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1490 palkovsky 1
/*
2071 jermar 2
 * Copyright (c) 2006 Ondrej Palkovsky
1490 palkovsky 3
 * 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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1649 cejka 29
/** @defgroup sysio SysIO
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 * @brief   HelenOS framebuffer emulation via kernel.
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 * @ingroup fbs
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 * @{
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 */
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/** @file
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 */
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1490 palkovsky 37
#include <async.h>
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#include <ipc/fb.h>
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#include <ipc/ipc.h>
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#include <libc.h>
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#include <errno.h>
1492 palkovsky 42
#include <string.h>
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#include <libc.h>
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#include <stdio.h>
1490 palkovsky 45
 
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#include "sysio.h"
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1630 palkovsky 48
#define WIDTH 80
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#define HEIGHT 25
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1490 palkovsky 51
/* Allow only 1 connection */
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static int client_connected = 0;
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static void sysput(char c)
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{
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    __SYSCALL3(SYS_IO, 1, (sysarg_t)&c, (sysarg_t) 1);
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}
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1492 palkovsky 59
static void sysputs(char *s)
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{
1542 palkovsky 61
    while (*s) {
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        sysput(*(s++));
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    }
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//  __SYSCALL3(SYS_IO, 1, (sysarg_t)s, strlen(s));
1492 palkovsky 65
}
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1498 palkovsky 67
/** Send clearscreen sequence to console */
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static void clrscr(void)
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{
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    sysputs("\033[2J");
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}
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/** Send ansi sequence to console to change cursor position */
1492 palkovsky 74
static void curs_goto(unsigned int row, unsigned int col)
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{
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    char control[20];
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1498 palkovsky 78
    if (row > 200 || col > 200)
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        return;
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1500 palkovsky 81
    snprintf(control, 20, "\033[%d;%df",row+1, col+1);
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    sysputs(control);
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}
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1534 palkovsky 85
static void set_style(int mode)
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{
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    char control[20];
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1535 palkovsky 89
    snprintf(control, 20, "\033[%dm", mode);
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    sysputs(control);
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}
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1630 palkovsky 93
static void scroll(int i)
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{
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    if (i > 0) {
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        curs_goto(HEIGHT-1, 0);
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        while (i--)
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            sysputs("\033D");
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    } else if (i < 0) {
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        curs_goto(0,0);
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        while (i++)
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            sysputs("\033M");
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    }
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}
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1498 palkovsky 106
/** ANSI terminal emulation main thread */
1490 palkovsky 107
static void sysio_client_connection(ipc_callid_t iid, ipc_call_t *icall)
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{
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    int retval;
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    ipc_callid_t callid;
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    ipc_call_t call;
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    char c;
1492 palkovsky 113
    int lastcol=0;
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    int lastrow=0;
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    int newcol,newrow;
1534 palkovsky 116
    int fgcolor,bgcolor;
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    int i;
1490 palkovsky 118
 
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    if (client_connected) {
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        ipc_answer_fast(iid, ELIMIT, 0,0);
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        return;
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    }
1719 decky 123
 
1490 palkovsky 124
    client_connected = 1;
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    ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
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    while (1) {
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        callid = async_get_call(&call);
1719 decky 128
        switch (IPC_GET_METHOD(call)) {
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            case IPC_M_PHONE_HUNGUP:
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                client_connected = 0;
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                ipc_answer_fast(callid, 0, 0, 0);
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                return; /* Exit thread */
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            case FB_PUTCHAR:
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                c = IPC_GET_ARG1(call);
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                newrow = IPC_GET_ARG2(call);
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                newcol = IPC_GET_ARG3(call);
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                if ((lastcol != newcol) || (lastrow != newrow))
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                    curs_goto(newrow, newcol);
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                lastcol = newcol + 1;
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                lastrow = newrow;
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                sysput(c);
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                retval = 0;
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                break;
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            case FB_CURSOR_GOTO:
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                newrow = IPC_GET_ARG1(call);
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                newcol = IPC_GET_ARG2(call);
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                curs_goto(newrow, newcol);
1719 decky 148
                lastrow = newrow;
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                lastcol = newcol;
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                retval = 0;
1630 palkovsky 151
                break;
1719 decky 152
            case FB_GET_CSIZE:
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                ipc_answer_fast(callid, 0, HEIGHT, WIDTH);
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                continue;
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            case FB_CLEAR:
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                clrscr();
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                retval = 0;
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                break;
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            case FB_SET_STYLE:
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                fgcolor = IPC_GET_ARG1(call);
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                bgcolor = IPC_GET_ARG2(call);
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                if (fgcolor < bgcolor)
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                    set_style(0);
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                else
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                    set_style(7);
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                retval = 0;
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                break;
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            case FB_SCROLL:
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                i = IPC_GET_ARG1(call);
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                if ((i > HEIGHT) || (i < -HEIGHT)) {
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                    retval = EINVAL;
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                    break;
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                }
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                scroll(i);
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                curs_goto(lastrow, lastcol);
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                retval = 0;
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                break;
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            default:
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                retval = ENOENT;
1490 palkovsky 180
        }
1719 decky 181
 
182
        ipc_answer_fast(callid, retval, 0, 0);
1490 palkovsky 183
    }
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}
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1498 palkovsky 186
/** ANSI terminal emulation initialization */
1490 palkovsky 187
void sysio_init(void)
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{
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    async_set_client_connection(sysio_client_connection);
1498 palkovsky 190
    clrscr();
1492 palkovsky 191
    curs_goto(0,0);
1630 palkovsky 192
    /* Set scrolling region to 0-25 lines */
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    sysputs("\033[0;25r");
1490 palkovsky 194
}
1649 cejka 195
 
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/**
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 * @}
1719 decky 198
 */