pcd8544.h

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/*
 * SPDX-FileCopyrightText: 2015 Freie Universität Berlin
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once

 
#include <stdint.h>
 
#include "periph/gpio.h"
#include "periph/spi.h"
 
#ifdef __cplusplus
 extern "C" {
#endif

#define PCD8544_RES_X                   (84U)   
#define PCD8544_RES_Y                   (48U)   
#define PCD8544_COLS                    (14U)   
#define PCD8544_ROWS                    (6U)    

#define PCD8544_DEFAULT_CONTRAST        (45U)
#define PCD8544_DEFAULT_BIAS            (3U)
#define PCD8544_DEFAULT_TEMPCOEF        (0U)

typedef struct {
    spi_t spi;          
    gpio_t cs;          
    gpio_t reset;       
    gpio_t mode;        
    uint8_t inverted;   
} pcd8544_t;

int pcd8544_init(pcd8544_t *dev, spi_t spi, gpio_t cs,
                 gpio_t reset, gpio_t mode);

void pcd8544_set_contrast(const pcd8544_t *dev, uint8_t contrast);

void pcd8544_set_tempcoef(const pcd8544_t *dev, uint8_t coef);

void pcd8544_set_bias(const pcd8544_t *dev, uint8_t bias);

void pcd8544_write_img(const pcd8544_t *dev, const uint8_t img[]);

void pcd8544_write_c(const pcd8544_t *dev, uint8_t x, uint8_t y, const char c);

void pcd8544_write_s(const pcd8544_t *dev, uint8_t x, uint8_t y, const char* str);

void pcd8544_clear(const pcd8544_t *dev);

void pcd8544_invert(pcd8544_t *dev);

int pcd8544_is_inverted(const pcd8544_t *dev);

void pcd8544_poweron(const pcd8544_t *dev);

void pcd8544_poweroff(const pcd8544_t *dev);

void pcd8544_riot(const pcd8544_t *dev);
 
#ifdef __cplusplus
}
#endif