added license GPL

[winnie] / src / fbdev / keyboard.cc

diff --git a/src/fbdev/keyboard.cc b/src/fbdev/keyboard.cc
index 77f0bdd..d1d5077 100644 (file)
--- a/src/fbdev/keyboard.cc
+++ b/src/fbdev/keyboard.cc
@@ -1,3 +1,24 @@
+/*
+winnie - an experimental window system
+
+Copyright (C) 2013 Eleni Maria Stea
+
+This program 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.
+
+This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Author: Eleni Maria Stea <elene.mst@gmail.com>
+*/
+
 #ifdef WINNIE_FBDEV
 #include <errno.h>
 #include <stdio.h>
@@ -10,22 +31,34 @@
 #include <unistd.h>
 
 #include "keyboard.h"
+#include "shalloc.h"
 #include "window.h"
 #include "wm.h"
 
-static int dev_fd = -1;
-static enum {RAW, CANONICAL} ttystate = CANONICAL;
+struct Keyboard {
+       int dev_fd;
+       enum {RAW, CANONICAL} ttystate;
+};
+
+static Keyboard *keyboard;
 
 bool init_keyboard()
 {
-       if((dev_fd = open("/dev/tty", O_RDWR)) == -1) {
+       if(!(keyboard = (Keyboard*)sh_malloc(sizeof *keyboard))) {
+               return false;
+       }
+
+       keyboard->ttystate = keyboard->CANONICAL;
+       keyboard->dev_fd = -1;
+
+       if((keyboard->dev_fd = open("/dev/tty", O_RDWR)) == -1) {
                fprintf(stderr, "Cannot open /dev/tty : %s\n", strerror(errno));
                return false;
        }
 
        struct termios buf;
 
-       if(tcgetattr(dev_fd, &buf) < 0) {
+       if(tcgetattr(keyboard->dev_fd, &buf) < 0) {
                fprintf(stderr, "Cannot get the tty parameters : %s\n", strerror(errno));
                return false;
        }
@@ -36,11 +69,11 @@ bool init_keyboard()
        buf.c_cflag |= CS8;
        buf.c_oflag &= ~(OPOST);
 
-       if(tcsetattr(dev_fd, TCSAFLUSH, &buf) < 0) {
+       if(tcsetattr(keyboard->dev_fd, TCSAFLUSH, &buf) < 0) {
                return false;
        }
 
-       ttystate = RAW;
+       keyboard->ttystate = keyboard->RAW;
        return true;
 }
 
@@ -48,7 +81,7 @@ void destroy_keyboard()
 {
        struct termios buf;
 
-       if(tcgetattr(dev_fd, &buf) < 0) {
+       if(tcgetattr(keyboard->dev_fd, &buf) < 0) {
                fprintf(stderr, "Cannot get the tty parameters : %s\n", strerror(errno));
        }
 
@@ -58,27 +91,29 @@ void destroy_keyboard()
        buf.c_cflag &= CS8;
        buf.c_oflag |= (OPOST);
 
-       if(tcsetattr(dev_fd, TCSAFLUSH, &buf) < 0) {
+       if(tcsetattr(keyboard->dev_fd, TCSAFLUSH, &buf) < 0) {
                fprintf(stderr, "Cannot set the tty parameters : %s\n", strerror(errno));
        }
 
-       ttystate = CANONICAL;
+       keyboard->ttystate = keyboard->CANONICAL;
 
-       if(dev_fd != -1) {
-               close(dev_fd);
-               dev_fd = -1;
+       if(keyboard->dev_fd != -1) {
+               close(keyboard->dev_fd);
+               keyboard->dev_fd = -1;
        }
+
+       sh_free(keyboard);
 }
 
 int get_keyboard_fd()
 {
-       return dev_fd;
+       return keyboard->dev_fd;
 }
 
 void process_keyboard_event()
 {
        char key;
-       if(read(dev_fd, &key, 1) < 1) {
+       if(read(keyboard->dev_fd, &key, 1) < 1) {
                return;
        }