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  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. /** @addtogroup console
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <libc.h>
  36. #include <fb.h>
  37. #include <ipc/ipc.h>
  38. #include <kbd.h>
  39. #include <kbd/keycode.h>
  40. #include <ipc/fb.h>
  41. #include <ipc/services.h>
  42. #include <errno.h>
  43. #include <key_buffer.h>
  44. #include <ipc/console.h>
  45. #include <unistd.h>
  46. #include <async.h>
  47. #include <libadt/fifo.h>
  48. #include <screenbuffer.h>
  49. #include <sys/mman.h>
  50. #include <stdio.h>
  51. #include <string.h>
  52. #include <sysinfo.h>
  53. #include <event.h>
  54.  
  55. #include "console.h"
  56. #include "gcons.h"
  57.  
  58. #define MAX_KEYREQUESTS_BUFFERED 32
  59.  
  60. #define NAME "console"
  61.  
  62. /** Index of currently used virtual console.
  63.  */
  64. int active_console = 0;
  65. int prev_console = 0;
  66.  
  67. /** Information about framebuffer */
  68. struct {
  69.     int phone;      /**< Framebuffer phone */
  70.     ipcarg_t rows;      /**< Framebuffer rows */
  71.     ipcarg_t cols;      /**< Framebuffer columns */
  72. } fb_info;
  73.  
  74. typedef struct {
  75.     keybuffer_t keybuffer;      /**< Buffer for incoming keys. */
  76.     /** Buffer for unsatisfied request for keys. */
  77.     FIFO_CREATE_STATIC(keyrequests, ipc_callid_t,
  78.         MAX_KEYREQUESTS_BUFFERED); 
  79.     int keyrequest_counter;     /**< Number of requests in buffer. */
  80.     int client_phone;       /**< Phone to connected client. */
  81.     int used;           /**< 1 if this virtual console is
  82.                      * connected to some client.*/
  83.     screenbuffer_t screenbuffer;    /**< Screenbuffer for saving screen
  84.                      * contents and related settings. */
  85. } connection_t;
  86.  
  87. static connection_t connections[CONSOLE_COUNT]; /**< Array of data for virtual
  88.                          * consoles */
  89. static keyfield_t *interbuffer = NULL;      /**< Pointer to memory shared
  90.                          * with framebufer used for
  91.                          * faster virtual console
  92.                          * switching */
  93.  
  94. /** Information on row-span yet unsent to FB driver. */
  95. struct {
  96.     int row;        /**< Row where the span lies. */
  97.     int col;        /**< Leftmost column of the span. */
  98.     int n;          /**< Width of the span. */
  99. } fb_pending;
  100.  
  101. /** Size of cwrite_buf. */
  102. #define CWRITE_BUF_SIZE 256
  103.  
  104. /** Buffer for receiving data via the CONSOLE_WRITE call from the client. */
  105. static char cwrite_buf[CWRITE_BUF_SIZE];
  106.  
  107. static void fb_putchar(wchar_t c, int row, int col);
  108.  
  109.  
  110. /** Find unused virtual console.
  111.  *
  112.  */
  113. static int find_free_connection(void)
  114. {
  115.     int i;
  116.    
  117.     for (i = 0; i < CONSOLE_COUNT; i++) {
  118.         if (!connections[i].used)
  119.             return i;
  120.     }
  121.     return -1;
  122. }
  123.  
  124. static void clrscr(void)
  125. {
  126.     async_msg_0(fb_info.phone, FB_CLEAR);
  127. }
  128.  
  129. static void curs_visibility(bool visible)
  130. {
  131.     async_msg_1(fb_info.phone, FB_CURSOR_VISIBILITY, visible);
  132. }
  133.  
  134. static void curs_hide_sync(void)
  135. {
  136.     ipc_call_sync_1_0(fb_info.phone, FB_CURSOR_VISIBILITY, false);
  137. }
  138.  
  139. static void curs_goto(int row, int col)
  140. {
  141.     async_msg_2(fb_info.phone, FB_CURSOR_GOTO, row, col);
  142. }
  143.  
  144. static void set_style(int style)
  145. {
  146.     async_msg_1(fb_info.phone, FB_SET_STYLE, style);
  147. }
  148.  
  149. static void set_color(int fgcolor, int bgcolor, int flags)
  150. {
  151.     async_msg_3(fb_info.phone, FB_SET_COLOR, fgcolor, bgcolor, flags);
  152. }
  153.  
  154. static void set_rgb_color(int fgcolor, int bgcolor)
  155. {
  156.     async_msg_2(fb_info.phone, FB_SET_RGB_COLOR, fgcolor, bgcolor);
  157. }
  158.  
  159. static void set_attrs(attrs_t *attrs)
  160. {
  161.     switch (attrs->t) {
  162.     case at_style:
  163.         set_style(attrs->a.s.style);
  164.         break;
  165.  
  166.     case at_idx:
  167.         set_color(attrs->a.i.fg_color, attrs->a.i.bg_color,
  168.             attrs->a.i.flags);
  169.         break;
  170.  
  171.     case at_rgb:
  172.         set_rgb_color(attrs->a.r.fg_color, attrs->a.r.bg_color);
  173.         break;
  174.     }
  175. }
  176.  
  177. /** Send an area of screenbuffer to the FB driver. */
  178. static void fb_update_area(connection_t *conn, int x, int y, int w, int h)
  179. {
  180.     int i, j;
  181.     int rc;
  182.     attrs_t *attrs;
  183.     keyfield_t *field;
  184.  
  185.     if (interbuffer) {
  186.         for (j = 0; j < h; j++) {
  187.             for (i = 0; i < w; i++) {
  188.                 interbuffer[i + j * w] =
  189.                     *get_field_at(&conn->screenbuffer,
  190.                     x + i, y + j);
  191.             }
  192.         }
  193.  
  194.         rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
  195.             x, y, w, h);
  196.     } else {
  197.         rc = ENOTSUP;
  198.     }
  199.  
  200.     if (rc != 0) {
  201.         /*
  202.         attrs = &conn->screenbuffer.attrs;
  203.  
  204.         for (j = 0; j < h; j++) {
  205.             for (i = 0; i < w; i++) {
  206.                 field = get_field_at(&conn->screenbuffer,
  207.                     x + i, y + j);
  208.                 if (!attrs_same(*attrs, field->attrs))
  209.                     set_attrs(&field->attrs);
  210.                 attrs = &field->attrs;
  211.  
  212.                 fb_putchar(field->character, y + j, x + i);
  213.             }
  214.         }*/
  215.     }
  216. }
  217.  
  218. /** Flush pending cells to FB. */
  219. static void fb_pending_flush(void)
  220. {
  221.     screenbuffer_t *scr;
  222.  
  223.     scr = &(connections[active_console].screenbuffer);
  224.  
  225.     if (fb_pending.n > 0) {
  226.         fb_update_area(&connections[active_console], fb_pending.col,
  227.             fb_pending.row, fb_pending.n, 1);
  228.         fb_pending.n = 0;
  229.     }
  230. }
  231.  
  232. /** Mark a character cell as changed.
  233.  *
  234.  * This adds the cell to the pending rowspan if possible. Otherwise
  235.  * the old span is flushed first.
  236.  */
  237. static void cell_mark_changed(int row, int col)
  238. {
  239.     if (fb_pending.n != 0) {
  240.         if (row != fb_pending.row ||
  241.             col != fb_pending.col + fb_pending.n) {
  242.             fb_pending_flush();
  243.         }
  244.     }
  245.  
  246.     if (fb_pending.n == 0) {
  247.         fb_pending.row = row;
  248.         fb_pending.col = col;
  249.     }
  250.  
  251.     ++fb_pending.n;
  252. }
  253.  
  254.  
  255. /** Print a character to the active VC with buffering. */
  256. static void fb_putchar(wchar_t c, int row, int col)
  257. {
  258.     async_msg_3(fb_info.phone, FB_PUTCHAR, c, row, col);
  259. }
  260.  
  261. /** Process a character from the client (TTY emulation). */
  262. static void write_char(int console, wchar_t ch)
  263. {
  264.     bool flush_cursor = false;
  265.     screenbuffer_t *scr = &(connections[console].screenbuffer);
  266.  
  267.     switch (ch) {
  268.     case '\n':
  269.         fb_pending_flush();
  270.         flush_cursor = true;
  271.         scr->position_y++;
  272.         scr->position_x = 0;
  273.         break;
  274.     case '\r':
  275.         break;
  276.     case '\t':
  277.         scr->position_x += 8;
  278.         scr->position_x -= scr->position_x % 8;
  279.         break;
  280.     case '\b':
  281.         if (scr->position_x == 0)
  282.             break;
  283.         scr->position_x--;
  284.         if (console == active_console)
  285.             cell_mark_changed(scr->position_y, scr->position_x);
  286.         screenbuffer_putchar(scr, ' ');
  287.         break;
  288.     default:   
  289.         if (console == active_console)
  290.             cell_mark_changed(scr->position_y, scr->position_x);
  291.  
  292.         screenbuffer_putchar(scr, ch);
  293.         scr->position_x++;
  294.     }
  295.  
  296.     if (scr->position_x >= scr->size_x) {
  297.         flush_cursor = true;
  298.         scr->position_y++;
  299.     }
  300.    
  301.     if (scr->position_y >= scr->size_y) {
  302.         fb_pending_flush();
  303.         scr->position_y = scr->size_y - 1;
  304.         screenbuffer_clear_line(scr, scr->top_line);
  305.         scr->top_line = (scr->top_line + 1) % scr->size_y;
  306.         if (console == active_console)
  307.             async_msg_1(fb_info.phone, FB_SCROLL, 1);
  308.     }
  309.  
  310.     scr->position_x = scr->position_x % scr->size_x;
  311.  
  312.     if (console == active_console && flush_cursor)
  313.         curs_goto(scr->position_y, scr->position_x);
  314. }
  315.  
  316. /** Switch to new console */
  317. static void change_console(int newcons)
  318. {
  319.     connection_t *conn;
  320.     int i, j, rc;
  321.     keyfield_t *field;
  322.     attrs_t *attrs;
  323.    
  324.     if (newcons == active_console)
  325.         return;
  326.  
  327.     fb_pending_flush();
  328.  
  329.     if (newcons == KERNEL_CONSOLE) {
  330.         async_serialize_start();
  331.         curs_hide_sync();
  332.         gcons_in_kernel();
  333.         async_serialize_end();
  334.        
  335.         if (__SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE)) {
  336.             prev_console = active_console;
  337.             active_console = KERNEL_CONSOLE;
  338.         } else
  339.             newcons = active_console;
  340.     }
  341.    
  342.     if (newcons != KERNEL_CONSOLE) {
  343.         async_serialize_start();
  344.        
  345.         if (active_console == KERNEL_CONSOLE)
  346.             gcons_redraw_console();
  347.        
  348.         active_console = newcons;
  349.         gcons_change_console(newcons);
  350.         conn = &connections[active_console];
  351.        
  352.         set_attrs(&conn->screenbuffer.attrs);
  353.         curs_visibility(false);
  354.         if (interbuffer) {
  355.             for (j = 0; j < conn->screenbuffer.size_y; j++) {
  356.                 for (i = 0; i < conn->screenbuffer.size_x; i++) {
  357.                     unsigned int size_x;
  358.                    
  359.                     size_x = conn->screenbuffer.size_x;
  360.                     interbuffer[j * size_x + i] =
  361.                         *get_field_at(&conn->screenbuffer, i, j);
  362.                 }
  363.             }
  364.             /* This call can preempt, but we are already at the end */
  365.             rc = async_req_4_0(fb_info.phone, FB_DRAW_TEXT_DATA,
  366.                 0, 0, conn->screenbuffer.size_x,
  367.                 conn->screenbuffer.size_y);
  368.         }
  369.        
  370.         if ((!interbuffer) || (rc != 0)) {
  371.             set_attrs(&conn->screenbuffer.attrs);
  372.             clrscr();
  373.             attrs = &conn->screenbuffer.attrs;
  374.            
  375.             for (j = 0; j < conn->screenbuffer.size_y; j++)
  376.                 for (i = 0; i < conn->screenbuffer.size_x; i++) {
  377.                     field = get_field_at(&conn->screenbuffer, i, j);
  378.                     if (!attrs_same(*attrs, field->attrs))
  379.                         set_attrs(&field->attrs);
  380.                     attrs = &field->attrs;
  381.                     if ((field->character == ' ') &&
  382.                         (attrs_same(field->attrs,
  383.                         conn->screenbuffer.attrs)))
  384.                         continue;
  385.  
  386.                     fb_putchar(field->character, j, i);
  387.                 }
  388.         }
  389.        
  390.         curs_goto(conn->screenbuffer.position_y,
  391.             conn->screenbuffer.position_x);
  392.         curs_visibility(conn->screenbuffer.is_cursor_visible);
  393.        
  394.         async_serialize_end();
  395.     }
  396. }
  397.  
  398. /** Handler for keyboard */
  399. static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
  400. {
  401.     ipc_callid_t callid;
  402.     ipc_call_t call;
  403.     int retval;
  404.     kbd_event_t ev;
  405.     connection_t *conn;
  406.     int newcon;
  407.    
  408.     /* Ignore parameters, the connection is alread opened */
  409.     while (1) {
  410.         callid = async_get_call(&call);
  411.         switch (IPC_GET_METHOD(call)) {
  412.         case IPC_M_PHONE_HUNGUP:
  413.             /* TODO: Handle hangup */
  414.             return;
  415.         case KBD_MS_LEFT:
  416.             newcon = gcons_mouse_btn(IPC_GET_ARG1(call));
  417.             if (newcon != -1)
  418.                 change_console(newcon);
  419.             retval = 0;
  420.             break;
  421.         case KBD_MS_MOVE:
  422.             gcons_mouse_move(IPC_GET_ARG1(call),
  423.                 IPC_GET_ARG2(call));
  424.             retval = 0;
  425.             break;
  426.         case KBD_EVENT:
  427.             /* Got event from keyboard driver. */
  428.             retval = 0;
  429.             ev.type = IPC_GET_ARG1(call);
  430.             ev.key = IPC_GET_ARG2(call);
  431.             ev.mods = IPC_GET_ARG3(call);
  432.             ev.c = IPC_GET_ARG4(call);
  433.            
  434.             /* switch to another virtual console */
  435.            
  436.             conn = &connections[active_console];
  437.  
  438.             if ((ev.key >= KC_F1) && (ev.key < KC_F1 +
  439.                 CONSOLE_COUNT) && ((ev.mods & KM_CTRL) == 0)) {
  440.                 if (ev.key == KC_F12)
  441.                     change_console(KERNEL_CONSOLE);
  442.                 else
  443.                     change_console(ev.key - KC_F1);
  444.                 break;
  445.             }
  446.            
  447.             /* if client is awaiting key, send it */
  448.             if (conn->keyrequest_counter > 0) {    
  449.                 conn->keyrequest_counter--;
  450.                 ipc_answer_4(fifo_pop(conn->keyrequests), EOK,
  451.                     ev.type, ev.key, ev.mods, ev.c);
  452.                 break;
  453.             }
  454.  
  455.             keybuffer_push(&conn->keybuffer, &ev);
  456.             retval = 0;
  457.  
  458.             break;
  459.         default:
  460.             retval = ENOENT;
  461.         }
  462.         ipc_answer_0(callid, retval);
  463.     }
  464. }
  465.  
  466. /** Handle CONSOLE_WRITE call. */
  467. static void cons_write(int consnum, ipc_callid_t rid, ipc_call_t *request)
  468. {
  469.     ipc_callid_t callid;
  470.     size_t size;
  471.     wchar_t ch;
  472.     size_t off;
  473.  
  474.     if (!ipc_data_write_receive(&callid, &size)) {
  475.         ipc_answer_0(callid, EINVAL);
  476.         ipc_answer_0(rid, EINVAL);
  477.     }
  478.  
  479.     if (size > CWRITE_BUF_SIZE)
  480.         size = CWRITE_BUF_SIZE;
  481.  
  482.     (void) ipc_data_write_finalize(callid, cwrite_buf, size);
  483.  
  484.     off = 0;
  485.     while (off < size) {
  486.         ch = str_decode(cwrite_buf, &off, size);
  487.         write_char(consnum, ch);
  488.     }
  489.  
  490.     gcons_notify_char(consnum);
  491.     ipc_answer_1(rid, EOK, size);
  492. }
  493.  
  494. /** Default thread for new connections */
  495. static void client_connection(ipc_callid_t iid, ipc_call_t *icall)
  496. {
  497.     ipc_callid_t callid;
  498.     ipc_call_t call;
  499.     int consnum;
  500.     ipcarg_t arg1, arg2, arg3, arg4;
  501.     connection_t *conn;
  502.     screenbuffer_t *scr;
  503.    
  504.     if ((consnum = find_free_connection()) == -1) {
  505.         ipc_answer_0(iid, ELIMIT);
  506.         return;
  507.     }
  508.     conn = &connections[consnum];
  509.     conn->used = 1;
  510.    
  511.     async_serialize_start();
  512.     gcons_notify_connect(consnum);
  513.     conn->client_phone = IPC_GET_ARG5(*icall);
  514.     screenbuffer_clear(&conn->screenbuffer);
  515.    
  516.     /* Accept the connection */
  517.     ipc_answer_0(iid, EOK);
  518.    
  519.     while (1) {
  520.         async_serialize_end();
  521.         callid = async_get_call(&call);
  522.         async_serialize_start();
  523.        
  524.         arg1 = 0;
  525.         arg2 = 0;
  526.         arg3 = 0;
  527.         arg4 = 0;
  528.  
  529.         switch (IPC_GET_METHOD(call)) {
  530.         case IPC_M_PHONE_HUNGUP:
  531.             gcons_notify_disconnect(consnum);
  532.            
  533.             /* Answer all pending requests */
  534.             while (conn->keyrequest_counter > 0) {
  535.                 conn->keyrequest_counter--;
  536.                 ipc_answer_0(fifo_pop(conn->keyrequests),
  537.                     ENOENT);
  538.                 break;
  539.             }
  540.             conn->used = 0;
  541.             return;
  542.         case CONSOLE_PUTCHAR:
  543.             write_char(consnum, IPC_GET_ARG1(call));
  544.             gcons_notify_char(consnum);
  545.             break;
  546.         case CONSOLE_WRITE:
  547.             cons_write(consnum, callid, &call);
  548.             continue;
  549.         case CONSOLE_CLEAR:
  550.             /* Send message to fb */
  551.             if (consnum == active_console) {
  552.                 async_msg_0(fb_info.phone, FB_CLEAR);
  553.             }
  554.            
  555.             screenbuffer_clear(&conn->screenbuffer);
  556.            
  557.             break;
  558.         case CONSOLE_GOTO:
  559.             screenbuffer_goto(&conn->screenbuffer,
  560.                 IPC_GET_ARG2(call), IPC_GET_ARG1(call));
  561.             if (consnum == active_console)
  562.                 curs_goto(IPC_GET_ARG1(call),
  563.                     IPC_GET_ARG2(call));
  564.             break;
  565.         case CONSOLE_GETSIZE:
  566.             arg1 = fb_info.rows;
  567.             arg2 = fb_info.cols;
  568.             break;
  569.         case CONSOLE_FLUSH:
  570.             fb_pending_flush();
  571.             if (consnum == active_console) {
  572.                 async_req_0_0(fb_info.phone, FB_FLUSH);
  573.  
  574.                 scr = &(connections[consnum].screenbuffer);
  575.                 curs_goto(scr->position_y, scr->position_x);
  576.             }
  577.             break;
  578.         case CONSOLE_SET_STYLE:
  579.             fb_pending_flush();
  580.             arg1 = IPC_GET_ARG1(call);
  581.             screenbuffer_set_style(&conn->screenbuffer, arg1);
  582.             if (consnum == active_console)
  583.                 set_style(arg1);
  584.             break;
  585.         case CONSOLE_SET_COLOR:
  586.             fb_pending_flush();
  587.             arg1 = IPC_GET_ARG1(call);
  588.             arg2 = IPC_GET_ARG2(call);
  589.             arg3 = IPC_GET_ARG3(call);
  590.             screenbuffer_set_color(&conn->screenbuffer, arg1,
  591.                 arg2, arg3);
  592.             if (consnum == active_console)
  593.                 set_color(arg1, arg2, arg3);
  594.             break;
  595.         case CONSOLE_SET_RGB_COLOR:
  596.             fb_pending_flush();
  597.             arg1 = IPC_GET_ARG1(call);
  598.             arg2 = IPC_GET_ARG2(call);
  599.             screenbuffer_set_rgb_color(&conn->screenbuffer, arg1,
  600.                 arg2);
  601.             if (consnum == active_console)
  602.                 set_rgb_color(arg1, arg2);
  603.             break;
  604.         case CONSOLE_CURSOR_VISIBILITY:
  605.             fb_pending_flush();
  606.             arg1 = IPC_GET_ARG1(call);
  607.             conn->screenbuffer.is_cursor_visible = arg1;
  608.             if (consnum == active_console)
  609.                 curs_visibility(arg1);
  610.             break;
  611.         case CONSOLE_GETKEY:
  612.             if (keybuffer_empty(&conn->keybuffer)) {
  613.                 /* buffer is empty -> store request */
  614.                 if (conn->keyrequest_counter <
  615.                     MAX_KEYREQUESTS_BUFFERED) {
  616.                     fifo_push(conn->keyrequests, callid);
  617.                     conn->keyrequest_counter++;
  618.                 } else {
  619.                     /*
  620.                      * No key available and too many
  621.                      * requests => fail.
  622.                     */
  623.                     ipc_answer_0(callid, ELIMIT);
  624.                 }
  625.                 continue;
  626.             }
  627.             kbd_event_t ev;
  628.             keybuffer_pop(&conn->keybuffer, &ev);
  629.             arg1 = ev.type;
  630.             arg2 = ev.key;
  631.             arg3 = ev.mods;
  632.             arg4 = ev.c;
  633.             break;
  634.         case CONSOLE_KCON_ENABLE:
  635.             change_console(KERNEL_CONSOLE);
  636.             break;
  637.         }
  638.         ipc_answer_4(callid, EOK, arg1, arg2, arg3, arg4);
  639.     }
  640. }
  641.  
  642. static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
  643. {
  644.     change_console(prev_console);
  645. }
  646.  
  647. int main(int argc, char *argv[])
  648. {
  649.     printf(NAME ": HelenOS Console service\n");
  650.    
  651.     ipcarg_t phonehash;
  652.     int kbd_phone;
  653.     size_t ib_size;
  654.     int i;
  655.    
  656.     async_set_client_connection(client_connection);
  657.    
  658.     /* Connect to keyboard driver */
  659.     kbd_phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_KEYBOARD, 0, 0);
  660.     if (kbd_phone < 0) {
  661.         printf(NAME ": Failed to connect to keyboard service\n");
  662.         return -1;
  663.     }
  664.    
  665.     if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, 0, &phonehash) != 0) {
  666.         printf(NAME ": Failed to create callback from keyboard service\n");
  667.         return -1;
  668.     }
  669.    
  670.     async_new_connection(phonehash, 0, NULL, keyboard_events);
  671.    
  672.     /* Connect to framebuffer driver */
  673.     fb_info.phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_VIDEO, 0, 0);
  674.     if (fb_info.phone < 0) {
  675.         printf(NAME ": Failed to connect to video service\n");
  676.         return -1;
  677.     }
  678.    
  679.     /* Disable kernel output to the console */
  680.     __SYSCALL0(SYS_DEBUG_DISABLE_CONSOLE);
  681.    
  682.     /* Initialize gcons */
  683.     gcons_init(fb_info.phone);
  684.     /* Synchronize, the gcons can have something in queue */
  685.     async_req_0_0(fb_info.phone, FB_FLUSH);
  686.    
  687.     async_req_0_2(fb_info.phone, FB_GET_CSIZE, &fb_info.rows,
  688.         &fb_info.cols);
  689.     set_rgb_color(DEFAULT_FOREGROUND, DEFAULT_BACKGROUND);
  690.     clrscr();
  691.    
  692.     /* Init virtual consoles */
  693.     for (i = 0; i < CONSOLE_COUNT; i++) {
  694.         connections[i].used = 0;
  695.         keybuffer_init(&connections[i].keybuffer);
  696.        
  697.         connections[i].keyrequests.head = 0;
  698.         connections[i].keyrequests.tail = 0;
  699.         connections[i].keyrequests.items = MAX_KEYREQUESTS_BUFFERED;
  700.         connections[i].keyrequest_counter = 0;
  701.        
  702.         if (screenbuffer_init(&connections[i].screenbuffer,
  703.             fb_info.cols, fb_info.rows) == NULL) {
  704.             /* FIXME: handle error */
  705.             return -1;
  706.         }
  707.     }
  708.     connections[KERNEL_CONSOLE].used = 1;
  709.  
  710.     /* Set up shared memory buffer. */
  711.     ib_size = sizeof(keyfield_t) * fb_info.cols * fb_info.rows;
  712.     interbuffer = as_get_mappable_page(ib_size);
  713.  
  714.     fb_pending.n = 0;
  715.  
  716.     if (as_area_create(interbuffer, ib_size, AS_AREA_READ |
  717.         AS_AREA_WRITE | AS_AREA_CACHEABLE) != interbuffer) {
  718.         interbuffer = NULL;
  719.     }
  720.  
  721.     if (interbuffer) {
  722.         if (ipc_share_out_start(fb_info.phone, interbuffer,
  723.             AS_AREA_READ) != EOK) {
  724.             as_area_destroy(interbuffer);
  725.             interbuffer = NULL;
  726.         }
  727.     }
  728.    
  729.     curs_goto(0, 0);
  730.     curs_visibility(
  731.         connections[active_console].screenbuffer.is_cursor_visible);
  732.    
  733.     /* Register at NS */
  734.     if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, 0, &phonehash) != 0)
  735.         return -1;
  736.    
  737.     /* Receive kernel notifications */
  738.     if (event_subscribe(EVENT_KCONSOLE, 0) != EOK)
  739.         printf(NAME ": Error registering kconsole notifications\n");
  740.        
  741.     async_set_interrupt_received(interrupt_received);
  742.    
  743.     // FIXME: avoid connectiong to itself, keep using klog
  744.     // printf(NAME ": Accepting connections\n");
  745.     async_manager();
  746.    
  747.     return 0;
  748. }
  749.  
  750. /** @}
  751.  */
  752.