mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
drivers/lcd: move GPIO low-level interface to separate file
This commit is contained in:
Gunar Schorcht
parent
a73ff74b5a
commit
0353e05bc3
100
drivers/lcd/include/lcd_ll_par_gpio.h
Normal file
100
drivers/lcd/include/lcd_ll_par_gpio.h
Normal file
@ -0,0 +1,100 @@
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/*
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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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@ -34,6 +34,7 @@
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#include "lcd.h"
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#include "lcd_internal.h"
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#include "lcd_ll_par_gpio.h"
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#define ENABLE_DEBUG 0
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#include "debug.h"
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@ -42,125 +43,26 @@
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static void lcd_ll_par_write_byte(lcd_t *dev, bool cont, uint8_t out)
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{
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if (gpio_is_valid(dev->params->cs_pin)) {
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gpio_clear(dev->params->cs_pin);
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}
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gpio_clear(dev->params->wrx_pin);
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gpio_write(dev->params->d0_pin, out & 0x01);
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gpio_write(dev->params->d1_pin, out & 0x02);
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gpio_write(dev->params->d2_pin, out & 0x04);
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gpio_write(dev->params->d3_pin, out & 0x08);
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gpio_write(dev->params->d4_pin, out & 0x10);
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gpio_write(dev->params->d5_pin, out & 0x20);
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gpio_write(dev->params->d6_pin, out & 0x40);
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gpio_write(dev->params->d7_pin, out & 0x80);
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gpio_set(dev->params->wrx_pin);
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if (gpio_is_valid(dev->params->cs_pin) && !cont) {
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gpio_set(dev->params->cs_pin);
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};
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lcd_ll_par_gpio_write_byte(dev, cont, out);
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}
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static uint8_t lcd_ll_par_read_byte(lcd_t *dev, bool cont)
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{
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uint8_t in = 0;
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if (gpio_is_valid(dev->params->cs_pin)) {
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gpio_clear(dev->params->cs_pin);
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}
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gpio_clear(dev->params->rdx_pin);
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in |= gpio_read(dev->params->d0_pin) ? 0x01 : 0;
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in |= gpio_read(dev->params->d1_pin) ? 0x02 : 0;
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in |= gpio_read(dev->params->d2_pin) ? 0x04 : 0;
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in |= gpio_read(dev->params->d3_pin) ? 0x08 : 0;
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in |= gpio_read(dev->params->d4_pin) ? 0x10 : 0;
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in |= gpio_read(dev->params->d5_pin) ? 0x20 : 0;
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in |= gpio_read(dev->params->d6_pin) ? 0x40 : 0;
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in |= gpio_read(dev->params->d7_pin) ? 0x80 : 0;
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gpio_set(dev->params->rdx_pin);
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if (gpio_is_valid(dev->params->cs_pin) && !cont) {
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gpio_set(dev->params->cs_pin);
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};
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return in;
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return lcd_ll_par_gpio_read_byte(dev, cont);
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}
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#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
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static void lcd_ll_par_write_word(lcd_t *dev, bool cont, uint16_t out)
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{
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if (gpio_is_valid(dev->params->cs_pin)) {
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gpio_clear(dev->params->cs_pin);
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}
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gpio_clear(dev->params->wrx_pin);
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gpio_write(dev->params->d0_pin, out & 0x0001);
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gpio_write(dev->params->d1_pin, out & 0x0002);
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gpio_write(dev->params->d2_pin, out & 0x0004);
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gpio_write(dev->params->d3_pin, out & 0x0008);
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gpio_write(dev->params->d4_pin, out & 0x0010);
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gpio_write(dev->params->d5_pin, out & 0x0020);
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gpio_write(dev->params->d6_pin, out & 0x0040);
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gpio_write(dev->params->d7_pin, out & 0x0080);
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gpio_write(dev->params->d8_pin, out & 0x0100);
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gpio_write(dev->params->d9_pin, out & 0x0200);
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gpio_write(dev->params->d10_pin, out & 0x0400);
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gpio_write(dev->params->d11_pin, out & 0x0800);
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gpio_write(dev->params->d12_pin, out & 0x1000);
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gpio_write(dev->params->d13_pin, out & 0x2000);
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gpio_write(dev->params->d14_pin, out & 0x4000);
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gpio_write(dev->params->d15_pin, out & 0x8000);
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gpio_set(dev->params->wrx_pin);
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if (gpio_is_valid(dev->params->cs_pin) && !cont) {
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gpio_set(dev->params->cs_pin);
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};
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lcd_ll_par_gpio_write_word(dev, cont, out);
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}
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static uint16_t lcd_ll_par_read_word(lcd_t *dev, bool cont)
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{
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uint16_t in = 0;
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if (gpio_is_valid(dev->params->cs_pin)) {
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gpio_clear(dev->params->cs_pin);
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}
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gpio_clear(dev->params->rdx_pin);
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in |= gpio_read(dev->params->d0_pin) ? 0x0001 : 0;
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in |= gpio_read(dev->params->d1_pin) ? 0x0002 : 0;
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in |= gpio_read(dev->params->d2_pin) ? 0x0004 : 0;
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in |= gpio_read(dev->params->d3_pin) ? 0x0008 : 0;
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in |= gpio_read(dev->params->d4_pin) ? 0x0010 : 0;
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in |= gpio_read(dev->params->d5_pin) ? 0x0020 : 0;
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in |= gpio_read(dev->params->d6_pin) ? 0x0040 : 0;
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in |= gpio_read(dev->params->d7_pin) ? 0x0080 : 0;
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in |= gpio_read(dev->params->d8_pin) ? 0x01000 : 0;
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in |= gpio_read(dev->params->d9_pin) ? 0x02000 : 0;
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in |= gpio_read(dev->params->d10_pin) ? 0x0400 : 0;
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in |= gpio_read(dev->params->d11_pin) ? 0x0800 : 0;
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in |= gpio_read(dev->params->d12_pin) ? 0x1000 : 0;
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in |= gpio_read(dev->params->d13_pin) ? 0x2000 : 0;
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in |= gpio_read(dev->params->d14_pin) ? 0x4000 : 0;
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in |= gpio_read(dev->params->d15_pin) ? 0x8000 : 0;
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gpio_set(dev->params->rdx_pin);
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if (gpio_is_valid(dev->params->cs_pin) && !cont) {
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gpio_set(dev->params->cs_pin);
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};
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return in;
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return lcd_ll_par_gpio_read_word(dev, cont);
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}
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#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
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static void lcd_ll_par_write_bytes(lcd_t *dev, bool cont,
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@ -275,52 +177,14 @@ static inline void lcd_ll_read_bytes(lcd_t *dev, bool cont,
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/* MCU 8080 8-/16-bit parallel interface is used */
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/* switch GPIO mode to input */
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gpio_init(dev->params->d0_pin, GPIO_IN);
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gpio_init(dev->params->d1_pin, GPIO_IN);
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gpio_init(dev->params->d2_pin, GPIO_IN);
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gpio_init(dev->params->d3_pin, GPIO_IN);
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gpio_init(dev->params->d4_pin, GPIO_IN);
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gpio_init(dev->params->d5_pin, GPIO_IN);
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gpio_init(dev->params->d6_pin, GPIO_IN);
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gpio_init(dev->params->d7_pin, GPIO_IN);
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#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
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if (dev->params->mode == LCD_IF_PARALLEL_16BIT) {
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gpio_init(dev->params->d8_pin, GPIO_IN);
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gpio_init(dev->params->d9_pin, GPIO_IN);
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gpio_init(dev->params->d10_pin, GPIO_IN);
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gpio_init(dev->params->d11_pin, GPIO_IN);
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gpio_init(dev->params->d12_pin, GPIO_IN);
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gpio_init(dev->params->d13_pin, GPIO_IN);
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gpio_init(dev->params->d14_pin, GPIO_IN);
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gpio_init(dev->params->d15_pin, GPIO_IN);
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}
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#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
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lcd_ll_par_gpio_set_data_dir(dev, false);
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/* Dummy read */
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lcd_ll_par_read_byte(dev, true);
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lcd_ll_par_read_bytes(dev, cont, data, len);
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/* switch GPIO mode back to output */
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gpio_init(dev->params->d0_pin, GPIO_OUT);
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gpio_init(dev->params->d1_pin, GPIO_OUT);
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gpio_init(dev->params->d2_pin, GPIO_OUT);
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gpio_init(dev->params->d3_pin, GPIO_OUT);
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gpio_init(dev->params->d4_pin, GPIO_OUT);
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gpio_init(dev->params->d5_pin, GPIO_OUT);
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gpio_init(dev->params->d6_pin, GPIO_OUT);
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gpio_init(dev->params->d7_pin, GPIO_OUT);
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#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
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if (dev->params->mode == LCD_IF_PARALLEL_16BIT) {
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gpio_init(dev->params->d8_pin, GPIO_OUT);
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gpio_init(dev->params->d9_pin, GPIO_OUT);
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gpio_init(dev->params->d10_pin, GPIO_OUT);
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gpio_init(dev->params->d11_pin, GPIO_OUT);
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gpio_init(dev->params->d12_pin, GPIO_OUT);
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gpio_init(dev->params->d13_pin, GPIO_OUT);
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gpio_init(dev->params->d14_pin, GPIO_OUT);
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gpio_init(dev->params->d15_pin, GPIO_OUT);
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}
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#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
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lcd_ll_par_gpio_set_data_dir(dev, true);
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#else
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assert(false);
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#endif
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@ -331,9 +195,18 @@ static inline void lcd_ll_read_bytes(lcd_t *dev, bool cont,
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static void lcd_ll_cmd_start(lcd_t *dev, uint8_t cmd, bool cont)
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{
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gpio_clear(dev->params->dcx_pin);
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lcd_ll_write_byte(dev, cont, cmd);
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gpio_set(dev->params->dcx_pin);
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#if IS_USED(MODULE_LCD_PARALLEL)
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if (dev->params->mode != LCD_IF_SPI) {
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lcd_ll_par_gpio_cmd_start(dev, cmd, cont);
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}
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else {
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#endif
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gpio_clear(dev->params->dcx_pin);
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lcd_ll_write_byte(dev, cont, cmd);
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gpio_set(dev->params->dcx_pin);
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#if IS_USED(MODULE_LCD_PARALLEL)
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}
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#endif
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#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
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/* only the RAMRD and RAMRDC commands use 16-bit data access */
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@ -479,58 +352,7 @@ int lcd_init(lcd_t *dev, const lcd_params_t *params)
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else {
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#endif
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#if IS_USED(MODULE_LCD_PARALLEL)
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/* MCU 8080 8-/16-bit parallel interface is used */
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if (gpio_is_valid(dev->params->cs_pin)) {
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gpio_init(dev->params->cs_pin, GPIO_OUT);
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gpio_set(dev->params->cs_pin);
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}
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assert(gpio_is_valid(dev->params->wrx_pin));
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gpio_init(dev->params->wrx_pin, GPIO_OUT);
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gpio_set(dev->params->wrx_pin);
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if (gpio_is_valid(dev->params->rdx_pin)) {
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gpio_init(dev->params->rdx_pin, GPIO_OUT);
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gpio_set(dev->params->rdx_pin);
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}
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assert(gpio_is_valid(dev->params->d0_pin));
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assert(gpio_is_valid(dev->params->d1_pin));
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assert(gpio_is_valid(dev->params->d2_pin));
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assert(gpio_is_valid(dev->params->d3_pin));
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assert(gpio_is_valid(dev->params->d4_pin));
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assert(gpio_is_valid(dev->params->d5_pin));
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assert(gpio_is_valid(dev->params->d6_pin));
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assert(gpio_is_valid(dev->params->d7_pin));
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gpio_init(dev->params->d0_pin, GPIO_OUT);
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gpio_init(dev->params->d1_pin, GPIO_OUT);
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gpio_init(dev->params->d2_pin, GPIO_OUT);
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gpio_init(dev->params->d3_pin, GPIO_OUT);
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gpio_init(dev->params->d4_pin, GPIO_OUT);
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gpio_init(dev->params->d5_pin, GPIO_OUT);
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gpio_init(dev->params->d6_pin, GPIO_OUT);
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gpio_init(dev->params->d7_pin, GPIO_OUT);
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#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
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if (dev->params->mode == LCD_IF_PARALLEL_16BIT) {
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assert(gpio_is_valid(dev->params->d8_pin));
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assert(gpio_is_valid(dev->params->d9_pin));
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assert(gpio_is_valid(dev->params->d10_pin));
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assert(gpio_is_valid(dev->params->d11_pin));
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assert(gpio_is_valid(dev->params->d12_pin));
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assert(gpio_is_valid(dev->params->d13_pin));
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assert(gpio_is_valid(dev->params->d14_pin));
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assert(gpio_is_valid(dev->params->d15_pin));
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gpio_init(dev->params->d8_pin, GPIO_OUT);
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gpio_init(dev->params->d9_pin, GPIO_OUT);
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gpio_init(dev->params->d10_pin, GPIO_OUT);
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gpio_init(dev->params->d11_pin, GPIO_OUT);
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gpio_init(dev->params->d12_pin, GPIO_OUT);
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gpio_init(dev->params->d13_pin, GPIO_OUT);
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gpio_init(dev->params->d14_pin, GPIO_OUT);
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gpio_init(dev->params->d15_pin, GPIO_OUT);
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}
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dev->word_access = false;
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#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
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lcd_ll_par_gpio_init(dev);
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#else
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assert(false);
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#endif
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246
drivers/lcd/lcd_ll_par_gpio.c
Normal file
246
drivers/lcd/lcd_ll_par_gpio.c
Normal file
@ -0,0 +1,246 @@
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/*
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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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/**
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* @ingroup drivers_lcd
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* @{
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*
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* @file
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||||
* @brief GPIO-driven low-level parallel interface implementation
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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*
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* @}
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*/
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#include <assert.h>
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#include "lcd.h"
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#include "lcd_ll_par_gpio.h"
|
||||
#include "periph/gpio.h"
|
||||
|
||||
#define ENABLE_DEBUG 0
|
||||
#include "debug.h"
|
||||
|
||||
#if IS_USED(MODULE_LCD_PARALLEL)
|
||||
|
||||
void lcd_ll_par_gpio_init(lcd_t *dev)
|
||||
{
|
||||
DEBUG("[lcd] %s\n", __func__);
|
||||
|
||||
/* MCU 8080 8-/16-bit parallel interface is used */
|
||||
assert(gpio_is_valid(dev->params->dcx_pin));
|
||||
gpio_init(dev->params->dcx_pin, GPIO_OUT);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin)) {
|
||||
gpio_init(dev->params->cs_pin, GPIO_OUT);
|
||||
gpio_set(dev->params->cs_pin);
|
||||
}
|
||||
|
||||
assert(gpio_is_valid(dev->params->wrx_pin));
|
||||
gpio_init(dev->params->wrx_pin, GPIO_OUT);
|
||||
gpio_set(dev->params->wrx_pin);
|
||||
|
||||
if (gpio_is_valid(dev->params->rdx_pin)) {
|
||||
gpio_init(dev->params->rdx_pin, GPIO_OUT);
|
||||
gpio_set(dev->params->rdx_pin);
|
||||
}
|
||||
|
||||
assert(gpio_is_valid(dev->params->d0_pin));
|
||||
assert(gpio_is_valid(dev->params->d1_pin));
|
||||
assert(gpio_is_valid(dev->params->d2_pin));
|
||||
assert(gpio_is_valid(dev->params->d3_pin));
|
||||
assert(gpio_is_valid(dev->params->d4_pin));
|
||||
assert(gpio_is_valid(dev->params->d5_pin));
|
||||
assert(gpio_is_valid(dev->params->d6_pin));
|
||||
assert(gpio_is_valid(dev->params->d7_pin));
|
||||
#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
|
||||
if (dev->params->mode == LCD_IF_PARALLEL_16BIT) {
|
||||
assert(gpio_is_valid(dev->params->d8_pin));
|
||||
assert(gpio_is_valid(dev->params->d9_pin));
|
||||
assert(gpio_is_valid(dev->params->d10_pin));
|
||||
assert(gpio_is_valid(dev->params->d11_pin));
|
||||
assert(gpio_is_valid(dev->params->d12_pin));
|
||||
assert(gpio_is_valid(dev->params->d13_pin));
|
||||
assert(gpio_is_valid(dev->params->d14_pin));
|
||||
assert(gpio_is_valid(dev->params->d15_pin));
|
||||
}
|
||||
dev->word_access = false;
|
||||
#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
|
||||
|
||||
/* initialize all data GPIOs as outputs */
|
||||
lcd_ll_par_gpio_set_data_dir(dev, true);
|
||||
}
|
||||
|
||||
void lcd_ll_par_gpio_set_data_dir(lcd_t *dev, bool output)
|
||||
{
|
||||
DEBUG("[lcd] %s %u\n", __func__, output);
|
||||
|
||||
gpio_init(dev->params->d0_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d1_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d2_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d3_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d4_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d5_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d6_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d7_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
|
||||
if (dev->params->mode == LCD_IF_PARALLEL_16BIT) {
|
||||
gpio_init(dev->params->d8_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d9_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d10_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d11_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d12_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d13_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d14_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
gpio_init(dev->params->d15_pin, output ? GPIO_OUT : GPIO_IN);
|
||||
}
|
||||
#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
|
||||
}
|
||||
|
||||
void lcd_ll_par_gpio_cmd_start(lcd_t *dev, uint8_t cmd, bool cont)
|
||||
{
|
||||
DEBUG("[lcd] %s %02x\n", __func__, cmd);
|
||||
|
||||
gpio_clear(dev->params->dcx_pin);
|
||||
lcd_ll_par_gpio_write_byte(dev, cont, cmd);
|
||||
gpio_set(dev->params->dcx_pin);
|
||||
}
|
||||
|
||||
void lcd_ll_par_gpio_write_byte(lcd_t *dev, bool cont, uint8_t out)
|
||||
{
|
||||
DEBUG("[lcd] %s %02x\n", __func__, out);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin)) {
|
||||
gpio_clear(dev->params->cs_pin);
|
||||
}
|
||||
|
||||
gpio_clear(dev->params->wrx_pin);
|
||||
|
||||
gpio_write(dev->params->d0_pin, out & 0x01);
|
||||
gpio_write(dev->params->d1_pin, out & 0x02);
|
||||
gpio_write(dev->params->d2_pin, out & 0x04);
|
||||
gpio_write(dev->params->d3_pin, out & 0x08);
|
||||
gpio_write(dev->params->d4_pin, out & 0x10);
|
||||
gpio_write(dev->params->d5_pin, out & 0x20);
|
||||
gpio_write(dev->params->d6_pin, out & 0x40);
|
||||
gpio_write(dev->params->d7_pin, out & 0x80);
|
||||
|
||||
gpio_set(dev->params->wrx_pin);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin) && !cont) {
|
||||
gpio_set(dev->params->cs_pin);
|
||||
};
|
||||
}
|
||||
|
||||
uint8_t lcd_ll_par_gpio_read_byte(lcd_t *dev, bool cont)
|
||||
{
|
||||
uint8_t in = 0;
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin)) {
|
||||
gpio_clear(dev->params->cs_pin);
|
||||
}
|
||||
|
||||
gpio_clear(dev->params->rdx_pin);
|
||||
|
||||
in |= gpio_read(dev->params->d0_pin) ? 0x01 : 0;
|
||||
in |= gpio_read(dev->params->d1_pin) ? 0x02 : 0;
|
||||
in |= gpio_read(dev->params->d2_pin) ? 0x04 : 0;
|
||||
in |= gpio_read(dev->params->d3_pin) ? 0x08 : 0;
|
||||
in |= gpio_read(dev->params->d4_pin) ? 0x10 : 0;
|
||||
in |= gpio_read(dev->params->d5_pin) ? 0x20 : 0;
|
||||
in |= gpio_read(dev->params->d6_pin) ? 0x40 : 0;
|
||||
in |= gpio_read(dev->params->d7_pin) ? 0x80 : 0;
|
||||
|
||||
gpio_set(dev->params->rdx_pin);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin) && !cont) {
|
||||
gpio_set(dev->params->cs_pin);
|
||||
};
|
||||
|
||||
DEBUG("[lcd] %s %02x\n", __func__, in);
|
||||
|
||||
return in;
|
||||
}
|
||||
|
||||
#if IS_USED(MODULE_LCD_PARALLEL_16BIT)
|
||||
|
||||
void lcd_ll_par_gpio_write_word(lcd_t *dev, bool cont, uint16_t out)
|
||||
{
|
||||
DEBUG("[lcd] %s %04x\n", __func__, out);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin)) {
|
||||
gpio_clear(dev->params->cs_pin);
|
||||
}
|
||||
|
||||
gpio_clear(dev->params->wrx_pin);
|
||||
|
||||
gpio_write(dev->params->d0_pin, out & 0x0001);
|
||||
gpio_write(dev->params->d1_pin, out & 0x0002);
|
||||
gpio_write(dev->params->d2_pin, out & 0x0004);
|
||||
gpio_write(dev->params->d3_pin, out & 0x0008);
|
||||
gpio_write(dev->params->d4_pin, out & 0x0010);
|
||||
gpio_write(dev->params->d5_pin, out & 0x0020);
|
||||
gpio_write(dev->params->d6_pin, out & 0x0040);
|
||||
gpio_write(dev->params->d7_pin, out & 0x0080);
|
||||
gpio_write(dev->params->d8_pin, out & 0x0100);
|
||||
gpio_write(dev->params->d9_pin, out & 0x0200);
|
||||
gpio_write(dev->params->d10_pin, out & 0x0400);
|
||||
gpio_write(dev->params->d11_pin, out & 0x0800);
|
||||
gpio_write(dev->params->d12_pin, out & 0x1000);
|
||||
gpio_write(dev->params->d13_pin, out & 0x2000);
|
||||
gpio_write(dev->params->d14_pin, out & 0x4000);
|
||||
gpio_write(dev->params->d15_pin, out & 0x8000);
|
||||
|
||||
gpio_set(dev->params->wrx_pin);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin) && !cont) {
|
||||
gpio_set(dev->params->cs_pin);
|
||||
};
|
||||
}
|
||||
|
||||
uint16_t lcd_ll_par_gpio_read_word(lcd_t *dev, bool cont)
|
||||
{
|
||||
uint16_t in = 0;
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin)) {
|
||||
gpio_clear(dev->params->cs_pin);
|
||||
}
|
||||
|
||||
gpio_clear(dev->params->rdx_pin);
|
||||
|
||||
in |= gpio_read(dev->params->d0_pin) ? 0x0001 : 0;
|
||||
in |= gpio_read(dev->params->d1_pin) ? 0x0002 : 0;
|
||||
in |= gpio_read(dev->params->d2_pin) ? 0x0004 : 0;
|
||||
in |= gpio_read(dev->params->d3_pin) ? 0x0008 : 0;
|
||||
in |= gpio_read(dev->params->d4_pin) ? 0x0010 : 0;
|
||||
in |= gpio_read(dev->params->d5_pin) ? 0x0020 : 0;
|
||||
in |= gpio_read(dev->params->d6_pin) ? 0x0040 : 0;
|
||||
in |= gpio_read(dev->params->d7_pin) ? 0x0080 : 0;
|
||||
in |= gpio_read(dev->params->d8_pin) ? 0x01000 : 0;
|
||||
in |= gpio_read(dev->params->d9_pin) ? 0x02000 : 0;
|
||||
in |= gpio_read(dev->params->d10_pin) ? 0x0400 : 0;
|
||||
in |= gpio_read(dev->params->d11_pin) ? 0x0800 : 0;
|
||||
in |= gpio_read(dev->params->d12_pin) ? 0x1000 : 0;
|
||||
in |= gpio_read(dev->params->d13_pin) ? 0x2000 : 0;
|
||||
in |= gpio_read(dev->params->d14_pin) ? 0x4000 : 0;
|
||||
in |= gpio_read(dev->params->d15_pin) ? 0x8000 : 0;
|
||||
|
||||
gpio_set(dev->params->rdx_pin);
|
||||
|
||||
if (gpio_is_valid(dev->params->cs_pin) && !cont) {
|
||||
gpio_set(dev->params->cs_pin);
|
||||
};
|
||||
|
||||
DEBUG("[lcd] %s %04x\n", __func__, in);
|
||||
|
||||
return in;
|
||||
}
|
||||
#endif /* IS_USED(MODULE_LCD_PARALLEL_16BIT) */
|
||||
|
||||
#endif /* IS_USED(MODULE_LCD_PARALLEL) */
|
||||
Loading…
Reference in New Issue
Block a user