The register access to SMPR1/SMPR2 was incorrect in three aspects:
1. For channels < 10, SMPR1 was cleared but SMPR2 should have been
cleared
2. The code was not thread-safe
3. An unneeded write was issued. (The compiler won't combine the
in-place bitwise operations into a single read-modify-write
sequence on `volatile` memory.)
Fixes https://github.com/RIOT-OS/RIOT/issues/20261
Adds a separate board for native64 instead of the `NATIVE_64BIT` workaround.
The files in `boards/native64` are more or less dummy files and just include
the `boards/native` logic (similar to `openlabs-kw41z-mini-256kib`).
The main logic for native is in `makefiles/arch/native.inc.mk`, `cpu/native`
and `boards/native`.
The remaining changes concern the build system, and change native board checks
to native CPU checks to cover both boards.
Use analog mode for GPIO_DISCONNECT, as this is said to have the lowest
current leakage due to disabling the Schmitt trigger and correctly
detect this in `gpio_ll_query_conf()`.
Also drop the `schmitt_trigger_disabled` member in `gpio_conf_t`, as
the Schmitt trigger is only ever disabled in Analog mode anyway and
cannot be freely configured.
The separate Schmitt trigger bit in the configuration is dropped, as
the Schmitt trigger is only every disabled when in `GPIO_DISCONNECT`
mode. So no need to encode the same information twice.
The `gpio_state_t` is improved to be a bitmask that holds the
MODER register value and a flag indicating whether open-drain mode
should be enabled.
Finally, `GPIO_DISCONNECT` is implemented. This is done by placing the
GPIO in analog mode, which by disabling the Schmitt trigger reduces
power consumption.
The script to fix the vendor header files has been renamed to
`fix_headers.sh` and now does two things:
1. Strip bogus type qualifiers in front of padding (as before)
2. Strip bogus `LITTLE_ENDIAN` defines.
If `register_interrupt` somehow fails, we leak the already created
POSIX timer by returning immediately.
Fix this by calling `timer_delete` before returning.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
When using `err`, no stacktrace is generated and the standard panic
functionallity of RIOT is sidestepped.
Use `core_panic` instead.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
In `timer_init`, `freq` is being check so its not unused.
In `timer_set_periodic`, `flags` is being used too.
Remove the uses of `(void)` in both cases.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Initial version to test 64 bit compatibility.
Instead of a separate board, the inital version for Linux/x86_64 is enabled
by setting the environment variable `NATIVE_64BIT=y` and compiling as usual.
Not currently implemented:
* Architectures other than x86_64 or operating systems other than Linux
* No FreeBSD support
* No Aarch support
* Rust support for x86_64
Add support for querying the frequency supported by
`periph_timer`. This allows applications which require
this feature to run on the `native` board.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
The tramp assembly was missing a `.note.GNU-stack` section,
meaning the compiler was forced to assume that we require
an executable stack.
Fix this by adding the necessary section.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
The underlying peripheral can only read from RAM. This uses the
existing infrastructure (already needed to work around the lack of a
hardware support for I2C_NOSTART) to unconditionally copy any to-be-sent
data into RAM.
This adds the features
- periph_gpio_ll_input_pull_down:
To indicate support for input mode with internal pull down
- periph_gpio_ll_input_pull_keep:
To indicate support for input mode with internal resistor
pulling towards current level
- periph_gpio_ll_input_pull_up:
To indicate support for input mode with internal pull up
- periph_gpio_ll_disconnect:
To indicate a GPIO can be disconnected
- periph_gpio_ll_open_drain:
To indicate support for open drain mode
- periph_gpio_ll_open_drain_pull_up:
To indicate support for open drain mode with internal pull up
- periph_gpio_ll_open_source:
To indicate support for open source mode
- periph_gpio_ll_open_source_pull_down:
To indicate support for open source mode with internal pull down
- Move common code for USART (shared SPI / UART peripheral) to its
own file and allow sharing the USART peripheral to provide both
UART and SPI in round-robin fashion.
- Configure both UART and SPI bus via a `struct` in the board's
`periph_conf.h`
- this allows allocating the two UARTs as needed by the use case
- since both USARTs signals have a fixed connection to a single
GPIO, most configuration is moved to the CPU
- the board now only needs to decide which bus is provided by
which USART
Note: Sharing an USART used as UART requires cooperation from the app:
- If the UART is used in TX-only mode (no RX callback), the driver
will release the USART while not sending
- If the UART is used to also receive, the application needs to power
the UART down while not expecting something to send. An
`spi_acquire()` will be blocked while the UART is powered up.
