Commit graph

169 commits

Author SHA1 Message Date
Martí Bolívar
9c92baa73f devicetree: use edt.pickle more
Consolidate creation of edtlib.EDT objects from a build directory's
devicetree into one place by loading it from build/zephyr/edt.pickle
everywhere. A previous commit creates edt.pickle from gen_defines.py.

In addition to probably speeding things up slightly by not reparsing
the devicetree, the main benefit of this approach is creating a single
point of truth for the bindings directories and warnings
configuration, meaning we don't have to worry about them getting out
of sync while being passed around between devicetree creation and
usage time.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-07-23 09:19:45 -05:00
Maureen Helm
8c7cef6da0 runners: Implement --erase option in pyocd runner
Implements the common runner option to mass erase before flashing in the
pyocd runner.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2020-07-23 10:30:47 +02:00
Stephanos Ioannidis
3322489d22 config: Rename TEXT_SECTION_OFFSET to ROM_START_OFFSET
The `TEXT_SECTION_OFFSET` symbol is used to specify the offset between
the beginning of the ROM area and the address of the first ROM section.

This commit renames `TEXT_SECTION_OFFSET` to `ROM_START_OFFSET` because
the first ROM section is not always the `.text` section.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-07-09 14:02:38 -04:00
Torsten Rasmussen
ef3c5e5516 cmake: west: invoke west using same python as rest of build system
When running CMake, then Python3 will be used.
This is detected through FindPython3, with a preference for using the
python or python3 in path, if any of those matches the required Python
minimal version in Zephyr.

It is also possible for users to specify a different Python, as example
by using:
`cmake -DPYTHON_PREFER=/usr/bin/python3.x`

However, when running `west` as native command, then west will be
invoked on linux based on the python defined in:
`west` launcher, which could be: `#!/usr/bin/python3.y`

Thus there could be mismatch in Pythons used for `west` and the python
used for other scripts.

This is even worse on windows, where a user might experience:
```
>.\opt\bin\Scripts\west.exe --version
Traceback (most recent call last):
  File "C:\Python37\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  ...
  File "C:\Python37\lib\socket.py", line 49, in <module>
    import _socket
ImportError: Module use of python38.dll conflicts with this version of
Python.
```

when testing out a newer Python, but the python in path is still a 3.7.

By importing `west` into zephyr_module.py and by using, as example
`python -c "from west.util import west_topdir; print(topdir())"`
we ensure the same python is used in all python scripts.

Also it allows the user to control the python to use for west.

It also ensures that the west version being tested, is also the version
being used, where old code would test the version imported by python,
but using the west in path (which could be a different version)

If the west version installed in the current Python, and west invocation
is using a different Python interpreter, then an additional help text
is printed, to easier assist users with debugging.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-07-08 23:23:04 -04:00
bb8277962d scripts: bossac: automatically pull the flash offset from the config
BOSSAC uses a bootloader, so pull the flash address from DeviceTree or
the config and use if the version of BOSSAC supports offsets.

Signed-off-by: Michael Hope <mlhx@google.com>
2020-07-02 08:23:03 -04:00
4ac195e0af scripts: bossac: add support for bossac 1.9.1
BOSSA 1.7 has built-in bootloader offset handling while 1.9.1
requires the user to supply the offset.  Add support for both by
sniffing the help output and warn the user if the flags needs adding.

Related to #22062

Signed-off-by: Michael Hope <mlhx@google.com>
2020-07-02 08:23:03 -04:00
Torsten Rasmussen
13642fe013 cmake: west: west flash dependencies in sync with CMake flash target
This commit creates a list of a phony targets for each runner, that is:
`west_flash_depends`, `west_debug_depends`, and so on.
Those targets has identical dependencies as CMake runner target.
flash, debug, debugserver, attach targets.

As example `ninja flash` correctly ensures dependencies are taken into
consideration before calling `west flash`.

Unfortunately, calling `west flash` directly would not re-run the flash
dependencies, cause `west flash` would only build the default CMake
target.

Now, `west flash` calls the phony `west_flash_depends` target, ensuring
all deps are up-to-date before flashing (unless --skip-rebuild is given)

The same is true for the other mentioned runners.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-07-01 07:58:10 -04:00
Martí Bolívar
6e4c2b9be9 scripts: clean up west build/flash/debug help
Just changes to the west help output; no functional changes expected.

Make option descriptions lowercase to match the argparse module's
conventions. When multiple sentences are required, move them to parser
prolog/epilog or argument group description sections.

Clarify some points that have confused multiple people.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-06-29 08:47:04 -04:00
Martí Bolívar
bd491fbb97 runners: promote --erase to common option
Move the --erase option to core.py from nrfjprog.py and jlink.py,
where it is currently supported.

Using the RunnerCaps option enforcement mechanism introduced earlier,
enforce that it will only be given to runners that support it.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-06-25 12:14:25 +02:00
Martí Bolívar
f8e8e9229d runners: enforce RunnerCaps via create() indirection
Require all implementations to provide a do_create(), a new
ZephyrBinaryRunner abstract class method, and make create() itself
concrete.

This allows us to enforce common conventions related to individual
runner capabilities as each runner provides to the core via
RunnerCaps.

For now, just enforce that:

- common options related to capabilities are always added, so runners
  can't reuse them for different ends

- common options provided for runners which don't support them emit
  sensible error messages that should be easy to diagnose and support

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-06-25 12:14:25 +02:00
Martí Bolívar
7b93bd54d4 scripts: runners: clean up super() calls
We can just call super() instead of super(MyClassName, self). The
original extra verbosity is likely due to old habits of mine from
Python 2 which are no longer necessary, but got copy/pasted around.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-06-25 12:14:25 +02:00
Daniel Leung
2959ed35c1 west: runners/misc-flasher: fix passing extra args to script
The argparse module, by default, complains about non-defined
arguments. This prevents passing arguments prefixed with '-'
or '--' to the target script (e.g. calling another Python
script using argparse). This changes the misc-flasher script
so that any arguments not recognized by west will be passed
to the target script.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2020-06-24 08:51:53 -04:00
Grzegorz Szymaszek
0a3e3958df west: runners: stm32flash: convert start_addr to string (concatenation)
The start_addr attribute of Stm32flashBinaryRunner is an integer. It
must be converted to a string before being concatenated with a colon and
the (already converted to a string) size to erase or write.

Signed-off-by: Grzegorz Szymaszek <gszymaszek@short.pl>
2020-06-19 15:18:08 +02:00
Jordan Yates
9c39a93014 west: runners: jlink: Disable DAP after flashing
Disables the Debug-Access-Port of the microcontroller after flashing.
If not disabled, the DAP consumes ~1.6mA until the debugger disables it
or a hard power cycle is applied.

The DAP is typically automatically disabled after flashing, but if other
instances of JLink software are running (not connected), it will not be.

The added command resets the value of the CTRL/STAT register of the DAP.
This clears the CSYSPWRUPREQ and CDBGPRWUPREQ bits, leaving the debug
hardware free to power off the appropriate hardware. In no way does it
hinder the ability to later connect to the device for debugging.

This resolves the jlink portion of #26139

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
2020-06-17 19:26:54 +02:00
Wayne Ren
7cbe5c3e18 scripts: add unit test for mdb runner
add unit test for mdb runner

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2020-06-11 10:02:11 -04:00
Wayne Ren
1506db5098 scripts: add the runner script for metaware debugger
* add the runner script for metaware debugger(mdb).
* mdb is required for SMP case
* mdb also can provides a GUI interface

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
2020-06-11 10:02:11 -04:00
Martí Bolívar
0b5c58fcab scripts: runners: handle uninstalled dependencies
Catch ImportError whenever a non-standard module import fails from any
runners that do one. Complain at runtime about it if the user actually
needs the runner.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-05-09 13:05:48 +02:00
Henrik Brix Andersen
3c2984d4a9 scripts: west: add CANopen flash runner
Add west flash runner for program download via CANopen.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2020-05-08 10:53:42 +02:00
Brendon Le Comte
cddea0a7c8 Runners: Add Bossac Runner OSX compatibility
OSX compatibility added bossac runner.
Linux behvaiour is unchanged.
Window is now explicity mentioned as incompatible

Signed-off-by: Brendon Le Comte <brendon.lecomte@gmail.com>
2020-04-30 18:12:27 +02:00
Alexey Brodkin
0d5416acc4 runners: openocd: Reset target before running Elf
In case of flashing (which is typically used with OpenOCD)
we do reset of the target after programming application binary
in the non-volatile memory.

In case of Elf execution we need to reset the target before
loading Elf sections so that we might be sure our target
is in sane & expected state before we start execution.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2020-04-24 19:35:25 +02:00
Julien D'Ascenzio
fb2421441d west: zcmake.py: manage STATIC type of CMakeCache.txt file
The variables with the STATIC type aren't read.
The commit 877fc59e30 introduce the read of CMAKE_PROJECT_NAME
which could be defined in CMakeCache.txt file like that:

CMAKE_PROJECT_NAME:STATIC=MyProject

If STATIC type is not managed, the CMAKE_PROJECT_NAME isn't set and
CMake is always force to run again

Signed-off-by: Julien D'Ascenzio <julien.dascenzio@paratronic.fr>
2020-04-20 15:44:09 +02:00
Martí Bolívar
d6f5f51f37 scripts: fix west zephyr-export error handling
Fix two issues:

1. The script assumes the default CMake generator build tool
   platform is installed. On Linux at least, that's Make instead
   of Ninja, but Make might not be installed since Zephyr recommends
   Ninja. On Windows, that might be VS Code or nmake.

   Calling `cmake -P pristine` instead of `cmake --build <path>
   --target pristine` has the benefit of removing the dependency on a
   build command, and hence the default generator is not relevant.

2. It also assumes run_cmake() returns control, and therefore pristine
   can be run.

   However, if the cmake command fails hard (say, due to issue #1
   before this patch), run_cmake() throws an exception instead.

   Fix that by trying to run the pristine target in a finally block
   instead, and adding some manual cleanup steps in case the build
   system is in a bad state and pristine fails too.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Signed-off-by: Torsten Rasmussen <torsten.rasmussen@nordicsemi.no>
2020-04-16 07:46:18 -04:00
Martí Bolívar
877fc59e30 scripts: west build: handle missing CMAKE_PROJECT_NAME
If there is an error in the CMake configuration phase (this can happen
if a script run using execute_process() fails, for instance), the
build system is incompletely generated and future attempts to run
'west build' will fail. This manifests in the following error:

    Error: could not find CMAKE_PROJECT_NAME in Cache

Whenever we see that the cache exists but this variable is missing,
let's just force CMake to run again. This avoids the error in my
testing and is a bit more user friendly. I've seen multiple users
asking what to do in this situation; the answer is always "just build
it again", so we might as well do it for them.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-04-11 15:04:04 -04:00
Carles Cufi
6656214af2 boards: nrf52_pca10040: Rename to nrf52dk_nrf52832
The board name for the nRF52 DK, so far known as nrf52_pca10040, is
renamed to nrf52dk_nrf52832.  Its documentation and all references
to its name in the tree are updated accordingly. Overlay and
configuration files specific to this board are also renamed, to
match the new board name.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2020-04-06 13:09:07 +02:00
Torsten Rasmussen
3074a7a498 cmake: Relocating Zephyr Unittest CMake package.
Fixes: #23872

Relocating Zephyr Unittest CMake package to ensure that
HINTS ${ZEPHYR_BASE} in
find_package(ZephyrUnittest HINTS ${ZEPHYR_BASE}) works correctly when
the package has not been exported to CMake user package registry.

This ensure that the new package functionality is fully backwards
compatible on systems where the package is not exported and ZEPHYR_BASE
is set.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-03-31 10:00:15 -04:00
Torsten Rasmussen
e819fa46cd scripts: west-commands: Updates needed when removing ZEPHYR_BASE env
This commit includes the following fixes in order to remove environment
setting of ZEPHYR_BASE is west extension commands.

- Build command
  west build --pristine will now use the ZEPHYR_BASE variable found
  in CMakeCache.txt in the build folder.

  This ensures that the pristine command is executed from the same
  Zephyr that was used for compilation.

- Board command
  The west boards command no longer sets Zephyr base before invoking
  cmake -P cmake/boards.cmake

  Instead boards.cmake uses find_package(Zephyr) to ensure consistent
  behavior with Zephyr samples, so that the detection of Zephyr base is
  uniform across CMake commands.

  It also changes BOARD_ROOT_SPACE_SEPARATED to BOARD_ROOT in order to
  be consistent with existing user documentation.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-03-27 16:23:46 +01:00
Torsten Rasmussen
e85cfe4554 cmake: West extension command for Zephyr config package registration
This command make it possible to use west for first time registration
of a Zephyr config package in CMake.

To register Zephyr as a CMake config package, invoke:
west zephyr-export

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-03-27 16:23:46 +01:00
Martí Bolívar
a5268773a6 scripts: run_common: don't dump stack on unavailable runner
Originally reported in #23539 (though that seems to have been another
problem), west flash and friends are dumping stack when used with an
unconfigured runner.

Let's just promote the warning about this to an error. The idea that
this ever could have worked without explicit support has not worked
out in practice, to my knowledge.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-03-25 19:43:30 +01:00
Martí Bolívar
34a59168d5 build: clean up west build
The header printed at the beginning of every west build is kind of
annoying. Let's remove it and just print the application source
directory at cmake time instead. The build directory and board are
already printed there, anyway, and that's all IDE users will see.

Let's clean up the BOARD to make it say "board" instead. That matches
the west build --board option name a bit more closely and is still
legible.

Likewise, let's not print any west build messages if we're just
incrementally recompiling. That's noisy.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-03-10 14:53:28 +02:00
Mikkel Jakobsen
98eb316bdf scripts: build.py: make _sanity_check() case insensitive on windows
When checking build directory against cache on windows, certain
corner cases can end up failing the comparison because of case
difference on an otherwise identical path. This can be avoided
by ignoring case on windows.

Signed-off-by: Mikkel Jakobsen <mikkel.aunsbjerg@prevas.dk>
2020-03-10 12:19:35 +02:00
Martí Bolívar
67d8f755e2 runners: misc-flasher: hotfix
The 'command' command line argument for this flasher is now being
overridden by common code, which attaches the west subcommand name to
this.

Let's just hotfix this by renaming the argument in misc-flasher.
We can revisit the boundary between run_common.py arguments and
runners package arguments after the release.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-03-04 21:48:09 +02:00
Martí Bolívar
24ce05c841 doc: improve west flash help for dfu-util
Try to make it clearer what's going on here.

Suggested-by: Lucian Copeland <hierophect@gmail.com>
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-03-03 09:30:32 +02:00
Martí Bolívar
dc0948424e scripts: run_common: fix command line --hex-file and friends
This is yet another bug introduced by the move to runners.yaml.
Sigh. I should have tested this better.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-29 19:38:49 +02:00
Martí Bolívar
f8cb3d4d53 scripts: run_common: rename 'args' to 'user_args'
This will also make the reason for a following bug fix easier to see.

Update a comment block to include all the work that needs doing.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-29 19:38:49 +02:00
Martí Bolívar
97dbda2088 scripts: run_common: rename unknown_args to user_runner_args
This makes its true value clearer, and will make a later bug fix patch
easier to understand.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-29 19:38:49 +02:00
Martí Bolívar
6dab163cad scripts: fix west sign when ZEPHYR_BASE is unset
Due to cleanups in west targeted at getting rid of zephyr-specific
code, extension commands can no longer rely on ZEPHYR_BASE being set
in the calling environment at import time (it's still set at run()
time for now, though, to keep west build working).

Add a new helper to make dealing with this easier from west sign.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-20 09:06:09 +02:00
Martí Bolívar
eb95bed552 scripts: west_commands: fix argument handling with runners.yaml
Refactor the code to support the new runners.yaml file created by the
build system.

Compared to fishing around in the CMake cache, this makes it trivial
to put all the command line arguments to a runner-based command on
equal footing, regardless of if they're defined in the runners package
proper or defined in run_common.py.

This allows board.cmake files to do things like this:

   board_set_runner_args(foo
     --bin-file=${PROJECT_BINARY_DIR}/my-signed.bin)

While at it, make some other cleanups:

- Stop using the obsolete and deprecated west.cmake module while we're
  here in favor of the zcmake.py module which was added to Zephyr a long
  time ago. Yikes. I had forgotten this was still here.

- Stop using west.util's wrap function in favor of raw use of
  textwrap. The west function splits on hyphens, which is breaking
  runner names like "em-starterkit".

- Clean up the --context output a bit

Fixes: #22563
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-20 09:06:09 +02:00
Alexey Brodkin
5bd2857c73 board: arc: Switch to generic OpenOCD runner
We used to use "em-starterkit" runner for ARC which is
basically heavy-modified "openocd" runner tweaked to
use GDB for loading and starting Elf files.

Now when loading and running Elf files is possible with generic
"openocd" runner we may us it. So we switch and get rid of
"em-starterkit" as well since we no longer need it.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2020-02-13 10:45:44 +02:00
Alexey Brodkin
83b346edef runners: opeocd: Allow loading Elf-files
In some cases especially for on-going development & debugging of real
application it might be useful to load and run not from flash but
from RAM in that case there's one catch: we cannot reset the board
after loading memory with our app.

That's because:
 a) RAM we use might be either cleared on reset or might enter
    unpredictable state with portion of previously loaded data
    being corrupted.
 b) Reset vector most probably still point to ROM/flash and so
    our current application won't be executed on reset.

So instead of "run reset" command of OpenOCD we'll use
"resume 0x12345678". Where 0x12345678 is our application's
entry-point (which BTW may very well not match beginning of
the .text section or link base).

Now to extract the entry-point we need our application's zephyr.elf
and since we already have a requirement for Elf we may use it for
loading because OpenOCD does it perfectly fine moreover automatically
detecting loaded image type (binary, hex, Elf etc).

And to use that nice feature just add "--use-elf" to west's
command-line for boards that use "openocd" runner. Like that:
----------->8--------------
west flash --use-elf
----------->8--------------

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2020-02-13 10:45:44 +02:00
Alexey Brodkin
5a4237ed3b west: openocd: Allow to specify FTDI instance by its serial number
To be used in setups with multiple boards attached to the same one
host we need to have an ability to specify precisely which JTAG probe
to use for a particular board.

This is done by passing "ftdi_serial XXX" command to OpenOCD.
And the serial ("XXX") is supposed to be passed from higher level,
typically via west's options. And exactly for that we add another
"openocd" runner option "--serial=XXX" which sets
a Tcl's "_ZEPHYR_BOARD_SERIAL" variable that later gets passed
to OpenOCD's "ftdi_serial" command.

See more discussions on the matter here:
https://github.com/zephyrproject-rtos/zephyr/issues/22543

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2020-02-13 10:45:44 +02:00
Martí Bolívar
cea6e3f17a scripts: west_commands: fix help text for flash
The 'command' variable points at a python command object, not a
string. Take its name so the help text for west flash -h correctly
says 'flash' instead of 'debug'.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-06 23:06:04 -05:00
Martí Bolívar
1c80d79fdd scripts: west_commands: skip bossac tests unless on linux
That's the only platform the tool is available.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-02-06 08:34:43 -06:00
Andrei Emeltchenko
d44d986a03 west: Add signing support using the rimage tool from SOF
This way "west sign" can be used for signing images.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2020-02-05 10:43:25 -05:00
Frank Li
59208ac13b runners: pyocd: add --tool-opt parameter
add --tool-opt to support more pyocd parameter

Signed-off-by: Frank Li <lgl88911@163.com>
2020-02-03 13:32:38 -05:00
Henrik Brix Andersen
deccb71f1d west: commands: sign: look for imgtool.py in path
If 'imgtool' is not found in PATH look for 'imgtool.py' before bailing
out.

This allows adding the mcuboot/scripts directory to PATH and have
'west sign -t imgtool' automatically locate the 'imgtool.py' script.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2020-01-30 14:17:07 -05:00
Kuba Sanak
c0e31e7d71 flashing: don't give bossac offset parameter unless explicitly provided
This fixes a problem which appeared after bossac version was downgraded
to 1.7 which no longer accepts the -o/--offset parameter. Now the offset
is fed to bossac executable only if it's explicitly provided and not by
default.

Signed-off-by: Kuba Sanak <contact@kuba.fyi>
2020-01-28 12:53:13 -06:00
Rihards Skuja
f59b92b3ee runners: openocd: don't throw when no config is provided
In some cases the config is already provided for us e.g. when setting
OPENOCD_NRF5_SUBFAMILY. Also it looks like config was always supposed to
be optional (there are checks for it on do_run()).

Signed-off-by: Rihards Skuja <rihardssk@mikrotik.com>
2020-01-23 10:38:57 -05:00
Flavio Ceolin
661035a6b8 west: runners: stm32: Remove unecessary assignment
msg_text is unconditionally assigned later and this inital value is
never used.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2020-01-22 17:37:41 -05:00
Martí Bolívar
60db6a6e2f scripts: runners: nrfjprog: sort SNR list before prompting
This guarantees muscle memory will work over multiple runs when the
same boards are connected. (The "nrfjprog --help" output for --ids
does not guarantee an order.)

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-01-16 10:20:39 -05:00
Martí Bolívar
e4768ad7e7 scripts: runners: nrfjprog: restrict when we guess snr
Right now, the nrfjprog runner will prompt the user for which board to
use if there are multiple possibilities and the --snr command line was
not given to specify one ahead of time.

Tweak this so it only happens if standard input is connected to a
terminal. This should avoid stalling the process on board farms when
this runner is used in automation.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-01-16 10:20:39 -05:00