127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file src/tdisp/tdisp.c
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* @brief TDISP Driver code.
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*
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* @addtogroup TDISP
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#include "gfx.h"
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#if GFX_USE_TDISP || defined(__DOXYGEN__)
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static uint8_t _displaycontrol;
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bool_t tdispInit(void) {
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bool_t ret;
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ret = TDISP_LLD(init)();
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return ret;
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}
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void tdispSetAttributes(uint8_t attributes) {
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switch(attributes) {
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case TDISP_ON:
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_displaycontrol |= 0x04;
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TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
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break;
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case TDISP_OFF:
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_displaycontrol &=~ 0x04;
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TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
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break;
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case TDISP_CURSOR_ON:
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_displaycontrol |= 0x02;
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TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
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break;
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case TDISP_CURSOR_OFF:
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_displaycontrol &=~ 0x02;
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TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
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break;
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case TDISP_CURSOR_BLINK_ON:
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_displaycontrol |= 0x00;
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TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
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break;
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case TDISP_CURSOR_BLINK_OFF:
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_displaycontrol &=~ 0x00;
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TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
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break;
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}
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}
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void tdispClear(void) {
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TDISP_LLD(write_cmd)(0x01);
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}
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void tdispHome(void) {
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TDISP_LLD(write_cmd)(0x02);
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}
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void tdispCreateChar(uint8_t location, char *charmap) {
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uint8_t i;
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/* make sure we don't write somewhere we're not supposed to */
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location &= TDISP_MAX_CUSTOM_CHARS;
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TDISP_LLD(write_cmd)(0x40 | (location << 3));
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for(i = 0; i < 8; i++) {
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TDISP_LLD(write_data)(charmap[i]);
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}
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}
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void tdispGotoXY(coord_t col, coord_t row) {
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uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
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if(row >= TDISP_ROWS)
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row = TDISP_ROWS - 1;
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TDISP_LLD(write_cmd)(0x80 | (col + row_offsets[row]));
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}
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void tdispDrawChar(char c) {
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TDISP_LLD(write_data)(c);
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}
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void tdispDrawString(char *s) {
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char c;
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while(c = *s++)
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tdispDrawChar(c);
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}
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void tdispDrawCharLocation(coord_t col, coord_t row, char c) {
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tdispGotoXY(col, row);
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tdispDrawChar(c);
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}
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void tdispDrawStringLocation(coord_t col, coord_t row, char *s) {
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tdispGotoXY(col, row);
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tdispDrawString(s);
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}
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#endif /* GFX_USE_TDISP */
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/** @} */
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