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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/video/fbcon.c -- Low level frame buffer based console driver | |
3 | * | |
4 | * Copyright (C) 1995 Geert Uytterhoeven | |
5 | * | |
6 | * | |
7 | * This file is based on the original Amiga console driver (amicon.c): | |
8 | * | |
9 | * Copyright (C) 1993 Hamish Macdonald | |
10 | * Greg Harp | |
11 | * Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk] | |
12 | * | |
13 | * with work by William Rucklidge (wjr@cs.cornell.edu) | |
14 | * Geert Uytterhoeven | |
15 | * Jes Sorensen (jds@kom.auc.dk) | |
16 | * Martin Apel | |
17 | * | |
18 | * and on the original Atari console driver (atacon.c): | |
19 | * | |
20 | * Copyright (C) 1993 Bjoern Brauel | |
21 | * Roman Hodek | |
22 | * | |
23 | * with work by Guenther Kelleter | |
24 | * Martin Schaller | |
25 | * Andreas Schwab | |
26 | * | |
27 | * Hardware cursor support added by Emmanuel Marty (core@ggi-project.org) | |
28 | * Smart redraw scrolling, arbitrary font width support, 512char font support | |
29 | * and software scrollback added by | |
30 | * Jakub Jelinek (jj@ultra.linux.cz) | |
31 | * | |
32 | * Random hacking by Martin Mares <mj@ucw.cz> | |
33 | * | |
34 | * 2001 - Documented with DocBook | |
35 | * - Brad Douglas <brad@neruo.com> | |
36 | * | |
37 | * The low level operations for the various display memory organizations are | |
38 | * now in separate source files. | |
39 | * | |
40 | * Currently the following organizations are supported: | |
41 | * | |
42 | * o afb Amiga bitplanes | |
43 | * o cfb{2,4,8,16,24,32} Packed pixels | |
44 | * o ilbm Amiga interleaved bitplanes | |
45 | * o iplan2p[248] Atari interleaved bitplanes | |
46 | * o mfb Monochrome | |
47 | * o vga VGA characters/attributes | |
48 | * | |
49 | * To do: | |
50 | * | |
51 | * - Implement 16 plane mode (iplan2p16) | |
52 | * | |
53 | * | |
54 | * This file is subject to the terms and conditions of the GNU General Public | |
55 | * License. See the file COPYING in the main directory of this archive for | |
56 | * more details. | |
57 | */ | |
58 | ||
59 | #undef FBCONDEBUG | |
60 | ||
1da177e4 LT |
61 | #include <linux/module.h> |
62 | #include <linux/types.h> | |
1da177e4 LT |
63 | #include <linux/fs.h> |
64 | #include <linux/kernel.h> | |
65 | #include <linux/delay.h> /* MSch: for IRQ probe */ | |
1da177e4 LT |
66 | #include <linux/console.h> |
67 | #include <linux/string.h> | |
68 | #include <linux/kd.h> | |
69 | #include <linux/slab.h> | |
70 | #include <linux/fb.h> | |
71 | #include <linux/vt_kern.h> | |
72 | #include <linux/selection.h> | |
73 | #include <linux/font.h> | |
74 | #include <linux/smp.h> | |
75 | #include <linux/init.h> | |
76 | #include <linux/interrupt.h> | |
77 | #include <linux/crc32.h> /* For counting font checksums */ | |
78 | #include <asm/irq.h> | |
79 | #include <asm/system.h> | |
80 | #include <asm/uaccess.h> | |
81 | #ifdef CONFIG_ATARI | |
82 | #include <asm/atariints.h> | |
83 | #endif | |
84 | #ifdef CONFIG_MAC | |
85 | #include <asm/macints.h> | |
86 | #endif | |
87 | #if defined(__mc68000__) || defined(CONFIG_APUS) | |
88 | #include <asm/machdep.h> | |
89 | #include <asm/setup.h> | |
90 | #endif | |
91 | ||
92 | #include "fbcon.h" | |
93 | ||
94 | #ifdef FBCONDEBUG | |
95 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) | |
96 | #else | |
97 | # define DPRINTK(fmt, args...) | |
98 | #endif | |
99 | ||
100 | enum { | |
101 | FBCON_LOGO_CANSHOW = -1, /* the logo can be shown */ | |
102 | FBCON_LOGO_DRAW = -2, /* draw the logo to a console */ | |
103 | FBCON_LOGO_DONTSHOW = -3 /* do not show the logo */ | |
104 | }; | |
105 | ||
ab767201 | 106 | static struct display fb_display[MAX_NR_CONSOLES]; |
e4fc2761 | 107 | |
1da177e4 LT |
108 | static signed char con2fb_map[MAX_NR_CONSOLES]; |
109 | static signed char con2fb_map_boot[MAX_NR_CONSOLES]; | |
70802c60 | 110 | #ifndef MODULE |
1da177e4 | 111 | static int logo_height; |
70802c60 | 112 | #endif |
1da177e4 LT |
113 | static int logo_lines; |
114 | /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO | |
115 | enums. */ | |
116 | static int logo_shown = FBCON_LOGO_CANSHOW; | |
117 | /* Software scrollback */ | |
118 | static int fbcon_softback_size = 32768; | |
119 | static unsigned long softback_buf, softback_curr; | |
120 | static unsigned long softback_in; | |
121 | static unsigned long softback_top, softback_end; | |
122 | static int softback_lines; | |
123 | /* console mappings */ | |
124 | static int first_fb_vc; | |
125 | static int last_fb_vc = MAX_NR_CONSOLES - 1; | |
126 | static int fbcon_is_default = 1; | |
e614b18d AD |
127 | static int fbcon_has_exited; |
128 | ||
1da177e4 LT |
129 | /* font data */ |
130 | static char fontname[40]; | |
131 | ||
132 | /* current fb_info */ | |
133 | static int info_idx = -1; | |
134 | ||
e4fc2761 AD |
135 | /* console rotation */ |
136 | static int rotate; | |
0a727dea | 137 | static int fbcon_has_sysfs; |
e4fc2761 | 138 | |
1da177e4 LT |
139 | static const struct consw fb_con; |
140 | ||
141 | #define CM_SOFTBACK (8) | |
142 | ||
143 | #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) | |
144 | ||
1da177e4 LT |
145 | static int fbcon_set_origin(struct vc_data *); |
146 | ||
147 | #define CURSOR_DRAW_DELAY (1) | |
148 | ||
149 | /* # VBL ints between cursor state changes */ | |
1da177e4 LT |
150 | #define ATARI_CURSOR_BLINK_RATE (42) |
151 | #define MAC_CURSOR_BLINK_RATE (32) | |
152 | #define DEFAULT_CURSOR_BLINK_RATE (20) | |
153 | ||
154 | static int vbl_cursor_cnt; | |
155 | ||
156 | #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) | |
157 | ||
158 | /* | |
159 | * Interface used by the world | |
160 | */ | |
161 | ||
162 | static const char *fbcon_startup(void); | |
163 | static void fbcon_init(struct vc_data *vc, int init); | |
164 | static void fbcon_deinit(struct vc_data *vc); | |
165 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, | |
166 | int width); | |
167 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos); | |
168 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
169 | int count, int ypos, int xpos); | |
170 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only); | |
171 | static void fbcon_cursor(struct vc_data *vc, int mode); | |
172 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
173 | int count); | |
174 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
175 | int height, int width); | |
176 | static int fbcon_switch(struct vc_data *vc); | |
177 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch); | |
178 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table); | |
179 | static int fbcon_scrolldelta(struct vc_data *vc, int lines); | |
180 | ||
181 | /* | |
182 | * Internal routines | |
183 | */ | |
1da177e4 LT |
184 | static __inline__ void ywrap_up(struct vc_data *vc, int count); |
185 | static __inline__ void ywrap_down(struct vc_data *vc, int count); | |
186 | static __inline__ void ypan_up(struct vc_data *vc, int count); | |
187 | static __inline__ void ypan_down(struct vc_data *vc, int count); | |
188 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
189 | int dy, int dx, int height, int width, u_int y_break); | |
190 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
191 | struct vc_data *vc); | |
192 | static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
193 | int unit); | |
194 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
195 | int line, int count, int dy); | |
a812c94b AD |
196 | static void fbcon_modechanged(struct fb_info *info); |
197 | static void fbcon_set_all_vcs(struct fb_info *info); | |
5428b044 AD |
198 | static void fbcon_start(void); |
199 | static void fbcon_exit(void); | |
9a179176 AD |
200 | static struct class_device *fbcon_class_device; |
201 | ||
1da177e4 LT |
202 | #ifdef CONFIG_MAC |
203 | /* | |
204 | * On the Macintoy, there may or may not be a working VBL int. We need to probe | |
205 | */ | |
206 | static int vbl_detected; | |
207 | ||
7d12e780 | 208 | static irqreturn_t fb_vbl_detect(int irq, void *dummy) |
1da177e4 LT |
209 | { |
210 | vbl_detected++; | |
211 | return IRQ_HANDLED; | |
212 | } | |
213 | #endif | |
214 | ||
dbcbfe1e | 215 | #ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION |
b73deed3 | 216 | static inline void fbcon_set_rotation(struct fb_info *info) |
dbcbfe1e AD |
217 | { |
218 | struct fbcon_ops *ops = info->fbcon_par; | |
219 | ||
220 | if (!(info->flags & FBINFO_MISC_TILEBLITTING) && | |
b73deed3 AD |
221 | ops->p->con_rotate < 4) |
222 | ops->rotate = ops->p->con_rotate; | |
dbcbfe1e AD |
223 | else |
224 | ops->rotate = 0; | |
225 | } | |
a812c94b AD |
226 | |
227 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
228 | { | |
229 | struct fbcon_ops *ops= info->fbcon_par; | |
230 | struct fb_info *fb_info; | |
231 | ||
232 | if (!ops || ops->currcon == -1) | |
233 | return; | |
234 | ||
235 | fb_info = registered_fb[con2fb_map[ops->currcon]]; | |
236 | ||
237 | if (info == fb_info) { | |
238 | struct display *p = &fb_display[ops->currcon]; | |
239 | ||
240 | if (rotate < 4) | |
241 | p->con_rotate = rotate; | |
242 | else | |
243 | p->con_rotate = 0; | |
244 | ||
245 | fbcon_modechanged(info); | |
246 | } | |
247 | } | |
248 | ||
249 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
250 | { | |
251 | struct fbcon_ops *ops = info->fbcon_par; | |
252 | struct vc_data *vc; | |
253 | struct display *p; | |
254 | int i; | |
255 | ||
256 | if (!ops || ops->currcon < 0 || rotate > 3) | |
257 | return; | |
258 | ||
e614b18d | 259 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
a812c94b AD |
260 | vc = vc_cons[i].d; |
261 | if (!vc || vc->vc_mode != KD_TEXT || | |
262 | registered_fb[con2fb_map[i]] != info) | |
263 | continue; | |
264 | ||
265 | p = &fb_display[vc->vc_num]; | |
266 | p->con_rotate = rotate; | |
267 | } | |
268 | ||
269 | fbcon_set_all_vcs(info); | |
270 | } | |
dbcbfe1e | 271 | #else |
b73deed3 | 272 | static inline void fbcon_set_rotation(struct fb_info *info) |
e4fc2761 AD |
273 | { |
274 | struct fbcon_ops *ops = info->fbcon_par; | |
275 | ||
276 | ops->rotate = FB_ROTATE_UR; | |
277 | } | |
a812c94b AD |
278 | |
279 | static void fbcon_rotate(struct fb_info *info, u32 rotate) | |
280 | { | |
281 | return; | |
282 | } | |
283 | ||
284 | static void fbcon_rotate_all(struct fb_info *info, u32 rotate) | |
285 | { | |
286 | return; | |
287 | } | |
dbcbfe1e | 288 | #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */ |
e4fc2761 | 289 | |
a812c94b AD |
290 | static int fbcon_get_rotate(struct fb_info *info) |
291 | { | |
292 | struct fbcon_ops *ops = info->fbcon_par; | |
293 | ||
294 | return (ops) ? ops->rotate : 0; | |
295 | } | |
296 | ||
1da177e4 LT |
297 | static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) |
298 | { | |
299 | struct fbcon_ops *ops = info->fbcon_par; | |
300 | ||
301 | return (info->state != FBINFO_STATE_RUNNING || | |
302 | vc->vc_mode != KD_TEXT || ops->graphics); | |
303 | } | |
304 | ||
305 | static inline int get_color(struct vc_data *vc, struct fb_info *info, | |
306 | u16 c, int is_fg) | |
307 | { | |
b8c90945 | 308 | int depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
309 | int color = 0; |
310 | ||
311 | if (console_blanked) { | |
312 | unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; | |
313 | ||
314 | c = vc->vc_video_erase_char & charmask; | |
315 | } | |
316 | ||
317 | if (depth != 1) | |
318 | color = (is_fg) ? attr_fgcol((vc->vc_hi_font_mask) ? 9 : 8, c) | |
319 | : attr_bgcol((vc->vc_hi_font_mask) ? 13 : 12, c); | |
320 | ||
321 | switch (depth) { | |
322 | case 1: | |
323 | { | |
b8c90945 AD |
324 | int col = ~(0xfff << (max(info->var.green.length, |
325 | max(info->var.red.length, | |
326 | info->var.blue.length)))) & 0xff; | |
327 | ||
1da177e4 | 328 | /* 0 or 1 */ |
b8c90945 AD |
329 | int fg = (info->fix.visual != FB_VISUAL_MONO01) ? col : 0; |
330 | int bg = (info->fix.visual != FB_VISUAL_MONO01) ? 0 : col; | |
1da177e4 LT |
331 | |
332 | if (console_blanked) | |
333 | fg = bg; | |
334 | ||
335 | color = (is_fg) ? fg : bg; | |
336 | break; | |
337 | } | |
338 | case 2: | |
339 | /* | |
340 | * Scale down 16-colors to 4 colors. Default 4-color palette | |
2cc38ed1 AD |
341 | * is grayscale. However, simply dividing the values by 4 |
342 | * will not work, as colors 1, 2 and 3 will be scaled-down | |
343 | * to zero rendering them invisible. So empirically convert | |
344 | * colors to a sane 4-level grayscale. | |
1da177e4 | 345 | */ |
2cc38ed1 AD |
346 | switch (color) { |
347 | case 0: | |
348 | color = 0; /* black */ | |
349 | break; | |
350 | case 1 ... 6: | |
351 | color = 2; /* white */ | |
352 | break; | |
353 | case 7 ... 8: | |
354 | color = 1; /* gray */ | |
355 | break; | |
356 | default: | |
357 | color = 3; /* intense white */ | |
358 | break; | |
359 | } | |
360 | break; | |
1da177e4 LT |
361 | case 3: |
362 | /* | |
363 | * Last 8 entries of default 16-color palette is a more intense | |
364 | * version of the first 8 (i.e., same chrominance, different | |
365 | * luminance). | |
366 | */ | |
367 | color &= 7; | |
368 | break; | |
369 | } | |
370 | ||
371 | ||
372 | return color; | |
373 | } | |
374 | ||
4d9c5b6e AD |
375 | static void fbcon_update_softback(struct vc_data *vc) |
376 | { | |
377 | int l = fbcon_softback_size / vc->vc_size_row; | |
378 | ||
379 | if (l > 5) | |
380 | softback_end = softback_buf + l * vc->vc_size_row; | |
381 | else | |
382 | /* Smaller scrollback makes no sense, and 0 would screw | |
383 | the operation totally */ | |
384 | softback_top = 0; | |
385 | } | |
386 | ||
c4028958 | 387 | static void fb_flashcursor(struct work_struct *work) |
1da177e4 | 388 | { |
c4028958 | 389 | struct fb_info *info = container_of(work, struct fb_info, queue); |
1da177e4 LT |
390 | struct fbcon_ops *ops = info->fbcon_par; |
391 | struct display *p; | |
392 | struct vc_data *vc = NULL; | |
393 | int c; | |
394 | int mode; | |
395 | ||
5428b044 AD |
396 | acquire_console_sem(); |
397 | if (ops && ops->currcon != -1) | |
1da177e4 LT |
398 | vc = vc_cons[ops->currcon].d; |
399 | ||
400 | if (!vc || !CON_IS_VISIBLE(vc) || | |
dbd4f128 | 401 | registered_fb[con2fb_map[vc->vc_num]] != info || |
212f2639 | 402 | vc->vc_deccm != 1) { |
5428b044 | 403 | release_console_sem(); |
1da177e4 | 404 | return; |
5428b044 AD |
405 | } |
406 | ||
1da177e4 LT |
407 | p = &fb_display[vc->vc_num]; |
408 | c = scr_readw((u16 *) vc->vc_pos); | |
409 | mode = (!ops->cursor_flash || ops->cursor_state.enable) ? | |
410 | CM_ERASE : CM_DRAW; | |
b73deed3 | 411 | ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1), |
1da177e4 LT |
412 | get_color(vc, info, c, 0)); |
413 | release_console_sem(); | |
414 | } | |
415 | ||
41359dca | 416 | #if defined(CONFIG_ATARI) || defined(CONFIG_MAC) |
1da177e4 | 417 | static int cursor_blink_rate; |
7d12e780 | 418 | static irqreturn_t fb_vbl_handler(int irq, void *dev_id) |
1da177e4 LT |
419 | { |
420 | struct fb_info *info = dev_id; | |
421 | ||
422 | if (vbl_cursor_cnt && --vbl_cursor_cnt == 0) { | |
423 | schedule_work(&info->queue); | |
424 | vbl_cursor_cnt = cursor_blink_rate; | |
425 | } | |
426 | return IRQ_HANDLED; | |
427 | } | |
428 | #endif | |
429 | ||
430 | static void cursor_timer_handler(unsigned long dev_addr) | |
431 | { | |
432 | struct fb_info *info = (struct fb_info *) dev_addr; | |
433 | struct fbcon_ops *ops = info->fbcon_par; | |
434 | ||
435 | schedule_work(&info->queue); | |
436 | mod_timer(&ops->cursor_timer, jiffies + HZ/5); | |
437 | } | |
438 | ||
88fb2c6e AD |
439 | static void fbcon_add_cursor_timer(struct fb_info *info) |
440 | { | |
441 | struct fbcon_ops *ops = info->fbcon_par; | |
442 | ||
443 | if ((!info->queue.func || info->queue.func == fb_flashcursor) && | |
444 | !(ops->flags & FBCON_FLAGS_CURSOR_TIMER)) { | |
445 | if (!info->queue.func) | |
c4028958 | 446 | INIT_WORK(&info->queue, fb_flashcursor); |
88fb2c6e AD |
447 | |
448 | init_timer(&ops->cursor_timer); | |
449 | ops->cursor_timer.function = cursor_timer_handler; | |
450 | ops->cursor_timer.expires = jiffies + HZ / 5; | |
451 | ops->cursor_timer.data = (unsigned long ) info; | |
452 | add_timer(&ops->cursor_timer); | |
453 | ops->flags |= FBCON_FLAGS_CURSOR_TIMER; | |
454 | } | |
455 | } | |
456 | ||
457 | static void fbcon_del_cursor_timer(struct fb_info *info) | |
458 | { | |
459 | struct fbcon_ops *ops = info->fbcon_par; | |
460 | ||
461 | if (info->queue.func == fb_flashcursor && | |
462 | ops->flags & FBCON_FLAGS_CURSOR_TIMER) { | |
463 | del_timer_sync(&ops->cursor_timer); | |
464 | ops->flags &= ~FBCON_FLAGS_CURSOR_TIMER; | |
465 | } | |
466 | } | |
467 | ||
1da177e4 LT |
468 | #ifndef MODULE |
469 | static int __init fb_console_setup(char *this_opt) | |
470 | { | |
471 | char *options; | |
472 | int i, j; | |
473 | ||
474 | if (!this_opt || !*this_opt) | |
9b41046c | 475 | return 1; |
1da177e4 LT |
476 | |
477 | while ((options = strsep(&this_opt, ",")) != NULL) { | |
478 | if (!strncmp(options, "font:", 5)) | |
479 | strcpy(fontname, options + 5); | |
480 | ||
481 | if (!strncmp(options, "scrollback:", 11)) { | |
482 | options += 11; | |
483 | if (*options) { | |
484 | fbcon_softback_size = simple_strtoul(options, &options, 0); | |
485 | if (*options == 'k' || *options == 'K') { | |
486 | fbcon_softback_size *= 1024; | |
487 | options++; | |
488 | } | |
489 | if (*options != ',') | |
9b41046c | 490 | return 1; |
1da177e4 LT |
491 | options++; |
492 | } else | |
9b41046c | 493 | return 1; |
1da177e4 LT |
494 | } |
495 | ||
496 | if (!strncmp(options, "map:", 4)) { | |
497 | options += 4; | |
498 | if (*options) | |
499 | for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { | |
500 | if (!options[j]) | |
501 | j = 0; | |
502 | con2fb_map_boot[i] = | |
503 | (options[j++]-'0') % FB_MAX; | |
504 | } | |
9b41046c | 505 | return 1; |
1da177e4 LT |
506 | } |
507 | ||
508 | if (!strncmp(options, "vc:", 3)) { | |
509 | options += 3; | |
510 | if (*options) | |
511 | first_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
512 | if (first_fb_vc < 0) | |
513 | first_fb_vc = 0; | |
514 | if (*options++ == '-') | |
515 | last_fb_vc = simple_strtoul(options, &options, 10) - 1; | |
516 | fbcon_is_default = 0; | |
517 | } | |
e4fc2761 AD |
518 | |
519 | if (!strncmp(options, "rotate:", 7)) { | |
520 | options += 7; | |
521 | if (*options) | |
522 | rotate = simple_strtoul(options, &options, 0); | |
523 | if (rotate > 3) | |
524 | rotate = 0; | |
525 | } | |
1da177e4 | 526 | } |
9b41046c | 527 | return 1; |
1da177e4 LT |
528 | } |
529 | ||
530 | __setup("fbcon=", fb_console_setup); | |
531 | #endif | |
532 | ||
533 | static int search_fb_in_map(int idx) | |
534 | { | |
535 | int i, retval = 0; | |
536 | ||
e614b18d | 537 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
538 | if (con2fb_map[i] == idx) |
539 | retval = 1; | |
540 | } | |
541 | return retval; | |
542 | } | |
543 | ||
544 | static int search_for_mapped_con(void) | |
545 | { | |
546 | int i, retval = 0; | |
547 | ||
e614b18d | 548 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
549 | if (con2fb_map[i] != -1) |
550 | retval = 1; | |
551 | } | |
552 | return retval; | |
553 | } | |
554 | ||
555 | static int fbcon_takeover(int show_logo) | |
556 | { | |
557 | int err, i; | |
558 | ||
559 | if (!num_registered_fb) | |
560 | return -ENODEV; | |
561 | ||
562 | if (!show_logo) | |
563 | logo_shown = FBCON_LOGO_DONTSHOW; | |
564 | ||
565 | for (i = first_fb_vc; i <= last_fb_vc; i++) | |
566 | con2fb_map[i] = info_idx; | |
567 | ||
568 | err = take_over_console(&fb_con, first_fb_vc, last_fb_vc, | |
569 | fbcon_is_default); | |
e614b18d | 570 | |
1da177e4 LT |
571 | if (err) { |
572 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
573 | con2fb_map[i] = -1; | |
574 | } | |
575 | info_idx = -1; | |
576 | } | |
577 | ||
578 | return err; | |
579 | } | |
580 | ||
70802c60 AD |
581 | #ifdef MODULE |
582 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, | |
583 | int cols, int rows, int new_cols, int new_rows) | |
584 | { | |
585 | logo_shown = FBCON_LOGO_DONTSHOW; | |
586 | } | |
587 | #else | |
1da177e4 LT |
588 | static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, |
589 | int cols, int rows, int new_cols, int new_rows) | |
590 | { | |
591 | /* Need to make room for the logo */ | |
9c44e5f6 | 592 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
593 | int cnt, erase = vc->vc_video_erase_char, step; |
594 | unsigned short *save = NULL, *r, *q; | |
595 | ||
70802c60 AD |
596 | if (info->flags & FBINFO_MODULE) { |
597 | logo_shown = FBCON_LOGO_DONTSHOW; | |
598 | return; | |
599 | } | |
600 | ||
1da177e4 LT |
601 | /* |
602 | * remove underline attribute from erase character | |
603 | * if black and white framebuffer. | |
604 | */ | |
b8c90945 | 605 | if (fb_get_color_depth(&info->var, &info->fix) == 1) |
1da177e4 | 606 | erase &= ~0x400; |
9c44e5f6 | 607 | logo_height = fb_prepare_logo(info, ops->rotate); |
1da177e4 LT |
608 | logo_lines = (logo_height + vc->vc_font.height - 1) / |
609 | vc->vc_font.height; | |
610 | q = (unsigned short *) (vc->vc_origin + | |
611 | vc->vc_size_row * rows); | |
612 | step = logo_lines * cols; | |
613 | for (r = q - logo_lines * cols; r < q; r++) | |
614 | if (scr_readw(r) != vc->vc_video_erase_char) | |
615 | break; | |
616 | if (r != q && new_rows >= rows + logo_lines) { | |
617 | save = kmalloc(logo_lines * new_cols * 2, GFP_KERNEL); | |
618 | if (save) { | |
619 | int i = cols < new_cols ? cols : new_cols; | |
620 | scr_memsetw(save, erase, logo_lines * new_cols * 2); | |
621 | r = q - step; | |
622 | for (cnt = 0; cnt < logo_lines; cnt++, r += i) | |
623 | scr_memcpyw(save + cnt * new_cols, r, 2 * i); | |
624 | r = q; | |
625 | } | |
626 | } | |
627 | if (r == q) { | |
628 | /* We can scroll screen down */ | |
629 | r = q - step - cols; | |
630 | for (cnt = rows - logo_lines; cnt > 0; cnt--) { | |
631 | scr_memcpyw(r + step, r, vc->vc_size_row); | |
632 | r -= cols; | |
633 | } | |
634 | if (!save) { | |
250038f5 GU |
635 | int lines; |
636 | if (vc->vc_y + logo_lines >= rows) | |
637 | lines = rows - vc->vc_y - 1; | |
638 | else | |
639 | lines = logo_lines; | |
640 | vc->vc_y += lines; | |
641 | vc->vc_pos += lines * vc->vc_size_row; | |
1da177e4 LT |
642 | } |
643 | } | |
644 | scr_memsetw((unsigned short *) vc->vc_origin, | |
645 | erase, | |
646 | vc->vc_size_row * logo_lines); | |
647 | ||
648 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { | |
649 | fbcon_clear_margins(vc, 0); | |
650 | update_screen(vc); | |
651 | } | |
652 | ||
653 | if (save) { | |
654 | q = (unsigned short *) (vc->vc_origin + | |
655 | vc->vc_size_row * | |
656 | rows); | |
657 | scr_memcpyw(q, save, logo_lines * new_cols * 2); | |
658 | vc->vc_y += logo_lines; | |
659 | vc->vc_pos += logo_lines * vc->vc_size_row; | |
660 | kfree(save); | |
661 | } | |
662 | ||
663 | if (logo_lines > vc->vc_bottom) { | |
664 | logo_shown = FBCON_LOGO_CANSHOW; | |
665 | printk(KERN_INFO | |
666 | "fbcon_init: disable boot-logo (boot-logo bigger than screen).\n"); | |
667 | } else if (logo_shown != FBCON_LOGO_DONTSHOW) { | |
668 | logo_shown = FBCON_LOGO_DRAW; | |
669 | vc->vc_top = logo_lines; | |
670 | } | |
671 | } | |
70802c60 | 672 | #endif /* MODULE */ |
1da177e4 LT |
673 | |
674 | #ifdef CONFIG_FB_TILEBLITTING | |
b73deed3 | 675 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
676 | { |
677 | struct fbcon_ops *ops = info->fbcon_par; | |
678 | ||
b73deed3 | 679 | ops->p = &fb_display[vc->vc_num]; |
ab767201 | 680 | |
1da177e4 | 681 | if ((info->flags & FBINFO_MISC_TILEBLITTING)) |
b73deed3 | 682 | fbcon_set_tileops(vc, info); |
e4fc2761 | 683 | else { |
b73deed3 | 684 | fbcon_set_rotation(info); |
1da177e4 | 685 | fbcon_set_bitops(ops); |
e4fc2761 | 686 | } |
1da177e4 | 687 | } |
38b4982c AD |
688 | |
689 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
690 | { | |
691 | int err = 0; | |
692 | ||
693 | if (info->flags & FBINFO_MISC_TILEBLITTING && | |
694 | info->tileops->fb_get_tilemax(info) < charcount) | |
695 | err = 1; | |
696 | ||
697 | return err; | |
698 | } | |
1da177e4 | 699 | #else |
b73deed3 | 700 | static void set_blitting_type(struct vc_data *vc, struct fb_info *info) |
1da177e4 LT |
701 | { |
702 | struct fbcon_ops *ops = info->fbcon_par; | |
703 | ||
704 | info->flags &= ~FBINFO_MISC_TILEBLITTING; | |
b73deed3 AD |
705 | ops->p = &fb_display[vc->vc_num]; |
706 | fbcon_set_rotation(info); | |
1da177e4 LT |
707 | fbcon_set_bitops(ops); |
708 | } | |
38b4982c AD |
709 | |
710 | static int fbcon_invalid_charcount(struct fb_info *info, unsigned charcount) | |
711 | { | |
712 | return 0; | |
713 | } | |
714 | ||
1da177e4 LT |
715 | #endif /* CONFIG_MISC_TILEBLITTING */ |
716 | ||
717 | ||
718 | static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, | |
719 | int unit, int oldidx) | |
720 | { | |
721 | struct fbcon_ops *ops = NULL; | |
722 | int err = 0; | |
723 | ||
724 | if (!try_module_get(info->fbops->owner)) | |
725 | err = -ENODEV; | |
726 | ||
727 | if (!err && info->fbops->fb_open && | |
728 | info->fbops->fb_open(info, 0)) | |
729 | err = -ENODEV; | |
730 | ||
731 | if (!err) { | |
a39bc34e | 732 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
733 | if (!ops) |
734 | err = -ENOMEM; | |
735 | } | |
736 | ||
737 | if (!err) { | |
1da177e4 | 738 | info->fbcon_par = ops; |
b73deed3 | 739 | set_blitting_type(vc, info); |
1da177e4 LT |
740 | } |
741 | ||
742 | if (err) { | |
743 | con2fb_map[unit] = oldidx; | |
744 | module_put(info->fbops->owner); | |
745 | } | |
746 | ||
747 | return err; | |
748 | } | |
749 | ||
750 | static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo, | |
751 | struct fb_info *newinfo, int unit, | |
752 | int oldidx, int found) | |
753 | { | |
754 | struct fbcon_ops *ops = oldinfo->fbcon_par; | |
755 | int err = 0; | |
756 | ||
757 | if (oldinfo->fbops->fb_release && | |
758 | oldinfo->fbops->fb_release(oldinfo, 0)) { | |
759 | con2fb_map[unit] = oldidx; | |
760 | if (!found && newinfo->fbops->fb_release) | |
761 | newinfo->fbops->fb_release(newinfo, 0); | |
762 | if (!found) | |
763 | module_put(newinfo->fbops->owner); | |
764 | err = -ENODEV; | |
765 | } | |
766 | ||
767 | if (!err) { | |
88fb2c6e | 768 | fbcon_del_cursor_timer(oldinfo); |
1da177e4 LT |
769 | kfree(ops->cursor_state.mask); |
770 | kfree(ops->cursor_data); | |
e4fc2761 | 771 | kfree(ops->fontbuffer); |
1da177e4 LT |
772 | kfree(oldinfo->fbcon_par); |
773 | oldinfo->fbcon_par = NULL; | |
774 | module_put(oldinfo->fbops->owner); | |
dd0314f7 AD |
775 | /* |
776 | If oldinfo and newinfo are driving the same hardware, | |
777 | the fb_release() method of oldinfo may attempt to | |
778 | restore the hardware state. This will leave the | |
779 | newinfo in an undefined state. Thus, a call to | |
780 | fb_set_par() may be needed for the newinfo. | |
781 | */ | |
782 | if (newinfo->fbops->fb_set_par) | |
783 | newinfo->fbops->fb_set_par(newinfo); | |
1da177e4 LT |
784 | } |
785 | ||
786 | return err; | |
787 | } | |
788 | ||
1da177e4 LT |
789 | static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, |
790 | int unit, int show_logo) | |
791 | { | |
792 | struct fbcon_ops *ops = info->fbcon_par; | |
793 | ||
794 | ops->currcon = fg_console; | |
795 | ||
796 | if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) | |
797 | info->fbops->fb_set_par(info); | |
798 | ||
799 | ops->flags |= FBCON_FLAGS_INIT; | |
800 | ops->graphics = 0; | |
801 | ||
802 | if (vc) | |
803 | fbcon_set_disp(info, &info->var, vc); | |
804 | else | |
805 | fbcon_preset_disp(info, &info->var, unit); | |
806 | ||
807 | if (show_logo) { | |
808 | struct vc_data *fg_vc = vc_cons[fg_console].d; | |
809 | struct fb_info *fg_info = | |
810 | registered_fb[con2fb_map[fg_console]]; | |
811 | ||
812 | fbcon_prepare_logo(fg_vc, fg_info, fg_vc->vc_cols, | |
813 | fg_vc->vc_rows, fg_vc->vc_cols, | |
814 | fg_vc->vc_rows); | |
815 | } | |
816 | ||
817 | update_screen(vc_cons[fg_console].d); | |
818 | } | |
819 | ||
820 | /** | |
821 | * set_con2fb_map - map console to frame buffer device | |
822 | * @unit: virtual console number to map | |
823 | * @newidx: frame buffer index to map virtual console to | |
824 | * @user: user request | |
825 | * | |
826 | * Maps a virtual console @unit to a frame buffer device | |
827 | * @newidx. | |
828 | */ | |
829 | static int set_con2fb_map(int unit, int newidx, int user) | |
830 | { | |
831 | struct vc_data *vc = vc_cons[unit].d; | |
832 | int oldidx = con2fb_map[unit]; | |
833 | struct fb_info *info = registered_fb[newidx]; | |
834 | struct fb_info *oldinfo = NULL; | |
835 | int found, err = 0; | |
836 | ||
837 | if (oldidx == newidx) | |
838 | return 0; | |
839 | ||
e614b18d AD |
840 | if (!info || fbcon_has_exited) |
841 | return -EINVAL; | |
1da177e4 LT |
842 | |
843 | if (!err && !search_for_mapped_con()) { | |
844 | info_idx = newidx; | |
845 | return fbcon_takeover(0); | |
846 | } | |
847 | ||
848 | if (oldidx != -1) | |
849 | oldinfo = registered_fb[oldidx]; | |
850 | ||
851 | found = search_fb_in_map(newidx); | |
852 | ||
853 | acquire_console_sem(); | |
854 | con2fb_map[unit] = newidx; | |
855 | if (!err && !found) | |
856 | err = con2fb_acquire_newinfo(vc, info, unit, oldidx); | |
857 | ||
858 | ||
859 | /* | |
860 | * If old fb is not mapped to any of the consoles, | |
861 | * fbcon should release it. | |
862 | */ | |
863 | if (!err && oldinfo && !search_fb_in_map(oldidx)) | |
864 | err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx, | |
865 | found); | |
866 | ||
867 | if (!err) { | |
868 | int show_logo = (fg_console == 0 && !user && | |
869 | logo_shown != FBCON_LOGO_DONTSHOW); | |
870 | ||
871 | if (!found) | |
88fb2c6e | 872 | fbcon_add_cursor_timer(info); |
1da177e4 LT |
873 | con2fb_map_boot[unit] = newidx; |
874 | con2fb_init_display(vc, info, unit, show_logo); | |
875 | } | |
876 | ||
e614b18d AD |
877 | if (!search_fb_in_map(info_idx)) |
878 | info_idx = newidx; | |
879 | ||
1da177e4 LT |
880 | release_console_sem(); |
881 | return err; | |
882 | } | |
883 | ||
884 | /* | |
885 | * Low Level Operations | |
886 | */ | |
887 | /* NOTE: fbcon cannot be __init: it may be called from take_over_console later */ | |
888 | static int var_to_display(struct display *disp, | |
889 | struct fb_var_screeninfo *var, | |
890 | struct fb_info *info) | |
891 | { | |
892 | disp->xres_virtual = var->xres_virtual; | |
893 | disp->yres_virtual = var->yres_virtual; | |
894 | disp->bits_per_pixel = var->bits_per_pixel; | |
895 | disp->grayscale = var->grayscale; | |
896 | disp->nonstd = var->nonstd; | |
897 | disp->accel_flags = var->accel_flags; | |
898 | disp->height = var->height; | |
899 | disp->width = var->width; | |
900 | disp->red = var->red; | |
901 | disp->green = var->green; | |
902 | disp->blue = var->blue; | |
903 | disp->transp = var->transp; | |
904 | disp->rotate = var->rotate; | |
905 | disp->mode = fb_match_mode(var, &info->modelist); | |
906 | if (disp->mode == NULL) | |
907 | /* This should not happen */ | |
908 | return -EINVAL; | |
909 | return 0; | |
910 | } | |
911 | ||
912 | static void display_to_var(struct fb_var_screeninfo *var, | |
913 | struct display *disp) | |
914 | { | |
915 | fb_videomode_to_var(var, disp->mode); | |
916 | var->xres_virtual = disp->xres_virtual; | |
917 | var->yres_virtual = disp->yres_virtual; | |
918 | var->bits_per_pixel = disp->bits_per_pixel; | |
919 | var->grayscale = disp->grayscale; | |
920 | var->nonstd = disp->nonstd; | |
921 | var->accel_flags = disp->accel_flags; | |
922 | var->height = disp->height; | |
923 | var->width = disp->width; | |
924 | var->red = disp->red; | |
925 | var->green = disp->green; | |
926 | var->blue = disp->blue; | |
927 | var->transp = disp->transp; | |
928 | var->rotate = disp->rotate; | |
929 | } | |
930 | ||
931 | static const char *fbcon_startup(void) | |
932 | { | |
933 | const char *display_desc = "frame buffer device"; | |
934 | struct display *p = &fb_display[fg_console]; | |
935 | struct vc_data *vc = vc_cons[fg_console].d; | |
2f4516db | 936 | const struct font_desc *font = NULL; |
1da177e4 LT |
937 | struct module *owner; |
938 | struct fb_info *info = NULL; | |
939 | struct fbcon_ops *ops; | |
940 | int rows, cols; | |
941 | int irqres; | |
942 | ||
943 | irqres = 1; | |
944 | /* | |
945 | * If num_registered_fb is zero, this is a call for the dummy part. | |
946 | * The frame buffer devices weren't initialized yet. | |
947 | */ | |
948 | if (!num_registered_fb || info_idx == -1) | |
949 | return display_desc; | |
950 | /* | |
951 | * Instead of blindly using registered_fb[0], we use info_idx, set by | |
952 | * fb_console_init(); | |
953 | */ | |
954 | info = registered_fb[info_idx]; | |
955 | if (!info) | |
956 | return NULL; | |
957 | ||
958 | owner = info->fbops->owner; | |
959 | if (!try_module_get(owner)) | |
960 | return NULL; | |
961 | if (info->fbops->fb_open && info->fbops->fb_open(info, 0)) { | |
962 | module_put(owner); | |
963 | return NULL; | |
964 | } | |
965 | ||
a39bc34e | 966 | ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL); |
1da177e4 LT |
967 | if (!ops) { |
968 | module_put(owner); | |
969 | return NULL; | |
970 | } | |
971 | ||
1da177e4 LT |
972 | ops->currcon = -1; |
973 | ops->graphics = 1; | |
e4fc2761 | 974 | ops->cur_rotate = -1; |
1da177e4 | 975 | info->fbcon_par = ops; |
e4fc2761 | 976 | p->con_rotate = rotate; |
b73deed3 | 977 | set_blitting_type(vc, info); |
1da177e4 LT |
978 | |
979 | if (info->fix.type != FB_TYPE_TEXT) { | |
980 | if (fbcon_softback_size) { | |
981 | if (!softback_buf) { | |
982 | softback_buf = | |
983 | (unsigned long) | |
984 | kmalloc(fbcon_softback_size, | |
985 | GFP_KERNEL); | |
986 | if (!softback_buf) { | |
987 | fbcon_softback_size = 0; | |
988 | softback_top = 0; | |
989 | } | |
990 | } | |
991 | } else { | |
992 | if (softback_buf) { | |
993 | kfree((void *) softback_buf); | |
994 | softback_buf = 0; | |
995 | softback_top = 0; | |
996 | } | |
997 | } | |
998 | if (softback_buf) | |
999 | softback_in = softback_top = softback_curr = | |
1000 | softback_buf; | |
1001 | softback_lines = 0; | |
1002 | } | |
1003 | ||
1004 | /* Setup default font */ | |
1005 | if (!p->fontdata) { | |
1006 | if (!fontname[0] || !(font = find_font(fontname))) | |
1007 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1008 | info->var.yres, |
1009 | info->pixmap.blit_x, | |
1010 | info->pixmap.blit_y); | |
1da177e4 LT |
1011 | vc->vc_font.width = font->width; |
1012 | vc->vc_font.height = font->height; | |
2f4516db | 1013 | vc->vc_font.data = (void *)(p->fontdata = font->data); |
1da177e4 LT |
1014 | vc->vc_font.charcount = 256; /* FIXME Need to support more fonts */ |
1015 | } | |
1016 | ||
e4fc2761 AD |
1017 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1018 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1019 | cols /= vc->vc_font.width; | |
1020 | rows /= vc->vc_font.height; | |
1da177e4 LT |
1021 | vc_resize(vc, cols, rows); |
1022 | ||
1023 | DPRINTK("mode: %s\n", info->fix.id); | |
1024 | DPRINTK("visual: %d\n", info->fix.visual); | |
1025 | DPRINTK("res: %dx%d-%d\n", info->var.xres, | |
1026 | info->var.yres, | |
1027 | info->var.bits_per_pixel); | |
1028 | ||
1029 | #ifdef CONFIG_ATARI | |
1030 | if (MACH_IS_ATARI) { | |
1031 | cursor_blink_rate = ATARI_CURSOR_BLINK_RATE; | |
1032 | irqres = | |
1033 | request_irq(IRQ_AUTO_4, fb_vbl_handler, | |
1034 | IRQ_TYPE_PRIO, "framebuffer vbl", | |
1035 | info); | |
1036 | } | |
1037 | #endif /* CONFIG_ATARI */ | |
1038 | ||
1039 | #ifdef CONFIG_MAC | |
1040 | /* | |
1041 | * On a Macintoy, the VBL interrupt may or may not be active. | |
1042 | * As interrupt based cursor is more reliable and race free, we | |
1043 | * probe for VBL interrupts. | |
1044 | */ | |
1045 | if (MACH_IS_MAC) { | |
1046 | int ct = 0; | |
1047 | /* | |
1048 | * Probe for VBL: set temp. handler ... | |
1049 | */ | |
1050 | irqres = request_irq(IRQ_MAC_VBL, fb_vbl_detect, 0, | |
1051 | "framebuffer vbl", info); | |
1052 | vbl_detected = 0; | |
1053 | ||
1054 | /* | |
1055 | * ... and spin for 20 ms ... | |
1056 | */ | |
1057 | while (!vbl_detected && ++ct < 1000) | |
1058 | udelay(20); | |
1059 | ||
1060 | if (ct == 1000) | |
1061 | printk | |
1062 | ("fbcon_startup: No VBL detected, using timer based cursor.\n"); | |
1063 | ||
1064 | free_irq(IRQ_MAC_VBL, fb_vbl_detect); | |
1065 | ||
1066 | if (vbl_detected) { | |
1067 | /* | |
1068 | * interrupt based cursor ok | |
1069 | */ | |
1070 | cursor_blink_rate = MAC_CURSOR_BLINK_RATE; | |
1071 | irqres = | |
1072 | request_irq(IRQ_MAC_VBL, fb_vbl_handler, 0, | |
1073 | "framebuffer vbl", info); | |
1074 | } else { | |
1075 | /* | |
1076 | * VBL not detected: fall through, use timer based cursor | |
1077 | */ | |
1078 | irqres = 1; | |
1079 | } | |
1080 | } | |
1081 | #endif /* CONFIG_MAC */ | |
1082 | ||
88fb2c6e | 1083 | fbcon_add_cursor_timer(info); |
e614b18d | 1084 | fbcon_has_exited = 0; |
1da177e4 LT |
1085 | return display_desc; |
1086 | } | |
1087 | ||
1088 | static void fbcon_init(struct vc_data *vc, int init) | |
1089 | { | |
1090 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1091 | struct fbcon_ops *ops; | |
1092 | struct vc_data **default_mode = vc->vc_display_fg; | |
1093 | struct vc_data *svc = *default_mode; | |
1094 | struct display *t, *p = &fb_display[vc->vc_num]; | |
1095 | int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; | |
306958e8 | 1096 | int cap; |
1da177e4 LT |
1097 | |
1098 | if (info_idx == -1 || info == NULL) | |
1099 | return; | |
306958e8 AB |
1100 | |
1101 | cap = info->flags; | |
1102 | ||
1da177e4 LT |
1103 | if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || |
1104 | (info->fix.type == FB_TYPE_TEXT)) | |
1105 | logo = 0; | |
1106 | ||
1da177e4 LT |
1107 | if (var_to_display(p, &info->var, info)) |
1108 | return; | |
1109 | ||
1110 | /* If we are not the first console on this | |
1111 | fb, copy the font from that console */ | |
e614b18d AD |
1112 | t = &fb_display[fg_console]; |
1113 | if (!p->fontdata) { | |
1114 | if (t->fontdata) { | |
1115 | struct vc_data *fvc = vc_cons[fg_console].d; | |
1116 | ||
1117 | vc->vc_font.data = (void *)(p->fontdata = | |
1118 | fvc->vc_font.data); | |
1119 | vc->vc_font.width = fvc->vc_font.width; | |
1120 | vc->vc_font.height = fvc->vc_font.height; | |
1121 | p->userfont = t->userfont; | |
1122 | ||
1123 | if (p->userfont) | |
1124 | REFCOUNT(p->fontdata)++; | |
1125 | } else { | |
1126 | const struct font_desc *font = NULL; | |
1127 | ||
1128 | if (!fontname[0] || !(font = find_font(fontname))) | |
1129 | font = get_default_font(info->var.xres, | |
2d2699d9 AD |
1130 | info->var.yres, |
1131 | info->pixmap.blit_x, | |
1132 | info->pixmap.blit_y); | |
e614b18d AD |
1133 | vc->vc_font.width = font->width; |
1134 | vc->vc_font.height = font->height; | |
1135 | vc->vc_font.data = (void *)(p->fontdata = font->data); | |
1136 | vc->vc_font.charcount = 256; /* FIXME Need to | |
1137 | support more fonts */ | |
1138 | } | |
1da177e4 | 1139 | } |
e614b18d | 1140 | |
1da177e4 LT |
1141 | if (p->userfont) |
1142 | charcnt = FNTCHARCNT(p->fontdata); | |
e614b18d | 1143 | |
b8c90945 | 1144 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1145 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1146 | if (charcnt == 256) { | |
1147 | vc->vc_hi_font_mask = 0; | |
1148 | } else { | |
1149 | vc->vc_hi_font_mask = 0x100; | |
1150 | if (vc->vc_can_do_color) | |
1151 | vc->vc_complement_mask <<= 1; | |
1152 | } | |
1153 | ||
1154 | if (!*svc->vc_uni_pagedir_loc) | |
1155 | con_set_default_unimap(svc); | |
1156 | if (!*vc->vc_uni_pagedir_loc) | |
1157 | con_copy_unimap(vc, svc); | |
1158 | ||
e4fc2761 AD |
1159 | ops = info->fbcon_par; |
1160 | p->con_rotate = rotate; | |
b73deed3 | 1161 | set_blitting_type(vc, info); |
e4fc2761 | 1162 | |
1da177e4 LT |
1163 | cols = vc->vc_cols; |
1164 | rows = vc->vc_rows; | |
e4fc2761 AD |
1165 | new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1166 | new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1167 | new_cols /= vc->vc_font.width; | |
1168 | new_rows /= vc->vc_font.height; | |
1da177e4 LT |
1169 | vc_resize(vc, new_cols, new_rows); |
1170 | ||
1da177e4 LT |
1171 | /* |
1172 | * We must always set the mode. The mode of the previous console | |
1173 | * driver could be in the same resolution but we are using different | |
1174 | * hardware so we have to initialize the hardware. | |
1175 | * | |
1176 | * We need to do it in fbcon_init() to prevent screen corruption. | |
1177 | */ | |
d354d9af | 1178 | if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) { |
1da177e4 LT |
1179 | if (info->fbops->fb_set_par && |
1180 | !(ops->flags & FBCON_FLAGS_INIT)) | |
1181 | info->fbops->fb_set_par(info); | |
1182 | ops->flags |= FBCON_FLAGS_INIT; | |
1183 | } | |
1184 | ||
1185 | ops->graphics = 0; | |
1186 | ||
1187 | if ((cap & FBINFO_HWACCEL_COPYAREA) && | |
1188 | !(cap & FBINFO_HWACCEL_DISABLED)) | |
1189 | p->scrollmode = SCROLL_MOVE; | |
1190 | else /* default to something safe */ | |
1191 | p->scrollmode = SCROLL_REDRAW; | |
1192 | ||
1193 | /* | |
1194 | * ++guenther: console.c:vc_allocate() relies on initializing | |
1195 | * vc_{cols,rows}, but we must not set those if we are only | |
1196 | * resizing the console. | |
1197 | */ | |
1198 | if (!init) { | |
1199 | vc->vc_cols = new_cols; | |
1200 | vc->vc_rows = new_rows; | |
1201 | } | |
1202 | ||
1203 | if (logo) | |
1204 | fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); | |
1205 | ||
4d9c5b6e AD |
1206 | if (vc == svc && softback_buf) |
1207 | fbcon_update_softback(vc); | |
e4fc2761 | 1208 | |
b73deed3 | 1209 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 1210 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 1211 | set_blitting_type(vc, info); |
e4fc2761 AD |
1212 | } |
1213 | ||
1a37d5f5 | 1214 | ops->p = &fb_display[fg_console]; |
1da177e4 LT |
1215 | } |
1216 | ||
e614b18d AD |
1217 | static void fbcon_free_font(struct display *p) |
1218 | { | |
1219 | if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0)) | |
1220 | kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int)); | |
1221 | p->fontdata = NULL; | |
1222 | p->userfont = 0; | |
1223 | } | |
1224 | ||
1da177e4 LT |
1225 | static void fbcon_deinit(struct vc_data *vc) |
1226 | { | |
1227 | struct display *p = &fb_display[vc->vc_num]; | |
e614b18d AD |
1228 | struct fb_info *info; |
1229 | struct fbcon_ops *ops; | |
1230 | int idx; | |
1da177e4 | 1231 | |
1da177e4 | 1232 | fbcon_free_font(p); |
e614b18d AD |
1233 | idx = con2fb_map[vc->vc_num]; |
1234 | ||
1235 | if (idx == -1) | |
1236 | goto finished; | |
1237 | ||
1238 | info = registered_fb[idx]; | |
1239 | ||
1240 | if (!info) | |
1241 | goto finished; | |
1242 | ||
1243 | ops = info->fbcon_par; | |
1244 | ||
1245 | if (!ops) | |
1246 | goto finished; | |
1247 | ||
1248 | if (CON_IS_VISIBLE(vc)) | |
1249 | fbcon_del_cursor_timer(info); | |
1250 | ||
1251 | ops->flags &= ~FBCON_FLAGS_INIT; | |
1252 | finished: | |
1253 | ||
1254 | if (!con_is_bound(&fb_con)) | |
1255 | fbcon_exit(); | |
1256 | ||
1257 | return; | |
1da177e4 LT |
1258 | } |
1259 | ||
1260 | /* ====================================================================== */ | |
1261 | ||
1262 | /* fbcon_XXX routines - interface used by the world | |
1263 | * | |
1264 | * This system is now divided into two levels because of complications | |
1265 | * caused by hardware scrolling. Top level functions: | |
1266 | * | |
1267 | * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins() | |
1268 | * | |
1269 | * handles y values in range [0, scr_height-1] that correspond to real | |
1270 | * screen positions. y_wrap shift means that first line of bitmap may be | |
1271 | * anywhere on this display. These functions convert lineoffsets to | |
1272 | * bitmap offsets and deal with the wrap-around case by splitting blits. | |
1273 | * | |
1274 | * fbcon_bmove_physical_8() -- These functions fast implementations | |
1275 | * fbcon_clear_physical_8() -- of original fbcon_XXX fns. | |
1276 | * fbcon_putc_physical_8() -- (font width != 8) may be added later | |
1277 | * | |
1278 | * WARNING: | |
1279 | * | |
1280 | * At the moment fbcon_putc() cannot blit across vertical wrap boundary | |
1281 | * Implies should only really hardware scroll in rows. Only reason for | |
1282 | * restriction is simplicity & efficiency at the moment. | |
1283 | */ | |
1284 | ||
1da177e4 LT |
1285 | static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, |
1286 | int width) | |
1287 | { | |
1288 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1289 | struct fbcon_ops *ops = info->fbcon_par; | |
1290 | ||
1291 | struct display *p = &fb_display[vc->vc_num]; | |
1292 | u_int y_break; | |
1293 | ||
1294 | if (fbcon_is_inactive(vc, info)) | |
1295 | return; | |
1296 | ||
1297 | if (!height || !width) | |
1298 | return; | |
1299 | ||
1300 | /* Split blits that cross physical y_wrap boundary */ | |
1301 | ||
1302 | y_break = p->vrows - p->yscroll; | |
1303 | if (sy < y_break && sy + height - 1 >= y_break) { | |
1304 | u_int b = y_break - sy; | |
1305 | ops->clear(vc, info, real_y(p, sy), sx, b, width); | |
1306 | ops->clear(vc, info, real_y(p, sy + b), sx, height - b, | |
1307 | width); | |
1308 | } else | |
1309 | ops->clear(vc, info, real_y(p, sy), sx, height, width); | |
1310 | } | |
1311 | ||
1312 | static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, | |
1313 | int count, int ypos, int xpos) | |
1314 | { | |
1315 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1316 | struct display *p = &fb_display[vc->vc_num]; | |
1317 | struct fbcon_ops *ops = info->fbcon_par; | |
1318 | ||
1319 | if (!fbcon_is_inactive(vc, info)) | |
1320 | ops->putcs(vc, info, s, count, real_y(p, ypos), xpos, | |
1321 | get_color(vc, info, scr_readw(s), 1), | |
1322 | get_color(vc, info, scr_readw(s), 0)); | |
1323 | } | |
1324 | ||
1325 | static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos) | |
1326 | { | |
1327 | unsigned short chr; | |
1328 | ||
1329 | scr_writew(c, &chr); | |
1330 | fbcon_putcs(vc, &chr, 1, ypos, xpos); | |
1331 | } | |
1332 | ||
1333 | static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) | |
1334 | { | |
1335 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1336 | struct fbcon_ops *ops = info->fbcon_par; | |
1337 | ||
1338 | if (!fbcon_is_inactive(vc, info)) | |
1339 | ops->clear_margins(vc, info, bottom_only); | |
1340 | } | |
1341 | ||
1342 | static void fbcon_cursor(struct vc_data *vc, int mode) | |
1343 | { | |
1344 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1345 | struct fbcon_ops *ops = info->fbcon_par; | |
1da177e4 LT |
1346 | int y; |
1347 | int c = scr_readw((u16 *) vc->vc_pos); | |
1348 | ||
d1e23066 | 1349 | if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1) |
1da177e4 LT |
1350 | return; |
1351 | ||
1352 | ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; | |
1353 | if (mode & CM_SOFTBACK) { | |
1354 | mode &= ~CM_SOFTBACK; | |
1355 | y = softback_lines; | |
1356 | } else { | |
1357 | if (softback_lines) | |
1358 | fbcon_set_origin(vc); | |
1359 | y = 0; | |
1360 | } | |
1361 | ||
b73deed3 | 1362 | ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1), |
1da177e4 LT |
1363 | get_color(vc, info, c, 0)); |
1364 | vbl_cursor_cnt = CURSOR_DRAW_DELAY; | |
1365 | } | |
1366 | ||
1367 | static int scrollback_phys_max = 0; | |
1368 | static int scrollback_max = 0; | |
1369 | static int scrollback_current = 0; | |
1370 | ||
1da177e4 LT |
1371 | /* |
1372 | * If no vc is existent yet, just set struct display | |
1373 | */ | |
1374 | static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
1375 | int unit) | |
1376 | { | |
1377 | struct display *p = &fb_display[unit]; | |
1378 | struct display *t = &fb_display[fg_console]; | |
1379 | ||
1da177e4 LT |
1380 | if (var_to_display(p, var, info)) |
1381 | return; | |
1382 | ||
1383 | p->fontdata = t->fontdata; | |
1384 | p->userfont = t->userfont; | |
1385 | if (p->userfont) | |
1386 | REFCOUNT(p->fontdata)++; | |
1387 | } | |
1388 | ||
1389 | static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, | |
1390 | struct vc_data *vc) | |
1391 | { | |
1392 | struct display *p = &fb_display[vc->vc_num], *t; | |
1393 | struct vc_data **default_mode = vc->vc_display_fg; | |
1394 | struct vc_data *svc = *default_mode; | |
e4fc2761 | 1395 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1396 | int rows, cols, charcnt = 256; |
1397 | ||
1da177e4 LT |
1398 | if (var_to_display(p, var, info)) |
1399 | return; | |
1400 | t = &fb_display[svc->vc_num]; | |
1401 | if (!vc->vc_font.data) { | |
2f4516db | 1402 | vc->vc_font.data = (void *)(p->fontdata = t->fontdata); |
1da177e4 LT |
1403 | vc->vc_font.width = (*default_mode)->vc_font.width; |
1404 | vc->vc_font.height = (*default_mode)->vc_font.height; | |
1405 | p->userfont = t->userfont; | |
1406 | if (p->userfont) | |
1407 | REFCOUNT(p->fontdata)++; | |
1408 | } | |
1409 | if (p->userfont) | |
1410 | charcnt = FNTCHARCNT(p->fontdata); | |
1411 | ||
b8c90945 AD |
1412 | var->activate = FB_ACTIVATE_NOW; |
1413 | info->var.activate = var->activate; | |
e4fc2761 AD |
1414 | var->yoffset = info->var.yoffset; |
1415 | var->xoffset = info->var.xoffset; | |
b8c90945 | 1416 | fb_set_var(info, var); |
e4fc2761 | 1417 | ops->var = info->var; |
b8c90945 | 1418 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 LT |
1419 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
1420 | if (charcnt == 256) { | |
1421 | vc->vc_hi_font_mask = 0; | |
1422 | } else { | |
1423 | vc->vc_hi_font_mask = 0x100; | |
1424 | if (vc->vc_can_do_color) | |
1425 | vc->vc_complement_mask <<= 1; | |
1426 | } | |
1427 | ||
1428 | if (!*svc->vc_uni_pagedir_loc) | |
1429 | con_set_default_unimap(svc); | |
1430 | if (!*vc->vc_uni_pagedir_loc) | |
1431 | con_copy_unimap(vc, svc); | |
1432 | ||
e4fc2761 AD |
1433 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
1434 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
1435 | cols /= vc->vc_font.width; | |
1436 | rows /= vc->vc_font.height; | |
1da177e4 | 1437 | vc_resize(vc, cols, rows); |
e4fc2761 | 1438 | |
1da177e4 LT |
1439 | if (CON_IS_VISIBLE(vc)) { |
1440 | update_screen(vc); | |
4d9c5b6e AD |
1441 | if (softback_buf) |
1442 | fbcon_update_softback(vc); | |
1da177e4 LT |
1443 | } |
1444 | } | |
1445 | ||
1446 | static __inline__ void ywrap_up(struct vc_data *vc, int count) | |
1447 | { | |
1448 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1449 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1450 | struct display *p = &fb_display[vc->vc_num]; |
1451 | ||
1452 | p->yscroll += count; | |
1453 | if (p->yscroll >= p->vrows) /* Deal with wrap */ | |
1454 | p->yscroll -= p->vrows; | |
e4fc2761 AD |
1455 | ops->var.xoffset = 0; |
1456 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1457 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1458 | ops->update_start(info); | |
1da177e4 LT |
1459 | scrollback_max += count; |
1460 | if (scrollback_max > scrollback_phys_max) | |
1461 | scrollback_max = scrollback_phys_max; | |
1462 | scrollback_current = 0; | |
1463 | } | |
1464 | ||
1465 | static __inline__ void ywrap_down(struct vc_data *vc, int count) | |
1466 | { | |
1467 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1468 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
1469 | struct display *p = &fb_display[vc->vc_num]; |
1470 | ||
1471 | p->yscroll -= count; | |
1472 | if (p->yscroll < 0) /* Deal with wrap */ | |
1473 | p->yscroll += p->vrows; | |
e4fc2761 AD |
1474 | ops->var.xoffset = 0; |
1475 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1476 | ops->var.vmode |= FB_VMODE_YWRAP; | |
1477 | ops->update_start(info); | |
1da177e4 LT |
1478 | scrollback_max -= count; |
1479 | if (scrollback_max < 0) | |
1480 | scrollback_max = 0; | |
1481 | scrollback_current = 0; | |
1482 | } | |
1483 | ||
1484 | static __inline__ void ypan_up(struct vc_data *vc, int count) | |
1485 | { | |
1486 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1487 | struct display *p = &fb_display[vc->vc_num]; | |
1488 | struct fbcon_ops *ops = info->fbcon_par; | |
1489 | ||
1490 | p->yscroll += count; | |
1491 | if (p->yscroll > p->vrows - vc->vc_rows) { | |
1492 | ops->bmove(vc, info, p->vrows - vc->vc_rows, | |
1493 | 0, 0, 0, vc->vc_rows, vc->vc_cols); | |
1494 | p->yscroll -= p->vrows - vc->vc_rows; | |
1495 | } | |
e4fc2761 AD |
1496 | |
1497 | ops->var.xoffset = 0; | |
1498 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1499 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1500 | ops->update_start(info); | |
1da177e4 LT |
1501 | fbcon_clear_margins(vc, 1); |
1502 | scrollback_max += count; | |
1503 | if (scrollback_max > scrollback_phys_max) | |
1504 | scrollback_max = scrollback_phys_max; | |
1505 | scrollback_current = 0; | |
1506 | } | |
1507 | ||
1508 | static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count) | |
1509 | { | |
1510 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1511 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1512 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1513 | |
1514 | p->yscroll += count; | |
a39bc34e | 1515 | |
1da177e4 LT |
1516 | if (p->yscroll > p->vrows - vc->vc_rows) { |
1517 | p->yscroll -= p->vrows - vc->vc_rows; | |
1da177e4 | 1518 | fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t); |
a39bc34e | 1519 | } |
e4fc2761 AD |
1520 | |
1521 | ops->var.xoffset = 0; | |
1522 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1523 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1524 | ops->update_start(info); | |
1da177e4 LT |
1525 | fbcon_clear_margins(vc, 1); |
1526 | scrollback_max += count; | |
1527 | if (scrollback_max > scrollback_phys_max) | |
1528 | scrollback_max = scrollback_phys_max; | |
1529 | scrollback_current = 0; | |
1530 | } | |
1531 | ||
1532 | static __inline__ void ypan_down(struct vc_data *vc, int count) | |
1533 | { | |
1534 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1535 | struct display *p = &fb_display[vc->vc_num]; | |
1536 | struct fbcon_ops *ops = info->fbcon_par; | |
1537 | ||
1538 | p->yscroll -= count; | |
1539 | if (p->yscroll < 0) { | |
1540 | ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows, | |
1541 | 0, vc->vc_rows, vc->vc_cols); | |
1542 | p->yscroll += p->vrows - vc->vc_rows; | |
1543 | } | |
e4fc2761 AD |
1544 | |
1545 | ops->var.xoffset = 0; | |
1546 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1547 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1548 | ops->update_start(info); | |
1da177e4 LT |
1549 | fbcon_clear_margins(vc, 1); |
1550 | scrollback_max -= count; | |
1551 | if (scrollback_max < 0) | |
1552 | scrollback_max = 0; | |
1553 | scrollback_current = 0; | |
1554 | } | |
1555 | ||
1556 | static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) | |
1557 | { | |
1558 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 1559 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 | 1560 | struct display *p = &fb_display[vc->vc_num]; |
1da177e4 LT |
1561 | |
1562 | p->yscroll -= count; | |
a39bc34e | 1563 | |
1da177e4 LT |
1564 | if (p->yscroll < 0) { |
1565 | p->yscroll += p->vrows - vc->vc_rows; | |
1da177e4 | 1566 | fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count); |
a39bc34e | 1567 | } |
e4fc2761 AD |
1568 | |
1569 | ops->var.xoffset = 0; | |
1570 | ops->var.yoffset = p->yscroll * vc->vc_font.height; | |
1571 | ops->var.vmode &= ~FB_VMODE_YWRAP; | |
1572 | ops->update_start(info); | |
1da177e4 LT |
1573 | fbcon_clear_margins(vc, 1); |
1574 | scrollback_max -= count; | |
1575 | if (scrollback_max < 0) | |
1576 | scrollback_max = 0; | |
1577 | scrollback_current = 0; | |
1578 | } | |
1579 | ||
1580 | static void fbcon_redraw_softback(struct vc_data *vc, struct display *p, | |
1581 | long delta) | |
1582 | { | |
1583 | int count = vc->vc_rows; | |
1584 | unsigned short *d, *s; | |
1585 | unsigned long n; | |
1586 | int line = 0; | |
1587 | ||
1588 | d = (u16 *) softback_curr; | |
1589 | if (d == (u16 *) softback_in) | |
1590 | d = (u16 *) vc->vc_origin; | |
1591 | n = softback_curr + delta * vc->vc_size_row; | |
1592 | softback_lines -= delta; | |
1593 | if (delta < 0) { | |
1594 | if (softback_curr < softback_top && n < softback_buf) { | |
1595 | n += softback_end - softback_buf; | |
1596 | if (n < softback_top) { | |
1597 | softback_lines -= | |
1598 | (softback_top - n) / vc->vc_size_row; | |
1599 | n = softback_top; | |
1600 | } | |
1601 | } else if (softback_curr >= softback_top | |
1602 | && n < softback_top) { | |
1603 | softback_lines -= | |
1604 | (softback_top - n) / vc->vc_size_row; | |
1605 | n = softback_top; | |
1606 | } | |
1607 | } else { | |
1608 | if (softback_curr > softback_in && n >= softback_end) { | |
1609 | n += softback_buf - softback_end; | |
1610 | if (n > softback_in) { | |
1611 | n = softback_in; | |
1612 | softback_lines = 0; | |
1613 | } | |
1614 | } else if (softback_curr <= softback_in && n > softback_in) { | |
1615 | n = softback_in; | |
1616 | softback_lines = 0; | |
1617 | } | |
1618 | } | |
1619 | if (n == softback_curr) | |
1620 | return; | |
1621 | softback_curr = n; | |
1622 | s = (u16 *) softback_curr; | |
1623 | if (s == (u16 *) softback_in) | |
1624 | s = (u16 *) vc->vc_origin; | |
1625 | while (count--) { | |
1626 | unsigned short *start; | |
1627 | unsigned short *le; | |
1628 | unsigned short c; | |
1629 | int x = 0; | |
1630 | unsigned short attr = 1; | |
1631 | ||
1632 | start = s; | |
1633 | le = advance_row(s, 1); | |
1634 | do { | |
1635 | c = scr_readw(s); | |
1636 | if (attr != (c & 0xff00)) { | |
1637 | attr = c & 0xff00; | |
1638 | if (s > start) { | |
1639 | fbcon_putcs(vc, start, s - start, | |
1640 | line, x); | |
1641 | x += s - start; | |
1642 | start = s; | |
1643 | } | |
1644 | } | |
1645 | if (c == scr_readw(d)) { | |
1646 | if (s > start) { | |
1647 | fbcon_putcs(vc, start, s - start, | |
1648 | line, x); | |
1649 | x += s - start + 1; | |
1650 | start = s + 1; | |
1651 | } else { | |
1652 | x++; | |
1653 | start++; | |
1654 | } | |
1655 | } | |
1656 | s++; | |
1657 | d++; | |
1658 | } while (s < le); | |
1659 | if (s > start) | |
1660 | fbcon_putcs(vc, start, s - start, line, x); | |
1661 | line++; | |
1662 | if (d == (u16 *) softback_end) | |
1663 | d = (u16 *) softback_buf; | |
1664 | if (d == (u16 *) softback_in) | |
1665 | d = (u16 *) vc->vc_origin; | |
1666 | if (s == (u16 *) softback_end) | |
1667 | s = (u16 *) softback_buf; | |
1668 | if (s == (u16 *) softback_in) | |
1669 | s = (u16 *) vc->vc_origin; | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | static void fbcon_redraw_move(struct vc_data *vc, struct display *p, | |
1674 | int line, int count, int dy) | |
1675 | { | |
1676 | unsigned short *s = (unsigned short *) | |
1677 | (vc->vc_origin + vc->vc_size_row * line); | |
1678 | ||
1679 | while (count--) { | |
1680 | unsigned short *start = s; | |
1681 | unsigned short *le = advance_row(s, 1); | |
1682 | unsigned short c; | |
1683 | int x = 0; | |
1684 | unsigned short attr = 1; | |
1685 | ||
1686 | do { | |
1687 | c = scr_readw(s); | |
1688 | if (attr != (c & 0xff00)) { | |
1689 | attr = c & 0xff00; | |
1690 | if (s > start) { | |
1691 | fbcon_putcs(vc, start, s - start, | |
1692 | dy, x); | |
1693 | x += s - start; | |
1694 | start = s; | |
1695 | } | |
1696 | } | |
1697 | console_conditional_schedule(); | |
1698 | s++; | |
1699 | } while (s < le); | |
1700 | if (s > start) | |
1701 | fbcon_putcs(vc, start, s - start, dy, x); | |
1702 | console_conditional_schedule(); | |
1703 | dy++; | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | static void fbcon_redraw(struct vc_data *vc, struct display *p, | |
1708 | int line, int count, int offset) | |
1709 | { | |
1710 | unsigned short *d = (unsigned short *) | |
1711 | (vc->vc_origin + vc->vc_size_row * line); | |
1712 | unsigned short *s = d + offset; | |
1713 | ||
1714 | while (count--) { | |
1715 | unsigned short *start = s; | |
1716 | unsigned short *le = advance_row(s, 1); | |
1717 | unsigned short c; | |
1718 | int x = 0; | |
1719 | unsigned short attr = 1; | |
1720 | ||
1721 | do { | |
1722 | c = scr_readw(s); | |
1723 | if (attr != (c & 0xff00)) { | |
1724 | attr = c & 0xff00; | |
1725 | if (s > start) { | |
1726 | fbcon_putcs(vc, start, s - start, | |
1727 | line, x); | |
1728 | x += s - start; | |
1729 | start = s; | |
1730 | } | |
1731 | } | |
1732 | if (c == scr_readw(d)) { | |
1733 | if (s > start) { | |
1734 | fbcon_putcs(vc, start, s - start, | |
1735 | line, x); | |
1736 | x += s - start + 1; | |
1737 | start = s + 1; | |
1738 | } else { | |
1739 | x++; | |
1740 | start++; | |
1741 | } | |
1742 | } | |
1743 | scr_writew(c, d); | |
1744 | console_conditional_schedule(); | |
1745 | s++; | |
1746 | d++; | |
1747 | } while (s < le); | |
1748 | if (s > start) | |
1749 | fbcon_putcs(vc, start, s - start, line, x); | |
1750 | console_conditional_schedule(); | |
1751 | if (offset > 0) | |
1752 | line++; | |
1753 | else { | |
1754 | line--; | |
1755 | /* NOTE: We subtract two lines from these pointers */ | |
1756 | s -= vc->vc_size_row; | |
1757 | d -= vc->vc_size_row; | |
1758 | } | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | static inline void fbcon_softback_note(struct vc_data *vc, int t, | |
1763 | int count) | |
1764 | { | |
1765 | unsigned short *p; | |
1766 | ||
1767 | if (vc->vc_num != fg_console) | |
1768 | return; | |
1769 | p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); | |
1770 | ||
1771 | while (count) { | |
1772 | scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); | |
1773 | count--; | |
1774 | p = advance_row(p, 1); | |
1775 | softback_in += vc->vc_size_row; | |
1776 | if (softback_in == softback_end) | |
1777 | softback_in = softback_buf; | |
1778 | if (softback_in == softback_top) { | |
1779 | softback_top += vc->vc_size_row; | |
1780 | if (softback_top == softback_end) | |
1781 | softback_top = softback_buf; | |
1782 | } | |
1783 | } | |
1784 | softback_curr = softback_in; | |
1785 | } | |
1786 | ||
1787 | static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, | |
1788 | int count) | |
1789 | { | |
1790 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1791 | struct display *p = &fb_display[vc->vc_num]; | |
1792 | struct fbcon_ops *ops = info->fbcon_par; | |
1793 | int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; | |
1794 | ||
1795 | if (fbcon_is_inactive(vc, info)) | |
1796 | return -EINVAL; | |
1797 | ||
1798 | fbcon_cursor(vc, CM_ERASE); | |
1799 | ||
1800 | /* | |
1801 | * ++Geert: Only use ywrap/ypan if the console is in text mode | |
1802 | * ++Andrew: Only use ypan on hardware text mode when scrolling the | |
1803 | * whole screen (prevents flicker). | |
1804 | */ | |
1805 | ||
1806 | switch (dir) { | |
1807 | case SM_UP: | |
1808 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1809 | count = vc->vc_rows; | |
1810 | if (softback_top) | |
1811 | fbcon_softback_note(vc, t, count); | |
1812 | if (logo_shown >= 0) | |
1813 | goto redraw_up; | |
1814 | switch (p->scrollmode) { | |
1815 | case SCROLL_MOVE: | |
1816 | ops->bmove(vc, info, t + count, 0, t, 0, | |
1817 | b - t - count, vc->vc_cols); | |
1818 | ops->clear(vc, info, b - count, 0, count, | |
1819 | vc->vc_cols); | |
1820 | break; | |
1821 | ||
1822 | case SCROLL_WRAP_MOVE: | |
1823 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1824 | if (t > 0) | |
1825 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1826 | vc->vc_cols); | |
1827 | ywrap_up(vc, count); | |
1828 | if (vc->vc_rows - b > 0) | |
1829 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1830 | vc->vc_rows - b, | |
1831 | vc->vc_cols); | |
1832 | } else if (info->flags & FBINFO_READS_FAST) | |
1833 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1834 | b - t - count, vc->vc_cols); | |
1835 | else | |
1836 | goto redraw_up; | |
1837 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1838 | break; | |
1839 | ||
1840 | case SCROLL_PAN_REDRAW: | |
1841 | if ((p->yscroll + count <= | |
1842 | 2 * (p->vrows - vc->vc_rows)) | |
1843 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1844 | || (scroll_partial | |
1845 | && (b - t - count > | |
1846 | 3 * vc->vc_rows >> 2)))) { | |
1847 | if (t > 0) | |
1848 | fbcon_redraw_move(vc, p, 0, t, count); | |
1849 | ypan_up_redraw(vc, t, count); | |
1850 | if (vc->vc_rows - b > 0) | |
26e780e8 | 1851 | fbcon_redraw_move(vc, p, b, |
1da177e4 LT |
1852 | vc->vc_rows - b, b); |
1853 | } else | |
1854 | fbcon_redraw_move(vc, p, t + count, b - t - count, t); | |
1855 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1856 | break; | |
1857 | ||
1858 | case SCROLL_PAN_MOVE: | |
1859 | if ((p->yscroll + count <= | |
1860 | 2 * (p->vrows - vc->vc_rows)) | |
1861 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1862 | || (scroll_partial | |
1863 | && (b - t - count > | |
1864 | 3 * vc->vc_rows >> 2)))) { | |
1865 | if (t > 0) | |
1866 | fbcon_bmove(vc, 0, 0, count, 0, t, | |
1867 | vc->vc_cols); | |
1868 | ypan_up(vc, count); | |
1869 | if (vc->vc_rows - b > 0) | |
1870 | fbcon_bmove(vc, b - count, 0, b, 0, | |
1871 | vc->vc_rows - b, | |
1872 | vc->vc_cols); | |
1873 | } else if (info->flags & FBINFO_READS_FAST) | |
1874 | fbcon_bmove(vc, t + count, 0, t, 0, | |
1875 | b - t - count, vc->vc_cols); | |
1876 | else | |
1877 | goto redraw_up; | |
1878 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1879 | break; | |
1880 | ||
1881 | case SCROLL_REDRAW: | |
1882 | redraw_up: | |
1883 | fbcon_redraw(vc, p, t, b - t - count, | |
1884 | count * vc->vc_cols); | |
1885 | fbcon_clear(vc, b - count, 0, count, vc->vc_cols); | |
1886 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1887 | vc->vc_size_row * | |
1888 | (b - count)), | |
1889 | vc->vc_video_erase_char, | |
1890 | vc->vc_size_row * count); | |
1891 | return 1; | |
1892 | } | |
1893 | break; | |
1894 | ||
1895 | case SM_DOWN: | |
1896 | if (count > vc->vc_rows) /* Maximum realistic size */ | |
1897 | count = vc->vc_rows; | |
e703ecc3 JB |
1898 | if (logo_shown >= 0) |
1899 | goto redraw_down; | |
1da177e4 LT |
1900 | switch (p->scrollmode) { |
1901 | case SCROLL_MOVE: | |
1902 | ops->bmove(vc, info, t, 0, t + count, 0, | |
1903 | b - t - count, vc->vc_cols); | |
1904 | ops->clear(vc, info, t, 0, count, vc->vc_cols); | |
1905 | break; | |
1906 | ||
1907 | case SCROLL_WRAP_MOVE: | |
1908 | if (b - t - count > 3 * vc->vc_rows >> 2) { | |
1909 | if (vc->vc_rows - b > 0) | |
1910 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1911 | vc->vc_rows - b, | |
1912 | vc->vc_cols); | |
1913 | ywrap_down(vc, count); | |
1914 | if (t > 0) | |
1915 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1916 | vc->vc_cols); | |
1917 | } else if (info->flags & FBINFO_READS_FAST) | |
1918 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1919 | b - t - count, vc->vc_cols); | |
1920 | else | |
1921 | goto redraw_down; | |
1922 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1923 | break; | |
1924 | ||
1925 | case SCROLL_PAN_MOVE: | |
1926 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1927 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1928 | || (scroll_partial | |
1929 | && (b - t - count > | |
1930 | 3 * vc->vc_rows >> 2)))) { | |
1931 | if (vc->vc_rows - b > 0) | |
1932 | fbcon_bmove(vc, b, 0, b - count, 0, | |
1933 | vc->vc_rows - b, | |
1934 | vc->vc_cols); | |
1935 | ypan_down(vc, count); | |
1936 | if (t > 0) | |
1937 | fbcon_bmove(vc, count, 0, 0, 0, t, | |
1938 | vc->vc_cols); | |
1939 | } else if (info->flags & FBINFO_READS_FAST) | |
1940 | fbcon_bmove(vc, t, 0, t + count, 0, | |
1941 | b - t - count, vc->vc_cols); | |
1942 | else | |
1943 | goto redraw_down; | |
1944 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1945 | break; | |
1946 | ||
1947 | case SCROLL_PAN_REDRAW: | |
1948 | if ((count - p->yscroll <= p->vrows - vc->vc_rows) | |
1949 | && ((!scroll_partial && (b - t == vc->vc_rows)) | |
1950 | || (scroll_partial | |
1951 | && (b - t - count > | |
1952 | 3 * vc->vc_rows >> 2)))) { | |
1953 | if (vc->vc_rows - b > 0) | |
1954 | fbcon_redraw_move(vc, p, b, vc->vc_rows - b, | |
1955 | b - count); | |
1956 | ypan_down_redraw(vc, t, count); | |
1957 | if (t > 0) | |
1958 | fbcon_redraw_move(vc, p, count, t, 0); | |
1959 | } else | |
1960 | fbcon_redraw_move(vc, p, t, b - t - count, t + count); | |
1961 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1962 | break; | |
1963 | ||
1964 | case SCROLL_REDRAW: | |
1965 | redraw_down: | |
1966 | fbcon_redraw(vc, p, b - 1, b - t - count, | |
1967 | -count * vc->vc_cols); | |
1968 | fbcon_clear(vc, t, 0, count, vc->vc_cols); | |
1969 | scr_memsetw((unsigned short *) (vc->vc_origin + | |
1970 | vc->vc_size_row * | |
1971 | t), | |
1972 | vc->vc_video_erase_char, | |
1973 | vc->vc_size_row * count); | |
1974 | return 1; | |
1975 | } | |
1976 | } | |
1977 | return 0; | |
1978 | } | |
1979 | ||
1980 | ||
1981 | static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx, | |
1982 | int height, int width) | |
1983 | { | |
1984 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
1985 | struct display *p = &fb_display[vc->vc_num]; | |
1986 | ||
1987 | if (fbcon_is_inactive(vc, info)) | |
1988 | return; | |
1989 | ||
1990 | if (!width || !height) | |
1991 | return; | |
1992 | ||
1993 | /* Split blits that cross physical y_wrap case. | |
1994 | * Pathological case involves 4 blits, better to use recursive | |
1995 | * code rather than unrolled case | |
1996 | * | |
1997 | * Recursive invocations don't need to erase the cursor over and | |
1998 | * over again, so we use fbcon_bmove_rec() | |
1999 | */ | |
2000 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width, | |
2001 | p->vrows - p->yscroll); | |
2002 | } | |
2003 | ||
2004 | static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, | |
2005 | int dy, int dx, int height, int width, u_int y_break) | |
2006 | { | |
2007 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2008 | struct fbcon_ops *ops = info->fbcon_par; | |
2009 | u_int b; | |
2010 | ||
2011 | if (sy < y_break && sy + height > y_break) { | |
2012 | b = y_break - sy; | |
2013 | if (dy < sy) { /* Avoid trashing self */ | |
2014 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2015 | y_break); | |
2016 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2017 | height - b, width, y_break); | |
2018 | } else { | |
2019 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2020 | height - b, width, y_break); | |
2021 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2022 | y_break); | |
2023 | } | |
2024 | return; | |
2025 | } | |
2026 | ||
2027 | if (dy < y_break && dy + height > y_break) { | |
2028 | b = y_break - dy; | |
2029 | if (dy < sy) { /* Avoid trashing self */ | |
2030 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2031 | y_break); | |
2032 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2033 | height - b, width, y_break); | |
2034 | } else { | |
2035 | fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx, | |
2036 | height - b, width, y_break); | |
2037 | fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width, | |
2038 | y_break); | |
2039 | } | |
2040 | return; | |
2041 | } | |
2042 | ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx, | |
2043 | height, width); | |
2044 | } | |
2045 | ||
e4fc2761 AD |
2046 | static __inline__ void updatescrollmode(struct display *p, |
2047 | struct fb_info *info, | |
1da177e4 LT |
2048 | struct vc_data *vc) |
2049 | { | |
e4fc2761 | 2050 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2051 | int fh = vc->vc_font.height; |
2052 | int cap = info->flags; | |
e4fc2761 AD |
2053 | u16 t = 0; |
2054 | int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep, | |
2055 | info->fix.xpanstep); | |
2056 | int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t); | |
2057 | int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2058 | int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual, | |
2059 | info->var.xres_virtual); | |
2060 | int good_pan = (cap & FBINFO_HWACCEL_YPAN) && | |
2061 | divides(ypan, vc->vc_font.height) && vyres > yres; | |
2062 | int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) && | |
2063 | divides(ywrap, vc->vc_font.height) && | |
244ab72d KP |
2064 | divides(vc->vc_font.height, vyres) && |
2065 | divides(vc->vc_font.height, yres); | |
1da177e4 | 2066 | int reading_fast = cap & FBINFO_READS_FAST; |
e4fc2761 AD |
2067 | int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) && |
2068 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2069 | int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) && | |
2070 | !(cap & FBINFO_HWACCEL_DISABLED); | |
2071 | ||
2072 | p->vrows = vyres/fh; | |
2073 | if (yres > (fh * (vc->vc_rows + 1))) | |
2074 | p->vrows -= (yres - (fh * vc->vc_rows)) / fh; | |
2075 | if ((yres % fh) && (vyres % fh < yres % fh)) | |
1da177e4 LT |
2076 | p->vrows--; |
2077 | ||
2078 | if (good_wrap || good_pan) { | |
2079 | if (reading_fast || fast_copyarea) | |
e4fc2761 AD |
2080 | p->scrollmode = good_wrap ? |
2081 | SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE; | |
1da177e4 LT |
2082 | else |
2083 | p->scrollmode = good_wrap ? SCROLL_REDRAW : | |
2084 | SCROLL_PAN_REDRAW; | |
2085 | } else { | |
2086 | if (reading_fast || (fast_copyarea && !fast_imageblit)) | |
2087 | p->scrollmode = SCROLL_MOVE; | |
2088 | else | |
2089 | p->scrollmode = SCROLL_REDRAW; | |
2090 | } | |
2091 | } | |
2092 | ||
2093 | static int fbcon_resize(struct vc_data *vc, unsigned int width, | |
2094 | unsigned int height) | |
2095 | { | |
2096 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2097 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2098 | struct display *p = &fb_display[vc->vc_num]; |
2099 | struct fb_var_screeninfo var = info->var; | |
e4fc2761 AD |
2100 | int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; |
2101 | ||
2102 | virt_w = FBCON_SWAP(ops->rotate, width, height); | |
2103 | virt_h = FBCON_SWAP(ops->rotate, height, width); | |
2104 | virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, | |
2105 | vc->vc_font.height); | |
2106 | virt_fh = FBCON_SWAP(ops->rotate, vc->vc_font.height, | |
2107 | vc->vc_font.width); | |
2108 | var.xres = virt_w * virt_fw; | |
2109 | var.yres = virt_h * virt_fh; | |
1da177e4 LT |
2110 | x_diff = info->var.xres - var.xres; |
2111 | y_diff = info->var.yres - var.yres; | |
e4fc2761 AD |
2112 | if (x_diff < 0 || x_diff > virt_fw || |
2113 | y_diff < 0 || y_diff > virt_fh) { | |
9791d763 | 2114 | const struct fb_videomode *mode; |
1da177e4 LT |
2115 | |
2116 | DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); | |
2117 | mode = fb_find_best_mode(&var, &info->modelist); | |
2118 | if (mode == NULL) | |
2119 | return -EINVAL; | |
3084a895 | 2120 | display_to_var(&var, p); |
1da177e4 | 2121 | fb_videomode_to_var(&var, mode); |
3084a895 | 2122 | |
e4fc2761 | 2123 | if (virt_w > var.xres/virt_fw || virt_h > var.yres/virt_fh) |
1da177e4 | 2124 | return -EINVAL; |
1da177e4 LT |
2125 | |
2126 | DPRINTK("resize now %ix%i\n", var.xres, var.yres); | |
2127 | if (CON_IS_VISIBLE(vc)) { | |
2128 | var.activate = FB_ACTIVATE_NOW | | |
2129 | FB_ACTIVATE_FORCE; | |
2130 | fb_set_var(info, &var); | |
2131 | } | |
2132 | var_to_display(p, &info->var, info); | |
e4fc2761 | 2133 | ops->var = info->var; |
1da177e4 LT |
2134 | } |
2135 | updatescrollmode(p, info, vc); | |
2136 | return 0; | |
2137 | } | |
2138 | ||
2139 | static int fbcon_switch(struct vc_data *vc) | |
2140 | { | |
88fb2c6e | 2141 | struct fb_info *info, *old_info = NULL; |
e4fc2761 | 2142 | struct fbcon_ops *ops; |
1da177e4 LT |
2143 | struct display *p = &fb_display[vc->vc_num]; |
2144 | struct fb_var_screeninfo var; | |
56f0d64d | 2145 | int i, prev_console, charcnt = 256; |
1da177e4 LT |
2146 | |
2147 | info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2148 | ops = info->fbcon_par; |
1da177e4 LT |
2149 | |
2150 | if (softback_top) { | |
1da177e4 LT |
2151 | if (softback_lines) |
2152 | fbcon_set_origin(vc); | |
2153 | softback_top = softback_curr = softback_in = softback_buf; | |
2154 | softback_lines = 0; | |
4d9c5b6e | 2155 | fbcon_update_softback(vc); |
1da177e4 LT |
2156 | } |
2157 | ||
2158 | if (logo_shown >= 0) { | |
2159 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2160 | ||
2161 | if (conp2->vc_top == logo_lines | |
2162 | && conp2->vc_bottom == conp2->vc_rows) | |
2163 | conp2->vc_top = 0; | |
2164 | logo_shown = FBCON_LOGO_CANSHOW; | |
2165 | } | |
2166 | ||
e4fc2761 | 2167 | prev_console = ops->currcon; |
88fb2c6e AD |
2168 | if (prev_console != -1) |
2169 | old_info = registered_fb[con2fb_map[prev_console]]; | |
1da177e4 LT |
2170 | /* |
2171 | * FIXME: If we have multiple fbdev's loaded, we need to | |
2172 | * update all info->currcon. Perhaps, we can place this | |
2173 | * in a centralized structure, but this might break some | |
2174 | * drivers. | |
2175 | * | |
2176 | * info->currcon = vc->vc_num; | |
2177 | */ | |
2178 | for (i = 0; i < FB_MAX; i++) { | |
2179 | if (registered_fb[i] != NULL && registered_fb[i]->fbcon_par) { | |
e4fc2761 | 2180 | struct fbcon_ops *o = registered_fb[i]->fbcon_par; |
1da177e4 | 2181 | |
e4fc2761 | 2182 | o->currcon = vc->vc_num; |
1da177e4 LT |
2183 | } |
2184 | } | |
2185 | memset(&var, 0, sizeof(struct fb_var_screeninfo)); | |
2186 | display_to_var(&var, p); | |
2187 | var.activate = FB_ACTIVATE_NOW; | |
2188 | ||
2189 | /* | |
2190 | * make sure we don't unnecessarily trip the memcmp() | |
2191 | * in fb_set_var() | |
2192 | */ | |
2193 | info->var.activate = var.activate; | |
e4fc2761 AD |
2194 | var.yoffset = info->var.yoffset; |
2195 | var.xoffset = info->var.xoffset; | |
2196 | var.vmode = info->var.vmode; | |
1da177e4 | 2197 | fb_set_var(info, &var); |
e4fc2761 | 2198 | ops->var = info->var; |
1da177e4 | 2199 | |
39942fd8 KP |
2200 | if (old_info != NULL && (old_info != info || |
2201 | info->flags & FBINFO_MISC_ALWAYS_SETPAR)) { | |
88fb2c6e AD |
2202 | if (info->fbops->fb_set_par) |
2203 | info->fbops->fb_set_par(info); | |
a39bc34e | 2204 | |
5428b044 | 2205 | if (old_info != info) |
a39bc34e | 2206 | fbcon_del_cursor_timer(old_info); |
88fb2c6e | 2207 | } |
1da177e4 | 2208 | |
212f2639 AD |
2209 | if (fbcon_is_inactive(vc, info) || |
2210 | ops->blank_state != FB_BLANK_UNBLANK) | |
2211 | fbcon_del_cursor_timer(info); | |
2212 | else | |
2213 | fbcon_add_cursor_timer(info); | |
2214 | ||
b73deed3 | 2215 | set_blitting_type(vc, info); |
e4fc2761 AD |
2216 | ops->cursor_reset = 1; |
2217 | ||
b73deed3 | 2218 | if (ops->rotate_font && ops->rotate_font(info, vc)) { |
e4fc2761 | 2219 | ops->rotate = FB_ROTATE_UR; |
b73deed3 | 2220 | set_blitting_type(vc, info); |
e4fc2761 | 2221 | } |
1da177e4 | 2222 | |
b8c90945 | 2223 | vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); |
1da177e4 | 2224 | vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; |
56f0d64d AD |
2225 | |
2226 | if (p->userfont) | |
2227 | charcnt = FNTCHARCNT(vc->vc_font.data); | |
2228 | ||
2229 | if (charcnt > 256) | |
2230 | vc->vc_complement_mask <<= 1; | |
2231 | ||
1da177e4 LT |
2232 | updatescrollmode(p, info, vc); |
2233 | ||
2234 | switch (p->scrollmode) { | |
2235 | case SCROLL_WRAP_MOVE: | |
2236 | scrollback_phys_max = p->vrows - vc->vc_rows; | |
2237 | break; | |
2238 | case SCROLL_PAN_MOVE: | |
2239 | case SCROLL_PAN_REDRAW: | |
2240 | scrollback_phys_max = p->vrows - 2 * vc->vc_rows; | |
2241 | if (scrollback_phys_max < 0) | |
2242 | scrollback_phys_max = 0; | |
2243 | break; | |
2244 | default: | |
2245 | scrollback_phys_max = 0; | |
2246 | break; | |
2247 | } | |
e4fc2761 | 2248 | |
1da177e4 LT |
2249 | scrollback_max = 0; |
2250 | scrollback_current = 0; | |
4e1567d3 AD |
2251 | |
2252 | if (!fbcon_is_inactive(vc, info)) { | |
2253 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2254 | ops->update_start(info); | |
2255 | } | |
2256 | ||
1da177e4 LT |
2257 | fbcon_set_palette(vc, color_table); |
2258 | fbcon_clear_margins(vc, 0); | |
2259 | ||
2260 | if (logo_shown == FBCON_LOGO_DRAW) { | |
2261 | ||
2262 | logo_shown = fg_console; | |
2263 | /* This is protected above by initmem_freed */ | |
9c44e5f6 | 2264 | fb_show_logo(info, ops->rotate); |
1da177e4 LT |
2265 | update_region(vc, |
2266 | vc->vc_origin + vc->vc_size_row * vc->vc_top, | |
2267 | vc->vc_size_row * (vc->vc_bottom - | |
2268 | vc->vc_top) / 2); | |
2269 | return 0; | |
2270 | } | |
2271 | return 1; | |
2272 | } | |
2273 | ||
2274 | static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info, | |
2275 | int blank) | |
2276 | { | |
994efacd RP |
2277 | struct fb_event event; |
2278 | ||
1da177e4 LT |
2279 | if (blank) { |
2280 | unsigned short charmask = vc->vc_hi_font_mask ? | |
2281 | 0x1ff : 0xff; | |
2282 | unsigned short oldc; | |
2283 | ||
2284 | oldc = vc->vc_video_erase_char; | |
2285 | vc->vc_video_erase_char &= charmask; | |
2286 | fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols); | |
2287 | vc->vc_video_erase_char = oldc; | |
2288 | } | |
994efacd RP |
2289 | |
2290 | ||
2291 | event.info = info; | |
2292 | event.data = ␣ | |
2293 | fb_notifier_call_chain(FB_EVENT_CONBLANK, &event); | |
1da177e4 LT |
2294 | } |
2295 | ||
2296 | static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) | |
2297 | { | |
2298 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2299 | struct fbcon_ops *ops = info->fbcon_par; | |
2300 | ||
2301 | if (mode_switch) { | |
2302 | struct fb_var_screeninfo var = info->var; | |
2303 | ||
2304 | ops->graphics = 1; | |
2305 | ||
2306 | if (!blank) { | |
47434847 AD |
2307 | if (info->fbops->fb_save_state) |
2308 | info->fbops->fb_save_state(info); | |
1da177e4 LT |
2309 | var.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; |
2310 | fb_set_var(info, &var); | |
2311 | ops->graphics = 0; | |
e4fc2761 | 2312 | ops->var = info->var; |
47434847 AD |
2313 | } else if (info->fbops->fb_restore_state) |
2314 | info->fbops->fb_restore_state(info); | |
1da177e4 LT |
2315 | } |
2316 | ||
2317 | if (!fbcon_is_inactive(vc, info)) { | |
2318 | if (ops->blank_state != blank) { | |
2319 | ops->blank_state = blank; | |
2320 | fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); | |
2321 | ops->cursor_flash = (!blank); | |
2322 | ||
2323 | if (fb_blank(info, blank)) | |
2324 | fbcon_generic_blank(vc, info, blank); | |
2325 | } | |
2326 | ||
88fb2c6e AD |
2327 | if (!blank) |
2328 | update_screen(vc); | |
2329 | } | |
2330 | ||
212f2639 AD |
2331 | if (fbcon_is_inactive(vc, info) || |
2332 | ops->blank_state != FB_BLANK_UNBLANK) | |
88fb2c6e | 2333 | fbcon_del_cursor_timer(info); |
212f2639 AD |
2334 | else |
2335 | fbcon_add_cursor_timer(info); | |
1da177e4 | 2336 | |
88fb2c6e | 2337 | return 0; |
1da177e4 LT |
2338 | } |
2339 | ||
1da177e4 LT |
2340 | static int fbcon_get_font(struct vc_data *vc, struct console_font *font) |
2341 | { | |
2342 | u8 *fontdata = vc->vc_font.data; | |
2343 | u8 *data = font->data; | |
2344 | int i, j; | |
2345 | ||
2346 | font->width = vc->vc_font.width; | |
2347 | font->height = vc->vc_font.height; | |
2348 | font->charcount = vc->vc_hi_font_mask ? 512 : 256; | |
2349 | if (!font->data) | |
2350 | return 0; | |
2351 | ||
2352 | if (font->width <= 8) { | |
2353 | j = vc->vc_font.height; | |
2354 | for (i = 0; i < font->charcount; i++) { | |
2355 | memcpy(data, fontdata, j); | |
2356 | memset(data + j, 0, 32 - j); | |
2357 | data += 32; | |
2358 | fontdata += j; | |
2359 | } | |
2360 | } else if (font->width <= 16) { | |
2361 | j = vc->vc_font.height * 2; | |
2362 | for (i = 0; i < font->charcount; i++) { | |
2363 | memcpy(data, fontdata, j); | |
2364 | memset(data + j, 0, 64 - j); | |
2365 | data += 64; | |
2366 | fontdata += j; | |
2367 | } | |
2368 | } else if (font->width <= 24) { | |
2369 | for (i = 0; i < font->charcount; i++) { | |
2370 | for (j = 0; j < vc->vc_font.height; j++) { | |
2371 | *data++ = fontdata[0]; | |
2372 | *data++ = fontdata[1]; | |
2373 | *data++ = fontdata[2]; | |
2374 | fontdata += sizeof(u32); | |
2375 | } | |
2376 | memset(data, 0, 3 * (32 - j)); | |
2377 | data += 3 * (32 - j); | |
2378 | } | |
2379 | } else { | |
2380 | j = vc->vc_font.height * 4; | |
2381 | for (i = 0; i < font->charcount; i++) { | |
2382 | memcpy(data, fontdata, j); | |
2383 | memset(data + j, 0, 128 - j); | |
2384 | data += 128; | |
2385 | fontdata += j; | |
2386 | } | |
2387 | } | |
2388 | return 0; | |
2389 | } | |
2390 | ||
2391 | static int fbcon_do_set_font(struct vc_data *vc, int w, int h, | |
2f4516db | 2392 | const u8 * data, int userfont) |
1da177e4 LT |
2393 | { |
2394 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
e4fc2761 | 2395 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2396 | struct display *p = &fb_display[vc->vc_num]; |
2397 | int resize; | |
2398 | int cnt; | |
2399 | char *old_data = NULL; | |
2400 | ||
2401 | if (CON_IS_VISIBLE(vc) && softback_lines) | |
2402 | fbcon_set_origin(vc); | |
2403 | ||
2404 | resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); | |
2405 | if (p->userfont) | |
2406 | old_data = vc->vc_font.data; | |
2407 | if (userfont) | |
2408 | cnt = FNTCHARCNT(data); | |
2409 | else | |
2410 | cnt = 256; | |
2f4516db | 2411 | vc->vc_font.data = (void *)(p->fontdata = data); |
1da177e4 LT |
2412 | if ((p->userfont = userfont)) |
2413 | REFCOUNT(data)++; | |
2414 | vc->vc_font.width = w; | |
2415 | vc->vc_font.height = h; | |
2416 | if (vc->vc_hi_font_mask && cnt == 256) { | |
2417 | vc->vc_hi_font_mask = 0; | |
2418 | if (vc->vc_can_do_color) { | |
2419 | vc->vc_complement_mask >>= 1; | |
2420 | vc->vc_s_complement_mask >>= 1; | |
2421 | } | |
2422 | ||
2423 | /* ++Edmund: reorder the attribute bits */ | |
2424 | if (vc->vc_can_do_color) { | |
2425 | unsigned short *cp = | |
2426 | (unsigned short *) vc->vc_origin; | |
2427 | int count = vc->vc_screenbuf_size / 2; | |
2428 | unsigned short c; | |
2429 | for (; count > 0; count--, cp++) { | |
2430 | c = scr_readw(cp); | |
2431 | scr_writew(((c & 0xfe00) >> 1) | | |
2432 | (c & 0xff), cp); | |
2433 | } | |
2434 | c = vc->vc_video_erase_char; | |
2435 | vc->vc_video_erase_char = | |
2436 | ((c & 0xfe00) >> 1) | (c & 0xff); | |
2437 | vc->vc_attr >>= 1; | |
2438 | } | |
2439 | } else if (!vc->vc_hi_font_mask && cnt == 512) { | |
2440 | vc->vc_hi_font_mask = 0x100; | |
2441 | if (vc->vc_can_do_color) { | |
2442 | vc->vc_complement_mask <<= 1; | |
2443 | vc->vc_s_complement_mask <<= 1; | |
2444 | } | |
2445 | ||
2446 | /* ++Edmund: reorder the attribute bits */ | |
2447 | { | |
2448 | unsigned short *cp = | |
2449 | (unsigned short *) vc->vc_origin; | |
2450 | int count = vc->vc_screenbuf_size / 2; | |
2451 | unsigned short c; | |
2452 | for (; count > 0; count--, cp++) { | |
2453 | unsigned short newc; | |
2454 | c = scr_readw(cp); | |
2455 | if (vc->vc_can_do_color) | |
2456 | newc = | |
2457 | ((c & 0xff00) << 1) | (c & | |
2458 | 0xff); | |
2459 | else | |
2460 | newc = c & ~0x100; | |
2461 | scr_writew(newc, cp); | |
2462 | } | |
2463 | c = vc->vc_video_erase_char; | |
2464 | if (vc->vc_can_do_color) { | |
2465 | vc->vc_video_erase_char = | |
2466 | ((c & 0xff00) << 1) | (c & 0xff); | |
2467 | vc->vc_attr <<= 1; | |
2468 | } else | |
2469 | vc->vc_video_erase_char = c & ~0x100; | |
2470 | } | |
2471 | ||
2472 | } | |
2473 | ||
2474 | if (resize) { | |
e4fc2761 AD |
2475 | int cols, rows; |
2476 | ||
2477 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); | |
2478 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2479 | cols /= w; | |
2480 | rows /= h; | |
2481 | vc_resize(vc, cols, rows); | |
4d9c5b6e AD |
2482 | if (CON_IS_VISIBLE(vc) && softback_buf) |
2483 | fbcon_update_softback(vc); | |
1da177e4 LT |
2484 | } else if (CON_IS_VISIBLE(vc) |
2485 | && vc->vc_mode == KD_TEXT) { | |
2486 | fbcon_clear_margins(vc, 0); | |
2487 | update_screen(vc); | |
2488 | } | |
2489 | ||
2490 | if (old_data && (--REFCOUNT(old_data) == 0)) | |
2491 | kfree(old_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2492 | return 0; | |
2493 | } | |
2494 | ||
2495 | static int fbcon_copy_font(struct vc_data *vc, int con) | |
2496 | { | |
2497 | struct display *od = &fb_display[con]; | |
2498 | struct console_font *f = &vc->vc_font; | |
2499 | ||
2500 | if (od->fontdata == f->data) | |
2501 | return 0; /* already the same font... */ | |
2502 | return fbcon_do_set_font(vc, f->width, f->height, od->fontdata, od->userfont); | |
2503 | } | |
2504 | ||
2505 | /* | |
2506 | * User asked to set font; we are guaranteed that | |
2507 | * a) width and height are in range 1..32 | |
2508 | * b) charcount does not exceed 512 | |
2509 | * but lets not assume that, since someone might someday want to use larger | |
2510 | * fonts. And charcount of 512 is small for unicode support. | |
2511 | * | |
2512 | * However, user space gives the font in 32 rows , regardless of | |
2513 | * actual font height. So a new API is needed if support for larger fonts | |
2514 | * is ever implemented. | |
2515 | */ | |
2516 | ||
2517 | static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigned flags) | |
2518 | { | |
2d2699d9 | 2519 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; |
1da177e4 LT |
2520 | unsigned charcount = font->charcount; |
2521 | int w = font->width; | |
2522 | int h = font->height; | |
2523 | int size; | |
2524 | int i, csum; | |
2525 | u8 *new_data, *data = font->data; | |
2526 | int pitch = (font->width+7) >> 3; | |
2527 | ||
2528 | /* Is there a reason why fbconsole couldn't handle any charcount >256? | |
2529 | * If not this check should be changed to charcount < 256 */ | |
2530 | if (charcount != 256 && charcount != 512) | |
2531 | return -EINVAL; | |
2532 | ||
2d2699d9 AD |
2533 | /* Make sure drawing engine can handle the font */ |
2534 | if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || | |
2535 | !(info->pixmap.blit_y & (1 << (font->height - 1)))) | |
2536 | return -EINVAL; | |
38b4982c AD |
2537 | |
2538 | /* Make sure driver can handle the font length */ | |
2539 | if (fbcon_invalid_charcount(info, charcount)) | |
2540 | return -EINVAL; | |
2d2699d9 | 2541 | |
1da177e4 LT |
2542 | size = h * pitch * charcount; |
2543 | ||
2544 | new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); | |
2545 | ||
2546 | if (!new_data) | |
2547 | return -ENOMEM; | |
2548 | ||
2549 | new_data += FONT_EXTRA_WORDS * sizeof(int); | |
2550 | FNTSIZE(new_data) = size; | |
2551 | FNTCHARCNT(new_data) = charcount; | |
2552 | REFCOUNT(new_data) = 0; /* usage counter */ | |
2553 | for (i=0; i< charcount; i++) { | |
2554 | memcpy(new_data + i*h*pitch, data + i*32*pitch, h*pitch); | |
2555 | } | |
2556 | ||
2557 | /* Since linux has a nice crc32 function use it for counting font | |
2558 | * checksums. */ | |
2559 | csum = crc32(0, new_data, size); | |
2560 | ||
2561 | FNTSUM(new_data) = csum; | |
2562 | /* Check if the same font is on some other console already */ | |
e614b18d | 2563 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
2564 | struct vc_data *tmp = vc_cons[i].d; |
2565 | ||
2566 | if (fb_display[i].userfont && | |
2567 | fb_display[i].fontdata && | |
2568 | FNTSUM(fb_display[i].fontdata) == csum && | |
2569 | FNTSIZE(fb_display[i].fontdata) == size && | |
2570 | tmp->vc_font.width == w && | |
2571 | !memcmp(fb_display[i].fontdata, new_data, size)) { | |
2572 | kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); | |
2f4516db | 2573 | new_data = (u8 *)fb_display[i].fontdata; |
1da177e4 LT |
2574 | break; |
2575 | } | |
2576 | } | |
2577 | return fbcon_do_set_font(vc, font->width, font->height, new_data, 1); | |
2578 | } | |
2579 | ||
2580 | static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name) | |
2581 | { | |
2582 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2f4516db | 2583 | const struct font_desc *f; |
1da177e4 LT |
2584 | |
2585 | if (!name) | |
2d2699d9 AD |
2586 | f = get_default_font(info->var.xres, info->var.yres, |
2587 | info->pixmap.blit_x, info->pixmap.blit_y); | |
1da177e4 LT |
2588 | else if (!(f = find_font(name))) |
2589 | return -ENOENT; | |
2590 | ||
2591 | font->width = f->width; | |
2592 | font->height = f->height; | |
2593 | return fbcon_do_set_font(vc, f->width, f->height, f->data, 0); | |
2594 | } | |
2595 | ||
2596 | static u16 palette_red[16]; | |
2597 | static u16 palette_green[16]; | |
2598 | static u16 palette_blue[16]; | |
2599 | ||
2600 | static struct fb_cmap palette_cmap = { | |
2601 | 0, 16, palette_red, palette_green, palette_blue, NULL | |
2602 | }; | |
2603 | ||
2604 | static int fbcon_set_palette(struct vc_data *vc, unsigned char *table) | |
2605 | { | |
2606 | struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; | |
2607 | int i, j, k, depth; | |
2608 | u8 val; | |
2609 | ||
2610 | if (fbcon_is_inactive(vc, info)) | |
2611 | return -EINVAL; | |
2612 | ||
2613 | if (!CON_IS_VISIBLE(vc)) | |
2614 | return 0; | |
2615 | ||
b8c90945 | 2616 | depth = fb_get_color_depth(&info->var, &info->fix); |
1da177e4 LT |
2617 | if (depth > 3) { |
2618 | for (i = j = 0; i < 16; i++) { | |
2619 | k = table[i]; | |
2620 | val = vc->vc_palette[j++]; | |
2621 | palette_red[k] = (val << 8) | val; | |
2622 | val = vc->vc_palette[j++]; | |
2623 | palette_green[k] = (val << 8) | val; | |
2624 | val = vc->vc_palette[j++]; | |
2625 | palette_blue[k] = (val << 8) | val; | |
2626 | } | |
2627 | palette_cmap.len = 16; | |
2628 | palette_cmap.start = 0; | |
2629 | /* | |
2630 | * If framebuffer is capable of less than 16 colors, | |
2631 | * use default palette of fbcon. | |
2632 | */ | |
2633 | } else | |
2634 | fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap); | |
2635 | ||
2636 | return fb_set_cmap(&palette_cmap, info); | |
2637 | } | |
2638 | ||
2639 | static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) | |
2640 | { | |
2641 | unsigned long p; | |
2642 | int line; | |
2643 | ||
2644 | if (vc->vc_num != fg_console || !softback_lines) | |
2645 | return (u16 *) (vc->vc_origin + offset); | |
2646 | line = offset / vc->vc_size_row; | |
2647 | if (line >= softback_lines) | |
2648 | return (u16 *) (vc->vc_origin + offset - | |
2649 | softback_lines * vc->vc_size_row); | |
2650 | p = softback_curr + offset; | |
2651 | if (p >= softback_end) | |
2652 | p += softback_buf - softback_end; | |
2653 | return (u16 *) p; | |
2654 | } | |
2655 | ||
2656 | static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, | |
2657 | int *px, int *py) | |
2658 | { | |
2659 | unsigned long ret; | |
2660 | int x, y; | |
2661 | ||
2662 | if (pos >= vc->vc_origin && pos < vc->vc_scr_end) { | |
2663 | unsigned long offset = (pos - vc->vc_origin) / 2; | |
2664 | ||
2665 | x = offset % vc->vc_cols; | |
2666 | y = offset / vc->vc_cols; | |
2667 | if (vc->vc_num == fg_console) | |
2668 | y += softback_lines; | |
2669 | ret = pos + (vc->vc_cols - x) * 2; | |
2670 | } else if (vc->vc_num == fg_console && softback_lines) { | |
2671 | unsigned long offset = pos - softback_curr; | |
2672 | ||
2673 | if (pos < softback_curr) | |
2674 | offset += softback_end - softback_buf; | |
2675 | offset /= 2; | |
2676 | x = offset % vc->vc_cols; | |
2677 | y = offset / vc->vc_cols; | |
2678 | ret = pos + (vc->vc_cols - x) * 2; | |
2679 | if (ret == softback_end) | |
2680 | ret = softback_buf; | |
2681 | if (ret == softback_in) | |
2682 | ret = vc->vc_origin; | |
2683 | } else { | |
2684 | /* Should not happen */ | |
2685 | x = y = 0; | |
2686 | ret = vc->vc_origin; | |
2687 | } | |
2688 | if (px) | |
2689 | *px = x; | |
2690 | if (py) | |
2691 | *py = y; | |
2692 | return ret; | |
2693 | } | |
2694 | ||
2695 | /* As we might be inside of softback, we may work with non-contiguous buffer, | |
2696 | that's why we have to use a separate routine. */ | |
2697 | static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) | |
2698 | { | |
2699 | while (cnt--) { | |
2700 | u16 a = scr_readw(p); | |
2701 | if (!vc->vc_can_do_color) | |
2702 | a ^= 0x0800; | |
2703 | else if (vc->vc_hi_font_mask == 0x100) | |
2704 | a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | | |
2705 | (((a) & 0x0e00) << 4); | |
2706 | else | |
2707 | a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | | |
2708 | (((a) & 0x0700) << 4); | |
2709 | scr_writew(a, p++); | |
2710 | if (p == (u16 *) softback_end) | |
2711 | p = (u16 *) softback_buf; | |
2712 | if (p == (u16 *) softback_in) | |
2713 | p = (u16 *) vc->vc_origin; | |
2714 | } | |
2715 | } | |
2716 | ||
2717 | static int fbcon_scrolldelta(struct vc_data *vc, int lines) | |
2718 | { | |
2719 | struct fb_info *info = registered_fb[con2fb_map[fg_console]]; | |
e4fc2761 | 2720 | struct fbcon_ops *ops = info->fbcon_par; |
1da177e4 LT |
2721 | struct display *p = &fb_display[fg_console]; |
2722 | int offset, limit, scrollback_old; | |
2723 | ||
2724 | if (softback_top) { | |
2725 | if (vc->vc_num != fg_console) | |
2726 | return 0; | |
2727 | if (vc->vc_mode != KD_TEXT || !lines) | |
2728 | return 0; | |
2729 | if (logo_shown >= 0) { | |
2730 | struct vc_data *conp2 = vc_cons[logo_shown].d; | |
2731 | ||
2732 | if (conp2->vc_top == logo_lines | |
2733 | && conp2->vc_bottom == conp2->vc_rows) | |
2734 | conp2->vc_top = 0; | |
2735 | if (logo_shown == vc->vc_num) { | |
2736 | unsigned long p, q; | |
2737 | int i; | |
2738 | ||
2739 | p = softback_in; | |
2740 | q = vc->vc_origin + | |
2741 | logo_lines * vc->vc_size_row; | |
2742 | for (i = 0; i < logo_lines; i++) { | |
2743 | if (p == softback_top) | |
2744 | break; | |
2745 | if (p == softback_buf) | |
2746 | p = softback_end; | |
2747 | p -= vc->vc_size_row; | |
2748 | q -= vc->vc_size_row; | |
2749 | scr_memcpyw((u16 *) q, (u16 *) p, | |
2750 | vc->vc_size_row); | |
2751 | } | |
308af929 | 2752 | softback_in = softback_curr = p; |
1da177e4 LT |
2753 | update_region(vc, vc->vc_origin, |
2754 | logo_lines * vc->vc_cols); | |
2755 | } | |
2756 | logo_shown = FBCON_LOGO_CANSHOW; | |
2757 | } | |
2758 | fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); | |
2759 | fbcon_redraw_softback(vc, p, lines); | |
2760 | fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); | |
2761 | return 0; | |
2762 | } | |
2763 | ||
2764 | if (!scrollback_phys_max) | |
2765 | return -ENOSYS; | |
2766 | ||
2767 | scrollback_old = scrollback_current; | |
2768 | scrollback_current -= lines; | |
2769 | if (scrollback_current < 0) | |
2770 | scrollback_current = 0; | |
2771 | else if (scrollback_current > scrollback_max) | |
2772 | scrollback_current = scrollback_max; | |
2773 | if (scrollback_current == scrollback_old) | |
2774 | return 0; | |
2775 | ||
2776 | if (fbcon_is_inactive(vc, info)) | |
2777 | return 0; | |
2778 | ||
2779 | fbcon_cursor(vc, CM_ERASE); | |
2780 | ||
2781 | offset = p->yscroll - scrollback_current; | |
2782 | limit = p->vrows; | |
2783 | switch (p->scrollmode) { | |
2784 | case SCROLL_WRAP_MOVE: | |
2785 | info->var.vmode |= FB_VMODE_YWRAP; | |
2786 | break; | |
2787 | case SCROLL_PAN_MOVE: | |
2788 | case SCROLL_PAN_REDRAW: | |
2789 | limit -= vc->vc_rows; | |
2790 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
2791 | break; | |
2792 | } | |
2793 | if (offset < 0) | |
2794 | offset += limit; | |
2795 | else if (offset >= limit) | |
2796 | offset -= limit; | |
e4fc2761 AD |
2797 | |
2798 | ops->var.xoffset = 0; | |
2799 | ops->var.yoffset = offset * vc->vc_font.height; | |
2800 | ops->update_start(info); | |
2801 | ||
1da177e4 LT |
2802 | if (!scrollback_current) |
2803 | fbcon_cursor(vc, CM_DRAW); | |
2804 | return 0; | |
2805 | } | |
2806 | ||
2807 | static int fbcon_set_origin(struct vc_data *vc) | |
2808 | { | |
2809 | if (softback_lines) | |
2810 | fbcon_scrolldelta(vc, softback_lines); | |
2811 | return 0; | |
2812 | } | |
2813 | ||
2814 | static void fbcon_suspended(struct fb_info *info) | |
2815 | { | |
2816 | struct vc_data *vc = NULL; | |
2817 | struct fbcon_ops *ops = info->fbcon_par; | |
2818 | ||
2819 | if (!ops || ops->currcon < 0) | |
2820 | return; | |
2821 | vc = vc_cons[ops->currcon].d; | |
2822 | ||
2823 | /* Clear cursor, restore saved data */ | |
2824 | fbcon_cursor(vc, CM_ERASE); | |
2825 | } | |
2826 | ||
2827 | static void fbcon_resumed(struct fb_info *info) | |
2828 | { | |
2829 | struct vc_data *vc; | |
2830 | struct fbcon_ops *ops = info->fbcon_par; | |
2831 | ||
2832 | if (!ops || ops->currcon < 0) | |
2833 | return; | |
2834 | vc = vc_cons[ops->currcon].d; | |
2835 | ||
2836 | update_screen(vc); | |
2837 | } | |
2838 | ||
2839 | static void fbcon_modechanged(struct fb_info *info) | |
2840 | { | |
2841 | struct fbcon_ops *ops = info->fbcon_par; | |
2842 | struct vc_data *vc; | |
2843 | struct display *p; | |
2844 | int rows, cols; | |
2845 | ||
2846 | if (!ops || ops->currcon < 0) | |
2847 | return; | |
2848 | vc = vc_cons[ops->currcon].d; | |
e4fc2761 AD |
2849 | if (vc->vc_mode != KD_TEXT || |
2850 | registered_fb[con2fb_map[ops->currcon]] != info) | |
1da177e4 LT |
2851 | return; |
2852 | ||
2853 | p = &fb_display[vc->vc_num]; | |
b73deed3 | 2854 | set_blitting_type(vc, info); |
1da177e4 LT |
2855 | |
2856 | if (CON_IS_VISIBLE(vc)) { | |
2857 | var_to_display(p, &info->var, info); | |
e4fc2761 AD |
2858 | cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); |
2859 | rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); | |
2860 | cols /= vc->vc_font.width; | |
2861 | rows /= vc->vc_font.height; | |
1da177e4 LT |
2862 | vc_resize(vc, cols, rows); |
2863 | updatescrollmode(p, info, vc); | |
2864 | scrollback_max = 0; | |
2865 | scrollback_current = 0; | |
4e1567d3 AD |
2866 | |
2867 | if (!fbcon_is_inactive(vc, info)) { | |
2868 | ops->var.xoffset = ops->var.yoffset = p->yscroll = 0; | |
2869 | ops->update_start(info); | |
2870 | } | |
2871 | ||
1da177e4 LT |
2872 | fbcon_set_palette(vc, color_table); |
2873 | update_screen(vc); | |
4d9c5b6e AD |
2874 | if (softback_buf) |
2875 | fbcon_update_softback(vc); | |
1da177e4 LT |
2876 | } |
2877 | } | |
2878 | ||
7726e9e1 AD |
2879 | static void fbcon_set_all_vcs(struct fb_info *info) |
2880 | { | |
2881 | struct fbcon_ops *ops = info->fbcon_par; | |
2882 | struct vc_data *vc; | |
2883 | struct display *p; | |
95d67bb1 | 2884 | int i, rows, cols, fg = -1; |
7726e9e1 AD |
2885 | |
2886 | if (!ops || ops->currcon < 0) | |
2887 | return; | |
2888 | ||
e614b18d | 2889 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
7726e9e1 AD |
2890 | vc = vc_cons[i].d; |
2891 | if (!vc || vc->vc_mode != KD_TEXT || | |
2892 | registered_fb[con2fb_map[i]] != info) | |
2893 | continue; | |
2894 | ||
95d67bb1 AD |
2895 | if (CON_IS_VISIBLE(vc)) { |
2896 | fg = i; | |
2897 | continue; | |
2898 | } | |
2899 | ||
7726e9e1 | 2900 | p = &fb_display[vc->vc_num]; |
b73deed3 | 2901 | set_blitting_type(vc, info); |
7726e9e1 | 2902 | var_to_display(p, &info->var, info); |
95d67bb1 AD |
2903 | cols = FBCON_SWAP(p->rotate, info->var.xres, info->var.yres); |
2904 | rows = FBCON_SWAP(p->rotate, info->var.yres, info->var.xres); | |
e4fc2761 AD |
2905 | cols /= vc->vc_font.width; |
2906 | rows /= vc->vc_font.height; | |
7726e9e1 | 2907 | vc_resize(vc, cols, rows); |
7726e9e1 | 2908 | } |
04a2fe57 | 2909 | |
95d67bb1 AD |
2910 | if (fg != -1) |
2911 | fbcon_modechanged(info); | |
7726e9e1 AD |
2912 | } |
2913 | ||
1da177e4 LT |
2914 | static int fbcon_mode_deleted(struct fb_info *info, |
2915 | struct fb_videomode *mode) | |
2916 | { | |
2917 | struct fb_info *fb_info; | |
2918 | struct display *p; | |
2919 | int i, j, found = 0; | |
2920 | ||
2921 | /* before deletion, ensure that mode is not in use */ | |
2922 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2923 | j = con2fb_map[i]; | |
2924 | if (j == -1) | |
2925 | continue; | |
2926 | fb_info = registered_fb[j]; | |
2927 | if (fb_info != info) | |
2928 | continue; | |
2929 | p = &fb_display[i]; | |
2930 | if (!p || !p->mode) | |
2931 | continue; | |
2932 | if (fb_mode_is_equal(p->mode, mode)) { | |
2933 | found = 1; | |
2934 | break; | |
2935 | } | |
2936 | } | |
2937 | return found; | |
2938 | } | |
2939 | ||
e614b18d AD |
2940 | static int fbcon_fb_unregistered(int idx) |
2941 | { | |
2942 | int i; | |
2943 | ||
2944 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2945 | if (con2fb_map[i] == idx) | |
2946 | con2fb_map[i] = -1; | |
2947 | } | |
2948 | ||
2949 | if (idx == info_idx) { | |
2950 | info_idx = -1; | |
2951 | ||
2952 | for (i = 0; i < FB_MAX; i++) { | |
2953 | if (registered_fb[i] != NULL) { | |
2954 | info_idx = i; | |
2955 | break; | |
2956 | } | |
2957 | } | |
2958 | } | |
2959 | ||
2960 | if (info_idx != -1) { | |
2961 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
2962 | if (con2fb_map[i] == -1) | |
2963 | con2fb_map[i] = info_idx; | |
2964 | } | |
2965 | } | |
2966 | ||
2967 | if (!num_registered_fb) | |
2968 | unregister_con_driver(&fb_con); | |
2969 | ||
2970 | return 0; | |
2971 | } | |
2972 | ||
1da177e4 LT |
2973 | static int fbcon_fb_registered(int idx) |
2974 | { | |
2975 | int ret = 0, i; | |
2976 | ||
2977 | if (info_idx == -1) { | |
e614b18d | 2978 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
2979 | if (con2fb_map_boot[i] == idx) { |
2980 | info_idx = idx; | |
2981 | break; | |
2982 | } | |
2983 | } | |
e614b18d | 2984 | |
1da177e4 LT |
2985 | if (info_idx != -1) |
2986 | ret = fbcon_takeover(1); | |
2987 | } else { | |
e614b18d | 2988 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
5428b044 AD |
2989 | if (con2fb_map_boot[i] == idx && |
2990 | con2fb_map[i] == -1) | |
1da177e4 LT |
2991 | set_con2fb_map(i, idx, 0); |
2992 | } | |
2993 | } | |
2994 | ||
2995 | return ret; | |
2996 | } | |
2997 | ||
2998 | static void fbcon_fb_blanked(struct fb_info *info, int blank) | |
2999 | { | |
3000 | struct fbcon_ops *ops = info->fbcon_par; | |
3001 | struct vc_data *vc; | |
3002 | ||
3003 | if (!ops || ops->currcon < 0) | |
3004 | return; | |
3005 | ||
3006 | vc = vc_cons[ops->currcon].d; | |
3007 | if (vc->vc_mode != KD_TEXT || | |
3008 | registered_fb[con2fb_map[ops->currcon]] != info) | |
3009 | return; | |
3010 | ||
3011 | if (CON_IS_VISIBLE(vc)) { | |
3012 | if (blank) | |
3013 | do_blank_screen(0); | |
3014 | else | |
3015 | do_unblank_screen(0); | |
3016 | } | |
3017 | ops->blank_state = blank; | |
3018 | } | |
3019 | ||
3020 | static void fbcon_new_modelist(struct fb_info *info) | |
3021 | { | |
3022 | int i; | |
3023 | struct vc_data *vc; | |
3024 | struct fb_var_screeninfo var; | |
9791d763 | 3025 | const struct fb_videomode *mode; |
1da177e4 | 3026 | |
e614b18d | 3027 | for (i = first_fb_vc; i <= last_fb_vc; i++) { |
1da177e4 LT |
3028 | if (registered_fb[con2fb_map[i]] != info) |
3029 | continue; | |
3030 | if (!fb_display[i].mode) | |
3031 | continue; | |
3032 | vc = vc_cons[i].d; | |
3033 | display_to_var(&var, &fb_display[i]); | |
8fb6567e MJ |
3034 | mode = fb_find_nearest_mode(fb_display[i].mode, |
3035 | &info->modelist); | |
1da177e4 LT |
3036 | fb_videomode_to_var(&var, mode); |
3037 | ||
3038 | if (vc) | |
3039 | fbcon_set_disp(info, &var, vc); | |
3040 | else | |
3041 | fbcon_preset_disp(info, &var, i); | |
3042 | ||
3043 | } | |
3044 | } | |
3045 | ||
38a3dc51 AD |
3046 | static void fbcon_get_requirement(struct fb_info *info, |
3047 | struct fb_blit_caps *caps) | |
3048 | { | |
3049 | struct vc_data *vc; | |
3050 | struct display *p; | |
3051 | int charcnt; | |
3052 | ||
3053 | if (caps->flags) { | |
3054 | int i; | |
3055 | ||
3056 | for (i = first_fb_vc; i <= last_fb_vc; i++) { | |
3057 | vc = vc_cons[i].d; | |
3058 | if (vc && vc->vc_mode == KD_TEXT) { | |
3059 | p = &fb_display[i]; | |
3060 | caps->x |= 1 << (vc->vc_font.width - 1); | |
3061 | caps->y |= 1 << (vc->vc_font.height - 1); | |
3062 | charcnt = (p->userfont) ? | |
3063 | FNTCHARCNT(p->fontdata) : 256; | |
3064 | if (caps->len < charcnt) | |
3065 | caps->len = charcnt; | |
3066 | } | |
3067 | } | |
3068 | } else { | |
3069 | vc = vc_cons[fg_console].d; | |
3070 | ||
3071 | if (vc && vc->vc_mode == KD_TEXT) { | |
3072 | p = &fb_display[fg_console]; | |
3073 | caps->x |= 1 << (vc->vc_font.width - 1); | |
3074 | caps->y |= 1 << (vc->vc_font.height - 1); | |
3075 | charcnt = (p->userfont) ? | |
3076 | FNTCHARCNT(p->fontdata) : 256; | |
3077 | if (caps->len < charcnt) | |
3078 | caps->len = charcnt; | |
3079 | } | |
3080 | } | |
3081 | } | |
3082 | ||
1da177e4 LT |
3083 | static int fbcon_event_notify(struct notifier_block *self, |
3084 | unsigned long action, void *data) | |
3085 | { | |
3086 | struct fb_event *event = data; | |
3087 | struct fb_info *info = event->info; | |
3088 | struct fb_videomode *mode; | |
3089 | struct fb_con2fbmap *con2fb; | |
38a3dc51 | 3090 | struct fb_blit_caps *caps; |
1da177e4 LT |
3091 | int ret = 0; |
3092 | ||
e614b18d AD |
3093 | /* |
3094 | * ignore all events except driver registration and deregistration | |
3095 | * if fbcon is not active | |
3096 | */ | |
3097 | if (fbcon_has_exited && !(action == FB_EVENT_FB_REGISTERED || | |
3098 | action == FB_EVENT_FB_UNREGISTERED)) | |
3099 | goto done; | |
3100 | ||
1da177e4 LT |
3101 | switch(action) { |
3102 | case FB_EVENT_SUSPEND: | |
3103 | fbcon_suspended(info); | |
3104 | break; | |
3105 | case FB_EVENT_RESUME: | |
3106 | fbcon_resumed(info); | |
3107 | break; | |
3108 | case FB_EVENT_MODE_CHANGE: | |
3109 | fbcon_modechanged(info); | |
3110 | break; | |
7726e9e1 AD |
3111 | case FB_EVENT_MODE_CHANGE_ALL: |
3112 | fbcon_set_all_vcs(info); | |
3113 | break; | |
1da177e4 LT |
3114 | case FB_EVENT_MODE_DELETE: |
3115 | mode = event->data; | |
3116 | ret = fbcon_mode_deleted(info, mode); | |
3117 | break; | |
3118 | case FB_EVENT_FB_REGISTERED: | |
3119 | ret = fbcon_fb_registered(info->node); | |
3120 | break; | |
e614b18d AD |
3121 | case FB_EVENT_FB_UNREGISTERED: |
3122 | ret = fbcon_fb_unregistered(info->node); | |
3123 | break; | |
1da177e4 LT |
3124 | case FB_EVENT_SET_CONSOLE_MAP: |
3125 | con2fb = event->data; | |
3126 | ret = set_con2fb_map(con2fb->console - 1, | |
3127 | con2fb->framebuffer, 1); | |
3128 | break; | |
3129 | case FB_EVENT_GET_CONSOLE_MAP: | |
3130 | con2fb = event->data; | |
3131 | con2fb->framebuffer = con2fb_map[con2fb->console - 1]; | |
3132 | break; | |
3133 | case FB_EVENT_BLANK: | |
3134 | fbcon_fb_blanked(info, *(int *)event->data); | |
3135 | break; | |
3136 | case FB_EVENT_NEW_MODELIST: | |
3137 | fbcon_new_modelist(info); | |
3138 | break; | |
38a3dc51 AD |
3139 | case FB_EVENT_GET_REQ: |
3140 | caps = event->data; | |
3141 | fbcon_get_requirement(info, caps); | |
3142 | break; | |
1da177e4 LT |
3143 | } |
3144 | ||
e614b18d | 3145 | done: |
1da177e4 LT |
3146 | return ret; |
3147 | } | |
3148 | ||
3149 | /* | |
3150 | * The console `switch' structure for the frame buffer based console | |
3151 | */ | |
3152 | ||
3153 | static const struct consw fb_con = { | |
3154 | .owner = THIS_MODULE, | |
3155 | .con_startup = fbcon_startup, | |
3156 | .con_init = fbcon_init, | |
3157 | .con_deinit = fbcon_deinit, | |
3158 | .con_clear = fbcon_clear, | |
3159 | .con_putc = fbcon_putc, | |
3160 | .con_putcs = fbcon_putcs, | |
3161 | .con_cursor = fbcon_cursor, | |
3162 | .con_scroll = fbcon_scroll, | |
3163 | .con_bmove = fbcon_bmove, | |
3164 | .con_switch = fbcon_switch, | |
3165 | .con_blank = fbcon_blank, | |
3166 | .con_font_set = fbcon_set_font, | |
3167 | .con_font_get = fbcon_get_font, | |
3168 | .con_font_default = fbcon_set_def_font, | |
3169 | .con_font_copy = fbcon_copy_font, | |
3170 | .con_set_palette = fbcon_set_palette, | |
3171 | .con_scrolldelta = fbcon_scrolldelta, | |
3172 | .con_set_origin = fbcon_set_origin, | |
3173 | .con_invert_region = fbcon_invert_region, | |
3174 | .con_screen_pos = fbcon_screen_pos, | |
3175 | .con_getxy = fbcon_getxy, | |
3176 | .con_resize = fbcon_resize, | |
3177 | }; | |
3178 | ||
3179 | static struct notifier_block fbcon_event_notifier = { | |
3180 | .notifier_call = fbcon_event_notify, | |
3181 | }; | |
3182 | ||
9a179176 AD |
3183 | static ssize_t store_rotate(struct class_device *class_device, |
3184 | const char *buf, size_t count) | |
3185 | { | |
3186 | struct fb_info *info; | |
3187 | int rotate, idx; | |
3188 | char **last = NULL; | |
3189 | ||
e614b18d AD |
3190 | if (fbcon_has_exited) |
3191 | return count; | |
3192 | ||
9a179176 AD |
3193 | acquire_console_sem(); |
3194 | idx = con2fb_map[fg_console]; | |
3195 | ||
3196 | if (idx == -1 || registered_fb[idx] == NULL) | |
3197 | goto err; | |
3198 | ||
3199 | info = registered_fb[idx]; | |
3200 | rotate = simple_strtoul(buf, last, 0); | |
3201 | fbcon_rotate(info, rotate); | |
3202 | err: | |
3203 | release_console_sem(); | |
3204 | return count; | |
3205 | } | |
3206 | ||
3207 | static ssize_t store_rotate_all(struct class_device *class_device, | |
3208 | const char *buf, size_t count) | |
3209 | { | |
3210 | struct fb_info *info; | |
3211 | int rotate, idx; | |
3212 | char **last = NULL; | |
3213 | ||
e614b18d AD |
3214 | if (fbcon_has_exited) |
3215 | return count; | |
3216 | ||
9a179176 AD |
3217 | acquire_console_sem(); |
3218 | idx = con2fb_map[fg_console]; | |
3219 | ||
3220 | if (idx == -1 || registered_fb[idx] == NULL) | |
3221 | goto err; | |
3222 | ||
3223 | info = registered_fb[idx]; | |
3224 | rotate = simple_strtoul(buf, last, 0); | |
3225 | fbcon_rotate_all(info, rotate); | |
3226 | err: | |
3227 | release_console_sem(); | |
3228 | return count; | |
3229 | } | |
3230 | ||
3231 | static ssize_t show_rotate(struct class_device *class_device, char *buf) | |
3232 | { | |
3233 | struct fb_info *info; | |
3234 | int rotate = 0, idx; | |
3235 | ||
e614b18d AD |
3236 | if (fbcon_has_exited) |
3237 | return 0; | |
3238 | ||
9a179176 AD |
3239 | acquire_console_sem(); |
3240 | idx = con2fb_map[fg_console]; | |
3241 | ||
3242 | if (idx == -1 || registered_fb[idx] == NULL) | |
3243 | goto err; | |
3244 | ||
3245 | info = registered_fb[idx]; | |
3246 | rotate = fbcon_get_rotate(info); | |
3247 | err: | |
3248 | release_console_sem(); | |
3249 | return snprintf(buf, PAGE_SIZE, "%d\n", rotate); | |
3250 | } | |
3251 | ||
3252 | static struct class_device_attribute class_device_attrs[] = { | |
3253 | __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), | |
3254 | __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all), | |
3255 | }; | |
3256 | ||
3257 | static int fbcon_init_class_device(void) | |
3258 | { | |
0a727dea AD |
3259 | int i, error = 0; |
3260 | ||
3261 | fbcon_has_sysfs = 1; | |
3262 | ||
3263 | for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) { | |
3264 | error = class_device_create_file(fbcon_class_device, | |
3265 | &class_device_attrs[i]); | |
3266 | ||
3267 | if (error) | |
3268 | break; | |
3269 | } | |
3270 | ||
3271 | if (error) { | |
3272 | while (--i >= 0) | |
3273 | class_device_remove_file(fbcon_class_device, | |
3274 | &class_device_attrs[i]); | |
3275 | ||
3276 | fbcon_has_sysfs = 0; | |
3277 | } | |
9a179176 | 3278 | |
9a179176 AD |
3279 | return 0; |
3280 | } | |
3281 | ||
5428b044 | 3282 | static void fbcon_start(void) |
1da177e4 | 3283 | { |
5428b044 AD |
3284 | if (num_registered_fb) { |
3285 | int i; | |
9a179176 | 3286 | |
5428b044 | 3287 | acquire_console_sem(); |
1da177e4 | 3288 | |
1da177e4 LT |
3289 | for (i = 0; i < FB_MAX; i++) { |
3290 | if (registered_fb[i] != NULL) { | |
3291 | info_idx = i; | |
3292 | break; | |
3293 | } | |
3294 | } | |
5428b044 AD |
3295 | |
3296 | release_console_sem(); | |
1da177e4 LT |
3297 | fbcon_takeover(0); |
3298 | } | |
9a179176 AD |
3299 | } |
3300 | ||
5428b044 | 3301 | static void fbcon_exit(void) |
9a179176 | 3302 | { |
e55186fe AD |
3303 | struct fb_info *info; |
3304 | int i, j, mapped; | |
3305 | ||
e614b18d AD |
3306 | if (fbcon_has_exited) |
3307 | return; | |
3308 | ||
e55186fe | 3309 | #ifdef CONFIG_ATARI |
956295d5 | 3310 | free_irq(IRQ_AUTO_4, fb_vbl_handler); |
e55186fe AD |
3311 | #endif |
3312 | #ifdef CONFIG_MAC | |
3313 | if (MACH_IS_MAC && vbl_detected) | |
956295d5 | 3314 | free_irq(IRQ_MAC_VBL, fb_vbl_handler); |
e55186fe AD |
3315 | #endif |
3316 | ||
3317 | kfree((void *)softback_buf); | |
5428b044 | 3318 | softback_buf = 0UL; |
e55186fe AD |
3319 | |
3320 | for (i = 0; i < FB_MAX; i++) { | |
3321 | mapped = 0; | |
3322 | info = registered_fb[i]; | |
3323 | ||
3324 | if (info == NULL) | |
3325 | continue; | |
3326 | ||
e614b18d AD |
3327 | for (j = first_fb_vc; j <= last_fb_vc; j++) { |
3328 | if (con2fb_map[j] == i) | |
e55186fe | 3329 | mapped = 1; |
e55186fe AD |
3330 | } |
3331 | ||
3332 | if (mapped) { | |
3333 | if (info->fbops->fb_release) | |
3334 | info->fbops->fb_release(info, 0); | |
3335 | module_put(info->fbops->owner); | |
5428b044 AD |
3336 | |
3337 | if (info->fbcon_par) { | |
e299dd4d DJ |
3338 | struct fbcon_ops *ops = info->fbcon_par; |
3339 | ||
5428b044 | 3340 | fbcon_del_cursor_timer(info); |
e299dd4d | 3341 | kfree(ops->cursor_src); |
5428b044 AD |
3342 | kfree(info->fbcon_par); |
3343 | info->fbcon_par = NULL; | |
3344 | } | |
3345 | ||
3346 | if (info->queue.func == fb_flashcursor) | |
3347 | info->queue.func = NULL; | |
e55186fe AD |
3348 | } |
3349 | } | |
3350 | ||
e614b18d | 3351 | fbcon_has_exited = 1; |
5428b044 AD |
3352 | } |
3353 | ||
3354 | static int __init fb_console_init(void) | |
3355 | { | |
3356 | int i; | |
3357 | ||
3358 | acquire_console_sem(); | |
3359 | fb_register_client(&fbcon_event_notifier); | |
3360 | fbcon_class_device = | |
5bd42536 | 3361 | class_device_create(fb_class, NULL, MKDEV(0, 0), NULL, "fbcon"); |
5428b044 AD |
3362 | |
3363 | if (IS_ERR(fbcon_class_device)) { | |
3364 | printk(KERN_WARNING "Unable to create class_device " | |
3365 | "for fbcon; errno = %ld\n", | |
3366 | PTR_ERR(fbcon_class_device)); | |
3367 | fbcon_class_device = NULL; | |
3368 | } else | |
3369 | fbcon_init_class_device(); | |
3370 | ||
3371 | for (i = 0; i < MAX_NR_CONSOLES; i++) | |
3372 | con2fb_map[i] = -1; | |
3373 | ||
3374 | release_console_sem(); | |
3375 | fbcon_start(); | |
3376 | return 0; | |
3377 | } | |
3378 | ||
3379 | module_init(fb_console_init); | |
3380 | ||
3381 | #ifdef MODULE | |
3382 | ||
e614b18d | 3383 | static void __exit fbcon_deinit_class_device(void) |
5428b044 AD |
3384 | { |
3385 | int i; | |
3386 | ||
0a727dea AD |
3387 | if (fbcon_has_sysfs) { |
3388 | for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) | |
3389 | class_device_remove_file(fbcon_class_device, | |
3390 | &class_device_attrs[i]); | |
3391 | ||
3392 | fbcon_has_sysfs = 0; | |
3393 | } | |
9a179176 AD |
3394 | } |
3395 | ||
1da177e4 LT |
3396 | static void __exit fb_console_exit(void) |
3397 | { | |
3398 | acquire_console_sem(); | |
3399 | fb_unregister_client(&fbcon_event_notifier); | |
5428b044 | 3400 | fbcon_deinit_class_device(); |
5bd42536 | 3401 | class_device_destroy(fb_class, MKDEV(0, 0)); |
e614b18d | 3402 | fbcon_exit(); |
1da177e4 | 3403 | release_console_sem(); |
e614b18d | 3404 | unregister_con_driver(&fb_con); |
1da177e4 LT |
3405 | } |
3406 | ||
3407 | module_exit(fb_console_exit); | |
3408 | ||
3409 | #endif | |
3410 | ||
3411 | MODULE_LICENSE("GPL"); |