Introduce an asycii.c source file (modelled after metex14.c) which
implements support for the 16-byte protocol of the ASYC-II multimeter
chipset (RX only, when the PRINT button was pressed).
This fixes the following build issue on OSX:
Undefined symbols for architecture x86_64:
"_sr_drivers_init", referenced from:
_sr_init in backend.o
This closes bug #802.
This single object also contains the sr_drivers_init function, that will
always be referenced. That ensures that the drivers object files won't
be optimized out during static linking due to the fact that they are
not referenced directly.
This addresses (parts of) bug #802.
All callers of std_serial_dev_acquisition_stop() currently pass the same
callback for the dev_close_fn parameter as the dev_close callback of their
sr_dev_driver struct. Remove the dev_close_fn parameter and invoke the
drivers dev_close() callback directly. This simplifies the API and ensures
consistent behaviour between different drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
All callers of std_serial_dev_acquisition_stop() currently pass sdi->conn
for the serial parameter. And the other std_serial helper functions already
require that the conn field of the sr_driver_inst passed to the functions
points to the sr_serial_dev_inst associated with the device.
Modify std_serial_dev_acquisition_stop() to follow the same pattern and
remove the serial parameter. This simplifies the API and ensures consistent
behaviour between different drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Some of the standard helper functions take a log prefix parameter that is
used when printing messages. This log prefix is almost always identical to
the name field in the driver's sr_dev_driver struct. The only exception are
drivers which register multiple sr_dev_driver structs.
Instead of passing the log prefix as a parameter simply use the driver's
name. This simplifies the API, gives consistent behaviour between different
drivers and also makes it easier to identify where the message originates
when a driver registers sr_dev_driver structs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
A common task during device scan is to add the newly discovered devices to
the instance list of the driver. Currently this is done by each driver on
its own. This patch introduces a new helper function std_scan_complete()
which takes care of this. The function should be called at the end of a
driver's scan() callback before returning the device list.
Doing this with a helper function provides guaranteed consistent behaviour
among drivers and hopefully paves the way to moving more standard
functionality directly into the sigrok core.
Another common task that every driver has to do for each device instance is
to initialize the device's driver field. So this is done in the new helper
function as well.
All drivers that can make use of the new helper are updated.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The sigrok core needs a list of all available drivers. Currently this list
is manually maintained by updating a global list whenever a driver is added
or removed.
Introduce a new special section that contains the list of all drivers. The
SR_REGISTER_DEV_DRIVER() and SR_REGISTER_DEV_DRIVER_LIST() macro is used to
add drivers to this new list. This is done by placing the pointers to the
driver into a special section. Since nothing else is in this section it is
known that it is simply a list of driver pointers and the core can iterate
over it as if it was an array.
The advantage of this approach is that the code necessary to add a driver
to the list is completely contained to the driver source and it is no
longer necessary to maintain a global list. If a driver is built it will
automatically appear in the list, if it is not built in won't. This means
that the list is always correct, whereas the previous approach used ifdefs
in the global driver list file which could get out-of-sync with the actual
condition when the driver was built.
Any sr_dev_driver structs that are no longer used outside the driver module
are marked as static.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
std_init() checks if the pass in struct sr_dev_driver is non-NULL and
prints a error message and returns an error if it is NULL.
std_init() is exclusively called from driver init() callbacks for which the
core already checks if the struct sr_dev_driver is non-NULL before invoking
the callback. This means the check in std_init() will always evaluate to
false. So drop this check.
This also means that the prefix parameter that was used in the error
message is no longer needed and can be removed from the function signature.
Doing so will make the std_init() function signature identical to the
init() callback signature which will allow to directly use it as such.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The std_init() callback has the order of the first two paramters opposite
to the init() callback. This is primarily due to historical development.
Since the std_init() function is usually called from a driver's init()
callback aligning the order will allow direct register pass through rather
than having to swap them around. It also allow to eventually use the
std_init() function directly as the init() callback.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Every single hardware driver has the very same implementation of the
dev_list() callback. Put this into a helper function in the standard helper
library and use it throughout the drivers. This reduces boiler-plate code
by quite a bit.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
std_init() allocates a drv_context struct which needs to be freed by the
driver in its cleanup struct. But the vast majority of drivers does never
does this causing memory leaks.
Instead of addressing the issue by manually adding code to free the struct
to each driver introduce a new helper function std_cleanup() that takes
care of this. In addition to freeing the drv_context struct std_cleanup()
also invokes sr_dev_clear() which takes care of freeing all devices
attached to the driver.
Combining both operations in the same helper function allows to use
std_cleanup() as the cleanup callback for all existing drivers, which
reduces the amount of boiler-plate code quite a bit.
All drivers are updated to use the new helper function.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This makes the code shorter, simpler and more consistent, and also
ensures that the (same) debug messages are always emitted and the
packet.payload field is consistently set to NULL always, etc.
There is no status bit for RMS. We know about RMS if certain modes are
active. So, drop this superfluous variable.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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.
This fixes bug #674.
Introduce a new API function sr_session_stopped_callback_set()
which can be used to receive notification when a session stops
running. This allows applications to integrate libsigrok event
processing with their own main loop, instead of blocking in
sr_session_run().
The resource API provides a generic means for accessing resources
that are bundled with sigrok, such as device firmware files. Since
the manner of resource bundling is platform-dependent, users of
libsigrok may override the functions used to open, close and read
a resource. The default implementation accesses resources as files
located in one of the XDG data directories or a directory defined
at compile time.
Use in-memory buffers instead of temporary files. This avoids
the need for low-level I/O on the FD returned by g_mkstemp().
Refactor the code accordingly. Also plug a number of leaks and
tighten the error checking.
Introduce the sr_file_get_size() utility function to retrieve the
size of an open FILE stream. This is based on fseeko() followed by
ftello(), which are POSIX functions but quite portable in practice.
Since these calls operate on FILE streams instead of filenames, the
issue of filename encoding no longer arises.
Since Autoconf places some important feature flags only into the
configuration header, it is necessary to include it globally to
guarantee a consistent build.
Disallow polling for input/error and output-ready events at the
same time, and ensure only a single FD event source is installed.
Also, do not leak if the FD event source is removed by means
other than calling serial_source_remove().
On MinGW, two implementations of printf() are available: either
the Microsoft native one or a standard-conforming replacement from
gnulib. Since we build in C99 mode, headers such as <inttypes.h>
already select the standard-conforming variant. However, MinGW's
GCC does not seem to know about this and assumes MS-style format
syntax by default, which triggers a lot of wrong warnings.
Thus, on MinGW, explicitly decorate sr_log() with the gnu_printf
format flavor attribute. Also use GLib's printf replacements in
the logging implementation to make sure we link to a conforming
printf on any platform, independently of the compiler flags.
This gets rid of the mistaken -Wformat warnings for sr_log(), but
does not cover functions such as g_strdup_printf() which do not
explicitly specify the gnu_printf flavor in the format attribute.
This can be overcome by adding "-D__printf__=__gnu_printf__" to
CPPFLAGS, but it would be inappropriate for libsigrok to define
this on its own.
Get rid of the specicialized sr_err(), sr_warn(), etc. functions.
Instead, define the logging helper macros in terms of sr_log(),
and remove the sr_log() helper macro so that no function is hidden
by a macro anymore.
Decorate sr_log() with G_GNUC_PRINTF to detect varargs errors. This
unearthed a gazillion warnings all over the place which will have
to be fixed.
Also convert the helper macros to ISO C99 __VA_ARGS__ style instead
of relying on a GNU C extension. Paste the log prefix directly into
the format string to make this work.
Gerhard Sittig
Uwe Hermann
Aurelien Jacobs
Lars-Peter Clausen
Soeren Apel
Wolfram Sang
Daniel Elstner
Martin Ling
Stefan Brüns
Tilman Sauerbeck
Matthieu Gaillet
Bert Vermeulen