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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. #include <ipc/ipc.h>
  30. #include <ipc/services.h>
  31. #include <stdio.h>
  32. #include <unistd.h>
  33. #include <stdlib.h>
  34. #include <stdio.h>
  35. #include <ipc/ns.h>
  36. #include <errno.h>
  37. #include <arch/kbd.h>
  38. #include <kbd.h>
  39. #include <libadt/fifo.h>
  40. #include <key_buffer.h>
  41. #include <async.h>
  42.  
  43. #define NAME "KBD"
  44.  
  45. int cons_connected = 0;
  46. int phone2cons = -1;
  47. keybuffer_t keybuffer; 
  48.  
  49. static void irq_handler(ipc_callid_t iid, ipc_call_t *call)
  50. {
  51.     int chr;
  52.    
  53.     if (cons_connected && phone2cons != -1) {
  54.         /* recode to ASCII - one interrupt can produce more than one code so result is stored in fifo */
  55.         kbd_arch_process(&keybuffer, IPC_GET_ARG2(*call));
  56.        
  57.         while (!keybuffer_empty(&keybuffer)) {
  58.             if (!keybuffer_pop(&keybuffer, (int *)&chr))
  59.                 break;
  60.  
  61.             async_msg(phone2cons, KBD_PUSHCHAR, chr);
  62.         }
  63.     }
  64. }
  65.  
  66. static void console_connection(ipc_callid_t iid, ipc_call_t *icall)
  67. {
  68.     ipc_callid_t callid;
  69.     ipc_call_t call;
  70.     int retval;
  71.  
  72.     if (cons_connected) {
  73.         ipc_answer_fast(iid, ELIMIT, 0, 0);
  74.         return;
  75.     }
  76.     cons_connected = 1;
  77.     ipc_answer_fast(iid, 0, 0, 0);
  78.  
  79.     while (1) {
  80.         callid = async_get_call(&call);
  81.         switch (IPC_GET_METHOD(call)) {
  82.         case IPC_M_PHONE_HUNGUP:
  83.             cons_connected = 0;
  84.             ipc_hangup(phone2cons);
  85.             phone2cons = -1;
  86.             ipc_answer_fast(callid, 0,0,0);
  87.             return;
  88.         case IPC_M_CONNECT_TO_ME:
  89.             if (phone2cons != -1) {
  90.                 retval = ELIMIT;
  91.                 break;
  92.             }
  93.             phone2cons = IPC_GET_ARG3(call);
  94.             retval = 0;
  95.             break;
  96.         }
  97.         ipc_answer_fast(callid, retval, 0, 0);
  98.     }  
  99. }
  100.  
  101.  
  102. int main(int argc, char **argv)
  103. {
  104.     ipc_call_t call;
  105.     ipc_callid_t callid;
  106.     int res;
  107.     ipcarg_t phonead;
  108.     ipcarg_t phoneid;
  109.     char connected = 0;
  110.     ipcarg_t retval, arg1, arg2;
  111.    
  112.     /* Initialize arch dependent parts */
  113.     if (!(res = kbd_arch_init())) {
  114.             return -1;
  115.             };
  116.    
  117.     /* Initialize key buffer */
  118.     keybuffer_init(&keybuffer);
  119.    
  120.     async_set_client_connection(console_connection);
  121.     async_set_interrupt_received(irq_handler);
  122.     /* Register service at nameserver */
  123.     if ((res = ipc_connect_to_me(PHONE_NS, SERVICE_KEYBOARD, 0, &phonead)) != 0) {
  124.         return -1;
  125.     }
  126.  
  127.     async_manager();
  128.  
  129. }
  130.