# Script-specific parameters
HEX_OUTPUT_LINE_SIZE = 16
# Path to the python script that builds Deluge image from XML
-PY_PATH_BUILD_IMAGE = os.path.join(os.path.dirname(sys.argv[0]), 'tos-build-deluge-image')
+PATH_PY_BUILD_IMAGE = os.path.join(os.path.dirname(sys.argv[0]), 'tos-build-deluge-image')
# TinyOS serial communication parameters
-SERIAL_AMGROUP = 0
-SERIAL_AMID = 0xAB
-SERIAL_DATA_PAYLOAD_SIZE = 80
+SERIAL_AMGROUP = 0
+SERIAL_AMID = 0xAB
+SERIAL_DATA_LENGTH = 28 - 1 - 1 - 2 - 2
# Serial message types
-MSG_ERASE = 0
-MSG_WRITE = 1
-MSG_READ = 2
-MSG_REPROG = 5
-MSG_DISS = 6
+MSG_ERASE = 0
+MSG_WRITE = 1
+MSG_READ = 2
+MSG_REPROG = 5
+MSG_DISS = 6
-ERROR_SUCCESS = 0
-ERROR_FAIL = 1
+ERROR_SUCCESS = 0 # T2-compatible
+ERROR_FAIL = 1 # T2-compatible
# Deluge-specific parameters
-DELUGE_PKTS_PER_PAGE = 48
-DELUGE_PKT_PAYLOAD_SIZE = 23
-DELUGE_MAX_PAGES = 128
-DELUGE_METADATA_SIZE = 16 + 16 + 16 + 16 + 4 + 4 + 4 + 4 # Metadata size in binary
- # image
+DELUGE_MAX_PAGES = 128
+DELUGE_METADATA_OFFSET = 0
+DELUGE_METADATA_SIZE = 16
+DELUGE_IDENT_OFFSET = 16 + (2 * DELUGE_MAX_PAGES)
+DELUGE_IDENT_SIZE = 16 + 16 + 16 + 16 + 4 + 4 + 4 + 4 # Metadata size in binary
+ # image
class SerialReqPacket(tinyos.GenericPacket):
def __init__(self, packet = None):
return r
-# Returns the metadata (first 16 bytes of the image) plus the "ident"
-# (DELUGE_METADATA_SIZE bytes after CRC)
-def getMetaData(s, img_num):
+# Reads a portion from the image in the external flash
+def op_read(s, img_num, offset, length):
r = []
+
# Gets the metadata (first 16 bytes of the image)
- sreqpkt = SerialReqPacket((MSG_READ, img_num, 0, 16, []))
-
- if s.write_packet(SERIAL_AMGROUP, SERIAL_AMID, sreqpkt.payload()):
- packet = s.read_packet(SERIAL_AMGROUP, SERIAL_AMID)
- sreplypkt = SerialReplyPacket(packet[1])
- if sreplypkt.error == ERROR_SUCCESS:
- r.extend(sreplypkt.data)
-
- # Gets the "ident" portion of the image
- sreqpkt["offset"] = 16 + (2 * DELUGE_MAX_PAGES)
- sreqpkt["len"] = DELUGE_METADATA_SIZE
- if s.write_packet(SERIAL_AMGROUP, SERIAL_AMID, sreqpkt.payload()):
- packet = s.read_packet(SERIAL_AMGROUP, SERIAL_AMID)
- sreplypkt = SerialReplyPacket(packet[1])
- if sreplypkt.error == ERROR_SUCCESS:
- r.extend(sreplypkt.data)
-
- # Checks for valid CRC and timestamp
- if crc16(r[6:8]) == toInt(r[8:10]) and r[84:88] != [0xFF, 0xFF, 0xFF, 0xFF]:
- return r
- else:
- print "ERROR: Unable to retrieve image information"
+ sreqpkt = SerialReqPacket((MSG_READ, img_num, offset, length, []))
+ while True:
+ if sreqpkt['len'] > SERIAL_DATA_LENGTH:
+ sreqpkt['len'] = SERIAL_DATA_LENGTH
+
+ if s.write_packet(SERIAL_AMGROUP, SERIAL_AMID, sreqpkt.payload()):
+ packet = s.read_packet(SERIAL_AMGROUP, SERIAL_AMID)
+ sreplypkt = SerialReplyPacket(packet[1])
+ if sreplypkt.error == ERROR_SUCCESS:
+ r.extend(sreplypkt.data)
+ else:
+ r = None
+ break
else:
- print "ERROR: Unable to retrieve image information"
+ r = None
+ break
+
+ sreqpkt['offset'] = sreqpkt['offset'] + sreqpkt['len']
+ if sreqpkt['offset'] >= (offset + length):
+ break
+ sreqpkt['len'] = (offset + length) - sreqpkt['offset']
+
+ return r
+
+# Returns the metadata (first 16 bytes of the image) plus the "ident"
+# (DELUGE_IDENT_SIZE bytes after CRC)
+def getMetaData(s, img_num):
+ # Gets the metadata (first 16 bytes of the image)
+ r = op_read(s, img_num, DELUGE_METADATA_OFFSET, DELUGE_METADATA_SIZE)
+ # Gets the "ident" portion of the image
+ if r != None:
+ temp = op_read(s, img_num, DELUGE_IDENT_OFFSET, DELUGE_IDENT_SIZE)
+ if temp != None:
+ r.extend(temp)
+ else:
+ r = None
+
+ # Checks for valid CRC and image timestamp
+ if r != None:
+ if crc16(r[6:8]) == toInt(r[8:10]) and r[84:88] != [0xFF, 0xFF, 0xFF, 0xFF]:
+ return r
+
+ print "ERROR: Unable to retrieve image information"
return None
# Prints status of the image in the external flash
sreqpkt.offset = 0
while length > 0:
# Calculates the payload size for the current packet
- if length >= SERIAL_DATA_PAYLOAD_SIZE:
- sreqpkt.len = SERIAL_DATA_PAYLOAD_SIZE
+ if length >= SERIAL_DATA_LENGTH:
+ sreqpkt.len = SERIAL_DATA_LENGTH
else:
sreqpkt.len = length
sreqpkt.data = []
# Injects an image (specified by tos_image_xml) to an image volume
def op_inject(s, img_num, tos_image_xml):
+ # Checks for valid file path
+ try:
+ os.stat(tos_image_xml) # Checks whether tos_image_xml is a valid file
+ except:
+ print "ERROR: Unable to find the TOS image XML, \"%s\"" % tos_image_xml
+ return False
+ try:
+ os.stat(PATH_PY_BUILD_IMAGE) # Checks whether PATH_PY_BUILD_IMAGE is a valid file
+ except:
+ print "ERROR: Unable to find the image building utility, \"%s\"" % PATH_PY_BUILD_IMAGE
+ return False
+
# Gets status information of stored image
metadata = getMetaData(s, img_num)
print "Connected to Deluge nodes."
print "--------------------------------------------------"
# Creates binary image from the TOS image XML
- try:
- os.stat(tos_image_xml) # Checks whether tos_image_xml is a valid file
- os.stat(PY_PATH_BUILD_IMAGE) # Checks whether PY_PATH_BUILD_IMAGE is a valid file
- except:
- print "ERROR: Unable to create a binary image from the TOS image XML, \"%s\"" % tos_image_xml
- return False
- p = subprocess.Popen([PY_PATH_BUILD_IMAGE, "-v", str(version), "-i", str(img_num), tos_image_xml], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ p = subprocess.Popen([PATH_PY_BUILD_IMAGE, "-v", str(version), "-i", str(img_num), tos_image_xml], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
print p.stderr.read(),
print "--------------------------------------------------"
projects / tinyos-2.x.git / commitdiff