xref: /qemu/ui/console.c (revision 0c0c1fd9)
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 "sysemu/char.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 
127     /* Graphic console state.  */
128     Object *device;
129     uint32_t head;
130     QemuUIInfo ui_info;
131     QEMUTimer *ui_timer;
132     const GraphicHwOps *hw_ops;
133     void *hw;
134 
135     /* Text console state */
136     int width;
137     int height;
138     int total_height;
139     int backscroll_height;
140     int x, y;
141     int x_saved, y_saved;
142     int y_displayed;
143     int y_base;
144     TextAttributes t_attrib_default; /* default text attributes */
145     TextAttributes t_attrib; /* currently active text attributes */
146     TextCell *cells;
147     int text_x[2], text_y[2], cursor_invalidate;
148     int echo;
149 
150     int update_x0;
151     int update_y0;
152     int update_x1;
153     int update_y1;
154 
155     enum TTYState state;
156     int esc_params[MAX_ESC_PARAMS];
157     int nb_esc_params;
158 
159     CharDriverState *chr;
160     /* fifo for key pressed */
161     QEMUFIFO out_fifo;
162     uint8_t out_fifo_buf[16];
163     QEMUTimer *kbd_timer;
164 };
165 
166 struct DisplayState {
167     QEMUTimer *gui_timer;
168     uint64_t last_update;
169     uint64_t update_interval;
170     bool refreshing;
171     bool have_gfx;
172     bool have_text;
173 
174     QLIST_HEAD(, DisplayChangeListener) listeners;
175 };
176 
177 static DisplayState *display_state;
178 static QemuConsole *active_console;
179 static QemuConsole **consoles;
180 static int nb_consoles = 0;
181 static bool cursor_visible_phase;
182 static QEMUTimer *cursor_timer;
183 
184 static void text_console_do_init(CharDriverState *chr, DisplayState *ds);
185 static void dpy_refresh(DisplayState *s);
186 static DisplayState *get_alloc_displaystate(void);
187 static void text_console_update_cursor_timer(void);
188 static void text_console_update_cursor(void *opaque);
189 
190 static void gui_update(void *opaque)
191 {
192     uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
193     uint64_t dcl_interval;
194     DisplayState *ds = opaque;
195     DisplayChangeListener *dcl;
196     int i;
197 
198     ds->refreshing = true;
199     dpy_refresh(ds);
200     ds->refreshing = false;
201 
202     QLIST_FOREACH(dcl, &ds->listeners, next) {
203         dcl_interval = dcl->update_interval ?
204             dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
205         if (interval > dcl_interval) {
206             interval = dcl_interval;
207         }
208     }
209     if (ds->update_interval != interval) {
210         ds->update_interval = interval;
211         for (i = 0; i < nb_consoles; i++) {
212             if (consoles[i]->hw_ops->update_interval) {
213                 consoles[i]->hw_ops->update_interval(consoles[i]->hw, interval);
214             }
215         }
216         trace_console_refresh(interval);
217     }
218     ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
219     timer_mod(ds->gui_timer, ds->last_update + interval);
220 }
221 
222 static void gui_setup_refresh(DisplayState *ds)
223 {
224     DisplayChangeListener *dcl;
225     bool need_timer = false;
226     bool have_gfx = false;
227     bool have_text = false;
228 
229     QLIST_FOREACH(dcl, &ds->listeners, next) {
230         if (dcl->ops->dpy_refresh != NULL) {
231             need_timer = true;
232         }
233         if (dcl->ops->dpy_gfx_update != NULL) {
234             have_gfx = true;
235         }
236         if (dcl->ops->dpy_text_update != NULL) {
237             have_text = true;
238         }
239     }
240 
241     if (need_timer && ds->gui_timer == NULL) {
242         ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
243         timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
244     }
245     if (!need_timer && ds->gui_timer != NULL) {
246         timer_del(ds->gui_timer);
247         timer_free(ds->gui_timer);
248         ds->gui_timer = NULL;
249     }
250 
251     ds->have_gfx = have_gfx;
252     ds->have_text = have_text;
253 }
254 
255 void graphic_hw_update(QemuConsole *con)
256 {
257     if (!con) {
258         con = active_console;
259     }
260     if (con && con->hw_ops->gfx_update) {
261         con->hw_ops->gfx_update(con->hw);
262     }
263 }
264 
265 void graphic_hw_gl_block(QemuConsole *con, bool block)
266 {
267     if (!con) {
268         con = active_console;
269     }
270     if (con && con->hw_ops->gl_block) {
271         con->hw_ops->gl_block(con->hw, block);
272     }
273 }
274 
275 void graphic_hw_invalidate(QemuConsole *con)
276 {
277     if (!con) {
278         con = active_console;
279     }
280     if (con && con->hw_ops->invalidate) {
281         con->hw_ops->invalidate(con->hw);
282     }
283 }
284 
285 static void ppm_save(const char *filename, DisplaySurface *ds,
286                      Error **errp)
287 {
288     int width = pixman_image_get_width(ds->image);
289     int height = pixman_image_get_height(ds->image);
290     int fd;
291     FILE *f;
292     int y;
293     int ret;
294     pixman_image_t *linebuf;
295 
296     trace_ppm_save(filename, ds);
297     fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
298     if (fd == -1) {
299         error_setg(errp, "failed to open file '%s': %s", filename,
300                    strerror(errno));
301         return;
302     }
303     f = fdopen(fd, "wb");
304     ret = fprintf(f, "P6\n%d %d\n%d\n", width, height, 255);
305     if (ret < 0) {
306         linebuf = NULL;
307         goto write_err;
308     }
309     linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
310     for (y = 0; y < height; y++) {
311         qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y);
312         clearerr(f);
313         ret = fwrite(pixman_image_get_data(linebuf), 1,
314                      pixman_image_get_stride(linebuf), f);
315         (void)ret;
316         if (ferror(f)) {
317             goto write_err;
318         }
319     }
320 
321 out:
322     qemu_pixman_image_unref(linebuf);
323     fclose(f);
324     return;
325 
326 write_err:
327     error_setg(errp, "failed to write to file '%s': %s", filename,
328                strerror(errno));
329     unlink(filename);
330     goto out;
331 }
332 
333 void qmp_screendump(const char *filename, Error **errp)
334 {
335     QemuConsole *con = qemu_console_lookup_by_index(0);
336     DisplaySurface *surface;
337 
338     if (con == NULL) {
339         error_setg(errp, "There is no QemuConsole I can screendump from.");
340         return;
341     }
342 
343     graphic_hw_update(con);
344     surface = qemu_console_surface(con);
345     ppm_save(filename, surface, errp);
346 }
347 
348 void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
349 {
350     if (!con) {
351         con = active_console;
352     }
353     if (con && con->hw_ops->text_update) {
354         con->hw_ops->text_update(con->hw, chardata);
355     }
356 }
357 
358 static void vga_fill_rect(QemuConsole *con,
359                           int posx, int posy, int width, int height,
360                           pixman_color_t color)
361 {
362     DisplaySurface *surface = qemu_console_surface(con);
363     pixman_rectangle16_t rect = {
364         .x = posx, .y = posy, .width = width, .height = height
365     };
366 
367     pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
368                                  &color, 1, &rect);
369 }
370 
371 /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
372 static void vga_bitblt(QemuConsole *con,
373                        int xs, int ys, int xd, int yd, int w, int h)
374 {
375     DisplaySurface *surface = qemu_console_surface(con);
376 
377     pixman_image_composite(PIXMAN_OP_SRC,
378                            surface->image, NULL, surface->image,
379                            xs, ys, 0, 0, xd, yd, w, h);
380 }
381 
382 /***********************************************************/
383 /* basic char display */
384 
385 #define FONT_HEIGHT 16
386 #define FONT_WIDTH 8
387 
388 #include "vgafont.h"
389 
390 #define QEMU_RGB(r, g, b)                                               \
391     { .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
392 
393 static const pixman_color_t color_table_rgb[2][8] = {
394     {   /* dark */
395         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
396         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
397         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
398         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
399         [QEMU_COLOR_RED]     = QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
400         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
401         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
402         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
403     },
404     {   /* bright */
405         [QEMU_COLOR_BLACK]   = QEMU_RGB(0x00, 0x00, 0x00),  /* black */
406         [QEMU_COLOR_BLUE]    = QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
407         [QEMU_COLOR_GREEN]   = QEMU_RGB(0x00, 0xff, 0x00),  /* green */
408         [QEMU_COLOR_CYAN]    = QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
409         [QEMU_COLOR_RED]     = QEMU_RGB(0xff, 0x00, 0x00),  /* red */
410         [QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
411         [QEMU_COLOR_YELLOW]  = QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
412         [QEMU_COLOR_WHITE]   = QEMU_RGB(0xff, 0xff, 0xff),  /* white */
413     }
414 };
415 
416 static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
417                           TextAttributes *t_attrib)
418 {
419     static pixman_image_t *glyphs[256];
420     DisplaySurface *surface = qemu_console_surface(s);
421     pixman_color_t fgcol, bgcol;
422 
423     if (t_attrib->invers) {
424         bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
425         fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
426     } else {
427         fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
428         bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
429     }
430 
431     if (!glyphs[ch]) {
432         glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
433     }
434     qemu_pixman_glyph_render(glyphs[ch], surface->image,
435                              &fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
436 }
437 
438 static void text_console_resize(QemuConsole *s)
439 {
440     TextCell *cells, *c, *c1;
441     int w1, x, y, last_width;
442 
443     last_width = s->width;
444     s->width = surface_width(s->surface) / FONT_WIDTH;
445     s->height = surface_height(s->surface) / FONT_HEIGHT;
446 
447     w1 = last_width;
448     if (s->width < w1)
449         w1 = s->width;
450 
451     cells = g_new(TextCell, s->width * s->total_height);
452     for(y = 0; y < s->total_height; y++) {
453         c = &cells[y * s->width];
454         if (w1 > 0) {
455             c1 = &s->cells[y * last_width];
456             for(x = 0; x < w1; x++) {
457                 *c++ = *c1++;
458             }
459         }
460         for(x = w1; x < s->width; x++) {
461             c->ch = ' ';
462             c->t_attrib = s->t_attrib_default;
463             c++;
464         }
465     }
466     g_free(s->cells);
467     s->cells = cells;
468 }
469 
470 static inline void text_update_xy(QemuConsole *s, int x, int y)
471 {
472     s->text_x[0] = MIN(s->text_x[0], x);
473     s->text_x[1] = MAX(s->text_x[1], x);
474     s->text_y[0] = MIN(s->text_y[0], y);
475     s->text_y[1] = MAX(s->text_y[1], y);
476 }
477 
478 static void invalidate_xy(QemuConsole *s, int x, int y)
479 {
480     if (!qemu_console_is_visible(s)) {
481         return;
482     }
483     if (s->update_x0 > x * FONT_WIDTH)
484         s->update_x0 = x * FONT_WIDTH;
485     if (s->update_y0 > y * FONT_HEIGHT)
486         s->update_y0 = y * FONT_HEIGHT;
487     if (s->update_x1 < (x + 1) * FONT_WIDTH)
488         s->update_x1 = (x + 1) * FONT_WIDTH;
489     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
490         s->update_y1 = (y + 1) * FONT_HEIGHT;
491 }
492 
493 static void update_xy(QemuConsole *s, int x, int y)
494 {
495     TextCell *c;
496     int y1, y2;
497 
498     if (s->ds->have_text) {
499         text_update_xy(s, x, y);
500     }
501 
502     y1 = (s->y_base + y) % s->total_height;
503     y2 = y1 - s->y_displayed;
504     if (y2 < 0) {
505         y2 += s->total_height;
506     }
507     if (y2 < s->height) {
508         c = &s->cells[y1 * s->width + x];
509         vga_putcharxy(s, x, y2, c->ch,
510                       &(c->t_attrib));
511         invalidate_xy(s, x, y2);
512     }
513 }
514 
515 static void console_show_cursor(QemuConsole *s, int show)
516 {
517     TextCell *c;
518     int y, y1;
519     int x = s->x;
520 
521     if (s->ds->have_text) {
522         s->cursor_invalidate = 1;
523     }
524 
525     if (x >= s->width) {
526         x = s->width - 1;
527     }
528     y1 = (s->y_base + s->y) % s->total_height;
529     y = y1 - s->y_displayed;
530     if (y < 0) {
531         y += s->total_height;
532     }
533     if (y < s->height) {
534         c = &s->cells[y1 * s->width + x];
535         if (show && cursor_visible_phase) {
536             TextAttributes t_attrib = s->t_attrib_default;
537             t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
538             vga_putcharxy(s, x, y, c->ch, &t_attrib);
539         } else {
540             vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
541         }
542         invalidate_xy(s, x, y);
543     }
544 }
545 
546 static void console_refresh(QemuConsole *s)
547 {
548     DisplaySurface *surface = qemu_console_surface(s);
549     TextCell *c;
550     int x, y, y1;
551 
552     if (s->ds->have_text) {
553         s->text_x[0] = 0;
554         s->text_y[0] = 0;
555         s->text_x[1] = s->width - 1;
556         s->text_y[1] = s->height - 1;
557         s->cursor_invalidate = 1;
558     }
559 
560     vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
561                   color_table_rgb[0][QEMU_COLOR_BLACK]);
562     y1 = s->y_displayed;
563     for (y = 0; y < s->height; y++) {
564         c = s->cells + y1 * s->width;
565         for (x = 0; x < s->width; x++) {
566             vga_putcharxy(s, x, y, c->ch,
567                           &(c->t_attrib));
568             c++;
569         }
570         if (++y1 == s->total_height) {
571             y1 = 0;
572         }
573     }
574     console_show_cursor(s, 1);
575     dpy_gfx_update(s, 0, 0,
576                    surface_width(surface), surface_height(surface));
577 }
578 
579 static void console_scroll(QemuConsole *s, int ydelta)
580 {
581     int i, y1;
582 
583     if (ydelta > 0) {
584         for(i = 0; i < ydelta; i++) {
585             if (s->y_displayed == s->y_base)
586                 break;
587             if (++s->y_displayed == s->total_height)
588                 s->y_displayed = 0;
589         }
590     } else {
591         ydelta = -ydelta;
592         i = s->backscroll_height;
593         if (i > s->total_height - s->height)
594             i = s->total_height - s->height;
595         y1 = s->y_base - i;
596         if (y1 < 0)
597             y1 += s->total_height;
598         for(i = 0; i < ydelta; i++) {
599             if (s->y_displayed == y1)
600                 break;
601             if (--s->y_displayed < 0)
602                 s->y_displayed = s->total_height - 1;
603         }
604     }
605     console_refresh(s);
606 }
607 
608 static void console_put_lf(QemuConsole *s)
609 {
610     TextCell *c;
611     int x, y1;
612 
613     s->y++;
614     if (s->y >= s->height) {
615         s->y = s->height - 1;
616 
617         if (s->y_displayed == s->y_base) {
618             if (++s->y_displayed == s->total_height)
619                 s->y_displayed = 0;
620         }
621         if (++s->y_base == s->total_height)
622             s->y_base = 0;
623         if (s->backscroll_height < s->total_height)
624             s->backscroll_height++;
625         y1 = (s->y_base + s->height - 1) % s->total_height;
626         c = &s->cells[y1 * s->width];
627         for(x = 0; x < s->width; x++) {
628             c->ch = ' ';
629             c->t_attrib = s->t_attrib_default;
630             c++;
631         }
632         if (s->y_displayed == s->y_base) {
633             if (s->ds->have_text) {
634                 s->text_x[0] = 0;
635                 s->text_y[0] = 0;
636                 s->text_x[1] = s->width - 1;
637                 s->text_y[1] = s->height - 1;
638             }
639 
640             vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
641                        s->width * FONT_WIDTH,
642                        (s->height - 1) * FONT_HEIGHT);
643             vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
644                           s->width * FONT_WIDTH, FONT_HEIGHT,
645                           color_table_rgb[0][s->t_attrib_default.bgcol]);
646             s->update_x0 = 0;
647             s->update_y0 = 0;
648             s->update_x1 = s->width * FONT_WIDTH;
649             s->update_y1 = s->height * FONT_HEIGHT;
650         }
651     }
652 }
653 
654 /* Set console attributes depending on the current escape codes.
655  * NOTE: I know this code is not very efficient (checking every color for it
656  * self) but it is more readable and better maintainable.
657  */
658 static void console_handle_escape(QemuConsole *s)
659 {
660     int i;
661 
662     for (i=0; i<s->nb_esc_params; i++) {
663         switch (s->esc_params[i]) {
664             case 0: /* reset all console attributes to default */
665                 s->t_attrib = s->t_attrib_default;
666                 break;
667             case 1:
668                 s->t_attrib.bold = 1;
669                 break;
670             case 4:
671                 s->t_attrib.uline = 1;
672                 break;
673             case 5:
674                 s->t_attrib.blink = 1;
675                 break;
676             case 7:
677                 s->t_attrib.invers = 1;
678                 break;
679             case 8:
680                 s->t_attrib.unvisible = 1;
681                 break;
682             case 22:
683                 s->t_attrib.bold = 0;
684                 break;
685             case 24:
686                 s->t_attrib.uline = 0;
687                 break;
688             case 25:
689                 s->t_attrib.blink = 0;
690                 break;
691             case 27:
692                 s->t_attrib.invers = 0;
693                 break;
694             case 28:
695                 s->t_attrib.unvisible = 0;
696                 break;
697             /* set foreground color */
698             case 30:
699                 s->t_attrib.fgcol = QEMU_COLOR_BLACK;
700                 break;
701             case 31:
702                 s->t_attrib.fgcol = QEMU_COLOR_RED;
703                 break;
704             case 32:
705                 s->t_attrib.fgcol = QEMU_COLOR_GREEN;
706                 break;
707             case 33:
708                 s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
709                 break;
710             case 34:
711                 s->t_attrib.fgcol = QEMU_COLOR_BLUE;
712                 break;
713             case 35:
714                 s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
715                 break;
716             case 36:
717                 s->t_attrib.fgcol = QEMU_COLOR_CYAN;
718                 break;
719             case 37:
720                 s->t_attrib.fgcol = QEMU_COLOR_WHITE;
721                 break;
722             /* set background color */
723             case 40:
724                 s->t_attrib.bgcol = QEMU_COLOR_BLACK;
725                 break;
726             case 41:
727                 s->t_attrib.bgcol = QEMU_COLOR_RED;
728                 break;
729             case 42:
730                 s->t_attrib.bgcol = QEMU_COLOR_GREEN;
731                 break;
732             case 43:
733                 s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
734                 break;
735             case 44:
736                 s->t_attrib.bgcol = QEMU_COLOR_BLUE;
737                 break;
738             case 45:
739                 s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
740                 break;
741             case 46:
742                 s->t_attrib.bgcol = QEMU_COLOR_CYAN;
743                 break;
744             case 47:
745                 s->t_attrib.bgcol = QEMU_COLOR_WHITE;
746                 break;
747         }
748     }
749 }
750 
751 static void console_clear_xy(QemuConsole *s, int x, int y)
752 {
753     int y1 = (s->y_base + y) % s->total_height;
754     TextCell *c = &s->cells[y1 * s->width + x];
755     c->ch = ' ';
756     c->t_attrib = s->t_attrib_default;
757     update_xy(s, x, y);
758 }
759 
760 static void console_put_one(QemuConsole *s, int ch)
761 {
762     TextCell *c;
763     int y1;
764     if (s->x >= s->width) {
765         /* line wrap */
766         s->x = 0;
767         console_put_lf(s);
768     }
769     y1 = (s->y_base + s->y) % s->total_height;
770     c = &s->cells[y1 * s->width + s->x];
771     c->ch = ch;
772     c->t_attrib = s->t_attrib;
773     update_xy(s, s->x, s->y);
774     s->x++;
775 }
776 
777 static void console_respond_str(QemuConsole *s, const char *buf)
778 {
779     while (*buf) {
780         console_put_one(s, *buf);
781         buf++;
782     }
783 }
784 
785 /* set cursor, checking bounds */
786 static void set_cursor(QemuConsole *s, int x, int y)
787 {
788     if (x < 0) {
789         x = 0;
790     }
791     if (y < 0) {
792         y = 0;
793     }
794     if (y >= s->height) {
795         y = s->height - 1;
796     }
797     if (x >= s->width) {
798         x = s->width - 1;
799     }
800 
801     s->x = x;
802     s->y = y;
803 }
804 
805 static void console_putchar(QemuConsole *s, int ch)
806 {
807     int i;
808     int x, y;
809     char response[40];
810 
811     switch(s->state) {
812     case TTY_STATE_NORM:
813         switch(ch) {
814         case '\r':  /* carriage return */
815             s->x = 0;
816             break;
817         case '\n':  /* newline */
818             console_put_lf(s);
819             break;
820         case '\b':  /* backspace */
821             if (s->x > 0)
822                 s->x--;
823             break;
824         case '\t':  /* tabspace */
825             if (s->x + (8 - (s->x % 8)) > s->width) {
826                 s->x = 0;
827                 console_put_lf(s);
828             } else {
829                 s->x = s->x + (8 - (s->x % 8));
830             }
831             break;
832         case '\a':  /* alert aka. bell */
833             /* TODO: has to be implemented */
834             break;
835         case 14:
836             /* SI (shift in), character set 0 (ignored) */
837             break;
838         case 15:
839             /* SO (shift out), character set 1 (ignored) */
840             break;
841         case 27:    /* esc (introducing an escape sequence) */
842             s->state = TTY_STATE_ESC;
843             break;
844         default:
845             console_put_one(s, ch);
846             break;
847         }
848         break;
849     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
850         if (ch == '[') {
851             for(i=0;i<MAX_ESC_PARAMS;i++)
852                 s->esc_params[i] = 0;
853             s->nb_esc_params = 0;
854             s->state = TTY_STATE_CSI;
855         } else {
856             s->state = TTY_STATE_NORM;
857         }
858         break;
859     case TTY_STATE_CSI: /* handle escape sequence parameters */
860         if (ch >= '0' && ch <= '9') {
861             if (s->nb_esc_params < MAX_ESC_PARAMS) {
862                 int *param = &s->esc_params[s->nb_esc_params];
863                 int digit = (ch - '0');
864 
865                 *param = (*param <= (INT_MAX - digit) / 10) ?
866                          *param * 10 + digit : INT_MAX;
867             }
868         } else {
869             if (s->nb_esc_params < MAX_ESC_PARAMS)
870                 s->nb_esc_params++;
871             if (ch == ';')
872                 break;
873             trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
874                                       ch, s->nb_esc_params);
875             s->state = TTY_STATE_NORM;
876             switch(ch) {
877             case 'A':
878                 /* move cursor up */
879                 if (s->esc_params[0] == 0) {
880                     s->esc_params[0] = 1;
881                 }
882                 set_cursor(s, s->x, s->y - s->esc_params[0]);
883                 break;
884             case 'B':
885                 /* move cursor down */
886                 if (s->esc_params[0] == 0) {
887                     s->esc_params[0] = 1;
888                 }
889                 set_cursor(s, s->x, s->y + s->esc_params[0]);
890                 break;
891             case 'C':
892                 /* move cursor right */
893                 if (s->esc_params[0] == 0) {
894                     s->esc_params[0] = 1;
895                 }
896                 set_cursor(s, s->x + s->esc_params[0], s->y);
897                 break;
898             case 'D':
899                 /* move cursor left */
900                 if (s->esc_params[0] == 0) {
901                     s->esc_params[0] = 1;
902                 }
903                 set_cursor(s, s->x - s->esc_params[0], s->y);
904                 break;
905             case 'G':
906                 /* move cursor to column */
907                 set_cursor(s, s->esc_params[0] - 1, s->y);
908                 break;
909             case 'f':
910             case 'H':
911                 /* move cursor to row, column */
912                 set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
913                 break;
914             case 'J':
915                 switch (s->esc_params[0]) {
916                 case 0:
917                     /* clear to end of screen */
918                     for (y = s->y; y < s->height; y++) {
919                         for (x = 0; x < s->width; x++) {
920                             if (y == s->y && x < s->x) {
921                                 continue;
922                             }
923                             console_clear_xy(s, x, y);
924                         }
925                     }
926                     break;
927                 case 1:
928                     /* clear from beginning of screen */
929                     for (y = 0; y <= s->y; y++) {
930                         for (x = 0; x < s->width; x++) {
931                             if (y == s->y && x > s->x) {
932                                 break;
933                             }
934                             console_clear_xy(s, x, y);
935                         }
936                     }
937                     break;
938                 case 2:
939                     /* clear entire screen */
940                     for (y = 0; y <= s->height; y++) {
941                         for (x = 0; x < s->width; x++) {
942                             console_clear_xy(s, x, y);
943                         }
944                     }
945                     break;
946                 }
947                 break;
948             case 'K':
949                 switch (s->esc_params[0]) {
950                 case 0:
951                     /* clear to eol */
952                     for(x = s->x; x < s->width; x++) {
953                         console_clear_xy(s, x, s->y);
954                     }
955                     break;
956                 case 1:
957                     /* clear from beginning of line */
958                     for (x = 0; x <= s->x; x++) {
959                         console_clear_xy(s, x, s->y);
960                     }
961                     break;
962                 case 2:
963                     /* clear entire line */
964                     for(x = 0; x < s->width; x++) {
965                         console_clear_xy(s, x, s->y);
966                     }
967                     break;
968                 }
969                 break;
970             case 'm':
971                 console_handle_escape(s);
972                 break;
973             case 'n':
974                 switch (s->esc_params[0]) {
975                 case 5:
976                     /* report console status (always succeed)*/
977                     console_respond_str(s, "\033[0n");
978                     break;
979                 case 6:
980                     /* report cursor position */
981                     sprintf(response, "\033[%d;%dR",
982                            (s->y_base + s->y) % s->total_height + 1,
983                             s->x + 1);
984                     console_respond_str(s, response);
985                     break;
986                 }
987                 break;
988             case 's':
989                 /* save cursor position */
990                 s->x_saved = s->x;
991                 s->y_saved = s->y;
992                 break;
993             case 'u':
994                 /* restore cursor position */
995                 s->x = s->x_saved;
996                 s->y = s->y_saved;
997                 break;
998             default:
999                 trace_console_putchar_unhandled(ch);
1000                 break;
1001             }
1002             break;
1003         }
1004     }
1005 }
1006 
1007 void console_select(unsigned int index)
1008 {
1009     DisplayChangeListener *dcl;
1010     QemuConsole *s;
1011 
1012     trace_console_select(index);
1013     s = qemu_console_lookup_by_index(index);
1014     if (s) {
1015         DisplayState *ds = s->ds;
1016 
1017         active_console = s;
1018         if (ds->have_gfx) {
1019             QLIST_FOREACH(dcl, &ds->listeners, next) {
1020                 if (dcl->con != NULL) {
1021                     continue;
1022                 }
1023                 if (dcl->ops->dpy_gfx_switch) {
1024                     dcl->ops->dpy_gfx_switch(dcl, s->surface);
1025                 }
1026             }
1027             dpy_gfx_update(s, 0, 0, surface_width(s->surface),
1028                            surface_height(s->surface));
1029         }
1030         if (ds->have_text) {
1031             dpy_text_resize(s, s->width, s->height);
1032         }
1033         text_console_update_cursor(NULL);
1034     }
1035 }
1036 
1037 static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
1038 {
1039     QemuConsole *s = chr->opaque;
1040     int i;
1041 
1042     s->update_x0 = s->width * FONT_WIDTH;
1043     s->update_y0 = s->height * FONT_HEIGHT;
1044     s->update_x1 = 0;
1045     s->update_y1 = 0;
1046     console_show_cursor(s, 0);
1047     for(i = 0; i < len; i++) {
1048         console_putchar(s, buf[i]);
1049     }
1050     console_show_cursor(s, 1);
1051     if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
1052         dpy_gfx_update(s, s->update_x0, s->update_y0,
1053                        s->update_x1 - s->update_x0,
1054                        s->update_y1 - s->update_y0);
1055     }
1056     return len;
1057 }
1058 
1059 static void kbd_send_chars(void *opaque)
1060 {
1061     QemuConsole *s = opaque;
1062     int len;
1063     uint8_t buf[16];
1064 
1065     len = qemu_chr_be_can_write(s->chr);
1066     if (len > s->out_fifo.count)
1067         len = s->out_fifo.count;
1068     if (len > 0) {
1069         if (len > sizeof(buf))
1070             len = sizeof(buf);
1071         qemu_fifo_read(&s->out_fifo, buf, len);
1072         qemu_chr_be_write(s->chr, buf, len);
1073     }
1074     /* characters are pending: we send them a bit later (XXX:
1075        horrible, should change char device API) */
1076     if (s->out_fifo.count > 0) {
1077         timer_mod(s->kbd_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1);
1078     }
1079 }
1080 
1081 /* called when an ascii key is pressed */
1082 void kbd_put_keysym_console(QemuConsole *s, int keysym)
1083 {
1084     uint8_t buf[16], *q;
1085     int c;
1086 
1087     if (!s || (s->console_type == GRAPHIC_CONSOLE))
1088         return;
1089 
1090     switch(keysym) {
1091     case QEMU_KEY_CTRL_UP:
1092         console_scroll(s, -1);
1093         break;
1094     case QEMU_KEY_CTRL_DOWN:
1095         console_scroll(s, 1);
1096         break;
1097     case QEMU_KEY_CTRL_PAGEUP:
1098         console_scroll(s, -10);
1099         break;
1100     case QEMU_KEY_CTRL_PAGEDOWN:
1101         console_scroll(s, 10);
1102         break;
1103     default:
1104         /* convert the QEMU keysym to VT100 key string */
1105         q = buf;
1106         if (keysym >= 0xe100 && keysym <= 0xe11f) {
1107             *q++ = '\033';
1108             *q++ = '[';
1109             c = keysym - 0xe100;
1110             if (c >= 10)
1111                 *q++ = '0' + (c / 10);
1112             *q++ = '0' + (c % 10);
1113             *q++ = '~';
1114         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
1115             *q++ = '\033';
1116             *q++ = '[';
1117             *q++ = keysym & 0xff;
1118         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
1119             console_puts(s->chr, (const uint8_t *) "\r", 1);
1120             *q++ = '\n';
1121         } else {
1122             *q++ = keysym;
1123         }
1124         if (s->echo) {
1125             console_puts(s->chr, buf, q - buf);
1126         }
1127         if (s->chr->chr_read) {
1128             qemu_fifo_write(&s->out_fifo, buf, q - buf);
1129             kbd_send_chars(s);
1130         }
1131         break;
1132     }
1133 }
1134 
1135 static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
1136     [Q_KEY_CODE_UP]     = QEMU_KEY_UP,
1137     [Q_KEY_CODE_DOWN]   = QEMU_KEY_DOWN,
1138     [Q_KEY_CODE_RIGHT]  = QEMU_KEY_RIGHT,
1139     [Q_KEY_CODE_LEFT]   = QEMU_KEY_LEFT,
1140     [Q_KEY_CODE_HOME]   = QEMU_KEY_HOME,
1141     [Q_KEY_CODE_END]    = QEMU_KEY_END,
1142     [Q_KEY_CODE_PGUP]   = QEMU_KEY_PAGEUP,
1143     [Q_KEY_CODE_PGDN]   = QEMU_KEY_PAGEDOWN,
1144     [Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
1145     [Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
1146 };
1147 
1148 bool kbd_put_qcode_console(QemuConsole *s, int qcode)
1149 {
1150     int keysym;
1151 
1152     keysym = qcode_to_keysym[qcode];
1153     if (keysym == 0) {
1154         return false;
1155     }
1156     kbd_put_keysym_console(s, keysym);
1157     return true;
1158 }
1159 
1160 void kbd_put_string_console(QemuConsole *s, const char *str, int len)
1161 {
1162     int i;
1163 
1164     for (i = 0; i < len && str[i]; i++) {
1165         kbd_put_keysym_console(s, str[i]);
1166     }
1167 }
1168 
1169 void kbd_put_keysym(int keysym)
1170 {
1171     kbd_put_keysym_console(active_console, keysym);
1172 }
1173 
1174 static void text_console_invalidate(void *opaque)
1175 {
1176     QemuConsole *s = (QemuConsole *) opaque;
1177 
1178     if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
1179         text_console_resize(s);
1180     }
1181     console_refresh(s);
1182 }
1183 
1184 static void text_console_update(void *opaque, console_ch_t *chardata)
1185 {
1186     QemuConsole *s = (QemuConsole *) opaque;
1187     int i, j, src;
1188 
1189     if (s->text_x[0] <= s->text_x[1]) {
1190         src = (s->y_base + s->text_y[0]) * s->width;
1191         chardata += s->text_y[0] * s->width;
1192         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
1193             for (j = 0; j < s->width; j++, src++) {
1194                 console_write_ch(chardata ++,
1195                                  ATTR2CHTYPE(s->cells[src].ch,
1196                                              s->cells[src].t_attrib.fgcol,
1197                                              s->cells[src].t_attrib.bgcol,
1198                                              s->cells[src].t_attrib.bold));
1199             }
1200         dpy_text_update(s, s->text_x[0], s->text_y[0],
1201                         s->text_x[1] - s->text_x[0], i - s->text_y[0]);
1202         s->text_x[0] = s->width;
1203         s->text_y[0] = s->height;
1204         s->text_x[1] = 0;
1205         s->text_y[1] = 0;
1206     }
1207     if (s->cursor_invalidate) {
1208         dpy_text_cursor(s, s->x, s->y);
1209         s->cursor_invalidate = 0;
1210     }
1211 }
1212 
1213 static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
1214                                 uint32_t head)
1215 {
1216     Object *obj;
1217     QemuConsole *s;
1218     int i;
1219 
1220     obj = object_new(TYPE_QEMU_CONSOLE);
1221     s = QEMU_CONSOLE(obj);
1222     s->head = head;
1223     object_property_add_link(obj, "device", TYPE_DEVICE,
1224                              (Object **)&s->device,
1225                              object_property_allow_set_link,
1226                              OBJ_PROP_LINK_UNREF_ON_RELEASE,
1227                              &error_abort);
1228     object_property_add_uint32_ptr(obj, "head",
1229                                    &s->head, &error_abort);
1230 
1231     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
1232         (console_type == GRAPHIC_CONSOLE))) {
1233         active_console = s;
1234     }
1235     s->ds = ds;
1236     s->console_type = console_type;
1237 
1238     consoles = g_realloc(consoles, sizeof(*consoles) * (nb_consoles+1));
1239     if (console_type != GRAPHIC_CONSOLE) {
1240         s->index = nb_consoles;
1241         consoles[nb_consoles++] = s;
1242     } else {
1243         /* HACK: Put graphical consoles before text consoles.  */
1244         for (i = nb_consoles; i > 0; i--) {
1245             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
1246                 break;
1247             consoles[i] = consoles[i - 1];
1248             consoles[i]->index = i;
1249         }
1250         s->index = i;
1251         consoles[i] = s;
1252         nb_consoles++;
1253     }
1254     return s;
1255 }
1256 
1257 static void qemu_alloc_display(DisplaySurface *surface, int width, int height)
1258 {
1259     qemu_pixman_image_unref(surface->image);
1260     surface->image = NULL;
1261 
1262     surface->format = PIXMAN_x8r8g8b8;
1263     surface->image = pixman_image_create_bits(surface->format,
1264                                               width, height,
1265                                               NULL, width * 4);
1266     assert(surface->image != NULL);
1267 
1268     surface->flags = QEMU_ALLOCATED_FLAG;
1269 }
1270 
1271 DisplaySurface *qemu_create_displaysurface(int width, int height)
1272 {
1273     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1274 
1275     trace_displaysurface_create(surface, width, height);
1276     qemu_alloc_display(surface, width, height);
1277     return surface;
1278 }
1279 
1280 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
1281                                                 pixman_format_code_t format,
1282                                                 int linesize, uint8_t *data)
1283 {
1284     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1285 
1286     trace_displaysurface_create_from(surface, width, height, format);
1287     surface->format = format;
1288     surface->image = pixman_image_create_bits(surface->format,
1289                                               width, height,
1290                                               (void *)data, linesize);
1291     assert(surface->image != NULL);
1292 
1293     return surface;
1294 }
1295 
1296 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
1297 {
1298     DisplaySurface *surface = g_new0(DisplaySurface, 1);
1299 
1300     trace_displaysurface_create_pixman(surface);
1301     surface->format = pixman_image_get_format(image);
1302     surface->image = pixman_image_ref(image);
1303 
1304     return surface;
1305 }
1306 
1307 static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
1308                                                void *unused)
1309 {
1310     void *data = pixman_image_get_data(image);
1311     uint32_t size = pixman_image_get_stride(image) *
1312         pixman_image_get_height(image);
1313     cpu_physical_memory_unmap(data, size, 0, 0);
1314 }
1315 
1316 DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
1317                                                     pixman_format_code_t format,
1318                                                     int linesize, uint64_t addr)
1319 {
1320     DisplaySurface *surface;
1321     hwaddr size;
1322     void *data;
1323 
1324     if (linesize == 0) {
1325         linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
1326     }
1327 
1328     size = (hwaddr)linesize * height;
1329     data = cpu_physical_memory_map(addr, &size, 0);
1330     if (size != (hwaddr)linesize * height) {
1331         cpu_physical_memory_unmap(data, size, 0, 0);
1332         return NULL;
1333     }
1334 
1335     surface = qemu_create_displaysurface_from
1336         (width, height, format, linesize, data);
1337     pixman_image_set_destroy_function
1338         (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
1339 
1340     return surface;
1341 }
1342 
1343 static DisplaySurface *qemu_create_message_surface(int w, int h,
1344                                                    const char *msg)
1345 {
1346     DisplaySurface *surface = qemu_create_displaysurface(w, h);
1347     pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
1348     pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
1349     pixman_image_t *glyph;
1350     int len, x, y, i;
1351 
1352     len = strlen(msg);
1353     x = (w / FONT_WIDTH  - len) / 2;
1354     y = (h / FONT_HEIGHT - 1)   / 2;
1355     for (i = 0; i < len; i++) {
1356         glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
1357         qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
1358                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
1359         qemu_pixman_image_unref(glyph);
1360     }
1361     return surface;
1362 }
1363 
1364 void qemu_free_displaysurface(DisplaySurface *surface)
1365 {
1366     if (surface == NULL) {
1367         return;
1368     }
1369     trace_displaysurface_free(surface);
1370     qemu_pixman_image_unref(surface->image);
1371     g_free(surface);
1372 }
1373 
1374 bool console_has_gl(QemuConsole *con)
1375 {
1376     return con->gl != NULL;
1377 }
1378 
1379 void register_displaychangelistener(DisplayChangeListener *dcl)
1380 {
1381     static const char nodev[] =
1382         "This VM has no graphic display device.";
1383     static DisplaySurface *dummy;
1384     QemuConsole *con;
1385 
1386     if (dcl->ops->dpy_gl_ctx_create) {
1387         /* display has opengl support */
1388         assert(dcl->con);
1389         if (dcl->con->gl) {
1390             fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
1391                     dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
1392             exit(1);
1393         }
1394         dcl->con->gl = dcl;
1395     }
1396 
1397     trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
1398     dcl->ds = get_alloc_displaystate();
1399     QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
1400     gui_setup_refresh(dcl->ds);
1401     if (dcl->con) {
1402         dcl->con->dcls++;
1403         con = dcl->con;
1404     } else {
1405         con = active_console;
1406     }
1407     if (dcl->ops->dpy_gfx_switch) {
1408         if (con) {
1409             dcl->ops->dpy_gfx_switch(dcl, con->surface);
1410         } else {
1411             if (!dummy) {
1412                 dummy = qemu_create_message_surface(640, 480, nodev);
1413             }
1414             dcl->ops->dpy_gfx_switch(dcl, dummy);
1415         }
1416     }
1417     text_console_update_cursor(NULL);
1418 }
1419 
1420 void update_displaychangelistener(DisplayChangeListener *dcl,
1421                                   uint64_t interval)
1422 {
1423     DisplayState *ds = dcl->ds;
1424 
1425     dcl->update_interval = interval;
1426     if (!ds->refreshing && ds->update_interval > interval) {
1427         timer_mod(ds->gui_timer, ds->last_update + interval);
1428     }
1429 }
1430 
1431 void unregister_displaychangelistener(DisplayChangeListener *dcl)
1432 {
1433     DisplayState *ds = dcl->ds;
1434     trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
1435     if (dcl->con) {
1436         dcl->con->dcls--;
1437     }
1438     QLIST_REMOVE(dcl, next);
1439     gui_setup_refresh(ds);
1440 }
1441 
1442 static void dpy_set_ui_info_timer(void *opaque)
1443 {
1444     QemuConsole *con = opaque;
1445 
1446     con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
1447 }
1448 
1449 bool dpy_ui_info_supported(QemuConsole *con)
1450 {
1451     return con->hw_ops->ui_info != NULL;
1452 }
1453 
1454 int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)
1455 {
1456     assert(con != NULL);
1457 
1458     if (!dpy_ui_info_supported(con)) {
1459         return -1;
1460     }
1461     if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
1462         /* nothing changed -- ignore */
1463         return 0;
1464     }
1465 
1466     /*
1467      * Typically we get a flood of these as the user resizes the window.
1468      * Wait until the dust has settled (one second without updates), then
1469      * go notify the guest.
1470      */
1471     con->ui_info = *info;
1472     timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);
1473     return 0;
1474 }
1475 
1476 void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
1477 {
1478     DisplayState *s = con->ds;
1479     DisplayChangeListener *dcl;
1480     int width = w;
1481     int height = h;
1482 
1483     if (con->surface) {
1484         width = surface_width(con->surface);
1485         height = surface_height(con->surface);
1486     }
1487     x = MAX(x, 0);
1488     y = MAX(y, 0);
1489     x = MIN(x, width);
1490     y = MIN(y, height);
1491     w = MIN(w, width - x);
1492     h = MIN(h, height - y);
1493 
1494     if (!qemu_console_is_visible(con)) {
1495         return;
1496     }
1497     QLIST_FOREACH(dcl, &s->listeners, next) {
1498         if (con != (dcl->con ? dcl->con : active_console)) {
1499             continue;
1500         }
1501         if (dcl->ops->dpy_gfx_update) {
1502             dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
1503         }
1504     }
1505 }
1506 
1507 void dpy_gfx_replace_surface(QemuConsole *con,
1508                              DisplaySurface *surface)
1509 {
1510     DisplayState *s = con->ds;
1511     DisplaySurface *old_surface = con->surface;
1512     DisplayChangeListener *dcl;
1513 
1514     con->surface = surface;
1515     QLIST_FOREACH(dcl, &s->listeners, next) {
1516         if (con != (dcl->con ? dcl->con : active_console)) {
1517             continue;
1518         }
1519         if (dcl->ops->dpy_gfx_switch) {
1520             dcl->ops->dpy_gfx_switch(dcl, surface);
1521         }
1522     }
1523     qemu_free_displaysurface(old_surface);
1524 }
1525 
1526 bool dpy_gfx_check_format(QemuConsole *con,
1527                           pixman_format_code_t format)
1528 {
1529     DisplayChangeListener *dcl;
1530     DisplayState *s = con->ds;
1531 
1532     QLIST_FOREACH(dcl, &s->listeners, next) {
1533         if (dcl->con && dcl->con != con) {
1534             /* dcl bound to another console -> skip */
1535             continue;
1536         }
1537         if (dcl->ops->dpy_gfx_check_format) {
1538             if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
1539                 return false;
1540             }
1541         } else {
1542             /* default is to whitelist native 32 bpp only */
1543             if (format != qemu_default_pixman_format(32, true)) {
1544                 return false;
1545             }
1546         }
1547     }
1548     return true;
1549 }
1550 
1551 static void dpy_refresh(DisplayState *s)
1552 {
1553     DisplayChangeListener *dcl;
1554 
1555     QLIST_FOREACH(dcl, &s->listeners, next) {
1556         if (dcl->ops->dpy_refresh) {
1557             dcl->ops->dpy_refresh(dcl);
1558         }
1559     }
1560 }
1561 
1562 void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
1563                   int dst_x, int dst_y, int w, int h)
1564 {
1565     DisplayState *s = con->ds;
1566     DisplayChangeListener *dcl;
1567 
1568     if (!qemu_console_is_visible(con)) {
1569         return;
1570     }
1571     QLIST_FOREACH(dcl, &s->listeners, next) {
1572         if (con != (dcl->con ? dcl->con : active_console)) {
1573             continue;
1574         }
1575         if (dcl->ops->dpy_gfx_copy) {
1576             dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
1577         } else { /* TODO */
1578             dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
1579         }
1580     }
1581 }
1582 
1583 void dpy_text_cursor(QemuConsole *con, int x, int y)
1584 {
1585     DisplayState *s = con->ds;
1586     DisplayChangeListener *dcl;
1587 
1588     if (!qemu_console_is_visible(con)) {
1589         return;
1590     }
1591     QLIST_FOREACH(dcl, &s->listeners, next) {
1592         if (con != (dcl->con ? dcl->con : active_console)) {
1593             continue;
1594         }
1595         if (dcl->ops->dpy_text_cursor) {
1596             dcl->ops->dpy_text_cursor(dcl, x, y);
1597         }
1598     }
1599 }
1600 
1601 void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
1602 {
1603     DisplayState *s = con->ds;
1604     DisplayChangeListener *dcl;
1605 
1606     if (!qemu_console_is_visible(con)) {
1607         return;
1608     }
1609     QLIST_FOREACH(dcl, &s->listeners, next) {
1610         if (con != (dcl->con ? dcl->con : active_console)) {
1611             continue;
1612         }
1613         if (dcl->ops->dpy_text_update) {
1614             dcl->ops->dpy_text_update(dcl, x, y, w, h);
1615         }
1616     }
1617 }
1618 
1619 void dpy_text_resize(QemuConsole *con, int w, int h)
1620 {
1621     DisplayState *s = con->ds;
1622     DisplayChangeListener *dcl;
1623 
1624     if (!qemu_console_is_visible(con)) {
1625         return;
1626     }
1627     QLIST_FOREACH(dcl, &s->listeners, next) {
1628         if (con != (dcl->con ? dcl->con : active_console)) {
1629             continue;
1630         }
1631         if (dcl->ops->dpy_text_resize) {
1632             dcl->ops->dpy_text_resize(dcl, w, h);
1633         }
1634     }
1635 }
1636 
1637 void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
1638 {
1639     DisplayState *s = con->ds;
1640     DisplayChangeListener *dcl;
1641 
1642     if (!qemu_console_is_visible(con)) {
1643         return;
1644     }
1645     QLIST_FOREACH(dcl, &s->listeners, next) {
1646         if (con != (dcl->con ? dcl->con : active_console)) {
1647             continue;
1648         }
1649         if (dcl->ops->dpy_mouse_set) {
1650             dcl->ops->dpy_mouse_set(dcl, x, y, on);
1651         }
1652     }
1653 }
1654 
1655 void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
1656 {
1657     DisplayState *s = con->ds;
1658     DisplayChangeListener *dcl;
1659 
1660     if (!qemu_console_is_visible(con)) {
1661         return;
1662     }
1663     QLIST_FOREACH(dcl, &s->listeners, next) {
1664         if (con != (dcl->con ? dcl->con : active_console)) {
1665             continue;
1666         }
1667         if (dcl->ops->dpy_cursor_define) {
1668             dcl->ops->dpy_cursor_define(dcl, cursor);
1669         }
1670     }
1671 }
1672 
1673 bool dpy_cursor_define_supported(QemuConsole *con)
1674 {
1675     DisplayState *s = con->ds;
1676     DisplayChangeListener *dcl;
1677 
1678     QLIST_FOREACH(dcl, &s->listeners, next) {
1679         if (dcl->ops->dpy_cursor_define) {
1680             return true;
1681         }
1682     }
1683     return false;
1684 }
1685 
1686 QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
1687                                 struct QEMUGLParams *qparams)
1688 {
1689     assert(con->gl);
1690     return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
1691 }
1692 
1693 void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
1694 {
1695     assert(con->gl);
1696     con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
1697 }
1698 
1699 int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
1700 {
1701     assert(con->gl);
1702     return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
1703 }
1704 
1705 QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con)
1706 {
1707     assert(con->gl);
1708     return con->gl->ops->dpy_gl_ctx_get_current(con->gl);
1709 }
1710 
1711 void dpy_gl_scanout(QemuConsole *con,
1712                     uint32_t backing_id, bool backing_y_0_top,
1713                     uint32_t backing_width, uint32_t backing_height,
1714                     uint32_t x, uint32_t y, uint32_t width, uint32_t height)
1715 {
1716     assert(con->gl);
1717     con->gl->ops->dpy_gl_scanout(con->gl, backing_id,
1718                                  backing_y_0_top,
1719                                  backing_width, backing_height,
1720                                  x, y, width, height);
1721 }
1722 
1723 void dpy_gl_update(QemuConsole *con,
1724                    uint32_t x, uint32_t y, uint32_t w, uint32_t h)
1725 {
1726     assert(con->gl);
1727     con->gl->ops->dpy_gl_update(con->gl, x, y, w, h);
1728 }
1729 
1730 /***********************************************************/
1731 /* register display */
1732 
1733 /* console.c internal use only */
1734 static DisplayState *get_alloc_displaystate(void)
1735 {
1736     if (!display_state) {
1737         display_state = g_new0(DisplayState, 1);
1738         cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
1739                                     text_console_update_cursor, NULL);
1740     }
1741     return display_state;
1742 }
1743 
1744 /*
1745  * Called by main(), after creating QemuConsoles
1746  * and before initializing ui (sdl/vnc/...).
1747  */
1748 DisplayState *init_displaystate(void)
1749 {
1750     gchar *name;
1751     int i;
1752 
1753     get_alloc_displaystate();
1754     for (i = 0; i < nb_consoles; i++) {
1755         if (consoles[i]->console_type != GRAPHIC_CONSOLE &&
1756             consoles[i]->ds == NULL) {
1757             text_console_do_init(consoles[i]->chr, display_state);
1758         }
1759 
1760         /* Hook up into the qom tree here (not in new_console()), once
1761          * all QemuConsoles are created and the order / numbering
1762          * doesn't change any more */
1763         name = g_strdup_printf("console[%d]", i);
1764         object_property_add_child(container_get(object_get_root(), "/backend"),
1765                                   name, OBJECT(consoles[i]), &error_abort);
1766         g_free(name);
1767     }
1768 
1769     return display_state;
1770 }
1771 
1772 void graphic_console_set_hwops(QemuConsole *con,
1773                                const GraphicHwOps *hw_ops,
1774                                void *opaque)
1775 {
1776     con->hw_ops = hw_ops;
1777     con->hw = opaque;
1778 }
1779 
1780 QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
1781                                   const GraphicHwOps *hw_ops,
1782                                   void *opaque)
1783 {
1784     static const char noinit[] =
1785         "Guest has not initialized the display (yet).";
1786     int width = 640;
1787     int height = 480;
1788     QemuConsole *s;
1789     DisplayState *ds;
1790 
1791     ds = get_alloc_displaystate();
1792     trace_console_gfx_new();
1793     s = new_console(ds, GRAPHIC_CONSOLE, head);
1794     s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);
1795     graphic_console_set_hwops(s, hw_ops, opaque);
1796     if (dev) {
1797         object_property_set_link(OBJECT(s), OBJECT(dev), "device",
1798                                  &error_abort);
1799     }
1800 
1801     s->surface = qemu_create_message_surface(width, height, noinit);
1802     return s;
1803 }
1804 
1805 QemuConsole *qemu_console_lookup_by_index(unsigned int index)
1806 {
1807     if (index >= nb_consoles) {
1808         return NULL;
1809     }
1810     return consoles[index];
1811 }
1812 
1813 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
1814 {
1815     Object *obj;
1816     uint32_t h;
1817     int i;
1818 
1819     for (i = 0; i < nb_consoles; i++) {
1820         if (!consoles[i]) {
1821             continue;
1822         }
1823         obj = object_property_get_link(OBJECT(consoles[i]),
1824                                        "device", &error_abort);
1825         if (DEVICE(obj) != dev) {
1826             continue;
1827         }
1828         h = object_property_get_int(OBJECT(consoles[i]),
1829                                     "head", &error_abort);
1830         if (h != head) {
1831             continue;
1832         }
1833         return consoles[i];
1834     }
1835     return NULL;
1836 }
1837 
1838 QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
1839                                                 uint32_t head, Error **errp)
1840 {
1841     DeviceState *dev;
1842     QemuConsole *con;
1843 
1844     dev = qdev_find_recursive(sysbus_get_default(), device_id);
1845     if (dev == NULL) {
1846         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1847                   "Device '%s' not found", device_id);
1848         return NULL;
1849     }
1850 
1851     con = qemu_console_lookup_by_device(dev, head);
1852     if (con == NULL) {
1853         error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
1854                    device_id, head);
1855         return NULL;
1856     }
1857 
1858     return con;
1859 }
1860 
1861 bool qemu_console_is_visible(QemuConsole *con)
1862 {
1863     return (con == active_console) || (con->dcls > 0);
1864 }
1865 
1866 bool qemu_console_is_graphic(QemuConsole *con)
1867 {
1868     if (con == NULL) {
1869         con = active_console;
1870     }
1871     return con && (con->console_type == GRAPHIC_CONSOLE);
1872 }
1873 
1874 bool qemu_console_is_fixedsize(QemuConsole *con)
1875 {
1876     if (con == NULL) {
1877         con = active_console;
1878     }
1879     return con && (con->console_type != TEXT_CONSOLE);
1880 }
1881 
1882 char *qemu_console_get_label(QemuConsole *con)
1883 {
1884     if (con->console_type == GRAPHIC_CONSOLE) {
1885         if (con->device) {
1886             return g_strdup(object_get_typename(con->device));
1887         }
1888         return g_strdup("VGA");
1889     } else {
1890         if (con->chr && con->chr->label) {
1891             return g_strdup(con->chr->label);
1892         }
1893         return g_strdup_printf("vc%d", con->index);
1894     }
1895 }
1896 
1897 int qemu_console_get_index(QemuConsole *con)
1898 {
1899     if (con == NULL) {
1900         con = active_console;
1901     }
1902     return con ? con->index : -1;
1903 }
1904 
1905 uint32_t qemu_console_get_head(QemuConsole *con)
1906 {
1907     if (con == NULL) {
1908         con = active_console;
1909     }
1910     return con ? con->head : -1;
1911 }
1912 
1913 QemuUIInfo *qemu_console_get_ui_info(QemuConsole *con)
1914 {
1915     assert(con != NULL);
1916     return &con->ui_info;
1917 }
1918 
1919 int qemu_console_get_width(QemuConsole *con, int fallback)
1920 {
1921     if (con == NULL) {
1922         con = active_console;
1923     }
1924     return con ? surface_width(con->surface) : fallback;
1925 }
1926 
1927 int qemu_console_get_height(QemuConsole *con, int fallback)
1928 {
1929     if (con == NULL) {
1930         con = active_console;
1931     }
1932     return con ? surface_height(con->surface) : fallback;
1933 }
1934 
1935 static void text_console_set_echo(CharDriverState *chr, bool echo)
1936 {
1937     QemuConsole *s = chr->opaque;
1938 
1939     s->echo = echo;
1940 }
1941 
1942 static void text_console_update_cursor_timer(void)
1943 {
1944     timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
1945               + CONSOLE_CURSOR_PERIOD / 2);
1946 }
1947 
1948 static void text_console_update_cursor(void *opaque)
1949 {
1950     QemuConsole *s;
1951     int i, count = 0;
1952 
1953     cursor_visible_phase = !cursor_visible_phase;
1954 
1955     for (i = 0; i < nb_consoles; i++) {
1956         s = consoles[i];
1957         if (qemu_console_is_graphic(s) ||
1958             !qemu_console_is_visible(s)) {
1959             continue;
1960         }
1961         count++;
1962         graphic_hw_invalidate(s);
1963     }
1964 
1965     if (count) {
1966         text_console_update_cursor_timer();
1967     }
1968 }
1969 
1970 static const GraphicHwOps text_console_ops = {
1971     .invalidate  = text_console_invalidate,
1972     .text_update = text_console_update,
1973 };
1974 
1975 static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
1976 {
1977     QemuConsole *s;
1978     int g_width = 80 * FONT_WIDTH;
1979     int g_height = 24 * FONT_HEIGHT;
1980 
1981     s = chr->opaque;
1982 
1983     chr->chr_write = console_puts;
1984 
1985     s->out_fifo.buf = s->out_fifo_buf;
1986     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
1987     s->kbd_timer = timer_new_ms(QEMU_CLOCK_REALTIME, kbd_send_chars, s);
1988     s->ds = ds;
1989 
1990     s->y_displayed = 0;
1991     s->y_base = 0;
1992     s->total_height = DEFAULT_BACKSCROLL;
1993     s->x = 0;
1994     s->y = 0;
1995     if (!s->surface) {
1996         if (active_console && active_console->surface) {
1997             g_width = surface_width(active_console->surface);
1998             g_height = surface_height(active_console->surface);
1999         }
2000         s->surface = qemu_create_displaysurface(g_width, g_height);
2001     }
2002 
2003     s->hw_ops = &text_console_ops;
2004     s->hw = s;
2005 
2006     /* Set text attribute defaults */
2007     s->t_attrib_default.bold = 0;
2008     s->t_attrib_default.uline = 0;
2009     s->t_attrib_default.blink = 0;
2010     s->t_attrib_default.invers = 0;
2011     s->t_attrib_default.unvisible = 0;
2012     s->t_attrib_default.fgcol = QEMU_COLOR_WHITE;
2013     s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
2014     /* set current text attributes to default */
2015     s->t_attrib = s->t_attrib_default;
2016     text_console_resize(s);
2017 
2018     if (chr->label) {
2019         char msg[128];
2020         int len;
2021 
2022         s->t_attrib.bgcol = QEMU_COLOR_BLUE;
2023         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
2024         console_puts(chr, (uint8_t*)msg, len);
2025         s->t_attrib = s->t_attrib_default;
2026     }
2027 
2028     qemu_chr_be_generic_open(chr);
2029     if (chr->init)
2030         chr->init(chr);
2031 }
2032 
2033 static CharDriverState *text_console_init(ChardevVC *vc, Error **errp)
2034 {
2035     ChardevCommon *common = qapi_ChardevVC_base(vc);
2036     CharDriverState *chr;
2037     QemuConsole *s;
2038     unsigned width = 0;
2039     unsigned height = 0;
2040 
2041     chr = qemu_chr_alloc(common, errp);
2042     if (!chr) {
2043         return NULL;
2044     }
2045 
2046     if (vc->has_width) {
2047         width = vc->width;
2048     } else if (vc->has_cols) {
2049         width = vc->cols * FONT_WIDTH;
2050     }
2051 
2052     if (vc->has_height) {
2053         height = vc->height;
2054     } else if (vc->has_rows) {
2055         height = vc->rows * FONT_HEIGHT;
2056     }
2057 
2058     trace_console_txt_new(width, height);
2059     if (width == 0 || height == 0) {
2060         s = new_console(NULL, TEXT_CONSOLE, 0);
2061     } else {
2062         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
2063         s->surface = qemu_create_displaysurface(width, height);
2064     }
2065 
2066     if (!s) {
2067         g_free(chr);
2068         error_setg(errp, "cannot create text console");
2069         return NULL;
2070     }
2071 
2072     s->chr = chr;
2073     chr->opaque = s;
2074     chr->chr_set_echo = text_console_set_echo;
2075     /* console/chardev init sometimes completes elsewhere in a 2nd
2076      * stage, so defer OPENED events until they are fully initialized
2077      */
2078     chr->explicit_be_open = true;
2079 
2080     if (display_state) {
2081         text_console_do_init(chr, display_state);
2082     }
2083     return chr;
2084 }
2085 
2086 static VcHandler *vc_handler = text_console_init;
2087 
2088 static CharDriverState *vc_init(const char *id, ChardevBackend *backend,
2089                                 ChardevReturn *ret, Error **errp)
2090 {
2091     return vc_handler(backend->u.vc.data, errp);
2092 }
2093 
2094 void register_vc_handler(VcHandler *handler)
2095 {
2096     vc_handler = handler;
2097 }
2098 
2099 void qemu_console_resize(QemuConsole *s, int width, int height)
2100 {
2101     DisplaySurface *surface;
2102 
2103     assert(s->console_type == GRAPHIC_CONSOLE);
2104     surface = qemu_create_displaysurface(width, height);
2105     dpy_gfx_replace_surface(s, surface);
2106 }
2107 
2108 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
2109                        int dst_x, int dst_y, int w, int h)
2110 {
2111     assert(con->console_type == GRAPHIC_CONSOLE);
2112     dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
2113 }
2114 
2115 DisplaySurface *qemu_console_surface(QemuConsole *console)
2116 {
2117     return console->surface;
2118 }
2119 
2120 PixelFormat qemu_default_pixelformat(int bpp)
2121 {
2122     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
2123     PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
2124     return pf;
2125 }
2126 
2127 static void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend,
2128                               Error **errp)
2129 {
2130     int val;
2131     ChardevVC *vc;
2132 
2133     vc = backend->u.vc.data = g_new0(ChardevVC, 1);
2134     qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
2135 
2136     val = qemu_opt_get_number(opts, "width", 0);
2137     if (val != 0) {
2138         vc->has_width = true;
2139         vc->width = val;
2140     }
2141 
2142     val = qemu_opt_get_number(opts, "height", 0);
2143     if (val != 0) {
2144         vc->has_height = true;
2145         vc->height = val;
2146     }
2147 
2148     val = qemu_opt_get_number(opts, "cols", 0);
2149     if (val != 0) {
2150         vc->has_cols = true;
2151         vc->cols = val;
2152     }
2153 
2154     val = qemu_opt_get_number(opts, "rows", 0);
2155     if (val != 0) {
2156         vc->has_rows = true;
2157         vc->rows = val;
2158     }
2159 }
2160 
2161 static const TypeInfo qemu_console_info = {
2162     .name = TYPE_QEMU_CONSOLE,
2163     .parent = TYPE_OBJECT,
2164     .instance_size = sizeof(QemuConsole),
2165     .class_size = sizeof(QemuConsoleClass),
2166 };
2167 
2168 
2169 static void register_types(void)
2170 {
2171     type_register_static(&qemu_console_info);
2172     register_char_driver("vc", CHARDEV_BACKEND_KIND_VC, qemu_chr_parse_vc,
2173                          vc_init);
2174 }
2175 
2176 type_init(register_types);
2177