# @author Jonathan Hui <jhui@archedrock.com>
# @author David Gay
# @author Kevin Klues <klueska@cs.stanford.edu>
+# @author R. Steve McKown <rsmckown@gmail.com>
#
# $Revision$
# $Date$
#
+from __future__ import with_statement # Does this require too new a python?
+
+import os
+import re
from re import match
from sys import *
from xml.dom import *
return path
-NUM_SECTORS = 16
-SECTOR_SIZE = 65536
+HEADER_FILE = 'Stm25p.h'
+NUM_SECTORS = 0
+SECTOR_SIZE = 0
+
+def parseHeader( dotplatform ):
+ """ Return an ordered list of paths from the dotplatform file """
+ paths = []
+ inArray = False
+ p = re.compile('push\s*\(\s*@includes,\s*qw\s*\(');
+ q = re.compile('\)\s*\)\s*;');
+ try:
+ with open(dotplatform, 'r') as file:
+ for line in file:
+ path = line.strip()
+ if path:
+ if p.match(path):
+ inArray = True
+ elif q.match(path):
+ inArray = False
+ elif inArray == True:
+ paths.append(path)
+ return paths
+ except:
+ return None
+
+def findFile( paths, filename ):
+ """ Find the first occurrence of 'filename' in the list of paths given. """
+ for path in paths:
+ rpath = expand_path(path)
+ try:
+ for file in os.listdir(rpath):
+ if file == filename:
+ return rpath + '/' + filename
+ except OSError:
+ None
+ return None
+
+def findVars( path, vars ):
+ """ Finds values for the variables already present in vars from path """
+ inEnum = False
+ p = re.compile('enum\s.*{');
+ q = re.compile('}s*;');
+ r = re.compile('^\s*([A-Z0-9_]*)\s*=\s*([^,]*)');
+ with open(path, 'r') as file:
+ for line in file:
+ line = line.strip()
+ if line:
+ if p.match(line):
+ inEnum = True
+ elif q.match(line):
+ inEnum = False
+ elif inEnum == True:
+ m = r.search(line)
+ if vars.has_key(m.group(1)):
+ vars[m.group(1)] = m.group(2)
+
+paths = parseHeader(platformdir + '/.platform')
+if paths:
+ path = findFile(paths, HEADER_FILE)
+ if path:
+ enums = {}
+ enums["STM25P_NUM_SECTORS"] = 0
+ enums["STM25P_SECTOR_SIZE_LOG2"] = 0
+ findVars(path, enums)
+ NUM_SECTORS = int(enums["STM25P_NUM_SECTORS"])
+ SECTOR_SIZE = 2**int(enums["STM25P_SECTOR_SIZE_LOG2"])
+if NUM_SECTORS == 0 or SECTOR_SIZE == 0:
+ stderr.write( "tos-storage-stm25p: no valid Stm25p.h found.\n\t"
+ "Check @includes in the platform's .platform file\n" )
+ exit(2)
volumes = {}