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-rw-r--r--drivers/tdisp/HD44780/tdisp_lld.c153
-rw-r--r--drivers/tdisp/HD44780/tdisp_lld.mk6
-rw-r--r--drivers/tdisp/HD44780/tdisp_lld_board_example.h64
-rw-r--r--drivers/tdisp/HD44780/tdisp_lld_config.h45
4 files changed, 268 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..d0f4af0d
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld.c
@@ -0,0 +1,153 @@
+/*
+ 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__)*/
+
+#include "tdisp_lld_board_example.h"
+
+static void _writeData(uint8_t data) {
+ write_bus(data);
+
+ setpin_e(TRUE);
+ chThdSleepMicroseconds(1);
+ setpin_e(FALSE);
+ chThdSleepMicroseconds(5);
+}
+
+void tdisp_lld_write_cmd(uint8_t data) {
+ setpin_rs(FALSE);
+ setpin_rw(FALSE);
+
+ #if TDISP_NEED_4BIT_MODE
+ _writeData(data>>4);
+ #endif
+ _writeData(data);
+}
+
+void tdisp_lld_write_data(uint8_t data) {
+ setpin_rs(TRUE);
+ setpin_rw(FALSE);
+
+ #if TDISP_NEED_4BIT_MODE
+ _writeData(data>>4);
+ #endif
+ _writeData(data);
+}
+
+bool_t tdisp_lld_init(void) {
+ /* initialise MCU hardware */
+ init_board();
+
+ /* wait some time */
+ 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;
+}
+
+void tdisp_lld_set_cursor(coord_t col, coord_t row) {
+ uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
+
+ if(row >= TDISP_ROWS)
+ row = TDISP_ROWS - 1;
+
+ tdisp_lld_write_cmd(0x80 | (col + row_offsets[row]));
+}
+
+void tdisp_lld_create_char(uint8_t address, char *charmap) {
+ uint8_t i;
+
+ /* make sure we don't write somewhere we're not supposed to */
+ address &= TDISP_MAX_CUSTOM_CHARS;
+
+ tdisp_lld_write_cmd(0x40 | (address << 3));
+
+ for(i = 0; i < 8; i++) {
+ tdisp_lld_write_data(charmap[i]);
+ }
+}
+
+void tdisp_lld_clear(void) {
+ tdisp_lld_write_cmd(0x01);
+}
+
+void tdisp_lld_home(void) {
+ tdisp_lld_write_cmd(0x02);
+}
+
+void tdisp_lld_control(uint16_t what, void *value) {
+ (void)what;
+ (void)value;
+/*
+ switch(attributes) {
+ case TDISP_ON:
+ _displaycontrol |= 0x04;
+ tdisp_lld_write_cmd(0x08 | _displaycontrol);
+ break;
+ case TDISP_OFF:
+ _displaycontrol &=~ 0x04;
+ tdisp_lld_write_cmd(0x08 | _displaycontrol);
+ break;
+ case TDISP_CURSOR_ON:
+ _displaycontrol |= 0x02;
+ tdisp_lld_write_cmd(0x08 | _displaycontrol);
+ break;
+ case TDISP_CURSOR_OFF:
+ _displaycontrol &=~ 0x02;
+ tdisp_lld_write_cmd(0x08 | _displaycontrol);
+ break;
+ case TDISP_CURSOR_BLINK_ON:
+ _displaycontrol |= 0x00;
+ tdisp_lld_write_cmd(0x08 | _displaycontrol);
+ break;
+ case TDISP_CURSOR_BLINK_OFF:
+ _displaycontrol &=~ 0x00;
+ tdisp_lld_write_cmd(0x08 | _displaycontrol);
+ break;
+ }
+*/
+}
+
+#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..3f5c47d7
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld_board_example.h
@@ -0,0 +1,64 @@
+/*
+ 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(GPIOG, 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(GPIOG, 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..3b37cd70
--- /dev/null
+++ b/drivers/tdisp/HD44780/tdisp_lld_config.h
@@ -0,0 +1,45 @@
+/*
+ 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_MAX_CUSTOM_CHARS 0x07
+
+#endif /* GFX_USE_TDISP */
+
+#endif /* _TDISP_LLD_CONFIG_H */
+/** @} */
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-04 20:27:07 +0000