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1445 | cejka | 1 | /* |
2 | * Copyright (C) 2006 Josef Cejka |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | |||
30 | #include <kbd.h> |
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1451 | cejka | 31 | #include <fb.h> |
1445 | cejka | 32 | #include <ipc/ipc.h> |
1451 | cejka | 33 | #include <ipc/fb.h> |
1445 | cejka | 34 | #include <ipc/services.h> |
35 | #include <errno.h> |
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1451 | cejka | 36 | #include <key_buffer.h> |
37 | #include <console.h> |
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1453 | palkovsky | 38 | #include <unistd.h> |
39 | #include <async.h> |
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1481 | cejka | 40 | #include <libadt/fifo.h> |
1487 | cejka | 41 | #include <screenbuffer.h> |
1512 | cejka | 42 | #include <sys/mman.h> |
1445 | cejka | 43 | |
1522 | palkovsky | 44 | #include "gcons.h" |
45 | |||
1481 | cejka | 46 | #define MAX_KEYREQUESTS_BUFFERED 32 |
1451 | cejka | 47 | |
1445 | cejka | 48 | #define NAME "CONSOLE" |
49 | |||
1512 | cejka | 50 | int active_console = 0; |
1453 | palkovsky | 51 | |
1487 | cejka | 52 | struct { |
53 | int phone; /**< Framebuffer phone */ |
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1506 | cejka | 54 | ipcarg_t rows; /**< Framebuffer rows */ |
55 | ipcarg_t cols; /**< Framebuffer columns */ |
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1487 | cejka | 56 | } fb_info; |
57 | |||
1451 | cejka | 58 | typedef struct { |
59 | keybuffer_t keybuffer; |
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1481 | cejka | 60 | FIFO_CREATE_STATIC(keyrequests, ipc_callid_t , MAX_KEYREQUESTS_BUFFERED); |
61 | int keyrequest_counter; |
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1451 | cejka | 62 | int client_phone; |
63 | int used; |
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1487 | cejka | 64 | screenbuffer_t screenbuffer; |
1451 | cejka | 65 | } connection_t; |
66 | |||
1506 | cejka | 67 | |
68 | |||
1451 | cejka | 69 | connection_t connections[CONSOLE_COUNT]; |
1512 | cejka | 70 | keyfield_t *interbuffer = NULL; |
71 | |||
1451 | cejka | 72 | static int find_free_connection() |
73 | { |
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74 | int i = 0; |
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75 | |||
76 | while (i < CONSOLE_COUNT) { |
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77 | if (connections[i].used == 0) |
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78 | return i; |
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79 | ++i; |
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80 | } |
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81 | return CONSOLE_COUNT; |
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82 | } |
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83 | |||
84 | |||
85 | static int find_connection(int client_phone) |
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86 | { |
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87 | int i = 0; |
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88 | |||
89 | while (i < CONSOLE_COUNT) { |
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90 | if (connections[i].client_phone == client_phone) |
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91 | return i; |
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92 | ++i; |
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93 | } |
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94 | return CONSOLE_COUNT; |
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95 | } |
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96 | |||
1497 | cejka | 97 | /** Check key and process special keys. |
98 | * |
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99 | * */ |
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100 | static void write_char(int console, char key) |
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101 | { |
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102 | screenbuffer_t *scr = &(connections[console].screenbuffer); |
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103 | |||
104 | switch (key) { |
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105 | case '\n': |
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106 | scr->position_y += 1; |
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107 | scr->position_x = 0; |
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108 | break; |
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109 | case '\r': |
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110 | break; |
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111 | case '\t': |
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112 | scr->position_x += 8; |
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113 | scr->position_x -= scr->position_x % 8; |
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114 | break; |
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115 | case '\b': |
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116 | if (scr->position_x == 0) |
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117 | break; |
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118 | |||
119 | scr->position_x--; |
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120 | |||
121 | if (console == active_console) { |
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1518 | palkovsky | 122 | nsend_call_3(fb_info.phone, FB_PUTCHAR, ' ', scr->position_y, scr->position_x); |
1497 | cejka | 123 | } |
124 | |||
125 | screenbuffer_putchar(scr, ' '); |
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126 | |||
127 | break; |
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128 | default: |
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129 | if (console == active_console) { |
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1518 | palkovsky | 130 | nsend_call_3(fb_info.phone, FB_PUTCHAR, key, scr->position_y, scr->position_x); |
1497 | cejka | 131 | } |
132 | |||
133 | screenbuffer_putchar(scr, key); |
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134 | scr->position_x++; |
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135 | } |
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136 | |||
137 | scr->position_y += (scr->position_x >= scr->size_x); |
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138 | |||
139 | if (scr->position_y >= scr->size_y) { |
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140 | scr->position_y = scr->size_y - 1; |
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141 | screenbuffer_clear_line(scr, scr->top_line++); |
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1518 | palkovsky | 142 | if (console == active_console) |
143 | nsend_call(fb_info.phone, FB_SCROLL, 1); |
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1497 | cejka | 144 | } |
145 | |||
146 | scr->position_x = scr->position_x % scr->size_x; |
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147 | |||
1504 | cejka | 148 | if (console == active_console) |
1518 | palkovsky | 149 | send_call_2(fb_info.phone, FB_CURSOR_GOTO, scr->position_y, scr->position_x); |
1504 | cejka | 150 | |
1497 | cejka | 151 | } |
152 | |||
153 | |||
1453 | palkovsky | 154 | /* Handler for keyboard */ |
155 | static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall) |
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1445 | cejka | 156 | { |
1453 | palkovsky | 157 | ipc_callid_t callid; |
1445 | cejka | 158 | ipc_call_t call; |
1453 | palkovsky | 159 | int retval; |
1487 | cejka | 160 | int i, j; |
1489 | palkovsky | 161 | char c,d; |
162 | connection_t *conn; |
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1506 | cejka | 163 | |
1453 | palkovsky | 164 | /* Ignore parameters, the connection is alread opened */ |
165 | while (1) { |
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166 | callid = async_get_call(&call); |
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167 | switch (IPC_GET_METHOD(call)) { |
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168 | case IPC_M_PHONE_HUNGUP: |
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169 | ipc_answer_fast(callid,0,0,0); |
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170 | /* TODO: Handle hangup */ |
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171 | return; |
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172 | case KBD_PUSHCHAR: |
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173 | /* got key from keyboard driver */ |
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1465 | cejka | 174 | |
1453 | palkovsky | 175 | retval = 0; |
1520 | cejka | 176 | c = IPC_GET_ARG1(call); |
1453 | palkovsky | 177 | /* switch to another virtual console */ |
1481 | cejka | 178 | |
1489 | palkovsky | 179 | conn = &connections[active_console]; |
1490 | palkovsky | 180 | // if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) { |
1520 | cejka | 181 | if ((c >= '0') && (c < '0' + CONSOLE_COUNT)) { |
182 | if (c == '0') { |
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1517 | cejka | 183 | /* switch to kernel console*/ |
1523 | cejka | 184 | nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 0); |
1520 | cejka | 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); |
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187 | /* FIXME: restore kernel console */ |
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1517 | cejka | 188 | __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE); |
1520 | cejka | 189 | break; |
1517 | cejka | 190 | |
191 | } else { |
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1520 | cejka | 192 | c = c - '1'; |
193 | if (c == active_console) |
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194 | break; |
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1517 | cejka | 195 | active_console = c; |
1522 | palkovsky | 196 | gcons_change_console(c); |
197 | |||
1517 | cejka | 198 | } |
199 | |||
1489 | palkovsky | 200 | conn = &connections[active_console]; |
201 | |||
1518 | palkovsky | 202 | nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 0); |
1512 | cejka | 203 | |
204 | if (interbuffer) { |
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1516 | cejka | 205 | for (i = 0; i < conn->screenbuffer.size_x; i++) |
206 | for (j = 0; j < conn->screenbuffer.size_y; j++) |
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207 | interbuffer[i + j*conn->screenbuffer.size_x] = *get_field_at(&(conn->screenbuffer),i, j); |
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208 | |||
1517 | cejka | 209 | sync_send_2(fb_info.phone, FB_DRAW_TEXT_DATA, 0, 0, NULL, NULL); |
1512 | cejka | 210 | } else { |
1518 | palkovsky | 211 | nsend_call(fb_info.phone, FB_CLEAR, 0); |
1497 | cejka | 212 | |
1512 | cejka | 213 | |
214 | for (i = 0; i < conn->screenbuffer.size_x; i++) |
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215 | for (j = 0; j < conn->screenbuffer.size_y; j++) { |
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216 | d = get_field_at(&(conn->screenbuffer),i, j)->character; |
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217 | if (d && d != ' ') |
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1518 | palkovsky | 218 | nsend_call_3(fb_info.phone, FB_PUTCHAR, d, j, i); |
1512 | cejka | 219 | } |
1499 | cejka | 220 | |
1512 | cejka | 221 | } |
1518 | palkovsky | 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, \ |
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224 | conn->screenbuffer.style.bg_color); |
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225 | send_call(fb_info.phone, FB_CURSOR_VISIBILITY, 1); |
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1487 | cejka | 226 | |
1453 | palkovsky | 227 | break; |
228 | } |
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1481 | cejka | 229 | |
230 | /* if client is awaiting key, send it */ |
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1489 | palkovsky | 231 | if (conn->keyrequest_counter > 0) { |
232 | conn->keyrequest_counter--; |
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233 | ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0); |
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1481 | cejka | 234 | break; |
235 | } |
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236 | |||
237 | /*FIXME: else store key to its buffer */ |
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1489 | palkovsky | 238 | keybuffer_push(&conn->keybuffer, c); |
1476 | cejka | 239 | |
1453 | palkovsky | 240 | break; |
241 | default: |
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1459 | palkovsky | 242 | retval = ENOENT; |
1453 | palkovsky | 243 | } |
1459 | palkovsky | 244 | ipc_answer_fast(callid, retval, 0, 0); |
1453 | palkovsky | 245 | } |
246 | } |
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247 | |||
248 | /** Default thread for new connections */ |
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1518 | palkovsky | 249 | static void client_connection(ipc_callid_t iid, ipc_call_t *icall) |
1453 | palkovsky | 250 | { |
1445 | cejka | 251 | ipc_callid_t callid; |
1453 | palkovsky | 252 | ipc_call_t call; |
253 | int consnum; |
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1521 | cejka | 254 | ipcarg_t arg1, arg2; |
1453 | palkovsky | 255 | |
256 | if ((consnum = find_free_connection()) == CONSOLE_COUNT) { |
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257 | ipc_answer_fast(iid,ELIMIT,0,0); |
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258 | return; |
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259 | } |
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1497 | cejka | 260 | |
1453 | palkovsky | 261 | connections[consnum].used = 1; |
262 | connections[consnum].client_phone = IPC_GET_ARG3(call); |
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1487 | cejka | 263 | screenbuffer_clear(&(connections[consnum].screenbuffer)); |
1497 | cejka | 264 | |
1453 | palkovsky | 265 | /* Accept the connection */ |
266 | ipc_answer_fast(iid,0,0,0); |
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267 | |||
268 | while (1) { |
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269 | callid = async_get_call(&call); |
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1521 | cejka | 270 | arg1 = arg2 = 0; |
1453 | palkovsky | 271 | switch (IPC_GET_METHOD(call)) { |
272 | case IPC_M_PHONE_HUNGUP: |
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273 | /* TODO */ |
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274 | ipc_answer_fast(callid, 0,0,0); |
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275 | return; |
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276 | case CONSOLE_PUTCHAR: |
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1497 | cejka | 277 | write_char(consnum, IPC_GET_ARG1(call)); |
1453 | palkovsky | 278 | break; |
1476 | cejka | 279 | case CONSOLE_CLEAR: |
1487 | cejka | 280 | /* Send message to fb */ |
281 | if (consnum == active_console) { |
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1518 | palkovsky | 282 | send_call(fb_info.phone, FB_CLEAR, 0); |
1487 | cejka | 283 | } |
284 | |||
285 | screenbuffer_clear(&(connections[consnum].screenbuffer)); |
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286 | |||
1476 | cejka | 287 | break; |
288 | case CONSOLE_GOTO: |
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1487 | cejka | 289 | |
290 | screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call)); |
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291 | |||
1476 | cejka | 292 | break; |
1523 | cejka | 293 | |
1521 | cejka | 294 | case CONSOLE_GETSIZE: |
295 | arg1 = fb_info.cols; |
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296 | arg2 = fb_info.rows; |
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297 | break; |
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1523 | cejka | 298 | case CONSOLE_FLUSH: |
299 | sync_send_2(fb_info.phone, FB_FLUSH, 0, 0, NULL, NULL); |
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300 | break; |
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1453 | palkovsky | 301 | case CONSOLE_GETCHAR: |
1481 | cejka | 302 | if (keybuffer_empty(&(connections[consnum].keybuffer))) { |
303 | /* buffer is empty -> store request */ |
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304 | if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) { |
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305 | fifo_push(connections[consnum].keyrequests, callid); |
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306 | connections[consnum].keyrequest_counter++; |
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307 | } else { |
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308 | /* no key available and too many requests => fail */ |
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309 | ipc_answer_fast(callid, ELIMIT, 0, 0); |
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310 | } |
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311 | continue; |
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1453 | palkovsky | 312 | }; |
1476 | cejka | 313 | keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1); |
1465 | cejka | 314 | |
1453 | palkovsky | 315 | break; |
316 | } |
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1521 | cejka | 317 | ipc_answer_fast(callid, 0, arg1, arg2); |
1453 | palkovsky | 318 | } |
319 | } |
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320 | |||
321 | int main(int argc, char *argv[]) |
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322 | { |
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323 | ipcarg_t phonehash; |
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1451 | cejka | 324 | int kbd_phone, fb_phone; |
1445 | cejka | 325 | ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef; |
1451 | cejka | 326 | int i; |
1490 | palkovsky | 327 | |
328 | async_set_client_connection(client_connection); |
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1445 | cejka | 329 | |
330 | /* Connect to keyboard driver */ |
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331 | |||
1451 | cejka | 332 | while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) { |
1453 | palkovsky | 333 | usleep(10000); |
1445 | cejka | 334 | }; |
335 | |||
1453 | palkovsky | 336 | if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) { |
1445 | cejka | 337 | return -1; |
338 | }; |
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339 | |||
340 | /* Connect to framebuffer driver */ |
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341 | |||
1487 | cejka | 342 | while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) { |
343 | usleep(10000); |
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344 | } |
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1522 | palkovsky | 345 | |
346 | /* Initialize gcons */ |
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347 | gcons_init(fb_info.phone); |
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348 | /* Synchronize, the gcons can have something in queue */ |
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349 | sync_send_2(fb_info.phone, FB_GET_CSIZE, 0, 0, NULL, NULL); |
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350 | |||
1487 | cejka | 351 | |
352 | ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols)); |
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1518 | palkovsky | 353 | nsend_call_2(fb_info.phone, FB_SET_STYLE, DEFAULT_FOREGROUND_COLOR, DEFAULT_BACKGROUND_COLOR); |
1520 | cejka | 354 | nsend_call(fb_info.phone, FB_CLEAR, 0); |
1487 | cejka | 355 | |
356 | /* Init virtual consoles */ |
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1451 | cejka | 357 | for (i = 0; i < CONSOLE_COUNT; i++) { |
358 | connections[i].used = 0; |
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359 | keybuffer_init(&(connections[i].keybuffer)); |
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1481 | cejka | 360 | |
361 | connections[i].keyrequests.head = connections[i].keyrequests.tail = 0; |
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362 | connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED; |
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363 | connections[i].keyrequest_counter = 0; |
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1487 | cejka | 364 | |
365 | if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) { |
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366 | /*FIXME: handle error */ |
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367 | return -1; |
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368 | } |
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1451 | cejka | 369 | } |
1445 | cejka | 370 | |
1512 | cejka | 371 | if ((interbuffer = mmap(NULL, sizeof(keyfield_t) * fb_info.cols * fb_info.rows , PROTO_READ|PROTO_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, 0 ,0 )) != NULL) { |
372 | 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) { |
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373 | munmap(interbuffer, sizeof(keyfield_t) * fb_info.cols * fb_info.rows); |
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374 | interbuffer = NULL; |
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375 | } |
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376 | } |
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1520 | cejka | 377 | |
378 | /* FIXME: save kernel console screen */ |
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1512 | cejka | 379 | |
1506 | cejka | 380 | async_new_connection(phonehash, 0, NULL, keyboard_events); |
381 | |||
1522 | palkovsky | 382 | sync_send_2(fb_info.phone, FB_CURSOR_GOTO, 0, 0, NULL, NULL); |
1520 | cejka | 383 | nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 1); |
1497 | cejka | 384 | |
1518 | palkovsky | 385 | /* Register at NS */ |
1453 | palkovsky | 386 | if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) { |
1445 | cejka | 387 | return -1; |
388 | }; |
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389 | |||
1453 | palkovsky | 390 | async_manager(); |
1451 | cejka | 391 | |
1445 | cejka | 392 | return 0; |
393 | } |
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1520 | cejka | 394 |