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