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backup: Switch backup_do_cow() to byte-based
[qemu/kevin.git] / ui / console.c
blobd2d3534c4929ff55e9411ec8c104b9c7269d4c16
1 /*
2 * QEMU graphical console
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "qemu/osdep.h"
25 #include "qemu-common.h"
26 #include "ui/console.h"
27 #include "hw/qdev-core.h"
28 #include "qemu/timer.h"
29 #include "qmp-commands.h"
30 #include "chardev/char-fe.h"
31 #include "trace.h"
32 #include "exec/memory.h"
33
34 #define DEFAULT_BACKSCROLL 512
35 #define CONSOLE_CURSOR_PERIOD 500
36
37 typedef struct TextAttributes {
38 uint8_t fgcol:4;
39 uint8_t bgcol:4;
40 uint8_t bold:1;
41 uint8_t uline:1;
42 uint8_t blink:1;
43 uint8_t invers:1;
44 uint8_t unvisible:1;
45 } TextAttributes;
46
47 typedef struct TextCell {
48 uint8_t ch;
49 TextAttributes t_attrib;
50 } TextCell;
51
52 #define MAX_ESC_PARAMS 3
53
54 enum TTYState {
55 TTY_STATE_NORM,
56 TTY_STATE_ESC,
57 TTY_STATE_CSI,
58 };
59
60 typedef struct QEMUFIFO {
61 uint8_t *buf;
62 int buf_size;
63 int count, wptr, rptr;
64 } QEMUFIFO;
65
66 static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
67 {
68 int l, len;
69
70 l = f->buf_size - f->count;
71 if (len1 > l)
72 len1 = l;
73 len = len1;
74 while (len > 0) {
75 l = f->buf_size - f->wptr;
76 if (l > len)
77 l = len;
78 memcpy(f->buf + f->wptr, buf, l);
79 f->wptr += l;
80 if (f->wptr >= f->buf_size)
81 f->wptr = 0;
82 buf += l;
83 len -= l;
84 }
85 f->count += len1;
86 return len1;
87 }
88
89 static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
90 {
91 int l, len;
92
93 if (len1 > f->count)
94 len1 = f->count;
95 len = len1;
96 while (len > 0) {
97 l = f->buf_size - f->rptr;
98 if (l > len)
99 l = len;
100 memcpy(buf, f->buf + f->rptr, l);
101 f->rptr += l;
102 if (f->rptr >= f->buf_size)
103 f->rptr = 0;
104 buf += l;
105 len -= l;
106 }
107 f->count -= len1;
108 return len1;
109 }
110
111 typedef enum {
112 GRAPHIC_CONSOLE,
113 TEXT_CONSOLE,
114 TEXT_CONSOLE_FIXED_SIZE
115 } console_type_t;
116
117 struct QemuConsole {
118 Object parent;
119
120 int index;
121 console_type_t console_type;
122 DisplayState *ds;
123 DisplaySurface *surface;
124 int dcls;
125 DisplayChangeListener *gl;
126 bool gl_block;
127 int window_id;
128
129 /* Graphic console state. */
130 Object *device;
131 uint32_t head;
132 QemuUIInfo ui_info;
133 QEMUTimer *ui_timer;
134 const GraphicHwOps *hw_ops;
135 void *hw;
136
137 /* Text console state */
138 int width;
139 int height;
140 int total_height;
141 int backscroll_height;
142 int x, y;
143 int x_saved, y_saved;
144 int y_displayed;
145 int y_base;
146 TextAttributes t_attrib_default; /* default text attributes */
147 TextAttributes t_attrib; /* currently active text attributes */
148 TextCell *cells;
149 int text_x[2], text_y[2], cursor_invalidate;
150 int echo;
151
152 int update_x0;
153 int update_y0;
154 int update_x1;
155 int update_y1;
156
157 enum TTYState state;
158 int esc_params[MAX_ESC_PARAMS];
159 int nb_esc_params;
160
161 Chardev *chr;
162 /* fifo for key pressed */
163 QEMUFIFO out_fifo;
164 uint8_t out_fifo_buf[16];
165 QEMUTimer *kbd_timer;
166 };
167
168 struct DisplayState {
169 QEMUTimer *gui_timer;
170 uint64_t last_update;
171 uint64_t update_interval;
172 bool refreshing;
173 bool have_gfx;
174 bool have_text;
175
176 QLIST_HEAD(, DisplayChangeListener) listeners;
177 };
178
179 static DisplayState *display_state;
180 static QemuConsole *active_console;
181 static QemuConsole **consoles;
182 static int nb_consoles = 0;
183 static bool cursor_visible_phase;
184 static QEMUTimer *cursor_timer;
185
186 static void text_console_do_init(Chardev *chr, DisplayState *ds);
187 static void dpy_refresh(DisplayState *s);
188 static DisplayState *get_alloc_displaystate(void);
189 static void text_console_update_cursor_timer(void);
190 static void text_console_update_cursor(void *opaque);
191
192 static void gui_update(void *opaque)
193 {
194 uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
195 uint64_t dcl_interval;
196 DisplayState *ds = opaque;
197 DisplayChangeListener *dcl;
198 int i;
199
200 ds->refreshing = true;
201 dpy_refresh(ds);
202 ds->refreshing = false;
203
204 QLIST_FOREACH(dcl, &ds->listeners, next) {
205 dcl_interval = dcl->update_interval ?
206 dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
207 if (interval > dcl_interval) {
208 interval = dcl_interval;
209 }
210 }
211 if (ds->update_interval != interval) {
212 ds->update_interval = interval;
213 for (i = 0; i < nb_consoles; i++) {
214 if (consoles[i]->hw_ops->update_interval) {
215 consoles[i]->hw_ops->update_interval(consoles[i]->hw, interval);
216 }
217 }
218 trace_console_refresh(interval);
219 }
220 ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
221 timer_mod(ds->gui_timer, ds->last_update + interval);
222 }
223
224 static void gui_setup_refresh(DisplayState *ds)
225 {
226 DisplayChangeListener *dcl;
227 bool need_timer = false;
228 bool have_gfx = false;
229 bool have_text = false;
230
231 QLIST_FOREACH(dcl, &ds->listeners, next) {
232 if (dcl->ops->dpy_refresh != NULL) {
233 need_timer = true;
234 }
235 if (dcl->ops->dpy_gfx_update != NULL) {
236 have_gfx = true;
237 }
238 if (dcl->ops->dpy_text_update != NULL) {
239 have_text = true;
240 }
241 }
242
243 if (need_timer && ds->gui_timer == NULL) {
244 ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
245 timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
246 }
247 if (!need_timer && ds->gui_timer != NULL) {
248 timer_del(ds->gui_timer);
249 timer_free(ds->gui_timer);
250 ds->gui_timer = NULL;
251 }
252
253 ds->have_gfx = have_gfx;
254 ds->have_text = have_text;
255 }
256
257 void graphic_hw_update(QemuConsole *con)
258 {
259 if (!con) {
260 con = active_console;
261 }
262 if (con && con->hw_ops->gfx_update) {
263 con->hw_ops->gfx_update(con->hw);
264 }
265 }
266
267 void graphic_hw_gl_block(QemuConsole *con, bool block)
268 {
269 assert(con != NULL);
270
271 con->gl_block = block;
272 if (con->hw_ops->gl_block) {
273 con->hw_ops->gl_block(con->hw, block);
274 }
275 }
276
277 int qemu_console_get_window_id(QemuConsole *con)
278 {
279 return con->window_id;
280 }
281
282 void qemu_console_set_window_id(QemuConsole *con, int window_id)
283 {
284 con->window_id = window_id;
285 }
286
287 void graphic_hw_invalidate(QemuConsole *con)
288 {
289 if (!con) {
290 con = active_console;
291 }
292 if (con && con->hw_ops->invalidate) {
293 con->hw_ops->invalidate(con->hw);
294 }
295 }
296
297 static void ppm_save(const char *filename, DisplaySurface *ds,
298 Error **errp)
299 {
300 int width = pixman_image_get_width(ds->image);
301 int height = pixman_image_get_height(ds->image);
302 int fd;
303 FILE *f;
304 int y;
305 int ret;
306 pixman_image_t *linebuf;
307
308 trace_ppm_save(filename, ds);
309 fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
310 if (fd == -1) {
311 error_setg(errp, "failed to open file '%s': %s", filename,
312 strerror(errno));
313 return;
314 }
315 f = fdopen(fd, "wb");
316 ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
317 if (ret < 0) {
318 linebuf = NULL;
319 goto write_err;
320 }
321 linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
322 for (y = 0; y < height; y++) {
323 qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
324 clearerr(f);
325 ret = fwrite(pixman_image_get_data(linebuf), 1,
326 pixman_image_get_stride(linebuf), f);
327 (void)ret;
328 if (ferror(f)) {
329 goto write_err;
330 }
331 }
332
333 out:
334 qemu_pixman_image_unref(linebuf);
335 fclose(f);
336 return;
337
338 write_err:
339 error_setg(errp, "failed to write to file '%s': %s", filename,
340 strerror(errno));
341 unlink(filename);
342 goto out;
343 }
344
345 void qmp_screendump(const char *filename, Error **errp)
346 {
347 QemuConsole *con = qemu_console_lookup_by_index(0);
348 DisplaySurface *surface;
349
350 if (con == NULL) {
351 error_setg(errp, "There is no QemuConsole I can screendump from.");
352 return;
353 }
354
355 graphic_hw_update(con);
356 surface = qemu_console_surface(con);
357 ppm_save(filename, surface, errp);
358 }
359
360 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
361 {
362 if (!con) {
363 con = active_console;
364 }
365 if (con && con->hw_ops->text_update) {
366 con->hw_ops->text_update(con->hw, chardata);
367 }
368 }
369
370 static void vga_fill_rect(QemuConsole *con,
371 int posx, int posy, int width, int height,
372 pixman_color_t color)
373 {
374 DisplaySurface *surface = qemu_console_surface(con);
375 pixman_rectangle16_t rect = {
376 .x = posx, .y = posy, .width = width, .height = height
377 };
378
379 pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
380 &color, 1, &rect);
381 }
382
383 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
384 static void vga_bitblt(QemuConsole *con,
385 int xs, int ys, int xd, int yd, int w, int h)
386 {
387 DisplaySurface *surface = qemu_console_surface(con);
388
389 pixman_image_composite(PIXMAN_OP_SRC,
390 surface->image, NULL, surface->image,
391 xs, ys, 0, 0, xd, yd, w, h);
392 }
393
394 /***********************************************************/
395 /* basic char display */
396
397 #define FONT_HEIGHT 16
398 #define FONT_WIDTH 8
399
400 #include "vgafont.h"
401
402 #define QEMU_RGB(r, g, b) \
403 { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
404
405 static const pixman_color_t color_table_rgb[2][8] = {
406 { /* dark */
407 [QEMU_COLOR_BLACK] = QEMU_RGB(0x00, 0x00, 0x00), /* black */
408 [QEMU_COLOR_BLUE] = QEMU_RGB(0x00, 0x00, 0xaa), /* blue */
409 [QEMU_COLOR_GREEN] = QEMU_RGB(0x00, 0xaa, 0x00), /* green */
410 [QEMU_COLOR_CYAN] = QEMU_RGB(0x00, 0xaa, 0xaa), /* cyan */
411 [QEMU_COLOR_RED] = QEMU_RGB(0xaa, 0x00, 0x00), /* red */
412 [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa), /* magenta */
413 [QEMU_COLOR_YELLOW] = QEMU_RGB(0xaa, 0xaa, 0x00), /* yellow */
414 [QEMU_COLOR_WHITE] = QEMU_RGB(0xaa, 0xaa, 0xaa), /* white */
415 },
416 { /* bright */
417 [QEMU_COLOR_BLACK] = QEMU_RGB(0x00, 0x00, 0x00), /* black */
418 [QEMU_COLOR_BLUE] = QEMU_RGB(0x00, 0x00, 0xff), /* blue */
419 [QEMU_COLOR_GREEN] = QEMU_RGB(0x00, 0xff, 0x00), /* green */
420 [QEMU_COLOR_CYAN] = QEMU_RGB(0x00, 0xff, 0xff), /* cyan */
421 [QEMU_COLOR_RED] = QEMU_RGB(0xff, 0x00, 0x00), /* red */
422 [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff), /* magenta */
423 [QEMU_COLOR_YELLOW] = QEMU_RGB(0xff, 0xff, 0x00), /* yellow */
424 [QEMU_COLOR_WHITE] = QEMU_RGB(0xff, 0xff, 0xff), /* white */
425 }
426 };
427
428 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
429 TextAttributes *t_attrib)
430 {
431 static pixman_image_t *glyphs[256];
432 DisplaySurface *surface = qemu_console_surface(s);
433 pixman_color_t fgcol, bgcol;
434
435 if (t_attrib->invers) {
436 bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
437 fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
438 } else {
439 fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
440 bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
441 }
442
443 if (!glyphs[ch]) {
444 glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
445 }
446 qemu_pixman_glyph_render(glyphs[ch], surface->image,
447 &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
448 }
449
450 static void text_console_resize(QemuConsole *s)
451 {
452 TextCell *cells, *c, *c1;
453 int w1, x, y, last_width;
454
455 last_width = s->width;
456 s->width = surface_width(s->surface) / FONT_WIDTH;
457 s->height = surface_height(s->surface) / FONT_HEIGHT;
458
459 w1 = last_width;
460 if (s->width < w1)
461 w1 = s->width;
462
463 cells = g_new(TextCell, s->width * s->total_height);
464 for(y = 0; y < s->total_height; y++) {
465 c = &cells[y * s->width];
466 if (w1 > 0) {
467 c1 = &s->cells[y * last_width];
468 for(x = 0; x < w1; x++) {
469 *c++ = *c1++;
470 }
471 }
472 for(x = w1; x < s->width; x++) {
473 c->ch = ' ';
474 c->t_attrib = s->t_attrib_default;
475 c++;
476 }
477 }
478 g_free(s->cells);
479 s->cells = cells;
480 }
481
482 static inline void text_update_xy(QemuConsole *s, int x, int y)
483 {
484 s->text_x[0] = MIN(s->text_x[0], x);
485 s->text_x[1] = MAX(s->text_x[1], x);
486 s->text_y[0] = MIN(s->text_y[0], y);
487 s->text_y[1] = MAX(s->text_y[1], y);
488 }
489
490 static void invalidate_xy(QemuConsole *s, int x, int y)
491 {
492 if (!qemu_console_is_visible(s)) {
493 return;
494 }
495 if (s->update_x0 > x * FONT_WIDTH)
496 s->update_x0 = x * FONT_WIDTH;
497 if (s->update_y0 > y * FONT_HEIGHT)
498 s->update_y0 = y * FONT_HEIGHT;
499 if (s->update_x1 < (x + 1) * FONT_WIDTH)
500 s->update_x1 = (x + 1) * FONT_WIDTH;
501 if (s->update_y1 < (y + 1) * FONT_HEIGHT)
502 s->update_y1 = (y + 1) * FONT_HEIGHT;
503 }
504
505 static void update_xy(QemuConsole *s, int x, int y)
506 {
507 TextCell *c;
508 int y1, y2;
509
510 if (s->ds->have_text) {
511 text_update_xy(s, x, y);
512 }
513
514 y1 = (s->y_base + y) % s->total_height;
515 y2 = y1 - s->y_displayed;
516 if (y2 < 0) {
517 y2 += s->total_height;
518 }
519 if (y2 < s->height) {
520 c = &s->cells[y1 * s->width + x];
521 vga_putcharxy(s, x, y2, c->ch,
522 &(c->t_attrib));
523 invalidate_xy(s, x, y2);
524 }
525 }
526
527 static void console_show_cursor(QemuConsole *s, int show)
528 {
529 TextCell *c;
530 int y, y1;
531 int x = s->x;
532
533 if (s->ds->have_text) {
534 s->cursor_invalidate = 1;
535 }
536
537 if (x >= s->width) {
538 x = s->width - 1;
539 }
540 y1 = (s->y_base + s->y) % s->total_height;
541 y = y1 - s->y_displayed;
542 if (y < 0) {
543 y += s->total_height;
544 }
545 if (y < s->height) {
546 c = &s->cells[y1 * s->width + x];
547 if (show && cursor_visible_phase) {
548 TextAttributes t_attrib = s->t_attrib_default;
549 t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
550 vga_putcharxy(s, x, y, c->ch, &t_attrib);
551 } else {
552 vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
553 }
554 invalidate_xy(s, x, y);
555 }
556 }
557
558 static void console_refresh(QemuConsole *s)
559 {
560 DisplaySurface *surface = qemu_console_surface(s);
561 TextCell *c;
562 int x, y, y1;
563
564 if (s->ds->have_text) {
565 s->text_x[0] = 0;
566 s->text_y[0] = 0;
567 s->text_x[1] = s->width - 1;
568 s->text_y[1] = s->height - 1;
569 s->cursor_invalidate = 1;
570 }
571
572 vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
573 color_table_rgb[0][QEMU_COLOR_BLACK]);
574 y1 = s->y_displayed;
575 for (y = 0; y < s->height; y++) {
576 c = s->cells + y1 * s->width;
577 for (x = 0; x < s->width; x++) {
578 vga_putcharxy(s, x, y, c->ch,
579 &(c->t_attrib));
580 c++;
581 }
582 if (++y1 == s->total_height) {
583 y1 = 0;
584 }
585 }
586 console_show_cursor(s, 1);
587 dpy_gfx_update(s, 0, 0,
588 surface_width(surface), surface_height(surface));
589 }
590
591 static void console_scroll(QemuConsole *s, int ydelta)
592 {
593 int i, y1;
594
595 if (ydelta > 0) {
596 for(i = 0; i < ydelta; i++) {
597 if (s->y_displayed == s->y_base)
598 break;
599 if (++s->y_displayed == s->total_height)
600 s->y_displayed = 0;
601 }
602 } else {
603 ydelta = -ydelta;
604 i = s->backscroll_height;
605 if (i > s->total_height - s->height)
606 i = s->total_height - s->height;
607 y1 = s->y_base - i;
608 if (y1 < 0)
609 y1 += s->total_height;
610 for(i = 0; i < ydelta; i++) {
611 if (s->y_displayed == y1)
612 break;
613 if (--s->y_displayed < 0)
614 s->y_displayed = s->total_height - 1;
615 }
616 }
617 console_refresh(s);
618 }
619
620 static void console_put_lf(QemuConsole *s)
621 {
622 TextCell *c;
623 int x, y1;
624
625 s->y++;
626 if (s->y >= s->height) {
627 s->y = s->height - 1;
628
629 if (s->y_displayed == s->y_base) {
630 if (++s->y_displayed == s->total_height)
631 s->y_displayed = 0;
632 }
633 if (++s->y_base == s->total_height)
634 s->y_base = 0;
635 if (s->backscroll_height < s->total_height)
636 s->backscroll_height++;
637 y1 = (s->y_base + s->height - 1) % s->total_height;
638 c = &s->cells[y1 * s->width];
639 for(x = 0; x < s->width; x++) {
640 c->ch = ' ';
641 c->t_attrib = s->t_attrib_default;
642 c++;
643 }
644 if (s->y_displayed == s->y_base) {
645 if (s->ds->have_text) {
646 s->text_x[0] = 0;
647 s->text_y[0] = 0;
648 s->text_x[1] = s->width - 1;
649 s->text_y[1] = s->height - 1;
650 }
651
652 vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
653 s->width * FONT_WIDTH,
654 (s->height - 1) * FONT_HEIGHT);
655 vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
656 s->width * FONT_WIDTH, FONT_HEIGHT,
657 color_table_rgb[0][s->t_attrib_default.bgcol]);
658 s->update_x0 = 0;
659 s->update_y0 = 0;
660 s->update_x1 = s->width * FONT_WIDTH;
661 s->update_y1 = s->height * FONT_HEIGHT;
662 }
663 }
664 }
665
666 /* Set console attributes depending on the current escape codes.
667 * NOTE: I know this code is not very efficient (checking every color for it
668 * self) but it is more readable and better maintainable.
669 */
670 static void console_handle_escape(QemuConsole *s)
671 {
672 int i;
673
674 for (i=0; i<s->nb_esc_params; i++) {
675 switch (s->esc_params[i]) {
676 case 0: /* reset all console attributes to default */
677 s->t_attrib = s->t_attrib_default;
678 break;
679 case 1:
680 s->t_attrib.bold = 1;
681 break;
682 case 4:
683 s->t_attrib.uline = 1;
684 break;
685 case 5:
686 s->t_attrib.blink = 1;
687 break;
688 case 7:
689 s->t_attrib.invers = 1;
690 break;
691 case 8:
692 s->t_attrib.unvisible = 1;
693 break;
694 case 22:
695 s->t_attrib.bold = 0;
696 break;
697 case 24:
698 s->t_attrib.uline = 0;
699 break;
700 case 25:
701 s->t_attrib.blink = 0;
702 break;
703 case 27:
704 s->t_attrib.invers = 0;
705 break;
706 case 28:
707 s->t_attrib.unvisible = 0;
708 break;
709 /* set foreground color */
710 case 30:
711 s->t_attrib.fgcol = QEMU_COLOR_BLACK;
712 break;
713 case 31:
714 s->t_attrib.fgcol = QEMU_COLOR_RED;
715 break;
716 case 32:
717 s->t_attrib.fgcol = QEMU_COLOR_GREEN;
718 break;
719 case 33:
720 s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
721 break;
722 case 34:
723 s->t_attrib.fgcol = QEMU_COLOR_BLUE;
724 break;
725 case 35:
726 s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
727 break;
728 case 36:
729 s->t_attrib.fgcol = QEMU_COLOR_CYAN;
730 break;
731 case 37:
732 s->t_attrib.fgcol = QEMU_COLOR_WHITE;
733 break;
734 /* set background color */
735 case 40:
736 s->t_attrib.bgcol = QEMU_COLOR_BLACK;
737 break;
738 case 41:
739 s->t_attrib.bgcol = QEMU_COLOR_RED;
740 break;
741 case 42:
742 s->t_attrib.bgcol = QEMU_COLOR_GREEN;
743 break;
744 case 43:
745 s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
746 break;
747 case 44:
748 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
749 break;
750 case 45:
751 s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
752 break;
753 case 46:
754 s->t_attrib.bgcol = QEMU_COLOR_CYAN;
755 break;
756 case 47:
757 s->t_attrib.bgcol = QEMU_COLOR_WHITE;
758 break;
759 }
760 }
761 }
762
763 static void console_clear_xy(QemuConsole *s, int x, int y)
764 {
765 int y1 = (s->y_base + y) % s->total_height;
766 TextCell *c = &s->cells[y1 * s->width + x];
767 c->ch = ' ';
768 c->t_attrib = s->t_attrib_default;
769 update_xy(s, x, y);
770 }
771
772 static void console_put_one(QemuConsole *s, int ch)
773 {
774 TextCell *c;
775 int y1;
776 if (s->x >= s->width) {
777 /* line wrap */
778 s->x = 0;
779 console_put_lf(s);
780 }
781 y1 = (s->y_base + s->y) % s->total_height;
782 c = &s->cells[y1 * s->width + s->x];
783 c->ch = ch;
784 c->t_attrib = s->t_attrib;
785 update_xy(s, s->x, s->y);
786 s->x++;
787 }
788
789 static void console_respond_str(QemuConsole *s, const char *buf)
790 {
791 while (*buf) {
792 console_put_one(s, *buf);
793 buf++;
794 }
795 }
796
797 /* set cursor, checking bounds */
798 static void set_cursor(QemuConsole *s, int x, int y)
799 {
800 if (x < 0) {
801 x = 0;
802 }
803 if (y < 0) {
804 y = 0;
805 }
806 if (y >= s->height) {
807 y = s->height - 1;
808 }
809 if (x >= s->width) {
810 x = s->width - 1;
811 }
812
813 s->x = x;
814 s->y = y;
815 }
816
817 static void console_putchar(QemuConsole *s, int ch)
818 {
819 int i;
820 int x, y;
821 char response[40];
822
823 switch(s->state) {
824 case TTY_STATE_NORM:
825 switch(ch) {
826 case '\r': /* carriage return */
827 s->x = 0;
828 break;
829 case '\n': /* newline */
830 console_put_lf(s);
831 break;
832 case '\b': /* backspace */
833 if (s->x > 0)
834 s->x--;
835 break;
836 case '\t': /* tabspace */
837 if (s->x + (8 - (s->x % 8)) > s->width) {
838 s->x = 0;
839 console_put_lf(s);
840 } else {
841 s->x = s->x + (8 - (s->x % 8));
842 }
843 break;
844 case '\a': /* alert aka. bell */
845 /* TODO: has to be implemented */
846 break;
847 case 14:
848 /* SI (shift in), character set 0 (ignored) */
849 break;
850 case 15:
851 /* SO (shift out), character set 1 (ignored) */
852 break;
853 case 27: /* esc (introducing an escape sequence) */
854 s->state = TTY_STATE_ESC;
855 break;
856 default:
857 console_put_one(s, ch);
858 break;
859 }
860 break;
861 case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
862 if (ch == '[') {
863 for(i=0;i<MAX_ESC_PARAMS;i++)
864 s->esc_params[i] = 0;
865 s->nb_esc_params = 0;
866 s->state = TTY_STATE_CSI;
867 } else {
868 s->state = TTY_STATE_NORM;
869 }
870 break;
871 case TTY_STATE_CSI: /* handle escape sequence parameters */
872 if (ch >= '0' && ch <= '9') {
873 if (s->nb_esc_params < MAX_ESC_PARAMS) {
874 int *param = &s->esc_params[s->nb_esc_params];
875 int digit = (ch - '0');
876
877 *param = (*param <= (INT_MAX - digit) / 10) ?
878 *param * 10 + digit : INT_MAX;
879 }
880 } else {
881 if (s->nb_esc_params < MAX_ESC_PARAMS)
882 s->nb_esc_params++;
883 if (ch == ';')
884 break;
885 trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
886 ch, s->nb_esc_params);
887 s->state = TTY_STATE_NORM;
888 switch(ch) {
889 case 'A':
890 /* move cursor up */
891 if (s->esc_params[0] == 0) {
892 s->esc_params[0] = 1;
893 }
894 set_cursor(s, s->x, s->y - s->esc_params[0]);
895 break;
896 case 'B':
897 /* move cursor down */
898 if (s->esc_params[0] == 0) {
899 s->esc_params[0] = 1;
900 }
901 set_cursor(s, s->x, s->y + s->esc_params[0]);
902 break;
903 case 'C':
904 /* move cursor right */
905 if (s->esc_params[0] == 0) {
906 s->esc_params[0] = 1;
907 }
908 set_cursor(s, s->x + s->esc_params[0], s->y);
909 break;
910 case 'D':
911 /* move cursor left */
912 if (s->esc_params[0] == 0) {
913 s->esc_params[0] = 1;
914 }
915 set_cursor(s, s->x - s->esc_params[0], s->y);
916 break;
917 case 'G':
918 /* move cursor to column */
919 set_cursor(s, s->esc_params[0] - 1, s->y);
920 break;
921 case 'f':
922 case 'H':
923 /* move cursor to row, column */
924 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
925 break;
926 case 'J':
927 switch (s->esc_params[0]) {
928 case 0:
929 /* clear to end of screen */
930 for (y = s->y; y < s->height; y++) {
931 for (x = 0; x < s->width; x++) {
932 if (y == s->y && x < s->x) {
933 continue;
934 }
935 console_clear_xy(s, x, y);
936 }
937 }
938 break;
939 case 1:
940 /* clear from beginning of screen */
941 for (y = 0; y <= s->y; y++) {
942 for (x = 0; x < s->width; x++) {
943 if (y == s->y && x > s->x) {
944 break;
945 }
946 console_clear_xy(s, x, y);
947 }
948 }
949 break;
950 case 2:
951 /* clear entire screen */
952 for (y = 0; y <= s->height; y++) {
953 for (x = 0; x < s->width; x++) {
954 console_clear_xy(s, x, y);
955 }
956 }
957 break;
958 }
959 break;
960 case 'K':
961 switch (s->esc_params[0]) {
962 case 0:
963 /* clear to eol */
964 for(x = s->x; x < s->width; x++) {
965 console_clear_xy(s, x, s->y);
966 }
967 break;
968 case 1:
969 /* clear from beginning of line */
970 for (x = 0; x <= s->x; x++) {
971 console_clear_xy(s, x, s->y);
972 }
973 break;
974 case 2:
975 /* clear entire line */
976 for(x = 0; x < s->width; x++) {
977 console_clear_xy(s, x, s->y);
978 }
979 break;
980 }
981 break;
982 case 'm':
983 console_handle_escape(s);
984 break;
985 case 'n':
986 switch (s->esc_params[0]) {
987 case 5:
988 /* report console status (always succeed)*/
989 console_respond_str(s, "\033[0n");
990 break;
991 case 6:
992 /* report cursor position */
993 sprintf(response, "\033[%d;%dR",
994 (s->y_base + s->y) % s->total_height + 1,
995 s->x + 1);
996 console_respond_str(s, response);
997 break;
998 }
999 break;
1000 case 's':
1001 /* save cursor position */
1002 s->x_saved = s->x;
1003 s->y_saved = s->y;
1004 break;
1005 case 'u':
1006 /* restore cursor position */
1007 s->x = s->x_saved;
1008 s->y = s->y_saved;
1009 break;
1010 default:
1011 trace_console_putchar_unhandled(ch);
1012 break;
1013 }
1014 break;
1015 }
1016 }
1017 }
1018
1019 void console_select(unsigned int index)
1020 {
1021 DisplayChangeListener *dcl;
1022 QemuConsole *s;
1023
1024 trace_console_select(index);
1025 s = qemu_console_lookup_by_index(index);
1026 if (s) {
1027 DisplayState *ds = s->ds;
1028
1029 active_console = s;
1030 if (ds->have_gfx) {
1031 QLIST_FOREACH(dcl, &ds->listeners, next) {
1032 if (dcl->con != NULL) {
1033 continue;
1034 }
1035 if (dcl->ops->dpy_gfx_switch) {
1036 dcl->ops->dpy_gfx_switch(dcl, s->surface);
1037 }
1038 }
1039 dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1040 surface_height(s->surface));
1041 }
1042 if (ds->have_text) {
1043 dpy_text_resize(s, s->width, s->height);
1044 }
1045 text_console_update_cursor(NULL);
1046 }
1047 }
1048
1049 typedef struct VCChardev {
1050 Chardev parent;
1051 QemuConsole *console;
1052 } VCChardev;
1053
1054 #define TYPE_CHARDEV_VC "chardev-vc"
1055 #define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
1056
1057 static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
1058 {
1059 VCChardev *drv = VC_CHARDEV(chr);
1060 QemuConsole *s = drv->console;
1061 int i;
1062
1063 if (!s->ds) {
1064 return 0;
1065 }
1066
1067 s->update_x0 = s->width * FONT_WIDTH;
1068 s->update_y0 = s->height * FONT_HEIGHT;
1069 s->update_x1 = 0;
1070 s->update_y1 = 0;
1071 console_show_cursor(s, 0);
1072 for(i = 0; i < len; i++) {
1073 console_putchar(s, buf[i]);
1074 }
1075 console_show_cursor(s, 1);
1076 if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1077 dpy_gfx_update(s, s->update_x0, s->update_y0,
1078 s->update_x1 - s->update_x0,
1079 s->update_y1 - s->update_y0);
1080 }
1081 return len;
1082 }
1083
1084 static void kbd_send_chars(void *opaque)
1085 {
1086 QemuConsole *s = opaque;
1087 int len;
1088 uint8_t buf[16];
1089
1090 len = qemu_chr_be_can_write(s->chr);
1091 if (len > s->out_fifo.count)
1092 len = s->out_fifo.count;
1093 if (len > 0) {
1094 if (len > sizeof(buf))
1095 len = sizeof(buf);
1096 qemu_fifo_read(&s->out_fifo, buf, len);
1097 qemu_chr_be_write(s->chr, buf, len);
1098 }
1099 /* characters are pending: we send them a bit later (XXX:
1100 horrible, should change char device API) */
1101 if (s->out_fifo.count > 0) {
1102 timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1103 }
1104 }
1105
1106 /* called when an ascii key is pressed */
1107 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1108 {
1109 uint8_t buf[16], *q;
1110 CharBackend *be;
1111 int c;
1112
1113 if (!s || (s->console_type == GRAPHIC_CONSOLE))
1114 return;
1115
1116 switch(keysym) {
1117 case QEMU_KEY_CTRL_UP:
1118 console_scroll(s, -1);
1119 break;
1120 case QEMU_KEY_CTRL_DOWN:
1121 console_scroll(s, 1);
1122 break;
1123 case QEMU_KEY_CTRL_PAGEUP:
1124 console_scroll(s, -10);
1125 break;
1126 case QEMU_KEY_CTRL_PAGEDOWN:
1127 console_scroll(s, 10);
1128 break;
1129 default:
1130 /* convert the QEMU keysym to VT100 key string */
1131 q = buf;
1132 if (keysym >= 0xe100 && keysym <= 0xe11f) {
1133 *q++ = '\033';
1134 *q++ = '[';
1135 c = keysym - 0xe100;
1136 if (c >= 10)
1137 *q++ = '0' + (c / 10);
1138 *q++ = '0' + (c % 10);
1139 *q++ = '~';
1140 } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1141 *q++ = '\033';
1142 *q++ = '[';
1143 *q++ = keysym & 0xff;
1144 } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1145 vc_chr_write(s->chr, (const uint8_t *) "\r", 1);
1146 *q++ = '\n';
1147 } else {
1148 *q++ = keysym;
1149 }
1150 if (s->echo) {
1151 vc_chr_write(s->chr, buf, q - buf);
1152 }
1153 be = s->chr->be;
1154 if (be && be->chr_read) {
1155 qemu_fifo_write(&s->out_fifo, buf, q - buf);
1156 kbd_send_chars(s);
1157 }
1158 break;
1159 }
1160 }
1161
1162 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1163 [Q_KEY_CODE_UP] = QEMU_KEY_UP,
1164 [Q_KEY_CODE_DOWN] = QEMU_KEY_DOWN,
1165 [Q_KEY_CODE_RIGHT] = QEMU_KEY_RIGHT,
1166 [Q_KEY_CODE_LEFT] = QEMU_KEY_LEFT,
1167 [Q_KEY_CODE_HOME] = QEMU_KEY_HOME,
1168 [Q_KEY_CODE_END] = QEMU_KEY_END,
1169 [Q_KEY_CODE_PGUP] = QEMU_KEY_PAGEUP,
1170 [Q_KEY_CODE_PGDN] = QEMU_KEY_PAGEDOWN,
1171 [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1172 [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1173 };
1174
1175 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1176 {
1177 int keysym;
1178
1179 keysym = qcode_to_keysym[qcode];
1180 if (keysym == 0) {
1181 return false;
1182 }
1183 kbd_put_keysym_console(s, keysym);
1184 return true;
1185 }
1186
1187 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1188 {
1189 int i;
1190
1191 for (i = 0; i < len && str[i]; i++) {
1192 kbd_put_keysym_console(s, str[i]);
1193 }
1194 }
1195
1196 void kbd_put_keysym(int keysym)
1197 {
1198 kbd_put_keysym_console(active_console, keysym);
1199 }
1200
1201 static void text_console_invalidate(void *opaque)
1202 {
1203 QemuConsole *s = (QemuConsole *) opaque;
1204
1205 if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1206 text_console_resize(s);
1207 }
1208 console_refresh(s);
1209 }
1210
1211 static void text_console_update(void *opaque, console_ch_t *chardata)
1212 {
1213 QemuConsole *s = (QemuConsole *) opaque;
1214 int i, j, src;
1215
1216 if (s->text_x[0] <= s->text_x[1]) {
1217 src = (s->y_base + s->text_y[0]) * s->width;
1218 chardata += s->text_y[0] * s->width;
1219 for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1220 for (j = 0; j < s->width; j++, src++) {
1221 console_write_ch(chardata ++,
1222 ATTR2CHTYPE(s->cells[src].ch,
1223 s->cells[src].t_attrib.fgcol,
1224 s->cells[src].t_attrib.bgcol,
1225 s->cells[src].t_attrib.bold));
1226 }
1227 dpy_text_update(s, s->text_x[0], s->text_y[0],
1228 s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1229 s->text_x[0] = s->width;
1230 s->text_y[0] = s->height;
1231 s->text_x[1] = 0;
1232 s->text_y[1] = 0;
1233 }
1234 if (s->cursor_invalidate) {
1235 dpy_text_cursor(s, s->x, s->y);
1236 s->cursor_invalidate = 0;
1237 }
1238 }
1239
1240 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1241 uint32_t head)
1242 {
1243 Object *obj;
1244 QemuConsole *s;
1245 int i;
1246
1247 obj = object_new(TYPE_QEMU_CONSOLE);
1248 s = QEMU_CONSOLE(obj);
1249 s->head = head;
1250 object_property_add_link(obj, "device", TYPE_DEVICE,
1251 (Object **)&s->device,
1252 object_property_allow_set_link,
1253 OBJ_PROP_LINK_UNREF_ON_RELEASE,
1254 &error_abort);
1255 object_property_add_uint32_ptr(obj, "head",
1256 &s->head, &error_abort);
1257
1258 if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1259 (console_type == GRAPHIC_CONSOLE))) {
1260 active_console = s;
1261 }
1262 s->ds = ds;
1263 s->console_type = console_type;
1264
1265 consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1266 if (console_type != GRAPHIC_CONSOLE) {
1267 s->index = nb_consoles;
1268 consoles[nb_consoles++] = s;
1269 } else {
1270 /* HACK: Put graphical consoles before text consoles. */
1271 for (i = nb_consoles; i > 0; i--) {
1272 if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1273 break;
1274 consoles[i] = consoles[i - 1];
1275 consoles[i]->index = i;
1276 }
1277 s->index = i;
1278 consoles[i] = s;
1279 nb_consoles++;
1280 }
1281 return s;
1282 }
1283
1284 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1285 {
1286 qemu_pixman_image_unref(surface->image);
1287 surface->image = NULL;
1288
1289 surface->format = PIXMAN_x8r8g8b8;
1290 surface->image = pixman_image_create_bits(surface->format,
1291 width, height,
1292 NULL, width * 4);
1293 assert(surface->image != NULL);
1294
1295 surface->flags = QEMU_ALLOCATED_FLAG;
1296 }
1297
1298 DisplaySurface *qemu_create_displaysurface(int width, int height)
1299 {
1300 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1301
1302 trace_displaysurface_create(surface, width, height);
1303 qemu_alloc_display(surface, width, height);
1304 return surface;
1305 }
1306
1307 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1308 pixman_format_code_t format,
1309 int linesize, uint8_t *data)
1310 {
1311 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1312
1313 trace_displaysurface_create_from(surface, width, height, format);
1314 surface->format = format;
1315 surface->image = pixman_image_create_bits(surface->format,
1316 width, height,
1317 (void *)data, linesize);
1318 assert(surface->image != NULL);
1319
1320 return surface;
1321 }
1322
1323 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1324 {
1325 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1326
1327 trace_displaysurface_create_pixman(surface);
1328 surface->format = pixman_image_get_format(image);
1329 surface->image = pixman_image_ref(image);
1330
1331 return surface;
1332 }
1333
1334 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1335 void *unused)
1336 {
1337 void *data = pixman_image_get_data(image);
1338 uint32_t size = pixman_image_get_stride(image) *
1339 pixman_image_get_height(image);
1340 cpu_physical_memory_unmap(data, size, 0, 0);
1341 }
1342
1343 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1344 pixman_format_code_t format,
1345 int linesize, uint64_t addr)
1346 {
1347 DisplaySurface *surface;
1348 hwaddr size;
1349 void *data;
1350
1351 if (linesize == 0) {
1352 linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1353 }
1354
1355 size = (hwaddr)linesize * height;
1356 data = cpu_physical_memory_map(addr, &size, 0);
1357 if (size != (hwaddr)linesize * height) {
1358 cpu_physical_memory_unmap(data, size, 0, 0);
1359 return NULL;
1360 }
1361
1362 surface = qemu_create_displaysurface_from
1363 (width, height, format, linesize, data);
1364 pixman_image_set_destroy_function
1365 (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1366
1367 return surface;
1368 }
1369
1370 static DisplaySurface *qemu_create_message_surface(int w, int h,
1371 const char *msg)
1372 {
1373 DisplaySurface *surface = qemu_create_displaysurface(w, h);
1374 pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1375 pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1376 pixman_image_t *glyph;
1377 int len, x, y, i;
1378
1379 len = strlen(msg);
1380 x = (w / FONT_WIDTH - len) / 2;
1381 y = (h / FONT_HEIGHT - 1) / 2;
1382 for (i = 0; i < len; i++) {
1383 glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1384 qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1385 x+i, y, FONT_WIDTH, FONT_HEIGHT);
1386 qemu_pixman_image_unref(glyph);
1387 }
1388 return surface;
1389 }
1390
1391 void qemu_free_displaysurface(DisplaySurface *surface)
1392 {
1393 if (surface == NULL) {
1394 return;
1395 }
1396 trace_displaysurface_free(surface);
1397 qemu_pixman_image_unref(surface->image);
1398 g_free(surface);
1399 }
1400
1401 bool console_has_gl(QemuConsole *con)
1402 {
1403 return con->gl != NULL;
1404 }
1405
1406 void register_displaychangelistener(DisplayChangeListener *dcl)
1407 {
1408 static const char nodev[] =
1409 "This VM has no graphic display device.";
1410 static DisplaySurface *dummy;
1411 QemuConsole *con;
1412
1413 assert(!dcl->ds);
1414
1415 if (dcl->ops->dpy_gl_ctx_create) {
1416 /* display has opengl support */
1417 assert(dcl->con);
1418 if (dcl->con->gl) {
1419 fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1420 dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1421 exit(1);
1422 }
1423 dcl->con->gl = dcl;
1424 }
1425
1426 trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1427 dcl->ds = get_alloc_displaystate();
1428 QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1429 gui_setup_refresh(dcl->ds);
1430 if (dcl->con) {
1431 dcl->con->dcls++;
1432 con = dcl->con;
1433 } else {
1434 con = active_console;
1435 }
1436 if (dcl->ops->dpy_gfx_switch) {
1437 if (con) {
1438 dcl->ops->dpy_gfx_switch(dcl, con->surface);
1439 } else {
1440 if (!dummy) {
1441 dummy = qemu_create_message_surface(640, 480, nodev);
1442 }
1443 dcl->ops->dpy_gfx_switch(dcl, dummy);
1444 }
1445 }
1446 text_console_update_cursor(NULL);
1447 }
1448
1449 void update_displaychangelistener(DisplayChangeListener *dcl,
1450 uint64_t interval)
1451 {
1452 DisplayState *ds = dcl->ds;
1453
1454 dcl->update_interval = interval;
1455 if (!ds->refreshing && ds->update_interval > interval) {
1456 timer_mod(ds->gui_timer, ds->last_update + interval);
1457 }
1458 }
1459
1460 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1461 {
1462 DisplayState *ds = dcl->ds;
1463 trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1464 if (dcl->con) {
1465 dcl->con->dcls--;
1466 }
1467 QLIST_REMOVE(dcl, next);
1468 gui_setup_refresh(ds);
1469 }
1470
1471 static void dpy_set_ui_info_timer(void *opaque)
1472 {
1473 QemuConsole *con = opaque;
1474
1475 con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1476 }
1477
1478 bool dpy_ui_info_supported(QemuConsole *con)
1479 {
1480 return con->hw_ops->ui_info != NULL;
1481 }
1482
1483 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1484 {
1485 assert(con != NULL);
1486
1487 if (!dpy_ui_info_supported(con)) {
1488 return -1;
1489 }
1490 if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1491 /* nothing changed -- ignore */
1492 return 0;
1493 }
1494
1495 /*
1496 * Typically we get a flood of these as the user resizes the window.
1497 * Wait until the dust has settled (one second without updates), then
1498 * go notify the guest.
1499 */
1500 con->ui_info = *info;
1501 timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1502 return 0;
1503 }
1504
1505 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1506 {
1507 DisplayState *s = con->ds;
1508 DisplayChangeListener *dcl;
1509 int width = w;
1510 int height = h;
1511
1512 if (con->surface) {
1513 width = surface_width(con->surface);
1514 height = surface_height(con->surface);
1515 }
1516 x = MAX(x, 0);
1517 y = MAX(y, 0);
1518 x = MIN(x, width);
1519 y = MIN(y, height);
1520 w = MIN(w, width - x);
1521 h = MIN(h, height - y);
1522
1523 if (!qemu_console_is_visible(con)) {
1524 return;
1525 }
1526 QLIST_FOREACH(dcl, &s->listeners, next) {
1527 if (con != (dcl->con ? dcl->con : active_console)) {
1528 continue;
1529 }
1530 if (dcl->ops->dpy_gfx_update) {
1531 dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1532 }
1533 }
1534 }
1535
1536 void dpy_gfx_replace_surface(QemuConsole *con,
1537 DisplaySurface *surface)
1538 {
1539 DisplayState *s = con->ds;
1540 DisplaySurface *old_surface = con->surface;
1541 DisplayChangeListener *dcl;
1542
1543 assert(old_surface != surface);
1544
1545 con->surface = surface;
1546 QLIST_FOREACH(dcl, &s->listeners, next) {
1547 if (con != (dcl->con ? dcl->con : active_console)) {
1548 continue;
1549 }
1550 if (dcl->ops->dpy_gfx_switch) {
1551 dcl->ops->dpy_gfx_switch(dcl, surface);
1552 }
1553 }
1554 qemu_free_displaysurface(old_surface);
1555 }
1556
1557 bool dpy_gfx_check_format(QemuConsole *con,
1558 pixman_format_code_t format)
1559 {
1560 DisplayChangeListener *dcl;
1561 DisplayState *s = con->ds;
1562
1563 QLIST_FOREACH(dcl, &s->listeners, next) {
1564 if (dcl->con && dcl->con != con) {
1565 /* dcl bound to another console -> skip */
1566 continue;
1567 }
1568 if (dcl->ops->dpy_gfx_check_format) {
1569 if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1570 return false;
1571 }
1572 } else {
1573 /* default is to whitelist native 32 bpp only */
1574 if (format != qemu_default_pixman_format(32, true)) {
1575 return false;
1576 }
1577 }
1578 }
1579 return true;
1580 }
1581
1582 static void dpy_refresh(DisplayState *s)
1583 {
1584 DisplayChangeListener *dcl;
1585
1586 QLIST_FOREACH(dcl, &s->listeners, next) {
1587 if (dcl->ops->dpy_refresh) {
1588 dcl->ops->dpy_refresh(dcl);
1589 }
1590 }
1591 }
1592
1593 void dpy_text_cursor(QemuConsole *con, int x, int y)
1594 {
1595 DisplayState *s = con->ds;
1596 DisplayChangeListener *dcl;
1597
1598 if (!qemu_console_is_visible(con)) {
1599 return;
1600 }
1601 QLIST_FOREACH(dcl, &s->listeners, next) {
1602 if (con != (dcl->con ? dcl->con : active_console)) {
1603 continue;
1604 }
1605 if (dcl->ops->dpy_text_cursor) {
1606 dcl->ops->dpy_text_cursor(dcl, x, y);
1607 }
1608 }
1609 }
1610
1611 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1612 {
1613 DisplayState *s = con->ds;
1614 DisplayChangeListener *dcl;
1615
1616 if (!qemu_console_is_visible(con)) {
1617 return;
1618 }
1619 QLIST_FOREACH(dcl, &s->listeners, next) {
1620 if (con != (dcl->con ? dcl->con : active_console)) {
1621 continue;
1622 }
1623 if (dcl->ops->dpy_text_update) {
1624 dcl->ops->dpy_text_update(dcl, x, y, w, h);
1625 }
1626 }
1627 }
1628
1629 void dpy_text_resize(QemuConsole *con, int w, int h)
1630 {
1631 DisplayState *s = con->ds;
1632 DisplayChangeListener *dcl;
1633
1634 if (!qemu_console_is_visible(con)) {
1635 return;
1636 }
1637 QLIST_FOREACH(dcl, &s->listeners, next) {
1638 if (con != (dcl->con ? dcl->con : active_console)) {
1639 continue;
1640 }
1641 if (dcl->ops->dpy_text_resize) {
1642 dcl->ops->dpy_text_resize(dcl, w, h);
1643 }
1644 }
1645 }
1646
1647 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1648 {
1649 DisplayState *s = con->ds;
1650 DisplayChangeListener *dcl;
1651
1652 if (!qemu_console_is_visible(con)) {
1653 return;
1654 }
1655 QLIST_FOREACH(dcl, &s->listeners, next) {
1656 if (con != (dcl->con ? dcl->con : active_console)) {
1657 continue;
1658 }
1659 if (dcl->ops->dpy_mouse_set) {
1660 dcl->ops->dpy_mouse_set(dcl, x, y, on);
1661 }
1662 }
1663 }
1664
1665 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1666 {
1667 DisplayState *s = con->ds;
1668 DisplayChangeListener *dcl;
1669
1670 if (!qemu_console_is_visible(con)) {
1671 return;
1672 }
1673 QLIST_FOREACH(dcl, &s->listeners, next) {
1674 if (con != (dcl->con ? dcl->con : active_console)) {
1675 continue;
1676 }
1677 if (dcl->ops->dpy_cursor_define) {
1678 dcl->ops->dpy_cursor_define(dcl, cursor);
1679 }
1680 }
1681 }
1682
1683 bool dpy_cursor_define_supported(QemuConsole *con)
1684 {
1685 DisplayState *s = con->ds;
1686 DisplayChangeListener *dcl;
1687
1688 QLIST_FOREACH(dcl, &s->listeners, next) {
1689 if (dcl->ops->dpy_cursor_define) {
1690 return true;
1691 }
1692 }
1693 return false;
1694 }
1695
1696 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1697 struct QEMUGLParams *qparams)
1698 {
1699 assert(con->gl);
1700 return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1701 }
1702
1703 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1704 {
1705 assert(con->gl);
1706 con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1707 }
1708
1709 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1710 {
1711 assert(con->gl);
1712 return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1713 }
1714
1715 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1716 {
1717 assert(con->gl);
1718 return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1719 }
1720
1721 void dpy_gl_scanout_disable(QemuConsole *con)
1722 {
1723 assert(con->gl);
1724 if (con->gl->ops->dpy_gl_scanout_disable) {
1725 con->gl->ops->dpy_gl_scanout_disable(con->gl);
1726 } else {
1727 con->gl->ops->dpy_gl_scanout_texture(con->gl, 0, false, 0, 0,
1728 0, 0, 0, 0);
1729 }
1730 }
1731
1732 void dpy_gl_scanout_texture(QemuConsole *con,
1733 uint32_t backing_id,
1734 bool backing_y_0_top,
1735 uint32_t backing_width,
1736 uint32_t backing_height,
1737 uint32_t x, uint32_t y,
1738 uint32_t width, uint32_t height)
1739 {
1740 assert(con->gl);
1741 con->gl->ops->dpy_gl_scanout_texture(con->gl, backing_id,
1742 backing_y_0_top,
1743 backing_width, backing_height,
1744 x, y, width, height);
1745 }
1746
1747 void dpy_gl_update(QemuConsole *con,
1748 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1749 {
1750 assert(con->gl);
1751 con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1752 }
1753
1754 /***********************************************************/
1755 /* register display */
1756
1757 /* console.c internal use only */
1758 static DisplayState *get_alloc_displaystate(void)
1759 {
1760 if (!display_state) {
1761 display_state = g_new0(DisplayState, 1);
1762 cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1763 text_console_update_cursor, NULL);
1764 }
1765 return display_state;
1766 }
1767
1768 /*
1769 * Called by main(), after creating QemuConsoles
1770 * and before initializing ui (sdl/vnc/...).
1771 */
1772 DisplayState *init_displaystate(void)
1773 {
1774 gchar *name;
1775 int i;
1776
1777 get_alloc_displaystate();
1778 for (i = 0; i < nb_consoles; i++) {
1779 if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1780 consoles[i]->ds == NULL) {
1781 text_console_do_init(consoles[i]->chr, display_state);
1782 }
1783
1784 /* Hook up into the qom tree here (not in new_console()), once
1785 * all QemuConsoles are created and the order / numbering
1786 * doesn't change any more */
1787 name = g_strdup_printf("console[%d]", i);
1788 object_property_add_child(container_get(object_get_root(), "/backend"),
1789 name, OBJECT(consoles[i]), &error_abort);
1790 g_free(name);
1791 }
1792
1793 return display_state;
1794 }
1795
1796 void graphic_console_set_hwops(QemuConsole *con,
1797 const GraphicHwOps *hw_ops,
1798 void *opaque)
1799 {
1800 con->hw_ops = hw_ops;
1801 con->hw = opaque;
1802 }
1803
1804 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1805 const GraphicHwOps *hw_ops,
1806 void *opaque)
1807 {
1808 static const char noinit[] =
1809 "Guest has not initialized the display (yet).";
1810 int width = 640;
1811 int height = 480;
1812 QemuConsole *s;
1813 DisplayState *ds;
1814
1815 ds = get_alloc_displaystate();
1816 trace_console_gfx_new();
1817 s = new_console(ds, GRAPHIC_CONSOLE, head);
1818 s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1819 graphic_console_set_hwops(s, hw_ops, opaque);
1820 if (dev) {
1821 object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1822 &error_abort);
1823 }
1824
1825 s->surface = qemu_create_message_surface(width, height, noinit);
1826 return s;
1827 }
1828
1829 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1830 {
1831 if (index >= nb_consoles) {
1832 return NULL;
1833 }
1834 return consoles[index];
1835 }
1836
1837 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1838 {
1839 Object *obj;
1840 uint32_t h;
1841 int i;
1842
1843 for (i = 0; i < nb_consoles; i++) {
1844 if (!consoles[i]) {
1845 continue;
1846 }
1847 obj = object_property_get_link(OBJECT(consoles[i]),
1848 "device", &error_abort);
1849 if (DEVICE(obj) != dev) {
1850 continue;
1851 }
1852 h = object_property_get_uint(OBJECT(consoles[i]),
1853 "head", &error_abort);
1854 if (h != head) {
1855 continue;
1856 }
1857 return consoles[i];
1858 }
1859 return NULL;
1860 }
1861
1862 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1863 uint32_t head, Error **errp)
1864 {
1865 DeviceState *dev;
1866 QemuConsole *con;
1867
1868 dev = qdev_find_recursive(sysbus_get_default(), device_id);
1869 if (dev == NULL) {
1870 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1871 "Device '%s' not found", device_id);
1872 return NULL;
1873 }
1874
1875 con = qemu_console_lookup_by_device(dev, head);
1876 if (con == NULL) {
1877 error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1878 device_id, head);
1879 return NULL;
1880 }
1881
1882 return con;
1883 }
1884
1885 bool qemu_console_is_visible(QemuConsole *con)
1886 {
1887 return (con == active_console) || (con->dcls > 0);
1888 }
1889
1890 bool qemu_console_is_graphic(QemuConsole *con)
1891 {
1892 if (con == NULL) {
1893 con = active_console;
1894 }
1895 return con && (con->console_type == GRAPHIC_CONSOLE);
1896 }
1897
1898 bool qemu_console_is_fixedsize(QemuConsole *con)
1899 {
1900 if (con == NULL) {
1901 con = active_console;
1902 }
1903 return con && (con->console_type != TEXT_CONSOLE);
1904 }
1905
1906 bool qemu_console_is_gl_blocked(QemuConsole *con)
1907 {
1908 assert(con != NULL);
1909 return con->gl_block;
1910 }
1911
1912 char *qemu_console_get_label(QemuConsole *con)
1913 {
1914 if (con->console_type == GRAPHIC_CONSOLE) {
1915 if (con->device) {
1916 return g_strdup(object_get_typename(con->device));
1917 }
1918 return g_strdup("VGA");
1919 } else {
1920 if (con->chr && con->chr->label) {
1921 return g_strdup(con->chr->label);
1922 }
1923 return g_strdup_printf("vc%d", con->index);
1924 }
1925 }
1926
1927 int qemu_console_get_index(QemuConsole *con)
1928 {
1929 if (con == NULL) {
1930 con = active_console;
1931 }
1932 return con ? con->index : -1;
1933 }
1934
1935 uint32_t qemu_console_get_head(QemuConsole *con)
1936 {
1937 if (con == NULL) {
1938 con = active_console;
1939 }
1940 return con ? con->head : -1;
1941 }
1942
1943 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1944 {
1945 assert(con != NULL);
1946 return &con->ui_info;
1947 }
1948
1949 int qemu_console_get_width(QemuConsole *con, int fallback)
1950 {
1951 if (con == NULL) {
1952 con = active_console;
1953 }
1954 return con ? surface_width(con->surface) : fallback;
1955 }
1956
1957 int qemu_console_get_height(QemuConsole *con, int fallback)
1958 {
1959 if (con == NULL) {
1960 con = active_console;
1961 }
1962 return con ? surface_height(con->surface) : fallback;
1963 }
1964
1965 static void vc_chr_set_echo(Chardev *chr, bool echo)
1966 {
1967 VCChardev *drv = VC_CHARDEV(chr);
1968 QemuConsole *s = drv->console;
1969
1970 s->echo = echo;
1971 }
1972
1973 static void text_console_update_cursor_timer(void)
1974 {
1975 timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
1976 + CONSOLE_CURSOR_PERIOD / 2);
1977 }
1978
1979 static void text_console_update_cursor(void *opaque)
1980 {
1981 QemuConsole *s;
1982 int i, count = 0;
1983
1984 cursor_visible_phase = !cursor_visible_phase;
1985
1986 for (i = 0; i < nb_consoles; i++) {
1987 s = consoles[i];
1988 if (qemu_console_is_graphic(s) ||
1989 !qemu_console_is_visible(s)) {
1990 continue;
1991 }
1992 count++;
1993 graphic_hw_invalidate(s);
1994 }
1995
1996 if (count) {
1997 text_console_update_cursor_timer();
1998 }
1999 }
2000
2001 static const GraphicHwOps text_console_ops = {
2002 .invalidate = text_console_invalidate,
2003 .text_update = text_console_update,
2004 };
2005
2006 static void text_console_do_init(Chardev *chr, DisplayState *ds)
2007 {
2008 VCChardev *drv = VC_CHARDEV(chr);
2009 QemuConsole *s = drv->console;
2010 int g_width = 80 * FONT_WIDTH;
2011 int g_height = 24 * FONT_HEIGHT;
2012
2013 s->out_fifo.buf = s->out_fifo_buf;
2014 s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
2015 s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
2016 s->ds = ds;
2017
2018 s->y_displayed = 0;
2019 s->y_base = 0;
2020 s->total_height = DEFAULT_BACKSCROLL;
2021 s->x = 0;
2022 s->y = 0;
2023 if (!s->surface) {
2024 if (active_console && active_console->surface) {
2025 g_width = surface_width(active_console->surface);
2026 g_height = surface_height(active_console->surface);
2027 }
2028 s->surface = qemu_create_displaysurface(g_width, g_height);
2029 }
2030
2031 s->hw_ops = &text_console_ops;
2032 s->hw = s;
2033
2034 /* Set text attribute defaults */
2035 s->t_attrib_default.bold = 0;
2036 s->t_attrib_default.uline = 0;
2037 s->t_attrib_default.blink = 0;
2038 s->t_attrib_default.invers = 0;
2039 s->t_attrib_default.unvisible = 0;
2040 s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2041 s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2042 /* set current text attributes to default */
2043 s->t_attrib = s->t_attrib_default;
2044 text_console_resize(s);
2045
2046 if (chr->label) {
2047 char msg[128];
2048 int len;
2049
2050 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2051 len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2052 vc_chr_write(chr, (uint8_t *)msg, len);
2053 s->t_attrib = s->t_attrib_default;
2054 }
2055
2056 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
2057 }
2058
2059 static void vc_chr_open(Chardev *chr,
2060 ChardevBackend *backend,
2061 bool *be_opened,
2062 Error **errp)
2063 {
2064 ChardevVC *vc = backend->u.vc.data;
2065 VCChardev *drv = VC_CHARDEV(chr);
2066 QemuConsole *s;
2067 unsigned width = 0;
2068 unsigned height = 0;
2069
2070 if (vc->has_width) {
2071 width = vc->width;
2072 } else if (vc->has_cols) {
2073 width = vc->cols * FONT_WIDTH;
2074 }
2075
2076 if (vc->has_height) {
2077 height = vc->height;
2078 } else if (vc->has_rows) {
2079 height = vc->rows * FONT_HEIGHT;
2080 }
2081
2082 trace_console_txt_new(width, height);
2083 if (width == 0 || height == 0) {
2084 s = new_console(NULL, TEXT_CONSOLE, 0);
2085 } else {
2086 s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2087 s->surface = qemu_create_displaysurface(width, height);
2088 }
2089
2090 if (!s) {
2091 error_setg(errp, "cannot create text console");
2092 return;
2093 }
2094
2095 s->chr = chr;
2096 drv->console = s;
2097
2098 if (display_state) {
2099 text_console_do_init(chr, display_state);
2100 }
2101
2102 /* console/chardev init sometimes completes elsewhere in a 2nd
2103 * stage, so defer OPENED events until they are fully initialized
2104 */
2105 *be_opened = false;
2106 }
2107
2108 void qemu_console_resize(QemuConsole *s, int width, int height)
2109 {
2110 DisplaySurface *surface;
2111
2112 assert(s->console_type == GRAPHIC_CONSOLE);
2113
2114 if (s->surface && (s->surface->flags & QEMU_ALLOCATED_FLAG) &&
2115 pixman_image_get_width(s->surface->image) == width &&
2116 pixman_image_get_height(s->surface->image) == height) {
2117 return;
2118 }
2119
2120 surface = qemu_create_displaysurface(width, height);
2121 dpy_gfx_replace_surface(s, surface);
2122 }
2123
2124 DisplaySurface *qemu_console_surface(QemuConsole *console)
2125 {
2126 return console->surface;
2127 }
2128
2129 PixelFormat qemu_default_pixelformat(int bpp)
2130 {
2131 pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2132 PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2133 return pf;
2134 }
2135
2136 void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp)
2137 {
2138 int val;
2139 ChardevVC *vc;
2140
2141 backend->type = CHARDEV_BACKEND_KIND_VC;
2142 vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2143 qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2144
2145 val = qemu_opt_get_number(opts, "width", 0);
2146 if (val != 0) {
2147 vc->has_width = true;
2148 vc->width = val;
2149 }
2150
2151 val = qemu_opt_get_number(opts, "height", 0);
2152 if (val != 0) {
2153 vc->has_height = true;
2154 vc->height = val;
2155 }
2156
2157 val = qemu_opt_get_number(opts, "cols", 0);
2158 if (val != 0) {
2159 vc->has_cols = true;
2160 vc->cols = val;
2161 }
2162
2163 val = qemu_opt_get_number(opts, "rows", 0);
2164 if (val != 0) {
2165 vc->has_rows = true;
2166 vc->rows = val;
2167 }
2168 }
2169
2170 static const TypeInfo qemu_console_info = {
2171 .name = TYPE_QEMU_CONSOLE,
2172 .parent = TYPE_OBJECT,
2173 .instance_size = sizeof(QemuConsole),
2174 .class_size = sizeof(QemuConsoleClass),
2175 };
2176
2177 static void char_vc_class_init(ObjectClass *oc, void *data)
2178 {
2179 ChardevClass *cc = CHARDEV_CLASS(oc);
2180
2181 cc->parse = qemu_chr_parse_vc;
2182 cc->open = vc_chr_open;
2183 cc->chr_write = vc_chr_write;
2184 cc->chr_set_echo = vc_chr_set_echo;
2185 }
2186
2187 static const TypeInfo char_vc_type_info = {
2188 .name = TYPE_CHARDEV_VC,
2189 .parent = TYPE_CHARDEV,
2190 .instance_size = sizeof(VCChardev),
2191 .class_init = char_vc_class_init,
2192 };
2193
2194 void qemu_console_early_init(void)
2195 {
2196 /* set the default vc driver */
2197 if (!object_class_by_name(TYPE_CHARDEV_VC)) {
2198 type_register(&char_vc_type_info);
2199 }
2200 }
2201
2202 static void register_types(void)
2203 {
2204 type_register_static(&qemu_console_info);
2205 }
2206
2207 type_init(register_types);
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