source: mainline/console/console.c@ 83b1d61

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 83b1d61 was bd929cfb, checked in by Josef Cejka <malyzelenyhnus@…>, 19 years ago

Some console bugfixes.
  • Property mode set to 100644
File size: 8.7 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
43#define CONSOLE_COUNT 12
44#define MAX_KEYREQUESTS_BUFFERED 32
45
46#define NAME "CONSOLE"
47
48int active_console = 1;
49
50struct {
51 int phone; /**< Framebuffer phone */
52 int rows; /**< Framebuffer rows */
53 int cols; /**< Framebuffer columns */
54} fb_info;
55
56typedef struct {
57 keybuffer_t keybuffer;
58 FIFO_CREATE_STATIC(keyrequests, ipc_callid_t , MAX_KEYREQUESTS_BUFFERED);
59 int keyrequest_counter;
60 int client_phone;
61 int used;
62 screenbuffer_t screenbuffer;
63} connection_t;
64
65connection_t connections[CONSOLE_COUNT];
66
67static int find_free_connection()
68{
69 int i = 0;
70
71 while (i < CONSOLE_COUNT) {
72 if (connections[i].used == 0)
73 return i;
74 ++i;
75 }
76 return CONSOLE_COUNT;
77}
78
79
80static int find_connection(int client_phone)
81{
82 int i = 0;
83
84 while (i < CONSOLE_COUNT) {
85 if (connections[i].client_phone == client_phone)
86 return i;
87 ++i;
88 }
89 return CONSOLE_COUNT;
90}
91
92/** Check key and process special keys.
93 *
94 * */
95static void write_char(int console, char key)
96{
97 screenbuffer_t *scr = &(connections[console].screenbuffer);
98
99 switch (key) {
100 case '\n':
101 scr->position_y += 1;
102 scr->position_x = 0;
103 break;
104 case '\r':
105 break;
106 case '\t':
107 scr->position_x += 8;
108 scr->position_x -= scr->position_x % 8;
109 break;
110 case '\b':
111 if (scr->position_x == 0)
112 break;
113
114 scr->position_x--;
115
116 if (console == active_console) {
117 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, ' ', scr->position_y, scr->position_x, NULL, NULL);
118 }
119
120 screenbuffer_putchar(scr, ' ');
121
122 break;
123 default:
124 if (console == active_console) {
125 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, key, scr->position_y, scr->position_x, NULL, NULL);
126 }
127
128 screenbuffer_putchar(scr, key);
129 scr->position_x++;
130 }
131
132 scr->position_y += (scr->position_x >= scr->size_x);
133
134 if (scr->position_y >= scr->size_y) {
135 scr->position_y = scr->size_y - 1;
136 screenbuffer_clear_line(scr, scr->top_line++);
137 ipc_call_async(fb_info.phone, FB_SCROLL, 1, NULL, NULL);
138 }
139
140 scr->position_x = scr->position_x % scr->size_x;
141
142 if (console == active_console)
143 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, scr->position_y, scr->position_x, NULL, NULL);
144
145}
146
147
148/* Handler for keyboard */
149static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
150{
151 ipc_callid_t callid;
152 ipc_call_t call;
153 int retval;
154 int i, j;
155 char c,d;
156 connection_t *conn;
157
158 /* Ignore parameters, the connection is alread opened */
159 while (1) {
160 callid = async_get_call(&call);
161 switch (IPC_GET_METHOD(call)) {
162 case IPC_M_PHONE_HUNGUP:
163 ipc_answer_fast(callid,0,0,0);
164 /* TODO: Handle hangup */
165 return;
166 case KBD_PUSHCHAR:
167 /* got key from keyboard driver */
168
169 retval = 0;
170 c = IPC_GET_ARG1(call);
171 /* switch to another virtual console */
172
173 conn = &connections[active_console];
174// if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) {
175 if ((c >= '1') && (c < '1' + CONSOLE_COUNT)) {
176 /*FIXME: draw another console content from buffer */
177 if (c - '1' == active_console)
178 break;
179 active_console = c - '1';
180 conn = &connections[active_console];
181
182 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 0, NULL, NULL);
183 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
184
185 for (i = 0; i < conn->screenbuffer.size_x; i++)
186 for (j = 0; j < conn->screenbuffer.size_y; j++) {
187 d = get_field_at(&(conn->screenbuffer),i, j)->character;
188 if (d && d != ' ')
189 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, d, j, i, NULL, NULL);
190 }
191
192 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, conn->screenbuffer.position_y, conn->screenbuffer.position_x, NULL, NULL);
193 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL, NULL);
194
195 break;
196 }
197
198 /* if client is awaiting key, send it */
199 if (conn->keyrequest_counter > 0) {
200 conn->keyrequest_counter--;
201 ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0);
202 break;
203 }
204
205 /*FIXME: else store key to its buffer */
206 keybuffer_push(&conn->keybuffer, c);
207
208 break;
209 default:
210 retval = ENOENT;
211 }
212 ipc_answer_fast(callid, retval, 0, 0);
213 }
214}
215
216/** Default thread for new connections */
217void client_connection(ipc_callid_t iid, ipc_call_t *icall)
218{
219 ipc_callid_t callid;
220 ipc_call_t call;
221 int consnum;
222 ipcarg_t arg1;
223
224 if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
225 ipc_answer_fast(iid,ELIMIT,0,0);
226 return;
227 }
228
229 connections[consnum].used = 1;
230 connections[consnum].client_phone = IPC_GET_ARG3(call);
231 screenbuffer_clear(&(connections[consnum].screenbuffer));
232
233 /* Accept the connection */
234 ipc_answer_fast(iid,0,0,0);
235
236 while (1) {
237 callid = async_get_call(&call);
238 switch (IPC_GET_METHOD(call)) {
239 case IPC_M_PHONE_HUNGUP:
240 /* TODO */
241 ipc_answer_fast(callid, 0,0,0);
242 return;
243 case CONSOLE_PUTCHAR:
244 write_char(consnum, IPC_GET_ARG1(call));
245 break;
246 case CONSOLE_CLEAR:
247 /* Send message to fb */
248 if (consnum == active_console) {
249 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
250 }
251
252 screenbuffer_clear(&(connections[consnum].screenbuffer));
253
254 break;
255 case CONSOLE_GOTO:
256
257 screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call));
258
259 break;
260
261 case CONSOLE_GETCHAR:
262 if (keybuffer_empty(&(connections[consnum].keybuffer))) {
263 /* buffer is empty -> store request */
264 if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) {
265 fifo_push(connections[consnum].keyrequests, callid);
266 connections[consnum].keyrequest_counter++;
267 } else {
268 /* no key available and too many requests => fail */
269 ipc_answer_fast(callid, ELIMIT, 0, 0);
270 }
271 continue;
272 };
273 keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1);
274
275 break;
276 }
277 ipc_answer_fast(callid, 0, arg1, 0);
278 }
279}
280
281int main(int argc, char *argv[])
282{
283 ipcarg_t phonehash;
284 int kbd_phone, fb_phone;
285 ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
286 int i;
287
288 async_set_client_connection(client_connection);
289
290 /* Connect to keyboard driver */
291
292 while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
293 usleep(10000);
294 };
295
296 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
297 return -1;
298 };
299 async_new_connection(phonehash, 0, NULL, keyboard_events);
300
301 /* Connect to framebuffer driver */
302
303 while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
304 usleep(10000);
305 }
306
307 ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols));
308 ipc_call_sync(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL);
309
310 /* Init virtual consoles */
311 for (i = 0; i < CONSOLE_COUNT; i++) {
312 connections[i].used = 0;
313 keybuffer_init(&(connections[i].keybuffer));
314
315 connections[i].keyrequests.head = connections[i].keyrequests.tail = 0;
316 connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
317 connections[i].keyrequest_counter = 0;
318
319 if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) {
320 /*FIXME: handle error */
321 return -1;
322 }
323 }
324
325 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, 0, 0, NULL, NULL);
326
327 if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
328 return -1;
329 };
330
331 async_manager();
332
333 return 0;
334}
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