Add SSD1783 LCD driver for C155 phone

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4981 7fd9a85b-ad96-42d3-883c-3090e2eb8679

9 files changed, 701 insertions, 10 deletions

diff --git a/nuttx/configs/compal_e99/nsh_highram/appconfig b/nuttx/configs/compal_e99/nsh_highram/appconfig
index 7baad2e258..65eed81f79 100644
--- a/nuttx/configs/compal_e99/nsh_highram/appconfig
+++ b/nuttx/configs/compal_e99/nsh_highram/appconfig
@@ -40,5 +40,10 @@ CONFIGURED_APPS += nshlib
 
 
 # Path to example in apps/examples
-CONFIGURED_APPS += examples/hello
+#CONFIGURED_APPS += examples/hello #fails not finding hello_main despite of good config
 CONFIGURED_APPS += vsn/poweroff
+CONFIGURED_APPS += examples/ostest
+CONFIGURED_APPS += examples/nxtext
+CONFIGURED_APPS += examples/nxhello
+CONFIGURED_APPS += examples/nxlines
+CONFIGURED_APPS += examples/nximage
diff --git a/nuttx/configs/compal_e99/nsh_highram/defconfig b/nuttx/configs/compal_e99/nsh_highram/defconfig
index dea94f8a35..f538cbb74b 100644
--- a/nuttx/configs/compal_e99/nsh_highram/defconfig
+++ b/nuttx/configs/compal_e99/nsh_highram/defconfig
@@ -207,6 +207,7 @@ CONFIG_HAVE_LIBM=n
 #
 #CONFIG_APPS_DIR=
 CONFIG_DEBUG=n
+CONFIG_DEBUG_GRAPHICS=n
 CONFIG_DEBUG_VERBOSE=n
 CONFIG_DEBUG_SYMBOLS=n
 CONFIG_ARCH_LOWPUTC=y
@@ -434,6 +435,49 @@ CONFIG_NSH_BUILTIN_APPS=y
 #
 # Settings for examples/hello
 CONFIG_EXAMPLES_HELLO_BUILTIN=y
+CONFIG_EXAMPLES_NXHELLO_BUILTIN=y
+CONFIG_EXAMPLES_NXTEXT_BUILTIN=y
+CONFIG_EXAMPLES_NXIMAGE_BUILTIN=y
+CONFIG_EXAMPLES_NXLINES_BUILTIN=y
+
+CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=2
+CONFIG_EXAMPLES_NXLINES_LINEWIDTH=4
+
+CONFIG_EXAMPLES_NXTEXT_NOGETRUN=y
+CONFIG_EXAMPLES_NXTEXT_BPP=16
+CONFIG_EXAMPLES_NXTEXT_BGFONTID=14
+CONFIG_EXAMPLES_NXHELLO_BPP=16
+CONFIG_EXAMPLES_NXIMAGE_XSCALEp5=y
+CONFIG_EXAMPLES_NXIMAGE_YSCALEp5=y
+#CONFIG_EXAMPLES_NXLINES_EXTERNINIT=y
+#CONFIG_EXAMPLES_NXHELLO_EXTERNINIT=y
+#CONFIG_EXAMPLES_NXTEXT_EXTERNINIT=y
+#CONFIG_EXAMPLES_NXIMAGE_EXTERNINIT=y
+
+# LCD Drivers settings
+CONFIG_NX_LCDDRIVER=y
+CONFIG_LCD_SSD1783=y
+
+#
+# Graphics
+CONFIG_NX=y
+CONFIG_NXCONSOLE=n
+CONFIG_NX_KBD=y
+CONFIG_LCD_MAXPOWER=1
+CONFIG_NX_BLOCKING=y
+CONFIG_NX_DISABLE_1BPP=y
+CONFIG_NX_DISABLE_2BPP=y
+CONFIG_NX_DISABLE_4BPP=y
+CONFIG_NX_DISABLE_8BPP=y
+CONFIG_NX_DISABLE_16BPP=n
+CONFIG_NX_DISABLE_24BPP=y
+CONFIG_NX_DISABLE_32BPP=y
+CONFIG_NXCONSOLE_BPP=16
+CONFIG_NXCONSOLE_NOGETRUN=y
+CONFIG_NXFONT_SANS17X22=y
+CONFIG_NX_MULTIUSER=n
+CONFIG_EXAMPLES_NXTEXT_BPP=16
+CONFIG_EXAMPLES_NXTEXT_DEVNO=0
 
 #
 # Settings for examples/wget
diff --git a/nuttx/configs/compal_e99/nsh_highram/ld.script b/nuttx/configs/compal_e99/nsh_highram/ld.script
index 8295e052c1..db72f251aa 100644
--- a/nuttx/configs/compal_e99/nsh_highram/ld.script
+++ b/nuttx/configs/compal_e99/nsh_highram/ld.script
@@ -14,9 +14,9 @@ MEMORY
     /* 0x800000-0xa00000 */
     /* compal-loaded binary: our text, initialized data */
     LRAM (rw) : ORIGIN = 0x00800000, LENGTH = 0x00020000
-    TRAM (rw) : ORIGIN = 0x00820000, LENGTH = 0x00019000
+    TRAM (rw) : ORIGIN = 0x00820000, LENGTH = 0x0001d000
     /* compal-loaded binary: our unitialized data, stacks, heap */
-    IRAM (rw) : ORIGIN = 0x00839000, LENGTH = 0x00006000
+    IRAM (rw) : ORIGIN = 0x0083d000, LENGTH = 0x00002000
 }
 SECTIONS
 {
diff --git a/nuttx/configs/compal_e99/src/Makefile b/nuttx/configs/compal_e99/src/Makefile
index da253a11af..97569236fe 100644
--- a/nuttx/configs/compal_e99/src/Makefile
+++ b/nuttx/configs/compal_e99/src/Makefile
@@ -42,7 +42,7 @@ CFLAGS		+= -I$(TOPDIR)/sched
 
 ASRCS		=
 AOBJS		= $(ASRCS:.S=$(OBJEXT))
-CSRCS		= dummy.c
+CSRCS		= dummy.c ssd1783.c
 COBJS		= $(CSRCS:.c=$(OBJEXT))
 
 SRCS		= $(ASRCS) $(CSRCS)
diff --git a/nuttx/configs/compal_e99/src/ssd1783.c b/nuttx/configs/compal_e99/src/ssd1783.c
new file mode 100644
index 0000000000..41bbe11f54
--- /dev/null
+++ b/nuttx/configs/compal_e99/src/ssd1783.c
@@ -0,0 +1,523 @@
+/************************************************************************************
+ * nuttx/configs/compal_e99/src/ssd1783.c
+ *
+ *   Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *           Laurent Latil <laurent@latil.nom.fr>
+ *           Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
+ *           Alan Carvalho de Assis <acassis@gmail.com>
+ *
+ * This driver for SSD1783 used part of SSD1783 driver developed by
+ * Christian Vogel <vogelchr@vogel.cx> for Osmocom-BB and relicensed
+ * to BSD with permission from author.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/fb.h>
+
+#include <sys/types.h>
+#include <assert.h>
+#include <debug.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <arch/calypso/uwire.h>
+#include <arch/calypso/clock.h>
+
+#include "up_arch.h"
+#include "ssd1783.h"
+
+/* Color depth and format */
+#define LCD_BPP          16
+#define LCD_COLORFMT     FB_FMT_RGB16_555
+
+/* Display Resolution */
+#  define LCD_XRES       98
+#  define LCD_YRES       67
+
+/* Debug ******************************************************************************/
+#ifdef CONFIG_DEBUG_LCD
+# define lcddbg(format, arg...)  vdbg(format, ##arg)
+#else
+# define lcddbg(x...)
+#endif
+
+/** This should be put elsewhere */
+#ifdef __CC_ARM               /* ARM Compiler        */
+#define lcd_inline            static __inline
+#elif defined (__ICCARM__)    /* for IAR Compiler */
+#define lcd_inline            inline
+#elif defined (__GNUC__)      /* GNU GCC Compiler */
+#define lcd_inline            static __inline
+#else
+#define lcd_inline            static
+#endif
+
+static void lcd_clear(void);
+static void fb_ssd1783_send_cmdlist(const struct ssd1783_cmdlist *p);
+
+/* LCD Data Transfer Methods */
+int lcd_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
+    size_t npixels);
+int lcd_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
+    size_t npixels);
+
+/* LCD Configuration */
+static int lcd_getvideoinfo(FAR struct lcd_dev_s *dev,
+    FAR struct fb_videoinfo_s *vinfo);
+static int lcd_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
+    FAR struct lcd_planeinfo_s *pinfo);
+
+/* LCD RGB Mapping */
+#ifdef CONFIG_FB_CMAP
+#  error "RGB color mapping not supported by this driver"
+#endif
+
+/* Cursor Controls */
+#ifdef CONFIG_FB_HWCURSOR
+#  error "Cursor control not supported by this driver"
+#endif
+
+/* LCD Specific Controls */
+static int lcd_getpower(struct lcd_dev_s *dev);
+static int lcd_setpower(struct lcd_dev_s *dev, int power);
+static int lcd_getcontrast(struct lcd_dev_s *dev);
+static int lcd_setcontrast(struct lcd_dev_s *dev, unsigned int contrast);
+
+/* Initialization (LCD ctrl / backlight) */
+static inline void lcd_initialize(void);
+
+/**************************************************************************************
+ * Private Data
+ **************************************************************************************/
+
+/* This is working memory allocated by the LCD driver for each LCD device
+ * and for each color plane.  This memory will hold one raster line of data.
+ * The size of the allocated run buffer must therefore be at least
+ * (bpp * xres / 8).  Actual alignment of the buffer must conform to the
+ * bitwidth of the underlying pixel type.
+ *
+ * If there are multiple planes, they may share the same working buffer
+ * because different planes will not be operate on concurrently.  However,
+ * if there are multiple LCD devices, they must each have unique run buffers.
+ */
+
+static uint16_t g_runbuffer[LCD_XRES];
+
+/* This structure describes the overall LCD video controller */
+
+static const struct fb_videoinfo_s g_videoinfo =
+{ .fmt = LCD_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
+  .xres = LCD_XRES, /* Horizontal resolution in pixel columns */
+  .yres = LCD_YRES, /* Vertical resolutiSend a command list to the LCD panelon in pixel rows */
+  .nplanes = 1, /* Number of color planes supported */
+};
+
+/* This is the standard, NuttX Plane information object */
+
+static const struct lcd_planeinfo_s g_planeinfo =
+{ .putrun = lcd_putrun, /* Put a run into LCD memory */
+//  .getrun = lcd_getrun, /* Get a run from LCD memory */
+  .buffer = (uint8_t*) g_runbuffer, /* Run scratch buffer */
+  .bpp = LCD_BPP, /* Bits-per-pixel */
+};
+
+/* This is the standard, NuttX LCD driver object */
+
+static struct ssd1783_dev_s g_lcddev =
+{ .dev =
+  {
+    /* LCD Configuration */
+
+    .getvideoinfo = lcd_getvideoinfo,
+    .getplaneinfo = lcd_getplaneinfo,
+
+/* LCD RGB Mapping -- Not supported */
+/* Cursor Controls -- Not supported */
+
+/* LCD Specific Controls */
+    .getpower = lcd_getpower,
+    .setpower = lcd_setpower,
+//    .getcontrast = lcd_getcontrast,
+//    .setcontrast = lcd_setcontrast,
+  },
+  .power=0
+};
+
+/* we trust gcc to move this expensive bitshifting out of
+   the loops in the drawing funtcions */
+static uint8_t rgb_to_pixel(uint16_t color)
+{
+  uint8_t ret;
+
+  ret  = (FB_COLOR_TO_R(color) & 0xe0);      /* 765 = RRR */
+  ret |= (FB_COLOR_TO_G(color) & 0xe0) >> 3; /* 432 = GGG */
+  ret |= (FB_COLOR_TO_B(color) & 0xc0) >> 6; /*  10 =  BB */
+
+  return ret;
+}
+
+/* somehow the palette is messed up, RRR seems to have the
+   bits reversed!  R0 R1 R2 G G G B B ---> R2 R1 R0 G G G B B */
+uint8_t fix_rrr(uint8_t v){
+  return (v & 0x5f) | (v & 0x80) >> 2 | (v & 0x20) << 2;
+}
+
+
+lcd_inline void write_data(uint16_t datain)
+{
+  uint16_t dataout = 0x0100 | fix_rrr(rgb_to_pixel(datain));
+  uwire_xfer(SSD1783_DEV_ID,SSD1783_UWIRE_BITLEN,&dataout, NULL);
+}
+
+static void fb_ssd1783_send_cmdlist(const struct ssd1783_cmdlist *p)
+{
+  int i=0;
+
+  while(p->is_cmd != END)
+    {
+      uint16_t sendcmd = p->data;
+      if(p->is_cmd == DATA)
+        sendcmd |= 0x0100; /* 9th bit is cmd/data flag */
+      uwire_xfer(SSD1783_DEV_ID, SSD1783_UWIRE_BITLEN, &sendcmd, NULL);
+      p++;
+      i++;
+    }
+}
+
+static void lcd_write_prepare(unsigned int x1, unsigned int x2, unsigned int y1, unsigned int y2)
+{;
+  DEBUGASSERT( (x1 < x2 )&& (y1 < y2));
+  struct ssd1783_cmdlist prepare_disp_write_cmds[] = {
+    { CMD,  0x15 },                  /*  set column address */
+    { DATA, x1 },
+    { DATA, x2 },
+    { CMD,  0x75 },                 /*  set page address (Y) */
+    { DATA, y1 },
+    { DATA, y2 },
+    { CMD,  0x5c },                  /* enter write display ram mode */
+    { END,  0x00 }
+  };
+  dbg("x1:%d, x2:%d, y1:%d, y2:%d\n",x1, x2,y1, y2);
+  fb_ssd1783_send_cmdlist(prepare_disp_write_cmds);
+}
+
+/**************************************************************************************
+ * Name:  lcd_putrun
+ *
+ * Description:
+ *   This method can be used to write a partial raster line to the LCD:
+ *
+ *   row     - Starting row to write to (range: 0 <= row < yres)
+ *   col     - Starting column to write to (range: 0 <= col <= xres-npixels)
+ *   buffer  - The buffer containing the run to be written to the LCD
+ *   npixels - The number of pixels to write to the LCD
+ *             (range: 0 < npixels <= xres-col)
+ *
+ **************************************************************************************/
+
+int lcd_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
+    size_t npixels)
+{
+  int i;
+  FAR const uint16_t *src = (FAR const uint16_t*) buffer;
+
+  /* Buffer must be provided and aligned to a 16-bit address boundary */
+  DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
+
+
+  /* Write the run to GRAM. */
+  lcd_write_prepare(col,col+npixels, row,row+1);
+
+  for (i = 0; i < npixels; i++)
+  {
+    write_data(*src++);
+  }
+  fb_ssd1783_send_cmdlist(nop);
+
+  return OK;
+}
+
+/**************************************************************************************
+ * Name:  lcd_getrun
+ *
+ * Description:
+ *   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)
+ *  buffer  - The buffer in which to return the run read from the LCD
+ *  npixels - The number of pixels to read from the LCD
+ *            (range: 0 < npixels <= xres-col)
+ *
+ **************************************************************************************/
+
+int lcd_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
+    size_t npixels)
+{
+  gvdbg("Not implemented\n");
+  return -ENOSYS;
+}
+
+/**************************************************************************************
+ * Name:  lcd_getvideoinfo
+ *
+ * Description:
+ *   Get information about the LCD video controller configuration.
+ *
+ **************************************************************************************/
+
+static int lcd_getvideoinfo(FAR struct lcd_dev_s *dev,
+    FAR struct fb_videoinfo_s *vinfo)
+{
+  DEBUGASSERT(dev && vinfo);gvdbg("fmt: %d xres: %d yres: %d nplanes: %d\n",
+      g_videoinfo.fmt, g_videoinfo.xres, g_videoinfo.yres, g_videoinfo.nplanes);
+  memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s));
+  return OK;
+}
+
+/**************************************************************************************
+ * Name:  lcd_getplaneinfo
+ *
+ * Description:
+ *   Get information about the configuration of each LCD color plane.
+ *
+ **************************************************************************************/
+
+static int lcd_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
+    FAR struct lcd_planeinfo_s *pinfo)
+{
+  DEBUGASSERT(dev && pinfo && planeno == 0);gvdbg("planeno: %d bpp: %d\n", planeno, g_planeinfo.bpp);
+  memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s));
+  return OK;
+}
+
+/**************************************************************************************
+ * Name:  lcd_getpower
+ *
+ * Description:
+ *   Get the LCD panel power status (0: full off - CONFIG_LCD_MAXPOWER: full on). On
+ *   backlit LCDs, this setting may correspond to the backlight setting.
+ *
+ **************************************************************************************/
+
+static int lcd_getpower(struct lcd_dev_s *dev)
+{
+  gvdbg("power: %d\n", 0);
+  return g_lcddev.power;
+}
+
+/**************************************************************************************
+ * Name:  lcd_setpower
+ *
+ * Description:
+ *   Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWER: full on).
+ *   Used here to set pwm duty on timer used for backlight.
+ *
+ **************************************************************************************/
+
+static int lcd_setpower(struct lcd_dev_s *dev, int power)
+{
+  uint16_t reg;
+
+  if (g_lcddev.power == power) {
+    return OK;
+  }
+
+  gvdbg("power: %d\n", power);
+  DEBUGASSERT(power <= CONFIG_LCD_MAXPOWER);
+
+  /* Set new power level */
+  reg = getreg16(ASIC_CONF_REG);
+  if (power)
+    {
+      reg = getreg16(ASIC_CONF_REG);
+      /* LCD Set I/O(3) / SA0 to I/O(3) mode */
+      reg &= ~( (1 << 12) | (1 << 10) | (1 << 7) | (1 << 1)) ;
+      /* don't set function pins to I2C Mode, C155 uses UWire */
+      /* TWL3025: Set SPI+RIF RX clock to rising edge */
+      reg |= (1 << 13) | (1 << 14);
+      putreg16(reg, ASIC_CONF_REG);
+
+      /* LCD Set I/O(3) to output mode and enable C155 backlight (IO1) */
+      /* FIXME: Put the display backlight control to backlight.c */
+      reg = getreg16(IO_CNTL_REG);
+      reg &= ~( (1 << 3) | (1 << 1));
+      putreg16(reg, IO_CNTL_REG);
+
+      /* LCD Set I/O(3) output low */
+      reg = getreg16(ARMIO_LATCH_OUT);
+      reg &= ~(1 << 3);
+      reg |= (1 << 1);
+      putreg16(reg, ARMIO_LATCH_OUT);
+    }
+    else
+    {
+      gvdbg("powering LCD off...\n");
+      /* Switch pin from PWL to LT */
+      reg &= ~ASCONF_PWL_ENA;
+      putreg8(reg, ASIC_CONF_REG);
+      /* Disable pwl */
+      putreg8(0x00, PWL_REG(PWL_CTRL));
+    }
+    return OK;
+}
+
+
+/**************************************************************************************
+ * Name:  lcd_getcontrast
+ *
+ * Description:
+ *   Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
+ *
+ **************************************************************************************/
+
+static int lcd_getcontrast(struct lcd_dev_s *dev)
+{
+  gvdbg("Not implemented\n");
+  return -ENOSYS;
+}
+
+/**************************************************************************************
+ * Name:  lcd_setcontrast
+ *
+ * Description:
+ *   Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
+ *
+ **************************************************************************************/
+
+static int lcd_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
+{
+  gvdbg("Not implemented\n");
+  return -ENOSYS;
+}
+
+/**************************************************************************************
+ * Name:  lcd_lcdinitialize
+ *
+ * Description:
+ *   Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
+ *
+ **************************************************************************************/
+static inline void lcd_initialize(void)
+{
+  gvdbg("%s: initializing LCD.\n",__FUNCTION__);
+  calypso_reset_set(RESET_EXT, 0);
+  usleep(5000);
+  uwire_init();
+  usleep(5000);
+  fb_ssd1783_send_cmdlist(ssd1783_initdata);
+}
+
+/**************************************************************************************
+ * Public Functions
+ **************************************************************************************/
+
+
+/**************************************************************************************
+ * Name:  up_lcdinitialize
+ *
+ * Description:
+ *   Initialize the LCD video hardware.  The initial state of the LCD is fully
+ *   initialized, display memory cleared, and the LCD ready to use, but with the power
+ *   setting at 0 (full off).
+ *
+ **************************************************************************************/
+
+int up_lcdinitialize(void)
+{
+  gvdbg("Initializing\n");
+
+  lcd_initialize();
+
+  /* Clear the display  */
+  lcd_clear();
+
+  return OK;
+}
+
+/**************************************************************************************
+ * Name:  up_lcdgetdev
+ *
+ * Description:
+ *   Return a a reference to the LCD object for the specified LCD.  This allows support
+ *   for multiple LCD devices.
+ *
+ **************************************************************************************/
+
+FAR struct lcd_dev_s *up_lcdgetdev(int lcddev)
+{
+  DEBUGASSERT(lcddev == 0);
+  return &g_lcddev.dev;
+}
+
+
+/**************************************************************************************
+ * Name:  up_lcduninitialize
+ *
+ * Description:
+ *   Un-initialize the LCD support
+ *
+ **************************************************************************************/
+
+void up_lcduninitialize(void)
+{
+  lcd_setpower(&g_lcddev.dev, 0);
+}
+
+/**************************************************************************************
+ * Name:  lcd_clear
+ *
+ * Description:
+ *   Fill the LCD ctrl memory with given color
+ *
+ **************************************************************************************/
+
+void lcd_clear()
+{
+  struct ssd1783_cmdlist prepare_disp_write_cmds[] = {
+    { CMD,  0x8E },
+    { DATA, 0x00 },
+    { DATA, 0x00 },
+    { DATA, LCD_XRES },
+    { DATA, LCD_YRES },
+    { END,  0x00 }
+  };
+
+  struct ssd1783_cmdlist nop[] = {
+    { CMD, 0x25 }, // NOP command
+    { END, 0x00 }
+  };
+
+  fb_ssd1783_send_cmdlist(prepare_disp_write_cmds);
+  fb_ssd1783_send_cmdlist(nop);
+}
diff --git a/nuttx/configs/compal_e99/src/ssd1783.h b/nuttx/configs/compal_e99/src/ssd1783.h
new file mode 100644
index 0000000000..50ec449259
--- /dev/null
+++ b/nuttx/configs/compal_e99/src/ssd1783.h
@@ -0,0 +1,110 @@
+#ifndef SSD1783_H_
+#define SSD1783_H_
+
+#include <nuttx/lcd/lcd.h>
+
+#define FB_COLOR_TO_R(v)                (((v)>>16) & 0xff)
+#define FB_COLOR_TO_G(v)                (((v)>> 8) & 0xff)
+#define FB_COLOR_TO_B(v)                ( (v)      & 0xff)
+
+#define SSD1783_UWIRE_BITLEN    9
+#define SSD1783_DEV_ID          0
+
+#define ARMIO_LATCH_OUT 0xfffe4802
+#define IO_CNTL_REG    0xfffe4804
+#define ASIC_CONF_REG  0xfffef008
+
+#define ASCONF_PWL_ENA  (1 << 4)
+
+/* begin backlight.c */
+#define BASE_ADDR_PWL   0xfffe8000
+#define PWL_REG(m)      (BASE_ADDR_PWL + (m))
+
+enum pwl_reg {
+        PWL_LEVEL       = 0,
+        PWL_CTRL        = 1,
+};
+
+enum ssd1783_cmdflag { CMD, DATA, END };
+
+struct ssd1783_cmdlist {
+  enum ssd1783_cmdflag is_cmd:8;	/* 1: is a command, 0: is data, 2: end marker! */
+  uint8_t data;  			/* 8 bit to send to LC display */
+} __attribute__((packed));
+
+static const struct ssd1783_cmdlist nop[] = {
+  { CMD, 0x25 }, // NOP command
+  { END, 0x00 }
+};
+
+static const struct ssd1783_cmdlist
+ssd1783_initdata[] = {
+  { CMD,  0xD1 }, /* CMD   set internal oscillator on */
+  { CMD,  0x94 }, /* CMD   leave sleep mode */
+  { CMD,  0xbb }, /* CMD   Set COM Output Scan Direction: */
+  { DATA, 0x01 }, /* DATA: 01: COM0-79, then COM159-80 */
+/* -------- DIFFERENT FROM ORIGINAL CODE: -------------- */
+/* we use 8bit per pixel packed RGB 332 */
+  { CMD,  0xbc }, /* CMD   Set Data Output Scan Direction */
+  { DATA, 0x00 }, /* DATA: column scan, normal rotation, normal display */
+  { DATA, 0x00 }, /* DATA: RGB color arrangement R G B R G B ... */
+/*-->*/ { DATA, 0x01 }, /* DATA: 8 bit per pixel mode MSB <RRRGGGBB> LSB */
+/* --------- /DIFFERENT ---------- */
+  { CMD,  0xce }, /* CMD   Set 256 Color Look Up Table LUT */
+  { DATA, 0x00 },	/* DATA red 000 */
+  { DATA, 0x03 },	/* DATA red 001 */
+  { DATA, 0x05 },	/* DATA red 010 */
+  { DATA, 0x07 },	/* DATA red 011 */
+  { DATA, 0x09 },	/* DATA red 100 */
+  { DATA, 0x0b },	/* DATA red 101 */
+  { DATA, 0x0d },	/* DATA red 110 */
+  { DATA, 0x0f },	/* DATA red 111 */
+  { DATA, 0x00 },	/* DATA green 000 */
+  { DATA, 0x03 },	/* DATA green 001 */
+  { DATA, 0x05 },	/* DATA green 010 */
+  { DATA, 0x07 },	/* DATA green 011 */
+  { DATA, 0x09 },	/* DATA green 100 */
+  { DATA, 0x0b },	/* DATA green 101 */
+  { DATA, 0x0d },	/* DATA green 110 */
+  { DATA, 0x0f },	/* DATA green 111 */
+  { DATA, 0x00 },	/* DATA blue 00 */
+  { DATA, 0x05 },	/* DATA blue 01 */
+  { DATA, 0x0a },	/* DATA blue 10 */
+  { DATA, 0x0f },	/* DATA blue 11 */
+  { CMD,  0xca }, /* CMD   Set Display Control - Driver Duty Selection */
+  { DATA, 0xff }, // can't find description of the values in the original
+  { DATA, 0x10 }, // display/ssd1783.c in my datasheet :-(
+  { DATA, 0x01 }, //
+  { CMD,  0xab }, /* CMD   Set Scroll Start */
+  { DATA, 0x00 }, /* DATA: Starting address at block 0 */
+  { CMD,  0x20 }, /* CMD   Set power control register */
+  { DATA, 0x0b }, /* DATA: booster 6x, reference gen. & int regulator */
+  { CMD,  0x81 }, /* CMD   Contrast Lvl & Int. Regul. Resistor Ratio */
+  { DATA, 0x29 }, /* DATA: contrast = 0x29 */
+  { DATA, 0x05 }, /* DATA: 0x05 = 0b101 -> 1+R2/R1 = 11.37 */
+  { CMD,  0xa7 }, /* CMD   Invert Display */
+  { CMD,  0x82 }, /* CMD   Set Temperature Compensation Coefficient */
+  { DATA, 0x00 }, /* DATA: Gradient is -0.10 % / degC */
+  { CMD,  0xfb }, /* CMD   Set Biasing Ratio */
+  { DATA, 0x03 }, /* DATA: 1/10 bias */
+  { CMD,  0xf2 }, /* CMD   Set Frame Frequency and N-line inversion */
+  { DATA, 0x08 }, /* DATA: 75 Hz (POR) */
+  { DATA, 0x06 }, /* DATA: n-line inversion: 6 lines */
+  { CMD,  0xf7 }, /* CMD   Select PWM/FRC Select Full Col./8col mode */
+  { DATA, 0x28 }, /* DATA: always 0x28 */
+  { DATA, 0x8c }, /* DATA: 4bit PWM + 2 bit FRC */
+  { DATA, 0x05 }, /* DATA: full color mode */
+  { CMD,  0xaf }, /* CMD   Display On */
+  { END,  0x00 }, /* MARKER: end of list */
+};
+
+struct ssd1783_dev_s
+{
+  /* Publicly visible device structure */
+  struct lcd_dev_s dev;
+
+  /* Private LCD-specific information follows */
+  uint8_t power; /* Current power setting */
+};
+
+#endif /* SSD1783_H_ */
diff --git a/nuttx/configs/mirtoo/nsh/setenv.sh b/nuttx/configs/mirtoo/nsh/setenv.sh
index d519babd46..95a5e8d309 100755
--- a/nuttx/configs/mirtoo/nsh/setenv.sh
+++ b/nuttx/configs/mirtoo/nsh/setenv.sh
@@ -60,8 +60,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/MicroChip/mplabc32/v1.12/bin"
 
 # This the Cygwin path to the location where I installed the Pinguino
 # toolchain under Windows.  You will have to edit this if you install the
-# tool chain in a different location or use a different version
-#export TOOLCHAIN_BIN="/cygdrive/c/PinguinoX.3/win32/p32/bin"
+# tool chain in a different location or use a different version.  /bin
+# needs to precede the tool path or otherwise you will get
+# /cygdrive/c/PinguinoX.3/win32/p32/bin/make which does not like POSIX
+# style paths.
+#export TOOLCHAIN_BIN="/bin:/cygdrive/c/PinguinoX.3/win32/p32/bin"
 
 # This the Linux path to the location where I installed the microchipOpen
 # toolchain under Linux.  You will have to edit this if you use the
diff --git a/nuttx/configs/mirtoo/nxffs/setenv.sh b/nuttx/configs/mirtoo/nxffs/setenv.sh
index ed9f1ba4d1..34f8d3ef18 100755
--- a/nuttx/configs/mirtoo/nxffs/setenv.sh
+++ b/nuttx/configs/mirtoo/nxffs/setenv.sh
@@ -60,8 +60,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/MicroChip/mplabc32/v1.12/bin"
 
 # This the Cygwin path to the location where I installed the Pinguino
 # toolchain under Windows.  You will have to edit this if you install the
-# tool chain in a different location or use a different version
-#export TOOLCHAIN_BIN="/cygdrive/c/PinguinoX.3/win32/p32/bin"
+# tool chain in a different location or use a different version.  /bin
+# needs to precede the tool path or otherwise you will get
+# /cygdrive/c/PinguinoX.3/win32/p32/bin/make which does not like POSIX
+# style paths.
+#export TOOLCHAIN_BIN="/bin:/cygdrive/c/PinguinoX.3/win32/p32/bin"
 
 # This the Linux path to the location where I installed the microchipOpen
 # toolchain under Linux.  You will have to edit this if you use the
diff --git a/nuttx/configs/mirtoo/ostest/setenv.sh b/nuttx/configs/mirtoo/ostest/setenv.sh
index f6dc56effa..28177a539d 100755
--- a/nuttx/configs/mirtoo/ostest/setenv.sh
+++ b/nuttx/configs/mirtoo/ostest/setenv.sh
@@ -60,8 +60,11 @@ export TOOLCHAIN_BIN="/cygdrive/c/MicroChip/mplabc32/v1.12/bin"
 
 # This the Cygwin path to the location where I installed the Pinguino
 # toolchain under Windows.  You will have to edit this if you install the
-# tool chain in a different location or use a different version
-#export TOOLCHAIN_BIN="/cygdrive/c/PinguinoX.3/win32/p32/bin"
+# tool chain in a different location or use a different version.  /bin
+# needs to precede the tool path or otherwise you will get
+# /cygdrive/c/PinguinoX.3/win32/p32/bin/make which does not like POSIX
+# style paths.
+#export TOOLCHAIN_BIN="/bin:/cygdrive/c/PinguinoX.3/win32/p32/bin"
 
 # This the Linux path to the location where I installed the microchipOpen
 # toolchain under Linux.  You will have to edit this if you use the