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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.  
  30. #include <kbd.h>
  31. #include <fb.h>
  32. #include <ipc/ipc.h>
  33. #include <ipc/fb.h>
  34. #include <ipc/services.h>
  35. #include <errno.h>
  36. #include <key_buffer.h>
  37. #include <console.h>
  38. #include <unistd.h>
  39. #include <async.h>
  40.  
  41. //#define CONSOLE_COUNT VFB_CONNECTIONS
  42. #define CONSOLE_COUNT 6
  43.  
  44. #define NAME "CONSOLE"
  45.  
  46. int active_client = 0;
  47.  
  48.  
  49. typedef struct {
  50.     keybuffer_t keybuffer;
  51.     int client_phone;
  52.     int vfb_number; /* Not used */
  53.     int vfb_phone;
  54.     int used;
  55. } connection_t;
  56.  
  57. connection_t connections[CONSOLE_COUNT];
  58.  
  59. static int find_free_connection()
  60. {
  61.     int i = 0;
  62.    
  63.     while (i < CONSOLE_COUNT) {
  64.         if (connections[i].used == 0)
  65.             return i;
  66.         ++i;
  67.     }
  68.     return CONSOLE_COUNT;
  69. }
  70.  
  71.  
  72. static int find_connection(int client_phone)
  73. {
  74.     int i = 0;
  75.    
  76.     while (i < CONSOLE_COUNT) {
  77.         if (connections[i].client_phone == client_phone)
  78.             return i;
  79.         ++i;
  80.     }
  81.     return  CONSOLE_COUNT;
  82. }
  83.  
  84. /* Handler for keyboard */
  85. static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
  86. {
  87.     ipc_callid_t callid;
  88.     ipc_call_t call;
  89.     int retval;
  90.     int i;
  91.  
  92.     /* Ignore parameters, the connection is alread opened */
  93.     while (1) {
  94.         callid = async_get_call(&call);
  95.         switch (IPC_GET_METHOD(call)) {
  96.         case IPC_M_PHONE_HUNGUP:
  97.             ipc_answer_fast(callid,0,0,0);
  98.             /* TODO: Handle hangup */
  99.             return;
  100.         case KBD_PUSHCHAR:
  101.             /* got key from keyboard driver */
  102.            
  103.             /* find active console */
  104.            
  105.             /* if client is awaiting key, send it */
  106.            
  107.             /*FIXME: else store key to its buffer */
  108.             retval = 0;
  109.             i = IPC_GET_ARG1(call) & 0xff;
  110.             /* switch to another virtual console */
  111.             if ((i >= KBD_KEY_F1) && (i < KBD_KEY_F1 + CONSOLE_COUNT)) {
  112.                 active_client = i - KBD_KEY_F1;
  113.                 break;
  114.             }
  115.             keybuffer_push(&(connections[active_client].keybuffer), i);
  116.             /* Send it to first FB, DEBUG */
  117. //          ipc_call_async_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
  118. //          ipc_call_sync_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
  119.  
  120.             break;
  121.         default:
  122.             retval = ENOENT;
  123.         }      
  124.         ipc_answer_fast(callid, retval, 0, 0);
  125.     }
  126. }
  127.  
  128. /** Default thread for new connections */
  129. void client_connection(ipc_callid_t iid, ipc_call_t *icall)
  130. {
  131.     ipc_callid_t callid;
  132.     ipc_call_t call;
  133.     int consnum;
  134.     ipcarg_t arg1;
  135.  
  136.     if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
  137.         ipc_answer_fast(iid,ELIMIT,0,0);
  138.         return;
  139.     }
  140.     connections[consnum].used = 1;
  141.     connections[consnum].client_phone = IPC_GET_ARG3(call);
  142.  
  143.     /* Accept the connection */
  144.     ipc_answer_fast(iid,0,0,0);
  145.    
  146.     while (1) {
  147.         callid = async_get_call(&call);
  148.         switch (IPC_GET_METHOD(call)) {
  149.         case IPC_M_PHONE_HUNGUP:
  150.             /* TODO */
  151.             ipc_answer_fast(callid, 0,0,0);
  152.             return;
  153.         case CONSOLE_PUTCHAR:
  154.             /* Send message to fb */
  155.             ipc_call_async_2(connections[consnum].vfb_phone, FB_PUTCHAR, IPC_GET_ARG1(call), IPC_GET_ARG2(call), NULL, NULL);
  156.             break;
  157.         case CONSOLE_GETCHAR:
  158.             /* FIXME: Only temporary solution until request storage will be created  */
  159.            
  160.             while (!keybuffer_pop(&(connections[active_client].keybuffer), (char *)&arg1)) {
  161.                 /* FIXME: buffer empty -> store request */
  162.                 usleep(10000);
  163.             };
  164.            
  165.             break;
  166.         }
  167.         ipc_answer_fast(callid, 0, arg1, 0);
  168.     }
  169. }
  170.  
  171. int main(int argc, char *argv[])
  172. {
  173.     ipcarg_t phonehash;
  174.     int kbd_phone, fb_phone;
  175.     ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
  176.     int i;
  177.    
  178.     /* Connect to keyboard driver */
  179.  
  180.     while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
  181.         usleep(10000);
  182.     };
  183.    
  184.     if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
  185.         return -1;
  186.     };
  187.     async_new_connection(phonehash, 0, NULL, keyboard_events);
  188.  
  189.     /* Connect to framebuffer driver */
  190.    
  191.     for (i = 0; i < CONSOLE_COUNT; i++) {
  192.         connections[i].used = 0;
  193.         keybuffer_init(&(connections[i].keybuffer));
  194.         /* TODO: init key_buffer */
  195.         while ((connections[i].vfb_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
  196.             usleep(10000);
  197.             //ipc_call_async_2(connections[i].vfb_phone, FB_PUTCHAR, 'a', 'b', NULL, (void *)NULL);
  198.         }
  199.     }
  200.    
  201.     if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
  202.         return -1;
  203.     };
  204.    
  205.     async_manager();
  206.  
  207.     return 0;  
  208. }
  209.