0,0 → 1,83 |
/* |
* Copyright (C) 2006 Ondrej Palkovsky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include <async.h> |
#include <ipc/fb.h> |
#include <ipc/ipc.h> |
#include <libc.h> |
#include <errno.h> |
|
#include "sysio.h" |
|
/* Allow only 1 connection */ |
static int client_connected = 0; |
|
static void sysput(char c) |
{ |
__SYSCALL3(SYS_IO, 1, (sysarg_t)&c, (sysarg_t) 1); |
} |
|
static void sysio_client_connection(ipc_callid_t iid, ipc_call_t *icall) |
{ |
int retval; |
ipc_callid_t callid; |
ipc_call_t call; |
char c; |
|
if (client_connected) { |
ipc_answer_fast(iid, ELIMIT, 0,0); |
return; |
} |
client_connected = 1; |
ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */ |
while (1) { |
callid = async_get_call(&call); |
switch (IPC_GET_METHOD(call)) { |
case IPC_M_PHONE_HUNGUP: |
client_connected = 0; |
ipc_answer_fast(callid,0,0,0); |
return; /* Exit thread */ |
case FB_PUTCHAR: |
c = IPC_GET_ARG1(call); |
sysput(c); |
retval = 0; |
break; |
case FB_GET_CSIZE: |
ipc_answer_fast(callid, 0, 25, 80); |
continue; |
default: |
retval = ENOENT; |
} |
ipc_answer_fast(callid,retval,0,0); |
} |
} |
|
void sysio_init(void) |
{ |
async_set_client_connection(sysio_client_connection); |
} |