source: mainline/console/console.c@ 2d22049

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 2d22049 was 838c48e, checked in by Josef Cejka <malyzelenyhnus@…>, 19 years ago

Fix cursor position.
Do not rewrite active console on switch to it.
  • Property mode set to 100644
File size: 8.7 KB
RevLine 
[51c1b003]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>
[79460ae]31#include <fb.h>
[51c1b003]32#include <ipc/ipc.h>
[79460ae]33#include <ipc/fb.h>
[51c1b003]34#include <ipc/services.h>
35#include <errno.h>
[79460ae]36#include <key_buffer.h>
37#include <console.h>
[eaf34f7]38#include <unistd.h>
39#include <async.h>
[cf28036c]40#include <libadt/fifo.h>
[3993b3d]41#include <screenbuffer.h>
[79460ae]42
[10569b1]43#define CONSOLE_COUNT 12
[cf28036c]44#define MAX_KEYREQUESTS_BUFFERED 32
[51c1b003]45
46#define NAME "CONSOLE"
47
[ad123964]48int active_console = 1;
[eaf34f7]49
[3993b3d]50struct {
51 int phone; /**< Framebuffer phone */
52 int rows; /**< Framebuffer rows */
53 int cols; /**< Framebuffer columns */
54} fb_info;
55
[79460ae]56typedef struct {
57 keybuffer_t keybuffer;
[cf28036c]58 FIFO_CREATE_STATIC(keyrequests, ipc_callid_t , MAX_KEYREQUESTS_BUFFERED);
59 int keyrequest_counter;
[79460ae]60 int client_phone;
61 int used;
[3993b3d]62 screenbuffer_t screenbuffer;
[79460ae]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
[10569b1]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 scr->position_y = scr->position_y % scr->size_y;
[838c48e]142 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, scr->position_y, scr->position_x, NULL, NULL);
[10569b1]143
144}
145
146
[eaf34f7]147/* Handler for keyboard */
148static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
[51c1b003]149{
[eaf34f7]150 ipc_callid_t callid;
[51c1b003]151 ipc_call_t call;
[eaf34f7]152 int retval;
[3993b3d]153 int i, j;
[c1d2c9d]154 char c,d;
155 connection_t *conn;
[eaf34f7]156
157 /* Ignore parameters, the connection is alread opened */
158 while (1) {
159 callid = async_get_call(&call);
160 switch (IPC_GET_METHOD(call)) {
161 case IPC_M_PHONE_HUNGUP:
162 ipc_answer_fast(callid,0,0,0);
163 /* TODO: Handle hangup */
164 return;
165 case KBD_PUSHCHAR:
166 /* got key from keyboard driver */
[b27a97bb]167
[eaf34f7]168 retval = 0;
[ad123964]169 c = IPC_GET_ARG1(call);
[eaf34f7]170 /* switch to another virtual console */
[cf28036c]171
[c1d2c9d]172 conn = &connections[active_console];
[da0c91e7]173// if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) {
174 if ((c >= '1') && (c < '1' + CONSOLE_COUNT)) {
[3993b3d]175 /*FIXME: draw another console content from buffer */
[838c48e]176 if (c - '1' == active_console)
[10569b1]177 break;
[da0c91e7]178 active_console = c - '1';
[c1d2c9d]179 conn = &connections[active_console];
180
181 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 0, NULL, NULL);
[3993b3d]182 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
[10569b1]183
[c1d2c9d]184 for (i = 0; i < conn->screenbuffer.size_x; i++)
185 for (j = 0; j < conn->screenbuffer.size_y; j++) {
186 d = get_field_at(&(conn->screenbuffer),i, j)->character;
187 if (d && d != ' ')
188 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, d, j, i, NULL, NULL);
189 }
[838c48e]190
[c1d2c9d]191 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, conn->screenbuffer.position_y, conn->screenbuffer.position_x, NULL, NULL);
192 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL, NULL);
[3993b3d]193
[eaf34f7]194 break;
195 }
[cf28036c]196
197 /* if client is awaiting key, send it */
[c1d2c9d]198 if (conn->keyrequest_counter > 0) {
199 conn->keyrequest_counter--;
200 ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0);
[cf28036c]201 break;
202 }
203
204 /*FIXME: else store key to its buffer */
[c1d2c9d]205 keybuffer_push(&conn->keybuffer, c);
[ad123964]206
[eaf34f7]207 break;
208 default:
[1029d3d3]209 retval = ENOENT;
[eaf34f7]210 }
[1029d3d3]211 ipc_answer_fast(callid, retval, 0, 0);
[eaf34f7]212 }
213}
214
215/** Default thread for new connections */
216void client_connection(ipc_callid_t iid, ipc_call_t *icall)
217{
[51c1b003]218 ipc_callid_t callid;
[eaf34f7]219 ipc_call_t call;
220 int consnum;
221 ipcarg_t arg1;
222
223 if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
224 ipc_answer_fast(iid,ELIMIT,0,0);
225 return;
226 }
[10569b1]227
[eaf34f7]228 connections[consnum].used = 1;
229 connections[consnum].client_phone = IPC_GET_ARG3(call);
[3993b3d]230 screenbuffer_clear(&(connections[consnum].screenbuffer));
[10569b1]231
[eaf34f7]232 /* Accept the connection */
233 ipc_answer_fast(iid,0,0,0);
234
235 while (1) {
236 callid = async_get_call(&call);
237 switch (IPC_GET_METHOD(call)) {
238 case IPC_M_PHONE_HUNGUP:
239 /* TODO */
240 ipc_answer_fast(callid, 0,0,0);
241 return;
242 case CONSOLE_PUTCHAR:
[10569b1]243 write_char(consnum, IPC_GET_ARG1(call));
[ad123964]244 break;
245 case CONSOLE_CLEAR:
[3993b3d]246 /* Send message to fb */
247 if (consnum == active_console) {
248 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
249 }
250
251 screenbuffer_clear(&(connections[consnum].screenbuffer));
252
[eaf34f7]253 break;
[ad123964]254 case CONSOLE_GOTO:
[3993b3d]255
256 screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call));
257
[ad123964]258 break;
259
[eaf34f7]260 case CONSOLE_GETCHAR:
[cf28036c]261 if (keybuffer_empty(&(connections[consnum].keybuffer))) {
262 /* buffer is empty -> store request */
263 if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) {
264 fifo_push(connections[consnum].keyrequests, callid);
265 connections[consnum].keyrequest_counter++;
266 } else {
267 /* no key available and too many requests => fail */
268 ipc_answer_fast(callid, ELIMIT, 0, 0);
269 }
270 continue;
[eaf34f7]271 };
[ad123964]272 keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1);
[b27a97bb]273
[eaf34f7]274 break;
275 }
[b27a97bb]276 ipc_answer_fast(callid, 0, arg1, 0);
[eaf34f7]277 }
278}
279
280int main(int argc, char *argv[])
281{
282 ipcarg_t phonehash;
[79460ae]283 int kbd_phone, fb_phone;
[51c1b003]284 ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
[79460ae]285 int i;
[da0c91e7]286
287 async_set_client_connection(client_connection);
[51c1b003]288
289 /* Connect to keyboard driver */
290
[79460ae]291 while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
[eaf34f7]292 usleep(10000);
[51c1b003]293 };
294
[eaf34f7]295 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
[51c1b003]296 return -1;
297 };
[eaf34f7]298 async_new_connection(phonehash, 0, NULL, keyboard_events);
[51c1b003]299
300 /* Connect to framebuffer driver */
301
[3993b3d]302 while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
303 usleep(10000);
304 }
305
306 ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols));
[c1d2c9d]307 ipc_call_sync(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL);
[3993b3d]308
309 /* Init virtual consoles */
[79460ae]310 for (i = 0; i < CONSOLE_COUNT; i++) {
311 connections[i].used = 0;
312 keybuffer_init(&(connections[i].keybuffer));
[cf28036c]313
314 connections[i].keyrequests.head = connections[i].keyrequests.tail = 0;
315 connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
316 connections[i].keyrequest_counter = 0;
[3993b3d]317
318 if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) {
319 /*FIXME: handle error */
320 return -1;
321 }
[79460ae]322 }
[51c1b003]323
[10569b1]324
[eaf34f7]325 if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
[51c1b003]326 return -1;
327 };
328
[eaf34f7]329 async_manager();
[51c1b003]330
331 return 0;
332}
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