pyinst: usb488.py annotate

annotate usb488.py @ 75:576f112e0aba

Fix read timeout handling so it works over imperfect links.

author	Daniel O'Connor <doconnor@gsoft.com.au>
date	Fri, 27 Sep 2024 09:27:33 +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 @ 75:576f112e0aba