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sortix--sortix/sortix/terminal.cpp
Jonas 'Sortie' Termansen ecc3114f2a Refactored the system to use the new Terminal interface.
This will allow development of a better terminal providing stdin.

Added new system calls settermmode(2) and gettermmode(2) declared in
<sys/termmode.h>. They allow querying and changing the current mode of
terminals (enabling raw keyboard data, signal handling, line buffering,
UTF-8 encoding stdin, and more). However, all that is unsupported by the
current terminal device driver.

Added KBKEY_ENCODE and KBKEY_DECODE macros to <sys/keycodes.h> which allows
encoding the kbkey format in UTF-32 characters.
2012-01-22 16:48:57 +01:00

73 lines
2.2 KiB
C++

/******************************************************************************
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2012.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along
with Sortix. If not, see <http://www.gnu.org/licenses/>.
terminal.cpp
Provides an interface to terminals for user-space.
******************************************************************************/
#include "platform.h"
#include <libmaxsi/error.h>
#include "syscall.h"
#include "process.h"
#include "terminal.h"
using namespace Maxsi;
namespace Sortix
{
int SysSetTermMode(int fd, unsigned mode)
{
Process* process = CurrentProcess();
Device* dev = process->descriptors.Get(fd);
if ( !dev ) { Error::Set(EBADF); return -1; }
if ( !dev->IsType(Device::TERMINAL) ) { Error::Set(ENOTTY); return -1; }
DevTerminal* term = (DevTerminal*) dev;
return term->SetMode(mode) ? 0 : -1;
}
int SysGetTermMode(int fd, unsigned* mode)
{
Process* process = CurrentProcess();
Device* dev = process->descriptors.Get(fd);
if ( !dev ) { Error::Set(EBADF); return -1; }
if ( !dev->IsType(Device::TERMINAL) ) { Error::Set(ENOTTY); return -1; }
DevTerminal* term = (DevTerminal*) dev;
// TODO: Check that mode is a valid user-space pointer.
*mode = term->GetMode();
return 0;
}
int SysIsATTY(int fd)
{
Process* process = CurrentProcess();
Device* dev = process->descriptors.Get(fd);
if ( !dev ) { Error::Set(EBADF); return 0; }
if ( !dev->IsType(Device::TERMINAL) ) { Error::Set(ENOTTY); return 0; }
return 1;
}
void Terminal::Init()
{
Syscall::Register(SYSCALL_SETTERMMODE, (void*) SysSetTermMode);
Syscall::Register(SYSCALL_GETTERMMODE, (void*) SysGetTermMode);
Syscall::Register(SYSCALL_ISATTY, (void*) SysIsATTY);
}
}