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readline: don't free completions in readline_free()
[qemu.git] / ui / console.c
blobc4c95abed7efe37cb48d2cea05e8580f508fe9db
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 == ';' || ch == '?') {
884 break;
885 }
886 trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
887 ch, s->nb_esc_params);
888 s->state = TTY_STATE_NORM;
889 switch(ch) {
890 case 'A':
891 /* move cursor up */
892 if (s->esc_params[0] == 0) {
893 s->esc_params[0] = 1;
894 }
895 set_cursor(s, s->x, s->y - s->esc_params[0]);
896 break;
897 case 'B':
898 /* move cursor down */
899 if (s->esc_params[0] == 0) {
900 s->esc_params[0] = 1;
901 }
902 set_cursor(s, s->x, s->y + s->esc_params[0]);
903 break;
904 case 'C':
905 /* move cursor right */
906 if (s->esc_params[0] == 0) {
907 s->esc_params[0] = 1;
908 }
909 set_cursor(s, s->x + s->esc_params[0], s->y);
910 break;
911 case 'D':
912 /* move cursor left */
913 if (s->esc_params[0] == 0) {
914 s->esc_params[0] = 1;
915 }
916 set_cursor(s, s->x - s->esc_params[0], s->y);
917 break;
918 case 'G':
919 /* move cursor to column */
920 set_cursor(s, s->esc_params[0] - 1, s->y);
921 break;
922 case 'f':
923 case 'H':
924 /* move cursor to row, column */
925 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
926 break;
927 case 'J':
928 switch (s->esc_params[0]) {
929 case 0:
930 /* clear to end of screen */
931 for (y = s->y; y < s->height; y++) {
932 for (x = 0; x < s->width; x++) {
933 if (y == s->y && x < s->x) {
934 continue;
935 }
936 console_clear_xy(s, x, y);
937 }
938 }
939 break;
940 case 1:
941 /* clear from beginning of screen */
942 for (y = 0; y <= s->y; y++) {
943 for (x = 0; x < s->width; x++) {
944 if (y == s->y && x > s->x) {
945 break;
946 }
947 console_clear_xy(s, x, y);
948 }
949 }
950 break;
951 case 2:
952 /* clear entire screen */
953 for (y = 0; y <= s->height; y++) {
954 for (x = 0; x < s->width; x++) {
955 console_clear_xy(s, x, y);
956 }
957 }
958 break;
959 }
960 break;
961 case 'K':
962 switch (s->esc_params[0]) {
963 case 0:
964 /* clear to eol */
965 for(x = s->x; x < s->width; x++) {
966 console_clear_xy(s, x, s->y);
967 }
968 break;
969 case 1:
970 /* clear from beginning of line */
971 for (x = 0; x <= s->x; x++) {
972 console_clear_xy(s, x, s->y);
973 }
974 break;
975 case 2:
976 /* clear entire line */
977 for(x = 0; x < s->width; x++) {
978 console_clear_xy(s, x, s->y);
979 }
980 break;
981 }
982 break;
983 case 'm':
984 console_handle_escape(s);
985 break;
986 case 'n':
987 switch (s->esc_params[0]) {
988 case 5:
989 /* report console status (always succeed)*/
990 console_respond_str(s, "\033[0n");
991 break;
992 case 6:
993 /* report cursor position */
994 sprintf(response, "\033[%d;%dR",
995 (s->y_base + s->y) % s->total_height + 1,
996 s->x + 1);
997 console_respond_str(s, response);
998 break;
999 }
1000 break;
1001 case 's':
1002 /* save cursor position */
1003 s->x_saved = s->x;
1004 s->y_saved = s->y;
1005 break;
1006 case 'u':
1007 /* restore cursor position */
1008 s->x = s->x_saved;
1009 s->y = s->y_saved;
1010 break;
1011 default:
1012 trace_console_putchar_unhandled(ch);
1013 break;
1014 }
1015 break;
1016 }
1017 }
1018 }
1019
1020 void console_select(unsigned int index)
1021 {
1022 DisplayChangeListener *dcl;
1023 QemuConsole *s;
1024
1025 trace_console_select(index);
1026 s = qemu_console_lookup_by_index(index);
1027 if (s) {
1028 DisplayState *ds = s->ds;
1029
1030 active_console = s;
1031 if (ds->have_gfx) {
1032 QLIST_FOREACH(dcl, &ds->listeners, next) {
1033 if (dcl->con != NULL) {
1034 continue;
1035 }
1036 if (dcl->ops->dpy_gfx_switch) {
1037 dcl->ops->dpy_gfx_switch(dcl, s->surface);
1038 }
1039 }
1040 dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1041 surface_height(s->surface));
1042 }
1043 if (ds->have_text) {
1044 dpy_text_resize(s, s->width, s->height);
1045 }
1046 text_console_update_cursor(NULL);
1047 }
1048 }
1049
1050 typedef struct VCChardev {
1051 Chardev parent;
1052 QemuConsole *console;
1053 } VCChardev;
1054
1055 #define TYPE_CHARDEV_VC "chardev-vc"
1056 #define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
1057
1058 static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
1059 {
1060 VCChardev *drv = VC_CHARDEV(chr);
1061 QemuConsole *s = drv->console;
1062 int i;
1063
1064 if (!s->ds) {
1065 return 0;
1066 }
1067
1068 s->update_x0 = s->width * FONT_WIDTH;
1069 s->update_y0 = s->height * FONT_HEIGHT;
1070 s->update_x1 = 0;
1071 s->update_y1 = 0;
1072 console_show_cursor(s, 0);
1073 for(i = 0; i < len; i++) {
1074 console_putchar(s, buf[i]);
1075 }
1076 console_show_cursor(s, 1);
1077 if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1078 dpy_gfx_update(s, s->update_x0, s->update_y0,
1079 s->update_x1 - s->update_x0,
1080 s->update_y1 - s->update_y0);
1081 }
1082 return len;
1083 }
1084
1085 static void kbd_send_chars(void *opaque)
1086 {
1087 QemuConsole *s = opaque;
1088 int len;
1089 uint8_t buf[16];
1090
1091 len = qemu_chr_be_can_write(s->chr);
1092 if (len > s->out_fifo.count)
1093 len = s->out_fifo.count;
1094 if (len > 0) {
1095 if (len > sizeof(buf))
1096 len = sizeof(buf);
1097 qemu_fifo_read(&s->out_fifo, buf, len);
1098 qemu_chr_be_write(s->chr, buf, len);
1099 }
1100 /* characters are pending: we send them a bit later (XXX:
1101 horrible, should change char device API) */
1102 if (s->out_fifo.count > 0) {
1103 timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1104 }
1105 }
1106
1107 /* called when an ascii key is pressed */
1108 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1109 {
1110 uint8_t buf[16], *q;
1111 CharBackend *be;
1112 int c;
1113
1114 if (!s || (s->console_type == GRAPHIC_CONSOLE))
1115 return;
1116
1117 switch(keysym) {
1118 case QEMU_KEY_CTRL_UP:
1119 console_scroll(s, -1);
1120 break;
1121 case QEMU_KEY_CTRL_DOWN:
1122 console_scroll(s, 1);
1123 break;
1124 case QEMU_KEY_CTRL_PAGEUP:
1125 console_scroll(s, -10);
1126 break;
1127 case QEMU_KEY_CTRL_PAGEDOWN:
1128 console_scroll(s, 10);
1129 break;
1130 default:
1131 /* convert the QEMU keysym to VT100 key string */
1132 q = buf;
1133 if (keysym >= 0xe100 && keysym <= 0xe11f) {
1134 *q++ = '\033';
1135 *q++ = '[';
1136 c = keysym - 0xe100;
1137 if (c >= 10)
1138 *q++ = '0' + (c / 10);
1139 *q++ = '0' + (c % 10);
1140 *q++ = '~';
1141 } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1142 *q++ = '\033';
1143 *q++ = '[';
1144 *q++ = keysym & 0xff;
1145 } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1146 vc_chr_write(s->chr, (const uint8_t *) "\r", 1);
1147 *q++ = '\n';
1148 } else {
1149 *q++ = keysym;
1150 }
1151 if (s->echo) {
1152 vc_chr_write(s->chr, buf, q - buf);
1153 }
1154 be = s->chr->be;
1155 if (be && be->chr_read) {
1156 qemu_fifo_write(&s->out_fifo, buf, q - buf);
1157 kbd_send_chars(s);
1158 }
1159 break;
1160 }
1161 }
1162
1163 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1164 [Q_KEY_CODE_UP] = QEMU_KEY_UP,
1165 [Q_KEY_CODE_DOWN] = QEMU_KEY_DOWN,
1166 [Q_KEY_CODE_RIGHT] = QEMU_KEY_RIGHT,
1167 [Q_KEY_CODE_LEFT] = QEMU_KEY_LEFT,
1168 [Q_KEY_CODE_HOME] = QEMU_KEY_HOME,
1169 [Q_KEY_CODE_END] = QEMU_KEY_END,
1170 [Q_KEY_CODE_PGUP] = QEMU_KEY_PAGEUP,
1171 [Q_KEY_CODE_PGDN] = QEMU_KEY_PAGEDOWN,
1172 [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1173 [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1174 };
1175
1176 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1177 {
1178 int keysym;
1179
1180 keysym = qcode_to_keysym[qcode];
1181 if (keysym == 0) {
1182 return false;
1183 }
1184 kbd_put_keysym_console(s, keysym);
1185 return true;
1186 }
1187
1188 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1189 {
1190 int i;
1191
1192 for (i = 0; i < len && str[i]; i++) {
1193 kbd_put_keysym_console(s, str[i]);
1194 }
1195 }
1196
1197 void kbd_put_keysym(int keysym)
1198 {
1199 kbd_put_keysym_console(active_console, keysym);
1200 }
1201
1202 static void text_console_invalidate(void *opaque)
1203 {
1204 QemuConsole *s = (QemuConsole *) opaque;
1205
1206 if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1207 text_console_resize(s);
1208 }
1209 console_refresh(s);
1210 }
1211
1212 static void text_console_update(void *opaque, console_ch_t *chardata)
1213 {
1214 QemuConsole *s = (QemuConsole *) opaque;
1215 int i, j, src;
1216
1217 if (s->text_x[0] <= s->text_x[1]) {
1218 src = (s->y_base + s->text_y[0]) * s->width;
1219 chardata += s->text_y[0] * s->width;
1220 for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1221 for (j = 0; j < s->width; j++, src++) {
1222 console_write_ch(chardata ++,
1223 ATTR2CHTYPE(s->cells[src].ch,
1224 s->cells[src].t_attrib.fgcol,
1225 s->cells[src].t_attrib.bgcol,
1226 s->cells[src].t_attrib.bold));
1227 }
1228 dpy_text_update(s, s->text_x[0], s->text_y[0],
1229 s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1230 s->text_x[0] = s->width;
1231 s->text_y[0] = s->height;
1232 s->text_x[1] = 0;
1233 s->text_y[1] = 0;
1234 }
1235 if (s->cursor_invalidate) {
1236 dpy_text_cursor(s, s->x, s->y);
1237 s->cursor_invalidate = 0;
1238 }
1239 }
1240
1241 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1242 uint32_t head)
1243 {
1244 Object *obj;
1245 QemuConsole *s;
1246 int i;
1247
1248 obj = object_new(TYPE_QEMU_CONSOLE);
1249 s = QEMU_CONSOLE(obj);
1250 s->head = head;
1251 object_property_add_link(obj, "device", TYPE_DEVICE,
1252 (Object **)&s->device,
1253 object_property_allow_set_link,
1254 OBJ_PROP_LINK_UNREF_ON_RELEASE,
1255 &error_abort);
1256 object_property_add_uint32_ptr(obj, "head",
1257 &s->head, &error_abort);
1258
1259 if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1260 (console_type == GRAPHIC_CONSOLE))) {
1261 active_console = s;
1262 }
1263 s->ds = ds;
1264 s->console_type = console_type;
1265
1266 consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1267 if (console_type != GRAPHIC_CONSOLE) {
1268 s->index = nb_consoles;
1269 consoles[nb_consoles++] = s;
1270 } else {
1271 /* HACK: Put graphical consoles before text consoles. */
1272 for (i = nb_consoles; i > 0; i--) {
1273 if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1274 break;
1275 consoles[i] = consoles[i - 1];
1276 consoles[i]->index = i;
1277 }
1278 s->index = i;
1279 consoles[i] = s;
1280 nb_consoles++;
1281 }
1282 return s;
1283 }
1284
1285 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1286 {
1287 qemu_pixman_image_unref(surface->image);
1288 surface->image = NULL;
1289
1290 surface->format = PIXMAN_x8r8g8b8;
1291 surface->image = pixman_image_create_bits(surface->format,
1292 width, height,
1293 NULL, width * 4);
1294 assert(surface->image != NULL);
1295
1296 surface->flags = QEMU_ALLOCATED_FLAG;
1297 }
1298
1299 DisplaySurface *qemu_create_displaysurface(int width, int height)
1300 {
1301 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1302
1303 trace_displaysurface_create(surface, width, height);
1304 qemu_alloc_display(surface, width, height);
1305 return surface;
1306 }
1307
1308 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1309 pixman_format_code_t format,
1310 int linesize, uint8_t *data)
1311 {
1312 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1313
1314 trace_displaysurface_create_from(surface, width, height, format);
1315 surface->format = format;
1316 surface->image = pixman_image_create_bits(surface->format,
1317 width, height,
1318 (void *)data, linesize);
1319 assert(surface->image != NULL);
1320
1321 return surface;
1322 }
1323
1324 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1325 {
1326 DisplaySurface *surface = g_new0(DisplaySurface, 1);
1327
1328 trace_displaysurface_create_pixman(surface);
1329 surface->format = pixman_image_get_format(image);
1330 surface->image = pixman_image_ref(image);
1331
1332 return surface;
1333 }
1334
1335 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1336 void *unused)
1337 {
1338 void *data = pixman_image_get_data(image);
1339 uint32_t size = pixman_image_get_stride(image) *
1340 pixman_image_get_height(image);
1341 cpu_physical_memory_unmap(data, size, 0, 0);
1342 }
1343
1344 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1345 pixman_format_code_t format,
1346 int linesize, uint64_t addr)
1347 {
1348 DisplaySurface *surface;
1349 hwaddr size;
1350 void *data;
1351
1352 if (linesize == 0) {
1353 linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1354 }
1355
1356 size = (hwaddr)linesize * height;
1357 data = cpu_physical_memory_map(addr, &size, 0);
1358 if (size != (hwaddr)linesize * height) {
1359 cpu_physical_memory_unmap(data, size, 0, 0);
1360 return NULL;
1361 }
1362
1363 surface = qemu_create_displaysurface_from
1364 (width, height, format, linesize, data);
1365 pixman_image_set_destroy_function
1366 (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1367
1368 return surface;
1369 }
1370
1371 static DisplaySurface *qemu_create_message_surface(int w, int h,
1372 const char *msg)
1373 {
1374 DisplaySurface *surface = qemu_create_displaysurface(w, h);
1375 pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1376 pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1377 pixman_image_t *glyph;
1378 int len, x, y, i;
1379
1380 len = strlen(msg);
1381 x = (w / FONT_WIDTH - len) / 2;
1382 y = (h / FONT_HEIGHT - 1) / 2;
1383 for (i = 0; i < len; i++) {
1384 glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1385 qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1386 x+i, y, FONT_WIDTH, FONT_HEIGHT);
1387 qemu_pixman_image_unref(glyph);
1388 }
1389 return surface;
1390 }
1391
1392 void qemu_free_displaysurface(DisplaySurface *surface)
1393 {
1394 if (surface == NULL) {
1395 return;
1396 }
1397 trace_displaysurface_free(surface);
1398 qemu_pixman_image_unref(surface->image);
1399 g_free(surface);
1400 }
1401
1402 bool console_has_gl(QemuConsole *con)
1403 {
1404 return con->gl != NULL;
1405 }
1406
1407 bool console_has_gl_dmabuf(QemuConsole *con)
1408 {
1409 return con->gl != NULL && con->gl->ops->dpy_gl_scanout_dmabuf != NULL;
1410 }
1411
1412 void register_displaychangelistener(DisplayChangeListener *dcl)
1413 {
1414 static const char nodev[] =
1415 "This VM has no graphic display device.";
1416 static DisplaySurface *dummy;
1417 QemuConsole *con;
1418
1419 assert(!dcl->ds);
1420
1421 if (dcl->ops->dpy_gl_ctx_create) {
1422 /* display has opengl support */
1423 assert(dcl->con);
1424 if (dcl->con->gl) {
1425 fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1426 dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1427 exit(1);
1428 }
1429 dcl->con->gl = dcl;
1430 }
1431
1432 trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1433 dcl->ds = get_alloc_displaystate();
1434 QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1435 gui_setup_refresh(dcl->ds);
1436 if (dcl->con) {
1437 dcl->con->dcls++;
1438 con = dcl->con;
1439 } else {
1440 con = active_console;
1441 }
1442 if (dcl->ops->dpy_gfx_switch) {
1443 if (con) {
1444 dcl->ops->dpy_gfx_switch(dcl, con->surface);
1445 } else {
1446 if (!dummy) {
1447 dummy = qemu_create_message_surface(640, 480, nodev);
1448 }
1449 dcl->ops->dpy_gfx_switch(dcl, dummy);
1450 }
1451 }
1452 text_console_update_cursor(NULL);
1453 }
1454
1455 void update_displaychangelistener(DisplayChangeListener *dcl,
1456 uint64_t interval)
1457 {
1458 DisplayState *ds = dcl->ds;
1459
1460 dcl->update_interval = interval;
1461 if (!ds->refreshing && ds->update_interval > interval) {
1462 timer_mod(ds->gui_timer, ds->last_update + interval);
1463 }
1464 }
1465
1466 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1467 {
1468 DisplayState *ds = dcl->ds;
1469 trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1470 if (dcl->con) {
1471 dcl->con->dcls--;
1472 }
1473 QLIST_REMOVE(dcl, next);
1474 dcl->ds = NULL;
1475 gui_setup_refresh(ds);
1476 }
1477
1478 static void dpy_set_ui_info_timer(void *opaque)
1479 {
1480 QemuConsole *con = opaque;
1481
1482 con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1483 }
1484
1485 bool dpy_ui_info_supported(QemuConsole *con)
1486 {
1487 return con->hw_ops->ui_info != NULL;
1488 }
1489
1490 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1491 {
1492 assert(con != NULL);
1493
1494 if (!dpy_ui_info_supported(con)) {
1495 return -1;
1496 }
1497 if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1498 /* nothing changed -- ignore */
1499 return 0;
1500 }
1501
1502 /*
1503 * Typically we get a flood of these as the user resizes the window.
1504 * Wait until the dust has settled (one second without updates), then
1505 * go notify the guest.
1506 */
1507 con->ui_info = *info;
1508 timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1509 return 0;
1510 }
1511
1512 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1513 {
1514 DisplayState *s = con->ds;
1515 DisplayChangeListener *dcl;
1516 int width = w;
1517 int height = h;
1518
1519 if (con->surface) {
1520 width = surface_width(con->surface);
1521 height = surface_height(con->surface);
1522 }
1523 x = MAX(x, 0);
1524 y = MAX(y, 0);
1525 x = MIN(x, width);
1526 y = MIN(y, height);
1527 w = MIN(w, width - x);
1528 h = MIN(h, height - y);
1529
1530 if (!qemu_console_is_visible(con)) {
1531 return;
1532 }
1533 QLIST_FOREACH(dcl, &s->listeners, next) {
1534 if (con != (dcl->con ? dcl->con : active_console)) {
1535 continue;
1536 }
1537 if (dcl->ops->dpy_gfx_update) {
1538 dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1539 }
1540 }
1541 }
1542
1543 void dpy_gfx_replace_surface(QemuConsole *con,
1544 DisplaySurface *surface)
1545 {
1546 DisplayState *s = con->ds;
1547 DisplaySurface *old_surface = con->surface;
1548 DisplayChangeListener *dcl;
1549
1550 assert(old_surface != surface || surface == NULL);
1551
1552 con->surface = surface;
1553 QLIST_FOREACH(dcl, &s->listeners, next) {
1554 if (con != (dcl->con ? dcl->con : active_console)) {
1555 continue;
1556 }
1557 if (dcl->ops->dpy_gfx_switch) {
1558 dcl->ops->dpy_gfx_switch(dcl, surface);
1559 }
1560 }
1561 qemu_free_displaysurface(old_surface);
1562 }
1563
1564 bool dpy_gfx_check_format(QemuConsole *con,
1565 pixman_format_code_t format)
1566 {
1567 DisplayChangeListener *dcl;
1568 DisplayState *s = con->ds;
1569
1570 QLIST_FOREACH(dcl, &s->listeners, next) {
1571 if (dcl->con && dcl->con != con) {
1572 /* dcl bound to another console -> skip */
1573 continue;
1574 }
1575 if (dcl->ops->dpy_gfx_check_format) {
1576 if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1577 return false;
1578 }
1579 } else {
1580 /* default is to whitelist native 32 bpp only */
1581 if (format != qemu_default_pixman_format(32, true)) {
1582 return false;
1583 }
1584 }
1585 }
1586 return true;
1587 }
1588
1589 static void dpy_refresh(DisplayState *s)
1590 {
1591 DisplayChangeListener *dcl;
1592
1593 QLIST_FOREACH(dcl, &s->listeners, next) {
1594 if (dcl->ops->dpy_refresh) {
1595 dcl->ops->dpy_refresh(dcl);
1596 }
1597 }
1598 }
1599
1600 void dpy_text_cursor(QemuConsole *con, int x, int y)
1601 {
1602 DisplayState *s = con->ds;
1603 DisplayChangeListener *dcl;
1604
1605 if (!qemu_console_is_visible(con)) {
1606 return;
1607 }
1608 QLIST_FOREACH(dcl, &s->listeners, next) {
1609 if (con != (dcl->con ? dcl->con : active_console)) {
1610 continue;
1611 }
1612 if (dcl->ops->dpy_text_cursor) {
1613 dcl->ops->dpy_text_cursor(dcl, x, y);
1614 }
1615 }
1616 }
1617
1618 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1619 {
1620 DisplayState *s = con->ds;
1621 DisplayChangeListener *dcl;
1622
1623 if (!qemu_console_is_visible(con)) {
1624 return;
1625 }
1626 QLIST_FOREACH(dcl, &s->listeners, next) {
1627 if (con != (dcl->con ? dcl->con : active_console)) {
1628 continue;
1629 }
1630 if (dcl->ops->dpy_text_update) {
1631 dcl->ops->dpy_text_update(dcl, x, y, w, h);
1632 }
1633 }
1634 }
1635
1636 void dpy_text_resize(QemuConsole *con, int w, int h)
1637 {
1638 DisplayState *s = con->ds;
1639 DisplayChangeListener *dcl;
1640
1641 if (!qemu_console_is_visible(con)) {
1642 return;
1643 }
1644 QLIST_FOREACH(dcl, &s->listeners, next) {
1645 if (con != (dcl->con ? dcl->con : active_console)) {
1646 continue;
1647 }
1648 if (dcl->ops->dpy_text_resize) {
1649 dcl->ops->dpy_text_resize(dcl, w, h);
1650 }
1651 }
1652 }
1653
1654 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1655 {
1656 DisplayState *s = con->ds;
1657 DisplayChangeListener *dcl;
1658
1659 if (!qemu_console_is_visible(con)) {
1660 return;
1661 }
1662 QLIST_FOREACH(dcl, &s->listeners, next) {
1663 if (con != (dcl->con ? dcl->con : active_console)) {
1664 continue;
1665 }
1666 if (dcl->ops->dpy_mouse_set) {
1667 dcl->ops->dpy_mouse_set(dcl, x, y, on);
1668 }
1669 }
1670 }
1671
1672 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1673 {
1674 DisplayState *s = con->ds;
1675 DisplayChangeListener *dcl;
1676
1677 if (!qemu_console_is_visible(con)) {
1678 return;
1679 }
1680 QLIST_FOREACH(dcl, &s->listeners, next) {
1681 if (con != (dcl->con ? dcl->con : active_console)) {
1682 continue;
1683 }
1684 if (dcl->ops->dpy_cursor_define) {
1685 dcl->ops->dpy_cursor_define(dcl, cursor);
1686 }
1687 }
1688 }
1689
1690 bool dpy_cursor_define_supported(QemuConsole *con)
1691 {
1692 DisplayState *s = con->ds;
1693 DisplayChangeListener *dcl;
1694
1695 QLIST_FOREACH(dcl, &s->listeners, next) {
1696 if (dcl->ops->dpy_cursor_define) {
1697 return true;
1698 }
1699 }
1700 return false;
1701 }
1702
1703 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1704 struct QEMUGLParams *qparams)
1705 {
1706 assert(con->gl);
1707 return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1708 }
1709
1710 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1711 {
1712 assert(con->gl);
1713 con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1714 }
1715
1716 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1717 {
1718 assert(con->gl);
1719 return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1720 }
1721
1722 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1723 {
1724 assert(con->gl);
1725 return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1726 }
1727
1728 void dpy_gl_scanout_disable(QemuConsole *con)
1729 {
1730 assert(con->gl);
1731 if (con->gl->ops->dpy_gl_scanout_disable) {
1732 con->gl->ops->dpy_gl_scanout_disable(con->gl);
1733 } else {
1734 con->gl->ops->dpy_gl_scanout_texture(con->gl, 0, false, 0, 0,
1735 0, 0, 0, 0);
1736 }
1737 }
1738
1739 void dpy_gl_scanout_texture(QemuConsole *con,
1740 uint32_t backing_id,
1741 bool backing_y_0_top,
1742 uint32_t backing_width,
1743 uint32_t backing_height,
1744 uint32_t x, uint32_t y,
1745 uint32_t width, uint32_t height)
1746 {
1747 assert(con->gl);
1748 con->gl->ops->dpy_gl_scanout_texture(con->gl, backing_id,
1749 backing_y_0_top,
1750 backing_width, backing_height,
1751 x, y, width, height);
1752 }
1753
1754 void dpy_gl_scanout_dmabuf(QemuConsole *con,
1755 QemuDmaBuf *dmabuf)
1756 {
1757 assert(con->gl);
1758 con->gl->ops->dpy_gl_scanout_dmabuf(con->gl, dmabuf);
1759 }
1760
1761 void dpy_gl_cursor_dmabuf(QemuConsole *con,
1762 QemuDmaBuf *dmabuf,
1763 uint32_t pos_x, uint32_t pos_y)
1764 {
1765 assert(con->gl);
1766
1767 if (con->gl->ops->dpy_gl_cursor_dmabuf) {
1768 con->gl->ops->dpy_gl_cursor_dmabuf(con->gl, dmabuf, pos_x, pos_y);
1769 }
1770 }
1771
1772 void dpy_gl_release_dmabuf(QemuConsole *con,
1773 QemuDmaBuf *dmabuf)
1774 {
1775 assert(con->gl);
1776
1777 if (con->gl->ops->dpy_gl_release_dmabuf) {
1778 con->gl->ops->dpy_gl_release_dmabuf(con->gl, dmabuf);
1779 }
1780 }
1781
1782 void dpy_gl_update(QemuConsole *con,
1783 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1784 {
1785 assert(con->gl);
1786 con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1787 }
1788
1789 /***********************************************************/
1790 /* register display */
1791
1792 /* console.c internal use only */
1793 static DisplayState *get_alloc_displaystate(void)
1794 {
1795 if (!display_state) {
1796 display_state = g_new0(DisplayState, 1);
1797 cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1798 text_console_update_cursor, NULL);
1799 }
1800 return display_state;
1801 }
1802
1803 /*
1804 * Called by main(), after creating QemuConsoles
1805 * and before initializing ui (sdl/vnc/...).
1806 */
1807 DisplayState *init_displaystate(void)
1808 {
1809 gchar *name;
1810 int i;
1811
1812 get_alloc_displaystate();
1813 for (i = 0; i < nb_consoles; i++) {
1814 if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1815 consoles[i]->ds == NULL) {
1816 text_console_do_init(consoles[i]->chr, display_state);
1817 }
1818
1819 /* Hook up into the qom tree here (not in new_console()), once
1820 * all QemuConsoles are created and the order / numbering
1821 * doesn't change any more */
1822 name = g_strdup_printf("console[%d]", i);
1823 object_property_add_child(container_get(object_get_root(), "/backend"),
1824 name, OBJECT(consoles[i]), &error_abort);
1825 g_free(name);
1826 }
1827
1828 return display_state;
1829 }
1830
1831 void graphic_console_set_hwops(QemuConsole *con,
1832 const GraphicHwOps *hw_ops,
1833 void *opaque)
1834 {
1835 con->hw_ops = hw_ops;
1836 con->hw = opaque;
1837 }
1838
1839 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1840 const GraphicHwOps *hw_ops,
1841 void *opaque)
1842 {
1843 static const char noinit[] =
1844 "Guest has not initialized the display (yet).";
1845 int width = 640;
1846 int height = 480;
1847 QemuConsole *s;
1848 DisplayState *ds;
1849
1850 ds = get_alloc_displaystate();
1851 trace_console_gfx_new();
1852 s = new_console(ds, GRAPHIC_CONSOLE, head);
1853 s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1854 graphic_console_set_hwops(s, hw_ops, opaque);
1855 if (dev) {
1856 object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1857 &error_abort);
1858 }
1859
1860 s->surface = qemu_create_message_surface(width, height, noinit);
1861 return s;
1862 }
1863
1864 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1865 {
1866 if (index >= nb_consoles) {
1867 return NULL;
1868 }
1869 return consoles[index];
1870 }
1871
1872 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1873 {
1874 Object *obj;
1875 uint32_t h;
1876 int i;
1877
1878 for (i = 0; i < nb_consoles; i++) {
1879 if (!consoles[i]) {
1880 continue;
1881 }
1882 obj = object_property_get_link(OBJECT(consoles[i]),
1883 "device", &error_abort);
1884 if (DEVICE(obj) != dev) {
1885 continue;
1886 }
1887 h = object_property_get_uint(OBJECT(consoles[i]),
1888 "head", &error_abort);
1889 if (h != head) {
1890 continue;
1891 }
1892 return consoles[i];
1893 }
1894 return NULL;
1895 }
1896
1897 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1898 uint32_t head, Error **errp)
1899 {
1900 DeviceState *dev;
1901 QemuConsole *con;
1902
1903 dev = qdev_find_recursive(sysbus_get_default(), device_id);
1904 if (dev == NULL) {
1905 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1906 "Device '%s' not found", device_id);
1907 return NULL;
1908 }
1909
1910 con = qemu_console_lookup_by_device(dev, head);
1911 if (con == NULL) {
1912 error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1913 device_id, head);
1914 return NULL;
1915 }
1916
1917 return con;
1918 }
1919
1920 bool qemu_console_is_visible(QemuConsole *con)
1921 {
1922 return (con == active_console) || (con->dcls > 0);
1923 }
1924
1925 bool qemu_console_is_graphic(QemuConsole *con)
1926 {
1927 if (con == NULL) {
1928 con = active_console;
1929 }
1930 return con && (con->console_type == GRAPHIC_CONSOLE);
1931 }
1932
1933 bool qemu_console_is_fixedsize(QemuConsole *con)
1934 {
1935 if (con == NULL) {
1936 con = active_console;
1937 }
1938 return con && (con->console_type != TEXT_CONSOLE);
1939 }
1940
1941 bool qemu_console_is_gl_blocked(QemuConsole *con)
1942 {
1943 assert(con != NULL);
1944 return con->gl_block;
1945 }
1946
1947 char *qemu_console_get_label(QemuConsole *con)
1948 {
1949 if (con->console_type == GRAPHIC_CONSOLE) {
1950 if (con->device) {
1951 return g_strdup(object_get_typename(con->device));
1952 }
1953 return g_strdup("VGA");
1954 } else {
1955 if (con->chr && con->chr->label) {
1956 return g_strdup(con->chr->label);
1957 }
1958 return g_strdup_printf("vc%d", con->index);
1959 }
1960 }
1961
1962 int qemu_console_get_index(QemuConsole *con)
1963 {
1964 if (con == NULL) {
1965 con = active_console;
1966 }
1967 return con ? con->index : -1;
1968 }
1969
1970 uint32_t qemu_console_get_head(QemuConsole *con)
1971 {
1972 if (con == NULL) {
1973 con = active_console;
1974 }
1975 return con ? con->head : -1;
1976 }
1977
1978 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1979 {
1980 assert(con != NULL);
1981 return &con->ui_info;
1982 }
1983
1984 int qemu_console_get_width(QemuConsole *con, int fallback)
1985 {
1986 if (con == NULL) {
1987 con = active_console;
1988 }
1989 return con ? surface_width(con->surface) : fallback;
1990 }
1991
1992 int qemu_console_get_height(QemuConsole *con, int fallback)
1993 {
1994 if (con == NULL) {
1995 con = active_console;
1996 }
1997 return con ? surface_height(con->surface) : fallback;
1998 }
1999
2000 static void vc_chr_set_echo(Chardev *chr, bool echo)
2001 {
2002 VCChardev *drv = VC_CHARDEV(chr);
2003 QemuConsole *s = drv->console;
2004
2005 s->echo = echo;
2006 }
2007
2008 static void text_console_update_cursor_timer(void)
2009 {
2010 timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
2011 + CONSOLE_CURSOR_PERIOD / 2);
2012 }
2013
2014 static void text_console_update_cursor(void *opaque)
2015 {
2016 QemuConsole *s;
2017 int i, count = 0;
2018
2019 cursor_visible_phase = !cursor_visible_phase;
2020
2021 for (i = 0; i < nb_consoles; i++) {
2022 s = consoles[i];
2023 if (qemu_console_is_graphic(s) ||
2024 !qemu_console_is_visible(s)) {
2025 continue;
2026 }
2027 count++;
2028 graphic_hw_invalidate(s);
2029 }
2030
2031 if (count) {
2032 text_console_update_cursor_timer();
2033 }
2034 }
2035
2036 static const GraphicHwOps text_console_ops = {
2037 .invalidate = text_console_invalidate,
2038 .text_update = text_console_update,
2039 };
2040
2041 static void text_console_do_init(Chardev *chr, DisplayState *ds)
2042 {
2043 VCChardev *drv = VC_CHARDEV(chr);
2044 QemuConsole *s = drv->console;
2045 int g_width = 80 * FONT_WIDTH;
2046 int g_height = 24 * FONT_HEIGHT;
2047
2048 s->out_fifo.buf = s->out_fifo_buf;
2049 s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
2050 s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
2051 s->ds = ds;
2052
2053 s->y_displayed = 0;
2054 s->y_base = 0;
2055 s->total_height = DEFAULT_BACKSCROLL;
2056 s->x = 0;
2057 s->y = 0;
2058 if (!s->surface) {
2059 if (active_console && active_console->surface) {
2060 g_width = surface_width(active_console->surface);
2061 g_height = surface_height(active_console->surface);
2062 }
2063 s->surface = qemu_create_displaysurface(g_width, g_height);
2064 }
2065
2066 s->hw_ops = &text_console_ops;
2067 s->hw = s;
2068
2069 /* Set text attribute defaults */
2070 s->t_attrib_default.bold = 0;
2071 s->t_attrib_default.uline = 0;
2072 s->t_attrib_default.blink = 0;
2073 s->t_attrib_default.invers = 0;
2074 s->t_attrib_default.unvisible = 0;
2075 s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2076 s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2077 /* set current text attributes to default */
2078 s->t_attrib = s->t_attrib_default;
2079 text_console_resize(s);
2080
2081 if (chr->label) {
2082 char msg[128];
2083 int len;
2084
2085 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2086 len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2087 vc_chr_write(chr, (uint8_t *)msg, len);
2088 s->t_attrib = s->t_attrib_default;
2089 }
2090
2091 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
2092 }
2093
2094 static void vc_chr_open(Chardev *chr,
2095 ChardevBackend *backend,
2096 bool *be_opened,
2097 Error **errp)
2098 {
2099 ChardevVC *vc = backend->u.vc.data;
2100 VCChardev *drv = VC_CHARDEV(chr);
2101 QemuConsole *s;
2102 unsigned width = 0;
2103 unsigned height = 0;
2104
2105 if (vc->has_width) {
2106 width = vc->width;
2107 } else if (vc->has_cols) {
2108 width = vc->cols * FONT_WIDTH;
2109 }
2110
2111 if (vc->has_height) {
2112 height = vc->height;
2113 } else if (vc->has_rows) {
2114 height = vc->rows * FONT_HEIGHT;
2115 }
2116
2117 trace_console_txt_new(width, height);
2118 if (width == 0 || height == 0) {
2119 s = new_console(NULL, TEXT_CONSOLE, 0);
2120 } else {
2121 s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2122 s->surface = qemu_create_displaysurface(width, height);
2123 }
2124
2125 if (!s) {
2126 error_setg(errp, "cannot create text console");
2127 return;
2128 }
2129
2130 s->chr = chr;
2131 drv->console = s;
2132
2133 if (display_state) {
2134 text_console_do_init(chr, display_state);
2135 }
2136
2137 /* console/chardev init sometimes completes elsewhere in a 2nd
2138 * stage, so defer OPENED events until they are fully initialized
2139 */
2140 *be_opened = false;
2141 }
2142
2143 void qemu_console_resize(QemuConsole *s, int width, int height)
2144 {
2145 DisplaySurface *surface;
2146
2147 assert(s->console_type == GRAPHIC_CONSOLE);
2148
2149 if (s->surface && (s->surface->flags & QEMU_ALLOCATED_FLAG) &&
2150 pixman_image_get_width(s->surface->image) == width &&
2151 pixman_image_get_height(s->surface->image) == height) {
2152 return;
2153 }
2154
2155 surface = qemu_create_displaysurface(width, height);
2156 dpy_gfx_replace_surface(s, surface);
2157 }
2158
2159 DisplaySurface *qemu_console_surface(QemuConsole *console)
2160 {
2161 return console->surface;
2162 }
2163
2164 PixelFormat qemu_default_pixelformat(int bpp)
2165 {
2166 pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2167 PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2168 return pf;
2169 }
2170
2171 void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp)
2172 {
2173 int val;
2174 ChardevVC *vc;
2175
2176 backend->type = CHARDEV_BACKEND_KIND_VC;
2177 vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2178 qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2179
2180 val = qemu_opt_get_number(opts, "width", 0);
2181 if (val != 0) {
2182 vc->has_width = true;
2183 vc->width = val;
2184 }
2185
2186 val = qemu_opt_get_number(opts, "height", 0);
2187 if (val != 0) {
2188 vc->has_height = true;
2189 vc->height = val;
2190 }
2191
2192 val = qemu_opt_get_number(opts, "cols", 0);
2193 if (val != 0) {
2194 vc->has_cols = true;
2195 vc->cols = val;
2196 }
2197
2198 val = qemu_opt_get_number(opts, "rows", 0);
2199 if (val != 0) {
2200 vc->has_rows = true;
2201 vc->rows = val;
2202 }
2203 }
2204
2205 static const TypeInfo qemu_console_info = {
2206 .name = TYPE_QEMU_CONSOLE,
2207 .parent = TYPE_OBJECT,
2208 .instance_size = sizeof(QemuConsole),
2209 .class_size = sizeof(QemuConsoleClass),
2210 };
2211
2212 static void char_vc_class_init(ObjectClass *oc, void *data)
2213 {
2214 ChardevClass *cc = CHARDEV_CLASS(oc);
2215
2216 cc->parse = qemu_chr_parse_vc;
2217 cc->open = vc_chr_open;
2218 cc->chr_write = vc_chr_write;
2219 cc->chr_set_echo = vc_chr_set_echo;
2220 }
2221
2222 static const TypeInfo char_vc_type_info = {
2223 .name = TYPE_CHARDEV_VC,
2224 .parent = TYPE_CHARDEV,
2225 .instance_size = sizeof(VCChardev),
2226 .class_init = char_vc_class_init,
2227 };
2228
2229 void qemu_console_early_init(void)
2230 {
2231 /* set the default vc driver */
2232 if (!object_class_by_name(TYPE_CHARDEV_VC)) {
2233 type_register(&char_vc_type_info);
2234 }
2235 }
2236
2237 static void register_types(void)
2238 {
2239 type_register_static(&qemu_console_info);
2240 }
2241
2242 type_init(register_types);
QEmu