source: mainline/uspace/srv/console/console.c@ 1378b2b

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1378b2b was 18c485a, checked in by Jakub Jermar <jakub@…>, 17 years ago

Do not typecast (sysarg_t *) to (int *). Especially on big endian 64-bit
machines, this does not have the intended effect.
  • Property mode set to 100644
File size: 13.9 KB
RevLine 
[51c1b003]1/*
[df4ed85]2 * Copyright (c) 2006 Josef Cejka
[51c1b003]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 */
[ce5bcb4]28
[231a60a]29/** @addtogroup console
[ce5bcb4]30 * @{
31 */
32/** @file
33 */
34
[3209923]35#include <libc.h>
[79460ae]36#include <fb.h>
[51c1b003]37#include <ipc/ipc.h>
[15039b67]38#include <keys.h>
[79460ae]39#include <ipc/fb.h>
[51c1b003]40#include <ipc/services.h>
41#include <errno.h>
[79460ae]42#include <key_buffer.h>
43#include <console.h>
[eaf34f7]44#include <unistd.h>
45#include <async.h>
[cf28036c]46#include <libadt/fifo.h>
[3993b3d]47#include <screenbuffer.h>
[2def788]48#include <sys/mman.h>
[271b540]49#include <stdio.h>
[79460ae]50
[e1c4849]51#include "gcons.h"
52
[cf28036c]53#define MAX_KEYREQUESTS_BUFFERED 32
[51c1b003]54
[271b540]55#define NAME "console"
[51c1b003]56
[e87e18f]57/** Index of currently used virtual console.
58 */
[390a678]59int active_console = 0;
[eaf34f7]60
[e87e18f]61/** Information about framebuffer
62 */
[3993b3d]63struct {
64 int phone; /**< Framebuffer phone */
[bb51e9a8]65 ipcarg_t rows; /**< Framebuffer rows */
66 ipcarg_t cols; /**< Framebuffer columns */
[3993b3d]67} fb_info;
68
[79460ae]69typedef struct {
[e87e18f]70 keybuffer_t keybuffer; /**< Buffer for incoming keys. */
[00bb6965]71 /** Buffer for unsatisfied request for keys. */
72 FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
73 MAX_KEYREQUESTS_BUFFERED);
[e87e18f]74 int keyrequest_counter; /**< Number of requests in buffer. */
75 int client_phone; /**< Phone to connected client. */
[00bb6965]76 int used; /**< 1 if this virtual console is
77 * connected to some client.*/
78 screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen
79 * contents and related settings. */
[79460ae]80} connection_t;
81
[00bb6965]82static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
83 * consoles */
84static keyfield_t *interbuffer = NULL; /**< Pointer to memory shared
85 * with framebufer used for
86 * faster virtual console
[c738d65]87 * switching */
[429acb9]88
[00bb6965]89static int kernel_pixmap = -1; /**< Number of fb pixmap, where kernel
90 * console is stored */
[bb51e9a8]91
92
[e87e18f]93/** Find unused virtual console.
94 *
95 */
[d32af35]96static int find_free_connection(void)
[79460ae]97{
[c738d65]98 int i;
[79460ae]99
[c738d65]100 for (i = 0; i < CONSOLE_COUNT; i++) {
[d32af35]101 if (!connections[i].used)
[79460ae]102 return i;
103 }
[d32af35]104 return -1;
[79460ae]105}
106
[429acb9]107static void clrscr(void)
108{
[0cc4313]109 async_msg_0(fb_info.phone, FB_CLEAR);
[429acb9]110}
111
112static void curs_visibility(int v)
113{
[0cc4313]114 async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, v);
[429acb9]115}
116
117static void curs_goto(int row, int col)
118{
[085bd54]119 async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
[429acb9]120}
121
122static void set_style(style_t *style)
123{
[00bb6965]124 async_msg_2(fb_info.phone, FB_SET_STYLE, style->fg_color,
[01f5e17]125 style->bg_color);
[429acb9]126}
127
128static void set_style_col(int fgcolor, int bgcolor)
129{
[085bd54]130 async_msg_2(fb_info.phone, FB_SET_STYLE, fgcolor, bgcolor);
[429acb9]131}
132
133static void prtchr(char c, int row, int col)
134{
[085bd54]135 async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
[429acb9]136}
137
[10569b1]138/** Check key and process special keys.
139 *
[96858e8]140 *
141 */
[10569b1]142static void write_char(int console, char key)
143{
144 screenbuffer_t *scr = &(connections[console].screenbuffer);
145
146 switch (key) {
[00bb6965]147 case '\n':
[c738d65]148 scr->position_y++;
149 scr->position_x = 0;
[00bb6965]150 break;
151 case '\r':
152 break;
153 case '\t':
154 scr->position_x += 8;
155 scr->position_x -= scr->position_x % 8;
156 break;
157 case '\b':
158 if (scr->position_x == 0)
[10569b1]159 break;
[00bb6965]160 scr->position_x--;
161 if (console == active_console)
162 prtchr(' ', scr->position_y, scr->position_x);
163 screenbuffer_putchar(scr, ' ');
164 break;
165 default:
166 if (console == active_console)
167 prtchr(key, scr->position_y, scr->position_x);
[10569b1]168
[00bb6965]169 screenbuffer_putchar(scr, key);
170 scr->position_x++;
[10569b1]171 }
172
173 scr->position_y += (scr->position_x >= scr->size_x);
174
175 if (scr->position_y >= scr->size_y) {
176 scr->position_y = scr->size_y - 1;
[c891ed39]177 screenbuffer_clear_line(scr, scr->top_line);
[c738d65]178 scr->top_line = (scr->top_line + 1) % scr->size_y;
[b1f51f0]179 if (console == active_console)
[0cc4313]180 async_msg_1(fb_info.phone, FB_SCROLL, 1);
[10569b1]181 }
182
183 scr->position_x = scr->position_x % scr->size_x;
[bd929cfb]184
[429acb9]185 if (console == active_console)
186 curs_goto(scr->position_y, scr->position_x);
[10569b1]187
188}
189
[429acb9]190/** Save current screen to pixmap, draw old pixmap
191 *
192 * @param oldpixmap Old pixmap
193 * @return ID of pixmap of current screen
194 */
195static int switch_screens(int oldpixmap)
196{
197 int newpmap;
198
199 /* Save screen */
[0cc4313]200 newpmap = async_req_0_0(fb_info.phone, FB_VP2PIXMAP);
[429acb9]201 if (newpmap < 0)
202 return -1;
203
204 if (oldpixmap != -1) {
205 /* Show old screen */
[085bd54]206 async_msg_2(fb_info.phone, FB_VP_DRAW_PIXMAP, 0, oldpixmap);
[429acb9]207 /* Drop old pixmap */
[0cc4313]208 async_msg_1(fb_info.phone, FB_DROP_PIXMAP, oldpixmap);
[429acb9]209 }
210
211 return newpmap;
212}
213
214/** Switch to new console */
215static void change_console(int newcons)
216{
217 connection_t *conn;
218 static int console_pixmap = -1;
[bd02038]219 int i, j, rc;
[6d5005c]220 keyfield_t *field;
221 style_t *style;
[429acb9]222
223 if (newcons == active_console)
224 return;
225
[a7d2d78]226 if (newcons == KERNEL_CONSOLE) {
227 if (active_console == KERNEL_CONSOLE)
[429acb9]228 return;
[a7d2d78]229 active_console = KERNEL_CONSOLE;
[429acb9]230 curs_visibility(0);
231
[1f83244]232 async_serialize_start();
[429acb9]233 if (kernel_pixmap == -1) {
234 /* store/restore unsupported */
235 set_style_col(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
236 clrscr();
237 } else {
238 gcons_in_kernel();
239 console_pixmap = switch_screens(kernel_pixmap);
240 kernel_pixmap = -1;
241 }
[1f83244]242 async_serialize_end();
[429acb9]243
244 __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE);
245 return;
246 }
247
[1f83244]248 async_serialize_start();
249
[429acb9]250 if (console_pixmap != -1) {
251 kernel_pixmap = switch_screens(console_pixmap);
252 console_pixmap = -1;
253 }
254 active_console = newcons;
255 gcons_change_console(newcons);
256 conn = &connections[active_console];
257
[7bc1e74]258 set_style(&conn->screenbuffer.style);
[6d5005c]259 curs_visibility(0);
[429acb9]260 if (interbuffer) {
261 for (i = 0; i < conn->screenbuffer.size_x; i++)
[01f5e17]262 for (j = 0; j < conn->screenbuffer.size_y; j++) {
263 unsigned int size_x;
264
265 size_x = conn->screenbuffer.size_x;
266 interbuffer[i + j * size_x] =
267 *get_field_at(&conn->screenbuffer, i, j);
268 }
[7bc1e74]269 /* This call can preempt, but we are already at the end */
[0cc4313]270 rc = async_req_0_0(fb_info.phone, FB_DRAW_TEXT_DATA);
[01f5e17]271 }
[6d5005c]272
[c891ed39]273 if ((!interbuffer) || (rc != 0)) {
[6d5005c]274 set_style(&conn->screenbuffer.style);
[429acb9]275 clrscr();
[6d5005c]276 style = &conn->screenbuffer.style;
277
278 for (j = 0; j < conn->screenbuffer.size_y; j++)
279 for (i = 0; i < conn->screenbuffer.size_x; i++) {
[b74959bd]280 field = get_field_at(&conn->screenbuffer, i, j);
[6d5005c]281 if (!style_same(*style, field->style))
282 set_style(&field->style);
283 style = &field->style;
[00bb6965]284 if ((field->character == ' ') &&
[01f5e17]285 (style_same(field->style,
286 conn->screenbuffer.style)))
[6d5005c]287 continue;
288
289 prtchr(field->character, j, i);
[429acb9]290 }
291 }
[6d5005c]292
[00bb6965]293 curs_goto(conn->screenbuffer.position_y,
[01f5e17]294 conn->screenbuffer.position_x);
[6d5005c]295 curs_visibility(conn->screenbuffer.is_cursor_visible);
[1f83244]296
297 async_serialize_end();
[429acb9]298}
[10569b1]299
[e87e18f]300/** Handler for keyboard */
[eaf34f7]301static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
[51c1b003]302{
[eaf34f7]303 ipc_callid_t callid;
[51c1b003]304 ipc_call_t call;
[eaf34f7]305 int retval;
[dd641e3]306 int c;
[c1d2c9d]307 connection_t *conn;
[1f83244]308 int newcon;
[bb51e9a8]309
[eaf34f7]310 /* Ignore parameters, the connection is alread opened */
311 while (1) {
312 callid = async_get_call(&call);
313 switch (IPC_GET_METHOD(call)) {
314 case IPC_M_PHONE_HUNGUP:
315 /* TODO: Handle hangup */
316 return;
[1f83244]317 case KBD_MS_LEFT:
318 newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
319 if (newcon != -1)
320 change_console(newcon);
[501a8ba]321 retval = 0;
[1f83244]322 break;
[830ac99]323 case KBD_MS_MOVE:
[00bb6965]324 gcons_mouse_move(IPC_GET_ARG1(call),
[01f5e17]325 IPC_GET_ARG2(call));
[501a8ba]326 retval = 0;
[830ac99]327 break;
[eaf34f7]328 case KBD_PUSHCHAR:
329 /* got key from keyboard driver */
[b27a97bb]330
[eaf34f7]331 retval = 0;
[a805c24]332 c = IPC_GET_ARG1(call);
[eaf34f7]333 /* switch to another virtual console */
[cf28036c]334
[c1d2c9d]335 conn = &connections[active_console];
[00bb6965]336/*
337 * if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 +
338 * CONSOLE_COUNT)) {
339 */
[dd641e3]340 if ((c >= 0x101) && (c < 0x101 + CONSOLE_COUNT)) {
341 if (c == 0x112)
[a7d2d78]342 change_console(KERNEL_CONSOLE);
[429acb9]343 else
[dd641e3]344 change_console(c - 0x101);
[eaf34f7]345 break;
346 }
[cf28036c]347
348 /* if client is awaiting key, send it */
[c1d2c9d]349 if (conn->keyrequest_counter > 0) {
350 conn->keyrequest_counter--;
[b74959bd]351 ipc_answer_1(fifo_pop(conn->keyrequests), EOK,
352 c);
[cf28036c]353 break;
354 }
355
[c1d2c9d]356 keybuffer_push(&conn->keybuffer, c);
[501a8ba]357 retval = 0;
[ad123964]358
[eaf34f7]359 break;
360 default:
[1029d3d3]361 retval = ENOENT;
[085bd54]362 }
[b74959bd]363 ipc_answer_0(callid, retval);
[eaf34f7]364 }
365}
366
367/** Default thread for new connections */
[b1f51f0]368static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
[eaf34f7]369{
[51c1b003]370 ipc_callid_t callid;
[eaf34f7]371 ipc_call_t call;
372 int consnum;
[3756912]373 ipcarg_t arg1, arg2;
[e9073f2]374 connection_t *conn;
[eaf34f7]375
[d32af35]376 if ((consnum = find_free_connection()) == -1) {
[b74959bd]377 ipc_answer_0(iid, ELIMIT);
[eaf34f7]378 return;
379 }
[e9073f2]380 conn = &connections[consnum];
[085bd54]381 conn->used = 1;
[a7d2d78]382
[085bd54]383 async_serialize_start();
[a7d2d78]384 gcons_notify_connect(consnum);
[38c706cc]385 conn->client_phone = IPC_GET_ARG5(*icall);
[e9073f2]386 screenbuffer_clear(&conn->screenbuffer);
[10569b1]387
[eaf34f7]388 /* Accept the connection */
[b74959bd]389 ipc_answer_0(iid, EOK);
[085bd54]390
[eaf34f7]391 while (1) {
[085bd54]392 async_serialize_end();
[eaf34f7]393 callid = async_get_call(&call);
[085bd54]394 async_serialize_start();
395
[96858e8]396 arg1 = 0;
397 arg2 = 0;
[eaf34f7]398 switch (IPC_GET_METHOD(call)) {
399 case IPC_M_PHONE_HUNGUP:
[e9073f2]400 gcons_notify_disconnect(consnum);
[085bd54]401
[e9073f2]402 /* Answer all pending requests */
403 while (conn->keyrequest_counter > 0) {
404 conn->keyrequest_counter--;
[b74959bd]405 ipc_answer_0(fifo_pop(conn->keyrequests),
406 ENOENT);
[e9073f2]407 break;
408 }
[0d11fc1c]409 conn->used = 0;
[eaf34f7]410 return;
411 case CONSOLE_PUTCHAR:
[10569b1]412 write_char(consnum, IPC_GET_ARG1(call));
[d6cc453]413 gcons_notify_char(consnum);
[ad123964]414 break;
415 case CONSOLE_CLEAR:
[3993b3d]416 /* Send message to fb */
417 if (consnum == active_console) {
[0cc4313]418 async_msg_0(fb_info.phone, FB_CLEAR);
[3993b3d]419 }
420
[e9073f2]421 screenbuffer_clear(&conn->screenbuffer);
[3993b3d]422
[eaf34f7]423 break;
[ad123964]424 case CONSOLE_GOTO:
[00bb6965]425 screenbuffer_goto(&conn->screenbuffer,
[01f5e17]426 IPC_GET_ARG2(call), IPC_GET_ARG1(call));
[6118e5f6]427 if (consnum == active_console)
[00bb6965]428 curs_goto(IPC_GET_ARG1(call),
[01f5e17]429 IPC_GET_ARG2(call));
[ad123964]430 break;
[3756912]431 case CONSOLE_GETSIZE:
[d6cc453]432 arg1 = fb_info.rows;
433 arg2 = fb_info.cols;
[3756912]434 break;
[0c6984e]435 case CONSOLE_FLUSH:
[a3d2939]436 if (consnum == active_console)
[0cc4313]437 async_req_0_0(fb_info.phone, FB_FLUSH);
[a9bd960c]438 break;
439 case CONSOLE_SET_STYLE:
440 arg1 = IPC_GET_ARG1(call);
441 arg2 = IPC_GET_ARG2(call);
[01f5e17]442 screenbuffer_set_style(&conn->screenbuffer, arg1,
443 arg2);
[a9bd960c]444 if (consnum == active_console)
[429acb9]445 set_style_col(arg1, arg2);
[0c6984e]446 break;
[a8b2b5b2]447 case CONSOLE_CURSOR_VISIBILITY:
448 arg1 = IPC_GET_ARG1(call);
[e9073f2]449 conn->screenbuffer.is_cursor_visible = arg1;
[a8b2b5b2]450 if (consnum == active_console)
451 curs_visibility(arg1);
452 break;
[eaf34f7]453 case CONSOLE_GETCHAR:
[e9073f2]454 if (keybuffer_empty(&conn->keybuffer)) {
[cf28036c]455 /* buffer is empty -> store request */
[00bb6965]456 if (conn->keyrequest_counter <
457 MAX_KEYREQUESTS_BUFFERED) {
[e9073f2]458 fifo_push(conn->keyrequests, callid);
459 conn->keyrequest_counter++;
[cf28036c]460 } else {
[00bb6965]461 /*
462 * No key available and too many
463 * requests => fail.
464 */
[b74959bd]465 ipc_answer_0(callid, ELIMIT);
[cf28036c]466 }
467 continue;
[00bb6965]468 }
[18c485a]469 int ch;
470 keybuffer_pop(&conn->keybuffer, &ch);
471 arg1 = ch;
[eaf34f7]472 break;
473 }
[b74959bd]474 ipc_answer_2(callid, EOK, arg1, arg2);
[eaf34f7]475 }
476}
477
478int main(int argc, char *argv[])
479{
[271b540]480 printf(NAME ": HelenOS Console service\n");
481
[eaf34f7]482 ipcarg_t phonehash;
[501a8ba]483 int kbd_phone;
[79460ae]484 int i;
[da0c91e7]485
486 async_set_client_connection(client_connection);
[51c1b003]487
488 /* Connect to keyboard driver */
489
[b61d47d]490 kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
[c738d65]491 while (kbd_phone < 0) {
[eaf34f7]492 usleep(10000);
[b61d47d]493 kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
[00bb6965]494 }
[51c1b003]495
[38c706cc]496 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0)
[51c1b003]497 return -1;
[290c0db]498 async_new_connection(phonehash, 0, NULL, keyboard_events);
499
[51c1b003]500 /* Connect to framebuffer driver */
501
[b61d47d]502 fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0, 0);
[c738d65]503 while (fb_info.phone < 0) {
[3993b3d]504 usleep(10000);
[b61d47d]505 fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0, 0);
[3993b3d]506 }
[429acb9]507
508 /* Save old kernel screen */
509 kernel_pixmap = switch_screens(-1);
[e1c4849]510
511 /* Initialize gcons */
512 gcons_init(fb_info.phone);
513 /* Synchronize, the gcons can have something in queue */
[0cc4313]514 async_req_0_0(fb_info.phone, FB_FLUSH);
[e92aabf]515 /* Enable double buffering */
[c738d65]516 async_msg_2(fb_info.phone, FB_VIEWPORT_DB, (sysarg_t) -1, 1);
[3993b3d]517
[0cc4313]518 async_req_0_2(fb_info.phone, FB_GET_CSIZE, &fb_info.rows,
[01f5e17]519 &fb_info.cols);
[429acb9]520 set_style_col(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
521 clrscr();
[3993b3d]522
523 /* Init virtual consoles */
[79460ae]524 for (i = 0; i < CONSOLE_COUNT; i++) {
525 connections[i].used = 0;
[01f5e17]526 keybuffer_init(&connections[i].keybuffer);
[cf28036c]527
[01f5e17]528 connections[i].keyrequests.head = 0;
529 connections[i].keyrequests.tail = 0;
[cf28036c]530 connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
531 connections[i].keyrequest_counter = 0;
[3993b3d]532
[01f5e17]533 if (screenbuffer_init(&connections[i].screenbuffer,
534 fb_info.cols, fb_info.rows) == NULL) {
[c738d65]535 /* FIXME: handle error */
[3993b3d]536 return -1;
537 }
[79460ae]538 }
[d32af35]539 connections[KERNEL_CONSOLE].used = 1;
[51c1b003]540
[c738d65]541 interbuffer = mmap(NULL,
[01f5e17]542 sizeof(keyfield_t) * fb_info.cols * fb_info.rows,
543 PROTO_READ | PROTO_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
[c738d65]544 if (!interbuffer) {
[215e375]545 if (ipc_share_out_start(fb_info.phone, interbuffer,
[27d293a]546 AS_AREA_READ) != EOK) {
[01f5e17]547 munmap(interbuffer,
548 sizeof(keyfield_t) * fb_info.cols * fb_info.rows);
[390a678]549 interbuffer = NULL;
550 }
551 }
[a805c24]552
[c738d65]553 curs_goto(0, 0);
[01f5e17]554 curs_visibility(
555 connections[active_console].screenbuffer.is_cursor_visible);
[10569b1]556
[b1f51f0]557 /* Register at NS */
[271b540]558 if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, 0, &phonehash) != 0)
[51c1b003]559 return -1;
560
[271b540]561 // FIXME: avoid connectiong to itself, keep using klog
562 // printf(NAME ": Accepting connections\n");
[eaf34f7]563 async_manager();
[51c1b003]564
565 return 0;
566}
[ce5bcb4]567
568/** @}
569 */
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