pyinst: usb488.py annotate

annotate usb488.py @ 79:84f96c5fe791

Use different message ID that does not result in "Query UNTERMINATE" messages in the error log. Fix testsrq. Rename queryrsb to querystb as that matches the operating manual.

author	Daniel O'Connor <doconnor@gsoft.com.au>
date	Fri, 27 Sep 2024 16:53:43 +0930
parents	7386f2888508
children

rev	line source
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	1 #!/usr/bin/env python
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	2
7 813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	3 # Copyright (c) 2009
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	4 # Daniel O'Connor <darius@dons.net.au>. All rights reserved.
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	5 #
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	6 # Redistribution and use in source and binary forms, with or without
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	7 # modification, are permitted provided that the following conditions
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	8 # are met:
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	9 # 1. Redistributions of source code must retain the above copyright
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	10 # notice, this list of conditions and the following disclaimer.
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	11 # 2. Redistributions in binary form must reproduce the above copyright
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	12 # notice, this list of conditions and the following disclaimer in the
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	13 # documentation and/or other materials provided with the distribution.
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	14 #
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	15 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	18 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	25 # SUCH DAMAGE.
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	26 #
813e183cfd49 Add 2 clause BSDL. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	27
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	28 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	29 # Spec/info..
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	30 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	31 # http://www.usb.org/developers/devclass_docs/USBTMC_1_006a.zip
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	32 # http://svn.openmoko.org/developers/werner/ahrt/host/tmc/README
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	33 # http://www.home.agilent.com/agilent/redirector.jspx?action=ref&cname=AGILENT_EDITORIAL&ckey=1189335&lc=eng&cc=US&nfr=-35560.0.00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	34 # linux-2.6.29.3/drivers/usb/class/usbtmc.c
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	35 # http://sdpha2.ucsd.edu/Lab_Equip_Manuals/usbtmc_usb488_subclass_1_00.pdf
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	36 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	37
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	38 import time
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	39 import usb
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	40 from functools import reduce
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	41
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	42 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	43 # The usual SCPI commands are wrapped before being sent.
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	44 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	45 # Write:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	46 # Offset Field Size Value Description
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	47 # 0 MsgID 1 0x01 DEV_DEP_MSG_OUT
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	48 # 1 bTag 1 0x01 Varies with each transfer
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	49 # 2 bTagInverse 1 0xfe Inverse of previous field
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	50 # 3 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	51 # 4 TransferSize 4 0x06
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	52 # 5 .. 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	53 # 6 .. 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	54 # 7 .. 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	55 # 8 bmTransferAttr 1 0x01 1 == end of msg
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	56 # 9 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	57 # 10 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	58 # 11 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	59 # 12 Msg itself 1 0x2a '*'
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	60 # 13 1 0x49 'I'
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	61 # 14 1 0x44 'D'
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	62 # 15 1 0x4e 'N'
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	63 # 16 1 0x3f '?'
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	64 # 17 1 0x0a '\n'
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	65 # 18-19 Alignment 2 0x0000 Bring into 4 byte alignment
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	66 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	67 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	68 # Send a read request:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	69 # Offset Field Size Value Description
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	70 # 0 MsgID 1 0x02 REQUEST_DEV_DEP_MSG_IN
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	71 # 1 bTag 1 0x02 Varies with each transfer
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	72 # 2 bTagInverse 1 0xfd Inverse of previous field
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	73 # 3 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	74 # 4 TransferSize 4 0x64
9 a6b746654ae2 Fix comment mangle. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	75 # 5 .. 0x00
a6b746654ae2 Fix comment mangle. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	76 # 6 .. 0x00
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	77 # 7 .. 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	78 # 8 bmTransferAttr 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	79 # 9 Term char 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	80 # 10 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	81 # 11 Reserved 1 0x00
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	82
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	83 # No libusb versions of these available
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	84 USB_CLASS_APP_SPECIFIC = 254
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	85 USB_SUBCLASS_TMC = 3
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	86 USB_PROTOCOL_488 = 1
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	87
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	88 # USB488 message IDs
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	89 DEV_DEP_MSG_OUT = 1
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	90 REQUEST_DEV_DEP_MSG_IN = 2
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	91 DEV_DEP_MSG_IN = 2
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	92
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	93 # USB TMC control requests
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	94 INITIATE_ABORT_BULK_OUT = 1
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	95 CHECK_ABORT_BULK_OUT_STATUS = 2
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	96 INITIATE_ABORT_BULK_IN = 3
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	97 CHECK_ABORT_BULK_IN_STATUS = 4
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	98 INITIATE_CLEAR = 5
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	99 CHECK_CLEAR_STATUS = 6
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	100 GET_CAPABILITIES = 7
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	101 INDICATOR_PULSE = 64
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	102 # USB488
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	103 READ_STATUS_BYTE = 128
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	104 REN_CONTROL = 160
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	105 GO_TO_LOCAL = 161
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	106 LOCAL_LOCKOUT = 162
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	107
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	108 # Interface capability bits
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	109 IF_CAP_LISTEN_ONLY = 0x01
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	110 IF_CAP_TALK_ONLY = 0x02
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	111 IF_CAP_HAS_INDICATOR = 0x04
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	112
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	113 # Device capability bits
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	114 DEV_CAP_TERM_CHAR = 0x01
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	115
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	116 # USB488 interface capbility bits
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	117 USB488_IFCAP_TRIG = 0x01
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	118 USB488_IFCAP_GO_LOC = 0x02
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	119 USB488_IFCAP_488_2 = 0x04
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	120
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	121 # USB488 device capbility bits
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	122 USB488_DEVCAP_DT1 = 0x01
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	123 USB488_DEVCAP_RL1 = 0x02
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	124 USB488_DEVCAP_SR1 = 0x04
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	125 USB488_DEVCAP_SCPI = 0x08
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	126
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	127 # USBTMC status definitions
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	128 STATUS_SUCCESS = 0x01
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	129 STATUS_PENDING = 0x02
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	130 STATUS_FAILED = 0x80
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	131 STATUS_TRANSFER_NOT_IN_PROGRESS = 0x81
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	132 STATUS_SPLIT_NOT_IN_PROGRESS = 0x82
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	133 STATUS_SPLIT_IN_PROGRESS = 0x83
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	134
66 bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	135 # SCPI error/event queue status register bit
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	136 STATUS_EVE_QUEUE = 0x04
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	137
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	138 class USB488Device(object):
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	139 def __init__(self, vendor = None, product = None, serial = None, path = None):
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	140 """Search for a USB488 class device, if specified vendor,
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	141 product, serial and path will refine the search"""
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	142
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	143 busses = usb.busses()
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	144
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	145 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	146 # Search for the device we want
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	147 #
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	148 found = False
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	149 for bus in busses:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	150 for dev in bus.devices:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	151 # Skip ones that don't match
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	152 if vendor != None and dev.idVendor != vendor:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	153 continue
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	154 if product != None and dev.idProduct != product:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	155 continue
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	156 if serial != None and dev.idSerialNumber != serial:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	157 continue
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	158 if path != None and dev.filename != path:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	159 continue
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	160
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	161 # The libusb examples say you can check for device
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	162 # class and then open, however in that case you can't
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	163 # find the endpoint number which seems pretty useless
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	164 # unless you want to hard code everything.
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	165 for confidx in range(len(dev.configurations)):
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	166 for iface in dev.configurations[confidx].interfaces:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	167 for altif in iface:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	168 # Check if this is a USB488 capable interface
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	169 if altif.interfaceClass == USB_CLASS_APP_SPECIFIC and \
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	170 altif.interfaceSubClass == USB_SUBCLASS_TMC and \
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	171 altif.interfaceProtocol == USB_PROTOCOL_488:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	172 found = True
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	173 break
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	174 if found:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	175 break
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	176 if found:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	177 break
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	178 if found:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	179 break
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	180 if found:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	181 break
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	182 if not found:
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	183 raise BaseException("Could not find a suitable USB device")
57 19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	184
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	185 # Open the device and claim the USB interface that supports the spec
8 381ed6f3d2d7 Save handle after using it, makes the code look nicer. Daniel O'Connor <darius@dons.net.au> parents: 7 diff changeset	186 handle = dev.open()
381ed6f3d2d7 Save handle after using it, makes the code look nicer. Daniel O'Connor <darius@dons.net.au> parents: 7 diff changeset	187 handle.setConfiguration(dev.configurations[confidx].value)
381ed6f3d2d7 Save handle after using it, makes the code look nicer. Daniel O'Connor <darius@dons.net.au> parents: 7 diff changeset	188 handle.claimInterface(altif.interfaceNumber)
381ed6f3d2d7 Save handle after using it, makes the code look nicer. Daniel O'Connor <darius@dons.net.au> parents: 7 diff changeset	189 handle.setAltInterface(altif.alternateSetting)
381ed6f3d2d7 Save handle after using it, makes the code look nicer. Daniel O'Connor <darius@dons.net.au> parents: 7 diff changeset	190 self.dev = dev
381ed6f3d2d7 Save handle after using it, makes the code look nicer. Daniel O'Connor <darius@dons.net.au> parents: 7 diff changeset	191 self.handle = handle
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	192
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	193 # Get some info for humans
57 19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	194 try:
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	195 self.vendname = handle.getString(dev.iManufacturer, 1024)
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	196 except ValueError:
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	197 self.vendname = None
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	198 try:
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	199 self.prodname = handle.getString(dev.iProduct, 1024)
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	200 except ValueError:
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	201 self.prodname = None
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	202 try:
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	203 self.serial = handle.getString(dev.iSerialNumber, 1024)
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	204 except ValueError:
19045ad9f5f5 Make it more tolerant if we can't read strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	205 self.serial = None
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	206
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	207 # Determine the endpoints for each operation type
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	208 self.intrep = self.bulkinep = self.bulkoutep = None
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	209
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	210 for ep in altif.endpoints:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	211 if ep.type == usb.ENDPOINT_TYPE_INTERRUPT and \
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	212 ep.address & usb.ENDPOINT_IN == usb.ENDPOINT_IN:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	213 self.intrep = ep.address
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	214
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	215 if ep.type == usb.ENDPOINT_TYPE_BULK:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	216 if ep.address & usb.ENDPOINT_IN == usb.ENDPOINT_IN:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	217 self.bulkinep = ep.address
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	218 else:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	219 self.bulkoutep = ep.address
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	220 self.maxPacket = ep.maxPacketSize
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	221
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	222 # Required for 488.2 devices, optional otherwise
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	223 if self.intrep == None:
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	224 print("Can't find interrupt endpoint")
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	225
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	226 # Data from the device (mandatory)
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	227 if self.bulkinep == None:
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	228 raise BaseException("Can't find bulk-in endpoint")
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	229
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	230 # Data to the device (mandatory)
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	231 if self.bulkoutep == None:
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	232 raise BaseException("Can't find bulk-out endpoint")
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	233
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	234 self.tag = 1
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	235 #self.init()
66 bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	236
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	237 def init(self):
66 bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	238 # Flush out any pending data
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	239 self.initiateClear()
66 bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	240 # Perform dummy write/read otherwise the next read times out
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	241 try:
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	242 self.ask('*STB?', timeout = 0.001)
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	243 except usb.USBError:
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	244 pass
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	245 # Clear status register
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	246 for i in range(10):
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	247 self.write('*CLS')
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	248 if int(self.ask('*STB?')) & STATUS_EVE_QUEUE == 0:
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	249 break
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	250 else:
bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	251 raise BaseException('Unable to clear status register')
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	252
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	253 def __str__(self):
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	254 rtn = "Mfg: %s Prod: %s" % (self.vendname, self.prodname)
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	255 if self.serial != "":
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	256 rtn += " S/N: " + self.serial
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	257
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	258 return rtn
66 bf411c7f5e78 Perform a dummy write/read after initiateClear and check the event/error queue bit. Daniel O'Connor <doconnor@gsoft.com.au> parents: 65 diff changeset	259
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	260 def gettag(self):
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	261 tag = self.tag
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	262 self.tag = (self.tag + 1) % 255
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	263 if self.tag == 0:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	264 self.tag += 1
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	265 return tag
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	266
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	267 def write(self, data):
12 5ff9130cc953 This code isn't scope specific. Daniel O'Connor <darius@dons.net.au> parents: 11 diff changeset	268 """Send data (string) to the instrument"""
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	269
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	270 orddata = list(map(ord, data))
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	271 # The device needs a \n at the end, enfore this
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	272 if orddata[-1] != '\n':
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	273 orddata += [ord('\n')]
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	274 datalen = len(orddata)
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	275
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	276 # Build the packet
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	277 tag = self.gettag()
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	278 pkt = [ DEV_DEP_MSG_OUT, tag, ~tag & 0xff, 0x00,
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	279 datalen & 0xff, datalen >> 8 & 0xff, datalen >> 16 & 0xff,
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	280 datalen >> 24 & 0xff, 1, 0, 0, 0 ]
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	281
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	282 # Add the data
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	283 pkt = pkt + orddata
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	284
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	285 # Align to 4 bytes
58 0684a20cc5c3 Fix for Python 3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 57 diff changeset	286 alignlen = ((len(pkt) // 4) + 1) * 4
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	287 pkt = pkt + [0] * (alignlen - len(pkt))
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	288
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	289 # Split it up into maxPacket sized chunks and send..
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	290 # XXX; this is not correct, need a header for each one
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	291 while len(pkt) > 0:
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	292 chunk = pkt[0:self.maxPacket]
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	293 pkt = pkt[self.maxPacket:]
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	294
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	295 #print("Sending %d bytes of data: %s" % (len(chunk), chunk))
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	296 wrote = self.handle.bulkWrite(self.bulkoutep, chunk)
a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	297 if wrote != len(chunk):
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	298 raise BaseException("Short write, got %d, expected %d" % (wrote, len(chunk)))
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	299
23 876d951bbcc0 Redo timeout in a more sensible way (also change it to 100ms) Daniel O'Connor <darius@dons.net.au> parents: 12 diff changeset	300 def read(self, timeout = None):
5 51d1fc44a753 Add variable timeout for reads. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	301 """Read data from the device, waits for up to timeout seconds for each USB transaction"""
51d1fc44a753 Add variable timeout for reads. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	302
23 876d951bbcc0 Redo timeout in a more sensible way (also change it to 100ms) Daniel O'Connor <darius@dons.net.au> parents: 12 diff changeset	303 if timeout == None:
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	304 timeout = 1
59 dd27521002a5 Change default timeout to 500msec Daniel O'Connor <doconnor@gsoft.com.au> parents: 58 diff changeset	305
5 51d1fc44a753 Add variable timeout for reads. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	306 # Mangle into milliseconds
51d1fc44a753 Add variable timeout for reads. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	307 _timeout = int(timeout * 1000.0)
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	308
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	309 # Maximum we accept at once
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	310 # Was 2^31 - 1 but that seems to make things take too long to
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	311 # read (perhaps libusb tries to malloc it..)
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	312 datalen = 10240
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	313 data = []
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	314
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	315 while True:
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	316 # Ask the device to send us something
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	317 tag = self.gettag()
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	318 pkt = [ REQUEST_DEV_DEP_MSG_IN, tag, ~tag & 0xff, 0x00,
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	319 datalen & 0xff, datalen >> 8 & 0xff, datalen >> 16 & 0xff,
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	320 datalen >> 24 & 0xff, 0, 0, 0, 0]
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	321
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	322 # Send it
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	323 #print("Sending " + str(pkt))
5 51d1fc44a753 Add variable timeout for reads. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	324 wrote = self.handle.bulkWrite(self.bulkoutep, pkt, _timeout)
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	325 if wrote != len(pkt):
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	326 print("Short write, got %d, expected %d" % (wrote, len(pkt)))
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	327
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	328 #print("Reading..")
5 51d1fc44a753 Add variable timeout for reads. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	329 read = self.handle.bulkRead(self.bulkinep, datalen, _timeout)
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	330 #print("Read %s bytes: %s" % (len(read), str(read)))
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	331
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	332 if read[0] != DEV_DEP_MSG_IN:
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	333 raise BaseException("Unexpected Msg ID, got %s expected %d" % (read[0], DEV_DEP_MSG_IN))
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	334 if read[1] != tag:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	335 raise BaseException("Unexpected tag, got %d expected %d" % (read[1], tag))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	336 if read[2] != ~tag & 0xff:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	337 raise BaseException("Unexpected tag inverse, got %d expected %d" % (read[1], ~tag & 0xff))
0 a43a47dfc902 First stab at code that actually works! Daniel O'Connor <darius@dons.net.au> parents: diff changeset	338
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	339 actualdata = read[4] \| read[5] << 8 \| read[6] << 16 \| read[7] << 24
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	340 #print("Computed datalen is %d" % (actualdata))
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	341 data += read[12:12 + actualdata]
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	342 if read[8] & 0x01:
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	343 #print("Breaking out due to EOM")
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	344 break
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	345
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	346 # Stringify result for easier consumption
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	347 result = reduce(lambda x, y: x+y, list(map(chr, data)))
1 e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	348 # Trim off \n if present
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	349 if result[-1] == '\n':
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	350 result = result[0:-1]
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	351
e2089824735a Make the read support work properly & check what the device gives us. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	352 return result
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	353
ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	354 def ask(self, s, timeout = None):
67 98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	355 '''Wrapper to send a command and wait for a reply'''
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	356 self.write(s)
60 4558e5ccd775 Honour timeout passed into ask() Daniel O'Connor <doconnor@gsoft.com.au> parents: 59 diff changeset	357 return self.read(timeout = timeout)
55 ad5942d22f78 Use BaseException rather than strings. Daniel O'Connor <doconnor@gsoft.com.au> parents: 23 diff changeset	358
67 98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	359 def chkcmd(self, cmd):
98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	360 '''Wrapper to send a command and check for an error'''
98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	361 self.write(cmd)
98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	362 if int(self.ask('*STB?')) & STATUS_EVE_QUEUE != 0:
98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	363 self.write('*CLS')
98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	364 raise BaseException('Command failed')
98b9258c75b6 Add chkcmd helper to execute command check STB to see if it failed. Daniel O'Connor <doconnor@gsoft.com.au> parents: 66 diff changeset	365
11 f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	366 def isConnected(self):
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	367 """Check if the device is present"""
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	368
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	369 # libusb makes it very hard (at least on FreeBSD) to determine if we're still connected.
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	370 # This is a reasonable proxy..
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	371 try:
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	372 self.handle.getString(self.dev.iManufacturer, 100)
56 91b476ebc0f2 Run through 2to3 Daniel O'Connor <doconnor@gsoft.com.au> parents: 55 diff changeset	373 except USBError as e:
11 f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	374 return False
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	375
f588f5bc834a Add a method to determine if the device is still connected. Daniel O'Connor <darius@dons.net.au> parents: 10 diff changeset	376 return True
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	377
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	378 def getCapabilities(self):
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	379 '''Returns interface, device and USB488 capability bytes (see IF_CAP_, DEV_CAP_, USB488_IFCAP_* and USB488_DEVCAP_*)'''
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	380 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_INTERFACE, GET_CAPABILITIES, 0x18)
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	381 return res[4], res[5], res[14], res[15]
65 29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	382
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	383 def indicatorPulse(self):
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	384 '''Send an indicator pulse request'''
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	385 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_INTERFACE, INDICATOR_PULSE, 0x01)
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	386
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	387 def initiateClear(self):
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	388 '''Send request to clear all transfers and wait until the device reports it is done and clear stalls'''
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	389 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_INTERFACE, INITIATE_CLEAR, 0x01)
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	390 if res[0] == STATUS_SUCCESS:
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	391 while True:
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	392 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_INTERFACE, CHECK_CLEAR_STATUS, 0x02)
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	393 if res[0] != STATUS_PENDING:
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	394 break
29bcef559283 Add initiateClear and a few others and use it to clear buffers on setup. Daniel O'Connor <doconnor@gsoft.com.au> parents: 60 diff changeset	395 time.sleep(0.1)
69 7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	396 else:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	397 raise BaseException('INITIATE_CLEAR returned 0x%02x' % (res[0]))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	398 self.handle.clearHalt(self.bulkinep)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	399 self.handle.clearHalt(self.bulkoutep)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	400
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	401 def renControl(self):
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	402 '''Send enable remote control message'''
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	403 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_INTERFACE, REN_CONTROL, 1, 0xff)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	404 return res[0]
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	405
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	406 def getStatus(self):
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	407 '''Returns IEEE 488 status byte'''
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	408 tag = self.gettag()
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	409 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_INTERFACE, READ_STATUS_BYTE, 3, tag)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	410 if res[1] != tag:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	411 raise BaseException('Tag mismatch, got 0x%02x, expected 0x%02x' % (res[1], tag))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	412 if res[0] != STATUS_SUCCESS:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	413 raise BaseException('Unit returned invalid USBTMC status: %d' % (res[0],))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	414 return res[2]
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	415
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	416 def abortIO(self, tag, isout):
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	417 if isout:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	418 req = INITIATE_ABORT_BULK_OUT
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	419 chkreq = CHECK_ABORT_BULK_OUT_STATUS
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	420 ep = self.bulkoutep
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	421 name = 'out'
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	422 else:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	423 req = INITIATE_ABORT_BULK_IN
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	424 chkreq = CHECK_ABORT_BULK_IN_STATUS
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	425 ep = self.bulkinep
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	426 name = 'in'
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	427 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_ENDPOINT,
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	428 req, 2, value = tag, index = ep)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	429 print('Initiate abort returned ' + str(res))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	430 while True:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	431 res = self.handle.controlMsg(usb.ENDPOINT_IN \| usb.TYPE_CLASS \| usb.RECIP_ENDPOINT,
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	432 chkreq, 8, value = 0x00, index = ep)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	433 print('Check abort returned ' + str(res))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	434 if res[0] == STATUS_PENDING:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	435 print('Status pending for %s abort' % (name,))
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	436 time.sleep(1)
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	437 elif res[0] == STATUS_SUCCESS or res[0] == STATUS_TRANSFER_NOT_IN_PROGRESS:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	438 break
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	439 else:
7386f2888508 Make function more configurable Daniel O'Connor <doconnor@gsoft.com.au> parents: 67 diff changeset	440 raise BaseException('Invalid status reply to check abort %s 0x%02x' % (name, res[0]))

Mercurial > ~darius > hgwebdir.cgi > pyinst

annotate usb488.py @ 79:84f96c5fe791