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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 | |||
1526 | cejka | 50 | /** Index of currently used virtual console. |
51 | */ |
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1512 | cejka | 52 | int active_console = 0; |
1453 | palkovsky | 53 | |
1526 | cejka | 54 | /** Information about framebuffer |
55 | */ |
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1487 | cejka | 56 | struct { |
57 | int phone; /**< Framebuffer phone */ |
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1506 | cejka | 58 | ipcarg_t rows; /**< Framebuffer rows */ |
59 | ipcarg_t cols; /**< Framebuffer columns */ |
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1487 | cejka | 60 | } fb_info; |
61 | |||
1526 | cejka | 62 | |
1451 | cejka | 63 | typedef struct { |
1526 | cejka | 64 | keybuffer_t keybuffer; /**< Buffer for incoming keys. */ |
65 | FIFO_CREATE_STATIC(keyrequests, ipc_callid_t , MAX_KEYREQUESTS_BUFFERED); /**< Buffer for unsatisfied request for keys. */ |
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66 | int keyrequest_counter; /**< Number of requests in buffer. */ |
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67 | int client_phone; /**< Phone to connected client. */ |
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68 | int used; /**< 1 if this virtual console is connected to some client.*/ |
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69 | screenbuffer_t screenbuffer; /**< Screenbuffer for saving screen contents and related settings. */ |
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1451 | cejka | 70 | } connection_t; |
71 | |||
1552 | palkovsky | 72 | static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual consoles */ |
73 | static keyfield_t *interbuffer = NULL; /**< Pointer to memory shared with framebufer used for faster virt. console switching */ |
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1506 | cejka | 74 | |
1552 | palkovsky | 75 | static int kernel_pixmap = -1; /**< Number of fb pixmap, where kernel console is stored */ |
1506 | cejka | 76 | |
1552 | palkovsky | 77 | |
1526 | cejka | 78 | /** Find unused virtual console. |
79 | * |
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80 | */ |
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1574 | palkovsky | 81 | static int find_free_connection(void) |
1451 | cejka | 82 | { |
83 | int i = 0; |
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84 | |||
1574 | palkovsky | 85 | for (i=0; i < CONSOLE_COUNT; i++) { |
86 | if (!connections[i].used) |
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1451 | cejka | 87 | return i; |
88 | } |
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1574 | palkovsky | 89 | return -1; |
1451 | cejka | 90 | } |
91 | |||
1552 | palkovsky | 92 | static void clrscr(void) |
93 | { |
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94 | nsend_call(fb_info.phone, FB_CLEAR, 0); |
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95 | } |
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96 | |||
97 | static void curs_visibility(int v) |
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98 | { |
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99 | send_call(fb_info.phone, FB_CURSOR_VISIBILITY, v); |
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100 | } |
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101 | |||
102 | static void curs_goto(int row, int col) |
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103 | { |
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104 | nsend_call_2(fb_info.phone, FB_CURSOR_GOTO, row, col); |
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105 | |||
106 | } |
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107 | |||
108 | static void set_style(style_t *style) |
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109 | { |
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110 | nsend_call_2(fb_info.phone, FB_SET_STYLE, style->fg_color, style->bg_color); |
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111 | } |
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112 | |||
113 | static void set_style_col(int fgcolor, int bgcolor) |
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114 | { |
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115 | nsend_call_2(fb_info.phone, FB_SET_STYLE, fgcolor, bgcolor); |
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116 | } |
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117 | |||
118 | static void prtchr(char c, int row, int col) |
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119 | { |
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120 | nsend_call_3(fb_info.phone, FB_PUTCHAR, c, row, col); |
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121 | |||
122 | } |
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123 | |||
1497 | cejka | 124 | /** Check key and process special keys. |
125 | * |
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126 | * */ |
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127 | static void write_char(int console, char key) |
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128 | { |
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129 | screenbuffer_t *scr = &(connections[console].screenbuffer); |
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130 | |||
131 | switch (key) { |
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132 | case '\n': |
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133 | scr->position_y += 1; |
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134 | scr->position_x = 0; |
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135 | break; |
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136 | case '\r': |
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137 | break; |
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138 | case '\t': |
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139 | scr->position_x += 8; |
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140 | scr->position_x -= scr->position_x % 8; |
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141 | break; |
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142 | case '\b': |
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143 | if (scr->position_x == 0) |
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144 | break; |
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145 | |||
146 | scr->position_x--; |
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147 | |||
1552 | palkovsky | 148 | if (console == active_console) |
149 | prtchr(' ', scr->position_y, scr->position_x); |
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1497 | cejka | 150 | |
151 | screenbuffer_putchar(scr, ' '); |
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152 | |||
153 | break; |
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154 | default: |
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1552 | palkovsky | 155 | if (console == active_console) |
156 | prtchr(key, scr->position_y, scr->position_x); |
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1497 | cejka | 157 | |
158 | screenbuffer_putchar(scr, key); |
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159 | scr->position_x++; |
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160 | } |
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161 | |||
162 | scr->position_y += (scr->position_x >= scr->size_x); |
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163 | |||
164 | if (scr->position_y >= scr->size_y) { |
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165 | scr->position_y = scr->size_y - 1; |
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166 | screenbuffer_clear_line(scr, scr->top_line++); |
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1518 | palkovsky | 167 | if (console == active_console) |
168 | nsend_call(fb_info.phone, FB_SCROLL, 1); |
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1497 | cejka | 169 | } |
170 | |||
171 | scr->position_x = scr->position_x % scr->size_x; |
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172 | |||
1552 | palkovsky | 173 | if (console == active_console) |
174 | curs_goto(scr->position_y, scr->position_x); |
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1504 | cejka | 175 | |
1497 | cejka | 176 | } |
177 | |||
1552 | palkovsky | 178 | /** Save current screen to pixmap, draw old pixmap |
179 | * |
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180 | * @param oldpixmap Old pixmap |
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181 | * @return ID of pixmap of current screen |
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182 | */ |
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183 | static int switch_screens(int oldpixmap) |
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184 | { |
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185 | int newpmap; |
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186 | |||
187 | /* Save screen */ |
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188 | newpmap = sync_send(fb_info.phone, FB_VP2PIXMAP, 0, NULL); |
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189 | if (newpmap < 0) |
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190 | return -1; |
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1497 | cejka | 191 | |
1552 | palkovsky | 192 | if (oldpixmap != -1) { |
193 | /* Show old screen */ |
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194 | nsend_call_2(fb_info.phone, FB_VP_DRAW_PIXMAP, 0, oldpixmap); |
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195 | /* Drop old pixmap */ |
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196 | nsend_call(fb_info.phone, FB_DROP_PIXMAP, oldpixmap); |
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197 | } |
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198 | |||
199 | return newpmap; |
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200 | } |
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201 | |||
202 | /** Switch to new console */ |
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203 | static void change_console(int newcons) |
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204 | { |
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205 | connection_t *conn; |
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206 | static int console_pixmap = -1; |
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207 | int i, j; |
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208 | char c; |
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209 | |||
210 | if (newcons == active_console) |
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211 | return; |
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212 | |||
1555 | palkovsky | 213 | if (newcons == KERNEL_CONSOLE) { |
214 | if (active_console == KERNEL_CONSOLE) |
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1552 | palkovsky | 215 | return; |
1555 | palkovsky | 216 | active_console = KERNEL_CONSOLE; |
1552 | palkovsky | 217 | curs_visibility(0); |
218 | |||
219 | if (kernel_pixmap == -1) { |
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220 | /* store/restore unsupported */ |
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221 | set_style_col(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND); |
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222 | clrscr(); |
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223 | } else { |
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224 | gcons_in_kernel(); |
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225 | console_pixmap = switch_screens(kernel_pixmap); |
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226 | kernel_pixmap = -1; |
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227 | } |
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228 | |||
229 | __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE); |
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230 | return; |
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231 | } |
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232 | |||
233 | if (console_pixmap != -1) { |
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234 | kernel_pixmap = switch_screens(console_pixmap); |
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235 | console_pixmap = -1; |
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236 | } |
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237 | |||
238 | active_console = newcons; |
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239 | gcons_change_console(newcons); |
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240 | conn = &connections[active_console]; |
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241 | |||
1563 | palkovsky | 242 | set_style(&conn->screenbuffer.style); |
243 | curs_goto(conn->screenbuffer.position_y, conn->screenbuffer.position_x); |
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1552 | palkovsky | 244 | if (interbuffer) { |
245 | for (i = 0; i < conn->screenbuffer.size_x; i++) |
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246 | for (j = 0; j < conn->screenbuffer.size_y; j++) |
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247 | interbuffer[i + j*conn->screenbuffer.size_x] = *get_field_at(&(conn->screenbuffer),i, j); |
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1563 | palkovsky | 248 | /* This call can preempt, but we are already at the end */ |
1552 | palkovsky | 249 | sync_send_2(fb_info.phone, FB_DRAW_TEXT_DATA, 0, 0, NULL, NULL); |
1567 | palkovsky | 250 | curs_visibility(1); |
1552 | palkovsky | 251 | } else { |
1563 | palkovsky | 252 | curs_visibility(0); |
1552 | palkovsky | 253 | clrscr(); |
254 | |||
255 | for (i = 0; i < conn->screenbuffer.size_x; i++) |
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256 | for (j = 0; j < conn->screenbuffer.size_y; j++) { |
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257 | c = get_field_at(&(conn->screenbuffer),i, j)->character; |
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258 | if (c && c != ' ') |
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259 | prtchr(c, j, i); |
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260 | } |
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261 | |||
1563 | palkovsky | 262 | curs_visibility(1); |
1552 | palkovsky | 263 | } |
264 | } |
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265 | |||
1526 | cejka | 266 | /** Handler for keyboard */ |
1453 | palkovsky | 267 | static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall) |
1445 | cejka | 268 | { |
1453 | palkovsky | 269 | ipc_callid_t callid; |
1445 | cejka | 270 | ipc_call_t call; |
1453 | palkovsky | 271 | int retval; |
1560 | vana | 272 | int c; |
1489 | palkovsky | 273 | connection_t *conn; |
1506 | cejka | 274 | |
1453 | palkovsky | 275 | /* Ignore parameters, the connection is alread opened */ |
276 | while (1) { |
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277 | callid = async_get_call(&call); |
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278 | switch (IPC_GET_METHOD(call)) { |
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279 | case IPC_M_PHONE_HUNGUP: |
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280 | ipc_answer_fast(callid,0,0,0); |
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281 | /* TODO: Handle hangup */ |
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282 | return; |
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283 | case KBD_PUSHCHAR: |
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284 | /* got key from keyboard driver */ |
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1465 | cejka | 285 | |
1453 | palkovsky | 286 | retval = 0; |
1520 | cejka | 287 | c = IPC_GET_ARG1(call); |
1453 | palkovsky | 288 | /* switch to another virtual console */ |
1481 | cejka | 289 | |
1489 | palkovsky | 290 | conn = &connections[active_console]; |
1490 | palkovsky | 291 | // if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) { |
1560 | vana | 292 | if ((c >= 0x101) && (c < 0x101 + CONSOLE_COUNT)) { |
293 | if (c == 0x112) |
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1555 | palkovsky | 294 | change_console(KERNEL_CONSOLE); |
1552 | palkovsky | 295 | else |
1560 | vana | 296 | change_console(c - 0x101); |
1453 | palkovsky | 297 | break; |
298 | } |
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1481 | cejka | 299 | |
300 | /* if client is awaiting key, send it */ |
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1489 | palkovsky | 301 | if (conn->keyrequest_counter > 0) { |
302 | conn->keyrequest_counter--; |
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303 | ipc_answer_fast(fifo_pop(conn->keyrequests), 0, c, 0); |
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1481 | cejka | 304 | break; |
305 | } |
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306 | |||
307 | /*FIXME: else store key to its buffer */ |
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1489 | palkovsky | 308 | keybuffer_push(&conn->keybuffer, c); |
1476 | cejka | 309 | |
1453 | palkovsky | 310 | break; |
311 | default: |
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1459 | palkovsky | 312 | retval = ENOENT; |
1453 | palkovsky | 313 | } |
1459 | palkovsky | 314 | ipc_answer_fast(callid, retval, 0, 0); |
1453 | palkovsky | 315 | } |
316 | } |
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317 | |||
318 | /** Default thread for new connections */ |
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1518 | palkovsky | 319 | static void client_connection(ipc_callid_t iid, ipc_call_t *icall) |
1453 | palkovsky | 320 | { |
1445 | cejka | 321 | ipc_callid_t callid; |
1453 | palkovsky | 322 | ipc_call_t call; |
323 | int consnum; |
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1521 | cejka | 324 | ipcarg_t arg1, arg2; |
1453 | palkovsky | 325 | |
1574 | palkovsky | 326 | if ((consnum = find_free_connection()) == -1) { |
1453 | palkovsky | 327 | ipc_answer_fast(iid,ELIMIT,0,0); |
328 | return; |
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329 | } |
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1555 | palkovsky | 330 | |
331 | gcons_notify_connect(consnum); |
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1453 | palkovsky | 332 | connections[consnum].used = 1; |
333 | connections[consnum].client_phone = IPC_GET_ARG3(call); |
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1487 | cejka | 334 | screenbuffer_clear(&(connections[consnum].screenbuffer)); |
1497 | cejka | 335 | |
1453 | palkovsky | 336 | /* Accept the connection */ |
337 | ipc_answer_fast(iid,0,0,0); |
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338 | |||
339 | while (1) { |
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340 | callid = async_get_call(&call); |
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1521 | cejka | 341 | arg1 = arg2 = 0; |
1453 | palkovsky | 342 | switch (IPC_GET_METHOD(call)) { |
343 | case IPC_M_PHONE_HUNGUP: |
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344 | /* TODO */ |
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345 | ipc_answer_fast(callid, 0,0,0); |
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346 | return; |
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347 | case CONSOLE_PUTCHAR: |
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1497 | cejka | 348 | write_char(consnum, IPC_GET_ARG1(call)); |
1528 | palkovsky | 349 | gcons_notify_char(consnum); |
1453 | palkovsky | 350 | break; |
1476 | cejka | 351 | case CONSOLE_CLEAR: |
1487 | cejka | 352 | /* Send message to fb */ |
353 | if (consnum == active_console) { |
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1518 | palkovsky | 354 | send_call(fb_info.phone, FB_CLEAR, 0); |
1487 | cejka | 355 | } |
356 | |||
357 | screenbuffer_clear(&(connections[consnum].screenbuffer)); |
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358 | |||
1476 | cejka | 359 | break; |
360 | case CONSOLE_GOTO: |
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1487 | cejka | 361 | |
1528 | palkovsky | 362 | screenbuffer_goto(&(connections[consnum].screenbuffer), IPC_GET_ARG2(call), IPC_GET_ARG1(call)); |
1567 | palkovsky | 363 | if (consnum == active_console) |
364 | curs_goto(IPC_GET_ARG1(call),IPC_GET_ARG2(call)); |
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1487 | cejka | 365 | |
1476 | cejka | 366 | break; |
1523 | cejka | 367 | |
1521 | cejka | 368 | case CONSOLE_GETSIZE: |
1528 | palkovsky | 369 | arg1 = fb_info.rows; |
370 | arg2 = fb_info.cols; |
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1521 | cejka | 371 | break; |
1523 | cejka | 372 | case CONSOLE_FLUSH: |
373 | sync_send_2(fb_info.phone, FB_FLUSH, 0, 0, NULL, NULL); |
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374 | break; |
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1525 | cejka | 375 | case CONSOLE_SET_STYLE: |
376 | |||
377 | arg1 = IPC_GET_ARG1(call); |
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378 | arg2 = IPC_GET_ARG2(call); |
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1533 | palkovsky | 379 | screenbuffer_set_style(&(connections[consnum].screenbuffer),arg1, arg2); |
1525 | cejka | 380 | if (consnum == active_console) |
1552 | palkovsky | 381 | set_style_col(arg1, arg2); |
1525 | cejka | 382 | |
383 | break; |
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1453 | palkovsky | 384 | case CONSOLE_GETCHAR: |
1481 | cejka | 385 | if (keybuffer_empty(&(connections[consnum].keybuffer))) { |
386 | /* buffer is empty -> store request */ |
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387 | if (connections[consnum].keyrequest_counter < MAX_KEYREQUESTS_BUFFERED) { |
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388 | fifo_push(connections[consnum].keyrequests, callid); |
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389 | connections[consnum].keyrequest_counter++; |
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390 | } else { |
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391 | /* no key available and too many requests => fail */ |
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392 | ipc_answer_fast(callid, ELIMIT, 0, 0); |
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393 | } |
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394 | continue; |
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1453 | palkovsky | 395 | }; |
1476 | cejka | 396 | keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1); |
1465 | cejka | 397 | |
1453 | palkovsky | 398 | break; |
399 | } |
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1521 | cejka | 400 | ipc_answer_fast(callid, 0, arg1, arg2); |
1453 | palkovsky | 401 | } |
402 | } |
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403 | |||
404 | int main(int argc, char *argv[]) |
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405 | { |
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406 | ipcarg_t phonehash; |
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1451 | cejka | 407 | int kbd_phone, fb_phone; |
1445 | cejka | 408 | ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef; |
1451 | cejka | 409 | int i; |
1490 | palkovsky | 410 | |
411 | async_set_client_connection(client_connection); |
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1445 | cejka | 412 | |
413 | /* Connect to keyboard driver */ |
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414 | |||
1451 | cejka | 415 | while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) { |
1453 | palkovsky | 416 | usleep(10000); |
1445 | cejka | 417 | }; |
418 | |||
1453 | palkovsky | 419 | if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) { |
1445 | cejka | 420 | return -1; |
421 | }; |
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422 | |||
423 | /* Connect to framebuffer driver */ |
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424 | |||
1487 | cejka | 425 | while ((fb_info.phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) { |
426 | usleep(10000); |
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427 | } |
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1552 | palkovsky | 428 | |
429 | /* Save old kernel screen */ |
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430 | kernel_pixmap = switch_screens(-1); |
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1522 | palkovsky | 431 | |
432 | /* Initialize gcons */ |
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433 | gcons_init(fb_info.phone); |
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434 | /* Synchronize, the gcons can have something in queue */ |
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1574 | palkovsky | 435 | sync_send(fb_info.phone, FB_FLUSH, 0, NULL); |
1522 | palkovsky | 436 | |
1487 | cejka | 437 | |
438 | ipc_call_sync_2(fb_info.phone, FB_GET_CSIZE, 0, 0, &(fb_info.rows), &(fb_info.cols)); |
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1552 | palkovsky | 439 | set_style_col(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND); |
440 | clrscr(); |
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1487 | cejka | 441 | |
442 | /* Init virtual consoles */ |
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1451 | cejka | 443 | for (i = 0; i < CONSOLE_COUNT; i++) { |
444 | connections[i].used = 0; |
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445 | keybuffer_init(&(connections[i].keybuffer)); |
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1481 | cejka | 446 | |
447 | connections[i].keyrequests.head = connections[i].keyrequests.tail = 0; |
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448 | connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED; |
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449 | connections[i].keyrequest_counter = 0; |
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1487 | cejka | 450 | |
451 | if (screenbuffer_init(&(connections[i].screenbuffer), fb_info.cols, fb_info.rows ) == NULL) { |
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452 | /*FIXME: handle error */ |
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453 | return -1; |
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454 | } |
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1451 | cejka | 455 | } |
1574 | palkovsky | 456 | connections[KERNEL_CONSOLE].used = 1; |
1445 | cejka | 457 | |
1512 | cejka | 458 | if ((interbuffer = mmap(NULL, sizeof(keyfield_t) * fb_info.cols * fb_info.rows , PROTO_READ|PROTO_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, 0 ,0 )) != NULL) { |
1547 | palkovsky | 459 | if (ipc_call_sync_3(fb_info.phone, IPC_M_AS_AREA_SEND, (ipcarg_t)interbuffer, 0, AS_AREA_READ, NULL, NULL, NULL) != 0) { |
1512 | cejka | 460 | munmap(interbuffer, sizeof(keyfield_t) * fb_info.cols * fb_info.rows); |
461 | interbuffer = NULL; |
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462 | } |
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463 | } |
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1520 | cejka | 464 | |
1506 | cejka | 465 | async_new_connection(phonehash, 0, NULL, keyboard_events); |
466 | |||
1522 | palkovsky | 467 | sync_send_2(fb_info.phone, FB_CURSOR_GOTO, 0, 0, NULL, NULL); |
1520 | cejka | 468 | nsend_call(fb_info.phone, FB_CURSOR_VISIBILITY, 1); |
1497 | cejka | 469 | |
1518 | palkovsky | 470 | /* Register at NS */ |
1453 | palkovsky | 471 | if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) { |
1445 | cejka | 472 | return -1; |
473 | }; |
||
474 | |||
1453 | palkovsky | 475 | async_manager(); |
1451 | cejka | 476 | |
1445 | cejka | 477 | return 0; |
478 | } |
||
1520 | cejka | 479 |