source: mainline/console/console.c@ a9bd960c

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since a9bd960c was a9bd960c, checked in by Josef Cejka <malyzelenyhnus@…>, 19 years ago

Added doxygen comments.
Console now supports SET_STYLE call.
  • Property mode set to 100644
File size: 10.7 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
30#include <kbd.h>
31#include <fb.h>
32#include <ipc/ipc.h>
33#include <ipc/fb.h>
34#include <ipc/services.h>
35#include <errno.h>
36#include <key_buffer.h>
37#include <console.h>
38#include <unistd.h>
39#include <async.h>
40#include <libadt/fifo.h>
41#include <screenbuffer.h>
42#include <sys/mman.h>
43
44#include "gcons.h"
45
46#define MAX_KEYREQUESTS_BUFFERED 32
47
48#define NAME "CONSOLE"
49
50int active_console = 0;
51
52struct {
53 int phone; /**< Framebuffer phone */
54 ipcarg_t rows; /**< Framebuffer rows */
55 ipcarg_t cols; /**< Framebuffer columns */
56} fb_info;
57
58typedef struct {
59 keybuffer_t keybuffer;
60 FIFO_CREATE_STATIC(keyrequests, ipc_callid_t , MAX_KEYREQUESTS_BUFFERED);
61 int keyrequest_counter;
62 int client_phone;
63 int used;
64 screenbuffer_t screenbuffer;
65} connection_t;
66
67
68
69connection_t connections[CONSOLE_COUNT];
70keyfield_t *interbuffer = NULL;
71
72static int find_free_connection()
73{
74 int i = 0;
75
76 while (i < CONSOLE_COUNT) {
77 if (connections[i].used == 0)
78 return i;
79 ++i;
80 }
81 return CONSOLE_COUNT;
82}
83
84
85static int find_connection(int client_phone)
86{
87 int i = 0;
88
89 while (i < CONSOLE_COUNT) {
90 if (connections[i].client_phone == client_phone)
91 return i;
92 ++i;
93 }
94 return CONSOLE_COUNT;
95}
96
97/** Check key and process special keys.
98 *
99 * */
100static void write_char(int console, char key)
101{
102 screenbuffer_t *scr = &(connections[console].screenbuffer);
103
104 switch (key) {
105 case '\n':
106 scr->position_y += 1;
107 scr->position_x = 0;
108 break;
109 case '\r':
110 break;
111 case '\t':
112 scr->position_x += 8;
113 scr->position_x -= scr->position_x % 8;
114 break;
115 case '\b':
116 if (scr->position_x == 0)
117 break;
118
119 scr->position_x--;
120
121 if (console == active_console) {
122 nsend_call_3(fb_info.phone, FB_PUTCHAR, ' ', scr->position_y, scr->position_x);
123 }
124
125 screenbuffer_putchar(scr, ' ');
126
127 break;
128 default:
129 if (console == active_console) {
130 nsend_call_3(fb_info.phone, FB_PUTCHAR, key, scr->position_y, scr->position_x);
131 }
132
133 screenbuffer_putchar(scr, key);
134 scr->position_x++;
135 }
136
137 scr->position_y += (scr->position_x >= scr->size_x);
138
139 if (scr->position_y >= scr->size_y) {
140 scr->position_y = scr->size_y - 1;
141 screenbuffer_clear_line(scr, scr->top_line++);
142 if (console == active_console)
143 nsend_call(fb_info.phone, FB_SCROLL, 1);
144 }
145
146 scr->position_x = scr->position_x % scr->size_x;
147
148 if (console == active_console)
149 send_call_2(fb_info.phone, FB_CURSOR_GOTO, scr->position_y, scr->position_x);
150
151}
152
153
154/* Handler for keyboard */
155static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
156{
157 ipc_callid_t callid;
158 ipc_call_t call;
159 int retval;
160 int i, j;
161 char c,d;
162 connection_t *conn;
163
164 /* Ignore parameters, the connection is alread opened */
165 while (1) {
166 callid = async_get_call(&call);
167 switch (IPC_GET_METHOD(call)) {
168 case IPC_M_PHONE_HUNGUP:
169 ipc_answer_fast(callid,0,0,0);
170 /* TODO: Handle hangup */
171 return;
172 case KBD_PUSHCHAR:
173 /* got key from keyboard driver */
174
175 retval = 0;
176 c = IPC_GET_ARG1(call);
177 /* switch to another virtual console */
178
179 conn = &connections[active_console];
180// if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) {
181 if ((c >= '0') && (c < '0' + CONSOLE_COUNT)) {
182 if (c == '0') {
183 /* switch to kernel console*/
184 nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 0);
185 nsend_call_2(fb_info.phone, FB_SET_STYLE, DEFAULT_FOREGROUND_COLOR, DEFAULT_BACKGROUND_COLOR);
186 nsend_call(fb_info.phone, FB_CLEAR, 0);
187 /* FIXME: restore kernel console */
188 __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE);
189 break;
190
191 } else {
192 c = c - '1';
193 if (c == active_console)
194 break;
195 active_console = c;
196 gcons_change_console(c);
197
198 }
199
200 conn = &connections[active_console];
201
202 nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 0);
203
204 if (interbuffer) {
205 for (i = 0; i < conn->screenbuffer.size_x; i++)
206 for (j = 0; j < conn->screenbuffer.size_y; j++)
207 interbuffer[i + j*conn->screenbuffer.size_x] = *get_field_at(&(conn->screenbuffer),i, j);
208
209 sync_send_2(fb_info.phone, FB_DRAW_TEXT_DATA, 0, 0, NULL, NULL);
210 } else {
211 nsend_call(fb_info.phone, FB_CLEAR, 0);
212
213
214 for (i = 0; i < conn->screenbuffer.size_x; i++)
215 for (j = 0; j < conn->screenbuffer.size_y; j++) {
216 d = get_field_at(&(conn->screenbuffer),i, j)->character;
217 if (d && d != ' ')
218 nsend_call_3(fb_info.phone, FB_PUTCHAR, d, j, i);
219 }
220
221 }
222 nsend_call_2(fb_info.phone, FB_CURSOR_GOTO, conn->screenbuffer.position_y, conn->screenbuffer.position_x);
223 nsend_call_2(fb_info.phone, FB_SET_STYLE, conn->screenbuffer.style.fg_color, \
224 conn->screenbuffer.style.bg_color);
225 send_call(fb_info.phone, FB_CURSOR_VISIBILITY, 1);
226
227 break;
228 }
229
230 /* if client is awaiting key, send it */
231 if (conn->keyrequest_counter > 0) {
232 conn->keyrequest_counter--;
233 ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0);
234 break;
235 }
236
237 /*FIXME: else store key to its buffer */
238 keybuffer_push(&conn->keybuffer, c);
239
240 break;
241 default:
242 retval = ENOENT;
243 }
244 ipc_answer_fast(callid, retval, 0, 0);
245 }
246}
247
248/** Default thread for new connections */
249static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
250{
251 ipc_callid_t callid;
252 ipc_call_t call;
253 int consnum;
254 ipcarg_t arg1, arg2;
255
256 if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
257 ipc_answer_fast(iid,ELIMIT,0,0);
258 return;
259 }
260
261 connections[consnum].used = 1;
262 connections[consnum].client_phone = IPC_GET_ARG3(call);
263 screenbuffer_clear(&(connections[consnum].screenbuffer));
264
265 /* Accept the connection */
266 ipc_answer_fast(iid,0,0,0);
267
268 while (1) {
269 callid = async_get_call(&call);
270 arg1 = arg2 = 0;
271 switch (IPC_GET_METHOD(call)) {
272 case IPC_M_PHONE_HUNGUP:
273 /* TODO */
274 ipc_answer_fast(callid, 0,0,0);
275 return;
276 case CONSOLE_PUTCHAR:
277 write_char(consnum, IPC_GET_ARG1(call));
278 break;
279 case CONSOLE_CLEAR:
280 /* Send message to fb */
281 if (consnum == active_console) {
282 send_call(fb_info.phone, FB_CLEAR, 0);
283 }
284
285 screenbuffer_clear(&(connections[consnum].screenbuffer));
286
287 break;
288 case CONSOLE_GOTO:
289
290 screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call));
291
292 break;
293
294 case CONSOLE_GETSIZE:
295 arg1 = fb_info.cols;
296 arg2 = fb_info.rows;
297 break;
298 case CONSOLE_FLUSH:
299 sync_send_2(fb_info.phone, FB_FLUSH, 0, 0, NULL, NULL);
300 break;
301 case CONSOLE_SET_STYLE:
302
303 arg1 = IPC_GET_ARG1(call);
304 arg2 = IPC_GET_ARG2(call);
305 screenbuffer_set_style(&(connections[consnum]),arg1, arg2);
306 if (consnum == active_console)
307 nsend_call_2(fb_info.phone, FB_SET_STYLE, arg1, arg2);
308
309 break;
310 case CONSOLE_GETCHAR:
311 if (keybuffer_empty(&(connections[consnum].keybuffer))) {
312 /* buffer is empty -> store request */
313 if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) {
314 fifo_push(connections[consnum].keyrequests, callid);
315 connections[consnum].keyrequest_counter++;
316 } else {
317 /* no key available and too many requests => fail */
318 ipc_answer_fast(callid, ELIMIT, 0, 0);
319 }
320 continue;
321 };
322 keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1);
323
324 break;
325 }
326 ipc_answer_fast(callid, 0, arg1, arg2);
327 }
328}
329
330int main(int argc, char *argv[])
331{
332 ipcarg_t phonehash;
333 int kbd_phone, fb_phone;
334 ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
335 int i;
336
337 async_set_client_connection(client_connection);
338
339 /* Connect to keyboard driver */
340
341 while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
342 usleep(10000);
343 };
344
345 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
346 return -1;
347 };
348
349 /* Connect to framebuffer driver */
350
351 while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
352 usleep(10000);
353 }
354
355 /* Initialize gcons */
356 gcons_init(fb_info.phone);
357 /* Synchronize, the gcons can have something in queue */
358 sync_send_2(fb_info.phone, FB_GET_CSIZE, 0, 0, NULL, NULL);
359
360
361 ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols));
362 nsend_call_2(fb_info.phone, FB_SET_STYLE, DEFAULT_FOREGROUND_COLOR, DEFAULT_BACKGROUND_COLOR);
363 nsend_call(fb_info.phone, FB_CLEAR, 0);
364
365 /* Init virtual consoles */
366 for (i = 0; i < CONSOLE_COUNT; i++) {
367 connections[i].used = 0;
368 keybuffer_init(&(connections[i].keybuffer));
369
370 connections[i].keyrequests.head = connections[i].keyrequests.tail = 0;
371 connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
372 connections[i].keyrequest_counter = 0;
373
374 if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) {
375 /*FIXME: handle error */
376 return -1;
377 }
378 }
379
380 if ((interbuffer = mmap(NULL, sizeof(keyfield_t) * fb_info.cols * fb_info.rows , PROTO_READ|PROTO_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, 0 ,0 )) != NULL) {
381 if (ipc_call_sync_3(fb_info.phone, IPC_M_AS_AREA_SEND, (ipcarg_t)interbuffer, 0, AS_AREA_READ | AS_AREA_CACHEABLE, NULL, NULL, NULL) != 0) {
382 munmap(interbuffer, sizeof(keyfield_t) * fb_info.cols * fb_info.rows);
383 interbuffer = NULL;
384 }
385 }
386
387 /* FIXME: save kernel console screen */
388
389 async_new_connection(phonehash, 0, NULL, keyboard_events);
390
391 sync_send_2(fb_info.phone, FB_CURSOR_GOTO, 0, 0, NULL, NULL);
392 nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 1);
393
394 /* Register at NS */
395 if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
396 return -1;
397 };
398
399 async_manager();
400
401 return 0;
402}
403
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