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#include <async.h>
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#include <async.h>
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#include <ipc/fb.h>
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#include <ipc/fb.h>
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#include <ipc/ipc.h>
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#include <ipc/ipc.h>
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#include <libc.h>
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#include <libc.h>
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#include <errno.h>
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#include <errno.h>
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#include <string.h>
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#include <libc.h>
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#include <stdio.h>
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#include "sysio.h"
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#include "sysio.h"
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/* Allow only 1 connection */
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/* Allow only 1 connection */
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static int client_connected = 0;
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static int client_connected = 0;
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#define CLRSCR   "\033[2J"
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static void sysput(char c)
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static void sysput(char c)
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{
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{
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    __SYSCALL3(SYS_IO, 1, (sysarg_t)&c, (sysarg_t) 1);
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    __SYSCALL3(SYS_IO, 1, (sysarg_t)&c, (sysarg_t) 1);
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}
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}
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static void sysputs(char *s)
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{
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    __SYSCALL3(SYS_IO, 1, (sysarg_t)s, strlen(s));
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}
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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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    if (row > 100 || col > 100)
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        return;
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    snprintf(control, 20, "\033[%d;%df",row, col);
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    sysputs(control);
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}
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static void sysio_client_connection(ipc_callid_t iid, ipc_call_t *icall)
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static void sysio_client_connection(ipc_callid_t iid, ipc_call_t *icall)
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{
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{
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    int retval;
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    int retval;
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    ipc_callid_t callid;
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    ipc_callid_t callid;
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    ipc_call_t call;
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    ipc_call_t call;
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    char c;
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    char c;
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    int lastcol=0;
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    int lastrow=0;
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    int newcol,newrow;
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    if (client_connected) {
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    if (client_connected) {
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        ipc_answer_fast(iid, ELIMIT, 0,0);
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        ipc_answer_fast(iid, ELIMIT, 0,0);
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        return;
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        return;
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    }
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    }
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            client_connected = 0;
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            client_connected = 0;
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            ipc_answer_fast(callid,0,0,0);
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            ipc_answer_fast(callid,0,0,0);
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            return; /* Exit thread */
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            return; /* Exit thread */
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        case FB_PUTCHAR:
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        case FB_PUTCHAR:
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            c = IPC_GET_ARG1(call);
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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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            sysput(c);
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            retval = 0;
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            retval = 0;
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            break;
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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);
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            break;
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        case FB_GET_CSIZE:
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        case FB_GET_CSIZE:
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            ipc_answer_fast(callid, 0, 25, 80);
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            ipc_answer_fast(callid, 0, 25, 80);
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            continue;
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            continue;
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        case FB_CLEAR:
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            sysputs(CLRSCR);
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            retval = 0;
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            break;
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        default:
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        default:
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            retval = ENOENT;
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            retval = ENOENT;
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        }
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        }
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        ipc_answer_fast(callid,retval,0,0);
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        ipc_answer_fast(callid,retval,0,0);
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    }
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    }
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}
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}
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 118 
 
80 
void sysio_init(void)
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void sysio_init(void)
81 
{
 120 
{
82 
    async_set_client_connection(sysio_client_connection);
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    async_set_client_connection(sysio_client_connection);
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    sysputs(CLRSCR);
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    curs_goto(0,0);
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}
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}