lvgl_esp32_drivers/lvgl_helpers.h
Carlos Diaz 17eb416ef8
Update helpers and drivers to handle LVGLv7 and v8 versions (#161)
* [lvgl_helpers] Cleanup and misc code cleanup

Checks for SPI_HOST_MAX symbol before using it.

Rename lvgl_driver_init to lvgl_interface_init because it now only initialize
the interface bus for display drivers, we still need to remove the indev
drivers from here.

Use types defined in spi_types.h for spi host (spi_host_device_t) and
spi dma channels (spi_dma_chan_t).

Also add a couple of symbols to avoid using magic numbers

* [lvgl_helpers] Reduce usage of if defined in lvgl_interface_init

* [lvgl_helpers] Fix spi dma channel for ESP-IDF versions <= 4.2

* [examples] Update hello_world to call lvgl_interface_init

* Add lvgl_get_display_buffer_size helper

This helper will allow us to get the calculated display buffer size instead of using a global symbol.

* Implement lvgl_get_display_buffer_size

This API will be used to get the calculation of display buffer size.

* Delete DISP_BUF_SIZE symbols

The same functionality is handled by lvgl_get_display_buffer_size

* Move SPI max transfer size calculation to helper

Use calculate_spi_max_transfer_size to calculate the SPI max transfer size for the SPI master configuration

* Remove SPI_BUS_MAX_TRANSFER_SZ definition

Same functionality is now handled in calculate_spi_max_transfer_size

* Update display buffer size calculation

Use lvgl_get_display_buffer_size helper instead of DISP_BUF_SIZE symbol

* Update example to LVGL v8

Add comments about changes from:
- LVGL v7 to LVGL v8
- Configuration helpers and display drivers

* Update lvgl_helpers.c

* Update sh1107 driver

* Update EVE driver

Check for symbols used in previous implementations before trying to use them
and add a fallback temporary implementation when not found.

The falback implementation isn't tested with hardware.

Symbols:
- DISP_BUF_SIZE
- SPI_TRANSFER_SIZE

* Update uc8151d driver

* Update jd79653a driver

* Update ra8875 driver

* Update il3820.h

Check for LV_HOR_RES_MAX and LV_VER_RES_MAX before trying to use them

* Update lvgl_helpers.c

Check for ESP-IDF version before trying to use spi_dma_chan_t type
2022-01-07 17:22:11 -06:00

61 lines
1.2 KiB
C

/**
* @file lvgl_helpers.h
*/
#ifndef LVGL_HELPERS_H
#define LVGL_HELPERS_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include <stdbool.h>
#include "driver/spi_common.h"
#include "lvgl_spi_conf.h"
#include "lvgl_tft/disp_driver.h"
#include "lvgl_tft/esp_lcd_backlight.h"
#include "lvgl_touch/touch_driver.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
void lvgl_i2c_locking(void* leader);
/* Initialize detected SPI and I2C bus and devices */
void lvgl_interface_init(void);
/* Initialize SPI master */
bool lvgl_spi_driver_init(spi_host_device_t host, int miso_pin, int mosi_pin, int sclk_pin,
int max_transfer_sz, int dma_channel, int quadwp_pin, int quadhd_pin);
/* Initialize display GPIOs, e.g. DC and RST pins */
void display_bsp_init_io(void);
/* Get display buffer size */
size_t lvgl_get_display_buffer_size(void);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* LVGL_HELPERS_H */