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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. /** @defgroup kbd Keyboard handler
  30.  * @brief   HelenOS uspace keyboard handler.
  31.  * @{
  32.  * @}
  33.  */
  34. /** @addtogroup kbdgen generic
  35.  * @brief   HelenOS generic uspace keyboard handler.
  36.  * @ingroup  kbd
  37.  * @{
  38.  */
  39. /** @file
  40.  */
  41.  
  42. #include <ipc/ipc.h>
  43. #include <ipc/services.h>
  44. #include <stdio.h>
  45. #include <unistd.h>
  46. #include <stdlib.h>
  47. #include <stdio.h>
  48. #include <ipc/ns.h>
  49. #include <errno.h>
  50. #include <arch/kbd.h>
  51. #include <kbd.h>
  52. #include <libadt/fifo.h>
  53. #include <key_buffer.h>
  54. #include <async.h>
  55.  
  56. #define NAME "KBD"
  57.  
  58. int cons_connected = 0;
  59. int phone2cons = -1;
  60. keybuffer_t keybuffer; 
  61.  
  62. static void irq_handler(ipc_callid_t iid, ipc_call_t *call)
  63. {
  64.     int chr;
  65.    
  66.     if (cons_connected && phone2cons != -1) {
  67.         /* recode to ASCII - one interrupt can produce more than one code so result is stored in fifo */
  68.         kbd_arch_process(&keybuffer, IPC_GET_ARG2(*call));
  69.        
  70.         while (!keybuffer_empty(&keybuffer)) {
  71.             if (!keybuffer_pop(&keybuffer, (int *)&chr))
  72.                 break;
  73.  
  74.             async_msg(phone2cons, KBD_PUSHCHAR, chr);
  75.         }
  76.     }
  77. }
  78.  
  79. static void console_connection(ipc_callid_t iid, ipc_call_t *icall)
  80. {
  81.     ipc_callid_t callid;
  82.     ipc_call_t call;
  83.     int retval;
  84.  
  85.     if (cons_connected) {
  86.         ipc_answer_fast(iid, ELIMIT, 0, 0);
  87.         return;
  88.     }
  89.     cons_connected = 1;
  90.     ipc_answer_fast(iid, 0, 0, 0);
  91.  
  92.     while (1) {
  93.         callid = async_get_call(&call);
  94.         switch (IPC_GET_METHOD(call)) {
  95.         case IPC_M_PHONE_HUNGUP:
  96.             cons_connected = 0;
  97.             ipc_hangup(phone2cons);
  98.             phone2cons = -1;
  99.             ipc_answer_fast(callid, 0,0,0);
  100.             return;
  101.         case IPC_M_CONNECT_TO_ME:
  102.             if (phone2cons != -1) {
  103.                 retval = ELIMIT;
  104.                 break;
  105.             }
  106.             phone2cons = IPC_GET_ARG3(call);
  107.             retval = 0;
  108.             break;
  109.         }
  110.         ipc_answer_fast(callid, retval, 0, 0);
  111.     }  
  112. }
  113.  
  114.  
  115. int main(int argc, char **argv)
  116. {
  117.     ipc_call_t call;
  118.     ipc_callid_t callid;
  119.     int res;
  120.     ipcarg_t phonead;
  121.     ipcarg_t phoneid;
  122.     char connected = 0;
  123.     ipcarg_t retval, arg1, arg2;
  124.    
  125.     /* Initialize arch dependent parts */
  126.     if (!(res = kbd_arch_init())) {
  127.             return -1;
  128.             };
  129.    
  130.     /* Initialize key buffer */
  131.     keybuffer_init(&keybuffer);
  132.    
  133.     async_set_client_connection(console_connection);
  134.     async_set_interrupt_received(irq_handler);
  135.     /* Register service at nameserver */
  136.     if ((res = ipc_connect_to_me(PHONE_NS, SERVICE_KEYBOARD, 0, &phonead)) != 0) {
  137.         return -1;
  138.     }
  139.  
  140.     async_manager();
  141.  
  142. }
  143.  
  144. /**
  145.  * @}
  146.  */
  147.  
  148.