summaryrefslogtreecommitdiff
path: root/tools/iio/iio_generic_buffer.c
AgeCommit message (Collapse)AuthorFilesLines
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-5/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-12tools: iio: iio_generic_buffer: make num_loops signedMartin Kelly1-1/+1
Currently, num_loops is unsigned, but it's set by strtoll, which returns a (signed) long long int. This could lead to overflow, and it also makes the check "num_loops < 0" always be false, since num_loops is unsigned. Setting num_loops to -1 to loop forever is almost working because num_loops is getting set to a very high number, but it's technically still incorrect. Fix this issue by making num_loops signed. This also fixes an error found by Smatch. Signed-off-by: Martin Kelly <mkelly@xevo.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 55dda0abcf9d ("tools: iio: iio_generic_buffer: allow continuous looping") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-05-20tools: iio: iio_generic_buffer: allow continuous loopingMartin Kelly1-5/+5
Sometimes it's useful to stream samples forever, such as when stress-testing a driver overnight to check for memory leaks or other issues. When the program receives a signal, it will gracefully cleanup, so it is still safe to terminate at any time. Add support for specifying a negative -c option, meaning that we should loop forever. To do so, we need to use a long long (instead of just long) for num_loops so that current code specifying num_loops greater than UNSIGNED_LONG_MAX doesn't break. Signed-off-by: Martin Kelly <mkelly@xevo.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-05-20tools: iio: iio_generic_buffer: fix types to matchMartin Kelly1-1/+4
Several types are mismatched and causing implicit conversions. Fix them up so the types match. Signed-off-by: Martin Kelly <mkelly@xevo.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2016-10-23tools: iio: iio_generic_buffer: drop unneeded parenthesesEva Rachel Retuya1-2/+2
Remove extra parentheses introduced in commit <73e176a tools: iio: iio_generic_buffer: add -A to force-enable all channels>. Suggested-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-10-23tools: iio: iio_generic_buffer: rename and change type of force variableEva Rachel Retuya1-4/+5
Replace the type of 'force' flag from int to bool and at the same time rename it to 'force_autochannels' for better readability. Suggested-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-10-23tools: iio: iio_generic_buffer: add -A to force-enable all channelsEva Rachel Retuya1-5/+12
If attribute/s is/are already enabled (by default or via scripts or manual interaction), issuing -a will fail to enable the channels thereby one has to manually disable the said attribute/s before proceeding with auto-enabling. Add a command-line option -A to force-activate all channels regardless of their current state. Suggested-by: Alison Schofield <amsfield22@gmail.com> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-09-22tools: iio: iio_generic_buffer: fix argument '?' optionMugunthan V N1-1/+1
When help ('?') option is passed to the command, the help text printed but not from '?' switch case of getopt_long() but as a invalid argument as below. Fix this by adding '?' to opt_String of getopt_long(). root@am437x-evm:~# ./iio_generic_buffer -? ./iio_generic_buffer: invalid option -- '?' Usage: generic_buffer [options]... Capture, convert and output data from IIO device buffer -a Auto-activate all available channels ... Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-08-29tools:iio:iio_generic_buffer: fix trigger-less modeGregor Boirie1-1/+1
Passing the trigger-less mode option on the command line causes iio_generic_buffer to fail searching for an IIO trigger. Fix this by skipping trigger initialization if trigger-less mode is requested. Technically it actually fixes: 7c7e9dad70 where the bug was introduced but as the window to the patch below that changes the context was very small let's mark it with that. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Fixes: deb4d1fdcb5af ("iio: generic_buffer: Fix --trigger-num option") Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-08-15tools: iio: iio_generic_buffer: initialize channel array pointerAlison Schofield1-1/+1
Uninitialized channel pointer causes segmentation fault when we call free(channel) during cleanup() with no channels initialized. This happens when you exit early for usage errors. Initialize the pointer to NULL when it is declared. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Cc: Daniel Baluta <daniel.baluta@gmail.com> Tested-by: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-11iio: generic_buffer: Fix --trigger-num optionCrestez Dan Leonard1-2/+2
Initialize trig_num to -1 and handle trig_num=0 as a valid id. Fixes: 7c7e9dad (iio: iio_generic_buffer: Add --trigger-num option) Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-29iio: iio_generic_buffer: Add --trigger-num optionCrestez Dan Leonard1-5/+29
Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-29iio: iio_generic_buffer: Add --device-num optionCrestez Dan Leonard1-18/+51
This makes it possible to distinguish between iio devices with the same name. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-29iio: iio_generic_buffer: Cleanup when receiving signalsCrestez Dan Leonard1-64/+108
This will clean (disable buffer/trigger/channels) when doing something like a CTRL-C. Otherwise restarting generic_buffer requires a manual echo 0 > buffer/enable This also cleanup up all the code freeing string buffers at the end of main. We initialize all pointers to NULL so that cleanup can all be done under a single error label. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-29tools: iio: Rename generic_buffer to iio_generic_bufferDaniel Baluta1-0/+581
This makes it clear that generic_buffer is an IIO tool and also complies with filename conventions in tools/iio. Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>