- Use DEVICE_MMIO_* macros for getting the registers.
- These macros automatically used the proper RAM/ROM address.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
Add the device name to the error logs so we can differentiate which
device caused the error and not just which port.
Signed-off-by: Yuval Peress <peress@google.com>
Adds the simplest possible I2Cv1 controller driver for STM32 with the RTIO
interface. Currently only interrupt driven transfers are supported.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Adds the simplest possible I2Cv2 controller driver for STM32 with the RTIO
interface. Currently only interrupt driven transfers are supported.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Co-authored-by: Tom Burdick <thomas.burdick@intel.com>
In preparation of the introduction of the STM32 I2Cv2 RTIO driver, move
some functions that are used in both drivers into a common file.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Rename all functions and macros starting by stm32_i2c_* to i2c_stm32_* to
harmonize the driver.
Reformat some indents for better alignment.
Remove i2c_stm32_get_config function declaration from header since it is
not used.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Changed to define ambiq spi/i2c dma mode as a binding property
instead of kconfig macros, making it more flexible for different
spi/i2c instances.
Signed-off-by: Hao Luo <hluo@ambiq.com>
1. rework IOM cmdq buffer instantiation
2. rework spi and i2c cache handling as it is incorrect.
3. buffers need to be aligned with DCACHE on
Signed-off-by: Swift Tian <swift.tian@ambiq.com>
Implement the functions of I2C host and target.
I2CM: supports nine hosts and each one able located at I2C interface
0~12.
supports two 32 bytes dedicated FIFO mode for read and write.
I2CS: supports three targets and each one able located at I2C
interface 0~8.
supports 16 bytes dedicated FIFO mode that only supports write or
read mode and the maximum buffer size is 256 bytes.
support non-FIFO write to shared FIFO read mode. The maximum
shared FIFO size for read is 256 bytes.
The APIs test include: i2c_write(), i2c_read(), i2c_burst_read(),
i2c_burst_write(), i2c_write_read()
Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
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>
Call i2c_rtio_complete with a non-zero status code in case of an error
so that application does not get stuck waiting for the completion queue
event. An example to this situation could be an I2C target device
responding with a NACK to a read or write request by the controller.
Signed-off-by: Tahsin Mutlugun <Tahsin.Mutlugun@analog.com>
The I2C shell allows a user to input "i2c scan i2c0" for instance, to
scan addresses on the i2c0 bus enabled in DT. This currently causes
an infinite loop when CONFIG_I2C_MAX32_INTERRUPT is enabled.
The infinite loops happens because 0-length transactions
(tx_len == rx_len == 0) not being handled both by the Async
i2c_max32_transfer and by the controller ISR.
This commit makes two changes:
1) [ISR] When an address ACK is received, if there is simply no data to
send or receive, then just give up the semaphore, preventing the
i2c_max32_transfer function from waiting infinitely.
2) [i2c_max32_transfer] After getting the semaphore back, if there is no
data to send or receive, then avoid waiting for the BUSY flag to clear
since clock stretching should not occur by definition for transactions
which merely contain an address ACK.
Signed-off-by: Brandon Hurst <brandon.hurst@analog.com>
Replace the manually implemented GPIO-based I2C recovery logic
with Zephyr's i2c_bitbang API.
Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
Determine if lpflexcomm wrapped lpi2c by instance and connect
irq differently dependending on that to support platforms with
both flexcomm wrapped and unwrapped lpi2c's.
Applying c1286a8d8d425805fcceb3b872325fb4c439a572 to RTIO version.
Authored-by: Declan Snyder <declan.snyder@nxp.com>
Signed-off-by: Luis Ubieda <luisf@croxel.com>
The Low Power Flexcomm driver manages the interrupt handling
and provides an API to register interrupt callbacks.
Register the NXP LPI2C interrupt handler.
Applying dca6e64c93f26db254089f20225854bb1f8fe9b4 on RTIO-version.
Authored-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Signed-off-by: Luis Ubieda <luisf@croxel.com>
Some NXP SoC's have a FlexComm interface that manages the
interrupts.
Applying 482e39ea9556f53adbb7f67d0d0da3d17bbbae90 on RTIO-version.
Authored-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Signed-off-by: Luis Ubieda <luisf@croxel.com>
Update the driver to account for variations in the SDK driver
when it uses the instance number instead of the base address.
Applying 49bdcd2ef2fd5c91ab36f08d29e5183df5437843 on RTIO-version.
Co-authored-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Signed-off-by: Luis Ubieda <luisf@croxel.com>
This patch establishes proper handling of RTIO OPs with multiple write
requests in the same transfer (as in: including OP_TRANSACTION flag).
An example of this is captured in test_ram_rtio_write_with_transaction
test). This patch makes that testcase pass for i2c_nrfx_twi_rtio.
Signed-off-by: Luis Ubieda <luisf@croxel.com>
This patch adds the missing completion call to the
RTIO_OP_I2C_CONFIGURE OPs. Without this, the drivers will lock when
calling i2c_configure().
Signed-off-by: Luis Ubieda <luisf@croxel.com>
Adds necessary pinctrl support to Arm SBCon I2C driver.
Signed-off-by: Samuel Chee <samche01@arm.com>
Signed-off-by: Sudan Landge <sudan.landge@arm.com>
Add support for an optional "idle disconnect" feature in the TCA954x
I2C multiplexer. When enabled via the `i2c-mux-idle-disconnect` device
tree property, the driver will disconnect all channels after each
transfer. This helps avoid address conflicts when multiple multiplexers
are present on the same I2C bus.
Even if the I2C transfer fails, the driver will still attempt to
disconnect the channels to ensure the bus is left in a consistent state.
If the disconnect operation itself fails, its error code will be returned
unless the transfer already failed with a different error.
This implementation is inspired by the Linux kernel driver for PCA954x
I2C multiplexers. Special thanks to Ofir Shemesh for valuable suggestion.
Signed-off-by: Hank Wang <wanghanchi2000@gmail.com>
This commit adds ambiq iom binding file to consolidate
spi and i2c that share the same IO Master module on
Apollo MCUs
Signed-off-by: Hao Luo <hluo@ambiq.com>
Allow STM32 I2C driver v2 to operate with DMA support even when
CONFIG_MEM_ATTR is disabled which happen when CONFIG_ARM_MPU is
intentionally disabled despite the CPU supports MPU.
By the way, remove a #ifdef directive on header files inclusion
that adds noise in the header file inclusion section without any
benefit.
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Fix STM32 I2C driver to not call cache management related functions
when DMA is not used. This change fixes an issue introduced by
commit 42c3a78148 ("i2c: stm32: Add cache memory support"). The issue
makes boards embedding this driver with both CONFIG_I2C_STM32_V2_DMA
and CONFIG_ARCH_MPU disabled to fail to build with an error trace message
like the below:
.../i2c_ll_stm32_v2.c:701: undefined reference to `mem_attr_check_buf'
Fixes: 42c3a78148
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
This commit provides an extension to the i2c_nrfx_twim driver.
It introduces possibility to acquire/release exclusive access to the
i2c bus. While the exclusive access to the i2c bus is acquired
you can access the underlying nrfx_twim driver directly.
Signed-off-by: Andrzej Kuros <andrzej.kuros@nordicsemi.no>
Due to the introduction of `shell_fprintf_normal` in PR #77192, we can
minimize caller overhead by eliminating direct `color` parameter passing.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
Aligned the `struct shell *` argument name from `shell_ctx` to `sh`
for consistency with other drivers' usage of `sh`, and to match
the `shell_cmd_handler` argument name.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
First commit to add support for Renesas RA i2c sci-b driver
Signed-off-by: Khoa Tran <khoa.tran.yj@bp.renesas.com>
Signed-off-by: Thao Luong <thao.luong.uw@renesas.com>
This commit changes to use ambiq hal power control APIs
to replace the previous register settings to power on
ambiq drivers.
Signed-off-by: Hao Luo <hluo@ambiq.com>
