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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 <sysinfo.h>
  41. #include <stdio.h>
  42. #include <unistd.h>
  43. #include <stdlib.h>
  44. #include <stdio.h>
  45. #include <ipc/ns.h>
  46. #include <async.h>
  47. #include <errno.h>
  48. #include <libadt/fifo.h>
  49. #include <kbd/kbd.h>
  50. #include <kbd/keycode.h>
  51.  
  52. #include <kbd.h>
  53. #include <key_buffer.h>
  54. #include <kbd_port.h>
  55. #include <kbd_ctl.h>
  56. #include <layout.h>
  57.  
  58. #define NAME "kbd"
  59.  
  60. int cons_connected = 0;
  61. int phone2cons = -1;
  62. keybuffer_t keybuffer;
  63.  
  64. /** Currently active modifiers. */
  65. static unsigned mods = KM_NUM_LOCK;
  66.  
  67. /** Currently pressed lock keys. We track these to tackle autorepeat. */
  68. static unsigned lock_keys;
  69.  
  70. int cir_service = 0;
  71. int cir_phone = -1;
  72.  
  73. void kbd_push_scancode(int scancode)
  74. {
  75. /*  printf("scancode: 0x%x\n", scancode);*/
  76.     kbd_ctl_parse_scancode(scancode);
  77. }
  78.  
  79. void kbd_push_ev(int type, unsigned int key)
  80. {
  81.     kbd_event_t ev;
  82.     unsigned mod_mask;
  83.  
  84.     switch (key) {
  85.     case KC_LCTRL: mod_mask = KM_LCTRL; break;
  86.     case KC_RCTRL: mod_mask = KM_RCTRL; break;
  87.     case KC_LSHIFT: mod_mask = KM_LSHIFT; break;
  88.     case KC_RSHIFT: mod_mask = KM_RSHIFT; break;
  89.     case KC_LALT: mod_mask = KM_LALT; break;
  90.     case KC_RALT: mod_mask = KM_RALT; break;
  91.     default: mod_mask = 0; break;
  92.     }
  93.  
  94.     if (mod_mask != 0) {
  95.         if (type == KE_PRESS)
  96.             mods = mods | mod_mask;
  97.         else
  98.             mods = mods & ~mod_mask;
  99.     }
  100.  
  101.     switch (key) {
  102.     case KC_CAPS_LOCK: mod_mask = KM_CAPS_LOCK; break;
  103.     case KC_NUM_LOCK: mod_mask = KM_NUM_LOCK; break;
  104.     case KC_SCROLL_LOCK: mod_mask = KM_SCROLL_LOCK; break;
  105.     default: mod_mask = 0; break;
  106.     }
  107.  
  108.     if (mod_mask != 0) {
  109.         if (type == KE_PRESS) {
  110.             /*
  111.              * Only change lock state on transition from released
  112.              * to pressed. This prevents autorepeat from messing
  113.              * up the lock state.
  114.              */
  115.             mods = mods ^ (mod_mask & ~lock_keys);
  116.             lock_keys = lock_keys | mod_mask;
  117.         } else {
  118.             lock_keys = lock_keys & ~mod_mask;
  119.         }
  120.     }
  121. /*
  122.     printf("type: %d\n", type);
  123.     printf("mods: 0x%x\n", mods);
  124.     printf("keycode: %u\n", key);
  125. */
  126.     ev.type = type;
  127.     ev.key = key;
  128.     ev.mods = mods;
  129.  
  130.     ev.c = layout_parse_ev(&ev);
  131.  
  132.     async_msg_4(phone2cons, KBD_EVENT, ev.type, ev.key, ev.mods, ev.c);
  133. }
  134.  
  135. static void console_connection(ipc_callid_t iid, ipc_call_t *icall)
  136. {
  137.     ipc_callid_t callid;
  138.     ipc_call_t call;
  139.     int retval;
  140.  
  141.     if (cons_connected) {
  142.         ipc_answer_0(iid, ELIMIT);
  143.         return;
  144.     }
  145.     cons_connected = 1;
  146.     ipc_answer_0(iid, EOK);
  147.  
  148.     while (1) {
  149.         callid = async_get_call(&call);
  150.         switch (IPC_GET_METHOD(call)) {
  151.         case IPC_M_PHONE_HUNGUP:
  152.             cons_connected = 0;
  153.             ipc_hangup(phone2cons);
  154.             phone2cons = -1;
  155.             ipc_answer_0(callid, EOK);
  156.             return;
  157.         case IPC_M_CONNECT_TO_ME:
  158.             if (phone2cons != -1) {
  159.                 retval = ELIMIT;
  160.                 break;
  161.             }
  162.             phone2cons = IPC_GET_ARG5(call);
  163.             retval = 0;
  164.             break;
  165.         default:
  166.             retval = EINVAL;
  167.         }
  168.         ipc_answer_0(callid, retval);
  169.     }  
  170. }
  171.  
  172.  
  173. int main(int argc, char **argv)
  174. {
  175.     printf(NAME ": HelenOS Keyboard service\n");
  176.    
  177.     ipcarg_t phonead;
  178.    
  179.     if (sysinfo_value("kbd.cir.fhc") == 1)
  180.         cir_service = SERVICE_FHC;
  181.     else if (sysinfo_value("kbd.cir.obio") == 1)
  182.         cir_service = SERVICE_OBIO;
  183.    
  184.     if (cir_service) {
  185.         while (cir_phone < 0) {
  186.             cir_phone = ipc_connect_me_to_blocking(PHONE_NS, cir_service,
  187.                 0, 0);
  188.         }
  189.     }
  190.    
  191.     /* Initialize port driver. */
  192.     if (kbd_port_init())
  193.         return -1;
  194.    
  195.     /* Initialize key buffer */
  196.     keybuffer_init(&keybuffer);
  197.    
  198.     async_set_client_connection(console_connection);
  199.  
  200.     /* Register service at nameserver. */
  201.     if (ipc_connect_to_me(PHONE_NS, SERVICE_KEYBOARD, 0, 0, &phonead) != 0)
  202.         return -1;
  203.    
  204.     printf(NAME ": Accepting connections\n");
  205.     async_manager();
  206.  
  207.     /* Not reached. */
  208.     return 0;
  209. }
  210.  
  211. /**
  212.  * @}
  213.  */
  214.