From c01514186967d9acee469cdd74ac1b8930351c6e Mon Sep 17 00:00:00 2001
From: Travis Goodspeed <travis@radiantmachines.com>
Date: Sun, 11 Nov 2018 12:24:20 -0500
Subject: [PATCH] Codeplug is now stored in regular flash, rather than info
 flash.  Fixes tuner in SBW-flashed devices.

---
 bin/goodwatch-txt2cpstr.py | 83 ++++++++++++++++++++++++++++++++++++++
 firmware/.gitignore        |  2 +
 firmware/Makefile          |  7 +++-
 firmware/codeplug.c        |  5 ++-
 4 files changed, 94 insertions(+), 3 deletions(-)
 create mode 100755 bin/goodwatch-txt2cpstr.py

diff --git a/bin/goodwatch-txt2cpstr.py b/bin/goodwatch-txt2cpstr.py
new file mode 100755
index 0000000..9e4edc3
--- /dev/null
+++ b/bin/goodwatch-txt2cpstr.py
@@ -0,0 +1,83 @@
+#!/usr/bin/python2
+
+## This quick and dirty tool converts a textfile of frequencies and
+## names into a GoodWatch codeplug, for storage in the firmware image.
+## Previously, we converted it to an Intel Hex image that loaded at
+## 0x1800, but this caused problems with mspdebug's tilib driver,
+## which can't seem to unlock info flash.
+
+import sys, argparse;
+
+
+def freqbytes(freq):
+    """Converts a frequency to three FREQ bytes.  Assumes 26MHz xtal."""
+    freqMult = (0x10000 / 1000000.0) / 26.0;
+    num=int(freq*1e6*freqMult);
+    FREQ2=(num>>16) & 0xFF;
+    FREQ1=(num>> 8) & 0xFF;
+    FREQ0= num      & 0xFF
+    return FREQ2, FREQ1, FREQ0;
+
+codeplugadr=0x1800;
+def handleline(line):
+    """Handles one line of the file."""
+    global codeplugadr;
+    if len(line)==0:   #Empty line.
+        return;
+    elif line[0]=='#': #Comment
+        return;
+    else:
+        # This is a real line.  First word ought to be the frequency,
+        # and the second word ought to be the name (8 characters or
+        # less).  Further words would be flags, but we ignore them for
+        # now.
+        LEN=12;
+        words=line.split();
+        freq=float(words[0]);
+        name=words[1];
+        namehex=name.encode('hex');
+        assert(len(name)<=8);
+        while len(namehex)<16:
+            namehex='20'+namehex;
+        FLAGS=0;
+        (FREQ2, FREQ1, FREQ0) = freqbytes(freq);
+
+        hexline="\"\\x%02x\\x%02x\\x%02x\\x%02x\" \"%s\"" % (
+            FLAGS, FREQ2,FREQ1,FREQ0, namehex.decode("hex")
+            );
+        
+        line="%s       //%s \n" %(
+            hexline,  name
+            );
+                
+        codeplugadr=codeplugadr+12;
+        return line;
+    
+def convertcodeplug(infile, outfile):
+    """Converts a codeplug textfile into an intel hex file for flashing."""
+    i=open(infile,'r');
+    o=open(outfile,'w');
+
+    o.write("/* Auto-generated codeplug string by goodwatch-txt2cpstr.py. */\n\n");
+    o.write("const char codeplugstr[]=\n");
+    
+    for line in i:
+        ihl=handleline(line.strip());
+        if(ihl!=None):
+            o.write(ihl);
+
+    o.write(";\n");
+    
+    i.close();
+    o.close();
+
+
+if __name__=='__main__':
+    parser = argparse.ArgumentParser(description='GoodWatch Codeplug Compiler')
+    parser.add_argument('-i','--input', help='Input Textfile');
+    parser.add_argument('-o','--output', help='Output Intel Hex File');
+    
+    args=parser.parse_args();
+
+    if args.input!=None and args.output!=None:
+        convertcodeplug(args.input, args.output);
diff --git a/firmware/.gitignore b/firmware/.gitignore
index 66230e3..efaa5f7 100644
--- a/firmware/.gitignore
+++ b/firmware/.gitignore
@@ -1,3 +1,5 @@
 config.h
 buildtime.h
 libs/assembler
+codeplugstr.c
+dmesg.bin
diff --git a/firmware/Makefile b/firmware/Makefile
index a537ca9..e8a75b6 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -78,7 +78,8 @@ CC = msp430-gcc -mmcu=cc430f6137 -Wall -I. -Os  $(addprefix -D, $(APPS_DEFINES))
 
 BSL = ../bin/cc430-bsl.py -r 38400 -p $(PORT)
 
-modules=rtcasm.o main.o lcd.o lcdtext.o rtc.o  keypad.o bcd.o apps.o applist.o adc.o ref.o \
+modules=rtcasm.o main.o lcd.o lcdtext.o rtc.o  keypad.o bcd.o apps.o\
+	applist.o adc.o ref.o codeplugstr.o \
 	sidebutton.o power.o uart.o monitor.o ucs.o buzz.o \
 	radio.o packet.o dmesg.o codeplug.o rng.o descriptor.o \
 	optim.o libs/assembler.o libs/morse.o
@@ -102,7 +103,7 @@ goodwatch.hex: goodwatch.elf
 	msp430-objcopy -O ihex goodwatch.elf goodwatch.hex
 
 clean:
-	rm -rf *~ */*~ *.hex *.elf *.o */*.o goodwatch githash.h buildtime.h html latex goodwatch.elf energytrace.png energytrace.txt
+	rm -rf *~ */*~ *.hex *.elf *.o */*.o goodwatch githash.h buildtime.h html latex goodwatch.elf energytrace.png energytrace.txt codeplugstr.c dmesg.bin
 erase:
 	$(BSL) -e
 sbwflash: goodwatch.hex codeplug.hex
@@ -123,6 +124,8 @@ run:
 
 codeplug.hex: codeplug.txt
 	../bin/goodwatch-txt2cp.py -i codeplug.txt -o codeplug.hex
+codeplugstr.c: codeplug.txt
+	../bin/goodwatch-txt2cpstr.py -i codeplug.txt -o codeplugstr.c
 flashcp: codeplug.hex
 	$(BSL) -Ef codeplug.hex
 
diff --git a/firmware/codeplug.c b/firmware/codeplug.c
index 90f66dd..7bfa2ed 100644
--- a/firmware/codeplug.c
+++ b/firmware/codeplug.c
@@ -11,8 +11,11 @@
 #include "codeplug.h"
 #include "radio.h"
 
+extern const char codeplugstr[];
+
 //! Array of codeplug entries in info flash.
-struct codeplugentry *codeplug = (struct codeplugentry*) 0x1800;
+struct codeplugentry *codeplug =
+  (struct codeplugentry*) codeplugstr; //formerly 0x1800
 
 static struct codeplugentry *selectedentry;