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When using long cables for sensors on onewire e.g. ds18b20, the current
default timings are too optimistic, leading to bus failures and CRC errors.

Stable results are achieved with the timings given by
https://www.analog.com/en/technical-articles/1wire-communication-through-software.html

The timing of the onewire module was way too fast when reading.  This
commit adopts read timings as recommended in Maxim application note 126:
6 us (pulse) / 9 us (sample) / 55 us (bit slot).  See also:
https://www.analog.com/en/technical-articles/1wire-communication-through-software.htmlSigned-off-by: Damien George <damien@micropython.org>

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact)
from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <support@github.com>

Bumps [actions/setup-python](https://github.com/actions/setup-python) from
4 to 5.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <support@github.com>

Bumps [actions/github-script](https://github.com/actions/github-script)
from 6 to 7.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](https://github.com/actions/github-script/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-type: direct:production
  update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <support@github.com>

In "cat" mode a "$output_file.hash" file is checked to see if the hash of
the new output is the same as the existing, and if so the output file isn't
updated.

However, it's possible that the output file has been deleted but the hash
file has not.  In this case the output file is not created.

Change the logic so that a hash file is considered stale if there is no
output file and still create the output.
Signed-off-by: Trent Piepho <tpiepho@gmail.com>

These are produced by the "cat" command to makeqstrdefs.py, to allow it to
not update unchanged files.  cmake doesn't know about them and so they are
not removed on a "clean".

This triggered a bug in makeqstrdefs.py where it would not recreate a
deleted output file (which is removed by clean) if a stale hash file with a
valid hash still existed.

Listing them as byproducts will cause them to be deleted on clean.
Signed-off-by: Trent Piepho <tpiepho@gmail.com>

Signed-off-by: stijn <stijn@ignitron.net>

Add `load_cert_chain`, `load_verify_locations`, `get_ciphers` and
`set_ciphers` SSLContext methods in ssl library, and update asyncio
`open_connection` and `start_server` methods with ssl support.
Signed-off-by: Carlos Gil <carlosgilglez@gmail.com>

This adds asyncio ssl support with SSLContext and the corresponding
tests in `tests/net_inet` and `tests/multi_net`.

Note that not doing the handshake on connect will delegate the handshake to
the following `mbedtls_ssl_read/write` calls.  However if the handshake
fails when a client certificate is required and not presented by the peer,
it needs to be notified of this handshake error (otherwise it will hang
until timeout if any).  Finally at MicroPython side raise the proper
mbedtls error code and message.
Signed-off-by: Carlos Gil <carlosgilglez@gmail.com>

Fixes two issues:
- None should not be allowed in the list, otherwise the corresponding entry
  in ciphersuites[i] will have an undefined value.
- The terminating 0 needs to be put in ciphersuites[len].
Signed-off-by: Damien George <damien@micropython.org>

Changes are:
- use ssl.SSLContext.wrap_socket instead of ssl.wrap_socket
- disable check_hostname and call load_default_certs() where appropriate,
  to get CPython to run the tests correctly
- pass socket.AF_INET to getaddrinfo and socket.socket(), to force IPv4
- change tests to use github.com instead of google.com, because certificate
  validation was failing with google.com
Signed-off-by: Damien George <damien@micropython.org>

And only enable this method when the relevant feature is available in
mbedtls.  Otherwise, if mbedtls doesn't support getting the peer
certificate, this method always returns None and it's confusing why it does
that.  It's better to remove the method altogether, so the error trying to
use it is more obvious.
Signed-off-by: Damien George <damien@micropython.org>

To match other ports that use mbedtls.
Signed-off-by: Damien George <damien@micropython.org>

Running `./do-esp32.sh` now generates this esp32_mbedtls_errors.c file,
with IDF v5.0.4.
Signed-off-by: Damien George <damien@micropython.org>

This commit adds:

1) Methods to SSLContext class that match CPython signature:

	- `SSLContext.load_cert_chain(certfile, keyfile)`
	- `SSLContext.load_verify_locations(cafile=, cadata=)`
	- `SSLContext.get_ciphers()` --> ["CIPHERSUITE"]
	- `SSLContext.set_ciphers(["CIPHERSUITE"])`

2) `sslsocket.cipher()` to get current ciphersuite and protocol
   version.

3) `ssl.MBEDTLS_VERSION` string constant.

4) Certificate verification errors info instead of
   `MBEDTLS_ERR_X509_CERT_VERIFY_FAILED`.

5) Tests in `net_inet` and `multi_net` to test these new methods.

`SSLContext.load_cert_chain` method allows loading key and cert from disk
passing a filepath in `certfile` or `keyfile` options.

`SSLContext.load_verify_locations`'s `cafile` option enables the same
functionality for ca files.
Signed-off-by: Carlos Gil <carlosgilglez@gmail.com>

Also, IDF v5.1.2 is now supported, just not used by default.

IDF v5.0.2 still builds but we cannot guarantee continued support for this
version moving forward.
Signed-off-by: IhorNehrutsa <IhorNehrutsa@gmail.com>

To reduce firmware size, because IDF v5.0.4 has increased in size.
Signed-off-by: Damien George <damien@micropython.org>

To make sure the build fits.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: IhorNehrutsa <Ihor.Nehrutsa@gmail.com>

Co-Authored-By: Trent Piepho <35062987+xyzzy42@users.noreply.github.com>
Signed-off-by: IhorNehrutsa <Ihor.Nehrutsa@gmail.com>

Signed-off-by: IhorNehrutsa <Ihor.Nehrutsa@gmail.com>

And simplify board configuration of DAC by using SOC_DAC_SUPPORTED.
Signed-off-by: IhorNehrutsa <Ihor.Nehrutsa@gmail.com>

Available in newer versions of the IDF.
Signed-off-by: IhorNehrutsa <IhorNehrutsa@gmail.com>

Signed-off-by: IhorNehrutsa <Ihor.Nehrutsa@gmail.com>

Disable unused EC curves and default certificate bundle which is not
implemented in MicroPython.  This reduces the firmware size significantly.

This follows commit 68f166da.
Signed-off-by: Carlos Gil Gonzalez <carlosgilglez@gmail.com>

Signed-off-by: Damien George <damien@micropython.org>

So that ports don't need to specify each of these files, they can simply
refer to the appropriate make/cmake variable.
Signed-off-by: Damien George <damien@micropython.org>

Necessary to get coverage of the new event functions.

Deletes the case that called usleep(delay) for mp_hal_delay_ms(), it seems
like this wouldn't have ever happened anyhow (MICROPY_EVENT_POOL_HOOK is
always defined for the unix port).

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

This is necessary to avoid watchdog timeout in long i2c.scan(), as
previously machine_i2c.c would call MICROPY_EVENT_POLL_HOOK if
MICROPY_EVENT_POLL_HOOK_FAST was not available.

Compared to previous implementation, this implementation removes the
ets_event_poll() function and calls the SDK function ets_loop_iter() from
MICROPY_INTERNAL_EVENT_HOOK instead.  This allows using the port-agnostic
functions in more places.

There is a small behaviour change, which is that the event loop gets
iterated in a few more places (i.e. anywhere that mp_event_handle_nowait()
is called).  However, this looks like maybe only modselect.c - and is
probably good to process Wi-Fi events in that polling loop.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

This should be the equivalent of the previous event poll hook macro.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

Previously this was not set, so potential for race conditions in interrupt
handlers this didn't issue SEV.  (Which is currently all of them, as far as
I can see.)

Eventually we might be able to augment the interrupt handlers that wake the
main thread to call SEV, and leave the others as-is to suspend the CPU
slightly faster, but this will solve the issue for now.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

This commit changes all uses in the rp2 port, and drivers that are
optionally supported by that port.

The old MICROPY_EVENT_POLL_HOOK and MICROPY_EVENT_POLL_HOOK_FAST macros are
no longer used for rp2 builds and are removed (C user code will need to be
changed to suit).

Also take the opportunity to change some timeouts that used 64-bit
arithmetic to 32-bit, to hopefully claw back a little code size.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

See previous commit for details of these functions.  As of this commit,
these still call the old hook macros on all ports.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

These are intended to replace MICROPY_EVENT_POLL_HOOK and
MICROPY_EVENT_POLL_HOOK_FAST, which are insufficient for tickless ports.

This implementation is along the lines suggested here:
https://github.com/micropython/micropython/issues/12925#issuecomment-1803038430

Currently any usage of these functions expands to use the existing hook
macros, but this can be switched over port by port.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

This header has no include guards and is apparently only supposed to be
included from py/mphal.h.

This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>

This patch simplifies the connection and sockets polling code, by switching
to a soft-timer to schedule polling code, and by using one node for
scheduling.  This also fixes any issues that could result from using a heap
allocated machine_timer, and includes better handling of the sockets poll
list.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>

This is usually called on soft-reboot, a NIC can implement this to do any
necessary cleaning up (such as invalidating root pointers).
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>

Signed-off-by: Damien George <damien@micropython.org>

This adds tests for, eg, -inf + inf which should be nan.
Signed-off-by: Damien George <damien@micropython.org>