lvgl_esp32_drivers/lvgl_helpers.c

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/**
* @file lvgl_helpers.c
*
*/
/*********************
* INCLUDES
*********************/
#include "sdkconfig.h"
#include "lvgl_helpers.h"
#include "esp_log.h"
#include "lvgl_tft/disp_spi.h"
#include "lvgl_touch/tp_spi.h"
#include "lvgl_spi_conf.h"
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#include "lvgl_i2c/i2c_manager.h"
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
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#include "lvgl.h"
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#else
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#include "lvgl/lvgl.h"
#endif
/*********************
* DEFINES
*********************/
#define TAG "lvgl_helpers"
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/* Interface and driver initialization */
void lvgl_driver_init(void)
{
/* Since LVGL v8 LV_HOR_RES_MAX and LV_VER_RES_MAX are not defined, so
* print it only if they are defined. */
#if (LVGL_VERSION_MAJOR < 8)
ESP_LOGI(TAG, "Display hor size: %d, ver size: %d", LV_HOR_RES_MAX, LV_VER_RES_MAX);
#endif
ESP_LOGI(TAG, "Display buffer size: %d", DISP_BUF_SIZE);
#if defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
ESP_LOGI(TAG, "Initializing SPI master for FT81X");
lvgl_spi_driver_init(TFT_SPI_HOST,
DISP_SPI_MISO, DISP_SPI_MOSI, DISP_SPI_CLK,
SPI_BUS_MAX_TRANSFER_SZ, 1,
DISP_SPI_IO2, DISP_SPI_IO3);
disp_spi_add_device(TFT_SPI_HOST);
disp_driver_init();
#if defined (CONFIG_LV_TOUCH_CONTROLLER_FT81X)
touch_driver_init();
#endif
return;
#endif
#if defined (SHARED_SPI_BUS)
ESP_LOGI(TAG, "Initializing shared SPI master");
lvgl_spi_driver_init(TFT_SPI_HOST,
TP_SPI_MISO, DISP_SPI_MOSI, DISP_SPI_CLK,
SPI_BUS_MAX_TRANSFER_SZ, 1,
-1, -1);
disp_spi_add_device(TFT_SPI_HOST);
tp_spi_add_device(TOUCH_SPI_HOST);
disp_driver_init();
touch_driver_init();
return;
#endif
/* Display controller initialization */
#if defined CONFIG_LV_TFT_DISPLAY_PROTOCOL_SPI
ESP_LOGI(TAG, "Initializing SPI master for display");
lvgl_spi_driver_init(TFT_SPI_HOST,
DISP_SPI_MISO, DISP_SPI_MOSI, DISP_SPI_CLK,
SPI_BUS_MAX_TRANSFER_SZ, 1,
DISP_SPI_IO2, DISP_SPI_IO3);
disp_spi_add_device(TFT_SPI_HOST);
disp_driver_init();
#elif defined (CONFIG_LV_I2C_DISPLAY)
disp_driver_init();
#else
#error "No protocol defined for display controller"
#endif
/* Touch controller initialization */
#if CONFIG_LV_TOUCH_CONTROLLER != TOUCH_CONTROLLER_NONE
#if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_SPI)
ESP_LOGI(TAG, "Initializing SPI master for touch");
lvgl_spi_driver_init(TOUCH_SPI_HOST,
TP_SPI_MISO, TP_SPI_MOSI, TP_SPI_CLK,
0 /* Defaults to 4094 */, 2,
-1, -1);
tp_spi_add_device(TOUCH_SPI_HOST);
touch_driver_init();
#elif defined (CONFIG_LV_I2C_TOUCH)
touch_driver_init();
#elif defined (CONFIG_LV_TOUCH_DRIVER_ADC)
touch_driver_init();
#elif defined (CONFIG_LV_TOUCH_DRIVER_DISPLAY)
touch_driver_init();
#else
#error "No protocol defined for touch controller"
#endif
#else
#endif
}
/* Initialize spi bus master
*
* NOTE: dma_chan type and value changed to int instead of spi_dma_chan_t
* for backwards compatibility with ESP-IDF versions prior v4.3.
*
* We could use the ESP_IDF_VERSION_VAL macro available in the "esp_idf_version.h"
* header available since ESP-IDF v4.
*/
bool lvgl_spi_driver_init(int host,
int miso_pin, int mosi_pin, int sclk_pin,
int max_transfer_sz,
int dma_channel,
int quadwp_pin, int quadhd_pin)
{
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#if defined (SPI_HOST_MAX)
assert((SPI1_HOST <= host) && (SPI_HOST_MAX > host));
#else
assert((SPI1_HOST <= host) && ((SPI3_HOST + 1) > host));
#endif
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const char *spi_names[] = {
"SPI1_HOST", "SPI2_HOST", "SPI3_HOST"
};
ESP_LOGI(TAG, "Configuring SPI host %s", spi_names[host]);
ESP_LOGI(TAG, "MISO pin: %d, MOSI pin: %d, SCLK pin: %d, IO2/WP pin: %d, IO3/HD pin: %d",
miso_pin, mosi_pin, sclk_pin, quadwp_pin, quadhd_pin);
ESP_LOGI(TAG, "Max transfer size: %d (bytes)", max_transfer_sz);
spi_bus_config_t buscfg = {
.miso_io_num = miso_pin,
.mosi_io_num = mosi_pin,
.sclk_io_num = sclk_pin,
.quadwp_io_num = quadwp_pin,
.quadhd_io_num = quadhd_pin,
.max_transfer_sz = max_transfer_sz
};
ESP_LOGI(TAG, "Initializing SPI bus...");
#if defined (CONFIG_IDF_TARGET_ESP32C3)
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dma_channel = SPI_DMA_CH_AUTO;
#endif
esp_err_t ret = spi_bus_initialize(host, &buscfg, (spi_dma_chan_t)dma_channel);
assert(ret == ESP_OK);
return ESP_OK != ret;
}