Use the RTIO work queue to fake the i2c submit calls for drivers which
haven't yet implemented the API. Applications can change the size of
the work queue pool depending on how much traffic they have on the buses.
Signed-off-by: Yuval Peress <peress@google.com>
Change automated searching for files using "IRQ_CONNECT()" API not
including <zephyr/irq.h>.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Updates the API and types to match updated I2C terminology. Replaces master
with controller and slave with target.
Updates all drivers to match the changed macros, types, and API signatures.
Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This update Atmel sam i2c drivers to use pinctrl driver and API. It
updates all boards with new pinctrl groups format. This add missing
i2c-0 alias into sam4l_ek board.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
Similar to commit be32e33774, this
replaces the use of DEV_NAME macros with dev->name directly. This also
fixes#42996 for i2c_sam_twi.c in particular.
Signed-off-by: Ryan Armstrong <git@zerker.ca>
Stop using redundant DEV_DATA/DEV_CFG macros and use dev->data and
dev->config instead.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Adds the ability for I2C drivers to report synchronous transfer stats
using a I2C specific macro to define the device instance.
The macro creates a container for device_state which allows for per
instance device class common data structure to be used in the device
class api (ex: i2c.h). This is used to maintain per driver instance
stats for all i2c drivers. This is a reusable idea across other device
classes as desired.
Using Kconfig device class stats may be turned on/off individually
this way as well, in this case I2C_STATS.
Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
The macros are used to get the pin(s) of a given driver instance. Add
_INST prefix to match convention used by the devicetree.h. The original
macros can now be used to obtain pin(s) of an arbitrary device instance
identified by the nodelabel.
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Now that we generate a header that extern's all possible devicetree
based device struct we can remove DEVICE_DT_DECLARE and
DEVICE_DT_INST_DECLARE as they aren't needed anymore.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The SAM4L have a unique I2C driver. It shares simultaneously pins for
both master and slave controllers. Each controller have their own
instance. This introduces the TWIM controller that handles only the
master part.
The TWIM controller uses no copy and the driver was prepared to work
with both 7 and 10 bits address. The controller can handler up to 256
bytes for a single transfer allowing long data communication with
almost no CPU intervention.
The driver was wrote specifically to Zephyr. It receives a transfer
list of from upper layers to a specific device on the bus. It programs
the first and second transfer, if it exists, before start. At end of
full read/write interrupt, will program the next data block. This
process repeats until all transfers be executed. The driver uses
interrupt from TWIM to check for erros or program next tranfer.
Future work can enable low power mode on the driver allowing long
transfers with low power consumption.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
Pieter De Gendt
Yuval Peress
Gerson Fernando Budke
Gerard Marull-Paretas
Tom Burdick
Ryan Armstrong
Piotr Mienkowski
Kumar Gala