Update with epdiy last version support

CMakeLists.txt

@@ -1,16 +1,22 @@
 if(ESP_PLATFORM)
 
 file(GLOB SOURCES *.c)
-set(LVGL_INCLUDE_DIRS . lvgl_tft lvgl_touch/L58/include)
+set(LVGL_INCLUDE_DIRS . lvgl_tft)
 list(APPEND SOURCES "lvgl_tft/disp_driver.c")
-list(APPEND SOURCES "lvgl_tft/esp_lcd_backlight.c")
+
+#@todo add SimleInclude macro here
 
 # Include only the source file of the selected
 # display controller.
 if(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9341)
     list(APPEND SOURCES "lvgl_tft/ili9341.c")
 elseif(CONFIG_LV_EPAPER_EPDIY_DISPLAY_CONTROLLER)
-    list(APPEND SOURCES "lvgl_tft/epdiy_epaper.c")
+    list(APPEND SOURCES "lvgl_tft/epdiy_epaper.cpp")
+elseif(CONFIG_LV_EPAPER_CALEPD_DISPLAY_CONTROLLER)
+    list(APPEND SOURCES "lvgl_tft/calepd_epaper.cpp")
+elseif(CONFIG_LV_SHARP_DISPLAY_CONTROLLER)
+    list(APPEND SOURCES "lvgl_tft/sharp_mip.cpp")   
+
 elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481)
     list(APPEND SOURCES "lvgl_tft/ili9481.c")
 elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9486)
@@ -42,10 +48,6 @@ elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_RA8875)
     list(APPEND SOURCES "lvgl_tft/ra8875.c")
 elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_GC9A01)
     list(APPEND SOURCES "lvgl_tft/GC9A01.c")
-elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C)
-    list(APPEND SOURCES "lvgl_tft/ili9163c.c")
-elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544)
-    list(APPEND SOURCES "lvgl_tft/pcd8544.c")
 else()
     message(WARNING "LVGL ESP32 drivers: Display controller not defined.")
 endif()
@@ -66,7 +68,6 @@ if(CONFIG_LV_TOUCH_CONTROLLER)
     elseif(CONFIG_LV_TOUCH_CONTROLLER_FT6X06)
         list(APPEND SOURCES "lvgl_touch/ft6x36.c")
     elseif(CONFIG_LV_TOUCH_CONTROLLER_L58)
-        list(APPEND SOURCES "lvgl_touch/L58/L58Touch.cpp")
         list(APPEND SOURCES "lvgl_touch/l58.cpp")
     elseif(CONFIG_LV_TOUCH_CONTROLLER_STMPE610)
         list(APPEND SOURCES "lvgl_touch/stmpe610.c")
@@ -76,22 +77,20 @@ if(CONFIG_LV_TOUCH_CONTROLLER)
         list(APPEND SOURCES "lvgl_touch/FT81x.c")
     elseif(CONFIG_LV_TOUCH_CONTROLLER_RA8875)
         list(APPEND SOURCES "lvgl_touch/ra8875_touch.c")
-    elseif(CONFIG_LV_TOUCH_CONTROLLER_GT911)
-        list(APPEND SOURCES "lvgl_touch/gt911.c")
     endif()
 
     if(CONFIG_LV_TOUCH_DRIVER_PROTOCOL_SPI)
         list(APPEND SOURCES "lvgl_touch/tp_spi.c")
+    elseif(CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C)
+        list(APPEND SOURCES "lvgl_touch/tp_i2c.c")
     endif()
 endif()
 
-if(CONFIG_LV_I2C)
-    list(APPEND SOURCES "lvgl_i2c/i2c_manager.c")
-endif()
-
 idf_component_register(SRCS ${SOURCES}
                        INCLUDE_DIRS ${LVGL_INCLUDE_DIRS}
-                       REQUIRES lvgl)
+                       REQUIRES epdiy
+                       lvgl CalEPD sharp-lcd
+                       )
                        
 target_compile_definitions(${COMPONENT_LIB} PUBLIC "-DLV_LVGL_H_INCLUDE_SIMPLE")
 

Kconfig

@@ -1,14 +1,2 @@
-menu "LVGL ESP Drivers"
+rsource "lvgl_tft/Kconfig"
-
+rsource "lvgl_touch/Kconfig"
-    rsource "lvgl_tft/Kconfig"
-
-    rsource "lvgl_touch/Kconfig"
-
-endmenu
-
-menu "I2C Port Settings"
-    depends on LV_I2C && !HAVE_I2C_MANAGER
-
-    rsource "lvgl_i2c/Kconfig"
-
-endmenu

README.md

@@ -6,8 +6,6 @@ For a ready to use ESP32 project take look at the [lv_port_esp32](https://github
 - [Supported display controllers](#supported-display-controllers)
 - [Supported indev controllers](#supported-indev-controllers)
 - [Support for predefined development kits](#support-for-predefined-development-kits)
-- [Thread-safe I2C with I2C Manager](#thread-safe-i2c-with-i2c-manager)
-- [Backlight control](#backlight-control)
 
 **NOTE:** You need to set the display horizontal and vertical size, color depth and
 swap of RGB565 color on the LVGL configuration menuconfig (it's not handled automatically).
@@ -19,7 +17,6 @@ swap of RGB565 color on the LVGL configuration menuconfig (it's not handled auto
 | Display Controller                          | Type       | Interface              | Color depth (LV_COLOR_DEPTH) | Swap RGB565 color (LV_COLOR_16_SWAP)   |
 |---------------------------------------------|------------|------------------------|------------------------------|----------------------------------------|
 | ILI9341                                     | TFT        | SPI                    | 16: RGB565                   | Yes                                    |
-| ILI9163C                                    | TFT        | SPI                    | 16: RGB565                   | Yes                                    |
 | ILI9486                                     | TFT        | SPI                    | 16: RGB565                   | Yes                                    |
 | ILI9488                                     | TFT        | SPI                    | 16: RGB565                   | No                                     |
 | HX8357B/HX8357D                             | TFT        | SPI                    | 16: RGB565                   | Yes                                    |
@@ -30,25 +27,17 @@ swap of RGB565 color on the LVGL configuration menuconfig (it's not handled auto
 | RA8875                                      | TFT        | SPI                    | 16: RGB565                   | Yes                                    |
 | SH1107                                      | Monochrome | SPI                    | 1: 1byte per pixel           | No                                     |
 | SSD1306                                     | Monochrome | I2C                    | 1: 1byte per pixel           | No                                     |
-| PCD8544                                     | Monochrome | SPI                    | 1: 1byte per pixel           | No                                     |
 | IL3820                                      | e-Paper    | SPI                    | 1: 1byte per pixel           | No                                     |
 | UC8151D/ GoodDisplay GDEW0154M10 DES        | e-Paper    | SPI                    | 1: 1byte per pixel           | No                                     |
 | FitiPower JD79653A/ GoodDisplay GDEW0154M09 | e-Paper    | SPI                    | 1: 1byte per pixel           | No                                     |
-| EPDiy supported epaper (needs PCB) | e-Paper    | Parallel               | 4: RGB232 16 grayscales      | No   
-
-Please note that EPDiy supported epapers include also the Lilygo EPD47 that comes with it's own PCB and ESP32 WROVER. Is possible also to build your own EPDiy PCB, please find the [project KiCad source files, schematics, and documentation here](https://github.com/vroland/epdiy/tree/master/hardware/epaper-breakout). 
-To use an EPDiy supported epaper you need to add it [as a component using git submodules](https://github.com/martinberlin/lv_port_esp32-epaper/tree/master/components) and also update the CMakeLists of lvgl component to [REQUIRE that library](https://github.com/martinberlin/lv_port_esp32-epaper/wiki).
-
-    git submodule add https://github.com/martinberlin/epdiy-rotation.git components/epd_driver
 
 ## Supported indev controllers
 
 - XPT2046
-- FT3236, FT6X36
+- FT3236
-- FT6206 controllers should work as well (not tested)
+- other FT6X36 or the FT6206 controllers should work as well (not tested)
 - STMPE610
 - FT81x (Single, Dual, and Quad SPI)
-- L58 touch component hook (Used in Lilygo EPD47 parallel with EPDiy driver)
 
 If your display or input device (touch) controller is not supported consider contributing to this repo by
 adding support to it! [Contribute controller support](CONTRIBUTE_CONTROLLER_SUPPORT.md)
@@ -62,7 +51,6 @@ and sets the gpio numbers for the interface.
 |---------------------------|-----------------------|-----------|-----------|-----------|
 | ESP Wrover Kit v4.1       | ILI9341               | SPI       | 240       | 320       |
 | M5Stack                   | ILI9341               | SPI       | 240       | 320       |
-| M5Stack Core2             | ILI9341               | SPI       | 240       | 320       |
 | M5Stick                   | SH1107                | SPI       | -         | -         |
 | M5StickC                  | ST7735S               | SPI       | 80        | 160       |
 | Adafruit 3.5 Featherwing  | HX8357                | SPI       | 480       | 320       |
@@ -75,27 +63,3 @@ and sets the gpio numbers for the interface.
 
 **NOTE:** See [Supported display controllers](#supported-display-controllers) for more information on display configuration.
 **NOTE:** See [Supported indev controllers](#supported-indev-controllers) for more information about indev configuration.
-
-
-## Thread-safe I2C with I2C Manager
-
-LVGL can use I2C to read from a touch sensor or write to a display, possibly
-many times a second. Meanwhile, other tasks may also want to read from i2c
-devices on the same bus. I2C using the ESP-IDF is not thread-safe.
-
-I2C Manager (`i2c_manager`) is a component that will let code in multiple threads
-talk to devices on the I2C ports without getting in each other's way. These drivers
-use a built-in copy of I2C Manager to talk to the I2C port, but you can also use 
-the I2C Manager component itself and have others play nice with LVGL and vice-versa.
-[Click here](i2c_manager/README.md) for details.
-
-
-## Backlight control
-
-Control of LCD's backlight is provided by separate module that is independent from the display driver.
-Configuration of the backlight controller can be found in menuconfig `LVGL ESP Drivers -> LVGL TFT Display controller`.
-
-There are three modes of operation:
-1. Off - No backlight control
-2. Switch - Allows ON/OFF control
-3. PWM - Allows brightness control (by Pulse-Width-Modulated signal)

component.mk

@@ -1,7 +1,7 @@
 # LVGL ESP32 drivers
 
 # Define sources and include dirs
-COMPONENT_SRCDIRS := . lvgl_tft lvgl_touch lvgl_i2c
+COMPONENT_SRCDIRS := . lvgl_tft lvgl_touch
 COMPONENT_ADD_INCLUDEDIRS := .
 
 # LVGL is supposed to be used as a ESP-IDF component
@@ -44,6 +44,4 @@ $(call compile_only_if,$(and $(CONFIG_LV_TOUCH_CONTROLLER),$(CONFIG_LV_TOUCH_CON
 $(call compile_only_if,$(and $(CONFIG_LV_TOUCH_CONTROLLER),$(CONFIG_LV_TOUCH_CONTROLLER_RA8875)), lvgl_touch/ra8875_touch.o)
 
 $(call compile_only_if,$(and $(CONFIG_LV_TOUCH_CONTROLLER),$(CONFIG_LV_TOUCH_DRIVER_PROTOCOL_SPI)), lvgl_touch/tp_spi.o)
-
+$(call compile_only_if,$(and $(CONFIG_LV_TOUCH_CONTROLLER),$(CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C)), lvgl_touch/tp_i2c.o)
-# I2C Manager
-$(call compile_only_if,$(CONFIG_LV_I2C), lvgl_i2c/i2c_manager.o)

lvgl_helpers.c

@@ -14,13 +14,14 @@
 #include "lvgl_touch/tp_spi.h"
 
 #include "lvgl_spi_conf.h"
+#include "lvgl_i2c_conf.h"
 
-#include "lvgl_i2c/i2c_manager.h"
+#include "driver/i2c.h"
 
 #ifdef LV_LVGL_H_INCLUDE_SIMPLE
-#include "lvgl.h"
+#include "src/lv_core/lv_refr.h"
 #else
-#include "lvgl/lvgl.h"
+#include "lvgl/src/lv_core/lv_refr.h"
 #endif
 
 /*********************
@@ -52,12 +53,7 @@
 /* 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)
@@ -95,6 +91,19 @@ void lvgl_driver_init(void)
     return;
 #endif
 
+#if defined (SHARED_I2C_BUS)
+    ESP_LOGI(TAG, "Initializing shared I2C master");
+    
+    lvgl_i2c_driver_init(DISP_I2C_PORT,
+        DISP_I2C_SDA, DISP_I2C_SCL,
+        DISP_I2C_SPEED_HZ);
+    
+    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");
@@ -107,17 +116,21 @@ void lvgl_driver_init(void)
     disp_spi_add_device(TFT_SPI_HOST);
     
     disp_driver_init();
-#elif defined (CONFIG_LV_I2C_DISPLAY)
+#elif defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
+    ESP_LOGI(TAG, "Initializing I2C master for display");
+    /* Init the i2c master on the display driver code */
+    lvgl_i2c_driver_init(DISP_I2C_PORT,
+        DISP_I2C_SDA, DISP_I2C_SCL,
+        DISP_I2C_SPEED_HZ);
+    
     disp_driver_init();
 #elif defined (CONFIG_LV_EPAPER_DISPLAY_PROTOCOL_PARALLEL)
     // Do not initialize SPI. Uses EPDiy
-    ESP_LOGI(TAG, "Initializing Parallel driver for display");
+    ESP_LOGI(TAG, "Initializing driver for display");
     // Check how not to initialize SPI. disp_driver_init() call is needed:
     disp_driver_init();
-#elif defined (CONFIG_LV_I2C_DISPLAY)
-    disp_driver_init();
 #else
-#error "No protocol defined for display controller"
+    #error "No protocol defined for display controller"
 #endif
 
 /* Touch controller initialization */
@@ -133,44 +146,87 @@ void lvgl_driver_init(void)
         tp_spi_add_device(TOUCH_SPI_HOST);
         
         touch_driver_init();
-    #elif defined (CONFIG_LV_I2C_TOUCH)
+    #elif defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C)
+        ESP_LOGI(TAG, "Initializing I2C master for touch");
+        lvgl_i2c_driver_init(TOUCH_I2C_PORT,
+            TOUCH_I2C_SDA, TOUCH_I2C_SCL,
+            TOUCH_I2C_SPEED_HZ); 
+        
         touch_driver_init();
     #elif defined (CONFIG_LV_TOUCH_DRIVER_ADC)
         touch_driver_init();
     #elif defined (CONFIG_LV_TOUCH_DRIVER_DISPLAY) || defined (CONFIG_LV_TOUCH_CONTROLLER_L58)
         touch_driver_init();
     #else
-    #error "No protocol defined for touch controller"
+       #error "No protocol defined for touch controller"
+      
     #endif
 #else
 #endif
 }
 
-
+/* Config the i2c master
-/* Initialize spi bus master
  *
- * NOTE: dma_chan type and value changed to int instead of spi_dma_chan_t
+ * This should init the i2c master to be used on display and touch controllers.
- * for backwards compatibility with ESP-IDF versions prior v4.3.
+ * So we should be able to know if the display and touch controllers shares the
- *
+ * same i2c master.
- * We could use the ESP_IDF_VERSION_VAL macro available in the "esp_idf_version.h"
- * header available since ESP-IDF v4.
  */
+bool lvgl_i2c_driver_init(int port, int sda_pin, int scl_pin, int speed_hz)
+{
+    esp_err_t err;
+    
+    ESP_LOGI(TAG, "Initializing I2C master port %d...", port);
+    ESP_LOGI(TAG, "SDA pin: %d, SCL pin: %d, Speed: %d (Hz)",
+        sda_pin, scl_pin, speed_hz);
+    
+    i2c_config_t conf = {
+        .mode               = I2C_MODE_MASTER,
+        .sda_io_num         = sda_pin,
+        .sda_pullup_en      = GPIO_PULLUP_ENABLE,
+        .scl_io_num         = scl_pin,
+        .scl_pullup_en      = GPIO_PULLUP_ENABLE,
+        .master.clk_speed   = speed_hz,
+    };
+
+    ESP_LOGI(TAG, "Setting I2C master configuration...");
+    err = i2c_param_config(port, &conf);
+    assert(ESP_OK == err);
+
+    ESP_LOGI(TAG, "Installing I2C master driver...");
+    err = i2c_driver_install(port,
+        I2C_MODE_MASTER,
+        0, 0 /*I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE */,
+        0 /* intr_alloc_flags */);
+    assert(ESP_OK == err);
+
+    return ESP_OK != err;
+}
+
+/* Initialize spi bus master */
 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)
 {
-    /**
+#if defined (CONFIG_IDF_TARGET_ESP32)
-     * @brief in idf 4.3 is giving me an error:
+    assert((SPI_HOST <= host) && (VSPI_HOST >= host));
-     *        error: 'SPI_HOST_MAX' undeclared
-     */
-    assert((0 <= host) && (SPI_HOST_MAX > host));
     const char *spi_names[] = {
-        "SPI1_HOST", "SPI2_HOST", "SPI3_HOST"
+        "SPI_HOST", "HSPI_HOST", "VSPI_HOST"
     };
+#elif defined (CONFIG_IDF_TARGET_ESP32C3)
+    //assert((SPI2_HOST <= host) && (SPI2_HOST >= host));
+    const char *spi_names[] = {
+        "SPI2_HOST", "", ""
+    };
+#elif defined (CONFIG_IDF_TARGET_ESP32S2) || defined (CONFIG_IDF_TARGET_ESP32S3)
+    //assert((SPI_HOST <= host) && (HSPI_HOST >= host));
+    const char *spi_names[] = {
+        "SPI_HOST", "", ""
+    };
+#endif
 
-    ESP_LOGI(TAG, "Configuring SPI host %s", spi_names[host]);
+    ESP_LOGI(TAG, "Configuring SPI host %s (%d)", spi_names[host], 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);
 
@@ -178,19 +234,17 @@ bool lvgl_spi_driver_init(int host,
 
     spi_bus_config_t buscfg = {
         .miso_io_num = miso_pin,
-        .mosi_io_num = mosi_pin,
+	.mosi_io_num = mosi_pin,
-        .sclk_io_num = sclk_pin,
+	.sclk_io_num = sclk_pin,
-        .quadwp_io_num = quadwp_pin,
+	.quadwp_io_num = quadwp_pin,
-        .quadhd_io_num = quadhd_pin,
+	.quadhd_io_num = quadhd_pin,
         .max_transfer_sz = max_transfer_sz
     };
 
     ESP_LOGI(TAG, "Initializing SPI bus...");
-    #if defined (CONFIG_IDF_TARGET_ESP32C3)
+    esp_err_t ret = spi_bus_initialize(host, &buscfg, dma_channel);
-    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;
 }
+

lvgl_helpers.h

@@ -16,7 +16,6 @@ extern "C" {
 
 #include "lvgl_spi_conf.h"
 #include "lvgl_tft/disp_driver.h"
-#include "lvgl_tft/esp_lcd_backlight.h"
 #include "lvgl_touch/touch_driver.h"
 
 /*********************
@@ -43,11 +42,14 @@ extern "C" {
 #define DISP_BUF_SIZE  (LV_HOR_RES_MAX * 40)
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7796S
 #define DISP_BUF_SIZE  (LV_HOR_RES_MAX * LV_VER_RES_MAX/3)
-// IMPORTANT: This will render the screen in 10 times: 
+// IMPORTANT: This will render the screen in 8 times (Max more and it skips lines)
 #elif defined (CONFIG_LV_EPAPER_EPDIY_DISPLAY_CONTROLLER)
-  #define DISP_BUF_SIZE LV_HOR_RES_MAX*(LV_VER_RES_MAX/10)
+  #define DISP_BUF_SIZE LV_HOR_RES_MAX*(LV_VER_RES_MAX/ 8)
-#elif defined ()
+
-#define DISP_BUF_SIZE  (LV_HOR_RES_MAX * 90)
+#elif defined (CONFIG_LV_EPAPER_CALEPD_DISPLAY_CONTROLLER)
+#define DISP_BUF_SIZE  LV_HOR_RES_MAX*(LV_VER_RES_MAX/10)
+#elif defined (CONFIG_LV_SHARP_DISPLAY_CONTROLLER)
+#define DISP_BUF_SIZE  LV_HOR_RES_MAX*(LV_VER_RES_MAX)
 
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_HX8357
 #define DISP_BUF_SIZE  (LV_HOR_RES_MAX * 40)
@@ -80,10 +82,6 @@ extern "C" {
 #define DISP_BUF_SIZE ((LV_VER_RES_MAX * LV_VER_RES_MAX) / 8) // 5KB
 #elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D)
 #define DISP_BUF_SIZE ((LV_VER_RES_MAX * LV_VER_RES_MAX) / 8) // 2888 bytes
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C
-#define DISP_BUF_SIZE (LV_HOR_RES_MAX * 40)
-#elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544)
-#define DISP_BUF_SIZE  (LV_HOR_RES_MAX * (LV_VER_RES_MAX / 8))
 #else
 #error "No display controller selected"
 #endif
@@ -97,14 +95,14 @@ extern "C" {
  * GLOBAL PROTOTYPES
  **********************/
 
-void lvgl_i2c_locking(void* leader);
-
 /* Initialize detected SPI and I2C bus and devices */
 void lvgl_driver_init(void);
 
 /* Initialize SPI master  */
 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);
+/* Initialize I2C master  */
+bool lvgl_i2c_driver_init(int port, int sda_pin, int scl_pin, int speed);
 
 /**********************
  *      MACROS

lvgl_i2c_conf.h

@@ -0,0 +1,116 @@
+/**
+ * @file lvgl_i2c_config.h
+ */
+
+#ifndef LVGL_I2C_CONF_H
+#define LVGL_I2C_CONF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+#include "lvgl/lvgl.h"
+#endif
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/* TODO: Define the I2C bus clock based on the selected display or touch
+ * controllers. */
+
+/* Do both display and touch controllers uses I2C? */
+#if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C) &&     \
+    defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
+
+#if defined (CONFIG_LV_DISPLAY_I2C_PORT_0) && \
+    defined (CONFIG_LV_TOUCH_I2C_PORT_0)
+#define SHARED_I2C_PORT
+#define DISP_I2C_PORT    I2C_NUM_0
+#endif
+
+#if defined (CONFIG_LV_DISPLAY_I2C_PORT_1) && \
+    defined (CONFIG_LV_TOUCH_I2C_PORT_1)
+#define SHARED_I2C_PORT
+#define DISP_I2C_PORT    I2C_NUM_1
+#endif
+
+#if !defined (SHARED_I2C_PORT)
+#endif
+#endif
+
+#if defined (SHARED_I2C_PORT)
+/* If the port is shared the display and touch controllers must use the same
+ * SCL and SDA pins, otherwise let the user know with an error. */
+#if (CONFIG_LV_DISP_PIN_SDA != CONFIG_LV_TOUCH_I2C_SDA) || \
+    (CONFIG_LV_DISP_PIN_SCL != CONFIG_LV_TOUCH_I2C_SCL)
+#error "To share I2C port you need to choose the same SDA and SCL pins on both display and touch configurations"
+#endif
+
+#define DISP_I2C_SDA            CONFIG_LV_DISP_PIN_SDA
+#define DISP_I2C_SCL            CONFIG_LV_DISP_PIN_SCL
+#define DISP_I2C_ORIENTATION    TFT_ORIENTATION_LANDSCAPE
+
+/* Setting the I2C speed to the slowest one */
+#if DISP_I2C_SPEED_HZ < TOUCH_I2C_SPEED_HZ
+#define DISP_I2C_SPEED_HZ       400000 /* DISP_I2C_SPEED_HZ */
+#else
+#define DISP_I2C_SPEED_HZ       400000 /* DISP_I2C_SPEED_HZ */
+#endif
+
+#else
+
+/* lets check if the touch controller uses I2C... */
+#if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C)
+#if defined (CONFIG_LV_TOUCH_I2C_PORT_0)
+#define TOUCH_I2C_PORT           I2C_NUM_0
+#else
+#define TOUCH_I2C_PORT           I2C_NUM_1
+#endif
+#define TOUCH_I2C_SDA            CONFIG_LV_TOUCH_I2C_SDA
+#define TOUCH_I2C_SCL            CONFIG_LV_TOUCH_I2C_SCL
+#define TOUCH_I2C_SPEED_HZ       400000
+#endif
+
+/* lets check if the display controller uses I2C... */
+#if defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
+#if defined (CONFIG_LV_DISPLAY_I2C_PORT_0)
+#define DISP_I2C_PORT           I2C_NUM_0
+#else
+#define DISP_I2C_PORT           I2C_NUM_1
+#endif
+
+#define DISP_I2C_SDA            CONFIG_LV_DISP_PIN_SDA
+#define DISP_I2C_SCL            CONFIG_LV_DISP_PIN_SCL
+#define DISP_I2C_ORIENTATION    TFT_ORIENTATION_LANDSCAPE
+#define DISP_I2C_SPEED_HZ       400000
+#endif
+
+#endif
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+
+/**********************
+ *      MACROS
+ **********************/
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*LVGL_I2C_CONF_H*/

lvgl_spi_conf.h

@@ -64,10 +64,12 @@ extern "C" {
 
 #define ENABLE_TOUCH_INPUT  CONFIG_LV_ENABLE_TOUCH
 
-#if defined (CONFIG_LV_TFT_DISPLAY_SPI2_HOST)
+#if defined (CONFIG_LV_TFT_DISPLAY_SPI_HSPI)
-#define TFT_SPI_HOST SPI2_HOST
+#define TFT_SPI_HOST HSPI_HOST
-#elif defined (CONFIG_LV_TFT_DISPLAY_SPI3_HOST)
+#elif defined (CONFIG_LV_TFT_DISPLAY_SPI_VSPI)
-#define TFT_SPI_HOST SPI3_HOST
+#define TFT_SPI_HOST VSPI_HOST
+#elif defined (CONFIG_LV_TFT_DISPLAY_SPI_FSPI)
+#define TFT_SPI_HOST FSPI_HOST
 #endif
 
 #if defined (CONFIG_LV_TFT_DISPLAY_SPI_HALF_DUPLEX)
@@ -84,10 +86,12 @@ extern "C" {
 #define DISP_SPI_TRANS_MODE_SIO
 #endif
 
-#if defined (CONFIG_LV_TOUCH_CONTROLLER_SPI2_HOST)
+#if defined (CONFIG_LV_TOUCH_CONTROLLER_SPI_HSPI)
-#define TOUCH_SPI_HOST SPI2_HOST
+#define TOUCH_SPI_HOST HSPI_HOST
-#elif defined (CONFIG_LV_TOUCH_CONTROLLER_SPI3_HOST)
+#elif defined (CONFIG_LV_TOUCH_CONTROLLER_SPI_VSPI)
-#define TOUCH_SPI_HOST SPI3_HOST
+#define TOUCH_SPI_HOST VSPI_HOST
+#elif defined (CONFIG_LV_TOUCH_CONTROLLER_SPI_FSPI)
+#define TOUCH_SPI_HOST FSPI_HOST
 #endif
 
 /* Handle the FT81X Special case */
@@ -103,7 +107,7 @@ extern "C" {
 // Detect the use of a shared SPI Bus and verify the user specified the same SPI bus for both touch and tft
 #if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_SPI) && TP_SPI_MOSI == DISP_SPI_MOSI && TP_SPI_CLK == DISP_SPI_CLK
 #if TFT_SPI_HOST != TOUCH_SPI_HOST
-#error You must specify the same SPI host (SPIx_HOST) for both display and touch driver
+#error You must specify the same SPI host (HSPI, VSPI or FSPI) for both display and touch driver
 #endif
 
 #define SHARED_SPI_BUS
@@ -126,8 +130,7 @@ extern "C" {
       defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_SH1107)   || \
       defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)    || \
       defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_IL3820)   || \
-      defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_JD79653A) || \
+      defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_JD79653A)
-      defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C)
 
 #define SPI_BUS_MAX_TRANSFER_SZ (DISP_BUF_SIZE * 2)
 
@@ -154,12 +157,8 @@ extern "C" {
 #define SPI_TFT_CLOCK_SPEED_HZ  (40*1000*1000)
 #elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9341)
 #define SPI_TFT_CLOCK_SPEED_HZ  (40*1000*1000)
-#elif defined(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C)
+#elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
-#define SPI_TFT_CLOCK_SPEED_HZ (40 * 1000 * 1000)
-#elif defined(CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
 #define SPI_TFT_CLOCK_SPEED_HZ  (32*1000*1000)
-#elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544)
-#define SPI_TFT_CLOCK_SPEED_HZ  (4*1000*1000)
 #else
 #define SPI_TFT_CLOCK_SPEED_HZ  (40*1000*1000)
 #endif

lvgl_tft/EVE_commands.c

@@ -144,7 +144,7 @@ void DELAY_MS(uint16_t ms)
 	vTaskDelay(ms / portTICK_PERIOD_MS);
 }
 
-#if EVE_USE_PDN
+
 void EVE_pdn_set(void)
 {
 	gpio_set_level(EVE_PDN, 0);	/* Power-Down low */
@@ -155,7 +155,7 @@ void EVE_pdn_clear(void)
 {
 	gpio_set_level(EVE_PDN, 1);	/* Power-Down high */
 }
-#endif
+
 
 void spi_acquire()
 {
@@ -841,13 +841,11 @@ uint8_t EVE_init(void)
 	uint8_t chipid = 0;
 	uint16_t timeout = 0;
 
-#if EVE_USE_PDN
 	EVE_pdn_set();
 	DELAY_MS(6); /* minimum time for power-down is 5ms */
 
 	EVE_pdn_clear();
 	DELAY_MS(21); /* minimum time to allow from rising PD_N to first access is 20ms */
-#endif
 
 	/*	EVE_cmdWrite(EVE_CORERST,0); */ /* reset, only required for warm-start if PowerDown line is not used */
 

lvgl_tft/EVE_commands.h

@@ -39,12 +39,8 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 #define BLOCK_TRANSFER_SIZE 3840		// block transfer size when write data to CMD buffer
 
 void DELAY_MS(uint16_t ms);
-
-#if EVE_USE_PDN
 void EVE_pdn_set(void);
 void EVE_pdn_clear(void);
-#endif
-
 void spi_acquire();
 void spi_release();
 

lvgl_tft/EVE_config.h

@@ -44,12 +44,11 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 
 #include "FT81x.h"
 
-#define EVE_CLK		    DISP_SPI_CLK				    // orange
+#define EVE_CLK		DISP_SPI_CLK				// orange
-#define EVE_MISO	    DISP_SPI_MISO				    // yellow
+#define EVE_MISO	DISP_SPI_MISO				// yellow
-#define EVE_MOSI	    DISP_SPI_MOSI				    // green
+#define EVE_MOSI	DISP_SPI_MOSI				// green
-#define EVE_CS 		    DISP_SPI_CS					    // blue
+#define EVE_CS 		DISP_SPI_CS					// blue
-#define EVE_PDN		    CONFIG_LV_DISP_PIN_RST	// grey
+#define EVE_PDN		CONFIG_LV_DISP_PIN_RST		// grey
-#define EVE_USE_PDN		CONFIG_LV_DISP_USE_RST
 
 #define SPI_TRANSER_SIZE (DISP_BUF_SIZE * (LV_COLOR_DEPTH / 8))
 

lvgl_tft/FT81x.c

@@ -262,15 +262,9 @@ void TFT_bitmap_display(void)
 
 void FT81x_init(void)
 {
-#if EVE_USE_PDN
 	gpio_pad_select_gpio(EVE_PDN);
-#endif
-
 	gpio_set_level(EVE_CS, 1);
-
-#if EVE_USE_PDN
 	gpio_set_direction(EVE_PDN, GPIO_MODE_OUTPUT);
-#endif
 
 	spi_acquire();
 	

lvgl_tft/GC9A01.c

@@ -111,20 +111,31 @@ void GC9A01_init(void)
 
 	};
 
-	//Initialize non-SPI GPIOs
+#if GC9A01_BCKL == 15
-    gpio_pad_select_gpio(GC9A01_DC);
+	gpio_config_t io_conf;
-	gpio_set_direction(GC9A01_DC, GPIO_MODE_OUTPUT);
+    io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    io_conf.pin_bit_mask = GPIO_SEL_15;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+    gpio_config(&io_conf);
+#endif
 
-#if GC9A01_USE_RST
+	//Initialize non-SPI GPIOs
-    gpio_pad_select_gpio(GC9A01_RST);
+        gpio_pad_select_gpio(GC9A01_DC);
+	gpio_set_direction(GC9A01_DC, GPIO_MODE_OUTPUT);
+        gpio_pad_select_gpio(GC9A01_RST);
 	gpio_set_direction(GC9A01_RST, GPIO_MODE_OUTPUT);
 
+#if GC9A01_ENABLE_BACKLIGHT_CONTROL
+    gpio_pad_select_gpio(GC9A01_BCKL);
+    gpio_set_direction(GC9A01_BCKL, GPIO_MODE_OUTPUT);
+#endif
 	//Reset the display
 	gpio_set_level(GC9A01_RST, 0);
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(GC9A01_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "Initialization.");
 
@@ -139,6 +150,8 @@ void GC9A01_init(void)
 		cmd++;
 	}
 
+	GC9A01_enable_backlight(true);
+
 	GC9A01_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 
 #if GC9A01_INVERT_COLORS == 1
@@ -178,6 +191,22 @@ void GC9A01_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
 	GC9A01_send_color((void*)color_map, size * 2);
 }
 
+void GC9A01_enable_backlight(bool backlight)
+{
+#if GC9A01_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (GC9A01_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(GC9A01_BCKL, tmp);
+#endif
+}
+
 void GC9A01_sleep_in()
 {
 	uint8_t data[] = {0x08};

lvgl_tft/GC9A01.h

@@ -25,9 +25,18 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-#define GC9A01_DC            CONFIG_LV_DISP_PIN_DC
+#define GC9A01_DC   CONFIG_LV_DISP_PIN_DC
-#define GC9A01_RST           CONFIG_LV_DISP_PIN_RST
+#define GC9A01_RST  CONFIG_LV_DISP_PIN_RST
-#define GC9A01_USE_RST       CONFIG_LV_DISP_USE_RST
+#define GC9A01_BCKL CONFIG_LV_DISP_PIN_BCKL
+
+#define GC9A01_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define GC9A01_BCKL_ACTIVE_LVL 1
+#else
+  #define GC9A01_BCKL_ACTIVE_LVL 0
+#endif
+
 #define GC9A01_INVERT_COLORS CONFIG_LV_INVERT_COLORS
 
 /**********************
@@ -40,6 +49,7 @@ extern "C" {
 
 void GC9A01_init(void);
 void GC9A01_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void GC9A01_enable_backlight(bool backlight);
 void GC9A01_sleep_in(void);
 void GC9A01_sleep_out(void);
 

lvgl_tft/Kconfig

@@ -21,10 +21,6 @@ menu "LVGL TFT/Epaper Display controller"
             bool "M5Stack"
             select LV_TFT_DISPLAY_CONTROLLER_ILI9341
             select LV_TFT_DISPLAY_PROTOCOL_SPI
-        config LV_PREDEFINED_DISPLAY_M5CORE2
-            bool "M5Core2"
-            select LV_TFT_DISPLAY_CONTROLLER_ILI9341
-            select LV_TFT_DISPLAY_PROTOCOL_SPI
         config LV_PREDEFINED_DISPLAY_M5STICK
             bool "M5Stick"
             select LV_TFT_DISPLAY_CONTROLLER_SH1107
@@ -50,7 +46,7 @@ menu "LVGL TFT/Epaper Display controller"
         config LV_PREDEFINED_DISPLAY_WEMOS_LOLIN
             bool "Wemos Lolin OLED"
             select LV_TFT_DISPLAY_CONTROLLER_SSD1306
-            select LV_I2C_DISPLAY
+            select LV_TFT_DISPLAY_PROTOCOL_I2C
             select LV_TFT_DISPLAY_MONOCHROME
             select LV_THEME_MONO
         config LV_PREDEFINED_DISPLAY_ATAG
@@ -93,7 +89,14 @@ menu "LVGL TFT/Epaper Display controller"
         bool
         help
             EPDIY parallel epaper controller.
-
+    config LV_EPAPER_CALEPD_DISPLAY_CONTROLLER
+        bool
+        help
+            CalEPD SPI epaper controller.
+    config LV_SHARP_DISPLAY_CONTROLLER
+        bool
+        help
+            SHARP memory LCD controller.
     config LV_TFT_DISPLAY_CONTROLLER_ILI9341
         bool
         help
@@ -174,15 +177,6 @@ menu "LVGL TFT/Epaper Display controller"
         help
             ST7796S display controller.
 
-    config LV_TFT_DISPLAY_CONTROLLER_ILI9163C
-        bool
-        help
-            ILI9163C display controller.
-
-    config LV_TFT_DISPLAY_CONTROLLER_PCD8544
-        bool
-        help
-            PCD8544 display controller (Nokia 3110/5110)
     # Display controller communication protocol
     #
     # This symbols define the communication protocol used by the
@@ -201,7 +195,7 @@ menu "LVGL TFT/Epaper Display controller"
         help
             Display controller protocol SPI
 
-    config LV_I2C_DISPLAY
+    config LV_TFT_DISPLAY_PROTOCOL_I2C
         bool
         help
             Display controller protocol I2C
@@ -209,24 +203,24 @@ menu "LVGL TFT/Epaper Display controller"
     # Used in display init function to send display orientation commands
     choice DISPLAY_ORIENTATION
         prompt "Display orientation"
-        default LV_DISPLAY_ORIENTATION_PORTRAIT if !LV_TFT_DISPLAY_CONTROLLER_SSD1306
+        default DISPLAY_ORIENTATION_PORTRAIT if !LV_TFT_DISPLAY_CONTROLLER_SSD1306
-        default LV_DISPLAY_ORIENTATION_LANDSCAPE if LV_TFT_DISPLAY_CONTROLLER_SSD1306
+        default DISPLAY_ORIENTATION_LANDSCAPE if LV_TFT_DISPLAY_CONTROLLER_SSD1306
-        config LV_DISPLAY_ORIENTATION_PORTRAIT
+        config DISPLAY_ORIENTATION_PORTRAIT
             bool "Portrait" if !LV_TFT_DISPLAY_CONTROLLER_SSD1306
-        config LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED
+        config DISPLAY_ORIENTATION_PORTRAIT_INVERTED
             bool "Portrait inverted" if !LV_TFT_DISPLAY_CONTROLLER_SSD1306
-        config LV_DISPLAY_ORIENTATION_LANDSCAPE
+        config DISPLAY_ORIENTATION_LANDSCAPE
             bool "Landscape"
-        config LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED
+        config DISPLAY_ORIENTATION_LANDSCAPE_INVERTED
             bool "Landscape inverted"
     endchoice
 
     config LV_DISPLAY_ORIENTATION
         int
-        default 0 if LV_DISPLAY_ORIENTATION_PORTRAIT
+        default 0 if DISPLAY_ORIENTATION_PORTRAIT
-        default 1 if LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED
+        default 1 if DISPLAY_ORIENTATION_PORTRAIT_INVERTED
-        default 2 if LV_DISPLAY_ORIENTATION_LANDSCAPE
+        default 2 if DISPLAY_ORIENTATION_LANDSCAPE
-        default 3 if LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED
+        default 3 if DISPLAY_ORIENTATION_LANDSCAPE_INVERTED
 
     config LV_TFT_DISPLAY_OFFSETS
         bool
@@ -235,14 +229,14 @@ menu "LVGL TFT/Epaper Display controller"
 
     config LV_TFT_DISPLAY_X_OFFSET
         depends on LV_TFT_DISPLAY_OFFSETS
-        int "X offset"
+        int
         default 40 if LV_PREDEFINED_DISPLAY_TTGO && (LV_DISPLAY_ORIENTATION_LANDSCAPE || LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
         default 53 if LV_PREDEFINED_DISPLAY_TTGO && (LV_DISPLAY_ORIENTATION_PORTRAIT  || LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED)
         default 0
 
     config LV_TFT_DISPLAY_Y_OFFSET
         depends on LV_TFT_DISPLAY_OFFSETS
-        int "Y offset"
+        int
         default 53  if LV_PREDEFINED_DISPLAY_TTGO && (LV_DISPLAY_ORIENTATION_LANDSCAPE || LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
         default 40 if LV_PREDEFINED_DISPLAY_TTGO && (LV_DISPLAY_ORIENTATION_PORTRAIT  || LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED)
         default 0
@@ -284,6 +278,18 @@ menu "LVGL TFT/Epaper Display controller"
         bool "EPDIY_GENERIC"
             select LV_EPAPER_EPDIY_DISPLAY_CONTROLLER
             select LV_EPAPER_DISPLAY_PROTOCOL_PARALLEL
+        
+    config LV_EPAPER_DISPLAY_USER_CONTROLLER_CALEPD
+        bool "CALEPD_GENERIC"
+        # Use also Parallel to avoid LGVL SPI instantiation
+            select LV_EPAPER_CALEPD_DISPLAY_CONTROLLER
+            select LV_EPAPER_DISPLAY_PROTOCOL_PARALLEL
+    config LV_SHARP_USER_CONTROLLER
+        bool "SHARP_LCD"
+        # Use also Parallel to avoid LGVL SPI instantiation
+            select LV_SHARP_DISPLAY_CONTROLLER
+            select LV_EPAPER_DISPLAY_PROTOCOL_PARALLEL
+
     config LV_TFT_DISPLAY_USER_CONTROLLER_ILI9341
         bool "ILI9341"
             select LV_TFT_DISPLAY_CONTROLLER_ILI9341
@@ -328,7 +334,7 @@ menu "LVGL TFT/Epaper Display controller"
         config LV_TFT_DISPLAY_USER_CONTROLLER_SSD1306
             bool "SSD1306"
             select LV_TFT_DISPLAY_CONTROLLER_SSD1306
-            select LV_I2C_DISPLAY
+            select LV_TFT_DISPLAY_PROTOCOL_I2C
             select LV_TFT_DISPLAY_MONOCHROME
         config LV_TFT_DISPLAY_USER_CONTROLLER_FT81X
             bool "FT81X"
@@ -353,15 +359,6 @@ menu "LVGL TFT/Epaper Display controller"
             bool "RA8875"
             select LV_TFT_DISPLAY_CONTROLLER_RA8875
             select LV_TFT_DISPLAY_PROTOCOL_SPI
-        config LV_TFT_DISPLAY_USER_CONTROLLER_ILI9163C
-            bool "ILI9163C"
-            select LV_TFT_DISPLAY_CONTROLLER_ILI9163C
-            select LV_TFT_DISPLAY_PROTOCOL_SPI
-        config LV_TFT_DISPLAY_USER_CONTROLLER_PCD8544
-            bool "PCD8544"
-            select LV_TFT_DISPLAY_CONTROLLER_PCD8544
-            select LV_TFT_DISPLAY_PROTOCOL_SPI
-            select LV_TFT_DISPLAY_MONOCHROME
     endchoice
 
     config CUSTOM_DISPLAY_BUFFER_SIZE
@@ -481,15 +478,20 @@ menu "LVGL TFT/Epaper Display controller"
     endchoice
 
     choice
-        prompt "TFT SPI Bus." if LV_TFT_DISPLAY_PROTOCOL_SPI
+        prompt "TFT SPI Bus." if LV_TFT_DISPLAY_PROTOCOL_SPI && \
-        default LV_TFT_DISPLAY_SPI2_HOST
+            !LV_PREDEFINED_DISPLAY_TTGO
+        default LV_TFT_DISPLAY_SPI_VSPI if LV_PREDEFINED_DISPLAY_TTGO && \
+            !IDF_TARGET_ESP32S2
+        default LV_TFT_DISPLAY_SPI_FSPI if IDF_TARGET_ESP32S2
         help
               Select the SPI Bus the TFT Display is attached to.
 
-        config LV_TFT_DISPLAY_SPI2_HOST
+        config LV_TFT_DISPLAY_SPI_HSPI
-            bool "SPI2_HOST"
+            bool "HSPI"
-        config LV_TFT_DISPLAY_SPI3_HOST
+        config LV_TFT_DISPLAY_SPI_VSPI
-            bool "SPI3_HOST"
+            bool "VSPI" if !IDF_TARGET_ESP32S2
+        config LV_TFT_DISPLAY_SPI_FSPI
+            bool "FSPI" if IDF_TARGET_ESP32S2
     endchoice
 
     choice
@@ -520,6 +522,18 @@ menu "LVGL TFT/Epaper Display controller"
             depends on LV_TFT_DISPLAY_SPI_TRANS_MODE_SIO
     endchoice
 
+    choice
+        prompt "Display I2C port" if LV_TFT_DISPLAY_PROTOCOL_I2C
+        default LV_DISPLAY_I2C_PORT_0
+        help
+            Select the I2C port used by the display controller.
+
+        config LV_DISPLAY_I2C_PORT_0
+            bool "I2C PORT 0"
+        config LV_DISPLAY_I2C_PORT_1
+            bool "I2C PORT 1"
+    endchoice
+
     config LV_TFT_USE_CUSTOM_SPI_CLK_DIVIDER
         bool "Use custom SPI clock frequency." if LV_TFT_DISPLAY_PROTOCOL_SPI
         default n
@@ -597,16 +611,6 @@ menu "LVGL TFT/Epaper Display controller"
         default 80 if LV_TFT_SPI_CLK_DIVIDER_80
         default 2
 
-    config LV_M5STICKC_HANDLE_AXP192
-        bool "Handle Backlight and TFT power for M5StickC using AXP192." if LV_PREDEFINED_DISPLAY_M5STICKC || LV_TFT_DISPLAY_CONTROLLER_ST7735S
-        default y if LV_PREDEFINED_DISPLAY_M5STICKC
-        select LV_I2C_DISPLAY
-        help
-            Display and TFT power supply on M5StickC is controlled using an
-            AXP192 Power Mangerment IC. Select yes if you want to enable TFT IC
-            (LDO3) and backlight power using AXP192 by LVGL, or select no if you
-            want to take care of power management in your own code.
-
     config LV_INVERT_DISPLAY
         bool "IN DEPRECATION - Invert display." if LV_TFT_DISPLAY_CONTROLLER_RA8875
         default n
@@ -614,12 +618,37 @@ menu "LVGL TFT/Epaper Display controller"
             If text is backwards on your display, try enabling this.
 
     config LV_INVERT_COLORS
-        bool "Invert colors in display" if LV_TFT_DISPLAY_CONTROLLER_ILI9341 || LV_TFT_DISPLAY_CONTROLLER_ST7735S || LV_TFT_DISPLAY_CONTROLLER_ILI9481 || LV_TFT_DISPLAY_CONTROLLER_ST7789 || LV_TFT_DISPLAY_CONTROLLER_SSD1306 || LV_TFT_DISPLAY_CONTROLLER_SH1107 || LV_TFT_DISPLAY_CONTROLLER_HX8357 || LV_TFT_DISPLAY_CONTROLLER_GC9A01 || LV_TFT_DISPLAY_CONTROLLER_ILI9163C
+        bool "Invert colors in display" if LV_TFT_DISPLAY_CONTROLLER_ILI9341 || LV_TFT_DISPLAY_CONTROLLER_ST7735S || LV_TFT_DISPLAY_CONTROLLER_ILI9481 || LV_TFT_DISPLAY_CONTROLLER_ST7789 || LV_TFT_DISPLAY_CONTROLLER_SSD1306 || LV_TFT_DISPLAY_CONTROLLER_SH1107 || LV_TFT_DISPLAY_CONTROLLER_HX8357
         default y if LV_PREDEFINED_DISPLAY_M5STACK || LV_PREDEFINED_DISPLAY_M5STICKC
         help
             If the colors look inverted on your display, try enabling this.
             If it didn't help try LVGL configuration -> Swap the 2 bytes of RGB565 color.
 
+    config LV_M5STICKC_HANDLE_AXP192
+        bool "Handle Backlight and TFT power for M5StickC using AXP192." if LV_PREDEFINED_DISPLAY_M5STICKC || LV_TFT_DISPLAY_CONTROLLER_ST7735S
+        default y if LV_PREDEFINED_DISPLAY_M5STICKC
+        help
+            Display and TFT power supply on M5StickC is controlled using an AXP192 Power Mangerment IC.
+            Select yes if you want to enable TFT IC (LDO3) and backlight power using AXP192 by LVGL, or select no if you want to take care of
+            power management in your own code.
+
+    config LV_AXP192_PIN_SDA
+        int "GPIO for AXP192 I2C SDA"
+        depends on LV_M5STICKC_HANDLE_AXP192
+        range 0 39
+        default 21 if LV_PREDEFINED_DISPLAY_M5STICKC
+        default 21
+        help
+            Configure the AXP192 I2C SDA pin here.
+
+    config LV_AXP192_PIN_SCL
+        int "GPIO for AXP192 I2C SCL"
+        depends on LV_M5STICKC_HANDLE_AXP192
+        range 0 39
+        default 22 if LV_PREDEFINED_DISPLAY_M5STICKC
+        default 22
+        help
+            Configure the AXP192 I2C SDA pin here.
 
     # menu will be visible only when LV_PREDEFINED_DISPLAY_NONE is y
     menu "Display RA8875 Configuration"
@@ -760,10 +789,12 @@ menu "LVGL TFT/Epaper Display controller"
 
         config LV_DISP_SPI_MOSI
             int "GPIO for MOSI (Master Out Slave In)" if LV_TFT_DISPLAY_PROTOCOL_SPI
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             default 23 if LV_PREDEFINED_DISPLAY_WROVER4
             default 23 if LV_PREDEFINED_DISPLAY_ATAG
             default 23 if LV_PREDEFINED_DISPLAY_M5STACK || LV_PREDEFINED_DISPLAY_M5STICK
-            default 23 if LV_PREDEFINED_DISPLAY_M5CORE2
             default 15 if LV_PREDEFINED_DISPLAY_M5STICKC
             default 18 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
             default 23 if LV_PREDEFINED_PINS_TKOALA
@@ -771,13 +802,13 @@ menu "LVGL TFT/Epaper Display controller"
             default 19 if LV_PREDEFINED_DISPLAY_TTGO_CAMERA_PLUS
             default 13 if LV_PREDEFINED_DISPLAY_WT32_SC01
             default 13
+
             help
                 Configure the display MOSI pin here.
 
         config LV_DISPLAY_USE_SPI_MISO
             bool "GPIO for MISO (Master In Slave Out)" if LV_TFT_DISPLAY_PROTOCOL_SPI
             default y if LV_PREDEFINED_PINS_TKOALA
-            default y if LV_PREDEFINED_DISPLAY_M5CORE2
             help
                 Enable the MISO signal to control the display. You can disable
                 it when the display does not need MISO signal to be controlled.
@@ -785,8 +816,10 @@ menu "LVGL TFT/Epaper Display controller"
         config LV_DISP_SPI_MISO
             int "GPIO for MISO (Master In Slave Out)" if LV_TFT_DISPLAY_PROTOCOL_SPI
             depends on LV_DISPLAY_USE_SPI_MISO
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             default 19 if LV_PREDEFINED_PINS_TKOALA
-            default 38 if LV_PREDEFINED_DISPLAY_M5CORE2
             default 0
 
             help
@@ -804,6 +837,9 @@ menu "LVGL TFT/Epaper Display controller"
         config LV_DISP_SPI_IO2
             int "GPIO for Quad SPI IO2/WP" if LV_TFT_DISPLAY_PROTOCOL_SPI
             depends on LV_TFT_DISPLAY_SPI_TRANS_MODE_QIO
+            range -1 39 if IDF_TARGET_ESP32
+            range -1 43 if IDF_TARGET_ESP32S2
+
             default 22 if LV_PREDEFINED_PINS_TKOALA && LV_TFT_DISPLAY_SPI_TRANS_MODE_QIO
             default -1
             help
@@ -812,6 +848,9 @@ menu "LVGL TFT/Epaper Display controller"
         config LV_DISP_SPI_IO3
             int "GPIO for Quad SPI IO3/HD" if LV_TFT_DISPLAY_PROTOCOL_SPI
             depends on LV_TFT_DISPLAY_SPI_TRANS_MODE_QIO
+            range -1 39 if IDF_TARGET_ESP32
+            range -1 43 if IDF_TARGET_ESP32S2
+
             default 21 if LV_PREDEFINED_PINS_TKOALA && LV_TFT_DISPLAY_SPI_TRANS_MODE_QIO
             default -1
             help
@@ -819,8 +858,10 @@ menu "LVGL TFT/Epaper Display controller"
 
         config LV_DISP_SPI_CLK
             int "GPIO for CLK (SCK / Serial Clock)" if LV_TFT_DISPLAY_PROTOCOL_SPI
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             default 18 if LV_PREDEFINED_DISPLAY_M5STACK || LV_PREDEFINED_DISPLAY_M5STICK
-            default 18 if LV_PREDEFINED_DISPLAY_M5CORE2
             default 13 if LV_PREDEFINED_DISPLAY_M5STICKC
             default 18 if LV_PREDEFINED_DISPLAY_ATAG
             default 19 if LV_PREDEFINED_DISPLAY_WROVER4
@@ -844,9 +885,11 @@ menu "LVGL TFT/Epaper Display controller"
         config LV_DISP_SPI_CS
             int "GPIO for CS (Slave Select)" if LV_TFT_DISPLAY_PROTOCOL_SPI
             depends on LV_DISPLAY_USE_SPI_CS
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             default 5 if LV_PREDEFINED_PINS_38V1
             default 14 if LV_PREDEFINED_DISPLAY_M5STACK || LV_PREDEFINED_DISPLAY_M5STICK
-            default 5 if LV_PREDEFINED_DISPLAY_M5CORE2
             default 5 if LV_PREDEFINED_DISPLAY_M5STICKC
             default 22 if LV_PREDEFINED_DISPLAY_WROVER4
             default 15 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
@@ -869,11 +912,13 @@ menu "LVGL TFT/Epaper Display controller"
 
         config LV_DISP_PIN_DC
             int "GPIO for DC (Data / Command)" if LV_TFT_DISPLAY_PROTOCOL_SPI
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             depends on LV_DISPLAY_USE_DC
             default 19 if LV_PREDEFINED_PINS_38V1
             default 17 if LV_PREDEFINED_PINS_38V4
             default 27 if LV_PREDEFINED_DISPLAY_M5STACK || LV_PREDEFINED_DISPLAY_M5STICK
-            default 15 if LV_PREDEFINED_DISPLAY_M5CORE2
             default 23 if LV_PREDEFINED_DISPLAY_M5STICKC
             default 21 if LV_PREDEFINED_DISPLAY_WROVER4
             default 21 if LV_PREDEFINED_DISPLAY_WT32_SC01
@@ -887,22 +932,11 @@ menu "LVGL TFT/Epaper Display controller"
             help
                 Configure the display DC pin here.
 
-        config LV_DISP_USE_RST
-            bool "Use a GPIO for resetting the display" if LV_TFT_DISPLAY_PROTOCOL_SPI
-            default n if LV_PREDEFINED_DISPLAY_M5CORE2
-            default y
-            help
-                Enable display reset control. Set this if the reset pin of the
-                display is connected to the host. If this is not set, then it is
-                the user's responsibility to ensure that the display is reset
-                before initialisation.
-                You may want to disable this option because the reset pin is not
-                connected, or is connected to an external component such as the
-                power management IC.
-
         config LV_DISP_PIN_RST
             int "GPIO for Reset" if LV_TFT_DISPLAY_PROTOCOL_SPI && !LV_DISP_ST7789_SOFT_RESET
-            depends on LV_DISP_USE_RST
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             default 18 if LV_PREDEFINED_PINS_38V1
             default 25 if LV_PREDEFINED_PINS_38V4
             default 33 if LV_PREDEFINED_DISPLAY_M5STACK || LV_PREDEFINED_DISPLAY_M5STICK
@@ -921,103 +955,84 @@ menu "LVGL TFT/Epaper Display controller"
 
         config LV_DISP_PIN_BUSY
             int "GPIO for Busy" if LV_TFT_DISPLAY_CONTROLLER_IL3820 || LV_TFT_DISPLAY_CONTROLLER_JD79653A || LV_TFT_DISPLAY_CONTROLLER_UC8151D
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
             default 35 if LV_TFT_DISPLAY_CONTROLLER_IL3820 || LV_TFT_DISPLAY_CONTROLLER_JD79653A || LV_TFT_DISPLAY_CONTROLLER_UC8151D
-            default 35 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32S2
+            default 35
-            default 21 if IDF_TARGET_ESP32C3
 
             help
                 Configure the display Busy pin here.
 
+        config LV_ENABLE_BACKLIGHT_CONTROL
+            bool "Enable control of the display backlight by using an GPIO." if \
+                ( LV_PREDEFINED_DISPLAY_NONE && ! ( LV_TFT_DISPLAY_CONTROLLER_SH1107 || LV_TFT_DISPLAY_CONTROLLER_SSD1306 ) ) \
+                || LV_PREDEFINED_DISPLAY_RPI_MPI3501
+            default y if LV_PREDEFINED_DISPLAY_M5STACK
+            default y if LV_PREDEFINED_DISPLAY_WROVER4
+            default y if LV_PREDEFINED_DISPLAY_ERTFT0356
+            default y if LV_PREDEFINED_DISPLAY_TTGO
+            default y if LV_PREDEFINED_DISPLAY_TTGO_CAMERA_PLUS
+            default y if LV_PREDEFINED_DISPLAY_WT32_SC01
+            help
+                Enable controlling the display backlight using an GPIO
+
+        config LV_BACKLIGHT_ACTIVE_LVL
+            bool "Is backlight turn on with a HIGH (1) logic level?"
+            depends on LV_ENABLE_BACKLIGHT_CONTROL
+            default y if LV_PREDEFINED_DISPLAY_M5STACK
+            default y if LV_PREDEFINED_DISPLAY_ERTFT0356
+            default y if LV_PREDEFINED_DISPLAY_TTGO
+            default y if LV_PREDEFINED_DISPLAY_TTGO_CAMERA_PLUS
+            default y if LV_PREDEFINED_DISPLAY_WT32_SC01
+            help
+                Some backlights are turned on with a high signal, others held low.
+                If enabled, a value of 1 will be sent to the display to enable the backlight,
+                otherwise a 0 will be expected to enable it.
+
+        config LV_DISP_PIN_BCKL
+            int "GPIO for Backlight Control"
+            depends on LV_ENABLE_BACKLIGHT_CONTROL
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
+            default 23 if LV_PREDEFINED_PINS_38V1
+            default 26 if LV_PREDEFINED_PINS_38V4
+            default 32 if LV_PREDEFINED_DISPLAY_M5STACK
+            default 5 if LV_PREDEFINED_DISPLAY_WROVER4
+            default 2 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
+            default 27 if LV_PREDEFINED_DISPLAY_ERTFT0356
+            default 0  if LV_PREDEFINED_PINS_TKOALA
+            default 4 if LV_PREDEFINED_DISPLAY_TTGO
+            default 2 if LV_PREDEFINED_DISPLAY_TTGO_CAMERA_PLUS
+            default 23 if LV_PREDEFINED_DISPLAY_WT32_SC01
+            default 27
+
+            help
+                Configure the display BCLK (LED) pin here.
+
+        config LV_DISP_PIN_SDA
+            int "GPIO for I2C SDA" if LV_TFT_DISPLAY_PROTOCOL_I2C
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
+            default 5 if LV_PREDEFINED_DISPLAY_WEMOS_LOLIN
+            default 5
+
+            help
+            Configure the I2C SDA pin here.
+
+        config LV_DISP_PIN_SCL
+            int "GPIO for I2C SCL" if LV_TFT_DISPLAY_PROTOCOL_I2C
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
+            default 4 if LV_PREDEFINED_DISPLAY_WEMOS_LOLIN
+            default 4
+
+            help
+            Configure the I2C SCL pin here.
+
     endmenu
 
-    choice
-        prompt "Select an I2C port for the display"
-        default LV_I2C_DISPLAY_PORT_0
-        depends on LV_I2C_DISPLAY
-
-        config LV_I2C_DISPLAY_PORT_0
-            bool
-            prompt "I2C port 0"
-            help
-                I2C is shared peripheral managed by I2C Manager. In order to configure I2C Manager (pinout, etc.) see menu
-                Component config->I2C Port Settings.
-
-        config LV_I2C_DISPLAY_PORT_1
-            bool
-            prompt "I2C port 1"
-            help
-                I2C is shared peripheral managed by I2C Manager. In order to configure I2C Manager (pinout, etc.) see menu
-                Component config->I2C Port Settings.
-
-    endchoice
-
-    choice
-        default LV_DISP_BACKLIGHT_SWITCH
-        prompt "Backlight Control" if \
-            (! ( LV_TFT_DISPLAY_CONTROLLER_SH1107 || LV_TFT_DISPLAY_CONTROLLER_SSD1306 ) )
-
-        config LV_DISP_BACKLIGHT_OFF
-            bool
-            prompt "Not Used"
-            help
-                Display backlight is not controlled by this driver, must be hardwired in hardware.
-
-        config LV_DISP_BACKLIGHT_SWITCH
-            bool
-            prompt "Switch control"
-            help
-                Display backlight can be switched on or off.
-
-        config LV_DISP_BACKLIGHT_PWM
-            bool
-            prompt "PWM control"
-            help
-                Display backlight is controlled by pulse-width modulation, allowing brightness settings.
-
-    endchoice
-
-    config LV_BACKLIGHT_ACTIVE_LVL
-        bool "Is backlight turn on with a HIGH (1) logic level?" if \
-            ( LV_PREDEFINED_DISPLAY_NONE && ! ( LV_TFT_DISPLAY_CONTROLLER_SH1107 || LV_TFT_DISPLAY_CONTROLLER_SSD1306 ) ) \
-            || LV_PREDEFINED_DISPLAY_RPI_MPI3501
-        depends on !LV_DISP_BACKLIGHT_OFF
-        default y if LV_PREDEFINED_DISPLAY_M5STACK
-        default y if LV_PREDEFINED_DISPLAY_ERTFT0356
-        default y if LV_PREDEFINED_DISPLAY_TTGO
-        default y if LV_PREDEFINED_DISPLAY_TTGO_CAMERA_PLUS
-        default y if LV_PREDEFINED_DISPLAY_WT32_SC01
-        help
-            Some backlights are turned on with a high signal, others held low.
-            If enabled, a value of 1 will be sent to the display to enable the backlight,
-            otherwise a 0 will be expected to enable it.
-
-    config LV_DISP_PIN_BCKL
-        int "GPIO for Backlight Control" if \
-            ( LV_PREDEFINED_DISPLAY_NONE && ! ( LV_TFT_DISPLAY_CONTROLLER_SH1107 || LV_TFT_DISPLAY_CONTROLLER_SSD1306 ) ) \
-            || LV_PREDEFINED_DISPLAY_RPI_MPI3501
-        depends on !LV_DISP_BACKLIGHT_OFF
-        default 23 if LV_PREDEFINED_PINS_38V1
-        default 26 if LV_PREDEFINED_PINS_38V4
-        default 32 if LV_PREDEFINED_DISPLAY_M5STACK
-        default 5 if LV_PREDEFINED_DISPLAY_WROVER4
-        default 2 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
-        default 27 if LV_PREDEFINED_DISPLAY_ERTFT0356
-        default 0  if LV_PREDEFINED_PINS_TKOALA
-        default 4 if LV_PREDEFINED_DISPLAY_TTGO
-        default 2 if LV_PREDEFINED_DISPLAY_TTGO_CAMERA_PLUS
-        default 23 if LV_PREDEFINED_DISPLAY_WT32_SC01
-        default -1
-
-        help
-            Configure the display BCLK (LED) pin here.
-
-    config LV_I2C
-        bool
-        default y if LV_I2C_DISPLAY
-
-    config LV_I2C_DISPLAY_PORT
-        int
-        default 1 if LV_I2C_DISPLAY_PORT_1
-        default 0
-
 endmenu

lvgl_tft/calepd_epaper.cpp

@@ -0,0 +1,95 @@
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "calepd_epaper.h"
+
+// NOTE: This needs Epdiy component https://github.com/vroland/epdiy
+// Run idf.py menuconfig-> Component Config -> E-Paper driver and select:
+// Display type: LILIGO 4.7 ED047TC1
+// Board: LILIGO T5-4.7 Epaper
+// In the same section Component Config -> ESP32 Specifics -> Enable PSRAM
+//#include "parallel/ED047TC1.h"
+//Ed047TC1 display;
+
+// SPI Generic epapers (Goodisplay/ Waveshare)
+// Select the right class for your SPI epaper: https://github.com/martinberlin/cale-idf/wiki
+//#include <gdew0583t7.h>
+#include <goodisplay/gdey027T91.h>
+EpdSpi io;
+Gdey027T91 display(io);
+
+/** test Display dimensions
+ * Do not forget to set: menuconfig -> Components -> LVGL configuration
+ * Max. Horizontal resolution 264 -> WIDTH of your epaper
+ * Max. Vertical resolution   176 -> HEIGHT
+ */
+
+/*********************
+ *      DEFINES
+ *********************/
+#define TAG "CalEPD"
+
+uint16_t flushcalls = 0;
+
+void delay(uint32_t period_ms) {
+    vTaskDelay(pdMS_TO_TICKS(period_ms));
+}
+
+/* Display initialization routine */
+void calepd_init(void)
+{
+    printf("calepd_init\n");
+    display.init();
+    display.setMonoMode(true);
+    display.setRotation(3);
+    // Partial update test
+    /* display.fillRect(1,10, display.width(), 20, EPD_BLACK);
+    display.updateWindow(1,10, display.width(), 20); */
+    printf("calEPD done with SPI init\n");
+    // Clear screen
+    //display.update();
+}
+
+/* Required by LVGL */
+void calepd_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map)
+{
+    ++flushcalls;
+    printf("flush %d x:%d y:%d w:%d h:%d\n", flushcalls,area->x1,area->y1,lv_area_get_width(area),lv_area_get_height(area));
+
+    // Full update
+    if (lv_area_get_width(area)==display.width() && lv_area_get_height(area)==display.height()) {
+      display.update();
+    } else {
+      // Partial update:
+      //display.update(); // Uncomment to disable partial update
+      
+      display.updateWindow(area->x1,area->y1,lv_area_get_width(area),lv_area_get_height(area));
+      //delay(10);
+    }
+    
+    /* IMPORTANT!!!
+     * Inform the graphics library that you are ready with the flushing */
+    lv_disp_flush_ready(drv);
+}
+
+/* Called for each pixel */
+void calepd_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf,
+    lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
+    lv_color_t color, lv_opa_t opa)
+{
+    // Test using RGB232
+    int16_t epd_color = EPD_WHITE;
+
+    // Color setting use: RGB232
+    // Only monochrome:All what is not white, turn black
+    if (color.full<254) {
+    //if (color.ch.red < 7 && color.ch.green < 7 && color.ch.blue < 7) {
+        epd_color = EPD_BLACK;        
+    }
+    display.drawPixel((int16_t)x, (int16_t)y, epd_color);
+
+    //If not drawing anything: Debug to see if this function is called:
+    //printf("set_px %d %d R:%d G:%d B:%d\n",(int16_t)x,(int16_t)y, color.ch.red, color.ch.green, color.ch.blue);
+    
+}

lvgl_tft/calepd_epaper.h

@@ -0,0 +1,38 @@
+/**
+ * Display class for generic e-Paper driven by EPDiy class
+*/
+#ifndef CALEPD_H
+#define CALEPD_H
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#define EPDIY_COLUMNS          (LV_HOR_RES_MAX / 8)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+ #include "lvgl/lvgl.h"
+#endif
+#include "sdkconfig.h"
+
+/* Configure your display */
+void calepd_init(void);
+
+/* LVGL callbacks */
+void calepd_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map);
+
+/* Only for monochrome displays. But we use epdiy_set_px also for epapers */
+//void epdiy_rounder(lv_disp_drv_t *disp_drv, lv_area_t *area);
+void calepd_set_px_cb(lv_disp_drv_t *disp_drv, uint8_t *buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y, lv_color_t color, lv_opa_t opa);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+
+#endif /* EPDIY_H */

lvgl_tft/disp_driver.c

@@ -4,15 +4,18 @@
 
 #include "disp_driver.h"
 #include "disp_spi.h"
-#include "esp_lcd_backlight.h"
-#include "sdkconfig.h"
 
-void *disp_driver_init(void)
+
+void disp_driver_init(void)
 {
 #if defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9341
     ili9341_init();
 #elif defined CONFIG_LV_EPAPER_EPDIY_DISPLAY_CONTROLLER
     epdiy_init();
+#elif defined CONFIG_LV_EPAPER_CALEPD_DISPLAY_CONTROLLER
+    calepd_init();
+#elif defined CONFIG_LV_SHARP_DISPLAY_CONTROLLER
+    sharp_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481
     ili9481_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488
@@ -43,35 +46,6 @@ void *disp_driver_init(void)
    jd79653a_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D
    uc8151d_init();
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C
-    ili9163c_init();
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544
-    pcd8544_init();
-#endif
-
-    // We still use menuconfig for these settings
-    // It will be set up during runtime in the future
-#if (defined(CONFIG_LV_DISP_BACKLIGHT_SWITCH) || defined(CONFIG_LV_DISP_BACKLIGHT_PWM))
-    const disp_backlight_config_t bckl_config = {
-        .gpio_num = CONFIG_LV_DISP_PIN_BCKL,
-#if defined CONFIG_LV_DISP_BACKLIGHT_PWM
-        .pwm_control = true,
-#else
-        .pwm_control = false,
-#endif
-#if defined CONFIG_LV_BACKLIGHT_ACTIVE_LVL
-        .output_invert = false, // Backlight on high
-#else
-        .output_invert = true, // Backlight on low
-#endif
-        .timer_idx = 0,
-        .channel_idx = 0 // @todo this prevents us from having two PWM controlled displays
-    };
-    disp_backlight_h bckl_handle = disp_backlight_new(&bckl_config);
-    disp_backlight_set(bckl_handle, 100);
-    return bckl_handle;
-#else
-    return NULL;
 #endif
 }
 
@@ -81,6 +55,10 @@ void disp_driver_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t *
     ili9341_flush(drv, area, color_map);
 #elif defined CONFIG_LV_EPAPER_EPDIY_DISPLAY_CONTROLLER
     epdiy_flush(drv, area, color_map);
+#elif defined CONFIG_LV_EPAPER_CALEPD_DISPLAY_CONTROLLER
+    calepd_flush(drv, area, color_map); 
+#elif defined CONFIG_LV_SHARP_DISPLAY_CONTROLLER
+    sharp_flush(drv, area, color_map);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481
     ili9481_flush(drv, area, color_map);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488
@@ -111,10 +89,6 @@ void disp_driver_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t *
     jd79653a_lv_fb_flush(drv, area, color_map);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D
     uc8151d_lv_fb_flush(drv, area, color_map);
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C
-    ili9163c_flush(drv, area, color_map);
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544
-    pcd8544_flush(drv, area, color_map);
 #endif
 }
 
@@ -131,8 +105,8 @@ void disp_driver_rounder(lv_disp_drv_t * disp_drv, lv_area_t * area)
     jd79653a_lv_rounder_cb(disp_drv, area);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D
     uc8151d_lv_rounder_cb(disp_drv, area);
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544
+#elif defined CONFIG_LV_SHARP_DISPLAY_CONTROLLER
-    pcd8544_rounder(disp_drv, area);
+    sharp_rounder(disp_drv, area);
 #endif
 }
 
@@ -143,6 +117,10 @@ void disp_driver_set_px(lv_disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_
     ssd1306_set_px_cb(disp_drv, buf, buf_w, x, y, color, opa);
 #elif defined CONFIG_LV_EPAPER_EPDIY_DISPLAY_CONTROLLER
     epdiy_set_px_cb(disp_drv, buf, buf_w, x, y, color, opa);
+#elif defined CONFIG_LV_EPAPER_CALEPD_DISPLAY_CONTROLLER
+    calepd_set_px_cb(disp_drv, buf, buf_w, x, y, color, opa);
+#elif defined CONFIG_LV_SHARP_DISPLAY_CONTROLLER
+    sharp_set_px_cb(disp_drv, buf, buf_w, x, y, color, opa);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_SH1107
     sh1107_set_px_cb(disp_drv, buf, buf_w, x, y, color, opa);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_IL3820
@@ -151,7 +129,5 @@ void disp_driver_set_px(lv_disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_
     jd79653a_lv_set_fb_cb(disp_drv, buf, buf_w, x, y, color, opa);
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D
     uc8151d_lv_set_fb_cb(disp_drv, buf, buf_w, x, y, color, opa);
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544
-   pcd8544_set_px_cb(disp_drv, buf, buf_w, x, y, color, opa);
 #endif
 }

lvgl_tft/disp_driver.h

@@ -22,6 +22,11 @@ extern "C" {
 #include "ili9341.h"
 #elif defined CONFIG_LV_EPAPER_EPDIY_DISPLAY_CONTROLLER
 #include "lvgl_tft/epdiy_epaper.h"
+#elif defined CONFIG_LV_EPAPER_CALEPD_DISPLAY_CONTROLLER
+#include "lvgl_tft/calepd_epaper.h"
+#elif defined CONFIG_LV_SHARP_DISPLAY_CONTROLLER
+#include "lvgl_tft/sharp_mip.h"
+
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481
 #include "ili9481.h"
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488
@@ -52,10 +57,6 @@ extern "C" {
 #include "jd79653a.h"
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D
 #include "uc8151d.h"
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C
-#include "ili9163c.h"
-#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544
-#include "pcd8544.h"
 #endif
 
 /*********************
@@ -71,7 +72,7 @@ extern "C" {
  **********************/
 
 /* Initialize display */
-void *disp_driver_init(void);
+void disp_driver_init(void);
 
 /* Display flush callback */
 void disp_driver_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);

lvgl_tft/disp_spi.c

@@ -310,12 +310,7 @@ static void IRAM_ATTR spi_ready(spi_transaction_t *trans)
         disp = lv_refr_get_disp_refreshing();
 #endif
 
-#if LVGL_VERSION_MAJOR < 8
         lv_disp_flush_ready(&disp->driver);
-#else
-        lv_disp_flush_ready(disp->driver);
-#endif
-
     }
 
     if (chained_post_cb) {

lvgl_tft/epdiy_epaper.cpp

@@ -0,0 +1,125 @@
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "epdiy_epaper.h"
+#include "epdiy.h"
+//#include "epd_highlevel.h"
+
+EpdiyHighlevelState hl;
+uint16_t flushcalls = 0;
+uint8_t * framebuffer;
+uint8_t temperature = 25;
+bool init = true;
+// MODE_DU: Fast monochrome | MODE_GC16 slow with 16 grayscales
+enum EpdDrawMode updateMode = MODE_DU;
+
+/* Display initialization routine */
+void epdiy_init(void)
+{
+    epd_init(&epd_board_v7, &ED097TC2, EPD_LUT_64K);
+  // Set VCOM for boards that allow to set this in software (in mV).
+  // This will print an error if unsupported. In this case,
+  // set VCOM using the hardware potentiometer and delete this line.
+    epd_set_vcom(1760);
+
+    // Only for older versions epdiy
+    //epd_init(EPD_OPTIONS_DEFAULT);
+    hl = epd_hl_init(EPD_BUILTIN_WAVEFORM);
+    framebuffer = epd_hl_get_framebuffer(&hl);    
+    epd_poweron();
+    //Clear all always in init:
+    epd_fullclear(&hl, temperature);
+}
+
+/* Suggested by @kisvegabor https://forum.lvgl.io/t/lvgl-port-to-be-used-with-epaper-displays/5630/26 */
+void buf_area_to_framebuffer(const lv_area_t *area, const uint8_t *image_data) {
+  assert(framebuffer != NULL);
+  uint8_t *fb_ptr = &framebuffer[area->y1 * epd_width() / 2 + area->x1 / 2];
+  lv_coord_t img_w = lv_area_get_width(area);
+  for(uint32_t y = area->y1; y < area->y2; y++) {
+      memcpy(fb_ptr, image_data, img_w / 2);
+      fb_ptr += epd_width() / 2;
+      image_data += img_w / 2;
+  }
+}
+
+/* A copy from epd_copy_to_framebuffer with temporary lenght prediction */
+void buf_copy_to_framebuffer(EpdRect image_area, const uint8_t *image_data) {
+  assert(framebuffer != NULL);
+
+  for (uint32_t i = 0; i < image_area.width * image_area.height; i++) {
+    uint8_t val = (i % 2) ? (image_data[i / 2] & 0xF0) >> 4
+                                    : image_data[i / 2] & 0x0F;
+    int xx = image_area.x + i % image_area.width;
+    if (xx < 0 || xx >= epd_width()) {
+      continue;
+    }
+    int yy = image_area.y + i / image_area.width;
+    if (yy < 0 || yy >= epd_height()) {
+      continue;
+    }
+    uint8_t *buf_ptr = &framebuffer[yy * epd_width() / 2 + xx / 2];
+    if (xx % 2) {
+      *buf_ptr = (*buf_ptr & 0x0F) | (val << 4);
+    } else {
+      *buf_ptr = (*buf_ptr & 0xF0) | val;
+    }
+  }
+}
+
+/* Required by LVGL. Sends the color_map to the screen with a partial update  */
+void epdiy_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map)
+{
+    ++flushcalls;
+    uint16_t w = lv_area_get_width(area);
+    uint16_t h = lv_area_get_height(area);
+
+    EpdRect update_area = {
+        .x = (uint16_t)area->x1,
+        .y = (uint16_t)area->y1,
+        .width = w,
+        .height = h
+    };
+
+    uint8_t* buf = (uint8_t *) color_map;
+    // Buffer debug
+    /* 
+    for (int index=0; index<400; index++) {
+        printf("%x ", buf[index]);
+    } */
+
+    // UNCOMMENT only one of this options
+    // SAFE Option with EPDiy copy of epd_copy_to_framebuffer
+    buf_copy_to_framebuffer(update_area, buf);
+
+    //Faster mode suggested in LVGL forum (Leaves ghosting&prints bad sections / experimental) NOTE: Do NOT use in production
+    //buf_area_to_framebuffer(area, buf);
+
+    epd_hl_update_area(&hl, updateMode, temperature, update_area); //update_area
+
+    //printf("epdiy_flush %d x:%d y:%d w:%d h:%d\n", flushcalls,(uint16_t)area->x1,(uint16_t)area->y1,w,h);
+    /* Inform the graphics library that you are ready with the flushing */
+    lv_disp_flush_ready(drv);
+}
+
+/* 
+ * Called for each pixel. Designed with the idea to fill the buffer directly, not to set each pixel, see LVGL Forum (buf_area_to_framebuffer)
+*/
+void epdiy_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf,
+    lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
+    lv_color_t color, lv_opa_t opa)
+{
+    // Test using RGB232
+    int16_t epd_color = 255;
+    if ((int16_t)color.full < 254) {
+        epd_color = (updateMode==MODE_DU) ? 0 : (int16_t)color.full / 3;
+    }
+
+    //Instead of using epd_draw_pixel: Set pixel directly in *buf that comes afterwards in flush as *color_map
+    uint16_t idx = (int16_t)y * buf_w / 2 + (int16_t)x / 2;
+    if (x % 2) {
+        buf[idx] = (buf[idx] & 0x0F) | (epd_color & 0xF0);
+    } else {
+        buf[idx] = (buf[idx] & 0xF0) | (epd_color >> 4);
+    }
+}

lvgl_tft/epdiy_epaper_v1.cpp

@@ -0,0 +1,92 @@
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "epdiy_epaper.h"
+
+#include "epd_driver.h"
+#include "epd_highlevel.h"
+
+/**************************************************************************************************
+ *      NOTE: This file iis the first version that writes directly on the set_px callback
+ *            each pixel into the epaper display buffer. The second version is not epdiy_epaper.cpp
+ *            It writes *buf and then it comes as *color_map on the flush callback.
+ *            Feel free to experiment with this 2. epdiy_epaper.cpp works better to make a small UX
+ **************************************************************************************************/
+#define TAG "EPDIY"
+EpdiyHighlevelState hl;
+uint16_t flushcalls = 0;
+uint8_t * framebuffer;
+uint8_t temperature = 25;
+
+/* Display initialization routine */
+void epdiy_init(void)
+{
+    epd_init(EPD_OPTIONS_DEFAULT);
+    hl = epd_hl_init(EPD_BUILTIN_WAVEFORM);
+    framebuffer = epd_hl_get_framebuffer(&hl);    
+    epd_poweron();
+    //Clear all always in init?
+    //epd_fullclear(&hl, temperature);
+}
+
+uint16_t xo = 0;
+uint16_t yo = 0;
+
+/* Required by LVGL */
+void epdiy_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map)
+{
+    ++flushcalls;
+    xo = area->x1;
+    yo = area->y1;
+    uint16_t w = lv_area_get_width(area);
+    uint16_t h = lv_area_get_height(area);
+
+    EpdRect update_area = {
+        .x = xo,
+        .y = yo,
+        .width = w,
+        .height = h,
+    };
+
+    epd_hl_update_area(&hl, MODE_GC16, temperature, update_area); //update_area
+
+    printf("epdiy_flush %d x:%d y:%d w:%d h:%d\n", flushcalls,xo,yo,w,h);
+    /* Inform the graphics library that you are ready with the flushing */
+    lv_disp_flush_ready(drv);
+}
+
+/* 
+ * Called for each pixel. Designed with the idea to fill the buffer directly, not to set each pixel, see:
+ * https://forum.lvgl.io/t/lvgl-port-to-be-used-with-epaper-displays/5630/3
+*/
+void epdiy_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf,
+    lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
+    lv_color_t color, lv_opa_t opa)
+{
+    // Debug where x y is printed, not all otherwise is too much Serial
+    /* if ((int16_t)y%10==0 && flushcalls>0){
+        if ((int16_t)x%2==0){
+            printf("x%d y%d\n", (int16_t)x, (int16_t)y);
+        }
+    }
+    */
+
+    // Test using RGB232
+    int16_t epd_color = 255;
+    if ((int16_t)color.full<250) {
+        epd_color = (int16_t)color.full/3;
+    }
+
+    int16_t x1 = (int16_t)x;
+    int16_t y1 = (int16_t)y;
+
+    //Instead of using epd_draw_pixel: Set pixel directly in buffer
+    //epd_draw_pixel(x1, y1, epd_color, framebuffer);
+    uint8_t *buf_ptr = &framebuffer[y1 * buf_w / 2 + x1 / 2];
+    if (x % 2) {
+        *buf_ptr = (*buf_ptr & 0x0F) | (epd_color & 0xF0);
+    } else {
+        *buf_ptr = (*buf_ptr & 0xF0) | (epd_color >> 4);
+    }
+}

lvgl_tft/hx8357.c

@@ -160,19 +160,21 @@ static uint8_t displayType = HX8357D;
 void hx8357_init(void)
 {
 	//Initialize non-SPI GPIOs
-    gpio_pad_select_gpio(HX8357_DC);
+        gpio_pad_select_gpio(HX8357_DC);
 	gpio_set_direction(HX8357_DC, GPIO_MODE_OUTPUT);
-
+        gpio_pad_select_gpio(HX8357_RST);
-#if HX8357_USE_RST
-    gpio_pad_select_gpio(HX8357_RST);
 	gpio_set_direction(HX8357_RST, GPIO_MODE_OUTPUT);
 
+#if HX8357_ENABLE_BACKLIGHT_CONTROL
+        gpio_pad_select_gpio(HX8357_BCKL);
+	gpio_set_direction(HX8357_BCKL, GPIO_MODE_OUTPUT);
+#endif
+
 	//Reset the display
 	gpio_set_level(HX8357_RST, 0);
 	vTaskDelay(10 / portTICK_RATE_MS);
 	gpio_set_level(HX8357_RST, 1);
 	vTaskDelay(120 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "Initialization.");
 
@@ -203,6 +205,8 @@ void hx8357_init(void)
 #else
     hx8357_send_cmd(HX8357_INVOFF);
 #endif
+
+	hx8357_enable_backlight(true);
 }
 
 
@@ -239,6 +243,23 @@ void hx8357_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
 	hx8357_send_color((void*)color_map, size * 2);
 }
 
+void hx8357_enable_backlight(bool backlight)
+{
+#if HX8357_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGD(TAG, "%s backlight.\n", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (HX8357_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(HX8357_BCKL, tmp);
+#endif
+}
+
+
 void hx8357_set_rotation(uint8_t r)
 {
 	r = r & 3; // can't be higher than 3

lvgl_tft/hx8357.h

@@ -35,10 +35,18 @@ extern "C" {
  /*********************
  *      DEFINES
  *********************/
-#define HX8357_DC             CONFIG_LV_DISP_PIN_DC
+#define HX8357_DC   CONFIG_LV_DISP_PIN_DC
-#define HX8357_RST            CONFIG_LV_DISP_PIN_RST
+#define HX8357_RST  CONFIG_LV_DISP_PIN_RST
-#define HX8357_USE_RST        CONFIG_LV_DISP_USE_RST
+#define HX8357_BCKL CONFIG_LV_DISP_PIN_BCKL
-#define HX8357_INVERT_COLORS  CONFIG_LV_INVERT_COLORS
+
+#define HX8357_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+#define HX8357_INVERT_COLORS            CONFIG_LV_INVERT_COLORS
+
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define HX8357_BCKL_ACTIVE_LVL 1
+#else
+  #define HX8357_BCKL_ACTIVE_LVL 0
+#endif
 
 
 /*******************
@@ -127,6 +135,7 @@ extern "C" {
 
 void hx8357_init(void);
 void hx8357_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void hx8357_enable_backlight(bool backlight);
 void hx8357_set_rotation(uint8_t r);
 
 /**********************

lvgl_tft/il3820.c

@@ -198,20 +198,16 @@ void il3820_init(void)
     /* Initialize non-SPI GPIOs */
     gpio_pad_select_gpio(IL3820_DC_PIN);
     gpio_set_direction(IL3820_DC_PIN, GPIO_MODE_OUTPUT);
-
-    gpio_pad_select_gpio(IL3820_BUSY_PIN);
-    gpio_set_direction(IL3820_BUSY_PIN,  GPIO_MODE_INPUT);
-
-#if IL3820_USE_RST
     gpio_pad_select_gpio(IL3820_RST_PIN);
     gpio_set_direction(IL3820_RST_PIN, GPIO_MODE_OUTPUT);
+    gpio_pad_select_gpio(IL3820_BUSY_PIN);
+    gpio_set_direction(IL3820_BUSY_PIN,  GPIO_MODE_INPUT);
 
     /* Harware reset */
     gpio_set_level( IL3820_RST_PIN, 0);
     vTaskDelay(IL3820_RESET_DELAY / portTICK_RATE_MS);
     gpio_set_level( IL3820_RST_PIN, 1);
     vTaskDelay(IL3820_RESET_DELAY / portTICK_RATE_MS);
-#endif
 
     /* Software reset */
     il3820_write_cmd(IL3820_CMD_SW_RESET, NULL, 0);

lvgl_tft/il3820.h

@@ -28,7 +28,6 @@ extern "C"
 
 #define IL3820_DC_PIN           CONFIG_LV_DISP_PIN_DC
 #define IL3820_RST_PIN          CONFIG_LV_DISP_PIN_RST
-#define IL3820_USE_RST          CONFIG_LV_DISP_USE_RST
 #define IL3820_BUSY_PIN         CONFIG_LV_DISP_PIN_BUSY
 #define IL3820_BUSY_LEVEL       1
 

lvgl_tft/ili9341.c

@@ -80,20 +80,31 @@ void ili9341_init(void)
 		{0, {0}, 0xff},
 	};
 
-	//Initialize non-SPI GPIOs
+#if ILI9341_BCKL == 15
-    gpio_pad_select_gpio(ILI9341_DC);
+	gpio_config_t io_conf;
-	gpio_set_direction(ILI9341_DC, GPIO_MODE_OUTPUT);
+    io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    io_conf.pin_bit_mask = GPIO_SEL_15;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+    gpio_config(&io_conf);
+#endif
 
-#if ILI9341_USE_RST
+	//Initialize non-SPI GPIOs
-    gpio_pad_select_gpio(ILI9341_RST);
+        gpio_pad_select_gpio(ILI9341_DC);
+	gpio_set_direction(ILI9341_DC, GPIO_MODE_OUTPUT);
+        gpio_pad_select_gpio(ILI9341_RST);
 	gpio_set_direction(ILI9341_RST, GPIO_MODE_OUTPUT);
 
+#if ILI9341_ENABLE_BACKLIGHT_CONTROL
+    gpio_pad_select_gpio(ILI9341_BCKL);
+    gpio_set_direction(ILI9341_BCKL, GPIO_MODE_OUTPUT);
+#endif
 	//Reset the display
 	gpio_set_level(ILI9341_RST, 0);
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(ILI9341_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "Initialization.");
 
@@ -108,7 +119,9 @@ void ili9341_init(void)
 		cmd++;
 	}
 
-    ili9341_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
+	ili9341_enable_backlight(true);
+
+        ili9341_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 
 #if ILI9341_INVERT_COLORS == 1
 	ili9341_send_cmd(0x21);
@@ -140,10 +153,29 @@ void ili9341_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
 
 	/*Memory write*/
 	ili9341_send_cmd(0x2C);
+
+
 	uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
+
 	ili9341_send_color((void*)color_map, size * 2);
 }
 
+void ili9341_enable_backlight(bool backlight)
+{
+#if ILI9341_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (ILI9341_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(ILI9341_BCKL, tmp);
+#endif
+}
+
 void ili9341_sleep_in()
 {
 	uint8_t data[] = {0x08};
@@ -196,8 +228,6 @@ static void ili9341_set_orientation(uint8_t orientation)
 
 #if defined CONFIG_LV_PREDEFINED_DISPLAY_M5STACK
     uint8_t data[] = {0x68, 0x68, 0x08, 0x08};
-#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_M5CORE2)
-	uint8_t data[] = {0x08, 0x88, 0x28, 0xE8};
 #elif defined (CONFIG_LV_PREDEFINED_DISPLAY_WROVER4)
     uint8_t data[] = {0x6C, 0xEC, 0xCC, 0x4C};
 #elif defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)

lvgl_tft/ili9341.h

@@ -20,15 +20,23 @@ extern "C" {
 #else
 #include "lvgl/lvgl.h"
 #endif
-
+#include "../lvgl_helpers.h"
-#include "sdkconfig.h"
 
 /*********************
  *      DEFINES
  *********************/
-#define ILI9341_DC        CONFIG_LV_DISP_PIN_DC
+#define ILI9341_DC   CONFIG_LV_DISP_PIN_DC
-#define ILI9341_USE_RST   CONFIG_LV_DISP_USE_RST
+#define ILI9341_RST  CONFIG_LV_DISP_PIN_RST
-#define ILI9341_RST       CONFIG_LV_DISP_PIN_RST
+#define ILI9341_BCKL CONFIG_LV_DISP_PIN_BCKL
+
+#define ILI9341_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define ILI9341_BCKL_ACTIVE_LVL 1
+#else
+  #define ILI9341_BCKL_ACTIVE_LVL 0
+#endif
+
 #define ILI9341_INVERT_COLORS CONFIG_LV_INVERT_COLORS
 
 /**********************
@@ -41,6 +49,7 @@ extern "C" {
 
 void ili9341_init(void);
 void ili9341_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void ili9341_enable_backlight(bool backlight);
 void ili9341_sleep_in(void);
 void ili9341_sleep_out(void);
 

lvgl_tft/ili9481.c

@@ -76,17 +76,19 @@ void ili9481_init(void)
     //Initialize non-SPI GPIOs
     gpio_pad_select_gpio(ILI9481_DC);
     gpio_set_direction(ILI9481_DC, GPIO_MODE_OUTPUT);
-
-#if ILI9481_USE_RST
     gpio_pad_select_gpio(ILI9481_RST);
     gpio_set_direction(ILI9481_RST, GPIO_MODE_OUTPUT);
 
+#if ILI9481_ENABLE_BACKLIGHT_CONTROL
+    gpio_pad_select_gpio(ILI9481_BCKL);
+    gpio_set_direction(ILI9481_BCKL, GPIO_MODE_OUTPUT);
+#endif
+
     //Reset the display
     gpio_set_level(ILI9481_RST, 0);
     vTaskDelay(100 / portTICK_RATE_MS);
     gpio_set_level(ILI9481_RST, 1);
     vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
     ESP_LOGI(TAG, "ILI9481 initialization.");
 
@@ -105,6 +107,8 @@ void ili9481_init(void)
         cmd++;
     }
 
+    ili9481_enable_backlight(true);
+
     ili9481_set_orientation(ILI9481_DISPLAY_ORIENTATION);
 }
 
@@ -164,6 +168,22 @@ void ili9481_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
     heap_caps_free(mybuf);
 }
 
+void ili9481_enable_backlight(bool backlight)
+{
+#if ILI9481_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (ILI9481_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(ILI9481_BCKL, tmp);
+#endif
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/

lvgl_tft/ili9481.h

@@ -25,12 +25,19 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-#define ILI9481_DC                  CONFIG_LV_DISP_PIN_DC
+#define ILI9481_DC   CONFIG_LV_DISP_PIN_DC
-#define ILI9481_RST                 CONFIG_LV_DISP_PIN_RST
+#define ILI9481_RST  CONFIG_LV_DISP_PIN_RST
-#define ILI9481_USE_RST             CONFIG_LV_DISP_USE_RST
+#define ILI9481_BCKL CONFIG_LV_DISP_PIN_BCKL
-#define ILI9481_INVERT_COLORS       CONFIG_LV_INVERT_COLORS
+
+#define ILI9481_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+#define ILI9481_INVERT_COLORS CONFIG_LV_INVERT_COLORS
 #define ILI9481_DISPLAY_ORIENTATION CONFIG_LV_DISPLAY_ORIENTATION
 
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define ILI9481_BCKL_ACTIVE_LVL 1
+#else
+  #define ILI9481_BCKL_ACTIVE_LVL 0
+#endif
 
 /*******************
  * ILI9481 REGS
@@ -110,6 +117,7 @@ extern "C" {
 
 void ili9481_init(void);
 void ili9481_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void ili9481_enable_backlight(bool backlight);
 
 /**********************
  *      MACROS

lvgl_tft/ili9486.c

@@ -65,20 +65,32 @@ void ili9486_init(void)
 		{0x00, {0}, 0xff},
 	};
 
-	//Initialize non-SPI GPIOs
+#if ILI9486_BCKL == 15
-    gpio_pad_select_gpio(ILI9486_DC);
+    gpio_config_t io_conf;
-	gpio_set_direction(ILI9486_DC, GPIO_MODE_OUTPUT);
+    io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    io_conf.pin_bit_mask = GPIO_SEL_15;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+    gpio_config(&io_conf);
+#endif
 
-#if ILI9486_USE_RST
+	//Initialize non-SPI GPIOs
-    gpio_pad_select_gpio(ILI9486_RST);
+        gpio_pad_select_gpio(ILI9486_DC);
+	gpio_set_direction(ILI9486_DC, GPIO_MODE_OUTPUT);
+        gpio_pad_select_gpio(ILI9486_RST);
 	gpio_set_direction(ILI9486_RST, GPIO_MODE_OUTPUT);
 
+#if ILI9486_ENABLE_BACKLIGHT_CONTROL
+    gpio_pad_select_gpio(ILI9486_BCKL);
+    gpio_set_direction(ILI9486_BCKL, GPIO_MODE_OUTPUT);
+#endif
+
 	//Reset the display
 	gpio_set_level(ILI9486_RST, 0);
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(ILI9486_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "ILI9486 Initialization.");
 
@@ -93,7 +105,9 @@ void ili9486_init(void)
 		cmd++;
 	}
 
-    ili9486_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
+	ili9486_enable_backlight(true);
+
+        ili9486_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 }
 
 void ili9486_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
@@ -125,6 +139,22 @@ void ili9486_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
     ili9486_send_color((void*) color_map, size * 2);
 }
 
+void ili9486_enable_backlight(bool backlight)
+{
+#if ILI9486_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (ILI9486_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(ILI9486_BCKL, tmp);
+#endif
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/

lvgl_tft/ili9486.h

@@ -25,10 +25,17 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-#define ILI9486_DC      CONFIG_LV_DISP_PIN_DC
+#define ILI9486_DC   CONFIG_LV_DISP_PIN_DC
-#define ILI9486_RST     CONFIG_LV_DISP_PIN_RST
+#define ILI9486_RST  CONFIG_LV_DISP_PIN_RST
-#define ILI9486_USE_RST CONFIG_LV_DISP_USE_RST
+#define ILI9486_BCKL CONFIG_LV_DISP_PIN_BCKL
 
+#define ILI9486_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define ILI9486_BCKL_ACTIVE_LVL 1
+#else
+  #define ILI9486_BCKL_ACTIVE_LVL 0
+#endif
 
 /**********************
  *      TYPEDEFS
@@ -40,6 +47,7 @@ extern "C" {
 
 void ili9486_init(void);
 void ili9486_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void ili9486_enable_backlight(bool backlight);
 
 /**********************
  *      MACROS

lvgl_tft/ili9488.c

@@ -76,19 +76,21 @@ void ili9488_init(void)
 	};
 
 	//Initialize non-SPI GPIOs
-    gpio_pad_select_gpio(ILI9488_DC);
+        gpio_pad_select_gpio(ILI9488_DC);
 	gpio_set_direction(ILI9488_DC, GPIO_MODE_OUTPUT);
-
+        gpio_pad_select_gpio(ILI9488_RST);
-#if ILI9488_USE_RST
-    gpio_pad_select_gpio(ILI9488_RST);
 	gpio_set_direction(ILI9488_RST, GPIO_MODE_OUTPUT);
 
+#if ILI9488_ENABLE_BACKLIGHT_CONTROL
+        gpio_pad_select_gpio(ILI9488_BCKL);
+	gpio_set_direction(ILI9488_BCKL, GPIO_MODE_OUTPUT);
+#endif
+
 	//Reset the display
 	gpio_set_level(ILI9488_RST, 0);
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(ILI9488_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "ILI9488 initialization.");
 
@@ -107,7 +109,9 @@ void ili9488_init(void)
 		cmd++;
 	}
 
-    ili9488_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
+	ili9488_enable_backlight(true);
+
+        ili9488_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 }
 
 // Flush function based on mvturnho repo
@@ -166,6 +170,22 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
 	heap_caps_free(mybuf);
 }
 
+void ili9488_enable_backlight(bool backlight)
+{
+#if ILI9488_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (ILI9488_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(ILI9488_BCKL, tmp);
+#endif
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/

lvgl_tft/ili9488.h

@@ -25,9 +25,17 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-#define ILI9488_DC      CONFIG_LV_DISP_PIN_DC
+#define ILI9488_DC   CONFIG_LV_DISP_PIN_DC
-#define ILI9488_RST     CONFIG_LV_DISP_PIN_RST
+#define ILI9488_RST  CONFIG_LV_DISP_PIN_RST
-#define ILI9488_USE_RST CONFIG_LV_DISP_USE_RSTS
+#define ILI9488_BCKL CONFIG_LV_DISP_PIN_BCKL
+
+#define ILI9488_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define ILI9488_BCKL_ACTIVE_LVL 1
+#else
+  #define ILI9488_BCKL_ACTIVE_LVL 0
+#endif
 
 /*******************
  * ILI9488 REGS
@@ -146,6 +154,7 @@ typedef struct {
 
 void ili9488_init(void);
 void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void ili9488_enable_backlight(bool backlight);
 
 /**********************
  *      MACROS

lvgl_tft/ra8875.c

@@ -148,18 +148,29 @@ void ra8875_init(void)
 
     ESP_LOGI(TAG, "Initializing RA8875...");
 
-    // Initialize non-SPI GPIOs
+#if (CONFIG_LV_DISP_PIN_BCKL == 15)
+    gpio_config_t io_conf;
+    io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    io_conf.pin_bit_mask = GPIO_SEL_15;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+    gpio_config(&io_conf);
+#endif
 
-#if RA8875_USE_RST
+    // Initialize non-SPI GPIOs
     gpio_pad_select_gpio(RA8875_RST);
     gpio_set_direction(RA8875_RST, GPIO_MODE_OUTPUT);
+#ifdef CONFIG_LV_DISP_PIN_BCKL
+    gpio_pad_select_gpio(CONFIG_LV_DISP_PIN_BCKL);
+    gpio_set_direction(CONFIG_LV_DISP_PIN_BCKL, GPIO_MODE_OUTPUT);
+#endif
 
     // Reset the RA8875
     gpio_set_level(RA8875_RST, 0);
     vTaskDelay(DIV_ROUND_UP(100, portTICK_RATE_MS));
     gpio_set_level(RA8875_RST, 1);
     vTaskDelay(DIV_ROUND_UP(100, portTICK_RATE_MS));
-#endif
 
     // Initalize RA8875 clocks (SPI must be decelerated before initializing clocks)
     disp_spi_change_device_speed(SPI_CLOCK_SPEED_SLOW_HZ);
@@ -183,8 +194,28 @@ void ra8875_init(void)
         ESP_LOGW(TAG, "WARNING: Memory clear timed out; RA8875 may be unresponsive.");
     }
 
-    // Enable the display
+    // Enable the display and backlight
     ra8875_enable_display(true);
+    ra8875_enable_backlight(true);
+}
+
+void ra8875_enable_backlight(bool backlight)
+{
+#if CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+    ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+    #if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+        tmp = backlight ? 1 : 0;
+    #else
+        tmp = backlight ? 0 : 1;
+    #endif
+
+#ifdef CONFIG_LV_DISP_PIN_BCKL
+    gpio_set_level(CONFIG_LV_DISP_PIN_BCKL, tmp);
+#endif
+
+#endif
 }
 
 void ra8875_enable_display(bool enable)

lvgl_tft/ra8875.h

@@ -24,8 +24,7 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-#define RA8875_RST      CONFIG_LV_DISP_PIN_RST
+#define RA8875_RST  CONFIG_LV_DISP_PIN_RST
-#define RA8875_USE_RST  CONFIG_LV_DISP_USE_RST
 
 // System & Configuration Registers
 #define RA8875_REG_PWRR   (0x01)     // Power and Display Control Register (PWRR)
@@ -97,6 +96,7 @@ extern "C" {
  **********************/
 
 void ra8875_init(void);
+void ra8875_enable_backlight(bool backlight);
 void ra8875_enable_display(bool enable);
 void ra8875_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
 

lvgl_tft/sh1107.c

@@ -94,8 +94,6 @@ void sh1107_init(void)
 	//Initialize non-SPI GPIOs
         gpio_pad_select_gpio(SH1107_DC);
 	gpio_set_direction(SH1107_DC, GPIO_MODE_OUTPUT);
-
-#if SH1107_USE_RST
         gpio_pad_select_gpio(SH1107_RST);
 	gpio_set_direction(SH1107_RST, GPIO_MODE_OUTPUT);
 
@@ -104,7 +102,6 @@ void sh1107_init(void)
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(SH1107_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	//Send all the commands
 	uint16_t cmd = 0;

lvgl_tft/sh1107.h

@@ -25,9 +25,8 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-#define SH1107_DC       CONFIG_LV_DISP_PIN_DC
+#define SH1107_DC   CONFIG_LV_DISP_PIN_DC
-#define SH1107_RST      CONFIG_LV_DISP_PIN_RST
+#define SH1107_RST  CONFIG_LV_DISP_PIN_RST
-#define SH1107_USE_RST  CONFIG_LV_DISP_USE_RST
 
 /**********************
  *      TYPEDEFS

lvgl_tft/sharp_mip.cpp

@@ -0,0 +1,110 @@
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "driver/gpio.h"
+
+#include "sharp_mip.h" 
+#include <Adafruit_SharpMem.h>
+
+/** test Display dimensions
+ * Do not forget to set: menuconfig -> Components -> LVGL configuration
+ * Max. Horizontal resolution 400 -> WIDTH of your LCD
+ * Max. Vertical resolution   240 -> HEIGHT
+ */
+
+/*
+ * Return the draw_buf byte index corresponding to the pixel
+ * relatives coordinates (x, y) in the area.
+ * The area is rounded to a whole screen line.
+ */
+#define BUFIDX(x, y)  (((x) >> 3) + ((y) * (2 + (LV_HOR_RES_MAX >> 3))) + 2)
+
+// SHARP LCD Class
+// PCB Pins for LCD SPI
+#define SHARP_SCK  6
+#define SHARP_MOSI 0
+#define SHARP_SS   7
+
+// External COM Inversion Signal
+#define LCD_EXTMODE GPIO_NUM_3
+#define LCD_DISP    GPIO_NUM_2
+// Set the size of the display here, e.g. 128x128
+Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, LV_HOR_RES_MAX, LV_VER_RES_MAX);
+
+/*********************
+ *      DEFINES
+ *********************/
+#define TAG "SHARP"
+
+uint16_t flushcalls = 0;
+
+void delay(uint32_t period_ms) {
+    vTaskDelay(pdMS_TO_TICKS(period_ms));
+}
+
+/* Display initialization routine */
+void sharp_init(void)
+{
+    printf("SHAROP LCD init\n");
+    // Display pins config
+    gpio_set_direction(LCD_EXTMODE, GPIO_MODE_OUTPUT);
+    gpio_set_direction(LCD_DISP, GPIO_MODE_OUTPUT);// Display On(High)/Off(Low) 
+    gpio_set_level(LCD_DISP, 1);
+    gpio_set_level(LCD_EXTMODE, 1);
+    display.begin();
+}
+
+/**
+ * @brief rounds area before writing
+ * 
+ * @param disp_drv 
+ * @param area 
+ * @deprecated
+ */
+void sharp_mip_rounder(lv_disp_drv_t * disp_drv, lv_area_t * area) {
+  /* Round area to the whole LINE */
+    area->x1 = 0;
+    area->x2 = LV_HOR_RES_MAX - 1;
+}
+
+/* Required by LVGL */
+void sharp_flush(lv_disp_drv_t *drv, lv_area_t *area, lv_color_t *color_map)
+{
+    /* Round area to the whole LINE */
+    /* area->x1 = 0;
+    area->x2 = LV_HOR_RES_MAX - 1; */
+    //lv_refr_set_round_cb(sharp_mip_rounder); // NOT applicable to this version of LVGL
+    // FORCE Flushing Whole display (Really unnecesary, just a demo, since I don't know how to refresh an *LCD partial only*)
+
+    ++flushcalls;
+    // x2:%d  y2:%d 
+    printf("flush %d x1:%d y1:%d x2:%d y2:%d  w:%d h:%d\n",
+    flushcalls,area->x1,area->y1,area->x2,area->y2,lv_area_get_width(area),lv_area_get_height(area));
+
+    // FULL Refresh does not work nice unless you force it on newer versions of LVGL (see lv_refr_set_round_cb)
+    //display.refresh();
+    display.refreshLines(area->x1, area->x1, area->y1,area->y2);
+    /* IMPORTANT:
+     * Inform the graphics library that you are ready with the flushing */
+    lv_disp_flush_ready(drv);
+}
+
+/* Called for each pixel */
+void sharp_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf,
+    lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
+    lv_color_t color, lv_opa_t opa)
+{
+    // Test using RGB232: Otherwise you can directly use color.full if MONOCHROME
+    int16_t lcd_color = 1; // WHITE
+
+    // Color setting use: RGB232
+    // Only monochrome:   All what is not white, turn black
+    if (color.full<254) { 
+        lcd_color = 0;        
+    }
+    display.drawPixel((int16_t)x, (int16_t)y, lcd_color);
+
+    //If not drawing anything: Debug to see if this function is called:
+    //printf("set_px %d %d R:%d G:%d B:%d\n",(int16_t)x,(int16_t)y, color.ch.red, color.ch.green, color.ch.blue);
+    
+}

lvgl_tft/sharp_mip.h

@@ -0,0 +1,35 @@
+/**
+ * Display class for generic e-Paper driven by EPDiy class
+*/
+#pragma once
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+ #include "lvgl/lvgl.h"
+#endif
+#include "sdkconfig.h"
+
+/* Configure your display */
+void sharp_init(void);
+
+/* LVGL callbacks */
+void sharp_flush(lv_disp_drv_t *drv, lv_area_t *area, lv_color_t *color_map);
+
+/* Only for monochrome displays. But we use epdiy_set_px also for epapers */
+//void epdiy_rounder(lv_disp_drv_t *disp_drv, lv_area_t *area);
+void sharp_set_px_cb(lv_disp_drv_t *disp_drv, uint8_t *buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y, lv_color_t color, lv_opa_t opa);
+
+void sharp_rounder(lv_disp_drv_t * disp_drv, lv_area_t * area);
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+

lvgl_tft/ssd1306.c

@@ -13,9 +13,10 @@
 /*********************
  *      INCLUDES
  *********************/
+#include "driver/i2c.h"
 #include "assert.h"
 
-#include "lvgl_i2c/i2c_manager.h"
+#include "lvgl_i2c_conf.h"
 
 #include "ssd1306.h"
 
@@ -24,7 +25,6 @@
  *********************/
 #define TAG "SSD1306"
 
-#define OLED_I2C_PORT                       (CONFIG_LV_I2C_DISPLAY_PORT)
 // SLA (0x3C) + WRITE_MODE (0x00) =  0x78 (0b01111000)
 #define OLED_I2C_ADDRESS                    0x3C
 #define OLED_WIDTH                          128
@@ -70,6 +70,8 @@
 // Charge Pump (pg.62)
 #define OLED_CMD_SET_CHARGE_PUMP            0x8D    // follow with 0x14
 
+#define OLED_IIC_FREQ_HZ                    400000  // I2C colock frequency
+
 /**********************
  *      TYPEDEFS
  **********************/
@@ -99,10 +101,10 @@ void ssd1306_init(void)
     uint8_t orientation_1 = 0;
     uint8_t orientation_2 = 0;
 
-#if defined (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE)
+#if defined (CONFIG_DISPLAY_ORIENTATION_LANDSCAPE)
     orientation_1 = OLED_CMD_SET_SEGMENT_REMAP;
     orientation_2 = OLED_CMD_SET_COM_SCAN_MODE_REMAP;
-#elif defined (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
+#elif defined (CONFIG_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
     orientation_1 = 0xA0;
     orientation_2 = OLED_CMD_SET_COM_SCAN_MODE_NORMAL;
 #else
@@ -211,15 +213,44 @@ void ssd1306_sleep_out(void)
 static uint8_t send_data(lv_disp_drv_t *disp_drv, void *bytes, size_t bytes_len)
 {
     (void) disp_drv;
+    esp_err_t err;
 
     uint8_t *data = (uint8_t *) bytes;
 
-    return lvgl_i2c_write(OLED_I2C_PORT, OLED_I2C_ADDRESS, data[0], data + 1, bytes_len - 1 );
+    i2c_cmd_handle_t cmd = i2c_cmd_link_create();
+
+    i2c_master_start(cmd);
+    i2c_master_write_byte(cmd, (OLED_I2C_ADDRESS << 1) | I2C_MASTER_WRITE, true);
+
+    for (size_t idx = 0; idx < bytes_len; idx++) {
+        i2c_master_write_byte(cmd, data[idx], true);
+    }
+
+    i2c_master_stop(cmd);
+
+    /* Send queued commands */
+    err = i2c_master_cmd_begin(DISP_I2C_PORT, cmd, 10 / portTICK_PERIOD_MS);
+    i2c_cmd_link_delete(cmd);
+
+    return ESP_OK == err ? 0 : 1;
 }
 
 static uint8_t send_pixels(lv_disp_drv_t *disp_drv, void *color_buffer, size_t buffer_len)
 {
     (void) disp_drv;
+    esp_err_t err;
 
-    return lvgl_i2c_write(OLED_I2C_PORT, OLED_I2C_ADDRESS, OLED_CONTROL_BYTE_DATA_STREAM, color_buffer, buffer_len);
+    i2c_cmd_handle_t cmd = i2c_cmd_link_create();
+    i2c_master_start(cmd);
+    i2c_master_write_byte(cmd, (OLED_I2C_ADDRESS << 1) | I2C_MASTER_WRITE, true);
+
+    i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_DATA_STREAM, true);
+    i2c_master_write(cmd, (uint8_t *) color_buffer, buffer_len, true);
+    i2c_master_stop(cmd);
+
+    /* Send queued commands */
+    err = i2c_master_cmd_begin(DISP_I2C_PORT, cmd, 10 / portTICK_PERIOD_MS);
+    i2c_cmd_link_delete(cmd);
+
+    return ESP_OK == err ? 0 : 1;
 }

lvgl_tft/ssd1306.h

@@ -25,6 +25,8 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
+#define SSD1306_SDA     CONFIG_LV_DISP_PIN_SDA
+#define SSD1306_SCL     CONFIG_LV_DISP_PIN_SCL
 #define SSD1306_DISPLAY_ORIENTATION     TFT_ORIENTATION_LANDSCAPE
 
 /**********************

lvgl_tft/st7735s.c

@@ -8,15 +8,12 @@
  *********************/
 #include "st7735s.h"
 #include "disp_spi.h"
+#include "driver/i2c.h"
 #include "driver/gpio.h"
 #include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
-#ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
-    #include "lvgl_i2c/i2c_manager.h"
-#endif
-
 /*********************
  *      DEFINES
  *********************/
@@ -41,6 +38,7 @@ static void st7735s_send_cmd(uint8_t cmd);
 static void st7735s_send_data(void * data, uint16_t length);
 static void st7735s_send_color(void * data, uint16_t length);
 static void st7735s_set_orientation(uint8_t orientation);
+static void i2c_master_init();
 static void axp192_write_byte(uint8_t addr, uint8_t data);
 static void axp192_init();
 static void axp192_sleep_in();
@@ -62,6 +60,7 @@ uint8_t st7735s_portrait_mode = 0;
 void st7735s_init(void)
 {
 #ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
+    i2c_master_init();
     axp192_init();
 #endif
 
@@ -100,8 +99,6 @@ void st7735s_init(void)
 	//Initialize non-SPI GPIOs
         gpio_pad_select_gpio(ST7735S_DC);
 	gpio_set_direction(ST7735S_DC, GPIO_MODE_OUTPUT);
-
-#if ST7735S_USE_RST
         gpio_pad_select_gpio(ST7735S_RST);
 	gpio_set_direction(ST7735S_RST, GPIO_MODE_OUTPUT);
 
@@ -110,7 +107,6 @@ void st7735s_init(void)
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(ST7735S_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "ST7735S initialization.");
 
@@ -164,16 +160,12 @@ void st7735s_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
 void st7735s_sleep_in()
 {
 	st7735s_send_cmd(0x10);
-    #ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
+	axp192_sleep_in();
-    	axp192_sleep_in();
-    #endif
 }
 
 void st7735s_sleep_out()
 {
-    #ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
+	axp192_sleep_out();
-    	axp192_sleep_out();
-    #endif
 	st7735s_send_cmd(0x11);
 }
 
@@ -223,35 +215,55 @@ static void st7735s_set_orientation(uint8_t orientation)
     st7735s_send_data((void *) &data[orientation], 1);
 }
 
-#ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
+static void i2c_master_init()
+{
+	i2c_config_t i2c_config = {
+		.mode               = I2C_MODE_MASTER,
+		.sda_io_num         = AXP192_SDA,
+		.scl_io_num         = AXP192_SCL,
+		.sda_pullup_en      = GPIO_PULLUP_ENABLE,
+		.scl_pullup_en      = GPIO_PULLUP_ENABLE,
+		.master.clk_speed   = 400000
+	};
+	i2c_param_config(I2C_NUM_0, &i2c_config);
+	i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0);
+}
 
-    static void axp192_write_byte(uint8_t addr, uint8_t data)
+static void axp192_write_byte(uint8_t addr, uint8_t data)
-    {
+{
-        err = lvgl_i2c_write(CONFIG_LV_I2C_DISPLAY_PORT, AXP192_I2C_ADDRESS, addr, &data, 1);
+	esp_err_t ret;
-        if (ret != ESP_OK) {
+	i2c_cmd_handle_t cmd = i2c_cmd_link_create();
-            ESP_LOGE(TAG, "AXP192 send failed. code: 0x%.2X", ret);
-        }
-    }
 
-    static void axp192_init()
+	i2c_master_start(cmd);
-    {
+	i2c_master_write_byte(cmd, (AXP192_I2C_ADDRESS << 1) | I2C_MASTER_WRITE, true);
-        // information on how to init and use AXP192 ifor M5StickC taken from
+	i2c_master_write_byte(cmd, addr, true);
-        // 	https://forum.m5stack.com/topic/1025/m5stickc-turn-off-screen-completely
+	i2c_master_write_byte(cmd, data, true);
+	i2c_master_stop(cmd);
 
-        axp192_write_byte(0x10, 0xFF);			// OLED_VPP Enable
+	ret = i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
-        axp192_write_byte(0x28, 0xCC);			// Enable LDO2&LDO3, LED&TFT 3.0V
+	if (ret != ESP_OK) {
-        axp192_sleep_out();
+		ESP_LOGE(TAG, "AXP192 send failed. code: 0x%.2X", ret);
-        ESP_LOGI(TAG, "AXP192 initialized, power enabled for LDO2 and LDO3");
+	}
-    }
+	i2c_cmd_link_delete(cmd);
+}
 
-    static void axp192_sleep_in()
+static void axp192_init()
-    {
+{
-        axp192_write_byte(0x12, 0x4b);
+	// information on how to init and use AXP192 ifor M5StickC taken from
-    }
+	// 	https://forum.m5stack.com/topic/1025/m5stickc-turn-off-screen-completely
 
-    static void axp192_sleep_out()
+	axp192_write_byte(0x10, 0xFF);			// OLED_VPP Enable
-    {
+	axp192_write_byte(0x28, 0xCC);			// Enable LDO2&LDO3, LED&TFT 3.0V
-        axp192_write_byte(0x12, 0x4d);
+	axp192_sleep_out();
-    }
+	ESP_LOGI(TAG, "AXP192 initialized, power enabled for LDO2 and LDO3");
+}
 
-#endif
+static void axp192_sleep_in()
+{
+	axp192_write_byte(0x12, 0x4b);
+}
+
+static void axp192_sleep_out()
+{
+	axp192_write_byte(0x12, 0x4d);
+}

lvgl_tft/st7735s.h

@@ -25,9 +25,11 @@ extern "C" {
  *********************/
 #define DISP_BUF_SIZE (LV_HOR_RES_MAX * 40)
 
-#define ST7735S_DC       CONFIG_LV_DISP_PIN_DC
+#define ST7735S_DC   CONFIG_LV_DISP_PIN_DC
-#define ST7735S_RST      CONFIG_LV_DISP_PIN_RST
+#define ST7735S_RST  CONFIG_LV_DISP_PIN_RST
-#define ST7735S_USE_RST  CONFIG_LV_DISP_USE_RST
+
+#define AXP192_SDA   CONFIG_LV_AXP192_PIN_SDA
+#define AXP192_SCL   CONFIG_LV_AXP192_PIN_SCL
 
 #define ST7735S_INVERT_COLORS CONFIG_LV_INVERT_COLORS
 
@@ -131,6 +133,7 @@ extern "C" {
 
 void st7735s_init(void);
 void st7735s_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void st7735s_enable_backlight(bool backlight);
 void st7735s_sleep_in(void);
 void st7735s_sleep_out(void);
 

lvgl_tft/st7789.c

@@ -35,7 +35,9 @@ typedef struct {
  **********************/
 static void st7789_set_orientation(uint8_t orientation);
 
-static void st7789_send_color(void *data, size_t length);
+static void st7789_send_cmd(uint8_t cmd);
+static void st7789_send_data(void *data, uint16_t length);
+static void st7789_send_color(void *data, uint16_t length);
 
 /**********************
  *  STATIC VARIABLES
@@ -89,13 +91,18 @@ void st7789_init(void)
     gpio_pad_select_gpio(ST7789_DC);
     gpio_set_direction(ST7789_DC, GPIO_MODE_OUTPUT);
 
-#if !defined(ST7789_SOFT_RST)
+#if !defined(CONFIG_LV_DISP_ST7789_SOFT_RESET)
     gpio_pad_select_gpio(ST7789_RST);
     gpio_set_direction(ST7789_RST, GPIO_MODE_OUTPUT);
 #endif
 
+#if ST7789_ENABLE_BACKLIGHT_CONTROL
+    gpio_pad_select_gpio(ST7789_BCKL);
+    gpio_set_direction(ST7789_BCKL, GPIO_MODE_OUTPUT);
+#endif
+
     //Reset the display
-#if !defined(ST7789_SOFT_RST)
+#if !defined(CONFIG_LV_DISP_ST7789_SOFT_RESET)
     gpio_set_level(ST7789_RST, 0);
     vTaskDelay(100 / portTICK_RATE_MS);
     gpio_set_level(ST7789_RST, 1);
@@ -117,12 +124,30 @@ void st7789_init(void)
         cmd++;
     }
 
+    st7789_enable_backlight(true);
+
     st7789_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 }
 
-/* The ST7789 display controller can drive up to 320*240 displays, when using a 240*240 or 240*135
+void st7789_enable_backlight(bool backlight)
- * displays there's a gap of 80px or 40/52/53px respectively. 52px or 53x offset depends on display orientation.
+{
- * We need to edit the coordinates to take into account those gaps, this is not necessary in all orientations. */
+#if ST7789_ENABLE_BACKLIGHT_CONTROL
+    printf("%s backlight.\n", backlight ? "Enabling" : "Disabling");
+    uint32_t tmp = 0;
+
+#if (ST7789_BCKL_ACTIVE_LVL==1)
+    tmp = backlight ? 1 : 0;
+#else
+    tmp = backlight ? 0 : 1;
+#endif
+
+    gpio_set_level(ST7789_BCKL, tmp);
+#endif
+}
+
+/* The ST7789 display controller can drive 320*240 displays, when using a 240*240
+ * display there's a gap of 80px, we need to edit the coordinates to take into
+ * account that gap, this is not necessary in all orientations. */
 void st7789_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
 {
     uint8_t data[4] = {0};
@@ -139,29 +164,13 @@ void st7789_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
     offsety2 += CONFIG_LV_TFT_DISPLAY_Y_OFFSET;
 
 #elif (LV_HOR_RES_MAX == 240) && (LV_VER_RES_MAX == 240)
-    #if (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
+#if (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
-        offsetx1 += 80;
+    offsetx1 += 80;
-        offsetx2 += 80;
+    offsetx2 += 80;
-    #elif (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
+#elif (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
-        offsety1 += 80;
+    offsety1 += 80;
-        offsety2 += 80;
+    offsety2 += 80;
-    #endif
+#endif
-#elif (LV_HOR_RES_MAX == 240) && (LV_VER_RES_MAX == 135)
-    #if (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT) || \
-        (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED)
-        offsetx1 += 40;
-        offsetx2 += 40;
-        offsety1 += 53;
-        offsety2 += 53;
-    #endif
-#elif (LV_HOR_RES_MAX == 135) && (LV_VER_RES_MAX == 240)
-    #if (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE) || \
-        (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
-        offsetx1 += 52;
-        offsetx2 += 52;
-        offsety1 += 40;
-        offsety2 += 40;
-    #endif
 #endif
 
     /*Column addresses*/
@@ -183,7 +192,7 @@ void st7789_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
     /*Memory write*/
     st7789_send_cmd(ST7789_RAMWR);
 
-    size_t size = (size_t)lv_area_get_width(area) * (size_t)lv_area_get_height(area);
+    uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
 
     st7789_send_color((void*)color_map, size * 2);
 
@@ -192,21 +201,21 @@ void st7789_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
 /**********************
  *   STATIC FUNCTIONS
  **********************/
-void st7789_send_cmd(uint8_t cmd)
+static void st7789_send_cmd(uint8_t cmd)
 {
     disp_wait_for_pending_transactions();
     gpio_set_level(ST7789_DC, 0);
     disp_spi_send_data(&cmd, 1);
 }
 
-void st7789_send_data(void * data, uint16_t length)
+static void st7789_send_data(void * data, uint16_t length)
 {
     disp_wait_for_pending_transactions();
     gpio_set_level(ST7789_DC, 1);
     disp_spi_send_data(data, length);
 }
 
-static void st7789_send_color(void * data, size_t length)
+static void st7789_send_color(void * data, uint16_t length)
 {
     disp_wait_for_pending_transactions();
     gpio_set_level(ST7789_DC, 1);

lvgl_tft/st7789.h

@@ -23,17 +23,17 @@ extern "C"
 
 #define ST7789_DC       CONFIG_LV_DISP_PIN_DC
 #define ST7789_RST      CONFIG_LV_DISP_PIN_RST
+#define ST7789_BCKL     CONFIG_LV_DISP_PIN_BCKL
 
-#if CONFIG_LV_DISP_USE_RST
+#define ST7789_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
-  #if CONFIG_LV_DISP_ST7789_SOFT_RESET
-    #define ST7789_SOFT_RST
-  #endif
-#else
-  #define ST7789_SOFT_RST
-#endif
-
 #define ST7789_INVERT_COLORS            CONFIG_LV_INVERT_COLORS
 
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+  #define ST7789_BCKL_ACTIVE_LVL 1
+#else
+  #define ST7789_BCKL_ACTIVE_LVL 0
+#endif
+
 /* ST7789 commands */
 #define ST7789_NOP      0x00
 #define ST7789_SWRESET  0x01
@@ -112,9 +112,7 @@ extern "C"
 
 void st7789_init(void);
 void st7789_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map);
-
+void st7789_enable_backlight(bool backlight);
-void st7789_send_cmd(uint8_t cmd);
-void st7789_send_data(void *data, uint16_t length);
 
 #ifdef __cplusplus
 } /* extern "C" */

lvgl_tft/st7796s.c

@@ -81,20 +81,31 @@ void st7796s_init(void)
 		{0, {0}, 0xff},
 	};
 
+#if ST7796S_BCKL == 15
+	gpio_config_t io_conf;
+	io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+	io_conf.mode = GPIO_MODE_OUTPUT;
+	io_conf.pin_bit_mask = GPIO_SEL_15;
+	io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+	io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+	gpio_config(&io_conf);
+#endif
+
 	//Initialize non-SPI GPIOs
 	gpio_pad_select_gpio(ST7796S_DC);
 	gpio_set_direction(ST7796S_DC, GPIO_MODE_OUTPUT);
-
-#if ST7796S_USE_RST
 	gpio_pad_select_gpio(ST7796S_RST);
 	gpio_set_direction(ST7796S_RST, GPIO_MODE_OUTPUT);
 
+#if ST7796S_ENABLE_BACKLIGHT_CONTROL
+	gpio_pad_select_gpio(ST7796S_BCKL);
+	gpio_set_direction(ST7796S_BCKL, GPIO_MODE_OUTPUT);
+#endif
 	//Reset the display
 	gpio_set_level(ST7796S_RST, 0);
 	vTaskDelay(100 / portTICK_RATE_MS);
 	gpio_set_level(ST7796S_RST, 1);
 	vTaskDelay(100 / portTICK_RATE_MS);
-#endif
 
 	ESP_LOGI(TAG, "Initialization.");
 
@@ -111,6 +122,8 @@ void st7796s_init(void)
 		cmd++;
 	}
 
+	st7796s_enable_backlight(true);
+
 	st7796s_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 
 #if ST7796S_INVERT_COLORS == 1
@@ -148,6 +161,22 @@ void st7796s_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_
 	st7796s_send_color((void *)color_map, size * 2);
 }
 
+void st7796s_enable_backlight(bool backlight)
+{
+#if ST7796S_ENABLE_BACKLIGHT_CONTROL
+	ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
+	uint32_t tmp = 0;
+
+#if (ST7796S_BCKL_ACTIVE_LVL == 1)
+	tmp = backlight ? 1 : 0;
+#else
+	tmp = backlight ? 0 : 1;
+#endif
+
+	gpio_set_level(ST7796S_BCKL, tmp);
+#endif
+}
+
 void st7796s_sleep_in()
 {
 	uint8_t data[] = {0x08};

lvgl_tft/st7796s.h

@@ -26,12 +26,19 @@ extern "C"
 /*********************
  *      DEFINES
  *********************/
-#define ST7796S_DC                  CONFIG_LV_DISP_PIN_DC
+#define ST7796S_DC CONFIG_LV_DISP_PIN_DC
-#define ST7796S_RST                 CONFIG_LV_DISP_PIN_RST
+#define ST7796S_RST CONFIG_LV_DISP_PIN_RST
-#define ST7796S_USE_RST             CONFIG_LV_DISP_USE_RST
+#define ST7796S_BCKL CONFIG_LV_DISP_PIN_BCKL
-#define ST7796S_INVERT_COLORS       CONFIG_LV_INVERT_COLORS
+
+#define ST7796S_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
+#define ST7796S_INVERT_COLORS CONFIG_LV_INVERT_COLORS
 #define ST7796S_DISPLAY_ORIENTATION CONFIG_LV_DISPLAY_ORIENTATION
 
+#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
+#define ST7796S_BCKL_ACTIVE_LVL 1
+#else
+#define ST7796S_BCKL_ACTIVE_LVL 0
+#endif
 
 /*******************
  * ST7796S REGS
@@ -111,6 +118,7 @@ extern "C"
 
   void st7796s_init(void);
   void st7796s_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map);
+  void st7796s_enable_backlight(bool backlight);
 
   /**********************
  *      MACROS

lvgl_touch/Kconfig

@@ -1,29 +1,28 @@
 menu "LVGL Touch controller"
 
     config LV_TOUCH_CONTROLLER
-        int
+	int
-        default 0 if LV_TOUCH_CONTROLLER_NONE
+	default 0 if LV_TOUCH_CONTROLLER_NONE
-        default 1 if LV_TOUCH_CONTROLLER_XPT2046
+	default 1 if LV_TOUCH_CONTROLLER_XPT2046
-        default 2 if LV_TOUCH_CONTROLLER_FT6X06
+	default 2 if LV_TOUCH_CONTROLLER_FT6X06
-        default 3 if LV_TOUCH_CONTROLLER_STMPE610
+	default 3 if LV_TOUCH_CONTROLLER_STMPE610
         default 4 if LV_TOUCH_CONTROLLER_ADCRAW
         default 5 if LV_TOUCH_CONTROLLER_FT81X
         default 6 if LV_TOUCH_CONTROLLER_RA8875
-        default 7 if LV_TOUCH_CONTROLLER_GT911
+        default 7 if LV_TOUCH_CONTROLLER_L58
-        default 8 if LV_TOUCH_CONTROLLER_L58
     choice
-        prompt "Select a touch panel controller model."
+	prompt "Select a touch panel controller model."
-        default LV_TOUCH_CONTROLLER_NONE
+	default LV_TOUCH_CONTROLLER_NONE
-        help
+	help
-            Select the controller for your touch panel.
+	    Select the controller for your touch panel.
 
-        config LV_TOUCH_CONTROLLER_NONE
+	config LV_TOUCH_CONTROLLER_NONE
-            bool "None"
+	    bool "None"
-        config LV_TOUCH_CONTROLLER_XPT2046
+	config LV_TOUCH_CONTROLLER_XPT2046
             select LV_TOUCH_DRIVER_PROTOCOL_SPI
             bool "XPT2046"
-        config LV_TOUCH_CONTROLLER_FT6X06
+	config LV_TOUCH_CONTROLLER_FT6X06
-            select LV_I2C_TOUCH
+            select LV_TOUCH_DRIVER_PROTOCOL_I2C
             bool "FT6X06"
     
 	config LV_TOUCH_CONTROLLER_L58
@@ -43,9 +42,6 @@ menu "LVGL Touch controller"
         config LV_TOUCH_CONTROLLER_RA8875
             select LV_TOUCH_DRIVER_DISPLAY
             bool "RA8875"
-        config LV_TOUCH_CONTROLLER_GT911
-            select LV_I2C_TOUCH
-            bool "GT911"
     endchoice
     
     config LV_TOUCH_DRIVER_PROTOCOL_SPI
@@ -53,7 +49,7 @@ menu "LVGL Touch controller"
         help
             Touch controller protocol SPI
 
-    config LV_I2C_TOUCH
+    config LV_TOUCH_DRIVER_PROTOCOL_I2C
         bool
         help
             Touch controller protocol I2C
@@ -67,20 +63,37 @@ menu "LVGL Touch controller"
         bool
         help
             Touch controller uses same interface/device as display
-            (Note: Display must be initialized before touch)
+	    (Note: Display must be initialized before touch)
+    
+    choice
+        prompt "Touch I2C port"
+        depends on LV_TOUCH_DRIVER_PROTOCOL_I2C
+        
+        default LV_TOUCH_I2C_PORT_0
+        help
+            Select the I2C port used by the touch controller.
+
+        config LV_TOUCH_I2C_PORT_0
+            bool "I2C PORT 0"
+        config LV_TOUCH_I2C_PORT_1
+            bool "I2C PORT 1"
+    endchoice
     
     choice
         prompt "Touch Controller SPI Bus."
         depends on LV_TOUCH_DRIVER_PROTOCOL_SPI
         
-        default LV_TOUCH_CONTROLLER_SPI2_HOST
+        default LV_TOUCH_CONTROLLER_SPI_VSPI if !IDF_TARGET_ESP32S2
+        default LV_TOUCH_CONTROLLER_SPI_FSPI if IDF_TARGET_ESP32S2
         help
-            Select the SPI Bus the touch controller is attached to.
+            Select the SPI Bus the TFT Display is attached to.
     
-        config LV_TOUCH_CONTROLLER_SPI2_HOST
+        config LV_TOUCH_CONTROLLER_SPI_HSPI
-            bool "SPI2_HOST"
+            bool "HSPI"
-        config LV_TOUCH_CONTROLLER_SPI3_HOST
+        config LV_TOUCH_CONTROLLER_SPI_VSPI
-            bool "SPI3_HOST"
+            bool "VSPI" if !IDF_TARGET_ESP32S2
+        config LV_TOUCH_CONTROLLER_SPI_FSPI
+            bool "FSPI" if IDF_TARGET_ESP32S2
         endchoice
     
     menu "Touchpanel (L58) Lilygo Pin Assignments"
@@ -120,6 +133,8 @@ menu "LVGL Touch controller"
         config LV_TOUCH_SPI_MISO
             int
             prompt "GPIO for MISO (Master In Slave Out)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
             
             default 35 if LV_PREDEFINED_PINS_38V1
             default 19
@@ -129,6 +144,8 @@ menu "LVGL Touch controller"
         config LV_TOUCH_SPI_MOSI
             int
             prompt "GPIO for MOSI (Master Out Slave In)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
 
             default 32 if LV_PREDEFINED_PINS_38V1
             default 23
@@ -137,6 +154,8 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_SPI_CLK
             int "GPIO for CLK (SCK / Serial Clock)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
             
             default 26 if LV_PREDEFINED_PINS_38V1
             default 18
@@ -145,6 +164,8 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_SPI_CS
             int "GPIO for CS (Slave Select)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
             
             default 33 if LV_PREDEFINED_PINS_38V1
             default 5
@@ -153,6 +174,8 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_PIN_IRQ
             int "GPIO for IRQ (Interrupt Request)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
 	    
             default 27 if LV_PREDEFINED_PINS_38V4
             default 25
@@ -187,10 +210,10 @@ menu "LVGL Touch controller"
             default 4095 if LV_PREDEFINED_PINS_38V4
             default 1900
         
-        config LV_TOUCH_XY_SWAP
+		config LV_TOUCH_XY_SWAP
-            bool
+        	bool
-            prompt "Swap XY."
+        	prompt "Swap XY."
-            default y
+        	default y
 
         config LV_TOUCH_INVERT_X
             bool
@@ -217,13 +240,36 @@ menu "LVGL Touch controller"
         endchoice
     endmenu
 
+    menu "Touchpanel (FT6X06) Pin Assignments"
+        depends on LV_TOUCH_CONTROLLER_FT6X06
+
+        config LV_TOUCH_I2C_SDA
+            int
+            prompt "GPIO for SDA (I2C)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+
+            default 21
+            help
+            Configure the I2C touchpanel SDA pin here.
+
+        config LV_TOUCH_I2C_SCL
+            int "GPIO for clock signal SCL (I2C)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+            
+            default 22
+            help
+            Configure the I2C touchpanel SCL pin here.
+    endmenu
+    
     menu "Touchpanel Configuration (FT6X06)"
         depends on LV_TOUCH_CONTROLLER_FT6X06
 
-        config LV_FT6X36_SWAPXY
+	config LV_FT6X36_SWAPXY
-            bool
+	    bool
-            prompt "Swap X with Y coordinate."
+	    prompt "Swap X with Y coordinate."
-            default n
+	    default y
 
         config LV_FT6X36_INVERT_X
             bool
@@ -233,14 +279,7 @@ menu "LVGL Touch controller"
         config LV_FT6X36_INVERT_Y
             bool
             prompt "Invert Y coordinate value."
-            default n
+            default y
-
-        config LV_FT6X36_COORDINATES_QUEUE
-            bool
-            prompt "Send coordinates to FreeRTOS queue."
-            default n
-            help
-            Receive from the FreeRTOS queue using the handle 'ft6x36_touch_queue_handle'.
 
     endmenu
     
@@ -250,6 +289,8 @@ menu "LVGL Touch controller"
         config LV_TOUCH_SPI_MISO
             int
             prompt "GPIO for MISO (Master In Slave Out)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
             
             default 35 if LV_PREDEFINED_PINS_38V1
             default 19 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
@@ -259,9 +300,10 @@ menu "LVGL Touch controller"
             Configure the touchpanel MISO pin here.
 
         config LV_TOUCH_SPI_MOSI
-            # TODO Fix default for ESP32C3
             int
             prompt "GPIO for MOSI (Master Out Slave In)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
 
             default 32 if LV_PREDEFINED_PINS_38V1
             default 18 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
@@ -272,6 +314,8 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_SPI_CLK
             int "GPIO for CLK (SCK / Serial Clock)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
 
             default 26 if LV_PREDEFINED_PINS_38V1
             default 5 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
@@ -281,6 +325,9 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_SPI_CS
             int "GPIO for CS (Slave Select)"
+            range 0 39 if IDF_TARGET_ESP32
+            range 0 43 if IDF_TARGET_ESP32S2
+            
             default 33 if LV_PREDEFINED_PINS_38V1
             default 32 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
             default 5
@@ -312,9 +359,9 @@ menu "LVGL Touch controller"
             default 3800
         
         config LV_TOUCH_XY_SWAP
-            bool
+        	bool
-            prompt "Swap XY."
+        	prompt "Swap XY."
-            default n
+        	default n
 
         config LV_TOUCH_INVERT_X
             bool
@@ -413,25 +460,25 @@ menu "LVGL Touch controller"
         config LV_TOUCH_X_MIN
             int
             prompt "Minimum X coordinate ADC value"
-            range 0 1023
+	    range 0 1023
             default 0
 
         config LV_TOUCH_Y_MIN
             int
             prompt "Minimum Y coordinate ADC value"
-            range 0 1023
+	    range 0 1023
             default 0
 
         config LV_TOUCH_X_MAX
             int
             prompt "Maximum X coordinate ADC value"
-            range 0 1023
+	    range 0 1023
             default 1023
 
         config LV_TOUCH_Y_MAX
             int
             prompt "Maximum Y coordinate ADC value"
-            range 0 1023
+	    range 0 1023
             default 1023
 
         config LV_TOUCH_XY_SWAP
@@ -452,13 +499,13 @@ menu "LVGL Touch controller"
         config LV_TOUCH_RA8875_SAMPLE_TIME
             int
             prompt "TP Sample Time Adjusting"
-            range 0 7
+	    range 0 7
             default 0
 
         config LV_TOUCH_RA8875_ADC_CLOCK
             int
             prompt "ADC Clock Setting"
-            range 0 7
+	    range 0 7
             default 0
 
         config LV_TOUCH_RA8875_WAKEUP_ENABLE
@@ -478,57 +525,4 @@ menu "LVGL Touch controller"
 
     endmenu
 
-    menu "Touchpanel Configuration (GT911)"
-        depends on LV_TOUCH_CONTROLLER_GT911
-
-    config LV_GT911_SWAPXY
-        bool
-        prompt "Swap X with Y coordinate."
-        default y
-
-        config LV_GT911_INVERT_X
-            bool
-            prompt "Invert X coordinate value."
-            default n
-
-        config LV_GT911_INVERT_Y
-            bool
-            prompt "Invert Y coordinate value."
-            default y
-
-    endmenu
-
-    choice
-        prompt "Select an I2C port for the touch panel"
-        default LV_I2C_TOUCH_PORT_0
-        depends on LV_I2C_TOUCH
-
-        config LV_I2C_TOUCH_PORT_0
-            bool
-            prompt "I2C port 0"
-            help
-                I2C is shared peripheral managed by I2C Manager. In order to configure I2C Manager (pinout, etc.) see menu
-                Component config->I2C Port Settings.
-
-        config LV_I2C_TOUCH_PORT_1
-            bool
-            prompt "I2C port 1"
-            help
-                I2C is shared peripheral managed by I2C Manager. In order to configure I2C Manager (pinout, etc.) see menu
-                Component config->I2C Port Settings.
-
-    endchoice
-
-    config LV_I2C
-        bool
-        default y if LV_I2C_TOUCH
-
-    config LV_I2C_TOUCH_PORT
-        int
-        default 1 if LV_I2C_TOUCH_PORT_1
-        default 0
-
 endmenu
-
-
-

lvgl_touch/ft6x36.c

@@ -19,27 +19,37 @@
 */
 
 #include <esp_log.h>
+#include <driver/i2c.h>
 #ifdef LV_LVGL_H_INCLUDE_SIMPLE
 #include <lvgl.h>
 #else
 #include <lvgl/lvgl.h>
 #endif
 #include "ft6x36.h"
-#include "lvgl_i2c/i2c_manager.h"
+#include "tp_i2c.h"
+#include "../lvgl_i2c_conf.h"
 
 #define TAG "FT6X36"
-#define FT6X36_TOUCH_QUEUE_ELEMENTS 1
 
 
-static ft6x36_status_t ft6x36_status;
+ft6x36_status_t ft6x36_status;
-static uint8_t current_dev_addr;       // set during init
+uint8_t current_dev_addr;       // set during init
-static ft6x36_touch_t touch_inputs = { -1, -1, LV_INDEV_STATE_REL };    // -1 coordinates to designate it was never touched
-#if CONFIG_LV_FT6X36_COORDINATES_QUEUE
-QueueHandle_t ft6x36_touch_queue_handle;
-#endif
 
-static esp_err_t ft6x06_i2c_read8(uint8_t slave_addr, uint8_t register_addr, uint8_t *data_buf) {
+esp_err_t ft6x06_i2c_read8(uint8_t slave_addr, uint8_t register_addr, uint8_t *data_buf) {
-    return lvgl_i2c_read(CONFIG_LV_I2C_TOUCH_PORT, slave_addr, register_addr, data_buf, 1);
+    i2c_cmd_handle_t i2c_cmd = i2c_cmd_link_create();
+
+    i2c_master_start(i2c_cmd);
+    i2c_master_write_byte(i2c_cmd, (slave_addr << 1) | I2C_MASTER_WRITE, true);
+    i2c_master_write_byte(i2c_cmd, register_addr, I2C_MASTER_ACK);
+
+    i2c_master_start(i2c_cmd);
+    i2c_master_write_byte(i2c_cmd, (slave_addr << 1) | I2C_MASTER_READ, true);
+
+    i2c_master_read_byte(i2c_cmd, data_buf, I2C_MASTER_NACK);
+    i2c_master_stop(i2c_cmd);
+    esp_err_t ret = i2c_master_cmd_begin(TOUCH_I2C_PORT, i2c_cmd, 1000 / portTICK_RATE_MS);
+    i2c_cmd_link_delete(i2c_cmd);
+    return ret;
 }
 
 /**
@@ -65,38 +75,42 @@ uint8_t ft6x36_get_gesture_id() {
   * @retval None
   */
 void ft6x06_init(uint16_t dev_addr) {
+    if (!ft6x36_status.inited) {
 
-    ft6x36_status.inited = true;
+/* I2C master is initialized before calling this function */
-    current_dev_addr = dev_addr;
+#if 0
-    uint8_t data_buf;
+        esp_err_t code = i2c_master_init();
-    esp_err_t ret;
+#else
-    ESP_LOGI(TAG, "Found touch panel controller");
+        esp_err_t code = ESP_OK;
-    if ((ret = ft6x06_i2c_read8(dev_addr, FT6X36_PANEL_ID_REG, &data_buf) != ESP_OK))
-        ESP_LOGE(TAG, "Error reading from device: %s",
-                 esp_err_to_name(ret));    // Only show error the first time
-    ESP_LOGI(TAG, "\tDevice ID: 0x%02x", data_buf);
-
-    ft6x06_i2c_read8(dev_addr, FT6X36_CHIPSELECT_REG, &data_buf);
-    ESP_LOGI(TAG, "\tChip ID: 0x%02x", data_buf);
-
-    ft6x06_i2c_read8(dev_addr, FT6X36_DEV_MODE_REG, &data_buf);
-    ESP_LOGI(TAG, "\tDevice mode: 0x%02x", data_buf);
-
-    ft6x06_i2c_read8(dev_addr, FT6X36_FIRMWARE_ID_REG, &data_buf);
-    ESP_LOGI(TAG, "\tFirmware ID: 0x%02x", data_buf);
-
-    ft6x06_i2c_read8(dev_addr, FT6X36_RELEASECODE_REG, &data_buf);
-    ESP_LOGI(TAG, "\tRelease code: 0x%02x", data_buf);
-    
-#if CONFIG_LV_FT6X36_COORDINATES_QUEUE
-    ft6x36_touch_queue_handle = xQueueCreate( FT6X36_TOUCH_QUEUE_ELEMENTS, sizeof( ft6x36_touch_t ) );
-    if( ft6x36_touch_queue_handle == NULL )
-    {
-        ESP_LOGE( TAG, "\tError creating touch input FreeRTOS queue" );
-        return;
-    }
-    xQueueSend( ft6x36_touch_queue_handle, &touch_inputs, 0 );
 #endif
+
+        if (code != ESP_OK) {
+            ft6x36_status.inited = false;
+            ESP_LOGE(TAG, "Error during I2C init %s", esp_err_to_name(code));
+        } else {
+            ft6x36_status.inited = true;
+            current_dev_addr = dev_addr;
+            uint8_t data_buf;
+            esp_err_t ret;
+            ESP_LOGI(TAG, "Found touch panel controller");
+            if ((ret = ft6x06_i2c_read8(dev_addr, FT6X36_PANEL_ID_REG, &data_buf) != ESP_OK))
+                ESP_LOGE(TAG, "Error reading from device: %s",
+                         esp_err_to_name(ret));    // Only show error the first time
+            ESP_LOGI(TAG, "\tDevice ID: 0x%02x", data_buf);
+
+            ft6x06_i2c_read8(dev_addr, FT6X36_CHIPSELECT_REG, &data_buf);
+            ESP_LOGI(TAG, "\tChip ID: 0x%02x", data_buf);
+
+            ft6x06_i2c_read8(dev_addr, FT6X36_DEV_MODE_REG, &data_buf);
+            ESP_LOGI(TAG, "\tDevice mode: 0x%02x", data_buf);
+
+            ft6x06_i2c_read8(dev_addr, FT6X36_FIRMWARE_ID_REG, &data_buf);
+            ESP_LOGI(TAG, "\tFirmware ID: 0x%02x", data_buf);
+
+            ft6x06_i2c_read8(dev_addr, FT6X36_RELEASECODE_REG, &data_buf);
+            ESP_LOGI(TAG, "\tRelease code: 0x%02x", data_buf);
+        }
+    }
 }
 
 /**
@@ -106,55 +120,84 @@ void ft6x06_init(uint16_t dev_addr) {
   * @retval Always false
   */
 bool ft6x36_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
-    if (!ft6x36_status.inited) {
+    uint8_t data_xy[4];        // 2 bytes X | 2 bytes Y
-        ESP_LOGE(TAG, "Init first!");
+    uint8_t touch_pnt_cnt;        // Number of detected touch points
-        return 0x00;
+    static int16_t last_x = 0;  // 12bit pixel value
-    }
+    static int16_t last_y = 0;  // 12bit pixel value
-    uint8_t data_buf[5];        // 1 byte status, 2 bytes X, 2 bytes Y
 
-    esp_err_t ret = lvgl_i2c_read(CONFIG_LV_I2C_TOUCH_PORT, current_dev_addr, FT6X36_TD_STAT_REG, &data_buf[0], 5);
+    ft6x06_i2c_read8(current_dev_addr, FT6X36_TD_STAT_REG, &touch_pnt_cnt);
-    if (ret != ESP_OK) {
+    if (touch_pnt_cnt != 1) {    // ignore no touch & multi touch
-        ESP_LOGE(TAG, "Error talking to touch IC: %s", esp_err_to_name(ret));
+        data->point.x = last_x;
-    }
+        data->point.y = last_y;
-    uint8_t touch_pnt_cnt = data_buf[0];  // Number of detected touch points
+        data->state = LV_INDEV_STATE_REL;
-
-    if (ret != ESP_OK || touch_pnt_cnt != 1) {    // ignore no touch & multi touch
-        if ( touch_inputs.current_state != LV_INDEV_STATE_REL)
-        {
-            touch_inputs.current_state = LV_INDEV_STATE_REL;
-#if CONFIG_LV_FT6X36_COORDINATES_QUEUE
-            xQueueOverwrite( ft6x36_touch_queue_handle, &touch_inputs );
-#endif
-        } 
-        data->point.x = touch_inputs.last_x;
-        data->point.y = touch_inputs.last_y;
-        data->state = touch_inputs.current_state;
         return false;
     }
 
-    touch_inputs.current_state = LV_INDEV_STATE_PR;
+    // Read X value
-    touch_inputs.last_x = ((data_buf[1] & FT6X36_MSB_MASK) << 8) | (data_buf[2] & FT6X36_LSB_MASK);
+    i2c_cmd_handle_t i2c_cmd = i2c_cmd_link_create();
-    touch_inputs.last_y = ((data_buf[3] & FT6X36_MSB_MASK) << 8) | (data_buf[4] & FT6X36_LSB_MASK);
+
+    i2c_master_start(i2c_cmd);
+    i2c_master_write_byte(i2c_cmd, (current_dev_addr << 1) | I2C_MASTER_WRITE, true);
+    i2c_master_write_byte(i2c_cmd, FT6X36_P1_XH_REG, I2C_MASTER_ACK);
+
+    i2c_master_start(i2c_cmd);
+    i2c_master_write_byte(i2c_cmd, (current_dev_addr << 1) | I2C_MASTER_READ, true);
+
+    i2c_master_read_byte(i2c_cmd, &data_xy[0], I2C_MASTER_ACK);     // reads FT6X36_P1_XH_REG
+    i2c_master_read_byte(i2c_cmd, &data_xy[1], I2C_MASTER_NACK);    // reads FT6X36_P1_XL_REG
+    i2c_master_stop(i2c_cmd);
+    esp_err_t ret = i2c_master_cmd_begin(TOUCH_I2C_PORT, i2c_cmd, 1000 / portTICK_RATE_MS);
+    i2c_cmd_link_delete(i2c_cmd);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "Error getting X coordinates: %s", esp_err_to_name(ret));
+        data->point.x = last_x;
+        data->point.y = last_y;
+        data->state = LV_INDEV_STATE_REL;   // no touch detected
+        return false;
+    }
+
+    // Read Y value
+    i2c_cmd = i2c_cmd_link_create();
+
+    i2c_master_start(i2c_cmd);
+    i2c_master_write_byte(i2c_cmd, (current_dev_addr << 1) | I2C_MASTER_WRITE, true);
+    i2c_master_write_byte(i2c_cmd, FT6X36_P1_YH_REG, I2C_MASTER_ACK);
+
+    i2c_master_start(i2c_cmd);
+    i2c_master_write_byte(i2c_cmd, (current_dev_addr << 1) | I2C_MASTER_READ, true);
+
+    i2c_master_read_byte(i2c_cmd, &data_xy[2], I2C_MASTER_ACK);     // reads FT6X36_P1_YH_REG
+    i2c_master_read_byte(i2c_cmd, &data_xy[3], I2C_MASTER_NACK);    // reads FT6X36_P1_YL_REG
+    i2c_master_stop(i2c_cmd);
+    ret = i2c_master_cmd_begin(TOUCH_I2C_PORT, i2c_cmd, 1000 / portTICK_RATE_MS);
+    i2c_cmd_link_delete(i2c_cmd);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "Error getting Y coordinates: %s", esp_err_to_name(ret));
+        data->point.x = last_x;
+        data->point.y = last_y;
+        data->state = LV_INDEV_STATE_REL;   // no touch detected
+        return false;
+    }
+
+    last_x = ((data_xy[0] & FT6X36_MSB_MASK) << 8) | (data_xy[1] & FT6X36_LSB_MASK);
+    last_y = ((data_xy[2] & FT6X36_MSB_MASK) << 8) | (data_xy[3] & FT6X36_LSB_MASK);
 
 #if CONFIG_LV_FT6X36_SWAPXY
-    int16_t swap_buf = touch_inputs.last_x;
+    int16_t swap_buf = last_x;
-    touch_inputs.last_x = touch_inputs.last_y;
+    last_x = last_y;
-    touch_inputs.last_y = swap_buf;
+    last_y = swap_buf;
 #endif
 #if CONFIG_LV_FT6X36_INVERT_X
-    touch_inputs.last_x =  LV_HOR_RES - touch_inputs.last_x;
+    last_x =  LV_HOR_RES - last_x;
 #endif
 #if CONFIG_LV_FT6X36_INVERT_Y
-    touch_inputs.last_y = LV_VER_RES - touch_inputs.last_y;
+    last_y = LV_VER_RES - last_y;
 #endif
-    data->point.x = touch_inputs.last_x;
+    //uint16_t lcd_x = p.x *1.37; // Max 240
-    data->point.y = touch_inputs.last_y;
+    //uint16_t lcd_y = p.y *1.51; // Max 400
-    data->state = touch_inputs.current_state;
+    data->point.x = last_x *1.37;
-    ESP_LOGD(TAG, "X=%u Y=%u", data->point.x, data->point.y);
+    data->point.y = last_y *1.51;
-
+    data->state = LV_INDEV_STATE_PR;
-#if CONFIG_LV_FT6X36_COORDINATES_QUEUE
+    ESP_LOGV(TAG, "X=%u Y=%u", data->point.x, data->point.y);
-    xQueueOverwrite( ft6x36_touch_queue_handle, &touch_inputs );
-#endif
-
     return false;
 }

lvgl_touch/ft6x36.h

@@ -23,10 +23,6 @@
 
 #include <stdint.h>
 #include <stdbool.h>
-#if CONFIG_LV_FT6X36_COORDINATES_QUEUE
-#include "freertos/FreeRTOS.h"
-#include "freertos/queue.h"
-#endif
 #ifdef LV_LVGL_H_INCLUDE_SIMPLE
 #include "lvgl.h"
 #else
@@ -149,16 +145,6 @@ typedef struct {
     bool inited;
 } ft6x36_status_t;
 
-typedef struct
-{
-  int16_t last_x;
-  int16_t last_y;
-  lv_indev_state_t current_state;
-} ft6x36_touch_t;
-
-#if CONFIG_LV_FT6X36_COORDINATES_QUEUE
-extern QueueHandle_t ft6x36_touch_queue_handle;
-#endif
 /**
   * @brief  Initialize for FT6x36 communication via I2C
   * @param  dev_addr: Device address on communication Bus (I2C slave address of FT6X36).

lvgl_touch/l58.cpp

@@ -25,6 +25,7 @@
 #include <lvgl/lvgl.h>
 #endif
 #include "l58.h"
+#include "../lvgl_i2c_conf.h"
 // Cale touch implementation
 #include "L58Touch.h"
 L58Touch Touch(CONFIG_LV_TOUCH_INT);

lvgl_touch/touch_driver.c

@@ -4,11 +4,10 @@
 
 #include "touch_driver.h"
 #include "tp_spi.h"
-
+#include "tp_i2c.h"
 // Is not being included in CMakeLists.txt (Research why)
 #include "l58.h"
 
-
 void touch_driver_init(void)
 {
 #if defined (CONFIG_LV_TOUCH_CONTROLLER_XPT2046)
@@ -25,16 +24,10 @@ void touch_driver_init(void)
     /* nothing to do */
 #elif defined (CONFIG_LV_TOUCH_CONTROLLER_RA8875)
     ra8875_touch_init();
-#elif defined (CONFIG_LV_TOUCH_CONTROLLER_GT911)
-    gt911_init(GT911_I2C_SLAVE_ADDR);
 #endif
 }
 
-#if LVGL_VERSION_MAJOR >= 8
-void touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data)
-#else
 bool touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data)
-#endif
 {
     bool res = false;
 
@@ -53,14 +46,8 @@ bool touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data)
     res = FT81x_read(drv, data);
 #elif defined (CONFIG_LV_TOUCH_CONTROLLER_RA8875)
     res = ra8875_touch_read(drv, data);
-#elif defined (CONFIG_LV_TOUCH_CONTROLLER_GT911)
-    res = gt911_read(drv, data);
 #endif
 
-#if LVGL_VERSION_MAJOR >= 8
-    data->continue_reading = res;
-#else
     return res;
-#endif
 }
 

lvgl_touch/touch_driver.h

@@ -32,8 +32,6 @@ extern "C" {
 #include "FT81x.h"
 #elif defined (CONFIG_LV_TOUCH_CONTROLLER_RA8875)
 #include "ra8875_touch.h"
-#elif defined (CONFIG_LV_TOUCH_CONTROLLER_GT911)
-#include "gt911.h"
 #endif
 
 /*********************
@@ -44,12 +42,7 @@ extern "C" {
  * GLOBAL PROTOTYPES
  **********************/
 void touch_driver_init(void);
-
-#if LVGL_VERSION_MAJOR >= 8
-void touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data);
-#else
 bool touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data);
-#endif
 
 #ifdef __cplusplus
 } /* extern "C" */

lvgl_touch/tp_i2c.c

@@ -0,0 +1,43 @@
+/*
+* Copyright © 2020 Wolfgang Christl
+
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this 
+* software and associated documentation files (the “Software”), to deal in the Software 
+* without restriction, including without limitation the rights to use, copy, modify, merge, 
+* publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons 
+* to whom the Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or 
+* substantial portions of the Software.
+* 
+* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
+* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
+* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
+* SOFTWARE.
+*/
+
+#include <driver/i2c.h>
+#include <esp_log.h>
+
+#define I2C_MASTER_FREQ_HZ 100000                             /* 100kHz*/
+#define I2C_MASTER_TX_BUF_DISABLE 0                           /* I2C master doesn't need buffer */
+#define I2C_MASTER_RX_BUF_DISABLE 0                           /* I2C master doesn't need buffer */
+
+/**
+ * @brief ESP32 I2C init as master
+ * @ret ESP32 error code
+ */
+esp_err_t i2c_master_init(void) {
+    int i2c_master_port = I2C_NUM_0;
+    i2c_config_t conf;
+    conf.mode = I2C_MODE_MASTER;
+    conf.sda_io_num = CONFIG_LV_TOUCH_I2C_SDA;
+    conf.sda_pullup_en = GPIO_PULLUP_ENABLE;
+    conf.scl_io_num = CONFIG_LV_TOUCH_I2C_SCL;
+    conf.scl_pullup_en = GPIO_PULLUP_ENABLE;
+    conf.master.clk_speed = I2C_MASTER_FREQ_HZ;
+    i2c_param_config(i2c_master_port, &conf);
+    return i2c_driver_install(i2c_master_port, conf.mode, I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE, 0);
+}

lvgl_touch/tp_i2c.h

@@ -0,0 +1,36 @@
+/*
+* Copyright © 2020 Wolfgang Christl
+
+* Permission is hereby granted, free of charge, to any person obtaining a copy of this 
+* software and associated documentation files (the “Software”), to deal in the Software 
+* without restriction, including without limitation the rights to use, copy, modify, merge, 
+* publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons 
+* to whom the Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or 
+* substantial portions of the Software.
+* 
+* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
+* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
+* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
+* SOFTWARE.
+*/
+
+#ifndef __TS_H
+#define __TS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+esp_err_t i2c_master_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TS_H */