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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> |
1445 | cejka | 42 | |
1497 | cejka | 43 | #define CONSOLE_COUNT 12 |
1481 | cejka | 44 | #define MAX_KEYREQUESTS_BUFFERED 32 |
1451 | cejka | 45 | |
1445 | cejka | 46 | #define NAME "CONSOLE" |
47 | |||
1476 | cejka | 48 | int active_console = 1; |
1453 | palkovsky | 49 | |
1487 | cejka | 50 | struct { |
51 | int phone; /**< Framebuffer phone */ |
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1506 | cejka | 52 | ipcarg_t rows; /**< Framebuffer rows */ |
53 | ipcarg_t cols; /**< Framebuffer columns */ |
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1487 | cejka | 54 | } fb_info; |
55 | |||
1451 | cejka | 56 | typedef struct { |
57 | keybuffer_t keybuffer; |
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1481 | cejka | 58 | FIFO_CREATE_STATIC(keyrequests, ipc_callid_t , MAX_KEYREQUESTS_BUFFERED); |
59 | int keyrequest_counter; |
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1451 | cejka | 60 | int client_phone; |
61 | int used; |
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1487 | cejka | 62 | screenbuffer_t screenbuffer; |
1451 | cejka | 63 | } connection_t; |
64 | |||
1506 | cejka | 65 | |
66 | |||
1451 | cejka | 67 | connection_t connections[CONSOLE_COUNT]; |
68 | |||
69 | static int find_free_connection() |
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70 | { |
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71 | int i = 0; |
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72 | |||
73 | while (i < CONSOLE_COUNT) { |
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74 | if (connections[i].used == 0) |
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75 | return i; |
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76 | ++i; |
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77 | } |
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78 | return CONSOLE_COUNT; |
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79 | } |
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80 | |||
81 | |||
82 | static int find_connection(int client_phone) |
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83 | { |
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84 | int i = 0; |
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85 | |||
86 | while (i < CONSOLE_COUNT) { |
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87 | if (connections[i].client_phone == client_phone) |
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88 | return i; |
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89 | ++i; |
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90 | } |
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91 | return CONSOLE_COUNT; |
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92 | } |
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93 | |||
1497 | cejka | 94 | /** Check key and process special keys. |
95 | * |
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96 | * */ |
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97 | static void write_char(int console, char key) |
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98 | { |
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99 | screenbuffer_t *scr = &(connections[console].screenbuffer); |
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100 | |||
101 | switch (key) { |
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102 | case '\n': |
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103 | scr->position_y += 1; |
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104 | scr->position_x = 0; |
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105 | break; |
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106 | case '\r': |
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107 | break; |
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108 | case '\t': |
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109 | scr->position_x += 8; |
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110 | scr->position_x -= scr->position_x % 8; |
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111 | break; |
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112 | case '\b': |
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113 | if (scr->position_x == 0) |
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114 | break; |
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115 | |||
116 | scr->position_x--; |
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117 | |||
118 | if (console == active_console) { |
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119 | ipc_call_async_3(fb_info.phone, FB_PUTCHAR, ' ', scr->position_y, scr->position_x, NULL, NULL); |
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120 | } |
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121 | |||
122 | screenbuffer_putchar(scr, ' '); |
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123 | |||
124 | break; |
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125 | default: |
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126 | if (console == active_console) { |
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127 | ipc_call_async_3(fb_info.phone, FB_PUTCHAR, key, scr->position_y, scr->position_x, NULL, NULL); |
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128 | } |
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129 | |||
130 | screenbuffer_putchar(scr, key); |
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131 | scr->position_x++; |
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132 | } |
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133 | |||
134 | scr->position_y += (scr->position_x >= scr->size_x); |
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135 | |||
136 | if (scr->position_y >= scr->size_y) { |
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137 | scr->position_y = scr->size_y - 1; |
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138 | screenbuffer_clear_line(scr, scr->top_line++); |
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139 | ipc_call_async(fb_info.phone, FB_SCROLL, 1, NULL, NULL); |
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140 | } |
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141 | |||
142 | scr->position_x = scr->position_x % scr->size_x; |
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143 | |||
1504 | cejka | 144 | if (console == active_console) |
145 | ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, scr->position_y, scr->position_x, NULL, NULL); |
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146 | |||
1497 | cejka | 147 | } |
148 | |||
149 | |||
1453 | palkovsky | 150 | /* Handler for keyboard */ |
151 | static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall) |
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1445 | cejka | 152 | { |
1453 | palkovsky | 153 | ipc_callid_t callid; |
1445 | cejka | 154 | ipc_call_t call; |
1453 | palkovsky | 155 | int retval; |
1487 | cejka | 156 | int i, j; |
1489 | palkovsky | 157 | char c,d; |
158 | connection_t *conn; |
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1506 | cejka | 159 | keyfield_t *interbuffer = NULL; |
1453 | palkovsky | 160 | |
1506 | cejka | 161 | // interbuffer = mmap(,, PROTO_READ|PROTO_WRITE, MAP_ANONYMOUS, , ); |
162 | |||
1453 | palkovsky | 163 | /* Ignore parameters, the connection is alread opened */ |
164 | while (1) { |
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165 | callid = async_get_call(&call); |
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166 | switch (IPC_GET_METHOD(call)) { |
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167 | case IPC_M_PHONE_HUNGUP: |
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168 | ipc_answer_fast(callid,0,0,0); |
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169 | /* TODO: Handle hangup */ |
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170 | return; |
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171 | case KBD_PUSHCHAR: |
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172 | /* got key from keyboard driver */ |
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1465 | cejka | 173 | |
1453 | palkovsky | 174 | retval = 0; |
1476 | cejka | 175 | c = IPC_GET_ARG1(call); |
1453 | palkovsky | 176 | /* switch to another virtual console */ |
1481 | cejka | 177 | |
1489 | palkovsky | 178 | conn = &connections[active_console]; |
1490 | palkovsky | 179 | // if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) { |
180 | if ((c >= '1') && (c < '1' + CONSOLE_COUNT)) { |
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1487 | cejka | 181 | /*FIXME: draw another console content from buffer */ |
1499 | cejka | 182 | if (c - '1' == active_console) |
1497 | cejka | 183 | break; |
1490 | palkovsky | 184 | active_console = c - '1'; |
1489 | palkovsky | 185 | conn = &connections[active_console]; |
186 | |||
187 | ipc_call_async(fb_info.phone, FB_CURSOR_VISIBILITY, 0, NULL, NULL); |
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1487 | cejka | 188 | ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL); |
1497 | cejka | 189 | |
1489 | palkovsky | 190 | for (i = 0; i < conn->screenbuffer.size_x; i++) |
191 | for (j = 0; j < conn->screenbuffer.size_y; j++) { |
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192 | d = get_field_at(&(conn->screenbuffer),i, j)->character; |
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193 | if (d && d != ' ') |
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194 | ipc_call_async_3(fb_info.phone, FB_PUTCHAR, d, j, i, NULL, NULL); |
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195 | } |
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1499 | cejka | 196 | |
1489 | palkovsky | 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); |
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1487 | cejka | 199 | |
1453 | palkovsky | 200 | break; |
201 | } |
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1481 | cejka | 202 | |
203 | /* if client is awaiting key, send it */ |
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1489 | palkovsky | 204 | if (conn->keyrequest_counter > 0) { |
205 | conn->keyrequest_counter--; |
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206 | ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0); |
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1481 | cejka | 207 | break; |
208 | } |
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209 | |||
210 | /*FIXME: else store key to its buffer */ |
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1489 | palkovsky | 211 | keybuffer_push(&conn->keybuffer, c); |
1476 | cejka | 212 | |
1453 | palkovsky | 213 | break; |
214 | default: |
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1459 | palkovsky | 215 | retval = ENOENT; |
1453 | palkovsky | 216 | } |
1459 | palkovsky | 217 | ipc_answer_fast(callid, retval, 0, 0); |
1453 | palkovsky | 218 | } |
219 | } |
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220 | |||
221 | /** Default thread for new connections */ |
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222 | void client_connection(ipc_callid_t iid, ipc_call_t *icall) |
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223 | { |
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1445 | cejka | 224 | ipc_callid_t callid; |
1453 | palkovsky | 225 | ipc_call_t call; |
226 | int consnum; |
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227 | ipcarg_t arg1; |
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228 | |||
229 | if ((consnum = find_free_connection()) == CONSOLE_COUNT) { |
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230 | ipc_answer_fast(iid,ELIMIT,0,0); |
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231 | return; |
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232 | } |
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1497 | cejka | 233 | |
1453 | palkovsky | 234 | connections[consnum].used = 1; |
235 | connections[consnum].client_phone = IPC_GET_ARG3(call); |
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1487 | cejka | 236 | screenbuffer_clear(&(connections[consnum].screenbuffer)); |
1497 | cejka | 237 | |
1453 | palkovsky | 238 | /* Accept the connection */ |
239 | ipc_answer_fast(iid,0,0,0); |
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240 | |||
241 | while (1) { |
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242 | callid = async_get_call(&call); |
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243 | switch (IPC_GET_METHOD(call)) { |
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244 | case IPC_M_PHONE_HUNGUP: |
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245 | /* TODO */ |
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246 | ipc_answer_fast(callid, 0,0,0); |
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247 | return; |
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248 | case CONSOLE_PUTCHAR: |
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1497 | cejka | 249 | write_char(consnum, IPC_GET_ARG1(call)); |
1453 | palkovsky | 250 | break; |
1476 | cejka | 251 | case CONSOLE_CLEAR: |
1487 | cejka | 252 | /* Send message to fb */ |
253 | if (consnum == active_console) { |
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254 | ipc_call_async_2(fb_info.phone, FB_CLEAR, 0, 0, NULL, NULL); |
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255 | } |
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256 | |||
257 | screenbuffer_clear(&(connections[consnum].screenbuffer)); |
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258 | |||
1476 | cejka | 259 | break; |
260 | case CONSOLE_GOTO: |
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1487 | cejka | 261 | |
262 | screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG1(call), IPC_GET_ARG2(call)); |
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263 | |||
1476 | cejka | 264 | break; |
265 | |||
1453 | palkovsky | 266 | case CONSOLE_GETCHAR: |
1481 | cejka | 267 | if (keybuffer_empty(&(connections[consnum].keybuffer))) { |
268 | /* buffer is empty -> store request */ |
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269 | if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) { |
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270 | fifo_push(connections[consnum].keyrequests, callid); |
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271 | connections[consnum].keyrequest_counter++; |
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272 | } else { |
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273 | /* no key available and too many requests => fail */ |
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274 | ipc_answer_fast(callid, ELIMIT, 0, 0); |
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275 | } |
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276 | continue; |
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1453 | palkovsky | 277 | }; |
1476 | cejka | 278 | keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1); |
1465 | cejka | 279 | |
1453 | palkovsky | 280 | break; |
281 | } |
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1465 | cejka | 282 | ipc_answer_fast(callid, 0, arg1, 0); |
1453 | palkovsky | 283 | } |
284 | } |
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285 | |||
286 | int main(int argc, char *argv[]) |
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287 | { |
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288 | ipcarg_t phonehash; |
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1451 | cejka | 289 | int kbd_phone, fb_phone; |
1445 | cejka | 290 | ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef; |
1451 | cejka | 291 | int i; |
1490 | palkovsky | 292 | |
293 | async_set_client_connection(client_connection); |
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1445 | cejka | 294 | |
295 | /* Connect to keyboard driver */ |
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296 | |||
1451 | cejka | 297 | while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) { |
1453 | palkovsky | 298 | usleep(10000); |
1445 | cejka | 299 | }; |
300 | |||
1453 | palkovsky | 301 | if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) { |
1445 | cejka | 302 | return -1; |
303 | }; |
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304 | |||
305 | /* Connect to framebuffer driver */ |
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306 | |||
1487 | cejka | 307 | while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) { |
308 | usleep(10000); |
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309 | } |
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310 | |||
311 | ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols)); |
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1489 | palkovsky | 312 | ipc_call_sync(fb_info.phone, FB_CURSOR_VISIBILITY, 1, NULL); |
1487 | cejka | 313 | |
314 | /* Init virtual consoles */ |
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1451 | cejka | 315 | for (i = 0; i < CONSOLE_COUNT; i++) { |
316 | connections[i].used = 0; |
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317 | keybuffer_init(&(connections[i].keybuffer)); |
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1481 | cejka | 318 | |
319 | connections[i].keyrequests.head = connections[i].keyrequests.tail = 0; |
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320 | connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED; |
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321 | connections[i].keyrequest_counter = 0; |
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1487 | cejka | 322 | |
323 | if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) { |
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324 | /*FIXME: handle error */ |
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325 | return -1; |
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326 | } |
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1451 | cejka | 327 | } |
1445 | cejka | 328 | |
1506 | cejka | 329 | async_new_connection(phonehash, 0, NULL, keyboard_events); |
330 | |||
1504 | cejka | 331 | ipc_call_async_2(fb_info.phone, FB_CURSOR_GOTO, 0, 0, NULL, NULL); |
1497 | cejka | 332 | |
1453 | palkovsky | 333 | if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) { |
1445 | cejka | 334 | return -1; |
335 | }; |
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336 | |||
1453 | palkovsky | 337 | async_manager(); |
1451 | cejka | 338 | |
1445 | cejka | 339 | return 0; |
340 | } |