source: mainline/console/console.c@ c1d2c9d

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since c1d2c9d was c1d2c9d, checked in by Ondrej Palkovsky <ondrap@…>, 19 years ago

Added integration of console & fb.
Added ipc_call_async_3 call.
  • Property mode set to 100644
File size: 7.6 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 8
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/* Handler for keyboard */
93static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
94{
95 ipc_callid_t callid;
96 ipc_call_t call;
97 int retval;
98 int i, j;
99 char c,d;
100 connection_t *conn;
101
102 /* Ignore parameters, the connection is alread opened */
103 while (1) {
104 callid = async_get_call(&call);
105 switch (IPC_GET_METHOD(call)) {
106 case IPC_M_PHONE_HUNGUP:
107 ipc_answer_fast(callid,0,0,0);
108 /* TODO: Handle hangup */
109 return;
110 case KBD_PUSHCHAR:
111 /* got key from keyboard driver */
112
113 retval = 0;
114 c = IPC_GET_ARG1(call);
115 /* switch to another virtual console */
116
117 conn = &connections[active_console];
118 if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) {
119 /*FIXME: draw another console content from buffer */
120
121 active_console = c - KBD_KEY_F1;
122 conn = &connections[active_console];
123
124 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 0, NULL, NULL);
125 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
126 for (i = 0; i < conn->screenbuffer.size_x; i++)
127 for (j = 0; j < conn->screenbuffer.size_y; j++) {
128 d = get_field_at(&(conn->screenbuffer),i, j)->character;
129 if (d && d != ' ')
130 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, d, j, i, NULL, NULL);
131 }
132 ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, conn->screenbuffer.position_y, conn->screenbuffer.position_x, NULL, NULL);
133 ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL, NULL);
134
135 break;
136 }
137
138 /* if client is awaiting key, send it */
139 if (conn->keyrequest_counter > 0) {
140 conn->keyrequest_counter--;
141 ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0);
142 break;
143 }
144
145 /*FIXME: else store key to its buffer */
146 keybuffer_push(&conn->keybuffer, c);
147
148 break;
149 default:
150 retval = ENOENT;
151 }
152 ipc_answer_fast(callid, retval, 0, 0);
153 }
154}
155
156/** Default thread for new connections */
157void client_connection(ipc_callid_t iid, ipc_call_t *icall)
158{
159 ipc_callid_t callid;
160 ipc_call_t call;
161 int consnum;
162 ipcarg_t arg1;
163
164 if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
165 ipc_answer_fast(iid,ELIMIT,0,0);
166 return;
167 }
168
169 connections[consnum].used = 1;
170 connections[consnum].client_phone = IPC_GET_ARG3(call);
171 screenbuffer_clear(&(connections[consnum].screenbuffer));
172
173 /* Accept the connection */
174 ipc_answer_fast(iid,0,0,0);
175
176 while (1) {
177 callid = async_get_call(&call);
178 switch (IPC_GET_METHOD(call)) {
179 case IPC_M_PHONE_HUNGUP:
180 /* TODO */
181 ipc_answer_fast(callid, 0,0,0);
182 return;
183 case CONSOLE_PUTCHAR:
184
185 /* Send message to fb */
186 if (consnum == active_console) {
187 ipc_call_async_3(fb_info.phone, FB_PUTCHAR, IPC_GET_ARG2(call), connections[consnum].screenbuffer.position_y, \
188 connections[consnum].screenbuffer.position_x, NULL, NULL);
189 }
190
191 screenbuffer_putchar(&(connections[consnum].screenbuffer), IPC_GET_ARG2(call));
192 break;
193 case CONSOLE_CLEAR:
194 /* Send message to fb */
195 if (consnum == active_console) {
196 ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL);
197 }
198
199 screenbuffer_clear(&(connections[consnum].screenbuffer));
200
201 break;
202 case CONSOLE_GOTO:
203
204 screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call));
205
206 break;
207
208 case CONSOLE_GETCHAR:
209 if (keybuffer_empty(&(connections[consnum].keybuffer))) {
210 /* buffer is empty -> store request */
211 if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) {
212 fifo_push(connections[consnum].keyrequests, callid);
213 connections[consnum].keyrequest_counter++;
214 } else {
215 /* no key available and too many requests => fail */
216 ipc_answer_fast(callid, ELIMIT, 0, 0);
217 }
218 continue;
219 };
220 keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1);
221
222 break;
223 }
224 ipc_answer_fast(callid, 0, arg1, 0);
225 }
226}
227
228int main(int argc, char *argv[])
229{
230 ipcarg_t phonehash;
231 int kbd_phone, fb_phone;
232 ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
233 int i;
234
235 /* Connect to keyboard driver */
236
237 while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
238 usleep(10000);
239 };
240
241 if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
242 return -1;
243 };
244 async_new_connection(phonehash, 0, NULL, keyboard_events);
245
246 /* Connect to framebuffer driver */
247
248 while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
249 usleep(10000);
250 }
251
252 ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols));
253 ipc_call_sync(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL);
254
255 /* Init virtual consoles */
256 for (i = 0; i < CONSOLE_COUNT; i++) {
257 connections[i].used = 0;
258 keybuffer_init(&(connections[i].keybuffer));
259
260 connections[i].keyrequests.head = connections[i].keyrequests.tail = 0;
261 connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
262 connections[i].keyrequest_counter = 0;
263
264 if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) {
265 /*FIXME: handle error */
266 return -1;
267 }
268 }
269
270 if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
271 return -1;
272 };
273
274 async_manager();
275
276 return 0;
277}
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