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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.  * @addtogroup kbdgen generic
  31.  * @brief   HelenOS generic uspace keyboard handler.
  32.  * @ingroup  kbd
  33.  * @{
  34.  */
  35. /** @file
  36.  */
  37.  
  38. #include <ipc/ipc.h>
  39. #include <ipc/services.h>
  40. #include <stdio.h>
  41. #include <unistd.h>
  42. #include <stdlib.h>
  43. #include <stdio.h>
  44. #include <ipc/ns.h>
  45. #include <errno.h>
  46. #include <arch/kbd.h>
  47. #include <kbd.h>
  48. #include <libadt/fifo.h>
  49. #include <key_buffer.h>
  50. #include <async.h>
  51. #include <keys.h>
  52.  
  53. #define NAME "kbd"
  54.  
  55. int cons_connected = 0;
  56. int phone2cons = -1;
  57. keybuffer_t keybuffer; 
  58.  
  59. static void irq_handler(ipc_callid_t iid, ipc_call_t *call)
  60. {
  61.     int chr;
  62.  
  63. #ifdef MOUSE_ENABLED
  64.     if (mouse_arch_process(phone2cons, call))
  65.         return;
  66. #endif
  67.    
  68.     kbd_arch_process(&keybuffer, call);
  69.  
  70.     if (cons_connected && phone2cons != -1) {
  71.         /*
  72.          * recode to ASCII - one interrupt can produce more than one
  73.          * code so result is stored in fifo
  74.          */
  75.         while (!keybuffer_empty(&keybuffer)) {
  76.             if (!keybuffer_pop(&keybuffer, (int *)&chr))
  77.                 break;
  78.  
  79.             async_msg_1(phone2cons, KBD_PUSHCHAR, chr);
  80.         }
  81.     }
  82. }
  83.  
  84. static void console_connection(ipc_callid_t iid, ipc_call_t *icall)
  85. {
  86.     ipc_callid_t callid;
  87.     ipc_call_t call;
  88.     int retval;
  89.  
  90.     if (cons_connected) {
  91.         ipc_answer_0(iid, ELIMIT);
  92.         return;
  93.     }
  94.     cons_connected = 1;
  95.     ipc_answer_0(iid, EOK);
  96.  
  97.     while (1) {
  98.         callid = async_get_call(&call);
  99.         switch (IPC_GET_METHOD(call)) {
  100.         case IPC_M_PHONE_HUNGUP:
  101.             cons_connected = 0;
  102.             ipc_hangup(phone2cons);
  103.             phone2cons = -1;
  104.             ipc_answer_0(callid, EOK);
  105.             return;
  106.         case IPC_M_CONNECT_TO_ME:
  107.             if (phone2cons != -1) {
  108.                 retval = ELIMIT;
  109.                 break;
  110.             }
  111.             phone2cons = IPC_GET_ARG5(call);
  112.             retval = 0;
  113.             break;
  114.         default:
  115.             retval = EINVAL;
  116.         }
  117.         ipc_answer_0(callid, retval);
  118.     }  
  119. }
  120.  
  121.  
  122. int main(int argc, char **argv)
  123. {
  124.     printf(NAME ": HelenOS Keyboard service\n");
  125.    
  126.     ipcarg_t phonead;
  127.    
  128.     /* Initialize arch dependent parts */
  129.     if (kbd_arch_init())
  130.         return -1;
  131.    
  132.     /* Initialize key buffer */
  133.     keybuffer_init(&keybuffer);
  134.    
  135.     async_set_client_connection(console_connection);
  136.     async_set_interrupt_received(irq_handler);
  137.     /* Register service at nameserver */
  138.     if (ipc_connect_to_me(PHONE_NS, SERVICE_KEYBOARD, 0, 0, &phonead) != 0)
  139.         return -1;
  140.    
  141.     printf(NAME ": Accepting connections\n");
  142.     async_manager();
  143.  
  144.     /* Never reached */
  145.     return 0;
  146. }
  147.  
  148. /**
  149.  * @}
  150.  */
  151.