fix(lcd-backlight): Update to ESP IDF v5

with ESP32-C3 specific auto-dma proper selection

.github/workflows/build_examples.yml

@@ -1,29 +0,0 @@
-name: 'build'
-
-on: [push, pull_request]
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        idf_ver: ["v4.1", "v4.2", "v4.3"]
-        idf_target: ["esp32"]
-        include:
-          - idf_ver: "v4.2"
-            idf_target: esp32s2
-          - idf_ver: "v4.3"
-            idf_target: esp32c3
-    runs-on: ubuntu-20.04
-    container: espressif/idf:release-${{ matrix.idf_ver }}
-    steps:
-      - uses: actions/checkout@v1
-        with:
-          submodules: recursive
-      - name: Build ESP examples
-        env:
-          IDF_TARGET: ${{ matrix.idf_target }}
-        shell: bash
-        run: |
-          cd examples/wemos_lolin_oled/hello_world
-          . ${IDF_PATH}/export.sh
-          idf.py build

.gitignore

@@ -56,3 +56,7 @@ dkms.conf
 
 # ESP-IDF build dir
 build
+
+# Kconfig files
+sdkconfig
+sdkconfig.old

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "examples/common_components/lvgl"]
-	path = examples/common_components/lvgl
-	url = https://github.com/lvgl/lvgl.git

CMakeLists.txt

@@ -5,32 +5,50 @@ set(LVGL_INCLUDE_DIRS . lvgl_tft)
 list(APPEND SOURCES "lvgl_tft/disp_driver.c")
 list(APPEND SOURCES "lvgl_tft/esp_lcd_backlight.c")
 
-# This are the source files used for mcu abstraction
-set(LV_PORT_PATH "lv_port")
-
-list(APPEND SOURCES "${LV_PORT_PATH}/lv_port_display_espressif.c")
-
-#@todo add SimleInclude macro here
-
-# Build all display drivers
+# 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_TFT_DISPLAY_CONTROLLER_ILI9481)
     list(APPEND SOURCES "lvgl_tft/ili9481.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9486)
     list(APPEND SOURCES "lvgl_tft/ili9486.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488)
     list(APPEND SOURCES "lvgl_tft/ili9488.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7789)
     list(APPEND SOURCES "lvgl_tft/st7789.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7735S)
     list(APPEND SOURCES "lvgl_tft/st7735s.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7796S)
     list(APPEND SOURCES "lvgl_tft/st7796s.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_HX8357)
     list(APPEND SOURCES "lvgl_tft/hx8357.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_SH1107)
     list(APPEND SOURCES "lvgl_tft/sh1107.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_SSD1306)
     list(APPEND SOURCES "lvgl_tft/ssd1306.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
     list(APPEND SOURCES "lvgl_tft/EVE_commands.c")
     list(APPEND SOURCES "lvgl_tft/FT81x.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_IL3820)
     list(APPEND SOURCES "lvgl_tft/il3820.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_JD79653A)
     list(APPEND SOURCES "lvgl_tft/jd79653a.c")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_UC8151D)
     list(APPEND SOURCES "lvgl_tft/uc8151d.c")
+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")
+elseif(CONFIG_LV_TFT_DISPLAY_CONTROLLER_SCHMITT)
+    list(APPEND SOURCES "lvgl_tft/schmitt.c")
+else()
+    message(WARNING "LVGL ESP32 drivers: Display controller not defined.")
+endif()
 
 if(CONFIG_LV_TFT_DISPLAY_PROTOCOL_SPI)
     list(APPEND SOURCES "lvgl_tft/disp_spi.c")
@@ -70,7 +88,7 @@ endif()
 
 idf_component_register(SRCS ${SOURCES}
                        INCLUDE_DIRS ${LVGL_INCLUDE_DIRS}
-                       REQUIRES lvgl)
+                       REQUIRES lvgl driver esp_common log freertos esp_rom soc)
 
 target_compile_definitions(${COMPONENT_LIB} PUBLIC "-DLV_LVGL_H_INCLUDE_SIMPLE")
 

README.md

@@ -30,6 +30,7 @@ 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                                     |

display_config.h

@@ -1,43 +0,0 @@
-#ifndef DISPLAY_CONFIG_H_
-#define DISPLAY_CONFIG_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "sdkconfig.h"
-
-/* Configuration options for ST7789 display controllers */
-#if CONFIG_LV_DISP_USE_RST
-  #if CONFIG_LV_DISP_ST7789_SOFT_RESET
-    #define ST7789_SOFT_RST
-  #endif
-#else
-  #define ST7789_SOFT_RST
-#endif
-
-#if defined (CONFIG_LV_INVERT_COLORS)
-#define ST7789_INVERT_COLORS    1U
-#define ILI9341_INVERT_COLORS   1U 
-#endif
-    
-#define ST7789_INITIAL_ORIENTATION  CONFIG_LV_DISPLAY_ORIENTATION
-
-#if CONFIG_LV_DISP_USE_RST
-#define ILI9341_USE_RST
-#endif
-
-#define ILI9341_INITIAL_ORIENTATION CONFIG_LV_DISPLAY_ORIENTATION
-
-/* ILI9488 Configuration */
-#if CONFIG_LV_DISP_USE_RST
-#define ILI9488_USE_RST
-#endif
-
-#define ILI9488_INITIAL_ORIENTATION CONFIG_LV_DISPLAY_ORIENTATION
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* DISPLAY_CONFIG_H_ */

examples/common_components/lvgl

@@ -1 +0,0 @@
-Subproject commit ec9de515b36641be565d7bace5863ab631ce3b69

examples/wemos_lolin_oled/hello_world/CMakeLists.txt

@@ -1,9 +0,0 @@
-# For more information about build system see
-# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
-# The following five lines of boilerplate have to be in your project's
-# CMakeLists in this exact order for cmake to work correctly
-cmake_minimum_required(VERSION 3.5)
-
-set(EXTRA_COMPONENT_DIRS ../../common_components ../../..)
-include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(hello_world)

examples/wemos_lolin_oled/hello_world/main/CMakeLists.txt

@@ -1,2 +0,0 @@
-idf_component_register(SRCS "hello_world.c"
-                    INCLUDE_DIRS ".")

examples/wemos_lolin_oled/hello_world/main/hello_world.c

@@ -1,98 +0,0 @@
-/* Hello world on Wemos Lolin32 board
- *
- * This example code is in the Public Domain (or CC0 licensed, at your option.)
- *
- * Unless required by applicable law or agreed to in writing, this
- * software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
- * CONDITIONS OF ANY KIND, either express or implied.
- */
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "esp_freertos_hooks.h"
-#include "freertos/semphr.h"
-#include "esp_system.h"
-#include "driver/gpio.h"
-
-/* Littlevgl specific */
-#ifdef LV_LVGL_H_INCLUDE_SIMPLE
-#include "lvgl.h"
-#else
-#include "lvgl/lvgl.h"
-#endif
-
-#include "lvgl_helpers.h"
-
-/*********************
- *      DEFINES
- *********************/
-#define LV_TICK_PERIOD_MS 1
-
-/**********************
- *  STATIC PROTOTYPES
- **********************/
-static void lvgl_tick_inc(void *arg);
-static void guiTask(void *pvParameter);
-
-/**********************
- *   APPLICATION MAIN
- **********************/
-void app_main()
-{
-    xTaskCreatePinnedToCore(guiTask, "gui", 4096*2, NULL, 0, NULL, 1);
-}
-
-static void guiTask(void *pvParameter)
-{
-    (void) pvParameter;
-    lv_init();
-    lvgl_driver_init();
-
-    lv_color_t* buf1 = heap_caps_malloc(DISP_BUF_SIZE * sizeof(lv_color_t), MALLOC_CAP_DMA);
-    assert(buf1 != NULL);
-
-    static lv_disp_buf_t disp_buf;
-    lv_disp_buf_init(&disp_buf, buf1, NULL, DISP_BUF_SIZE * 8);
-
-    lv_disp_drv_t disp_drv;
-    lv_disp_drv_init(&disp_drv);
-    disp_drv.flush_cb = disp_driver_flush;
-    disp_drv.rounder_cb = disp_driver_rounder;
-    disp_drv.set_px_cb = disp_driver_set_px;
-    disp_drv.buffer = &disp_buf;
-    lv_disp_drv_register(&disp_drv);
-
-    /* Create and start a periodic timer interrupt to call lv_tick_inc */
-    const esp_timer_create_args_t periodic_timer_args = {
-        .callback = &lvgl_tick_inc,
-        .name = "lvgl_tick"
-    };
-    esp_timer_handle_t periodic_timer;
-    ESP_ERROR_CHECK(esp_timer_create(&periodic_timer_args, &periodic_timer));
-    ESP_ERROR_CHECK(esp_timer_start_periodic(periodic_timer, LV_TICK_PERIOD_MS * 1000));
-
-    /* Create a Hellow World label on the currently active screen */
-    lv_obj_t *scr = lv_disp_get_scr_act(NULL);
-    lv_obj_t *label1 =  lv_label_create(scr, NULL);
-    lv_label_set_text(label1, "Hello\nworld");
-
-    /* Align the Label to the center
-     * NULL means align on parent (which is the screen now)
-     * 0, 0 at the end means an x, y offset after alignment*/
-    lv_obj_align(label1, NULL, LV_ALIGN_CENTER, 0, 0);
-
-    while (1) {
-        vTaskDelay(pdMS_TO_TICKS(10));
-        lv_task_handler();
-    }
-    free(buf1);
-}
-
-static void lvgl_tick_inc(void *arg) {
-    (void) arg;
-    lv_tick_inc(LV_TICK_PERIOD_MS);
-}

examples/wemos_lolin_oled/hello_world/sdkconfig.defaults

@@ -1,11 +0,0 @@
-CONFIG_LV_HOR_RES_MAX=128
-CONFIG_LV_VER_RES_MAX=64
-CONFIG_LV_COLOR_DEPTH_1=y
-CONFIG_LV_THEME_MONO=y
-
-CONFIG_LV_PREDEFINED_DISPLAY_WEMOS_LOLIN=y
-
-CONFIG_I2C_MANAGER_0_ENABLED=y
-CONFIG_I2C_MANAGER_0_SDA=5
-CONFIG_I2C_MANAGER_0_SCL=4
-CONFIG_I2C_MANAGER_0_FREQ_HZ=100000

lv_port/lv_port_display_espressif.c

@@ -1,110 +0,0 @@
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-
-#include "display_port.h"
-
-#include "sdkconfig.h"
-#include "driver/gpio.h"
-
-#include "disp_spi.h"
-#include "lvgl_i2c/i2c_manager.h"
-
-/* TODO: This is ssd1306 specific */
-#define OLED_I2C_PORT                       (CONFIG_LV_I2C_DISPLAY_PORT)
-#define OLED_I2C_ADDRESS                    0x3C
-
-#define LV_DISPLAY_DC_CMD_MODE    0
-#define LV_DISPLAY_DC_DATA_MODE   1
-
-void display_port_delay(lv_disp_drv_t *drv, uint32_t delay_ms)
-{
-    (void) drv;
-
-    vTaskDelay(pdMS_TO_TICKS(delay_ms));
-}
-
-void display_port_backlight(lv_disp_drv_t *drv, uint8_t state)
-{
-    (void) drv;
-
-#ifdef CONFIG_LV_DISP_PIN_BCKL
-    gpio_set_level(CONFIG_LV_DISP_PIN_BCKL, state);
-#endif
-}
-
-void display_port_gpio_dc(lv_disp_drv_t *drv, uint8_t state)
-{
-    (void) drv;
-
-#ifdef CONFIG_LV_DISPLAY_USE_DC
-    gpio_set_level(CONFIG_LV_DISP_PIN_DC, state);
-#endif
-}
-
-void display_port_gpio_rst(lv_disp_drv_t *drv, uint8_t state)
-{
-    (void) drv;
-
-#ifdef CONFIG_LV_DISP_USE_RST
-    gpio_set_level(CONFIG_LV_DISP_PIN_RST, state);
-#endif
-}
-
-bool display_port_gpio_is_busy(lv_disp_drv_t *drv)
-{
-    (void) drv;
-
-    bool device_busy = false;
-
-#ifdef CONFIG_LV_DISP_PIN_BUSY
-    /* FIXME Assuming the busy signal in logic 1 means the device is busy */
-    if (gpio_get_level(CONFIG_LV_DISP_PIN_BUSY) == 1) {
-        device_busy = true;
-    }
-#endif
-
-    return device_busy;
-}
-
-void display_interface_send_cmd(lv_disp_drv_t *drv, uint32_t cmd, cmd_width_t cmd_width, void *args, size_t args_len)
-{
-    (void) drv;
-
-#if defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_SPI)
-    disp_wait_for_pending_transactions();
-    display_port_gpio_dc(drv, LV_DISPLAY_DC_CMD_MODE);
-
-    if (CMD_WIDTH_8BITS == cmd_width) {
-        disp_spi_send_data(&cmd, 1);
-    }
-    else if (CMD_WIDTH_16BITS == cmd_width) {
-        /* Send 16bits cmd */
-    }
-    else {
-        /* Unsupported cmd size */
-    }
-
-    if (args != NULL) {
-        display_port_gpio_dc(drv, LV_DISPLAY_DC_DATA_MODE);
-        disp_spi_send_data(args, args_len);
-    }
-#elif defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
-    uint8_t *data = (uint8_t *) args;
-    
-    lvgl_i2c_write(OLED_I2C_PORT, OLED_I2C_ADDRESS, cmd, data, args_len); 
-#endif
-}
-
-void display_interface_send_data(lv_disp_drv_t *drv, void *data, size_t len)
-{
-    (void) drv;
-
-#if defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_SPI)
-    disp_wait_for_pending_transactions();
-    display_port_gpio_dc(drv, LV_DISPLAY_DC_DATA_MODE);
-    disp_spi_send_colors(data, len);
-    /* lv_disp_flush is called in the SPI xfer done callback */
-#elif defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
-    lvgl_i2c_write(OLED_I2C_PORT, OLED_I2C_ADDRESS, OLED_CONTROL_BYTE_DATA_STREAM, data, len);
-#endif
-}

lvgl_helpers.c

@@ -69,6 +69,7 @@ void lvgl_driver_init(void)
         DISP_SPI_IO2, DISP_SPI_IO3);
 
     disp_spi_add_device(TFT_SPI_HOST);
+    disp_driver_init();
 
 #if defined (CONFIG_LV_TOUCH_CONTROLLER_FT81X)
     touch_driver_init();
@@ -88,6 +89,7 @@ void lvgl_driver_init(void)
     disp_spi_add_device(TFT_SPI_HOST);
     tp_spi_add_device(TOUCH_SPI_HOST);
 
+    disp_driver_init();
     touch_driver_init();
 
     return;
@@ -103,7 +105,10 @@ void lvgl_driver_init(void)
         DISP_SPI_IO2, DISP_SPI_IO3);
 
     disp_spi_add_device(TFT_SPI_HOST);
+
+    disp_driver_init();
 #elif defined (CONFIG_LV_I2C_DISPLAY)
+    disp_driver_init();
 #else
 #error "No protocol defined for display controller"
 #endif
@@ -134,39 +139,6 @@ void lvgl_driver_init(void)
 #endif
 }
 
-void display_bsp_init_io(void)
-{
-    esp_err_t err = ESP_OK;
-    gpio_config_t io_conf;
-
-#ifdef CONFIG_LV_DISPLAY_USE_DC
-    io_conf.mode = GPIO_MODE_OUTPUT;
-    io_conf.pin_bit_mask = (1ULL << CONFIG_LV_DISP_PIN_DC);
-    err = gpio_config(&io_conf);
-    ESP_ERROR_CHECK(err);
-#endif
-
-#ifdef CONFIG_LV_DISP_USE_RST
-    io_conf.mode = GPIO_MODE_OUTPUT;
-    io_conf.pin_bit_mask = (1ULL << CONFIG_LV_DISP_PIN_RST);
-    err = gpio_config(&io_conf);
-    ESP_ERROR_CHECK(err);
-#endif
-
-#if !defined(CONFIG_LV_DISP_BACKLIGHT_OFF) && defined(CONFIG_LV_DISP_PIN_BCKL)
-    io_conf.mode = GPIO_MODE_OUTPUT;
-    io_conf.pin_bit_mask = (1ULL << CONFIG_LV_DISP_PIN_BCKL);
-    err = gpio_config(&io_conf);
-    ESP_ERROR_CHECK(err);
-#endif
-
-#ifdef CONFIG_LV_DISP_PIN_BUSY
-    io_conf.mode = GPIO_MODE_INPUT;
-    io_conf.pin_bit_mask = (1ULL << CONFIG_LV_DISP_PIN_BUSY);
-    err = gpio_config(&io_conf);
-    ESP_ERROR_CHECK(err);
-#endif
-}
 
 /* Initialize spi bus master
  *
@@ -182,34 +154,12 @@ bool lvgl_spi_driver_init(int host,
     int dma_channel,
     int quadwp_pin, int quadhd_pin)
 {
-    int dma_chan = 0 /* SPI_DMA_DISABLED */;
-
-#if defined (CONFIG_IDF_TARGET_ESP32)
-    assert((SPI_HOST <= host) && (VSPI_HOST >= host));
-    const char *spi_names[] = {
-        "SPI_HOST", "HSPI_HOST", "VSPI_HOST"
-    };
-
-    dma_chan = dma_channel;
-#elif defined (CONFIG_IDF_TARGET_ESP32S2)
-    assert((SPI_HOST <= host) && (HSPI_HOST >= host));
-    const char *spi_names[] = {
-        "SPI_HOST", "", ""
-    };
-
-    dma_chan = dma_channel;
-#elif defined (CONFIG_IDF_TARGET_ESP32C3)
-    assert((SPI1_HOST <= host) && (SPI3_HOST >= host));
+    assert((0 <= host) && (3 > host));
     const char *spi_names[] = {
         "SPI1_HOST", "SPI2_HOST", "SPI3_HOST"
     };
 
-    dma_chan = 3 /* SPI_DMA_CH_AUTO */;
-#else
-#error "Target chip not selected"
-#endif
-
-    ESP_LOGI(TAG, "Configuring SPI host %s (%d)", spi_names[host], host);
+    ESP_LOGI(TAG, "Configuring SPI host %s", spi_names[host]);
     ESP_LOGI(TAG, "MISO pin: %d, MOSI pin: %d, SCLK pin: %d, IO2/WP pin: %d, IO3/HD pin: %d",
         miso_pin, mosi_pin, sclk_pin, quadwp_pin, quadhd_pin);
 
@@ -217,17 +167,19 @@ bool lvgl_spi_driver_init(int host,
 
     spi_bus_config_t buscfg = {
         .miso_io_num = miso_pin,
-	.mosi_io_num = mosi_pin,
-	.sclk_io_num = sclk_pin,
-	.quadwp_io_num = quadwp_pin,
-	.quadhd_io_num = quadhd_pin,
+        .mosi_io_num = mosi_pin,
+        .sclk_io_num = sclk_pin,
+        .quadwp_io_num = quadwp_pin,
+        .quadhd_io_num = quadhd_pin,
         .max_transfer_sz = max_transfer_sz
     };
 
     ESP_LOGI(TAG, "Initializing SPI bus...");
-    esp_err_t ret = spi_bus_initialize(host, &buscfg, dma_chan);
+    #if defined (CONFIG_IDF_TARGET_ESP32C3)
+    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

@@ -76,6 +76,10 @@ extern "C" {
 #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))
+#elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_SCHMITT)
+#define DISP_BUF_SIZE  (LV_HOR_RES_MAX * LV_VER_RES_MAX)
 #else
 #error "No display controller selected"
 #endif
@@ -98,8 +102,6 @@ void lvgl_driver_init(void);
 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 display GPIOs, e.g. DC and RST pins */
-void display_bsp_init_io(void);
 /**********************
  *      MACROS
  **********************/

lvgl_spi_conf.h

@@ -64,16 +64,10 @@ extern "C" {
 
 #define ENABLE_TOUCH_INPUT  CONFIG_LV_ENABLE_TOUCH
 
-#if defined (CONFIG_LV_TFT_DISPLAY_SPI_HSPI)
-#if defined (CONFIG_IDF_TARGET_ESP32C3)
-#define TFT_SPI_HOST    SPI2_HOST
-#else
-#define TFT_SPI_HOST    HSPI_HOST
-#endif
-#elif defined (CONFIG_LV_TFT_DISPLAY_SPI_VSPI)
-#define TFT_SPI_HOST    VSPI_HOST
-#elif defined (CONFIG_LV_TFT_DISPLAY_SPI_FSPI)
-#define TFT_SPI_HOST    FSPI_HOST
+#if defined (CONFIG_LV_TFT_DISPLAY_SPI2_HOST)
+#define TFT_SPI_HOST SPI2_HOST
+#elif defined (CONFIG_LV_TFT_DISPLAY_SPI3_HOST)
+#define TFT_SPI_HOST SPI3_HOST
 #endif
 
 #if defined (CONFIG_LV_TFT_DISPLAY_SPI_HALF_DUPLEX)
@@ -90,12 +84,10 @@ extern "C" {
 #define DISP_SPI_TRANS_MODE_SIO
 #endif
 
-#if defined (CONFIG_LV_TOUCH_CONTROLLER_SPI_HSPI)
-#define TOUCH_SPI_HOST HSPI_HOST
-#elif defined (CONFIG_LV_TOUCH_CONTROLLER_SPI_VSPI)
-#define TOUCH_SPI_HOST VSPI_HOST
-#elif defined (CONFIG_LV_TOUCH_CONTROLLER_SPI_FSPI)
-#define TOUCH_SPI_HOST FSPI_HOST
+#if defined (CONFIG_LV_TOUCH_CONTROLLER_SPI2_HOST)
+#define TOUCH_SPI_HOST SPI2_HOST
+#elif defined (CONFIG_LV_TOUCH_CONTROLLER_SPI3_HOST)
+#define TOUCH_SPI_HOST SPI3_HOST
 #endif
 
 /* Handle the FT81X Special case */
@@ -111,7 +103,7 @@ 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 (HSPI, VSPI or FSPI) for both display and touch driver
+#error You must specify the same SPI host (SPIx_HOST) for both display and touch driver
 #endif
 
 #define SHARED_SPI_BUS
@@ -122,7 +114,11 @@ extern "C" {
 /**********************
  *      TYPEDEFS
  **********************/
-#if defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481) || \
+#if defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_SCHMITT)
+
+#define SPI_BUS_MAX_TRANSFER_SZ (DISP_BUF_SIZE * 4)
+
+#elif defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481) || \
     defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488)
 
 #define SPI_BUS_MAX_TRANSFER_SZ (DISP_BUF_SIZE * 3)
@@ -166,8 +162,10 @@ extern "C" {
 #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)
+#define SPI_TFT_CLOCK_SPEED_HZ  (5*1000*1000) // Set to 40 later
 #endif
 
 #endif

lvgl_tft/EVE_commands.c

@@ -41,11 +41,6 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 
 
 #include <stdio.h>
-#include <string.h>
-
-#if defined (BT81X_ENABLE)
-#include <stdarg.h>
-#endif
 
 #include "EVE.h"
 #include "EVE_commands.h"
@@ -55,8 +50,19 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 #include "driver/gpio.h"
 #include "esp_log.h"
 #include "soc/soc_memory_layout.h"
+
+#include "esp_log.h"
+
 #include "disp_spi.h"
 
+#include <string.h>
+
+#if defined (BT81X_ENABLE)
+#include <stdarg.h>
+#endif
+
+#define TAG_LOG "FT81X"
+
 /* data structure for SPI reading that has (optional) space for inserted dummy byte */
 typedef struct _spi_read_data {
 #if defined(DISP_SPI_FULL_DUPLEX)
@@ -869,13 +875,13 @@ uint8_t EVE_init(void)
 
 	/* The most reliable DIO/QIO switching point is after EVE start up but before reading the ChipID. */
 #if defined(DISP_SPI_TRANS_MODE_DIO)
-	LV_LOG_INFO("Switching to DIO mode");
+	ESP_LOGI(TAG_LOG, "Switching to DIO mode");
 	DELAY_MS(20);	/* different boards may take a different delay but this generally seems to work */
 	EVE_memWrite16(REG_SPI_WIDTH, SPI_WIDTH_DIO);
 	SPIInherentSendFlags = DISP_SPI_MODE_DIO | DISP_SPI_MODE_DIOQIO_ADDR;
 	SPIDummyReadBits = 4;	/* Esp32 DMA SPI transaction dummy_bits works more like clock cycles, so in DIO 4 dummy_bits == 8 total bits */
 #elif defined(DISP_SPI_TRANS_MODE_QIO)
-	LV_LOG_INFO("Switching to QIO mode");
+	ESP_LOGI(TAG_LOG, "Switching to QIO mode");
 	DELAY_MS(20);	/* different boards may take a different delay but this generally seems to work */
 	EVE_memWrite16(REG_SPI_WIDTH, SPI_WIDTH_QIO);
 	SPIInherentSendFlags = DISP_SPI_MODE_QIO | DISP_SPI_MODE_DIOQIO_ADDR;
@@ -891,7 +897,7 @@ uint8_t EVE_init(void)
 		timeout++;
 		if(timeout > 400)
 		{
-			LV_LOG_WARN("Failed to read ChipID...aborting initialization.");
+			ESP_LOGI(TAG_LOG, "Failed to read ChipID...aborting initialization.");
 			return 0;
 		}
 	}
@@ -903,7 +909,7 @@ uint8_t EVE_init(void)
 		timeout++;
 		if(timeout > 50) /* experimental, 10 was the lowest value to get the BT815 started with, the touch-controller was the last to get out of reset */
 		{
-			LV_LOG_WARN("Failed to read CPU status...aborting initialization.");
+			ESP_LOGI(TAG_LOG, "Failed to read CPU status...aborting initialization.");
 			return 0;
 		}
 	}

lvgl_tft/EVE_config.h

@@ -208,8 +208,6 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 #define EVE_SUNFLOWER
 #elif defined(CONFIG_LV_FT81X_CONFIG_EVE_CONNECTEVE)
 #define EVE_CONNECTEVE
-#else
-#define EVE_EVE2_35 // Define something if there is no Kconfig option selected
 #endif
 
 /* display timing parameters below */

lvgl_tft/GC9A01.c

@@ -16,6 +16,7 @@
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "GC9A01"
 
 /**********************
  *      TYPEDEFS
@@ -125,7 +126,7 @@ void GC9A01_init(void)
 	vTaskDelay(100 / portTICK_RATE_MS);
 #endif
 
-	LV_LOG_INFO("Initialization.");
+	ESP_LOGI(TAG, "Initialization.");
 
 	//Send all the commands
 	uint16_t cmd = 0;
@@ -219,23 +220,23 @@ static void GC9A01_send_color(void * data, uint16_t length)
 
 static void GC9A01_set_orientation(uint8_t orientation)
 {
-    assert(orientation < 4);
+    // ESP_ASSERT(orientation < 4);
 
     const char *orientation_str[] = {
         "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
     };
 
-    LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+    ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
 #if defined CONFIG_LV_PREDEFINED_DISPLAY_M5STACK
-    const uint8_t data[] = {0x68, 0x68, 0x08, 0x08};
+    uint8_t data[] = {0x68, 0x68, 0x08, 0x08};  ///
 #elif defined (CONFIG_LV_PREDEFINED_DISPLAY_WROVER4)
-    const uint8_t data[] = {0x4C, 0x88, 0x28, 0xE8};
-#else
-    const uint8_t data[] = {0x08, 0xC8, 0x68, 0xA8};
+    uint8_t data[] = {0x4C, 0x88, 0x28, 0xE8}; ///
+#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)
+    uint8_t data[] = {0x08, 0xC8, 0x68, 0xA8}; ///ggggg
 #endif
 
-    LV_LOG_INFO("0x36 command value: 0x%02X", data[orientation]);
+    ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
 
     GC9A01_send_cmd(0x36);
     GC9A01_send_data((void *) &data[orientation], 1);

lvgl_tft/Kconfig

@@ -22,7 +22,7 @@ menu "LVGL TFT Display controller"
             select LV_TFT_DISPLAY_CONTROLLER_ILI9341
             select LV_TFT_DISPLAY_PROTOCOL_SPI
         config LV_PREDEFINED_DISPLAY_M5CORE2
-        	bool "M5Core2"
+            bool "M5Core2"
             select LV_TFT_DISPLAY_CONTROLLER_ILI9341
             select LV_TFT_DISPLAY_PROTOCOL_SPI
         config LV_PREDEFINED_DISPLAY_M5STICK
@@ -174,6 +174,14 @@ menu "LVGL TFT Display controller"
         help
             ILI9163C display controller.
 
+    config LV_TFT_DISPLAY_CONTROLLER_PCD8544
+        bool
+        help
+            PCD8544 display controller (Nokia 3110/5110)
+    config LV_TFT_DISPLAY_CONTROLLER_SCHMITT
+        bool
+        help
+            Schmitt's display controller
     # Display controller communication protocol
     #
     # This symbols define the communication protocol used by the
@@ -340,6 +348,15 @@ menu "LVGL TFT Display controller"
             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
+        config LV_TFT_DISPLAY_USER_CONTROLLER_SCHMITT
+            bool "SCHMITT"
+            select LV_TFT_DISPLAY_CONTROLLER_SCHMITT
+            select LV_TFT_DISPLAY_PROTOCOL_SPI
     endchoice
 
     config CUSTOM_DISPLAY_BUFFER_SIZE
@@ -460,18 +477,14 @@ menu "LVGL TFT Display controller"
 
     choice
         prompt "TFT SPI Bus." if LV_TFT_DISPLAY_PROTOCOL_SPI
-        default LV_TFT_DISPLAY_SPI_VSPI if LV_PREDEFINED_DISPLAY_TTGO && \
-            !IDF_TARGET_ESP32S2
-        default LV_TFT_DISPLAY_SPI_FSPI if IDF_TARGET_ESP32S2
+        default LV_TFT_DISPLAY_SPI2_HOST
         help
               Select the SPI Bus the TFT Display is attached to.
 
-        config LV_TFT_DISPLAY_SPI_HSPI
-            bool "HSPI"
-        config LV_TFT_DISPLAY_SPI_VSPI
-            bool "VSPI" if !IDF_TARGET_ESP32S2
-        config LV_TFT_DISPLAY_SPI_FSPI
-            bool "FSPI" if IDF_TARGET_ESP32S2
+        config LV_TFT_DISPLAY_SPI2_HOST
+            bool "SPI2_HOST"
+        config LV_TFT_DISPLAY_SPI3_HOST
+            bool "SPI3_HOST"
     endchoice
 
     choice
@@ -1003,6 +1016,3 @@ menu "LVGL TFT Display controller"
         default 0
 
 endmenu
-
-
-

lvgl_tft/disp_driver.c

@@ -7,16 +7,16 @@
 #include "esp_lcd_backlight.h"
 #include "sdkconfig.h"
 
-void *disp_driver_init(lv_disp_drv_t *drv)
+void *disp_driver_init(void)
 {
 #if defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9341
-    ili9341_init(drv);
+    ili9341_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481
     ili9481_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488
-    ili9488_init(drv);
+    ili9488_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7789
-    st7789_init(drv);
+    st7789_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7796S
     st7796s_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7735S
@@ -28,7 +28,7 @@ void *disp_driver_init(lv_disp_drv_t *drv)
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_SH1107
     sh1107_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_SSD1306
-    ssd1306_init(drv);
+    ssd1306_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X
     FT81x_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_IL3820
@@ -43,13 +43,12 @@ void *disp_driver_init(lv_disp_drv_t *drv)
    uc8151d_init();
 #elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9163C
     ili9163c_init();
+#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_PCD8544
+    pcd8544_init();
+#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_SCHMITT
+    schmitt_init();
 #endif
 
-    return disp_backlight_init();
-}
-
-void *disp_backlight_init(void)
-{
     // 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))
@@ -112,6 +111,10 @@ void disp_driver_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t *
     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);
+#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_SCHMITT
+    schmitt_flush(drv, area, color_map);
 #endif
 }
 
@@ -127,6 +130,8 @@ 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
+    pcd8544_rounder(disp_drv, area);
 #endif
 }
 
@@ -143,5 +148,7 @@ 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

@@ -52,6 +52,10 @@ extern "C" {
 #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"
+#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_SCHMITT
+#include "schmitt.h"
 #endif
 
 /*********************
@@ -67,7 +71,7 @@ extern "C" {
  **********************/
 
 /* Initialize display */
-void *disp_driver_init(lv_disp_drv_t *drv);
+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);
@@ -79,8 +83,6 @@ void disp_driver_rounder(lv_disp_drv_t * disp_drv, lv_area_t * area);
 void disp_driver_set_px(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);
 
-/* Display backlight configuration */
-void *disp_backlight_init(void);
 /**********************
  *      MACROS
  **********************/

lvgl_tft/display_port.h

@@ -1,93 +0,0 @@
-#ifndef DISPLAY_PORT_H_
-#define DISPLAY_PORT_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#ifdef LV_LVGL_H_INCLUDE_SIMPLE
-#include "lvgl.h"
-#else
-#include "lvgl/lvgl.h"
-#endif
-
-#include <stdint.h>
-#include <stdbool.h>
-
-enum {
-    CMD_WIDTH_8BITS,
-    CMD_WIDTH_16BITS,
-    CMD_WIDTH_INVALID,
-};
-
-typedef uint8_t cmd_width_t;
-
-/**
- * Busy wait delay port
- *
- * @param drv Pointer to driver See @ref lv_disp_drv_t
- * @param delay_ms Delay duration in milliseconds
- */
-void display_port_delay(lv_disp_drv_t *drv, uint32_t delay_ms);
-
-/**
- * Backlight control port
- *
- * @param drv Pointer to driver See @ref lv_disp_drv_t
- * @param state State of the backlight signal
- */
-void display_port_backlight(lv_disp_drv_t *drv, uint8_t state);
-
-/**
- * DC signal control port
- *
- * @param drv Pointer to driver See @ref lv_disp_drv_t
- * @param state State of the DC signal, 1 for logic high, 0 for logic low
- */
-void display_port_gpio_dc(lv_disp_drv_t *drv, uint8_t state);
-
-/**
- * Hardware reset control port
- *
- * @param drv Pointer to driver See @ref lv_disp_drv_t
- * @param state State of the reset signal, 1 for logic high, 0 for logic low
- */
-void display_port_gpio_rst(lv_disp_drv_t *drv, uint8_t state);
-
-/**
- * Display is busy port
- *
- * @param drv Pointer to driver See @ref lv_disp_drv_t
- *
- * @retval Returns false when display is not busy, true otherwise.
- */
-bool display_port_gpio_is_busy(lv_disp_drv_t *drv);
-
-/**
- * Send cmd to display
- * 
- * @param drv Pointer to driver
- * @param cmd Command to send
- * @param cmd_width Width of the command (in bits) to be sent, see @ref cmd_width_t
- * @param args Pointer to arguments, use NULL to send command without arguments
- * @param args_len Arguments length (in bytes) to be sent
- */
-void display_interface_send_cmd(lv_disp_drv_t *drv, uint32_t cmd, cmd_width_t cmd_width, void *args, size_t args_len);
-
-/**
- * Send (image) data to display
- *
- * User must call lv_disp_flush after the image is sent
- *
- * @param drv Pointer to driver
- * @param data Pointer to data to be sent
- * @param len Data length (in bytes) to be sent
- */
-void display_interface_send_data(lv_disp_drv_t *drv, void *data, size_t len);
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif

lvgl_tft/esp_lcd_backlight.c

@@ -8,10 +8,12 @@
  *********************/
 #include "esp_lcd_backlight.h"
 #include "driver/ledc.h"
-#include "driver/gpio.h"
+#include "rom/gpio.h"
 #include "esp_log.h"
 #include "soc/ledc_periph.h" // to invert LEDC output on IDF version < v4.3
 
+#define SIG_GPIO_OUT_IDX 128
+
 typedef struct {
     bool pwm_control; // true: LEDC is used, false: GPIO is used
     int index;        // Either GPIO or LEDC channel
@@ -49,7 +51,7 @@ disp_backlight_h disp_backlight_new(const disp_backlight_config_t *config)
         };
         const ledc_timer_config_t LCD_backlight_timer = {
             .speed_mode = LEDC_LOW_SPEED_MODE,
-            .bit_num = LEDC_TIMER_10_BIT,
+            .duty_resolution = LEDC_TIMER_10_BIT,
             .timer_num = config->timer_idx,
             .freq_hz = 5000,
             .clk_cfg = LEDC_AUTO_CLK};

lvgl_tft/hx8357.c

@@ -18,12 +18,15 @@
 #include "hx8357.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include <esp_log.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
 /*********************
  *      DEFINES
  *********************/
+#define TAG        "HX8357"
+
 #define MADCTL_MY  0x80 ///< Bottom to top
 #define MADCTL_MX  0x40 ///< Right to left
 #define MADCTL_MV  0x20 ///< Reverse Mode
@@ -171,7 +174,7 @@ void hx8357_init(void)
 	vTaskDelay(120 / portTICK_RATE_MS);
 #endif
 
-	LV_LOG_INFO("Initialization.");
+	ESP_LOGI(TAG, "Initialization.");
 
 	//Send all the commands
 	const uint8_t *addr = (displayType == HX8357B) ? initb : initd;

lvgl_tft/il3820.c

@@ -30,6 +30,7 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
  *********************/
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
@@ -38,6 +39,7 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "IL3820"
 
 /**
  * SSD1673, SSD1608 compatible EPD controller driver.
@@ -178,9 +180,7 @@ void il3820_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf,
         BIT_CLEAR(buf[byte_index], 7 - bit_index);
     }
 #else
-    (void)byte_index;
-    (void)bit_index;
-    assert(false); // Unsupported orientation configured. Crash if we get here, but allow compilation for CI
+#error "Unsupported orientation used"
 #endif
 }
 
@@ -277,7 +277,7 @@ static void il3820_waitbusy(int wait_ms)
         vTaskDelay(10 / portTICK_RATE_MS);
     }
 
-    LV_LOG_ERROR("Busy exceeded %dms", i*10 );
+    ESP_LOGE( TAG, "busy exceeded %dms", i*10 );
 }
 
 /* Set DC signal to command mode */

lvgl_tft/ili9163c.c

@@ -9,6 +9,7 @@
 #include "ili9163c.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "assert.h"
@@ -16,6 +17,8 @@
 /*********************
  *      DEFINES
  *********************/
+#define TAG "ILI9163C"
+
 // ILI9163C specific commands used in init
 #define ILI9163C_NOP 0x00
 #define ILI9163C_SWRESET 0x01
@@ -66,7 +69,7 @@
 
 #define ST77XX_MADCTL_MY 0x80
 #define ST77XX_MADCTL_MX 0x40
-#define ST77XX_MADCTL_MV 0x20
+#define ST77XX_MADCTL_MV 0x20 #define
 #define ST77XX_MADCTL_ML 0x10
 #define ST77XX_MADCTL_RGB 0x00
 #define ST77XX_MADCTL_BGR 0x08
@@ -91,7 +94,7 @@ static void ili9163c_set_orientation(uint8_t orientation);
 static void ili9163c_send_cmd(uint8_t cmd);
 static void ili9163c_send_data(void *data, uint16_t length);
 static void ili9163c_send_color(void *data, uint16_t length);
-static void ili9163c_reset(void);
+
 /**********************
  *  STATIC VARIABLES
  **********************/
@@ -106,7 +109,7 @@ static void ili9163c_reset(void);
 
 void ili9163c_init(void)
 {
-	LV_LOG_INFO("Init");
+	ESP_LOGD(TAG, "Init");
 
 	lcd_init_cmd_t ili_init_cmds[] = {
 		{ILI9163C_SWRESET, {0}, 0x80},		 // Software reset, 0 args, w/delay 120ms
@@ -133,8 +136,18 @@ void ili9163c_init(void)
 		{ILI9163C_DISPON, {0}, 0x80},																						// Main screen turn on, no args w/delay 100 ms delay
 		{0, {0}, 0xff}
 	};
- 
-        ili9163c_reset();
+
+	//Initialize non-SPI GPIOs
+	gpio_pad_select_gpio(ILI9163C_DC);
+	gpio_set_direction(ILI9163C_DC, GPIO_MODE_OUTPUT);
+	gpio_pad_select_gpio(ILI9163C_RST);
+	gpio_set_direction(ILI9163C_RST, GPIO_MODE_OUTPUT);
+
+	//Reset the display
+	gpio_set_level(ILI9163C_RST, 0);
+	vTaskDelay(100 / portTICK_RATE_MS);
+	gpio_set_level(ILI9163C_RST, 1);
+	vTaskDelay(150 / portTICK_RATE_MS);
 
 	//Send all the commands
 	uint16_t cmd = 0;
@@ -226,21 +239,10 @@ static void ili9163c_set_orientation(uint8_t orientation)
 	const char *orientation_str[] = {
 		"PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"};
 
-	LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+	ESP_LOGD(TAG, "Display orientation: %s", orientation_str[orientation]);
 
 	uint8_t data[] = {0x48, 0x88, 0xA8, 0x68};
 
 	ili9163c_send_cmd(ILI9163C_MADCTL);
 	ili9163c_send_data((void *)&data[orientation], 1);
 }
-
-static void ili9163c_reset(void)
-{
-#if CONFIG_LV_DISP_USE_RST
-    gpio_set_level(ILI9163C_RST, 0);
-    vTaskDelay(100 / portTICK_RATE_MS);
-    gpio_set_level(ILI9163C_RST, 1);
-    vTaskDelay(150 / portTICK_RATE_MS);
-#else
-#endif
-}

lvgl_tft/ili9341.c

@@ -7,23 +7,22 @@
  *      INCLUDES
  *********************/
 #include "ili9341.h"
-
-#include "display_port.h"
+#include "disp_spi.h"
+#include "driver/gpio.h"
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
 
 /*********************
  *      DEFINES
  *********************/
-#define END_OF_CMD_MARKER           0xFFU
-
-#define MEMORY_ACCESS_CONTROL_REG   0x36U
-#define SOFTWARE_RESET_REG          0x01U
+ #define TAG "ILI9341"
 
 /**********************
  *      TYPEDEFS
  **********************/
 
 /*The LCD needs a bunch of command/argument values to be initialized. They are stored in this struct. */
-
 typedef struct {
     uint8_t cmd;
     uint8_t data[16];
@@ -33,8 +32,12 @@ typedef struct {
 /**********************
  *  STATIC PROTOTYPES
  **********************/
-static void ili9341_set_orientation(lv_disp_drv_t * drv, uint8_t orientation);
-static void ili9341_reset(lv_disp_drv_t * drv);
+static void ili9341_set_orientation(uint8_t orientation);
+
+static void ili9341_send_cmd(uint8_t cmd);
+static void ili9341_send_data(void * data, uint16_t length);
+static void ili9341_send_color(void * data, uint16_t length);
+
 /**********************
  *  STATIC VARIABLES
  **********************/
@@ -47,143 +50,162 @@ static void ili9341_reset(lv_disp_drv_t * drv);
  *   GLOBAL FUNCTIONS
  **********************/
 
-void ili9341_init(lv_disp_drv_t * drv)
+void ili9341_init(void)
 {
-    lcd_init_cmd_t ili_init_cmds[] = {
-        {0xCF, {0x00, 0x83, 0X30}, 3},
-        {0xED, {0x64, 0x03, 0X12, 0X81}, 4},
-        {0xE8, {0x85, 0x01, 0x79}, 3},
-        {0xCB, {0x39, 0x2C, 0x00, 0x34, 0x02}, 5},
-        {0xF7, {0x20}, 1},
-        {0xEA, {0x00, 0x00}, 2},
-        /* Power control */
-        {0xC0, {0x26}, 1},
-        /* Power control */
-        {0xC1, {0x11}, 1},
-        /* VCOM control */
-        {0xC5, {0x35, 0x3E}, 2},
-        /* VCOM control */
-        {0xC7, {0xBE}, 1},
-        /* Memory Access Control */
-        {0x36, {0x28}, 1},
-        /* Pixel Format Set */
-        {0x3A, {0x55}, 1},
-        {0xB1, {0x00, 0x1B}, 2},
-        {0xF2, {0x08}, 1},
-        {0x26, {0x01}, 1},
-        {0xE0, {0x1F, 0x1A, 0x18, 0x0A, 0x0F, 0x06, 0x45, 0X87, 0x32, 0x0A, 0x07, 0x02, 0x07, 0x05, 0x00}, 15},
-        {0XE1, {0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3A, 0x78, 0x4D, 0x05, 0x18, 0x0D, 0x38, 0x3A, 0x1F}, 15},
-        {0x2A, {0x00, 0x00, 0x00, 0xEF}, 4},
-        {0x2B, {0x00, 0x00, 0x01, 0x3f}, 4},
-        {0x2C, {0}, 0},
-        {0xB7, {0x07}, 1},
-        {0xB6, {0x0A, 0x82, 0x27, 0x00}, 4},
-        {0x11, {0}, 0x80},
-        {0x29, {0}, 0x80},
-        {0, {0}, END_OF_CMD_MARKER},
-    };
+	lcd_init_cmd_t ili_init_cmds[]={
+		{0xCF, {0x00, 0x83, 0X30}, 3},
+		{0xED, {0x64, 0x03, 0X12, 0X81}, 4},
+		{0xE8, {0x85, 0x01, 0x79}, 3},
+		{0xCB, {0x39, 0x2C, 0x00, 0x34, 0x02}, 5},
+		{0xF7, {0x20}, 1},
+		{0xEA, {0x00, 0x00}, 2},
+		{0xC0, {0x26}, 1},          /*Power control*/
+		{0xC1, {0x11}, 1},          /*Power control */
+		{0xC5, {0x35, 0x3E}, 2},    /*VCOM control*/
+		{0xC7, {0xBE}, 1},          /*VCOM control*/
+		{0x36, {0x28}, 1},          /*Memory Access Control*/
+		{0x3A, {0x55}, 1},			/*Pixel Format Set*/
+		{0xB1, {0x00, 0x1B}, 2},
+		{0xF2, {0x08}, 1},
+		{0x26, {0x01}, 1},
+		{0xE0, {0x1F, 0x1A, 0x18, 0x0A, 0x0F, 0x06, 0x45, 0X87, 0x32, 0x0A, 0x07, 0x02, 0x07, 0x05, 0x00}, 15},
+		{0XE1, {0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3A, 0x78, 0x4D, 0x05, 0x18, 0x0D, 0x38, 0x3A, 0x1F}, 15},
+		{0x2A, {0x00, 0x00, 0x00, 0xEF}, 4},
+		{0x2B, {0x00, 0x00, 0x01, 0x3f}, 4},
+		{0x2C, {0}, 0},
+		{0xB7, {0x07}, 1},
+		{0xB6, {0x0A, 0x82, 0x27, 0x00}, 4},
+		{0x11, {0}, 0x80},
+		{0x29, {0}, 0x80},
+		{0, {0}, 0xff},
+	};
 
-    ili9341_reset(drv);
+	//Initialize non-SPI GPIOs
+    gpio_pad_select_gpio(ILI9341_DC);
+	gpio_set_direction(ILI9341_DC, GPIO_MODE_OUTPUT);
 
-    //Send all the commands
-    uint16_t idx = 0;
-    while (ili_init_cmds[idx].databytes != END_OF_CMD_MARKER) {
-        uint8_t cmd = ili_init_cmds[idx].cmd;
-        void *args = ili_init_cmds[idx].data;
-        size_t args_len = ili_init_cmds[idx].databytes & 0x1F;
+#if ILI9341_USE_RST
+    gpio_pad_select_gpio(ILI9341_RST);
+	gpio_set_direction(ILI9341_RST, GPIO_MODE_OUTPUT);
 
-        display_interface_send_cmd(drv, cmd, CMD_WIDTH_8BITS, args, args_len);
-        
-        if (ili_init_cmds[idx].databytes & 0x80) {
-            display_port_delay(drv, 100);
-        }
+	//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
 
-        idx++;
-    }
+	ESP_LOGI(TAG, "Initialization.");
 
-    ili9341_set_orientation(drv, ILI9341_INITIAL_ORIENTATION);
+	//Send all the commands
+	uint16_t cmd = 0;
+	while (ili_init_cmds[cmd].databytes!=0xff) {
+		ili9341_send_cmd(ili_init_cmds[cmd].cmd);
+		ili9341_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
+		if (ili_init_cmds[cmd].databytes & 0x80) {
+			vTaskDelay(100 / portTICK_RATE_MS);
+		}
+		cmd++;
+	}
 
-#if ILI9341_INVERT_COLORS == 1U
-    display_interface_send_cmd(drv, 0x21, CMD_WIDTH_8BITS, NULL, 0);
+    ili9341_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
+
+#if ILI9341_INVERT_COLORS == 1
+	ili9341_send_cmd(0x21);
 #else
-    display_interface_send_cmd(drv, 0x20, CMD_WIDTH_8BITS, NULL, 0);
+	ili9341_send_cmd(0x20);
 #endif
 }
 
 
 void ili9341_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
 {
-    uint8_t data[4] = {0};
-    uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
+	uint8_t data[4];
 
-#if LV_COLOR_DEPTH == 16
-    /* Each pixel is 2bytes */
-    size *= 2;
-#endif
+	/*Column addresses*/
+	ili9341_send_cmd(0x2A);
+	data[0] = (area->x1 >> 8) & 0xFF;
+	data[1] = area->x1 & 0xFF;
+	data[2] = (area->x2 >> 8) & 0xFF;
+	data[3] = area->x2 & 0xFF;
+	ili9341_send_data(data, 4);
 
-    /*Column addresses*/
-    data[0] = (area->x1 >> 8) & 0xFF;
-    data[1] = area->x1 & 0xFF;
-    data[2] = (area->x2 >> 8) & 0xFF;
-    data[3] = area->x2 & 0xFF;
-    
-    display_interface_send_cmd(drv, 0x2A, CMD_WIDTH_8BITS, data, sizeof(data));
+	/*Page addresses*/
+	ili9341_send_cmd(0x2B);
+	data[0] = (area->y1 >> 8) & 0xFF;
+	data[1] = area->y1 & 0xFF;
+	data[2] = (area->y2 >> 8) & 0xFF;
+	data[3] = area->y2 & 0xFF;
+	ili9341_send_data(data, 4);
 
-    /* Page addresses */
-    data[0] = (area->y1 >> 8) & 0xFF;
-    data[1] = area->y1 & 0xFF;
-    data[2] = (area->y2 >> 8) & 0xFF;
-    data[3] = area->y2 & 0xFF;
-    
-    display_interface_send_cmd(drv, 0x2B, CMD_WIDTH_8BITS, data, sizeof(data));
-
-    /* Memory write */
-    display_interface_send_cmd(drv, 0x2C, CMD_WIDTH_8BITS, NULL, 0);
-    display_interface_send_data(drv, color_map, size);
+	/*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_sleep_in(lv_disp_drv_t * drv)
+void ili9341_sleep_in()
 {
-    uint8_t data[] = {0x08};
-    display_interface_send_cmd(drv, 0x10, CMD_WIDTH_8BITS, data, 1);
+	uint8_t data[] = {0x08};
+	ili9341_send_cmd(0x10);
+	ili9341_send_data(&data, 1);
 }
 
-void ili9341_sleep_out(lv_disp_drv_t * drv)
+void ili9341_sleep_out()
 {
-    uint8_t data[] = {0x08};
-    display_interface_send_cmd(drv, 0x11, CMD_WIDTH_8BITS, data, 1);
+	uint8_t data[] = {0x08};
+	ili9341_send_cmd(0x11);
+	ili9341_send_data(&data, 1);
 }
 
 /**********************
  *   STATIC FUNCTIONS
  **********************/
-static void ili9341_set_orientation(lv_disp_drv_t *drv, uint8_t orientation)
+
+
+static void ili9341_send_cmd(uint8_t cmd)
 {
-    assert(orientation < 4);
+    disp_wait_for_pending_transactions();
+    gpio_set_level(ILI9341_DC, 0);	 /*Command mode*/
+    disp_spi_send_data(&cmd, 1);
+}
+
+static void ili9341_send_data(void * data, uint16_t length)
+{
+    disp_wait_for_pending_transactions();
+    gpio_set_level(ILI9341_DC, 1);	 /*Data mode*/
+    disp_spi_send_data(data, length);
+}
+
+static void ili9341_send_color(void * data, uint16_t length)
+{
+    disp_wait_for_pending_transactions();
+    gpio_set_level(ILI9341_DC, 1);   /*Data mode*/
+    disp_spi_send_colors(data, length);
+}
+
+static void ili9341_set_orientation(uint8_t orientation)
+{
+    // ESP_ASSERT(orientation < 4);
+
+    const char *orientation_str[] = {
+        "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
+    };
+
+    ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
 #if defined CONFIG_LV_PREDEFINED_DISPLAY_M5STACK
-    const uint8_t data[] = {0x68, 0x68, 0x08, 0x08};
+    uint8_t data[] = {0x68, 0x68, 0x08, 0x08};
 #elif defined (CONFIG_LV_PREDEFINED_DISPLAY_M5CORE2)
-	const uint8_t data[] = {0x08, 0x88, 0x28, 0xE8};
+	uint8_t data[] = {0x08, 0x88, 0x28, 0xE8};
 #elif defined (CONFIG_LV_PREDEFINED_DISPLAY_WROVER4)
-    const uint8_t data[] = {0x6C, 0xEC, 0xCC, 0x4C};
-#else
-    const uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
+    uint8_t data[] = {0x6C, 0xEC, 0xCC, 0x4C};
+#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)
+    uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
 #endif
 
-    display_interface_send_cmd(drv, MEMORY_ACCESS_CONTROL_REG, CMD_WIDTH_8BITS, &data[orientation], 1);
-}
+    ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
 
-/* Reset the display, if we don't have a reset pin we use software reset */
-static void ili9341_reset(lv_disp_drv_t *drv)
-{
-#if defined(ILI9341_USE_RST)
-    display_port_gpio_rst(drv, 0);
-    display_port_delay(drv, 100);
-    display_port_gpio_rst(drv, 1);
-    display_port_delay(drv, 100);
-#else
-    display_interface_send_cmd(drv, SOFTWARE_RESET_REG, CMD_WIDTH_8BITS, NULL, 0);
-    display_port_delay(drv, 5);
-#endif
+    ili9341_send_cmd(0x36);
+    ili9341_send_data((void *) &data[orientation], 1);
 }

lvgl_tft/ili9341.h

@@ -13,17 +13,23 @@ extern "C" {
 /*********************
  *      INCLUDES
  *********************/
+#include <stdbool.h>
+
 #ifdef LV_LVGL_H_INCLUDE_SIMPLE
 #include "lvgl.h"
 #else
 #include "lvgl/lvgl.h"
 #endif
 
-#include "display_config.h"
+#include "sdkconfig.h"
 
 /*********************
  *      DEFINES
  *********************/
+#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_INVERT_COLORS CONFIG_LV_INVERT_COLORS
 
 /**********************
  *      TYPEDEFS
@@ -33,10 +39,10 @@ extern "C" {
  * GLOBAL PROTOTYPES
  **********************/
 
-void ili9341_init(lv_disp_drv_t * drv);
+void ili9341_init(void);
 void ili9341_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
-void ili9341_sleep_in(lv_disp_drv_t * drv);
-void ili9341_sleep_out(lv_disp_drv_t *drv);
+void ili9341_sleep_in(void);
+void ili9341_sleep_out(void);
 
 /**********************
  *      MACROS

lvgl_tft/ili9481.c

@@ -8,13 +8,16 @@
 #include "ili9481.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "esp_heap_caps.h"
+
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "ILI9481"
 
 /**********************
  *      TYPEDEFS
@@ -85,7 +88,7 @@ void ili9481_init(void)
     vTaskDelay(100 / portTICK_RATE_MS);
 #endif
 
-    LV_LOG_INFO("Initialization.");
+    ESP_LOGI(TAG, "ILI9481 initialization.");
 
     // Exit sleep
     ili9481_send_cmd(0x01);	/* Software reset */
@@ -114,7 +117,7 @@ void ili9481_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
     uint8_t *mybuf;
     do {
         mybuf = (uint8_t *) heap_caps_malloc(3 * size * sizeof(uint8_t), MALLOC_CAP_DMA);
-        if (mybuf == NULL)  LV_LOG_WARN("Could not allocate enough DMA memory!");
+        if (mybuf == NULL)  ESP_LOGW(TAG, "Could not allocate enough DMA memory!");
     } while (mybuf == NULL);
 
     uint32_t LD = 0;
@@ -193,7 +196,7 @@ static void ili9481_set_orientation(uint8_t orientation)
         "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
     };
 
-    LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+    ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
     uint8_t data[] = {0x48, 0x4B, 0x28, 0x2B};
     ili9481_send_cmd(ILI9481_CMD_MEMORY_ACCESS_CONTROL);

lvgl_tft/ili9486.c

@@ -9,12 +9,14 @@
 #include "ili9486.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "ILI9486"
 
 /**********************
  *      TYPEDEFS
@@ -78,7 +80,7 @@ void ili9486_init(void)
 	vTaskDelay(100 / portTICK_RATE_MS);
 #endif
 
-	LV_LOG_INFO("ILI9486 Initialization.");
+	ESP_LOGI(TAG, "ILI9486 Initialization.");
 
 	//Send all the commands
 	uint16_t cmd = 0;
@@ -163,17 +165,19 @@ static void ili9486_send_color(void * data, uint16_t length)
 
 static void ili9486_set_orientation(uint8_t orientation)
 {
-    assert(orientation < 4);
+    // ESP_ASSERT(orientation < 4);
 
     const char *orientation_str[] = {
         "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
     };
 
-    LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+    ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
-    const uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
+#if defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)
+    uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
+#endif
 
-    LV_LOG_INFO("0x36 command value: 0x%02X", data[orientation]);
+    ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
 
     ili9486_send_cmd(0x36);
     ili9486_send_data((void *) &data[orientation], 1);

lvgl_tft/ili9488.c

@@ -6,14 +6,18 @@
  *      INCLUDES
  *********************/
 #include "ili9488.h"
-
 #include "disp_spi.h"
-#include "display_port.h"
+#include "driver/gpio.h"
+#include "esp_log.h"
 #include "esp_heap_caps.h"
 
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "ILI9488"
 
 /**********************
  *      TYPEDEFS
@@ -29,12 +33,11 @@ typedef struct {
 /**********************
  *  STATIC PROTOTYPES
  **********************/
-static void ili9488_set_orientation(lv_disp_drv_t * drv, uint8_t orientation);
+static void ili9488_set_orientation(uint8_t orientation);
 
-static void ili9488_send_cmd(lv_disp_drv_t * drv, uint8_t cmd);
-static void ili9488_send_data(lv_disp_drv_t * drv, void * data, uint16_t length);
-static void ili9488_send_color(lv_disp_drv_t * drv, void * data, uint16_t length);
-static void ili9488_reset(lv_disp_drv_t * drv);
+static void ili9488_send_cmd(uint8_t cmd);
+static void ili9488_send_data(void * data, uint16_t length);
+static void ili9488_send_color(void * data, uint16_t length);
 
 /**********************
  *  STATIC VARIABLES
@@ -49,47 +52,62 @@ static void ili9488_reset(lv_disp_drv_t * drv);
  **********************/
 // From github.com/jeremyjh/ESP32_TFT_library
 // From github.com/mvturnho/ILI9488-lvgl-ESP32-WROVER-B
-void ili9488_init(lv_disp_drv_t * drv)
+void ili9488_init(void)
 {
-    lcd_init_cmd_t ili_init_cmds[]={
-        {ILI9488_CMD_SLEEP_OUT, {0x00}, 0x80},
-        {ILI9488_CMD_POSITIVE_GAMMA_CORRECTION, {0x00, 0x03, 0x09, 0x08, 0x16, 0x0A, 0x3F, 0x78, 0x4C, 0x09, 0x0A, 0x08, 0x16, 0x1A, 0x0F}, 15},
-        {ILI9488_CMD_NEGATIVE_GAMMA_CORRECTION, {0x00, 0x16, 0x19, 0x03, 0x0F, 0x05, 0x32, 0x45, 0x46, 0x04, 0x0E, 0x0D, 0x35, 0x37, 0x0F}, 15},
-        {ILI9488_CMD_POWER_CONTROL_1, {0x17, 0x15}, 2},
-        {ILI9488_CMD_POWER_CONTROL_2, {0x41}, 1},
-        {ILI9488_CMD_VCOM_CONTROL_1, {0x00, 0x12, 0x80}, 3},
-        {ILI9488_CMD_MEMORY_ACCESS_CONTROL, {(0x20 | 0x08)}, 1},
-        {ILI9488_CMD_COLMOD_PIXEL_FORMAT_SET, {0x66}, 1},
-        {ILI9488_CMD_INTERFACE_MODE_CONTROL, {0x00}, 1},
-        {ILI9488_CMD_FRAME_RATE_CONTROL_NORMAL, {0xA0}, 1},
-        {ILI9488_CMD_DISPLAY_INVERSION_CONTROL, {0x02}, 1},
-        {ILI9488_CMD_DISPLAY_FUNCTION_CONTROL, {0x02, 0x02}, 2},
-        {ILI9488_CMD_SET_IMAGE_FUNCTION, {0x00}, 1},
-        {ILI9488_CMD_WRITE_CTRL_DISPLAY, {0x28}, 1},
-        {ILI9488_CMD_WRITE_DISPLAY_BRIGHTNESS, {0x7F}, 1},
-        {ILI9488_CMD_ADJUST_CONTROL_3, {0xA9, 0x51, 0x2C, 0x02}, 4},
-        {ILI9488_CMD_DISPLAY_ON, {0x00}, 0x80},
-        {0, {0}, 0xff},
-    };
+	lcd_init_cmd_t ili_init_cmds[]={
+                {ILI9488_CMD_SLEEP_OUT, {0x00}, 0x80},
+		{ILI9488_CMD_POSITIVE_GAMMA_CORRECTION, {0x00, 0x03, 0x09, 0x08, 0x16, 0x0A, 0x3F, 0x78, 0x4C, 0x09, 0x0A, 0x08, 0x16, 0x1A, 0x0F}, 15},
+		{ILI9488_CMD_NEGATIVE_GAMMA_CORRECTION, {0x00, 0x16, 0x19, 0x03, 0x0F, 0x05, 0x32, 0x45, 0x46, 0x04, 0x0E, 0x0D, 0x35, 0x37, 0x0F}, 15},
+		{ILI9488_CMD_POWER_CONTROL_1, {0x17, 0x15}, 2},
+		{ILI9488_CMD_POWER_CONTROL_2, {0x41}, 1},
+		{ILI9488_CMD_VCOM_CONTROL_1, {0x00, 0x12, 0x80}, 3},
+		{ILI9488_CMD_MEMORY_ACCESS_CONTROL, {(0x20 | 0x08)}, 1},
+		{ILI9488_CMD_COLMOD_PIXEL_FORMAT_SET, {0x66}, 1},
+		{ILI9488_CMD_INTERFACE_MODE_CONTROL, {0x00}, 1},
+		{ILI9488_CMD_FRAME_RATE_CONTROL_NORMAL, {0xA0}, 1},
+		{ILI9488_CMD_DISPLAY_INVERSION_CONTROL, {0x02}, 1},
+		{ILI9488_CMD_DISPLAY_FUNCTION_CONTROL, {0x02, 0x02}, 2},
+		{ILI9488_CMD_SET_IMAGE_FUNCTION, {0x00}, 1},
+		{ILI9488_CMD_WRITE_CTRL_DISPLAY, {0x28}, 1},
+		{ILI9488_CMD_WRITE_DISPLAY_BRIGHTNESS, {0x7F}, 1},
+		{ILI9488_CMD_ADJUST_CONTROL_3, {0xA9, 0x51, 0x2C, 0x02}, 4},
+		{ILI9488_CMD_DISPLAY_ON, {0x00}, 0x80},
+		{0, {0}, 0xff},
+	};
 
-    ili9488_reset(drv);
+	//Initialize non-SPI GPIOs
+    gpio_pad_select_gpio(ILI9488_DC);
+	gpio_set_direction(ILI9488_DC, GPIO_MODE_OUTPUT);
 
-    LV_LOG_INFO("ILI9488 initialization.");
+#if ILI9488_USE_RST
+    gpio_pad_select_gpio(ILI9488_RST);
+	gpio_set_direction(ILI9488_RST, GPIO_MODE_OUTPUT);
 
-    //Send all the commands
-    uint16_t cmd = 0;
-    while (ili_init_cmds[cmd].databytes!=0xff) {
-        ili9488_send_cmd(drv, ili_init_cmds[cmd].cmd);
-        ili9488_send_data(drv, ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
-        
-        if (ili_init_cmds[cmd].databytes & 0x80) {
-            display_port_delay(drv, 100);
-        }
+	//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
 
-        cmd++;
-    }
+	ESP_LOGI(TAG, "ILI9488 initialization.");
 
-    ili9488_set_orientation(drv, ILI9488_INITIAL_ORIENTATION);
+	// Exit sleep
+	ili9488_send_cmd(0x01);	/* Software reset */
+	vTaskDelay(100 / portTICK_RATE_MS);
+
+	//Send all the commands
+	uint16_t cmd = 0;
+	while (ili_init_cmds[cmd].databytes!=0xff) {
+		ili9488_send_cmd(ili_init_cmds[cmd].cmd);
+		ili9488_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
+		if (ili_init_cmds[cmd].databytes & 0x80) {
+			vTaskDelay(100 / portTICK_RATE_MS);
+		}
+		cmd++;
+	}
+
+    ili9488_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 }
 
 // Flush function based on mvturnho repo
@@ -101,9 +119,7 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
     uint8_t *mybuf;
     do {
         mybuf = (uint8_t *) heap_caps_malloc(3 * size * sizeof(uint8_t), MALLOC_CAP_DMA);
-        if (mybuf == NULL) {
-            LV_LOG_WARN("Could not allocate enough DMA memory!");
-        }
+        if (mybuf == NULL)  ESP_LOGW(TAG, "Could not allocate enough DMA memory!");
     } while (mybuf == NULL);
 
     uint32_t LD = 0;
@@ -136,17 +152,17 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
 	};
 
 	/*Column addresses*/
-	ili9488_send_cmd(drv, ILI9488_CMD_COLUMN_ADDRESS_SET);
-	ili9488_send_data(drv, xb, 4);
+	ili9488_send_cmd(ILI9488_CMD_COLUMN_ADDRESS_SET);
+	ili9488_send_data(xb, 4);
 
 	/*Page addresses*/
-	ili9488_send_cmd(drv, ILI9488_CMD_PAGE_ADDRESS_SET);
-	ili9488_send_data(drv, yb, 4);
+	ili9488_send_cmd(ILI9488_CMD_PAGE_ADDRESS_SET);
+	ili9488_send_data(yb, 4);
 
 	/*Memory write*/
-	ili9488_send_cmd(drv, ILI9488_CMD_MEMORY_WRITE);
+	ili9488_send_cmd(ILI9488_CMD_MEMORY_WRITE);
 
-	ili9488_send_color(drv, (void *) mybuf, size * 3);
+	ili9488_send_color((void *) mybuf, size * 3);
 	heap_caps_free(mybuf);
 }
 
@@ -154,65 +170,44 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
  *   STATIC FUNCTIONS
  **********************/
 
-static inline void set_cmd_mode(lv_disp_drv_t * drv)
-{
-    display_port_gpio_dc(drv, 0);
-}
 
-static inline void set_data_mode(lv_disp_drv_t * drv)
-{
-    display_port_gpio_dc(drv, 1);
-}
-
-static void ili9488_send_cmd(lv_disp_drv_t * drv, uint8_t cmd)
+static void ili9488_send_cmd(uint8_t cmd)
 {
     disp_wait_for_pending_transactions();
-    set_cmd_mode(drv);
+    gpio_set_level(ILI9488_DC, 0);	 /*Command mode*/
     disp_spi_send_data(&cmd, 1);
 }
 
-static void ili9488_send_data(lv_disp_drv_t * drv, void * data, uint16_t length)
+static void ili9488_send_data(void * data, uint16_t length)
 {
     disp_wait_for_pending_transactions();
-    set_data_mode(drv);
+    gpio_set_level(ILI9488_DC, 1);	 /*Data mode*/
     disp_spi_send_data(data, length);
 }
 
-static void ili9488_send_color(lv_disp_drv_t * drv, void * data, uint16_t length)
+static void ili9488_send_color(void * data, uint16_t length)
 {
     disp_wait_for_pending_transactions();
-    set_data_mode(drv);
+    gpio_set_level(ILI9488_DC, 1);   /*Data mode*/
     disp_spi_send_colors(data, length);
 }
 
-static void ili9488_set_orientation(lv_disp_drv_t * drv, uint8_t orientation)
+static void ili9488_set_orientation(uint8_t orientation)
 {
-    assert(orientation < 4);
+    // ESP_ASSERT(orientation < 4);
 
     const char *orientation_str[] = {
         "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
     };
 
-    LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+    ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
-    const uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
-
-    LV_LOG_INFO("0x36 command value: 0x%02X", data[orientation]);
-
-    ili9488_send_cmd(drv, 0x36);
-    ili9488_send_data(drv, (void *) &data[orientation], 1);
-}
-
-/* Reset the display, if we don't have a reset pin we use software reset */
-static void ili9488_reset(lv_disp_drv_t *drv)
-{
-#if defined(ILI9488_USE_RST)
-    display_port_gpio_rst(drv, 0);
-    display_port_delay(drv, 100);
-    display_port_gpio_rst(drv, 1);
-    display_port_delay(drv, 100);
-#else
-    ili9341_send_cmd(drv, 0x01);
-    display_port_delay(drv, 5);
+#if defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)
+    uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
 #endif
+
+    ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
+
+    ili9488_send_cmd(0x36);
+    ili9488_send_data((void *) &data[orientation], 1);
 }

lvgl_tft/ili9488.h

@@ -20,13 +20,14 @@ extern "C" {
 #else
 #include "lvgl/lvgl.h"
 #endif
-
 #include "../lvgl_helpers.h"
-#include "display_config.h"
 
 /*********************
  *      DEFINES
  *********************/
+#define ILI9488_DC      CONFIG_LV_DISP_PIN_DC
+#define ILI9488_RST     CONFIG_LV_DISP_PIN_RST
+#define ILI9488_USE_RST CONFIG_LV_DISP_USE_RSTS
 
 /*******************
  * ILI9488 REGS
@@ -143,7 +144,7 @@ typedef struct {
  * GLOBAL PROTOTYPES
  **********************/
 
-void ili9488_init(lv_disp_drv_t * drv);
+void ili9488_init(void);
 void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
 
 /**********************

lvgl_tft/jd79653a.c

@@ -29,18 +29,17 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 #include <freertos/task.h>
 #include <freertos/event_groups.h>
 #include <driver/gpio.h>
+#include <esp_log.h>
 
 #include "disp_spi.h"
 #include "jd79653a.h"
 
+#define TAG "lv_jd79653a"
+
 #define PIN_DC              CONFIG_LV_DISP_PIN_DC
 #define PIN_DC_BIT          ((1ULL << (uint8_t)(CONFIG_LV_DISP_PIN_DC)))
-
-#if defined CONFIG_LV_DISP_PIN_RST
 #define PIN_RST             CONFIG_LV_DISP_PIN_RST
 #define PIN_RST_BIT         ((1ULL << (uint8_t)(CONFIG_LV_DISP_PIN_RST)))
-#endif
-
 #define PIN_BUSY            CONFIG_LV_DISP_PIN_BUSY
 #define PIN_BUSY_BIT        ((1ULL << (uint8_t)(CONFIG_LV_DISP_PIN_BUSY)))
 #define EVT_BUSY            (1UL << 0UL)
@@ -124,9 +123,10 @@ static const uint8_t lut_bb1[] = {
 static const jd79653a_seq_t init_seq[] = {
 #if defined (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED)
         {0x00, {0xd3, 0x0e},       2},                 // Panel settings
-//#elif defined(CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
-#else
+#elif defined(CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
         {0x00, {0xdf, 0x0e}, 2},                 // Panel settings
+#else
+#error "Unsupported orientation - only portrait modes are supported for now"
 #endif
         {0x4d, {0x55}, 1},                             // Undocumented secret from demo code
         {0xaa, {0x0f}, 1},                             // Undocumented secret from demo code
@@ -185,7 +185,7 @@ static void jd79653a_spi_send_fb(uint8_t *data, size_t len)
 
 static void jd79653a_spi_send_seq(const jd79653a_seq_t *seq, size_t len)
 {
-    LV_LOG_INFO("Writing cmd/data sequence, count %u", len);
+    ESP_LOGD(TAG, "Writing cmd/data sequence, count %u", len);
 
     if (!seq || len < 1) return;
     for (size_t cmd_idx = 0; cmd_idx < len; cmd_idx++) {
@@ -241,7 +241,7 @@ static void jd79653a_load_partial_lut()
 
 static void jd79653a_partial_in()
 {
-    LV_LOG_INFO("Partial in!");
+    ESP_LOGD(TAG, "Partial in!");
 
     // Panel setting: accept LUT from registers instead of OTP
 #if defined (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED)
@@ -249,8 +249,7 @@ static void jd79653a_partial_in()
 #elif defined(CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
     uint8_t pst_use_reg_lut[] = { 0xff, 0x0e };
 #else
-    assert(false); // Unsupported orientation configured. Crash if we get here, but allow compilation for CI
-    uint8_t pst_use_reg_lut[] = { 0,0 };
+#error "Unsupported orientation - only portrait modes are supported for now"
 #endif
     jd79653a_spi_send_cmd(0x00);
     jd79653a_spi_send_data(pst_use_reg_lut, sizeof(pst_use_reg_lut));
@@ -269,7 +268,7 @@ static void jd79653a_partial_in()
 
 static void jd79653a_partial_out()
 {
-    LV_LOG_INFO("Partial out!");
+    ESP_LOGD(TAG, "Partial out!");
 
     // Panel setting: use LUT from OTP
 #if defined (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED)
@@ -277,8 +276,7 @@ static void jd79653a_partial_out()
 #elif defined(CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
     uint8_t pst_use_otp_lut[] = { 0xdf, 0x0e };
 #else
-    assert(false); // Unsupported orientation configured. Crash if we get here, but allow compilation for CI
-    uint8_t pst_use_otp_lut[] = { 0,0 };
+#error "Unsupported orientation - only portrait modes are supported for now"
 #endif
     jd79653a_spi_send_cmd(0x00);
     jd79653a_spi_send_data(pst_use_otp_lut, sizeof(pst_use_otp_lut));
@@ -296,10 +294,10 @@ static void jd79653a_update_partial(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t
 {
     jd79653a_power_on();
     jd79653a_partial_in();
-    LV_LOG_INFO("x1: 0x%x, x2: 0x%x, y1: 0x%x, y2: 0x%x", x1, x2, y1, y2);
+    ESP_LOGD(TAG, "x1: 0x%x, x2: 0x%x, y1: 0x%x, y2: 0x%x", x1, x2, y1, y2);
 
     size_t len = ((x2 - x1 + 1) * (y2 - y1 + 1)) / 8;
-    LV_LOG_INFO("Writing PARTIAL LVGL fb with len: %u", len);
+    ESP_LOGD(TAG, "Writing PARTIAL LVGL fb with len: %u", len);
 
     // Set partial window
     uint8_t ptl_setting[7] = { x1, x2, 0, y1, 0, y2, 0x01 };
@@ -315,18 +313,16 @@ static void jd79653a_update_partial(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t
         len -= EPD_ROW_LEN;
     }
 
-    LV_LOG_INFO("Partial wait start");
+    ESP_LOGD(TAG, "Partial wait start");
 
     jd79653a_spi_send_cmd(0x12);
     jd79653a_wait_busy(0);
 
-    LV_LOG_INFO("Partial updated");
+    ESP_LOGD(TAG, "Partial updated");
     jd79653a_partial_out();
     jd79653a_power_off();
 }
 
-static void jd79653a_reset(void);
-
 void jd79653a_fb_set_full_color(uint8_t color)
 {
     jd79653a_power_on();
@@ -357,7 +353,7 @@ void jd79653a_fb_set_full_color(uint8_t color)
 void jd79653a_fb_full_update(uint8_t *data, size_t len)
 {
     jd79653a_power_on();
-    LV_LOG_INFO("Performing full update, len: %u", len);
+    ESP_LOGD(TAG, "Performing full update, len: %u", len);
 
     uint8_t *data_ptr = data;
 
@@ -376,7 +372,7 @@ void jd79653a_fb_full_update(uint8_t *data, size_t len)
         len -= EPD_ROW_LEN;
     }
 
-    LV_LOG_INFO("Rest len: %u", len);
+    ESP_LOGD(TAG, "Rest len: %u", len);
 
     jd79653a_spi_send_cmd(0x12); // Issue refresh command
     vTaskDelay(pdMS_TO_TICKS(100));
@@ -411,13 +407,13 @@ void jd79653a_lv_fb_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t
 {
     size_t len = ((area->x2 - area->x1 + 1) * (area->y2 - area->y1 + 1)) / 8;
 
-    LV_LOG_INFO("x1: 0x%x, x2: 0x%x, y1: 0x%x, y2: 0x%x", area->x1, area->x2, area->y1, area->y2);
-    LV_LOG_INFO("Writing LVGL fb with len: %u, partial counter: %u", len, partial_counter);
+    ESP_LOGD(TAG, "x1: 0x%x, x2: 0x%x, y1: 0x%x, y2: 0x%x", area->x1, area->x2, area->y1, area->y2);
+    ESP_LOGD(TAG, "Writing LVGL fb with len: %u, partial counter: %u", len, partial_counter);
 
     uint8_t *buf = (uint8_t *) color_map;
 
     if (partial_counter == 0) {
-        LV_LOG_INFO("Refreshing in FULL");
+        ESP_LOGD(TAG, "Refreshing in FULL");
         jd79653a_fb_full_update(buf, ((EPD_HEIGHT * EPD_WIDTH) / 8));
         partial_counter = EPD_PARTIAL_CNT; // Reset partial counter here
     } else {
@@ -443,10 +439,20 @@ void jd79653a_init()
     // Initialise event group
     jd79653a_evts = xEventGroupCreate();
     if (!jd79653a_evts) {
-        LV_LOG_ERROR("Failed when initialising event group!");
+        ESP_LOGE(TAG, "Failed when initialising event group!");
         return;
     }
 
+    // Setup output pins, output (PP)
+    gpio_config_t out_io_conf = {
+            .intr_type = GPIO_INTR_DISABLE,
+            .mode = GPIO_MODE_OUTPUT,
+            .pin_bit_mask = PIN_DC_BIT | PIN_RST_BIT,
+            .pull_down_en = 0,
+            .pull_up_en = 0,
+    };
+    ESP_ERROR_CHECK(gpio_config(&out_io_conf));
+
     // Setup input pin, pull-up, input
     gpio_config_t in_io_conf = {
             .intr_type = GPIO_INTR_POSEDGE,
@@ -459,25 +465,18 @@ void jd79653a_init()
     gpio_install_isr_service(0);
     gpio_isr_handler_add(PIN_BUSY, jd79653a_busy_intr, (void *) PIN_BUSY);
 
-    jd79653a_reset();
+    // Hardware reset
+    gpio_set_level(PIN_RST, 0);
+    vTaskDelay(pdMS_TO_TICKS(15)); // At least 10ms, leave 15ms for now just in case...
+    gpio_set_level(PIN_RST, 1);
+    vTaskDelay(pdMS_TO_TICKS(120));
 
     // Dump in initialise sequence
     jd79653a_spi_send_seq(init_seq, EPD_SEQ_LEN(init_seq));
-    LV_LOG_INFO("Panel init sequence sent");
+    ESP_LOGI(TAG, "Panel init sequence sent");
 
     // Check BUSY status here
     jd79653a_wait_busy(0);
 
-    LV_LOG_INFO("Panel is up!");
-}
-
-static void jd79653a_reset(void)
-{
-#if defined CONFIG_LV_DISP_PIN_RST
-    gpio_set_level(PIN_RST, 0);
-    // At least 10ms, leave 15ms for now just in case...
-    vTaskDelay(pdMS_TO_TICKS(15));
-    gpio_set_level(PIN_RST, 1);
-    vTaskDelay(pdMS_TO_TICKS(120));
-#endif
+    ESP_LOGI(TAG, "Panel is up!");
 }

lvgl_tft/pcd8544.c

@@ -0,0 +1,148 @@
+/**
+ * @file pcd8544.c
+ *
+ * Roughly based on:
+ *    https://github.com/adafruit/Adafruit-PCD8544-Nokia-5110-LCD-library
+ *    https://github.com/olikraus/u8g2
+ */
+
+#include "disp_spi.h"
+#include "driver/gpio.h"
+
+#include <esp_log.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "pcd8544.h"
+
+#define TAG "lv_pcd8544"
+
+/**********************
+ *      MACROS
+ **********************/
+
+#define BIT_SET(a,b) ((a) |= (1U<<(b)))
+#define BIT_CLEAR(a,b) ((a) &= ~(1U<<(b)))
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static void pcd8544_send_cmd(uint8_t cmd)
+{
+    disp_wait_for_pending_transactions();
+    gpio_set_level(PCD8544_DC, 0);	 /*Command mode*/
+    disp_spi_send_data(&cmd, 1);
+}
+
+static void pcd8544_send_data(void * data, uint16_t length)
+{
+    disp_wait_for_pending_transactions();
+    gpio_set_level(PCD8544_DC, 1);	 /*Data mode*/
+    disp_spi_send_data(data, length);
+}
+
+static void pcd8544_send_colors(void * data, uint16_t length)
+{
+    gpio_set_level(PCD8544_DC, 1);	 /*Data mode*/
+    disp_spi_send_colors(data, length);
+}
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+void pcd8544_init(void){
+
+    // TODO: orientation
+
+    // Initialize non-SPI GPIOs
+    gpio_pad_select_gpio(PCD8544_DC);
+    gpio_set_direction(PCD8544_DC, GPIO_MODE_OUTPUT);
+    gpio_pad_select_gpio(PCD8544_RST);
+    gpio_set_direction(PCD8544_RST, GPIO_MODE_OUTPUT);
+
+    // Reset the display
+    gpio_set_level(PCD8544_RST, 0);
+    vTaskDelay(100 / portTICK_RATE_MS);
+    gpio_set_level(PCD8544_RST, 1);
+    vTaskDelay(100 / portTICK_RATE_MS);
+
+    pcd8544_send_cmd(0x21);     /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */
+    pcd8544_send_cmd(0x06);     /* temp. control: b10 = 2  */
+    pcd8544_send_cmd(0x13);     /* bias system 1:48 */
+    pcd8544_send_cmd(0xc0);     /* medium Vop = Contrast 0x40 = 64 */
+
+    pcd8544_send_cmd(0x20);     /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=0) */
+    pcd8544_send_cmd(0x0c);     /* display mode normal */
+}
+
+void pcd8544_set_contrast (uint8_t contrast){
+    if (contrast > 0x7f){
+        contrast = 0x7f;
+    }
+    pcd8544_send_cmd(0x21);                /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */
+    pcd8544_send_cmd(0x80 | contrast);     /* medium Vop = Contrast */
+}
+
+void pcd8544_rounder(lv_disp_drv_t * disp_drv, lv_area_t *area){
+    uint8_t hor_max = disp_drv->hor_res;
+    uint8_t ver_max = disp_drv->ver_res;
+
+    area->x1 = 0;
+    area->y1 = 0;
+    area->x2 = hor_max - 1;
+    area->y2 = ver_max - 1;
+}
+
+void pcd8544_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){
+
+    uint8_t set = (color.full == 0) && (LV_OPA_TRANSP != opa);
+
+    uint16_t byte_index = x + (( y>>3 ) * buf_w);
+    uint8_t  bit_index  = y & 0x7;
+
+    if (set) {
+        BIT_SET(buf[byte_index], bit_index);
+    } else {
+        BIT_CLEAR(buf[byte_index], bit_index);
+    }
+}
+
+void pcd8544_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_map){
+
+    pcd8544_send_cmd(0x20);     /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=0) */
+
+    uint8_t * buf = (uint8_t *) color_map;
+
+    // Check if the whole frame buffer can be sent in a single SPI transaction
+
+    if ((area->x1 == 0) && (area->y1 == 0) && (area->x2 == (disp_drv->hor_res - 1)) && (area->y2 == (disp_drv->ver_res - 1))){
+
+        // send complete frame buffer at once. 
+        // NOTE: disp_spi_send_colors triggers lv_disp_flush_ready
+
+        pcd8544_send_cmd(0x40);  /* set Y address */
+        pcd8544_send_cmd(0x80);  /* set X address */
+        pcd8544_send_colors(buf, disp_drv->hor_res * disp_drv->ver_res / 8);
+
+    } else {
+
+        // send horizontal tiles
+
+        uint16_t bank_start =  area->y1 / 8;
+        uint16_t bank_end   =  area->y2 / 8;
+
+        uint16_t bank;
+        uint16_t cols_to_update = area->x2 - area->x1 + 1;
+        for (bank = bank_start ; bank <= bank_end ; bank++ ){
+            pcd8544_send_cmd(0x40 | bank );      /* set Y address */
+            pcd8544_send_cmd(0x80 | area->x1 );  /* set X address */
+            uint16_t offset = bank * disp_drv->hor_res + area->x1;
+            pcd8544_send_data(&buf[offset], cols_to_update);
+        }
+
+        lv_disp_flush_ready(disp_drv);
+    }
+}

lvgl_tft/pcd8544.h

@@ -0,0 +1,57 @@
+
+/**
+ * @file pcd8544.h
+ *
+ */
+
+#ifndef PCD8544_H
+#define PCD8544_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include <stdbool.h>
+
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+#include "lvgl/lvgl.h"
+#endif
+
+/*********************
+ *      DEFINES
+ *********************/
+
+#define PCD8544_DC   CONFIG_LV_DISP_PIN_DC
+#define PCD8544_RST  CONFIG_LV_DISP_PIN_RST
+#define PCD8544_BCKL CONFIG_LV_DISP_PIN_BCKL
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+void pcd8544_init(void);
+void pcd8544_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+void pcd8544_rounder(lv_disp_drv_t * disp_drv, lv_area_t *area);
+void pcd8544_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 pcd8544_set_contrast(uint8_t contrast);
+
+/**********************
+ *      MACROS
+ **********************/
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*PCD8544_H*/

lvgl_tft/ra8875.c

@@ -9,12 +9,16 @@
 #include "ra8875.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
 /*********************
  *      DEFINES
  *********************/
+#define DEBUG false
+#define TAG "RA8875"
+
 #define DIV_ROUND_UP(n, d) (((n)+(d)-1)/(d))
 
 #define SPI_CLOCK_SPEED_SLOW_HZ 1000000
@@ -24,34 +28,6 @@
 #define RA8875_MODE_CMD_WRITE   (0x80)
 #define RA8875_MODE_STATUS_READ (0xC0)
 
-#define BYTES_PER_PIXEL (LV_COLOR_DEPTH / 8)
-
-#define HDWR_VAL (LV_HOR_RES_MAX/8 - 1)
-#define VDHR_VAL (LV_VER_RES_MAX - 1)
-
-#define VDIR_MASK (1 << 2)
-#define HDIR_MASK (1 << 3)
-
-#ifndef CONFIG_LV_TFT_DISPLAY_CONTROLLER_RA8875
-    // Use this settings if there is no Kconfig settings defined
-    #define SYSR_VAL (0x00)
-    #define DPCR_VAL (0x00)
-    #define PCSR_VAL (0x00)
-    #define HNDR_VAL (0x00)
-    #define HNDFTR_VAL (0x00)
-    #define HSTR_VAL (0x00)
-    #define HPW (0x00)
-    #define HPWR_VAL (0x00)
-    #define VNDR_VAL (0x00)
-    #define VSTR_VAL (0x00)
-    #define VPW      (0x00)
-    #define VPWR_VAL (0x00)
-    #define CONFIG_LV_DISP_RA8875_PLLDIVM (0x00)
-    #define CONFIG_LV_DISP_RA8875_PLLDIVN (0x00)
-    #define CONFIG_LV_DISP_RA8875_PLLDIVK (0x00)
-
-#else
-
 #if (LV_COLOR_DEPTH == 8)
     #define SYSR_VAL (0x00)
 #elif (LV_COLOR_DEPTH == 16)
@@ -59,6 +35,13 @@
 #else
     #error "Unsupported color depth (LV_COLOR_DEPTH)"
 #endif
+#define BYTES_PER_PIXEL (LV_COLOR_DEPTH / 8)
+
+#define HDWR_VAL (LV_HOR_RES_MAX/8 - 1)
+#define VDHR_VAL (LV_VER_RES_MAX - 1)
+
+#define VDIR_MASK (1 << 2)
+#define HDIR_MASK (1 << 3)
 
 #if ( CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT_INVERTED || CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED )
     #if CONFIG_LV_INVERT_DISPLAY
@@ -109,7 +92,6 @@
 #else
     #define VPWR_VAL (VPW)
 #endif
-#endif // CONFIG_LV_TFT_DISPLAY_CONTROLLER_RA8875
 
 /**********************
  *      TYPEDEFS
@@ -137,9 +119,6 @@ static void ra8875_send_buffer(uint8_t * data, size_t length, bool signal_flush)
 
 void ra8875_init(void)
 {
-#ifndef CONFIG_LV_TFT_DISPLAY_CONTROLLER_RA8875
-    assert(false); // This driver is not properly configured
-#endif
     unsigned int i = 0;
 
     struct {
@@ -167,7 +146,7 @@ void ra8875_init(void)
     };
     #define INIT_CMDS_SIZE (sizeof(init_cmds)/sizeof(init_cmds[0]))
 
-    LV_LOG_INFO("Initializing RA8875...");
+    ESP_LOGI(TAG, "Initializing RA8875...");
 
     // Initialize non-SPI GPIOs
 
@@ -201,7 +180,7 @@ void ra8875_init(void)
         vTaskDelay(1);
     }
     if (i == 0) {
-        LV_LOG_WARN("WARNING: Memory clear timed out; RA8875 may be unresponsive.");
+        ESP_LOGW(TAG, "WARNING: Memory clear timed out; RA8875 may be unresponsive.");
     }
 
     // Enable the display
@@ -210,7 +189,7 @@ void ra8875_init(void)
 
 void ra8875_enable_display(bool enable)
 {
-    LV_LOG_INFO("%s display.", enable ? "Enabling" : "Disabling");
+    ESP_LOGI(TAG, "%s display.", enable ? "Enabling" : "Disabling");
     uint8_t val = enable ? (0x80) : (0x00);
     ra8875_write_cmd(RA8875_REG_PWRR, val);            // Power and Display Control Register (PWRR)
 }
@@ -226,14 +205,18 @@ void ra8875_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
     size_t linelen = (area->x2 - area->x1 + 1);
     uint8_t * buffer = (uint8_t*)color_map;
 
-    LV_LOG_INFO("flush: %d,%d at %d,%d", area->x1, area->x2, area->y1, area->y2 );
+#if DEBUG
+    ESP_LOGI(TAG, "flush: %d,%d at %d,%d", area->x1, area->x2, area->y1, area->y2 );
+#endif
 
     // Get lock
     disp_spi_acquire();
 
     // Set window if needed
     if ((x1 != area->x1) || (x2 != area->x2)) {
-        LV_LOG_INFO("flush: set window (x1,x2): %d,%d -> %d,%d", x1, x2, area->x1, area->x2);
+#if DEBUG
+        ESP_LOGI(TAG, "flush: set window (x1,x2): %d,%d -> %d,%d", x1, x2, area->x1, area->x2);
+#endif
         ra8875_set_window(area->x1, area->x2, 0, LV_VER_RES_MAX-1);
         x1 = area->x1;
         x2 = area->x2;
@@ -241,7 +224,9 @@ void ra8875_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
 
     // Set cursor if needed
     if ((x != area->x1) || (y != area->y1)) {
-        LV_LOG_INFO("flush: set cursor (x,y): %d,%d -> %d,%d", x, y, area->x1, area->y1);
+#if DEBUG
+        ESP_LOGI(TAG, "flush: set cursor (x,y): %d,%d -> %d,%d", x, y, area->x1, area->y1);
+#endif
         ra8875_set_memory_write_cursor(area->x1, area->y1);
         x = area->x1;
     }

lvgl_tft/schmitt.c

@@ -0,0 +1,27 @@
+#include <stdio.h>
+
+#include "schmitt.h"
+#include "disp_spi.h"
+
+#include "esp_log.h"
+
+static const char* TAG = "SCHMITT_DIS";
+
+void schmitt_init(void)
+{
+	disp_spi_acquire();
+	// Do things
+	ESP_LOGI(TAG, "schmitt_init() called");
+	disp_spi_release();
+}
+
+void schmitt_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
+{
+	disp_spi_acquire();
+	// Do things
+	uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
+	disp_spi_send_colors(color_map, size * 4);
+	ESP_LOGI(TAG, "schmitt_flush() called");
+	disp_spi_release();
+	lv_disp_flush_ready(drv);
+}

lvgl_tft/schmitt.h

@@ -0,0 +1,20 @@
+#ifndef SCHMITT_H_
+#define SCHMITT_H_
+
+#include <stdint.h>
+
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+#include "lvgl/lvgl.h"
+#endif
+#include "../lvgl_helpers.h"
+
+#define LV_HOR_RES_MAX 64
+#define LV_VER_RES_MAX 64
+
+void schmitt_init(void);
+
+void schmitt_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
+
+#endif /* SCHMITT_H_ */

lvgl_tft/sh1107.c

@@ -16,6 +16,7 @@
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "SH1107"
 
 /**********************
  *      TYPEDEFS

lvgl_tft/ssd1306.c

@@ -15,13 +15,18 @@
  *********************/
 #include "assert.h"
 
+#include "lvgl_i2c/i2c_manager.h"
+
 #include "ssd1306.h"
-#include "display_port.h"
 
 /*********************
  *      DEFINES
  *********************/
+#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
 #define OLED_HEIGHT                         64
 #define OLED_COLUMNS                        128
@@ -72,6 +77,8 @@
 /**********************
  *  STATIC PROTOTYPES
  **********************/
+static uint8_t send_data(lv_disp_drv_t *disp_drv, void *bytes, size_t bytes_len);
+static uint8_t send_pixels(lv_disp_drv_t *disp_drv, void *color_buffer, size_t buffer_len);
 
 /**********************
  *  STATIC VARIABLES
@@ -87,7 +94,7 @@
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
-void ssd1306_init(lv_disp_drv_t *disp_drv)
+void ssd1306_init(void)
 {
     uint8_t orientation_1 = 0;
     uint8_t orientation_2 = 0;
@@ -99,7 +106,7 @@ void ssd1306_init(lv_disp_drv_t *disp_drv)
     orientation_1 = 0xA0;
     orientation_2 = OLED_CMD_SET_COM_SCAN_MODE_NORMAL;
 #else
-    assert(false); // Invalid configuration of SSD1306 driver
+    #error "Unsupported orientation"
 #endif
 
     uint8_t display_mode = 0;
@@ -122,7 +129,8 @@ void ssd1306_init(lv_disp_drv_t *disp_drv)
         OLED_CMD_DISPLAY_ON
     };
 
-    display_interface_send_cmd(disp_drv, OLED_CONTROL_BYTE_CMD_STREAM, &conf[1], sizeof(conf) - 1);
+    uint8_t err = send_data(NULL, conf, sizeof(conf));
+    assert(0 == err);
 }
 
 void ssd1306_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,
@@ -156,8 +164,10 @@ void ssd1306_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t
         row2,
     };
 
-    display_interface_send_cmd(disp_drv, OLED_CONTROL_BYTE_CMD_STREAM, &conf[1], sizeof(conf) - 1);
-    display_interface_send_data(disp_drv, color_p, OLED_COLUMNS * (1 + row2 - row1));
+    uint8_t err = send_data(disp_drv, conf, sizeof(conf));
+    assert(0 == err);
+    err = send_pixels(disp_drv, color_p, OLED_COLUMNS * (1 + row2 - row1));
+    assert(0 == err);
 
     lv_disp_flush_ready(disp_drv);
 }
@@ -180,7 +190,8 @@ void ssd1306_sleep_in(void)
         OLED_CMD_DISPLAY_OFF
     };
 
-    display_interface_send_cmd(NULL, OLED_CONTROL_BYTE_CMD_STREAM, &conf[1], 1);
+    uint8_t err = send_data(NULL, conf, sizeof(conf));
+    assert(0 == err);
 }
 
 void ssd1306_sleep_out(void)
@@ -190,5 +201,25 @@ void ssd1306_sleep_out(void)
         OLED_CMD_DISPLAY_ON
     };
 
-    display_interface_send_cmd(NULL, OLED_CONTROL_BYTE_CMD_STREAM, &conf[1], 1);
+    uint8_t err = send_data(NULL, conf, sizeof(conf));
+    assert(0 == err);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+static uint8_t send_data(lv_disp_drv_t *disp_drv, void *bytes, size_t bytes_len)
+{
+    (void) disp_drv;
+
+    uint8_t *data = (uint8_t *) bytes;
+
+    return lvgl_i2c_write(OLED_I2C_PORT, OLED_I2C_ADDRESS, data[0], data + 1, bytes_len - 1 );
+}
+
+static uint8_t send_pixels(lv_disp_drv_t *disp_drv, void *color_buffer, size_t buffer_len)
+{
+    (void) disp_drv;
+
+    return lvgl_i2c_write(OLED_I2C_PORT, OLED_I2C_ADDRESS, OLED_CONTROL_BYTE_DATA_STREAM, color_buffer, buffer_len);
 }

lvgl_tft/ssd1306.h

@@ -34,7 +34,7 @@ extern "C" {
 /**********************
  * GLOBAL PROTOTYPES
  **********************/
-void ssd1306_init(lv_disp_drv_t *disp_drv);
+void ssd1306_init(void);
 void ssd1306_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
 void ssd1306_rounder(lv_disp_drv_t * disp_drv, lv_area_t *area);
 void ssd1306_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,

lvgl_tft/st7735s.c

@@ -9,6 +9,7 @@
 #include "st7735s.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
@@ -19,6 +20,7 @@
 /*********************
  *      DEFINES
  *********************/
+ #define TAG "ST7735S"
  #define AXP192_I2C_ADDRESS                    0x34
 
 /**********************
@@ -39,13 +41,10 @@ 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);
-
-#ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
 static void axp192_write_byte(uint8_t addr, uint8_t data);
 static void axp192_init();
 static void axp192_sleep_in();
 static void axp192_sleep_out();
-#endif
 
 /**********************
  *  STATIC VARIABLES
@@ -113,7 +112,7 @@ void st7735s_init(void)
 	vTaskDelay(100 / portTICK_RATE_MS);
 #endif
 
-	LV_LOG_INFO("ST7735S initialization.");
+	ESP_LOGI(TAG, "ST7735S initialization.");
 
 	//Send all the commands
 	uint16_t cmd = 0;
@@ -209,7 +208,7 @@ static void st7735s_set_orientation(uint8_t orientation)
         "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
     };
 
-    LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+    ESP_LOGD(TAG, "Display orientation: %s", orientation_str[orientation]);
 
     /*
         Portrait:  0xC8 = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY | ST77XX_MADCTL_BGR
@@ -218,7 +217,7 @@ static void st7735s_set_orientation(uint8_t orientation)
     */
     uint8_t data[] = {0xC8, 0xC8, 0xA8, 0xA8};
 
-    LV_LOG_INFO("0x36 command value: 0x%02X", data[orientation]);
+    ESP_LOGD(TAG, "0x36 command value: 0x%02X", data[orientation]);
 
     st7735s_send_cmd(ST7735_MADCTL);
     st7735s_send_data((void *) &data[orientation], 1);
@@ -226,33 +225,33 @@ static void st7735s_set_orientation(uint8_t orientation)
 
 #ifdef CONFIG_LV_M5STICKC_HANDLE_AXP192
 
-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);
-    if (ret != ESP_OK) {
-        LV_LOG_ERROR("AXP192 send failed. code: 0x%.2X", ret);
+    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);
+        if (ret != ESP_OK) {
+            ESP_LOGE(TAG, "AXP192 send failed. code: 0x%.2X", ret);
+        }
     }
-}
 
-static void axp192_init()
-{
-    // 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_init()
+    {
+        // information on how to init and use AXP192 ifor M5StickC taken from
+        // 	https://forum.m5stack.com/topic/1025/m5stickc-turn-off-screen-completely
 
-    axp192_write_byte(0x10, 0xFF);			// OLED_VPP Enable
-    axp192_write_byte(0x28, 0xCC);			// Enable LDO2&LDO3, LED&TFT 3.0V
-    axp192_sleep_out();
-    LV_LOG_INFO("AXP192 initialized, power enabled for LDO2 and LDO3");
-}
+        axp192_write_byte(0x10, 0xFF);			// OLED_VPP Enable
+        axp192_write_byte(0x28, 0xCC);			// Enable LDO2&LDO3, LED&TFT 3.0V
+        axp192_sleep_out();
+        ESP_LOGI(TAG, "AXP192 initialized, power enabled for LDO2 and LDO3");
+    }
 
-static void axp192_sleep_in()
-{
-    axp192_write_byte(0x12, 0x4b);
-}
+    static void axp192_sleep_in()
+    {
+        axp192_write_byte(0x12, 0x4b);
+    }
 
-static void axp192_sleep_out()
-{
-    axp192_write_byte(0x12, 0x4d);
-}
+    static void axp192_sleep_out()
+    {
+        axp192_write_byte(0x12, 0x4d);
+    }
 
 #endif

lvgl_tft/st7789.c

@@ -4,15 +4,21 @@
  * Mostly taken from lbthomsen/esp-idf-littlevgl github.
  */
 
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "sdkconfig.h"
+
+#include "esp_log.h"
+
 #include "st7789.h"
 
 #include "disp_spi.h"
-#include "display_port.h"
+#include "driver/gpio.h"
 
 /*********************
  *      DEFINES
  *********************/
-
+#define TAG "st7789"
 /**********************
  *      TYPEDEFS
  **********************/
@@ -27,13 +33,10 @@ typedef struct {
 /**********************
  *  STATIC PROTOTYPES
  **********************/
-static void st7789_set_orientation(lv_disp_drv_t *drv, uint8_t orientation);
+static void st7789_set_orientation(uint8_t orientation);
 
-static void st7789_send_cmd(lv_disp_drv_t * drv, uint8_t cmd);
-static void st7789_send_data(lv_disp_drv_t * drv, void *data, uint16_t length);
-static void st7789_send_color(lv_disp_drv_t * drv, void *data, uint16_t length);
+static void st7789_send_color(void *data, size_t length);
 
-static void st7789_reset(lv_disp_drv_t * drv);
 /**********************
  *  STATIC VARIABLES
  **********************/
@@ -45,7 +48,7 @@ static void st7789_reset(lv_disp_drv_t * drv);
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
-void st7789_init(lv_disp_drv_t *drv)
+void st7789_init(void)
 {
     lcd_init_cmd_t st7789_init_cmds[] = {
         {0xCF, {0x00, 0x83, 0X30}, 3},
@@ -82,26 +85,44 @@ void st7789_init(lv_disp_drv_t *drv)
         {0, {0}, 0xff},
     };
 
-    st7789_reset(drv);
+    //Initialize non-SPI GPIOs
+    gpio_pad_select_gpio(ST7789_DC);
+    gpio_set_direction(ST7789_DC, GPIO_MODE_OUTPUT);
+
+#if !defined(ST7789_SOFT_RST)
+    gpio_pad_select_gpio(ST7789_RST);
+    gpio_set_direction(ST7789_RST, GPIO_MODE_OUTPUT);
+#endif
+
+    //Reset the display
+#if !defined(ST7789_SOFT_RST)
+    gpio_set_level(ST7789_RST, 0);
+    vTaskDelay(100 / portTICK_RATE_MS);
+    gpio_set_level(ST7789_RST, 1);
+    vTaskDelay(100 / portTICK_RATE_MS);
+#else
+    st7789_send_cmd(ST7789_SWRESET);
+#endif
+
+    printf("ST7789 initialization.\n");
 
     //Send all the commands
     uint16_t cmd = 0;
     while (st7789_init_cmds[cmd].databytes!=0xff) {
-        st7789_send_cmd(drv, st7789_init_cmds[cmd].cmd);
-        st7789_send_data(drv, st7789_init_cmds[cmd].data, st7789_init_cmds[cmd].databytes&0x1F);
+        st7789_send_cmd(st7789_init_cmds[cmd].cmd);
+        st7789_send_data(st7789_init_cmds[cmd].data, st7789_init_cmds[cmd].databytes&0x1F);
         if (st7789_init_cmds[cmd].databytes & 0x80) {
-            display_port_delay(drv, 100);
+                vTaskDelay(100 / portTICK_RATE_MS);
         }
         cmd++;
     }
 
-    /* FIXME We're setting up the initial orientation in the cmd array */
-    st7789_set_orientation(drv, ST7789_INITIAL_ORIENTATION);
+    st7789_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
 }
 
-/* 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. */
+/* The ST7789 display controller can drive up to 320*240 displays, when using a 240*240 or 240*135
+ * 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. */
 void st7789_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
 {
     uint8_t data[4] = {0};
@@ -110,7 +131,6 @@ void st7789_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * colo
     uint16_t offsetx2 = area->x2;
     uint16_t offsety1 = area->y1;
     uint16_t offsety2 = area->y2;
-    uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
 
 #if (CONFIG_LV_TFT_DISPLAY_OFFSETS)
     offsetx1 += CONFIG_LV_TFT_DISPLAY_X_OFFSET;
@@ -119,76 +139,90 @@ 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)
-    offsetx1 += 80;
-    offsetx2 += 80;
-#elif (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
-    offsety1 += 80;
-    offsety2 += 80;
-#endif
+    #if (CONFIG_LV_DISPLAY_ORIENTATION_PORTRAIT)
+        offsetx1 += 80;
+        offsetx2 += 80;
+    #elif (CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE_INVERTED)
+        offsety1 += 80;
+        offsety2 += 80;
+    #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*/
-    st7789_send_cmd(drv, ST7789_CASET);
+    st7789_send_cmd(ST7789_CASET);
     data[0] = (offsetx1 >> 8) & 0xFF;
     data[1] = offsetx1 & 0xFF;
     data[2] = (offsetx2 >> 8) & 0xFF;
     data[3] = offsetx2 & 0xFF;
-    st7789_send_data(drv, data, 4);
+    st7789_send_data(data, 4);
 
     /*Page addresses*/
-    st7789_send_cmd(drv, ST7789_RASET);
+    st7789_send_cmd(ST7789_RASET);
     data[0] = (offsety1 >> 8) & 0xFF;
     data[1] = offsety1 & 0xFF;
     data[2] = (offsety2 >> 8) & 0xFF;
     data[3] = offsety2 & 0xFF;
-    st7789_send_data(drv, data, 4);
+    st7789_send_data(data, 4);
 
     /*Memory write*/
-    st7789_send_cmd(drv, ST7789_RAMWR);
-    st7789_send_color(drv, (void*) color_map, size * 2);
+    st7789_send_cmd(ST7789_RAMWR);
+
+    size_t size = (size_t)lv_area_get_width(area) * (size_t)lv_area_get_height(area);
+
+    st7789_send_color((void*)color_map, size * 2);
+
 }
 
 /**********************
  *   STATIC FUNCTIONS
  **********************/
-static void st7789_send_cmd(lv_disp_drv_t *drv, uint8_t cmd)
+void st7789_send_cmd(uint8_t cmd)
 {
     disp_wait_for_pending_transactions();
-    display_port_gpio_dc(drv, 0);
+    gpio_set_level(ST7789_DC, 0);
     disp_spi_send_data(&cmd, 1);
 }
 
-static void st7789_send_data(lv_disp_drv_t *drv, void * data, uint16_t length)
+void st7789_send_data(void * data, uint16_t length)
 {
     disp_wait_for_pending_transactions();
-    display_port_gpio_dc(drv, 1);
+    gpio_set_level(ST7789_DC, 1);
     disp_spi_send_data(data, length);
 }
 
-static void st7789_send_color(lv_disp_drv_t *drv, void * data, uint16_t length)
+static void st7789_send_color(void * data, size_t length)
 {
     disp_wait_for_pending_transactions();
-    display_port_gpio_dc(drv, 1);
+    gpio_set_level(ST7789_DC, 1);
     disp_spi_send_colors(data, length);
 }
 
-/* Reset the display, if we don't have a reset pin we use software reset */
-static void st7789_reset(lv_disp_drv_t *drv)
+static void st7789_set_orientation(uint8_t orientation)
 {
-#if !defined(ST7789_SOFT_RST)
-    display_port_gpio_rst(drv, 0);
-    display_port_delay(drv, 100);
-    display_port_gpio_rst(drv, 1);
-    display_port_delay(drv, 100);
-#else
-    st7789_send_cmd(drv, ST7789_SWRESET);
-    display_port_delay(drv, 5);
-#endif
-}
+    // ESP_ASSERT(orientation < 4);
+
+    const char *orientation_str[] = {
+        "PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
+    };
+
+    ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
-static void st7789_set_orientation(lv_disp_drv_t *drv, uint8_t orientation)
-{
     uint8_t data[] =
     {
 #if CONFIG_LV_PREDEFINED_DISPLAY_TTGO
@@ -198,13 +232,8 @@ static void st7789_set_orientation(lv_disp_drv_t *drv, uint8_t orientation)
 #endif
     };
 
-    st7789_send_cmd(drv, ST7789_MADCTL);
-    st7789_send_data(drv, (void *) &data[orientation], 1);
-}
+    ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
 
-/* Display update callback, we could update the orientation in here
- * NOTE Available only for LVGL v8 */
-void st7789_update_cb(lv_disp_drv_t *drv)
-{
-    (void) drv;
+    st7789_send_cmd(ST7789_MADCTL);
+    st7789_send_data((void *) &data[orientation], 1);
 }

lvgl_tft/st7789.h

@@ -17,11 +17,22 @@ extern "C"
 #else
 #include "lvgl/lvgl.h"
 #endif
+#include "../lvgl_helpers.h"
 
-/* For SPI transfers */
-#include "lvgl_helpers.h"
-/* For ST7789 particular configurations */
-#include "display_config.h"
+#include "sdkconfig.h"
+
+#define ST7789_DC       CONFIG_LV_DISP_PIN_DC
+#define ST7789_RST      CONFIG_LV_DISP_PIN_RST
+
+#if CONFIG_LV_DISP_USE_RST
+  #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
 
 /* ST7789 commands */
 #define ST7789_NOP      0x00
@@ -99,28 +110,11 @@ extern "C"
 #define ST7789_NVMSET       0xFC    // NVM setting
 #define ST7789_PROMACT      0xFE    // Program action
 
-/**
- * Initialize the ST7789 display controller with default configuration
- *
- * @param drv Pointer to lv_disp_drv_t being used
- */
-void st7789_init(lv_disp_drv_t *drv);
-
-/**
- * Send buffer content to display  
- *
- * @param drv Pointer to lv_disp_drv_t being used
- * @param area Pointer to area to be sent
- * @param color_map Pointer to color map
- */
+void st7789_init(void);
 void st7789_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map);
 
-/**
- * Display updated callback
- *
- * @param drv Pointer to lv_disp_drv_t being used
- */
-void st7789_update_cb(lv_disp_drv_t *drv);
+void st7789_send_cmd(uint8_t cmd);
+void st7789_send_data(void *data, uint16_t length);
 
 #ifdef __cplusplus
 } /* extern "C" */

lvgl_tft/st7796s.c

@@ -9,12 +9,14 @@
 #include "st7796s.h"
 #include "disp_spi.h"
 #include "driver/gpio.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
 /*********************
  *      DEFINES
  *********************/
+#define TAG "ST7796S"
 
 /**********************
  *      TYPEDEFS
@@ -94,7 +96,7 @@ void st7796s_init(void)
 	vTaskDelay(100 / portTICK_RATE_MS);
 #endif
 
-	LV_LOG_INFO("Initialization.");
+	ESP_LOGI(TAG, "Initialization.");
 
 	//Send all the commands
 	uint16_t cmd = 0;
@@ -187,24 +189,24 @@ static void st7796s_send_color(void *data, uint16_t length)
 
 static void st7796s_set_orientation(uint8_t orientation)
 {
-	assert(orientation < 4);
+	// ESP_ASSERT(orientation < 4);
 
 	const char *orientation_str[] = {
 		"PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"};
 
-	LV_LOG_INFO("Display orientation: %s", orientation_str[orientation]);
+	ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
 
 #if defined CONFIG_LV_PREDEFINED_DISPLAY_M5STACK
-	const uint8_t data[] = {0x68, 0x68, 0x08, 0x08};
+	uint8_t data[] = {0x68, 0x68, 0x08, 0x08};
 #elif defined(CONFIG_LV_PREDEFINED_DISPLAY_WROVER4)
-	const uint8_t data[] = {0x4C, 0x88, 0x28, 0xE8};
+	uint8_t data[] = {0x4C, 0x88, 0x28, 0xE8};
 #elif defined(CONFIG_LV_PREDEFINED_DISPLAY_WT32_SC01)
-	const uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
-#else
-	const uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
+	uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
+#elif defined(CONFIG_LV_PREDEFINED_DISPLAY_NONE)
+	uint8_t data[] = {0x48, 0x88, 0x28, 0xE8};
 #endif
 
-	LV_LOG_INFO("0x36 command value: 0x%02X", data[orientation]);
+	ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
 
 	st7796s_send_cmd(0x36);
 	st7796s_send_data((void *)&data[orientation], 1);

lvgl_tft/uc8151d.c

@@ -29,19 +29,18 @@
 #include <freertos/task.h>
 #include <freertos/event_groups.h>
 #include <driver/gpio.h>
+#include <esp_log.h>
 
 #include "disp_spi.h"
 #include "disp_driver.h"
 #include "uc8151d.h"
 
+#define TAG "lv_uc8151d"
+
 #define PIN_DC              CONFIG_LV_DISP_PIN_DC
 #define PIN_DC_BIT          ((1ULL << (uint8_t)(CONFIG_LV_DISP_PIN_DC)))
-
-#if defined CONFIG_LV_DISP_PIN_RST
 #define PIN_RST             CONFIG_LV_DISP_PIN_RST
 #define PIN_RST_BIT         ((1ULL << (uint8_t)(CONFIG_LV_DISP_PIN_RST)))
-#endif
-
 #define PIN_BUSY            CONFIG_LV_DISP_PIN_BUSY
 #define PIN_BUSY_BIT        ((1ULL << (uint8_t)(CONFIG_LV_DISP_PIN_BUSY)))
 #define EVT_BUSY            (1UL << 0UL)
@@ -103,7 +102,7 @@ static void uc8151d_spi_send_fb(uint8_t *data, size_t len)
 
 static void uc8151d_spi_send_seq(const uc8151d_seq_t *seq, size_t len)
 {
-    LV_LOG_INFO("Writing cmd/data sequence, count %u", len);
+    ESP_LOGD(TAG, "Writing cmd/data sequence, count %u", len);
 
     if (!seq || len < 1) return;
     for (size_t cmd_idx = 0; cmd_idx < len; cmd_idx++) {
@@ -140,13 +139,14 @@ static void uc8151d_sleep()
     uc8151d_spi_send_data_byte(0xa5);
 }
 
-static void uc8151d_reset(void);
-
 static void uc8151d_panel_init()
 {
     // Hardware reset for 3 times - not sure why but it's from official demo code
     for (uint8_t cnt = 0; cnt < 3; cnt++) {
-        uc8151d_reset();
+        gpio_set_level(PIN_RST, 0);
+        vTaskDelay(pdMS_TO_TICKS(10)); // At least 10ms, leave 20ms for now just in case...
+        gpio_set_level(PIN_RST, 1);
+        vTaskDelay(pdMS_TO_TICKS(10));
     }
 
     // Power up
@@ -198,14 +198,14 @@ void uc8151d_lv_fb_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *
 {
     size_t len = ((area->x2 - area->x1 + 1) * (area->y2 - area->y1 + 1)) / 8;
 
-    LV_LOG_INFO("x1: 0x%x, x2: 0x%x, y1: 0x%x, y2: 0x%x", area->x1, area->x2, area->y1, area->y2);
-    LV_LOG_INFO("Writing LVGL fb with len: %u", len);
+    ESP_LOGD(TAG, "x1: 0x%x, x2: 0x%x, y1: 0x%x, y2: 0x%x", area->x1, area->x2, area->y1, area->y2);
+    ESP_LOGD(TAG, "Writing LVGL fb with len: %u", len);
 
     uint8_t *buf = (uint8_t *) color_map;
     uc8151d_full_update(buf);
 
     lv_disp_flush_ready(drv);
-    LV_LOG_INFO("Ready");
+    ESP_LOGD(TAG, "Ready");
 }
 
 void uc8151d_lv_set_fb_cb(struct _disp_drv_t *disp_drv, uint8_t *buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
@@ -217,7 +217,7 @@ void uc8151d_lv_set_fb_cb(struct _disp_drv_t *disp_drv, uint8_t *buf, lv_coord_t
     if (color.full) {
         BIT_SET(buf[byte_index], 7 - bit_index);
     } else {
-        LV_LOG_INFO("Clear at x: %u, y: %u", x, y);
+        ESP_LOGD(TAG, "Clear at x: %u, y: %u", x, y);
         BIT_CLEAR(buf[byte_index], 7 - bit_index);
     }
 }
@@ -236,10 +236,20 @@ void uc8151d_init()
     // Initialise event group
     uc8151d_evts = xEventGroupCreate();
     if (!uc8151d_evts) {
-        LV_LOG_ERROR("Failed when initialising event group!");
+        ESP_LOGE(TAG, "Failed when initialising event group!");
         return;
     }
 
+    // Setup output pins, output (PP)
+    gpio_config_t out_io_conf = {
+            .intr_type = GPIO_INTR_DISABLE,
+            .mode = GPIO_MODE_OUTPUT,
+            .pin_bit_mask = PIN_DC_BIT | PIN_RST_BIT,
+            .pull_down_en = 0,
+            .pull_up_en = 0,
+    };
+    ESP_ERROR_CHECK(gpio_config(&out_io_conf));
+
     // Setup input pin, pull-up, input
     gpio_config_t in_io_conf = {
             .intr_type = GPIO_INTR_POSEDGE,
@@ -252,18 +262,7 @@ void uc8151d_init()
     gpio_install_isr_service(0);
     gpio_isr_handler_add(PIN_BUSY, uc8151d_busy_intr, (void *) PIN_BUSY);
 
-    LV_LOG_INFO("IO init finished");
+    ESP_LOGI(TAG, "IO init finished");
     uc8151d_panel_init();
-    LV_LOG_INFO("Panel initialised");
-}
-
-static void uc8151d_reset(void)
-{
-#if defined CONFIG_LV_DISP_USE_RST
-    gpio_set_level(PIN_RST, 0);
-    // At least 10ms, leave 20ms for now just in case...
-    vTaskDelay(pdMS_TO_TICKS(20));
-    gpio_set_level(PIN_RST, 1);
-    vTaskDelay(pdMS_TO_TICKS(10));
-#endif
+    ESP_LOGI(TAG, "Panel initialised");
 }

lvgl_touch/Kconfig

@@ -1,28 +1,28 @@
 menu "LVGL Touch controller"
 
     config LV_TOUCH_CONTROLLER
-	int
-	default 0 if LV_TOUCH_CONTROLLER_NONE
-	default 1 if LV_TOUCH_CONTROLLER_XPT2046
-	default 2 if LV_TOUCH_CONTROLLER_FT6X06
-	default 3 if LV_TOUCH_CONTROLLER_STMPE610
+        int
+        default 0 if LV_TOUCH_CONTROLLER_NONE
+        default 1 if LV_TOUCH_CONTROLLER_XPT2046
+        default 2 if LV_TOUCH_CONTROLLER_FT6X06
+        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
 
     choice
-	prompt "Select a touch panel controller model."
-	default LV_TOUCH_CONTROLLER_NONE
-	help
-	    Select the controller for your touch panel.
+        prompt "Select a touch panel controller model."
+        default LV_TOUCH_CONTROLLER_NONE
+        help
+            Select the controller for your touch panel.
 
-	config LV_TOUCH_CONTROLLER_NONE
-	    bool "None"
-	config LV_TOUCH_CONTROLLER_XPT2046
+        config LV_TOUCH_CONTROLLER_NONE
+            bool "None"
+        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
             bool "FT6X06"
         config LV_TOUCH_CONTROLLER_STMPE610
@@ -61,23 +61,20 @@ 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 Controller SPI Bus."
         depends on LV_TOUCH_DRIVER_PROTOCOL_SPI
 
-        default LV_TOUCH_CONTROLLER_SPI_VSPI if !IDF_TARGET_ESP32S2
-        default LV_TOUCH_CONTROLLER_SPI_FSPI if IDF_TARGET_ESP32S2
+        default LV_TOUCH_CONTROLLER_SPI2_HOST
         help
-            Select the SPI Bus the TFT Display is attached to.
+            Select the SPI Bus the touch controller is attached to.
 
-        config LV_TOUCH_CONTROLLER_SPI_HSPI
-            bool "HSPI"
-        config LV_TOUCH_CONTROLLER_SPI_VSPI
-            bool "VSPI" if !IDF_TARGET_ESP32S2
-        config LV_TOUCH_CONTROLLER_SPI_FSPI
-            bool "FSPI" if IDF_TARGET_ESP32S2
+        config LV_TOUCH_CONTROLLER_SPI2_HOST
+            bool "SPI2_HOST"
+        config LV_TOUCH_CONTROLLER_SPI3_HOST
+            bool "SPI3_HOST"
         endchoice
 
     menu "Touchpanel (XPT2046) Pin Assignments"
@@ -86,7 +83,7 @@ menu "LVGL Touch controller"
         config LV_TOUCH_SPI_MISO
             int
             prompt "GPIO for MISO (Master In Slave Out)"
-            
+
             default 35 if LV_PREDEFINED_PINS_38V1
             default 19
             help
@@ -103,7 +100,7 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_SPI_CLK
             int "GPIO for CLK (SCK / Serial Clock)"
-            
+
             default 26 if LV_PREDEFINED_PINS_38V1
             default 18
             help
@@ -119,7 +116,7 @@ menu "LVGL Touch controller"
 
         config LV_TOUCH_PIN_IRQ
             int "GPIO for IRQ (Interrupt Request)"
-	    
+
             default 27 if LV_PREDEFINED_PINS_38V4
             default 25
             help
@@ -153,10 +150,10 @@ menu "LVGL Touch controller"
             default 4095 if LV_PREDEFINED_PINS_38V4
             default 1900
 
-		config LV_TOUCH_XY_SWAP
-        	bool
-        	prompt "Swap XY."
-        	default y
+        config LV_TOUCH_XY_SWAP
+            bool
+            prompt "Swap XY."
+            default y
 
         config LV_TOUCH_INVERT_X
             bool
@@ -216,7 +213,7 @@ menu "LVGL Touch controller"
         config LV_TOUCH_SPI_MISO
             int
             prompt "GPIO for MISO (Master In Slave Out)"
-            
+
             default 35 if LV_PREDEFINED_PINS_38V1
             default 19 if LV_PREDEFINED_DISPLAY_ADA_FEATHERWING
             default 19
@@ -278,9 +275,9 @@ menu "LVGL Touch controller"
             default 3800
 
         config LV_TOUCH_XY_SWAP
-        	bool
-        	prompt "Swap XY."
-        	default n
+            bool
+            prompt "Swap XY."
+            default n
 
         config LV_TOUCH_INVERT_X
             bool
@@ -379,25 +376,25 @@ 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
@@ -418,13 +415,13 @@ 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
@@ -447,10 +444,10 @@ menu "LVGL Touch controller"
     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_SWAPXY
+        bool
+        prompt "Swap X with Y coordinate."
+        default y
 
         config LV_GT911_INVERT_X
             bool
@@ -472,14 +469,14 @@ menu "LVGL Touch controller"
         config LV_I2C_TOUCH_PORT_0
             bool
             prompt "I2C port 0"
-            help 
+            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 
+            help
                 I2C is shared peripheral managed by I2C Manager. In order to configure I2C Manager (pinout, etc.) see menu
                 Component config->I2C Port Settings.
 

lvgl_touch/adcraw.c

@@ -12,6 +12,7 @@
 
 #if CONFIG_LV_TOUCH_CONTROLLER_ADCRAW
 
+#define TAG "ADCRAW"
 #define CALIBRATIONINSET 1 // range 0 <= CALIBRATIONINSET <= 40
 #define SAMPLE_CALIBRATION_POINTS 4
 // use this scale factor to avoid working in floating point numbers

lvgl_touch/ft6x36.c

@@ -18,24 +18,22 @@
 * SOFTWARE.
 */
 
+#include <esp_log.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"
 
 #define TAG "FT6X36"
 #define FT6X36_TOUCH_QUEUE_ELEMENTS 1
 
-static ft6x36_status_t ft6x36_status;
-/* Set during initialization */
-static uint8_t current_dev_addr;
-/* -1 coordinates to designate it was never touched */
-static ft6x36_touch_t touch_inputs = { -1, -1, LV_INDEV_STATE_REL };
 
+static ft6x36_status_t ft6x36_status;
+static 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
@@ -51,13 +49,13 @@ static esp_err_t ft6x06_i2c_read8(uint8_t slave_addr, uint8_t register_addr, uin
   */
 uint8_t ft6x36_get_gesture_id() {
     if (!ft6x36_status.inited) {
-        LV_LOG_ERROR("Init first!");
+        ESP_LOGE(TAG, "Init first!");
         return 0x00;
     }
     uint8_t data_buf;
     esp_err_t ret;
     if ((ret = ft6x06_i2c_read8(current_dev_addr, FT6X36_GEST_ID_REG, &data_buf) != ESP_OK))
-        LV_LOG_ERROR("Error reading from device: %s", esp_err_to_name(ret));
+        ESP_LOGE(TAG, "Error reading from device: %s", esp_err_to_name(ret));
     return data_buf;
 }
 
@@ -72,29 +70,29 @@ void ft6x06_init(uint16_t dev_addr) {
     current_dev_addr = dev_addr;
     uint8_t data_buf;
     esp_err_t ret;
-    LV_LOG_INFO("Found touch panel controller");
+    ESP_LOGI(TAG, "Found touch panel controller");
     if ((ret = ft6x06_i2c_read8(dev_addr, FT6X36_PANEL_ID_REG, &data_buf) != ESP_OK))
-        LV_LOG_ERROR("Error reading from device: %s",
+        ESP_LOGE(TAG, "Error reading from device: %s",
                  esp_err_to_name(ret));    // Only show error the first time
-    LV_LOG_INFO("\tDevice ID: 0x%02x", data_buf);
+    ESP_LOGI(TAG, "\tDevice ID: 0x%02x", data_buf);
 
     ft6x06_i2c_read8(dev_addr, FT6X36_CHIPSELECT_REG, &data_buf);
-    LV_LOG_INFO("\tChip ID: 0x%02x", data_buf);
+    ESP_LOGI(TAG, "\tChip ID: 0x%02x", data_buf);
 
     ft6x06_i2c_read8(dev_addr, FT6X36_DEV_MODE_REG, &data_buf);
-    LV_LOG_INFO("\tDevice mode: 0x%02x", data_buf);
+    ESP_LOGI(TAG, "\tDevice mode: 0x%02x", data_buf);
 
     ft6x06_i2c_read8(dev_addr, FT6X36_FIRMWARE_ID_REG, &data_buf);
-    LV_LOG_INFO("\tFirmware ID: 0x%02x", data_buf);
+    ESP_LOGI(TAG, "\tFirmware ID: 0x%02x", data_buf);
 
     ft6x06_i2c_read8(dev_addr, FT6X36_RELEASECODE_REG, &data_buf);
-    LV_LOG_INFO("\tRelease code: 0x%02x", 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 )
     {
-        LV_LOG_ERROR("\tError creating touch input FreeRTOS queue" );
+        ESP_LOGE( TAG, "\tError creating touch input FreeRTOS queue" );
         return;
     }
     xQueueSend( ft6x36_touch_queue_handle, &touch_inputs, 0 );
@@ -109,14 +107,14 @@ void ft6x06_init(uint16_t dev_addr) {
   */
 bool ft6x36_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
     if (!ft6x36_status.inited) {
-        LV_LOG_ERROR("Init first!");
+        ESP_LOGE(TAG, "Init first!");
         return 0x00;
     }
     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);
     if (ret != ESP_OK) {
-        LV_LOG_ERROR("Error talking to touch IC: %s", esp_err_to_name(ret));
+        ESP_LOGE(TAG, "Error talking to touch IC: %s", esp_err_to_name(ret));
     }
     uint8_t touch_pnt_cnt = data_buf[0];  // Number of detected touch points
 
@@ -152,7 +150,7 @@ bool ft6x36_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
     data->point.x = touch_inputs.last_x;
     data->point.y = touch_inputs.last_y;
     data->state = touch_inputs.current_state;
-    LV_LOG_INFO("X=%u Y=%u", data->point.x, data->point.y);
+    ESP_LOGD(TAG, "X=%u Y=%u", data->point.x, data->point.y);
 
 #if CONFIG_LV_FT6X36_COORDINATES_QUEUE
     xQueueOverwrite( ft6x36_touch_queue_handle, &touch_inputs );

lvgl_touch/gt911.c

@@ -18,6 +18,7 @@
 * SOFTWARE.
 */
 
+#include <esp_log.h>
 #ifdef LV_LVGL_H_INCLUDE_SIMPLE
 #include <lvgl.h>
 #else
@@ -27,6 +28,8 @@
 
 #include "lvgl_i2c/i2c_manager.h"
 
+#define TAG "GT911"
+
 gt911_status_t gt911_status;
 
 //TODO: handle multibyte read and refactor to just one read transaction
@@ -50,9 +53,9 @@ void gt911_init(uint8_t dev_addr) {
         uint8_t data_buf;
         esp_err_t ret;
 
-        LV_LOG_INFO("Checking for GT911 Touch Controller");
+        ESP_LOGI(TAG, "Checking for GT911 Touch Controller");
         if ((ret = gt911_i2c_read(dev_addr, GT911_PRODUCT_ID1, &data_buf, 1) != ESP_OK)) {
-            LV_LOG_ERROR("Error reading from device: %s",
+            ESP_LOGE(TAG, "Error reading from device: %s",
                         esp_err_to_name(ret));    // Only show error the first time
             return;
         }
@@ -61,22 +64,22 @@ void gt911_init(uint8_t dev_addr) {
         for (int i = 0; i < GT911_PRODUCT_ID_LEN; i++) {
             gt911_i2c_read(dev_addr, (GT911_PRODUCT_ID1 + i), (uint8_t *)&(gt911_status.product_id[i]), 1);
         }
-        LV_LOG_INFO("\tProduct ID: %s", gt911_status.product_id);
+        ESP_LOGI(TAG, "\tProduct ID: %s", gt911_status.product_id);
 
         gt911_i2c_read(dev_addr, GT911_VENDOR_ID, &data_buf, 1);
-        LV_LOG_INFO("\tVendor ID: 0x%02x", data_buf);
+        ESP_LOGI(TAG, "\tVendor ID: 0x%02x", data_buf);
 
         gt911_i2c_read(dev_addr, GT911_X_COORD_RES_L, &data_buf, 1);
         gt911_status.max_x_coord = data_buf;
         gt911_i2c_read(dev_addr, GT911_X_COORD_RES_H, &data_buf, 1);
         gt911_status.max_x_coord |= ((uint16_t)data_buf << 8);
-        LV_LOG_INFO("\tX Resolution: %d", gt911_status.max_x_coord);
+        ESP_LOGI(TAG, "\tX Resolution: %d", gt911_status.max_x_coord);
 
         gt911_i2c_read(dev_addr, GT911_Y_COORD_RES_L, &data_buf, 1);
         gt911_status.max_y_coord = data_buf;
         gt911_i2c_read(dev_addr, GT911_Y_COORD_RES_H, &data_buf, 1);
         gt911_status.max_y_coord |= ((uint16_t)data_buf << 8);
-        LV_LOG_INFO("\tY Resolution: %d", gt911_status.max_y_coord);
+        ESP_LOGI(TAG, "\tY Resolution: %d", gt911_status.max_y_coord);
         gt911_status.inited = true;
     }
 }
@@ -95,7 +98,7 @@ bool gt911_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
     uint8_t status_reg;
 
     gt911_i2c_read(gt911_status.i2c_dev_addr, GT911_STATUS_REG, &status_reg, 1);
-//    LV_LOG_INFO("\tstatus: 0x%02x", status_reg);
+//    ESP_LOGI(TAG, "\tstatus: 0x%02x", status_reg);
     touch_pnt_cnt = status_reg & 0x0F;
     if ((status_reg & 0x80) || (touch_pnt_cnt < 6)) {
         //Reset Status Reg Value
@@ -109,7 +112,7 @@ bool gt911_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
     }
 
 //    gt911_i2c_read(gt911_status.i2c_dev_addr, GT911_TRACK_ID1, &data_buf, 1);
-//    LV_LOG_INFO("\ttrack_id: %d", data_buf);
+//    ESP_LOGI(TAG, "\ttrack_id: %d", data_buf);
 
     gt911_i2c_read(gt911_status.i2c_dev_addr, GT911_PT1_X_COORD_L, &data_buf, 1);
     last_x = data_buf;
@@ -135,7 +138,7 @@ bool gt911_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
     data->point.x = last_x;
     data->point.y = last_y;
     data->state = LV_INDEV_STATE_PR;
-    LV_LOG_INFO("X=%u Y=%u", data->point.x, data->point.y);
-    LV_LOG_INFO("X=%u Y=%u", data->point.x, data->point.y);
+    ESP_LOGI(TAG, "X=%u Y=%u", data->point.x, data->point.y);
+    ESP_LOGV(TAG, "X=%u Y=%u", data->point.x, data->point.y);
     return false;
 }

lvgl_touch/ra8875_touch.c

@@ -5,6 +5,7 @@
 /*********************
  *      INCLUDES
  *********************/
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
@@ -22,6 +23,7 @@
  *      DEFINES
  *********************/
 #define DEBUG false
+#define TAG "RA8875-Touch"
 
 #define DIV_ROUND_UP(n, d) (((n)+(d)-1)/(d))
 
@@ -81,7 +83,7 @@ void ra8875_touch_init(void)
     };
     #define INIT_CMDS_SIZE (sizeof(init_cmds)/sizeof(init_cmds[0]))
 
-    LV_LOG_INFO("Initializing RA8875 Touch...");
+    ESP_LOGI(TAG, "Initializing RA8875 Touch...");
 
     // Send all the commands
     for (unsigned int i = 0; i < INIT_CMDS_SIZE; i++) {
@@ -92,7 +94,7 @@ void ra8875_touch_init(void)
 
 void ra8875_touch_enable(bool enable)
 {
-    LV_LOG_INFO("%s touch.", enable ? "Enabling" : "Disabling");
+    ESP_LOGI(TAG, "%s touch.", enable ? "Enabling" : "Disabling");
     uint8_t val = enable ? (0x80 | TPCR0_VAL) : (TPCR0_VAL);
     ra8875_write_cmd(RA8875_REG_TPCR0, val);
 }
@@ -120,7 +122,7 @@ bool ra8875_touch_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
         y = (y << 2) | ((xy >> 2) & 0x03);
 
 #if DEBUG
-        LV_LOG_INFO("Touch Poll Raw: %d,%d", x, y);
+        ESP_LOGI(TAG, "Touch Poll Raw: %d,%d", x, y);
 #endif
 
         // Convert to display coordinates
@@ -134,7 +136,7 @@ bool ra8875_touch_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
     data->point.y = y;
 
 #if DEBUG
-        LV_LOG_INFO("Touch Poll - Event: %d; %d,%d", data->state, data->point.x, data->point.y);
+        ESP_LOGI(TAG, "Touch Poll - Event: %d; %d,%d", data->state, data->point.x, data->point.y);
 #endif
 
     return false;

lvgl_touch/stmpe610.c

@@ -7,6 +7,7 @@
  *********************/
 #include "stmpe610.h"
 #include "esp_system.h"
+#include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "driver/gpio.h"
@@ -16,6 +17,8 @@
 /*********************
  *      DEFINES
  *********************/
+#define TAG        "STMPE610"
+
 
 /**********************
  *      TYPEDEFS
@@ -52,11 +55,11 @@ void stmpe610_init(void)
 	uint8_t u8;
 	uint16_t u16;
 	
-	LV_LOG_INFO("Initialization.");
+	ESP_LOGI(TAG, "Initialization.");
 
 	// Get the initial SPI configuration
 	//u8 = read_8bit_reg(STMPE_SPI_CFG);
-	//LV_LOG_INFO("SPI_CFG = 0x%x", u8);
+	//ESP_LOGI(TAG, "SPI_CFG = 0x%x", u8);
 	
     // Attempt a software reset
 	write_8bit_reg(STMPE_SYS_CTRL1, STMPE_SYS_CTRL1_RESET);
@@ -66,12 +69,12 @@ void stmpe610_init(void)
 	u8 = read_8bit_reg(STMPE_SPI_CFG);
 	write_8bit_reg(STMPE_SPI_CFG, u8 | STMPE_SPI_CFG_AA);
 	u8 = read_8bit_reg(STMPE_SPI_CFG);
-	LV_LOG_INFO("SPI_CFG = 0x%x", u8);
+	ESP_LOGI(TAG, "SPI_CFG = 0x%x", u8);
 	
 	// Verify SPI communication
 	u16 = read_16bit_reg(STMPE_CHIP_ID);
 	if (u16 != 0x811) {
-		LV_LOG_ERROR("Incorrect version: 0x%x", u16);
+		ESP_LOGE(TAG, "Incorrect version: 0x%x", u16);
 	}
 
 	write_8bit_reg(STMPE_SYS_CTRL2, 0x00); // Disable clocks
@@ -127,12 +130,12 @@ bool stmpe610_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
 		}
 		
 		if (c > 0) {
-			//LV_LOG_INFO("%d: %d %d %d", c, x, y, z);
+			//ESP_LOGI(TAG, "%d: %d %d %d", c, x, y, z);
 		
 			adjust_data(&x, &y);
     		last_x = x;
     		last_y = y;
-    		//LV_LOG_INFO("  ==> %d %d", x, y);
+    		//ESP_LOGI(TAG, "  ==> %d %d", x, y);
     	}
     	
     	z = read_8bit_reg(STMPE_INT_STA);  // Clear interrupts
@@ -141,7 +144,7 @@ bool stmpe610_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
     		// Clear the FIFO if we discover an overflow
     		write_8bit_reg(STMPE_FIFO_STA, STMPE_FIFO_STA_RESET);
 			write_8bit_reg(STMPE_FIFO_STA, 0); // unreset
-			LV_LOG_ERROR("Fifo overflow");
+			ESP_LOGE(TAG, "Fifo overflow");
 		}
     }
     

lvgl_touch/xpt2046.c

@@ -8,6 +8,7 @@
  *********************/
 #include "xpt2046.h"
 #include "esp_system.h"
+#include "esp_log.h"
 #include "driver/gpio.h"
 #include "tp_spi.h"
 #include <stddef.h>
@@ -15,6 +16,8 @@
 /*********************
  *      DEFINES
  *********************/
+#define TAG "XPT2046"
+
 #define CMD_X_READ  0b10010000  // NOTE: XPT2046 data sheet says this is actually Y
 #define CMD_Y_READ  0b11010000  // NOTE: XPT2046 data sheet says this is actually X
 #define CMD_Z1_READ 0b10110000
@@ -56,7 +59,7 @@ uint8_t avg_last;
  */
 void xpt2046_init(void)
 {
-    LV_LOG_INFO("Initialization");
+    ESP_LOGI(TAG, "XPT2046 Initialization");
 
 #if XPT2046_TOUCH_IRQ || XPT2046_TOUCH_IRQ_PRESS
     gpio_config_t irq_config = {
@@ -91,19 +94,19 @@ bool xpt2046_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
 
         x = xpt2046_cmd(CMD_X_READ);
         y = xpt2046_cmd(CMD_Y_READ);
-        LV_LOG_INFO("P(%d,%d)", x, y);
+        ESP_LOGI(TAG, "P(%d,%d)", x, y);
 
         /*Normalize Data back to 12-bits*/
         x = x >> 4;
         y = y >> 4;
-        LV_LOG_INFO("P_norm(%d,%d)", x, y);
+        ESP_LOGI(TAG, "P_norm(%d,%d)", x, y);
         
         xpt2046_corr(&x, &y);
         xpt2046_avg(&x, &y);
         last_x = x;
         last_y = y;
 
-        LV_LOG_INFO("x = %d, y = %d", x, y);
+        ESP_LOGI(TAG, "x = %d, y = %d", x, y);
     }
     else
     {