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1445 cejka 1 
/*
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 * Copyright (C) 2006 Josef Cejka
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <kbd.h>
1451 cejka 31 
#include <fb.h>
1445 cejka 32 
#include <ipc/ipc.h>
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#include <ipc/fb.h>
1445 cejka 34 
#include <ipc/services.h>
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#include <errno.h>
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#include <key_buffer.h>
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#include <console.h>
1453 palkovsky 38 
#include <unistd.h>
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#include <async.h>
1445 cejka 40 
 
1451 cejka 41 
//#define CONSOLE_COUNT VFB_CONNECTIONS
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#define CONSOLE_COUNT 6
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1445 cejka 44 
#define NAME "CONSOLE"
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1453 palkovsky 46 
int active_client = 0;
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1451 cejka 49 
typedef struct {
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    keybuffer_t keybuffer;
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    int client_phone;
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    int vfb_number; /* Not used */
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    int vfb_phone;
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    int used;
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} connection_t;
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connection_t connections[CONSOLE_COUNT];
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static int find_free_connection()
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{
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    int i = 0;
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    while (i < CONSOLE_COUNT) {
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        if (connections[i].used == 0)
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            return i;
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        ++i;
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    }
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    return CONSOLE_COUNT;
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}
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static int find_connection(int client_phone)
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{
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    int i = 0;
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    while (i < CONSOLE_COUNT) {
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        if (connections[i].client_phone == client_phone)
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            return i;
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        ++i;
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    }
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    return  CONSOLE_COUNT;
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}
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1453 palkovsky 84 
/* Handler for keyboard */
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static void keyboard_events(ipc_callid_t iid, ipc_call_t *icall)
1445 cejka 86 
{
1453 palkovsky 87 
    ipc_callid_t callid;
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    ipc_call_t call;
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    int retval;
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    int i;
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    /* Ignore parameters, the connection is alread opened */
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    while (1) {
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        callid = async_get_call(&call);
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        switch (IPC_GET_METHOD(call)) {
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        case IPC_M_PHONE_HUNGUP:
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            ipc_answer_fast(callid,0,0,0);
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            /* TODO: Handle hangup */
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            return;
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        case KBD_PUSHCHAR:
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            /* got key from keyboard driver */
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            /* find active console */
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            /* if client is awaiting key, send it */
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            /*FIXME: else store key to its buffer */
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            retval = 0;
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            i = IPC_GET_ARG1(call) & 0xff;
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            /* switch to another virtual console */
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            if ((i >= KBD_KEY_F1) && (i < KBD_KEY_F1 + CONSOLE_COUNT)) {
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                active_client = i - KBD_KEY_F1;
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                break;
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            }
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            keybuffer_push(&(connections[active_client].keybuffer), i);
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            /* Send it to first FB, DEBUG */
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//          ipc_call_async_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
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            ipc_call_sync_2(connections[0].vfb_phone, FB_PUTCHAR, 0, IPC_GET_ARG1(call),NULL,NULL);
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            break;
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        default:
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            retval = ENOENT;
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        }      
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        ipc_answer_fast(callid, retval, 0, 0);
1453 palkovsky 122 
    }
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}
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/** Default thread for new connections */
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void client_connection(ipc_callid_t iid, ipc_call_t *icall)
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{
1445 cejka 128 
    ipc_callid_t callid;
1453 palkovsky 129 
    ipc_call_t call;
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    int consnum;
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    ipcarg_t arg1;
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    if ((consnum = find_free_connection()) == CONSOLE_COUNT) {
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        ipc_answer_fast(iid,ELIMIT,0,0);
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        return;
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    }
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    connections[consnum].used = 1;
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    connections[consnum].client_phone = IPC_GET_ARG3(call);
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    /* Accept the connection */
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    ipc_answer_fast(iid,0,0,0);
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    while (1) {
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        callid = async_get_call(&call);
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        switch (IPC_GET_METHOD(call)) {
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        case IPC_M_PHONE_HUNGUP:
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            /* TODO */
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            ipc_answer_fast(callid, 0,0,0);
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            return;
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        case CONSOLE_PUTCHAR:
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            /* TODO: send message to fb */
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            ipc_call_async_2(connections[consnum].vfb_phone, FB_PUTCHAR, IPC_GET_ARG1(call), IPC_GET_ARG2(call), NULL, NULL);
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            break;
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        case CONSOLE_GETCHAR:
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            /* FIXME: */
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            if (!keybuffer_pop(&(connections[active_client].keybuffer), (char *)&arg1)) {
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                /* FIXME: buffer empty -> store request */
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                arg1 = 'X'; /* Only temporary */
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            };
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//ipc_call_async_2(connections[active_client].vfb_phone, FB_PUTCHAR, ' ', arg1, NULL, (void *)NULL);
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            break;
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        }
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        ipc_answer_fast(callid, 0,0,0);
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    }
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}
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int main(int argc, char *argv[])
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{
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    ipcarg_t phonehash;
1451 cejka 170 
    int kbd_phone, fb_phone;
1445 cejka 171 
    ipcarg_t retval, arg1 = 0xdead, arg2 = 0xbeef;
1451 cejka 172 
    int i;
1445 cejka 173 
 
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    /* Connect to keyboard driver */
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1451 cejka 176 
    while ((kbd_phone = ipc_connect_me_to(PHONE_NS, SERVICE_KEYBOARD, 0)) < 0) {
1453 palkovsky 177 
        usleep(10000);
1445 cejka 178 
    };
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1453 palkovsky 180 
    if (ipc_connect_to_me(kbd_phone, SERVICE_CONSOLE, 0, &phonehash) != 0) {
1445 cejka 181 
        return -1;
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    };
1453 palkovsky 183 
    async_new_connection(phonehash, 0, NULL, keyboard_events);
1445 cejka 184 
 
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    /* Connect to framebuffer driver */
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1451 cejka 187 
    for (i = 0; i < CONSOLE_COUNT; i++) {
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        connections[i].used = 0;
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        keybuffer_init(&(connections[i].keybuffer));
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        /* TODO: init key_buffer */
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        while ((connections[i].vfb_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VIDEO, 0)) < 0) {
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1453 palkovsky 193 
            ipc_call_async_2(connections[i].vfb_phone, FB_PUTCHAR, 'a', 'b', NULL, (void *)NULL);
1451 cejka 194 
        }
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    }
1445 cejka 196 
 
1453 palkovsky 197 
    if (ipc_connect_to_me(PHONE_NS, SERVICE_CONSOLE, 0, &phonehash) != 0) {
1445 cejka 198 
        return -1;
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    };
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1453 palkovsky 201 
    async_manager();
1451 cejka 202 
 
1445 cejka 203 
    return 0;  
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}