Merge pull request #191 from tore-espressif/develop

Merge master into develop

.github/workflows/build_examples.yml

@@ -6,12 +6,14 @@ jobs:
   build:
     strategy:
       matrix:
-        idf_ver: ["v4.1", "v4.2", "v4.3"]
-        idf_target: ["esp32"]
-        include:
-          - idf_ver: "v4.2"
+        idf_ver: ["v4.1", "v4.2", "v4.3", "v4.4"]
+        idf_target: ["esp32", "esp32s2", "esp32c3"]
+        exclude:
+          - idf_ver: "v4.1"
             idf_target: esp32s2
-          - idf_ver: "v4.3"
+          - idf_ver: "v4.1"
+            idf_target: esp32c3
+          - idf_ver: "v4.2"
             idf_target: esp32c3
     runs-on: ubuntu-20.04
     container: espressif/idf:release-${{ matrix.idf_ver }}

lvgl_helpers.c

@@ -82,14 +82,6 @@ void lvgl_interface_init(void)
 
     ESP_LOGI(TAG, "Display buffer size: %d", display_buffer_size);
 
-    /* SPI DMA Channel selection
-     * SPI_DMA_CH1 is only defined for ESP32, so let the driver choose which
-     * channel to use, and use the proven channel 1 on esp32 targets */
-    int dma_channel = 3;
-#if defined (CONFIG_IDF_TARGET_ESP32)
-    dma_channel = 1;
-#endif
-
 #if defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
     init_ft81x(dma_channel);
     return;
@@ -107,8 +99,9 @@ void lvgl_interface_init(void)
     miso = TP_SPI_MISO;
 #endif
 
+    // We use DMA channel 1 for all cases
     lvgl_spi_driver_init(TFT_SPI_HOST, miso, DISP_SPI_MOSI, DISP_SPI_CLK,
-        spi_max_transfer_size, dma_channel, DISP_SPI_IO2, DISP_SPI_IO3);
+        spi_max_transfer_size, 1, DISP_SPI_IO2, DISP_SPI_IO3);
 
     disp_spi_add_device(TFT_SPI_HOST);
 
@@ -248,6 +241,7 @@ size_t lvgl_get_display_buffer_size(void)
 
 #else /* LVGL v8 */
     /* ToDo: Implement display buffer size calculation with configuration values from the display driver */
+    disp_buffer_size = 320*40; // Reasonable for start
 #endif
 
     return disp_buffer_size;
@@ -267,12 +261,6 @@ bool lvgl_spi_driver_init(int host,
     int dma_channel,
     int quadwp_pin, int quadhd_pin)
 {
-#if defined (SPI_HOST_MAX)
-    assert((SPI1_HOST <= host) && (SPI_HOST_MAX > host));
-#else
-    assert((SPI1_HOST <= host) && ((SPI3_HOST + 1) > host));
-#endif
-
     const char *spi_names[] = {
         "SPI1_HOST", "SPI2_HOST", "SPI3_HOST"
     };
@@ -293,13 +281,7 @@ bool lvgl_spi_driver_init(int host,
     };
 
     ESP_LOGI(TAG, "Initializing SPI bus...");
-
-#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
-    esp_err_t ret = spi_bus_initialize((spi_host_device_t) host, &buscfg, (spi_dma_chan_t)dma_channel);
-#else
-    esp_err_t ret = spi_bus_initialize(host, &buscfg, dma_channel);
-#endif
-    
+    esp_err_t ret = spi_bus_initialize((spi_host_device_t) host, &buscfg, dma_channel);
     assert(ret == ESP_OK);
 
     return ESP_OK != ret;

lvgl_spi_conf.h

@@ -112,7 +112,11 @@ extern "C" {
  * If the user sets the same MOSI and CLK pins for both display and indev
  * controllers then we can assume the user is using the same SPI bus
  * If so verify the user specified the same SPI bus for both */
-#if !defined (CONFIG_LV_TFT_DISPLAY_CONTROLLER_FT81X)
+#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
 
 #if defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_SPI) && \
             (CONFIG_LV_TFT_DISPLAY_PROTOCOL_SPI == 1) && \
@@ -170,7 +174,6 @@ extern "C" {
 #else
 #define SPI_TFT_SPI_MODE    (0U)
 #endif
-#endif
 
 /* Touch driver */
 #if (CONFIG_LV_TOUCH_CONTROLLER == TOUCH_CONTROLLER_STMPE610)

lvgl_tft/Kconfig

@@ -469,8 +469,9 @@ menu "LVGL TFT Display controller"
 
     choice
         prompt "TFT SPI Bus." if LV_TFT_DISPLAY_PROTOCOL_SPI
-        default LV_TFT_DISPLAY_SPI2_HOST if LV_PREDEFINED_DISPLAY_TTGO
-        default LV_TFT_DISPLAY_SPI3_HOST if !LV_PREDEFINED_DISPLAY_TTGO
+        default LV_TFT_DISPLAY_SPI2_HOST
+        help
+              Select the SPI Bus the TFT Display is attached to.
 
         config LV_TFT_DISPLAY_SPI2_HOST
             bool "SPI2_HOST"