The WS2812 SPI driver needs the pixel data to be clocked out on time,
with no gaps between SPI frames. This makes the nordic,nrf-spi
compatible unsuitable for use, since the corresponding driver doesn't
use EasyDMA to clock out the tx buffers.
Force the arduino_spi node in the DT to SPIM mode by setting its
compatible to nordic,nrf-spim. On nRF52832, this driver is disabled by
default due to Product Anomaly Notice (PAN) 58.
We happen to not be affected by PAN 58 in this instance, because we
never read data over the SPIM, only write it. So it's safe to enable
the SPIM driver. This requires a board-specific Kconfig fragment for
nRF52-DK to enable CONFIG_SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58.
Fixes: #29877
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
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>
We rename the nRF51 Dev Kit board target (nrf51_pca10028)
to nrf51dk_nrf51422. We update all associated references
in the supportive documentation and all nRF51-related
cofigurations and overlay files in the samples and tests
in the tree.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Convert the GPIO based driver to the new GPIO API. (Only the
gpio_configure() call is affected).
Move configuration to DT where appropriate for both SPI and GPIO
drivers, only leaving the SPI vs. GPIO decision in Kconfig (in
addition to the basic enable for the driver.) Move some files around
to clean up as a result of this change.
led_ws2812 sample changes:
- make the pattern easier to look at by emitting less light
- use led_strip alias from DT to get strip device, allocate
appropriate struct led_rgb buffer, etc.
- move the pins around and remove 96b_carbon support (I have no board
to test with)
GPIO driver specific changes:
- str is required to write OUTSET/OUTCLR, not strb. The registers
are word-sized.
- the str[b] registers must all be in r0-r7, so "l" is the correct GCC
inline assembly constraint for both "base" and "pin"
SPI driver specific changes:
- match the GPIO driver in not supporting the update_channels API
method, which never made sense for this type of strip
- return -ENOMEM when the user tries to send more pixel data
than we have buffer space for instead of -EINVAL
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Application board.overlay files tend to be paired with
boards/board.conf files that extend the functionality of a board.
Move the overlay files to the same location as the config files that
they work with.
A few overlay files that are paired with a prj_board.conf file in the
application root directory are left in place.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
All drivers require DTS for their primary SPI settings.
Removing SPI_[0-9]_NAME config option added some more samples changes.
Usage of these options there was anyway not relevant.
Fixes#11064
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add support for building the WS2812 LED strip driver sample against
the new ws2812b_sw driver. Currently a configuration is only provided
for the BBC micro:bit board.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Remove SPI_*_IRQ_PRI from tests and samples.
Using DT to get the *_IRQ_PRI, we can't
override it using Kconfig.
If needed, use a BOARD_NAME.overlay file to
override default values.
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
This is similar to the LPD8806 sample, but uses the WS2812 driver
instead. The app configuration is a bit more finicky, so try to
provide helpful references. This could be made more beginner-friendly
with the addition of timing diagrams, etc., but this should be enough
for an experienced developer to use.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
