Allow ESP32 SPI pins to be undefined

See #618

Author: Bodmer

Processors/TFT_eSPI_ESP32.c

@@ -705,7 +705,7 @@ bool TFT_eSPI::initDMA(void)
 void TFT_eSPI::deInitDMA(void)
 {
   if (!DMA_Enabled) return;
-
+  spi_bus_remove_device(dmaHAL);
   spi_bus_free(spi_host);
   DMA_Enabled = false;
 }

Processors/TFT_eSPI_ESP32.h

@@ -166,12 +166,64 @@
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////////////
-// Make sure TFT_MISO is defined if not used to avoid an error message
+// Make sure SPI default pins are assigned if not specified by user or set to -1
 ////////////////////////////////////////////////////////////////////////////////////////
 #if !defined (TFT_PARALLEL_8_BIT)
-  #ifndef TFT_MISO
-    #define TFT_MISO -1
+
+  #ifdef USE_HSPI_PORT
+
+    #ifndef TFT_MISO
+      #define TFT_MISO 12
+    #endif
+    #if (TFT_MISO == -1)
+      #undef TFT_MISO
+      #define TFT_MISO 12
+    #endif
+
+    #ifndef TFT_MOSI
+      #define TFT_MOSI 13
+    #endif
+    #if (TFT_MOSI == -1)
+      #undef TFT_MOSI
+      #define TFT_MOSI 13
+    #endif
+
+    #ifndef TFT_SCLK 14
+      #define TFT_SCLK
+    #endif
+    #if (TFT_SCLK == -1)
+      #undef TFT_SCLK
+      #define TFT_SCLK 14
+    #endif
+
+  #else // VSPI port
+
+    #ifndef TFT_MISO
+      #define TFT_MISO 19
+    #endif
+    #if (TFT_MISO == -1)
+      #undef TFT_MISO
+      #define TFT_MISO 19
+    #endif
+
+    #ifndef TFT_MOSI
+      #define TFT_MOSI 23
+    #endif
+    #if (TFT_MOSI == -1)
+      #undef TFT_MOSI
+      #define TFT_MOSI 23
+    #endif
+
+    #ifndef TFT_SCLK
+      #define TFT_SCLK 18
+    #endif
+    #if (TFT_SCLK == -1)
+      #undef TFT_SCLK
+      #define TFT_SCLK 18
+    #endif
+
   #endif
+
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////////////

TFT_eSPI.h

@@ -16,7 +16,7 @@
 #ifndef _TFT_eSPIH_
 #define _TFT_eSPIH_
 
-#define TFT_ESPI_VERSION "2.2.7"
+#define TFT_ESPI_VERSION "2.2.8"
 
 /***************************************************************************************
 **                         Section 1: Load required header files

library.json

@@ -1,6 +1,6 @@
 {
   "name": "TFT_eSPI",
-  "version": "2.2.7",
+  "version": "2.2.8",
   "keywords": "Arduino, tft, ePaper, display, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9486, ST7789, RM68140",
   "description": "A TFT and ePaper SPI graphics library with optimisation for ESP8266, ESP32 and STM32",
   "repository":

library.properties

@@ -1,5 +1,5 @@
 name=TFT_eSPI
-version=2.2.7
+version=2.2.8
 author=Bodmer
 maintainer=Bodmer
 sentence=TFT graphics library for Arduino processors with performance optimisation for STM32, ESP8266 and ESP32