Commit graph

550 commits

Author SHA1 Message Date
Peter A. Bigot
825aab3c28 drivers: i2c_sifive: fix deprecation warnings
The init macro used outdated spellings for the instance-specific
properties, resulting in build warnings when I2C was enabled.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-11-19 13:55:27 -05:00
Francois Ramu
fe28447cdf driver: i2c: Error handling issues in i2c_stm32_runtime_configure
This patch tests the return code when calling clock_control_get_rate
and completes the issue  #20503 seen on watchdog
[Coverity CID :205655]

Fixes #20503

Signed-off-by: Francois Ramu <francois.ramu@st.com>
2019-11-18 09:18:13 -06:00
Yannis Damigos
732b815f4b i2c_ll_stm32: Allow to send zero length message
Some applications, like i2c_scanner, require to
send zero length messages.

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-11-12 16:58:00 +01:00
Vincent Wan
0297756342 drivers: i2c: use CPU clock frequency in configuration on CC13XX/CC26XX
The I2C peripheral should be configured using the CPU clock frequency
and not the system clock frequency. This used to be fine because they
were the same before #19232, but now that the system clock is
RTC-based (which has a different frequency), we can no longer make
that assumption.

Fixes #20480

Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
2019-11-11 08:19:28 -06:00
Henrik Brix Andersen
546c3f2f21 drivers: i2c: eeprom_slave: update driver to match the new dts bindings
Update the I2C slave EEPROM driver to match the new atmel,at24 device
tree binding, where the size of the EEPROM is specified in bytes.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2019-11-07 16:32:15 -05:00
Ulf Magnusson
bd6e04411e kconfig: Clean up header comments and make them consistent
Use this short header style in all Kconfig files:

    # <description>

    # <copyright>
    # <license>

    ...

Also change all <description>s from

    # Kconfig[.extension] - Foo-related options

to just

    # Foo-related options

It's clear enough that it's about Kconfig.

The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)

    git ls-files '*Kconfig*' | \
        xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-04 17:31:27 -05:00
Ulf Magnusson
975de21858 kconfig: Global whitespace/consistency cleanup
Clean up space errors and use a consistent style throughout the Kconfig
files. This makes reading the Kconfig files more distraction-free, helps
with grepping, and encourages the same style getting copied around
everywhere (meaning another pass hopefully won't be needed).

Go for the most common style:

 - Indent properties with a single tab, including for choices.

   Properties on choices work exactly the same syntactically as
   properties on symbols, so not sure how the no-indentation thing
   happened.

 - Indent help texts with a tab followed by two spaces

 - Put a space between 'config' and the symbol name, not a tab. This
   also helps when grepping for definitions.

 - Do '# A comment' instead of '#A comment'

I tweaked Kconfiglib a bit to find most of the stuff.

Some help texts were reflowed to 79 columns with 'gq' in Vim as well,
though not all, because I was afraid I'd accidentally mess up
formatting.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-01 15:53:23 +01:00
Ulf Magnusson
5bb149e414 drivers: i2c: kconfig: Remove unused I2C_EEPROM_SLAVE_0/1 symbols
Unused since commit f3f8f96842 ("tests: i2c_slave_spi: update to
proposed DT compatible naming").

Found with a script.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-10-29 06:15:55 +01:00
Kumar Gala
9784f800a6 i2c: Rename CONFIG_I2C_[0..5]_NAME -> DT_I2C_[0..5]_NAME
Now that everything is DT based for I2C drivers we can rename the
CONFIG_I2C_[0..5]_NAME define to DT_I2C_[0..5]_NAME.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-10-23 11:31:32 -05:00
Kumar Gala
669e0f3b32 i2c: Move how we set HAS_DTS_I2C
Now that all I2C drivers utilize DTS we can select HAS_DTS_I2C in a
common place and don't need to do it per driver.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-10-23 11:31:32 -05:00
Kumar Gala
7e96ca5d80 i2c: Remove non DTS Kconfig params
All drivers utilize DTS now so we can remove the Kconfig params related
to !HAS_DTS_I2C.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-10-23 11:31:32 -05:00
Yannis Damigos
edb57a51d7 i2c_ll_stm32.c: Use macro to add I2C5 instance
Use macro to add I2C5 instance

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-10-23 06:43:56 -05:00
Ulf Magnusson
677f1e6db9 kconfig: Turn pointless/confusing 'menuconfig's into 'config's
Defining a symbol with 'menuconfig' just tells the menuconfig to display
any dependent symbols that immediately follow it in a separate menu.
'menuconfig' has no effect on symbol values.

Making a symbol that doesn't have any dependent symbols after it a
'menuconfig' should be avoided, because then you end up with an empty
menu, which is shown as e.g.

    [*] Enable foo ---

This is how it would be shown if there were children but they all
happened to be invisible as well.

With a regular 'config', it turns into

    [*] Enable foo

Change all pointless 'menuconfig's to 'config's.

See the section on 'menuconfig' on the Kconfig - Tips and Best Practices
page as well.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-10-22 13:53:06 -05:00
Mohamed ElShahawi
566d07e00c [ESP32] drivers: Add I2C Device tree support
- Add I2C modules to esp32.dtsi
- I2C Pins and bitrate config moved to esp32.dts

Signed-off-by: Mohamed ElShahawi <ExtremeGTX@hotmail.com>
2019-10-22 08:01:24 -05:00
Ulf Magnusson
1dbf64884d drivers: i2c: slave: Kconfig: Remove unused LOG_I2C_SLAVE_LEVEL symbol
Unused since commit f7dac85d15 ("drivers: i2c: move to new logger").

Found with a script.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-10-21 15:10:50 -05:00
Jose Alberto Meza
cb6097d283 drivers: i2c: xec: Handle additional I2C flags for read
I2C restart flag is now handled during I2C reads

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2019-10-11 14:44:03 -07:00
Richard Osterloh
4ce35300c8 drivers: i2c: Add STM32G4X I2C support
Add I2C driver support for STM32G4X SoC series.

Signed-off-by: Richard Osterloh <richard.osterloh@gmail.com>
2019-10-04 18:44:24 -07:00
Charles E. Youse
6e89842d3d drivers/i2c/i2c_dw: really, really make 64-bit clean
The base_address in the device configuration is used as a handle
to access an entity in memory. In C, we call that a 'pointer'.
Also in C, (versus, say, PL/M) we name these pointer things after
what they point not ('regs') not what they are ('base address').

Thus, we change the member to a pointer type and change its name.
This makes it compile cleanly regardless of machine pointer size,
while also cutting down on a bunch of casting noise.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
2019-10-02 10:24:56 -07:00
Charles E. Youse
89a984e644 drivers/i2c/i2c_dw.c: make 64-bit clean
Use UINT_TO_POINTER() macros to silence warnings about casts.

Fixes: #19219

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
2019-10-01 18:12:28 -04:00
Yannis Damigos
2f4c1ea362 i2c_ll_stm32_v2: Send STOP manually after NACK
In master trasmitter mode AutoEndMode is
always disabled, so we need to send STOP
manually if NACK is received.

Fixes #19059

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-09-27 13:51:15 -07:00
Andrzej Głąbek
dd4c57d564 dts: Use separate compatibles for Nordic TWI/TWIM/TWIS peripherals
This commit introduces separate "compatible" strings for dts nodes
representing different types of Nordic TWI peripherals. Previously
"nordic,nrf-i2c" was used for both TWI and TWIM, and TWIS was not
supported.

Quite a few files need to be touched by this commit but the changes can
be divided into groups of related or very similar ones, distinguishable
by the initial part of the path to the modified file:

* dts/bindings/i2c/
  new bindings for "nordic,nrf-twim" and "nordic,nrf-twis" are added
  and the one for "nordic,nrf-i2s" is renamed to "nordic,nrf-twi",
  common fields for all these bindings are extracted to a shared file

* dts/arm/nordic/
  "compatible" properties in i2cX nodes are updated (when there is no
  choice as only one type of TWI peripheral is available) or replaced
  with a comment pointing out that the proper type of peripheral needs
  to be picked at some upper layer

* drivers/i2c/
  both flavors of i2c_nrfx drivers are updated with the new names of
  macros generated from dts

* boards/
  all i2cX nodes in dts files for boards equipped with an nRF chip are
  updated with the proper "compatible" property, according to the type
  of TWI peripheral that is currently selected for the board by the
  corresponding Kconfig choice option (I2C_x_NRF_TWI*)

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2019-09-26 19:13:17 +02:00
Pavlo Hamov
85c1d90fd6 drivers: i2c: stm32_Slave: Fix addr flag handling
In the main Addr handler code the F1 workaround was used.
Add compile time swith depending on SOC family.
So workaround is not afffecting F2/F4 families.

Signed-off-by: Pavlo Hamov <pavlo_hamov@jabil.com>
2019-09-19 20:52:23 -04:00
Anas Nashif
3138e10d5b drivers: i2c: remove qmsi I2C driver
No users of this driver after dropping quark platforms.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-09-18 11:06:18 -05:00
Andy Ross
346cce31d8 kernel: Port remaining buildable syscalls to new API
These calls are buildable on common sanitycheck platforms, but are not
invoked at runtime in any tests accessible to CI.  The changes are
mostly mechanical, so the risk is low, but this commit is separated
from the main API change to allow for more careful review.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2019-09-12 11:31:50 +08:00
Filip Brozovic
2a2113e966 drivers: i2c: mcux_i2c: add instances 2 and 3
Adds instances 2 and 3 to the mcux i2c shim driver.

Signed-off-by: Filip Brozovic <fbrozovic@gmail.com>
2019-09-11 09:23:28 -05:00
Filip Brozovic
1fd4ec9577 drivers: i2c: mcux_i2c: add instance initialization macro
Use a macro instead of repeating the initialization code
for each i2c instance.

Signed-off-by: Filip Brozovic <fbrozovic@gmail.com>
2019-09-11 09:23:28 -05:00
Andrzej Głąbek
70d426bd33 modules: Kconfig: Unify the way of enabling instances in nrfx drivers
Use a consistent way of enabling particular instances of peripherals
in nrfx drivers through options defined in modules/Kconfig.nordic,
to make the usage of nrfx drivers in Zephyr, especially the ones for
which there are no Zephyr driver shims (yet), easier.

Jira: NCSDK-2744

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2019-09-10 13:23:44 +02:00
Jose Alberto Meza
599c2b80d2 drivers: i2c: xec: Add proper error handling for I2C transactions
Adjust I2C timeouts after k_busy_wait precision has increased.
Report error on first I2C message failure.
Send STOP condition when error is detected.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2019-09-08 17:11:26 -04:00
Anas Nashif
a47f0a35b9 i2c: remove unused qmsi driver
This driver was used by the sensor subsystem in Arudino 101. Remove as
the board was dropped.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-08-21 09:52:01 -04:00
Peter Bigot
5f481bb042 drivers: rearrange for standard use of extern "C" in private headers
Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.

Only updated in headers that already had support for drivers built with
a C++ compiler.

The spi_dw.h file defines macros to declare functions, then uses them
within a file that may have out-of-tree overrides.  In this case we
leave the including file extern "C" active for backward compatibility.

Background from issue #17997:

Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.

Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.

See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2019-08-13 18:00:31 +02:00
Nicolas Pitre
75bf3c5368 riscv: freedom: rename RISCV32 to RISCV
This code is common to 32- and 64-bit builds.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2019-08-08 00:29:24 -04:00
Christophe Priouzeau
303ff3fb8c drivers/i2c: Add support of stm32mp1
Add support of I2C. Add I2C5 configuration for the
arduino connector support.

Signed-off-by: Christophe Priouzeau <christophe.priouzeau@linaro.org>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@linaro.org>
2019-07-31 05:59:16 -04:00
Pavlo Hamov
dca45cb29d drivers: i2c: Add STM32F10X slave support
Add i2c-slave support for STM3210X SoC series.

Signed-off-by: Pavlo Hamov <pavlo_hamov@jabil.com>
2019-07-31 05:40:19 -04:00
Yannis Damigos
12a9ff3b0d i2c_ll_stm32: Use macros to add I2C instances
Use macros to add I2C instances

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-07-31 05:35:01 -04:00
Kumar Gala
4e7863dc41 dts: Make instance defines consistent
We generated a define for each instance to convey its existance of the
form:
	#define DT_<COMPAT>_<INSTANCE> 1

However we renamed all other instance defines to be of the form
DT_INST_<INSTANCE>_<FOO>.  To make things consistent we now generate a
define of the form:

	#define DT_INST_<INSTANCE>_<COMPAT> 1

We also now deprecate the DT_<COMPAT>_<INSTANCE> form and fixup all uses
to use the new form.

Fixes: #17650

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-07-30 17:10:31 -05:00
Andrzej Głąbek
e6fe542465 drivers: i2c_nrfx_twi: Make use of NRFX_TWI_FLAG_SUSPEND
Make use of the new flag introduced in nrfx v1.7.2 that suspends
transfers, in order to properly handle scattered I2C transactions,
especially to perform i2c_burst_write() in the way expected by
display drivers, i.e. as a continuous transaction on the bus,
without the repeated START between its two parts.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2019-07-29 13:10:30 +02:00
Kwon Tae-young
6a01db3be0 drivers: i2c_ll_stm32_v1: add timeout
Sometimes i2c operation does not return in a while loop.
Fix this by adding timeout to the i2c driver.

Fixes: #12261

Signed-off-by: Kwon Tae-young <tykwon@m2i.co.kr>
2019-07-25 10:50:50 -04:00
Piotr Zięcik
8f22b16b6c drivers: i2c_cc32xx: Get clock frequency from DTS
The i2c_cc32xx driver used system clock frequency
as a base for I2C clock frequency calculation.
This commit corrects that by obtaining the needed value from DTS.

Please note, that for I2C devices the clock-frequency property
specifies SCK frequency, instead of frequency of the clock driving
peripheral. To solve that problem, a new property was added.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2019-07-24 15:10:02 +02:00
Piotr Zięcik
aa363178d3 drivers: i2c_bitbang: Do not use CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC
On some SoCs the frequency of the system clock is obtained at run time
as the exact configuration of the hardware is not known at compile time.
On such platforms using CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC define
directly introduces timing errors.

This commit replaces CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC by the call to
inline function sys_clock_hw_cycles_per_sec() which always returns
correct frequency of the system clock.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2019-07-24 15:10:02 +02:00
Yannis Damigos
0f52c7137d i2c_ll_stm32_v2: Set slave_attached to false on slave unregister
Set slave_attached to false before exit
i2c_stm32_slave_unregister().

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-07-23 10:53:22 +02:00
Mieszko Mierunski
914daf4ec7 drivers: nrf: Fix PM for TWI and TWIM in case of multi instance
TWI and TWIM used single static variable for multiple instances.
It would cause problems in case of multiple instances of peripheral.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2019-07-15 12:05:19 +02:00
Anas Nashif
a2fd7d70ec cleanup: include/: move misc/util.h to sys/util.h
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
5eb90ec169 cleanup: include/: move misc/__assert.h to sys/__assert.h
move misc/__assert.h to sys/__assert.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
8f692c7d38 cleanup: include/: move i2c.h to drivers/i2c.h
move i2c.h to drivers/i2c.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
6aa9c3a68f cleanup: include/: move gpio.h to drivers/gpio.h
move gpio.h to drivers/gpio.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
46a5d1e5cb cleanup: include/: move dma.h to drivers/dma.h
move dma.h to drivers/dma.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
17ddd1714c cleanup: include/: move clock_control.h to drivers/clock_control.h
move clock_control.h to drivers/clock_control.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
ef281c4237 cleanup: include/: move sys_io.h to sys/sys_io.h
move sys_io.h to sys/sys_io.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
190e368275 cleanup: include/: move power.h to power/power.h
move power.h to power/power.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
43a49335f4 include: move interrupt controller headers to interrupt_controller/
Move internal and architecture specific headers from include/drivers to
subfolder for interrupt_controller:

include/drivers/interrupt_controller/

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-25 15:27:00 -04:00
Mieszko Mierunski
5867c36950 drivers: nrf: Add power management to nrf TWI driver.
Add power management to nrf TWI driver.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2019-06-25 14:55:30 +02:00
Mieszko Mierunski
05cdd285cf drivers: nrf: Add power management to nrf TWIM peripheral.
Add power management to nrf TWIM peripheral.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2019-06-25 14:55:30 +02:00
Kumar Gala
f20d2b6f41 drivers: rv32m1: remove bogus IRQ_PRI related defines
The defines related to IRQ priority don't exist and aren't used.  So
just pass 0 to IRQ_CONNECT for the priority field.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-24 07:22:27 -04:00
Kumar Gala
a52df691d1 drivers/i2c_rv32m1_lpi2c: Remove accidently added debug code
Some stray debug code that causes a build error got added, remove it so
things build propertly.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-21 08:17:57 -05:00
Kumar Gala
dba65ce47c drivers: Update DT IRQ alias defines
The defines should have had a _0 on them, now that we generate the
proper defines, fixup the cases that used that old scheme.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-21 07:53:05 -05:00
Anas Nashif
f2cb20c772 docs: fix misspelling across the tree
Found a few annoying typos and figured I better run script and
fix anything it can find, here are the results...

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-19 15:34:13 -05:00
Kumar Gala
03259dba90 drivers/i2c: Add missing HAS_DTS_I2C to nios
The NIOS I2C driver supported DTS, but missed HAS_DTS_I2C in
Kconfig for it.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-18 11:22:23 -04:00
Kumar Gala
4f714d3822 drivers/i2c: Add missing HAS_DTS_I2C to sbcon
The ARM SBCON I2C driver supported DTS, but missed HAS_DTS_I2C in
Kconfig for it.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-18 11:22:23 -04:00
Kumar Gala
a2693975d7 dts: Convert from DT_<COMPAT>_<INSTANCE>_<PROP> to DT_INST...
Change code from using now deprecated DT_<COMPAT>_<INSTANCE>_<PROP>
defines to using DT_INST_<INSTANCE>_<COMPAT>_<PROP>.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-14 08:02:15 -05:00
Roger N'Guessan
0a9d547cc1 drivers: i2c: enable I2C on STM32WB
Enable I2C on STM32WB

Signed-off-by: Roger N'Guessan <roger.nguessan@st.com>
2019-06-07 11:47:59 -04:00
Anas Nashif
4c32258606 style: add braces around if/while statements
Per guidelines, all statements should have braces around them. We do not
have a CI check for this, so a few went in unnoticed.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-06 15:20:21 +02:00
Michael Zimmermann
8ae17cb206 drivers: i2c: i2c_esp32: fix configuring speed
the driver was actually using 1/4th instead of 1/2th and
1/8th instead of 1/4th periods.

Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
2019-05-30 08:29:17 -04:00
Erwan Gouriou
ad356c4557 driver/i2c: stm32: Remove prompt on IP version symbols
Kconfig symbols I2C_STM32_V1 and I2C_STM32_V2 depends on SoC reference
and user should not have the possibility to choose one or the other.
Remove prompt on these symbols.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2019-05-24 22:29:51 -04:00
Derek Hageman
1202407b0c drivers: i2c: sam0: Fix missing break in speed setup
There was a missing break at the end of the high speed setup case,
so it would always return -ENOTSUP even when the high speed baud
was available.

Signed-off-by: Derek Hageman <hageman@inthat.cloud>
2019-05-21 15:57:21 -04:00
Brett Witherspoon
6eb0cb0d85 drivers: add CC13xx / CC26xx I2C driver
Add I2C driver for the TI CC13xx / CC26xx series SoCs.

Signed-off-by: Brett Witherspoon <spoonb@cdspooner.com>
2019-05-21 15:37:22 -04:00
Charles E. Youse
309dfef511 drivers/i2c/i2c_dw.c: rewrite for PCI(e) support
The legacy PCI support in the DesignWare I2C driver is replaced with
the new PCIe support. The Intel Quark X1000 SoC and the galileo board
configurations are updated accordingly.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
2019-05-21 08:23:22 -04:00
Charles E. Youse
59ebe6a072 drivers/i2c/i2c_dw.c: templatize device configuration boilerplate
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>
2019-05-21 08:23:22 -04:00
Henrik Brix Andersen
021e27cfed drivers: i2c: mcux_lpi2c: add support for I2C_0
Add support for I2C controller 0 in the NXP MCUX LPI2C driver shim.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2019-05-14 13:12:43 -05:00
Jose Alberto Meza
a94f1718ce drivers: i2c: mchp: Add I2C driver for MEC family
Add i2c_mchp_xec byte-to-byte driver to support I2C instances
for MEC family

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2019-05-08 15:02:26 -07:00
Derek Hageman
46730e1f57 drivers: i2c: Add SAM0 I2C driver
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>
2019-05-07 08:42:24 -04:00
Manivannan Sadhasivam
b31adf2d33 drivers: i2c: Add STM32L1X I2C support
Add I2C support for STM32L1X SoC series based on I2C_STM32_V1
driver.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2019-04-22 08:54:18 -05:00
Henrik Brix Andersen
8a4dbb5b03 drivers: i2c: rv32m1: add I2C driver for the RV32M1 RI5CY SoC
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>
2019-04-18 16:04:23 -05:00
Anas Nashif
3ae52624ff license: cleanup: add SPDX Apache-2.0 license identifier
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>
2019-04-07 08:45:22 -04:00
Patrik Flykt
97b3bd11a7 drivers: Rename reserved function names
Rename reserved function names in drivers/ subdirectory. Update
function macros concatenatenating function names with '##'. As
there is a conflict between the existing gpio_sch_manage_callback()
and _gpio_sch_manage_callback() names, leave the latter unmodified.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-04-03 17:31:00 -04:00
Patrik Flykt
21358baa72 all: Update unsigend 'U' suffix due to multiplication
As the multiplication rule is updated, new unsigned suffixes
are added in the code.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-28 17:15:58 -05:00
Patrik Flykt
24d71431e9 all: Add 'U' suffix when using unsigned variables
Add a 'U' suffix to values when computing and comparing against
unsigned variables.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-28 17:15:58 -05:00
Yannis Damigos
5f83759c1b i2c_ll_stm32_v2: Disable ReloadMode, if needed, when error occurs
Disable ReloadMode, if needed, when error occurs in polling mode.

Fixes #14568

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-03-28 09:42:35 -05:00
Yannis Damigos
75be0cc8d9 i2c_ll_stm32: Remove length < 255 restriction
Allow STM32 I2C driver to handle messages with
length > 255.

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2019-03-19 11:54:38 -05:00
Ramakrishna Pallala
e1639b5345 device: Extend device_set_power_state API to support async requests
The existing device_set_power_state() API works only in synchronous
mode and this is not desirable for devices(ex: Gyro) which take
longer time (few 100 mSec) to suspend/resume.

To support async mode, a new callback argument is added to the API.
The device drivers can asynchronously suspend/resume and call the
callback function upon completion of the async request.

This commit adds the missing callback parameter to all the drivers
to make it compliant with the new API.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2019-03-14 14:26:15 +01:00
Loic Poulain
df7de7c985 drivers: i2c: mcux_i2c: Fix unexpected I2C start condition
Ensure that no I2C start condition is inserted between messages of
a same transfer, except if explicitely requested (restart flag).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
2019-03-13 09:08:21 -05:00
Loic Poulain
ba0d4d8e92 drivers: i2c: mcux_lpi2c: Fix unexpected I2C start condition
Ensure that no I2C start condition is inserted between messages of
a same transfer, except if explicitely requested (restart flag).

This fix issue with I2C register write functions.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
2019-03-13 09:08:21 -05:00
Ulf Magnusson
53376394b7 kconfig: Remove blank lines at the beginning/end of files
Maybe this is some "just in case" thing that got copied around. There's
no need to have a blank line at the beginning or end of Kconfig files.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-03-13 07:29:42 -05:00
Patrik Flykt
4344e27c26 all: Update reserved function names
Update reserved function names starting with one underscore, replacing
them as follows:
   '_k_' with 'z_'
   '_K_' with 'Z_'
   '_handler_' with 'z_handl_'
   '_Cstart' with 'z_cstart'
   '_Swap' with 'z_swap'

This renaming is done on both global and those static function names
in kernel/include and include/. Other static function names in kernel/
are renamed by removing the leading underscore. Other function names
not starting with any prefix listed above are renamed starting with
a 'z_' or 'Z_' prefix.

Function names starting with two or three leading underscores are not
automatcally renamed since these names will collide with the variants
with two or three leading underscores.

Various generator scripts have also been updated as well as perf,
linker and usb files. These are
   drivers/serial/uart_handlers.c
   include/linker/kobject-text.ld
   kernel/include/syscall_handler.h
   scripts/gen_kobject_list.py
   scripts/gen_syscall_header.py

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-11 13:48:42 -04:00
Ulf Magnusson
0f53f467a8 kconfig: drivers: i2c: Remove redundant I2C_SLAVE dep.
I2C_EEPROM_SLAVE is already within an 'if I2C_SLAVE', in
drivers/i2c/slave/Kconfig.

'if FOO' is just shorthand for adding 'depends on FOO' to each item
within the 'if'. Dependencies on menus work similarly. There are no
"conditional includes" in Kconfig, so 'if FOO' has no special meaning
around a source. Conditional includes wouldn't be possible, because an
if condition could include (directly or indirectly) forward references
to symbols not defined yet.

Tip: When adding a symbol, check its dependencies in the menuconfig
('ninja menuconfig', then / to jump to the symbol). The menuconfig also
shows how the file with the symbol got included, so if you see
duplicated dependencies, it's easy to hunt down where they come from.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-03-09 10:00:54 -05:00
Andrzej Głąbek
257c28a200 drivers: nrfx: Add Kconfig checks for mutually exclusive peripherals
In Nordic SoCs, SPI and TWI peripherals with the same instance number
share certain resources and therefore cannot be used at the same time
(in nRF91 Series this limitation concerns UART peripherals as well).
This patch adds Kconfig checks ensuring that only one of such mutually
exclusive peripherals can be enabled.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2019-03-05 13:38:18 -05:00
Daniel Leung
7f5cee53ce i2c: i2c_dw: rename CONFIG_I2C_DW_0_IRQ_SHARED_NAME to DT_*
These options were removed from kconfig in previous patch. So rename
the leftovers as shared_irq driver options are defined in DTS now.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2019-03-01 09:42:56 -08:00
Carlos Stuart
75f77db432 include: misc: util.h: Rename min/max to MIN/MAX
There are issues using lowercase min and max macros when compiling a C++
application with a third-party toolchain such as GNU ARM Embedded when
using some STL headers i.e. <chrono>.

This is because there are actual C++ functions called min and max
defined in some of the STL headers and these macros interfere with them.
By changing the macros to UPPERCASE, which is consistent with almost all
other pre-processor macros this naming conflict is avoided.

All files that use these macros have been updated.

Signed-off-by: Carlos Stuart <carlosstuart1970@gmail.com>
2019-02-14 22:16:03 -05:00
Kumar Gala
9aa027b402 drivers: i2c: i2c_esp32: Fix Kconfig typo mismatch
The Kconfig symbols for RX/TX LSB first didn't match between the driver
and the Kconfig file.  Change driver to match Kconfig symbol names

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-02-11 22:29:58 -05:00
Kumar Gala
4c51684918 drivers: i2c: dw: Convert to new DT_<COMPAT>_<INSTANCE> defines
Convert designware i2c driver to use new defines so we can remove the
dts_fixup.h code for it.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-02-08 22:50:07 -05:00
Kumar Gala
36bd564acc i2c: i2c_imx: Convert to use DT_ prefixed defines
The i2c_imx driver has been using non DT_ prefixed defines for DT
generated defines.  Switch to use DT_ prefixed ones as we want to
deprecated the non DT_ prefixed defines.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-02-08 16:03:17 -06:00
Nathaniel Graff
b0844959f6 drivers/i2c: I2C driver for SiFive Freedom
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>
2019-02-07 10:47:48 -06:00
Daniel Leung
7695a72e3c drivers/interrupt_controller: shared_irq: configure by device tree
This allows the shared_irq driver to be configured by device tree.
With previous implementation, only the board configuration can
override the IRQ trigger, as the trigger config is a "choice" rather
than "config". With this patch, the driver can be fully configued at
the SoC level.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2019-02-06 07:18:15 -05:00
Piotr Mienkowski
bca692ee8c drivers: i2c_gecko: use DT_<COMPAT>_<INSTANCE>_<PROP> defines
Use the new DT_<COMPAT>_<INSTANCE>_<PROP> defines to instantiate
devices. This commit adds also ability to define individual pin
locations on SoC series that support the feature. Definitions of GPIO
pins assigned to a given location have been moved from soc_pinmap.h file
to board DTS file.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2019-02-01 19:09:06 -05:00
Kumar Gala
da474efe80 drivers: i2c: i2c_sbcon: Convert to new DT_<COMPAT>_<INSTANCE> defines
Convert i2c_sbcon driver to use new defines so we can remove the
dts_fixup.h code for it.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-01-25 08:55:06 -06:00
Andrzej Głąbek
8ab0a14170 drivers: i2c: nrfx: Add support for TWIM2 and TWIM3
Extend the i2c_nrfx_twim driver to support all TWIM instances
available on nRF9160.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2019-01-21 10:13:34 +01:00
Maureen Helm
d7dfa21391 drivers: i2c: Introduce mcux lpi2c shim driver
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>
2019-01-18 06:49:35 -05:00
Armando Visconti
ab06ec63f9 drivers/i2c: stm32: (FIX) add mutex to lock bus
Add mutex to lock STM32 I2C bus in order to guarantee
that data transfers are atomic and have exclusive access
to the bus.
Issue has been found fetching data from multiple sensors
on I2C bus in a mixed context of thread and triggered
interrupt.

Signed-off-by: Armando Visconti <armando.visconti@st.com>
2019-01-16 21:33:49 -05:00
Savinay Dharmappa
955781b896 boards: nios2: Add dts support for i2c
patch add dts suppoer for i2c.

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2019-01-16 12:35:30 -06:00
Varun Sharma
77c643a5a3 drivers: Modify drivers to use DEVICE_AND_API_INIT()
Modified drivers to use DEVICE_AND_API_INIT() instead of DEVICE_INIT()

This will make sure driver_api,is populated at build time and is exposed
to user space

Signed-off-by: Varun Sharma <varun.sharma@intel.com>
2019-01-15 10:39:34 -08:00
Peter A. Bigot
f3f8f96842 tests: i2c_slave_spi: update to proposed DT compatible naming
In driver and application code use the new device-tree values produced
by standard compatible-instance bindings.

As this code may be used as an example add a comment describing how the
binding instance number cannot be reliably used to distinguish multiple
instances.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-01-15 08:29:52 -06:00
Piotr Mienkowski
aa2c27d007 soc: silabs_exx32: Add independent Kconfig options for HAL libraries
Zephyr gecko drivers depend on libraries provided by the vendor. The
same libraries may also be used directly by the application code or
RAIL library. To facilitate the latter use case scenario this commit
adds Kconfig options to independently enable compilation of vendor
HAL library modules.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2019-01-08 13:31:42 -06:00
Piotr Mienkowski
f17e7c5942 drivers: i2c: add missing I2C_GECKO Kconfig option
This commit adds missing I2C_GECKO Kconfig option which currently is
being set implicitly via .defconfig file.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2019-01-08 13:31:42 -06:00
Piotr Mienkowski
973af2c8d7 dts: silabs: use 'aliases' to remove dts_fixup defines
By adding 'aliases' node in SoC .dtsi file it is possible to generate
DT_ defines which specify a logical name rather than relay on module
location on APB bus. E.g. DT_SILABS_GECKO_USART_40010000_LABEL becomes
DT_SILABS_GECKO_USART_USART_0_LABEL. Thus it is possible to remove
dts_fixup.h defines.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2019-01-08 11:56:02 -06:00
Piotr Mienkowski
1bfc52b81b drivers: i2c: remove deprecated i2c_atmel_sam3 driver
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>
2019-01-08 09:23:17 -06:00
Anas Nashif
74a74bb6b8 power: rename api sys_soc -> sys_
sys_soc is just redundant, just call APIs with sys_*.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-12-28 16:16:28 -05:00
Anas Nashif
9151fbebf2 power: rename APIs and removing leading _
Remove leading underscore from PM APIs. _ was used for internal APIs.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-12-28 16:16:28 -05:00
Andrzej Głąbek
4b43065cfc drivers: nrf: Enable nRF drivers by default in Kconfig
Make the following nRF peripheral drivers:
- ADC
- GPIO
- I2C
- SPI
- UART
- USB_DEVICE
enabled by default so that users do not need to explicitly enable them
in their applications after choosing an nRF SoC as the build target.

Kconfig options enabling these drivers depend on both a given hardware
feature (e.g. I2C) and an nRF family SoC selected, so effectively they
will be automatically enabled only when it is adequate (and in most
cases these drivers are the only option for a given hardware feature
on nRF SoCs).

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-12-21 21:01:37 +01:00
Pushpal Sidhu
f603e2509d drivers: i2c_ll_stm32_v2: Handle errors during data transfers
Check for ARLO, BERR, OVR, and NACK errors during any kind of
transmission. Helps fix getting into a while(1) loop in any of these
scenarios when in polling mode.

Signed-off-by: Pushpal Sidhu <psidhu.devel@gmail.com>
2018-12-17 08:17:24 -06:00
Olivier Martin
0fc8a357a1 drivers: i2c: nrfx: Prevent transfer overlapping
I2C transfers could simultaneous be called that would
cause an inconsistent state in NRFX I2C state (and HW).
The NRFX TWI driver would expect to be in state
`NRFX_DRV_STATE_INITIALIZED` while being in state
`NRFX_DRV_STATE_POWERED_ON`.

Signed-off-by: Olivier Martin <olivier.martin@proglove.de>
2018-12-14 08:46:35 +01:00
Andrew Boie
a68120de6d kernel: check retval of driver init
If initialization fails, zero the API struct so that
device_get_binding() can't fetch it, and do not mark
the driver object as initialized to user mode.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-12-07 19:33:23 -05:00
Mieszko Mierunski
d1b3efd98b drivers: nrf: Fix TWI and TWIM current consumption issue
TWI and TWIM  peripheral is now enabled only during transfers.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-12-07 12:54:25 -05:00
Erwan Gouriou
9062e97a45 drivers: stm32: check clock_control_on return value
Check clock_control_on return value now that it is checking appropriate
bus is used in the request.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2018-12-07 11:31:48 -05:00
Patrik Flykt
8ff96b5a57 drivers: Add 'U' to unsigned variable assignments
Add 'U' to a value when assigning it to an unsigned variable.
MISRA-C rule 7.2

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2018-12-04 22:51:56 -05:00
Michael Scott
d39d5881c3 drivers: i2c: fix build break for nrfx_twi* with newlib
When running sanitycheck for reel_board which selects
CONFIG_NRFX_TWIM it fails the following tests:
tests/misc/test_build/test_newlib
tests/kernel/errno/kernel.common.errno.newlib
tests/lib/mem_alloc/libraries.libc.newlib

/zephyr/drivers/i2c/i2c_nrfx_twim.c:144:3: error: expected declaration
specifiers or '...' before '(' token
   (bitrate == I2C_BITRATE_STANDARD ? NRF_TWIM_FREQ_100K         \
   ^
/zephyr/drivers/i2c/i2c_nrfx_twim.c:151:3: note: in expansion of macro
'I2C_NRFX_TWIM_FREQUENCY'
   I2C_NRFX_TWIM_FREQUENCY(           \
   ^~~~~~~~~~~~~~~~~~~~~~~
/zephyr/drivers/i2c/i2c_nrfx_twim.c:184:1: note: in expansion of macro
'I2C_NRFX_TWIM_DEVICE'
 I2C_NRFX_TWIM_DEVICE(0);
 ^~~~~~~~~~~~~~~~~~~~
/zephyr/drivers/i2c/i2c_nrfx_twim.c:154:3: error: expected declaration
specifiers or '...' before string constant
   "Wrong I2C " #idx " frequency setting in dts");         \
   ^
/zephyr/drivers/i2c/i2c_nrfx_twim.c:184:1: note: in expansion of macro
'I2C_NRFX_TWIM_DEVICE'
 I2C_NRFX_TWIM_DEVICE(0);
 ^~~~~~~~~~~~~~~~~~~~
zephyr/drivers/i2c/CMakeFiles/drivers__i2c.dir/build.make:62: recipe
for target
'zephyr/drivers/i2c/CMakeFiles/drivers__i2c.dir/i2c_nrfx_twim.c.obj'
failed

To fix this, let's replace the use of static_assert() with a more
generic macro: BUILD_ASSERT_MSG()  This should work across minimal
libc, newlibc and c++.

Signed-off-by: Michael Scott <mike@foundries.io>
2018-12-01 18:35:21 +01:00
Mieszko Mierunski
9dc3870276 drivers: nrf: Support I2C initial speed configuration from dts
Current implementation had fixed initial speed, this commit
fixes TWI and TWIM shims to use configuration from DTS.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-11-23 12:39:36 -05:00
Mieszko Mierunski
5a10087a25 dts: nrf: Remove TWI dts.fixup defines and use aliases instead.
Changed driver to use alias defines instead of fixup.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-11-20 22:18:09 +01:00
Kumar Gala
fd6e9c6f58 dts: i2c: cleanup CONFIG_I2C_x_IRQ_PRI
The majority of cases of CONFIG_I2C_x_IRQ_PRI should be
DT_I2C_x_IRQ_PRI.  So go ahead and fix them up.  Only the i2c_nios
driver still uses Kconfig for getting priority.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-16 13:57:02 -05:00
Andrzej Głąbek
20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Krzysztof Chruscinski
97345dbb1b logging: Fix errors in log usage
Couple of findings which were revealed after changing
LOG_MODULE_REGISTER macro:
- missing semicolons after LOG_MODULE_REGISTER()
- missing LOG_LEVEL defines
- other

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-11-10 12:38:29 -05:00
Himanshu Jha
d0a98b7cf9 drivers: Remove redundant semicolon
Remove the redundant semicolon used as a terminator in
`if`, `switch`, `while` statements.

Found using Coccinelle.

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
2018-11-07 10:34:06 -05:00
Erwan Gouriou
9df3a1f67f drivers/i2c: stm32: get clock bits/bus from dts files
Get STM32 I2C clocks bus and bits information from
device tree files.

Fixes #10435

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2018-11-06 16:14:13 -05:00
Aurelien Vouaillat
6282320427 drivers: i2c: i2c_nrfx_twi and twim: Return -EBUSY when I2C bus is busy
Return -EBUSY instead of -EIO

Signed-off-by: Aurelien Vouaillat <aurelien.vouaillat@proglove.de>
2018-11-05 14:23:17 +01:00
Kumar Gala
aa2bdbe322 drivers: Remove board.h include
We either don't need board.h in the driver or we should be include soc.h
instead.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-01 13:21:11 -04:00
Diego Sueiro
4ce6555c1d drivers: Introduce Silabs i2c shim driver
Adds the I2C shim driver for Silabs Gecko Devices.

Signed-off-by: Diego Sueiro <diego.sueiro@gmail.com>
2018-10-31 09:00:38 -05:00
Sebastian Bøe
b9c125f64c kconfig: Hide the DesignWare I2C driver on unsupported platforms
When users are configuring nRF applications they are given the option
to enable the DesignWare I2C driver. But they should not be given this
option because nRF SoCs do not have DesignWare I2C HW.

This commit hides the driver by default by introducing the config
option HAS_I2C_DW.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-10-25 07:32:05 +01:00
Anas Nashif
44f0a79dbb drivers: i2c: enable logging for drivers loading i2c-priv.h
i2c-priv.h is currently doing some logging and is included in various
i2c drivers, make sure the logger is enabled for those drivers.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-10-10 13:26:58 -04:00
Anas Nashif
f7dac85d15 drivers: i2c: move to new logger
Move to new logger subsystem.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-10-08 17:49:12 -04:00
Maureen Helm
50d276f1ae drivers: i2c: Select HAS_DTS_I2C in designware and qmsi drivers
Makes the designware and qmsi i2c drivers consistent with other i2c
drivers by selecting HAS_DTS_I2C in the driver.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-27 05:54:54 +05:30
Mieszko Mierunski
1dd5dc63c1 drivers: i2c: Add dts support for i2c slaves.
Adding i2c slave requires overlay with node definitions and
proper aliases depending on driver implementation.

Modified i2c_slave_api test to use information from dts.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-09-24 07:26:07 -05:00
Maureen Helm
873d63c59b drivers: i2c: Parse 10-bit addressing flag in mcux driver
Parses the new message-level flag for 10-bit addressing in the mcux i2c
driver.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-18 17:37:12 -04:00
Mieszko Mierunski
fd04e7def2 drivers: nrf: Switched nrf i2c drivers to 10 bit address msg flag
10 bit addressing is still not supported on nrf chips, but now
I2C_MSG_ADDR_10_BITS flag is checked.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-09-18 12:06:11 -04:00
Flavio Ceolin
67ca176754 headers: Fix headers across the project
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-09-17 15:49:26 -04:00
Yannis Damigos
7b0632822b drivers: i2c_ll_stm32_v1: Handle NACK during address tranmsission
In polling mode, if a NACK is received during address transmission
the driver waits forever the ADDR flag. We need to check AF flag
and stop the transmission if it is set.

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2018-08-27 12:52:53 -04:00
Yannis Damigos
32d159e335 drivers: i2c_ll_stm32_v1: Generate STOP condition if NACK
Acknowledge failure (AF) error occurs when the interface detects
a NACK bit. According to the reference manual, the transmitter
which receives a NACK must reset the communication:
– If Slave: lines are released by hardware
– If Master: a Stop or repeated Start condition must be generated
  by software

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
2018-08-27 12:52:53 -04:00
Diego Sueiro
4eee8a67f1 drivers/i2c/i2c_imx: Check for I2C bus busy before starting transaction
In some cases the minimum time between Stop and Start was not being
considered when starting a new transfer.
This patches adds a checking on the I2C Bus Busy flag before starting
a new transaction.

Signed-off-by: Diego Sueiro <diego.sueiro@gmail.com>
2018-08-21 18:54:41 -05:00
Flavio Ceolin
0866d18d03 irq: Fix irq_lock api usage
irq_lock returns an unsigned int, though, several places was using
signed int. This commit fix this behaviour.

In order to avoid this error happens again, a coccinelle script was
added and can be used to check violations.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-08-16 19:47:41 -07:00
Andrzej Głąbek
2469097b34 drivers: nrfx: Allow simultaneous use of SPI_0 and I2C_0 on nRF52810
In most Nordic SoCs the SPI and TWI peripherals with the same instance
number share certain resources and cannot be used at the same time.
In nRF52810 there are only single instances of these peripherals and
they are arranged in a different way so this limitation does not apply.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-08-13 18:45:04 -07:00
Ulf Magnusson
ec3eff57e0 Kconfig: Use the first default with a satisfied condition
Up until now, Zephyr has patched Kconfig to use the last 'default' with
a satisfied condition, instead of the first one. I'm not sure why the
patch was added (it predates Kconfiglib), but I suspect it's related to
Kconfig.defconfig files.

There are at least three problems with the patch:

  1. It's inconsistent with how Kconfig works in other projects, which
     might confuse newcomers.

  2. Due to oversights, earlier 'range' properties are still preferred,
     as well as earlier 'default' properties on choices.

     In addition to being inconsistent, this makes it impossible to
     override 'range' properties and choice 'default' properties if the
     base definition of the symbol/choice already has 'range'/'default'
     properties.

     I've seen errors caused by the inconsistency, and I suspect there
     are more.

  3. A fork of Kconfiglib that adds the patch needs to be maintained.

Get rid of the patch and go back to standard Kconfig behavior, as
follows:

  1. Include the Kconfig.defconfig files first instead of last in
     Kconfig.zephyr.

  2. Include boards/Kconfig and arch/<arch>/Kconfig first instead of
     last in arch/Kconfig.

  3. Include arch/<arch>/soc/*/Kconfig first instead of last in
     arch/<arch>/Kconfig.

  4. Swap a few other 'source's to preserve behavior for some scattered
     symbols with multiple definitions.

     Swap 'source's in some no-op cases too, where it might match the
     intent.

  5. Reverse the defaults on symbol definitions that have more than one
     default.

     Skip defaults that are mutually exclusive, e.g. where each default
     has an 'if <some board>' condition. They are already safe.

  6. Remove the prefer-later-defaults patch from Kconfiglib.

Testing was done with a Python script that lists all Kconfig
symbols/choices with multiple defaults, along with a whitelist of fixed
symbols. The script also verifies that there are no "unreachable"
defaults hidden by defaults without conditions

As an additional test, zephyr/.config was generated before and after the
change for several samples and checked to be identical (after sorting).

This commit includes some default-related cleanups as well:

  - Simplify some symbol definitions, e.g. where a default has 'if FOO'
    when the symbol already has 'depends on FOO'.

  - Remove some redundant 'default ""' for string symbols. This is the
    implicit default.

Piggyback fixes for swapped ranges on BT_L2CAP_RX_MTU and
BT_L2CAP_TX_MTU (caused by confusing inconsistency).

Piggyback some fixes for style nits too, e.g. unindented help texts.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-10 12:38:28 -07:00
Andrzej Głąbek
16e8860f6c drivers: i2c: nrfx: Use HAS_HW_NRF_* in driver options dependencies
Use the HAS_HW_NRF_* symbols instead of the SOC_SERIES_NRF* ones
to filter out the driver options unavailable on particular SoCs.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-08-08 17:23:55 +02:00
Ulf Magnusson
995411f4e2 drivers/i2c: kconfig: Clean up I2C Kconfigs a bit
- Get rid of duplicate I2C dependencies, which show up in the
  documentation as e.g. 'I2C && I2C'. The 'source's in
  drivers/i2c/Kconfig are already within an 'if I2C' block.

- Factor out I2C_GPIO_<n> dependencies in drivers/i2c/Kconfig.gpio into
  'if I2C_GPIO_<n>' blocks.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-02 19:12:52 +02:00
Ulf Magnusson
d1684a83a4 Kconfig: Clean up some symbol definitions
- Remove redundant 'n' defaults. 'n' is the default value for bool
  symbols.

  This makes the auto-generated documentation clearer as well: You get
  "implicitly defaults to n" instead of
  "- n if <propagated dependencies>".

- Shorten

      <type>
      prompt "foo"

  to

      <type> "foo"

  This works for all types, not just bool.

- Various formatting nits.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-01 12:47:17 -04:00
Daniel Leung
67b48ab2a8 drivers/i2c: i2c_dw: extends driver to support 8 controllers
This adds the necessary driver structs to support a total of 8
I2C controllers. This also allows each I2C controller to have
its own PCI vendor/device IDs.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2018-07-27 17:16:18 -04:00
Daniel Leung
982b4e14c4 drivers/i2c: extends Kconfig to support 8 controllers
This simply adds 3 set of new Kconfig options to support
a total of 8 I2C controllers.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2018-07-27 17:16:18 -04:00
Aurelien Jarno
6c49ce16c2 drivers: i2c: stm32: Kconfig: Remove redundant 'default n' properties
Bool symbols implicitly default to 'n'.

A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though, and is
inconsistent.

This will make the auto-generated Kconfig documentation have "No
defaults. Implicitly defaults to n." as well, which is clearer than
'default n if ...'

This is basically reapplying commit 133a299b50 ("drivers: i2c: Kconfig:
Remove redundant 'default n' properties"), which has been partially
reverted in commit c7875b75aa ("i2c: stm32_v2: implement slave
support").

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2018-07-25 07:19:12 -04:00
Aurelien Jarno
97bc5abedf drivers: i2c: stm32: add support for STM32F7
The STM32F7 uses the V2 version of the STM32 I2C controller. Add the
corresponding Kconfig, DTS, DTS fixup and pinmux entries.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2018-07-25 07:19:12 -04:00
Vitor Massaru Iha
f8718758e5 include: drivers: gpio: Turn functions generic - esp32
On 'drivers/i2c_esp32.c' there are functions useful for other
drivers. Functions and struct went moved to:

 * arch/xtensa/soc/esp32/peripheral.h
 * arch/xtensa/soc/esp32/soc.h
 * include/drivers/gpio/gpio_esp32.h

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-07-15 16:13:36 -04:00
Diego Sueiro
8c2acab53a drivers: add i.MX I2C driver shim
Adds a shim layer around the imx i2c driver to adapt it to the Zephyr
i2c master interface.

Signed-off-by: Diego Sueiro <diego.sueiro@gmail.com>
2018-07-06 15:55:57 -05:00
Daniel Wagenknecht
c7875b75aa i2c: stm32_v2: implement slave support
This patch adds I2C Slave support conforming to the syscalls and funcs,
only for the STM32 V2 I2C Driver for the moment.

It is capable of handling multi-master bus setups.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Daniel Wagenknecht <wagenknecht@clage.de>
2018-07-04 11:57:33 +02:00
Neil Armstrong
9a73cdfe9e i2c: slave: Add EEPROM I2C Slave driver
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>
2018-07-04 11:57:33 +02:00
Neil Armstrong
d55a6aa32d i2c: Add new I2C Slave syscalls
This patchs adds new I2C Syscalls for :
- I2C controllers slave support
- I2C Slave drivers support

I2C Controllers slave support adds 2 new ops to :
- register new slave driver
- unregister slave driver

Slave funcs consists on all the I2C phases :
- read or write request once address matches
- read or write done once the byte has been received/sent
- stop when the trasmit stops

I2C Slave drivers syscall are also added to make new
"I2C Slave" drivers to :
- register them to their I2C controller
- unregister them to their I2C controller

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-07-04 11:57:33 +02:00