Added portrait mode (building with the work from hamid-elaosta:portrait)

drivers/st7789/st7789.cpp

@@ -58,6 +58,10 @@ namespace pimoroni {
         madctl[0] = 0x70;
       }
       
+      if(width == 135 && height == 240) {
+		madctl[0] = 0x00;
+      }
+
       command(reg::MADCTL,    1, madctl);  // row/column addressing order - rgb pixel order
       command(reg::TEON,      1, "\x00");  // enable frame sync signal if used
       command(reg::COLMOD,    1, "\x05");  // 16 bits per pixel
@@ -78,6 +82,11 @@ namespace pimoroni {
         command(reg::RASET,     4, "\x00\x35\x00\xbb"); // 53 .. 187 (135 rows)
         command(reg::CASET,     4, "\x00\x28\x01\x17"); // 40 .. 279 (240 columns)
       }
+
+      if(width == 135 && height == 240) {
+        command(reg::CASET,     4, "\x00\x34\x00\xba"); // 52 .. 186 (135 rows)
+        command(reg::RASET,     4, "\x00\x28\x01\x17"); // 40 .. 279 (240 columns)
+      }
     }
 
     // the dma transfer works but without vsync it's not that useful as you could

libraries/pico_display/pico_display.cpp

@@ -17,6 +17,11 @@ namespace pimoroni {
       __fb = buf;
   }
 
+  PicoDisplay::PicoDisplay(uint16_t *buf, int width, int height)
+    : PicoGraphics(width, height, buf), screen(width, height, buf)  {
+      __fb = buf;
+  }
+
   void PicoDisplay::init() {
     // setup the rgb led for pwm control
     pwm_config cfg = pwm_get_default_config();

libraries/pico_display/pico_display.hpp

@@ -9,7 +9,9 @@ namespace pimoroni {
   public:
     static const int WIDTH = 240;
     static const int HEIGHT = 135;
-    static const uint8_t A = 12;
+    static const int PORTRAIT_WIDTH  = 135;
+    static const int PORTRAIT_HEIGHT = 240;
+     static const uint8_t A = 12;
     static const uint8_t B = 13;
     static const uint8_t X = 14;
     static const uint8_t Y = 15;
@@ -20,6 +22,7 @@ namespace pimoroni {
 
   public:
     PicoDisplay(uint16_t *buf);
+    PicoDisplay(uint16_t *buf, int width, int height);
 
     void init();
     void update();