--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/brewco/keyboard.c Thu Nov 26 22:47:42 2015 +0100
@@ -0,0 +1,243 @@
+/*****************************************************************************
+ * Copyright (C) 2015
+ *
+ * Michiel Broek <mbroek at mbse dot eu>
+ *
+ * This file is part of the mbsePi-apps
+ *
+ * This 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 2, or (at your option) any
+ * later version.
+ *
+ * mbsePi-apps 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 ThermFerm; see the file COPYING. If not, write to the Free
+ * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *****************************************************************************/
+
+#include "brewco.h"
+#include "lcd-pcf8574.h"
+#include "slcd.h"
+#include "keyboard.h"
+
+
+
+/*
+ * 10 Milliseconds counts for a key to be short or long pressed.
+ */
+#define PRESS_NORMAL 5
+#define PRESS_LONG 200
+
+/*
+ * LCD timeout in seconds
+ */
+#define LCD_SLEEP 120
+
+/*
+ * Menu timeout in seconds
+ */
+#define MENU_TIMEOUT 60
+
+
+
+extern int my_shutdown;
+extern int debug;
+extern int setupmenu;
+extern uint16_t keys;
+extern uint16_t leds;
+extern int slcdHandle;
+
+int Key_Enter = FALSE;
+int Key_Return = FALSE;
+int Key_Up = FALSE;
+int Key_Down = FALSE;
+
+int previous_key = KEY_NONE;
+int menutimer = 0;
+
+
+int keypressed(void);
+
+
+/*
+ * Check for a key. Return last pressed key or none.
+ */
+int keycheck(void)
+{
+ int key, retkey = KEY_NONE;
+
+ key = keypressed();
+ if ((key == KEY_NONE) && (previous_key != KEY_NONE)) {
+ retkey = previous_key;
+ }
+
+ previous_key = key;
+ return retkey;
+}
+
+
+
+int keypressed(void)
+{
+ if (Key_Enter && Key_Up && Key_Down && Key_Return)
+ return KEY_ALL;
+ if (Key_Up)
+ return KEY_UP;
+ if (Key_Down)
+ return KEY_DOWN;
+ if (Key_Enter)
+ return KEY_ENTER;
+ if (Key_Return)
+ return KEY_RETURN;
+ return KEY_NONE;
+}
+
+
+#ifdef HAVE_WIRINGPI_H
+PI_THREAD (my_panel_loop)
+#else
+void *my_panel_loop(void *threadid)
+#endif
+{
+ int Return = 0, Enter = 0, Up = 0, Down = 0, Backlight = LCD_SLEEP, AnyKey = FALSE;
+ time_t Last = (time_t)0, Now;
+
+#ifdef HAVE_WIRINGPI_H
+ pinMode(PANEL_RETURN, INPUT);
+ pinMode(PANEL_ENTER, INPUT);
+ pinMode(PANEL_UP, INPUT);
+ pinMode(PANEL_DOWN, INPUT);
+#endif
+
+ syslog(LOG_NOTICE, "Thread my_panel_loop started");
+
+ /*
+ * Loop forever until the external shutdown variable is set.
+ */
+ for (;;) {
+ if (my_shutdown)
+ break;
+
+#ifdef HAVE_WIRINGPI_H
+ if (digitalRead(PANEL_ENTER) && ((keys & 0x0001) == 0)) {
+#else
+ if ((keys & 0x0001) == 0) {
+#endif
+ Enter = 0;
+ Key_Enter = FALSE;
+ } else {
+ Enter++;
+ if (Enter > PRESS_NORMAL)
+ Key_Enter = TRUE;
+ }
+
+#ifdef HAVE_WIRINGPI_H
+ if (digitalRead(PANEL_RETURN) && ((keys & 0x0002) == 0)) {
+#else
+ if ((keys & 0x0002) == 0) {
+#endif
+ Return = 0;
+ Key_Return = FALSE;
+ } else {
+ Return++;
+ if (Return > PRESS_NORMAL)
+ Key_Return = TRUE;
+ }
+
+#ifdef HAVE_WIRINGPI_H
+ if (digitalRead(PANEL_UP) && ((keys & 0x0008) == 0)) {
+#else
+ if ((keys & 0x0008) == 0) {
+#endif
+ Up = 0;
+ Key_Up = FALSE;
+ } else {
+ Up++;
+ if (Up > PRESS_NORMAL)
+ Key_Up = TRUE;
+ }
+
+#ifdef HAVE_WIRINGPI_H
+ if (digitalRead(PANEL_DOWN) && ((keys & 0x0004) == 0)) {
+#else
+ if ((keys & 0x0004) == 0) {
+#endif
+ Down = 0;
+ Key_Down = FALSE;
+ } else {
+ Down++;
+ if (Down > PRESS_NORMAL)
+ Key_Down = TRUE;
+ }
+
+ if (Key_Enter || Key_Return || Key_Up || Key_Down) {
+ AnyKey = TRUE;
+ /*
+ * Any key is pressed.
+ */
+#ifdef HAVE_WIRINGPI_H
+ piLock(LOCK_LCD);
+#endif
+ setBacklight(1);
+#ifdef HAVE_WIRINGPI_H
+ piUnlock(LOCK_LCD);
+#endif
+ Backlight = LCD_SLEEP;
+ menutimer = 0;
+ } else {
+ /*
+ * No key pressed.
+ */
+ AnyKey = FALSE;
+ }
+
+ Now = time(NULL);
+ if (Now != Last) {
+ Last = Now;
+
+ if (AnyKey == FALSE) {
+ if (Backlight == 1) {
+#ifdef HAVE_WIRINGPI_H
+ piLock(LOCK_LCD);
+#endif
+ setBacklight(0);
+#ifdef HAVE_WIRINGPI_H
+ piUnlock(LOCK_LCD);
+#endif
+ }
+ if (Backlight > 0) {
+ Backlight--;
+ }
+
+#ifdef HAVE_WIRINGPI_H
+// piLock(LOCK_MENU);
+#endif
+// if (setupmenu != MENU_NONE) {
+// if (menutimer < MENU_TIMEOUT)
+// menutimer++;
+// else {
+// setupmenu = MENU_NONE;
+// }
+// }
+#ifdef HAVE_WIRINGPI_H
+// piUnlock(LOCK_MENU);
+#endif
+ }
+ }
+
+ /*
+ * Loop 10 milliseconds
+ */
+ usleep(10000);
+ }
+
+ syslog(LOG_NOTICE, "Thread my_panel_loop stopped");
+ return 0;
+}
+
+