source: mainline/console/console.c@ bb51e9a8

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since bb51e9a8 was bb51e9a8, checked in by Josef Cejka <malyzelenyhnus@…>, 19 years ago

Fixed ipc_call_sync calling bug.
  • Property mode set to 100644
File size: 8.8 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 ipcarg_t rows; /**< Framebuffer rows */
53 ipcarg_t 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
65
66
67connection_t connections[CONSOLE_COUNT];
68
69static int find_free_connection()
70{
71 int i = 0;
72
73 while (i < CONSOLE_COUNT) {
74 if (connections[i].used == 0)
75 return i;
76 ++i;
77 }
78 return CONSOLE_COUNT;
79}
80
81
82static int find_connection(int client_phone)
83{
84 int i = 0;
85
86 while (i < CONSOLE_COUNT) {
87 if (connections[i].client_phone == client_phone)
88 return i;
89 ++i;
90 }
91 return CONSOLE_COUNT;
92}
93
94/** Check key and process special keys.
95 *
96 * */
97static void write_char(int console, char key)
98{
99 screenbuffer_t *scr = &(connections[console].screenbuffer);
100
101 switch (key) {
102 case '\n':
103 scr->position_y += 1;
104 scr->position_x = 0;
105 break;
106 case '\r':
107 break;
108 case '\t':
109 scr->position_x += 8;
110 scr->position_x -= scr->position_x % 8;
111 break;
112 case '\b':
113 if (scr->position_x == 0)
114 break;
115
116 scr->position_x--;
117
118 if (console == active_console) {
119 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, ' ', scr->position_y, scr->position_x, NULL, NULL);
120 }
121
122 screenbuffer_putchar(scr, ' ');
123
124 break;
125 default:
126 if (console == active_console) {
127 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, key, scr->position_y, scr->position_x, NULL, NULL);
128 }
129
130 screenbuffer_putchar(scr, key);
131 scr->position_x++;
132 }
133
134 scr->position_y += (scr->position_x >= scr->size_x);
135
136 if (scr->position_y >= scr->size_y) {
137 scr->position_y = scr->size_y - 1;
138 screenbuffer_clear_line(scr, scr->top_line++);
139 ipc_call_async(fb_info.phone, FB_SCROLL, 1, NULL, NULL);
140 }
141
142 scr->position_x = scr->position_x % scr->size_x;
143
144 if (console == active_console)
145 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, scr->position_y, scr->position_x, NULL, NULL);
146
147}
148
149
150/* Handler for keyboard */
151static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
152{
153 ipc_callid_t callid;
154 ipc_call_t call;
155 int retval;
156 int i, j;
157 char c,d;
158 connection_t *conn;
159 keyfield_t *interbuffer = NULL;
160
161// interbuffer = mmap(,, PROTO_READ|PROTO_WRITE, MAP_ANONYMOUS, , );
162
163 /* Ignore parameters, the connection is alread opened */
164 while (1) {
165 callid = async_get_call(&call);
166 switch (IPC_GET_METHOD(call)) {
167 case IPC_M_PHONE_HUNGUP:
168 ipc_answer_fast(callid,0,0,0);
169 /* TODO: Handle hangup */
170 return;
171 case KBD_PUSHCHAR:
172 /* got key from keyboard driver */
173
174 retval = 0;
175 c = IPC_GET_ARG1(call);
176 /* switch to another virtual console */
177
178 conn = &connections[active_console];
179// if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) {
180 if ((c >= '1') && (c < '1' + CONSOLE_COUNT)) {
181 /*FIXME: draw another console content from buffer */
182 if (c - '1' == active_console)
183 break;
184 active_console = c - '1';
185 conn = &connections[active_console];
186
187 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 0, NULL, NULL);
188 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
189
190 for (i = 0; i < conn->screenbuffer.size_x; i++)
191 for (j = 0; j < conn->screenbuffer.size_y; j++) {
192 d = get_field_at(&(conn->screenbuffer),i, j)->character;
193 if (d && d != ' ')
194 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, d, j, i, NULL, NULL);
195 }
196
197 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, conn->screenbuffer.position_y, conn->screenbuffer.position_x, NULL, NULL);
198 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL, NULL);
199
200 break;
201 }
202
203 /* if client is awaiting key, send it */
204 if (conn->keyrequest_counter > 0) {
205 conn->keyrequest_counter--;
206 ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0);
207 break;
208 }
209
210 /*FIXME: else store key to its buffer */
211 keybuffer_push(&conn->keybuffer, c);
212
213 break;
214 default:
215 retval = ENOENT;
216 }
217 ipc_answer_fast(callid, retval, 0, 0);
218 }
219}
220
221/** Default thread for new connections */
222void client_connection(ipc_callid_t iid, ipc_call_t *icall)
223{
224 ipc_callid_t callid;
225 ipc_call_t call;
226 int consnum;
227 ipcarg_t arg1;
228
229 if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
230 ipc_answer_fast(iid,ELIMIT,0,0);
231 return;
232 }
233
234 connections[consnum].used = 1;
235 connections[consnum].client_phone = IPC_GET_ARG3(call);
236 screenbuffer_clear(&(connections[consnum].screenbuffer));
237
238 /* Accept the connection */
239 ipc_answer_fast(iid,0,0,0);
240
241 while (1) {
242 callid = async_get_call(&call);
243 switch (IPC_GET_METHOD(call)) {
244 case IPC_M_PHONE_HUNGUP:
245 /* TODO */
246 ipc_answer_fast(callid, 0,0,0);
247 return;
248 case CONSOLE_PUTCHAR:
249 write_char(consnum, IPC_GET_ARG1(call));
250 break;
251 case CONSOLE_CLEAR:
252 /* Send message to fb */
253 if (consnum == active_console) {
254 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
255 }
256
257 screenbuffer_clear(&(connections[consnum].screenbuffer));
258
259 break;
260 case CONSOLE_GOTO:
261
262 screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call));
263
264 break;
265
266 case CONSOLE_GETCHAR:
267 if (keybuffer_empty(&(connections[consnum].keybuffer))) {
268 /* buffer is empty -> store request */
269 if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) {
270 fifo_push(connections[consnum].keyrequests, callid);
271 connections[consnum].keyrequest_counter++;
272 } else {
273 /* no key available and too many requests => fail */
274 ipc_answer_fast(callid, ELIMIT, 0, 0);
275 }
276 continue;
277 };
278 keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1);
279
280 break;
281 }
282 ipc_answer_fast(callid, 0, arg1, 0);
283 }
284}
285
286int main(int argc, char *argv[])
287{
288 ipcarg_t phonehash;
289 int kbd_phone, fb_phone;
290 ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
291 int i;
292
293 async_set_client_connection(client_connection);
294
295 /* Connect to keyboard driver */
296
297 while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
298 usleep(10000);
299 };
300
301 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
302 return -1;
303 };
304
305 /* Connect to framebuffer driver */
306
307 while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
308 usleep(10000);
309 }
310
311 ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols));
312 ipc_call_sync(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL);
313
314 /* Init virtual consoles */
315 for (i = 0; i < CONSOLE_COUNT; i++) {
316 connections[i].used = 0;
317 keybuffer_init(&(connections[i].keybuffer));
318
319 connections[i].keyrequests.head = connections[i].keyrequests.tail = 0;
320 connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
321 connections[i].keyrequest_counter = 0;
322
323 if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) {
324 /*FIXME: handle error */
325 return -1;
326 }
327 }
328
329 async_new_connection(phonehash, 0, NULL, keyboard_events);
330
331 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, 0, 0, NULL, NULL);
332
333 if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
334 return -1;
335 };
336
337 async_manager();
338
339 return 0;
340}
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