Make all pins configurable.

Author: jeremyjh

README.md

@@ -162,6 +162,7 @@ To run the demo, attach ILI9341, ILI9488 or ST7735 based display module to ESP32
 *   DC: 26 (display DC)
 *  TCS: 25 (touch screen CS)
 
+**Custom PINS can be defined in `idf.py menuconfig` in Components -> TFT Display menu**
 ---
 
 #### Display Kits
@@ -179,8 +180,6 @@ Configurations are available for:
 
 ---
 
-**If you want to use different pins, change them in** *tftspi.h*
-
 **if you want to use the touch screen functions, set** `#define USE_TOUCH 1` in *tftspi.h*
 
 Using *make menuconfig* **select tick rate 1000** ( → Component config → FreeRTOS → Tick rate (Hz) ) to get more accurate timings

components/tft/Kconfig

@@ -61,11 +61,59 @@ config TFT_INVERT_ROTATION1
     help
     If text is backwards on your display, try enabling this.
 
+config TFT_PIN_NUM_MOSI
+    int "GPIO for MOSI (Master Out Slave In)"
+    default 23
+    help
+    If not using a predefined display type, configure the MOSI pin here.
+
+config TFT_PIN_NUM_MISO
+    int "GPIO for MISO (Master In Slave Out)"
+    default 19
+    help
+    If not using a predefined display type, configure the MISO pin here.
+
+config TFT_PIN_NUM_SCK
+    int "GPIO for SCK (Serial Clock)"
+    default 18
+    help
+    If not using a predefined display type, configure the SCK pin here.
+
+config TFT_PIN_NUM_CS
+    int "GPIO for CS (Slave Select)"
+    default 5
+    help
+    If not using a predefined display type, configure the CS pin here.
+
+config TFT_PIN_NUM_DC
+    int "GPIO for DC (Data \ Command)"
+    default 26
+    help
+    If not using a predefined display type, configure the DC pin here.
+
+config TFT_PIN_NUM_TCS
+    int "GPIO for TCS (Touchscreen)"
+    default 25
+    help
+    Optional. If not using a predefined display type, configure the TCS (touch screen) pin here.
+
 config TFT_PIN_NUM_RST
     int "GPIO for Reset"
     default 0
     help
-    If not using an EXAMPLE display type, configure the reset pin here.
+    Optional. If not using a predefined display type, configure the reset pin here.
+
+config TFT_PIN_NUM_BCKL
+    int "GPIO for Back-light control"
+    default 0
+    help
+    Optional. If not using a predefined display type, configure the blacklight pin here.
+
+config TFT_ENABLE_TOUCH_SCREEN
+    bool "Enable Touch Screen"
+    default "n"
+    help
+    Enables touch screen features.
 
 config TFT_DISPLAY_WIDTH
     int "TFT display width in pixels."

components/tft/tftspi.h

@@ -185,34 +185,64 @@
 
 // The pins configured here are the native spi pins for HSPI interface
 // Any other valid pin combination can be used
-#define PIN_NUM_MISO 19		// SPI MISO
-#define PIN_NUM_MOSI 23		// SPI MOSI
-#define PIN_NUM_CLK  18		// SPI CLOCK pin
-#define PIN_NUM_CS   5		// Display CS pin
-#define PIN_NUM_DC   26		// Display command/data pin
-#define PIN_NUM_TCS  25		// Touch screen CS pin (NOT used if USE_TOUCH=0)
 
-// --------------------------------------------------------------
-// ** Set Reset and Backlight pins to 0 if not used !
-// ** If you want to use them, set them to some valid GPIO number
+#if defined(CONFIG_TFT_PIN_NUM_MISO)
+#define PIN_NUM_MISO CONFIG_TFT_PIN_NUM_MISO
+#else
+#define PIN_NUM_MISO 19
+#endif
+
+#if defined(CONFIG_TFT_PIN_NUM_MOSI)
+#define PIN_NUM_MOSI CONFIG_TFT_PIN_NUM_MOSI
+#else
+#define PIN_NUM_MOSI 23
+#endif
+
+#if defined(CONFIG_TFT_PIN_NUM_CLK)
+#define PIN_NUM_CLK CONFIG_TFT_PIN_NUM_CLK
+#else
+#define PIN_NUM_CLK 18
+#endif
+
+#if defined(CONFIG_TFT_PIN_NUM_CS)
+#define PIN_NUM_CS CONFIG_TFT_PIN_NUM_CS
+#else
+#define PIN_NUM_CS 5
+#endif
+
+#if defined(CONFIG_TFT_PIN_NUM_DC)
+#define PIN_NUM_DC CONFIG_TFT_PIN_NUM_DC
+#else
+#define PIN_NUM_DC 26
+#endif
+
+#if defined(CONFIG_TFT_PIN_NUM_TCS)
+#define PIN_NUM_TCS CONFIG_TFT_PIN_NUM_TCS
+#else
+#define PIN_NUM_TCS 25
+#endif
 
-// GPIO used for RESET control
 #if defined(CONFIG_TFT_PIN_NUM_RST)
 #define PIN_NUM_RST CONFIG_TFT_PIN_NUM_RST
 #else
 #define PIN_NUM_RST 0
 #endif
 
-#define PIN_NUM_BCKL 0  	// GPIO used for backlight control
+#if defined(CONFIG_TFT_PIN_NUM_BCKL)
+#define PIN_NUM_BCKL CONFIG_TFT_PIN_NUM_BCKL
+#else
+#define PIN_NUM_BCKL 0
+#endif
+
 #define PIN_BCKL_ON  0  	// GPIO value for backlight ON
 #define PIN_BCKL_OFF 1  	// GPIO value for backlight OFF
 // --------------------------------------------------------------
 
-// #######################################################
-// Set this to 1 if you want to use touch screen functions
-// #######################################################
-#define USE_TOUCH	TOUCH_TYPE_NONE
-// #######################################################
+#if defined(CONFIG_TFT_ENABLE_TOUCH_SCREEN)
+#define USE_TOUCH CONFIG_TFT_ENABLE_TOUCH_SCREEN
+#else
+#define USE_TOUCH TOUCH_TYPE_NONE
+#endif
 
 // #######################################################################
 // Default display width (smaller dimension) and height (larger dimension)