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This changes stm32 from using PENDSV to run NimBLE to use the MicroPython
scheduler instead. This allows Python BLE callbacks to be invoked directly
(and therefore synchronously) rather than via the ringbuffer.
The NimBLE UART HCI and event processing now happens in a scheduled task
every 128ms. When RX IRQ idle events arrive, it will also schedule this
task to improve latency.
There is a similar change for the unix port where the background thread now
queues the scheduled task.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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This requires that the event handlers are called from non-interrupt context
(i.e. the MicroPython scheduler).
This will allow the BLE stack (e.g. NimBLE) to run from the scheduler
rather than an IRQ like PENDSV, and therefore be able to invoke Python
callbacks directly/synchronously. This allows writing Python BLE handlers
for events that require immediate response such as _IRQ_READ_REQUEST (which
was previous a hard IRQ) and future events relating to pairing/bonding.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Using a semaphore (the previous approach) will only run the UART, whereas
for startup we need to also run the event queue.
This change makes it run the full scheduler hook.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Instead of having the stack indicate a "start", "data"..., "end", pass
through the data in one callback as an array of chunks of data.
This is because the upcoming non-ringbuffer modbluetooth implementation
cannot buffer the data in the ringbuffer and requires instead a single
callback with all the data, to pass to the Python callback.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Use the same `wait_for_event` in all tests that doesn't hold a reference to
the event data tuple and handles repeat events.
Also fix a few misc reliability issues around timeouts and sequencing.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Devices with RTC backup-batteries have been shown (very rarely) to have
incorrect RTC prescaler values. Such incorrect values mean the RTC counts
fast or slow, and will be wrong forever if the power/backup-battery is
always present.
This commit detects such a state at start up (hard reset) and corrects it
by reconfiguring the RTC prescaler values.
Signed-off-by: Damien George <damien@micropython.org>
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And rename SRC_HAL -> HAL_SRC_C and SRC_USBDEV -> USBDEV_SRC_C for
consistency with other source variables.
Follow on from 0fff2e03fe07471997a6df6f92c6960cfd225dc0
Signed-off-by: Damien George <damien@micropython.org>
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Prior to this change machine.mem32['foo'] (or using any other non-integer
subscript) could result in a fault due to 'foo' being interpreted as an
integer. And when writing code it's hard to tell if the fault is due to a
bad subscript type, or an integer subscript that specifies an invalid
memory address.
The type of the object used in the subscript is now tested to be an
integer by using mp_obj_get_int_truncated instead of
mp_obj_int_get_truncated. The performance hit of this change is minimal,
and machine.memX objects are more for convenience than performance (there
are many other ways to read/write memory in a faster way),
Fixes issue #6588.
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This will forcibly grab the pin back from the ADC if it has previously been
associated with it.
Fixes #5771.
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The file `$(BUILD)/firmware.bin` was used by the target `deploy-stlink` and
`deploy-openocd` but it was generated indirectly by the target
`firmware.dfu`.
As this file could be used to program boards directly by a Mass Storage
copy, it's better to make it explicitly generated.
Additionally, some target are refactored to remove redundancy and be more
explicit on dependencies.
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This gives a substantial speedup of the preprocessing step, i.e. the
generation of qstr.i.last. For example on a clean build, making
qstr.i.last:
21s -> 4s on STM32 (WB55)
8.9 -> 1.8s on Unix (dev).
Done in collaboration with @stinos.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Damien George <damien@micropython.org>
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Fixes issue #6583.
Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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For a board to have full configurability of the soft reset loop.
Signed-off-by: Damien George <damien@micropython.org>
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Running the update inside the soft-reset loop will mean that (on boards
like PYBD that use a bootloader) the same reset mode is used each
reset loop, eg factory reset occurs each time.
Signed-off-by: Damien George <damien@micropython.org>
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This is needed since -Wextra was added to the build in
bef412789ea93c521bd9c2dddc22b9b3484da574
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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This is needed since -Wextra was added to the build in
bef412789ea93c521bd9c2dddc22b9b3484da574
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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To help the GC collect this memory that's no longer needed after the test.
Signed-off-by: Damien George <damien@micropython.org>
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Also build user C modules as part of the stm32 CI.
Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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So that g++ is not needed to build a non-coverage unix variant.
Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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Add working example code to provide a starting point for users with files
that they can just copy, and include the modules in the coverage test to
verify the complete user C module build functionality. The cexample module
uses the code originally found in cmodules.rst, which has been updated to
reflect this and partially rewritten with more complete information.
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Support building .cpp files and linking them into the micropython
executable in a way similar to how it is done for .c files. The main
incentive here is to enable user C modules to use C++ files (which are put
in SRC_MOD_CXX by py.mk) since the core itself does not utilize C++.
However, to verify build functionality a unix overage test is added. The
esp32 port already has CXXFLAGS so just add the user modules' flags to it.
For the unix port use a copy of the CFLAGS but strip the ones which are not
usable for C++.
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Support C++ code in .cpp files by providing CXX counterparts of the
_USERMOD_ flags we have for C already. This merely enables the Makefile of
user C modules to use variables specific to C++ compilation, it is still up
to each port's main Makefile to also include these in the build.
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When SCR_QSTR contains C++ files they should be preprocessed with the same
compiler flags (CXXFLAGS) as they will be compiled with, to make sure code
scanned for QSTR occurrences is effectively the code used in the rest of
the build. The 'split SCR_QSTR in .c and .cpp files and process each with
different flags' logic isn't trivial to express in a Makefile and the
existing principle for deciding which files to preprocess was already
rather complicated, so the actual preprocessing is moved into
makeqstrdefs.py completely.
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Move the target from the ESP32 Makefile since that does what is needed
already, but also include files from user C modules as is done for the C
files.
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Preprocessed C++ code isn't different from C code when it comes to QSTR
instances so process it as well.
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When process_file() is passed a preprocessed C++ file for instance it won't
find any lines containing .c files and the last_fname variable remains
None, so handle that gracefully.
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If a port provides MICROPY_PY_URANDOM_SEED_INIT_FUNC as a source of
randomness then this will be used when urandom.seed() is called without
an argument (or with None as the argument) to seed the pRNG.
Other related changes in this commit:
- mod_urandom___init__ is changed to call seed() without arguments, instead
of explicitly passing in the result of MICROPY_PY_URANDOM_SEED_INIT_FUNC.
- mod_urandom___init__ will only ever seed the pRNG once (before it could
seed it again if imported by, eg, random and then urandom).
- The Yasmarang state is moved to the BSS for builds where the state is
guaranteed to be initialised on import of the (u)random module.
Signed-off-by: Damien George <damien@micropython.org>
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The same seed will only occur if the board is the same, the RTC has the
same time (eg freshly powered up) and the first call to this function (eg
via an "import random") is done at exactly the same time since reset.
Signed-off-by: Damien George <damien@micropython.org>
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For seeding the rng_get function is used, which is also the heart of
uos.urandom and pyb.rng, and is a hardware RNG where available.
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For seeding, the hardware RNG of the esp8266 is used.
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For seeding, the RNG function of the ESP-IDF is used, which is told to be a
true RNG, at least when WiFi or Bluetooth is enabled. Seeding on import is
as per CPython. To obtain a reproducible sequence of pseudo-random numbers
one must explicitly seed with a known value.
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Signed-off-by: Damien George <damien@micropython.org>
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Prior to this commit, the ADC calibration code was never executing because
ADVREGEN bit was set making the CR register always non-zero.
This commit changes the logic so that ADC calibration is always run when
the ADC is disabled and an ADC channel is initialised. It also uses the LL
API functions to do the calibration, to make sure it is done correctly on
each MCU variant.
Signed-off-by: Damien George <damien@micropython.org>
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When threading is enabled without the GIL then there can be races between
the threads accessing the globals dict. Avoid this issue by making sure
all globals variables are allocated before starting the threads.
Signed-off-by: Damien George <damien@micropython.org>
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Newer GCC versions are able to warn about switch cases that fall
through. This is usually a sign of a forgotten break statement, but in
the few cases where a fall through is intended we annotate it with this
macro to avoid the warning.
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