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-rw-r--r--drivers/tdisp/HD44780/tdisp_lld.c328
-rw-r--r--drivers/tdisp/HD44780/tdisp_lld_board_example.h109
2 files changed, 225 insertions, 212 deletions
diff --git a/drivers/tdisp/HD44780/tdisp_lld.c b/drivers/tdisp/HD44780/tdisp_lld.c
index 8a9c886f..32b2b8c9 100644
--- a/drivers/tdisp/HD44780/tdisp_lld.c
+++ b/drivers/tdisp/HD44780/tdisp_lld.c
@@ -1,164 +1,164 @@
-/*
- 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__)*/
-
-/* The user may override the default display size */
-#ifndef TDISP_COLUMNS
- #define TDISP_COLUMNS 16
-#endif
-#ifndef TDISP_ROWS
- #define TDISP_ROWS 2
-#endif
-
-/* Controller Specific Properties */
-#define CUSTOM_CHAR_COUNT 8
-#define CUSTOM_CHAR_XBITS 5
-#define CUSTOM_CHAR_YBITS 8
-
-/* Define the properties of our controller */
-tdispStruct TDISP = {
- TDISP_COLUMNS, TDISP_ROWS, /* cols, rows */
- CUSTOM_CHAR_XBITS, CUSTOM_CHAR_YBITS, /* charBitsX, charBitsY */
- CUSTOM_CHAR_COUNT /* maxCustomChars */
- };
-
-/* Include the hardware interface details */
-#if defined(TDISP_USE_CUSTOM_BOARD) && TDISP_USE_CUSTOM_BOARD
- /* Include the user supplied board definitions */
- #include "tdisp_lld_board.h"
-#elif defined(BOARD_UNKNOWN)
- #include "gdisp_lld_board_unknown.h"
-#else
- /* Include the user supplied board definitions */
- #include "gdisp_lld_board.h"
-#endif
-
-/* Our display control */
-#define DISPLAY_ON 0x04
-#define CURSOR_ON 0x02
-#define CURSOR_BLINK 0x01
-
-static uint8_t displaycontrol;
-
-
-bool_t tdisp_lld_init(void) {
- /* initialise hardware */
- init_board();
-
- /* wait some time */
- chThdSleepMilliseconds(50);
-
- write_cmd(0x38);
- chThdSleepMilliseconds(64);
-
- displaycontrol = DISPLAY_ON | CURSOR_ON | CURSOR_BLINK; // The default displaycontrol
- write_cmd(0x08 | displaycontrol);
- chThdSleepMicroseconds(50);
-
- write_cmd(0x01); // Clear the screen
- chThdSleepMilliseconds(5);
-
- write_cmd(0x06);
- chThdSleepMicroseconds(50);
-
- return TRUE;
-}
-
-void tdisp_lld_clear(void) {
- write_cmd(0x01);
-}
-
-void tdisp_lld_draw_char(char c) {
- write_data(c);
-}
-
-void tdisp_lld_set_cursor(coord_t col, coord_t row) {
- static const uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
-
- /*
- * Short-cut:
- *
- * If x and y = 0 then use the home command.
- *
- * Note: There is probably no advantage as both commands are a single byte
- */
-// if (col == 0 && row == 0) {
-// write_cmd(0x02);
-// return;
-// }
-
- write_cmd(0x80 | (col + row_offsets[row]));
-}
-
-void tdisp_lld_create_char(uint8_t address, uint8_t *charmap) {
- int i;
-
- write_cmd(0x40 | (address << 3));
- for(i = 0; i < CUSTOM_CHAR_YBITS; i++)
- write_data(charmap[i]);
-}
-
-void tdisp_lld_control(uint16_t what, void *value) {
- switch(what) {
- case TDISP_CTRL_BACKLIGHT:
- if ((uint8_t)value)
- displaycontrol |= DISPLAY_ON;
- else
- displaycontrol &= ~DISPLAY_ON;
- write_cmd(0x08 | displaycontrol);
- break;
- case TDISP_CTRL_CURSOR:
- switch((cursorshape)value) {
- case cursorOff:
- displaycontrol &= ~CURSOR_ON;
- break;
- case cursorBlock:
- case cursorUnderline:
- case cursorBar:
- displaycontrol = (displaycontrol | CURSOR_ON) & ~CURSOR_BLINK;
- break;
- case cursorBlinkingBlock:
- case cursorBlinkingUnderline:
- case cursorBlinkingBar:
- default:
- displaycontrol |= (CURSOR_ON | CURSOR_BLINK);
- break;
- }
- write_cmd(0x08 | displaycontrol);
- break;
- }
-}
-
-#endif /* GFX_USE_TDISP */
-/** @} */
-
+/*
+ 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 the hardware interface details */
+#if defined(TDISP_USE_CUSTOM_BOARD) && TDISP_USE_CUSTOM_BOARD
+ /* Include the user supplied board definitions */
+ #include "tdisp_lld_board.h"
+#elif defined(BOARD_UNKNOWN)
+ #include "gdisp_lld_board_unknown.h"
+#else
+ /* Include the user supplied board definitions */
+ #include "gdisp_lld_board.h"
+#endif
+
+/* The user may override the default display size */
+#ifndef TDISP_COLUMNS
+ #define TDISP_COLUMNS 16
+#endif
+#ifndef TDISP_ROWS
+ #define TDISP_ROWS 2
+#endif
+
+/* Controller Specific Properties */
+#define CUSTOM_CHAR_COUNT 8
+#define CUSTOM_CHAR_XBITS 5
+#define CUSTOM_CHAR_YBITS 8
+
+/* Define the properties of our controller */
+tdispStruct TDISP = {
+ TDISP_COLUMNS, TDISP_ROWS, /* cols, rows */
+ CUSTOM_CHAR_XBITS, CUSTOM_CHAR_YBITS, /* charBitsX, charBitsY */
+ CUSTOM_CHAR_COUNT /* maxCustomChars */
+ };
+
+/* Our display control */
+#define DISPLAY_ON 0x04
+#define CURSOR_ON 0x02
+#define CURSOR_BLINK 0x01
+
+static uint8_t displaycontrol;
+
+
+bool_t tdisp_lld_init(void) {
+ /* initialise hardware */
+ init_board();
+
+ /* wait some time */
+ chThdSleepMilliseconds(50);
+
+ write_cmd(0x38);
+ chThdSleepMilliseconds(64);
+
+ displaycontrol = DISPLAY_ON | CURSOR_ON | CURSOR_BLINK; // The default displaycontrol
+ write_cmd(0x08 | displaycontrol);
+ chThdSleepMicroseconds(50);
+
+ write_cmd(0x01); // Clear the screen
+ chThdSleepMilliseconds(5);
+
+ write_cmd(0x06);
+ chThdSleepMicroseconds(50);
+
+ return TRUE;
+}
+
+void tdisp_lld_clear(void) {
+ write_cmd(0x01);
+}
+
+void tdisp_lld_draw_char(char c) {
+ write_data(c);
+}
+
+void tdisp_lld_set_cursor(coord_t col, coord_t row) {
+ static const uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
+
+ /*
+ * Short-cut:
+ *
+ * If x and y = 0 then use the home command.
+ *
+ * Note: There is probably no advantage as both commands are a single byte
+ */
+// if (col == 0 && row == 0) {
+// write_cmd(0x02);
+// return;
+// }
+
+ write_cmd(0x80 | (col + row_offsets[row]));
+}
+
+void tdisp_lld_create_char(uint8_t address, uint8_t *charmap) {
+ int i;
+
+ write_cmd(0x40 | (address << 3));
+ for(i = 0; i < CUSTOM_CHAR_YBITS; i++)
+ write_data(charmap[i]);
+}
+
+void tdisp_lld_control(uint16_t what, void *value) {
+ switch(what) {
+ case TDISP_CTRL_BACKLIGHT:
+ if ((uint8_t)value)
+ displaycontrol |= DISPLAY_ON;
+ else
+ displaycontrol &= ~DISPLAY_ON;
+ write_cmd(0x08 | displaycontrol);
+ break;
+ case TDISP_CTRL_CURSOR:
+ switch((cursorshape)value) {
+ case cursorOff:
+ displaycontrol &= ~CURSOR_ON;
+ break;
+ case cursorBlock:
+ case cursorUnderline:
+ case cursorBar:
+ displaycontrol = (displaycontrol | CURSOR_ON) & ~CURSOR_BLINK;
+ break;
+ case cursorBlinkingBlock:
+ case cursorBlinkingUnderline:
+ case cursorBlinkingBar:
+ default:
+ displaycontrol |= (CURSOR_ON | CURSOR_BLINK);
+ break;
+ }
+ write_cmd(0x08 | displaycontrol);
+ break;
+ }
+}
+
+#endif /* GFX_USE_TDISP */
+/** @} */
+
diff --git a/drivers/tdisp/HD44780/tdisp_lld_board_example.h b/drivers/tdisp/HD44780/tdisp_lld_board_example.h
index 37463d37..1b41f0c3 100644
--- a/drivers/tdisp/HD44780/tdisp_lld_board_example.h
+++ b/drivers/tdisp/HD44780/tdisp_lld_board_example.h
@@ -1,48 +1,61 @@
-/*
- 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
-
-static void init_board(void) {
- /* Code here */
- #error "tdispHD44780: You must supply a definition for init_board for your board"
-}
-
-static void write_cmd(uint8_t data) {
- /* Code here */
- #error "tdispHD44780: You must supply a definition for write_cmd for your board"
-}
-
-static void write_data(uint8_t data) {
- /* Code here */
- #error "tdispHD44780: You must supply a definition for write_data for your board"
-}
-
-#endif /* _TDISP_LLD_BOARD_H */
-/** @} */
+/*
+ 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
+
+/**
+ * The board may override the default display size.
+ * Uncomment the below if your board needs a non-standard size.
+ */
+/*
+#ifndef TDISP_COLUMNS
+ #define TDISP_COLUMNS 16
+#endif
+#ifndef TDISP_ROWS
+ #define TDISP_ROWS 2
+#endif
+*/
+
+static void init_board(void) {
+ /* Code here */
+ #error "tdispHD44780: You must supply a definition for init_board for your board"
+}
+
+static void write_cmd(uint8_t data) {
+ /* Code here */
+ #error "tdispHD44780: You must supply a definition for write_cmd for your board"
+}
+
+static void write_data(uint8_t data) {
+ /* Code here */
+ #error "tdispHD44780: You must supply a definition for write_data for your board"
+}
+
+#endif /* _TDISP_LLD_BOARD_H */
+/** @} */
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