Fix UG-2832HSWEG04 landscape. Add reverse landscape support to UG_2864AMBAG01 and UG-9964HSWAG01. Fixe NXHELLO default colors for 1-bit mono modes

ChangeLog

@@ -5041,3 +5041,9 @@
 	  (2013-6-23).
 	* include/debug.h:  Added macro DEBUGPANIC for forces crashes when debug
 	  is enabled.
+	* drivers/lcd/ssd1306.c:  Driver now appears to be function for the
+	  UG-2832HSWEG04 in landscape mode (2013-6-24).
+	* drivers/lcd/ug-2864ambag01.c and ug-9664hswag01.c:  Add/updated
+	  support for reverse portrait mode from lessons learned with the
+	  UG-2832HSWEG04.  Untested changes! (2013-6-24).
+

configs/sam4l-xplained/README.txt

@@ -804,6 +804,7 @@ Configuration sub-directories
        Device Drivers -> LCDs
          CONFIG_LCD=y                       : Enable LCD support
          CONFIG_LCD_MAXCONTRAST=255         : Maximum contrast value
+         CONFIG_LCD_LANDSCAPE=y             : Landscape orientation (see below*)
          CONFIG_LCD_UG2832HSWEG04=y         : Enable support for the OLED
          CONFIG_LCD_SSD1306_SPIMODE=0       : SPI Mode 0
          CONFIG_LCD_SSD1306_SPIMODE=3500000 : Pick an SPI frequency
@@ -818,30 +819,42 @@ Configuration sub-directories
          CONFIG_NX=y                        : Enable graphics support
          CONFIG_NX_LCDDRIVER=y              : Using an LCD driver
          CONFIG_NX_NPLANES=1                : With a single color plane
-         CONFIG_NX_WRITEONLY=y              : This is a write only LCD
+         CONFIG_NX_WRITEONLY=n              : You can read from the LCD (see below**)
          CONFIG_NX_DISABLE_2BPP=y           : Disable all resolutions except 1BPP
          CONFIG_NX_DISABLE_4BPP=y
          CONFIG_NX_DISABLE_8BPP=y
          CONFIG_NX_DISABLE_16BPP=y
          CONFIG_NX_DISABLE_24BPP=y
          CONFIG_NX_DISABLE_32BPP=y
-         CONFIG_NX_PACKEDMSFIRST=y
+         CONFIG_NX_PACKEDMSFIRST=y          : LSB packed first (shouldn't matter)
          CONFIG_NXTK_BORDERWIDTH=2          : Use a small border
          CONFIG_NXTK_DEFAULT_BORDERCOLORS=y : Default border colors
          CONFIG_NXFONTS_CHARBITS=7          : 7-bit fonts
          CONFIG_NXFONT_SANS17X23B=y         : Pick a font (any that will fit)
 
+        * This orientation will put the buttons "above" the LCD.  The
+          reverse landscape configuration (CONFIG_LCD_RLANDSCAPE) should
+          "flip" the display so that the buttons are "below" the LCD.  That
+          configuration, however, is untested.
+
+       ** The hardware is write only, but the driver maintains a frame buffer
+          to support read and read-write-modiry operations on the LCD.
+
        Then, in order to use the OLED, you will need to build some kind of
        graphics application or use one of the NuttX graphics examples.
        Here, for example, is the setup for the graphic "Hello, World!"
        example:
 
          CONFIG_EXAMPLES_NXHELLO=y                : Enables the example
-         CONFIG_EXAMPLES_NXHELLO_DEFAULT_COLORS=y : Use default colors (monochrome)
+         CONFIG_EXAMPLES_NXHELLO_DEFAULT_COLORS=y : Use default colors (see below *)
          CONFIG_EXAMPLES_NXHELLO_DEFAULT_FONT=y   : Use the default font
          CONFIG_EXAMPLES_NXHELLO_BPP=1            : One bit per pixel
          CONFIG_EXAMPLES_NXHELLO_EXTERNINIT=y     : Special initialization is required.
 
+        * The OLED is monochrome so the only "colors" are blacka nd white.
+          The default "colors" will give you while text on a black background.
+          You can override the faults it you want black text on a while background.
+
     4. If the LCD1 module is connected to the SAM4L Xplained Pro, then
        support for the SLCDt can be enabled by making the following
        changes to the configuration:

drivers/lcd/README.txt

@@ -90,6 +90,8 @@ Examples: /drivers/lcd/
 
 Re-usable LCD drivers reside in the drivers/lcd directory:
 
+  LEDs:
+  ----
   mio283qt2.c. This is a driver for the MI0283QT-2 LCD from Multi-Inno
     Technology Co., Ltd.  This LCD is based on the Himax HX8347-D LCD
     controller.
@@ -98,10 +100,6 @@ Re-usable LCD drivers reside in the drivers/lcd directory:
     PCF883 or the Epson S1D15G10 display controller.  This LCD is used
     with the Olimex LPC1766-STK (but has not been fully integrated).
 
-  p14201.c.  Driver for RiT P14201 series display with SD1329 IC
-    controller.  This OLED is used with older versions of the
-    TI/Luminary LM3S8962 Evaluation Kit.
-
   ssd12989.c.  Generic LCD driver for LCDs based on the Solomon Systech
     SSD1289 LCD controller. Think of this as a template for an LCD driver
     that you will proably ahve to customize for any particular LCD
@@ -110,18 +108,35 @@ Re-usable LCD drivers reside in the drivers/lcd directory:
   st7567.c.  LCD Display Module, ST7567, Univision Technology Inc. Used
     with the LPCXpresso and Embedded Artists base board.
 
+  OLEDs:
+  -----
+  p14201.c.  Driver for RiT P14201 series display with SD1329 IC
+    controller.  Based on the SD1329 controller.  This OLED is used with
+    older versions of the TI/Luminary LM3S8962 Evaluation Kit.  Example
+    usage
+
+      configs/lm3s6965-ek/src
+      configs/lm3s8962-ek/src
+
   ug-2864ambag01.c.  OLED Display Module, UUG-2864AMBAG01, Univision
-    Technology Inc.  See configs/stm32f4discovery and configs/zp214xp
+    Technology Inc.  Based on the SH1101A controller.  Example usage:
-    for example usage.
+
+      configs/stm32f4discovery
+      configs/zp214xp
 
   ug-9664hswag01.c.  OLED Display Module, UG-9664HSWAG01, Univision
-    Technology Inc.  Used with the LPC Xpresso and Embedded Artists
+    Technology Inc.  Based on the SSD1305 controller.  Used with the
-    base board.
+    LPC Xpresso and Embedded Artists base board.  Example usage:
+
+      configs/lpcxpresso-lpc1768
 
   ssd1306.c.  OLED Display Modules based on the SSD1306 controllers.
     This includes the UG-2864HSWEG01 and UG2832HSWEG04, Both from Univision
     Technology Inc.  The latter is used with the OLED1 module that comes
-    with the Atmel SAM4l Xplained Pro board.
+    with the Atmel SAM4l Xplained Pro board.  Examplel usage:
+
+      configs/stm32f4discovery
+      configs/sam4l-xplained
 
 Examples: configs/
 ==================
@@ -191,6 +206,7 @@ that makes then less re-usable:
 
     configs/stm32f4discovery/src/up_ug2864ambag01.c
     configs/stm32f4discovery/src/up_ug2864hsweg01.c
+    configs/sam4l-xplained/src/up_ug2832hsweg04.c
     configs/zp214xpa/src/up_ug2864ambag01.c
 
   LCD controllers built-into the MCU:

drivers/lcd/p14201.c

@@ -1,6 +1,6 @@
 /**************************************************************************************
  * drivers/lcd/p14201.c
- * Driver for RiT P14201 series display (wih sd1329 IC controller)
+ * Driver for RiT P14201 series display (wih SD1329 IC controller)
  *
  *   Copyright (C) 2010, 2012 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

drivers/lcd/ssd1306.c

@@ -158,13 +158,12 @@
 #endif
 
 #if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
-#  warning "No support yet for portrait modes"
+#  warning "No support for portrait modes"
+#  undef CONFIG_LCD_LANDSCAPE
 #  define CONFIG_LCD_LANDSCAPE 1
 #  undef CONFIG_LCD_PORTRAIT
 #  undef CONFIG_LCD_RLANDSCAPE
 #  undef CONFIG_LCD_RPORTRAIT
-#elif defined(CONFIG_LCD_RLANDSCAPE)
-#  warning "Reverse landscape mode is untested and, hence, probably buggy"
 #endif
 
 /* SSD1306 Commands *******************************************************************/
@@ -274,6 +273,26 @@
 #define SSD1306_DEV_FBSIZE        (SSD1306_DEV_XSTRIDE * SSD1306_DEV_YRES)
 #define SSD1306_DEV_ROWSIZE       (SSD1306_DEV_XSTRIDE)
 
+/* Orientation.  There seem to be device differences. */
+
+#if defined(CONFIG_LCD_UG2864HSWEG01)
+#  if defined(CONFIG_LCD_LANDSCAPE)
+#    undef  SSD1306_DEV_REVERSEX
+#    undef  SSD1306_DEV_REVERSEY
+#  elif defined(CONFIG_LCD_RLANDSCAPE)
+#    define SSD1306_DEV_REVERSEX  1
+#    define SSD1306_DEV_REVERSEY  1
+#  endif
+#elif defined(CONFIG_LCD_UG2832HSWEG04)
+#  if defined(CONFIG_LCD_LANDSCAPE)
+#    define SSD1306_DEV_REVERSEX  1
+#    undef  SSD1306_DEV_REVERSEY
+#  elif defined(CONFIG_LCD_RLANDSCAPE)
+#    undef  SSD1306_DEV_REVERSEX
+#    define SSD1306_DEV_REVERSEY  1
+#  endif
+#endif
+
 /* Bit helpers */
 
 #define LS_BIT                    (1 << 0)
@@ -566,11 +585,31 @@ static int ssd1306_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf
       return OK;
     }
 
-  /* Perform coordinate conversion for reverse landscape mode */
+  /* Perform coordinate conversion for reverse landscape mode.
+   * If the rows are reversed then rows are are a mirror reflection of
+   * top to bottom.
+   */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef SSD1306_DEV_REVERSEY
   row = (SSD1306_DEV_YRES-1) - row;
+#endif
+
+  /* If the column is switched then the start of the run is the mirror of
+   * the end of the run.
+   *
+   *            col+pixlen-1
+   *     col    |
+   *  0  |      |                    XRES
+   *  .  S>>>>>>E                    .
+   *  .                    E<<<<<<S  .
+   *                       |      |
+   *                       |      `-(XRES-1)-col
+   *                       ` (XRES-1)-col-(pixlen-1)
+   */
+
+#ifdef SSD1306_DEV_REVERSEX
   col  = (SSD1306_DEV_XRES-1) - col;
+  col -= (pixlen - 1);
 #endif
 
   /* Get the page number.  The range of 64 lines is divided up into eight
@@ -603,11 +642,12 @@ static int ssd1306_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf
 
   fbmask  = 1 << (row & 7);
   fbptr   = &priv->fb[page * SSD1306_DEV_XRES + col];
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef SSD1306_DEV_REVERSEX
-  ptr     = fbptr + pixlen - 1;
+  ptr     = fbptr + (pixlen - 1);
 #else
   ptr     = fbptr;
 #endif
+
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -618,7 +658,7 @@ static int ssd1306_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf
     {
       /* Set or clear the corresponding bit */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef SSD1306_DEV_REVERSEX
       if ((*buffer & usrmask) != 0)
         {
           *ptr-- |= fbmask;
@@ -710,7 +750,7 @@ static int ssd1306_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buf
  * Name:  ssd1306_getrun
  *
  * Description:
- *   This method can be used to read a partial raster line from the LCD:
+ *   This method can be used to read a partial raster line from the LCD.
  *
  * Description:
  *   This method can be used to write a partial raster line to the LCD.
@@ -755,10 +795,29 @@ static int ssd1306_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
       return -EINVAL;
     }
 
-  /* Perform coordinate conversion for reverse landscape mode */
+  /* Perform coordinate conversion for reverse landscape mode.
+   * If the rows are reversed then rows are are a mirror reflection of
+   * top to bottom.
+   */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef SSD1306_DEV_REVERSEY
   row = (SSD1306_DEV_YRES-1) - row;
+#endif
+
+  /* If the column is switched then the start of the run is the mirror of
+   * the end of the run.
+   *
+   *            col+pixlen-1
+   *     col    |
+   *  0  |      |                    XRES
+   *  .  S>>>>>>E                    .
+   *  .                    E<<<<<<S  .
+   *                       |      |
+   *                       |      `-(XRES-1)-col
+   *                       ` (XRES-1)-col-(pixlen-1)
+   */
+
+#ifdef SSD1306_DEV_REVERSEX
   col  = (SSD1306_DEV_XRES-1) - col;
 #endif
 
@@ -792,11 +851,8 @@ static int ssd1306_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
    */
 
   fbmask  = 1 << (row & 7);
-#ifdef CONFIG_LCD_RLANDSCAPE
-  fbptr   = &priv->fb[page * (SSD1306_DEV_XRES-1) + col + pixlen];
-#else
   fbptr   = &priv->fb[page * SSD1306_DEV_XRES + col];
-#endif
+
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -808,7 +864,7 @@ static int ssd1306_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
     {
       /* Set or clear the corresponding bit */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef SSD1306_DEV_REVERSEX
       uint8_t byte = *fbptr--;
 #else
       uint8_t byte = *fbptr++;
@@ -916,7 +972,7 @@ static int ssd1306_getpower(FAR struct lcd_dev_s *dev)
  *
  **************************************************************************************/
 
-static int ssd1306_setpower(struct lcd_dev_s *dev, int power)
+static int ssd1306_setpower(FAR struct lcd_dev_s *dev, int power)
 {
   struct ssd1306_dev_s *priv = (struct ssd1306_dev_s *)dev;
   DEBUGASSERT(priv && (unsigned)power <= CONFIG_LCD_MAXPOWER && priv->spi);
@@ -939,7 +995,7 @@ static int ssd1306_setpower(struct lcd_dev_s *dev, int power)
     {
       /* Turn the display on */
 
-      (void)SPI_SEND(priv->spi, SSD1306_DISPON); /* Display on, dim mode */
+      (void)SPI_SEND(priv->spi, SSD1306_DISPON);
       priv->on = true;
     }
 

drivers/lcd/ug-2864ambag01.c

@@ -3,7 +3,7 @@
  * Driver for Univision UG-2864AMBAG01 OLED display (wih SH1101A controller) in SPI
  * mode
  *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2012-2013 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * References:
@@ -153,8 +153,6 @@
 #  undef CONFIG_LCD_PORTRAIT
 #  undef CONFIG_LCD_RLANDSCAPE
 #  undef CONFIG_LCD_RPORTRAIT
-#elif defined(CONFIG_LCD_RLANDSCAPE)
-#  warning "Reverse landscape mode is untested and, hence, probably buggy"
 #endif
 
 /* SH1101A Commands *******************************************************************/
@@ -247,6 +245,16 @@
 #define UG2864AMBAG01_FBSIZE       (UG2864AMBAG01_XSTRIDE * UG2864AMBAG01_YRES)
 #define UG2864AMBAG01_ROWSIZE      (UG2864AMBAG01_XSTRIDE)
 
+/* Orientation */
+
+#if defined(CONFIG_LCD_LANDSCAPE)
+#  undef  UG2864AMBAG01_DEV_REVERSEX
+#  undef  UG2864AMBAG01_DEV_REVERSEY
+#elif defined(CONFIG_LCD_RLANDSCAPE)
+#  define UG2864AMBAG01_DEV_REVERSEX 1
+#  define UG2864AMBAG01_DEV_REVERSEY 1
+#endif
+
 /* Bit helpers */
 
 #define LS_BIT                     (1 << 0)
@@ -539,11 +547,31 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
       return OK;
     }
 
-  /* Perform coordinate conversion for reverse landscape mode */
+  /* Perform coordinate conversion for reverse landscape mode.
+   * If the rows are reversed then rows are are a mirror reflection of
+   * top to bottom.
+   */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef UG2864AMBAG01_DEV_REVERSEY
-  row = (UG2864AMBAG01_YRES-1) - row;
+  row = (UG2864AMBAG01_DEV_YRES-1) - row;
-  col = (UG2864AMBAG01_XRES-1) - col;
+#endif
+
+  /* If the column is switched then the start of the run is the mirror of
+   * the end of the run.
+   *
+   *            col+pixlen-1
+   *     col    |
+   *  0  |      |                    XRES
+   *  .  S>>>>>>E                    .
+   *  .                    E<<<<<<S  .
+   *                       |      |
+   *                       |      `-(XRES-1)-col
+   *                       ` (XRES-1)-col-(pixlen-1)
+   */
+
+#ifdef UG2864AMBAG01_DEV_REVERSEX
+  col  = (UG2864AMBAG01_DEV_XRES-1) - col;
+  col -= (pixlen - 1);
 #endif
 
   /* Get the page number.  The range of 64 lines is divided up into eight
@@ -576,11 +604,12 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
 
   fbmask  = 1 << (row & 7);
   fbptr   = &priv->fb[page * UG2864AMBAG01_XRES + col];
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef UG2864AMBAG01_DEV_REVERSEX
-  ptr     = fbptr + pixlen - 1;
+  ptr     = fbptr + (pixlen - 1);
 #else
   ptr     = fbptr;
 #endif
+
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -591,7 +620,7 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
     {
       /* Set or clear the corresponding bit */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef UG2864AMBAG01_DEV_REVERSEX
       if ((*buffer & usrmask) != 0)
         {
           *ptr-- |= fbmask;
@@ -683,7 +712,7 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
  * Name:  ug2864ambag01_getrun
  *
  * Description:
- *   This method can be used to read a partial raster line from the LCD:
+ *   This method can be used to read a partial raster line from the LCD.
  *
  * Description:
  *   This method can be used to write a partial raster line to the LCD.
@@ -728,11 +757,30 @@ static int ug2864ambag01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buf
       return -EINVAL;
     }
 
-  /* Perform coordinate conversion for reverse landscape mode */
+  /* Perform coordinate conversion for reverse landscape mode.
+   * If the rows are reversed then rows are are a mirror reflection of
+   * top to bottom.
+   */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef UG2864AMBAG01_DEV_REVERSEY
-  row = (UG2864AMBAG01_YRES-1) - row;
+  row = (UG2864AMBAG01_DEV_YRES-1) - row;
-  col = (UG2864AMBAG01_XRES-1) - col;
+#endif
+
+  /* If the column is switched then the start of the run is the mirror of
+   * the end of the run.
+   *
+   *            col+pixlen-1
+   *     col    |
+   *  0  |      |                    XRES
+   *  .  S>>>>>>E                    .
+   *  .                    E<<<<<<S  .
+   *                       |      |
+   *                       |      `-(XRES-1)-col
+   *                       ` (XRES-1)-col-(pixlen-1)
+   */
+
+#ifdef UG2864AMBAG01_DEV_REVERSEX
+  col  = (UG2864AMBAG01_DEV_XRES-1) - col;
 #endif
 
   /* Then transfer the display data from the shadow frame buffer memory */
@@ -765,11 +813,8 @@ static int ug2864ambag01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buf
    */
 
   fbmask  = 1 << (row & 7);
-#ifdef CONFIG_LCD_RLANDSCAPE
-  fbptr   = &priv->fb[page * (UG2864AMBAG01_XRES-1) + col + pixlen];
-#else
   fbptr   = &priv->fb[page * UG2864AMBAG01_XRES + col];
-#endif
+
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -781,7 +826,7 @@ static int ug2864ambag01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buf
     {
       /* Set or clear the corresponding bit */
 
-#ifdef CONFIG_LCD_RLANDSCAPE
+#ifdef UG2864AMBAG01_DEV_REVERSEX
       uint8_t byte = *fbptr--;
 #else
       uint8_t byte = *fbptr++;
@@ -912,7 +957,7 @@ static int ug2864ambag01_setpower(struct lcd_dev_s *dev, int power)
     {
       /* Turn the display on */
 
-      (void)SPI_SEND(priv->spi, SH1101A_DISPON); /* Display on, dim mode */
+      (void)SPI_SEND(priv->spi, SH1101A_DISPON);
       priv->on = true;
     }
 

drivers/lcd/ug-9664hswag01.c

@@ -113,6 +113,16 @@
 #  define CONFIG_UG9664HSWAG01_NINTERFACES 1
 #endif
 
+/* Orientation */
+
+#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
+#  warning "No support for portrait modes"
+#  define CONFIG_LCD_LANDSCAPE 1
+#  undef CONFIG_LCD_PORTRAIT
+#  undef CONFIG_LCD_RLANDSCAPE
+#  undef CONFIG_LCD_RPORTRAIT
+#endif
+
 /* Verbose debug must also be enabled to use the extra OLED debug */
 
 #ifndef CONFIG_DEBUG
@@ -171,8 +181,16 @@
 
 /* Display Resolution */
 
-#define UG_XRES         96
+#define UG_LCD_XRES     96
-#define UG_YRES         64
+#define UG_LCD_YRES     64
+
+#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
+#  define UG_XRES      UG_LCD_XRES
+#  define UG_YRES      UG_LCD_YRES
+#else
+#  define UG_XRES      UG_LCD_YRES
+#  define UG_YRES      UG_LCD_XRES
+#endif
 
 /* Color depth and format */
 
@@ -188,6 +206,16 @@
 
 #define UG_FBSIZE       (UG_XRES * UG_YSTRIDE)
 
+/* Orientation */
+
+#if defined(CONFIG_LCD_LANDSCAPE)
+#  undef  UG_LCD_REVERSEX
+#  undef  UG_LCD_REVERSEY
+#elif defined(CONFIG_LCD_RLANDSCAPE)
+#  define UG_LCD_REVERSEX  1
+#  define UG_LCD_REVERSEY  1
+#endif
+
 /* Bit helpers */
 
 #define LS_BIT          (1 << 0)
@@ -496,6 +524,33 @@ static int ug_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
       return OK;
     }
 
+  /* Perform coordinate conversion for reverse landscape mode.
+   * If the rows are reversed then rows are are a mirror reflection of
+   * top to bottom.
+   */
+
+#ifdef UG_LCD_REVERSEY
+  row = (UG_YRES-1) - row;
+#endif
+
+  /* If the column is switched then the start of the run is the mirror of
+   * the end of the run.
+   *
+   *            col+pixlen-1
+   *     col    |
+   *  0  |      |                    XRES
+   *  .  S>>>>>>E                    .
+   *  .                    E<<<<<<S  .
+   *                       |      |
+   *                       |      `-(XRES-1)-col
+   *                       ` (XRES-1)-col-(pixlen-1)
+   */
+
+#ifdef UG_LCD_REVERSEX
+  col  = (UG_XRES-1) - col;
+  col -= (pixlen - 1);
+#endif
+
   /* Get the page number.  The range of 64 lines is divided up into eight
    * pages of 8 lines each.
    */
@@ -526,7 +581,12 @@ static int ug_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
 
   fbmask  = 1 << (row & 7);
   fbptr   = &priv->fb[page * UG_XRES + col];
+#ifdef UG_LCD_REVERSEX
+  ptr     = fbptr + (pixlen - 1);
+#else
   ptr     = fbptr;
+#endif
+
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -537,6 +597,16 @@ static int ug_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
     {
       /* Set or clear the corresponding bit */
 
+#ifdef UG_LCD_REVERSEX
+      if ((*buffer & usrmask) != 0)
+        {
+          *ptr-- |= fbmask;
+        }
+      else
+        {
+          *ptr-- &= ~fbmask;
+        }
+#else
       if ((*buffer & usrmask) != 0)
         {
           *ptr++ |= fbmask;
@@ -545,6 +615,7 @@ static int ug_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
         {
           *ptr++ &= ~fbmask;
         }
+#endif
 
       /* Inc/Decrement to the next source pixel */
 
@@ -609,7 +680,7 @@ static int ug_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
  * Name:  ug_getrun
  *
  * Description:
- *   This method can be used to read a partial raster line from the LCD:
+ *   This method can be used to read a partial raster line from the LCD.
  *
  *  row     - Starting row to read from (range: 0 <= row < yres)
  *  col     - Starting column to read read (range: 0 <= col <= xres-npixels)
@@ -650,6 +721,32 @@ static int ug_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
       return -EINVAL;
     }
 
+  /* Perform coordinate conversion for reverse landscape mode.
+   * If the rows are reversed then rows are are a mirror reflection of
+   * top to bottom.
+   */
+
+#ifdef UG_LCD_REVERSEY
+  row = (UG_YRES-1) - row;
+#endif
+
+  /* If the column is switched then the start of the run is the mirror of
+   * the end of the run.
+   *
+   *            col+pixlen-1
+   *     col    |
+   *  0  |      |                    XRES
+   *  .  S>>>>>>E                    .
+   *  .                    E<<<<<<S  .
+   *                       |      |
+   *                       |      `-(XRES-1)-col
+   *                       ` (XRES-1)-col-(pixlen-1)
+   */
+
+#ifdef UG_LCD_REVERSEX
+  col  = (UG_XRES-1) - col;
+#endif
+
   /* Then transfer the display data from the shadow frame buffer memory */
   /* Get the page number.  The range of 64 lines is divided up into eight
    * pages of 8 lines each.
@@ -681,6 +778,7 @@ static int ug_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
 
   fbmask  = 1 << (row & 7);
   fbptr   = &priv->fb[page * UG_XRES + col];
+
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -692,7 +790,12 @@ static int ug_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
     {
       /* Set or clear the corresponding bit */
 
+#ifdef UG_LCD_REVERSEX
+      uint8_t byte = *fbptr--;
+#else
       uint8_t byte = *fbptr++;
+#endif
+
       if ((byte & fbmask) != 0)
         {
           *buffer |= usrmask;