 | p->scrollmode = SCROLL_MOVE; | |
2162 | else | |
2163 | p->scrollmode = SCROLL_REDRAW; | |
2164 | } | |
2165 | } | |
2166 | ||
2167 | static int fbcon_resize(struct vc_data *vc, unsigned int width, | |
2168 | unsigned int height) | |
2169 | { | |
2170 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2171 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2172 | struct display *p = &fb_display[vc->vc_num]; |
2173 | struct fb_var_screeninfo var = info->var; | |
e4fc2761 AD |
2174 | int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; |
2175 | ||
2176 | virt_w = FBCON_SWAP(ops->rotate, width, height); | |
2177 | virt_h = FBCON_SWAP(ops->rotate, height, width); | |
2178 | virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, | |
2179 | vc->vc_font.height); | |
2180 | virt_fh = FBCON_SWAP(ops->rotate, vc->vc_font.height, | |
2181 | vc->vc_font.width); | |
2182 | var.xres = virt_w * virt_fw; | |
2183 | var.yres = virt_h * virt_fh; | |
1da177e4 LT |
2184 | x_diff = info->var.xres - var.xres; |
2185 | y_diff = info->var.yres - var.yres; | |
e4fc2761 AD |
2186 | if (x_diff < 0 || x_diff > virt_fw || |
2187 | y_diff < 0 || y_diff > virt_fh) { | |
9791d763 | 2188 | const struct fb_videomode *mode; |
1da177e4 LT |
2189 | |
2190 | DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); | |
2191 | mode = fb_find_best_mode(&var, &info->modelist); | |
2192 | if (mode == NULL) | |
2193 | return -EINVAL; | |
3084a895 | 2194 | display_to_var(&var, p); |
1da177e4 | 2195 | fb_videomode_to_var(&var, mode); |
3084a895 | 2196 | |
e4fc2761 | 2197 | if (virt_w > var.xres/virt_fw || virt_h > var.yres/virt_fh) |
1da177e4 | 2198 | return -EINVAL; |
1da177e4 LT |
2199 | |
2200 | DPRINTK("resize now %ix%i\n", var.xres, var.yres); | |
2201 | if (CON_IS_VISIBLE(vc)) { | |
2202 | var.activate = FB_ACTIVATE_NOW | | |
2203 | FB_ACTIVATE_FORCE; | |
2204 | fb_set_var(info, &var); | |
2205 | } | |
2206 | var_to_display(p, &info->var, info); | |
e4fc2761 | 2207 | ops->var = info->var; |
1da177e4 LT |
2208 | } |
2209 | updatescrollmode(p, info, vc); | |
2210 | return 0; | |
2211 | } | |
2212 | ||
2213 | static int fbcon_switch(struct vc_data *vc) | |
2214 | { | |
88fb2c6e | 2215 | struct fb_info *info, *old_info = NULL; |
e4fc2761 | 2216 | struct fbcon_ops *ops; |
1da177e4 LT |
2217 | struct display *p = &fb_display[vc->vc_num]; |
2218 | struct fb_var_screeninfo var; | |
56f0d64d | 2219 | int i, prev_console, charcnt = 256; |
1da177e4 LT |
2220 | |
2221 | info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2222 | ops = info->fbcon_par; |
1da177e4 LT |
2223 | |
2224 | if (softback_top) { | |
1da177e4 LT |
2225 | if (softback_lines) |
2226 | fbcon_set_origin(vc); | |
2227 | softback_top = softback_curr = softback_in = softback_buf; | |
2228 | softback_lines = 0; | |
4d9c5b6e | 2229 | fbcon_update_softback(vc); |
1da177e4 LT |
2230 | } |
2231 | ||
2232 | if (logo_shown >= 0) { | |
2233 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2234 | ||
2235 | if (conp2->vc_top == logo_lines | |
2236 | && conp2->vc_bottom == conp2->vc_rows) | |
2237 | conp2->vc_top = 0; | |
2238 | logo_shown = FBCON_LOGO_CANSHOW; | |
2239 | } | |
2240 | ||
e4fc2761 | 2241 | prev_console = ops->currcon; |
88fb2c6e AD |
2242 | if (prev_console != -1) |
2243 | old_info = registered_fb[con2fb_map[prev_console]]; | |
1da177e4 LT |
2244 | /* |
2245 | * FIXME: If we have multiple fbdev's loaded, we need to | |
2246 | * update all info->currcon. Perhaps, we can place this | |
2247 | * in a centralized structure, but this might break some | |
2248 | * drivers. | |
2249 | * | |
2250 | * info->currcon = vc->vc_num; | |
2251 | */ | |
2252 | for (i = 0; i < FB_MAX; i++) { | |
2253 | if (registered_fb[i] != NULL && registered_fb[i]->fbcon_par) { | |
e4fc2761 | 2254 | struct fbcon_ops *o = registered_fb[i]->fbcon_par; |
1da177e4 | 2255 | |
e4fc2761 | 2256 | o->currcon = vc->vc_num; |
1da177e4 LT |
2257 | } |
2258 | } | |
2259 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); | |
2260 | display_to_var(&var, p); | |
2261 | var.activate = FB_ACTIVATE_NOW; | |
2262 | ||
2263 | /* | |
2264 | * make sure we don't unnecessarily trip the memcmp() | |
2265 | * in fb_set_var() | |
2266 | */ | |
2267 | info->var.activate = var.activate; | |
e4fc2761 AD |
2268 | var.yoffset = info->var.yoffset; |
2269 | var.xoffset = info->var.xoffset; | |
2270 | var.vmode = info->var.vmode; | |
1da177e4 | 2271 | fb_set_var(info, &var); |
e4fc2761 | 2272 | ops->var = info->var; |
1da177e4 | 2273 | |
39942fd8 KP |
2274 | if (old_info != NULL && (old_info != info || |
2275 | info->flags & FBINFO_MISC_ALWAYS_SETPAR)) { | |
88fb2c6e AD |
2276 | if (info->fbops->fb_set_par) |
2277 | info->fbops->fb_set_par(info); | |
a39bc34e | 2278 | |
5428b044 | 2279 | if (old_info != info) |
a39bc34e | 2280 | fbcon_del_cursor_timer(old_info); |
88fb2c6e | 2281 | } |
1da177e4 | 2282 | |
212f2639 AD |
2283 | if (fbcon_is_inactive(vc, info) || |
2284 | ops->blank_state != FB_BLANK_UNBLANK) | |
2285 | fbcon_del_cursor_timer(info); | |
2286 | else | |
2287 | fbcon_add_cursor_timer(info); | |
2288 | ||
b73deed3 | 2289 | set_blitting_type(vc, info); |
e4fc2761 AD |
2290 | ops->cursor_reset = 1; |
2291 | ||
b73deed3 | 2292 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 2293 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 2294 | set_blitting_type(vc, info); |
e4fc2761 | 2295 | } |
1da177e4 | 2296 | |
b8c90945 | 2297 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 | 2298 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
56f0d64d AD |
2299 | |
2300 | if (p->userfont) | |
2301 | charcnt = FNTCHARCNT(vc->vc_font.data); | |
2302 | ||
2303 | if (charcnt > 256) | |
2304 | vc->vc_complement_mask <<= 1; | |
2305 | ||
1da177e4 LT |
2306 | updatescrollmode(p, info, vc); |
2307 | ||
2308 | switch (p->scrollmode) { | |
2309 | case SCROLL_WRAP_MOVE: | |
2310 | scrollback_phys_max = p->vrows - vc->vc_rows; | |
2311 | break; | |
2312 | case SCROLL_PAN_MOVE: | |
2313 | case SCROLL_PAN_REDRAW: | |
2314 | scrollback_phys_max = p->vrows - 2 * vc->vc_rows; | |
2315 | if (scrollback_phys_max < 0) | |
2316 | scrollback_phys_max = 0; | |
2317 | break; | |
2318 | default: | |
2319 | scrollback_phys_max = 0; | |
2320 | break; | |
2321 | } | |
e4fc2761 | 2322 | |
1da177e4 LT |
2323 | scrollback_max = 0; |
2324 | scrollback_current = 0; | |
4e1567d3 AD |
2325 | |
2326 | if (!fbcon_is_inactive(vc, info)) { | |
2327 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2328 | ops->update_start(info); | |
2329 | } | |
2330 | ||
1da177e4 LT |
2331 | fbcon_set_palette(vc, color_table); |
2332 | fbcon_clear_margins(vc, 0); | |
2333 | ||
2334 | if (logo_shown == FBCON_LOGO_DRAW) { | |
2335 | ||
2336 | logo_shown = fg_console; | |
2337 | /* This is protected above by initmem_freed */ | |
9c44e5f6 | 2338 | fb_show_logo(info, ops->rotate); |
1da177e4 LT |
2339 | update_region(vc, |
2340 | vc->vc_origin + vc->vc_size_row * vc->vc_top, | |
2341 | vc->vc_size_row * (vc->vc_bottom - | |
2342 | vc->vc_top) / 2); | |
2343 | return 0; | |
2344 | } | |
2345 | return 1; | |
2346 | } | |
2347 | ||
2348 | static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, | |
2349 | int blank) | |
2350 | { | |
994efacd RP |
2351 | struct fb_event event; |
2352 | ||
1da177e4 LT |
2353 | if (blank) { |
2354 | unsigned short charmask = vc->vc_hi_font_mask ? | |
2355 | 0x1ff : 0xff; | |
2356 | unsigned short oldc; | |
2357 | ||
2358 | oldc = vc->vc_video_erase_char; | |
2359 | vc->vc_video_erase_char &= charmask; | |
2360 | fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); | |
2361 | vc->vc_video_erase_char = oldc; | |
2362 | } | |
994efacd RP |
2363 | |
2364 | ||
2365 | event.info = info; | |
2366 | event.data = ␣ | |
2367 | fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); | |
1da177e4 LT |
2368 | } |
2369 | ||
2370 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) | |
2371 | { | |
2372 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2373 | struct fbcon_ops *ops = info->fbcon_par; | |
2374 | ||
2375 | if (mode_switch) { | |
2376 | struct fb_var_screeninfo var = info->var; | |
2377 | ||
2378 | ops->graphics = 1; | |
2379 | ||
2380 | if (!blank) { | |
47434847 AD |
2381 | if (info->fbops->fb_save_state) |
2382 | info->fbops->fb_save_state(info); | |
1da177e4 LT |
2383 | var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; |
2384 | fb_set_var(info, &var); | |
2385 | ops->graphics = 0; | |
e4fc2761 | 2386 | ops->var = info->var; |
47434847 AD |
2387 | } else if (info->fbops->fb_restore_state) |
2388 | info->fbops->fb_restore_state(info); | |
1da177e4 LT |
2389 | } |
2390 | ||
2391 | if (!fbcon_is_inactive(vc, info)) { | |
2392 | if (ops->blank_state != blank) { | |
2393 | ops->blank_state = blank; | |
2394 | fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); | |
2395 | ops->cursor_flash = (!blank); | |
2396 | ||
2397 | if (fb_blank(info, blank)) | |
2398 | fbcon_generic_blank(vc, info, blank); | |
2399 | } | |
2400 | ||
88fb2c6e AD |
2401 | if (!blank) |
2402 | update_screen(vc); | |
2403 | } | |
2404 | ||
212f2639 AD |
2405 | if (fbcon_is_inactive(vc, info) || |
2406 | ops->blank_state != FB_BLANK_UNBLANK) | |
88fb2c6e | 2407 | fbcon_del_cursor_timer(info); |
212f2639 AD |
2408 | else |
2409 | fbcon_add_cursor_timer(info); | |
1da177e4 | 2410 | |
88fb2c6e | 2411 | return 0; |
1da177e4 LT |
2412 | } |
2413 | ||
1da177e4 LT |
2414 | static int fbcon_get_font(struct vc_data *vc, struct console_font *font) |
2415 | { | |
2416 | u8 *fontdata = vc->vc_font.data; | |
2417 | u8 *data = font->data; | |
2418 | int i, j; | |
2419 | ||
2420 | font->width = vc->vc_font.width; | |
2421 | font->height = vc->vc_font.height; | |
2422 | font->charcount = vc->vc_hi_font_mask ? 512 : 256; | |
2423 | if (!font->data) | |
2424 | return 0; | |
2425 | ||
2426 | if (font->width <= 8) { | |
2427 | j = vc->vc_font.height; | |
2428 | for (i = 0; i < font->charcount; i++) { | |
2429 | memcpy(data, fontdata, j); | |
2430 | memset(data + j, 0, 32 - j); | |
2431 | data += 32; | |
2432 | fontdata += j; | |
2433 | } | |
2434 | } else if (font->width <= 16) { | |
2435 | j = vc->vc_font.height * 2; | |
2436 | for (i = 0; i < font->charcount; i++) { | |
2437 | memcpy(data, fontdata, j); | |
2438 | memset(data + j, 0, 64 - j); | |
2439 | data += 64; | |
2440 | fontdata += j; | |
2441 | } | |
2442 | } else if (font->width <= 24) { | |
2443 | for (i = 0; i < font->charcount; i++) { | |
2444 | for (j = 0; j < vc->vc_font.height; j++) { | |
2445 | *data++ = fontdata[0]; | |
2446 | *data++ = fontdata[1]; | |
2447 | *data++ = fontdata[2]; | |
2448 | fontdata += sizeof(u32); | |
2449 | } | |
2450 | memset(data, 0, 3 * (32 - j)); | |
2451 | data += 3 * (32 - j); | |
2452 | } | |
2453 | } else { | |
2454 | j = vc->vc_font.height * 4; | |
2455 | for (i = 0; i < font->charcount; i++) { | |
2456 | memcpy(data, fontdata, j); | |
2457 | memset(data + j, 0, 128 - j); | |
2458 | data += 128; | |
2459 | fontdata += j; | |
2460 | } | |
2461 | } | |
2462 | return 0; | |
2463 | } | |
2464 | ||
2465 | static int fbcon_do_set_font(struct vc_data *vc, int w, int h, | |
2f4516db | 2466 | const u8 * data, int userfont) |
1da177e4 LT |
2467 | { |
2468 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2469 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2470 | struct display *p = &fb_display[vc->vc_num]; |
2471 | int resize; | |
2472 | int cnt; | |
2473 | char *old_data = NULL; | |
2474 | ||
2475 | if (CON_IS_VISIBLE(vc) && softback_lines) | |
2476 | fbcon_set_origin(vc); | |
2477 | ||
2478 | resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); | |
2479 | if (p->userfont) | |
2480 | old_data = vc->vc_font.data; | |
2481 | if (userfont) | |
2482 | cnt = FNTCHARCNT(data); | |
2483 | else | |
2484 | cnt = 256; | |
2f4516db | 2485 | vc->vc_font.data = (void *)(p->fontdata = data); |
1da177e4 LT |
2486 | if ((p->userfont = userfont)) |
2487 | REFCOUNT(data)++; | |
2488 | vc->vc_font.width = w; | |
2489 | vc->vc_font.height = h; | |
2490 | if (vc->vc_hi_font_mask && cnt == 256) { | |
2491 | vc->vc_hi_font_mask = 0; | |
2492 | if (vc->vc_can_do_color) { | |
2493 | vc->vc_complement_mask >>= 1; | |
2494 | vc->vc_s_complement_mask >>= 1; | |
2495 | } | |
2496 | ||
2497 | /* ++Edmund: reorder the attribute bits */ | |
2498 | if (vc->vc_can_do_color) { | |
2499 | unsigned short *cp = | |
2500 | (unsigned short *) vc->vc_origin; | |
2501 | int count = vc->vc_screenbuf_size / 2; | |
2502 | unsigned short c; | |
2503 | for (; count > 0; count--, cp++) { | |
2504 | c = scr_readw(cp); | |
2505 | scr_writew(((c & 0xfe00) >> 1) | | |
2506 | (c & 0xff), cp); | |
2507 | } | |
2508 | c = vc->vc_video_erase_char; | |
2509 | vc->vc_video_erase_char = | |
2510 | ((c & 0xfe00) >> 1) | (c & 0xff); | |
2511 | vc->vc_attr >>= 1; | |
2512 | } | |
2513 | } else if (!vc->vc_hi_font_mask && cnt == 512) { | |
2514 | vc->vc_hi_font_mask = 0x100; | |
2515 | if (vc->vc_can_do_color) { | |
2516 | vc->vc_complement_mask <<= 1; | |
2517 | vc->vc_s_complement_mask <<= 1; | |
2518 | } | |
2519 | ||
2520 | /* ++Edmund: reorder the attribute bits */ | |
2521 | { | |
2522 | unsigned short *cp = | |
2523 | (unsigned short *) vc->vc_origin; | |
2524 | int count = vc->vc_screenbuf_size / 2; | |
2525 | unsigned short c; | |
2526 | for (; count > 0; count--, cp++) { | |
2527 | unsigned short newc; | |
2528 | c = scr_readw(cp); | |
2529 | if (vc->vc_can_do_color) | |
2530 | newc = | |
2531 | ((c & 0xff00) << 1) | (c & | |
2532 | 0xff); | |
2533 | else | |
2534 | newc = c & ~0x100; | |
2535 | scr_writew(newc, cp); | |
2536 | } | |
2537 | c = vc->vc_video_erase_char; | |
2538 | if (vc->vc_can_do_color) { | |
2539 | vc->vc_video_erase_char = | |
2540 | ((c & 0xff00) << 1) | (c & 0xff); | |
2541 | vc->vc_attr <<= 1; | |
2542 | } else | |
2543 | vc->vc_video_erase_char = c & ~0x100; | |
2544 | } | |
2545 | ||
2546 | } | |
2547 | ||
2548 | if (resize) { | |
e4fc2761 AD |
2549 | int cols, rows; |
2550 | ||
2551 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); | |
2552 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2553 | cols /= w; | |
2554 | rows /= h; | |
2555 | vc_resize(vc, cols, rows); | |
4d9c5b6e AD |
2556 | if (CON_IS_VISIBLE(vc) && softback_buf) |
2557 | fbcon_update_softback(vc); | |
1da177e4 LT |
2558 | } else if (CON_IS_VISIBLE(vc) |
2559 | && vc->vc_mode == KD_TEXT) { | |
2560 | fbcon_clear_margins(vc, 0); | |
2561 | update_screen(vc); | |
2562 | } | |
2563 | ||
2564 | if (old_data && (--REFCOUNT(old_data) == 0)) | |
2565 | kfree(old_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2566 | return 0; | |
2567 | } | |
2568 | ||
2569 | static int fbcon_copy_font(struct vc_data *vc, int con) | |
2570 | { | |
2571 | struct display *od = &fb_display[con]; | |
2572 | struct console_font *f = &vc->vc_font; | |
2573 | ||
2574 | if (od->fontdata == f->data) | |
2575 | return 0; /* already the same font... */ | |
2576 | return fbcon_do_set_font(vc, f->width, f->height, od->fontdata, od->userfont); | |
2577 | } | |
2578 | ||
2579 | /* | |
2580 | * User asked to set font; we are guaranteed that | |
2581 | * a) width and height are in range 1..32 | |
2582 | * b) charcount does not exceed 512 | |
2583 | * but lets not assume that, since someone might someday want to use larger | |
2584 | * fonts. And charcount of 512 is small for unicode support. | |
2585 | * | |
2586 | * However, user space gives the font in 32 rows , regardless of | |
2587 | * actual font height. So a new API is needed if support for larger fonts | |
2588 | * is ever implemented. | |
2589 | */ | |
2590 | ||
2591 | static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) | |
2592 | { | |
2d2699d9 | 2593 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; |
1da177e4 LT |
2594 | unsigned charcount = font->charcount; |
2595 | int w = font->width; | |
2596 | int h = font->height; | |
2597 | int size; | |
2598 | int i, csum; | |
2599 | u8 *new_data, *data = font->data; | |
2600 | int pitch = (font->width+7) >> 3; | |
2601 | ||
2602 | /* Is there a reason why fbconsole couldn't handle any charcount >256? | |
2603 | * If not this check should be changed to charcount < 256 */ | |
2604 | if (charcount != 256 && charcount != 512) | |
2605 | return -EINVAL; | |
2606 | ||
2d2699d9 AD |
2607 | /* Make sure drawing engine can handle the font */ |
2608 | if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || | |
2609 | !(info->pixmap.blit_y & (1 << (font->height - 1)))) | |
2610 | return -EINVAL; | |
38b4982c AD |
2611 | |
2612 | /* Make sure driver can handle the font length */ | |
2613 | if (fbcon_invalid_charcount(info, charcount)) | |
2614 | return -EINVAL; | |
2d2699d9 | 2615 | |
1da177e4 LT |
2616 | size = h * pitch * charcount; |
2617 | ||
2618 | new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); | |
2619 | ||
2620 | if (!new_data) | |
2621 | return -ENOMEM; | |
2622 | ||
2623 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
2624 | FNTSIZE(new_data) = size; | |
2625 | FNTCHARCNT(new_data) = charcount; | |
2626 | REFCOUNT(new_data) = 0; /* usage counter */ | |
2627 | for (i=0; i< charcount; i++) { | |
2628 | memcpy(new_data + i*h*pitch, data + i*32*pitch, h*pitch); | |
2629 | } | |
2630 | ||
2631 | /* Since linux has a nice crc32 function use it for counting font | |
2632 | * checksums. */ | |
2633 | csum = crc32(0, new_data, size); | |
2634 | ||
2635 | FNTSUM(new_data) = csum; | |
2636 | /* Check if the same font is on some other console already */ | |
e614b18d | 2637 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
2638 | struct vc_data *tmp = vc_cons[i].d; |
2639 | ||
2640 | if (fb_display[i].userfont && | |
2641 | fb_display[i].fontdata && | |
2642 | FNTSUM(fb_display[i].fontdata) == csum && | |
2643 | FNTSIZE(fb_display[i].fontdata) == size && | |
2644 | tmp->vc_font.width == w && | |
2645 | !memcmp(fb_display[i].fontdata, new_data, size)) { | |
2646 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2f4516db | 2647 | new_data = (u8 *)fb_display[i].fontdata; |
1da177e4 LT |
2648 | break; |
2649 | } | |
2650 | } | |
2651 | return fbcon_do_set_font(vc, font->width, font->height, new_data, 1); | |
2652 | } | |
2653 | ||
2654 | static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name) | |
2655 | { | |
2656 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2f4516db | 2657 | const struct font_desc *f; |
1da177e4 LT |
2658 | |
2659 | if (!name) | |
2d2699d9 AD |
2660 | f = get_default_font(info->var.xres, info->var.yres, |
2661 | info->pixmap.blit_x, info->pixmap.blit_y); | |
1da177e4 LT |
2662 | else if (!(f = find_font(name))) |
2663 | return -ENOENT; | |
2664 | ||
2665 | font->width = f->width; | |
2666 | font->height = f->height; | |
2667 | return fbcon_do_set_font(vc, f->width, f->height, f->data, 0); | |
2668 | } | |
2669 | ||
2670 | static u16 palette_red[16]; | |
2671 | static u16 palette_green[16]; | |
2672 | static u16 palette_blue[16]; | |
2673 | ||
2674 | static struct fb_cmap palette_cmap = { | |
2675 | 0, 16, palette_red, palette_green, palette_blue, NULL | |
2676 | }; | |
2677 | ||
2678 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table) | |
2679 | { | |
2680 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2681 | int i, j, k, depth; | |
2682 | u8 val; | |
2683 | ||
2684 | if (fbcon_is_inactive(vc, info)) | |
2685 | return -EINVAL; | |
2686 | ||
2687 | if (!CON_IS_VISIBLE(vc)) | |
2688 | return 0; | |
2689 | ||
b8c90945 | 2690 | depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
2691 | if (depth > 3) { |
2692 | for (i = j = 0; i < 16; i++) { | |
2693 | k = table[i]; | |
2694 | val = vc->vc_palette[j++]; | |
2695 | palette_red[k] = (val << 8) | val; | |
2696 | val = vc->vc_palette[j++]; | |
2697 | palette_green[k] = (val << 8) | val; | |
2698 | val = vc->vc_palette[j++]; | |
2699 | palette_blue[k] = (val << 8) | val; | |
2700 | } | |
2701 | palette_cmap.len = 16; | |
2702 | palette_cmap.start = 0; | |
2703 | /* | |
2704 | * If framebuffer is capable of less than 16 colors, | |
2705 | * use default palette of fbcon. | |
2706 | */ | |
2707 | } else | |
2708 | fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); | |
2709 | ||
2710 | return fb_set_cmap(&palette_cmap, info); | |
2711 | } | |
2712 | ||
2713 | static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) | |
2714 | { | |
2715 | unsigned long p; | |
2716 | int line; | |
2717 | ||
2718 | if (vc->vc_num != fg_console || !softback_lines) | |
2719 | return (u16 *) (vc->vc_origin + offset); | |
2720 | line = offset / vc->vc_size_row; | |
2721 | if (line >= softback_lines) | |
2722 | return (u16 *) (vc->vc_origin + offset - | |
2723 | softback_lines * vc->vc_size_row); | |
2724 | p = softback_curr + offset; | |
2725 | if (p >= softback_end) | |
2726 | p += softback_buf - softback_end; | |
2727 | return (u16 *) p; | |
2728 | } | |
2729 | ||
2730 | static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, | |
2731 | int *px, int *py) | |
2732 | { | |
2733 | unsigned long ret; | |
2734 | int x, y; | |
2735 | ||
2736 | if (pos >= vc->vc_origin && pos < vc->vc_scr_end) { | |
2737 | unsigned long offset = (pos - vc->vc_origin) / 2; | |
2738 | ||
2739 | x = offset % vc->vc_cols; | |
2740 | y = offset / vc->vc_cols; | |
2741 | if (vc->vc_num == fg_console) | |
2742 | y += softback_lines; | |
2743 | ret = pos + (vc->vc_cols - x) * 2; | |
2744 | } else if (vc->vc_num == fg_console && softback_lines) { | |
2745 | unsigned long offset = pos - softback_curr; | |
2746 | ||
2747 | if (pos < softback_curr) | |
2748 | offset += softback_end - softback_buf; | |
2749 | offset /= 2; | |
2750 | x = offset % vc->vc_cols; | |
2751 | y = offset / vc->vc_cols; | |
2752 | ret = pos + (vc->vc_cols - x) * 2; | |
2753 | if (ret == softback_end) | |
2754 | ret = softback_buf; | |
2755 | if (ret == softback_in) | |
2756 | ret = vc->vc_origin; | |
2757 | } else { | |
2758 | /* Should not happen */ | |
2759 | x = y = 0; | |
2760 | ret = vc->vc_origin; | |
2761 | } | |
2762 | if (px) | |
2763 | *px = x; | |
2764 | if (py) | |
2765 | *py = y; | |
2766 | return ret; | |
2767 | } | |
2768 | ||
2769 | /* As we might be inside of softback, we may work with non-contiguous buffer, | |
2770 | that's why we have to use a separate routine. */ | |
2771 | static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) | |
2772 | { | |
2773 | while (cnt--) { | |
2774 | u16 a = scr_readw(p); | |
2775 | if (!vc->vc_can_do_color) | |
2776 | a ^= 0x0800; | |
2777 | else if (vc->vc_hi_font_mask == 0x100) | |
2778 | a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | | |
2779 | (((a) & 0x0e00) << 4); | |
2780 | else | |
2781 | a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | | |
2782 | (((a) & 0x0700) << 4); | |
2783 | scr_writew(a, p++); | |
2784 | if (p == (u16 *) softback_end) | |
2785 | p = (u16 *) softback_buf; | |
2786 | if (p == (u16 *) softback_in) | |
2787 | p = (u16 *) vc->vc_origin; | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | static int fbcon_scrolldelta(struct vc_data *vc, int lines) | |
2792 | { | |
2793 | struct fb_info *info = registered_fb[con2fb_map[fg_console]]; | |
e4fc2761 | 2794 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2795 | struct display *p = &fb_display[fg_console]; |
2796 | int offset, limit, scrollback_old; | |
2797 | ||
2798 | if (softback_top) { | |
2799 | if (vc->vc_num != fg_console) | |
2800 | return 0; | |
2801 | if (vc->vc_mode != KD_TEXT || !lines) | |
2802 | return 0; | |
2803 | if (logo_shown >= 0) { | |
2804 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2805 | ||
2806 | if (conp2->vc_top == logo_lines | |
2807 | && conp2->vc_bottom == conp2->vc_rows) | |
2808 | conp2->vc_top = 0; | |
2809 | if (logo_shown == vc->vc_num) { | |
2810 | unsigned long p, q; | |
2811 | int i; | |
2812 | ||
2813 | p = softback_in; | |
2814 | q = vc->vc_origin + | |
2815 | logo_lines * vc->vc_size_row; | |
2816 | for (i = 0; i < logo_lines; i++) { | |
2817 | if (p == softback_top) | |
2818 | break; | |
2819 | if (p == softback_buf) | |
2820 | p = softback_end; | |
2821 | p -= vc->vc_size_row; | |
2822 | q -= vc->vc_size_row; | |
2823 | scr_memcpyw((u16 *) q, (u16 *) p, | |
2824 | vc->vc_size_row); | |
2825 | } | |
308af929 | 2826 | softback_in = softback_curr = p; |
1da177e4 LT |
2827 | update_region(vc, vc->vc_origin, |
2828 | logo_lines * vc->vc_cols); | |
2829 | } | |
2830 | logo_shown = FBCON_LOGO_CANSHOW; | |
2831 | } | |
2832 | fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); | |
2833 | fbcon_redraw_softback(vc, p, lines); | |
2834 | fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); | |
2835 | return 0; | |
2836 | } | |
2837 | ||
2838 | if (!scrollback_phys_max) | |
2839 | return -ENOSYS; | |
2840 | ||
2841 | scrollback_old = scrollback_current; | |
2842 | scrollback_current -= lines; | |
2843 | if (scrollback_current < 0) | |
2844 | scrollback_current = 0; | |
2845 | else if (scrollback_current > scrollback_max) | |
2846 | scrollback_current = scrollback_max; | |
2847 | if (scrollback_current == scrollback_old) | |
2848 | return 0; | |
2849 | ||
2850 | if (fbcon_is_inactive(vc, info)) | |
2851 | return 0; | |
2852 | ||
2853 | fbcon_cursor(vc, CM_ERASE); | |
2854 | ||
2855 | offset = p->yscroll - scrollback_current; | |
2856 | limit = p->vrows; | |
2857 | switch (p->scrollmode) { | |
2858 | case SCROLL_WRAP_MOVE: | |
2859 | info->var.vmode |= FB_VMODE_YWRAP; | |
2860 | break; | |
2861 | case SCROLL_PAN_MOVE: | |
2862 | case SCROLL_PAN_REDRAW: | |
2863 | limit -= vc->vc_rows; | |
2864 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
2865 | break; | |
2866 | } | |
2867 | if (offset < 0) | |
2868 | offset += limit; | |
2869 | else if (offset >= limit) | |
2870 | offset -= limit; | |
e4fc2761 AD |
2871 | |
2872 | ops->var.xoffset = 0; | |
2873 | ops->var.yoffset = offset * vc->vc_font.height; | |
2874 | ops->update_start(info); | |
2875 | ||
1da177e4 LT |
2876 | if (!scrollback_current) |
2877 | fbcon_cursor(vc, CM_DRAW); | |
2878 | return 0; | |
2879 | } | |
2880 | ||
2881 | static int fbcon_set_origin(struct vc_data *vc) | |
2882 | { | |
2883 | if (softback_lines) | |
2884 | fbcon_scrolldelta(vc, softback_lines); | |
2885 | return 0; | |
2886 | } | |
2887 | ||
2888 | static void fbcon_suspended(struct fb_info *info) | |
2889 | { | |
2890 | struct vc_data *vc = NULL; | |
2891 | struct fbcon_ops *ops = info->fbcon_par; | |
2892 | ||
2893 | if (!ops || ops->currcon < 0) | |
2894 | return; | |
2895 | vc = vc_cons[ops->currcon].d; | |
2896 | ||
2897 | /* Clear cursor, restore saved data */ | |
2898 | fbcon_cursor(vc, CM_ERASE); | |
2899 | } | |
2900 | ||
2901 | static void fbcon_resumed(struct fb_info *info) | |
2902 | { | |
2903 | struct vc_data *vc; | |
2904 | struct fbcon_ops *ops = info->fbcon_par; | |
2905 | ||
2906 | if (!ops || ops->currcon < 0) | |
2907 | return; | |
2908 | vc = vc_cons[ops->currcon].d; | |
2909 | ||
2910 | update_screen(vc); | |
2911 | } | |
2912 | ||
2913 | static void fbcon_modechanged(struct fb_info *info) | |
2914 | { | |
2915 | struct fbcon_ops *ops = info->fbcon_par; | |
2916 | struct vc_data *vc; | |
2917 | struct display *p; | |
2918 | int rows, cols; | |
2919 | ||
2920 | if (!ops || ops->currcon < 0) | |
2921 | return; | |
2922 | vc = vc_cons[ops->currcon].d; | |
e4fc2761 AD |
2923 | if (vc->vc_mode != KD_TEXT || |
2924 | registered_fb[con2fb_map[ops->currcon]] != info) | |
1da177e4 LT |
2925 | return; |
2926 | ||
2927 | p = &fb_display[vc->vc_num]; | |
b73deed3 | 2928 | set_blitting_type(vc, info); |
1da177e4 LT |
2929 | |
2930 | if (CON_IS_VISIBLE(vc)) { | |
2931 | var_to_display(p, &info->var, info); | |
e4fc2761 AD |
2932 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2933 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2934 | cols /= vc->vc_font.width; | |
2935 | rows /= vc->vc_font.height; | |
1da177e4 LT |
2936 | vc_resize(vc, cols, rows); |
2937 | updatescrollmode(p, info, vc); | |
2938 | scrollback_max = 0; | |
2939 | scrollback_current = 0; | |
4e1567d3 AD |
2940 | |
2941 | if (!fbcon_is_inactive(vc, info)) { | |
2942 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2943 | ops->update_start(info); | |
2944 | } | |
2945 | ||
1da177e4 LT |
2946 | fbcon_set_palette(vc, color_table); |
2947 | update_screen(vc); | |
4d9c5b6e AD |
2948 | if (softback_buf) |
2949 | fbcon_update_softback(vc); | |
1da177e4 LT |
2950 | } |
2951 | } | |
2952 | ||
7726e9e1 AD |
2953 | static void fbcon_set_all_vcs(struct fb_info *info) |
2954 | { | |
2955 | struct fbcon_ops *ops = info->fbcon_par; | |
2956 | struct vc_data *vc; | |
2957 | struct display *p; | |
95d67bb1 | 2958 | int i, rows, cols, fg = -1; |
7726e9e1 AD |
2959 | |
2960 | if (!ops || ops->currcon < 0) | |
2961 | return; | |
2962 | ||
e614b18d | 2963 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
7726e9e1 AD |
2964 | vc = vc_cons[i].d; |
2965 | if (!vc || vc->vc_mode != KD_TEXT || | |
2966 | registered_fb[con2fb_map[i]] != info) | |
2967 | continue; | |
2968 | ||
95d67bb1 AD |
2969 | if (CON_IS_VISIBLE(vc)) { |
2970 | fg = i; | |
2971 | continue; | |
2972 | } | |
2973 | ||
7726e9e1 | 2974 | p = &fb_display[vc->vc_num]; |
b73deed3 | 2975 | set_blitting_type(vc, info); |
7726e9e1 | 2976 | var_to_display(p, &info->var, info); |
95d67bb1 AD |
2977 | cols = FBCON_SWAP(p->rotate, info->var.xres, info->var.yres); |
2978 | rows = FBCON_SWAP(p->rotate, info->var.yres, info->var.xres); | |
e4fc2761 AD |
2979 | cols /= vc->vc_font.width; |
2980 | rows /= vc->vc_font.height; | |
7726e9e1 | 2981 | vc_resize(vc, cols, rows); |
7726e9e1 | 2982 | } |
04a2fe57 | 2983 | |
95d67bb1 AD |
2984 | if (fg != -1) |
2985 | fbcon_modechanged(info); | |
7726e9e1 AD |
2986 | } |
2987 | ||
1da177e4 LT |
2988 | static int fbcon_mode_deleted(struct fb_info *info, |
2989 | struct fb_videomode *mode) | |
2990 | { | |
2991 | struct fb_info *fb_info; | |
2992 | struct display *p; | |
2993 | int i, j, found = 0; | |
2994 | ||
2995 | /* before deletion, ensure that mode is not in use */ | |
2996 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2997 | j = con2fb_map[i]; | |
2998 | if (j == -1) | |
2999 | continue; | |
3000 | fb_info = registered_fb[j]; | |
3001 | if (fb_info != info) | |
3002 | continue; | |
3003 | p = &fb_display[i]; | |
3004 | if (!p || !p->mode) | |
3005 | continue; | |
3006 | if (fb_mode_is_equal(p->mode, mode)) { | |
3007 | found = 1; | |
3008 | break; | |
3009 | } | |
3010 | } | |
3011 | return found; | |
3012 | } | |
3013 | ||
623e71b0 | 3014 | static int fbcon_fb_unregistered(struct fb_info *info) |
e614b18d | 3015 | { |
623e71b0 | 3016 | int i, idx = info->node; |
e614b18d AD |
3017 | |
3018 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3019 | if (con2fb_map[i] == idx) | |
3020 | con2fb_map[i] = -1; | |
3021 | } | |
3022 | ||
3023 | if (idx == info_idx) { | |
3024 | info_idx = -1; | |
3025 | ||
3026 | for (i = 0; i < FB_MAX; i++) { | |
3027 | if (registered_fb[i] != NULL) { | |
3028 | info_idx = i; | |
3029 | break; | |
3030 | } | |
3031 | } | |
3032 | } | |
3033 | ||
3034 | if (info_idx != -1) { | |
3035 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3036 | if (con2fb_map[i] == -1) | |
3037 | con2fb_map[i] = info_idx; | |
3038 | } | |
3039 | } | |
3040 | ||
3041 | if (!num_registered_fb) | |
3042 | unregister_con_driver(&fb_con); | |
3043 | ||
623e71b0 AD |
3044 | |
3045 | if (primary_device == idx) | |
3046 | primary_device = -1; | |
3047 | ||
3048 | return 0; | |
3049 | } | |
3050 | ||
3051 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY | |
3052 | static int fbcon_select_primary(struct fb_info *info) | |
3053 | { | |
3054 | int ret = 0; | |
3055 | ||
3056 | if (!map_override && primary_device == -1 && | |
3057 | fb_is_primary_device(info)) { | |
3058 | int i, err; | |
3059 | ||
3060 | printk(KERN_INFO "fbcon: %s is primary device\n", | |
3061 | info->fix.id); | |
3062 | primary_device = info->node; | |
3063 | ||
3064 | if (!con_is_bound(&fb_con)) | |
3065 | goto done; | |
3066 | ||
3067 | printk(KERN_INFO "fbcon: Unbinding old driver\n"); | |
3068 | unbind_con_driver(&fb_con, first_fb_vc, last_fb_vc, | |
3069 | fbcon_is_default); | |
3070 | info_idx = primary_device; | |
3071 | ||
3072 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3073 | con2fb_map_boot[i] = primary_device; | |
3074 | con2fb_map[i] = primary_device; | |
3075 | } | |
3076 | ||
3077 | printk(KERN_INFO "fbcon: Selecting new driver\n"); | |
3078 | err = bind_con_driver(&fb_con, first_fb_vc, last_fb_vc, | |
3079 | fbcon_is_default); | |
3080 | ||
3081 | if (err) { | |
3082 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
3083 | con2fb_map[i] = -1; | |
3084 | ||
3085 | info_idx = -1; | |
3086 | } | |
3087 | ||
3088 | ret = 1; | |
3089 | } | |
3090 | ||
3091 | done: | |
3092 | return ret; | |
3093 | } | |
3094 | #else | |
3095 | static inline int fbcon_select_primary(struct fb_info *info) | |
3096 | { | |
e614b18d AD |
3097 | return 0; |
3098 | } | |
623e71b0 | 3099 | #endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */ |
e614b18d | 3100 | |
623e71b0 | 3101 | static int fbcon_fb_registered(struct fb_info *info) |
1da177e4 | 3102 | { |
623e71b0 AD |
3103 | int ret = 0, i, idx = info->node; |
3104 | ||
3105 | if (fbcon_select_primary(info)) | |
3106 | goto done; | |
3107 | ||
1da177e4 LT |
3108 | |
3109 | if (info_idx == -1) { | |
e614b18d | 3110 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3111 | if (con2fb_map_boot[i] == idx) { |
3112 | info_idx = idx; | |
3113 | break; | |
3114 | } | |
3115 | } | |
e614b18d | 3116 | |
1da177e4 LT |
3117 | if (info_idx != -1) |
3118 | ret = fbcon_takeover(1); | |
3119 | } else { | |
e614b18d | 3120 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
5428b044 AD |
3121 | if (con2fb_map_boot[i] == idx && |
3122 | con2fb_map[i] == -1) | |
1da177e4 LT |
3123 | set_con2fb_map(i, idx, 0); |
3124 | } | |
3125 | } | |
3126 | ||
623e71b0 | 3127 | done: |
1da177e4 LT |
3128 | return ret; |
3129 | } | |
3130 | ||
3131 | static void fbcon_fb_blanked(struct fb_info *info, int blank) | |
3132 | { | |
3133 | struct fbcon_ops *ops = info->fbcon_par; | |
3134 | struct vc_data *vc; | |
3135 | ||
3136 | if (!ops || ops->currcon < 0) | |
3137 | return; | |
3138 | ||
3139 | vc = vc_cons[ops->currcon].d; | |
3140 | if (vc->vc_mode != KD_TEXT || | |
3141 | registered_fb[con2fb_map[ops->currcon]] != info) | |
3142 | return; | |
3143 | ||
3144 | if (CON_IS_VISIBLE(vc)) { | |
3145 | if (blank) | |
3146 | do_blank_screen(0); | |
3147 | else | |
3148 | do_unblank_screen(0); | |
3149 | } | |
3150 | ops->blank_state = blank; | |
3151 | } | |
3152 | ||
3153 | static void fbcon_new_modelist(struct fb_info *info) | |
3154 | { | |
3155 | int i; | |
3156 | struct vc_data *vc; | |
3157 | struct fb_var_screeninfo var; | |
9791d763 | 3158 | const struct fb_videomode *mode; |
1da177e4 | 3159 | |
e614b18d | 3160 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3161 | if (registered_fb[con2fb_map[i]] != info) |
3162 | continue; | |
3163 | if (!fb_display[i].mode) | |
3164 | continue; | |
3165 | vc = vc_cons[i].d; | |
3166 | display_to_var(&var, &fb_display[i]); | |
8fb6567e MJ |
3167 | mode = fb_find_nearest_mode(fb_display[i].mode, |
3168 | &info->modelist); | |
1da177e4 LT |
3169 | fb_videomode_to_var(&var, mode); |
3170 | ||
3171 | if (vc) | |
3172 | fbcon_set_disp(info, &var, vc); | |
3173 | else | |
3174 | fbcon_preset_disp(info, &var, i); | |
3175 | ||
3176 | } | |
3177 | } | |
3178 | ||
38a3dc51 AD |
3179 | static void fbcon_get_requirement(struct fb_info *info, |
3180 | struct fb_blit_caps *caps) | |
3181 | { | |
3182 | struct vc_data *vc; | |
3183 | struct display *p; | |
38a3dc51 AD |
3184 | |
3185 | if (caps->flags) { | |
167f07f1 | 3186 | int i, charcnt; |
38a3dc51 AD |
3187 | |
3188 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3189 | vc = vc_cons[i].d; | |
167f07f1 AD |
3190 | if (vc && vc->vc_mode == KD_TEXT && |
3191 | info->node == con2fb_map[i]) { | |
38a3dc51 AD |
3192 | p = &fb_display[i]; |
3193 | caps->x |= 1 << (vc->vc_font.width - 1); | |
3194 | caps->y |= 1 << (vc->vc_font.height - 1); | |
3195 | charcnt = (p->userfont) ? | |
3196 | FNTCHARCNT(p->fontdata) : 256; | |
3197 | if (caps->len < charcnt) | |
3198 | caps->len = charcnt; | |
3199 | } | |
3200 | } | |
3201 | } else { | |
3202 | vc = vc_cons[fg_console].d; | |
3203 | ||
167f07f1 AD |
3204 | if (vc && vc->vc_mode == KD_TEXT && |
3205 | info->node == con2fb_map[fg_console]) { | |
38a3dc51 | 3206 | p = &fb_display[fg_console]; |
167f07f1 AD |
3207 | caps->x = 1 << (vc->vc_font.width - 1); |
3208 | caps->y = 1 << (vc->vc_font.height - 1); | |
3209 | caps->len = (p->userfont) ? | |
38a3dc51 | 3210 | FNTCHARCNT(p->fontdata) : 256; |
38a3dc51 AD |
3211 | } |
3212 | } | |
3213 | } | |
3214 | ||
1da177e4 LT |
3215 | static int fbcon_event_notify(struct notifier_block *self, |
3216 | unsigned long action, void *data) | |
3217 | { | |
3218 | struct fb_event *event = data; | |
3219 | struct fb_info *info = event->info; | |
3220 | struct fb_videomode *mode; | |
3221 | struct fb_con2fbmap *con2fb; | |
38a3dc51 | 3222 | struct fb_blit_caps *caps; |
1da177e4 LT |
3223 | int ret = 0; |
3224 | ||
e614b18d AD |
3225 | /* |
3226 | * ignore all events except driver registration and deregistration | |
3227 | * if fbcon is not active | |
3228 | */ | |
3229 | if (fbcon_has_exited && !(action == FB_EVENT_FB_REGISTERED || | |
3230 | action == FB_EVENT_FB_UNREGISTERED)) | |
3231 | goto done; | |
3232 | ||
1da177e4 LT |
3233 | switch(action) { |
3234 | case FB_EVENT_SUSPEND: | |
3235 | fbcon_suspended(info); | |
3236 | break; | |
3237 | case FB_EVENT_RESUME: | |
3238 | fbcon_resumed(info); | |
3239 | break; | |
3240 | case FB_EVENT_MODE_CHANGE: | |
3241 | fbcon_modechanged(info); | |
3242 | break; | |
7726e9e1 AD |
3243 | case FB_EVENT_MODE_CHANGE_ALL: |
3244 | fbcon_set_all_vcs(info); | |
3245 | break; | |
1da177e4 LT |
3246 | case FB_EVENT_MODE_DELETE: |
3247 | mode = event->data; | |
3248 | ret = fbcon_mode_deleted(info, mode); | |
3249 | break; | |
3250 | case FB_EVENT_FB_REGISTERED: | |
623e71b0 | 3251 | ret = fbcon_fb_registered(info); |
1da177e4 | 3252 | break; |
e614b18d | 3253 | case FB_EVENT_FB_UNREGISTERED: |
623e71b0 | 3254 | ret = fbcon_fb_unregistered(info); |
e614b18d | 3255 | break; |
1da177e4 LT |
3256 | case FB_EVENT_SET_CONSOLE_MAP: |
3257 | con2fb = event->data; | |
3258 | ret = set_con2fb_map(con2fb->console - 1, | |
3259 | con2fb->framebuffer, 1); | |
3260 | break; | |
3261 | case FB_EVENT_GET_CONSOLE_MAP: | |
3262 | con2fb = event->data; | |
3263 | con2fb->framebuffer = con2fb_map[con2fb->console - 1]; | |
3264 | break; | |
3265 | case FB_EVENT_BLANK: | |
3266 | fbcon_fb_blanked(info, *(int *)event->data); | |
3267 | break; | |
3268 | case FB_EVENT_NEW_MODELIST: | |
3269 | fbcon_new_modelist(info); | |
3270 | break; | |
38a3dc51 AD |
3271 | case FB_EVENT_GET_REQ: |
3272 | caps = event->data; | |
3273 | fbcon_get_requirement(info, caps); | |
3274 | break; | |
1da177e4 LT |
3275 | } |
3276 | ||
e614b18d | 3277 | done: |
1da177e4 LT |
3278 | return ret; |
3279 | } | |
3280 | ||
3281 | /* | |
3282 | * The console `switch' structure for the frame buffer based console | |
3283 | */ | |
3284 | ||
3285 | static const struct consw fb_con = { | |
3286 | .owner = THIS_MODULE, | |
3287 | .con_startup = fbcon_startup, | |
3288 | .con_init = fbcon_init, | |
3289 | .con_deinit = fbcon_deinit, | |
3290 | .con_clear = fbcon_clear, | |
3291 | .con_putc = fbcon_putc, | |
3292 | .con_putcs = fbcon_putcs, | |
3293 | .con_cursor = fbcon_cursor, | |
3294 | .con_scroll = fbcon_scroll, | |
3295 | .con_bmove = fbcon_bmove, | |
3296 | .con_switch = fbcon_switch, | |
3297 | .con_blank = fbcon_blank, | |
3298 | .con_font_set = fbcon_set_font, | |
3299 | .con_font_get = fbcon_get_font, | |
3300 | .con_font_default = fbcon_set_def_font, | |
3301 | .con_font_copy = fbcon_copy_font, | |
3302 | .con_set_palette = fbcon_set_palette, | |
3303 | .con_scrolldelta = fbcon_scrolldelta, | |
3304 | .con_set_origin = fbcon_set_origin, | |
3305 | .con_invert_region = fbcon_invert_region, | |
3306 | .con_screen_pos = fbcon_screen_pos, | |
3307 | .con_getxy = fbcon_getxy, | |
3308 | .con_resize = fbcon_resize, | |
3309 | }; | |
3310 | ||
3311 | static struct notifier_block fbcon_event_notifier = { | |
3312 | .notifier_call = fbcon_event_notify, | |
3313 | }; | |
3314 | ||
0c6c1ce0 AD |
3315 | static ssize_t store_rotate(struct device *device, |
3316 | struct device_attribute *attr, const char *buf, | |
3317 | size_t count) | |
9a179176 AD |
3318 | { |
3319 | struct fb_info *info; | |
3320 | int rotate, idx; | |
3321 | char **last = NULL; | |
3322 | ||
e614b18d AD |
3323 | if (fbcon_has_exited) |
3324 | return count; | |
3325 | ||
9a179176 AD |
3326 | acquire_console_sem(); |
3327 | idx = con2fb_map[fg_console]; | |
3328 | ||
3329 | if (idx == -1 || registered_fb[idx] == NULL) | |
3330 | goto err; | |
3331 | ||
3332 | info = registered_fb[idx]; | |
3333 | rotate = simple_strtoul(buf, last, 0); | |
3334 | fbcon_rotate(info, rotate); | |
3335 | err: | |
3336 | release_console_sem(); | |
3337 | return count; | |
3338 | } | |
3339 | ||
0c6c1ce0 AD |
3340 | static ssize_t store_rotate_all(struct device *device, |
3341 | struct device_attribute *attr,const char *buf, | |
3342 | size_t count) | |
9a179176 AD |
3343 | { |
3344 | struct fb_info *info; | |
3345 | int rotate, idx; | |
3346 | char **last = NULL; | |
3347 | ||
e614b18d AD |
3348 | if (fbcon_has_exited) |
3349 | return count; | |
3350 | ||
9a179176 AD |
3351 | acquire_console_sem(); |
3352 | idx = con2fb_map[fg_console]; | |
3353 | ||
3354 | if (idx == -1 || registered_fb[idx] == NULL) | |
3355 | goto err; | |
3356 | ||
3357 | info = registered_fb[idx]; | |
3358 | rotate = simple_strtoul(buf, last, 0); | |
3359 | fbcon_rotate_all(info, rotate); | |
3360 | err: | |
3361 | release_console_sem(); | |
3362 | return count; | |
3363 | } | |
3364 | ||
0c6c1ce0 AD |
3365 | static ssize_t show_rotate(struct device *device, |
3366 | struct device_attribute *attr,char *buf) | |
9a179176 AD |
3367 | { |
3368 | struct fb_info *info; | |
3369 | int rotate = 0, idx; | |
3370 | ||
e614b18d AD |
3371 | if (fbcon_has_exited) |
3372 | return 0; | |
3373 | ||
9a179176 AD |
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 | rotate = fbcon_get_rotate(info); | |
3382 | err: | |
3383 | release_console_sem(); | |
3384 | return snprintf(buf, PAGE_SIZE, "%d\n", rotate); | |
3385 | } | |
3386 | ||
0c6c1ce0 AD |
3387 | static ssize_t show_cursor_blink(struct device *device, |
3388 | struct device_attribute *attr, char *buf) | |
acba9cd0 AD |
3389 | { |
3390 | struct fb_info *info; | |
3391 | struct fbcon_ops *ops; | |
3392 | int idx, blink = -1; | |
3393 | ||
3394 | if (fbcon_has_exited) | |
3395 | return 0; | |
3396 | ||
3397 | acquire_console_sem(); | |
3398 | idx = con2fb_map[fg_console]; | |
3399 | ||
3400 | if (idx == -1 || registered_fb[idx] == NULL) | |
3401 | goto err; | |
3402 | ||
3403 | info = registered_fb[idx]; | |
3404 | ops = info->fbcon_par; | |
3405 | ||
3406 | if (!ops) | |
3407 | goto err; | |
3408 | ||
3409 | blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0; | |
3410 | err: | |
3411 | release_console_sem(); | |
3412 | return snprintf(buf, PAGE_SIZE, "%d\n", blink); | |
3413 | } | |
3414 | ||
0c6c1ce0 AD |
3415 | static ssize_t store_cursor_blink(struct device *device, |
3416 | struct device_attribute *attr, | |
acba9cd0 AD |
3417 | const char *buf, size_t count) |
3418 | { | |
3419 | struct fb_info *info; | |
3420 | int blink, idx; | |
3421 | char **last = NULL; | |
3422 | ||
3423 | if (fbcon_has_exited) | |
3424 | return count; | |
3425 | ||
3426 | acquire_console_sem(); | |
3427 | idx = con2fb_map[fg_console]; | |
3428 | ||
3429 | if (idx == -1 || registered_fb[idx] == NULL) | |
3430 | goto err; | |
3431 | ||
3432 | info = registered_fb[idx]; | |
3433 | ||
3434 | if (!info->fbcon_par) | |
3435 | goto err; | |
3436 | ||
3437 | blink = simple_strtoul(buf, last, 0); | |
3438 | ||
3439 | if (blink) { | |
3440 | fbcon_cursor_noblink = 0; | |
3441 | fbcon_add_cursor_timer(info); | |
3442 | } else { | |
3443 | fbcon_cursor_noblink = 1; | |
3444 | fbcon_del_cursor_timer(info); | |
3445 | } | |
3446 | ||
3447 | err: | |
3448 | release_console_sem(); | |
3449 | return count; | |
3450 | } | |
3451 | ||
0c6c1ce0 | 3452 | static struct device_attribute device_attrs[] = { |
9a179176 AD |
3453 | __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), |
3454 | __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all), | |
acba9cd0 AD |
3455 | __ATTR(cursor_blink, S_IRUGO|S_IWUSR, show_cursor_blink, |
3456 | store_cursor_blink), | |
9a179176 AD |
3457 | }; |
3458 | ||
0c6c1ce0 | 3459 | static int fbcon_init_device(void) |
9a179176 | 3460 | { |
0a727dea AD |
3461 | int i, error = 0; |
3462 | ||
3463 | fbcon_has_sysfs = 1; | |
3464 | ||
0c6c1ce0 AD |
3465 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) { |
3466 | error = device_create_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3467 | |
3468 | if (error) | |
3469 | break; | |
3470 | } | |
3471 | ||
3472 | if (error) { | |
3473 | while (--i >= 0) | |
0c6c1ce0 | 3474 | device_remove_file(fbcon_device, &device_attrs[i]); |
0a727dea AD |
3475 | |
3476 | fbcon_has_sysfs = 0; | |
3477 | } | |
9a179176 | 3478 | |
9a179176 AD |
3479 | return 0; |
3480 | } | |
3481 | ||
5428b044 | 3482 | static void fbcon_start(void) |
1da177e4 | 3483 | { |
5428b044 AD |
3484 | if (num_registered_fb) { |
3485 | int i; | |
9a179176 | 3486 | |
5428b044 | 3487 | acquire_console_sem(); |
1da177e4 | 3488 | |
1da177e4 LT |
3489 | for (i = 0; i < FB_MAX; i++) { |
3490 | if (registered_fb[i] != NULL) { | |
3491 | info_idx = i; | |
3492 | break; | |
3493 | } | |
3494 | } | |
5428b044 AD |
3495 | |
3496 | release_console_sem(); | |
1da177e4 LT |
3497 | fbcon_takeover(0); |
3498 | } | |
9a179176 AD |
3499 | } |
3500 | ||
5428b044 | 3501 | static void fbcon_exit(void) |
9a179176 | 3502 | { |
e55186fe AD |
3503 | struct fb_info *info; |
3504 | int i, j, mapped; | |
3505 | ||
e614b18d AD |
3506 | if (fbcon_has_exited) |
3507 | return; | |
3508 | ||
e55186fe | 3509 | #ifdef CONFIG_ATARI |
956295d5 | 3510 | free_irq(IRQ_AUTO_4, fb_vbl_handler); |
e55186fe AD |
3511 | #endif |
3512 | #ifdef CONFIG_MAC | |
3513 | if (MACH_IS_MAC && vbl_detected) | |
956295d5 | 3514 | free_irq(IRQ_MAC_VBL, fb_vbl_handler); |
e55186fe AD |
3515 | #endif |
3516 | ||
3517 | kfree((void *)softback_buf); | |
5428b044 | 3518 | softback_buf = 0UL; |
e55186fe AD |
3519 | |
3520 | for (i = 0; i < FB_MAX; i++) { | |
3521 | mapped = 0; | |
3522 | info = registered_fb[i]; | |
3523 | ||
3524 | if (info == NULL) | |
3525 | continue; | |
3526 | ||
e614b18d AD |
3527 | for (j = first_fb_vc; j <= last_fb_vc; j++) { |
3528 | if (con2fb_map[j] == i) | |
e55186fe | 3529 | mapped = 1; |
e55186fe AD |
3530 | } |
3531 | ||
3532 | if (mapped) { | |
3533 | if (info->fbops->fb_release) | |
3534 | info->fbops->fb_release(info, 0); | |
3535 | module_put(info->fbops->owner); | |
5428b044 AD |
3536 | |
3537 | if (info->fbcon_par) { | |
e299dd4d DJ |
3538 | struct fbcon_ops *ops = info->fbcon_par; |
3539 | ||
5428b044 | 3540 | fbcon_del_cursor_timer(info); |
e299dd4d | 3541 | kfree(ops->cursor_src); |
5428b044 AD |
3542 | kfree(info->fbcon_par); |
3543 | info->fbcon_par = NULL; | |
3544 | } | |
3545 | ||
3546 | if (info->queue.func == fb_flashcursor) | |
3547 | info->queue.func = NULL; | |
e55186fe AD |
3548 | } |
3549 | } | |
3550 | ||
e614b18d | 3551 | fbcon_has_exited = 1; |
5428b044 AD |
3552 | } |
3553 | ||
3554 | static int __init fb_console_init(void) | |
3555 | { | |
3556 | int i; | |
3557 | ||
3558 | acquire_console_sem(); | |
3559 | fb_register_client(&fbcon_event_notifier); | |
0c6c1ce0 | 3560 | fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), "fbcon"); |
5428b044 | 3561 | |
0c6c1ce0 AD |
3562 | if (IS_ERR(fbcon_device)) { |
3563 | printk(KERN_WARNING "Unable to create device " | |
5428b044 | 3564 | "for fbcon; errno = %ld\n", |
0c6c1ce0 AD |
3565 | PTR_ERR(fbcon_device)); |
3566 | fbcon_device = NULL; | |
5428b044 | 3567 | } else |
0c6c1ce0 | 3568 | fbcon_init_device(); |
5428b044 AD |
3569 | |
3570 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
3571 | con2fb_map[i] = -1; | |
3572 | ||
3573 | release_console_sem(); | |
3574 | fbcon_start(); | |
3575 | return 0; | |
3576 | } | |
3577 | ||
3578 | module_init(fb_console_init); | |
3579 | ||
3580 | #ifdef MODULE | |
3581 | ||
0c6c1ce0 | 3582 | static void __exit fbcon_deinit_device(void) |
5428b044 AD |
3583 | { |
3584 | int i; | |
3585 | ||
0a727dea | 3586 | if (fbcon_has_sysfs) { |
0c6c1ce0 AD |
3587 | for (i = 0; i < ARRAY_SIZE(device_attrs); i++) |
3588 | device_remove_file(fbcon_device, &device_attrs[i]); | |
0a727dea AD |
3589 | |
3590 | fbcon_has_sysfs = 0; | |
3591 | } | |
9a179176 AD |
3592 | } |
3593 | ||
1da177e4 LT |
3594 | static void __exit fb_console_exit(void) |
3595 | { | |
3596 | acquire_console_sem(); | |
3597 | fb_unregister_client(&fbcon_event_notifier); | |
0c6c1ce0 AD |
3598 | fbcon_deinit_device(); |
3599 | device_destroy(fb_class, MKDEV(0, 0)); | |
e614b18d | 3600 | fbcon_exit(); |
1da177e4 | 3601 | release_console_sem(); |
e614b18d | 3602 | unregister_con_driver(&fb_con); |
1da177e4 LT |
3603 | } |
3604 | ||
3605 | module_exit(fb_console_exit); | |
3606 | ||
3607 | #endif | |
3608 | ||
3609 | MODULE_LICENSE("GPL"); |