Add stub functions for the I2C DMA callbacks, which are invoked
during or upon completion of DMA-based I2C transactions. Without
these, NULL pointer calls occur on DMA transfer complete or error
events, leading to faults within ISR context.
Signed-off-by: Simon Gilbert <srdgilbert@gmail.com>
- enabled combined interrupt configuration for stm32u0x serie.
- since stm32u0 serie doesn't support SMBUS we need to avoid
use SMBHEN and SMBDEN bits register.
Signed-off-by: Fabrice DJIATSA <fabrice.djiatsa-ext@st.com>
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>
The I2C API itself now enforces last msg stop, remove duplicate code
from driver.
Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
Change the get_config API for the stm32 I2C V2 driver.
It will also return the value of the content of TIMING register
for the I2C V2 bus.
This is hold by a i2c_config_timing structure of the device data
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Add the get_config API to the stm32 I2C driver.
It will return the value of the Clock Control register for i2C V1 bus
or the TIMING register for the I2C V2 bus.
This is hold by a i2c_config_timing structure of the device data
Add a bool to check if the I2C is configured or not.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
In driver runtime configuration function, calling
calling pm_device_runtime_get/put() will have the effect of performing
pinctrl change from sleep to default and back from default to sleep
which is useless and in turn enables and disables GPIO clocks two times.
Stop this crazyness and purely enable/disable clock, which might be
superfluous in some cases but which remains much more reasonable than
than the previous implementation.
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
pm_device_runtime_enable() will call i2c_stm32_suspend() if
pm_device_init_suspended() isn't called.
Since the aim is to perform suspension, just need to call
pm_device_runtime_enable().
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
During i2c_configure API execution, there is no way core
can go in low power mode. Hence, call to pm_device_busy_set/get API
is useless.
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
Remove unwanted "pm_device_runtime_get" lock which makes i2c power
management working incorrectly.
Fixes: #62790
Signed-off-by: Petr Hlineny <development@hlineny.cz>
Previous commit added support of large transactions on I2C v2,
this commit implements some changes to also add support
of large transactions on I2C v1. Some refactoring is also done
to put the code in the right source files.
Fixes zephyrproject-rtos#58866
Signed-off-by: Michael Grand <m.grand@trustngo.tech>
Add I2C bus recovery support to the STM32 v1 and v2 driver. The STM32 i2c
peripheral does not natively support I2C bus recovery so recovery is
performed using GPIO bitbanging. This mirrors the bus recovery
implementation for NXP MCUX LPI2C driver.
Fixes: zephyrproject-rtos#54917
Signed-off-by: Maxmillion McLaughlin <github@maxmclau.com>
Lock I2C device state when used so that Power Manager doesn't
suspend the device.
Initial state is a suspended device.
Signed-off-by: Cyril Fougeray <cyril.fougeray@worldcoin.org>
Clock and pins used by the I2C device are suspended when power
manager requires it.
Do not compile function i2c_stm32_suspend when PM_DEVICE isn't
enabled as it is left unused and will make the compiler throw
a warning.
Signed-off-by: Cyril Fougeray <cyril.fougeray@worldcoin.org>
If present, get the clock value for STM32 I2C from the clock source defined
in the dts.
Otherwise, use pclk.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Add support of STM32_DT_INST_DEV_DOMAIN_CLOCK_SUPPORT to condition the
configuration of an source clock for STM32 I2C.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
This commit modifies the way we define the I2C driver by using device tree
instance macros instead of node label names.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Add the possibility to use the clock parameter in dts to set the clock
source of I2C devices for all STM32 MCUs.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.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>
Many device pointers are initialized at compile and never changed. This
means that the device pointer can be constified (immutable).
Automated using:
```
perl -i -pe 's/const struct device \*(?!const)(.*)= DEVICE/const struct
device *const $1= DEVICE/g' **/*.c
```
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
MISRA C:2012 Rule 14.4 (The controlling expression of an if statement
and the controlling expression of an iteration-statement shall have
essentially Boolean type.)
Use `do { ... } while (false)' instead of `do { ... } while (0)'.
Use comparisons with zero instead of implicitly testing integers.
The commit is a subset of the original auditable-branch commit:
5d02614e34
Signed-off-by: Simon Hein <SHein@baumer.com>
Following zephyr's style guideline, all if statements, including single
line statements shall have braces.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
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>
The stm32's I2C peripheral has a maximum transmission size. Larger trans-
action, that I2C itself allows, can be achieved be using the peripheral's
reload-mode.
In order to do that, st's low-lever drivers need to be informed according-
ly. The previous iteration of the code mishandled the next_msg_flags para-
meter, causing the issue to manifest itself.
This refactors the inner loop of i2c_stm32_transfer() into its own func-
tion. This passes the message parameter by value in order to be able to
mutate its state while keeping the original datum from the user intact
during the entire procedure.
Fixes#43235
Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>
Refactors the remaining I2C drivers to use the shared driver class
initialization priority configuration, CONFIG_I2C_INIT_PRIORITY, to
allow configuring I2C drivers separately from other devices. This is
similar to other driver classes.
The default is set to CONFIG_KERNEL_INIT_PRIORITY_DEVICE to preserve the
existing default initialization priority for most drivers.
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
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>
The PINCTRL_DT_(INST_)DEFINE macros already defined the trailing ;,
making its usage inconsistent with other macros such as
DEVICE_DT_DEFINE.
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>
Since we removed various series headers, move stm32 driver
under main driver/pinmux folder.
Take this change into account into various drivers.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Currently there is no way to distinguish between a caller
explicitly asking for a semaphore with a limit that
happens to be `UINT_MAX` and a semaphore that just
has a limit "as large as possible".
Add `K_SEM_MAX_LIMIT`, currently defined to `UINT_MAX`, and akin
to `K_FOREVER` versus just passing some very large wait time.
In addition, the `k_sem_*` APIs were type-confused, where
the internal data structure was `uint32_t`, but the APIs took
and returned `unsigned int`. This changes the underlying data
structure to also use `unsigned int`, as changing the APIs
would be a (potentially) breaking change.
These changes are backwards-compatible, but it is strongly suggested
to take a quick scan for `k_sem_init` and `K_SEM_DEFINE` calls with
`UINT_MAX` (or `UINT32_MAX`) and replace them with `K_SEM_MAX_LIMIT`
where appropriate.
Signed-off-by: James Harris <james.harris@intel.com>
Convert from device_get_binding to DEVICE_DT_GET. In doing this we
no longer need the label in the devicetree node so we remove that.
Removed all __ASSERT_NO_MSG(clk) since we'll get a build error if
DEVICE_DT_GET cant be satisfied, and the clock control api's will
handle reporting if the device_is_ready.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Simon Gilbert
Robin-Charles Guihéneuf
Pieter De Gendt
Fabrice DJIATSA
Yuval Peress
Bjarki Arge Andreasen
Francois Ramu
Petr Hlineny
Gustavo Silva
Benedikt Schmidt
Wojciech Slenska
Erwan Gouriou
Nick Ward
Michael Grand
Maxmillion McLaughlin
Cyril Fougeray
Guillaume Gautier
Gerard Marull-Paretas
Henrik Brix Andersen
Simon Hein
Anas Nashif
Tom Burdick
Frank Terbeck
Maureen Helm
Erwan Gouriou
Yong Cong Sin
James Harris
Kumar Gala