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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. static void sysput(char c)
  42. {
  43.     __SYSCALL3(SYS_IO, 1, &c, 1);
  44.  
  45. }
  46. //#define CONSOLE_COUNT VFB_CONNECTIONS
  47. #define CONSOLE_COUNT 6
  48.  
  49. #define NAME "CONSOLE"
  50.  
  51. int active_client = 0;
  52.  
  53.  
  54. typedef struct {
  55.     keybuffer_t keybuffer;
  56.     int client_phone;
  57.     int vfb_number; /* Not used */
  58.     int vfb_phone;
  59.     int used;
  60. } connection_t;
  61.  
  62. connection_t connections[CONSOLE_COUNT];
  63.  
  64. static int find_free_connection()
  65. {
  66.     int i = 0;
  67.    
  68.     while (i < CONSOLE_COUNT) {
  69.         if (connections[i].used == 0)
  70.             return i;
  71.         ++i;
  72.     }
  73.     return CONSOLE_COUNT;
  74. }
  75.  
  76.  
  77. static int find_connection(int client_phone)
  78. {
  79.     int i = 0;
  80.    
  81.     while (i < CONSOLE_COUNT) {
  82.         if (connections[i].client_phone == client_phone)
  83.             return i;
  84.         ++i;
  85.     }
  86.     return  CONSOLE_COUNT;
  87. }
  88.  
  89. /* Handler for keyboard */
  90. static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
  91. {
  92.     ipc_callid_t callid;
  93.     ipc_call_t call;
  94.     int retval;
  95.     int i;
  96.  
  97.     /* Ignore parameters, the connection is alread opened */
  98.     while (1) {
  99.         callid = async_get_call(&call);
  100.         switch (IPC_GET_METHOD(call)) {
  101.         case IPC_M_PHONE_HUNGUP:
  102.             ipc_answer_fast(callid,0,0,0);
  103.             /* TODO: Handle hangup */
  104.             return;
  105.         case KBD_PUSHCHAR:
  106.             /* got key from keyboard driver */
  107.            
  108.             /* find active console */
  109.            
  110.             /* if client is awaiting key, send it */
  111.            
  112.             /*FIXME: else store key to its buffer */
  113.             retval = 0;
  114.             i = IPC_GET_ARG1(call) & 0xff;
  115.             /* switch to another virtual console */
  116.             if ((i >= KBD_KEY_F1) && (i < KBD_KEY_F1 + CONSOLE_COUNT)) {
  117.                 active_client = i - KBD_KEY_F1;
  118.                 break;
  119.             }
  120.             keybuffer_push(&(connections[active_client].keybuffer), i);
  121.             /* Send it to first FB, DEBUG */
  122. //          ipc_call_async_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
  123. //          ipc_call_sync_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
  124.  
  125.             break;
  126.         default:
  127.             retval = ENOENT;
  128.         }      
  129.         ipc_answer_fast(callid, retval, 0, 0);
  130.     }
  131. }
  132.  
  133. /** Default thread for new connections */
  134. void client_connection(ipc_callid_t iid, ipc_call_t *icall)
  135. {
  136.     ipc_callid_t callid;
  137.     ipc_call_t call;
  138.     int consnum;
  139.     ipcarg_t arg1;
  140.  
  141.     if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
  142.         ipc_answer_fast(iid,ELIMIT,0,0);
  143.         return;
  144.     }
  145.     connections[consnum].used = 1;
  146.     connections[consnum].client_phone = IPC_GET_ARG3(call);
  147.  
  148.     /* Accept the connection */
  149.     ipc_answer_fast(iid,0,0,0);
  150.    
  151.     while (1) {
  152.         callid = async_get_call(&call);
  153.         switch (IPC_GET_METHOD(call)) {
  154.         case IPC_M_PHONE_HUNGUP:
  155.             /* TODO */
  156.             ipc_answer_fast(callid, 0,0,0);
  157.             return;
  158.         case CONSOLE_PUTCHAR:
  159.             /* Send message to fb */
  160.             ipc_call_async_2(connections[consnum].vfb_phone, FB_PUTCHAR, IPC_GET_ARG1(call), IPC_GET_ARG2(call), NULL, NULL);
  161.             break;
  162.         case CONSOLE_GETCHAR:
  163.             /* FIXME: Only temporary solution until request storage will be created  */
  164.             while (!keybuffer_pop(&(connections[active_client].keybuffer), (char *)&arg1)) {
  165.                 /* FIXME: buffer empty -> store request */
  166.                 async_usleep(100000);
  167.             };
  168.            
  169.             break;
  170.         }
  171.         ipc_answer_fast(callid, 0, arg1, 0);
  172.     }
  173. }
  174.  
  175. int main(int argc, char *argv[])
  176. {
  177.     ipcarg_t phonehash;
  178.     int kbd_phone, fb_phone;
  179.     ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
  180.     int i;
  181.    
  182.     /* Connect to keyboard driver */
  183.  
  184.     while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
  185.         usleep(10000);
  186.     };
  187.    
  188.     if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
  189.         return -1;
  190.     };
  191.     async_new_connection(phonehash, 0, NULL, keyboard_events);
  192.  
  193.     /* Connect to framebuffer driver */
  194.    
  195.     for (i = 0; i < CONSOLE_COUNT; i++) {
  196.         connections[i].used = 0;
  197.         keybuffer_init(&(connections[i].keybuffer));
  198.         /* TODO: init key_buffer */
  199.         while ((connections[i].vfb_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
  200.             usleep(10000);
  201.             //ipc_call_async_2(connections[i].vfb_phone, FB_PUTCHAR, 'a', 'b', NULL, (void *)NULL);
  202.         }
  203.     }
  204.    
  205.     if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
  206.         return -1;
  207.     };
  208.    
  209.     async_manager();
  210.  
  211.     return 0;  
  212. }
  213.