Add the HD4470 type display to Raspberry Pis.

2026-02-04 22:05:41 +08:00 · 2016-03-14 22:58:09 +00:00
parent 3f61e9a287
commit 070bf2bff4
7 changed files with 277 additions and 8 deletions
--- a/HD44780.cpp
+++ b/HD44780.cpp
@@ -0,0 +1,162 @@
+/*
+ *   Copyright (C) 2016 by Jonathan Naylor G4KLX
+ *
+ *   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 2 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, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if defined(RASPBERRY_PI)
+
+#include "HD44780.h"
+#include "Log.h"
+
+#include <wiringPi.h>
+#include <lcd.h>
+
+#include <cstdio>
+#include <cassert>
+
+CHD44780::CHD44780(unsigned int rows, unsigned int cols) :
+m_rows(rows),
+m_cols(cols),
+m_fd(-1)
+{
+}
+
+CHD44780::~CHD44780()
+{
+}
+
+bool CHD44780::open()
+{
+	m_fd = ::lcdInit(m_rows, m_cols, 4, 11, 10, 0, 1, 2, 3, 0, 0, 0, 0);
+	if (m_fd == -1) {
+		LogError("Unable to open the HD44780");
+		return false;
+	}
+
+	::lcdDisplay(m_fd, 1);
+	::lcdCursor(m_fd, 0);
+	::lcdCursorBlink(m_fd, 0);
+
+	return true;
+}
+
+void CHD44780::setIdle()
+{
+	::lcdClear(m_fd);
+
+	::lcdPosition(m_fd, 0, 0);
+	::lcdPuts(m_fd, "MMDVM");
+
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "Idle");
+}
+
+void CHD44780::setLockout()
+{
+	::lcdClear(m_fd);
+
+	::lcdPosition(m_fd, 0, 0);
+	::lcdPuts(m_fd, "MMDVM");
+
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "Lockout");
+}
+
+void CHD44780::setDStar()
+{
+	::lcdClear(m_fd);
+
+	::lcdPosition(m_fd, 0, 0);
+	::lcdPuts(m_fd, "D-Star");
+
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "Listening");
+}
+
+void CHD44780::writeDStar(const char* my1, const char* my2, const char* your)
+{
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPrintf(m_fd, "%s/%s > %s", my1, my2, your);
+}
+
+void CHD44780::clearDStar()
+{
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "Listening       ");
+}
+
+void CHD44780::setDMR()
+{
+	::lcdClear(m_fd);
+
+	::lcdPosition(m_fd, 0, 0);
+	::lcdPuts(m_fd, "1 DMR Listening");
+
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "2 DMR Listening");
+}
+
+void CHD44780::writeDMR(unsigned int slotNo, unsigned int srcId, bool group, unsigned int dstId, const char* type)
+{
+	if (slotNo == 1U) {
+		::lcdPosition(m_fd, 0, 0);
+		::lcdPrintf(m_fd, "1 %s %u > %s%u", type, srcId, group ? "TG" : "", dstId);
+	}
+	else {
+		::lcdPosition(m_fd, 0, 1);
+		::lcdPrintf(m_fd, "2 %s %u > %s%u", type, srcId, group ? "TG" : "", dstId);
+	}
+}
+
+void CHD44780::clearDMR(unsigned int slotNo)
+{
+	if (slotNo == 1U) {
+		::lcdPosition(m_fd, 0, 0);
+		::lcdPuts(m_fd, "1 Listening     ");
+	} else {
+		::lcdPosition(m_fd, 0, 1);
+		::lcdPuts(m_fd, "2 Listening     ");
+	}
+}
+
+void CHD44780::setFusion()
+{
+	::lcdClear(m_fd);
+
+	::lcdPosition(m_fd, 0, 0);
+	::lcdPuts(m_fd, "System Fusion");
+
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "Listening");
+}
+
+void CHD44780::writeFusion(const char* source, const char* dest)
+{
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPrintf(m_fd, "%s > %s", source, dest);
+}
+
+void CHD44780::clearFusion()
+{
+	::lcdPosition(m_fd, 0, 1);
+	::lcdPuts(m_fd, "Listening       ");
+}
+
+void CHD44780::close()
+{
+}
+
+#endif