Author: duncan Date: Wed Nov 7 14:36:03 2007 New Revision: 10090 Log: Added a break when the device is found Added setvfd2 (include test code and dimming)
Added: branches/rel-1/freevo/contrib/developer/setvfd2 (contents, props changed) Modified: branches/rel-1/freevo/src/plugins/vfd.py Added: branches/rel-1/freevo/contrib/developer/setvfd2 ============================================================================== --- (empty file) +++ branches/rel-1/freevo/contrib/developer/setvfd2 Wed Nov 7 14:36:03 2007 @@ -0,0 +1,367 @@ +#!/usr/bin/python +# vim:expandtab:shiftwidth=4:tabstop=4: + +# Update a Shuttle's VFD display +# Jeremy James (jeremy <AT> durge.org) - June 2006 +# +# Requires python-usb (http://pyusb.berlios.de/) +# +# The Cypress CY7C63723C chip has three endpoints - we use EP1 to write to the VFD control chip +# +# Messages passed to PT6314 are 8 bytes at a time +# 4 bits Message Type +# Currently Known Types: +# 0x1 Clear (Data of 0x1 for full clear or 0x2 to just reset the text cursor) +# 0x3 Display Clock (Data of 0x3) +# 0x7 Display Icons (Data Icons to display with a byte storing 5 bit flags) +# 0x9 Display Text (Data is ASCII text to display, starting from current cursor position) +# 0xd Set Clock (Data is in zero-padded hex as <secs><mins><hours><dayofweek><day><month><year>) +# 4 bits Message Length (0-7) +# 7 Bytes Data (Unused bytes filled with zeros) +# +# History: +# 12/Jun/06 1.0 Initial Version +# 16/Jun/06 1.1 Added claiming of interface correctly + +import time +import pyusb +import sys + +# Device Constants +idVendor = 0x1308 # Shuttle Inc +idProduct = 0x0003 # VFD Module +usbIDs = [ (0x1308, 0x0003), (0x051c, 0x0005), (0x1308, 0xc001), ] +maxStringLength = 20 + +# Program Constants +sleepLength = 0.01 # Time to wait between sending messages +debug = 0 + +def getVFDDevice(): + "Return the VFD device" + + for bus in pyusb.busses(): + for dev in bus.devices: + #print "idVendor=%s idProduct=%s" % (dev.idVendor, dev.idProduct) + for (idVendor, idProduct) in usbIDs: + if dev.idVendor == idVendor and dev.idProduct == idProduct: + if debug: + print >>sys.stderr,"Found VFD on bus %s at device %s"%(bus.dirname,dev.filename) + return dev.open() + + print >>sys.stderr,"Error! Device not found!" + raise SystemExit,2 + +def sendData(dev,data): + "Send a piece of data to specified VFD device, retrying if necessary" + attempts = 3 + while attempts > 0: + try: + if debug: + print "Sending data %r"%(data,) + dev.controlMsg(0x21, # Message to Class Interface + 0x09, + data, + 0x0200, + 0x0001) # Endpoint 1 + return + except Exception,e: + attempts -= 1 + if debug: + print "Failed to send. Retrying..." + time.sleep(sleepLength) + + raise e + +def msg(msgtype, *msgdata): + assert msgtype >= 0 and msgtype <= 0xf + assert len(msgdata) <= 7 + + print 'msgtype=%s, msgdata=%s, len(msgdata)=%s' % (msgtype, msgdata, len(msgdata)) + + retval = chr((msgtype<<4)+len(msgdata)) + if len(msgdata) == 1 and type(msgdata[0]) == str: + retval += msgdata[0]+"\x00"*(7-len(msgdata[0])) + else: + retval += "".join([type(x) == int and chr(x) or x for x in msgdata]) + retval += "\x00"*(7-len(msgdata)) + return retval + +def clear(dev): + "Clear the display" + sendData(dev,msg(1,1)) + +def reset(dev): + "Reset the cursor position" + sendData(dev,msg(1,2)) + +def split(s, length, maxlength): + "Split a string into chunks, but no longer than maxlength" + if len(s) > maxlength: + print >>sys.stderr,"Warning! Truncating string longer than %d characters"%(maxlength,) + s = s[:maxlength] + s = s.center(maxlength) + out = [] + for x in range(0,len(s),length): + out.append(s[x:x+length]) + return out + +def message(dev,msgstring,cls=1): + "Update the display with a string, specifying if it should be cleared first" + + msgparts = split(msgstring, 7, maxStringLength) + + if cls: + clear(dev) + else: + reset(dev) + + for part in msgparts: + sendData(dev,msg(9,*part)) + +def clock(dev,settime=None): + "Show the clock, setting the time as necessary" + if not settime: + settime = time.localtime() + + sendData(dev,msg(0xd,time.strftime("%S%M%H0%w%d%m%y",settime).decode("hex"))) + sendData(dev,msg(3,3)) + +def volume(dev,level): + "Update the volume" + sendData(dev,msg(7,level)) + +def splitbitmask(s, length): + "Split the bitmask into chunks" + out = [] + for x in range(len(s)-length,-1,-length): + out.append(s[x:x+length]) + return out + +def icons(dev,bitmask): + "Update icons to be shown" + bitmask = bitmask.replace(" ","") + assert len(bitmask) == 20,"Bitmask should be 20 characters long" + parts = splitbitmask(bitmask,5) + sendData(dev,msg(7,*[int(x,2) for x in parts])) + +def test7(dev): + "Send control codes plus message type 9,11" + ty = 0x9 + ch = ord('!') + while True: + print "Enter a ctrl code:", + s = sys.stdin.readline() + if not s: + break; + s = s[:-1] + if s == "b": + if ty == 0x9: + ty = 0xb + else: + ty = 0x9 + print 'ty=%x' % ty + continue + elif s != "": + try: + n = int(s) + except ValueError: + print '"%s" invalid!' % (s) + continue + print 'n=%s ty=%x c=%s "%s"' % (n, ty, ch, chr(ch)) + sendData(dev,msg(1,n,1)) + else: + print 'ty=%s, c=%s "%s"' % (ty, ch, chr(ch)) + time.sleep(sleepLength*3) + sendData(dev,msg(ty, ch)) + ch = ch + 1 + +def test6(dev): + "Send control codes plus message type 9,11" + nr = 0 + ty = 0x9 + ch = ord('!') + while True: + print "Enter a ctrl code:", + s = sys.stdin.readline() + if not s: + break; + s = s[:-1] + if s == "": + print 'nr=%s ty=%x c=%s "%s"' % (nr, ty, ch, chr(ch)) + sendData(dev,msg(ty, ch)) + ch = ch + 1 + if ch >= 127: + ch = ord('!') + elif s == "b": + if ty == 0x9: + ty = 0xb + else: + ty = 0x9 + print 'ty=%x' % ty + continue + else: + try: + nr = int(s) + except ValueError: + print '"%s" invalid!' % (s) + continue + print 'nr=%s 0x%x' % (nr, nr) + sendData(dev,msg(1,nr)) + +def test5(dev): + "Just send cursor codes" + while True: + print "Enter a ctrl code:", + s = sys.stdin.readline() + if not s: + break; + s = s[:-1] + try: + n = int(s) + except ValueError: + print '"%s" invalid!' % (s) + continue + print '"%s" n=%s' % (s, n) + sendData(dev,msg(1,n,1)) + +def test4(dev): + "Message type 11 test" + # seems to only write 10 characters + sendData(dev,msg(11,ord('a'),ord('b'),ord('c'),ord('d'),ord('e'),ord('f'),ord('g'))) + time.sleep(1) + sendData(dev,msg(11,ord('h'),ord('i'),ord('j'),ord('k'),ord('l'),ord('m'),ord('n'))) + +def test3(dev): + "Test to see what other message can display" +# 0x1 Clear (Data of 0x1 for full clear or 0x2 to just reset the text cursor) +# 0x3 Display Clock (Data of 0x3) +# 0x7 Display Icons (Data Icons to display with a byte storing 5 bit flags) +# 0x9 Display Text (Data is ASCII text to display, starting from current cursor position) +# 0xd Set Clock (Data is in zero-padded hex as <secs><mins><hours><dayofweek><day><month><year>) +# 0x1 does cursor tricks +# 0xb displays text, but in a different way + + # tried with --test and --clear + for x in [0x2, 0x4, 0x5, 0x6, 0x8, 0xa, 0xb, 0xc, 0xe, 0xf]: + for y in range(32,32+20): + print chr(7), + sendData(dev,msg(x,y)) + time.sleep(1) + +def test2(dev): + "Encoding test seems to be latin1" + + out = [] + for x in range(208,208+20): + out.append(chr(x)) + msg=''.join(out) + message(dev,msg) + +def test(dev): + "Display everything" + + message(dev,"ABCDEFGHIJKLMNOPQRST") + icons(dev,"11111111111111101100") + +def usage(): + "Display command line usage" + + print "Display information on a Shuttle's VFD" + print "Usage: %s [options]"%(sys.argv[0],) + print + print "Options:" + print " -m <message> : Display a message" + print " -t / --time : Show the time" + print " -c / --clear : Clear the display" + print " -v <volume> : Set the volume betwen 0 and 12" + print " --test : Test display" + print " --test2 : Test display" + print " --test3 : Test display" + print " --test4 : Test display" + print " --test5 : Test display" + print " --test6 : Test display" + print " --test7 : Test display" + print " -i <bitmask> : Set icons to be displayed" + print + print "Icons (add together to make bitmask):" + print " 10000 00000 00000 00000 : Clock" + print " 01000 00000 00000 00000 : Radio" + print " 00100 00000 00000 00000 : Music" + print " 00010 00000 00000 00000 : CD/DVD" + print " 00001 00000 00000 00000 : Television" + print + print " 00000 10000 00000 00000 : Camera" + print " 00000 01000 00000 00000 : Rewind" + print " 00000 00100 00000 00000 : Record" + print " 00000 00010 00000 00000 : Play" + print " 00000 00001 00000 00000 : Pause" + print + print " 00000 00000 10000 00000 : Stop" + print " 00000 00000 01000 00000 : Fast Forward" + print " 00000 00000 00100 00000 : Reverse" + print " 00000 00000 00010 00000 : Repeat" + print " 00000 00000 00001 00000 : Mute" + print + print "Volume:" + print " 00000 00000 00000 00000 : Level 0 (Off) " + print " 00000 00000 00000 00001 : Level 1" + print " ..." + print " 00000 00000 00000 01100 : Level 12 (Maximum)" + print + +def main(): + import getopt + + try: + opts,args = getopt.getopt(sys.argv[1:],"hm:tcv:i:", + ["help","message=","time","clear","volume=","icons=","test","test2","test3","test4","test5","test6","test7"]) + except getopt.GetoptError: + usage() + raise SystemExit,1 + + if not opts or args: + usage() + raise SystemExit,1 + + dev = getVFDDevice() + + dev.claimInterface(1) + + try: + for o, a in opts: + if o in ("-h", "--help"): + usage() + raise SystemExit,1 + if o in ("-m", "--message"): + message(dev,a) + if o in ("-t", "--time"): + clock(dev) + if o in ("-c", "--clear"): + clear(dev) + if o in ("-v", "--volume"): + if not a.isdigit() or int(a) < 0 or int(a) > 12: + print "Error! Invalid volume level %r! (should be between 0 and 12)"%(a,) + raise SystemExit,1 + volume(dev,int(a)) + if o in ("-i", "--icons"): + icons(dev,a) + if o == "--test": + test(dev) + if o == "--test2": + test2(dev) + if o == "--test3": + test3(dev) + if o == "--test4": + test4(dev) + if o == "--test5": + test5(dev) + if o == "--test6": + test6(dev) + if o == "--test7": + test7(dev) + finally: + dev.releaseInterface() + +if __name__ == "__main__": + main() Modified: branches/rel-1/freevo/src/plugins/vfd.py ============================================================================== --- branches/rel-1/freevo/src/plugins/vfd.py (original) +++ branches/rel-1/freevo/src/plugins/vfd.py Wed Nov 7 14:36:03 2007 @@ -511,20 +511,21 @@ # There seem to exist at least two different vendor/product ID # combinations for the Shuttle VFD. Thus, we have to check all # of them, until a valid one is found. - #self.vendorID = 4872 # Shuttle Inc - #self.productID = 0003 # VFD Module + #self.idVendor = 4872 # Shuttle Inc + #self.idProduct = 0003 # VFD Module - # self.usbIDs is a list of tuples (vendorID, productID) + # self.usbIDs is a list of tuples (idVendor, idProduct) self.usbIDs = [ (0x1308, 0x0003), (0x051c, 0x0005), (0x1308, 0xc001), ] self.maxStringLength = 20 self.sleepLength = 0.015 self.vfd = None for bus in pyusb.busses(): for dev in bus.devices: - for (self.vendorID, self.productID) in self.usbIDs: - if dev.idVendor == self.vendorID and dev.idProduct == self.productID: + for (self.idVendor, self.idProduct) in self.usbIDs: + if dev.idVendor == self.idVendor and dev.idProduct == self.idProduct: self.vfd = dev.open() _debug_('Found VFD on bus %s at device %s' % (bus.dirname,dev.filename), DINFO) + break if not self.vfd: _debug_("Cannot find VFD device", DERROR) ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. 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