[3199] | 1 | #! /usr/bin/python |
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| 2 | # |
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| 3 | # itccardtest.py |
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| 4 | # (c) 2007 George Farris <farrisg@shaw.ca> |
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| 5 | # |
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| 6 | # This program is free software; you can redistribute it and/or modify |
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| 7 | # it under the terms of the GNU General Public License as published by |
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| 8 | # the Free Software Foundation; either version 2 of the License, or |
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| 9 | # (at your option) any later version. |
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| 10 | # |
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| 11 | # This program is distributed in the hope that it will be useful, |
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | # GNU General Public License for more details. |
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| 15 | # |
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| 16 | # You should have received a copy of the GNU General Public License |
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| 17 | # along with this program; if not, write to the Free Software |
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| 18 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 19 | # |
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| 20 | |
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| 21 | |
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| 22 | # This documents and provides a demo of the protocol used to maniplulate |
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| 23 | # the ITC Print 2015 smart card reader, http://www.itcsystems.com/smart-card-stored.html |
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| 24 | # The 2015 is connected to the serial port of the PC to charge for things like |
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| 25 | # computer time usage, pay-for-print, cash registers sales, etc. |
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| 26 | # |
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| 27 | # The following description assumes that "Host" is the PC and Reader is the 2015 |
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| 28 | # |
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| 29 | # ----------------------------------------------------------------------------------------------------- |
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| 30 | # Poll card reader for indication of card insertion |
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| 31 | # ----------------------------------------------------------------------------------------------------- |
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| 32 | # Transmit from Host |
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| 33 | # Char line : <STX><NUL><SOH><SOH><ETX><NUL><BEL><EOT> |
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| 34 | # Hex translation: 0x02 0x00 0x01 0x01 0x03 0x00 0x07 0x04 |
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| 35 | # Receive from Reader |
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| 36 | # No card inserted |
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| 37 | # Char line : <STX><NUL><SOH>@<ETX><NUL>F<EOT> |
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| 38 | # Hex translation: 0x02 0x00 0x01 0x40 0x03 0x00 0x46 0x04 |
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| 39 | # Card Inserted |
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| 40 | # Char line : <STX><NUL><SOH>@<ETX><NUL>F<EOT> |
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| 41 | # Hex translation: 0x02 0x00 0x01 0x40 0x03 0x00 0x46 0x04 |
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| 42 | # ===================================================================================================== |
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| 43 | |
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| 44 | |
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| 45 | # ----------------------------------------------------------------------------------------------------- |
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| 46 | # Request current dollar(1) value stored on card |
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| 47 | # ----------------------------------------------------------------------------------------------------- |
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| 48 | # Transmit from Host |
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| 49 | # Char line : <STX><NUL><SOH>!<ETX><NUL>'<EOT> |
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| 50 | # Hex translation: 0x02 0x00 0x01 0x21 0x03 0x00 0x27 0x04 |
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| 51 | # Receive from Reader |
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| 52 | # Char line : <STX><NUL><SOH><NUL><NUL><NUL><NUL><NUL><NUL><DLE>h<SOH><ETX><NUL><DEL><EOT> |
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| 53 | # Hex translation: 0x02 0x00 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x10 0x68 0x01 0x03 0x00 0x7F 0x04 |
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| 54 | # [ Dollar value in this case 0x10 0x68 ] |
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| 55 | # [ 0x1068 = 4200 = $4.20 ] |
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| 56 | # [______________________________________] |
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| 57 | # ===================================================================================================== |
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| 58 | |
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| 59 | |
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| 60 | # ----------------------------------------------------------------------------------------------------- |
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| 61 | # Update Reader with new dollar value - must be less than what is stored on card |
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| 62 | # ----------------------------------------------------------------------------------------------------- |
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| 63 | # Transmit from Host |
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| 64 | # Char line : <STX><NUL><SOH>$<NUL><NUL><NUL><NUL><NUL><NUL><DLE><EOT><SOH><ETX><NUL>?<FF> |
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| 65 | # Hex translation: 0x02 0x00 0x01 0x24 0x00 0x00 0x00 0x00 0x00 0x00 0x10 0x04 0x01 0x03 0x00 0x3F 0x0C |
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| 66 | # [ Dollar value in this case 0x10 0x04 ] |
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| 67 | # [ 0x1004 = 4100 = $4.10 ] |
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| 68 | # [______________________________________] |
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| 69 | # |
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| 70 | # Receive from successful transaction from Reader |
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| 71 | # Char line : <STX><NUL><SOH><SYN><ETX><NUL><FS><BS> |
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| 72 | # Hex translation: 0x02 0x00 0x01 0x16 0x03 0x00 0x1C 0x08 |
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| 73 | # ===================================================================================================== |
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| 74 | |
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| 75 | |
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| 76 | # ----------------------------------------------------------------------------------------------------- |
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| 77 | # Eject card from Reader |
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| 78 | # ----------------------------------------------------------------------------------------------------- |
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| 79 | # Transmit from Host |
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| 80 | # Char line : <STX><NUL><SOH><SPACE><ETX><NUL>&<EOT> |
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| 81 | # Hex translation: 0x02 0x00 0x01 0x20 0x03 0x00 0x26 0x04 |
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| 82 | # Receive from Reader |
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| 83 | # Char line : <STX><NUL><SOH><SYN><ETX><NUL><FS><BS> |
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| 84 | # Hex translation: 0x02 0x00 0x01 0x16 0x03 0x00 0x1C 0x08 |
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| 85 | # ===================================================================================================== |
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| 86 | |
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| 87 | # (1) Currency can be set from the card reader keypad |
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| 88 | |
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| 89 | import sys, os, serial, string, binascii, time, tty, termios |
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| 90 | |
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| 91 | ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=1) |
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| 92 | #x = ser.read() #read one byte |
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| 93 | |
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| 94 | print "Main loop..." |
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| 95 | print " Waiting for card to be inserted..." |
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| 96 | ser.write(binascii.a2b_hex("0200010103000704")) |
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| 97 | s = ser.read(15) |
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| 98 | |
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| 99 | |
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| 100 | while binascii.b2a_hex(s) == "0200014003004604": |
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| 101 | time.sleep(2) |
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| 102 | #print binascii.b2a_hex(s) |
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| 103 | ser.write(binascii.a2b_hex("0200010103000704")) |
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| 104 | #print "Tx -> 0200010103000704" |
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| 105 | s = ser.read(15) |
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| 106 | #print "Rx -> %s" % binascii.b2a_hex(s) |
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| 107 | |
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| 108 | if binascii.b2a_hex(s) == "0200016c0300721c": |
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| 109 | print "" |
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| 110 | print " Card is inserted..." |
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| 111 | else: |
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| 112 | print " Card Error..." |
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| 113 | exit(0) |
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| 114 | |
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| 115 | # Get current value from card |
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| 116 | ser.write(binascii.a2b_hex("0200012103002704")) |
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| 117 | s1 = ser.read(20) |
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| 118 | |
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| 119 | #020001000000000000 125c 010300 7538 = $4.700 |
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| 120 | # ^^^^ 4700 in decimal |
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| 121 | #020001000000000000 0000 010300 0704 = $0.000 |
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| 122 | #020001000000000000 1068 010300 7F04 = $4.200 |
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| 123 | #020001000000000000 1004 010300 7F04 = $4.100 |
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| 124 | #print binascii.b2a_hex(s1[3:11]) |
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| 125 | print " %s%.2f" % ("Card valued at -> $",float(string.atoi(binascii.b2a_hex(s1[3:11]), 16))/1000) |
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| 126 | |
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| 127 | print " Press 'e' to eject the card..." |
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| 128 | # Need comms to contiune to keep card in machine. |
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| 129 | # This loop keeps the card in until it stops so basically the print |
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| 130 | # job can release the card after it is finished |
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| 131 | # The next three lines set the terminal up so one can poll the keyboard |
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| 132 | fd = sys.stdin.fileno() |
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| 133 | old_settings = termios.tcgetattr(fd) |
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| 134 | tty.setraw(sys.stdin.fileno()) |
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| 135 | |
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| 136 | while binascii.b2a_hex(s) == "0200016c0300721c": |
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| 137 | if sys.stdin.read(1) == 'e': |
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| 138 | break |
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| 139 | time.sleep(1) |
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| 140 | #print binascii.b2a_hex(s) |
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| 141 | ser.write(binascii.a2b_hex("0200010103000704")) |
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| 142 | #print "Tx -> 0200010103000704" |
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| 143 | s = ser.read(15) |
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| 144 | #print "Rx -> %s" % binascii.b2a_hex(s) |
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| 145 | # Reset the terminal after |
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| 146 | termios.tcsetattr(fd, termios.TCSADRAIN, old_settings) |
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| 147 | |
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| 148 | # Eject card |
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| 149 | ser.write(binascii.a2b_hex("0200012003002604")) |
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| 150 | s2 = ser.read(20) |
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| 151 | #print "Rx -> %s" % binascii.b2a_hex(s2) |
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| 152 | print " Ejecting card ..." |
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| 153 | |
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| 154 | # okay so we have a card with $4.70 on it, decrement it to $4.10 |
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| 155 | #ser.write(binascii.a2b_hex("0200012400000000000010040103003F0C")) |
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| 156 | #s2 = ser.read(20) |
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| 157 | #print binascii.b2a_hex(s2) |
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| 158 | ser.close() |
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| 159 | print "Goodbye..." |
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