Daniel Elstner [Tue, 22 Dec 2015 14:52:40 +0000 (15:52 +0100)]
sysclk-lwla: Attempt initialization three times
This is a desperate measure to improve the success rate of device
initialization even after it got into a bad state. Combine this
with a reduced USB timeout (1 second) so that if it fails, it fails
quickly. Also ignore USB errors from the initial dummy read of the
device test ID.
Daniel Elstner [Sat, 5 Dec 2015 16:47:52 +0000 (17:47 +0100)]
sysclk-lwla: Work around short transfer quirk
Detect whether the FX2 firmware of the LWLA device exhibits the
short transfer bug. If so, work around the problem by limiting
reads to at most 64 bytes at a time. This slows down the memory
read after acquisition quite noticably, but makes the device
usable even in adverse conditions.
Daniel Elstner [Sat, 5 Dec 2015 09:06:15 +0000 (10:06 +0100)]
sysclk-lwla: Skip unused registers in status poll
Reduce the number of long registers read in bulk during status
polling from 10 to 5. The LWLA1034 driver used to do that already
in an earlier iteration, which was then changed to be more like
the original vendor software. The reason for bringing it back now
is that it reduces the response size to 40 bytes, which works
around the spurious 64 byte limit bug in the FX2 firmware of the
LWLA devices.
Stefan Brüns [Sat, 28 Nov 2015 15:52:08 +0000 (16:52 +0100)]
input/wav: initialize channel list before going into ready state
The sr_input_dev_inst_get API documentation guarantees an input is fully
initialized as soon as the device instance is returned. An sdi
implementation should not set sdi_ready any earlier.
Marcus Comstedt [Sun, 8 Nov 2015 16:37:34 +0000 (17:37 +0100)]
bindings: Fix doc extraction for enums
The source file enum.hpp was not found when not building in the source
tree. Also, extraction of the brief description did not work correctly
when there was additional XML markup inside the <para> element.
Hannu Vuolasaho [Fri, 27 Nov 2015 18:10:14 +0000 (20:10 +0200)]
korad-kaxxxxp: Workaround for Korad device bug
The sixth character from ISET? is read and discarded. If the device is
turned off and on again, this won't be there and causes 10 ms delay in
every ISET? Luckily, this value isn't queried that often. To get the
sixth byte, the *IDN? command has to be issued before ISET?.
Stefan Brüns [Thu, 26 Nov 2015 02:07:47 +0000 (03:07 +0100)]
output/analog: track and free memory for float conversion buffer
==18779== 800,000 bytes in 196 blocks are definitely lost in loss record 29 of 29
==18779== at 0x4C29110: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==18779== by 0x4E635C3: receive (analog.c:319)
==18779== by 0x40870B: datafeed_in (session.c:316)
==18779== by 0x4E59D4E: sr_session_send (session.c:1201)
==18779== by 0x4E59F8B: sr_session_send (session.c:1159)
==18779== by 0x4E62595: send_chunk (wav.c:234)
==18779== by 0x4E62A06: process_buffer (wav.c:290)
==18779== by 0x40954A: load_input_file_module (input.c:123)
==18779== by 0x4097AB: load_input_file (input.c:157)
==18779== by 0x40531E: main (main.c:288)
Stefan Brüns [Thu, 26 Nov 2015 02:04:39 +0000 (03:04 +0100)]
session: free memory for datafeed callbacks, reported by valgrind
==17549== 32 (16 direct, 16 indirect) bytes in 1 blocks are definitely lost in loss record 22 of 39
==17549== at 0x4C29110: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==17549== by 0x5359200: g_malloc (in /usr/lib64/libglib-2.0.so.0.4200.2)
==17549== by 0x536EE2D: g_slice_alloc (in /usr/lib64/libglib-2.0.so.0.4200.2)
==17549== by 0x5370165: g_slist_append (in /usr/lib64/libglib-2.0.so.0.4200.2)
==17549== by 0x4E595C3: sr_session_datafeed_callback_add (session.c:512)
==17549== by 0x409527: load_input_file_module (input.c:111)
==17549== by 0x4097AB: load_input_file (input.c:157)
==17549== by 0x40531E: main (main.c:288)
Stefan Brüns [Thu, 26 Nov 2015 01:30:42 +0000 (02:30 +0100)]
session: fix use after free of session->devs as reported by valgrind
==7478== Invalid write of size 8
==7478== at 0x4E59182: sr_session_dev_remove_all (session.c:302)
==7478== by 0x4E591CD: sr_session_destroy (session.c:265)
==7478== by 0x4095D9: load_input_file_module (input.c:143)
==7478== by 0x4097AB: load_input_file (input.c:157)
==7478== by 0x40531E: main (main.c:288)
==7478== Address 0x7877eb8 is 88 bytes inside a block of size 96 free'd
==7478== at 0x4C2A37C: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==7478== by 0x4E5F454: sr_input_free (input.c:573)
==7478== by 0x4095C3: load_input_file_module (input.c:140)
==7478== by 0x4097AB: load_input_file (input.c:157)
==7478== by 0x40531E: main (main.c:288)
Daniel Elstner [Fri, 27 Nov 2015 13:32:28 +0000 (14:32 +0100)]
sysclk-lwla: Cut down on size_t overuse
Do not use size_t for values whose width is defined by the device,
not the host. Also don't use size_t for simple indices with known
small range, unless type compatibility considerations apply.
Daniel Elstner [Sun, 22 Nov 2015 16:45:54 +0000 (17:45 +0100)]
sysclk-lwla: Implement support for LWLA1016
Refactor the sysclk-lwla driver to separate the generic logic from
the model-specific implementation. Based on this, implement support
for the SysClk LWLA1016 device.
Uwe Hermann [Sat, 21 Nov 2015 19:27:25 +0000 (20:27 +0100)]
sr_usb_find(): Increase the 'bus' limit to 255.
On some systems it can happen that the USB 'bus' number is a lot larger
than 64, but sr_usb_find() currently errors out if it is > 64.
Example:
Bus 250 Device 006: ID 1ab1:04ce 1ab1 DS1000Z Series[...]
Increase that limit so that the code will work everywhere. This bus number
is queried via libusb_get_bus_number() which returns an uint8_t, so we're
limiting to 255 here.
Daniel Elstner [Mon, 2 Nov 2015 13:30:24 +0000 (14:30 +0100)]
build: Set CXXFLAGS when building Python module
Set both CFLAGS and CXXFLAGS when executing setup.py to build
the Python bindings. Newer versions of distutils/setuptools have
apparently started to pick up the latter when compiling C++.
Daniel Elstner [Sun, 1 Nov 2015 20:40:28 +0000 (21:40 +0100)]
build: Match up Python headers with interpreter version
Check for either Python 2 or Python 3 header files depending on
the version of the Python interpreter. Also require the module
version to exactly match the interpreter version.
With the current driver API and the corresponding session event
handling, it is not possible to destroy and then re-create an
event source with the same key within the same main loop iteration.
The next generation driver API will fix this problem. But for now,
just change the driver to make do without that sort of thing. Also
increase the I/O timeout to 100 ms to be safer in the event of all
kind of delays the OS environment may induce.
Daniel Elstner [Sat, 31 Oct 2015 09:19:51 +0000 (10:19 +0100)]
sysclk-lwla: Read full 64 bit of capture duration field
Evaluate all 64 bit of the duration field in the capture status
record. Although unlikely in practical use, due to compression
it is possible for the duration in ms to exceed 32 bit.
Daniel Elstner [Fri, 30 Oct 2015 14:07:25 +0000 (15:07 +0100)]
zip: Provide fallback if zip_discard() is unavailable
zip_discard() was introduced in libzip 0.11, which some systems
do not have yet. Provide a fallback replacement for zip_discard(),
and reduce the requirement to libzip 0.10 again.
Daniel Elstner [Thu, 29 Oct 2015 21:53:25 +0000 (22:53 +0100)]
C++: Declare std::default_delete friend as struct
std::default_delete<> is originally defined as struct, not class.
This does not really make much of a difference, but some compilers
complain when the struct/class tag is not consistent across all
declarations of the type.
Daniel Elstner [Thu, 29 Oct 2015 21:39:44 +0000 (22:39 +0100)]
build: Use common SWIG defines for Python and Java
Make the Python and Java bindings use the same set of preprocessor
macros for the SWIG parsing stage, taken from a make variable. Add
G_GNUC_{BEGIN,END}_IGNORE_DEPRECATIONS to that set.
Daniel Elstner [Sun, 25 Oct 2015 02:44:55 +0000 (03:44 +0100)]
sysclk-lwla: Read test word twice during initialization
During initialization of the LWLA1034, read the 64-bit test word
twice and verify the result of the second read only. This better
matches what the original vendor software does.
Daniel Elstner [Sun, 25 Oct 2015 01:26:44 +0000 (02:26 +0100)]
sysclk-lwla: Clarify function of registers 10B0 to 10BC
Apparently, these four registers form an interface for indirect
access to another internal 64 bit wide memory. This is likely the
same memory as that accessed by the bulk transfer commands 7 and 8.
Hannu Vuolasaho [Wed, 21 Oct 2015 16:04:37 +0000 (19:04 +0300)]
Support for regulation status and fix for mysterious M
Added support for SR_CONF_REGULATION which returns value for CH1
Also VELLEMAN LABPS3005D (only device currently supported) sends single
'M' character in beginning of return value, which is specially discarded.
Daniel Elstner [Mon, 26 Oct 2015 06:29:50 +0000 (07:29 +0100)]
Java: Avoid dangerous writes via casted pointers
Writing to an object through a pointer of incompatible type is
really evil. Even when the data size matches, it is still a
violation of strict aliasing rules.
Replace all instances by direct casts of the value, without the
unnecessary and dangerous indirection.