lvgl_common.h

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/****************************************************************************
**
** Copyright (C) 2024 MikroElektronika d.o.o.
** Contact: https://www.mikroe.com/contact
**
** This file is part of the mikroSDK package
**
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**
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** file in accordance with the commercial license agreement provided with the
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**
** Alternatively, this file may be used for
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** General Public License version 3 as published by the Free Software
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#ifdef __cplusplus
extern "C"{
#endif
 
#ifndef _LVGL_COMMON_H_
#define _LVGL_COMMON_H_
 
#include "board.h"
#include "drv_port.h"
#include "ili9341_cmd.h"
#include "ili9341_defines.h"
#include "drv_digital_out.h"
#include "touch_controller.h"
 
#ifdef __GNUC__
#include <me_built_in.h>
#endif
 
// quick fix to have proper tft data port passed on
// TODO needs to be handled in SWMIKSDK-1550
#ifdef TFT_LCD_PORT_UNDEFINED_TEMP_FIX
#ifndef LCD_TFT_8BIT_CH0
#define LCD_TFT_8BIT_CH0 TFT_8BIT_DATA_PORT_CH0
#endif
 
#ifndef LCD_TFT_CH0_8BIT_MASK
#define LCD_TFT_CH0_8BIT_MASK TFT_8BIT_DATA_PORT_CH0_MASK
#endif
 
#ifndef LCD_TFT_16BIT_CH0
#define LCD_TFT_16BIT_CH0 TFT_16BIT_DATA_PORT_CH0
#endif
 
#ifndef LCD_TFT_16BIT_CH0_MASK
#define LCD_TFT_16BIT_CH0_MASK TFT_16BIT_DATA_PORT_CH0_MASK
#endif
 
#ifndef LCD_TFT_16BIT_CH1
#define LCD_TFT_16BIT_CH1 TFT_16BIT_DATA_PORT_CH1
#endif
 
#ifndef LCD_TFT_16BIT_CH1_MASK
#define LCD_TFT_16BIT_CH1_MASK TFT_16BIT_DATA_PORT_CH1_MASK
#endif
#endif
// eof quick fix
 
#define set_column() uint16_t start_column = act_x1; \
                     uint16_t end_column = act_x2;
 
#define set_page() uint16_t start_page = act_y1; \
                   uint16_t end_page = act_y2;
 
#define CS_HIGH (digital_out_high( &pin_cs ))
#define CS_LOW  (digital_out_low( &pin_cs ))
#define WR_HIGH (digital_out_high( &pin_wr ))
#define WR_LOW  (digital_out_low( &pin_wr ))
#define DC_HIGH (digital_out_high( &pin_dc ))
#define DC_LOW  (digital_out_low( &pin_dc ))
#define display_deselect() (CS_HIGH)
 
#define check_touchpad() (void)tp_press_detect(&tp); \
                         return (tp.touch.event != TP_EVENT_PRESS_NOT_DET);
 
static digital_out_t pin_cs;
static digital_out_t pin_wr;
static digital_out_t pin_dc;
 
static port_t port;
 
static gl_driver_t display_driver;
 
static tp_drv_t tp_interface;
static tp_t tp;
 
static inline void write_command(uint8_t command)
{
    CS_LOW;
    DC_LOW;
    port_write(&port, command);
    WR_LOW;
    WR_HIGH;
    CS_HIGH;
}
 
static inline void write_param(uint8_t param)
{
    CS_LOW;
    DC_HIGH;
    port_write(&port, param);
    WR_LOW;
    WR_HIGH;
    CS_HIGH;
}
 
static inline void data_8bit_write(uint16_t fill_data)
{
    uint32_t red_value = RED_OF( fill_data );
    uint32_t green_value = GREEN_OF( fill_data );
    uint32_t blue_value = BLUE_OF( fill_data );
 
    port_write(&port, red_value);
    WR_LOW;
    WR_HIGH;
    port_write(&port, green_value);
    WR_LOW;
    WR_HIGH;
    port_write(&port, blue_value);
}
 
static inline void write_array_data(uint16_t *array, uint16_t length)
{
    uint32_t i;
 
    for (i = 0; i < length; i++)
    {
        data_8bit_write(*array);
        WR_LOW;
        WR_HIGH;
        array++;
    }
}
 
static inline void display_configure(void)
{
    // Initialize control pins.
    digital_out_init(&pin_cs, TFT_CS);
    digital_out_init(&pin_dc, TFT_RS);
    digital_out_init(&pin_wr, TFT_WR);
 
    // Initialize data port.
    // Note that MikroE TFT7 boards have only 8-bit connections.
    port_init(&port, LCD_TFT_8BIT_CH0, LCD_TFT_CH0_8BIT_MASK, PIN_DIRECTION_DIGITAL_OUTPUT);
 
    // Initialize touch controller.
    touch_controller_init(&display_driver, TFT_MAX_BACKLIGHT);
 
    // Initialize driver for future use.
    gl_set_driver(&display_driver);
}
 
static inline void frame_start(uint32_t start_column, uint32_t end_column,
                               uint32_t start_page, uint32_t end_page)
{
    write_command( ILI9341_CMD_COLUMN_ADDRESS_SET );
    write_param( Hi( start_column ) );
    write_param( Lo( start_column ) );
    write_param( Hi( end_column ) );
    write_param( Lo( end_column ) );
 
    write_command( ILI9341_CMD_PAGE_ADDRESS_SET );
    write_param( Hi( start_page ) );
    write_param( Lo( start_page ) );
    write_param( Hi( end_page ) );
    write_param( Lo( end_page ) );
 
    write_command( ILI9341_CMD_MEMORY_WRITE );
 
    CS_LOW;
    DC_HIGH;
}
 
static inline void get_touch_coordinates(int16_t *x, int16_t *y)
{
    tp_touch_coord_t touch_item;
 
    tp_press_coordinates(&tp, &touch_item);
 
    (*x) = touch_item.coord_x;
    (*y) = touch_item.coord_y;
}
 
 // tftgroupCommon
 // compgroup
 
#ifdef __cplusplus
}
#endif
 
#endif // _LVGL_COMMON_H_
// ------------------------------------------------------------------------- END