We will need this to be able to DEVICE_DT_GET() bus devices from
tests/drivers/build_all in an upcoming commit.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Introduce a Kconfig variable that the SoC can set to indicate the
number of instances in Device Tree. This also fixes the accuracy of
the Elkhart Lake instance count where the code was previously assuming
up to 12 instances even though DT lists 15 nodes.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is about the it8xxx2 i2c master driver which
includes six SMBus channels. The enhanced channel i2c3,
i2c4, i2c5 are controller which are designed to support
the I2C protocol.
Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
The NPCX SMB modules provides full support for a two-wire SMBus/I2C
synchronous serial interface. Each SMBus/I2C interface is a two-wire
serial interface that is compatible with both Intel SMBus and Philips
I2C physical layer. There are 8 SMBus modules and 10 buses in NPCX7
series.
In NPCX7 series, the SMB5 and SMB6 modules contain a two-way switch to
support two separate SMBus/I2C buses (ports) with one SMB module
(controller) Please refer Section 4.7.2 in the datasheet. In order to
support it, this CL seperates the i2c driver into port and controller
drivers. The controller driver is in charge of i2c module operations
and internal state machine. The port driver is in charge of pin-mux
and connection between Zehpyr i2c api interface and controller driver.
All of modules have separate 32-byte transmit FIFO and 32-byte receive
FIFO buffers. These FIFO buffers reduce firmware overhead during long
SMBus transactions by allowing the Core to write or read more than one
data byte at a time to/from the SMB module.
The CL also includes:
— Add npcx i2c port/controller device tree declarations.
— Zephyr i2c api implementation.
— Add "i2c-0" aliases in npcx7m6fb.dts for i2c test suites.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Add an additional 4 ports for upcoming Arm based server that will have a
total of 12 I2C ports.
Similar to the original 8 ports, these additional 4 ports will not be
enabled unless specified at configuration time.
Signed-off-by: Dan Kalowsky <dkalowsky@amperecomputing.com>
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>
Add an emulation controller which routes I2C traffic to attached
emulators depending on the I2C address selected. This allows drivers
for I2C peripherals to be tested on systems that don't have that
peripheral attached, with the emulator handling the I2C traffic.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
We can utilize the devicetree macros to determine which instances to
enable. This will allow us to phase out the per instance Kconfig
symbols.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Adds a shim layer around the mcux lpc flexcomm driver to adapt it to the
zephyr i2c interface. It leverages heavily from the existing mcux lpi2c
shim driver.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This adds I2C bitbang driver for LiteX SoC builder with its bindings.
Signed-off-by: Robert Winkler <rwinkler@internships.antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
The 50-odd lines of boilerplate per I2C port is moved into a template
which is generated by CMake as needed at build-time.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This adds a SERCOM I2C driver for SAM0 series chips.
Tested with a SAMD21 chip on a SSD1306 display and a MLX90393
sensor. Only compile tested for SAMD20 and SAMR21.
Signed-off-by: Derek Hageman <hageman@inthat.cloud>
Add driver and device tree binding for the Low Power Inter-Integrated
Circuit (LPI2C) controllers found in the RV32M1 RI5CY SoC.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Driver for the I2C peripheral in the SiFive Blocks RTL
Repository (https://github.com/sifive/sifive-blocks).
Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
Adds a shim layer around the mcux lpi2c driver to adapt it to the zephyr
i2c interface. This shim driver leverages heavily from the mcux i2c shim
driver because the MCUXpresso SDK provides similar APIs for the i2c and
lpi2c peripherals.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
The i2c_atmel_sam3 driver was deprecated at release 1.9, this commit
removes it. Also pinmux_dev_atmel_sam3x driver is removed.
i2c_atmel_sam3 was the last one which depended on it.
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Add a new EEPROM simulated driver with all it's build infrastructure.
The EEPROM can be loaded/poked from applications by getting its funcs.
It is multi-instance capable, right now 2 instances are supported by
enabling them in KConfig.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Daniel Wagenknecht <wagenknecht@clage.de>
Changes add a translation layer to make nrfx TWI and TWIM drivers
work with Zephyr API.
Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
Normally a syscall would check the current privilege level and then
decide to go to _impl_<syscall> directly or go through a
_handler_<syscall>.
__ZEPHYR_SUPERVISOR__ is a compiler optimization flag which will
make all the system calls from the driver files directly link
to the _impl_<syscall>. Thereby reducing the overhead of checking the
privileges.
In the previous implementation all the source files would be compiled
by zephyr_source() rule. This means that zephyr_* is a catchall CMake
library for source files that can be built purely with the include
paths, defines, and other compiler flags that all zephyr source
files uses. This states that adding one extra compiler flag for only
one complete directory would fail.
This limitation can be overcome by using zephyr_libray* APIs. This
creates a library for the required directories and it also supports
directory level properties.
Hence we use zephyr_library* to create a new library with
macro _ZEPHYR_SUPERVISOR_ for the optimization.
Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
Add I2C Master driver for Nios-II I2C soft IP core.
This driver relies upon the Altera HAL I2C driver for all the bus level
transactions, interrupt handling and register programming.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
This was validated on the cc3220sf_launchxl board
using the Zephyr thermometer sample program
adapted to call the i2c driver directly, and fetching
samples from the on-board TMP006 temperature sensor.
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
Rename the Atmel SAM I2C driver based on TWIHS module to match the
convention:
<driver class>_<SoC family>_<hardware module used by the driver>
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Introducing CMake is an important step in a larger effort to make
Zephyr easy to use for application developers working on different
platforms with different development environment needs.
Simplified, this change retains Kconfig as-is, and replaces all
Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild
offers is replaced by a set of CMake extentions. These extentions have
either provided simple one-to-one translations of KBuild features or
introduced new concepts that replace KBuild concepts.
This is a breaking change for existing test infrastructure and build
scripts that are maintained out-of-tree. But for FW itself, no porting
should be necessary.
For users that just want to continue their work with minimal
disruption the following should suffice:
Install CMake 3.8.2+
Port any out-of-tree Makefiles to CMake.
Learn the absolute minimum about the new command line interface:
$ cd samples/hello_world
$ mkdir build && cd build
$ cmake -DBOARD=nrf52_pca10040 ..
$ cd build
$ make
PR: zephyrproject-rtos#4692
docs: http://docs.zephyrproject.org/getting_started/getting_started.html
Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
