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101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
/*
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* Copyright (C) 2023 Gunar Schorcht
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#if !DOXYGEN /* hide from documentation */
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/**
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* @ingroup drivers_lcd
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*
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* @brief GPIO-driven low-level parallel interface implementation
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*
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* @{
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* @file
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* @author Gunar Schorcht <gunar@schorcht.net>
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*/
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#ifndef LCD_LL_PAR_GPIO_H
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#define LCD_LL_PAR_GPIO_H
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#include <assert.h>
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#include "lcd.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Initialize the GPIOs of the GPIO-driven low-level parallel interface
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*
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* @param[in] dev device descriptor
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*/
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void lcd_ll_par_gpio_init(lcd_t *dev);
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/**
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* @brief Set the direction of the data GPIOs of the low-level parallel interface
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*
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* @param[in] dev device descriptor
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* @param[in] output set to output mode if true and to input mode otherwise
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*/
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void lcd_ll_par_gpio_set_data_dir(lcd_t *dev, bool output);
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/**
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* @brief Write command using the MCU-driven low-level parallel interface
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*
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* @param[in] dev device descriptor
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* @param[in] cmd command
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* @param[in] cont operation is continued
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*/
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void lcd_ll_par_gpio_cmd_start(lcd_t *dev, uint8_t cmd, bool cont);
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/**
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* @brief Write a byte to the GPIO-driven low-level parallel interface
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*
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* @param[in] dev device descriptor
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* @param[in] cont operation is continued
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* @param[in] out byte to be written
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*/
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void lcd_ll_par_gpio_write_byte(lcd_t *dev, bool cont, uint8_t out);
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/**
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* @brief Write a word to the GPIO-driven low-level parallel interface
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*
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* @param[in] dev device descriptor
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* @param[in] cont operation is continued
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* @param[in] out word to be written
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*/
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void lcd_ll_par_gpio_write_word(lcd_t *dev, bool cont, uint16_t out);
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/**
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* @brief Read a byte from the GPIO-driven low-level parallel interface
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*
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* @param[in] dev device descriptor
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* @param[in] cont operation is continued
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*
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* @return read byte
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*/
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uint8_t lcd_ll_par_gpio_read_byte(lcd_t *dev, bool cont);
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/**
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* @brief Read a word from the GPIO-driven low-level parallel interface
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*
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* @param[in] dev device descriptor
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* @param[in] cont operation is continued
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*
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* @return read word
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*/
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uint16_t lcd_ll_par_gpio_read_word(lcd_t *dev, bool cont);
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#ifdef __cplusplus
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}
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#endif
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#endif /* LCD_LL_PAR_GPIO_H */
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/** @} */
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#endif /* !DOXYGEN */
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