added TDISP - experimental

4 files changed, 200 insertions, 0 deletions

diff --git a/drivers/tdisp/HD44780/tdisp_lld.c b/drivers/tdisp/HD44780/tdisp_lld.c
new file mode 100644
index 00000000..b830a7ca
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld.c
@@ -0,0 +1,87 @@
+/*
+    ChibiOS/GFX - Copyright (C) 2012
+                 Joel Bodenmann aka Tectu <joel@unormal.org>
+
+    This file is part of ChibiOS/GFX.
+
+    ChibiOS/GFX 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.
+
+    ChibiOS/GFX 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/>.
+*/
+
+/**
+ * @file    drivers/tdisp/HD44780/tdisp_lld.c
+ * @brief   TDISP driver subsystem low level driver source for the HD44780 display
+ *
+ * @addtogroup TDISP
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+#include "gfx.h"
+
+#if GFX_USE_TDISP /*|| defined(__DOXYGEN__)*/
+
+#ifndef TDISP_ROWS
+	#define TDISP_ROWS		16
+#endif
+#ifndef TDISP_COLUMNS
+	#define TDISP_COLUMNS	2
+#endif
+
+#include "tdisp_lld_board_example.h"
+
+void TDISP_LLD(write_cmd)(uint8_t data) {
+	setpin_rs(FALSE);
+	setpin_rw(FALSE);
+
+	write_bus(data);
+
+	setpin_e(TRUE);
+	chThdSleepMicroseconds(1);
+	setpin_e(FALSE);
+	chThdSleepMicroseconds(5);
+}
+
+void TDISP_LLD(write_data)(uint8_t data) {
+	setpin_rs(TRUE);
+	setpin_rw(FALSE);
+
+	write_bus(data);
+
+	setpin_e(TRUE);
+	chThdSleepMicroseconds(1);
+	setpin_e(FALSE);
+	chThdSleepMicroseconds(5);
+}
+
+bool_t TDISP_LLD(init)(void) { 
+	/* initialise hardware */
+	init_board();
+
+	/* initialise controller */
+	chThdSleepMilliseconds(50);
+	TDISP_LLD(write_cmd)(0x38);
+	chThdSleepMilliseconds(64);
+	TDISP_LLD(write_cmd)(0x0f);	
+	chThdSleepMicroseconds(50);
+	TDISP_LLD(write_cmd)(0x01);
+	chThdSleepMilliseconds(5);
+	TDISP_LLD(write_cmd)(0x06);
+	chThdSleepMicroseconds(50);
+
+	return TRUE;
+}
+
+#endif /* GFX_USE_TDISP */
+
diff --git a/drivers/tdisp/HD44780/tdisp_lld.mk b/drivers/tdisp/HD44780/tdisp_lld.mk
new file mode 100644
index 00000000..88780bea
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld.mk
@@ -0,0 +1,6 @@
+# List the required driver.
+GFXSRC += $(GFXLIB)/drivers/tdisp/HD44780/tdisp_lld.c
+
+# Required include directories
+GFXINC += $(GFXLIB)/drivers/tdisp/HD44780
+
diff --git a/drivers/tdisp/HD44780/tdisp_lld_board_example.h b/drivers/tdisp/HD44780/tdisp_lld_board_example.h
new file mode 100644
index 00000000..e07116d8
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld_board_example.h
@@ -0,0 +1,63 @@
+/*
+    ChibiOS/GFX - Copyright (C) 2012
+                 Joel Bodenmann aka Tectu <joel@unormal.org>
+
+    This file is part of ChibiOS/GFX.
+
+    ChibiOS/GFX 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.
+
+    ChibiOS/GFX 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/>.
+*/
+
+/**
+ * @file    drivers/tdisp/HD44780/tdisp_lld_board_example.h
+ * @brief   TDISP driver subsystem board interface for the HD44780 display
+ *
+ * @addtogroup TDISP
+ * @{
+ */
+
+#ifndef _TDISP_LLD_BOARD_H
+#define _TDISP_LLD_BOARD_H
+
+void init_board(void) {
+	palSetGroupMode(GPIOE, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
+	palSetGroupMode(GPIOD, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
+}
+
+void setpin_e(bool_t state) {
+	if(state)
+		palSetPad(GPIOE, 2);
+	else
+		palClearPad(GPIOE, 2);
+}
+
+void setpin_rs(bool_t state) {
+	if(state)
+		palSetPad(GPIOE, 0);
+	else
+		palClearPad(GPIOE, 0);
+}
+
+void setpin_rw(bool_t state) {
+	if(state)
+		palSetPad(GPIOE, 1);
+	else
+		palClearPad(GPIOE, 1);
+}
+
+void write_bus(uint8_t data) {
+	palWritePort(GPIOD, data);
+}
+
+#endif /* _TDISP_LLD_BOARD_H */
+
diff --git a/drivers/tdisp/HD44780/tdisp_lld_config.h b/drivers/tdisp/HD44780/tdisp_lld_config.h
new file mode 100644
index 00000000..7ea80ea2
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld_config.h
@@ -0,0 +1,44 @@
+/*

+    ChibiOS/GFX - Copyright (C) 2012

+                 Joel Bodenmann aka Tectu <joel@unormal.org>

+

+    This file is part of ChibiOS/GFX.

+

+    ChibiOS/GFX 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.

+

+    ChibiOS/GFX 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/>.

+*/

+

+/**

+ * @file    drivers/tdisp/HD44780/tdisp_lld_config.h

+ * @brief   TDISP Driver subsystem low level driver header for the HD44780 display.

+ *

+ * @addtogroup TDISP

+ * @{

+ */

+

+#ifndef _TDISP_LLD_CONFIG_H

+#define _TDISP_LLD_CONFIG_H

+

+#if GFX_USE_TDISP

+

+/*===========================================================================*/

+/* Driver hardware support.                                                  */

+/*===========================================================================*/

+

+#define TDISP_DRIVER_NAME				"HD44780"

+#define TDISP_LLD(x)					tdisp_lld_##x##_HD44780

+

+#endif	/* GFX_USE_TDISP */

+

+#endif	/* _TDISP_LLD_CONFIG_H */

+/** @} */