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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 8
  48.  
  49. #define NAME "CONSOLE"
  50.  
  51. int active_console = 1;
  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.     char c;
  97.  
  98.     /* Ignore parameters, the connection is alread opened */
  99.     while (1) {
  100.         callid = async_get_call(&call);
  101.         switch (IPC_GET_METHOD(call)) {
  102.         case IPC_M_PHONE_HUNGUP:
  103.             ipc_answer_fast(callid,0,0,0);
  104.             /* TODO: Handle hangup */
  105.             return;
  106.         case KBD_PUSHCHAR:
  107.             /* got key from keyboard driver */
  108.            
  109.             /* find active console */
  110.            
  111.             /* if client is awaiting key, send it */
  112.            
  113.             /*FIXME: else store key to its buffer */
  114.             retval = 0;
  115.             c = IPC_GET_ARG1(call);
  116. //          ipc_call_sync_2(connections[3].vfb_phone, FB_PUTCHAR, 0, c,NULL,NULL);
  117.             /* switch to another virtual console */
  118.             if ((c >= KBD_KEY_F1) && (c < KBD_KEY_F1 + CONSOLE_COUNT)) {
  119.                 active_console = c - KBD_KEY_F1;
  120.                 break;
  121.             }
  122.             keybuffer_push(&(connections[active_console].keybuffer), c);
  123.            
  124.             /* Send it to first FB, DEBUG */
  125. //          ipc_call_async_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
  126. //          ipc_call_sync_2(connections[4].vfb_phone, FB_PUTCHAR, 0, c,NULL,NULL);
  127.  
  128.             break;
  129.         default:
  130.             retval = ENOENT;
  131.         }      
  132.         ipc_answer_fast(callid, retval, 0, 0);
  133.     }
  134. }
  135.  
  136. /** Default thread for new connections */
  137. void client_connection(ipc_callid_t iid, ipc_call_t *icall)
  138. {
  139.     ipc_callid_t callid;
  140.     ipc_call_t call;
  141.     int consnum;
  142.     ipcarg_t arg1;
  143.  
  144.     if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
  145.         ipc_answer_fast(iid,ELIMIT,0,0);
  146.         return;
  147.     }
  148.     connections[consnum].used = 1;
  149.     connections[consnum].client_phone = IPC_GET_ARG3(call);
  150.  
  151.     /* Accept the connection */
  152.     ipc_answer_fast(iid,0,0,0);
  153.    
  154.     while (1) {
  155.         callid = async_get_call(&call);
  156.         switch (IPC_GET_METHOD(call)) {
  157.         case IPC_M_PHONE_HUNGUP:
  158.             /* TODO */
  159.             ipc_answer_fast(callid, 0,0,0);
  160.             return;
  161.         case CONSOLE_PUTCHAR:
  162.             if (consnum != active_console) {
  163.             }
  164.             /* Send message to fb */
  165.             ipc_call_sync_2(connections[consnum].vfb_phone, FB_PUTCHAR, IPC_GET_ARG1(call), IPC_GET_ARG2(call), NULL, NULL);
  166. //          ipc_call_sync_2(connections[6].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG2(call),NULL,NULL);
  167.             break;
  168.         case CONSOLE_CLEAR:
  169.             break;
  170.         case CONSOLE_GOTO:
  171.             break;
  172.  
  173.         case CONSOLE_GETCHAR:
  174.             /* FIXME: Only temporary solution until request storage will be created  */
  175.             while (keybuffer_empty(&(connections[consnum].keybuffer))) {
  176.                 /* FIXME: buffer empty -> store request */
  177.                 async_usleep(1000);
  178.             };
  179.             keybuffer_pop(&(connections[consnum].keybuffer), (char *)&arg1);
  180. //          ipc_call_sync_2(connections[6].vfb_phone, FB_PUTCHAR, 0, arg1,NULL,NULL);
  181.            
  182.             break;
  183.         }
  184.         ipc_answer_fast(callid, 0, arg1, 0);
  185.     }
  186. }
  187.  
  188. int main(int argc, char *argv[])
  189. {
  190.     ipcarg_t phonehash;
  191.     int kbd_phone, fb_phone;
  192.     ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
  193.     int i;
  194.    
  195.     /* Connect to keyboard driver */
  196.  
  197.     while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
  198.         usleep(10000);
  199.     };
  200.    
  201.     if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
  202.         return -1;
  203.     };
  204.     async_new_connection(phonehash, 0, NULL, keyboard_events);
  205.  
  206.     /* Connect to framebuffer driver */
  207.    
  208.     for (i = 0; i < CONSOLE_COUNT; i++) {
  209.         connections[i].used = 0;
  210.         keybuffer_init(&(connections[i].keybuffer));
  211.         /* TODO: init key_buffer */
  212.         while ((connections[i].vfb_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
  213.             usleep(10000);
  214.             //ipc_call_async_2(connections[i].vfb_phone, FB_PUTCHAR, 'a', 'b', NULL, (void *)NULL);
  215.         }
  216.     }
  217.    
  218.     if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
  219.         return -1;
  220.     };
  221.    
  222.     async_manager();
  223.  
  224.     return 0;  
  225. }
  226.