From 2dff31a54368afd4ddc338d5b16947e33a258698 Mon Sep 17 00:00:00 2001
From: thesourcerer8 <pg@futureware.at>
Date: Tue, 9 Jun 2015 17:19:48 +0200
Subject: [PATCH 1/4] Adding a tool to convert images for fernvale

This tool converts a PNM image to the framebuffer format of Fernvale
---
 pnm2bin.pl | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 pnm2bin.pl

diff --git a/pnm2bin.pl b/pnm2bin.pl
new file mode 100644
index 0000000..499177c
--- /dev/null
+++ b/pnm2bin.pl
@@ -0,0 +1,43 @@
+#!/bin/perl
+
+print "pnm2bin.pl picture.pnm picture.bin\n";
+print "converts a picture in the format 240x320 PNM to the RGB-565 format necessary for Fernvale\n";
+
+my $infile=$ARGV[0] || "picture.pnm";
+my $outfile=$ARGV[1] || "picture.bin";
+
+open IN,"<$infile";
+my $header=<IN>; $header=~s/\s*$//;
+if($header=~m/^P[36]/)
+{
+  print "$header PNM Format detected. Good. Converting ...\n";
+  my $size=<IN>;
+  while($size=~m/^#/)
+  {
+    $size=<IN>;
+  }
+  if($size=~m/^(\d+) (\d+)/)
+  {
+    my $xsize=$1; my $ysize=$2;
+    print "Format: $1x$2\n";
+    my $value=<IN>;
+    open OUT,">$outfile";
+
+    foreach(0 .. ($ysize-1))
+    {
+      foreach(0 .. ($xsize-1))
+      {
+        my $r=($header eq "P6")?getc(IN):<IN>; $r>>=3;
+        my $g=($header eq "P6")?getc(IN):<IN>; $g>>=2;
+        my $b=($header eq "P6")?getc(IN):<IN>; $b>>=3;
+
+        my $p1=(($g&7)<<5) | ($b);
+        my $p2=($r<<3) | ($g>>3);
+        print OUT pack("C",$p1);
+        print OUT pack("C",$p2);
+      }
+    }
+    close OUT;
+  }
+}
+close IN;

From e5fedf58bf2d0a49de9e29344b20d79f4bb3fb8f Mon Sep 17 00:00:00 2001
From: thesourcerer8 <pg@futureware.at>
Date: Tue, 9 Jun 2015 17:35:48 +0200
Subject: [PATCH 2/4] Adding splashscreen to display a splashscreen on Fernvale

---
 splashscreen.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 splashscreen.sh

diff --git a/splashscreen.sh b/splashscreen.sh
new file mode 100644
index 0000000..cba9c9b
--- /dev/null
+++ b/splashscreen.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+echo "splashscreen.sh <imagefile>"
+echo Converting any 240x320 image to PNM
+convert $1 picture.pnm
+echo Converting from PNM to Fernvale Framebuffer format
+perl ./pnm2bin.pl picture.pnm picture.bin
+echo Telling fernvale to load the image
+echo "load 0x40000 153600" >/dev/fernvale
+echo Loading the image
+cat picture.bin >/dev/fernvale
+echo Displaying image
+echo "lcd run" >/dev/fernvale
+echo Done

From 4b7c8099608d96e1e7e9b405ac138956596cae89 Mon Sep 17 00:00:00 2001
From: thesourcerer8 <pg@futureware.at>
Date: Tue, 9 Jun 2015 17:36:29 +0200
Subject: [PATCH 3/4] Fixed reading P6 fileformat

---
 pnm2bin.pl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pnm2bin.pl b/pnm2bin.pl
index 499177c..4ced617 100644
--- a/pnm2bin.pl
+++ b/pnm2bin.pl
@@ -27,9 +27,9 @@
     {
       foreach(0 .. ($xsize-1))
       {
-        my $r=($header eq "P6")?getc(IN):<IN>; $r>>=3;
-        my $g=($header eq "P6")?getc(IN):<IN>; $g>>=2;
-        my $b=($header eq "P6")?getc(IN):<IN>; $b>>=3;
+        my $r=($header eq "P6")?unpack("C",getc(IN)):<IN>; $r>>=3;
+        my $g=($header eq "P6")?unpack("C",getc(IN)):<IN>; $g>>=2;
+        my $b=($header eq "P6")?unpack("C",getc(IN)):<IN>; $b>>=3;
 
         my $p1=(($g&7)<<5) | ($b);
         my $p2=($r<<3) | ($g>>3);

From b9cbae0b28056160a044fafb4e99bc8f23e4fefd Mon Sep 17 00:00:00 2001
From: thesourcerer8 <pg@futureware.at>
Date: Wed, 29 Jul 2015 10:38:06 +0200
Subject: [PATCH 4/4] Added SRAM infos

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index cf8fa54..6625268 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,8 @@ Memory Map
 | 0x10000000 | 0x1fffffff | 0x0fffffff | Memory-mapped SPI chip              |
 | ?????????? | ?????????? | ?????????? | ??????????????????????????????????? |
 | 0x70000000 | 0x7000cfff |     0xcfff | On-chip SRAM (maybe cache?)         |
+| 0x70008000 | 0x7000A400 | 0x00002400 | SRAM CODE area                      |
+| 0x7000A400 | 0x7000B000 | 0x00000C00 | SRAM DATA area                      |
 | ?????????? | ?????????? | ?????????? | ??????????????????????????????????? |
 | 0x80000000 | 0x80000008 |       0x08 | Config block (chip version, etc.)   |
 | 0x82000000 | 0x82d00000 | ?????????? | Modem system stuff                  |