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author | Joel Bodenmann <joel@unormal.org> | 2013-01-11 15:04:40 +0100 |
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committer | Joel Bodenmann <joel@unormal.org> | 2013-01-11 15:04:40 +0100 |
commit | 66bb4ecb853fd3a35fd3154811c70aa1ff316937 (patch) | |
tree | b5044720ce7e590c8bcbc9c6f641ecf0b8055be8 /drivers/tdisp | |
parent | dae721900b75d7b8e78bc35e79c4288934bba79d (diff) | |
parent | 249a1b345f1064957a6fd187fcdfbbcd3c1fecad (diff) | |
download | uGFX-66bb4ecb853fd3a35fd3154811c70aa1ff316937.tar.gz uGFX-66bb4ecb853fd3a35fd3154811c70aa1ff316937.tar.bz2 uGFX-66bb4ecb853fd3a35fd3154811c70aa1ff316937.zip |
Merge branch 'tdisp'
Diffstat (limited to 'drivers/tdisp')
-rw-r--r-- | drivers/tdisp/HD44780/tdisp_lld.c | 90 | ||||
-rw-r--r-- | drivers/tdisp/HD44780/tdisp_lld.mk | 6 | ||||
-rw-r--r-- | drivers/tdisp/HD44780/tdisp_lld_board_example.h | 64 | ||||
-rw-r--r-- | drivers/tdisp/HD44780/tdisp_lld_config.h | 44 |
4 files changed, 204 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..2e152977 --- /dev/null +++ b/drivers/tdisp/HD44780/tdisp_lld.c @@ -0,0 +1,90 @@ +/* + 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; +} + +#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..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 */
+/** @} */
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