source: mainline/uspace/srv/console/console.c@ e3fa92aa

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since e3fa92aa was 953769f, checked in by Jakub Jermar <jakub@…>, 16 years ago

Handle pending input using only one fibril.
Relax serialization in console, keep your fingers crossed.
Do not create a new "pending" fibril after each received call.
  • Property mode set to 100644
File size: 20.2 KB
Line 
1/*
2 * Copyright (c) 2006 Josef Cejka
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup console
30 * @{
31 */
32/** @file
33 */
34
35#include <libc.h>
36#include <fb.h>
37#include <ipc/ipc.h>
38#include <kbd.h>
39#include <io/keycode.h>
40#include <ipc/fb.h>
41#include <ipc/services.h>
42#include <errno.h>
43#include <keybuffer.h>
44#include <ipc/console.h>
45#include <unistd.h>
46#include <async.h>
47#include <adt/fifo.h>
48#include <sys/mman.h>
49#include <stdio.h>
50#include <string.h>
51#include <sysinfo.h>
52#include <event.h>
53#include <devmap.h>
54#include <assert.h>
55#include <fibril_sync.h>
56
57#include "console.h"
58#include "gcons.h"
59#include "screenbuffer.h"
60
61#define NAME "console"
62
63#define MAX_DEVICE_NAME 32
64
65/** Phone to the keyboard driver. */
66static int kbd_phone;
67
68/** Information about framebuffer */
69struct {
70 int phone; /**< Framebuffer phone */
71 ipcarg_t cols; /**< Framebuffer columns */
72 ipcarg_t rows; /**< Framebuffer rows */
73} fb_info;
74
75typedef struct {
76 size_t index; /**< Console index */
77 size_t refcount; /**< Connection reference count */
78 dev_handle_t dev_handle; /**< Device handle */
79 keybuffer_t keybuffer; /**< Buffer for incoming keys. */
80 screenbuffer_t scr; /**< Screenbuffer for saving screen
81 contents and related settings. */
82} console_t;
83
84/** Array of data for virtual consoles */
85static console_t consoles[CONSOLE_COUNT];
86
87static console_t *active_console = &consoles[0];
88static console_t *prev_console = &consoles[0];
89static console_t *kernel_console = &consoles[KERNEL_CONSOLE];
90
91/** Pointer to memory shared with framebufer used for
92 faster virtual console switching */
93static keyfield_t *interbuffer = NULL;
94
95/** Information on row-span yet unsent to FB driver. */
96struct {
97 size_t col; /**< Leftmost column of the span. */
98 size_t row; /**< Row where the span lies. */
99 size_t cnt; /**< Width of the span. */
100} fb_pending;
101
102/** Pending input structure. */
103typedef struct {
104 link_t link;
105 console_t *cons; /**< Console waiting for input */
106 ipc_callid_t rid; /**< Call ID waiting for input */
107 ipc_callid_t callid; /**< Call ID waiting for IPC_DATA_READ */
108
109 size_t pos; /**< Position of the last stored data */
110 size_t size; /**< Size of ther buffer */
111 char *data; /**< Already stored data */
112} pending_input_t;
113
114LIST_INITIALIZE(pending_input);
115
116static FIBRIL_MUTEX_INITIALIZE(input_mutex);
117static FIBRIL_CONDVAR_INITIALIZE(input_cv);
118static input_flag = false;
119
120/** Process pending input requests */
121static void process_pending_input(void)
122{
123 link_t *cur;
124
125loop:
126 fibril_mutex_lock(&input_mutex);
127 while (!input_flag)
128 fibril_condvar_wait(&input_cv, &input_mutex);
129rescan:
130 for (cur = pending_input.next; cur != &pending_input; cur = cur->next) {
131 pending_input_t *pr = list_get_instance(cur, pending_input_t, link);
132
133 console_event_t ev;
134 if (keybuffer_pop(&pr->cons->keybuffer, &ev)) {
135
136 if (pr->data != NULL) {
137 if (ev.type == KEY_PRESS) {
138 pr->data[pr->pos] = ev.c;
139 pr->pos++;
140 }
141 } else {
142 ipc_answer_4(pr->rid, EOK, ev.type, ev.key, ev.mods, ev.c);
143 list_remove(cur);
144 free(pr);
145 goto rescan;
146 }
147 }
148
149 if ((pr->data != NULL) && (pr->pos == pr->size)) {
150 (void) ipc_data_read_finalize(pr->callid, pr->data, pr->size);
151 ipc_answer_1(pr->rid, EOK, pr->size);
152
153 free(pr->data);
154 list_remove(cur);
155 free(pr);
156 goto rescan;
157 }
158 }
159 input_flag = false;
160 fibril_mutex_unlock(&input_mutex);
161 goto loop;
162}
163
164static void curs_visibility(bool visible)
165{
166 async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
167}
168
169static void curs_hide_sync(void)
170{
171 ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
172}
173
174static void curs_goto(size_t x, size_t y)
175{
176 async_msg_2(fb_info.phone, FB_CURSOR_GOTO, x, y);
177}
178
179static void screen_clear(void)
180{
181 async_msg_0(fb_info.phone, FB_CLEAR);
182}
183
184static void screen_yield(void)
185{
186 ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_YIELD);
187}
188
189static void screen_reclaim(void)
190{
191 ipc_call_sync_0_0(fb_info.phone, FB_SCREEN_RECLAIM);
192}
193
194static void kbd_yield(void)
195{
196 ipc_call_sync_0_0(kbd_phone, KBD_YIELD);
197}
198
199static void kbd_reclaim(void)
200{
201 ipc_call_sync_0_0(kbd_phone, KBD_RECLAIM);
202}
203
204static void set_style(int style)
205{
206 async_msg_1(fb_info.phone, FB_SET_STYLE, style);
207}
208
209static void set_color(int fgcolor, int bgcolor, int flags)
210{
211 async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
212}
213
214static void set_rgb_color(int fgcolor, int bgcolor)
215{
216 async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
217}
218
219static void set_attrs(attrs_t *attrs)
220{
221 switch (attrs->t) {
222 case at_style:
223 set_style(attrs->a.s.style);
224 break;
225 case at_idx:
226 set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
227 attrs->a.i.flags);
228 break;
229 case at_rgb:
230 set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
231 break;
232 }
233}
234
235/** Send an area of screenbuffer to the FB driver. */
236static void fb_update_area(console_t *cons, ipcarg_t x0, ipcarg_t y0, ipcarg_t width, ipcarg_t height)
237{
238 if (interbuffer) {
239 ipcarg_t x;
240 ipcarg_t y;
241
242 for (y = 0; y < height; y++) {
243 for (x = 0; x < width; x++) {
244 interbuffer[y * width + x] =
245 *get_field_at(&cons->scr, x0 + x, y0 + y);
246 }
247 }
248
249 async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
250 x0, y0, width, height);
251 }
252}
253
254/** Flush pending cells to FB. */
255static void fb_pending_flush(void)
256{
257 if (fb_pending.cnt > 0) {
258 fb_update_area(active_console, fb_pending.col,
259 fb_pending.row, fb_pending.cnt, 1);
260 fb_pending.cnt = 0;
261 }
262}
263
264/** Mark a character cell as changed.
265 *
266 * This adds the cell to the pending rowspan if possible. Otherwise
267 * the old span is flushed first.
268 *
269 */
270static void cell_mark_changed(size_t col, size_t row)
271{
272 if (fb_pending.cnt != 0) {
273 if ((col != fb_pending.col + fb_pending.cnt)
274 || (row != fb_pending.row)) {
275 fb_pending_flush();
276 }
277 }
278
279 if (fb_pending.cnt == 0) {
280 fb_pending.col = col;
281 fb_pending.row = row;
282 }
283
284 fb_pending.cnt++;
285}
286
287/** Print a character to the active VC with buffering. */
288static void fb_putchar(wchar_t c, ipcarg_t col, ipcarg_t row)
289{
290 async_msg_3(fb_info.phone, FB_PUTCHAR, c, col, row);
291}
292
293/** Process a character from the client (TTY emulation). */
294static void write_char(console_t *cons, wchar_t ch)
295{
296 bool flush_cursor = false;
297
298 switch (ch) {
299 case '\n':
300 fb_pending_flush();
301 flush_cursor = true;
302 cons->scr.position_y++;
303 cons->scr.position_x = 0;
304 break;
305 case '\r':
306 break;
307 case '\t':
308 cons->scr.position_x += 8;
309 cons->scr.position_x -= cons->scr.position_x % 8;
310 break;
311 case '\b':
312 if (cons->scr.position_x == 0)
313 break;
314 cons->scr.position_x--;
315 if (cons == active_console)
316 cell_mark_changed(cons->scr.position_x, cons->scr.position_y);
317 screenbuffer_putchar(&cons->scr, ' ');
318 break;
319 default:
320 if (cons == active_console)
321 cell_mark_changed(cons->scr.position_x, cons->scr.position_y);
322
323 screenbuffer_putchar(&cons->scr, ch);
324 cons->scr.position_x++;
325 }
326
327 if (cons->scr.position_x >= cons->scr.size_x) {
328 flush_cursor = true;
329 cons->scr.position_y++;
330 }
331
332 if (cons->scr.position_y >= cons->scr.size_y) {
333 fb_pending_flush();
334 cons->scr.position_y = cons->scr.size_y - 1;
335 screenbuffer_clear_line(&cons->scr, cons->scr.top_line);
336 cons->scr.top_line = (cons->scr.top_line + 1) % cons->scr.size_y;
337
338 if (cons == active_console)
339 async_msg_1(fb_info.phone, FB_SCROLL, 1);
340 }
341
342 if (cons == active_console && flush_cursor)
343 curs_goto(cons->scr.position_x, cons->scr.position_y);
344 cons->scr.position_x = cons->scr.position_x % cons->scr.size_x;
345}
346
347/** Switch to new console */
348static void change_console(console_t *cons)
349{
350 if (cons == active_console)
351 return;
352
353 fb_pending_flush();
354
355 if (cons == kernel_console) {
356 async_serialize_start();
357 curs_hide_sync();
358 gcons_in_kernel();
359 screen_yield();
360 kbd_yield();
361 async_serialize_end();
362
363 if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
364 prev_console = active_console;
365 active_console = kernel_console;
366 } else
367 cons = active_console;
368 }
369
370 if (cons != kernel_console) {
371 size_t x;
372 size_t y;
373 int rc = 0;
374
375 async_serialize_start();
376
377 if (active_console == kernel_console) {
378 screen_reclaim();
379 kbd_reclaim();
380 gcons_redraw_console();
381 }
382
383 active_console = cons;
384 gcons_change_console(cons->index);
385
386 set_attrs(&cons->scr.attrs);
387 curs_visibility(false);
388 if (interbuffer) {
389 for (y = 0; y < cons->scr.size_y; y++) {
390 for (x = 0; x < cons->scr.size_x; x++) {
391 interbuffer[y * cons->scr.size_x + x] =
392 *get_field_at(&cons->scr, x, y);
393 }
394 }
395
396 /* This call can preempt, but we are already at the end */
397 rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
398 0, 0, cons->scr.size_x,
399 cons->scr.size_y);
400 }
401
402 if ((!interbuffer) || (rc != 0)) {
403 set_attrs(&cons->scr.attrs);
404 screen_clear();
405
406 for (y = 0; y < cons->scr.size_y; y++)
407 for (x = 0; x < cons->scr.size_x; x++) {
408 keyfield_t *field = get_field_at(&cons->scr, x, y);
409
410 if (!attrs_same(cons->scr.attrs, field->attrs))
411 set_attrs(&field->attrs);
412
413 cons->scr.attrs = field->attrs;
414 if ((field->character == ' ') &&
415 (attrs_same(field->attrs, cons->scr.attrs)))
416 continue;
417
418 fb_putchar(field->character, x, y);
419 }
420 }
421
422 curs_goto(cons->scr.position_x, cons->scr.position_y);
423 curs_visibility(cons->scr.is_cursor_visible);
424
425 async_serialize_end();
426 }
427}
428
429/** Handler for keyboard */
430static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
431{
432 /* Ignore parameters, the connection is already opened */
433 while (true) {
434
435 ipc_call_t call;
436 ipc_callid_t callid = async_get_call(&call);
437
438 int retval;
439 console_event_t ev;
440
441 switch (IPC_GET_METHOD(call)) {
442 case IPC_M_PHONE_HUNGUP:
443 /* TODO: Handle hangup */
444 return;
445 case KBD_EVENT:
446 /* Got event from keyboard driver. */
447 retval = 0;
448 ev.type = IPC_GET_ARG1(call);
449 ev.key = IPC_GET_ARG2(call);
450 ev.mods = IPC_GET_ARG3(call);
451 ev.c = IPC_GET_ARG4(call);
452
453 if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
454 CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
455 if (ev.key == KC_F1 + KERNEL_CONSOLE)
456 change_console(kernel_console);
457 else
458 change_console(&consoles[ev.key - KC_F1]);
459 break;
460 }
461
462 fibril_mutex_lock(&input_mutex);
463 keybuffer_push(&active_console->keybuffer, &ev);
464 input_flag = true;
465 fibril_condvar_signal(&input_cv);
466 fibril_mutex_unlock(&input_mutex);
467 break;
468 default:
469 retval = ENOENT;
470 }
471 ipc_answer_0(callid, retval);
472 }
473}
474
475static void cons_write(console_t *cons, ipc_callid_t rid, ipc_call_t *request)
476{
477 ipc_callid_t callid;
478 size_t size;
479 if (!ipc_data_write_receive(&callid, &size)) {
480 ipc_answer_0(callid, EINVAL);
481 ipc_answer_0(rid, EINVAL);
482 return;
483 }
484
485 char *buf = (char *) malloc(size);
486 if (buf == NULL) {
487 ipc_answer_0(callid, ENOMEM);
488 ipc_answer_0(rid, ENOMEM);
489 return;
490 }
491
492 (void) ipc_data_write_finalize(callid, buf, size);
493
494 async_serialize_start();
495
496 size_t off = 0;
497 while (off < size) {
498 wchar_t ch = str_decode(buf, &off, size);
499 write_char(cons, ch);
500 }
501
502 async_serialize_end();
503
504 gcons_notify_char(cons->index);
505 ipc_answer_1(rid, EOK, size);
506
507 free(buf);
508}
509
510static void cons_read(console_t *cons, ipc_callid_t rid, ipc_call_t *request)
511{
512 ipc_callid_t callid;
513 size_t size;
514 if (!ipc_data_read_receive(&callid, &size)) {
515 ipc_answer_0(callid, EINVAL);
516 ipc_answer_0(rid, EINVAL);
517 return;
518 }
519
520 char *buf = (char *) malloc(size);
521 if (buf == NULL) {
522 ipc_answer_0(callid, ENOMEM);
523 ipc_answer_0(rid, ENOMEM);
524 return;
525 }
526
527 size_t pos = 0;
528 console_event_t ev;
529 fibril_mutex_lock(&input_mutex);
530 while ((keybuffer_pop(&cons->keybuffer, &ev)) && (pos < size)) {
531 if (ev.type == KEY_PRESS) {
532 buf[pos] = ev.c;
533 pos++;
534 }
535 }
536
537 if (pos == size) {
538 (void) ipc_data_read_finalize(callid, buf, size);
539 ipc_answer_1(rid, EOK, size);
540 free(buf);
541 } else {
542 pending_input_t *pr = (pending_input_t *) malloc(sizeof(pending_input_t));
543 if (!pr) {
544 fibril_mutex_unlock(&input_mutex);
545 ipc_answer_0(callid, ENOMEM);
546 ipc_answer_0(rid, ENOMEM);
547 free(buf);
548 return;
549 }
550
551 pr->cons = cons;
552 pr->rid = rid;
553 pr->callid = callid;
554 pr->pos = pos;
555 pr->size = size;
556 pr->data = buf;
557 list_append(&pr->link, &pending_input);
558 }
559 fibril_mutex_unlock(&input_mutex);
560}
561
562static void cons_get_event(console_t *cons, ipc_callid_t rid, ipc_call_t *request)
563{
564 console_event_t ev;
565
566 fibril_mutex_lock(&input_mutex);
567 if (keybuffer_pop(&cons->keybuffer, &ev)) {
568 ipc_answer_4(rid, EOK, ev.type, ev.key, ev.mods, ev.c);
569 } else {
570 pending_input_t *pr = (pending_input_t *) malloc(sizeof(pending_input_t));
571 if (!pr) {
572 fibril_mutex_unlock(&input_mutex);
573 ipc_answer_0(rid, ENOMEM);
574 return;
575 }
576
577 pr->cons = cons;
578 pr->rid = rid;
579 pr->callid = 0;
580 pr->data = NULL;
581 list_append(&pr->link, &pending_input);
582 }
583 fibril_mutex_unlock(&input_mutex);
584}
585
586/** Default thread for new connections */
587static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
588{
589 console_t *cons = NULL;
590
591 size_t i;
592 for (i = 0; i < CONSOLE_COUNT; i++) {
593 if (i == KERNEL_CONSOLE)
594 continue;
595
596 if (consoles[i].dev_handle == (dev_handle_t) IPC_GET_ARG1(*icall)) {
597 cons = &consoles[i];
598 break;
599 }
600 }
601
602 if (cons == NULL) {
603 ipc_answer_0(iid, ENOENT);
604 return;
605 }
606
607 ipc_callid_t callid;
608 ipc_call_t call;
609 ipcarg_t arg1;
610 ipcarg_t arg2;
611 ipcarg_t arg3;
612
613 async_serialize_start();
614 if (cons->refcount == 0)
615 gcons_notify_connect(cons->index);
616
617 cons->refcount++;
618
619 /* Accept the connection */
620 ipc_answer_0(iid, EOK);
621
622 while (true) {
623 async_serialize_end();
624 callid = async_get_call(&call);
625 async_serialize_start();
626
627 arg1 = 0;
628 arg2 = 0;
629 arg3 = 0;
630
631 switch (IPC_GET_METHOD(call)) {
632 case IPC_M_PHONE_HUNGUP:
633 cons->refcount--;
634 if (cons->refcount == 0)
635 gcons_notify_disconnect(cons->index);
636 return;
637 case VFS_READ:
638 async_serialize_end();
639 cons_read(cons, callid, &call);
640 async_serialize_start();
641 continue;
642 case VFS_WRITE:
643 async_serialize_end();
644 cons_write(cons, callid, &call);
645 async_serialize_start();
646 continue;
647 case VFS_SYNC:
648 fb_pending_flush();
649 if (cons == active_console) {
650 async_req_0_0(fb_info.phone, FB_FLUSH);
651
652 curs_goto(cons->scr.position_x, cons->scr.position_y);
653 }
654 break;
655 case CONSOLE_CLEAR:
656 /* Send message to fb */
657 if (cons == active_console)
658 async_msg_0(fb_info.phone, FB_CLEAR);
659
660 screenbuffer_clear(&cons->scr);
661
662 break;
663 case CONSOLE_GOTO:
664 screenbuffer_goto(&cons->scr,
665 IPC_GET_ARG1(call), IPC_GET_ARG2(call));
666 if (cons == active_console)
667 curs_goto(IPC_GET_ARG1(call),
668 IPC_GET_ARG2(call));
669 break;
670 case CONSOLE_GET_SIZE:
671 arg1 = fb_info.cols;
672 arg2 = fb_info.rows;
673 break;
674 case CONSOLE_SET_STYLE:
675 fb_pending_flush();
676 arg1 = IPC_GET_ARG1(call);
677 screenbuffer_set_style(&cons->scr, arg1);
678 if (cons == active_console)
679 set_style(arg1);
680 break;
681 case CONSOLE_SET_COLOR:
682 fb_pending_flush();
683 arg1 = IPC_GET_ARG1(call);
684 arg2 = IPC_GET_ARG2(call);
685 arg3 = IPC_GET_ARG3(call);
686 screenbuffer_set_color(&cons->scr, arg1, arg2, arg3);
687 if (cons == active_console)
688 set_color(arg1, arg2, arg3);
689 break;
690 case CONSOLE_SET_RGB_COLOR:
691 fb_pending_flush();
692 arg1 = IPC_GET_ARG1(call);
693 arg2 = IPC_GET_ARG2(call);
694 screenbuffer_set_rgb_color(&cons->scr, arg1, arg2);
695 if (cons == active_console)
696 set_rgb_color(arg1, arg2);
697 break;
698 case CONSOLE_CURSOR_VISIBILITY:
699 fb_pending_flush();
700 arg1 = IPC_GET_ARG1(call);
701 cons->scr.is_cursor_visible = arg1;
702 if (cons == active_console)
703 curs_visibility(arg1);
704 break;
705 case CONSOLE_GET_EVENT:
706 async_serialize_end();
707 cons_get_event(cons, callid, &call);
708 async_serialize_start();
709 continue;
710 case CONSOLE_KCON_ENABLE:
711 change_console(kernel_console);
712 break;
713 }
714 ipc_answer_3(callid, EOK, arg1, arg2, arg3);
715 }
716}
717
718static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
719{
720 change_console(prev_console);
721}
722
723static bool console_init(void)
724{
725 /* Connect to keyboard driver */
726 kbd_phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
727 if (kbd_phone < 0) {
728 printf(NAME ": Failed to connect to keyboard service\n");
729 return false;
730 }
731
732 ipcarg_t phonehash;
733 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0) {
734 printf(NAME ": Failed to create callback from keyboard service\n");
735 return false;
736 }
737
738 async_new_connection(phonehash, 0, NULL, keyboard_events);
739
740 fid_t fid = fibril_create(process_pending_input, NULL);
741 if (!fid) {
742 printf(NAME ": Failed to create fibril for handling pending "
743 "input\n");
744 return -1;
745 }
746 fibril_add_ready(fid);
747
748 /* Connect to framebuffer driver */
749 fb_info.phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_VIDEO, 0, 0);
750 if (fb_info.phone < 0) {
751 printf(NAME ": Failed to connect to video service\n");
752 return -1;
753 }
754
755 /* Register driver */
756 int rc = devmap_driver_register(NAME, client_connection);
757 if (rc < 0) {
758 printf(NAME ": Unable to register driver (%d)\n", rc);
759 return false;
760 }
761
762 /* Initialize gcons */
763 gcons_init(fb_info.phone);
764
765 /* Synchronize, the gcons could put something in queue */
766 async_req_0_0(fb_info.phone, FB_FLUSH);
767 async_req_0_2(fb_info.phone, FB_GET_CSIZE, &fb_info.cols, &fb_info.rows);
768
769 /* Set up shared memory buffer. */
770 size_t ib_size = sizeof(keyfield_t) * fb_info.cols * fb_info.rows;
771 interbuffer = as_get_mappable_page(ib_size);
772
773 if (as_area_create(interbuffer, ib_size, AS_AREA_READ |
774 AS_AREA_WRITE | AS_AREA_CACHEABLE) != interbuffer)
775 interbuffer = NULL;
776
777 if (interbuffer) {
778 if (ipc_share_out_start(fb_info.phone, interbuffer,
779 AS_AREA_READ) != EOK) {
780 as_area_destroy(interbuffer);
781 interbuffer = NULL;
782 }
783 }
784
785 fb_pending.cnt = 0;
786
787 /* Inititalize consoles */
788 size_t i;
789 for (i = 0; i < CONSOLE_COUNT; i++) {
790 if (i != KERNEL_CONSOLE) {
791 if (screenbuffer_init(&consoles[i].scr,
792 fb_info.cols, fb_info.rows) == NULL) {
793 printf(NAME ": Unable to allocate screen buffer %u\n", i);
794 return false;
795 }
796 screenbuffer_clear(&consoles[i].scr);
797 keybuffer_init(&consoles[i].keybuffer);
798 consoles[i].index = i;
799 consoles[i].refcount = 0;
800
801 char vc[MAX_DEVICE_NAME];
802 snprintf(vc, MAX_DEVICE_NAME, "vc%u", i);
803
804 if (devmap_device_register(vc, &consoles[i].dev_handle) != EOK) {
805 devmap_hangup_phone(DEVMAP_DRIVER);
806 printf(NAME ": Unable to register device %s\n", vc);
807 return false;
808 }
809 }
810 }
811
812 /* Disable kernel output to the console */
813 __SYSCALL0(SYS_DEBUG_DISABLE_CONSOLE);
814
815 /* Initialize the screen */
816 async_serialize_start();
817 gcons_redraw_console();
818 set_rgb_color(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
819 screen_clear();
820 curs_goto(0, 0);
821 curs_visibility(active_console->scr.is_cursor_visible);
822 async_serialize_end();
823
824 /* Receive kernel notifications */
825 if (event_subscribe(EVENT_KCONSOLE, 0) != EOK)
826 printf(NAME ": Error registering kconsole notifications\n");
827
828 async_set_interrupt_received(interrupt_received);
829
830 return true;
831}
832
833int main(int argc, char *argv[])
834{
835 printf(NAME ": HelenOS Console service\n");
836
837 if (!console_init())
838 return -1;
839
840 printf(NAME ": Accepting connections\n");
841 async_manager();
842
843 return 0;
844}
845
846/** @}
847 */
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