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